Patent application number | Description | Published |
20080204874 | HIGHLY EFFICIENT 2D/3D SWITCHABLE STEREOSCOPIC DISPLAY APPARATUS - Provided is a highly efficient two-dimensional (2D)/three-dimensional (3D) image switchable stereoscopic display. The stereoscopic display apparatus includes: a backlight unit which has a reflective plate disposed on a bottom surface thereof; a polarizer which only transmits light of a specific polarization direction emitted from the backlight unit; a first birefringent element array including a plurality of alternating first and second birefringent elements that change the polarization direction of incident light; a second birefringent element array including a plurality of alternating third and fourth birefringent elements that change the polarization direction of incident light; a reflective polarizing sheet which transmits light of a specific polarization direction transmitted by the second birefringent element array while reflecting light of another polarization direction transmitted by the second birefringent element array; and a display panel which displays an image. | 08-28-2008 |
20080231952 | HIGHLY EFFICIENT 2D/3D SWITCHABLE DISPLAY DEVICE - Provided is a high efficient 2-dimensional (2D)/3-dimensional (3D) switchable display device including: a light source unit; a first reflective polarizer reflecting a first polarized light beam and transmitting a second polarized light beam orthogonal to the first polarized light beam from among light beams irradiated from the light source unit; a switching parallax barrier unit controlled in one of 2D and 3D modes, wherein, in the 2D mode, the switching parallax barrier unit wholly transmits the light beams having passed the first reflective polarizer, and, in the 3D mode, an area of the switching parallax barrier unit transmits the light beams and an area of the switching parallax barrier unit intercepts the light beams; and a display panel modulating light, that is transmitted through the switching parallax barrier unit, according to an image signal, to form an image. | 09-25-2008 |
20080239176 | METHOD OF DRIVING LIQUID CRYSTAL POLARIZATION SWITCH - 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. | 10-02-2008 |
20080252720 | HIGHLY EFFICIENT 2D-3D SWITCHABLE DISPLAY DEVICE - 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. | 10-16-2008 |
20080297671 | 2D/3D DISPLAY APPARATUS WITH FULL RESOLUTION USING SCANNING BACKLIGHT AND METHOD OF CONTROLLING SAME - Provided are a 2D (2-dimensional)/3D (3-dimensional) display apparatus using a scanning backlight and a method of controlling the same. The apparatus sequentially includes a backlight which is capable of scanning and irradiating polarized light, a retarder which transmits light emitted from the backlight as phase-maintained light and phase-delayed light, a lenticular array which transmits light from the retarder as directional light, and a display panel which displays an inputted image and which is illuminated by light being transmitted through the lenticular array. The backlight includes a plurality of light guide plates which are independently disposed and arranged in parallel with one another, a plurality of light sources which are provided for the respective light guide plates and emit light, and a plurality of polarization filters which are arranged in front of the respective light guide plates. The scanning frequency of the backlight is synchronized with the input frequency of the input frames so that an illumination function and a scanning function are simultaneously performed using one backlight, a 2D image and a 3D image are efficiently displayed and crosstalk is reduced. | 12-04-2008 |
20080316596 | BACKLIGHT UNIT AND 2D/3D SWITCHABLE IMAGE DISPLAY DEVICE EMPLOYING THE BACKLIGHT UNIT - A 2D/3D switchable image display device is provided. The device includes an image panel, a backlight unit arranged at the rear side of the image panel, and a lenticular lens sheet arranged between the image panel and the backlight unit. The backlight unit includes a plurality of segment light sources for a left eye vision range which emit a light for a left eye vision range, and a plurality of segment light sources for a right eye vision range which emit a light for a right eye vision range. The segment light sources for the left eye vision range and the segment light sources for the right eye vision range are alternately arranged to form a surface light source. The lenticular lens sheet includes a plurality of semi-cylindrical lenses arranged in a direction perpendicular to a viewing direction of both eyes of a viewer. | 12-25-2008 |
