Patents by Inventor Don Gyou Lee
Don Gyou Lee 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: 9830858Abstract: Disclosed herein are a display panel capable of improving high-resolution expression ability and a display device having the same. The display panel includes a plurality of unit pixels, each of which includes first and second sub-pixels alternately arranged in the same vertical line and a third sub-pixel arranged in a different vertical line than the first and second sub-pixels, wherein, when a bright (or dark) image is realized on a dark (or bright) background image, the color of the third sub-pixel is realized at leftmost and rightmost portions of the bright (or dark) image.Type: GrantFiled: November 9, 2015Date of Patent: November 28, 2017Assignee: LG Display Co., Ltd.Inventors: Woong-Jin Seo, Don-Gyou Lee, Jun-Woo Jang, Tae-Yong Park
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Publication number: 20170004751Abstract: Disclosed herein are a display panel capable of improving high-resolution expression ability and a display device having the same. The display panel includes a plurality of unit pixels, each of which includes first and second sub-pixels alternately arranged in the same vertical line and a third sub-pixel arranged in a different vertical line than the first and second sub-pixels, wherein, when a bright (or dark) image is realized on a dark (or bright) background image, the color of the third sub-pixel is realized at leftmost and rightmost portions of the bright (or dark) image.Type: ApplicationFiled: November 9, 2015Publication date: January 5, 2017Inventors: Woong-Jin Seo, Don-Gyou Lee, Jun-Woo Jang, Tae-Yong Park
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Patent number: 8704880Abstract: An optical measuring apparatus and method for a stereoscopic display device are capable of measuring optical characteristics of the stereoscopic display device. The optical measuring apparatus includes a test image supplier for generating a 3D test signal, a 3D display for displaying left-eye image and/or right-eye image based on the 3D test signal supplied from the test image supplier, an image selection member for selectively transmitting the left-eye image and right-eye image to be displayed on the 3D display, and a light measuring device that measures luminance of the image transmitted via the image selection member and calculates 3D image crosstalk of the left eye image and the right eye image based on the measured luminance.Type: GrantFiled: December 27, 2010Date of Patent: April 22, 2014Assignee: LG Display Co., Ltd.Inventors: Kyong Ho Lim, Don Gyou Lee, Jae Hong Kim
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Patent number: 8194196Abstract: A liquid crystal display device and a fabricating method thereof for driving the liquid crystal display device using a magnetic field are disclosed. In the device and method, a current is applied to a first electrode in a first direction, and a current is applied to a second electrode in a second direction. A liquid crystal layer is driven with a magnetic field induced by the currents from the first and second electrodes modulating a light.Type: GrantFiled: December 23, 2004Date of Patent: June 5, 2012Assignee: LG Display Co., Ltd.Inventors: Don Gyou Lee, Jung Ho Kil, Do Yeon Kim
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Patent number: 8184077Abstract: A liquid crystal display device and a method for improving a color reproducibility thereof, detects a gray scale value in applied image information that reduces a color reproducibility of a liquid crystal display device by measuring a gray scale level of a color displayed on a liquid crystal display panel while increasing the gray scale value of the color, and storing a maximum value of the gray scale level is displayable prior to reducing the color reproducibility. The applied image information is compensated to prevent reduction in the color reproducibility.Type: GrantFiled: October 23, 2003Date of Patent: May 22, 2012Assignee: LG Display Co., LtdInventors: Don-Gyou Lee, Ki-Yon Song, Jung-Ho Kil
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Publication number: 20120105604Abstract: An optical measuring apparatus and method for a stereoscopic display device are capable of measuring optical characteristics of the stereoscopic display device. The optical measuring apparatus includes a test image supplier for generating a 3D test signal, a 3D display for displaying left-eye image and/or right-eye image based on the 3D test signal supplied from the test image supplier, an image selection member for selectively transmitting the left-eye image and right-eye image to be displayed on the 3D display, and a light measuring device that measures luminance of the image transmitted via the image selection member and calculates 3D image crosstalk of the left eye image and the right eye image based on the measured luminance.Type: ApplicationFiled: December 27, 2010Publication date: May 3, 2012Applicant: LG Display Co., Ltd.Inventors: Kyong Ho Lim, Don Gyou Lee, Jae Hong Kim
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Patent number: 7446749Abstract: The method and apparatus for measuring response time of liquid crystal includes controlling temperature of a liquid crystal display panel, generating a liquid crystal driving signal having a variable voltage level that is changed according to a response property of the liquid crystal display panel and a target voltage level, and supplying the liquid crystal driving signal to the liquid crystal display panel, detecting the response property corresponding to the liquid crystal driving signal, and adjusting the variable voltage level until the response property reaches a desired level and setting a modulated data substantially equal to the variable voltage level when the response property reaches the desired level, the modulated data based on temperatures being determined by changing the temperature of the liquid crystal display panel. Also, method and apparatus for driving a LCD device using the above-described method.Type: GrantFiled: June 24, 2004Date of Patent: November 4, 2008Assignee: LG.Philips LCD Co., Ltd.Inventors: Oh Hyun Lee, Don Gyou Lee, Jung Ho Kil
