公开(公告)号：US10216324B2

公开(公告)日：2019-02-26

申请号：US15692727

申请日：2017-08-31

Applicant: Japan Display Inc.

Inventor： Kohei Azumi ,  Hidetoshi Komatsu ,  Jin Ota ,  Hiroshi Mizuhashi ,  Makoto Hayashi

IPC: G09G3/36 ,  G06F3/041 ,  G06F3/044 ,  G11C19/28

Abstract: According to one embodiment, the touch drive device includes a plurality of drive electrodes arranged side by side to extend in a single direction, a detection electrode which extends in a direction crossing the direction in which the drive electrodes extend, and generates capacitances at intersections of the detection electrode and the drive electrodes, and a driver (DDI) which groups the drive electrodes into a plurality of drive electrode portions each including at least one drive electrode, and performs a touch scanning drive by supplying a touch drive signal (TSVCOM) having a pulse waveform for detection of a closely situated external object to a target drive electrode portion which is a selected one of the drive electrode portions. The number of the drive electrodes included in each of the drive electrode portions and the target drive electrode portion to which the touch drive signal (TSVCOM) is supplied can be designated.

公开(公告)号：US20180095576A1

公开(公告)日：2018-04-05

申请号：US15725201

申请日：2017-10-04

Applicant: Japan Display Inc.

Inventor： Nobuhiko Yokoo ,  Jin Ota ,  Hidetoshi Komatsu

IPC: G06F3/041 ,  G09G3/36 ,  G02F1/1333 ,  G06F3/044 ,  G02F1/1343

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G02F1/134309 ,  G02F2001/134372 ,  G02F2201/121 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04112 ,  G09G3/2092 ,  G09G3/3614 ,  G09G3/3648 ,  G09G3/3655 ,  G09G2300/0426 ,  G09G2310/08 ,  G09G2340/0435

Abstract: According to one embodiment, a display device driven in a first drive mode for displaying images of a frame in a first frame period and a second drive mode for displaying images of a frame in a second frame period longer than the first frame period is provided. The display device includes a display panel configured to perform display operation for displaying an image based on a pixel signal and a driver configured to switch a drive mode between the first drive mode and the second drive mode. When a switch signal is received while the display device is driven in the second drive mode, the driver is configured to shorten the second frame period and switch the second drive mode to the first drive mode.

公开(公告)号：US20180095575A1

公开(公告)日：2018-04-05

申请号：US15724623

申请日：2017-10-04

Applicant: Japan Display Inc.

Inventor： Jin Ota ,  Hidetoshi Komatsu ,  Tsutomu Takabayashi

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04112 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2310/08 ,  G09G2354/00

Abstract: According to one embodiment, a display device includes a display panel configured to perform display operation based on a pixel signal in a display period, a detector configured to perform touch detection operation in touch detection periods, and a driver configured to control frame operations. The driver is configured to control a first frame operation in a first frame periods including the display period, a first touch detection period and a first display adjustment period, and control a second frame operation in a second frame periods including the display period, a first touch detection period and a second display adjustment period. The second display adjustment period is longer than the first display adjustment period and includes the second touch detection period.

公开(公告)号：US09785277B2

公开(公告)日：2017-10-10

申请号：US14674026

申请日：2015-03-31

Applicant: Japan Display Inc.

Inventor： Kohei Azumi ,  Hidetoshi Komatsu ,  Jin Ota ,  Hiroshi Mizuhashi ,  Makoto Hayashi

IPC: G06F3/045 ,  G06F3/041 ,  G06F3/044 ,  G09G3/36 ,  G11C19/28

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G09G3/3648 ,  G09G3/3655 ,  G09G2310/0286 ,  G11C19/28

Abstract: According to one embodiment, the touch drive device includes a plurality of drive electrodes arranged side by side to extend in a single direction, a detection electrode which extends in a direction crossing the direction in which the drive electrodes extend, and generates capacitances at intersections of the detection electrode and the drive electrodes, and a driver (DDI) which groups the drive electrodes into a plurality of drive electrode portions each including at least one drive electrode, and performs a touch scanning drive by supplying a touch drive signal (TSVCOM) having a pulse waveform for detection of a closely situated external object to a target drive electrode portion which is a selected one of the drive electrode portions. The number of the drive electrodes included in each of the drive electrode portions and the target drive electrode portion to which the touch drive signal (TSVCOM) is supplied can be designated.

公开(公告)号：US20160364046A1

公开(公告)日：2016-12-15

申请号：US15138497

申请日：2016-04-26

Applicant: Japan Display Inc.

Inventor： Takashi Yoshii ,  Jin Ota

IPC: G06F3/044 ,  G09G3/36 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G09G3/36 ,  G09G3/3648 ,  G09G2330/028 ,  G09G2354/00

Abstract: According to one embodiment, a display device includes a display panel, switching elements, a power supply, a controller and a noise suppression circuit. The display panel displays an image. The switching elements supply a pixel signal to the display panel. The power supply supplies a power source voltage to the switching elements. The controller switches between a display period during which the display panel displays an image and a non-display period during which the display panel does not display an image. The noise suppression circuit preliminarily reduces a potential difference between the switching elements and the power supply when the controller switches between the display period and the non-display period.

Abstract translation: 根据一个实施例，显示装置包括显示面板，开关元件，电源，控制器和噪声抑制电路。 显示面板显示图像。 开关元件向显示面板提供像素信号。 电源为开关元件提供电源电压。 控制器在显示面板显示图像的显示周期和显示面板不显示图像的非显示时段之间切换。 当控制器在显示周期和非显示周期之间切换时，噪声抑制电路预先减小开关元件和电源之间的电位差。