CN109683229A - A kind of preparation method of glass light guide plate - Google Patents
A kind of preparation method of glass light guide plate Download PDFInfo
- Publication number
- CN109683229A CN109683229A CN201910082875.3A CN201910082875A CN109683229A CN 109683229 A CN109683229 A CN 109683229A CN 201910082875 A CN201910082875 A CN 201910082875A CN 109683229 A CN109683229 A CN 109683229A
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- China
- Prior art keywords
- light guide
- guide plate
- site
- glass
- preparation
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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
- G02B6/004—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
- G02B6/0065—Manufacturing aspects; Material aspects
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Surface Treatment Of Glass (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention relates to a kind of preparation methods of glass light guide plate, comprising the following steps: 1) glass substrate is heated to semi-molten state, and will wherein be used as dot surface on one side；2) site is formed on the dot surface by the way of laser dotting when the dot surface is in semi-molten state, cooling later to obtain the final product.The preparation method of glass light guide plate of the present invention, it is simple and fast, it is suitble to mass production, and there is no crackle around glass light guide plate site made from this method, substantially increase the strength of glass of glass light guide plate, and the optical property of glass light guide plate is also promoted, and the service life of glass light guide plate is extended.
Description
Technical field
The present invention relates to light guide plate technical fields, and in particular to a kind of preparation method of glass light guide plate.
Background technique
In a liquid crystal display, light guide plate is mainly used for the linear light source that light source issues being converted into area source so that display picture
The brightness uniformity in face.The material of conventional light guiding plate has polymethyl methacrylate (PMMA), polycarbonate (PC) etc., pushes away in recent years
A kind of light guide plate of glass substrate production out, it is stronger compared to the light guide plate intensity of traditional material, on large-sized tv product
Mould group can be made to become thinner.Currently, generally there are three types of modes for the production of glass light guide plate site: one is silk screen print methods, excellent
Point is to can be mass, but have some disadvantages: that 1. ink and glass chemistry property are variant, is also easy to produce color difference；2. ink is attached
Put forth effort difference, is easy to peel off or be partially stripped；3. extra small site production is poor；Another kind be by laser dotting make site, but
It is also easy to produce blind crack around site, influences strength of glass and product quality；The third mode is etched using hydrogen fluoride
Light guide plate mesh point is formed, but its process is more, process is complicated, is unfavorable for mass production.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation method of glass light guide plate, the convenient and efficient suitable volume production of this method and
Micro-crack is not likely to produce around site.
To achieve the above object, the technical scheme is that
A kind of preparation method of glass light guide plate, comprising the following steps:
1) glass substrate is heated to semi-molten state, and will be wherein used as dot surface on one side；
2) net is formed on the dot surface by the way of laser dotting when the dot surface is in semi-molten state
Point, cooling later to obtain the final product.
The temperature that semi-molten state is heated in step 1) is 600~750 DEG C.
It is above-mentioned that glass substrate is heated to by semi-molten state using toughened glass production line.
Glass substrate in step 1) is cleaned before heating, dries glass substrate after cleaning.
The cleaning uses water, ethyl alcohol or ethylene glycol.
Laser dotting in step 2) is carried out using laser dotting equipment.The laser dotting equipment is arranged in tempered glass
The discharge port of production line heating zone.
The site is along the convex site of the dot surface or the site recessed along the dot surface.
The preparation process of the above-mentioned site recessed along the dot surface are as follows: finish the corresponding program of stipple pattern in advance, directly
The progress laser dotting at site is connect, the site recessed along the dot surface is formed.
The preparation process of the above-mentioned site convex along the dot surface are as follows: the corresponding program of stipple pattern is finished in advance, it will
Region other than site is etched away by way of laser dotting, forms the site convex along the dot surface.
The preparation method of glass light guide plate of the invention carries out laser dotting when glass substrate is in semi-molten state,
The generation of glass surface micro-crack is avoided, to ensure that glass light guide plate obtained has preferable strength of glass, and nothing
Color difference, nothing fall off, are not easy embrittlement, and light conductivity is good and site effect is good.In addition, the preparation method of glass light guide plate of the invention walks
It is rapid simple, it is convenient and efficient, it is suitable for mass production.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of glass light guide plate obtained in embodiment 1；
Fig. 2 is the structural schematic diagram of glass light guide plate in embodiment 3；
Pattern schematic diagram of the Fig. 3 for glass light guide plate obtained in embodiment 1 under the microscope；
Pattern schematic diagram of the Fig. 4 for glass light guide plate obtained in comparative example 1 under the microscope.
Specific embodiment
Embodiment 1
The preparation method of the present embodiment glass light guide plate, comprising the following steps:
1) glass substrate is cleaned using deionized water, later heating, drying；
2) glass substrate is heated to 600 DEG C using toughened glass production line, is at semi-molten state, it will wherein one
Face is as dot surface；
3) laser dotting equipment is set in the heating zone discharge port of toughened glass production line, takes advantage of dot surface and is in semi-molten shape
State, laser dotting equipment finish the corresponding program of stipple pattern, and laser dotting is carried out directly at site, are formed under dot surface
Recessed site；
4) glass substrate is entered into the cooling blanking in cooling zone to get glass light guide plate.
