CN107329323A - A kind of backlight with radiator structure - Google Patents
A kind of backlight with radiator structure Download PDFInfo
- Publication number
- CN107329323A CN107329323A CN201710716920.7A CN201710716920A CN107329323A CN 107329323 A CN107329323 A CN 107329323A CN 201710716920 A CN201710716920 A CN 201710716920A CN 107329323 A CN107329323 A CN 107329323A
- Authority
- CN
- China
- Prior art keywords
- backlight
- guide plate
- light guide
- tight
- heat
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133628—Illuminating devices with cooling means
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a kind of backlight with radiator structure, including backlight body, backlight body includes light guide plate, the side of light guide plate is provided with backlight, the bottom of light guide plate is closely fitted with reflectance coating, the tight of light guide plate is fitted with lower diffusion barrier, the tight of lower diffusion barrier is fitted with bright enhancement film, the tight of bright enhancement film is fitted with diffusion barrier, the side of light guide plate is provided with light-shielding sheet, the tight of backlight body is bonded with the top of thermal conductive silicon lipid layer, thermal conductive silicon lipid layer and is provided with fin.The present invention is bonded with thermal conductive silicon lipid layer in the tight of backlight body, and it is provided with fin at the top of thermal conductive silicon lipid layer, air is the non-conductor of heat, conduction of the heat to fin can be hindered, by setting thermal conductive silicon lipid layer, makes the conduction of heat more smooth rapid, splintery aluminium alloy fin, increasing heat radiation area, accelerates heat transfer, extends backlight service life.
Description
Technical field
The present invention relates to a kind of backlight, more particularly to a kind of backlight with radiator structure.
Background technology
Backlight, for ensuring that LCDs sends the light supply apparatus of light behind, because liquid crystal display device is in itself
It is transparent and will not lights, so needing backlight to aid in, some indexs such as brightness, uniformity of backlight is to liquid crystal
The correlated performance of display screen has direct influence, and light guide plate is acryl/PC plate material using optical grade, then high with having
The hitech materials of reflectivity and not extinction, leaded light is stamped in the acryl sheet material bottom surface of optical grade with UV screen printing technologies
Point, draws the light issued from lamp in the stop of optical grade acryl plate surface using optical grade acryl sheet material, works as light
When being mapped to each light guiding points, then reflected light can be destroyed conditioned reflex and is projected by light guide plate front, passed through toward all angles diffusion
Various densitys, light guiding points not of uniform size, can make light guide plate uniformly light-emitting, and the purposes of reflectance coating is that the light for exposing bottom surface is anti-
It is emitted back towards in light guide plate, for improving the service efficiency of light.
Existing billboard is usually, as backlight, for large-scale billboard, to be transferred to LED using LED etc.
An energy part as light output, a part is converted into heat, due to the general outdoor layout of billboard, in hot environment
In, large board can gather substantial amounts of heat, if can not shed in time, easily influence life of product, and existing advertisement
Board is in order to increase brightness, it is necessary to increase LED quantity, but this can also increase caloric value, and backlight effect is bad.
The content of the invention
The technical problem to be solved in the present invention is to overcome the defect of prior art there is provided a kind of backlight with radiator structure
Plate, thermal conductive silicon lipid layer is bonded with the tight of backlight body, and is provided with fin at the top of thermal conductive silicon lipid layer, is made
The conduction of heat is more smooth rapid, and splintery aluminium alloy fin, increasing heat radiation area accelerates heat transfer.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme：
A kind of backlight with radiator structure of the present invention, including backlight body, the backlight body include light guide plate, institute
The side for stating light guide plate is provided with backlight, and the bottom of the light guide plate is closely fitted with reflectance coating, the top of the light guide plate
Lower diffusion barrier is closely fitted with, the tight of the lower diffusion barrier is fitted with bright enhancement film, the tight patch of the bright enhancement film
Conjunction has upper diffusion barrier, and the side of the light guide plate is provided with light-shielding sheet, and the tight of the backlight body is bonded with heat conduction
Fin is provided with the top of silicone grease layer, the thermal conductive silicon lipid layer.
