CN110085624B - Pixel arrangement structure, display panel and mask plate assembly - Google Patents
Pixel arrangement structure, display panel and mask plate assembly Download PDFInfo
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- CN110085624B CN110085624B CN201810550577.8A CN201810550577A CN110085624B CN 110085624 B CN110085624 B CN 110085624B CN 201810550577 A CN201810550577 A CN 201810550577A CN 110085624 B CN110085624 B CN 110085624B
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- 239000003086 colorant Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 abstract description 20
- 230000008569 process Effects 0.000 abstract description 18
- 238000001704 evaporation Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000008020 evaporation Effects 0.000 abstract description 5
- 239000002184 metal Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010129 solution processing Methods 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
- H10K59/353—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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
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- Geometry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to a pixel arrangement structure, a display panel and a mask, wherein the pixel arrangement structure comprises a plurality of pixel units which are repeatedly arranged, each pixel unit comprises a green pixel group, a red pixel group and two blue pixel groups, the green pixel group, the red pixel group and the two blue pixel groups are arranged in two rows, the colors of the adjacent pixel groups are different, the red pixel group consists of eight red sub-pixels, the green pixel group consists of eight green sub-pixels, and the blue pixel group consists of four blue sub-pixels. The invention improves the resolution of the display panel and reduces the high-precision requirements on equipment and process technology in the evaporation process and the printing process by regularly arranging the red, green and blue sub-pixels.
Description
Technical Field
The invention relates to the technical field of display, in particular to a pixel arrangement structure, a display panel and a mask assembly.
Background
Organic Light Emitting Diodes (OLEDs) are becoming the mainstream of displays because of their advantages of self-luminescence, fast response, wide viewing angle, high brightness, lightness, thinness, etc. On one hand, the independent light emission of the organic light-emitting material by evaporation is the most adopted mode for realizing OLED full-color display at present, and the red, green and blue light-emitting layers are prepared by an evaporation method mainly by utilizing a precise metal mask and a pixel contraposition technology. However, the resolution of the OLED display manufactured by the above method is greatly limited due to the high requirement for the precision of the pattern size of the metal mask. On the other hand, the solution processing method for manufacturing the OLED display is an important direction for the development of the future display technology, especially the printing process, due to the advantages of low cost, high productivity, easy realization of large size and the like. With the continuous development of display technology, the resolution of the display panel is higher and higher, and to realize a high-resolution product, the pixel needs to be designed to be smaller, which also puts a strict precision requirement on the printing equipment.
Disclosure of Invention
In view of this, there is a need to provide a pixel arrangement structure that can reduce the requirements for equipment and process accuracy.
The utility model provides a pixel arrangement structure, includes the pixel unit of a plurality of repeated arrangement, the pixel unit includes a green pixel group, a red pixel group and two blue pixel groups, a green pixel group, a red pixel group and two blue pixel groups are two rows of arrangement settings and the color of adjacent pixel group is different, red pixel group comprises eight red sub-pixels, green pixel group comprises eight green sub-pixels, blue pixel group comprises four blue sub-pixels.
The pixel arrangement scheme is a key difficulty in the art, and it is not easy to obtain a new pixel arrangement structure that simultaneously satisfies the above requirements, not only by increasing the resolution through the pixel arrangement, but also by satisfying the RGB matching requirements, and further by reducing the requirements for the equipment and process precision. The invention creatively concentrates eight red sub-pixels together to form a red pixel group, concentrates eight green sub-pixels together to form a green pixel group, concentrates four blue sub-pixels together to form a blue pixel group, and arranges one green pixel group, one red pixel group and two blue pixel groups in two rows, and the colors of the adjacent pixel groups are different to form a basic pixel unit. By the arrangement mode, the red pixel group and the green pixel group are composed of eight sub-pixels, the resolution ratio is improved, and simultaneously the arrangement mode can meet the RGB matching requirement.
In one embodiment, the ratio of the areas of the blue sub-pixel, the red sub-pixel and the green sub-pixel is 2:1: 1.
In one embodiment, the red pixel group is rectangular and consists of eight triangular red subpixels.
In one embodiment, the set of green pixels is rectangular and consists of eight triangular green sub-pixels.
In one embodiment, the set of blue pixels is rectangular and consists of four rectangular blue subpixels.
