CN111239875A - Composite reflecting plate - Google Patents

Composite reflecting plate Download PDF

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Publication number
CN111239875A
CN111239875A CN201811438001.9A CN201811438001A CN111239875A CN 111239875 A CN111239875 A CN 111239875A CN 201811438001 A CN201811438001 A CN 201811438001A CN 111239875 A CN111239875 A CN 111239875A
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China
Prior art keywords
layer
reflecting
composite
particles
scratch
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Pending
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CN201811438001.9A
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Chinese (zh)
Inventor
金亚东
杨承翰
熊斐
朱正平
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Ningbo Solartron Technology Co Ltd
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Ningbo Solartron Technology Co Ltd
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Priority to CN201811438001.9A priority Critical patent/CN111239875A/en
Publication of CN111239875A publication Critical patent/CN111239875A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/0808—Mirrors having a single reflecting layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention provides a composite reflecting plate, which comprises a reflecting layer, an enhancement layer, a shading layer and an anti-scraping layer; the light shielding layer of the composite reflecting plate can be arranged between the reflecting layer and the enhancement layer and also can be arranged between the enhancement layer and the scratch-resistant layer; the reflecting layer is selected from one of polyester reflecting film, polypropylene reflecting film, polycarbonate reflecting film or silver-plated reflecting film; the scratch-resistant layer mainly comprises glue and coating particles; the reflective layer is preferably a polyester reflective film.

