Patents by Inventor Ja Hun Koo
Ja Hun Koo 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: 20240098382Abstract: An image processing device including: a decision pixel manager for setting a decision area for a defect candidate pixel, and determining a first decision pixel and a second decision pixel, based on first phase information of pixels included in the decision area with respect to a first modulation frequency of a sensing light source among the pixels; a target pixel determiner for calculating a phase difference between the first decision pixel and the second decision pixel, based on second phase information of the pixels with respect to a second modulation frequency of the sensing light source, and determining the defect candidate pixel as a target pixel, corresponding to that the phase difference exceeds a predetermined reference value; and a phase corrector for changing a phase of the target pixel, based on the phase difference.Type: ApplicationFiled: February 28, 2023Publication date: March 21, 2024Applicant: SK hynix Inc.Inventors: Woo Young JEONG, Ja Min KOO, Tae Hyun KIM, Jae Hwan JEON, Chang Hun CHO
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Patent number: 11899314Abstract: A color conversion display panel includes a substrate. A color conversion portion is disposed on the substrate. The color conversion portion includes a semiconductor nanocrystal. A transmission portion is disposed on the substrate. A blue light blocking filter is disposed between the substrate and the color conversion portion. The blue light blocking filter includes a first convex portion that protrudes toward the substrate. The transmission portion includes a first region including a scatterer and a second region including a second convex portion that protrudes toward the substrate.Type: GrantFiled: December 27, 2022Date of Patent: February 13, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ja Hun Koo, Kyung-Hun Lee, Tae-Jong Jun, Woo-Young Cheon
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Publication number: 20230142036Abstract: A color conversion display panel includes a substrate. A color conversion portion is disposed on the substrate. The color conversion portion includes a semiconductor nanocrystal. A transmission portion is disposed on the substrate. A blue light blocking filter is disposed between the substrate and the color conversion portion. The blue light blocking filter includes a first convex portion that protrudes toward the substrate. The transmission portion includes a first region including a scatterer and a second region including a second convex portion that protrudes toward the substrate.Type: ApplicationFiled: December 27, 2022Publication date: May 11, 2023Inventors: JA HUN KOO, KYUNG-HUN LEE, TAE-JONG JUN, WOO-YOUNG CHEON
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Patent number: 11567367Abstract: A color conversion display panel includes a substrate. A color conversion portion is disposed on the substrate. The color conversion portion includes a semiconductor nanocrystal. A transmission portion is disposed on the substrate. A blue light blocking filter is disposed between the substrate and the color conversion portion. The blue light blocking filter includes a first convex portion that protrudes toward the substrate. The transmission portion includes a first region including a scatterer and a second region including a second convex portion that protrudes toward the substrate.Type: GrantFiled: February 15, 2022Date of Patent: January 31, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ja Hun Koo, Kyung-Hun Lee, Tae-Jong Jun, Woo-Young Cheon
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Publication number: 20220171240Abstract: A color conversion display panel includes a substrate. A color conversion portion is disposed on the substrate. The color conversion portion includes a semiconductor nanocrystal. A transmission portion is disposed on the substrate. A blue light blocking filter is disposed between the substrate and the color conversion portion. The blue light blocking filter includes a first convex portion that protrudes toward the substrate. The transmission portion includes a first region including a scatterer and a second region including a second convex portion that protrudes toward the substrate.Type: ApplicationFiled: February 15, 2022Publication date: June 2, 2022Inventors: Ja Hun KOO, Kyung-Hun LEE, Tae-Jong JUN, Woo-Young CHEON
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Patent number: 11300352Abstract: The present disclosure relates to an external member for home appliances and a manufacturing method therefor. The external member has through-holes in a metal layer for transmitting light emitted from a light source, such as a light-emitting device mounted rear of the external member, are not exposed to the outside by a film layer attached to a front surface of the metal layer when the light-emitting device is turned off. The external member for home appliances can provides appearance of home appliances with improved luxuriousness and aesthetic sensibility.Type: GrantFiled: April 14, 2020Date of Patent: April 12, 2022Assignee: LG Electronics Inc.Inventors: Sung Gab Kim, So Hee Bak, Ja Hun Koo, Youngwoo Kim, Pojin Kim, Byungchun Moon, Kuhyeong Lee, Hye Sun Jung
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Patent number: 11269217Abstract: A color conversion display panel includes a substrate. A color conversion portion is disposed on the substrate. The color conversion portion includes a semiconductor nanocrystal. A transmission portion is disposed on the substrate. A blue light blocking filter is disposed between the substrate and the color conversion portion. The blue light blocking filter includes a first convex portion that protrudes toward the substrate. The transmission portion includes a first region including a scatterer and a second region including a second convex portion that protrudes toward the substrate.Type: GrantFiled: December 14, 2020Date of Patent: March 8, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ja Hun Koo, Kyung-Hun Lee, Tae-Jong Jun, Woo-Young Cheon
