With Plural Alignments On The Same Substrate Patents (Class 349/129)
  • Patent number: 11442314
    Abstract: A polarization insensitive optical phase modulator is provided including a glass substrate; a liquid crystal element; a first electrode on a first surface of the liquid crystal element adjacent the glass substrate; a second electrode on a second surface of the liquid crystal element, opposite the first surface, the first and second electrodes supplying an electric potential across the liquid crystal element to drive liquid crystals in a predetermined configuration; and a silicon backplane on the second electrode opposite the liquid crystal element. The first electrode is a transparent electrode to a selected wavelength and is on a surface of the glass substrate. The second electrode includes individually addressable pixels and reflection metal mirrors on pixel surfaces and is on a surface of the silicon backplane.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: September 13, 2022
    Inventor: Chongchang Mao
  • Patent number: 11437441
    Abstract: An electronic apparatus includes a display panel including a base substrate including an active area and a peripheral area adjacent to the active area, pixels on the active area, pads on the peripheral area and arranged in a first direction, signal lines connecting the pixels to the pads, and a vernier mark on the peripheral area and spaced apart from the pads and the signal lines, a circuit board on the display panel and including a base film, and leads on the base film and overlapping with the pads in a plan view, and a conductive adhesive member extending in the first direction and between the display panel and the circuit board to connect the pads to the leads. The conductive adhesive member overlaps with the vernier mark when viewed in a second direction intersecting the first direction.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: September 6, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-yong An, Yun-kyeong In, Junwon Choi, Wonmi Hwang
  • Patent number: 11435623
    Abstract: Included are a first orientation region in which a liquid crystal molecule is oriented along a first direction and a plurality of pixels are included; a second orientation region in which a liquid crystal molecule is oriented along a second direction intersecting the first direction and a plurality of pixels are included; a third orientation region in which a liquid crystal molecule is oriented along a third direction intersecting the second direction and opposite to the first direction and a plurality of pixels are included; and a fourth orientation region in which a liquid crystal molecule is oriented along a fourth direction intersecting the third direction and opposite to the second direction and a plurality of pixels are included.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: September 6, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Takuya Ota
  • Patent number: 11414600
    Abstract: The present invention relates to a liquid crystal display device. The liquid crystal display device of the present invention comprises a first substrate, a second substrate, and a liquid crystal composition disposed between said first substrate and said second substrate, wherein said first substrate and said second substrate are disposed in parallel and opposite to each other; alignment layers are disposed on the sides of said first and second substrates that are close to said liquid crystal composition; and said alignment layers are provided with vertical alignment films that allow liquid crystal molecules in said liquid crystal composition to be arranged roughly perpendicular to said first and second substrates, with said liquid crystal molecules having a pretilt angle of 88.5° to 89.5°.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: August 16, 2022
    Assignee: SHIJIAZHUANG CHENGZHIYONGHUA DISPLAY MATERIAL CO., LTD.
    Inventors: Jiaming Li, Zhian Liang, Guoliang Yun, Sumin Kang, Xuan Zhang, Ruixiang Liang
  • Patent number: 11340492
    Abstract: A liquid crystal (LC) lens structure may include first and second electrode substrates, and an LC layer disposed between the first and second electrode substrates, where each of the first and second electrode substrates include an associated LC alignment layer. The LC lens structure may also include a first lens region and a second lens region separated from the first lens region by an intermediate region. The LC lens structure may also include a first electrode layer having first electrodes segmented into two or more separately addressed electrodes for each of the first and second lens regions. In some examples, an electrical insulation layer may be disposed between the first electrode layer and a second electrode layer including a second electrode positioned within the intermediate region. In other examples, the LC layer may include a polymer wall extending from at least one LC alignment layer in the intermediate region.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: May 24, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Andrew Acreman, Nathan James Smith
  • Patent number: 11340506
    Abstract: A liquid crystal display includes a first data line, a second data line, and a pixel electrode. The first data line transmits a first data voltage when the second data line transmits a second data voltage. A polarity of the second data voltage is opposite to a polarity of the first data voltage. The pixel electrode includes a first branch, a second branch, a third branch, and a fourth branch. The first branch is between the first data line and the second data line. The second branch neighbors the first branch in a first direction and overlaps the second data line. The third branch neighbors the first branch in a second direction and overlaps the first data line. The fourth branch neighbors the third branch in the first direction, neighbors the second branch in the second direction, and is between the first data line and the second data line.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: May 24, 2022
    Inventors: Dong Hee Shin, Geun Ho Lee, Yong Hee Lee
  • Patent number: 11296124
    Abstract: It is an object of the present invention to form a pixel electrode and a metal film using one resist mask in manufacturing a stacked structure by forming the metal film over the pixel electrode. A conductive film to be a pixel electrode and a metal film are stacked. A resist pattern having a thick region and a region thinner than the thick region is formed over the metal film using an exposure mask having a semi light-transmitting portion. The pixel electrode, and the metal film formed over part of the pixel electrode to be in contact therewith are formed using the resist pattern. Accordingly, a pixel electrode and a metal film can be formed using one resist mask.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: April 5, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 11204528
    Abstract: A metamaterial structure unit, a metamaterial and an electronic device. The metamaterial structure unit includes a first substrate, a second substrate, a liquid crystal layer between the two substrates, and a first electrode on the first substrate and a second electrode on the second substrate. The first electrode includes a first connecting portion, a first strip structure and a plurality of first circular arc structures on a first circumference. The second electrode includes a second connecting portion, a second strip structure and a plurality of second circular arc structures on a second circumference. In a case that the first electrode is rotated by 90 degrees around a center of the first circumference, a projection of the first electrode on the second substrate in a direction perpendicular to the second substrate coincides with the second electrode.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: December 21, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yongchun Lu
  • Patent number: 11150519
    Abstract: A liquid crystal display device includes first and second substrates and a vertically-aligned liquid crystal layer. The first substrate includes a pixel electrode and a first alignment film. The second substrate includes a counter electrode and a second alignment film. The first alignment film has, within each pixel, first and second pretilt regions that define first and second pretilt directions, respectively, that are antiparallel to each other. The second alignment film has, within each pixel, third and fourth pretilt regions that define third and fourth pretilt directions, respectively, that are antiparallel to each other. At least either a surface of the first substrate or a surface of the second substrate has a groove formed so as to overlap at least either a boundary between the first and second pretilt regions or a boundary between the third and fourth pretilt regions when seen from a direction normal to a display surface.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: October 19, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Toshifumi Yagi, Meng-Yi Hung
  • Patent number: 10996497
    Abstract: A display device includes a display, a protective layer, and a bonding layer. The display has a polarizing plate configuring an image display plane of a display. The protective layer faces the polarizing plate. The bonding layer is disposed between the polarizing plate and the protective layer and is directly bonded to the polarizing plate and the protective layer. The bonding layer contains a hygroscopic agent.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: May 4, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Yuuki Namekata
  • Patent number: 10928690
    Abstract: A liquid crystal display device is provided. The liquid crystal display device comprises a substrate, a thin-film transistor (TFT) disposed on the substrate, an insulating layer disposed on the TFT, and a pixel electrode disposed on the insulating layer and connected to a drain electrode of the TFT via a contact hole formed in the insulating layer. The pixel electrode includes a stem electrode which extends in a first direction and a second direction that is perpendicular to the first direction, branch electrodes which extend from the stem electrode, and an extension electrode which is disposed to overlap the contact hole and which is connected to the branch electrodes. The extension electrode includes a slit.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: February 23, 2021
    Inventor: Hwa Sung Woo
  • Patent number: 10914995
    Abstract: A liquid crystal display panel includes: thin film transistors provided in corresponding one of pixels and including a gate electrode, a source electrode, a drain electrode, and a semiconductor layer; a scanning line formed in a layer identical to that of the gate electrode and electrically connected to the gate electrode; and a first light shielding body formed in a layer identical to that of at least one of the source electrode and the drain electrode. The semiconductor layer is formed above the scanning line with an insulating layer interposed between the semiconductor layer and the scanning line, the first light shielding body is located above the scanning line and beside the semiconductor layer, and the first light shielding body and the scanning line are connected to each other through a contact hole made in the insulating layer.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: February 9, 2021
    Assignees: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., PASONA KNOWLEDGE PARTNER INC.
