High-brightness silver film, reflector plate and backlight module

Abstract

The high-brightness silver film comprises a silver film body, the silver film body comprises a base layer, an enhancement layer, a reflection base layer, a regulation and control layer and a protection layer, the enhancement layer is arranged at the top of the base layer, the reflection base layer is arranged at the top of the enhancement layer, the regulation and control layer is arranged at the top of the reflection base layer, and the protection layer is arranged at the top of the regulation and control layer. The base layer is made of an ultrathin biaxial stretching PET (Polyethylene Terephthalate) film material, the enhancement layer is made of a titanate coupling agent and nano silicon dioxide composite coating material, the reflection base layer is a nano silver particle coating, the regulation and control layer is made of a fluorinated acrylate resin material, and the protection layer is made of a siloxane modified polyurethane material. The invention relates to a high-brightness silver film, a reflector plate and a backlight module. The high-brightness silver film has the advantages that the refractive index of the silver film is high, the impact resistance effect of the reflector plate is good, and the module is convenient to combine and use.

Description

Technical Field

[0001] The present invention belongs to the technical field of optical films, and particularly relates to a high-brightness silver film, a reflector, and a backlight module. Background Art

[0002] Optical reflection films play a role in reflecting the light source of the light guide plate in the LCD backlight module. Common specifications on the market include white reflectors, mainly products of Japanese companies such as Mitsubishi and Toray Industries, Inc., and there are also similar products from companies such as South Asia, Changhong, and Changyang in China; or reflectors in the form of multi-layer stacked extrusion, represented by the ESR of 3M Company. The former is mostly used in large LCD displays, and the latter is commonly found in small and medium-sized display products, from mobile phones to tablets and laptops. Guangzhi Optoelectronics Company uses silver reflection films, mainly focusing on the backlight modules of mobile phones and tablet computers with LCD screens, and has a relatively large market share in the domestic reflector market.

[0003] Currently, when using the high-brightness silver film, the refractive index is insufficient, affecting the use effect, the protection effect of the reflector is insufficient, it is easily damaged by impact, and when assembling the backlight module, the assembly method is not convenient and fast enough. Therefore, it is necessary to design a high-brightness silver film, a reflector, and a backlight module. Summary of the Invention

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

[0005] To solve the above problems, the present invention provides a technical solution:

[0006] A high-brightness silver film includes a silver film, and the silver film includes a base layer, a reinforcing layer, a reflective base layer, a regulating layer, and a protective layer. The reinforcing layer is arranged on the top of the base layer, the reflective base layer is arranged on the top of the reinforcing layer, the regulating layer is arranged on the top of the reflective base layer, and the protective layer is arranged on the top of the regulating layer. The base layer is made of an ultra-thin biaxially stretched PET film material, the reinforcing layer is made of a composite coating material of titanate coupling agent and nano-silica, the reflective base layer is a nano-silver particle coating, the regulating layer is made of a fluorinated acrylate resin material, and the protective layer is made of a silicone-modified polyurethane material.

[0007] A high-brightness reflector includes a high-brightness silver film and also includes a reflector. The reflector is provided on the top of the silver film. The reflector includes a strengthening layer, a first reflection layer, a second reflection layer, a third reflection layer, a buffer layer, and a support layer. The first reflection layer is provided on the top of the strengthening layer. The third reflection layer is provided on the top of the first reflection layer. The buffer layer is provided on the top of the third reflection layer. The support layer is provided on the top of the buffer layer. The strengthening layer is made of a composite material of graphene and copper nanowires. The first reflection layer is made of an evaporated silver ion film material. The second reflection layer is made of a TiO 2 / Al 2 O 3 alternating nano-layer material. The third reflection layer is made of a white polyester coating material. The buffer layer is made of a UV-cured acrylic resin material. The support layer is made of a super-flat PET film material.

[0008] A backlight module includes a high-brightness reflector and also includes a backplane. A PCB substrate is in contact with the top of the backplane. A reflector is in contact with the top of the PCB substrate. A diffusion plate is in contact with the top of the reflector. Two symmetrically distributed fixing seats are fixedly connected to the top of the diffusion plate. A connecting column is slidably sleeved inside the backplane. The connecting column is slidably connected to the fixing seats. The connecting column is slidably connected to the PCB substrate, the reflector, and the diffusion plate respectively. A plurality of uniformly distributed support seats are slidably sleeved inside the reflector. The support seats are in contact with the diffusion plate. A combination mechanism is provided on the fixing seats. A support mechanism is provided on the support seats.

