Adjustable viewing angle display device and method for driving the same

A method for driving an adjustable viewing angle display device, comprising:

• providing a display device, comprising:
• a first substrate;
• a second substrate disposed opposite to the first substrate;
• a non-self-luminous display medium layer interposed between the first substrate and the second substrate to form a display panel;
• a pixel array defined in the display panel, wherein the pixel array at least has one first pixel zone and one second pixel zone, and each of the first and the second pixel zones at least has one first sub-pixel and one second sub-pixel;
• a first electrode disposed on the first substrate in all of the sub-pixels in the first and second pixel zones;
• a second electrode disposed on the first substrate in all of the sub-pixels in the first and second pixel zones, wherein the first electrode disposed in all of the sub-pixels in the first pixel zones is spaced apart from the second electrode disposed in all of the sub-pixels in the first pixel zones and the first electrode disposed in the all of the sub-pixels in the second pixel zone is spaced apart from the second electrode disposed in all of the sub-pixels in the second pixel zone;
• and
• a third electrode disposed on the second substrate in all of the sub-pixels in the first and second pixel zones;
• and
• respectively applying a first potential, a second potential, and a third potential to the first electrode, the second electrode and the third electrode in all of the sub-pixels in the first second pixel zones, wherein
• when the display device is operated in a narrow viewing angle mode, a potential difference between the second and the third electrodes disposed in all of the sub-pixels in the first and second pixel zones is not equal to zero;
• and a potential difference between the first electrode and the second electrode disposed in the first and second pixel zones is not equal to zero when all of the sub-pixels are at a gray level of zero.