IP Library Granted Patent US 10,741,135
Granted Patent B2
US 10,741,135 · App. 16/358,321 · Granted Aug 11, 2020

Liquid crystal display device

Inventors: Takahiro Sasaki (Sakai, JP); Hidefumi Yoshida (Sakai, JP); Kazutaka Hanaoka (Sakai, JP); Kimiaki Nakamura (Sakai, JP)
Assignee: SHARP KABUSHIKI KAISHA
G09G3/3607G02F1/1336G02F1/134309G09G3/3648G09G2310/0235
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Quick Facts
Patent No.
US 10,741,135
App. No.
16/358,321
Granted
Aug 11, 2020
Kind
B2
Abstract

A liquid crystal display device includes sub-pixel electrodes respectively provided to three sub-pixels, and an interelectrode connection portion that connects sub-pixel electrodes adjacent to each other among the sub-pixel electrodes. The interelectrode connection portion is provided in a position where boundaries of liquid crystal alignment directions of sub-pixels adjacent to each other are connected.

Claims (17)

1. A liquid crystal display device provided with a plurality of pixels, each of which is composed of divided three sub-pixels, the liquid crystal display device comprising:

sub-pixel electrodes respectively provided to the sub-pixels; and

an interelectrode connection portion that connects sub-pixel electrodes adjacent to each other among the sub-pixel electrodes,

wherein the interelectrode connection portion is provided in a position where boundaries of liquid crystal alignment directions of sub-pixels adjacent to each other are connected,

the three sub-pixels are formed by dividing one pixel into three sub-pixels by source signal lines,

a liquid crystal display panel having an active matrix substrate and a backlight device are included, and

color display is performed by causing the backlight device to emit light of at least red, green, and blue to an entire panel in time division manner and switching display of the liquid crystal display panel in synchronization with the emission of the light.

2. The liquid crystal display device according to claim 1 , wherein

the interelectrode connection portion is provided in a central portion of a long side of the sub-pixel.

3. The liquid crystal display device according to claim 1 , further comprising:

structures that control the liquid crystal alignment directions

wherein at least two structures are formed so as to straddle the sub-pixels adjacent to each other, and

the interelectrode connection portion is provided for each two structures and is provided so as to be overlapped with at least part of the structures corresponding to the interelectrode connection portion.

4. The liquid crystal display device according to claim 3 , wherein

the interelectrode connection portion is provided so that a center line of the interelectrode connection portion overlaps with a center line of corresponding structures.

5. The liquid crystal display device according to claim 3 , wherein

a branch extension portion extending along a long side direction of the sub-pixel electrode between the sub-pixel electrodes adjacent to each other is removed from the structure.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 19, 2019
From: SASAKI, TAKAHIRO; YOSHIDA, HIDEFUMI; HANAOKA, KAZUTAKA; NAKAMURA, KIMIAKI
To: SHARP KABUSHIKI KAISHA
Reel/Frame 048640/0572 →
Priority Claims (1)
JP 2018-057180 · Mar 23, 2018 · national
Continuity (1)
Related Publication 20190295482A1 · Sep 26, 2019