Electrical Excitation Of Liquid Crystal (i.e., Particular Voltage Pulses, Ac Vs. Dc, Threshold Voltages, Etc.) Patents (Class 349/33)
  • Patent number: 10885858
    Abstract: An array substrate, a display panel, a display device and a method for designing the display panel are provided. The array substrate includes a plurality of pixel units, wherein each of the pixel units includes a plurality of sub-pixels, each of the sub-pixels includes a pixel electrode, and the pixel electrode includes a plurality of strip-shaped sub-pixel electrodes arranged in a comb-teeth form, and the sub-pixels of one of the pixel units include at least two sub-pixels. A width of the strip-shaped sub-pixel electrode of any one of the at least two sub-pixels is different from a width of the strip-shaped sub-pixel electrode of any other one of the at least two sub-pixels, and/or an interval between the strip-shaped sub-pixel electrodes of any one of the at least two sub-pixels is different from an interval between the strip-shaped sub-pixel electrodes of any other one of the at least two sub-pixels.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: January 5, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jilei Gao, Jinliang Liu, Yang Zhang, Xuebing Jiang, Songmei Sun
  • Patent number: 10884262
    Abstract: This disclosure provides a liquid crystal lens, a method for producing the same, and a display apparatus. This liquid crystal lens comprises: a first substrate and a second substrate, wherein a plurality of prism units are provided between the first substrate and the second substrate, each of the prism units comprises a first electrode and a second electrode group, the second electrode group comprises a plurality of second electrodes, a liquid crystal layer is provided between the first electrode and the second electrode group, a transparent insulating separation structure is provided between two adjacent prism units, and the refractive index of the separation structure is the same as that of the long axis of the liquid crystal molecule constituting the liquid crystal layer. The liquid crystal lens in this disclosure is used for a naked-eye 3D display apparatus.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: January 5, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haiyan Wang, Zhongxiao Li
  • Patent number: 10877312
    Abstract: Provided is a reflection system including a windshield and a feeder. The windshield includes an upper transparent layer, an upper electrode, a liquid crystal layer, a lower electrode array, and a lower transparent layer, and the feeder is configured to apply a voltage pattern to the lower electrode array. A refractive index of the liquid crystal layer varies across the liquid crystal layer according to the voltage pattern applied by the feeder to the lower electrode array, and the feeder is configured to apply a first voltage pattern to cause a first change in the refractive index of the liquid crystal layer such that parallel light rays incident to the windshield and reflected from the upper transparent layer and the lower transparent layer, respectively, meet at a virtual focal point.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: December 29, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoonsun Choi, Dong Kyun Nam, Jinho Lee
  • Patent number: 10839745
    Abstract: A display unit includes a display panel, a photochromic layer, and an ultraviolet absorption layer. The photochromic layer is configured to be colored by ultraviolet light and be decolored or color-faded by visible light. The display panel includes an image display surface with a plurality of pixels. The pixels are provided below the image display surface and each include an organic light-emitting layer.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: November 17, 2020
    Assignee: JOLED INC.
    Inventors: Masahiko Kondo, Jiro Yamada, Atsuhito Murai, Yasuhiro Terai, Noriteru Maeda
  • Patent number: 10831075
    Abstract: A display device is provided. The display device comprises a plurality of data lines extending in a first direction. The display device also comprises a plurality of gate lines. The plurality of gate lines comprises a first gate line, a second gate line and a third gate line extending in a second direction different than the first direction to form a matrix with the plurality of data lines. The first gate line and the second gate line are separated from each other and are arranged in a same row of the matrix. The display device further comprises a first gate connector line and a second gate connector line, respectively, electrically connecting the first gate line and the second gate line to one or two gate drivers. The first gate connector line and the second gate connector line extend in the first direction.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: November 10, 2020
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Norimichi Shirai, Ryutaro Oke, Daisuke Kajita
  • Patent number: 10825381
    Abstract: A display system includes: a display device that transits from a power-off state to a power-on state; and a brightness calculation device that calculates a brightness setting sequence based on a humidity amount over a first period in which the display device is in the power-off state, the brightness setting sequence being a sequence of a setting value of a brightness of the display device during a second period, the second period starting from when the display device transits to the power-on state, the setting value changing in time series. The display device displays an image signal at a brightness according to the brightness setting sequence.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: November 3, 2020
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventors: Shigenobu Jo, Hironori Kobayashi
  • Patent number: 10788727
