Patents Assigned to Egis Technology Inc.
  • Publication number: 20230326232
    Abstract: The present disclosure provides a fingerprint sensing apparatus. A sensing pixel array comprises a plurality of sensing pixels; and each sensing pixel senses an optical signal comprising fingerprint information, and according to the optical signal and an operation voltage, generates a sensing signal. A control circuit adjusts the voltage value of the operation voltage according to the sensing signal, so that the voltage value of the sensing signal generated by each sensing pixel falls within a default range. An analog-to-digital conversion circuit converts the sensing signal into a digital signal.
    Type: Application
    Filed: July 30, 2020
    Publication date: October 12, 2023
    Applicant: Egis Technology Inc.
    Inventor: Shiue-Shin Liu
  • Publication number: 20230314569
    Abstract: A distance sensing module includes a first substrate, an upper cover, a light-emitting unit, and at least one sensing pixel. The upper cover is disposed on the first substrate to form an accommodating space. The light-emitting unit is disposed at an emitting end in the accommodating space. The sensing pixel is disposed at a receiving end in the accommodating space and includes a second substrate disposed in the accommodating space and having a top surface, sensing areas disposed in the second substrate and exposed on the top surface, a light guide layer including light guide structures having first sides connected to a light transmission layer and second sides coupled to the sensing areas, a lens layer including at least one lens, and the light transmission layer between the light guide layer and the lens layer. The light guide layer is between the second substrate and the light transmission layer.
    Type: Application
    Filed: February 22, 2023
    Publication date: October 5, 2023
    Applicant: Egis Technology Inc.
    Inventor: Chen-Wei Fan
  • Publication number: 20230260315
    Abstract: Provided is a fingerprint sensing system disposed under a display. The fingerprint sensing system includes a sensor and a controller. The sensor has a plurality of sensing pixels arranged into an array, and the sensing pixels includes at least one functional sensing pixel. The controller is electrically connected to the sensor. The controller calculates an environmental parameter according to a signal obtained by the at least one functional sensing pixel.
    Type: Application
    Filed: October 19, 2020
    Publication date: August 17, 2023
    Applicant: Egis Technology Inc.
    Inventors: Tong-Long Fu, Wei Jung Wang
  • Publication number: 20230261013
    Abstract: The invention provides a photoelectric sensor including a substrate and multiple pixel structures. The pixel structures are disposed on the substrate and arranged in an array. Each of the pixel structures includes a transistor and a photodiode. The photodiode includes a first electrode, a photosensitive layer, and a second electrode. The first electrode and the transistor are laterally arranged side by side. A first part of the photosensitive layer is disposed on the first electrode, and a second part of the photosensitive layer extends from the first part to above the transistor. The second electrode is disposed on the photosensitive layer, and is located above the first electrode and the transistor.
    Type: Application
    Filed: November 27, 2020
    Publication date: August 17, 2023
    Applicant: Egis Technology Inc.
    Inventors: Bruce C. S. Chou, Chen-Chang Huang, Chen-Chih Fan
  • Patent number: 11709095
    Abstract: A light sensing module including a photodiode array substrate, a distance increasing layer, and a light converging element array is provided. The photodiode array substrate includes a plurality of light sensing units arranged in an array and a circuit region. The circuit region is disposed on the periphery of the light sensing units. Each of the light sensing units includes a plurality of adjacent photodiodes arranged in an array. The distance increasing layer is disposed on the photodiode array substrate. The light converging element array is disposed on the distance increasing layer, and includes a plurality of light converging units arranged in an array. Reflected light from an outside is converged by the light converging elements on the light sensing units, respectively.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: July 25, 2023
    Assignee: Egis Technology Inc.
