Fiberoptic Faceplate Patents (Class 349/159)
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Patent number: 11294422Abstract: In one implementation, an apparatus includes a display having a front surface and a back surface. The display includes a plurality of pixel regions that emit light from the front surface to display a displayed image and a plurality of apertures that transmit light from the front surface to the back surface. The apparatus includes a camera disposed on a side of the back surface of the display. The camera is configured to capture a captured image. The apparatus includes a processor coupled to the display and the camera. The processor is configured to receive the captured image and apply a first digital filter to a first portion of the captured image and a second digital filter, different than the first digital filter, to a second portion of the captured image to reduce image distortion caused by the display.Type: GrantFiled: September 24, 2019Date of Patent: April 5, 2022Assignee: APPLE INC.Inventors: Manohar B. Srikanth, Marduke Yousefpor, Ting Sun, Kathrin Berkner-Cieslicki, Mohammad Yeke Yazdandoost, Ricardo J. Motta
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Patent number: 10600382Abstract: An array substrate, data driving circuit, data driving method and display apparatus are provided. The array substrate comprises multiple rows of first scan lines, multiple rows of second scan lines, and multiple columns of data lines. The first scan lines and the data lines define crosswise pixel regions in which pixel electrodes, common electrodes, first switch unit and second switch unit are disposed. The pixel electrode is connected to data line adjacent in first row direction through first and second terminals of first switch unit. The common electrode is connected to data line adjacent in second row direction through first and second terminals of second switch unit. The first and second scan lines are connected to control terminals of first and second switch unit within odd-numbered and even-numbered column pixel regions respectively. The amount of the data lines and the number of pins of data driving chip can be reduced.Type: GrantFiled: August 3, 2016Date of Patent: March 24, 2020Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yi Zheng, Jun Long, Lei Guo, Lingyun Shi
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Patent number: 10459588Abstract: A display device including a display panel having a first surface including a display area configured to display an image, and a second surface disposed on the opposite side of the display panel from the first surface, and a touch panel disposed on the first surface, the touch panel including a sensing electrode unit disposed on the first surface, in which at least a portion of each of the display panel and the touch panel is bendable, such that centers of curvature of the display panel and the touch panel are positioned outside the second surface, and the sensing electrode unit is configured to be applied with compressive force when the display device is bent.Type: GrantFiled: April 5, 2019Date of Patent: October 29, 2019Assignee: Samsung Display Co., Ltd.Inventors: Young Sik Kim, Jung Mok Park, Chang Bum Kim, Hyung Chul Kim
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Patent number: 10371983Abstract: A display device includes a display panel including a plurality of pixels each having a plurality of sub-pixels; and a light path adjustment film on the display panel, wherein the light path adjustment film includes a first base film, and a pattern layer on a surface of the first base film, wherein the pattern layer includes a plurality of first patterns having a first refractive index, and a plurality of second patterns between the first patterns and having a second refractive index less than the first refractive index, and wherein the first pattern includes a top surface spaced apart from the display panel and parallel with the display panel, a bottom surface between the top surface and the display panel, and a slanted surface connecting the top surface and the bottom surface.Type: GrantFiled: July 25, 2017Date of Patent: August 6, 2019Assignee: LG Display Co., Ltd.Inventors: Se-Min Lee, Hyeok-Joon Yoon, Ju-Sang Rhim, Dae-Yong Kim, Eun-Hee Choi, Se-Jin Lee
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Patent number: 10185171Abstract: A light control member includes a light-transmissive first substrate, a light diffusing portion which is defined on a first surface of the first substrate, and a light shielding layer which is defined in a first region other than a second region in which the light diffusing portion is formed on the first surface and includes a light emitting end surface in contact with the first substrate, and a light incident end surface opposite the light emitting end surface and having a first area larger than a second area of the light emitting end surface, and structured such that a height from the light incident end surface to the light emitting end surface is larger than a layer thickness of the light shielding layer.Type: GrantFiled: June 3, 2015Date of Patent: January 22, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Sho Ochi, Yasushi Asaoka, Tsuyoshi Maeda
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Patent number: 9910212Abstract: A display device includes a light source which emits a light and a display panel which displays an image using the light. The display panel includes a first substrate, a second substrate spaced apart from the first substrate, a plurality of pixels disposed between the first and second substrates, and a light guide layer disposed between the first substrate and the pixels. The light guide layer includes light tunnels which receive the light from the light source and a refractive layer which covers the light tunnels.Type: GrantFiled: April 19, 2016Date of Patent: March 6, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Taeeun Kim, Jinse Kim, Yisoo Won, Donghun Lee
