Patents Examined by James A. Dudek
  • Patent number: 10739641
    Abstract: A liquid crystal display device is provided in which a tint change in case of being seen from an oblique direction at the time of black display is suppressed. The liquid crystal display device includes: a liquid crystal cell and a pair of polarizing plates that are disposed such that the liquid crystal cell is interposed between the pair of polarizing plates, in which a tilt angle of the liquid crystal compound is 1.0° or less, respective color filters that are disposed on respective pixel regions of the liquid crystal cell are provided between the pair of polarizing plates, Rth of the respective color filters satisfy predetermined requirements, the polarizing plate that is disposed on the visible side among the pair of polarizing plates includes an optical compensation layer and a polarizer in this order from the liquid crystal cell side, and the optical compensation layer satisfies a predetermined requirement.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: August 11, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Tatsuya Iwasaki, Masaaki Suzuki, Katsufumi Ohmuro
  • Patent number: 10739650
    Abstract: An electro-optical liquid crystal cell comprising a first substrate, a first layer of indium tin oxide (ITO) on the first substrate, a first layer of h-BN on the first layer of ITO on the first substrate, and a layer of liquid crystal on the first layer of h-BN on the first layer of ITO on the first substrate. Furthermore, the electro-optical liquid crystal cell can comprise a second layer of h-BN, a second layer of ITO, and a second substrate. This h-BN cell exhibits the required electro-optic effect needed for a liquid crystal display. This h-BN cell exhibits high optical transmission.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: August 11, 2020
    Assignee: The Government of the United States of America, as represented the Secretary of the Navy
    Inventor: Rajratan Basu
  • Patent number: 10732468
    Abstract: A liquid crystal display device includes a first substrate, a pixel electrode which is disposed on the first substrate and comprises a first sub-pixel electrode and a second sub-pixel electrode adjacent to the first sub-pixel electrode along a first direction, and a shielding electrode which is disposed on the same layer as the pixel electrode and comprises a first area having a first width and a second area having a second width which is smaller than the first width along a second direction which crosses the first direction, and the first sub-pixel electrode may be adjacent to the first area along the second direction, and the second sub-pixel electrode may be adjacent to the second area along the second direction.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: August 4, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ho Kil Oh, Hoon Kim, Ki Chul Shin
  • Patent number: 10725355
    Abstract: An object of the present invention is to enhance a display quality of a liquid crystal display panel by causing a contour of a display region not to be noticeable. A display region of a liquid crystal display panel (100) includes a normal display region (101a) and a boundary display region (101c), an image being displayed more darkly in the boundary display region (101c), which is in contact with a black light blocking part (101b), than in the normal display region (101a).
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: July 28, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masayuki Kanehiro, Youhei Nakanishi
  • Patent number: 10725348
    Abstract: A display panel includes a first substrate having a top surface and a side surface extending in a direction intersecting the top surface, a second substrate, an insulating layer disposed between the first substrate and the second substrate, a first insulating structure disposed between the insulating layer and the first substrate and being in contact with the insulating layer, a pixel, a signal line having a side surface substantially aligned with the side surface of the first substrate and disposed on the first substrate, a second insulating structure overlapping the signal line, being in contact with the first insulating structure, and having a side surface substantially aligned with the side surface of the first substrate, and a connection pad being in contact with the side surface of the first substrate, the side surface of the signal line, and the side surface of the second insulating structure.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: July 28, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seungki Song, Chansol Yoo, Jinjoo Ha, Joonhyeong Kim
  • Patent number: 10705374
    Abstract: An optical member including a light guide plate, a low refractive layer disposed on an upper surface of the light guide plate and having a lower refractive index than the light guide plate, a wavelength conversion layer disposed on the low refractive layer, a passivation layer disposed on the wavelength conversion layer and covering a side surface of the wavelength conversion layer and a side surface of the low refractive layer, and an optical pattern formed on a lower surface of the light guide plate.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: July 7, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Won Lee, Seong Yong Hwang, Tae Gil Kang, Sung Hoon Kim, Eun Guk Lee
  • Patent number: 10705369
