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2. 90‐2: Invited Paper: Toward the Challenges of 4K MR Using AMLCD.

Author

Wu, Yung‐Hsun, Tsai, Chia‐Hao, Chang, Chih‐Hao, Wu, Yi‐Hsiu, Cherng, Yi‐Shiuan, Tai, Ming‐Jou, Yang, Cheng‐Yu, Chiu, Wei‐Yen, Chang, Shu‐Hui, and Yang, Chiu‐Lien

Subjects
UNIFORMITY, COLOR
Abstract

This article discusses the challenges of adopting high‐resolution AMLCD in 4K MR technology. Key innovations include LTPO for improved the aperture of VR LCDs by 20‐30%, especially for highres VR, and COA to reduce transmittance issues and enhance color uniformity in 4K VR LCDs. [ABSTRACT FROM AUTHOR]

Published
2024
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3. 49‐3: Invited Paper: High‐Resolution Color‐Reflective Bistable Cholesteric Liquid Crystal Technology for Signage Applications.

Author

Yao, I-An, Lee, Wei-Cheng, Chen, Po-Yang, Yao, Ping-Chun, Lin, Jiunn-Shyong, Wu, Yung-Hsun, and Yang, Chiu-Lien

Subjects
CHOLESTERIC liquid crystals, ELECTRONIC paper, REFLECTANCE, SIGNAGE, PIXELS, LIQUID crystal displays
Abstract

An optimized color‐reflective LCD with high optical performances and cost‐effective structure has been proposed by association with cholesteric liquid crystal technology. By way of a color dithering algorithm, the cholesteric liquid crystal display (Ch‐LCD) can visualize a 24‐bit RGB color pixel and display over 16 million colors. Moreover, the waveform module (WF) is applied to emulate the display timing controller, which is a lowcost and more accessible way to drive the Ch‐LCD. In this paper, we demonstrated a 13.3‐inch passive matrix (PM) driven Ch‐LCD with a high resolution of 202 PPI, high reflectance of 30%, and high color gamut of 20%, which is suitable for electronic signage applications. [ABSTRACT FROM AUTHOR]

Published
2024
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4. 11‐4: Invited Paper: Advanced Augmented Reality Head‐Up Display Utilizing Micro LED Display Technology.

Author

Yang, Chiu-Lien, Lin, Chih-Lung, Hsieh, Hong-Sheng, Kuo, Shu-Ming, Weng, Rueyjer, Kuo, Kuan-Hung, Hsieh, Tsau-Hua, Hsieh, Chih-Yung, Chang, Shu-Hui, and Wu, Yung-Hsun

Subjects
AUGMENTED reality, LED displays, SAFETY
Abstract

This article presents an AR HUD using micro LED technology for enhanced brightness and image quality. It utilizes micro LED's high brightness to merge AR images seamlessly with external views and employs Nature 3D technology to improve the HUD's 3D depth, significantly boosting vehicle safety. [ABSTRACT FROM AUTHOR]

Published
2024
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6. 49‐3: Invited Paper:High‐Resolution Color‐Reflective Bistable Cholesteric Liquid Crystal Technology for Signage Applications

Author

Yao, I-An, Lee, Wei-Cheng, Chen, Po-Yang, Yao, Ping-Chun, Lin, Jiunn-Shyong, Wu, Yung-Hsun, and Yang, Chiu-Lien

Abstract

An optimized color‐reflective LCD with high optical performances and cost‐effective structure has been proposed by association with cholesteric liquid crystal technology. By way of a color dithering algorithm, the cholesteric liquid crystal display (Ch‐LCD) can visualize a 24‐bit RGB color pixel and display over 16 million colors. Moreover, the waveform module (WF) is applied to emulate the display timing controller, which is a lowcost and more accessible way to drive the Ch‐LCD. In this paper, we demonstrated a 13.3‐inch passive matrix (PM) driven Ch‐LCD with a high resolution of 202 PPI, high reflectance of 30%, and high color gamut of 20%, which is suitable for electronic signage applications.

