Method for reforming a reflection-type light diffuser

摘要

The invention provides a method for fabricating reflection-type light diffuser which is a substrate having a plurality of bumpy elements with reflective curved surfaces. Each of the plurality of bumpy elements having a first surface and a second surface, the first angle (alpha or theta) between the first surface and the substrate is different from the second angle (beta or phi) between the second surface and the substrate. A Multi-Exposure Shift Method along with specially designed masks are proposed for manufacturing the curved reflective elements in the present invention. The invention can also be used in a traditional TFT-LCD, with the diffusive film layer eliminated, as an element between the liquid crystal layer and the active matrix.