发明授权
- 专利标题: Electrode plate structure for liquid crystal color display device
- 专利标题(中): 电极板结构用于液晶彩色显示装置
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申请号: US970784申请日: 1992-11-03
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公开(公告)号: US5278683A公开(公告)日: 1994-01-11
- 发明人: Naoya Nishida , Masaaki Suzuki , Toshifumi Yoshioka
- 申请人: Naoya Nishida , Masaaki Suzuki , Toshifumi Yoshioka
- 申请人地址: JPX Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX1-87936 19900718
- 主分类号: G02F1/1333
- IPC分类号: G02F1/1333 ; C23F1/00 ; G02F1/1335 ; G02F1/1343 ; G03F7/00 ; G09G3/36 ; H01B5/14 ; G02F1/13
摘要:
An electrode plate structure for a liquid crystal color display is produced by forming a color filter layer of a photosensitive polyamide resin containing a colorant dispersed therein; disposing a protective layer of a photosensitive polyamide resin on the color filter layer; forming an ITO (indium-tin-oxide) film on the protective layer, preferably at an elevated temperature of at most 270.degree. C.; post-annealing the ITO film at a temperature of 200.degree.-300.degree. C. for improving the crystallinity of the ITO film suitable for etching; and selectively etching the ITO film patternwise with an etchant of hydroiodic acid or a hydroiodic acid-ferric chloride aqueous solution mixture to leave an ITO electrode pattern.
公开/授权文献
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