CN201228916Y - Diffusing plate and directly-down back light module unit with the diffusing plate - Google Patents
Diffusing plate and directly-down back light module unit with the diffusing plate Download PDFInfo
- Publication number
- CN201228916Y CN201228916Y CNU2008200371444U CN200820037144U CN201228916Y CN 201228916 Y CN201228916 Y CN 201228916Y CN U2008200371444 U CNU2008200371444 U CN U2008200371444U CN 200820037144 U CN200820037144 U CN 200820037144U CN 201228916 Y CN201228916 Y CN 201228916Y
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- diffuser plate
- led lamp
- source
- carton
- lamp source
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Abstract
The utility model discloses a diffuser plate and a downright type backlight module group which comprises the diffuser plate, wherein a sensitive surface of the diffuser plate and a position corresponding to an LED lamp source are equipped with an outward bulgy cone, when beam which is emitted from the LED lamp source is irradiated through the cone, the beam can be refracted in a large angle, which leads the light speed not to be over centralized, thereby reducing or eliminating the light spot phenomenon of the diffuser plate.
Description
Technical field
The utility model relates to a kind of diffuser plate and includes the down straight aphototropism mode set of this diffuser plate, the especially a kind of diffuser plate of point source of light through reducing or eliminate after this diffuser plate effect that make.
Background technology
At present, the employed module backlight of large scale liquid crystal display (Back Light Module), be a kind of down straight aphototropism mode set (Direct Back Light Module), under the situation that relevant issues such as the color and luster of light emitting diode (LED) and brightness solve gradually, successful developing is enough to be applied to the LED lamp source of down straight aphototropism mode set.
As depicted in figs. 1 and 2, the down straight aphototropism mode set 1 in the existing LED of having lamp source comprises, carton and crate body 11, a plurality of LED lamps source 12, diffuser plate 13, optical diffusion sheet 14.Wherein, the inner surface of carton and crate body 11 is to have bright of reflection source effect, LED lamp source 12 is arranged on carton and crate body 11 inside, and the light source luminescent direction in LED lamp source 12 is provided with towards the top of carton and crate body 11 opening part, and diffuser plate 13 is arranged on the top opening part of carton and crate body 11; The light source that send in LED lamp source 12 sees through diffuser plate 13 backs and outwards exports and attack the liquid crystal panel (not shown) and use; Wherein, form bright spot for light source that LED lamp source 12 sends being seen through be unlikely behind the diffuser plate 13 too to concentrate because of this light source, in the manufacture process of diffuser plate 13, can add the scattering particles 131 (Diffusion bead) or the scattering diluent of some therein, with this bright spot that reduces or eliminate the point source of light generation in LED lamp source 12, make the whole externally light source of output reach the diffusion effect of uniform.If the even words effect of the light source of employing said method is bad, the optical diffusion sheet 14 of some (showing concrete condition) then is set, above diffuser plate 13 to add the diffusion effect of intense light source.
Above-mentioned down straight aphototropism mode set 1 is used because of the LED lamp source 12 of the high briliancy of having arranged in pairs or groups, but, the light source intensity that launch in the LED lamp source 12 of high briliancy is very big, it is often not enough to some extent to the diffusion effect of this light source only to rely on scattering particles 131 in the diffuser plate 13 or scattering diluent, even add the auxiliary of optical diffusion sheet 14, the diffusion effect of light source is still undesirable, and interpolation optical diffusion sheet 14 is understood the briliancy when reducing integrated light sources output.
At above-mentioned situation, some enlarges LED lamp source 12 and diffuser plate 13 distance between the two in the prior art, the light source light in LED lamp source 12 is unlikely too concentrates on the diffuser plate 13.But, after LED lamp source 12 and diffuser plate 13 distance between the two is amplified, will cause the thickness of carton and crate body 11 to increase, the developing direction of this and the slimming of present technique field is disagreed.
The utility model content
The utility model has been announced a kind of diffuser plate and has been comprised the down straight aphototropism mode set of this diffuser plate, be mainly used in and overcome when LED lamp source is applied to down straight aphototropism mode set, as easy as rolling off a log because of the deficiency of traditional diffuser plate for the light beam of light source diffusion in LED lamp source, make diffuser plate form the bright spot phenomenon, with the integrated light source homogenising deficiency that causes exporting, the usefulness of utilizing that influences this light source shows.
For achieving the above object, the technical scheme that the utility model adopted is:
A kind of diffuser plate, it comprises the sensitive surface of the light beam of light source that is used to receive LED lamp source, the cone of the outside protrusion that is provided with corresponding to the position in each LED lamp source is used for the exiting surface of external output light source light beam.
A kind of down straight aphototropism mode set, it comprise inner surface have can reflection source bright carton and crate body, be arranged on a plurality of LED lamps source on carton and crate body inner bottom surface, the diffuser plate of light source that be arranged on carton and crate body top opening part and that be used to receive LED lamp source, the light source light direction in LED lamp source is towards the top of carton and crate body opening, the sensitive surface of diffuser plate is towards carton and crate body inside, that be provided with outside protrusion corresponding to the position in each LED lamp source and be used for the external cone of output of light source, pyramidal exiting surface is towards the outside of carton and crate body.