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Patent number: 7136056Abstract: An image quality analysis method and an image quality analysis system for a display device are provided. The image quality analysis method and image quality analysis system provides a quantitative determination of image quality for display devices, thereby providing an objective and fair evaluation criterion.Type: GrantFiled: December 31, 2002Date of Patent: November 14, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Don Gyou Lee, Il Ho Kim
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Patent number: 7079681Abstract: An image quality analysis method and an image quality analysis system for a display device are provided. The image quality analysis method for a display device includes the steps of outputting an image pattern for analysis of an image quality of the display device, dividing a screen display region to which the image pattern is output into a plurality of sub-regions, producing measurement data representing the image quality with respect to each of the plurality of sub-regions, arranging the produced measurement data as a time series, obtaining a fractal dimension exponent from the data as a time series, and evaluating the fractal dimension exponent as a level of uniformity of the image quality of the display device.Type: GrantFiled: December 31, 2002Date of Patent: July 18, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Don Gyou Lee, Jung Ho Kil, Ki Yeon Song, Moon Chul Jeong
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Patent number: 7072030Abstract: An optical sheet optimization method includes the steps of: extracting a statistic sample using transmissivity, haze data and luminance data of an optical diffusion sheet corresponding to the transmissivity and the haze data; making a regression model for the extracted statistic sample; calculating a regression coefficient to minimize an error term (residual) of the regression model and deriving a regression expression using the calculated regression coefficient; and predicting a luminance of the optical diffusion sheet due to changes of the transmissivity and the haze data using the derived regression expression.Type: GrantFiled: October 29, 2003Date of Patent: July 4, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Don Gyou Lee, Ki Yon Song, Soon Ho Lee, Jang Ryang Kim
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Publication number: 20040263450Abstract: The method and apparatus for measuring response time of liquid crystal includes controlling temperature of a liquid crystal display panel, generating a liquid crystal driving signal having a variable voltage level that is changed according to a response property of the liquid crystal display panel and a target voltage level, and supplying the liquid crystal driving signal to the liquid crystal display panel, detecting the response property corresponding to the liquid crystal driving signal, and adjusting the variable voltage level until the response property reaches a desired level and setting a modulated data substantially equal to the variable voltage level when the response property reaches the desired level, the modulated data based on temperatures being determined by changing the temperature of the liquid crystal display panel. Also, method and apparatus for driving a LCD device using the above-described method.Type: ApplicationFiled: June 24, 2004Publication date: December 30, 2004Applicant: LG Philips LCD Co., Ltd.Inventors: Oh Hyun Lee, Don Gyou Lee, Jung Ho Kil
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Publication number: 20040125362Abstract: An optical sheet optimization method includes the steps of: extracting a statistic sample using transmissivity, haze data and luminance data of an optical diffusion sheet corresponding to the transmissivity and the haze data; making a regression model for the extracted statistic sample; calculating a regression coefficient to minimize an error term (residual) of the regression model and deriving a regression expression using the calculated regression coefficient; and predicting a luminance of the optical diffusion sheet due to changes of the transmissivity and the haze data using the derived regression expression.Type: ApplicationFiled: October 29, 2003Publication date: July 1, 2004Applicant: LG.PHILIPS LCD CO., LTD.Inventors: Don Gyou Lee, Ki Yon Song, Soon Ho Lee, Jang Ryang Kim
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Publication number: 20040125063Abstract: A liquid crystal display device and a method for improving a color reproducibility thereof, detects a gray scale value in applied image information that reduces a color reproducibility of a liquid crystal display device by measuring a gray scale level of a color displayed on a liquid crystal display panel while increasing the gray scale value of the color, and storing a maximum value of the gray scale level is displayable prior to reducing the color reproducibility. The applied image information is compensated to prevent reduction in the color reproducibility.Type: ApplicationFiled: October 23, 2003Publication date: July 1, 2004Inventors: Don-Gyou Lee, Ki-Yon Song, Jung-Ho Kil
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Publication number: 20030214586Abstract: An image quality analysis method and an image quality analysis system for a display device are provided. The image quality analysis method and image quality analysis system provides a quantitative determination of image quality for display devices, thereby providing an objective and fair evaluation criterion.Type: ApplicationFiled: December 31, 2002Publication date: November 20, 2003Applicant: LG.PHILIPS LCD CO., LTD.Inventors: Don Gyou Lee, Il Ho Kim
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Publication number: 20030215131Abstract: An image quality analysis method and an image quality analysis system for a display device are provided. The image quality analysis method for a display device includes the steps of outputting an image pattern for analysis of an image quality of the display device, dividing a screen display region to which the image pattern is output into a plurality of sub-regions, producing measurement data representing the image quality with respect to each of the plurality of sub-regions, arranging the produced measurement data as a time series, obtaining a fractal dimension exponent from the data as a time series, and evaluating the fractal dimension exponent as a level of uniformity of the image quality of the display device.Type: ApplicationFiled: December 31, 2002Publication date: November 20, 2003Applicant: LG.Philips LCD Co., Ltd.Inventors: Don Gyou Lee, Jung Ho Kil, Ki Yeon Song, Moon Chul Jeong