CN203949043U - A kind of backlight module and display unit - Google Patents
A kind of backlight module and display unit Download PDFInfo
- Publication number
- CN203949043U CN203949043U CN201420385079.XU CN201420385079U CN203949043U CN 203949043 U CN203949043 U CN 203949043U CN 201420385079 U CN201420385079 U CN 201420385079U CN 203949043 U CN203949043 U CN 203949043U
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- light
- backlight module
- light source
- lgp
- backboard
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Abstract
The utility model relates to the technical field of display unit, discloses a kind of backlight module and display unit.This backlight module comprises backboard, is arranged on the LGP in backboard, is arranged at the light source on sidewall relative with the light inlet side of LGP on backboard; Light source is the light source of transmitting black light, and on the site of LGP, is provided with the wavelength that changes the light launched of light source and makes it change into the conversion coating of visible ray.The beneficial effects of the utility model are: employing can be launched the light source of black light as the light source of backlight module, and convert the black light of launching to visible ray by conversion coating, the light of launching due to light source can only change into visible ray at conversion layer place, has avoided " firefly " phenomenon; The light effect that goes out of backlight module is decided by the site arranging, and the corresponding relation between light source and site does not have higher matching requirements, therefore, has reduced the production difficulty of backlight module, has improved the production efficiency of backlight module.
Description
Technical field
The utility model relates to the technical field of display unit, refers more particularly to a kind of backlight module and display unit.
Background technology
The side entrance back module processing mode of existing main flow for use visible white light LED as light source, use LGP as light transmition medium, the high reflective particle material (example: silica, titanium dioxide) and the reflector plate that print by bottom surface of light guide plate, destroy the total reflection of LGP inside, light can be sent from BLU front.The meeting of this traditional processing mode produces some problems, as: LED light source caloric value strengthens, and needs to increase Heat Conduction Material; Nearly LED light source place can produce bright band and Hotspot, and light inlet side needs wider glue frame to hide and stays white area; The error of manufacturing technique requirent is harsher, all higher to the tolerance in display unit bar assembling position, LGP printing position.
In addition, can form clear zone in LED particle dead ahead, between two LED particles, can form dark space, this bright blanking bar is Hotspot (firefly) phenomenon.General improvement mode is by site control band part light and shade, forms waywardly but bright blanking bar belongs to physical characteristic, improves comparatively difficulty of design, requires net-point printing position to mate with LED particle position higher, more bad will cause final production time.
Utility model content
The utility model provides a kind of backlight module and display unit, in order to improve the illumination effect of backlight module, the service life of further improving display unit.
The utility model provides a kind of backlight module, and this backlight module comprises backboard, is arranged on the LGP in described backboard, is arranged at the light source on sidewall relative with the light inlet side of described LGP on described backboard; Wherein, described light source is the light source of transmitting black light, and on the site of described LGP, is provided with the black light that described light source is launched and changes into the conversion coating of visible ray.
In technique scheme, can launch the light source of black light as the light source of backlight module by adopting, and convert the black light of launching to visible ray by conversion coating, realize the luminous of backlight module.The light of launching due to light source can only change into visible ray at conversion layer place, and this conversion layer correspondence is arranged on the site on LGP, and the light that send multiple sites can form more uniform face light after mixing, thereby avoids occurring " firefly " phenomenon.In addition, can find out by foregoing description, the light effect that goes out of backlight module is decided by the site arranging, corresponding relation between light source and site does not have higher matching requirements, therefore, adopt said structure can reduce the required precision that backlight module assembles, reduced the production difficulty of backlight module, improved the production efficiency of backlight module.
Preferably, described light source is ultraviolet light source, and described conversion coating is quantum dot fluorescence bisque.Good light can be provided.
Preferably, also comprise the reflecting layer being arranged in backboard and between described backboard and LGP.Improve the utilization rate of luminous energy, reduce the power consumption of backlight module.
Preferably, also comprise the multiple optical films that are arranged on described LGP.Improve the light effect that of backlight module.
Preferably, described LGP is the LGP that polymethyl methacrylate materials is made.There is good light transmition effect.
The utility model also provides a kind of display unit, and this display unit comprises above-mentioned backlight module described in any.
In technique scheme, by adopting above-mentioned backlight module, after the light mixing that multiple sites are sent, can form more uniform face light, thereby avoid occurring " firefly " phenomenon.In addition, can find out by foregoing description, the light effect that goes out of backlight module is decided by the site arranging, corresponding relation between light source and site does not have higher matching requirements, therefore, adopt said structure can reduce the required precision that backlight module assembles, reduced the production difficulty of backlight module, improved the production efficiency of backlight module.
Brief description of the drawings
The structural representation of the backlight module that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1.
Reference numeral:
10-backboard 20-light source 30-LGP
31-site 311-conversion coating 40-optical film
Light-collecting piece under the upper light-collecting piece 43-of the upper diffusion sheet 42-of 41-
Diffusion sheet 50-reflecting layer under 44-
Detailed description of the invention
In order to improve the illumination effect of backlight module, further improve the service life of display unit, the utility model provides a kind of backlight module and display unit, in the technical scheme of the utility model embodiment, launch the light source of black light by employing, and by conversion coating, black light is changed into visible ray, thereby reduced the heat that light source produces, and then reduced the temperature rise of display unit, thereby the service life of having improved display unit.For making the purpose of this utility model, technical scheme and advantage clearer, below as an example of nonrestrictive embodiment example, the utility model is described in further detail.
As depicted in figs. 1 and 2, Fig. 1 shows the structural representation of the backlight module that the utility model embodiment provides, and Fig. 2 is the partial enlarged drawing at A place in Fig. 1.
The utility model embodiment provides a kind of backlight module, and this backlight module comprises backboard 10, is arranged on the LGP 30 in described backboard 10, is arranged at the light source 20 on sidewall relative with the light inlet side of described LGP 30 on described backboard 10; Wherein, described light source 20 is the light source 20 of transmitting black light, and on the site 31 of described LGP 30, is provided with the black light that described light source 20 is launched and changes into the conversion coating 311 of visible ray.
In the above-described embodiments, can launch the light source 20 of black light as the light source 20 of backlight module by adopting, and convert the black light of launching to visible light ray by conversion coating 311, realize the luminous of backlight module.The light of launching due to light source 20 can only change into visible ray at conversion layer place, and this conversion layer correspondence is arranged on the site 31 on LGP 30, therefore, in each site, 31 places form a luminous point, thereby avoid the higher problem of light source 20 side brightness of side entrance back module, can find out by foregoing description, the side entrance back module of said structure forms the effect of similar down straight aphototropism mode set, each site 31 is wherein equivalent to a light source 20, the light that send multiple sites 31 can form more uniform face light after mixing, thereby avoid occurring " firefly " phenomenon.Meanwhile, for the light source 20 of transmitting black light, although its light sending with certain energy, this energy is not to occur with the form of heat energy, thereby has effectively improved the problem of the temperature rise of backlight module.
In addition, can find out by foregoing description, the light effect that goes out of backlight module is decided by the site 31 arranging, corresponding relation between light source 20 and site 31 does not have higher matching requirements, therefore, adopt said structure can reduce the required precision that backlight module assembles, reduced the production difficulty of backlight module, improved the production efficiency of backlight module.
The light source 20 that wherein can launch black light can be the light source 20 of the different black lights of transmitting, the black light of its transmitting can be: ultraviolet ray, infrared ray, far infrared, microwave, infrared light, ultraviolet light, x ray, gamma-rays etc., above-mentioned black light can change into visible ray by different conversion coating 311, as: silicon dioxide granule can convert infrared light to visible ray, quantum dot fluorescence powder can be by ultraviolet conversion layer visible ray.Preferably, described light source 20 is ultraviolet light source 20, and described conversion coating 311 is quantum dot fluorescence bisque.By fluorescent material, ultraviolet ray is changed into the technology comparative maturity of visible ray, and it is lower to produce the price of ultraviolet equipment and fluorescent material, cost performance is higher.
In addition, this backlight module also comprises the reflecting layer being arranged in backboard 10 and between described backboard 10 and LGP 30.The visible ray of propagating out from LGP 30 and black light can be reflected back in LGP 30 by this reflecting layer, some black lights may be irradiated on quantum dot fluorescence powder after reflection, thereby change into visible ray.More light can be penetrated from the exiting surface of LGP 30, improved the utilization rate of backlight module to light, thereby reduced the power consumption of backlight module.
In order further to improve the light effect that of backlight module, preferably, this backlight module also comprises the multiple optical films 40 that are arranged on described LGP 30.By diffusion sheet and other optical film 40, can effectively improve the light path that of light, make the light that backlight module irradiates form a uniform face light, improve the light effect that of backlight module.Concrete, this optical film 40 comprises: along what be cascading away from the direction of LGP 30: lower diffusion sheet 44, lower light-collecting piece 43, upper light-collecting piece 42 and upper diffusion sheet 41, can improve the effect that irradiates light by said structure.
