CN204241806U - Display device and reflectance coating thereof - Google Patents
Display device and reflectance coating thereof Download PDFInfo
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- CN204241806U CN204241806U CN201420739223.5U CN201420739223U CN204241806U CN 204241806 U CN204241806 U CN 204241806U CN 201420739223 U CN201420739223 U CN 201420739223U CN 204241806 U CN204241806 U CN 204241806U
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Abstract
A kind of display device, the backlight module comprising housing, be contained in the liquid crystal panel in housing and be connected with liquid crystal panel, backlight module comprises: the optical thin film attached successively, light guide plate and reflectance coating, and optical thin film attaches mutually with liquid crystal panel; Reflectance coating comprises reflectance coating matrix and hard layer; Reflectance coating matrix comprises plastic basis material and the organic solid particle interspersed among in plastic basis material and organic hollow particle, is formed with bubble in plastic basis material; Hard layer is located at least side of reflectance coating matrix, and hard layer is provided with groove away from the side of reflectance coating matrix, and hard layer and light guide plate attach.The reflectance coating of above-mentioned display device, by arranging hard layer, can improve the skin hardness of reflectance coating, improves the mechanical property of reflectance coating; Meanwhile, hard layer can prevent micropore or the space adsorption moisture of reflectance coating inside, improves the resistance to high humidity environment performance of reflectance coating; In addition, be provided with groove by the surface at hard layer, reduce the probability that reflectance coating and light guide plate are scratched by foreign matter.
Description
Technical field
The utility model relates to a kind of electronic equipment, particularly relates to a kind of display device and reflectance coating thereof.
Background technology
Display device a kind ofly certain e-file is shown to show tools screen reflexing to again human eye by specific transmission equipment.Because liquid crystal display (LCD) has environmental protection, low power consuming, Low emissivity, the advantages such as picture is soft, LCD has become the most general display technique of current application.Because LCD is the display device of non-luminescent, backlight must be utilized just to reach the function of display, therefore the quality of backlight performance can directly affect LCD video picture quality.
The main member of backlight system comprises: light source, light guide plate, all kinds of blooming piece.In backlight system, blooming piece mainly comprises reflectance coating, diffusion barrier and brightness enhancement film.The Main Function of reflectance coating is the reflectivity improving optical surface, will spill the light high-level efficiency bottom light guide plate and reflect without consume, thus reduces light consume, reduces power consumption, improves the light saturation degree of LCD.
In order to improve reflectivity, general by adding particle or making reflectance coating produce micropore or bubble, utilize refractive index difference between the refraction of particle or the substrate resin of film and micropore or bubble to improve reflectivity, although these methods can improve the reflectivity of film, but along with the raising of the porosity at reflectance coating, namely the micropore of reflectance coating or air bubble content increase, cause reflectance coating deliquescing, skin hardness is inadequate, very easily scratches in processing and use procedure; Simultaneously because reflectance coating is too soft, overall deflection is inadequate, in die cutting process, often produces burr, dimensional discrepancy increases, and crease easily, thus causes the loss of reflectance coating in processing and use procedure to strengthen, and yields reduces.
In addition, under hot and humid environment during long-time keeping, the easy planar water of the micropore of reflectance coating or space is graded and destroys the structure of reflectance coating, thus reflecting film reflects performance is reduced.
In addition, in the production run of backlight, some naked eyes are difficult to resolution, the foreign matter of size below 20 microns can drop between light guide plate and reflectance coating, when there is vibration in backlight, the foreign matter be present between reflectance coating and light guide plate can rub with reflectance coating and light guide plate, thus cause reflectance coating and light guide plate to be scratched by foreign matter, and then cause backlight to scratch bad generation, make picture produce bright line cut or bright spot.
Utility model content
Based on this, be necessary for the problems referred to above, there is provided a kind of display device and reflectance coating thereof, technical matters to be solved comprises the skin hardness how increasing reflectance coating, the mechanical property improving reflectance coating, reduces the loss of reflectance coating in processing and use procedure, improves the yields of reflectance coating, reduces the assembling difficulty of backlight module, improves the resistance to high wet performance of reflectance coating and reduces the probability that reflectance coating and light guide plate scratched by foreign matter.
