Patent ID: 8038822

Claim:
A method for making a display screen, comprising: applying light-emitting materials, that absorb excitation light at an excitation wavelength to emit visible light at wavelengths different from the excitation wavelength, into parallel grooves of a mold so that two adjacent grooves are applied with two different light-emitting materials that emit at two different wavelengths; controlling a volume of each light-emitting material in each respective groove during the process of applying the light-emitting materials into the mold to partially fill each groove; applying a liquid material in each groove on top of a respective light-emitting material to fill the groove; transforming the liquid material into a transparent solid material that attaches to each light-emitting material in each groove; placing a screen layer on the mold to be in contact with and to engage to the transparent solid material; lifting the screen layer to lift a stripe formed by the transparent solid material and each light-emitting material out of the mold to form a light-emitting layer of parallel light-emitting stripes; and applying one or more additional screen layers to the light-emitting layer to form a display screen.