TY - JOUR
T1 - Optimum Number of Display Colors and their Chromaticity Regions for LED Traffic Information Board
AU - Nakajima, Santaro
AU - Tsuri, Shinsuke
AU - Nakashima, Yoshio
AU - Takamatsu, Mamoru
PY - 2003
Y1 - 2003
N2 - Traffic information boards have a vital role in promoting safe and efficient road traffic, by providing the drivers with relevant traffic information on a real-time basis. To achieve good visibility and eye-catching quality, we must know the optimum number of display colors and their chromaticity regions so that the road users can correctly recognize displayed information in a short time. We attempted to determine an optimum number of display colors based on the categorical color (basic perceived color) technique, as well as to define the chromaticity regions for display colors so that a given color is most effectively discriminated from the others. The results showed that the optimum number of display colors is ten, and categorization of the so-defined ten display colors on the chromaticity diagram is extremely useful in designing a traffic information board.
AB - Traffic information boards have a vital role in promoting safe and efficient road traffic, by providing the drivers with relevant traffic information on a real-time basis. To achieve good visibility and eye-catching quality, we must know the optimum number of display colors and their chromaticity regions so that the road users can correctly recognize displayed information in a short time. We attempted to determine an optimum number of display colors based on the categorical color (basic perceived color) technique, as well as to define the chromaticity regions for display colors so that a given color is most effectively discriminated from the others. The results showed that the optimum number of display colors is ten, and categorization of the so-defined ten display colors on the chromaticity diagram is extremely useful in designing a traffic information board.
KW - categorical color
KW - chromaticity diagram
KW - display colors
KW - light emitting diode
KW - road view environment
KW - traffic information board
UR - http://www.scopus.com/inward/record.url?scp=85024469185&partnerID=8YFLogxK
U2 - 10.1541/ieejfms.123.1227
DO - 10.1541/ieejfms.123.1227
M3 - 学術論文
AN - SCOPUS:85024469185
SN - 0385-4205
VL - 123
SP - 1227
EP - 1234
JO - IEEJ Transactions on Fundamentals and Materials
JF - IEEJ Transactions on Fundamentals and Materials
IS - 12
ER -