Patent ID: 9300948
Filing Date: 2016-03-29
CPC Classification: G02B,H04N

Claim Text:
1. A three dimensional (3D) image display apparatus comprising: a light modulator configured to modulate an image light; a difference map generator for receiving a variation value of a left two dimensional (2D) image and a variation value of a right 2D image, and determining an absolute value of a difference between the variation value of the left 2D image and the variation value of the right 2D image; an image processor configured to generate 3D image display position information using the absolute value, and to receive the left and right 2D images from the difference map generator; a light modulator controller that partially activates the light modulator in response to the 3D image display position information provided from the image processor, so as to activate an activated area of the light modulator for display of an image according to the 3D image display position information; an image generator configured to generate an interlaced image using the left and right 2D images and based on the 3D image display position information provided from the image processor; and an image display device configured to display an image including the interlaced image and a 2D image, wherein the activated area of the light modulator corresponds only to a spatial area of the displayed interlaced image and not to a spatial area of the 2D image, so that the light modulator modulates light provided from the displayed interlaced image, and does not modulate light provided from the 2D image image.