Using Polarized Light Patents (Class 359/465)
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Publication number: 20150002819Abstract: A polarization conversion system (PCS) is located in the output light path of a projector. The PCS may include a polarizing beam splitter, a polarization rotating element, a reflecting element, and a polarization switch. Typically, a projector outputs randomly-polarized light. This light is input to the PCS, in which the PCS separates p-polarized light and s-polarized light at the polarizing beam splitter. P-polarized light is directed toward the polarization switch on a first path. The s-polarized light is passed on a second path through the polarization rotating element (e.g., a half-wave plate), thereby transforming it to p-polarized light. A reflecting element directs the transformed polarized light (now p-polarized) along the second path toward the polarization switch. The first and second light paths are ultimately directed toward a projection screen to collectively form a brighter screen image in cinematic applications utilizing polarized light for three-dimensional viewing.Type: ApplicationFiled: September 12, 2014Publication date: January 1, 2015Inventors: Miller H. Schuck, Michael G. Robinson, Gary D. Sharp
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Publication number: 20140368908Abstract: Curved lenses configured to decode three dimensional content and method of fabricating the same. The lenses decode three-dimensional content displayed on televisions or computer monitors. Sheets from which the lenses are cut have either (i) a polarizing axis of 0 degrees relative to horizontal and one sheet has a retarder axis at ?45 degrees relative to horizontal and the other sheet has a retarder axis of +45 degrees relative to horizontal; (ii) a polarizing axis of ?45 degrees relative to horizontal and one sheet has a retarder axis at 0 degrees relative to horizontal and the other sheet has a retarder axis of 90 degrees relative to horizontal; or (iii) a polarizing axis of +45 degrees relative to horizontal and one sheet has a retarder axis at 0 degrees relative to horizontal and the other sheet has a retarder axis of 90 degrees relative to horizontal.Type: ApplicationFiled: March 7, 2014Publication date: December 18, 2014Applicant: MEI3D, LLCInventors: David A. Johnson, James Pritts
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Patent number: 8902502Abstract: An embodiment of the present invention provides a stereoscopic image displaying apparatus comprising a displaying panel that receives image data displaying an image and black data displaying no image for each frame section, and a polarization control panel that is located over the displaying panel and changes a polarization state.Type: GrantFiled: November 3, 2010Date of Patent: December 2, 2014Assignee: LG Display Co., Ltd.Inventors: Sungmin Jung, Hyungju Park
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Publication number: 20140347726Abstract: A selective hybrid-type three-dimensional (3D) image viewing device and a display method using the same are disclosed. The selective hybrid-type 3D image viewing device includes a first left and right image separation module, a second left and right image separation module, and a mechanical unit. The first left and right image separation module visualizes a 3D image output from a first display so that a user can view this 3D image. The second left and right image separation module visualizes a 3D image output from a second display to which a left and right image separation technique different from that of the first display has been applied so that the user can view this 3D image. The mechanical unit is configured such that the first and second left and right image separation modules are integrated into the mechanical unit in a detachable manner.Type: ApplicationFiled: March 25, 2014Publication date: November 27, 2014Applicant: Electronics and Telecommunications Research InstituteInventors: Ung-Yeon YANG, Ki-Hong KIM
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Publication number: 20140340747Abstract: A display including a display panel and a switchable retarder is provided. The switchable retarder disposed on a light path of a polarized image having a first polarization provided by the display panel and includes a first substrate, first electrode stripes, second electrode stripes, and a retardation medium. The first electrode stripes and the second electrode stripes are disposed between the display panel and the first substrate, and are electrically independent from each other. A retardation region is defined by each first electrode stripe and one second electrode stripe. The retardation medium is located at a side of the first electrode stripes and at a side of the second electrode stripes, and is controlled by an electric field in the corresponding retardation region such that each retardation region provides a retardation. Accordingly, the polarized image having the first polarization is transformed into the polarized image having a second polarization.Type: ApplicationFiled: July 31, 2014Publication date: November 20, 2014Inventors: JHEN-WEI HE, CHING-HUA HUNG, KUAN-HSIUNG WANG, YUNG-HSUN WU
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Patent number: 8891165Abstract: A 3D filter includes a first area having a plurality of even numbered and odd numbered alternating lines, each line having an equal height, the even numbered lines formed with a first polarization characteristic, a first dummy line formed outside of the first area and adjacent to a first line of the 3D filter, the first dummy line having a height greater than a height of a single line, the odd numbered lines formed with a second polarization characteristic, a second dummy line formed outside of the first area and adjacent to a last line of the 3D filter, the second dummy line having a height greater than the height of a single line, the first dummy line formed with a polarization characteristic opposite to a polarization characteristic of a first line in the first area, and the second dummy line formed with a polarization characteristic opposite to a polarization characteristic of a last line in the first area.Type: GrantFiled: December 27, 2013Date of Patent: November 18, 2014Assignee: LG Display Co., Ltd.Inventors: Sudong Roh, Hoon Kang, Jaewuk Jeong
