Patents by Inventor Dong-Choon Hwang
Dong-Choon Hwang 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: 10321118Abstract: A 3D display device includes: a data processor configured to generate at least one frame by combining a left-eye image and a right-eye image; a panel including pixels, each of the pixels including three sub pixels; a barrier configured to form a light blocking region and a light transmitting region on the panel on a basis of two sub pixel units; and a controller configured to control the data processor to generate the at least one frame by placing the left-eye image and the right-eye image alternately on the basis of two sub pixels, and to control the panel to display at least one frame generated by the data processor.Type: GrantFiled: January 4, 2012Date of Patent: June 11, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang-moo Park, Ki-hyung Kang, Jung-hoon Yoon, Dong-choon Hwang
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Patent number: 9716877Abstract: A 3D display apparatus is provided, which includes a display panel which displays a multi-viewpoint image, a barrier arranged on one side of the display panel unit, and a controller which controls the barrier to alternately form light transmitting areas and light blocking areas. The barrier includes a liquid crystal layer, a plurality of upper electrodes arranged to be spaced apart from one another on an upper surface of the liquid crystal layer, and a plurality of lower electrodes arranged to be spaced apart from one another on a lower surface of the liquid crystal layer.Type: GrantFiled: September 30, 2011Date of Patent: July 25, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ki-Hyung Kang, Dong-Choon Hwang, Sang-Moo Park, Jung-Hoon Yoon, Soo-Bae Moon
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Patent number: 9177411Abstract: A display apparatus includes a display panel which includes a plurality of sub pixels each outputting a sub pixel value of R, G, or B, a renderer which renders a multi-view image to be outputted by the display, and a controller which determines a rendering pitch according to a viewing distance of a user, and controls the renderer so that each of at least some of the plurality of sub pixels outputs a combined sub pixel value corresponding to a combination of sub pixel values corresponding to each of the plurality of views of the multi-view image according to the determined rendering pitch.Type: GrantFiled: June 7, 2013Date of Patent: November 3, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong-choon Hwang, Ki-hyung Kang, Jung-hoon Yoon
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Publication number: 20150271480Abstract: A display apparatus is provided. The display apparatus includes an image panel comprising a plurality of pixels and configured to display an image frame in which multi-view images are disposed according to a preset arrangement pattern, a visual field separator disposed on a front surface of the image panel and configured to provide different optical views to respective viewing zones, and a controller configured to control a driving state of the visual field separator to sequentially display first and second image frames each of which comprises different multi-view images during one image frame period and to shift a viewing zone provided for displaying the second image frame by a preset distance based on a viewing zone provided for displaying the first image frame.Type: ApplicationFiled: March 23, 2015Publication date: September 24, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: In-hak NA, Dong-choon HWANG, Do-young KIM, Jin-sung KIM, Hyun-jung KIM, Jun-ho KOH
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Patent number: 8872904Abstract: A display apparatus is provided. The display apparatus includes: a display panel configured to include a plurality of pixels including a plurality of sub pixels and display an image frame; a visual field divider configured to be disposed on a front surface of the display panel; and a controller configured to render and display a first image frame to display a first view image in at least some of the plurality of sub pixels and a second image frame so that a second view image is shifted and displayed based on a position in which the first view image is displayed in the at least some of the sub pixels based on a distance between the display panel and the visual field divider.Type: GrantFiled: February 19, 2014Date of Patent: October 28, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-choon Hwang, Farid Mukhtarov, Seon-deok Hwang
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Publication number: 20140192044Abstract: A display apparatus includes a display panel which includes a plurality of sub pixels each outputting a sub pixel value of R, G, or B, a renderer which renders a multi-view image to be outputted by the display, and a controller which determines a rendering pitch according to a viewing distance of a user, and controls the renderer so that each of at least some of the plurality of sub pixels outputs a combined sub pixel value corresponding to a combination of sub pixel values corresponding to each of the plurality of views of the multi-view image according to the determined rendering pitch.Type: ApplicationFiled: June 7, 2013Publication date: July 10, 2014Inventors: Dong-choon HWANG, Ki-hyung KANG, Jung-hoon YOON
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Publication number: 20140192172Abstract: A 3D display apparatus is provided, which includes a display panel which displays a multi-viewpoint image, a barrier arranged on one side of the display panel unit, and a controller which controls the barrier to alternately form light transmitting areas and light blocking areas. The barrier includes a liquid crystal layer, a plurality of upper electrodes arranged to be spaced apart from one another on an upper surface of the liquid crystal layer, and a plurality of lower electrodes arranged to be spaced apart from one another on a lower surface of the liquid crystal layer.Type: ApplicationFiled: September 30, 2011Publication date: July 10, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ki-Hyung Kang, Dong-Choon Hwang, Sang-Moo Park, Jung-Hoon Yoon, Soo-Bae Moon
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Patent number: 8754932Abstract: An image display method includes alternately receiving left and right images of a 3D image; and turning on a backlight such that the backlight is on only in periods when the left images are displayed or only in periods when the right images are displayed. A method of controlling shutter glasses separately for left and right images of a three-dimensional (3D) image includes alternately receiving the left and right images of the 3D image; and opening two shutters of the shutter glasses only in periods when the left images are received or only in periods when the right images are received.Type: GrantFiled: December 20, 2010Date of Patent: June 17, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-hoon Jung, Sang-moo Park, Dae-sik Kim, Dong-choon Hwang
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Publication number: 20130286168Abstract: A 3D display device includes: a data processor configured to generate at least one frame by combining a left-eye image and a right-eye image; a panel including pixels, each of the pixels including three sub pixels; a barrier configured to form a light blocking region and a light transmitting region on the panel on a basis of two sub pixel units; and a controller configured to control the data processor to generate the at least one frame by placing the left-eye image and the right-eye image alternately on the basis of two sub pixels, and to control the panel to display at least one frame generated by the data processor.Type: ApplicationFiled: January 4, 2012Publication date: October 31, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang-moo Park, Ki-hyung Kang, Jung-hoon Yoon, Dong-choon Hwang
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Publication number: 20110157165Abstract: An image display method includes alternately receiving left and right images of a 3D image; and turning on a backlight such that the backlight is on only in periods when the left images are displayed or only in periods when the right images are displayed. A method of controlling shutter glasses separately for left and right images of a three-dimensional (3D) image includes alternately receiving the left and right images of the 3D image; and opening two shutters of the shutter glasses only in periods when the left images are received or only in periods when the right images are received.Type: ApplicationFiled: December 20, 2010Publication date: June 30, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong-hoon JUNG, Sang-moo PARK, Dae-sik KIM, Dong-choon HWANG
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Patent number: 7936899Abstract: An apparatus and method for watermarking that uses elemental images of an integrated image having three-dimensional information as a watermark are disclosed. The watermarking apparatus in accordance with an embodiment of the present invention includes i) a computational pickup unit, which picks up an elemental image watermark computationally by placing an object three-dimensionally, ii) an embedding process unit, which embeds into a two-dimensional image the elemental image watermark obtained by the computational pickup unit, iii) an extraction process unit, which extracts the elemental image watermark by receiving through a transmission channel the watermarked two-dimensional image embedded by the embedding process unit, and iv) a computational reconstruction unit, which computationally reconstructs the elemental image watermark extracted by the extraction process unit to a distance-based image.Type: GrantFiled: July 19, 2007Date of Patent: May 3, 2011Assignee: Kwangwoon University Research Institute for Industry CooperationInventors: Eun-Soo Kim, Dong-Choon Hwang, Dong-Hak Shin
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Publication number: 20110050742Abstract: A backlight unit, a display apparatus, and a method of controlling the backlight unit are provided. The backlight unit includes an image depth information extraction unit configured to extract image depth information from an image signal and a brightness calculator configured to calculate brightnesses corresponding to the image depth information. The backlight unitimproves three-dimensional effects on an image by controlling the brightnesses of light emitting devices according to the brightnesses calculated to correspond to image depth.Type: ApplicationFiled: June 2, 2010Publication date: March 3, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ho-seop LEE, Dae-sik KIM, Dong-choon HWANG, Young-ji KO, Soo-bae MOON
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Publication number: 20080211737Abstract: A three-dimensional image display apparatus using an intermediate elemental image is disclosed. In one embodiment, the three-dimensional image display apparatus includes: i) an image input unit, generating a plurality of elemental images extracted from a three-dimensional object, the elemental images have different perspectives, ii) an image processing unit, generating an intermediate elemental image, using parallax information between the elemental images inputted from the image input unit and iii) an image reproduction unit, reproducing a three-dimensional image corresponding to the three-dimensional object, using the elemental image and the intermediate elemental image. With the three-dimensional image display apparatus, and the method thereof, using an intermediate elemental image in accordance with at least one embodiment of the present invention, a high-resolution three-dimensional image can be outputted.Type: ApplicationFiled: December 19, 2007Publication date: September 4, 2008Inventors: Eun-Soo Kim, Dong-Choon Hwang, Jae-Sung Park, Seung-Chool Kim, Dong-Hak Shin
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Publication number: 20080025564Abstract: An apparatus and method for watermarking that uses elemental images of an integrated image having three-dimensional information as a watermark are disclosed. The watermarking apparatus in accordance with an embodiment of the present invention includes i) a computational pickup unit, which picks up an elemental image watermark computationally by placing an object three-dimensionally, ii) an embedding process unit, which embeds into a two-dimensional image the elemental image watermark obtained by the computational pickup unit, iii) an extraction process unit, which extracts the elemental image watermark by receiving through a transmission channel the watermarked two-dimensional image embedded by the embedding process unit, and iv) a computational reconstruction unit, which computationally reconstructs the elemental image watermark extracted by the extraction process unit to a distance-based image.Type: ApplicationFiled: July 19, 2007Publication date: January 31, 2008Inventors: Eun-Soo Kim, Dong-Choon Hwang, Dong-Hak Shin