Patents by Inventor Dae-Seok Oh
Dae-Seok Oh 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: 11960752Abstract: A method of operating a memory system, which includes a memory controller and at least one non-volatile memory, includes storing, in the memory system, temperature-dependent performance level information received from a host disposed external to the memory system, setting an operation performance level of the memory system to a first performance level, operating the memory controller and the at least one non-volatile memory device according to the first performance level, detecting an internal temperature of the memory system, and changing the operation performance level of the memory system to a second performance level that is different from the first performance level. The operation performance level is changed by the memory controller of the memory system, and changing the operation performance level is based on the temperature-dependent performance level information and the detected internal temperature.Type: GrantFiled: June 24, 2021Date of Patent: April 16, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyun-Seok Kim, Dae-Ho Kim, Yong-Geun Oh, Sung-Jin Moon
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Patent number: 11929037Abstract: A display device includes a timing controlling part generating an image data, a data control signal and a gate control signal; a data driving part generating a data voltage using the image data and the data control signal; a gate driving part generating a gate voltage using the gate control signal; a display panel including a plurality of subpixels and displaying an image using the data voltage and the gate voltage; and a plurality of first MUX switches and a plurality of second MUX switches sequentially transmitting the data voltage to two of a same color among the plurality of subpixels.Type: GrantFiled: December 21, 2021Date of Patent: March 12, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Soon-Hwan Hong, Dae-Seok Oh, Seong-Yeong Kim, Kyung-Ah Chin
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Patent number: 11694591Abstract: A display device includes: a timing controlling part generating an image data, a data control signal and a gate control signal; a data driving part generating a data voltage using the image data and the data control signal; a gamma part transmitting the data voltage corresponding to the image data; a gate driving part generating a gate voltage using the gate control signal; a display panel including subpixels, gate lines, left data lines at a left side of the subpixels and right data lines at a right side of the subpixels; and first MUX switches, second MUX switches, third MUX switches, fourth MUX switches, fifth MUX switches and sixth MUX switches sequentially transmitting the data voltage to the left data lines and the right data lines.Type: GrantFiled: December 20, 2021Date of Patent: July 4, 2023Assignee: LG Display Co., Ltd.Inventors: Soon-Hwan Hong, Dae-Seok Oh, Seong-Yeong Kim
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Patent number: 11462171Abstract: Disclosed herein are a gate driving circuit and a flexible display using the same. In gate driving circuit, a control block including an nth controller configured to generate one among a gate-off voltage, an EM start signal, and a carry signal from a (n-1)th EM signal transfer part as an nth EM output control signal to apply the nth EM output control signal to a start terminal of an nth EM signal transfer part on the basis of an nth scan signal (n is a natural number) from the first shift register, a first control signal designating an off-driving signal transfer parts and an on-driving signal transfer parts among the EM signal transfer parts, a second control signal designating a first on-driving signal transfer part, and a third control signal designating second to last on-driving signal transfer parts.Type: GrantFiled: December 9, 2020Date of Patent: October 4, 2022Assignee: LG Display Co., Ltd.Inventors: Dae Seok Oh, Soon Hwan Hong, Seung Tae Jin
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Patent number: 11430368Abstract: Disclosed herein are a data driving device and a display device using the same. The data driving device includes a selector for sequentially selecting pieces of gamma reference data input from banks in the order of a first color, a second color, and a third color, and a voltage output part for converting the pieces of gamma reference data for each color, which is sequentially input, into gamma reference voltages.Type: GrantFiled: August 18, 2021Date of Patent: August 30, 2022Assignee: LG Display Co., Ltd.Inventors: Dae Seok Oh, Yong Won Jo
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Patent number: 11423821Abstract: A data driving circuit includes a first voltage divider circuit configured to output a gamma compensation voltage for a first color, a second voltage divider circuit configured to output a gamma compensation voltage for a second color, a third voltage divider circuit configured to output a gamma compensation voltage for a third color, a first digital-to-analog converter (DAC) configured to convert input data for the first color using the gamma compensation voltage for the first color to output a data voltage of a first channel, a second DAC configured to convert input data for the second color using the gamma compensation voltage for the second color to output a data voltage of a second channel, and a third DAC configured to convert input data for the third color using the gamma compensation voltage for the third color to output a data voltage of a third channel.Type: GrantFiled: May 13, 2021Date of Patent: August 23, 2022Assignee: LG Display Co., Ltd.Inventors: Dae Seok Oh, Yong Won Jo, Yong Woo Yun
