Patents by Inventor Sang-uk Jeon
Sang-uk Jeon 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: 11961822Abstract: A display device includes a substrate including a plurality of emission areas respectively corresponding to a plurality of subpixels for displaying an image, a plurality of light emitting elements respectively located in the plurality of emission areas of a first surface of the substrate and respectively corresponding to the plurality of subpixels, a first planarization layer on the first surface of the substrate and covering the plurality of light emitting elements, and an array layer on the first planarization layer.Type: GrantFiled: December 7, 2022Date of Patent: April 16, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hyun Joon Kim, Jung Hwan Hwang, Kye Uk Lee, Sang Jin Jeon
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Publication number: 20240112626Abstract: A display device includes a scan write line, a PWM emission line, a PAM emission line, a sweep signal line, a first data line, a second data line, and a subpixel connected thereto, and including a light emitting element, a first pixel driver to supply a control current to a node according to the first data voltage in response to the PWM emission signal, a second pixel driver to generate a driving current according to the second data voltage in response to the PWM emission signal, and a third pixel driver to supply the driving current to the light emitting element according to the PAM emission signal and a voltage of the node, wherein the PWM emission signal includes a plurality of PWM pulses, the PAM emission signal includes a plurality of PAM pulses, and a number of the PWM pulses is greater than a number of the PAM pulses.Type: ApplicationFiled: December 4, 2023Publication date: April 4, 2024Inventors: Jung Hwan HWANG, Hyun Joon KIM, Kye Uk LEE, Sang Jin JEON, Jun Ki JEONG
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Publication number: 20240071299Abstract: A display device includes connection lines, pulse amplitude modulation (PAM) data lines configured to receive pulse width modulation (PWM) data voltages, PWM data lines configured to receive the PWM data voltages, a first connection control line configured to receive a first connection control signal, a second connection control line configured to receive a second connection control signal, subpixels connected to the PWM data lines and the PAM data lines, and a first demultiplexer (demux) unit configured to connect the connection lines to the PAM data lines or to the PWM data lines according to the first connection control signal and the second connection control signal.Type: ApplicationFiled: October 30, 2023Publication date: February 29, 2024Inventors: Jung Hwan HWANG, Hyun Joon KIM, Kye Uk LEE, Jun Ki JEONG, Sang Jin JEON
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Publication number: 20230044443Abstract: An image forming apparatus includes a body a printing engine to perform an image forming operation, a waste toner withdrawal device to obtain waste toners generated during the image forming operation, and a waste toner treatment device to treat the waste toners obtained by the waste toner withdrawal device and introduced to the waste toner treatment device from the waste toner withdrawal device. The waste toner treatment device includes a waste toner discharging member, a heating portion to heat the waste toners within the heating portion, and a driving portion to move the heating portion along a longitudinal direction of the waste toner discharging member so as to form a waste toner solidified within the heating portion from the waste toners heated by the heating portion. The waste toner discharging member discharges the waste toner solidified within the heating portion outside of the heating portion.Type: ApplicationFiled: December 11, 2020Publication date: February 9, 2023Inventors: Jeong Chul SONG, Sang Uk JEON, Myung Hee JANG
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Patent number: 10705681Abstract: An electronic device is provided. The electronic device includes a display, a memory that stores icon image associated with an application, and a processor. The processor selects a partial area of the icon image, determines whether a type of an image included in the selected area is a first image type or a second image type, displays, if the type of the image included in the selected area is the first image type, the image included in the selected area in the display at a first magnification, and displays, if the type of the image included in the selected area is the second image type, the image included in the selected area in the display at a second magnification.Type: GrantFiled: April 12, 2017Date of Patent: July 7, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Hyeok Min Kwon, Dae Won Kim, Young Ha Park, Kyu Ho Lee, Young Sik Park, Sang Uk Jeon
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Patent number: 10437357Abstract: A method for controlling a screen in an electronic device is provided. The method includes receiving, from a first external device, rotation input information entered by rotation of a rotation input device included in the first external device, and controlling an object displayed on a display based on the received rotation input information.Type: GrantFiled: December 16, 2016Date of Patent: October 8, 2019Assignee: Samsung Electronics Co., LtdInventors: YoungHa Park, Mohamed Akram Ulla Shariff, Sang-Uk Jeon, Kusumakar Dwivedi
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Patent number: 10108118Abstract: A fusing device and an image forming apparatus are described in which a pressing member and a heating member of the fusing device are disposed adjacent to one another in a first direction. The heating member includes a fusing belt having a first side in contact with the pressing member, a heat source, disposed at a second side of the fusing belt, to heat the fusing belt, and a heat source seat having a concave structure in which the heat source is mountable.Type: GrantFiled: March 14, 2018Date of Patent: October 23, 2018Assignee: S-PRINTING SOLUTION CO., LTD.Inventors: Sun Hyung Lee, Sang Uk Jeon, Dong Woo Lee