[0009] Preferably, the combination mechanism includes a slider. The slider is slidably sleeved inside the fixing seat. A sliding rod is fixedly connected to the outside of the slider. A first spring is provided on the outside of the sliding rod. The sliding rod is slidably connected to the fixing seat. A magnetic attraction block is fixedly connected to the outside of the sliding rod. The magnetic attraction block is slidably connected to the fixing seat. An insertion block is fixedly connected to one end of the magnetic attraction block. The insertion block is slidably connected to the fixing seat. The insertion block is slidably connected to the connecting column. A pull rod is fixedly connected to the other end of the magnetic attraction block. The pull rod is slidably connected to the fixing seat. A magnet is fixedly connected inside the fixing seat. By designing the combination mechanism, it is convenient to use the module in combination.

[0010] Preferably, one end of the first spring is fixedly connected to the slider, and the other end of the first spring is fixedly connected to the fixing seat. By designing the first spring, the acting force of the first spring can act on the slider.

[0011] Preferably, a slot is opened inside the connecting column, and the insertion block is slidably connected inside the slot. By designing the slot, the insertion block can slide inside the connecting column.

[0012] Preferably, the support mechanism includes a fixed rod fixedly connected inside the support base. A second spring is arranged outside the fixed rod, and a support block is slidably sleeved outside the fixed rod. One end of the support block is fixedly connected with a ball, which is fixedly connected with the support base. A clamping ball is movably sleeved inside the other end of the support block, which is movably connected with the support base and is also movably connected with the reflector. By designing the support mechanism, the inside of the module can be supported.

[0013] Preferably, one end of the second spring is fixedly connected with the support block, and the other end is fixedly connected with the support base. By designing the second spring, the acting force of the second spring can act on the support block.

[0014] Preferably, a groove is formed inside the reflector, and the clamping ball is movably sleeved inside the groove. By designing the groove, the clamping ball can roll inside the groove.

[0015] The beneficial effects of the present invention are as follows: The present invention relates to a high-brightness silver film, a reflector and a backlight module, which have the characteristics of high refractive index of the silver film, good impact resistance of the reflector and convenient combination and use of the module. In specific use, compared with the packaging mechanism of traditional photovoltaic polyester films, the packaging mechanism of this photovoltaic polyester film has the following beneficial effects:

[0016] First of all, through the multi-layer nanostructure design of the high-brightness silver film and the reflector, a breakthrough in ultra-flat surface (roughness < 2nm) and wide-spectrum high reflectivity (visible light region > 98.5%) has been achieved, significantly improving the brightness uniformity and picture sharpness of display devices. Its gradient refractive index regulation layer effectively reduces the interface reflection loss. The innovative nano-silver / titanium dioxide composite structure not only enhances the light absorption efficiency but also reduces the risk of adsorption damage to the light guide plate through the microstructure buffer layer;

[0017] Secondly, by designing the insertion of the insertion block and the connecting column, the connecting column can be limited, and then the combination and fixation of the backplane, reflector, PCB substrate and diffusion plate can be realized, enabling the rapid combination and use of the backlight module, improving work efficiency. Through the action of multiple support seats arranged between the PCB substrate and the diffusion plate, an internal support function can be achieved, which can enhance the structural strength. Moreover, the support seats are convenient to install and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] For ease of explanation, the present invention will be described in detail by the following specific embodiments and accompanying drawings.

[0019] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present invention;

[0020] Figure 2 It is a schematic structural diagram of Embodiment 2 of the present invention;

[0021] Figure 3 It is a three-dimensional structure diagram of Embodiment 3 of the present invention;

[0022] Figure 4 For the present invention Figure 3 Partial structure three-dimensional sectional view;

[0023] Figure 5 For the present invention Figure 4 Enlarged view at position A;

[0024] Figure 6 For the present invention Figure 4 Enlarged view at position B.

