Patents by Inventor Xiongping Li

Xiongping Li 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).

  • Patent number: 12253775
    Abstract: A display panel and display apparatus, display panel includes an array substrate. Array substrate includes substrate and has display region. Display region includes color filter, pixel electrode, and first transistor that are located on same side of substrate. First transistor includes first semiconductor layer. Along direction perpendicular to plane of substrate, color filter is located between first semiconductor layer and pixel electrode, and first semiconductor layer is electrically connected to pixel electrode through first connecting portion. First connecting portion includes first connecting sub-portion in first connecting hole. Orthographic projection of first connecting sub-portion on plane of substrate does not overlap with orthographic projection of color filter on plane of substrate. Along direction parallel to plane of substrate, first connecting sub-portion at least partially overlaps with color filter.
    Type: Grant
    Filed: May 9, 2024
    Date of Patent: March 18, 2025
    Assignee: Shanghai Tianma Microelectronics Co., Ltd.
    Inventors: Dandan Chu, Xiaodong Yang, Ye Yan, Jiandong Wang, Xiongping Li
  • Publication number: 20250044640
    Abstract: A direct-lit backlight module, a method of designing a backlight module and a display device are provided. The direct-light backlight module includes a substrate; an optical film layer; a reflector; and light-emitting elements. The substrate and the optical film layer are arranged oppositely; the light-emitting elements are arranged on a side of the substrate facing the optical film layer; the reflector is located between the substrate and the optical film layer and includes reflective structures surrounding the light-emitting elements; there is a gap between the reflective structures and the optical film layer, and there is air in the gap. In the thickness direction of the backlight module, a distance between one end of the reflective structure adjacent to the optical film layer and the optical film layer is OD1, and the distance between the substrate and the optical film layer is OD; and X = OD ? 1 OD ; and 0.4?X<0.6.
    Type: Application
    Filed: April 2, 2024
    Publication date: February 6, 2025
    Inventors: Xiongping LI, Ronghua LI, Hui LIU
  • Publication number: 20240404484
    Abstract: A display panel and a display apparatus, in the display panel, a pixel unit includes a plurality of sub-pixels, the sub-pixels in a same pixel unit are electrically connected to a same scan line and are each electrically connected to different data lines/the display panel further includes demultiplexers, each demultiplexer includes two output terminals connected to different data lines, and is configured to transmit data signals to different data lines. The plurality of sub-pixels of the same pixel unit include at least three sub-pixels with different colors. Accordingly, the pixel units need not to borrow sub-pixels from each other while achieving full-color display of the display panel, which is conducive to improving the stability of display quality, using 1:2 demultiplexers to transmit data signals to sub-pixels ensures that each sub-pixel has sufficient charging time, thereby being conducive to ensuring the display quality of the display panel.
    Type: Application
    Filed: August 15, 2024
    Publication date: December 5, 2024
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Ye YAN, Xiaodong YANG, Dandan CHU, Jiandong WANG, Xiongping LI
  • Publication number: 20240288727
    Abstract: A display panel and display apparatus, display panel includes an array substrate. Array substrate includes substrate and has display region. Display region includes color filter, pixel electrode, and first transistor that are located on same side of substrate. First transistor includes first semiconductor layer. Along direction perpendicular to plane of substrate, color filter is located between first semiconductor layer and pixel electrode, and first semiconductor layer is electrically connected to pixel electrode through first connecting portion. First connecting portion includes first connecting sub-portion in first connecting hole. Orthographic projection of first connecting sub-portion on plane of substrate does not overlap with orthographic projection of color filter on plane of substrate. Along direction parallel to plane of substrate, first connecting sub-portion at least partially overlaps with color filter.
    Type: Application
    Filed: May 9, 2024
    Publication date: August 29, 2024
    Applicant: Shanghai Tianma Microelectronics Co., Ltd.
    Inventors: Dandan CHU, Xiaodong YANG, Ye YAN, Jiandong WANG, Xiongping LI
  • Publication number: 20240282261
    Abstract: A display panel includes light-emitting devices and pixel circuits. The pixel circuit includes a driving module, a data writing module, and a light-emitting control module. In an embodiment, the pixel circuit comprises first working modes and second working modes. In an embodiment, the data writing module transmits different data voltages to the driving module in at least two of the first working modes. The data writing module transmits a same data voltage to the driving module in any one of the second working modes. Durations taken by the light-emitting control module to control the driving module to transmit a driving current to the light-emitting device in any one of the first working modes are the same. Durations taken by the light-emitting control module to control the driving module to transmit a driving current to the light-emitting device in at least two of the second working modes are different.