20090002481 | METHOD AND APPARATUS FOR GENERATING STEREOSCOPIC IMAGE BITSTREAM USING BLOCK INTERLEAVED METHOD - Provided are a method and apparatus for generating a stereoscopic image bitstream. The method includes dividing a base view image and an additional view image into blocks having a predetermined size, generating a combined image by combining the blocks of the base view image and the blocks of the additional view image, recording the combined image in a payload area of the stereoscopic image bitstream, and recording block combination pattern information about a pattern of arranging the blocks of the base view image and the additional view image in the combined image, in a header area of the stereoscopic image bitstream. | 01-01-2009 |
20090002819 | MULTIVIEW AUTOSTEREOSCOPIC DISPLAY DEVICE AND MULTIVIEW AUTOSTEREOSCOPIC DISPLAY METHOD - A method and apparatus for displaying a multiview autostereoscopic image are provided. The apparatus, for displaying an autostereoscopic image, includes: a light source unit; and a display panel which displays an image by modulating light from the light source unit and having a plurality of pixel groups, wherein each of the pixel groups comprises a plurality of whole pixels and at least one fraction pixel, and in each of the whole pixels and the fraction pixel, image information of a viewpoint different from each other is displayed. | 01-01-2009 |
20090004941 | Bio-disintegratable board comprising polyactic acid conjugate fiber and natural fiber and its preparation method - The present invention relates to a biodegradable board comprising laminates of nonwoven fabric, which comprises natural fiber and a sheath-core type composite fiber having double layers of inner part and surface layer and its preparation method, and particularly to a biodegradable board comprising at least two layers of nonwoven fabric, which comprises natural fiber and sheath-core type composite fiber comprising biodegradable polylactic acid as a sheath component and resins such as polyethyleneterephthalate, polypropylene and polyethylene as a core component, and its preparation method. | 01-01-2009 |
20090009508 | APPARATUS AND METHOD FOR DRIVING 2D/3D SWITCHABLE DISPLAY - Provided are an apparatus and method for driving a 2-dimensional (2D)/3-dimensional (3D) switchable display for improving the quality of image. The apparatus for driving a 2D/3D switchable display includes: an image mode determination unit determining whether input image signals of continuous frames are in a 2D mode or 3D mode; and an over-driving control unit over-driving the input image signal of a current differently according to the determined image mode. According to the apparatus and method, the response time in each of the 2D mode and the 3D mode can be increased, while motion blur and cross-talk effects can be decreased, thereby improving the quality of image. | 01-08-2009 |
20090015662 | METHOD AND APPARATUS FOR ENCODING AND DECODING STEREOSCOPIC IMAGE FORMAT INCLUDING BOTH INFORMATION OF BASE VIEW IMAGE AND INFORMATION OF ADDITIONAL VIEW IMAGE - Provided are a method and apparatus for encoding and decoding a stereoscopic image format. The method includes generating a combined image by combining a base view image and an additional view image, generating a depth map between the base view image and the additional view image, generating a first YUV format using the combined image, and generating a second YUV format using the depth map. | 01-15-2009 |
20090040295 | METHOD AND APPARATUS FOR REPRODUCING STEREOSCOPIC IMAGE USING DEPTH CONTROL - A method and apparatus for reproducing a stereoscopic image are provided. The method includes generating information about parallax between a left-eye image and a right-eye image of objects included in the stereoscopic image based on a stereo camera parameter of the stereoscopic image, controlling the depth of the objects in the stereoscopic image based on the generated information, and reproducing the stereoscopic image based on the controlled depth. Accordingly, the stereoscopic image can be reproduced while minimizing the eye fatigue of a viewer. | 02-12-2009 |
20090046142 | AUTO STEREOSCOPIC DISPLAY IMPROVING BRIGHTNESS - 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. | 02-19-2009 |
20090046214 | 2D/3D CONVERTIBLE DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - A 2D/3D convertible display apparatus and a method of driving the same are provided. The 2D/3D convertible display apparatus includes a liquid crystal display panel, a polarizing panel changing the direction of polarization of an incident light beam according to a signal applied thereto, a panel driver applying a driving signal to the liquid crystal display panel when receiving a vertical synchronization signal and applying a driving signal to the polarizing panel when receiving a stereo synchronization signal, and a synchronization signal generator generating the stereo synchronization signal to allow the panel driver to apply the driving signal to the polarizing panel in both 2D and 3D modes. Accordingly, the driving signal is applied to the polarizing panel in the 2D mode to solve a problem that the polarizing panel is off to cause a defective image to be displayed when the driving signal is not applied to the polarizing panel in the 2D mode. | 02-19-2009 |
