Patents by Inventor Jian-Shen Yu
Jian-Shen Yu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220276097Abstract: An optical sensor circuit is provided. In the optical sensor circuit, an output stage circuit transmits a voltage of first and second node to the output line according to a first driving signal. A first sensor is configured to generate a first photocurrent according to a first color light that senses an ambient light, and generate a second photocurrent according to a second color light. A second sensor is configured to generate a third photocurrent according to a third color light, and generate a fourth photocurrent according to the second color light. In a sensing phase, when the first sensor senses the first color light, and the second sensor senses the third color light, the first sensor adjusts a voltage level of the voltage according to the first photocurrent, and the second sensor adjusts the voltage level of the voltage according to the third photocurrent.Type: ApplicationFiled: May 11, 2022Publication date: September 1, 2022Applicants: Au Optronics Corporation, National Cheng-Kung UniversityInventors: Chih-Lung Lin, Chia-En Wu, Chia-Lun Lee, Jui-Hung Chang, Jian-Shen Yu
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Patent number: 11371885Abstract: An optical sensor circuit is provided. In the optical sensor circuit, an output stage circuit transmits a voltage of first and second node to the output line according to a first driving signal. A first sensor is configured to generate a first photocurrent according to a first color light that senses an ambient light, and generate a second photocurrent according to a second color light. A second sensor is configured to generate a third photocurrent according to a third color light, and generate a fourth photocurrent according to the second color light. In a sensing phase, when the first sensor senses the first color light, and the second sensor senses the third color light, the first sensor adjusts a voltage level of the voltage according to the first photocurrent, and the second sensor adjusts the voltage level of the voltage according to the third photocurrent.Type: GrantFiled: October 7, 2019Date of Patent: June 28, 2022Assignees: Au Optronics Corporation, National Cheng-Kung UniversityInventors: Chih-Lung Lin, Chia-En Wu, Chia-Lun Lee, Jui-Hung Chang, Jian-Shen Yu
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Patent number: 11035724Abstract: An optical sensing circuit includes a first light sensor, a second light sensor, a third light sensor, a capacitor, and a sampling circuit. The first light sensor, the second light sensor, and the third light sensor are respectively covered by a first color filter, a second color filter, and a third color filter. The first light sensor is coupled to the capacitor, the sampling circuit, and the third light sensor. The second light sensor is coupled to the first light sensor and is configured to receive a first sensing signal. The third light sensor is coupled between the first light sensor and a voltage source.Type: GrantFiled: October 2, 2019Date of Patent: June 15, 2021Assignees: AU OPTRONICS CORPORATION, NATIONAL CHENG KUNG UNIVERSITYInventors: Chih-Lung Lin, Fu-Hsing Chen, Chia-Lun Lee, Chia-En Wu, Jian-Shen Yu
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Publication number: 20200410947Abstract: A display device driving method is provided, which is applicable to a display device including pixel circuits coupled with a first node point, a source driving circuit for providing a data signal, and a reading circuit. The display device driving method includes operations: coupling the first node point with the source driving circuit or the reading circuit; supplying first control signals to the pixel circuits, where the first control signals sequentially provide a first impulse so that the pixel circuits sequentially receive the data signal from the first node point; supplying second control signals to optical sensing circuits, where the second control signals sequentially provide a second impulse so that the optical sensing circuits sequentially output a sensing signal to the first node point; amplifying the sensing signals and outputting the amplified sensing signals by the reading circuit, where durations of the first impulses the second impulses are not overlapped.Type: ApplicationFiled: September 11, 2020Publication date: December 31, 2020Inventors: Chia-Che HUNG, Mao-Hsun CHENG, Jian-Shen YU
