Patents Examined by Dung T. Nguyen
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Patent number: 11644709Abstract: According to one embodiment, a display device includes a first substrate including a light-shielding layer and a conductive line having a first side surface and a second side surface on a side opposite to the first side surface, a second substrate opposed to the first substrate, a polymer dispersed liquid crystal layer held between the first substrate and the second substrate, and including a polymer and liquid crystal molecules, and a light-emitting element opposed to an end portion of at least one of the first substrate and the second substrate, wherein the first side surface is closer to the light-emitting element than the second side surface, and the light-shielding layer covers at least the first side surface of the conductive line.Type: GrantFiled: June 2, 2022Date of Patent: May 9, 2023Assignee: Japan Display Inc.Inventors: Tae Kurokawa, Kentaro Okuyama
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Patent number: 11630347Abstract: According to one embodiment, a display device includes a first transparent substrate having a first side surface extending over a first area, a second area and a third area, a second transparent substrate opposed to the first transparent substrate in the third area, a polymer dispersed liquid crystal layer, a first wiring board mounted with a first light-emitting element in the first area, a second wiring board mounted with a second light-emitting element in the second area, a first terminal connected to a power supply in the first area, a second terminal connected to the second wiring board in the second area, and a first conductive layer arranged on the first side surface and connected to the first terminal and the second terminal.Type: GrantFiled: July 7, 2021Date of Patent: April 18, 2023Assignee: Japan Display Inc.Inventors: Takayuki Imai, Masayuki Ikari
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Patent number: 11624956Abstract: The present disclosure provides a display panel and a display device including the same, in which heights of at least some of metal terminals in a flexible circuit board bonding pad increase in a direction away from a driving chip. Therefore, more space is reserved for connecting traces between the metal terminals and the driving chip, thereby avoiding occurrence of a display abnormality caused by short-circuiting between the connecting traces due to limitation of space for setting the connecting traces and avoiding the metal terminals being too close to a fan-out trace area in order to reduce impedance.Type: GrantFiled: May 28, 2019Date of Patent: April 11, 2023Assignee: Wuhan China Star Optoelectronics Technology Go., Ltd.Inventor: Yantao Lu
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Patent number: 11624954Abstract: A display device includes: a plurality of pixel electrodes arranged in the display region of a first substrate; a color filter provided on a second substrate opposing the first substrate and overlapping the pixel electrode; a planarization insulating layer provided on the color filter; a common electrode provided on the planarization insulating layer and having an opening; a spacer arranged between the pixel electrode and the common electrode; and a light-shielding layer provided between the first substrate and the pixel electrode and overlapping the spacer.Type: GrantFiled: September 20, 2021Date of Patent: April 11, 2023Assignee: Japan Display Inc.Inventor: Kenji Tanase
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Patent number: 11624957Abstract: An electro-optical panel including a display region includes a first terminal group including a plurality of first terminals arranged along a first side of a liquid crystal panel; and a second terminal group disposed between the first terminal group and the display region and including a plurality of second terminals arranged along the first side, in which the number of the plurality of second terminals is smaller than the number of the plurality of first terminals.Type: GrantFiled: August 17, 2021Date of Patent: April 11, 2023Assignee: SEIKO EPSON CORPORATIONInventor: Shinsuke Fujikawa
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Patent number: 11614663Abstract: A display device includes a first substrate, a second substrate facing the first substrate, and a sealing layer respectively including first, second and third side surfaces coplanar with each other; a first recess defined recessed from each of the first side surface, the second side surface and the third side surface; a first conductive pattern in the first recess; and a first driver facing each of the first side surface, the second side surface and the third side surface. At the first recess: the first conductive pattern is exposed to outside the first substrate, the second substrate and the sealing layer, and the first driver is electrically connected to the first conductive pattern.Type: GrantFiled: January 29, 2021Date of Patent: March 28, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jingwan Jang, Ho Sup Choi, Sungwoo Lee, Kyung-Hwa Lim
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Patent number: 11604389Abstract: A flexible display apparatus including a flexible display panel, a driving chip and a hot-melt protective layer is provided. The flexible display panel has a display area and a bonding area located outside the display area. The driving chip is disposed on the bonding area of the flexible display panel via at least one flexible circuit board. The hot-melt protective layer is disposed on the display area and a portion of the flexible circuit board. The hot-melt protective layer locates on a top surface of the flexible display panel.Type: GrantFiled: November 23, 2020Date of Patent: March 14, 2023Assignee: E Ink Holdings Inc.Inventor: Lih-Hsiung Chan
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Patent number: 11597880Abstract: A polymer film is provided, the polymer film comprises a liquid crystal polymer, comprising a soluble liquid crystal polymer and an insoluble liquid crystal polymer; and a polyimide polymer, accounting for 5 wt % or more of the polymer film. A method for manufacturing the polymer film is also provided, the method for manufacturing the polymer film comprises steps: providing a liquid crystal polymer powder, a particle size of the liquid crystal polymer powder is 0.1 um to 20 um; providing a liquid crystal polymer glue, a solid content of which is greater than 3 wt %; providing a polyamic acid glue; mixing the liquid crystal polymer powder, the liquid crystal polymer glue and the polyamic acid glue into a mixed solution, the mixed solution is made into a gel film, and the gel film is baked at a temperature of 300° C. to form a polymer film.Type: GrantFiled: May 25, 2022Date of Patent: March 7, 2023Assignee: TAIMIDE TECHNOLOGY INCORPORATIONInventors: Yi-Hsueh Ho, Meng-Ying Tsai
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Patent number: 11598995Abstract: A beam shaping device (1; 31) comprising first (3; 33) and second (4; 37) optically transparent substrates, a liquid crystal layer (2; 36) sandwiched there between, and first (5; 34) and second (6; 35) electrodes arranged on a side of the liquid crystal layer (2; 36) facing the first substrate (3; 34). The beam shaping device (1; 31) is controllable between beam-shaping states, each permitting passage of light through the beam-shaping device in a direction perpendicular thereto. The beam shaping device (1; 31) is configured in such a way that application of a voltage (V) across the first (5; 34) and second (6; 35) electrodes results in an electric field having a portion essentially parallel to the liquid crystal layer (2; 36) in a segment thereof between neighboring portions of the electrodes (5, 6; 34; 35) and extending substantially from the first substrate (3; 34) to the second (4; 35) substrate.Type: GrantFiled: October 11, 2019Date of Patent: March 7, 2023Assignee: Koninklijke Philips N.V.Inventors: Rifat Ata Mustafa Hikmet, Ties van Bommel, Thomas Caspar Kraan, Leon Hendrikus Christiaan Kusters, Siebe Tjerk DeZwart, Oscar Hendrikus Willemsen, Marcellinus Petrus Carolus Michael Krijn
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Patent number: 11586075Abstract: A method for aligning molecular orientations of liquid crystals and/or polymeric materials into spatially variant patterns uses metamasks. When non-polarized or circularly polarized light is transmitted through or reflected by the metamasks, spatially varied polarization direction and intensity patterns of light can be generated. By projecting the optical patterns of the metamasks onto substrates coated with photoalignment materials, spatially variant molecular orientations encoded in the polarization and intensity patterns are induced in the photoalignment materials, and transfer into the liquid crystals. Possible designs for the metamask use nanostructures of metallic materials (e.g., rectangular nanocuboids of metallic materials arrayed on a transparent substrate).Type: GrantFiled: February 7, 2018Date of Patent: February 21, 2023Assignee: KENT STATE UNIVERSITYInventors: Qi-Huo Wei, Hao Yu, Yubing Guo, Miao Jiang, Oleg D. Lavrentovich
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Patent number: 11579500Abstract: A display device includes a first liquid crystal panel configured to display an image to be seen by the observer, and a second liquid crystal panel laid on the first liquid crystal panel. The second liquid crystal panel includes a black matrix defining pixels, opaque gate lines disposed to be distant from one another in a first direction, and opaque data lines disposed to be distant from one another in a second direction different from the first direction. Lines of the black matrix disposed to be distant from one another in the first direction and the gate lines constitute dark lines disposed at a specified pitch in the first direction. Lines of the black matrix disposed to be distant from one another in the second direction and the data lines constitute dark lines disposed at a specified pitch in the second direction.Type: GrantFiled: December 23, 2020Date of Patent: February 14, 2023Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Takeshi Sasaki, Tsutomu Kadotani, Hidenori Ikeno
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Patent number: 11579496Abstract: A display device may include a display panel having a display area and a non-display area located in a first direction from the display area, a printed circuit board located in the first direction from the non-display area and configured to generate a signal, a driving film connected to the non-display area of the display panel and configured to drive the display panel in response to the signal, and a connecting film having a first end connected to the non-display area of the display panel and a second end connected to the printed circuit board. The connecting film electrically connects the printed circuit board and the driving film.Type: GrantFiled: January 7, 2019Date of Patent: February 14, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sunghyun Kim, Namsoo Kang, Soonkyeong Kwon, Yoonsup Kim, Sewon Min, Kihyun Sung, JunYong Ahn
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Patent number: 11573474Abstract: The present disclosure provides a display module and a display device. The display module includes: a substrate in which the substrate includes a first surface and a second surface that are arranged to face each other, and a plurality of side surfaces simultaneously connected to the first surface and the second surface; a display layer arranged on the first surface of the substrate; and a protection structure arranged at a connection position between two adjacent sides of the plurality of side surfaces of the substrate.Type: GrantFiled: December 16, 2019Date of Patent: February 7, 2023Assignees: Chongqing BOE Smart Electronics System Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Tianlong Li, Zili Ou, Xuangang Li, Qiangeng Cheng, Ganggui Shi, Chuanbo Zou
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Patent number: 11567376Abstract: the present application provides a display panel and manufacturing method thereof, the display panel includes: a substrate, which comprises a first substrate and a second substrate arranged oppositely; a black matrix layer, formed on the first substrate; an alignment layer, formed on the black matrix layer and the second substrate; a color filter layer, formed on the first substrate or the second substrate; a liquid crystal layer, formed between the first substrate and the second substrate; and an active switch, formed on the substrate; where at least one groove is formed on the black matrix layer, a shading layer is formed on the position of the substrate corresponding to the groove, and the area of the substrate in which the groove is orthogonally projected is fully covered by the area of the substrate in which the shading layer is orthogonally projected.Type: GrantFiled: December 12, 2017Date of Patent: January 31, 2023Assignee: HKC CORPORATION LIMITEDInventor: Bei Zhou Huang
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Patent number: 11561428Abstract: An optical device capable of varying transmittance, such that can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle.Type: GrantFiled: April 25, 2018Date of Patent: January 24, 2023Inventors: Byoung Kun Jeon, Moon Soo Park, Seong Min Lee, Ji Hoon Park
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Patent number: 11561427Abstract: A 3D liquid crystal display panel includes: a first substrate, a second substrate, and a first grating layer including grating openings arranged in an array for realizing 3D display; and a CF layer including a plurality of filter units arranged in an array, a black matrix disposed between adjacent filter units, and at least one light shielding strip disposed inside each of the filter units and dividing each of the filter units into a plurality of light transmitting regions. The 3D liquid crystal display panel is configured to apply voltages to the electrode layer to form a liquid crystal grating in the liquid crystal layer, and a collimated light incident to the liquid crystal layer passes through the liquid crystal grating and pass through the filter unit to form a monochromatic light, and then, is emitted out from the grating openings.Type: GrantFiled: April 29, 2019Date of Patent: January 24, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Zhongxiao Li
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Patent number: 11556023Abstract: An object includes an electro-optic display device provided with an optically active element, the optical properties thereof can be modified by applying an electric voltage or current between at least one electrode and one corresponding auxiliary electrode, between which the optically active element is disposed. The object further includes a middle part which delimits an opening closed by a crystal including a bottom surface beneath which the electro-optic display device is arranged. The crystal is provided with an opaque frame which is made remotely from the edges of the opening and which covers the contour of the electro-optic display device so as to conceal electrical connection elements. The electro-optic display device defines an active display area which is confined by the opaque frame, such that, when the electro-optic display device is activated and displaying information, a transparent area remains between the opaque frame and the edges of the opening.Type: GrantFiled: October 9, 2019Date of Patent: January 17, 2023Assignee: The Swatch Group Research and Development LtdInventors: Axel Schindler, Alain Hamm
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Patent number: 11556025Abstract: A display substrate including a scan driving circuit, a scan line, and an insulating pattern. The scan driving circuit includes a connection electrode disposed on a plurality of insulating layers, a plurality of signal lines, and a stage circuit connected to the signal lines and overlaps a non-display area. The scan line overlaps a display area and is connected to the scan driving circuit. The insulating pattern is disposed on the insulating layers, covers the connection electrode, and makes contact with a sealant.Type: GrantFiled: October 6, 2020Date of Patent: January 17, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jae-seung Kim, Kyongsub Kim, Tae Seop Kim, Taehoon Kim
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Patent number: 11543709Abstract: A display substrate including a base substrate having a display area and a non-display area around the display area, a plurality of gate lines disposed in the display area and extending in a first direction, a plurality of data lines disposed in the display area, insulated from the gate lines, and extending in a second direction crossing the first direction, and a plurality of data line extension portions extending from the data lines to the non-display area, in which each of the data line extension portions includes a first portion and a second portion disposed at a higher position than the first portion.Type: GrantFiled: September 3, 2020Date of Patent: January 3, 2023Assignee: Samsung Display Co., Ltd.Inventors: Seung-Kyu Lee, Hyunseong Kang, Suin Kim, Byeongjae Ahn, Gijung Lee, Byeonghoon Cho
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Patent number: 11543714Abstract: A display device includes: a first panel including a first image-forming surface for forming a first image visually recognized by a user and a plurality of first pixels; a second panel including a second image-forming surface for forming a second image visually recognized by the user and a plurality of second pixels; and a half-wavelength plate located between the first image-forming surface and the second image-forming surface. The half-wavelength plate includes an optical axis, is configured to be capable of transmitting incident light from either one panel of the first panel and the second panel, and of emitting light as emission light to the other panel. A polarization direction of the emission light from the half-wavelength plate is determined based on a polarization direction of the incident light on the half-wavelength plate and a direction of the optical axis.Type: GrantFiled: July 26, 2019Date of Patent: January 3, 2023Assignee: KYOCERA CorporationInventors: Kaoru Kusafuka, Mitsuhiro Murata