CN109828408A - Novel backlight module structure and its application - Google Patents
Novel backlight module structure and its application Download PDFInfo
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- CN109828408A CN109828408A CN201711178512.7A CN201711178512A CN109828408A CN 109828408 A CN109828408 A CN 109828408A CN 201711178512 A CN201711178512 A CN 201711178512A CN 109828408 A CN109828408 A CN 109828408A
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- quantum dot
- dot layer
- blue led
- backlight module
- miniature blue
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Abstract
A kind of novel backlight module structure in display technology field and its application, including flexible base board；Miniature blue LED, array are arranged on flexible base board；Quantum dot layer is set on the light-emitting surface of miniature blue LED, and the quantum dot layer includes red quantum dot and green quantum dot；Clear polyimides coating covers quantum dot layer, is packaged protection to quantum dot layer；Optical compound film is bonded on clear polyimides coating.The present invention uses technology of the miniature blue LED in conjunction with quantum dot colloid, form high-color rendering white-light backlight, the color developing effect of backlight module is improved, while being packaged by thermostable transparent polyimide coating, the slimming and flexibility of backlight module are realized.
Description
Technical field
The present invention relates to a kind of technology of field of display, specifically a kind of novel backlight module structure and its answer
With.
Background technique
Exemplary backlit modular structure as shown in Figure 3, more using membrane material, integral thickness is larger, while single diode
Calorific value is larger, and enough gaps need to be reserved between lower diffusion barrier and backlight and are radiated, be unfavorable for display thin type with
And the development of flexible display technologies.On the other hand, white light-emitting diodes in the prior art generally passes through blue light diode and fluorescence
Powder cooperation realizes that luminescent spectrum is bad, and blue light is too strong, and feux rouges and green light are weak, and display property is poor, and colour gamut is lower.
Summary of the invention
The present invention In view of the above shortcomings of the prior art, proposes a kind of novel backlight module structure and its application,
Using technology of the miniature blue LED in conjunction with quantum dot colloid, high-color rendering white-light backlight is formd, is improved
The color developing effect of backlight module, while being packaged by thermostable transparent polyimide coating, realize the thin of backlight module
Type and flexibility.
The present invention is achieved by the following technical solutions:
The present invention relates to a kind of novel backlight module structure, including be cascading flexible base board, light source layer and thoroughly
Bright polyimide coating.
The light source layer includes miniature blue LED and quantum dot layer；The miniature blue LED
Array is arranged on flexible base board, and on its light-emitting surface be equipped with quantum dot layer, the quantum dot layer include red quantum dot and
Green quantum dot.
The clear polyimides coating covers quantum dot layer；Not only photopermeability is good for clear polyimides coating, and
And high temperature resistant, effective packaging protection can be carried out to light source layer, it is ensured that miniature blue LED and quantum dot layer are in height
Service life under warm environment.
It is equipped with optical compound film far from flexible base board side on the clear polyimides coating, compared to traditional expansion
The three-layer composite structure for dissipating film, upper bright enhancement film and lower bright enhancement film, can effectively reduce the overall thickness of backlight module, be conducive to backlight module
Slimming and flexibility.
Preferably, the flexible base board includes Kapton and the flexible circuitry that is fixed on Kapton
Plate.
The long edge size of the miniature blue LED is less than 100 microns, the interval of miniature blue LED
Size is 10~1000 microns.
Preferably, the quantum dot layer applies on the light-emitting surface for being set to miniature blue LED and miniature blue-light-emitting two
In interval between pole pipe, and red quantum dot and green quantum dot mixing in quantum dot layer.
Alternatively, according to R-G-B array by red quantum dot in quantum dot layer and the difference selective dump of green quantum dot in
On the light-emitting surface of miniature blue LED, wherein be printed with red on the corresponding miniature blue LED of R pixel
Quantum dot layer, the blue light that red quantum dot is issued through miniature blue LED excite and issue feux rouges, and G pixel is corresponding
Green quantum dot layer, the indigo plant that green quantum dot is issued through miniature blue LED are printed on miniature blue LED
Light excites and issues green light, and B pixel issues blue light without print processing, miniature blue LED, to mix shape
At high-color rendering white-light.
OCA optical cement (Optically Clear is equipped between the optical compound film and clear polyimides coating
Adhesive)。
It is additionally provided with water oxygen barrier layer and flatness layer between the clear polyimides coating and optical compound film, convenient for fitting
Optical compound film, and the ageing-resistant performance of clear polyimides coating and light source layer is improved, prolong the service life.
