IP Library Granted Patent US 7,593,082
Granted Patent B2
US 7,593,082 · App. 11/645,618 · Granted Sep 22, 2009

Rubbing membrane material and liquid crystal display device using the same

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Quick Facts
Patent No.
US 7,593,082
App. No.
11/645,618
Granted
Sep 22, 2009
Kind
B2
Abstract

An alignment material for a liquid crystal display (LCD) device includes a mixture of carbon nano-tube and polyimide.

Claims (26)

1. An alignment material for a liquid crystal display (LCD) device, comprising a mixture of carbon nano-tube and polyimide.

2. The alignment material as claimed in claim 1 , wherein the mixture has transparency and conductivity properties.

3. The alignment material as claimed in claim 1 , wherein the mixture includes carbon nano-tubes and polyimide at a volume ratio of about 0.1 to about 1.0%.

4. A liquid crystal display (LCD) device, comprising:

first and second substrates bonded to each other;

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

a pixel electrode formed on the first substrate to pre-align the liquid crystal layer in a particular direction, the pixel electrode being made of a mixture of carbon nano-tube and polyimide; and

a common electrode formed on the second substrate to pre-align the liquid crystal layer in a particular direction.

5. The LCD device as claimed in claim 4 , wherein each of the pixel electrode and the common electrode is made of a mixture that includes carbon nano-tubes and polyimide at a volume ratio of about 0.1% to about 1.0%.

6. The LCD device as claimed in claim 4 , wherein the mixture has transparency and conductivity properties.

7. The LCD device as claimed in claim 4 , wherein the mixture includes carbon nano-tubes and polyimide at a volume ratio of about 0.1% to about 1.0%.

8. The LCD device as claimed in claim 4 , wherein the common electrode is made of a mixture of carbon nano-tube and polyimide.

9. The LCD device as claimed in claim 8 , wherein the mixture has transparency and conductivity properties.

10. The LCD device as claimed in claim 8 , wherein the mixture includes carbon nano-tubes and polyimide at a volume ratio of about 0.1% to about 1.0%.

11. A liquid crystal display (LCD) device, comprising:

first and second substrates bonded to each other;

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

a pixel electrode formed on the first substrate to pre-align the liquid crystal layer in a particular direction and

a common electrode formed on the second substrate to pre-align the liquid crystal layer in a particular direction, the common electrode being made of a mixture of carbon nano-tube and polyimide.

12. The LCD device as claimed in claim 11 , wherein the mixture has transparency and conductivity properties.

13. The LCD device as claimed in claim 11 , wherein the mixture includes carbon nano-tubes and polyimide at a volume ratio of about 0.1% to about 1.0%.

14. A liquid crystal display (LCD) device, comprising:

at least one substrate; and

an alignment layer formed on the substrate to align a liquid crystal in a first direction and to align the liquid crystal in a second direction when current or voltage is applied thereto, the alignment layer being made of a mixture of carbon nano-tube and polyimide.

15. The LCD device as claimed in claim 14 , wherein the mixture includes carbon nano-tubes and polyimide at a volume ratio of about 0.1% to about 1.0%.

16. The LCD device as claimed in claim 14 , wherein the mixture has transparency and conductivity properties.

Assignments (2)
CHANGE OF NAME Recorded Jun 19, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021147/0009 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2006
From: YOON, DONG-KYU
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 018744/0250 →