×

DISPLAY APPARATUS

  • US 20120162138A1
  • Filed: 09/06/2011
  • Published: 06/28/2012
  • Est. Priority Date: 12/27/2010
  • Status: Active Grant
First Claim
Patent Images

1. A display apparatus comprising:

  • a display panel that displays an image using a first light;

    a light guide part positioned at a front side of the display panel to emit a second light different from the first light and guide the second light;

    a backlight unit positioned at a rear side of the display panel to provide the first light to the display panel;

    an image information collecting part that photographs the second light emitted from the light guide part to output an image information; and

    a processing part that processes the image information to generate a coordinate value of a position at which an object provided on the light guide plate is positioned, wherein the backlight unit comprises;

    a plurality of first light sources that emit the first light; and

    a diffusion plate disposed between the display panel and the first light sources to diffuse the first light emitted from the first light sources, the diffusion plate being provided with a plurality of openings formed therethrough, wherein the image information collecting part comprises;

    a plurality of lenses that receive the second light emitted from the light guide plate, the lenses being provided to correspond to the openings in one-to-one correspondence;

    a plurality of optical fiber groups that guide the second light provided through the lenses, ends of the optical fiber groups being accommodated in the openings, respectively; and

    at least one camera disposed below the diffusion plate to photograph the second light guided by the optical fiber groups and output the image information.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×