    Inventor: Daisuke Kajita
  • Patent number: 10914988
    Abstract: A vertical alignment liquid crystal display includes a first substrate, a second substrate, a liquid crystal layer located between the first substrate and the second substrate, a first and a second passivation layers respectively located at inner sides of the first and the second substrates, a common electrode layer and a pixel electrode layer respectively located on the first and the second passivation layers. The liquid crystal layer includes liquid crystal molecules, auxiliary alignment agent and a polymer network penetrating the entire liquid crystal layer. The auxiliary alignment agent makes the liquid crystal molecules in the liquid crystal layer vertically aligned on the surfaces of the first and the second substrates. The polymer network stabilizes alignment of the liquid crystal molecules and enhances vertical alignment effect of the auxiliary alignment agent to the liquid crystal molecules.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: February 9, 2021
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xinhui Zhong, Yungjui Lee
  • Patent number: 10910457
    Abstract: A display apparatus including two lines is provided. The two lines may extend in a first direction. A light-emitting device may be disposed between the two lines. Each line may be bent or extended in the direction of the device substrate which supports the light-emitting device. Thus, in the display apparatus, mixing of light emitted to the outside through the device substrate may be prevented. Therefore, in the display apparatus, the quality of realized image may be improved.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: February 2, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seong-Joo Lee, Jung-Ho Bang, Jung-Sun Beak, Sun-Mi Lee, Tae-Hwan Kim, Hyeon-Chul Im
  • Patent number: 10901271
    Abstract: A liquid-crystal display device includes a first substrate, a plurality of pixel units disposed on the first substrate, a color filter layer overlapping the plurality of pixel units and including first to third color filters, a second substrate facing the first substrate, and a liquid-crystal layer interposed between the first substrate and the second substrate. Each of the pixel units of the plurality of the pixel units includes a first pixel, a second pixel and a third pixel. The first pixel includes a first pixel electrode, the second pixel includes a second pixel electrode, and the third pixel includes a first sub-pixel electrode and a second sub-pixel electrode. A voltage applied to the first sub-pixel electrode is different from a voltage applied to the second sub-pixel electrode.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: January 26, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang Hyun Kim, Hoi Sik Moon
  • Patent number: 10896653
    Abstract: A display device includes: pixels corresponding to respective colors arranged in matrix, wherein each pixel has a pixel circuit portion in which a circuit for display driving of the pixel is arranged and a pixel opening to be an area obtaining effective display light, the pixel openings of the pixels corresponding to at least one color have an area different from areas of the pixel openings of pixels corresponding to other colors.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: January 19, 2021
    Assignee: Japan Display Inc.
    Inventors: Hidemasa Yamaguchi, Hironao Tanaka, Daisuke Ito
  • Patent number: 10895791
    Abstract: An active matrix substrate includes first and second gate bus lines each extending in a first direction; first and second source bus lines each extending in a second direction; a pixel electrode; and an auxiliary capacitance bus line. The conductive line branch portions of the auxiliary capacitance bus line include a first conductive line branch portion extending in the second direction, a second conductive line branch portion extending in a direction opposite to the first conductive line branch portion, a third conductive line branch portion extending in the second direction, and a fourth conductive line branch portion extending in a direction opposite to the third conductive line branch portion. In the first direction, one of the first and second conductive line branch portions has a longer length than the other, and one of the third and fourth conductive line branch portions has a longer length than the other.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: January 19, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Ryohki Itoh
  • Patent number: 10859863
    Abstract: A liquid crystal display includes a substrate, a pixel electrode disposed on the substrate and including a first subpixel electrode and a second subpixel electrode, and a liquid crystal layer disposed on the first subpixel electrode and the second subpixel electrode. A first insulating layer is disposed between the substrate and the first subpixel electrode. A second insulating layer is disposed between the second subpixel electrode and the liquid crystal layer. A common electrode is disposed on the liquid crystal layer. The first subpixel electrode is disposed farther from the substrate than the second subpixel electrode, and the first subpixel electrode and the second subpixel electrode have facing edges which are connected with each other.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: December 8, 2020
    Inventors: Youn Hak Jeong, Yun Seok Lee
  • Patent number: 10845520
