Display devices with image sensor

Abstract

A display device is provided. The display device includes a display panel that has a display region. The display device also includes at least one image sensor that overlaps with the display region. The at least one image sensor includes a light-sensing element and at least one light-receiving element disposed on the light-sensing element.

What is claimed is: 
     
         1 . A display device, comprising:
 a display panel having a display region; and   at least one image sensor overlapping the display region, wherein one of the at least one image sensor has a focal length, and the focal length is greater than a distance between the one of the at least one image sensor and the display panel, and wherein the at least one image sensor comprises:
 a light-sensing element; and 
 at least one light-receiving element disposed on the light-sensing element. 
   
     
     
         2 . The display device as claimed in  claim 1 , further comprises a substrate and a supporting substrate disposed between the substrate and the at least one image sensor. 
     
     
         3 . The display device as claimed in  claim 1 , wherein the display panel includes a light-receiving region, and the light-receiving region has at least one region with an average light transmittance that is greater than 1% and less than 100%. 
     
     
         4 . The display device as claimed in  claim 3 , wherein the average light transmittance is greater than 5% and less than 100%. 
     
     
         5 . The display device as claimed in  claim 1 , wherein the display panel comprises a plurality of light-emitting units, and one of the at least one light-receiving element overlaps at least one of the plurality of light-emitting units. 
     
     
         6 . The display device as claimed in  claim 1 , wherein the display panel comprises a plurality of light-emitting units, and an area of one of the at least one light-receiving element is greater than an area of one of the plurality of light-emitting units from a top view. 
     
     
         7 . The display device as claimed in  claim 1 , wherein the display region further comprises a non-display region adjacent to the display region, the display region has a central region far from the non-display region, the central region occupies 50% to 95% of the display region, and the at least one image sensor is disposed in the central region. 
     
     
         8 . The display device as claimed in  claim 1 , wherein the display panel comprises a substrate and a plurality of light-emitting units, and the substrate comprises a plurality of thin film transistors used to drive the plurality of light-emitting units. 
     
     
         9 . The display device as claimed in  claim 8 , wherein at least one of the thin film transistors comprises a semiconductor layer, and a material of the semiconductor layer comprises amorphous silicon, polysilicon or metal oxide. 
     
     
         10 . A display device, comprising:
 a display panel having a display region; and   at least one sensor overlapping the display region, wherein one of the at least one sensor has a focal length, and the focal length is greater than a distance between the one of the at least one sensor and the display panel.   
     
     
         11 . The display device as claimed in  claim 10 , further comprises a substrate and a supporting substrate disposed between the substrate and the at least one sensor. 
     
     
         12 . The display device as claimed in  claim 10 , wherein the display panel includes a light-receiving region, and the light-receiving region has at least one region with an average light transmittance is greater than 1% and less than 100%. 
     
     
         13 . The display device as claimed in  claim 12 , wherein the average light transmittance that is greater than 5% and less than 100%. 
     
     
         14 . The display device as claimed in  claim 10 , wherein the display panel comprises a plurality of light-emitting units and the at least one sensor comprises at least one light-receiving element, and one of the at least one light-receiving element overlaps at least one of the plurality of light-emitting units. 
     
     
         15 . The display device as claimed in  claim 14 , wherein the display panel comprises a plurality of light-emitting units, and an area of one of the at least one light-receiving element is greater than an area of one of the plurality of light-emitting units from a top view. 
     
     
         16 . The display device as claimed in  claim 10 , wherein the display region further comprises a non-display region adjacent to the display region, the display region has a central region far from the non-display region, the central region occupies 50% to 95% of the display region, and the at least one sensor is disposed in the central region. 
     
     
         17 . The display device as claimed in  claim 10 , wherein the display panel comprises a substrate and a plurality of light-emitting units, and the substrate comprises a plurality of thin film transistors used to drive the plurality of light-emitting units. 
     
     
         18 . The display device as claimed in  claim 17 , wherein at least one of the thin film transistors comprises a semiconductor layer, and a material of the semiconductor layer comprises amorphous silicon, polysilicon or metal oxide. 
     
     
         19 . The display device as claimed in  claim 11 , wherein the substrate has an extensive region that is a bended region of the substrate, and the at least one sensor is disposed on the extensive region. 
     
     
         20 . The display device as claimed in  claim 19 , wherein the display device comprises multiple openings penetrating the supporting substrate and the substrate and extending to the extensive region of the substrate.