Selected Papers

[ Biomedical circuit ]

An Artificial Neural Tactile Sensing System

Sungwoo Chun*, Jong-Seok Kim*, Yongsang Yoo, Youngin Choi, Sung Jun Jung, Dongpyo Jang, Gwangyeob Lee, Kang-Il Song, Kum Seok Nam, Inchan Youn, Donghee Son, Changhyun Pang, Yong Jeong, Hachul Jung, Young-Jin Kim, Byong-Deok Choi, Jaehun Kim, Sung-Phil Kim, Wanjun Park, Seongjun Park   (*equally contributed)

Nature Electronics, 4, 429-438, Jun. 2021  [Q1 / IF: 33.255]    [Top journal in Electronic Engineering]

[ Display circuit ]

A 10b Source-Driver IC with All-Channel Automatic Offset Calibration and Slew-Rate-Enhanced Amplifier Achieving 2273μm2/Channel and 1.9mV DVO for 6285-PPI OLED-on-Silicon Displays

Junghwan Oh, Wiman Yoo, Dong-Kun Lee, and Jong-Seok Kim*     (*corresponding author)

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2025   [Top circuit conference, 반도체 올림픽]

A Low-Area and Fully-Nonlinear 10-Bit Column Driver with Low-Voltage DAC and Switched-Capacitor Amplifier for Active-Matrix Displays

Jong-Seok Kim, Jin-O Yoon, Byong-Deok Choi

IEEE Journal of Solid-State Circuits (JSSC), 56, 488-500, Feb. 2021 [Q1, IF: 6.126]   [Top circuit journal] 

[ Power management circuit ]

A High-Light-Load-Efficiency, Low-Ripple-Voltage PFM Buck Converter for IoT Applications

Jong-Seok Kim, Jin-O Yoon, Byong-Deok Choi

IEEE Transactions on Power Electronics (TPEL), 37, 5763-5772, May 2022  [Q1 / IF: 5.967]

[ Sensor circuit ]

Uniform Pressure Responses for Nanomaterials-Based Biological On-Skin Flexible Pressure Sensor Array

Jong-Seok Kim, Yechan So, Sangmin Lee, Changhyun Pang, Wanjun Park, Sungwoo Chun

Carbon, 181, 169-176, Aug. 2021 [Q1 / IF: 11.307]

[ TFT circuit ]

A High-Reliability Carry-Free Gate Driver for Flexible Displays Using a-IGZO TFTs

Jong-Seok Kim, Jung-Woo Byun, Jun-Hwan Jang, Yong-Duck Kim, Kilim Han, Jin-Seong Park, Byong-Deok Choi

IEEE Transactions on Electron Devices (TED), 65, 3269-3276, 2018  [Q2 / IF: 3.221]

Preparation

• Under preparation

[ IEEE JSSC ] Hyeseon Choi, Multi-TIS chip

[ IEEE JSSC ] Jungwhan Oh, A 10b source-driver IC for OLEDoS displays

[ IEEE TCSVT ] Dong-Hyun Kim, Slew-rate enhanced amplifier

[ IEEE JSSC ] Jong-Hwa Bae, A 11b source-driver IC for OLEDoS displays

[ IEEE JSSC ] Dong-Kun Lee, A small-area 10b source-driver IC for OLED display

[ IEEE JSSC ] Dong-Kun Lee, TFT amplifier

[ IEEE TCAS-II ] Jae-Yoon Kim, Slew-rate enhanced amplifier

[ IEEE TCAS-II ] Suho Lee, Slew-rate enhanced amplifier

[ IEEE TCAS-II ] Sewon Park, Slew-rate enhanced amplifier

[ IEEE TCAS-II ] Chaewon Park, Slew-rate enhanced amplifier

[ IEEE EDL ] Dong-Kun Lee, TFT comparator

[ IEEE EDL ] Dong-Kun Lee, TFT logic gate

• Under review

[ IEEE TCSVT ] Seong-Ro Lee, in-cell touch sensor for bottom-emission OLED

[ IEEE Sensors ] Seong-Ro Lee, Active-matrix resistive sensor ROIC

2025

(Invited) A 10b Source-Driver IC with All-Channel Automatic Offset Calibration and Slew-Rate-Enhanced Amplifier for 6285-PPI OLED-on-Silicon Displays

Junghwan Oh, Dong-Kun Lee, and Jong-Seok Kim     

IEEE Asian Pacific Conference on Circuits and Systems (APCCAS), Oct. 2025 

A 12-Channel Multi-Electrode Temporal Interference Stimulation (Multi-TIS) Driver IC with High-Voltage Amplifier and Mismatch Calibration Technique

