Patents by Inventor Jung Chai
Jung Chai 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: 11967595Abstract: A semiconductor device may include a substrate, a first nanowire, a second nanowire, a first gate insulating layer, a second gate insulating layer, a first metal layer and a second metal layer. The first gate insulating layer may be along a periphery of the first nanowire. The second gate insulating layer may be along a periphery of the second nanowire. The first metal layer may be on a top surface of the first gate insulating layer along the periphery of the first nanowire. The first metal layer may have a first crystal grain size. The second metal layer may be on a top surface of the second gate insulating layer along the periphery of the second nanowire. The second metal layer may have a second crystal grain size different from the first crystal grain size.Type: GrantFiled: September 30, 2020Date of Patent: April 23, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Jae Jung Kim, Young Suk Chai, Sang Yong Kim, Hoon Joo Na, Sang Jin Hyun
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Publication number: 20230368733Abstract: A display device includes: active stages each include a scan output circuit outputting a scan clock signal to a first output terminal and a carry output circuit outputting a carry clock signal to a second output terminal, when a voltage of a first node is at a logic high level. The scan output circuit and carry output circuit output a scan signal of a turn-off level to the first output terminal when a voltage of a second node or a carry signal is at a logic high level. An interval between pulses of the carry clock signal generated during one frame period is the same, and at least two of intervals between pulses of the scan clock signal generated during the one frame period are different from each other.Type: ApplicationFiled: July 18, 2023Publication date: November 16, 2023Inventors: Yoon Jung CHAI, Won Jun LEE, Chol Ho KIM, Sung Hoon LIM, Yoo Seok JANG
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Patent number: 11749195Abstract: A display device includes: active stages each include a scan output circuit outputting a scan clock signal to a first output terminal and a carry output circuit outputting a carry clock signal to a second output terminal, when a voltage of a first node is at a logic high level. The scan output circuit and carry output circuit output a scan signal of a turn-off level to the first output terminal when a voltage of a second node or a carry signal is at a logic high level. An interval between pulses of the carry clock signal generated during one frame period is the same, and at least two of intervals between pulses of the scan clock signal generated during the one frame period are different from each other.Type: GrantFiled: June 29, 2022Date of Patent: September 5, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yoon Jung Chai, Won Jun Lee, Chol Ho Kim, Sung Hoon Lim, Yoo Seok Jang
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Publication number: 20230186849Abstract: A display device includes: active stages each include a scan output circuit outputting a scan clock signal to a first output terminal and a carry output circuit outputting a carry clock signal to a second output terminal, when a voltage of a first node is at a logic high level. The scan output circuit and carry output circuit output a scan signal of a turn-off level to the first output terminal when a voltage of a second node or a carry signal is at a logic high level. An interval between pulses of the carry clock signal generated during one frame period is the same, and at least two of intervals between pulses of the scan clock signal generated during the one frame period are different from each other.Type: ApplicationFiled: June 29, 2022Publication date: June 15, 2023Inventors: Yoon Jung CHAI, Won Jun LEE, Chol Ho KIM, Sung Hoon LIM, Yoo Seok JANG
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Patent number: 11423827Abstract: A display device includes: a substrate including a display region including a plurality of pixel regions, and a non-display region at a periphery of the display region; a pixel circuit layer including a plurality of circuit elements in the display region; a display element layer including a plurality of light emitting devices in the display region on the pixel circuit layer; and first and second alignment lines in the non-display region, the first and second alignment lines each having a multi-layered structure. Each of the first and second alignment lines includes: a main line in a same layer as at least one electrode in the display element layer; and at least one sub-line electrically connected to the main line, the at least one sub-line in a same layer as at least one electrode in the pixel circuit layer.Type: GrantFiled: June 12, 2019Date of Patent: August 23, 2022Assignee: Samsung Display Co., Ltd.Inventors: Hong Bo Kim, Won Jun Lee, Yoon Jung Chai, Chol Ho Kim, Hyo Chul Lee
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Patent number: 10665162Abstract: A pixel of an organic light emitting diode (OLED) display device may include an organic light-emitting diode; a first transistor configured to control, in response to a voltage of a first node, current flowing from a first driving power source to a second driving power source that is coupled to a second node via the organic light-emitting diode; a second transistor coupled between a data line and the first node, and configured to be turned on when a first scan signal is supplied to a first scan line; a storage capacitor coupled between the first node and the first driving power source; and an auxiliary capacitor coupled between the first driving power source and the second node.Type: GrantFiled: May 18, 2018Date of Patent: May 26, 2020Assignee: Samsung Display Co., Ltd.Inventors: Hyo Chul Lee, Yoon Jung Chai
