CN204806013U - Energy -saving liquid crystal display backlight unit - Google Patents
Energy -saving liquid crystal display backlight unit Download PDFInfo
- Publication number
- CN204806013U CN204806013U CN201520498155.2U CN201520498155U CN204806013U CN 204806013 U CN204806013 U CN 204806013U CN 201520498155 U CN201520498155 U CN 201520498155U CN 204806013 U CN204806013 U CN 204806013U
- Authority
- CN
- China
- Prior art keywords
- guide plate
- light guide
- led module
- aluminium base
- 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.)
- Expired - Fee Related
Links
Landscapes
- Planar Illumination Modules (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model provides an energy -saving liquid crystal display backlight unit, it is main including the aluminium base board of PCB, the light guide plate, the LED module, the light guide plate is the rectangle, 4 end feet of light guide plate are provided with the mounting hole, the LED module sets up in 4 end angles of light guide plate, the LED module is connected with the light modulator, the light guide plate is including a plain noodles, a side is for going into the plain noodles, all the other three side edges set up the black frame of gluing, scribble the black oil layer in the black gluey frame, it sets up with the LED module relatively to go into the plain noodles, the LED module links to each other with the PCB aluminium metal substrate, the aluminium base board of PCB bottom is equipped with heat -conducting metal spare, the utility model discloses simple structure, good heat dissipation can prolong LED module life, and the LED module adopts the parallel connection mode, and luminance is high, voltage is low, can save the electric energy, sets up the black oil layer in the light guide plate side simultaneously, can solve side light leak problem, has overcome among the prior art light guide plate side and has produced bright line and make the light guide plate quality problem of defect appear, and the practicality is strong.
Description
Technical field:
The utility model relates to LCDs field, particularly relates to a kind of energy-saving LCD screen backlight module.
Background technology:
Along with the development of science and technology, the technology of LCDs is more and more higher, computer from before CRT change present LCDs into, itself is not luminous for LCDs, but passive luminescence, so need backlight module to provide light source, LCDs divides from the classification of light source, is CCFL backlight module and LED-backlit module, energy-conservation due to LED, the feature of long service life, current most LCDs all have employed LED-backlit module.
LED semiconductor lighting is as 21 century the most potential green illumination light source, and the advantages such as it has, and luminous efficiency is high, life-span length, energy-conserving and environment-protective, therefore, will become " cake " of emerging industry.LED backlight is one of critical component of display product, and television set, computer and mobile phone etc. all be unable to do without and use backlight.Along with the continuous lifting of display product performance, more and more high to the requirement of backlight, as lightweight, slimming, low power consumption, high brightness, uniform in light emission, low cost etc.Backlight is primarily of light source and light guide plate composition, and light guide plate is born and light source is changed into high brightness and the function of the area source of uniform luminance, and therefore, the qualitative effects of the product confrontation light guide plate of backlight is very big.
LCD screen backlight module heat dispersion of the prior art is poor, often causes LED module easily to damage, the life-span, and the easy light leak in edge makes light guide plate emitting brightness reduce, and makes light guide plate quality occur the problem of defect.
Utility model content:
In order to solve the problem, it is simple that the utility model provides a kind of structure, thermal diffusivity is good, LED module service life can be extended, also have that brightness is high, voltage is low simultaneously, can electric energy be saved, side leakage problem can be solved, overcoming light guide plate side generation bright line in prior art makes light guide plate quality occur the problem of defect, practical technical scheme:
A kind of energy-saving LCD screen backlight module, mainly comprise PCB aluminium base, light guide plate, LED module, light guide plate is rectangular, 4 end pin of light guide plate are provided with installing hole, LED module is arranged at 4 end angles of light guide plate, LED module is connected with light modulator, light guide plate includes exiting surface, a side is incidence surface, its excess-three lateral edge arranges black glue frame, scribbles dirty oil layer in black glue frame, and incidence surface and LED module are oppositely arranged, LED module is connected with PCB aluminium base, is provided with heat-conducting metal pieces bottom PCB aluminium base.
As preferably, the dirty oil layer in black glue frame and light guide plate injection mo(u)lding are simultaneously overall structure, and light guide plate is transparence, and with plastic production, the thickness of dirty oil layer is 5 millimeters-8 millimeters.
As preferably, heat-conducting metal pieces comprises bottom heat-conducting metal pieces and sidepiece heat-conducting metal pieces, and, a high thermal conductivity coefficient glue-line is also set between PCB aluminium base and sidepiece heat-conducting metal pieces.
As preferably, LED module comprises optics cup aperture, LED, optics cup aperture is arranged on PCB aluminium base, positive electrode, negative electrode is provided with at intervals regularly between mutual two optics cup aperture on PCB aluminium base, LED is fixed in optics cup aperture, and the LED after electric connection is relation in parallel each other.