As shown in Figure 1, be the structural schematic diagram of the present embodiment glass light guide plate, including glass substrate 1 and it is located at described
Recessed site 2 in 1 one side of glass substrate.
Embodiment 2
The preparation method of the present embodiment glass light guide plate, comprising the following steps:
1) glass substrate is cleaned using ethyl alcohol, is dried later；
2) glass substrate is heated to 650 DEG C using toughened glass production line, is at semi-molten state, it will wherein one
Face is as dot surface；
3) laser dotting equipment is set in the heating zone discharge port of toughened glass production line, takes advantage of dot surface and is in semi-molten shape
State, laser dotting equipment finish the corresponding program of stipple pattern, and laser dotting is carried out directly at site, are formed under dot surface
Recessed site；
4) glass substrate is entered into the cooling blanking in cooling zone to get glass light guide plate.
Embodiment 3
The preparation method of the present embodiment glass light guide plate, comprising the following steps:
1) glass substrate is cleaned using deionized water, later heating, drying；
2) glass substrate is heated to 700 DEG C using toughened glass production line, is at semi-molten state, it will wherein one
Face is as dot surface；
3) laser dotting equipment is set in the heating zone discharge port of toughened glass production line, takes advantage of dot surface and is in semi-molten shape
State, laser dotting equipment finish the corresponding program of stipple pattern, the side that the region other than dot surface site is passed through laser dotting
Formula etches away, and forms the site convex along the dot surface；
4) glass substrate is entered into the cooling blanking in cooling zone to get glass light guide plate.
As shown in Fig. 2, be the structural schematic diagram of the present embodiment glass light guide plate, including glass substrate 1 and it is located at described
The convex site 3 of 1 one side of glass substrate.
Embodiment 4
The preparation method of the present embodiment glass light guide plate, comprising the following steps:
1) glass substrate is cleaned using deionized water, later heating, drying；
2) glass substrate is heated to 750 DEG C using toughened glass production line, is at semi-molten state, it will wherein one
Face is as dot surface；
3) laser dotting equipment is set in the heating zone discharge port of toughened glass production line, takes advantage of dot surface and is in semi-molten shape
State, laser dotting equipment finish the corresponding program of stipple pattern, the side that the region other than dot surface site is passed through laser dotting
Formula etches away, and forms the site convex along the dot surface；
4) glass substrate is entered into the cooling blanking in cooling zone to get glass light guide plate.
Comparative example 1
The production method of this comparative example glass light guide plate, includes the following steps:
1) glass substrate is cleaned using deionized water, later heating, drying；
2) using one of surface of glass substrate as dot surface；
3) laser dotting equipment finishes the corresponding program of stipple pattern, and laser is carried out directly at the site of dot surface and is beaten
Point forms the site recessed along dot surface；
4) with deionized water that surface washing is clean, glass light guide plate obtained by drying.
Comparative example 2
The production method of this comparative example glass light guide plate, includes the following steps:
1) glass substrate is cleaned using deionized water, later heating, drying；
2) using one of surface of glass substrate as dot surface；
3) laser dotting equipment finishes the corresponding program of stipple pattern, and the region other than dot surface site is beaten by laser
The mode of point etches away, and forms the site convex along dot surface；
4) with deionized water that surface washing is clean, glass light guide plate obtained by drying.
Experimental example 1
Glass light guide plate made from 1 method of glass light guide plate made from 1 method of embodiment and comparative example is respectively placed in aobvious
Observation of taking pictures is carried out under micro mirror (Nikon, ECLIPSE LV100D-U), it is as a result as shown in Figure 3 and Figure 4 respectively.It is illustrated in figure 3
The microscopic appearance schematic diagram of glass light guide plate made from embodiment 1 under the microscope, from the figure 3, it may be seen that embodiment 1 is first by glass base
Plate is heated to semi-molten and carries out laser dotting again, relatively smooth around the site 2 of glass light guide plate obtained not have crackle substantially；
And Fig. 4 comparative example 1 directly carries out more coarse, shape around the site 4 of glass light guide plate made from laser dotting to glass substrate
At micro-crack 5, the intensity and optical property of light guide plate are influenced.
Experimental example 2
Strength of glass test and optical performance test are carried out to glass light guide plate made from embodiment 1-4 and comparative example 1-2,
The results are shown in Table 1.Wherein strength of glass according to national standards tested by method, and 9 average illuminations are using nine grids shape
Glass light guide plate is divided into nine areas by formula, is averaged respectively with illumination photometer test illumination.9 uniformitys are to take nine grids
Form glass light guide plate is divided into nine areas, measure the illumination in each area, be added using nine points and obtain average value divided by 9, then
The uniformity is obtained divided by average value with minimum point.X color difference and Y color difference are tested by colour difference meter.
