WO2014026321A1

WO2014026321A1 - Two-dimensional display panel and repairing method thereof

Info

Publication number: WO2014026321A1
Application number: PCT/CN2012/080065
Authority: WO
Inventors: 庄益壮; 文松贤; 邓明锋
Original assignee: 深圳市华星光电技术有限公司
Priority date: 2012-08-13
Filing date: 2012-08-13
Publication date: 2014-02-20

Abstract

A two-dimensional display panel and a repairing method thereof. The two-dimensional display panel comprises multiple horizontal repairing lines (206a, 206b, 306a, 306b, 306c) in parallel with scanning lines (201a, 201b, 301a, 301b, 301c) and multiple perpendicular repairing lines (207a, 207b, 307a, 307b, 307c) in parallel with data lines (202a, 202b, 302a, 302b, 302c). The multiple horizontal repairing lines (206a, 206b, 306a, 306b, 306c) are arranged at one side of the multiple scanning lines (201a, 201b, 301a, 301b, 301c) in a one-to-one manner. The multiple perpendicular repairing lines (207a, 207b, 307a, 307b, 307c) are arranged at one side of the multiple data lines (202a, 202b, 302a, 302b, 302c) in a one-to-one manner. When one data line (302a) or scanning line (201a) is broken, the perpendicular repairing lines (207a, 207b, 307a) or the horizontal repairing lines (206a, 306a, 306b) are used to form an electric path, so as to bypass an open circuit part of the broken data line (302a) or scanning line (201a), so that a signal is transferred to pixel electrodes (200a, 300a) through the electric path.

Description

Flat display panel and repairing method thereof

Technical field

The invention relates to a flat display panel and a repairing method thereof, in particular to a flat display panel with a repaired line structure and a repairing method for broken wires.

Background technique

Today's consumer electronics products generally use thin and light flat panel displays, of which liquid crystal displays have been widely used by various electronic devices such as televisions, mobile phones, personal digital assistants, digital cameras, computer screens or notebook computers.

The thin film transistor liquid crystal display panel has gradually become the mainstream of the market due to its high image quality, good space utilization efficiency, low power consumption, and no radiation. Please refer to FIG. 1. FIG. 1 is a partial schematic view of a liquid crystal display panel in the prior art. The liquid crystal display panel includes a plurality of pixel electrodes 100, a plurality of data lines, and a plurality of scanning lines. Each of the pixel electrodes 100 is connected to a scan line 101 and a data line 102 through a thin film transistor 103. The thin film transistor 103 turns on or forms an open circuit according to the scan signal of the scan line 101: when the scan signal transmitted by the scan line 101 is at a high level, the thin film transistor 103 is turned on, and the data voltage on the data line 102 is output to the pixel electrode 100. . The liquid crystal molecules between the pixel electrode 100 and the common line 105 are rotated according to the voltage difference between the data voltage received by the pixel electrode 100 and the common voltage supplied by the common line 105 to generate different gray scales.

However, in the process of forming the liquid crystal display panel, the data line 102 or the scan line 101 sometimes has a disconnection G. In general, if the data line 102 is detected or the scan line 101 is broken before the Cell process, chemical vapor deposition (Chemical Vapor Deposition) is used. Vapor deposition repair, CVD Repair) to repair. However, if it is detected that the data line 102 or the scan line 101 is broken after the boxing process, the scrapping method is currently used. This will result in a large waste, affecting the yield of the product and increasing the production cost.

technical problem

An object of the present invention is to provide a flat display panel having a repair line structure and a repair method of the broken wire. After the boxing process, the broken or disconnected data line or scan line can be used to cut and connect the specific repair line by the laser, so that the signal that could not be transmitted through the broken data line or the scan line can pass through the repair line. Transfer. The flat display panel having the repair line structure and the repair method of the broken line can reduce the amount of product scrapping to solve the problems of the prior art.

Technical solution

According to an embodiment of the present invention, a flat display panel includes a plurality of pixel electrodes arranged in a matrix, a plurality of scanning lines parallel to each other and extending in a first direction, and a plurality of parallel lines facing each other and facing a first a data line extending in two directions, a plurality of switching transistors, a plurality of horizontal repair lines parallel to the plurality of scan lines, and a plurality of vertical repair lines parallel to the plurality of data lines, the second direction being perpendicular to the In the first direction, the plurality of switching transistors are coupled to the pixel electrode, the plurality of scan lines, and the plurality of data lines, and each of the switching transistors is configured to receive the coupled scan lines. And transmitting, by the scan signal, the data signal transmitted by the coupled data line to the corresponding pixel electrode, wherein the plurality of horizontal repair lines are one-to-one disposed on one side of the plurality of scan lines The plurality of vertical repair lines are one-to-one disposed on one side of the plurality of data lines. Wherein, when one of the scan lines has been broken, causing a pixel electrode to fail to receive the scan signal, selecting a first horizontal repair line on the plurality of horizontal repair lines, and selecting a first one on the plurality of vertical repair lines a vertical repair line and a second vertical repair line, the first vertical repair line and the second vertical repair line being respectively located on opposite sides of the pixel electrode. Forming a first cutting zone and a second cutting zone on the first horizontal repairing line, forming a third cutting zone and a fourth cutting zone in the first vertical repairing line, forming a second vertical repairing line a fifth cutting zone and a sixth cutting zone, the first and second vertical repair lines being located between the first and second cutting zones, the first horizontal repair line and the broken scan line Located between the third and fourth cutting zones, also between the fifth and sixth cutting zones, and the first and second vertical repairing lines are respectively associated with the broken line and the The position where the first horizontal repair line overlaps is electrically connected.

