CN107167959A - A kind of LED backlight radiating subassembly, LCDs and intelligent terminal - Google Patents
A kind of LED backlight radiating subassembly, LCDs and intelligent terminal Download PDFInfo
- Publication number
- CN107167959A CN107167959A CN201710294395.4A CN201710294395A CN107167959A CN 107167959 A CN107167959 A CN 107167959A CN 201710294395 A CN201710294395 A CN 201710294395A CN 107167959 A CN107167959 A CN 107167959A
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- China
- Prior art keywords
- fpc
- led
- radiating subassembly
- led backlight
- glue
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- 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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- 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)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of LED backlight radiating subassembly, LCDs and intelligent terminal, including：Glue frame；By reflecting the reflector plate that two-sided glue sticking is arranged on the back side of the glue frame, and positive light guide plate, diffusion sheet, lower anti-dazzling screen, upper brightening piece and the shading glue of the glue frame are successively set on from bottom to up；Also include bonding to be arranged in the glue frame and be directed at the entering light region of the light guide plate for luminous FPC components；LED is provided with the FPC components front；Bonding is provided with graphite flake on the back side of the FPC components.The perfect radiating defect of highlighted LED backlight, also solves backlight reliability and causes the problem of mura hidden danger occurs in backlight because LED amount of localized heat is too high in the present invention.
Description
Technical field
The present invention relates to LCDs technical field, more particularly to a kind of LED backlight radiating subassembly, liquid crystal display
Screen and intelligent terminal.
Background technology
In recent years, with LCD（Liquid Crystal Display, i.e. liquid crystal display）Gradually ripe, the warp in market
Ji level is improved constantly, requirement more and more higher of the user to product quality.The high performance of back light source technique, such as high brightness,
Cost degradation, low energy consumption, lightening extremely people concern, and then small size, portable high-performance backlight source turn into development
LCD important topic.
As shown in figure 1, its confined explosion's structural representation for LED backlight module in the prior art.LED backlight module bag
Include：Glue frame 10, and be successively set on from bottom to up the positive light guide plate 11 of the glue frame 10, diffusion sheet 20, lower anti-dazzling screen 30,
Upper brightening piece 40 and shading glue 50；Also include the entering light area that bonding was arranged in the glue frame 10 and be aligned the light guide plate 200
Domain is used for luminous FPC components 60.Specifically, the FPC components 60 specifically include and are fixed on glue frame 10 by FPC double faced adhesive tapes 63
On FPC plates 61, and multiple LEDs 62 being arranged on the FPC plates 61.In namely described FPC components 60 from bottom to up
It is followed successively by FPC double faced adhesive tapes 63, LED 62 and FPC plates 61.
Because the power ratio of present LED is higher, and there is certain energy to discharge in the form of heat, and backlight is to warm
Reliability requires stricter, and pleat is produced in terms of crossing heat affecting circuit components performance, the luminous efficiency for reducing LED, membrane material
Wrinkle phenomenon, causes backlight mura（It is uneven）Bad, backlight local temperature overheating.Produced when module does degradation
Raw liquid crystal job insecurity phenomenon；So the LED backlight product of exploitation design now, the problem of to be faced one is important
It is exactly heat dissipation problem.Exactly because LED backlight module 62 radiating effects of LED as shown in Figure 1 are not good, circuit elements are have impact on
Buckling phenomena is produced in terms of device performance, the luminous efficiency for reducing LED, membrane material, backlight mura is caused（It is uneven）It is bad
The problems such as.
Therefore, prior art has yet to be improved and developed.
The content of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of LED backlight radiating subassembly, liquid crystal
Display screen and intelligent terminal, it is intended to solve backlight module in the prior art and lack heat sinking function, cause backlight mura hidden danger occur, carry on the back
The defect of light source local temperature overheat.
Technical scheme is as follows：
A kind of LED backlight radiating subassembly, wherein, including：Glue frame；The back side of the glue frame is arranged on by reflecting two-sided glue sticking
Reflector plate, and be successively set on positive light guide plate, diffusion sheet, lower anti-dazzling screen, the upper brightening piece of the glue frame from bottom to up
And shading glue；Also include bonding to be arranged in the glue frame and be directed at the entering light region of the light guide plate for luminous FPC groups
Part；LED is provided with the FPC components front；Bonding is provided with graphite flake on the back side of the FPC components.
