High-brightness silver film, reflective sheet and backlight module

Abstract

The application discloses a high-brightness silver film, which comprises a silver film, wherein the silver film comprises a base layer, an enhancement layer, a reflection base layer, a regulation layer and a protection layer; the top of the base layer is provided with the enhancement layer; the top of the enhancement layer is provided with the reflection base layer; the top of the reflection base layer is provided with the regulation layer; the top of the regulation layer is provided with the protection layer; the base layer is an ultrathin biaxial stretching PET film material; the enhancement layer is a titanium acid ester coupling agent and nano-silicon dioxide composite coating material; the reflection base layer is a nano-silver particle coating; the regulation layer is a fluorine-containing acrylic ester resin material; and the protection layer is a siloxane modified polyurethane material. The application relates to a high-brightness silver film, a reflection sheet and a backlight module, and has the characteristics of high silver film refractive index, good impact resistance of the reflection sheet and convenient combination of the module.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of optical films, and particularly relates to a high-brightness silver film, a reflective sheet and a backlight module. BACKGROUND

[0002] Optical reflection films have the function of reflecting the light source of a light guide plate in an LCD backlight module. Common specifications on the market are white reflective sheets, mainly products of Mitsubishi and Toray Corporation, and similar products of companies such as South Asia, Changhong, Changyang in China. Or there are reflective sheets in the form of multi-layer stacking extrusion, represented by the ESR of 3M Company. The former is mainly used in large LCD display screens, and the latter is commonly used in small and medium-sized display screens, from mobile phones to tablets and notebook computers. The silver reflective film used by Guangzhi Optoelectronics Company mainly focuses on the backlight module of LCD screens of mobile phones and tablets, and has a considerable product share in the domestic reflective sheet market.

[0003] The current high-brightness silver film has insufficient refractive index, which affects the use effect, and the protective effect of the reflective sheet is insufficient, which is easy to be damaged by impact, and the combination mode of the backlight module is not convenient and fast enough. Therefore, it is necessary to design a high-brightness silver film, a reflective sheet and a backlight module. SUMMARY

[0004] The purpose of the present application is to provide a packaging mechanism for photovoltaic polyester film to solve the problems mentioned in the background art.

[0005] In order to solve the above problems, the present application provides a technical scheme:

[0006] A high-brightness silver film, comprising a silver film, the silver film comprising a base layer, an enhancement layer, a reflection base layer, a control layer and a protective layer, the top of the base layer is provided with the enhancement layer, the top of the enhancement layer is provided with the reflection base layer, the top of the reflection base layer is provided with the control layer, and the top of the control layer is provided with the protective layer, the base layer is an ultra-thin biaxially stretched PET film material, the enhancement layer is a titanium acid ester coupling agent and nano-silicon dioxide composite coating material, the reflection base layer is a nano-silver particle coating, the control layer is a fluorine-containing acrylic ester resin material, and the protective layer is a siloxane modified polyurethane material.

[0007] A high-brightness reflective sheet, comprising a high-brightness silver film, further comprising a reflective sheet, the top of the silver film is provided with a reflective sheet, the reflective sheet comprises a reinforcing layer, a reflective layer one, a reflective layer two, a reflective layer three, a buffer layer, a supporting layer, the top of the reinforcing layer is provided with the reflective layer one, the top of the reflective layer one is provided with the reflective layer three, the top of the reflective layer three is provided with the buffer layer, the top of the buffer layer is provided with the supporting layer, the reinforcing layer is a graphene and copper nanowire composite material, the reflective layer one is a silver ion evaporation film material, the reflective layer two is a TiO2 / Al2O3 alternating nanometer layer material, the reflective layer three is a white polyester coating material, the buffer layer is a UV cured acrylic resin material, and the supporting layer is an ultra-flat PET film material.

[0008] A backlight module, comprising a high-brightness reflective sheet, further comprising a back plate, the top of the back plate is in contact with a PCB substrate, the top of the PCB substrate is in contact with a reflective sheet, the top of the reflective sheet is in contact with a diffusion plate, the top of the diffusion plate is fixedly connected with two symmetrically distributed fixing seats, the inside of the back plate is slidably sleeved with a connecting column, the connecting column is slidably connected with the fixing seat, the connecting column is slidably connected with the PCB substrate, the reflective sheet and the diffusion plate respectively, the inside of the reflective sheet is slidably sleeved with a plurality of uniformly distributed supporting seats, the supporting seats are in contact with the diffusion plate, the fixing seat is provided with a combination mechanism, and the supporting seat is provided with a supporting mechanism.

[0009] As preferred, the combination mechanism comprises a sliding block, the inside of the fixing seat is slidably sleeved with a sliding block, the outer side of the sliding block is fixedly connected with a sliding rod, the outer side of the sliding rod is provided with a first spring, the sliding rod is slidably connected with the fixing seat, the outer side of the sliding rod is fixedly connected with a magnetic attraction block, the magnetic attraction block is slidably connected with the fixing seat, one end of the magnetic attraction block is fixedly connected with a plug-in block, the plug-in block is slidably connected with the fixing seat, the plug-in block is slidably connected with the connecting column, the other end of the magnetic attraction block is fixedly connected with a pull rod, the pull rod is slidably connected with the fixing seat, and the inside of the fixing seat is fixedly connected with a magnet. Through the design of the combination mechanism, the combination use of the module is facilitated.

[0010] As preferred, one end of the first spring is fixedly connected with the sliding block, and the other end of the first spring is fixedly connected with the fixing seat. Through the design of the first spring, the acting force of the first spring can act on the sliding block.

[0011] As preferred, the inside of the connecting column is provided with a plug-in groove, and the inside of the plug-in groove is slidably connected with a plug-in block. Through the design of the plug-in groove, the plug-in block can slide in the connecting column.

[0012] As preferred, the supporting mechanism comprises a fixed rod, the inside of the supporting seat is fixedly connected with the fixed rod, the outside of the fixed rod is provided with a second spring, the outside of the fixed rod is slidably sleeved with a supporting block, one end of the supporting block is fixedly connected with a bouncing ball, the bouncing ball is fixedly connected with the supporting seat, the inside of the other end of the supporting block is movably sleeved with a clamping ball, the clamping ball is movably connected with the supporting seat, and the clamping ball is movably connected with the reflecting sheet. Through the design of the supporting mechanism, the inside of the module can be supported.

[0013] As preferred, one end of the second spring is fixedly connected with the supporting block, and the other end of the second spring is fixedly connected with the supporting seat. Through the design of the second spring, the force of the second spring can act on the supporting block.

[0014] As preferred, the inside of the reflecting sheet is provided with a groove, and the inside of the groove is movably sleeved with the clamping ball. Through the design of the groove, the clamping ball can roll in the groove.

[0015] The application has the following beneficial effects: the application relates to a high-brightness silver film, a reflecting sheet and a backlight module, has the characteristics of high silver film refractive index, good reflecting sheet impact resistance and convenient module combination, and compared with a traditional photovoltaic polyester film packaging mechanism, the photovoltaic polyester film packaging mechanism has the following beneficial effects:

[0016] Firstly, the high-brightness silver film and the reflecting sheet break through the super-flat surface (roughness < 2nm) and wide-spectrum high reflectivity (visible light region > 98.5%) through the design of multiple nano structures, significantly improve the brightness uniformity and picture sharpness of the display device. The gradient refractive index control layer effectively reduces the interface reflection loss, and the innovative nano silver / titanium dioxide composite structure not only enhances the light absorption efficiency, but also reduces the risk of light guide plate adsorption damage through the microstructure buffer layer.

[0017] Secondly, the connection column can be limited through the insertion of the insertion block and the connecting column, so that the combination and fixation of the back plate, the reflecting sheet, the PCB substrate and the diffusion plate can be realized, the quick combination of the backlight module can be realized, the working efficiency is improved, the supporting seat is arranged between the PCB substrate and the diffusion plate through the action of the multiple supporting seats, the purpose of improving the structural strength can be achieved, and the supporting seat is convenient to install and use. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to facilitate the description, the application is described in detail by the following specific embodiments and drawings.

