US2007030422A1PendingUtilityA1

Color liquid crystal panel, method for manufacturing the same, and color liquid crystal display device employing the same

Assignee: NEC CORPPriority: Apr 16, 2001Filed: Oct 11, 2006Published: Feb 8, 2007
Est. expiryApr 16, 2021(expired)· nominal 20-yr term from priority
G02F 1/133516G02F 1/133555G02F 1/133514G02F 1/1335
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Claims

Abstract

Within a reflective display section R, a part of a light that reaches a reflective electrode through a color filter exits to the outside through slits and a part of a light that reaches the reflective electrode through the slits exits to the outside through the color filter. In addition, a light reaching the reflective electrode through the color filter and exiting to the outside through the color filter, and a light having no opportunity to pass through the slits also can be observed. Therefore, a mean film thickness of color filter through which all lights pass during the time in which they travel the associated distance after they are inputted to the inside until they are outputted to the outside becomes nearly equal to that could be observed in the transmissive section T.

Claims

exact text as granted — not AI-modified
1 . A color liquid crystal panel comprising: 
 a display surface with plural pixels, each of said plural pixels comprising,    a thin film transistor,    a reflective electrode connected to said thin film electrode,    a transparent electrode, and    plural color filters that each has a different color and a first part facing said reflective electrode and a second part facing said transparent electrode, wherein said first part has at least one opening whose area depends on the color; and    said panel further comprising a backlight that is arranged so that light from said backlight exits said display surface after passing through said transparent electrode and said second part,    wherein external light input into said display surface and through said first part and said at least one opening is reflected by said reflective electrode and exits said display surface after again passing through said first part and said at least one opening.    
   
   
       2 . The panel of  claim 1 , wherein said first and second parts and said at least one opening have sizes so that color reproduction ranges of (a) the light that exits said display surface after passing through said transparent electrode and (b) the external light that exits said display surface after again passing through said first part and said at least one opening, substantially coincide with each other.  
   
   
       3 . The panel of  claim 2 , wherein said first and second parts are substantially the same size.  
   
   
       4 . The panel of  claim 3 , comprising three of said color filters that are red, green, and blue, and wherein said at least one opening in said first part of said green color filter is larger than said at least one opening in each said first part of said red and blue color filters.  
   
   
       5 . The panel of  claim 4 , wherein said second part does not have an opening therein.  
   
   
       6 . The panel of  claim 1 , wherein said first and second parts are substantially the same size.  
   
   
       7 . The panel of  claim 1 , comprising three of said color filters that are red, green, and blue, and wherein said at least one opening in said first part of said green color filter is larger than said at least one opening in each said first part of said red and blue color filters.  
   
   
       8 . The panel of  claim 1 , wherein said second part does not have an opening therein.  
   
   
       9 . The panel of  claim 1 , wherein said at least one opening causes a color reproduction range of the external light that exits said display surface after again passing through said first part and said at least one opening to be narrower than if said at least one opening were not present in said first part.

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