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Patent number: 9891467Abstract: A liquid crystal display device includes a backlight that emits unpolarized blue light, a reflective polarizing layer which is provided on an emission side of the backlight and converts blue light to linearly polarized light, a quantum rod layer which is provided on a blue linearly polarized light emission side of the reflective polarizing layer and converts blue linearly polarized light to red linearly polarized light and green linearly polarized light using multiple quantum rods, and a liquid crystal panel disposed on a red linearly polarized light and green linearly polarized light emission side. In the quantum rod layer, a polarization direction of the blue linearly polarized light emitted from the reflective polarizing layer and a long axis direction of the quantum rods are parallel to each other.Type: GrantFiled: December 22, 2016Date of Patent: February 13, 2018Assignee: FUJIFILM CorporationInventors: Yujiro Yanai, Yukito Saitoh
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Patent number: 9810941Abstract: A transflective LCD panel includes a pixel array substrate, an opposite substrate, and a liquid crystal layer disposed between the pixel array substrate and the opposite substrate. The pixel array substrate includes a first substrate, pixel units, and reflective layers. Each pixel unit has a transmissive region and a reflective region, and the reflective layers are disposed in the reflective region. The opposite substrate is disposed above the pixel array substrate and includes a second substrate, a color filter layer, and light scattering layers. A thickness of the color filter layer is greater than a thickness of each light scattering layer. A first bottom surface of the color filter layer is aligned to a second bottom surface of each light scattering layer. The light scattering layers correspond to the reflective layers.Type: GrantFiled: January 29, 2016Date of Patent: November 7, 2017Assignee: Chunghwa Picture Tubes, LTD.Inventor: Jiun-Jr Huang
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Patent number: 9733411Abstract: A light guide is provided. The light guide includes a first major surface comprising an array of Z-shaped extraction elements. Each Z-shaped extraction element includes: a first face; a second face adjoining the first face, wherein the first face and an upper portion of the second face define an indentation projecting inwardly from a plane defined by the first major surface; and a third face adjoining the second face, wherein the third face and a lower portion of the second face define a protrusion projecting outwardly from the plane defined by the first major surface.Type: GrantFiled: October 31, 2013Date of Patent: August 15, 2017Assignee: FLUXWERX ILLUMINATION INC.Inventor: Scott Santoro
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Patent number: 9680121Abstract: The present invention discloses an organic light-emitting diode (OLED) and an electronic device, wherein the OLED includes a first carrier transport layer and a second carrier transport layer that are set opposite to each other, and a light-emitting layer; the light-emitting layer includes a first light-emitting sub-layer with a hollow structure, and a second light-emitting sub-layer which includes a body part and a projecting part, wherein the projecting part projects from the body part and is accommodated in the hollow structure; wherein a surface of the first light-emitting sub-layer and a surface of the projecting part form the first surface of the light-emitting layer, and a surface of the body part forms the second surface of the light-emitting layer. By the present invention, the working voltage is lowered, the power consumption is reduced, and in addition, the manufacturing process is simplified due to the reduction of the number of layers.Type: GrantFiled: May 26, 2014Date of Patent: June 13, 2017Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yuanhui Guo, Feng Qin, Hui Wang, Chun Wang, Yisan Zhang
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Patent number: 9575217Abstract: Optical films, and organic light-emitting display devices employing the same, include a high refractive index pattern layer including a lens pattern region and a non-pattern region alternately formed, wherein the lens pattern region includes a plurality of grooves each having a depth larger than a width thereof, and the non-pattern region has no pattern; and a low refractive index pattern layer formed of a material having a refractive index smaller than a refractive index of the high refractive index pattern layer, wherein the low refractive index pattern includes a plurality of filling portions filling the plurality of grooves.Type: GrantFiled: July 20, 2015Date of Patent: February 21, 2017Assignees: Samsung Electronics Co., Ltd., Cheil Industries, Inc.Inventors: Hong-shik Shim, Eun-young Cho, Hyun-min Kim, You-min Shin, Young Oh, Chul-ho Jeong
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Patent number: 9436223Abstract: A display device includes: a display panel configured for displaying an image; at least one panel attached to the display panel; an adhesive layer formed between the display panel and the at least one panel and configured to attach the at least one panel to the display panel; a plurality of print layers formed on an outer circumferential surface of the at least one panel to block light transmitted through the adhesive layer; and a plurality of bubble outlets formed in at least one of the plurality of print layers to discharge bubbles included in the adhesive layer.Type: GrantFiled: September 26, 2014Date of Patent: September 6, 2016Assignee: LG Display Co., Ltd.Inventor: NamKook Youn
