CN111999792A - Light guide plate, front light guide structure and sunlight screen - Google Patents
Light guide plate, front light guide structure and sunlight screen Download PDFInfo
- Publication number
- CN111999792A CN111999792A CN202010819716.XA CN202010819716A CN111999792A CN 111999792 A CN111999792 A CN 111999792A CN 202010819716 A CN202010819716 A CN 202010819716A CN 111999792 A CN111999792 A CN 111999792A
- Authority
- CN
- China
- Prior art keywords
- light guide
- guide plate
- substrate
- layer
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000758 substrate Substances 0.000 claims abstract description 40
- 239000011521 glass Substances 0.000 claims description 48
- 230000003287 optical Effects 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 12
- 239000004568 cement Substances 0.000 claims description 6
- 238000007738 vacuum evaporation Methods 0.000 claims description 6
- 235000008469 Oxalis tuberosa Nutrition 0.000 claims description 5
- 240000000645 Oxalis tuberosa Species 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive Effects 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000004049 embossing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000002310 reflectometry Methods 0.000 abstract description 6
- 230000000475 sunscreen Effects 0.000 abstract description 2
- 239000000516 sunscreening agent Substances 0.000 abstract description 2
- 241000681094 Zingel asper Species 0.000 description 8
- 239000003292 glue Substances 0.000 description 3
- 230000037250 Clearance Effects 0.000 description 2
- 230000035512 clearance Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides
- G02B6/0001—Light guides specially adapted for lighting devices or systems
- G02B6/0011—Light guides 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
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides
- G02B6/0001—Light guides specially adapted for lighting devices or systems
- G02B6/0011—Light guides 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
Abstract
The invention relates to a light guide plate, a front light guide structure and a sun screen, and relates to the technical field of display. This application is provided with one side of site through leading the light substrate and plates and establish the first AR layer of one deck to can effectual reduction leaded light base plate's reflectivity, make this application can obtain better display effect.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a light guide plate, a front light guide structure and a solar screen.
Background
The solar screen is a screen which displays through a reflection light source, and the display screen does not emit light and is opaque in order to achieve the purposes of low power consumption, simulation of natural light reflection display and the like.
However, such a display screen can only be used in the daytime or in the case of an additional illumination light source, and if the weather is bad or the sunlight screen is dark, the display screen will be too dim to see clearly.
Disclosure of Invention
In order to solve the technical problems, the invention provides a light guide plate, a front light guide structure and a solar screen.
The technical scheme for solving the technical problems is as follows: the utility model provides a light guide plate, includes light guide plate base plate and first AR layer, one side of light guide plate base plate is fixed with the site, first AR layer adheres to be provided with on the light guide plate base plate one side of site is attached in simultaneously in the site surface.
This application is provided with one side of site through leading the light substrate and plates and establish the first AR layer of one deck to can effectual reduction leaded light base plate's reflectivity, make this application can obtain better display effect.
Further, the mesh points are arranged on the light guide plate substrate through UV imprinting.
The UV embossing technology is used for preparing the mesh points, so that burrs at the edges of the mesh points can be effectively eliminated, and the haze of the light guide plate is controlled.
Further, the first AR layer is plated on the surface of the light guide plate substrate through vacuum evaporation.
Further, the light guide plate substrate is made of ultra-white glass.
This application adopts super white glass as light guide plate base plate, and super white glass does not receive adverse conditions influence such as high temperature, high humidity or sunshine insolate, consequently uses super white glass as the reliability that light guide plate can increase the light guide plate as the light guide plate base plate.
The present application also provides a front light guide structure for a TFT solar panel, comprising: the light guide plate; and
the glass cover plate comprises a glass substrate and second AR layers respectively attached to two sides of the glass substrate, and the glass cover plate is arranged on one side, close to the mesh points, of the light guide plate and has a gap with the light guide plate; and
and the optical attaching layer is attached to one side of the light guide plate, which is far away from the glass cover plate.
