Patents Examined by Charles S Chang
  • Patent number: 12147104
    Abstract: A display device includes a driver circuit on a display panel, a conductive frame that is disposed behind the display panel and supplies a frame ground, a control printed board disposed behind the conductive frame, and a conductive shield cover covering at least a part of the back face of the control printed board. The control printed board includes a front ground pad and a backside ground pad. The front ground pad is electrically connected to the back face of the conductive frame. The backside ground pad is electrically connected to the conductive shield cover. A part of an end of the conductive shield cover is electrically connected to the partial region.
    Type: Grant
    Filed: April 17, 2024
    Date of Patent: November 19, 2024
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Noboru Okuzono, Hitoshi Hiratsuka, Katsuhiro Ito
  • Patent number: 12149649
    Abstract: The present disclosure provides a driving control module, a driving control method, a double-layer panel, and a display device. The driving control module is applied to the double-layer panel, the double-layer panel includes a first panel and a second panel, the first panel is a touch display panel, the second panel is a display panel, and the driving control module includes a control circuitry. The control circuitry is electrically coupled to the first panel and the second panel, and configured to control a touch stage of the first panel to be arranged within a spacing stage of the second panel, the first panel is configured to perform touch detection in the touch stage, and the spacing stage includes at least one of a scanning blank stage, a frame start time of image display time period, and a frame end time of the image display time period.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: November 19, 2024
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pengtao Li, Rui Han, Jie Yu, Qing Ma, Daekeun Yoon, Dong Cui, Li Tian
  • Patent number: 12142617
    Abstract: An object is to provide a pixel structure of a display device including a photosensor which prevents changes in an output of the photosensor and a decrease in imaging quality. The display device has a pixel layout structure in which a shielding wire is disposed between an FD and an imaging signal line (a PR line, a TX line, or an SE line) or between the FD and an image-display signal line in order to reduce or eliminate parasitic capacitance between the FD and a signal line for the purpose of suppressing changes in the potential of the FD. An imaging power supply line, image-display power supply line, a GND line, a common line, or the like whose potential is fixed, such as a common potential line, is used as a shielding wire.
    Type: Grant
    Filed: August 10, 2023
    Date of Patent: November 12, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeshi Aoki, Yoshiyuki Kurokawa, Takayuki Ikeda, Hikaru Tamura
  • Patent number: 12140834
    Abstract: An optical system includes a display, a backlight configured to emit at least a light in a first wavelength range extending between about 400 nm and about 500 nm, and an optical film disposed adjacent the backlight and configured to absorb a light in a second wavelength range extending between about 415 nm to about 455 nm, wherein a ratio of the light in the second wavelength range transmitted by the optical film to the light in the first wavelength range transmitted by the optical film is less than or equal to 50%.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: November 12, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Hideaki Shirotori, Naota Sugiyama, Taiki Ihara, Hiroki Hayashi
  • Patent number: 12135475
    Abstract: A display device includes a display layer emitting light. An infrared reflective layer is disposed on the display layer. An optical pattern is disposed on the infrared reflective layer. The optical pattern absorbs at least a portion of infrared light.
    Type: Grant
    Filed: July 12, 2023
    Date of Patent: November 5, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Young Lee, Da Som Gu, Ki Jun Roh, Gil Yeong Park, Sung Guk An, So Yeon Han
  • Patent number: 12130432
    Abstract: There is provided a head-up display device including an indicator that emits display light, a concave mirror that is rotatable about a rotation shaft and reflects the display light from the indicator to project a display image, a motor that has a shaft portion disposed coaxially with the rotation shaft of the concave mirror and rotates the shaft portion about an axis when energized, a connecting member that connects the shaft portion of the motor and the rotation shaft of the concave mirror and rotates the concave mirror at the same rotation angle as a rotation angle of the rotation shaft, and a control board that controls the motor. The control board controls rotation of the motor by half-step drive or micro-step drive.
    Type: Grant
    Filed: December 28, 2023
    Date of Patent: October 29, 2024
    Assignee: YAZAKI CORPORATION
    Inventors: Yusuke Fujimoto, Akira Yamanaka, Yuta Miyake
  • Patent number: 12117689
    Abstract: The present application provides a polarizer and a liquid crystal display device. The polarizer includes a resin layer, the resin layer includes a whisker, an acute angle is formed by a long-axis direction of each of the whiskers and a bottom surface of the resin layer, and the acute angle is greater than 0° and less than or equal to 40°.
