Patents Assigned to TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
  • Patent number: 11984073
    Abstract: A partitioned display structure includes a plurality of direct current (DC) voltage electrodes, each of the DC voltage electrodes is connected to a plurality of light-emitting units; a plurality of input voltage sources, the input voltage sources are connected to the DC voltage electrodes in a one-to-one manner, and are configured to transmit input signals to the plurality of light-emitting units for emitting light for displaying images; and a plurality of switches. Each of the switches is connected between two adjacent DC voltage electrodes to control a connection between the two adjacent DC voltage electrodes, the plurality of DC voltage electrodes are connected with each other in response to the plurality of switches in a turned-on state, and the plurality of DC voltage electrodes are insulated from each other in response to the plurality of switches in a turned-off state.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: May 14, 2024
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yan Li
  • Patent number: 11982909
    Abstract: A method for manufacturing a liquid crystal display panel and a liquid crystal display panel are provided. The method of manufacturing a liquid crystal display panel comprises the following steps: grinding the display device along a preset edge and removing the adhesive layer on a side of the preset edge away from a frame sealant, to obtain the liquid crystal display panel.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: May 14, 2024
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Hao Chen
  • Patent number: 11982914
    Abstract: The present application relates to an array substrate and a display panel. In the present application, a first common line and a first sharing line are respectively disposed on two sides of a scan line, thereby preventing a situation in the prior art that the first sharing line penetrates a main pixel region and a sub-pixel region vertically, thereby improving an aperture ratio and a transmittance of the array substrate. The first common line, the first sharing line, and the scan line are disposed in a same layer, thereby further improving the transmittance of the array substrate.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: May 14, 2024
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventors: Juncheng Xiao, Ji Li, Fen Long, Yingchun Zhao, Ru Ge
  • Patent number: 11984456
    Abstract: The present invention provides an array base plate and a manufacturing method therefor. The array base plate includes a substrate base plate layer, a first trace layer, an insulating layer, and a stress balance layer. The first trace layer includes a first trace. An edge of the stress balance layer is aligned to an edge of the substrate base plate layer. The stress balance layer has a bending stress in a direction opposite to a direction of the first trace and a curvature less than 1.2 mm/m.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: May 14, 2024
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventors: Ling Zhao, Weimin Chang, Juncheng Xiao
  • Publication number: 20240153439
    Abstract: A pixel circuit, a backlight module, and a display panel are provided. The pixel circuit includes a driving unit, a voltage stabilization unit, a coupling unit, a writing unit, and a black insertion unit. One end of the black insertion unit is connected to a control end of the driving unit, the other end of the black insertion unit is connected to a first power line, and a control end of the black insertion unit is connected to a second control line. The driving unit can be turned off in a plurality of different time periods in a light-emitting phase of the pixel circuit, thereby constructing a plurality of unequally divided sub-fields, which can increase a number of grayscales which can be displayed.
    Type: Application
    Filed: April 19, 2022
    Publication date: May 9, 2024
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Bin Liu
  • Publication number: 20240154071
    Abstract: Provided is a light-emitting panel comprising a substrate, a plurality of light-emitting device, and a reflection sheet, wherein the plurality of light-emitting devices and the reflection sheet are disposed on the same side of the substrate, the reflection sheet comprises a plurality of first through-holes, which are in one-to-one correspondence with the plurality of light-emitting devices, and the reflection sheet at an edge of the plurality of first through-holes is configured to wrap around an edge of the plurality of light-emitting device, and a gap between an edge of the plurality of first through-holes and an edge adjacent to the plurality of light-emitting devices is less than 0.1 mm, so that a distance between the edge of the plurality of first through holes and the edge of the plurality of light-emitting devices is reduced, and the size and width of the windowed area are reduced.