The LED backlight radiating subassembly, wherein, the FPC components are specifically included to be fixed in glue frame by FPC double faced adhesive tapes
FPC plates, be arranged on multiple LEDs on FPC plates front.
The LED backlight radiating subassembly, wherein, the graphite flake is arranged on the back of the body of FPC plates by heat-conducting double-sided glue sticking
On face.
The LED backlight radiating subassembly, wherein, it is provided with 10-20 LED on the front of the FPC components.
The LED backlight radiating subassembly, wherein, it is provided with 12 LEDs on the front of the FPC components.
The LED backlight radiating subassembly, wherein, the length of the graphite flake is equal to the length of the FPC plates.
The LED backlight radiating subassembly, wherein, the thickness of the graphite flake is 0.1-0.5mm.
A kind of LCDs, wherein, including described LED backlight radiating subassembly.
A kind of intelligent terminal, wherein, including described LCDs.
LED backlight radiating subassembly provided by the present invention, LCDs and intelligent terminal, including：Glue frame；Pass through reflection
Two-sided glue sticking is arranged on the reflector plate at the back side of the glue frame, and is successively set on the positive of the glue frame from bottom to up and leads
Tabula rasa, diffusion sheet, lower anti-dazzling screen, upper brightening piece and shading glue；Also it is arranged in the glue frame and is led described in being aligned including bonding
The entering light region of tabula rasa is used for luminous FPC components；LED is provided with the FPC components front；The back of the body of the FPC components
Bonding is provided with graphite flake on face.The perfect radiating defect of highlighted LED backlight, also solves backlight reliable in the present invention
Property causes the problem of mura hidden danger occurs in backlight because LED amount of localized heat is too high.
Brief description of the drawings
Fig. 1 is confined explosion's structural representation of LED backlight module in the prior art.
Fig. 2 is the partial structural diagram of LED backlight radiating subassembly preferred embodiment of the present invention.
Fig. 3 is the configuration schematic diagram of LED backlight radiating subassembly preferred embodiment of the present invention.
Embodiment
The present invention provides a kind of LED backlight radiating subassembly, LCDs and intelligent terminal, for make the purpose of the present invention,
Technical scheme and effect are clearer, clear and definite, and the present invention is described in more detail below.It should be appreciated that described herein
Specific embodiment only to explain the present invention, is not intended to limit the present invention.
Fig. 2 and Fig. 3 are please also refer to, wherein Fig. 2 is the part of LED backlight radiating subassembly preferred embodiment of the present invention
Structural representation, Fig. 3 is the configuration schematic diagram of LED backlight radiating subassembly preferred embodiment of the present invention.Such as Fig. 2 and figure
Shown in 3, the LED backlight radiating subassembly includes：
Glue frame 100；By reflecting two-sided gluing 200 reflector plates 300 for connecing the back side for being arranged on the glue frame 100, and from it is lower to
On be successively set on positive light guide plate 400, diffusion sheet 500, lower anti-dazzling screen 600, upper brightening piece 700 and the shading of the glue frame
Glue 800；Also include bonding to be arranged in the glue frame 100 and be directed at the entering light region of the light guide plate 400 for luminous FPC
Component 900；LED 920 is provided with the front of FPC components 900；Bonding is provided with stone on the back side of the FPC components 900
Ink sheet 1000.
LED backlight radiating subassembly described in the embodiment of the present invention, the backlight module phase with prior art shown in Fig. 1
Than with following difference：
In existing LED backlight module as shown in Figure 1, in FPC components 60, LED 62 is provided on the back side of FPC plates 61,
This is conventional design of the prior art；
But in the LED backlight radiating subassembly as described in Fig. 2 and Fig. 3, LED 920 is provided with the front of FPC components 900；
It is bonded on the back side of the FPC components 900 and is provided with graphite flake 1000, that is, employ lamp bar and is instead filled and in FPC components 900
The back side increase graphite flake 1000 is set, the heat that LED 920 is lighted passes sequentially through copper sheet and ink sheet on FPC components 900
1000 and dissipate outside.
