CN101769514A - Structure and method for improving optical performance of backlight module by utilizing back panel - Google Patents
Structure and method for improving optical performance of backlight module by utilizing back panel Download PDFInfo
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- CN101769514A CN101769514A CN 201010114434 CN201010114434A CN101769514A CN 101769514 A CN101769514 A CN 101769514A CN 201010114434 CN201010114434 CN 201010114434 CN 201010114434 A CN201010114434 A CN 201010114434A CN 101769514 A CN101769514 A CN 101769514A
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Abstract
The invention relates to a structure and a method for improving the optical performance of a backlight module by utilizing a back plate. The structure for improving the optical performance of the backlight module by utilizing the back panel is characterized in that the first side surface of a back plate, used for installing a backlight module, is set as a plane; the second side surface of the back plate, relative to the first side surface, is provided with a reinforcing assembly. The invention has the advantages that the thickness of the whole back plate can be further shortened, and then a thinner liquid crystal display can be manufactured; that the shadow is formed on the light-emitting surface of the backlight module because insufficient reflection rays can be prevented, thereby improving the optical performance of the backlight module; and the manufacture cost is reduced.
Description
Technical field
The present invention relates to a kind of backlight module, relate in particular to the back board structure that this backlight module is installed.
Background technology
LCD itself is because can't active illuminating, and therefore all must backlight module be set at the back side of display floater provides light source.The backlight liquid crystal display modular structure, include LGP substantially, be located at the blooming piece (as brightening piece, prismatic lens, diffusion sheet etc.) of the exiting surface of LGP, then be provided with respect to the another side of exiting surface and be used for the reflector plate of reflection ray, and be located at light source in abutting connection with LGP, the backlight module of forming is then in a backboard, launch light into LGP by light source, via refraction and reflection light is penetrated from the exiting surface of LGP, allow the liquid crystal panel of being located at before the backlight module produce illumination effect.
The light source that is applied to backlight module in the prior art has two kinds haply, and wherein a kind of is cold-cathode tube (CCFL), and another kind then is light emitting diode (LED); Be commonly referred to " full run-down type " with CCFL as light source, it is after plural CCFL is arranged in a backboard, backboard is installed on the back side of backlight module again, makes CCFL provide light source to allow liquid crystal panel produce visual illumination effect from the backlight module back.Owing to adopt CCFL can cause product to have big thickness, therefore, require the LCD of thin typeization all to adopt LED at present as light source as the LCD of light source; Described LED is the side that is installed in the LGP of backlight module, the backlight module of forming then is installed on a backboard, the light of LED emission is injected from the LGP side, cooperate assemblies such as reflector plate via the optical texture of being located at LGP, allow light penetrate LGP from exiting surface, so that the illumination effect of LCD to be provided via continuous reflection and refraction.
The described backboard that is provided in to install backlight module is the housing by the sheet metal moulding; With reference to shown in Figure 1, for the backboard that metal sheet is made has enough intensity, general way is to utilize mould punch forming technology sheet metal to be molded form and the structure that possesses plural fin at present.But, this kind back board structure, will cause following some disappearance:
The reflector plate of backlight module back is to be engaged in backboard forward surface (with reference to Fig. 1) smoothly, that is, the partial reflection sector-meeting directly contacts the fin surface, the partial reflection sheet then can't touch fin (positions between two fins), therefore, ray cast is during to reflector plate, and more light quantity can be reflected in the position that touches fin, less light quantity is then reflected in the position that does not touch fin, thereby shows some shadow D and cause non-uniform light at the exiting surface of LGP.
After backboard molds fin, can make whole back plate must maintain certain thickness, can't further dwindle, so that can't produce the more LCD of thin typeization.
When manufacturing has the backboard of fin, must develop more relevant mould, except die cost was high, processing procedure was also more loaded down with trivial details, had directly increased manufacturing cost.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of structure of utilizing backboard to promote the optical appearance of backlight module, are intended to solve the above problems;
The present invention also provides the method for utilizing backboard to promote the optical appearance of backlight module.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The structure of utilizing backboard to promote the optical appearance of backlight module of the present invention comprises: first side that is used for installing backlight module at a backboard is made as the plane, and this backboard then is provided with reinforcing component with respect to second side of described first side;
The method of utilizing backboard to promote the optical appearance of backlight module of the present invention, realize by following steps:
Formation plane, first side with a backboard is used for installing backlight module makes the optical module of being located at backlight module smooth in first side of this backboard;
This backboard then is provided with reinforcing component with respect to second side of described first side, to avoid the backboard deflection deformation.
