Patents by Inventor Panhua WANG
Panhua WANG 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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Patent number: 10416812Abstract: Embodiments of the invention provide display substrate, method for testing the same and display apparatus. The display substrate includes pixel regions arranged in matrix and test unit, each pixel region being provided with first electrode, wherein the test unit includes at least two test sub-units; first electrodes provided in adjacent pixel regions correspond to electrode block, and electrode blocks are electrically isolated from each other and divided, in accordance with their positions, into at least two test groups whose number is the same as that of the test sub-units; the electrode blocks of a same test group are provided spaced apart from each other in both row and column directions, and all the electrode blocks in the same test group are connected to one test sub-unit. The test unit can accurately test open or short defect existing in the display substrate, thereby improving test accuracy and lowering production costs.Type: GrantFiled: March 25, 2016Date of Patent: September 17, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yanchen Li, Panhua Wang
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Patent number: 10235554Abstract: The present disclosure provides an organic light-emitting diode (OLED) display substrate. The OLED display substrate includes a plurality of pixel regions for displaying images; and a plurality of image recognition regions for recognizing a pattern of a light-reflecting surface structure, each image recognition region including a photoresistor.Type: GrantFiled: May 20, 2016Date of Patent: March 19, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Shengji Yang, Xue Dong, Panhua Wang, Hailin Xue, Xiaochuan Chen, Haisheng Wang, Weijie Zhao, Yingming Liu
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Patent number: 10204567Abstract: The invention provides a backlight and a display device, the backlight includes multiple backlight scanning lines and multiple backlight data lines, which are provided in different layers and are intersected with each other to divide the backlight into a plurality of light-emitting units, each of which is provided with one light-emitting diode and a light-emitting circuit for driving the light-emitting diode to emit light, the light-emitting circuits for a same row of light-emitting units are electrically connected to a corresponding backlight scanning line, the light-emitting circuits for a same column of light-emitting units are electrically connected to a corresponding backlight data line, the backlight scanning line is configured for providing a scanning signal to the light-emitting circuit, and the backlight data line is configured for providing a gray scale signal to the light-emitting circuit to control brightness of the light-emitting unit.Type: GrantFiled: July 1, 2016Date of Patent: February 12, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Shengji Yang, Xiaochuan Chen, Panhua Wang, Xue Dong, Hailin Xue, Haisheng Wang, Yingming Liu
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Patent number: 10203553Abstract: Disclosed is a backlight module which includes a plurality of light-emitting devices arranged in an array of multiple rows and multiple columns. Each row of light-emitting devices include a plurality of first light-emitting devices for emitting red light, a plurality of second light-emitting devices for emitting green light and a plurality of third light-emitting devices for emitting blue light. The first light-emitting device, the second light-emitting devices and the third light-emitting devices in each row of light-emitting devices are driven to sequentially emit light based on respective data signals in a light-emitting phase. Further disclosed are a method of driving the backlight module and a display device.Type: GrantFiled: June 30, 2016Date of Patent: February 12, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Shengji Yang, Xiaochuan Chen, Panhua Wang, Xue Dong, Hailin Xue, Haisheng Wang, Weijie Zhao
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Patent number: 10133429Abstract: The present disclosure discloses a self-capacitive touch display panel and a display device, comprising: a substrate, and a plurality of top-emitting type organic electroluminescent structures disposed on the substrate and sharing one cathode. The self-capacitive touch display panel further comprises: a plurality of self-capacitive touch electrodes disposed at the same layer, positioned above the cathode and insulated with the cathode; a plurality of touch leads electrically connected with the plurality of self-capacitive touch electrodes; and a touch detection circuit, configured to determine a touch position by detecting the change of the capacitance values of the self-capacitive touch electrodes during a touch phase. The self-capacitive touch electrodes are connected with the touch detection circuit by way of the respective touch leads.Type: GrantFiled: March 31, 2016Date of Patent: November 20, 2018Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.Inventors: Yingming Liu, Xue Dong, Panhua Wang, Haisheng Wang, Xiaochuan Chen, Shengji Yang, Xiaoliang Ding, Ziwei Cui, Yanyan Yin, Jun Fan, Jiantao Liu
