| 摘要 |
PROBLEM TO BE SOLVED: To provide an illuminating plate for an automobile, which is capable of displaying a desired letter, pattern or the like with a uniform quantity of light over the whole display part and which is thin and excellent in durability. SOLUTION: This plate is provided with a light guide plate, a cover which has a light transmission hole of desired shape and is placed on the light guide plate, and a light reflective layer formed at the back surface of the light guide plate, wherein the light reflective layer covers an area where the light transmission hole is projected on the back surface of the light guide plate and is formed in an area a little wider than the projected area. |
