CN109839692A - A kind of heat dissipation glass light guide plate and preparation method thereof - Google Patents

A kind of heat dissipation glass light guide plate and preparation method thereof Download PDF

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Publication number
CN109839692A
CN109839692A CN201910081662.9A CN201910081662A CN109839692A CN 109839692 A CN109839692 A CN 109839692A CN 201910081662 A CN201910081662 A CN 201910081662A CN 109839692 A CN109839692 A CN 109839692A
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CN
China
Prior art keywords
guide plate
light
light guide
heat dissipation
glass
Prior art date
Application number
CN201910081662.9A
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Chinese (zh)
Inventor
林垦
茅丹
初文静
林俊良
林金锡
林金汉
Original Assignee
凤阳硅谷智能有限公司
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Application filed by 凤阳硅谷智能有限公司 filed Critical 凤阳硅谷智能有限公司
Priority to CN201910081662.9A priority Critical patent/CN109839692A/en
Publication of CN109839692A publication Critical patent/CN109839692A/en

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Abstract

The present invention relates to light guide plate technical fields, and in particular to a kind of heat dissipation glass light guide plate and preparation method thereof.The heat dissipation glass light guide plate of the present embodiment, including glass substrate, the glass substrate includes to receive the incidence surface of incident light, the light-emitting surface adjacent with the incidence surface and the reflective surface opposite with the light-emitting surface, the light-emitting surface is equipped with continuous concaveconvex structure, and the concaveconvex structure is made of the ink containing heat sink material;The reflective surface is equipped with light scattering netted dot.Heat dissipation glass light guide plate of the invention, concaveconvex structure have focusing light effect, it is possible to reduce the use of diffusion sheet or prism improves the heat dissipation effect of glass light guide plate in addition, the concaveconvex structure is made of the ink containing heat sink material while not increasing thickness.

Description

A kind of heat dissipation glass light guide plate and preparation method thereof

Technical field

The present invention relates to light guide plate technical fields, and in particular to a kind of heat dissipation glass light guide plate and preparation method thereof.

Background technique

Liquid crystal display is formed by combining by glass front shroud, liquid crystal display panel, backlight module, glass back plate, backlight module For the light source that one of the key components and parts of panel of LCD, function are well-off brightness and are evenly distributed, make It can normally show image.The illumination effect of light guide plate imitates the vision for directly influencing LCD MODULE in backlight module Fruit.When being irradiated on liquid crystal display panel by the light that light guide plate issues, light can first pass through lower polarizing film and appear upwards, different liquid Light is changed polarization direction according to respective mechanism by crystal panel, and following light contacts to colored filter generate color, most After be incident on upper polarizer.After by liquid crystalline transition polarization direction, there is some light that can be emitted, has part that can be absorbed.It is whole Each pixel can determine respectively the intensity of emergent ray on a liquid crystal display panel, to generate image.

The light that light source issues has heat radiation, and closer to light source, temperature is higher, and glass has double photosensitiveness, can generate color difference And light leakage, while the high liquid crystal display of temperature is easy to happen failure.Liquid crystal display is imitated at present in order to promote internal heat dissipation Fruit generally can increase by one piece of metal fin as radiating module at the back side of backlight module, but the presence of metal fin The thickness that will increase liquid crystal display influences the beauty of liquid crystal display.

Summary of the invention

The purpose of the present invention is to provide a kind of heat dissipation glass light guide plate, which is equipped with recessed Male structure is made of the ink containing heat sink material, which has heat spreading function while optically focused.

Second object of the present invention is to provide a kind of preparation method of glass light guide plate that radiates.

To achieve the above object, the technical scheme is that

A kind of heat dissipation glass light guide plate, including glass substrate, the glass substrate include entering light to receive incident light Face, the light-emitting surface adjacent with the incidence surface and the reflective surface opposite with the light-emitting surface, the light-emitting surface are equipped with continuous Concaveconvex structure, the concaveconvex structure is made of the ink containing heat sink material;The reflective surface is equipped with light scattering netted dot.

The partial size of the heat sink material is 1~10nm.The heat sink material is transparent.

The mass fraction of the heat sink material is 1~15%, and the heat sink material is graphene, in boron nitride, aluminium oxide Any one.The graphene is single-layer graphene.

The section of the protrusion of the concaveconvex structure is V-arrangement or arc.

The depth-width ratio of the protrusion is 5~35:100.

