CN111999792A - Light guide plate, front light guide structure and sunlight screen - Google Patents

Light guide plate, front light guide structure and sunlight screen Download PDF

Info

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
Application number
CN202010819716.XA
Other languages
Chinese (zh)
Inventor
龙定华
张海辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xinhuikai Technology Shenzhen Co ltd
Original Assignee
Xinhuikai Technology Shenzhen Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xinhuikai Technology Shenzhen Co ltd filed Critical Xinhuikai Technology Shenzhen Co ltd
Priority to CN202010819716.XA priority Critical patent/CN111999792A/en
Priority to PCT/CN2020/130146 priority patent/WO2022032915A1/en
Publication of CN111999792A publication Critical patent/CN111999792A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides
    • G02B6/0001Light guides specially adapted for lighting devices or systems
    • G02B6/0011Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/0035Means 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
    • G02B6/004Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides
    • G02B6/0001Light guides specially adapted for lighting devices or systems
    • G02B6/0011Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/005Means 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating 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

Light guide plate, front light guide structure and sunlight screen
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).
CN202010819716.XA 2020-08-14 2020-08-14 Light guide plate, front light guide structure and sunlight screen Pending CN111999792A (en)

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)

Similar Documents

Publication Publication Date Title
CN206848653U (en) A kind of backlight module and display device
CN106950641A (en) A kind of light guide plate, optics module and the display device that is all-trans
CN106990602A (en) A kind of display panel and display device
CN101158781A (en) Double face LCD
US7553061B2 (en) Side type backlight module
CN202870328U (en) Color filter and color display device
CN101169540A (en) Half-penetration half-reflection liquid crystal display panel and its liquid crystal display device
CN103399456B (en) building glass curtain wall projection imaging film
CN208752353U (en) Prevent the backlight module in corner and edge light leakage
CN208044261U (en) Backlight module and display equipment
CN207516697U (en) A kind of liquid crystal display device
CN212515122U (en) Light guide plate, front light guide structure and sunlight screen
CN107290899A (en) Side entrance back module and liquid crystal display
CN207502871U (en) A kind of novel liquid crystal display device
CN111999792A (en) Light guide plate, front light guide structure and sunlight screen
CN201788342U (en) Electrochromic reflector
CN109031771A (en) Liquid crystal display die set, liquid crystal display and display equipment
CN205880445U (en) Back light module and liquid crystal display device
CN105334554A (en) One-way light transmitting film, light collector and backlight source module
CN2914134Y (en) Micro-reflecting liquid crystal display
CN211123551U (en) Novel efficient peep-proof display module
CN208335625U (en) A kind of cover board, touch screen and the display module of car-mounted display product
CN110045454A (en) Unidirectionally go out light guide tabula rasa and preparation method thereof
CN206523723U (en) The display of built-in light source
CN205942203U (en) Backlight module and display device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination