IP Library Granted Patent US 9,400,409
Granted Patent B2
US 9,400,409 · App. 13/669,867 · Granted Jul 26, 2016

Liquid crystal display

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Quick Facts
Patent No.
US 9,400,409
App. No.
13/669,867
Granted
Jul 26, 2016
Kind
B2
Abstract

According to one embodiment, a display includes a first substrate including a scan line, a signal line, a pixel electrode including first electrodes extending substantially parallel to the signal line, a common electrode including second electrodes extending parallel to the first electrode between the first electrodes and arranged with a predetermined space between each second electrode and the adjacent first electrode, and a shielding portion at least arranged between the signal line and the first electrode arranged near the signal line, a second substrate including a light shielding layer having a width identical to a width of the shielding portion and arranged opposite the signal line, in a direction substantially orthogonal to the signal line, and a liquid crystal layer.

Claims (18)

1. A liquid crystal display comprising:

a first substrate comprising a scan line, a signal line intersecting the scan line, a pixel electrode including a plurality of comb pixel electrodes extending in a direction in which the signal line extends and arranged in a direction in which the scan line extends, a common electrode including a plurality of comb common electrodes extending between the plurality of comb pixel electrodes in a direction in which the signal line extends and arranged with a predetermined space between each comb common electrode and the adjacent comb pixel electrode, and a light shielding portion at least arranged between the signal line and a comb pixel electrode arranged neighboring the signal line in the direction in which the scan line extends;

a second substrate comprising a light shielding layer having a width identical to a width of the light shielding portion and arranged opposite the signal line, in a direction substantially orthogonal to a direction in which the signal line extends; and

a liquid crystal layer held between the first substrate and the second substrate,

wherein

the light shielding portion is a different layer than the comb common electrodes, and overlaps with both a comb common electrode and the signal line,

the light shielding portion is formed in a layer under the comb common electrodes and the signal line,

both ends of the light shielding portion are positioned between the comb common electrode and the comb pixel electrode, and

the light shielding portion and the comb common electrode are connected to each other by a contact hole.

2. The liquid crystal display according to claim 1 , wherein the signal line, the comb pixel electrode, and the comb common electrode are all extend in a direction which intersects the scan line, so as to be bent.

3. The liquid crystal display according to claim 1 , wherein a voltage identical to a voltage applied to the common electrode is applied to the light shielding portion.

4. The liquid crystal display according to claim 2 , wherein a voltage identical to a voltage applied to the common electrode is applied to the light shielding portion.

5. The liquid crystal display according to claim 1 , wherein each of the first substrate and the second substrate comprises an alignment film arranged on a surface of the substrate which contacts the liquid crystal layer and subjected to a process for alignment in a predetermined direction, and

the alignment film of the first substrate is subjected to the process for alignment in a direction which intersects the ends of the light shielding portion.

6. The liquid crystal display according to claim 2 , wherein each of the first substrate and the second substrate comprises an alignment film arranged on a surface of the substrate which contacts the liquid crystal layer and subjected to a process for alignment in a predetermined direction, and

the alignment film of the first substrate is subjected to the process for alignment in a direction which intersects the ends of the light shielding portion.

7. The liquid crystal display according to claim 3 , wherein each of the first substrate and the second substrate comprises an alignment film arranged on a surface of the substrate which contacts the liquid crystal layer and subjected to a process for alignment in a predetermined direction, and

the alignment film of the first substrate is subjected to the process for alignment in a direction which intersects the ends of the light shielding portion.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
MERGER Recorded Aug 12, 2015
From: JAPAN DISPLAY CENTRAL INC.
To: JAPAN DISPLAY INC.
Reel/Frame 036334/0757 →
CORPORATE ADDRESS CHANGE Recorded Aug 12, 2015
From: JAPAN DISPLAY INC.
To: JAPAN DISPLAY INC.
Reel/Frame 036335/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 6, 2012
From: ARAKI, SHIGESUMI; MAEDA, NORIHISA; WAKIMOTO, TATSUYA; NISHIYAMA, KAZUHIRO
To: JAPAN DISPLAY CENTRAL INC.
Reel/Frame 029250/0074 →