Heterogeneous light emitter display system

• US 10,380,930 B2
• Filed: 08/24/2015
• Issued: 08/13/2019
• Est. Priority Date: 08/24/2015
• Status: Active Grant

• Current Assignee: X Display Company Technology Limited (Sensinnovat BVBA)
• Original Assignee: X-Celeprint Limited
• Inventors: Cok, Ronald S., Bower, Christopher, Meitl, Matthew
• Primary Examiner(s): Adams, Carl
• Application Number:
  US14/834,042
• Publication Number:
  US 20170061842A1
• Time in Patent Office: 1,450 Days
• Field of Search: None
• CPC Class Codes: G09G 2300/0443 with several sub-pixels for the same colour in a pixel, not specifically used to display gradations G09G3/364 takes precedence
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2320/0242 Compensation of deficiencies in the appearance of colours
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: H10K 59/35 comprising red-green-blue [RGB] subpixels
• CPC Class Codes: H10K 59/351 comprising more than three subpixels, e.g. red-green-blue-white [RGBW]

Abstract

A heterogeneous light-emitter display includes a display substrate having a plurality of pixels disposed thereon. Each pixel including at least a first heterogeneous multiple-component sub-pixel emitting a first color of light and a second sub-pixel emitting a second color of light different from the first color. A heterogeneous light-emitter display can also include an array of heterogeneous pixels. Each heterogeneous pixel includes a plurality of first pixels and a plurality of second pixels. The first sub-pixel of each of the first pixels includes a first light emitter and the first sub-pixel of each of the second pixels includes a second light emitter different from the first light emitter. One or more pixel controllers control the pixels, the first and second pixels, the first and second sub-pixels, and the first and second light emitters.

Claims

1. A heterogeneous light-emitter display, comprising:

a display substrate having a plurality of pixels disposed thereon, each pixel comprising at least a first heterogeneous multiple-component sub-pixel emitting a first color of light and a second sub-pixel emitting a second color of light different from the first color; and

one or more pixel controllers for controlling the pixels and the first and second sub-pixels,

wherein the display is operable to simultaneously emit light from each light emitter in the first heterogeneous multiple-component sub-pixel, and

wherein the first heterogeneous multiple-component sub-pixel comprises a first light emitter and a second light emitter, and the first light emitter and the second light emitter emit light that has corresponding differences in a light-emission attribute, and wherein the combination of the light emitted from the first light emitter and the second light emitter is less variable with respect to the light-emission attribute than the light emitted individually from each of the first light emitter and the second light emitter, thereby mutually compensating for the differences in the light-emission attribute.

2. The display of claim 1, wherein each pixel comprises a red sub-pixel that emits red light, a green sub-pixel that emits green light, and a blue sub-pixel that emits blue light.

3. The display of claim 1, wherein the first heterogeneous multiple-component sub-pixel comprises a first light emitter and a second light emitter different from the first light emitter.

4. The display of claim 3, wherein the first light emitter emits a different hue, tint, or shade of a color of light than the second light emitter in response to a common control signal.

5. The display of claim 3, wherein the first light emitter emits a different spectrum of light than the second light emitter.

6. The display of claim 3, wherein the first light emitter has a different size than the second light emitter.

7. The display of claim 3, wherein the first light emitter emits a different brightness than the second light emitter in response to a common control signal.

8. The display of claim 3, wherein the first light emitter has a different efficiency than the second light emitter.

9. The display of claim 3, wherein the first light emitter has a different angular distribution of emitted light than the second light emitter.

10. The display of claim 3, wherein:

the first light emitter emits a different hue, tint, or shade of a color of light than the second light emitter in response to a common control signal,

the first light emitter emits a different spectrum of light than the second light emitter,

the first light emitter has a different size than the second light emitter,

the first light emitter emits a different brightness than the second light emitter in response to a common control signal,

the first light emitter has a different efficiency than the second light emitter,

the first light emitter has a different angular distribution of emitted light than the second light emitter,

the first light emitter has a different electronic property or response than the second light emitter,

the first light emitter emits light using a different physical mechanism than the second light emitter, or

the first light emitter has a different physical structure than the second light emitter.

11. The display of claim 1, comprising a third sub-pixel that emits light of a third color of light different from the first color and different from the second color.

12. The display of claim 11, wherein the third sub-pixel is a heterogeneous sub-pixel.

13. The display of claim 1, wherein the first light emitter is a relatively smaller light-emitting diode and the second light emitter is relatively larger light-emitting diode.

14. The display of claim 1, wherein the one or more pixel controllers comprises a control circuit that controls the first light emitter to emit light corresponding to a first brightness and the second light emitter to emit light corresponding to a second brightness different from the first brightness.

15. The display of claim 1, wherein the one or more pixel controllers comprises a control circuit that controls the first light emitter to emit light corresponding to a first image pixel and the second light emitter to emit light corresponding to a second image pixel different from the first image pixel.

16. The display of claim 1, wherein the one or more pixel controllers control the first and second light emitters to emit light corresponding to the same image pixel.

17. The display of claim 1, wherein the pixels are spatially distributed and wherein the first and second light emitters in a sub-pixel are adjacent.

18. The display of claim 1, wherein the second sub-pixel comprises one or more light emitters, wherein the pixels are spatially distributed, and wherein the first and second light emitters in the first sub-pixel are spatially separated by the one or more light emitters of the second sub-pixel.

19. The heterogeneous light-emitter display of claim 1, wherein each of the pixels is disposed on an independent pixel substrate that is disposed on the display substrate.

20. The heterogeneous light-emitter display of claim 1, wherein the at least a first heterogeneous multiple-component sub-pixel comprises an organic light emitter and an inorganic light emitter.

21. A heterogeneous light-emitter display, comprising:

a display substrate having an array of heterogeneous double pixels disposed thereon, each pixel of the double pixel comprising at least first and second sub-pixels that emit corresponding first and second different colors of light;

the heterogeneous double pixels comprising a plurality of first pixels and a plurality of second pixels, the first sub-pixel of each of the first pixels comprising a first light emitter and the first sub-pixel of each of the second pixels comprising a second light emitter different from the first light emitter; and

one or more pixel controllers for controlling the pixels, the first and second pixels, the first and second sub-pixels, and the first and second light emitters,

wherein the first light emitter and the second light emitter are heterogeneous and the display is operable to simultaneously emit light from the first light emitter and the second light emitter, and

wherein the first light emitter and the second light emitter emit light that has corresponding differences in a light-emission attribute, and wherein the combination of the light emitted from the first light emitter and the second light emitter is less variable with respect to the light-emission attribute than the light emitted individually from each of the first light emitter and the second light emitter, thereby mutually compensating for the differences in the light-emission attribute.

22. The heterogeneous light-emitter display of claim 21, wherein the second sub-pixel of each of the first pixels comprises a first light emitter and the second sub-pixel of each of the second pixels comprises a second light emitter different from the first light emitter, or wherein the third sub-pixel of each of the first pixels comprises a first light emitter and the third sub-pixel of each of the second pixels comprises a second light emitter different from the first light emitter, or both.

23. A heterogeneous light-emitter display, comprising:

a display substrate having a plurality of pixels disposed thereon, each pixel comprising at least a first heterogeneous multiple-component sub-pixel emitting a first color of light and a second sub-pixel emitting a second color of light different from the first color; and

one or more pixel controllers for controlling the pixels,

wherein first and second light emitters of the heterogeneous sub-pixels of the plurality of pixels have corresponding first and second distributions of light emission frequencies, and wherein the combination of the first and second distributions is less variable than the each of the first and second distributions.