    Abstract: A liquid crystal light deflector includes a first electrode layer including a plurality of pattern electrodes arranged with a constant pitch in a first direction on a first substrate, a first alignment layer covering the first electrode layer and having a plurality of concave portions formed on an upper surface thereof and extending in parallel to a second direction perpendicular to the first direction, a liquid crystal layer including a plurality of liquid crystal molecules each having a long diameter substantially parallel to the concave portions on the first alignment layer, a second electrode layer, which is a common electrode, disposed on the liquid crystal layer, and a second substrate disposed on the second electrode layer.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: September 29, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Kim, Yunhee Kim, Hoon Song, Kanghee Won, Yeonhee Kim, Kideok Bae, Hongseok Lee
  • Patent number: 10784965
    Abstract: A method selects a phase shift profile to be applied to a programmable optical phase shift modulator having an array of pixels. A base stepped phase shift profile for the modulator is selected such that when applied to the modulator, the base stepped phase shift profile allows the modulator to function as a blazed grating steering an optical beam through a prescribed angle. The base stepped phase shift profile has a plurality of segments each extending over a given number of the pixels defining a linear array of pixels. Each segment has first and last pixels in the linear array of pixels. Variations in minimum and maximum luminosity levels among the segments of the base stepped phase shift profile are reduced so that any changes to a slope of each segment arising from reducing the variations in the minimum and maximum luminosity level is maintained below a given amount.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: September 22, 2020
    Assignee: Molex, LLC
    Inventor: Bradford Smith
  • Patent number: 10782557
    Abstract: An adjustable reflective device includes a base substrate, a reflective film disposed above the base substrate, and an adjustment assembly configured to control reflectivities of different portions of the reflective film.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: September 22, 2020
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yang You, Yun Qiu, Ruizhi Yang, Zhenhua Lv, Ruiyong Wang, Yonglian Qi
  • Patent number: 10739654
    Abstract: The present application provides an array substrate including an array layer, a first insulating layer, a second insulating layer, and a first indium tin oxide (ITO) layer. The array layer includes first thin film transistors and second thin film transistors, the first ITO layer electrically connected to the first thin film transistors, and a second ITO layer and a polymer dispersed liquid crystal layer are further disposed between the first insulating layer and the second insulating layer, the second ITO layer electrically connected to the second thin film transistors and electrically insulated from the first thin film transistors.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: August 11, 2020
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventor: Wei Cheng
  • Patent number: 10714507
    Abstract: A semiconductor device includes a first resin layer, one or more first wirings above the first resin layer, a second resin layer above the first wiring, the second resin layer including a first opening part, a transistor above the second resin layer, the transistor including a semiconductor layer, a gate insulation layer, and a gate electrode layer; and a second wiring above the second resin layer, the second wiring being connected to the transistor and connected to the first wiring via the first opening part.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: July 14, 2020
    Assignee: Japan Display Inc.
    Inventors: Toshinari Sasaki, Shinichiro Oka, Takuma Nishinohara
  • Patent number: 10698271
    Abstract: A liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer, a plurality of first regions and a plurality of second regions. The first regions and the second regions are formed on the first substrate and the second substrate. In a narrow viewing mode, the luminous flux of the first regions along a first viewing direction is different from that of the first regions along a second viewing direction opposite to the first viewing direction, and the luminous flux of the second regions along the first viewing direction is substantially different from that of the first regions along the first viewing direction.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: June 30, 2020
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Chao-Wei Yeh, Chien-Huang Liao, Wen-Hao Hsu, Tien-Lun Ting, Chao-Yuan Chen, Jenn-Jia Su
  • Patent number: 10684513
    Abstract: A liquid crystal display includes a pair of substrates, a liquid crystal layer, and an alignment-controlling layer. The liquid crystal layer is disposed between the pair of substrates and includes a liquid crystal material. The alignment-controlling layer, which is formed by polymerization of a polymerizable monomer added to a liquid crystal composition forming the liquid crystal layer so as to be brought into contact with the liquid crystal layer, and controls an alignment of the liquid crystal material to the substrate at a predetermined angle. One substrate of the pair of substrates has an alignment film coated and formed so as to be brought into contact with the alignment-controlling layer, and the other substrate has no alignment film.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: June 16, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masanobu Mizusaki
  • Patent number: 10657295
    Abstract: A hardware encryption housing and a payment device using the hardware encryption housing includes a top shell, a bottom shell, a circuit board and a trigger switch configured to transmit a trigger signal when the top shell is separated from the bottom shell. A security chip, mounted on the circuit board, has a storage module configured to store key information and a detection module configured to clear the key information and lock the security chip after the trigger signal is detected. The trigger signal is transmitted when the top shell is separated from the bottom shell, and the detection module is provided in the security chip to detect whether the trigger switch transmits a trigger signal. When detected, the key information in the storage module is cleared and the security chip is locked.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: May 19, 2020
    Assignee: PAX COMPUTER TECHNOLOGY (SHENZHEN) CO., LTD.