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Patent number: 8885251Abstract: The present invention relates to an apparatus for confirming a functionalized flexible planar film on an optical lens. The apparatus according to the invention may also be used in a process of functionalization of an optical lens. As a factor of the functionalization that one wishes to introduce into said optical lens and the nature of the functionalized flexible planar film used, the functionalization process is a process of gluing, transfer, or molding of a functionalized flexible planar film onto an optical lens. The implementation of each of these respective processes makes it possible to obtain a functionalized optical lens, said functionalization being adhered, transferred, or molded using a functionalized flexible planar film.Type: GrantFiled: July 20, 2011Date of Patent: November 11, 2014Assignee: Essilor International (Compagnie Generale d'Optique)Inventor: Cédric Begon
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Patent number: 8873143Abstract: A three-dimensional image display apparatus is described. The three-dimensional image display apparatus includes a display panel and a film-type patterned retarder. The three-dimensional image display apparatus allows the phase retarding regions of the film-type patterned retarder to be deviated from the pixel regions of the display panel so that the line of vision the viewer along the extension of the phase retarding direction corresponds to the pixel regions of the display panel. In other words, the phase retarding regions of the film-type patterned retarder deviate from the pixel of the display panel to avoid the image crosstalk when the viewer looks on the three-dimensional image display apparatus.Type: GrantFiled: March 30, 2012Date of Patent: October 28, 2014Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Zan Yang, Chia-chiang Hsiao, Chih-wen Chen
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Patent number: 8870381Abstract: An imaging system (300) configured to reduce perceived flicker in three-dimensional images is provided. The imaging system (300) can include a plurality of light sources (305,306,307), a light combiner (302), a light modulator (303) and a polarization rotator (301). The light combiner (302) combines light received from each of the light sources into a combined beam (304). A first light portion (313) in the combined beam has a first light portion polarization state that is different from a second light portion polarization state of a second light portion (314). The light modulator (303) produces images by modulating the combined beam (304) along a projection surface (316). The polarization rotator (301) selectively rotates a polarization state of the combined beam (304) in synchrony with an image refresh cycle of the imaging system. A circular polarizer (1004) can be used to transform linear polarization states to circular polarization states.Type: GrantFiled: August 10, 2011Date of Patent: October 28, 2014Assignee: Microvision, Inc.Inventors: Mark O. Freeman, P. Selvan Viswanathan, David Lashmet
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Publication number: 20140293418Abstract: Disclosed embodiments relate to eyewear configured to reduce stray light. An exemplary embodiment of the eyewear accounts for various design factors, including the cross sectional profile of the rim, the micro topography of the rim surface, the reflectivity, the theatre or room geometry, proximity of the eye to the lens, lens size, and the screen gain. An exemplary eyewear includes lenses connected to the rims of a frame, and a path may be defined through a maximum height of the outer flange portion of a rim and a maximum height of the inner flange portion of the rim section. The path may be inclined at an angle relative to an angle ? relative to a longitudinal axis defined by the lenses.Type: ApplicationFiled: June 10, 2014Publication date: October 2, 2014Inventors: Gary D. Sharp, David A. Coleman
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Publication number: 20140293417Abstract: It is difficult to handle a right eye region and a left eye region that are formed separately. Therefore, provided is an eyeglass component comprising a polarization plate that has one absorption axis and a right eye region and left eye region arranged such that, when the eyeglass component is worn by a user, the right eye region is positioned in front of a right eye of the user and the left eye region is positioned in front of a left eye of the user; and a polarized light modulating layer that is layered on the polarization plate, has a first optical axis that modulates polarized light in the right eye region, includes a second optical axis that is in a different direction than the first optical axis and modulates polarized light in the left eye region, and has the right eye region and the left eye region formed integrally.Type: ApplicationFiled: March 26, 2014Publication date: October 2, 2014Applicant: ARISAWA MFG. CO., LTD.Inventors: Tatsuya SATO, Kazuhiro URA, Yasuaki UMEZAWA
