Transparent display device and tiled display device including the same

Patent metadata

Field	Value
Publication number	US-12310157-B2
Application number	US-202117483727-A
Country	US
Kind code	B2
Filing date	Sep 23, 2021
Priority date	Dec 21, 2020
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

A transparent display device includes a substrate, a main light emitting diode, a main transmission region, a sub-light emitting diode, a sub-transmission region, and a driving circuit. The substrate includes a main display area and a peripheral area adjacent to the main display area. The main light emitting diode is disposed in the main display area. The main transmission region is disposed in the main display area and adjacent to the main light emitting diode. The sub-light emitting diode is disposed in the peripheral area. The sub-transmission region is disposed in the peripheral area and adjacent to the sub-light emitting diode. The driving circuit is disposed in the peripheral area and overlaps, in a plan view, the sub-light emitting diode.

First claim

What is claimed is:

1. A transparent display device comprising:
a substrate comprising a main display area and a peripheral area adjacent to the main display area;
a main light emitting diode disposed on the substrate and in the main display area;
a main transmission region disposed in the main display area and adjacent to the main light emitting diode;
a sub-light emitting diode disposed on the substrate and in the peripheral area;
a sub-transmission region disposed in the peripheral area and adjacent to the sub-light emitting diode;
a driving circuit disposed in the peripheral area and overlapping, in a plan view, the sub-light emitting diode,
a main pixel circuit connected to the main light emitting diode, the main pixel circuit being disposed in the main display area; and
a sub-pixel circuit connected to the sub-light emitting diode the sub-pixel circuit being disposed in the peripheral area, wherein
the driving circuit generates and transmits a scan signal to each of the main pixel circuit and the sub-pixel circuit, and wherein
the main light emitting diode and the sub-light emitting diode are included in a same display panel.

2. The transparent display device of claim 1 , further comprising: an extension line connecting the sub-pixel circuit and the sub-light emitting diode, wherein, in the plan view, the extension line does not overlap the sub-transmission region.

3. The transparent display device of claim 2 , wherein:
the sub-light emitting diode comprises an anode, an emission layer, and a cathode sequentially stacked; and
the extension line extends from the anode.

4. The transparent display device of claim 1 , wherein, in the plan view, the driving circuit does not overlap the sub-pixel circuit.

5. The transparent display device of claim 1 , wherein, in the plan view, the sub-transmission region does not overlap the sub-light emitting diode, the driving circuit, and the sub-pixel circuit.

6. The transparent display device of claim 1 , wherein:
a plurality of sub-pixel groups are disposed in the peripheral area; and
each of the plurality of sub-pixel groups comprises a sub-transmission region and a sub-light emitting diode.

7. The transparent display device of claim 6 , wherein each of the sub-pixel groups comprises a plurality of sub-light emitting diodes.

8. The transparent display device of claim 7 , wherein a size of the sub-transmission region is larger than a size of the plurality of sub-light emitting diodes.

9. The transparent display device of claim 1 , wherein the transparent display device is comprised of only one display panel.

10. The transparent display device of claim 1 , wherein the main light emitting diode and the sub-light emitting diode are disposed on a same plane in a cross-sectional view.

11. The transparent display device of claim 1 , wherein the driving circuit is comprised of:
a scan driver that generates and transmits scan signals to each of the main pixel circuit and the sub-pixel circuit; and
a data driver that generates and transmits data signals to each of the main pixel circuit and the sub-pixel circuit.

Assignees

• Samsung Display Co Ltd

Inventors

• Ko Yoo Min
• Kim Gun Hee
• Kim Hye Won
• Lee Sun Hee
• Jeon Joo Hee

Classifications

• H10W90/00

  Package configurations · CPC title

• H10H29/142 Primary

  Two-dimensional arrangements, e.g. asymmetric LED layout · CPC title

• G09F9/3026

  Video wall, i.e. stackable semiconductor matrix display modules (video wall control systems G06F3/1446, G09G2300/026) · CPC title

• G09F9/33

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

• G09G3/32

  semiconductive, e.g. using light-emitting diodes [LED] · CPC title