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Pixel structure, mask plate, and OLED display substrate

A technology of pixel structure and mask plate, which is applied in the direction of vacuum evaporation plating, coating, electric solid device, etc., can solve the problem of high processing technology difficulty, achieve the effect of reducing process difficulty, simple structure, and ensuring display quality

Pending Publication Date: 2018-08-24
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This luminescent technology needs to evaporate the luminescent material to the effective display area through a high-precision mask. In order to obtain high resolution, it is necessary to increase the number of pixels per inch of the display device, that is, the pixel density (Pixels per inch, PPI). It is necessary to reduce the pixel size, and the smaller the pixel size, the more difficult the processing technology is, and with the continuous refinement of the process, the process improvement will reach the limit

Method used

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  • Pixel structure, mask plate, and OLED display substrate
  • Pixel structure, mask plate, and OLED display substrate
  • Pixel structure, mask plate, and OLED display substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] In this example, if figure 1 As shown, the pixel structure includes a plurality of pixel repeating units, and each pixel repeating unit includes four pixel units, and the four pixel units include a first pixel unit 41 (the part in the solid line frame), a second pixel unit 42 (the solid line frame Inner part), the third pixel unit 43 (the part in the solid line frame) and the fourth pixel unit 44 (the part in the solid line frame), wherein the first pixel unit 41 and the second pixel unit 42 are located in the same row, and the third pixel unit The unit 43 and the fourth pixel unit 44 are located in another row, the first pixel unit 41 and the third pixel unit 43 are located in the same column, the second pixel unit 42 and the fourth pixel unit 44 are located in another column, and the sub-units in the first pixel unit 41 The pixel and the sub-pixel in the second pixel unit 42 are symmetrical with respect to the center line in the column direction of the pixel repeating...

Embodiment 2

[0072] In this example, if Figure 5 As shown, the pixel structure includes a plurality of pixel repeating units, and each pixel repeating unit includes four pixel units, and the four pixel units include a first pixel unit 41 (the part in the solid line frame), a second pixel unit 42 (the solid line frame Inner part), the third pixel unit 43 (the part in the solid line frame) and the fourth pixel unit 44 (the part in the solid line frame), wherein the first pixel unit 41 and the second pixel unit 42 are located in the same row, and the third pixel unit The unit 43 and the fourth pixel unit 44 are located in another row, the first pixel unit 41 and the third pixel unit 43 are located in the same column, the second pixel unit 42 and the fourth pixel unit 44 are located in another column, and the sub-units in the first pixel unit 41 The pixel and the sub-pixel in the third pixel unit 43 are symmetrical with respect to the center line of the pixel repeating unit row direction, and...

Embodiment 3

[0078] In this example, if Figure 9 As shown, the pixel structure includes a plurality of pixel repeating units, and each pixel repeating unit includes four pixel units, and the four pixel units include a first pixel unit 41 (the part in the solid line frame), a second pixel unit 42 (the solid line frame Inner part), the third pixel unit 43 (the part in the solid line frame) and the fourth pixel unit 44 (the part in the solid line frame), wherein the first pixel unit 41 and the second pixel unit 42 are located in the same row, and the third pixel unit The unit 43 and the fourth pixel unit 44 are located in another row, the first pixel unit 41 and the third pixel unit 43 are located in the same column, the second pixel unit 42 and the fourth pixel unit 44 are located in another column, and the sub-units in the first pixel unit 41 The pixel and the sub-pixel in the second pixel unit 42 are symmetrical with respect to the center line in the column direction of the pixel repeatin...

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Abstract

The invention provides a pixel structure, a mask plate, and an OLED display substrate, and belongs to the technical field of display. The pixel structure comprises a plurality of pixel units. Each pixel unit comprises sub-pixels in three different colors. Light rays emitted by the sub-pixels in three different colors can be mixed to form white light. In the pixel structure, at least two sub-pixelsin the same color are adjacent in space. The technical scheme can increase an opening of a mask plate which is used to make the pixel structure, so aligning space of the mask plate is enlarged, process difficulty of making high PPI pixel structure is reduced, so that PPI of a display product is improved, yield of the display product is improved, and production cost is reduced.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a pixel structure, a mask plate and an OLED display substrate. Background technique [0002] In recent years, organic electroluminescence (Organic Light-Emitting Display, OLED) display technology is gradually developing and has a tendency to replace liquid crystal display (Liquid Crystal Display, LCD). This luminescent technology needs to evaporate the luminescent material to the effective display area through a high-precision mask. In order to obtain high resolution, it is necessary to increase the number of pixels per inch of the display device, that is, the pixel density (Pixels per inch, PPI). It is necessary to reduce the pixel size, and the smaller the pixel size, the more difficult the processing technology is, and with the continuous refinement of the process, the process improvement will reach the limit. Contents of the invention [0003] The technical problem to be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/56C23C14/04C23C14/24
CPCC23C14/042C23C14/24H10K59/353H10K71/166H10K71/00
Inventor 梅菊嵇凤丽何潘婷
Owner BOE TECH GRP CO LTD