CN102590909A - Reflector plate and liquid crystal module - Google Patents
Reflector plate and liquid crystal module Download PDFInfo
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- CN102590909A CN102590909A CN2012100535854A CN201210053585A CN102590909A CN 102590909 A CN102590909 A CN 102590909A CN 2012100535854 A CN2012100535854 A CN 2012100535854A CN 201210053585 A CN201210053585 A CN 201210053585A CN 102590909 A CN102590909 A CN 102590909A
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- reflector plate
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- metal level
- reflection horizon
- liquid crystal
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Abstract
The invention relates to the technical field of display, in particular to a reflector plate and a liquid crystal module. The reflector plate comprises a reflection layer and a metal layer for preventing the reflection layer from being crinkled, wherein the metal layer is positioned on the lower surface of the reflection layer; a combining layer is arranged between the reflection layer and the metal layer and is used for strengthening the interface matching degree between the reflection layer and the metal layer; an upper protection layer is arranged on the upper surface of the reflection layer; and a lower protection layer is arranged on the lower surface of the metal layer. The metal layer additionally arranged on the reflection plate disclosed by the invention has better hardness and heat conduction performance, so that the mal-distributed heat on a back plate is quickly and uniformly dissipated and the adverse phenomena that the reflector plate is crinkled, is easy to generate thermal deformation and the like caused by factors such as unevenness of the back plate and non-uniformity of heat conduction are effectively avoided; and meanwhile, the phenomenon that the edges of the reflector plate are bent caused by heat change of the light incident side of an LED (Light Emitting Diode) can be effectively prevented, the quality of a display image of the liquid crystal module is improved and the service life of each part in the liquid crystal module is prolonged to the maximum extent.
Description
Technical field
The present invention relates to the display technique field, particularly a kind of reflector plate and liquid crystal module.
Background technology
In recent years, along with the continuous development of display technique, LCD TV has received people's extensive concern, and liquid crystal module is a most important parts in the LCD TV, and reflector plate is a crucial blooming piece in the liquid crystal module.This reflector plate mainly is to be used for reflection ray, increases the optical brightness of liquid crystal module.In order to improve the reflecting properties of reflector plate, people improve constantly the reflectivity of reflector plate through various improvement.Because reflectivity is an important technology parameter of reflector plate, therefore, reflector plate of the prior art all is based on the improvement that the reflectivity that improves reflector plate improves liquid crystal module brightness.Along with reflector plate preparation technology and Development of Materials, the reflectivity of common reflector plate can reach more than 97%, reaches capacity soon.
But, require to recede into the background for the reflectivity of reflector plate along with the penetrance of liquid crystal panel in the LCD TV and improving constantly of back light source brightness.Under the fast-developing background of LED; The LED-backlit LCD TV is greatly improved in brightness; The people's attention focus is transferred in the research of led light source from the reflectivity of reflector plate gradually; But wrinkling (waving) problem that occurs owing to the uneven reflector plate that causes of the not gentle heat radiation of backboard of always being ignored by people is serious day by day, is enough to begin to have influence on the image quality of TV.
Summary of the invention
Goal of the invention
The purpose of this invention is to provide a kind of reflector plate and liquid crystal module, to solve in the prior art because backboard is uneven and the unequal factor of dispelling the heat causes reflector plate that phenomenons such as wrinkling and thermal deformation take place easily, thereby influence the picture quality problems of TV.
Technical scheme
In order to realize the foregoing invention purpose; One aspect of the present invention provides a kind of reflector plate; It comprises: the reflection horizon prevents that with being used to the reflection horizon from wrinkling metal level taking place; Said metal level is positioned at the lower surface in reflection horizon, between said reflection horizon and the metal level binding layer is set, and said binding layer is used to strengthen the interface matching degree between reflection horizon and the metal level;
The upper surface in said reflection horizon is provided with protective seam, and the lower surface of said metal level is provided with lower protective layer.
Further, the thickness of protective seam is b1 in the setting, and the thickness of lower protective layer is b2, and the thickness in reflection horizon is c, then b1/b2=2.5/ (c
1/3).
Further, said metal level is processed by aluminum or aluminum alloy.
Further, the lower surface of said metal level is done the metallics processing.
Further, said metal layer thickness is 10-30nm.
Further, the upper surface in said reflection horizon is done the particlized processing.
Further, said binding layer is titania, silit, zinc paste or indium oxide.
Further, said upper and lower protective seam is PET or PC material.
Further, the thickness in said binding layer and metal layer thickness and reflection horizon is proportional.
