LCD PANEL

• US 20080246902A1
• Filed: 04/08/2008
• Published: 10/09/2008
• Est. Priority Date: 04/09/2007
• Status: Abandoned Application

• Current Assignee: Chu-Liang Cheng
• Original Assignee: Chu-Liang Cheng
• Inventors: Cheng, Chu-Liang
• Application Number:
  US12/099,166
• Publication Number:
  US 20080246902A1
• Time in Patent Office: Days
• US Class Current: 349/69
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/133617 Illumination with ultraviolet light; Luminescent elements or materials associated to the cell

Abstract

A LCD panel is provided. The LCD panel includes a front substrate, a plurality of first phosphor composites, a plurality of second phosphor composites, a black matrix, a transparent electrode, a TFT array substrate and a liquid crystal layer. The liquid crystal layer is sandwiched between the front substrate and the TFT array substrate. The first phosphor composites, the second phosphor composites, the black matrix and the transparent electrode are disposed on the front substrate. The black matrix divides the front substrate into three windows including first windows, second windows and third windows periodically, wherein the first phosphor composites are disposed on the first windows, and the second phosphor composites are disposed on the second windows. The first phosphor composites and the second phosphor composites are capable of converting the primary light shinning towards the LCD panel into different colors respectively.

Claims

1. A LCD panel, comprising:

a front substrate;

a plurality of first phosphor composites;

a plurality of second phosphor composites, wherein the first phosphor composites and the second phosphor composites are capable of converting a primary light shinning towards the LCD panel into different colors respectively;

a transparent electrode;

a black matrix, dividing the front substrate into three windows comprising first windows, second windows and third windows periodically, wherein the first phosphor composites are disposed on the first windows, and the second phosphor composites are disposed on the second windows, wherein the first phosphor composites, the second phosphor composites, the black matrix and the transparent electrode are disposed on the front substrate;

a TFT array substrate, comprising a back substrate, a plurality of TFTs and a plurality of sub-pixel electrodes, wherein the TFTs and the sub-pixel electrodes are disposed on the back substrate, and the sub-pixel electrodes are opposite to the windows; and

a liquid crystal layer, sandwiched between the front substrate and the TFT array substrate.

2. The LCD panel of claim 1, wherein the wavelength of the primary light is ranging from 400 nm to 490 nm, the first phosphor composites are capable of converting the primary light into a light with wavelength ranging from 590 nm to 700 nm, and the second phosphor composites are capable of converting the primary light into a light with wavelength ranging from 490 nm to 590 nm.

3. The LCD panel of claim 1, wherein the primary light is derived from light emitting diodes, or laser diode, or fluorescent lamp.

4. The LCD panel of claim 1, further comprising a plurality of third phosphor composites, wherein the third phosphor composites are disposed on the third windows.

5. The LCD panel of claim 4, wherein the wavelength of the primary light is ranging from 300 nm to 490 nm, the first phosphor composites are capable of converting the primary light into a light with wavelength ranging from 590 nm to 700 nm, the second phosphor composites are capable of converting the primary light into a light with wavelength ranging from 490 nm to 590 nm, and the third phosphor composites are capable of converting the primary light into a light with wavelength ranging from 400 nm to 490 nm.

6. The LCD panel of claim 1, further comprising a filter, wherein the filter is above the phosphor composites in a viewing direction of the LCD panel.

7. The LCD panel of claim 6, wherein the filter is sandwiched between the phosphor composites and the front substrate.

8. The LCD panel of claim 6, wherein the filter is a primary light blocking filter.

9. The LCD panel of claim 6, wherein the filter is a band pass filter or multiple band pass filter through which the spectral widths of the converted lights by the phosphor composites can be reduced.

10. A LCD panel, comprising:

a front substrate;

a transparent electrode;

a black matrix, dividing the front substrate into three windows comprising first windows, second windows and third windows periodically, wherein the black matrix and the transparent electrode are disposed on the front substrate;

a TFT array substrate, comprising a back substrate, a plurality of TFTs and a plurality of sub-pixel electrodes, wherein the TFTs and the sub-pixel electrodes are disposed on the back substrate, and the sub-pixel electrodes are opposite to the windows of the front substrate defined by the black matrix;

a liquid crystal layer, sandwiched between the front substrate and the TFT array substrate;

a plurality of first phosphor composites; and

a plurality of second phosphor composites, wherein the first phosphor composites are opposite to the first windows, and the second phosphor composites are opposite to the second windows, wherein the first phosphor composites and the second phosphor composites are placed under the back substrate, and the first phosphor composites and the second phosphor composites are capable of converting a primary light into different colors respectively.

11. The LCD panel of claim 10, wherein the first phosphor composites and the second phosphor composites are disposed on the back substrate.

12. The LCD panel of claim 10, further comprising a transparent substrate disposed under the TFT array substrate, wherein the first phosphor composites and the second phosphor composites are disposed on.

13. The LCD panel of claim 10, wherein the wavelength of the primary light is ranging from 400 nm to 490 nm, the first phosphor composites are capable of converting the primary light into a light with wavelength ranging from 590 nm to 700 nm, and the second phosphor composites are capable of converting the primary light into a light with wavelength ranging from 490 nm to 590 nm.

14. The LCD panel of claim 10, wherein the primary light is derived from light emitting diodes, or laser diode, or fluorescent lamp.

15. The LCD panel of claim 10, further comprising a plurality of third phosphor composites, wherein the third phosphor composites are opposite to the third windows, wherein the first phosphor composites and the second phosphor composites and the third phosphor composites are placed under the back substrate, and the first phosphor composites and the second phosphor composites and the third phosphor composites are capable of converting the primary light into different colors respectively.

16. The LCD panel of claim 15, wherein the first phosphor composites and the second phosphor composites and the third phosphor composites are disposed on the back substrate.

17. The LCD panel of claim 15, further comprising a transparent substrate disposed under the TFT array substrate, wherein the first phosphor composites and the second phosphor composites and the third phosphor composites are disposed on.

18. The LCD panel of claim 15, wherein the wavelength of the primary light is ranging from 300 nm to 490 nm, the first phosphor composites are capable of converting the primary light into a light with wavelength ranging from 590 nm to 700 nm, the second phosphor composites are capable of converting the primary light into a light with wavelength ranging from 490 nm to 590 nm, and the third phosphor composites are capable of converting the primary light into a light with wavelength ranging from 400 nm to 490 nm.

19. The LCD panel of claim 10, further comprising a filter, wherein the filter is above the phosphor composites in a viewing direction of the LCD panel.

20. The LCD panel of claim 19, wherein the filter is between the phosphor composites and the back substrate.

21. The LCD panel of claim 19, wherein the filter is disposed on a transparent substrate.

22. The LCD panel of claim 19, wherein the filter is a primary light blocking filter.

23. The LCD panel of claim 19, wherein the filter is a band pass filter or multiple band pass filter through which the spectral widths of the converted lights by the phosphor composites can be reduced.