Patents by Inventor Daobing HU
Daobing HU 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: 20260223407Abstract: A thin-film transistor, a display panel, and a display device are provided. The thin-film transistor includes an active layer and a gate disposed on a side of the active layer; a material of the active layer includes an oxide semiconductor material and a first metal element doped in the oxide semiconductor material, and the first metal element includes terbium.Type: ApplicationFiled: May 31, 2025Publication date: July 30, 2026Applicant: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTd.Inventors: Xiaolin YAN, Jun ZHAO, Bin ZHAO, Juncheng XIAO, Jingdong Liu, Daobing HU
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Publication number: 20260223421Abstract: The application provides a semiconductor device and a display panel. The display panel includes a semiconductor device. The semiconductor device includes an active layer made of a semiconductor material. The semiconductor material is doped with tantalum, and at least one of terbium and praseodymium. The semiconductor material includes a metal oxide semiconductor material.Type: ApplicationFiled: June 29, 2025Publication date: July 30, 2026Applicant: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Bin ZHAO, Juncheng XIAO, Xiaolin YAN, Shan LI, Jingdong LIU, Daobing HU
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Publication number: 20260223456Abstract: A display panel, a method for manufacturing the display panel, and a display device. The display panel includes a substrate, a buffer layer, an active layer, a gate insulating layer, and a gate layer. At least one of the buffer layer and the gate insulating layer has a laminated structure formed by stacking two layers of the same material, and the hydrogen content in the film layer of the laminated structure adjacent to the active layer is lower than that in the film layer of the laminated structure away from the active layer. The active layer is provided as a laminated structure formed by the first active sublayer and the second active sublayer, and the mobility of the first active sublayer is made greater than that of the second active sublayer.Type: ApplicationFiled: June 24, 2025Publication date: July 30, 2026Applicant: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTd.Inventors: Jun ZHAO, Juncheng XIAO, Xiaolin YAN, Bin ZHAO, Hui XIAO, Daobing HU
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Publication number: 20260223412Abstract: The application provides a semiconductor device and a display panel. In an embodiment, the semiconductor device includes an active layer made of a semiconductor material. The semiconductor material is doped with tin, and at least one of terbium and praseodymium. The semiconductor material includes a metal oxide semiconductor material.Type: ApplicationFiled: April 30, 2025Publication date: July 30, 2026Applicant: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTd.Inventors: Yuanjun HSU, Weiran CAO, Juncheng XIAO, Xiaolin YAN, Jingdong Liu, Daobing HU
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Publication number: 20260212836Abstract: A display device is provided. The display device includes a plurality of gate driver on array (GOA) circuits in a cascaded configuration, and each GOA circuit includes two pull-down sub-circuits. Each of the two pull-down sub-circuit includes an inverter and a pull-down maintainer, and the inverter includes seven transistors. The two pull-down sub-circuits are configured to alternately output a low-level power signal to a second node during a cycle of a predetermined duration, and the predetermined duration may be within a range from a duration of a driving cycle of 160 frames to a duration of a driving cycle of 240 frames.Type: ApplicationFiled: June 17, 2025Publication date: July 23, 2026Applicant: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Yu LIU, Daobing HU
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Patent number: 12626637Abstract: A pixel driving circuit and a mobile terminal are provided. The pixel driving circuit includes a switch thin film transistor, a storage circuit, and a light driving circuit. The switch thin film transistor receives data signal applied on the data line in response to scan signal applied on the scan line. The storage circuit is charged by the data signal. The light driving circuit emits light in response to the data signal. The light driving circuit includes a driving unit, light-emitting unit, a supply voltage end, a ground end, and a voltage-dividing transistor that is coupled between the driving unit and the ground end.Type: GrantFiled: August 10, 2021Date of Patent: May 12, 2026Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Daobing Hu
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Publication number: 20260032953Abstract: An array substrate and a display panel are provided. The array substrate includes a substrate and a first conductive layer, a first insulating layer, a semiconductor layer, and a third conductive layer. The first conductive layer includes a source electrode and a light shielding electrode arranged at intervals. The semiconductor layer includes a channel part and a source contact part. A part of the source contact part is disposed inside the first via hole and connected to the source electrode. The third conductive layer includes a first auxiliary electrode corresponding to the source contact part. The first auxiliary electrode is connected to at least the source contact part located inside the first via hole. An orthographic projection of the source contact part located inside the first via hole on the substrate is within a range of an orthographic projection of the first auxiliary electrode on the substrate.Type: ApplicationFiled: August 26, 2024Publication date: January 29, 2026Inventors: Meinan LI, Yuanjun HSU, Daobing HU, Yanrui LIN
