Patents by Inventor Tieshi WANG
Tieshi 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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Publication number: 20210166606Abstract: A method includes: setting target white color coordinates, a target white luminance and a gamma value; calculating a first luminance value of each primary color at each gray scale; measuring color coordinates of the primary color at each gray scale, and generating a list of a correspondence among the gray scale, the first luminance value and the color coordinates of the primary color; selecting a plurality of gray scales, and obtaining color coordinates corresponding to one of the plurality of gray scales; calculating a second luminance value of the primary color at each of the plurality of gray scales; and obtaining and storing a luminance correction relationship of the primary color according to the second luminance value of the primary color at each of the plurality of gray scales and the first luminance values corresponding to each of the plurality of gray scales.Type: ApplicationFiled: May 27, 2020Publication date: June 3, 2021Inventors: Dongxu HAN, Tieshi WANG, Zhongyuan WU, Wei CHEN, Enming XIE, Chi ZHANG, Yongqian LI
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Patent number: 11024232Abstract: A pixel driving circuit and a driving method thereof, and a display panel are provided. The pixel driving circuit includes a driving sub-circuit, a reset sub-circuit, a light-emitting control sub-circuit, and a first compensation sub-circuit, the reset sub-circuit, the light-emitting control sub-circuit, and the first compensation sub-circuit are configured to, in an initialization phase, under control of a first driving signal and a second driving signal, provide the first power supply voltage provided by the first power supply input terminal to the control terminal of the driving sub-circuit; the first terminal of the driving sub-circuit is connected to the second power supply input terminal to receive the second power supply voltage; and the first power supply voltage and the second power supply voltage are configured to cause the driving sub-circuit to be in an on-bias state in the initialization phase.Type: GrantFiled: November 11, 2019Date of Patent: June 1, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xueling Gao, Kuanjun Peng, Wei Qin, Zhiqiang Xu, Tieshi Wang, Xiaolong Li, Jintao Peng
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Patent number: 11016625Abstract: A display panel and deformation sensing method thereof, and a display device are provided. The display panel includes a substrate, and a deformation sensing unit on the substrate; the deformation sensing unit includes a first electrode, a second electrode, and a third electrode, the second electrode and the third electrode being configured to form a first capacitor, the first electrode and the second electrode being configured to form a second capacitor, the first electrode and the third electrode being configured to form a third capacitor, and the first capacitor, the second capacitor, and the third capacitor being configured to determine a shape-state of the display panel.Type: GrantFiled: October 16, 2019Date of Patent: May 25, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jinqian Wang, Tieshi Wang
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Publication number: 20210150975Abstract: A pixel circuit, a driving method thereof and a display apparatus are provided. The pixel circuit comprises a control module, a short-circuit protection module, a drive transistor and a light-emitting device, wherein the short-circuit protection module is used for providing a data voltage to a gate of the drive transistor in response to a gate signal; a second pole of the drive transistor is connected to a positive pole of the light-emitting device, and a negative pole of the light-emitting device receives a second power supply voltage; the short-circuit protection module is used for providing a third power supply voltage to the gate of the drive transistor to turn off the drive transistor in response to the data voltage provided to the gate of the drive transistor and the second power supply voltage provided to the positive pole of the light-emitting device.Type: ApplicationFiled: June 3, 2020Publication date: May 20, 2021Inventors: Shengnan Li, Wei Qin, Tieshi Wang, Weixing Liu, Chunfang Zhang, Wanpeng Teng, Dongni Liu
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Publication number: 20210142764Abstract: The present disclosure relates to a light-emission control signal generating device and a display device. The light-emission control signal generating device includes: a state detection circuit configured to detect whether a current frame is a static frame or a dynamic frame and output an indication signal indicating the static frame or the dynamic frame; and a plurality of light emission control signal generation circuits; wherein the plurality of light emission control signal generation circuits are divided into a plurality of blocks, and individual blocks are input with different light emission enable signals based on the indication signal to generate light emission control signals.Type: ApplicationFiled: May 24, 2019Publication date: May 13, 2021Inventors: Xueling GAO, Kuanjun PENG, Chengchung YANG, Zhiqiang XU, Wei QIN, Tieshi WANG, Xiaolong LI, Shengnan LI, Wanpeng TENG