    Abstract: The invention provides a method for generation of an orientation pattern in a photo-alignable material using parallax optic. The invention further provides optical devices comprising a parallax optical element and an element with patterned optical anisotropic properties. Such devices have angular dependent, optically anisotropic properties, which are useful for various applications.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: November 24, 2020
    Assignee: ROLIC AG
    Inventors: Klaus Schmitt, Hubert Seiberle, David Pires
  • Patent number: 10802368
    Abstract: A display panel including: a base substrate having first and second regions; a color filter layer having a first color layer, and a second color layer disposed in the second region and on the first color layer; a first pixel electrode disposed on the color filter layer and in the first region; and a second pixel electrode disposed in the first region and between the first pixel electrode and the second region. The first pixel electrode includes first branches spaced apart at a first pitch, and second branches spaced apart at a second pitch, the second pixel electrode includes third branches spaced apart at a third pitch and extended in the same direction as the first branches, and fourth branches spaced apart at a fourth pitch and extended in the same direction as the second branches, and the first and third pitches are different from each other.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: October 13, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jinsu Lee, Seungmin Lee, Kun-wook Han, Basrur Veidhes
  • Patent number: 10795208
    Abstract: A liquid crystal display is formed by arraying a plurality of pixels 10, and the pixel 10 includes a first substrate 20, a second substrate 50, a first electrode 120 formed on the first substrate 20, a second electrode 52 formed on the second substrate 50, and a liquid crystal layer 60. A pretilt angle is provided to a liquid crystal molecule 61, and the first electrode 120 is formed of a transparent conductive material layer and a foundation layer 150 including a plurality of projecting portions 130 and recessed portions 140. A first transparent conductive material layer 135 connected to a first power feeding unit is formed on a projecting portion top surface 151 of the foundation layer 150, and a second transparent conductive material layer 145 connected to a second power feeding unit is formed on a recessed portion bottom surface 152 of the foundation layer 150.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: October 6, 2020
    Assignee: SONY CORPORATION
    Inventors: Shunichi Suwa, Masashi Miyakawa, Chikashi Kobayashi
  • Patent number: 10782564
    Abstract: A liquid crystal display includes a lower panel electrode including a lower panel unit electrode, an upper panel electrode including an upper panel unit electrode facing the lower panel unit electrode, and a liquid crystal layer between the lower panel electrode and the upper panel electrode and including liquid crystal molecules, where the lower panel unit electrode includes a center electrode disposed at a center thereof, minute branches which extends from an edge side of the center electrode to an outside, and a first cutout is defined in the center of the center electrode, and the a second cutout is defined in the upper panel unit electrode between the minute branches and the first cutout, and a third cutout is connected to the second cutout and defines a boundary between subregions together with the first cutout.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: September 22, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hak Sun Chang, Cheol Shin, Jang Wi Ryu, Ki Chul Shin, Jae-Soo Jang
  • Patent number: 10768490
    Abstract: A liquid crystal device (LCD) has improved brightness by the use of a patterned alignment structure. The LCD includes a liquid crystal (LC) layer; an electrode arrangement configured to apply an electric field to the LC layer, the electrode arrangement including a patterned electrode layer having a plurality of individual electrode elements and adjacent individual electrode elements are spaced apart from each other by an inter-electrode gap; and a patterned alignment structure that is deposited on the patterned electrode layer and is positioned to align LC molecules of the LC layer. The patterned alignment structure is configured such that a stronger anchoring energy is present at electrode edges of the individual electrode elements of the patterned electrode layer, as compared to a weaker anchoring energy present at electrode centers of the individual electrode elements and/or present at least at a portion of the inter-electrode gaps between adjacent individual electrode elements.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: September 8, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Andrew Acreman, Nathan James Smith
  • Patent number: 10770486
    Abstract: A method of producing a liquid crystal cell includes: a thin-film forming step of forming, on a surface of one electrode-attached substrates including a TFT substrate and a slot substrate, the TFT substrate including a first dielectric substrate, TFTs, and patch electrodes electrically connected to the TFTs, the slot substrate including a second dielectric substrate and a slot electrode supported on the second dielectric substrate and having slots, a thin film so as to cover the patch electrodes and/or the slot electrode; and a light irradiating step of irradiating the thin film with light including p-polarized light to provide the thin film with alignment-regulating capability of aligning liquid crystal molecules to thereby obtain an alignment film. The thin film includes a polymer including a photoreactive functional group and exhibiting the alignment-regulating capability of the thin film in a direction orthogonal to a polarization axis of the p-polarized light.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: September 8, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takashi Katayama, Isamu Miyake, Akira Hirai, Kei Shinada
