IP Library Granted Patent US 9,709,866
Granted Patent B1
US 9,709,866 · App. 15/085,591 · Granted Jul 18, 2017

Liquid crystal display device

Inventors: Tatsuhito Sakakibara (Hyogo, JP); Ryutaro Oke (Hyogo, JP); Daisuke Kajita (Hyogo, JP)
Assignee: Panasonic Liquid Crystal Display Co., Ltd.
G02F1/136286G02F1/134309G02F2001/134345
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Quick Facts
Patent No.
US 9,709,866
App. No.
15/085,591
Granted
Jul 18, 2017
Kind
B1
Abstract

A liquid crystal display is provided that includes a first substrate on a back surface side, a second substrate on a display surface side and a liquid crystal layer provided between the first and second substrates. The display also includes a plurality of sub-pixels including one or more green sub-pixels and one or more non-green sub-pixels. The first substrate includes first and second wirings provided at the boundary between adjacent sub-pixels. When a green sub-pixel is adjacent to a non-green sub-pixel, the first wiring is provided at a shifted position that is closer to the non-green sub-pixel than the green sub-pixel. Accordingly, when a non-green image is to be displayed, the display can reduce the amount of color mixing of light passing through a green color filter with the light passing through a non-green color filter, particularly when the display is viewed at oblique angles.

Claims (21)

1. A liquid crystal display, comprising:

a first substrate on a back surface side, the first substrate including a plurality of first wirings and a plurality of second wirings extending in a same direction; and

a second substrate on a display surface side, the first substrate and the second substrate being opposed to each other;

a liquid crystal layer provided between the first substrate and the second substrate;

a plurality of sub-pixels including one or more green sub-pixels and one or more non-green sub-pixels,

wherein a boundary between two adjacent sub-pixels of the plurality of sub-pixels is defined by a corresponding second wiring of the plurality of second wirings,

wherein a corresponding first wiring of the plurality of first wirings is provided at the boundary between the two adjacent sub-pixels,

wherein a first gap defines a shortest distance from a centerline, extending from the first substrate to the second substrate, of a corresponding first wiring separating a green sub-pixel and an adjacent non-green sub-pixel to a centerline, extending from the first substrate to the second substrate, of a corresponding second wiring separating the green sub-pixel and the adjacent non-green sub-pixel,

wherein a second gap defines a shortest distance from a centerline, extending from the first substrate to the second substrate, of a corresponding first wiring separating a first non-green sub-pixel and an adjacent second non-green sub-pixel to a centerline, extending from the first substrate to the second substrate, of a corresponding second wiring separating the first non-green sub-pixel and the adjacent second non-green sub-pixel,

wherein the first gap is greater than the second gap,

wherein the centerline of the corresponding first wiring separating the green sub-pixel and the adjacent non-green sub-pixel is closer to a centerline of the non-green sub-pixel than to a centerline of the adjacent green sub-pixel, and

wherein the plurality of first wirings are provided between the plurality of second wirings and the second substrate.

2. The liquid crystal display of claim 1 , wherein the plurality of non-green sub-pixels include a plurality of blue sub-pixels and a plurality of red sub-pixels.

3. The liquid crystal display of claim 1 , wherein the plurality of first wirings are a plurality of data lines and the plurality of second wirings are a plurality of common metal lines.

4. The liquid crystal display of claim 1 , wherein the plurality of first wirings are a plurality of common metal lines and the plurality of second wirings are a plurality of data lines.

5. The liquid crystal display of claim 1 , wherein, for each of the plurality of first wirings, a first wiring width defines a distance from a first end of the first wiring to a second end of the first wiring in a second direction extending from a first sub-pixel to a second sub-pixel and perpendicular to the direction extending from the first substrate to the second substrate,

wherein, for each of the plurality of second wirings, a second wiring width defines a distance from a first end of a second wiring to a second end of the second wiring in the second direction, and

wherein the first wiring width is equal to the second wiring width.

6. The liquid crystal display of claim 1 , wherein, for each of the plurality of first wirings, a first wiring width defines a distance from a first end of the first wiring to a second end of the first wiring in a second direction extending from a first sub-pixel to a second sub-pixel and perpendicular to the direction extending from the first substrate to the second substrate,

wherein, for each of the plurality of second wirings, a second wiring width defines a distance from a first end of a second wiring to a second end of the second wiring in the second direction, and

wherein the first wiring width is greater than the second wiring width.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2023
From: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
To: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Reel/Frame 064292/0775 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 15, 2016
From: SAKAKIBARA, TATSUHITO; OKE, RYUTARO; KAJITA, DAISUKE
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 038598/0041 →