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Patent number: 10997913Abstract: The present disclosure relates to a method and an apparatus for controlling a drive current of a display panel, an electronic device, and a storage medium. A standard drive current of the display panel is calculated based on the power function of the display panel. An actual drive current is detected in a working process of the display panel, and it is determined whether the actual drive current exceeds the standard by comparing the actual drive current with the standard drive current. The actual drive current is regulated if the actual drive current exceeds the standard.Type: GrantFiled: June 26, 2019Date of Patent: May 4, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Dongxu Han, Tieshi Wang, Zhongyuan Wu, Yongqian Li, Chi Zhang, Jinxia Hu, Wei Chen, Pan Xu
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Patent number: 10991306Abstract: A circuit of driving pixel includes a driving transistor, having a first end connected to a first node, a control end connected to a second node, and a second connected to the third node end; a writing circuit, connected a data signal end, a first scanning end and the first node; a first control circuit, connected to a first power end, a light emitting control end and the first node; a reset circuit, connected to a reference signal end, a second scanning end and the second node; a compensation circuit, connected between the second node and the third node; a second control circuit, connected to the third node, a light emitting element and the light emitting control end; and an energy storage circuit, connected between the first power end and the second node. The second end of the light emitting element receives a second voltage signal.Type: GrantFiled: June 28, 2019Date of Patent: April 27, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Tieshi Wang, Xueling Gao, Zhiqiang Xu, Chengchung Yang, Haoran Liu
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Publication number: 20210110759Abstract: An embodiment of the present disclosure provides a driving circuit, a driving method thereof, a display panel and a display device. The driving circuit includes a first transistor electrically connected between a signal input terminal and a light emitting device to be driven, a duration control circuit configured to provide a signal of a duration data signal terminal to a gate of the first transistor in response to a signal of a duration scanning signal terminal, and a latch circuit electrically connected with the gate of the first transistor and configured to latch the signal of the gate of the first transistor.Type: ApplicationFiled: October 12, 2019Publication date: April 15, 2021Inventors: Wei QIN, Weixing LIU, Tieshi WANG, Kai GUO, Xiaolong LI, Kuanjun PENG, Zhiqiang XU, Wanpeng TENG
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Patent number: 10971069Abstract: A pixel driving circuit, a driving method and a display device are provided. The pixel driving circuit includes a driving unit, a capacitor unit, a data write-in unit connected to a corresponding gate line, a corresponding data line and the driving unit, a power source control unit connected to a first light-emitting control end, a power source signal input end and the driving unit, and a first light-emitting control unit connected to a second light-emitting control end, the power source signal input end and the driving unit and configured to, within a predetermined time period of a light-emitting stage, control the power source signal input end to be electrically connected to the driving unit under the control of the second light-emitting control end, stop the operation of the driving unit, and enable the light-emitting unit not to emit light.Type: GrantFiled: April 18, 2019Date of Patent: April 6, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Tieshi Wang, Kuanjun Peng, Wei Qin, Chengchung Yang, Xueling Gao, Xiaolong Li, Zhiqiang Xu, Yan Wei, Shengnan Li
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Publication number: 20210097908Abstract: The present disclosure provides a light emitting control circuit, an array substrate and a display device, and a driving method of the light emitting control circuit. The light emitting control circuit includes: a light emitting device; a driving circuit including a driving switch device configured to drive the light emitting device to emit light when the driving switch device is turned on; a detection circuit, configured to detect whether the light emitting device is short-circuited in the detection stage of the light emitting control circuit; if the light emitting device is short-circuited, the driving switch device is turned off in the light emitting stage of the light emitting control circuit; if the light emitting device is not short-circuited, the driving switch device is turned on in the light emitting stage of the light emitting control circuit.Type: ApplicationFiled: July 29, 2020Publication date: April 1, 2021Inventors: Shengnan LI, Wei QIN, Tieshi WANG, Weixing LIU, Dongni LIU