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Publication number: 20210132445Abstract: A color conversion display panel includes a substrate. A color conversion portion is disposed on the substrate. The color conversion portion includes a semiconductor nanocrystal. A transmission portion is disposed on the substrate. A blue light blocking filter is disposed between the substrate and the color conversion portion. The blue light blocking filter includes a first convex portion that protrudes toward the substrate. The transmission portion includes a first region including a scatterer and a second region including a second convex portion that protrudes toward the substrate.Type: ApplicationFiled: December 14, 2020Publication date: May 6, 2021Inventors: JA HUN KOO, Kyung-Hun Lee, Tae-Jong Jun, Woo-Young Cheon
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Patent number: 10877318Abstract: A color conversion display panel includes a substrate. A color conversion portion is disposed on the substrate. The color conversion portion includes a semiconductor nanocrystal. A transmission portion is disposed on the substrate. A blue light blocking filter is disposed between the substrate and the color conversion portion. The blue light blocking filter includes a first convex portion that protrudes toward the substrate. The transmission portion includes a first region including a scatterer and a second region including a second convex portion that protrudes toward the substrate.Type: GrantFiled: August 15, 2019Date of Patent: December 29, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ja Hun Koo, Kyung-Hun Lee, Tae-Jong Jun, Woo-Young Cheon
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Publication number: 20200240703Abstract: The present disclosure relates to an external member for home appliances and a manufacturing method therefor. The external member has through-holes in a metal layer for transmitting light emitted from a light source, such as a light-emitting device mounted rear of the external member, are not exposed to the outside by a film layer attached to a front surface of the metal layer when the light-emitting device is turned off. The external member for home appliances can provides appearance of home appliances with improved luxuriousness and aesthetic sensibility.Type: ApplicationFiled: April 14, 2020Publication date: July 30, 2020Inventors: Sung Gab KIM, So Hee BAK, Ja Hun KOO, Youngwoo KIM, Pojin KIM, Byungchun MOON, Kuhyeong LEE, Hye Sun JUNG
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Patent number: 10685591Abstract: The present disclosure is related to a display device including: a display panel including a display surface displaying an image; and a morphing driver disposed at an opposite side of the display surface of the display panel and physically controlling a height of the display surface in a first direction which is substantially perpendicular to the display surface according to depth information of input image data, wherein the morphing driver comprises at least one among a piezoelectric film, an electroactive polymer, and a magnetic generator.Type: GrantFiled: April 5, 2019Date of Patent: June 16, 2020Assignee: Samsung Display Co., Ltd.Inventors: Ja Hun Koo, Hak Sun Kim, Kyung-Hun Lee
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Patent number: 10641542Abstract: The present disclosure describes an external member for home appliances and a manufacturing method therefor. The external member includes a metal layer that defines through-holes for transmitting light emitted from a light source including a light-emitting device mounted on a rear surface of the metal layer. The through-holes are not exposed to an outside by a film layer attached to a front surface of the metal layer when the light-emitting device is turned off. The external member for home appliances provides improved luxuriousness and aesthetic sensibility to the home appliances.Type: GrantFiled: September 6, 2016Date of Patent: May 5, 2020Assignee: LG Electronics Inc.Inventors: Sung Gab Kim, So Hee Bak, Ja Hun Koo, Youngwoo Kim, Pojin Kim, Byungchun Moon, Kuhyeong Lee, Hye Sun Jung
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Publication number: 20190369445Abstract: A color conversion display panel includes a substrate. A color conversion portion is disposed on the substrate. The color conversion portion includes a semiconductor nanocrystal. A transmission portion is disposed on the substrate. A blue light blocking filter is disposed between the substrate and the color conversion portion. The blue light blocking filter includes a first convex portion that protrudes toward the substrate. The transmission portion includes a first region including a scatterer and a second region including a second convex portion that protrudes toward the substrate.Type: ApplicationFiled: August 15, 2019Publication date: December 5, 2019Inventors: JA HUN KOO, KYUNG-HUN LEE, TAE-JONG JUN, WOO-YOUNG CHEON
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Patent number: 10409110Abstract: A color conversion display panel includes a substrate. A color conversion portion is disposed on the substrate. The color conversion portion includes a semiconductor nanocrystal. A transmission portion is disposed on the substrate. A blue light blocking filter is disposed between the substrate and the color conversion portion. The blue light blocking filter includes a first convex portion that protrudes toward the substrate. The transmission portion includes a first region including a scatterer and a second region including a second convex portion that protrudes toward the substrate.Type: GrantFiled: January 12, 2018Date of Patent: September 10, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ja Hun Koo, Kyung-Hun Lee, Tae-Jong Jun, Woo-Young Cheon
