CN112086015A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN112086015A CN112086015A CN202010974946.3A CN202010974946A CN112086015A CN 112086015 A CN112086015 A CN 112086015A CN 202010974946 A CN202010974946 A CN 202010974946A CN 112086015 A CN112086015 A CN 112086015A
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- driving chip
- display panel
- circuit board
- flexible circuit
- display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention provides a display panel and a display device. The display panel further comprises a driving chip, a fan-out wiring and a plurality of flexible circuit board connecting terminals. The flexible circuit board connecting terminals are respectively arranged on two sides of the driving chip. At each side of the driving chip, the flexible circuit board connecting terminals are arranged in at least two rows and two columns.
Description
Technical Field
The invention relates to the field of display devices, in particular to a display panel and a display device.
Background
Along with the technical development of the full-screen display, the occupation ratio of the display screen is continuously improved at present, the lower frame of the display is smaller and smaller, however, the narrowing of the lower frame directly leads to the compression of the space for arranging the driving chip and the wires or other elements, and leads to the limitation of the space for arranging the wires, thereby easily causing the undesirable phenomena of short circuit and the like among a plurality of wires.
As shown in fig. 1, the conventional display panel is provided with a Flexible Printed Circuit (FPC) 30 and a driving chip 10. The flexible circuit board includes a plurality of connection terminals 34, the connection terminals 34 are arranged in a line on both sides of the driving chip 10, and each connection terminal 34 is connected to the driving chip 10 through a signal line 40. Since the distance between the connection terminal 34 far away from the driver chip 10 and the driver chip 10 is long, the length of the signal line 40 between the connection terminal and the driver chip is long, which results in high impedance of the signal line, and increases signal attenuation and power consumption.
Disclosure of Invention
The invention aims to provide a display panel and a display device, and aims to solve the problems that in the prior art, the distance between a connecting terminal and a driving chip is long, so that the length of a signal wire connected between the connecting terminal and the driving chip is long, the impedance of the signal wire is large, and the attenuation and power consumption of signals are increased.
To achieve the above object, the present invention provides a display panel having a display area and a non-display area surrounding the display area.
The display panel further comprises a driving chip, a fan-out wiring and a plurality of flexible circuit board connecting terminals.
The driving chip is arranged in the non-display area and is positioned on one side, far away from the display area, of the fan-out wiring. The fan-out routing is arranged between the display area and the driving chip and connects the driving chip to the display area. The flexible circuit board connecting terminals are respectively arranged on two sides of the driving chip and are positioned on one side, far away from the display area, of the fan-out wiring. Wherein the flexible circuit board connection terminals are arranged in at least two rows and two columns at each side of the driving chip.
Further, the flexible circuit board connection terminals are arranged from one end close to the driving chip to one end far away from the driving chip.
Further, the flexible circuit board connection terminals are arranged in a staggered manner, an array manner or a step-like manner.
Furthermore, each flexible circuit board connecting terminal is connected with the driving chip through a signal line.
Further, the signal line includes a first end, a second end and a transmission line.
The first end is connected with the flexible circuit board connecting terminal. The second end is connected with the driving chip. The transmission line connects the first end and the second end.
Further, the transmission line and the flexible circuit board connection terminal are separated from each other in an orthographic projection on the display panel.
Furthermore, the display panel further comprises a flexible circuit board, and the flexible short-circuit board is arranged on one side, far away from the display area, of the non-display area.
The flexible circuit board comprises a first bonding pad and a second bonding pad, and the first bonding pad and the second bonding pad are correspondingly arranged on two sides of the driving chip. The connection terminal is provided on the first bonding pad and the second bonding pad.
Further, the flexible circuit board connecting terminal is arranged on one side of the first bonding pad and one side of the second bonding pad close to the driving chip.
Further, in the flexible circuit board connection terminals in each row or each column, a gap is provided between adjacent two flexible circuit board connection terminals. All gaps are equal in width.
The invention also provides a display device which comprises the display panel.
The invention has the advantages that:
according to the display panel, the connecting terminals are arranged on two sides of the driving chip in multiple rows and multiple columns, and the distance between the connecting terminals and the driving chip is reduced, so that the length of a signal line is reduced, the impedance of the signal line is further reduced, the operation energy consumption of the display panel is also reduced, and the performance of the display device is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a display panel in the prior art;
fig. 2 is a schematic structural diagram of a display panel in embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a signal line in embodiments 1 to 3 of the present invention;
fig. 4 is a schematic structural diagram of a display panel in embodiment 2 of the present invention;
fig. 5 is a schematic structural diagram of a display panel in embodiment 3 of the present invention.
