CN106019457A - Light guide plate optical microstructure and processing method thereof - Google Patents

Light guide plate optical microstructure and processing method thereof Download PDF

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Publication number
CN106019457A
CN106019457A CN201610485932.9A CN201610485932A CN106019457A CN 106019457 A CN106019457 A CN 106019457A CN 201610485932 A CN201610485932 A CN 201610485932A CN 106019457 A CN106019457 A CN 106019457A
Authority
CN
China
Prior art keywords
layer
light
site
incidence
guide plate
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
CN201610485932.9A
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Chinese (zh)
Inventor
李大伟
邱振文
赵勇
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.)
SHENZHEN HUICHEN ELECTRONICS CO Ltd
Original Assignee
SHENZHEN HUICHEN ELECTRONICS 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 SHENZHEN HUICHEN ELECTRONICS CO Ltd filed Critical SHENZHEN HUICHEN ELECTRONICS CO Ltd
Priority to CN201610485932.9A priority Critical patent/CN106019457A/en
Publication of CN106019457A publication Critical patent/CN106019457A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0033Means 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
    • G02B6/0051Diffusing sheet or layer
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0033Means 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
    • G02B6/0055Reflecting element, sheet or layer
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0065Manufacturing aspects; Material aspects

Abstract

The invention discloses a light guide plate, which is characterized in that the light guide plate has V-shaped groove microstructures, and comprises a reflecting surface for reflecting light rays, a light guiding medium layer, an incident surface for receiving the light rays, a light condensing layer and an entrance surface. The entrance surface is integrated with the light guiding medium layer, and the reflecting surface is integrated with the light guiding medium layer.

Description

A kind of light guide plate optical microstructures and processing method thereof
Technical field
The invention belongs to the technical field of light guide plate optical microstructures processing, particularly relate to one and lead Tabula rasa optical microstructures and processing method thereof.
Background technology
Apply from small size mobile phone screen to large scale TV screen, membrane transistor liquid crystal display (TFT-LCD) technology is the most ripe.The backlight module of LCD by light source, reflecting plate, lead The element such as tabula rasa, diffuser plate, prism diaphragm and blooming piece composition, the major technique of its product it One is light guide plate optical design, Mould design and manufacturing, accurate injection molding technology.Its requirement Emphasis brightness value lifting be evenly distributed, therefore the performance of light guide plate is directly connected to the whole back of the body The success or failure of light module.
Mobile phone development tends to thinning, screen request high brightness, high colour gamut and high-permeability, but mesh The processing technology of front light guide plate is difficult to meet the demand of client.At present, producer typically uses and carries The brightness in high lamp source and use the brightening piece of high cost instead to improve brightness, but this kind of scheme is difficult to improve The permeability of product, the also difficult gamut problem improving screen, and can be more difficult to improve for thin product Brightness, because product is the thickest, brightness is the highest;The thinnest then brightness is the lowest.
At present, the mainstream technology of light guide plate has printing-type and non-printing formula two kinds, and printing-type is to utilize The printing material of high astigmatism source material (SiO2 and TiO2), is uniformly distributed in bottom surface of light guide plate.And Non-printing formula is to utilize accurate die to make fine V-groove, the production of recycling injection molding Pattern produces the light guide plate meeting optical characteristics.Precision Machining micro-grooves is used to make at present Light guiding board mould core has increasing trend, and its advantage is that optical characteristics is good, compared to button type system Journey can increase by the brightness value of about more than 10%, and its processing mode is suitable for being fabricated to accurate die to penetrate Going out the mode of production manufacture shaped, the light transmission for product can reduce loss, contribute to backlight The lifting of module performance.
Summary of the invention
Based on above problem, it is an object of the invention to provide a kind of light guide plate optical microstructures and Its processing method, the emitting brightness of raising light guide plate, and the thickness of light guide plate diminish and also will not reduce The light guide plate of its emitting brightness and processing method thereof.
A kind of light guide plate, including in order to reflect the reflecting surface of light, light-conductive media layer, in order to accept The plane of incidence of light, light collecting layer and exit facet.Described exit facet and described light-conductive media layer melt for Integrally, described reflecting surface combines together with described light-conductive media layer.
Wherein, described exit facet includes from top to bottom setting gradually the first light diffusion layer, brightening piece, First site layer and the second light diffusion layer, described first and second light diffusion layers are that light spreads graphite Layer;
Wherein, described reflecting surface includes the second site layer and the reflector plate from top to bottom set gradually Layer;
Wherein, described first site layer and described second site layer are reflecting ink layer, described first Multiple sites group is distributed on site layer and described second site layer, and each described site group includes one Individual female site and multiple sub-network group, multiple described sites group is along the direction being parallel to the described plane of incidence It is arranged into multiple row, along the close described plane of incidence to each column site, the direction group away from the described plane of incidence Number is gradually increased, along the close described plane of incidence to site group described in the direction away from the described plane of incidence Density be gradually increased;Described female site is positioned at the center of described site group, described sub-network position Around described female site, described sub-network is for adjusting the scattering power of described female site, institute State a diameter of described female site of sub-network diameter 1/20th;
Wherein, described reflective sheet layer is provided with V-groove micro structure, described V-groove micro structure bag Include the V-groove of the parallel plane of incidence and the V-groove two parts in vertical incidence face;Described reflective sheet layer with Described V-groove micro structure is formed in one structure.
Wherein, the described plane of incidence, described light-conductive media layer, described reflecting surface, light collecting layer and described Exit facet is integral structure.
Wherein, the second anti-reflection film, described exit facet it are additionally provided with between the described plane of incidence and light collecting layer The first light diffusion layer on be additionally provided with the first anti-reflection film, described first anti-reflection film and described second increases The method that permeable membrane all uses electronics to be deposited with is respectively formed on the described plane of incidence and on described exit facet.
The processing method that the light guide plate optical microstructures of the present invention is described below, the method includes successively Following steps:
(1) form reflective sheet layer, then form nickel coating in reflective sheet layer, then according to V The shape of type groove customizes corresponding cutter;
(2) on Digit Control Machine Tool, corresponding program is write to control the cutter surface in reflective sheet layer V-groove needed for upper processing;
