CN102354702A - Pixel structure of organic light emitting diode (OLED) - Google Patents
Pixel structure of organic light emitting diode (OLED) Download PDFInfo
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- CN102354702A CN102354702A CN2011103499709A CN201110349970A CN102354702A CN 102354702 A CN102354702 A CN 102354702A CN 2011103499709 A CN2011103499709 A CN 2011103499709A CN 201110349970 A CN201110349970 A CN 201110349970A CN 102354702 A CN102354702 A CN 102354702A
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Abstract
The invention provides a pixel structure of an organic light emitting diode (OLED). The pixel structure is arranged on a substrate and comprises a plurality of pixels, wherein the pixels are arranged in a matrix in the X-axis and Y-axis directions; each pixel comprises a first subpixel, two second subpixels and a third subpixel; the first subpixel, one second subpixel, the third subpixel and the other second subpixel are arranged in sequence in the X-axis direction; the first subpixel comprises two first light emitting zones; each second subpixel comprises a second light emitting zone; the third subpixel comprises two third light emitting zones; and the adjacent first light emitting zone, second light emitting zone and third light emitting zone are arranged in a triangle, the geometric centers of the three light emitting zones are arranged on different peaks of the triangle, and one side of the triangle formed by connecting the geometric centers of the first light emitting zone and the third light emitting zone, is parallel to the X-axis. The pixel structure has the following advantages: by adopting the pixel structure, color mixture can be avoided, the resolution can be increased and the aperture ratio can be increased and the service life can be prolonged.
Description
Technical Field
The present disclosure relates to pixel structures, and particularly to a pixel structure of an organic light emitting display.
Background
An organic light emitting display (abbreviated as OLED) has a large viewing angle, an excellent contrast ratio, a high response speed, and characteristics such as lightness, thinness, power saving, and high resolution, has become a mainstream flat panel display, and is considered as a new generation display.
A color image screen of an organic light emitting display (abbreviated as OLED) is mainly provided by a plurality of pixels having three sub-pixels of red, green and blue. The design of the pixel structure affects the resolution of an Organic Light Emitting Display (OLED). In the prior art, each pixel in a display structure of an organic light emitting display (abbreviated as OLED) has three red, green and blue sub-pixels, which are sequentially arranged in the order of red, green and blue to form stripes, and the color of the sub-pixels in each column is the same. In the fabrication of such conventional display structures, red, green and blue sub-pixels are typically formed by deposition on a substrate different from the display panel using a mask alignment method. The resolution of the panel of an organic light emitting display (abbreviated as OLED) is closely related to the size of the opening of the mask. The smaller the distance between adjacent sub-pixels, the higher the resolution of the display panel, but alignment errors are easily generated during the manufacturing process, which may cause the color organic layer in the sub-pixel to be deposited in the adjacent sub-pixel, resulting in color mixing of the light emitted by the sub-pixel. Such an arrangement of sub-pixels may also cause a corresponding mask to be etched with considerable difficulty, and thus, it is difficult to manufacture a high-resolution organic light emitting display (abbreviated as OLED) using the conventional sub-pixel arrangement.
In view of the above, a need exists in the art for a display structure of an organic light emitting display (abbreviated as OLED) that can avoid color mixing, increase resolution, and have a high aperture ratio.
Disclosure of Invention
The invention provides a pixel structure of an organic light emitting display (abbreviated as OLED) aiming at the defects that color mixing is easy to occur between adjacent sub-pixels in the organic light emitting display and the aperture ratio and the service life are influenced when the resolution is increased in the prior art.
The invention provides a pixel structure of an organic light-emitting display, which is positioned on a substrate and comprises a plurality of pixels, wherein the pixels are arranged in a matrix in an X-axis direction and a Y-axis direction, each pixel comprises a first sub-pixel, two second sub-pixels and a third sub-pixel, the first sub-pixel, the second sub-pixel, the third sub-pixel and the second sub-pixel are sequentially arranged in the X-axis direction in sequence, the first sub-pixel comprises two first light-emitting areas, the second sub-pixel comprises a second light-emitting area, the third sub-pixel comprises two third light-emitting areas, a first light-emitting area, a second light-emitting area and a third light-emitting area which are adjacent are arranged into a triangle, the geometric center of each light-emitting area is positioned at different vertexes of the triangle, and one side of the triangle formed by connecting the geometric centers of the first light-emitting area and the third light-emitting area is parallel to the.
Preferably, the first sub-pixel includes four first light emitting regions, the second sub-pixel includes two second light emitting regions, and the third sub-pixel includes four third light emitting regions.