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Patent number: 10962825Abstract: A display panel is provided, including an organic electroluminescent device including an anode layer, a liquid crystal cell on a light exit side of the organic electroluminescent device. The liquid crystal cell includes a liquid crystal layer, a linear polarizer on a side of the liquid crystal cell facing away from the organic electroluminescent device and configured to convert ambient light into a first polarized light, and an electrode assembly configured to control deflection of liquid crystal molecules in the liquid crystal layer to convert reflected light from the anode layer into a second polarized light. A second polarization direction of the second polarized light is different from a first polarization direction of the first polarized light. The display panel may decrease the intensity of reflected light perceived by the user when viewing the displayed image in an ambient environment.Type: GrantFiled: June 3, 2019Date of Patent: March 30, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wei Qin, Kuanjun Peng, Xiaolong Li, Tieshi Wang, Xueling Gao, Jintao Peng, Shengnan Li
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Publication number: 20210027711Abstract: A pixel circuit includes a sensing circuit, a gray-scale control circuit and a light-emitting switch circuit; the sensing circuit is configured to charge and discharge a sensing capacitor when a sensing capacitor is formed by a touch object and an anode layer of OLED; the gray-scale control circuit is configured to control the light-emitting intensity of the OLED; the light-emitting switch circuit is configured to control the OLED to emit light.Type: ApplicationFiled: March 25, 2020Publication date: January 28, 2021Inventors: Wei QIN, Zhiqiang XU, Xiaolong LI, Tieshi WANG, Weixing LIU, Kai GUO, Jintao PENG, Yanan NIU, Kuanjun PENG
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Publication number: 20200410927Abstract: A pixel circuit, a driving method thereof, and a display apparatus are disclosed. The pixel circuit is configured to drive a light emitting element to emit light, and includes: a node control sub-circuit, a light emitting control sub-circuit and a driving sub-circuit; the node control sub-circuit is connected with a first scanning terminal, a second scanning terminal, a reset signal terminal, an initial signal terminal, a first node, a second node, a third node, a data signal terminal and a ground terminal respectively; the light emitting control sub-circuit is connected with a first power supply terminal, a light emitting control terminal and a fourth node respectively; the driving sub-circuit is connected with the first node, the second node, the third node and the fourth node respectively; and the light emitting element is connected with the first node and a second power supply terminal respectively.Type: ApplicationFiled: June 18, 2020Publication date: December 31, 2020Inventors: Tieshi WANG, Shengnan LI, Wei QIN, Dongxu HAN
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Publication number: 20200319521Abstract: A display panel, a method for preparing a display panel and a method for adjusting an intensity of ambient light reflected on a display panel are provided in embodiments of the disclosure. The display panel includes: a base substrate; a plurality of sub-pixel units (20) on the base substrate comprising a plurality of light emitting portions respectively; an electrochromic assembly on a light-emergent side of the plurality of light emitting portions; and a light intensity detector configured to detect an incident intensity of ambient light, and the electrochromic assembly comprises a plurality of electrochromic portions covering the plurality of light emitting portions, respectively; and transmittance of the plurality of electrochromic portions for ambient light varies with a change in the incident intensity of ambient light.Type: ApplicationFiled: October 25, 2019Publication date: October 8, 2020Applicant: BOE Technology Group Co., Ltd.Inventors: Wei Qin, Xiaolong Li, Tieshi Wang, Jintao Peng, Xueling Gao, Yanan Niu, Kuanjun Peng, Shengnan Li
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Publication number: 20200302867Abstract: A pixel driving circuit and a driving method thereof, and a display panel are provided. The pixel driving circuit includes a driving sub-circuit, a reset sub-circuit, a light-emitting control sub-circuit, and a first compensation sub-circuit, the reset sub-circuit, the light-emitting control sub-circuit, and the first compensation sub-circuit are configured to, in an initialization phase, under control of a first driving signal and a second driving signal, provide the first power supply voltage provided by the first power supply input terminal to the control terminal of the driving sub-circuit; the first terminal of the driving sub-circuit is connected to the second power supply input terminal to receive the second power supply voltage; and the first power supply voltage and the second power supply voltage are configured to cause the driving sub-circuit to be in an on-bias state in the initialization phase.Type: ApplicationFiled: November 11, 2019Publication date: September 24, 2020Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xueling GAO, Kuanjun PENG, Wei QIN, Zhiqiang XU, Tieshi WANG, Xiaolong LI, Jintao PENG
