公开(公告)号：US20180217712A1

公开(公告)日：2018-08-02

申请号：US15872480

申请日：2018-01-16

Applicant: Japan Display Inc.

Inventor： Yasuyuki TERANISHI ,  Takafumi SUZUKI ,  Michita KUDO

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04101 ,  G06F2203/04108

Abstract: According to one embodiment, a display device includes first electrodes overlapping a display area, a cover base covering the display area and a frame area, a second electrode arranged in the cover base and overlapping the frame area, a touch detection driver configured to output a drive signal to the second electrode, and a level shifter arranged between the second electrode and the touch detection driver, and configured to increase a signal level of the drive signal and output the drive signal having the increased signal level to the second electrode. The touch detection driver is configured to detect contact or proximity to an object with the frame area based on electrostatic capacitance between the first electrodes and the second electrode.

公开(公告)号：US20170285814A1

公开(公告)日：2017-10-05

申请号：US15469657

申请日：2017-03-27

Applicant: Japan Display Inc.

Inventor： Tadayoshi KATSUTA ,  Koji NOGUCHI ,  Daisuke ITO ,  Yasuyuki TERANISHI

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1343 ,  G02F1/1368 ,  G06F3/044 ,  G09G3/36

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04107 ,  G06F2203/04108 ,  G09G3/3648 ,  G09G2354/00

Abstract: A performance of a display device having an input device is improved. A display device includes: an electro-optical layer; a first driving electrode and a second driving electrode which drives the electro-optical layer; a driver chip which outputs a video signal; a switch circuit which is arranged outside the driver chip, which selects a potential to be supplied to the second driving electrode, and which includes a first switch element and a second switch element; a shift register circuit connected to the switch circuit; and a detection circuit which detects that an object is close or in contact. Each of the first switch element and the second switch element is selectively turned ON or OFF by the shift register circuit. The detection circuit is electrically connected to the first switch element and the second switch element.

公开(公告)号：US20160275891A1

公开(公告)日：2016-09-22

申请号：US15170400

申请日：2016-06-01

Applicant: Japan Display Inc.

Inventor： Yasuyuki TERANISHI

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3648 ,  G06T1/60 ,  G09G3/2018 ,  G09G3/2074 ,  G09G3/3607 ,  G09G3/3614 ,  G09G3/3696 ,  G09G5/18 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0857 ,  G09G2310/0291 ,  G09G2310/06 ,  G09G2320/0204 ,  G09G2320/0247 ,  G09G2330/021

Abstract: A liquid crystal display device is provided. The liquid crystal including an array of pixels each having a memory function; and a buffer to output a first voltage, wherein a second voltage is supplied to a counter electrode of a liquid crystal capacitor, and wherein each of the pixels supplies one of the first voltage and the second voltage to a pixel electrode of the liquid crystal capacitor according to a data value stored in the each of the pixels.

公开(公告)号：US20160041686A1

公开(公告)日：2016-02-11

申请号：US14918851

申请日：2015-10-21

Applicant: Japan Display Inc.

Inventor： Yoshitoshi KIDA ,  Koji NOGUCHI ,  Yasuyuki TERANISHI ,  Hiroshi MIZUHASHI ,  Kohei AZUMI

IPC: G06F3/041 ,  G06F3/044

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

Abstract: According to an aspect, a display device with a touch detection function includes a plurality of drive electrodes that face a plurality of pixel electrodes in an orthogonal direction to the surface of the substrate, and extend in a direction parallel to the direction in which a plurality of signal lines extend. The display device with a touch detection function also includes a scan driving unit that applies a touch drive signal to a signal line that faces, in an overlapping manner in the orthogonal direction, a drive electrode to which the touch drive signal is applied.

公开(公告)号：US20150243255A1

公开(公告)日：2015-08-27

申请号：US14697798

申请日：2015-04-28

Applicant: JAPAN DISPLAY INC.

