Patents Examined by Paisley L Wilson
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Patent number: 11973088Abstract: A display device and a method of manufacturing a display device are provided. An embodiment of a display device includes a substrate; a first conductive layer disposed on the substrate; a first insulating layer disposed on the first conductive layer; a second conductive layer connected to the first conductive layer through a first contact hole in the first insulating layer; a second insulating layer filling an inside of the first contact hole; and a third insulating layer disposed on the second conductive layer and the second insulating layer. The first insulating layer includes a first region that overlaps the second conductive layer and a second region that does not overlap the second conductive layer, and a top surface of the first region of the first insulating layer is positioned higher than a top surface of the second region of the first insulating layer.Type: GrantFiled: August 9, 2021Date of Patent: April 30, 2024Assignee: Samsung Display Co., Ltd.Inventors: Koichi Sugitani, Hye In Kim, Gwui Hyun Park, Chul Won Park, Pil Soon Hong
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Patent number: 11953789Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, a facing area, a liquid crystal layer, and a first spacer. The facing area includes a first area for displaying an image, a second area, and a frame-shaped frame area. The second substrate includes a light-shielding layer. The second area is an area having higher transparency than transparency of the first area. The liquid crystal layer is located in the second area, the frame area, and the first area. The first spacer is located in the second area and is provided on the first substrate or the second substrate.Type: GrantFiled: November 19, 2021Date of Patent: April 9, 2024Assignee: Japan Display Inc.Inventors: Tomokazu Ishikawa, Masaru Nakakomi
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Patent number: 11947224Abstract: A display panel is provided. The display panel includes a display region and a non-display region surrounding a periphery of the display region. The non-display region includes a multiple corner regions and multiple linear regions. The display panel further includes a first substrate, a second substrate, a liquid crystal layer, and a bezel assembly. The bezel assembly includes multiple support members and multiple sealant. At least one of the multiple support members is disposed in the corner region and the sealant is disposed in the linear region. The support member and the sealant bonds the first substrate and the second substrate. Two opposite ends of the sealant are respectively connected with one of the support members in two corner regions, and the liquid crystal layer is sealed between the first substrate and the second substrate. A display device having the display panel is also provided.Type: GrantFiled: June 14, 2023Date of Patent: April 2, 2024Assignee: HKC CORPORATION LIMITEDInventors: Jianying Zhang, Baohong Kang
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Patent number: 11940697Abstract: To improve viewing angle characteristics by varying voltage which is applied between liquid crystal elements. A liquid crystal display device in which one pixel is provided with three or more liquid crystal elements and the level of voltage which is applied is varied between the liquid crystal elements is varied. In order to vary the level of the voltage which is applied between the liquid crystal elements, an element which divides the applied voltage is provided. In order to vary the level of the applied voltage, a capacitor, a resistor, a transistor, or the like is used. Viewing angle characteristics can be improved by varying the level of the voltage which is applied between the liquid crystal elements.Type: GrantFiled: April 7, 2022Date of Patent: March 26, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
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Patent number: 11927782Abstract: Provided are a phase retardation device, a preparation method therefor, and a display apparatus. The phase retardation device includes: a linear polarization layer, a first alignment layer, a first liquid crystal layer and a second liquid crystal layer; the linear polarization layer is located on one side of a light source; the first alignment layer is located on a side of the linear polarization layer away from the light source; the first liquid crystal layer is located on a side of the first alignment layer away from the light source; the second liquid crystal layer is located on a side of the first liquid crystal layer away from the first alignment layer, the second liquid crystal layer comprises a first subpart adjacent to the first liquid crystal layer, a second subpart and a third subpart.Type: GrantFiled: May 23, 2023Date of Patent: March 12, 2024Assignee: Beijing Rayboch Technology Co., Ltd.Inventor: Wenqing Zhao
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Patent number: 11923316Abstract: A display device according to an embodiment includes: a display panel; a first pad portion disposed on a lateral side of the display panel; and an information code disposed on the lateral side of the display panel.Type: GrantFiled: May 13, 2020Date of Patent: March 5, 2024Assignee: Samsung Display Co., Ltd.Inventors: Sun Kwun Son, Na Hyeon Cha
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Patent number: 11921367Abstract: A switchable privacy display comprises a spatial light modulator with output polariser, a reflective polariser, a polar control liquid crystal retarder and an additional polariser. The electrodes of the polar control liquid crystal retarder are patterned with a mark. In wide angle and narrow angle operational modes, the electrodes of the liquid crystal retarder are driven such that the mark is not visible. In a mark display state, the electrodes are driven to provide visibility of the mark in reflected light to an off-axis observer.Type: GrantFiled: October 13, 2022Date of Patent: March 5, 2024Assignee: RealD Spark, LLCInventors: Jonathan Harrold, Graham J. Woodgate, Michael G. Robinson, Robert A. Ramsey, Ben Ihas
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Patent number: 11914235Abstract: Disclosed are a viewing angle adjustment film structure, a manufacturing method thereof, and a display device, including a base, an isotropic optical material layer, and a liquid crystal layer stacked in sequence. The isotropic optical material layer is provided with grooves, the liquid crystal layer fills the grooves, and light enters from the liquid crystal layer and then exits through the isotropic optical material layer. Director of liquid crystal molecules in the liquid crystal layer is changed according to an external applied voltage or a change of an electric field, so as to adjust a viewing angle of the light emitted from the isotropic optical material layer.Type: GrantFiled: August 4, 2020Date of Patent: February 27, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Hu Dou, Ziping Wu, Gang Yu
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Patent number: 11901370Abstract: It is an object of the present invention to form a pixel electrode and a metal film using one resist mask in manufacturing a stacked structure by forming the metal film over the pixel electrode. A conductive film to be a pixel electrode and a metal film are stacked. A resist pattern having a thick region and a region thinner than the thick region is formed over the metal film using an exposure mask having a semi light-transmitting portion. The pixel electrode, and the metal film formed over part of the pixel electrode to be in contact therewith are formed using the resist pattern. Accordingly, a pixel electrode and a metal film can be formed using one resist mask.Type: GrantFiled: March 28, 2022Date of Patent: February 13, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
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Patent number: 11899231Abstract: A display device includes a display panel, a polarizing plate disposed above the display panel, where the polarizing plate includes a linear polarizing layer and a retardation layer, a window member disposed above the polarizing plate, where the window includes a window and a protective layer disposed above the window, the protective layer has a retardation of about 100 nm or less or about 5000 nm or greater, an optical member disposed below the display panel, a support member disposed below the optical member, where a through-hole is defined through the support member, and an electronic module disposed to correspond to the through-hole.Type: GrantFiled: November 11, 2020Date of Patent: February 13, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jung-Hun Lee, Sungun Park, Sanghyeok Kim, Jungsun Kim, Jihwa Lee
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Patent number: 11892717Abstract: A switchable privacy display comprises a spatial light modulator with output polariser, a reflective polariser, a polar control liquid crystal retarder and an additional polariser. The electrodes of the polar control liquid crystal retarder are patterned with a mark. In wide angle and narrow angle operational modes, the electrodes of the liquid crystal retarder are driven such that the mark is not visible. In a mark display state, the electrodes are driven to provide visibility of the mark in reflected light to an off-axis observer.Type: GrantFiled: September 27, 2022Date of Patent: February 6, 2024Assignee: RealD Spark, LLCInventors: Jonathan Harrold, Graham J. Woodgate, Michael G. Robinson, Robert A. Ramsey, Ben Ihas
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Patent number: 11886080Abstract: A liquid crystal display is provided and includes first substrate; data and gate lines on first substrate; first electrode arranged over data and gate lines; insulating layer on first electrode; second electrode on insulating layer including connection electrode, wherein projection electrodes connected to connection electrode; second substrate; black matrix on second substrate including first black matrix with a constant width, a second black matrix; and liquid crystal layer sandwiched between first and second substrates, wherein width of first black matrix is wider than width of second black matrix, where second black matrix overlaps connection electrode so as to dispose connection electrode inside of second black matrix in plan view.Type: GrantFiled: March 28, 2022Date of Patent: January 30, 2024Assignee: Japan Display Inc.Inventor: Toshiharu Matsushima
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Patent number: 11886065Abstract: The present disclosure relates to a display panel, a temperature compensation method thereof and a display device. The display panel includes: a first substrate; a second substrate; a liquid crystal layer; a plurality of temperature sensors; a plurality of heaters; an electrical signal supply circuit; a processor; and a controller. The display device includes a driving circuit and the display panel. The driving circuit includes a source driving circuit, a gate driving circuit, and a timing controller.Type: GrantFiled: June 10, 2020Date of Patent: January 30, 2024Assignees: BEIHAI HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Kaijun Liu, Yu Lien Chou, Je-Hao Hsu
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Patent number: 11868012Abstract: The embodiments of the present disclosure provide a transparent display panel, including: a first substrate; a second substrate; and a liquid crystal layer; a light guide plate; a light source assembly; and a plurality of pixel units, wherein the plurality of pixel units includes a first pixel unit and a second pixel unit, a distance from a center of an orthographic projection of the first pixel unit on a light exit surface of the light guide plate to the light incident surface of the light guide plate is less than that of the second pixel unit, and an area of an orthographic projection of an effective modulation area of the liquid crystal layer in the first pixel unit on the light exit surface of the light guide plate is less than that in the second pixel unit.Type: GrantFiled: September 29, 2020Date of Patent: January 9, 2024Assignee: BOE Technology Group Co., Ltd.Inventors: Long Wang, Nanfang Jia, Yidan Peng, Jian Zhou
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Patent number: 11860378Abstract: A device (100) for speckle reduction, comprising an optical cell (110) and a controller (130). The optical cell (110) comprises a first and second cell wall (121, 122) spaced apart by a gap, and a liquid crystal composition (114) in the gap. The controller (130) is configured to cause fluid turbulence in the liquid crystal composition. The fluid turbulence in the liquid crystal composition (114) results in time varying spatially random scattering of light (102) transmitted through the liquid crystal composition (114). The liquid crystal composition (114) has a chiral nematic phase.Type: GrantFiled: August 16, 2017Date of Patent: January 2, 2024Assignee: OXFORD UNIVERSITY INNOVATION LIMITEDInventors: David J. Hansford, Julian A. J. Fells, Steve Elston, Stephen M. Morris
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Patent number: 11860488Abstract: A display panel and a backlight unit facing the display panel are provided. The display panel includes first and second polarizing plates, first and second substrates, and a liquid crystal layer. In a plan view, a second electrode formed on the first substrate extends in a first direction and includes a plurality of branch electrodes arranged in a second direction crossing the first direction. Any one of transmission axes of the first and second polarizing plates is parallel to an orientation direction of liquid crystal molecules when no voltage is applied to the second electrode. When a formation surface of the second electrode is as a base level and a normal direction of the base level is set to 0 degrees, light from the backlight unit has a peak of the intensity of light at an angle different from 0 degrees in a visible light region.Type: GrantFiled: March 17, 2022Date of Patent: January 2, 2024Assignee: Japan Display Inc.Inventor: Toshiharu Matsushima
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Patent number: 11860486Abstract: A digital display device including, from top to bottom, a first red filter, a transflective liquid crystal display cell, a second red filter and an emissive display cell, the transflective liquid crystal display cell displaying information using at least one first seven-segment digit and the emissive display cell providing a plurality of juxtaposed light points which are arranged so as to provide a display formed by at least one second seven-segment digit.Type: GrantFiled: August 6, 2020Date of Patent: January 2, 2024Assignee: The Swatch Group Research and Development LtdInventors: Nicolas Blanckaert, Jerome Thiault, Michel Sagardoyburu, Cecile Barron
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Patent number: 11835751Abstract: A display panel and a manufacturing method thereof, and a display device. The display panel includes a light guide plate, an array substrate, a liquid crystal layer between the light guide plate and the array substrate, a plurality of light-extracting gratings located on one side of a light exit surface of the light guide plate, and a transparent protection layer between a film layer where the light-extracting gratings are located and the light guide plate. The light guide plate includes a plurality of light-extracting port areas, and transparent areas besides the light-extracting port areas; each light-extracting port area is provided with one light-extracting grating; the protection layer is at least provided on the transparent areas, and the protection layer is configured to prevent the light guide plate in the transparent areas from being excessively etched to form a plurality of depressions.Type: GrantFiled: May 25, 2020Date of Patent: December 5, 2023Assignee: BOE Technology Group Co., Ltd.Inventors: Xiandong Meng, Jifeng Tan, Shuilang Dong, Wei Wang, Wenqu Liu, Wenqing Zhao, Qiuyu Ling, Xianqin Meng, Yishan Tian, Zhao Kang
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Patent number: 11830887Abstract: The present application discloses a array substrate, a manufacturing method of the array substrate, and a display panel, the manufacture procedure includes the following steps: sequentially forming a buffer layer and a photoresist layer on a glass substrate; placing the substrate into an activation agent for activation, and forming an activation liquid particle layer with a first preset pattern at a corresponding position where the activation agent is in contact with the photoresist layer, and forming an activation liquid particle layer with a second preset pattern at a corresponding position where the activation agent is in contact with the buffer layer; removing the photoresist layer and the activation liquid particle layer with the first preset pattern; and performing chemical plating to form a first metal layer at a position corresponding to the activation liquid particle layer with the second preset pattern in contact with the buffer layer.Type: GrantFiled: June 10, 2021Date of Patent: November 28, 2023Assignees: Chuzhou HKC Optoelectronics Technology Co., Ltd., HKC Corporation LimitedInventors: Yuming Xia, Lidan Ye
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Patent number: 11829016Abstract: A display device includes a display panel including a display surface on which an image is displayed, a film disposed above the display panel, a bottom chassis disposed under the display panel, a pole frame disposed under the bottom chassis, and a pole chassis. The pole frame includes a fixing portion and an elastic portion. The pole chassis is coupled with the elastic portion. The film includes a first portion disposed on the display panel and a second portion extending from the first portion and coupled to the pole chassis. The pole frame and the pole chassis cooperate to exert a force on the film, and thus the film may be extended to the bottom chassis from the display panel without being deformed.Type: GrantFiled: April 27, 2020Date of Patent: November 28, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Yongil Kim