Display apparatus and optical information detection method
OwnerTsuneo Miyamotoinventor
Life of this patent
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Abstract
With this display apparatus, it is possible to switch between a mode wherein a movable shield plate closes a hole formed in a reflecting plate that reflects light from backlights which provide light from behind a liquid crystal panel that displays an image, and a mode wherein the hole is open. A color sensor arranged behind the reflecting plate detects information pertaining to the light from the backlights that has passed through the hole formed in the reflecting plate. Thus, it is possible to detect information pertaining to the light from the backlights from behind the reflecting plate with high precision, and to improve the appearance viewed from the display-surface side of the apparatus.
Claims7
A display apparatus comprising:
- a display unit that displays an image;
- a backlight that illuminates the display unit from a back-face side thereof;
- a reflecting plate that is provided on the back-face side of the display unit and reflects light from the backlight, where a hole is formed through the reflecting plate;
- a shield plate which is switchable between a shielding mode that closes the hole formed through the reflecting plate and an open mode that opens the hole;
- and
- an optical information detecting device that is provided on a back-face side of the reflecting plate, and that detects information pertaining to the light from the backlight, which has passed through the hole formed through the reflecting plate.
An optical information detection method comprising:
- switching between a shielding mode that closes a hole formed through a reflecting plate and an open mode that opens the hole, where the reflecting plate reflects light from a backlight that illuminates a display unit, which displays an image, from a back-face side of the display unit;
- and
- detecting, by an optical information detecting device provided on a back-face side of the reflecting plate, information pertaining to the light from the backlight, which has passed through the hole formed through the reflecting plate.
Dependencies are inferred from the claim text.