Preferably, the optical compound film is DBEF (Dual Brightness Enhance Film reflection-type blast
Film), APF (Advanced Polarizer Film, reflection type polarizing film), POP film (Prism on Prism, composite prism increase
Light film) in any one.
The present invention relates to a kind of flexible liquid crystal displays, including the novel backlight module structure.
Technical effect
Compared with prior art, the present invention uses technology of the miniature blue LED in conjunction with quantum dot colloid, shape
At high-color rendering white-light backlight, the color developing effect of backlight module is improved, while being applied by thermostable transparent polyimides
Layer is packaged, and realizes the slimming and flexibility of backlight module.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment 1；
Fig. 2 is the structural schematic diagram of embodiment 2；
Fig. 3 is typical back light module unit structure in the prior art；
In figure: flexible base board 1, miniature blue LED 2, mixing quantum dot layer 3, clear polyimides coating 4,
OCA optical cement 5, optical compound film 6, green quantum dot layer 7, red quantum dot layer 8.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention will be described in detail.
Embodiment 1
As shown in Figure 1, the present embodiment is related to a kind of novel backlight module structure, including the flexible base board being cascading
1, light source layer and optical compound film 6.
The light source layer includes several miniature blue LEDs 2 and mixing quantum dot layer 3；The miniature blue
2 array of light emitting diode is arranged on flexible base board 1 and is connected with flexible base board 1, and the mixing quantum dot layer 3 covers miniature
Blue LED array is simultaneously bonded with flexible base board 1；The mixing quantum dot layer 3 includes the red quantum dot of random distribution
With green quantum dot.
The surface far from flexible base board 1 is equipped with clear polyimides coating 4 on the mixing quantum dot layer 3, described
Optical compound film 6 is bonded on clear polyimides coating 4 by OCA optical cement 5.
Preferably, the flexible base board 1 includes Kapton and the flexible wires being fixed on Kapton
Road plate.
Preferably, the optical compound film 6 is any one in DBEF, APF, POP film.
The present embodiment is fixed with flexible base board 1 by miniature blue LED 2 and is connected, and is being fixed with miniature blue hair
Coating mixing quantum dot layer 3 on the flexible base board 1 of optical diode 2, and mixing quantum dot layer 3 is made to cover miniature two pole of blue-light-emitting
Pipe 2 is simultaneously filled full of in the gap between miniature blue LED 2；It is transparent poly- in the coating of mixing 3 upper surface of quantum dot layer again
Acid imide coating 4 simultaneously solidifies, and is bonded finally by OCA optical cement 5 with optical compound film 6.
The long edge size of the miniature blue LED 2 is less than 100 microns, the miniature blue LED 2
Between spacing size be 10~1000 microns, due to the size of miniature blue LED 2 is small and interval it is small so that light source
Mixing uniformity is good, saves diffusion barrier and directly fits optical compound film 6.
Embodiment 2
As shown in Fig. 2, the present embodiment is related to a kind of novel backlight module structure, including the flexible base board being cascading
1, light source layer and optical compound film 6.
The light source layer includes several miniature blue LEDs 2,2 array of miniature blue LED
It is arranged on flexible base board 1 and is connected with flexible base board 1；According to R-G-B array, the corresponding miniature blue of the R pixel
Red quantum dot layer 8 is printed on light emitting surface of light emitting diode, on the corresponding miniature blue LED light-emitting surface of G pixel
It is printed with green quantum dot layer 7, B pixel is without print processing.
Clear polyimides coating 4, clear polyimides coating are equipped with far from 1 side of flexible base board in the light source layer
4 cover green quantum dot layer 7, red quantum dot layer 8 and miniature blue LED 2, and fill and be full of miniature blue-light-emitting
In gap between diode 2.
The optical compound film 6 is bonded on clear polyimides coating 4 by OCA optical cement 5, and in transparent polyamides
Water oxygen barrier layer and flatness layer are equipped between imines coating 4 and OCA optical cement 5.
Preferably, the flexible base board 1 includes Kapton and the flexible wires being fixed on Kapton
Road plate.
Preferably, the optical compound film 6 is any one in DBEF, APF, POP film.
The present embodiment is fixed with flexible base board 1 by miniature blue LED 2 and is connected, by R-G-B array each micro-
Green quantum dot layer 7 and red quantum dot layer 8 are set on the light-emitting surface of type blue LED 2, it is sub- to be coated transparent polyamides
Amine coating 4, and clear polyimides coating 4 is made to cover green quantum dot layer 7, red quantum dot layer 8 and miniature blue-light-emitting two
Pole pipe 2, then water oxygen barrier layer and flatness layer are successively coated on clear polyimides coating 4, finally by OCA optical cement 5 with
Optical compound film 6 is bonded.
