CN210109369U

CN210109369U - Composite quantum dot film

Info

Publication number: CN210109369U
Application number: CN201920753791.3U
Authority: CN
Inventors: 邱晓华; 万冲
Original assignee: NANTONG TIANHONG LASER TECHNOLOGY Co Ltd
Current assignee: NANTONG VEEYEEI NEW MATERIAL TECHNOLOGY Co.,Ltd.
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-02-21
Anticipated expiration: 2029-05-24

Abstract

The utility model relates to a compound quantum dot membrane, it includes prism layer, PET layer, quantum dot layer and diffusion layer, and both sides design respectively have the PET layer about the quantum dot layer, and the design of PET layer top of upside has the prism layer, and the design of PET layer below of downside has the diffusion layer, prism layer, two PET layers, quantum dot layer and diffusion layer complex form integratively. The quantum dot packaging film has the advantages that the design is simple, the use is convenient, the barrier-free diaphragm is not arranged, the thickness is reduced, the cost is reduced, the refractive index of the film is improved by carrying out double-layer packaging design on the quantum dots, and particularly, the zinc sulfide is adopted, and meanwhile, the good compactness of a quantum dot layer is ensured; the top adopts the prism layer to increase the intensity of the front light, and the whole body has less barrier layers, thus the brightness is high and the brightness is high.

Description

Composite quantum dot film

Technical Field

The utility model relates to a quantum dot blooming field, concretely relates to compound quantum dot membrane.

Background

Quantum dot films and elements are used in displays and other optical constructions. The quantum dots need to be sealed against oxygen and water. Thus, these quantum dots have been dispersed in a polymer such as epoxy and placed between two barrier films. The barrier film carries out a water-blocking and oxygen-blocking layer to protect the quantum dots, but the quantum dot film with the structure has low brightness, low light conversion efficiency and poor optical effect.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a compound quantum dot membrane, unimpeded diaphragm, thickness step-down, cost reduction.

The technical scheme of the utility model:

compound quantum dot membrane, it includes prism layer, PET layer, quantum dot layer and diffusion layer, and both sides design respectively has the PET layer about the quantum dot layer, and the design of the PET layer top of upside has the prism layer, and the design of PET layer below of downside has the diffusion layer, prism layer, two PET layers, quantum dot layer and diffusion layer compound and form integratively.

The prism layer is a plurality of triangular wave type corrugated prism layers or a plurality of pyramid type prism layers.

The quantum dot layer comprises quantum dot bodies and glue, the quantum dot bodies are two layers of shells wrapped outside the quantum dots, the inner side shells are cadmium sulfide layers, the outer side shells are zinc sulfide layers, the zinc sulfide layers are wrapped outside the cadmium sulfide layers, the cadmium sulfide layers are wrapped outside the quantum dots, and the quantum dot bodies are uniformly distributed in the glue to form the quantum dot layers.

The quantum dot layer comprises quantum dot bodies and glue, wherein the quantum dot bodies are formed by wrapping a shell on the outer sides of quantum dots, and a plurality of quantum dot bodies are uniformly distributed in the glue to form the quantum dot layer; one shell is a mixed layer of cadmium sulfide and zinc sulfide or a cadmium sulfide layer or a zinc sulfide layer.

The quantum dot layer comprises a quantum dot body and glue, wherein the quantum dot body is formed by wrapping a layer of shell on the outer side of a quantum dot, a plurality of quantum dots wrapped by the layer of shell form a group, and the outer side of each group is wrapped in the second layer of shell together; the quantum dot bodies in the second shell are uniformly distributed in the glue to form a quantum dot layer; one layer of shell is a mixed layer of cadmium sulfide and zinc sulfide or a cadmium sulfide layer or a zinc sulfide layer; the second shell is a mixed layer of cadmium sulfide and zinc sulfide or a cadmium sulfide layer or a zinc sulfide layer.

The glue is methyl methacrylate glue.

The diffusion layer is a coating layer, namely a layer of epoxy thermosetting coating or epoxy light curing coating or thermosetting coating or acrylic material.

The utility model has the advantages of simple design, convenient use, no barrier membrane, low thickness and low cost, improves the refractive index of the membrane by double-layer packaging design of the quantum dots, particularly adopts zinc sulfide, and ensures good compactness of the quantum dot layer; the top adopts the prism layer to increase the intensity of the front light, and the whole body has less barrier layers, thus the brightness is high and the brightness is high.

Drawings

Fig. 1 is a schematic diagram of the present invention.

Fig. 2 is a first schematic diagram of a quantum dot layer according to the present invention.