According to an embodiment of the present invention, a flat display panel includes a plurality of pixel electrodes arranged in a matrix, a plurality of scanning lines extending parallel to each other and extending in a first direction, and a number of the display panels. a data line parallel to each other and extending in a second direction, a plurality of switching transistors, a plurality of horizontal repair lines parallel to the plurality of scan lines, and a plurality of vertical repair lines parallel to the plurality of data lines, The second direction is perpendicular to the first direction, and the plurality of switching transistors are one-to-one coupled to the pixel electrode, the plurality of scan lines, and the plurality of data lines, and each of the switching transistors is used And receiving the data signal transmitted by the coupled data line to the corresponding pixel electrode when receiving the scan signal from the coupled scan line; the plurality of horizontal repair lines are one-to-one disposed on the One side of the plurality of scan lines, the plurality of vertical repair lines are one-to-one disposed on one side of the plurality of data lines; wherein, when one of the data lines is disconnected, one pixel electrode cannot receive the number a first cutting area and a second cutting area are formed on the first vertical repairing line, and the first horizontal repairing line on both sides of the pixel electrode forms a third cutting area and a fourth a cutting area, the second horizontal repairing line forming a fifth cutting area and a sixth cutting area, the first and second horizontal repair lines and the pixel electrode being located between the first and second cutting areas The first vertical repair line and the broken scan line are located between the third and fourth cut-off areas, and also between the fifth and sixth cut-off areas, and the first and the first The two horizontal repair lines are electrically connected at positions overlapping the broken data line and the first vertical repair line, respectively.

According to an embodiment of the present invention, the present invention further discloses a method for repairing a flat display panel, the planar display panel comprising a plurality of pixel electrodes arranged in a matrix, a plurality of scan lines parallel to each other and extending in a first direction, a plurality of data lines parallel to each other and extending in a second direction, a plurality of switching transistors, a plurality of horizontal repair lines parallel to the plurality of scan lines, and a plurality of vertical repair lines parallel to the plurality of data lines, The second direction is perpendicular to the first direction, and the plurality of switching transistors are coupled to the pixel electrode, the plurality of scan lines, and the plurality of data lines, one for each switch transistor And receiving the data signal transmitted by the coupled data line to the corresponding pixel electrode when receiving the scan signal from the coupled scan line; the plurality of horizontal repair lines are one-to-one One side of the plurality of scan lines, the plurality of vertical repair lines are one-to-one disposed on one side of the plurality of data lines, and the method includes: detecting whether the plurality of scan lines are broken; When one of them When the scan line has been disconnected, causing a pixel electrode to fail to receive the scan signal, selecting a first horizontal repair line on the plurality of horizontal repair lines, and selecting a first vertical repair line and a plurality of vertical repair lines a second vertical repair line, the first vertical repair line and the second vertical repair line are respectively located on two sides of the pixel electrode; a first cut-off area and a second cut-off area are formed on the first horizontal repair line Forming a third cutting zone and a fourth cutting zone in the first vertical repairing line, forming a fifth cutting zone and a sixth cutting zone in the second vertical repairing line, the first and second a vertical repair line between the first and second cut-off areas, the first horizontal repair line and the broken scan line being located between the third and fourth cut-off areas, also located at the fifth And the sixth cutting zone; and electrically connecting the first and second vertical repairing lines at positions overlapping the broken wire scanning line and the first horizontal repairing line, respectively.

According to an embodiment of the present invention, a method for repairing a flat display panel includes a plurality of pixel electrodes arranged in a matrix, a plurality of scan lines parallel to each other and extending in a first direction, a plurality of data lines parallel to each other and extending in a second direction, a plurality of switching transistors, a plurality of horizontal repair lines parallel to the plurality of scan lines, and a plurality of vertical repair lines parallel to the plurality of data lines, The second direction is perpendicular to the first direction, and the plurality of switching transistors are coupled to the pixel electrode, the plurality of scan lines, and the plurality of data lines, one for each switch transistor And receiving the data signal transmitted by the coupled data line to the corresponding pixel electrode when receiving the scan signal from the coupled scan line; the plurality of horizontal repair lines are one-to-one One side of the plurality of scan lines, the plurality of vertical repair lines are one-to-one disposed on one side of the plurality of data lines, and the method includes: detecting whether the plurality of data lines are broken; Among them When a data line has been disconnected and a pixel electrode is unable to receive the data signal, a first horizontal repair line and a second horizontal repair line are selected in the plurality of horizontal repair lines, and the plurality of vertical repair lines are selected. a first vertical repair line, the first horizontal repair line and the second horizontal repair line are respectively located on two sides of the pixel electrode; a first cut-off area and a second cut-off are formed on the first vertical repair line The first repair line on both sides of the pixel electrode forms a third cut-off area and a fourth cut-off area, and a second cut-off area and a sixth cut-off area are formed on the second horizontal repair line. The first and second horizontal repair lines and the pixel electrode are located between the first and second cutting regions, and the first vertical repair line and the broken scan line are located in the third and the third Between the four cutting zones, also between the fifth and sixth cutting zones; and the first and second horizontal repairing lines are respectively associated with the broken data line and the first vertical repairing line The overlapping positions are electrically connected.

Beneficial effect

According to an embodiment of the invention, the step of forming the cut-off region is to form the first, second, third, fourth, fifth and sixth cutting regions by laser. The step of connecting is to connect the broken data line to the two horizontal repair line by laser, and connect the broken data line to the vertical repair line by laser. Compared with the prior art, the present invention provides a flat display panel having a repair line structure and a repair method of the broken line. The laser cuts and connects the specific repair line, so that the data signal and the scan signal that cannot be transmitted through the broken data line or the scan line can be bypassed by the electrical circuit formed by the horizontal repair line and the vertical repair line. The data line or scan line that is broken is maintained for transmission. Therefore, the flat display panel having the repair line structure and the repair method of the broken wire of the present invention can reduce the amount of product scrapping.

DRAWINGS

1 is a partial schematic view of a liquid crystal display panel in the prior art.

2 is a partial schematic view of the flat display panel with the repair line structure before the repair scan line is broken according to the present invention.

3 is a partial schematic view of the first embodiment of the flat display panel of FIG. 2 after being repaired.

4 is a partial schematic view of a second embodiment of the flat display panel of FIG. 2 after repair.

