CN109739041A - Backlight module - Google Patents
Backlight module Download PDFInfo
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- CN109739041A CN109739041A CN201910039745.1A CN201910039745A CN109739041A CN 109739041 A CN109739041 A CN 109739041A CN 201910039745 A CN201910039745 A CN 201910039745A CN 109739041 A CN109739041 A CN 109739041A
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- glue
- quantum dot
- blocks water
- particle
- aerosil particles
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Abstract
The present invention relates to a kind of backlight modules, it includes light source, light guide plate and prismatic lens, it further includes quantum dot layer, and the quantum dot layer adhesion is arranged between light guide plate and prismatic lens；The quantum dot layer includes quantum dot particle, quantum dot particle abbreviation quantum dot in the aerosil particles including including block water glue, aerosil particles and diffusion particle；The aerosil particles and diffusion particle are dispersed in the glue that blocks water of quantum dot layer.Design is reasonable, structure is simple, and one layer of quantum dot layer of adhesion substitutes original quantum dot film directly between the light guide plate of backlight module and prismatic lens, while meeting the performance requirement of backlight module, the high temperature and humidity resistance and antioxygenic property of quantum dot layer, reduce costs.
Description
Technical field
The present invention relates to optical technical fields, and in particular to a kind of backlight module.
Background technique
Nowadays the LED used on mobile electronic device is one group of light emitting diode using equipment back side as light source, or
Person uses blue-ray LED and rare earth phosphor to match to achieve the effect that show different color.The colour gamut of traditional LED backlight liquid crystal
Only 70%NTSC, color representation power are general.Quantum dot membrane technology is using quantum dot in traditional components instead of fluorescent powder,
Quantum dot of many trillion under film protection will replace the backlight module of LED itself to be sent out about 2/3rds by backlight
Blue light out is converted into feux rouges and green light.Compared with the white light that traditional LED is issued, there are more red, green, blue coloured light through filter
Color chips, thus show and more become clear, color is richer.Quantum dot film may be implemented full gamut, improve colour gamut to 100%NTSC with
On.But quantum dot film high-temp resisting high-humidity resisting and inoxidizability are poor, can reduce the service life of display.It is high to improve high temperature resistant
Wet and antioxygenic property is the big emphasis for preparing quantum dot film.
In order to improve the high temperature and humidity resistance and antioxygenic property of quantum dot film, the quantum dot film produced in the past is all logical
Increase barrier layer is crossed, to improve the water oxygen rejection rate and service life of quantum dot film, quantum dot decaying is reduced, reduces backlight module
Brightness and colour gamut decaying.
Summary of the invention
The present invention proposes a kind of backlight module, and rationally, structure is simple, directly in the light guide plate of backlight module and prism for design
One layer of quantum dot layer of adhesion substitutes original quantum dot film, while meeting the performance requirement of backlight module, quantum dot between piece
The high temperature and humidity resistance and antioxygenic property of layer, reduce costs.
A kind of backlight module, it includes light source, light guide plate and prismatic lens, it further includes quantum dot layer, the quantum dot
Layer adhesion is arranged between light guide plate and prismatic lens；The quantum dot layer includes including block water glue, aerosil particles and expansion
Shot is sub, includes quantum dot particle, quantum dot particle abbreviation quantum dot in the aerosil particles；The aerosil particles and expansion
Shot is dispersed in the glue that blocks water of quantum dot layer.
The quantum dot layer being made of the glue that blocks water containing aerosil particles and diffusion particle meets the performance need of backlight module
It asks, and the glue that blocks water is wrapped on aerosil particles and diffusion particle and plays the role of the oxygen that blocks water, so that quantum dot layer
Have high temperature and humidity resistance and antioxygenic property, to improve the water oxygen rejection rate and service life of quantum dot, reduces quantum dot
Decaying, reduces the brightness of backlight module and the decaying of colour gamut；Original barrier layer design is eliminated, to reduce costs.
Above-mentioned technical proposal is improved further and is refined, coating contains aerosil particles and diffusion grain on light guide plate
The glue that blocks water of son, then one layer of prismatic lens are covered on glue blocking water, block water glue and prismatic lens bonding, is finally passing through
UV solidification, forms quantum dot layer.
