摘要:
A method for patterning a light guide plate includes: (a) using laser beams to carve out a plurality of notches on a mold; and (b) manufacturing the light guide plate with the mold for forming a plurality of laser process patterns on an incident plane of the light guide plate.
摘要:
A keypad device includes a keypad with a plurality of keys in a defined order, and a light guide plate disposed under the keypad. The light guide plate includes a plurality of patterns formed by a method of printing on a surface thereof, and each pattern includes adhesive material and reflective material. The keypad device further includes at least one LED lamp disposed beside the light guide plate.