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LCD Instrument Panel Design for Good Legibility
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English
Abstract
Means of improving LCD instrument panel legibility, and several important factors which must be taken into consideration to achieve this, are described.
Legibility is thoroughly investigated by means of a refined contrast ratio relation.
The relationship between the background brightness and the display brightness required to allow the viewer to recognize the symbols displayed was obtained experimentally in order to determine the optimum contrast ratio for the display.
For designing an LCD instrument panel with improved legibility, the following factors must be taken into account: making the contrast ratio nearly constant beyond a certain level, avoiding undesirable surface reflection from the display, and insuring a minimum brightness level.
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Authors
Citation
Ueda, F. and Horikiri, K., "LCD Instrument Panel Design for Good Legibility," SAE Technical Paper 860350, 1986, https://doi.org/10.4271/860350.Also In
References
- Matsushita K. Akeyoshi T. Nakagawa Y. Kadoo F. Matsumoto T. “LCD Legibility on Color for Automotive Applications” SAE paper 840153 February 1984
- Woodhouse M.M. Martinec R.C. Sendelbach D.R. “Graphics and Lighting Development for LCDs in an Automotive Environment” SAE paper 840147 February 1984
- Okabayashi S. Nomura H. Adachi M. Kawata H. Tanimoto S. “New Automotive Applications for Liquid crystal Displays” SAE paper 840144 1984
- Horikiri K. Ueda F. Ideno H. “Liquid Crystal Display Device” US Patent No. 4,519,679 and UK Patent GB 2108697B
- Itoh H. Katayama K. Uota K. Kumagai N. Saga I. “LCD Instrument Panel for Automobiles” SAE paper 820009 February 1982