FIG. 5 is a partial schematic view of the flat display panel with the repair line structure before the repair data line is broken according to the present invention.

6 is a partial schematic view of a third embodiment of the flat display panel of FIG. 5 after being repaired.

FIG. 7 is a partial schematic view showing a fourth embodiment of the flat display panel of FIG.

FIG. 8 is a partial schematic view of the flat display panel with the repair line structure before the repair scan line and the data line are broken.

FIG. 9 is a partial schematic view showing a fifth embodiment of the flat display panel of FIG. 8 after repair.

Figure 10 is a partial schematic view showing a sixth embodiment of the flat display panel of Figure 8 after repair.

BEST MODE FOR CARRYING OUT THE INVENTION

The following description of the various embodiments is provided to illustrate the specific embodiments of the invention. Directional terms as used in the present invention, such as "upper", "lower", "previous", "rear", "left", "right", "top", "bottom", "horizontal", "vertical", etc. , just refer to the direction of the additional schema. Therefore, the directional terminology used is for the purpose of illustration and understanding of the invention.

Please refer to FIG. 2. FIG. 2 is a partial schematic view of the flat display panel with the repair line structure before the repair scan line is broken. The flat display panel includes a plurality of pixel electrodes and hundreds of scan lines, data lines, common lines, horizontal repair lines, and vertical repair lines. For the sake of simplicity and convenience of description, the following embodiments illustrate only a partial flat display panel. . The flat display panel includes a plurality of

pixel electrodes

200a and 200b arranged in a matrix, a plurality of

scanning lines

201a and 201b parallel to each other and extending in a first direction A, and a plurality of data lines extending parallel to each other and extending in a second direction B. 202a and 202b, a plurality of

switching transistors

203a and 203b,

horizontal repair lines

206a and 206b parallel to the scan line 201a, and

vertical repair lines

207a and 207b parallel to the data line 202a, the second direction B being perpendicular to the first direction A. Preferably, the switching transistor 203a is a thin film transistor, the gate of the switching transistor 203a is coupled to the scan line 201a, the source is coupled to the data line 202a, the drain is coupled to the pixel electrode 200a, and the structure and connection relationship of the switching transistor 203b are The switching transistor 203a is the same and will not be further described herein. When the switching transistor 203a receives the scan signal from the coupled scan line 201a, the data signal transmitted by the coupled data line 202a is turned on to the corresponding pixel electrode 200a. The common line 205 outputs a common voltage Vcom, and the liquid crystal molecules between the pixel electrode 200a and the common line 205 are rotated according to the common voltage Vcom of the common line 205 and the data voltage received by the pixel electrode 200a to display different gray scales. .

In the card forming process, a plurality of

scanning lines

201a and 201b and a plurality of

horizontal repair lines

206a and 206b are formed by using the same mask development process (PEP), and the plurality of

horizontal repair lines

206a and 206b are one-to-one. It is disposed on one side of the plurality of

scanning lines

201a and 201b. Then, a plurality of mask lines are used to form a plurality of

data lines

202a and 202b and a plurality of

vertical repair lines

207a and 207b, and the plurality of

vertical repair lines

207a and 207b are one-to-one disposed on the plurality of data lines 202a and One side of 202b. During the process of the boxing process, it is detected whether each of the

scanning lines

201a and 201b and each of the

data lines

202a and 202b can normally transmit signals. When the scan line 201a is broken, as shown by the broken line G in FIG. 2, the scan signal will not be transmitted to the switching transistor 203b.

Please refer to FIG. 3. FIG. 3 is a schematic diagram showing the first embodiment of the flat display panel shown in FIG. When it is detected that one of the scan lines 201a has a disconnection G, so that the pixel electrode 200a cannot receive the scan signal, one of the plurality of horizontal repair lines is selected as a first horizontal repair line and from a plurality of vertical repair lines. The two vertical repair lines are selected as the first vertical repair line and the second vertical repair line. In the embodiment, the horizontal repair line 206a is used as the first horizontal repair line, and the

vertical repair lines

207a and 207b are respectively used as The first vertical repair line and the second vertical repair line. The first vertical repair line 207a and the second vertical repair line 207b must be located on both sides of the pixel electrode 200a to which the broken scan line 201a is connected.

Next, a first cut-off region 2061 and a second cut-off region 2062 are formed on the first horizontal repair line 206a by laser. And forming a third cutting area 2073, a fourth cutting area 2074, a fifth cutting area 2075 and a sixth cutting area 2076 by using the laser on the first and second vertical repairing

lines

207a and 207b on both sides of the pixel electrode 200a. . The two

vertical repair lines

207a and 207b and the pixel electrode 200a are located between the first cut region 2061 and the second cut region 2062. The horizontal repair line 206a and the broken scan line 201a are located between the third cut region 2073 and the fourth cut region 2074, and also between the fifth cut region 2075 and the sixth cut region 2076.

Next, the vertical repair line 207a and the broken scan line 201a are connected by the laser at the overlapping position 2011, and the vertical repair line 207a and the horizontal repair line 206a are connected by the laser at the overlapping position 2063, and the laser will continue to be used. The vertical repair line 207b is connected to the broken scan line 201a at the position 2012 where it is overlapped, and finally the laser is used to connect the vertical repair line 207b with the horizontal repair line 206a at the overlapping position 2064. As described above, the two

vertical repair lines

207a and 207b and the horizontal repair line 206a form an electrical path (bypass Route) bypasses the position where the scan line 201a has been disconnected, so that the scan signal can continue to pass normally through the electrical path at the position where the scan line 201a is broken.

Please refer to FIG. 4. FIG. 4 is a schematic diagram showing a second embodiment of the flat display panel shown in FIG. In another embodiment, the horizontal repair line 206b is selected from the plurality of horizontal repair lines as the first horizontal repair line, and the

vertical repair lines

207a and 207c are selected from the plurality of vertical repair lines as the first vertical repair line and the second Vertical repair line. The first vertical repair line 207a and the second vertical repair line 207c must be located on both sides of the pixel electrode 200a to which the broken scan line 201a is connected.