    Type: Application
    Filed: December 19, 2022
    Publication date: May 9, 2024
    Applicant: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventors: Hongzhao DENG, Jing LIU, Hao CHEN, Linnan CHEN
  • Publication number: 20240151877
    Abstract: An optical film layer and a manufacturing method thereof, a polarizer, and a display panel are provided. The optical film layer includes a base layer and a group of particle layers arranged in the base layer. The group of particle layers includes multiple particle layers, and refractive indices of the multiple particle layers gradually decrease in a direction from a first side of the optical film layer to a second side of the optical film layer.
    Type: Application
    Filed: April 1, 2022
    Publication date: May 9, 2024
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Gang Liu, Weiheng Yang, Wei Wang
  • Publication number: 20240153438
    Abstract: The disclosure provides a pixel circuit, a pixel driving method, and a display device. The pixel circuit includes a driving module and a light emitting module. The light emitting module includes a first light emitting unit, a first light emitting element, a second light emitting unit, and a second light emitting element.
    Type: Application
    Filed: March 22, 2022
    Publication date: May 9, 2024
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Jialong Li
  • Publication number: 20240152003
    Abstract: Disclosed are a display panel, a method of manufacturing a display panel, and a photomask, wherein the display panel includes a substrate; a driving element layer disposed on a surface of the substrate; an organic layer disposed on a surface of the driving element layer away from the substrate, wherein the organic layer includes a plurality of first convex structures, and each of the first convex structures has an arcuate first sidewall from bottom to top; a reflective layer disposed on a side of the organic layer away from the driving element layer, wherein the reflective layer includes a plurality of second convex structures, each of the second convex structures includes a second side wall corresponding to the first side wall.
    Type: Application
    Filed: March 29, 2023
    Publication date: May 9, 2024
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Ying LU, Yingchun ZHAO, Wuguang LIU, Lixia LI
  • Publication number: 20240153421
    Abstract: The present disclosure discloses a driving circuit and a display device. The driving circuit of the present disclosure inputs a level signal to a first node under the control of a first signal control terminal and a second signal control terminal, and then outputs a signal of a first power supply terminal or a second power supply terminal to the output terminal under the control of the level signal of the first node, so as to output different level signals under the control of two the control signals, thereby resolving a problem that one timing controller cannot be directly matched with different gate driving chips in use.
    Type: Application
    Filed: April 18, 2022
    Publication date: May 9, 2024
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Jialong Li
  • Publication number: 20240152236
    Abstract: 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: Application
    Filed: April 24, 2022
    Publication date: May 9, 2024
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Zhitao Lu
  • Publication number: 20240152241
    Abstract: An embodiment of the present invention provides a touch display panel and a touch display device including an underlay substrate and touch electrodes. The touch electrodes include a plurality of pattern electrodes. Adjacent ones of the pattern electrodes along are arranged in a staggered arrangement a first direction. The pattern electrode has a first width along the first direction and has a second width along a second direction. The second width is greater than the first width. Changing an arrangement of the pattern electrodes reduces touch lead lines in the display panel, improves a touch precision of the display panel, and lowers a manufacturing cost.