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Publication number: 20200005703Abstract: A display device includes: a substrate including a display region including a plurality of pixel regions, and a non-display region at a periphery of the display region; a pixel circuit layer including a plurality of circuit elements in the display region; a display element layer including a plurality of light emitting devices in the display region on the pixel circuit layer; and first and second alignment lines in the non-display region, the first and second alignment lines each having a multi-layered structure. Each of the first and second alignment lines includes: a main line in a same layer as at least one electrode in the display element layer; and at least one sub-line electrically connected to the main line, the at least one sub-line in a same layer as at least one electrode in the pixel circuit layer.Type: ApplicationFiled: June 12, 2019Publication date: January 2, 2020Inventors: Hong Bo KIM, Won Jun LEE, Yoon Jung CHAI, Chol Ho KIM, Hyo Chul LEE
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Publication number: 20190096323Abstract: A pixel of an organic light emitting diode (OLED) display device may include an organic light-emitting diode; a first transistor configured to control, in response to a voltage of a first node, current flowing from a first driving power source to a second driving power source that is coupled to a second node via the organic light-emitting diode; a second transistor coupled between a data line and the first node, and configured to be turned on when a first scan signal is supplied to a first scan line; a storage capacitor coupled between the first node and the first driving power source; and an auxiliary capacitor coupled between the first driving power source and the second node.Type: ApplicationFiled: May 18, 2018Publication date: March 28, 2019Inventors: Hyo Chul LEE, Yoon Jung CHAI
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Publication number: 20170040871Abstract: The present invention teaches an environmentally friendly and convenient way of electricity generation. The electricity generation device contains a rotational arm, a weight, and a moving mechanism. The rotational arm is rotatably joined to an electricity generation mechanism and configured with a track element along its length. The weight is movably configured in the track element. The moving mechanism applies a first moving force to move the weight from a first end side of the rotational arm along the track element's length to a second end side opposite to the first end side. A torque is thereby produced to turn the rotational arm and electricity is generated from the electricity generation mechanism.Type: ApplicationFiled: August 4, 2015Publication date: February 9, 2017Inventors: JUNG-CHAI HSIEH, MIN-CHING HSIEH
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Publication number: 20110133428Abstract: A steering safety mechanism is provided for a bicycle and includes a frame, a steering stem, at least one first fastener, at least one second fastener, and a damping element. The frame includes a head tube portion. An end of the steering stem is received through the head tube portion. The first fastener is attached to the frame, and the second fastener is attached to the steering stem. The damping element has a first end attached to the first fastener and a second end attached to the second fastener.Type: ApplicationFiled: December 8, 2009Publication date: June 9, 2011Inventor: JUNG-CHAI HSIEH
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Publication number: 20060101640Abstract: The present invention is related to a method of fabricating a rigid-flexible printed circuit board. Specifically, this invention relates to a method of fabricating a rigid-flexible printed circuit board, in which an internal circuit pattern exposed for use in an external pad and a mounting pad is protected from external environments using a resist cover by window etching the base copper foil of a flexible region upon formation of an external circuit pattern as opposed to using a resist cover. Thus the number of fabrication processes and the fabrication costs are decreased and the increase in defect rates due to contamination is prevented, resulting in maximized reliability.Type: ApplicationFiled: October 18, 2005Publication date: May 18, 2006Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Yang Lee, Dek Yang, Jung Hwang, Kyu Yim, Jung Chai, Young Lee, Kwang Kim, Dong An
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Patent number: 7036836Abstract: A structure of an automatic speed change device for bicycle gearbox is disclosed in this present invention. The above-mentioned design can be applied to a bicycle with a rear wheel speed change device. According to this invention, the automatic speed change device is able to control the allotting device of the rear wheel speed change device to transfer the chain into suitable gear by the treading rat of the user. This design can simplify the manual gear shifting process in the prior art for controlling the rear wheel speed change device. Therefore, this invention can make riding bicycle more easily and widely for all age.Type: GrantFiled: September 22, 2003Date of Patent: May 2, 2006Assignee: Alfa Power Co., Ltd.Inventor: Jung-Chai Hsieh
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Publication number: 20040097308Abstract: A structure of an automatic speed change device for bicycle gearbox is disclosed in this present invention. The above-mentioned design can be applied to a bicycle with a rear wheel speed change device. According to this invention, the automatic speed change device is able to control the allotting device of the rear wheel speed change device to transfer the chain into suitable gear by the treading rat of the user. This design can simplify the manual gear shifting process in the prior art for controlling the rear wheel speed change device. Therefore, this invention can make riding bicycle more easily and widely for all age.Type: ApplicationFiled: September 22, 2003Publication date: May 20, 2004Inventor: Jung-Chai Hsieh