Patents by Inventor Moon Hwan Im
Moon Hwan Im 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: 8704744Abstract: Methods are disclosed to render image data over time. In one embodiment, a mapping from image data values to first and second sets of subpixels in a plurality of output frames uses brightness versus viewing angle performance measures to reduce color error when the image is viewed on the display panel at an off-normal viewing angle. In another embodiment, temporal subpixel rendering is used to improve the viewing angle in LCD displays or to improve subpixel rendering in other display technologies.Type: GrantFiled: February 8, 2013Date of Patent: April 22, 2014Assignee: Samsung Display Co., Ltd.Inventors: Moon Hwan Im, Thomas Lloyd Credelle, Matthew Osbourne Schlegel
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Patent number: 8378947Abstract: Methods are disclosed to render image data over time. In one embodiment, a mapping from image data values to first and second sets of subpixels in a plurality of output frames uses brightness versus viewing angle performance measures to reduce color error when the image is viewed on the display panel at an off-normal viewing angle. In another embodiment, temporal subpixel rendering is used to improve the viewing angle in LCD displays or to improve subpixel rendering in other display technologies.Type: GrantFiled: August 7, 2006Date of Patent: February 19, 2013Assignee: Samsung Display Co., Ltd.Inventors: Moon Hwan Im, Thomas Lloyd Credelle, Mathew Osborne Schlegel
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Patent number: 8228357Abstract: A display system (110) has a subpixel array (120) and a light source (140). In normal mode, image data (164) are processed by the display system to generate subpixel values (174) for the subpixels (130) and to generate a light source control value (BL) for the light source (140). In bypass mode suitable for testing new types of image-data processing, the subpixel values and the light source control value are generated by an external system (210) and are provided to the display system which is operated in bypass mode. The light source control value is not provided separately from the subpixel values but is encoded into some bits of the subpixel values for compatibility with older interfaces. The light source control value is encoded into the subpixel values' MSBs in case the subpixel values could be truncated. Other features are also provided.Type: GrantFiled: July 29, 2009Date of Patent: July 24, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Moon-Hwan Im, Seok-Jin Han, Sarah Sunyoung Hwang, Bai-Shuh Hsu
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Patent number: 8159511Abstract: Sub-pixel rendering with gamma adjustment allows the luminance for the sub-pixel arrangement to match the non-linear gamma response of the human eye's luminance channel, while the chrominance can match the linear response of the human eye's chrominance channels. The gamma correction allows the sub-pixel rendering to operate independently of the actual gamma of a display device. The sub-pixel rendering techniques with gamma adjustment may be optimized for the gamma transfer curve of a display device in order to improve response time, dot inversion balance, and contrast.Type: GrantFiled: June 28, 2010Date of Patent: April 17, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Candice Hellen Brown Elliott, Seok Jin Han, Moon Hwan Im, In Chul Baek, Michael Francis Higgins, Paul Higgins
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Publication number: 20110157217Abstract: Sub-pixel rendering with gamma adjustment allows the luminance for the sub-pixel arrangement to match the non-linear gamma response of the human eye's luminance channel, while the chrominance can match the linear response of the human eye's chrominance channels. The gamma correction allows the sub-pixel rendering to operate independently of the actual gamma of a display device. The sub-pixel rendering techniques with gamma adjustment may be optimized for the gamma transfer curve of a display device in order to improve response time, dot inversion balance, and contrast.Type: ApplicationFiled: June 28, 2010Publication date: June 30, 2011Inventors: Candice Hellen BROWN ELLIOTT, Seok Jin Han, Moon Hwan Im, In Chul Baek, Michael Francis Higgins, Paul Higgins
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Patent number: 7911487Abstract: Sub-pixel rendering with gamma adjustment allows the luminance of the sub-pixel arrangement to match the non-linear gamma response of the human eye's luminance channel. For each of a subset of input sampled data indicating a region of an input image, a gamma-adjusted data value is generated for each input image data value in the subset using a local average of at least two input image data values. A sub-pixel rendering operation uses the subset of gamma-adjusted data values and the subset of input image data values to produce an output data value for each sub-pixel element on the display panel. A plurality of output data values collectively indicates an output image. The gamma adjustment allows the sub-pixel rendering to operate independently of the actual gamma of a display device. The sub-pixel rendering techniques with gamma adjustment may improve image contrast in high spatial frequency portions of an image.Type: GrantFiled: October 13, 2009Date of Patent: March 22, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Candice Helen Brown Elliott, Seok Jin Han, Moon Hwan Im, In Chul Baek, Michael Francis Higgins, Paul Higgins
