Patents by Inventor Byung-Ki Chun
Byung-Ki Chun 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: 11568774Abstract: There is provided a method of displaying an image on a display device, the method including moving an image displayed at an image display region of the display device, and reducing a first region and enlarging a second region, the first and second regions included in the image, wherein the image has a smaller size than the image display region.Type: GrantFiled: June 8, 2020Date of Patent: January 31, 2023Assignee: Samsung Display Co., Ltd.Inventors: Byung Ki Chun, Jin Woo Noh, Jun Gyu Lee
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Publication number: 20230005417Abstract: A display device includes a display panel including a plurality of pixels respectively connected to a plurality of data lines and a plurality of scan lines, a data driving circuit for driving the plurality of data lines, a scan driving circuit for driving the plurality of scan lines, and a driving controller for receiving a control signal and an image signal and controlling the data driving circuit and the scan driving circuit such that an image is displayed on the display panel. The driving controller identifies a first region and a second region of an image to be displayed on the display panel based on the image signal and provides the data driving circuit with an image data signal obtained by compensating for the image signal to be provided to pixels adjacent to the second region among pixels corresponding to the first region as a compensation value.Type: ApplicationFiled: April 27, 2022Publication date: January 5, 2023Inventors: DONG WON LEE, Byung Ki Chun, Joon-Chul Goh, Bonghyun You
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Patent number: 11545060Abstract: A display device includes: a plurality of pixels; a first pixel unit comprising a first portion of the plurality of pixels; a second pixel unit comprising a second portion of the plurality of pixels; and a data driver configured to supply a data voltage to the first pixel unit and the second pixel unit, wherein the data driver is configured to generate a data voltage to be supplied to the first pixel unit based on different gamma voltages even when the same grayscale is expressed according to a driving method, and the second pixel unit is configured to be driven or not driven according to the driving method.Type: GrantFiled: December 10, 2020Date of Patent: January 3, 2023Assignee: Samsung Display Co., Ltd.Inventors: Soon Dong Kim, Joon Chul Goh, Bong Hyun You, Byung Ki Chun, Seong Heon Cho
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Patent number: 11514843Abstract: A display device includes: pixels arranged in a display area; a timing controller which generates image data of each frame based on an input image signal of the each frame, the timing controller including a logo controller which detects a logo image and a logo area including the logo image from the input image signal of the each frame to control luminance of the logo image; and a data driver which generates a data signal based on the image data and supplies the data signal to the pixels. The logo controller generates a first logo map based on an input image signal of a previous frame, generates a second logo map based on an input image signal of a current frame, and determines a similarity between the first logo map and the second logo map to selectively change luminance of a logo image of a next frame.Type: GrantFiled: August 19, 2021Date of Patent: November 29, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyeon Min Kim, Hyun Jun Lim, Young Wook Yoo, Jun Gyu Lee, Byung Ki Chun
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Patent number: 11508288Abstract: A display device includes pixels; an image converter which generates a second image by correcting grayscales of a logo among a first image for the pixels; and a data driver which provides data voltages corresponding to the second image to the pixels. The image converter generates first accumulated data by accumulating first map data corresponding to a logo area larger than the logo among the first image during a plurality of frame periods, generates second accumulated data by scaling the first accumulated data every refresh cycle, generates third accumulated data by initializing values smaller than a first threshold value among the second accumulated data to be a background value, and specifies pixels corresponding to the logo based on second map data corresponding to the third accumulated data.Type: GrantFiled: March 10, 2021Date of Patent: November 22, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Byung Ki Chun, Hyeon Min Kim, Young Wook Yoo, Jun Gyu Lee, Hyun Jun Lim
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Patent number: 11443502Abstract: An object detection post-processing device of a display device, includes: an input to receive position information of an object that is detected from input image data for the display device in a current frame; a position information storage device to accumulatively store the position information of a plurality of previous frames; an accumulated position calculator to generate accumulated position information according to the position information of the current frame and the position information of the plurality of previous frames; and a position information determiner to determine final position information according to the accumulated position information, and to output the final position information.Type: GrantFiled: May 4, 2020Date of Patent: September 13, 2022Assignee: Samsung Display Co., Ltd.Inventors: Jun Gyu Lee, Hyeon Min Kim, Kuk-Hwan Ahn, Young Wook Yoo, Hyun Jun Lim, Byung Ki Chun
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Patent number: 11386643Abstract: A driving controller includes a logo detector. The logo detector includes a histogram extractor which receives input image data and extracts a first histogram from logo area data of the input image data, a first histogram regenerator electrically connected to the histogram extractor and configured to receive the first histogram from the histogram extractor to generate a second histogram based on the first histogram and a logo map determiner electrically connected to the histogram extractor and the first histogram regenerator, and configure to select one of the first histogram and the second histogram to generate a first logo map. The driving controller is configured to compensate the logo area data of the input image data using the first logo map.Type: GrantFiled: June 3, 2020Date of Patent: July 12, 2022Inventors: Byung Ki Chun, Kuk-Hwan Ahn, Young Wook Yoo, Jungyu Lee, Hyunjun Lim