As a preferred technical solution of the present invention, the thermal conductive silicon lipid layer is made for heat-conducting silicone grease.
As a preferred technical solution of the present invention, the fin is that aluminium alloy or copper are made, the radiating
Piece is shaped as splintery.
As a preferred technical solution of the present invention, the quantity of the light-shielding sheet is 3.
Compared with prior art, beneficial effects of the present invention are as follows：
The present invention is bonded with thermal conductive silicon lipid layer in the tight of backlight body, and is provided with the top of thermal conductive silicon lipid layer scattered
Backing, air is the non-conductor of heat, can hinder conduction of the heat to fin, by setting thermal conductive silicon lipid layer, make heat
Conduction is more smooth rapid, splintery aluminium alloy fin, and increasing heat radiation area accelerates heat transfer, will not assemble heat
In backlight, extend backlight service life.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention
Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the backlight body exploded view of the present invention；
In figure：1st, backlight body；2nd, light guide plate；3rd, reflectance coating；4th, lower diffusion barrier；5th, bright enhancement film；6th, upper diffusion barrier；7th, shading
Paper；8th, thermal conductive silicon lipid layer；9th, fin；10th, backlight.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment 1
As shown in Figure 1-2, the present invention provides a kind of backlight with radiator structure, including backlight body 1, backlight body
1 includes light guide plate 2, and the side of light guide plate 2 is provided with backlight 10, and the bottom of light guide plate 2 is closely fitted with reflectance coating 3, guide-lighting
The tight of plate 2 is fitted with lower diffusion barrier 4, and the tight of lower diffusion barrier 4 is fitted with bright enhancement film 5, and the top of bright enhancement film 5 is tight
Close to be fitted with diffusion barrier 6, the side of light guide plate 2 is provided with light-shielding sheet 7, and the tight of backlight body 1 is bonded with heat conduction
Silicone grease layer 8, the top of thermal conductive silicon lipid layer 8 is provided with fin 9.
Further, thermal conductive silicon lipid layer 8 is made for heat-conducting silicone grease, and heat-conducting silicone grease is commonly called as thermal grease, heat-conducting silicone grease with
Organic silicone is primary raw material, heat-resisting, excellent thermal conductivity the material of addition, the heat-conducting type organosilicon smectic compound being made,
Heat-conducting silicone grease has high thermal conductivity, splendid thermal conductivity, the wider temperature in use of good electrical insulating property, well using stable
Property, relatively low denseness and good workability, air is the non-conductor of heat, can hinder heat to the conduction of fin 9, is led to
Setting thermal conductive silicon lipid layer 8 is crossed, makes the conduction of heat more smooth rapid.
Fin 9 is made for aluminium alloy, and fin 9 is shaped as splintery, by aluminium flake by the way of crimping, system
Into variously-shaped fin 9, then it is bound up with the appropriate bottom plate of various fin 9 with the mode of welding, so both
The requirement of radiating is reached, while also accelerating manufacturing schedule.
The quantity of light-shielding sheet 7 is 3, and backlight body 1 is shaped as cuboid, and four sides of cuboid, side is set
There is backlight 10, other three sides are bonded with light-shielding sheet 7, brightness is strengthened by the converging beam direction of light-shielding sheet 7.
