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Start Over Author "Lan Yi" Journal sid symposium digest of technical papers
27 results on '"Lan Yi"'

3. P‐74: Student Poster: High Efficiency μLED Light Engine for AR/VR Displays.

Author

Hsiang, En-Lin, He, Ziqian, Yang, Zhiyong, Lan, Yi-Fen, and Wu, Shin-Tson

Subjects
AUGMENTED reality, COMPOUND parabolic concentrators, POSTERS, ENGINES
Abstract

By tailoring the radiation pattern through cavity effect, together with a compact compound parabolic concentrator, the light efficiency of μLED is increased by 1.9×. Such a high brightness μLED light engine helps to enhance the ambient contrast ratio for AR displays or to reduce the power consumption for VR headsets. [ABSTRACT FROM AUTHOR]

Published
2022
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5. 54‐4: Distinguished Student Paper:Low‐Diffraction Transparent μLED Displays with Optimized Pixel Structure

Author

Yang, Qian, Yang, Zhiyong, Lan, Yi-Fen, and Wu, Shin-Tson

Abstract

A semi‐analytical model is built based on diffraction theory and human angular resolution to quantitatively evaluate the diffraction effect of transparent displays, including micro‐LED and OLED. By optimizing the pixel structures within a 2×2‐pixel size region, the relative diffraction intensity is reduced by 42% at the 50% aperture ratio regardless ofpixel density.

Published
2022
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6. P‐74: Student Poster:High Efficiency μLED Light Engine for AR/VR Displays

Author

Hsiang, En-Lin, He, Ziqian, Yang, Zhiyong, Lan, Yi-Fen, and Wu, Shin-Tson

Abstract

By tailoring the radiation pattern through cavity effect, together with a compact compound parabolic concentrator, the light efficiency of μLED is increased by 1.9×. Such a high brightness μLED light engine helps to enhance the ambient contrast ratio for AR displays or to reduce the power consumption for VR headsets.

Published
2022
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8. 62‐4: Distinguished Student Paper:Doubling the Optical Efficiency of Color‐Converted MicroLED Displays with a Patterned Cholesteric Liquid‐Crystal Polymer Film

Author

Hsiang, En-Lin, Li, Yannanqi, He, Ziqian, Zhan, Tao, Zhang, Caicai, Lan, Yi-Fen, Dong, Yajie, and Wu, Shin-Tson

Abstract

We develop a patterned cholesteric liquid crystal polymer film with reflection and scattering states. By integrating this film into a color‐converted micro‐LED display, the optical efficiency is increased by 2.14x at 90% Rec.2020 color gamut and the average angular color shift δu'v′ is reduced from 0.03 to 0.018.

Published
2021
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15. 34-2: Invited Paper : Novel Four-Transistor Pixel Circuit Using Source-Follower Structure for Field-Sequential-Color Blue-Phase Liquid Crystal Displays

Author

Hung, Chia-Che, primary, Hsieh, Hsiang-Yuan, additional, Lin, Ya-Ting, additional, Yu, Fang-Cheng, additional, Tsao, Tzu-I, additional, Lu, Min-Yao, additional, Tseng, Bo-Shiang, additional, Hung, Ching-Lang, additional, Huang, Pu-Jung, additional, Chen, Yi-Ting, additional, Hsieh, Chia-Ting, additional, Lin, Ching-Hsiang, additional, Lan, Yi-Fen, additional, Yen, Ze-Yu, additional, Chuang, Chin-Tang, additional, Ozawa, Tokuro, additional, Tsai, Cheng-Yeh, additional, Kuo, Chia-Wei, additional, Lin, Ching-Huan, additional, Chen, Po-Hsun, additional, Lin, Chih-Lung, additional, and Sugiura, Norio, additional

Published
2017
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16. 4‐2: Distinguished Student Paper:High Efficiency Color‐Converted Micro‐LED Displays

Author

Gou, Fangwang, Hsiang, En-Lin, Tan, Guanjun, Lan, Yi-Fen, Tsai, Cheng-Yeh, and Wu, Shin-Tson

Abstract

With funnel‐tube array, the optical efficiency of the color‐converted micro‐LED display is improved by ~3X, while the crosstalk is eliminated. After optimization of the taper angle, the ambient contrast ratio is also improved due to higher light intensity.

Published
2019
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17. 37.1:Distinguished Paper: A Novel Blue Phase Liquid Crystal Display Applying Wall-Electrode and High Driving Voltage Circuit

Author

Tsai, Cheng-Yeh, primary, Yu, Fang-Cheng, additional, Lan, Yi-Fen, additional, Huang, Pu-Jung, additional, Lin, Szu-Yu, additional, Chen, Yi-Ting, additional, Tsao, Tzu-I, additional, Hsieh, Chia-Ting, additional, Tseng, Bo-Shiang, additional, Kuo, Chia-Wei, additional, Lin, Ching-Huan, additional, Kuo, Chien-Chih, additional, Chen, Chung-Hung, additional, Hsieh, Hsiang-Yuan, additional, Chuang, Chin-Tang, additional, Sugiura, Norio, additional, Lin, Chih-Lung, additional, and Cheng, Mao-Hsun, additional

Published
2015
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19. 28.3: Flexible Substrate with Low Reflection, Low Haze, Self‐cleaning, and High Hardness by Nano‐structured Hard Coating and Surface Treatment

