Patent ID: 8970802
Filing Date: 2015-03-03
Classification: G02F,G09F

Abstract:
1. A mainframe structure used for backlight module configured with a plastic frame and a backboard, wherein: the backboard includes an integral bottom for supporting optical films of the backlight module, and a first sidewall; wherein the plastic frame is integrally formed with a carrying portion, a second sidewall, and a supporting portion, wherein the carrying portion is used for positioning optical films, and also supporting the liquid crystal display panel, wherein a receiving slot is defined between the second sidewall and the supporting main portion such that the first sidewall is received therein, wherein the supporting portion includes an integrally formed main portion interconnected to the carrying portion and a positioning block which prevent the plastic frame from transversal movement with respect to the backboard together with the bottom of the backboard; wherein the bottom of the backboard is defined with opening in which the positioning block is received therein, wherein the supporting main portion abuts against the bottom of the mainboard so as to limit a distance of the carrying portion to the bottom of the mainboard; wherein the opening is embodied as a circular hole or a polygonal hole, wherein the corresponding positioning block is a cylindrical column or polygonal column; and wherein the opening passing through the bottom of the mainboard.