Display room mirror

• US 9,499,103 B2
• Filed: 09/25/2013
• Issued: 11/22/2016
• Est. Priority Date: 09/27/2012
• Status: Active Grant

• Current Assignee: LG Innotek Company Limited (LG Corporation)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Han, Tae Hoon
• Primary Examiner(s): Husar, Stephen F
• Assistant Examiner(s): Allen, Danielle
• Application Number:
  US14/035,985
• Publication Number:
  US 20140085913A1
• Time in Patent Office: 1,154 Days
• US Class Current: 1/1
• CPC Class Codes: B60R 1/04 mounted inside vehicle B60R1/025, B60R1/08 take precedence
• CPC Class Codes: B60R 1/088 using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
• CPC Class Codes: B60R 1/12 Mirror assemblies combined with other articles, e.g. clocks
• CPC Class Codes: B60R 2001/1253 with cameras, video cameras or video screens
• CPC Class Codes: G02F 1/157 Structural association of cells with optical devices, e.g. reflectors or illuminating devices

Abstract

Provided is a display room mirror, including a room mirror disposed in an inner part of a vehicle to detect a rear situation of the vehicle; and an organic light emitting diode (OLED) panel formed in a part or an entire part of a front surface of the room mirror, thereby improving a contrast and a reaction velocity and reducing a thickness and a weight of the room mirror.

Claims

1. A display room mirror, comprising

an electrochromic mirror disposed in an inner part of a vehicle to detect a rear situation of the vehicle;

and

an organic light emitting diode (OLED) panel formed in a part or an entire part of a front surface of the electrochromic mirror,

wherein the electrochromic mirror comprises;

two substrates facing each other;

an electrode and a conductive reflection layer interposed between the two substrates; and

an electrochromic layer interposed between the electrode and the conductive reflection layer and containing an electrochromic material and an electrolyte, and wherein the electrochromic layer comprises;

an electrolyte layer interposed between the electrode and the conductive reflection layer; and

an electrochromic coating layer formed on at least one surface of the electrolyte layer.

2. The display room mirror of claim 1, wherein the two substrates are a first substrate and a second substrate facing each other and made of a transparent material.

3. The display room mirror of claim 2, wherein any one of the first substrate and the second substrate is made of a transparent film material.

4. The display room mirror of claim 3, wherein the transparent film material is any one of polyethylene terephthalate (PET), polycarbonate (PC), an acrylonitrile-butadiene-styrene copolymer (ABS), polymethyl methacrylate (PMMA), polyethylene naphthalate (PEN), polyether sulfone (PES), a cyclic olefin copolymer (COC), a triacetylcellulose (TAC) film, a polyvinyl alcohol (PVA) film, a polyimide (PI) film, and polystyrene (PS).

5. The display room mirror of claim 1, wherein the OLED panel is formed on a rear surface of one surface of the first substrate in which the first electrode is formed.

6. The display room mirror of claim 1, wherein the OLED panel is a transparent OLED panel.

7. The display room mirror of claim 6, wherein the transparent OLED panel comprises:

a glass substrate;

a lower transparent electrode formed on the glass substrate;

an organic light emitting layer formed on the lower transparent electrode;

an upper transparent electrode formed on the organic light emitting layer; and

a sealing glass formed on the upper transparent electrode.

8. The display room mirror of claim 1, wherein the electrochromic coating layer is coated with an organic material or an inorganic material.

9. The display room mirror of claim 8, wherein the organic material contains any one selected from the group consisting of viologen, anthraquinone, polyaniline, polyphenol and polythiopene.

10. The display room mirror of claim 8, wherein the inorganic material contains any one selected from the group consisting of WO₃, MoO₃, CeO₃, MnO₂, and Nb₂O₅.

11. The display room mirror of claim 8, wherein the electrochromic material is formed by mixing a liquid electrochromic material and an electrolyte.

12. The display room mirror of claim 8, wherein the electrochromic material comprises a solid electrochromic coating layer and a liquid electrolyte layer.

13. The display room mirror of claim 1, further comprising a second electrochromic coating layer formed between the electrolyte layer and the conductive reflection layer.

14. The display room mirror of claim 13, wherein the second electrochromic coating layer is coated on a substrate in which the conductive reflection layer is formed.

15. The display room mirror of claim 1, wherein the electrode is a transparent electrode.

16. The display room mirror of claim 15, wherein the electrode is any one selected from the group consisting of indium doped tin oxide (ITO), aluminum doped zinc oxide (AZO), galium doped zinc oxide (GZO), antimony doped tin oxide (ATO), fluorine doped tin oxide (FTO), indium doped zinc oxide (IZO), niobium doped titanium oxide (NTO), ZnO, and any combination thereof.

17. The display room mirror of claim 15, wherein the conductive reflection layer is at least one metal selected from the group consisting of Cu, Au, Ag, Ni, Al, Cr, Ru, Re, Pb, Sn, In, and Zn, or an alloy containing these metals.