Patents by Inventor Dong-Beom Cho
Dong-Beom Cho 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: 20160154262Abstract: A tiled display device includes a first display module including a first display panel configured to display an image, and first top chassis blocks disposed to surround the first display panel, and a second display module including a second display panel configured to display an image associated with the image displayed in the first display panel, and second top chassis blocks disposed to surround the second display panel. The first and second display modules are disposed in a tiled form, and each of the first top chassis blocks and the second top chassis blocks are spaced apart from each other by a first distance.Type: ApplicationFiled: March 25, 2015Publication date: June 2, 2016Inventors: Dong Beom CHO, Gyu Su LEE, Yun Gun LEE, Du Yeon HAN
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Publication number: 20160140916Abstract: A method of operating a display panel in which a plurality of decisions are generated by detecting transitions of a plurality of present pixel data included in a present frame image. A uniform dynamic capacitance compensation (DCC) is performed based on the plurality of decisions. A present grayscale of each of the plurality of present pixel data increases by a first compensation value, decreases by a second compensation value, or is maintained based on the uniform DCC.Type: ApplicationFiled: June 9, 2015Publication date: May 19, 2016Inventor: Dong-Beom CHO
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Patent number: 9292942Abstract: Provided are an image signal compensation apparatus and a liquid crystal display (LCD) including the same. The image signal compensation apparatus includes a lookup table (LUT) and an image signal compensation unit. The LUT includes reference data that corresponds to each combination of first and second reference gray levels and is arranged in a matrix. The image signal compensation unit receives first and second image signals, receives reference data corresponding to the first and second image signals from the LUT, and compensates the second image signal using the reference data. The reference data includes diagonal reference data located on a diagonal line in the matrix, and at least one diagonal reference data from among the diagonal reference data has a different value from a corresponding combination of the first and second reference gray levels.Type: GrantFiled: October 8, 2013Date of Patent: March 22, 2016Assignee: Samsung Display Co., Ltd.Inventors: Bong-Im Park, Bong-Ju Jun, Yun-Jae Kim, Jae-Won Jeong, Yong-Jun Choi, Dong-Beom Cho, Woo-Jin Jung, Kang-Hyun Kim
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Publication number: 20160066410Abstract: A curved display device is provided. The curved display device includes: a curved display panel configured to have short sides and long sides; a printed circuit board (PCB) configured to provide signals for driving the curved display panel; and a flexible wiring board including a first portion, which is connected to a first area, a second portion, which is connected to the PCB, and a third portion, which is disposed between the first portion and the second portion and has curved sides, wherein a curvature radius of a first side of the curved sides differs from a curvature radius of a second side of the curved sides.Type: ApplicationFiled: December 3, 2014Publication date: March 3, 2016Inventor: Dong Beom CHO
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Publication number: 20150356910Abstract: A data driver includes first through n-th shift register units, first through n-th latch units, and first through n-th output buffer units. The first through n-th shift register units shift and store a plurality of image output from a timing controller. The first shift register unit includes first through m-th shift registers. The first through m-th shift registers shift and store first through m-th image data among the plurality of image data. The first through n-th latch units are connected to the first through n-th shift register units, respectively. The first latch unit includes first through m-th latches. The first through n-th output buffer units are connected to the first through n-th latch units, respectively. The first output buffer unit includes first through m-th output buffers. The first through n-th latch units sequentially latch the plurality of image data stored in the first through n-th shift register units.Type: ApplicationFiled: November 7, 2014Publication date: December 10, 2015Inventor: DONG-BEOM CHO
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Publication number: 20150206491Abstract: A display device includes a plurality of pixels arranged in a column direction and a row direction, a plurality of data lines and a data driving part configured to apply data signals to the data lines. The data lines are connected with one of the pixels of a k-th column (‘k’ is a natural number) and one of the pixels of a (k+1)-th column in an odd-numbered row. The data lines are connected with one of the pixels of a (k+1)-th column and one of the pixels of a (k+2)-th column in an even-numbered row. As a result, a pseudo dot inversion drive pattern may be implemented while driving the data lines in accordance with a columnar polarity inversion scheme.Type: ApplicationFiled: May 8, 2014Publication date: July 23, 2015Applicant: Samsung Display Co., LTD.Inventor: Dong-Beom CHO
