Patents by Inventor Yong-chul Cho
Yong-chul 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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Patent number: 11974455Abstract: A display device includes a substrate; a light-emitting element layer on the substrate; a first thin-film encapsulation layer that is on the light-emitting element layer, has an upper surface conforming an upper surface of the light-emitting element layer, and includes a recessed portion; a bank layer on the first thin-film encapsulation layer and having an opening overlapping the recessed portion; a wavelength conversion layer in the opening on the first thin-film encapsulation layer and at least partially in the recessed portion; a first inorganic layer on the bank layer and the wavelength conversion layer; an organic layer on the first inorganic layer; and a second inorganic layer on the organic layer.Type: GrantFiled: September 3, 2021Date of Patent: April 30, 2024Assignee: Samsung Display Co., Ltd.Inventors: Myung Chul Yeo, Yong Tack Kim, Eung Seok Park, Hee Wook Yoon, Yoon Hyeung Cho
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Publication number: 20240128502Abstract: An embodiment solid electrolyte includes a first compound and a second compound. The first compound is represented by a first chemical formula Li7-aPS6-a(X11-bX2b)a, wherein X1 and X2 are the same or different and each represents F, Cl, Br, or I, and wherein 0<a?2 and 0<b<1, and the second compound is represented by a second chemical formula Li7-cP1-2dMdS6-c-3d(X11-eX2e)c, wherein X1 and X2 are the same or different and each represents F, Cl, Br, or I, wherein M represents Ge, Si, Sn, or any combination thereof, and wherein 0<c?2, 0<d<0.5, and 0<e<1.Type: ApplicationFiled: August 14, 2023Publication date: April 18, 2024Inventors: Sa Heum Kim, Yong Jun Jang, Yong Gu Kim, Sung Man Cho, Sun Ho Choi, Seong Hyeon Choi, Kyu Sung Park, Young Gyoon Ryu, Suk Gi Hong, Pil Sang Yun, Myeong Ju Ha, Hyun Beom Kim, Hwi Chul Yang
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Publication number: 20240092228Abstract: A seat for a vehicle, includes a second row center seat and a second row side seat provided on a partition wall positioned rearward of a driver seat, the second row center seat may move leftward or rightward, and an interval between the seats may be increased in a state in which the second row center seat is moved in a right direction away from the second row side seat, which makes it possible to maximally prevent body contact between a passenger in the second row center seat and a passenger in the second row side seat.Type: ApplicationFiled: January 20, 2023Publication date: March 21, 2024Applicants: Hyundai Motor Company, Kia Corporation, Hyundai Transys Inc.Inventors: Jung Sang YOU, Yong Chul Kim, Dae Hee Lee, Eun Sue Kim, Jae Hoon Cho, Han Kyung Park, Jae Sung Shin, Hae Dong Kwak, Jun Sik Hwang, Gwon Hwa Bok
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Publication number: 20240067056Abstract: The present disclosure relates to a vehicle rear seat including: a center seat; and side seats located on the left and right of the center seat, wherein, the center seat is capable of protruding by moving the center seat forward with respect to the side seats, and in the state in which the center seat protrudes forward, it is possible to increase an inter-passenger distance so that physical contact between the passenger of the center seat and the passenger of each of the side seats can be prevented as much as possible.Type: ApplicationFiled: March 6, 2023Publication date: February 29, 2024Inventors: Jung Sang You, Yong Chul Kim, Dae Hee Lee, Eun Sue Kim, Jae Hoon Cho, Han Kyung Park, Jae Sung Shin, Hae Dong Kwak, Jun Sik Hwang, Gwon Hwa Bok
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Patent number: 10311298Abstract: Exemplary embodiments for a biometric camera system for a mobile device, comprise: a near infrared (NIR) light source on the mobile device that flashes a user of the mobile device with near infrared light during image capture; a biometric camera located on the mobile device offset from the NIR light source, the biometric camera comprising: an extended depth of field (EDOF) imaging lens; a bandpass filter located adjacent to the EDOF imaging lens to reject ambient light during image capture; and an imaging sensor located adjacent the bandpass filter that converts an optical image of an object into an electronic signal for image processing; and a processor configured to receive video images of an iris of a user from the image sensor, and attempt to match the video images of the iris with previously registered images stored in an iris database, wherein if a match is found, the user is authenticated.Type: GrantFiled: May 1, 2018Date of Patent: June 4, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Ilia Ovsiannikov, Yibing Michelle Wang, Yong-Hwa Park, Yong-Chul Cho, Heesun Yoon, ChangYoung Park, Dirk Smits
