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

Claim 12:
13. 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;
forming 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 a surface of the Fresnel microstructure, and removing a part of the black absorbing material irradiated by light beams and remaining another part of the black absorbing material that is not irradiated by the light beams, to form the light-absorbing layers; and
filling a reflective coating material between every two adjacent light-absorbing layers of the light-absorbing layers to obtain a main structure of the projection screen.