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Patent number: 10095164Abstract: A fixing device is provided which includes a fixing belt rotatably arranged, a fixing roller disposed to face the fixing belt and forming a fixing nip together with an outer surface of the fixing belt a guide unit configured to guide rotation of the fixing belt in the fixing belt; and a pair of support units configured to limit movement of the fixing belt in a width direction at both ends of the guide unit. The fixing device may have a structure of guiding rotation of the fixing belt and a structure of limiting movement thereof in width direction, which are separated from each other.Type: GrantFiled: June 9, 2016Date of Patent: October 9, 2018Assignee: S-PRINTING SOLUTION CO., LTD.Inventors: Sun Hyung Lee, Sang Uk Jeon, Hyun Keun Park, Ju Hyeong Lee
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Publication number: 20180203388Abstract: A fusing device and an image forming apparatus are described in which a pressing member and a heating member of the fusing device are disposed adjacent to one another in a first direction. The heating member includes a fusing belt having a first side in contact with the pressing member, a heat source, disposed at a second side of the fusing belt, to heat the fusing belt, and a heat source seat having a concave structure in which the heat source is mountable.Type: ApplicationFiled: March 14, 2018Publication date: July 19, 2018Applicant: S-PRINTING SOLUTION CO., LTD.Inventors: Sun Hyung LEE, Sang Uk JEON, Dong Woo LEE
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Patent number: 9952541Abstract: A fusing device and an image forming apparatus are provided. The fusing device includes a fusing belt provided to be rotatable, a pressing member disposed to face the fusing belt, wherein the pressing member and the fusing belt form a fusing nip, a heat source disposed inside the fusing belt, wherein the heat source is disposed at a side of the fusing nip, a guide member including a heat source seat, on which the heat source is mounted, and configured to guide rotation of the fusing belt, and a pressing support member provided at one side of the heat source seat and configured to press the heat source toward the other side opposite the one side of the heat source seat.Type: GrantFiled: October 26, 2016Date of Patent: April 24, 2018Assignee: S-PRINTING SOLUTION CO., LTD.Inventors: Sun Hyung Lee, Sang Uk Jeon, Dong Woo Lee
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Publication number: 20180011555Abstract: A method for controlling a screen in an electronic device is provided. The method includes receiving, from a first external device, rotation input information entered by rotation of a rotation input device included in the first external device, and controlling an object displayed on a display based on the received rotation input information.Type: ApplicationFiled: December 16, 2016Publication date: January 11, 2018Inventors: YoungHa PARK, Mohamed Akram Ulla SHARIFF, Sang-Uk JEON, Kusumakar DWIVEDI
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Publication number: 20170308269Abstract: An electronic device is provided. The electronic device includes a display, a memory that stores icon image associated with an application, and a processor. The processor selects a partial area of the icon image, determines whether a type of an image included in the selected area is a first image type or a second image type, displays, if the type of the image included in the selected area is the first image type, the image included in the selected area in the display at a first magnification, and displays, if the type of the image included in the selected area is the second image type, the image included in the selected area in the display at a second magnification.Type: ApplicationFiled: April 12, 2017Publication date: October 26, 2017Inventors: Hyeok Min KWON, Dae Won KIM, Young Ha PARK, Kyu Ho LEE, Young Sik PARK, Sang Uk JEON
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Publication number: 20170123356Abstract: A fusing device and an image forming apparatus are provided. The fusing device includes a fusing belt provided to be rotatable, a pressing member disposed to face the fusing belt, wherein the pressing member and the fusing belt form a fusing nip, a heat source disposed inside the fusing belt, wherein the heat source is disposed at a side of the fusing nip, a guide member including a heat source seat, on which the heat source is mounted, and configured to guide rotation of the fusing belt, and a pressing support member provided at one side of the heat source seat and configured to press the heat source toward the other side opposite the one side of the heat source seat.Type: ApplicationFiled: October 26, 2016Publication date: May 4, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sun Hyung LEE, Sang Uk Jeon, Dong Woo Lee
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Publication number: 20160363891Abstract: A fixing device is provided which includes a fixing belt rotatably arranged, a fixing roller disposed to face the fixing belt and forming a fixing nip together with an outer surface of the fixing belt a guide unit configured to guide rotation of the fixing belt in the fixing belt; and a pair of support units configured to limit movement of the fixing belt in a width direction at both ends of the guide unit. The fixing device may have a structure of guiding rotation of the fixing belt and a structure of limiting movement thereof in width direction, which are separated from each other.Type: ApplicationFiled: June 9, 2016Publication date: December 15, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sun Hyung LEE, Sang Uk Jeon, Hyun Keun Park, Ju Hyeong Lee