In one embodiment, the pixel arrangement structure further includes a first pixel defining layer for defining adjacent sub-pixels and a second pixel defining layer for defining adjacent pixel groups.
In one embodiment, the pixel arrangement structure further includes a third pixel defining layer, a fourth pixel defining layer and a fifth pixel defining layer, the third pixel defining layer is used for defining adjacent sub-pixels, the fifth pixel defining layer is disposed on the fourth pixel defining layer, the fourth pixel defining layer and the fifth pixel defining layer are used for defining adjacent pixel groups, and the fifth pixel defining layer is liquid-repellent.
In one embodiment, the fifth pixel defining layer is tapered from a bottom portion in contact with the fourth pixel defining layer to a top portion.
The invention also provides a display panel comprising the pixel arrangement structure.
The invention also provides a mask plate assembly for preparing the pixel arrangement structure, which comprises a blue mask plate, a red mask plate and a green mask plate, wherein the blue mask plate is provided with a plurality of first openings for forming the blue pixel group, the red mask plate is provided with a plurality of second openings for forming the red pixel group, and the green mask plate is provided with a plurality of third openings for forming the green pixel group.
Drawings
FIG. 1 is a schematic structural diagram of a pixel arrangement structure according to an embodiment;
fig. 2 is a partial sectional view of the pixel arrangement structure shown in fig. 1;
FIG. 3 is a partial sectional view of a pixel arrangement structure according to another embodiment;
FIG. 4 is a schematic diagram of a structure of a blue mask of the mask assembly according to an embodiment, wherein black is a metal covering region and white is an opening region;
FIG. 5 is a schematic diagram of a red mask of the mask assembly according to an embodiment, wherein black is a metal covering region and white is an opening region;
fig. 6 is a schematic structural diagram of a green mask of the mask assembly according to an embodiment, wherein black is a metal covering region and white is an opening region.
Detailed Description
In order that the invention may be more fully understood, a more particular description of the invention will now be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the pixel arrangement structure 100 according to an embodiment of the present invention includes a plurality of pixel units 110 arranged repeatedly, where the pixel units 110 include a green pixel group 111, a red pixel group 112, and two blue pixel groups 113, and the green pixel group 111, the red pixel group 112, and the two blue pixel groups 113 are arranged in two rows and the colors of the adjacent pixel groups are different. The red pixel group 112 is composed of eight red sub-pixels 1121, the green pixel group 111 is composed of eight green sub-pixels 1111, and the blue pixel group 113 is composed of four blue sub-pixels 1131.
The pixel arrangement scheme is a key difficulty in the art, and it is not easy to obtain a new pixel arrangement structure that simultaneously satisfies the above requirements, not only by increasing the resolution through the pixel arrangement, but also by satisfying the RGB matching requirements, and further by reducing the requirements for the equipment and process precision. The present embodiment creatively integrates eight red sub-pixels 1121 into a group to form a red pixel group 112, eight green sub-pixels 1111 into a group to form a green pixel group 111, four blue sub-pixels 1131 into a group to form a blue pixel group 113, and arranges one green pixel group 111, one red pixel group 112, and two blue pixel groups 113 in two rows with the colors of the adjacent pixel groups being different to form a basic pixel unit 110. By the arrangement mode, the red pixel group 112 and the green pixel group 111 are formed by eight sub-pixels, the resolution is improved, and simultaneously the arrangement mode can meet the RGB matching requirement.
Specifically, the ratio of the areas of the blue sub-pixel 1131, the red sub-pixel 1121 and the green sub-pixel 1111 is 2:1:1, and the area of the blue sub-pixel 1131 is twice that of the red sub-pixel 1121 and the green sub-pixel 1111, which is to improve the lifetime of the blue sub-pixel 1131 in the display panel and compensate for the problem of the low lifetime of blue light by increasing the area of the blue sub-pixel 1131.
In one embodiment, with continued reference to fig. 1, the red pixel group 112 is rectangular and is composed of eight triangular red subpixels 1121, and the eight red subpixels 1121 are arranged in a manner having a common vertex. In one embodiment, as shown in FIG. 1, green pixel group 111 is rectangular and consists of eight triangular green subpixels 1111 arranged in a manner that has one common vertex. In one embodiment, the blue pixel group 113 is rectangular and consists of four rectangular blue subpixels 1131. Thus, the pixel units 110 which can form a rectangle are arranged in two rows by one green pixel group 111, one red pixel group 112 and two blue pixel groups 113, and the whole area arrangement can be just performed, so that the stability of the display panel is improved. It is understood that the plurality of pixel units 110 may be repeatedly arranged as required, such as a matrix arrangement, a linear arrangement, and the like.
