CN107146804A - Organic LED pixel structure and organic LED display device - Google Patents
Organic LED pixel structure and organic LED display device Download PDFInfo
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- CN107146804A CN107146804A CN201710213931.3A CN201710213931A CN107146804A CN 107146804 A CN107146804 A CN 107146804A CN 201710213931 A CN201710213931 A CN 201710213931A CN 107146804 A CN107146804 A CN 107146804A
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- 230000008020 evaporation Effects 0.000 abstract description 20
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- 239000000203 mixture Substances 0.000 abstract description 18
- 238000007740 vapor deposition Methods 0.000 description 26
- 239000003086 colorant Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000009467 reduction Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 241001062009 Indigofera Species 0.000 description 1
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- 230000005684 electric field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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- 239000011368 organic material Substances 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/352—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
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Abstract
The present invention discloses a kind of organic LED pixel structure and organic LED display device, to reduce the colour mixture risk of evaporation organic luminous layer.Dot structure includes the multiple pixel cells being arranged in array, pixel cell includes three different sub-pixels of color, respectively the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, each column pixel cell include two row sub-pixels, respectively the first sub-pixel column and the second sub-pixel column；With in one-row pixels unit, the first sub-pixel, the second sub-pixel and the 3rd sub-pixel of any two adjacent pixel units are axisymmetricly arranged on the line of demarcation of two adjacent pixel units；Any two adjacent pixel units in same row pixel cell, the first sub-pixel and the second sub-pixel of one of pixel cell are located in the first sub-pixel column with the 3rd sub-pixel of one other pixel unit, and the 3rd sub-pixel of one of pixel cell is located in the second sub-pixel column with the first sub-pixel of one other pixel unit and the second sub-pixel.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of Organic Light Emitting Diode (Organic Light-
Emitting Diode, hereinafter referred to as Organic Light Emitting Diode, OLED) dot structure and OLED display.
Background technology
OLED display is because with thin, light, wide viewing angle, actively luminous, glow color continuously adjustabe, cost are low, ring
Answer that speed is fast, energy consumption is small, driving voltage is low, operating temperature range is wide, simple production process, luminous efficiency it is high and can Flexible Displays
The advantages of, it has been listed in the Display Technique of future generation of great development prospect.The dot structure of OLED display is included according to one
Determine multiple sub-pixels of arrangement mode arrangement, wherein, each sub-pixel include anode layer, cathode layer and positioned at anode layer and
Organic luminous layer between cathode layer, the material of the organic luminous layer corresponding to different colours sub-pixel is different.
With the continuous improvement that people are pursued display quality, people to the resolution requirement of display device also increasingly
Height, it means that the dot structure of display device needs to arrange more sub-pixels in the unit area of viewing area, son
The size of pixel more does smaller, and the spacing between adjacent organic luminous layer is less and less.
As shown in figure 1, in the dot structure of traditional OLED display, every a line sub-pixel, R (red) sub-pixel 101, G
(green) sub-pixel 102, the cycle arrangement of B (indigo plant) sub-pixel 103；The color of each row sub-pixel is identical；Adjacent R sub-pixels 101,
G sub-pixel 102, the mixed light of B sub-pixels 103, macroscopically constitute a pixel cell 100.The technological deficiency that the prior art is present
It is：
OLED display is when making, and the organic luminous layer of different colours needs to make shape by evaporation process respectively
Into because the spacing b ' between different colours organic luminous layer is smaller, so as to cause organic luminous layer to there is colour mixture in evaporation
Risk, i.e.,：Deposition material is set to enter in other subpixel areas that substrate is deposited beyond region；
In view of the structural strength of Vapor deposition mask plate, the spacing in Vapor deposition mask plate between adjacent apertures need to be not less than setting
Distance values, this causes in Vapor deposition mask plate designed opening size smaller, accordingly, the sub-pixel of OLED display
Aperture opening ratio is relatively low, and the transmitance of OLED display is relatively low.In addition, the opening size of Vapor deposition mask plate is smaller, to deposition mask
The making required precision of plate is higher, and cost of manufacture is also higher；
When the closely picture of viewing OLED display, due to the sub- picture of same a line or same row positioned at picture edge
The color of element is identical, causes to visually see color side phenomenon, so as to have influence on display effect.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of OLED pixel structure and OLED display, to reduce deposition mask
The manufacture difficulty and cost of plate, the colour mixture risk of reduction evaporation organic luminous layer, improve the sub-pixel opening of OLED display
Rate, improves the color side phenomenon at picture edge.