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Publication number: 20150015553Abstract: A display apparatus includes a display panel including a display area in which gate lines and data lines are disposed to display an image and a peripheral area which is disposed around the display area and includes fan-out lines having different lengths, and a driving part configured to output driving signals having different levels to channels respectively connected to the fan-out lines according to the different lengths of the fan-out lines.Type: ApplicationFiled: January 9, 2014Publication date: January 15, 2015Applicant: Samsung Display Co., LTD.Inventors: Dong-Beom CHO, Young-Dong KOO, Min-Wook PARK
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Patent number: 8766894Abstract: A liquid crystal display system including a signal processing device uses interpolation to generate an intermediate image frame using previous image frame data and present image frame data. The system converts data of the intermediate image frame into transposed image data that is to be used to drive a liquid crystal display panel and display a corresponding image. The transposed image data and the present image data are subjected to a prespecified DCC process (dynamic capacitance compensation process) to thereby generate respective first and second compensation image data. Since the first compensation image data is generated based on the transposed image data and the transposition is configured to prevent over-compensation by the DCC process, over-compensation by the dynamic capacitance compensation process can be reduced or prevented.Type: GrantFiled: February 14, 2013Date of Patent: July 1, 2014Assignee: Samsung Display Co., Ltd.Inventors: Bong-Im Park, Jong-Hyon Park, Bong-Ju Jun, Jae-Won Jeong, Yong-Jun Choi, Woo-Chul Kim, Byung-Kil Jeon, Nam-Gon Choi, Yun-Jae Kim, Dong-Beom Cho
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Publication number: 20140125639Abstract: A display device is provided which includes a display panel including a plurality of pixels connected with a plurality of gate lines and a plurality of data lines; a gate driving unit configured to drive the plurality of gate lines; a data driver configured to drive the plurality of data lines; and a timing controller configured to generate a plurality of control signals for controlling the gate driving unit and the data driver in response to externally provided clock signal and data signals. The timing controller converts the data signals into an image data signal, a horizontal synchronization signal, a vertical synchronization signal, and a data enable signal, a pulse width of each of the horizontal and vertical synchronization signals corresponding to an aspect ratio of the data signals or a size of a black image display area.Type: ApplicationFiled: April 19, 2013Publication date: May 8, 2014Applicant: Samsung Display Co., Ltd.Inventor: Dong-Beom CHO
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Publication number: 20140035941Abstract: Provided are an image signal compensation apparatus and a liquid crystal display (LCD) including the same. The image signal compensation apparatus includes a lookup table (LUT) and an image signal compensation unit. The LUT includes reference data that corresponds to each combination of first and second reference gray levels and is arranged in a matrix. The image signal compensation unit receives first and second image signals, receives reference data corresponding to the first and second image signals from the LUT, and compensates the second image signal using the reference data. The reference data includes diagonal reference data located on a diagonal line in the matrix, and at least one diagonal reference data from among the diagonal reference data has a different value from a corresponding combination of the first and second reference gray levels.Type: ApplicationFiled: October 8, 2013Publication date: February 6, 2014Applicant: Samsung Display Co., Ltd.Inventors: Bong-Im PARK, Bong-Ju Jun, Yun-Jae Kim, Jae-Won Jeong, Young-Jun Choi, Dong-Beom Cho, Woo-Jin Jung, Kang-Hyun Kim
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Patent number: 8416168Abstract: A liquid crystal display (“LCD”) includes; a gate line, a plurality of pairs of a first data line and a second data line which border a plurality of pixel regions and are disposed respectively on both sides of each pixel region, a plurality of pairs of first and second thin-film transistors (“TFTs”) which are connected to the gate line and a pair of the first and second data lines, and a first and second subpixel electrode disposed in each pixel region and connected to the first and second TFTs, respectively, wherein the pixel regions include first through third pixel regions arranged in the first direction, wherein at least one of the first and second TFTs of the second pixel region is disposed on a same side of an adjacent data line as the first and second subpixel electrodes of one of the first and third pixel regions.Type: GrantFiled: December 3, 2009Date of Patent: April 9, 2013Assignee: Samsung Display Co., Ltd.Inventors: Dong-Beom Cho, Dong-Gyun Ra, Yong-Jun Choi, Woo-Jin Jung