This application can improve the intensity of this application through setting up the glass apron, and then can holistic improvement sunshine screen's intensity, through set up the AR layer in glass apron both sides, can make the transmissivity of glass apron > 98%, reflectivity < 1%, from not influencing the clarity and the color that show the content.
Further, the light guide plate sealing device further comprises a sealing member which is arranged at the edge of the gap between the glass cover plate and the light guide plate in a sealing mode along the circumferential direction.
This application can effectually prevent through the sealing member that water and dust from entering into between glass apron and the light guide plate.
Further, the sealing element is double-faced foam cotton rubber.
Further, the optical laminating layer is OCA optical cement or OCR optical cement.
Further, the second AR layer is plated on the surface of the glass substrate through vacuum evaporation.
The application further provides a sunshine screen, including above-mentioned preceding light guide optical structure to and reflection type TFT base plate, reflection type TFT base plate attached in optical laminating layer is kept away from one side of light guide plate.
The sunlight screen provided by the application can have better display effect and definition under the condition that light is weaker.
Drawings
FIG. 1 is a schematic view of a layered structure of a light guide plate according to an embodiment;
FIG. 2 is a schematic view showing a layered structure of a glass cover plate in the example;
FIG. 3 is a schematic view of a layered structure of a solar panel in an embodiment;
FIG. 4 is a top view of the light guide plate in the embodiment;
FIG. 5 is a top view of a light guide plate according to the prior art;
the reference numbers are as follows: the light guide plate comprises a light guide plate 1, a light guide substrate 11, a dot 111, a first AR layer 12, a glass cover plate 2, a glass substrate 21, a second AR layer 22, an optical bonding layer 3, a sealing member 4, a reflective TFT substrate 5 and burrs 6.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
The following discloses many different embodiments or examples for implementing the subject technology described. While specific examples of one or more arrangements of features are described below to simplify the disclosure, the examples should not be construed as limiting the invention, and the first feature described later in the specification in conjunction with the second feature may include embodiments that are directly related, may also include embodiments that form additional features, and further may include embodiments in which one or more additional intervening features are used to indirectly connect or combine the first and second features to each other, so that the first and second features may not be directly related.
It should be understood that the following terms appearing in the present application are technical terms known in the art, and the meanings of the following terms can be ascertained by those skilled in the art without objection.
An AR layer: coating an antireflection surface;
a TFT: thin Film Transistor, an abbreviation of Thin Film Transistor;
UV: ultraviolet Rays, an abbreviation for Ultraviolet light;
OCA: optical Clear Adhesive, substrate-less double sided tape with an Optically Clear layer;
OCR: optical Clear resin;
the application discloses embodiment of light guide plate 1, including light guide plate 11 and first AR layer 12, wherein, one side of light guide plate 11 is fixed with site 111, first AR layer 12 is attached and is provided with the one side of site 111 on light guide plate 11, this first AR layer 12 can be plated on the substrate surface through vacuum evaporation's mode, because site 111 sets up on the base plate, consequently first AR layer 12 also covers on site 11 surface simultaneously, above-mentioned light guide plate 11 preferably adopts super white glass, super white glass does not receive high temperature, high humidity or bad condition influence such as sunshine insolate, consequently, use super white glass as light guide plate 11 can increase light guide plate 1's reliability. It is to be understood that PC, PMMA, or the like may also be used for the light guide substrate 11.
This application is provided with one side of site 111 through leading light substrate 11 and plates and establish the first AR layer 12 of one deck to can effectual reduction leading light substrate 11's reflectivity, make this application can obtain better definition.
