CN102879844A - Glass concave grating and preparation method thereof - Google Patents
Glass concave grating and preparation method thereof Download PDFInfo
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- CN102879844A CN102879844A CN2012103430750A CN201210343075A CN102879844A CN 102879844 A CN102879844 A CN 102879844A CN 2012103430750 A CN2012103430750 A CN 2012103430750A CN 201210343075 A CN201210343075 A CN 201210343075A CN 102879844 A CN102879844 A CN 102879844A
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Abstract
The invention discloses a glass concave grating and a preparation method thereof. The glass concave grating comprises a glass substrate, wherein strip-shaped grooves are regularly distributed on the surface of the glass substrate. The preparation method of the glass concave grating comprises the following steps of: (1) heating the glass substrate of which the surface is cleanly washed until the surface is softened; (2) rolling the heated glass substrate to form a cylindrical micro-concave array on the surface of the glass substrate; and (3) after the glass substrate is rolled, annealing the glass substrate until the temperature of the glass substrate reaches normal temperature, and thus obtaining the glass concave grating. Glass cylinder mirror concave gratings are manufactured by using a hot rolling method, and are easy to operate and low in production cost. The method is wide in production application range and can be used for processing the glass cylinder mirror concave gratings with various thicknesses. The manufactured glass cylinder mirror concave gratings are smooth in surface, high in accuracy and high in uniformity.
Description
Technical field
The present invention relates to a kind of glass concave grating and preparation method thereof.
Background technology
In free 3 D display technology, column mirror grating cooperates with liquid crystal display can fine realization bore hole 3D technology, so be widely used, what use at present is the single refraction column mirror grating mostly, this column mirror grating can only show the 3D picture, image blurring, unintelligible when showing the 2D picture, this has limited the popularization of bore hole 3D TV to a great extent.In order to realize to play simultaneously the bore hole 3D TV tech of 2D and 3D picture, people use the birefringence column mirror grating to realize this technology, mainly be to utilize the birefringence column mirror grating that forms behind the recessed column mirror grating perfusion liquid crystal to the birefringence of light, namely reflect during by the birefringence column mirror grating when extraordinary ray, and ordinary light does not reflect during by the birefringence column mirror grating.So cooperating the birefringence column mirror grating of liquid crystal preparation with recessed column mirror grating is the critical component that the 2D-3D free stereo display equipment switches 2D picture and 3D picture.
The manufacture craft of birefringence column mirror grating is to utilize first UV glue forming post mirror concave grating at PET film surface cure at present, then utilize the PET plate that this one side of concave grating is packaged, in four limits of original screen panel, three limits fill with the UV rubber seal, stay and do not encapsulate on one side as filling with the liquid crystal mouth, fill with liquid crystal then with UV rubber seal dress irrigation crystal mouth by the irrigation crystal mouth, i.e. preparation is finished.The birefringence column mirror grating yield rate that this technique is prepared is low, and poor stability mainly is that UV glue and liquid crystal molecule Long Term Contact can cause the unstable of liquid crystal molecule, even can react because post mirror concave grating is formed by the UV adhesive curing.These factors cause birefringence column mirror grating technology well not promoted in free stereo demonstration field now.
Summary of the invention
The object of the invention provides glass concave grating of a kind of yield rate height, good stability and preparation method thereof.
For achieving the above object the technical solution used in the present invention:
A kind of glass concave grating comprises glass substrate, it is characterized in that, described glass baseplate surface regular distribution has strip groove.
Described groove is arc groove.
Described groove closely is distributed in glass baseplate surface uniformly.
Preparation method for making described glass concave grating may further comprise the steps:
(1) it is softening that the glass substrate that surface clean is clean is heated to its surface;
The glass substrate that (2) will heat carries out roll-forming, makes glass baseplate surface form column nick array;
(3) glass substrate is annealed to normal temperature by behind the roll-forming, namely gets the glass concave grating.
The described heating-up temperature of step (1) is 600 ℃-800 ℃.
The described roll-forming of step (2) adopts top roll and lower roll extrusion modling, and the top roll surface is column dimpling array, and lower roll is ganoid stationary roll.
Pressure between described top roll and the lower roll is 100MPa-180MPa.
The material of described upper and lower roll is alloy steel.
Product glass concave grating of the present invention can well be used the birefringence column mirror grating, and then makes 2D-3D auto-stereoscopic display more stable, is conducive to popularization and the development of bore hole 3D TV; Process using hot-rolling transfer moulding method of the present invention is made glass column mirror concave grating, and simple to operate, production cost is low; Produce applied widelyly, can process the glass column mirror concave grating of various thickness, the surfacing of the glass column mirror concave grating that can make, precision are high, good uniformity.