Published
2024
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7. 90‐2: Invited Paper:Toward the Challenges of 4K MR Using AMLCD

Author

Wu, Yung‐Hsun, Tsai, Chia‐Hao, Chang, Chih‐Hao, Wu, Yi‐Hsiu, Cherng, Yi‐Shiuan, Tai, Ming‐Jou, Yang, Cheng‐Yu, Chiu, Wei‐Yen, Chang, Shu‐Hui, and Yang, Chiu‐Lien

Abstract

This article discusses the challenges of adopting high‐resolution AMLCD in 4K MR technology. Key innovations include LTPO for improved the aperture of VR LCDs by 20‐30%, especially for highres VR, and COA to reduce transmittance issues and enhance color uniformity in 4K VR LCDs.

Published
2024
Full Text
View/download PDF

8. 11‐4: Invited Paper:Advanced Augmented Reality Head‐Up Display Utilizing Micro LED Display Technology

Author

Yang, Chiu-Lien, Lin, Chih-Lung, Hsieh, Hong-Sheng, Kuo, Shu-Ming, Weng, Rueyjer, Kuo, Kuan-Hung, Hsieh, Tsau-Hua, Hsieh, Chih-Yung, Chang, Shu-Hui, and Wu, Yung-Hsun

Abstract

This article presents an AR HUD using micro LED technology for enhanced brightness and image quality. It utilizes micro LED's high brightness to merge AR images seamlessly with external views and employs Nature 3D technology to improve the HUD's 3D depth, significantly boosting vehicle safety.

Published
2024
Full Text
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14. 5‐2: Invited Paper:High dynamic range 2117‐ppi LCD for VR displays

Author

Wu, Yung-Hsun, Tsai, Chia-Hao, Wu, Yi-Hsiu, Cherng, Yi-Shiuan, Tai, Ming-Jou, Huang, Potilar, Yao, I-An, and Yang, Chiu-Lien

Abstract

We demonstrate a mini‐LED backlit 2117‐ppi LCD for virtual reality displays, which greatly enhances the dynamic range and mitigates the screen door effect. The major challenges and potential solutions for achieving over 2000‐ppi LCDs and the advantages of using mini‐LED backlight and low power solutions will be discussed.

Published
2023
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15. 67‐2: Invited Paper: Displayable Liquid Crystal Glasses with Clear See‐Through Vision.

Author

Chen, Hung-Shan, Chang, Chia-Ming, Chen, Chien-Chung, Chen, Sung-Nan, Cheng, Chang-Chiang, Wu, Yung-Hsun, and Yang, Chiu-Lien

Subjects
LIQUID crystals, CRYSTAL glass, MOBILE operating systems, MOBILE apps, SOCIAL media
Abstract

We propose an innovative reflective displayable technology named LiqxtalTM Graph, designed to present digital content on the exterior while ensuring a clear see‐through vision for the wearer. Employing TFT liquid crystal display (TFT‐LCD) architecture, this technology locally manipulates the polarization state and reflectance of incident light through liquid crystal and interfaces. By seamlessly integrating with wireless control systems and mobile app platforms, this technology enables the glasses to convey digital information between users. Applications encompass real‐time signage, interactive gaming, and social media engagement. [ABSTRACT FROM AUTHOR]

Published
2024
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16. 67‐2: Invited Paper:Displayable Liquid Crystal Glasses with Clear See‐Through Vision

Author

Chen, Hung-Shan, Chang, Chia-Ming, Chen, Chien-Chung, Chen, Sung-Nan, Cheng, Chang-Chiang, Wu, Yung-Hsun, and Yang, Chiu-Lien

Abstract

We propose an innovative reflective displayable technology named LiqxtalTMGraph, designed to present digital content on the exterior while ensuring a clear see‐through vision for the wearer. Employing TFT liquid crystal display (TFT‐LCD) architecture, this technology locally manipulates the polarization state and reflectance of incident light through liquid crystal and interfaces. By seamlessly integrating with wireless control systems and mobile app platforms, this technology enables the glasses to convey digital information between users. Applications encompass real‐time signage, interactive gaming, and social media engagement.

Published
2024
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18. Variable optical attenuator with a polymer-stabilized dual-frequency liquid crystal

Author

Wu, Yung-Hsun, Liang, Xiao, Lu, Yan-Qing, Du, Fang, Lin, Yi-Hsin, and Wu, Shin-Tson

Subjects
Optics -- Research, Astronomy, Physics
Abstract

A transmission-type variable optical attenuator (VOA) based on a polymer-stabilized dual-frequency liquid crystal (PSDFLC) is demonstrated at [lambda] = 1.55 [micro]m. The VOA is highly transparent in the voltage-off state but scatters light in the voltage-on state. By using a birefringent beam displacer incorporated with half-wave plates, we can obtain a VOA that is polarization independent and that exhibits a 31 dB dynamic range. The polymer networks and dual-frequency effect together reduce the response time (rise + decay) of a 16 [micro]m PSDFLC cell to 30 ms at room temperature and at a voltage of 24 [V.sub.rms]. OCIS codes: 230.3720, 160.5470.

Published
2005

22. 70‐3: Invited Paper:High‐Resolution Light‐Field VR LCD

Author

Wu, Yung-Hsun, Chang, Chuan-Chung, Tsou, Yu-Shih, Lo, Yi-Chien, Tsai, Chia-Hao, Lu, Chih-hung, Yang, Chiu-Lien, and Chuang, Fu-Ming

Abstract

An optimized Light Field (LF) VR display with ultra‐high pixel density LCD (3.1 inch 1411 PPI) is presented. Field of view (FOV) and the experience of immersion are improved by adopting the 3%3% resolution display panel. Functions of vision correction (glasses free), reduced Vergence‐Accommodation‐Conflict (VAC) and enlarged eye box with eye tracking are also realized.

Published
2022
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23. 47‐1: Invited Paper:High Resolution HDR VR display using Mini‐LED

Author

Yang, Chiu-Lien, Wu, Yung-Hsun, Yao, I-An, Tsou, Yu-Shih, Tsai, Chia-Hao, and Lin, Jiunn-Shyong

Abstract

We present a non‐dizzy high resolution HDR VR display technology, which can effectively improve the issue of current VR products, such as screen door effect, motion blur, and visual fatigue problem with high dynamic range image. This product achieves the prefect image performance and highly improves the comfort of usage.

Published
2021
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25. 45‐1: Invited Paper:Multi‐Spliced LCDs for Foldable Mobile Device ‐ Seamless Technology and Applications

Author

Wu, Yung-Hsun, Tsai, Chia-Hao, Cheng, Chang-Chiang, Hsu, Yu Chun, and Yang, Chiulien

Abstract

This article presents the use of spliced LCD displays on foldable mobile devices. In order to achieve a perfect spliced display, we need to use a four‐sided narrow border design LCD and visual seamless technology. The article introduces two new techniques for ultra narrow borders and uses these two techniques to overcome the rainbow pattern and textual continuity of the seam edges between two adjacent LCD displays.

Published
2020
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32. New Two-Domain TN/LCD With Identical, Symmetrical and + or - 80 degs Viewing Cone in Left, Right, Up and Down Viewing Zones

Author

KOPIN CORP WESTBOROUGH MA, Ong, Hiap L., Wu, Yung-Hsun, KOPIN CORP WESTBOROUGH MA, Ong, Hiap L., and Wu, Yung-Hsun

Abstract

We invented a new two-domain TN/LCD with excellent viewing performance with identical, symmetrical 160 degrees (plus or minus 80 degrees) viewing cone in all four major viewing zones. The display also showed excellent color tracking and no gray scale reversal. Each sub-pixel is twisted nematic (TN) based with the LC alignments oriented in the horizontal and vertical directions. This is different from the conventional TN/LCD where the LC alignments are oriented in the two diagonal directions. In this special two-domain TN/LCD, the two sub-pixels show complementary asymmetrical horizontal and vertical viewing zones. Thus the combined two-domain effects show symmetrical and identical optical performances in the four major viewing zones. The viewing angle and display performances can be further improved by optical compensation films, in particular, the combination of types A and C films to enlarge the viewing angles in the diagonal viewing directions., Presented at Display Technologies III, International Optoelectronics Symposium, Taipei, Taiwan, 26-27 Jul 2000. Pub. in Proceedings of SPIE, v4079 p160-175, 2000. ISSN 0277-786X. This article is from ADA398270 Display Technologies III Held in Taipei, Taiwan on 26-27 July 2000

Published
2000

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