Transparent organic light emitting display device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-9859352-B2
Application number	US-201514753816-A
Country	US
Kind code	B2
Filing date	Jun 29, 2015
Priority date	Dec 5, 2014
Publication date	Jan 2, 2018
Grant date	Jan 2, 2018

Abstract

Disclosed is a transparent organic light-emitting display (OLED) device having improved resolution by changing the layout of sub-pixel regions in a light-emitting area. The device comprises: a substrate having a plurality of pixels, each pixel including: a light emitting area including a first sub-pixel region, a second sub-pixel region, and a third sub-pixel region; and a transmissive area through which external light passes, wherein the transmissive area is surrounded by edges of the first, second and third sub-pixel regions of the pixel; and an organic light-emitting element on thin film transistors in each of the sub-pixel regions, wherein the first sub-pixel region is arranged on a first line of the pixel extending in a first direction, the second sub-pixel region is arranged on a second line parallel to the first direction, and the third sub-pixel region is arranged on a third line extending in a second direction.

First claim

What is claimed:

1. A transparent organic light-emitting display (OLED) device, comprising:
a substrate having a plurality of pixels, each pixel including:
a light emitting area including a first sub-pixel region, a second sub-pixel region, and a third sub-pixel region, each of the sub-pixel regions configured to emit light of a different color from each other; and
a transmissive area through which external light passes, wherein the light emitting area surrounds the transmissive area with the first sub-pixel region extended along a first edge of the transmissive area, the second sub-pixel region extended along a second edge of the transmissive area, and the third sub-pixel region extended along a third edge of the transmissive area, and
wherein the second sub-pixel region of a first pixel and the first sub-pixel region of a second pixel immediately adjacent the first pixel in a row direction form a single integrated sub-pixel region.

2. The transparent OLED device of claim 1 , wherein the first sub-pixel region and the second sub-pixel region are parallel to each other.

3. The transparent OLED device of claim 2 , further comprising a bank layer at a periphery of each of the sub-pixel regions, wherein the bank layer covers a side end of an anode corresponding to each sub-pixel regions connected to one of a plurality of thin film transistors on the substrate.

4. The transparent OLED device of claim 1 , wherein each of the sub-pixel regions emit one of red light, blue light, and green light.

5. The transparent OLED device of claim 1 , wherein the second sub-pixel region of the second pixel and the first sub-pixel region of a third pixel immediately adjacent the second pixel in the row direction on the opposite side to the first pixel form a single integrated sub-pixel region.

6. The transparent OLED device of claim 5 , wherein the transmissive area is between the integrated sub-pixel regions in the row direction.

7. The transparent OLED device of claim 2 , wherein the second sub-pixel region of a first pixel and the first sub-pixel region of a second pixel immediately adjacent the first pixel in the row direction emit the same color.

8. The transparent OLED device of claim 2 , wherein an anode of the second sub-pixel region of the first pixel and an anode of the first sub-pixel region of a second pixel immediately adjacent the first pixel in the row direction are connected to a single driving transistor.

9. The transparent OLED device of claim 4 , further including a fourth sub-pixel region arranged in the row direction, wherein the fourth sub-pixel region emits a light of a different color from the first and second sub-pixel regions, and the fourth sub-pixel region and the third sub-pixel region are on opposite sides of the transmissive area.

10. The transparent OLED device of claim 1 , wherein the third sub-pixel region of a first pixel and the third sub-pixel region of a fourth pixel immediately adjacent the first pixel in the column direction form a single integrated sub-pixel region.

11. The transparent OLED device of claim 4 , wherein two interfacing sub-pixel regions which are located on each edge of two pixels immediately adjacent to each other emit the same color.

12. The transparent OLED device of claim 4 , wherein the two interfacing sub-pixel regions which are located on each edge of two pixels immediately adjacent to each other emit light simultaneously.

13. The transparent OLED device of claim 12 , wherein two anodes of each of said two interfacing sub-pixel regions are connected to a single driving transistor.

14. The transparent OLED device of claim 1 , wherein transmissive areas of two pixels immediately adjacent each other are integrated with no sub-pixel region at a boundary between the two pixels.

15. The transparent OLED device of claim 14 , wherein said transmissive areas of two pixels immediately adjacent each other form a single integrated transmissive area, with all edges of the integrated transmissive area surrounded by the sub-pixel regions.

16. A transparent organic light-emitting display (OLED) device, comprising:
a substrate having a plurality of pixels, each pixel including:
a light emitting area including a first sub-pixel region, a second sub-pixel region, and a third sub-pixel region, each of the sub-pixel regions configured to emit light of a different color from each other; and
a transmissive area through which external light passes, wherein the light emitting area surrounds the transmissive area with the first sub-pixel region extended along a first edge of the transmissive area, the second sub-pixel region extended along a second edge of the transmissive area, and the third sub-pixel region extended along a third edge of the transmissive area, and
wherein pixels immediately adjacent to each other along one of the column and row direction share a single integrated sub-pixel region at the boundary line between the pixels, the single integrated sub-pixel region including one among the first, second and third sub-pixel regions.

17. The transparent OLED device of claim 16 , wherein the direction of the major axis of the integrated sub-pixel region cross the said one of the column and row direction.

18. The transparent OLED device of claim 16 , wherein the integrated sub-pixel regions are on opposite sides of the transmissive area.

Assignees

• Lg Display Co Ltd

Inventors

• Kim Jongsung
• Ryu Jiho

Classifications

• H01L27/326 Primary

  Electricity · mapped topic

• H01L27/3218

  Electricity · mapped topic

• H01L27/3246

  Electricity · mapped topic

• H10K59/84

  Parallel electrical configurations of multiple OLEDs · CPC title

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title