    Type: Application
    Filed: April 13, 2022
    Publication date: May 9, 2024
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Zhitao Lu
  • Patent number: 11977296
    Abstract: A backlight module and a display device are provided. The backlight module includes a first data line, a second data line, and a light-emitting diode group. The light-emitting diode group includes two or more light-emitting diode units. A voltage at a connection point between a n-th light-emitting diode unit and the first data line is defined as Vn. A voltage at a connection point between the n-th light-emitting diode unit and the second data line is defined as Un. In response to Vi is greater than Vj, Ui is greater than Uj.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: May 7, 2024
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Lixia Li, Zhijuan Long
  • Patent number: 11977253
    Abstract: A backlight module and a display device are provided. The backlight module includes a plurality of light boards, wherein each light board includes at least two light source groups arranged at intervals. An overlap area of adjacent reflective sheets is located between adjacent light source groups in a same light board, and a splicing area of adjacent light boards is located in a non-overlap area of a same reflective sheet so that a protrusion of the reflective sheets in the overlap area will not reflect too much light to the splicing area, which solves a problem of uneven brightness at splicing positions of the light boards of current display products.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: May 7, 2024
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Jinfeng Liu
  • Patent number: 11977289
    Abstract: Provided are a wide-viewing-angle optical film, a manufacturing method of the wide-viewing-angle optical film, and a liquid crystal display device. The manufacturing method includes: providing a substrate and forming a first light-transmissive layer at one side of the substrate; performing light treatment on the first light-transmissive layer to form protrusions on a surface of the first light-transmissive layer; and forming a second light-transmissive layer on one side of the first light-transmissive layer away from the substrate, in which a refractive index of a material of the second light-transmissive layer is greater than a refractive index of a material of the first light-transmissive layer to obtain a wide-viewing-angle film including the first light-transmissive layer and the second light-transmissive layer stacked on each other.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: May 7, 2024
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yue Wang, Ji Li
  • Patent number: 11978409
    Abstract: The present disclosure provides a backlight driving circuit and a liquid crystal display device. The backlight driving circuit according to an embodiment of the present application adds a first transistor and a reset signal. The on-off of the second transistor is controlled by the scan signal to charge the storage capacitor, and the on-off of the first transistor is controlled by the reset signal to release the charge in the storage capacitor. The backlight driving circuit of the application can realize the backlight lighting individually row by row and improve the problem of display motion streak effect.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: May 7, 2024
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Jinfeng Liu
  • Patent number: 11978408
    Abstract: A backlight unit, a control method thereof, and a liquid crystal display device are provided. The control method includes following steps: obtaining backlight data corresponding to each of the partitions, the backlight data including multiple bits of data; dividing a frame of a lighting process of each light-emitting unit of the partitions into a plurality of sub-fields having different durations, wherein each of the sub-fields corresponds to one of the bits of data; and outputting the sub-fields having different durations corresponding to each of the partitions in a preset order.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: May 7, 2024
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventors: Fuyi Wang, Fengcheng Xu, Qingsheng Lan, Jinfeng Liu
  • Patent number: 11978414
    Abstract: The present application discloses a display panel and a display device. The display panel includes a first voltage dividing signal line, a second voltage dividing signal line, and a first subpixel group and a second subpixel group alternately arranged. The first subpixel group includes at least one column of first subpixels, and the second subpixel group includes at least one column of second subpixels. The first voltage dividing signal line is electrically connected to the first subpixels and is loaded with a first voltage dividing signal, and the second voltage dividing signal line is electrically connected to the second subpixels and is loaded with a second voltage dividing signal.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: May 7, 2024
    Assignees: HUIZHOU CHINA STAR OPTOELECTRONICS DISPLAY CO., LTD., TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Li Zhao
  • Patent number: 11979984
    Abstract: A splicing display screen is provided. The splicing display screen includes a circuit board, a plurality of display panels, and a plurality of first metal lines. The circuit board includes a plurality of circuit areas, and each of the circuit areas includes one of mounting areas and one of electrical connection areas. A plurality of first metal parts are disposed in the electrical connection areas. The display panels are disposed on the circuit board and positioned in the mounting areas, and metal connection pads on the display panels are electrically connected to the first metal parts by the first metal lines.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: May 7, 2024
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Changming Xiang
  • Publication number: 20240147607
    Abstract: A conductive film includes a substrate and a conductive layer. The conductive layer is disposed on the substrate and comprises a plurality of wires spaced apart and parallel to each other. At least one of the wires is provided with a stress dispersing structure. The stress dispersing structure is configured to disperse a stress generated when the conductive film is bent. A display panel comprises the conductive film.
    Type: Application
    Filed: April 15, 2022
    Publication date: May 2, 2024
    Applicant: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventors: Xin LIU, Hongyuan XU, Juncheng XIAO