Patents by Inventor Doo-sik Park
Doo-sik Park 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: 20240147845Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.Type: ApplicationFiled: December 6, 2023Publication date: May 2, 2024Inventors: Kyoung-Jin PARK, Tae-Jin LEE, Jae-Hoon SHIM, Yoo Jin DOH, Hee-Choon AHN, Young-Kwang KIM, Doo-Hyeon MOON, Jeong-Eun YANG, Su-Hyun LEE, Chi-Sik KIM, Ji-Song JUN
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Patent number: 11961742Abstract: A method for manufacturing a semiconductor device and a semiconductor device produced thereby. For example and without limitation, various aspects of this disclosure provide methods for manufacturing a semiconductor device, and semiconductor devices produced thereby, that comprise forming an interposer including a reinforcement layer.Type: GrantFiled: August 23, 2021Date of Patent: April 16, 2024Assignee: AMKOR TECHNOLOGY SINGAPORE HOLDING PTE. LTD.Inventors: Jong Sik Paek, Doo Hyun Park, Seong Min Seo, Sung Geun Kang, Yong Song, Wang Gu Lee, Eun Young Lee, Seo Yeon Ahn, Pil Je Sung
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Publication number: 20240106020Abstract: Provided is a method for recovering and reusing an active material from a positive electrode scrap.Type: ApplicationFiled: August 1, 2022Publication date: March 28, 2024Inventors: Eun-Kyu SEONG, Min-Seo KIM, Se-Ho PARK, Yong-Sik SEO, Doo-Kyung YANG, Jeong-Bae LEE
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Patent number: 11935856Abstract: A semiconductor device and manufacturing method thereof. Various aspects of the disclosure may, for example, comprise forming a back end of line layer on a dummy substrate, completing at least a first portion of an assembly, and removing the dummy substrate.Type: GrantFiled: June 21, 2021Date of Patent: March 19, 2024Assignee: Amkor Technology Singapore Holding Pte. Ltd.Inventors: Jong Sik Paek, Doo Hyun Park
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Patent number: 11917907Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.Type: GrantFiled: November 22, 2021Date of Patent: February 27, 2024Assignee: Rohm and Haas Electronic Materials Korea Ltd.Inventors: Kyoung-Jin Park, Tae-Jin Lee, Jae-Hoon Shim, Yoo Jin Doh, Hee-Choon Ahn, Young-Kwang Kim, Doo-Hyeon Moon, Jeong-Eun Yang, Su-Hyun Lee, Chi-Sik Kim, Ji-Song Jun
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Publication number: 20090021535Abstract: A liquid crystal display includes a signal controller having a luminance controller receiving image data from an external graphic source and controlling the luminance of the image data such that the luminance at the gray expressed by a specific data value of the image data is established to be 80 cd/m2, and a gamma converter outputting image data each having a gamma characteristic adapted to a gamma 2.2 curve. The gamma converter output is determined without using a look up table based on at least one difference curve having a linear portion, a quartic portion, and a critical value where the linear portion and the quartic portion intersect. The liquid crystal display further includes a data driver receiving the image data for selecting and outputting gray voltages corresponding to the image data, and an inverter controlling a lamp to emit light with a luminance of 80 cd/m2 or more.Type: ApplicationFiled: March 28, 2008Publication date: January 22, 2009Applicant: SAMSUNG ELECTONICS CO., LTD.Inventors: Seung-Woo Lee, Yun-Ju Yu, Doo-Sik Park, Jong-Seon Kim, Heui-Keun Choh, Chang-Yeong Kim
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Patent number: 7365723Abstract: A liquid crystal display includes a signal controller having a luminance controller receiving image data from an external graphic source and controlling the luminance of the image data such that the luminance at the gray expressed by a specific data value of the image data is established to be 80 cd/m2, and a gamma converter outputting image data each having a gamma characteristic adapted to a gamma 2.2 curve. The gamma converter output is determined without using a look up table based on at least one difference curve having a linear portion, a quartic portion, and a critical value where the liner portion and the quartic portion intersect. The liquid crystal display further includes a data driver receiving the image data for selecting and outputting gray voltages corresponding to the image data, and an inverter controlling a lamp to emit light with a luminance of 80 cd/m2 or more.Type: GrantFiled: November 12, 2003Date of Patent: April 29, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-Woo Lee, Yun-Ju Yu, Doo-Sik Park, Jong-Seon Kim, Heui-Keun Choh, Chang-Yeong Kim
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Publication number: 20070226538Abstract: A data-management apparatus and method, the apparatus including: a display unit to display a user interface that includes management options for a plurality of load-balancing cluster-based devices connected through a network; an input unit to receive a selection value; and a control unit to manage the plurality of load-balancing cluster-based devices according to the inputted selection value.Type: ApplicationFiled: February 7, 2007Publication date: September 27, 2007Applicant: Samsung Electronics Co., Ltd.Inventors: Min-ho Ban, Sang-moon Lee, Woo-jin Yang, Chang-sung Lee, Doo-sik Park, Soon-churl Shin