This is because, in the prior art, the reflectance of the dot 111 surface of the light guide plate 1 is high, and generally, the reflectance can be as high as about 4%, which results in high reflectance of the entire light guide plate 1, and on the one hand, the ratio of light entering the reflective TFT substrate 5 is reduced, and on the other hand, the reflectance of the light guide plate 1 is high, and further increases as the color of the display screen becomes darker, for example, the refractive index of the reflective TFT substrate 5 is usually about 12 to 16%, the reflectance of the surface of the general light guide plate 1 is about 25-35%, and, therefore, when in operation, the white light reflected by the surface of the mesh 111 of the common light guide plate 1 and the content light reflected by the reflective TFT substrate 5 are mixed together, further, the reflected content light is diluted, so that the display viewed by the viewer is slightly dim and low in chromaticity, and further, the color is not bright enough.
In the embodiment disclosed in the application, because one side that is provided with site 111 at light guide plate 1 has plated and has established one deck AR layer, can reduce the reflectivity of 1 site 111 face of light guide plate to below 0.5%, the problem that the colour mixture that has significantly reduced dilutes to make the sun screen show more clearly, the color is more bright-colored, can still have good display effect earlier in the condition that light is not enough.
In addition, in the prior art, the dots 111 on the light guide plate 1 are usually manufactured by injection molding, silk-screen printing or hot stamping, and these techniques have high control difficulty and high manufacturing conditions, which causes the edges of the dots 111 to easily have burrs 6 as shown in fig. 5, resulting in a very high haze of the light guide plate 1, so that the light guide plate 1 is entirely white when the light is good or not bright. And open the lamp strip of light guide plate 1 when light is not good dark on the one side, light can assemble 6 pointed ends of burr and form little bright spot because burr 6 is equivalent to a conical surface body light when 1 leaded light of light guide plate, and then influences display effect.
In the embodiment disclosed in the present application, the dot 111 is disposed on the light guide substrate 11 by UV imprinting, the above problem can be solved by making the dot 111 by UV imprinting, and a better display effect can be obtained, the principle is that, due to the leveling property of the UV glue, the UV glue has a little leveling time before curing, so that the dot 111 with a smooth edge is formed after curing, and just because of the leveling property of the UV glue, the leveling time can be controlled by controlling the intensity of ultraviolet light, so that the haze of the light guide plate 1 can be well controlled, and further the haze can be controlled within the range of 3% -5%, and the display content can be clearly displayed while the light guide efficiency of the light guide plate 1 is not affected.
On the basis, the embodiment disclosed in the present application further provides a front light guide structure for a TFT solar panel, which includes the light guide plate 1, the glass cover plate 2 and the optical bonding layer 3 sequentially arranged according to a layered structure.
The glass cover plate 2 includes a glass substrate 21 and second AR layers 22 disposed on two sides of the glass substrate 21, and the second AR layers 22 may also be disposed on two side surfaces of the glass substrate 21 by vacuum evaporation plating. Glass apron 2 is located one side that light guide plate 1 is close to the site and has the clearance with light guide plate 1, sets up second AR layer 22 through the both sides at glass substrate 21 to reduce glass substrate 21's reflectivity, make glass substrate 21 can not influence the content and show, flow out certain clearance between glass apron 2 and the light guide plate 1 in addition, also can avoid producing similar specular reflection's effect with light guide plate 1 after laminating with glass substrate 21.
In the embodiment disclosed in the application, protect light guide plate 1 through glass apron 2, can improve the intensity of this application through glass apron 2, reduce light guide plate 1 and reflective TFT base plate 5's damage, and then can holistic improvement sunshine screen's intensity.
The optical bonding layer 3 is attached to one side of the light guide plate 1, which is far away from the glass cover plate 2, one side of the optical bonding layer 3, which is far away from the glass cover plate 2, is used for attaching the reflective TFT substrate 5, in a specific embodiment, the optical bonding layer 3 is OCA optical cement or OCR optical cement, both OCA and OCR have high light conductivity, and the penetration of light rays cannot be influenced.
