Patents by Inventor Sergey A. Shestak
Sergey A. Shestak has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7699472Abstract: A multi-view autostereoscopic projection system using a single projection lens unit. The projection type autostereoscopic system includes: a source of graphic signals representing at least three perspective views of a 3-D object on at least three parts of a frame, the at least three perspective views being directly or reflectively projected vertically or horizontally in a predetermined order, an image projector connected to the source of graphic signals, an image screen disposed across from the image projector, and first and second parallel plane mirrors installed between a projection lens of the image projector and the image screen to be substantially parallel to a projection axis at the same distance from the projection axis such that the first and second parallel plane mirrors are separated from each other by a predetermined distance.Type: GrantFiled: September 23, 2005Date of Patent: April 20, 2010Assignee: Samsung Electronics Co., Ltd.Inventor: Sergey Shestak
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Patent number: 7697203Abstract: A stereoscopic display for switching between two-dimensional (2D) and three-dimensional (3D) images. The stereoscopic display includes a display device providing an image and a parallax barrier unit that transmits all incident light in a 2D mode and forms barriers to separate an image for a left eye from an image for a right eye in a 3D mode by moving two facing polarization grating screens relative to each other. The polarization grating screens have a grating pattern such that two kinds of birefringence elements changing the directions of polarization of incident light into different directions are alternately disposed horizontally and vertically, and each row of the birefringence elements is shifted with respect to a previous row by a predetermined horizontal distance.Type: GrantFiled: April 4, 2006Date of Patent: April 13, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-hoon Cha, Sergey Shestak, Dae-sik Kim
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Publication number: 20100066820Abstract: Provided are methods and apparatuses for displaying a stereoscopic image. The method includes alternately generating repeated left-eye images and repeated right-eye images; turning off a backlight unit during a period in which a left-eye image and a right-eye image are mixed and turning on the backlight unit during a period in which only one of the left-eye and right-eye images is displayed; and controlling a left-eye shutter and a right-eye shutter of shutter glasses during a period in which the backlight unit is turned on.Type: ApplicationFiled: September 11, 2009Publication date: March 18, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Sang-moo PARK, Ho-seop LEE, Jong-hoon JEONG, Sergey SHESTAK, Dae-sik KIM
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Patent number: 7648243Abstract: A stereoscopic projection system is capable of minimizing a distance between viewing zones without reducing a distance between image projectors. In the stereoscopic projection system, a projector array having a plurality of image projectors are arranged substantially along an arrangement direction perpendicular to a connecting line between a left eye and a right eye of a viewer, and a directional screen has a first characteristic axis aligned at an angle with respect to the arrangement direction of the projector array, and a second characteristic axis perpendicular to the first characteristic axis. Therefore, the directional screen causes a plurality of images projected from the projector array to be relatively widened along the first characteristic axis and relatively narrowed along the second characteristic axis.Type: GrantFiled: December 6, 2005Date of Patent: January 19, 2010Assignee: Samsung Electronics Co., LtdInventors: Sergey Shestak, Kyung-hoon Cha
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Patent number: 7646537Abstract: Provided is a high-resolution field sequential autostereoscopic display. The display includes a display panel including display elements which display images, a lenticular array receiving a signal from the display panel and outputting a directional signal to be viewed with both eyes of a viewer, an anisotropic element arranged parallel to the lenticular array and outputting from the lenticular array a phase-alternated signal, a polarization switch switching the output phase of the anisotropic element according to an image refresh rate of the display panel, and a polarizer outputting a signal with a predetermined phase among phases of an output signal of the polarization switch. The autostereoscopic display provides full resolution stereoscopic images viewable without eyeglasses. Conventional low cost TN LCD panels can be applied to the autostereoscopic display without significant increase of flickering or crosstalk between the left and right images.Type: GrantFiled: January 3, 2007Date of Patent: January 12, 2010Assignee: Samsung Electronics Co., Ltd,Inventor: Sergey Shestak
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Patent number: 7626644Abstract: A multiview autostereoscopic display includes: a backlight; a first polarized panel transmitting light having a first polarization; a first polarization switch changing the polarization of incident light; a first anisotropic device array including anisotropic devices sequentially and repeatedly arranged in a horizontal direction, such that light transmitted from neighboring anisotropic devices has perpendicular polarizations; a lenticular lens array having lenticular lens devices, arranged horizontally, which separate incident light into different directions; a second polarized panel transmitting light having a second polarization; a second anisotropic device array having anisotropic devices alternately horizontally arranged, such that the anisotropic devices transmit light having perpendicular polarizations; a second polarization switch changing the polarization of light from the lenticular lens array; a third anisotropic device array having anisotropic devices, alternately vertically arranged, such that theType: GrantFiled: April 17, 2007Date of Patent: December 1, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Sergey Shestak, Dae-sik Kim, Sung-yong Jung