Next, a first cut-off region 2061 and a second cut-off region 2062 are formed on the first horizontal repair line 206a by laser. And forming a third cutting area 2073, a fourth cutting area 2074, a fifth cutting area 2075, and a sixth cutting area 2076 by using the laser on the first and second vertical repairing

lines

207a and 207c on both sides of the pixel electrode 200a. . The two

vertical repair lines

207a and 207c and the pixel electrode 200a are located between the first cut region 2061 and the second cut region 2062. The horizontal repair line 206a and the broken scan line 201a are located between the third cut region 2073 and the fourth cut region 2074, and also between the fifth cut region 2075 and the sixth cut region 2076.

Next, the vertical repair line 207a and the broken scan line 201a are connected by the laser at the overlapping position 2011, and the vertical repair line 207a and the horizontal repair line 206a are connected by the laser at the overlapping position 2063, and the laser will continue to be used. The vertical repair line 207c is connected to the broken line scan line 201a at the position 2012 where it is overlapped, and finally the laser is used to connect the vertical repair line 207c with the horizontal repair line 206a at the overlapping position 2064. As described above, the two

vertical repair lines

207a and 207c and the horizontal repair line 206a form an electrical path bypassing the position where the scan line 201a has been broken, so that the scan signal can pass the electrical position at the position where the scan line 201a is broken. The path continues to pass normally.

Note that, limited by the limitations of the drawing, FIGS. 3 and 4 only select the horizontal repair line and the vertical repair line adjacent to the broken scan line 201a for illustration. However, in essence, it can be noted from FIG. 3 and FIG. 4 that for any broken scan line, two vertical repair lines respectively located on both sides of the pixel electrode to which the broken scan line is connected may be selected, and Any horizontal repair line forms an electrical path to bypass the break line G of the scan line.

Please refer to FIG. 5. FIG. 5 is a partial schematic view of the flat display panel with the repair line structure before the repair data line is broken. The flat display panel includes a plurality of

pixel electrodes

300a and 300b arranged in a matrix, a plurality of scanning lines 301a, 301b and 301c which are parallel to each other and extend in a first direction A, and the plurality of lines are parallel to each other and extend in a second direction

B. Data lines

302a, 302b, and 302c, a plurality of switching

transistors

303a, 303b, and 303c, a plurality of

horizontal repair lines

306a, 306b, and 306c parallel to the scan line 301a, and

vertical repair lines

307a, 307b, and 307c parallel to the data line 302a. The second direction B is perpendicular to the first direction A. The switching transistor 303a may be a thin film transistor, the gate of the switching transistor 303a is coupled to the scan line 301a, the source is coupled to the data line 302a, the drain is coupled to the pixel electrode 300a, and the structure and connection relationship of the switching

transistors

303b and 303c are The switching transistor 303a is the same and will not be further described herein. When the switching transistor 303a receives the scan signal from the coupled scan line 301a, the data signal transmitted by the coupled data line 302a is turned on to the corresponding pixel electrode 300a. The common line 305 outputs a common voltage Vcom, and the liquid crystal molecules between the pixel electrode 300a and the common line 305 are rotated according to the common voltage Vcom of the common line 305 and the voltage difference of the data voltage received by the pixel electrode 300a to display different grays. Order.

In the box forming process, a plurality of scanning lines 301a, 301b, and 301c and a plurality of

horizontal repair lines

306a, 306b, and 306c, and a plurality of

horizontal repair lines

306a, 306b are formed by the same mask development process (PEP). And 306c are one-to-one disposed on one side of the plurality of scanning lines 301a, 301b, and 301c. Then, a plurality of mask lines are used to form a plurality of

data lines

302a, 302b, and 302c and a plurality of

vertical repair lines

307a, 307b, and 307c, and the plurality of

vertical repair lines

307a, 307b, and 307c are one-to-one. One side of the plurality of

data lines

302a, 302b, and 302c. During the process of the boxing process, it is detected whether each of the scanning lines 301a and 301b and each of the

data lines

302a and 302b can normally transmit signals. When the data line 302a is disconnected, as shown by G at the broken line in Fig. 5, the data signal will not be transmitted.

Please refer to FIG. 6. FIG. 6 is a schematic diagram showing a third embodiment of the flat display panel shown in FIG. When it is detected that one of the data lines 302a has a disconnection G, so that the pixel electrode 300a cannot receive the data signal, first two of the horizontal repair lines are selected as the first horizontal repair line and the second horizontal repair line. One of several vertical repair lines is selected as the first vertical repair line. In the present embodiment, the

horizontal repair lines

306a and 306b are selected as the first horizontal repair line and the second horizontal repair line, and the vertical repair line 307a is selected as the first vertical repair line. The first horizontal repair line 306a and the second horizontal repair line 306b must be located on both sides of the pixel electrode 300a to which the disconnected data line 302a is connected.

Next, a first cut-off area 3071 and a second cut-off area 3072 are formed on the vertical repair line 307a of the broken data line 302a by a laser. A third cutting zone 3063, a fourth cutting zone 3064, a fifth cutting zone 3065 and a sixth cutting zone 3066 are respectively formed by the two horizontal repairing

lines

306a and 306b on both sides of the pixel electrode 300a. The two

horizontal repair lines

306a and 306b and the pixel electrode 300a are located between the first cut region 3071 and the second cut region 3072. The vertical repair line 307a and the broken data line 302a are located between the third cut region 3063 and the fourth cut region 3064, and also between the fifth cut region 3065 and the sixth cut region 3066.

Next, the horizontal repair line 306a and the broken data line 302a are electrically connected by a laser at a position 3021 overlapping with the broken line, and the horizontal repair line 306a and the vertical repair line 307a are electrically connected by a laser at an overlapping position 3061. The laser electrically connects the horizontal repair line 306b to the position 3022 where the broken data line 302a overlaps, and electrically connects the horizontal repair line 306b and the vertical repair line 307a at the overlapping position 3062 by laser. As described above, the two

horizontal repair lines

306a and 306b and the vertical repair line 307a form an electrical path bypassing the break line G of the data line 302a so that the data signal can pass the electrical position at the position where the data line 302a is broken. The path continues to pass normally.