Specifically, by setting thermal conductive silicon lipid layer 8, making the conduction of heat more smooth rapid, splintery aluminium alloy or copper
Fin 9 processed, increasing heat radiation area accelerates heat transfer, and light guide plate 2 is acryl/PC plate material using optical grade, then apparatus
There are high reflectivity and the not hitech materials of extinction, stamped in the acryl sheet material bottom surface of optical grade with UV screen printing technologies
Light guiding points, the stop of the light that issues from lamp in optical grade acryl plate surface is drawn using optical grade acryl sheet material, when
When light is mapped to each light guiding points, then reflected light can be destroyed conditioned reflex and is penetrated by the front of light guide plate 2 toward all angles diffusion
Go out, by various densitys, light guiding points not of uniform size, the uniformly light-emitting of light guide plate 2 can be made, reflectance coating 3 is can be by its back side
The slide of reflection is produced, the purposes of reflectance coating 3 is that the light for exposing bottom surface is reflected back in light guide plate 2, for improving light
Service efficiency, diffusion barrier 4 primarily serves the effect of amendment diffusion angle in the structure of backlight 10, can increase light radiation area
Greatly, but the luminous intensity of unit area is reduction of, that is, lowers briliancy, after illuminating source spreads through diffusion material, face can be become
Product is bigger, and the uniformity is preferable, 2 secondary light sources of chroma stability, and the effect with diffusing light, i.e. light can dissipate on its surface
Penetrate, uniformly disseminate out by light is soft, bright enhancement film 5 be in transparent extraordinary pet sheet face, using acrylic resin,
The optical thin film of one layer of homogeneous prism pattern of precise forming, is assembled in before backlight 10, the light that light source is sent to
Display device user direction is assembled, and can improve front face brightness, and unemployed light outside visual angle, according to reflecting again for light
Effect is recycled, and is assembled with optimal angle.
The present invention is bonded with thermal conductive silicon lipid layer 8 in the tight of backlight body 1, and at the top of thermal conductive silicon lipid layer 8
Fin 9 is provided with, air is the non-conductor of heat, heat can be hindered to the conduction of fin 9, by setting thermal conductive silicon lipid layer
8, make the conduction of heat more smooth rapid, splintery aluminium alloy or copper heat spreader 9, increasing heat radiation area, acceleration heat transfer,
Heat will not be made to be gathered in backlight, extend backlight service life.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention's
Within protection domain.
Claims (4)
1. a kind of backlight with radiator structure, including backlight body（1）, it is characterised in that the backlight body（1）
Including light guide plate（2）, the light guide plate（2）Side be provided with backlight（10）, the light guide plate（2）Bottom be brought into close contact
There is reflectance coating（3）, the light guide plate（2）Tight be fitted with lower diffusion barrier（4）, the lower diffusion barrier（4）Top it is tight
It is close to be fitted with bright enhancement film（5）, the bright enhancement film（5）Tight be fitted with diffusion barrier（6）, the light guide plate（2）Side
Face is provided with light-shielding sheet（7）, the backlight body（1）Tight be bonded with thermal conductive silicon lipid layer（8）, the heat-conducting silicone grease
Layer（8）Top be provided with fin（9）.
2. a kind of backlight with radiator structure according to claim 1, it is characterised in that the thermal conductive silicon lipid layer
（8）It is made for heat-conducting silicone grease.
3. a kind of backlight with radiator structure according to claim 1, it is characterised in that the fin（9）For
Aluminium alloy is made, the fin（9）Be shaped as splintery.
4. a kind of backlight with radiator structure according to claim 1, it is characterised in that the light-shielding sheet（7）'s
Quantity is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710716920.7A CN107329323A (en) | 2017-08-21 | 2017-08-21 | A kind of backlight with radiator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710716920.7A CN107329323A (en) | 2017-08-21 | 2017-08-21 | A kind of backlight with radiator structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107329323A true CN107329323A (en) | 2017-11-07 |
Family
ID=60228082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710716920.7A Pending CN107329323A (en) | 2017-08-21 | 2017-08-21 | A kind of backlight with radiator structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107329323A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113660772A (en) * | 2021-09-02 | 2021-11-16 | 张家港润盛科技材料有限公司 | High-strength aluminum alloy substrate structure for manufacturing backlight plate and processing method thereof |
-
2017
- 2017-08-21 CN CN201710716920.7A patent/CN107329323A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113660772A (en) * | 2021-09-02 | 2021-11-16 | 张家港润盛科技材料有限公司 | High-strength aluminum alloy substrate structure for manufacturing backlight plate and processing method thereof |
| CN113660772B (en) * | 2021-09-02 | 2024-06-11 | 张家港润盛科技材料有限公司 | High-strength aluminum alloy substrate structure for manufacturing backlight plate and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171107 |
|
| WD01 | Invention patent application deemed withdrawn after publication |