In addition, in order to prevent water and dust from entering between the light guide plate 1 and the glass cover plate 2, in the embodiment disclosed in the present application, a sealing member 4 is further provided, and the sealing member 4 is circumferentially and hermetically disposed at the edge of the gap between the glass cover plate 2 and the light guide plate 1, specifically, the sealing member 4 is double-faced foam cotton. One side of the double-sided foam adhesive is attached to the edge of the light guide plate 1 along the circumferential direction, and the other side of the double-sided foam adhesive is attached to the edge of the glass cover plate 2.
The application also provides a sunlight screen, and the sunlight screen comprises the front light guide structure and a reflective TFT substrate 5, wherein the reflective TFT substrate 5 is attached to one side of the optical laminating layer 3, which is far away from the light guide plate 1.
This application can satisfy outdoor suitable demand, can be extensive be applied to electron bus stop board, outdoor electron newspaper board, outdoor scenic spot guide tablet, outdoor lamp pole display screen etc. this application is in light weak place or show dark color picture and be wantonly to have better definition, compare in prior art, and the embodiment that this application is disclosed has the display effect better.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The light guide plate is characterized by comprising a light guide substrate (11) and a first AR layer (12), wherein a mesh point (111) is fixed on one side of the light guide substrate (11), and the first AR layer (12) is attached to one side, provided with the mesh point (111), of the light guide substrate (11) and attached to the surface of the mesh point (111) at the same time.
2. The light guide plate of claim 1, wherein the dots (111) are disposed on the light guide substrate (11) by UV embossing.
3. The light guide plate according to claim 1, wherein the first AR layer (12) is plated on the surface of the light guide substrate (11) by vacuum evaporation.
4. The light guide plate according to claim 1, wherein the light guide substrate (11) is ultra-white glass.
5. A front light guide structure for a TFT solar panel, comprising: the light guide plate according to any one of claims 1 to 4; and
the glass cover plate (2) comprises a glass substrate (21) and second AR layers (22) attached to two sides of the glass substrate (21) respectively, the glass cover plate (2) is arranged on one side, close to the mesh points (111), of the light guide plate (1), and a gap is formed between the glass cover plate and the light guide plate (1); and
and the optical attaching layer (3) is attached to one side, far away from the glass cover plate (2), of the light guide plate (1).
6. The front light guide structure for a TFT solar panel according to claim 5, further comprising a sealing member (4), wherein the sealing member (4) is circumferentially and sealingly disposed at a gap edge of the glass cover plate (2) and the light guide plate (1).
7. The front light guiding structure for a TFT solar screen according to claim 6, wherein the sealing member (4) is double-sided foam cotton.
8. The front light guide structure for a TFT solar screen as claimed in claim 5, wherein the optical laminating layer (3) is OCA optical cement or OCR optical cement.
9. The front light guide structure for a TFT solar panel according to claim 5, wherein the second AR layer (22) is plated on the glass substrate (21) surface by vacuum evaporation.
10. A solar screen, comprising a front light guide structure according to any one of claims 5 to 9, and a reflective TFT substrate (5), wherein the reflective TFT substrate (5) is attached to a side of the optical adhesive layer (3) away from the light guide plate (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010819716.XA CN111999792A (en) | 2020-08-14 | 2020-08-14 | Light guide plate, front light guide structure and sunlight screen |
| PCT/CN2020/130146 WO2022032915A1 (en) | 2020-08-14 | 2020-11-19 | Light guide plate, front light guide structure for reflective tft screen, and sunlight screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010819716.XA CN111999792A (en) | 2020-08-14 | 2020-08-14 | Light guide plate, front light guide structure and sunlight screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111999792A true CN111999792A (en) | 2020-11-27 |
Family
ID=73473247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010819716.XA Pending CN111999792A (en) | 2020-08-14 | 2020-08-14 | Light guide plate, front light guide structure and sunlight screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111999792A (en) |
-
2020
- 2020-08-14 CN CN202010819716.XA patent/CN111999792A/en active Pending
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