Compared with prior art, the invention has the beneficial effects as follows: the thickness of whole back plate is further dwindled, and then can produce the more LCD of thin typeization; Prevent to form shadow because of reflection ray is not enough, promote the optical appearance of backlight module at the exiting surface of backlight module; Reduce manufacturing cost simultaneously.
Description of drawings
Fig. 1 can produce the schematic diagram of the position of shadow at the exiting surface of backlight module for after showing that the prior art dorsulum has been installed backlight module.
Fig. 2 is for showing the schematic perspective view of back board structure of the present invention.
Fig. 3 is the schematic perspective view of first side structure of demonstration backboard of the present invention.
Fig. 4 is provided with the floor map of reinforcing component for showing the present invention in second side of backboard.
Fig. 5 is the embodiment schematic diagram after demonstration the present invention's backboard has been installed backlight module.
Among the figure: 1 ... backboard, 11 ... groove, 111 ... first side, 112 ... second side, 12 ... rivet hole, 2 ... reinforcing component, 3 ... rivet, 4 ... backlight module, 41 ... LGP, 42 ... reflector plate, 43 ... blooming piece, 44 ... led light source, A ... backboard, A1 ... fin, D ... shadow.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
Purpose of the present invention, be to solve the back board structure that is used in liquid crystal display backlight module in the prior art, on the optical appearance of backlight module, have shadow and uneven all, the thickness of LCD can't further dwindle, and and backboard must cooperate more mould molding to make so that the manufacturing cost problem of higher.
Feature of the present invention, being with aforementioned backboard, is the plane at the surface forming that directly contacts with backlight module at least, makes each position of reflector plate of backlight module touch backboard all smoothly, make the light that is projected to reflector plate can reflect the exiting surface of LGP equably, can not produce shadow; In addition,, the thickness of backboard is dwindled, to produce the more LCD of thin typeization by getting rid of the structure of aforementioned fin; More, be able in manufacture process, reduce the development cost of mould, significantly reduce manufacturing cost because omitted described rib structures.
Another feature of the present invention is that the backboard on described plane has suitable reinforced structure, because of the undercapacity deflection deformation, has influence on the performance of optics with the backboard of avoiding the plane.
Based on this, technological means of the present invention, it is the formation plane, first side that a backboard is used for installing backlight module, make the optical module of being located at backlight module smooth in first side of this backboard, this backboard then is provided with reinforcing component with respect to second side of described first side, avoiding the backboard deflection deformation, thereby prevent to form shadow because of reflection ray is not enough, promote the optical appearance of backlight module at the exiting surface of backlight module.
The mode that the present invention carries out reinforcement to backboard can adopt at least one plate body, with riveted, sealed, the welding ... be fixed on backboard etc. any suitable mode.
Based on this hiding distribution, make product consideration more attractive in appearance, the present invention can form the groove of right quantity on the surface of backboard, allows conductor wire imbed in this groove.
Consult Fig. 2 to shown in Figure 5, the backboard that utilizes that the invention provides promotes the method and the structure of the optical appearance of backlight module, be the 111 formation planes, first side that a backboard 1 are used for installing backlight module 4, this backboard 1 is provided with reinforcing component 2 with respect to 112 of second sides of described first side 111, to avoid backboard 1 deflection deformation; A plurality of appropriate locations of first side 111 are then reserved and are used for cooperating the rivet hole 12 of rivet with this reinforcing component 2 of riveted.
Described backlight module 4 includes a LGP 41, is located at the blooming piece 43 of the exiting surface of LGP 41 (as brightening piece, prismatic lens, diffusion sheet etc.), then be provided with respect to the another side of exiting surface and be used for the reflector plate 42 of reflection ray, and be located at led light source 44 in abutting connection with LGP 41.After backlight module 4 is installed on first side 111 of backboard 1, make that the surface of the reflector plate 42 and first side 111 is smooth fully, thus, led light source 44 is injected the ray cast of LGP 41 behind reflector plate 42, is able to reflect fully equably the LGP exiting surface.
The present invention is used for backboard 1 is carried out the reinforcing component 2 of reinforcement, can be a plate body, or even two or more a plurality of plate body; Based on allowing backboard 1 light-weighted consideration, described reinforcing component can adopt aluminium sheet.The fixed form of this reinforcing component 2 and backboard 1, can reinforcing component 2 near periphery suitably, and the appropriate location of backboard 1 is drilled with the corresponding hole of plural number, reinforcing component 2 is placed second side 112 of backboard 1 then after, again with rivet 3 with reinforcing component 2 and backboard 1 rivet clasp.In addition, also can adopt screw to pass this corresponding hole, cooperate nut that reinforcing component is locked in backboard again.Even also can adopt solder technology that the local location of reinforcing component 2 peripheries is weldingly fixed on backboard 1.