    Inventors: Xiaoyan Su, Yuzhuo Wang, Liheng Deng
  • Patent number: 10656476
    Abstract: A liquid crystal panel includes a first substrate, a second substrate, a liquid crystal layer disposed between the first substrate and the second substrate, and a spacer. The first substrate includes pixel electrodes and a common electrode overlapping the pixel electrodes. The second substrate has a display surface displaying an image thereon and is arranged opposite the first substrate and includes a transparent electrode overlapping the common electrode. The spacer has conductivity and is disposed in a display region where the image is displayed and between the first substrate and the second substrate and contacted with the common electrode and the transparent electrode.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: May 19, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masakatsu Tominaga
  • Patent number: 10634969
    Abstract: In a liquid crystal display apparatus in which a first substrate and a second substrate are disposed in parallel to each other through a liquid crystal layer, a liquid crystal molecule in the liquid crystal layer is rotated in a plane parallel to the first substrate and the second substrate by driving voltage applied to the liquid crystal layer. A voltage value corresponding to a maximum gradation value of the driving voltage applied to the liquid crystal layer is a driving voltage value at which transmittance peaks based on V-T characteristics in an inclination direction inclined from a normal direction of a display surface of the liquid crystal display apparatus to a direction in which a refractive index of the liquid crystal layer is maximum.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: April 28, 2020
    Assignee: TIANMA MICROELECTRONICS CO., LTD.
    Inventor: Hidenori Ikeno
  • Patent number: 10613392
    Abstract: A method is disclosed for realizing a liquid crystal tri-dimensional aligned structure, including: providing a first substrate having a first surface; forming a liquid crystal layer in contact to said first surface, said liquid crystal layer including a polymerizable liquid crystal compound; realizing a first aligning formation within said liquid crystal layer by irradiating a first portion of said liquid crystal layer with electromagnetic or electron beam radiation according to a given first pattern, so that said first portion of liquid crystal compound becomes polymerized and said first aligning formation is made of said polymerized liquid crystal compound according to said given first pattern, said first aligning structure defining a first aligning axis; locally orienting optical axes of molecules of said liquid crystal layer along said first aligning axis.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: April 7, 2020
    Assignees: CONSIGLIO NAZIONALE DELLE RICERCHE—CNR, LABORATORIO EUROPEO DI SPETTROSCOPIE NON LINEARI (LENS)
    Inventors: Hao Zeng, Piotr Jan Wasylczyk, Diederik Sybolt Wiersma, Camilla Parmeggiani, Chih-Hua Ho
  • Patent number: 10613391
    Abstract: A method for preparing a liquid crystal alignment layer, a liquid crystal alignment layer, and a display device. The method for preparing a liquid crystal alignment layer includes: S1, dripping liquid crystals and performing cell-assembling, wherein a liquid alignment material is added to the liquid crystals and the alignment material is curable and includes molecules capable of inducing alignment of liquid crystal molecules; S2, applying an electric field or a magnetic field, wherein the direction of the electric field is approximately the same as a preset direction of the liquid crystal alignment layer, and the direction of the magnetic field is perpendicular to the preset direction of the liquid crystal alignment layer; and S3, performing curing while maintaining the electric field or the magnetic field until the alignment material completes the curing reaction.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: April 7, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qiangtao Wang, Yun Sik Im
  • Patent number: 10593254
    Abstract: A display substrate and a display device including the display substrate are disclosed. In one aspect, the display substrate includes a plurality of pixels formed in a substantially circular pixel area and a driving circuit formed in a peripheral area surrounding the pixel area and configured to drive the pixels. A boundary is formed between the pixel area and the peripheral area, and the boundary is substantially concentric with respect to an arc defining the substantially circular pixel area. The driving circuit comprises a conductive pattern having a first side which extends in a peripheral direction crossing the boundary.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: March 17, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hye-Jin Shin, Won-Kyu Kwak, Kwang-Min Kim
  • Patent number: 10580336
    Abstract: A display driver device includes a timing controller, a display driver integrated circuit, a flexible printed circuit board, a connection line, and a test line. The timing controller includes an output pad unit. The display driver integrated circuit includes an input pad unit. The connection line is formed at the flexible printed circuit board to electrically connect the input pad unit with the output pad unit. The test line is formed at the flexible printed circuit board, and is used to provide a test signal to the input pad unit. The display driver device operates in a normal mode or operates in the test mode based on a test mode signal.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: March 3, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Minhwa Jang, Chulho Choi, Hyunje Park
  • Patent number: 10571742
    Abstract: A display panel and a display device are provided. The display panel comprises: a display area; a non-display area surrounding the display area; and a plurality of primary-color pixels and a plurality of color-mixing pixels disposed in the display area. A primary-color pixel includes a first electrode, and the first electrode includes M number of stripe-shaped first electrode branches. A color-mixing pixel includes a second electrode, and the second electrode includes N number of stripe-shaped second electrode branches, where M>N, and both M and N are integers greater than 0. A width D2 of the second electrode branch is greater than a width D1 of the first electrode branch.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: February 25, 2020
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Zhaokeng Cao, Dandan Qin, Min Cai
  • Patent number: 10558085
    Abstract: The present invention provides a liquid crystal display device capable of achieving a high contrast ratio, a wide viewing angle, and a high-speed response. The liquid crystal display device includes an upper substrate; a lower substrate; and a liquid crystal layer sandwiched between the upper substrate and the lower substrate. The lower substrate includes a first electrode, and a second electrode and a third electrode arranged in a layer different from the first electrode. The first electrode includes a trunk portion and multiple branch portions branching from the trunk portion and is provided with an opening between the branch portions. The second electrode and the third electrode constitute a pair of comb-shaped electrodes and each include a trunk portion and multiple branch portions branching from the trunk portion. The branch portions of the first electrode are each bent at a predetermined angle. The electrodes each have a predetermined configuration.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: February 11, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takuma Tomotoshi, Mitsuhiro Murata, Yosuke Iwata, Satoshi Matsumura
  • Patent number: 10558098
    Abstract: Provided is a display apparatus including a liquid crystal panel and a shutter panel, wherein the shutter panel includes a shutter layer configured to change a polarizing axis of light transmitted through a selected area, a shutter polarizing layer disposed on a front surface of the shutter layer, and configured to transmit light having the polarizing axis changed by the shutter layer, and a quantum rod layer disposed on a rear surface of the shutter layer, and configured to convert a wavelength of light that is incident to the shutter panel, and to transmit light having a polarizing axis of a predetermined direction to the shutter layer. Therefore, the display apparatus may implement a local dimming structure and improve the optical efficiency.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: February 11, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung Jin Cho, Nae Won Jang, Seung Hun Chae
  • Patent number: 10545383
    Abstract: Ink-jet printable compositions including nanoparticles capped with a protective layer of hydrocarbon chains and a single solvent exhibiting a single evaporation rate and having a specifically defined viscosity and surface tension that result in uniform and printable alignment layers for liquid crystal materials. Patterned liquid crystal-containing cells are also disclosed including one or more layers including the same or different nanoparticles capped with a protective layer of hydrocarbon chains printed on a surface of a substrate or even another nanoparticle-containing layer. Methods for producing the cells are also disclosed, including the step of printing a pattern on one or more portions of a cell surface utilizing a composition comprising the capped nanoparticles. Devices including the cells are also disclosed.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: January 28, 2020
    Assignee: KENT STATE UNIVERSITY
    Inventors: Torsten Hegmann, Anshul Sharma, Dmytro Reznikov
  • Patent number: 10545605
    Abstract: An electronic device is provided. The electronic device includes a display panel, a plurality of input sensing panels which are one of layered on and bonded to the display panel, a driver integrated circuit (IC) connected to the display panel and configured to generate a synchronization signal for controlling the display panel, and a plurality of input sensors connected to the plurality of input sensing panels and configured to scan a respective one of the plurality of input sensing panels, according to scan timing, which is time-divided with reference to the synchronization signal.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: January 28, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Man Kim, Min Uk Kim, Kyungok Jang, Youngho Cho, Ju-Hee Han, Ji-Woo Lee
  • Patent number: 10534232
