Liquid crystal display unit with spacers form in the light shielding regions

• US 5,777,713 A
• Filed: 06/17/1996
• Issued: 07/07/1998
• Est. Priority Date: 04/26/1995
• Status: Expired due to Term

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Kimura, Atsuo
• Primary Examiner(s): Sikes, William L.
• Assistant Examiner(s): Ngo, Julie
• Application Number:
  US08/666,682
• Time in Patent Office: 750 Days
• Field of Search: 349/153, 349/60, 349/155, 349/156
• US Class Current: 349/156
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/1339 Gaskets; Spacers; Sealing of cells
• CPC Class Codes: G02F 1/13394 spacers regularly patterned on the cell subtrate, e.g. walls, pillars G02F1/133377 takes precedence

Abstract

A liquid crystal display is disclosed having a substrate on which a pixel array region is formed. The pixel array region includes display electrodes. The display further includes a transparent counter substrate over which a transparent electrode is formed. The transparent electrode faces the pixel array on opposite side of the display electrodes. Spacers are formed on the outside region of the pixel array. Alternatively, the spacers are formed in light shielding regions of the pixel array in a width smaller than the width of the light shielding regions. The spacers are formed of a photo sensitive material having adhesive properties. The spacers bond the substrate to the transparent counter substrate and maintain a prescribed cell gap.

Claims

1. A liquid crystal display unit comprising:

a substrate having a plurality of display electrodes, on which a pixel array region having light shielding regions between said display electrodes,

a transparent counter substrate on which a transparent electrode facing to said pixel array region is formed, and

spacers formed in said light shielding regions on said substrate in a width smaller than the width of said light shielding regions, and adapted to bond said substrate to said transparent counter substrate maintaining a prescribed cell gap.

2. A liquid crystal display unit according to claim 1, wherein said spacers are formed as a plurality of narrow walls in parallel.

3. A liquid crystal display unit according to claim 1, wherein said spacers are formed of a photo sensitive material having adhesive properties.

4. A liquid crystal display unit according to claim 1, wherein said substrate is a silicon substrate, and said display electrodes are formed of a light reflecting material.