公开(公告)号：US20240353949A1

公开(公告)日：2024-10-24

申请号：US18758032

申请日：2024-06-28

Applicant: Wacom Co., Ltd

Inventor： Oliver P. KING-SMITH ,  Bernardus H. SMIT ,  Peyman HADIZAD

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/038 ,  G06F3/044 ,  G06F3/046

CPC classification number: G06F3/04162 ,  G06F3/03545 ,  G06F3/0383 ,  G06F3/0416 ,  G06F3/04166 ,  G06F3/0418 ,  G06F3/044 ,  G06F3/0441 ,  G06F3/0442 ,  G06F3/0446 ,  G06F3/046 ,  G06F2203/04104 ,  G06F2203/04105 ,  G06F2203/04106 ,  G06F2203/04108

Abstract: A combination touch and transducer input system is provided, which facilitates user input into an electronic system with a finger and/or a transducer (e.g., a stylus). The system includes a transducer configured to generate an electric field, and a sensor including an array of electrodes and a controller. The transducer is configured to transmit digital data, such as pen pressure data and switch status data, to the sensor. For example, the transducer comprises electronic circuitry configured to encode the digital data in a signal for transmission to the sensor. The sensor controller is configured to operate both in a touch sensing mode and in a transducer sensing mode. During the touch sensing mode, the controller determines a position of a proximate object (e.g., a finger) by capacitively sensing the object with the array of electrodes. During the transducer sensing mode, the controller determines a position of the transducer based on a signal received by the array of electrodes from the transducer, and also receives and decodes the digital data encoded in the received signal. Digital data can be encoded in a signal using any suitable digital modulation techniques, such as a Frequency-Shift Keying (FSK) technique.

公开(公告)号：US12118172B2

公开(公告)日：2024-10-15

申请号：US18357543

申请日：2023-07-24

Applicant: Wacom Co., Ltd.

Inventor： Jun Kadowaki

IPC: G06F3/044 ,  G06F1/20 ,  G06F3/0354 ,  G06F3/041

CPC classification number: G06F3/0446 ,  G06F1/206 ,  G06F3/03547 ,  G06F3/0412 ,  G06F3/04166 ,  G06F3/04182 ,  G06F2203/04112

Abstract: Electronic equipment includes a touch sensor including a plurality of electrodes arranged in a plane shape and separated from each other in an array direction, a differential amplifier that amplifies a difference between a positive-side signal and a negative-side signal selectively output from the plurality of electrodes and that outputs the difference, a position detection unit that detects a touch position in a sensor area that is formed by the touch sensor, based on an output signal from the differential amplifier, and a conductive part that is a part made of a conductive material or contains a conductive material and that is arranged to partially overlap the sensor area in plan view. The conductive part is arranged such that an outermost end point thereof in the array direction is positioned on one of the plurality of electrodes.

公开(公告)号：US12118167B2

公开(公告)日：2024-10-15

申请号：US18349979

申请日：2023-07-11

Applicant: Japan Display Inc.

Inventor： Takumi Sano

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0443 ,  G06F3/04164 ,  G06F3/04166 ,  G06F2203/04102 ,  G06F2203/04108

Abstract: According to an aspect, a touch panel includes, in sequence: a stretchable array substrate, a touch detection electrode; and a resin plate. The resin plate has: a facing surface facing the touch detection electrode; and a detection surface facing opposite to the facing surface. The facing surface or the detection surface has a recessed surface. The recessed surface is provided with a high permittivity layer having permittivity higher than permittivity of the resin plate. The touch detection electrode and the high permittivity layer overlap when viewed in a stacking direction in which the stretchable array substrate, the touch detection electrode, and the resin plate are stacked.

公开(公告)号：US12111995B2

公开(公告)日：2024-10-08

申请号：US18166321

申请日：2023-02-08

Applicant: Wacom Co., Ltd.

Inventor： Sadao Yamamoto ,  Yoshio Nomura

IPC: G06F3/038 ,  G06F3/0354 ,  G06F3/041 ,  G06F9/54 ,  G06V30/142 ,  G06V30/32

CPC classification number: G06F3/04162 ,  G06F3/03545 ,  G06F3/04166 ,  G06F9/542 ,  G06F9/544

Abstract: A method performed by a device (e.g., touch controller) includes deriving a pen position, and transmitting a report indicating the derived pen position to a host computer. The report includes a first area storing position data indicating the derived position and a second area storing non-position data different from the position data. The method includes securing a buffer area for retaining a plurality of the reports in a memory, deriving the pen position at each determined scanning time, and generating a report including the position data indicating the derived position. The method includes storing the report in the buffer area and, in response to obtaining the non-position data, writing the non-position data in the second area of each of one or more of the reports stored in the buffer area. The method includes transmitting the plurality of the reports stored in the buffer area to the host computer.

公开(公告)号：US12111993B2

公开(公告)日：2024-10-08

申请号：US18516394

申请日：2023-11-21

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Hayato Kurasawa ,  Kohei Azumi

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

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/134336 ,  G06F3/04166 ,  G06F3/0445 ,  G06F3/0446 ,  G02F2201/123 ,  G02F2201/52 ,  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.