The long edge size of the miniature blue LED 2 is less than 100 microns, the miniature blue LED 2
Between spacing size be 10~1000 microns.
It is emphasized that: the above is only presently preferred embodiments of the present invention, not make in any form to the present invention
Limitation, any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention,
All of which are still within the scope of the technical scheme of the invention.
Claims (8)
1. a kind of novel backlight module structure characterized by comprising
Flexible base board；
Miniature blue LED, array are arranged on flexible base board；
Quantum dot layer is set on the light-emitting surface of miniature blue LED, and the quantum dot layer includes red quantum
Point and green quantum dot；
Clear polyimides coating covers quantum dot layer, is packaged protection to quantum dot layer；
Optical compound film is bonded on clear polyimides coating.
2. novel backlight module structure according to claim 1, characterized in that the flexible base board includes that polyimides is thin
Film and the flexible circuit board being fixed on Kapton.
3. novel backlight module structure according to claim 1, characterized in that the length of the miniature blue LED
For side size less than 100 microns, the gap size of miniature blue LED is 10~1000 microns.
4. novel backlight module structure according to claim 1, characterized in that the quantum dot layer, which applies, is set to miniature blue
On light emitting diode and in the interval of miniature blue LED, and quantum dot layer includes mixed red quantum dot and green
Quantum dot.
5. novel backlight module structure according to claim 1, characterized in that the quantum dot layer includes red quantum dot
Layer and green quantum dot layer, according to the selective dump of R-G-B array on miniature blue LED, wherein R pixel pair
Red quantum dot layer is printed on the miniature blue LED answered, on the corresponding miniature blue LED of G pixel
It is printed with green quantum dot layer.
6. novel backlight module structure according to any one of claims 1-5, characterized in that the clear polyimides
The side of coating is equipped with water oxygen barrier layer and flatness layer.
7. novel backlight module structure according to any one of claims 1-5, characterized in that the optical compound film
For any one in DBEF, APF, POP film.
8. a kind of flexible liquid crystal display, characterized in that including the described in any item Novel back optical mode group knots of such as claim 1-7
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711178512.7A CN109828408A (en) | 2017-11-23 | 2017-11-23 | Novel backlight module structure and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711178512.7A CN109828408A (en) | 2017-11-23 | 2017-11-23 | Novel backlight module structure and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109828408A true CN109828408A (en) | 2019-05-31 |
Family
ID=66858085
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711178512.7A Pending CN109828408A (en) | 2017-11-23 | 2017-11-23 | Novel backlight module structure and its application |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174802A (en) * | 2019-06-03 | 2019-08-27 | 惠州市华星光电技术有限公司 | A kind of quantum dot LED backlight and preparation method thereof |
| CN111752045A (en) * | 2020-07-15 | 2020-10-09 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN112631023A (en) * | 2020-12-25 | 2021-04-09 | 舟山扑浪实业有限公司 | Quantum dot display panel and quantum dot display device |
| CN113741098A (en) * | 2021-11-04 | 2021-12-03 | 拓米(成都)应用技术研究院有限公司 | UTG-QD type MINI-LED board and application, preparation method and optical framework thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174802A (en) * | 2019-06-03 | 2019-08-27 | 惠州市华星光电技术有限公司 | A kind of quantum dot LED backlight and preparation method thereof |
| WO2020244055A1 (en) * | 2019-06-03 | 2020-12-10 | 惠州市华星光电技术有限公司 | Quantum dot led backlight source and preparation method therefor |
| US11281048B2 (en) | 2019-06-03 | 2022-03-22 | Huizhou China Star Optoelectronics Technology Co., Ltd. | Display panel, quantum dot LED backlight source, and preparation method thereof |
| CN111752045A (en) * | 2020-07-15 | 2020-10-09 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN112631023A (en) * | 2020-12-25 | 2021-04-09 | 舟山扑浪实业有限公司 | Quantum dot display panel and quantum dot display device |
| CN112631023B (en) * | 2020-12-25 | 2022-03-29 | 深圳扑浪创新科技有限公司 | Quantum dot display panel and quantum dot display device |
| CN113741098A (en) * | 2021-11-04 | 2021-12-03 | 拓米(成都)应用技术研究院有限公司 | UTG-QD type MINI-LED board and application, preparation method and optical framework thereof |
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Application publication date: 20190531 |