CN100389351C - Back light unit - Google Patents
Back light unit Download PDFInfo
- Publication number
- CN100389351C CN100389351C CNB2006100777449A CN200610077744A CN100389351C CN 100389351 C CN100389351 C CN 100389351C CN B2006100777449 A CNB2006100777449 A CN B2006100777449A CN 200610077744 A CN200610077744 A CN 200610077744A CN 100389351 C CN100389351 C CN 100389351C
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- China
- Prior art keywords
- framed structure
- framework
- chute
- backlight module
- backboard
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Abstract
The present invention provides a backlight module structure which comprises a light source device, an optical membrane, a frame, a sliding slot, an insertion opening, a heat dissipating member and a backboard, wherein the sliding slot of the frame and the insertion opening are used for sliding and inserting the backboard or the optical membrane, and the heat radiating member is arranged outside the frame to dissipating the heat of a backlight module. The backboard is assembled after a lamp tube is arranged from a back side, the lamp tube can be directly replaced from the back side when needs to be replaced, and the optical membrane is directly arranged in the frame from the insertion opening.
Description
Technical field
The present invention relates to a kind of backlight module that is used for, particularly relate to a kind of backlight module with radiating component.
Background technology
Its light source of LCD utilizes kenel can slightly be divided into three kinds of reflective liquid-crystal display (ReflectiveLCD), penetrating LCD (Transmissive LCD) and semi-penetrated semi-reflected liquid crystal displays (Transflective LCD).With penetration or semi-penetrated semi-reflected liquid crystal display is example, it mainly is made of a liquid crystal panel and a backlight module, wherein liquid crystal panel is made up of the liquid crystal layer that two transparency carriers and are disposed between these two transparency carriers, backlight module is then in order to provide liquid crystal panel required area source, so that LCD reaches the effect of demonstration.
Figure 1 shows that the schematic perspective view of existing a kind of liquid crystal display backlight module.Liquid crystal display backlight module 10 is mainly by center (middle bezel) 11; diffuser plate (diffuser plate) and blooming piece (optical film) 12; fluorescent tube 14 (lamp); tube face (lamp block) 13; back of the body frame (backbezel) 15 and reflector (reflecting plate or reflecting sheet) (figure does not show); power source inverter assembly (inverter assembly) 16; and 17 formations of control panel over cap assembly (controlboard assembly).Fluorescent tube 14 is parallel in the tube face 13, is positioned at the top of reflector.Wherein, diffuser plate and blooming piece 12 are disposed at the top of fluorescent tube 14, in order to will evenly being diffused on the panel of LCD by the light that fluorescent tube 14 is launched.Reflector is then in order to being reflected by the light that fluorescent tube 14 is launched.
Because can produce heat during fluorescent tube 14 emission light, and the framework of backlight module 10 is generally enclosed areas, heat is difficult for shedding, and backlight module 10 temperature are improved, and then influences the briliancy performance of backlight module 10.Therefore,, be necessary to provide a kind of framework that is applied to back lighting device, make back lighting device have good cooling mechanism at the shortcoming of above-mentioned prior art.In addition, may also be provided with other not blooming piece of icon in the general backlight module, for example prismatic lens (prism sheet), polaroid (polarizer) etc. are to improve its light utilization or to promote its diffusivity, this is the technology that this field person is familiar with, and does not specify at this.
On the other hand, because each assembly of above-mentioned existing backlight module 10 must stack assembling in regular turn, and is difficult for fixing, increase the degree of difficulty of assembling; Simultaneously, in the process of carrying, easy intraware to backlight module 10, for example fluorescent tube 14 or diffuser plate and blooming piece 12 etc. produce and damage,, whole backlight module 10 one by one will be dismantled after more again assemble if desire is changed the assembly that damages this moment, make the manufacturing maintenance cost and the time of backlight module 10 to reduce, also have in the process of dismounting and assembling and cause other component damage or stained problem.
Summary of the invention
In view of this, according to backlight module of the present invention, can solve heat radiation and assembling complexity and fluorescent tube and change difficult shortcoming.
According to disclosed backlight module, comprise the main structure of framework, this framework has chute and inserts mouth, is easy to assembling and disconnect assembly.
The invention provides a kind of framed structure, be applicable to a backlight module, comprising:
One support body, have two long limit and two minor faces, and respectively be provided with a fluorescent tube fixed part on this two minor face, then corresponding first chute that extends along the length direction on described long limit that respectively is provided with on this two long limit, make the backboard of described backlight module to slip into described framed structure along described first chute at the length direction on described long limit, wherein this fluorescent tube fixed position is in the bottom of two minor faces, and this first chute then is positioned at the hypomere position of this inboard, two long limits.
In addition, the invention provides a kind of backlight modular structure, comprise light supply apparatus, blooming piece, framework, chute and insertion mouth, radiating component, and backboard.The chute of framework and insertion mouth provide backboard or blooming piece to slide and insert and use.Radiating component is disposed at the framework outside, and the backlight module heat radiation is provided.After fluorescent tube was loaded onto by the rear, group went up backboard again, when treating that fluorescent tube is changed, can directly be changed by the rear, and blooming piece was directly put into framework by inserting mouth.
Because framework main structure of the present invention, after fluorescent tube was loaded onto by the rear, group went up backboard again, when treating that fluorescent tube is changed, can directly change, save the dismounting time by the rear, and blooming piece is directly put into main structure by lower opening, do not need center, make assembling easier, can reduce the manufacturing maintenance cost and the time of backlight module, and structure is stronger, be difficult in the process of carrying, to the intraware of backlight module, for example fluorescent tube or blooming piece etc. produce and damage.
According to backlight module of the present invention and assemble method thereof, also can be by the radiating component on the framework, to help heat radiation.
Description of drawings
Fig. 1 is the schematic perspective view of existing a kind of liquid crystal display backlight module;
Fig. 2 is the schematic perspective view of the backlight module of a preferred embodiment of the present invention;
Fig. 3 is the schematic perspective view of the backlight module frame of a preferred embodiment of the present invention.
Fig. 4 is framework of the present invention and backboard assembling synoptic diagram;
Fig. 5 is framework of the present invention and fluorescent tube assembling synoptic diagram;
The chute synoptic diagram that Fig. 6 slips into framework for Fig. 4 in order to backboard to be provided;
Fig. 7 slips into behind the framework groove synoptic diagram in order to stationary backplate for backboard;
Fig. 8 is framework of the present invention and blooming piece assembling synoptic diagram;
Fig. 9 inserts the insertion mouth synoptic diagram of framework for blooming piece is provided on the framework;
Figure 10 is used to provide the chute synoptic diagram that blooming piece slips into framework for Fig. 9;
Figure 11 inserts the groove synoptic diagram that is used for fixing blooming piece behind the framework for blooming piece;
Figure 12 is a framework radiating component synoptic diagram of the present invention.
The main element symbol description:
10 existing backlight module 11 centers
12 diffuser plates and blooming piece 13 tube faces
14 fluorescent tubes, 15 back of the body frames
16 power source inverter assemblies, 17 control panel over cap assemblies
20 backlight module 21 frameworks of the present invention
22 diffuser plates and blooming piece 23 light supply apparatuses
24 backboards, 51 cold-cathode tube decks
52 power source inverter decks, 61 backboard chutes
The groove 81 of 71 stationary backplate inserts mouth
91 radiating components, 111 blooming piece chutes
The 121 fixing grooves of diffuser plate and blooming piece
Embodiment
Fig. 2 illustrate is the schematic perspective view of the backlight module of a preferred embodiment of the present invention.As shown in Figure 2, backlight module 20 structures of the present invention comprise light supply apparatus 23, diffuser plate and blooming piece 22, framework 21, and backboard (back plate) 24.Framework 21 is assembled into backlight module 20 main structures, and after light supply apparatus 23 was loaded onto by the rear, group went up backboard 24, reaches diffuser plate and blooming piece 22 again.Diffuser plate and blooming piece 22 comprise prismatic lens or polaroid.
Framework 21 can be made of the aluminium extruded type support.
Fig. 3 illustrate is the schematic perspective view of the backlight module frame of a preferred embodiment of the present invention.Backlight module 20 main structures are to be assembled by framework 21.This framework can be assembled by four in-line members, or L shapedly adds two in-line members and assemble by one, or is assembled by two L shaped members, or adds an in-line member by a ㄇ font and assemble.
Fig. 4 illustrate is framework of the present invention and backboard assembling synoptic diagram.After light supply apparatus 23 was loaded onto by framework 21 rears, group went up backboard 24 again, and with protection light supply apparatus 23, backboard 24 may also be provided with other not reflector of icon.Light supply apparatus 23 comprises directly-down light source device or side-light type light supply apparatus.Directly-down light source device comprises cold-cathode tube (CCFL, cold cathode fluorescence lamp), outer electrode fluorescent lamp (EEFL, external electrode fluorescence lamp), light emitting diode (LED, or planar light source (lat lamp) light emitting diode); The side-light type light supply apparatus comprises cold-cathode tube, outer electrode fluorescent lamp, or light emitting diode.The side-light type light supply apparatus needs light guide plate (LGP, light guide plate) (figure does not show) light that the side-light type light supply apparatus sends is directed to liquid crystal panel (the liquid crystal panel) below of (figure does not show) from side.The direction that backboard 24 is assembled into framework 21 can be parallel to the long limit or the minor face of framework 21.
