Drive control device for a display apparatus, video image display apparatus and method of controlling the driving of the video image display apparatus
AssigneeCanon Kabushiki Kaisha
InventorMakiko Mori
Life of this patent
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Abstract
In a drive control device 30 for controlling the driving of a display apparatus 20 that displays a video image on the basis of an input video image signal S1 (or S2), there is provided brightness control means (33, 21, 7) for controlling a display brightness in the display apparatus 20 in accordance with brightness information S6 corresponding to the mean brightness of the video image, and the brightness control means (33, 21, 7) performs a control operation so that the display brightness of the video image display variably changes a plurality of times within respective one-frame scanning periods of the video image display.
Claims18
A drive control device for controlling the driving of a display apparatus that displays a video image on the basis of an inputted video image signal, said device comprising:
- a mean brightness detecting unit that obtains brightness information corresponding to a mean brightness of the video image of one frame;
- a brightness controller for controlling a display brightness in the display apparatus in accordance with the brightness information obtained from said mean brightness detecting unit,
- wherein said brightness controller conducts control so that the display brightness of the video image intermittently changes by a plurality of number of times within a one-frame scanning period for displaying the video image.
A display apparatus that displays a video image on the basis of an inputted video image signal, said display apparatus comprising:
- a mean brightness detecting unit that obtains brightness information corresponding to a mean brightness of the video image of one frame;
- a control unit that outputs a brightness control value in accordance with the brightness information obtained from said mean brightness detecting unit;
- and
- an adjusting unit that adjusts the display brightness in accordance with the brightness control value output from said control unit,
- wherein said control unit intermittently changes the brightness control value so as to change the display brightness of the video image by a plurality of number of times within a one-frame scanning period for displaying the video image.
A drive control method for controlling the driving of a display apparatus that displays a video image on the basis of an inputted video image signal, the method comprising the steps of:
- obtaining brightness information corresponding to a mean brightness of the video image of one frame;
- and
- controlling a display brightness of the display apparatus in accordance with the brightness information by intermittently changing the display brightness of the video image by a plurality of number of times within a one-frame scanning period for displaying the video image.
Dependencies are inferred from the claim text.