IP Library Granted Patent US 10,705,371
Granted Patent B2
US 10,705,371 · App. 15/461,689 · Granted Jul 7, 2020

Color filter substrate, manufacturing method thereof, display panel, manufacturing method thereof and bright spot defect correction method thereof, and display apparatus

Inventor: Kenichi Minowa (Kikuchi, JP)
Assignee: Mitsubishi Electric Corporation
G02F1/133514G02F1/1309G02F1/133512G02F1/133516
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Quick Facts
Patent No.
US 10,705,371
App. No.
15/461,689
Granted
Jul 7, 2020
Kind
B2
Abstract

A color filter substrate includes: a transparent substrate; and a black matrix film, a color material film, and a repair color material film, which are formed on the substrate, wherein, in a display region, the repair color material film is formed on one of an upper surface and a lower surface of the black matrix film in at least a part overlapping the black matrix film in a plan view.

Claims (9)

1. A color filter substrate comprising:

a transparent substrate; and

a black matrix film, a first color material film, a second color material film, a third color material film, and a repair color material film, which are formed on the substrate, wherein

in a display region, the black matrix film includes a first portion disposed between the first and second color material films, and a second portion disposed between one of the first and second color material films and the third color material film,

the first color material film is formed to cover a first pixel opening,

the second color material film is formed to cover a second pixel opening,

the third color material film is formed to cover a third pixel opening and overlap with the second portion of the black matrix film in a plan view,

the repair color material film is formed to overlap with the first portion of the black matrix film in a plan view, and

a corn position of the repair color material film is the same composition as the third color material film.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2021
From: MITSUBISHI ELECTRIC CORPORATION
To: TRIVALE TECHNOLOGIES
Reel/Frame 057651/0234 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 17, 2017
From: MINOWA, KENICHI
To: MITSUBISHI ELECTRIC CORPORATION
Reel/Frame 041606/0508 →
Priority Claims (1)
JP 2016-067378 · Mar 30, 2016 · national
Continuity (1)
Related Publication 20170285395A1 · Oct 5, 2017