Please refer to FIG. 7. FIG. 7 is a schematic diagram showing a fourth embodiment of the flat display panel shown in FIG. In the present embodiment, the

horizontal repair lines

306c and 306b are selected as the first horizontal repair line and the second horizontal repair line, and the vertical repair line 307c is selected as the first vertical repair line. The first horizontal repair line 306c and the second horizontal repair line 306b must be located on both sides of the pixel electrode 300a to which the disconnected data line 302a is connected.

Next, a first cut-off area 3071 and a second cut-off area 3072 are formed on the vertical repair line 307c of the broken data line 302a by a laser. A third cutting zone 3063, a fourth cutting zone 3064, a fifth cutting zone 3065 and a sixth cutting zone 3066 are respectively formed by the two horizontal repairing

lines

306c and 306b on both sides of the pixel electrode 300a. The two

horizontal repair lines

306c and 306b and the pixel electrode 300a are located between the first cut region 3071 and the second cut region 3072. The vertical repair line 307c and the broken data line 302a are located between the third cut region 3063 and the fourth cut region 3064, and also between the fifth cut region 3065 and the sixth cut region 3066.

Next, the horizontal repair line 306c is electrically connected to the broken data line 302a at a position 3021 overlapping by the laser, and the horizontal repair line 306c and the vertical repair line 307c are electrically connected by a laser at a position 3061 which is overlapped. The laser electrically connects the horizontal repair line 306b to the position 3022 where the broken data line 302a overlaps, and electrically connects the horizontal repair line 306b and the vertical repair line 307c at the overlapping position 3062 by laser. As described above, the two

horizontal repair lines

306c and 306b and the vertical repair line 307c form an electrical path bypassing the break line G of the data line 302a so that the data signal can pass the electrical position at the position where the data line 302a is broken. The path continues to pass normally.

Please note that, limited by the limitations of the drawing, FIGS. 6 and 7 only select the horizontal repair line and the vertical repair line adjacent to the broken data line 302a for illustration. However, in essence, it can be noted from FIG. 6 and FIG. 7 that for any broken data line, two horizontal repair lines respectively located on both sides of the pixel electrode to which the disconnected data line is connected may be selected, and Any vertical repair line forms an electrical path to bypass the break of the data line.

FIG. 8 is a partial schematic view of the flat display panel with the repair line structure of the present invention before the repair scan line and the data line are broken. The flat display panel includes a plurality of pixel electrodes 400a-400d arranged in a matrix, a plurality of scanning lines 401a-401c parallel to each other and extending in a first direction A, and a plurality of data lines extending parallel to each other and extending in a second direction B. 402a-402c, a plurality of switching transistors 403a-403d, horizontal repair lines 406a-406c parallel to scan line 401a, and vertical repair lines 407a-407c parallel to data line 402a, second direction B being perpendicular to said first direction A. The switching transistor 403a may be a thin film transistor, the gate of the switching transistor 403a is coupled to the scan line 401a, the source is coupled to the data line 402a, the drain is coupled to the pixel electrode 400a, and the structure and connection relationship of the switching transistors 403b-403d are The switching transistor 403a is the same and will not be further described herein. When the switching transistor 403a receives the scan signal from the coupled scan line 401a, the data signal transmitted by the coupled data line 402a is turned on to the corresponding pixel electrode 400a. The common line 405 outputs a common voltage Vcom, and the liquid crystal molecules between the pixel electrode 400a and the common line 405 are rotated according to the common voltage Vcom of the common line 405 and the voltage difference of the data voltage received by the pixel electrode 400a to display different grays. Order.

In the box forming process, a plurality of scanning lines 401a-401c and a plurality of horizontal repair lines 406a-406c are formed by using the same mask development process (PEP), and the plurality of horizontal repair lines 406a-406c are one-to-one. It is disposed on one side of the plurality of scanning lines 401a-401c. Then, a plurality of mask lines are used to form a plurality of data lines 402a-402c and a plurality of vertical repair lines 407a-407c, and the plurality of vertical repair lines 407a-407c are one-to-one disposed on the plurality of data lines 402a- One side of the 402c. During the process of the boxing process, it is detected whether each of the scan lines 401a-401c and each of the data lines 402a-402c can normally transmit signals. When it is detected that one of the scanning lines and one of the data lines have a broken line G, it needs to be repaired so that the scanning signal and the data signal can be normally transmitted.

Please refer to FIG. 9. FIG. 9 is a partial schematic view showing the fifth embodiment of the flat display panel of FIG. When it is detected that the scan line 401a and the data line 402a to which the switch transistor 403a is connected has a disconnection point G, first select three horizontal repair lines from the plurality of horizontal repair lines and select three of the plurality of vertical repair lines. The vertical repair line, in the present embodiment, the

horizontal repair lines

406a, 406b, and 406c are the first horizontal repair line, the second horizontal repair line, and the third horizontal repair line, respectively. The

vertical repair lines

407a, 407b, and 407c are respectively a first vertical repair line, a second vertical repair line, and a third vertical repair line. For convenience of explanation, the first horizontal repair line 406a, the first vertical repair line 407a, and the second vertical repair line 407b are used for repairing the broken scan line 401a, so the first vertical repair line 407a and the second vertical repair line 407b must be located on both sides of the pixel electrode 400a to which the broken scan line 401a is connected. The second horizontal repair line 406b and the third horizontal repair line 406c and the third vertical repair line 407c are used for repairing the broken data line 402a, so the second horizontal repair line 406b and the third horizontal repair line 406c must be located. Both sides of the pixel electrode 400a to which the data line 402a is connected have been disconnected.

