Patents Assigned to TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
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Publication number: 20240420658Abstract: The present application discloses a display device. The display device includes a display panel and a driving module. Each grayscale includes a positive polarity voltage and a negative polarity voltage symmetrical with respect to a common voltage. A data line is configured to output corresponding data voltages to each sub-pixel respectively. The driving module includes an adjustment unit. The adjustment unit is configured to increase the voltage values of the positive polarity voltages to obtain the compensated positive polarity voltages. The data voltages are the negative polarity voltages or the compensated positive polarity voltages.Type: ApplicationFiled: April 18, 2023Publication date: December 19, 2024Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Youngil BAN, Jinfeng LIU
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Publication number: 20240420614Abstract: A pixel arrangement structure, a display panel, and a grayscale control method are related. In each pixel group of the pixel arrangement structure, a number of first type pixels is equal to a number of second type pixels. A number of high grayscale sub-pixels, a number of first low grayscale sub-pixels, a number of second low grayscale sub-pixels, and a number of third low grayscale sub-pixels are all equal. For each pixel group, a ratio of the high grayscale sub-pixels to the low grayscale sub-pixels is one to three to improve a display color shift.Type: ApplicationFiled: January 10, 2022Publication date: December 19, 2024Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Jhenwei He
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Patent number: 12169332Abstract: A color filter substrate, a manufacturing method thereof, and a display panel are provided. The color filter substrate includes a color filter layer. The color filter layer includes a plurality of color resist units distributed on a base substrate, and an intersection area is defined between two adjacent color resist units. The color filter layer can be directly used as an electrode on the color filter substrate. That is, when manufacturing the color filter substrate, a step of manufacturing a conductive film layer can be omitted, thereby improving production efficiency of the color filter substrate, and meanwhile reducing production cost of the color filter substrate.Type: GrantFiled: June 8, 2022Date of Patent: December 17, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Lixuan Chen
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Patent number: 12169338Abstract: The present application discloses a display panel and a display device, which include a plurality of sub-pixels, and each of sub-pixel includes a first pixel electrode with a first pixel voltage and a second pixel electrode with a second pixel voltage; when the sub-pixels are in a low-gray-scale state, the second pixel voltage and the first pixel voltage have a first ratio; when the sub-pixels are in a high-gray-scale state, the second pixel voltage and the first pixel voltage have a second ratio, and the second ratio is greater than the first ratio.Type: GrantFiled: March 19, 2021Date of Patent: December 17, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yoonsung Um, Jing Liu, Kaili Qu, Chuwei Liang, Ziqi Liu, Ting Li, Lintao Liu
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Patent number: 12169616Abstract: A touch panel and a display device are provided by embodiments of the present application, a self-capacitance module in an original touch panel is replaced with a mutual capacitance module, and a combination of self-capacitance and mutual capacitance is adopted to effectively reduce wiring in the touch panel and to reduce cost at a same time.Type: GrantFiled: March 17, 2022Date of Patent: December 17, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Bao Zha
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Publication number: 20240411170Abstract: A splicing display panel is provided. The splicing display panel includes at least two spliced first display modules and at least one second display module. There is a seam between two adjacent first display modules. A portion of the first display module corresponding to a bezel area is provided with an accommodating slot. The accommodating slot of one of the first display modules is spliced with the accommodating slot of another one of the first display modules to form an accommodating cavity.Type: ApplicationFiled: August 19, 2024Publication date: December 12, 2024Applicant: TCL China Star Optoelectronics Technology Co., Ltd.Inventors: Lin LI, Bo SUN, Feng ZHENG, Yichen BAI, Meng CHEN
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Patent number: 12164714Abstract: The present disclosure discloses a touch display panel and a display device. The touch display panel includes a first substrate and a second substrate arranged opposite to each other. The first substrate includes a first base and a first common electrode arranged on the first base. The first common electrode is reused as a touch electrode. The second substrate includes a second base and a second common electrode. The second common electrode is arranged over an entire surface of one side of the second base close to the first base. One surface of the first substrate away from the second substrate is a display surface.Type: GrantFiled: November 5, 2021Date of Patent: December 10, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Bao Zha