The beneficial effects of the utility model are:
(1) the utility model is provided with black glue frame at the edge of light guide plate, scribbles dirty oil layer, can solve the problem of light guide plate side light leak in black glue frame, overcomes light guide plate side generation bright line in prior art and makes light guide plate quality occur the problem of defect.
(2) LED module, light guide plate are connected with PCB aluminium base by the utility model, PCB aluminium base is provided with heat-conducting metal pieces, heat is derived outside by its sidepiece heat-conducting metal pieces and bottom heat-conducting metal pieces by heat-conducting metal pieces, perfect heat-dissipating, extends LED module service life.
(3) in LED module of the present utility model, the arrangement mode of LED changes into being connected in parallel by singly going here and there arrangement, has the advantage that voltage is low, brightness is high, can save electric energy.
Accompanying drawing illustrates:
Fig. 1 is LED module of the present utility model and light guide plate connection layout;
Fig. 2 is light guide plate three-dimensional structure diagram of the present utility model;
Fig. 3 is light guide plate of the present utility model, LED module and PCB aluminium base johning knot composition;
Fig. 4 is LED modular structure schematic diagram of the present utility model.
Detailed description of the invention:
For making goal of the invention of the present utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
As shown in Figure 1-2, a kind of energy-saving LCD screen backlight module, mainly comprise PCB aluminium base 1, light guide plate 2, LED module 3, light guide plate 2 is rectangular, 4 end pin of light guide plate 2 are provided with installing hole, LED module 3 is arranged at 4 end angles of light guide plate 2, LED module 3 is connected with light modulator 4, light guide plate 2 includes exiting surface 21, a side is incidence surface 22, its excess-three lateral edge arranges black glue frame 23, dirty oil layer 24 is scribbled in black glue frame 23, dirty oil layer 24 in black glue frame 23 is overall structure with light guide plate 2 injection mo(u)lding simultaneously, light guide plate 2 is transparence, with plastic production, the thickness of dirty oil layer 24 is 5 millimeters-8 millimeters.A part for its side is the incidence surface 22 of light to light guide plate 2 of light source, the light of light source injects light guide plate 2 from incidence surface 22, because the dirty oil layer 24 as light guide plate 2 side is overall structure with light guide plate 2 injection mo(u)lding simultaneously, can not in this generation gap, side, thus this side can not light leak, side is avoided to produce bright line, the utility model is provided with black glue frame at the edge of light guide plate, dirty oil layer is scribbled in black glue frame, the problem of light guide plate side light leak can be solved, overcoming light guide plate side generation bright line in prior art makes light guide plate quality occur the problem of defect.
As shown in Figure 3, incidence surface 22 and LED module 3 are oppositely arranged, LED module 3 is connected with PCB aluminium base 1, heat-conducting metal pieces is provided with bottom PCB aluminium base 1, heat-conducting metal pieces comprises bottom heat-conducting metal pieces 11 and sidepiece heat-conducting metal pieces 12, and, one high thermal conductivity coefficient glue-line 13 is also set between PCB aluminium base 1 and sidepiece heat-conducting metal pieces 12, high thermal conductivity coefficient glue-line adopts the colloidal materials with high thermal conductivity to make, there is good thermal conductivity and insulating properties, the heat of LED module 3 passes through, after PCB aluminium base 1, heat-conducting metal pieces is transferred heat to again by high thermal conductivity coefficient glue-line, heat is derived outside by its sidepiece heat-conducting metal 12 and bottom heat-conducting metal pieces 11 by heat-conducting metal pieces.LED module, light guide plate are connected with PCB aluminium base by the utility model, PCB aluminium base is provided with heat-conducting metal pieces, heat is derived outside by its sidepiece heat-conducting metal pieces and bottom heat-conducting metal pieces by heat-conducting metal pieces, perfect heat-dissipating, extends LED module service life.
As shown in Figure 4, LED module 3 comprises optics cup aperture 31, LED 32, optics cup aperture 31 is arranged on PCB aluminium base 1, positive electrode 14, negative electrode 15 is provided with regularly at intervals between mutual two optics cup aperture on PCB aluminium base 1, LED 32 is fixed in optics cup aperture 31, and the LED 32 after electric connection is relation in parallel each other.In LED module of the present utility model, the arrangement mode of LED changes into being connected in parallel by singly going here and there arrangement, has the advantage that voltage is low, brightness is high, can save electric energy.
Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of the utility model patent.
Claims (4)
1. an energy-saving LCD screen backlight module, it is characterized in that: mainly comprise PCB aluminium base (1), light guide plate (2), LED module (3), described light guide plate (2) is rectangular, 4 end pin of described light guide plate (2) are provided with installing hole, described LED module (3) is arranged at 4 end angles of described light guide plate (2), described LED module (3) is connected with light modulator (4), described light guide plate (2) includes exiting surface (21), a side is incidence surface (22), its excess-three lateral edge arranges black glue frame (23), dirty oil layer (24) is scribbled in described black glue frame (23), incidence surface (22) and described LED module (3) are oppositely arranged, described LED module (3) is connected with described PCB aluminium base (1), described PCB aluminium base (1) bottom is provided with heat-conducting metal pieces.
