
US Patent No: 5,718,992
Number of patents in Portfolio can not be more than 2000
Substrate having light shielding layer
Stats
-
Feb 17, 1998
Issued date -
Nov 6, 1996
filing date -
08/743,888
serial no -
Expired
status
Importance
Abstract
A method for preparing a substrate having a light-shielding layer involves forming a photosensitive coating film on a transparent electrically conductive layer formed on a transparent substrate, exposing the photosensitive coating film via a mask exhibiting light transmitting properties, removing and developing the coating film for exposing the transparent electrically conductive layer and electrodepositing a dark-hued coating on the exposed transparent electrically conductive layer for forming the light-shielding layer, and heating the light-shielding layer. The substrate having the light-shielding layer has a volume resistivity of 1.times.10.sup.2 ohm.cm or higher and may be used for a counterelectrode substrate for a TFT array substrate incorporated in a liquid crystal display device.
First Claim
Related Publications
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 4,902,592 Production of color display | 22 | 1988 | |
| 5,142,391 Liquid-crystal display device of optical writing type having a light absorbing layer composed of a carbon-dispersed system coating | 12 | 1991 | |
| 5,186,801 Production of color filter | 10 | 1991 | |
|
|
|||
| 5,527,649 Method for forming a substrate having a light shielding layer | 17 | 1994 | |
|
|
|||
| 5,372,902 Method for producing color filter | 11 | 1993 | |
|
|
|||
| 5,422,207 Method for producing color filter | 12 | 1993 | |