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Mask plate and pixel structure

A mask and mask technology, which is applied in the field of mask and pixel structure, can solve the problems of difficult mask making and easy wrinkling, so as to reduce the difficulty of preparation process, reduce the probability of wrinkles, and reduce the risk of color mixing The effect of probability

Active Publication Date: 2019-12-17
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present application provides a mask and a pixel structure to solve the problem that the mask is difficult to make and easy to wrinkle

Method used

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  • Mask plate and pixel structure
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Embodiment Construction

[0030] Specific structural and functional details disclosed herein are representative only and are for purposes of describing example embodiments of the present application. This application may, however, be embodied in many alternative forms and should not be construed as limited to only the embodiments set forth herein.

[0031] In the description of this application, it should be understood that the terms "central", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the application. In addition...

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Abstract

The invention discloses a mask plate and a pixel structure. The mask plate includes a mask opening for making sub-pixel in a pixel opening of a display panel, the area of the mask opening is greater than that of the corresponding pixel opening, the pixel opening includes one or more inward concave curved edges, the mask opening includes one or more mask edges, the one or more mask edges correspondto the one or more curved edges, and the curvature of each mask edge is less than that of the corresponding curved edge. According to the mask plate disclosed by the invention, the mask opening is enlarged in non-equal proportion relative to the corresponding pixel opening, the sizes of the mask opening at different positions of the mask plate can be adjusted within a process allowance, the situation that the mask edges of the mask opening are made into the inward concave curved edges is avoided, the preparation technology difficulty of the mask opening of the mask plate is reduced, and thusthe prepared mask plate with the pixel structure of the curved edges can be mass-produced.

Description

technical field [0001] The present application relates to the field of display panel preparation, in particular to a mask and a pixel structure. Background technique [0002] Currently, an OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) display screen adopts a vacuum evaporation technology to prepare an organic light-emitting layer. In the device manufacturing process, organic materials are deposited on the substrate above the evaporation source by high-temperature evaporation. In order to evaporate organic materials to specific positions according to the design, it is necessary to use a high-precision metal mask (Fine Metal Mask, FMM), there are pre-designed openings on the FMM, and organic materials are deposited on the backplane through the openings to form pixels with preset patterns. [0003] As the resolution and brightness requirements of OLED displays are getting higher and higher, the pixel structure design with high aperture ratio and high pixel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/04C23C14/12C23C14/24H01L51/56
CPCC23C14/042C23C14/12C23C14/24H10K71/166B05C17/06B05C21/005H10K71/00
Inventor 刘志乔
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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