Transparent display device having a minimized bezel

Patent metadata

Field	Value
Publication number	US-9543371-B2
Application number	US-201414554896-A
Country	US
Kind code	B2
Filing date	Nov 26, 2014
Priority date	Dec 20, 2013
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

A transparent organic light-emitting display device is described herein. The transparent substrate includes a display area and non-display area adjacent to the display area. An organic light-emitting element is disposed on the display area of the transparent substrate. A first power line is disposed on the display area of the transparent substrate. The first power line supplies power to the organic light-emitting element. A first circuit board comprises a first power supply provided on a first side of the transparent substrate and a second circuit board comprises a second power supply provided on a second side of the transparent substrate. The first power supply is configured to receive power from the second power supply via the first power line. An additional interconnection film to supply power to the first power supply is not required, and thus the width of the bezel can be reduced.

First claim

What is claimed is:

1. A transparent display device, comprising:
a transparent substrate having a display area and a non-display area adjacent to the display area;
an organic light-emitting element on the display area of the transparent substrate;
a first power line on the display area of the transparent substrate, the first power line supplying power to the organic light-emitting element;
a first circuit board having a first power supply provided on a first side of the transparent substrate; and
a second circuit board having a second power supply provided on a second side of the transparent substrate,
wherein the first power supply is configured to receive power from the second power supply via the first power line.

2. The device of claim 1 , further comprising:
one or more elements disposed on the first circuit board;
one or more elements disposed on the second circuit board; and
a plurality of connecting lines on the non-display area of the transparent substrate electrically connecting at least one of the elements on the first circuit board and at least one of the elements on the second circuit board.

3. The device of claim 2 , wherein said at least one of the elements on the first circuit board connected to said at least one of the elements on the second circuit board via the plurality of the connecting lines is configured to receive power from the first power supply.

4. The device of claim 3 , wherein said at least one of the elements that receives power from the first power supply is a processor configured to perform at least one of sending a signal or receiving the signal from said at least one of the elements on the second circuit board via the plurality of connecting lines.

5. The device of claim 2 , further comprising:
a second power line formed on the non-display area of the transparent substrate,
wherein the plurality of connecting lines is disposed between the second power line and the display area.

6. The device of claim 2 , wherein the plurality of connecting lines includes a plurality of signal lines.

7. The device of claim 6 , the plurality of the signal lines are disposed on a same layer and spaced apart from one another.

8. The device of claim 6 , wherein at least one of the signal lines is disposed on a different layer from another signal line without being overlapped by one another.

9. The device of claim 6 , wherein a width of each of the signal lines is equal to or less than 100 μm.

10. The device of claim 6 , wherein the plurality of the connecting lines further include at least one detection signal line, wherein the detection signal line is disposed on a different layer from a layer where said one or more signal lines are disposed on.

11. The device of claim 10 , wherein the detection signal line and said one or more signal lines are arranged such that at least some part of the detection signal line overlaps with some of the signal lines.

12. The device of claim 11 , wherein a width of the detection signal line is equal to or less than 1000 μm.

13. The device of claim 2 , further comprising:
a thin-film transistor formed on the display area of the transparent substrate, the thin-film transistor having an active layer, a gate electrode, a source electrode, and a drain electrode,
wherein at least one of the connecting lines is made of the same material as the gate electrode, and wherein at least one of the connecting lines is made of the same material as the source electrode or the drain electrode.

14. A transparent display device, comprising:
a transparent substrate having a display area and a non-display area adjacent to the display area;
a first substrate and a second substrate, each connected to a different side of the transparent substrate; and
a plurality of connecting lines on the non-display of the transparent substrate, the plurality of connecting lines electrically connecting a first element on the first substrate and a second element on the second substrate.

15. The device of claim 14 , wherein the plurality of the connecting lines are disposed on a same layer and spaced apart from one another.

16. The device of claim 14 , wherein the plurality of the connecting lines are disposed on two or more different layers without being overlapped with one another.

17. The device of claim 14 , wherein the plurality of the connecting lines are disposed on two or more different layers, and wherein at least one of the connecting lines on one layer at least partially overlaps with another connecting line on another layer.

18. The device of claim 14 , further comprising:
a first power supply disposed on the first substrate; and
an auxiliary power line formed on the non-display area of the transparent substrate providing power to the first power supply.

19. The device of claim 18 , further comprising:
a second power supply disposed on the second substrate,
wherein the second power supply is configured to supply power to the first power supply via the auxiliary power line.

20. The device of claim 18 , wherein a part of the auxiliary power line overlaps with at least some of the plurality of connecting lines.

Assignees

• Lg Display Co Ltd

Inventors

• Kim Hyoung-Su
• Lee Buyeol

Classifications

• G09G2330/028

  Generation of voltages supplied to electrode drivers in a matrix display other than LCD · CPC title

• H01L27/3276 Primary

  Electricity · mapped topic

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G3/3225 Primary

  using an active matrix · CPC title

• G09F9/33 Primary

  being semiconductor devices, e.g. diodes · CPC title