Display, LED chip therefor, pixel therefor, controlling method therefor, computer program therefor

Patent metadata

Field	Value
Publication number	US-10535295-B2
Application number	US-201515520403-A
Country	US
Kind code	B2
Filing date	Oct 22, 2015
Priority date	Oct 22, 2014
Publication date	Jan 14, 2020
Grant date	Jan 14, 2020

Abstract

A display (100) comprising a plurality of LED chips (604), each LED chip (604) comprising a plurality of light emitting elements (606a-c). Each LED chip (604) is arranged such that a first light emitting element (606a) is configured to illuminate a sub-pixel, and a second light emitting element (606b) is configured to illuminate a sub-pixel using substantially the same wavelength of light as the first light emitting element. There is also described an LED chip, a display pixel, a controlling method, a computer device and a computer program for a display.

First claim

The invention claimed is:

1. A display comprising:
light emitting diode (LED) chips, each LED chip being a separate and singulated piece of semiconductor material and comprising a plurality of light emitting elements;
wherein each LED chip is arranged such that a first light emitting element is configured to illuminate a sub-pixel of a first display pixel, and a second light emitting element is configured to illuminate a sub-pixel of a second display pixel adjacent to the first pixel using the same wavelength of light as the first light emitting element, and each display pixel includes multiple sub-pixels with each sub-pixel being from a different LED chip.

2. The display according to claim 1 , wherein the first and second light emitting elements are selected from any of an inorganic LED and an organic LED.

3. The display according to claim 1 , wherein each LED chip comprises a plurality of Addressable Array Elements, each Addressable Array Element providing a light emitting element.

4. The display according to claim 1 , wherein each LED chip is integrated with a substrate, the substrate configured to provide control and power to each LED chip.

5. The display according to claim 4 , wherein the substrate comprises any of an active matrix control and a passive matrix control.

6. The display according to claim 1 , further comprising an optical film disposed over the plurality of LED chips, the optical film configured to direct light from each light emitting element.

7. The display according to claim 1 , wherein each LED chip has a geometric shape such that each light emitting element is located at a corner of the LED chip.

8. The display according to claim 1 , wherein each LED chip is triangular, having a light emitting element located towards each corner, and each display pixel is hexagonal, each LED chip being located at an intersection of three adjacent display pixels thereby forming a sub-pixel in each of the three adjacent display pixels.

9. The display according to claim 1 , wherein the first and second light emitting elements of each LED chip share a common cathode.

10. The display according to claim 1 , wherein each LED chip is triangular, having a light emitting element located towards each corner, to provide a sub-pixel in each of three adjacent display pixels.

11. The LED chip according to claim 10 , further comprising a plurality of Addressable Array Elements, each Addressable Array Element providing a light emitting element.

12. The LED chip according to claim 10 , wherein the LED chip is integrated with a substrate, the substrate configured to provide control and power to the LED chip.

13. A method of controlling a display, the method comprising controlling power to a plurality of light emitting elements located in a display pixel of the display,
each light emitting element in the display pixel provided by a different light emitting diode (LED) chip,
each LED chip being a separate and singulated piece of semiconductor material and including multiple of light emitting elements that emit light of the same wavelength, the multiple light emitting elements of each LED chip each providing a sub-pixel of a different display pixel.

14. A computer device comprising:
a display including display pixels, wherein each light emitting element in a display pixel is provided by a different light emitting diode (LED) chip, each LED chip being a separate and singulated piece of semiconductor material and including multiple of light emitting elements that emit light of the same wavelength, the multiple light emitting elements of each LED chip each providing a sub-pixel of a different display pixel; and
a processor connected to the display and configured to control power to the light emitting elements located in the display pixel of the display.

15. The computer device of claim 14 , wherein
the light emitting elements in the display pixel emit light at different wavelengths.

16. The method of claim 13 , wherein
the plurality of light emitting elements located in the display pixel emit light at different wavelengths.

Assignees

• Facebook Tech Llc

Inventors

• Hughes Padraig
• Henry William
• O'Keeffe Joseph

Classifications

• H10W90/00 Primary

  Package configurations · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G3/32

  semiconductive, e.g. using light-emitting diodes [LED] · CPC title

• G09G2300/0452

  Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components · CPC title

• G09G2330/08

  Fault-tolerant or redundant circuits, or circuits in which repair of defects is prepared · CPC title