    Abstract: A manufacturing method of an array substrate includes the steps of providing a base plate and forming a thin-film transistor (TFT) layer on the base plate; forming a quantum dot layer on the TFT layer; and forming a protective filter layer on the quantum dot layer to provide protection to the quantum dot layer. The protective filter layer also provides an effect of light filtering in order to prevent ultraviolet light or blue light from transmitting therethrough and allows light of red and green colors to pass.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: January 14, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaoping Cheng, Yungjui Lee
  • Patent number: 10503033
    Abstract: A blue phase liquid crystal display panel and a liquid crystal display device are disclosed, including a first and a second substrates disposed at an interval and parallel. Blue phase liquid crystal is disposed between the first and second substrates. The first substrate includes a first base. The second substrate includes a second base. The blue phase liquid crystal display panel includes a transmissive display region having multiple first base platforms, multiple first electrodes, each of which is disposed on each of the first base platform, and second electrodes disposed on the first base and the second base. A reflective display region has fourth electrodes only disposed on the second base. The first substrate is provided with a reflective layer corresponding to the reflective display region. When light passes through the transmissive display region and the reflective display region, phase delays of the light in the two regions are identical.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: December 10, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventor: Yuejun Tang
  • Patent number: 10502968
    Abstract: An image display apparatus includes a parallax-barrier shutter panel including a plurality of sub-pixels arranged widthwise, the sub-pixels each being changeable between a light transmittance state and a light block state by driving a liquid crystal layer held between a first transparent substrate and a second transparent substrate with a first transparent electrode extending lengthwise. The first transparent substrate includes in a display area, a lower-layer first transparent electrode disposed under an interlayer insulating film and an upper-layer first transparent electrode disposed on the interlayer insulating film, the lower-layer first transparent electrode and the upper-layer first transparent electrode being the first transparent electrode. The first transparent substrate includes in an area adjacent to the display area, a lower-layer metal wire disposed under the interlayer insulating film and an upper-layer metal wire disposed on the interlayer insulating film.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: December 10, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinji Kawabuchi, Osamu Miyakawa
  • Patent number: 10481395
    Abstract: A combined head up display and instrument cluster arrangement for a motor vehicle includes a substantially planar liquid crystal display having a first side and a second side opposite the first side. A first area of the liquid crystal display is viewable as an instrument cluster display by a human viewer who is disposed closer to the first side than to the second side. A backlight is disposed closer to the first side than to the second side. The backlight is aligned with a second area of the liquid crystal display such that a light field is emitted by the backlight through the second area. Head up display optics are positioned to receive the light field.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: November 19, 2019
    Assignee: Pananasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America
    Inventor: Thomas Barron
  • Patent number: 10409111
    Abstract: The invention provides a liquid crystal display device, a liquid crystal display module and a liquid crystal cell thereof. The liquid crystal cell includes an upper substrate, a lower substrate, and a mixture of a quantum dot material and a liquid crystal material disposed between the upper substrate and the lower substrate. The quantum dot material includes a red quantum dot material and a green quantum dot material. A mass ratio of a total mixing amount of the two quantum dot materials occupied in a total mass of the mixture is 0.05˜5 wt %. As to the liquid crystal cell, the introduction of the QD material promotes the directional arrangement of liquid crystal molecules and thus plays a role of alignment; in another aspect, the liquid crystal cell being used in conjunction with a backlight source of blue or white LED can enhance the color gamut.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: September 10, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Dongze Li
  • Patent number: 10409099
    Abstract: A high screen ratio display device with fingerprint identification includes a lower substrate, an upper substrate, and a cover glass. The lower substrate has a thin film transistor array formed with a plurality of thin film transistors and corresponding capacitors to provide an active area. The upper substrate is disposed on one side of the TFT array, and has an optical film layer. The cover glass is disposed on one side of the upper substrate, and has an opening to accommodate a fingerprint identification module. The opening at least partially overlaps the active area, and a space is defined between the opening of the cover glass and the thin film transistor array to accommodate a portion of the fingerprint identification module.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: September 10, 2019
    Assignee: FOCALTECH ELECTRONICS, LTD.