The OLED pixel structure that the embodiment of the present invention is provided, including the multiple pixel cells being arranged in array, each picture
Plain unit includes three different sub-pixels of color, respectively the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, each column picture
Plain unit includes two row sub-pixels, respectively the first sub-pixel column and the second sub-pixel column, wherein：
With in one-row pixels unit, the first sub-pixel, the second sub-pixel and the 3rd sub- picture of any two adjacent pixel units
Element is axisymmetricly arranged on the line of demarcation of described two adjacent pixel units；
Any two adjacent pixel units in same row pixel cell, the first sub-pixel of one of pixel cell and
3rd sub-pixel of two sub-pixels and one other pixel unit is located in first sub-pixel column, one of pixel list
3rd sub-pixel of member is located at second sub-pixel with the first sub-pixel of the one other pixel unit and the second sub-pixel
In row.
Using OLED pixel structure of the embodiment of the present invention, have the advantages that：
With in one-row pixels unit, the adjacent subpixels of same color mutually close can be arranged, so that different colours
Adjacent subpixels can design larger spacing, therefore, and the first sub-pixel, the second sub-pixel and the 3rd son are formed in evaporation respectively
During the organic luminous layer of pixel, evaporation colour mixture risk is relatively low；
Increase can be designed by reducing the spacing in same one-row pixels unit between the adjacent subpixels of same color
The aperture opening ratio of sub-pixel, so as to improve the transmitance of OLED display；The aperture opening ratio increase of sub-pixel advantageously reduces evaporation
The manufacture difficulty and cost of mask plate；
Sub-pixel column positioned at edge is no longer solid color, so as to improve the coloured silk at OLED display picture edge
Side phenomenon.
It is preferred that, in any row pixel cell, color is identical and along row to the spacing between two adjacent sub-pixels, small
In color difference and along capable to the spacing between two adjacent sub-pixels.
Preferably, in any row pixel cell, color is identical and along row to the spacing a between two adjacent sub-pixels,
It is different from color and along row between two adjacent sub-pixels spacing b meet：1/10≤a/b<1.
More preferably, in any row pixel cell, color is identical and along row to the spacing a between two adjacent sub-pixels,
It is different from color and along row between two adjacent sub-pixels spacing b meet：1/3≤a/b<1.
It is preferred that, any two adjacent pixel units in same row pixel cell, the first sub-pixel of a upper pixel cell
It is located at the 3rd sub-pixel of the second sub-pixel and next pixel cell in first sub-pixel column and along the described first sub- picture
The row bearing of trend of element row is arranged in order, the 3rd sub-pixel of a upper pixel cell and the first of next pixel cell
Sub-pixel and the second sub-pixel be located in second sub-pixel column and along second sub-pixel column row bearing of trend successively
Arrangement.
Using the design, it can make in same row pixel cell, the spacing between two neighboring first sub-pixel, with
Spacing between two neighboring second sub-pixel is suitable, so as to can macroscopically reduce the particle of OLED display picture
Sense.
Optionally, the shape of first sub-pixel, the second sub-pixel and the 3rd sub-pixel is respectively rectangle；Described 3rd
The long edge of sub-pixel is arranged to setting, and broadside edge is gone to setting.
It is preferred that, the row of the second sub-pixel of a upper pixel cell is located at a upper pixel cell to center line
Between first sub-pixel of the 3rd sub-pixel and next pixel cell；The row of first sub-pixel of next pixel cell
It is located to center line between the second sub-pixel of a upper pixel cell and the 3rd sub-pixel of next pixel cell.
Using the design, the spacing arranged between upward different colours adjacent subpixels can be increased, so as to further reduce
Colour mixture risk is deposited.
It is preferred that, the long edge row of first sub-pixel and the second sub-pixel is to setting, and broadside is described along arranging to setting
The length-width ratio of first sub-pixel and the second sub-pixel is more than 1.1；The length-width ratio of 3rd sub-pixel is less than 3.
Using the design, the spacing arranged between upward different colours adjacent subpixels can be increased, so as to further reduce
Colour mixture risk is deposited.
It is preferred that, each sub-pixel includes anode layer, cathode layer and the organic light emission between anode layer and cathode layer
Layer；In any row pixel cell, color is identical and anode layer along from row to two adjacent sub-pixels separately, and organic light emission
Layer is connected as a single entity structure.
Using the design, color is identical and passes through Vapor deposition mask plate along row to the organic luminous layer of two adjacent sub-pixels
On same opening be deposited to be formed, compared to it is each correspondence Vapor deposition mask plate on one opening scheme, the opening of Vapor deposition mask plate
Size is larger, advantageously reduces the manufacture difficulty and cost of Vapor deposition mask plate.
