A LIQUID CRYSTAL DISPLAY HAVING COLOR FILTERS WITH RECESS STRUCTURES

• US 20040105050A1
• Filed: 09/30/2003
• Published: 06/03/2004
• Est. Priority Date: 10/17/2002
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: Chi Mei Optoelectronics (InnoLux Corporation)
• Inventors: Hsu, Jui -Mei
• Granted Patent: US 7,212,259 B2
• Time in Patent Office: Days
• US Class Current: 349/106
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/133555 Transflectors
• CPC Class Codes: G02F 2203/03 scattering

Abstract

A liquid crystal display includes a lower substrate, an upper substrate positioned parallel with the lower substrate, and a plurality of pixel units between the lower substrate and the upper substrate. Each pixel unit includes an upper transparent electrode, a liquid crystal layer, a lower transparent electrode, and a color filter with recess structures.

Claims

1. A liquid crystal display comprising:

a lower substrate;

an upper substrate positioned parallel with the lower substrate; and

a plurality of pixel units, each of the pixel units including an upper transparent electrode, a liquid crystal layer, a lower transparent electrode, and a color filter;

wherein a surface of each color filter has a plurality of recess structures.

2. The liquid crystal display of claim 1 wherein a distribution density of the recess structures is used to regulate brightness and a color deepness of the liquid crystal display.

3. The liquid crystal display of claim 1 wherein each of the pixel units respectively comprises a reflection layer positioned between the color filter and the lower substrate.

4. The liquid crystal display of claim 3 being a reflective liquid crystal display.

5. The liquid crystal display of claim 3 wherein each of the reflection layers includes an opening.

6. The liquid crystal display of claim 5 being a semi-transmissive and semi-reflective liquid crystal display.

7. The liquid crystal display of claim 1 further comprising a plurality of thin film transistors for respectively controlling each of the pixel units.

8. A liquid crystal display comprising:

a lower substrate;

an upper substrate positioned parallel with the lower substrate; and

a plurality of pixel units, each of the pixel units including an upper transparent electrode, a liquid crystal layer, a lower transparent electrode, and a color filter;

wherein each of the color filters includes both a first region and a second region, and a surface of the first region has a plurality of recess structures.

9. The liquid crystal display of claim 8 wherein an area of the first region of the color filter is used to regulate brightness and a color deepness of the liquid crystal display.

10. The liquid crystal display of claim 8 wherein a distribution density of the recess structures is used to regulate brightness and a color deepness of the liquid crystal display.

11. The liquid crystal display of claim 8 wherein each of the pixel units respectively comprises a reflection layer positioned between the color filter and the lower substrate.

12. The liquid crystal display of claim 11 being a reflective liquid crystal display.

13. The liquid crystal display of claim 11 wherein each of the reflection layers respectively includes an opening opposite to the second region of each color filter.

14. The liquid crystal display of claim 13 being a semi-transmissive and semi-reflective liquid crystal display.

15. The liquid crystal display of claim 8 further comprising a plurality of thin film transistors for respectively controlling each of the pixel units.