Display device comprising color filter

Patent metadata

Field	Value
Publication number	US-10495918-B2
Application number	US-201715646089-A
Country	US
Kind code	B2
Filing date	Jul 11, 2017
Priority date	Jul 11, 2016
Publication date	Dec 3, 2019
Grant date	Dec 3, 2019

Abstract

A display device includes: a first substrate and a second substrate disposed facing each other; a gate line and a first data line disposed on the first substrate; a thin film transistor connected to the gate line and the first data line; a pixel electrode connected to the thin film transistor; and a color filter disposed on at least one of the first substrate and the second substrate, the color filter overlapping the pixel electrode. The color filter has a width greater than a distance between the the first data line and a second data line disposed adjacent to the first data line.

First claim

What is claimed is:

1. A display device, comprising:
a first substrate and a second substrate disposed facing each other;
a plurality of gate lines, a first data line, and a second data line adjacent to the first data line disposed on the first substrate;
a plurality of thin film transistors connected to the gate lines, the first data line, and the second data line;
a plurality of pixel electrodes connected to the thin film transistors; and
a plurality of color filters disposed on at least one of the first substrate and the second substrate, the color filters overlapping the pixel electrodes,
wherein the color filters have a width greater than a distance between the first data line and the second data line,
wherein the pixel electrodes of one of an odd-numbered row and an even-numbered row are only positioned in odd-numbered columns,
wherein the pixel electrodes of the other of the odd-numbered row and the even-numbered row are only positioned in even-numbered columns, and
wherein an overlapping portion between two adjacent color filters in one row is located between two adjacent pixel electrodes in one column on the plane.

2. The display device as claimed in claim 1 , wherein the color filter has a width which is about 1.3 times to about 2.5 times the distance between the first data line and the second data line.

3. The display device as claimed in claim 2 , wherein an overlapping portion between the color filters is not positioned on the pixel electrode.

4. The display device as claimed in claim 2 , wherein an overlapping portion between the color filters is positioned on a gate electrode of another pixel.

5. The display device as claimed in claim 1 , wherein two adjacent color filters in one row have different colors from a color of a color filter adjacent to said two adjacent color filters and positioned in another row.

6. The display device as claimed in claim 1 , further comprising a light blocking layer positioned on at least one of the first substrate and the second substrate and overlapping the gate line.

7. The display device as claimed in claim 1 , further comprising a light blocking layer positioned on at least one of the first substrate and the second substrate and overlapping the first and second data lines.

8. The display device as claimed in claim 1 , wherein the pixel electrode of one of two adjacent rows is not positioned between two adjacent pixel electrodes of the other of the two adjacent rows.

9. The display device as claimed in claim 1 , wherein thin film transistors respectively connected to the pixel electrodes in a (2k−1)-th row (k being a natural number) and thin film transistors respectively connected to the pixel electrodes in a 2k-th row are connected in common to one gate line.

10. The display device as claimed in claim 1 , wherein the thin film transistor connected to the pixel electrode in the (2k−1)-th row (k being a natural number) is positioned between two pixel electrodes adjacent to the pixel electrode in the (2k−1)-th row and positioned in the 2k-th row.

11. The display device as claimed in claim 1 , wherein the thin film transistor connected to the pixel electrode in the 2k-th row (k being a natural number) is positioned between two pixel electrodes adjacent to the pixel electrode in the 2k-th row and positioned in the (2k−1)-th row.

12. The display device as claimed in claim 1 , wherein the gate lines have a zig-zag shape.

13. The display device as claimed in claim 1 , wherein each of the first and second data lines has a zig-zag shape.

14. The display device as claimed in claim 1 , wherein:
the pixel electrodes are positioned in a light transmitting area,
the thin film transistors and a plurality of gate electrodes are positioned in a light blocking area, and
an area ratio between the light transmitting area and the light blocking area is in a range from about 3:7 to about 4:6.

15. A display device, comprising:
a first substrate and a second substrate disposed facing each other;
a plurality of gate lines, a first data line, and a second data line adjacent to the first data line disposed on the first substrate;
a plurality of thin film transistors connected to the gate lines, the first data line, and the second data line;
a plurality of pixel electrodes connected to the thin film transistors; and
a plurality of color filters disposed on at least one of the first substrate and the second substrate, the color filters overlapping the pixel electrodes,
wherein the color filters have a width greater than a distance between the first data line and the second data line,
wherein the pixel electrodes of one of an odd-numbered row and an even-numbered row are only positioned in odd-numbered columns,
wherein the pixel electrodes of the other of the odd-numbered row and the even-numbered row are only positioned in even-numbered columns, and
wherein the thin film transistors respectively connected to the pixel electrodes in a (2k−1)-th row (k being a natural number) and the thin film transistors respectively connected to the pixel electrodes in a 2k-th row are connected in common to one gate line.

16. A display device, comprising:
a first substrate and a second substrate disposed facing each other;
a plurality of gate lines, a first data line, and a second data line adjacent to the first data line disposed on the first substrate;
a plurality of thin film transistors connected to the gate lines, the first data line, and the second data line;
a plurality of pixel electrodes connected to the thin film transistors; and
a plurality of color filters disposed on at least one of the first substrate and the second substrate, the color filters overlapping the pixel electrodes,
wherein the color filters have a width greater than a distance between the first data line and the second data line,
wherein the pixel electrodes of one of an odd-numbered row and an even-numbered row are only positioned in odd-numbered columns,
wherein the pixel electrodes of the other of the odd-numbered row and the even-numbered row are only positioned in even-numbered columns, and
wherein the thin film transistor connected to the pixel electrode in the (2k−1)-th row (k being a natural number) is positioned between two pixel electrodes adjacent to the pixel electrode in the (2k−1)-th row and positioned in the 2k-th row.

Assignees

• Samsung Display Co Ltd

Inventors

• NOH Junghun
• Song Keunkyu
• Lee Hyunsup
• JANG Sanghee
• Jeon Hyungil
• Choi Byungseok

Classifications

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title

• G02F1/133512

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

• G02F1/134336

  Matrix · CPC title

• G02F1/133514 Primary

  Colour filters · CPC title

• G02F2201/08

  light absorbing layer · CPC title