IP Library Granted Patent US 9,664,942
Granted Patent B2
US 9,664,942 · App. 14/807,685 · Granted May 30, 2017

Liquid crystal display

Inventors: Dae Youn Park (Yongin, KR); Sang Hun Lee (Yongin, KR); Min Jung Kang (Yongin, KR); Chang Hun Kwak (Yongin, KR); Young Bong Cho (Yongin, KR)
Assignee: Samsung Display Co., Ltd.
G02F1/133512G02F1/13394G02F1/133707G02F2001/134345G02F2001/136222
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Quick Facts
Patent No.
US 9,664,942
App. No.
14/807,685
Granted
May 30, 2017
Kind
B2
Abstract

Provided is a liquid crystal display, including a first substrate including a plurality of pixel regions including a transmissive light area and a non-transmissive light area, a second substrate facing the first substrate and a liquid crystal layer disposed between the first substrate and the second substrate, wherein the pixel regions includes color filters disposed on a base substrate, a pixel electrode disposed on each of the color filters at the transmissive light area and a black column spacer at a region except a region corresponding to the transmissive light area, wherein the each of the color filters has substantially rectangular shape with a long side and a short side, and wherein the long side has a recess portion in which a part of a long side corresponding to the non-transmissive light area is removed.

Claims (80)

1. A liquid crystal display, comprising:

a first substrate including a plurality of pixel regions including a transmissive light area and a non-transmissive light area;

a second substrate facing the first substrate; and

a liquid crystal layer disposed between the first substrate and the second substrate,

wherein the pixel regions includes:

color filters disposed on a base substrate at the pixel regions;

a pixel electrode disposed on each of the color filters at the transmissive light area; and

a black column spacer disposed at a region except a region corresponding to the transmissive light area,

wherein the each of the color filters has a substantially rectangular shape with a long side and a short side, and

wherein the long side has a recess portion in which a part of a long side corresponding to the non-transmissive light area is removed, and

wherein color filters adjacent to each other overlap at a region between transmissive light areas adjacent to each other but do not overlap at a region where the recess portion is formed.

2. The liquid crystal display as claimed in claim 1 ,

wherein the black column spacer comprises:

a light blocking portion surrounding the transmissive light area; and

a cell gap retaining portion disposed at the non-transmissive light area and maintaining a distance between the first substrate and the second substrate.

3. The liquid crystal display as claimed in claim 2 ,

wherein the light blocking portion disposed at a region where the adjacent color filters overlap each other is protruded in a direction of the second substrate due to the overlapping of the color filters.

4. The liquid crystal display as claimed in claim 3 , wherein the pixel electrode comprises:

a hexagon-shaped first pixel electrode provided on the color filter and including a rhombus-shaped open portion at a center;

a protective layer covering the first pixel electrode; and

a second pixel electrode disposed on the protective layer,

wherein the second pixel electrode comprises:

a first sub-pixel electrode overlapping the open portion of the first pixel electrode; and

a second sub-pixel electrode surrounding the first sub-pixel electrode and spaced apart from the first sub-pixel electrode.

5. The liquid crystal display as claimed in claim 4 ,

wherein the first sub-pixel electrode includes a cross-shaped stem and a plurality of first branch portions extending from the stem portion,

wherein the second sub-pixel electrode includes a peripheral portion having a substantially rectangular shape and a plurality of second branch portions extending from the peripheral portion.

6. A liquid crystal display, comprising:

a first substrate including a plurality of pixel regions divided into a transmissive light area and a non-transmissive light area;

a second substrate facing the first substrate; and

a liquid crystal layer disposed between the first substrate and the second substrate,

wherein the first substrate comprises:

a gate line disposed on the first base substrate;

a data line crossing the gate line by being insulated from the gate line;

a plurality of thin film transistors coupling to the gate line and the data line and disposed at the non-transmissive light area;

a first protective layer covering the thin film transistors;

color filters disposed on the first protective layer at the pixel regions;

a first pixel electrode disposed on each of the color filters and coupling to one of the thin film transistors;

a second protective layer covering the first pixel electrode;

a second pixel electrode provided on the second protective layer and coupling to another one of the thin film transistors; and

a black column spacer disposed at a region except a region corresponding to the transmissive light area,

wherein the each of the color filters has a substantially rectangular shape with a long side and a short side, and

wherein the long side has a recess portion in which a part of a long side corresponding to the non-transmissive light area is removed.

7. The liquid crystal display as claimed in claim 6 ,

wherein adjacent color filters overlap at a region between adjacent transmissive light regions and do not overlap at a region where the recessed portion is formed.

8. The liquid crystal display as claimed in claim 7 ,

wherein the black column spacer comprises:

a light blocking portion surrounding the transmissive light area; and

a cell gap retaining portion disposed at the non-transmissive light area and maintaining a distance between the first substrate and the second substrate.

9. The liquid crystal display as claimed in claim 8 ,

wherein the light blocking portion disposed at a region where the adjacent color filters overlap protrudes in a direction of the second substrate due to the overlapping of the color filters.

10. The liquid crystal display as claimed in claim 9 , further comprising a third protective layer disposed between the color filter and the first pixel electrode.

11. The liquid crystal display as claimed in claim 10 ,

wherein the first pixel electrode is hexagon-shaped and includes a rhombus-shaped open portion at a center,

wherein the second pixel electrode includes a first sub-pixel electrode overlapping the open portion of the first pixel electrode and a second sub-pixel electrode spaced apart from the first pixel electrode and surrounding of the first sub-pixel electrode.

12. The liquid crystal display as claimed in claim 11 ,

wherein the first sub-pixel electrode includes a cross-shaped stem portion and a plurality of first branch portions extending from the stem portion,

wherein the second sub-pixel electrode includes a peripheral portion having a substantially rectangular shape and a plurality of second branch portions extending from the peripheral portion.

13. A liquid crystal display, comprising:

a first substrate including a plurality of pixel regions including a transmissive light area and a non-transmissive light area, the pixel regions including adjacent subpixel regions;

a second substrate facing the first substrate; and

a liquid crystal layer disposed between the first substrate and the second substrate,

wherein the pixel regions includes:

color filters disposed on a base substrate;

a pixel electrode disposed on each of the color filters at the transmissive light area; and

a black column spacer disposed at a region except a region corresponding to the transmissive light area,

wherein an overlap length of adjacent color filters at a region corresponding to the transmissive light areas is longer than that in the non-transmissive light area.

14. The liquid crystal display as claimed in claim 13 ,

wherein each of the color filters has a recess portion at a region corresponding to the non-transmissive light area.

15. The liquid crystal display as claimed in claim 14 ,

wherein the adjacent color filters at a region corresponding to the non-transmissive light area do not overlap.

16. The liquid crystal display as claimed in claim 15 ,

wherein the recess portion has a trapezoidal shape in which a long base is closer to the pixel edge than a short base.

17. The liquid crystal display as claimed in claim 15 ,

wherein the long base and the short base are substantially parallel to the pixel edge.

18. The liquid crystal display as claimed in claim 13 ,

wherein the recess portion has a trapezoidal shape in which a long base is closer to the pixel edge than a short base, and

wherein the long base and the short base are substantially parallel to the pixel edge.

19. The liquid crystal display as claimed in claim 13 ,

wherein the adjacent color filters at a region corresponding to the non-transmissive light area do not overlap.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 23, 2015
From: PARK, DAE YOUN; LEE, SANG HUN; KANG, MIN JUNG; KWAK, CHANG HUN; CHO, YOUNG BONG
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 036168/0133 →
Priority Claims (1)
KR 10-2014-0150311 · Oct 31, 2014 · national
Continuity (1)
Related Publication 20160124263A1 · May 5, 2016