Patent ID: 8421814
Filing Date: 2013-04-16
Classification: G09G

Abstract:
1. A display device, comprising: a storage element; a selection circuit configured to select an image stored in the storage element according to a user request; a first detection circuit configured to estimate power consumption for displaying the selected image; a second detection circuit configured to detect a remaining capacity of a battery; a comparison circuit configured to compare outputs of the first and second detection circuits and to provide a comparison output in accordance with the compared outputs of the first and second circuits, the comparison output indicating whether the remaining capacity of the battery is equal to or higher than the estimated power consumption; a brightness setting circuit configured to output red, green and blue conversion signals to set a brightness of the selected image according to the comparison output of the comparison circuit, wherein the brightness setting circuit is configured to generate a first setting signal by utilizing a ratio of the estimated power consumption and the remaining capacity of the battery; a control circuit configured to change a brightness of an image signal of the selected image when the comparison output indicates that the estimated power consumption is higher than the remaining capacity of the battery, in accordance with the red, green and blue conversion signals and to provide a control output; and a display panel configured to display the selected image in accordance with the control output of the control circuit.