Mechanical fastening and electical connector for a printed circuit board in the LED-backlight of a liquid crystal display

摘要

In the backlight of a liquid crystal display module (100), a printed circuit board (262), on which an LED source (26) is mounted, is mechanically fixed to the rear frame (50) of the module by a screw (60) passing through a hole (262a) in the board. The screw is countersunk into a recess (262b) in the PCB so that its head (61) does not protrude from the surface of the board. In addition, an electrical connector (70) may be arranged to connect one of the edges of the PCB (262) in such a way that the connector fits into another recess (262c) of the PCB, without any portion of it protruding above the surface of the board. As a result, the PCB can easily support a light guide member (24) directly.