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Publication number: 20110025733Abstract: A display system (110) has a subpixel array (120) and a light source (140). In normal mode, image data (164) are processed by the display system to generate subpixel values (174) for the subpixels (130) and to generate a light source control value (BL) for the light source (140). In bypass mode suitable for testing new types of image-data processing, the subpixel values and the light source control value are generated by an external system (210) and are provided to the display system which is operated in bypass mode. The light source control value is not provided separately from the subpixel values but is encoded into some bits of the subpixel values for compatibility with older interfaces. The light source control value is encoded into the subpixel values' MSBs in case the subpixel values could be truncated. Other features are also provided.Type: ApplicationFiled: July 29, 2009Publication date: February 3, 2011Inventors: Moon-Hwan IM, Seok Jin HAN, Sarah Sunyoung HWANG, Bai-Shuh HSU
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Patent number: 7825921Abstract: The present application discloses a number of embodiments for the mapping of input image data onto display panels in which the subpixel data format being input may differ from the subpixel data format suitable for the display panel. Systems and methods are disclosed to map input image data onto panels with different ordering of subpixel data that the input, different number of subpixel data sets or different number of color primaries that the input image data.Type: GrantFiled: April 9, 2004Date of Patent: November 2, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Seok Jin Han, Bai-Shuh Hsu, Moon Hwan Im
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Publication number: 20100026709Abstract: Sub-pixel rendering with gamma adjustment allows the luminance of the sub-pixel arrangement to match the non-linear gamma response of the human eye's luminance channel. For each of a subset of input sampled data indicating a region of an input image, a gamma-adjusted data value is generated for each input image data value in the subset using a local average of at least two input image data values. A sub-pixel rendering operation uses the subset of gamma-adjusted data values and the subset of input image data values to produce an output data value for each sub-pixel element on the display panel. A plurality of output data values collectively indicates an output image. The gamma adjustment allows the sub-pixel rendering to operate independently of the actual gamma of a display device. The sub-pixel rendering techniques with gamma adjustment may improve image contrast in high spatial frequency portions of an image.Type: ApplicationFiled: October 13, 2009Publication date: February 4, 2010Inventors: Candice Hellen Brown Elliott, Seok Jin Han, Moon Hwan Im, In Chul Baek, Michael Francis Higgins, Paul Higgins
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Patent number: 7283142Abstract: A color display having horizontal sub-pixel arrangements and layouts is disclosed. The display can include a plurality of a sub-pixel group. The sub-pixel group can have a plurality of sub-pixels wherein each sub-pixel has a height along a vertical axis and a width along a horizontal axis. The width of each sub-pixel is greater in length than its height in the sub-pixel group. The display also includes a column driver coupled to each sub-pixel in a column and a row driver coupled to each sub-pixel in a row of the sub-pixel group. Each sub-pixel in the sub-pixel group is coupled to the row driver along the width of the sub-pixel.Type: GrantFiled: October 22, 2002Date of Patent: October 16, 2007Assignee: Clairvoyante, Inc.Inventors: Thomas Lloyd Credelle, Candice Hellen Brown Elliott, Moon Hwan Im
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Publication number: 20070206013Abstract: Sub-pixel rendering with gamma adjustment allows the luminance of the sub-pixel arrangement to match the non-linear gamma response of the human eye's luminance channel. For each of a subset of input sampled data indicating a region of an input image, a gamma-adjusted data value is generated for each input image data value in the subset using a local average of at least two input image data values. A sub-pixel rendering operation uses the subset of gamma-adjusted data values and the subset of input image data values to produce an output data value for each sub-pixel element on the display panel. A plurality of output data values collectively indicates an output image. The gamma adjustment allows the sub-pixel rendering to operate independently of the actual gamma of a display device. The sub-pixel rendering techniques with gamma adjustment may improve image contrast in high spatial frequency portions of an image.Type: ApplicationFiled: May 11, 2007Publication date: September 6, 2007Applicant: CLAIRVOYANTE, INCInventors: Candice Brown Elliott, Seok Jin Han, Moon Hwan Im, In Chul Baek, Michael Higgins, Paul Higgins
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Patent number: 7248271Abstract: System and methods are disclosed for improving the off-normal axis viewing angle by applying different filters if one colored sub-pixel data is driven close to 100% luminance while other colored sub-pixel data is driven close to 50% luminance values. Systems and methods for adjusting the viewing characteristics of the display system are also disclosed.Type: GrantFiled: January 31, 2005Date of Patent: July 24, 2007Assignee: Clairvoyante, IncInventors: Thomas Lloyd Credelle, Moon Hwan Im
