Mask assembly and method for making mask assembly

Abstract

The invention discloses a mask plate assembly and a method for making the mask plate assembly. The mask plate assembly includes: a metal frame, the metal frame has a first working window; a metal plate, the metal plate and the metal frame are stacked, and the metal plate Connected with the metal frame, the part of the metal plate is opposite to the first operation window, the metal plate is provided with a second operation window, and the outer contour of the second operation window is located within the outer contour of the first operation window; fine metal mask plate, fine The metal mask plate is stacked with the metal plate and is located on the side of the metal plate away from the metal frame, and the fine metal mask plate is only connected with the metal frame to block the second working window. According to the mask plate assembly of the present invention, it is possible to improve the wrinkling of fine metal mask plates. In addition, it can improve the situation that the liquid medicine remains between the main body and the fine metal mask. In addition, it can improve the situation that the fluctuation of the metal plate drives the fine metal mask to cause wrinkles on the fine metal mask.

Description

technical field [0001] The invention relates to the field of display equipment processing, in particular to a mask plate assembly and a method for manufacturing the mask plate assembly. Background technique [0002] In related technologies, with the diversification of display device screens such as mobile phone screens, the shape of the display screen is no longer a regular rectangle, but many shapes, such as rounded corners of the AA (Active Area) area, and a grooved area on the upper border. This poses a great challenge to the traditional linear support covering structure plus FMM (Fine Metal Mask, fine metal mask plate). The pixel FMM openings in the AA area of ​​the traditional rectangular screen are also arranged in a traditional straight line, while the FMM openings of the pixels in the AA area of ​​the rounded screen or the screen with grooves are also irregular. , which will inevitably have an impact on the FMM stress distribution. If the FMM design openings are not...

AI Technical Summary

Problems solved by technology

The pixel FMM openings in the AA area of ​​the traditional rectangular screen are also arranged in a traditional straight line, while the FMM openings of the pixels in the AA area of ​​the rounded screen or the screen with grooves are also irregular. , which will definitely have an impact on the FMM stress distribution. If the FMM design openings are not required for the position where the evaporation material is required, the traditional covering structure and support structure are linear and cannot block the evaporation of the material at the chamfer.

[0003] In view of the above problems, FMM design openings at positions where evaporation materials are not needed, and replace the traditional covering structure with openings on the metal plate plus FMM. However, the traditional method of setting openings on the metal plate and FMM will have cleaning chemicals. Fluid residue and FMM welded on the metal plate, not on the frame, FMM is prone to wrinkles

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