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Optical films for reducing color shift and organic light-emitting display devices employing the same
Patent number: 9341750Abstract: Optical films, and organic light-emitting display devices employing the same, include a high refractive index pattern layer including a lens pattern region and a non-pattern region alternately formed, wherein the lens pattern region includes a plurality of grooves each having a depth larger than a width thereof, and the non-pattern region has no pattern; and a low refractive index pattern layer formed of a material having a refractive index smaller than a refractive index of the high refractive index pattern layer, wherein the low refractive index pattern includes a plurality of filling portions filling the plurality of grooves.Type: GrantFiled: January 17, 2014Date of Patent: May 17, 2016Assignees: Samsung Electronics Co., Ltd., Cheil Industries, Inc.Inventors: Hong-shik Shim, Eun-Young Cho, Hyun-Min Kim, You-Min Shin, Young Oh, Chul-Ho Jeong -
Patent number: 9261746Abstract: In order to suppress crosstalk between a pixel electrode and a source line to reduce flicker, an LCD device includes: gate lines 102 and source lines 105 which are provided in a grid pattern; pixel electrodes 111 arranged in a matrix pattern so as to correspond to intersections of the gate lines and the source lines; a transparent auxiliary capacitor electrode 109; and switching elements 121 configured to apply an image signal voltage supplied from the source line 105 to the pixel electrode 111 according to a scanning signal applied from the gate line 102. The switching element 121 is formed by using an oxide semiconductor layer 104, and the transparent auxiliary capacitor electrode 109 is provided between the source line 105 and the pixel electrode 111.Type: GrantFiled: August 3, 2012Date of Patent: February 16, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Seiichi Uchida, Seiji Kaneko, Yasuyuki Ogawa, Kaoru Yamamoto, Kohhei Tanaka, Yutaka Takamaru, Shigeyasu Mori
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Patent number: 9245463Abstract: A display apparatus includes a first substrate, a second substrate, a pixel layer and an adhesive part. The first substrate includes an adhesive area, fiber bundles and a base material which is impregnated between the fiber bundles. The second substrate includes an adhesive area, fiber bundles and a base material which is impregnated between the fiber bundles. The pixel layer is between the first and second substrates and includes a display area. The adhesive part is between the first substrate and the second substrate, is in each of the adhesive areas of the first and second substrates, and seals the pixel layer between the first and second substrates. The adhesive area of the first or second substrate includes an exposure area through which the fiber bundles are exposed, and the adhesive part contacts the exposure area.Type: GrantFiled: August 21, 2012Date of Patent: January 26, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hee-Keun Lee, Haeju Yun
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Patent number: 9213131Abstract: The embodiments of the present invention disclose a back-plate structure of backlight, a backlight and a display device. The backlight is applied to a display device. The back-plate structure comprises a substrate and a plurality of optical fibers disposed on the substrate. Each optical fiber is provided with a light outlet corresponding to a sub-pixel of the display device so that light inputted into the optical fiber is emitted to the sub-pixel to which the light outlet corresponds via the light outlet.Type: GrantFiled: August 7, 2013Date of Patent: December 15, 2015Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Changlin Leng
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Patent number: 8953138Abstract: In a flat panel display and a method of fabricating the same, the flat panel display includes a substrate having a pixel region and alignment mark regions. The alignment mark regions are disposed at opposite sides of the pixel region and along the pixel region. A unit pixel array is arranged on the pixel region in a matrix manner. The alignment mark regions have at least one pair of alignment marks disposed thereon in an opposing manner. The alignment mark pairs are located in correspondence with respective columns of the unit pixel array.Type: GrantFiled: April 6, 2006Date of Patent: February 10, 2015Assignee: Samsung Display Co., Ltd.Inventors: Tae-Min Kang, Jae-Ho Lee, Seong-Taek Lee, Jin-Soo Kim
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Patent number: 8854594Abstract: Systems and methods are provided for tracking at least position and angular orientation. The system comprises a computing device in communication with at least two cameras, wherein each of the cameras are able to capture images of one or more light sources attached to an object. A receiver is in communication with the computing device, wherein the receiver is able to receive at least angular orientation data associated with the object. The computing device determines the object's position by comparing images of the light sources and generates an output comprising the position and angular orientation of the object.Type: GrantFiled: August 31, 2010Date of Patent: October 7, 2014Assignee: CAST Group of Companies Inc.Inventors: Gilray Densham, Justin Eichel
