CN107728251A - A kind of edge-type light guide plate, the preparation method of edge-type light guide plate and backlight module - Google Patents
A kind of edge-type light guide plate, the preparation method of edge-type light guide plate and backlight module Download PDFInfo
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- CN107728251A CN107728251A CN201711027653.9A CN201711027653A CN107728251A CN 107728251 A CN107728251 A CN 107728251A CN 201711027653 A CN201711027653 A CN 201711027653A CN 107728251 A CN107728251 A CN 107728251A
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- China
- Prior art keywords
- guide plate
- light guide
- edge
- type light
- exiting surface
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Classifications
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- 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
- G02B6/0035—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
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- 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
- G02B6/0035—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
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The embodiment of the invention discloses a kind of edge-type light guide plate, the preparation method of edge-type light guide plate and backlight module, wherein, the light guide plate includes planar lightguide；The planar lightguide has the exiting surface and reflecting surface being oppositely arranged, and the exiting surface concave-convex surface is set, and the exiting surface is provided with diffusion layer；The light guide plate is provided with reflecting surface, and reflector layer is provided with the reflecting surface.The embodiment of the present invention is surface-treated to the exiting surface of the edge-type light guide plate, make its exiting surface into concavo-convex setting, the diffusion layer of printing can play a part of diffusion sheet in the optics framework of traditional backlight module, reflective film hot pressing is fitted on the layer of site and forms reflector layer, so as to simplify the packaging technology of backlight module, save and prepare cost, avoid light guide plate from producing the phenomenon of bad order caused by friction with reflector plate and/or diffusion sheet.
Description
Technical field
The present embodiments relate to display technology field, more particularly to a kind of edge-type light guide plate, edge-type light guide plate
Preparation method and backlight module.
Background technology
At present, the display of in the market is divided into straight-down negative display and side entering type display, and side entering type display includes
Edge-type light guide plate, it is necessary to by being attached at light guide plate when the light of light source is transferred to display panel by the edge-type light guide plate
Exiting surface on blooming piece processing, and the cost of blooming piece is higher so that the preparation cost of light guide plate is high；Together
When produce friction because light guide plate is easy to reflector plate and diffusion sheet in the assembling process of light guide plate, cause the production of bad order
It is raw, rigid poor, the form out-of-flatness after assembling of reflector plate.Therefore, simplify the preparation technology of backlight module and package assembly shows
Obtain particularly important.
The content of the invention
The embodiment of the present invention provides a kind of edge-type light guide plate, the preparation method and backlight module of edge-type light guide plate, with
Realizing improves traditional backlight module preparation technology, reduces the purpose of production cost.
In a first aspect, the embodiments of the invention provide a kind of edge-type light guide plate, the light guide plate includes planar lightguide；
The planar lightguide has the exiting surface and reflecting surface being oppositely arranged, and the exiting surface concave-convex surface is set, and the light extraction
Face is provided with diffusion layer；The light guide plate is provided with reflecting surface, and reflector layer is provided with the reflecting surface.
Further, the exiting surface is concavo-convex raised including first, is provided with the recessed position of the exiting surface
Second is raised.
Further, it is provided with atomizing particle on the diffusion layer.
Further, multiple sites are provided with the reflecting surface, the dot density is from close to the one of the incidence surface
Hold to one end away from the incidence surface and gradually increase.
Further, the reflecting surface is provided with reflector layer in the site away from the side of the reflecting surface.
Further, the reflector layer is made of silver.
Second aspect, the embodiment of the present invention additionally provide a kind of preparation method of edge-type light guide plate, the preparation method bag
Include：
By the drying of the first raw material, melting, there is concavo-convex exiting surface and and light extraction by model reheating molded one
Face is oppositely arranged the planar lightguide of reflecting surface；
Exiting surface hot pressing or printing diffusion layer in the light guide plate；
In the reflecting surface hot pressing site layer of the light guide plate；
In the site layer reflector layer is molded away from the side of the reflecting surface.
The third aspect, the embodiment of the present invention additionally provide a kind of backlight module, and the backlight module includes first aspect institute
The edge-type light guide plate stated.
The embodiment of the present invention is surface-treated by edge-type light guide plate in exiting surface, makes its exiting surface into concavo-convex knot
Structure, and the atomization particle of the even light of recess setting in exiting surface, the diffusion layer of printing can play the light of traditional backlight module
The effect of diffusion sheet in framework is learned, site layer can make the light of reflecting surface carry out diffusing reflection, and be reflexed to exiting surface, will be anti-
Penetrate film hot-pressing to fit on the site layer and form reflector layer, i.e., the backlight mould for the light guide plate that the embodiment of the present invention is provided
Group can save reflector plate and diffusion sheet, so as to simplify the packaging technology of backlight module, save and prepare cost, avoid light guide plate
Producing friction with reflector plate and/or diffusion sheet causes the phenomenon of bad order.
Brief description of the drawings
Fig. 1 is the structural representation for the edge-type light guide plate that the embodiment of the present invention one provides；
Fig. 2 be II in the embodiment of the present invention one at enlarged diagram；
Fig. 3 is the preparation flow schematic diagram for the edge-type light guide plate that the embodiment of the present invention two provides.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that in order to just
Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
Embodiment one
A kind of light guide plate provided in an embodiment of the present invention, is applicable to the field of display preparation, and Fig. 1 is implemented for the present invention
The structural representation for the edge-type light guide plate that example one provides, referring to Fig. 1 and Fig. 2, the concrete structure of the light guide plate includes：Light guide plate
Including planar lightguide 10；Planar lightguide 10 has the exiting surface 13 and reflecting surface 14 being oppositely arranged, the exiting surface of light guide plate
13 concave-convex surfaces are set, and exiting surface 13 is provided with diffusion layer 12；Light guide plate is provided with reflecting surface 14, in the reflecting surface of light guide plate
14 are provided with reflector layer 16.Specifically, in the embodiment of the present invention, light guide plate can be by PMMA (Poly methyl
Methacrylate, polymethyl methacrylate) or MS (Methyl Methacrylate-styrene copolymer, first
Base acrylate-styrene copolymer) it is made；Wherein, the raw material of reflecting surface 14 can be PET (Polyethylene
Terephthalate, polyethylene terephthalate).
The planar lightguide 10 that the embodiment of the present invention is provided, there is the exiting surface 13 and reflecting surface 14 being oppositely arranged, lead
The concave-convex surface of exiting surface 13 of tabula rasa is set, and exiting surface 13 is provided with diffusion layer 12, includes atomizing particle on diffusion layer 12, its
Middle atomizing particle is located at the concavity opening position of exiting surface 13, the light being emitted from exiting surface 13 can be wherein spread in diffusion layer 12, i.e.,
Diffusion layer 12 can play a part of the diffusion sheet in the optics basic framework of traditional backlight module.Light guide plate is provided with reflecting surface
14, site is provided with reflecting surface 14 can prevent light from transmiting and going out from site, and reflector layer is provided with the reflecting surface 14 of light guide plate
16, the combination of reflecting surface and reflector layer 16 can play a part of the reflector plate in the optics basic structure of traditional backlight module, i.e.,
The backlight module of light guide plate provided in an embodiment of the present invention can save reflector plate and diffusion sheet, so as to simplify the group of backlight module
Dress technique, cost is saved, avoid reflector plate and/or diffusion sheet from producing friction and cause bad order.
Alternatively, the exiting surface is concavo-convex including the first projection 17, is provided with the recessed position of the exiting surface
Second projection 18.The size of wherein described first projection 17 is of different sizes with second projection 18, and/or described first convex
Rise 17 height it is different from the height of second projection 18.
Alternatively, it is provided with atomizing particle on diffusion layer 12.Wherein, atomizing particle is made of silicone resin material.
Alternatively, be provided with multiple sites 15 on reflecting surface 14, dot density from close to one end of incidence surface 11 to remote
One end of incidence surface 11 gradually increases.Herein, the density of site 15 refers to the area of site 15 and the area ratio of bottom surface.This hair
In bright embodiment, when suitable for backlight module, the light that the light source of backlight module is sent enters light guide plate from incidence surface 11
Light guide plate, because compared with the light away from the one end of incidence surface 11, light intensity gradually subtracts close to the light of the one end of incidence surface 11
Weak, so in order to ensure the uniformity of the overall light of light guide plate exiting surface 13, the density of site 15 is from close to the one of incidence surface 11
Hold to one end away from incidence surface 11 and gradually increase, so that the light in one end away from incidence surface 11 can obtain preferably overflowing instead
Penetrate.
Alternatively, reflecting surface 14 is provided with reflector layer 16 in site 15 away from the side of reflecting surface 14, and wherein reflector layer 16 can
To be made of silver.Reflecting surface 14, which is provided with reflector layer 16, can further improve the utilization rate of light.Led in this way, improving side entering type
The brightness of tabula rasa.Specifically, the reflector layer 16 can be to be pasted on reflecting surface 14 or plate the ag material located at reflecting surface 14,
Either mercury or other there is the material of reflecting effect, it is numerous to list herein.
Embodiment two
Fig. 3 is the preparation flow schematic diagram for the edge-type light guide plate that the embodiment of the present invention two provides.As shown in figure 3, this hair
The preparation method for the edge-type light guide plate that bright embodiment provides can include：
Step S110, by the drying of the first raw material, melting, there is concavo-convex exiting surface by model reheating molded one
And the planar lightguide of reflecting surface is oppositely arranged with exiting surface.
Specifically, the first raw material can be PMMA (Poly methyl Methacrylate, poly-methyl methacrylate
Ester) or MS (Methyl Methacrylate-styrene copolymer, copolymer of methyl methacrylatestyrene)
It is made.Wherein, the drying of the first raw material, melting are formed into colloidal liquid, hot-pressing technique shaping one is being utilized by model
The planar lightguide of reflecting surface 14 is oppositely arranged with concavo-convex exiting surface 13 and with exiting surface 13.
Step S120, the exiting surface hot pressing in the light guide plate or printing diffusion layer.
Specifically, the light guide plate exiting surface 13 by way of hot pressing or printing so that planar lightguide
Exiting surface 13 can form diffusion layer 12 with raised on cloth, include atomizing particle on the diffusion layer 12, and wherein atomizing particle can be with
It is made up of silicone resin material, the light being emitted from exiting surface 13 can be wherein spread in diffusion layer 12, be i.e. diffusion layer 12 can plays
The effect of diffusion sheet in the optics basic framework of traditional backlight module, the light being emitted from exiting surface 13 can be spread, so that from going out
The light that smooth surface 13 is emitted is softer uniformly.
Step S130, in the reflecting surface hot pressing site layer of the light guide plate.
Alternatively, in the hot pressing site layer of reflecting surface 14, the site layer can be diffusing reflection layer, and planar lightguide also has neighbour
The reflecting surface 14 and the incidence surface 11 of exiting surface 13 connect, the dot density of site layer from close to one end of incidence surface to away from entering light
The one end in face 11 gradually increases.
Step S140, it is molded reflector layer away from the side of the reflecting surface in the site layer.
In the present embodiment, the reflector layer 16 has higher reflectivity, can prevent light from transmiting and going out from diffusing reflection layer,
That is the presence of the reflector layer 16 can further strengthen light guide plate and go out albedo to light in bottom surface, so as to reduce luminous energy
Loss, improve the overall light efficiency of the backlight module using the light guide plate.Wherein described reflector layer 16 can be argent or mercury
Deng the metal material with reflex.
