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公开(公告)号：US09952460B2
公开(公告)日：2018-04-24
申请号：US15010968
申请日：2016-01-29
Inventor： Jong-Heon Yang , Jae Bon Koo , Byoung-Hwa Kwon , Gi Heon Kim , Yong Hae Kim , Hojun Ryu , Chan Woo Park , Chunwon Byun , Hyunkoo Lee , Jong Tae Lim , Kyoung Ik Cho , Seong-Mok Cho , Hye Yong Chu , Chi-Sun Hwang
IPC: G02F1/1333 , G02F1/1335
CPC classification number: G02F1/133308 , G02F2001/133317 , G02F2001/133616 , G02F2201/44
Abstract: Provided is a display device. The display device includes a lower display element where a substrate, a first lower electrode, a liquid crystal part, and a second lower electrode are sequentially stacked, an upper display element stacked vertical to the lower display element, where a first upper electrode, a light emitting part, a second upper electrode, and a protective part are sequentially stacked, and a middle part configured to deliver a driving signal to the lower and upper display elements, between the lower and upper display elements.
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公开(公告)号：US11487348B2
公开(公告)日：2022-11-01
申请号：US16552550
申请日：2019-08-27
Inventor： Chunwon Byun , Young-deuk Jeon , Chi-Sun Hwang , Chan-mo Kang , Yun-Jeong Kim , Hye Jin Kim , Seongdeok Ahn , Jeong Ik Lee , Seong Hyun Kim , Bock Soon Na
Abstract: Provided is a pixel circuit. The pixel circuit includes a conversion element forming a voltage of an input level at a first node, a first transistor adjusting the voltage of the first node to a first level in response to a first signal received at a first time interval, a first capacitive element forming a voltage at a second node based on the voltage of the first node, a second transistor adjusting a level of the voltage of the second node to a second level in response to the first signal, a third transistor forming a voltage at a third node, a fourth transistor outputting a current in response to a second signal received in a second time interval, and a. fifth transistor adjusting the voltage of the third node to a third level in response to a third signal received in a third time interval.
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公开(公告)号：US09904251B2
公开(公告)日：2018-02-27
申请号：US14996527
申请日：2016-01-15
Inventor： Chunwon Byun , Jae-Eun Pi , Yong Hae Kim , Hakyun Lee , Chi-Sun Hwang
CPC classification number: G03H1/2294 , G02F1/13 , G03H2001/0224 , G09G3/003 , G09G3/3648 , G09G3/3688 , G09G2310/0297 , G09G2320/0223
Abstract: A holographic display apparatus includes a light source unit, a spatial light modulator, and a spatial light modulator control circuit for controlling the spatial light modulator, the spatial light modulator control circuit including a data driving circuit for providing a data voltage to a signal line, a demultiplexer circuit which includes a plurality of switching elements connected to the signal line and sequentially turned on, and transfers the data voltage to a transfer line through a turned-on switching element among the switching elements, and a first element connected between the transfer line and a data line, passing a current flowing from the transfer line to the data line, and blocking a current flowing from the data line to the transfer line.
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公开(公告)号：US12171560B2
公开(公告)日：2024-12-24
申请号：US16852648
申请日：2020-04-20
Inventor： Chunwon Byun , O Eun Kwon , Chan Woo Park , Hyunkoo Lee , Sukyung Choi , Chan-Mo Kang , Byoung-Hwa Kwon , Chil Seong Ah , Hyunsu Cho , Jeong Ik Lee , Nam Sung Cho
Abstract: A pixel circuit includes a sensing block, a stimulation block, a first line control circuit, and a second line control circuit. The sensing block outputs biometric data of a biosignal in response to a first selection signal. The stimulation block radiates a stimulation signal in response to a second selection signal. The first line control circuit outputs the first selection signal for selecting the sensing block as a target sensing block, and outputs the second selection signal for selecting the stimulation block as a target stimulation block. The second line control circuit processes characteristic data associated with the biometric data and the stimulation signal.
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公开(公告)号：US11476433B2
公开(公告)日：2022-10-18
申请号：US16839857
申请日：2020-04-03
Inventor： Sukyung Choi , Hyunkoo Lee , Byoung-Hwa Kwon , Jaehyun Moon , Hyunsu Cho , Chan-mo Kang , Chunwon Byun , Jin Wook Shin , Nam Sung Cho
Abstract: Provided is a light emitting device including a lower electrode, an upper electrode disposed to face the lower electrode, a quantum dot light emitting layer between the lower electrode and the upper electrode, an electron transport layer between the lower electrode and the quantum dot light emitting layer, and a hole transport layer between the upper electrode and the quantum dot light emitting layer, wherein the quantum dot light emitting layer includes a quantum dot, and a first ligand on a surface of the quantum dot, and a second ligand on the surface of the quantum dot.
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Patent Agency Ranking
公开(公告)号：US10460695B2
公开(公告)日：2019-10-29
申请号：US15818838
申请日：2017-11-21
Inventor： Chunwon Byun , Sang Hoon Cheon , Hyunkoo Lee
Abstract: Provided is an electrochromic display device including a display panel including a plurality of pixels configured to display an image on a basis of a unit frame defined as first to third sub-frames, a timing controller configured to output a data signal and an off signal, and a data driving circuit configured to provide, to the pixels, a data voltage generated based on the data signal during the second sub-frame and provide, to the pixels, an off voltage generated based on the off signal during the third sub-frame, wherein each of the pixels includes an electrochromic element, and a power supply voltage is delivered to the electrochromic element in response to the data voltage during the second sub-frame and the power supply voltage provided to the electrochromic element is blocked in response to the off voltage during the third sub-frame.
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公开(公告)号：US12036028B2
公开(公告)日：2024-07-16
申请号：US17353495
申请日：2021-06-21
Inventor： O Eun Kwon , Chan-mo Kang , Kukjoo Kim , Jin-Wook Shin , Chunwon Byun , Sukyung Choi , Byoung-Hwa Kwon , Sujung Kim , Sooji Nam , Chan Woo Park , Jong-Heon Yang
CPC classification number: A61B5/291 , A61B5/4836 , A61B5/1455 , A61B5/25 , A61B5/293 , A61B5/6801 , A61B5/6867 , A61B5/6868 , A61B2562/06 , A61N5/0622 , A61N2005/0653
Abstract: Provided is a bio-signal detection and stimulation device. The bio-signal detection and stimulation device includes a flexible substrate, a stimulation part on the flexible substrate, and a detection electrode part on the flexible substrate. The stimulation part and the detection electrode part vertically overlap each other, the stimulation part includes an organic light emitting diode (OLED), the stimulation part emits an optical signal, and the detection electrode part detects a bio-signal.
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公开(公告)号：US10374093B2
公开(公告)日：2019-08-06
申请号：US15812231
申请日：2017-11-14
Inventor： Doo-Hee Cho , Young Sam Park , Chunwon Byun , Byoung Gon Yu , Jonghee Lee , Hyunkoo Lee , Nam Sung Cho
IPC: H01L29/76 , H01L29/786 , H01L51/00 , H01L21/288 , H01L21/02 , H01L51/10 , H01L29/423 , H01L21/683 , H01L51/05 , H01L29/66
Abstract: Embodiments of the inventive concepts provide a method of fabricating a flexible substrate and the flexible substrate fabricated thereby. The method includes printing a gate catalyst pattern on a separation layer, forming a gate plating pattern on the gate catalyst pattern, forming a gate insulating layer on the gate plating pattern, printing a source catalyst pattern and a drain catalyst pattern spaced apart from each other on the gate insulating layer, and forming a source plating pattern and a drain plating pattern on the source catalyst pattern and the drain catalyst pattern, respectively.
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公开(公告)号：US09665066B2
公开(公告)日：2017-05-30
申请号：US14503234
申请日：2014-09-30
Inventor： Yong Hae Kim , Chi-Sun Hwang , Gi Heon Kim , Hojun Ryu , Chunwon Byun , Himchan Oh , Myung Lae Lee , Hye Yong Chu
CPC classification number: G03H1/02 , G02F1/0121 , G02F1/133528 , G02F1/157 , G02F2001/1635 , G02F2201/44 , G03H1/2294 , G03H2001/0224 , G03H2225/22 , G03H2225/33
Abstract: Provided are a spatial light modulator (SLM) and a method of fabricating the same. The complex spatial light modulator includes a thin film transistor (TFT) layer provided on a substrate, an amplitude type SLM and a phase type SLM electrically connected to the TFT layer, and a first polarizer provided on the phase type SLM, wherein the TFT layer includes transistors electrically connected to the amplitude type SLM and the phase type SLM, respectively, and the amplitude type SLM and the phase type SLM are commonly and electrically connected to the TFT layer and driven.
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公开(公告)号：US09628079B2
公开(公告)日：2017-04-18
申请号：US15050187
申请日：2016-02-22
Inventor： Jae-Eun Pi , Chunwon Byun , OhSang Kwon , Eunsuk Park , Min Ki Ryu , Chi-Sun Hwang
IPC: H03K3/01 , H03K19/0185
CPC classification number: H03K19/018507
Abstract: A level shifter circuit a first transistor connected between a power source terminal of the level shifter circuit and an output terminal of the level shifter circuit, the first transistor being configured to transmit, in response to a first signal and a second signal, a power source voltage applied from the power source terminal to the output terminal, the first signal being received from an input terminal of the level shifter circuit through a first gate of the first transistor, the second signal being received through a second gate of the first transistor, and a second transistor connected between a ground terminal of the level shifter circuit and the output terminal, the second transistor being configured to transmit a ground voltage from the ground terminal to the output terminal in response to a gate signal received through a gate of the second transistor.
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