Reflective Liquid Crystal Display Panel and Display Device

Patent metadata

Field	Value
Publication number	US-2017192298-A1
Application number	US-201514898841-A
Country	US
Kind code	A1
Filing date	Dec 3, 2015
Priority date	Nov 26, 2015
Publication date	Jul 6, 2017
Grant date	—

Abstract

A reflective LCD panel includes a first and second substrates spaced apart from each other, a liquid crystal layer disposed between the first and second substrates, a common electrode layer disposed on the side of the first substrate facing the liquid crystal layer, a scattering layer disposed on the side of the common electrode layer facing the liquid crystal layer, a specular reflector disposed on the side of the second substrate facing the liquid crystal layer. The present invention also proposes a display device. Through this arrangement, the light inputted from the first substrate and common electrode layer scatters when passing through the scattering layer, and produces specular reflection when it further inputted into the specular reflector through the liquid crystal layer. The present invention delivers diffuse reflection effect through the scattering layer and specular reflector, effectively lowering the production cost.

First claim

What is claimed is:

1 . A reflective liquid crystal display (LCD) panel, comprising:
a first substrate and a second substrate, spaced apart from each other; a liquid crystal layer, disposed between the first and second substrates; a common electrode layer, disposed on the side of the first substrate facing the liquid crystal layer; a scattering layer, being a transparent film added with scattering particles and disposed on the side of the common electrode layer facing the liquid crystal layer; a specular reflector, being a metal layer and disposed on the side of the second substrate facing the liquid crystal layer; wherein the light inputted through the first substrate and the common electrode layer scatters when passing through the scattering layer, and the scattered light inputs into the specular reflector through the liquid crystal layer and produces specular reflection.

2 . The reflective LCD panel of claim 1 , wherein the metal layer serves as the pixel electrode layer of the reflective LCD panel.

3 . The reflective LCD panel of claim 1 , wherein materials for the metal layer are silver or aluminum.

4 . The reflective LCD panel of claim 1 , wherein materials for the transparent film are resin, polyethylene or polyvinyl chloride (PVC).

5 . A reflective liquid crystal display (LCD) panel, comprising:
a first substrate and a second substrate, spaced apart from each other; a liquid crystal layer, disposed between the first and second substrates; a common electrode layer, disposed on the side of the first substrate facing the liquid crystal layer; a scattering layer, disposed on the side of the common electrode layer facing the liquid crystal layer; a specular reflector, disposed on the side of the second substrate facing the liquid crystal layer; wherein the light inputted through the first substrate and the common electrode layer scatters when passing through the scattering layer, and the scattered light inputs into the specular reflector through the liquid crystal layer and produces specular reflection.

6 . The reflective LCD panel of claim 5 , wherein the specular reflector is a metal layer.

7 . The reflective LCD panel of claim 6 , wherein the metal layer serves as the pixel electrode layer of the reflective LCD panel.

8 . The reflective LCD panel of claim 6 , wherein materials for the metal layer are silver or aluminum.

9 . The reflective LCD panel of claim 5 , wherein the scattering layer is a transparent film added with scattering particles.

10 . The reflective LCD panel of claim 9 , wherein materials for the transparent film are resin, polyethylene or polyvinyl chloride (PVC).

11 . The reflective LCD panel of claim 5 further comprising a color film polarizer disposed on a side of the first substrate opposite to the liquid crystal layer.

12 . The reflective LCD panel of claim 5 , wherein the first substrate is a color filter array substrate, and the second substrate is a thin film transistor array substrate.

13 . A display device, comprising a reflective liquid crystal display (LCD) panel, the reflective LCD panel comprising:
a first substrate and a second substrate, spaced apart from each other; a liquid crystal layer, disposed between the first and second substrates; a common electrode layer, disposed on the side of the first substrate facing the liquid crystal layer; a scattering layer, disposed on the side of the common electrode layer facing the liquid crystal layer; a specular reflector, disposed on the side of the second substrate facing the liquid crystal layer; wherein the light inputted through the first substrate and the common electrode layer scatters when passing through the scattering layer, and the scattered light inputs into the specular reflector through the liquid crystal layer and produces specular reflection.

14 . The display device of claim 13 , wherein the specular reflector is a metal layer.

15 . The display device of claim 14 , wherein the metal layer serves as the pixel electrode layer of the reflective LCD panel.

16 . The display device of claim 14 , wherein materials for the metal layer are silver or aluminum.

17 . The display device of claim 13 , wherein the scattering layer is a transparent film added with scattering particles.

18 . The display device of claim 17 , wherein materials for the transparent film are resin, polyethylene or polyvinyl chloride (PVC).

19 . The display device of claim 13 wherein the reflective LCD panel further comprises a color film polarizer disposed on a side of the first substrate opposite to the liquid crystal layer.

20 . The display device of claim 13 , wherein the first substrate is a color filter array substrate, and the second substrate is a thin film transistor array substrate.

Assignees

• Wuhan China Star Optoelectronics Technology Co Ltd

Inventors

• Xie Chang

Classifications

• G02F2201/123

  pixel · CPC title

• G02F2201/121

  common or background · CPC title

• G02F2201/34

  reflector · CPC title

• G02F1/13439

  characterised by their electrical, optical, physical properties; materials therefor; method of making · CPC title

• G02F1/133514

  Colour filters · CPC title