The preparation method of above-mentioned heat dissipation glass light guide plate, comprising the following steps:

1) site processing is carried out to the reflective surface of glass substrate, forms light scattering netted dot in reflective surface;

2) light-emitting surface using the method for silk-screen printing in glass substrate coats the ink containing heat sink material, described after molding Ink containing heat sink material forms concaveconvex structure in light-emitting surface.

Glass substrate in step 1) is cleaned before carrying out site processing.

The beneficial effects of the present invention are:

Glass light guide plate of the invention, including glass substrate, the light-emitting surface of the glass substrate is equipped with concaveconvex structure, described Concaveconvex structure is made of the ink containing heat sink material, and the concaveconvex structure has focusing light effect, it is possible to reduce diffusion sheet or prism Use it is guide-lighting that glass is improved while not increasing thickness in addition, the concaveconvex structure is made of the ink containing heat sink material The heat dissipation effect of plate improves the service life of glass light guide plate;The reflective surface of the glass substrate is equipped with lattice point structure, the net Point structure is diffusing structure, can will scatter to the light-emitting surface of glass substrate through lattice point structure from the light of incidence surface incidence, enhancing The optical property of glass light guide plate.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the heat dissipation glass light guide plate in embodiment 1;

Assembling schematic diagram when Fig. 2 is the glass light guide plate progress optic test in embodiment 1.

Specific embodiment

Presently in connection with attached drawing, the present invention is described in detail.This figure is simplified schematic diagram, is only illustrated in a schematic way Basic structure of the invention, therefore it only shows the composition relevant to the invention.

Embodiment 1

The heat dissipation glass light guide plate of the present embodiment, as shown in Figure 1, including glass substrate 1, the glass substrate 1 includes using To receive the incidence surface 2, the light-emitting surface 3 adjacent with the incidence surface 2 and the reflective surface opposite with the light-emitting surface 3 of incident light 4, the light-emitting surface 3 is equipped with continuous concaveconvex structure 5, and the reflective surface 4 is equipped with light scattering netted dot 6;The concaveconvex structure 5 It is made of the ink of containing graphene, the mass fraction of graphene is 10% in the ink of the containing graphene, the quality point of ink Number is 90%;The partial size of graphene particles is 1~10nm;The protrusion of the concaveconvex structure 5 is V-arrangement, the height of the V-arrangement protrusion It is 10 μm, width is 100 μm.

The glass substrate of the present embodiment is the high saturating float glass of ultrawhite.

The preparation method of the heat dissipation glass light guide plate of the present embodiment, comprising the following steps:

1) glass substrate is put into glass cleaning machine and the surface of glass substrate is cleaned using hairbrush water spray,

2) by net-pont design, in the reflective surface progress site processing of glass substrate by the way of silk-screen printing, and in Then 150 DEG C of heat preservation 30min drying and processings enclose plastic protective film for plastics in dot surface and carry out being protected from site abrasion to dot surface With it is dirty;

3) oil containing graphene that coating thickness is 40 μm in the way of silk-screen printing in the light-emitting surface of glass substrate Ink, the ink containing graphene forms the concaveconvex structure that convex cross section is V-arrangement, V-arrangement protrusion in light-emitting surface after curing molding Height be 10 μm, width be 100 μm.

Embodiment 2

The heat dissipation glass light guide plate of the present embodiment, including glass substrate, the glass substrate include to receive incident light Incidence surface, the light-emitting surface adjacent with the incidence surface and the reflective surface opposite with the light-emitting surface, set on the light-emitting surface There is continuous concaveconvex structure, the reflective surface is equipped with light scattering netted dot;The concaveconvex structure is made of the ink of nitrogen boron, The mass fraction of boron nitride is 5% in the ink of the nitrogen boron, and the mass fraction of ink is 95%;The boron nitride is Granular, the partial size of boron nitride particle is 1~10nm;The protrusion of the concaveconvex structure is arc, and the height of the arc convex is 35 μm, width is 350 μm.

The glass substrate of the present embodiment is the high saturating float glass of ultrawhite.

The preparation method of the heat dissipation glass light guide plate of the present embodiment, comprising the following steps:

1) glass substrate is put into glass cleaning machine and the surface of glass substrate is cleaned using hairbrush water spray,

2) by net-pont design, in the reflective surface progress site processing of glass substrate by the way of silk-screen printing, and in Then 150 DEG C of heat preservation 30min drying and processings enclose plastic protective film for plastics in dot surface and carry out being protected from site abrasion to dot surface With it is dirty;

3) oil containing boron nitride that coating thickness is 40 μm in the way of silk-screen printing in the light-emitting surface of glass substrate Ink, the ink containing boron nitride forms the concaveconvex structure that convex cross section is arc in light-emitting surface after curing molding, and arc is convex The height risen is 35 μm, and width is 350 μm.

