Patent ID: 9220173
Filing Date: 2015-12-22
Classification: G02F,H05K,Y10T

Abstract:
1. A back frame of a flat panel display device, wherein: the back frame comprises at least two primary assembling pieces, the at least two primary assembling pieces both comprising a joint section, the at least two primary assembling pieces being joined to form a main frame structure of the back frame by having corresponding joint sections joined to and mating each other; and at least one of the primary assembling pieces comprises a reinforcement structure formed on the joint section thereof; wherein each of the primary assembling pieces has a cross-section of the joint section that has a line-folded configuration in order to form the reinforcement structure, the line-folded configuration comprising at least two joined line segments and forming a grating shape that comprises an array of cells comprising a plurality of rows of cells in a first direction and a plurality of columns of cells in a second direction that is substantially perpendicular to the first direction, the reinforcement structures of the two primary assembling pieces being stacked in a recess-projection paired form; wherein the at least two primary assembling pieces comprise a first primary assembling piece and a second primary assembling piece that are joined to each other, wherein the first primary assembling piece has an end having a surface forming at least two joint sections that are arranged to space from each other in a lengthwise direction of the first primary assembling piece, the first primary assembling piece using one of the joint sections thereof to join a corresponding end of the second primary assembling piece in order to form a main frame structure of the back frame having different sizes; wherein different joint sections will be used for the back frame having different sizes.