Patents Examined by Paul C Lee
  • Patent number: 11550190
    Abstract: According to one embodiment, a display device comprises image signal lines, scanning signal lines, pixels, a display area, pixel electrodes, and common electrodes. The common electrodes are configured to detect an object and to display an image in the display area. The common electrodes include first and second common electrodes which are arranged in a first direction. A first slit is provided between the first and second common electrodes. The first and second common electrodes are supplied a signal different from each other. A second slit is provided in the first common electrode. Each of the first slit and the second slit overlaps one of the image signal lines and extends in an extension direction in which the image signal line extends.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: January 10, 2023
    Assignee: Japan Display Inc.
    Inventors: Kenta Seki, Gen Koide, Hayato Kurasawa
  • Patent number: 11550176
    Abstract: A display device, including a first polarizing film, a pixel array module, a second polarizing film, and a first electronically controlled phase retardation module, is provided. The pixel array module is disposed in overlap with the first polarizing film. The second polarizing film is disposed in overlap with the pixel array module. The first electronically controlled phase retardation module includes a first liquid crystal layer, two first alignment layers, and two first conductive layers. The first liquid crystal layer and the first alignment layers are disposed between the first conductive layers. The second polarizing film is located between the pixel array module and the first electronically controlled phase retardation module. One of the first polarizing film and the second polarizing film directly contacts one of the first conductive layers of the first electronically controlled phase retardation module. The display device has a switchable viewing angle and is thinner and lighter.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: January 10, 2023
    Assignee: Coretronic Corporation
    Inventors: Ming-Chuan Chih, Wen-Chun Wang
  • Patent number: 11536891
    Abstract: An optical waveguide includes an optical waveguide body having a beam in-coupling region and a beam coupling-out region, wherein: the beam in-coupling region is provided with a coupling grating configured to couple a beam into the optical waveguide body, and have the beam propagate in a total reflection manner in the optical waveguide body; the beam coupling-out region is provided with an out-coupling grating configured to couple the light beam propagating to the beam coupling-out region out of the optical waveguide body, such that the beam does not undergo secondary diffraction at the coupling grating and have continuous exit pupil expansion; and the out-coupling grating includes a transmissive out-coupling grating and a reflective out-coupling grating disposed on two sides of the optical waveguide body parallel to a beam propagation direction.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: December 27, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Sen Ma
  • Patent number: 11531239
    Abstract: An electronic device includes a panel including a first substrate, a second substrate, a liquid-crystal layer including a left-handed chiral dopant, a first polarizing plate, a second polarizing plate and a patterned electrode. The first polarizing plate has a first absorption axis perpendicular to a second absorption axis of the second polarizing plate. The patterned electrode has a sub-portion that includes a plurality of branch portions. A first included angle is between one of the branch portions and the first absorption axis. A second included angle is between one of the branch portions and the second absorption axis. While the patterned electrode is disposed between the first substrate and the liquid-crystal layer, the first included angle is greater than the second included angle. While the patterned electrode is disposed between the second substrate and the liquid-crystal layer, the first included angle is smaller than the second included angle.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: December 20, 2022
    Assignee: INNOLUX CORPORATION
    Inventors: Yi-Hsin Chen, Ying-Jen Chen
  • Patent number: 11526057
    Abstract: A liquid crystal device is provided with a first light shielding member, a second light shielding member, a third light shielding member, and a fourth light shielding member along four edges of a pixel electrode, respectively, and liquid crystal molecules are oriented so as to intersect a first direction and a second direction and head toward an intersection region of the third light shielding member and the fourth light shielding member. The pixel electrode covers a wall portion on a lower layer side, in a region overlapping with the third light shielding member and the fourth light shielding member. The wall portion includes a layered film including a first layer, and a second layer made of a material different from the first layer, and the first layer on a lower layer side is an etching stopper when the second layer is formed.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: December 13, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yukihiro Sugiura
  • Patent number: 11520176
    Abstract: A display device is provided and includes a first polymer substrate, a plurality of thin-film transistors, a second polymer substrate, and a liquid crystal layer. The thin-film transistors are disposed on the first polymer substrate. The second polymer substrate is disposed opposite to the first polymer substrate. The liquid crystal layer is disposed between the first polymer substrate and the second polymer substrate. The first polymer substrate has a first thickness, the second polymer substrate has a second thickness, and the first thickness is greater than the second thickness.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: December 6, 2022
