Display apparatus, head-mounted display apparatus, image display method, and image display system

Abstract

A display apparatus includes a first pixel and a second pixel. Each of the first and second pixels includes a first sub-pixel which emits light having a first color, a second sub-pixel which emits light having a second color different from the first color, a third sub-pixel which emits light having a third color different from the first and second colors, and an infrared sub-pixel which emits infrared light. The infrared light emitted from the infrared sub-pixel in the first pixel and the infrared light emitted from the infrared sub-pixel in the second pixel have different intensities from each other.

What is claimed is: 
     
         1 . A display apparatus comprising:
 a first pixel; and   a second pixel,   wherein each of the first and second pixels comprises:
 a first sub-pixel which emits light having a first color; 
 a second sub-pixel which emits light having a second color, which is different from the first color; 
 a third sub-pixel which emits light having a third color, which is different from the first and second colors; and 
 an infrared sub-pixel which emits infrared light, 
   wherein the infrared light emitted from the infrared sub-pixel in the first pixel and the infrared light emitted from the infrared sub-pixel in the second pixel have different intensities from each other.   
     
     
         2 . The display apparatus of  claim 1 , wherein the first color, the second color and the third color are red, green and blue, respectively. 
     
     
         3 . The display apparatus of  claim 1 , wherein the infrared light emitted from the infrared sub-pixel in the first pixel and the infrared light emitted from the infrared sub-pixel in the second pixel have substantially the same frequency as each other. 
     
     
         4 . The display apparatus of  claim 3 , further comprising:
 a plurality of pixels comprising the first and second pixels; and   a controller which controls intensities of infrared light emitted by an infrared sub-pixel in each of the plurality of pixels, based on data of a depth difference between the plurality of pixels.   
     
     
         5 . The display apparatus of  claim 1 , wherein the infrared sub-pixel comprises:
 an infrared driver circuit; and   an infrared inorganic light-emitting diode electrically connected to and driven by the infrared driver circuit.   
     
     
         6 . The display apparatus of  claim 5 , further comprising:
 a first electrode electrically connected to the infrared driver circuit and contacting an end of the infrared inorganic light-emitting diode; and   a second electrode facing the first electrode and contacting another end of the infrared light-emitting diode,   wherein the second electrode is commonly disposed in the first sub-pixel, the second sub-pixel, the third sub-pixel, and the infrared sub-pixel.   
     
     
         7 . The display apparatus of  claim 5 , wherein the infrared sub-pixel further comprises a light spreading layer which spreads infrared light emitted by the infrared inorganic light-emitting diode. 
     
     
         8 . The display apparatus of  claim 5 , wherein each of the first to third sub-pixels comprises an organic light emitting diode. 
     
     
         9 . The display apparatus of  claim 5 , wherein each of the first to third sub-pixels comprises an inorganic light emitting diode. 
     
     
         10 . A head-mounted display apparatus comprising:
 a camera which receives visible light emitted by an object and converts the visible light into an electric signal;   an infrared sensor which receives infrared light emitted by the object;   a signal processor which generates three-dimensional rendering data based on color data obtained by the camera and depth data obtained by the infrared sensor; and   a display unit which receives the three-dimensional rendering data from the signal processor and display an image corresponding to the three-dimensional rendering data.   
     
     
         11 . The head-mounted display apparatus of  claim 10 , wherein the signal processor comprises a data matching unit which matches the color data and the depth data based on a location of the object which emits the visible light and the infrared light. 
     
     
         12 . The head-mounted display apparatus of  claim 10 , further comprising:
 an optical device disposed on a path of light emitted by the display unit and which focuses the light on a predetermined area.   
     
     
         13 . The head-mounted display apparatus of  claim 10 , further comprising:
 a frame which accommodates the camera, the infrared sensor, the signal processor, and the display unit,   wherein the frame is shaped to be mounted on a head of a user.   
     
     
         14 . The head-mounted display apparatus of  claim 13 , further comprising:
 a lens unit accommodated in the frame and disposed between the object and the user,   wherein the lens unit comprises a transmittance adjusting unit which adjusts a transmittance of light incident from the object.   
     
     
         15 . The head-mounted display apparatus of  claim 14 , wherein the transmittance adjusting unit comprises a liquid crystal. 
     
     
         16 . An image display method using a head-mounted display apparatus, the method comprising:
 receiving visible light and infrared light from a display apparatus;   extracting color data and depth data from the visible light and the infrared light, respectively;   generating three-dimensional rendering data based on the color data and the depth data; and   displaying an image corresponding to the three-dimensional rendering data on the head-mounted display apparatus.   
     
     
         17 . The method of  claim 16 , wherein
 the display apparatus comprises a plurality of pixels, and   each of the plurality of pixels comprises a visible light sub-pixel which emits the visible light and an infrared sub-pixel which emits the infrared light.   
     
     
         18 . The method of  claim 17 , wherein the display apparatus further comprises a controller which controls intensities of infrared light emitted by the infrared sub-pixel in each of the plurality of pixels, based on data of a depth difference between the plurality of pixels. 
     
     
         19 . The method of  claim 17 , wherein the infrared sub-pixel comprises:
 an infrared driver circuit; and   an infrared inorganic light-emitting diode electrically connected to and driven by the infrared driver circuit.   
     
     
         20 . The method of  claim 17 , further comprising:
 before the generating the 3D rendering data, matching the color data and the depth data based on respective locations of the plurality of pixels in the display apparatus which emits the visible light and the infrared light.   
     
     
         21 . An image display system comprising:
 a display apparatus comprising a plurality of pixels emitting visible light and infrared light; and   a head-mounted display apparatus configured to receive the visible light and the infrared light from the display apparatus and display image;   wherein the head-mounted display apparatus comprises:
 a camera which receives the visible light emitted by the display apparatus and converts the visible light into an electric signal; 
 an infrared sensor which receives the infrared light emitted by the display apparatus; 
 a signal processor which generates three-dimensional rendering data based on color data obtained by the camera and depth data obtained by the infrared sensor; and 
 a display unit which receives the three-dimensional rendering data from the signal processor and display an image corresponding to the three-dimensional rendering data.