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14 results on '"Roh, Cheollae"'

2. 88‐3: Fast Selective Laser‐Induced Etching and Asymmetric 3D Hologram Laser Beam for Narrow Bezel Thin Display †.

Author

Kim, Hyungsik, Kim, Jeongho, Mishchik, Konstantin, Jang, Seunghoon, Hwang, Seyeon, Lee, Kisang, Jung, Woohyun, You, Junghwa, Ryu, Jekil, Jeong, Seongho, and Roh, Cheollae

Subjects
LASER beam cutting, LASER beams, MANUFACTURING processes, HOLOGRAPHY, ETCHING
Abstract

Here we demonstrate fast selective laser‐induced etching (SLE) process with three‐dimensional (3D) hologram optics to reduce display bezel thickness with cost effective methods. To apply fast SLE for display manufacturing, one‐side etching process should be presumed to protect display active area. We developed one‐side selective laser‐induced etching with asymmetric 3D hologram laser beam satisfying with commercial mechanical strength. Faster etch process having etch rate 10 µm/min than common SLE, 1~3 µm/min was developed. Furthermore, we achieve that bezel thickness is 100 µm shorter than wheel scribing and CNC grinding. [ABSTRACT FROM AUTHOR]

Published
2024
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3. 88‐3: Fast Selective Laser‐Induced Etching and Asymmetric 3D Hologram Laser Beam for Narrow Bezel Thin Display †

Author

Kim, Hyungsik, Kim, Jeongho, Mishchik, Konstantin, Jang, Seunghoon, Hwang, Seyeon, Lee, Kisang, Jung, Woohyun, You, Junghwa, Ryu, Jekil, Jeong, Seongho, and Roh, Cheollae

Abstract

Here we demonstrate fast selective laser‐induced etching (SLE) process with three‐dimensional (3D) hologram optics to reduce display bezel thickness with cost effective methods. To apply fast SLE for display manufacturing, one‐side etching process should be presumed to protect display active area. We developed one‐side selective laser‐induced etching with asymmetric 3D hologram laser beam satisfying with commercial mechanical strength. Faster etch process having etch rate 10 µm/min than common SLE, 1~3 µm/min was developed. Furthermore, we achieve that bezel thickness is 100 µm shorter than wheel scribing and CNC grinding.

Published
2024
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6. Stress control during ultrashort pulses laser for glass machining

Author

Kim, Hyungsik, primary, Mishchik, Konstantin, additional, Jung, Woohyun, additional, Voronov, Alexander, additional, Kim, Jeongho, additional, You, Junghwa, additional, Jang, Seunghoon, additional, Park, Sunggyu, additional, Yoo, Kyunghan, additional, RYU, JEKIL, additional, Jeong, SeongHo, additional, and ROH, CHEOLLAE, additional

Published
2023
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7. Optimization of Bessel beam optics for high-quality glass cutting

Author

Kim, Hyungsik, primary, Mishchik, Konstantin, additional, Voronov, Alexander, additional, Kim, Jeongho, additional, Jung, Woohyun, additional, You, Junghwa, additional, Jang, Seunghoon, additional, Park, Sunggyu, additional, Yoo, Kyunghan, additional, Baek, Sangwoong, additional, Ryu, Jekil, additional, Jeong, Seongho, additional, and Roh, Cheollae, additional

Published
2022
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