Alignment Layer Patents (Class 349/123)
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Patent number: 10831073Abstract: A liquid crystal on silicon (LCOS) display includes a substrate; a wafer disposed on a top surface of the substrate; a liquid crystal (LC) layer disposed on a top surface of the wafer; a sealant enclosing the LC layer; an electrode layer disposed on a top surface of the LC layer, which is confined by the wafer, the sealant and the electrode layer; at least one conductive adhesive disposed and electrically coupled between the electrode layer and the substrate; and a barrier disposed adjacent to the conductive adhesive and disposed between the electrode layer and the wafer to block particles of the conductive adhesive from entering a location between the electrode layer and the wafer.Type: GrantFiled: December 3, 2019Date of Patent: November 10, 2020Assignee: Himax Display, Inc.Inventor: Meng-Ju Wu
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Patent number: 10823990Abstract: A switchable view angle control device includes an electrically switchable zenithal bistable liquid crystal display view angle control liquid crystal device (ZBD view angle control LCD) that is operable in a first state and a second state; a front polarizer located on a viewing side of the switchable ZBD view angle control LCD; and a polarized light source located on a non-viewing side of the switchable ZBD view angle control LCD that emits light that is polarized in a first direction. When the switchable ZBD view angle control LCD in the first state, the view angle control device operates in a narrow angle view mode in which the polarization of the light from the polarized light source is changed by the switchable ZBD view angle control LCD to be polarized in a second direction that is at least partially absorbed by the front polarizer, and on-axis light passes through the switchable ZBD view angle control LCD and the front polarizer.Type: GrantFiled: May 16, 2018Date of Patent: November 3, 2020Assignee: Sharp Kabushiki KaishaInventors: Andrew Acreman, Nathan James Smith
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Patent number: 10802344Abstract: Provided is a liquid crystal display device including a first substrate; a second substrate; a liquid crystal layer sandwiched between the first substrate and the second substrate and containing a negative liquid crystal material; a first alignment film provided on the surface of the first substrate on the liquid crystal layer side; a first phase difference layer having birefringence provided between the first substrate and the first alignment film; and a second alignment film disposed on the surface of the second substrate on the liquid crystal layer side, wherein at least one of the first alignment film and the second alignment film is a photo-alignment film being in contact with the liquid crystal layer and imparting a pretilt angle of 75° or more and less than 90° to the liquid crystal material; the first phase difference layer is formed of a first polymer material having a first photofunctional group; the photo-alignment film is formed of a second polymer material having a second photofunctional group; aType: GrantFiled: September 20, 2017Date of Patent: October 13, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Masanobu Mizusaki, Kiyoshi Minoura, Akira Sakai
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Patent number: 10802330Abstract: The present disclosure provides a liquid crystal display panel and a liquid crystal display apparatus. The liquid crystal display panel includes a first substrate including a plurality of protrusions, a second substrate including an active switch array and a color filter layer formed on the active switch array, and a liquid crystal layer formed between the first substrate and the second substrate.Type: GrantFiled: February 27, 2017Date of Patent: October 13, 2020Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CORPORATION LIMITEDInventor: Yu-Jen Chen
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Patent number: 10802349Abstract: A flexible liquid crystal display panel is provided. The flexible liquid crystal display panel includes a color filter substrate and a plurality of polymer walls. The color filter substrate includes a second glass substrate, a light-shielding layer and a second flexible substrate, and the light-shielding layer is disposed between the second glass substrate and the second flexible substrate. The polymer walls are disposed between the array substrate and the color filter substrate. A width of each polymer wall is equal to a width of each light transmission portion.Type: GrantFiled: November 2, 2018Date of Patent: October 13, 2020Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.Inventor: He Jiang
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Patent number: 10802314Abstract: The present invention provides a liquid crystal display device in which display unevenness is reduced in an edge portion of a display region and the forming position of an alignment film is suitably adjusted. A liquid crystal display device includes: a display region for displaying an image; a frame region surrounding the display region; a first substrate including an insulating substrate; a second substrate facing the first substrate; a liquid crystal layer between the first substrate and the second substrate; and an alignment film on a liquid crystal layer side of the insulating substrate, the first substrate in a plan view including a groove extending to surround the display region, the groove including a first side wall on a display region side and a second side wall on a side remote from the display region, the first side wall having a smaller inclination than the second side wall.Type: GrantFiled: July 20, 2018Date of Patent: October 13, 2020Assignee: SHARP KABUSHIKI KAISHAInventor: Kohshiroh Taniike
