OLED Display Backlight

• US 20180075814A1
• Filed: 09/06/2017
• Published: 03/15/2018
• Est. Priority Date: 09/09/2016
• Status: Abandoned Application

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Parikh, Kunjal
• Application Number:
  US15/697,057
• Publication Number:
  US 20180075814A1
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/133603 with LEDs
• CPC Class Codes: G09G 2320/046 Dealing with screen burn-in prevention or compensation of the effects thereof
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2320/103 Detection of image changes, e.g. determination of an index representative of the image change
• CPC Class Codes: G09G 3/3426 the different display panel areas being distributed in two dimensions, e.g. matrix
• CPC Class Codes: G09G 3/3622 using a passive matrix G09G3/3674 - G09G3/3696 take precedence
• CPC Class Codes: H10K 50/8428 Vertical spacers, e.g. arranged between the sealing arrangement and the OLED
• CPC Class Codes: H10K 59/50 OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
• CPC Class Codes: H10K 59/8723 Vertical spacers, e.g. arranged between the sealing arrangement and the OLED

Abstract

In one example, a display backlight includes organic light emitting diodes patterned in a segmented manner, and one or more spacers spaced between the white organic light emitting diodes.

Claims

1. A display backlight comprising:

white organic light emitting diodes patterned in a segmented manner; and

one or more spacers spaced between the white organic light emitting diodes.

2. The display backlight of claim 1, comprising a substrate adjacent to the white organic light emitting diodes and the one or more spacers.

3. The display backlight of claim 1, comprising an encapsulation layer to encapsulate the white organic light emitting diodes.

4. The display backlight of claim 2, comprising an encapsulation layer to encapsulate the white organic light emitting diodes.

5. The display backlight of claim 1, wherein the white organic light emitting diodes are patterned in an array of rows and columns separated by the one or more spacers.

6. A display comprising:

a display screen; and

a backlight including white organic light emitting diodes patterned in a segmented manner, and one or more spacers spaced between the white organic light emitting diodes.

7. The display of claim 6, the display backlight comprising a substrate, the white organic light emitting diodes and the one or more spacers formed on a layer above the substrate.

8. The display of claim 6, the display backlight comprising an encapsulation layer to encapsulate the white organic light emitting diodes.

9. The display of claim 7, the display backlight comprising an encapsulation layer to encapsulate the white organic light emitting diodes.

10. The display of claim 6, wherein the white organic light emitting diodes are patterned in an array of rows and columns separated by the one or more spacers.

11. The display of claim 6, wherein the display screen is a liquid crystal display screen.

12. A method of forming a display, comprising:

forming a display screen;

forming a substrate;

forming on the substrate a pattern of white organic light emitting diodes; and

encapsulating the white organic light emitting diodes.

13. The method of forming a display of claim 12, comprising assembling the display screen together with the substrate and the encapsulated white organic light emitting diodes.

14. The method of claim 12, wherein the white organic light emitting diodes are patterned in an array of rows and columns separated by one or more spacers.

15. The method of claim 12, wherein the display screen is a liquid crystal display screen.

16. A system comprising:

storage to store instructions; and

a processor to execute the instructions to;

monitor a display image;

determine if the display image is static; and

if the display image is static, turn on pixels in a display backlight.

17. The system of claim 16, the processor to execute the instructions to drive the display backlight in a high dynamic range mode if the display image is not static.

18. The system of claim 16, the processor to execute the instructions to monitor a video frame buffer.

19. The system of claim 16, wherein the display backlight includes white organic light emitting diodes patterned in a segmented manner and one or more spacers spaced between the white organic light emitting diodes.

20. The system of claim 19, wherein the display backlight includes a substrate adjacent to the white organic light emitting diodes and the one or more spacers.

21. The system of claim 19, wherein the display backlight includes an encapsulation layer to encapsulate the white organic light emitting diodes.

22. The system of claim 19, wherein the white organic light emitting diodes are patterned in an array of rows and columns separated by the one or more spacers.

23. One or more tangible, non-transitory machine readable media comprising a plurality of instructions that, in response to being executed on at least one processor, cause the at least one processor to:

monitor a display image;

determine if the display image is static; and

if the display image is static, turn on pixels in a display backlight.

24. The one or more tangible, non-transitory machine readable media of claim 24, comprising a plurality of instructions that, in response to being executed on the at least one processor, cause the at least one processor to:

drive the display backlight in a high dynamic range mode if the display image is not static.

25. The one or more tangible, non-transitory machine readable media of claim 24, comprising a plurality of instructions that, in response to being executed on at least one processor, cause the at least one processor to:

monitor a video frame buffer.

26. The one or more tangible, non-transitory machine readable media of claim 24, wherein the display backlight includes white organic light emitting diodes patterned in a segmented manner and one or more spacers spaced between the white organic light emitting diodes.