Hye-Seon Choi, So-Hyun Lee, Myeong-Cheol Hyun, Jae-Ha Lee, Ji-Sun Lee, Myeong-Jun Kim, Kyunghyun Jo, Seongjun Park, and Jong-Seok Kim*    (*corresponding author) 

IEEE Asian Solid-state Circuits Conference (A-SSCC), Nov. 2025  [Major circuit conference]

(Invited) Design Challenges and Solutions for Source Driver ICs in OLED-on-Silicon (OLEDoS) Microdisplays 

Junghwan Oh, Dong-Kun Lee, and Jong-Seok Kim*     

International Meetings on Information Display (IMID) 2025, Aug. 2025   

Compact Slew-Rate Enhanced Class-AB Buffer Amplifier for OLED Displays 

Dong-Hyun Kim, Chan-Keun Kwon, and Jong-Seok Kim*     

International Meetings on Information Display (IMID) 2025, Aug. 2025   

Design of Inductive-Inductive-Capacitive (LLC) Hybrid Touch Sensor for Large-Area Bottom-Emission OLED Displays 

Myungcheol Hyun, Seong-Ro Lee, Jae-Ha Lee, Jae-Sung Ahn, Jae-Hun Ye, Duhyun Jeon, and Jong-Seok Kim*     

International Meetings on Information Display (IMID) 2025, Aug. 2025  

Slew-Rate Enhanced Buffer Amplifier with Output-Current Boosting Technique for OLED Displays  

Chong-Hwa Bae and Jong-Seok Kim*     

International Meetings on Information Display (IMID) 2025, Aug. 2025   

Slew-Rate Enhanced Buffer Amplifier with Output-Current Boosting Technique for OLED Displays  

Chong-Hwa Bae and Jong-Seok Kim*     

International Meetings on Information Display (IMID) 2025, Aug. 2025   

High-Accuracy and Stability-Enhanced Readout Circuit for High-Resolution Active-Matrix Resistive Sensor Arrays with Small-Sized TFTs

Seong-Ro Lee, Myungcheol Hyun, and Jong-Seok Kim*     

International Meetings on Information Display (IMID) 2025, Aug. 2025   

A 10b Source-Driver IC with All-Channel Automatic Offset Calibration and Slew-Rate-Enhanced Amplifier Achieving 2273μm2/Channel and 1.9mV DVO for 6285-PPI OLED-on-Silicon Displays

Junghwan Oh, Wiman Yoo, Dong-Kun Lee, and Jong-Seok Kim*     (*corresponding author) 

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2025  [Top circuit conference, 반도체 올림픽]

슬루율이 향상된 디스플레이 소스 드라이버 IC용 Rail-to-Rail Class AB 버퍼 증폭기

Suho Lee and Jong-Seok Kim*

2025 대한전자공학회 SoC 학술대회, May 2025

2024

(Invited) Technological Challenges for OLED-on-Silicon (OLEDoS) Display Backplane Circuits in for AR & VR Devices

Jong-Seok Kim, Wiman Yoo, and Jung-Hwan Oh

Joint Symposium on Global Conference on Innovation Materials (GCIM), June 2024

High-Accuracy Sensing Circuit for High-Resolution TFT Based Active Matrix Resistive Sensor Arrays

Wiman Yoo, Seong-Ro Lee, and Jong-Seok Kim

International Thin-Film Transistor Conference (ITC), Mar. 2024

Compact slew-rate-enhanced class-AB buffer amplifier

Dong-Hyun Kim and Jong-Seok Kim

24th RF/Analog Circuit Workshop, Sep. 2024

Slew-rate-enhancement Amplifier with low-quiescent current dynamic current source

Chong-Hwa Bae and Jong-Seok Kim

24th RF/Analog Circuit Workshop, Sep. 2024

부정합 보상 방법 및 장치

Jong-Seok Kim, Hye-Seon Choi

출원: KR 10-2024-0146271, Oct. 24, 2024

버퍼 증폭기 슬루율 향상 장치 및 방법

Jong-Seok Kim, Chong-Hwa Bae

출원: KR 10-2024-0146405, Oct. 24, 2024

버퍼 증폭기 슬루율 향상 장치 및 방법

Jong-Seok Kim, Chong-Hwa Bae

출원: KR 10-2024-0146472, Oct. 24, 2024

버퍼 증폭기 슬루율 향상 장치 및 방법

Jong-Seok Kim, Dong-Hyun Kim

출원: KR 10-2024-0146472, Oct. 24, 2024

오프셋 보정 장치 및 방법    

Jong-Seok Kim, Wiman Yoo

출원: KR 10-2024-0040227, Mar. 25, 2024

버퍼 증폭기 슬루율 향상 장치 및 이를 이용한 슬루율 향상방법      

Jong-Seok Kim, Wiman Yoo

출원: KR 10-2024-0031769, Mar. 6, 2024

디스플레이 장치 (Display device)

Jong-Seok Kim, Byong-Deok Choi, Yong Duck Kim

등록: KR 10-2713288, Sep. 27, 2024

2023

High-Accuracy Readout Circuits for High-Resolution Active-Matrix Resistive Sensor Arrays

Seong-Ro Lee, Wiman Yoo, Jong-Seok Kim*

IEEE Sensors Journal, Dec. 2023  [Q1/ IF: 4.3]

(Invited) Why do the on-silicon displays require small-area driving circuits?

