Preparation method of curved surface backlight module, curved surface backlight module and display device

Abstract

The embodiment of the invention discloses a preparation method of a curved surface backlight module, a curved surface backlight module and a display device. Including: providing an initial back plate, the initial back plate includes opposite first and second faces; the first face includes a plurality of first flat areas and a plurality of first convex curved areas; the first convex curved areas are located on opposite sides Adjacent to the first flat area; the second surface includes a plurality of second flat areas and a plurality of first concave bending areas; an initial lamp board is provided, and a plurality of light sources are welded on the front side of the initial lamp board through pads; the initial The back of the light panel is laid on the first side of the original backplane; the back of the initial light panel faces away from the front; the light source is located in the first flat area; the initial backplane and the initial light panel are bent to form a curved backlight module; the curved backlight module The direction of the bending axis is parallel to the bending axis of the first convex bending zone and the bending axis of the first concave bending zone. The technical solution provided by the embodiment of the present invention can prevent the light source of the curved surface backlight module from dead light or short circuit.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of curved surface display, and in particular to a method for preparing a curved surface backlight module, a curved surface backlight module, and a display device. Background technique [0002] A curved display device refers to a display device with a certain curvature of the screen, which has the advantages of better contrast and wider viewing angles, and has broad market prospects in the fields of automobiles, wearables, televisions, and mobile communications. [0003] For the curved liquid crystal display device, not only the liquid crystal display panel has a certain curvature, but also the backlight module and the liquid crystal display panel will be adaptively curved after being assembled. In the prior art, a backlight module usually includes a backplane, a lamp board, and a light source. Generally, the light source is first welded to the lamp board through a pad, and then the ...

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Problems solved by technology

[0004] However, when the light board is in a naturally flattened state, the horizontal distance between the pads of two adjacent light sources can be recorded as S1; when the light board is bent with the back plate, the horizontal distance between the pads of two adjacent light sources It can be recorded as S2. Obviously, due to the bending of the light board, S2 will be smaller than S1, that is, the distance between the solder pads of two adjacent light sources will decrease after the light board is bent with the back plate, resulting in the distance between the adjacent two light sources. increased risk of short circuits between

In addition, when the lamp board is bent with the back board, the welding pads of the light source are prone to breakage or false welding due to the extrusion of the lamp board, which will cause the backlight module to die.

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