    Type: Grant
    Filed: June 21, 2023
    Date of Patent: October 15, 2024
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Ji Li, Hanming Li, Guang Zeng, Fang Tan, Hongshan Yin, Kai Chen
  • Patent number: 12120935
    Abstract: A display device includes a first substrate, a pixel structure, a first optical filter, a first-color filter, a second optical filter, a second-color filter, and a second substrate. The pixel structure is disposed between the first substrate and each of the optical filters. The first-color filter is disposed on the first optical filter and has a first refractive index. The second optical filter is spaced from the first optical filter and includes a second-color pigment. The second-color filter is disposed on the second optical filter and has a second refractive index. The second substrate is disposed on the first color filter and the second color filter and has a third refractive index. A difference between the third refractive index and the second refractive index is less than a difference between the third refractive index and the first refractive index.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: October 15, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Inseok Song, Gak Seok Lee, Keunchan Oh, Byung-Chul Kim, Jang Wi Ryu, Halim Ji
  • Patent number: 12099269
    Abstract: An optically addressable light valve comprises a first transparent conductor layer, a layer of liquid crystal, and a photoconductor comprising an ultrawide band gap (UWBG) semiconductor. The liquid crystal is between the first transparent conductor layer and the semiconductor photoconductor. The optically addressable light valve is configured to apply a voltage across the liquid crystal and the UWBG semiconductor. A second transparent conductor may be formed in the UWBG semiconductor in some configurations, and the voltage may be applied across the first and second transparent conductor.
    Type: Grant
    Filed: December 15, 2023
    Date of Patent: September 24, 2024
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Bikramjit Chatterjee, Lars F. Voss, Clint Frye
  • Patent number: 12092924
    Abstract: A display apparatus includes: a display panel; and a light source device configured to provide light to the display panel, wherein the light source device may include: an optical member; a substrate including a first side facing the display panel and the optical member; a light source provided on the first side of the substrate; a driving element provided on the first side of the substrate and configured to drive the light source; a plurality of lines provided on the first side of the substrate, the plurality of lines including a first line and a second line that is connected to the driving element; and a jumper supporter provided on the first side of the substrate in an area where the first line intersects the second line, the jumper supporter being configured to support the optical member, to electrically connect the first line, and to guide the second line to be spaced apart from the first line.
    Type: Grant
    Filed: November 21, 2023
    Date of Patent: September 17, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyukjun Jang, Sungyeol Kim, Hyungsuk Kim, Youngmin Lee, Junsung Choi
  • Patent number: 12092847
    Abstract: Provided is a circularly polarizing plate with which, in a case where a display device obtained by disposing the circularly polarizing plate on a display element is viewed from an oblique direction while the direction thereof is being changed, the display device exhibits little change in tint and has a low reflectivity; and an organic electroluminescent display device. The circularly polarizing plate includes a polarizer and an optically anisotropic layer, in which the optically anisotropic layer is a layer formed by fixing a liquid crystal compound having reverse wavelength dispersibility twist-aligned with a thickness direction as a helical axis, the molecular axis of the liquid crystal compound in the optically anisotropic layer is horizontal to the surface of the optically anisotropic layer, and the twisted angle of the twist-aligned liquid crystal compound is 15° to 360°.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: September 17, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Shinpei Yoshida, Yuta Takahashi
  • Patent number: 12085826
    Abstract: An LCoS display pixel structure is disclosed. According to at least one embodiment, the present disclosure provides an LCoS display pixel structure which implements a pattern or geometry having an analog pixel structure in a display having micro-display LCoS structures.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: September 10, 2024
    Assignee: LIGAS TECHNOLOGY INC.
    Inventor: Chang Man Khang
  • Patent number: 12078878
    Abstract: A viewing angle control liquid crystal panel includes: a first polarizer having a first absorption axis; a first liquid crystal panel including a first substrate, a first liquid crystal layer, and a second substrate; a second liquid crystal panel including a third substrate, a second liquid crystal layer, and a fourth substrate; and a third liquid crystal panel including a fifth substrate, a third liquid crystal layer, and a sixth substrate. The following equations are satisfied, where ?P1 is an azimuth angle of the first absorption axis and ?1, ?2, ?3, ?4, ?5, and ?6 are azimuth angles of directors of liquid crystal molecules on first, second, third, fourth, fifth, and sixth substrate sides: 0°?|?1??2|?5° 0°?|?P1??1|?5° 0°?|?3??4|?5° 0°?|?5??6|?5°.