Embodiment 3

The heat dissipation glass light guide plate of the present embodiment, including glass substrate, the glass substrate include to receive incident light Incidence surface, the light-emitting surface adjacent with the incidence surface and the reflective surface opposite with the light-emitting surface, set on the light-emitting surface There is continuous concaveconvex structure, the reflective surface is equipped with light scattering netted dot;The concaveconvex structure is made of salic ink, The mass fraction of aluminium oxide is 15% in the salic ink, and the mass fraction of ink is 85%;The aluminium oxide is Graininess, the partial size of alumina particle are 1~10nm;The protrusion of the concaveconvex structure is V-arrangement, and the height of the V-arrangement protrusion is 35 μm, width is 100 μm.

The glass substrate of the present embodiment is the high saturating float glass of ultrawhite.

The preparation method of the heat dissipation glass light guide plate of the present embodiment, comprising the following steps:

1) glass substrate is put into glass cleaning machine and the surface of glass substrate is cleaned using hairbrush water spray,

2) by net-pont design, in the reflective surface progress site processing of glass substrate by the way of silk-screen printing, and in Then 150 DEG C of heat preservation 30min drying and processings enclose plastic protective film for plastics in dot surface and carry out being protected from site abrasion to dot surface With it is dirty;

3) oil containing aluminium oxide that coating thickness is 40 μm in the way of silk-screen printing in the light-emitting surface of glass substrate Ink, the ink containing aluminium oxide forms the concaveconvex structure that convex cross section is V-arrangement, V-arrangement protrusion in light-emitting surface after curing molding Height be 35 μm, width be 100 μm.

Embodiment 4

The heat dissipation glass light guide plate of the present embodiment, including glass substrate, the glass substrate include to receive incident light Incidence surface, the light-emitting surface adjacent with the incidence surface and the reflective surface opposite with the light-emitting surface, set on the light-emitting surface There is continuous concaveconvex structure, the reflective surface is equipped with light scattering netted dot;The concaveconvex structure is made of the ink of nitrogen boron, The mass fraction of boron nitride is 1% in the ink of the nitrogen boron, and the mass fraction of ink is 99%;The boron nitride is Granular, the partial size of boron nitride particle is 1~10nm;The protrusion of the concaveconvex structure is arc, and the height of the arc convex is 5 μm, width is 100 μm.

The glass substrate of the present embodiment is the high saturating float glass of ultrawhite.

The preparation method of the heat dissipation glass light guide plate of the present embodiment, comprising the following steps:

1) glass substrate is put into glass cleaning machine and the surface of glass substrate is cleaned using hairbrush water spray,

2) by net-pont design, in the reflective surface progress site processing of glass substrate by the way of silk-screen printing, and in Then 150 DEG C of heat preservation 30min drying and processings enclose plastic protective film for plastics in dot surface and carry out being protected from site abrasion to dot surface With it is dirty;

3) oil containing boron nitride that coating thickness is 40 μm in the way of silk-screen printing in the light-emitting surface of glass substrate Ink, the ink containing boron nitride forms the concaveconvex structure that convex cross section is arc in light-emitting surface after curing molding, and arc is convex The height risen is 5 μm, and width is 100 μm.

In other embodiments of the present invention, the mode that site processes in step 2) can also be laser ablation, chemistry The existing site processing methods such as etching.

Comparative example

This comparative example glass light guide plate and the difference of embodiment 1 are only that the concaveconvex structure is made of ink.

Experimental example

By taking the heat dissipation glass light guide plate in embodiment 1 as an example, as shown in Fig. 2, being arranged one layer in the top of glass light guide plate Optical film 7 applies LED light source in the incidence surface of glass light guide plate, surveys to the illumination of glass light guide plate, color difference and the uniformity Examination, test method are as follows:

9 average illuminations are that glass light guide plate is divided into nine areas using nine grids form, are tested shine with illumination photometer respectively Degree is averaged;

9 average homogeneous degree are the forms for taking nine grids, and glass light guide plate is divided into 9 areas, measures the illumination in each area, It is added using 9 points and obtains average value divided by 9, then obtain the uniformity divided by average value with minimum point;

Color difference is tested by colour difference meter.

The test method and assembling of embodiment 2-4 and the glass light guide plate in comparative example are the same as embodiment 1.