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Patent number: 8378943Abstract: A liquid crystal display system including a signal processing device uses interpolation to generate an intermediate image frame using previous image frame data and present image frame data. The system converts data of the intermediate image frame into transposed image data that is to be used to drive a liquid crystal display panel and display a corresponding image. The transposed image data and the present image data are subjected to a prespecified DCC process (dynamic capacitance compensation process) to thereby generate respective first and second compensation image data. Since the first compensation image data is generated based on the transposed image data and the transposition is configured to prevent over-compensation by the DCC process, over-compensation by the dynamic capacitance compensation process can be reduced or prevented.Type: GrantFiled: June 11, 2012Date of Patent: February 19, 2013Assignee: Samsung Display Co., Ltd.Inventors: Bong-Im Park, Jong-Hyon Park, Bong-Ju Jun, Jae-Won Jeong, Yong-Jun Choi, Woo-Chul Kim, Byung-Kil Jeon, Nam-Gon Choi, Yun-Jae Kim, Dong-Beom Cho
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Patent number: 8299995Abstract: A liquid crystal display includes a liquid crystal panel having a plurality of pixels, a lookup table which stores information about a plurality of digital common voltages, each of the plurality of digital common voltages corresponding to at least one gray value, a timing controller which analyzes gray characteristics of image signals to be displayed on the liquid crystal panel and which selects one of the digital common voltages based on an analysis result, and a common voltage generator which generates an analog common voltage in response to the digital common voltage selected by the timing controller and which supplies the analog common voltage to the liquid crystal panel.Type: GrantFiled: February 3, 2009Date of Patent: October 30, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Won Jeong, Bong-Im Park, Yong-Jun Choi, Bong-Ju Jun, Yun-Jae Kim, Dong-Gyun Ra, Dong-Beom Cho
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Publication number: 20120249405Abstract: A liquid crystal display system including a signal processing device uses interpolation to generate an intermediate image frame using previous image frame data and present image frame data. The system converts data of the intermediate image frame into transposed image data that is to be used to drive a liquid crystal display panel and display a corresponding image. The transposed image data and the present image data are subjected to a prespecified DCC process (dynamic capacitance compensation process) to thereby generate respective first and second compensation image data. Since the first compensation image data is generated based on the transposed image data and the transposition is configured to prevent over-compensation by the DCC process, over-compensation by the dynamic capacitance compensation process can be reduced or prevented.Type: ApplicationFiled: June 11, 2012Publication date: October 4, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Bong-Im PARK, Jong-Hyon PARK, Bong-Ju JUN, Jae-Won JEONG, Yong-Jun CHOI, Woo-Chul KIM, Byung-Kil JEON, Nam-Gon CHOI, Yun-Jae KIM, Dong-Beom CHO
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Patent number: 8217875Abstract: A liquid crystal display system including a signal processing device uses interpolation to generate an intermediate image frame using previous image frame data and present image frame data. The system converts data of the intermediate image frame into transposed image data that is to be used to drive a liquid crystal display panel and display a corresponding image. The transposed image data and the present image data are subjected to a prespecified DCC process (dynamic capacitance compensation process) to thereby generate respective first and second compensation image data. Since the first compensation image data is generated based on the transposed image data and the transposition is configured to prevent over-compensation by the DCC process, over-compensation by the dynamic capacitance compensation process can be reduced or prevented.Type: GrantFiled: December 5, 2008Date of Patent: July 10, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Bong-Im Park, Jong-Hyon Park, Bong-Ju Jun, Jae-Won Jeong, Yong-Jun Choi, Woo-Chul Kim, Byung-Kil Jeon, Nam-Gon Choi, Yun-Jae Kim, Dong-Beom Cho
