Control device, display device, control method, and storage medium
AssigneeSharp Kabushiki Kaisha
InventorYuichi Sato
Life of this patent
Estimating the term…
Abstract
Electric power that a display device consumes in reversal of polarity is reduced. A display control section (3) includes: a refresh rate detecting section (31) which detects a refresh rate of a display device (100 or 200); and a polarity reversal control section (32 or 33) which controls reversal of polarity so as to be carried out at a frequency lower than the refresh rate.
Claims7
A control device capable of controlling a frequency of reversal of polarity of a data signal, which is to be written in each pixel of a display device, so as to be changed, comprising:
- a detecting section which detects a refresh rate of a display screen of the display device;
- and
- a polarity reversal control section which controls the reversal of the polarity so as to be carried out at a frequency lower than the refresh rate which the detecting section has detected,
- wherein:
- the display device is configured such that the refresh rate of the display screen is capable of being changed;
- and
- in a case where the refresh rate, which the detecting section has detected, is equal to or higher than a given frequency, the polarity reversal control section controls the reversal of the polarity so as to be carried out at a frequency lower than the refresh rate.
A control device capable of controlling a frequency of reversal of polarity of a data signal, which is to be written in each pixel of a display device, so as to be changed, comprising:
- a detecting section which detects a refresh rate of a display screen of the display device;
- a polarity reversal control section which controls the reversal of the polarity so as to be carried out at a frequency lower than the refresh rate which the detecting section has detected;
- and
- an image change determining section which determines whether or not an image which the display device is to display is changed from an image which the display device displayed in a last frame,
- in a case where the image change determining section determines that the image which the display device is to display is not changed from the image which the display device displayed in the last frame, the polarity reversal control section controlling the reversal of the polarity so as to be carried out at a frequency lower than the refresh rate.
A control device capable of controlling a frequency of reversal of polarity of a data signal, which is to be written in each pixel of a display device, so as to be changed, comprising:
- a detecting section which detects a refresh rate of a display screen of the display device;
- a polarity reversal control section which controls the reversal of the polarity so as to be carried out at a frequency lower than the refresh rate which the detecting section has detected;
- and
- a flicker determining section which determines whether or not an image which the display device is to display has a characteristic that flicker is likely to be visually recognized,
- in a case where the flicker determining section determines that the image which the display device is to display does not have the characteristic that the flicker is likely to be visually recognized, the polarity reversal control section controlling the reversal of the polarity so as to be carried out at a frequency lower than the refresh rate.
A control method carried out by a control device capable of controlling a frequency of reversal of polarity of a data signal, which is to be written in each pixel of a display device, so as to be changed, the method comprising:
- a detecting step of detecting a refresh rate of a display screen of the display device;
- and
- a polarity reversal controlling step of controlling the reversal of the polarity so as to be carried out at a frequency lower than the refresh rate detected in the detecting step;
- wherein:
- the display device is configured such that the refresh rate of the display screen is capable of being change;
- and
- in a case where the refresh rate, which the detecting step has detected, is equal to or higher than a given frequency, the polarity reversal controlling step controls the reversal of the polarity so as to be carried out at a frequency lower than the refresh rate.
Dependencies are inferred from the claim text.