Electrical Excitation Of Liquid Crystal (i.e., Particular Voltage Pulses, Ac Vs. Dc, Threshold Voltages, Etc.) Patents (Class 349/33)
  • Patent number: 11927851
    Abstract: A display panel and a display device are provided. The display panel includes a first base substrate; a second base substrate opposite to the first base substrate; a liquid crystal layer between the first and second base substrates; a first alignment film at a side of the first base substrate facing the liquid crystal layer; a second alignment film at a side of the second base substrate facing the liquid crystal layer; a polarizer at a side of the first base substrate away from the liquid crystal layer; and a quarter-wave plate between the polarizer and the first base substrate. An angle between a center line of an included angle between the first alignment direction of the first alignment film and the second alignment direction of the second alignment film and a slow axis of the quarter-wave plate is in a range from 75 to 105 degrees.
    Type: Grant
    Filed: January 18, 2021
    Date of Patent: March 12, 2024
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hao Liu, Ruichen Zhang, Kaixuan Wang, Yanqing Chen, Zhao Zhang, Yanni Liu, Li Tian
  • Patent number: 11927861
    Abstract: A display panel and a display device are disclosed, relating to the display technical field. The display panel comprises a display layer and a light control layer which are laminated, the light control layer comprises a plurality of light control pixel areas, the light control pixel areas comprise a thin film transistor, the display layer comprises a plurality of display pixel areas, and the display pixel areas comprise a green sub-pixel; the orthographic projection of the green sub-pixel on the light control pixel area is close to the area where the thin film transistor is located.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: March 12, 2024
    Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Renhui Yu, Wen Zha, Xin Chen, Hongzhou Xie, Shangtao Zheng, Meizhen Chen, Ying Tian, Zengrong Li, Ye Hu, Qingna Hou, Kai Diao
  • Patent number: 11929005
    Abstract: Provided are a drive compensation method and system of a display panel and a display device. The drive compensation method includes: determining at least one of the impedance and capacitive reactance variation curve of a first signal line in a column direction and determining the charge rate variation curve of first pixel units in a row direction; determining the compensation coefficients for a respective pixel unit in the column direction and/or the row direction according to the impedance and capacitive reactance variation curve of the first signal line in the column direction and/or the charge rate variation curve of first pixel units in the row direction; and compensating the compensation coefficients for the respective pixel unit in the column direction and/or the row direction to the drive signal of the respective pixel unit to drive the respective pixel unit.
    Type: Grant
    Filed: December 30, 2022
    Date of Patent: March 12, 2024
    Assignee: Xiamen Tianma Display Technology Co., Ltd.
    Inventors: Qiang Chen, Chen Zhong, Meng Lai, Wang Yu, Jingxiong Zhou, Zhiqiang Xia
  • Patent number: 11921376
    Abstract: A liquid crystal display panel includes: a first base, a second base disposed opposite to the first base, a liquid crystal layer and a first optical compensation layer that are disposed between the first base and the second base, and a second optical compensation layer disposed on a side of the first base away from the liquid crystal layer or on a side of the second base away from the liquid crystal layer. An orthogonal projection of an optic axis of the first optical compensation layer on the first base is parallel to orthogonal projections of optic axes of liquid crystal molecules in the liquid crystal layer on the first base. An orthogonal projection of an optic axis of the second optical compensation layer on the first base is perpendicular to the orthogonal projection of the optic axis of the first optical compensation layer on the first base.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: March 5, 2024
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Lintao Ji, Feifei Wang, Kaixuan Wang, Hongming Zhan, Bowen Li, Jiao Li, Xibin Shao
  • Patent number: 11913620
    Abstract: Illumination device for a motor vehicle headlight, which is configured to perform at least two different light functions and has an illuminant and an optical device associated with the illuminant, wherein the optical device has an adjustment means configured to adjust operating states of the optical device, wherein in a first operating state, the optical device is substantially transparent, and in a second operating state, the optical device is configured to scatter, wherein the illuminant comprises a plurality of light sources spaced apart from one another at a minimum distance, wherein the adjustment means is configured to adjust the optical device such that in the first operating state, a light propagation direction of the rays of light remains unchanged, and in the second operating state, the light propagation direction of the rays of light is changed by scattering the rays of light on scattering elements of the optical device.