20090092311 | METHOD AND APPARATUS FOR RECEIVING MULTIVIEW CAMERA PARAMETERS FOR STEREOSCOPIC IMAGE, AND METHOD AND APPARATUS FOR TRANSMITTING MULTIVIEW CAMERA PARAMETERS FOR STEREOSCOPIC IMAGE - Provided is a method of receiving multiview camera parameters for a stereoscopic image. The method includes: extracting multiview camera parameter information for a predetermined data section from a received stereoscopic image data stream; extracting matrix information including at least one of translation matrix information and rotation matrix information for the predetermined data section from the multiview camera parameter information; and restoring coordinate systems of multiview cameras by using the extracted matrix information. | 04-09-2009 |
20090092335 | METHOD AND APPARATUS FOR RECEIVING AND GENERATING IMAGE DATA STREAM INCLUDING PARAMETERS FOR DISPLAYING LOCAL THREE DIMENSIONAL IMAGE - Provided are a method and apparatus for receiving and generating an image data stream including a three dimensional (3D) image. The method of receiving an image data stream includes receiving an image data stream including at least one of two dimensional (2D) and 3D image data periods; extracting local 3D image parameters, which are parameters of each image data period, from the image data stream; and restoring at least one of 2D and 3D images by using the local 3D image parameters. In the method, each 3D image is composed of at least one of a base image and an additional image, and the local 3D image parameters include stereoscopic arrangement order information representing an arrangement order of the base image and additional image of the 3D image. | 04-09-2009 |
20090096863 | METHOD AND APPARATUS FOR REDUCING FATIGUE RESULTING FROM VIEWING THREE-DIMENSIONAL IMAGE DISPLAY, AND METHOD AND APPARATUS FOR GENERATING DATA STREAM OF LOW VISUAL FATIGUE THREE-DIMENSIONAL IMAGE - Provided is a method of reducing fatigue resulting from viewing a three-dimensional (3D) image display. The method includes: obtaining low visual fatigue parameter information on a frame section including at least one frame of a received 3D image; obtaining disparity vector information on each frame of the 3D image; and determining a disparity minimum limit value and a disparity maximum limit value with respect to the 3D image. | 04-16-2009 |
20090160932 | METHOD AND APPARATUS FOR GENERATING MULTIVIEW IMAGE DATA STREAM AND METHOD AND APPARATUS FOR DECODING THE SAME - Provided is a method and apparatus for generating a multi-view image data stream, the method including: recording multi-view image data onto the multi-view image data stream; recording onto the multi-view image data stream a multi-view image parameter recording parameter indicating whether a multi-view image parameter with regard to the multi-view image data is to be recorded onto the multi-view image data stream; and determining whether the multi-view image parameter is to be recorded onto the multi-view image data stream based on a value of the multi-view image data parameter recording parameter. | 06-25-2009 |
20090195640 | METHOD AND APPARATUS FOR GENERATING STEREOSCOPIC IMAGE DATA STREAM FOR TEMPORALLY PARTIAL THREE-DIMENSIONAL (3D) DATA, AND METHOD AND APPARATUS FOR DISPLAYING TEMPORALLY PARTIAL 3D DATA OF STEREOSCOPIC IMAGE - Provided is a method of decoding a stereoscopic image data stream. In the method, a plurality of monoscopic image data regions are determined from among image data regions of a stereoscopic image data stream; a composition time stamp (CTS) of each of the monoscopic image data regions is extracted; and, if there are colliding image data regions having the same CTS from among the monoscopic image data regions, monoscopic image data is extracted from a monoscopic image data region of a main stream of the colliding image data regions. | 08-06-2009 |
20090201289 | METHOD AND APPARATUS FOR INPUTTING THREE-DIMENSIONAL LOCATION - Provided are a method and apparatus for inputting a three-dimensional (3D) location. The method determines whether a control signal for moving a pointer existing at a point in a two-dimensional (2D) coordinate plane is a 3D movement signal for moving the pointer into a 3D space; and based on a result of the determination, the method selectively moves the pointer to a point in the 3D space existing in a direction perpendicular to the 2D coordinate plane, according to the control signal. | 08-13-2009 |
