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AssigneeCanon Kabushiki Kaisha
InventorsYukihiko Sakashita, Akihiro Ouchi, Ryosuke Mizuno
Estimating the term…
A liquid-crystal display apparatus comprising, a liquid-crystal display device driven by an AC voltage, an image divider configured to temporally divide input image data into N (N≧2) for each frame, a correction unit configured to correct a driving voltage for driving the liquid-crystal display device based on a difference between adjacent divided image data obtained by the N division, a polarity inverter configured to invert a polarity to make drive polarities of adjacent divided image data different, out of the divided image data obtained by the N division including the divided image data for which driving voltage is corrected by the correction unit, a driver configured to drive the liquid-crystal display device using the polarity-inverted divided image data, and an inversion order alteration unit which alters an inversion order for the drive polarities.
A liquid-crystal display apparatus comprising:
A control method of a liquid-crystal display apparatus, comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
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About 3 years 8 months of term left · ends 22 Jun 2030 (estimated)
1. Field of the Invention
The present invention relates to a liquid-crystal display apparatus, control method thereof, and computer program.
2. Description of the Related Art
FIG. 1 is a side view showing an example of a rear projection display apparatus 200 according to the first embodiment of the present invention;
FIG. 2 is a sectional view showing a structure of a projection display engine D1 according to the first embodiment of the present invention;
FIG. 3 is a block diagram showing the arrangement of the display engine of the display apparatus according to the first embodiment of the present invention;
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments do not limit the claims of the present invention, and not all combinations of features set forth in the embodiments are essential in solving means of the present invention.
FIG. 1 is a side view showing an example of a rear projection display apparatus 200 according to the first embodiment of the present invention.
In FIG. 1, an image projected from a projection display engine D1 is reflected by a reflecting mirror 201, and projected from the rear surface of a screen 6. A digitizer 202 is attached to the front surface of the screen 6. The user can indicate a position with a digitizer pen 203 on the front surface of the screen 6 equipped with the digitizer 202, and input the coordinates of the indicated position to the display apparatus 200. As the digitizer, various types are available including an optical type, pressure sensitive type, and ultrasonic type. A brightness adjustment switch 204 is used to adjust the brightness of an image displayed on the screen 6.