[0019] Figure 1 It is a structural schematic diagram of the embodiment 1 of the application.

[0020] Figure 2 It is a structural schematic diagram of the embodiment 2 of the application.

[0021] Figure 3 is a structure perspective view of embodiment 3 of the present application;

[0022] Figure 4 is a partial structure perspective cutaway view of the present application Figure 3 ;

[0023] Figure 5 is an enlarged view of A of the present application Figure 4 ;

[0024] Figure 6 is an enlarged view of B of the present application Figure 4 .

[0025] In the figure: 1, silver film; 11, base layer; 12, reinforcing layer; 13, reflective base layer; 14, regulation layer; 15, protective layer; 2, reflective sheet; 21, reinforcing layer; 22, reflective layer one; 23, reflective layer two; 24, reflective layer three; 25, buffer layer; 26, support layer; 3, backboard; 4, PCB substrate; 5, diffusion plate; 6, connecting column; 7, fixing seat; 8, combination mechanism; 9, supporting mechanism; 10, support seat; 81, sliding block; 82, sliding rod; 83, first spring; 84, magnetic suction block; 85, pull rod; 86, plug block; 87, magnet; 88, insertion slot; 91, fixed rod; 92, second spring; 93, support block; 94, pinball; 95, ball; 96, groove. DETAILED DESCRIPTION

[0026] Embodiment 1:

[0027] Please refer to Figure 1 , a packaging mechanism of photovoltaic polyester film, including silver film 1, the silver film 1 includes base layer 11, reinforcing layer 12, reflective base layer 13, regulation layer 14, protective layer 15, the top of the base layer 11 is provided with reinforcing layer 12, the top of the reinforcing layer 12 is provided with reflective base layer 13, the top of the reflective base layer 13 is provided with regulation layer 14, the top of the regulation layer 14 is provided with protective layer 15, the base layer 11 is ultra-thin biaxial stretching PET film material, the reinforcing layer 12 is titanium acid ester coupling agent and nano silicon dioxide composite coating material, the reflective base layer 13 is nano silver particle coating, the regulation layer 14 is fluorine-containing acrylic ester resin material, and the protective layer 15 is siloxane modified polyurethane material.

[0028] The use state of the embodiment is: when used, the base layer 11 adopted is an ultra-thin biaxially stretched PET film material, which has the characteristics of high light transmittance, and the surface is flat, which can improve the uniformity of the coating, and the tensile resistance is good; the reinforcing layer 12 adopted is a titanate coupling agent and nano-silicon dioxide composite coating, which can form a flexible interface layer, has good stress buffering effect, and improves the impact resistance; the reflective base layer 13 adopted is a nano-silver particle coating, which realizes wide-spectrum high reflectivity (>98.5%), high-efficiency antibacterial performance (bacteriostatic rate >99.9%) and moisture and heat resistance (decay <0.5% under the environment of 85°C / 85%RH), significantly improves the optical efficiency and long-term reliability of the display device; the control layer 14 adopted is a fluorine-containing acrylic ester resin material, which realizes the synergistic advantages of super-hydrophobicity, wide-temperature-range stability (-40°C to 150°C) and high light transmittance (>99%), significantly improves the surface protection and optical performance of the display device; and the protective layer 15 adopted is a silicone-modified polyurethane material, which realizes excellent flexibility (elongation at break >800%), high-temperature resistance (long-term use temperature up to 150°C) and weather resistance (gloss retention rate >90% after QUV accelerated aging for 3000 hours), significantly improves the environmental adaptability and mechanical reliability of the elastomer material.

[0029] Embodiment 2

[0030] Please refer to Figure 2 A high-brightness reflective sheet includes a high-brightness silver film, and further includes a reflective sheet 2, the top of the silver film 1 is provided with the reflective sheet 2, the reflective sheet 2 includes a reinforcing layer 21, a reflection layer one 22, a reflection layer two 23, a reflection layer three 24, a buffer layer 25, and a support layer 26, the top of the reinforcing layer 21 is provided with the reflection layer one 22, the top of the reflection layer one 22 is provided with the reflection layer three 24, the top of the reflection layer three 24 is provided with the buffer layer 25, and the top of the buffer layer 25 is provided with the support layer 26, the reinforcing layer 21 is a graphene and copper nanowire composite material, the reflection layer one 22 is a silver ion evaporation film material, the reflection layer two 23 is a TiO2 / Al2O3 alternating nano-layer material, the reflection layer three 24 is a white polyester coating material, the buffer layer 25 is a UV-cured acrylic resin material, and the support layer 26 is an ultra-flat PET film material.

