Color filter substrate including processing key and method for fabricating the substrate
View Patent ↗A method for fabricating a color filter substrate of a liquid crystal display panel includes forming color filter layers and a process key pattern on a substrate, forming a black matrix to separate the color filter layers from one another, and forming an alignment layer on the substrate.
1. A color filter substrate of a liquid crystal display panel, comprising:
a substrate;
sub-color filters on the substrate;
a process key pattern on an edge of the substrate, wherein the process key pattern is provided with a process key region having a recessed portion,
and the process key pattern is formed of the same layer as one of the sub-color filter layers;
a black matrix disposed between the color filter layers separating the sub-color filter layers from one another; and
a process key formed in the recessed portion of the process key pattern and filled in the recessed portion of the process key pattern, wherein the process key is formed by a material forming the black matrix.
2. The substrate of claim 1 , wherein the sub-color filter layers are formed of a hydrophobic material.
3. The substrate of claim 1 , wherein the sub-color filter layers include at least one of polypropylene oxide, polybutylene oxide, polytetramethylene oxide and fatty polyester.
4. A color filter substrate of a liquid crystal display panel, comprising:
a substrate;
hydrophobic sub-color filter layers on the substrates;
a process key pattern on an edge of the substrate, wherein the process key pattern is provided with a process key region having a recessed portion, and the process key pattern is formed of the same layer as one of the hydrophobic sub-color filter layers;
a black matrix disposed between the hydrophobic sub-color filter layers separating the hydrophobic sub-color filter layers from one another;
a process key formed in the recessed portion of the process key pattern and filled in the recessed portion of the process key pattern, wherein the process key is formed of a same material forming the black matrix;
an overcoat layer on the hydrophobic sub-color filter layers, the black matrix and the process key;
a common electrode on the overcoat layer;
spacers on the common electrode; and
an alignment layer on the spacers and the common electrode.