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Publication number: 20090201362Abstract: An autostereoscopic display system is provided. The autostereoscopic display system includes: an image panel being divided into two or more display regions, each of which alternately displays an image for a left eye and an image for a right eye; an optical shutter which is spaced apart from the image panel, including three or more shutter segments capable of being switched between a transparent state and a non-transparent state, and guiding an image for a left eye and an image for a right eye which are displayed on the image panel to left and right eyes of a viewer, respectively; and a control unit which controls the optical shutter being synchronized with the image for a left eye and the image for a right eye which are displayed on the image panel.Type: ApplicationFiled: October 3, 2008Publication date: August 13, 2009Applicant: Samsung Electronics Co., Ltd.Inventors: Sergey SHESTAK, Dae-sik KIM, Kyung-hoon CHA
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Patent number: 7551353Abstract: A glassless stereoscopic display, which does not produce color separation and black stripes, includes: a display panel displaying an image using a plurality of pixels; a 3D optical plate separating the image displayed by the display panel into a left-eye image and a right-eye image; and a prism sheet disposed between the display panel and the 3D optical plate and having a plurality of prism elements regularly arranged to rotate an image provided by each of the pixels of the display panel by approximately 90°.Type: GrantFiled: March 17, 2006Date of Patent: June 23, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Tae-hee Kim, Sergey Shestak, Dae-sik Kim
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Patent number: 7529028Abstract: An image display apparatus to produce an erect real image of an object in space. The image display apparatus includes a housing to accommodate the object including an opening to secure a field of view of the object, and a microlens array installed within the housing between the object and the opening and having a plurality of microlenses. The image display apparatus inverts an image of the object so that a viewer can view the erect real image of the object in space.Type: GrantFiled: October 27, 2005Date of Patent: May 5, 2009Assignee: Samsung Electronics Co., Ltd.Inventor: Sergey Shestak
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Publication number: 20090046142Abstract: Provided is an auto stereoscopic display improving brightness, including: a left eye pixel including a plurality of first color sub pixels and a first white sub pixel; a right eye pixel including a plurality of second color sub pixels and a second white sub pixel; and a viewing field separating unit which separates a viewing field of a left image formed by the left eye pixel and a viewing field of a right image formed by the right eye pixel.Type: ApplicationFiled: February 6, 2008Publication date: February 19, 2009Applicant: Samsung Electronics Co., Ltd.Inventors: Kyung-hoon CHA, Dae-sik Kim, Sergey Shestak, Seon-deok Hwang, Jae-seung Kim, Sang-moo Park, Jae-phil Koo
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Publication number: 20080252720Abstract: Provided is a highly efficient 2D-3D switchable display device. The image display device includes a display unit forming an image, and a switching visual field separation unit switching the image formed by the display unit into a 2D image or a 3D image, and comprising a lens array for separating a visual field and a liquid crystal lens controlled so as to have a refractive power offsetting or reinforcing a refractive power of the lens array.Type: ApplicationFiled: September 28, 2007Publication date: October 16, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dae-sik KIM, Sergey SHESTAK, Kyung-hoon CHA
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Publication number: 20080239176Abstract: A method of driving a polarization switch is provided. First viewing point images and second viewing point images are alternately displayed in a time-divisional method. A voltage is applied to the polarization switch during an activation period, and no voltage or a bias voltage is applied to the polarization switch during a relaxation period. The activation period is shorter than the relaxation period, and the bias voltage is smaller than the applied voltage.Type: ApplicationFiled: March 10, 2008Publication date: October 2, 2008Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Sergey SHESTAK, Dae-sik KIM
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Patent number: 7404642Abstract: An autostereoscopic display having an improved 2D/3D mode switchable structure, including a display device to display an image, and a parallax barrier unit to transmit all incident light in a 2D mode and to separate a left-eye image and a right-eye image by forming a barrier in a 3D mode. The parallax barrier unit includes a polarizer to transmit light having a predetermined polarizer polarization direction, a first plane array including first and second birefringent elements, which change a polarization direction of light transmitted through the polarizer into a first direction and a second direction opposite to the first direction, respectively, and a second plane array including third and fourth birefringent elements, which change a polarization direction of light transmitted through the first plane array into a third direction and a fourth direction, that is opposite from the third direction, respectively.Type: GrantFiled: October 27, 2005Date of Patent: July 29, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Sergey Shestak, Dae-sik Kim
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Publication number: 20080068329Abstract: A multi-view autostereoscopic display apparatus with improved resolution, includes: a display panel alternately displaying a plurality of images of different view points; an image separating device for separating the plurality of images such that the separated images can be alternately observed in different viewing zones; and a directional backlight unit switched between a plurality of different angular distributions of illumination to selectively provide light to the display panel, wherein the directional backlight unit is switched between the plurality of different angular distributions of illumination in synchronization with an image display period of the display panel.Type: ApplicationFiled: September 10, 2007Publication date: March 20, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sergey SHESTAK, Dae-sik KIM
