Lateral entrance type backlight module and display device
An edge-type backlight and module technology, applied in the field of edge-type backlight modules and display devices, can solve the problems of complex structure of display devices and the like
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[0032] Mode 1, the angle α and the angle β satisfy the formula β=(180°−α) / 2.
[0033] Such as figure 2 As shown, when the included angle α and included angle β in the micro-triangular prism structure satisfy this formula, the prism sheet 3 can make most of the finally emitted rays approach the normal o direction of its light-emitting surface 32, that is, the prism sheet 3 The viewing angle of the outgoing light of the edge-lit backlight module of the present application can be near the range perpendicular to the light exiting surface.
[0034] Mode 2, the angle α and the angle β satisfy the formula β>(180°−α) / 2.
[0035] Such as image 3 As shown, when the included angle α and included angle β in the micro-triangular prism structure satisfy this formula, the prism sheet 3 can make most of the finally emitted light tilt toward the side where the light bar 2 is located, that is, the prism sheet 3 The viewing angle of the outgoing light of the edge-lit backlight module of the...
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