Light emitting sheet and road sign using same

A light emitting sheet excellent in light guiding performance, the light emitting sheet comprising:

• a base film (110);
• and
• a patterned light guide on the base film, wherein a pattern cell (130) is repeatedly formed in the patterned light guide,
• wherein,
• the pattern cell has a hexagonal shape comprising six vertices and six sides,
• the pattern cell comprises:
• a central pattern (131) having a circular shape and located at a center of the pattern cell;
• six isosceles triangular-shaped patterns (132) arranged around the central pattern, wherein a symmetry axis of each of the six isosceles triangular-shaped patterns is aligned perpendicular to a corresponding side of the six sides of the pattern cell and crosses the center of the pattern cell, respectively, wherein each corner of the isosceles triangular-shaped patterns has a rounded shape and/or a pointed shape, and all of the six isosceles triangular-shaped patterns have the same size, and
• six corner patterns (133) located at the vertices of the hexagonal shape, wherein each of the six corner patterns is identical in shape and size to one another, and
• the base film comprises at least one of polypropylene or polyethylene terephthalate.