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Publication number: 20220208125Abstract: A display device includes a timing controlling part generating an image data, a data control signal and a gate control signal; a data driving part generating a data voltage using the image data and the data control signal; a gate driving part generating a gate voltage using the gate control signal; a display panel including a plurality of subpixels and displaying an image using the data voltage and the gate voltage; and a plurality of first MUX switches and a plurality of second MUX switches sequentially transmitting the data voltage to two of a same color among the plurality of subpixels.Type: ApplicationFiled: December 21, 2021Publication date: June 30, 2022Applicant: LG DISPLAY CO., LTD.Inventors: Soon-Hwan HONG, Dae-Seok OH, Seong-Yeong KIM, Kyung-Ah CHIN
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Publication number: 20220208063Abstract: A display device includes: a timing controlling part generating an image data, a data control signal and a gate control signal; a data driving part generating a data voltage using the image data and the data control signal; a gamma part transmitting the data voltage corresponding to the image data; a gate driving part generating a gate voltage using the gate control signal; a display panel including subpixels, gate lines, left data lines at a left side of the subpixels and right data lines at a right side of the subpixels; and first MUX switches, second MUX switches, third MUX switches, fourth MUX switches, fifth MUX switches and sixth MUX switches sequentially transmitting the data voltage to the left data lines and the right data lines.Type: ApplicationFiled: December 20, 2021Publication date: June 30, 2022Inventors: Soon-Hwan Hong, Dae-Seok Oh, Seong-Yeong Kim
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Publication number: 20220068184Abstract: Disclosed herein are a data driving device and a display device using the same. The data driving device includes a selector for sequentially selecting pieces of gamma reference data input from banks in the order of a first color, a second color, and a third color, and a voltage output part for converting the pieces of gamma reference data for each color, which is sequentially input, into gamma reference voltages.Type: ApplicationFiled: August 18, 2021Publication date: March 3, 2022Inventors: Dae Seok Oh, Yong Won Jo
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Patent number: 11217178Abstract: Disclosed herein is a display which activates a maximum screen which is an entirety of a screen of a flexible display panel to display an image thereon in an unfolded state of the flexible display panel and activates a part of the screen in a folded state of the flexible display panel so that the activated screen that is smaller than the maximum screen displays the image and a deactivated screen displays black.Type: GrantFiled: June 2, 2020Date of Patent: January 4, 2022Assignee: LG DISPLAY CO., LTD.Inventors: Dae Seok Oh, Yong Won Jo, Myung Jong Park
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Publication number: 20210366343Abstract: A data driving circuit includes a first voltage divider circuit configured to output a gamma compensation voltage for a first color, a second voltage divider circuit configured to output a gamma compensation voltage for a second color, a third voltage divider circuit configured to output a gamma compensation voltage for a third color, a first digital-to-analog converter (DAC) configured to convert input data for the first color using the gamma compensation voltage for the first color to output a data voltage of a first channel, a second DAC configured to convert input data for the second color using the gamma compensation voltage for the second color to output a data voltage of a second channel, and a third DAC configured to convert input data for the third color using the gamma compensation voltage for the third color to output a data voltage of a third channel.Type: ApplicationFiled: May 13, 2021Publication date: November 25, 2021Inventors: Dae Seok OH, Yong Won JO, Yong Woo YUN
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Patent number: 11100900Abstract: A foldable display comprises a flexible display panel including a screen which displays an image; a measuring part configured to measure a folding angle of the flexible display panel; and an image processor configured to vary a size of the image displayed on the screen and a size of a black pattern displayed on the screen of the flexible display panel while the folding angle of the flexible display panel is varied.Type: GrantFiled: May 28, 2020Date of Patent: August 24, 2021Assignee: LG DISPLAY CO., LTD.Inventors: Myung Jong Park, Dae Seok Oh, Jin Woo Jung
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Publication number: 20210201813Abstract: Disclosed herein are a gate driving circuit and a flexible display using the same. In gate driving circuit, a control block including an nth controller configured to generate one among a gate-off voltage, an EM start signal, and a carry signal from a (n?1)th EM signal transfer part as an nth EM output control signal to apply the nth EM output control signal to a start terminal of an nth EM signal transfer part on the basis of an nth scan signal (n is a natural number) from the first shift register, a first control signal designating an off-driving signal transfer parts and an on-driving signal transfer parts among the EM signal transfer parts, a second control signal designating a first on-driving signal transfer part, and a third control signal designating second to last on-driving signal transfer parts.Type: ApplicationFiled: December 9, 2020Publication date: July 1, 2021Inventors: Dae Seok OH, Soon Hwan HONG, Seung Tae JIN
