CN104896370B - A kind of LED backlight mould group - Google Patents
A kind of LED backlight mould group Download PDFInfo
- Publication number
- CN104896370B CN104896370B CN201510290195.2A CN201510290195A CN104896370B CN 104896370 B CN104896370 B CN 104896370B CN 201510290195 A CN201510290195 A CN 201510290195A CN 104896370 B CN104896370 B CN 104896370B
- Authority
- CN
- China
- Prior art keywords
- backboard
- led light
- side wall
- light bar
- fixed
- 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
Links
- 238000005452 bending Methods 0.000 claims abstract description 16
- 230000017525 heat dissipation Effects 0.000 claims abstract description 6
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 239000006185 dispersion Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 11
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention discloses a kind of LED backlight mould group, it include: backboard, LED light bar and the fixation device being installed on LED light bar on backboard, wherein, backboard includes the side wall of a bottom surface, an incident side, it is equipped with the bending edges at a right angle on the side wall, side wall, right-angle folding crimp and the bottom surface of the backboard form an accommodating chamber, which, which is used to that device will be fixed, is fixed on backboard.The present invention is by realizing that LED light bar is fixed on backboard by fixed device, it is first that LED light bar is fixed on the securing means, fixed device is pushed into the accommodating chamber on backboard again, it not only increases the installation effectiveness of LED light bar and is able to achieve the Ke Kuaisugenghuan of LED light bar, in addition, since lamp bar is attached on the fixation device of good heat dispersion performance, and the heat dissipation performance of mould group is improved, to improve the reliability of product.
Description
Technical field
The present invention relates to LCD backlight mould group field more particularly to a kind of side entering types for being convenient for changing LED light bar
LED backlight mould group.
Background technique
In recent years, LED (Light Emitting Diode, light emitting diode) is because its is pollution-free, color rendering is good, energy saving etc.
Advantage is applied to lighting area more, shows in equipment application field in LCD TV, laptop computer displays etc..Currently,
Side entering type LED is widely used in the design of backlight module.
As shown in Figure 1, side entering-type LED backlight mould group 10 includes: glue frame 11, optical diaphragm 12, light guide plate 13, reflector plate
14, backboard 15 and LED light bar 16；Wherein LED light bar 16 is located on long side or the short side of LED backlight mould group, and LED light bar 16 connects
In the long side of backboard 15, LED light bar 16 is fixed on backboard 15 by a metal fin 151 (as shown in Figures 2 and 3),
By the light source that LED light bar 16 is issued, and then light source needed for liquid crystal display panel is provided.
In available liquid crystal back light model setting technology, the LED light bar of side entrance back module generally leans on sticking double faced adhesive tape or uses spiral shell
Nail is fixed on heat dissipation metal on piece, and shown in Fig. 2 is to be shown using the fixed LED light bar of sticking double faced adhesive tape, Fig. 3 using screw
Fixed LED light bar.
It is illustrated in figure 2 using sticking double faced adhesive tape LED light bar, LED light bar 16 is fixed on heat dissipation metal with double-sided adhesive 20
On piece 151, metal fin 151 is fixed on backboard 15.In assembling, needs carefully to be aligned backboard marking line note and pay LED
Lamp bar will cause light leakage phenomena to avoid lamp bar offsets in height, meanwhile, to avoid goods, materials and equipments from wasting, LED light is carried out when can only assemble
Item attaches, and cannot pay lamp bar note preprocessing, greatly affected packaging efficiency.
When LED light bar occurs bad, need to be disassembled against installation procedure, staff must dismantle front frame and face first
LED light bar is finally separated backboard by plate, then dismantle glue frame, optical diaphragm, light guide plate, reflector plate, then to this LED light bar into
Row replacement, the especially dismounting of LED light bar need to be wiped off double-sided adhesive with tool, then replace LED light bar and reinstall, non-
It is often inconvenient, it not only affects production efficiency and has an effect on maintenance efficiency.
Summary of the invention
In order to solve problems in the prior art, the present invention provides a kind of backlight module for being convenient for changing LED light bar, the mould group
It include: backboard, LED light bar and the fixation device being installed on LED light bar on backboard, wherein backboard enters including a bottom surface, one
The side wall of light side is equipped with the bending edges at a right angle on the side wall, and side wall, right-angle folding crimp and the bottom surface of the backboard are formed
One accommodating chamber, which, which is used to that device will be fixed, is fixed on backboard.
Further, the bending edges include and the top margin that with the side wall connect parallel with the bottom surface, Yi Jiyu
The parallel side of the side wall；In the fixed device, one groove, the side of the size of the groove and the bending edges are set
Size match, when the fixation device is pushed into accommodating chamber, the groove accommodates the side of the bending edges；
Further, the backboard further includes a postive stop baffle and a limit hole, and the postive stop baffle and limit hole are set respectively
At the both ends of the side wall of the incident side；
Further, the fixation device is additionally provided with a positioning hole, and the fixed device is pushed into the accommodating chamber, when
When the fixation device is connected to the postive stop baffle of the side wall, the limit hole, the location hole for fixing device overlap；
Further, the fixed device is in lengthwise shape, and the figure in section is rectangle, circle, ellipse or trapezoidal；
Further, the material of the fixation device is the metal material that aluminium sheet or aluminium alloy have heat dissipation performance.
