Abstract: A liquid crystal display (LCD) including a planar light source module, a main frame, an LCD panel and a front frame is provided. The planar light source module includes a positioning module and a flat light source disposed in thereof. The main frame is assembled with the planar light source module, the LCD panel is disposed in the main frame, and the front frame is assembled with the main frame for fixing the LCD panel. Since the planar light source module is able to be independently disassembled from the main frame, therefore, the LCD has better maintenance and assembly efficiency. Besides, an assembly method of the LCD is provided as well.

Abstract: A backlight module having a light source module and an optical film module is provided. The light source module includes a first frame module and a light source. The light source is disposed in the first frame module. The optical film module includes a second frame module and a plurality of optical films. The optical films are disposed in the second frame module. The optical film module is detachably disposed on the light source module.

Abstract: A backlight module including a frame, a light guide, at least one reflective cover and at least one light source is provided. The frame includes an upper frame having at least one first fastener thereon and a lower frame having at least one second fastener thereon. The light guide is disposed inside the frame and has at least one light incident surface and a light emitting surface. The reflective cover is placed inside the frame at one side of the frame. The reflective cover has at least one third fastener and at least one fourth fastener thereon, wherein the third fastener and the first fastener of the upper frame are fastened together while the fourth fastener and the second fastener of the lower frame are fastened together. The light source is disposed between the light incident surface of the light guide and the reflective cover.

Abstract: An engaging structure of a backlight module is disclosed. The engaging structure utilizes protruding portions, which extend from the bottom edge of a side wall of a mold frame, insert into corresponding holes on a chassis, and so fasten and position the mold frame on the chassis. The engaging structure prevents that the problems of light leak are caused by the backlight module and scratches on a driving IC on a side of a backlight.