Patent ID: 9343023
Filing Date: 2016-05-17
CPC Classification: G09G,H04N

Claim Text:
1. A method for driving a stereoscopic display, the stereoscopic display comprising a barrier cell, the barrier cell comprising a plurality of barrier pitches disposed in parallel, and each of the barrier pitches comprising a plurality of switchable barrier units, the method comprising: generating a sensing signal by utilizing a sensor to detect a user; calculating a visual angle of the user by utilizing a control unit to process the sensing signal; and adjusting the switchable barrier units to make at least one of the switchable barrier units of each of the barrier pitches form a shading zone, to make the switchable barrier units disposed at two adjacent sides of the shading zone form a gray level zone, and to make the rest of the switchable barrier units in the same barrier pitch form a photic zone; wherein each of the switchable barrier units comprises a control electrode and a common electrode, the common electrodes of the switchable barrier units are at a same electrical potential, and the control electrodes of the switchable barrier units of each of the barrier pitches are electrically coupled to each other, the step of adjusting the switchable barrier units comprising: providing a common control signal to the common electrodes and the control electrodes of the switchable barrier units corresponding to the photic zone, so as to form the photic zone; providing a first control signal and a second control signal to the control electrodes of the switchable barrier units of the two adjacent sides of the shading zone, respectively, so as to form the gray level zone; and providing a third control signal to the control electrodes of the switchable barrier units corresponding to the shading zone, wherein the common control signal is complementary to the third control signal, an enabling period of the first control signal at least partly overlaps the enabling period of the common control signal, and the enabling period of the second control signal at least partly overlaps the enabling period of the common control signal; wherein the frequency of the common control signal is different to the frequency of the first control signal and the frequency of the second control signal.