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Patent number: 10810957Abstract: A display device driving method, applicable to a display device including a pixel circuit coupled with a first node point, a source driving circuit for providing a data signal, and a reading circuit, including following operations: coupling the first node point with the source driving circuit or the reading circuit; supplying a first control signal to the pixel circuit, wherein the first control signal is for enabling the pixel circuit to receive the data signal from the first node point; supplying a second control signal to an optical sensing circuit, wherein the second control signal is for enabling the optical sensing circuit to output a sensing signal to the reading circuit through the first node point; utilizing the reading circuit to amplify the sensing signal and output the amplified sensing signal, wherein duration of the second impulse overlaps with duration of the first impulse.Type: GrantFiled: January 31, 2019Date of Patent: October 20, 2020Assignee: AU OPTRONICS CORPORATIONInventors: Chia-Che Hung, Mao-Hsun Cheng, Jian-Shen Yu
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Publication number: 20200158567Abstract: An optical sensing circuit includes a first light sensor, a second light sensor, a third light sensor, a capacitor, and a sampling circuit. The first light sensor, the second light sensor, and the third light sensor are respectively covered by a first color filter, a second color filter, and a third color filter. The first light sensor is coupled to the capacitor, the sampling circuit, and the third light sensor. The second light sensor is coupled to the first light sensor and is configured to receive a first sensing signal. The third light sensor is coupled between the first light sensor and a voltage source.Type: ApplicationFiled: October 2, 2019Publication date: May 21, 2020Inventors: Chih-Lung LIN, Fu-Hsing CHEN, Chia-Lun LEE, Chia-En WU, Jian-Shen YU
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Publication number: 20200158574Abstract: An optical sensor circuit is provided. In the optical sensor circuit, an output stage circuit transmits a voltage of first and second node to the output line according to a first driving signal. A first sensor is configured to generate a first photocurrent according to a first color light that senses an ambient light, and generate a second photocurrent according to a second color light. A second sensor is configured to generate a third photocurrent according to a third color light, and generate a fourth photocurrent according to the second color light. In a sensing phase, when the first sensor senses the first color light, and the second sensor senses the third color light, the first sensor adjusts a voltage level of the voltage according to the first photocurrent, and the second sensor adjusts the voltage level of the voltage according to the third photocurrent.Type: ApplicationFiled: October 7, 2019Publication date: May 21, 2020Applicants: Au Optronics Corporation, National Cheng-Kung UniversityInventors: Chih-Lung Lin, Chia-En Wu, Chia-Lun Lee, Jui-Hung Chang, Jian-Shen Yu
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Publication number: 20200090607Abstract: A display device driving method, applicable to a display device including a pixel circuit coupled with a first node point, a source driving circuit for providing a data signal, and a reading circuit, including following operations: coupling the first node point with the source driving circuit or the reading circuit; supplying a first control signal to the pixel circuit, wherein the first control signal is for enabling the pixel circuit to receive the data signal from the first node point; supplying a second control signal to an optical sensing circuit, wherein the second control signal is for enabling the optical sensing circuit to output a sensing signal to the reading circuit through the first node point; utilizing the reading circuit to amplify the sensing signal and output the amplified sensing signal, wherein duration of the second impulse overlaps with duration of the first impulse.Type: ApplicationFiled: January 31, 2019Publication date: March 19, 2020Inventors: Chia-Che HUNG, Mao-Hsun CHENG, Jian-Shen YU
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Patent number: 10175098Abstract: An optical sensing circuit has a plurality of optical sensing units arranged so that the optical sensing circuit is ambient light insensitive or sensitive to light within certain spectrum. The sensitive spectra corresponding to the plurality of optical sensing units are different from one another.Type: GrantFiled: March 6, 2017Date of Patent: January 8, 2019Assignee: AU OPTRONICS CORPORATIONInventors: Chih-Lung Lin, Chia-En Wu, Po-Syun Chen, Fu-Hsing Chen, Ming-Xun Wang, Ching-En Lee, Po-Cheng Lai, Jian-Shen Yu
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Patent number: 9990893Abstract: A pixel circuit includes a first capacitor whose two terminals are coupled to a first node and a ground end respectively, a first switch whose two terminals are coupled to a second node and a fourth node respectively, a liquid crystal, a second switch, a pull-up circuit, a pull-down circuit, a second capacitor and a third switch. The first switch is coupled to the first node and a first data input end. The liquid crystal is coupled to the second and a third node. The second switch is coupled to the second node and a second data input end. The pull-up circuit is coupled to the first node and the second node and a node of a high voltage. The pull-down circuit is coupled to the second node, the fourth node and the ground end. The third switch is coupled to the fourth node and the ground end.Type: GrantFiled: February 1, 2016Date of Patent: June 5, 2018Assignee: AU OPTRONICS CORP.Inventors: Chih-Lung Lin, Jian-Shen Yu, Fu-Hsing Chen, Chia-Che Hung, Ze-yu Yen
