Patents by Inventor Xiaofang GU
Xiaofang GU 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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PHOTOSENSITIVE ARRAY SUBSTRATE, METHOD FOR DRIVING THE SAME, OPTICAL TOUCH SCREEN AND DISPLAY DEVICE
Publication number: 20170102812Abstract: The present disclosure provides a photosensitive array substrate, an optical touch screen including the photosensitive array substrate, and a display device including the optical touch screen. The photosensitive array substrate includes a plurality of gate lines for providing a gate line scanning signal, a plurality of common electrodes, a plurality of touch sensing read lines, and a plurality of photosensitive sensing units coupled to the gate lines, the common electrodes, and the touch sensing read lines for providing corresponding touch sensing control signals over the touch sensing read lines based on an intensity of external light shined on the photosensitive sensing units and controlled by the gate line scanning signal.Type: ApplicationFiled: September 17, 2015Publication date: April 13, 2017Applicants: BOE TECHNOLOGY GROUP CO. LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTDInventor: XIAOFANG GU -
Patent number: 9542900Abstract: A circuit for detecting a touch point location on a touch panel, a touch panel and a display device for improving the precision of touch point location on the touch panel are disclosed. The circuit for detecting a touch point location on a touch panel comprises: a sensing sub-circuit, an amplification sub-circuit connected to the sensing sub-circuit, an output sub-circuit connected to the amplification sub-circuit, a detection sub-circuit connected to the output sub-circuit, and a first touch drive electrode line.Type: GrantFiled: May 7, 2013Date of Patent: January 10, 2017Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Zuquan Hu, Guolei Wang, Xiaofang Gu, Ming Hu
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Patent number: 9529472Abstract: By providing a signal transmitting module and a light-controlled module in a touch circuit, and when a light irradiating the light-controlled module changes caused by a touch region of a panel being touched in a scanning cycle, the light-controlled module controls the signal transmitting module to be in a first state in a next scanning cycle, otherwise controls the signal transmitting module to be in a second state in the next scanning cycle, in the first state, the signal transmitting module can transmit a signal transmitted by the first gate line to a signal line as a touch sensing signal, in the second state, the signal transmitting module is in an off-state, so that a signal transmitting line between the first gate line and the signal line is disconnected.Type: GrantFiled: May 29, 2014Date of Patent: December 27, 2016Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Xiaofang Gu, Ming Hu
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Patent number: 9437146Abstract: Disclosed are a shift register, a gate driver and a display device, which relate the field of display technology and may eliminate the voltage coupled noise generated by a clock signal at an output terminal of the shift register effectively. The shift register comprises: a first input unit, a clock control unit, a second input unit, an inverting unit, a pulling-down unit and a first level selecting unit, a second level selecting unit, a third level selecting unit; the first input unit is connected with a first input signal terminal, the first level selecting unit and the second input unit, respectively, wherein a node at which the first input unit is connected with the second input unit is a pulling-up node, the first input unit is used for controlling a potential at the pulling-up node. The embodiments of the present disclosure may be applied to various display devices.Type: GrantFiled: August 31, 2015Date of Patent: September 6, 2016Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Xiaofang Gu, Rui Ma, Ming Hu
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Publication number: 20160133337Abstract: A shift register unit, a shift register, a gate drive circuit and a display device, the shift register unit, comprising: an input module; an output module configured to output a first clock signal of a first clock signal terminal to an output terminal of the shift register unit according to a potential of the pull-up node at an output phase; a reset module configured to pull down the potentials of the pull-up node and the output terminal of the shift register unit according to a reset signal at a reset phase; and a pull-down module configured to pull down the potentials of the pull-up node and the output terminal according to a second clock signal of a second clock signal terminal at a pull-down phase. Compared to the related art, the structure of the shift register unit provided by the present disclosure is simpler.Type: ApplicationFiled: July 17, 2015Publication date: May 12, 2016Inventor: Xiaofang GU
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Publication number: 20160125847Abstract: Embodiments of the present disclosure provide a GOA unit and a method for driving the same, a GOA circuit and a display device. The embodiments of the preset disclosure relate in particular to the field of display manufacture. The GOA unit specifically comprises: a first node control module and a second node control module, wherein the first node control module is connected to a first control node, an input signal terminal, a first clock signal terminal, and an output signal terminal, wherein the second node control module is connected to a reset signal terminal, a second clock signal terminal, a third clock signal terminal, a first level terminal, the output terminal, and the first control node. The embodiment of the present disclosure may simplify the structure of a GOA circuit and be used for display manufacture.Type: ApplicationFiled: July 16, 2015Publication date: May 5, 2016Inventor: Xiaofang Gu
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Publication number: 20160125954Abstract: The present invention discloses a shift registor and a gate driving device, the shift register comprising: an input module for providing an input signal to a pull-up node; an output module for storing the input signal and providing a first clock signal to an output terminal; a reset module for providing a level signal to the pull-up node; a pull-up module for providing a second clock signal to a pull-down node; a first pull-down module for providing the level signal to the pull-down node; and a second pull-down module for providing the level signal to the pull-up node and providing the level signal to the output terminal.Type: ApplicationFiled: June 19, 2015Publication date: May 5, 2016Inventor: Xiaofang Gu
