Patents Assigned to Mianyang HKC Optoelectronics Technology Co., Ltd.
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Patent number: 11768326Abstract: A backlight module and a display device are provided. The backlight module includes a back cover, a support plate, a plastic frame, an engaging member, and a film assembly. The back cover includes a bottom cover and a side cover. The side cover is connected with a periphery of the bottom cover. The side cover and the bottom cover cooperatively define an accommodation space. The support plate is connected with the side cover. The plastic frame includes a side wall and a top wall. The side wall is connected with a periphery of the top wall. The engaging member is located between the support plate and the top wall, and connected with the support plate or the top wall. The film assembly is mounted in the accommodation space. The film assembly includes a film assembly body and a tab.Type: GrantFiled: December 29, 2022Date of Patent: September 26, 2023Assignees: MIANYANG HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITEDInventors: Danwang Song, Haijiang Yuan
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Patent number: 11764230Abstract: An array substrate, a display panel, and a display device are provided. The array substrate has a display region and a non-display region, and the array substrate includes a substrate, a metal layer, an intermediate layer, a conductive film, and a conductive adhesive disposed in the non-display region. The metal layer is disposed on one side of the substrate, and the intermediate layer is disposed on one side of the metal layer away from the substrate. The array substrate defines a groove penetrating through the intermediate layer. The conductive film is disposed on one side of the intermediate layer away from the substrate and extends into the groove, and the conductive adhesive is disposed on one side of part of the conductive film in the groove away from the substrate, and at least extends to an edge of the groove adjacent to the display region.Type: GrantFiled: December 29, 2022Date of Patent: September 19, 2023Assignees: MIANYANG HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITEDInventors: Lian Zhang, Guoduo Chen, Haijiang Yuan
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Patent number: 11749200Abstract: The present disclosure provides a display driving circuit and a display device. The display driving circuit includes multiple pixel circuits. A data terminal of each pixel circuit is connected to a corresponding data line. A scanning gate terminal of each pixel circuit is connected to a corresponding gate line. Power-supply terminals of N1 pixel circuits of the pixel circuits are all connected to a same first common line. N1 is greater than 2 and not greater than a first common number. The first common number is negatively correlated to any of a characteristic parameter of a thin-film field-effect transistor of each pixel circuit, and a current in one of the N1 pixel circuits, and a resistance of a power-supply voltage signal line between adjacent pixel circuits in the N1 pixel circuits, and the characteristic parameter is positively correlated to a channel width-to-length ratio of the thin-film field-effect transistor.Type: GrantFiled: December 27, 2022Date of Patent: September 5, 2023Assignees: MIANYANG HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITEDInventors: Xin Yuan, Xiufeng Zhou, Rongrong Li
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Patent number: 11721254Abstract: A method for eliminating horizontal crosstalk and a system for adjusting a common electrode voltage are provided. The method for eliminating the horizontal crosstalk includes the followings. First brightness values of a first test image corresponding to different common electrode voltages, second brightness values of a second test image corresponding to different common electrode voltages, and flicker values of a third test image corresponding to different common electrode voltages are obtained respectively. A brightness difference between a corresponding first brightness value and a corresponding second brightness value is calculated and a first-difference common electrode voltage corresponding to a minimum difference is obtained. A second-difference common electrode voltage corresponding to a minimum flicker value is obtained. A mean of the first-difference common electrode voltage and the second-difference common electrode voltage is taken as a target common electrode voltage.Type: GrantFiled: December 23, 2022Date of Patent: August 8, 2023Assignees: MIANYANG HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITEDInventors: Jianying Zhang, Haijiang Yuan