Preferably, the area of first sub-pixel and the second sub-pixel is respectively less than the area of the 3rd sub-pixel.This
Sample, dot structure can arrange more pixel cells in the unit area of viewing area, so as to improve OLED display
Resolution ratio.
Optionally, first sub-pixel, the second sub-pixel and the 3rd sub-pixel are respectively red sub-pixel, green sub- picture
Element and blue subpixels.Compared to red sub-pixel and green sub-pixels, the life-span of blue subpixels is relatively low, can using the design
To reduce the current density of blue subpixels, reduce its decline rate, so that blue subpixels and red sub-pixel and green
The life-span of sub-pixel matches.
Optionally, the area of the red sub-pixel is not more than the area of the green sub-pixels.
The embodiment of the present invention also provides a kind of OLED display, including the OLED pixel described in foregoing any technical scheme
Structure.
The sub-pixel aperture opening ratio of the OLED display is higher, and the color side phenomenon at picture edge is improved, and should
The colour mixture risk of OLED display evaporation organic luminous layer when making is relatively low, makes the making of used Vapor deposition mask plate
Difficulty and cost are relatively low.
Brief description of the drawings
Fig. 1 is the dot structure top view of traditional OLED display；
Fig. 2 is one embodiment of the invention dot structure top view；
Fig. 3 is the diagrammatic cross-section of one embodiment of the invention sub-pixel；
Fig. 4 a are by being deposited the Vapor deposition mask plate top view that the first sub-pixel is used in one embodiment of the invention；
Fig. 4 b are by being deposited the Vapor deposition mask plate top view that the second sub-pixel is used in one embodiment of the invention；
Fig. 4 c are by being deposited the Vapor deposition mask plate top view that the 3rd sub-pixel is used in one embodiment of the invention；
Fig. 5 a are another embodiment of the present invention dot structure birds-eye perspective；
Fig. 5 b are diagrammatic cross-section at Fig. 5 a A-A；
Fig. 6 is further embodiment of this invention dot structure top view.
Reference：
Prior art part：
100- pixel cells；101-R sub-pixels；102-G sub-pixels；103-B sub-pixels
Part of the embodiment of the present invention：
1- pixel cells；11st, the sub-pixels of 11b- first；12nd, the sub-pixels of 12a- second；
13rd, the sub-pixel of 13a, 13b- the 3rd；The sub-pixel columns of 10- first；The sub-pixel columns of 20- second；
01- anode layers；02- organic luminous layers；03- cathode layers；04- pixel defining layers；2- is open；
L- lines of demarcation；S1, S2- row are to center line.
Embodiment
To reduce the manufacture difficulty and cost of Vapor deposition mask plate, the colour mixture risk of reduction evaporation organic luminous layer is improved
The sub-pixel aperture opening ratio of OLED display, improves the color side phenomenon at picture edge, the embodiments of the invention provide a kind of OLED
Dot structure and OLED display.It is right by the following examples to make the object, technical solutions and advantages of the present invention clearer
The present invention is described in further detail.
As shown in Fig. 2 OLED pixel structure provided in an embodiment of the present invention, including the multiple pixel cells being arranged in array
1, each pixel cell 1 includes three different sub-pixels of color, respectively the first sub-pixel 11, the second sub-pixel 12 and the 3rd
Sub-pixel 13, each column pixel cell 1 includes two row sub-pixels, respectively the first sub-pixel column 10 and the second sub-pixel column 20 (the
The position of one sub-pixel column 10 and the second sub-pixel column 20 is also interchangeable), wherein：
With in one-row pixels unit 1, the first sub-pixel 11 of any two adjacent pixel units, the second sub-pixel 12 and the 3rd
Sub-pixel 13 is axisymmetricly arranged on the line of demarcation L of two adjacent pixel units；I.e.：In any two adjacent pixel units,
Two the first sub-pixels 11 are axisymmetricly arranged on the line of demarcation L of two adjacent pixel units, two the second sub-pixels 12
Line of demarcation L on two adjacent pixel units axisymmetricly arranges, and two the 3rd sub-pixels 13 are on two adjacent pictures
The line of demarcation L of plain unit axisymmetricly arranges；
Any two adjacent pixel units in same row pixel cell 1, the first sub-pixel 11 of one of pixel cell
It is located at the 3rd sub-pixel 13 of the second sub-pixel 12 and one other pixel unit in the first sub-pixel column 10, one of pixel
The first sub-pixel 11 and the second sub-pixel 12 of the 3rd sub-pixel 13 and one other pixel unit of unit are located at the second sub-pixel
In row 20.
