Light guide plate and manufacturing method thereof, backlight module, display device

Abstract

A light guide plate, a method of fabricating a light guide plate, a backlight module and a display device are disclosed. The light guide plate includes a light guide layer and a grating layer. The light guide layer includes a light incident surface, a light exit surface, and a bottom surface opposite to the light exit surface. The grating layer is disposed on a side of the light guide layer with the light exit surface being on the side and including a plurality of grating strips. The bottom surface is provided with a plurality of optical dots. The plurality of optical dots are configured to deflect light rays from the light incident surface toward the grating strips. The plurality of grating strips are configured to deflect light rays emitted from the light exit surface toward a normal line of the light exit surface.

Description

technical field

[0001] The invention relates to the field of display technology, in particular to a light guide plate and a manufacturing method thereof, a backlight module and a display device. Background technique

[0002] While the display device brings convenience to work and life, the importance of user's business secrets and / or personal privacy protection is increasing day by day, and the demand for screen anti-peeping increases accordingly.

[0003] Existing anti-peeping products, such as the anti-peeping film of 3M Company in the United States, will increase the thickness of the product and reduce the brightness of the screen after being attached, and the anti-peeping effect is average, and the cost is relatively high. Contents of the invention

[0004] Embodiments of the present invention provide a light guide plate and its manufacturing method, a backlight module, and a display device, which can realize the anti-peeping function without using an anti-peeping film...

Images