Jong-Seok Kim

International Meeting on Information Displays (IMID), Aug. 2023, Busan, Korea

디스플레이 구동 회로를 위한 고 균일 출력 버퍼

Jong-Seok Kim, Wiman Yoo

출원: KR 10-2023-0194961, Dec. 28, 2023

출력 버퍼의 슬루율 향상 기법을 적용한 디스플레이 구동회로

Jong-Seok Kim, Wiman Yoo

출원: KR 10-2023-0189145, Dec. 22, 2023

저항형 소자 구동 장치 (Device for driving resistive element)

Jong-Seok Kim, Jisun Lee

출원: KR 10-2023-0173326, Dec. 4, 2023

Test circuit of semiconductor apparatus and test system including the same

Jong Seok Jung, Chan Keun Kwon, Jong-Seok Kim, Young Kwan Lee

출원: US 18/174658, Feb. 27, 2023

2022

A High-Light-Load-Efficiency, Low-Ripple-Voltage PFM Buck Converter for IoT Applications

Jong-Seok Kim, Jin-O Yoon, Byong-Deok Choi

IEEE Transactions on Power Electronics (TPEL), 37, 5763-5772, May 2022  [Q1 / IF: 5.967]

(Invited) Bio-inspired artificial neural tactile sensing system

Jong-Seok Kim

Europe-Korea Conference on Science and Technology (EKC) 2022, Jul. 2022, Marseille, France

A 1-Tb, 4b/Cell, 176-Stacked-WL 3D-NAND Flash Memory with Improved Read Latency and a 14.8Gb/mm2 Density 

W. Cho, J. Jung, J. Kim, J. Ham, S. Lee, Y. Noh, D. Kim, W. Lee, K. Cho, K. Kim, H. Lee, S. Chai, E. Jo, H. Cho, J-S. Kim, C. Kwon, C. Park, H. Nam, H. Won, T. Kim, K. Park, S. Oh, J. Ban, J. Park, J. Shin, T. Shin, J. Jang, J. Mun, J. Choi, H. Choi, S-W. Choi, W. Park, D. Yoon, M. Kim, J. Lim, C. An, H. Shim, H. Oh, H. Park, S. Shim, H. Huh, H. Choi, S. Lee, J. Sim, K. Gwon, J. Kim, W. Jeong, J. Choi, K-W. Jin

IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2022    [Top circuit conference, 반도체 올림픽]

Offset-compensated CMOS amplifier

Wiman Yoo, Jisun Lee, Junghwan Oh, Hyeseon Choi, and Jong-Seok Kim*

2022 대한전자공학회 추계학술대회, Nov. 2022

디스플레이 장치 (Display device)

Jong-Seok Kim, Byong-Deok Choi, Yong Duck Kim

출원: KR 10-2022-0188555, Dec. 29, 2022

전류거울 (Current mirror)

Jong-Seok Kim, Byong-Deok Choi, Yong Duck Kim

출원: KR 10-2022-0166076, Dec. 01, 2022

반도체 장치의 테스트 회로 및 테스트 시스템

Jong-Seok Kim

출원: KR 10-2022-0162738, Nov. 29, 2022

Semiconductor Device for generating a reference current or voltage in various temperatures

Jong-Seok Kim

출원: US 17/830929, June 2, 2022

Journal Papers

[ J16 ] 

High-Accuracy Readout Circuits for High-Resolution Active-Matrix Resistive Sensor Arrays

Seong-Ro Lee, Wiman Yoo, and Jong-Seok Kim*

IEEE Sensors Journal, Dec. 2023  [Q1/ IF: 4.3]

[ J15 ]

A High-Light-Load-Efficiency, Low-Ripple-Voltage PFM Buck Converter for IoT Applications

Jong-Seok Kim, Jin-O Yoon, Byong-Deok Choi

IEEE Transactions on Power Electronics (TPEL), 37, 5763-5772, May 2022  [Q1 / IF: 5.967]

[ J14 ]

Uniform Pressure Responses for Nanomaterials-Based Biological On-Skin Flexible Pressure Sensor Array

Jong-Seok Kim, Yechan So, Sangmin Lee, Changhyun Pang, Wanjun Park, Sungwoo Chun

Carbon, 181, 169-176, Aug. 2021   [Q1 / IF: 11.307]

