公开(公告)号：US11906355B1

公开(公告)日：2024-02-20

申请号：US18162687

申请日：2023-01-31

Applicant: Novatek Microelectronics Corp.

Inventor： Yu-Ying Tang ,  Yao Chung Chang ,  Chih-Chang Lai

IPC: G06V40/13 ,  G06F3/041 ,  G01J1/44 ,  G01J1/42 ,  H10K39/34 ,  G02F1/1333 ,  G02F1/1335 ,  H10K59/80 ,  H10K59/125

CPC classification number: G01J1/44 ,  G01J1/4204 ,  G02F1/13338 ,  G02F1/133512 ,  G06F3/0412 ,  G06V40/1318 ,  H10K39/34 ,  H10K59/8792 ,  G01J2001/446 ,  G01J2001/448 ,  H10K59/125

Abstract: An in-cell optical sensing display panel includes a pixel array, a plurality of first optical sensors and a plurality of second optical sensors. The pixel array is disposed in an active area of the in-cell optical sensing display panel, and the active area includes a first region and a second region which surrounds the first region. The sensor array is disposed in the first region of the active area and is configured to sense a fingerprint of a finger touching a surface of the in-cell optical sensing display panel. The second optical sensors are disposed in the second region of the active area and are configured to sense ambient light, and the second optical sensors are not to be used for fingerprint sensing.

公开(公告)号：US11874166B2

公开(公告)日：2024-01-16

申请号：US17938451

申请日：2022-10-06

Applicant: SENSORTEK TECHNOLOGY CORP.

Inventor： Wen-Cheng Chen ,  Kai-Hsiang Chan ,  Sheng-Wen Huang

IPC: G01J1/46 ,  G01J1/02 ,  G01J1/44

CPC classification number: G01J1/46 ,  G01J1/0228 ,  G01J2001/446

Abstract: The present application discloses a light sensor circuit, which comprises a photodiode and a capacitor unit. The cathode of the photodiode is controlled by a capacitive unit to maintain the same or close voltage level as the anode of the photodiode, which significantly reduces the effect of the dark current of the photodiode. Thus, the light sensor circuit can effectively maintain the performance and accuracy of an analog-to-digital converter applying the light sensor circuit. The circuit design difficulty and manufacturing cost are also significantly reduced.

公开(公告)号：US11860029B2

公开(公告)日：2024-01-02

申请号：US17418260

申请日：2020-12-29

Applicant: Beijing BOE Sensor Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Kunjing Chung ,  Dexi Kong

IPC: G01J1/18 ,  G01J1/46 ,  G01J1/44

CPC classification number: G01J1/18 ,  G01J1/46 ,  G01J2001/446 ,  G01J2001/4473

Abstract: Provided are a light intensity detection circuit, a light intensity detection method and an light intensity detection apparatus. The light intensity detection circuit includes a photoelectric conversion sub-circuit, a source follower sub-circuit, a reset sub-circuit, a read sub-circuit and a sense sub-circuit. The photoelectric conversion sub-circuit generates a corresponding electrical signal according to an incident light signal, and outputs it to a first node; the source follower sub-circuit generates a corresponding voltage signal or current signal according to the electrical signal of the first node and outputs it to a second node; the read sub-circuit reads the voltage signal or current signal of the second node to determine an incident light intensity; the reset sub-circuit provides a voltage at a offset voltage terminal to the first node.

公开(公告)号：US20230384155A1

公开(公告)日：2023-11-30

申请号：US18124952

申请日：2023-03-22

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： Takuya OKIMOTO ,  Hideki YAGI ,  Takuya MITARAI

IPC: G01J1/44

CPC classification number: G01J1/44 ,  G01J2001/446

Abstract: A light receiving device includes a semiconductor substrate having a first major surface and a second major surface opposite to the first major surface, and a metal pattern layer provided on the second major surface. The first major surface is provided with a first input port configured to receive an input of signal light, a second input port configured to receive an input of local oscillation light, a first light receiving element optically coupled to the first input port, an optical 90 degree hybrid element optically coupled to the first input port and the second input port, and a second light receiving element optically coupled to the optical 90 degree hybrid element. The metal pattern layer contains at least one of titanium or chromium.

公开(公告)号：US11830905B2

公开(公告)日：2023-11-28

申请号：US17203351

申请日：2021-03-16

Applicant: Guangdong University of Technology

Inventor： Jianguo Ma ,  Shaohua Zhou

IPC: H01L27/146 ,  G01J1/44 ,  H01L29/872

CPC classification number: H01L27/14669 ,  G01J1/44 ,  H01L29/872 ,  G01J2001/446

Abstract: The present disclosure discloses a terahertz detector based on a Schottky contact grating structure. THz response frequency points are adjusted by adjusting parameters (a grating width, a grating length, a grating region area, a grating period, and a grating pattern form) of the Schottky contact grating structure (in the detector design stage, the grating structure parameters can be adjusted according to the actually required detection frequency points (single frequency point or multiple frequency points)), thereby realizing single-frequency detection or realizing that one detector supports the detection of multiple frequency points. The grating is introduced into the Schottky Barrier Diode, so that the grated Schottky contact resonates with the terahertz waves, the plasma resonance effect is enhanced, and the detection sensitivity is further improved.