Because the employing of technique scheme, the utility model compared with prior art has the following advantages:
The utility model is provided with the cone of outside protrusion in the position that the sensitive surface of diffuser plate regards to LED lamp source, the light beam of launching when LED lamp source is penetrated when this cone, this light source will become the wide-angle refraction, make no longer concentrations of this light beam, simultaneously, cooperate cone to become larger volume and contain relatively large scattering particles or scattering diluent, the diffusion effect of the light source that sees through is strengthened.
Description of drawings
Fig. 1 is for having the decomposing schematic representation of the down straight aphototropism mode set in LED lamp source in the prior art;
Fig. 2 is the light source motion schematic diagram of Fig. 1;
The decomposing schematic representation of the down straight aphototropism mode set that Fig. 3 announces for the utility model;
The light source motion schematic diagram of the diffuser plate that Fig. 4 announces for the utility model;
Pyramidal a kind of embodiment on the diffuser plate that Fig. 5 and Fig. 6 announce for the utility model;
The embodiment of the exiting surface of the diffuser plate that Fig. 7 announces for the utility model;
Wherein,
1, down straight aphototropism mode set; 11, carton and crate body; 12, LED lamp source; 13, diffuser plate; 131, scattering particles; 14, optical diffusion sheet;
2, down straight aphototropism mode set; 21, carton and crate body; 22, LED lamp source; 23, diffuser plate; 231, scattering particles; 232, sensitive surface; 233, exiting surface; 234, cone; 2341, root.
The specific embodiment
As shown in Figure 3, the utility model relates to a kind of diffuser plate, reaches the down straight aphototropism mode set of using this diffuser plate, and this down straight aphototropism mode set 2 comprises a carton and crate body 21, a plurality of LED lamps source 22 and diffuser plate 23; Carton and crate body 21 inner surfaces have can reflection source bright, LED lamp source 22 is arranged on carton and crate body 21 inner bottom surfaces, the light direction of its light source makes it towards the top of carton and crate body 21 opening part, ginseng has the scattering particles 231 or the scattering diluent of some in the body of diffuser plate 23, diffuser plate 23 is arranged on the top opening part of carton and crate body 21, the sensitive surface 232 of diffuser plate 23 towards carton and crate body 21 inside accepting the light beam of light source in LED lamp source 22, the exiting surface 233 of diffuser plate 23 towards carton and crate body 21 outsides so that light source is externally exported.Wherein, the sensitive surface 232 of diffuser plate 23 also is provided with the cone 234 of outside protrusion corresponding to the position in each LED lamp source 22.
As shown in Figure 4, root 2341 areas of cone 234 are not less than the area that its pairing LED lamp source 22 luminous time beams are covered on the sensitive surface 232 of diffuser plate 23, therefore, it is to make this light source produce the refraction of wide-angle that the light beam in LED lamp source 22 is penetrated through cone 234, this light source is no longer too concentrated and formation bright spot phenomenon, moreover, because of cone 234 volumes greater than other smooth positions, the scattering particles 231 or the scattering diluent that also contain a greater number in the relative cone 234, but light source also nationality helps diffusion effect by the effect of scattering particles 231 or scattering diluent, reduce in the time of so can making light source leave diffuser plate 23 by exiting surface 233 or elimination bright spot phenomenon, the light source that this spot light down straight aphototropism mode set 2 is exported reaches the uniformization effect of expection.
As illustrated in Figures 5 and 6, the periphery of cone 234 can be arranged to the pattern to its internal recess, with can be arranged to its outside pattern that protrudes, the purpose of this set is to produce further when making the light source projects in LED lamp source 22 to change, and helps the diffusion effect of light source.
As shown in Figure 7, in this example, the sensitive surface 232 of diffuser plate 23 is arranged to coarse vaporific, and the purpose of this set is when making light beam leave this exiting surface 233, carries out scattering once more and the chance that obtains to spread.
The purpose of this utility model is: be provided with cone 234 with LED lamp source 22 opposite positions on the sensitive surface 232 of diffuser plate 23, the light beam that utilizes this cone 234 that LED lamp source 22 is sent is spread, and the bright spot that reduction or elimination diffuser plate 23 form makes the whole light source of exporting reach the effect of homogenising.
Claims (6)
1, a kind of diffuser plate is characterized in that: it comprises the sensitive surface of the light beam of light source that is used to receive LED lamp source, and the cone of the outside protrusion that is provided with corresponding to the position in each LED lamp source is used for the exiting surface of external output light source light beam.
2, a kind of diffuser plate according to claim 1 is characterized in that: described pyramidal root area is not less than the scope that its pairing described LED lamp source institute emitted light beams forms on described sensitive surface.
3, a kind of diffuser plate according to claim 1 is characterized in that: described pyramidal periphery is arranged to described pyramidal internal recess, perhaps is arranged to described pyramidal outside the protrusion.