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Publication number: 20200264734Abstract: A display panel and deformation sensing method thereof, and a display device are provided. The display panel includes a substrate, and a deformation sensing unit on the substrate; the deformation sensing unit includes a first electrode, a second electrode, and a third electrode, the second electrode and the third electrode being configured to form a first capacitor, the first electrode and the second electrode being configured to form a second capacitor, the first electrode and the third electrode being configured to form a third capacitor, and the first capacitor, the second capacitor, and the third capacitor being configured to determine a shape-state of the display panel.Type: ApplicationFiled: October 16, 2019Publication date: August 20, 2020Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jinqian WANG, Tieshi WANG
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Publication number: 20200160787Abstract: A circuit of driving pixel includes a driving transistor, having a first end connected to a first node, a control end connected to a second node, and a second connected to the third node end; a writing circuit, connected a data signal end, a first scanning end and the first node; a first control circuit, connected to a first power end, a light emitting control end and the first node; a reset circuit, connected to a reference signal end, a second scanning end and the second node; a compensation circuit, connected between the second node and the third node; a second control circuit, connected to the third node, a light emitting element and the light emitting control end; and an energy storage circuit, connected between the first power end and the second node. The second end of the light emitting element receives a second voltage signal.Type: ApplicationFiled: June 28, 2019Publication date: May 21, 2020Inventors: Tieshi Wang, Xueling Gao, Zhiqiang Xu, Chengchung Yang, Haoran Liu
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Patent number: 10657859Abstract: A testing method for splicing screens is provided. The method includes: outputting an image signal to a display screen, wherein the display screen includes a plurality of splicing screens, the image signal includes a plurality of testing sub pictures, the testing sub pictures are arranged correspondingly to the splicing screens so as to enable the splicing screens to display the corresponding testing sub pictures, and the testing sub pictures include testing contents; and testing the splicing screens through the testing contents, wherein the testing contents include a graduation signal, by which an accurate test is performed on the splicing screens.Type: GrantFiled: May 13, 2019Date of Patent: May 19, 2020Assignee: BOE Technology Group Co., Ltd.Inventors: Tieshi Wang, Saihua Chen, Xuefei Wang, Wanpeng Teng, Heliang Di, Zhihong Du, Shanshan Zhou
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Publication number: 20200124912Abstract: A display panel is provided, including an organic electroluminescent device including an anode layer, a liquid crystal cell on a light exit side of the organic electroluminescent device. The liquid crystal cell includes a liquid crystal layer, a linear polarizer on a side of the liquid crystal cell facing away from the organic electroluminescent device and configured to convert ambient light into a first polarized light, and an electrode assembly configured to control deflection of liquid crystal molecules in the liquid crystal layer to convert reflected light from the anode layer into a second polarized light. A second polarization direction of the second polarized light is different from a first polarization direction of the first polarized light. The display panel may decrease the intensity of reflected light perceived by the user when viewing the displayed image in an ambient environment.Type: ApplicationFiled: June 3, 2019Publication date: April 23, 2020Inventors: Wei QIN, Kuanjun PENG, Xiaolong Li, Tieshi WANG, Xueling GAO, Jintao PENG, Shengnan Li
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Publication number: 20200090591Abstract: A pixel driving circuit, a driving method and a display device are provided. The pixel driving circuit includes a driving unit, a capacitor unit, a data write-in unit connected to a corresponding gate line, a corresponding data line and the driving unit, a power source control unit connected to a first light-emitting control end, a power source signal input end and the driving unit, and a first light-emitting control unit connected to a second light-emitting control end, the power source signal input end and the driving unit and configured to, within a predetermined time period of a light-emitting stage, control the power source signal input end to be electrically connected to the driving unit under the control of the second light-emitting control end, stop the operation of the driving unit, and enable the light-emitting unit not to emit light.Type: ApplicationFiled: April 18, 2019Publication date: March 19, 2020Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Tieshi WANG, Kuanjun PENG, Wei QIN, Chengchung YANG, Xueling GAO, Xiaolong LI, Zhiqiang XU, Yan WEI, Shengnan LI