In embodiments of the present invention, each pixel cell includes three different sub-pixels of color, and these three sub-pixels enter
Row mixed light, so as to show certain color subjective.OLED display is when being shown, according to each pixel cell need
The colouring information to be shown is calculated and determined the data-signal of each sub-pixel.The line of demarcation of two adjacent pixel units then refers to
The boundary line that the two adjacent pixel units are divided.
As shown in figure 3, each sub-pixel include anode layer 01, cathode layer 03 and positioned at anode layer 01 and cathode layer 03 it
Between organic luminous layer 02.Anode layer 01, cathode layer 03 and organic luminous layer 02 constitute an OLED luminescent device, its luminous original
Manage and be：Between anode layer 01 and cathode layer 03 under the driving of electric field, as the electronics of carrier and hole respectively from cathode layer
Organic luminous layer 02 is moved to anode layer, and convergence of meeting in organic luminous layer 02 forms exciton, exciton de excitation, which is lived, releases
Energy, the energy of release excites the light emitting molecule of organic luminous layer 02, and the light emitting molecule after exciting is sent out by radiative relaxation
Go out visible ray.Generally, the anode layer 01 of each sub-pixel is spaced, the cathode layer 03 or several sub-pixels of each sub-pixel
Cathode layer 03 structure is connected as one to form equipotential.It is fixed by pixel between adjacent subpixels in OLED pixel structure
Adopted layer is defined, and each sub-pixel distinguishes each open region of respective pixel definition layer, and the anode layer of each sub-pixel passes through picture
Plain definition layer interval insulated from each other.
Using OLED pixel structure of the embodiment of the present invention, have the advantages that：
First, with one-row pixels unit, the adjacent subpixels of same color can be mutually close to arrangement, so that different colours
Adjacent subpixels can design larger spacing, therefore, respectively evaporation formed the first sub-pixel, the second sub-pixel and the 3rd
During the organic luminous layer of sub-pixel, evaporation colour mixture risk is relatively low；
2nd, increasing can be designed by reducing the spacing in same one-row pixels unit between the adjacent subpixels of same color
The aperture opening ratio of big sub-pixel, so as to improve the transmitance of OLED display；The aperture opening ratio increase of sub-pixel advantageously reduces steaming
Plate the manufacture difficulty and cost of mask plate；
3rd, the sub-pixel column positioned at edge is no longer solid color, so as to improve OLED display picture edge
Color side phenomenon.
In embodiments of the present invention, the color of three sub-pixels of pixel cell 1 is different, but specific color is not limited.For example,
In the alternative embodiment shown in Fig. 2, the first sub-pixel 11, the second sub-pixel 12 and the 3rd sub-pixel 13 are respectively red sub- picture
Element, green sub-pixels and blue subpixels.
In embodiments of the present invention, the concrete shape of three sub-pixels of pixel cell 1 is not limited, can for rectangle, it is square,
Hexagon etc..In the alternative embodiment shown in Fig. 2, the first sub-pixel 11, the second sub-pixel 12 and the 3rd sub-pixel 13
Shape is respectively rectangle.Wherein, the long edge of the 3rd sub-pixel 13 is arranged to setting, and broadside is along row to setting, using the setting side
Formula, can make the arrangement of sub-pixel more compact in the case where ensureing different colours sub-pixel spacing, so as to be conducive to improving
The resolution ratio of OLED display.
In an alternate embodiment of the present invention where, any two adjacent pixel units in same row pixel cell, upper one
The first sub-pixel and the second sub-pixel of pixel cell are located in the first sub-pixel column with the 3rd sub-pixel of next pixel cell
And be arranged in order along the row bearing of trend of the first sub-pixel column, the 3rd sub-pixel and the next pixel cell of a upper pixel cell
Second sub-pixel and the first sub-pixel are located in the second sub-pixel column and are arranged in order along the row bearing of trend of the second sub-pixel column.
As shown in Fig. 2 in a preferred embodiment of the invention, any two adjacent pixel lists in same row pixel cell 1
3rd sub-pixel 13 of member, the first sub-pixel 11 of a upper pixel cell and the second sub-pixel 12 and next pixel cell is located at the
It is arranged in order in one sub-pixel column 10 and along the row bearing of trend of the first sub-pixel column 10, the 3rd sub-pixel of a upper pixel cell
13 are located in the second sub-pixel column 20 with the first sub-pixel 11 of next pixel cell and the second sub-pixel 12 and along the second sub- picture
The row bearing of trend of plain row 20 is arranged in order.
