Color filter substrate for transflective liquid crystal display device with particular diffusive buffer layers and method of manufacturing the same

1. A color filter substrate for a transfective liquid crystal display device, comprising:

a substrate having a transmissive area and a reflective area;

a buffer layer on the substrate, the buffer layer corresponding to the reflective area and having scattering source materials;

a color filter on the buffer layer; and

a common electrode on the color filter.

2. The color filter substrate according to claim 1 , further comprising a black matrix on the substrate.

3. The color filter substrate according to claim 1 , wherein the color filter of the transmissive area is thicker than the color filter of the reflective area.

4. The color filter substrate according to claim 3 , wherein the color filter of the transmissive area is about twice the thickness of the color filter of the reflective area.

5. The color filter substrate according to claim 1 , wherein the buffer layer is made of one of benzocyclobutene (BCB) and acrylic resin.

6. The color filter substrate according to claim 1 , wherein a refractive index of the buffer layer is different from a refractive index of the scattering source material.

7. The color filter substrate according to claim 1 , wherein the color filter is composed of three sub-color filters of red, green, and blue.

8. The color filter substrate according to claim 1 , wherein the black matrix is made of a black resin.

9. A method of fabricating a color filter substrate for a transflective liquid crystal display (LCD) device, comprising:

providing a substrate having a transmissive area and a reflective area;

forming a buffer layer on the substrate, the buffer layer corresponding to the reflective area and having scattering source materials;

forming a color filter on the buffer layer; and

forming a common electrode on the color filter.

10. The method according to claim 9 , further comprising forming a black matrix on the substrate.

11. The method according to claim 10 , wherein the black matrix is made of a black resin.

12. The method according to claim 9 , wherein forming the color filter includes providing a color filter of the transmissive area thicker than the color filter of the reflective area.

13. The method according to claim 12 , wherein forming the color filter includes providing a color filter of the transmissive area about twice the thickness of the reflective area.

14. The method according to claim 9 , wherein the buffer layer is made of one of benzocyclobutene (BCB) and acrylic resin.

15. The method according to claim 9 , wherein a refractive index of the buffer layer is different from a refractive index of the scattering source material.

16. The method according to claim 9 , wherein forming a color filter includes coating a photosensitive color resin and patterning the photosensitive color resin.

17. The method according to claim 9 , wherein forming a common electrode includes depositing a transparent conductive material by sputtering and patterning the transparent conductive material.

18. The method according to claim 9 , wherein the color filter is composed of three sub-color filters of red, green, and blue.

19. A color filter substrate for a transfective liquid crystal display device, comprising:

a substrate having a transmissive area and a reflective area;

a buffer layer on the reflective area of the substrate;

scattering source materials arranged within the buffer layer;

a color filter on the buffer layer; and

a common electrode on the color filter.

20. The color filter substrate of claim 19 , wherein

the buffer layer has a first refractive index, and

the scattering source materials have a second refractive index different from the first refractive index.