Patent ID: 9594254
Date: 2017-03-14
CPC Classifications: G02B,G02F,H04N

Claim:
1. A parallax barrier device, comprising: a first electrode including a plurality of first sub-electrodes; a second electrode including a plurality of second sub-electrodes arranged intersecting the plurality of first sub-electrodes; a liquid crystal layer disposed between the first electrode and the second electrode, the liquid crystal layer forming respective display windows corresponding to regions formed by the intersections of the first sub-electrodes and the second sub-electrodes; a polarizer disposed on the first electrode or the second electrode on a side away from the liquid crystal layer; and a controller coupled to the first electrode and the second electrode and configured to control voltages on each of the plurality of first sub-electrodes and each of the plurality of second sub-electrodes to cause the display windows of the liquid crystal layer to have different voltage differences, wherein when no voltage is applied on an i-th second sub-electrode and a j-th first sub-electrode, or when the voltage difference between voltages respectively applied on the i-th second sub-electrode and the j-th first sub-electrode is less than a threshold voltage of liquid crystal molecules within the liquid crystal layer, the liquid crystal molecules within the display window corresponding to the region formed by the intersection of the j-th first sub-electrode and the i-th second sub-electrode are twisted by 90 degrees, where i and j are positive integers, respectively, when the voltage difference between the voltages respectively applied on the i-th second sub-electrode and the j-th first sub-electrode is greater than the threshold voltage of the liquid crystal molecules within the liquid crystal layer, a long axis of the liquid crystal molecules within the display window corresponding to the region formed by the intersection of the j-th first sub-electrode and the i-th second sub-electrode is rotated to be perpendicular to the first substrate and the second substrate, such that incident linearly polarized light passing through the display windows of a 2D display region for 2D information passes through the polarizer and, meanwhile, some of incident linearly polarized light passing through the display windows of a 3D display region for 3D information passes through the polarizer and some other incident polarized light passing through the display windows of the 3D display region for the 3D information does not pass through the polarizer, displaying a pattern of transparent and opaque display windows to form a parallax barrier, and enabling users to simultaneously view content containing both 2D information and 3D information.