FIELD: physics.
SUBSTANCE: invention relates to a design for installation in a given position of a light guide plate, a backlight module and a display device. Structure for setting the lightguide plate into a predetermined position comprises a plurality of mounting elements (20) arranged between the first surface of the light guide plate (3) and rear plate (1). First surface adjoins the light guide plate (3) light incidence surface, and reflecting ability of surfaces of locating elements (20) near surface of light incidence is less than reflecting ability of surfaces of locating elements (20) located at distance from surface of light incidence.
EFFECT: invention provides reduced brightness drops on the periphery.
11 cl, 3 dwg
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