- 专利标题: Color liquid crystal display apparatus
-
申请号: US698406申请日: 1996-08-15
-
公开(公告)号: US5815232A公开(公告)日: 1998-09-29
- 发明人: Daisuke Miyazaki , Shoichi Kurauchi , Hitoshi Hatoh , Takeshi Yamamoto , Teruyuki Midorikawa
- 申请人: Daisuke Miyazaki , Shoichi Kurauchi , Hitoshi Hatoh , Takeshi Yamamoto , Teruyuki Midorikawa
- 申请人地址: JPX Kanagawa-ken
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JPX Kanagawa-ken
- 优先权: JPX7-210320 19950818; JPX7-228967 19950906
- 主分类号: G02B5/20
- IPC分类号: G02B5/20 ; G02F1/1335 ; G02F1/1339
摘要:
A color filter substrate has a substrate structure, spacers which include a first spacer layer and a plurality of second spacer layers. Each of the second spacer layers has a sectional plane which is substantially parallel to the substrate structure. And the sectional plane has a entire projective area of the first spacer layer therein and an elongated portion from the projective area, so that an area of effective thickness of the spacer to maintain the gap between two substrates depends on an area of a smaller of the first and second surfaces of the first spacer layer. In other words, the outline of the first spacer layer is located so as to be entirely included within the outline of these second spacer layers. If the central axis of the first spacer layer is shifted from that of the second spacer layers in the manufacturing process of the liquid crystal display apparatus, misalignment between first and second spacer layers occurs. The degree of the misalignment depends on the accuracy of the photo-etching technique. On account of the portion, above misalignment is absorbed and the first spacer layer is entirely located on the second spacer layers. In this occasion, the effective thickness of the spacer is established over the whole projective area of the first spacer layer on the substrate, Therefore, regardless of the position within the liquid crystal display apparatus panel or the production lot, the gap uniformity between two substrates is gained. An island shape spacer is positioned at the liquid crystal injection area, so that the gap between the two substrates at the liquid crystal injection area is uniform.