Fig. 5 illustrate is the framework and the light supply apparatus assembling synoptic diagram of a preferred embodiment of the present invention.As shown in the figure, light supply apparatus 23 is a cold-cathode tube, and this light supply apparatus 23 is parallel to framework 21 with cold-cathode tube, is beneficial to provide liquid crystal panel light symmetrically and evenly.Illustrate as Fig. 5, except being provided with cold-cathode tube deck 51, and be provided with power source inverter (inverter) (figure does not show) deck 52 on the framework 21 in order to the fixed power source transverter in order to the fixing cold-cathode tube.Each power source inverter can each only be controlled single cold-cathode tube, or can control many cold-cathode tubes simultaneously.
The backboard chute synoptic diagram that Fig. 6 illustrate is slipped into framework for Fig. 4 in order to backboard to be provided.By these backboard chute 61 structures with the assembling backboard, this backboard chute 61 can be arranged at the long limit or the minor face of framework 21, this backboard chute 61 can be made this backboard chute 61 in integrated mode simultaneously in the process of making framework 21, or forms backboard chute 61 at framework 21 in the mode of assembling separately.This backboard chute can be positioned at the two long limits of framework 21 or the hypomere position of two minor face inboards.
Fig. 7 illustrate is for after backboard slips into framework, in order to the groove synoptic diagram of stationary backplate.Groove 71 structures by this stationary backplate are with stationary backplate 24.The groove 71 of this stationary backplate can be arranged at the long limit or the minor face of framework 21, but should be perpendicular to backboard chute 61.The groove 71 of this stationary backplate can be made the groove 71 of this stationary backplate in integrated mode simultaneously in the process of making framework 21, or forms the groove 71 of this stationary backplate in the mode of assembling separately at framework 21.The groove 71 of this stationary backplate should have at least the opening of regional area to be slightly less than the thickness of backboard 24, reaches the purpose of stationary backplate 24 in order to blocking backboard 24.
Fig. 8 illustrate is framework of the present invention and blooming piece assembling synoptic diagram.Framework 21 has the mouth of insertion 81, and this inserts mouth 81 and has the profile of slit, is beneficial to the assembling of diffuser plate and blooming piece 22.This insertion mouth 81 can be made this simultaneously in integrated mode in the process of making framework 21 and insert mouth 81, or forms this insertion mouth 81 at framework 21 in the mode of assembling separately.Insertion mouth 81 can be positioned on one of one of two long limits of framework 21 or two minor faces.Fig. 9 illustrates the synoptic diagram that for this reason inserts mouth 81.
Figure 10 illustrate is used to provide the chute that diffuser plate and blooming piece 22 slip into framework for Fig. 9, and this blooming piece chute 111 can provide diffuser plate and blooming piece 22 to assemble with framework 21.This blooming piece chute 111 can be made this blooming piece chute 111 in integrated mode simultaneously in the process of making framework 21, or forms this blooming piece chute 111 at framework 21 in the mode of assembling separately.Blooming piece chute 111 can be arranged at the two long limits of framework 21 or the epimere position of two minor face inboards, but should be perpendicular to inserting mouth 81.
Figure 11 illustrate is inserted the groove synoptic diagram that is used for fixing diffuser plate and blooming piece behind the framework 21 for blooming piece, this fixedly the groove 121 of diffuser plate and blooming piece be used for fixing diffuser plate and blooming piece 22.This fixedly the groove 121 of diffuser plate and blooming piece can make this fixedly groove 121 of diffuser plate and blooming piece simultaneously in integrated mode in the process of making framework 21, or form this fixedly groove 121 of diffuser plate and blooming piece in the mode of assembling separately at framework 21.This fixedly the groove 121 of diffuser plate and blooming piece should have at least the opening of regional area to be slightly less than the thickness of diffuser plate and blooming piece 22, reach the fixedly purpose of diffuser plate and blooming piece 22 in order to blocking diffuser plate and blooming piece 22.
