CN204285132U - A kind of backlight source module reducing light leak - Google Patents
A kind of backlight source module reducing light leak Download PDFInfo
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- CN204285132U CN204285132U CN201420737365.8U CN201420737365U CN204285132U CN 204285132 U CN204285132 U CN 204285132U CN 201420737365 U CN201420737365 U CN 201420737365U CN 204285132 U CN204285132 U CN 204285132U
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- adhesive
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- reflector
- light
- light guide
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Abstract
Reduce a backlight source module for light leak, relate to backlight.Comprise light guide plate, reflector, frame, the first adhesive-layer and the second adhesive-layer, light guide plate and reflector are stacked up and down, frame is the framework of accommodating light guide plate and reflector, and light guide plate and reflector are embedded in frame, and the first adhesive-layer is positioned at the periphery of reflector and reflector is bonding with frame; Second adhesive-layer extends between light guide plate and reflector periphery by the first adhesive-layer; First adhesive-layer and the second adhesive-layer are light-absorbing adhesive-layer, are absorbed by the light from the first adhesive-layer position injection.Described light-absorbing adhesive-layer is black adhesive-layer or blue adhesive-layer.Adhesive-layer changes black glue or blue glue into by transparent adhesive tape, is absorbed by light leak, the leakage problem that the infiltration thoroughly solving the adhesive-layer of bonding frame and reflector produces at the adhesive-layer that light guide sheet and reflector periphery are formed.The technical program is simple and ingenious, successful.
Description
Technical field
The utility model relates to backlight, particularly a kind of backlight source module reducing light leak.
Background technology
The electronic product of the band such as mobile phone display screen generally all uses backlight, and backlight is fitted in the back side of display screen.At present, backlight adopts light emitting diode as light source usually, and light emitting diode is fitted to backlight source module, produces planar light and penetrates from exiting surface, makes display screen luminous.But the back side (i.e. bottom surface) of backlight source module or periphery have light leakage phenomena, light is not fully utilized on the one hand, and the brightness of display screen is reduced, and sight property is affected on the other hand, and especially transparent and translucent housing is more obvious.
In order to reduce the light leakage phenomena at the backlight source module back side (i.e. bottom surface) or periphery, Chinese patent discloses a kind of backlight module (notification number CN201739909U), all scribbles reflecting coating in the peripheral side of light guide plate except light source position, thus forms reflecting layer; Scribble reflecting coating at the perisporium medial surface of framework simultaneously.
In order to solve the ubiquitous light leakage phenomena of backlight, Chinese patent also discloses a kind of high reverse--bias LED-backlit structure (notification number CN201739909U), comprise drain pan, light guide plate and LED light source, this drain pan comprises base plate and four blocks of side plates, four blocks of side plates are linked in sequence on base plate, form an installation cavity; Light guide plate is arranged in this installation cavity, between drain pan and light guide plate, arrange reflecting unit, and this reflecting unit has the characteristic of reflective membrane, and the light transmitted from light guide plate can reflect by this reflecting unit, realizes the object reducing light leak and improve light efficiency.
but prior art ignores the main portions causing backlight light leak, that is exactly the frame of backlight and the bonding site of reflecting piece.Although the concrete structure of backlight source module has various ways, light guide plate, reflector and frame (support) are basic modules.As shown in Figures 1 and 2 (scale amplifying of Fig. 2), light guide plate 1 is positioned at the upper surface of backlight, and it is lower is reflector 2, and reflector 2 is bonding with frame 3, defines one have certain thickness adhesive-layer 4 in bonding part.Due to the infiltration of adhesive-layer 4, also form adhesive-layer 5 at the periphery of reflector 2 with light guide plate 1 and have certain thickness, like this, there is the step of adhesive-layer 5 in the periphery between reflector 2 and light guide plate 1.Owing to generally using transparent adhesive tape time bonding, in fact the surrounding of light guide plate 1 and reflector 2 along between define " transparent step " (i.e. an adhesive-layer 5), light certainly will penetrate formation one from this " transparent step " (i.e. adhesive-layer 5) enclose light leak 5.At present, do not carry out specific aim process to the light leak that " transparent step " (i.e. the adhesive-layer 5) between light guide plate 1 and reflector 2 produces, this is the ubiquitous major reason of backlight light leak.Therefore, can not neglect and even ignore the leakage problem that between reflector 2 and light guide plate 1, " transparent step " (i.e. adhesive-layer 5) produces, specific aim measure must be taked, process.
On the other hand, the technical scheme of the minimizing backlight light leakage phenomena disclosed in above-mentioned patent stresses, in the reflecting power improving module, to play certain effect.But these technical schemes are confined to the reflecting power improving module.In fact, although light leak have lost some light, be not enough to produce large impact to the brightness of backlight, the way only by improving reflecting power not can solve the problem of backlight light leak.
Summary of the invention
The deficiency that the infiltration that the utility model is intended to the adhesive-layer overcoming current bonding frame and reflector does not process at the light leak that the adhesive-layer that light guide sheet and reflector periphery are formed produces, provides a kind of backlight source module reducing light leak.It is remarkable that this backlight source module reduces backlight light leakage effect.
The utility model is a kind of, and to reduce the technical scheme of the backlight source module of light leak as follows:
A kind of backlight source module reducing light leak, comprise light guide plate, reflector, frame, the first adhesive-layer and the second adhesive-layer, light guide plate and reflector are stacked up and down, frame is the framework of accommodating light guide plate and reflector, light guide plate and reflector are embedded in frame, and the first adhesive-layer is positioned at the periphery of reflector and reflector is bonding with frame; Second adhesive-layer extends between light guide plate and reflector periphery by the first adhesive-layer; First adhesive-layer and the second adhesive-layer are light-absorbing adhesive-layer, are absorbed by the light from the first adhesive-layer position injection.