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Publication number: 20180268215Abstract: Exemplary embodiments for a biometric camera system for a mobile device, comprise: a near infrared (NIR) light source on the mobile device that flashes a user of the mobile device with near infrared light during image capture; a biometric camera located on the mobile device offset from the NIR light source, the biometric camera comprising: an extended depth of field (EDOF) imaging lens; a bandpass filter located adjacent to the EDOF imaging lens to reject ambient light during image capture; and an imaging sensor located adjacent the bandpass filter that converts an optical image of an object into an electronic signal for image processing; and a processor configured to receive video images of an iris of a user from the image sensor, and attempt to match the video images of the iris with previously registered images stored in an iris database, wherein if a match is found, the user is authenticated.Type: ApplicationFiled: May 1, 2018Publication date: September 20, 2018Inventors: Ilia Ovsiannikov, Yibing Michelle Wang, Yong-Hwa Park, Yong-Chul Cho, Heesun Yoon, ChangYoung Park, Dirk Smits
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Patent number: 9971937Abstract: Exemplary embodiments for a biometric camera system for a mobile device, comprise: a near infrared (NIR) light source on the mobile device that flashes a user of the mobile device with near infrared light during image capture; a biometric camera located on the mobile device offset from the NIR light source, the biometric camera comprising: an extended depth of field (EDOF) imaging lens; a bandpass filter located adjacent to the EDOF imaging lens to reject ambient light during image capture; and an imaging sensor located adjacent the bandpass filter that converts an optical image of an object into an electronic signal for image processing; and a processor configured to receive video images of an iris of a user from the image sensor, and attempt to match the video images of the iris with previously registered images stored in an iris database, wherein if a match is found, the user is authenticated.Type: GrantFiled: September 29, 2014Date of Patent: May 15, 2018Assignee: Samsung Electronics Co., Ltd.Inventors: Ilia Ovsiannikov, Yibing (Michelle) Wang, Yong-Hwa Park, Yong-Chul Cho, Heesun Yoon, ChangYoung Park, Dirk Smits
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Publication number: 20180121724Abstract: Exemplary embodiments for a biometric camera system for a mobile device, comprise: a near infrared (NIR) light source on the mobile device that flashes a user of the mobile device with near infrared light during image capture; a biometric camera located on the mobile device offset from the NIR light source, the biometric camera comprising: an extended depth of field (EDOF) imaging lens; a bandpass filter located adjacent to the EDOF imaging lens to reject ambient light during image capture; and an imaging sensor located adjacent the bandpass filter that converts an optical image of an object into an electronic signal for image processing; and a processor configured to receive video images of an iris of a user from the image sensor, and attempt to match the video images of the iris with previously registered images stored in an iris database, wherein if a match is found, the user is authenticated.Type: ApplicationFiled: September 29, 2014Publication date: May 3, 2018Inventors: Ilia Ovsiannikov, Yibing (Michelle) Wang, Yong-Hwa Park, Yong-Chul Cho, Heesun Yoon, ChangYoung Park, Dirk Smits
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Patent number: 9894347Abstract: Provided is a 3-dimensional (3D) image acquisition apparatus and a method of driving the same. The 3D image acquisition apparatus includes a light source, an optical shutter, an image sensor, an image signal processor, and a controller. The light source is configured to project illumination light on an object. The optical shutter is configured to modulate the illumination light reflected from the object with a predetermined gain waveform. The image sensor is configured to generate a depth image by detecting the illumination light modulated by the optical shutter. The image signal processor is configured to calculate a distance from the 3D image acquisition apparatus to the object using the depth image generated by the image sensor. The controller is configured to control an operation of the light source and an operation of the optical shutter.Type: GrantFiled: April 14, 2014Date of Patent: February 13, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hee-sun Yoon, Jang-woo You, Yong-hwa Park, Yong-chul Cho, Min-chul Yu
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Patent number: 9451240Abstract: A 3-dimensional (3D) image acquisition apparatus capable of simultaneously obtaining a color image and a depth image in a single shooting operation is provided. The apparatus includes a light source for radiating illumination light having a predetermined wavelength onto an object; a lens unit having at least four object lenses; an image sensor including at least four sensing regions for individually receiving light focused by the object lenses and for generating images; and at least three optical shutters individually facing at least three of the at least four object lenses and for modulating incident light with predetermined gain waveforms.Type: GrantFiled: August 7, 2013Date of Patent: September 20, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jang-woo You, Yong-hwa Park, Hee-sun Yoon, Yong-chul Cho