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Patent number: 10013090Abstract: Embodiments of the invention disclose a self-capacitance touch display panel, a display device comprising the self-capacitance touch display panel, and a method of driving the self-capacitance touch display panel, so as to increase aperture opening ratio and transmissivity of pixels of the self-capacitance touch display panel. The self-capacitance touch display panel comprises an array substrate and a color filter substrate that are disposed to face one another, the array substrate comprising a common electrode disposed on a base substrate, the common electrode being configured to double as a plurality of touch electrodes, each touch electrode being electrically connected with a touch electrode wire. The touch electrode wire is configured to double as a common electrode wire.Type: GrantFiled: August 3, 2016Date of Patent: July 3, 2018Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yanchen Li, Shuai Han, Panhua Wang
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Patent number: 9997111Abstract: The present disclosure discloses a circuit and method for generating a light emission control signal for an AMOLED pixel circuit having in-cell touch sensors, as well as a pixel circuit driving method. The circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor and a first capacitor. Under control of a control signal transferred by a first control line, a first clock signal, a second clock signal, a voltage of a first level, a voltage of a second level and a control signal transferred by a second control line, the circuit outputs the desired light emission control signal via a light emission control line. The light emission control signal may turn off the OLED in the pixel circuit during a touch sense phase such that an influence of the capacitance between the anode and cathode of the OLED on the touch sensor-to-ground capacitance is reduced.Type: GrantFiled: December 11, 2015Date of Patent: June 12, 2018Assignees: BOE TECHNOLOGY GROUP., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Shengji Yang, Xue Dong, Panhua Wang, Hailin Xue, Xiaochuan Chen, Haisheng Wang, Hongjuan Liu, Weijie Zhao, Chunlei Wang, Wei Li, Yingming Liu
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Patent number: 9997574Abstract: The present disclosure provides an organic light-emitting diode (OLED) display substrate. The OLED display substrate includes a substrate and a plurality of organic light-emitting diode units. An organic light-emitting diode unit includes a first layer having an anode and a first electrode apart from the anode; an organic light-emitting layer; a cathode; and a second electrode insulated from the cathode. The anode and the cathode are configured to drive the organic light-emitting layer to emit light; and the first electrode and the second electrode are configured to recognize touch patterns.Type: GrantFiled: May 20, 2016Date of Patent: June 12, 2018Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELEVTRONICS TECHNOLOGY CO., LTD.Inventors: Shengji Yang, Xue Dong, Panhua Wang, Hailin Xue, Xiaochuan Chen, Haisheng Wang, Yingming Liu, Weijie Zhao
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Patent number: 9966010Abstract: Provided are a driving circuit and a driving method thereof, a touch display panel, and a touch display device. The first input terminal of the delay unit is connected to corresponding previous gate driver, the first output terminal of the delay unit is connected to corresponding subsequent gate driver. The delay unit outputs a starting signal to the subsequent gate driver for enabling it after a predetermined time elapses since the previous gate driver outputs a driving signal. The delay unit achieves shift registering between the previous gate driver and the subsequent gate driver, to form a touch-control time period after the previous gate driver outputs a driving signal and before the subsequent gate driver is enabled, so as to ensure that the touch display panel can also achieve a touch-control function with high precision on the premise of achieving a display function of high resolution.Type: GrantFiled: March 24, 2016Date of Patent: May 8, 2018Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.Inventors: Shengji Yang, Xue Dong, Panhua Wang, Hailin Xue, Xiaochuan Chen, Haisheng Wang, Xi Chen, Jianyun Xie, Yingming Liu, Weijie Zhao, Hongjuan Liu
