公开(公告)号：US20020089615A1

公开(公告)日：2002-07-11

申请号：US10042144

申请日：2002-01-11

Applicant: NEC CORPORATION

Inventor： Michiaki Sakamoto ,  Yuji Yamamoto ,  Mamoru Okamoto ,  Shigeru Kimura ,  Shinichi Nakata ,  Shouichi Kuroha ,  Masanobu Hidehira ,  Yoshitaka Horie ,  Takayuki Ishino

IPC: G02F001/136

CPC classification number: G02F1/136209 ,  G02F1/133514 ,  G02F1/136227

Abstract: A liquid crystal display device is made up of a TFT substrate, an opposed substrate and a liquid crystal layer arranged between these substrates, in which the TFT substrate is provided with gate lines, data lines and TFT on its transparent insulative substrate, in addition, a passivation film is provided so as to cover them. Color filter is provided on the passivation film, and black matrix is provided at corresponding area to above part of the TFT and to above part of the data line on the color filter. In addition, a first overcoat layer with film thickness of degree of 1 to 3 nullm is provided so as to cover the black matrix. Further, a second overcoat layer with film thickness of approximate 0.5 nullm is provided at the whole surface except for a contact hole. Furthermore, a pixel electrode is provided on pixel formation area on the second overcoat layer.

Abstract translation: 液晶显示装置由TFT基板，相对基板和布置在这些基板之间的液晶层构成，其中TFT基板在其透明绝缘基板上设置有栅极线，数据线和TFT，另外， 提供钝化膜以覆盖它们。 在钝化膜上提供彩色滤光片，并且黑色矩阵设置在TFT上方的相应区域和彩色滤光片上数据线的上方。 此外，设置膜厚度为1〜3μm的第一覆盖层，以覆盖黑矩阵。 此外，除了接触孔之外，在整个表面上设置膜厚约为0.5μm的第二外涂层。 此外，像素电极设置在第二外涂层上的像素形成区域上。