Embodiment shown in Fig. 2, can make in same row pixel cell, the spacing between two neighboring first sub-pixel,
Spacing between two neighboring second sub-pixel is suitable, so as to can macroscopically reduce the particle of OLED display picture
In sense, same sub-pixel column, the first sub-pixel, the second sub-pixel and the arrangement of the 3rd subpixel period improve color side phenomenon, lifting
The quality of display.
Because the first sub-pixel 11, the second sub-pixel 12 are different with the color of the 3rd sub-pixel 13, therefore, the first sub-pixel
11st, the organic luminous layer of the second sub-pixel 12 and the 3rd sub-pixel 13 needs to pass through evaporation process shape on substrate respectively
Into.It is respectively the organic luminous layer that the first sub-pixel, the second sub-pixel and the 3rd sub-pixel is deposited shown in Fig. 4 a, Fig. 4 b and Fig. 4 c
The Vapor deposition mask plate used, wherein, institute in the Vapor deposition mask plate region 200 such as figure relative with the pixel cell being arranged in array
Show.Exemplified by being deposited and form the organic luminous layer of the 3rd sub-pixel, as illustrated in fig. 4 c, in Vapor deposition mask plate, be open 2 counterpart substrates
The region of upper organic luminous layer to be deposited；Dotted line frame represents the Vapor deposition mask plate area relative with the second sub-pixel with the first sub-pixel
Domain.
Fig. 5 a are another embodiment of the present invention dot structure birds-eye perspective, and Fig. 5 b are diagrammatic cross-section at Fig. 5 a A-A.
As shown in figure 5 a and 5b, in any row pixel cell 1, color is identical and along row to the organic light emission of two adjacent sub-pixels
Layer 02 is connected as a single entity structure；As shown in Figure 5 b, the anode layer 01 of two neighboring sub-pixel by pixel defining layer 04 separately.Adopt
The design is used, color is identical and passes through along row to the organic luminous layer of two adjacent sub-pixels same in Vapor deposition mask plate
Opening evaporation is formed, compared to the scheme of an opening in each correspondence Vapor deposition mask plate, and the opening size of Vapor deposition mask plate is larger, because
This, advantageously reduces the manufacture difficulty and cost of Vapor deposition mask plate, improves the making precision of Vapor deposition mask plate.
When dot structure uses the design of above-described embodiment, as shown in Fig. 4 a, Fig. 4 b and Fig. 4 c, opening in Vapor deposition mask plate
Mouth 2 is staggered, so as to increase the spacing between laterally adjacent, vertically-adjacent and oblique adjacent apertures, is so conducive to increasing
The structural strength of big Vapor deposition mask plate.
It refer to shown in Fig. 2, in this embodiment of the invention, in any row pixel cell 1, color is identical and along capable to adjacent
Two sub-pixels between spacing a, it is different less than color and along row to the spacing b between two adjacent sub-pixels.Group
The timing of elemental area one, a+b is usually certain value, for example：In one embodiment, a+b=40 μm, a=10~19 μm, b=21
~30 μm.So design, be because colour mixture risk is not present between same color sub-pixel, especially in two homochromy adjacent sons
In the case that pixel shares a Vapor deposition mask plate opening, less there is colour mixture risk, and in order to prevent different colours sub-pixel
Between occur evaporation colour mixture, the interval between different colours sub-pixel should be not less than minimum pitch value, otherwise may occur colour mixture
Risk.This minimum pitch value is related to the technological ability in actual production, can specifically determine minimum pitch value according to technological ability
Numerical value, the application is not construed as limiting to this.
Still exemplified by being deposited and form the organic luminous layer of the 3rd sub-pixel, during evaporation, above-mentioned line space design can be with
The steam molecule for effectively reducing organic material is attached to the first sub-pixel and the second sub-pixel region of substrate by opening,
So as to reduce evaporation colour mixture risk.
In the preferred embodiment, in any row pixel cell 1, color is identical and along capable to two adjacent sons
Spacing a between pixel, it is different from color and along row between two adjacent sub-pixels spacing b meet：1/10≤a/b<
1.More preferably, in any row pixel cell 1, color is identical and along row to the spacing a between two adjacent sub-pixels, with color
It is different and met along row to the spacing b between two adjacent sub-pixels：1/3≤a/b<1.Above-mentioned spacing is met between sub-pixel
Design, can significantly decrease and be spaced certain spacing between evaporation colour mixture risk, adjacent subpixels, be easy to its in dot structure
The making of its Rotating fields, such as pixel defining layer, the making of anode layer.