    Type: Grant
    Filed: June 5, 2023
    Date of Patent: February 27, 2024
    Assignee: ZKW Group GmbH
    Inventor: Manuel Stadler
  • Patent number: 11908393
    Abstract: According to one embodiment, a display device includes a display region where pixels are arranged. Each of the pixels includes a pixel electrode, a light emitting element, a drive transistor, a first capacitance electrode layer opposed to the pixel electrode and held at a constant potential, and an insulating layer forming an auxiliary capacitance together with the pixel electrode and the first capacitance electrode layer. A value of the auxiliary capacitance of the first pixel, of the values of the auxiliary capacitance of the pixels is the largest.
    Type: Grant
    Filed: December 14, 2022
    Date of Patent: February 20, 2024
    Assignee: Japan Display Inc.
    Inventors: Tetsuo Morita, Yasuhiro Ogawa
  • Patent number: 11906859
    Abstract: The present disclosure provides a display substrate and a display device. The display substrate includes a base substrate, and a transistor, an anti-static wire, a first anti-static resistor and a first ground bonding pad on the base substrate, wherein a first terminal of the first anti-static resistor is electrically connected to a first end of the anti-static wire, a second terminal of the first anti-static resistor is electrically connected to the first ground bonding pad, and the first anti-static resistor is at a different layer from a layer at which the anti-static wire is located and a layer at which the first ground bonding pad is located, and is at a same layer as an active layer of the resistor.
    Type: Grant
    Filed: March 31, 2023
    Date of Patent: February 20, 2024
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongfei Cheng, Hui Li
  • Patent number: 11906829
    Abstract: A display system includes: a transmissive liquid crystal display panel; a scattering panel having a scattering area provided with a scattering portion; a temperature detector having a temperature detection area provided with a resistor element; a light source configured to emit projection light to the liquid crystal display panel; and a controller configured to control operations of the scattering panel and the light source based on an output of the temperature detector corresponding to a temperature of the resistor element. A display area of the liquid crystal display panel, the scattering area, and the temperature detection area overlap one another. The projection light that has passed through the display area and the scattering area is projected onto a light-transmitting projection target. When an output indicating that the temperature of the resistor element is a predetermined temperature or higher is acquired, the controller causes the scattering portion to scatter light.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: February 20, 2024
    Assignee: Japan Display Inc.
    Inventor: Masashi Takahata
  • Patent number: 11886085
    Abstract: Provided is an array substrate. The array substrate includes: a base substrate, and a plurality of gate lines, a plurality of data lines, a plurality of sub-pixels and a plurality of touch signal lines disposed on the base substrate. The data lines have a plurality of first extending parts and a plurality of second extending parts which are in an alternating arrangement. When the array substrate is used to prepare a liquid crystal display panel and the liquid crystal display panel is displaying, in each column of the sub-pixels, the voltage polarities of the two adjacent sub-pixels which respectively belong to two adjacent first pixel regions are opposite.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: January 30, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY DROUP CO., LTD.
    Inventors: Xuerui Gong, Yong Yu, Chang Zhang, Jiangsheng Wang
  • Patent number: 11862063
    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: January 10, 2023
    Date of Patent: January 2, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hye-Jin Shin, Won-Kyu Kwak, Kwang-Min Kim
  • Patent number: 11841613
    Abstract: The present invention is a window pane assembly system and method utilizing locking a locking system for easy insertion of a second window pane and an electro kinetic strip or film on these window panes. These electrokinetic strips and films have the capability to do many things on the window panes like changing the opacity of the windows and allowing certain levels of light through the window. The use of this technology can create more opportunities for creating advertisements on window surfaces, storing energy or repelling solar energy for building temperature management and energy savings. The electrokinetic film can be used with a remodel of window panes or the electrokinetic strips and films can be built into new window panes. With the ability of the electrokinetic devices to allow certain levels of light in, there is the opportunity for many more technological advancements on the window panes.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: December 12, 2023
    Inventor: Timothy Koch
  • Patent number: 11829026
    Abstract: Embodiments of the present disclosure provide a display panel, a driving method thereof and a display device. The display panel includes: a light guide plate, configured to propagate light incident at a set angle by total reflection; an opposite substrate, arranged opposite to the light guide plate; a liquid crystal layer, arranged between the light guide plate and the opposite substrate; and a plurality of light extraction structures. Each light extraction structure includes: a light taking grating arranged on a surface of the light guide plate, a first wire grid structure arranged between the light guide plate and the liquid crystal layer, a second wire grid structure arranged between the liquid crystal layer and the opposite substrate, and a first electrode structure and a second electrode structure arranged between the light guide plate and the opposite substrate.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: November 28, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Xiandong Meng, Jifeng Tan, Wei Wang, Xianqin Meng, Jian Gao, Xiaochuan Chen
  • Patent number: 11822187
    Abstract: A technique comprising: providing on an outer side of a support film of a liquid crystal cell one or more first components having an oxygen transmission rate (OTR) at least 100,000 times lower than said support film of the liquid crystal cell; wherein the method further comprises interposing a preprepared oxygen-permeable adhesive film between said support film of the liquid crystal cell and an innermost one of said one or more first components; wherein the pre-prepared oxygen-permeable adhesive film has a thickness greater than another adhesive film provided on said outer side of said support film outside of said innermost one of said one or more first components.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: November 21, 2023
    Assignee: Flexenable Technology Limited
    Inventors: Francesca Bottacchi, Jan Jongman, Jonathan Huggins
  • Patent number: 11796870
    Abstract: An array substrate, a light control panel, and a display device are disclosed. The array substrate includes a data line layer, a base substrate, a first electrode layer, and a second electrode layer. The first electrode layer includes gate lines, each gate line integrally extends along a first direction, and includes first broken line structures directly connected in sequence in the first direction; the data line layer includes data lines, each data line integrally extends along a second direction; the gate lines and the data lines cross each other to define light control pixel units; the second electrode layer includes common electrodes, each common electrode is provided in at least one light control pixel unit; and at least one gate line at least partially overlaps with an orthographic projection of at least one common electrode on the first electrode layer.
    Type: Grant
    Filed: September 27, 2020
    Date of Patent: October 24, 2023
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jianhua Huang, Yingmeng Miao, Chongyang Zhao, Zhihua Sun, Yingying Qu, Ting Dong, Yifu Chen, Lingdan Bo, Senwang Li
  • Patent number: 11793042
    Abstract: The present application provides a display panel and a fabrication method thereof. In the display panel, a bonding module covers a display area and an extension area, and a bonding conductive layer of the bonding module is electrically connected to an external driving chip. A display module covers the display area and the extension area, the display module comprises a thin film transistor array structure, and the thin film transistor array structure comprises a source-drain conductive layer. A portion of the source-drain conductive layer in the extension area is electrically connected to the bonding conductive layer by a through hole.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: October 17, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Jing Zhou, Yixian Zhang, Wenxu Xianyu
  • Patent number: 11754899
    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first insulating substrate, a scanning line, a signal line, a switching, and a pixel electrode. The liquid crystal layer includes a polymer in a shape of a streak and a liquid crystal molecule. The scanning line includes a conductive layer located between the first insulating substrate and the liquid crystal layer, and a first reflective layer located between the first insulating substrate and the conductive layer and having a reflectance higher than a reflectance of the conductive layer.
    Type: Grant
    Filed: January 23, 2023
    Date of Patent: September 12, 2023
    Assignee: Japan Display Inc.
    Inventors: Kentaro Okuyama, Yudai Numata
  • Patent number: 11756496
    Abstract: A display device includes: pixel electrodes including a first pixel electrode and a second pixel electrode adjacent to the first pixel electrode in a first direction; switching elements including a first switching element coupled to the first pixel electrode and a second switching element coupled to the second pixel electrode; gate lines including a first gate line coupled to the first switching element and a second gate line coupled to the second switching element; a gate driver supplying a gate signal to the gate lines; and drive electrodes including a first drive electrode and a second drive electrode adjacent to the first drive electrode in the first direction. The first drive electrode overlaps the first and second pixel electrodes, and the second gate line. The second drive electrode overlaps the first gate line. The gate driver supplies the gate signal to the first and second gate lines simultaneously.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: September 12, 2023
    Assignee: Japan Display Inc.
    Inventors: Kohei Kinoshita, Chihiro Tanaka
  • Patent number: 11747706
    Abstract: Provided are an optical device and a method of manufacturing the optical device including a lower electrode; an insulating layer provided on the lower electrode; upper electrodes provided on the insulating layer; and variable conductivity patterns provided to be adjacent to the upper electrodes, respectively, on the insulating layer. The upper electrodes include first and second electrodes that are alternately provided, a pitch between the first electrodes is identical to a pitch between the second electrodes, the second electrode is provided between the adjacent first electrodes, a distance between one of the adjacent first electrodes and the second electrode is a first length, a distance between another one of the adjacent first electrodes and the second electrode is a second length, and the second length differs from the first length.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: September 5, 2023
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Min Seok Jang, Sangjun Han, Shinho Kim
  • Patent number: 11719979
    Abstract: The present disclosure provides an array substrate, a dimming liquid crystal panel and a display panel. The array substrate includes: a first transparent electrode layer with a plurality of slit structures, wherein the first transparent electrode layer comprises a plurality of domains, the plurality of domains comprise at least two types of domains, each of the plurality of domains is adjacent to different types of domains along both a row direction and a column direction; and a plurality of gate lines extending along the row direction and a plurality of data lines extending along the column direction, the plurality of gate lines and the plurality of data lines crossing to define a plurality of dimming regions arranged in an array.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: August 8, 2023
    Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yue Du, Wei Guo, Ke Dai, Lei Guo, Liangliang Jiang, Jiaqing Liu, Yuanhui Guo
  • Patent number: 11697770
    Abstract: The present invention provides a liquid crystal composition with which a light absorption anisotropic film excellent in plane shape uniformity with a high alignment degree can be formed, a method of producing same, a light absorption anisotropic film, a laminate, and an image display device. The liquid crystal composition contains a high-molecular weight liquid crystal compound, and a dichroic substance, where the composition is a copolymer containing 90% by mass or more of a repeating unit (1) of Formula (1) and 10% by mass or less of a repeating unit (2) of Formula (2). In Formulae (1) and (2), P1 to P3 represent main chains, L1 to L3 represent a single bond or divalent linking group, P2 to SP3 represent a single bond or spacer group (SP1), M1 to M3 represent mesogenic groups, T1 represents a terminal group, and n and m are integers of 0 or 1.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: July 11, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Matsuyama, Wataru Hoshino
  • Patent number: 11665944
    Abstract: Embodiments of the present disclosure provide a display panel and a display device. The display panel includes a substrate; a first electrode; a second electrode; an organic light-emitting functional layer; a line scanning drive circuit located in a surrounding area; a first flat layer; a fixed potential signal line located in the surrounding area, wherein the fixed potential signal line includes a first and a second conductive parts; an overlapping area is formed between an orthographic projection of the second conductive part on the substrate and an orthographic projection of the line scanning drive circuit on the substrate; the second conductive part includes a plurality of first through holes; and a conductive connection layer; and the conductive connection layer and the second conductive part at least are in direct contact in the overlapping area between the second conductive part and the line scanning drive circuit.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: May 30, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Pengfei Yu, Haigang Qing, Tinghua Shang, Jie Dai, Lu Bai, Chenxing Wan, Qiang Zhang
  • Patent number: 11626575
    Abstract: A display device according to an embodiment may include a base layer including a first surface and a second surface, a pixel circuit layer including a first line on the first surface, a display element layer on the pixel circuit layer and including a display element, a thin film encapsulation layer on the display element layer, a first protective layer on the thin film encapsulation layer, and a second line on the second surface to correspond to the first line. The first protective layer may include a transparent insulating material.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: April 11, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gyung Min Baek, Hyun Ah Sung, Hyun Eok Shin
  • Patent number: 11587493
    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: June 1, 2021
    Date of Patent: February 21, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hye-Jin Shin, Won-Kyu Kwak, Kwang-Min Kim
  • Patent number: 11536994
    Abstract: A liquid crystal device includes a liquid crystal panel and a liquid crystal driver. The liquid crystal panel includes a segment electrode, a segment signal line connected to the segment electrode, and a segment signal line connected to the segment electrode. The liquid crystal driver includes a segment terminal to be connected to the segment signal line, a segment driving circuit that outputs a segment driving signal to the segment terminal, a segment terminal to be connected to the segment signal line, and an anomalous segment detection circuit that detects anomalous driving of the segment electrode based on a segment monitoring signal that is input to the segment terminal from the segment electrode via the segment signal line.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: December 27, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hironori Kobayashi, Norichika Muraki
  • Patent number: 11520440
    Abstract: A display device includes a display panel having a display area displaying an image and a non-display area disposed outside of the display area, and a sensing part including a plurality of sensing electrodes, a plurality of sensing circuits corresponding one-to-one to the plurality of sensing electrodes, and a plurality of sensing lines connecting the plurality of sensing electrodes and the plurality of sensing circuits in one-to-one. The plurality of sensing electrodes are disposed in an area overlapping the display area, and the plurality of sensing circuits are disposed in an area overlapping the non-display area.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: December 6, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-sun Kim, Mukyung Jeon
  • Patent number: 11500603
    Abstract: A tile display device includes element display devices, each including an element display panel which defines a display area and a panel driver disposed on a seam area surrounding the display area, and a coupling display device disposed on element display devices and coupled to the element display devices at neighboring seam areas. The coupling display device includes a boundary display panel on the neighboring seam areas, a coupler which couples the boundary display panel to the element display panels to provide a coupling panel structure, a boundary driver which drives the boundary display panel and a signal control center which drives the coupling panel structure.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: November 15, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seungbo Shim, Jinsuek Kim, Saeron Park, Hokil Oh, Eunggyu Lee, Jae-Soo Jang
  • Patent number: 11488987
    Abstract: The disclosure relates to the technical field of display devices and discloses a display substrate, a splicing screen and a manufacturing method thereof. The display substrate includes a flexible substrate; a plurality of signal lines located at one side of the flexible substrate; a plurality of plating electrodes located at one side of the signal lines toward the flexible substrate and electrically connected to the signal lines in one-to-one correspondence; a plurality of first through holes in one-to-one correspondence to the plating electrodes and penetrating the flexible substrate and exposing the plating electrodes, the first through roles being filled with a conductive material inside; and a plurality of binding electrodes located at one side of the flexible substrate away from the signal lines and in one-to-one correspondence to the first through holes, the binding electrodes being electrically connected to corresponding plating electrode through conductive material in corresponding first through hole.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: November 1, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Yingwei Liu, Shuang Liang, Zhiwei Liang, Muxin Di, Ke Wang, Zhanfeng Cao
  • Patent number: 11475859
    Abstract: A display device includes: pixel electrodes including a first pixel electrode and a second pixel electrode adjacent to the first pixel electrode in a first direction; switching elements including a first switching element coupled to the first pixel electrode and a second switching element coupled to the second pixel electrode; gate lines including a first gate line coupled to the first switching element and a second gate line coupled to the second switching element; a gate driver supplying a gate signal to the gate lines; and drive electrodes including a first drive electrode and a second drive electrode adjacent to the first drive electrode in the first direction. The first drive electrode overlaps the first and second pixel electrodes, and the second gate line. The second drive electrode overlaps the first gate line. The gate driver supplies the gate signal to the first and second gate lines simultaneously.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: October 18, 2022
    Assignee: Japan Display Inc.
    Inventors: Kohei Kinoshita, Chihiro Tanaka
  • Patent number: 11467436
    Abstract: A drive circuit for a dimming glass, a dimming glass device, and a drive method are disclosed. The drive circuit for the dimming glass includes: a controller, an input terminal of the controller receiving a control instruction, and configured to output a voltage control signal at an output terminal of the controller according to the control instruction; and a voltage adjustment circuit, a control input terminal of the voltage adjustment circuit being connected to the output terminal of the controller, a power input terminal of the voltage adjustment circuit being connected to a first power supply, and a voltage output terminal of the voltage adjustment circuit being connected to a voltage input terminal of the dimming glass, and configured to generate an output voltage signal at the voltage output terminal of the voltage adjustment circuit according to the voltage control signal.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: October 11, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Yongbo Wang, Chen Meng
  • Patent number: 11436991
    Abstract: Provided is a display device including a display panel and a gate driving circuit. The gate driving circuit includes a stage part including a first stage group and a second stage group cascade-connected to the first stage group, a branch line part having first branch lines electrically connected to the first stages, respectively, and second branch lines electrically connected to the second stages, respectively, line pattern rows having first pattern rows electrically connected to the first branch lines and second pattern rows electrically connected to the second branch lines, respectively, and a signal line facing the line pattern rows in the first direction. Any one second branch line among the second branch lines includes a first line portion extending in the first direction and a second line portion extending in the second direction and disposed between the signal line and the line pattern rows on a plane.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: September 6, 2022
    Inventors: Dong Hee Shin, Geunho Lee, Yonghee Lee
  • Patent number: 11402656
    Abstract: A display switching device, a display device and an electronic device are provided. The display switching device includes: a controller; and a lens array, including a plurality of diffractive lenticular lenses, wherein each of the diffractive lenticular lenses includes: a first substrate, including a diffraction phase grating array; a liquid crystal element, including liquid crystal being filled in the diffraction phase grating array; a first electrode layer and a second electrode layer configured to apply a voltage to the liquid crystal element, wherein the controller is configured to acquire a corresponding display mode and apply a control voltage corresponding to the display mode to the first electrode layer and the second electrode layer according to the display mode to change a refractive index state of the liquid crystal element.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: August 2, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jian Gao, Xue Dong, Xiaochuan Chen, Yafeng Yang, Pengcheng Lu, Wei Wang, Xinli Ma
  • Patent number: 11403977
    Abstract: A display panel and a method of driving a display panel are provided. The display panel includes at least one display subpixel. The display subpixel includes a first display region located at a middle part of the display subpixel and a second display region located at a peripheral part of the display subpixel in a first direction; and the display subpixel is configured to enable brightness of the second display region to be greater than brightness of the first display region in a case of displaying an image.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: August 2, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhongxiao Li, Wenqing Zhao, Jinye Zhu, Xiaochuan Chen
  • Patent number: 11385520
    Abstract: Provided by embodiments of the present disclosure are a dual-view display method and device, and a non-transitory computer readable storage medium. The dual-view display method is used for a dual-view display device including a display module and a liquid crystal grating, the method includes obtaining information of an observer, adjusting an operation mode of the liquid crystal grating according to the information of the observer, to adjust a light exiting direction and a display mode of the display device and displaying an image in the display mode according to the information of the observer, and the operation mode of the liquid crystal grating is adjustable.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: July 12, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Wei Wei
  • Patent number: 11376964
    Abstract: A vehicle display device includes a display device, a reflecting mirror, an optical sensor configured to detect external light, and a controller configured to enable execution of a temperature lowering operation. The display device includes a light transmissive liquid crystal display unit disposed on an optical path of light emitted from a light source and a first optical member disposed between the liquid crystal display unit and the light source and configured to change an optical path of light that enters the first optical member from the light source and passes therethrough toward the liquid crystal display unit. The optical sensor is disposed on an optical path of the external light incident on the display device at a side opposite to the liquid crystal display unit across the first optical member. The first optical member includes a passage on an optical path through which the external light passes.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: July 5, 2022
    Assignee: YAZAKI CORPORATION
    Inventors: Yuta Miyake, Kenji Yagi, Naohisa Murata, Yusuke Sugiura
  • Patent number: 11378847
    Abstract: An array substrate, a display panel, and a display device are provided. In the array substrate, each of the pixel units includes a first pixel region and a second pixel region. The array substrate includes an alignment film located on the base substrate, a plurality of first electrode strips located in the first pixel region, and a plurality of second electrode strips located in the second pixel region. The alignment film has a first alignment direction and a second alignment direction. An extension direction of the first electrode strip and the first alignment direction have a first included angle, an extension direction of the second electrode strip and the second alignment direction have a second included angle, and the first included angle is less than the second included angle.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: July 5, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventors: Liangliang Jiang, Renxu Lin, Mookeun Shin, Yong Jun Yoon
  • Patent number: 11373595
    Abstract: A display device includes: luminance converter that converts an input gradation value into a target luminance value corresponding to the input gradation value; correction calculator that calculates an output gradation value from the target luminance value and calculates a corrected luminance value from the output gradation value using an efficiency residual rate; cumulative stress calculator that updates the efficiency residual rate using a cumulative stress amount obtained by converting a stress amount on the light emitting element calculated from the corrected luminance value into a first stress amount at a reference current and accumulating a second stress amount obtained by converting the converted first stress amount according to a frame rate; and stress amount converter that converts the first stress amount into the second stress amount by multiplying the first stress amount by a conversion coefficient corresponding to the frame rate obtained from the video signal.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: June 28, 2022
    Assignee: JOLED INC.
    Inventor: Eiji Iwauchi
  • Patent number: 11372500
    Abstract: A display device according to an example embodiment includes a display portion displaying an image, and a sense portion that is disposed over one side of the display portion, and senses an external input, wherein the sense portion includes: at least one of first sense electrodes receiving a first sense signal that is changed in response to the external input, at least one of second sense electrodes that are disposed at a distance from the first sense electrodes, wherein the first sense electrodes are disposed between the second sense electrodes, and at least one of compensation electrode that are disposed spaced apart from and between the first sense electrodes, and to which a compensation signal is applied, wherein the compensation signal and the first sense signal are inverted in phase.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: June 28, 2022
    Inventor: Sang Hyun Lim
  • Patent number: 11340507
    Abstract: An array substrate and a display panel are provided, including a plurality of pixel grouping units, a plurality of data lines and a plurality of dual scan lines. Each of the pixel grouping units includes at least two subpixels. The plurality of pixel grouping units are arranged in rows and columns Adjacent pixel grouping units arranged in a row direction have opposite polarities and adjacent pixel grouping units arranged in a column direction have opposite polarities. Each of the data lines is located between any two adjacent columns of the pixel grouping units. Each of the plurality of dual scan lines is located between any two adjacent rows of the subpixels.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: May 24, 2022
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Hui Yang
  • Patent number: 11307446
    Abstract: A display device is disclosed that has a touch sensor, which includes a display panel, an integrated driving circuit, a common voltage ring line, and a common voltage feedback line. The integrated driving circuit outputs a touch driving signal and a display common voltage for respectively driving a touchscreen and the display panel. The integrated driving circuit outputs the display common voltage through a common voltage ring pad in a period in which the display panel is driven and outputs a load-free common voltage having a form different from that of the display common voltage through the common voltage ring pad in a period in which the touchscreen is driven.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: April 19, 2022
    Assignee: LG Display Co., Ltd.
    Inventor: Seung-Kuk Ahn
  • Patent number: 11300756
    Abstract: A method is provided for adjusting a loupe including an eyepiece and a tube framework having a first optical system adjacent to an object and a second optical system adjacent to the eyepiece. At least two zoom lenses in the first optical system shift along an optical axis between a first and a second position to change magnification. The method includes shifting at least one lens in the first optical system such that a distance at which the object is focused when the zoom lenses are shifted to the first position is substantially equal to a distance at which the object is focused when the zoom lenses are shifted to the second position; and then shifting at least one lens in the second optical system along the optical axis such that the object is focused when the zoom lenses are shifted to the first position or the second position.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: April 12, 2022
    Assignee: Konica Minolta, Inc.
    Inventor: Isao Ishimoda
  • Patent number: 11276359
    Abstract: A display panel for displaying an image is provided with a plurality of pixels arranged in a matrix. Each pixel includes one or more units each including a plurality of subunits. Each subunit includes a transistor in which an oxide semiconductor layer which is provided so as to overlap a gate electrode with a gate insulating layer interposed therebetween, a pixel electrode which drives liquid crystal connected to a source or a drain of the transistor, a counter electrode which is provided so as to face the pixel electrode, and a liquid crystal layer provided between the pixel electrode and the counter electrode. In the display panel, a transistor whose off current is lower than 10 zA/?m at room temperature per micrometer of the channel width and off current of the transistor at 85° C. can be lower than 100 zA/?m per micrometer in the channel width.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: March 15, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Patent number: 11269204
    Abstract: A viewing angle switchable liquid crystal display device includes a display panel. The display panel includes a first substrate, a second substrate disposed opposite the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The second substrate is provided with a first electrode and a second electrode. The first electrode is a common electrode, and the second electrode is a pixel electrode. The first substrate is provided with a third electrode for controlling the switching of the viewing angle. A periodic alternating voltage is applied to the third electrode when the viewing angle of the liquid crystal display device is switched, and a period of the periodic alternating voltage is an even multiple of a refresh period of each frame of the display panel.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: March 8, 2022
    Assignee: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.
    Inventors: Te-Chen Chung, Chia-Te Liao, Zifang Su, Limei Jiang
  • Patent number: 11271051
    Abstract: A light source panel and a display device are disclosed. The display device includes: a display panel of reflection type and a light source panel disposed on a light emitting side of the display panel, the light source panel includes a parallax barrier structure and light emitting units, the parallax barrier structure includes light splitting components, the light splitting components include at least a non-transparent state, the light transmission areas are located in spaces between adjacent splitting light components, and the light emitting units at least partially overlap with the light splitting components in a direction perpendicular to the light source panel.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: March 8, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Weipin Hu, Xiang Feng, Congcong Wei, Chun Wang, Mingxiao Jiang, Xiao Sun
  • Patent number: 11249362
    Abstract: Disclosed is a liquid crystal display apparatus in which a low-resistance alignment film and a low-resistance liquid crystal layer are provided only in red (R) and green (G) pixel areas so as to prevent bright pixel defects caused by occurrence of data coupling (DC). The liquid crystal display apparatus includes gate lines and data lines arranged on a first substrate so as to define red (R), green (G) and blue (B) pixel areas, thin film transistors provided at intersections between the gate lines and the data lines, a first alignment film provided on the first substrate, a second substrate arranged with a uniform gap with the first substrate, red, green and blue color filter layers provided on the second substrate, and a second alignment film provided on the second substrate, wherein the first alignment film provided on the red and green color filter layers is a low-resistance alignment film.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: February 15, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Min-Suk Kong, Moon-Soo Kang, Jong-Chun Lim
  • Patent number: 11246194
    Abstract: A driver circuit for a semiconductor light source and to a method for controlling the brightness thereof are provided. When a pulse width modulated semiconductor light source reaches a duty cycle threshold value, the voltage is increased or decreased through a variable voltage source in order to achieve a higher dynamic range.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: February 8, 2022
    Assignee: SCHOTT AG
    Inventors: Bernd Woelfing, Andreas Hatzenbuehler
  • Patent number: 11227138
    Abstract: A LCD device defining a display area includes a color filter substrate, a thin film transistor (TFT) substrate facing the color filter substrate, a backlight module on a side of the TFT substrate away from the color filter substrate, a transparent cover on a side of the color filter substrate away from the TFT substrate, and a fingerprint sensor in the display area. The fingerprint sensor defines a fingerprint sensing area in the display area. The LCD device further includes a light emitting diode on a side of the transparent cover adjacent to the color filter substrate. The light emitting diode is configured to emit light toward the fingerprint sensing area of the transparent cover.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: January 18, 2022
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Wei-Chih Chang, Kuo-Sheng Lee, I-Min Lu
  • Patent number: 11208595
    Abstract: Compounds of the formula I, in which Y1 denotes —O— or —CH2—, and the groups R1, L1 to L6 and X1 have the meanings indicated in claim 1. A process for the preparation thereof, and liquid-crystalline media comprising at least one compound of the formula I and electro-optical displays containing a liquid-crystalline medium this type. The compounds of the formula I include, as structural element, a combination of a 1,4-substituted cyclohexene ring besides a dioxane or tetrahydropyran ring and a substituted biphenyl group.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: December 28, 2021
    Assignee: Merck Patent GmbH
    Inventors: Constanze Brocke, Katharina Linke, Sven Christian Laut
  • Patent number: 11199871
    Abstract: A display device includes a substrate including a display area, a non-display area, a first additional area connected to the non-display area at a first boundary, and a second additional area connected to the first additional area at a second boundary, pixels on the display area, an encapsulation film on the pixels, electrodes on the encapsulation film, pads on the second additional area, sensing wires connecting the electrodes and the pads, a first sensing insulating film on the encapsulation film, and a second sensing insulating film on the first sensing insulating film. The substrate includes a curved first side in the first additional area and the first additional area decreases in width from the first boundary to the second boundary, and a boundary of the first sensing insulating film is closer to the first side than a boundary of the second sensing insulating film is to the first side.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: December 14, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Woo Park, Ki Ho Bang, Sang Hyun Jun, Won Suk Choi
  • Patent number: 11187961
    Abstract: A liquid crystal lens and an imaging device including the liquid crystal lens are provided. The liquid crystal lens includes: a first substrate and a second substrate arranged opposite to each other; a liquid crystal layer located between the first substrate and the second substrate; the liquid crystal layer is configured to transmit a first portion of incident light transmitted through the first substrate, and converge the first portion of incident light to a predetermined region of the second substrate; and a light adjustment structure arranged between the first substrate and the second substrate, and configured to enable a second portion of incident light transmitted through the first substrate to be transmitted through the liquid crystal layer and converged to the predetermined region.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: November 30, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lijia Zhou, Zhidong Wang, Junrui Zhang, Rongjian Yan, Quanguo Zhou, Li Tian, Yungchiang Lee, Meng Guo
  • Patent number: 11183525
    Abstract: An image sensor includes a substrate including a plurality of unit pixels, a stack structure on the substrate, and a grid pattern between ones of the plurality of unit pixels on the stack structure. The grid pattern includes a lower grid pattern and an upper grid pattern on the lower grid pattern, the lower grid pattern including lanthanum oxide (LaO), amorphous silicon (a-Si), or polysilicon (poly-Si) and the upper grid pattern including a conductive material.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: November 23, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Ha Jin Lim