In the specific implementation manner of the invention, on one hand, more sub-pixels can be deposited under the same opening area of the mask plate in the evaporation process, so that the high-precision requirement of high resolution on the pattern size of the mask plate is reduced, and on the other hand, in the printing process, the adjacent sub-pixels with the same color are concentrated together, so that the reduction of the printing process complexity and the precision requirement of printing equipment is facilitated.
As shown in fig. 2, in an embodiment under the evaporation process condition, the pixel arrangement structure 100 further includes a first pixel defining layer 120 and a second pixel defining layer 130, the first pixel defining layer 120 is used for defining adjacent sub-pixels, and the second pixel defining layer 130 is used for defining adjacent pixel groups. Alternatively, the first and second pixel defining layers 120 and 130 have a thickness of 0.1 to 0.2 μm, and the third pixel defining layer 140 has a thickness of 0.5 to 2 μm.
As shown in fig. 3, in another embodiment under the printing process condition, the pixel arrangement structure further includes a third pixel defining layer 140, a fourth pixel defining layer 150, and a fifth pixel defining layer 160, the third pixel defining layer 140 is used for defining adjacent sub-pixels, the fifth pixel defining layer 160 is disposed on the fourth pixel defining layer 150, the fourth pixel defining layer 150 and the fifth pixel defining layer 160 are used for defining adjacent pixel groups, and the fifth pixel defining layer 160 is liquid-repellent. The adjacent sub-pixels with the same color are gathered together, the third pixel limiting layer 140 covers the edge area of the pixel electrode 101, so that short circuit caused by point discharge generated in later work can be prevented, the fourth pixel limiting layer 150 and the fifth pixel limiting layer 160 enclose an ink deposition area of a pixel group, the printing process of a high-resolution display is facilitated, and ink color mixing is avoided.
Further, the fifth pixel defining layer 160 is tapered from the bottom to the top in contact with the fourth pixel defining layer 150. Therefore, in the printing process, the deposition area of the ink can be enlarged, the condition that the sub-pixels with different colors are mixed with each other due to overflow of the ink is effectively prevented, and the product yield and the display effect of the display device prepared by the printing process are improved.
In summary, the red, green and blue sub-pixels are regularly arranged, so that the effect of improving the resolution of the display panel is achieved, and high-resolution display can be realized. Furthermore, the scheme of the invention reduces the high-precision requirements on equipment and process technology in the evaporation process and the printing process corresponding to different implementation modes.
As shown in fig. 1, a display panel (not shown) according to an embodiment of the invention includes the pixel arrangement structure 100.
As shown in fig. 4 to 6, the mask assembly according to an embodiment of the present invention includes a blue mask 200, a red mask 300, and a green mask 400, wherein the blue mask 200 is provided with a plurality of first openings 201 for forming the blue pixel group 113, the red mask 300 is provided with a plurality of second openings 301 for forming the red pixel group 112, and the green mask 400 is provided with a plurality of third openings 401 for forming the green pixel group 111.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The pixel arrangement structure is characterized by comprising a plurality of pixel units which are repeatedly arranged, wherein each pixel unit comprises a green pixel group, a red pixel group and two blue pixel groups, the green pixel group, the red pixel group and the two blue pixel groups are arranged in two rows and two columns, the colors of the adjacent pixel groups are different, the red pixel group comprises eight red sub-pixels, the green pixel group comprises eight green sub-pixels, and the blue pixel group comprises four blue sub-pixels.
2. The pixel arrangement structure according to claim 1, wherein a ratio of areas of the blue sub-pixel, the red sub-pixel, and the green sub-pixel is 2:1: 1.
3. The pixel arrangement structure according to claim 1, wherein the red pixel group is rectangular and is composed of eight triangular red sub-pixels.
4. The pixel arrangement structure according to claim 1, wherein the green pixel group is rectangular and is composed of eight triangular green sub-pixels.