Preferably, the first light-emitting region corresponds to a blue light-emitting region, the second light-emitting region corresponds to a red light-emitting region, and the third light-emitting region corresponds to a green light-emitting region.
Preferably, each of the first light-emitting region, the second light-emitting region and the third light-emitting region has a width in the X-axis direction and a length in the Y-axis direction.
Preferably, the length of each of the first light emitting area and the third light emitting area is greater than the width.
Preferably, the length of each second light emitting area is equal to the width.
Preferably, the length of each second light emitting area is less than the width.
By adopting the invention, the resolution of the organic light-emitting display is increased by increasing the sub-pixels to fill the space between the adjacent pixels, the color mixing can be avoided, the aperture opening ratio can be increased, and the service life can be prolonged.
Drawings
The various aspects of the present invention will become more apparent to the reader after reading the detailed description of the invention with reference to the attached drawings. Wherein,
fig. 1 is a schematic diagram illustrating a pixel structure of an organic light emitting display according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating a pixel structure of an organic light emitting display according to another embodiment of the present invention.
Fig. 3 is a schematic view illustrating a pixel structure of an organic light emitting display according to still another embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram illustrating a pixel structure of an organic light emitting display according to an embodiment of the present invention. Referring to fig. 1, a pixel structure 1 is disposed on a substrate (not shown), and includes a plurality of pixels 10 arranged in a matrix in an X-axis direction and a Y-axis direction. Each pixel 10 includes a first sub-pixel 11, two second sub-pixels 12 and 14, and a third sub-pixel 13, and the first sub-pixel 11, the second sub-pixel 12, the third sub-pixel 13, and the second sub-pixel 14 are sequentially arranged in the X-axis direction. The first sub-pixel 11 has two first light emitting regions 111 and 112, the third sub-pixel 13 has two third light emitting regions 131 and 132, and the second sub-pixels 12 and 14 have a second light emitting region 121 and 141, respectively. The first light-emitting area and the third light-emitting area are equal in size. In this embodiment, the first light emitting regions 111 and 112 correspond to blue light emitting regions, the second light emitting regions 121 and 141 correspond to red light emitting regions, and the third light emitting regions 131 and 132 correspond to green light emitting regions. In addition, the first light emitting regions 112, the second light emitting regions 121 and the third light emitting regions 131 are arranged to form a triangle 15, the third light emitting regions 132, the second light emitting regions 141 and the first light emitting regions 111 of another pixel 10 adjacent in the X-axis direction are arranged to form a triangle 16, the first light emitting regions 112, the third light emitting regions 131 and the second light emitting regions 121 of another pixel 10 adjacent in the Y-axis direction are arranged to form a triangle 17, the third light emitting regions 132, the first light emitting regions 111 of another pixel 10 adjacent in the X-axis direction and the second light emitting regions 141 of another pixel 10 adjacent in the Y-axis direction are arranged to form a triangle 18, the geometric centers of the first light emitting regions 111 and 112, the second light emitting regions 121, the third light emitting regions 131 and 132 and the second light emitting regions 141 are located at the vertexes of the triangles 15, 16, 17 and 18, and the sides of the triangle formed by connecting the geometric centers of the first light-emitting area and the third light-emitting area are parallel to the X axis. In addition, as shown in fig. 1, the geometric centers of the second light emitting regions 121 and 141 may be the vertices of two triangles at the same time. The first light-emitting regions 111 and 112, the second light-emitting regions 121 and 141, and the third light-emitting regions 131 and 132 respectively have a width in the X-axis direction and a length in the Y-axis direction, in this embodiment, the length of the first light-emitting regions 111 and 112 is greater than the width, the length of the second light-emitting regions 121 and 141 is greater than the width, and the length of the third light-emitting regions 131 and 132 is equal to the width. In another embodiment, as shown in fig. 3, the first light emitting regions 111 and 112 have a length greater than a width, the second light emitting regions 121 and 141 have a length less than a width, and the third light emitting regions 131 and 132 have a length greater than a width. In this way, the space between adjacent pixels is filled with the light emitting materials with different colors, thereby avoiding the phenomenon of color mixing easily occurring in the conventional process, improving the resolution of the organic light emitting display, increasing the aperture opening ratio and prolonging the service life.