    Type: Application
    Filed: February 29, 2024
    Publication date: August 22, 2024
    Applicant: Shanghai Tianma Microelectronics Co., Ltd.
    Inventors: Xiongping LI, Yimiao DING, Ronghua LI, Zhenhai YIN, Rong ZHANG, Yuewei ZHANG
  • Publication number: 20240248302
    Abstract: A light filter, a head up display device, and a transport means are provided. The light filter has an optical transmission region and includes an optical layer group arranged in the optical transmission region. Transmittance of the optical layer group to light within a first waveband is greater than transmittance of the optical layer group to light within a second waveband. The optical layer group includes a first layer and a second layer that are stacked together. A refractive index of the first layer is different from a refractive index of the second layer. The first layer includes a metal layer.
    Type: Application
    Filed: April 2, 2024
    Publication date: July 25, 2024
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Fushun WAN, Lumang HU, Jiandong WANG, Xiongping LI
  • Publication number: 20240248303
    Abstract: A backlight assembly including a light source, a birefringent component and at least one first dimmer is described. In an embodiment, the birefringent component is configured to divide the light incident on the birefringent component into a first polarized light and a second polarized light. In an embodiment, a vibration direction of the first polarized light is different from a vibration direction of the second polarized light. In an embodiment, the birefringent component includes a first region and a second region. In an embodiment, the first polarized light corresponds to the first region, the second polarized light corresponds to the second region, and the first region and the second region at least partially do not overlap in an emission direction of the light. In an embodiment, the first polarized light propagates along a first direction, the second polarized light propagates along a second direction intersecting with the second direction.
    Type: Application
    Filed: April 3, 2024
    Publication date: July 25, 2024
    Applicant: Shanghai Tianma Microelectronics Co., Ltd.
    Inventors: Yang LIU, Jiandong WANG, Xiongping LI
  • Patent number: 12032234
    Abstract: Anti-peep display assembly and display device are provided. The anti-peep display assembly includes a backlight module, a first birefringence control type liquid crystal cell, a second birefringence control type liquid crystal cell, and a display liquid crystal cell. Along a thickness direction of the anti-peep display assembly, the first birefringence control type liquid crystal cell and the second birefringence control type liquid crystal cell are between the backlight module and the display liquid crystal cell, and the first birefringence control type liquid crystal cell is between the second birefringence control type liquid crystal cell and the backlight module. A first polarizer is arranged on a side of the display liquid crystal cell away from the second birefringence control type liquid crystal cell, and a second polarizer is arranged between the display liquid crystal cell and the second birefringence control type liquid crystal cell.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: July 9, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Zhiyuan Zhang, Xintong Ling, Fan Tian, Xiongping Li
  • Publication number: 20240085729
    Abstract: Anti-peep display assembly and display device are provided. The anti-peep display assembly includes a backlight module, a first birefringence control type liquid crystal cell, a second birefringence control type liquid crystal cell, and a display liquid crystal cell. Along a thickness direction of the anti-peep display assembly, the first birefringence control type liquid crystal cell and the second birefringence control type liquid crystal cell are between the backlight module and the display liquid crystal cell, and the first birefringence control type liquid crystal cell is between the second birefringence control type liquid crystal cell and the backlight module. A first polarizer is arranged on a side of the display liquid crystal cell away from the second birefringence control type liquid crystal cell, and a second polarizer is arranged between the display liquid crystal cell and the second birefringence control type liquid crystal cell.