    Inventor: Pei-Hung Hsiao
  • Patent number: 10381315
    Abstract: A hardware-embedded security system is described. The system includes connective components, circuit elements and an insulator. The connective components include a variable conductivity layer that is conductive for a first stoichiometry and insulating for a second stoichiometry. The variable conductivity layer is conductive for a first portion of the connective components connected to a first portion of the circuit elements. The variable conductivity layer is insulating for a second portion of the connective components connected to a second portion of the circuit elements. Thus, the first portion of the circuit elements are active and the second portion of the circuit elements are inactive. The insulator is adjacent to at least a portion of each of the connective components. The first stoichiometry may be indistinguishable from the second stoichiometry via optical imaging and electron imaging of a portion of the insulator and the variable conductivity layer.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: August 13, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Harsono S. Simka, Ganesh Hegde, Joon Goo Hong, Rwik Sengupta, Mark S. Rodder
  • Patent number: 10379402
    Abstract: This application provides a pixel structure of display array substrate and a display device applied thereto. The pixel structure of display array substrate includes a plurality of pixel units arranged in an array manner. Each pixel unit includes a first subpixel, a second subpixel, and a fourth subpixel. Each pixel unit further includes: a first subpixel electrode and a second subpixel electrode, respectively located in the first subpixel and the second subpixel; and a fourth subpixel electrode, where the fourth subpixel electrode includes a first pixel electrode, a second pixel electrode, a third pixel electrode, and a fourth pixel electrode located in four areas of the fourth subpixel, respectively, and each the first pixel electrode, the second pixel electrode, the third pixel electrode, and the fourth pixel electrode are divided into at least two compensation area.
    Type: Grant
    Filed: February 26, 2017
    Date of Patent: August 13, 2019
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yu-Jen Chen
  • Patent number: 10338441
    Abstract: According to one embodiment, a display device includes a first polarizing element, a second polarizing element, and a light-modulating layer located between the first polarizing element and the second polarizing element, each of the first polarizing element and the second polarizing element includes a guest-host liquid crystal layer and a control electrode in an active area including at least one sub-area, the guest-host liquid crystal layer including dye having anisotropy in absorptive power for visible light, the control electrode controlling an alignment direction of the dye in the sub-area.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: July 2, 2019
    Assignee: Japan Display Inc.
    Inventors: Kentaro Okuyama, Tae Kurokawa
  • Patent number: 10317746
    Abstract: A liquid crystal display device includes a pixel electrode having a stem electrode in a first direction and a plurality of branch electrode extending from the stem electrode. An angle between the stem electrode and each of the branch electrode increases as the branch electrodes approach a center of the stem electrode and the angle decreases as the branch electrodes approach an end of the stem electrode.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: June 11, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Israel Esteban Lazo, Heung Shik Park, Ki Chul Shin
  • Patent number: 10295871
    Abstract: A liquid crystal display panel and a liquid crystal display device are provided. The liquid crystal display panel comprises a first substrate, a second substrate, a liquid crystal layer sandwiched between the first and second substrate, and an auxiliary electrode. The first substrate includes a plurality of gate electrode lines and a plurality of data lines intersected to define a plurality of pixel units. Each pixel unit corresponds to a pixel electrode and a common electrode. In each region corresponding to one pixel unit, the pixel electrode and the common electrode are configured to form an electric field that drives the liquid crystal layer. A vertical projection of the auxiliary electrode on the first substrate covers an area where the electric field is formed by the pixel electrode and the common electrode, and a thickness of the liquid crystal layer is less than or equal to 3.2 ?m.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: May 21, 2019
    Assignees: Xiamen Tianma Micro-Electronics Co., Ltd., Tianma Micro-Electronics Co., Ltd.
    Inventors: Binbin Chen, Bozhi Liu, Bingping Liu
  • Patent number: 10274797
    Abstract: A method of fabricating a voltage-tunable liquid crystal-based notch filter requires filling at least two LC cells with cholesteric LC material to create LH and RH LC cells while applying heat to the cell substrates such that their temperatures are raised to near, but below, the clearing point, such that the LC material remains in the cholesteric state. An AC voltage is applied and turned off repeatedly while the LC cells cool down to room temperature, to cause the LC molecules to temporarily deviate from their intrinsic helical alignment. The cells are passed under a UV light sufficient to create cross-linked polymer networks, and self-compensation is used to compensate for in-band retardation. The resulting LH and RH LC cells are stacked such that the electrodes on adjacent substrates are connected to form a common electrode.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: April 30, 2019
    Assignee: Teledyne Scientific & Imaging, LLC
    Inventor: Dong-Feng Gu
  • Patent number: 10210784
    Abstract: A driving circuit and a method for driving a display panel are proposed. The driving circuit includes: a clock controller; a scan signal driver for generating a first scan signal and a second scan signal; a data signal driver for receiving a source data signal, and generating a first data signal, and generating a second data signal based on the first data signal. A gray level value corresponding to the first data signal is different from a gray level value corresponding to the second data signal. The present invention is able to reduce color shift.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: February 19, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yuchao Zeng, Taijiun Hwang
  • Patent number: 10191310
    Abstract: A power conversion circuit for switching the viewing angle of an LCD, includes an input terminal, an output terminal, a switching unit, an isolating unit, an output unit, a first power supply, a second power supply, and a third power supply. When the input terminal is provided with a low level voltage, the switching unit is switched on, the voltage of the second power supply is provided as a first DC voltage to the output terminal via the switching unit and the isolating unit. When the input terminal is provided with a high level voltage, the switching unit is switched off, the voltage of the third power supply is provided as a second DC voltage to the output terminal via the output unit and the isolating unit, wherein the second DC voltage is higher than the first DC voltage.
