BACKLIGHT SYSTEM AND DISPLAY DEVICE

摘要

The present invention discloses a backlight system and a display device. In the backlight system, corresponding at least one beam expanding plate is arranged at the emergent side of a backlight module, and include a horizontal beam expanding plate and/or a vertical beam expanding plate, wherein each beam expanding plate includes an upper beam expanding sub-plate and a lower beam expanding sub-plate having the same periodic curved surface structures, the upper beam expanding sub-plate and the lower beam expanding sub-plate are arranged in parallel in such a manner that periodic curved surface structures are back-to-back against each other, and the relative position of the upper beam expanding sub-plate and the lower beam expanding sub-plate in the horizontal direction can be adjusted parallelly within a set range.

主权项

1. A backlight system, comprising a backlight module and at least one beam expanding plate located at an emergent side of the backlight module, the at least one beam expanding plate comprising a horizontal beam expanding plate and/or a vertical beam expanding plate,
wherein each beam expanding plate comprises an upper beam expanding sub-plate and a lower beam expanding sub-plate each having the same periodic curved surface structure, the upper beam expanding sub-plate and the lower beam expanding sub-plate of each beam expanding plate are arranged in parallel in such a manner that the periodic curved surface structures are back-to-back against each other, and a relative position of the upper beam expanding sub-plate and the lower beam expanding sub-plate in a horizontal direction is capable of being adjusted parallelly within a set range; curved surface textures of the periodic curved surface structures of the upper beam expanding sub-plate and the lower beam expanding sub-plate of the horizontal beam expanding plate extend along a horizontal axis direction, and curved surface textures of the periodic curved surface structures of the upper beam expanding sub-plate and the lower beam expanding sub-plate of the vertical beam expanding plate extend along a longitudinal axis direction.