The optical property and operating temperature test result of embodiment 1-4 and the glass light guide plate in comparative example are shown in Table 1.

Illumination, color difference and the uniformity test result of 1 embodiment 1-4 of table and the glass light guide plate in comparative example

By 1 test result of table it is found that in embodiment 1-4 glass light guide plate obtained average illumination, the uniformity and color difference It is not much different with comparative example, reaches technical requirements, illustrates that concaveconvex structure has the effect of optically focused and improves optical uniformity, it can be with Reduce the usage quantity of optical film.In addition, the temperature of glass light guide plate is significantly lower than comparative example in embodiment 1-4, illustrate this hair The bright ink layer containing heat sink material has good heat dissipation effect.Double embossing glass that the present invention is prepared by integral forming process Glass light guide plate can achieve the optical specification of backlight module, and reduce the use of optical film, improve heat dissipation effect, Preparation process flow is simplified, preparation cost is reduced, the application prospect having had.

Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff Various changes and amendments can be carried out without departing from the scope of the present invention completely.The technical scope of this invention is not The content being confined on specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.

Claims (7)

1. a kind of heat dissipation glass light guide plate, which is characterized in that including glass substrate, the glass substrate includes to receive incidence The incidence surface of light, the light-emitting surface adjacent with the incidence surface and the reflective surface opposite with the light-emitting surface, on the light-emitting surface Equipped with continuous concaveconvex structure, the concaveconvex structure is made of the ink containing heat sink material;The reflective surface is scattered equipped with light Site.
2. heat dissipation glass light guide plate according to claim 1, which is characterized in that the partial size of the heat sink material be 1~ 10nm。
3. heat dissipation glass light guide plate according to claim 1, which is characterized in that the mass fraction of the heat sink material is 1 ~15%, the heat sink material is graphene, boron nitride, any one in aluminium oxide.
4. heat dissipation glass light guide plate according to claim 1, which is characterized in that the section of the protrusion of the concaveconvex structure is V-arrangement or arc.
5. heat dissipation glass light guide plate according to claim 4, which is characterized in that the depth-width ratio of the protrusion is 5~35:100.
6. a kind of preparation method of heat dissipation glass light guide plate as described in any one in claim 1-5, which is characterized in that including with Lower step:
1) site processing is carried out to the reflective surface of glass substrate, forms light scattering netted dot in reflective surface;
2) light-emitting surface using the method for silk-screen printing in glass substrate coats the ink containing heat sink material, described containing scattered after molding The ink of hot material forms concaveconvex structure in light-emitting surface.
7. the preparation method of heat dissipation glass light guide plate according to claim 6, which is characterized in that the glass base in step 1) Plate is cleaned before carrying out site processing.
CN201910081662.9A 2019-01-28 2019-01-28 A kind of heat dissipation glass light guide plate and preparation method thereof CN109839692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910081662.9A CN109839692A (en) 2019-01-28 2019-01-28 A kind of heat dissipation glass light guide plate and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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CN109839692A true CN109839692A (en) 2019-06-04

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201429754A (en) * 2013-01-23 2014-08-01 Yu-Chen Hwang A 3D printed decorative film and products made thereof
CN107728251A (en) * 2017-10-27 2018-02-23 周燕红 A kind of edge-type light guide plate, the preparation method of edge-type light guide plate and backlight module
CN207337008U (en) * 2017-11-10 2018-05-08 欧浦登(顺昌)光学有限公司 A kind of high-penetration high-brightness glass diffuser plate
CN207421913U (en) * 2017-11-02 2018-05-29 杭州立源光电科技有限公司 A kind of LED backlight module
CN108873484A (en) * 2018-08-27 2018-11-23 安徽高美福电子有限公司 A kind of backlight assembly of the printing diffuser plate containing quantum dot

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201429754A (en) * 2013-01-23 2014-08-01 Yu-Chen Hwang A 3D printed decorative film and products made thereof
CN107728251A (en) * 2017-10-27 2018-02-23 周燕红 A kind of edge-type light guide plate, the preparation method of edge-type light guide plate and backlight module
CN207421913U (en) * 2017-11-02 2018-05-29 杭州立源光电科技有限公司 A kind of LED backlight module
CN207337008U (en) * 2017-11-10 2018-05-08 欧浦登(顺昌)光学有限公司 A kind of high-penetration high-brightness glass diffuser plate
CN108873484A (en) * 2018-08-27 2018-11-23 安徽高美福电子有限公司 A kind of backlight assembly of the printing diffuser plate containing quantum dot

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