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Head Up Display Using a Graphic Liquid Crystal Display
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English
Abstract
A new Head Up Display (HUD), using a graphic Liquid Crystal Display (LCD), is proposed.
Double-layered Super-Twisted Nematic (D-STN) LCD, which realizes a black/white display with high contrast, is one of the most promising solutions among several liquid crystal display modes. Contrast ratio is typically higher than 100 and operating temperature range is −20 °C to 70°C.
Backlight is also a problem to realize LCD-HUD. Hot-cathode fluorescent tube is used in our prototype HUD. Luminance of the display can be tuned from 40 cd/m2 to 1,200 cd/m2.
D-STN is proved to be a promising display device for HUD.
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Authors
- Yutaka Nakagawa - Asahi Glass Electronic Products R&D Center Co., Ltd.
- Tetsuro Ohta - Asahi Glass Electronic Products R&D Center Co., Ltd.
- Hiroshi Hasebe - Asahi Glass Electronic Products R&D Center Co., Ltd.
- Minora Akatsuka - Asahi Glass Electronic Products R&D Center Co., Ltd.
- Kenji Matsuhiro - Asahi Glass Electronic Products R&D Center Co., Ltd.
- Kazutoshi Sawada - Optrex Corp.
Topic
Citation
Nakagawa, Y., Ohta, T., Hasebe, H., Akatsuka, M. et al., "Head Up Display Using a Graphic Liquid Crystal Display," SAE Technical Paper 890289, 1989, https://doi.org/10.4271/890289.Also In
Automotive Information Systems and Electronic Displays-Recent Developments
Number: SP-0770; Published: 1989-02-01
Number: SP-0770; Published: 1989-02-01
References
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- Patterson S. Farrer J. Sargent R. Proa of SPIE. 958 114 1988
- Katayama M. Yano K. Ohtuka I. SAE Paper. SP-734, 880454
- Katoh K. Endo Y. Akatsuka M. Ohgawara M. Sawada K. 26 11 L1784 1987
- Koh H. Sawada K. Ohgawara M. Kuwata T. Tsubota H. Akatsuka H. Matsuhiro K. SID 88 Digest 53 1988