Description of drawings
Fig. 1 is processes constitutional diagram of the present invention;
Fig. 2 is glass column mirror concave grating structural representation.
Embodiment
As shown in Figure 2, a kind of glass concave grating comprises glass substrate 2, and described glass substrate 2 surfaces closely are evenly distributed with strip arc groove 21.
Embodiment 1:
Preparation method for making described glass concave grating may further comprise the steps:
(1) it is softening that the glass substrate 2 that surface clean is clean is heated to its surface;
The glass substrate 2 that (2) will heat carries out roll-forming, makes glass substrate 2 surfaces form column nick array (being strip arc groove 21);
(3) glass substrate 2 is annealed to normal temperature by behind the roll-forming, namely gets glass column mirror concave grating;
The described heating-up temperature of step (1) is 600 ℃, and thickness of glass is 3mm.
The described roll-forming of step (2) adopts top roll 1 and lower roll 3 extrusion modlings, and top roll 1 surface is column dimpling array 11, and top roll 1 can be adjusted the position at above-below direction, can be fit to the processing of different-thickness glass, and lower roll 3 is ganoid stationary roll.Upper and lower roll 1,3 material are alloy steel, and the pressure parameter between the up-down rollers is 100MPa, and the width of groove is 1.635mm, and radius-of-curvature is 3.983mm.
Embodiment 2:
Preparation method for making described glass concave grating may further comprise the steps:
(1) it is softening that the glass substrate 2 that surface clean is clean is heated to its surface;
The glass substrate 2 that (2) will heat carries out roll-forming, makes glass substrate 2 surfaces form column nick array (being strip arc groove 21);
(3) glass substrate 2 is annealed to normal temperature by behind the roll-forming, namely gets glass column mirror concave grating;
The described heating-up temperature of step (1) is 700 ℃, and thickness of glass is 4mm.
The described roll-forming of step (2) adopts top roll 1 and lower roll 3 extrusion modlings, and top roll 1 surface is column dimpling array 11, and top roll 1 can be adjusted the position at above-below direction, can be fit to the processing of different-thickness glass, and lower roll 3 is ganoid stationary roll.Upper and lower roll 1,3 material are alloy steel, and the pressure parameter between the up-down rollers is 150MPa, and the width of groove is 1.635mm, and radius-of-curvature is 3.983mm.
Embodiment 3:
Preparation method for making described glass concave grating may further comprise the steps:
(1) it is softening that the glass substrate 2 that surface clean is clean is heated to its surface;
The glass substrate 2 that (2) will heat carries out roll-forming, makes glass substrate 2 surfaces form column nick array (being strip arc groove 21);
(3) glass substrate 2 is annealed to normal temperature by behind the roll-forming, namely gets glass column mirror concave grating;
The described heating-up temperature of step (1) is 800 ℃, and thickness of glass is 5mm.
The described roll-forming of step (2) adopts top roll 1 and lower roll 3 extrusion modlings, and top roll 1 surface is column dimpling array 11, and top roll 1 can be adjusted the position at above-below direction, can be fit to the processing of different-thickness glass, and lower roll 3 is ganoid stationary roll.Upper and lower roll 1,3 material are alloy steel, and the pressure parameter between the up-down rollers is 180MPa, and the width of groove is 1.635mm, and radius-of-curvature is 3.983mm.
The profile pattern of the glass column mirror grating that this technique is produced is good, precision is high, and good uniformity can be applied to the birefringence column mirror grating, and this birefringence column mirror grating is 2D-3D free stereo display equipment critical component.
Claims (8)
1. a glass concave grating comprises glass substrate, it is characterized in that, described glass baseplate surface regular distribution has strip groove.
2. glass concave grating as claimed in claim 1 is characterized in that, described groove is arc groove.
3. glass concave grating as claimed in claim 1 or 2 is characterized in that, described groove closely is distributed in glass baseplate surface uniformly.
4. be used for making the preparation method of the described glass concave grating of claim 1, it is characterized in that, may further comprise the steps:
(1) it is softening that the glass substrate that surface clean is clean is heated to its surface;
The glass substrate that (2) will heat carries out roll-forming, makes glass baseplate surface form column nick array;
(3) glass substrate is annealed to normal temperature by behind the roll-forming, namely gets the glass concave grating.
5. the preparation method of glass concave grating as claimed in claim 4 is characterized in that, the described heating-up temperature of step (1) is 600 ℃-800 ℃.
