IP Library Granted Patent US 7,369,197
Granted Patent B2
US 7,369,197 · App. 10/523,983 · Granted May 6, 2008

Polarizer, panel for a liquid crystal display, and liquid crystal display, including a scattering layer

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Quick Facts
Patent No.
US 7,369,197
App. No.
10/523,983
Granted
May 6, 2008
Kind
B2
Abstract

Red, green, blue color filters are arranged in sequence in pixel areas of an LCD according to the present invention. Filters, which are scattering particles of a scattering layer, are distributed in a net, and they are distributed in a diagonal direction such that the concentration of the fillers is lower in border areas located between the pixel areas than in the pixel areas.

Claims (24)

1. A panel for liquid crystal display comprising:

a plurality of pixel areas arranged in a matrix; and

a scattering layer defining an outer surface of the panel, the scattering layer containing fillers for inducing light scattering indicated as haze value,

wherein the fillers are distributed in a concentration having different values in the pixel areas and in border areas located between the pixel areas.

2. The panel of claim 1 , wherein the concentration of the fillers in the border areas is lower than that in the pixel areas.

3. A polarization plate for liquid crystal display, the polarization plate comprising:

an upper protective film including fillers that are formed inside the upper protective film or are formed on at least one surface of the upper protective film for inducing light scattering indicated as haze value, the fillers distributed in a concentration different between in pixel areas and in border areas located between the pixel areas;

an analyzer having a first surface, on which the upper protective film is attached, and a second surface facing the first surface; and

a lower protective film attached to the second surface of the analyzer.

4. The polarizing plate of claim 3 , wherein the concentration of the fillers is lower in the border areas than in the pixel areas.

5. A liquid crystal display comprising:

a first and a second panels facing each other and having pixel areas arranged in a matrix;

a liquid crystal layer interposed between the first panel and the second panel; and

a scattering layer formed on an outer surface of the second panels and containing fillers for inducing light scattering as haze value, the fillers in a concentration different between in the pixel areas and in border areas located between the pixel areas.

6. The liquid crystal display of claim 5 , wherein the concentration of the fillers is lower in the border areas than in the pixel areas.

7. The liquid crystal display of claim 6 , further comprising upper and lower polarization plates attached to outer surfaces of the first and the second panels, respectively.

8. The liquid crystal display of claim 7 , wherein the upper polarization plate comprises an analyzer and first and second protective films attached on upper and lower surfaces of the analyzer, respectively.

9. The liquid crystal display of claim 8 , wherein the scattering layer is disposed between the second panel and the first protective film or on the first protective film opposite the analyzer.

10. The liquid crystal display of claim 5 , wherein the fillers of the scattering layer are distributed in a net.

11. The liquid crystal display of claim 10 , wherein the fillers are distributed in a diagonal direction in the pixel areas.

12. The panel of claim 11 , wherein the parts of intersection of the fillers are located on a long side of the border area.

13. The panel of claim 1 , wherein the fillers of the scattering layer are distributed in a net.

14. The panel of claim 13 , wherein the fillers are distributed in a diagonal direction in the pixel areas.

15. The panel of claim 14 , wherein the parts of intersection of the fillers are located on a long side of the border area.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 14, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 028984/0774 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 12, 2005
From: SONG, YOUNG-GOO; HONG, KWEON-SAM; LEE, HAN-JU; UM, YOON-SUNG
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 017497/0055 →