(3) in the reflective sheet layer forming V-groove, form the second site layer, guide-lighting Jie successively Matter layer, the plane of incidence, the second anti-reflection film, light collecting layer, the second light diffusion layer, the first site layer, increasing Mating plate, the first light diffusion layer and the first anti-reflection film;
(4) light guiding board mould core processed is added on injection machine the material of injection, by squeezing Swaging becomes light guide plate.
Preferably, described V-groove to be shaped as angle+fillet, V angle, continuous R, R+ flat Platform, high seven short R types or the alternate V-groove of height.
Preferably, described cutter is circular arc R angle diamond cutter or angle type unicuspid diamond cutter.
Preferably, described Digit Control Machine Tool is numerical control planer.
Preferably, the material of described injection is the polymethyl methacrylate of optical grade.
Beneficial effects of the present invention: the light guide plate of the present invention, decreases the loss of light transmission, carries The high emitting brightness of light guide plate, and the thickness of light guide plate diminishes and also will not reduce its emitting brightness, Thus contribute to the lifting of backlight module performance.
Accompanying drawing explanation
Fig. 1 is the light guide plate optical microstructures schematic diagram of the present invention.
Fig. 2 is the schematic shapes of V-groove micro structure of the present invention.
In Fig. 2, label is described as follows: 21-angle+fillet, 22-V angle, the continuous R of 23-, 24-R+ Platform, the high seven short R types of 25-mono-, the 26-alternate V-groove of height.
Detailed description of the invention
The technical side of the present invention below in conjunction with the accompanying drawings and is further illustrated by detailed description of the invention Case.
A kind of light guide plate, including in order to reflect the reflecting surface of light, light-conductive media layer, in order to accept The plane of incidence of light, light collecting layer and exit facet.Described exit facet and described light-conductive media layer melt for Integrally, described reflecting surface combines together with described light-conductive media layer.
Wherein, described exit facet includes the first light diffusion layer 2 from top to bottom set gradually, adds lustre to Sheet the 3, first site layer 4 and the second light diffusion layer 5, described first light diffusion layer 2 and the second light Diffusion layer 5 spreads graphite linings for light;
Wherein, described reflecting surface includes the second site layer 10 and the reflection from top to bottom set gradually Lamella 12;
Wherein, described first site layer 4 and described second site layer 10 are reflecting ink layer, institute State and multiple sites group on the first site layer 4 and described second site layer 10, is distributed, each described Site group includes a female site and multiple sub-network group, and multiple described sites group is described along being parallel to The direction of the plane of incidence is arranged into multiple row, along the close described plane of incidence to the direction away from the described plane of incidence The number of each column site group is gradually increased, along the close described plane of incidence to the side away from the described plane of incidence Density to described site group is gradually increased;Described female site is positioned at the center of described site group, Described sub-network is positioned at around described female site, and described sub-network is for adjusting described female site Scattering power, 1st/20th of the diameter of a diameter of described female site of described sub-network;
Wherein, described reflective sheet layer 12 being provided with V-groove micro structure 11, described V-groove is micro- Structure 11 includes the V-groove of the parallel plane of incidence and the V-groove two parts in vertical incidence face;Described Reflective sheet layer 12 and described V-groove micro structure 11 are formed in one structure.
Wherein, the described plane of incidence 8, described light-conductive media layer 9, described reflecting surface, light collecting layer 6 It is integral structure with described exit facet.
Wherein, between the described plane of incidence 8 and light collecting layer 6, it is additionally provided with the second anti-reflection film 7, described The first anti-reflection film 1, described first anti-reflection film 1 it is additionally provided with on first light diffusion layer 2 of exit facet The method all using electronics to be deposited with described second anti-reflection film 7 be respectively formed on the described plane of incidence and On described exit facet.
The processing method that the light guide plate optical microstructures of the present invention is described below, the method includes successively Following steps:
(1) form reflective sheet layer 12, then form nickel coating in reflective sheet layer, then according to The shape of V-groove micro structure customizes corresponding cutter;
(2) on Digit Control Machine Tool, corresponding program is write to control the cutter surface in reflective sheet layer V-groove 11 needed for upper processing;
(3) formed in the reflective sheet layer 12 formed V-groove 11 successively the second site layer 10, Light-conductive media layer 9, the plane of incidence the 8, second anti-reflection film 7, light collecting layer the 6, second light diffusion layer 5, First site layer 4, brightening piece the 3, first light diffusion layer 2 and the first anti-reflection film 1;
(4) light guiding board mould core processed is added on injection machine the material of injection, by squeezing Swaging becomes light guide plate.
Preferably, described V-groove micro structure be shaped as angle+fillet, V angle, continuous R, R+ platform or high seven short R types.
Preferably, described cutter is circular arc R angle diamond cutter or angle type unicuspid diamond cutter.
Preferably, described Digit Control Machine Tool is numerical control planer.
Preferably, the material of described injection is the polymethyl methacrylate of optical grade.
The above embodiment of the present invention is only for clearly demonstrating example of the present invention, and also Non-is the restriction to embodiments of the present invention.And extended for belonging to the connotation of the present invention The obvious change gone out or variation still fall within the protection domain that the present invention is novel.

