Liquid crystal display apparatus having adjustable viewing angle characteristics
AssigneeSharp Kabushiki Kaisha
InventorsMasayuki Okamoto, Nobuaki Yamada, Shuichi Kozaki, Yoshito Hashimoto, Shigeaki Mizushima
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Abstract
A liquid crystal display apparatus includes: a liquid crystal display device; an illumination device for irradiating the liquid crystal display device with collimated light; and a control device for electrically controlling a direction of travel of light going out from or entering the liquid crystal display device, thereby having adjustable viewing angle characteristics.
Claims18
A liquid crystal display apparatus comprising:
- a liquid crystal display device;
- an illumination device for irradiating the liquid crystal display device with collimated light;
- and
- a control device for electrically controlling a direction of travel of light entering the liquid crystal display device, the control device being provided between the liquid crystal display device and the illumination device,
- thereby having adjustable viewing angle characteristics.
A liquid crystal display apparatus comprising:
- a liquid crystal display device;
- an illumination device having a directionality substantially perpendicular with respect to a display screen of the liquid crystal display device;
- and
- a control device for electrically controlling a direction of travel of light, the control device being provided between the liquid crystal display device and the illumination device.
A liquid crystal display apparatus including a liquid crystal display device and an irradiation section for irradiating the liquid crystal display device from behind;
- a transmissive sheet disposed in an optical path between the irradiation section and the liquid crystal display device;
- a plurality of light-shielding members provided on a side of the transmissive sheet so as to be parallel to one another and have a raised profile.
A liquid crystal display apparatus including a liquid crystal display device and an irradiation section for irradiating the liquid crystal display device from behind;
- and
- a transmissive sheet disposed in an optical path between the irradiation sectin and the liquid crystal display device,
- wherein a plurality of grooves having roughly V-shaped cross sections are provided so as be parallel to one another on a side of the transmissive sheet facing the liquid crystal display device, and a plurality of light shielding members are provided on a side of the transmissive sheet opposite the side facing the liquid crystal display device, the light-shielding members extending along the plurality of grooves and in parallel to one another, thereby causing light from the irradiation section to be gathered onto the liquid crystal display device.
Dependencies are inferred from the claim text.