It is preferred that, as shown in Figures 2 and 3, the FPC components 900 are specifically included is fixed on glue by FPC double faced adhesive tapes 930
FPC plates 910 on frame 100, are arranged on multiple LEDs 920 on the FPC plates front.With lamp on the FPC components of prior art
The set-up mode of bar is compared, and the anti-mode filled of lamp bar is employed in the present invention.Namely in the prior art in FPC components from it is lower to
On be followed successively by FPC double faced adhesive tapes 63, LED 62 and FPC plates 61（As shown in Figure 1）, and FPC components 900 are from bottom to up in the present invention
It is followed successively by FPC plates 910, LED 920 and FPC double faced adhesive tapes 930（As shown in Figures 2 and 3）.By lamp bar is counter fill after have no effect on the back of the body
The Integral luminous effect of light radiating subassembly, and performance.Preferably, being provided with 10-20 on the front of the FPC components 900
LED 920.More specifically, it is provided with 10-20 LED 920 on the front of the FPC plates 910.Optimal, the FPC plates
12 LEDs 920 are provided with 910 front.
The LED backlight radiating subassembly, wherein, it is provided with 12 LEDs on the front of the FPC components.
Specifically, the graphite flake 1000 is arranged on by heat-conducting double-sided glue sticking on the back side of FPC plates 910.Namely
The heat transfer process of heat produced by LED 920 is the copper sheet that FPC plates 910 are first transmitted to by LED 920, then by FPC plates 910
Copper sheet is transferred to bond plies, and the bond plies transfer heat to graphite flake 1000 again, finally by graphite flake 1000
Outwards radiating.So, the perfect radiating defect of highlighted LED backlight, also solves backlight reliability because of LED amount of localized heat
It is too high and cause the problem of mura hidden danger occurs in backlight.
It is preferred that, as shown in Fig. 2 the length of the graphite flake 1000 is equal to the length of the FPC plates 910；The graphite
The thickness of piece 1000 is 0.1-0.5mm.The specific thickness of the graphite flake 1000 is by FPC components 900, LED 920, and is used for
The thickness of the grade of glue frame 100 of lightguide plate fixing determines, more importantly by how much the number of LED 920 determines.Work as LED
When the number of lamp 920 is more, the heat produced when luminous is more, and the thickness of graphite flake 100 is corresponding will thickness.When LLED lamps 920
Number it is few when, the heat produced when luminous is few, and the thickness of graphite flake 100 is corresponding thinner.
Wherein, the light guide plate 400 that the glue frame 100 is fixed can be made up of multiple guide-lighting blocks.Also doped with scattered in guide-lighting block
Radion so that the most of light for inciding light guide plate is scattered along default direction so that LED backlight described in light dissipates
After hot component, brightness is evenly.Specifically, scattering particles is class Mie scattering particle, its radius is close to or greater than incident light
The wavelength of line, most incident ray can be dissipated in the presence of class Mie scattering particle along the incident direction of light
Penetrate, this phenomenon is referred to as class rice formula scattering.And when incident light is natural light, along light incident direction and its reverse direction
Scattered light be still natural light, will not occur colour cast change.
Based on above-mentioned LED backlight radiating subassembly, present invention also offers a kind of LCDs.The LCDs bag
Include described LED backlight radiating subassembly.
Based on above-mentioned LCDs, present invention also offers a kind of intelligent terminal.The intelligent terminal includes described
LED backlight radiating subassembly or the LCDs.
In summary, LED backlight radiating subassembly provided by the present invention, LCDs and intelligent terminal, including：Glue
Frame；By reflecting the reflector plate that two-sided glue sticking is arranged on the back side of the glue frame, and the glue is successively set on from bottom to up
Positive light guide plate, diffusion sheet, lower anti-dazzling screen, upper brightening piece and the shading glue of frame；Also it is arranged on including bonding in the glue frame
And it is directed at the FPC components that the entering light region of the light guide plate is used to light；LED is provided with the FPC components front；It is described
Bonding is provided with graphite flake on the back side of FPC components.The perfect radiating defect of highlighted LED backlight, is also solved in the present invention
Backlight reliability because LED amount of localized heat is too high causes the problem of mura hidden danger occurs in backlight.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (9)
1. a kind of LED backlight radiating subassembly, it is characterised in that including：Glue frame；The glue is arranged on by reflecting two-sided glue sticking
The reflector plate at the back side of frame, and be successively set on from bottom to up the positive light guide plate of the glue frame, diffusion sheet, lower anti-dazzling screen,
Upper brightening piece and shading glue；Also include bonding to be arranged in the glue frame and be directed at the entering light region of the light guide plate for lighting
FPC components；LED is provided with the FPC components front；Bonding is provided with graphite flake on the back side of the FPC components.