Because after backlight module 4 was installed on backboard 1, must connect the complex conduction line provided power supply, therefore, based on this hiding distribution, make product consideration more attractive in appearance, the present invention can form the groove 11 of right quantity on the surface of first side 111 of backboard 1, to allow conductor wire imbed in this groove 11.
Utilize aforementioned method of the present invention and structure, the advantage below can when making LCD, obtaining:
One, the reflector plate of optical module back can be engaged in the backboard forward surface fully smoothly, and therefore, ray cast is during to reflector plate, from the light quantity of reflector plate reflection near consistent, thereby show the evenly luminous effect that does not have shadow at the exiting surface of LGP.
Two, therefore the present invention can make the thickness of whole back plate further dwindle, and then can produce the more LCD of thin typeization owing to got rid of the fin that is located at backboard in the prior art.
Three, the present invention is used for the die cost of this fin of moulding by omitting the fin that is located at backboard in the prior art, being omitted simultaneously, and manufacture process is also simplified, and has directly reduced manufacturing cost.
The above only is in order to explain the present invention's preferred embodiment; be not that attempt is done any formal restriction to the present invention according to this; be with, all have in following any modification or change of doing relevant the present invention of identical invention spirit, all must be included in the claim of the present invention protection.
Claims (8)
1. structure of utilizing backboard to promote the optical appearance of backlight module is characterized in that comprising: first side that is used for installing backlight module at a backboard is made as the plane, and this backboard then is provided with reinforcing component with respect to second side of described first side.
2. the structure of utilizing backboard to promote the optical appearance of backlight module according to claim 1, it is characterized in that: described reinforcing component is at least one plate body.
3. the structure of utilizing backboard to promote the optical appearance of backlight module according to claim 1, it is characterized in that: first side of described backboard is provided with the groove that is used for burying underground conductor wire.
4. the structure of utilizing backboard to promote the optical appearance of backlight module according to claim 1, it is characterized in that: described backboard is to be matched with the backlight module of use at LCD TV.
5. method of utilizing backboard to promote the optical appearance of backlight module, realize by following steps:
Formation plane, first side with a backboard is used for installing backlight module makes the optical module of being located at backlight module smooth in first side of this backboard;
This backboard then is provided with reinforcing component with respect to second side of described first side, to avoid the backboard deflection deformation.
6. the method for utilizing backboard to promote the optical appearance of backlight module according to claim 5, wherein: described reinforcing component is at least one plate body.
7. the method for utilizing backboard to promote the optical appearance of backlight module according to claim 5, wherein: first side of described backboard is provided with the groove that is used for burying underground conductor wire.
8. the method for utilizing backboard to promote the optical appearance of backlight module according to claim 5, wherein: described backboard is to be matched with the backlight module of use at LCD TV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010114434 CN101769514A (en) | 2010-02-26 | 2010-02-26 | Structure and method for improving optical performance of backlight module by utilizing back panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010114434 CN101769514A (en) | 2010-02-26 | 2010-02-26 | Structure and method for improving optical performance of backlight module by utilizing back panel |
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| CN101769514A true CN101769514A (en) | 2010-07-07 |
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| CN 201010114434 Pending CN101769514A (en) | 2010-02-26 | 2010-02-26 | Structure and method for improving optical performance of backlight module by utilizing back panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013056477A1 (en) * | 2011-10-20 | 2013-04-25 | 深圳市华星光电技术有限公司 | Backplane, backlight module, and method for affixing backplane reinforcing bar |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201251032Y (en) * | 2008-09-10 | 2009-06-03 | 北京京东方光电科技有限公司 | Backlight module |
| CN101477262A (en) * | 2009-02-09 | 2009-07-08 | 友达光电股份有限公司 | Backlight module and display equipment |
| CN201739967U (en) * | 2010-02-26 | 2011-02-09 | 上海向隆电子科技有限公司 | Backlight module structure for enhancing optical representation by utilizing back panel |
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2010
- 2010-02-26 CN CN 201010114434 patent/CN101769514A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201251032Y (en) * | 2008-09-10 | 2009-06-03 | 北京京东方光电科技有限公司 | Backlight module |
| CN101477262A (en) * | 2009-02-09 | 2009-07-08 | 友达光电股份有限公司 | Backlight module and display equipment |
| CN201739967U (en) * | 2010-02-26 | 2011-02-09 | 上海向隆电子科技有限公司 | Backlight module structure for enhancing optical representation by utilizing back panel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013056477A1 (en) * | 2011-10-20 | 2013-04-25 | 深圳市华星光电技术有限公司 | Backplane, backlight module, and method for affixing backplane reinforcing bar |
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Application publication date: 20100707 |