Mask plate and mask plate assembly
A mask plate and component technology, which is applied in metal material coating process, vacuum evaporation coating, coating, etc., can solve the problems affecting the evaporation accuracy and the position deviation of the opening, so as to improve the evaporation accuracy and prevent The effect of shifting
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[0059] The inventor of the present application discovered in the actual work process that when the mask is placed on the frame by clamping jaws and the mask is welded to the frame by laser welding, stress will be formed inside the mask. The stress is concentrated in some areas of the mask, for example, when the alignment holes are located, these areas will be wrinkled. In the subsequent evaporation and alignment process, the magnetic adsorption will expand the above-mentioned wrinkles and reduce the above-mentioned wrinkles. Extending to the opening area of the mask causes the position of the opening area to be shifted, reducing the position accuracy of vapor deposition (PAA), and then causing the pixels of the vapor-deposited OLED device to shift, which affects the normal display of the OLED device.
[0060] In view of the foregoing technical problems, embodiments of the present invention provide a mask and a mask assembly. By providing a barrier groove on the mask, when the wr...
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