Transparent display device

Patent metadata

Field	Value
Publication number	US-12190802-B2
Application number	US-202318491619-A
Country	US
Kind code	B2
Filing date	Oct 20, 2023
Priority date	Dec 22, 2020
Publication date	Jan 7, 2025
Grant date	Jan 7, 2025

Abstract

A transparent display device that may prevent deterioration of light transmittance, which is caused by a repair line, from occurring. The transparent display device comprises a plurality of first signal lines extended in a first direction and spaced apart from each other, a plurality of second signal lines extended in a second direction and spaced apart from each other, a transmissive area provided between two adjacent first signal lines and between two adjacent second signal lines, a pixel including a plurality of subpixels disposed based on an overlapping area where the first signal line and the second signal line cross each other, a first electrode provided in each of the plurality of subpixels, including a first side and a second side, which are disposed to be adjacent to the transmissive area and have an inclination with respect to each of the first signal line and the second signal line, a circuit area connected with the first electrode through a contact hole disposed to be adjacent to the first side of the first electrode, and an anode line extended from the second side of the first electrode of each of the plurality of subpixels and at least partially overlapped with a circuit area of an adjacent subpixel of the same color.

First claim

The invention claimed is:

1. A transparent display device comprising:
a plurality of first signal lines extended in a first direction and spaced apart from each other;
a plurality of second signal lines extended in a second direction and spaced apart from each other, the second direction being transverse to the first direction;
a transmissive area provided between two adjacent first signal lines and between two adjacent second signal lines;
a pixel including a plurality of subpixels disposed adjacent to an overlapping area where the first signal line and the second signal line cross each other;
a first electrode provided in each of the plurality of subpixels, which are disposed to be adjacent to the transmissive area, the first electrode including a first side and a second side;
a circuit element coupled with the first electrode through a contact hole disposed to be adjacent to the first side of the first electrode, the circuit element including a capacitor including a first capacitor electrode and a second capacitor electrode; and
an anode line extended from the second side of the first electrode and extended along a side of one of the plurality of first signal lines or a side of one of the plurality of second signal lines,
wherein, in a plan view, the anode line extends along at least one side of the transmissive area toward an adjacent subpixel in the first direction or the second direction, and extends along an outer portion of the transmissive area, and
wherein, in a plan view, the anode line is disposed between the first electrode and the transmissive area.

2. The transparent display device of claim 1 , wherein at least a portion of the anode line overlaps the second capacitor electrode of the capacitor coupled with the first electrode of the adjacent subpixel of a same color.

3. The transparent display device of claim 2 , wherein the anode line is directly coupled with the second capacitor electrode of the capacitor coupled with the first electrode of the adjacent subpixel of the same color when a laser is irradiated to the welding point.

4. The transparent display device of claim 1 , wherein the circuit element further includes:
a driving transistor supplying a power source to the first electrode of each of the plurality of subpixels and including an active layer, a gate electrode, a source electrode, and a drain electrode, and
wherein the capacitor is coupled with the driving transistor of each of the plurality of subpixels, and
wherein the second capacitor electrode of the capacitor is extended from either the source electrode or the drain electrode of the driving transistor.

5. The transparent display device of claim 4 , wherein each of the driving transistor and the capacitor does not overlap each of the first signal line and the second signal line.

6. The transparent display device of claim 4 , wherein the driving transistor is disposed to be closer to the overlapping area than the capacitor.

7. The transparent display device of claim 4 , wherein the capacitor has one side provided in parallel with the first side or the second side of the first electrode.

8. The transparent display device of claim 4 , wherein the first electrode is coupled to the second capacitor electrode of the capacitor through a contact hole disposed to be adjacent to the first side.

9. The transparent display device of claim 1 , wherein the plurality of subpixels includes first subpixels overlapped with at least a portion of the first signal line and second subpixels overlapped with at least a portion of the second signal line, and
wherein the anode line includes a first anode line extended from a first electrode of each of the plurality of first subpixels and extended along the side of one of the plurality of first signal lines, and a second anode line extended from a first electrode of each of the plurality of second subpixels and extended along the side of one of the plurality of second signal lines.

10. The transparent display device of claim 9 , wherein the first anode line at least partially overlapped with a circuit element coupled with the first electrode of a first subpixel adjacent thereto, and the second anode line at least partially overlapped with a circuit element coupled with the first electrode of a second subpixel adjacent thereto.

11. The transparent display device of claim 9 , wherein the first anode line is disposed between first subpixels provided in each of two pixels adjacent to each other in the first direction, and
wherein the second anode line is disposed between second subpixels provided in each of two pixels adjacent to each other in the second direction.

Assignees

• Lg Display Co Ltd

Inventors

• Park Jaehee

Classifications

• H10K59/80515

  characterised by their shape · CPC title

• G09G3/3225 Primary

  using an active matrix · CPC title

• H10K59/351 Primary

  comprising more than three subpixels, e.g. red-green-blue-white [RGBW] · CPC title

• H10K59/353

  characterised by the geometrical arrangement of the RGB subpixels · CPC title

• H10K59/131 Primary

  Interconnections, e.g. wiring lines or terminals · CPC title