Fig. 2 is a schematic diagram illustrating a pixel structure of an organic light emitting display according to another embodiment of the present invention. Referring to fig. 2, as in the embodiment shown in fig. 1, the pixel structure 2 is disposed on a substrate (not shown), and includes a plurality of pixels 20 arranged in a matrix in an X-axis direction and a Y-axis direction. Each pixel 20 includes a first sub-pixel 21, two second sub-pixels 22 and 24, and a third sub-pixel 23, which are sequentially arranged in the X-axis direction according to the order of the first sub-pixel 21, the second sub-pixel 22, the third sub-pixel 23, and the second sub-pixel 24. The first sub-pixel 21 has four first light emitting areas 211, 212, 213 and 214, which are arranged in pairs. The third sub-pixel 23 has four third light emitting areas 231, 232, 233 and 234, which are arranged correspondingly to each other. The second sub-pixel 22 has two second light emitting regions 221 and 222 arranged side by side, and the second sub-pixel 24 has two light emitting regions 241 and 242 arranged side by side. The first light-emitting area and the third light-emitting area are equal in size. In this embodiment, the first light-emitting region corresponds to a blue light-emitting region, the second light-emitting region corresponds to a red light-emitting region, and the third light-emitting region corresponds to a green light-emitting region. In addition, the first light emitting region 212, the second light emitting region 222 and the third light emitting region 231 are arranged to form a triangle 25, the third light emitting region 232, the second light emitting region 242 and the first light emitting region 211 of another pixel 20 adjacent in the X-axis direction are arranged to form a triangle 26, the first light emitting region 224, the third light emitting region 233 and the second light emitting region 221 of another pixel 20 adjacent in the Y-axis direction are arranged to form a triangle 27, the third light emitting region 234, the first light emitting region 213 of another pixel 20 adjacent in the X-axis direction and the second light emitting region 241 of another pixel 20 adjacent in the Y-axis direction are arranged to form a triangle 28, and the geometric centers of the first light emitting region, the second light emitting region and the third light emitting region are located at the vertexes of the triangles 25, 26, 27 and 28. The side of a triangle formed by connecting the geometric centers of the first light-emitting area and the third light-emitting area is parallel to the X axis. The first light emitting regions 211, 212, 213, and 214, the second light emitting regions 221, 222, 241, and 242, and the third light emitting regions 231, 232, 233, and 234 respectively have a width in the X-axis direction and a length in the Y-axis direction. In this way, the space between adjacent pixels is filled with the light emitting materials with different colors, thereby avoiding the phenomenon of color mixing easily occurring in the conventional process, improving the resolution of the organic light emitting display, increasing the aperture opening ratio and prolonging the service life.
The invention has the advantages that: the resolution of the organic light emitting display may be increased by increasing the sub-pixels to fill the space between adjacent pixels.
Hereinbefore, specific embodiments of the present invention are described with reference to the drawings. However, those skilled in the art will appreciate that various modifications and substitutions can be made to the specific embodiments of the present invention without departing from the spirit and scope of the invention. Such modifications and substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (7)
1. A pixel structure of an organic light emitting display is arranged on a substrate and is characterized by comprising a plurality of pixels, the pixels are arranged in a matrix in the X-axis direction and the Y-axis direction, each pixel comprises a first sub-pixel, two second sub-pixels and a third sub-pixel, the first sub-pixel, the second sub-pixel, the third sub-pixel and the second sub-pixel are sequentially arranged along the X-axis direction, the first sub-pixel comprises two first light emitting areas, the second sub-pixel comprises a second light emitting area, the third sub-pixel comprises two third light emitting areas, wherein the adjacent first light emitting area, the second light emitting area and the third light emitting area are arranged into a triangle, the geometric center of each light emitting area is positioned at different vertexes of the triangle, and one side of the triangle formed by connecting the geometric centers of the first light-emitting area and the third light-emitting area is parallel to the X axis.
2. The pixel structure of claim 1, wherein the first sub-pixel comprises four of the first light emitting regions, the second sub-pixel comprises two of the second light emitting regions, and the third sub-pixel comprises four of the third light emitting regions.
3. The pixel structure of claim 1 or 2, wherein the first light-emitting area corresponds to a blue light-emitting area, the second light-emitting area corresponds to a red light-emitting area, and the third light-emitting area corresponds to a green light-emitting area.
4. The pixel structure of claim 3, wherein each of the first light-emitting region, the second light-emitting region and the third light-emitting region has a width in an X-axis direction and a length in a Y-axis direction.
5. The pixel structure of claim 4, wherein the length of each of the first light emitting region and the third light emitting region is greater than the width.
6. The pixel structure of claim 5, wherein said length of each of said second light emitting areas is equal to said width.