[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. First reflective layer; 23. Second reflective layer; 24. Third reflective layer; 25. Buffer layer; 26. Support layer; 3. Back plate; 4. PCB substrate; 5. Diffusion plate; 6. Connecting column; 7. Fixed seat; 8. Combining mechanism; 9. Supporting mechanism; 10. Support seat; 81. Slide block; 82. Slide bar; 83. First spring; 84. Magnetic attraction block; 85. Pull rod; 86. Insert block; 87. Magnet; 88. Slot; 91. Fixed rod; 92. Second spring; 93. Support block; 94. Ball; 95. Locking ball; 96. Groove. Detailed implementation manners

[0026] Embodiment 1:

[0027] Please refer to Figure 1 , a packaging mechanism for a photovoltaic polyester film, including a silver film 1, the silver film 1 includes a base layer 11, a reinforcing layer 12, a reflective base layer 13, a regulation layer 14, and a protective layer 15. The reinforcing layer 12 is provided on the top of the base layer 11, the reflective base layer 13 is provided on the top of the reinforcing layer 12, the regulation layer 14 is provided on the top of the reflective base layer 13, and the protective layer 15 is provided on the top of the regulation layer 14. The base layer 11 is made of an ultra-thin biaxially stretched PET film material, the reinforcing layer 12 is made of a titanate coupling agent and nano-silica composite coating material, the reflective base layer 13 is a nano-silver particle coating, the regulation layer 14 is made of a fluorinated acrylate resin material, and the protective layer 15 is made of a silicone-modified polyurethane material.

[0028] The usage state of this embodiment is as follows: When in use, the base layer 11 adopted is made of an ultra-thin biaxially stretched PET film material, which has the characteristics of high light transmittance, a flat surface that can improve the coating uniformity, and good tensile resistance. The reinforcing layer 12 adopted is a composite coating of titanate coupling agent and nano-silica, which can form a flexible interface layer, has a good stress buffering effect, and improves the impact resistance. The reflective base layer 13 adopted is a nano-silver particle coating, which realizes a wide-spectrum high reflectivity (>98.5%), high-efficiency antibacterial performance (bacteriostatic rate >99.9%), and heat and humidity resistance stability (attenuation <0.5% in an 85°C / 85% RH environment), significantly improving the optical efficiency and long-term reliability of the display device. The regulating layer 14 adopted is made of fluorinated acrylate resin material, which realizes the synergistic advantages of superhydrophobic anti-fouling (contact angle >120°), wide-temperature range stability (-40°C to 150°C), and high light transmittance (>99%), significantly improving the surface protection and optical performance of the display device. The protective layer 15 adopted is made of 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 3000 hours of QUV accelerated aging), significantly improving the environmental adaptability and mechanical reliability of the elastomer material.

[0029] Example 2:

[0030] Please refer to Figure 2 , a high-brightness reflector, including a high-brightness silver film, and further including a reflector 2. The reflector 2 is disposed on the top of the silver film 1. The reflector 2 includes a reinforcing layer 21, a first reflection layer 22, a second reflection layer 23, a third reflection layer 24, a buffer layer 25, and a support layer 26. The first reflection layer 22 is disposed on the top of the reinforcing layer 21, the third reflection layer 24 is disposed on the top of the first reflection layer 22, the buffer layer 25 is disposed on the top of the third reflection layer 24, and the support layer 26 is disposed on the top of the buffer layer 25. The reinforcing layer 21 is made of a composite material of graphene and copper nanowires, the first reflection layer 22 is made of an evaporated silver ion film material, the second reflection layer 23 is made of a TiO 2 / Al 2 O 3 alternating nano-layer material, the third reflection layer 24 is made of a white polyester coating material, the buffer layer 25 is made of a UV-cured acrylic resin material, and the support layer 26 is made of a super-flat PET film material.

[0031] The usage state of this embodiment is as follows: When in use, the reinforcing layer 21 adopted is made of a composite material of graphene and copper nanowires, which realizes ultra-high conductivity (conductivity >1×10 6S / m), excellent antioxidant property (resistance change < 5% after 1000 hours of air exposure), and high mechanical flexibility (bending radius < 0.5 mm), significantly improving the performance and reliability of flexible electronic devices. The reflective layer - 22 used is a silver ion evaporation coating material, achieving high conductivity (conductivity > 1×10 6 S / m), high - efficiency antibacterial property (bacteriostatic rate > 99.9%), and oxidation - resistant 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 - 23 used is TiO 2 / Al 2 O 3 alternating nano - layer material, achieving high hardness (HV > 2000), high light transmittance in a wide spectrum (> 95%), and high - temperature oxidation resistance (> 500°C for long - term stability), significantly improving the reliability and functionality of optical components and semiconductor devices. The reflective layer - 24 used is a white polyester coating material, achieving ultra - weather resistance (gloss retention rate > 90% after 5000 hours of QUV accelerated aging), high hardness (pencil hardness ≥ 2H), and high reflectivity (> 85%). At the same time, it is environmentally friendly and free of heavy metals (meeting RoHS / FDA standards), significantly improving the aesthetics and durability of building curtain walls and home appliance casings. The buffer layer - 25 used is a UV - curable acrylic resin material, achieving ultra - high - speed curing (< 10 seconds), high hardness (pencil hardness ≥ 2H), and excellent chemical resistance (no change after > 500 hours of acid - alkali resistance). At the same time, it is environmentally friendly with low VOC (< 50 g / L), significantly improving the production efficiency and durability of coatings, inks, and optical components. The support layer - 26 used is a super - flat PET film material, achieving a surface roughness Ra < 0.1 μm, high light transmittance > 95%, and high temperature resistance up to 150°C, significantly improving the clarity and stability of optical displays and flexible electronic devices.

