Patents Assigned to FOCALTECH SYSTEMS CO., LTD.
  • Patent number: 11963427
    Abstract: An in-cell optical fingerprint display device has a substrate, a plurality of pixel units disposed on the substrate and arranged in a matrix, and a transparent cover disposed on the plurality of pixel units. At least one pixel unit includes: a display pixel unit at least has a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit disposed on the substrate; and a fingerprint pixel unit having an optical fingerprint sensor disposed on the substrate, and a specific-color color resin arranged above the optical fingerprint sensor, wherein the specific-color color resin is a blue color resin or a green color resin.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: April 16, 2024
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventor: Po-Sheng Shih
  • Patent number: 11475701
    Abstract: A fingerprint display device has plural pixel rows. Each pixel row of n pixel rows in the plural pixel rows has plural display pixel units and plural fingerprint pixel units, where n is an integer greater than 1. The n pixel rows are driven at least by corresponding n display scan lines and n select lines for performing display and fingerprint detection. Each fingerprint pixel unit has a reset end and a select end. The reset end of the fingerprint pixel unit of i-th pixel row among the n pixel rows is connected to a corresponding display scan line among the n display scan lines, and the select end of the fingerprint pixel unit of i-th pixel row among the n pixel rows is connected to a corresponding select line among the n select lines, where i is an index value between 1 and n.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: October 18, 2022
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventor: Po-Sheng Shih
  • Patent number: 11183096
    Abstract: A driving system of touch display panel includes a panel having an active area, a left gate driving circuit and a right gate driving circuit. The left gate driving circuit is disposed on the left side of the active area, and is connected with a plurality of left gate lines to provide gate driving voltages for performing driving in a scanning direction. The right gate driving circuit is disposed on the right side of the active area, and is connected with a plurality of right gate lines to provide gate driving voltages for performing driving in a scanning direction. The scanning direction in which the left gate driving circuit performs driving is opposite to that in which the right gate driving circuit performs driving.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: November 23, 2021
    Assignee: FocalTech Systems Co., Ltd.
    Inventors: Yi-Chiung Chen, Jui-Lung Hung, Chien-Hao Cheng, Po-Sheng Shih
  • Patent number: 11114011
    Abstract: A display driver circuit for high resolution and high frame rate and a display device using the same are provided. A display driver circuit for high resolution and high frame rate includes a GAMMA output circuit, multiple digital-to-analog converters (DACs), multiple source operation amplifiers and at least a pre-charging circuit. The GAMMA output circuit outputs multiple grayscales of GAMMA voltages. Each DAC receives the GAMMA voltages and provides an output data voltage according to display data. Input terminals of the source operation amplifiers correspondingly coupled to output terminals of the DACs receive the corresponding output data voltages. The pre-charging circuit coupled between the input terminal of at least one of the source operation amplifiers and the output terminal of at least one of the DACs pre-charges the input terminal of the coupled source operation amplifier, so that an output terminal of the coupled source operation amplifier has fast response to the received output data voltage.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: September 7, 2021
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventors: Li-Shen Chang, Chien-Hsien Lin, Ko-Ming Su, Wen-Shian Shie
  • Patent number: 11023071
    Abstract: A driving system of touch display panel includes a panel having an active area and a plurality of touch electrodes, and a gate driving circuit connected with a plurality of gate lines. There is at least one gate line not covered by the touch electrodes among the gate lines disposed in a range constituted by vertically adjacent touch electrodes. The gate line not covered by the touch electrode, at least one gate line previous thereto, and at least one gate line next thereto are selected as the gate lines that influence coupling. When driving the gate lines that influence coupling, the gate driving circuit enables a time difference between an active time of each at least one gate line among the gate lines that influence coupling and an active time of a gate line previous thereto to be greater than a predetermined interval.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: June 1, 2021
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventors: Yi-Chiung Chen, Jui-Lung Hung, Chien-Hao Cheng, Po-Sheng Shih
  • Patent number: 10964259
    Abstract: An AMOLED display driving device is switchable among plural frame rates, and includes a timing control unit, a panel driving unit, and an emission duty ratio control unit. Based on an input frame rate, the timing control unit changes the display time and V-blanking time in the frame period corresponding to the frame rate by extending V-blanking time, so that the display time in the frame period corresponding to the frame rate is equal to a standard display time. Based on the input frame data and frame timing, the panel driving unit drives an AMOLED display panel to display the input frame on the AMOLED display panel according to the changed display time and V-blanking time in the frame period corresponding to the frame rate. During the frame period corresponding to the frame rate, the emission duty ratio control unit applies plural emission pulses to the AMOLED display panel.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: March 30, 2021
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventor: Wen-Chih Chang
  • Patent number: 10312304