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Publication number: 20220208055Abstract: A display device includes: a display panel including first and second display areas adjacent to each other; and first and second data drivers configured to drive the first and second display areas, respectively, wherein the first data driver includes: a first afterimage detector configured to receive an input image and to detect a first afterimage area including an afterimage of the first display area from the input image; a first comparator configured to compare an afterimage detection result of the first display area with an afterimage detection result of the second display area received from the second data driver; and a first coordinate corrector configured to correct coordinates of the first afterimage area in response to the afterimage detection result of the first display area and the afterimage detection result of the second display area satisfying a preset reference.Type: ApplicationFiled: October 28, 2021Publication date: June 30, 2022Inventors: Hyun Jun LIM, Hyeon Min KIM, Young Wook YOO, Jun Gyu LEE, Byung Ki CHUN
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Publication number: 20220198997Abstract: A display device includes: pixels arranged in a display area; a timing controller which generates image data of each frame based on an input image signal of the each frame, the timing controller including a logo controller which detects a logo image and a logo area including the logo image from the input image signal of the each frame to control luminance of the logo image; and a data driver which generates a data signal based on the image data and supplies the data signal to the pixels. The logo controller generates a first logo map based on an input image signal of a previous frame, generates a second logo map based on an input image signal of a current frame, and determines a similarity between the first logo map and the second logo map to selectively change luminance of a logo image of a next frame.Type: ApplicationFiled: August 19, 2021Publication date: June 23, 2022Inventors: Hyeon Min KIM, Hyun Jun LIM, Young Wook YOO, Jun Gyu LEE, Byung Ki CHUN
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Publication number: 20220122544Abstract: A display device includes pixels, an image converter generating second image data using first image data of an N-th frame and first image data of an (N+1)th frame; and a data driver supplying a data signal corresponding to the second image data to the pixels during an (N+1)th frame period. The image converter detects a logo and a logo area using the first image data, calculates a first representative value of data corresponding to a peripheral area of the logo area among the first image data of an N-th frame and a second representative value of data corresponding to a reference area among the first image data of the (N+1)th frame, and selectively converts data for the logo among the first image data of the (N+1)th frame according to the first representative value and the second representative value to generate the second image data of the (N+1)th frame.Type: ApplicationFiled: October 15, 2021Publication date: April 21, 2022Applicant: Samsung Display Co., LTD.Inventors: Byung Ki CHUN, Hyeon Min KIM, Young Wook YOO, Jun Gyu LEE, Hyun Jun LIM
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Patent number: 11289047Abstract: A display device includes: a frame data counter configured to calculate frame information of an image displayed in a display area; a speed controller configured to determine a moving speed of the image; and a scenario determiner configured to determine a moving direction and moving amount of the image.Type: GrantFiled: March 26, 2020Date of Patent: March 29, 2022Assignee: Samsung Display Co., Ltd.Inventors: Byung Ki Chun, Soon Dong Kim, Hae Kwan Seo, Seung Jae Lee, Jun Gyu Lee, Bong Ju Jun
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Publication number: 20220067515Abstract: The present disclosure provides a display device. The display device includes a plurality of pixels, a data driver, and a timing controller. The plurality of pixels are connected to a plurality of scan lines and a plurality of data lines. The data driver supplies a data voltage to the plurality of data lines in a light-emitting mode and supplies a neural network input voltage to the plurality of data lines in an artificial neural network mode. The timing controller is in an artificial neural network mode, and supplies a weight value control signal for performing a deep learning operation by using at least one of the plurality of pixels to the data driver. The weight value control signal is generated based on a predetermined weight value.Type: ApplicationFiled: June 7, 2021Publication date: March 3, 2022Inventors: YOUNG WOOK YOO, Hyeon Min KIM, Jun Gyu Lee, Hyun Jun Lim, Byung Ki Chun
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Publication number: 20220028355Abstract: The present disclosure provides a display device with a display panel and driver. The driver includes a logo compensator to generate a logo map data with respect to a logo area through which the logo image is displayed and compensates for a brightness of the logo area using the logo map data. The logo compensator includes an extractor, a logo calculator, a logo determination unit, and a brightness compensation block. The extractor extracts logo area data. The logo calculator calculates the logo map data with first data corresponding to a first image recognized as the logo image and second data corresponding to a second image recognized as a logo background image. The logo determination unit sets a boundary area and determining whether a first area corresponding to the first image overlaps the boundary area to output determination data. The brightness compensation block compensates for the brightness of the logo area.Type: ApplicationFiled: May 28, 2021Publication date: January 27, 2022Inventors: BYUNG KI CHUN, HYEONMIN KIM, YOUNGWOOK YOO, JUNGYU LEE, HYUNJUN LIM