Be improved further and refine to above-mentioned technical proposal, the quantum dot layer includes following components: block water glue
Water 60-80%, aerosil particles 8-16%, diffusion particle 8-16%, photoinitiator 0.5-2.5%；The quantum dot particle contains
Amount is the 4-12% of the aerosil particles；The percentage composition is weight percentage.
Above-mentioned technical proposal is improved further and is refined, the diffusion particle is selected from polymethyl methacrylate grain
One of son, polyester granules, polycarbonate particle or silicon dioxide granule or at least two combination.
Above-mentioned technical proposal is improved further and is refined, the blocking water containing aerosil particles and diffusion particle
Glue is mixed evenly by the glue that blocks water, aerosil particles, diffusion particle and is constituted, and the glue that blocks water is added in two portions；Institute
The manufacture craft for the glue that blocks water containing aerosil particles and diffusion particle stated includes the following steps:
(1) glue that partially blocks water first is added to be mixed evenly with aerosil particles, diffusion particle, obtains containing aerosil particles and expansion
The glue crude product that blocks water of shot.
(2) it is mixed in the remaining glue that blocks water of addition with the glue crude product that blocks water containing aerosil particles and diffusion particle equal
It is even, obtain the glue finished product that blocks water containing aerosil particles and diffusion particle.
Above-mentioned technical proposal is improved further and is refined, 40% be added in step (1) blocks water glue, in step
Suddenly 60% be added in (2) blocks water glue.
Above-mentioned technical proposal is improved further and is refined, it is described block water glue by following weight ratio raw material group
At:
Two degree of functionality modified polyurethane resins, weight ratio 20%-40%；It is the base of glue for one of the main component of the glue
Body, polymerizable molecular amount is low, Grafting Structure is simple, good fluidity.
Acrylic acid-grafted epoxy resin, weight ratio 15%-35%；It is glue matrix for one of the main component of the glue,
Due to acrylic acid-grafted reason, adhesion strength is high after thermosetting, water-resistance is strong, water boiling resistance.
Hydroxy propyl methacrylate, weight ratio 10%-25%；The effect of graft crosslinking is primarily served, glue curing is enhanced
Intensity afterwards；
Isobornyl acrylate, weight ratio 10%-25%；Assistance polymerization is primarily served, polymer viscosity is reduced, improves in glue
The compatibility of each resin, the effect for improving uv-resistance energy.
1- hydroxycyclohexyl phenyl ketone, weight ratio 1%-5%；Mainly as the efficient light-initiated of UV curing system
Agent, anti-yellowing property are high.
2,4,6- trimethylbenzoy-dipheny phosphine oxides, weight ratio 0.1%-5%.It primarily serves and accelerates UV solidification
Effect.
The invention has the advantages that design is rationally, structure is simple, directly the adhesion between the light guide plate of backlight module and prismatic lens
One layer of quantum dot layer substitutes original quantum dot film, while meeting the performance requirement of backlight module, the high temperature resistant of quantum dot layer
High wet performance and antioxygenic property, reduce costs.
Detailed description of the invention
Fig. 1 is back light module unit structure schematic diagram.
1 light guide plate of light source, 2 prismatic lens, 3 quantum dot layer 4 in figure.
Specific embodiment
As shown, a kind of backlight module, it includes light source 1, light guide plate 2 and prismatic lens 3, it further includes quantum dot layer 4,
4 adhesion of quantum dot layer is arranged between light guide plate 2 and prismatic lens 3；The quantum dot layer 4 includes including the glue that blocks water
Water, aerosil particles and diffusion particle include quantum dot particle, quantum dot particle abbreviation quantum dot in the aerosil particles；
The aerosil particles and diffusion particle are dispersed in the glue that blocks water of quantum dot layer；Coating contains aerosil particles on light guide plate
With the glue that blocks water of diffusion particle, then blocking water one layer of prismatic lens are covered on glue, block water glue and prismatic lens bond, and finally exist
By solidifying by UV, quantum dot layer is formed.
The quantum dot layer includes following components: block water glue 60-80%, aerosil particles 8-16%, diffusion particle 8-
16%, photoinitiator 0.5-2.5%；The content of the quantum dot particle is the 4-12% of the aerosil particles；The percentage contains
Amount is weight percentage.
The diffusion particle is selected from polymethyl methacrylate particle, polyester granules, polycarbonate particle or silica
One of particle or at least two combination.
