Liquid crystal display panel

Abstract

The liquid crystal display panel according to the present invention is a liquid crystal display panel LCD wherein a CF substrate S 1 on which color filters are formed and a TFT substrate S 2 on which thin film transistor circuits are formed are layered on top of each other with liquid crystal being sealed between the two substrates, characterized in that a black light blocking region BM is formed in a frame portion of the CF substrate S 1 , and an identification mark M drawn as a negative pattern is provided to a part of the light blocking region, and a metal film MT 1 is provided to the TFT substrate S 2 in such a location as to block light that transmits through the identification mark.

What is claimed is: 
     
         1 . A liquid crystal display panel, wherein a CF substrate on which color filters are formed and a TFT substrate on which thin film transistor circuits are formed are layered on top of each other with liquid crystal being sealed between the two substrates, characterized in that
 a black light blocking region is formed in a frame portion of the CF substrate, and an identification mark drawn as a negative pattern is provided to a part of the light blocking region, and   a metal film is provided to the TFT substrate in such a location as to block light that transmits through the identification mark.   
     
     
         2 . The liquid crystal display panel according to  claim 1 , characterized in that the metal film is connected to a part of an electric wire formed on the TFT substrate. 
     
     
         3 . The liquid crystal display panel according to  claim 1 , characterized in that the metal film is a part of a patterned metal where a number of slits are created, and some of the slits are omitted in the location corresponding to the identification mark. 
     
     
         4 . The liquid crystal display panel according to  claim 3 , characterized in that some slits are omitted in the same manner as said omitted slits in another region of the patterned metal corresponding to said omitted slits so that the patterned metal has an adjusted electrical resistance value. 
     
     
         5 . The liquid crystal display panel according to  claim 1 , characterized in that the metal film is a part of a patterned metal where a number of slits are created, and the identification mark is made of a set of openings created in locations of the light blocking region that avoid the slits.