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Patent number: 9190545Abstract: An optical device is provided including an active layer having two outer barriers and a coupled quantum well between the two outer barriers. The coupled quantum well includes a first quantum well layer, a second quantum well layer, a third quantum well layer, a first coupling barrier between the first quantum well layer and the second quantum well layer, and a second coupling barrier between the second quantum well layer and the third quantum well layer. A thickness of the first quantum well layer and a thickness of the third quantum well layer are each different from a thickness of the second quantum well layer. Also, an energy level of the first quantum well layer and an energy level of the third quantum well layer are each different from an energy level of the second quantum well layer.Type: GrantFiled: May 21, 2014Date of Patent: November 17, 2015Assignees: SAMSUNG ELECTRONICS CO., LTD., GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Yong-chul Cho, Yong-tak Lee, Chang-young Park, Byung-hoon Na, Yong-hwa Park, Gun-wu Ju
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Patent number: 9188662Abstract: A beam splitter and a 3D image acquisition apparatus including the beam splitter are provided. The beam splitter includes a light incident surface on which light having a first wavelength and light having a second wavelength are incident; a beam splitting surface which is inclined to the light incident surface and reflects the light having the first wavelength and transmits the light having the second wavelength; a first light exit surface through which the light having the first wavelength reflected from the beam splitting surface exits; a first reflective surface which reflects the light having the second wavelength transmitted by the beam splitting surface; a second reflective surface which reflects the light having the second wavelength reflected from the first reflective surface; and a second light exit surface through which the light having the second wavelength reflected from the second reflective surface exits.Type: GrantFiled: June 16, 2011Date of Patent: November 17, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jang-woo You, Yong-hwa Park, Yong-chul Cho
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Patent number: 9182614Abstract: A large-area transmissive type optical image modulator, a method of manufacturing the same, and an optical apparatus including the transmissive type optical image modulator are provided. The large-area transmissive type optical image modulator includes: a base substrate; a first expitaxial layer formed on the base substrate; a second expitaxial layer formed on the first expitaxial layer; a first electrode formed on the first expitaxial layer and spaced apart from the second expitaxial layer; a second electrode formed on the second expitaxial layer; and a transparent substrate covering the second expitaxial layer and the second electrode, wherein the base substrate includes a through hole corresponding to a light emitting area, and the first expitaxial layer may include an n-type or p-type doping material.Type: GrantFiled: December 21, 2012Date of Patent: November 10, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong-chul Cho, Sang-hun Lee, Yong-hwa Park, Chang-young Park, Jong-oh Kwon, Jang-woo You, Hee-sun Yoon
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Patent number: 9151711Abstract: An optoelectronic shutter, a method of operating the same, and an optical apparatus including the optoelectronic shutter are provided. The optoelectronic shutter includes a phototransistor which generates an output signal from incident input light and a light emitting diode serially connected to the phototransistor. The light emitting diode outputs output light according to the output signal, and the output signal is gain-modulated according to a modulation of a current gain of the phototransistor.Type: GrantFiled: October 10, 2013Date of Patent: October 6, 2015Assignees: SAMSUNG ELECTRONICS CO., LTD., GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Yong-chul Cho, Jae-hyung Jang, Yong-hwa Park, Chang-soo Park, Jong-In Song
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Patent number: 9082909Abstract: Provided is an optical device which includes an active layer which includes at least two outer barriers and at least one coupled quantum well, each of the at least one coupled quantum well is sandwiched between the at least two outer barriers. Each of the at least one coupled quantum well includes at least three quantum well layers and at least two coupling barriers interposed between the at least three quantum layers. The at least two coupling barriers have a potential energy which is higher than a ground level and is lower than energy levels of the at least two outer barriers.Type: GrantFiled: January 6, 2014Date of Patent: July 14, 2015Assignees: SAMSUNG ELECTRONICS CO., LTD., GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Yong-chul Cho, Yong-tak Lee, Chang-young Park, Byung-hoon Na, Yong-hwa Park, Gun-wu Ju, Hee-ju Chio
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Patent number: 9051178Abstract: A transmissive light modulator including a first reflection layer; a first active layer, arranged on the first reflection layer and including a plurality of quantum well layers and a plurality of barrier layers; a second reflection layer arranged on the first active layer; a second active layer, arranged on the second reflection layer and including a plurality of quantum well layers and a plurality of barrier layers; and a third reflection layer arranged on the second active layer, wherein the first reflection layer and the third reflection layer are each doped with a first type dopant, and the second reflection layer is doped with a second type dopant, which is electrically opposite to the first type dopant.Type: GrantFiled: September 14, 2012Date of Patent: June 9, 2015Assignees: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong-chul Cho, Yong-tak Lee, Jang-woo You, Byung-hoon Na, Yong-hwa Park, Chang-young Park, Hee-ju Chio, Gun-wu Ju
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Publication number: 20150153628Abstract: An optical modulator includes: a bottom reflective layer; an active layer which is disposed on the bottom reflective layer and includes a multiple quantum well layer; and a top reflective layer which is disposed on the active layer, the top reflective layer including a first top reflective layer which is disposed on the active layer, a first cavity layer which is disposed on the first top reflective layer, a second top reflective layer which is disposed on the first cavity layer, a second cavity layer which is disposed on the second top reflective layer, and a third top reflective layer which is disposed on the second cavity layer. When a center wavelength of an incident light to be modulated is ?, the active layer and the first and second cavity layers have an optical thickness that is an integer multiple of ?/2 to provide an individual resonant cavity.Type: ApplicationFiled: February 12, 2015Publication date: June 4, 2015Applicants: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong-Chul CHO, Yong-Tak LEE, Yong-Hwa PARK, Byung-Hoon NA
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Publication number: 20150138620Abstract: A transmissive image modulator for allowing image modulation over a wide bandwidth with multiple Fabry-Perot resonant modes and multiple absorption modes is provided. The transmissive image modulator includes a lower reflection layer; an active layer disposed on the lower reflection layer, including multiple quantum well layers and multiple barrier layers; an upper reflection layer disposed on the active layer; and at least one micro-cavity layer disposed in at least one of the lower and upper reflection layer. The active layer and the at least one micro-cavity layer have thicknesses of a multiple of ?/2, where ? is a resonant wavelength.Type: ApplicationFiled: December 16, 2014Publication date: May 21, 2015Applicants: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong-chul CHO, Yong-tak LEE, Byung-hoon NA, Chang-young PARK, Yong-hwa PARK, Jang-woo YOU, Hee-ju CHOI
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Publication number: 20150123077Abstract: An optical device is provided including an active layer having two outer barriers and a coupled quantum well between the two outer barriers. The coupled quantum well includes a first quantum well layer, a second quantum well layer, a third quantum well layer, a first coupling barrier between the first quantum well layer and the second quantum well layer, and a second coupling barrier between the second quantum well layer and the third quantum well layer. A thickness of the first quantum well layer and a thickness of the third quantum well layer are each different from a thickness of the second quantum well layer. Also, an energy level of the first quantum well layer and an energy level of the third quantum well layer are each different from an energy level of the second quantum well layer.Type: ApplicationFiled: May 21, 2014Publication date: May 7, 2015Applicants: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong-chul CHO, Yong-tak LEE, Chang-young PARK, Byung-hoon NA, Yong-hwa PARK, Gun-wu JU
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Patent number: 8902411Abstract: A 3 dimensional (3D) image acquisition apparatus and a method of extracting depth information in the 3D image acquisition apparatus are provided. The method of extracting depth information includes sequentially projecting N (N is a natural number equal to or greater than 3) different pieces of projection light onto a object; modulating N pieces of reflection light reflected from the object with an optical modulation signal having a gain waveform; generating N images by capturing the N pieces of modulated reflection light; generating a first averaged image by multiplying the N images by primary weights and generating a second averaged image by multiplying the N images by secondary weights; acquiring an average phase delay from the first and second averaged images; and calculating a distance to the object from the average phase delay.Type: GrantFiled: June 14, 2011Date of Patent: December 2, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-hwa Park, Jang-woo You, Yong-chul Cho