Patents by Inventor Wu Cao

Wu Cao 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).

  • Publication number: 20210223642
    Abstract: The present invention provides a display panel. The display panel includes a substrate, a circuit layer, and a pixel layer. The circuit layer is arranged on the substrate and includes multiple data lines. The data lines are parallel to each other. The pixel layer is arranged on the circuit layer, and the pixel layer includes multiple shielding electrodes and multiple pixel electrodes. The shielding electrodes are arranged corresponding to the data lines, and each pixel electrode is placed between each two adjacent shielding electrodes. The shielding electrode includes multiple sub-shielding electrodes, and the sub-shielding electrodes are parallel to the data lines.
    Type: Application
    Filed: December 9, 2019
    Publication date: July 22, 2021
    Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Qi ZHANG, Wu CAO
  • Patent number: 11048130
    Abstract: The present invention provides a display panel, including data line wiring regions and pixel regions which are adjacent with one another. A data line is disposed in the data line wiring regions, a data line black matrix less (DBS) common electrode is located on the data line, a pixel electrode is disposed in the pixel regions on a same layer as the DBS common electrode, and an interval region is defined between the DBS common electrode and the pixel electrode. At least one of a side of the DBS common electrode close to the interval region and a side of the pixel electrode close to the interval region comprise a gradual changing protruding structure toward the interval region.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: June 29, 2021
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Wu Cao
  • Patent number: 10989963
    Abstract: The present disclosure provides a display panel comprising pixel units. Each of the pixel units has one or more first domains and one or more second domains. Each of the pixel units comprises a pixel electrode. The pixel electrode comprises first branches disposed in the one or more first domains at a first angle, and second branches disposed in the one or more second domains at a second angle. Every one or more first branches and every one or more second branches are staggered to form a zigzag structure between every first and second domains.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: April 27, 2021
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Wu Cao
  • Patent number: 10948790
    Abstract: A display panel manufacturing method and display panel are provided. By forming a first spacer on a first photoresist reservation region of a light-shielding layer and forming a second spacer on a second photoresist reservation region, photoresist material required to be removed is preserved to increase material usage rate such that display panel manufacturing processes are reduced and productivity is raised.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: March 16, 2021
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Wu Cao
  • Patent number: 10877323
    Abstract: A pixel electrode includes a first pixel electrode and a plurality of second pixel electrodes. Each of the second pixel electrodes includes a first sub-branch and a second sub-branch, one end of the second sub-branch is connected to the first pixel electrode, and the opposite end is connected to the first sub-branch. The first width of the first sub-branch is different from the second width of the second sub-branch. By changing a width of a branch at a junction with a trunk portion, it is possible to effectively control black stripes, thereby improving liquid crystal efficiency and a transmittance of a liquid crystal display panel.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: December 29, 2020
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Wu Cao
  • Patent number: 10802309
    Abstract: The flexible liquid crystal display panel include an upper substrate, a lower substrate and a liquid crystal layer; a plurality of sub-pixel regions are disposed on the lower substrate, and a retaining wall may be disposed around the sub-pixel region, and the retaining wall may define notches to allow the plurality of sub-pixel regions to be located the liquid crystals circulate when the flexible liquid crystal display panels are bent. In the above manner, the present application can ensure the uniformity of diffusion of the alignment liquid and the liquid crystal in the alignment liquid coating and liquid crystal filling processes.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: October 13, 2020
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Wu Cao
  • Patent number: 10782571
    Abstract: The disclosure provides the COA-type array substrate, which is realized by all or part of the outer edge of the color-resisting units are located on the first metal layer and/or the second metal layer, which is used for padding to reduce the topography difference at the outer edge position of the color-resisting units, so that the thickness of the photoresist coated on which is reduced to be easily removed by the exposure and development when the transparent conductive layer is patterned; in addition, both the first metal layer and the second metal layer have a reflective property, so that the exposure effect can be enhanced and the photoresist coated on which; the COA-type array substrate of the disclosure can eliminate or reduce the metal oxide residue at which through the above two effects and prevent the electrical signal of the pixel electrode from being uncontrollable.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: September 22, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Wu Cao
  • Publication number: 20200257174
    Abstract: A pixel electrode includes a first pixel electrode and a plurality of second pixel electrodes. Each of the second pixel electrodes includes a first sub-branch and a second sub-branch, one end of the second sub-branch is connected to the first pixel electrode, and the opposite end is connected to the first sub-branch. The first width of the first sub-branch is different from the second width of the second sub-branch. By changing a width of a branch at a junction with a trunk portion, it is possible to effectively control black stripes, thereby improving liquid crystal efficiency and a transmittance of a liquid crystal display panel.
