Optical brightening structure and manufacturing method thereof

Abstract

The invention discloses an optical brightening structure and a manufacturing method thereof, relates to the field of display technology, and is used for simplifying the manufacturing process of the optical brightening structure. The optical brightening structure includes a light-transmitting carrier and a buffer layer formed on one side of the light-transmitting carrier; the buffer layer is provided with a plurality of microstructures for converging light, and the surface energy of each microstructure is greater than that of the buffer layer . The manufacturing method of the optical brightness enhancement structure includes: providing a light-transmitting carrier, forming a buffer layer on one side of the light-transmitting carrier; forming a plurality of microstructures for converging light on the surface of the buffer layer away from the light-transmitting carrier; The surface energy is greater than the surface energy of the buffer layer. The optical brightening structure provided by the invention and its manufacturing method are used for surface-emitting lighting devices or display devices.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an optical brightness enhancement structure and a manufacturing method thereof. Background technique [0002] Brightness Enhancement Film (BEF for short), also called brightness enhancement film or prism sheet, is widely used in backlight modules because it can gather light emitted by a light source and improve light output efficiency of the light source. [0003] At present, the traditional brightness enhancement film is composed of a plurality of identical elongated light-concentrating prisms regularly arranged in a certain direction, and the cross-section of each light-concentrating prism is an isosceles triangle. In the process of making this traditional brightness-enhancing film, it is necessary to etch the corresponding light-concentrating prisms on the substrate one by one according to the set prism angle and prism length to form the brightness-enhancing film; or, accordi...

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Problems solved by technology

[0004] However, no matter which of the above-mentioned methods is used to make the brightness enhancement film, due to the high requirements for the shape of the condenser prism in the brightness enhancement film, the etching or processing of the condenser prism needs to have high precision, which inevitably requires multiple inspections and corrections The etching angle or processing angle of the condensing prisms, as well as multiple adjustments to align the orientation of each condensing prism, complicate the production process of the brightness enhancement film.

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