IP Library › Granted Patent US 8,605,243
Granted Patent B2
US 8,605,243 · App. 13/038,549 · Granted Dec 10, 2013

Liquid crystal display device

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Quick Facts
Patent No.
US 8,605,243
App. No.
13/038,549
Filed
Mar 2, 2011
Granted
Dec 10, 2013
Kind
B2
Art Unit
2883
USPC
349/139
Abstract

A liquid crystal display device includes a pixel area surrounded and defined by a first drain line, a second drain line and a first gate line and a second drain line. The pixel area includes: a first pixel part having a plurality of line-like linear electrodes and extend in a first direction; a second pixel part having a plurality of line-like linear electrodes extend in a second direction; a boundary electrode that is formed in an area sandwiched between the first pixel part and the second pixel part, and has a side edge portion inclined in the first direction and a side edge portion inclined in the second direction; and a light-blocking film that is formed in superimposition on the boundary electrode, and has sides formed to extend along the side edge portions of the boundary electrode inclined in the first and second directions.

Claims (29)

1. A liquid crystal display device comprising:

a pixel area surrounded and defined by a first drain line, a second drain line, a first gate line, and a second gate line,

wherein the pixel area includes:

a first pixel part having a flat surface-like planar electrode, and a plurality of line-like linear electrodes that are formed in superimposition on the planar electrode via an insulating film and extend in a first direction;

a second pixel part having the planar electrode and a plurality of line-like linear electrodes that are formed in superimposition on the planar electrode via the insulating film and extend in a second direction;

a first boundary electrode that is formed at a side of the first drain line in an area sandwiched between the first pixel part and the second pixel part, and has a side edge portion inclined in the first direction and a side edge portion inclined in the second direction;

a second boundary electrode that is formed at a side of the second drain line in an area sandwiched between the first pixel part and the second pixel part, and has a side edge portion inclined in the first direction and a side edge portion inclined in the second direction,

a first light-blocking film, integrally formed with the first drain line, that is formed in superimposition on the first boundary electrode, and having sides formed to extend along the side edge portions of the first boundary electrode inclined in the first and second directions,

a second light-blocking film, integrally formed with the second drain line, that is formed in superimposition on the second boundary electrode, and having sides formed to extend along the side edge portions of the second boundary electrode inclined in the first and second directions, and

wherein the first light-blocking film and the second light-blocking film are insulated from each other.

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

wherein the first light-blocking film and the second light-blocking film have an equal area.

3. A liquid crystal display device comprising:

a liquid crystal display panel; and

a backlight source that illuminates a back surface of the liquid crystal display panel with a backlight ray, the liquid crystal display panel including:

a first substrate having a pixel area surrounded and defined by a first drain line, a second drain line and a first gate line and a second drain line;

a second substrate disposed to face the first substrate; and

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

wherein the pixel area includes:

a first pixel part having a flat surface-like planar electrode; and a plurality of line-like linear electrodes that are formed in superimposition on the planar electrode via an insulating film and extend in a first direction;

a second pixel part having the planar electrode and a plurality of line-like linear electrodes that are formed in superimposition on the planar electrode via the insulating film and extend in a second direction;

a first boundary electrode that is formed at a side of the first drain line in an area sandwiched between the first pixel part and the second pixel part, and has a side edge portion inclined in the first direction and a side edge portion inclined in the second direction,

a second boundary electrode that is formed at a side of the second drain line in an area sandwiched between the first pixel part and the second pixel part, and has a side edge portion inclined in the first direction and a side edge portion inclined in the second direction,

a first light-blocking film, integrally formed with the first drain line, that is formed in superimposition on the first boundary electrode, and has sides formed to extend along the side edge portions of the first boundary electrode inclined in the first and second directions,

a second light-blocking film, integrally formed with the first drain line, that is formed in superimposition on the second boundary electrode, and has sides formed to extend along the side edge portions of the second boundary electrode inclined in the first and second directions,

wherein the first light-blocking film and the second light-blocking film are insulated from each other, and

the first light-blocking film and the second light-blocking film blocking the backlight ray.

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

wherein the first light-blocking film and the second light-blocking film have an equal area.