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Patent number: 9323408Abstract: A touch point positioning and detecting circuit for a touch panel and a touch panel with a display device to achieve an optical type in-cell touch panel. The touch point positioning and detecting circuit comprises a touch sensing sub-circuit, a detecting sub-circuit which is connected with the touch sensing sub-circuit, a first touch driving electrode line and a second touch driving electrode line. The touch sensing sub-circuit comprises a capacitor, a first switch transistor and a second switch transistor. A gate and a source of the first switch transistor are connected with the first touch driving electrode line, and a drain of the first switch transistor is connected with a drain of the second switch transistor. A source of the second switch transistor is connected with the detecting sub-circuit, and a gate of the second switch transistor is connected with the second touch driving electrode line.Type: GrantFiled: April 8, 2013Date of Patent: April 26, 2016Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiaofang Gu, Ming Hu
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Publication number: 20160041643Abstract: A touch substrate includes a base substrate and at least one driving electrode chain and at least one sensing electrode chain each of which is arranged parallel to each other on the base substrate. Each driving electrode chain includes a plurality of driving electrodes which are connected in series, and each sensing electrode chain includes a plurality of sensing electrodes which are connected in series. The driving electrodes and/or the sensing electrodes are made of a metal conductor, and a plurality of light transmissive regions are provided in each of the driving electrodes and/or the sensing electrodes made of the metal conductor. The touch substrate can be touched and controlled normally and can transmit light normally, while the surface resistance of each of the driving electrodes and/or the sensing electrodes therein is decreased greatly. Thus, the power consumption and production cost of the touch substrate is further decreased.Type: ApplicationFiled: May 27, 2014Publication date: February 11, 2016Inventors: Xiaofang GU, Ming HU
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Patent number: 9236022Abstract: According to one aspect of the present invention, the provided is a gate driving circuit, comprising: a first switch control circuit, being configured to be respectively coupled to each of the multiple stages of shift register units; a second switch control circuit, being configured to be respectively coupled to each of the multiple stages of shift register units. The first switch control circuit controls the multiple stages of shift register units to turn on in a forward sequence; the second switch control circuit controls the multiple stages of shift register units to turn on in a backward sequence.Type: GrantFiled: December 5, 2013Date of Patent: January 12, 2016Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Xiaofang Gu, Rui Ma, Ming Hu
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Publication number: 20150371596Abstract: Disclosed are a shift register, a gate driver and a display device, which relate the field of display technology and may eliminate the voltage coupled noise generated by a clock signal at an output terminal of the shift register effectively. The shift register comprises: a first input unit, a clock control unit, a second input unit, an inverting unit, a pulling-down unit and a first level selecting unit, a second level selecting unit, a third level selecting unit; the first input unit is connected with a first input signal terminal, the first level selecting unit and the second input unit, respectively, wherein a node at which the first input unit is connected with the second input unit is a pulling-up node, the first input unit is used for controlling a potential at the pulling-up node. The embodiments of the present disclosure may be applied to various display devices.Type: ApplicationFiled: August 31, 2015Publication date: December 24, 2015Inventors: Xiaofang GU, Rui MA, Ming HU
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Publication number: 20150310817Abstract: A circuit for detecting a touch point location on a touch panel, a touch panel and a display device for improving the precision of touch point location on the touch panel are disclosed. The circuit for detecting a touch point location on a touch panel comprises: a sensing sub-circuit, an amplification sub-circuit connected to the sensing sub-circuit, an output sub-circuit connected to the amplification sub-circuit, a detection sub-circuit connected to the output sub-circuit, and a first touch drive electrode line.Type: ApplicationFiled: May 7, 2013Publication date: October 29, 2015Inventors: Zuquan HU, Guolei WANG, Xiaofang GU, Ming HU
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Publication number: 20150309627Abstract: The present invention discloses a touch panel and a touch display panel, and the touch panel comprises driving lines and sensing lines crossing with each other, and in the extending direction of the driving lines, two line ends of each row/column of the driving lines having the largest distance therebetween are connected with a drive signal input line, and each row/column of the sensing lines is connected with a signal gathering line; and/or, in the extending direction of the sensing lines, two line ends of each row/column of the sensing lines having the largest distance therebetween are connected with a signal gathering line.Type: ApplicationFiled: April 24, 2013Publication date: October 29, 2015Inventors: YUBO XU, XIAOFANG GU, JIUZHAN ZHANG, MING CHEON HU, BYUNG CHEON LIM
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Patent number: 9153342Abstract: Disclosed are a shift register, a gate driver and a display device, which relate the field of display technology and may eliminate the voltage coupled noise generated by a clock signal at an output terminal of the shift register effectively. The shift register comprises: a first input unit, a clock control unit, a second input unit, an inverting unit, a pulling-down unit and a first level selecting unit, a second level selecting unit, a third level selecting unit; the first input unit is connected with a first input signal terminal, the first level selecting unit and the second input unit, respectively, wherein a node at which the first input unit is connected with the second input unit is a pulling-up node, the first input unit is used for controlling a potential at the pulling-up node. The embodiments of the present disclosure may be applied to various display devices.Type: GrantFiled: December 16, 2013Date of Patent: October 6, 2015Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Xiaofang Gu, Rui Ma, Ming Hu
