CN206532057U - A kind of high brightness backlights source - Google Patents
A kind of high brightness backlights source Download PDFInfo
- Publication number
- CN206532057U CN206532057U CN201720209251.XU CN201720209251U CN206532057U CN 206532057 U CN206532057 U CN 206532057U CN 201720209251 U CN201720209251 U CN 201720209251U CN 206532057 U CN206532057 U CN 206532057U
- Authority
- CN
- China
- Prior art keywords
- light
- light guide
- guide plate
- high brightness
- source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of high brightness backlights source, including glue frame, light guide plate, blooming piece, light source and FPC wiring boards are equipped with the two sides of glue frame, hollow layer is set in the light guide plate, be placed with hollow layer the light for light source to be sent be oriented to light guide plate exiting surface and can limited support hollow layer upper and lower end face reflective support mechanism, the reflective support mechanism includes multiple support protrusions and the atomizing particle located at support protrusion inwall, the light direction of two light guide plate exiting surfaces is on the contrary, provided with one layer of double-sided reflecting type reflectance coating between two light guide plates.The light that the utility model produces non-area source reaches the effect of area source, improves brightness of the backlight in both direction, by the setting of double-sided reflecting type reflectance coating, brightness is more preferably.
Description
Technical field
The utility model belongs to back light source technique field, and in particular to a kind of high brightness backlights source.
Background technology
Traditional double-side backlight is fixed on the middle side edge of glue frame one simultaneously only with a light guide plate, including glue frame
The multiple light sources of electrical connection are realized by FPC wiring boards, the light guide plate being arranged in the middle part of glue frame and light guide plate two are respectively arranged on
Each a set of diaphragm of side, often covering diaphragm includes diffusion barrier, bright enhancement film.
When the light of backlight is directly provided by area source, image quality, the uniformity of LCDs are preferable, but light
Source power consumption is high.When the light of backlight is directly provided by line source, spot light, although light source is low in energy consumption, but LCDs
Image quality and uniformity it is poor.How display with double faces brightness is significantly lifted in the case where not improving power consumption, be urgent
The problem of being essential to be solved.
The content of the invention
The utility model is intended at least solve one of technical problem present in prior art.Therefore, the utility model is carried
For a kind of high brightness backlights source, it is therefore an objective to the light of non-area source output is reached the effect of area source, double-face backlight is improved
Brightness.
To achieve these goals, the technical scheme that the utility model is taken is：
In a kind of high brightness backlights source, including glue frame, the FPC wiring boards and light source that are placed in glue frame, the two sides of glue frame
It is arranged with light guide plate and blooming piece, the light guide plate and hollow layer is set, is placed with hollow layer for light source to be sent
Light be oriented to light guide plate exiting surface and can limited support hollow layer upper and lower end face reflective support mechanism, the reflective support machine
Structure includes multiple support protrusions and the atomizing particle located at support protrusion inwall, the light direction phase of two light guide plate exiting surfaces
Instead, provided with one layer of double-sided reflecting type reflectance coating between two light guide plates.
The double-sided reflecting type reflectance coating is ESR reflectance coatings.
The support protrusion is waveform, triangle or mountain ridge-like structure.
The blooming piece includes diffusion barrier and bright enhancement film.
The diffusion barrier is one layer, and the bright enhancement film is two layers, and two layers of bright enhancement film is on diffusion barrier.
The exiting surface of the light guide plate is raised provided with point-like.
The circumferential side wall of the light guide plate is coated with white inverse framework.
The beneficial effects of the utility model：The utility model have changed light extraction mode inside backlight, light guide plate hollow layer
Interior atomizing particle reflexes to the light that light source is sent the exiting surface of light guide plate, the light that non-face light source can so produced
The effect of area source is reached, light source power consumption is taken into account and produces the effect of uniform light, improve backlight in both direction
Brightness, by the setting of double-sided reflecting type reflectance coating, more preferably, support protrusion and atomizing particle are arranged in light guide plate for brightness
Portion, while playing a supporting role, reaches above-mentioned area source effect and produces the effect of uniform light, atomizing particle is arranged on phase
To in the cavity of closing, it is to avoid enter impurity and influence light effects.The setting of white inverse framework, makes reflectivity carry significantly
It is high.
Brief description of the drawings
This specification includes the following drawings, and shown content is respectively：
Fig. 1 is the utility model backlight one side structural representation；
Fig. 2 is the partial structural diagram of the utility model light guide plate；
Fig. 3 is the utility model FPC wiring boards and light source structure structure schematic diagram；
Fig. 4 is partial structural diagram of the present utility model.
