IP Library Granted Patent US 9,128,342
Granted Patent B2
US 9,128,342 · App. 13/539,510 · Granted Sep 8, 2015

Method of manufacturing liquid crystal display panel

Inventors: Te-Jen Tseng (Hsin-Chu, TW); Cheng-Yeh Tsai (Hsin-Chu, TW); Fang-Cheng Yu (Hsin-Chu, TW); Tai-Hsiang Huang (Hsin-Chu, TW)
Assignee: AU Optronics Corp.
G02F1/137G02F2001/13793
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Quick Facts
Patent No.
US 9,128,342
App. No.
13/539,510
Granted
Sep 8, 2015
Kind
B2
Abstract

The present invention provides a method of manufacturing a liquid crystal display panel. First, a top substrate, a bottom substrate, and a liquid crystal medium are provided, and the liquid crystal medium is filled between the top substrate and the bottom substrate. Next, an electric field is applied to the liquid crystal medium. Then, the electric field is stopped. Thereafter, an energy light beam is irradiated on the liquid crystal medium to form a liquid crystal layer.

Claims (29)

1. A method of manufacturing a liquid crystal display (LCD), comprising:

providing a top substrate, a bottom substrate, and a liquid crystal medium, wherein the liquid crystal medium being filled between the top substrate and the bottom substrate;

applying an electric field to the liquid crystal medium;

stopping applying the electric field; and

irradiating an energy light beam on the liquid crystal medium to form a liquid crystal layer after stopping applying the electric field, wherein there is no energy light beam irradiated on the liquid crystal medium before irradiating the energy light beam on the liquid crystal medium.

2. The method of manufacturing the LCD panel according to claim 1 , wherein the step of applying the electric field and the step of irradiating the energy light beam comprising placing the liquid crystal medium at a temperature range.

3. The method of manufacturing the LCD panel according to claim 1 , wherein the step of providing the liquid crystal medium comprises:

providing a plurality of liquid crystal molecules, and the liquid crystal molecules have a plurality of defect spaces;

providing a plurality of reactive monomers; and

mixing the reactive monomers and the liquid crystal molecules.

4. The method of manufacturing the LCD panel according to claim 3 , wherein in the step of applying the electric field, the reactive monomers are filled into the defect spaces.

5. The method of manufacturing the LCD panel according to claim 1 , wherein in the step of providing the liquid crystal medium, when no driving electric field is applied to the liquid crystal medium, the liquid crystal medium has an optical isotropic property, and when a driving electric field is applied to the liquid crystal medium, the liquid crystal medium has an optical anisotropic property.

6. The method of manufacturing the LCD panel according to claim 1 , the liquid crystal medium is blue phase liquid crystal.

7. The method of manufacturing the LCD panel according to claim 1 , wherein the step of providing the bottom substrate comprising:

providing a substrate;

forming at least one pixel electrode on the substrate, and between the liquid crystal medium and the substrate; and

forming at least one common electrode on the substrate, wherein the common electrode and the pixel electrode are arranged along a direction, and the common electrode is disposed between the liquid crystal medium and the substrate.

8. The method of manufacturing the LCD panel according to claim 7 , wherein the step of applying the electric field comprises providing a voltage difference between the pixel electrode and the common electrode to generate the electric field.

9. The method of manufacturing the LCD panel according to claim 8 , wherein the step of providing the voltage difference comprises:

providing a range of the voltage difference being larger than 0 volt and being less than or equal to a saturation voltage of the liquid crystal medium.

10. The method of manufacturing the LCD panel according to claim 1 , wherein the step of providing the top substrate and the bottom substrate comprises:

providing a first substrate;

forming a common electrode on the first substrate, and the common electrode being disposed between the liquid crystal medium and the first substrate;

providing a second substrate; and

forming at least one pixel electrode on the second substrate, and the pixel electrode being disposed between the liquid crystal medium and the second substrate.

11. The method of manufacturing the LCD panel according to claim 10 , wherein the step of applying the electric field comprises providing a voltage difference between the pixel electrode and the common electrode to generate the electric field.

12. The method of manufacturing the LCD panel according to claim 11 , wherein the step of providing the voltage difference comprises:

providing a range of the voltage difference being larger than 0 volt and being less than or equal to a saturation voltage of the liquid crystal medium.

13. The method of manufacturing the LCD panel according to claim 1 , wherein the step of irradiating the energy light beam on the liquid crystal medium comprises providing an ultraviolet light.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 21, 2023
From: AUO CORPORATION
To: OPTRONIC SCIENCES LLC
Reel/Frame 064658/0572 →
CHANGE OF NAME Recorded May 25, 2023
From: AU OPTRONICS CORPORATION
To: AUO CORPORATION
Reel/Frame 063785/0830 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 30, 2012
From: TSENG, TE-JEN; TSAI, CHENG-YEH; YU, FANG-CHENG; HUANG, TAI-HSIANG
To: AU OPTRONICS CORP.
Reel/Frame 028728/0823 →
Priority Claims (1)
TW 100135023 A · Sep 28, 2011 · national
Continuity (1)
Related Publication 20130078884A1 · Mar 28, 2013