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Patent number: 8603574Abstract: A method of forming a curved touch surface is disclosed. The method can include depositing and patterning a conductive thin film on a flexible substrate to form at least one touch sensor pattern, while the flexible substrate is in a flat state. According to certain embodiments, the method can include supporting the flexible substrate in the flat state on at least one curved forming substrate having a predetermined curvature; and performing an anneal process, or an anneal-like high-heat process, on the conductive thin film, wherein the anneal process can cause the flexible substrate to conform to the predetermined curvature of the at least one curved forming substrate. According to an embodiment, the curved forming substrate can include a first forming substrate having a first predetermined curvature and a second forming substrate having a second predetermined curvature complementing the first predetermined curvature.Type: GrantFiled: November 5, 2010Date of Patent: December 10, 2013Assignee: Apple Inc.Inventors: Lili Huang, Seung Jae Hong, John Z. Zhong
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Patent number: 8582073Abstract: A method of manufacturing a liquid crystal panel includes the steps of simultaneously forming a gate electrode of a TFT and a lower layer of a marking pad, simultaneously forming a gate insulating film of the TFT and a protective insulating film covering the lower layer, performing various film deposition processes and patterning processes while the lower layer is covered with the protective insulating film, exposing a main surface of the lower layer except for its periphery by removing at least a part of the protective insulating film, simultaneously forming a pixel electrode and an upper layer of the marking pad covering the main surface of the lower layer in a portion not covered with the protective insulating film, and providing marking by providing a through hole by irradiating the marking pad with laser beams.Type: GrantFiled: February 24, 2010Date of Patent: November 12, 2013Assignee: Sharp Kabushiki KaishaInventor: Ikushi Yamazaki
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Patent number: 8545305Abstract: Gaming devices, gaming systems, methods of conducting a wagering game, and computer programs for initiating a wagering game are presented herein. A gaming device is presented that includes a wager input device for receiving wagers from players to play a wagering game, and a display for displaying outcomes of the wagering game. The gaming device also includes a multi-layer composite lighting assembly with a first light-emitting layer, a second light-emitting layer, and a spacer. The first light-emitting layer emits light of a first color in a first direction, whereas the second light-emitting layer emits light of a second color in a second direction. The spacer, which is interposed between the first and second light-emitting layers, diffuses and focuses light emitted by the second light-emitting layer through the light emitted by the first light-emitting layer to thereby create a three-dimensional simulation of a component of the wagering game.Type: GrantFiled: June 28, 2010Date of Patent: October 1, 2013Assignee: WMS Gaming Inc.Inventors: Kenneth M. Ross, Emilio D. Perez, Norma C. Rodriguez, Sean E. Hayes, Vito M. Caporusso
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Patent number: 8432525Abstract: A backlight unit that is easy to slim and simplify the configuration is disclosed. The backlight unit includes: a lower case with an opened upper surface; at least one light source unit disposed at an inner side surface of the lower case; and a modularized optical unit disposed parallel to the light source unit and configured to include a light guide plate and optical sheets which are accommodated into a reflection sheet.Type: GrantFiled: September 21, 2010Date of Patent: April 30, 2013Assignee: LG Display Co., Ltd.Inventors: Sang Joon Choi, Young Min Kweon, Sang Ryeon Park, Jae Yong Ryu, Sung Sik Son
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Patent number: 8203690Abstract: A liquid crystal display device 10 of the present invention includes a liquid crystal panel 11 and a lighting device 12. The liquid crystal panel 11 has a liquid crystal layer 50 between a pair of glass substrates 31 and 41. The lighting device 12 provides illumination light to the liquid crystal panel 11. A concave lens 60 is formed on the glass substrate 41 among the pair of glass substrates 31 and 41, which is arranged on a side opposite from the lighting device 12. The concave lens 60 has a recess on a surface of glass substrate 41 on an opposite side from the liquid crystal layer 50 in an area overlapping a black dot failure occurrence area when viewed in plan. A light transmissive material 70 having a refraction index equal to or higher than the glass substrate 41 is applied to at least a part of the concave lens 60.Type: GrantFiled: May 1, 2008Date of Patent: June 19, 2012Assignee: Sharp Kabushiki KaishaInventor: Masaki Ikeda
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Patent number: 8184241Abstract: The present invention mechanically protects a surface of a miniaturized liquid crystal display device for mobile phone or the like without deteriorating image quality and without increasing a thickness of a whole display device. To achieve such an object, in the present invention, a liquid crystal display panel is constituted of a TFT substrate and a color filter substrate, a lower polarizer is adhered to a lower surface of the TFT substrate, and an upper polarizer is adhered to an upper surface of the color filter substrate. A face plate is adhered to the upper polarizer using an acrylic adhesive material which is cured by ultraviolet rays. For enhancing strength and adhesion property of the face plate, corners and side portions of the face plate are chamfered. By making a profile of the face plate smaller than a profile of the upper polarizer, the adhesion property of the face plate is enhanced.Type: GrantFiled: June 25, 2008Date of Patent: May 22, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Hidenao Kubota, Takahiro Yamada