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Patent number: 12488765Abstract: The present application provides a splicing display device includes a liquid crystal display screen and an inorganic light emitting diode display screen. A color point coordinate of a color of a light emitted by the liquid crystal display screen in the CIE 1931 XYZ chromaticity diagram is in a first gamut triangle. A color point coordinate of a color of a light emitted by the inorganic light emitting diode display screen in the CIE 1931 XYZ chromaticity diagram is in a second gamut triangle. A gamut boundary of the second gamut triangle surrounds a gamut boundary of the first gamut triangle, and a difference between a NTSC color gamut corresponding to the second gamut triangle and a NTSC color gamut corresponding to the first gamut triangle is less than 30%.Type: GrantFiled: April 27, 2023Date of Patent: December 2, 2025Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Jun Zhao, Bin Zhao, Juncheng Xiao, Hongyuan Xu, Shi Tang, Guangmiao Wan, Daobing Hu, Meinan Li, Maoxia Zhu, Yu Liu
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Patent number: 12471419Abstract: A LED display panel includes a substrate, a light source assembly disposed on the substrate, and a light filter layer disposed on the light source assembly. The light filter layer includes a light filter region. The light filter region includes a light-transmitting region and a non-light-transmitting region disposed outside the light-transmitting region. An incident angle of a light emitted by the light source assembly to the light-transmitting region is less than a total reflection critical angle of the light filter layer, and an incident angle of the light emitted by the light source assembly to the non-light-transmitting region is greater than or equal to the total reflection critical angle of the light filter layer. The total reflection critical angle is a critical angle at which the light exits from an upper surface of the light filter layer. A display device includes the LED display panel.Type: GrantFiled: August 30, 2022Date of Patent: November 11, 2025Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventor: Daobing Hu
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Patent number: 12464615Abstract: A backlight board, a backlight module, and a display device are provided. The backlight board includes a substrate, a light-emitting unit, and a packaging block. A control circuit, a first power signal line, and a second power signal line are disposed on the substrate. The light-emitting unit includes a plurality of light-emitting devices. A plurality of first control switches are integrated in the packaging block. The plurality of first control switches are integrated, so that a space occupied by the first control switches in general is reduced, thereby improving the space utilization and level of integration of the backlight board.Type: GrantFiled: July 17, 2024Date of Patent: November 4, 2025Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Daobing Hu
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Publication number: 20250185290Abstract: The present disclosure provides a semiconductor device and a method for preparing same. The semiconductor device includes a substrate, a source, a semiconductor layer, a drain, an insulating layer, and a gate. A main body portion of the source and a main body portion of the drain are disposed on different faces. The semiconductor layer is disposed between the source and the drain. The gate is disposed on a side of the semiconductor layer. Therefore, a vertical channel thin film transistor (TFT) is formed. In this way, the mobility of carriers in the TFT and the performance of the semiconductor device are effectively improved.Type: ApplicationFiled: June 22, 2021Publication date: June 5, 2025Applicants: Huizhou China Star Optoelectronics Display Co., Ltd., TCL China Star Optoelectronics Technology Co., Ltd.Inventor: Daobing HU
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Patent number: 12217656Abstract: Disclosed is a display panel, which adopts two display screens arranged by splicing. The display screen includes a display area and a non-display area on at least one side of the display area. An LED substrate is disposed on the non-display area. The LED substrate includes a substrate and a light emitting device disposed on the substrate. A cover plate is provided on at least two display screens. A groove is provided on one side of the cover plate close to the LED substrate. A side surface of the substrate is disposed opposite to a groove wall of the groove. A part of the groove wall surface corresponding to the side surface of the substrate is a reflection interface.Type: GrantFiled: June 13, 2022Date of Patent: February 4, 2025Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Daobing Hu
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Patent number: 12205539Abstract: A pixel driving circuit and a mobile terminal are provided. The pixel driving circuit includes a switch circuit, a storage circuit, and a light driving circuit. The switch circuit receives data signal applied on the data line in response to scan signal applied on the scan line. The storage circuit is charged by the data signal. The light driving circuit emits light in response to the data signal. The light driving circuit includes a driving unit, light-emitting unit, a supply voltage end, a ground end, and a voltage dividing unit that is coupled between the driving unit and the ground end.Type: GrantFiled: August 10, 2021Date of Patent: January 21, 2025Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventor: Daobing Hu
