Substrate for liquid crystal display and method of fabricating the same
View Patent ↗A color filter substrate for a liquid crystal display includes a transparent substrate, and color filters formed on the substrate each with a groove. A transparent conductive layer is deposited onto the color filters to form a common electrode. A chrome layer and a chrome oxide layer are sequentially deposited onto the common electrode to form a black matrix layer. An organic film is formed on the black matrix layer. The organic film suffers ashing such that only the portion of the organic film placed over the groove is left over, and other portions are all removed while exposing the black matrix layer. The exposed portion of the black matrix layer is removed through etching. In this way, the color filter substrate is completed in a simple manner.
1. A method of fabricating a liquid crystal display, comprising steps of:
forming a color filter on a transparent substrate;
forming a groove on the color filter;
forming a first transparent conductive layer on the color filters;
depositing a black matrix layer onto the first transparent conductive layer;
forming a gap filler on the black matrix layer to fill the groove of each color filter; and
removing the exposed portion of the black matrix layer through etching.
2. The method of claim 1 , wherein the step of forming the gap filler comprises steps of:
coating an organic film onto the black matrix layer; and
ashing the organic film.
3. The method of claim 1 , wherein the step of forming the gap filler comprises steps of:
coating a photosensitive film onto the black matrix layer;
exposing the photosensitive film to light; and
developing the film.
4. The method of claim 1 , wherein the step of depositing the black matrix layer comprises steps of:
depositing a chrome layer on the first transparent conductive layer; and
depositing a chrome oxide layer on the chrome layer.
5. The method of claim 1 , further comprising a step of forming a second transparent conductive layer to cover the gap filler.