US 12,264,817 B1
Manufacturing method of optical device, optical device with quantum dots, and illumination apparatus with quantum dots
Jung-Hua Chang, Hsinchu (TW); Ching-Liang Yi, Hsinchu (TW); and Chen-Yang Huang, Hsinchu (TW)
Assigned to QDLUX INC., Hsinchu (TW)
Filed by QDLUX INC., Hsinchu (TW)
Filed on Jan. 16, 2024, as Appl. No. 18/414,010.
Int. Cl. F21V 9/30 (2018.01); F21Y 115/10 (2016.01)
CPC F21V 9/30 (2018.02) [F21Y 2115/10 (2016.08)] 12 Claims
OG exemplary drawing
 
1. A manufacturing method of an optical device, comprising:
providing a lower transparent substrate; wherein the lower transparent substrate includes an upper surface;
providing a glue-material enclosure wall, wherein the glue-material enclosure wall is disposed on the upper surface to surround an accommodating region and is heat cured to be shaped;
providing a quantum dot film element disposed in the accommodating region after the glue-material enclosure wall disposed on the upper surface; wherein the glue-material enclosure wall surrounds the quantum dot film element;
providing an upper transparent substrate covering the quantum dot film element and the glue-material enclosure wall, such that the quantum dot film element and the glue-material enclosure wall are sandwiched between the lower transparent substrate and the upper transparent substrate, wherein the glue-material enclosure wall is thinned under a pressure from the upper transparent substrate covering the quantum dot film element and the glue-material enclosure wall cause a thickness of the glue-material enclosure wall same as a thickness of the quantum dot film element, and the thickness of the quantum dot film element ranges from 20 μm to 200 μm;
heat curing the glue-material enclosure wall again after the upper transparent substrate covers the quantum dot film element and the glue-material enclosure wall; and
cutting the lower transparent substrate and the upper transparent substrate to form a lower protective film and an upper protective film corresponding to the quantum dot film element, so as to obtain the optical device comprising the lower protective film, the upper protective film, the quantum dot film element, and the glue-material enclosure wall;
wherein, the optical device is contained in a protective coating.