IP Library Granted Patent US 10,324,339
Granted Patent B2
US 10,324,339 · App. 15/991,013 · Granted Jun 18, 2019

Liquid crystal display

Inventor: Kazunori Okumoto (Tokyo, JP)
Assignee: Mitsubishi Electric Corporation
G02F1/134309G02F1/133512G02F1/133514G02F1/133528H01L27/1214G02F2001/133519G02F2001/134372G02F2201/121G02F2201/123
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Quick Facts
Patent No.
US 10,324,339
App. No.
15/991,013
Granted
Jun 18, 2019
Kind
B2
Abstract

Provided is a technique for correcting a yellow shift to white. A liquid crystal display includes the following: a color filter substrate including a black matrix provided with a plurality of openings, and coloring materials of a plurality of colors disposed in the respective plurality of openings; an upper electrode having a plurality of slits for each opening; and a lower electrode. The plurality of colors include blue and two or more different colors other than blue. With respect to a first distance being a distance between an end of a drive region and an end of the opening corresponding to the plurality of slits, the first distance corresponding to the blue coloring material is different from the first distance corresponding to each of the coloring materials of the different colors.

Claims (16)

1. A liquid crystal display comprising:

a color filter substrate comprising a black matrix provided with a plurality of openings, and coloring materials of a plurality of colors disposed in the respective plurality of openings;

a thin-film-transistor substrate comprising an upper electrode and a lower electrode disposed along the color filter substrate, the upper electrode having a plurality of slits for each opening, the lower electrode being disposed below the upper electrode; and

a liquid crystal layer disposed between the color filter substrate and the thin-film-transistor substrate,

wherein the plurality of colors comprises blue and two or more different colors other than blue, and

wherein with respect to a first distance being a distance between an end of a drive region in which a liquid crystal within the liquid crystal layer is driven by an electric field generated between the upper electrode and the lower electrode and an end of the opening corresponding to the plurality of slits of the upper electrode, the first distance corresponding to the blue coloring material is different from the first distance corresponding to each of the coloring materials of the different colors.

2. The liquid crystal display according to claim 1 , wherein with respect to a second distance being a distance between an outermost slit of the plurality of slits and the end of the opening corresponding to the plurality of slits, the second distance corresponding to the blue coloring material different from the second distance corresponding to each of the coloring materials of the different colors.

3. The liquid crystal display according to claim 1 , wherein with respect to a third distance being a distance between an end being on an outermost slit side of the plurality of slits, of the lower electrode, and the end of the opening corresponding to the plurality of slits, the third distance corresponding to the blue coloring material is different from the third distance corresponding to each of the coloring materials of the different colors.

4. The liquid crystal display according to claim 1 , wherein a width between the end of the opening in which the blue coloring material is disposed, and an end opposite the end is narrower than a width between the end of the opening in which each of the coloring materials of the different colors is disposed, and an end opposite the end.

5. The liquid crystal display according to claim 1 , wherein a width between the end of the opening in which the blue coloring material is disposed, and an end opposite the end is wider than a width between the end of the opening in which each of the coloring materials of the different colors is disposed, and an end opposite the end.

6. The liquid crystal display according to claim 1 , wherein at least one of shapes and the number of the plurality of slits in the blue coloring material is different from at least one of shapes and the number of the plurality of slits in each of the coloring materials of the different colors.

7. The liquid crystal display according to claim 1 , wherein the different colors comprises green.

8. The liquid crystal display according to claim 1 ,

wherein the color filter substrate further comprises an overcoat layer covering the black matrix and the coloring materials of the plurality of colors on a thin-film-transistor substrate side, and

wherein the overcoat layer has a thickness of 2 μm or more.

9. The liquid crystal display according to claim 8 , wherein the overcoat layer has a thickness of 5 μm or less.

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 May 29, 2018
From: OKUMOTO, KAZUNORI
To: MITSUBISHI ELECTRIC CORPORATION
Reel/Frame 045916/0995 →
Priority Claims (1)
JP 2017-112294 · Jun 7, 2017 · national
Continuity (1)
Related Publication 20180356692A1 · Dec 13, 2018