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Publication number: 20170330516Abstract: Provided are a driving circuit and a driving method thereof, a touch display panel, and a touch display device. The first input terminal of the delay unit is connected to corresponding previous gate driver, the first output terminal of the delay unit is connected to corresponding subsequent gate driver. The delay unit outputs a starting signal to the subsequent gate driver for enabling it after a predetermined time elapses since the previous gate driver outputs a driving signal. The delay unit achieves shift registering between the previous gate driver and the subsequent gate driver, to form a touch-control time period after the previous gate driver outputs a driving signal and before the subsequent gate driver is enabled, so as to ensure that the touch display panel can also achieve a touch-control function with high precision on the premise of achieving a display function of high resolution.Type: ApplicationFiled: March 24, 2016Publication date: November 16, 2017Applicants: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.Inventors: Shengji Yang, Xue Dong, Panhua Wang, Hailin Xue, Xiaochuan Chen, Haisheng Wang, Xi Chen, Jianyun Xie, Yingming Liu, Weijie Zhao, Hongjuan Liu
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Publication number: 20170316740Abstract: The present disclosure discloses a circuit and method for generating a light emission control signal for an AMOLED pixel circuit having in-cell touch sensors, as well as a pixel circuit driving method. The circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor and a first capacitor. Under control of a control signal transferred by a first control line, a first clock signal, a second clock signal, a voltage of a first level, a voltage of a second level and a control signal transferred by a second control line, the circuit outputs the desired light emission control signal via a light emission control line. The light emission control signal may turn off the OLED in the pixel circuit during a touch sense phase such that an influence of the capacitance between the anode and cathode of the OLED on the touch sensor-to-ground capacitance is reduced.Type: ApplicationFiled: December 11, 2015Publication date: November 2, 2017Inventors: Shengji YANG, Xue DONG, Panhua WANG, Hailin XUE, Xiaochuan CHEN, Haisheng WANG, Hongjuan LIU, Weijie ZHAO, Chunlei WANG, Wei LI, Yingming LIU
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Publication number: 20170221972Abstract: The present disclosure provides an organic light-emitting diode (OLED) display substrate. The OLED display substrate includes a substrate and a plurality of organic light-emitting diode units. An organic light-emitting diode unit includes a first layer having an anode and a first electrode apart from the anode; an organic light-emitting layer; a cathode; and a second electrode insulated from the cathode. The anode and the cathode are configured to drive the organic light-emitting layer to emit light; and the first electrode and the second electrode are configured to recognize touch patterns.Type: ApplicationFiled: May 20, 2016Publication date: August 3, 2017Applicants: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELEVTRONICS TECHNOLOGY CO., LTD.Inventors: Shengji YANG, Xue DONG, Panhua WANG, Hailin XUE, Xiaochuan CHEN, Haisheng WANG, Yingming LIU, Weijie ZHAO
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Publication number: 20170220839Abstract: The present disclosure provides an organic light-emitting diode (OLED) display substrate. The OLED display substrate includes a plurality of pixel regions for displaying images; and a plurality of image recognition regions for recognizing a pattern of a light-reflecting surface structure, each image recognition region including a photoresistor.Type: ApplicationFiled: May 20, 2016Publication date: August 3, 2017Inventors: Shengji YANG, Xue DONG, Panhua WANG, Hailin XUE, Xiaochuan CHEN, Haisheng WANG, Weijie ZHAO, Yingming LIU
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Publication number: 20170205956Abstract: Embodiments of the invention provide display substrate, method for testing the same and display apparatus. The display substrate includes pixel regions arranged in matrix and test unit, each pixel region being provided with first electrode, wherein the test unit includes at least two test sub-units; first electrodes provided in adjacent pixel regions correspond to electrode block, and electrode blocks are electrically isolated from each other and divided, in accordance with their positions, into at least two test groups whose number is the same as that of the test sub-units; the electrode blocks of a same test group are provided spaced apart from each other in both row and column directions, and all the electrode blocks in the same test group are connected to one test sub-unit. The test unit can accurately test open or short defect existing in the display substrate, thereby improving test accuracy and lowering production costs.Type: ApplicationFiled: March 25, 2016Publication date: July 20, 2017Inventors: Yanchen LI, Panhua WANG