Next, a first cut-off area 4061 and a second cut-off area 4062 are formed on the horizontal repair line 406a by means of a laser. A third cutting zone 4073, a fourth cutting zone 4074, a fifth cutting zone 4075 and a sixth cutting zone 4076 are respectively formed by lasers on the two vertical repairing

lines

407a and 407b on both sides of the pixel electrode 400a. The two

vertical repair lines

407a and 407b and the pixel electrode 400a are located between the first cut-off area 4061 and the second cut-off area 4062. The horizontal repair line 406a and the broken scan line 401a are located between the third cut-off area 4073 and the fourth cut-off area 4074, and are also located between the fifth cut-off area 4075 and the sixth cut-off area 4076.

In addition to this, a seventh cut-off area 4077 and an eighth cut-off area 4078 are formed on the vertical repair line 407c by a laser. A ninth cutting zone 4081, a tenth cutting zone 4082, an eleventh cutting zone 4083, and a twelfth cutting zone 4084 are respectively formed on the two horizontal repairing

lines

406b and 406c by laser. The two

horizontal repair lines

406b and 406c and the pixel electrode 400a are located between the seventh cut region 4077 and the eighth cut region 4078. The vertical repair line 407c and the broken data line 402a are located between the ninth cut-off area 4081 and the tenth cut-off area 4082, and also between the eleventh cut-off area 4083 and the twelfth cut-off area 4084.

Next, the vertical repair line 407a and the broken scan line 401a are electrically connected by a laser at a position 4011 overlapping with the broken line 401a, and the vertical repair line 407a and the horizontal repair line 406a are electrically connected by a laser at a position 4063. The laser electrically connects the vertical repair line 407b to the position 4012 where the broken scan line 401a overlaps, and electrically connects the vertical repair line 407b and the horizontal repair line 406a at the overlapping position 4064 by laser. As described above, the two

vertical repair lines

407a and 407b and the horizontal repair line 406a form an electrical path bypassing the break line G of the scan line 401a, so that the scan signal can pass the electrical position at the position where the scan line 401a is broken. The path continues to pass normally.

In addition, the horizontal repair line 406b and the broken data line 402a are electrically connected by a laser at a position 4091 overlapping with the broken line, and the horizontal repair line 406b and the vertical repair line 407c are electrically connected by a laser at a position 4092. The horizontal repair line 406c is electrically connected to the disconnected data line 402a at a position 4093 which is overlapped, and the horizontal repair line 406c and the vertical repair line 407c are electrically connected by a laser at a position 4094 which overlaps. As described above, the two

horizontal repair lines

406b and 406c and the vertical repair line 407c form an electrical path bypassing the break line G of the data line 402a so that the data signal can pass the electrical position at the position where the data line 402a is broken. The path continues to pass normally to the switching transistor of the next row.

Please refer to FIG. 10. FIG. 10 is a partial schematic view showing a sixth embodiment of the flat display panel of FIG. In another embodiment, when it is detected that the scan line 401a and the data line 402a to which the switch transistor 403a is connected has a disconnection G, the

horizontal repair lines

406c, 406b, and 406a are selected as the first horizontal repair line, respectively. Two horizontal repair lines and a third horizontal repair line.

Vertical repair lines

407c, 407b, and 407a are selected as the first vertical repair line, the second vertical repair line, and the third vertical repair line, respectively. For convenience of explanation, the first horizontal repair line 406c, the first vertical repair line 407c, and the second vertical repair line 407b are used for repairing the broken scan line 401a, so the first vertical repair line 407c and the second vertical repair line 407b must be located on both sides of the pixel electrode 400a to which the broken scan line 401a is connected. The second horizontal repair line 406b and the third horizontal repair line 406a and the third vertical repair line 407a are used for repairing the broken data line 402a, so the second horizontal repair line 406b and the third horizontal repair line 406a must be located. Both sides of the pixel electrode 400a to which the data line 402a is connected have been disconnected.

Next, a first cut-off area 4061 and a second cut-off area 4062 are formed on the horizontal repair line 406c by laser. A third cut-off area 4073, a fourth cut-off area 4074, a fifth cut-off area 4075 and a sixth cut-off area 4076 are respectively formed by the two

vertical repair lines

407c and 407b on both sides of the pixel electrode 400a. The two

vertical repair lines

407c and 407b and the pixel electrode 400a are located between the first cut-off area 4061 and the second cut-off area 4062. The horizontal repair line 406c and the broken scan line 401a are located between the third cut area 4073 and the fourth cut area 4074, and also between the fifth cut area 4075 and the sixth cut area 4076.

In addition to this, the seventh cut-off area 4077 and the eighth cut-off area 4078 are formed on the vertical repair line 407a by laser. A ninth cutting zone 4081, a tenth cutting zone 4082, an eleventh cutting zone 4083, and a twelfth cutting zone 4084 are formed by the laser on the two horizontal repairing

lines

406b and 406a, respectively. The two

horizontal repair lines

406b and 406a and the pixel electrode 400a are located between the seventh cut-off area 4077 and the eighth cut-off area 4078. The vertical repair line 407a and the broken data line 402a are located between the ninth cut-off area 4081 and the tenth cut-off area 4082, and also between the eleventh cut-off area 4083 and the twelfth cut-off area 4084.

Next, the vertical repair line 407c and the broken scan line 401a are electrically connected by a laser at a position 4011 overlapping with the broken line 401a, and the vertical repair line 407c and the horizontal repair line 406c are electrically connected by a laser at a position 4063. The laser electrically connects the vertical repair line 407b to the position 4012 where the broken scan line 401a overlaps, and electrically connects the vertical repair line 407b and the horizontal repair line 406c at the overlapping position 4064 by laser. As described above, the two

vertical repair lines

407c and 407b and the horizontal repair line 406c form an electrical path bypassing the break line G of the scan line 401a, so that the scan signal can pass the electrical position at the position where the scan line 401a is broken. The path continues to pass normally.