    Type: Grant
    Filed: October 15, 2016
    Date of Patent: January 29, 2019
    Assignee: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.
    Inventors: Dalei Zhang, Yongxin Ruan, Qingbai Lv
  • Patent number: 10157565
    Abstract: A display substrate and a display device including the display substrate are disclosed. In one aspect, the display substrate includes a plurality of pixels formed in a substantially circular pixel area and a driving circuit formed in a peripheral area surrounding the pixel area and configured to drive the pixels. A boundary is formed between the pixel area and the peripheral area, and the boundary is substantially concentric with respect to an arc defining the substantially circular pixel area. The driving circuit comprises a conductive pattern having a first side which extends in a peripheral direction crossing the boundary.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: December 18, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hye-Jin Shin, Won-Kyu Kwak, Kwang-Min Kim
  • Patent number: 10152913
    Abstract: An anti-interference display panel includes a source driving chip, a switching signal line, a multiplexer, and an anti-interference signal line. The source driving chip is configured to generate a data signal. The switching signal line is configured to transmit a switching signal. The multiplexer is configured to receive the data signal and the switching signal, and is configured to output the data signal according to the switching signal. The anti-interference signal line is configured to transmit an anti-interference signal. An equivalent resistor and an equivalent capacitor are formed on the anti-interference signal line, and resistance of the equivalent resistor is approximate to resistance of a load resistor coupled to the switching signal line, and capacitance of the equivalent capacitor is approximate to capacitance of a load capacitor coupled to the switching signal line.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: December 11, 2018
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Yi-Cheng Lin, Ming-Hsien Lee, Kai-Wei Hong, Chun-Da Tu, Chuang-Cheng Yang, Chun-Feng Lin
  • Patent number: 10136570
    Abstract: An array substrate includes a driver, a glass substrate having a driver mounting section where the driver is mounted, an anisotropic conductive material that is interposed between the driver and driver mounting section so as to electrically connect both and that at least includes a binder made of a thermosetting resin and conductive particles in the binder, and a heat supply part provided on at least the driver mounting section of the glass substrate for supplying heat to the anisotropic conductive material.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: November 20, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Katsuhiro Yamaguchi, Nobuhiro Nakata, Yukinori Masuda, Tomoki Takahara
  • Patent number: 10126601
    Abstract: A liquid crystal display device includes a substrate; a liquid crystal layer containing a liquid crystal material; and a first layer formed on the substrate, the first layer being configured to control the alignment of liquid crystal molecules, the first layer being placed between the substrate and the liquid crystal layer, and being formed by polymerization of two or more kinds of radical polymerizable monomers in the liquid crystal layer.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: November 13, 2018
    Assignees: SHARP KABUSHIKI KAISHA, TOYO GOSEI CO., LTD.