Claims (7)

1. a light guide plate, it is characterised in that: there is in described light guide plate V-groove micro structure.
Light guide plate the most according to claim 1, it is characterised in that: described light guide plate include reflecting the reflecting surface of light, light-conductive media layer, in order to accept the plane of incidence of light, light collecting layer and exit facet.Described exit facet combines together with described light-conductive media layer, and described reflecting surface combines together with described light-conductive media layer.
Light guide plate the most according to claim 2, it is characterized in that: wherein, described exit facet includes the first light diffusion layer, brightening piece, the first site layer and the second light diffusion layer from top to bottom set gradually, and described first and second light diffusion layers are that light spreads graphite linings;Described reflecting surface includes the second site layer and the reflective sheet layer from top to bottom set gradually;Described first site layer and described second site layer are reflecting ink layer, multiple sites group is distributed on described first site layer and described second site layer, each described site group includes a female site and multiple sub-network group, multiple described sites group is arranged into multiple row along the direction being parallel to the described plane of incidence, it is gradually increased along the number near the described plane of incidence to each column site, the direction group away from the described plane of incidence, is gradually increased to the density of site group described in the direction away from the described plane of incidence along near the described plane of incidence;Described female site is positioned at the center of described site group, and described sub-network is positioned at around described female site, and described sub-network is used for adjusting the scattering power of described female site, 1st/20th of the diameter of a diameter of described female site of described sub-network.
Light guide plate the most according to claim 1, it is characterised in that:
Wherein, the V-groove micro structure in described reflective sheet layer includes the V-groove of the parallel plane of incidence and the V-groove two parts in vertical incidence face;Described reflective sheet layer and described V-groove micro structure are formed in one structure.
Light guide plate the most according to claim 2 is characterized in that: wherein, and the described plane of incidence, described light-conductive media layer, described reflecting surface, light collecting layer and described exit facet are integral structures;The second anti-reflection film it is additionally provided with between the described plane of incidence and light collecting layer, it is additionally provided with the method that the first anti-reflection film, described first anti-reflection film and described second anti-reflection film all use electronics to be deposited with on first light diffusion layer of described exit facet to be respectively formed on the described plane of incidence and on described exit facet.
6. the processing method of a light guide plate, it is characterised in that: in turn include the following steps:
(1) forming reflective sheet layer, then forming nickel coating in reflective sheet layer, the shape then according to V-groove micro structure customizes corresponding cutter;
(2) on Digit Control Machine Tool, write corresponding program on the surface of reflective sheet layer, process required V-groove micro structure to control cutter;
(3) in the reflective sheet layer forming V-groove micro structure, the second site layer, light-conductive media layer, the plane of incidence, the second anti-reflection film, light collecting layer, the second light diffusion layer, the first site layer, brightening piece, the first light diffusion layer and the first anti-reflection film are formed successively;
(4) light guiding board mould core processed is added on injection machine the material of injection, forms light guide plate by extruding.
The processing method of light guide plate the most according to claim 6, it is characterised in that: described V-groove micro structure be shaped as angle+fillet, V angle, continuous R, R+ platform, high seven short R types or height alternate V-type.
CN201610485932.9A 2016-06-28 2016-06-28 Light guide plate optical microstructure and processing method thereof Pending CN106019457A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610485932.9A CN106019457A (en) 2016-06-28 2016-06-28 Light guide plate optical microstructure and processing method thereof

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Application Number Priority Date Filing Date Title
CN201610485932.9A CN106019457A (en) 2016-06-28 2016-06-28 Light guide plate optical microstructure and processing method thereof

Publications (1)

Publication Number Publication Date
CN106019457A true CN106019457A (en) 2016-10-12

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1664661A (en) * 2004-03-05 2005-09-07 鸿富锦精密工业(深圳)有限公司 Light conducting plate
CN2862090Y (en) * 2005-10-12 2007-01-24 群康科技(深圳)有限公司 Two-side display LCD
CN101846844A (en) * 2009-03-26 2010-09-29 思鹭科技股份有限公司 Method for manufacturing light guide module
CN104267458A (en) * 2008-06-23 2015-01-07 索尼公司 Plane Light Source Device And Display Device
CN104781603A (en) * 2012-11-14 2015-07-15 松下知识产权经营株式会社 Light source device
CN104802340A (en) * 2015-05-20 2015-07-29 深圳市汇晨电子有限公司 Method for processing V-shaped groove of light guide plate
CN104820258A (en) * 2015-04-24 2015-08-05 深圳市汇晨电子有限公司 Integrated light guide plate having light diffusion function

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1664661A (en) * 2004-03-05 2005-09-07 鸿富锦精密工业(深圳)有限公司 Light conducting plate
CN2862090Y (en) * 2005-10-12 2007-01-24 群康科技(深圳)有限公司 Two-side display LCD
CN104267458A (en) * 2008-06-23 2015-01-07 索尼公司 Plane Light Source Device And Display Device
CN101846844A (en) * 2009-03-26 2010-09-29 思鹭科技股份有限公司 Method for manufacturing light guide module
CN104781603A (en) * 2012-11-14 2015-07-15 松下知识产权经营株式会社 Light source device
CN104820258A (en) * 2015-04-24 2015-08-05 深圳市汇晨电子有限公司 Integrated light guide plate having light diffusion function
CN104802340A (en) * 2015-05-20 2015-07-29 深圳市汇晨电子有限公司 Method for processing V-shaped groove of light guide plate

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Application publication date: 20161012