  • Patent number: 10747060
    Abstract: A display device includes: a first substrate; a second substrate overlapping the first substrate and separated from the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate, and including a plurality of liquid crystal molecules; a first alignment layer disposed between the first substrate and the liquid crystal layer; and a second alignment layer disposed between the second substrate and the liquid crystal layer, wherein the first alignment layer includes at least one of a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2:
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: August 18, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventor: Oh Jeong Kwon
  • Patent number: 10741135
    Abstract: A liquid crystal display device includes sub-pixel electrodes respectively provided to three sub-pixels, and an interelectrode connection portion that connects sub-pixel electrodes adjacent to each other among the sub-pixel electrodes. The interelectrode connection portion is provided in a position where boundaries of liquid crystal alignment directions of sub-pixels adjacent to each other are connected.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: August 11, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takahiro Sasaki, Hidefumi Yoshida, Kazutaka Hanaoka, Kimiaki Nakamura
  • Patent number: 10731976
    Abstract: An optical sensing device configured to detect an object or features of the object is provided. The optical sensing device includes a structured light projector and a sensor. A structured light projector is configured to project a structured light to the object and includes a light source and at least one tunable liquid crystal diffractive optical element (LCDOE). The light source is configured to emit a light beam. The at least one tunable LCDOE is disposed on a path of the light beam and configured to convert the light beam into the structured light to form a structured light pattern on the object. The LCDOE is capable of controlling the structured light pattern by controlling voltage distribution to a liquid crystal layer in the LCDOE. The sensor is configured to sense a reflected light formed by the object reflecting the structured light. Besides, a structured light projector is also provided.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: August 4, 2020
    Assignee: LIQXTAL TECHNOLOGY INC.
    Inventors: Hung-Shan Chen, Yen-Chen Chen
  • Patent number: 10718982
    Abstract: Techniques of reducing bezel size of liquid crystal display (LCD) devices are described. Techniques of the present subject matter allow reduction in the bezel size of an LCD device while maintaining the aspect ratio of pixels of an LCD panel. In an example, an LCD panel of the LCD device may include a plurality of sub-pixels arranged in a first direction and a second direction in a matrix arrangement, and a plurality of gate lines extending in the first direction and a plurality of source lines extending in the second direction. Further, The LCD panel may include a plurality of source lead-out lines extending in the first direction, wherein each of the plurality of source lead-out lines is electrically connected to at least one of the plurality of source lines.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: July 21, 2020
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventor: Teruhisa Nakagawa
  • Patent number: 10699932
    Abstract: An apparatus and a method for inspecting a substantially transparent semiconductor device are provided, where the method comprises the steps of holding the substantially transparent semiconductor device with a semiconductor device holder, and illuminating a surface of the semiconductor device held by the semiconductor device holder from multiple directions with an enveloping light source. Thereafter, capturing a first image of the semiconductor device with an imaging module from the light projected from the enveloping light source, the first image revealing a direction of grinding marks on the said surface of the transparent semiconductor device.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: June 30, 2020
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Yu Sze Cheung, Man Yin Kwan
  • Patent number: 10698267
    Abstract: A device is disclosed, which may include a color-filter layer and a thin-film transistor (TFT) layer. The TFT layer may have an alignment layer. The device may have spacers, between the color-filter layer and the TFT layer, that form space between the color-filter layer and the TFT layer for liquid crystals. The device may include a scratch-resistant coating on the alignment layer of the TFT layer.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: June 30, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Rohit Krishna Koppal, Chandrashekar Gernipalli Subba, Ronald B. Smith
  • 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: 10663806
    Abstract: A liquid crystal display includes a display substrate having pixel electrodes and a curvature along a first direction, an opposite substrate coupled to the display substrate and curved together with the display substrate, and a liquid crystal layer interposed between the display substrate and the opposite substrate. Each pixel electrode comprises a plurality of domains successively arranged along a second direction substantially perpendicular to the first direction, and further comprises branch electrodes positioned within each domain to be inclined with respect to the first and second directions, the branch electrodes of two domains adjacent to each other in the second direction being arranged in alternating manner.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: May 26, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Changil Tae, Suwan Woo