On the other hand, the present invention also provides a kind of liquid crystal module, comprises above-mentioned reflector plate.
Beneficial effect
Have following advantage or beneficial effect in the technique scheme: the reflector plate that the present invention adopts; Because the metal level of setting up has better hardness and thermal conducting function; Can the heat of skewness on the backboard be distributed rapidly uniformly; The bad phenomenon such as the wrinkling and easy generation of reflector plate thermal deformation that cause because of factors such as the conduction of the not gentle heat of backboard are inhomogeneous have effectively been avoided; Simultaneously can prevent effectively that also buckling phenomenon from appearring in the reflector plate edge that LED incident side thermal change causes, improve the quality of liquid crystal module display image, and farthest prolonged the serviceable life of each parts in the liquid crystal module.
Description of drawings
Fig. 1 is the reflector plate structure synoptic diagram of the embodiment of the invention;
Fig. 2 is positioned at the structural representation on the backboard for the reflector plate of the embodiment of the invention;
Fig. 3 is an embodiment of the invention reflector plate internal heat conduction principle synoptic diagram.
Among the figure:
1, reflection horizon; 2, binding layer; 3, metal level; 4, go up protective seam; 5, backboard; 6: lower protective layer.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
As shown in Figure 1, be the reflector plate structure synoptic diagram of the embodiment of the invention.This reflector plate comprises that reflection horizon 1 prevents that with being used to reflection horizon 1 from wrinkling metal level 3 taking place, and metal level 3 is positioned at the lower surface in reflection horizon 1, and the lower surface in this reflection horizon is the one side that backboard is pressed close in the reflection horizon.Between reflection horizon 1 and the metal level 3 binding layer 2 is set, binding layer 2 is used to strengthen the interface matching degree between reflection horizon 1 and the metal level 3; The upper surface in reflection horizon 1 is provided with protective seam 4, and the lower surface of metal level 3 is provided with protective seam 6.
The reflector plate that the present invention adopts; Because the metal level of setting up 3 has better hardness and thermal conducting function; Can the heat of skewness on the backboard be distributed rapidly uniformly; The reflector plate of effectively having avoided causing because of factors such as the conduction of the not gentle heat of backboard are inhomogeneous is wrinkling, bad phenomenon such as thermal deformation take place reflector plate easily; Simultaneously can prevent effectively that also buckling phenomenon from appearring in the reflector plate edge that LED incident side thermal change causes, improve the quality of liquid crystal module display image, and farthest prolonged the serviceable life of each parts in the liquid crystal module.In addition, 1 adopts protective seam 4 and lower protective layer 6 to protect jointly with the surface of metal level 3 simultaneously in the reflection horizon, plays the effect that the surface of protection reflection horizon 1 and metal level 3 can not be damaged on the one hand; The more important thing is; This double shielding layer can the balance reflection horizon 1 with metal level 3 laterally, elongation longitudinally because metal level 3 has the characteristic of expanding with heat and contract with cold, therefore; Protective seam protection is adopted on two surfaces at this reflector plate structure simultaneously; Can apply two-way restraint to metal level 3, thereby make that the stress of entire emission chip architecture both sides is even, and then avoid reflector plate generation wrinkling.
Be specially: the BaSO that the traditional reflective sheet uses in the prior art is adopted in this reflection horizon 1
4Perhaps CaCO
3Get final product.In addition,, make more rays that scattering phenomenon can take place in order to increase the uniformity coefficient of module backlight, can be with the surface of reflection horizon 1 away from binding layer 2, promptly the upper surface in reflection horizon is made particlized and is handled.The diameter of this particle is more excellent is chosen to be 5-15nm, and the thickness in this reflection horizon 1 can be selected the 188nm or the 225nm of standard for use, perhaps can decide according to the demand of reality module backlight.
This metal level 3 can select for use metal material common and that price comparison is cheap to get final product.For example aluminium, copper, silver, aluminium alloy, perhaps other metal or alloy.Consider factors such as its heat-conductive characteristic and cost, this metal level 3 can preferably be processed by the aluminum or aluminum alloy material.The heat conduction of metal level 3 and heat sinking function; Can rapidly the heat conduction of backboard be come; Make heat in the reflection horizon, distribute uniformly, effectively prevent effectively to solve the bright dark uneven problem of liquid crystal module owing to the thermal deformation phenomenon takes place in the backboard heat radiation uneven reflection horizon that causes.Because the intrinsic hardness of metal, the feasible metal level of setting up 3 can prevent that backboard is uneven and influence reflection horizon generation wrinkling.Simultaneously, this metal level can the balance reflector plate laterally, vertical diffraction efficiency, further prevents reflector plate generation wrinkling.
