Back frame, method for manufacturing back frame, and backlight system

摘要

The present invention provides a back frame of flat panel display device. The back frame includes at least two primary assembling pieces and the at least two primary assembling pieces are connected through joining; the at least two primary assembling pieces having lengths that are adjustable in order to form a main frame structures of the back frame that is of various sizes, in which lengths of two parallel sides of the main frame structure are both subjected to adjustment. The present invention also provides a method for manufacturing a back frame of flat panel display device and a backlight system. Through above arrangement, the back frame mold is made simple in structure and the expenditure of the back frame mold is reduced, and the material used for back frame is saved so as to lower down the manufacturing cost of flat panel display device.

主权项

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 being connected through joining; the at least two primary assembling pieces have lengths that are adjustable in order to form a main frame structure of the back frame that is of various sizes, in which lengths of two parallel sides of the main frame structure are both subjected to adjustment; the length-adjustable primary assembling pieces comprises a first sub-assembling piece and a second sub-assembling piece that are joined at ends; the back frame comprises a first fastener and a second fastener, the first fastener and the second fastener being set at different locations to join the first sub-assembling piece and the second sub-assembling piece; the first sub-assembling piece has an end forming a first slit extending in a lengthwise direction of the first sub-assembling piece and the second sub-assembling piece has an end forming a second slit extending in a lengthwise direction of the second sub-assembling piece; the first fastener extends through the first slit and the second slit to join the first sub-assembling piece and the second sub-assembling piece and the second fastener extends through the first slit and the second slit to join the first sub-assembling piece and the second sub-assembling piece; the first slit has two side walls between which a distance is periodically variable in a direction of the first slit to form a plurality of alternating wide spaces and narrow spaces, the wide spaces mating a size of the first fastener and the second fastener, the narrow spaces being smaller than the size of the first fastener and the second fastener; and the second slit has two side walls between which a distance is periodically variable in a direction of the second slit to form a plurality of alternating wide spaces and narrow spaces, the wide spaces mating the size of the first fastener and the second fastener, the narrow spaces being smaller than the size of the first fastener and the second fastener.