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Publication number: 20140293025Abstract: A 3D projection and viewing system comprising viewing glasses having a frame including a receptacle mechanism on an eyewear frame, the receptacle mechanism configured to receive a corresponding portion attached to a temple part of eyeglasses comprising the eyewear frame. The corresponding portion may be, for example, an insertable snap device that fits into the receptacle mechanism and includes a barb or other latch mechanism that “snaps” into place.Type: ApplicationFiled: March 20, 2014Publication date: October 2, 2014Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventor: Julian Farnam
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Publication number: 20140293419Abstract: Provided are a laminated body which is made to extend and contract to a reduced extent due to humidity so as to reduce the number of the occurrence of crosstalk, a polarization plate having the same, a stereoscopic image display device and a stereoscopic image display system. A laminated body includes a patterned phase difference film having a supporter film and a patterned optical anisotropic layer in which a first phase difference region and a second phase difference region having mutually different in-plane slow axis directions and/or phase differences are disposed in a predetermined pattern on the supporter film, and a stiff body attached to a surface of the patterned optical anisotropic layer through a first attaching layer.Type: ApplicationFiled: June 11, 2014Publication date: October 2, 2014Applicant: FUJIFILM CorporationInventor: Makoto ISHIGURO
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Publication number: 20140293416Abstract: A stereoscopic device for recapturing light is provided. A chassis is open on front and back sides and forms a rectangular housing with top, bottom, and two sides that frame the front and back openings. A polarizing beam splitter is angled away from the back opening of the chassis and captively held by the chassis. The beam splitter is constructed of substantially orthogonally polarizing material. A phase shifting optic having a reflective surface coated by a phase shifting film is angled toward the front opening, wherein the beam splitter and phase shifting optic are in optical alignment with each other within the chassis. A modulator sized to cover the front opening is positioned in front of the chassis.Type: ApplicationFiled: January 21, 2014Publication date: October 2, 2014Applicant: Lightspeed Design, Inc.Inventors: Chris Ward, Robert Mueller, Kirk Melby
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Patent number: 8848116Abstract: A display including a display panel and a switchable retarder is provided. The switchable retarder disposed on a light path of a polarized image having a first polarization provided by the display panel and includes a first substrate, first electrode stripes, second electrode stripes, and a retardation medium. The first electrode stripes and the second electrode stripes are disposed between the display panel and the first substrate, and are electrically independent from each other. A retardation region is defined by each first electrode stripe and one second electrode stripe. The retardation medium is located at a side of the first electrode stripes and at a side of the second electrode stripes, and is controlled by an electric field in the corresponding retardation region such that each retardation region provides a retardation. Accordingly, the polarized image having the first polarization is transformed into the polarized image having a second polarization.Type: GrantFiled: July 21, 2011Date of Patent: September 30, 2014Assignee: Innolux CorporationInventors: Jhen-Wei He, Ching-Hua Hung, Kuan-Hsiung Wang, Yung-Hsun Wu
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Publication number: 20140268326Abstract: The present invention discloses methods and apparatus for forming a Viewing Set of Ophthalmic Lenses for Three-dimensional Perception of stereoscopic media and includes the resulting Viewing Set devices. The Viewing Sets include a left Ophthalmic Lens and a right Ophthalmic Lens, wherein each Ophthalmic Lens includes a translation filter that, when combined, allow for Three-dimensional Perception. The present invention also includes embodiments where the translation filters are included in an encapsulated Rigid Insert or Media Insert, wherein the Media Insert includes a variable optic zone.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: Johnson & Johnson Vision Care, Inc.Inventors: Randall B. Pugh, Karson S. Putt, Edward R. Kernick, Daniel Preza, Frederick A. Flitsch, Camille Higham, Sharika Snook
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Patent number: 8827150Abstract: A method for processing a matrix barcode displayed in three dimensions to extract data represented thereby involves capturing the component images of the three-dimensional representation. The method includes receiving a first component image of the matrix barcode and receiving a second component image of the matrix barcode as the two images are displayed on a display device. After the two images have been received, the first component image and the second component image of the matrix barcode are captured on an image capture device. Then depth information between elements of the matrix barcode presented in the first and second component images is determined and additional data represented in such depth information is extracted.Type: GrantFiled: August 16, 2013Date of Patent: September 9, 2014Assignee: EchoStar Technologies L.L.C.Inventors: Max Stephen Gratton, David S. Atkinson
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Publication number: 20140240828Abstract: A directional display may include a waveguide. The waveguide may include light extraction features arranged to direct light from an array of light sources by total internal reflection to an array of viewing windows and a reflector arranged to direct light from the waveguide by transmission through extraction features of the waveguide to the same array of viewing windows. The brightness of the directional display can be increased. An efficient and bright autostereoscopic display system can be achieved.Type: ApplicationFiled: February 21, 2014Publication date: August 28, 2014Applicant: RealD Inc.Inventors: Michael G. Robinson, Graham J. Woodgate