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Patent number: 8169588Abstract: A flexible and highly reliable liquid crystal display device which is not easily damaged even if subjected to external pressure is provided. A method for manufacturing, with high yield, a flexible and highly reliable liquid crystal display device which is not easily damaged even if subjected to external pressure is also provided. A liquid crystal display device including a first structure body including a first fibrous body and a first organic resin, a second structure body including a second fibrous body and a second organic resin, a liquid crystal interposed between the first and second structure bodies, and a seal member for fixing the first and second structure bodies and for enclosing the liquid crystal. The first and second fibrous bodies are impregnated with the first and second organic resins, respectively, and the first structure body and the second structure body are in contact with each other.Type: GrantFiled: July 7, 2009Date of Patent: May 1, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiaki Oikawa, Shingo Eguchi, Mitsuo Mashiyama, Masatoshi Kataniwa, Hironobu Shoji, Masataka Nakada
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Publication number: 20120019764Abstract: A method of manufacturing a liquid crystal panel according to the present invention includes the steps of simultaneously forming a gate electrode of a TFT and a lower layer of a marking pad, simultaneously forming a gate insulating film of the TFT and a protective insulating film covering the lower layer, performing various film deposition processes and patterning processes while the lower layer is covered with the protective insulating film, exposing a main surface of the lower layer except for its periphery by removing at least a part of the protective insulating film, simultaneously forming a pixel electrode and an upper layer of the marking pad covering the main surface of the lower layer in a portion not covered with the protective insulating film, and providing marking by providing a through hole by irradiating the marking pad with laser beams. Thus, the marking pad including a metal film provided on a glass substrate for a liquid crystal panel can be prevented from corroding in a production process.Type: ApplicationFiled: February 24, 2010Publication date: January 26, 2012Applicant: SHARP KABUSHIKI KAISHAInventor: Ikushi Yamazaki
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Patent number: 8045128Abstract: A backlight unit includes a light source, an optical member for adjusting a traveling path of light exiting from the light source, a frame accommodating and fixing the optical member and including a plane portion, a sidewall portion vertically extending from the plane portion and at least one frame fastening portion downwardly extending from the sidewall portion and a lower receiving member for accommodating and fixing the frame. The lower receiving member includes a bottom portion having at least one hole formed therein to be fastened to the frame fastening portion and a side surface portion upwardly extending from edges of the bottom portion.Type: GrantFiled: August 28, 2008Date of Patent: October 25, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Kyeong-Min Kim, Min-Gwan Hyun
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Patent number: 7982846Abstract: A device display includes a light guide with an optical fiber embedded in an optically transparent material, a pixel array that has a pixel aligned with a first end of the optical fiber, and a reflective mechanism provided at a second end of the optical fiber. The reflective mechanism is capable of reflecting light, received by the pixel, back to the pixel via the optical fiber.Type: GrantFiled: August 10, 2010Date of Patent: July 19, 2011Assignee: Sony Ericsson Mobile Communications ABInventors: Mats Kleverman, Gunnar Klinghult, Mats Wernersson
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Publication number: 20110063563Abstract: A Twisted Nematic Liquid Crystal Display (TN-LCD for short below) with fast response time includes polarizer, glass substrates, indium tin oxide (ITO) electrodes, alignment layers, liquid crystal material, sealing material, spacers. The TN-LCD employs a method of improving its response time that can improve color saturation of the field sequential LCD or the response time of the optical shutter.Type: ApplicationFiled: September 15, 2010Publication date: March 17, 2011Applicant: SHENZHEN AV-DISPLAY CO., LTD.Inventors: Li Yan Long, Sun Yu Bao
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Patent number: 7834962Abstract: In a liquid crystal display (10) having a curved display surface, long sides of pixel structures (11) are arranged along the curve direction (Y) of the display surface and on a side of counter substrate provided is a black matrix having a black matrix opening (41a) whose length in the curve direction (Y) is not longer than E?L {(T1/2)+(T2/2)+d}/R, assuming that the length of the display surface in the curve direction (Y) is L, the thickness of an array substrate is T1, the thickness of the counter substrate is T2, the size of the gap between the array substrate and the counter substrate is d, the radius of curvature of the curved display surface is R and the length of a long side of a pixel electrode (29) provided in each of the pixel structures (11) is E. It thereby becomes possible to suppress display unevenness resulting from positional misalignment of the two substrates due to curvature and provide a liquid crystal display achieving a high-quality display image.Type: GrantFiled: December 8, 2008Date of Patent: November 16, 2010Assignee: Mitsubishi Electric CorporationInventors: Tetsuya Satake, Takumi Nakahata, Takanori Okumura, Yusuke Yamagata, Takeshi Ono, Naoki Nakagawa, Suguru Nagae
