Display device with position detecting function and electronic apparatus

Abstract

A display device with a position detecting function includes: an optical position detecting device which includes a position detecting light source for alternately emitting position detecting infrared light having a light amount attenuated along a predetermined direction and position detecting infrared light having a light amount attenuated along a reverse direction of the predetermined direction, and a light receiving element for receiving the position detecting infrared light reflected by a target object inside a detection region, and which detects a position of the target object on the basis of a light amount detection result of the light receiving element; and an image creating device which includes an image display region of an electric optical panel in a region overlapped with the detection region, wherein the light receiving element is constituted by a semiconductor element formed on the electric optical panel.

What is claimed is: 
     
         1 . A display device with a position detection function comprising:
 an electro optical panel that displays an image, the electro optical panel having a plurality of pixels, a light receiving element being disposed in an area of one of the plurality of pixels of the electro optical panel; and   a position detecting light source that emits a position detecting light,   the light receiving element being shielded by a light shield that is disposed at a first side of the light receiving element.   
     
     
         2 . The display device with the position detecting function according to  claim 1 ,
 a position of a target object being detected based on a light detected by the light receiving element, the light being reflected by the target object that is on a second side of the light receiving element.   
     
     
         3 . The display device with the position detecting function according to  claim 1 ,
 a irradiating position detection light irradiating the target object from a direction from the first side toward the second side.   
     
     
         4 . The display device with the position detecting function according to  claim 1 ,
 the position detecting light being infrared light.   
     
     
         5 . The display device with the position detecting function according to  claim 1 ,
 the plurality of pixels including a plurality of first pixels that corresponds a first color, and a plurality of second pixels that corresponds a second color,   a first light receiving element being disposed in a first area of one of the plurality of first pixels, a second light receiving element being disposed in a second area of another one of the plurality of first pixels.   
     
     
         6 . The display device with the position detecting function according to  claim 1 , further comprising:
 a light guiding plate that is disposed at the first side, the light guiding plate receiving the position detecting light and emitting a first position detecting light to the target object.   
     
     
         7 . The display device with the position detecting function according to  claim 1 ,
 a first position detecting light source of the position detecting light source emitting first position detecting light, and a second position detecting light source of the position detecting light source emitting second position detecting light.   
     
     
         8 . The display device with the position detecting function according to  claim 7 ,
 the first position detecting light intersecting the second position detecting light.   
     
     
         9 . An electronic apparatus comprising:
 the display device with the position detecting function according to  claim 1 .