Display device

Patent metadata

Field	Value
Publication number	US-9482900-B2
Application number	US-201314141805-A
Country	US
Kind code	B2
Filing date	Dec 27, 2013
Priority date	May 27, 2013
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

Disclosed is a display device with slimness and narrowness, wherein the display device may include a liquid crystal panel; a light source for providing light to the liquid crystal panel; a light guide formed of a glass material, wherein the light source is combined with one side of the light guide; a reflector formed on at least one of one and the other surfaces of the light guide, wherein the reflector includes an organic material and a metal compound; and an adhesive member formed on the one surface of the light guide confronting the liquid crystal panel, and configured to attach the liquid crystal panel and the light guide to each other.

First claim

What is claimed is:

1. A display device comprising:
a liquid crystal panel;
a light source for providing light to the liquid crystal panel;
a light guide comprising a glass material, wherein the light source is disposed on one side of the light guide;
a reflector including:
a reflection pattern of discrete metal compound elements dispersed on and protruding from a first surface of the light guide facing away from the liquid crystal panel, and
an organic layer comprising an organic material, the organic layer covering the reflection pattern of the metal compound elements on the first surface of the light guide, the organic layer in contact with the glass material of the light guide and separating the metal compound elements protruding from the first surface of the light guide; and

an adhesive member disposed on a second surface of the light guide, the second surface of the light guide facing the liquid crystal panel, and the adhesive member configured to attach the liquid crystal panel and the light guide to each other.

2. The display device of claim 1 , wherein the reflection pattern of the metal compound elements comprises any one of MoTi and AlNd, and the reflection pattern regularly reflects the light to the liquid crystal panel, or scatters and reflects the light to the liquid crystal panel.

3. The display device of claim 1 , wherein the reflector further includes any one of an optical pattern disposed on the second surface of the light guide, and an organic layer pattern comprising the organic material and disposed on the second surface of the light guide.

4. The display device of claim 3 , wherein a width of the organic layer pattern is within a range of 2 μm˜100 μm and a height of the organic layer pattern is within a range of 2 μm˜100 μm.

5. A display device comprising:
a liquid crystal panel;
a light source for providing light to the liquid crystal panel;
a plurality of light guides including a first light guide member and a second light guide member comprising a glass material, wherein the light source is disposed on one side of any one of the plurality of light guides;
a reflector including:
a reflection pattern of discrete metal compound elements dispersed on and protruding from a first surface of the second light guide member of the plurality of light guides facing away from the liquid crystal panel, and
an organic layer comprising an organic material, the organic layer covering the reflection pattern of the metal compound elements on the first surface of the second light guide member, the organic layer in contact with the glass material of the second light guide member and separating the metal compound elements protruding from the first surface of the second light guide member; and

an adhesive member disposed on a first surface of the first light guide member, the first surface of the first light guide member facing the liquid crystal panel, and the adhesive member configured to attach the plurality of light guides to the liquid crystal panel.

6. The display device of claim 5 ,
wherein a second surface of the second light guide member facing the liquid crystal panel is coupled to a second surface of the first light guide member facing away from the liquid crystal panel.

7. The display device of claim 6 ,
wherein the reflection pattern of the metal compound elements comprise any one of MoTi and AlNd, and wherein the reflection pattern regularly reflects the light to the liquid crystal panel, or scatters and reflects the light to the liquid crystal panel.

8. The display device of claim 5 , wherein the reflector further includes any one of (i) an optical pattern disposed on the first surface of the first light guide member, and (ii) an organic layer pattern comprising the organic material disposed on the first surface of the first light guide member.

9. The display device of claim 5 , wherein the reflector further includes any one of (i) an optical pattern disposed on a second surface of the second light guide member, the second surface of the second light guide member facing the first light guide member, and (ii) an organic layer pattern comprising the organic material and disposed on the second surface of the second light guide member.

10. The display device of claim 9 , wherein a width of the organic layer pattern is within a range of 2 μm˜100 μm and a height of the organic layer pattern is within a range of 2 μm˜100 μm.

11. The display device of claim 9 , wherein the reflector further includes any one of (i) an optical pattern disposed on the first surface of the first light guide member, and (ii) an organic layer pattern comprising the organic material and disposed on the first surface of the first light guide member.

12. The display device of claim 11 , wherein a width of the organic layer pattern on the first surface of the first light guide member is within a range of 2 μm˜100 μm and a height of the organic layer pattern disposed on the first surface of the first light guide member is within a range of 2 μm˜100 μm.

Assignees

• Lg Display Co Ltd

Inventors

• Yun Kyung Sun
• Park Seoung Jin
• Song Moo Hyoung
• Jang Chang Soo

Classifications

• G02B6/0076

  Stacked arrangements of multiple light guides of the same or different cross-sectional area · CPC title

• G02B6/0055

  Reflecting element, sheet or layer · CPC title

• G02B6/0053

  Prismatic sheet or layer; Brightness enhancement element, sheet or layer · CPC title

• G02B6/0016

  Grooves, prisms, gratings, scattering particles or rough surfaces · CPC title

• G02F1/133615 Primary

  Edge-illuminating devices, i.e. illuminating from the side · CPC title