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Patent number: 11721705Abstract: An array substrate and a method for manufacturing the same, a display panel, and a display device are provided. The array substrate includes a base substrate, a stacked structure, a common-electrode line, and a conductive structure. The stacked structure is disposed on a first surface of the substrate. The stacked structure includes a contact pad, a common-electrode layer, and a gate line. The contact pad is disposed on the first surface of the base substrate. The base substrate defines a first via hole at a position corresponding to the contact pad. The common-electrode layer is connected with the contact pad. The common-electrode line is disposed on a second surface of the base substrate. An orthographic projection of the gate line on a plane where the common-electrode line is located at least partially overlaps with the common-electrode line. The conductive structure is connected with the contact pad and the common-electrode line.Type: GrantFiled: December 28, 2022Date of Patent: August 8, 2023Assignees: MIANYANG HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITEDInventors: Zhiwei Li, Baohong Kang
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Publication number: 20230245626Abstract: Disclosed are an overvoltage protection circuit, a display panel and a display. The overvoltage protection circuit includes an overvoltage detection circuit and an overvoltage count circuit. The overvoltage detection circuit connected to a power supply and the overvoltage count circuit detects a power supply voltage output by the power supply and output an overvoltage signal to the overvoltage count circuit when the power supply voltage is in an overvoltage state. The overvoltage count circuit connected to a switching element outputs a cutoff signal to the switching element when accumulated times for receiving overvoltage signals reach preset times, to control the switching element to disconnect the power supply from the power management integrated circuit.Type: ApplicationFiled: December 21, 2022Publication date: August 3, 2023Applicants: MIANYANG HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITEDInventors: Renjie ZHOU, Rongrong LI
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Publication number: 20230245621Abstract: A driving voltage compensation circuit including a compensation circuit and a first switching circuit, the first switching circuit connects a driving element and a light emitting device, and the compensation circuit is connected to the driving element. The circuit operates according to an operational timing, the operational timing including a plurality of cycles, each cycle including at least a first time period and a second time period; during the first time period of each of the plurality of cycles, the first switching circuit is turned on, and the compensation circuit is turned off; the energy storage element releases electrical energy to provide a driving voltage to the driving element; during the second time period, the compensation circuit utilizes the received data voltage to store electrical energy for the energy storage element of the compensation circuit.Type: ApplicationFiled: December 9, 2022Publication date: August 3, 2023Applicants: MIANYANG HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITEDInventors: Tao FAN, Baohong Kang
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Publication number: 20230238391Abstract: An array substrate and a method for manufacturing the same, a display panel, and a display device are provided. The array substrate includes a base substrate, a stacked structure, a common-electrode line, and a conductive structure. The stacked structure is disposed on a first surface of the substrate. The stacked structure includes a contact pad, a common-electrode layer, and a gate line. The contact pad is disposed on the first surface of the base substrate. The base substrate defines a first via hole at a position corresponding to the contact pad. The common-electrode layer is connected with the contact pad. The common-electrode line is disposed on a second surface of the base substrate. An orthographic projection of the gate line on a plane where the common-electrode line is located at least partially overlaps with the common-electrode line. The conductive structure is connected with the contact pad and the common-electrode line.Type: ApplicationFiled: December 28, 2022Publication date: July 27, 2023Applicants: Mianyang HKC Optoelectronics Technology Co., Ltd., HKC Corporation LimitedInventors: Zhiwei LI, Baohong KANG
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Publication number: 20230238392Abstract: An array substrate and a display panel are provided. The array substrate includes a bonding area and a fanout area connected with the bonding area. The fanout area includes a straight-line area and a slant-line area. The straight-line area is connected between the slant-line area and bonding area. The first wire in the straight-line area is connected with the bonding lead in the bonding area. The second wire in the slant-line area is connected with the first wire. A width of a first preset length of the first wire adjacent to the bonding area is equal to a width of the bonding lead. Alternatively, a width of a second preset length of the first wire adjacent to bonding area is not smaller than a width of the second wire and not larger than a width of the bonding lead.Type: ApplicationFiled: December 28, 2022Publication date: July 27, 2023Applicants: Mianyang HKC Optoelectronics Technology Co., Ltd., HKC Corporation LimitedInventors: Guoduo CHEN, Rongrong LI