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Publication number: 20100277779Abstract: The present invention relates to a light modulating device, comprising a SLM and a pixelated optical element, in which a group of at least two adjacent pixels of the SLM in combination with a corresponding group of pixels in the pixelated optical element form a macropixel, the pixelated optical element being of a type such that its pixels comprise a fixed content, each macropixel being used to represent a numerical value which is manifested physically by the states of the pixels of the SLM and the content of the pixels of the pixelated optical element which form the macropixel.Type: ApplicationFiled: October 20, 2008Publication date: November 4, 2010Applicant: SeeReal Technologies S.A.Inventors: Gerald Futterer, Bo Kroll, Steffen Buschbeck
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Patent number: 7796234Abstract: A device display includes a light guide with an optical fiber embedded in an optically transparent material, a pixel array that has a pixel aligned with a first end of the optical fiber, and a reflective mechanism provided at a second end of the optical fiber. The reflective mechanism is capable of reflecting light, received by the pixel, back to the pixel via the optical fiber.Type: GrantFiled: April 23, 2007Date of Patent: September 14, 2010Assignee: Sony Ericsson Mobile Communications ABInventors: Mats Kleverman, Gunnar Klinghult, Mats Wernersson
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Patent number: 7773849Abstract: A backlight assembly for feeding illuminating light to a passive display panel is disclosed. The backlight assembly comprises a plurality of waveguides being formed and/or embedded in at least one substrate and arranged to feed illuminating light to each sub-pixel position of the passive display panel in a manner such that each pixel region is illuminated by at least two waveguides, wherein each waveguide of the at least two waveguides is disposed to illuminate one sub-pixel position of the pixel region by a respective color channel.Type: GrantFiled: October 18, 2006Date of Patent: August 10, 2010Assignee: OMS Displays Ltd.Inventor: Yosi Shani
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Patent number: 7764344Abstract: A ruggedized, high brightness, liquid crystal display (LCD) unit having a thin display panel, a front cover glass faceplate and an improved backlight assembly is disclosed. The faceplate is bonded to the panel using an improved process to minimize panel deformation and the backlight assembly is configured with an array of selectively spaced light emitting diodes (LED's) adapted to provide a uniform high brightness display with a minimal quantity of LED's.Type: GrantFiled: July 12, 2007Date of Patent: July 27, 2010Inventors: Brian Yi, Eun Kyung Lee, Gene Huh
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Patent number: 7711231Abstract: Disclosed are an optical display device producing uniform light distribution and a method of fabricating such devices. The optical display device has waveguides arranged in vertical and horizontal directions. The waveguide has a conical shape whose cross-section decreases towards the light-projection side thereof. At least one of the size, height, spacing, and refraction index of the waveguide is designed to be different for each section, depending on an incident angle and/or intensity of light inputted from a light source. Therefore, the intensity of projected light can be made uniform over all sections of the optical device.Type: GrantFiled: February 16, 2005Date of Patent: May 4, 2010Assignee: Sekonix Co., Ltd.Inventors: Gyuhwan Hwang, Youngbin Yu, Hyunsoo Lee
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Patent number: 7593615Abstract: Optical devices for guiding illumination are provided each having a body of optical material with staircase or acutely angled ramp structures on its top surface for distributing light inputted from one end of the device from the front exit faces of such structures along certain angular orientations, while at least a substantial portion of the light is totally internally reflected within the body until distributed from such front exit faces. Optical devices are also provided each have a body of optical material having a bottom surface with acutely angled ramp structures and falling structures which alternate with each other, such that light is totally internally reflected within the device until reflected by such ramp structures along the bottom surface to exit the top surface of the device or transmitted through the ramp structures to an adjacent falling structure back into the device.Type: GrantFiled: February 10, 2006Date of Patent: September 22, 2009Assignee: RPC Photonics, Inc.Inventors: Stephen H. Chakmakjian, Donald J. Schertler, Tasso Sales, G. Michael Morris
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Patent number: 7573558Abstract: Disclosed is a support unit for visually inspecting a display substrate, such as an LCD device, that enhances accuracy of the inspection by supporting the display substrate at dummy regions between cell areas. The support unit includes fixed bars disposed apart from each other and along a first direction; a plurality of support bars connected to the fixed bars, the support bars oriented along a second direction crossing the first direction and movable along the first direction; a guide bar mounted on at least one of the support bars, the guide bar oriented along the first direction and movable along the second direction; first and second auxiliary support bars connected to the guide bar, the auxiliary support bars oriented along the second direction and movable along the first direction; and a plurality of supporting means disposed on the support bars and the auxiliary support bars.Type: GrantFiled: September 15, 2008Date of Patent: August 11, 2009Assignee: LG Display Co., Ltd.Inventors: Sang-Ho Park, Jang-Hun O