    Type: Grant
    Filed: January 18, 2024
    Date of Patent: September 3, 2024
    Assignee: Sharp Display Technology Corporation
    Inventors: Koji Murata, Akira Hirai, Takashi Satoh, Akira Sakai, Kiyoshi Minoura
  • Patent number: 12078887
    Abstract: A display apparatus including a liquid crystal panel; and a backlight unit configured to emit light to the liquid crystal panel is provided. The backlight unit includes a bottom chassis; a first interface board disposed on a front surface of the bottom chassis; a plurality of light source modules disposed on the front surface of the bottom chassis, arranged at predetermined intervals, and each of the plurality of light source modules having one end connected to the first interface board; and a second interface board disposed on a rear surface of the bottom chassis and connected to the first interface board.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: September 3, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youngmin Lee, Sungyeol Kim, Hyungsuk Kim, Seungyong Shin, Kyehoon Lee
  • Patent number: 12066731
    Abstract: A liquid crystal display device includes a transistor, a pixel electrode, and a common electrode. The transistor includes a first gate electrode on a first substrate, a second gate electrode having a region overlapping the first gate electrode, an oxide semiconductor layer between the first gate electrode and the second gate electrode, a first insulating layer between the first gate electrode and the oxide semiconductor layer, a second insulating layer between the oxide semiconductor layer and the second gate electrode, and a first oxide conductive layer and a second oxide conductive layer disposed between the first insulating layer and the oxide semiconductor layer and disposed with the first gate electrode and the second gate electrode sandwiched from both sides. The pixel electrode is disposed between the first and the second insulating layer; the common electrode is disposed a region overlapping with the pixel electrode and on the second insulating layer.
    Type: Grant
    Filed: April 12, 2023
    Date of Patent: August 20, 2024
    Assignee: MIKUNI ELECTRON CORPORATION
    Inventor: Sakae Tanaka
  • Patent number: 12055815
    Abstract: A display system and a lens assembly for eliminating color dispersion thereof is disclosed. The lens assembly includes a first concave lens, a circular polarizer, and a magnifying convex lens assembly. The first concave lens has a light-receiving surface and a concave surface opposite to each other. The light-receiving surface is a plane or a convex surface. The circular polarizer may be arranged on the concave surface of the first concave lens to have a curved shape corresponding to the concave surface. The magnifying convex lens assembly is arranged on the circular polarizer through an optical adhesive. The first concave lens, the circular polarizer, and the magnifying convex lens assembly are sequentially arranged along an optical axis. When the light-receiving surface is a convex surface, the circular polarizer is arranged on the light-receiving surface to have a curved surface corresponding to the convex surface.
    Type: Grant
    Filed: March 16, 2023
    Date of Patent: August 6, 2024
    Assignee: Interface Advanced Technology (Chengdu) Co., Ltd.
    Inventor: Shang Yu Huang
  • Patent number: 12058924
    Abstract: A test substrate has at least one test region and includes a base substrate, a plurality of thin film transistors disposed on the base substrate, at least one test hole located in the test region, and at least one test pin. At least one of the thin film transistors is a target thin film transistor to be tested, each target thin film transistor is located in one test region. Each test hole exposes a source region, a drain region or a gate of a corresponding target thin film transistor at a bottom thereof. Each test pin is located in one test hole. One end of the test pin passes through the test hole to be coupled to the source region, the drain region or the gate of the corresponding target thin film transistor, and another end of the test pin is exposed at a surface of the test substrate.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: August 6, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lei Fan, Zheng Bao
  • Patent number: 12050375
    Abstract: Examples are disclosed that relate to securing a display screen of a display device to a body of the display device. One example provides a display device including a body, a display screen, and a connecting structure comprising a tab component having one or more tabs, the tab component being coupled to one of the display screen and the body, a hook component including one or more hooks complementary to the one or more tabs, the hook component coupled to the other of the display screen and the body, the tab component and the hook component being moveable relative to one another to selectively engage the one or more tabs with the one or more hooks, and an actuation mechanism accessible from an exterior side of the body, the actuation mechanism being actuatable to engage the tab component and the hook component.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: July 30, 2024
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Colin Michael Ravenscroft, Jason Dale Brown, Shannon Elizabeth Miller
  • Patent number: 12044945
    Abstract: Improved electrophoretic media including a first particle of a first polarity and three particles of the opposite polarity, wherein the first particle and optionally one of the particles of the opposite polarity undergo a diminution of electrophoretic mobility with increased electric field. Such electrophoretic media enable full-color displays with very fast updates between white and black pixels.
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: July 23, 2024
    Assignee: E Ink Corporation
    Inventors: Stephen J. Telfer, Yuval Ben-Dov, Teck Ping Sim, Sherry Hsin-Yi Tsai
  • Patent number: 12044926
    Abstract: A display device is provided. The display device includes: a display panel; a frame disposed at a rear of the display panel; a substrate and an optical assembly which are disposed between the display panel and the frame and are disposed on the frame, wherein the frame includes: a bottom having a first optical distance from the display panel; and a side support having a second optical distance, which is smaller than the first optical distance, from the display panel, wherein the substrate includes: a first plurality of substrates disposed on the bottom of the frame; and a second plurality of substrates disposed on the side support of the frame, wherein a spacing between the first plurality of substrates is greater than a spacing between the second plurality of substrates.
    Type: Grant
    Filed: November 14, 2023
    Date of Patent: July 23, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Chanseob Shin, Woongjoon Hwang, Uihyung Lee, Baekki Lee