The glue that blocks water containing aerosil particles and diffusion particle is mixed by the glue that blocks water, aerosil particles, diffusion particle
Conjunction stirs evenly composition, and the glue that blocks water is added in two portions；The glue that blocks water containing aerosil particles and diffusion particle
The manufacture craft of water includes the following steps:
(1) 40% glue that blocks water first is added to be mixed evenly with aerosil particles, diffusion particle, obtains containing aerosil particles and expansion
The glue crude product that blocks water of shot.
(2) it mixes and stirs with the glue crude product that blocks water containing aerosil particles and diffusion particle the glue that blocks water of residue 60% is added
It mixes uniformly, obtains the glue finished product that blocks water containing aerosil particles and diffusion particle.
The glue that blocks water is made of the raw material of following weight ratio:
Two degree of functionality modified polyurethane resins, weight ratio 20%-40%；It is the base of glue for one of the main component of the glue
Body, polymerizable molecular amount is low, Grafting Structure is simple, good fluidity.
Acrylic acid-grafted epoxy resin, weight ratio 15%-35%；It is glue matrix for one of the main component of the glue,
Due to acrylic acid-grafted reason, adhesion strength is high after thermosetting, water-resistance is strong, water boiling resistance.
Hydroxy propyl methacrylate, weight ratio 10%-25%；The effect of graft crosslinking is primarily served, glue curing is enhanced
Intensity afterwards.
Isobornyl acrylate, weight ratio 10%-25%；Assistance polymerization is primarily served, polymer viscosity is reduced, improves glue
The effect of the compatibility of each resin, raising uv-resistance energy in water.
1- hydroxycyclohexyl phenyl ketone, weight ratio 1%-5%；Mainly as the efficient light-initiated of UV curing system
Agent, anti-yellowing property are high.
2,4,6- trimethylbenzoy-dipheny phosphine oxides, weight ratio 0.1%-5%.It primarily serves and accelerates UV solidification
Effect.
Due to the finiteness of literal expression, and objectively there is unlimited specific structure, for the common of the art
For technical staff, without departing from the principle of the present invention, can also make it is several improve, retouching or variation, can also be with
Above-mentioned technical characteristic is combined in the right way；These improve retouching, variation or combination, or not improved by invention
Conception and technical scheme directly apply to other occasions, are regarded as protection scope of the present invention.
Claims (7)
1. a kind of backlight module, it includes light source, light guide plate and prismatic lens, which is characterized in that it further includes quantum dot layer, described
Quantum dot layer adhesion be arranged between light guide plate and prismatic lens；The quantum dot layer includes micro- including block water glue, silica gel
Grain and diffusion particle include quantum dot particle, quantum dot particle abbreviation quantum dot in the aerosil particles；The silica gel
Particle and diffusion particle are dispersed in the glue that blocks water of quantum dot layer.
2. a kind of backlight module according to claim 1, which is characterized in that on light guide plate coating containing aerosil particles and
The glue that blocks water of diffusion particle, then one layer of prismatic lens are covered on glue blocking water, block water glue and prismatic lens bonding, finally logical
It crosses and is solidified by UV, form quantum dot layer.
3. a kind of backlight module according to claim 2, which is characterized in that the quantum dot layer includes following components:
Block water glue 60-80%, aerosil particles 8-16%, diffusion particle 8-16%, photoinitiator 0.5-2.5%；The quantum dot
The content of grain is the 4-12% of the aerosil particles；The percentage composition is weight percentage.
4. a kind of backlight module according to claim 3, which is characterized in that the diffusion particle is selected from polymethylacrylic acid
One of methyl esters particle, polyester granules, polycarbonate particle or silicon dioxide granule or at least two combination.
5. a kind of quantum dot film according to claim 3, which is characterized in that described contains aerosil particles and diffusion particle
The glue that blocks water be mixed evenly and constitute by the glue that blocks water, aerosil particles, diffusion particle, the glue that blocks water adds in two times
Enter；The manufacture craft of the glue that blocks water containing aerosil particles and diffusion particle includes the following steps:
(1) glue that partially blocks water first is added to be mixed evenly with aerosil particles, diffusion particle, obtains containing aerosil particles and expansion
The glue crude product that blocks water of shot；
(2) it is mixed evenly in the remaining glue that blocks water of addition with the glue crude product that blocks water containing aerosil particles and diffusion particle,
Obtain the glue finished product that blocks water containing aerosil particles and diffusion particle.
