US 11,960,672 B2
Display device with specific number of pulses of a drive signal applied during a detection
Koji Noguchi, Kanagawa (JP); Yoshitoshi Kida, Kanagawa (JP); and Kohei Azumi, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Dec. 9, 2022, as Appl. No. 18/078,410.
Application 18/078,410 is a continuation of application No. 17/322,059, filed on May 17, 2021, granted, now 11,526,224.
Application 17/322,059 is a continuation of application No. 16/563,405, filed on Sep. 6, 2019, granted, now 11,009,984, issued on May 18, 2021.
Application 16/563,405 is a continuation of application No. 15/928,544, filed on Mar. 22, 2018, granted, now 10,409,409, issued on Sep. 10, 2019.
Application 15/928,544 is a continuation of application No. 15/412,594, filed on Jan. 23, 2017, granted, now 9,946,387, issued on Apr. 17, 2018.
Application 15/412,594 is a continuation of application No. 14/824,829, filed on Aug. 12, 2015, granted, now 9,588,631, issued on Mar. 7, 2017.
Application 14/824,829 is a continuation of application No. 13/645,179, filed on Oct. 4, 2012, granted, now 9,141,222, issued on Sep. 22, 2015.
Claims priority of application No. 2011224536 (JP), filed on Oct. 12, 2011.
Prior Publication US 2023/0116343 A1, Apr. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); G06F 3/047 (2006.01); G09G 3/36 (2006.01); G09G 5/00 (2006.01); G09G 5/18 (2006.01)
CPC G06F 3/0412 (2013.01) [G06F 3/04166 (2019.05); G06F 3/0418 (2013.01); G06F 3/04184 (2019.05); G06F 3/0445 (2019.05); G06F 3/0446 (2019.05); G06F 3/047 (2013.01); G09G 3/36 (2013.01); G09G 3/3677 (2013.01); G09G 5/003 (2013.01); G09G 5/18 (2013.01); G09G 3/3685 (2013.01); G09G 2300/0426 (2013.01); G09G 2310/0202 (2013.01); G09G 2310/0297 (2013.01); G09G 2310/08 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A display device comprising:
a signal line;
a pixel electrode;
a drive electrode opposed to the pixel electrode;
scanning lines; and
display periods and a detection period in one of unit drive periods, the unit drive periods forming a frame period, and the detection period not overlapping the display periods in the one of unit drive periods,
wherein during one of the display periods,
a display operation with respect to a horizontal line of an image is performed,
touch detections are not performed,
a common voltage is applied to the drive electrode,
a scanning signal is applied to one of the scanning lines and is not applied to a rest of the scanning lines, the one of the scanning lines being used for the display operation with respect to the horizontal line of the image,
a pixel signal is applied to the pixel electrode,
wherein, during the detection period,
the touch detections are performed and the display operation with respect to the horizontal one of the image is not performed,
an AC drive signal or a pulse drive signal is applied to the drive electrode, the AC drive signal or the pulse drive signal having pulses,
wherein during the display periods,
a scanning signal is applied to some of the scanning lines sequentially, the some of the scanning lines include the one of the scanning lines, and
wherein a number of the pulses during the detection period is less than a number of the some of the scanning lines.