5. The pixel arrangement structure according to claim 1, wherein the blue pixel group is rectangular and is composed of four rectangular blue subpixels.
6. The pixel arrangement structure according to any one of claims 1 to 5, further comprising a first pixel defining layer for defining adjacent sub-pixels and a second pixel defining layer for defining adjacent pixel groups.
7. The pixel arrangement structure according to any one of claims 1 to 5, further comprising a third pixel defining layer for defining adjacent sub-pixels, a fourth pixel defining layer provided on the fourth pixel defining layer, and a fifth pixel defining layer for defining adjacent pixel groups, the fifth pixel defining layer being lyophobic.
8. The pixel arrangement structure according to claim 7, wherein the fifth pixel defining layer is tapered from a bottom portion in contact with the fourth pixel defining layer to a top portion.
9. A display panel comprising the pixel arrangement structure according to any one of claims 1 to 8.
10. A mask assembly for preparing the pixel arrangement structure according to any one of claims 1 to 6, comprising a blue mask, a red mask and a green mask, wherein the blue mask is provided with a plurality of first openings for forming the blue pixel groups, the red mask is provided with a plurality of second openings for forming the red pixel groups, and the green mask is provided with a plurality of third openings for forming the green pixel groups.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550577.8A CN110085624B (en) | 2018-05-31 | 2018-05-31 | Pixel arrangement structure, display panel and mask plate assembly |
| PCT/CN2018/125618 WO2019227926A1 (en) | 2018-05-31 | 2018-12-29 | Pixel arrangement structure, display panel and mask plate assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550577.8A CN110085624B (en) | 2018-05-31 | 2018-05-31 | Pixel arrangement structure, display panel and mask plate assembly |
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| CN110085624A CN110085624A (en) | 2019-08-02 |
| CN110085624B true CN110085624B (en) | 2021-05-28 |
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| CN201810550577.8A Active CN110085624B (en) | 2018-05-31 | 2018-05-31 | Pixel arrangement structure, display panel and mask plate assembly |
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| WO (1) | WO2019227926A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883558A (en) * | 2019-08-22 | 2020-11-03 | 广东聚华印刷显示技术有限公司 | Pixel arrangement structure, light emitting device and display panel |
| CN111883560B (en) * | 2019-08-29 | 2022-02-15 | 广东聚华印刷显示技术有限公司 | Pixel arrangement structure and display panel comprising same |
| CN112563311B (en) * | 2020-12-10 | 2024-01-23 | 合肥维信诺科技有限公司 | Pixel arrangement structure, display panel and mask assembly |
| CN113707696A (en) * | 2021-08-26 | 2021-11-26 | 京东方科技集团股份有限公司 | Display substrate, mask and display device |
| CN117082915B (en) * | 2023-09-20 | 2024-08-23 | 惠科股份有限公司 | Display panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282236A (en) * | 2013-07-11 | 2015-01-14 | 上海和辉光电有限公司 | Pixel arrangement mode and display panel using same |
| CN104778919A (en) * | 2015-04-16 | 2015-07-15 | 上海善星实业有限公司 | OLED panel, driving method and FMM for evaporation |
| CN107068729A (en) * | 2017-05-09 | 2017-08-18 | 京东方科技集团股份有限公司 | Dot structure and preparation method thereof, display base plate and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9444050B2 (en) * | 2013-01-17 | 2016-09-13 | Kateeva, Inc. | High resolution organic light-emitting diode devices, displays, and related method |
| KR102136275B1 (en) * | 2013-07-22 | 2020-07-22 | 삼성디스플레이 주식회사 | Organic light emitting device and method for manufacturing the same |
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- 2018-12-29 WO PCT/CN2018/125618 patent/WO2019227926A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282236A (en) * | 2013-07-11 | 2015-01-14 | 上海和辉光电有限公司 | Pixel arrangement mode and display panel using same |
| CN104778919A (en) * | 2015-04-16 | 2015-07-15 | 上海善星实业有限公司 | OLED panel, driving method and FMM for evaporation |
| CN107068729A (en) * | 2017-05-09 | 2017-08-18 | 京东方科技集团股份有限公司 | Dot structure and preparation method thereof, display base plate and display device |
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| WO2019227926A1 (en) | 2019-12-05 |
| CN110085624A (en) | 2019-08-02 |
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