As shown in fig. 6, in an alternate embodiment of the present invention, the second sub-pixel 12a of upper pixel cell Hang Xiang centers
Line S1 (i.e. geometric center lines of the second sub-pixel 12a along line direction) is located at the 3rd sub-pixel 13a of a upper pixel cell with
Between first sub-pixel 11b of one pixel cell；First sub-pixel 11b of next pixel cell row is to center line S2 (i.e.
Geometric center lines of the one sub-pixel 11b along line direction) it is located at the second sub-pixel 12a and next pixel cell of a upper pixel cell
The 3rd sub-pixel 13b between.Using the design, the sub-pixel of adjacent subpixels row is staggered arrangement, can increase row upward not
With the spacing c between color adjacent subpixels, so that further reduction evaporation colour mixture risk.
Further, the long edge row of the first sub-pixel 11 and the second sub-pixel 12 is to setting, and broadside edge is arranged to setting, and first
The length-width ratio m/n of the sub-pixel 12 of sub-pixel 11 and second is more than 1.1；The long edge of 3rd sub-pixel 13 is arranged to setting, broadside edge
Row is less than 3 to setting, the length-width ratio m/n of the 3rd sub-pixel 13.Using the design, ensureing the size of the aperture opening ratio of sub-pixel not
While becoming or be basically unchanged, by reducing the first sub-pixel, the second sub-pixel and the 3rd sub-pixel along the size arranged to direction,
To increase the spacing c between the upward different colours adjacent subpixels of row, so that further reduction evaporation colour mixture risk.
In embodiments of the present invention, the area of the first sub-pixel 11, the second sub-pixel 12 and the 3rd sub-pixel 13 can phase
Together, can also be different.It is preferred that, the area of the first sub-pixel 11 and the second sub-pixel 12 is respectively less than the face of the 3rd sub-pixel 13
Product, so, the first sub-pixel 11, the second sub-pixel 12 and the 3rd sub-pixel 13 are arranged rationally in pixel cell 1, pixel cell
1 size is smaller, and dot structure can arrange more pixel cells 1 in the unit area of viewing area, so as to carry
The resolution ratio of high OLED display.
When the first sub-pixel 11, the second sub-pixel 12 and the 3rd sub-pixel 13 are respectively red sub-pixel, green sub-pixels
During with blue subpixels, the area for being respectively less than blue subpixels that the areas of red sub-pixel and green sub-pixels can be designed.
Because compared to red sub-pixel and green sub-pixels, the life-span of blue subpixels is relatively low, so design can reduce blue sub- picture
The current density of element, reduces its decline rate, so that blue subpixels and red sub-pixel and the life-span phase of green sub-pixels
Matching.
In addition, optional, the area of red sub-pixel is not more than the area of green sub-pixels.Red sub-pixel is than green
The life-span of pixel is less slightly, but is more or less the same, and is made for ease of pixel arrangement and mask plate, red sub-pixel and green sub-pixels
It is identical that area can be designed.
The embodiment of the present invention also provides a kind of OLED display, includes the OLED pixel knot of foregoing any technical scheme
Structure.The sub-pixel aperture opening ratio of the OLED display is higher, and the color side phenomenon at picture edge is improved, and the OLED is shown
Device make when evaporation organic luminous layer colour mixture risk it is relatively low, make used in Vapor deposition mask plate manufacture difficulty and into
This is relatively low.The particular type of OLED display is not limited, for example, can be mobile phone, tablet personal computer, television set, display etc..
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (13)
1. a kind of organic LED pixel structure, it is characterised in that including the multiple pixel cells being arranged in array, each
Pixel cell includes three different sub-pixels of color, respectively the first sub-pixel, the second sub-pixel and the 3rd sub-pixel, each column
Pixel cell includes two row sub-pixels, respectively the first sub-pixel column and the second sub-pixel column, wherein：
With in one-row pixels unit, the first sub-pixel, the second sub-pixel and the 3rd sub-pixel of any two adjacent pixel units are closed
Axisymmetricly arranged in the line of demarcation of described two adjacent pixel units；
Any two adjacent pixel units in same row pixel cell, the first sub-pixel of one of pixel cell and the second son
Pixel and the 3rd sub-pixel of one other pixel unit are located in first sub-pixel column, one of pixel cell
The first sub-pixel and the second sub-pixel of 3rd sub-pixel and the one other pixel unit are located in second sub-pixel column.
