Organic light emitting diode display

Abstract

An organic light emitting diode (OLED) display includes a substrate where OLEDs are formed and an encapsulation member fixed onto the substrate while covering the OLEDs. The encapsulation member includes a photochromic material so that the encapsulation member is colored by external light.

1 . An organic light emitting diode (OLED) display, comprising:
 a substrate where OLEDs are formed; and   an encapsulation member that is fixed onto the substrate while covering the OLEDs,   wherein the encapsulation member includes a photochromic material so that the encapsulation member is colored by external light.   
     
     
         2 . The OLED display of  claim 1 , wherein the substrate is a semiconductor substrate, and the encapsulation member is an encapsulation substrate. 
     
     
         3 . The OLED display of  claim 2 , wherein the encapsulation substrate is formed of glass. 
     
     
         4 . The OLED display of  claim 2 , further comprising a photosensor disposed in an overlapped area of the semiconductor substrate and the encapsulation substrate. 
     
     
         5 . The OLED display of  claim 1 , wherein the encapsulation member is a thin film encapsulation layer comprising a plurality of inorganic layers and a plurality of organic layers that are alternately stacked. 
     
     
         6 . The OLED display of  claim 5 , wherein at least one of the plurality of inorganic layers and the plurality of organic layers comprises the photochromic material. 
     
     
         7 . The OLED display of  claim 5 , wherein the farthermost layer among the plurality of inorganic layers and the plurality of organic layers from the substrate includes the photochromic material. 
     
     
         8 . The OLED display of  claim 5 , wherein the inorganic layer is formed of one selected from a group of aluminum oxide or silicon oxide, and the organic layer is formed of one selected from a group of epoxy, acrylate, and urethane acrylate. 
     
     
         9 . The OLED display of  claim 5 , further comprising a photosensor disposed between the thin film encapsulation layer and the substrate. 
     
     
         10 . The OLED display of  claim 1 , wherein the photochromic material comprises one selected from a group of silver halide, zinc halide, cadmium halide, copper halide, and magnesium halide. 
     
     
         11 . The OLED display of  claim 1 , wherein the photochromic material comprises one selected from a group of spiropyrane, spironaphthoxazine dye, diarylethene derivatives, dehydropyridine, furylfulgide derivatives, and azobenzene derivatives. 
     
     
         12 . The OLED display of  claim 1 , further comprising a photosensor disposed in an area where the substrate and the encapsulation member are overlapped. 
     
     
         13 . The OLED display of  claim 12 , further comprising:
 an analog to digital (A/D) converter receiving an analog signal output from the photosensor, and converting the analog signal into a digital signal;   a data driver receiving the digital signal output from the analog to digital converter, and providing a data voltage that corresponds to a coloration degree of the encapsulation member.   
     
     
         14 . The OLED display of  claim 13 , wherein the data driver further comprises a gamma controller.