[ J13 ]

An Artificial Neural Tactile Sensing System

Sungwoo Chun*, Jong-Seok Kim*, Yongsang Yoo, Youngin Choi, Sung Jun Jung, Dongpyo Jang, Gwangyeob Lee, Kang-Il Song, Kum Seok Nam, Inchan Youn, Donghee Son, Changhyun Pang, Yong Jeong, Hachul Jung, Young-Jin Kim, Byong-Deok Choi, Jaehun Kim, Sung-Phil Kim, Wanjun Park, Seongjun Park   (*equally contributed)

Nature Electronics, 4, 429-438, Jun. 2021  [Q1 / IF: 33.255]    [Top journal in Electronic Engineering]

[ J12 ] 

A Low-Area and Fully-Nonlinear 10-Bit Column Driver with Low-Voltage DAC and Switched-Capacitor Amplifier for Active-Matrix Displays

Jong-Seok Kim, Jin-O Yoon, Byong-Deok Choi

IEEE Journal of Solid-State Circuits (JSSC), 56, 488-500, Feb. 2021 [Q1, IF: 6.126]    [Top circuit journal]

[ J11 ]

Electrical Stability Analysis of Dynamic Logic Using Amorphous Indium-Gallium-Zinc-Oxide TFTs

Yong-Duck Kim, Jong-Seok Kim, Jong-Il Lee, Ki-Lim Han, Beom-Su Kim, Jin-Seong Park, Byong-Deok Choi

IEEE Electron Device Letters , 40, 1128-1131, Jul. 2019  [IF: 4.816]

[ J10 ]

A High-Reliability Carry-Free Gate Driver for Flexible Displays Using a-IGZO TFTs

Jong-Seok Kim, Jung-Woo Byun, Jun-Hwan Jang, Yong-Duck Kim, Kilim Han, Jin-Seong Park, Byong-Deok Choi

IEEE Transactions on Electron Devices, 65, 3269-3276, Aug. 2018  (IF: 3.211)

[ J09 ]

Dynamic Logic Circuits Using a-IGZO TFTs

 Jong-Seok Kim, Jun-Hwan Jang, Yong-Duck Kim, Jung-Woo Byun, Kilim Han, Jin-Seong Park, Byong-Deok Choi

IEEE Transactions on Electron Devices, 64, 4123-4130, Oct. 2017  (IF: 3.211)

[ J08 ]

High-Efficiency Peak-Current-Control Non-Inverting Buck-Boost Converter using Mode Selection for Single Ni-MH Cell Battery Operation

Jong-Seok Kim, Jin-O Yoon, Jaeyun Lee, Byong-Deok Choi 

Analog Integrated Circuits and Signal Processing, 89, 297-306, Jul. 2016

[ J07 ]

Contact Pressure Level Indication Using Stepped Output Tactile Sensors

Eunsuk Choi, Onejae Sul, Juyoung Kim, Kyumin Kim, Jong-Seok Kim, Dae-Yong Kwon, Byong-Deok Choi, Seung-Beck Lee

Sensors, 16, 511, Apr. 2016

[ J06 ]

High-Accuracy, Compact Scanning Method and Circuit for Resistive Sensor Arrays

Jong-Seok Kim, Dae-Yong Kwon, Byong-Deok Choi

Sensors, 16, 155, Jan. 2016

[ J05 ]

A Low-Power Data Driving Method with Enhanced Charge Sharing Technique for Large-Screen LCD TVs

Dong-Un Kim, Jong-Seok Kim, Byong-Deok Choi

Journal of Display Technology, 11, 346-352, Jan. 2015

[ J04 ]

A New Decoder-Type Integrated Gate Driver with a-Si:H TFTs for Active-Matrix Displays

Jong-Seok Kim, Byong-Deok Choi 

Japanese Journal of Applied Physics, 53, 03CD03, Jan. 2014

[ J03 ]

Compact Decoder-Type Gate Driver Circuits with Hydrogenated Amorphous Silicon Thin Film Transistors for Active Matrix Displays

Jong-Seok Kim, Gyu-Tae Park, Hyun-Woo Kim, Byong-Deok Choi

Japanese Journal of Applied Physics, 52, 03BC01, Mar. 2013

[ J02 ]

Slew-Rate-Enhanced Rail-to-Rail Buffer Amplifier for TFT LCD Data Drivers

Jong-Seok Kim, Jae-Yoon Lee, Byong-Deok Choi

Electronics Letters, 48, 924-925, Jul. 2012

[ J01 ]

Image Quality Enhancement in AMOLED Microdisplay for Mobile Projectors

Byong-Deok Choi, In-Su Park, Jong-Seok Kim, Sung-Jin Lee, Byung Seong Bae

IEEE Transactions on Consumer Electronics, 57, 313-319, May 2011