2. organic LED pixel structure as claimed in claim 1, it is characterised in that in any row pixel cell, face
Color is identical and along capable to the spacing between two adjacent sub-pixels, less than color difference and along capable to two adjacent sub-pixels
Between spacing.
3. organic LED pixel structure as claimed in claim 2, it is characterised in that in any row pixel cell, face
Color is identical and along row to the spacing a between two adjacent sub-pixels, different from color and along capable to two adjacent sub-pixels
Between spacing b meet：1/10≤a/b<1.
4. organic LED pixel structure as claimed in claim 3, it is characterised in that in any row pixel cell, face
Color is identical and along row to the spacing a between two adjacent sub-pixels, different from color and along capable to two adjacent sub-pixels
Between spacing b meet：1/3≤a/b<1.
5. organic LED pixel structure as claimed in claim 1, it is characterised in that appointing in same row pixel cell
Two adjacent pixel units, the first sub-pixel and the second sub-pixel of a upper pixel cell and the 3rd sub- picture of next pixel cell
Element is located in first sub-pixel column and is arranged in order along the row bearing of trend of first sub-pixel column, a upper pixel
3rd sub-pixel of unit is located at second sub-pixel with the first sub-pixel of next pixel cell and the second sub-pixel
It is arranged in order in row and along the row bearing of trend of second sub-pixel column.
6. organic LED pixel structure as claimed in claim 5, it is characterised in that first sub-pixel, second
The shape of sub-pixel and the 3rd sub-pixel is respectively rectangle；The long edge of 3rd sub-pixel is arranged to setting, broadside along row to
Set.
7. organic LED pixel structure as claimed in claim 6, it is characterised in that the of a upper pixel cell
The row of two sub-pixels is located at the 3rd sub-pixel and the first of next pixel cell of a upper pixel cell to center line
Between sub-pixel；The row of first sub-pixel of next pixel cell is located at the second of a upper pixel cell to center line
Between 3rd sub-pixel of sub-pixel and next pixel cell.
8. organic LED pixel structure as claimed in claim 6, it is characterised in that
The long edge row of first sub-pixel and the second sub-pixel is arranged to setting to setting, broadside edge, first sub-pixel
It is more than 1.1 with the length-width ratio of the second sub-pixel；The length-width ratio of 3rd sub-pixel is less than 3.
9. organic LED pixel structure as claimed in claim 1, it is characterised in that
Each sub-pixel includes anode layer, cathode layer and the organic luminous layer between anode layer and cathode layer；
In any row pixel cell, color is identical and anode layer along from row to two adjacent sub-pixels separately, and organic hair
Photosphere is connected as a single entity structure.
10. the organic LED pixel structure as described in any one of claim 1~9, it is characterised in that first son
The area of pixel and the second sub-pixel is respectively less than the area of the 3rd sub-pixel.
11. organic LED pixel structure as claimed in claim 10, it is characterised in that first sub-pixel,
Two sub-pixels and the 3rd sub-pixel are respectively red sub-pixel, green sub-pixels and blue subpixels.
12. organic LED pixel structure as claimed in claim 11, it is characterised in that the face of the red sub-pixel
Product is not more than the area of the green sub-pixels.
13. a kind of organic LED display device, it is characterised in that including as described in any one of claim 1~12
Organic LED pixel structure.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN109637420A (en) * | 2019-01-09 | 2019-04-16 | 昆山国显光电有限公司 | Pixel arrangement structure, display panel and display device |
| CN109830514A (en) * | 2019-01-18 | 2019-05-31 | 云谷（固安）科技有限公司 | Pixel arrangement structure and display device |
| WO2019178811A1 (en) * | 2018-03-22 | 2019-09-26 | 陶霖密 | Display panel, display apparatus and method for rendering sub-pixels |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009066A (en) * | 2013-12-31 | 2014-08-27 | 昆山工研院新型平板显示技术中心有限公司 | Pixel structure and organic light emitting displayer using same |
