Patents by Inventor Joon Hak Oh
Joon Hak 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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Publication number: 20240315060Abstract: A photoelectric conversion device according to some example embodiments includes an upper electrode, a lower electrode, and an active layer including a donor material, an acceptor material, and a light-absorbing material and disposed between the upper electrode and the lower electrode, wherein the donor material includes a compound represented by Formula 1, and the light-absorbing material includes bis-(4-dimethylaminodithiobenzyl)-Ni(II) (BDN).Type: ApplicationFiled: March 1, 2024Publication date: September 19, 2024Applicants: Samsung Electronics Co., Ltd., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Byeongeun KWAK, Joon Hak OH, Kiryong LEE, Sang Hyuk LEE, Moon-Ki JEONG, Seungwon KIM, Songse YI, Yeseul LEE, Joowon LEE
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Patent number: 11622181Abstract: A display device includes a display panel which includes a first substrate, a second substrate, and a light emitting element layer disposed between the first substrate and the second substrate and outputting light toward the second substrate, a first sound generator which is disposed on the first substrate and outputs a first sound by vibrating the display panel, a source circuit board which is disposed on the first substrate, and a first sound circuit board which connects the first sound generator and the source circuit board.Type: GrantFiled: November 25, 2019Date of Patent: April 4, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Byeong Hee Won, Joon Hak Oh
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Publication number: 20230095829Abstract: An organic photoelectric conversion device and an image sensor, the organic photoelectric conversion device including an upper electrode; a lower electrode; and an active layer between the upper electrode and the lower electrode, wherein the active layer includes bis-(4-dimethylaminodithiobenzyl)-Ni(II) (BDN) and [6,6]-Phenyl-C71-butyric acid methyl ester (PC70BM).Type: ApplicationFiled: March 22, 2022Publication date: March 30, 2023Applicant: Seoul National University R&DB FoundationInventors: Ki-Ryong LEE, Joon Hak OH, Inho SONG, Jaeyong AHN, Junwon HAN
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Patent number: 11483638Abstract: A display device includes: a display panel; a bracket disposed under the display panel; a first vibration generator disposed under the display panel, where the first vibration generator outputs sound by vibrating the display panel in a thickness direction of the display panel; and a second vibration generator disposed under the bracket, where the second vibration generator outputs horizontal vibrations by vibrating the bracket in a horizontal direction perpendicular to the thickness direction.Type: GrantFiled: January 2, 2020Date of Patent: October 25, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Byeong Hee Won, Joon Hak Oh
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Patent number: 11388278Abstract: A display device includes: a display panel configured to display an image; a sound element on a rear side of the display panel; and a rear chassis configured to receive the display panel and protect the rear side of the display panel, and including a protruding portion protruding away from the rear side of the display panel and corresponding to the sound element. The sound element includes a pair of electrodes, and a vibration material layer between the electrodes.Type: GrantFiled: July 2, 2020Date of Patent: July 12, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Tae Hee Lee, Seock Hwan Kang, Joon Hak Oh, Jong Seo Lee
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Patent number: 11194413Abstract: A display device for a vehicle includes a stretchable display panel and a touch sensor on a first surface of the stretchable display panel and configured to sense a user's touch. The stretchable display panel includes a plurality of pixels and has a button display area and a display area adjacent the button display area. The stretchable display panel is integrally arranged on a center fascia of the vehicle that as a plurality of curved surfaces, and a step is defined between the button display area and the adjacent display area.Type: GrantFiled: June 21, 2019Date of Patent: December 7, 2021Assignees: Samsung Display Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Jong Ho Hong, Da Young Ju, Keun Kyu Song, Jae Min Shin, Young Hoon Oh, Joon Hak Oh, Ji Min Ryu, So Yon Jeong, Hye Jin Joo, Ju Yeong Kwon
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Patent number: 11194395Abstract: A display device includes a display panel, and a plurality of piezoelectric elements arranged on one surface of the display panel, wherein each of the plurality of piezoelectric elements includes a pressure sensor configured to detect pressure applied to a surface opposite to the one surface of the display panel, and a haptic device configured to generate vibration according to a driving voltage.Type: GrantFiled: November 19, 2019Date of Patent: December 7, 2021Assignee: Samsung Display Co., Ltd.Inventors: Joon Hak Oh, Jae Been Lee, Byeong Hee Won