The planar lightguide 10 of manufacture of the embodiment of the present invention, there is the exiting surface 13 and reflecting surface 14 being oppositely arranged, it is guide-lighting
The concave-convex surface of exiting surface 13 of plate is set, and exiting surface 13 is provided with diffusion layer 12, includes atomizing particle on diffusion layer 12, wherein
Atomizing particle is located at the concavity opening position of exiting surface 13, and the light from exiting surface outgoing can be wherein spread in diffusion layer 12, that is, is spread
Layer 12 can play a part of the diffusion sheet in the optics basic framework of traditional backlight module.Light guide plate is provided with reflecting surface 14, instead
Penetrate on face 14 be provided with site can prevent light from site transmit and go out, be provided with reflector layer 16 in the reflecting surface 14 of light guide plate, instead
Reflector plate in the optics basic structure of traditional backlight module, i.e. this hair can be played a part of by penetrating the combination of face 14 and reflector layer 16
The backlight module that bright embodiment provides light guide plate can save reflector plate and diffusion sheet, so as to simplify the assembling work of backlight module
Skill, cost is saved, avoid reflector plate and/or diffusion sheet from producing friction and cause bad order and light efficiency to reduce.
On the basis of above-mentioned technical proposal, exiting surface 13 hot pressing or printing diffusion layer before, in addition to：In light guide plate
Exiting surface 13 carry out first time hot pressing and form the first projection 17；Second of hot pressing, which is carried out, in the exiting surface 13 of light guide plate forms the
Two projections 18, the first projection 17 and the height of the second projection 18, raised position stagger.Specifically, in the exiting surface of light guide plate
The first projection of graininess 17 is formed by first time hot pressing mode at 13 so that the projection of graininess first 17 and of exiting surface
Granular second raised 18 positions are staggered, such position or highly different projections, can strengthen light guide plate diffusion layer it is wear-resistant
Ability, so as to can guarantee that the uniformity of exiting surface luminous energy.
Further, include in the specific steps that reflector layer is molded away from the side of the reflecting surface of site layer：By
The drying of two raw material, melting, are being drawn into reflective film；Reflective film hot pressing is fitted on the layer of site and forms reflector layer
16.Wherein, the second raw material can be argent or mercury, or other have the material of reflecting effect.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of edge-type light guide plate, it is characterised in that the light guide plate includes planar lightguide；The planar lightguide has
The exiting surface and reflecting surface being oppositely arranged, the exiting surface concave-convex surface is set, and the exiting surface is provided with diffusion layer；It is described
Light guide plate is provided with reflecting surface, and reflector layer is provided with the reflecting surface.
2. edge-type light guide plate according to claim 1, it is characterised in that the exiting surface it is concavo-convex convex including first
Rise, it is raised that second is provided with the recessed position of the exiting surface.
3. edge-type light guide plate according to claim 1, it is characterised in that be provided with atomizing particle on the diffusion layer.
4. edge-type light guide plate according to claim 1, it is characterised in that multiple sites are provided with the reflecting surface,
The one end of the dot density from close to one end of the incidence surface to away from the incidence surface gradually increases.
5. edge-type light guide plate according to claim 4, it is characterised in that the reflecting surface is in the site away from described
The side of reflecting surface is provided with reflector layer.
6. edge-type light guide plate according to claim 5, it is characterised in that the reflector layer is made of silver.
7. a kind of preparation method of edge-type light guide plate, it is characterised in that the preparation method of the edge-type light guide plate includes：
By the drying of the first raw material, melting, by model reheating molded one have concavo-convex exiting surface and with exiting surface phase
Planar lightguide to setting reflecting surface；
Exiting surface hot pressing or printing diffusion layer in the light guide plate；
In the reflecting surface hot pressing site layer of the light guide plate；
In the site layer reflector layer is molded away from the side of the reflecting surface.