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Patent number: 7242453Abstract: A liquid crystal display device includes a liquid crystal layer, a first substrate located closer to a viewer than the liquid crystal layer is, a second substrate arranged so as to face the first substrate with the liquid crystal layer interposed between them, and a first polarizer provided even closer to the viewer than the first substrate is. The first substrate includes a first plastic substrate on which a plurality of fibers is aligned in a first direction. The first polarizer is arranged such that the transmission axis of the first polarizer is either substantially parallel to, or substantially perpendicular to, the first direction.Type: GrantFiled: February 23, 2004Date of Patent: July 10, 2007Assignee: Sharp Kabushiki KaishaInventors: Shinsuke Saida, Noriko Watanabe
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Patent number: 7239367Abstract: A tiled display device is disclosed. The disclosed tiled display device includes a plurality of display panels each having an image display part in which a plurality of pixels are formed. The tiled display device includes a support frame having a plurality of panel receiving portions such that the plurality of display panels are tiled side by side and received therein. The tiled display device also includes a plurality of light guides each formed of an optical fiber bundle and disposed on the corresponding display panel, each light guide having an image receiving surface and a display surface that have different surface areas from each other, wherein a light and an image transmitted from the image display part are received by the image receiving surface and are reproduced on the display surface.Type: GrantFiled: June 29, 2005Date of Patent: July 3, 2007Assignee: LG.Philips LCD Co., Ltd.Inventors: Hyun Suk Jin, Min Joo Kim
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Patent number: 7212743Abstract: The configuration of a liquid crystal switch capable of reducing attenuation in an optical switch, and an optical reception device and an optical switch network that use this liquid crystal switch device are described. The liquid crystal switch device includes optical switches that perform ON/OFF switching of light beams by applying a voltage to the liquid crystal. The attenuation is further reduced by installing the ends of the optical fibers in depressions (or holes) that are formed in the substrate on which the switch elements are formed and in the liquid crystal encapsulation substrate.Type: GrantFiled: June 12, 2002Date of Patent: May 1, 2007Assignee: NEC CorporationInventors: Kazuhiko Hayashi, Akinobu Sato, Hirotaka Hokkyo
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Patent number: 7019810Abstract: The present invention replaces liquid crystal light control elements in fiber-optic faceplate liquid crystal displays (LCD) with suspended particle devices (SPDs), and provides for passive light control without the need for either polarized light or special alignment layers. A fluid or film containing suspended particles may be asymmetric in shape so that their optical density depends strongly upon their orientation. The orientation of the particles within the fluid can be manipulated by an application of an electric field, so that the fluid or film may appear to be transparent to both polarizations of light when the electric field is applied, and opaque when the electric field is removed and the orientation of the particles is allowed to randomize naturally.Type: GrantFiled: April 20, 2001Date of Patent: March 28, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventor: Laurence M. Hubby, Jr.
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Patent number: 7006747Abstract: A method for forming a display device including generating a face plate element by providing a first substrate with a photoactive resin thereon and exposing the photoactive resin to a light interference pattern formed by three collimated and coherent light sources, resulting in columnar features. A display device including an optical display element and a polymer face plate that receives or directs light to the optical display element. The face plate includes columnar areas where an index of refraction of the columnar areas is different from the index of refraction of a cladding area surrounding the columnar areas. The columnar areas are formed by exposure of a photoactive resin to a light interference pattern formed by three collimated and coherent light sources. A method of manufacturing a wave guide including providing a first substrate with a photoactive resin thereon and creating a wave guide channel in a wave guide template.Type: GrantFiled: January 17, 2003Date of Patent: February 28, 2006Assignees: 3M Innovative Properties Company, Brown UniversityInventors: Michael J. Escuti, Gregory P. Crawford, Richard C. Allen
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Patent number: 6999138Abstract: A method of manufacturing a tiled display is disclosed comprising the steps of: a) selecting a plurality of flat-panel displays, each flat-panel display having a display area comprising a plurality of pixels arranged in an array and having at least one defective pixel; and b) forming a tiled display by locating one or more faceplates in alignment with the plurality of flat-panel displays, the one or more faceplates having a plurality of lightpipes in an array, the lightpipes having input and output end faces for transmitting light from the display areas of the flat-panel displays to a display surface of the tiled display, wherein the input end face of each of the lightpipes has an area larger than the area of one pixel of the selected flat-panel displays, and wherein each lightpipe transmits light from more than one pixel from the display area of the flat-panel displays to the display surface of the tiled display. Also described are tiled display made according to the method.Type: GrantFiled: February 24, 2004Date of Patent: February 14, 2006Assignee: Eastman Kodak CompanyInventor: Ronald S. Cok