    Inventors: Chen-Chih Fan, Bruce C. S. Chou
  • Patent number: 11683605
    Abstract: An image sensor chip and a sensing method thereof are provided. The image sensor chip includes a pixel array. The pixel array includes a plurality of pixel units, and each of the pixel units includes a light sensing circuit, a reset switch and an output circuit. The reset switch is coupled to a first terminal of the light sensing circuit. The reset switch resets the light sensing circuit during reset period. The output circuit is coupled to the first terminal of the light sensing circuit. The output circuit of the pixel unit outputs difference information corresponding to the difference between the first sensing result of the light sensing circuit in a first frame period and the second sensing result of the light sensing circuit in a second frame period after the first frame period to a corresponding one of a plurality of readout lines of the pixel array.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: June 20, 2023
    Assignee: Egis Technology Inc.
    Inventors: Chih-Cheng Hsieh, Yen-Kai Chen, Tzu-Hsiang Hsu
  • Publication number: 20230152916
    Abstract: Provided is an electronic device comprising a touch display panel and an integrated chip. The touch display panel comprises a pixel array. The integrated chip is electrically connected to the pixel array. The integrated chip comprises a fingerprint sensing circuit and a display driving circuit. The fingerprint sensing circuit and the display driving circuit are electrically connected to a plurality of display data lines and sensing data lines by means of the same pin. The plurality of display data lines are respectively electrically connected to a plurality of color sub-pixels of the pixel array. The sensing data lines are electrically connected to a plurality of fingerprint sensing pixels of the pixel array. The plurality of color sub-pixels are a plurality of organic light emitting diode pixels.
    Type: Application
    Filed: October 23, 2020
    Publication date: May 18, 2023
    Applicant: Egis Technology Inc.
    Inventors: Yao-Li Huang, Yu-Hsuan Lin, Tzu-Yang Peng
  • Publication number: 20230139066
    Abstract: Disclosed is an image sensing apparatus. A light sensing unit receives a light signal including image information in order to generate a sensing signal. An integrator circuit conducts an integral operation on the sensing signal during integration, so as to accumulate the sensing signals in order to generate an accumulative sensing value falling within a default range.
    Type: Application
    Filed: December 22, 2020
    Publication date: May 4, 2023
    Applicant: Egis Technology Inc.
    Inventor: Tzu-Li Hung
  • Patent number: 11636706
    Abstract: An under-screen fingerprint sensing device and a fingerprint sensing method are provided. The under-screen fingerprint sensing device includes a fingerprint sensor and a processor. When the fingerprint sensor senses a target object, a first color pixel, a second color pixel, and a third color pixel of the fingerprint sensor respectively output a first color original value, a second color original value, and a third color original value. The processor performs FFC on the first color original value, the second color original value, and the third color original value respectively to generate a first color correction value, a second color correction value, and a third color correction value. The processor determines whether the target object is a real finger according to the first color correction value, the second color correction value, and the third color correction value.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: April 25, 2023
    Assignee: Egis Technology Inc.
    Inventors: Kuan-Yi Lin, Chen Yang, Po-Chiang Hsieh, Pei-Shan Liu
  • Publication number: 20230123651
    Abstract: “An image sensing device is provided in the present invention. A control circuit determines a voltage change rate of a sensing signal according to a voltage value of the sensing signal generated by a light sensing unit during an estimation period, and controls an input adjustment circuit during an exposure period according to the voltage change rate to provide an input adjustment signal to a negative input end of an operational amplifier, such that a signal value of an amplified signal falls within a pre-set range during the exposure period.
    Type: Application
    Filed: January 8, 2021
    Publication date: April 20, 2023
    Applicant: Egis Technology Inc.
    Inventors: Yu-Hsuan Lin, Tzu-Yang Peng, Chung-Yi Wang, Tzu-Li Hung
  • Publication number: 20230121432
    Abstract: An optical sensing circuit and an optical sensing method are provided. The optical sensing circuit includes a first photosensitive unit, a second photosensitive unit, an arithmetic unit, and a control unit. The first photosensitive unit and the second photosensitive unit provide a sensing current during a light sensing period. The arithmetic unit generates a combined current according to the sensing current during the light sensing period. The control unit generates a first sensed value and a second sensed value according to the combined current.