20090201362 | AUTOSTEREOSCOPIC DISPLAY SYSTEM - 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. | 08-13-2009 |
20090207238 | METHOD AND APPARATUS FOR DETERMINING VIEW OF STEREOSCOPIC IMAGE FOR STEREO SYNCHRONIZATION - Provided is a method and apparatus for determining stereo views of a stereoscopic image. The method includes: selecting a pair of first and second images from a pair of frames of the stereoscopic image, the pair of frames including a base view image and an additional view image. The method further includes determining which of the first image and the second image is the base view image and which of the first image and the second image is the additional view image based on a parallax between the pair of first and second images. | 08-20-2009 |
20090219282 | METHOD AND APPARATUS FOR ENCODING DATASTREAM INCLUDING ADDITIONAL INFORMATION ON MULTIVIEW IMAGE AND METHOD AND APPARATUS FOR DECODING DATASTREAM BY USING THE SAME - Provided are a method and apparatus for encoding and decoding a datastream into which multiview image information is inserted. The method of decoding a multiview image datastream includes extracting multiview image information including information on at least one view image of a multiview image, from at least one elementary stream of the multiview image datastream; extracting a multiview image parameter regarding the multiview image based on the number of elementary streams and a correlation between view images of the multiview image; and restoring the multiview image by using the extracted multiview image parameter and the extracted multiview image information. | 09-03-2009 |
20090295907 | METHOD AND APPARATUS FOR GENERATING STEREOSCOPIC IMAGE DATA STREAM BY USING CAMERA PARAMETER, AND METHOD AND APPARATUS FOR RESTORING STEREOSCOPIC IMAGE BY USING CAMERA PARAMETER - Provided are a method and apparatus for encoding and decoding a stereoscopic image. A stereoscopic image restoring method includes parsing a received data stream into image data of a stereoscopic image and information regarding the stereoscopic image; extracting a camera parameter depending on individual characteristics of each of one or more cameras which have captured the stereoscopic image; and decoding and restoring the image data of the stereoscopic image. | 12-03-2009 |
20100039428 | METHOD AND APPARATUS FOR DETERMINING TWO- OR THREE-DIMENSIONAL DISPLAY MODE OF IMAGE SEQUENCE - A method of determining a two-dimensional (2D) or three-dimensional (3D) display mode is provided. An image sequence is received. Whether a current image included in the image sequence is a 2D or 3D image is determined. Based on a result of the determination, a 2D or 3D display mode for the image sequence is determined. | 02-18-2010 |
20100039573 | BARRIER PANEL DEVICE FOR 3D IMAGE REPRODUCTION, AND METHOD OF DRIVING SAME - Provided is a method of driving a barrier panel device. Segment driving voltages are controlled to be applied to a plurality of segments of a first electrode of a barrier panel based on a display direction of an image signal displayed on an image display panel of an apparatus for reproducing a 3D image. An odd barrier driving voltage is controlled to be commonly applied to odd numbered barriers of a plurality of barriers of a second electrode of the barrier panel. An even barrier driving voltage is controlled to be commonly applied to even numbered barriers of the plurality of barriers. The segment driving voltage, the odd barrier driving voltages, and the even barrier driving voltages are synchronized. | 02-18-2010 |
20120002006 | METHOD AND APPARATUS FOR ENCODING/DECODING VIDEO DATA TO IMPLEMENT LOCAL THREE-DIMENSIONAL VIDEO - Provided are a method and apparatus for encoding/decoding video data. The video data decoding method includes decoding a first video stream to generate 2D video data for two-dimensionally displaying video content and decoding a second video stream to generate 3D video data for three-dimensionally displaying at least one part of the display section of the video content. | 01-05-2012 |
20130002665 | HIGH RESOLUTION AUTOSTEREOSCOPIC DISPLAY APPARATUS WITH INTERLACED IMAGE - 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. | 01-03-2013 |
20130147796 | METHOD AND APPARATUS FOR REDUCING FATIGUE RESULTING FROM VIEWING THREE-DIMENSIONAL IMAGE DISPLAY, AND METHOD AND APPARATUS FOR GENERATING DATA STREAM OF LOW VISUAL FATIGUE THREE-DIMENSIONAL IMAGE - Provided is a method of reducing fatigue resulting from viewing a three-dimensional (3D) image display. The method includes: obtaining low visual fatigue parameter information on a frame section including at least one frame of a received 3D image; obtaining disparity vector information on each frame of the 3D image; and determining a disparity minimum limit value and a disparity maximum limit value with respect to the 3D image. | 06-13-2013 |