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Patent number: 9235175Abstract: An image fixing apparatus is provided including a pressing roller, a fixing belt rotatably disposed such that an outer circumferential surface of the fixing belt contacts the pressing roller, and a rotating bush to support rotation of the fixing belt. The fixing belt includes a load support member arranged in an axial direction, a heating layer formed on an outer circumferential surface of the load support member to generate heat, and an electrode layer provided with an first portion axially contacting the heating layer at an axial end of the load support member, the electrode layer transferring electric energy to the heating layer. An inner end of the rotating bush axially extends to an inner side of the electrode layer such that the electrode layer is supported by the rotating bush. The image fixing apparatus may uniformly form a fixing nip and improve durability of the fixing belt.Type: GrantFiled: June 12, 2014Date of Patent: January 12, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang Uk Jeon, Sun Hyung Lee, Ju Hyeong Lee
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Patent number: 9052651Abstract: A fusing device according to an embodiment of the present general inventive concept includes a pressing unit, a heating fusing belt contacts an outer surface of the pressing unit and rotates, a nib forming unit contacts an inner surface of the heating fusing belt and forms a nib at a contact portion between the pressing unit and the heating fusing belt, a first guide unit disposed at both end portions of the heating fusing belt so as to guide the movement of the heating fusing belt, and a second guide unit disposed between the first guide units and having a plurality of ribs which are arranged spaced apart from each other along a rotational direction of the heating fusing belt, so as to guide the movement of a central portion of the heating fusing belt.Type: GrantFiled: October 23, 2013Date of Patent: June 9, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventor: Sang-uk Jeon
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Patent number: 8958736Abstract: A fixing apparatus includes a heating roller and a nip forming unit facing the heating roller to form a fixing nip. The heating roller includes a resistive heating layer receiving an electric current to generate heat, and a base material supporting the resistive heating layer, wherein a resistance per unit length of the resistive heating layer at opposite sides in a length direction is less than a resistance per unit length of the resistive heating layer at a center portion.Type: GrantFiled: August 30, 2013Date of Patent: February 17, 2015Assignee: SAMSUNG Electronics Co., Ltd.Inventors: Sun-hyung Lee, Ju-hyeong Lee, Sang-uk Jeon
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Publication number: 20140376978Abstract: An image fixing apparatus is provided including a pressing roller, a fixing belt rotatably disposed such that an outer circumferential surface of the fixing belt contacts the pressing roller, and a rotating bush to support rotation of the fixing belt. The fixing belt includes a load support member arranged in an axial direction, a heating layer formed on an outer circumferential surface of the load support member to generate heat, and an electrode layer provided with an first portion axially contacting the heating layer at an axial end of the load support member, the electrode layer transferring electric energy to the heating layer. An inner end of the rotating bush axially extends to an inner side of the electrode layer such that the electrode layer is supported by the rotating bush. The image fixing apparatus may uniformly form a fixing nip and improve durability of the fixing belt.Type: ApplicationFiled: June 12, 2014Publication date: December 25, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang Uk JEON, Sun Hyung Lee, Ju Hyeong Lee
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Publication number: 20140294458Abstract: A fusing device according to an embodiment of the present general inventive concept includes a pressing unit, a heating fusing belt contacts an outer surface of the pressing unit and rotates, a nib forming unit contacts an inner surface of the heating fusing belt and forms a nib at a contact portion between the pressing unit and the heating fusing belt, a first guide unit disposed at both end portions of the heating fusing belt so as to guide the movement of the heating fusing belt, and a second guide unit disposed between the first guide units and having a plurality of ribs which are arranged spaced apart from each other along a rotational direction of the heating fusing belt, so as to guide the movement of a central portion of the heating fusing belt.Type: ApplicationFiled: October 23, 2013Publication date: October 2, 2014Applicant: Samsung Electronics Co., Ltd.Inventor: Sang-uk JEON
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Publication number: 20140294471Abstract: A fixing apparatus includes a heating roller and a nip forming unit facing the heating roller to form a fixing nip. The heating roller includes a resistive heating layer receiving an electric current to generate heat, and a base material supporting the resistive heating layer, wherein a resistance per unit length of the resistive heating layer at opposite sides in a length direction is less than a resistance per unit length of the resistive heating layer at a center portion.Type: ApplicationFiled: August 30, 2013Publication date: October 2, 2014Applicant: SAMSUNG Electronics Co., Ltd.Inventors: Sun-hyung LEE, Ju-hyeong LEE, Sang-uk JEON