    Abstract: An organic light-emitting diode panel and a manufacturing method using the same are provided in the present invention. The OLED panel includes at least a pixel. The pixel includes an anode conducting layer, an insulation layer, an emitting layer (EML), a cathode layer and a reference voltage layer. The anode conducting layer is disposed on a transparent substrate. The insulation layer is disposed on the anode conducting layer and has a first cavity and a second cavity, wherein there is a distance between the first anode layer and the bottom of second cavity. There are a hole injection layer (HIL) and a hole transmission layer (HTL). The HIL is disposed on the first anode conducting layer. The HTL is disposed on the HIL. There are a cathode layer, an electronic injection layer (EIL) and an electronic transmission layer (ETL) in the second cavity. The cathode layer is exposed by the bottom of the second cavity. The EIL is disposed on the cathode layer. The ETL is disposed on the EIL.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: June 4, 2019
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventor: Chun-Fu Wang
  • Patent number: 10152181
    Abstract: A touch display device including a first substrate, a second substrate, a display medium layer, a plurality of pixel electrodes, a plurality of driving electrodes, a plurality of touch sensing electrodes, and a plurality of force-sensing electrodes is provided. The second substrate is opposite to the first substrate. The display medium layer is disposed between the first substrate and the second substrate. The pixel electrodes are disposed on the first substrate. The driving electrodes are disposed on the first substrate and overlap over the pixel electrodes. The touch sensing electrodes are disposed on one of the first substrate and the second substrate. The force-sensing electrodes are disposed on the second substrate, wherein an arrangement direction of the force-sensing electrodes is parallel to an arrangement direction of the touch sensing electrodes. A driving method of the touch display device is also provided.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: December 11, 2018
    Assignee: FOCALTECH SYSTEMS, CO. LTD.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Patent number: 10133380
    Abstract: A touch display device including a first substrate, a second substrate, a display medium layer, a pixel electrode layer, a touch electrode structure, and a force-sensing layer is provided. The second substrate is opposite to the first substrate. The display medium layer is disposed between the first substrate and the second substrate. The pixel electrode layer is disposed between the display medium layer and the first substrate. The touch electrode structure is disposed on the second substrate and includes a driving electrode layer and a touch-sensing layer. The force-sensing layer is disposed on the first substrate, and a variable gap exists between the force-sensing layer and the driving electrode layer. A driving method of the touch display device is also provided.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: November 20, 2018
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Patent number: 10116225
    Abstract: A gate line drive circuit includes first, second and third transistors, and a boosting capacitor. The first transistor has a control terminal connected to a charge/discharge control signal of a previous-stage gate line drive circuit, a first terminal, and a second terminal connected to a control node. The second transistor has a control terminal connected to the control node, a first terminal, and a second terminal connected to a first timing signal. The third transistor has a control terminal connected to the control node, a first terminal, and a second terminal connected to a second timing signal. The boosting capacitor has one terminal connected to the control node, and the other terminal connected to the first terminal of the third transistor and a control terminal of a first transistor of a next-stage gate line drive circuit. The first terminal of the second transistor is connected to a gate line.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: October 30, 2018
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventor: Pi-Chun Yeh
  • Patent number: 10108302
    Abstract: A touch driving system with low display noise comprises a TFT layer having a plurality of display elements for display based on a display driving signal and a display pixel signal; and a touch detection device for detecting if an external object has approached based on a touch driving signal. In a first time period of a display frame, a touch and display control subsystem provides the display driving signal, the display pixel signal, and the touch driving signal to display and perform touch detection simultaneously. In the first time period, the display pixel signal is a constant signal. In a second time period of the display frame, the touch and display control subsystem only provides the display driving signal and the display pixel signal to display.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: October 23, 2018
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventor: Chien-Ying Huang
  • Patent number: 10067622
    Abstract: An electronic device and a single-layer mutual-capacitance touch screen are provided. The touch screen includes multiple sensing electrode groups disposed in a first direction in parallel, multiple bonding pads, multiple first lead wires and multiple second lead wires. The sensing electrode group includes a first unit including multiple first electrodes and a second unit including multiple electrode pairs. The electrode pair includes a second electrode at a first side of the first unit and a third electrode at a second side of the first unit. The first lead wires and the second lead wires connect the first electrodes and the electrode pairs with corresponding bonding pads respectively. In any two adjacent electrode pairs, adjacent ends of both two second electrodes and two third electrodes are opposite to the first electrode in the first direction.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: September 4, 2018
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventors: Weijing Hou, Hui Liu, Chao Chen
  • Patent number: 10067605
    Abstract: In a driving method for reducing display interference in in-cell multi-touch panel, a display driving signal is provided to K gate lines and a display image signal is provided to L source lines so as to drive corresponding transistors and capacitors in a display frame for displaying an image. The method also provides a touch driving signal to N touch driving lines and receives touch signals from M sensing lines to thereby detect one or more touch point positions of an external object in a touch frame based on the touch driving signal. In each touch frame, a sequence of providing the touch driving signal to N touch driving lines is different.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: September 4, 2018