In addition, the horizontal repair line 406b is electrically connected to the broken data line 402a at a position 4091 overlapping with the broken line, and the horizontal repair line 406b is electrically connected to the vertical repair line 407a at a position 4092 by using a laser. The horizontal repair line 406a and the broken data line 402a are electrically connected to each other at a position 4093 which is overlapped, and the horizontal repair line 406a and the vertical repair line 407a are electrically connected by a laser at a position 4094 which overlaps. As described above, the two

horizontal repair lines

406b and 406a and the vertical repair line 407a form an electrical path bypassing the break line G of the data line 402a so that the data signal can pass the electrical position at the position where the data line 402a is broken. The path continues to pass normally to the switching transistor of the next row.

Note that, limited to the limitation of the drawing, FIGS. 9 and 10 only select the horizontal repair line and the vertical repair line adjacent to the broken scan line 401a and the data line 402a for illustration. However, in essence, it can be noted from FIG. 9 and FIG. 10 that for any of the broken scan lines and data lines, two vertical repairs respectively located on both sides of the pixel electrode to which the broken scan line is connected can be selected. a line, and any horizontal repair line to form an electrical path to bypass the break line of the scan line; and select two horizontal repair lines respectively located on both sides of the pixel electrode to which the broken data line is connected, and any one The line is repaired vertically to form an electrical path to bypass the break of the data line.

In the above, the present invention has been disclosed in the above preferred embodiments, but the preferred embodiments are not intended to limit the invention, and those skilled in the art can, without departing from the spirit and scope of the invention, Various modifications and refinements are made, and the scope of the invention is defined by the scope of the claims.

Embodiments of the invention

Industrial applicability

Sequence table free content

Claims

A flat display panel comprising:

a plurality of pixel electrodes arranged in a matrix;

a plurality of scanning lines extending parallel to each other and extending in a first direction for transmitting a scanning signal;

a plurality of data lines extending parallel to each other and extending in a second direction, the second direction being perpendicular to the first direction for transmitting a data signal;

a plurality of switching transistors, the plurality of switching transistors are coupled to the pixel electrode, the plurality of scan lines and the plurality of data lines, and each of the switching transistors is configured to receive the coupled scan lines When the scan signal is transmitted, the data signal transmitted by the coupled data line is turned to the corresponding pixel electrode;

a plurality of horizontal repair lines parallel to the plurality of scan lines, the plurality of horizontal repair lines being one-to-one disposed on one side of the plurality of scan lines;

a plurality of vertical repair lines parallel to the plurality of data lines, wherein the plurality of vertical repair lines are one-to-one disposed on one side of the plurality of data lines;

Wherein, when one of the scan lines has been broken, causing a pixel electrode to fail to receive the scan signal, selecting a first horizontal repair line on the plurality of horizontal repair lines, and selecting a first one on the plurality of vertical repair lines a vertical repair line and a second vertical repair line, the first vertical repair line and the second vertical repair line are respectively located on two sides of the pixel electrode,

Forming a first cutting zone and a second cutting zone on the first horizontal repairing line, forming a third cutting zone and a fourth cutting zone in the first vertical repairing line, in the second vertical The repair line forms a fifth cut-off area and a sixth cut-off area, the first and second vertical repair lines being located between the first and second cut-off areas, the first horizontal repair line and the broken line a line scan line is located between the third and fourth cut-off areas, also between the fifth and sixth cut-off areas, and the first and second vertical repair lines are respectively scanned with the broken line The line is electrically connected to a position where the first horizontal repair line overlaps.
The flat display panel according to claim 1, wherein:

Selecting a second level among the plurality of horizontal repair lines when detecting that the data line coupled to the pixel electrode coupled to the broken scan line is disconnected, resulting in failure to transmit the data signal a repair line and a third horizontal repair line, the second horizontal repair line and the third horizontal repair line are respectively located on two sides of the pixel electrode, and a third vertical repair line is selected on the plurality of vertical repair lines Forming a seventh cut-off area and an eighth cut-off area on the third vertical repair line, and the second horizontal repair line on both sides of the pixel electrode forms a ninth cut-off area and a tenth cut-off And the third horizontal repair line forms an eleventh cut-off area and a twelfth cut-off area, and the second and third horizontal repair lines are located between the seventh and eighth cut-off areas, the Two and third vertical repair lines and said broken data line are located between said ninth and tenth cut-off areas, also between said eleventh and twelfth cut-off areas, said second level of repair Lines are respectively associated with the broken data line and the third Position overlapping the straight line connecting the repair, repair and the third horizontal lines, respectively, the data line is disconnected repair line and the third vertical position overlapping connection.
A flat display panel comprising:

a plurality of pixel electrodes arranged in a matrix;

a plurality of scanning lines extending parallel to each other and extending in a first direction for transmitting a scanning signal;

a plurality of data lines extending parallel to each other and extending in a second direction, the second direction being perpendicular to the first direction for transmitting a data signal;

a plurality of switching transistors, the plurality of switching transistors are coupled to the pixel electrode, the plurality of scan lines and the plurality of data lines, and each of the switching transistors is configured to receive the coupled scan lines When the scan signal is transmitted, the data signal transmitted by the coupled data line is turned to the corresponding pixel electrode;

a plurality of horizontal repair lines parallel to the plurality of scan lines, the plurality of horizontal repair lines being one-to-one disposed on one side of the plurality of scan lines;

a plurality of vertical repair lines parallel to the plurality of data lines, wherein the plurality of vertical repair lines are one-to-one disposed on one side of the plurality of data lines;

Wherein, when one of the data lines is disconnected, causing a pixel electrode to fail to receive the data signal, selecting a first horizontal repair line and a second horizontal repair line in the plurality of horizontal repair lines, in the plurality of The vertical repair line selects a first vertical repair line, and the first horizontal repair line and the second horizontal repair line are respectively located on two sides of the pixel electrode.