    Type: Application
    Filed: June 23, 2022
    Publication date: April 20, 2023
    Applicant: Egis Technology Inc.
    Inventors: Jing-Min Chen, Yao-Sheng Hu
  • Publication number: 20230115951
    Abstract: Provided is an electronic device comprising a touch display panel and an integrated chip. The touch display panel comprises a pixel array. The integrated chip is electrically connected to the pixel array. The integrated chip comprises a fingerprint sensing circuit and a display driving circuit. The fingerprint sensing circuit and the display driving circuit are electrically connected to multiple display data lines and sensing data lines through of the same pin. The multiple display data lines are respectively electrically connected to multiple color sub-pixels of the pixel array. The sensing data lines are electrically connected to multiple fingerprint sensing pixels of the pixel array. The multiple color sub-pixels are multiple liquid crystal display pixels.
    Type: Application
    Filed: October 23, 2020
    Publication date: April 13, 2023
    Applicant: Egis Technology Inc.
    Inventors: Yu-Hsuan Lin, Yao-Li Huang, Chung-Yi Wang, Sheng Ruei Hsu
  • Publication number: 20230074241
    Abstract: The present invention provides an electronic device including a display panel, at least one fingerprint sensing module, and at least one optical module. The display panel is adapted to provide an illumination beam to a finger to reflect a sensing beam. The fingerprint sensing module is disposed under the display panel and adapted to receive the sensing beam. The fingerprint sensing module includes a sensing area and a non-sensing area. The optical module is disposed between the display panel and the fingerprint sensing module. The optical module is adapted to transmit the sensing beam to the sensing area. The optical module has a light incidence surface, a light exit surface, and a side surface connected between the light incidence surface and the light exit surface. Both the light incidence surface and the light exit surface are non-planar surfaces, and the side surface is opaque.
    Type: Application
    Filed: October 22, 2020
    Publication date: March 9, 2023
    Applicant: Egis Technology Inc.
    Inventors: Chih-Chung Tu, Po-Jui Liao, Yu-Min Lin
  • Patent number: 11600117
    Abstract: A gesture recognition system and a gesture recognition method are provided. The gesture recognition system includes a fingerprint sensor and a processing circuit. The processing circuit obtains a first fingerprint image and a second fingerprint image through the fingerprint sensor. The processing circuit obtains a plurality of first coordinate parameters of a plurality of first coordinate points in the first fingerprint image, and obtains a plurality of second coordinate parameters of a plurality of second coordinate points in the second fingerprint image. The first coordinate points of the first fingerprint image and the second coordinate points of the second fingerprint image respectively have a plurality of grayscale values corresponding to each other. The processing circuit determines a gesture operation according to the first coordinate parameters and the second coordinate parameters.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: March 7, 2023
    Assignee: Egis Technology Inc.
    Inventors: Chao-Yi Yeh, Kuan-Yi Lin
  • Patent number: 11600097
    Abstract: A fingerprint sensing system including a plurality of micro-lenses, a sensor, a shielding structure and a controller is provided. The micro-lenses are arranged in an array. The sensor has a plurality of sensing pixels arranged in an array. The sensor, the shielding structure and the micro-lenses are sequentially arranged along an arrangement direction. The controller is electrically connected to the sensor. A pitch between the micro-lenses is greater than a pitch between the sensing pixels. The controller forms a fingerprint image according to signals of a plurality of output pixels of the sensor, wherein each of the output pixels is one of every at least four of neighboring sensing pixels. An operation method of a fingerprint sensing system is also provided.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: March 7, 2023
    Assignee: Egis Technology Inc.
