Display device using at least two types of display periods with different lengths
View Patent ↗According to one embodiment, a display device includes a plurality of display elements arranged in a matrix, a plurality of scanning lines, a plurality of signal lines, and a controller configured to control display by sequentially supplying an image signal and a control signal to the plurality of signal lines and the plurality of scanning lines, respectively, wherein the controller repeats a display period in which the display is controlled and a display blanking period in which the display is paused to display a frame image, and at least two types of display periods with different lengths are used when a frame image is displayed.
1. A display device comprising:
a plurality of display elements arranged in a matrix;
a plurality of scanning lines extending along the display elements which are arranged in a row direction;
a plurality of signal lines extending along the display elements which are arranged in a column direction; and
a controller configured to control display by sequentially supplying an image signal and a control signal to the plurality of signal lines and the plurality of scanning lines, respectively,
wherein the controller repeats a display period in which the display is controlled and a display blanking period in which the display is paused to display a frame image, and at least two types of display periods with different lengths are used when a frame image is displayed, and
lengths of the display periods arranged in time sequential order sequentially increase, or sequentially decrease when a frame image is displayed.
2. The display device of claim 1 , wherein
the display blanking period with one type of length is used by the controller when a frame image is displayed.
3. The display device of claim 2 , wherein
a length of the display period is specified using a number of scanning lines controlled in the display period.
4. The display device of claim 2 , further comprising
a touch detector configured to execute a touch driving operation and a detection operation for detecting an external proximity object in the display blanking period.
5. The display device of claim 4 , wherein
the touch detector is provided in the display device as an in-cell touchsensor.
6. The display device of claim 1 , wherein
data as to how the at least two types of display periods are arranged in time sequential order when a frame image is displayed is transferred from a register, and
the controller controls the display referring to the register.
7. The display device of claim 6 , wherein
a plurality of data items as to how the at least two types of display periods are arranged in time sequential order are provided, and
the controller controls the display using a selected data item concerning the arrangement.
8. The display device of claim 6 , further comprising
a touch detector configured to execute a touch driving operation and a detection operation for detecting an external proximity object in the display blanking period.
9. The display device of claim 8 , wherein
the touch detector is provided in the display device as an in-cell touchsensor.
10. The display device of claim 1 , wherein
the display device is controlled at a frequency selected from a plurality of frequencies, and
lengths of the display period and the display blanking period change depending on the selected frequency.
11. The display device of claim 10 , wherein
the display device selects a higher frequency as a signal-to-noise ratio of a signal is higher.
12. The display device of claim 10 , further comprising
a touch detector configured to execute a touch driving operation and a detection operation for detecting an external proximity object in the display blanking period.
13. The display device of claim 12 , wherein
the touch detector is provided in the display device as an in-cell touchsensor.
14. The display device of claim 1 , further comprising
a touch detector configured to execute a touch driving operation and a detection operation for detecting an external proximity object in the display blanking period.
15. The display device of claim 14 , wherein
the touch detector is provided in the display device as an in-cell touchsensor.