Liquid crystal display panel and method for producing the same

Abstract

The method of the present invention includes the steps of (A) providing a first substrate, and a second substrate, wherein the first substrate includes a first light shielding layer provided within a non-display region, the first light shielding layer including a light-transmitting portion provided near an outer boundary of the first light shielding layer, the light-transmitting portion comprising a recess or an opening; (B) drawing a seal pattern with a sealant, the seal pattern being drawn outside the first light shielding layer so as to surround the display region, comprising the substeps of: (B1) beginning application of the sealant near the light-transmitting portion, (B2) applying the sealant along an outer periphery of the first light shielding layer, and (B3) forming a junction with the sealant having been applied near the light-transmitting portion; (C) applying a liquid crystal material within the display region surrounded by the sealant; (D) attaching the first substrate and the second substrate; and (E) performing light irradiation from the first substrate side to cure the sealant.

What is claimed is: 
     
         1 . A liquid crystal display panel comprising:
 a first substrate;   a second substrate;   a liquid crystal layer interposed between the first substrate and the second substrate; and   a sealing portion surrounding the liquid crystal layer;   a light shielding layer provided on one of the first and second substrates and including at least one light transmission portion; wherein   a width of the sealing portion is wider at a portion of the sealing portion that overlaps with the at least one light transmission portion; and   the at least one light transmission portion is located at a corner of the light shielding layer.   
     
     
         2 . The liquid crystal display panel of  claim 1 , wherein the at least one light transmission portion is defined by at least one cut-out portion of the light shielding layer. 
     
     
         3 . The liquid crystal display panel of  claim 1 , wherein the at least one light transmission portion is defined by a plurality of cut-out portions of the light shielding layer. 
     
     
         4 . The liquid crystal display panel of  claim 3 , wherein each of the plurality of cut-out portions is located at a respective corner of the light shield layer. 
     
     
         5 . The liquid crystal display panel of  claim 3 , wherein the plurality of cut-out portions includes:
 at least one cut-out portion located at the corner of the light shielding layer: and   at least one cut-out portion located along at least one side of the one of the first and second substrates.   
     
     
         6 . The liquid crystal display panel of  claim 1 , wherein the at least one light transmission portion is defined by at least one recess formed in the light shielding layer. 
     
     
         7 . The liquid crystal display panel of  claim 1 , wherein the at least one light transmission portion is defined by a plurality of recesses formed in the light shielding layer. 
     
     
         8 . The liquid crystal display panel of  claim 7 , wherein each of the plurality of recesses is located at a respective corner of the light shield layer. 
     
     
         9 . The liquid crystal display panel of  claim 7 , wherein the plurality of recesses include:
 at least one recess located at the corner of the light shielding layer; and   at least one recess located along at least one side of the one of the first and second substrates.   
     
     
         10 . The liquid crystal display panel of  claim 1 , wherein the at least one light transmission portion is defined by at least one opening formed in the light shielding layer. 
     
     
         11 . The liquid crystal display panel of  claim 1 , wherein the at least one light transmission portion is defined by a plurality of openings formed in the light shielding layer. 
     
     
         12 . The liquid crystal display panel of  claim 11 , wherein each of the plurality of openings is located at a respective corner of the light shield layer. 
     
     
         13 . The liquid crystal display panel of  claim 11 , wherein the plurality of openings includes:
 at least one opening located at the corner of the light shielding layer; and   at least one opening located along at least one side of the one of the first and second substrates.   
     
     
         14 . The liquid crystal display panel of  claim 1 , wherein:
 the first substrate is a color filter substrate; and   the at least one light transmission portion is provided on the first substrate.   
     
     
         15 . The liquid crystal display panel of  claim 1 , wherein:
 the second substrate is a thin film transistor substrate; and   the at least one light transmission portion is provided on the second substrate.   
     
     
         16 . The liquid crystal display panel of  claim 1 , wherein the at least one light transmission portion is provided on each of the first substrate and the second substrate. 
     
     
         17 . The liquid crystal display panel of  claim 1 , wherein a portion of the sealing portion is located in the at least one light transmission portion. 
     
     
         18 . The liquid crystal display panel of  claim 1 , further comprising a display region and a non-display region, wherein the light shielding layer is provided in the non-display region. 
     
     
         19 . The liquid crystal display panel of  claim 1 , wherein a junction is located in the at least one light transmission portion. 
     
     
         20 . The liquid crystal display panel of  claim 1 , wherein the sealing portion includes a sealant made of at least one of a resin, a UV curable resin, and a photocurable resin.