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Patent number: 12199075Abstract: A spliced panel is provided. A light-emitting diode substrate is disposed on two adjacent display panels and blocks a gap. A substrate comprises a first surface, a second surface, and a third surface. The first surface and the second surface are disposed opposite to each other. The third surface is connected between the first surface and the second surface. A plurality of light-emitting diodes are disposed on the first surface. The reflective layer is disposed on the third surface. An angle between the third surface and the second surface is greater than or equal to 90°.Type: GrantFiled: November 22, 2021Date of Patent: January 14, 2025Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Jun Zhao, Juncheng Xiao, Daobing Hu
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Patent number: 12183292Abstract: A backlight driving method and a display panel are provided. The backlight driving method provided by the present application uses pulse width modulation technology to modulate a low-level pulse width of a scan signal. By increasing a low-level pulse width to increase the pulse period, a number of high-level pulses is reduced, thereby reducing a high-level pulse time. Therefore, a time for a TFT to receive a high-level voltage is also reduced, thereby improving a stability of the TFT and also improving a problem of a threshold voltage drift of the TFT.Type: GrantFiled: April 25, 2021Date of Patent: December 31, 2024Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventors: Daobing Hu, Guangmiao Wan, Hang Wang, Xu Wang, Cong Hu, Hongyuan Xu, Woosung Son
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Publication number: 20240373527Abstract: A backlight board, a backlight module, and a display device are provided. The backlight board includes a substrate, a light-emitting unit, and a packaging block. A control circuit, a first power signal line, and a second power signal line are disposed on the substrate. The light-emitting unit includes a plurality of light-emitting devices. A plurality of first control switches are integrated in the packaging block. The plurality of first control switches are integrated, so that a space occupied by the first control switches in general is reduced, thereby improving the space utilization and level of integration of the backlight board.Type: ApplicationFiled: July 17, 2024Publication date: November 7, 2024Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Daobing HU
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Publication number: 20240334665Abstract: Embodiment of the present application discloses a substrate and a display panel. In the substrate, a first electrostatic protection structure is correspondingly disposed in a peripheral area, a signal line is connected to the first electrostatic protection structure; a first common line is correspondingly disposed in the peripheral area, the first electrostatic protection structure is connected to the first common line; and a second common line is correspondingly disposed in the peripheral area, and is located on a side of the first common line away from a pixel arrangement area.Type: ApplicationFiled: August 11, 2021Publication date: October 3, 2024Inventor: Daobing HU
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Publication number: 20240282258Abstract: A pixel driving circuit and a mobile terminal are provided. The pixel driving circuit includes a switch circuit, a storage circuit, and a light driving circuit. The switch circuit receives data signal applied on the data line in response to scan signal applied on the scan line. The storage circuit is charged by the data signal. The light driving circuit emits light in response to the data signal. The light driving circuit includes a driving unit, light-emitting unit, a supply voltage end, a ground end, and a voltage dividing unit that is coupled between the driving unit and the ground end.Type: ApplicationFiled: August 10, 2021Publication date: August 22, 2024Applicant: TCL China Star Optoelectronics Technology Co., Ltd.Inventor: Daobing HU
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Patent number: 12058791Abstract: A backlight board, a backlight module, and a display device are provided. The backlight board includes a substrate, a light-emitting unit, and a packaging block. A control circuit, a first power signal line, and a second power signal line are disposed on the substrate. The light-emitting unit includes a plurality of light-emitting devices. A plurality of first control switches are integrated in the packaging block. The plurality of first control switches are integrated, so that a space occupied by the first control switches in general is reduced, thereby improving the space utilization and level of integration of the backlight board.Type: GrantFiled: August 27, 2021Date of Patent: August 6, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Daobing Hu
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Patent number: 12038646Abstract: The present disclosure provides a thin film transistor device, a backlight module, and a display panel. The thin film transistor device includes a source portion, an active layer located on the source portion, a drain portion spaced apart from the source portion, and a conductor portion located on the active layer and extending to the drain portion. According to the present disclosure, the active layer is disposed on the source portion, and the drain portion is electrically connected to the active layer using the conductor portion, so that a current is transmitted from the drain portion to the active layer through the conductor portion.Type: GrantFiled: May 31, 2021Date of Patent: July 16, 2024Assignees: Huizhou China Star Optoelectronics Display Co., Ltd., TCL China Star Optoelectronics Technology Co., Ltd.Inventor: Daobing Hu