    Abstract: A liquid crystal display device including: a substrate; a thin film transistor on the substrate; a pixel electrode and a common electrode on the substrate; a first liquid crystal pattern in the first sub-pixel on the pixel electrode and the common electrode, the first liquid crystal pattern including a first liquid crystal molecule; a second liquid crystal pattern in the second sub-pixel on the pixel electrode and the common electrode, the second liquid crystal pattern including a second liquid crystal molecule; and a third liquid crystal pattern in the third sub-pixel on the pixel electrode and the common electrode, the third liquid crystal pattern including a third liquid crystal molecule, wherein the first, second and third liquid crystal molecules have different refractive index anisotropies from each other.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: July 7, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Eun-Woo Lee, Min-Geun Choi
  • Patent number: 10690950
    Abstract: A touch display device includes a touch display module. The touch display module includes a TFT substrate, a color filtering substrate, and a liquid crystal layer encapsulated between the TFT substrate and the color filtering substrate. A first electrode layer is formed on a surface of the color filtering substrate facing the TFT substrate. A second electrode layer is formed on a surface of the TFT substrate facing the color filtering substrate. The touch display device further includes at least one supporting element on a side of the touch display module. The supporting element is elastic and configured for elastically resisting against the touch display module.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: June 23, 2020
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yu-Fu Weng, Chien-Wen Lin, Chia-Lin Liu, Tzu-Yu Cheng
  • Patent number: 10690977
    Abstract: A display panel includes a top substrate having a top surface, a plurality of protrusions disposed on the top surface of the top substrate, an antireflective layer disposed on the top surface of the top substrate, a light shielding layer, a bottom substrate positioned at a side of the top substrate opposite to the top surface of the top substrate, and a display medium layer disposed between the top substrate and the bottom substrate. A first projection of the light shielding layer onto the top substrate is completely located within a second projection of the antireflective layer onto the top substrate, and a bottom surface of the light shielding layer is nonplanar to cover the plurality of protrusions.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: June 23, 2020
    Assignee: Himax Display, Inc.
    Inventor: Po-Hung Pan
  • Patent number: 10690940
    Abstract: This invention discloses methods and apparatus for providing a variable aperture insert into a lens. A liquid crystal layer may be used to provide a variable aperture function and in some examples. In other examples, electrochromic, photochromic, liquid meniscus or electroactive elastomeric devices may form a light blocking element of a variable aperture insert. In some examples, an ophthalmic lens is cast-molded from a silicone hydrogel including a variable aperture insert.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: June 23, 2020
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Randall B. Pugh, Frederick A. Flitsch, Praveen Pandojirao
  • Patent number: 10684504
    Abstract: Provided is a liquid crystal display device comprising: a light source having a wide color reproduction range; a liquid crystal panel; and a polarizing plate arranged on the visible side of the liquid crystal panel, wherein the polarizing plate comprises a polarizer and a polarizer protecting film; the polarizer protecting film comprises a polyester base film having an in-plane phase difference of 8,000 nm or higher at a wavelength of 550 nm and a primer layer formed on at least one surface of the polyester base film; and a coating layer having a lower refractive index than the primer layer is additionally formed on a surface of the primer layer.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: June 16, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jin Woo Kim, Yi Eun Kim, Min Jeong Park, Kwang Ho Shin, Ji Hyun Wi, Ji Hyun Hwang
  • Patent number: 10670910
    Abstract: A display device includes an optical stack arrangement including from the viewing side: a front polarizer; a first electrode layer; a viewing side bistable liquid crystal (LC) alignment layer; an LC layer; a non-viewing side bistable LC alignment layer; a second electrode layer; and a rear polarizer. The bistable LC alignment layers induce alignment of LC molecules of the LC layer adjacent to respective surfaces of the bistable LC alignment layers. The non-viewing side bistable LC alignment layer is switchable between two stable LC alignment states and the viewing side bistable LC alignment layer is also switchable between two stable LC alignment states. A combination of structural parameters of the viewing side and non-viewing side bistable LC alignment layers and the front and rear polarizers renders the display device operable to achieve four stable distinct optical states, each stable distinct optical state having a different optical response when viewed from the viewing side of the display device.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: June 2, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Nathan James Smith, Andrew Acreman
  • Patent number: 10670797
    Abstract: A display panel is provided. The display panel includes a display layer, a light diffusion layer, and a light guide plate. The display layer is used to display an image. The light guide plate is disposed under the display layer. The light guide plate guides a light of a back light source to the display layer. The light diffusion layer is disposed between the display layer and the light guide plate. The light diffusion layer is controlled by at least one control voltage, so as to dynamically change the transparency of the light diffusion layer.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: June 2, 2020