Technique scheme is further elaborated:
Described light-absorbing adhesive-layer is black adhesive-layer.
Described light-absorbing adhesive-layer is blue adhesive-layer.
The beneficial effects of the utility model are:
One, specific aim process has been carried out to the leakage problem that the infiltration of the adhesive-layer of bonding frame and reflector produces at the adhesive-layer that light guide sheet and reflector periphery are formed, adhesive-layer changes black glue or blue glue (black glue effect is best) into by transparent adhesive tape, light leak is absorbed, the leakage problem that the infiltration thoroughly solving the adhesive-layer of bonding frame and reflector produces at the adhesive-layer that light guide sheet and reflector periphery are formed.
Its two, breach when conventional art reduces backlight light leakage phenomena and stress in the limitation of reflecting power improving module, technical solutions of the utility model are simple and ingenious, successful.
Accompanying drawing explanation
Fig. 1 is existing backlight source module front view;
Fig. 2 is the A-A sectional view (amplifying than the engineer's scale of Fig. 1) of Fig. 1;
Fig. 3 is the utility model backlight source module front view;
Fig. 4 is B-B sectional view in Fig. 3 (amplifying than the engineer's scale of Fig. 3);
Fig. 5 is C-C sectional view in Fig. 3 (amplifying than the engineer's scale of Fig. 3).
In figure: 1, light guide plate; 2, reflector; 3, frame; 4, the first adhesive-layer; 5, the second adhesive-layer; 6, light leak; 7, LED.
Detailed description of the invention
Below, detailed description of the invention of the present utility model is introduced by reference to the accompanying drawings.
As shown in Fig. 3 to Fig. 5, a kind of backlight source module reducing light leak, comprise light guide plate 1, reflector 2, frame 3, first adhesive-layer 4 and the second adhesive-layer 5, light guide plate 1 is stacked with reflector about 2, frame 3 is the framework of accommodating light guide plate 1 and reflector 2, light guide plate 1 and reflector 2 are embedded in frame 3, and the first adhesive-layer 4 is positioned at the periphery of reflector 2 and reflector 2 is bonding with frame 3; Second adhesive-layer 5 extends between light guide plate 1 and reflector 2 periphery by the first adhesive-layer 4; First adhesive-layer 4 and the second adhesive-layer 5 are light-absorbing adhesive-layer, are absorbed by the light from the first adhesive-layer 4 position injection.
Described light-absorbing adhesive-layer is black adhesive-layer.So-called black adhesive-layer, namely color is the adhesive-layer of black
Described light-absorbing adhesive-layer is blue adhesive-layer.So-called blue adhesive-layer, namely color is blue adhesive-layer
Adhesive-layer changes black glue or blue glue (black glue effect is best) into by transparent adhesive tape, is absorbed by light leak, the leakage problem that the infiltration thoroughly solving the adhesive-layer of bonding frame and reflector produces at the adhesive-layer that light guide sheet and reflector periphery are formed.
The utility model breaches the limitation stressing the reflecting power at raising module when conventional art reduces backlight light leakage phenomena, and technical scheme is simple and ingenious, successful.
Embodiment of the present utility model just introduces its detailed description of the invention, does not lie in and limits its protection domain.The technical staff of the industry can make some amendment under the inspiration of the present embodiment, therefore all equivalences done according to the utility model the scope of the claims change or modify, and all belong within the scope of the utility model Patent right requirement.
Claims (3)
1. one kind is reduced the backlight source module of light leak, it is characterized in that: comprise light guide plate, reflector, frame, the first adhesive-layer and the second adhesive-layer, light guide plate and reflector are stacked up and down, frame is the framework of accommodating light guide plate and reflector, light guide plate and reflector are embedded in frame, and the first adhesive-layer is positioned at the periphery of reflector and reflector is bonding with frame; Second adhesive-layer extends between light guide plate and reflector periphery by the first adhesive-layer; First adhesive-layer and the second adhesive-layer are light-absorbing adhesive-layer, are absorbed by the light from the first adhesive-layer position injection.
2. a kind of backlight source module reducing light leak according to claim 1, is characterized in that: described light-absorbing adhesive-layer is black adhesive-layer.
3. a kind of backlight source module reducing light leak according to claim 1, is characterized in that: described light-absorbing adhesive-layer is blue adhesive-layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420737365.8U CN204285132U (en) | 2014-12-01 | 2014-12-01 | A kind of backlight source module reducing light leak |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420737365.8U CN204285132U (en) | 2014-12-01 | 2014-12-01 | A kind of backlight source module reducing light leak |
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| Publication Number | Publication Date |
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| CN204285132U true CN204285132U (en) | 2015-04-22 |
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| CN201420737365.8U Active CN204285132U (en) | 2014-12-01 | 2014-12-01 | A kind of backlight source module reducing light leak |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10126489B2 (en) | 2016-08-09 | 2018-11-13 | Microsoft Technology Licensing, Llc | Liquid crystal display module |
| CN115311938A (en) * | 2022-08-22 | 2022-11-08 | 北京京东方显示技术有限公司 | Display module |
-
2014
- 2014-12-01 CN CN201420737365.8U patent/CN204285132U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10126489B2 (en) | 2016-08-09 | 2018-11-13 | Microsoft Technology Licensing, Llc | Liquid crystal display module |
| CN115311938A (en) * | 2022-08-22 | 2022-11-08 | 北京京东方显示技术有限公司 | Display module |
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