The components in the figures are represented as follows:
a display panel 100;
a display area 101; a non-display area 102;
a driver chip 10; a fan-out trace 20;
a flexible circuit board 30; a main body 31;
the first bonding pads 32; the second bonding pads 33;
a connection terminal 34; a signal line 40;
a first end 41; a second end 42;
a transmission line 43.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, which are included to demonstrate that the invention can be practiced, and to provide those skilled in the art with a complete description of the invention so that the technical content thereof will be more clear and readily understood. The present invention may be embodied in many different forms of embodiments and should not be construed as limited to the embodiments set forth herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
Furthermore, the following description of the various embodiments of the invention refers to the accompanying drawings that illustrate specific embodiments of the invention, by which the invention may be practiced. Directional phrases used in this disclosure, such as, for example, "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "side," and the like, refer only to the orientation of the appended drawings and are, therefore, used herein for better and clearer illustration and understanding of the invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
When certain components are described as being "on" another component, the components can be directly on the other component; there may also be an intermediate member disposed on the intermediate member and the intermediate member disposed on the other member. When an element is referred to as being "mounted to" or "connected to" another element, they may be directly "mounted to" or "connected to" the other element or indirectly "mounted to" or "connected to" the other element through an intermediate element.
Example 1
The embodiment of the invention provides a display device, which comprises a display panel 100, wherein the display panel 100 is used for providing a display picture for the display device. The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a notebook computer and the like.
As shown in fig. 2, the display panel 100 has a display area 101 surrounding a non-display area 102 of the display area 101. Within the display area 101, the display panel 100 has a light emitting display device for emitting light to present a display screen. In the non-display area 102, the display panel 100 has fan-out traces 20, a driving chip 10, and a flexible circuit board 30.
The driving chip 10 is disposed in the non-display region 102 and located at one side of the display panel 100. The fan-out routing 20 is disposed between the driving chip 10 and the display area 101, is connected to the driving chip 10 and the display area 101, and transmits a driving signal of the driving chip 10 to the display area 101.
The flexible circuit board 30 is disposed on a side of the non-display area 102 away from the display area 101, and has a main body 31, a first bonding pad 32, a second bonding pad 33, and a plurality of connection terminals 34. The first bonding pads 32 and the second bonding pads 33 are respectively located on two sides of the driving chip 10, and are also located on a side of the fan-out traces 20 away from the display area 101 together with the driving chip 10. The main body 31 connects the first bonding pad 32 and the second bonding pad 33 and is located on a side of the first bonding pad 32 and the second bonding pad 33 away from the fan-out trace 20. The connection terminal 34 is disposed on each of the first bonding pad 32 and the second bonding pad 33, and the connection terminal 34 is disposed on a side of the first bonding pad 32 and the second bonding pad 33 close to the driving chip 10.
The display panel 100 has a plurality of signal lines 40, and each connection terminal 34 is connected to the driving chip 10 through a signal line 40. As shown in fig. 3, the signal line 40 includes a first end 41, a second end 42 and a transmission line 43. The first terminal 41 is connected to the connection terminal 34, the second terminal 42 is connected to the driving chip 10, the transmission line 43 connects the first terminal 41 and the second terminal 42, and an orthographic projection of the transmission line 43 on the display panel 100 does not coincide with an orthographic projection of the connection terminal 34 on the display panel 100. The signal line 40 is configured to transmit a display signal in the flexible circuit board 30 to the driver chip 10, the driver chip 10 generates a driving signal according to the display signal, and the display area 101 of the display panel 100 controls light emission according to the driving signal to refresh a display image.
As shown in fig. 2, the connection terminals 34 are arranged in an array on the first bonding pads 32 and the second bonding pads 33 from one end close to the driving chip 10 to one end far from the driving chip 10. In each row and each column of the connection terminals 34, a gap is formed between two adjacent connection terminals, and the widths of all the gaps are equal, that is, the distance between each connection terminal 34 and the adjacent connection terminal 34 is equal. The transmission line 43 of the signal line 40 is located in the gap.
In the embodiment of the present invention, the connection terminals 34 of the flexible circuit board 30 are shown in an array of two rows and three columns, but in other embodiments of the present invention, the connection terminals 34 may be arranged in two or more rows or two or more columns.
According to the display panel 100 and the display device provided by the embodiment of the invention, the connecting terminals 34 are arranged on two sides of the driving chip 10 in multiple rows and multiple columns, so that the distance between the connecting terminal 34 at the far end and the driving chip 10 is reduced compared with the arrangement mode in the prior art, further, the signal wire 40 connecting the driving chip 10 and the connecting terminal 34 is shortened, the impedance of the signal wire 40 is reduced, and the operation energy consumption and production materials of the display panel 100 are reduced.
Example 2
The embodiment of the invention provides a display device, which comprises a display panel 100, wherein the display panel 100 is used for providing a display picture for the display device. The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a notebook computer and the like.