6. such as the preparation method of claim 4 or 5 described glass concave gratings, it is characterized in that the described roll-forming of step (2) adopts top roll and lower roll extrusion modling, the top roll surface is column dimpling array, and lower roll is ganoid stationary roll.
7. the preparation method of glass concave grating as claimed in claim 6 is characterized in that, the pressure between described top roll and the lower roll is 100MPa-180MPa.
8. the preparation method of glass concave grating as claimed in claim 7 is characterized in that, the material of described upper and lower roll is alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103430750A CN102879844A (en) | 2012-08-15 | 2012-09-17 | Glass concave grating and preparation method thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210290006 | 2012-08-15 | ||
| CN201210290006.8 | 2012-08-15 | ||
| CN2012103430750A CN102879844A (en) | 2012-08-15 | 2012-09-17 | Glass concave grating and preparation method thereof |
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| CN102879844A true CN102879844A (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220472184.8U Expired - Lifetime CN202794584U (en) | 2012-08-15 | 2012-09-17 | Glass concave grating |
| CN2012103430750A Pending CN102879844A (en) | 2012-08-15 | 2012-09-17 | Glass concave grating and preparation method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220472184.8U Expired - Lifetime CN202794584U (en) | 2012-08-15 | 2012-09-17 | Glass concave grating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111045125A (en) * | 2018-10-15 | 2020-04-21 | 青海荟源工贸有限公司 | Method for manufacturing large-size slit glass grating |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202794584U (en) * | 2012-08-15 | 2013-03-13 | 郑州恒昊玻璃技术有限公司 | Glass concave grating |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08313713A (en) * | 1995-05-17 | 1996-11-29 | Toppan Printing Co Ltd | Production of diffraction grating pattern |
| JP2003172639A (en) * | 2001-12-05 | 2003-06-20 | Mitsutoyo Corp | Production method for sine wave shape optical grating |
| CN101360689A (en) * | 2005-11-23 | 2009-02-04 | 法国圣戈班玻璃厂 | Method for surface structuring of a glass product, glass product with structured surface and uses |
| CN101614836A (en) * | 2009-07-08 | 2009-12-30 | 中国科学院上海光学精密机械研究所 | Quartz transmission polarization beam splitting grating |
| CN102213784A (en) * | 2011-06-02 | 2011-10-12 | 西安交通大学 | Manufacturing method for dynamically-stamped reflective optical grating |
| CN102320719A (en) * | 2011-09-29 | 2012-01-18 | 郑州恒昊玻璃技术有限公司 | Manufacturing method of glass grating |
| CN102621604A (en) * | 2012-04-13 | 2012-08-01 | 中国科学院光电技术研究所 | Preparation method of submicron-scale spherical or cylindrical micro-lens array |
| CN202794584U (en) * | 2012-08-15 | 2013-03-13 | 郑州恒昊玻璃技术有限公司 | Glass concave grating |
-
2012
- 2012-09-17 CN CN201220472184.8U patent/CN202794584U/en not_active Expired - Lifetime
- 2012-09-17 CN CN2012103430750A patent/CN102879844A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08313713A (en) * | 1995-05-17 | 1996-11-29 | Toppan Printing Co Ltd | Production of diffraction grating pattern |
| JP2003172639A (en) * | 2001-12-05 | 2003-06-20 | Mitsutoyo Corp | Production method for sine wave shape optical grating |
| CN101360689A (en) * | 2005-11-23 | 2009-02-04 | 法国圣戈班玻璃厂 | Method for surface structuring of a glass product, glass product with structured surface and uses |
| CN101614836A (en) * | 2009-07-08 | 2009-12-30 | 中国科学院上海光学精密机械研究所 | Quartz transmission polarization beam splitting grating |
| CN102213784A (en) * | 2011-06-02 | 2011-10-12 | 西安交通大学 | Manufacturing method for dynamically-stamped reflective optical grating |
| CN102320719A (en) * | 2011-09-29 | 2012-01-18 | 郑州恒昊玻璃技术有限公司 | Manufacturing method of glass grating |
| CN102621604A (en) * | 2012-04-13 | 2012-08-01 | 中国科学院光电技术研究所 | Preparation method of submicron-scale spherical or cylindrical micro-lens array |
| CN202794584U (en) * | 2012-08-15 | 2013-03-13 | 郑州恒昊玻璃技术有限公司 | Glass concave grating |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111045125A (en) * | 2018-10-15 | 2020-04-21 | 青海荟源工贸有限公司 | Method for manufacturing large-size slit glass grating |
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| CN202794584U (en) | 2013-03-13 |
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Application publication date: 20130116 |