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Publication number: 20170276541Abstract: An optical sensing circuit has a plurality of optical sensing units arranged so that the optical sensing circuit is ambient light insensitive or sensitive to light within certain spectrum. The sensitive spectra corresponding to the plurality of optical sensing units are different from one another.Type: ApplicationFiled: March 6, 2017Publication date: September 28, 2017Inventors: Chih-Lung LIN, Chia-En WU, Po-Syun CHEN, Fu-Hsing CHEN, Ming-Xun WANG, Ching-En LEE, Po-Cheng LAI, Jian-Shen YU
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Patent number: 9631975Abstract: An optical sensor circuit includes a capacitor, a first transistor, a second transistor, a third transistor, a fourth transistor, and a fifth transistor. The capacitor includes a first terminal and a second terminal. Each transistor includes a first terminal, a control terminal, and a second terminal. The second terminal of the capacitor is coupled to a reference voltage terminal. The first terminals of the third transistor and the fourth transistor are coupled to a first voltage terminal. The second terminal of the fifth transistor is coupled to a readout line.Type: GrantFiled: July 16, 2015Date of Patent: April 25, 2017Assignee: AU OPTRONICS CORP.Inventors: Jian-Shen Yu, Wei-Chih Hsu
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Publication number: 20170053611Abstract: A pixel circuit includes a first capacitor whose two terminals are coupled to a first node and a ground end respectively, a first switch whose two terminals are coupled to a second node and a fourth node respectively, a liquid crystal, a second switch, a pull-up circuit, a pull-down circuit, a second capacitor and a third switch. The first switch is coupled to the first node and a first data input end. The liquid crystal is coupled to the second and a third node. The second switch is coupled to the second node and a second data input end. The pull-up circuit is coupled to the first node and the second node and a node of a high voltage. The pull-down circuit is coupled to the second node, the fourth node and the ground end. The third switch is coupled to the fourth node and the ground end.Type: ApplicationFiled: February 1, 2016Publication date: February 23, 2017Inventors: Chih-Lung LIN, Jian-Shen YU, Fu-Hsing CHEN, Chia-Che HUNG, Ze-yu YEN
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Publication number: 20170031219Abstract: A liquid-crystal pixel unit includes a storage capacitor, a liquid-crystal capacitor, a data writing circuit, and a source-follower type output circuit. The storage capacitor includes a first electrode and a second electrode. The second electrode is configured to receive a first reference voltage. The liquid-crystal capacitor includes a third electrode and a fourth electrode. The fourth electrode is configured to receive a second reference voltage. The data writing circuit is electrically connected to the first electrode and the third electrode. The data writing circuit is controlled by a control signal to charge a data voltage into the storage capacitor and the liquid-crystal capacitor. The source-follower type output circuit includes an input terminal and an output terminal. The input terminal is electrically connected to the first electrode. The output terminal is electrically connected to the third electrode.Type: ApplicationFiled: March 29, 2016Publication date: February 2, 2017Inventors: Chih-Lung Lin, Jian-Shen Yu, Chia-En Wu, Chia-Che Hung
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Patent number: 9489087Abstract: A liquid crystal display having photo-sensing input mechanism includes a first gate line for transmitting a first gate signal, a second gate line for transmitting a second gate signal, a data line for transmitting a data signal, a pixel unit for outputting an image signal according to the first gate signal and the data signal, a readout line for transmitting a readout signal, a photo-sensing input unit and a driving adjustment unit. The photo-sensing input unit is utilized for generating a sensing voltage according to a driving voltage and an incident light signal, and is further utilized for outputting the readout signal according to the sensing voltage and the first gate signal. The driving adjustment unit is employed to provide the driving voltage according to the second gate signal and the incident light signal.Type: GrantFiled: January 29, 2016Date of Patent: November 8, 2016Assignee: AU OPTRONICS CORP.Inventors: Pei-Yi Chen, Hsueh-Ying Huang, Jian-Shen Yu
