Liquid crystal display device and manufacturing method thereof

Abstract

It is possible to separate each liquid crystal display panel from a mother board in which multiple liquid crystal display panels are formed even with a thin glass substrate, by forming a columnar spacer in the boundary between liquid crystal display panels, forming a scribe line corresponding to the columnar spacer on both sides of the counter substrate and the TFT substrate in the mother board, and forming a separation line between the scribe lines by applying a bending stress to the mother board. Since the columnar spacer is formed in a portion corresponding to the scribe line, the strength in this portion increases, so that the proper scribe lines and break lines can be formed when the thickness of the glass substrate is reduced to about 0.15 mm.

What is claimed is: 
     
         1 . A liquid crystal display device comprising:
 a TFT substrate having a plurality of pixels provided in a display area;   an outer circuit mounted on the TFT substrate in a terminal portion;   a counter substrate opposed to the TFT substrate except at the terminal portion, and having a black matrix layer and a color filter layer provided on the black matrix layer;   spacers, comprising a first spacer and a second spacer, provided between the TFT substrate and the counter substrate; and   a sealing material bonding the TFT substrate and the counter substrate in a peripheral area,   wherein   the peripheral area surrounds the display area,   the first spacer is located in the peripheral area between the display area and the terminal portion,   the second spacer is located in the peripheral area other than the peripheral area between the display area and the terminal portion, and overlaps with the sealing material in a plan view, and   the first spacer overlaps with one of the black matrix layer and the color filter layer in a plan view and is in contact with the TFT substrate and the counter substrate.   
     
     
         2 . The liquid crystal display device according to  claim 1 ,
 wherein the first spacer is not in contact with the sealing material.   
     
     
         3 . The liquid crystal display device according to  claim 2 ,
 wherein the sealing material is not located between the first spacer and the TFT substrate.   
     
     
         4 . The liquid crystal display device according to  claim 3 ,
 wherein the sealing material is not located between the first spacer and the counter substrate.   
     
     
         5 . The liquid crystal display device according to  claim 1 , further comprising the counter substrate having an overcoat layer provided on the color filter layer,
 wherein the first spacer and the second spacer are provided on the overcoat layer.   
     
     
         6 . The liquid crystal display device according to  claim 1 ,
 wherein the second spacers are aligned in line with an interval of a distance w 2  along an end of the counter substrate,   a width of the second spacer along the end of the counter substrate is w 1 , and   w 1  is greater than w 2 .   
     
     
         7 . The liquid crystal display device according to  claim 1 ,
 wherein the first spacers are aligned in line with an interval of a distance w 2  along an end of the counter substrate,   a width of the first spacer along the end of the counter substrate is w 1 , and   wherein w 1  is greater than w 2 .   
     
     
         8 . The liquid crystal display device according to  claim 1 , further comprising the TFT substrate having an insulation layer,
 wherein the sealing material is provided on the insulation layer,   a part of the sealing material is located between the second spacer and the insulation layer.   
     
     
         9 . The liquid crystal display device according to  claim 8 ,
 wherein the insulation layer includes a plurality of insulation films, and   thin film transistors are located between one of the plurality of insulation films and another of the plurality of insulation films.   
     
     
         10 . The liquid crystal display device according to  claim 9 ,
 wherein the plurality of insulation films comprise a gate insulation film, an interlayer insulation film, an inorganic passivation film, and an organic passivation film.