    Assignee: InnoLux Corporation
    Inventors: Yu-Chih Tseng, Chu-Hong Lai
  • Patent number: 11520374
    Abstract: A liquid-crystal display (LCD) device includes: an array substrate on which a sub-pixel is disposed; a color filter substrate on which a color filter corresponding to the sub-pixel is disposed; and a liquid-crystal layer between the array substrate and the color filter substrate. The array substrate comprises a lens hole, the color filter substrate comprises a lens hole guide, and a diameter of the lens hole is smaller than an inner diameter of the lens hole guide.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: December 6, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jinwook Kwak, Julk Hong, Jangcheol Kim
  • Patent number: 11520177
    Abstract: The present invention relates to a display apparatus comprising a bottom chassis and a printed circuit board installed on the bottom chassis. The bottom chassis comprises a rear portion, a mounting boss protruding backwards from the rear portion, and a mounting groove concavely formed in one side of the mounting boss. The printed circuit board comprises a substrate portion in a plate shape, a through hole provided in the substrate portion to allow the rear end of the mounting boss to pass therethrough, and a solder applied to a partial area on one surface of the substrate portion, the partial area being adjacent to the through hole.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: December 6, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Byung Jin Lee, Min Seok Lee
  • Patent number: 11513382
    Abstract: Provided is a display device including a window layer including a transmission area and a bezel area adjacent to the transmission area, a color layer under the bezel area, an adhesive layer under the transmission area, and a display panel under the adhesive layer, wherein the color layer and the adhesive layer may not overlap in a direction perpendicular to the transmission area.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: November 29, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sejun Heo
  • Patent number: 11513391
    Abstract: An optical structure includes a high refractive-index layer and a low refractive-index layer laminated on the high refractive-index layer and having a refractive index lower than that of the high refractive-index layer, and is disposed on a display surface of a display device. An interface between the layers has a concave-and-convex shape, and each of a concavity and a convexity in the shape has a flat portion extending in a surface direction of the layers. A side surface of the concave-and-convex shape, which extends between the flat portions of the concavity and convexity, is a curved surface or a folded surface that is convex to the low refractive-index layer. A difference between a maximum angle and a minimum angle, which are defined between the side surface of the concave-and-convex shape and a normal direction of the layers, is not less than 3 degrees and not more than 60 degrees.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: November 29, 2022
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yosuke Ueba, Tatsuaki Inoue
  • Patent number: 11513395
    Abstract: Provided are a bandpass filter having a high light transmittance in a transmission band and a wide wavelength range showing a high transmittance in the transmission band, and a sensor.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: November 29, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Keisuke Kodama, Yujiro Yanai, Takeharu Tani, Shunya Katoh
  • Patent number: 11500240
    Abstract: A display panel includes a first substrate which includes a display device and a second substrate which is disposed on the first substrate. The second substrate covers a base layer, a color filter layer, a first sealing layer, a color control layer, a step compensating layer, and a second sealing layer. The base layer includes a display area and a non-display area adjacent to the display area. The color filter layer overlaps the display area in a plan view, and is disposed under the base layer. The first sealing layer covers the color filter layer. The color control layer overlaps the display area in the plan view, and is disposed under the first sealing layer. The step compensating layer overlaps the non-display area in the plan view, and is disposed under the base layer. The second sealing layer covers the color control layer and the step compensating layer.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: November 15, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jeongki Kim, Jang-Il Kim, Jong-Hoon Kim, YeoGeon Yoon, Seok-Joon Hong
  • Patent number: 11500255
    Abstract: Disclosed is an optical assembly having a first variable transmission layer comprising a first electro-optically active material between a first pair of substrates, a second variable transmission layer comprising a second electro-optically active material between a second pair of substrates, and an electronically switchable birefringent layer, that is capable of altering the phase of incident light, situated between the first and second variable transmission layers. The layers are arranged such that light passing through the optical assembly can be altered based on the voltage applied to each layer. The light transmission levels can be altered between maximally transmissive, minimally transmissive, and semi-transparent levels between the maximally and minimally transmissive levels.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: November 15, 2022
    Assignee: ALPHAMICRON INCORPORATED
    Inventors: Bahman Taheri, Pedro Coutino Soto
  • Patent number: 11493800