  • Patent number: 10663802
    Abstract: A liquid crystal display includes: a first pixel and a second pixel for displaying different colors, the first pixel and the second pixel each including a first sub-pixel electrode receiving a first voltage; a second sub-pixel electrode receiving a second voltage; an insulating layer disposed between the first sub-pixel electrode and the second sub-pixel electrode; and a common electrode receiving a common voltage. A first portion of the first sub-pixel electrode and a second portion of the second sub-pixel electrode overlap each other, a difference between the first voltage and the common voltage is larger than a difference between the second voltage and the common voltage, and a ratio of the second voltage to the first voltage for the first pixel is different from a ratio of the second voltage to the first voltage for the second pixel.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: May 26, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Joo Han, Hyo Sik Kim, Kyu Su Ahn, Dan Bi Yang, Hee Hwan Lee, Hoon Kim, Ki Chul Shin
  • Patent number: 10656475
    Abstract: A pixel electrode structure and a liquid crystal display panel are disclosed. The pixel electrode structure comprises a first trunk electrode and a second trunk electrode, the first trunk electrode and the second trunk electrode intersecting with each other to form a plurality of liquid crystal alignment regions, and a plurality of branch electrodes, one end of each branch electrode being connected with at least one of the first trunk electrode and the second trunk electrode, the branch electrodes distributed in one liquid crystal alignment region being parallel to one another, wherein in each of the liquid crystal alignment regions, a distance between two adjacent branch electrodes gradually decreases along a direction from a center of a liquid crystal alignment region to a corner thereof. With the pixel electrode structure, a display performance of a liquid crystal display panel under wide viewing angle can be improved, and an aperture ratio thereof can be maintained.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: May 19, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaohui Yao, Je Hao Hsu
  • Patent number: 10649251
    Abstract: A method of manufacturing a curved liquid crystal display is provided. The method includes forming a first display panel including a plurality of first patterns, forming a second display panel including a plurality of second patterns, assembling the first display panel and the second display panel, filling a liquid crystal between the assembled first and second display panels to form a flat liquid crystal display, and curving the flat liquid crystal display in a first direction to form the curved liquid crystal display. The first patterns and the second patterns are mismatched in the flat liquid crystal display, and the first patterns and the second patterns are matched in the curved liquid crystal display.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: May 12, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: O Sung Seo, Hyun-Ho Kang, Young Goo Song, Seung Jun Yu, Ha Won Yu, Ki Kyung Youk, Sang-Myoung Lee, Tae Kyung Yim
  • Patent number: 10631417
    Abstract: A display apparatus includes a base substrate, a first conductive pattern disposed on the base substrate, a first insulation layer disposed on the base substrate to cover the first conductive pattern, where a first contact hole is defined through the first insulation layer, a first pattern disposed on the first insulation layer, where the first pattern is in contact with the first conductive pattern through the first contact hole, a first filling pattern disposed in a recess of the first pattern which is defined by the first contact hole, a second insulation layer disposed on the first pattern and the first insulation layer, where a second contact hole overlapping the first contact hole is defined through the second insulation layer, and a second conductive pattern electrically connected to the first pattern through the second contact hole.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: April 21, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Junhong Park, Jung-Soo Lee, Jeongmin Park
  • Patent number: 10620488
    Abstract: A liquid crystal display (LCD) is provided, which includes: first and second gate lines, a data line intersecting the gate lines, first to fourth drain electrodes located near the intersections between the first and second gate lines and the data line, and a coupling electrode. First to fourth pixel electrodes respectively connected to the first to fourth drain electrodes are also provided, and the first pixel electrode is connected to the coupling electrode while the fourth pixel electrode overlaps the coupling electrode. The LCD further includes a common electrode opposite the pixel electrodes, a liquid crystal layer interposed between the pixel electrodes and the common electrode, and a domain partitioning member formed on at least one of the pixel electrode and the common electrode. Two long edges of the domains are angled with respect to the first and the second gate lines or the data line substantially by about 45°.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: April 14, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jang-Kun Song
  • Patent number: 10571731