公开(公告)号：US20240329778A1

公开(公告)日：2024-10-03

申请号：US18736699

申请日：2024-06-07

Applicant: HiDeep Inc.

Inventor： Seyeob KIM ,  Hwanhee LEE ,  Bonkee KIM

IPC: G06F3/041

CPC classification number: G06F3/0418 ,  G06F3/04162 ,  G06F3/04166 ,  G06F2203/04104

Abstract: An exemplary embodiment of the present invention provides a touch apparatus including: a touch panel configured to include a plurality of touch electrodes; a touch driver configured to apply a first driving signal to a first touch electrode of the touch electrodes during a first period, and a second driving signal to the touch electrodes during a second period subsequent to the first period; and a touch controller configured to determine a detection signal as a valid touch signal based on whether a signal strength of the detection signal received in response to the first driving signal exceeds a first threshold during the first period, wherein the detection signal include at least one of a first detection signal generated by a first touch object and a second detection signal generated by a second touch object, and the first detection signal is determined as a valid touch signal, while the first threshold is set to filter the second detection signal.

公开(公告)号：US20240329774A1

公开(公告)日：2024-10-03

申请号：US18515817

申请日：2023-11-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JIN TAEK HONG ,  JA SEUNG KU

IPC: G06F3/041

CPC classification number: G06F3/04166 ,  G06F3/04184 ,  G06F3/0446 ,  G06F2203/04107

Abstract: A sensor device includes a sensor array including a plurality of sensor nodes, signal lines electrically connected to the plurality of sensor nodes, and a sensor driver configured to sense a user's touch of the sensor array by selecting the plurality of sensor nodes through the signal lines, apply a first pulse signal having a same phase as a target pulse signal of a selected sensor node to at least one first sensor node adjacent to the selected sensor node among the plurality of sensor nodes, and apply a second pulse signal having a phase opposite to that of the first pulse signal to at least one second sensor node among the plurality of sensor nodes. The sensor driver sets at least one sensor node adjacent to or spaced apart from the first sensor node as the second sensor node according to a preset mode.

公开(公告)号：US12105909B2

公开(公告)日：2024-10-01

申请号：US18112642

申请日：2023-02-22

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hung-Hsiang Chen ,  Chang-Hung Chen ,  Huang-Chin Tang

IPC: G06F3/041 ,  G09G3/3225

CPC classification number: G06F3/04166 ,  G09G3/3225 ,  G09G2310/08

Abstract: The disclosure provides a method for driving an OLED touch-and-display device, a driving circuit, and an OLED touch-and-display device. The method includes: dividing each display frame into at least one display period and at least one touch detection period which are alternated; during each display period, generating sequentially-shifted gate driving signals and sequentially-shifted light-emission control signals, and sequentially applying the sequentially-shifted gate driving signals to at least a part of gate driving lines, and sequentially applying the sequentially-shifted light-emission control signals to at least a part of light-emission control lines; during each touch detection period, suspending generation of sequentially-shifted gate driving signals without suspending generation of sequentially-shifted light-emission control signals; and during a period when a gate driving signal for each row of pixels is of active level, maintaining a light-emission control signal for the row of pixels at inactive level.

公开(公告)号：US12099665B2

公开(公告)日：2024-09-24

申请号：US17942846

申请日：2022-09-12

Applicant: Wacom Co., Ltd.

Inventor： Hideyuki Hara ,  Yoshio Nomura

IPC: G06F3/0354 ,  G06F3/038 ,  G06F3/041 ,  G06F3/044

CPC classification number: G06F3/03545 ,  G06F3/04162 ,  G06F3/04166 ,  G06F3/0442 ,  G06F3/0446 ,  G06F3/0383 ,  G06F2203/04106 ,  G06F2203/04112

Abstract: A stylus capable of bidirectionally communicating with a sensor controller includes a receiver that receives an uplink signal sent by the sensor controller, a controller that determines whether a signal having a predetermined waveform is to be continuously sent over a second time period or to be continuously sent over a first time period longer than the second time period, on the basis of the uplink signal, and a transmitter that continuously sends the signal having the predetermined waveform over the first time period or the second time period on the basis of the result of determination by the controller. As a result, the sensor controller can detect a burst signal from the stylus over a wide range in a sensor touch surface, to thereby reduce the possibility that the sensor controller may fail to detect the burst signal.

公开(公告)号：US20240310951A1

公开(公告)日：2024-09-19

申请号：US18676230

申请日：2024-05-28

Applicant: Wacom Co., Ltd.

Inventor： Jun KADOWAKI

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/04883

CPC classification number: G06F3/04166 ,  G06F3/03547 ,  G06F3/04883

Abstract: Provided is a system for a touch pad used by both a finger and a pen to input operations to a computer. The system includes a sensor electrode group, an integrated circuit, and a memory storing a device driver. The sensor electrode group is configured to be placed over a touch surface that is different from a display surface of the computer. The integrated circuit uses the sensor electrode group to detect a touch position on the touch surface where the finger is in contact and a pen position on the touch surface where the pen is in contact and supplies the detected touch position and pen position to the device driver. The device driver is configured to convert the touch position into relative coordinates when the device driver receives the touch position, and convert the pen position into absolute coordinates when the device driver receives the pen position.