Liquid crystal display

Patent metadata

Field	Value
Publication number	US-9766493-B2
Application number	US-201514762471-A
Country	US
Kind code	B2
Filing date	May 20, 2015
Priority date	Apr 3, 2015
Publication date	Sep 19, 2017
Grant date	Sep 19, 2017

Abstract

The liquid crystal display provided by the present invention acquires the light of linear polarization by doping the quantum-dot material in the color resist layer to excite the quantum-dots by the backlight to form the light of a certain light spectrum and cooperating with the anisotropic polarization layer manufactured by organic dye molecules for selectively allowing the light of different polarization states to pass through. The light leakage issue due to the light polarization state change caused by the quantum-dot material can be effectively solved to raise the contrast ratio. The polarization layer can be employed to replace the upper or the lower polarizer, and thus, one polarizer attachment process can be omitted to simplify the process, to save the cost and meanwhile to achieve better polarization result.

First claim

What is claimed is:

1. A liquid crystal display, comprising a backlight module, and a liquid crystal panel positioned on the backlight module, and the liquid crystal panel comprises a color resist layer and a polarization layer, and the color resist layer is a color resist layer doped with quantum-dot material, and the polarization layer is an anisotropic dye film manufactured by organic dye molecules;
wherein the liquid crystal panel comprises an array substrate, an upper substrate positioned above the array substrate, an upper polarizer on the upper substrate, and a liquid crystal layer positioned between the array substrate and the upper substrate, and the array substrate comprises a first glass substrate, a TFT layer positioned on the first glass substrate, the color resistor layer positioned on the TFT layer, a pixel electrode layer positioned on the color resist layer, the polarization layer positioned on the pixel electrode layer and a first alignment layer positioned on the polarization layer, the upper substrate comprises a second glass substrate, a black matrix positioned on the second glass substrate and a second alignment layer positioned on the black matrix, and the first alignment layer on the array substrate and the second alignment layer on the upper substrate are oppositely positioned, and the liquid crystal layer is positioned between the first alignment layer and the second alignment layer.

2. The liquid crystal display according to claim 1 , wherein the polarization layer is manufactured by ink injecting or spin coating.

3. The liquid crystal display according to claim 1 , wherein the polarization layer is manufactured by evaporation.

4. The liquid crystal display according to claim 1 , wherein the polarization layer achieves a high polarizing efficiency by a rubbing process.

5. The liquid crystal display according to claim 1 , wherein the organic dye molecules are dye molecules possessing polarized light property.

6. The liquid crystal display according to claim 5 , wherein the dye molecules possessing polarized light property are trisazo dye.

7. The liquid crystal display according to claim 6 , wherein a constitutional formula of the trisazo dye is:

8. A liquid crystal display, comprising a backlight module, and a liquid crystal panel positioned on the backlight module, and the liquid crystal panel comprises a color resist layer and a polarization layer, and the color resist layer is a color resist layer doped with quantum-dot material, and the polarization layer is an anisotropic dye film manufactured by organic dye molecules;
wherein the liquid crystal panel comprises an array substrate, a lower polarizer under the array substrate, a CF substrate positioned above the array substrate and a liquid crystal layer positioned between the array substrate and the CF substrate, and the array substrate comprises a first glass substrate, a TFT layer positioned on the first glass substrate, a first alignment layer positioned on the TFT layer; the CF substrate comprises a second glass substrate, a black matrix positioned on the second glass substrate, the color resist layer positioned on the black matrix, a common electrode layer positioned on the color resist layer, the polarization layer positioned on the common electrode layer and a second alignment layer positioned on the polarization layer, and the first alignment layer on the array substrate and the second alignment layer on the CF substrate are oppositely positioned, and the liquid crystal layer is positioned between the first alignment layer and the second alignment layer.

9. The liquid crystal display according to claim 8 , wherein the liquid crystal panel further comprises an upper polarizer positioned on the CF substrate.

10. liquid crystal display according to claim 3 , wherein the polarization layer achieves a high polarizing efficiency by a rubbing process.

11. The liquid crystal display according to claim 3 , wherein the organic dye molecules are dye molecules possessing polarized light property.

12. The liquid crystal display according to claim 11 , wherein the dye molecules possessing polarized light property are trisazo dye.

13. A liquid crystal display, comprising a backlight module, and a liquid crystal panel positioned on the backlight module, and the liquid crystal panel comprises a color resist layer and a polarization layer, and the color resist layer is a color resist layer doped with quantum-dot material, and the polarization layer is an anisotropic dye film manufactured by organic dye molecules;
wherein the polarization layer achieves an high polarizing efficiency by a rubbing process;
wherein the organic dye molecules are dye molecules possessing polarized light property; and
wherein the liquid crystal panel comprises an array substrate, a lower polarizer under the array substrate, a CF substrate positioned above the array substrate and a liquid crystal layer positioned between the array substrate and the CF substrate, and the array substrate comprises a first glass substrate, a TFT layer positioned on the first glass substrate, a first alignment layer positioned on the TFT layer; the CF substrate comprises a second glass substrate, a black matrix positioned on the second glass substrate, the color resist layer positioned on the black matrix, a common electrode layer positioned on the color resist layer, the polarization layer positioned on the common electrode layer and a second alignment layer positioned on the polarization layer, and the first alignment layer on the array substrate and the second alignment layer on the CF substrate are oppositely positioned, and the liquid crystal layer is positioned between the first alignment layer and the second alignment layer.

14. The liquid crystal display according to claim 13 , wherein the liquid crystal panel further comprises an upper polarizer positioned on the CF substrate.

15. The liquid crystal display according to claim 13 , wherein the polarization layer is manufactured by ink injecting or spin coating.

16. The liquid crystal display according to claim 13 , wherein the polarization layer is manufactured by evaporation.

17. The liquid crystal display according to claim 13 , wherein the dye molecules possessing polarized light property are trisazo dye.

18. The liquid crystal display according to claim 17 , wherein a constitutional formula of the trisazo dye is:

19. A liquid crystal display, comprising a backlight module, and a liquid crystal panel positioned on the backlight module, and the liquid crystal panel comprises a color resist layer and a polarization layer, and the color resist layer is a color resist layer doped with quantum-dot material, and the polarization layer is an anisotropic dye film manufactured by organic dye molecules;
wherein the polarization layer achieves an high polarizing efficiency by a rubbing process;
wherein the organic dye molecules are dye molecules possessing polarized light property; and
wherein the liquid crystal panel comprises an array substrate, an upper substrate positioned above the array substrate, an upper polarizer on the upper substrate, and a liquid crystal layer positioned between the array substrate and the upper substrate, and the array substrate comprises a first glass substrate, a TFT layer positioned on the first glass substrate, the color resist layer pos

Assignees

• Shenzhen China Star Optoelect

Inventors

• Cheng Xiaoping
• Chen Hsiaohsien

Classifications

• G02F1/133514

  Colour filters · CPC title

• G02F2001/133302

  Physics · mapped topic

• G02F1/1335

  Structural association of cells with optical devices, e.g. polarisers or reflectors · CPC title

• G02F2202/36

  Micro- or nanomaterials · CPC title

• G02F1/133528 Primary

  Polarisers · CPC title