Patent ID: 8552925
Filing Date: 2013-10-08
Classification: G02B,G09G,H04N

Abstract:
1. A drive method for a stereoscopic image display apparatus, the stereoscopic image display apparatus including: a display device; and a cell provided in front of the display device, the cell including a first electrode substrate having a plurality of first electrodes arranged in parallel thereon, a second electrode substrate having a plurality of second electrodes arranged to be opposed to the plurality of first electrodes thereon, and a liquid crystal layer sandwiched between the first electrode substrate and the second electrode substrate, wherein a polarization direction of light rays from the display device is made variable according to a voltage applied between the first and second electrode substrates, the stereoscopic image display apparatus being capable of changing over between a three-dimensional image and a two-dimensional image and displaying the image, when displaying a background with one of a three-dimensional image and a two-dimensional image and displaying a three-dimensional image or a two-dimensional image different from the image on the background with p windows (where p≧1), the drive method comprising: setting a first flag bit which indicates whether each of the windows overlaps the first electrodes, and setting a second flag bit which indicates whether each of the windows overlaps the second electrodes; dividing one frame period into as many sections as to correspond to the p windows as first and second pulses to be applied respectively to the first and second electrodes, preparing waveforms of 2 selecting an electrode pair formed of one first electrode and one second electrode respectively from the plurality of first electrodes and the plurality of second electrodes; and applying the first and second pulses associated with the electrode pair, to the electrode pair.