LIQUID CRYSTAL DISPLAY MODULE

• US 20110128475A1
• Filed: 09/09/2010
• Published: 06/02/2011
• Est. Priority Date: 12/02/2009
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Lee, Kyung Ha, Kim, Eung Do, PARK, Jong Sin, Park, Se Hong
• Granted Patent: US 8,687,150 B2
• Time in Patent Office: Days
• US Class Current: 349/96
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/133524 Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G02F 2201/52 RGB geometrical arrangements

Abstract

Disclosed is a liquid crystal display module that improves luminance of a liquid crystal panel by enhancing a light transmittance. The liquid crystal display module comprises a liquid crystal panel with plural unit pixels for converting incident light into colored light, wherein each unit pixel includes red (R), green (G), blue (B), and white (W) sub-pixels; a light source for supplying light to the liquid crystal panel; an optical member for guiding light emitted from the light source toward a frontal direction of the liquid crystal panel; and a polarizing means including a polarization area for polarizing the light outgoing from the liquid crystal panel, and a hole for transmitting the light therethrough.

Claims

1. A liquid crystal display module comprising:

a liquid crystal panel with plural unit pixels, wherein each unit pixel includes red (R), green (G), blue (B), and white (W) sub-pixels, for converting incident light into colored light;

a light source for supplying light to the liquid crystal panel;

an optical member for guiding light emitted from the light source toward a frontal direction of the liquid crystal panel; and

a polarizing means including a polarization area for polarizing the light outgoing from the liquid crystal panel, and a hole for transmitting the light therethrough.

2. The liquid crystal display module according to claim 1, wherein the polarizing means is formed of a wire grid polarizer (WGP) including a nano-sized grid pattern with metal conductor lines arranged at a predetermined pitch.

3. The liquid crystal display module according to claim 2, wherein the hole of the polarizing means is formed in an area corresponding to at least one of the red (R), green (G), blue (B), and white (W) sub-pixels.

4. The liquid crystal display module according to claim 2, wherein the hole of the polarizing means is provided every unit pixels.

5. The liquid crystal display module according to claim 2, wherein a color filter layer of the white (W) sub-pixel is formed of transparent photoresist.

6. A liquid crystal display module comprising:

a liquid crystal panel with plural unit pixels, wherein each unit pixel includes red (R), green (G), and blue (B) sub-pixels, for converting incident light into colored light;

a light source for supplying light to the liquid crystal panel;

an optical member for guiding light emitted from the light source toward a frontal direction of the liquid crystal panel; and

a polarizing means including a polarization area for polarizing the light outgoing from the liquid crystal panel, and a hole for transmitting the light therethrough.

7. The liquid crystal display module according to claim 6, wherein the polarizing means is formed of a wire grid polarizer (WGP) including a nano-sized grid pattern with metal conductor lines arranged at a predetermined pitch.

8. The liquid crystal display module according to claim 7, wherein each of the red (R), green (G), and blue (B) color filter layers includes a hole to transmit the light therethrough.

9. The liquid crystal display module according to claim 8, wherein the hole of the polarizing means is positioned in an area corresponding to the hole of the color filter layer.

10. The liquid crystal display module according to claim 7, wherein the hole of the polarizing plate is provided every unit pixel.