| abstract |
The invention provides a functional material, a preparation method thereof, light guide printing ink and a light guide plate, belonging to the technical field of display and being capable of solving the problem of pollution of the existing liquid crystal display device. The functional material provided by the invention comprises inorganic powder provided with a modified layer on the surface, wherein the inorganic powder comprises any one or more selected from aluminum oxide, magnesium oxide, zinc oxide, zirconium oxide, silicon dioxide, titanium dioxide, boron oxide, ferric oxide, calcium oxide, potassium oxide, sodium oxide and lithium oxide; and the modified layer is generated by reaction between dianhydride and diamine. The light guide printing ink provided by the invention contains the functional material. The light guide plate provided by the invention comprises a scattering pattern formed by curing the light guide printing ink. |