Display system and vehicle

A display system comprising:

• a display panel modulating a first polarization component having a first polarization axis;
• a tracking sensor tracking an eye gaze of a user opposed to the display panel;
• a viewing angle control panel comprising a liquid crystal layer containing liquid crystal molecules twist-aligned, configured such that a drive voltage applied to the liquid crystal layer is controlled based on the eye gaze detected by the tracking sensor, and transmitting a second polarization component having a second polarization axis different form the first polarization axis;
• and
• a polarization axis rotation element disposed between the viewing angle control panel and the display panel, and rotating the second polarization axis of the second polarization component transmitted through the viewing angle control panel, wherein
• the drive voltage when the eye gaze is detected to be in a predetermined direction is greater than the drive voltage when the eye gaze is detected to be in a direction different from the predetermined direction.

A vehicle comprising:

• a front window disposed in a front part of the vehicle;
• a driver seat and a passenger seat;
• a display device disposed in front of the driver seat and the passenger seat;
• and
• an external light sensor detecting an external light intensity, wherein
• the display device comprises:
• a display panel;
• and
• a viewing angle control panel comprising a liquid crystal layer containing liquid crystal molecules twist-aligned, and configured such that a drive voltage applied to the liquid crystal layer is controlled based on the external light intensity detected by the external light sensor, and
• the drive voltage when the external light intensity is less than a threshold value is greater than the drive voltage when the external light intensity is greater than or equal to the threshold value.