    Abstract: Disclosed is an image quality improving film and a preparation method thereof, a display panel and a display device. The image quality improving film includes a scattering layer for covering a pixel region of a display layer to scatter a light coming from the display layer. By attaching the image quality improving film to image-displaying side of the display layer in the display panel and covering the pixel region of the display layer with the scattering layer, the scattering layer of the image quality improving film can scatter a light coming from the display layer, thereby increasing the viewing angle of the display panel.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: February 25, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Miki Kashima
  • Patent number: 10573247
    Abstract: A pixel array, a display driving device and a driving method thereof, and a display device are provided. The pixel array includes multiple columns of sub-pixel groups, each column of sub-pixel groups includes M×N sub-pixels arranged along a column direction, wherein the sub-pixel groups in odd numbered columns and the sub-pixel groups in even numbered columns offset in the column direction by ½ of a width of each sub-pixel in the column direction; each sub-pixel in each column of sub-pixel groups distorts in the column direction, and a distortion direction of the sub-pixel groups in the odd numbered columns is opposite to that of the sub-pixel groups in the even numbered columns. The crosstalk between the two views during 3D image displaying is improved by distortion of sub-pixels.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: February 25, 2020
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Renwei Guo, Xue Dong
  • Patent number: 10539830
    Abstract: A curved display device includes a curved first substrate, a curved second substrate, a liquid crystal layer, a first alignment layer, and a second alignment layer. The second substrate faces the first substrate. The liquid crystal layer is interposed between the first and second substrates and includes liquid crystal molecules. The first alignment layer includes reactive mesogens polymerized to each other and is disposed between the first substrate and the liquid crystal layer. The second alignment layer is disposed between the second substrate and the liquid crystal layer. Among the liquid crystal molecules, first liquid crystal molecules disposed in the vicinity of the first alignment layer have a first pretilt angle, and second liquid crystal molecules disposed in the vicinity of the second alignment layer have a second pretilt angle different from the first pretilt angle.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: January 21, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Donghan Song, Hokil Oh, Su Jeong Kim, Kichul Shin
  • Patent number: 10520781
    Abstract: The present invention relates to a liquid crystal display including: a lower electrode including a unit pixel electrode; an upper electrode including an upper unit electrode facing the unit pixel electrode; and a liquid crystal layer between the lower electrode and the upper electrode and including a plurality of liquid crystal molecules aligned approximately perpendicular to the surfaces of the lower electrode and the upper electrode in the absence of an electric field, wherein the unit pixel electrode includes a stem forming a boundary between a plurality of sub-regions and a plurality of minute branches extending in different directions in two different sub-regions, the upper unit electrode includes an opening facing the stem and extending parallel to the stem, any alignment aid to pretilt the liquid crystal molecules is absent, and a length of the minute branches is equal to or less than about 53 ?m.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: December 31, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Wi Ryu, Cheol Shin, Hak Sun Chang, Ki Chul Shin, Jae-Soo Jang, Ka Eun Kim, Ho Kil Oh, Se Hyun Lee, Hyo Ju Jung, Sang Hyeon Song, Sang Jin Jeon
  • Patent number: 10503032
    Abstract: A liquid crystal display device of an in-plane switching mode is provided. The liquid crystal display device includes a first gate line and a second gate line. The liquid crystal display device also includes a first data line, a second data line, and a third data line. The liquid crystal display device further includes a first electrode and a second electrode formed in a pixel region surrounded by the first gate line, the second gate line, the first data line, and the second data line. The first electrode includes a first set of slits extending along a first direction in a first section of the pixel region and a second set of slits extending along a second direction in a second section of the pixel region. The third data line overlaps a boundary area between the first section and the second section in the pixel region in plan view.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: December 10, 2019
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventor: Teruhisa Nakagawa
  • Patent number: 10502981
    Abstract: An eyewear lens is described that provides polarization filtering and spectral filtering using polarization interference. The lens produces enhanced saturation and colorfulness, increasing enjoyment when observing commonly encountered imagery. The lens can be configured to optimize accuracy/efficiency when performing a task involving colored imagery, and can improve performance in sports. The lens can further be helpful for color discrimination by those with certain types of color vision deficiency.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: December 10, 2019
    Assignee: GARY SHARP INNOVATIONS, LLC