Marked in figure：
1st, glue frame, 2, reflectance coating, 3, light guide plate, 4, diffusion barrier, the 5, first bright enhancement film, the 6, second bright enhancement film, 7, shading glue,
8th, double faced adhesive tape, 9, FPC wiring boards, 10, light source, 11, support protrusion, 12, atomizing particle, 13, atomization point, 14, positioning convex,
15th, blooming piece, 16, spot-like projections, 17, hypotenuse, 20, black strip piece, 21, white reflective framework.
Embodiment
Below against accompanying drawing, by the description to embodiment, further detailed is made to embodiment of the present utility model
Thin explanation, it is therefore an objective to help those skilled in the art have to design of the present utility model, technical scheme it is more complete, accurate and
Deep understanding, and contribute to it to implement.
Embodiment 1
As shown in Figure 1 to Figure 3, a kind of high brightness backlights source, including glue frame 1 and the FPC wiring boards 9 and light being placed in glue frame
Light guide plate 3 and blooming piece 15 are arranged with source 10, the two sides of glue frame 1, light source 10 is fixedly welded on FPC wiring boards,
Fluid welding semi-finished product (FPC+ light sources) are therewith constituted, FPC wiring boards 9 can be fixed in glue frame by double faced adhesive tape 8, optical film
Piece includes diffusion barrier 4 and bright enhancement film；The light being placed with hollow layer, hollow layer for light source to be sent is set in light guide plate 3
Be oriented to light guide plate exiting surface and can limited support hollow layer upper and lower end face reflective support mechanism, reflective support mechanism include it is multiple
Support protrusion 11 and the atomizing particle 12 located at the inwall of support protrusion 11, the light direction of two exiting surfaces of light guide plate 3 is on the contrary, two
Provided with one layer of double-sided reflecting type reflectance coating 2 between individual light guide plate 3.Atomizing particle 12 uses the transparent grain with high reflectance,
After light source irradiates, it reflexes to the light that light source is sent from all angles from all angles enter light guide plate
The exiting surface of light guide plate, the light that non-face light source can so produced reaches the effect of area source, take into account light source power consumption and
The effect of uniform light is produced, support protrusion and atomizing particle are arranged inside light guide plate, while playing a supporting role,
Reach above-mentioned area source effect and produce the effect of uniform light, atomizing particle is arranged in the cavity of relative closure, it is to avoid entered
Enter impurity and influence light effects.Support protrusion 11 can be waveform, triangle or mountain ridge-like structure.Light source can be used
LED is used as light source.
The light direction of two exiting surfaces of light guide plate 3 is on the contrary, and anti-provided with one layer of double-sided reflecting type between two light guide plates 3
Film 2 is penetrated, so as to realize two pieces of light guide plates respectively to the bottom surface of glue frame and top surface emergent ray, the light direction of two light guide plates 3
Provided with being sequentially provided with blooming piece and shading glue.Double-sided reflecting type reflectance coating is ESR reflectance coatings, with being using PET systems resin
The multi-layer film structure that raw material is made, is the optical thin film for having very high reflectivity in visible wavelength range, reflects the time
Loss is small, by the light effectively sent using light source, so as to improve picture brightness.By setting double-sided reflecting type reflectance coating, from
First light guide plate or the light of the second light guide plate side opposite with light-emitting window can be reflected back leaded light by double-sided reflecting type reflectance coating
Plate, so as to substantially increase light efficiency.The reflector plate of a total reflection is pressed from both sides using double light guide plates and in double light guide plates, directly to leading
The light of tabula rasa is totally reflected, and reduces the loss of light, so as to greatly improve the purpose of brightness.
If light guide plate 3 is placed with dry nebulization point 13 positioned at the light outlets position of light source 10.Because light guide plate is in light source luminescent mouthful
The thin and close dry nebulization point of certain zonule if position is arranged, is diffused to the light of light source luminescent mouthful, plays scattering
Effect, can effectively eliminate light source luminescent mouthful hot spot, the visual effect reached.Atomization point close quarters and above-mentioned support are convex
Rise preferably to correspond to and be configured, by both mating reactions, uniform light is high derived from light guide plate exiting surface, and unglazed
Spot, with more preferable visual effect.Atomization point can be processed by laser process technology to be formed, specific arrangement design
When, atomization point 13 is equidistant arrangement, dense arrangement.In order to not influence backlight luminescence brightness, atomization point need to be small and shallow, in processing
When, laser energy, which is adjusted, must be significantly smaller than conventional point energy.
