公开(公告)号：US10949016B2

公开(公告)日：2021-03-16

申请号：US15872422

申请日：2018-01-16

Applicant: Japan Display Inc.

Inventor： Yasuyuki Teranishi ,  Yoshiharu Nakajima

IPC: G06F3/045 ,  G06F3/041 ,  G06F3/044

Abstract: According to one embodiment, a display device which displays an image in a display area based on a pixel signal is provided. The display device includes a first substrate, a second substrate opposed to the first substrate, a first electrode arranged in the first substrate and overlapping a frame area outside the display area, second electrodes arranged in the second substrate and overlapping the display area, and a touch detection driver configured to output a drive signal to the first electrode and detect contact or proximity of an object with the frame area based on electrostatic capacitance between the first electrode and the second electrodes.

公开(公告)号：US10223982B2

公开(公告)日：2019-03-05

申请号：US15655246

申请日：2017-07-20

Applicant: Japan Display Inc.

Inventor： Yoshiharu Nakajima ,  Hayato Kurasawa

IPC: G06F3/044 ,  G09G3/34 ,  G06F3/041

Abstract: In a display apparatus provided with an electrophoresis layer, such a display apparatus as to improve the response performance of a touch detection is provided. A driving unit included in a display apparatus alternately repeats a display driving process for supplying a first driving signal to a driving electrode disposed in a selected partial display region and a detection driving process for supplying a second driving signal to a driving electrode disposed in another selected partial display region while successively cyclically changing the partial display region and successively cyclically changing another partial detection region. Moreover, in the detection driving process, a touch detection unit included in the display apparatus detects an input position at another selected partial detection region based on an electrostatic capacitance of the driving electrode disposed at another selected detection region.

公开(公告)号：US09734769B2

公开(公告)日：2017-08-15

申请号：US14790196

申请日：2015-07-02

Applicant: Japan Display Inc.

Inventor： Yoshiharu Nakajima ,  Hayato Kurasawa

IPC: G09G3/34 ,  G06F3/044 ,  G06F3/041

CPC classification number: G09G3/344 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044

Abstract: In a display apparatus provided with an electrophoresis layer, such a display apparatus as to improve the response performance of a touch detection is provided. A driving unit included in a display apparatus alternately repeats a display driving process for supplying a first driving signal to a driving electrode disposed in a selected partial display region and a detection driving process for supplying a second driving signal to a driving electrode disposed in another selected partial display region while successively cyclically changing the partial display region and successively cyclically changing another partial detection region. Moreover, in the detection driving process, a touch detection unit included in the display apparatus detects an input position at another selected partial detection region based on an electrostatic capacitance of the driving electrode disposed at another selected detection region.

公开(公告)号：US20150301689A1

公开(公告)日：2015-10-22

申请号：US14705664

申请日：2015-05-06

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Yoshiharu Nakajima ,  Michiru Senda ,  Kazunori Yamaguchi ,  Mitsuru Tateuchi ,  Ryoichi Tsuzaki ,  Toshikazu Maekawa

IPC: G06F3/042 ,  G09G3/34 ,  H04N5/378 ,  G06F3/041

CPC classification number: G06F3/0421 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/042 ,  G06F3/04883 ,  G06F2203/04101 ,  G09G3/3406 ,  G09G2354/00 ,  G09G2360/142 ,  H04N5/378

Abstract: An image pickup device capable of stably detecting an object irrespective of use conditions while reducing manufacturing costs is provided. When illumination light from a backlight is emitted to a proximity object from an I/O display panel, an electric charge is accumulated in image pickup pixels in accordance with total light amount, including reflected light originating from the backlight and external environment light. Moreover, when the illumination light is not emitted, a discharging electric charge is released from the image pickup pixels in accordance with the amount of environment light. Thereby, an environment light component is subtracted from an image pickup signal obtained from each of the image pickup pixels, so object information about the proximity object is obtained without influence of the environment light. Moreover, in a light reception drive circuit, fewer frame memories for producing a picked-up image from the image pickup signal are necessary.

Abstract translation: 提供能够在不影响使用条件的同时稳定地检测物体的同时降低制造成本的图像拾取装置。 当来自背光源的照明光从I / O显示面板发射到接近物体时，根据包括来自背光的反射光和外部环境光的总光量积累在摄像像素中的电荷。 此外，当不发出照明光时，根据环境光的量，从摄像像素中释放放电电荷。 因此，从从每个摄像像素获得的摄像信号中减去环境光分量，从而获得关于邻近物体的对象信息而不受环境光的影响。 此外，在光接收驱动电路中，需要较少的用于从摄像信号产生拾取图像的帧存储器。

公开(公告)号：US09405406B2

公开(公告)日：2016-08-02

申请号：US14705664

申请日：2015-05-06

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Yoshiharu Nakajima ,  Michiru Senda ,  Kazunori Yamaguchi ,  Mitsuru Tateuchi ,  Ryoichi Tsuzaki ,  Toshikazu Maekawa

