Patents by Inventor Min-Tak Lee
Min-Tak 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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Publication number: 20170206821Abstract: A method of compensating for Mura in a display panel includes displaying a high gray-scale image and a low gray-scale image on a display panel. The displayed images are photographed to generate a high gray-scale luminance image and a low gray-scale luminance image. An ELA Mura for-measurement image having moiré-removed luminance values is generated by dividing luminance values of the low gray-scale luminance image by luminance values of the high gray-scale luminance image. One-dimensional average data is obtained from the ELA Mura for-measurement image. The one-dimensional average data is transformed into frequency-domain data. Target frequency-domain data having a maximum peak value is identified from the frequency-domain data. A direction, an intensity, and a frequency of the ELA Mura are obtained from the target frequency-domain data. A filter is determined based on the obtained information. The filter is applied to image data.Type: ApplicationFiled: December 22, 2016Publication date: July 20, 2017Inventors: MIN-TAK LEE, KYU-SEOK KIM, SOO-YOUNG KIM, YOUNG-NAM YUN, HYUN-KOO LEE
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Publication number: 20170162127Abstract: A display device includes an image controller that analyzes first image data to determine whether a same image is displayed for no less than a predetermined threshold time. The image controller sets a low grayscale region having grayscale values of no more than a predetermined threshold low grayscale value when the same image is displayed for no less than a threshold time. The image controller then receives second image data and transmits a control signal to allow a transistor hysteresis reset signal to be transmitted to pixels of the display in the low grayscale region. A data driver transmits the transistor hysteresis reset signal to the pixels in the low grayscale region based on the control signal.Type: ApplicationFiled: December 2, 2016Publication date: June 8, 2017Inventors: Jung Kook PARK, Ju Gon SEOK, Min Tak LEE, Sang Min LIM
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Patent number: 9613562Abstract: A display device includes a light sensor, a controller, a data driver, and a scan driver. The controller is configured to correct an input image signal based on an electrical signal output by the light sensor and an input image signal, the controller includes: a first color coordinate calculation unit configured to calculate a color coordinate of reflected light; a second color coordinate calculation unit configured to calculate a color coordinate of dark room output light for at least two grayscale value sections; a combination unit configured to combine the reflected light color coordinate and the dark room output light color coordinate together; and a gamma value setting unit configured to set a gamma value based on a deviation between the combination light color coordinate output by the combination unit and a reference color coordinate.Type: GrantFiled: September 17, 2014Date of Patent: April 4, 2017Assignee: Samsung Display Co., Ltd.Inventors: Min-Tak Lee, Da-Jeong Lee, Hyun-Koo Lee
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Publication number: 20160225349Abstract: A method of compensating an image of a display device is disclosed. In one aspect, the method includes obtaining a scroll speed of the image displayed in the display device that sequentially drives a plurality of pixels in a scanning direction from a first scan line to a second scan line. The method further includes shifting image data for the pixels by a shift amount, the shift amount being substantially proportional to the scroll speed and gradually increasing along the scanning direction.Type: ApplicationFiled: June 25, 2015Publication date: August 4, 2016Inventors: Min-Tak LEE, Jung-Kook Park
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Publication number: 20160204382Abstract: An organic light emitting display device includes an organic light emitting display panel including first to third pixels that emit light of different colors, a wavelength of a color light emitted from the third pixel being shorter than wavelengths of color lights emitted from the first and second pixels, a window on an upper portion of the display panel, and a light shielding pattern on the window, the light shielding pattern being adjacent to an outline of the third pixel.Type: ApplicationFiled: March 24, 2016Publication date: July 14, 2016Inventors: Min Tak LEE, Kyu Seok KIM
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Publication number: 20160155416Abstract: A display device includes: a display unit including pixels including a first color subpixel at a left upper end, a second color subpixel at a left lower end, and a third color subpixel at a right side; a data converter to convert first color, second color, and third color unit input data into first color, second color, and third color unit adapted data; and a driver to apply an image signal to the pixel based on the adapted data, the data converter generating unit adapted data using first unit input data of a target subpixel and second unit input data of another subpixel adjacent the target subpixel along a direction, the direction being: an up direction when the target subpixel is the first color subpixel; a down direction when the target subpixel is the second color subpixel; and a right direction when the target subpixel is the third color subpixel.Type: ApplicationFiled: April 30, 2015Publication date: June 2, 2016Inventor: Min-Tak Lee