LED light bar is attached on the securing means the utility model has the advantages that the present invention is logical, the groove structure of fixed device can be with back
The bending edges of plate match, and make the installation of LED light bar that need not also go to be aligned marking line repeatedly again, but will directly be fixed with LED
In the accommodating chamber that the fixation device of lamp bar is inserted into the bending edges of backboard and the side wall of backboard and bottom surface is formed, extremely limited when abutting
When baffle, then device and backboard will be fixed and use a fastened by screw.It not only increases installation effectiveness and is able to achieve lamp bar
It is Ke Kuaisugenghuan, in addition, since lamp bar is attached on the sheet metal of good heat dispersion performance, and improved the thermal diffusivity of mould group
Can, to improve the reliability of product.
Detailed description of the invention
Fig. 1 is the decomposition texture schematic diagram of existing LED backlight mould group；
Fig. 2 is the structural schematic diagram of existing LED light bar bonding method；
Fig. 3 is the structural schematic diagram of existing LED light bar screw fixation method；
Fig. 4 is the decomposition texture schematic diagram of LED backlight mould group of the present invention；
Fig. 5 is the structural schematic diagram of backboard of the present invention；
Fig. 6 is the rearview of the side wall of the incident side of backboard of the present invention；
Fig. 7 is the schematic diagram of the fixed device of the present invention；
Fig. 8 is the main view of LED light bar of the present invention；
Fig. 9 is the perspective view that LED light bar of the present invention is assemblied in fixed device；
Figure 10 is the perspective view that the fixed device of the present invention is mounted on backboard.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate
It the present invention rather than limits the scope of the invention, after the present invention has been read, those skilled in the art are to of the invention each
The modification of kind equivalent form falls within the application range as defined in the appended claims.
Fig. 4 show the structural decomposition diagram of LED backlight mould group of the present invention, LED backlight mould group 40 include: glue frame 41,
Optical diaphragm 42, light guide plate 43, reflector plate 44, backboard 45, LED light bar 46 and connection LED light bar 46 and backboard 45 one
Fixed device 47 (as shown in Figure 7), glue frame 41 is sequentially by optical diaphragm 42, light guide plate 43, reflector plate 44 and 45 groups of backboard
It is combined, LED light bar 46 passes through fixed device 47 and is fixedly connected on the upper of backboard 45, by light-emitting diodes in LED light bar 46
The light source that pipe is issued, and then light source needed for offer liquid crystal display panel.
It is as shown in Figure 5 and Figure 6 the structural schematic diagram of backboard 45, which includes: a bottom surface 450, two long side side walls
451, the side wall 453 of an incident side and a short side side wall 452；Wherein, a limit is equipped in the end of the side wall of incident side 453
Baffle 455 and limit hole 456, postive stop baffle 455 and limit hole 456 are respectively provided at the both ends of side wall 453；In the side of incident side
Wall 453 is equipped with the bending edges 454 at a right angle, which includes one parallel with bottom surface 450 and connect with side wall 453
Top margin 45402 and the side 45401 parallel with side wall 453；Side wall 453, right-angle folding crimp 454 and the bottom surface 450 of backboard
An accommodating chamber 45400 is formed, which, which is used to that device 47 will be fixed, is fixed on backboard.
It is illustrated in figure 7 the structural schematic diagram of fixed device 47, which is in lengthwise shape, and sectional view can be with
For rectangle, circle, ellipse, trapezoidal, prismatic shapes.The fixation device 47 includes a groove 471 and a positioning hole
470.Wherein, the size of the side 45401 of the size of groove 471 and bending edges matches, and fixed device 47 is pushed into accommodating chamber
When, the groove 471 of fixed device accommodates the side 45401 of bending edges, and when being pushed into postive stop baffle 455, fixed device 47 is determined
Position hole 470 is overlapped with the limit hole 456.The material of the fixation device 47 is that aluminium sheet or aluminium alloy etc. have preferable thermal diffusivity
The metal material of energy, for fixing LED light bar 46.
It is illustrated in figure 8 the structural schematic diagram of LED light bar, LED light bar 46 is equipped with several 461 Hes of Light-emitting diode LED
The fixed plate 462 of fixed Light-emitting diode LED 461, the fixed plate 462 are a printed circuit board.
Fig. 9 to Figure 10 is that LED light bar is assemblied in the structural schematic diagram of backboard, when assembling, is first passed through LED lamp bar 46
Double-sided adhesive 48 is pasted on fixed device 47, then the fixation device 47 for being fixed with LED light bar is pushed into side wall, right angle by backboard
In the accommodating chamber that bending edges and bottom surface are formed, because of the size phase of the side of the size and bending edges of the groove of fixed device
Match, when fixed device 47 is pushed into accommodating chamber, the groove of fixed device accommodates the side of bending edges, and pushing hard fixed device 47 makes
The postive stop baffle 455 that device 47 is connected to side wall must be fixed, when fixed device 47 is connected to the postive stop baffle 455 of side wall, side
The location hole coincidence of the limit hole 456 of wall 453, fixed device 47 is carried out closely solid with the hole that a positioning screw 50 insertion is overlapped
It is fixed.
