Semi-transparent type liquid crystal display panel and method of manufacturing the same

Abstract

The present invention relates to a semi-transparent type LCD panel and a method of manufacturing the same. The semi-transparent type LCD panel mainly comprises a transparent substrate, a first transparent conductive layer, a first alignment layer, a liquid crystal layer, a second alignment layer, a second transparent conductive layer, a color filter layer, a passivation layer, and a TFT array substrate. A reflection layer is formed on a portion of the passivation layer. The area of the passivation layer not covered with the reflection layer is etched to a certain depth. The passivation layer has two different levels of thickness so as to allow reflected transmitting lights to be of the same color density.

1 . A semi-transparent type liquid crystal display panel, comprising: 
 a transparency substrate;    a TFT array substrate;    a liquid crystal layer between said transparency substrate and said TFT array substrate;    a passivation layer on said TFT array substrate, said passivation layer having a transmissive portion and a reflection portion, where said reflection portion is thicker than said transmissive portion;    a reflection layer on said reflection portion of said passivation layer; and    a flat color filter on said reflection layer and said transmissive portion of said passivation layer;    wherein a first light reflected by said reflection layer and a second light transmitting through said transmissive portion of said passivation layer have the same color density.    
   
   
       2 . The liquid crystal display panel according to  claim 1 , further comprising a first transparent conductive layer between said flat color filter and said liquid crystal layer, and a second transparent conductive layer between said transparency substrate and said liquid crystal layer.  
   
   
       3 . The liquid crystal display panel according to  claim 2 , further comprising a first alignment layer between said first transparent conductive layer and said liquid crystal layer, and a second alignment layer between said second transparent conductive layer and said liquid crystal layer.  
   
   
       4 . The liquid crystal display panel according to  claim 1 , further comprising a first transparent conductive layer between said flat color filter and said TFT array substrate, and a second transparent conductive layer between said transparency substrate and said liquid crystal layer.  
   
   
       5 . The liquid crystal display panel according to  claim 4 , further comprising a first alignment layer between said flat color filter and said liquid crystal layer, and a second alignment layer between said second transparent conductive layer and said liquid crystal layer.  
   
   
       6 . The liquid crystal display panel according to  claim 1 , wherein said reflection layer is aluminum, silver, chromium, aluminum alloy, or chromium alloy.  
   
   
       7 . The liquid crystal display panel according to  claim 1 , wherein said flat color filter is a photoresist with pigments.  
   
   
       8 . The liquid crystal display panel according to  claim 7 , wherein said flat color filter is formed by spin coating, spinless coating, transferring, or printing.  
   
   
       9 . The liquid crystal display panel according to  claim 1 , wherein said flat color filter is thinner on said reflection portion than on said transmissive portion.  
   
   
       10 . A method for manufacturing a semi-transparent type liquid crystal panel, comprising: 
 forming a passivation layer on a TFT array substrate;    forming a reflection layer on a partial section of said passivation layer as a reflection portion;    etching a thickness of other section of said passivation layer without being covered by said reflection layer as a transmissive portion;    forming a flat color filter on said passivation layer and said reflection layer;    forming a first transparent conductive layer and a first alignment layer on said flat color filter in sequence; and    fabricating said TFT array substrate and a transparency substrate having a second transparent conductive layer and a second alignment layer, and a liquid crystal layer between said TFT array substrate and said transparency substrate into an LCD panel;    wherein, a first light reflected by said reflection portion and a second light transmitting through said transmissive portion of said passivation layer have the same color density.    
   
   
       11 . The method according to  claim 10 , wherein said reflection layer is aluminum, silver, chromium, aluminum alloy, or chromium alloy.  
   
   
       12 . The method according to  claim 10 , wherein said flat color filter is a photoresist with pigments.  
   
   
       13 . The method according to  claim 10 , wherein said flat color filter is formed by spin coating, spinless coating, transferring, or printing.  
   
   
       14 . The method according to  claim 10 , wherein said flat color filter is thinner on said reflection portion than on said transmissive portion.  
   
   
       15 . A method for manufacturing a semi-transparent type liquid crystal panel, comprising: 
 forming a passivation layer on a TFT array substrate;    forming a reflection layer on a partial section of said passivation layer;    etching a thickness of other section of said passivation layer without being covered by said reflection layer;    forming a first transparent conductive layer on said passivation layer and said reflection layer;    forming a flat color filter on said transparent conductive layer;    forming a first alignment layer formed on said flat color filter; and    fabricating said TFT array substrate and a transparency substrate having a second transparent conductive layer and an second alignment layer, and a liquid crystal layer being between said TFT array substrate and said transparency substrate into an LCD panel;    wherein, a first light reflected by said reflection portion and a second light transmitting through said transmissive portion of said passivation layer have the same color density.    
   
   
       16 . The method according to  claim 15 , wherein said reflection layer is aluminum, silver, chromium, aluminum alloy, or chromium alloy.  
   
   
       17 . The method according to  claim 15 , wherein said flat color filter is a photoresist with pigments.  
   
   
       18 . The method according to  claim 15 , wherein said flat color filter is formed by spin coating, spinless coating, transferring, or printing.  
   
   
       19 . The method according to  claim 15  wherein said flat color filter is thinner on said reflection portion than on said transmissive portion.