Author

Lan, Yi‐Hsin, primary, Yang, Teng‐Yi, additional, Liu, Yu‐Hao, additional, Lin, Di‐Hong, additional, Wang, Bo‐Hua, additional, Wei, Mao‐Kuo, additional, Chiu, Tien‐Lung, additional, Lin, Chi‐Feng, additional, Peng, Lung‐Han, additional, Cheng, I‐Chun, additional, Li, I‐Yin, additional, Wei, Chung‐Kuang, additional, and Lee, Jiun‐Haw, additional

Published
2014
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20. 17.1:Invited Paper: Polymer-Stabilized Blue Phase Liquid Crystal Displays Applying Novel Groove Cell Structure

Author

Tsai, Cheng-Yeh, primary, Tseng, Te-Jen, additional, Wang, Lin-Yung, additional, Yu, Fang-Cheng, additional, Lan, Yi-Fen, additional, Huang, Pu-Jung, additional, Lin, Szu-Yu, additional, Chen, Kuan-Ming, additional, Tseng, Bo-Shiang, additional, Kuo, Chia-Wei, additional, Lin, Ching-Huan, additional, Lu, Jen-Kuei, additional, and Sugiura, Norio, additional

Published
2013
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24. 17.3L: Late-News Paper: Enhancing the Contrast Ratio of Blue Phase LCDs.

Author

Liu, Yifan, Lan, Yi-fen, Zhang, Hongxia, Zhu, Ruidong, Xu, Daming, Tsai, Cheng-Yeh, Lu, Jen-Kuei, Sugiura, Norio, Lin, Yu-Chieh, and Wu, Shin-Tson

Subjects
LIQUID crystals, OPTICAL polarization, LIGHT transmission, POLARIZERS (Light), OPTICAL instruments
Abstract

Experimental evidence proves that polymer-stabilized blue phase liquid crystal is not perfectly optically isotropic. The optical rotatory power (ORP) of double twist cylinders causes the polarization axis of the transmitted light to rotate a small angle, and leaks through the crossed polarizers. Rotating the analyzer by ∼2o to correct this ORP can improve the contrast ratio by 3X. [ABSTRACT FROM AUTHOR]

Published
2013
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25. 37.1: Distinguished Paper: A Novel Blue Phase Liquid Crystal Display Applying Wall-Electrode and High Driving Voltage Circuit.

Author

Tsai, Cheng‐Yeh, Yu, Fang‐Cheng, Lan, Yi‐Fen, Huang, Pu‐Jung, Lin, Szu‐Yu, Chen, Yi‐Ting, Tsao, Tzu‐I, Hsieh, Chia‐Ting, Tseng, Bo‐Shiang, Kuo, Chia‐Wei, Lin, Ching‐Huan, Kuo, Chien‐Chih, Chen, Chung‐Hung, Hsieh, Hsiang‐Yuan, Chuang, Chin‐Tang, Sugiura, Norio, Lin, Chih‐Lung, and Cheng, Mao‐Hsun

Subjects
LIQUID crystal displays, ELECTRODES, ELECTRIC potential, POLYMERS, OPTOELECTRONIC devices
Abstract

A novel polymer-stabilized blue phase liquid crystal display (PS-BPLCD) using an optimized BPLC for new wall-electrode cell structure and also new driving method has been developed. Those technologies enable BPLCDs to apply conventional source driver IC in AMLCD applications. This novel PS-BPLCDs successfully achieved high-performance LCDs with over 2 times higher optoelectronic properties and a superior reliability. [ABSTRACT FROM AUTHOR]

Published
2015
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26. 17.1: Invited Paper: Polymer-Stabilized Blue Phase Liquid Crystal Displays Applying Novel Groove Cell Structure.

Author

Tsai, Cheng-Yeh, Tseng, Te-Jen, Wang, Lin-Yung, Yu, Fang-Cheng, Lan, Yi-Fen, Huang, Pu-Jung, Lin, Szu-Yu, Chen, Kuan-Ming, Tseng, Bo-Shiang, Kuo, Chia-Wei, Lin, Ching-Huan, Lu, Jen-Kuei, and Sugiura, Norio

Subjects
LIQUID crystal displays, POLYMERS, CHOLESTERIC liquid crystals, ELECTRIC fields, LIGHT sources
Abstract

Blue phase liquid crystal displays (BPLCDs) have attracted considerable attention in recent years because of its many advantages. However, BPLCDs exhibit narrow temperature range, high driving voltage, and tough process. In our works, polymer-stabilized technology using newly optimized BPLC material was applied to enlarge BP temperature range. In order to overcome high driving voltage, 2D1G design was used to apply conventional source driver IC for cost. Furthermore, novel groove cell structure which could gain more effective electric field without adding special masks for the groove was successfully implemented. Finally, 10-inch BPLCDs was demonstrated by optimization of ODF process. [ABSTRACT FROM AUTHOR]

Published
2013
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27. Identification of Blue-Phase Liquid Crystal by CIE.

Author

Lan, Yi-Fen, Tsai, Cheng-Yeh, Ku, Po-Jen, Wang, Ling-Yung, Huang, Tai-Hsiang, Liu, Chu-Yu, and Sugiura, Norio

Subjects
POLYMERS, LIQUID crystal devices, TECHNOLOGICAL innovations, SCATTERING (Physics), LIGHT filters
Abstract

We reported a new characterization of polymer stabilized blue phase liquid crystal (PSBPLC) by using CIE examination. The results of CIE curve rendered a remarkable turning point when BPII formed in the test cell. We believe this new finding will be useful in manufacturing PSBPLC displays. [ABSTRACT FROM AUTHOR]

Published
2012
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