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Publication number: 20210398493Abstract: A display device includes pixels, an image converter which generates a second image by correcting grayscales of a first logo in a first image for the pixels, and a data driver which provides data signals corresponding to the second image to the pixels. The image converter detects the first logo based on value and saturation of the first image, generates first map data corresponding to the first logo, and specifies pixels corresponding to the first logo based on the first map data.Type: ApplicationFiled: June 4, 2021Publication date: December 23, 2021Inventors: Byung Ki Chun, Hyeon Min Kim, Young Wook Yoo, Jun Gyu Lee, Hyun Jun Lim
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Publication number: 20210375189Abstract: A display device includes pixels; an image converter which generates a second image by correcting grayscales of a logo among a first image for the pixels; and a data driver which provides data voltages corresponding to the second image to the pixels. The image converter generates first accumulated data by accumulating first map data corresponding to a logo area larger than the logo among the first image during a plurality of frame periods, generates second accumulated data by scaling the first accumulated data every refresh cycle, generates third accumulated data by initializing values smaller than a first threshold value among the second accumulated data to be a background value, and specifies pixels corresponding to the logo based on second map data corresponding to the third accumulated data.Type: ApplicationFiled: March 10, 2021Publication date: December 2, 2021Inventors: Byung Ki CHUN, Hyeon Min KIM, Young Wook YOO, Jun Gyu LEE, Hyun Jun LIM
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Patent number: 11183107Abstract: A display device including: a first pixel region including first pixels connected to a data line and first scan lines; a second pixel region in contact with the first pixel region at a first boundary and including second pixels connected to the data line and second scan lines; and a third pixel region in contact with the second pixel region at a second boundary and including third pixels connected to the data line and third scan lines, wherein the display device is configured to scale an image displayed in the second pixel region one or more times based on the second pixel region maintaining a folded state.Type: GrantFiled: July 1, 2020Date of Patent: November 23, 2021Assignee: Samsung Display Co., Ltd.Inventors: Byung Ki Chun, Seung Jae Lee, Hae Kwan Seo, Chang Noh Yoon, Soon Dong Kim, Ji Hye Kim, Jun Gyu Lee, Jun Heyung Jung, Young Wook Yoo, Kuk Hwan Ahn, Hyun Jun Lim
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Publication number: 20210319733Abstract: A display device includes: a plurality of pixels; a first pixel unit comprising a first portion of the plurality of pixels; a second pixel unit comprising a second portion of the plurality of pixels; and a data driver configured to supply a data voltage to the first pixel unit and the second pixel unit, wherein the data driver is configured to generate a data voltage to be supplied to the first pixel unit based on different gamma voltages even when the same grayscale is expressed according to a driving method, and the second pixel unit is configured to be driven or not driven according to the driving method.Type: ApplicationFiled: December 10, 2020Publication date: October 14, 2021Inventors: Soon Dong KIM, Joon Chul GOH, Bong Hyun YOU, Byung Ki CHUN, Seong Heon CHO
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Patent number: 11127335Abstract: A driving controller of a display device includes a driving frequency controller for receiving an image signal, determining a driving frequency based on the image signal, and outputting a masking enable signal corresponding to the driving frequency, and an image processor for converting the image signal into a data signal and outputting the data signal, wherein the image processor sequentially converts, based on the masking enable signal being at an active level, a part of bits of the image signal into the data signal corresponding to a plurality of dither patterns.Type: GrantFiled: June 4, 2020Date of Patent: September 21, 2021Inventors: Kuk-Hwan Ahn, HongSoo Kim, Junheyung Jung, Youngwook Yoo, Jungyu Lee, Hyunjun Lim, Byung Ki Chun
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Publication number: 20210193017Abstract: A display device includes a display panel, a memory, a dithering processor, and a panel driver. The display panel includes a display surface, and the memory stores dither patterns with respect to at least one spot area included in the display surface. The dithering processor selects a dither pattern among the dither patterns in a predetermined time unit and outputs a compensation image signal corresponding to the dither pattern. The panel driver outputs a data signal corresponding to the spot area based on the compensation image signal. Each of the dither patterns includes a first grayscale area having a first grayscale value higher than a first target grayscale value of the spot area and a second grayscale area having a second grayscale value lower than the first target grayscale value.Type: ApplicationFiled: July 28, 2020Publication date: June 24, 2021Inventors: Kuk-Hwan AHN, YOUNGWOOK YOO, Jungyu LEE, Hyunjun LIM, BYUNG KI CHUN
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Publication number: 20210134199Abstract: A display device includes: a plurality of first pixels connected to a first scan line; a plurality of second pixels connected to a second scan line; and a plurality of third pixels connected to a third scan line, wherein, from a position in a first frame period, an image portion displayed by the first pixels, the second pixels, and the third pixels, which are connected to first data lines, is shifted in a first direction, in a second frame period next to the first frame period, wherein an image portion displayed by the first pixels and the second pixels, which are connected to second data lines, is shifted in the first direction, in the second frame period, wherein an image portion displayed by the third pixels connected to the second data lines is shifted in a direction different from the first direction, in the second frame period.Type: ApplicationFiled: July 17, 2020Publication date: May 6, 2021Inventors: Jun Gyu Lee, Byung Ki Chun