IPC: G06F3/042 ,  G06F3/041 ,  G06F3/0488 ,  G09G3/34 ,  H04N5/378

CPC classification number: G06F3/0421 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/042 ,  G06F3/04883 ,  G06F2203/04101 ,  G09G3/3406 ,  G09G2354/00 ,  G09G2360/142 ,  H04N5/378

Abstract: An image pickup device capable of stably detecting an object irrespective of use conditions while reducing manufacturing costs is provided. When illumination light from a backlight is emitted to a proximity object from an I/O display panel, an electric charge is accumulated in image pickup pixels in accordance with total light amount, including reflected light originating from the backlight and external environment light. Moreover, when the illumination light is not emitted, a discharging electric charge is released from the image pickup pixels in accordance with the amount of environment light. Thereby, an environment light component is subtracted from an image pickup signal obtained from each of the image pickup pixels, so object information about the proximity object is obtained without influence of the environment light. Moreover, in a light reception drive circuit, fewer frame memories for producing a picked-up image from the image pickup signal are necessary.

Abstract translation: 提供能够在不影响使用条件的同时稳定地检测物体的同时降低制造成本的图像拾取装置。 当来自背光源的照明光从I / O显示面板发射到接近物体时，根据包含来自背光和外部环境光的反射光的总光量积累摄像像素中的电荷。 此外，当不发出照明光时，根据环境光的量，从摄像像素中释放放电电荷。 因此，从从每个摄像像素获得的摄像信号中减去环境光分量，从而获得关于邻近物体的对象信息而不受环境光的影响。 此外，在光接收驱动电路中，需要较少的用于从摄像信号产生拾取图像的帧存储器。

公开(公告)号：US12292658B2

公开(公告)日：2025-05-06

申请号：US17221089

申请日：2021-04-02

Applicant: Japan Display Inc.

Inventor： Tadayoshi Katsuta ,  Shunsuke Noichi ,  Yasuyuki Teranishi ,  Satoshi Uchino ,  Hayato Kurasawa ,  Yoshiharu Nakajima

IPC: H10D30/67 ,  G02F1/1343 ,  G02F1/1345 ,  G02F1/1362 ,  G02F1/1368 ,  H10D86/40 ,  H10D86/60

Abstract: A display device includes a display region having a plurality of pixels, a driver IC provided in a frame region on an outer side of the display region and configured to drive the pixels, a first power source wiring line and a second power source wiring line each electrically coupled to the driver IC, and a first electrode that is arranged so as to face the first power source wiring line and the second power source wiring line via a first insulating layer, and is electrically coupled to the first power source wiring line.

公开(公告)号：US10739917B2

公开(公告)日：2020-08-11

申请号：US14790283

申请日：2015-07-02

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Yoshiharu Nakajima

IPC: G06F3/044 ,  G09G3/34 ,  G06F3/01 ,  G06F3/041 ,  G02F1/167 ,  G02F1/1676

Abstract: In a display apparatus provided with an electrophoresis layer, such a display apparatus capable of operating a driving electrode for use in displaying an image as an electrode for use in detecting an input position is provided. A display apparatus includes: a substrate; another substrate that is disposed so as to face the substrate; an electrophoresis layer sandwiched between the substrate and another substrate; a plurality of pixel electrodes formed on the substrate; and a plurality of driving electrodes formed on another substrate. An electric field is formed between each of the plurality of pixel electrodes and each of the plurality of driving electrodes, so that an image is displayed, and an input position is detected based on an electrostatic capacitance of each of the plurality of driving electrodes.

公开(公告)号：US11226680B2

公开(公告)日：2022-01-18

申请号：US16918561

申请日：2020-07-01

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Yoshiharu Nakajima

IPC: G06F3/041 ,  G09G3/34 ,  G06F3/01 ,  G02F1/167 ,  G02F1/1676 ,  G02F1/16766 ,  G06F3/044

Abstract: In a display apparatus provided with an electrophoresis layer, such a display apparatus capable of operating a driving electrode for use in displaying an image as an electrode for use in detecting an input position is provided. A display apparatus includes: a substrate; another substrate that is disposed so as to face the substrate; an electrophoresis layer sandwiched between the substrate and another substrate; a plurality of pixel electrodes formed on the substrate; and a plurality of driving electrodes formed on another substrate. An electric field is formed between each of the plurality of pixel electrodes and each of the plurality of driving electrodes, so that an image is displayed, and an input position is detected based on an electrostatic capacitance of each of the plurality of driving electrodes.

公开(公告)号：US09417495B2

公开(公告)日：2016-08-16

申请号：US14333713

申请日：2014-07-17

Applicant: Japan Display, Inc.

Inventor： Yasuyuki Teranishi ,  Yoshiharu Nakajima

IPC: G09G3/36 ,  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。