    Assignee: Acer Incorporated
    Inventor: Jin-Ting Kuo
  • Patent number: 10670931
    Abstract: A display device includes: a first substrate having a top surface and a first side surface extending from the top surface; a second substrate facing the first substrate and having a second side surface aligned with the first side surface; substrate signal pads disposed on the first side surface; substrate dummy pads disposed on the second side surface; a circuit film facing the first and second side surfaces; circuit dummy pads disposed on the circuit film and electrically connected to the substrate dummy pads; and circuit signal pads disposed on the circuit film and electrically connected to the substrate signal pads.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: June 2, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventor: Chang Soo Lee
  • Patent number: 10663776
    Abstract: A display component controls a viewing angle in a display system that achieves a strong private mode and enhanced brightness in the private and public modes as compared to conventional configurations. A display system that is operable in the private mode and the public mode includes the display component in combination with an image panel.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: May 26, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hywel Hopkin, Nathan James Smith, Andrew Acreman, Emma Jayne Walton
  • Patent number: 10663786
    Abstract: In a liquid crystal display device including a liquid crystal panel displaying an image and an LED and an IC driver which is a heat generating component generating heat during operation, the liquid crystal panel includes a pair of substrates that are disposed opposite each other, and a liquid crystal layer containing liquid crystal molecules and sealed between the pair of substrates, and a transparent thermal conducing sheet is disposed such that a part thereof is continuous from the LED and the IC driver and another part thereof is directly in contact with a TFT substrate to cover a display area.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: May 26, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yohji Kuwamura, Kohichi Ohhara, Takuya Handa
  • Patent number: 10663812
    Abstract: A driving potential is given to the first electrodes and the third electrodes, respectively. A common potential is given to the second electrodes and the fourth electrodes, respectively. Each of the third electrodes is located at a layer closer to the liquid crystal as compared to the second electrodes, and intersects with one of the second electrodes through an insulating layer. Each of the fourth electrodes is located at a layer closer to the liquid crystal as compared to the first electrodes, and intersects with one of the first electrodes through an insulating layer. A width of the third electrodes is the same as each other at respective intersections of the the third electrodes and the the second electrodes. A width of the fourth electrodes is the same as each other at respective intersections of the the fourth electrodes and the the first electrodes.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: May 26, 2020
    Assignee: TIANMA JAPAN, LTD.
    Inventors: Takayuki Konno, Hidenori Ikeno, Mitsuhiro Sugimoto
  • Patent number: 10663811
    Abstract: A display device may include a substrate, a plurality of gate lines and a plurality of data lines, gate wirings and data wirings. The substrate may comprise a display area in which a plurality of pixels for displaying an image are arranged and a non-display area around the display area. The plurality of gate lines and the plurality of data lines in the display area on the substrate, the plurality of gate lines extending in one direction and the plurality of data lines extending in a direction intersecting said one direction. The gate wirings and data wirings in the non-display area on the substrate. At least one of the gate wirings and the data wirings has a hole having an edge in the form of numbers.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: May 26, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventor: Misun Lee
  • Patent number: 10663823
    Abstract: Provided is a TFT substrate including a dielectric substrate and a plurality of antenna unit regions arranged on the dielectric substrate. The TFT substrate further includes a transmission and/or reception region including the plurality of antenna unit regions, and a non-transmission and/or reception region positioned in a region other than the transmission and/or reception region. Each of the plurality of antenna unit regions is provided with a TFT that is supported by the dielectric substrate and that includes a gate electrode, a semiconductor layer, a gate insulating layer formed between the gate electrode and the semiconductor layer, and a source electrode and a drain electrode-electrically connected to the semiconductor layer; and a patch electrode electrically connected to the drain electrode of the TFT. The patch electrode is formed from the same conductive film as the gate electrode.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: May 26, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Katsunori Misaki
  • Patent number: 10655067
    Abstract: The application relates to a device for regulating the entry of light into a room, which comprises a switchable layer of specific design comprising a twisted nematic liquid-crystalline medium and a dichroic compound.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: May 19, 2020
    Assignee: Merck Patent GmbH
    Inventors: Michael Junge, Andreas Beyer, Mila Fischer