Description

Composite reflecting plate
Technical Field
The invention belongs to the technical field of photoelectricity, and relates to a composite reflecting plate.
Background
At present, the demands of customers in the fields of illumination and display are gradually becoming thinner and lighter, so that the lateral backlight module is widely used, wherein the development direction for various components is also focused on simplification, integration and light weight. In order to meet the market demand of the side-in type backlight module, I developed a composite reflection plate for integrating and replacing a reflection film and a back plate in the side-in type backlight module in the lighting and display equipment. However, in practical use, customers find that the composite reflection plate has a situation that the back surface is easy to be abraded due to reasons such as carrying and assembling, and obvious light leakage phenomenon can occur after abrasion, so that poor assembling can occur, and the yield is seriously influenced. The current product is
Disclosure of Invention
The invention provides a composite reflecting plate, aiming at solving the problem that the back surface of the composite reflecting plate is easy to scratch. The composite reflecting plate greatly improves the abrasion resistance of the back surface, and avoids the light leakage phenomenon caused by abrasion due to the fact that the back surface of the reflecting plate is in contact with rough articles to rub in the assembling and transporting processes.
In order to realize the purpose, the invention adopts the following technical scheme:
the invention provides a composite reflecting plate, which is characterized in that: the composite reflecting plate comprises a reflecting layer, an enhancement layer, a shading layer and an anti-scraping layer.
Further, the light shielding layer of the composite reflection plate can be between the reflection layer and the enhancement layer, and can also be between the enhancement layer and the scratch-resistant layer.
Further, the scratch resistant layer of the composite reflection plate is at the outermost part where it is in contact with other substances.
Further, the reflective layer is selected from one of a polyester reflective film, a polypropylene reflective film, a polycarbonate reflective film or a silver-plated reflective film.
Furthermore, the scratch-resistant layer mainly comprises glue and coating particles.
Further, the reflective layer is preferably a polyester reflective film.
Further, the material of the reinforcing layer is selected from one of glass, plastic film or plastic sheet.
Further, the plastic film or the plastic sheet is made of one or a combination of at least two selected from polyethylene terephthalate (PET), polypropylene terephthalate (PPT), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polyvinyl chloride (PVC), Polycarbonate (PC), Polyethylene (PE), polypropylene (PP), Polystyrene (PS), and Polyamide (PA).
Further, the reinforced layer is preferably a plastic film, and the material of the plastic film is selected from polyethylene terephthalate (PET).
Furthermore, the material of the shading layer is selected from metal, nonmetal or alloy of metal and nonmetal.
Further, the shading layer is selected from one or a combination of at least two of a metal foil, a metal-plated film, a laser film and a bronzing paper.
Further, the material of the metal foil is selected from one or a combination of at least two of aluminum, copper, iron, silver and gold.
Further, the metal-plated film is selected from one of an aluminum-plated film, a copper-plated film, a zinc-plated film, a silver-plated film or a gold-plated film.
Further, the light-shielding layer is preferably an aluminum-plated film.
Further, the scratch-resistant layer is formed by coating glue which is mixed particles.
Further, the glue is composed of one or more of Polyurethane (PU) glue, polyethylene terephthalate (PET) glue and polymethyl methacrylate (PMMA) glue.
Further, the glue is preferably polymethyl methacrylate (PMMA) glue.
Further, the coating particle material is composed of one or more of polymethyl methacrylate (PMMA), poly n-butyl methacrylate (PBMA), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polypropylene (PP), Polyethylene (PE) or Polyamide (PA).
Furthermore, the material of the coating particles is preferably one or more of polymethyl methacrylate (PMMA), poly n-butyl methacrylate (PBMA), polyethylene terephthalate (PET) and Polyamide (PA).
Further, the particles are spherical or irregular in shape.
Further, the average particle diameter of the particles is 1 to 100 μm.
Further, the average particle diameter of the particles is preferably 10 to 60 μm.
Furthermore, the mass percentage of the particles in the scratch-resistant layer is 5-70%.
Further, the mass proportion of the particles in the scratch-resistant layer is preferably 10-60%.
Compared with the prior art, the composite reflecting plate provided by the invention comprises a reflecting layer, a reinforcing layer, a shading layer and an anti-scraping layer. The anti-scraping layer is formed by coating glue of mixed particles, so that the situation of back abrasion and light leakage caused by contact friction with rough objects in the use process of the composite reflecting plate product is effectively avoided, and the assembly yield of a backlight assembly factory is greatly improved.
Drawings
FIG. 1 is a schematic view of the present patent
FIG. 2 is another schematic diagram of the present patent
Wherein A is a reflection layer, B is a shading layer, C is an enhancement layer, D is anti-scratch layer glue, and E is anti-scratch layer particles.
Detailed Description
The composite reflecting plate provided by the invention is mainly used for testing and evaluating the following performances:
and (3) wear resistance test: according to the method described in HG/T4303-2012 standard, the abrasion resistance test is carried out on the surface of the scratch-resistant layer of the sample, the composite reflecting plate which is tested on the abrasion resistance is cut into corresponding size and shape, the reflecting plate in the panel lamp with the size of 600mm multiplied by 600mm is replaced, the panel lamp is lightened, and the condition that the light is obviously transmitted is poor when the test area is observed; the material is good when the surface of the material is obviously damaged without light transmission; the material is free from light transmission, and the surface of the material is free from damage.
Example 1
And preparing the composite reflecting plate, wherein all the layers are mutually adhered through an adhesive, and the light shielding layer is arranged between the reflecting layer and the reinforcing layer.
The scratch-resistant layer is formed by mixing hot-cured polymethyl methacrylate glue with polymethyl methacrylate spherical particles with the average particle size of 10 mu m, and coating the mixture on the reverse side of the bonding of the enhancement layer and the shading layer through a reticulate pattern roller, wherein the mass ratio of the particles in the finished scratch-resistant layer is 10%.
Example 2
The same procedure as in example 1 was repeated, except that the average particle size of the particles was 60 μm.
Example 3
The preparation method is the same as that of the example 1, wherein the mass ratio of the particles in the finished scratch-resistant layer is 60 percent.