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Publication number: 20160147329Abstract: A liquid crystal display having photo-sensing input mechanism includes a first gate line for transmitting a first gate signal, a second gate line for transmitting a second gate signal, a data line for transmitting a data signal, a pixel unit for outputting an image signal according to the first gate signal and the data signal, a readout line for transmitting a readout signal, a photo-sensing input unit and a driving adjustment unit. The photo-sensing input unit is utilized for generating a sensing voltage according to a driving voltage and an incident light signal, and is further utilized for outputting the readout signal according to the sensing voltage and the first gate signal. The driving adjustment unit is employed to provide the driving voltage according to the second gate signal and the incident light signal.Type: ApplicationFiled: January 29, 2016Publication date: May 26, 2016Inventors: Pei-Yi Chen, Hsueh-Ying Huang, Jian-Shen Yu
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Patent number: 9285917Abstract: A liquid crystal display having photo-sensing input mechanism includes a first gate line for transmitting a first gate signal, a second gate line for transmitting a second gate signal, a data line for transmitting a data signal, a pixel unit for outputting an image signal according to the first gate signal and the data signal, a readout line for transmitting a readout signal, a photo-sensing input unit and a driving adjustment unit. The photo-sensing input unit is utilized for generating a sensing voltage according to a driving voltage and an incident light signal, and is further utilized for outputting the readout signal according to the sensing voltage and the first gate signal. The driving adjustment unit is employed to provide the driving voltage according to the second gate signal and the incident light signal.Type: GrantFiled: October 20, 2014Date of Patent: March 15, 2016Assignee: AU Optronics Corp.Inventors: Pei-Yi Chen, Hsueh-Ying Huang, Jian-Shen Yu
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Publication number: 20160020337Abstract: An optical sensor circuit includes a capacitor, a first transistor, a second transistor, a third transistor, a fourth transistor, and a fifth transistor. The capacitor includes a first terminal and a second terminal. Each transistor includes a first terminal, a control terminal, and a second terminal. The second terminal of the capacitor is coupled to a reference voltage terminal. The first terminals of the third transistor and the fourth transistor are coupled to a first voltage terminal. The second terminal of the fifth transistor is coupled to a readout line.Type: ApplicationFiled: July 16, 2015Publication date: January 21, 2016Inventors: Jian-Shen Yu, Wei-Chih Hsu
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Publication number: 20150035805Abstract: A liquid crystal display having photo-sensing input mechanism includes a first gate line for transmitting a first gate signal, a second gate line for transmitting a second gate signal, a data line for transmitting a data signal, a pixel unit for outputting an image signal according to the first gate signal and the data signal, a readout line for transmitting a readout signal, a photo-sensing input unit and a driving adjustment unit. The photo-sensing input unit is utilized for generating a sensing voltage according to a driving voltage and an incident light signal, and is further utilized for outputting the readout signal according to the sensing voltage and the first gate signal. The driving adjustment unit is employed to provide the driving voltage according to the second gate signal and the incident light signal.Type: ApplicationFiled: October 20, 2014Publication date: February 5, 2015Inventors: Pei-Yi Chen, Hsueh-Ying Huang, Jian-Shen Yu
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Patent number: 8890783Abstract: A liquid crystal display having photo-sensing input mechanism includes a first gate line for transmitting a first gate signal, a second gate line for transmitting a second gate signal, a data line for transmitting a data signal, a pixel unit for outputting an image signal according to the first gate signal and the data signal, a readout line for transmitting a readout signal, a photo-sensing input unit and a driving adjustment unit. The photo-sensing input unit is utilized for generating a sensing voltage according to a driving voltage and an incident light signal, and is further utilized for outputting the readout signal according to the sensing voltage and the first gate signal. The driving adjustment unit is employed to provide the driving voltage according to the second gate signal and the incident light signal.Type: GrantFiled: January 10, 2012Date of Patent: November 18, 2014Assignee: AU Optronics Corp.Inventors: Pei-Yi Chen, Hsueh-Ying Huang, Jian-Shen Yu