公开(公告)号：US11821789B2

公开(公告)日：2023-11-21

申请号：US18193605

申请日：2023-03-30

Applicant: ANPEC ELECTRONICS CORPORATION

Inventor： Chih-Ning Chen

IPC: G01J1/44 ,  H03F3/45

CPC classification number: G01J1/44 ,  H03F3/45475 ,  G01J2001/446

Abstract: A sensor is provided. A first terminal of a first current source and a first terminal of a first transistor are connected to a cathode of the photodiode. A control terminal of a second transistor is connected to an output terminal of a first operational amplifier. A first terminal of the second transistor is connected to a second terminal of the first transistor through a first current mirror circuit. A second terminal of the second transistor is connected to a second current source, a second input terminal of a second operational amplifier and a first terminal of a third transistor. A first input terminal of the second operational amplifier is connected to the first terminal of the first transistor. A control terminal of the third transistor is connected to an output terminal of the second operational amplifier.

公开(公告)号：US20230368568A1

公开(公告)日：2023-11-16

申请号：US18346453

申请日：2023-07-03

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Feng LU ,  Yang ZENG ,  Yaodong WU

IPC: G06V40/13 ,  H10K59/35 ,  H10K39/34 ,  G01J1/42 ,  G01J1/44

CPC classification number: G06V40/1318 ,  H10K59/35 ,  H10K39/34 ,  G01J1/4204 ,  G01J1/44 ,  G01J2001/446

Abstract: A display panel including light-sensing devices and light-detection circuits. The light-detection circuit includes a sensing module, a reading module, and a resetting module. The sensing module includes a control terminal electrically connected to the light-sensing device and the resetting module, an input terminal electrically connected to a first signal line, and an output terminal electrically connected to the reading module. Further, a first light-sensing device is electrically connected to the control terminal of the sensing module in a first light-detection circuit, and a second light-sensing device is electrically connected to the control terminal of the sensing module in a second light-detection circuit. The second light-detection circuit further includes a first capacitor, and the first capacitor is electrically connected to the control terminal of the sensing module in the second light-detection circuit.

公开(公告)号：US20230282435A1

公开(公告)日：2023-09-07

申请号：US18013571

申请日：2021-06-17

Applicant: UR FOG S.R.L.

Inventor： Mauro LOMBARDO ,  Giovanni BALESTRINI ,  Marco ZANGIROLAMI

IPC: H01H85/06 ,  G01K7/22 ,  G01J1/44 ,  H10N10/17

CPC classification number: H01H85/06 ,  G01K7/22 ,  G01J1/44 ,  H10N10/17 ,  G01J2001/446 ,  G01J2001/4473 ,  A63J5/025

Abstract: A safety system for a battery-powered fog generator is described, designed to operate on a vaporization coil (2) of a fogging fluid; the safety system includes: a fuse wire (1), each placed at one end of the coil (2), suitable for heating both due to a Joule effect and through heat coming from the coil (2) by thermal conduction, the fusible wire (1) being therefore designed to melt when its temperature exceeds a melting threshold value, interrupting the power supply from the battery to the coil (2); a sensor (6) designed to detect the temperature of the coil (2) when current flows in it; and a control unit (7) operatively connected to the sensor (6).

公开(公告)号：US11698295B2

公开(公告)日：2023-07-11

申请号：US17569764

申请日：2022-01-06

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hiroshi Watanabe ,  Kohei Sugahara ,  Takatoshi Kato

IPC: G01J1/02 ,  G01V8/20 ,  H01L31/12 ,  B25J19/02 ,  G01J1/44

CPC classification number: G01J1/0271 ,  G01V8/20 ,  H01L31/12 ,  B25J19/021 ,  G01J2001/446

Abstract: An optical sensor includes a light emitter to emit light, a light receiver to receive the light emitted from the light emitter, a first resin body that covers the light emitter and the light receiver to transmit the light emitted from the light emitter to emit the light outside, and a second resin body that seals the light emitter and the light receiver, in which the second resin body is included inside the first resin body, and the second resin body is harder than the first resin body.

公开(公告)号：US20230213383A1

公开(公告)日：2023-07-06

申请号：US18169955

申请日：2023-02-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yun Jae SUH ,  Sung Ho Kim ,  Jun Seok Kim

IPC: G01J1/44 ,  G01J1/02 ,  H03F3/45

CPC classification number: G01J1/44 ,  G01J1/0238 ,  H03F3/45071 ,  G01J2001/446 ,  G01J1/18

Abstract: A data output device is provided. The data output device includes a converter circuit configured to generate a conversion signal based on an output signal; a boosting circuit configured to generate a boosting signal based on the output signal; and an output circuit configured to generate the output signal based on an input signal and a feedback signal, the feedback signal being based on the conversion signal and the boosting signal.