CN106773304A - A kind of high-heat-dispersion LED backlight - Google Patents
A kind of high-heat-dispersion LED backlight Download PDFInfo
- Publication number
- CN106773304A CN106773304A CN201611259009.XA CN201611259009A CN106773304A CN 106773304 A CN106773304 A CN 106773304A CN 201611259009 A CN201611259009 A CN 201611259009A CN 106773304 A CN106773304 A CN 106773304A
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- CN
- China
- Prior art keywords
- bar
- heat
- reflecting plate
- heat conduction
- led
- 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.)
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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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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 belongs to back light source technique field, specifically related to a kind of high-heat-dispersion LED backlight, including diffusion barrier, light guide plate and reflectance coating, the side of light guide plate is provided with LED light bar, LED light bar outside is provided with U-shaped reflecting plate, one end connection diffusion barrier of reflecting plate, the other end connects reflectance coating, post black double-sided glue in junction, raised line is provided with the inside of reflecting plate, the top surface of raised line is connected with lamp bar, the two sides of raised line form continuous J-type face with the medial surface of reflecting plate respectively, the lateral surface of reflecting plate is provided with the heat conduction bar one of N number of J-type, one end of the linear of heat conduction bar one extends to the opposite side relative with LED light bar；Beneficial effect is uniform radiating, it is to avoid localized hyperthermia, is conducive to increasing the life-span of LED, it is to avoid backlight part is bad caused by high temperature.
Description
Technical field
The invention belongs to back light source technique field, and in particular to a kind of high-heat-dispersion LED backlight.
Background technology
Backlight is to provide the light source of panel of LCD, with continuing to develop for lcd technology, liquid crystal display
The application field of device particularly colour liquid crystal display device is also constantly being widened, and liquid crystal display is the display device of non-luminescent,
The function of display must be can be only achieved with backlight, the quality of backlight performance can directly affect the imaging matter of liquid crystal display
Amount.
Small-medium size LED backlight selects the design of LED light bar list short side for reduces cost, while in order to ensure light
Brightness requirement, LED is relatively concentrated in the layout of short side, and the heat of short side can be caused to raise rapidly when LED is lighted,
If heat can not be distributed by effective approach, LED temperature can be made to exceed the scope for using, cause LED luminance to reduce
Shorten with service life, backlight source temperature is raised can also cause backlight part bad, such as guide-lighting slab warping, optical film material fold
The problems such as.
The content of the invention
It is uniform that goal of the invention of the invention is to provide a kind of radiating, it is to avoid the high-heat-dispersion LED backlight of localized hyperthermia.
In order to realize above goal of the invention, the invention provides a kind of high-heat-dispersion LED backlight, including diffusion barrier, leaded light
Plate and reflectance coating, the side of light guide plate are provided with LED light bar, and LED light bar outside is provided with U-shaped reflecting plate, and one end of reflecting plate connects
Diffusion barrier is connect, other end connection reflectance coating, junction is posted black double-sided glue, raised line is provided with the inside of reflecting plate, raised line
Top surface is connected with lamp bar, and the two sides of raised line form continuous J-type face with the medial surface of reflecting plate respectively, outside reflecting plate
Side is provided with the heat conduction bar one of N number of J-type, and one end of the linear of heat conduction bar one extends to the opposite side relative with LED light bar.
Used as a modification of the present invention, light guide plate is respectively arranged at the two ends with a heat conduction bar two, the one end of heat conduction bar two connection
One end of LED light bar, the other end extends to the opposite side relative with LED.
Used as a modification of the present invention, the heat conduction bar one is bonding jumper.
Used as a modification of the present invention, the heat conduction bar two is bonding jumper.
Used as a modification of the present invention, the bottom surface of the light guide plate is printed with the site of grid arrangement.
Used as a modification of the present invention, the heat conduction bar one is aluminum strip or copper bar.
Used as a modification of the present invention, the heat conduction bar two is aluminum strip or copper bar.
The invention discloses a kind of high-heat-dispersion LED backlight, beneficial effect is uniform radiating, it is to avoid localized hyperthermia, favorably
In the life-span for increasing LED, it is to avoid backlight part is bad caused by high temperature.
Brief description of the drawings
Fig. 1 is a kind of structural representation of high-heat-dispersion LED backlight of the invention.
Specific embodiment
Specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.
