IP Library Granted Patent US 8,345,195
Granted Patent B2
US 8,345,195 · App. 12/765,542 · Granted Jan 1, 2013

Liquid crystal display

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Quick Facts
Patent No.
US 8,345,195
App. No.
12/765,542
Granted
Jan 1, 2013
Kind
B2
Abstract

The present invention relates to a liquid crystal display. The liquid crystal display includes a first substrate and a second substrate facing each other; a liquid crystal layer interposed between the first substrate and the second substrate; a sealant coupling the first substrate and the second substrate and enclosing the liquid crystal layer; a display signal line arranged on the first substrate and including an end portion; and a first spacer disposed between the end portion of the display signal line and the sealant. The liquid crystal layer includes liquid crystal molecules exhibiting a pretilt alignment with respect to the first and second substrates.

Claims (61)

1. A liquid crystal display, comprising:

a first substrate and a second substrate facing each other;

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

a sealant coupling the first substrate and the second substrate and enclosing the liquid crystal layer;

a display signal line arranged on the first substrate and comprising an end portion; and

a first spacer disposed between the end portion of the display signal line and the sealant, the sealant being disposed between the first spacer and the liquid crystal layer.

2. The liquid crystal display of claim 1 , wherein

at least one of a distance between the first spacer and the end portion of the display signal line and a distance between the first spacer and the sealant is in a range of 300 μm to 700 μm.

3. The liquid crystal display of claim 2 , wherein

the first spacer is disposed along the end portion of the display signal line.

4. The liquid crystal display of claim 3 , further comprising:

a second spacer disposed opposite the first spacer with respect to the end portion of the display signal line.

5. The liquid crystal display of claim 4 , wherein

a distance between the second spacer and the end portion of the display signal line is in a range of 300 μm to 700 μm.

6. The liquid crystal display of claim 5 , further comprising:

a pixel electrode arranged on the first substrate, connected to the display signal line, and comprising branches; and

a common electrode arranged on a surface of the second substrate that faces the first substrate.

7. The liquid crystal display of claim 6 , further comprising:

an alignment layer arranged on the first substrate to align the liquid crystal molecules perpendicular to the first substrate,

wherein the liquid crystal layer comprises:

liquid crystal molecules;

a prepolymer; and

a polymer to align the liquid crystal molecules to be pretilted in a direction parallel to the length of the branches, wherein the prepolymer is irradiated to form the polymer.

8. The liquid crystal display of claim 1 , wherein

the first spacer is disposed along the end portion of the display signal line.

9. The liquid crystal display of claim 8 , further comprising:

a second spacer disposed opposite the first spacer with respect to the end portion of the display signal line.

10. The liquid crystal display of claim 9 , wherein

the distance between the second spacer and the end portion of the display signal line is in a range of 300 μm to 700 μm.

11. The liquid crystal display of claim 10 , further comprising:

a pixel electrode arranged on the first substrate, connected to the display signal line, and comprising branches; and

a common electrode arranged on a surface of the second substrate that faces the first substrate.

12. The liquid crystal display of claim 11 , further comprising:

an alignment layer arranged on the first substrate to align the liquid crystal molecules perpendicular to the first substrate,

wherein the liquid crystal layer comprises:

liquid crystal molecules;

a prepolymer; and

a polymer to align the liquid crystal molecules to be pretilted in a direction parallel to the length of the branches, wherein the prepolymer is irradiated to form the polymer.

13. The liquid crystal display of claim 1 , further comprising:

a second spacer disposed opposite the first spacer with respect to the end portion of the display signal line.

14. The liquid crystal display of claim 13 , wherein

the distance between the second spacer and the end portion of the display signal line is in a range of 300 μm to 700 μm.

15. The liquid crystal display of claim 14 , further comprising

a pixel electrode arranged on the first substrate, connected to the display signal line, and comprising branches; and

a common electrode arranged on a surface of the second substrate that faces the first substrate.

16. The liquid crystal display of claim 15 , further comprising:

an alignment layer arranged on the first substrate to align the liquid crystal molecules perpendicular to the first substrate,

wherein the liquid crystal layer comprises:

liquid crystal molecules;

a prepolymer; and

a polymer to align the liquid crystal molecules to be pretilted in a direction parallel to the length of the branches, wherein the prepolymer is irradiated to form the polymer.

17. The liquid crystal display of claim 1 , further comprising:

a pixel electrode arranged on the first substrate, connected to the display signal line, and comprising branches; and

a common electrode arranged on a surface of the second substrate that faces the first substrate.

18. The liquid crystal display of claim 17 , further comprising:

an alignment layer arranged on the first substrate to align the liquid crystal molecules perpendicular to the first substrate,

wherein the liquid crystal layer comprises:

liquid crystal molecules; and

a polymer to align the liquid crystal molecules to be pretilted in a direction parallel to the length of the branches.

19. The liquid crystal display of claim 18 , wherein

the polymer is arranged by irradiating a prepolymer.

Assignments (2)
CHANGE OF NAME Recorded Aug 28, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 028859/0868 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 24, 2010
From: HAN, KYOUNG-TAI; LEE, EUN-GUK; KIM, DONG-YOON; PARK, HYUNG-JUN
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 024427/0629 →