Forming a first cutting area and a second cutting area on the first vertical repairing line, and the first horizontal repairing line on both sides of the pixel electrode forms a third cutting area and a fourth cutting area. The second horizontal repair line forms a fifth cut-off area and a sixth cut-off area, and the first and second horizontal repair lines and the pixel electrode are located between the first and second cut-off areas. The first vertical repair line and the broken scan line are located between the third and fourth cut-off areas, and also between the fifth and sixth cut-off areas, and the first and second levels The repair lines are electrically connected at positions overlapping the broken data lines and the first vertical repair lines, respectively.
A method for repairing a flat display panel, the planar display panel comprising a plurality of pixel electrodes arranged in a matrix, a plurality of scanning lines parallel to each other and extending in a first direction, and a plurality of parallel lines extending parallel to each other and extending in a second direction Data line, a plurality of switching transistors, a plurality of horizontal repair lines parallel to the plurality of scan lines, and a plurality of vertical repair lines parallel to the plurality of data lines, the second direction being perpendicular to the first In the direction, the plurality of switching transistors are coupled to the pixel electrode, the plurality of scan lines, and the plurality of data lines, and each of the switching transistors is configured to receive the coupled scan line. When the signal is scanned, the data signal transmitted by the coupled data line is turned to the corresponding pixel electrode; the plurality of horizontal repair lines are one-to-one disposed on one side of the plurality of scan lines, A plurality of vertical repair lines are one-to-one disposed on one side of the plurality of data lines, and the method includes:

Detecting whether the plurality of scan lines have a broken line;

When one of the scan lines has been disconnected, causing a pixel electrode to fail to receive the scan signal, selecting a first horizontal repair line on the plurality of horizontal repair lines, and selecting a first vertical repair on the plurality of vertical repair lines a line and a second vertical repair line, the first vertical repair line and the second vertical repair line are respectively located on two sides of the pixel electrode;

Forming a first cutting zone and a second cutting zone on the first horizontal repairing line, forming a third cutting zone and a fourth cutting zone in the first vertical repairing line, in the second vertical repairing The wire forms a fifth cutting zone and a sixth cutting zone, the first and second vertical repairing lines are located between the first and second cutting zones, the first horizontal repairing line and the broken line a scan line between the third and fourth cut-off zones, also between the fifth and sixth cut-off zones;

The first and second vertical repair lines are electrically connected at positions overlapping the broken line scan line and the first horizontal repair line, respectively.
The method of repairing a flat display panel according to claim 4, wherein:

Detecting whether the data line coupled to the pixel electrode coupled to the broken scan line is disconnected;

When it is detected that the data line coupled to the pixel electrode coupled to the broken scan line is disconnected, selecting a second horizontal repair line and a third horizontal repair line on the plurality of horizontal repair lines The second horizontal repair line and the third horizontal repair line are respectively located at two sides of the pixel electrode, and a third vertical repair line is selected on the plurality of vertical repair lines;

Forming a seventh cutting area and an eighth cutting area on the third vertical repairing line, and the second horizontal repairing line on both sides of the pixel electrode forms a ninth cutting area and a tenth cutting area. Forming an eleventh cutting zone and a twelfth cutting zone in the third horizontal repairing line, the second and third horizontal repairing lines are located between the seventh and eighth cutting zones, the second And a third vertical repair line and the broken data line are located between the ninth and tenth cut-off areas, and also between the eleventh and twelfth cut-off areas;

The second horizontal repair line is respectively connected at a position overlapping the broken data line and the third vertical repair line, and the third horizontal repair line is respectively associated with the broken data line The third vertical repair lines are connected at overlapping positions.
A method of repairing a flat display panel according to claim 4, wherein said step of forming a cut-off region is to form said first, second, third, fourth, fifth and sixth cut-off regions by laser light .
The method of repairing a flat display panel according to claim 4, wherein the step of connecting is to connect the broken scan line to the first and second vertical repair lines by laser, and to laser The broken scan line is connected to the first horizontal repair line.
A method for repairing a flat display panel, the planar display panel comprising a plurality of pixel electrodes arranged in a matrix, a plurality of scanning lines parallel to each other and extending in a first direction, and a plurality of parallel lines extending parallel to each other and extending in a second direction Data line, a plurality of switching transistors, a plurality of horizontal repair lines parallel to the plurality of scan lines, and a plurality of vertical repair lines parallel to the plurality of data lines, the second direction being perpendicular to the first In the direction, the plurality of switching transistors are coupled to the pixel electrode, the plurality of scan lines, and the plurality of data lines, and each of the switching transistors is configured to receive the coupled scan line. When the signal is scanned, the data signal transmitted by the coupled data line is turned to the corresponding pixel electrode; the plurality of horizontal repair lines are one-to-one disposed on one side of the plurality of scan lines, A plurality of vertical repair lines are one-to-one disposed on one side of the plurality of data lines, and the method includes:

Detecting whether the plurality of data lines are broken;

When one of the data lines is disconnected, causing a pixel electrode to fail to receive the data signal, selecting a first horizontal repair line and a second horizontal repair line on the plurality of horizontal repair lines, and performing the plurality of vertical repairs Selecting a first vertical repair line, wherein the first horizontal repair line and the second horizontal repair line are respectively located on two sides of the pixel electrode;

Forming a first cutting area and a second cutting area on the first vertical repairing line, and the first repairing line on both sides of the pixel electrode forms a third cutting area and a fourth cutting area. The second horizontal repair line forms a fifth cut-off area and a sixth cut-off area, and the first and second horizontal repair lines and the pixel electrode are located between the first and second cut-off areas, a first vertical repair line and the broken scan line are located between the third and fourth cut-off areas, also between the fifth and sixth cut-off areas;

The first and second horizontal repair lines are electrically connected at positions overlapping the broken data line and the first vertical repair line, respectively.
A method of repairing a flat display panel according to claim 8, wherein said step of forming a cut-off region is to form said first, second, third, fourth, fifth and sixth cut-off regions by laser light .
The method of repairing a flat display panel according to claim 8, wherein the step of connecting is to connect the broken data line to the first and second horizontal repair lines by laser, and to laser The broken data line is connected to the first vertical repair line.