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Patent Searching and Data


Title:
DISPLAY DEVICE AND PREPARATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/244100
Kind Code:
A1
Abstract:
The present invention relates to a display device and a preparation method thereof. A black matrix layer is directly disposed on a second metal layer so as to reduce the distance between the black matrix layer and a light emission layer, thereby avoiding light loss and improving light transmittance. The black matrix layer can shield the second metal layer, so as to prevent the high reflectivity of the second metal layer from impacting user experience. The black matrix layer replaces the PR mask in the prior art used for etching and filling a recess of a color resist material on the second metal layer, thereby eliminating an exposure and stripping process while still ensuring low reflectivity and high transmittance of the display device, and reducing manufacturing costs.

Inventors:
HUANG XIAOWEN (CN)
Application Number:
CN2019/106975
Publication Date:
December 10, 2020
Filing Date:
September 20, 2019
Export Citation:
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Assignee:
WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)
International Classes:
H01L51/52
Domestic Patent References:
WO2017117827A12017-07-13
Foreign References:
CN109599425A2019-04-09
CN109599420A2019-04-09
CN107516664A2017-12-26
CN201796351U2011-04-13
Attorney, Agent or Firm:
ESSEN PATENT & TRADEMARK AGENCY (CN)
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