Display device

Patent metadata

Field	Value
Publication number	US-9952462-B2
Application number	US-201615069835-A
Country	US
Kind code	B2
Filing date	Mar 14, 2016
Priority date	Apr 20, 2015
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

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;
a common electrode disposed between the support layer and the planarization layer; and
a blue-light transmission layer disposed between the support layer and the common electrode.

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

3. The display device of claim 1 , wherein the blue-light transmission layer is disposed between the support layer and the planarization layer.

4. 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;
a common electrode disposed between the support layer and the planarization layer; and;
a blue-light transmission layer disposed between the common electrode and the planarization layer,
wherein the planarization layer is disposed between the liquid crystal layer and the second polarizing plate.

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 transmission layer disposed between the planarization layer and the second polarizing plate,
wherein the planarization layer is disposed between the liquid crystal 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 transmission layer is disposed between the planarization layer and the patterned insulating layer.

16. The display device of claim 14 , wherein the blue-light transmission 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

• G02F1/133617

  Illumination with ultraviolet light; Luminescent elements or materials associated to the cell · CPC title

• G02F2001/133521

  Physics · mapped topic

• 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

• G02F1/133521

  Interference filters · CPC title