Transparent display apparatus

Patent metadata

Field	Value
Publication number	US-9964829-B2
Application number	US-201715406580-A
Country	US
Kind code	B2
Filing date	Jan 13, 2017
Priority date	Jan 29, 2016
Publication date	May 8, 2018
Grant date	May 8, 2018

Abstract

Provided is a transparent display apparatus including a lower panel on which a shutter region and a light emitting region are horizontally disposed, an upper panel including a recessed region configured to cover the shutter region and the light emitting region to face the lower panel, a light emitting device, and a shutter device. The shutter device includes a lower electrode and an electrochromic material layer that are sequentially laminated in the shutter region of the lower panel, an upper electrode disposed in the recessed region of the upper panel, and an electrolyte layer filled between the electrochromic material layer and the upper electrode.

First claim

What is claimed is:

1. A transparent display apparatus comprising:
a lower panel on which a shutter region and a light emitting region are horizontally disposed;
an upper panel comprising a recessed region configured to cover the shutter region and the light emitting region to face the lower panel;
a light emitting device disposed in the light emitting region; and
a shutter device disposed in the shutter region,
wherein the shutter device comprises a lower electrode and an electrochromic material layer that are sequentially laminated in the shutter region of the lower panel, an upper electrode disposed in the recessed region of the upper panel, and an electrolyte layer filled between the electrochromic material layer and the upper electrode.

2. The transparent display apparatus of claim 1 , wherein the lower panel comprises:
a lower substrate;
a plurality of circuits disposed on the lower substrate;
a flattening layer configured to cover the circuits; and
a bank insulating layer disposed on the flattening layer, the bank insulating layer comprising a first opening defining the shutter region and a second opening defining the light emitting region.

3. The transparent display apparatus of claim 2 , wherein the lower electrode of the shutter device is disposed between the flattening layer and the bank insulating layer in the shutter region and has an upper surface that is exposed by the first opening, and
the electrochromic material layer of the shutter device fills at least a portion of the first opening.

4. The transparent display apparatus of claim 2 , wherein the light emitting device comprises:
a lower electrode disposed between the flattening layer and the bank insulating layer in the light emitting region and has an upper surface that is exposed by the second opening; and
a light emitting layer and an upper electrode that are sequentially laminated in the second opening on the lower electrode.

5. The transparent display apparatus of claim 4 , wherein the light emitting device further comprises a protection film disposed between an upper electrode of the light emitting device and the electrolyte layer.

6. The transparent display apparatus of claim 2 , wherein the bank insulating layer has a thickness that is about 4 times to about 6 times greater than that of the electrochromic material layer, and
wherein a side surface of the first opening has an angle more than 30 degree angle with respect to an upper surface of the lower electrode.

7. The transparent display apparatus of claim 1 , wherein the upper electrode of the shutter device covers the shutter region and the light emitting region within the recesses region.

8. The transparent display apparatus of claim 1 , further comprising an additional film disposed between the upper electrode of the shutter device and the electrolyte layer.

9. The transparent display apparatus of claim 8 , wherein the additional film covers the shutter region and the light emitting region.

10. The transparent display apparatus of claim 8 , wherein the additional film covers the shutter region.

11. The transparent display apparatus of claim 8 , wherein the additional film comprises an oxidant, a reductant, or an electrochromic material.

12. The transparent display apparatus of claim 1 , wherein the upper panel further comprises an injection hole passing therethrough to expose the electrolyte layer.

Assignees

• Electronics & Telecommunications Res Inst

Inventors

• Kim Tae-Youb
• Ah Chil Seong
• Cho Seong-Mok
• Ryu Hojun

Classifications

• G02F1/155

  Electrodes · CPC title

• H01L27/3232

  Electricity · mapped topic

• H01L27/3246

  Electricity · mapped topic

• G02F1/157 Primary

  Structural association of cells with optical devices, e.g. reflectors or illuminating devices · CPC title

• G02F2201/44

  Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers · CPC title