Curved liquid crystal display device and color filter substrate for the same

Patent metadata

Field	Value
Publication number	US-10168458-B2
Application number	US-201514706155-A
Country	US
Kind code	B2
Filing date	May 7, 2015
Priority date	Jun 13, 2014
Publication date	Jan 1, 2019
Grant date	Jan 1, 2019

Abstract

A curved liquid crystal display device includes first and second substrates facing each other and including a central region and a peripheral region; a plurality of data lines disposed on the first substrate and being spaced apart from each other by the same distance; a plurality of gate lines disposed on the first substrate and crossing the plurality of data lines; a pixel electrode disposed on the first substrate; a common electrode on the first substrate or the second substrate; a plurality of black matrixes disposed on the second substrate, a distance between adjacent black matrixes in the central region being smaller than a distance between adjacent black matrixes in the peripheral region; and a liquid crystal layer disposed between the first and second substrates.

First claim

What is claimed is:

1. A curved liquid crystal display device, comprising:
first and second substrates facing each other and including a central region and a first peripheral region;
a plurality of data lines disposed on the first substrate and being spaced apart from each other, wherein a distance between adjacent data lines in the central region is the same as a distance between adjacent data lines in the first peripheral region;
a plurality of gate lines disposed on the first substrate and crossing the plurality of data lines;
a pixel electrode disposed on the first substrate;
a common electrode on the first substrate or the second substrate;
a black matrix disposed on the second substrate and including first black matrixes in the central region and second black matrixes in the first peripheral region; and
a liquid crystal layer disposed between the first and second substrates,
wherein the first black matrixes are spaced apart from each other by a first distance, and the second black matrixes are spaced apart from each other by a second distance being smaller than the first distance,
wherein the first and second substrates further include a second peripheral region between the central region and the first peripheral region, and the black matrix further includes third black matrixes in the second peripheral region, and
wherein the third black matrixes are spaced apart from each other by a third distance being smaller than the first distance and larger than the second distance.

2. The curved liquid crystal display device according to claim 1 , further comprising:
first to third color filters on the second substrate and in the central region and the first and second peripheral regions, respectively, wherein the third color filter has a width being smaller than the first color filter and being larger than the second color filter.

3. The curved liquid crystal display device according to claim 1 , further comprising:
first and second color filters on the second substrate and in the central region and the first peripheral region, respectively, wherein the second color filter has a width being smaller than the first color filter.

4. A color filter substrate for a curved liquid crystal display device, comprising:
a substrate including a central region and a first peripheral region;
first black matrixes in the central region and spaced apart from each other by a first distance along a major axis of the substrate;
second black matrixes in the first peripheral region and spaced apart from each other by a second distance, which is smaller than the first distance, along the major axis of the substrate;
third black matrixes in a second peripheral region between the central region and the first peripheral region,
wherein the third black matrixes are spaced apart from each other by a third distance being smaller than the first distance and larger than the second distance; and
a color filter layer between the first and second black matrixes.

5. A curved display device, comprising:
first and second substrates facing each other and including a central region and a first peripheral region;
a plurality of gate lines and data lines on the first substrate;
first black matrixes in the central region and having a first distance between the first black matrixes; and
second black matrixes in the first peripheral region and having a second distance between the second black matrixes,
wherein the first distance is larger than the second distance, and
wherein a distance between adjacent data lines in the central region is the same as a distance between adjacent data lines in the first peripheral region;
a second peripheral region between the central region and the first peripheral region; and
third black matrixes in the second peripheral region and having a third distance between the third black matrixes,
wherein the third distance is smaller than the first distance and larger than the second distance.

6. The curved display device of claim 5 , further comprising:
a first color filter in the central region and having a first width;
a second color filter in the first peripheral region and having a second width; and
a third color filter in the second peripheral region and having a third width,
wherein the third width is smaller than the first width and larger than the second width.

7. The curved display device of claim 5 , further comprising:
a first arc length of the second substrate; and
a second arc length of the first substrate,
wherein the first and second black matrixes are shifted by a half of a difference between the first and second arc length.

8. The curved display device of claim 7 , further comprising a shift range of the first and second black matrixes configured to maximize in a ¼ and ¾ point.

Assignees

• Lg Display Co Ltd

Inventors

• Kong In-Yeong
• Kim Do-Sung
• Chae Hee-Young
• Park Se-Hong
• Park Jong-Sin
• Pyun Ja-Young
• Lee Dong-Yoon
• Youn Jae-Woong

Classifications

• G02F1/136286

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

• G02B5/201 Primary

  in the form of arrays · CPC title

• G02F1/133512 Primary

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

• G02F2201/40

  Arrangements for improving the aperture ratio · CPC title

• G02F1/133514

  Colour filters · CPC title