Inventor： Yasuyuki TERANISHI

IPC: G09G5/18 ,  G06T1/60 ,  G09G3/36

CPC classification number: G09G3/3648 ,  G06T1/60 ,  G09G3/2018 ,  G09G3/2074 ,  G09G3/3607 ,  G09G3/3614 ,  G09G3/3696 ,  G09G5/18 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0857 ,  G09G2310/0291 ,  G09G2310/06 ,  G09G2320/0204 ,  G09G2320/0247 ,  G09G2330/021

Abstract: A liquid crystal display device is provided. The liquid crystal including an array of pixels each having a memory function; and a buffer to output a first voltage, wherein a second voltage is supplied to a counter electrode of a liquid crystal capacitor, and wherein each of the pixels supplies one of the first voltage and the second voltage to a pixel electrode of the liquid crystal capacitor according to a data value stored in the each of the pixels.

Abstract translation: 提供一种液晶显示装置。 该液晶包括各具有记忆功能的像素阵列; 以及缓冲器，用于输出第一电压，其中第二电压被提供给液晶电容器的对电极，并且其中每个像素将第一电压和第二电压中的一个提供给液晶电容器的像素电极 根据存储在每个像素中的数据值。

公开(公告)号：US20140362042A1

公开(公告)日：2014-12-11

申请号：US14298527

申请日：2014-06-06

Applicant: Japan Display Inc.

Inventor： Koji NOGUCHI ,  Hidetoshi KOMATSU ,  Yasuyuki TERANISHI

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/136286 ,  G02F1/1368 ,  G06F1/3231 ,  G06F1/3262 ,  G06F1/3265 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04108 ,  G09G3/3648 ,  G09G3/3674 ,  G09G3/3685 ,  G09G2300/0426 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2330/021 ,  G09G2330/022 ,  G09G2354/00 ,  G09G2370/08 ,  Y02D10/153 ,  Y02D10/173 ,  Y02D50/20

Abstract: A display device with a touch detection function includes a control device that performs, in normal operation mode, image display control so as to exhibit an image display function of a display function layer based on an image signal and performs touch detection control; a touch detecting unit that detects, in the normal operation mode, a position of an object in proximity to or in contact with the touch detection electrode based on a detection signal transmitted from the touch detection electrode; and a touch-detection controller that detects, in sleep mode, the proximity of the object to or the contact thereof with the touch detection electrode. When the touch-detection controller detects the proximity of the object to or the contact thereof with the touch detection electrode in the sleep mode, the control device controls a pixel electrode to a predetermined potential, and thereafter supplies a touch drive signal to a drive electrode.

Abstract translation: 具有触摸检测功能的显示装置包括控制装置，其在正常操作模式下执行图像显示控制，以便基于图像信号呈现显示功能层的图像显示功能并执行触摸检测控制; 触摸检测单元，其基于从所述触摸检测电极发送的检测信号，在所述正常操作模式中检测与所述触摸检测电极接近或接触的对象的位置; 以及触摸检测控制器，其以睡眠模式检测对象与触摸检测电极的接近或与触摸检测电极的接触。 当触摸检测控制器在休眠模式下检测到物体与触摸检测电极的接近度或者与触摸检测电极的接触时，控制装置将像素电极控制到预定电位，然后将触摸驱动信号提供给驱动电极 。

公开(公告)号：US20140327853A1

公开(公告)日：2014-11-06

申请号：US14333713

申请日：2014-07-17

Applicant: Japan Display, Inc.

Inventor： Yasuyuki TERANISHI ,  Yoshiharu NAKAJIMA

IPC: G02F1/1362 ,  G02F1/1365

CPC classification number: G02F1/136213 ,  G02F1/1365 ,  G09G3/3648 ,  G09G2300/0852 ,  G09G2310/08

Abstract: A LCD panel is proposed, which meets analog display mode and memory display mode. The LCD panel includes a capacitive element, first to third switch elements, and a circuit. The first switch element turns ON during a first operation for writing pixel potential from signal line to the capacitive element, and turns OFF during a second operation. The second and third switch elements turn OFF during the first operation. The second switch element turns ON during a readout period in the second operation, to read out the pixel potential from the capacitive element. The third switch element turns ON during a write period in the second operation, to rewrite the pixel potential into the capacitive element. The circuit restores a logic level of the pixel potential read out from the capacitive element, and rewrites inversion of the restored logic level to the capacitive element.