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Publication number: 20200394984Abstract: A foldable display comprises a flexible display panel including a screen which displays an image; a measuring part configured to measure a folding angle of the flexible display panel; and an image processor configured to vary a size of the image displayed on the screen and a size of a black pattern displayed on the screen of the flexible display panel while the folding angle of the flexible display panel is varied.Type: ApplicationFiled: May 28, 2020Publication date: December 17, 2020Applicant: LG Display Co., Ltd.Inventors: Myung Jong PARK, Dae Seok OH, Jin Woo JUNG
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Publication number: 20200388228Abstract: Disclosed herein is a display which activates a maximum screen which is an entirety of a screen of a flexible display panel to display an image thereon in an unfolded state of the flexible display panel and activates a part of the screen in a folded state of the flexible display panel so that the activated screen that is smaller than the maximum screen displays the image and a deactivated screen displays black.Type: ApplicationFiled: June 2, 2020Publication date: December 10, 2020Applicant: LG DISPLAY CO., LTD.Inventors: Dae Seok OH, Yong Won JO, Myung Jong PARK
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Patent number: 10303275Abstract: A touch display device includes a touch display panel for displaying an image corresponding to a touch applied from outside the touch display device, a gate driver for sequentially driving all gate lines of the touch display panel once during a unit field period including at least two continuous field periods, in such a manner that a total gate driving period corresponding to a sum of individual gate driving periods of all gate lines is shorter than the unit field period, and a touch control unit for defining periods of the unit field period other than the total gate driving period, as a touch sensing period, and performing an operation for sensing a touch on the touch display panel during the touch sensing period.Type: GrantFiled: September 9, 2014Date of Patent: May 28, 2019Assignee: LG Display Co., Ltd.Inventors: Dae-Seok Oh, Ju-Young Lee, Bo-Gun Seo, Hak-Su Kim, Yong-Hwa Park
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Patent number: 9953575Abstract: Disclosed is a method of driving a display device that includes, for example, generating a gate control signal, a data control signal and an image data using an image signal; generating a data voltage using the data control signal and the image data; generating a gate voltage using the gate control signal; and sequentially applying the gate voltage of a high level to q groups of the plurality of gate lines during q frames, respectively, where q is an integer greater than 1.Type: GrantFiled: December 2, 2015Date of Patent: April 24, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Dae-Seok Oh, Moon-Soo Chung
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Publication number: 20160189616Abstract: Disclosed is a method of driving a display device that includes, for example, generating a gate control signal, a data control signal and an image data using an image signal; generating a data voltage using the data control signal and the image data; generating a gate voltage using the gate control signal; and sequentially applying the gate voltage of a high level to q groups of the plurality of gate lines during q frames, respectively, where q is an integer greater than 1.Type: ApplicationFiled: December 2, 2015Publication date: June 30, 2016Inventors: Dae-Seok OH, Moon-Soo CHUNG
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Patent number: 9299300Abstract: Disclosed are an LCD device and a driving method thereof. The LCD device includes at least one source driving ICs configured to drive a plurality of data lines formed in a panel, a timing controller configured to generate a power control signal used to change a level of a driving voltage applied to the source driving ICs according to a pattern of an image output to the panel, and a driving voltage generator configured to generate a first driving voltage or a second driving voltage according to the power control signal to drive the source driving ICs. The first and second driving voltages have different levels.Type: GrantFiled: December 19, 2013Date of Patent: March 29, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Dae Seok Oh, Bo Gun Seo, Seung Hwan Shin
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Patent number: 9280945Abstract: An LCD device is disclosed which includes: a liquid crystal display panel in which there are a plurality of gate lines and a plurality of data lines; a data driver configured to apply data voltages to the data lines; a gate driver configured to apply gate pulses to the gate lines; and a charge share device configured to selectively perform a charge share operation by storing charges corresponding to a data voltage applied to one of the data lines during a first interval and providing the stored charges to said one or another one of the data lines during a second interval based on a comparison of first video data corresponding to said one of the data lines in the first interval with second video data corresponding to said one or another one of the data lines in the second interval.Type: GrantFiled: September 12, 2013Date of Patent: March 8, 2016Assignee: LG Display Co., Ltd.Inventors: Dae Seok Oh, Bo Gun Seo, Yong Hwa Park