Display device

Patent metadata

Field	Value
Publication number	US-2016306226-A1
Application number	US-201615069835-A
Country	US
Kind code	A1
Filing date	Mar 14, 2016
Priority date	Apr 20, 2015
Publication date	Oct 20, 2016
Grant date	—

Abstract

A display device includes: a first substrate; a support layer defining a microcavity above the first substrate; a liquid crystal layer disposed in the microcavity; a planarization layer disposed on the support layer; and a blue-light transmission layer disposed between the support layer and the planarization layer. The display device has improved light extraction efficiency and process efficiency.

First claim

What is claimed is:

1 . A display device comprising:
a first substrate; a support layer defining a microcavity above the first substrate; a liquid crystal layer formed in the microcavity; a planarization layer disposed on the support layer; and a blue-light transmission layer disposed between the support layer and the planarization layer.

2 . The display device of claim 1 , further comprising:
a pixel electrode disposed below the support layer; and a common electrode disposed between the support layer and the planarization layer.

3 . The display device of claim 2 , wherein the blue-light transmission layer is disposed between the support layer and the common electrode.

4 . The display device of claim 2 , wherein the blue-light transmission layer is disposed between the common electrode and the planarization layer.

5 . The display device of claim 1 , further comprising a light blocking member disposed between the support layer and an adjacent support layer.

6 . The display device of claim 5 , wherein the blue-light transmission layer is disposed between the support layer and the light blocking member.

7 . The display device of claim 5 , wherein the blue-light transmission layer is disposed between the light blocking member and the planarization layer.

8 . The display device of claim 1 , further comprising:
a backlight unit disposed below the first substrate, the backlight unit comprising a light source; a second substrate disposed opposite to the first substrate; a color filter disposed on the second substrate; a first polarizing plate disposed below the liquid crystal layer; and a second polarizing plate disposed between the liquid crystal layer and the color filter.

9 . The display device of claim 8 , wherein the light source is a blue light source.

10 . The display device of claim 9 , wherein the color filter comprises a red color filter, a green color filter, and a transparent color filter, and the transparent color filter comprises light scattering particles.

11 . The display device of claim 10 , further comprising a blue-light blocking layer disposed on the red color filter and the green color filter.

12 . The display device of claim 1 , further comprising an alignment layer disposed on an inner surface of the support layer.

13 . A display device comprising:
a first substrate; a support layer defining a microcavity above the first substrate; a liquid crystal layer formed in the microcavity; a planarization layer disposed on the support layer; a second substrate disposed opposite to the first substrate; a color filter disposed on the second substrate; a first polarizing plate disposed below the liquid crystal layer; a second polarizing plate disposed between the liquid crystal layer and the color filter; and a blue-light blocking layer disposed between the planarization layer and the second polarizing plate.

14 . The display device of claim 13 , further comprising a patterned insulating layer disposed between the planarization layer and the second polarizing plate.

15 . The display device of claim 14 , wherein the blue-light blocking layer is disposed between the planarization layer and the patterned insulating layer.

16 . The display device of claim 14 , wherein the blue-light blocking layer is disposed between the patterned insulating layer and the second polarizing plate.

17 . The display device of claim 13 , further comprising a backlight unit, the backlight unit being disposed below the first substrate and comprising a light source.

18 . The display device of claim 17 , wherein the light source is a blue light source.

19 . The display device of claim 18 , wherein the color filter comprises a red color filter, a green color filter, and a transparent color filter, and the transparent color filter comprises light scattering particles.

20 . The display device of claim 19 , further comprising a blue-light blocking layer disposed on the red color filter and the green color filter.

Assignees

• Samsung Display Co Ltd

Inventors

• Yoon Seontae
• Kwon Junghyun
• Nam Minki
• Park Haeil
• Lee Kwangkeun
• Lee Junhan

Classifications

• G02F1/1337

  Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers · CPC title

• G02F1/133514 Primary

  Colour filters · CPC title

• G02F1/133345

  Insulating layers (G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence) · CPC title

• G02F1/133512

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• G02F1/133377 Primary

  Cells with plural compartments or having plurality of liquid crystal microcells partitioned by walls, e.g. one microcell per pixel · CPC title