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Patent number: 9299948Abstract: An organic light emitting display device includes an organic light emitting display panel including first to third pixels that emit light of different colors, a wavelength of a color light emitted from the third pixel being shorter than wavelengths of color lights emitted from the first and second pixels, a window on an upper portion of the display panel, and a light shielding pattern on the window, the light shielding pattern being adjacent to an outline of the third pixel.Type: GrantFiled: January 24, 2013Date of Patent: March 29, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Min Tak Lee, Kyu Seok Kim
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Patent number: 9247614Abstract: An organic light-emitting display device including a first organic light-emitting device including a first pixel electrode, a first organic emission layer (EML) for emitting white light, and an opposite electrode; a first color filter between an insulating layer and the first pixel electrode, and transmitting blue light; a second organic light-emitting device including a second pixel electrode, the first organic EML for emitting white light, and the opposite electrode; a second color filter between the insulating layer and the second pixel electrode, and transmitting green light; a third organic light-emitting device including a third pixel electrode, a second organic EML for emitting a mixture light including a red color and a blue color, and the opposite electrode; and a third color filter between the insulating layer and the third pixel electrode, and including a first region for transmitting red light and a second region for transmitting the mixture light.Type: GrantFiled: November 9, 2012Date of Patent: January 26, 2016Assignee: Samsung Display Co., Ltd.Inventors: Min-Tak Lee, Young-Nam Yun
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Publication number: 20150356903Abstract: An image display method is disclosed. In one aspect, the image display method includes receiving image data including a black region and a white region, determining a boundary between the black and white regions, determining a pixel to be corrected which is adjacent to the boundary, and determining a direction of the boundary and an arrangement of the black and white regions with respect to the boundary. The method also includes converting pixel data corresponding to the pixel into corrected pixel data based at least in part on the boundary direction and the arrangement and displaying images on a display device based at least in part on corrected image data including the corrected pixel data.Type: ApplicationFiled: December 3, 2014Publication date: December 10, 2015Inventor: Min-Tak Lee
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Publication number: 20150263771Abstract: A mobile radio receiver for a vehicle includes a tuner front-end section, an inter-vehicle communication port, and a data processing unit. The data processing unit is operably connected with the tuner front-end section and with the inter-vehicle communication port. The data processing unit has at least two pre-determined relationship data sets. In use, the inter-vehicle communication port receives a tuner front-end section parameter data pointer. The pre-determined relationship data sets are used to determine a set of tuner front-end section parameters based on the tuner front-end section parameter data pointer. The mobile radio receiver provides an operational mode, a parameter reception mode, a tuner parameter adjustment mode, and a tuner parameter application mode.Type: ApplicationFiled: January 25, 2012Publication date: September 17, 2015Inventors: Syaiful Bakhri, Stefan Bieger, Wei Ming Dan Chia, Brian Sunil Nicholas Fernandes, Min Tak Lee, Yinn Sinn Tang
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Publication number: 20150187258Abstract: A display device includes: a display unit configured to display an image; a camera spaced apart from the display unit and facing a front side of the display device; a photo sensor spaced apart from the camera and configured to sense ambient light incident on the front side of the display device; and a control unit coupled to the display unit, the camera, and the photo sensor. The control unit includes: a viewing angle determining unit configured to recognize a face of a user from an image photographed by the camera so as to determine a viewing angle of the user; a reflection intensity calculating unit configured to calculate intensity of reflected light based on intensity of symmetric light incident at an angle symmetric to the viewing angle; and a luminance compensation unit configured to compensate luminance of input video data in consideration of the intensity of the reflected light.Type: ApplicationFiled: October 9, 2014Publication date: July 2, 2015Inventor: Min-Tak Lee
