Driving method of display device and display device
According to one embodiment, a driving method of a display device including a display area in which liquid crystal pixels are arranged in a matrix, a plurality of scanning lines arranged along display rows, a plurality of signal lines arranged along display columns, a backlight which illuminates the display area, and a controller which controls a display operation, the driving method includes via the controller, driving the scanning lines alternately from a center of the display area to both edges of the display area, outputting video data corresponding to a driven scanning line to the signal lines in synchronization with the driving of the scanning line, and turning on the backlight for a predetermined time after outputting the video data of one frame.
1. A driving method of a display device comprising a display area in which liquid crystal pixels are arranged in a matrix, a single gate driver which drives a plurality of scanning lines arranged along display rows in which the liquid crystal pixels are arranged, a single source driver which drives a plurality of signal lines arranged along display columns in which the liquid crystal pixels are arranged, a backlight which illuminates the display area, and a controller which controls a display operation, the driving method comprising:
via the controller,
controlling the source driver, the gate driver, and the backlight;
receiving video signals by display row directly from an external system which generates a synchronization signal and a video signal;
converting the video signals of the display row to video data;
driving the scanning lines alternately from a center of the display area to both edges of the display area by controlling the single gate driver;
outputting the video data to the signal lines in an order received from the external system by controlling the single source driver in synchronization with the driving of the scanning line; and
turning on the backlight for a predetermined time after transition of liquid crystals of a center area of the display area ends and before transition of liquid crystals of each of a first edge area and a second edge area of the display area ends, after outputting the video data of one frame to the signal lines, and turning off the backlight before outputting the video data of a next frame to the signal lines.
2. The driving method according to claim 1 , wherein the video data is for VR.
3. A display device comprising:
a display area in which liquid crystal pixels are arranged in a matrix;
a single gate driver which drives a plurality of scanning lines arranged along display rows in which the liquid crystal pixels are arranged;
a single source driver which outputs video data to a plurality of signal lines arranged along display columns in which the liquid crystal pixels are arranged;
a backlight which illuminates the display area; and
a controller which controls a display operation, wherein
the controller controls the source driver, the gate driver, and the backlight;
the controller receives video signals by display row directly from an external system which generates a synchronization signal and a video signal,
the controller converts the video signals of the display row to video data,
the controller controls the single gate driver to alternately drive the scanning lines from a center of the display area to both edges of the display area,
the controller controls the single source driver to output the video data to the signal lines in an order received from the external system in synchronization with the driving of the scanning lines, and
the controller turns on the backlight for a predetermined time after transition of liquid crystals of a center area of the display area ends and before transition of liquid crystals of each of a first edge area and a second edge area of the display area ends, after outputting the video data of one frame to the signal lines, and turns off the backlight before outputting the video data of a next frame to the signal lines.