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Patent number: 10795212Abstract: A stacked body includes a first resin film, a first electrode portion, a first alignment film, and a sealing material which are stacked, wherein the first alignment film has a permeation region where at least a part of components constituting the sealing material permeate.Type: GrantFiled: February 21, 2017Date of Patent: October 6, 2020Assignee: DAI NIPPON PRINTING CO., LTD.Inventor: Keisuke Miura
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Patent number: 10782578Abstract: A method for forming a wire portion of a liquid crystal chromic device. The method includes: a) preparing a liquid crystal chromic device by forming a transparent electrode on a substrate, and forming an alignment film on the transparent electrode; b) forming two or more etching lines spaced apart by a constant interval by irradiating the alignment film with a laser; and c) applying a conductive paste to a valley region of each of the two or more etching lines. The liquid crystal chromic device includes: a substrate; a transparent electrode provided on the substrate; an alignment film provided on the transparent electrode; and two or more etching lines provided on the alignment film. The two or more etching lines are spaced apart by a constant interval, and a valley region of each of the two or more etching lines is coated with a conductive paste.Type: GrantFiled: December 27, 2017Date of Patent: September 22, 2020Assignee: LG CHEM, LTD.Inventors: Jeong Ho Park, Bu Gon Shin, Eun Kyu Her
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Patent number: 10739630Abstract: A touch display panel and a touch display device are provided. The touch display panel, comprising an array substrate and a color filter substrate are cell-assembled, and a liquid crystal layer positioned between the array substrate and the color filter substrate. The array substrate includes a first substrate, a black matrix layer, a touch sensing layer, a first electrode layer and a pixel electrode layer are sequentially positioned, the pixel electrode layer is nearby the liquid crystal layer, the first substrate layer is positioned on a side of the pixel electrode which far away the liquid crystal layer. The touch display panel using the first substrate for controlling the touch display panel displays image while touch, the touch electrode field and driving electrode file in the touch display panel are not effect to each other, such that avoids to decrease resolution of touch display panel.Type: GrantFiled: January 4, 2018Date of Patent: August 11, 2020Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yucheng Tsai, Zhou Zhang, Pan Xu, Changwen Ma
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Patent number: 10714689Abstract: A production method for an OLED panel includes forming on an upper face side of a transparent substrate, a layered body including a resin layer, a TFT layer, an OLED layer and a sealing layer including an organic sealing film, and then irradiating the resin layer being in contact with the transparent substrate with a laser beam to separate the transparent substrate and the layered body. In the production method, the resin layer includes a first region to be irradiated with a laser beam at a first intensity P1 and a second region to be irradiated with a laser beam at a second intensity P2 greater than the first intensity, the first region overlaps with the organic sealing film, and the second region does not overlap with the organic sealing film.Type: GrantFiled: June 14, 2019Date of Patent: July 14, 2020Assignee: SHARP KABUSHIKI KAISHAInventor: Tetsunori Tanaka
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Patent number: 10706790Abstract: Provided is a novel display device without deterioration of display quality or a novel display device in which flickering due to a reduced refresh rate is suppressed. The display device includes a pixel for displaying a still image at a frame frequency of less than or equal to 1 Hz. The pixel includes a liquid crystal layer. The liquid crystal layer includes a molecule whose dipole moment is greater than or equal to 0 debye and less than or equal to 3 debye. Thus, flickering due to a reduced refresh rate can be suppressed, which leads to an improvement in display quality.Type: GrantFiled: November 26, 2015Date of Patent: July 7, 2020Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yasuhiro Niikura, Makoto Ikenaga, Daisuke Kubota, Ryo Hatsumi
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Patent number: 10690966Abstract: A material of alignment film, a method of fabricating a liquid crystal display panel, and a liquid crystal display panel are provided. The material of alignment film is obtained by mixing a polymerizable monomer in the polyamic acid solution, thus is easy to fabricate. The method of fabricating the liquid crystal display panel obtains an alignment film including a polyimide film and polymer protrusions located on a surface of the polyimide film by coating the material of alignment film on a substrate, and going through a series of processes; the alignment film can allow liquid crystal molecules arrange in vertical alignment and generate a pre-inclination angle, and a risk of the polymerizable monomer contaminating the liquid crystal molecules does not exist, so as to enhance quality of the liquid crystal display panel. The liquid crystal display panel has a simple structure and good alignment effect, and has excellent display quality.Type: GrantFiled: November 20, 2018Date of Patent: June 23, 2020Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Song Lan
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Patent number: 10684489Abstract: The invention relates to a light modulation device for a display for representing two- and/or three-dimensional image content or image sequences. The light modulation device comprises a light modulator and a controller. The phase and/or the amplitude of a light wave field, which is substantially collimated, can be varied by means of the light modulator depending on the location of the light modulator. The light modulator can be actuated by means of the control device. According to the invention, in the direction of propagation of the light wave field, at least one diffracting unit is arranged downstream of the light modulator. The diffracting unit has a variable diffracting structure. By means of the diffracting structure, the light wave field varied by the light modulator can be diffracted in a variable and predeterminable manner. Further, the present invention relates to a display and a method for producing a light modulation device.Type: GrantFiled: June 18, 2010Date of Patent: June 16, 2020Assignee: SEEREAL TECHNOLOGIES S.A.Inventors: Bo Kroll, Norbert Leister, Gerald Futterer, Robert Missbach, Stephan Reichelt
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Patent number: 10670902Abstract: A liquid crystal display device includes a thin film transistor (TFT) disposed on a substrate. The TFT is divided into pixel regions. Pixel electrodes are disposed in the pixel regions, respectively. The pixel electrodes are electrically connected with the TFT. A roof layer is disposed over the pixel electrodes. Fine spaces, which are spaced apart from each other, are each disposed between each of the pixel electrodes and the roof layer. The fine spaces include a first region and a second region that is below the first region. The second region includes a protrusion protruding in a direction substantially parallel to the substrate with respect to the first region. An alignment layer is disposed on an inner surface of each of the fine spaces. Liquid crystal molecules fill each of the fine spaces.Type: GrantFiled: June 22, 2016Date of Patent: June 2, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Boram Lee, Jiseong Yang, Taehwan Kim, Jonghwan Lee, Seokjoon Hong
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Patent number: 10663805Abstract: A material of alignment film, a method of fabricating a liquid crystal display panel, and a liquid crystal display panel are provided. The material of alignment film is obtained by mixing a polymerizable monomer in the polyamic acid solution, thus is easy to fabricate. The method of fabricating the liquid crystal display panel obtains an alignment film including a polyimide film and polymer protrusions located on a surface of the polyimide film by coating the material of alignment film on a substrate, and going through a series of processes; the alignment film can allow liquid crystal molecules arrange in vertical alignment and generate a pre-inclination angle, and a risk of the polymerizable monomer contaminating the liquid crystal molecules does not exist, so as to enhance quality of the liquid crystal display panel. The liquid crystal display panel has a simple structure and good alignment effect, and has excellent display quality.Type: GrantFiled: November 20, 2018Date of Patent: May 26, 2020Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Song Lan
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Patent number: 10656148Abstract: Chromonic azo dyes are particular types of chromonic molecules that are alignable homeotropically (aggregated molecules stack perpendicularly to the surface) on different types of substrates, often without the need of any special surface treatment. This feature enables the optimization of a detection device with increased sensitivity based of the alignment distortion created by a biological immune complex.Type: GrantFiled: November 13, 2015Date of Patent: May 19, 2020Assignee: Pathogen Systems, Inc.Inventor: Luana Tortora
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Patent number: 10643513Abstract: An array substrate, a display panel and a test method thereof and a display device. The array substrate has a display region and a peripheral region and includes a first electrode layer and a first test line. The first electrode layer includes a plurality of first signal lines arranged along a first direction, and the first signal lines extend from the peripheral region to the display region; the first test line is provided in the peripheral region, and extends along the first direction; the first test line is overlapped with and insulated from the first signal lines.Type: GrantFiled: November 6, 2017Date of Patent: May 5, 2020Assignees: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Co., Ltd.Inventors: Xiang Wang, Wei Xu, Yu e Ke
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Patent number: 10642089Abstract: The present disclosure provides a liquid crystal display panel, an liquid crystal display apparatus, and a method for manufacturing same. The liquid crystal display panel includes a substrate, a black matrix disposed on the substrate, an alignment layer disposed on the black matrix, and a groove disposed on the black matrix and arranged around the alignment layer, wherein the sealant is arranged on an outside of the groove, to prevent diffusion of the alignment layer according to feature of the groove, avoid overlap of the alignment layer and the sealant and improve the cell quality.Type: GrantFiled: April 20, 2017Date of Patent: May 5, 2020Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Yu-Jen Chen
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Patent number: 10634953Abstract: According to one embodiment, a display device includes a first substrate including a scanning line and a pixel electrode, a second substrate opposed to the first substrate, and a liquid crystal layer held between the first substrate and the second substrate and including streaky polymers and liquid crystal molecules, wherein the liquid crystal layer includes a first area overlapping the scanning line and a second area overlapping the pixel electrode, and the polymers of the first area are denser than the polymers of the second area.Type: GrantFiled: June 26, 2018Date of Patent: April 28, 2020Assignee: Japan Display Inc.Inventors: Kentaro Okuyama, Yudai Numata