[0031] The use state of the embodiment is: when used, the reinforcing layer 21 adopted is a graphene and copper nanowire composite material, which realizes ultra-high electrical conductivity (electrical conductivity >1×10 6 S / m), excellent oxidation resistance (resistance change <5% after 1000 hours of air exposure) and high mechanical flexibility (bending radius <0.5mm), significantly improving the performance and reliability of flexible electronic devices, the reflection layer one 22 adopted is a silver ion evaporation film material, which realizes high electrical conductivity (electrical conductivity >1×106 S / m), high efficient antibacterial (bacteriostatic rate >99.9%) and oxidation stability (resistance change <2% after 500 hours of air exposure), significantly improving the functionality and reliability of electronic devices and medical equipment, the reflective layer two 23 is TiO2 / Al2O3 alternating nanolayer material, realizing high hardness (HV >2000), wide spectrum high transmittance (>95%) and high temperature oxidation resistance (>500℃ long-term stability), significantly improving the reliability and functionality of optical elements and semiconductor devices, the reflective layer three 24 is white polyester coating material, realizing super weather resistance (QUV accelerated aging 5000 hours gloss retention rate >90%), high hardness (pencil hardness ≥2H) and high reflectivity (>85%), while being environmentally friendly and heavy metal free (complying with RoHS / FDA standards), significantly improving the aesthetics and durability of building curtain wall and household appliance shell, the buffer layer 25 is UV-cured acrylic resin material, realizing super-fast curing (<10 seconds), high hardness (pencil hardness ≥2H) and excellent chemical resistance (acid and alkali resistance >500 hours without change), while being environmentally friendly and low VOC (<50g / L), significantly improving the production efficiency and durability of coatings, inks and optical elements, the support layer 26 is ultra-flat PET film material, realizing surface roughness Ra <0.1 μm, high transmittance >95% and high temperature resistance to 150℃, significantly improving the clarity and stability of optical display and flexible electronic devices.

[0032] Example 3:

[0033] Please refer to Figures 3-6 A backlight module, comprising a high-brightness reflector sheet, further comprising a back plate 3, the top of the back plate 3 is in contact with a PCB substrate 4, the top of the PCB substrate 4 is in contact with a reflector sheet 2, the top of the reflector sheet 2 is in contact with a diffusion plate 5, the top of the diffusion plate 5 is fixedly connected with two symmetrically distributed fixing seats 7, the inside of the back plate 3 is slidably sleeved with a connecting column 6, the connecting column 6 is slidably connected with the fixing seat 7, the connecting column 6 is slidably connected with the PCB substrate 4, the reflector sheet 2 and the diffusion plate 5 respectively, the inside of the reflector sheet 2 is slidably sleeved with a plurality of uniformly distributed supporting seats 10, the supporting seats 10 are in contact with the diffusion plate 5, the fixing seat 7 is provided with a combination mechanism 8, and the supporting seat 10 is provided with a supporting mechanism 9.

[0034] The combination mechanism 8 comprises a sliding block 81, the inside of the fixed seat 7 is sleeved with the sliding block 81, the outer side of the sliding block 81 is fixedly connected with a sliding rod 82, the outer side of the sliding rod 82 is provided with a first spring 83, one end of the first spring 83 is fixedly connected with the sliding block 81, the other end of the first spring 83 is fixedly connected with the fixed seat 7, the first spring 83 is designed so that the force of the first spring 83 can act on the sliding block 81, the sliding rod 82 is slidably connected with the fixed seat 7, the outer side of the sliding rod 82 is fixedly connected with a magnetic block 84, the magnetic block 84 is slidably connected with the fixed seat 7, one end of the magnetic block 84 is fixedly connected with an insertion block 86, the insertion block 86 is slidably connected with the fixed seat 7, the insertion block 86 is slidably connected with the connecting column 6, the inside of the connecting column 6 is provided with an insertion slot 88, the insertion slot 88 is slidably connected with the insertion block 86, the insertion slot 88 is designed so that the insertion block 86 can slide in the inside of the connecting column 6, the other end of the magnetic block 84 is fixedly connected with a pull rod 85, the pull rod 85 is slidably connected with the fixed seat 7, the inside of the fixed seat 7 is fixedly connected with a magnet 87, the combination mechanism 8 is designed so as to facilitate the combination use of the module.

