Display device

Patent metadata

Field	Value
Publication number	US-12092920-B2
Application number	US-202117758337-A
Country	US
Kind code	B2
Filing date	Aug 4, 2021
Priority date	Sep 28, 2020
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

The present disclosure provides a display device. The display device includes: a liquid crystal display panel; a liquid crystal light control panel located on the light incident side of the liquid crystal display panel; and at least two haze layers located on the light emitting side of the liquid crystal display panel.

First claim

What is claimed is:

1. A display device, comprising:
a liquid crystal display panel;
a liquid crystal light control panel, on a light incident side of the liquid crystal display panel; and
at least two haze layers, on a light emitting side of the liquid crystal display panel;
at least two polarizers, on the light emitting side of the liquid crystal display panel;
wherein the at least two polarizers comprise: a first polarizer and a second polarizer disposed in stacked;
the first polarizer is disposed on a side of the second polarizer facing away from the liquid crystal display panel;
wherein both of the first polarizer and the second polarizer comprise:
a first protection layer;
a second protection layer, disposed opposite to the first protection layer;
a polarization layer, between the first protection layer and the second protection layer; and
a pressure-sensitive adhesive layer, disposed on a side of the first protection layer facing away from the polarization layer;
wherein the first polarizer comprises one of the at least two haze layers; and the second polarizer comprises another of the at least two haze layers; and
at least one of the at least two haze layers, disposed on a side of the polarization layer of the second polarizer facing away from the liquid crystal display panel.

2. The display device according to claim 1 , wherein the first polarizer comprises:
a first haze layer, which is the pressure-sensitive adhesive layer of the first polarizer disposed on a side of the first protection layer of the first polarizer facing away from the polarization layer of the first polarizer; and
the first polarizer and the second polarizer are bonded through the first haze layer.

3. The display device according to claim 2 , wherein the second polarizer comprises:
a second haze layer, which is the pressure-sensitive adhesive layer of the second polarizer disposed on a side of the first protection layer of the second polarizer facing away from the polarization layer of the second polarizer; and
the second haze layer is disposed at a side of the polarization layer of the second polarizer close to the liquid crystal display panel.

4. The display device according to claim 2 , wherein the second polarizer comprises:
a second haze layer, which is the pressure-sensitive adhesive layer of the second polarizer disposed on a side of the first protection layer of the second polarizer facing away from the polarization layer of the second polarizer;
the second haze layer is disposed at a side of the polarization layer of the second polarizer facing away from the liquid crystal display panel; and
the first polarizer and the second polarizer are bonded through the first haze layer and the second haze layer.

5. The display device according to claim 1 , wherein one of the at least two haze layers comprises:
a pressure-sensitive adhesive; and
dispersed particles, at least dispersed in the pressure-sensitive adhesive.

6. The display device according to claim 5 , wherein the dispersed particles at least comprise: first dispersed particles and second dispersed particles; and
diameters of the second dispersed particles are greater than diameters of the first dispersed particles.

7. The display device according to claim 6 , wherein the first dispersed particles are dispersed in the pressure-sensitive adhesive; and
at least part of the second dispersed particles are dispersed on a surface of the pressure-sensitive adhesive.

8. The display device according to claim 5 , wherein a diameter of the dispersed particle ranges from 1 micrometer to 10 micrometers.

9. The display device according to claim 5 , wherein a haze of the haze layer ranges from 50% to 70%.

10. The display device according to claim 1 , wherein a gate signal line of the liquid crystal display panel is parallel with a gate signal line of the liquid crystal light control panel.

11. The display device according to claim 1 , wherein the display device further comprises: a first anti-glare reflecting layer and a second anti-glare reflecting layer;
the first anti-glare reflecting layer is disposed on a side of the second protection layer of the first polarizer facing away from the liquid crystal display panel; and
the second anti-glare reflecting layer is disposed on a side of the second protection layer of the second polarizer facing away from the liquid crystal display panel.

12. The display device according to claim 1 , wherein the display device further comprises: a first anti-glare reflecting layer and a second anti-glare reflecting layer;
the first anti-glare reflecting layer is disposed on a side of the second protection layer of the first polarizer facing away from the liquid crystal display panel; and
the second anti-glare reflecting layer is disposed on a side of the second protection layer of the second polarizer close to the liquid crystal display panel.

13. The display device according to claim 1 , wherein a material of the first protection layer comprises at least one of: polyethylene terephthalate, acrylic, cyclo olefin polymer, or triacetyl cellulose.

14. The display device according to claim 1 , wherein a material of the second protection layer comprises at least one of: polyethylene terephthalate, acrylic, cyclo olefin polymer, or triacetyl cellulose.

15. The display device according to claim 1 , wherein a material of the first protection layer and a material of the second protection layer are a same.

Assignees

• Hefei Boe Display Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Zhang Lin
• Liao Yanping
• Guo Lei
• Dai Ke
• Tian Li

Classifications

• G02F2202/28

  Adhesive materials or arrangements · CPC title

• G02F2201/50

  Protective arrangements · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title

• G02F1/1347

  Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells · CPC title

• G02F1/133502

  Antiglare, refractive index matching layers · CPC title