2. LED backlight radiating subassembly according to claim 1, it is characterised in that the FPC components are specifically included by FPC
Double faced adhesive tape is fixed on the FPC plates in glue frame, is arranged on multiple LEDs on the FPC plates front.
3. LED backlight radiating subassembly according to claim 2, it is characterised in that the graphite flake is gluing by heat-conducting double-sided
Connect and be arranged on the back side of FPC plates.
4. LED backlight radiating subassembly according to claim 1, it is characterised in that be provided with the front of the FPC components
10-20 LED.
5. LED backlight radiating subassembly according to claim 4, it is characterised in that be provided with 12 on the front of the FPC components
Individual LED.
6. LED backlight radiating subassembly according to claim 2, it is characterised in that the length of the graphite flake is equal to the FPC
The length of plate.
7. LED backlight radiating subassembly according to claim 6, it is characterised in that the thickness of the graphite flake is 0.1-
0.5mm。
8. a kind of LCDs, it is characterised in that including the LED backlight radiating subassembly as described in claim any one of 1-7.
9. a kind of intelligent terminal, it is characterised in that including LCDs as claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710294395.4A CN107167959A (en) | 2017-04-28 | 2017-04-28 | A kind of LED backlight radiating subassembly, LCDs and intelligent terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710294395.4A CN107167959A (en) | 2017-04-28 | 2017-04-28 | A kind of LED backlight radiating subassembly, LCDs and intelligent terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107167959A true CN107167959A (en) | 2017-09-15 |
Family
ID=59813404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710294395.4A Pending CN107167959A (en) | 2017-04-28 | 2017-04-28 | A kind of LED backlight radiating subassembly, LCDs and intelligent terminal |
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| Country | Link |
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| CN (1) | CN107167959A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111583783A (en) * | 2020-05-20 | 2020-08-25 | 四川京龙光电科技有限公司 | Backlight, display screen and mobile device of glue iron integration |
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| CN201680234U (en) * | 2010-03-23 | 2010-12-22 | 深圳华映显示科技有限公司 | Backlight module |
| US20120120633A1 (en) * | 2007-09-28 | 2012-05-17 | Apple Inc. | Display system with distributed led backlight |
| CN102799023A (en) * | 2012-09-11 | 2012-11-28 | 深圳市华星光电技术有限公司 | Liquid crystal display (LCD) device |
| CN103176303A (en) * | 2011-12-23 | 2013-06-26 | 三星电子株式会社 | Display module and display apparatus having the same |
| CN206115089U (en) * | 2016-08-09 | 2017-04-19 | 信利半导体有限公司 | Backlight and liquid crystal display module |
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2017
- 2017-04-28 CN CN201710294395.4A patent/CN107167959A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120120633A1 (en) * | 2007-09-28 | 2012-05-17 | Apple Inc. | Display system with distributed led backlight |
| CN201680234U (en) * | 2010-03-23 | 2010-12-22 | 深圳华映显示科技有限公司 | Backlight module |
| CN103176303A (en) * | 2011-12-23 | 2013-06-26 | 三星电子株式会社 | Display module and display apparatus having the same |
| CN102799023A (en) * | 2012-09-11 | 2012-11-28 | 深圳市华星光电技术有限公司 | Liquid crystal display (LCD) device |
| CN206115089U (en) * | 2016-08-09 | 2017-04-19 | 信利半导体有限公司 | Backlight and liquid crystal display module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111583783A (en) * | 2020-05-20 | 2020-08-25 | 四川京龙光电科技有限公司 | Backlight, display screen and mobile device of glue iron integration |
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Application publication date: 20170915 |