[0035] The supporting mechanism 9 comprises a fixed rod 91, the inside of the supporting seat 10 is fixedly connected with the fixed rod 91, the outer side of the fixed rod 91 is provided with a second spring 92, one end of the second spring 92 is fixedly connected with a supporting block 93, the other end of the second spring 92 is fixedly connected with the supporting seat 10, the second spring 92 is designed so that the force of the second spring 92 can act on the supporting block 93, the outer side of the fixed rod 91 is slidably sleeved with the supporting block 93, one end of the supporting block 93 is fixedly connected with a bouncing ball 94, the bouncing ball 94 is fixedly connected with the supporting seat 10, the other end of the supporting block 93 is movably sleeved with a clamping ball 95, the clamping ball 95 is movably connected with the supporting seat 10, the clamping ball 95 is movably connected with the reflecting sheet 2, the inside of the reflecting sheet 2 is provided with a recess 96, the recess 96 is movably sleeved with the clamping ball 95, the recess 96 is designed so that the clamping ball 95 can roll in the inside of the recess 96, the supporting mechanism 9 is designed so as to support the inside of the module.

[0036] The use state of the embodiment is: when the backlight module needs to be combined, the connecting column 6 is inserted into the back plate 3, the PCB substrate 4, the diffusion plate 5 and the reflecting sheet 2 respectively, then the pull rod 85 is pushed into the inside of the fixed seat 7, the pull rod 85 drives the magnetic block 84 to move, so that the magnetic block 84 is separated from the magnet 87, at this time, under the elastic action of the stretched first spring 83, the magnetic block 84 is given a counter force, the magnetic block 84 drives the insertion block 86 to move horizontally, so that the insertion block 86 is inserted into the insertion slot 88 of the connecting column 6, at this time, the connecting column 6 can be limited, and the combination and fixing of the backlight module can be realized, which is convenient and fast.

[0037] When the support seat 10 needs to be installed and used, before the reflecting sheet 2 is assembled, the support seat 10 is directly inserted into the reflecting sheet 2, the reflecting sheet 2 extrudes and pushes the clamping ball 95 to move, the clamping ball 95 is extruded and pushed to roll into the support seat 10, the clamping ball 95 drives the supporting block 93 to move, the supporting block 93 extrudes the elastic ball 94, at the same time, the supporting block 93 slides along the fixed rod 91 and extrudes the second spring 92, when the support seat 10 is completely inserted into the reflecting sheet 2, under the elastic action of the second spring 92, the supporting block 93 is given a counter thrust, the clamping ball 95 is pushed into the groove 96 in the reflecting sheet 2, at this time, the support seat 10 can be installed and fixed, the support seat 10 is arranged between the PCB substrate 4 and the diffusion plate 5, can play a role of internal support, can play a role of improving the structural strength, and the support seat 10 is convenient to install and use.

[0038] The basic principle and main features of the present application and the advantages of the present application are shown and described above, those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the present application, under the premise of not departing from the spirit and scope of the present application, the present application can have various changes and improvements, these changes and improvements all fall within the scope of the present application, the scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-brightness silver film, comprising a silver film (1), characterized in that: The silver film (1) includes a base layer (11), a reinforcing layer (12), a reflective substrate (13), a regulating layer (14), and a protective layer (15). The base layer (11) is topped with the reinforcing layer (12), the reinforcing layer (12) is topped with the reflective substrate (13), the reflective substrate (13) is topped with the regulating layer (14), and the regulating layer (14) is topped with the protective layer (15). The base layer (11) is made of ultra-thin biaxially stretched PET film, the reinforcing layer (12) is made of a composite coating of titanate coupling agent and nano-silica, the reflective substrate (13) is made of nano-silver particle coating, the regulating layer (14) is made of fluorinated acrylate resin, and the protective layer (15) is made of siloxane-modified polyurethane.

