This study aims to analyze the development trends of intelligent device interface improvements, specifically the car dashboards, by applying liquid crystal display technology. The methodology used in this study is mainly a comparison and analysis of the improvements that have been made. The objects in the study were several old version dashboards display instruments that were compared against the improved version of the LCDs. This paper analyses the requirements of car operators, with various proficiency for drivers’ information, in enhancing the modern car dashboards displays. Besides, this study further delves into ways through which instrument interface intelligently can be improved to adapt effectively to all kinds of drivers. This study also touches on an analytical view of information targeting drivers. This is a scientific technique to determine the extent of information needed from drivers in different circumstances by having precise or averaged information about the drivers; it is easier to integrate this information into the human interface that helps in these modern car operations. The results of the study show that the current LCD Dashboards are valuable, accurate, precise user friendly, and improved with integrated ICT pieces of equipment. This makes them much better than the older traditional systems of the car dashboards.

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A Study of Trends on Human-Machine Interface Design in Modern Vehicles

Improved VHC (Very High Contrast) LCD for Automotive Dashboard Displays

Double Layered Super Twisted Nematic LCD (D-STN) which can be operated by 1/128 duty ratio is presented Two conflicting requirements, good visibility and a wide operating temperature range, are fulfilled through optimization of cell parameters, such as twist angle, pretilt angle of liquid crystal to glass substrate and elastic properties of liquid crystal material The response time of LCD decreases with increasing temperature Hence at high temperature, the "frame response" phenomenon is observed and this results in reduction of contrast ratio The authors propose multiple line selection (MLS) method for increasing contrast ratio at high temperature

Kazuaki Ohara

Papers

Improved VHC (Very High Contrast) LCD for Automotive Dashboard Displays

Highly multiplexed dot-matrix lcd suitable for wide temperature range