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Patent number: 7221381Abstract: The gamma adjustment allows the luminance for the sub-pixel arrangement to match the non-linear gamma response of the human eye's luminance channel, while the chrominance can match the linear response of the human eye's chrominance channels. The gamma correction allows the algorithms to operate independently of the actual gamma of a display device. The sub-pixel rendering techniques disclosed with gamma adjustment can be optimized for a display device gamma to improve response time, dot inversion balance, and contrast because gamma correction and compensation of the sub-pixel rendering algorithm provides the desired gamma through sub-pixel rendering. These techniques can adhere to any specified gamma transfer curve.Type: GrantFiled: May 17, 2002Date of Patent: May 22, 2007Assignee: Clairvoyante, IncInventors: Candice Hellen Brown Elliott, Seok Jin Han, Moon Hwan Im, In Chul Baek, Michael Francis Higgins, Paul Higgins
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Publication number: 20070052721Abstract: Methods are disclosed to render image data over time. In one embodiment, a mapping from image data values to first and second sets of subpixels in a plurality of output frames uses brightness versus viewing angle performance measures to reduce color error when the image is viewed on the display panel at an off-normal viewing angle. In another embodiment, temporal subpixel rendering is used to improve the viewing angle in LCD displays or to improve subpixel rendering in other display technologies.Type: ApplicationFiled: August 7, 2006Publication date: March 8, 2007Applicant: Clairvoyante, IncInventors: Moon Hwan Im, Thomas Credelle, Matthew Schlegel
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Patent number: 6917368Abstract: System and methods are disclosed for improving the off-normal axis viewing angle by applying different filters if one colored sub-pixel data is driven close to 100% luminance while other colored sub-pixel data is driven close to 50% luminance values. Systems and methods for adjusting the viewing characteristics of the display system are also disclosed.Type: GrantFiled: March 4, 2003Date of Patent: July 12, 2005Assignee: Clairvoyante, Inc.Inventors: Thomas Lloyd Credelle, Moon Hwan Im
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Publication number: 20040196302Abstract: Systems and methods are disclosed to subpixel render source image data over time. Temporal subpixel rendering may be used to improve viewing angle in LCD displays or to improve subpixel rendering in other display technologies.Type: ApplicationFiled: March 4, 2003Publication date: October 7, 2004Inventors: Moon Hwan Im, Thomas Lloyd Credelle, Matthew Osborne Schlegel
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Publication number: 20040174375Abstract: System and methods are disclosed for improving the off-normal axis viewing angle by applying different filters if one colored sub-pixel data is driven close to 100% luminance while other colored sub-pixel data is driven close to 50% luminance values. Systems and methods for adjusting the viewing characteristics of the display system are also disclosed.Type: ApplicationFiled: March 4, 2003Publication date: September 9, 2004Inventors: Thomas Lloyd Credelle, Moon Hwan Im
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Publication number: 20030117423Abstract: Various embodiments of three-color sub-pixel arrangements and architectures for display and the like are herein disclosed.Type: ApplicationFiled: October 22, 2002Publication date: June 26, 2003Inventors: Candice Hellen Brown Elliott, Thomas Lloyd Credelle, Moon Hwan Im
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Publication number: 20030103058Abstract: Thus, methods and systems for sub-pixel rendering with gamma adjustment are disclosed. The gamma adjustment allows the luminance for the sub-pixel arrangement to match the non-linear gamma response of the human eye's luminance channel, while the chrominance can match the linear response of the human eye's chrominance channels. The gamma correction allows the algorithms to operate independently of the actual gamma of a display device. The sub-pixel rendering techniques disclosed with gamma adjustment can be optimized for a display device gamma to improve response time, dot inversion balance, and contrast because gamma correction and compensation of the sub-pixel rendering algorithm provides the desired gamma through sub-pixel rendering. These techniques can adhere to any specified gamma transfer curve.Type: ApplicationFiled: May 17, 2002Publication date: June 5, 2003Inventors: Candice Hellen Brown Elliott, Seok Jin Han, Moon Hwan Im, In Chul Baek, Michael Francis Higgins, Paul Higgins
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Publication number: 20030090581Abstract: A color display having horizontal sub-pizel arrangements and layouts is disclosed. The display can include a plurality of a sub-pixel group. The sub-pixel group can have a plurality of sub-pixels wherein each sub-pixel has a height along a vertical axis and a width along a horizontal axis. The width of each sub-pixel is greater in length than its height in the sub-pixel group. The display also includes a column driver coupled to each sub-pixel in a column and a row driver coupled to each sub-pixel in a row of the sub-pixel group. Each sub-pixel in the sub-pixel group is coupled to the row driver along the width of the sub-pixel.Type: ApplicationFiled: October 22, 2002Publication date: May 15, 2003Inventors: Thomas Lloyd Credelle, Candice Hellen Brown Elliott, Moon Hwan IM