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventors: Hsin-Mao Huang, Pei-Chang Ho, Szu-Mien Wang
  • Patent number: 10038036
    Abstract: An organic light-emitting diode panel and a manufacturing method using the same are provided in the present invention. The OLED panel includes at least a pixel. The pixel includes an anode conducting layer, an insulation layer, an emitting layer (EML), a cathode layer and a reference voltage layer. The anode conducting layer is disposed on a transparent substrate. The insulation layer is disposed on the anode conducting layer and has a first cavity and a second cavity, wherein there is a distance between the first anode layer and the bottom of second cavity. There are a hole injection layer (HIL) and a hole transmission layer (HTL). The HIL is disposed on the first anode conducting layer. The HTL is disposed on the HIL. There are a cathode layer, an electronic injection layer (EIL) and an electronic transmission layer (ETL) in the second cavity. The cathode layer is exposed by the bottom of the second cavity. The EIL is disposed on the cathode layer. The ETL is disposed on the EIL.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: July 31, 2018
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventor: Chun-Fu Wang
  • Patent number: 10013126
    Abstract: An electronic apparatus and a single-layer multi-point mutual capacitive touch screen thereof are disclosed.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: July 3, 2018
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventors: Weijing Hou, Hui Liu, Chao Chen
  • Patent number: 9977550
    Abstract: An active one-layer multi-touch sensor panel device includes a one-layer multi-touch sensor panel, a die of touch controller IC, and a flexible printed circuit board. The one-layer multi-touch sensor panel has a plurality of conductive lines for forming a plurality of touch sensing areas thereon. The die of touch controller IC is bonded onto the one-layer multi-touch sensor panel by a chip-on-glass method. The die of touch controller IC is connected to the plurality of conductive lines to drive the plurality of conductive lines and receive sensing signals associated with the plurality of conductive lines for detecting touch positions on the one-layer multi-touch sensor panel. The flexible printed circuit board is electrically connected to the die of touch controller IC by the one-layer multi-touch sensor panel to transmit the sensing signals received.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: May 22, 2018
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventor: Yen-Lin Huang
  • Publication number: 20180046276
    Abstract: An electronic apparatus and a single-layer multi-point mutual capacitive touch screen thereof are disclosed.
    Type: Application
    Filed: August 11, 2016
    Publication date: February 15, 2018
    Applicant: FOCALTECH SYSTEMS CO., LTD.
    Inventors: Weijing HOU, Hui LIU, Chao CHEN
  • Patent number: 9883188
    Abstract: An image compression system includes a register, a sensitive detection device, a prediction difference device, a bit-rate control device, a mapping device, and an encoding device, The register temporarily stores plural pixels, which have a current encoding pixel and plural historical decoded pixels. The sensitive detection device analyzes contents of the historical decoded pixels or a previous history data to calculate a prediction value and a current history data. The prediction difference device subtracts the prediction value from the current encoding pixel to generate a prediction difference value. The bit-rate control device adjusts a compression ratio according to a final bits signal so as to output a suggestion bits signal. The mapping device outputs an index based on the prediction difference value, the current history data, and the suggestion bits signal. The encoding device encodes the index to output a bit stream and the final bits signal.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: January 30, 2018
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventors: Cheng-Pin Huang, Ya-Chen Huang
  • Patent number: 9874970
    Abstract: A touch display device including a first substrate, a second substrate, a display medium layer, a pixel array structure and a pressure sensing electrode layer is provided. The display medium layer is disposed between the first substrate and the second substrate. The pixel array structure is disposed between the second substrate and the display medium layer and includes a plurality of pixel electrodes and a multi-function electrode layer overlapping the pixel electrodes. The pressure sensing electrode layer is parallel to the multi-function electrode layer and a changeable gap is formed between the pressure sensing electrode layer and the multi-function electrode layer. The touch display device capable of 3D touch is provided.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: January 23, 2018
    Assignee: FOCALTECH SYSTEMS, CO. LTD.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Patent number: 9798416
    Abstract: A touch display device including a pixel array substrate, an opposite substrate, and a display medium layer is provided. The pixel array substrate includes a first substrate and a plurality of sensing electrodes. The first substrate has a plurality of sub-pixel areas arranged in array. The sensing electrodes are disposed on the first substrate and electrically insulated to each other, wherein at least portion of the sensing electrodes cover a number of the sub-pixel areas, respectively. The opposite substrate is opposite to the pixel array substrate and includes a second substrate and a pressure sensing layer. The pressure sensing layer is disposed on a surface of the second substrate facing the pixel array substrate. The display medium layer is located between the sensing electrodes and the pressure sensing layer. A driving method and a pressure detection method of the touch display device are also provided.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: October 24, 2017
    Assignee: Focaltech Systems Co., Ltd.
    Inventors: Pei-Hung Hsiao, Yao-Hung Lai