    Type: Application
    Filed: February 13, 2023
    Publication date: March 14, 2024
    Inventors: Zhiyuan ZHANG, Xintong LING, Fan TIAN, Xiongping LI
  • Patent number: 11740389
    Abstract: Provided are a low reflection structure, a display panel, a display device, and a manufacturing method of a display panel. Related is the field of display technologies. The low reflection structure includes a first lens array, a second lens array, and a light blocking layer located between the first lens array and the second lens array. The first lens array includes multiple first convex lenses. The second lens array includes multiple second convex lenses. The light blocking layer includes a light blocking part and multiple light transmitting parts. The light blocking part at least partially surrounds the multiple light transmitting parts. An image focal plane of the first convex lens and an object focal plane of the second convex lens are within a same plane. A focus of each first convex lens of the multiple first convex lenses is located within a light transmitting part of the multiple light transmitting parts.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: August 29, 2023
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Yuefeng Gu, Jiandong Wang, Xiongping Li
  • Patent number: 11662613
    Abstract: Provided are a switchable viewing angle display module and a vehicle. The display module comprises a viewing angle switching panel, a liquid crystal display panel, and a driver circuit. The viewing angle switching panel includes a first substrate and a second substrate, a dye liquid crystal layer, and a drive electrode layer. The drive electrode layer is disposed on a side of the first substrate and/or the second substrate facing the dye liquid crystal layer. The drive electrode layer includes a plurality of drive electrodes arranged sequentially along a first direction, and an interval of a preset length is set between two adjacent ones of the plurality of drive electrodes. The driver circuit is electrically connected to the plurality of drive electrodes, respectively and configured to provide sequentially increasing drive voltages to the plurality of drive electrodes arranged sequentially along the first direction.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: May 30, 2023
    Assignee: Shanghai AVIC Optoelectronics Co., Ltd.
    Inventors: Qiang Dong, Xiaoping Sun, Xiongping Li, Qiongqin Mao
  • Publication number: 20230133786
    Abstract: A display panel, a method for manufacturing the display panel, and a display apparatus are described. In an embodiment, the display panel includes a display area and a non-display area; a substrate; an organic layer located at a side of the substrate and located in the display area and the non-display area, in which the organic layer includes a first portion located in the non-display area; and an organic layer protection structure located on a surface of the organic layer facing away from the substrate. In an embodiment, the organic layer protection structure includes a first structure in the display area and a second structure in the non-display area. In an embodiment, the second structure overlaps the first portion in a direction perpendicular to a plane of the substrate. In an embodiment, the first structure and the second structure are in direct contact with the organic layer.
    Type: Application
    Filed: December 27, 2022
    Publication date: May 4, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Xiaodong Yang, Meng Qu, Ye Yan, Lu Xie, Jiandong Wang, Xiongping Li, Shengchao Ji
  • Publication number: 20220229320
    Abstract: Provided are a switchable viewing angle display module and a vehicle. The display module comprises a viewing angle switching panel, a liquid crystal display panel, and a driver circuit. The viewing angle switching panel includes a first substrate and a second substrate, a dye liquid crystal layer, and a drive electrode layer. The drive electrode layer is disposed on a side of the first substrate and/or the second substrate facing the dye liquid crystal layer. The drive electrode layer includes a plurality of drive electrodes arranged sequentially along a first direction, and an interval of a preset length is set between two adjacent ones of the plurality of drive electrodes. The driver circuit is electrically connected to the plurality of drive electrodes, respectively and configured to provide sequentially increasing drive voltages to the plurality of drive electrodes arranged sequentially along the first direction.
    Type: Application
    Filed: April 5, 2022
    Publication date: July 21, 2022
    Applicant: Shanghai AVIC Optoelectronics Co., Ltd.
    Inventors: Qiang DONG, Xiaoping SUN, Xiongping LI, Qiongqin MAO
  • Patent number: 11315502
    Abstract: A backlight drive method, a backlight drive device, a backlight source system, and a display device are provided in the present disclosure. The backlight drive method is used to drive a light-emitting region of a backlight source of the display device. Driving the light-emitting region of the backlight source includes acquiring actual ambient brightness of an ambient where the display device is located. Driving the light-emitting region of the backlight source further includes determining a target backlight brightness range of light exited from the light-emitting region with reference to the actual ambient brightness, where the target backlight brightness range is within an intrinsic brightness range of the light-emitting region. Driving the light-emitting region of the backlight source further includes matching the target backlight brightness range to a plurality of gray levels preset in the light-emitting region.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: April 26, 2022
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Xiongping Li, Xiaoping Sun, Lihua Wang, Conghua Ma, Qiang Dong
  • Publication number: 20220099865
    Abstract: Provided are a low reflection structure, a display panel, a display device, and a manufacturing method of a display panel. Related is the field of display technologies. The low reflection structure includes a first lens array, a second lens array, and a light blocking layer located between the first lens array and the second lens array. The first lens array includes multiple first convex lenses. The second lens array includes multiple second convex lenses. The light blocking layer includes a light blocking part and multiple light transmitting parts. The light blocking part at least partially surrounds the multiple light transmitting parts. An image focal plane of the first convex lens and an object focal plane of the second convex lens are within a same plane. A focus of each first convex lens of the multiple first convex lenses is located within a light transmitting part of the multiple light transmitting parts.