As shown in fig. 4, the display panel 100 has a display area 101 surrounding a non-display area 102 of the display area 101. Within the display area 101, the display panel 100 has a light emitting display device for emitting light to present a display screen. In the non-display area 102, the display panel 100 has fan-out traces 20, a driving chip 10, and a flexible circuit board 30.
The driving chip 10 is disposed in the non-display region 102 and located at one side of the display panel 100. The fan-out routing 20 is disposed between the driving chip 10 and the display area 101, is connected to the driving chip 10 and the display area 101, and transmits a driving signal of the driving chip 10 to the display area 101.
The flexible circuit board 30 is disposed on a side of the non-display area 102 away from the display area 101, and has a main body 31, a first bonding pad 32, a second bonding pad 33, and a plurality of connection terminals 34. The first bonding pads 32 and the second bonding pads 33 are respectively located on two sides of the driving chip 10, and are also located on a side of the fan-out traces 20 away from the display area 101 together with the driving chip 10. The main body 31 connects the first bonding pad 32 and the second bonding pad 33 and is located on a side of the first bonding pad 32 and the second bonding pad 33 away from the fan-out trace 20. The connection terminal 34 is disposed on each of the first bonding pad 32 and the second bonding pad 33, and the connection terminal 34 is disposed on a side of the first bonding pad 32 and the second bonding pad 33 close to the driving chip 10.
The display panel 100 has a plurality of signal lines 40, and each connection terminal 34 is connected to the driving chip 10 through a signal line 40. As shown in fig. 3, the signal line 40 includes a first end 41, a second end 42 and a transmission line 43. The first terminal 41 is connected to the connection terminal 34, the second terminal 42 is connected to the driving chip 10, the transmission line 43 connects the first terminal 41 and the second terminal 42, and an orthographic projection of the transmission line 43 on the display panel 100 does not coincide with an orthographic projection of the connection terminal 34 on the display panel 100. The signal line 40 is configured to transmit a display signal in the flexible circuit board 30 to the driver chip 10, the driver chip 10 generates a driving signal according to the display signal, and the display area 101 of the display panel 100 controls light emission according to the driving signal to refresh a display image.
As shown in fig. 4, the connection terminals 34 are arranged on the first bonding pads 32 and the second bonding pads 33 in a staggered manner from one end close to the driving chip 10 to one end far from the driving chip 10. In each row and each column of the connection terminals 34, a gap is formed between two adjacent connection terminals, and the widths of all the gaps are equal, that is, the distance between each connection terminal 34 and the adjacent connection terminal 34 is equal. The transmission line 43 of the signal line 40 is located in the gap.
In the embodiment of the present invention, the connection terminals 34 of the flexible circuit board 30 are only shown in a staggered arrangement of three rows and three columns, but in other embodiments of the present invention, the connection terminals 34 may be arranged in more than two rows or more than two columns.
According to the display panel 100 and the display device provided by the embodiment of the invention, the connecting terminals 34 are arranged on two sides of the driving chip 10 in multiple rows and multiple columns, so that the distance between the connecting terminal 34 at the far end and the driving chip 10 is reduced compared with the arrangement mode in the prior art, further, the signal wire 40 connecting the driving chip 10 and the connecting terminal 34 is shortened, the impedance of the signal wire 40 is reduced, and the operation energy consumption and production materials of the display panel 100 are reduced.
Example 3
The embodiment of the invention provides a display device, which comprises a display panel 100, wherein the display panel 100 is used for providing a display picture for the display device. The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a notebook computer and the like.
As shown in fig. 5, the display panel 100 has a display area 101 surrounding a non-display area 102 of the display area 101. Within the display area 101, the display panel 100 has a light emitting display device for emitting light to present a display screen. In the non-display area 102, the display panel 100 has fan-out traces 20, a driving chip 10, and a flexible circuit board 30.
The driving chip 10 is disposed in the non-display region 102 and located at one side of the display panel 100. The fan-out routing 20 is disposed between the driving chip 10 and the display area 101, is connected to the driving chip 10 and the display area 101, and transmits a driving signal of the driving chip 10 to the display area 101.
The flexible circuit board 30 is disposed on a side of the non-display area 102 away from the display area 101, and has a main body 31, a first bonding pad 32, a second bonding pad 33, and a plurality of connection terminals 34. The first bonding pads 32 and the second bonding pads 33 are respectively located on two sides of the driving chip 10, and are also located on a side of the fan-out traces 20 away from the display area 101 together with the driving chip 10. The main body 31 connects the first bonding pad 32 and the second bonding pad 33 and is located on a side of the first bonding pad 32 and the second bonding pad 33 away from the fan-out trace 20. The connection terminal 34 is disposed on each of the first bonding pad 32 and the second bonding pad 33, and the connection terminal 34 is disposed on a side of the first bonding pad 32 and the second bonding pad 33 close to the driving chip 10.