Example 4
The preparation process is the same as that of example 1, wherein the average particle size of the particles is 30 μm, and the mass ratio of the particles in the scratch-resistant layer is 25%.
Example 5
And preparing the composite reflecting plate, wherein each layer is adhered to each other through an adhesive, and the shading layer is arranged between the enhancement layer and the scratch-resistant layer.
The scratch-resistant layer is formed by mixing thermosetting polymethyl methacrylate glue with polyethylene glycol terephthalate irregular particles with the average particle size of 20 mu m, and coating the mixture on the reverse side of the joint of the light shielding layer and the enhancement layer through a reticulate pattern roller, wherein the mass ratio of the particles in the finished scratch-resistant layer is 15%.
Example 6
The same procedure as in example 5 was repeated, except that the average particle size was 60 μm and the ratio of the particles in the scratch-resistant layer was 10%.
Example 7
The same procedure as in example 5 was repeated, except that the final scratch-resistant layer contained 60% by mass of particles.
Example 8
The same procedure as in example 5 was repeated, except that the average particle size was 25 μm, and the ratio of the particles in the scratch-resistant layer was 35%.
Example 9
And preparing the composite reflecting plate, wherein all the layers are mutually adhered through an adhesive, and the light shielding layer is arranged between the reflecting layer and the reinforcing layer.
The scratch-resistant layer is formed by mixing thermosetting polymethyl methacrylate glue with polyamide spherical particles with the average particle size of 10 mu m, and coating the mixture on the reverse side of the bonding of the enhancement layer and the shading layer through a reticulate pattern roller, wherein the mass ratio of the particles in the finished scratch-resistant layer is 60%.
Example 10
The same procedure as in example 9 was repeated, except that the final scratch-resistant layer contained 50% by mass of particles.
Example 11
The same procedure as in example 9 was conducted, except that the average particle size was 25 μm, the ratio of the particles in the scratch-resistant layer was 30%.
Example 12
The same procedure used in EXAMPLE 9, wherein the average particle size was 30 μm and the ratio of the particles in the scratch-resistant layer was 10%.
Example 13
And preparing the composite reflecting plate, wherein each layer is adhered to each other through an adhesive, and the shading layer is arranged between the enhancement layer and the scratch-resistant layer.
The scratch-resistant layer is formed by mixing thermosetting polymethyl methacrylate glue with poly n-butyl methacrylate spherical particles with the average particle size of 10 mu m, and coating the mixture on the reverse side of the joint of the light shielding layer and the enhancement layer through a reticulate pattern roller, wherein the mass ratio of the particles in the finished scratch-resistant layer is 10%.
Example 14
The same procedure used in example 13 was repeated except that the average particle size of the particles was changed to 60 μm.
Example 15
The same procedure as in example 13 was conducted, except that the amount of the particles in the scratch-resistant layer was 60%.
Example 16
The preparation process was carried out in the same manner as in example 13, wherein the average particle size of the particles was 30 μm and the ratio of the mass of the particles in the scratch-resistant layer was 25%.
Comparative example 1
And preparing a composite reflecting plate, wherein the composite reflecting plate sequentially comprises a reflecting layer, an enhancement layer and a light shielding layer. The layers are adhered to each other through an adhesive, and the light shielding layer is arranged on the reverse side of the reinforcing layer, which is attached to the reflecting layer.
Comparative example 2
And preparing a composite reflecting plate, wherein the composite reflecting plate sequentially comprises a reflecting layer, an enhancement layer and a light shielding layer. The layers are adhered to each other through an adhesive, wherein the light shielding layer is arranged between the reflecting layer and the reinforcing layer.
Examples light leakage test data are given in the following table
Figure BDA0001882506340000031
Figure BDA0001882506340000041
From the data analysis in the above table, comparative examples 1-2 show severe light leakage after abrasion resistance test without preparing a scratch resistant layer of the coated particles; examples 3, 6 and 15 are excellent in scratch resistance, do not cause light leakage, and do not cause poor appearance due to damage of surface material, and thus it is seen that particles of polymethyl methacrylate and n-butyl methacrylate material need to be coated with a coating layer having a small particle size and high density, and provide good scratch resistance, while particles of polyethylene terephthalate material have excellent scratch resistance when filled with a large particle size and low density.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A composite reflective sheet, characterized by: the composite reflecting plate comprises a reflecting layer, an enhancement layer, a shading layer and an anti-scraping layer.
2. The composite reflection plate according to claim 1, wherein: the light shielding layer of the composite reflecting plate can be arranged between the reflecting layer and the enhancement layer and also can be arranged between the enhancement layer and the scratch-resistant layer.
3. The composite reflection plate according to claim 1, wherein: the reflecting layer is selected from one of polyester reflecting film, polypropylene reflecting film, polycarbonate reflecting film or silver-plated reflecting film.
4. The composite reflection plate as claimed in claim 1, wherein the light-shielding layer is selected from one or a combination of at least two of a metal foil, a metallized film, a laser film and a bronzing paper.
5. The composite reflection plate as described in claim 1, wherein said scratch resistant layer is formed by coating a glue which is a mixture of particles.
6. The composite reflection plate as claimed in claim 5, wherein the glue is one or more of Polyurethane Urethane (PU) glue, polyethylene terephthalate (PET) glue, and polymethyl methacrylate (PMMA) glue.
7. A composite reflection plate according to claim 5, wherein said coating particles are made of one or more materials selected from the group consisting of polymethyl methacrylate (PMMA), poly-n-butyl methacrylate (PBMA), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polypropylene (PP), Polyethylene (PE), and Polyamide (PA).
8. The composite reflection plate according to claim 7, wherein the particles have a spherical or irregular shape.
9. The composite reflection plate according to claim 7, wherein the particles have an average particle diameter of 1 to 100. mu.m.
10. The composite reflection plate according to claim 7, wherein the particles are present in the scratch-resistant layer in an amount of 5 to 70% by mass.
CN201811438001.9A 2018-11-29 2018-11-29 Composite reflecting plate Pending CN111239875A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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CN111239875A true CN111239875A (en) 2020-06-05