A kind of display device, the backlight module comprising housing, be contained in the liquid crystal panel in described housing and be connected with described liquid crystal panel, described backlight module comprises: the optical thin film attached successively, light guide plate and reflectance coating, and described optical thin film attaches mutually with described liquid crystal panel;
Described reflectance coating comprises reflectance coating matrix and hard layer;
Described reflectance coating matrix comprises plastic basis material and the organic solid particle interspersed among in described plastic basis material and organic hollow particle, is formed with bubble in described plastic basis material;
Described hard layer is located at least side of described reflectance coating matrix, and described hard layer is provided with groove away from the side of described reflectance coating matrix, and described hard layer and described light guide plate attach.
Wherein in an embodiment, described reflectance coating matrix is at least provided with coating in side, and comprise organic solid particle and organic hollow particle in described coating, described hard layer is located in described coating.
Wherein in an embodiment, the particle diameter of described organic solid particle is 0.1 μm ~ 30 μm.
Wherein in an embodiment, the external diameter of described organic hollow particle is 0.1 μm ~ 30 μm, and the internal diameter of described organic hollow particle is 0.05 μm ~ 8 μm.
Wherein in an embodiment, the thickness of described coating is 1 μm ~ 25 μm.
Wherein in an embodiment, the side of described hard layer is provided with multiple groove.
Wherein in an embodiment, the height of described groove is 20 μm ~ 25 μm.
Wherein in an embodiment, the A/F of described groove is 40 μm ~ 60 μm.
Wherein in an embodiment, the material of described hard layer is curable resin.
Wherein in an embodiment, the material of described hard layer is one or more in ammonia ester, acrylic compounds, organosilicon, alkyd, amidocarbonic acid class.
The reflectance coating of above-mentioned display device, by arranging hard layer, can significantly improve the skin hardness of reflectance coating, improves the mechanical property of reflectance coating; Meanwhile, hard layer can prevent micropore or the space adsorption moisture of reflectance coating inside, improves the resistance to high humidity environment performance of reflectance coating; In addition, be provided with groove by the surface at hard layer, reduce the probability that reflectance coating and light guide plate are scratched by foreign matter.
Accompanying drawing explanation
Fig. 1 is the structural representation of the display device of the utility model one embodiment;
Fig. 2 is the exploded view of the backlight module of the display device shown in Fig. 1;
Fig. 3 is the structural representation of the reflectance coating of the utility model one embodiment;
Fig. 4 is the structural representation of the reflectance coating of another embodiment of the utility model.
Embodiment
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail embodiment of the present utility model below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the utility model.But the utility model can be much different from alternate manner described here to implement, those skilled in the art can when doing similar improvement without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public concrete enforcement.
As shown in Figure 1, it is the structural representation of the display device 10 of the utility model one embodiment.
In the present embodiment, display device 10 is mobile phone.In other embodiments, display device 10 can also be panel computer, LCD TV etc.
Display device 10 comprises: housing 100, the backlight module 300 being contained in the liquid crystal panel 200 in housing 100 and being connected with liquid crystal panel 200.
As shown in Figure 2, it is the exploded view of the backlight module 300 of the display device 10 shown in Fig. 1.
Backlight module 300 comprises: the optical thin film 310 attached successively, light guide plate 320 and reflectance coating 330, and optical thin film 310 attaches with liquid crystal panel 200 phase.
In the present embodiment, optical thin film 310 comprises the upper bright enhancement film 311 of laminating, lower bright enhancement film 312 and light-diffusing film 313, and light-diffusing film 313 is attached in light guide plate 320.
Please refer to Fig. 3, it is the structural representation of reflectance coating 330 in an embodiment.
Reflectance coating 330 comprises reflectance coating matrix 331 and is located at the hard layer 332 of reflectance coating matrix 331 side, and hard layer 332 is provided with groove 333 away from the side of reflectance coating matrix, and wherein, hard layer 332 and light guide plate 320 attach.
In the present embodiment, the material of hard layer 332 is curable resin.Such as, the material of hard layer 332 is one or more in ammonia ester, acrylic compounds, organosilicon, alkyd, amidocarbonic acid class.
In the present embodiment, the method for making of hard layer 332 is as follows:
With coating machine even spread one deck photosensitive resin on reflectance coating matrix 331, on photosensitive resin layer, extrude groove 333 by the pressing mold with convex epirelief again, by irradiating ultraviolet light, make photosensitive resin layer occur to solidify completely, finally remove pressing mold, there is after forming solidification the surface of groove 333.
It should be noted that, the material of hard layer 332 can be heat reactive resin, by the method for heating, forms the hard layer 332 with groove structure.
