Quantum dot composite film and backlight unit using same
AssigneeLG Electronics Inc.
InventorsHyunkwon SHIN, Jinmok OH, Moongoo CHOI
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Abstract
Provided is a quantum dot composite film. The quantum dot composite film includes a first barrier film, a quantum dot phosphor film disposed on the first barrier film, and a second barrier film disposed on the quantum dot phosphor film, wherein the first barrier film or the second barrier film is a dichroic mirror barrier film. Therefore, since the quantum dot composite film bonded to various optical functional films is provided, the number of optical films requires for a typical thin-film-type lighting apparatus may be effectively reduced.
Claims30
A quantum dot composite film comprising:
- a first barrier film;
- a quantum dot phosphor film disposed on the first barrier film;
- and
- a second barrier film disposed on the quantum dot phosphor film,
- wherein the first barrier film or the second barrier film is a dichroic mirror barrier film.
A backlight unit comprising:
- a substrate;
- a reflective film disposed on the substrate;
- a plurality of semiconductor light-emitting elements disposed on the reflective film;
- a quantum dot composite film disposed on the semiconductor light-emitting elements;
- and
- an optical film disposed on the quantum dot composite film,
- wherein the quantum dot composite film comprises a first barrier film, a quantum dot phosphor film disposed on the first barrier film, and a second barrier film disposed on the quantum dot phosphor film, and
- wherein the first barrier film or the second barrier film is a dichroic mirror barrier film.
A backlight unit comprising:
- a substrate;
- a reflective film disposed on the substrate;
- a plurality of semiconductor light-emitting elements disposed on the reflective film;
- a patterned reflective film disposed on the semiconductor light-emitting elements;
- a first barrier film disposed on the patterned reflective film;
- a phosphor film disposed on the first barrier film;
- a second barrier film disposed on the phosphor film;
- and
- an optical film disposed on the second barrier film.
A quantum dot composite film comprising:
- a first barrier film;
- a quantum dot phosphor film disposed on the first barrier film and having a pattern structure;
- a second barrier film disposed on the quantum dot phosphor film;
- and
- protrusions filling gaps in the pattern structure and partially protruding between the first and the second barrier films,
- wherein the quantum dot phosphor film includes scatters and red quantum dots and green quantum dots.
Dependencies are inferred from the claim text.