Transparent display device

Patent metadata

Field	Value
Publication number	US-12010879-B2
Application number	US-202117530099-A
Country	US
Kind code	B2
Filing date	Nov 18, 2021
Priority date	Nov 24, 2020
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

Abstract

A transparent display device may minimize or reduce 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 plurality of subpixels disposed between the transmissive areas, first and second anode electrodes provided in each of the plurality of subpixels, a first connection electrode connecting the first anode electrode with the second anode electrode, a driving transistor provided in each of the plurality of subpixels, and a second connection electrode provided below the driving transistor, electrically connecting the driving transistor with the first connection electrode.

First claim

The invention claimed is:

1. A transparent display device comprising:
a substrate including a plurality of transmissive areas and a plurality of subpixels disposed between the transmissive areas;
first and second anode electrodes provided in each of the plurality of subpixels;
a first connection electrode configured to connect the first anode electrode with the second anode electrode;
a driving transistor provided in each of the plurality of subpixels; and
a second connection electrode provided below the driving transistor,
wherein the second connection electrode is configured to electrically connect the driving transistor with the first connection electrode.

2. The transparent display device of claim 1 , further comprising a light-shielding layer provided between the substrate and the driving transistor, wherein the second connection electrode is made of a same material as that of the light-shielding layer in a same layer as the light-shielding layer.

3. The transparent display device of claim 2 , wherein the light-shielding layer is electrically connected with the driving transistor through a first contact hole, wherein the second connection electrode is electrically connected with the first connection electrode through a second contact hole.

4. The transparent display device of claim 3 , further comprising an intermediate connection electrode provided between the first connection electrode and the second connection electrode,
wherein the intermediate connection electrode is electrically connected with the second connection electrode through the second contact hole, and
wherein the intermediate connection electrode is connected with the first connection electrode through a third contact hole.

5. The transparent display device of claim 1 , wherein the second connection electrode includes a first transistor connection portion extended from a light-shielding layer disposed between the driving transistor and the substrate toward one of the transmissive areas, and a second transistor connection portion bent from the first transistor connection portion toward the first connection electrode, having at least a portion overlapped with the first connection electrode.

6. The transparent display device of claim 1 , further comprising:
a reference line extended from a non-transmissive area provided between the transmissive areas 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 first data line and the second data line are provided in a same layer as the second connection electrode.

7. The transparent display device of claim 6 , wherein the reference line is provided in a layer different from the first data line and the second data line.

8. The transparent display device of claim 6 , 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. A transparent display device comprising:
a substrate including a plurality of transmissive areas and a plurality of subpixels disposed between the transmissive areas;
first and second anode electrodes provided in each of the plurality of subpixels;
a first connection electrode connecting the first anode electrode with the second anode electrode;
a driving transistor provided in each of the plurality of subpixels; and
a second connection electrode disposed outside the first connection electrode, electrically connecting the driving transistor with the first connection electrode.

11. The transparent display device of claim 10 , wherein the first connection electrode includes a first anode connection portion extended from the first anode electrode toward one of the transmissive areas, a second anode connection portion extended from the second anode electrode toward the one of the transmissive areas, and a third anode connection portion connecting one end of the first anode connection portion with one end of the second anode connection portion.

12. The transparent display device of claim 11 , wherein the second anode connection portion is disposed at a first side of the first anode connection portion to adjoin the first anode connection portion.

13. The transparent display device of claim 12 , wherein the second connection electrode is disposed at a second side of the first anode connection portion to adjoin the first anode connection portion.

14. The transparent display device of claim 11 , wherein the second connection electrode includes a first transistor connection portion extended from a light-shielding layer provided between the substrate and the driving transistor toward the one of transmissive areas, and a second transistor connection portion bent from the first transistor connection portion toward the first connection electrode, having at least a portion overlapped with the third anode connection portion.

15. The transparent display device of claim 10 , wherein the second connection electrode has a width narrower than that of the first connection electrode.

Assignees

• Lg Display Co Ltd

Inventors

• Park Sunyoung
• Ko Taehee

Classifications

• H10K59/123 Primary

  Connection of the pixel electrodes to the thin film transistors [TFT] · CPC title

• H10K59/121 Primary

  characterised by the geometry or disposition of pixel elements · CPC title

• H10K59/8051

  Anodes · CPC title

• H10K71/861

  Repairing · CPC title

• H10K59/126

  Shielding, e.g. light-blocking means over the TFTs · CPC title