Above-mentioned hard layer 332 can significantly improve the skin hardness of reflectance coating matrix 331, improves the mechanical property of reflectance coating, reduce the scuffing in processing and use procedure, wrinkling, cut the bad phenomenon such as generation burr; Meanwhile, hard layer 332 is formed on reflectance coating matrix 331, is covered by reflectance coating matrix 331, thus can prevent micropore or the space adsorption moisture of reflectance coating matrix 331 inside, improves the resistance to high humidity environment performance of reflectance coating; In addition, due in the production run of backlight, some naked eyes are difficult to resolution, the foreign matter of size below 20 microns can drop between light guide plate 320 and reflectance coating 330, and the surface of hard layer 332 is provided with groove 333, the surface area fitted in hard layer 332 and light guide plate 320 surface reduces, the area making foreign matter and reflectance coating 330 and light guide plate 320 occur to rub can reduce, and, foreign matter can fall between groove 333 along with the vibration of backlight module 300, thus reduces the probability that reflectance coating 330 and light guide plate 320 scratched by foreign matter.
In order to reduce the possibility that reflectance coating 330 and light guide plate 320 are scratched by foreign matter to a greater degree, such as, groove 333 can be multiple, improves the space holding foreign matter, thus reduces the possibility that reflectance coating 330 and light guide plate 320 scratched by foreign matter.
Be appreciated that because the size of foreign matter is generally below 20 μm, in the present embodiment, the height of groove 333 is 20 μm ~ 25 μm, and the A/F of groove 333 is 40 μm ~ 60 μm, like this, groove 333 can not only store foreign matter, is also conducive to foreign matter simultaneously and discharges from groove 333.
In order to make foreign matter more easily enter in groove 333, such as, the upper shed width of groove 333 is greater than under shed width, and the xsect as groove 33 is trapezoidal, like this, foreign matter can be made more easily to fall in groove 333.
In the present embodiment mode, reflectance coating matrix 331 comprises plastic basis material 335 and intersperses among the bubble 336 in plastic basis material 335, organic solid particle 337 and organic hollow particle 338.Such as, the material of plastic basis material 335 is at least one in polyolefin, polycarbonate, PLA and polyethylene terephthalate.Organic solid particle 337 is at least one in the solid particle of polyacrylate, the solid particle of polyurethane, the solid particle of polystyrene and the solid particle of silicone.Organic hollow particle 338 is at least one in polystyrene hollow-particle, polyacrylic acid hollow-particle, polystyrene hollow-particle, urethane acrylate hollow-particle, epoxy acrylate hollow-particle, polyester acrylate hollow-particle, polyether acrylate hollow-particle and epoxy resin hollow particle.
In the present embodiment, the thickness of reflectance coating matrix 331 can be 50 μm ~ 300 μm.Certainly, in other embodiments, the thickness of reflectance coating matrix 331 also can be other values, and the thickness of reflectance coating matrix 331 can adjust according to actual needs.
In the present embodiment, the particle diameter of organic solid particle 337 is 0.1 μm ~ 30 μm.The shape of organic solid particle 337 can be spherical and at least one in elliposoidal.Be appreciated that the organic solid particle 337 of the two kinds of shapes contained in reflectance coating 330 coordinates the reflecting interface that can increase light, and then improve the reflectivity of the light entered in reflectance coating 330.
In order to improve the suppleness of reflectance coating 330, such as, organic hollow particle 338 external diameter is 0.1 μm ~ 30 μm, internal diameter is 0.05 μm ~ 8 μm, when reflectance coating 330 is squeezed or bends, the reversible deformation of the stressed generation of organic hollow particle 338, the extruding force that reflectance coating 330 is subject to can be partially absorbed, increase suppleness and the firmness of reflectance coating 330.In addition, organic hollow particle 338 has outside surface and inside surface two reflecting interfaces, improves the reflectivity of the light entered in reflectance coating 330.
Please refer to Fig. 4, is the structural representation of reflectance coating 330a in another embodiment.
Reflectance coating 330a comprises reflectance coating matrix 331a, be located at the coating 334 of reflectance coating matrix 331a side, be located at the hard layer 332a of coating 334 side, hard layer 332a is provided with groove 333a away from the side of coating 334, wherein, hard layer 332a and light guide plate 320 attach.
In the present embodiment, the material of hard layer 332a is curable resin.Such as, the material of hard layer 332a is one or more in ammonia ester, acrylic compounds, organosilicon, alkyd, amidocarbonic acid class.
In the present embodiment, the method for making of hard layer 332a is as follows:
With coating machine even spread one deck photosensitive resin in coating 334, on photosensitive resin layer, extrude groove 333a by the pressing mold with convex epirelief again, by irradiating ultraviolet light, make photosensitive resin layer occur to solidify completely, finally remove pressing mold, there is after forming solidification the surface of groove 333a.
It should be noted that, the material of hard layer 332a can be heat reactive resin, by the method for heating, forms the hard layer with groove structure.
Above-mentioned hard layer 332a can significantly improve the skin hardness of reflectance coating 330a, improves the mechanical property of reflectance coating, reduce the scuffing in processing and use procedure, wrinkling, cut the bad phenomenon such as generation burr; Meanwhile, hard layer 332a is formed in coating 334, coating 334 is covered, thus can prevent micropore or the space adsorption moisture of reflectance coating coating 334 inside, improves the resistance to high humidity environment performance of reflectance coating; In addition, due in the production run of backlight, some naked eyes are difficult to resolution, the foreign matter of size below 20 microns can drop between light guide plate 320 and reflectance coating 330a, and the surface of hard layer 332a is provided with groove 333a, the surface area fitted in hard layer 332a and light guide plate 320 surface reduces, the area making foreign matter and reflectance coating 330a and light guide plate 320 occur to rub can reduce, and, foreign matter can fall between groove 333a along with the vibration of backlight module 300, thus reduces the probability that reflectance coating 330 and light guide plate 320 scratched by foreign matter.
In order to reduce the possibility that reflectance coating 330a and light guide plate 320 are scratched by foreign matter to a greater degree, such as, groove 333a can be multiple, improves the space holding foreign matter, thus reduces the possibility that reflectance coating 330a and light guide plate 320 scratched by foreign matter.
Be appreciated that because the size of foreign matter is generally below 20 μm, in the present embodiment, the height of groove 333a is 20 μm ~ 25 μm, and the A/F of groove 333a is 40 μm ~ 60 μm, like this, groove 333a can not only store foreign matter, is also conducive to foreign matter simultaneously and discharges from groove 333a.
In order to make foreign matter more easily enter in groove 333a, such as, the upper shed width of groove 333a is greater than under shed width, and the xsect as groove 33a is trapezoidal, like this, foreign matter can be made more easily to fall in groove 333a.
In present embodiment, the material of reflectance coating matrix 331a is at least one in polyolefin, polycarbonate, PLA and polyethylene terephthalate.
In the present embodiment, the thickness of reflectance coating matrix 331a can be 50 μm ~ 300 μm.Certainly, in other embodiments, the thickness of reflectance coating matrix 331a also can be other values, and the thickness of reflectance coating matrix 331a can adjust according to actual needs.
In present embodiment, the thickness of coating 334 is 1 μm ~ 25 μm.The material of coating 334 is the potpourri of adhesive, organic solid particle 337a and organic hollow particle 338a.After adhesive mixes with organic solid particle 337a and organic hollow particle 338a, be coated on reflectance coating matrix 331a, when after adhesive solidification, organic solid particle 337a and organic hollow particle 338a can be made to be fixed on reflectance coating matrix 331a, and then to make adhesive, organic solid particle 337a and organic hollow particle 338a form the coating 334 be arranged on reflective substrate 331a.
In present embodiment, organic solid particle 337a is at least one in the solid particle of polyacrylate, the solid particle of polyurethane, the solid particle of polystyrene and the solid particle of silicone.Organic hollow particle 338a is at least one in polystyrene hollow-particle, polyacrylic acid hollow-particle, polystyrene hollow-particle, urethane acrylate hollow-particle, epoxy acrylate hollow-particle, polyester acrylate hollow-particle, polyether acrylate hollow-particle and epoxy resin hollow particle.
In the present embodiment, the particle diameter of organic solid particle 337a is 0.1 μm ~ 30 μm.The shape of organic solid particle can be spherical and at least one in elliposoidal.Be appreciated that the organic solid particle of the two kinds of shapes contained in reflectance coating 330a coordinates the reflecting interface that can increase light, and then improve the reflectivity of the light entered in reflectance coating 330a.
In order to improve the suppleness of reflectance coating 330a, such as, organic hollow particle 338a external diameter is 0.1 μm ~ 30 μm, internal diameter is 0.05 μm ~ 8 μm, when reflectance coating 330a is squeezed or bends, the reversible deformation of the stressed generation of organic hollow particle 338a, the extruding force that reflectance coating 330a is subject to can be partially absorbed, increase suppleness and the firmness of reflectance coating 330a.In addition, organic hollow particle 338a has outside surface and inside surface two reflecting interfaces, improves the reflectivity of the light entered in reflectance coating 330a.
The reflectance coating of above-mentioned display device, by arranging hard layer, can significantly improve the skin hardness of reflectance coating, improves the mechanical property of reflectance coating; Meanwhile, hard layer can prevent micropore or the space adsorption moisture of reflectance coating inside, improves the resistance to high humidity environment performance of reflectance coating; In addition, be provided with groove by the surface at hard layer, reduce the probability that reflectance coating and light guide plate are scratched by foreign matter.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a display device, it is characterized in that, the backlight module comprising housing, be contained in the liquid crystal panel in described housing and be connected with described liquid crystal panel, described backlight module comprises: the optical thin film attached successively, light guide plate and reflectance coating, and described optical thin film attaches mutually with described liquid crystal panel;
Described reflectance coating comprises reflectance coating matrix and hard layer;
Described reflectance coating matrix comprises plastic basis material and the organic solid particle interspersed among in described plastic basis material and organic hollow particle, is formed with bubble in described plastic basis material;
Described hard layer is located at least side of described reflectance coating matrix, and described hard layer is provided with groove away from the side of described reflectance coating matrix, and described hard layer and described light guide plate attach.
2. display device according to claim 1, is characterized in that, described reflectance coating matrix is at least provided with coating in side, and comprise organic solid particle and organic hollow particle in described coating, described hard layer is located in described coating.
3. display device according to claim 1 and 2, is characterized in that, the particle diameter of described organic solid particle is 0.1 μm ~ 30 μm.
4. display device according to claim 1 and 2, is characterized in that, the external diameter of described organic hollow particle is 0.1 μm ~ 30 μm, and the internal diameter of described organic hollow particle is 0.05 μm ~ 8 μm.
5. display device according to claim 2, is characterized in that, the thickness of described coating is 1 μm ~ 25 μm.
6. display device according to claim 1, is characterized in that, the side of described hard layer is provided with multiple groove.
7. display device according to claim 6, is characterized in that, the height of described groove is 20 μm ~ 25 μm.
8. display device according to claim 6, is characterized in that, the A/F of described groove is 40 μm ~ 60 μm.
9. display device according to claim 1, is characterized in that, the material of described hard layer is curable resin.
10. display device according to claim 9, is characterized in that, the material of described hard layer is one or more in ammonia ester, acrylic compounds, organosilicon, alkyd, amidocarbonic acid class.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739223.5U CN204241806U (en) | 2014-11-28 | 2014-11-28 | Display device and reflectance coating thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739223.5U CN204241806U (en) | 2014-11-28 | 2014-11-28 | Display device and reflectance coating thereof |
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| CN204241806U true CN204241806U (en) | 2015-04-01 |
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| CN201420739223.5U Active CN204241806U (en) | 2014-11-28 | 2014-11-28 | Display device and reflectance coating thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974664A (en) * | 2016-06-21 | 2016-09-28 | 青岛海信电器股份有限公司 | Backlight module, display device and manufacturing method of backlight module |
| CN106908886A (en) * | 2017-04-18 | 2017-06-30 | 宁波长阳科技股份有限公司 | A kind of property endured coating reflectance coating high and preparation method thereof |
-
2014
- 2014-11-28 CN CN201420739223.5U patent/CN204241806U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974664A (en) * | 2016-06-21 | 2016-09-28 | 青岛海信电器股份有限公司 | Backlight module, display device and manufacturing method of backlight module |
| CN105974664B (en) * | 2016-06-21 | 2019-12-31 | 青岛海信电器股份有限公司 | Backlight module, display device and manufacturing method of backlight module |
| CN106908886A (en) * | 2017-04-18 | 2017-06-30 | 宁波长阳科技股份有限公司 | A kind of property endured coating reflectance coating high and preparation method thereof |
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Address after: 517001 Heyuan, Guangdong Jiangdong new district, Linjiang Town, Lian Xin Village, Po Po, Henan Road, Lang Lang Industrial Park first, second Patentee after: Guangdong Xuan Long Industrial Co., Ltd. Address before: 523000 A building, 352 Xiangyang Road, Shigu management area, Tangxia Town, Dongguan, Guangdong. Patentee before: Dongguan Xuan Lang Industrial Company Limited |
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| CP03 | Change of name, title or address |