    Abstract: Ghost image formation due to reflections of image light by a display panel to an ocular lens may be suppressed by ensuring that the image light reflected by the lens does not get reflected by the display panel back towards the lens. To that end, the display panel may include a quarter-wave birefringent layer between the top polarizer of the display panel and a layer inside the display panel that the image light reflects from, such as a black grid layer or an active matrix layer.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: November 8, 2022
    Assignee: META PLATFORMS TECHNOLOGIES, LLC
    Inventors: Fenglin Peng, Dong Chen, Cheonhong Kim, Yusufu Njoni Bamaxam Sulai, Ying Geng, Jacques Gollier, Jianru Shi, Linghui Rao
  • Patent number: 11487169
    Abstract: A substrate and a display panel are provided, which relate to the technical field of display apparatus. The substrate includes an active area and a bonding area located outside the active area and close to an edge of the substrate, wherein a bonding electrode is disposed within the bonding area, a first lead extending toward the edge of the substrate is connected to one side of the bonding electrode toward the edge of the substrate, and the first lead includes a curved section close to the bonding electrode and a straight section close to the edge of the substrate.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: November 1, 2022
    Assignees: Fuzhou BOE Optoelectronics Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Xu Xu, Shanshan Xu, Wenchao Wang, Xin Fang
  • Patent number: 11480822
    Abstract: A display substrate, a method for manufacturing the same, and a display device are provided. The display substrate includes a base substrate, a black matrix pattern on the base substrate, display units respectively in regions defined by the black matrix pattern, and a light-reflecting wall between at least two adjacent display units, where at least one of the at least two adjacent display units is a quantum dot display unit, and a reflectance of the light-reflecting wall to light in a first wavelength range is greater than a preset threshold.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: October 25, 2022
    Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Ge Shi, Shiyu Zhang, Ming Zhu, Haijun Niu, Yujie Liu, Zheng Fang, Yuyao Wang, Xiaochuan Chen
  • Patent number: 11474385
    Abstract: An electrically dynamic window structure may include first and second panes of transparent material and an electrically controllable optically active material positioned between the two panes. A driver can be electrically connected to electrode layers carried by the two panes. The driver may be configured to alternate between a drive phase in which a drive signal is applied to the electrode layers and an idle phase in which the drive signal is not applied to the electrode layers. The electrically controllable optically active material can maintain its transition state during the idle phase. As a result, the power consumption of the structure may be reduced as compared to if the driver continuously delivers the drive signal.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: October 18, 2022
    Assignee: Cardinal IG Company
    Inventors: Hari Atkuri, Eric Bjergaard
  • Patent number: 11474402
    Abstract: The present application provides a color film substrate, a display device, and a color film substrate fabricating method. The color film substrate comprises a display region and a non-display region, wherein the color film substrate in the non-display region comprises: a base; and a photoresist layer disposed on the base; a planarization layer disposed on a side of the photoresist layer away from the base; a support layer disposed on a side of the planarization layer away from the base; wherein a total thickness of the photoresist layer, the planarization layer, and the support layer is greater than or equal to a first thickness threshold.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: October 18, 2022
    Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Xianshu Yu, Lei Guo
  • Patent number: 11460737
    Abstract: A display device with less light leakage and excellent contrast is provided. A display device having a high aperture ratio and including a large-capacitance capacitor is provided. A display device in which wiring delay due to parasitic capacitance is reduced is provided. A display device includes a transistor over a substrate, a pixel electrode connected to the transistor, a signal line electrically connected to the transistor, a scan line electrically connected to the transistor and intersecting with the signal line, and a common electrode overlapping with the pixel electrode and the signal line with an insulating film provided therebetween. The common electrode includes stripe regions extending in a direction intersecting with the signal line.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: October 4, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Ryo Hatsumi, Daisuke Kubota, Hiroyuki Miyake
  • Patent number: 11448921
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, and a vertical alignment-type liquid crystal layer. The first substrate includes source lines and pixel electrodes. A pixel includes first, second, third and fourth liquid crystal domains. The pixel electrode has slits formed therein. The first substrate further includes a shield common electrode. The shield common electrode is located between the source lines and the pixel eleotrodes. The shield common electrode includes a solid portion overlapping the source lines and one end portion and the other end portion, in a row direction, of the pixel electrode, and also includes a first cutout portion formed across regions corresponding to the first, second, third and fourth liquid crystal domains in each pixel, the first cutout portion including portions overlapping the slits.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: September 20, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Mitsuaki Hirata