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Publication number: 20190236991Abstract: The present disclosure is related to a display device including: a display panel including a display surface displaying an image; and a morphing driver disposed at an opposite side of the display surface of the display panel and physically controlling a height of the display surface in a first direction which is substantially perpendicular to the display surface according to depth information of input image data, wherein the morphing driver comprises at least one among a piezoelectric film, an electroactive polymer, and a magnetic generator.Type: ApplicationFiled: April 5, 2019Publication date: August 1, 2019Inventors: Ja Hun KOO, Hak Sun KIM, Kyung-Hun LEE
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Publication number: 20190041700Abstract: A color conversion display panel includes a substrate. A color conversion portion is disposed on the substrate. The color conversion portion includes a semiconductor nanocrystal. A transmission portion is disposed on the substrate. A blue light blocking filter is disposed between the substrate and the color conversion portion. The blue light blocking filter includes a first convex portion that protrudes toward the substrate. The transmission portion includes a first region including a scatterer and a second region including a second convex portion that protrudes toward the substrate.Type: ApplicationFiled: January 12, 2018Publication date: February 7, 2019Inventors: Ja Hun KOO, Kyung-Hun LEE, Tae-Jong JUN, Woo-Young CHEON
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Publication number: 20180274848Abstract: The present invention relates to an external member for home appliances and a manufacturing method therefor. According to the present invention, through-holes for transmitting light emitted from a light source, such as a light-emitting device mounted on a rear surface, are not exposed to the outside by a film layer attached to a front surface of a metal layer when the light of the light-emitting device is turned off, such that an external member for home appliances with improved luxuriousness and aesthetic sensibility with respect to the appearance of home appliances can be implemented.Type: ApplicationFiled: September 6, 2016Publication date: September 27, 2018Inventors: Sung Gab KIM, So Hee BAK, Ja Hun KOO, Youngwoo KIM, Pojin KIM, Byungchun MOON, Kuhyeong LEE, Hye Sun JUNG
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Patent number: 9928800Abstract: A display apparatus includes a display panel. The display panel includes a high sub-pixel, a low sub-pixel and a toggle voltage input circuit. The high sub-pixel may include a first switching element connected to a gate line extending in a first direction and a data line extending in a second direction crossing with the first direction. The low sub-pixel may include a second switching element connected to the gate line and the data line and disposed opposite to the high sub-pixel with reference to the gate line, and a third switching element connected to the second switching element and a storage line. The toggle voltage input circuit may be connected to the storage line to transmit a toggle voltage to the low sub-pixel. The toggle voltage may be capable of being varied periodically.Type: GrantFiled: May 3, 2016Date of Patent: March 27, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jong-Woon Kim, Ja-Hun Koo, Kyu-Jin Park, Su-Han Woo
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Patent number: 9870750Abstract: A liquid crystal display device includes a gate driving unit connected to an ith gate line and a first compensation line, a data driving unit connected to a jth data line and a pixel unit including a first switching element including a first electrode connected to the jth data line, a pixel electrode connected to second electrode of the first switching element, and a compensation capacitor including a first electrode connected to the first compensation line and a second electrode connected to the pixel electrode, where the gate driving unit includes a second switching element including a gate electrode connected to an i?1th gate line, a first electrode connected to a reset line, and a second electrode connected to the first compensation line, and a third switching element including a gate electrode connected to an i+1th gate line and a first electrode connected to the first compensation line.Type: GrantFiled: May 5, 2016Date of Patent: January 16, 2018Assignee: SAMSUNG DISPLAY CO. LTD.Inventors: Ja Hun Koo, Hak Sun Kim, Su Han Woo, Kyung Hun Lee
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Patent number: 9865194Abstract: A display system includes a graphic processor and a display apparatus. The graphic processor supplies a first image signal and a first synchronization signal. The display apparatus is driven in a normal mode in which a first image is displayed, during a first period, based on the first image signal and the first synchronization signal provided from the graphic processor and in a panel self refresh (PSR) mode in which a second image is displayed based on a second image signal stored in a frame buffer of the display apparatus and a second synchronization signal generated in the display apparatus, and transmits the second synchronization signal of the PSR mode to the graphic processor when a driving mode of the display apparatus is changed from the PSR mode to the normal mode. The graphic processor is configured to generate the first synchronization signal synchronized with the second synchronization signal.Type: GrantFiled: January 8, 2016Date of Patent: January 9, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ja-Hun Koo, Jong-Deuk Moon, Kyung-Hun Lee