IP Library Granted Patent US 9,841,638
Granted Patent B2
US 9,841,638 · App. 15/244,751 · Granted Dec 12, 2017

Liquid crystal display device

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Quick Facts
Patent No.
US 9,841,638
App. No.
15/244,751
Granted
Dec 12, 2017
Kind
B2
Abstract

A liquid crystal display device having 2-pixel multi-domain type pixels, in which columnar spacers are disposed in optimal positions. Each of plural video lines has a first portion in which an acute-angled crossing angle of two crossing angles crossing each of scanning lines becomes a positive angle in a clockwise direction from each of the scanning lines, and a second portion in which an acute-angled crossing angle of the two crossing angles crossing each of scanning lines becomes a negative angle in the clockwise direction from each of the scanning lines. The first and second portions are alternately disposed so as to hold the scanning line between them.

Claims (27)

1. A liquid crystal display device comprising:

a first substrate;

a second substrate; and

a plurality of pixels,

wherein each pixel of the plurality of pixels comprises a red sub pixel, a green sub pixel, and a blue sub pixel,

the first substrate has:

a plurality of scanning lines extending in a first direction;

a plurality of video lines; and

a plurality of crossing regions where each of the scanning lines cross each of the video lines,

the plurality of scanning lines are arranged in parallel along a second direction,

the video lines between the scanning lines extend linearly with an inclination with respect to a second direction, the direction of inclination of the video lines is different between adjacent scanning lines,

the second substrate has a plurality of spacers, each of the spacers comprise a main spacer and a sub spacer,

the main spacers and some of the sub spacers are arranged on the crossing regions between the red sub pixel and the blue sub pixel,

the other sub spacers are arranged on the crossing regions between the red sub pixel and green sub pixel, or on the crossing regions between the green sub pixel and the blue sub pixel.

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

a height of the main spacers is greater than that of the sub spacers,

the sub spacers have a first sub spacer, second sub spacer, and third sub spacer,

the first sub spacers are arranged on the crossing regions between the red sub pixel and the blue sub pixel,

the second sub spacers are arranged on the crossing regions between the green sub pixel and the blue sub pixel, and

the third sub spacers are arranged on the crossing regions between the red sub pixel and the green sub pixel.

3. The liquid crystal display device according to claim 2 , wherein the second sub spacers are arranged on the crossing regions of the odd-numbered rows of the scanning lines, the third sub spacer is arranged on the crossing regions of the even rows of the scanning lines.

4. The liquid crystal display device according to claim 1 , wherein all main spacers and sub spacers are arranged on the center of the crossing region.

5. The liquid crystal display device according to claim 1 , wherein all main spacers and sub spacers are arranged in a straight line along the second direction.

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

the first sub spacer are arranged at a position shifted in the first direction from a center of the crossing region, and the second and third sub spacers are arranged at the center of the crossing region.

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

the third sub spacer are arranged at the center of the crossing region, and the first and second sub spacers are arranged at a position shifted in the first direction from a center of the crossing region.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →