Spacer Patents (Class 349/155)
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Patent number: 12166046Abstract: An electronic device is provided. The electronic device includes a first substrate, a second substrate, a first wire and an adhesive material. The first wire is disposed on the first substrate and has a first portion and a second portion. The adhesive material is disposed between the first wire and the second substrate. In a top view of the electronic device, the adhesive material at least partially overlaps the first wire. A first width W1 of the first portion is in a range from 20 ?m to 250 ?m. A second width W2 of the second portion is in a range from 20 ?m to 250 ?m.Type: GrantFiled: June 13, 2023Date of Patent: December 10, 2024Assignee: Innolux CorporationInventors: Luca Hung, Lavender Cheng
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Patent number: 12153311Abstract: The present disclosure relates to a counter substrate and display panel. The counter substrate includes a base substrate, PS pattern layer and alignment film. A surface of the PS pattern layer away from the base substrate is a support surface, and the PS pattern layer includes: main PSs in a display area and a peripheral barrier wall in a non-display area. The peripheral barrier wall has an elongated-strip shape and has a same length direction as a corresponding display area side, the support surface of the peripheral barrier wall is closer to the base substrate than that of the main PS, and a distance between the support surfaces of the peripheral barrier wall and main PS in a thickness direction is a first distance.Type: GrantFiled: October 23, 2023Date of Patent: November 26, 2024Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jian Ma, Jinliang Hu, Chengyong Zhan, Wenming Ren
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Patent number: 12153319Abstract: A display device includes a first transistor provided with an oxide semiconductor layer, a first gate wiring facing the oxide semiconductor layer and a first gate insulating layer between the oxide semiconductor layer and the first gate wiring, a first transparent conductive layer provided on at least a first insulating layer on the first transistor, the first transparent conductive layer having an area overlapping the gate wiring and being in contact with the oxide semiconductor layer in a first contact area not overlapping the gate wiring, a second transparent conductive layer provided above at least a second insulating layer on the first transparent conductive layer and being in contact with the first transparent conductive layer at a second contact area overlapping the gate wiring, and a third transparent conductive layer provided between the second transparent conductive layer and the second insulating layer.Type: GrantFiled: October 19, 2023Date of Patent: November 26, 2024Assignee: Japan Display Inc.Inventors: Yoshitaka Ozeki, Nobutaka Ozaki, Koshiro Moriguchi
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Patent number: 12140840Abstract: A light control sheet includes transparent electrode layers including first and second transparent electrode layers, a light control layer formed between the first and second transparent electrode layers, a first transparent support layer formed on the first transparent electrode layer on the opposite side of the light control layer, and a second transparent support layer formed on the second transparent electrode layer on the opposite side of the light control layer. The first transparent support layer has a support surface supporting the first transparent electrode layer, and the first transparent electrode layer includes a first electrode element and a second electrode element such that the first and second electrode elements are formed along the support surface and electrically insulated from each other by a groove extending along the support surface and having a depth passing through the first transparent electrode layer and not passing through the first transparent support layer.Type: GrantFiled: May 16, 2023Date of Patent: November 12, 2024Assignee: TOPPAN Inc.Inventors: Tatsuya Yamamoto, Takashi Oonishi
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Patent number: 12130528Abstract: The present application relates to a display panel and a display device. The display panel comprises a first substrate and a second substrate which are oppositely arranged, wherein the first substrate comprises a wiring area and a border glue in a border area, the wiring area comprises a common electrode wire, a gate driving circuit and a clock signal line which are sequentially arranged, conductive particles are arranged in the border glue, the second substrate comprises a common electrode layer, the border glue at least partially overlaps the wiring area, and the common electrode layer is at least partially hollowed out in the border area corresponding to the clock signal line.Type: GrantFiled: July 6, 2023Date of Patent: October 29, 2024Assignee: HKC CORPORATION LIMITEDInventors: Yuanjie Yang, Rongrong Li
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Patent number: 12127423Abstract: A flexible display apparatus includes a substrate, a thin film encapsulation layer, a plurality of spacers, and at least one layer of a blocking dam in the non-display region. The substrate includes a display region having a plurality of pixels and a non-display region adjacent to the display region. The thin film encapsulation layer is over the substrate. The spacers are between the substrate and the thin film encapsulation layer and are arranged around a pixel region. A different arrangement of spacers are in a center region and an edge region of the display region. The different arrangement may correspond to at least one of a size and a number of the spacers.Type: GrantFiled: July 21, 2021Date of Patent: October 22, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Sungun Park
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Patent number: 12124146Abstract: A display device including a substrate, a cholesteric liquid crystal layer, and a transparent electrode layer that are sequentially stacked is provided. The cholesteric liquid crystal layer includes cholesteric liquid crystal molecules and a plurality of transparent photoresist structures. Each of the transparent photoresist structures is a closed structure, and the cholesteric liquid crystal molecules are respectively accommodated in a plurality of patterned areas respectively surrounded by the transparent photoresist structures, so as to form a plurality of cholesteric liquid crystal patterns. The transparent electrode layer includes a plurality of sub-electrodes. The cholesteric liquid crystal patterns are respectively driven by the sub-electrodes. An orthogonal projection of each of the transparent photoresist structures on the substrate falls in an orthogonal projection of a corresponding sub-electrode of the sub-electrodes on the substrate.Type: GrantFiled: October 23, 2023Date of Patent: October 22, 2024Assignee: AUO CorporationInventors: Chun-Han Lee, Chien-Chuan Chen, Ju-Wen Chang, Hsin Chiang Chiang, Peng-Yu Chen
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Patent number: 12078875Abstract: A display device includes a lower substrate including first and second pixel areas and a light shielding area surrounding the first and second pixel areas, a light emitting structure disposed on the lower substrate, an upper substrate disposed on the light emitting structure, a first color conversion layer disposed in the first pixel area on a bottom surface of the upper substrate, a second color conversion layer disposed in the second pixel area on the bottom surface of the upper substrate, first to third light shielding patterns disposed in the light shielding area on the bottom surface of the upper substrate, a groove defined on a bottom surface of at least one selected from the first to third light shielding patterns, and a spacer disposed in the groove.Type: GrantFiled: August 9, 2021Date of Patent: September 3, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seon-Tae Yoon, Junghyun Kwon, Hyojoon Kim, Yunha Ryu, Kisoo Park, Hyeseung Lee
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Patent number: 12072591Abstract: A liquid crystal display device includes a thin film transistor (TFT) substrate and a counter substrate that are disposed opposite to each other with a liquid crystal layer in between. The TFT substrate has, an organic passivation film formed covering the TFT, and a pixel electrode and a common electrode formed on the organic passivation film, the organic passivation film having a through-hole to connect the pixel electrode and the TFT. A columnar spacer is formed on the counter substrate to define a distance between the TFT substrate and the counter substrate. A planarization film made of resin is formed in the through-hole. A recess is formed in the through-hole by a surface of the planarization film and a sidewall of the through-hole. A tip end of the columnar spacer exists in the recess.Type: GrantFiled: November 22, 2023Date of Patent: August 27, 2024Assignee: Japan Display Inc.Inventors: Tomokazu Ishikawa, Masaru Nakakomi
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Patent number: 12072585Abstract: This liquid crystal display device has a first substrate, a second substrate, a liquid crystal layer sandwiched between the first and second substrates, a seal, and a spacer. The seal includes: a first seal part having a linear shape in a first direction; a second seal part having a linear shape in a second direction; and a third seal part having a curved shape that smoothly connects the first seal part and the second seal part.Type: GrantFiled: June 30, 2021Date of Patent: August 27, 2024Assignee: TRIVALE TECHNOLOGIES, LLCInventor: Hiroshi Umeda
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Patent number: 11960164Abstract: Provided is a black matrix structure. The black matrix structure includes a plurality of black matrix strips that are intersected with each other, wherein a width the black matrix strip ranges from 2 to 2.5 microns, and a distance between any two adjacent black matrix strips in the plurality of black matrix strips ranges from 4 to 5 microns.Type: GrantFiled: June 8, 2021Date of Patent: April 16, 2024Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Qiang Chen, Yezhou Fang, Gaofei Xia, Xiahong Bai
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Patent number: 11940687Abstract: 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: March 21, 2023Date of Patent: March 26, 2024Assignee: Japan Display Inc.Inventors: Tae Kurokawa, Kentaro Okuyama
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Patent number: 11934070Abstract: Disclosed is a display panel including: first spacer on the array substrate, an orthographic projection of the first spacer on the array substrate being a first pattern extending along a first direction; a second spacer on the counter substrate, an orthographic projection of the second spacer on the array substrate being a second pattern extending along a second direction; at least two third spacers, orthographic projections of which on the array substrate being respectively on two sides of the first pattern along the first direction; at least two fourth spacers, orthographic projections of which on the array substrate being respectively on two sides of the second pattern along the second direction; one of the third spacer and the fourth spacer is on the array substrate, and the other is on the counter substrate.Type: GrantFiled: October 23, 2020Date of Patent: March 19, 2024Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Quan Gan, Ya Yu, Feng Qu, Yongcan Wang, Fengzhen Lv, Xianjie Shao, Rui Ma
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Patent number: 11930663Abstract: A display panel includes a first substrate, pixel structures, a first common pad, a second substrate, a second common electrode, a display medium and a conductive particle. The pixel structures are disposed on an active area of the first substrate. The first common pad is disposed on a peripheral area of the first substrate, and is electrically connected to first common electrodes of the pixel structures. The second common electrode is disposed on the second substrate. The conductive particle is disposed on the first common pad, and is electrically connected to the first common pad and the second common electrode. The conductive particle includes a core and a conductive film disposed on a surface of the core, where the conductive film has a main portion and raised portions, and a film thickness of each of the raised portions is greater than a film thickness of the main portion.Type: GrantFiled: April 9, 2021Date of Patent: March 12, 2024Assignee: Au Optronics CorporationInventors: Bo-Chen Chen, Yun-Ru Cheng, Ya-Ling Hsu, Chia-Hsuan Pai, Cheng-Wei Huang, Wei-Shan Chao
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Patent number: 11852929Abstract: The present disclosure relates to a dimming glass window assembly, and the dimming glass window assembly includes a window frame, and a dimming glass located in the window frame, where the dimming glass includes a first glass layer and a second glass layer which are opposite to each other and spaced apart, a dimming function layer and a sealant layer which are arranged between the first glass layer and the second glass layer, the dimming function layer is located in a sealed space bound by the sealant layer, the first glass layer and the second glass layer. The dimming glass further includes a control line unit connected to an external dimming controller, the control line unit includes: a flexible printed circuit, a first circuit board, a second circuit board and a signal line.Type: GrantFiled: June 11, 2021Date of Patent: December 26, 2023Assignees: Beijing BOE Sensor Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Zhong Hu, Chen Meng, Jiarong Liu, Yutao Tang, Yongbo Wang
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Patent number: 11846849Abstract: A curved display panel and a display device are disclosed. The curved display panel includes a sealant, a first substrate, a second substrate, and at least two sets of buffer members that are respectively disposed along both sides of the curved display panel in a bending direction and between the sealant and a display region. The buffer members are made of an elastic material, and include a first fixing member arranged between the sealant and the display region and connected to the first substrate, and a second fixing member arranged between the first fixing member and the sealant and connected to the second substrate. Before the curved display panel is bent, one side of the first fixing member abuts one side of the second fixing member. After the curved display panel is bent, the first and the second fixing member are pressed against each other.Type: GrantFiled: December 5, 2022Date of Patent: December 19, 2023Assignees: MIANYANG HKC OPTOELECTRONICS TECHNOLOGY CO., LTD, HKC CORPORATION LIMITEDInventors: Hui Li, Rongrong Li
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Patent number: 11835826Abstract: The present disclosure relates to a counter substrate and display panel. The counter substrate includes a base substrate, PS pattern layer and alignment film. A surface of the PS pattern layer away from the base substrate is a support surface, and the PS pattern layer includes: main PSs in a display area and a peripheral barrier wall in a non-display area. The peripheral barrier wall has an elongated-strip shape and has a same length direction as a corresponding display area side, the support surface of the peripheral barrier wall is closer to the base substrate than that of the main PS, and a distance between the support surfaces of the peripheral barrier wall and main PS in a thickness direction is a first distance. A ratio between a width of the support surface of the peripheral barrier wall and the first distance is less than 100.Type: GrantFiled: September 29, 2022Date of Patent: December 5, 2023Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jian Ma, Jinliang Hu, Chengyong Zhan, Wenming Ren
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Patent number: 11837607Abstract: A display device includes a liquid crystal element, a transistor, a scan line, and a signal line. The liquid crystal element includes a pixel electrode, a liquid crystal layer, and a common electrode. The scan line and the signal line are each electrically connected to the transistor. The scan line and the signal line each include a metal layer. The transistor is electrically connected to the pixel electrode. A semiconductor layer of the transistor includes a stack of a first metal oxide layer and a second metal oxide layer. The first metal oxide layer includes a region with lower crystallinity than the second metal oxide layer. The transistor includes a first region connected to the pixel electrode. The pixel electrode, the common electrode, and the first region are each configured to transmit visible light. Visible light passes through the first region and the liquid crystal element and exits from the display device.Type: GrantFiled: September 14, 2022Date of Patent: December 5, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Kenichi Okazaki, Daisuke Kurosaki, Yasutaka Nakazawa, Kazunori Watanabe, Koji Kusunoki
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Patent number: 11733567Abstract: A light modulation device is disclosed herein. The light modulation device can properly maintain a cell gap by controlling the shape and arrangement of spacers and the like, and is applicable for various applications by effectively controlling omnidirectional light leakage in a black mode, while having excellent optical properties, including transmittance-variable characteristics and haze characteristics, and the like.Type: GrantFiled: October 8, 2020Date of Patent: August 22, 2023Inventors: Min Jun Gim, Jung Sun You, Cheol Ock Song, Dong Hyun Oh, Nam Gyu Kim, Jin Hong Kim, Jung Woon Kim
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Patent number: 11676738Abstract: A liquid crystal device includes: an element substrate; a counter substrate disposed opposite to the element substrate; a sealing material disposed between the element substrate and the counter substrate; and a liquid crystal layer disposed on an inner side of the sealing material and containing liquid crystal. The element substrate includes an alignment film configured to align the liquid crystal and an ion-adsorbing first adsorption film disposed in contact with the sealing material. The alignment film includes a first vapor-deposited film and a second vapor-deposited film disposed between the first vapor-deposited film and the liquid crystal layer. The second vapor-deposited film and the first adsorption film include a column of which a long axis direction intersects a thickness direction of the liquid crystal layer. A thickness of the first adsorption film is thicker than a thickness of the second vapor-deposited film.Type: GrantFiled: February 23, 2022Date of Patent: June 13, 2023Assignee: SEIKO EPSON CORPORATIONInventor: Tomoya Ishikawa
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Patent number: 11662633Abstract: A display panel includes a first substrate, a second substrate and a black matrix disposed between the first substrate and the second substrate. The first substrate includes a plurality of pixel areas arranged in a matrix. The first substrate further includes a plurality of scan lines extending along a first direction. The second substrate is disposed opposite to the first substrate. The black matrix includes a plurality of first parts and a second part. One of the plurality of first parts extends along the first direction and corresponds to one of the plurality of the scan lines. The second part is connected to the one of the plurality of first parts and extends along a second direction. A thickness of the second part is varied along the second direction.Type: GrantFiled: June 9, 2022Date of Patent: May 30, 2023Assignee: INNOLUX CORPORATIONInventors: Li-Ming Lin, Chih-Ming Liang
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Patent number: 11650097Abstract: A color filter array may include a plurality of color filters arranged two-dimensionally and configured to allow light of different wavelengths to pass therethrough. Each of the plurality of color filters includes at least one Mie resonance particle and a transparent dielectric surrounding the at least one Mie resonance particle.Type: GrantFiled: August 11, 2020Date of Patent: May 16, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sunghyun Nam, Sookyoung Roh, Seokho Yun
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Patent number: 11604373Abstract: The invention relates to an electrically controllable viewing angle switch device and a display apparatus. The switch device includes a first substrate, a second substrate, a liquid crystal layer, spacers, a first alignment film, a second alignment film, a first polarizer, and a second polarizer and has a light transmission region. The second substrate is disposed opposite to the first substrate. The liquid crystal layer and the spacers are located between the first substrate and the second substrate in the light transmission region. The spacers are fixed on the first or second substrate. The first polarizer and the second polarizer are disposed on opposite sides of the liquid crystal layer. The axial directions of the transmission axis of the first polarizer and the transmission axis of the second polarizer are parallel or perpendicular to the alignment direction of the first alignment film and the second alignment film.Type: GrantFiled: April 21, 2021Date of Patent: March 14, 2023Assignee: Coretronic CorporationInventors: Yang-Ching Lin, Chung-Yang Fang, Ping-Yen Chen
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Patent number: 11579501Abstract: The present invention provides a LCOS structure and a method for fabricating same. The LCOS structure includes: a silicon substrate; a liquid crystal layer and a transparent conductive layer both disposed above the silicon substrate. In the silicon substrate, there are formed a conductive pad, an opening where the conductive pad is exposed, and at least one metal layer. The opening is located peripherally around the liquid crystal layer, there is no portion of the metal layer located under the conductive pad. The conductive backing is located at the same vertical level as one metal layer in the at least one metal layer and electrically connected thereto, a conductive adhesive fills in the opening and a gap between the silicon substrate and the transparent conductive layer. The transparent conductive layer is electrically connected to the conductive pad by conductive metal particles in the conductive adhesive.Type: GrantFiled: August 5, 2021Date of Patent: February 14, 2023Assignee: OMNIVISION SEMICONDUCTOR (SHANGHAI) CO., LTD.Inventors: Pei-Wen Ko, Chun-Sheng Fan
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Patent number: 11523522Abstract: A display device includes a cover window including a curved portion, and a panel member laminated on the cover window. A method of manufacturing a display device includes mounting a cover window including a curved portion on a first jig including a curved portion, mounting a panel member on a second jig that conforms to a surface of the first jig, and laminating the cover window to the panel member by moving a first one of the first jig or the second jig to a first other one of the first jig or the second jig. An apparatus for manufacturing a display device includes a first jig including a mount surface that is partially curved to conform to a surface of a cover window, a second jig including a surface conforming to the mount surface and configured to contact a panel member, and a driving unit.Type: GrantFiled: June 28, 2013Date of Patent: December 6, 2022Assignee: Samsung Display Co., Ltd.Inventors: Kyung-Su Lee, Kwan-Young Han, Jong-Hwan Kim, Yong-Youl Cho, Young-Sik Kim, Yang-Han Son, Dae-Hyun Hwang
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Patent number: 11521566Abstract: The present disclosure provides a display panel and an electronic device. In the display panel, a contact area between a support pillar and a bottom layer is increased, without changing a size of a single sub-pixel, thereby alleviating a technical problem that the support pillar easily peels off in an existing 8K ultra-high-resolution electronic device. Moreover, by adjusting voltage drop values of clock input transistors in different GOA units, the voltage drop value between each of the GOA units and clock driving chips is approximately the same.Type: GrantFiled: April 30, 2020Date of Patent: December 6, 2022Inventors: Huihua Liao, Juncheng Xiao, Bin Zhao, Xin Zhang, Jun Zhao
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Patent number: 11513403Abstract: A liquid crystal panel (display panel) 11 includes a display area AA configured to display images, a non-display area NAA outside the display area AA, a light blocking layer (a light blocking portion) 11i disposed at least in the non-display area NAA and configured to block light, a signal line connection line (a narrow line portion) 29 where lines are arranged at intervals in the non-display area NAA, and a common electrode connection line portion (a wide line portion) 30 disposed in the non-display area and having a line width greater than that of the signal line connection line 29 and including empty portions 34.Type: GrantFiled: April 23, 2021Date of Patent: November 29, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Ryosuke Yuminami, Masakazu Miyamoto, Masahiro Yoshida, Masayuki Takashima, Toshiaki Fujihara
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Patent number: 11500249Abstract: The present disclosure relates to a counter substrate and display panel. The counter substrate includes a base substrate, PS pattern layer and alignment film. A surface of the PS pattern layer away from the base substrate is a support surface, and the PS pattern layer includes: main PSs in a display area and a peripheral barrier wall in a non-display area. The peripheral barrier wall has an elongated-strip shape and has a same length direction as a corresponding display area side, the support surface of the peripheral barrier wall is closer to the base substrate than that of the main PS, and a distance between the support surfaces of the peripheral barrier wall and main PS in a thickness direction is a first distance. A ratio between a width of the support surface of the peripheral barrier wall and the first distance is less than 100.Type: GrantFiled: June 25, 2021Date of Patent: November 15, 2022Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.Inventors: Jian Ma, Jinliang Hu, Chengyong Zhan, Wenming Ren
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Patent number: 11493807Abstract: A substrate on which a specific type spacer is formed, a substrate comprising an alignment film formed on the spacer, and an optical device using such a substrate are disclosed herein. By controlling the shape of the spacer formed on the substrate, even when the alignment film is formed on the top of the spacer and the orientation treatment is performed, the uniform orientation treatment can be performed without any influence by the step or the like of the spacer, whereby a substrate or the like capable of providing a device having excellent optical performance can be provided.Type: GrantFiled: December 20, 2019Date of Patent: November 8, 2022Inventors: Han Min Seo, Ji Young Hwang, Cheol Ock Song, Nam Seok Bae, Seung Heon Lee, Dong Hyun Oh, Jung Sun You
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Patent number: 11493787Abstract: A projection type transparent display includes a polarization modulator and a reflective layer. The polarization modulator is stacked in sequence by a linear polarizer, a liquid crystal layer and a phase retarder. The reflective layer is stacked on the phase retarder. A projection light is incident on the linear polarizer to form a linearly polarized light. The liquid crystal layer changes a polarization direction of the linearly polarized light. Two kinds of linearly polarized projection lights with polarization directions orthogonal to each other are respectively formed and pass through the phase retarder to respectively form two kinds of circularly polarized projection lights with opposite rotation directions. A background light is incident on the reflective layer.Type: GrantFiled: June 17, 2021Date of Patent: November 8, 2022Assignee: NATIONAL SUN YAT-SEN UNIVERSITYInventors: Tsung-Hsien Lin, Heng-Yi Tseng, Cheng-Chang Li, Li-Min Chang, Kuan-Wu Lin
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Patent number: 11487146Abstract: This disclosure provides a display panel, a manufacturing method of the display panel, and a display device. The display panel includes a first substrate, a second substrate opposite to the first substrate, and a color resist layer disposed on the first substrate. The color resist layer includes a plurality of color resistances, the color resistances are divided into first color resistances, second color resistances, third color resistances, and connecting color resistances. First supporting structures and second supporting structures are disposed on the first substrate; the supporting structures includes at least one. A height of the first supporting structure is greater than a height of the second supporting structure.Type: GrantFiled: November 30, 2018Date of Patent: November 1, 2022Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Junhong Cao
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Patent number: 11487167Abstract: A method for fabricating a liquid crystal phase modulation device is provided. The method includes detecting thicknesses of a plurality of portions of a reference liquid crystal layer of a reference liquid crystal phase modulation sample; determining a distribution according to the thicknesses of the portions of the reference liquid crystal layer; forming a plurality of spacers over a first substrate in the determined distribution; and combining the first substrate with a second substrate and a liquid crystal layer to form the liquid crystal phase modulation device.Type: GrantFiled: December 21, 2020Date of Patent: November 1, 2022Assignee: Liqxtal Technology Inc.Inventors: Chih-Chan Lin, Yu-Ching Chen
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Patent number: 11480830Abstract: A display panel and a display device are provided. In the display panel, a plurality of main spacers and a plurality of auxiliary spacers are disposed on a side of a first substrate close to a second substrate, the second substrate further includes a plurality of first lug bosses and a plurality of second lug bosses; an orthographic projection of the main spacers on the second substrate is at least partially overlapped with an orthographic projection of a corresponding first lug boss on the second substrate; an orthographic projection of the auxiliary spacers on the second substrate is away from an orthographic projection of a corresponding second lug boss on the second substrate by a preset distance; and the distance between each of the auxiliary spacers and the corresponding second lug boss is less than a height of the first lug bosses.Type: GrantFiled: September 6, 2018Date of Patent: October 25, 2022Assignee: Beijing BOE Technology Development Co., Ltd.Inventors: Xue Dong, Liwei Liu, Xinxing Wang, Yun Sik Im, Hyun Sic Choi, Jaegeon You, Yinglong Huang, Heecheol Kim
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Patent number: 11482588Abstract: A display device includes a first substrate having a display area and a non-display area. The first substrate includes a conductive line in the non-display area. A second substrate faces the first substrate and is spaced apart from the first substrate. A conductive layer is disposed between the first substrate and the second substrate. The conductive layer is spaced apart from the first substrate in a direction perpendicular to a top surface of the first substrate. The conductive layer at least partially overlaps the conductive line and is electrically floated.Type: GrantFiled: June 1, 2020Date of Patent: October 25, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Sangjin Jeon
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Patent number: 11454840Abstract: Provided are a display panel, a preparation method thereof, and a display apparatus. The display panel includes an array substrate and a color filter substrate aligned and combined into a cell. The color filter substrate includes a first base substrate and a plurality of color resist blocks arranged at intervals on the first base substrate. The array substrate includes a second base substrate and a plurality of pixel electrodes arranged at intervals on the second base substrate. The pixel electrodes are in one-to-one correspondence with the color resist blocks. The display panel includes a bending area and a non-bending area located at least on one side of the bending area. A density of the pixel electrodes in the bending area is less than that in the non-bending area, and a density of the color resist blocks in the bending area is less than that in the non-bending area.Type: GrantFiled: April 7, 2021Date of Patent: September 27, 2022Assignee: Beijing BOE Technology Development Co., Ltd.Inventors: Shulei Li, Menghua Zhao, Changhan Hsieh, Zhao Kang
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Patent number: 11448934Abstract: An optical device is provided in the present application. The present application provides an optical device capable of varying transmittance, and such optical device 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: March 27, 2019Date of Patent: September 20, 2022Inventors: Nam Hun Kim, Seong Min Lee, Byoung Kun Jeon, Su Young Ryu, Jung Woon Kim, Young Shin Lee
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Patent number: 11442303Abstract: Embodiments of the present disclosure provide a display panel and a display device. The display panel includes: a first substrate; at least one underlaying structure, arranged on the first substrate and in a non-display region of at least one side of a display region of the display panel; and at least one supporting structure, arranged on one side, facing away from the first substrate, of the at least one underlaying structure, where an orthographic projection of the supporting structure on the first substrate is within a range of an orthographic projection of the underlaying structure on the first substrate.Type: GrantFiled: August 20, 2019Date of Patent: September 13, 2022Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Yifu Chen, Seungmin Lee, Yanping Liao, Lei Guo, Yingying Qu, Zhe Li, Liangliang Jiang, Lifeng Lin, Lan Xin, Zhihua Sun
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Patent number: 11428969Abstract: An optical display includes an optical display element including a second substrate, a first substrate facing the second substrate, a dummy region and a metal interconnection layer thereon. A first polarizing plate on an upper surface of the optical display element has a light shielding layer therein including printed patterns separated from each other. A first printed layer includes a first point at an interface between the display and non-display regions and a second point at a vertex closest to the first point. A second printed layer includes a third point at the interface and a fourth point at a vertex closes to the third point. The light shielding layer satisfies H?P/2, where H is a minimum value among a distance from the interface to the second point and a distance from the interface to the fourth point, and P is a width of the dummy region.Type: GrantFiled: November 29, 2018Date of Patent: August 30, 2022Assignee: Samsung SDI Co., Ltd.Inventors: Jin Woo Kim, Yoo Jin Kim, Dong Yoon Shin, Bae Wook Lee, Ji Hyun Hwang
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Patent number: 11422413Abstract: Manufacturing equipment of low-temperature formed liquid crystal alignment film and panel manufacturing process thereof are provided. The manufacturing equipment includes an engraving member, a light curing agent coating member, and a light curing device. In the panel manufacturing process, the engraving member is applied for engraving an alignment pattern on a surface of a prepared substrate. Next, the light curing agent coating member coats the light curing agent on the surface of the substrate having the alignment pattern thereon. Then, the light curing device is applied for light curing the light curing agent, so as to form a crystal alignment film having a texture of the alignment pattern. Finally, liquid crystal is injected between two substrates having the liquid crystal alignment film and encapsulating the structure to form a panel.Type: GrantFiled: October 15, 2020Date of Patent: August 23, 2022Assignee: MAT.W GLOBAL CO., LTD.Inventors: Tzu-Lan Hsu, Yu-Ting Pen
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Patent number: 11409167Abstract: According to one embodiment, a liquid crystal display comprising a first substrate, a second substrate opposed the first substrate, a liquid crystal layer between the first substrate and the second substrate, a light-shielding layer including a first light-shield formed along a first direction and a second light-shield formed along a second direction and crossing the first light-shield, and a spacer which maintains a gap between the first substrate and the second substrate, the spacer overlapping a crossing region where the first light-shield and the second light-shield cross each other and including an exposed region outside the light-shielding layer in a planar view.Type: GrantFiled: May 7, 2021Date of Patent: August 9, 2022Assignee: Japan Display Inc.Inventor: Masaya Tamaki
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Patent number: 11404489Abstract: A display substrate, a manufacturing method thereof and a display device are provided. The display substrate includes: a driver circuit layer, a planarization layer and light-emitting units, each light-emitting unit includes an anode, a cathode and an organic light emitting layer located between the anode and the cathode, and the anode is connected to a driving electrode of the driver circuit layer through a via hole in the planarization layer. The organic light emitting layer includes: at least one pixel repetition unit, each pixel repetition unit includes multiple pixels, and each pixel includes multiple sub-pixels with different colors. Via holes in the planarization layer that correspond to same colored sub-pixels of at least two pixels in the same pixel repetition unit have different via hole positions, the via hole position being a relative position of a projection of a via hole in the planarization layer within corresponding sub-pixel.Type: GrantFiled: August 20, 2020Date of Patent: August 2, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhao Li, Hong Zhu
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Patent number: 11381004Abstract: An apparatus for exchanging liquid crystal (LC) between two areas of an antenna array in an antenna and method for using the same are disclosed. In one embodiment, the antenna comprises an antenna element array formed using portions of first and second substrates with a liquid crystal (LC) therebetween, and a structure between the first and second substrates and in an area outside of, and at an outer periphery of, the antenna element array to collect LC from an area between the first and second substrates forming the RF antenna elements due to LC expansion and to provide LC to the area between the first and second substrates forming the RF antenna elements due to LC contraction, the structure having a plurality of support spacers between the first and second substrates.Type: GrantFiled: July 27, 2020Date of Patent: July 5, 2022Assignee: KYMETA CORPORATIONInventors: Steven Howard Linn, Felix Chen
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Patent number: 11359431Abstract: A method for manufacturing a pillar supply sheet is a method for manufacturing a pillar supply sheet including a plurality of pillars, a carrier sheet, and an adhesion layer between each of the pillars and the carrier sheet, the method including a pillar forming step. The pillar forming step is a step of forming the plurality of pillars by subjecting the base member to an etching process or a laser irradiation process and removing an unnecessary portion from the base member after the process.Type: GrantFiled: February 15, 2018Date of Patent: June 14, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroyuki Abe, Eiichi Uriu, Kazuya Hasegawa, Masataka Nonaka, Haruhiko Ishikawa, Tasuku Ishibashi, Takeshi Shimizu
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Patent number: 11353755Abstract: A display device according to an exemplary embodiment of the present inventive concept includes: a first substrate including a display area and a non-display area; a second substrate overlapping the first substrate; a sealant disposed between the first substrate and the second substrate; and a stacked body disposed between the first substrate and the second substrate, disposed on an outermost edge of the non-display area, and disposed spaced apart from the sealant, wherein the stacked body includes a column spacer and a color filter stacked body in which at least two color filters are stacked.Type: GrantFiled: March 12, 2020Date of Patent: June 7, 2022Inventors: Sae Ron Park, Jin Suek Kim, Sang Woo Kang, Eung Gyu Lee
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Patent number: 11327369Abstract: An electro-optical device includes a first substrate including a layered body including a plurality of insulating layers, and a pixel electrode disposed at the layered body, a second substrate including a common electrode, an electro-optical layer disposed between the pixel electrode and the common electrode, the electro-optical layer having optical characteristics varying according to an electric field, a spacer coupled to the first substrate, the spacer defining a distance between the pixel electrode and the common electrode, in which the spacer has a first portion overlapping with the pixel electrode when viewed in a thickness direction of the first substrate, and a second portion not overlapping with the pixel electrode when viewed in the thickness direction.Type: GrantFiled: November 19, 2020Date of Patent: May 10, 2022Assignee: SEIKO EPSON CORPORATIONInventor: Satoshi Ito
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Patent number: 11320867Abstract: A glass protective film assembly for covering a curved surface which protects a display area of a portable device, including a flat display area and a curved display area. The glass protective film assembly for covering the curved surface includes a glass film member having a flat area portion corresponding to the flat display area and a curved area portion corresponding to the curved display area and an adhesive layer adhering the entire area of the lower surface of the glass film member to the display area of the portable display.Type: GrantFiled: April 11, 2019Date of Patent: May 3, 2022Assignee: Whitestone Co., Ltd.Inventors: Chanhyun Park, In Su Yoon, Jae Yong Jeong
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Patent number: 11287708Abstract: The present invention provides a liquid crystal display (LCD) panel comprising a color film substrate, a thin film transistor substrate, and a photo spacer. Wherein the photo spacer is disposed on the color film substrate or/and the thin film transistor substrate. The color film substrate or/and the thin film transistor substrate are provided with a recess. At least a portion of the photo spacer disposed on one of the color filter substrate and the thin film transistor substrate and the recess disposed on the other of the color filter substrate and the thin film transistor substrate are nested.Type: GrantFiled: December 26, 2018Date of Patent: March 29, 2022Assignee: Wuhan Ching Star Optoelectronies Technology Co., Ltd.Inventors: Qipei Zhang, Yun Yu
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Patent number: 11281037Abstract: The invention relates to a display device having an integrated, optically operating proximity sensor system (30) for detecting an object present within an observation space in front of the display device, such as a hand a finger of a hand of a person. The display device is provided with a display unit (22), which has a front side having an information-displaying display surface (20) and having an edge region (18), which adjoins said display surface and is not used for the display of information, and a rear side. The display device also has a proximity sensor system (30) having at least one transmitter (32) for emitting sensor radiation toward the observation space and having at least one receiver (34) for receiving sensor radiation reflected from the observation space.Type: GrantFiled: July 12, 2018Date of Patent: March 22, 2022Assignee: Behr-Hella Thermocontrol GmbHInventors: RĂ¼diger Schmidt, Tobias Schwab, Tomasz Tarnowski
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Patent number: 11281053Abstract: The present disclosure provides a display panel, a display substrate, and a manufacturing method thereof. The display substrate comprises a substrate, a first planar layer, and a BPS light-shielding layer. Wherein the BPS light-shielding layer is made of a composite material including polydopamine and graphene oxide, which can strengthen a binding force between the BPS light-shielding layer and the first planar layer and improve light-shielding effect of the BPS light-shielding layer. The manufacturing method of the display substrate is simple, and making liquid crystals uniformly filled, thereby improving display quality of panels.Type: GrantFiled: November 26, 2019Date of Patent: March 22, 2022Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Zhiming Xu
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Patent number: 11278900Abstract: Microperturbation fluidic assembly systems and methods are provided for the fabrication of emissive panels. The method provides an emissive substrate with a top surface patterned to form an array of wells. A liquid suspension is formed over the emissive substrate top surface, comprising a first liquid and emissive elements. Using an array of micropores, a perturbation medium, which optionally includes emissive elements, is injected into the liquid suspension. The perturbation medium may be the first liquid, a second liquid, or a gas. A laminar flow is created in the liquid suspension along the top surface of the emissive substrate in response to the perturbation medium, and emissive elements are captured in the wells. The ejection of the perturbation medium can also be used to control the thickness of the liquid suspension overlying the top surface of the emissive substrate.Type: GrantFiled: January 8, 2020Date of Patent: March 22, 2022Assignee: eLux, Inc.Inventors: Kenji Sasaki, Shu-han Yu, Paul J. Schuele