    Inventors: Masanobu Mizusaki, Satoshi Enomoto
  • Patent number: 10082702
    Abstract: A liquid-crystal display apparatus includes a plurality of rectangular pixels. Each pixel includes a first electrode and a second electrode. A slit region and a concave and convex portion are formed in the first electrode. It further includes a control circuit. The plurality of pixels are constituted of a first pixel group and a second pixel group. First data lines and for applying a voltage on the first electrode are provided closer to the first substrate than the first electrode. In each pixel that constitutes the first pixel group, a second data line extension extending from a second data line is provided adjacent to a first data line. In each pixel that constitutes the second pixel group, a first data line extension extending from the first data line is provided adjacent to the second data line.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: September 25, 2018
    Assignee: Sony Corporation
    Inventors: Chikashi Kobayashi, Shunichi Suwa, Masashi Miyakawa, Yoji Nagase, Sumito Shiina, Seiji Shibahara, Hiroki Takahashi, Hiromasa Mitani, Kunihiko Nagamine, Koji Hidaka, Masahiko Mizuki
  • Patent number: 10067397
    Abstract: A first substrate (10) in a liquid crystal display device (100) includes a first electrode (11) provided in each pixel and a second electrode (12) generating a lateral electric field in a liquid crystal layer (30) together with the first electrode. A second substrate (20) includes a third electrode (21) generating a vertical electric field in the liquid crystal layer together with the first electrode and the second electrode. Each pixel exhibits, in a switched manner, a black display state where black display is provided in a state where the vertical electric field is generated in the liquid crystal layer, a white display state where white display is provided in a state where the lateral electric field is generated in the liquid crystal layer, and a transparent display state where a rear side of a liquid crystal display panel (1) is seen through in a state where no voltage is applied to the liquid crystal layer.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: September 4, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takahiro Sasaki, Iori Aoyama, Yuichi Kita, Kazutaka Hanaoka
  • Patent number: 10037984
    Abstract: A display device including: a substrate including a display area and a non-display area; a first pad terminal and a second pad terminal disposed in the non-display area, the first pad terminal arranged along a first row and the second pad terminal arranged along a second row; a first connection unit connected to the first pad terminal; a first driving integrated circuit connected to the first connection unit; a second connection unit connected to the second pad terminal; and a second driving integrated circuit connected to the second connection unit, wherein first connection unit is disposed overlapping the second connection unit.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: July 31, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventor: Myongsoo Oh
  • Patent number: 10020199
    Abstract: Initial film layers prepared from tin(II) chloride spontaneously generate open cavities when the initial film layers are thermally cured to about 400° C. using a temperature ramp of 1° C./minute to 10° C./minute while exposed to air. The openings of the bowl-shaped cavities have characteristic dimensions whose lengths are in a range of 30 nm to 300 nm in the plane of the top surfaces of the cured film layers. The cured film layers comprise tin oxide and have utility in gas sensors, electrodes, photocells, and solar cells.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: July 10, 2018
    Assignee: International Business Machines Corporation
    Inventors: Amy N. Bowers, Luisa D. Bozano, Andrea Fasoli, Krystelle Lionti, Elizabeth M. Lofano, Robert D. Miller, Linda K. Sundberg
  • Patent number: 10001667
    Abstract: Disclosed is a display apparatus a display of which includes a liquid crystal panel; a light source configured to emit light toward the liquid crystal panel; a first polarization layer disposed on a first surface of the liquid crystal panel and configured to transmit a first polarized component of the light emitted from the light source; a second polarization layer disposed on a second surface of the liquid crystal panel opposed to the first surface and configured to transmit a second polarized component of light emitted from the liquid crystal panel; and a color filter disposed on a surface of the second polarization layer from which the second polarized component exits, the color filter comprising a quantum dot layer configured to filter light having preset colors out of the second polarized component exiting the second polarization layer.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: June 19, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinhyun Cho, Jonghee Han
  • Patent number: 9989678
    Abstract: In an anisotropic optical film including two or more anisotropic light diffusion layers where a linear transmittance varies depending on an incident light angle, each of the anisotropic light diffusion layers has a matrix region and a plurality of pillar regions that differ in refractive index from the matrix region, at least two types of anisotropic light diffusion layers (a) and (b) that differ in aspect ratio between a short diameter and a long diameter at a cross section perpendicular to an orientation direction of the pillar regions are used as the anisotropic light diffusion layers, the aspect ratio between the short diameter and the long diameter in the pillar regions is made less than 2 in the anisotropic light diffusion layer (a), and the aspect ratio between the short diameter and the long diameter in the pillar regions is made 2 or more and 20 or less in the anisotropic light diffusion layer (b).
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: June 5, 2018
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Tsubasa Sakano, Masahide Sugiyama
  • Patent number: 9938229
    Abstract: The present invention relates to polymerizable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerizable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment type.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: April 10, 2018
    Assignee: MERCK PATENT GMBH
    Inventors: Eveline Baron, Julian Vogt, Qiong Tong, Constanze Brocke, Helga Haas, Alexander Hahn