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Patent number: 8810569Abstract: An image display device includes a display panel which includes a plurality of subpixels and selectively displays a 2D image and a 3D image, a patterned retarder for dividing light from the display panel into first polarized light and second polarized light, and a control voltage generator, which generates a first DC control voltage of an OFF-level and a second DC control voltage of a slight-on level, which is higher than the OFF-level and is lower than a full-on level, and selectively outputs the first DC control voltage and the second DC control voltage depending on a driving mode.Type: GrantFiled: December 22, 2011Date of Patent: August 19, 2014Assignee: LG Display Co., Ltd.Inventor: Kwangjo Hwang
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Patent number: 8810743Abstract: Provided are a multifunctional optical filter for a stereoscopic display device and a stereoscopic display device including the same. The multifunctional optical filter includes a 3D filter layer patterned into a first region adjusting a polarization state of a right-eye image and a second region adjusting a polarization state of a left-eye image, and a color filter layer having a RGB pattern, wherein the RGB pattern of the color filter layer and the pattern of the 3D filter layer are formed to correspond to each other.Type: GrantFiled: August 19, 2011Date of Patent: August 19, 2014Assignee: LG Chem, Co. Ltd.Inventor: Joon-Hyung Kim
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Publication number: 20140218478Abstract: A device is disclosed that utilizes color or polarization to generate two separate images of the same object taken from the two perspectives that correspond to the left and right eyes of an observer. The two separate images are captured through a single camera objective (e.g., a single shutter camera), resulting in a single image with 3D information encoded in the color or polarization. Advantageously, the images are captured simultaneously, permitting obtaining stereoscopic images of both static and moving subjects, allowing 3D video capture. The device can be an attachment to a conventional, single shutter, image capturing device, such as a camera, a smart phone with a camera feature, computer with a camera feature, and so on.Type: ApplicationFiled: February 7, 2013Publication date: August 7, 2014Applicants: NATIONAL UNIVERSITY OF SINGAPORE, MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Matthew J. Lang, Taishi Zhang, Victor Horodincu, Siew Kit Hoi
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Publication number: 20140218648Abstract: A device for polarization of a video sequence to be stereoscopically viewed has a beam splitter, cells, mirrors, and a control circuit. The beam splitter receives an incident beam and separates it into two beams with perpendicular polarizations. It has four prisms, each with perpendicular faces. The first face of each prism has a phase-delaying plate, and the second face of each prism has a layer that reflects the first polarization and transmits the second. The prisms are arranged such that a first face of each prism is next to a second of an adjacent prism. The cells have variable polarization rotation and are crossed by the beams. Each mirror reflects a beam. The control circuit defines a polarization rotation of the cells such that the beams, after having crossed corresponding cells, have a common polarization that alternates between two perpendicular states.Type: ApplicationFiled: July 18, 2012Publication date: August 7, 2014Applicant: VOLFONI R&DInventor: Stephen Palmer
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Patent number: 8797620Abstract: This invention relates to autostereoscopic display assemblies, in particular for hand-held devices such as tablets, i-Pads, mobile phones, etc., wherein a stereoscopic effect is achieved by forming light beams are emitted from the display at different angles and with different polarization. The display assembly comprises a sandwiched structure consisting of a light-guide panel and a modified liquid-crystal display that is applied onto the light-guide panel. The panel has on its outer surface a net of light waveguides for delivery of light from the light source and for uniform distribution of light over the entire surface of the display. The different polarizations and angular directions of the beams perceived differently by a viewer's left and right eyes are achieved by providing the light-distribution waveguides with holograms of two different types.Type: GrantFiled: December 20, 2011Date of Patent: August 5, 2014Assignee: Ergophos, LLCInventors: Vladimir Yankov, Alexander Goltsov, Igor Ivonin, Konstantin Kravtsov, Leonid Velikov
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Patent number: 8797469Abstract: The present invention is for a stereoscopic image display device to achieve enhanced brightness during 3D image display using a switchable barrier and brightness enhancement polarizing films, the stereoscopic image display device includes a backlight unit to transmit light upward, a barrier cell located on the backlight unit, the barrier cell functioning as a barrier when voltage is applied thereto and a transparent cell when voltage is not applied thereto, a first brightness enhancement polarizing film attached to an upper surface of the barrier cell, and an image panel located on the first brightness enhancement polarizing film.Type: GrantFiled: July 18, 2011Date of Patent: August 5, 2014Assignee: LG Display Co., Ltd.Inventors: Sung-Woo Kim, Byung-Joo Lee