The performance test results of glass light guide plate made from table 1 embodiment 1-4 and comparative example 1-2
By 1 test result of table it is found that the strength of glass of glass light guide plate obtained in embodiment 1-4, average illumination and
Evenness is apparently higher than comparative example 1 and comparative example 2, illustrates that the present invention carries out laser dotting in the case where glass substrate is in semi-molten state
Site is made, does not have micro-crack around site, so that glass light guide plate obtained degree to be illuminated is higher and luminous more equal
It is even；Color difference relative contrast's example 1-2 of light guide plate made from embodiment 1-4 is declined, and illustrates the light guide plate hair in embodiment 1-4
Optical uniformity is good, and defect is few.In conclusion glass substrate is first under semi-molten state by the present invention carries out laser dotting again,
Glass light guide plate obtained either increases in terms of strength of glass or optical property.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection scope of the claims in the present invention
Within.
Claims (8)
1. a kind of preparation method of glass light guide plate, which comprises the following steps:
1) glass substrate is heated to semi-molten state, and will be wherein used as dot surface on one side；
2) site is formed on the dot surface by the way of laser dotting when the dot surface is in semi-molten state, it
It cools down afterwards to obtain the final product.
2. the preparation method of glass light guide plate according to claim 1, which is characterized in that be heated to semi-molten in step 1)
The temperature of state is 600~750 DEG C.
3. the preparation method of glass light guide plate according to claim 1, which is characterized in that the glass substrate in step 1) exists
It is cleaned before heating, is dried glass substrate after cleaning.
4. the preparation method of glass light guide plate according to claim 3, which is characterized in that the cleaning uses water, ethyl alcohol
Or ethylene glycol.
5. the preparation method of glass light guide plate according to claim 1, which is characterized in that the laser dotting in step 2) is adopted
It is carried out with laser dotting equipment.
6. the preparation method of glass light guide plate according to claim 1, which is characterized in that the site is along the site
The convex site in face or the site recessed along the dot surface.
7. the preparation method of glass light guide plate according to claim 6, which is characterized in that the net recessed along the dot surface
The preparation process of point are as follows: finish the corresponding program of stipple pattern in advance, laser dotting is carried out directly at site, formed along described
The recessed site of dot surface.
8. the preparation method of glass light guide plate according to claim 6, which is characterized in that the net convex along the dot surface
The preparation process of point are as follows: the corresponding program of stipple pattern is finished in advance, by the region other than site by way of laser dotting
It etches away, forms the site convex along the dot surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910082875.3A CN109683229B (en) | 2019-01-24 | 2019-01-24 | Preparation method of glass light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910082875.3A CN109683229B (en) | 2019-01-24 | 2019-01-24 | Preparation method of glass light guide plate |
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| Publication Number | Publication Date |
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| CN109683229A true CN109683229A (en) | 2019-04-26 |
| CN109683229B CN109683229B (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910082875.3A Active CN109683229B (en) | 2019-01-24 | 2019-01-24 | Preparation method of glass light guide plate |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201945708U (en) * | 2011-02-22 | 2011-08-24 | 苏州茂立光电科技有限公司 | Light guide plate, backlight module and display device of same |
| CN102338983A (en) * | 2010-07-14 | 2012-02-01 | 韩国科学技术院 | Pattern manufacturing method |
| CN102862112A (en) * | 2012-07-19 | 2013-01-09 | 京东方科技集团股份有限公司 | Machining device for template of light guide plate and machining method thereof |
| CN103938230A (en) * | 2013-01-21 | 2014-07-23 | 鸿富锦精密工业（深圳）有限公司 | Manufacturing method for light guide plate mold insert |
| WO2016187194A1 (en) * | 2015-05-18 | 2016-11-24 | Corning Incorporated | Glass articles comprising light extraction features and methods for making the same |
-
2019
- 2019-01-24 CN CN201910082875.3A patent/CN109683229B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338983A (en) * | 2010-07-14 | 2012-02-01 | 韩国科学技术院 | Pattern manufacturing method |
| CN201945708U (en) * | 2011-02-22 | 2011-08-24 | 苏州茂立光电科技有限公司 | Light guide plate, backlight module and display device of same |
| CN102862112A (en) * | 2012-07-19 | 2013-01-09 | 京东方科技集团股份有限公司 | Machining device for template of light guide plate and machining method thereof |
| CN103938230A (en) * | 2013-01-21 | 2014-07-23 | 鸿富锦精密工业（深圳）有限公司 | Manufacturing method for light guide plate mold insert |
| WO2016187194A1 (en) * | 2015-05-18 | 2016-11-24 | Corning Incorporated | Glass articles comprising light extraction features and methods for making the same |
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| Publication number | Publication date |
|---|---|
| CN109683229B (en) | 2021-04-02 |
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