US 11,870,015 B2
Light conversion devices incorporating quantum dots
Jie Song, Branford, CT (US); and Chen Chen, Branford, CT (US)
Assigned to Saphlux, Inc., Branford, CT (US)
Filed by Saphlux, Inc., Branford, CT (US)
Filed on Mar. 11, 2020, as Appl. No. 16/816,136.
Claims priority of provisional application 62/964,101, filed on Jan. 21, 2020.
Claims priority of provisional application 62/816,595, filed on Mar. 11, 2019.
Prior Publication US 2020/0295239 A1, Sep. 17, 2020
Int. Cl. H01L 33/50 (2010.01)
CPC H01L 33/504 (2013.01) [H01L 2933/0041 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A light conversion device, comprising:
a porous structure comprising one or more nanoporous materials, wherein the one or more nanoporous materials comprise a matrix structure and a plurality of pores in the matrix structure, wherein the matrix structure comprises at least one of glass, plastic, or polymer; and
a plurality of quantum dots placed in the plurality of pores of the porous structure, wherein the plurality of quantum dots comprises a first plurality of quantum dots configured to convert light of a first color into red light and a second plurality of quantum dots configured to convert the light of the first color into green light, wherein a first portion of the porous structure comprises a plurality of layers of the first plurality of quantum dots placed in a first plurality of pores in the nanoporous materials, wherein a second portion of the porous structure comprises a plurality of layers of the second plurality of quantum dots placed in a second plurality of pores in the nanoporous materials, and wherein, when the light conversion device is excited by the light of the first color, the first portion of the porous structure, the second portion of the porous structure, and a third portion of the porous structure produces red light, green light, and blue light, respectively.