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Patent number: 8791988Abstract: An image display device includes a display panel, which includes a plurality of pixels and selectively implements a 2D image and a 3D image, and a patterned retarder for dividing light from the display panel, on which the 3D image is implemented, into first and second polarization components. The display panel includes first to fourth gate lines, which cross a data line and are disposed along a column direction in the order named, first and second pixels which are disposed between the first and second gate lines to be vertically adjacent to each other, third and fourth pixels which are disposed between the third and fourth gate lines to be vertically adjacent to each other, and a black matrix spatially for separating left and right images of the 3D image from each other.Type: GrantFiled: June 29, 2011Date of Patent: July 29, 2014Assignee: LG Display Co., Ltd.Inventor: Heeyoung Chae
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Patent number: 8780285Abstract: An apparatus for viewing stereoscopic images may include, but is not limited to: a first viewing lens including a first polarization layer; a second viewing lens including a second polarization layer; and one or more birefringence compensation layers. Further, the apparatus may be viewing glasses including a frame wearable by a user.Type: GrantFiled: September 25, 2009Date of Patent: July 15, 2014Assignee: Rockwell Collins, Inc.Inventors: Albert N. Stuppi, Bruce D. Hufnagel, Craig E. Harwood
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Patent number: 8770759Abstract: A projection display system includes a glasses system, a driving unit and a projection apparatus. The driving unit is electrically connected to the glasses system for repeatedly applying or removing a voltage to/from the glasses system. The projection apparatus includes an illumination system and a color wheel. The color wheel is in a transmission path of a light beam provided by the illumination system. The color wheel has a compensation zone and a plurality of color zones. When the color wheel is rotated, the compensation zone and the color zones sequentially pass through the light beam. The compensation zone has first, second and third sub compensation zones. A time for the first sub compensation zone passing through the light beam is substantially equal to a time for the third sub compensation zone passing through the light beam. A liquid crystal glasses and a control method are also provided.Type: GrantFiled: October 13, 2010Date of Patent: July 8, 2014Assignee: Coretronic CorporationInventors: Chin-Ku Liu, Sze-Ke Wang
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Publication number: 20140177049Abstract: An optical system and method that utilize multiple low-etendue lasers to illuminate multiple spots one or more spatial light modulators. Stereoscopic systems may be formed by using different wavelengths or different polarizations for each spot. Light from each spot is guided to each eye of the viewer by wearing 3D glasses.Type: ApplicationFiled: February 28, 2014Publication date: June 26, 2014Applicant: Laser Light Engines, Inc.Inventor: William Brady Beck
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Publication number: 20140177048Abstract: Provided are a multifunctional optical filter for a stereoscopic display device and a stereoscopic display device including the same. The multifunctional optical filter includes a 3D filter layer patterned into a first region adjusting a polarization state of a right-eye image and a second region adjusting a polarization state of a left-eye image, and a color filter layer having a RGB pattern, wherein the RGB pattern of the color filter layer and the pattern of the 3D filter layer are formed to correspond to each other.Type: ApplicationFiled: February 26, 2014Publication date: June 26, 2014Applicant: LG CHEM, LTD.Inventor: Joon-Hyung KIM
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Patent number: 8758868Abstract: An optical device is provided. The optical device according to one embodiment may be a light-dividing device, for example, a device that can divide incident light into at least two kinds of light having different polarization states. For example, the optical device can be used to realize a stereoscopic image.Type: GrantFiled: April 25, 2012Date of Patent: June 24, 2014Assignee: LG Chem Ltd.Inventors: Sin Young Kim, Kyung Ki Hong, Moon Soo Park, Seung Hun Chae, Eun Mi Seo, Doo Young Huh, Hyuk Yoon, Kyun Il Rah, Su Young Ryu
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Patent number: 8760505Abstract: An image display device including an image display panel configured to display a 2D image and a 3D image, a driving circuit configured to apply a data voltage of a 2D data format or a data voltage of a 3D data format to the image display panel, a controller configured to control the driving circuit in a 2D mode for displaying the 2D image or a 3D mode for displaying the 3D image, and a patterned retarder including a first retarder and a second retarder that are arranged line by line, the patterned retarder configured to divide the 3D image from the image display panel into a first polarization component and a second polarization component, the patterned retarder being aligned so that boundary portions of the first and second retarders are positioned in a center of pixels positioned on odd-numbered horizontal lines or even-numbered horizontal lines of the image display panel.Type: GrantFiled: November 23, 2010Date of Patent: June 24, 2014Assignee: LG Display Co., Ltd.Inventors: Insu Baik, Hoon Kang
