| 摘要 |
PURPOSE: An LED flat lighting device is provided to improve brightness efficiency by adhering a plurality of LEDs to the side of a light guide plate. CONSTITUTION: A border frame has an inner wall and a supporting protrusion. A light guide plate unit(20) has a light guide plate, a reflection plate, and a diffusion plate. The reflection plate is arranged on the rear of the light guide plate. The diffusion plate is arranged on the front of the light guide plate. An LED module(30) has a plurality of LEDs and a PCB(Printed Circuit Board). A heatproof bar(40) is closely adhered to the PCB. A spring(50) closely adheres the plurality of LEDs to the PCB. A separation preventing unit presses the edge of the light guide plate unit. |
