Title:
DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2020031064
Kind Code:
A
Abstract:
To solve the problem of failures due to accuracy of a mask used for evaporation and wrapping by microfabrication of a pixel region accompanying elevated fineness and enlargement of a substrate accompanying enlargement of an area.SOLUTION: An interference wall having a part of which a film thickness is different on a pixel electrode (called as a first electrode) in a display region and in a circumference of a pixel electrode layer, without increasing steps by using a photo mask in which an assistance pattern having an optical intensity reduction function formed by a diffraction grating pattern or a semi-permeable membrane or a reticle.SELECTED DRAWING: Figure 1
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Inventors:
KUWABARA HIDEAKI
ONUMA HIDETO
ONUMA HIDETO
Application Number:
JP2019206688A
Publication Date:
February 27, 2020
Filing Date:
November 15, 2019
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB CO LTD
International Classes:
H05B33/22; G09F9/30; H01L27/32; H01L51/50; H05B33/02; H05B33/12; H05B44/00
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