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Publication number: 20170193927Abstract: The invention provides a backlight and a display device, the backlight includes multiple backlight scanning lines and multiple backlight data lines, which are provided in different layers and are intersected with each other to divide the backlight into a plurality of light-emitting units, each of which is provided with one light-emitting diode and a light-emitting circuit for driving the light-emitting diode to emit light, the light-emitting circuits for a same row of light-emitting units are electrically connected to a corresponding backlight scanning line, the light-emitting circuits for a same column of light-emitting units are electrically connected to a corresponding backlight data line, the backlight scanning line is configured for providing a scanning signal to the light-emitting circuit, and the backlight data line is configured for providing a gray scale signal to the light-emitting circuit to control brightness of the light-emitting unit.Type: ApplicationFiled: July 1, 2016Publication date: July 6, 2017Inventors: Shengji YANG, Xiaochuan CHEN, Panhua WANG, Xue DONG, Hailin XUE, Haisheng WANG, Yingmin LIU
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Publication number: 20170115784Abstract: Embodiments of the invention disclose a self-capacitance touch display panel, a display device comprising the self-capacitance touch display panel, and a method of driving the self-capacitance touch display panel, so as to increase aperture opening ratio and transmissivity of pixels of the self-capacitance touch display panel. The self-capacitance touch display panel comprises an array substrate and a color filter substrate that are disposed to face one another, the array substrate comprising a common electrode disposed on a base substrate, the common electrode being configured to double as a plurality of touch electrodes, each touch electrode being electrically connected with a touch electrode wire. The touch electrode wire is configured to double as a common electrode wire.Type: ApplicationFiled: August 3, 2016Publication date: April 27, 2017Inventors: Yanchen Li, Shuai Han, Panhua Wang
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Publication number: 20170102589Abstract: Disclosed is a backlight module which includes a plurality of light-emitting devices arranged in an array of multiple rows and multiple columns. Each row of light-emitting devices include a plurality of first light-emitting devices for emitting red light, a plurality of second light-emitting devices for emitting green light and a plurality of third light-emitting devices for emitting blue light. The first light-emitting device, the second light-emitting devices and the third light-emitting devices in each row of light-emitting devices are driven to sequentially emit light based on respective data signals in a light-emitting phase. Further disclosed are a method of driving the backlight module and a display device.Type: ApplicationFiled: June 30, 2016Publication date: April 13, 2017Inventors: Shengji Yang, Xiaochuan Chen, Panhua Wang, Xue Dong, Hailin Xue, Haisheng Wang, Weijie Zhao
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Publication number: 20170083127Abstract: The present disclosure discloses a self-capacitive touch display panel and a display device, comprising: a substrate, and a plurality of top-emitting type organic electroluminescent structures disposed on the substrate and sharing one cathode. The self-capacitive touch display panel further comprises: a plurality of self-capacitive touch electrodes disposed at the same layer, positioned above the cathode and insulated with the cathode; a plurality of touch leads electrically connected with the plurality of self-capacitive touch electrodes; and a touch detection circuit, configured to determine a touch position by detecting the change of the capacitance values of the self-capacitive touch electrodes during a touch phase. The self-capacitive touch electrodes are connected with the touch detection circuit by way of the respective touch leads.Type: ApplicationFiled: March 31, 2016Publication date: March 23, 2017Inventors: Yingming LIU, Xue DONG, Panhua WANG, Haisheng WANG, Xiaochuan CHEN, Shengji YANG, Xiaoliang DING, Ziwei CUI, Yanyan YIN, Jun FAN, Jiantao LIU