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Patent number: 11703702Abstract: A privacy function structure, a display panel, and a display device are provided in the present disclosure. The privacy function structure includes a privacy state and a non-privacy state. The privacy function structure includes a first conductive layer, a privacy liquid crystal layer, a light-transmitting cover plate, and a second conductive layer. The privacy liquid crystal layer is disposed on a side of the first conductive layer, the light-transmitting cover plate is disposed on a side of the privacy liquid crystal layer away from the first conductive layer, and the second conductive layer is disposed on a side of the light-transmitting cover plate facing the first conductive layer. The second conductive layer includes multiple conductive strips mutually parallel. By controlling on and off of the multiple conductive strips, the privacy function structure is switched between the privacy state and the non-privacy state.Type: GrantFiled: November 28, 2022Date of Patent: July 18, 2023Assignees: MIANYANG HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITEDInventors: Yunyang Liu, Tianyu Xia, Haijiang Yuan
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Publication number: 20230178570Abstract: A pixel driving circuit, a method thereof, and a display panel, related to the field of display technology. The pixel driving circuit includes: a first charging unit, a discharging unit, a second charging unit, an energy storage capacitor and a driving transistor. The first charging unit is configured for pre-charging the energy storage capacitor. The discharge unit is configured for discharging the voltage of the pre-charged energy storage capacitor to a preset voltage. The second charging unit is configured for inputting the data voltage to the storage capacitor. After the second charging unit charges the energy storage capacitor, the voltage of the energy storage capacitor is equal to the sum of the preset voltage and the data voltage. The energy storage capacitor is connected to the gate electrode of the driving transistor.Type: ApplicationFiled: October 27, 2022Publication date: June 8, 2023Applicants: Mianyang HKC Optoelectronics Technology Co., Ltd., HKC CORPORATION LIMITEDInventors: Renjie ZHOU, Haijiang YUAN
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Publication number: 20230168555Abstract: Provided are an array substrate and a display panel. The array substrate includes: a base and first leads and second leads disposed in a non-display area on the base, the first leads are electrically connected to pixel electrodes, the second leads are electrically connected to a common electrode or to a ground electrode, the array substrate further includes an electrically actuated component, a bottom surface of which is conductive. After the electrically actuated component changes from an energized state to a de-energized state, the bottom surface is deformed and contacts at least part of the first leads and at least part of the second leads. The pixel electrodes and the common electrode or the ground electrode are shorted as the bottom surface of the electrically actuated component contacts the first leads and the second leads, to release residual charge on the pixel electrode.Type: ApplicationFiled: November 25, 2022Publication date: June 1, 2023Applicants: Mianyang HKC Optoelectronics Technology Co., Ltd., HKC CORPORATION LIMITEDInventors: Rong TANG, Baohong KANG
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Publication number: 20230168527Abstract: A privacy function structure, a display panel, and a display device are provided in the present disclosure. The privacy function structure includes a privacy state and a non-privacy state. The privacy function structure includes a first conductive layer, a privacy liquid crystal layer, a light-transmitting cover plate, and a second conductive layer. The privacy liquid crystal layer is disposed on a side of the first conductive layer, the light-transmitting cover plate is disposed on a side of the privacy liquid crystal layer away from the first conductive layer, and the second conductive layer is disposed on a side of the light-transmitting cover plate facing the first conductive layer. The second conductive layer includes multiple conductive strips mutually parallel. By controlling on and off of the multiple conductive strips, the privacy function structure is switched between the privacy state and the non-privacy state.Type: ApplicationFiled: November 28, 2022Publication date: June 1, 2023Applicants: Mianyang HKC Optoelectronics Technology Co., Ltd., HKC Corporation LimitedInventors: Yunyang LIU, Tianyu XIA, Haijiang YUAN