Light guide plate with multi-directional structures

Abstract

A light guide plate with multi-directional structures includes a main body, a plurality of first microstructures and a plurality of second microstructures. The main body includes a light-incident surface, a light-emitting surface and a reflecting surface. The light-incident surface connects the light-emitting surface and the reflecting surface. The first microstructures are disposed on the light-emitting surface or the reflecting surface and arranged along a first extending direction. The second microstructures are disposed on the light-emitting surface or the reflecting surface and arranged along a second extending direction. The second microstructures and the first microstructures are disposed on the same plane and intersect with each other. Each of the second microstructures is a single stripe pattern, and has a width which becomes gradually smaller from one end of the second microstructure near the light-incident surface to the other end of the second microstructure away from the light-incident surface.

What is claimed is: 
     
         1 . A light guide plate, comprising:
 a main body comprising a light-incident surface and an optical surface connected to the light-incident surface;   a plurality of striped structures disposed on the optical surface; and   a plurality of light-adjusting structures disposed between the striped structures, wherein each of the light-adjusting structures comprises a first light active surface and a second light active surface connected to the first light active surface;   wherein the first light active surface faces towards the light-incident surface, and the second light active surface faces towards a side of the main body opposite to the light-incident surface, and the first light active surface and the second light active surface are inclined relative to opposite sides and are formed in non-symmetrical shape;   wherein a first angle is formed between the first light active surface and the optical surface, and a second angle is formed between the second light active surface and the optical surface, and each of the first angle and the second angle is an acute angle.   
     
     
         2 . The light guide plate of  claim 1 , wherein side edges of the first light active surface and the second light active surface of the each of the light-adjusting structures are connected to surfaces of the adjacent striped structures. 
     
     
         3 . The light guide plate of  claim 1 , wherein an extending direction of each of the striped structures is vertical to an extending direction of the light-incident surface. 
     
     
         4 . The light guide plate of  claim 1 , wherein
 the main body has an opposite light-incident surface which is opposite to the light-incident surface; and   one end of each of the striped structures is connected to the light-incident surface, and the other end of each of the striped structures is connected to the opposite light-incident surface.   
     
     
         5 . The light guide plate of  claim 1 , wherein the first angle is greater than the second angle. 
     
     
         6 . The light guide plate of  claim 1 , wherein light-adjusting structures are continuously or non-continuously arranged along the striped structures. 
     
     
         7 . The light guide plate of  claim 1 , wherein each of the striped structures is a convex structure or a concave structure. 
     
     
         8 . The light guide plate of  claim 1 , wherein the optical surface is a light-emitting surface or a reflecting surface. 
     
     
         9 . The light guide plate of  claim 1 , wherein light guide plate, the striped structures are continuously arranged or non-continuously arranged. 
     
     
         10 . The light guide plate of  claim 1 , wherein a width of each of the striped structures becomes gradually greater from one end of each of the striped structures near the light-incident surface to the other end of each of the striped structures away from the light-incident surface. 
     
     
         11 . A backlight module, comprising:
 a light guide plate as claimed in  claim 1 ; and   a light source disposed adjacent to the light-incident surface of the light guide plate;   wherein the light guide plate is collocated with at least one film;   wherein the first microstructures and the second microstructures are disposed on the same plane of the light guide plate and are on a separate plane than of the at least one film.   
     
     
         12 . A light guide plate, comprising:
 a main body comprising a light-incident surface and two optical surfaces which are connected to the light-incident surface;   a plurality of striped structures disposed one of the optical surfaces; and   a plurality of light-adjusting structures disposed between the striped structures and are arranged along a first direction which is vertical to the light-incident surface, wherein each of the light-adjusting structures has a first light active surface and a second light active surface connected to the first light active surface;   wherein the first light active surface and the second light active surface of each of the light-adjusting structures are arranged along the first direction and are connected to each other to form a connecting line, each of the first light active surfaces and the second light active surfaces has a side edge which is not parallel to the connecting line, and the side edges of the first light active surface and the second light active surface of the each of the light-adjusting structures are connected to surfaces of the adjacent striped structures.   
     
     
         13 . The light guide plate of  claim 12 , the light guide plate further comprises a plurality of optical structures disposed on the other one of the optical surface, wherein the optical structures are arranged along a second direction which is parallel to the light-incident surface, and an arrangement direction of the optical structures are vertical to the arrangement direction of the light-adjusting structures. 
     
     
         14 . The light guide plate of  claim 13 , wherein each of the optical structures has a first connecting surface and a second connecting surface connected to the first connecting surface, the first connecting surface and the second connecting surface of each of the optical structures are arranged along the second direction and are connected to each other to form a ridgeline wherein the ridgeline of each of the optical structures is vertical to the connecting line of each of the light-adjusting structures. 
     
     
         15 . The light guide plate of  claim 12 , wherein an extending direction of each of the striped structures is vertical to an extending direction of the light-incident surface. 
     
     
         16 . The light guide plate of  claim 12 , wherein
 the main body has an opposite light-incident surface which is opposite to the light-incident surface; and   one end of each of the striped structures is connected to the light-incident surface, and the other end of each of the striped structures is connected to the opposite light-incident surface.   
     
     
         17 . The light guide plate of  claim 12 , wherein light-adjusting structures are continuously or non-continuously arranged along the striped structures. 
     
     
         18 . The light guide plate of  claim 12 , wherein each of the striped structures is a convex structure or a concave structure. 
     
     
         19 . The light guide plate of  claim 12 , wherein the optical surface is a light-emitting surface or a reflecting surface. 
     
     
         20 . The light guide plate of  claim 12 , wherein light guide plate, the striped structures are continuously arranged or non-continuously arranged. 
     
     
         21 . The light guide plate of  claim 12 , wherein a width of each of the striped structures becomes gradually greater from one end of each of the striped structures near the light-incident surface to the other end of each of the striped structures away from the light-incident surface. 
     
     
         22 . A backlight module, comprising:
 a light guide plate as claimed in  claim 12 ; and   a light source disposed adjacent to the light-incident surface of the light guide plate;   wherein the light guide plate is collocated with at least one film;   wherein the first microstructures and the second microstructures are disposed on the same plane of the light guide plate and are on a separate plane than of the at least one film.