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Publication number: 20150242040Abstract: Provided are a touch circuit and a method for driving the same, an array substrate, a touch display device. By providing a signal transmitting module and a light-controlled module in a touch circuit, and when a light irradiating the light-controlled module changes caused by a touch region of a panel being touched in a scanning cycle, the light-controlled module controls the signal transmitting module to be in a first state in a next scanning cycle, otherwise controls the signal transmitting module to be in a second state in the next scanning cycle, in the first state, the signal transmitting module can transmit a signal transmitted by the first gate line to a signal line as a touch sensing signal, in the second state, the signal transmitting module is in an off-state, so that a signal transmitting line between the first gate line and the signal line is disconnected.Type: ApplicationFiled: May 29, 2014Publication date: August 27, 2015Applicants: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Xiaofang Gu, Ming Hu
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Publication number: 20150243367Abstract: There are provided a shift register unit circuit, a shift register, an array substrate and a display device. The shift register unit circuit comprises: an input module configured to receive an input signal and output the input signal to a pulling-up node; an output module configured to receive the input signal and output a driving signal under a control of a first clock signal; a pulling-down module configured to pull down a potential at the pulling-up node and a signal output terminal under a control of a pulling-down node; a pulling-down control module configured to pull down the pulling-down node under a control of the input signal and pull up the pulling-down node under a control of a second clock signal; and a resetting module configured to reset the potential at the pulling-up node and the signal output terminal under a control of a resetting signal.Type: ApplicationFiled: June 30, 2014Publication date: August 27, 2015Inventors: Xiaofang Gu, Rui Ma, Ming Hu
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Publication number: 20150029421Abstract: A touch point positioning and detecting circuit for a touch panel, a touch panel and a display device, to achieve an optical type in-cell touch panel, The touch point positioning and detecting circuit includes: a touch sensing sub-circuit, a detecting sub-circuit which is connected with the touch sensing sub-circuit, and a first touch driving electrode line and a second touch driving electrode line; the touch sensing sub-circuit includes: a capacitor, a first switch transistor and a second switch transistor; a gate and a source of the first switch transistor are connected with the first touch driving electrode line, and a drain of the first switch transistor is connected with a drain of the second switch transistor; a source of the second switch transistor is connected with the detecting sub-circuit, and a gate of the second switch transistor is connected with the second touch driving electrode line; one end of the capacitor is connected with the drain of the first switch transistor and the other end of the cType: ApplicationFiled: April 8, 2013Publication date: January 29, 2015Inventors: Xiaofang Gu, Ming Hu
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Publication number: 20140168050Abstract: Disclosed are a shift register, a gate driver and a display device, which relate the field of display technology and may eliminate the voltage coupled noise generated by a clock signal at an output terminal of the shift register effectively. The shift register comprises: a first input unit, a clock control unit, a second input unit, an inverting unit, a pulling-down unit and a first level selecting unit, a second level selecting unit, a third level selecting unit; the first input unit is connected with a first input signal terminal, the first level selecting unit and the second input unit, respectively, wherein a node at which the first input unit is connected with the second input unit is a pulling-up node, the first input unit is used for controlling a potential at the pulling-up node. The embodiments of the present disclosure may be applied to various display devices.Type: ApplicationFiled: December 16, 2013Publication date: June 19, 2014Applicants: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiaofang GU, Rui MA, Ming HU
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Publication number: 20140168049Abstract: Provided are a shift register, a gate driver and a display device capable of eliminating voltage coupled noise at an output terminal. The shift register comprises a pulling-up unit, a clock control unit, a resetting unit, an inverting unit and a pulling-down unit; the pulling-up unit is connected with a shift trigging signal terminal, a high level signal terminal and the resetting unit; the clock control unit is connected with the pulling-up node, a clock signal terminal and the pulling-down unit; the resetting unit is connected with a reset signal terminal, a low level signal terminal, the pulling-up node and the output terminal; the inverting unit is connected with the high and low level signal terminals, the pulling-up node and the pulling-down unit; the pulling-down unit is connected with the pulling-up node, the pulling-down node, the low level signal terminal, the shift trigging signal terminal and the output terminal.Type: ApplicationFiled: December 13, 2013Publication date: June 19, 2014Applicants: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiaofang GU, Tong YANG, Rui MA, Ming HU
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Publication number: 20140159999Abstract: According to one aspect of the present invention, the provided is a gate driving circuit, comprising: a first switch control circuit, being configured to be respectively coupled to each of the multiple stages of shift register units; a second switch control circuit, being configured to be respectively coupled to each of the multiple stages of shift register units. The first switch control circuit controls the multiple stages of shift register units to turn on in a forward sequence; the second switch control circuit controls the multiple stages of shift register units to turn on in a backward sequence.Type: ApplicationFiled: December 5, 2013Publication date: June 12, 2014Applicants: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiaofang GU, Rui MA, Ming HU