Patent ID: 11906891
Assignee: APPOTRONICS CORPORATION LIMITED
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. A processing method for the projection screen according to claim 1, comprising:
forming the microlens array, which comprises processing the microlens array on a transparent substrate by using an ion exchange process, a photosensitive glass process, a holographic process, an Fresnel zone lens process, or a photoresist-thermal fusion process;
forming an Fresnel reflective structure, which comprises forming the Fresnel microstructure, by an imprinting process or UV glue transferring process, on a side of the transparent substrate that is opposite to another side of the transparent substrate where the microlens array is formed, uniformly coating a preformed white reflective coating material on a surface of the Fresnel microstructure, then irradiating the white reflective coating material with light beams to cure a part of the white reflective coating material irradiated by the light beams, an irradiation direction of the light beams being orientated in an incident direction of light emitted from a projector, and removing another part of the white reflective coating material that is not irradiated by the light beams; and
forming the light-absorbing layers, which comprises adding a black organic dye and an inorganic pigment in a UV glue, coating a formed black absorbing material on the surface of the Fresnel microstructure where the another part of the white reflective coating material non-irradiated by the light beams is removed, and obtaining a main structure of the projection screen through light-curing.