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Publication number: 20060208983Abstract: A liquid crystal display includes a signal controller including a gamma converter outputting output image data have gamma characteristic adapted to a gamma 2.2 curve based on input image data with a bit number smaller than the output image data, a color correction unit including color coefficients for performing color correction on the image data from the gamma converter, and a dithering and FRC processor reducing a bit number of the image data from the color correction unit by taking upper bits of the image data and controlling position and frequency of the upper bits of the image data; and a data driver selecting and outputting gray voltages corresponding to the image data from the signal controller.Type: ApplicationFiled: November 12, 2003Publication date: September 21, 2006Inventors: Seung-Woo Lee, Yun-Ju Yu, Doo-Sik Park, Heui-Keun Choh, Chang-Yeong Kim
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Publication number: 20060145979Abstract: A liquid crystal display includes: a signal controller including a gamma converter outputting output image data have gamma characteristic adapted to a gamma 2.Type: ApplicationFiled: November 12, 2003Publication date: July 6, 2006Inventors: Seung-Woo Lee, Yun-Ju Yu, Doo-Sik Park, Heui-Keun Choh, Chang-Yeong Kim, Yong-Koo Park
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Patent number: 7024020Abstract: An apparatus and method for generating object-labeled images based on query images in a video sequence are provided. A video sequence is divided into a plurality of shots, each of which consists of a set of frames having a similar scene, and an initial object region is extracted from each of the shots by determining whether an object image exists in key frames of the shots. Based on the initial object region extracted from each of the key frames, object regions are tracked in all frames of the shots. Then, the object regions are labeled to generate object-labeled images. Therefore, the object-labeled image generating apparatus and method can be applied regardless of the degree of motion of an object and time required to extract query objects is reduced.Type: GrantFiled: September 4, 2001Date of Patent: April 4, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Seong-deok Lee, Chang-yeong Kim, Ji-yeon Kim, Sang-kyun Kim, Young-su Moon, Doo-sik Park
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Publication number: 20050057472Abstract: A liquid crystal display includes a signal controller having a luminance controller receiving image data from an external graphic source and controlling the luminance of the image data such that the luminance at the gray expressed by a specific data value of the image data is established to be 80 cd/m2, and a gamma converter outputting image data each having a gamma characteristic adapted to the gamma 2.2 curve. The liquid crystal display further includes a data driver receiving the image data from the signal controller and selecting and outputting gray voltages corresponding to the image data, and an inverter controlling a lamp such that the lamp emits light with a luminance of 80 cd/m2 or more. With the liquid crystal display, the luminance of a backlight is determined to be a specific value larger than 80 cd/m2, and the luminance of the input image data is controlled such that the luminance of the image data at the specific data value is established to be 80 cd/m2.Type: ApplicationFiled: November 12, 2003Publication date: March 17, 2005Inventors: Seung-Woo Lee, Yun-Ju Yu, Doo-Sik Park, Jong-Seon Kim, Heui-Keun Choh, Chang-Yeong Kim
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Publication number: 20020097893Abstract: An apparatus and method for generating object-labeled images based on query images in a video sequence are provided. A video sequence is divided into a plurality of shots, each of which consists of a set of frames having a similar scene, and an initial object region is extracted from each of the shots by determining whether an object image exists in key frames of the shots. Based on the initial object region extracted from each of the key frames, object regions are tracked in all frames of the shots. Then, the object regions are labeled to generate object-labeled images. Therefore, the object-labeled image generating apparatus and method can be applied regardless of the degree of motion of an object and time required to extract query objects is reduced.Type: ApplicationFiled: September 4, 2001Publication date: July 25, 2002Inventors: Seong-Deok Lee, Chang-Yeong Kim, Ji-Yeon Kim, Sang-Kyun Kim, Young-Su Moon, Doo-Sik Park
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Color image processing method and apparatus for correcting a color signal from an input image device
Patent number: 5448380Abstract: A color image processor and method thereof which performs a first conversion on the output signal of a color image input device into the intermediate color space, and divides the region according to the deviation characteristics in the converted intermediate color space, and re-corrects the color, includes a first transform matrix, a region discriminator and a plurality of transform matrices.Type: GrantFiled: December 17, 1993Date of Patent: September 5, 1995Assignee: Samsung Electronics Co., Ltd.Inventor: Doo-sik Park