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Patent number: 10629324Abstract: New stretchable electrically conductive composite materials comprising at least one polymer and a plurality of nanoparticles are provided, which exhibit high conductivity even at high strain levels. The composite may comprise polyurethane as the polymer and spherical gold nanoparticles. Such materials have conductivity levels as high as 11,000 Scm?1 at 0% strain and 2,400 Scm?1 at 110% strain. Furthermore, certain embodiments of the composite have a maximum tensile strain of 480% while still exhibiting conductivity of 35 Scm?1. The inventive materials are highly flexible, highly conductive and suitable for a variety of applications, especially for advanced medical devices, implants, and flexible electronics. The disclosure also provides methods of making such stretchable electrically conductive nanocomposites, including formation by layer-by-layer and vacuum assisted flocculation.Type: GrantFiled: February 19, 2018Date of Patent: April 21, 2020Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Nicholas A. Kotov, Yoonseob Kim, Jian Zhu, Matthew Di Prima, Bongjun Yeom
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Patent number: 10620496Abstract: An array substrate, a manufacturing method thereof and a liquid crystal display panel are provided. The array substrate comprises a source-drain layer stacked, a pixel electrode layer and an interval layer, comprising a via hole structure. The pixel electrode layer is electrically connected to the source-drain layer through the via hole structure, comprising a via hole and a plurality of drainage grooves provided at intervals on an edge of the via hole. The pixel electrode layer forms a groove corresponding to the via hole, and the pixel electrode layer forms a sub-drainage groove corresponding to each drainage groove. When the alignment layer is disposed on the pixel electrode, an alignment liquid for forming an alignment layer flow into the groove through a sub-drainage groove, so that the groove can also cover an alignment film and ensure a normal display of the liquid crystal display panel formed by the array substrate.Type: GrantFiled: March 9, 2018Date of Patent: April 14, 2020Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Renpeng Li, Yoneda Kotaro
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Patent number: 10613359Abstract: The present disclosure discloses a table for an optical alignment device, an optical alignment device, and an optical alignment method for a substrate. The table for an optical alignment device includes: a base including a rotation shaft; a support component connected with the rotation shaft; an installation component connected with the rotation shaft; a plurality of sliding guiding mechanisms connected with the installation component; and a plurality of groups of light shielding mechanisms; wherein each sliding guiding mechanism is slidably installed with a group of light shielding mechanisms, each light shielding mechanism in each group of light shielding mechanisms includes a light shielding plate which can slide to above a selected area of the support component.Type: GrantFiled: September 28, 2017Date of Patent: April 7, 2020Assignees: BOE Technology Group Co., Ltd., Beijing BOE Display Technology Co., Ltd.Inventors: Hongye Zuo, Xu Wang, Aizhen Jia
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Patent number: 10591784Abstract: A liquid crystal display device includes a first substrate; a thin film transistor on the first substrate; a first passivation layer on the thin film transistor; a first electrode on the first passivation layer; a second passivation layer on the first electrode; a second electrode of an oxide semiconductor on the second passivation layer; and an alignment layer on the second electrode. The second electrode includes first portions and second conductive portions alternating with the first portions. A surface of the first portions is flush with the second conductive portions.Type: GrantFiled: January 13, 2017Date of Patent: March 17, 2020Assignee: LG Display Co., Ltd.Inventors: Jong-Hoon Lim, Do-Yeon Kim, Tae-Rim Lee, Sung-Won Lee, Sun-Yoon Kim
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Patent number: 10578926Abstract: An alignment film material and a preparation method thereof, an alignment film, a display substrate and a preparation method thereof, and a liquid crystal display device are provided. The alignment film material comprises: a base material for forming an alignment film matrix through a photoalignment; and a photo-thermal conversion material for generating heat under an ultraviolet light irradiation.Type: GrantFiled: September 6, 2016Date of Patent: March 3, 2020Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yongshan Zhou, Jingpeng Li, Yuekai Gao
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Patent number: 10578931Abstract: A liquid-crystal display device includes: a substrate; and an insulation film disposed on the substrate and which includes a flat portion and a projection pattern unit protruding from the flat portion in a direction perpendicular to the flat portion; and a pixel electrode disposed on the substrate. The pixel electrode includes a first stem electrode and a second stem electrode extending along a first direction and disposed to be spaced apart from the first stem in a second direction perpendicular to the first direction, and a plurality of branch electrode extending from the first stem electrode and the second stem electrode, and the projection pattern unit includes a first projection pattern extending along the first direction and partially overlapping the first stem electrode, and a second projection pattern extending along the first direction and partially overlapping the second stem electrode.Type: GrantFiled: May 26, 2017Date of Patent: March 3, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: IsraelEsteban Lazo, Heung Shik Park, Ki Chul Shin
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Patent number: 10551679Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a first alignment film covering a pixel electrode, a second substrate including a second alignment film covering a second common electrode, a sealant attaching the first substrate and the second substrate, and a liquid crystal layer held between the first alignment film and the second alignment film, wherein the first alignment film and the second alignment film are formed of a material in which a principal chain is composed of silica (SiO2), and extend at a position overlapping the sealant between an inner face and an outer face of the sealant.Type: GrantFiled: February 13, 2018Date of Patent: February 4, 2020Assignee: Japan Display Inc.Inventor: Keisuke Takano
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Patent number: 10545381Abstract: A liquid crystal display panel, a pixel electrode in each of the pixels includes a first linear electrode group extending parallel to an azimuth of approximately 45°, a second linear electrode group extending parallel to an azimuth of approximately 135°, a third linear electrode group extending parallel to an azimuth of approximately 225°, and a fourth linear electrode group extending parallel to an azimuth of approximately 315°. One of the first alignment film and the second alignment film includes a first alignment region provided with a pre-tilt angle at an azimuth of approximately 225°, a third alignment region provided with a pre-tilt angle at an azimuth of approximately 45°, and a region provided with substantially no pre-tilt angle or a pre-tilt angle at an azimuth approximately perpendicular to the linear electrode group on which the region is superimposed.Type: GrantFiled: September 26, 2016Date of Patent: January 28, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Fumikazu Shimoshikiryoh, Takehisa Yoshida
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Patent number: 10514571Abstract: A display panel according to an embodiment has a first region surrounding a second region. The display panel includes a top substrate, a bottom substrate opposite to the top substrate, a sealant located within the first region, and a display medium layer encased by the top substrate, the bottom substrate, and the sealant. A patterned light shielding layer is disposed on an upper surface of the top substrate in the first region. A light filtering layer is disposed on the top substrate in the second region of the display panel. The light filtering layer causes a reduction of a transmittance of light of wavelength ranged from about 300 nm to about 410 nm by at least about 20% to about 50%, and a transmittance of the light filtering layer for light of wavelength ranged from about 450 nm to about 800 nm is at least about 80% to 95%.Type: GrantFiled: March 21, 2018Date of Patent: December 24, 2019Assignee: Himax Display, Inc.Inventor: Po-Hung Pan
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Patent number: 10503020Abstract: A liquid crystal display including a first substrate and a second substrate facing each other; a liquid crystal layer disposed between the first substrate and the second substrate; a first liquid crystal alignment layer disposed between the liquid crystal layer and the first substrate; and a second liquid crystal alignment layer disposed between the liquid crystal layer and the second substrate. At least one of the first liquid crystal alignment layer and the second liquid crystal alignment layer includes a reactive mesogen.Type: GrantFiled: February 28, 2017Date of Patent: December 10, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Gi Hoon Yang, Sung Yi Kim, Hyun Ku Ahn, Ho Lim, Ji Phyo Hong
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Patent number: 10495636Abstract: A novel detection system and method is presented, where a two-bead receptor method is used for capturing pathogens, with one type of bead being magnetic and having a size of 3 microns or smaller, and the other type being polymeric and having a size of 3 microns or larger. The first type is used to concentrate a pathogen; the latter is used to create a detectable signal. Fast sensitive detection is achieved by collecting the optical signal created by the distortion of a homeotropically aligned chromonic azo dye in the presence of captured pathogens.Type: GrantFiled: April 13, 2017Date of Patent: December 3, 2019Assignee: Pathogen Systems, Inc.Inventor: Luana Tortora
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Patent number: 10473993Abstract: The present invention provides a pixel electrode and a liquid crystal display panel. The pixel electrode includes a first enclosure frame (15) that is connected to distal ends of all pixel electrode branches (13) and a trunk (11) and at least a second enclosure frame (17) that is set around an outer circumference of the first enclosure frame (15) and connected to the trunk (11) so that electric fields at edges of the pixel electrode are made regular and uniform by means of the arrangement of the first enclosure frame (15) and the second enclosure frame (17) and thus, liquid crystal molecules located around edges of a sub-pixel could be oriented in a more consistent or more uniform manner, making it possible to eliminate dark patterns at the edges of the sub-pixel and increasing the optical transmission rate of the liquid crystal display panel.Type: GrantFiled: November 15, 2017Date of Patent: November 12, 2019Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Sikun Hao
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Patent number: 10459294Abstract: The method for orientation of liquid crystals in a micro/nano region on the basis of laser direct writing and a system thereof includes a laser direct writing system employed to build a micro/nano structure. Liquid crystal molecules in a micro/nano structural region perform self-orientation; and the orientation of liquid crystals is generated by fine structures on side walls of polymer strips which form the micro/nano structure. The dimension of the micro/nano region varies from the micrometer magnitude to the nanometer magnitude exceeding the diffraction limit. The orientating direction can be adjusted and controlled in the micro/nano region, which is favorable for the miniaturization of the liquid crystal display devices and the orientation of the complicated three-dimensional liquid crystal structure.Type: GrantFiled: April 22, 2014Date of Patent: October 29, 2019Assignee: NANKAI UNIVERSITYInventors: Xinzheng Zhang, Jingjun Xu, Wei Li, Irena Drevensek-Olenik, Wei Cui, Bin Shi, Zhenhua Wang, Qiang Wu, Yongfa Kong
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Patent number: 10451938Abstract: A liquid crystal display panel is provided, and includes a color film substrate and an array substrate. The array substrate includes a device layer disposed on a glass substrate; and two ultraviolet protective layers disposed on the same side of the device layer. A first ultraviolet protective layer is close to the UV light source, and a second ultraviolet protective layer is far away from the UV light source. The refractive index of the first ultraviolet protective layer to UV light is greater than the refractive index of the second ultraviolet protective layer to UV light. One UV mask is reduced, to ensure that device characteristics remain unaffected.Type: GrantFiled: August 20, 2015Date of Patent: October 22, 2019Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Wei Cheng
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Patent number: 10451908Abstract: A problem to be solved is, in a thin type display panel with few bezel sections, improving strength in a curved part or adhesion between substrates. A display panel includes a first substrate having flexibility, a second substrate having flexibility, a sealant for adhering the first substrate and the second substrate, and an adhesion section for adhering the first substrate and the second substrate arranged on the inner side or outer side of the sealant, wherein a curved part is arranged on the inner side of the sealant, and the adhesion section is arranged in the curved part or in the vicinity of the curved part.Type: GrantFiled: October 25, 2017Date of Patent: October 22, 2019Assignee: Japan Display Inc.Inventors: Lu Jin, Yosuke Hyodo, Shinichiro Oka
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Patent number: 10444571Abstract: A liquid crystal display, including: a first substrate, and a second substrate facing the first substrate; a liquid crystal layer disposed between the first substrate and the second substrates; a first liquid crystal alignment layer disposed between the liquid crystal layer and the first substrate; and a second liquid crystal alignment layer disposed between the liquid crystal layer and the second substrate, wherein: at least one of the first liquid crystal alignment layer and the second liquid crystal alignment layer includes reactive mesogens; and the liquid crystal layer includes an antioxidant.Type: GrantFiled: August 15, 2016Date of Patent: October 15, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Joon Hyung Park, Kang Seob Jeong, Jong Ho Son
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Patent number: 10444581Abstract: Provided are a COA array substrate and a display device. The array substrate is provided with a base layer, a metal layer, and a color resist layer from bottom to top. The array substrate is further provided with contact holes passing through the color resist layer and in contact with the metal layer, and the contact holes are arranged so that the alignment film droplets can be distributed when the alignment film droplets drop right onto the contact holes. Air bubbles as in the prior art are thus avoided, thereby preventing a cell gap due to accumulation of an alignment film from becoming larger. Thus, a luminance difference is avoided and the quality of the product is improved without upgrading the existing equipment. The brightness uniformity of the display device is improved by using the array substrate.Type: GrantFiled: April 10, 2017Date of Patent: October 15, 2019Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Li Chai, Maolin Wang, Xing Lei, Chengcai Dong
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Patent number: 10423033Abstract: [Problem] The purpose of the present invention is to provide a method for developing a large anchoring energy by simple processes. [Solution] There is provided a method for manufacturing a liquid crystal alignment film, comprising: a process (I) of mixing a solvent with a photoresponsive polymer to prepare a photoresponsive polymer solution; a process (II) of coating the photoresponsive polymer solution on a substrate, followed by drying at 50 to 100° C. for 1 to 3 minutes and then drying at 120° C. to 180° C. for 5 to 75 minutes to form a coating film; and a process (III) of adjusting a temperature of the coating film while the coating film is irradiated with a light of 200 to 350 nm to 40° C. to 100° C.Type: GrantFiled: September 30, 2014Date of Patent: September 24, 2019Assignee: DIC CORPORATIONInventors: Fumiaki Kodera, Kunihiko Kotani, Kazunori Maruyama, Yutaka Kadomoto, Masanao Takashima, Hiroshi Hasebe, Yoshitaka Saito
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Patent number: 10414983Abstract: A curved liquid crystal display includes a first substrate, a second substrate overlapping the first substrate, a liquid crystal layer positioned between the first substrate and the second substrate and including a plurality of liquid crystal molecules, and a lower protrusion positioned between the first substrate and the liquid crystal layer, the lower protrusion being formed from at least one among a first compound represented by Chemical Formula 1, a polymer obtained from the first compound, and a polymer of the first compound and a cross-linker.Type: GrantFiled: November 20, 2017Date of Patent: September 17, 2019Assignee: Samsung Display Co., Ltd.Inventors: Ho Lim, Suk-Kung Chei, Min-Joo Han
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Patent number: 10409124Abstract: According to one embodiment, a liquid crystal display device, includes a first substrate including a scanning signal line, a video signal line, a first electrode, a color filter, a common line in contact with the first electrode along the video signal line, an antireflection layer located on the common line, a transparent layer located on the antireflection layer, and a second electrode, a liquid crystal layer located on the first substrate, and a second substrate located on the liquid crystal layer, the transparent layer having a thickness of 10 nm or more and 40 nm or less.Type: GrantFiled: September 27, 2016Date of Patent: September 10, 2019Assignee: Japan Display Inc.Inventors: Osamu Itou, Daisuke Sonoda, Masahiro Kosuge
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Patent number: 10402133Abstract: An image data processing controller includes circuitry to receive, from a server, output target image information, and command information including a description of process setting information in a first format used for generating and outputting an image, set description conversion setting information to one or more specific job receiving units, convert, when the description of process setting information in the first format is not interpretable by the image data processing controller, the description of process setting information in the first format into the description of process setting information in a second format interpretable by the image data processing controller by referencing the set description conversion setting information, and generate image drawing information to be used by an image generator based on the output target image information, and the command information including the description of process setting information in at least one of the first and second format.Type: GrantFiled: December 13, 2017Date of Patent: September 3, 2019Assignee: Ricoh Company, Ltd.Inventor: Shoh Ikeda
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Patent number: 10401684Abstract: A liquid crystal display device includes first and second substrates facing each other and including pixels, a pixel electrode disposed on the first substrate to be provided in each of the pixels, and a common electrode disposed on the second substrate, where the pixel electrode includes first unit electrodes, each of the first unit electrodes includes four domains, which are arranged in two rows in a first direction and two columns in a second direction, the four domains include first, second, third, and fourth domains of a corresponding first unit electrode, each of the first unit electrodes further includes a first slit, which is an opening defined along boundaries between the first through fourth domains, and the common electrode includes second slits, which are openings defined along outer sides of each of the first unit electrodes.Type: GrantFiled: April 25, 2016Date of Patent: September 3, 2019Assignee: SAMSUNG DISPLAY CO. LTD.Inventors: Ik Han Oh, Wan Namgung, Seung Kyu Lee, Ho Jun Lee, Youn Hak Jeong
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Patent number: 10385269Abstract: The subject is to show a liquid crystal composition in which the homeotropic alignment of liquid crystal molecules can be achieved by the action of a polymer, and a liquid crystal display device including this composition. The means concerns a nematic liquid crystal composition that has positive dielectric anisotropy and that includes a specific liquid crystal compound having a large positive dielectric anisotropy as a first component and a polar compound having a polymerizable group as a first additive, and the composition may include a specific liquid crystal compound having a high maximum temperature or a small viscosity as a second component, a specific liquid crystal compound having a positive dielectric anisotropy as a third component, a specific liquid crystal compound having negative dielectric anisotropy as a fourth component, and a polymerizable compound as a second additive, and concerns a liquid crystal display device including the composition.Type: GrantFiled: December 5, 2016Date of Patent: August 20, 2019Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventor: Masayuki Saito
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Patent number: 10379408Abstract: A curved display device includes a display substrate, an opposite substrate, and a liquid crystal layer interposed between the display substrate and the opposite substrate. The display substrate is curved along a first direction and includes a pixel electrode and a second alignment layer disposed on the pixel electrode. The opposite substrate is coupled to the display substrate to be curved along the first direction and includes a common electrode and a first alignment layer disposed on the common electrode. The first alignment layer comprises different material from the second alignment layer. The pixel electrode includes branch portions extending in a direction inclined with respect to the first direction when viewed in a plan view, and a pitch, which is defined by a sum of a width of each branch portion and a distance between the branch portions, is within a range from about 7.5 micrometers to about 8.5 micrometers.Type: GrantFiled: October 16, 2015Date of Patent: August 13, 2019Assignee: Samsung Display Co., Ltd.Inventors: Hyeokjin Lee, Ohjeong Kwon, Donghan Song, Sung-Jae Yun, Sujin Kim, Jinwon Kim, Kichul Shin, Dong-Chul Shin
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Patent number: 10338417Abstract: Provided is a set of techniques for measuring different properties or parameters of liquid crystal mixtures by applying a driving waveform and measuring the response current and/or the optical response. This may be done by using specific liquid crystal test cells. Also provided are the optimized test cell parameters that are used in the algorithms for calculating the properties.Type: GrantFiled: May 19, 2017Date of Patent: July 2, 2019Inventors: Henry Zhong Zou, Lianhua Ji
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Patent number: 10324341Abstract: A liquid crystal display includes a first substrate, a gate line disposed on an upper portion of the first substrate, a gate insulating layer disposed on the gate line, a semiconductor layer disposed on the gate insulating layer, a data line and a drain electrode disposed on the semiconductor layer, a passivation layer which covers the data line and the drain electrode and defines a contact hole which exposes a part of the drain electrode, a common electrode provided at an upper portion of the passivation layer and having a planar structure, a pixel electrode electrically connected to the drain electrode through the contact hole and including a plurality of pixel branch electrodes, and a second substrate corresponding to the first substrate, where an opening is defined in the common electrode at a position which corresponds to a middle region of the plurality of pixel branch electrodes.Type: GrantFiled: January 15, 2018Date of Patent: June 18, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Kyoung Ju Shin
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Patent number: 10324340Abstract: The present invention provides a pixel electrode. The pixel electrode comprises a peripheral frame electrode that is in an enclosed form and at least one pair of peripheral edges of the peripheral frame electrode are provided, on outer sides thereof, with a sawtooth-like configuration. The sawtooth-like configuration comprises tooth troughs having an extension direction that is substantially parallel to and consistent with an extension direction of branch electrodes of the pixel electrode corresponding thereto so that liquid crystal in an area corresponding to the peripheral frame electrode may incline in the direction of the branch electrodes in the same way as liquid crystal in an inside area of the peripheral frame electrode inclines in such a direction to prevent the occurrence of dark patterns in the area corresponding to the peripheral frame electrode.Type: GrantFiled: December 15, 2016Date of Patent: June 18, 2019Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Yanxi Ye
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Patent number: 10326098Abstract: An organic light-emitting diode is disclosed. In an embodiment, the diode includes a first light-emitting segment and at least a second light-emitting segment, wherein the first and second light-emitting segments include a common first electrode and a common second electrode, and are configured to emit radiation with different brightnesses, wherein the first electrode includes at least one separating line that does not completely cut through the first electrode, wherein an electric conductivity of the first electrode is reduced in a region of the separating line, wherein the separating line separates the first light-emitting segment from the second light-emitting segment, and wherein the second light-emitting segment has a lower brightness during operation than the first light-emitting segment.Type: GrantFiled: March 31, 2015Date of Patent: June 18, 2019Assignee: OSRAM OLED GMBHInventors: Karsten Diekmann, Andrew Ingle, Jörg Farrnbacher
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Patent number: 10317738Abstract: A display panel comprises an array substrate, an opposing substrate, a liquid crystal layer and a sealing member. An array substrate comprises a substrate, a switch array structure formed on the substrate, a retaining wall structure disposed on the peripheral region of the substrate and substantially surrounding the switch array structure, and a flow guiding structure disposed on an area surrounding the peripheral region between the switch array structure and the retaining wall structure and having a height different from a height of the retaining wall structure. The opposing substrate is disposed opposing to the array substrate, and the liquid crystal layer is interposed between the array substrate and the opposing substrate, and the sealing member is disposed on the array substrate corresponding to the location surrounding the periphery of the liquid crystal layer and seals the array substrate and the opposing substrate.Type: GrantFiled: December 21, 2017Date of Patent: June 11, 2019Assignee: HKC CORPORATION LIMITEDInventor: Beizhou Huang
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Patent number: 10317731Abstract: A display device includes a light modulation layer having predetermined refractive index anisotropy and including plural light modulation areas which differ in responsiveness to an electric field generated by electrodes, a polarization layer which is disposed on the front side of the light modulation layer, on which side external light enters, which shuts out light other than light having a predetermined polarization direction, a reflection layer disposed on the back side of the light modulation layer, and a phase retardation layer which is disposed between the polarization and light modulation layers, which creates a predetermined phase difference between incident light entering through the polarization layer and reflected light from the reflection layer, and which polarizes the reflected light in a direction different from the predetermined polarization direction. The light modulation layer transmits the reflected light when no electric field is generated and scatters it otherwise.Type: GrantFiled: October 23, 2015Date of Patent: June 11, 2019Assignee: Japan Display Inc.Inventors: Akira Sakaigawa, Kentaro Okuyama
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Patent number: 10321576Abstract: A curved display device includes a display panel including a terminal part configured to receive a driving signal, a driving circuit film including a base film and a driving chip on the base film, and a spacer disposed between the base film and the display panel. The driving chip is configured to generate the driving signal, the driving circuit film is configured to apply the driving signal to the display panel, and the driving circuit film is coupled to the terminal part and bent toward a lower surface of the display panel. The display panel and a surface of the spacer are curved along a first direction.Type: GrantFiled: May 16, 2017Date of Patent: June 11, 2019Assignee: Samsung Display Co., Ltd.Inventor: Hyeong-Cheol Ahn