| CN104332486A (en) * | 2014-10-29 | 2015-02-04 | 上海和辉光电有限公司 | OLED (Organic Light Emitting Diode) pixel arrangement structure |
| CN104659069A (en) * | 2014-12-17 | 2015-05-27 | 上海天马有机发光显示技术有限公司 | Organic light-emitting display device and manufacturing method thereof |
| CN205231065U (en) * | 2015-12-23 | 2016-05-11 | 昆山国显光电有限公司 | Dot structure and display |
| US20160284769A1 (en) * | 2015-03-25 | 2016-09-29 | Hon Hai Precision Industry Co., Ltd. | Structure of pixel |
| CN106298865A (en) * | 2016-11-16 | 2017-01-04 | 京东方科技集团股份有限公司 | Pixel arrangement structure, organic electroluminescence device, display device, mask plate |
-
2017
- 2017-04-01 CN CN201710213931.3A patent/CN107146804B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009066A (en) * | 2013-12-31 | 2014-08-27 | 昆山工研院新型平板显示技术中心有限公司 | Pixel structure and organic light emitting displayer using same |
| CN104332486A (en) * | 2014-10-29 | 2015-02-04 | 上海和辉光电有限公司 | OLED (Organic Light Emitting Diode) pixel arrangement structure |
| CN104659069A (en) * | 2014-12-17 | 2015-05-27 | 上海天马有机发光显示技术有限公司 | Organic light-emitting display device and manufacturing method thereof |
| US20160284769A1 (en) * | 2015-03-25 | 2016-09-29 | Hon Hai Precision Industry Co., Ltd. | Structure of pixel |
| CN205231065U (en) * | 2015-12-23 | 2016-05-11 | 昆山国显光电有限公司 | Dot structure and display |
| CN106298865A (en) * | 2016-11-16 | 2017-01-04 | 京东方科技集团股份有限公司 | Pixel arrangement structure, organic electroluminescence device, display device, mask plate |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111971735A (en) * | 2018-03-22 | 2020-11-20 | 陶霖密 | Display panel, display device and rendering method of sub-pixels |
| WO2019178811A1 (en) * | 2018-03-22 | 2019-09-26 | 陶霖密 | Display panel, display apparatus and method for rendering sub-pixels |
| CN108447892B (en) * | 2018-05-11 | 2024-04-12 | 京东方科技集团股份有限公司 | Pixel structure, mask plate and OLED display substrate |
| CN108447892A (en) * | 2018-05-11 | 2018-08-24 | 京东方科技集团股份有限公司 | Dot structure, mask plate and oled display substrate |
| US10950632B2 (en) | 2018-12-25 | 2021-03-16 | Wuhan Tianma Micro-Electronics Co., Ltd. | Array substrate, method for fabricating the same and display panel |
| CN109637420A (en) * | 2019-01-09 | 2019-04-16 | 昆山国显光电有限公司 | Pixel arrangement structure, display panel and display device |
| CN109830514A (en) * | 2019-01-18 | 2019-05-31 | 云谷（固安）科技有限公司 | Pixel arrangement structure and display device |
| US11895890B2 (en) | 2019-05-22 | 2024-02-06 | Hefei Boe Joint Technology Co., Ltd. | Display substrate and display apparatus |
| WO2020233698A1 (en) * | 2019-05-22 | 2020-11-26 | 京东方科技集团股份有限公司 | Display substrate and display apparatus |
| CN110807994A (en) * | 2019-11-11 | 2020-02-18 | 武汉天马微电子有限公司 | Pixel arrangement structure, display panel and display device |
| CN111261689A (en) * | 2020-02-07 | 2020-06-09 | 武汉华星光电半导体显示技术有限公司 | OLED display panel and OLED display device |
| US11950477B2 (en) | 2020-02-07 | 2024-04-02 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | OLED display panel and OLED display device |
| CN111370455A (en) * | 2020-03-18 | 2020-07-03 | 深圳市华星光电半导体显示技术有限公司 | Pixel arrangement structure, display panel and display device |
| CN111370455B (en) * | 2020-03-18 | 2022-11-01 | 深圳市华星光电半导体显示技术有限公司 | Pixel arrangement structure, display panel and display device |
| CN111710696A (en) * | 2020-06-04 | 2020-09-25 | 深圳市华星光电半导体显示技术有限公司 | Display panel and manufacturing method thereof |
| CN111710696B (en) * | 2020-06-04 | 2023-06-30 | 深圳市华星光电半导体显示技术有限公司 | Display panel and manufacturing method thereof |
| CN111969018A (en) * | 2020-08-21 | 2020-11-20 | 合肥维信诺科技有限公司 | Pixel structure, display panel and mask set |
| CN111969018B (en) * | 2020-08-21 | 2024-03-01 | 合肥维信诺科技有限公司 | Pixel structure, display panel and mask plate group |
| CN112909060A (en) * | 2021-02-02 | 2021-06-04 | 武汉华星光电半导体显示技术有限公司 | Pixel structure and mask plate |
| CN113421902A (en) * | 2021-06-18 | 2021-09-21 | 昆山国显光电有限公司 | Pixel structure and display device |
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