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Patent number: 8174515Abstract: In a method of driving a display panel and a display apparatus for performing the method, a first pixel equipped in the display panel is driven with a first data voltage to which a first gamma curve is applied and a second pixel adjacent to the first pixel is driven with a second data voltage to which a second gamma curve is applied during an (N)-th frame, wherein N is a natural number. The first pixel and the second pixel is driven with a third data voltage to which a third gamma curve having a luminance between the first gamma curve and the second gamma curve is applied during a (N+1)-th frame.Type: GrantFiled: March 27, 2009Date of Patent: May 8, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Won Jeong, Bong-Im Park, Bong-Ju Jun, Yun-Jae Kim, Yong-Jun Choi, Dong-Beom Cho
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Publication number: 20100283714Abstract: A liquid crystal display (“LCD”) includes; a gate line, a plurality of pairs of a first data line and a second data line which border a plurality of pixel regions and are disposed respectively on both sides of each pixel region, a plurality of pairs of first and second thin-film transistors (“TFTs”) which are connected to the gate line and a pair of the first and second data lines, and a first and second subpixel electrode disposed in each pixel region and connected to the first and second TFTs, respectively, wherein the pixel regions include first through third pixel regions arranged in the first direction, wherein at least one of the first and second TFTs of the second pixel region is disposed on a same side of an adjacent data line as the first and second subpixel electrodes of one of the first and third pixel regions.Type: ApplicationFiled: December 3, 2009Publication date: November 11, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Dong-Beom CHO, Dong-Gyun RA, Yong-Jun CHOI, Woo-Jin JUNG
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Publication number: 20100033414Abstract: A liquid crystal display includes a liquid crystal panel having a plurality of pixels, a lookup table which stores information about a plurality of digital common voltages, each of the plurality of digital common voltages corresponding to at least one gray value, a timing controller which analyzes gray characteristics of image signals to be displayed on the liquid crystal panel and which selects one of the digital common voltages based on an analysis result, and a common voltage generator which generates an analog common voltage in response to the digital common voltage selected by the timing controller and which supplies the analog common voltage to the liquid crystal panel.Type: ApplicationFiled: February 3, 2009Publication date: February 11, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae-Won JEONG, Bong-Im PARK, Yong-Jun CHOI, Bong-Ju JUN, Yun-Jae KIM, Dong-Gyun RA, Dong-Beom CHO
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Publication number: 20100007639Abstract: In a method of driving a display panel and a display apparatus for performing the method, a first pixel equipped in the display panel is driven with a first data voltage to which a first gamma curve is applied and a second pixel adjacent to the first pixel is driven with a second data voltage to which a second gamma curve is applied during an (N)-th frame, wherein N is a natural number. The first pixel and the second pixel is driven with a third data voltage to which a third gamma curve having a luminance between the first gamma curve and the second gamma curve is applied during a (N+1)-th frame.Type: ApplicationFiled: March 27, 2009Publication date: January 14, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae-Won JEONG, Bong-Im Park, Bong-Ju Jun, Yun-Jae Kim, Yong-Jun Choi, Dong-Beom Cho
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SIGNAL PROCESSING DEVICE FOR LIQUID CRYSTAL DISPLAY PANEL AND LIQUID CRYSTAL DISPLAY HAVING THE SAME
Publication number: 20090309903Abstract: A liquid crystal display system including a signal processing device uses interpolation to generate an intermediate image frame using previous image frame data and present image frame data. The system converts data of the intermediate image frame into transposed image data that is to be used to drive a liquid crystal display panel and display a corresponding image. The transposed image data and the present image data are subjected to a prespecified DCC process (dynamic capacitance compensation process) to thereby generate respective first and second compensation image data. Since the first compensation image data is generated based on the transposed image data and the transposition is configured to prevent over-compensation by the DCC process, over-compensation by the dynamic capacitance compensation process can be reduced or prevented.Type: ApplicationFiled: December 5, 2008Publication date: December 17, 2009Inventors: Bong-Im PARK, Jong-Hyon Park, Bong-Ju Jun, Jae-Won Jeong, Yong-Jun Choi, Woo-Chul Kim, Byung-Kil Jeon, Nam-Gon Choi, Yun-Jae Kim, Dong-Beom Cho