Figure 12 illustrate is framework of the present invention and radiating component synoptic diagram.Illustrate as Fig. 9, radiating component 91 can be made this radiating component 91 in integrated mode simultaneously in the process of making framework 21, or forms this radiating component 91 at framework 21 in the mode of assembling separately.Radiating component 91 has coarse surface, or has the profile as fin, to increase cooling surface area.This radiating component 91 is disposed at framework 21 outsides, and it is preferable to be disposed on the framework 21 that is provided with cold-cathode tube deck 51, wherein, cold-cathode tube produces more heat, so radiating component 91 has radiating effect most to be disposed on the framework 21 that is provided with power source inverter deck 52 because connecting the zone of power source inverter.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. a framed structure is applicable to a backlight module, comprising:
One support body, have two long limit and two minor faces, and respectively be provided with a fluorescent tube fixed part on this two minor face, then corresponding first chute that extends along the length direction on described long limit that respectively is provided with on this two long limit, make the backboard of described backlight module to slip into described framed structure along described first chute at the length direction on described long limit, wherein this fluorescent tube fixed position is in the bottom of two minor faces, and this first chute then is positioned at the hypomere position of this inboard, two long limits.
2. framed structure as claimed in claim 1 is wherein gone back correspondence on this two long limit and is provided with one second chute, and is positioned at the epimere position of this inboard, two long limits.
3. framed structure as claimed in claim 2 wherein also is provided with one and inserts mouth on one of them of this two minor face, and should insert mouth corresponding to this second chute.
4. framed structure as claimed in claim 1, wherein this support body also comprises a radiating component, and this radiating component is positioned at the outside of this support body.
5. framed structure as claimed in claim 4, wherein this radiating component comprises a radiating fin.
6. as claim 1,2 or 3 framed structure, wherein this support body is made of many supports.
7. framed structure as claimed in claim 6, wherein two ends of those a plurality of supports have a group connecting part respectively, in order to mutual winding.
8. framed structure as claimed in claim 7, wherein those a plurality of supports are constituted by the aluminium extruded type support, and are formed with a radiating component on it.
9. framed structure as claimed in claim 8, wherein this radiating component is positioned at the support body outside that this a plurality of support constitutes.
10. framed structure as claimed in claim 1, Yi Bian wherein this two minor face wherein be provided with a power source inverter deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100777449A CN100389351C (en) | 2006-04-24 | 2006-04-24 | Back light unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100777449A CN100389351C (en) | 2006-04-24 | 2006-04-24 | Back light unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1837929A CN1837929A (en) | 2006-09-27 |
| CN100389351C true CN100389351C (en) | 2008-05-21 |
Family
ID=37015371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100777449A Expired - Fee Related CN100389351C (en) | 2006-04-24 | 2006-04-24 | Back light unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100389351C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI334946B (en) | 2006-12-15 | 2010-12-21 | Chimei Innolux Corp | Assembling frame and backlight module using the same |
| CN101295098A (en) | 2007-04-25 | 2008-10-29 | 群康科技(深圳)有限公司 | Back light module unit and LCD device |
| CN101893211B (en) * | 2010-07-14 | 2012-01-11 | 深圳市华星光电技术有限公司 | Backlight module and rubber frame unit structure thereof |
| CN102402913B (en) * | 2011-11-18 | 2013-10-16 | 深圳市华星光电技术有限公司 | Flat panel display device, stereoscopic display device and plasma display device |
| US8746911B2 (en) | 2012-02-16 | 2014-06-10 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and LCD device comprising backlight module |
| CN102588839B (en) * | 2012-02-16 | 2014-01-08 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device adopting same |
| CN109036123B (en) * | 2018-08-23 | 2021-08-31 | 深圳创维－Rgb电子有限公司 | Backlight module, display equipment and assembling method of backlight module |
| CN115598881A (en) * | 2022-11-28 | 2023-01-13 | 惠科股份有限公司（Cn） | Back plate, backlight module and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05297369A (en) * | 1992-04-21 | 1993-11-12 | Sony Corp | Liquid crystal monitor |
| CN1371018A (en) * | 2001-02-20 | 2002-09-25 | 达碁科技股份有限公司 | Lightguide plate fixing frame and its back lighting device |
| CN1584693A (en) * | 2004-05-25 | 2005-02-23 | 友达光电股份有限公司 | Optical background module set and its fixing mechanism |
| CN1603890A (en) * | 2003-09-29 | 2005-04-06 | 友达光电股份有限公司 | Liquid crystal display module |
-
2006
- 2006-04-24 CN CNB2006100777449A patent/CN100389351C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05297369A (en) * | 1992-04-21 | 1993-11-12 | Sony Corp | Liquid crystal monitor |
| CN1371018A (en) * | 2001-02-20 | 2002-09-25 | 达碁科技股份有限公司 | Lightguide plate fixing frame and its back lighting device |
| CN1603890A (en) * | 2003-09-29 | 2005-04-06 | 友达光电股份有限公司 | Liquid crystal display module |
| CN1584693A (en) * | 2004-05-25 | 2005-02-23 | 友达光电股份有限公司 | Optical background module set and its fixing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1837929A (en) | 2006-09-27 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20080521 Termination date: 20210424 |