Patents Examined by Michael H. Caley
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Patent number: 11003007Abstract: A light modulating device including: a light transmissive plate having a curved surface; a light modulating cell; and an optically transparent adhesive film which is disposed between the curved surface of the light transmissive plate and the light modulating cell and attaches one side of the light modulating cell to the curved surface of the light transmissive plate.Type: GrantFiled: March 21, 2017Date of Patent: May 11, 2021Assignee: DAI NIPPON PRINTING CO., LTD.Inventor: Yusuke Hagiwara
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Patent number: 11002998Abstract: A backlight system controls a viewing angle in a switchable privacy display system that achieves a strong private mode and enhanced brightness in the private and public modes as compared to conventional configurations. The backlight system includes a first backlight unit that emits light from a non-viewing side of the backlight system toward a viewing side of the backlight system; a second backlight unit located on a viewing side of the first backlight unit that emits light toward the viewing side of the backlight system; and a privacy optic that includes a liquid crystal material and is located on a non-viewing side of the second backlight unit and between the first backlight unit and the second backlight unit, wherein the privacy optic operates to transmit light from the first backlight unit in a limited viewing angle range.Type: GrantFiled: January 31, 2019Date of Patent: May 11, 2021Assignee: Sharp Kabushiki KaishaInventors: Hywel Hopkin, Nathan James Smith
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Patent number: 10996524Abstract: A display device with low power consumption and high display quality is provided. The display device includes first and second electrodes. One pixel includes a region in which the distance between the first electrode and the second electrode is constant and a region in which the distance varies; this structure allows the switching operation of liquid crystal to start in a predetermined region, thereby improving the stability of the operation of the liquid crystal. A pixel region is divided into two regions in which the liquid crystals are aligned in the two respective directions when switching is performed, whereby viewing angle characteristics are improved. Furthermore, the supply of a potential to a third electrode suppresses alignment disorder of the liquid crystal and improves the display quality.Type: GrantFiled: September 23, 2019Date of Patent: May 4, 2021Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yusuke Kubota, Daisuke Kubota
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Patent number: 10996530Abstract: A liquid crystal display device includes: transistors and pixel electrodes respectively provided in pixels; a common electrode facing the pixel electrodes; gate lines extending along the first direction and supplying gate signals to the transistors respectively; gate lead lines extending along the second direction and respectively connected to the gate lines at at least one of a plurality of intersections between the gate lead lines and the gate lines; and data lines extending along the second direction and supplying data signals to the transistors respectively. The pixels are made up of a plurality of types of pixels arranged periodically and repeatedly along the first direction, the data lines and the gate lead lines are formed in a same layer, and either of the data lines and the gate lead lines are alternatively provided for boundaries between two pixels adjacent in the first direction.Type: GrantFiled: January 30, 2020Date of Patent: May 4, 2021Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventor: Daisuke Kajita
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Patent number: 10996506Abstract: A polyhedron type display device includes: a plurality of liquid crystal panels connected to each other to constitute a polyhedral shape; a light source housing at a center of mass of the polyhedral shape; a light source unit accommodated in the light source housing, the light source unit emitting a light to supply the light to the plurality of liquid crystal panels; a light source supporting pillar connecting and supporting the light source housing and the plurality of liquid crystal panels; a structure supporting pedestal supporting the light source supporting pillar; a supporting panel supporting the plurality of liquid crystal panels; a radiating pillar connected to the light source unit and emitting a heat of the light source unit; and a protecting cover covering and protecting the radiating pillar.Type: GrantFiled: November 28, 2018Date of Patent: May 4, 2021Assignee: LG Display Co., Ltd.Inventors: Sun-Woong Kim, Dong-Seok Lee, Su-Jin Chang, Yeong-Eun Son
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Patent number: 10989956Abstract: A display device includes a light source, a light-directing element, a reflective display element, and a microlens array. The light-directing element is disposed on the transmission path of a lighting beam provided by the light source for projecting the lighting beam toward the first direction. The reflective display element includes a plurality of micro-image units, wherein each micro-image unit converts the lighting beam projected from the light-directing element into an sub-image beam and reflects the sub-image beam. The microlens array is disposed on the transmission path of the sub-image beams, wherein the light-directing element is located between the microlens array and the reflective display element. The microlens array includes a plurality of microlenses. Each sub-image beam pass throughs the light-directing element and is projected to an aperture by the corresponding microlens, and the sub-image beams pass through the aperture to form an image beam.Type: GrantFiled: February 1, 2019Date of Patent: April 27, 2021Assignee: Coretronic CorporationInventors: Yi-Chien Lo, Hsin-Hsiang Lo, Chuan-Chung Chang, Fu-Ming Chuang
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Patent number: 10983261Abstract: A panel device according to various embodiments of the disclosure includes a display panel including a plurality of pixels and a polarization panel including a first polarization pattern and a second polarization pattern and disposed on the display panel to allow a boundary line between the first polarization pattern and the second polarization pattern to divide each of the pixels into a first area corresponding to the first polarization pattern and a second area corresponding to the second polarization pattern.Type: GrantFiled: August 30, 2017Date of Patent: April 20, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kyung Hoon Cha, Sergey Shestak, Farid Mukhtarov
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Patent number: 10976596Abstract: An element substrate of an electro-optical device (substrate for an electro-optical device) includes a first lens and a second lens. The first lens is formed between a first substrate and a switching element, and the second lens is formed between the switching element and a pixel electrode. The second lens includes a second lens concave surface and a second lens-forming lens layer. The second lens concave surface is recessed in a surface of an interlayer insulating film. The second lens-forming lens layer is filled in the inside of the second lens concave surface. The interlayer insulating film includes a contact hole in a location not overlapping, in a plan view, with the second lens concave surface. The contact hole electrically couples the pixel electrode to the switching element.Type: GrantFiled: August 28, 2018Date of Patent: April 13, 2021Assignee: SEIKO EPSON CORPORATIONInventor: Satoshi Ito
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Patent number: 10976615Abstract: A liquid crystal display panel and a manufacturing method thereof are provided. The liquid crystal display panel, by an in-panel hole defining process, defines an installation hole. A position of an array substrate corresponding to the installation hole is opened, and an inner surface of a color filter substrate corresponding to the installation hole 340 is curved such that the color filter substrate has a lens structure to decrease total reflection between air and the glass substrate and increase outwardly directed light and light emitting efficiency.Type: GrantFiled: January 2, 2019Date of Patent: April 13, 2021Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.Inventor: Wei Cheng
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Patent number: 10976595Abstract: The present disclosure provides an optical substrate and a display device. The optical substrate includes: a light guide plate which includes a light entering surface and a light extraction surface adjacent to the light entering surface, and is configured to enable light entering the light guide plate through the light entering surface to be totally reflected toward an opposite surface of the light guide plate opposite to the light entering surface; and a plurality of light extraction structures which is arranged on the light extraction surface of the light guide plate for extracting the totally-reflected light in the light guide plate, and has areas of orthogonal projections of the plurality of light extraction structures on the light extraction surface of the light guide plate gradually increasing along a direction from the light entering surface to the opposite surface.Type: GrantFiled: September 25, 2019Date of Patent: April 13, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiandong Meng, Jifeng Tan, Wei Wang, Xianqin Meng, Fangzhou Wang, Qiuyu Ling, Xiaochuan Chen
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Patent number: 10962796Abstract: A beam deflector and a three-dimensional (3D) display device including the beam deflector are provided. The beam deflector includes a first deflector configured to controllably deflect incident light having a first polarization state in a first horizontal direction; a half-wave plate configured to rotate a polarization of light transmitted by the first deflector by 90°; and a second deflector configured to controllably deflect light transmitted by the half-wave plate having the first polarization state in a second horizontal direction that is different from the first horizontal direction.Type: GrantFiled: November 30, 2018Date of Patent: March 30, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hoon Song, Jungkwuen An, Young Kim, Kanghee Won
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Patent number: 10962839Abstract: The liquid crystal display panel includes in the following order from a viewing surface side to a back surface side: a first polarizer; a first ?/4 retardation layer; a first substrate; a second ?/4 retardation layer; a liquid crystal layer; a second substrate; and a second polarizer, the liquid crystal display panel being in a transverse electric field mode, the first substrate including a color filter layer in a display region, the second ?/4 retardation layer being a single layer covering the color filter layer and including a first retardation portion in an end region of the display region and a second retardation portion in a central region of the display region, the first retardation portion having a greater thickness than the second retardation portion, and the first retardation portion and the second retardation portion differing from each other in in-plane retardation by 10 nm or less.Type: GrantFiled: November 28, 2018Date of Patent: March 30, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Yuichi Kawahira, Kiyoshi Minoura, Akira Sakai, Takako Koide, Masahiro Hasegawa, Koji Murata
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Patent number: 10955603Abstract: Disclosed are systems and methods for imaging an object. For example, an optical sensor for imaging an input object, comprises: a sensor substrate comprising detector pixels; a scattering layer; a cover layer including a sensing surface, wherein the scattering layer is disposed between the sensor substrate and the cover layer; and, a light source. The optical sensor is configured to: illuminate the light source causing light beams to emanate from the light source to produce an effect of a point light source at the scattering layer; and acquire image data, from one or more detector pixels, of an input object in contact with the sensing surface, wherein the image data corresponds to light from the light source that is reflected at the sensing surface of the cover layer.Type: GrantFiled: October 16, 2018Date of Patent: March 23, 2021Assignee: Synaptics IncorporatedInventors: Bob Lee Mackey, Pascale El Kallassi
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Patent number: 10955715Abstract: A switchable privacy display apparatus comprises a polarised output spatial light modulator, and an additional polariser. A reflective polariser, switchable liquid crystal polar control retarder, passive polar control retarders and air gap are arranged between the display output polariser and additional polariser. The passive retarders are arranged to provide no phase difference to polarised light from the spatial light modulator for on-axis light; and simultaneously provide a non-zero phase difference for polarised light in off-axis directions. The polar control retarders are further arranged to achieve low reflectivity for light propagating through the air gap. A switchable privacy display that can be conveniently assembled at low cost can be provided with high contrast images for display users while maintaining high visual security level for off-axis snoopers.Type: GrantFiled: June 21, 2019Date of Patent: March 23, 2021Assignee: RealD Spark, LLCInventors: Graham J. Woodgate, Jonathan Harrold
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Patent number: 10948791Abstract: A liquid crystal device including a base member that is transmissive, a pixel electrode that is transmissive, a first insulator that is transmissive and that is disposed between the base member and the pixel electrode, and a second insulator that is transmissive and that surrounds and abuts the first insulator in a plan view from a thickness direction of the base member. The first insulator includes a first portion having a refractive index higher than a refractive index of the second insulator, and a second portion positioned between the base member and the first portion and having a refractive index lower than the refractive index of the first portion and higher than the refractive index of the second insulator.Type: GrantFiled: June 4, 2019Date of Patent: March 16, 2021Assignee: SEIKO EPSON CORPORATIONInventor: Yutaka Tsuchiya
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Patent number: 10942416Abstract: A method includes adjusting a focal length of an adaptive liquid lens that includes a layer of optical fluid on a substrate and in conjunction with adjusting the focal length of the adaptive liquid lens, adjusting a liquid crystal element coupled with the adaptive liquid lens. The method also includes transmitting light through the adaptive liquid lens and the liquid crystal element. Also disclosed is a hybrid lens including an adaptive liquid lens and a liquid crystal element coupled with the adaptive liquid lens. The liquid crystal element reduces optical artifacts caused by the adaptive liquid lens. The adaptive liquid lens includes a layer of optical fluid on a substrate, where a focal length of the adaptive liquid lens is adjustable.Type: GrantFiled: January 17, 2018Date of Patent: March 9, 2021Assignee: Facebook Technologies, LLCInventors: Lu Lu, Andrew John Ouderkirk, Scott Charles McEldowney
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Patent number: 10942388Abstract: A liquid crystal device includes a first substrate arranged on a light incident side and a second substrate that faces the first substrate through intermediation of a liquid crystal layer. A light shielding member is not provided in a display region of the first substrate. In a display region of the second substrate, a light shielding member in a lattice shape is provided between a substrate body and a pixel electrode. The second substrate includes a first lens member provided between the substrate body and the light shielding member, a second lens member provided between the light shielding member and the pixel electrode, and a third lens member provided between the second lens member and the pixel electrode. The liquid crystal device includes an optical compensation member on a light incident side of the third lens member.Type: GrantFiled: November 5, 2020Date of Patent: March 9, 2021Assignee: SEIKO EPSON CORPORATIONInventor: Akihide Haruyama
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Patent number: 10935845Abstract: A backlight module and a display device are disclosed, and the backlight module includes: a light source component, a wavelength selection film, and a first light emitting film laminated in sequence. The light source component is configured to emit light of a first wavelength range, the wavelength selection film transmits the light of the first wavelength range and reflect at least light of a second wavelength range, the second wavelength range does not coincide with the first wavelength range, and the first light emitting film is configured to excite and emit blue light under an illumination of the light of the first wavelength range.Type: GrantFiled: October 31, 2019Date of Patent: March 2, 2021Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zewen Gao, Yutao Hao, Shubai Zhang, Haiwei Sun, Ming Zhai, Pei Qin, Shuo Wang
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Patent number: 10928666Abstract: Provided is a display device with enhanced uniformity of brightness. The display device includes a display panel, and a backlight unit configured to supply light to the display panel, wherein the display panel includes a liquid crystal panel with first and second surfaces opposite to each other, a first polarizing plate arranged on the first surface of the liquid crystal panel, a second polarizing plate arranged on the second surface of the liquid crystal panel, a light absorbing layer arranged on the second polarizing plate to absorb a portion of the light supplied from the backlight unit, and a light absorbing material included in the light absorbing layer to absorb light of particular wavelengths.Type: GrantFiled: October 19, 2018Date of Patent: February 23, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Young Chol Lee, Wook-Jae Jeon, Il Yong Jung
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Patent number: 10928682Abstract: A display device and a method of manufacturing the same are disclosed. The display device comprises a thin film transistor on a substrate, a protective film on the thin film transistor, and an alignment film on the protective film. The protective film includes one or more protective films, and a protective film adjacent to the alignment film among the one or more protective films has a silicon content higher than a nitrogen content. Thus, it is possible to provide a display device capable of reducing image sticking or flicker.Type: GrantFiled: February 19, 2019Date of Patent: February 23, 2021Assignee: LG Display Co., Ltd.Inventors: HaJoong Lee, Kyungmin Yeo