Concrete, the LGP 30 that described LGP 30 is made for polymethyl methacrylate materials, has preferably light transmition effect.
The utility model embodiment also provides a kind of display unit, and this display unit comprises above-mentioned backlight module described in any.
This display unit can be product or the parts that display floater, Electronic Paper, OLED (Organic Light Emitting Diode, organic light emitting diode) panel, LCD TV, liquid crystal display, DPF, mobile phone, panel computer etc. have any Presentation Function.In above-mentioned display unit, by adopting the backlight module in above-described embodiment, there is good light effects, and then improved the display effect of display unit.
Continue with reference to figure 1 and Fig. 2, concrete, in the above-described embodiments, can launch the light source 20 of black light as the light source 20 of backlight module by adopting, and convert the black light of launching to visible light ray by conversion coating 311, realize the luminous of backlight module.The light of launching due to light source 20 can only change into visible ray at conversion layer place, and this conversion layer correspondence is arranged on the site 31 on LGP 30, therefore, in each site, 31 places form a luminous point, thereby avoid the higher problem of light source 20 side brightness of side entrance back module, can find out by foregoing description, the side entrance back module of said structure forms the effect of similar down straight aphototropism mode set, each site 31 is wherein equivalent to a light source 20, the light that send multiple sites 31 can form more uniform face light after mixing, thereby avoid occurring " firefly " phenomenon, improve the display effect of display unit.Meanwhile, for the light source 20 of transmitting black light, although its light sending with certain energy, this energy is not to occur with the form of heat energy, thereby has effectively improved the problem of the temperature rise of backlight module.
In addition, can find out by foregoing description, the light effect that goes out of backlight module is decided by the site 31 arranging, corresponding relation between light source 20 and site 31 does not have higher matching requirements, therefore, adopt said structure can reduce the required precision that backlight module assembles, reduced the production difficulty of backlight module, improve the production efficiency of backlight module, and then improved the production efficiency of display unit.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if these amendments of the present utility model and within modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (6)
1. a backlight module, is characterized in that, comprises backboard, is arranged on the LGP in described backboard, is arranged at the light source on sidewall relative with the light inlet side of described LGP on described backboard; Wherein, described light source is the light source of transmitting black light, and on the site of described LGP, is provided with the black light that described light source is launched and changes into the conversion coating of visible ray.
2. backlight module as claimed in claim 1, is characterized in that, described light source is ultraviolet source, and described conversion coating is quantum dot fluorescence bisque.
3. backlight module as claimed in claim 1, is characterized in that, also comprises the reflecting layer being arranged in backboard and between described backboard and LGP.
4. backlight module as claimed in claim 1, is characterized in that, also comprises the multiple optical films that are arranged on described LGP.
5. the backlight module as described in claim 1～4 any one, is characterized in that, described LGP is the LGP that polymethyl methacrylate materials is made.
6. a display unit, is characterized in that, comprises the backlight module as described in claim 1～5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420385079.XU CN203949043U (en) | 2014-07-11 | 2014-07-11 | A kind of backlight module and display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420385079.XU CN203949043U (en) | 2014-07-11 | 2014-07-11 | A kind of backlight module and display unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203949043U true CN203949043U (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420385079.XU Expired - Fee Related CN203949043U (en) | 2014-07-11 | 2014-07-11 | A kind of backlight module and display unit |
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| Country | Link |
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| CN (1) | CN203949043U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107092134A (en) * | 2017-06-07 | 2017-08-25 | 深圳Tcl新技术有限公司 | Backlight module and display device |
| CN108445673A (en) * | 2018-03-02 | 2018-08-24 | 张家港康得新光电材料有限公司 | A kind of optic film structure and backlight assembly |
| CN108873153A (en) * | 2018-07-18 | 2018-11-23 | 福州大学 | Side entrance back module based on quantum dot body light guide plate goes out light control method |
-
2014
- 2014-07-11 CN CN201420385079.XU patent/CN203949043U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107092134A (en) * | 2017-06-07 | 2017-08-25 | 深圳Tcl新技术有限公司 | Backlight module and display device |
| CN108445673A (en) * | 2018-03-02 | 2018-08-24 | 张家港康得新光电材料有限公司 | A kind of optic film structure and backlight assembly |
| CN108873153A (en) * | 2018-07-18 | 2018-11-23 | 福州大学 | Side entrance back module based on quantum dot body light guide plate goes out light control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20210711 |