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Pixel structure, display substrate, mask and evaporation method

A technology of pixel structure and mask, which is applied in the fields of mask and evaporation, display substrate and pixel structure, and can solve the problems of color mixing of adjacent sub-pixels, etc.

Active Publication Date: 2021-11-02
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a pixel structure, a display substrate, a mask and an evaporation method to solve the problem of color mixing in adjacent sub-pixels in the pixel structure obtained by evaporation in the prior art

Method used

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  • Pixel structure, display substrate, mask and evaporation method
  • Pixel structure, display substrate, mask and evaporation method
  • Pixel structure, display substrate, mask and evaporation method

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Embodiment Construction

[0040] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0041] When the OLED display device is manufactured, the pixel structure is usually prepared by an evaporation process, and corresponding red sub-pixels, green sub-pixels and blue sub-pixels are formed by evaporation on the substrate. like figure 1 As shown, the evaporation motherboard 1 includes a plurality of display screen units 11, the evaporation motherboard 1 includes a substrate a...

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Abstract

The invention provides a pixel structure, a display substrate, a mask plate and an evaporation method, which are applied in the field of display technology. The pixel structure includes a plurality of first sub-pixels, and the maximum size of the first sub-pixels in the first direction is smaller than the first The setting value, the maximum size in the second direction is greater than the second setting value, wherein the first setting value is the maximum size of the sub-pixel in the first direction, and the second setting value is the Sets the maximum size of the subpixel in the second direction. The opening area of ​​the first sub-pixel is equal to the opening area of ​​the set sub-pixel. The first direction is the row direction in which the sub-pixels are arranged, and the second direction is the column direction in which the sub-pixels are arranged. The above pixel structure can reduce the risk of color mixing in the evaporation process and improve the display quality of the display device.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a pixel structure, a display substrate, a mask plate and an evaporation method. Background technique [0002] During fabrication of an OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) display device, the evaporation material is generally evaporated onto the substrate through a mask plate by vacuum evaporation to form sub-pixels. [0003] During the evaporation process, due to the existence of the evaporation shadow (shadow), the evaporation material evaporated on the adjacent sub-pixel regions on the substrate overlaps, causing color mixing problems in adjacent sub-pixels, which affects the performance of the display device. display effect. Contents of the invention [0004] The invention provides a pixel structure, a display substrate, a mask plate and an evaporation method to solve the problem of color mixing of adjacent sub-pixels in the pixel structure ob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/00H01L51/56C23C14/04
CPCC23C14/042H10K59/353H10K71/166H10K71/00H10K59/352H10K59/122
Inventor 谢毅何信儒
Owner BOE TECH GRP CO LTD
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