公开(公告)号：US20220164055A1

公开(公告)日：2022-05-26

申请号：US17666674

申请日：2022-02-08

Applicant: Japan Display Inc.

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

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

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：US20220146892A1

公开(公告)日：2022-05-12

申请号：US17584637

申请日：2022-01-26

Applicant: Japan Display Inc.

Inventor： Hayato KURASAWA ,  Hiroshi MIZUHASHI

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

Abstract: A display device includes a first substrate, a second substrate, a display functional layer, first electrodes, pixel electrodes, second electrodes, a drive circuit, and a conductive body. The second substrate faces the first substrate. The display functional layer is provided between the first substrate and the second substrate. The first electrodes are provided between the first substrate and the second substrate. The pixel electrodes face the first electrodes between the first substrate and the second substrate. The second electrodes overlap the first electrodes through the display functional layer. The drive circuit supplies drive signals to a pair of the first electrode, wherein the drive circuit supplies a first electric potential to one of the pair of first electrodes and supplies a drive signal having a second electric potential different from the first electric potential to the other of the pair of first electrodes simultaneously.

公开(公告)号：US20210256238A1

公开(公告)日：2021-08-19

申请号：US17219252

申请日：2021-03-31

Applicant: Japan Display Inc.

Inventor： Hiroshi MIZUHASHI ,  Gen KOIDE ,  Hayato KURASAWA ,  Toshio SOYA ,  Fumitaka GOTOH

IPC: G06K9/00 ,  G06F3/041 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  H05K1/02

Abstract: A sensor is provided and includes a first control line; a first signal line; a first auxiliary line; a first detection electrode; a first detection switch connected to the first detection electrode, the first control line and the first signal line; and a first shielding electrode connected to the first auxiliary line, wherein the first shielding electrode is located to overlap the first signal line via an insulating film.

公开(公告)号：US20210182522A1

公开(公告)日：2021-06-17

申请号：US17187101

申请日：2021-02-26

Applicant: Japan Display Inc.

Inventor： Fumihito SHIBANO ,  Hiroshi MIZUHASHI ,  Toshinori UEHARA ,  Kimiyo NONOYAMA ,  Hayato KURASAWA

IPC: G06K9/00

Abstract: A fingerprint sensor is provided and includes substrate; sensor electrodes on substrate; first switches coupled to sensor electrodes; organic layer covering sensor electrodes; control line drive circuit in first direction; signal line drive circuit in second direction orthogonal to first direction; signal lines coupled to first switches; control lines coupling first switches to control line drive circuit; sensor drive electrode surrounding sensor electrodes; second switches between signal line drive circuit and signal lines; and first number of third switches between signal line drive circuit and first number of second switches, wherein distance of sensor drive electrode from surface of substrate is larger than distance of sensor electrodes from surface of substrate, and wherein first number is less than number of all second switches.

公开(公告)号：US20210124450A1

公开(公告)日：2021-04-29

申请号：US17139215

申请日：2020-12-31

Applicant: Japan Display Inc.

Inventor： Tadayoshi KATSUTA ,  Hiroshi MIZUHASHI

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device with a touch detection function is provided and includes a display area where a plurality of pixel electrodes are arranged in a matrix having a first direction and a second direction crossing the first direction above a substrate; common electrodes provided so as to face the pixel electrodes; an insulating layer between the common electrodes and the pixel electrodes; a display functional layer having an image display function of displaying an image on the display area; a plurality of pixel signal lines each coupled to the pixel electrodes, the pixel signal lines each extending in the first direction; a source selector that are coupled to the pixels through the pixel signal lines and that performs a switching operation, the source selector including a plurality of source switches; and a control device for performing image display control by applying a display drive voltage between the pixel electrodes and the common electrodes based on an image signal to exert the image display function of the display functional layer.

公开(公告)号：US20190339801A1

公开(公告)日：2019-11-07

申请号：US16518645

申请日：2019-07-22

Applicant: Japan Display Inc.

Inventor： Takeya TAKEUCHI ,  Hiroshi MIZUHASHI ,  Tadayoshi KATSUTA ,  Takehiro SHIMA

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

Abstract: A display device with a touch sensor includes: plural display pixel electrodes; a common electrode arranged opposite to the display pixel electrodes; a display function layer having an image display function; a display control circuit performing image display control so as to fulfill the display function of the display function layer by applying a voltage for display between the display pixel electrodes and the common electrode based on an image signal; and a touch detection electrode provided opposite to the common electrode and forming capacitance between the touch detection electrode and the common electrode, wherein a drive voltage for display applied to the common electrode by the display control circuit is used as a drive signal for the touch sensor, and a gate potential of TFT circuits included in the display pixel electrodes is increased during a period when the drive signal for the touch sensor is applied.

公开(公告)号：US20190278391A1

公开(公告)日：2019-09-12

申请号：US16422369

申请日：2019-05-24

Applicant: Japan Display Inc.

Inventor： Hiroshi MIZUHASHI ,  Hayato KURASAWA ,  Daichi SUZUKI ,  Fumitaka GOTOH

IPC: G06F3/0354 ,  G06F3/041 ,  G06F3/046

Abstract: A display apparatus with a touch detection function capable of improving accuracy is provided. The display apparatus includes: a pixel array having a plurality of pixels arranged in a matrix form; and a plurality of signal wires arranged in the pixel array. Here, when an externally-detecting object is detected, a plurality of coils having areas overlapping with each other are formed of a plurality of signal wires (drive electrodes) among the plurality of signal wires, and a magnetic field generated in the plurality of respective coils are superimposed in an overlapped area by supplying a drive signal to the plurality of coils.

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：US20190018537A1

公开(公告)日：2019-01-17

申请号：US16124355

申请日：2018-09-07

Applicant: Japan Display Inc.

Inventor： Kazuyuki KOBAYASHI ,  Hayato KURASAWA ,  Hiroshi MIZUHASHI ,  Masaya TAMAKI ,  Takeo KOITO ,  Koji NOGUCHI

IPC: G06F3/041 ,  G09G3/36 ,  F21V8/00 ,  G06F3/044

Abstract: According to one embodiment, a sensor-equipped display device includes a display panel, a detection electrode, a conductive member arranged at intervals from the display panel and the detection electrode, and controller. In a first sense period, the controller drives a common electrode of the display panel or the detection electrode and extracts input position data from the detection electrode. In a second sense period, the controller drives the conductive member and extracts first input pressure data from a first electrode, the controller drives a second electrode and extracts second input pressure data from the conductive member, or the controller drives a third electrode and extracts third input pressure data from the third electrode.

公开(公告)号：US20180181242A1

公开(公告)日：2018-06-28

申请号：US15848073

申请日：2017-12-20

Applicant: Japan Display Inc.

Inventor： Hiroshi MIZUHASHI ,  Hayato KURASAWA ,  Yoshitoshi KIDA ,  Toshinori UEHARA ,  Takayuki NAKANISHI

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04107 ,  G09G2310/0264

Abstract: A display device comprises a first power supply line supplying a first potential, a second power supply line supplying a second potential, a third power supply line supplying a touch driving signal, and a display unit including a plurality of sub-pixels. The display unit comprises a plurality of first electrodes respectively provided in the plurality of sub-pixels and electrically connected to the first power supply line, a second electrode provided to be common among the plurality of sub-pixels and electrically connected to the second power supply line, a light emitting layer provided between the first electrode and the second electrode, a plurality of third electrodes electrically connected to the third power supply line, and a signal control circuit supplying a signal synchronized with a touch driving signal to the second electrode in a period in which a touch driving signal is supplied to the plurality of third electrodes.