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Patent number: 8752965Abstract: A stereoscopic display apparatus includes an image projection module, a plurality of projection lenses and an optical path switching module. The optical path switching module is disposed between the image projection module and the projection lenses. The optical path switching module has a light-incident surface and different light-emitting surfaces. An image signal generated by the image projection module enters the optical path switching module through the light-incident surface. The optical path switching module includes a plurality of polarization beam splitters and a polarization adjusting module. The polarization adjusting module is disposed between the polarization beam splitters. The optical path switching module is used for switching the polarization adjusting module time-sequentially for guiding the image signal to those different light-emitting surfaces respectively, and accordingly a plurality of image formation beams are formed from the light-emitting surfaces though the projection lenses.Type: GrantFiled: June 19, 2012Date of Patent: June 17, 2014Assignee: Delta Electronics, Inc.Inventor: June-Jei Huang
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Patent number: 8746887Abstract: A stereoscopic image projection system including: a beam projector for projecting a left eye image and a right eye image in a side by side format; a stereoscopic image adaptor for alternately projecting the left eye image and the right eye image onto a screen in a time sequence; and a shutter controller for synchronizing a time sequential operation of the stereoscopic image adaptor and opening and closing of right and left shutters of a user shutter glasses.Type: GrantFiled: July 23, 2010Date of Patent: June 10, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Sergey Shestak, Dae-sik Kim, Kyung-hoon Cha, Jae-phil Koo
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Publication number: 20140153093Abstract: Provided are an optical filter and a stereoscopic display device. The exemplary optical filter may be applied to the stereoscopic display device to observe a stereoscopic image in a wide viewing angle without the loss of brightness.Type: ApplicationFiled: February 4, 2014Publication date: June 5, 2014Inventors: Moon Soo PARK, Byoung Kun JEON, Sang Seop KIM, Kyung Ki HONG, Dong Ho KO, Doo Young HUH, Su Young RYU, Seung Ryong LEE
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Publication number: 20140153092Abstract: A stereoscopic image display and a method for manufacturing the same are disclosed. The stereoscopic image display includes a display panel, a polarizing plate positioned on a display surface of the display panel, a patterned retarder film positioned on the polarizing plate, and a pattern layer positioned between the display surface of the display panel and the polarizing plate. The pattern layer has a pattern groove provided with an air layer therein. The pattern groove has a wide lower part contacting the display surface of the display panel and a narrow upper part contacting the polarizing plate.Type: ApplicationFiled: September 13, 2013Publication date: June 5, 2014Applicant: LG Display Co., Ltd.Inventors: Donghoon Lee, Sungpil Ryu
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Patent number: 8743188Abstract: A stereoscopic image display apparatus and a driving method of the display apparatus are provided. The display apparatus includes a resolution enhancer that calculates an average brightness of first left-eye image data included in an nth (n is a natural number) line of the 3D image data and second left-eye image data included in an n+2th line of the 3D image data to obtain left-eye average data, calculates an average brightness of first right-eye image data included in an n+1th line of the 3D image data and second right-eye image data included in an n+4th line of the 3D image data to obtain right-eye average data, and converts the brightness of the left-eye average data and the right-eye average data into grayscale values.Type: GrantFiled: December 6, 2011Date of Patent: June 3, 2014Assignee: LG Display Co., Ltd.Inventor: Kiltae Kim
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Publication number: 20140146251Abstract: A 3D image display device includes: a backlight unit including a first color light source and a second color light source, which are alternately turned on; a display panel on a front side of the backlight unit and including a pixel, where the pixel includes a first subpixel including a first color filter and a second subpixel including a second color filter; a patterned circular polarizer on a front side of the display panel, extending substantially in a first direction, and including a first circular polarization part and a second circular polarization part having widths substantially the same as widths of the first subpixel and the second subpixel, respectively; and glasses including a left lens and a right lens, where each of the left lens and the right lens includes a plurality of circular polarization patterns and a shutter glass panel which turns on and off each circular polarization pattern.Type: ApplicationFiled: May 3, 2013Publication date: May 29, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Kwang Keun LEE, Mun-Ki SIM, Seon-Tae YOON, Jae Byung PARK, Hae Il PARK, Hyun Min CHO
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Patent number: 8736957Abstract: A transmitted light selecting device includes a first light selecting unit having a polarizing filter for allowing an image light ray having one polarization direction to pass therethrough; a phase difference film for providing phase differences to the light ray passing through the polarizing filter to emit light, in which light rays having polarization directions coexist, toward a viewer; a second light selecting unit having a polarizing filter having a polarized light transmission axis perpendicular to that of the polarizing filter; and a phase difference film for providing phase differences to a light ray passing through the polarizing filter to emit light, in which light rays having polarization directions coexist, toward the viewer.Type: GrantFiled: August 8, 2011Date of Patent: May 27, 2014Assignee: Mitsubishi Electric CorporationInventors: Takao Endo, Yuzo Nakano, Takayuki Yanagisawa, Yoshihito Hirano
