Patent ID: 9551878
Date: 2017-01-24
CPC Classifications: G02B

Claim:
1. A patterned retarder film for being attached to a display panel, wherein the display panel comprises at least two of the first sub-pixels, at least two of the second sub-pixels and at least two of the third sub-pixels, and the at least two of the first sub-pixels, at least two of the second sub-pixels and at least two of the third sub-pixels are arranged along a longitudinal direction, and the patterned retarder film comprises: a patterned retarder film body, comprising at least two phase retarders, wherein the at least two phase retarders are arranged along the longitudinal direction, and each of the phase retarders include top saw portions and bottom saw portions, and the top saw portions and the bottom saw portions are disposed at two opposite sides of each of the phase retarders, and a shape of the top saw portions corresponds to a shape of the bottom saw portions; wherein the top saw portions and the bottom saw portions include a plurality of horizontal surfaces where adjacent horizontal surfaces have different height and at least two non-adjacent horizontal surfaces have the same height; wherein the horizontal surfaces of the top saw portions form a wave shape with at least one peak and at least one trough; the horizontal surfaces of the bottom saw portions form a wave shape with at least one peak and at least one trough; wherein the top saw portions and the bottom saw portions are adjacent to at least one of the first sub-pixels, at least one of the second sub-pixels and at least one of the third sub-pixels; wherein adjacent two of the phase retarders are a positive quarter phase retarder and a negative quarter phase retarder; wherein each adjacent two of the phase retarders are connected to each other without crisscrossing each other.