The display panel 100 has a plurality of signal lines 40, and each connection terminal 34 is connected to the driving chip 10 through a signal line 40. As shown in fig. 3, the signal line 40 includes a first end 41, a second end 42 and a transmission line 43. The first terminal 41 is connected to the connection terminal 34, the second terminal 42 is connected to the driving chip 10, the transmission line 43 connects the first terminal 41 and the second terminal 42, and an orthographic projection of the transmission line 43 on the display panel 100 does not coincide with an orthographic projection of the connection terminal 34 on the display panel 100. The signal line 40 is configured to transmit a display signal in the flexible circuit board 30 to the driver chip 10, the driver chip 10 generates a driving signal according to the display signal, and the display area 101 of the display panel 100 controls light emission according to the driving signal to refresh a display image.
As shown in fig. 5, the connection terminals 34 are arranged on the first bonding pads 32 and the second bonding pads 33 in a stepwise manner from an end close to the driving chip 10 to an end far from the driving chip 10. In each row of the connecting terminals 34, a gap is formed between two adjacent connecting terminals, and the widths of all the gaps are equal, that is, the distance between each connecting terminal 34 in one column and the adjacent connecting terminal 34 in the same column is equal. The transmission line 43 of the signal line 40 is located in the gap.
In the embodiment of the present invention, the connection terminals 34 of the flexible circuit board 30 are shown in a stepped arrangement of three rows and two columns, but in other embodiments of the present invention, the connection terminals 34 may be arranged in two or more rows or two or more columns.
According to the display panel 100 and the display device provided by the embodiment of the invention, the connecting terminals 34 are arranged on two sides of the driving chip 10 in multiple rows and multiple columns, so that the distance between the connecting terminal 34 at the far end and the driving chip 10 is reduced compared with the arrangement mode in the prior art, further, the signal wire 40 connecting the driving chip 10 and the connecting terminal 34 is shortened, the impedance of the signal wire 40 is reduced, and the operation energy consumption and production materials of the display panel 100 are reduced.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (10)
1. A display panel having a display area and a non-display area surrounding the display area; the display panel further includes:
the driving chip is arranged in the non-display area;
the fan-out routing is used for connecting the driving chip to the display area; and
the flexible circuit board connecting terminals are respectively arranged on two sides of the driving chip and are positioned on one side, away from the display area, of the fan-out wiring; wherein the flexible circuit board connection terminals are arranged in at least two rows and two columns at each side of the driving chip.
2. The display panel according to claim 1, wherein the flexible circuit board connection terminals are arranged from an end close to the driving chip to an end far from the driving chip.
3. The display panel of claim 1, wherein the flexible circuit board connection terminals are one of staggered, arrayed, or stepped.
4. The display panel according to claim 1, wherein each flexible circuit board connection terminal is connected to the driving chip through a signal line.
5. The display panel according to claim 4, wherein the signal line includes:
a first end connected to the flexible circuit board connection terminal;
the second end is connected with the driving chip;
a transmission line connecting the first end and the second end.
6. The display panel according to claim 5, wherein an orthographic projection of the transmission line and the flexible circuit board connection terminal on the display panel is separated.
7. The display panel of claim 1, further comprising:
the flexible circuit board is arranged on one side, far away from the display area, of the non-display area:
the flexible circuit board comprises:
the first bonding pad and the second bonding pad are correspondingly arranged on two sides of the driving chip;
the connection terminal is provided on the first bonding pad and the second bonding pad.
8. The display panel according to claim 7, wherein the flexible circuit board connection terminal is provided on a side of the first bonding pad and the second bonding pad adjacent to the driving chip.
9. The display panel according to claim 1, wherein in the flexible circuit board connection terminals in each row or each column, a gap is provided between adjacent two flexible circuit board connection terminals. The gaps are of equal width.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010974946.3A CN112086015A (en) | 2020-09-16 | 2020-09-16 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010974946.3A CN112086015A (en) | 2020-09-16 | 2020-09-16 | Display panel and display device |
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| Publication Number | Publication Date |
|---|---|
| CN112086015A true CN112086015A (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010974946.3A Pending CN112086015A (en) | 2020-09-16 | 2020-09-16 | Display panel and display device |
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| CN (1) | CN112086015A (en) |
Cited By (3)
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| CN113487971A (en) * | 2021-07-22 | 2021-10-08 | 武汉华星光电技术有限公司 | Display panel and display device |
| CN114220345A (en) * | 2021-12-14 | 2022-03-22 | 上海新相微电子股份有限公司 | Portable display |
| WO2024021073A1 (en) * | 2022-07-25 | 2024-02-01 | 武汉华星光电技术有限公司 | Display panel and display device |
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Application publication date: 20201215 |