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Publication number: 20140133025Abstract: A stereoscopic display device includes a display panel, a quarter-wave plate and a glass substrate. The display panel includes left-eye pixel line units, right-eye pixel line units and a color filter which including filter units and a black matrix between any two of adjacent filter units. The quarter-wave plate includes first retarders and second retarders. The glass substrate comprises opaque areas, and each opaque area is disposed on the two adjacent first retarder and the second retarder and used for blocking the light from the right-eye pixel line units into the second retarder or the light from the left-eye pixel line units into the first retarder. Therefore, the light corresponding to the right-eye or the left-eye signals is not obscured by the opaque areas even though users watch at a large angle so that it improves crosstalk to optimize 3D image quality.Type: ApplicationFiled: November 8, 2012Publication date: May 15, 2014Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Chia-Yu Lee
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Publication number: 20140126051Abstract: There is provided a light-guide, compact collimating optical device, including a light-guide having a light-waves entrance surface, a light-waves exit surface and a plurality of external surfaces, a light-waves reflecting surface carried by the light-guide at one of the external surfaces, two retardation plates carried by light-guides on a portion of the external surfaces, a light-waves polarizing beamsplitter disposed at an angle to one of the light-waves entrance or exit surfaces, and a light-waves collimating component covering a portion of one of the retardation plates. A system including the optical device and a substrate, is also provided.Type: ApplicationFiled: January 7, 2014Publication date: May 8, 2014Applicant: Lumus Ltd.Inventors: Yaakov Amitai, Mali Hadad, Naamah Friedmann
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Publication number: 20140118825Abstract: A stereoscopic image display apparatus including: a light source unit; a light guide plate having an incidence surface and an emission surface; and a liquid-crystal panel which spatially modulates light. The light source unit emits the light so that the light is incident on the incidence surface in the first and second directions for the right and left eyes of a viewer, which are different from each other and each is inclined at a predetermined angle in the emission surface with respect to a reference direction perpendicular to an alignment direction of the right and left eyes of the viewer. Also, the light emitted from the emission surface of the light guide plate is in a direction which is determined according to the propagation direction of the incident light and in which a component in the alignment direction, included in the propagation direction, is maintained.Type: ApplicationFiled: June 7, 2013Publication date: May 1, 2014Inventors: Shinichi Shikii, Keiji Sugiyama
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Publication number: 20140118813Abstract: There is provided a light-guide, compact collimating optical device, including a light-guide having a light-waves entrance surface, a light-waves exit surface and a plurality of external surfaces, a light-waves reflecting surface carried by the light-guide at one of the external surfaces, two retardation plates carried by light-guides on a portion of the external surfaces, a light-waves polarizing beamsplitter disposed at an angle to one of the light-waves entrance or exit surfaces, and a light-waves collimating component covering a portion of one of the retardation plates. A system including the optical device and a substrate, is also provided.Type: ApplicationFiled: January 7, 2014Publication date: May 1, 2014Applicant: Lumus LtdInventors: Yaakov Amitai, Mali Hadad, Naamah Friedmann
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Patent number: 8711060Abstract: A time sharing type autostereoscopic display apparatus and a method for driving the same are provided. The display apparatus includes a display panel; a polarization switch; and a control unit which controls the polarization switch so that each of N segments of the polarization switch is driven in synchronization with an image scanning time of the display panel corresponding to each segment, and controls the polarization switch so that a time when a driving signal is applied to an initial segment is delayed relative to a time when an image starts to be scanned after a vertical synchronization signal is applied to the display panel. The method includes controlling the display apparatus so that a time when a driving signal is applied to an initial segment delayed relative to a time when an image starts to be scanned.Type: GrantFiled: March 21, 2007Date of Patent: April 29, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-yong Jung, Sergey Shestak, Dae-sik Kim