4, a kind of diffuser plate according to claim 1 is characterized in that: contain scattering particles or scattering diluent in the body of described diffuser plate.
5, a kind of diffuser plate according to claim 1 is characterized in that: the described exiting surface of described diffuser plate has coarse vaporific surface.
6, a kind of down straight aphototropism mode set, it is characterized in that: it comprise inner surface have can reflection source bright carton and crate body, be arranged on a plurality of LED lamps source on described carton and crate body inner bottom surface, be arranged on described carton and crate body top opening part and be used to receive the diffuser plate of the light source in LED lamp source, the light source light direction in described LED lamp source is towards the top of described carton and crate body opening, the sensitive surface of described diffuser plate is towards described carton and crate body inside, that be provided with outside protrusion corresponding to the position in each described LED lamp source and be used for the external cone of output of light source, described pyramidal exiting surface is towards the outside of described carton and crate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200371444U CN201228916Y (en) | 2008-05-30 | 2008-05-30 | Diffusing plate and directly-down back light module unit with the diffusing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200371444U CN201228916Y (en) | 2008-05-30 | 2008-05-30 | Diffusing plate and directly-down back light module unit with the diffusing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201228916Y true CN201228916Y (en) | 2009-04-29 |
Family
ID=40633863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200371444U Expired - Lifetime CN201228916Y (en) | 2008-05-30 | 2008-05-30 | Diffusing plate and directly-down back light module unit with the diffusing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201228916Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032527A (en) * | 2010-09-14 | 2011-04-27 | 金展精技工业有限公司 | Illuminating beam shaping system |
| CN102261621A (en) * | 2010-05-28 | 2011-11-30 | 敦网光电股份有限公司 | Light reflective structure and light panel |
| CN103162192A (en) * | 2013-03-18 | 2013-06-19 | 晶科电子（广州）有限公司 | Direct down type backlight module |
| CN105864682A (en) * | 2015-01-20 | 2016-08-17 | 冠捷投资有限公司 | Reflector used for backlight module and backlight module |
| CN106028855A (en) * | 2014-02-26 | 2016-10-12 | 吉瑞高新科技股份有限公司 | Electronic cigarette and light-emission adjustment method thereof |
| CN107422405A (en) * | 2017-09-25 | 2017-12-01 | 马瑞利汽车电子(广州)有限公司 | A kind of diffusion board structure and display backlight structure |
| CN109324442A (en) * | 2018-11-09 | 2019-02-12 | 惠州市华星光电技术有限公司 | Light source assembly and backlight module |
| WO2019127754A1 (en) * | 2017-12-26 | 2019-07-04 | 惠州市华星光电技术有限公司 | Composite diffusion plate and ultra-thin direct-lit backlight module |
| CN112162428A (en) * | 2020-08-28 | 2021-01-01 | 福州大学 | Mini-LED through hole dimming structure backlight source and manufacturing method thereof |
-
2008
- 2008-05-30 CN CNU2008200371444U patent/CN201228916Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261621A (en) * | 2010-05-28 | 2011-11-30 | 敦网光电股份有限公司 | Light reflective structure and light panel |
| CN102261621B (en) * | 2010-05-28 | 2014-04-30 | 敦网光电股份有限公司 | Light reflective structure and light panel |
| CN102032527A (en) * | 2010-09-14 | 2011-04-27 | 金展精技工业有限公司 | Illuminating beam shaping system |
| CN103162192A (en) * | 2013-03-18 | 2013-06-19 | 晶科电子（广州）有限公司 | Direct down type backlight module |
| CN106028855A (en) * | 2014-02-26 | 2016-10-12 | 吉瑞高新科技股份有限公司 | Electronic cigarette and light-emission adjustment method thereof |
| CN105864682A (en) * | 2015-01-20 | 2016-08-17 | 冠捷投资有限公司 | Reflector used for backlight module and backlight module |
| CN107422405A (en) * | 2017-09-25 | 2017-12-01 | 马瑞利汽车电子(广州)有限公司 | A kind of diffusion board structure and display backlight structure |
| CN107422405B (en) * | 2017-09-25 | 2023-09-19 | 马瑞利汽车电子(广州)有限公司 | Diffusion plate structure and display screen backlight structure |
| WO2019127754A1 (en) * | 2017-12-26 | 2019-07-04 | 惠州市华星光电技术有限公司 | Composite diffusion plate and ultra-thin direct-lit backlight module |
| US10775535B2 (en) | 2017-12-26 | 2020-09-15 | Huizhou China Star Optoelectronics Technology Co., Ltd. | Composite diffuser and ultra-thin direct type backlight module |
| CN109324442A (en) * | 2018-11-09 | 2019-02-12 | 惠州市华星光电技术有限公司 | Light source assembly and backlight module |
| CN109324442B (en) * | 2018-11-09 | 2021-10-08 | 惠州市华星光电技术有限公司 | Light source assembly and backlight module |
| CN112162428A (en) * | 2020-08-28 | 2021-01-01 | 福州大学 | Mini-LED through hole dimming structure backlight source and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090429 |
|
| CX01 | Expiry of patent term |