Macro-image OLED lighting system

Patent metadata

Field	Value
Publication number	US-9865672-B2
Application number	US-201414278150-A
Country	US
Kind code	B2
Filing date	May 15, 2014
Priority date	May 15, 2013
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

Techniques to fabricate and assemble a lighting system including multiple patterned OLED lighting panels to form a high-resolution macro image are provided. An image to be displayed is determined and divided into multiple portions. Patterned static OLED lighting panels that display each portion of the image are fabricated and assembled into a fixture to form a macro-image lighting system. The fixture may removably receive and hold individual panels, such that each panel may be replaced if any malfunction occurs. Each of the patterned OLED panels may be individually driven through an electrical connection within the fixture so as to be operated at substantially the same brightness and/or same chromaticity.

First claim

The invention claimed is:

1. A method, comprising:
obtaining a static image;
generating a plurality of static image portions of the static image, wherein the plurality of static image portions forms the entire static image, and at least two of the plurality of static image portions are non-identical;
fabricating a plurality of static organic light emitting device (OLED) panels, wherein each static OLED panel in the plurality of static OLED panels is configured to display only a respective static image portion of the plurality of static image portions and comprises at least one pixel, and all pixels in each of the static OLED panels in the plurality of static OLED panels share a common anode and a common cathode; and
placing the plurality of static OLED panels in a fixture in an arrangement configured to reproduce the entire static image
wherein fabricating the plurality of static OLED panels further comprises, for at least one static OLED panel in the plurality of static OLED panels, disposing a plurality of insulating dots within the at least one static OLED panel to form the image portion.

2. The method of claim 1 , wherein each static OLED panel in the plurality of static OLED panels displays the only a respective one of the plurality of static image portions when electrical power is applied to the static OLED panel.

3. The method of claim 1 , wherein the fixture comprises a plurality of electrical connections, and each of the plurality of electrical connections is configured to provide electrical power to a respective one of the plurality of static OLED panels when the plurality of static OLED panels are disposed within the fixture.

4. The method of claim 1 , wherein the step of fabricating the plurality of static OLED panels comprises, for each static OLED panel in the plurality of static OLED panels, depositing, on a substrate, a plurality of layers comprising an anode, a cathode, and an organic emissive layer.

5. The method of claim 4 , further comprising using a common mask to fabricate at least one layer in the plurality of layers for each static OLED panel in the plurality of static OLED panels.

6. The method of claim 1 , wherein the step of fabricating the plurality of static OLED panels further comprises:
fabricating each static OLED panel in the plurality of static OLED panels on a common substrate; and
separating the common substrate into a plurality of substrate portions, wherein each static OLED panel is disposed on a single substrate portion in the plurality of substrate portions.

7. The method of claim 1 , wherein each static OLED panel in the plurality of static OLED panels has essentially the same shape and area.

8. The method of claim 1 , wherein a first static OLED panel in the plurality of static OLED panels has a different area than a second static OLED panel in the plurality of static OLED panels.

9. The method of claim 1 , wherein the step of disposing the plurality of insulating dots comprises patterning the insulating dots using a photolithographic technique.

10. The method of claim 1 , wherein the step of disposing the plurality of insulating dots comprises applying a photoresistive material to define a position of each of the plurality of insulating dots.

11. The method of claim 1 , wherein the step of disposing the plurality of insulating dots comprises depositing the plurality of insulating dots via a printed plastic sheet.

12. The method of claim 1 , wherein each static OLED panel in the plurality of static OLED panels is individually addressable via the fixture.

13. The method of claim 1 , wherein at least one static OLED panel in the plurality of static OLED panels is at least 10% transparent when no electrical power is applied to the at least one static OLED panel.

14. The method of claim 1 , wherein at least one static OLED panel in the plurality of static OLED panels is flexible.

15. The method of claim 1 , further comprising, subsequent to placing each static OLED panel in the plurality of static OLED panels into the fixture, adjusting driving parameters for at least a first static OLED panel in the plurality of static OLED panels to achieve a uniform luminance with at least a second static OLED panel in the plurality of static OLED panels.

16. The method of claim 1 , further comprising, subsequent to placing each static OLED panel in the plurality of static OLED panels in the fixture, adjusting driving parameters for at least a first static OLED panel in the plurality of static OLED panels to achieve a uniform chromaticity with at least a second static OLED panel in the plurality of static OLED panels.

17. The method of claim 1 , wherein each of the static OLED panels in the plurality of static OLED panels is bezel-less.

18. A method, comprising:
obtaining a static image;
generating a plurality of static image portions of the static image, wherein the plurality of static image portions forms the entire static image, and at least two of the plurality of static image portions are non-identical;
fabricating a plurality of static organic light emitting device (OLED) panels, wherein each static OLED panel in the plurality of static OLED panels is configured to display only a respective static image portion of the plurality of static image portions and comprises at least one pixel, and all pixels in each of the static OLED panels in the plurality of static OLED panels share a common anode and a common cathode; and
placing the plurality of static OLED panels in a fixture in an arrangement configured to reproduce the entire static image,
wherein the step of fabricating the plurality of static OLED panels further comprises, for at least one static OLED panel of the plurality of static OLED panels:
fabricating a plurality of pixels, wherein each pixel in the plurality of pixels is electrically coupled to a respective fuse in a plurality of fuses, and each fuse in the plurality of fuses is configured to limit current to the respective pixel, and
applying energy to a fuse in the plurality of fuses to cause the fuse to be essentially non-conductive.

19. An organic light emitting device (OLED) system for displaying a primary static image, the system comprising:
a plurality of static OLED panels disposed within a common fixture, wherein each static OLED panel in the plurality of static OLED panels is configured to display only a static sub-image, all pixels within each static OLED panel in the plurality of static OLED panels share a common anode and a common cathode, and at least one static OLED panel in the plurality of static OLED panels is configured to display a different static sub-image than at least one other static OLED panel,
wherein the static sub-images provide the entire primary static image when the entire plurality of static OLED panels is disposed within the common fixture, and
wherein the plurality of static OLED panels further comprises, for at least one static OLED panel in the plurality of static OLED panels, a plurality of insulating dots within the at least one static OLED panel to form the image portion.

20. The system of claim 19 , wherein each of the plurality of static OLED panels is individually addressable via the common fixture.

21. The system of claim 19 , further comprising a controller configured to drive the plurality of static OLED panels at a uniform luminance.

22. An organic light emitting device (OLED) system for displaying a primary static image, the system comprising:
a plurality of static OLED panels dis

Assignees

• Universal Display Corp

Inventors

• Krall Emory
• Pang Huiqing
• Paynter Jason
• Silvernail Jeffrey
• Ma Ruiqing

Classifications

• H01L2924/0002

  Electricity · mapped topic

• H01L2924/00

  Electricity · mapped topic

• H01L25/047

  Electricity · mapped topic

• H01L27/3293 Primary

  Electricity · mapped topic

• H01L27/3239

  Electricity · mapped topic