    Type: Application
    Filed: December 30, 2020
    Publication date: March 31, 2022
    Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Yuefeng Gu, Jiandong Wang, Xiongping Li
  • Publication number: 20210375218
    Abstract: A backlight drive method, a backlight drive device, a backlight source system, and a display device are provided in the present disclosure. The backlight drive method is used to drive a light-emitting region of a backlight source of the display device. Driving the light-emitting region of the backlight source includes acquiring actual ambient brightness of an ambient where the display device is located. Driving the light-emitting region of the backlight source further includes determining a target backlight brightness range of light exited from the light-emitting region with reference to the actual ambient brightness, where the target backlight brightness range is within an intrinsic brightness range of the light-emitting region. Driving the light-emitting region of the backlight source further includes matching the target backlight brightness range to a plurality of gray levels preset in the light-emitting region.
    Type: Application
    Filed: July 20, 2020
    Publication date: December 2, 2021
    Inventors: Xiongping LI, Xiaoping SUN, Lihua WANG, Conghua MA, Qiang DONG
  • Patent number: 11060908
    Abstract: A display module and a method for monitoring backlight brightness are provided in the present disclosure. The display module includes a display region including an opening region and a non-opening region. The display module includes a backlight module and an array substrate. The array substrate is at a light-exiting side of the backlight module. The array substrate includes a plurality of gate lines which extends along a first direction and is arranged along a second direction, and further includes a plurality of data signal lines which is arranged along the first direction and extends along the second direction. The array substrate further includes a first substrate and at least one photosensitive unit, where the photosensitive unit is at a side of the first substrate away from the backlight module; and the photosensitive unit is disposed at the non-opening region for sensing a luminous brightness of the backlight module.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: July 13, 2021
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Kan Wang, Yang Nan, Xiongping Li, Xiaoping Sun, Meilin Wang
  • Publication number: 20210199500
    Abstract: A display module and a method for monitoring backlight brightness are provided in the present disclosure. The display module includes a display region including an opening region and a non-opening region. The display module includes a backlight module and an array substrate. The array substrate is at a light-exiting side of the backlight module. The array substrate includes a plurality of gate lines which extends along a first direction and is arranged along a second direction, and further includes a plurality of data signal lines which is arranged along the first direction and extends along the second direction. The array substrate further includes a first substrate and at least one photosensitive unit, where the photosensitive unit is at a side of the first substrate away from the backlight module; and the photosensitive unit is disposed at the non-opening region for sensing a luminous brightness of the backlight module.
    Type: Application
    Filed: April 10, 2020
    Publication date: July 1, 2021
    Inventors: Kan WANG, Yang NAN, Xiongping LI, Xiaoping SUN, Meilin WANG
  • Patent number: 10431601
    Abstract: A method for manufacturing an array substrate, and an array substrate, a display panel and a display device are provided. The method may include: forming, on one side of a substrate, a gate electrode layer, a gate insulation layer and a semiconductor layer, wherein the gate electrode layer has a same pattern as the semiconductor layer; forming an etching stop layer on the semiconductor layer; forming a first, second hole and third through holes by patterning the etching stop layer; forming a source electrode layer and a drain electrode layer on the etching stop layer, wherein the source electrode layer is electrically connected with the semiconductor layer via the first through hole, and the drain electrode layer is electrically connected with the semiconductor layer via the second through hole; forming an active layer by etching the semiconductor layer at the location corresponding to the third through hole.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: October 1, 2019
    Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Chuanzhi Xu, Zhengfang Xie, Xiongping Li, Xiaoyang Tong
  • Publication number: 20180323221
    Abstract: A method for manufacturing an array substrate, and an array substrate, a display panel and a display device are provided. The method may include: forming, on one side of a substrate, a gate electrode layer, a gate insulation layer and a semiconductor layer, wherein the gate electrode layer has a same pattern as the semiconductor layer; forming an etching stop layer on the semiconductor layer; forming a first, second hole and third through holes by patterning the etching stop layer; forming a source electrode layer and a drain electrode layer on the etching stop layer, wherein the source electrode layer is electrically connected with the semiconductor layer via the first through hole, and the drain electrode layer is electrically connected with the semiconductor layer via the second through hole; forming an active layer by etching the semiconductor layer at the location corresponding to the third through hole.
    Type: Application
    Filed: July 19, 2018
    Publication date: November 8, 2018
    Applicants: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Chuanzhi Xu, Zhengfang Xie, Xiongping Li, Xiaoyang Tong