公开(公告)号：US20140152613A1

公开(公告)日：2014-06-05

申请号：US14082826

申请日：2013-11-18

Applicant: Japan Display Inc

Inventor： Koji Ishizaki ,  Hayato Kurasawa ,  Kohei Azumi

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/134336 ,  G02F2201/123 ,  G02F2201/52 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04107 ,  G06F2203/04108 ,  G06F2203/04111 ,  G06F2203/04112

Abstract: According to an aspect, a display device with a touch detection function includes: a substrate; a drive electrode that extends in a first direction; and a plurality of touch detection electrodes that are metal wirings extending in a second direction different from the first direction. The metal wirings are arranged with a predetermined pitch so as to make capacitive coupling with the drive electrode.

Abstract translation: 根据一方面，具有触摸检测功能的显示装置包括：基板; 驱动电极，其沿第一方向延伸; 以及作为沿与第一方向不同的第二方向延伸的金属配线的多个触摸检测电极。 金属布线以预定间距排列，以便与驱动电极进行电容耦合。

公开(公告)号：US11853521B2

公开(公告)日：2023-12-26

申请号：US17508507

申请日：2021-10-22

Applicant: Japan Display Inc.

Inventor： Yasuyuki Teranishi ,  Takafumi Suzuki ,  Kohei Azumi

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0448 ,  G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/0445 ,  G06F3/0446 ,  G06F3/04166

Abstract: A noise immunity of a detected capacitance is prevented or inhibited from lowering on a driving electrode different in width from the other driving electrodes, provided in an input device. A touch panel serving as an input device has a plurality of driving electrodes extending in an X-axis direction and arranged in a Y-axis direction intersecting with the X-axis direction, and a driving electrode arranged outside one side of an arrangement of the driving electrodes and extending in the X-axis direction. Further, the touch panel TP1 has a plurality of detecting electrodes extending in the Y-axis direction and arranged in the X-axis direction. The width of the driving electrode is smaller than the widths of the driving electrodes and the detecting electrode includes an expanding portion for expanding the area of the detecting electrode on the side opposite to the plurality of driving electrodes via the driving electrode.

公开(公告)号：US11740747B2

公开(公告)日：2023-08-29

申请号：US17706051

申请日：2022-03-28

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Kohei Azumi ,  Koji Ishizaki ,  Hideki Kaneko ,  Tsutomu Harada

IPC: G06F3/041 ,  G02F1/1335 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1343

CPC classification number: G06F3/0445 ,  G02F1/13338 ,  G02F1/133528 ,  G02F1/134363 ,  G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/0446 ,  G06F3/04164 ,  G02F1/134318 ,  G06F2203/04103 ,  Y10T29/49117

Abstract: Display device is provided and includes display part including first and second substrates, first and second polarizing plates, display area that includes pixel electrodes, a common electrode and display functional layer each of which is arranged between first and second substrates, display image formed by applying display voltage between pixel electrodes and common electrode in display period, input part including third substrate having back surface facing front surface of display part, detection electrodes formed on back surface of third substrate, and conductive layer provided between back surface of third substrate and front surface of display part, wherein conductive layer overlaps third substrate without through detection electrodes outside display area, and part of detection electrodes is uncovered by conductive layer outside display area.

公开(公告)号：US11327591B2

公开(公告)日：2022-05-10

申请号：US17208341

申请日：2021-03-22

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Hayato Kurasawa ,  Kohei Azumi

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1343

Abstract: A display device with a touch detection device is provided and includes display elements arranged in matrix of row and column direction and surrounded by scan lines each extending in a first direction and a signal lines each extending in a second direction, the display elements including a red display element, a green display element, and a blue display element; light shielding members each extending in one direction, the light shielding members arranged between the display elements adjacent to each other; and touch detection electrodes each extending in the one direction and arranged between the light shielding members and the display elements, and the touch detection electrodes including metal wires that extend overlapping the light shielding members, Wherein the metal wires are divided into metal wire parts that are arranged in the column direction, and the metal wire parts, each being longitudinal in the one direction, are disposed without crossing each other and spaced from each other in the one direction.

公开(公告)号：US11287934B2

公开(公告)日：2022-03-29

申请号：US16918404

申请日：2020-07-01

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Kohei Azumi ,  Koji Ishizaki ,  Hideki Kaneko ,  Tsutomu Harada

IPC: G02F1/1335 ,  G06F3/041 ,  G06F3/045 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1343

Abstract: The reliability of a display device with an input device is improved. A plurality of detection electrodes (input position detection electrodes) forming an electrostatic capacity between them and a common electrode of a display device to detect an input position are formed on a different substrate from substrates configuring the display device. Moreover, a polarizing plate and the substrate on which the plurality of detection electrodes are formed are adhesively fixed via, for example, an adhesive layer so that the plurality of detection electrodes are fixed so as to be separated apart from the display device. Thus, a distance between electrodes (the detection electrode and a driving electrode) for detecting an input position can be set separately from a thickness of the display device, and therefore, reduction in detection sensitivity (detection reliability) for the input position due to increase in the electrostatic capacity can be suppressed.

公开(公告)号：US11281319B2

公开(公告)日：2022-03-22

申请号：US16706268

申请日：2019-12-06

Applicant: Japan Display Inc.

Inventor： Yoshitoshi Kida ,  Koji Noguchi ,  Hiroshi Mizuhashi ,  Kohei Azumi

IPC: G06F3/041 ,  H03K17/96 ,  G06F3/044 ,  G02F1/1333

Abstract: There are provided a display panel with a touch detection function, a drive circuit, and an electronic unit, which make it possible to realize many functions related to touch detection. The display panel includes: one or more display elements; one or more drive electrodes extending in one direction; an electrode drive section integrated into a chip, and applying a drive signal to the drive electrodes; and one or more touch detection electrodes extending in a direction intersecting the direction in which the drive electrodes extend.

公开(公告)号：US11194421B2

公开(公告)日：2021-12-07

申请号：US16829094

申请日：2020-03-25

Applicant: Japan Display Inc.

Inventor： Kohei Azumi ,  Toshinori Uehara

IPC: G06F3/041 ,  G06K9/00 ,  G06F3/044

Abstract: According to an aspect, a detection device includes at least a first touch detection period, in which first touch detection is performed, and a fingerprint detection period, in which fingerprint detection is performed. In the first touch detection period, a plurality of second electrodes in a second detection area in a first detection area are simultaneously selected, a plurality of first electrodes in the first detection area are simultaneously selected, and a first detection signal corresponding to a capacitance change between first electrodes and second electrodes are sequentially output. In the fingerprint detection period, the second electrodes in a plurality of divided areas obtained by dividing a second detection area are sequentially selected, the first electrodes in the divided areas are sequentially selected, and a second detection signal corresponding to a capacitance change between the first electrodes and the second electrodes is output.

公开(公告)号：US20210271337A1

公开(公告)日：2021-09-02

申请号：US17322059

申请日：2021-05-17

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Yoshitoshi Kida ,  Kohei Azumi

IPC: G06F3/041 ,  G06F3/047 ,  G09G5/00 ,  G09G5/18 ,  G09G3/36 ,  G06F3/044

Abstract: A display device is provided and includes scanning and signal lines; switch electrically coupled to scanning and signal lines; pixel electrode electrically coupled to switch and opposed to drive electrode; first and second display periods, and detection period between first and second display periods, wherein during first and second display periods, common voltage is applied to drive electrode, scanning signal is applied to scanning line and switch, pixel signal is applied to pixel electrode through signal line and switch, during detection period, AC drive signal or pulse drive signal is applied to drive electrode, and scanning signal is not applied to scanning line.

公开(公告)号：US10809852B2

公开(公告)日：2020-10-20

申请号：US16573477

申请日：2019-09-17

Applicant: Japan Display Inc.

Inventor： Yasuyuki Teranishi ,  Takafumi Suzuki ,  Kohei Azumi

IPC: G06F3/041 ,  G06F3/044

Abstract: A noise immunity of a detected capacitance is prevented or inhibited from lowering on a driving electrode different in width from the other driving electrodes, provided in an input device. A touch panel serving as an input device has a plurality of driving electrodes extending in an X-axis direction and arranged in a Y-axis direction intersecting with the X-axis direction, and a driving electrode arranged outside one side of an arrangement of the driving electrodes and extending in the X-axis direction. Further, the touch panel TP1 has a plurality of detecting electrodes extending in the Y-axis direction and arranged in the X-axis direction. The width of the driving electrode is smaller than the widths of the driving electrodes and the detecting electrode includes an expanding portion for expanding the area of the detecting electrode on the side opposite to the plurality of driving electrodes via the driving electrode.

公开(公告)号：US10692448B2

公开(公告)日：2020-06-23

申请号：US14739707

申请日：2015-06-15

Applicant: Japan Display Inc.

Inventor： Yoshitoshi Kida ,  Kohei Azumi ,  Koji Noguchi ,  Koji Ishizaki

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

Abstract: A display unit with touch detection function includes a plurality of pixel signal lines each transmitting a pixel signal for display; a pixel signal line drive section applying the pixel signal to each of the pixel signal lines; display elements each performing display based on the pixel signal; touch detection electrodes each outputting a detection signal based on a change in capacitance occurring due to an external proximity object; and a touch detection section detecting, in a touch detection period, a touch event based on the detection signal, the touch detection period being different from a display period for the display elements to perform display operation. The pixel signal line drive section maintains a voltage of each of the pixel signal lines at a certain level during the touch detection period.