Abstract translation: 提出了一种符合模拟显示模式和存储显示模式的LCD面板。 LCD面板包括电容元件，第一至第三开关元件和电路。 在将像素电位从信号线写入电容元件的第一操作期间，第一开关元件变为ON，并且在第二操作期间关闭。 第一和第三开关元件在第一次操作期间关闭。 在第二操作期间的第二开关元件在读出期间导通，从电容元件读出像素电位。 在第二操作中的写入期间，第三开关元件变为ON，将象素电位改写为电容元件。 电路恢复从电容元件读出的像素电位的逻辑电平，并将恢复的逻辑电平的反相重写为电容元件。

公开(公告)号：US20190361567A1

公开(公告)日：2019-11-28

申请号：US16532072

申请日：2019-08-05

Applicant: Japan Display Inc.

Inventor： Takafumi SUZUKI ,  Shota HOSAKA ,  Koji NOGUCHI ,  Yasuyuki TERANISHI

IPC: G06F3/041 ,  G01L1/14 ,  G06F3/044

Abstract: A force detection apparatus includes: a force detector that includes an electrode and a conductor facing the electrode across a first and a second layers and outputs a force signal value before correction; and a force detection controller outputting a force signal value after correction having a linear relationship with a force. In a first range of force in which the first layer is deformed and the second layer is not deformed, the force detection controller calculates the force signal value after correction, based on a product of the force and a first constant. In a second range of force in which the first and second layers are deformed, the force detection controller calculates the force signal value after correction, based on a sum of a product of a threshold and the first constant and a product of a difference between the force and the threshold and a second constant.

公开(公告)号：US20190064982A1

公开(公告)日：2019-02-28

申请号：US16173689

申请日：2018-10-29

Applicant: Japan Display Inc.

Inventor： Daisuke ITO ,  Hiroshi MIZUHASHI ,  Makoto HAYASHI ,  Yasuyuki TERANISHI ,  Tadayoshi KATSUTA

IPC: G06F3/041 ,  G09G3/36 ,  G06F3/044 ,  G02F1/133 ,  G02F1/1343 ,  G02F1/1333

CPC classification number: G06F3/0412 ,  G02F1/13306 ,  G02F1/13338 ,  G02F1/134309 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/3674 ,  G09G3/3696

Abstract: A liquid crystal display device includes: a liquid crystal element array including liquid crystal display elements arranged in a matrix form; scan lines arranged in each row of the liquid crystal element array and configured to supply scan signals to the liquid crystal display elements arranged in a corresponding row; signal lines arranged in each column of the liquid crystal element array and configured to supply image signals to the liquid crystal display elements arranged in a corresponding column; a plurality of driving electrodes arranged in the liquid crystal element array and supplied with driving signals for detecting an external proximity object; a first voltage line of a first voltage; a second voltage line of a second voltage; and a third voltage line of a third voltage.

公开(公告)号：US20190012014A1

公开(公告)日：2019-01-10

申请号：US16025605

申请日：2018-07-02

Applicant: Japan Display Inc.

Inventor： Michita KUDO ,  Yasuyuki TERANISHI ,  Takafumi SUZUKI

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

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/134309 ,  G02F1/13439 ,  G06F3/0412 ,  G06F3/0416 ,  G09G3/3648

Abstract: A display device includes a first substrate, a plurality of first electrodes, a second electrode, a third electrode, and a driver. The first electrodes are disposed in a display region of the first substrate. The second electrode faces the first electrodes in a direction perpendicular to the surface of the first substrate and forms capacitance between the second electrode and the first electrodes. The third electrode is provided in a peripheral region positioned on the outside of the display region and does not overlap the first electrodes in planar view. The driver supplies a drive signal to the third electrode and at least one of the first electrodes simultaneously.