Diffusion barrier 4 is one layer, and bright enhancement film is two layers, respectively the first bright enhancement film 5 and the second bright enhancement film 6, two layers of bright enhancement film
On diffusion barrier 4.Shading glue uses black shading glue.It is from top to bottom black successively that the erection sequence of specific each part, which is,
Black shading glue 7, the second bright enhancement film 6, the first bright enhancement film 5, diffusion barrier 4, light guide plate 3, reflectance coating 2 and glue frame 1.Using black two-sided
Glue, on the one hand for shading, on the other hand for pasting liquid crystal display.Liquid crystal display is fixed with glue frame by black shading glue.
In order to increase structural strength, the backlight also includes chase, and chase and glue frame are preferably integrated formed structure.It can use
Injection machine passes through injection mold injection moulding integrated molding.In addition, chase also has the effect of protection and shielding.Set on the side plate of chase
There is the raised fin structure for radiating so that the heat that LED/light source is produced easily is scattered away.The circumferential side wall cladding of light guide plate 3
There is white inverse framework 21, by setting up white reflective framework in four the week side of boss walls, reflectivity is greatly improved.
Embodiment 2
As shown in figure 4, the present embodiment and the difference of embodiment 1 are, the exiting surface of light guide plate 3 is raised provided with point-like
16, side that light guide plate 3 is connected with glue frame 1 formed by reflectance coating 2 towards the top droop of glue frame 1 hypotenuse 17.Point-like projection can be with
The exiting surface of light guide plate is directly injection-moulded in by way of injection molding, good scattering process is played to light.The side of light guide plate
Face is attached in glue frame, or neck is set in glue frame, and light guide plate side sets bayonet socket, is coordinated by bayonet socket with neck and is blocked
Dress.The inclination angle of hypotenuse is 10 ° to 15 ° so that have the light that reflectance coating is reflected by the vertical direction movement to light guide plate,
Narrower shading glue is covered the light gone out from light guide plate offside reflection, it is to avoid backlight side forms bright line.
The surface of hypotenuse 17 is provided with black strip piece 20, it is to avoid light never needs to the position light extraction of light extraction, causes not wish
Hope that the optics occurred is bad, such as socket hot spot etc..It is preferred that, the length of black strip piece is identical with the width of light guide plate, has
Effect prevent it is bad go out optical issue, black strip piece can be attached to the surface of hypotenuse by way of stickup.Black strip piece and glue
Flexible heat conductive silica gel is preferably filled in frame, the sealing space of reflectance coating formation, on the one hand can be for heat conduction, the opposing party's mask
Prevent from rocking.
The utility model is exemplarily described above in association with accompanying drawing.Obviously, the utility model is implemented not
Limited by aforesaid way.As long as employ the various unsubstantialities that method design of the present utility model and technical scheme are carried out
Improvement；Or it is not improved, above-mentioned design of the present utility model and technical scheme are directly applied into other occasions, at this
Within the protection domain of utility model.
Claims (5)
- It is right in the two sides of glue frame 1. a kind of high brightness backlights source, including glue frame, the FPC wiring boards and light source that are placed in glue frame Claim to be provided with light guide plate and blooming piece, it is characterised in that：Set in hollow layer, hollow layer and be placed with for inciting somebody to action in the light guide plate Light that light source is sent be oriented to light guide plate exiting surface and can limited support hollow layer upper and lower end face reflective support mechanism, it is described anti- Penetrating supporting mechanism includes multiple support protrusions and the atomizing particle located at support protrusion inwall, the light extraction of two light guide plate exiting surfaces In the opposite direction, provided with one layer of double-sided reflecting type reflectance coating between two light guide plates.
- 2. high brightness backlights source according to claim 1, it is characterised in that：The double-sided reflecting type reflectance coating reflects for ESR Film.
- 3. high brightness backlights source according to claim 1, it is characterised in that：The support protrusion be waveform, triangle or Mountain ridge-like structure.
- 4. high brightness backlights source according to claim 1, it is characterised in that：The blooming piece includes diffusion barrier and added lustre to Film.
- 5. high brightness backlights source according to claim 4, it is characterised in that：The diffusion barrier is one layer, and the bright enhancement film is Two layers, two layers of bright enhancement film is on diffusion barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720209251.XU CN206532057U (en) | 2017-03-06 | 2017-03-06 | A kind of high brightness backlights source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720209251.XU CN206532057U (en) | 2017-03-06 | 2017-03-06 | A kind of high brightness backlights source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206532057U true CN206532057U (en) | 2017-09-29 |
Family
ID=59915862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720209251.XU Expired - Fee Related CN206532057U (en) | 2017-03-06 | 2017-03-06 | A kind of high brightness backlights source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206532057U (en) |
-
2017
- 2017-03-06 CN CN201720209251.XU patent/CN206532057U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170929 Termination date: 20190306 |