2. the energy-saving LCD screen backlight module of one according to claim 1, it is characterized in that: the dirty oil layer (24) in described black glue frame (23) is overall structure with described light guide plate (2) injection mo(u)lding simultaneously, described light guide plate (2) is transparence, with plastic production, the thickness of described dirty oil layer (24) is 5 millimeters-8 millimeters.
3. the energy-saving LCD screen backlight module of one according to claim 1, it is characterized in that: described heat-conducting metal pieces comprises bottom heat-conducting metal pieces (11) and sidepiece heat-conducting metal pieces (12), further, between described PCB aluminium base (1) and described sidepiece heat-conducting metal pieces (12), a high thermal conductivity coefficient glue-line (13) is also set.
4. the energy-saving LCD screen backlight module of one according to claim 1, it is characterized in that: described LED module (3) comprises optics cup aperture (31), LED (32), described optics cup aperture (31) is arranged on described PCB aluminium base (1), positive electrode (14) is provided with regularly at intervals between mutual two optics cup aperture on described PCB aluminium base (1), negative electrode (15), described LED (32) is fixed in optics cup aperture (31), LED (32) after electric connection is relation in parallel each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520498155.2U CN204806013U (en) | 2015-07-13 | 2015-07-13 | Energy -saving liquid crystal display backlight unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520498155.2U CN204806013U (en) | 2015-07-13 | 2015-07-13 | Energy -saving liquid crystal display backlight unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204806013U true CN204806013U (en) | 2015-11-25 |
Family
ID=54590835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520498155.2U Expired - Fee Related CN204806013U (en) | 2015-07-13 | 2015-07-13 | Energy -saving liquid crystal display backlight unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204806013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180497A (en) * | 2017-07-07 | 2017-09-19 | 深圳易方数码科技股份有限公司 | Pos |
| CN115240535A (en) * | 2022-06-20 | 2022-10-25 | 宁波普瑞均胜汽车电子有限公司 | Display layer for surface of intelligent equipment and display method thereof |
-
2015
- 2015-07-13 CN CN201520498155.2U patent/CN204806013U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180497A (en) * | 2017-07-07 | 2017-09-19 | 深圳易方数码科技股份有限公司 | Pos |
| CN115240535A (en) * | 2022-06-20 | 2022-10-25 | 宁波普瑞均胜汽车电子有限公司 | Display layer for surface of intelligent equipment and display method thereof |
| CN115240535B (en) * | 2022-06-20 | 2024-05-31 | 宁波普瑞均胜汽车电子有限公司 | Display layer for intelligent device surface and display method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103104868B (en) | A kind of LED-backlit module and electronic equipment | |
| CN202403051U (en) | LED (Light-Emitting Diode)lamp bar, backlight module and liquid crystal television | |
| CN204806013U (en) | Energy -saving liquid crystal display backlight unit | |
| CN106405935B (en) | LED light bar applied to ultra-thin ultra-narrow frame liquid crystal display | |
| CN103511991B (en) | The fixed structure of reflector plate in a kind of LED-backlit module | |
| CN202469772U (en) | Direct-light-type backlight source and displaying device | |
| CN210270448U (en) | Backlight structure of high accuracy integration of backlight | |
| CN104913247B (en) | A kind of back light unit of high light coupling efficient | |
| CN201654393U (en) | Direct type ultrathin LED device | |
| US20140071655A1 (en) | Direct Backlight Module | |
| CN217506318U (en) | Backlight lamp strip applied to TV computer display screen | |
| CN206224107U (en) | A kind of backlight module of LCD liquid crystal display screen | |
| CN202228982U (en) | LED component | |
| CN205227024U (en) | Backlight module and display device | |
| CN203363865U (en) | High energy efficiency LED backlight for liquid crystal display | |
| CN204704789U (en) | A kind of heat dissipation LED road lamp | |
| CN207074328U (en) | A kind of backlight for solving the screen dark problem of chamfering comprehensively | |
| CN203533455U (en) | Direct-type LED backlight module light strip fixing structure | |
| CN206258654U (en) | A kind of new LED-backlit module | |
| CN101852369B (en) | Ultrathin LED backlight module | |
| CN201502903U (en) | LED light source structure used for projection equipment | |
| CN206209247U (en) | A kind of high intensity display backlight plate | |
| CN202327844U (en) | Light emitting diode (LED) backlight source | |
| CN208013619U (en) | A kind of high brightness ELED liquid crystal display backlight lamp bars | |
| CN201819073U (en) | Backlight module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20151125 Termination date: 20160713 |