发明授权
- 专利标题: Reflection type liquid crystal display device with half tone exposure and method for making same
- 专利标题(中): 具有半色调曝光的反射型液晶显示装置及其制造方法
-
申请号: US11504026申请日: 2006-08-15
-
公开(公告)号: US07623204B2公开(公告)日: 2009-11-24
- 发明人: Hiroshi Sakurai , Hidenori Ikeno , Yuichi Yamaguchi , Hiroshi Kano
- 申请人: Hiroshi Sakurai , Hidenori Ikeno , Yuichi Yamaguchi , Hiroshi Kano
- 申请人地址: JP Kanagawa
- 专利权人: NEC LCD Technologies Ltd.
- 当前专利权人: NEC LCD Technologies Ltd.
- 当前专利权人地址: JP Kanagawa
- 代理机构: Young & Thompson
- 优先权: JP2000-364559 20001130
- 主分类号: G02F1/1343
- IPC分类号: G02F1/1343 ; G02F1/1335
摘要:
A reflection type liquid crystal display device having excellent display capability even if the number of the photolithography process is reduced and a process for producing the device. A process includes the steps of (a) forming a source/drain wiring by using a first mask; (b) forming a thin film transistor region and gate wiring by using a second mask; (c) forming an opening for a transistor, in a passivation film by using a third mask; (d) forming a rough surface of the interlayer insulating film and to form an opening for the transistor by using a fourth mask by halftone exposure, and (e) forming a reflective metal which extend through the respective openings for the transistor in the passivation film and the interlayer insulating film so that it is electrically connected to the source wiring by using a fifth mask.
公开/授权文献
信息查询
IPC分类: