Patent ID: 9143771
Filing Date: 2015-09-22
Classification: H04N

Abstract:
1. A method for operating an image display device including a shutter glass and a display including a plurality of backlight lamps arranged on upper and lower sides of a rear surface of a display panel, the method comprising: receiving a 3-Dimensional (3D) image; increasing a frame rate of the 3D image; alternately aligning a left-eye image and a right-eye image of the 3D image; and alternately displaying the aligned left-eye image and right-eye image, wherein, in the aligning of the left-eye image and the right-eye image, left-eye image frames and right-eye image frames are consecutively arranged, wherein, in the displaying of the aligned left-eye image and right-eye image, using a first boundary between the consecutive left-eye image frames and a second boundary between the consecutive right-eye image frames as a reference, the backlight lamps arranged on the lower side of the display panel are turned on during a first period before the first boundary while the backlight lamps arranged on the upper side of the display panel are off, and the backlight lamps arranged on the upper side of the display panel are turned on during a second period after the first boundary while the backlight lamps arranged on the lower side of the display panel are off, wherein a left glass of the shutter glass opens on during the first period and the second period, wherein a level of current flowing in the backlight lamps arranged on the upper side of the display panel is greater than a level of instantaneous current flowing in the backlight lamps arranged on the lower side of the display panel, wherein an on-period of the backlight lamps arranged on the lower side of the display panel and an on-period of the backlight lamps arranged on the upper side of the display panel are spaced apart from each other, and wherein an on period of the backlight lamps arranged on the upper side of the display panel and an on period of the backlight lamps arranged on the lower side of the display panel are changed such that brightness of the 3D image is adjusted.