Patent ID: 8988510
Filing Date: 2015-03-24
Classification: G02B,G09G,H04N

Abstract:
1. A three-dimensional (3D) image display device comprising: a liquid crystal display panel configured to alternately display a left eye image and a right eye image every unit frame period, the liquid crystal display panel being divided into first and second display surfaces; a first data driving circuit configured to drive first data lines of the first display surface; a second data driving circuit configured to drive second data lines of the second display surface; a gate driving circuit configured to sequentially supply a gate pulse for scanning the first display surface to first gate lines of the first display surface and sequentially supply a gate pulse for scanning the second display surface to second gate lines of the second display surface, wherein a scanning operation of the first display surface and a scanning operation of the second display surface are simultaneously performed; a timing controller configured to divide the unit frame period into first and second sub-frame periods, supply same frame data at least two times to each of the first and second data driving circuits during the unit frame period such that the same frame data is again supplied during the second sub-frame period of the unit frame period after the same frame data is supplied during the first sub-frame period of the unit frame period, and control operations of the first and second data driving circuits and the gate driving circuit using a frame frequency higher than an input frame frequency; backlight light sources configured to generate light to be provided to the liquid crystal display panel; and a light source driving circuit configured to simultaneously turn off all the backlight light sources for both the first and second display surfaces during the first sub-frame period and simultaneously turn on all the backlight light sources for both the first and second display surfaces during a second half period of the second sub-frame period for less than the second sub-frame period and after liquid crystals in a middle portion of the first display surface along a vertical direction or liquid crystals in a middle portion of the second display surface along the vertical direction are kept in a saturation state, wherein a turning-on time of the backlight light sources within the second sub-frame period is determined based on one of a saturated time of liquid crystals in the middle portion of the first display surface and a saturated time of the liquid crystals in the middle portion of the second display surface, wherein the same frame data is at least two times supplied to the liquid crystal display panel during the unit frame period such that the same frame data is again supplied to the liquid crystal display panel during the second sub-frame period of the unit frame period after the same frame data is supplied to the liquid crystal display panel during the first sub-frame period of the unit frame period.