| 摘要 |
A brightness enhancement film (BEF) includes a substrate, a prism layer, a connection structure layer, and a micro lens layer. The prism layer is disposed on the substrate, the micro lens layer is disposed above the prism layer, and the connection structure layer is disposed between the prism layer and the micro lens layer. The prism layer includes a plurality of prisms. Each of the prisms includes a plurality of prism units. The micro lens layer includes a plurality of micro lens units. The connection structure layer includes a plurality of connection structure units. Each of the connection structure units connects the prism unit and the micro lens unit. A side surface of each of the connection structure units is a curved surface, and the curved surface extends from the micro lens unit to the prism unit. A backlight module including the brightness enhancement film is also provided.
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