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Patent number: 6825895Abstract: A liquid-crystal display apparatus having a liquid-crystal panel, the liquid-crystal panel including a lower transparent substrate having a transparent electrode on at least one of its opposite surfaces, an upper transparent substrate having a transparent electrode opposite to the transparent electrode of the lower substrate, and liquid crystal held between the lower substrate and the upper substrate, wherein the upper substrate is thicker than the lower substrate. Preferably, the thickness of the lower substrate is not larger than ⅔ as large as the thickness of the upper substrate in order to achieve reduction in thickness and weight more effectively.Type: GrantFiled: March 15, 2002Date of Patent: November 30, 2004Assignee: Nitto Denko CorporationInventors: Yuuki Nakano, Toshihiko Ariyoshi, Seiji Umemoto, Hideo Abe, Ryoji Kinoshita
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Patent number: 6810164Abstract: A data communication system comprising a plurality of fiber optic cables and a fiber optic switching system, comprising: a support structure for securing light emitting/light receiving ends of the plurality of fiber optic cables in predetermined positions; and, means for re-directing light emitted from the light emitting/light receiving end of one of the fiber optic cables to the light emitting/light receiving ends of one, or more than one, of a plurality of the plurality of fiber optic cables. The re-directing means includes means for collimating and directing the light emitted from the end of one of the cables as a beam propagating along a predetermined direction and for re-directing the beam towards the end of another one of the cables selectively in accordance with an electrical signal. More particularly, the re-directing means includes electro-optical phase shifting medium, preferably liquid crystal molecules.Type: GrantFiled: February 3, 2004Date of Patent: October 26, 2004Assignee: Raytheon CompanyInventors: Terry A. Dorschner, Lawrence J. Friedman, Douglas S. Hobbs, L. Q. Lambert, Jr.
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Publication number: 20040085450Abstract: A surveillance system for the entryway of a residence utilizes an existing peephole in a door to install a camera and utilizes the existing telephones in a residence to communicate from within the residence with an individual standing in the entryway.Type: ApplicationFiled: March 28, 2003Publication date: May 6, 2004Inventor: John C. Stuart
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Patent number: 6704474Abstract: A data communication system comprising a plurality of fiber optic cables and a fiber optic switching system, comprising: a support structure for securing light emitting/light receiving ends of the plurality of fiber optic cables in predetermined positions; and, means for re-directing light emitted from the light emitting/light receiving end of one of the fiber optic cables to the light emitting/light receiving ends of one, or more than one, of a plurality of the plurality of fiber optic cables. The re-directing means includes means for collimating and directing the light emitted from the end of one of the cables as a beam propagating along a predetermined direction and for re-directing the beam towards the end of another one of the cables selectively in accordance with an electrical signal. More particularly, the re-directing means includes electro-optical phase shifting medium, preferably liquid crystal molecules.Type: GrantFiled: August 8, 2002Date of Patent: March 9, 2004Assignee: Raytheon CompanyInventors: Terry A. Dorschner, Lawrence J. Friedman, Douglas S. Hobbs, L. Q. Lambert, Jr.
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Patent number: 6636194Abstract: Writing and holding a data signal to and in a memory circuit in a pixel driving circuit are controlled according to whether a row scanning line and a column scanning line are selected or not. According to a data signal held in the memory circuit, a pixel driver connects a first voltage signal line or a second voltage signal line to a pixel. A reference voltage is applied to a counter electrode of a counter substrate, and display is performed by a potential difference between the reference voltage and a first voltage signal or a second voltage signal.Type: GrantFiled: April 4, 2000Date of Patent: October 21, 2003Assignee: Seiko Epson CorporationInventor: Ryo Ishii
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Patent number: 6621549Abstract: A display panel which employs semiconductor light sources, fiber optics, liquid crystal and a switching matrix to obtain efficient display.Type: GrantFiled: May 3, 2000Date of Patent: September 16, 2003Assignee: Florida Atlantic UniversityInventor: Grigoriy Kreymerman
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Patent number: 6559918Abstract: The liquid crystal display has a liquid crystal cell (15) containing a bistable ferroelectric liquid crystal (12). The liquid crystal cell (15) is a quarter wave cell and includes two opposing covering electrodes (13) arranged in a flexible, preferably plastic, substrate (11) on opposite sides of the bistable ferroelectric liquide crystal (12) and spacers (16) distributed between the covering electrodes (13). A diffuser or reflector (18) is arranged on a rear side of the substrate (11) so that light passes twice through the liquid crystal cell (15). The bistable liquid crystal display with the quarter wave liquid crystal cell is flexible but mechanically stable to mechanical impacts, torsion and bending. Orienting layers (14) for the liquid crystal are applied obliquely or diagonally to the surface of the substrate.Type: GrantFiled: April 2, 1999Date of Patent: May 6, 2003Assignee: Institut fuer Netzwerk- und Systemtheorie Labor fuer BildschirmtechnikInventor: Ernst Lueder