Transparent display device

Patent metadata

Field	Value
Publication number	US-12238989-B2
Application number	US-202117530305-A
Country	US
Kind code	B2
Filing date	Nov 18, 2021
Priority date	Nov 23, 2020
Publication date	Feb 25, 2025
Grant date	Feb 25, 2025

Abstract

A transparent display device may minimize coupling occurring between signal lines and apply a repair structure to a scan line. The transparent display device comprises a substrate provided with a transmissive area and a non-transmissive area disposed between the transmissive areas, a reference line extended from the non-transmissive area in a first direction, a first data line disposed at a first side of the reference line, a second data line disposed at a second side of the reference line, a first power line provided between the reference line and the first data line, and a second power line provided between the reference line and the second data line.

First claim

The invention claimed is:

1. A transparent display device comprising:
a substrate including transmissive areas and a non-transmissive area between the transmissive areas, the non-transmissive area including an emission area;
a plurality of light emitting diodes disposed in the emission area of the non-transmissive area;
a reference line extended from the non-transmissive area in a first direction;
a first data line disposed at a first side of the reference line;
a second data line disposed at a second side of the reference line;
a first power line provided between the reference line and the first data line; and
a second power line provided between the reference line and the second data line,
wherein the emission area of the non-transmissive area overlaps with at least one of the first power line or the second power line from a plan view.

2. The transparent display device of claim 1 , wherein the reference line is provided on a layer different from the first data line and the second data line.

3. The transparent display device of claim 2 , further comprising a driving transistor disposed over the substrate in the non-transmissive area, the driving transistor including an active layer, a gate electrode, a source electrode, and a drain electrode,
wherein the reference line is provided on a same layer as any one of the active layer, the gate electrode, the source electrode, or the drain electrode, and
wherein the first data line and the second data line are provided between the substrate and the driving transistor.

4. The transparent display device of claim 1 , wherein each of the plurality of light emitting diodes includes an anode electrode, a light emitting layer, and a cathode electrode, wherein one of the first power line and the second power line is a pixel power line supplying a first power source to the anode electrode of each of the plurality of light emitting diodes.

5. The transparent display device of claim 4 , wherein the other one of the first power line or the second power line is a common power line supplying a second power source to the cathode electrode of each of the light emitting diodes.

6. The transparent display device of claim 1 , further comprising:
a first driving transistor disposed at the second side of the reference line and provided between the second data line and the transmissive area; and
a second driving transistor disposed at the first side of the reference line and provided between the first data line and the transmissive area.

7. The transparent display device of claim 6 , wherein the first driving transistor and the second driving transistor are provided in the non-transmissive area and alternately disposed along the first direction.

8. The transparent display device of claim 1 , wherein the non-transmissive area includes a first non-transmissive area extended in the first direction between the transmissive areas and a second non-transmissive area extended in a second direction between the transmissive areas, and the reference line includes a bent portion bent in an area where the first non-transmissive area and the second non-transmissive area overlap each other.

9. The transparent display device of claim 8 , wherein the bent portion is provided to be parallel with the second non-transmissive area.

10. The transparent display device of claim 8 , further comprising a scan line extended from the second non-transmissive area in the second direction, wherein the scan line is provided on a layer different from the reference line.

11. The transparent display device of claim 10 , wherein the scan line includes a first line portion disposed at the first side of the reference line, a second line portion disposed at the second side of the reference line, and a connection line portion connecting the first line portion with the second line portion, and the connection line portion includes a plurality of divergence lines.

12. The transparent display device of claim 11 , wherein the plurality of divergence lines overlap at least a portion of the bent portion of the reference line in the area where the first non-transmissive area and the second non-transmissive area overlap each other.

13. A transparent display device comprising:
a substrate including transmissive areas, a first non-transmissive area extended in a first direction between the transmissive areas, and a second non-transmissive area extended in a second direction between the transmissive areas, the first non-transmissive area including a first emission area and the second non-transmissive area including a second emission area;
a plurality of light emitting diodes disposed in the first emission area and the second emission area;
a reference line extending in the first direction in the first non-transmissive area; and
a scan line extending in the second direction in the second non-transmissive area,
wherein the reference line includes a first line portion disposed at a first side of a first center line parallel with the first direction in the first non-transmissive area, a second line portion disposed at a second side of the first center line, and a bent portion connecting the first line portion with the second line portion,
wherein at least one of the first emission area or the second emission area overlaps with the reference line from a plan view.

14. The transparent display device of claim 13 , wherein the bent portion is provided in an area where the first non-transmissive area and the second non-transmissive area overlap each other.

15. The transparent display device of claim 13 , wherein the bent portion is inclined with respect to a second center line parallel with the second direction in the second non-transmissive area.

16. The transparent display device of claim 13 , wherein the bent portion is parallel with a second center line parallel with the second direction in the second non-transmissive area.

17. The transparent display device of claim 13 , wherein the reference line is provided on a layer different from the scan line.

18. The transparent display device of claim 17 , further comprising a driving transistor disposed over the substrate in the first non-transmissive area and the second non-transmissive area, the driving transistor including an active layer, a gate electrode, a source electrode, and a drain electrode,
wherein the reference line is provided on a same layer as the gate electrode, and
wherein the scan line is provided on a same layer as the source electrode and the drain electrode.

19. The transparent display device of claim 13 , wherein the scan line includes a first line portion disposed at a first side of the reference line, a second line portion disposed at a second side of the reference line, and a connection line portion connecting the first line portion with the second line portion, the connection line including a plurality of divergence lines, and
wherein the plurality of divergence lines overlap at least a portion of the bent portion of the reference line in an area where the first non-transmissive area and the second non-transmissive area overlap each other.

20. The transparent display device of claim 13 , wherein an intersection area is defined where the first non-transmissive area and the second non-transmissive area overlap with each other, and
wherein the bent portion of the reference line overlaps with the intersection area from a plan view.

Assignees

• Lg Display Co Ltd

Inventors

• Park Sunyoung
• Ko Taehee

Classifications

• H10K71/861

  Repairing · CPC title

• H10D86/441

  Interconnections, e.g. scanning lines · CPC title

• H10D86/60

  wherein the TFTs are in active matrices · CPC title

• H10K59/1213

  the pixel elements being TFTs · CPC title

• G09G3/3275

  Details of drivers for data electrodes · CPC title