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Publication number: 20210351254Abstract: A display device includes a display panel which contains an LED which emits light, a first layer containing a porous polymer and disposed on the display panel, a second layer containing a metal halide and disposed on the first layer, and a lenticular lens disposed on the display panel, where the first layer has a first refractive index and the second layer has a second refractive index less than the first refractive index.Type: ApplicationFiled: March 4, 2021Publication date: November 11, 2021Inventors: JIWON LEE, SUJUNG HUH, Joon Hak OH, Yoon Ho LEE, JIYEON SEO, YOUNGSANG HA
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Patent number: 11169608Abstract: A display device includes a display panel, a main vibrator disposed on the display panel configured to generate a main vibration wave, and a plurality of sub-vibrators disposed on the display panel and spaced apart from the main vibrator and configured to the plurality of sub-vibrators configured to generate sub-vibration waves, respectively, wherein the plurality of sub-vibrators includes a first sub-vibrator disposed at a first distance from the main vibrator in a plan view, the first sub-vibrator being configured to generate a first sub-vibration wave; and a second sub-vibrator disposed at a second distance from the main vibrator in the plan view, the second sub-vibrator being configured to generate a second sub-vibration wave having a phase different from the first sub-vibration wave, and, wherein the second distance is different from the first distance.Type: GrantFiled: June 29, 2020Date of Patent: November 9, 2021Assignee: Samsung Display Co., Ltd.Inventors: Joon Hak Oh, Jae Been Lee, Byeong Hee Won
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Patent number: 11109129Abstract: A display device including: a display panel having a substrate including a plurality of islands and a plurality of bridges coupling the islands to each other; and a plurality of actuators provided on first surfaces of at least one or more of the islands of the substrate. The actuators may vibrate a first area of the display panel that includes portions overlapping with the respective actuators.Type: GrantFiled: August 23, 2019Date of Patent: August 31, 2021Assignee: Samsung Display Co., Ltd.Inventors: Byeong Hee Won, Yi Joon Ahn, Jung Hun Noh, Ji Yeon Seo, Joon Hak Oh
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Publication number: 20210041954Abstract: A display device includes a display panel, a main vibrator disposed on the display panel configured to generate a main vibration wave, and a plurality of sub-vibrators disposed on the display panel and spaced apart from the main vibrator and configured to the plurality of sub-vibrators configured to generate sub-vibration waves, respectively, wherein the plurality of sub-vibrators includes a first sub-vibrator disposed at a first distance from the main vibrator in a plan view, the first sub-vibrator being configured to generate a first sub-vibration wave; and a second sub-vibrator disposed at a second distance from the main vibrator in the plan view, the second sub-vibrator being configured to generate a second sub-vibration wave having a phase different from the first sub-vibration wave, and, wherein the second distance is different from the first distance.Type: ApplicationFiled: June 29, 2020Publication date: February 11, 2021Inventors: Joon Hak OH, Jae Been Lee, Byeong Hee Won
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Publication number: 20200336579Abstract: A display device includes: a display panel configured to display an image; a sound element on a rear side of the display panel; and a rear chassis configured to receive the display panel and protect the rear side of the display panel, and including a protruding portion protruding away from the rear side of the display panel and corresponding to the sound element. The sound element includes a pair of electrodes, and a vibration material layer between the electrodes.Type: ApplicationFiled: July 2, 2020Publication date: October 22, 2020Inventors: Tae Hee LEE, Seock Hwan KANG, Joon Hak OH, Jong Seo LEE
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Publication number: 20200296493Abstract: A display device includes: a display panel; a bracket disposed under the display panel; a first vibration generator disposed under the display panel, where the first vibration generator outputs sound by vibrating the display panel in a thickness direction of the display panel; and a second vibration generator disposed under the bracket, where the second vibration generator outputs horizontal vibrations by vibrating the bracket in a horizontal direction perpendicular to the thickness direction.Type: ApplicationFiled: January 2, 2020Publication date: September 17, 2020Inventors: Byeong Hee WON, Joon Hak OH
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Publication number: 20200252707Abstract: A display device includes a display panel which includes a first substrate, a second substrate, and a light emitting element layer disposed between the first substrate and the second substrate and outputting light toward the second substrate, a first sound generator which is disposed on the first substrate and outputs a first sound by vibrating the display panel, a source circuit board which is disposed on the first substrate, and a first sound circuit board which connects the first sound generator and the source circuit board.Type: ApplicationFiled: November 25, 2019Publication date: August 6, 2020Inventors: Byeong Hee WON, Joon Hak OH
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Patent number: 10735571Abstract: A display device includes: a display panel configured to display an image; a sound element on a rear side of the display panel; and a rear chassis configured to receive the display panel and protect the rear side of the display panel, and including a protruding portion protruding away from the rear side of the display panel and corresponding to the sound element. The sound element includes a pair of electrodes, and a vibration material layer between the electrodes.Type: GrantFiled: January 17, 2019Date of Patent: August 4, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Tae Hee Lee, Seock Hwan Kang, Joon Hak Oh, Jong Seo Lee
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Publication number: 20200241642Abstract: A display device includes a display panel, and a plurality of piezoelectric elements arranged on one surface of the display panel, wherein each of the plurality of piezoelectric elements includes a pressure sensor configured to detect pressure applied to a surface opposite to the one surface of the display panel, and a haptic device configured to generate vibration according to a driving voltage.Type: ApplicationFiled: November 19, 2019Publication date: July 30, 2020Inventors: Joon Hak OH, Jae Been LEE, Byeong Hee WON
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Publication number: 20200210003Abstract: A display device for a vehicle includes a stretchable display panel and a touch sensor on a first surface of the stretchable display panel and configured to sense a user's touch. The stretchable display panel includes a plurality of pixels and has a button display area and a display area adjacent the button display area. The stretchable display panel is integrally arranged on a center fascia of the vehicle that as a plurality of curved surfaces, and a step is defined between the button display area and the adjacent display area.Type: ApplicationFiled: June 21, 2019Publication date: July 2, 2020Inventors: Jong Ho Hong, Da Young Ju, Keun Kyu Song, Jae Min Shin, Young Hoon Oh, Joon Hak Oh, Ji Min Ryu, So Yon Jeong, Hye Jin Joo, Ju Yeong Kwon
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Publication number: 20200137472Abstract: A display device including: a display panel having a substrate including a plurality of islands and a plurality of bridges coupling the islands to each other; and a plurality of actuators provided on first surfaces of at least one or more of the islands of the substrate. The actuators may vibrate a first area of the display panel that includes portions overlapping with the respective actuators.Type: ApplicationFiled: August 23, 2019Publication date: April 30, 2020Inventors: Byeong Hee WON, Yi Joon AHN, Jung Hun NOH, Ji Yeon SEO, Joon Hak OH
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Patent number: RE47802Abstract: A display device unit includes: a display device; and a sound element disposed at a side surface or a rear surface of the display device, where the sound element includes a vibration material layer which provides a sound based on an electric field applied therein, and a pair of electrodes which generates the electric field in the vibration material layer.Type: GrantFiled: July 2, 2018Date of Patent: January 7, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ha-Yun Kang, Joon Hak Oh, Jong Seo Lee
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Patent number: RE49756Abstract: A display device unit includes: a display device; and a sound element disposed at a side surface or a rear surface of the display device, where the sound element includes a vibration material layer which provides a sound based on an electric field applied therein, and a pair of electrodes which generates the electric field in the vibration material layer.Type: GrantFiled: June 11, 2019Date of Patent: December 12, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ha-Yun Kang, Joon Hak Oh, Jong Seo Lee