LED light bar is first fixed on fixation by realizing that LED light bar is fixed on backboard by fixed device by the present invention
On device, then fixed device is pushed into the accommodating chamber on backboard, not only increases the installation effectiveness of LED light bar and can be real
Existing LED light bar can be changed quickly, in addition, since lamp bar is attached on the fixation device of good heat dispersion performance, and improve mould
The heat dissipation performance of group, to improve the reliability of product.
Claims (5)
1. a kind of LED backlight mould group, comprising: backboard, LED light bar and LED light bar is installed on the fixation device on backboard,
In, on the securing means by sticking double faced adhesive tape, backboard includes the side wall of a bottom surface, an incident side to LED light bar, on the side wall
Bending edges equipped with a right angle, side wall, right-angle folding crimp and the bottom surface of the backboard form an accommodating chamber, which is used to
Fixed device is fixed on backboard；The backboard further includes a postive stop baffle and a limit hole, the postive stop baffle and limit
Hole is respectively provided at the both ends of the side wall of the incident side, the bending edges include one it is parallel with the bottom surface and with the side wall
The top margin of connection, and the side parallel with the side wall；One groove is set in the fixed device, is filled when by described fixing
When setting push-in accommodating chamber, the groove accommodates the side of the bending edges.
2. a kind of LED backlight mould group according to claim 1, it is characterised in that: the size of the groove and the folding
The size of the side of crimp matches.
3. a kind of LED backlight mould group according to claim 1, it is characterised in that: the fixation device is additionally provided with centainly
Position hole, by the fixed device push-in accommodating chamber, when the fixation device is connected to the postive stop baffle of the side wall,
The location hole of the limit hole, fixed device overlaps.
4. a kind of LED backlight mould group according to claim 1, it is characterised in that: the fixed device is in lengthwise shape, section
The figure in face is rectangle, circle, ellipse or trapezoidal.
5. a kind of LED backlight mould group according to claim 1, it is characterised in that: the material of the fixation device is aluminium
Plate or aluminium alloy have the metal material of heat dissipation performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510290195.2A CN104896370B (en) | 2015-05-29 | 2015-05-29 | A kind of LED backlight mould group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510290195.2A CN104896370B (en) | 2015-05-29 | 2015-05-29 | A kind of LED backlight mould group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104896370A CN104896370A (en) | 2015-09-09 |
| CN104896370B true CN104896370B (en) | 2019-01-04 |
Family
ID=54029206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510290195.2A Expired - Fee Related CN104896370B (en) | 2015-05-29 | 2015-05-29 | A kind of LED backlight mould group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104896370B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773305A (en) * | 2016-12-30 | 2017-05-31 | 奥英光电（苏州）有限公司 | A kind of guide-lighting board fixer |
| CN109884816B (en) * | 2019-04-25 | 2024-03-29 | 重庆惠科金扬科技有限公司 | Backlight module assembly and display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563469A (en) * | 2012-02-17 | 2012-07-11 | 友达光电（苏州）有限公司 | Display device and backlight module thereof |
| CN102721011A (en) * | 2012-03-27 | 2012-10-10 | 友达光电股份有限公司 | Support member for supporting light guide plate, and backlight module, display module and display device using the same |
| US20130094241A1 (en) * | 2011-10-12 | 2013-04-18 | Shenzhen China Star Optoelectronics Technology Co, Ltd. | LED Back Light Module and Liquid Crystal Display Device |
| CN203349188U (en) * | 2013-05-27 | 2013-12-18 | 南京中电熊猫液晶显示科技有限公司 | LED lamp strip fixing device and LED backlight module |
| US20140111738A1 (en) * | 2012-09-11 | 2014-04-24 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Edge-lit led backlight module, liquid crystal display device and method for fixing reflection sheet |
-
2015
- 2015-05-29 CN CN201510290195.2A patent/CN104896370B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130094241A1 (en) * | 2011-10-12 | 2013-04-18 | Shenzhen China Star Optoelectronics Technology Co, Ltd. | LED Back Light Module and Liquid Crystal Display Device |
| CN102563469A (en) * | 2012-02-17 | 2012-07-11 | 友达光电（苏州）有限公司 | Display device and backlight module thereof |
| CN102721011A (en) * | 2012-03-27 | 2012-10-10 | 友达光电股份有限公司 | Support member for supporting light guide plate, and backlight module, display module and display device using the same |
| US20140111738A1 (en) * | 2012-09-11 | 2014-04-24 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Edge-lit led backlight module, liquid crystal display device and method for fixing reflection sheet |
| CN203349188U (en) * | 2013-05-27 | 2013-12-18 | 南京中电熊猫液晶显示科技有限公司 | LED lamp strip fixing device and LED backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104896370A (en) | 2015-09-09 |
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