Array of luminescent elements

Abstract

Light emitting systems and method of fabricating the same are disclosed. The light emitting system includes two or more monolithically integrated luminescent elements. Each luminescent element includes an electroluminescent device and a dedicated switching circuit for driving the electroluminescent device. At least one luminescent element includes a potential well for down converting light emitted by the electroluminescent device in the luminescent element.

What is claimed is: 
     
         1 . A light emitting system, comprising:
 two or more monolithically integrated luminescent elements, each luminescent element in the two or more luminescent elements comprising an electroluminescent device and a dedicated switching circuit for driving the electroluminescent device, wherein at least one luminescent element in the two or more luminescent elements comprises a potential well for down converting light emitted by the electroluminescent device in the luminescent element.   
     
     
         2 . The light emitting system of  claim 1 , wherein the switching circuit comprises at least one transistor. 
     
     
         3 . The light emitting system of  claim 1 , wherein the switching circuit comprises at least one capacitor. 
     
     
         4 . The light emitting system of  claim 1 , wherein the switching circuit comprises a drive transistor for controlling current flow through the electroluminescent device and a switch transistor for controlling voltage at a gate electrode of the drive transistor. 
     
     
         5 . The light emitting system of  claim 1 , wherein the electroluminescent devices in the two or more monolithically integrated luminescent elements are monolithically integrated. 
     
     
         6 . The light emitting system of  claim 1 , wherein the electroluminescent device and the switching circuit in each luminescent element in the two or more luminescent elements are fabricated on separate substrates. 
     
     
         7 . The light emitting system of  claim 1 , wherein the electroluminescent device and the switching circuit in each luminescent element in the two or more luminescent elements are monolithically integrated. 
     
     
         8 . The light emitting system of  claim 1 , wherein the potential well and the electroluminescent device in the at least one luminescent element are fabricated on different substrates. 
     
     
         9 . The light emitting system of  claim 1 , wherein the potential well in the at least one luminescent element comprises an inorganic potential well. 
     
     
         10 . The light emitting system of  claim 1 , wherein the potential well in the at least one luminescent element comprises a II-VI semiconductor. 
     
     
         11 . The light emitting system of  claim 1 , wherein the potential well in the at least one luminescent element comprises CdMgZnSe. 
     
     
         12 . The light emitting system of  claim 1 , wherein the potential well and the electroluminescent device in the at least one luminescent element are from at least two different semiconductor groups. 
     
     
         13 . The light emitting system of  claim 12 , wherein the at least two different semiconductor groups comprise II-VI and III-V semiconductor groups. 
     
     
         14 . The light emitting system of  claim 1  further comprising light blocking elements to reduce optical cross talk between the two or more luminescent elements. 
     
     
         15 . A light emitting system, comprising:
 two or more monolithically integrated luminescent elements, each luminescent element in the two or more luminescent elements comprising an electroluminescent device, wherein at least one luminescent element in the two or more luminescent elements comprises a potential well for down converting light emitted by the electroluminescent device in the luminescent element.   
     
     
         16 . The light emitting system of  claim 15 , wherein the potential well in the at least one luminescent element comprises an inorganic potential well. 
     
     
         17 . The light emitting system of  claim 15 , wherein no luminescent element in the two or more monolithically integrated luminescent elements has a dedicated switching circuit for driving the electroluminescent device in the luminescent element. 
     
     
         18 . The light emitting system of  claim 15 , wherein the electroluminescent devices in the two or more monolithically integrated luminescent elements are monolithically integrated.