    Inventors: Ming-Yuan Cheng, Tang-Hung Po, Yu-Hsuan Lin
  • Patent number: 11586321
    Abstract: An electronic device with fingerprint sensing function including a fingerprint sensing array, multiple fingerprint sensing signal readout lines, multiple touch driving lines, a touch driving circuit, and a read circuit is provided. The fingerprint sensing array includes multiple fingerprint sensing units arranged in array. The fingerprint sensing signal readout lines are respectively coupled to a column of fingerprint sensing units of the fingerprint sensing array. The touch driving lines are respectively interleaved with the fingerprint sensing signal readout lines. The touch driving circuit is coupled to the touch driving lines, and provides multiple touch driving signals to the touch driving lines. The read circuit is coupled to the fingerprint sensing signal readout lines. In response to the touch driving lines outputting the touch driving signals, the read circuit determines a touch position of a touch object based on multiple read signals output by the fingerprint sensing signal readout lines.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: February 21, 2023
    Assignee: Egis Technology Inc.
    Inventors: Chung-Yi Wang, Yu-Hsuan Lin
  • Patent number: 11580776
    Abstract: An under-screen fingerprint sensing device and fingerprint sensing method are provided. The under-screen fingerprint sensing device includes a fingerprint sensor and a processor. The processor performs a first FFC on a first color original value, a second color original value, and a third color original value provided by the fingerprint sensor to determine whether a target object is a real finger. When the processor determines that the target object is an unreal finger, the processor performs a second FFC on the first color original value, the second color original value, and the third color original value to determine again whether the target object is the real finger.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: February 14, 2023
    Assignee: Egis Technology Inc.
    Inventors: Kuan-Yi Lin, Chen Yang, Po-Chiang Hsieh, Pei-Shan Liu
  • Patent number: 11580786
    Abstract: The present disclosure relates to an updating method for configuration parameters of an electronic device, a device and a computer-readable medium, wherein the updating method includes: acquiring fingerprint information collected by a fingerprint sensor at the electronic device; determining whether the fingerprint information is collected in a trusted mode; acquiring, in response to determining that the fingerprint information is collected in the trusted mode, a target configuration parameter of the electronic device for anti-spoofing detection according to the fingerprint information; and updating, in response to that the target configuration parameter of the electronic device and/or a current configuration parameter of the electronic device satisfies a preset condition, the current configuration parameter of the electronic device based on the target configuration parameter of the electronic device, wherein the current configuration parameter is used by the electronic device for anti-spoofing detection of a
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: February 14, 2023
    Assignee: Egis Technology Inc.
    Inventors: Yuan-Lin Chiang, Yu-Chun Cheng
  • Publication number: 20230041756
    Abstract: A signal processing circuit includes a buffer, a first capacitor, a second capacitor, a first switch and a second switch. The buffer includes an input terminal for receiving an external signal and an output terminal for outputting an output signal. The first switch is coupled between the output terminal of the buffer and the first capacitor. The second switch is coupled between the output terminal of the buffer and the second capacitor. The first switch and the second switch are turned on alternately.
    Type: Application
    Filed: August 12, 2020
    Publication date: February 9, 2023
    Applicant: Egis Technology Inc.
    Inventors: Chung-Yi Wang, Yu-Hsuan Lin, Tzu-Li Hung
  • Publication number: 20230039314
    Abstract: The invention provides a fingerprint identification device and a fingerprint identification method. The fingerprint identification device includes: a display; a light source disposed below the display; a sensor disposed below the display; and a processing module coupled to the sensor. When an object contacts the display, the light source emits structured light to scan the object. The sensor obtains one or more images of the object, and the one or more images include information of different phase displacements. The processing module is used for calculating three-dimensional information of the object according to the one or more images and judging whether the object is a real finger or not according to the three-dimensional information.
    Type: Application
    Filed: June 15, 2020
    Publication date: February 9, 2023
    Applicant: Egis Technology Inc.
    Inventors: Chen Yang, Kuan-Yi Lin, Chia-Wei Lin, Yu-Hua Lin