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Publication number: 20080036853Abstract: An autostereoscopic display apparatus includes a backlight unit, a polarizing plate disposed in front of the backlight unit; a display panel displaying a left eye image and a right eye image by interlacing pixel lines of the left and right eye images alternately and sequentially; a lenticular lens sheet, disposed between the polarizing plate and the display panel, separating light emitted from the backlight unit into a left eye zone and a right eye zone; and a polarization switch controlling a polarization direction of light proceeding towards the left eye viewing zone so that light is incident on pixel lines of the display panel displaying the left eye image and a polarization direction of light proceeding towards the right eye viewing zone so that light is incident on pixel lines of the display panel displaying the right eye image, in synchronization with a vertical scanning time of the display panel.Type: ApplicationFiled: April 9, 2007Publication date: February 14, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sergey Shestak, Dae-sik Kim, Sung-yong Jung
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Publication number: 20080037120Abstract: A high resolution 2D/3D switchable display apparatus includes a display panel having display elements arranged in pixel units and configured to display an image. A lenticular lens array includes a plurality of lenticular lenses arranged in a horizontal direction and dividing light corresponding to a signal emitted from the display panel to visual regions of left and right eyes. A spatial optical modulator includes a plurality of cells configured to switch on or off in synchronization with a vertical scanning time of the display panel, wherein each of the plurality of cells is changed to a transparent or opaque state. The display panel sequentially displays an even field including even sequence data of a left eye image and a right eye image and an odd field including odd sequence data of the left eye image and the right eye image.Type: ApplicationFiled: July 5, 2007Publication date: February 14, 2008Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Jae-phil KOO, Sergey SHESTAK, Dae-sik KIM
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Publication number: 20070285366Abstract: An apparatus and method for driving a liquid crystal display to improve the quality of moving pictures are provided. The apparatus includes a transition check unit that determines whether an input image signal between a first frame and a second frame has changed and whether an input image signal between the second frame and a third frame has changed; an overdrive control unit that overdrives the input image signal in the second frame in an overdrive direction if the transition check unit determines that the input image signal between the first and second frames has changed, wherein the overdrive direction is one of an upper direction and lower direction; and an overdrive compensation unit that changes the input image signal in the third frame in an opposite direction to the overdrive direction if the transition check unit determines that the input image signal between the second and third frames has not changed.Type: ApplicationFiled: June 11, 2007Publication date: December 13, 2007Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tae-hyeun HA, Sergey SHESTAK, Dae-sik KIM, Sung-yong JUNG, Jae-phil KOO
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Publication number: 20070258140Abstract: A multiview autostereoscopic display includes: a backlight; a first polarized panel transmitting light having a first polarization; a first polarization switch changing the polarization of incident light; a first anisotropic device array including anisotropic devices sequentially and repeatedly arranged in a horizontal direction, such that light transmitted from neighboring anisotropic devices has perpendicular polarizations; a lenticular lens array having lenticular lens devices, arranged horizontally, which separate incident light into different directions; a second polarized panel transmitting light having a second polarization; a second anisotropic device array having anisotropic devices alternately horizontally arranged, such that the anisotropic devices transmit light having perpendicular polarizations; a second polarized switch changing the polarization of light from the lenticular lens array; a third anisotropic device array having anisotropic devices, alternately vertically arranged, such that the anType: ApplicationFiled: April 17, 2007Publication date: November 8, 2007Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sergey Shestak, Dae-sik Kim, Sung-yong Jung
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Publication number: 20070229951Abstract: 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: ApplicationFiled: March 21, 2007Publication date: October 4, 2007Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung-yong JUNG, Sergey SHESTAK, Dae-sik KIM
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Publication number: 20070153380Abstract: Provided is a high-resolution field sequential autostereoscopic display. The display includes a display panel including display elements which display images, a lenticular array receiving a signal from the display panel and outputting a directional signal to be viewed with both eyes of a viewer, an anisotropic element arranged parallel to the lenticular array and outputting from the lenticular array a phase-alternated signal, a polarization switch switching the output phase of the anisotropic element according to an image refresh rate of the display panel, and a polarizer outputting a signal with a predetermined phase among phases of an output signal of the polarization switch. The autostereoscopic display provides full resolution stereoscopic images viewable without eyeglasses. Conventional low cost TN LCD panels can be applied to the autostereoscopic display without significant increase of flickering or crosstalk between the left and right images.Type: ApplicationFiled: January 3, 2007Publication date: July 5, 2007Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Sergey Shestak