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Publication number: 20140111857Abstract: A 3D filter includes a first area having a plurality of even numbered and odd numbered alternating lines, each line having an equal height, the even numbered lines formed with a first polarization characteristic, a first dummy line formed outside of the first area and adjacent to a first line of the 3D filter, the first dummy line having a height greater than a height of a single line, the odd numbered lines formed with a second polarization characteristic, a second dummy line formed outside of the first area and adjacent to a last line of the 3D filter, the second dummy line having a height greater than the height of a single line, the first dummy line formed with a polarization characteristic opposite to a polarization characteristic of a first line in the first area, and the second dummy line formed with a polarization characteristic opposite to a polarization characteristic of a last line in the first area.Type: ApplicationFiled: December 27, 2013Publication date: April 24, 2014Applicant: LG DISPLAY CO., LTD.Inventors: Sudong Roh, Hoon Kang, Jaewuk Jeong
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Patent number: 8681280Abstract: A stereoscopic image display and a method for driving the same are disclosed. The stereoscopic image display includes a display element to which data of a left eye image is written during a data scanning time of the left eye image and data of a right eye image is written during a scanning time of the right eye image, an active retarder cell positioned on a display surface of the display element, and shutter glasses including a left eye shutter and a right eye shutter that are electrically controlled and are alternately opened and closed. The active retarder cell converts a polarization characteristic of light from the display element during an active retarder scanning time.Type: GrantFiled: April 14, 2011Date of Patent: March 25, 2014Assignee: LG Display Co., Ltd.Inventor: Hyeonho Son
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Publication number: 20140071526Abstract: A stereoscopic image display device includes a substrate; a plurality of black matrices formed parallel to one another on a first surface of the substrate; a plurality of black stripes formed on a second surface of the substrate opposite the first surface, each of the plurality of black stripes corresponding to one of the plurality of black matrices, each of the plurality of black stripes having a width equal to or greater than a width of the corresponding one of the plurality of black matrices; and a patterned retarder film formed on the plurality of black stripes, the patterned retarder film including a plurality of first retarder patterns and a plurality of second retarder patterns, wherein a first retarder pattern is disposed over a region between a first pair of black stripes, and a second retarder pattern is disposed over a region between a second pair of black stripes that is adjacent to the first pair of black stripes, and wherein the width of each of the plurality of black stripes is less than or equType: ApplicationFiled: December 11, 2012Publication date: March 13, 2014Applicant: LG DISPLAY CO., LTD.Inventors: Seung-Man RYU, Jin-Yeong KIM, Mee-Ran PARK
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Publication number: 20140063376Abstract: This invention discloses optical modules, and eyewear using them for performing viewing function(s) including viewing a shutter-based 3D display, viewing a polarization-based 3D display, emulating the Pulfrich effect, emulating a pair of pinhole glasses and emulating a pair of sunglasses.Type: ApplicationFiled: August 30, 2012Publication date: March 6, 2014Applicant: 3ND TECHNOLOGY LIMITEDInventors: Wing Hon TSANG, Ka Lun Chan
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Publication number: 20140055753Abstract: A dual-chip light splitting and light combining module is provided, which comprises a light splitting prism, a first mirror, a first polarizing TIR prism, a first displaying chip, a second mirror, a second TIR prism, a second displaying chip and a light combining prism. The dual-chip light splitting and light combining module is adapted to split an incident non-polarized light into a first polarized light and a second polarized light and combine the first polarized light and the second polarized light together. Also, a 3D projection optical system comprising the dual-chip light splitting and light combining module is provided.Type: ApplicationFiled: December 28, 2011Publication date: February 27, 2014Applicant: Zhejiang Estar Display Tech Co., Ltd.Inventor: Meihong Liu
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Patent number: 8647726Abstract: An optical element and a stereoscopic image display device are provided. The optical element is a light-dividing element, for example, an element that can divide incident light into at least two kinds of light having different polarized states. Therefore, the optical element can be used to realize a stereoscopic image.Type: GrantFiled: June 19, 2012Date of Patent: February 11, 2014Assignee: LG Chem, Ltd.Inventors: Eun Mi Seo, Sin Young Kim, Kyun Il Rah, Moon Soo Park, Seung Hun Chae
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Patent number: 8643706Abstract: Provided are a display apparatus and a control method of the same. The display apparatus includes: an organic light emitting panel which alternately scans a left-eye image and a right-eye image in units of a frame; a signal transmitter which outputs a control signal to external shutter glasses to open or to close a left-eye shutter and a right-eye shutter of the shutter glasses; and a controller which controls the signal transmitter to make open and closed states of the left-eye shutter and the right-eye shutter be opposite to each other, and controls emission of the organic light emitting panel to display an image corresponding to an open shutter and not to display an image opposite to the open shutter when one of the left-eye shutter and the right-eye shutter is open.Type: GrantFiled: January 15, 2010Date of Patent: February 4, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Tae-hyeun Ha, Hyung-rae Kim, Jung-jin Park, Jae-sung Park