[0032] Example 3:

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

[0034] Among them, the combination mechanism 8 includes a slider 81. The slider 81 is slidably sleeved inside the fixed seat 7. A slide rod 82 is fixedly connected to the outside of the slider 81. A first spring 83 is arranged on the outside of the slide rod 82. 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. By designing the first spring 83, the acting force of the first spring 83 can act on the slider 81. The slide rod 82 is slidably connected to the fixed seat 7. A magnetic attraction block 84 is fixedly connected to the outside of the slide rod 82. The magnetic attraction block 84 is slidably connected to the fixed seat 7. One end of the magnetic attraction block 84 is fixedly connected to an insertion block 86. The insertion block 86 is slidably connected to the fixed seat 7. The insertion block 86 is slidably connected to the connecting column 6. A slot 88 is opened inside the connecting column 6. The insertion block 86 is slidably connected inside the slot 88. By designing the slot 88, the insertion block 86 can slide inside the connecting column 6. The other end of the magnetic attraction block 84 is fixedly connected to a pull rod 85. The pull rod 85 is slidably connected to the fixed seat 7. A magnet 87 is fixedly connected inside the fixed seat 7. By designing the combination mechanism 8, it is convenient to use the modules in combination.

[0035] Among them, the support mechanism 9 includes a fixed rod 91. The fixed rod 91 is fixedly connected inside the support seat 10. A second spring 92 is arranged on the outside of the fixed rod 91. One end of the second spring 92 is fixedly connected to a support block 93, and the other end of the second spring 92 is fixedly connected to the support seat 10. By designing the second spring 92, the acting force of the second spring 92 can act on the support block 93. The support block 93 is slidably sleeved on the outside of the fixed rod 91. One end of the support block 93 is fixedly connected to a ball 94. The ball 94 is fixedly connected to the support seat 10. A clamping ball 95 is movably sleeved inside the other end of the support block 93. The clamping ball 95 is movably connected to the support seat 10. The clamping ball 95 is movably connected to the reflection sheet 2. A groove 96 is opened inside the reflection sheet 2. The clamping ball 95 is movably sleeved inside the groove 96. By designing the groove 96, the clamping ball 95 can roll inside the groove 96. By designing the support mechanism 9, the inside of the module can be supported.

[0036] The usage state of this embodiment is as follows: When in use, when it is necessary to combine the backlight module, first insert the connecting columns 6 into the backplane 3, the PCB substrate 4, the diffusion plate 5 and the reflection sheet 2 respectively. Then push the pull rod 85 inside the fixed seat 7. The pull rod 85 drives the magnetic attraction block 84 to move, so that the magnetic attraction block 84 is separated from the magnet 87. At this time, under the elastic action of the stretched first spring 83, a reaction force will be given to the magnetic attraction block 84. The magnetic attraction block 84 can drive the insertion block 86 to move horizontally, so that the insertion block 86 is inserted into the slot 88 of the connecting column 6. At this time, the connecting column 6 can be limited to realize the combined fixation of the backlight module, and the operation is convenient and fast.