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070053085A1 (en) * 2005-09-06 2007-03-08 Mobiletron Electronics Co., Ltd. Lens for rearview mirror
FR2944359A1 (en) * 2009-04-10 2010-10-15 Jean Daniel Gary Plasticien Ve Mirror manufacturing method, involves forming variable reflection area having light intensity in face of mirror reflecting light, and scraping paint protection layer covering reflective layer i.e. silver layer
CN104614792A (en) * 2015-01-26 2015-05-13 宁波长阳科技有限公司 Anti-scraping reflector plate and preparation method thereof
CN106908885A (en) * 2017-03-20 2017-06-30 宁波长阳科技股份有限公司 A kind of anti-absorption coating reflectance coating
CN106908881A (en) * 2016-04-27 2017-06-30 宁波长阳科技股份有限公司 A kind of anti-scratch coating reflector plate and preparation method thereof
CN108724880A (en) * 2017-12-27 2018-11-02 宁波长阳科技股份有限公司 Catoptric arrangement and its application

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070053085A1 (en) * 2005-09-06 2007-03-08 Mobiletron Electronics Co., Ltd. Lens for rearview mirror
FR2944359A1 (en) * 2009-04-10 2010-10-15 Jean Daniel Gary Plasticien Ve Mirror manufacturing method, involves forming variable reflection area having light intensity in face of mirror reflecting light, and scraping paint protection layer covering reflective layer i.e. silver layer
CN104614792A (en) * 2015-01-26 2015-05-13 宁波长阳科技有限公司 Anti-scraping reflector plate and preparation method thereof
CN106908881A (en) * 2016-04-27 2017-06-30 宁波长阳科技股份有限公司 A kind of anti-scratch coating reflector plate and preparation method thereof
CN106908885A (en) * 2017-03-20 2017-06-30 宁波长阳科技股份有限公司 A kind of anti-absorption coating reflectance coating
CN108724880A (en) * 2017-12-27 2018-11-02 宁波长阳科技股份有限公司 Catoptric arrangement and its application

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Application publication date: 20200605