6. a kind of backlight module according to claim 5, which is characterized in that 40% be added in step (1) blocks water glue
Water, 60% be added in the step (2) block water glue.
7. a kind of backlight module according to claim 1, which is characterized in that the glue that blocks water is by following weight ratio
Raw material composition:
Two degree of functionality modified polyurethane resins, weight ratio 20%-40%；Acrylic acid-grafted epoxy resin, weight ratio 15%-
35%；Hydroxy propyl methacrylate, weight ratio 10%-25%；Isobornyl acrylate, weight ratio 10%-25%；1- hydroxyl
Cyclohexyl phenyl ketone, weight ratio 1%-5%；2,4,6- trimethylbenzoy-dipheny phosphine oxides, weight ratio 0.1%-
5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910039745.1A CN109739041A (en) | 2019-01-16 | 2019-01-16 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910039745.1A CN109739041A (en) | 2019-01-16 | 2019-01-16 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109739041A true CN109739041A (en) | 2019-05-10 |
Family
ID=66365063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910039745.1A Pending CN109739041A (en) | 2019-01-16 | 2019-01-16 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109739041A (en) |
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| CN103852817A (en) * | 2014-03-14 | 2014-06-11 | 宁波激智科技股份有限公司 | Quantum dot film applied to backlight module |
| CN103955093A (en) * | 2014-05-04 | 2014-07-30 | 常州丰盛光电科技股份有限公司 | Optical plate based on quantum dots |
| KR20150040608A (en) * | 2013-10-07 | 2015-04-15 | 엘지디스플레이 주식회사 | Liquid crystal display device having backlight unit using quantum dot |
| CN104910819A (en) * | 2015-06-12 | 2015-09-16 | 张家港康得新光电材料有限公司 | UV curing adhesive, quantum dot light conversion film and white light emitting device comprising quantum dot light conversion film |
| CN105505287A (en) * | 2016-02-02 | 2016-04-20 | 苏州索梦得电子有限公司 | Waterproof UV glue |
| CN106647023A (en) * | 2016-12-09 | 2017-05-10 | 深圳市华星光电技术有限公司 | Quantum dot liquid crystal display device and manufacturing method thereof |
| CN106908990A (en) * | 2016-03-16 | 2017-06-30 | 宁波长阳科技股份有限公司 | A kind of quantum dot film and preparation method thereof |
| CN206696467U (en) * | 2017-05-24 | 2017-12-01 | 信利半导体有限公司 | A kind of light guide structure, backlight and liquid crystal display die set |
| CN207895205U (en) * | 2018-03-22 | 2018-09-21 | 信利半导体有限公司 | A kind of quantum dot complex optical film, backlight module and liquid crystal display device |
-
2019
- 2019-01-16 CN CN201910039745.1A patent/CN109739041A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150040608A (en) * | 2013-10-07 | 2015-04-15 | 엘지디스플레이 주식회사 | Liquid crystal display device having backlight unit using quantum dot |
| CN103852817A (en) * | 2014-03-14 | 2014-06-11 | 宁波激智科技股份有限公司 | Quantum dot film applied to backlight module |
| CN103955093A (en) * | 2014-05-04 | 2014-07-30 | 常州丰盛光电科技股份有限公司 | Optical plate based on quantum dots |
| CN104910819A (en) * | 2015-06-12 | 2015-09-16 | 张家港康得新光电材料有限公司 | UV curing adhesive, quantum dot light conversion film and white light emitting device comprising quantum dot light conversion film |
| CN105505287A (en) * | 2016-02-02 | 2016-04-20 | 苏州索梦得电子有限公司 | Waterproof UV glue |
| CN106908990A (en) * | 2016-03-16 | 2017-06-30 | 宁波长阳科技股份有限公司 | A kind of quantum dot film and preparation method thereof |
| CN106647023A (en) * | 2016-12-09 | 2017-05-10 | 深圳市华星光电技术有限公司 | Quantum dot liquid crystal display device and manufacturing method thereof |
| CN206696467U (en) * | 2017-05-24 | 2017-12-01 | 信利半导体有限公司 | A kind of light guide structure, backlight and liquid crystal display die set |
| CN207895205U (en) * | 2018-03-22 | 2018-09-21 | 信利半导体有限公司 | A kind of quantum dot complex optical film, backlight module and liquid crystal display device |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190510 |
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| RJ01 | Rejection of invention patent application after publication |