Multi-domain vertically aligned liquid crystal display

Abstract

A multi-domain vertically aligned liquid crystal display (MVA LCD) includes an active component array substrate, an opposite substrate, and a liquid crystal layer. The active component array substrate has a plurality of pixel units, and the liquid crystal layer is disposed between the active component array substrate and the opposite substrate. The liquid crystal layer proximal each pixel unit is divided into plural domain sets. Each domain set has plural domains.

1 . A multi-domain vertically aligned liquid crystal display, comprising: 
 an active component array substrate which has a plurality of pixel units;    an opposite substrate; and    a liquid crystal layer, which is disposed between said active component array substrate and said opposite substrate, wherein said liquid crystal layer proximal each pixel unit is divided into a plurality of domain sets, each of which has plural domains, and the effective voltage supplied to said liquid crystal layer in each domain set is different.    
   
   
       2 . The display of  claim 1 , wherein said opposite substrate has a common electrode layer which faces said active component array substrate, the display further comprising a plurality of scan lines and a plurality of data lines, and each of said pixel unit is controlled by one of said scan lines and one of said data line.  
   
   
       3 . The display of  claim 2 , wherein said domain sets includes a first domain set and a second domain set.  
   
   
       4 . The display of  claim 3 , wherein each pixel unit includes: 
 a thin film transistor;    a first pixel electrode electrically connected to the active component and being in a location that corresponds to the first domain set;    a metal layer electrically connected to said first pixel electrode; and    a second pixel electrode coupled to said metal layer to form a capacitance and being in a location that corresponds to the second domain set.    
   
   
       5 . The display of  claim 4 , wherein each pixel unit further includes a shared line and said metal layer is located above said shared line.  
   
   
       6 . The display of  claim 3 , wherein each pixel unit includes: 
 a thin film transistor;    a first pixel electrode electrically connected to said thin film transistor and is in a location that corresponds to said first domain set;    a resistance component electrically connected to said thin film transistor; and    a second pixel electrode electrically connected to said resistance component and is in a location that corresponds to said second domain set.    
   
   
       7 . The display of  claim 6 , wherein said resistance component includes a transistor driven simultaneously with said thin film transistor.  
   
   
       8 . The display of  claim 6 , wherein said resistance component includes a transistor and each pixel unit further includes: 
 a shared line electrically connected to said transistor of the resistance component for turning on said transistor; and    a storage capacitor electrically connected to said shared line and said thin film transistor.    
   
   
       9 . The display of  claim 3 , wherein each pixel unit includes: 
 a thin film transistor;    a pixel electrode electrically connected to said thin film transistor; and    a dielectric layer disposed above said pixel electrode and is in a location that corresponds to the second domain set, the dielectric layer not in a location that corresponds to the first domain set.    
   
   
       10 . The display of  claim 3 , wherein each pixel unit includes: 
 a first thin film transistor;    a second thin film transistor;    a first pixel electrode electrically connected to said first thin film transistor and being in a location that corresponds to said first domain set;    a second pixel electrode electrically connected to said second thin film transistor and being in a location that corresponds to said second domain set;    a third thin film transistor, wherein said first thin film transistor and said second thin film transistor are electrically connected to said scan line and said data line corresponding to said pixel unit, and said third thin film transistor is turned on or off by a next scan line; and    a capacitor electrically connected to said second pixel electrode through said third thin film transistor.    
   
   
       11 . The display of  claim 10 , wherein said capacitor includes: 
 a first electrode; and    a second electrode disposed below said first electrode, wherein said first electrode, said first pixel electrode, and said second pixel electrode are of the same material, and said second electrode is of the same material as said data line    
   
   
       12 . The display of  claim 3 , wherein each pixel unit includes: 
 a first thin film transistor electrically connected to said scan line corresponding to said pixel unit;    a first pixel electrode electrically connected to said first thin film transistor and being in a location that corresponds to said first domain set;    a second thin film transistor electrically connected to said data line corresponding to the pixel unit and a next scan line, the second thin film transistor being controlled by a next scan line; and    a second pixel electrode electrically connected to said first thin film transistor and said second thin film transistor and being in a location that corresponds to said second domain set.    
   
   
       13 . A multi-domain vertically aligned liquid crystal display, comprising: 
 an active component array substrate having a plurality of pixel units;    an opposite substrate having a common electrode layer; and    a liquid crystal layer disposed between said active component array substrate and said opposite substrate,    wherein said liquid crystal layer proximal each pixel unit is divided into at least a first domain set and a second domain set, and each of said first domain set and said second domain set includes plural domains, and each pixel unit includes: 
 a thin film transistor;  
 a pixel electrode electrically connected to said thin film transistor and having at least one slit, the location of the at least one slit corresponding to said second domain set; and  
 at least one alignment protrusion disposed on said pixel electrode and being at a location that corresponds to said first domain set.  
   
   
   
       14 . A multi-domain vertically aligned liquid crystal display, comprising: 
 an active component array substrate having a plurality of pixel units;    an opposite substrate having a common electrode layer and first alignment structures disposed on said common electrode layer; and    a liquid crystal layer disposed between said active component array substrate and said opposite substrate,    wherein said liquid crystal layer proximal each said pixel unit is divided into a first domain set and a second domain set, and each of said first domain set and said second domain set includes plural domains, and each pixel unit includes: 
 a thin film transistor;  
 a pixel electrode electrically connected to said thin film transistor; and  
 second alignment structures disposed on said pixel electrode, wherein each first alignment structure has a minimum first distance and a minimum second distance from said closest second alignment structures on either side of the first alignment structure, said first distance and said second distance being different.  
   
   
   
       15 . The display of  claim 14 , wherein a space between each said first alignment structure and a first of the second alignment structures is in a location that corresponds to the first domain set, and a space between said first alignment structure and a second of the second alignment structures is in a location that corresponds to the second domain set.  
   
   
       16 . The display of  claim 14 , wherein said first alignment structures are alignment protrusions.  
   
   
       17 . The display of  claim 14 , wherein said second alignment structures are slits.  
   
   
       18 . The display of  claim 14 , wherein said first distance differs from said second distance by 1 μm or more.  
   
   
       19 . The display of  claim 14 , wherein said first distance differs from said second distance by 10 μm or more.  
   
   
       20 . A multi-domain vertically aligned liquid crystal display, comprising: 
 an active component array substrate having a plurality of pixel units;    an opposite substrate having a common electrode layer; and    a liquid crystal layer disposed between said active component array substrate and said opposite substrate,    wherein said liquid crystal layer proximal each pixel unit is divided into a first domain set and a second domain set, and each of said first domain set and said second domain set includes plural domains, and each pixel unit includes: 
 a pixel electrode electrically connected to said thin film transistor and having a plurality of non-jagged slits and a plurality of jagged slits, wherein said non-jagged slits are in a location that corresponds to said first domain set and said jagged slits are in a location that corresponds to said second domain set.