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

Patent metadata

Field	Value
Publication number	US-10935706-B2
Application number	US-201816195605-A
Country	US
Kind code	B2
Filing date	Nov 19, 2018
Priority date	Jun 13, 2014
Publication date	Mar 2, 2021
Grant date	Mar 2, 2021

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, a first peripheral region and a second peripheral region at an outer side of the first peripheral region;
a plurality of data lines disposed on the first substrate and being spaced apart from each other by a first 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 black matrix disposed on the second substrate and including first black matrixes in the central region, second black matrixes in the first peripheral region and third black matrixes in the second 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 second distance, and the second black matrixes are spaced apart from each other by a third distance being smaller than the second distance,
wherein the third black matrixes are spaced apart from each other by 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 and a distance between adjacent data lines in the second peripheral region.

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 first color filter has a width being substantially equal to the third color filter and being larger than the second color filter.

3. The curved liquid crystal display device according to claim 2 , wherein a pixel region is defined by cross of the gate and data lines, and
wherein the width of the first and third color filters is substantially equal to a width of the pixel region, and the width of the second color filter is smaller than the width of the pixel region.

4. The curved liquid crystal display device according to claim 1 , further comprising:
a thin film transistor on the first substrate,
wherein the pixel electrode is connected to the thin film transistor.

5. A curved liquid crystal display device, comprising:
first and second substrates facing each other and including a central region, a first peripheral region and a second peripheral region at an outer side of the first peripheral region;
a plurality of data lines disposed on the first substrate and being spaced apart from each other by a first 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 black matrix disposed on the second substrate and including first black matrixes in the central region, second black matrixes in the first peripheral region and third black matrixes in the second 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 second distance, and the second black matrixes are spaced apart from each other by a third distance being smaller than the second distance, and
wherein the third black matrixes are spaced apart from each other by the second distance, wherein a plurality of pixel regions are defined by cross of the plurality of data lines and the plurality of gate lines, and
wherein the pixel regions in the central region, the first peripheral region and the second peripheral region have the same width.

6. A curved liquid crystal display device, comprising:
first and second substrates facing each other and including a central region, a first peripheral region and a second peripheral region at an outer side of the first peripheral region;
a plurality of gate lines disposed on the first substrate;
a plurality of data 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 corresponding to the plurality of data lines;
a color filter layer disposed on the second substrate and including a first color filter in the central region, a second color filter in the first peripheral region and a third color filter in the second peripheral region; and
a liquid crystal layer disposed between the first and second substrates,
wherein a first width of the first color filter is larger than a second width of the second color filter, and the third color filter has the first width,
wherein a plurality of pixel regions are defined by cross of the plurality of data lines and the plurality of gate lines, and
wherein the pixel regions in the central region, the first peripheral region and the second peripheral region have the same width.

7. The curved liquid crystal display device according to claim 6 , further comprising:
a thin film transistor on the first substrate,
wherein the pixel electrode is connected to the thin film transistor.

8. A curved liquid crystal display device, comprising:
first and second substrates facing each other and including a central region, a first peripheral region and a second peripheral region at an outer side of the first peripheral region;
a plurality of data lines disposed on the first substrate and being spaced apart from each other by a first 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 black matrix disposed on the second substrate and including first black matrixes in the central region, second black matrixes in the first peripheral region and third black matrixes in the second peripheral region;
first to third color filters on the second substrate and in the central region and the first and second peripheral regions, respectively, wherein the first color filter has a width being substantially equal to the third color filter and being larger than the second color filter; 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 second distance, and the second black matrixes are spaced apart from each other by a third distance being smaller than the second distance,
wherein the third black matrixes are spaced apart from each other by the second distance,
wherein a pixel region is defined by cross of the gate and data lines, and
wherein the width of the first and third color filters is substantially equal to a width of the pixel region, and the width of the second color filter is smaller than the width of the pixel region.

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

• G02F1/133514

  Colour filters · 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

• G02B5/201 Primary

  in the form of arrays · CPC title

• G02F1/136286

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