US2013135562A1PendingUtilityA1

Display panel and method for manufacturing the same

Assignee: SAMSUNG DISPLAY CO LTDPriority: Jul 14, 2008Filed: Jan 29, 2013Published: May 30, 2013
Est. expiryJul 14, 2028(~2 yrs left)· nominal 20-yr term from priority
G02F 1/133G02F 1/133788G02F 1/1343G02F 1/133707G02F 1/13G02F 1/1337
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Claims

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

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A display panel comprising:
 a first substrate comprising a pixel electrode, the pixel electrode including 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;   a second substrate comprising a common electrode disposed facing the first substrate; 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, the ultraviolet-curable particles pretilting the liquid crystal molecules corresponding to the lower pixel electrode at a first pretilt angle, and pretilting the liquid crystal molecules corresponding to the higher pixel electrode at a second pretilt angle, wherein the first pretilt angle and the second pretilt angle are different.   
     
     
         2 . The display panel of  claim 1 , wherein the second pretilt angle is greater than the first pretilt angle. 
     
     
         3 . The display panel of  claim 1 , wherein the pixel electrode further comprises a plurality of slits. 
     
     
         4 . A method of manufacturing a display panel, the method comprising:
 forming a display panel comprising,
 a first substrate comprising a pixel electrode, the pixel electrode comprising 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, 
 a second substrate comprising a common electrode disposed thereon, and 
 a liquid crystal layer comprising a plurality of liquid crystal molecules and a plurality of ultraviolet-curable particles, the liquid crystal layer interposed between the first and the second substrates; and 
   curing a portion of the ultraviolet-curable particles by irradiating light on the display panel to pretilt the liquid crystal molecules corresponding to the lower pixel electrode at a first pretilt angle and pretilting the liquid crystal molecules corresponding to the higher pixel electrode at a second pretilt angle, wherein the first pretilt angle and the second pretilt angle are different, and wherein an exposure voltage is applied between the pixel electrode and the common electrode during the curing.   
     
     
         5 . The method of  claim 4 , wherein the second pretilt angle is greater than the first pretilt angle. 
     
     
         6 . The method of  claim 5 , wherein the curing of the portion of the ultraviolet-curable particles further comprises:
 applying a first exposure voltage to the lower pixel electrode and applying a second exposure voltage to the higher pixel electrode, wherein the second exposure voltage is greater that the first exposure voltage.   
     
     
         7 . The method of  claim 5 , wherein the curing of the portion of the ultraviolet-curable particles further comprises:
 applying the exposure voltage to the lower pixel electrode for a first time, and applying the exposure voltage to the higher pixel electrode for a second time, wherein the second time is longer than the first time.   
     
     
         8 . The method of  claim 5 , 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.   
     
     
         9 . The method of  claim 5 , wherein the curing of the portion of the ultraviolet-curable particles further comprises:
 applying the light to the lower pixel electrode for a first time; and   applying the light to the higher pixel electrode for a second time, wherein the second time is longer than the first time.   
     
     
         10 . The method of  claim 4 , 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.   
     
     
         11 . The method of  claim 4 , wherein the pixel electrode comprises a plurality of slits patterns.

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