IP Library Granted Patent US 11,550,191
Granted Patent B2
US 11,550,191 · App. 16/586,169 · Granted Jan 10, 2023

Display device

Inventors: Yoshihiro Sakurai (Kanagawa, JP); Hironao Tanaka (Kanagawa, JP); Hidemasa Yamaguchi (Kanagawa, JP)
Assignee: Japan Display Inc.
G02F1/134363G02F1/1337G02F1/1368G02F1/13306G02F1/133707G02F1/136286G02F1/13373G02F1/134381G02F1/136227G02F2201/122G02F2201/123G02F2201/128
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Quick Facts
Patent No.
US 11,550,191
App. No.
16/586,169
Granted
Jan 10, 2023
Kind
B2
Abstract

A display device is provided and includes first and second substrates; a liquid crystal layer filled between the first and second substrates; a counter electrode pattern formed on the first substrate; scanning lines extending in a first direction; signal lines; and a first pixel electrode pattern and a second pixel electrode pattern formed on the first substrate, wherein the first pixel electrode pattern and the second pixel electrode pattern are located in line symmetry with respect to a first scanning line of the scanning lines.

Claims (25)

1. A display device comprising:

first and second substrates arranged to be opposite each other at a predetermined gap;

a liquid crystal layer filled between the first and second substrates;

a counter electrode pattern formed on the first substrate;

scanning lines to which control pulses for providing write timing of a signal potential are applied, the scanning lines each extending in a first direction, and the scanning lines including a first scanning line and a second scanning line;

signal lines to which the signal potential is applied; and

a first pixel electrode pattern and a second pixel electrode pattern formed on the first substrate,

wherein

the first pixel electrode pattern and the second pixel electrode pattern each include:

a plurality of elongated electrode branches having lengths greater than widths and formed in a pixel region surrounded by the scanning lines and signal lines, elongated electrode branches each being inclined with respect to a second direction perpendicular to the first direction; and

a plurality of elongated slits having lengths greater than widths and formed between the electrode branches in a lengthwise extending direction of the electrode branches, the elongated slits each having a first end and a second end in the lengthwise extending direction, and the elongated slits including an outermost elongated slit,

the first pixel electrode pattern, which is inclined in a counterclockwise direction with respect to the second direction, and the second pixel electrode pattern, which is inclined in a clockwise direction with respect to the second direction, have a vertical mirror structure with respect to the first scanning line,

the first scanning line is overlapped by the first end of the outermost elongated slit that is inclined in the counterclockwise direction with respect to the second direction, in the first pixel electrode pattern and

the second scanning line is overlapped by the first end of the outermost elongated slit inclined in the clockwise direction with respect to the second direction, in the second pixel electrode pattern.

2. The display device according to claim 1 ,

wherein the first and second pixel electrode patterns and the counter electrode pattern are formed on the same layer surface.

3. The display device according to claim 1 ,

wherein the first and second pixel electrode patterns and the counter electrode pattern are formed on different layer surfaces.

4. The display device according to claim 1 , wherein

the first pixel electrode pattern and the second pixel electrode pattern respectively include a shorter elongated slit that is shorter than the outermost elongated slit,

the outermost elongated slit is closer to the signal lines than the shorter elongated slit.

5. The display device according to claim 1 , wherein

the first pixel electrode pattern and the second pixel electrode pattern each include a shorter elongated slit that is shorter than the outermost elongated slit,

the first scanning line is overlapped by the first end of the shorter elongated slit that is inclined in the counterclockwise direction with respect to the second direction, in the first pixel electrode pattern, and

the second scanning line is overlapped by the first end of the shorter elongated slit that is inclined in the clockwise direction with respect to the second direction, in the second pixel electrode pattern.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 13, 2022
From: SAKURAI, YOSHIHIRO; TANAKA, HIRONAO; YAMAGUCHI, HIDEMASA
To: SONY CORPORATION
Reel/Frame 062068/0517 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 13, 2022
From: SONY CORPORATION
To: JAPAN DISPLAY WEST INC.
Reel/Frame 062068/0571 →
CHANGE OF NAME Recorded Dec 13, 2022
From: JAPAN DISPLAY WEST INC.
To: JAPAN DISPLAY INC.
Reel/Frame 062117/0001 →
Priority Claims (1)
JP 2008-324779 · Dec 19, 2008 · national
Continuity (4)
Continuation 15387141 · Dec 21, 2016
Continuation 14919047 · Oct 21, 2015
Continuation 12642312 · Dec 18, 2009
Related Publication 20200026132A1 · Jan 23, 2020