7. The pixel structure of claim 5, wherein said length of each of said second light emitting regions is less than said width.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103499709A CN102354702A (en) | 2011-10-31 | 2011-10-31 | Pixel structure of organic light emitting diode (OLED) |
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| CN2011103499709A CN102354702A (en) | 2011-10-31 | 2011-10-31 | Pixel structure of organic light emitting diode (OLED) |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299979A (en) * | 2013-07-19 | 2015-01-21 | 群创光电股份有限公司 | Organic electroluminescence display panel |
| CN104466007A (en) * | 2014-12-30 | 2015-03-25 | 京东方科技集团股份有限公司 | Pixel structure, display method of pixel structure and display device |
| CN104465714A (en) * | 2014-12-30 | 2015-03-25 | 京东方科技集团股份有限公司 | Pixel structure, display method of pixel structure and display device |
| US9269752B2 (en) | 2013-07-19 | 2016-02-23 | Innolux Corporation | Organic electroluminescence display |
| WO2016161815A1 (en) * | 2015-04-09 | 2016-10-13 | 京东方科技集团股份有限公司 | Pixel structure, driving method therefor, and display device |
| CN107111987A (en) * | 2014-10-22 | 2017-08-29 | 欧库勒斯虚拟现实有限责任公司 | The sub-pixel of display with controllable visual angle |
| CN107342039A (en) * | 2016-04-29 | 2017-11-10 | 乐金显示有限公司 | Organic light-emitting display device |
| CN108257556A (en) * | 2018-01-05 | 2018-07-06 | 友达光电股份有限公司 | Display device and driving method thereof |
| CN112889157A (en) * | 2018-10-22 | 2021-06-01 | 麦克罗欧莱德公司 | Display device capable of day and night display |
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2011
- 2011-10-31 CN CN2011103499709A patent/CN102354702A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9269752B2 (en) | 2013-07-19 | 2016-02-23 | Innolux Corporation | Organic electroluminescence display |
| CN104299979A (en) * | 2013-07-19 | 2015-01-21 | 群创光电股份有限公司 | Organic electroluminescence display panel |
| CN104299979B (en) * | 2013-07-19 | 2017-12-12 | 群创光电股份有限公司 | Organic electric-excitation luminescent displaying panel |
| US11341903B2 (en) | 2014-10-22 | 2022-05-24 | Facebook Technologies, Llc | Sub-pixel for a display with controllable viewing angle |
| CN107111987A (en) * | 2014-10-22 | 2017-08-29 | 欧库勒斯虚拟现实有限责任公司 | The sub-pixel of display with controllable visual angle |
| US10937361B2 (en) | 2014-10-22 | 2021-03-02 | Facebook Technologies, Llc | Sub-pixel for a display with controllable viewing angle |
| US10043433B2 (en) | 2014-12-30 | 2018-08-07 | Boe Technology Group Co., Ltd | Pixel structure and displaying method thereof, and related display apparatus |
| CN104466007A (en) * | 2014-12-30 | 2015-03-25 | 京东方科技集团股份有限公司 | Pixel structure, display method of pixel structure and display device |
| CN104465714A (en) * | 2014-12-30 | 2015-03-25 | 京东方科技集团股份有限公司 | Pixel structure, display method of pixel structure and display device |
| US9959808B2 (en) | 2014-12-30 | 2018-05-01 | Boe Technology Group Co., Ltd. | Pixel structure and displaying method thereof, and related display apparatus |
| WO2016161815A1 (en) * | 2015-04-09 | 2016-10-13 | 京东方科技集团股份有限公司 | Pixel structure, driving method therefor, and display device |
| US9653017B2 (en) | 2015-04-09 | 2017-05-16 | Boe Technology Group Co., Ltd. | Pixel structure, driving method thereof and display device |
| CN107342039B (en) * | 2016-04-29 | 2020-05-12 | 乐金显示有限公司 | Organic light emitting display device |
| CN107342039A (en) * | 2016-04-29 | 2017-11-10 | 乐金显示有限公司 | Organic light-emitting display device |
| CN108257556A (en) * | 2018-01-05 | 2018-07-06 | 友达光电股份有限公司 | Display device and driving method thereof |
| CN112889157A (en) * | 2018-10-22 | 2021-06-01 | 麦克罗欧莱德公司 | Display device capable of day and night display |
| CN112889157B (en) * | 2018-10-22 | 2024-03-12 | 麦克罗欧莱德公司 | Display device capable of displaying day and night |
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Application publication date: 20120215 |