Because the effect of the metal level 3 among the present invention is not the problem that improves reflection ray in order to solve, therefore, it is identical with the metal layer thickness that plays reflex that the thickness of this metal level 3 does not need, and only needs the very thin one deck of 10-20nm to get final product.In addition, for the wearing quality and the heat-conductive characteristic on reinforcement metal layer 3 surface, this metal level 3 is away from the surface of binding layer 2, and promptly the lower surface of metal level 3 is done the metallics processing, and this particle can be formed on the surface of metal level 3 through coating or sputtering technology.Usually the metal level 3 that plays the reflection ray effect all needs reflection surperficial smooth as much as possible and then promotion light; And because the metal level 3 among the present invention mainly is to prevent that in order to play heat transfer effect the reflection horizon from wrinkling taking place; Therefore; The surface of this metal level 3 does not need sliding surface, can make wearing quality and heat-conductive characteristic that uneven surface strengthens metal level 3.
Connect through binding layer 2 between this reflection horizon 1 and the metal level 3; Concrete; Because the material matching degree of reflection horizon 1 and metal level 3 is mutually far short of what is expected, therefore, the binding layer 2 of setting can well increase the matching degree at this reflection horizon 1 and 2 two kinds of different materials interfaces of metal level; Can increase simultaneously the adhesion at the inner different interfaces of reflector plate, metal level 3 can link together with reflection horizon 1 preferably like this.This binding layer 2 has high-melting-point, high heat conductance, and physical characteristicss such as radioresistance make reflector plate heat radiation evenly, and balance all directions elongation is realized the effect of the anti-fold of reflector plate, and the reflection horizon is protected, and prolongs reflector plate serviceable life.More excellent, this binding layer 2 can adopt materials such as titania, silit, zinc paste, indium oxide.
Should go up protective seam 4 adopts high transmission rate and has the PET or the PC material of ultra-violet radiation resisting with lower protective layer 6.Because last protective seam 4 has the performance of ultra-violet radiation resisting, can protect reflection horizon 1 not receive ultraviolet radiation.Lower protective layer 6 plays the effect of protection metal level 3, avoids metal level 3 to be damaged.But the more important thing is; This double shielding layer can the balance reflection horizon 1 with metal level 3 laterally, elongation longitudinally; Because metal level 3 has the characteristic of expanding with heat and contract with cold, therefore, two surfaces of this reflector plate structure adopt the double shielding layer to protect simultaneously; Can apply two-way restraint to metal level 3, thereby make that the stress of entire emission chip architecture both sides is even.In order to make upper and lower protective seam reach the best anti-fold function of balance, protective seam 4 thickness are b1 in the setting, and lower protective layer 4 thickness are b2, and the thickness in reflection horizon is c, and b1/b2=2.5/ (c is set
1/3).
Need to prove that each layer thickness of structure only is preferred thickness under the prerequisite of the reflector thickness of demarcating in the above-mentioned reflector plate.In actual reflector plate structure, the relation that the thickness of this binding layer 2, metal level 3 can foundation be directly proportional with the thickness in reflection horizon 1.When reflection horizon 1 was thicker, corresponding, this binding layer 2 also adopted thicker thickness with metal level 3 thereupon.
With reference to figure 2, for reflector plate is applied in the structural representation on the backboard.Because the backboard 5 common aluminium section bars in the liquid crystal module are stamped to form, its surface can not guarantee very smooth, tends to exist uneven; When reflector plate is positioned on the rough backboard 5; Be easy to receive backboard 5 rough influences, when reflector plate is positioned on the backboard 5 for a long time, be easy to form and same uneven in backboard 5 surfaces; Cause reflector plate to cause wrinkling, and then influence the image display quality of liquid crystal module.Set up metal level and two-sided protective seam and the present invention launches sheet, then can effectively avoid this problem.
With reference to figure 3, be reflector plate internal heat conduction principle synoptic diagram of the present invention.Metal level 3 in this reflector plate has good heat-conductive characteristic; The heat that passes on the backboard 5 can be spread through metal level 3 fast, equably to come; Thermal deformation and the wrinkling having avoided reflector plate to be heated inequality and caused; Can farthest protect the service property (quality) of reflector plate, show that for liquid crystal module the image of high-resolution quality is made guarantee.
In addition; The present invention also provides a kind of liquid crystal module, and the LED lamp adopts the side entering type mounting means in this liquid crystal module, and promptly the LED lamp is positioned at the side of LGP; It comprises the reflector plate among the embodiment; The metal level that this reflector plate is set up has better hardness and thermal conducting function, can the heat of skewness on the backboard be distributed rapidly uniformly, and the reflector plate of effectively having avoided causing because of factors such as the conduction of the not gentle heat of backboard are inhomogeneous is wrinkling, bad phenomenon such as thermal deformation take place reflector plate easily.
In addition, when the LED lamp is in running order, can produce great amount of heat, the LED lamp in the side entering type liquid crystal module is positioned at the side of LGP; Than high a lot of away from the heat of LED lamp, because the heat radiation effect, the heat that causes passing to reflector plate is inhomogeneous equally near near the heat the LED lamp; Reflector plate expanded by heating degree varies causes like this; Warping phenomenon taking place easily, cause local luminance inhomogeneous, produces the heat leak optical phenomenon.And the metal level of setting up is owing to have good heat-conductive characteristic; Can heat diffusion be come; Can prevent effectively that buckling phenomenon from appearring in the reflector plate edge that LED incident side thermal change causes; Improve the quality of liquid crystal module display image, and farthest prolonged the serviceable life of each parts in the liquid crystal module.
Reflector plate and liquid crystal module that the present invention adopts; Because the metal level of setting up has better hardness and thermal conducting function; Can the heat of skewness on the backboard be distributed rapidly uniformly; The reflector plate of effectively having avoided causing because of factors such as the conduction of the not gentle heat of backboard are inhomogeneous is wrinkling, bad phenomenon such as thermal deformation take place reflector plate easily; Simultaneously can prevent effectively that also buckling phenomenon from appearring in the reflector plate edge that LED incident side thermal change causes, improve the quality of liquid crystal module display image, and farthest prolonged the serviceable life of each parts in the liquid crystal module.
Above embodiment only is used to explain the present invention; And be not limitation of the present invention, the those of ordinary skill in relevant technologies field is under the situation that does not break away from the spirit and scope of the present invention; Can also make various variations and modification, so all technical schemes that are equal to also belong to category of the present invention.
Claims (10)
1. reflector plate; It is characterized in that; Comprise: the reflection horizon prevents that with being used to the reflection horizon from wrinkling metal level taking place; Said metal level is positioned at the lower surface in reflection horizon, between said reflection horizon and the metal level binding layer is set, and said binding layer is used to strengthen the interface matching degree between reflection horizon and the metal level;
The upper surface in said reflection horizon is provided with protective seam, and the lower surface of said metal level is provided with lower protective layer.
2. reflector plate as claimed in claim 1 is characterized in that, the thickness of protective seam is b1 in the setting, and the thickness of lower protective layer is b2, and the thickness in reflection horizon is c, then b1/b2=2.5/ (c
1/3).
3. reflector plate as claimed in claim 1 is characterized in that said metal level is processed by aluminum or aluminum alloy.
4. reflector plate as claimed in claim 3 is characterized in that the lower surface of said metal level is done the metallics processing.
5. reflector plate as claimed in claim 4 is characterized in that, said metal layer thickness is 10-30nm.
6. reflector plate as claimed in claim 1 is characterized in that, the upper surface in said reflection horizon is made particlized and handled.
7. reflector plate as claimed in claim 1 is characterized in that, said binding layer is titania, silit, zinc paste or indium oxide.
8. reflector plate as claimed in claim 7 is characterized in that, said upper and lower protective seam is PET or PC material.
9. reflector plate as claimed in claim 1 is characterized in that the thickness in said binding layer and metal layer thickness and reflection horizon is proportional.
10. a liquid crystal module comprises each described reflector plate like claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210053585.4A CN102590909B (en) | 2012-03-02 | 2012-03-02 | Reflector plate and liquid crystal module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210053585.4A CN102590909B (en) | 2012-03-02 | 2012-03-02 | Reflector plate and liquid crystal module |
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| Publication Number | Publication Date |
|---|---|
| CN102590909A true CN102590909A (en) | 2012-07-18 |
| CN102590909B CN102590909B (en) | 2014-04-02 |
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ID=46479810
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210053585.4A Active CN102590909B (en) | 2012-03-02 | 2012-03-02 | Reflector plate and liquid crystal module |
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| CN107850703A (en) * | 2015-07-24 | 2018-03-27 | 3M创新有限公司 | Reflection with heat dissipating layer stacks |
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| CN102590909B (en) | 2014-04-02 |
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Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Video Technology Co.,Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE ELECTRIC Co.,Ltd. |
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