    Type: Application
    Filed: May 13, 2019
    Publication date: August 13, 2020
    Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Wu CAO
  • Publication number: 20200201128
    Abstract: A liquid crystal display panel is disclosed and includes: a substrate, a plurality of data lines and gate lines disposed on the substrate, the data lines intersecting the gate lines to form a plurality of pixel units each including a metal pattern layer, a color resist, and a gate electrode light shielding structure; the metal pattern layer disposed on the substrate; the color resist covering the metal pattern layer; the gate electrode light shielding structure disposed on the gate lines to shield a gap between adjacent pixel units, an edge of the gate electrode light shielding structure located in the color resist and retracting away from the color resist to form a retraction portion reducing an extent of the color resist edge overlapping the light shielding structure edge to prevent a blocking wall of the protruding gate electrode light shielding structure from being excessively high and affecting later processes.
    Type: Application
    Filed: July 29, 2019
    Publication date: June 25, 2020
    Inventor: Wu CAO
  • Patent number: 10677971
    Abstract: An organic thin film structure is formed on a surface of a glass substrate. At least two color resist blocks are formed by patterning. A recess is formed between the two adjacent color resist blocks. Each of the color resist blocks has a lower color resist layer and an upper color resist layer formed on a surface of the lower color resist layer. A boundary of the upper color resist layer and a boundary the lower color resist layer are connected, and an angle between the boundaries and the surface of the glass substrate ranges from 10° to 60°.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: June 9, 2020
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Wu Cao
  • Patent number: 10495920
    Abstract: The disclosure provides a color filter substrate and a method thereof, comprising: a substrate, and a plurality of color filters and black matrix formed on the substrate; wherein at least one of the color filters and the black matrix form a partially overlapped structure, and a lateral contour of the film at the structure is a concave curve. By controlling a difference in an energy received by the photosensitive resin during the exposure, the taper angle of the top of the color filter is reduced, and the lateral contour is the concave curve which middle part is a pit, and the position of the concave curve is apt to produce the horns, which can effectively improve the horns bulged in the greater thickness of LCD of the organic thin film overlapped, and using a general FTM mask leads to a substantial reduction in cost, and high process controllability.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: December 3, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Wu Cao
  • Publication number: 20190346727
    Abstract: A display panel manufacturing method and display panel are provided. By forming a first spacer on a first photoresist reservation region of a light-shielding layer and forming a second spacer on a second photoresist reservation region, photoresist material required to be removed is preserved to increase material usage rate such that display panel manufacturing processes are reduced and productivity is raised.
    Type: Application
    Filed: August 22, 2018
    Publication date: November 14, 2019
    Inventor: Wu CAO
  • Publication number: 20190324312
    Abstract: The flexible liquid crystal display panel include an upper substrate, a lower substrate and a liquid crystal layer; a plurality of sub-pixel regions are disposed on the lower substrate, and a retaining wall may be disposed around the sub-pixel region, and the retaining wall may define notches to allow the plurality of sub-pixel regions to be located the liquid crystals circulate when the flexible liquid crystal display panels are bent. In the above manner, the present application can ensure the uniformity of diffusion of the alignment liquid and the liquid crystal in the alignment liquid coating and liquid crystal filling processes.
    Type: Application
    Filed: December 11, 2018
    Publication date: October 24, 2019
    Inventor: Wu Cao
  • Patent number: 10444572
    Abstract: The present invention provides a liquid crystal display panel and a manufacturing method thereof. The manufacturing method of the liquid crystal display panel according to the present invention uses a regular mask plate to subject multiple layers of photoresist films that are stacked on each other to patterning treatment with just one round of exposure and development process to form multiple photoresist layers that are stacked on each other, wherein the multiple stacked photoresist layers form photo spacers. Due to the multiple layers of photoresist films having different photosensitivity properties, the multiple photoresist layers, which are formed after being subjected to exposure and development, are of different patterns, wherein being of different patterns means there is a difference existing in at least one of parameters including upper end size, lower end size, and tapering angle.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: October 15, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Wu Cao
  • Publication number: 20190302551
    Abstract: The present disclosure relates to an array substrate. The array substrate includes a component layer and a covering layer disposed on the component layer. The covering layer includes at least one through hole, and at least two lateral sides of the at least one through hole have different declination angles with respect to a horizontal plane. A pixel electrode is formed on the covering layer, and the pixel electrode of the covering layer is connected to a source or a drain of the component layer via the at least one through hole.
    Type: Application
    Filed: July 20, 2018
    Publication date: October 3, 2019
    Inventor: Wu CAO
  • Patent number: 10423039
    Abstract: The present invention provides an array substrate and a manufacturing method thereof. The array substrate includes: a backing plate, a TFT layer arranged on the backing plate, a protective layer covering the backing plate and the TFT layer, a color resist layer arranged on the protective layer, an organic planarization layer set on and covering the color resist layer and the protective layer, and a BPS light-shielding layer arranged on the organic planarization layer. The BPS light-shielding layer includes: a black matrix and a main photo spacer and a sub photo spacer arranged on the black matrix. The organic planarization layer is formed with a first recess in an area thereof that corresponds to at least a part of the black matrix and the first recess is filled up with the black matrix.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: September 24, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Wu Cao, Minggang Liu, Zhuming Deng, Yunglun Lin
  • Publication number: 20190271869
    Abstract: A liquid crystal display panel is disclosed. The panel includes: an upper substrate, wherein an inner surface of the upper substrate is provided with a first spacer, and the first spacer includes a first flat portion and a first protrusion portion protruded from an end of the first flat portion, a lower substrate disposed oppositely to the upper substrate, wherein an inner surface of the upper substrate is provided with a second spacer, and the second spacer includes a second flat portion and a second protrusion portion protruded from an end of the second flat portion. During the process of aligning and assembling the upper substrate and the lower substrate, the first protrusion portion presses against the second flat portion and/or the second protrusion portion presses against the first flat portion in order to support and interlock the upper and lower substrates.
    Type: Application
    Filed: July 25, 2018
    Publication date: September 5, 2019
    Inventor: Wu CAO
  • Publication number: 20190250474
    Abstract: The present invention provides an array substrate and a manufacturing method thereof. The array substrate includes: a backing plate, a TFT layer arranged on the backing plate, a protective layer covering the backing plate and the TFT layer, a color resist layer arranged on the protective layer, an organic planarization layer set on and covering the color resist layer and the protective layer, and a BPS light-shielding layer arranged on the organic planarization layer. The BPS light-shielding layer includes: a black matrix and a main photo spacer and a sub photo spacer arranged on the black matrix. The organic planarization layer is formed with a first recess in an area thereof that corresponds to at least a part of the black matrix and the first recess is filled up with the black matrix.
    Type: Application
    Filed: April 24, 2019
    Publication date: August 15, 2019
    Inventors: Wu Cao, Minggang Liu, Zhuming Deng, Yunglun Lin
  • Patent number: 10345660
    Abstract: Disclosed is a manufacturing method of a photo spacer structure of an array substrate, including: forming first pad carriers and second pad carriers having height difference; depositing black photosensitive resin material to cover the first pad carriers and the second pad carriers; implementing exposure to the black photosensitive resin material through a mask, having light transmitting areas and light shielding areas, and light transmission adjusting parts are arranged corresponding to the second pad carriers, and implementing development to form main photo spacers on the first pad carriers, sub photo spacers on the second pad carriers and grooves or trenches in areas around the sub photo spacer with the light transmission adjusting parts; implementing a high-temperature baking and leveling treatment to the black photosensitive resin material to level and fill at least a portion of the resin material of the sub photo spacers to the grooves or the trenches.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: July 9, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Wu Cao
  • Publication number: 20190204667
    Abstract: The disclosure provides the COA-type array substrate, which is realized by all or part of the outer edge of the color-resisting units are located on the first metal layer and/or the second metal layer, which is used for padding to reduce the topography difference at the outer edge position of the color-resisting units, so that the thickness of the photoresist coated on which is reduced to be easily removed by the exposure and development when the transparent conductive layer is patterned; in addition, both the first metal layer and the second metal layer have a reflective property, so that the exposure effect can be enhanced and the photoresist coated on which; the COA-type array substrate of the disclosure can eliminate or reduce the metal oxide residue at which through the above two effects and prevent the electrical signal of the pixel electrode from being uncontrollable.
    Type: Application
    Filed: January 12, 2018
    Publication date: July 4, 2019
    Inventor: Wu CAO