Fig. 3 is a second schematic diagram of the quantum dot layer of the present invention.

Fig. 4 is a third schematic diagram of a quantum dot layer according to the present invention.

Detailed Description

Referring to the attached drawings 1-4, the composite quantum dot film comprises a prism layer 1, a PET layer 2, a quantum dot layer 3 and a diffusion layer 4, wherein the PET layer 2 is respectively designed on the upper side and the lower side of the quantum dot layer 3, the prism layer 1 is designed above the upper side PET layer 2, the diffusion layer 4 is designed below the lower side PET layer 2, and the prism layer 1, the two PET layers 2, the quantum dot layer 3 and the diffusion layer 4 are compounded into a whole.

The prism layer 1 is a plurality of triangular wave-shaped corrugated prism layers or a plurality of pyramid prism layers.

In fig. 2, the quantum dot layer 3 includes a quantum dot body 31 and glue 32, the quantum dot body 31 is formed by wrapping the outer side of a quantum dot with two shells, the inner shell is a cadmium sulfide layer 33, the outer shell is a zinc sulfide layer 34, the zinc sulfide layer 34 is wrapped on the outer side of the cadmium sulfide layer 33, the cadmium sulfide layer 33 is wrapped on the outer side of the quantum dot, and a plurality of quantum dot bodies 31 are uniformly distributed in the glue 32 to form the quantum dot layer 3.

Fig. 3, the quantum dot layer 3 includes a quantum dot body 31 and glue 32, the quantum dot body 31 is formed by wrapping a shell 35 outside the quantum dot, and a plurality of quantum dot bodies are uniformly distributed in the glue to form a quantum dot layer; the one-layer shell 35 is a mixed layer of cadmium sulfide and zinc sulfide or a cadmium sulfide layer or a zinc sulfide layer.

Fig. 4, the quantum dot layer 3 includes a quantum dot body 31 and glue 32, the quantum dot body 31 is formed by wrapping a layer of shell 35 on the outer side of the quantum dot, a plurality of quantum dot bodies wrapping a layer of shell form a group, and each group of outer sides are wrapped in a second layer of shell 36 together; the quantum dot bodies in the second shell are uniformly distributed in the glue to form a quantum dot layer; the first shell 35 is a mixed layer of cadmium sulfide and zinc sulfide or a cadmium sulfide layer or a zinc sulfide layer; the second shell 36 is a mixed layer of cadmium sulfide and zinc sulfide or a cadmium sulfide layer or a zinc sulfide layer. The number of groups may be tens, hundreds, or other groups of amounts.

The glue 32 is methyl methacrylate glue. Also an acrylic glue.

The prism layer of the utility model increases the light intensity of the front side, and the application discloses two specific prism layer structures, but other prism layers also belong to the protection scope of the application; the PET layer of quantum dot layer both sides is transparent optical plastic, and quantum dot layer's main design solves the technical problem that the quantum dot must the barrier layer, the utility model discloses in to the quantum dot include both sides, mainly be in order to prevent quantum dot contact water or oxygen, zinc sulfide layer design has improved the refracting index again and has improved the compactness simultaneously; therefore, the whole film reduces two barrier layers, the structure is obviously thinned, and the cost is reduced.

Claims

1. The composite quantum dot film is characterized by comprising a prism layer, a PET layer, a quantum dot layer and a diffusion layer, wherein the PET layer is respectively designed on the upper side and the lower side of the quantum dot layer, the prism layer is designed above the PET layer on the upper side, the diffusion layer is designed below the PET layer on the lower side, and the prism layer, the two PET layers, the quantum dot layer and the diffusion layer are compounded into a whole.

2. A composite quantum dot film according to claim 1, wherein the prism layer is a plurality of triangular corrugated prism layers or a plurality of pyramidal prism layers.

3. The composite quantum dot film of claim 1, wherein the quantum dot layer comprises a quantum dot body and glue, the quantum dot body is formed by wrapping two layers of shells on the outer side of the quantum dot, the inner shell is a cadmium sulfide layer, the outer shell is a zinc sulfide layer, the zinc sulfide layer is wrapped on the outer side of the cadmium sulfide layer, the cadmium sulfide layer is wrapped on the outer side of the quantum dot, and a plurality of quantum dot bodies are uniformly distributed in the glue to form the quantum dot layer.

4. The composite quantum dot film of claim 3, wherein the glue is a methyl methacrylate glue.

5. A composite quantum dot film according to claim 1, wherein the diffusion layer is a coating layer, i.e. a layer of epoxy thermosetting coating or epoxy photo-curing coating or thermosetting coating or acrylic material.