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Patent number: 12164197Abstract: A backlight source and a display device are provided. The display panel includes the plurality of stacked metal sub-layers and the first passivation sub-layer and the second passivation sub-layer stacked. The first passivation sub-layer is disposed between the metal layer and the second passivation layer. Material of the first passivation sub-layer includes silicon nitride. The first passivation sub-layer covers the untidy area at the ends of the molybdenum-titanium alloy thin layer to avoid from detachment of the passivation layer, and meanwhile to solve the issues of simplifying the manufacturing process of the display panel, and to avoid from oxidation of the bonding pads.Type: GrantFiled: December 17, 2021Date of Patent: December 10, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Jing Liu, Hongzhao Deng, Zhengbo Cui, Hao Chen
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Patent number: 12164729Abstract: A beam transmitter and an optical touch display system are disclosed. The beam transmitter includes a first light source, a second light source, a power supply component, a touch sensor, and a control module. The beam transmitter includes a first projection state and a second projection state. The control module is respectively connected to the power supply component, the touch sensor, the first light source, and the second light source, and the control module controls the beam transmitter to switch between the first projection state and the second projection state according to a state of the touch sensor.Type: GrantFiled: April 24, 2022Date of Patent: December 10, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Zhitao Lu
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Patent number: 12163082Abstract: The present disclosure provides a liquid crystal composition, a liquid crystal display panel, and a manufacturing method of the liquid crystal display panel. Liquid crystal main monomer and polymerizable component monomer are adopted, and mass fractions of the liquid crystal main monomer and the polymerizable component monomer are controlled, so the polymerizable component monomer in the liquid crystal composition can react completely after an UV irradiation, and a second UV irradiation is dispensed. Therefore, it can reduce alignment time of liquid crystals.Type: GrantFiled: May 12, 2020Date of Patent: December 10, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Guoren Luo
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Patent number: 12165614Abstract: A driving method for a display panel includes: obtaining a change range of a refresh frequency difference of the display panel within a preset duration; obtaining a current refresh frequency of the display panel in response to determining that an upper limit of the change range of the refresh frequency difference is less than a preset refresh frequency difference; obtaining a number of display frames in response to determining that the current refresh frequency of the display panel is less than a reference refresh frequency; and performing brightness compensation on the display panel in response to determining that the number of display frames is greater than or equal to a preset number of frames.Type: GrantFiled: November 29, 2023Date of Patent: December 10, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Haokai Wang
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Patent number: 12165606Abstract: A display panel and a display device are provided in embodiments of the present application, the display panel includes: a plurality of sub-pixels, each of the sub-pixels includes a main area and a sub-area; a plurality of data lines connected to sub-pixels with a same polarity in adjacent pixel groups; a plurality of gate lines, each of which is connected to a part of sub-pixels in adjacent rows of sub-pixels; and a plurality of shared discharge bars, at least one shared discharge bar is disposed in the pixel group, and the shared discharge bars are connected to the sub-areas of the sub-pixels. Viewing angles of the display device can be improved.Type: GrantFiled: April 13, 2022Date of Patent: December 10, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Chunxiao Hu, Yoonsung Um, Xiaojin He
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Patent number: 12158667Abstract: The liquid crystal display panel disclosed in the present application includes a first substrate; a second substrate disposed opposite to the first substrate; and a liquid crystal layer disposed between the first substrate and the second substrate, wherein the first substrate includes a common electrode; the second substrate includes a plurality of first regions defined at intervals in a row direction, a plurality of second regions defined at intervals in a column direction, and a plurality of pixel regions defined by intersection of the plurality of the first regions and the plurality of the second regions; the first regions and/or the second regions are provided with opposite electrodes, so that the liquid crystal molecules located in the first regions and/or the second regions are in a stationary state, thereby improving response times of liquid crystal molecules.Type: GrantFiled: December 22, 2021Date of Patent: December 3, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Jing Liu
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Patent number: 12159568Abstract: A pixel driving circuit, a driving method thereof, and a display panel are disclosed. A second transistor stores a threshold voltage of a first transistor in a first capacitor according to a second scan signal, so as to compensate an influence of the threshold voltage on a driving current. A fifth transistor makes a voltage difference between a first node and a second node irrelevant to a second voltage signal according to a fourth scan signal, so as to improve a current attenuation issue caused by a voltage drop during a signal transmission.Type: GrantFiled: April 22, 2022Date of Patent: December 3, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Bin Liu