2. A high-brightness reflective sheet, characterized in that: The high-brightness silver film according to claim 1 further includes a reflective sheet (2), wherein the silver film (1) is provided with a reflective sheet (2) on top, and the reflective sheet (2) includes a reinforcing layer (21), a first reflective layer (22), a second reflective layer (23), a third reflective layer (24), a buffer layer (25), and a support layer (26). The first reflective layer (22) is provided on top of the reinforcing layer (21), and the third reflective layer (24) is provided on top of the first reflective layer (22). The part is provided with a buffer layer (25), and a support layer (26) is provided on the top of the buffer layer (25). The reinforcing layer (21) is a composite material of graphene and copper nanowires. The first reflective layer (22) is a vapor-deposited silver ion film material. The second reflective layer (23) is a TiO2 / Al2O3 alternating nanolayer material. The third reflective layer (24) is a white polyester coating material. The buffer layer (25) is a UV-cured acrylic resin material. The support layer (26) is an ultra-flat PET film material.

3. A backlight module, characterized in that: The high-brightness reflector as described in claim 2 further includes a back plate (3), the top of which contacts a PCB substrate (4), the top of which contacts a reflector (2), the top of which contacts a diffuser plate (5), and the top of which is fixedly connected to two symmetrically distributed fixing seats (7). A connecting post (6) is slidably sleeved inside the back plate (3), the connecting post (6) is slidably connected to the fixing seat (7), and the connecting post (6) is slidably connected to the PCB substrate (4), the reflector (2), and the diffuser plate (5) respectively. A plurality of evenly distributed support seats (10) are slidably sleeved inside the reflector (2), the support seats (10) are in contact with the diffuser plate (5), a combination mechanism (8) is provided on the fixing seat (7), and a support mechanism (9) is provided on the support seat (10).

4. A backlight module according to claim 3, characterized in that: The combined mechanism (8) includes a slider (81), which is slidably sleeved inside the fixed base (7). A slide rod (82) is fixedly connected to the outside of the slider (81), and a first spring (83) is provided on the outside of the slide rod (82). The slide rod (82) is slidably connected to the fixed base (7). A magnetic block (84) is fixedly connected to the outside of the slide rod (82). The magnetic block (84) is slidably connected to the fixed base (7). One end of the magnetic block (84) is fixedly connected to an insert (86), which is slidably connected to the fixed base (7) and to a connecting post (6). The other end of the magnetic block (84) is fixedly connected to a pull rod (85), which is slidably connected to the fixed base (7). A magnet (87) is fixedly connected inside the fixed base (7).

5. A backlight module according to claim 4, characterized in that: One end of the first spring (83) is fixedly connected to the slider (81), and the other end of the first spring (83) is fixedly connected to the fixed seat (7).

6. A backlight module according to claim 3, characterized in that: The connecting post (6) has a slot (88) inside, and a plug (86) is slidably connected inside the slot (88).

7. A backlight module according to claim 3, characterized in that: The support mechanism (9) includes a fixed rod (91), which is fixedly connected inside the support base (10). A second spring (92) is provided on the outside of the fixed rod (91). A support block (93) is slidably sleeved on the outside of the fixed rod (91). A ball (94) is fixedly connected to one end of the support block (93). The ball (94) is fixedly connected to the support base (10). A retaining ball (95) is movably sleeved inside the other end of the support block (93). The retaining ball (95) is movably connected to the support base (10) and movably connected to the reflector (2).

8. A backlight module according to claim 7, characterized in that: One end of the second spring (92) is fixedly connected to the support block (93), and the other end of the second spring (92) is fixedly connected to the support seat (10).

9. A backlight module according to claim 3, characterized in that: The reflective sheet (2) has a groove (96) inside, and a retaining ball (95) is movably fitted inside the groove (96).

Images