| 摘要 |
PURPOSE:To clearly display information with excellent color balance by rotationally symmetrically arranging color mixing and wide angle type LEDs disposed with elements each of which can display two or more colors. CONSTITUTION:Each of sixteen wide angle type LEDs 11 disposed in a unit main body 1 is provided with two chips to be used as electrodes serving also as reflector and divided into tow kinds, i.e. green yellow type wide angle LEDs 21 and red type wide angle LEDs 22. One chip out of two in the LED 22 is red chip and the other is green yellow chip. The LEDs 22 are arranged rotationally symmetrically about the intersecting point on which broken lines of the body 1 intersect with each other. Thereby even when the unit body 1 is observe from the right/left direction, the display screen can be observed at the same degree of color mixing by lighting up all the wide angle LEDs. Consequently, information can clearly be displayed with excellent color balance. |