8. the preparation method of edge-type light guide plate according to claim 7, it is characterised in that the exiting surface in hot pressing or
Before printing diffusion layer, in addition to：
First time hot pressing, which is carried out, in the exiting surface of the light guide plate forms the first projection；
Second of hot pressing, which is carried out, in the exiting surface of the light guide plate forms the second projection；
Described first raised and second height of projection, raised position stagger.
9. the preparation method of edge-type light guide plate according to claim 7, it is characterised in that deviate from institute in the site layer
Stating the specific steps of the side shaping reflector layer of reflecting surface includes：
By the drying of the second raw material, melting, reflective film is redrawn into；
The reflective film hot pressing is fitted on the site layer and forms reflector layer.
10. a kind of backlight module, it is characterised in that the backlight module includes the side entering type described in claim any one of 1-6
Light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711027653.9A CN107728251A (en) | 2017-10-27 | 2017-10-27 | A kind of edge-type light guide plate, the preparation method of edge-type light guide plate and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711027653.9A CN107728251A (en) | 2017-10-27 | 2017-10-27 | A kind of edge-type light guide plate, the preparation method of edge-type light guide plate and backlight module |
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| Publication Number | Publication Date |
|---|---|
| CN107728251A true CN107728251A (en) | 2018-02-23 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711027653.9A Withdrawn CN107728251A (en) | 2017-10-27 | 2017-10-27 | A kind of edge-type light guide plate, the preparation method of edge-type light guide plate and backlight module |
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| CN (1) | CN107728251A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627908A (en) * | 2018-05-11 | 2018-10-09 | 厦门光莆电子股份有限公司 | Modular light conducting plate |
| CN109581575A (en) * | 2018-11-12 | 2019-04-05 | 安徽亦知企业管理有限公司 | A kind of light guide plate and preparation method thereof |
| CN109799567A (en) * | 2019-02-22 | 2019-05-24 | 浙江凯耀照明股份有限公司 | A kind of composite light guide plate and its assemble method for LED panel lamp |
| CN109839692A (en) * | 2019-01-28 | 2019-06-04 | 凤阳硅谷智能有限公司 | A kind of heat dissipation glass light guide plate and preparation method thereof |
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| CN105445844A (en) * | 2014-09-02 | 2016-03-30 | 深圳Tcl新技术有限公司 | Light guide plate, manufacturing method of same, and backlight module |
| CN205333905U (en) * | 2015-12-28 | 2016-06-22 | Tcl海外电子（惠州）有限公司 | Side income formula light guide plate, side income formula backlight unit and display |
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2017
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105445844A (en) * | 2014-09-02 | 2016-03-30 | 深圳Tcl新技术有限公司 | Light guide plate, manufacturing method of same, and backlight module |
| CN205333905U (en) * | 2015-12-28 | 2016-06-22 | Tcl海外电子（惠州）有限公司 | Side income formula light guide plate, side income formula backlight unit and display |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627908A (en) * | 2018-05-11 | 2018-10-09 | 厦门光莆电子股份有限公司 | Modular light conducting plate |
| CN109581575A (en) * | 2018-11-12 | 2019-04-05 | 安徽亦知企业管理有限公司 | A kind of light guide plate and preparation method thereof |
| CN111175882A (en) * | 2018-11-12 | 2020-05-19 | 安徽亦知企业管理有限公司 | Light guide plate |
| CN111208599A (en) * | 2018-11-12 | 2020-05-29 | 安徽亦知企业管理有限公司 | Light guide plate with V type groove |
| CN109581575B (en) * | 2018-11-12 | 2020-11-27 | 佛山市南海精置塑料有限公司 | Light guide plate |
| CN109839692A (en) * | 2019-01-28 | 2019-06-04 | 凤阳硅谷智能有限公司 | A kind of heat dissipation glass light guide plate and preparation method thereof |
| CN109799567A (en) * | 2019-02-22 | 2019-05-24 | 浙江凯耀照明股份有限公司 | A kind of composite light guide plate and its assemble method for LED panel lamp |
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Application publication date: 20180223 |