Display device
A display device includes: a display panel; a light source configured to emit light toward one surface side of the display panel; a liquid crystal panel interposed between the display panel and the light source and provided to be able to change a transmission degree of light between the display panel and the light source; and a controller configured to control a potential difference between two electrodes facing each other with liquid crystal interposed therebetween. The liquid crystal panel in operation is makes a transmission degree of light tilted toward one side in a longitudinal direction of the display panel in a rectangular shape and a transmission degree of light tilted toward the other side in the longitudinal direction to be different from each other. The potential difference corresponds to an angle of tilt with a smaller transmission degree of light when the liquid crystal panel is in operation.
1. A display device comprising:
a display panel having a display region configured to output an image;
a light source configured to emit light toward one surface side of the display panel;
a liquid crystal panel interposed between the display panel and the light source and provided to be able to change a transmission degree of light between the display panel and the light source; and
a controller configured to control a potential difference between two electrodes facing each other with liquid crystal interposed between the electrodes in the liquid crystal panel, wherein
the liquid crystal panel in operation makes a transmission degree of light tilted toward one side in a longitudinal direction of the display panel in a rectangular shape with respect to a direction in which the display panel and the light source face each other and a transmission degree of light tilted toward the other side in the longitudinal direction to be different from each other, and
the potential difference corresponds to an angle of tilt with a smaller transmission degree of light when the liquid crystal panel is in operation,
two of the liquid crystal panels are provided, and
one of the two liquid crystal panels is provided as an E-mode liquid crystal panel, and the other is provided as an O-mode liquid crystal panel.
2. The display device according to claim 1 , wherein
an angle of tilt with a lowest transmission degree of light when the liquid crystal panel is in operation is included in either the one side or the other side, and
the angle of tilt with the lowest transmission degree of light is smaller as the potential difference is larger.
3. The display device according to claim 1 , wherein the potential difference corresponds to a view angle at which it is assumed to be difficult or impossible to view the image when the liquid crystal panel is in operation and a view angle range in which it is possible to view the image when the liquid crystal panel is not in operation.
4. The display device according to claim 3 , further comprising an image capturing device having an image capturing range including the view angle range, wherein
the controller is configured to determine, based on an image captured by the image capturing device, the view angle at which it is assumed to be difficult or impossible to view the image when the liquid crystal panel is in operation.