[0037] When the support base 10 needs to be installed and used, before the reflector 2 is assembled, the support base 10 is directly inserted into the inside of the reflector 2. The reflector 2 will squeeze and push the clamping ball 95 to move. The clamping ball 95 will be squeezed and pushed to roll into the inside of the support base 10. The clamping ball 95 drives the support block 93 to move. The support block 93 squeezes the spring ball 94. At the same time, the support block 93 will slide along the fixed rod 91 and squeeze the second spring 92. When the support base 10 is completely inserted into the inside of the reflector 2, under the elastic action of the second spring 92, a reaction force will be given to the support block 93, and the clamping ball 95 can be pushed into the groove 96 inside the reflector 2. At this time, the support base 10 can be installed and fixed. The support base 10 is arranged between the PCB substrate 4 and the diffusion plate 5, which can play an internal support role and can achieve the purpose of improving the structural strength. Moreover, the support base 10 is convenient to install and use.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed 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) comprises a base layer (11), an enhancement layer (12), a reflective base layer (13), a regulating layer (14), and a protective layer (15); the base layer (11) is provided with an enhancement layer (12) on top, the enhancement layer (12) is provided with a reflective base layer (13) on top, the reflective base layer (13) is provided with a regulating layer (14) on top, and the regulating layer (15) is provided with a protective layer (15) on top of the regulating layer (14); the base layer (11) is made of an ultra-thin biaxially stretched PET film material, the enhancement layer (12) is made of a titanate coupling agent and nano-silicon dioxide composite coating material, the reflective base layer (13) is a nano-silver particle coating, the regulating layer (14) is made of a fluorine-containing acrylic resin material, and the protective layer (15) is made of a siloxane-modified polyurethane material.

2. A high brightness reflective sheet, characterized in that: The invention comprises the high brightness silver film according to claim 1, and further comprises a reflective sheet (2), wherein the reflective sheet (2) is arranged on the top of the silver film (1), and the reflective sheet (2) comprises a reinforcing layer (21), a reflective layer 1 (22), a reflective layer 2 (23), a reflective layer 3 (24), a buffer layer (25), and a supporting layer (26), wherein the reflective layer 1 (22) is arranged on the top of the reinforcing layer (21), the reflective layer 3 (24) is arranged on the top of the reflective layer 1 (22), and the reflective layer 3 (24) is arranged on the top of the reflective layer 3 (24). A buffer layer (25) is provided at the top of the buffer layer (25), a support layer (26) is provided on the top of the buffer layer (25), the reinforcement layer (21) is made of a graphene and copper nanowire composite material, the reflective layer 1 (22) is made of a vapor-deposited silver ion film material, the reflective layer 2 (23) is made of a TiO2 / Al2O3 alternating nanolayer material, the reflective layer 3 (24) is made of a white polyester coating material, the buffer layer (25) is made of a UV-cured acrylic resin material, and the support layer (26) is made of an ultra-flat PET film material.

3. A backlight module, characterized in that: The invention comprises the high-brightness reflector sheet as claimed in claim 2, and also comprises a back plate (3), the top of the back plate (3) contacts with a PCB substrate (4), the top of the PCB substrate (4) contacts with a reflector sheet (2), the top of the reflector sheet (2) contacts with a diffuser plate (5), the top of the diffuser plate (5) is fixedly connected with two symmetrically distributed fixing seats (7), the inner sliding sleeve of the back plate (3) is provided 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 diffuser plate (5), the inner sliding sleeve of the reflector sheet (2) is provided with a plurality of evenly distributed supporting seats (10), the supporting seats (10) are in contact with the diffuser 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).

4. The backlight module according to claim 3, characterized in that: The combined mechanism (8) comprises a slider (81), the interior of the fixed seat (7) is slidably sleeved with the slider (81), the outer side of the slider (81) is fixedly connected with a slider rod (82), the outer side of the slider rod (82) is provided with a first spring (83), the slider rod (82) is slidably connected to the fixed seat (7), the outer side of the slider rod (82) is fixedly connected with a magnetic block (84), the magnetic block (84) is slidably connected to the fixed seat (7), one end of the magnetic block (84) is fixedly connected with an insert block (86), the insert block (86) is slidably connected to the fixed seat (7), the insert block (86) is slidably connected to 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 to the fixed seat (7), and the interior of the fixed seat (7) is fixedly connected with a magnet (87).

5. The 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 fixing seat (7).

6. The backlight module according to claim 3, characterized in that: A slot (88) is provided inside the connecting column (6), and an insert block (86) is slidably connected inside the slot (88).

7. The backlight module according to claim 3, characterized in that: The support mechanism (9) comprises a fixed rod (91), the interior of the support 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), the outer side of the fixed rod (91) is slidably sleeved with a support block (93), one end of the support block (93) is fixedly connected with a spring ball (94), the spring ball (94) is fixedly connected to the support seat (10), the other end of the support block (93) is movably sleeved with a locking ball (95), the locking ball (95) is movably connected to the support seat (10), and the locking ball (95) is movably connected to the reflector (2).

8. The 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. The backlight module according to claim 3, characterized in that: A groove (96) is provided inside the reflective sheet (2), and a locking ball (95) is movably sleeved inside the groove (96).

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