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Publication number: 20150187094Abstract: A display device includes a light sensor, a controller, a data driver, and a scan driver. The controller is configured to correct an input image signal based on an electrical signal output by the light sensor and an input image signal, the controller includes: a first color coordinate calculation unit configured to calculate a color coordinate of reflected light; a second color coordinate calculation unit configured to calculate a color coordinate of dark room output light for at least two grayscale value sections; a combination unit configured to combine the reflected light color coordinate and the dark room output light color coordinate together; and a gamma value setting unit configured to set a gamma value based on a deviation between the combination light color coordinate output by the combination unit and a reference color coordinate.Type: ApplicationFiled: September 17, 2014Publication date: July 2, 2015Inventors: Min-Tak Lee, Da-Jeong Lee, Hyun-Koo Lee
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Patent number: 9042850Abstract: A mobile radio receiver for a vehicle includes a tuner front-end section, a location data port for receiving tuner location data, a sensor port for receiving sensor signal measurement data from at least one vehicle sensor, a tuner front-end section parameter server port for sending the tuner location data, the sensor signal measurement data for receiving a set of tuner front-end section parameter data, and a data processing unit. The data processing unit is operably connected to the tuner front-end section, the location data port, the sensor port, and the tuner front-end section parameter server port. The mobile radio receiver provides an operational mode, a checking mode, a tuner parameter retrieval mode, and a tuner parameter application mode.Type: GrantFiled: August 12, 2011Date of Patent: May 26, 2015Assignee: Continental Automotive GmbHInventors: Wei Ming Dan Chia, Brian Sunil Nicholas Fernandes, Yinn Sinn Tang, Min Tak Lee, Ye Yuan, Syaiful Bakhri
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Publication number: 20150123986Abstract: A color gamut controlling device and a display device including the color gamut controlling device. The color gamut controlling device includes a light sensing unit, a first calculation unit, a second calculation unit, and a color gamut calculation unit. The light sensing unit measures a luminance of external light. The first calculation unit calculates adjusted tristimulus values for each of three primary colors based on the measured luminance. The second calculation unit calculates final tristimulus values for each of the three primary colors using the adjusted tristimulus values and target tristimulus values for each of the three primary colors. The color gamut calculation unit calculates a corrected color gamut from the final tristimulus values. The light sensing unit may further measure tristimulus values of the external light for each of the three primary colors.Type: ApplicationFiled: November 3, 2014Publication date: May 7, 2015Inventors: Min-Tak Lee, Kyu-Seok Kim, Young-Nam Yun
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Publication number: 20140048779Abstract: An organic light emitting display device includes an organic light emitting display panel including first to third pixels that emit light of different colors, a wavelength of a color light emitted from the third pixel being shorter than wavelengths of color lights emitted from the first and second pixels, a window on an upper portion of the display panel, and a light shielding pattern on the window, the light shielding pattern being adjacent to an outline of the third pixel.Type: ApplicationFiled: January 24, 2013Publication date: February 20, 2014Inventors: Min Tak LEE, Kyu Seok KIM
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Publication number: 20140028181Abstract: An organic light-emitting display device including a first organic light-emitting device including a first pixel electrode, a first organic emission layer (EML) for emitting white light, and an opposite electrode; a first color filter between an insulating layer and the first pixel electrode, and transmitting blue light; a second organic light-emitting device including a second pixel electrode, the first organic EML for emitting white light, and the opposite electrode; a second color filter between the insulating layer and the second pixel electrode, and transmitting green light; a third organic light-emitting device including a third pixel electrode, a second organic EML for emitting a mixture light including a red color and a blue color, and the opposite electrode; and a third color filter between the insulating layer and the third pixel electrode, and including a first region for transmitting red light and a second region for transmitting the mixture light.Type: ApplicationFiled: November 9, 2012Publication date: January 30, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Min-Tak Lee, Young-Nam Yun
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Publication number: 20130208018Abstract: A flat panel display device includes a display panel for displaying an image in a first direction and for displaying the image in a second direction, the display panel including an emissive diode, a first surface, and a second surface substantially parallel to and opposite the first surface, a light-irradiating unit facing the first surface for irradiating light overlapping the image displayed in the second direction, and a control unit for operating the light-irradiating unit, wherein the first direction is substantially perpendicular to the second surface and the second direction forms an inclination angle, with the second surface.Type: ApplicationFiled: June 27, 2012Publication date: August 15, 2013Inventors: Min-Tak Lee, Young-Nam Yun, Hyun-Koo Lee