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

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.

1 - 22 . (canceled) 
     
     
         23 . A display comprising:
 a substrate; and   a plurality of separate and singulated light emitting diode (LED) chips on the substrate, each of the LED chips comprising:
 a first subset of the light emitting elements comprising first quantum dots or colloid phosphors by which light emitted by the first subset of the light emitting elements is converted into a first color, and 
 a second subset of the light emitting elements that emit light without passing light through the first quantum dots or colloid phosphors. 
   
     
     
         24 . The display of  claim 23 , wherein each of the LED chips further comprises a third subset of light emitting elements comprising a third subset of the light emitting elements comprising second quantum dots of colloid phosphors by which light emitted by the second subset of the light emitting elements is converted into a second color different from the first color. 
     
     
         25 . The display of  claim 24 , wherein light emitting elements of more than one of the LED chips form a single pixel. 
     
     
         26 . The display of  claim 24 , wherein each of the LED chips form a single pixel. 
     
     
         27 . The display of  claim 24 , wherein each of the LED chips have a triangular shape with the first subset, the second subset and the third subset at corners. 
     
     
         28 . The display of  claim 23 , wherein an anode contact and a cathode contact of each of the LED chips are at a same side of each of the LED chips. 
     
     
         29 . The display of  claim 23 , wherein each of the first and second subsets is individually addressable. 
     
     
         30 . A method of operating a display, comprising:
 emitting first light of a first color from a first light emitting element of each of a plurality of separate and singulated light emitting diode (LED) chips on a substrate;   emitting second light of the first color from a second light emitting element of each of the LED chips;   passing the second light through first quantum dots or colloid phosphors to convert the second light to a second color different from the first color; and   bypassing the quantum dots or colloid phosphors by the first light.   
     
     
         31 . The method of  claim 30 , further comprising:
 emitting third light of the first color from a third light emitting element of each of the LED chips; and   passing the third light through second quantum dots or colloid phosphors to convert the third light to a third color different from the first color and the second color.   
     
     
         32 . The method of  claim 31 , wherein each of the LED chips form a single pixel. 
     
     
         33 . The method of  claim 31 , wherein each of the LED chips have a triangular shape with the first subset, the second subset and the third subset at corners. 
     
     
         34 . The method of  claim 30 , wherein an anode contact and a cathode contact of each of the LED chips are at a same side of each of the LED chips. 
     
     
         35 . The method of  claim 30 , wherein each of the first and second emitting elements is individually addressable.