| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem, wherein a display board using an edge light is ordinarily a one-side luminous display board, but when both sides of the display board is desired to be made luminous, it is necessary to combine the one-side luminous boards back to back, to make both sides luminous and this causes increase in the thickness and the weight. <P>SOLUTION: An edge light having LEDs arranged in two columns, two light guide plates, a reflecting sheet and two light diffusing sheets are integrated into a single body and are stored in an aluminum frame. Thus a thin and light both-side luminous display board is realized. <P>COPYRIGHT: (C)2011,JPO&INPIT |
