Display room mirror

Patent metadata

Field	Value
Publication number	US-9482889-B2
Application number	US-201313847824-A
Country	US
Kind code	B2
Filing date	Mar 20, 2013
Priority date	Mar 23, 2012
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

Provided is a display room mirror which is configured such that a display module, which includes: one or more light emitting units formed on a printed circuit board; a resin layer is formed on the light emitting units so that the light emitting units are embedded in the resin layer; a liquid crystal panel formed on the resin layer, is disposed on a rear surface the room mirror, thereby reducing an entire thickness and improving a degree of freedom in design.

First claim

What is claimed is:

1. A display room mirror comprising a display module, wherein the display module comprises:
a printed circuit board;
a reflection sheet formed on an upper surface of the printed circuit board;
one or more light emitting units formed on the reflection sheet;
a plurality of reflection patterns formed on the reflection sheet;
a resin layer formed on the reflection sheet;
a diffusion sheet formed on the resin layer;
an optical pattern formed on a lower surface of the diffusion sheet;
a liquid crystal display panel formed on the diffusion sheet; and
a room mirror disposed on the liquid crystal display panel and configured to transmit and reflect light;
wherein a pattern density of the plurality of reflection patterns increases as a distance from the light emitting units increases,
wherein the optical pattern functions to partially shield and diffuse light emitted from the light emitting units,
wherein the light emitting units, the plurality of reflection patterns, and the optical pattern are embedded in the resin layer;
wherein the optical pattern comprises a diffusion pattern and a light shielding pattern;
wherein the diffusion pattern, the light shielding pattern, and the light emitting units are buried in the resin layer;
wherein the diffusion pattern comprises:
a first diffusion part covered by the light shielding pattern; and
a second diffusion part covered by the resin layer;

wherein the light shielding comprises:
a first shielding part disposed on a lower surface of the first diffusion part; and
a second shielding part disposed on the lower surface of the diffusion sheet; and

wherein a side surface of a reflection pattern of the plurality of reflection patterns is directly contacted with a light emitting unit of the one or more light emitting units.

2. The display room mirror of claim 1 , further comprising an ECM module formed on a rear surface of the room mirror.

3. The display room mirror of claim 2 , wherein the ECM module comprises: a first transparent substrate and a second transparent substrate which are opposed to each other at a predetermined distance; a transparent electrode and a conductive reflection layer which are formed on an opposed surface of the first and second transparent substrates, respectively; and
an electrochromic layer interposed between the transparent electrode and the conductive reflection layer.

4. The display room mirror of claim 3 , wherein the electrochromic layer comprises: an electrolytic layer interposed between the transparent electrode and the conductive reflection layer; and an electrochromic coating layer formed on one surface or both surfaces of the electrolytic layer.

5. The display room mirror of claim 1 , wherein the room mirror is formed of a half mirror.

6. The display room mirror of claim 1 , wherein the printed circuit board is composed of a flexible printed circuit board.

7. The display room mirror of claim 1 , wherein the light emitting units are composed of side view type light emitting diodes.

8. The display room mirror of claim 1 , wherein the reflection patterns are formed with a reflective ink including any one of TiO 2 , Al 2 O 3 , CaCO 3 , BsSO 4 , Silicon and PS.

9. The display room mirror of claim 1 , wherein the resin layer is formed to include beads which increases a reflection amount of light.

10. The display room mirror of claim 9 , wherein the beads are composed of any one selected from silicon, silica, glass bubble, PMMA, urethane, Zn, Zr, Al 2 O 3 , and acryl.

11. The display room mirror of claim 1 , wherein the optical pattern is formed on the lower surface of the diffusion sheet, and wherein the display room mirror is configured such that light emitted from the light emitting units strikes the lower surface of the diffusion sheet.

12. The display room mirror of claim 1 , wherein the diffusion pattern formed using a light shielding ink including one or more materials selected from TiO 2 , CaCO 3 , BaSO 4 , Al 2 O 3 and Silicon overlaps with the light shielding pattern formed using a light shielding ink including Al or a mixture of Al and TiO 2 .

13. The display room mirror of claim 12 , wherein the diffusion pattern is formed in a structure in which the diffusion pattern is printed on at least one surface of an upper surface and a lower surface of the light shielding pattern.

14. The display room mirror of claim 1 , wherein as the optical pattern is moved far from the light emitting units, a pattern density thereof is reduced.

15. The display room mirror of claim 1 , wherein the display module is configured such that the liquid crystal display panel is disposed to be opposed to the room mirror.

16. The display room mirror of claim 1 , wherein the resin layer is composed of an ultraviolet curing resin including an oligomer.

17. The display room mirror of claim 16 , wherein the oligomer is composed of any one material selected from urethane acrylate, epoxy acrylate, polyester acrylate and acrylic acrylate.

Assignees

• Lg Innotek Co Ltd

Inventors

• Choe Hae Min
• Roh Geon Ho
• Jun Sung Gon

Classifications

• G02F1/1313 Primary

  specially adapted for a particular application · CPC title

• G02F1/133605

  including specially adapted reflectors · CPC title

• B60R1/12

  Mirror assemblies combined with other articles, e.g. clocks · CPC title

• G02F1/133603

  with LEDs · CPC title

• B60R2001/1253

  with cameras, video cameras or video screens · CPC title