Vehicle-mounted liquid crystal display screen backlight source structure with narrow frame and high heat dissipation

Abstract

The invention discloses a vehicle-mounted liquid crystal display screen backlight source structure with a narrow frame and high heat dissipation. The vehicle-mounted liquid crystal display screen backlight source structure comprises a middle rubber frame located on the upper layer, multiple diaphragms stacked below the middle rubber frame, a light guide plate stacked below the diaphragms, a reflector plate stacked below the light guide plate, a lower frame assembly located below the reflector plate and a light bar installed on the inner side of the lower bent edge of the lower frame assembly.The lower frame assembly and the middle rubber frame are buckled to form the vehicle-mounted liquid crystal display screen backlight source. The lower frame assembly comprises a lower aluminum frame with one long side bent and a side steel frame with three right-angled bent sides, and the lower aluminum frame is riveted with the side steel frame through a plurality of rivets to form the lower frame assembly with four enclosed sides. The thickness of the side wall of the side steel frame is 0.3 + / -0.03 mm. The scheme is reasonable in design and convenient to assemble and has the characteristicsof narrow frame and high heat dissipation.

Description

technical field [0001] The invention relates to the technical field of display backlight sources, in particular to a vehicle-mounted liquid crystal display backlight structure with a narrow frame and high heat dissipation. Background technique [0002] With the rapid development of the automotive electronics industry, vehicle-mounted LCD products continue to develop in the direction of "narrow bezel" and "high heat dissipation"; while the left, right, and upper frames of the vehicle-mounted LCD backlight limit the overall size of the display product. "Narrow border" is difficult to achieve. [0003] Such as figure 1 As shown, the existing vehicle-mounted liquid crystal display backlight mainly consists of a plastic frame 100, three diaphragms 200, a light guide plate 300, a reflector 400, and an aluminum frame 500 arranged under the plastic frame 100 in sequence, and is located under the aluminum frame 500. The light bar (not shown in the figure) and the like on the inner ...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the defect that the existing vehicle-mounted liquid crystal display backlight has a "narrow frame" that is difficult to realize, and at the same time solve the problem of poor heat dissipation

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