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47 results on '"Lee, Seok-Lyul"'

3. 45‐2: 14.6‐inch 202‐ppi Rollable Micro LED Display with Color Conversion Technology

Author

Liu, Chan-Jui, primary, Tsai, Cheng-Yeh, additional, Lin, Wei-Ting, additional, Cheng, Chun-Chung, additional, Tsai, Yi-Wei, additional, Chen, Wei-Chih, additional, Wu, Chih-Hung, additional, Hsieh, Kun-Lung, additional, Jang, Jia-Wen, additional, Huang, Chiao-Li, additional, Wang, Hsun-Yi, additional, Yu, Fang-Cheng, additional, Su, Wei-Jen, additional, Chih, Ssu-Hsien, additional, Chi, Hong-Sian, additional, Huang, Yu-Chun, additional, Tai, Chun-Han, additional, Fanjiang, Shih-chi, additional, Chan, Chun-Hsiang, additional, Lin, Chih-Chieh, additional, Hsieh, Chia-Ting, additional, Hung, Wei-Lun, additional, Lee, Seok-Lyul, additional, and Lin, Yu-Chieh, additional

Published
2023
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12. 17‐5: Distinguished Student Paper: Birefringent Light‐Shaping Film for Mini‐LED Backlights.

Author

Ziqian, He, Yin, Kun, Hsiang, En-Lin, Ming-Chun, Li, Lee, Seok-Lyul, Tien, Kun-Cheng, and Shin-Tson, Wu

Subjects
LED displays, LIQUID crystals, LIQUID crystal displays
Abstract

A new birefringent light‐shaping polymer‐dispersed liquid crystal (PDLC) film is experimentally demonstrated for mini‐LED backlit liquid crystal displays. Due to its angle‐sensitive transmission properties, such a volumetric PDLC diffuser helps to spread out the backlight faster, which in turn results in fewer mini‐LEDs or thinner display panel. [ABSTRACT FROM AUTHOR]

Published
2020
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19. 70‐1: Distinguished Paper:9.4‐inch 228‐ppi Flexible Micro LED Display

Author

Lee, Seok-Lyul, Cheng, Chun-Cheng, Liu, Chan-Jui, Yeh, Cheng-Nan, and Lin, Yu-Chieh

Abstract

9.4‐inch 228‐ppi full‐color micro LED display using the flexible LTPS‐TFT backplane has been successfully developed. In order to solve the interconnection of tiny micro LEDs, those size are less than 30um, we introduced the flip‐chip soldering technology for high resolution flexible micro LED displays. Contrast ratio of >1,000,000: 1 with brightness of 700 nits was realized by the full‐color micro LED display with uniform brightness and color shift free at any off‐axis viewing angles. These supreme micro LED visual performances will be provided more comfortable user experience for high resolution flexible automotive applications.

Published
2021
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26. Going beyond the limit of an LCD’s color gamut

Author

Chen, Hai-Wei, primary, Zhu, Rui-Dong, additional, He, Juan, additional, Duan, Wei, additional, Hu, Wei, additional, Lu, Yan-Qing, additional, Li, Ming-Chun, additional, Lee, Seok-Lyul, additional, Dong, Ya-Jie, additional, and Wu, Shin-Tson, additional

Published
2017
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30. 17‐5: Distinguished Student Paper:Birefringent Light‐Shaping Film for Mini‐LED Backlights

Author

Ziqian, He, Yin, Kun, Hsiang, En-Lin, Ming-Chun, Li, Lee, Seok-Lyul, Tien, Kun-Cheng, and Shin-Tson, Wu

Abstract

A new birefringent light‐shaping polymer‐dispersed liquid crystal (PDLC) film is experimentally demonstrated for mini‐LED backlit liquid crystal displays. Due to its angle‐sensitive transmission properties, such a volumetric PDLC diffuser helps to spread out the backlight faster, which in turn results in fewer mini‐LEDs or thinner display panel.

Published
2020
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31. Prospects and challenges of mini‐LEDand micro‐LEDdisplays

Author

Huang, Yuge, Tan, Guanjun, Gou, Fangwang, Li, Ming‐Chun, Lee, Seok‐Lyul, and Wu, Shin‐Tson

Abstract

We review the emerging mini/micro–light‐emitting diode (LED) displays featuring high dynamic range and good sunlight readability. For mini‐LED backlit liquid crystal displays (LCDs), we quantitatively evaluate how the device contrast ratio, local dimming zone number, and local light profile affect the image quality. For the emissive mini/micro‐LED displays, the challenges of ambient contrast ratio and size‐dependent power efficiency are analyzed. Two figure‐of‐merits are proposed for optimizing the optical and electrical performances of mini/micro‐LED displays. We review the emerging mini/micro‐LED displays featuring high‐dynamic range and good sunlight readability. For mini‐LED backlit LCDs, we quantitatively evaluate how the device contrast ratio, local dimming zone number, and local light profile affect the image quality. For the emissive mini/micro‐LED displays, we propose two figure‐of‐merits for optimizing ambient contrast ratio and power efficiency.

Published
2019
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43. 44‐1: Distinguished Student Paper:Motion‐blur‐free LCD for High Resolution Virtual Reality Displays

Author

Gou, Fangwang, Chen, Haiwei, Li, Ming-Chun, Lee, Seok-Lyul, and Wu, Shin-Tson

Abstract

A new liquid crystal display device with fast response time, high transmittance, and low voltage for virtual reality is reported. When driven at 90Hz with 17% duty ratio, the motion picture response time is 1.5 ms, similar to CRT, leading to indistinguishable motion blur. Moreover, this device enables high resolution density because only one thin‐film transistor per pixel is needed and it has a built‐in storage capacitor.

Published
2018
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44. Motion‐blur‐free LCDfor high‐resolution virtual reality displays

Author

Gou, Fangwang, Chen, Haiwei, Li, Ming‐Chun, Lee, Seok‐Lyul, and Wu, Shin‐Tson

Abstract

A new liquid crystal display device with fast response time, high transmittance, and low voltage for virtual reality is reported. When driven at 90 Hz with 17% duty ratio, the motion picture response time is 1.5 ms, which is comparable with cathode‐ray tube, leading to indistinguishable motion blur. Moreover, this device enables high‐resolution density because only one thin‐film transistor per pixel is needed and it has a built‐in storage capacitor. A new liquid crystal display device with fast response time, high transmittance, and low voltage for high‐resolution virtual reality is reported. When driven at 90 Hz with 17% duty ratio, the motion picture response time is 1.5 ms, which is comparable with CRT, leading to indistinguishable motion blur.

Published
2018
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46. Wide nematic range alkenyl diphenyldiacetylene liquid crystals

Author

S. S. Keast, T. A. Dorschner, Lee Seok-Lyul, Shin-Tson Wu, M. E. Neubert, D. G. Abdallah, and Margaret E. Walsh

Subjects
chemistry.chemical_classification, Range (particle radiation), Birefringence, Materials science, Physics and Astronomy (miscellaneous), Double bond, business.industry, Infrared, Crystallography, Viscosity, Optics, chemistry, Liquid crystal, Side chain, Figure of merit, business
Abstract

Several alkenyl diphenyldiacetylene liquid crystals were synthesized and their physical properties evaluated. The introduction of a double bond in the side chain leads to an unexpectedly wide nematic range and an extraordinarily large figure of merit at elevated temperatures. These liquid crystals are particularly attractive for infrared laser-beam steering.

Published
2000

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