Liquid crystal display with reduced color mixing

Patent metadata

Field	Value
Publication number	US-9846327-B2
Application number	US-201414155128-A
Country	US
Kind code	B2
Filing date	Jan 14, 2014
Priority date	Jan 25, 2013
Publication date	Dec 19, 2017
Grant date	Dec 19, 2017

Abstract

A liquid crystal display includes a first pixel, a second pixel, and a third pixel each displaying a different color. A first data line is positioned between the first pixel and the second pixel, and a second data line is positioned between the second pixel and the third pixel. A first pixel electrode, a second pixel electrode, and a third pixel electrode are respectively positioned in the first, second, and third pixels. An interval between the first pixel electrode and the first data line is larger than an interval between the second pixel electrode and the first data line. An interval between the second pixel electrode and the second data line is smaller than an interval between the third pixel electrode and the second data line.

First claim

What is claimed is:

1. A liquid crystal display comprising:
a first pixel, a second pixel, and a third pixel, each displaying a different color;
a first data line positioned between the first pixel and the second pixel and a second data line positioned between the second pixel and the third pixel;
a first pixel electrode, a second pixel electrode, and a third pixel electrode, respectively positioned in the first, second, and third pixels; and
a light blocking member comprising a first portion overlapping the first data line and a second portion overlapping the second data line,
wherein the first data line is an only data line positioned between the first pixel and the second pixel and the second data line is an only data line positioned between the second pixel and the third pixel,
an interval between the first pixel electrode and the first data line is larger than an interval between the second pixel electrode and the first data line,
an interval between the second pixel electrode and the second data line is smaller than an interval between the third pixel electrode and the second data line,
a width of the first portion of the light blocking member is substantially equal to a width of the second portion of the light blocking member,
each of the first, second, and third pixel electrodes includes a plurality of branch electrodes,
a width of the plurality of branch electrodes in the first pixel electrode is substantially equal to a width of the plurality of branch electrodes in the second pixel electrode, and an interval between the plurality of branch electrodes in the first pixel electrode is substantially equal to an interval between the plurality of branch electrodes in the second pixel electrode,
the width of the plurality of branch electrodes in the second pixel electrode is substantially equal to a width of the plurality of branch electrodes in the third pixel electrode, and the interval between the plurality of branch electrodes in the second pixel electrode is substantially equal to an interval between the plurality of branch electrodes in the third pixel electrode, and
the liquid crystal display further comprising:
a first light blocking member overlapping the first data line and disposed close to the first pixel with respect to a longitudinal center line of the first data line;
a second light blocking member overlapping the first data line and the second data line and disposed close to the second pixel with respect to the longitudinal center line of the first data line and a longitudinal center line of the second data line; and
a third light blocking member overlapping the second data line and disposed close to the third pixel with respect to the longitudinal center line of the second data line, wherein
a width of the first light blocking member overlapping the first data line is smaller than a width of the second light blocking member overlapping the first data line, and
a width of the second light blocking member overlapping the second data line is larger than a width of the third light blocking member overlapping the second data line.

2. The liquid crystal display of claim 1 , further comprising:
a third data line positioned between the third pixel and a fourth pixel close to the third pixel;
the third light blocking member overlapping the third data line and disposed close to the third pixel with respect to a longitudinal center line of the third data line; and
a fourth light blocking member overlapping the third data line and disposed close to the fourth pixel with respect to the longitudinal center line of the third data line,
wherein a width of the third light blocking member overlapping the third data line is substantially equal to a width of the fourth light blocking member overlapping the third data line.

3. The liquid crystal display of claim 2 , wherein
a width of the first light blocking member and the second light blocking member overlapping the first data line is substantially equal to a width of the second light blocking member and the third light blocking member overlapping the second data line, and
the width of the first light blocking member and the second light blocking member overlapping the first data line is substantially equal to the width of a third light blocking member and the fourth light blocking member overlapping the third data line.

4. The liquid crystal display of claim 2 , wherein
a width of the first light blocking member and the second light blocking member overlapping the first data line is substantially equal to a width of the second light blocking member and the third light blocking member overlapping the second data line, and
the width of the first light blocking member and the second light blocking member overlapping the first data line is larger than a width of the third light blocking member and the fourth light blocking member overlapping the third data line.

5. A liquid crystal display comprising:
a first pixel, a second pixel, and a third pixel, each displaying a different color;
a first data line positioned between the first pixel and the second pixel and a second data line positioned between the second pixel and the third pixel;
a first pixel electrode, a second pixel electrode, and a third pixel electrode, respectively positioned in the first, second, and third pixels; and
a light blocking member comprising a first portion overlapping the first data line and a second portion overlapping the second data line,
wherein the first data line is an only data line positioned between the first pixel and the second pixel and the second data line is an only data line positioned between the second pixel and the third pixel,
an interval between the first pixel electrode and the first data line is larger than an interval between the second pixel electrode and the first data line,
an interval between the second pixel electrode and the second data line is smaller than an interval between the third pixel electrode and the second data line,
a width of the first portion of the light blocking member is substantially equal to a width of the second portion of the light blocking member, and
the liquid crystal display further comprising:
a first light blocking member overlapping the first data line and disposed close to the first pixel with respect to a longitudinal center line of the first data line;
a second light blocking member overlapping the first data line and the second data line and disposed close to the second pixel with respect to the longitudinal center line of the first data line and a longitudinal center line of the second data line; and
a third light blocking member overlapping the second data line and disposed close to the third pixel with respect to the longitudinal center line of the second data line, wherein
a width of the first light blocking member overlapping the first data line is smaller than a width of the second light blocking member overlapping the first data line, and
a width of the second light blocking member overlapping the second data line is larger than a width of the third light blocking member overlapping the second data line.

6. The liquid crystal display of claim 5 , further comprising:
a third data line positioned between the third pixel and a fourth pixel close to the third pixel;
the third light blocking member overlapping the third data line and disposed close to the third pixel with respect to a longitudinal center line of the third data line; and
a fourth light blocking member overlapping the third data line and disposed close to the fourth pixel with respect to the longitudinal center line of the third data line,
wherein a width of the third light blocking member overlapping the third data line is substantially equal to a width of the fourth light blocking member over

Assignees

• Samsung Display Co Ltd

Inventors

• Huh Soo Jeong
• Kim Dong Wook
• Hong Sung Jin

Classifications

• G02F1/134363 Primary

  for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS] · CPC title

• G02F1/133512 Primary

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title

• G02F1/1343 Primary

  Electrodes {(reflective electrodes G02F1/133553)} · CPC title