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Patent number: 12159564Abstract: The present application provides a pixel circuit and a display panel. The pixel circuit includes a light-emitting element, a driving circuit, a grayscale adjustment circuit, and a control circuit. The driving circuit can provide a corresponding power supply voltage for the light-emitting element, and the control circuit can control at least one of at least two grayscale adjustment branches to be in a conductive state.Type: GrantFiled: February 24, 2022Date of Patent: December 3, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Weifeng Chen
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Patent number: 12158657Abstract: An array substrate and a total reflection display panel are provided. The array substrate includes a first substrate, a touch control unit, and a total reflection layer. The touch control unit is disposed on a side of the total reflection layer facing the first substrate. Through arranging the touch unit on a side of the total reflection layer adjacent to the first substrate, a total reflection display is not affected, a close-range interaction function of the total reflection display panel is enhanced through the touch unit, and a versatility of display application scenarios is increased.Type: GrantFiled: July 8, 2022Date of Patent: December 3, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Zhengqin Lian, Ru Ge, Ying Lu, Lixia Li
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Patent number: 12159885Abstract: A manufacturing method of a mini-LED backlight plate and the mini-LED backlight plate are provided. The manufacturing method of the mini-LED backlight plate includes: providing a substrate, defining at least one display region, defining at least one mark region with metal mark objects in a non-display region, covering a mask on the substrate, exposing the at least one mark region, adopting a hydrophilic material to form a layer of a thin film on the at least one mark region, removing the mask, coating a hydrophobic passivation coating layer on the substrate, exposing the metal mark objects, and aligning by an exposure machine accurately.Type: GrantFiled: May 25, 2021Date of Patent: December 3, 2024Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventor: Lanyan Li
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Patent number: 12158671Abstract: A display panel and a display device are provided. The display panel includes a first substrate and the second substrate disposed oppositely, a plurality of liquid crystal molecules disposed between the first substrate and the second substrate, a plurality of pixel electrodes, a plurality of light-shielding electrodes and a plurality of auxiliary electrodes disposed on a same layer as the pixel electrodes. A first gap is defined between adjacent ones of the pixel electrodes, each light-shielding electrode is correspondingly disposed in a spacing. Each auxiliary electrode is located between an adjacent pixel electrode and a light-shielding electrode, a voltage applied to each auxiliary electrode is equal to a voltage applied to corresponding pixel electrode. An electric field is formed between the auxiliary electrode and the corresponding light-shielding electrode.Type: GrantFiled: July 14, 2023Date of Patent: December 3, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Qunfang Liang, Yani Chen, Kang Lu
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Patent number: 12158668Abstract: Liquid crystal display panels are provided. In the display panel, a first polarization direction of a first polarizer is perpendicular to a second polarization direction of a second polarizer; each pixel unit includes a pixel electrode including a trunk electrode, the trunk electrode includes a first and a second trunk electrodes disposed along a first direction and a second direction, respectively; an angle between the first direction and the first polarization direction is different from a right angle; the trunk electrode defines an area where the pixel unit is located as four domains, each domain is provided with branch electrodes; the branch electrodes in adjacent domains arranged in a row direction form a first angle and a second angle with the first polarization direction respectively, the first angle ranges from 0 to 30 degrees, and the second angle ranges from 60 degrees to 90 degrees.Type: GrantFiled: December 24, 2023Date of Patent: December 3, 2024Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventors: Xingwu Chen, Yoonsung Um, Yinfeng Zhang, Xin Zhang, Lixuan Chen, Dongze Li
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Publication number: 20240393640Abstract: The present disclosure discloses a driving backplate, a manufacturing method thereof, and a display device. The driving backplate includes a substrate, a reflective layer disposed on a side of a substrate, and a plurality of electronic devices disposed on a side of the reflective layer away from the substrate; the reflective layer includes a plurality of openings, and includes a plurality of overlapping parts disposed adjacent to the openings and corresponding to the plurality of openings; and an orthogonal projection of each of the overlapping parts on a plane of the substrate overlaps with an orthogonal projection of a part of each of the electronic devices on the plane of the substrate.Type: ApplicationFiled: July 31, 2024Publication date: November 28, 2024Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Hongzhao DENG