IP Library Granted Patent US 8,390,767
Granted Patent B2
US 8,390,767 · App. 12/416,417 · Granted Mar 5, 2013

Display panel and method for manufacturing the same

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Quick Facts
Patent No.
US 8,390,767
App. No.
12/416,417
Granted
Mar 5, 2013
Kind
B2
Abstract

A method of manufacturing a display panel, the method includes forming a display panel including a first substrate, the first substrate including a pixel electrode disposed thereon, a second substrate including a common electrode disposed thereon, and a liquid crystal layer interposed between the first and the second substrates, the liquid crystal layer including a plurality of liquid crystal molecules and a plurality of ultraviolet (“UV”)-curable particles; and curing a portion of the UV-curable particles by irradiating light on the display panel, wherein an exposure voltage, which is greater than a maximum data voltage corresponding to maximum grayscale data of the display panel, is applied between the pixel electrode and the common electrode. Also described is a display panel.

Claims (18)

1. A method of manufacturing a display panel, the method comprising:

forming a display panel comprising a first substrate, the first substrate including a pixel electrode disposed thereon, a second substrate having a common electrode disposed thereon, and a liquid crystal layer interposed between the first and the second substrates, the liquid crystal layer comprising a plurality of liquid crystal molecules and a plurality of ultraviolet-curable particles; and

curing a portion of the ultraviolet-curable particles by disposing light on the display panel, wherein an exposure voltage, which is greater than a maximum data voltage which corresponds to a maximum grayscale data of the display panel, is applied between the pixel electrode and the common electrode,

wherein the pixel electrode comprises:

a lower pixel electrode, which receives a first data voltage; and

a higher pixel electrode, which receives a second data voltage, wherein the second data voltage is greater than the first data voltage,

wherein the curing of the portion of the ultraviolet-curable particles further comprises:

applying a first exposure voltage to the lower pixel electrode, wherein the first exposure voltage is greater than the maximum data voltage; and

applying a second exposure voltage to the higher pixel electrode, wherein the second exposure voltage is greater than the first exposure voltage.

2. The method of claim 1 , wherein the exposure voltage is between about 7 volts to about 20 volts.

3. The method of claim 1 , further comprising:

curing the remaining ultraviolet-curable particles, which were not cured by irradiating light on the display panel, wherein the exposure voltage is not applied during the curing of the remaining ultraviolet-curable particles.

4. The method of claim 1 , wherein the curing of the portion of the ultraviolet-curable particles further comprises:

applying light of a first energy level to the lower pixel electrode; and

applying light of a second energy level to the higher pixel electrode, wherein the second energy level is greater than the first energy level.

5. The method of claim 1 , wherein the light is ultraviolet light.

6. The method of claim 1 , wherein the content of the ultraviolet-curable particles is less than or equal to about 0.2 weight percent with respect to the liquid crystal molecules.

7. The method of claim 1 , wherein the pixel electrode further comprises a plurality of slits.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 4, 2026
From: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
To: LONESTAR CRYSTAL DISPLAY LLC
Reel/Frame 074944/0730 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 21, 2022
From: SAMSUNG DISPLAY CO., LTD.
To: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Reel/Frame 060778/0487 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 27, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029093/0177 →