Patent ID: 9495917
Filing Date: 2016-11-15
CPC Classification: G09G

Claim Text:
1. A method of controlling a display device that has a display unit including a plurality of scanning lines, a plurality of data lines, and a plurality of pixels in which a write operation for changing a display state of the plurality of pixels from a first display state to a second display state is performed by performing a plurality of operations of applying a driving voltage, the method comprising: determining whether or not a new write operation is required for each of the plurality of pixels; determining whether or not a previous write operation is still being currently performed wherein a driving voltage is presently being applied to change the display state from a gray level to another gray level for each of the plurality of pixels in a case where the new write operation is determined to be required; starting the new write operation for a first pixel of the plurality of pixels which are determined as having completed the previous write operation, while simultaneously continuing the previous write operation that is currently being performed for a second pixel of the plurality of pixels which are determined as still performing the previous write operation until it is completed, and starting the new write operation for the second pixel after completion of the previous write operation; storing display image data to be displayed on the display unit based on the input display image data in a first storage area; and storing data of a target image to be displayed on the display unit by the write operation that is currently performed in a second storage area, wherein, in the storing of data of a target image, pixel data of one pixel of the plurality of pixels is replaced with pixel data corresponding to data of the display image at a timing when the new write operation is started for the one pixel, and wherein, in the determining of whether a new write operation is required, the new write operation is determined to be required for the one pixel in a case where the pixel data of the display image that is stored in the first storage area and the pixel data of the target image that is stored in the second storage area are different from each other.