    Inventor: Gary D. Sharp
  • Patent number: 10490575
    Abstract: An array substrate, a manufacturing method therefor, and a display device are provided. The array substrate comprises multiple pixel units, where at least one of the pixel units comprises a first subpixel electrode and a second subpixel electrode, the first subpixel electrode is electrically connected to a first charging thin-film transistor, and the second subpixel electrode is electrically connected to a second charging thin-film transistor. In same one pixel unit, the charging capacity of the second charging thin-film transistor is greater than the charging capacity of the first charging thin-film transistor.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: November 26, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenbo Li, Yanbing Wu
  • Patent number: 10481450
    Abstract: A liquid crystal display device is provided. The liquid crystal display device comprises a substrate, a thin-film transistor (TFT) disposed on the substrate, an insulating layer disposed on the TFT, and a pixel electrode disposed on the insulating layer and connected to a drain electrode of the TFT via a contact hole formed in the insulating layer. The pixel electrode includes a stem electrode which extends in a first direction and a second direction that is perpendicular to the first direction, branch electrodes which extend from the stem electrode, and an extension electrode which is disposed to overlap the contact hole and which is connected to the branch electrodes. The extension electrode includes a slit.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: November 19, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hwa Sung Woo
  • Patent number: 10451944
    Abstract: Embodiments of the disclosure provide an array substrate and a method for manufacturing the array substrate. The array substrate includes a substrate, a first electrode disposed on the base substrate and a second electrode disposed on the base substrate and located in a different layer from the first electrode with an insulation layer being disposed therebetween, wherein each of the first and second electrodes is a comb-like electrode, and the first and second electrodes are configured to generate an electric field therebetween when being applied with a voltage.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: October 22, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yunyun Tian, Hui Zhang, Hyun Sic Choi
  • Patent number: 10437405
    Abstract: A touch panel includes a substrate, a plurality of first electrode series, and a plurality of second electrode series. The substrate has a first surface. The first electrode series are disposed on the first surface. Each of the first electrode series extends along a first direction and includes a plurality of first electrodes. The second electrode series are disposed on the first surface. Each of the second electrode series extends along a second direction and includes a plurality of second electrodes.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: October 8, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Ya-Ting Chen, Sheng-Wen Cheng
  • Patent number: 10429705
    Abstract: A liquid crystal panel includes: first and second substrates arranged to be opposite each other at a predetermined gap; a liquid crystal layer filled between the first and second substrates; alignment films; a counter electrode pattern formed on the first substrate; and a pixel electrode pattern formed on the first substrate so as to have a plurality of electrode branches, the pixel electrode pattern having a partial connection branch formed around a contact so as to transversely connect a plurality of electrode branches extending from the contact from among the plurality of electrode branches.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: October 1, 2019
    Assignee: Japan Display Inc.
    Inventors: Yoshihiro Sakurai, Hironao Tanaka, Hidemasa Yamaguchi
  • Patent number: 10409056
    Abstract: An optical system for aberration compensation comprising an optical module and an asymmetric refractive index distribution film is disclosed. The asymmetric refractive index distribution film comprises a liquid crystal and a liquid crystalline polymer, wherein the asymmetric refractive index distribution film set on an out-light surface or an in-light surface of the optical module. A display system comprising the above-mentioned optical system and an image panel are also disclosed herein. The asymmetric refractive index distribution film of the present invention has non-uniform refractive index distribution so as to effectively compensate the aberration formed by the optical module.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: September 10, 2019
    Assignees: LIQXTAL TECHNOLOGY INC., NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Hung-Shan Chen, Yi-Hsin Lin
  • Patent number: 10407617
    Abstract: Shown is a liquid crystal display device including a first substrate, a second substrate and a liquid crystal composition having a nematic phase, which is placed between these substrates, wherein the liquid crystal composition includes at least one compound selected from compounds represented by formula (1) as a first component: wherein in formula (1), R1 and R2 are alkyl or the like; ring A and ring C are 1,4-phenylene or the like; ring B is 2,3-difluoro-1,4-phenylene or the like; Z1 and Z2 are a single bond or the like; and m is 1, 2 or 3, n is 0 or 1, and the sum of m and n is 3 or less.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: September 10, 2019
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yoshinari Matsumura, Masayuki Saito, Yoshimasa Furusato