Transflective liquid crystal display device having a color filter and method for fabricating thereof
View Patent ↗A color filter substrate for a liquid crystal display device and method of fabricating the color filter substrate are provided. The color filter substrate includes a base substrate having a transmissive portion and a reflective portion, the transmissive portion having a groove, a color filter layer on the base substrate, and a black matrix on the color filter layer.
1. A method of fabricating a color filter substrate for a display device, comprising:
forming an opaque metal pattern on a base substrate, the base substrate having a transmissive portion and a reflective portion, the opaque metal pattern being formed at the reflective portion;
forming a plurality of buffer patterns by selectively etching the base substrate using the opaque metal pattern as a mask, the plurality of buffer patterns having a substantially uneven shape;
forming a black matrix on the plurality of the buffer patterns by selectively removing the opaque metal pattern; and
forming a color filter layer at the transmissive and reflective portions.
2. The method according to claim 1 , wherein the plurality of buffer patterns have a uniform pitch.
3. The method according to claim 2 , wherein the pitch is within a range of about 14 to 45 micrometers.
4. The method according to claim 1 , wherein the base substrate is made of glass.
5. The method according to claim 1 , wherein a bottom surface of the plurality of the buffer patterns is located higher than a top surface of the transmissive portion of the base substrate.
6. The method according to claim 5 , further comprising:
etching only the transmissive portion of the base substrate.
7. A method of fabricating a color filter substrate for a display device, comprising:
forming an opaque metal pattern on a base substrate, the base substrate having a transmissive portion and a reflective portion, the opaque metal pattern being formed at the reflective portion;
forming a plurality of buffer patterns at the reflective portion by selectively removing the base substrate using the opaque metal pattern as a mask;
forming a black matrix on the base substrate by selectively removing the opaque metal pattern; and
forming a color filter layer at the transmissive and reflective portions.
8. The method according to claim 7 , wherein the plurality of buffer patterns have a substantially uneven shape.
9. The method according to claim 8 , wherein the plurality of buffer patterns have a uniform pitch.
10. The method according to claim 9 , wherein the pitch is within a range of about 14 to 45 micrometers.
11. The method according to claim 7 , wherein the base substrate is made of glass.