A kind of high-heat-dispersion LED backlight shown in Fig. 1, including diffusion barrier 1, light guide plate 2 and reflectance coating 3, the one of light guide plate 2
Side is provided with LED light bar 4, and the outside of LED light bar 4 is provided with U-shaped reflecting plate 5, and one end connection diffusion barrier 1 of reflecting plate 5, the other end connects
Reflectance coating 3 is connect, black double-sided glue is posted in junction, and the inner side of reflecting plate 5 is provided with raised line 6, and top surface and the lamp bar of raised line 6 coordinate
Connection, the two sides of raised line 6 form continuous J-type face with the medial surface of reflecting plate 5 respectively, and the lateral surface of reflecting plate is provided with N number of J
The heat conduction bar 1 of type, one end of the linear of heat conduction bar 1 extends to the opposite side relative with LED light bar 4.The heat conduction bar 1
It is bonding jumper, it is preferred that the heat conduction bar 1 is aluminum strip or copper bar.This design can make reflecting plate directly contact LED
Bar, by heat derives, while avoiding blocking the light for injecting light guide plate, heat conduction bar 1 derives heat from reflecting plate, realizes equal
Even radiating, it is to avoid localized hyperthermia.
Light guide plate 2 is respectively arranged at the two ends with a heat conduction bar 28, and the one end of heat conduction bar 28 connects one end of LED light bar 4, another
End extends to the opposite side relative with LED.The heat conduction bar 28 is bonding jumper, it is preferred that the heat conduction bar two is aluminum strip or copper
Bar.Heat conduction bar two strengthens radiating effect,
The bottom surface of the light guide plate 2 is printed with the site of grid arrangement.
The preferred embodiment of the present invention is the foregoing is only, is not intended to limit the invention, it is all in spirit of the invention
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (7)
1. a kind of high-heat-dispersion LED backlight, it is characterised in that：Including diffusion barrier, light guide plate and reflectance coating, the side of light guide plate sets
There is LED light bar, LED light bar outside is provided with U-shaped reflecting plate, and one end connection diffusion barrier of reflecting plate, the other end connects reflectance coating,
Black double-sided glue is posted in junction, and raised line is provided with the inside of reflecting plate, and top surface and the lamp bar of raised line are connected, and the two of raised line
Side forms continuous J-type face with the medial surface of reflecting plate respectively, and the lateral surface of reflecting plate is provided with the heat conduction bar one of N number of J-type, leads
One end of the linear of hot bar one extends to the opposite side relative with LED light bar.
2. a kind of high-heat-dispersion LED backlight according to claim 1, it is characterised in that：Light guide plate is respectively arranged at the two ends with one
Individual heat conduction bar two, one end of heat conduction bar two connects one end of LED light bar, and the other end extends to the opposite side relative with LED.
3. a kind of high-heat-dispersion LED backlight according to claim 1, it is characterised in that：The heat conduction bar one is bonding jumper.
4. a kind of high-heat-dispersion LED backlight according to claim 2, it is characterised in that：The heat conduction bar two is bonding jumper.
5. a kind of high-heat-dispersion LED backlight according to claim 1, it is characterised in that：The bottom surface printing of the light guide plate
There is the site that grid is arranged.
6. a kind of high-heat-dispersion LED backlight according to claim 1, it is characterised in that：The heat conduction bar one be aluminum strip or
Copper bar.
7. a kind of high-heat-dispersion LED backlight according to claim 2, it is characterised in that：The heat conduction bar two be aluminum strip or
Copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259009.XA CN106773304A (en) | 2016-12-30 | 2016-12-30 | A kind of high-heat-dispersion LED backlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259009.XA CN106773304A (en) | 2016-12-30 | 2016-12-30 | A kind of high-heat-dispersion LED backlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106773304A true CN106773304A (en) | 2017-05-31 |
Family
ID=58954671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611259009.XA Pending CN106773304A (en) | 2016-12-30 | 2016-12-30 | A kind of high-heat-dispersion LED backlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106773304A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505773A (en) * | 2017-09-26 | 2017-12-22 | 京东方科技集团股份有限公司 | Backlight module and display device |
-
2016
- 2016-12-30 CN CN201611259009.XA patent/CN106773304A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505773A (en) * | 2017-09-26 | 2017-12-22 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN107505773B (en) * | 2017-09-26 | 2021-01-26 | 京东方科技集团股份有限公司 | Backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |