Backlight module set and liquid crystal module set

Abstract

The invention provides a backlight module set and a liquid crystal module set. The backlight module set comprises a backboard, a light source, a light guide component, an optical diaphragm and a rubber frame; the backboard comprises a bottom plate and side plates, wherein the bottom plate and the side plates form a containing cavity; the light source is arranged in the containing cavity; the lightguide component is arranged in the containing cavity; the light outgoing surface of the light source is corresponding to the light incident surface of the light guide component; the optical diaphragmis arranged in the containing cavity and is located on the light outgoing surface of the light guide component; and the rubber frame is arranged on the backboard; at least one side plate is providedwith a recessed portion at a position corresponding to the optical diaphragm; and the recessed portion faces the optical diaphragm. According to the backlight module set, the recessed portion is arranged at the position corresponding to the optical diaphragm, on the side face of the backboard; when the optical diaphragm is heated and expands, the optical diaphragm will not being blocked by the recessed portion, but extend in the direction of the recessed portion, and therefore, wrinkles will not be generated, and optical defects can be avoided.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a liquid crystal module. Background technique [0002] In the existing vehicle-mounted backlight modules, cast aluminum parts are usually used as the bottom plate. Due to the limitation of the frame size of the module, the gap between the optical film and the side wall of the cast aluminum part is often small. Due to the expansion of the optical diaphragm under high temperature conditions, when there is no sufficient gap between the edge of the diaphragm and the side wall of the cast aluminum part, the diaphragm will wrinkle due to the resistance to expansion, which will cause optical defects. [0003] Therefore, the existing vehicle-mounted backlight module has the technical problem that the expansion of the optical film is hindered, and needs to be improved. Contents of the invention [0004] The invention provides a backlight module and a liquid crys...

AI Technical Summary

Problems solved by technology

Due to the expansion of the optical diaphragm under high temperature conditions, when there is not enough clearance between the edge of the diaphragm and the side wall of the cast aluminum part, the diaphragm will be wrinkled due to expansion resistance, which will cause optical defects

[0003] Therefore, the existing vehicle-mounted backlight module has the technical problem that the expansion of the optical film is hindered, and needs to be improved.

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