HIGH RESOLUTION LOW POWER CONSUMPTION OLED DISPLAY WITH EXTENDED LIFETIME

• US 20150349034A1
• Filed: 01/26/2015
• Published: 12/03/2015
• Est. Priority Date: 01/18/2013
• Status: Abandoned Application

• Current Assignee: Universal Display Corporation
• Original Assignee: Universal Display Corporation
• Inventors: HACK, Michael, WEAVER, Michael Stuart, BROWN, Julia J., SO, Woo-Young, BROWN, Candice H.
• Application Number:
  US14/605,876
• Publication Number:
  US 20150349034A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H10K 59/351 comprising more than three subpixels, e.g. red-green-blue-white [RGBW]
• CPC Class Codes: H10K 59/352 the areas of the RGB subpixels being different
• CPC Class Codes: H10K 59/353 characterised by the geometrical arrangement of the RGB subpixels
• CPC Class Codes: H10K 59/38 comprising colour filters or colour changing media [CCM]

Abstract

Systems and techniques are provided that allow for fabrication of full-color OLED displays that include only two colors of emissive regions and four or more sub-pixels within pixels of the device. Mask arrangements for fabricating such devices are also provided.

Claims

1. A full-color pixel arrangement for an OLED display comprising:

a substrate; and

a plurality of pixels, each pixel comprising emissive regions of exactly two colors;

wherein each emissive region in each pixel in the arrangement is adjacent to an emissive region of the same color in an adjacent pixel and adjacent to an emissive region of a different color in the same pixel.

2. The arrangement of claim 1, wherein the pixel arrangement includes sub-pixels that emit at least four colors.

3. A device comprising the full-color pixel arrangement of claim 1, wherein the device is a type selected from the group consisting of:

a flat panel display, a computer monitor, a medical monitor, a television, a billboard, a light for interior or exterior illumination, a signal, a color tunable or color temperature tunable lighting source, a heads-up display, a fully transparent display, a flexible display, a laser printer, a telephone, a cell phone, a personal digital assistant (PDA), a laptop computer, a digital camera, a camcorder, a viewfinder, a micro-display, a vehicle, a large area wall, a theater or stadium screen, and a sign.

4. The arrangement of claim 1, wherein each pixel comprises not more than two color altering layers.

5. The arrangement of claim 1, wherein at least one pixel comprises not more than three color altering layers.

6. The arrangement of claim 1, wherein each emissive region in each pixel in the arrangement is adjacent to an emissive region of the same color in an adjacent pixel in a direction parallel to a scan line in the OLED device.

7. The arrangement of claim 1, wherein each emissive region in each pixel in the arrangement is adjacent to an emissive region of the same color in an adjacent pixel in a direction parallel to a data line in the OLED device.

8. The arrangement of claim 1, wherein each emissive region in each pixel in the arrangement is adjacent to an emissive region of the same color in an adjacent pixel in a direction parallel to a data line in the OLED device, and is adjacent to an emissive region of the same color in an adjacent pixel in a direction parallel to a scan line in the OLED device.

9. The arrangement of claim 1, wherein each pixel comprises a yellow emissive region, and each yellow emissive region is adjacent to an emissive region of an adjacent pixel.

10. The arrangement of claim 1, wherein each pixel comprises blue and yellow emissive regions.

11. The arrangement of claim 10, wherein each pixel comprises at least one color altering layer, each color altering layer of a type selected from the group consisting of:

a green color altering layer and a red color altering layer.

12. A full-color display comprising the pixel arrangement of claim 1, wherein each pixel comprises a plurality of sub-pixels, and wherein the number of sub-pixels in at least a portion of the plurality of pixels is less than the number of colors of sub-pixels in the display.

17. The full-color OLED display of claim 5, wherein the two colors include light blue and yellow or deep blue and yellow.

13. A full-color OLED display comprising:

a plurality of pixels, each of the plurality of pixels comprising a plurality of sub-pixels;

wherein the display comprises sub-pixels of at least four different colors;

wherein, among all pixels of the plurality of pixels, there is exactly a single color transition among emissive regions between sub-pixels.

14. The full-color OLED display of claim 13, wherein among all sub-pixels of the plurality of sub-pixels, there is exactly a single color transition among emissive layers between sub-pixels in a direction parallel to scan lines of the display.

16. The full-color OLED display of claim 13, wherein the display includes emissive regions of only two colors.

15. (canceled)

18-19. -19. (canceled)

20. A device comprising a full-color OLED display, the OLED display comprising a plurality of pixels, each pixel comprising at least two emissive regions of different colors disposed adjacent to one another over a substrate;

wherein the OLED display has a resolution of at least 600 dpi.

21-30. -30. (canceled)

31. A device comprising a full-color OLED display, the OLED display comprising a plurality of pixels, each pixel comprising not more than two color altering layers;

wherein the OLED display has a resolution of at least 600 dpi.

32-77. -77. (canceled)