公开(公告)号：US20160283029A1

公开(公告)日：2016-09-29

申请号：US15078992

申请日：2016-03-23

Applicant: Japan Display Inc.

Inventor： Hitoshi Hiratsuka ,  Koji Shigehiro

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0418 ,  G06F3/044

Abstract: According to one embodiment, a pixel signal from a memory is supplied to an arbitrary pixel. A controller selectively switches a scanning frequency of common electrodes including a touch detection system, between a higher frequency and a lower frequency, and allocates banks in the memory, each bank having a capacity of a fixed number of items of the pixel data. The controller defines one unit including a group of lines of the pixel data, sets a line number of the one unit to the fixed number when the scanning frequency is the higher frequency, and sets the line number of the one unit to another line number which is greater than the fixed number when the scanning frequency is the lower frequency.

Abstract translation: 根据一个实施例，来自存储器的像素信号被提供给任意像素。 控制器选择性地切换包括触摸检测系统在内的较高频率和较低频率之间的公共电极的扫描频率，并且在存储器中分配存储体，每个存储体具有像素数据的固定数量的容量。 控制器定义包括一组像素数据的一个单元，当扫描频率为较高频率时，将一个单位的行号设置为固定数，并将一个单位的行号设置为另一个行号 当扫描频率为较低频率时大于固定数。

公开(公告)号：US10013103B2

公开(公告)日：2018-07-03

申请号：US15078992

申请日：2016-03-23

Applicant: Japan Display Inc.

Inventor： Hitoshi Hiratsuka ,  Koji Shigehiro

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0418 ,  G06F3/044

Abstract: According to one embodiment, a pixel signal from a memory is supplied to an arbitrary pixel. A controller selectively switches a scanning frequency of common electrodes including a touch detection system, between a higher frequency and a lower frequency, and allocates banks in the memory, each bank having a capacity of a fixed number of items of the pixel data. The controller defines one unit including a group of lines of the pixel data, sets a line number of the one unit to the fixed number when the scanning frequency is the higher frequency, and sets the line number of the one unit to another line number which is greater than the fixed number when the scanning frequency is the lower frequency.

公开(公告)号：US10203800B2

公开(公告)日：2019-02-12

申请号：US15290922

申请日：2016-10-11

Applicant: Japan Display Inc.

Inventor： Koji Shigehiro

IPC: G06F3/041 ,  G06F3/044

Abstract: According to an aspect, a display device with a touch detection function includes: a display unit; a detecting unit; and a control unit that controls an operation timing of the display unit and the detecting unit. The control unit performs display processing and touch detection processing alternately a plurality of times in a display period of an image of one frame, the display processing being processing of performing control on the electric charge, the touch detection processing being processing of performing the touch detection. The control unit varies a length of a first period, a length of a second period, or both in display periods of images of two frames that are displayed consecutively, the first period being a period in which the display processing is performed once, the second period being a period in which the touch detection processing is performed once.

公开(公告)号：US20170108982A1

公开(公告)日：2017-04-20

申请号：US15290922

申请日：2016-10-11

Applicant: Japan Display Inc.

Inventor： Koji Shigehiro

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04108

Abstract: According to an aspect, a display device with a touch detection function includes: a display unit; a detecting unit; and a control unit that controls an operation timing of the display unit and the detecting unit. The control unit performs display processing and touch detection processing alternately a plurality of times in a display period of an image of one frame, the display processing being processing of performing control on the electric charge, the touch detection processing being processing of performing the touch detection. The control unit varies a length of a first period, a length of a second period, or both in display periods of images of two frames that are displayed consecutively, the first period being a period in which the display processing is performed once, the second period being a period in which the touch detection processing is performed once.

公开(公告)号：US10162457B2

公开(公告)日：2018-12-25

申请号：US15200179

申请日：2016-07-01

Applicant: Japan Display Inc.

Inventor： Daisuke Ito ,  Koji Shigehiro ,  Nobuhiko Yokoo

IPC: G06F3/041 ,  G06F3/044 ,  G06F1/32 ,  G02F1/1333

Abstract: A display device with a touch detection function includes a substrate, pixel electrodes arranged in a matrix in a display region on a plane parallel to the substrate, a display function layer having a function to display the image in the display region, drive electrodes provided facing the pixel electrodes, touch detection electrodes that form electrostatic capacitance between there and the drive electrodes, a control unit that generates a control signal to switch between a display operation period for applying a display signal between the pixel and drive electrodes and a display stop period for stopping the display operation. The control unit generates first and second control signals respectively having a first frequency and a second frequency that is different from the first frequency, and has first and second operation modes respectively including a period controlled by the first control signal and a period controlled by the second control signal.