CN114063206A - Front light plate with micro dot structure and manufacturing process thereof - Google Patents
Front light plate with micro dot structure and manufacturing process thereof Download PDFInfo
- Publication number
- CN114063206A CN114063206A CN202111237489.0A CN202111237489A CN114063206A CN 114063206 A CN114063206 A CN 114063206A CN 202111237489 A CN202111237489 A CN 202111237489A CN 114063206 A CN114063206 A CN 114063206A
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- China
- Prior art keywords
- dot structure
- front light
- photosensitive
- micro
- dots
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 239000000839 emulsion Substances 0.000 claims abstract description 20
- 239000011521 glass Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000003292 glue Substances 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 238000009713 electroplating Methods 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 229920002120 photoresistant polymer Polymers 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007731 hot pressing Methods 0.000 description 4
- VAYOSLLFUXYJDT-RDTXWAMCSA-N Lysergic acid diethylamide Chemical compound C1=CC(C=2[C@H](N(C)C[C@@H](C=2)C(=O)N(CC)CC)C2)=C3C2=CNC3=C1 VAYOSLLFUXYJDT-RDTXWAMCSA-N 0.000 description 3
- 206010070834 Sensitisation Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
Images
Classifications
-
- 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
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0215—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having a regular structure
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0005—Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor
Abstract
The invention discloses a manufacturing process of a front light plate with a micro dot structure, which comprises the following steps: s1, uniformly coating the photosensitive glue on the glass substrate; s2, adjusting the laser wavelength and the focus position of the laser source, and performing laser processing on the photosensitive adhesive to form an inwards concave mesh groove; s3, after the laser processing is finished, curing the photosensitive emulsion and separating the photosensitive emulsion from the glass substrate to obtain a photosensitive emulsion female die; s4, transferring convex dots on the intermediate carrier plate by the photosensitive resist female die through an electroplating process; and S5, transferring the dots on the intermediate carrier plate to the transparent substrate to form a dot structure. The invention also discloses a front light plate with the micro dot structure. Compared with the prior art, the diameter of the micro screen dots on the front light plate is as low as 5um, the front light plate is clear in display, and the C/R value is obviously improved.
Description
Technical Field
The invention belongs to the field of manufacturing of a front light plate, and particularly relates to a front light plate with a micro dot structure and a manufacturing process thereof.
Background
In the current front light industry, the front light plate is an important component of the front light module. The front light panel generally includes a substrate and a dot structure on a surface of the substrate. On the front light plate, the larger the size of the mesh point is, the more blurred the picture is; the smaller the dot size, the clearer the picture.
The dot processing technology on the front light plate comprises the following steps: hot pressing technology for crater-shaped dots, injection processing technology for circular dots, hot pressing technology for special-shaped dots, and the like. Most of the prior front light plate mesh point structures are formed by a hot-pressing processing technology, the diameter of a single mesh point is between 20 and 40 mu m, and due to the limitation of a hot-pressing processing technology steel plate mould, the processing of smaller mesh points can not be carried out, so that the definition of a front light plate picture is limited.
Disclosure of Invention
The invention aims to: the diameter of the micro dots on the front light plate is as low as 5um, the front light plate is clear in display, and the C/R value is obviously improved.
In order to achieve the above object, in one aspect, the present invention provides a front light panel with a micro dot structure, which includes a transparent substrate, a dot structure disposed on the transparent substrate, the dot structure including a plurality of dots arranged in an array, the dot structure being cylindrical.
As a further description of the above technical solution:
the diameter of the mesh point is 5um to 10 um.
As a further description of the above technical solution:
the height of the mesh point is 1um to 3 um.
On the other hand, the invention provides a manufacturing process of a front light plate with a micro dot structure, which comprises the following steps:
s1, uniformly coating the photosensitive glue on the glass substrate;
s2, adjusting the laser wavelength and the focus position of the laser source, and performing laser processing on the photosensitive adhesive to form an inwards concave mesh groove;
s3, after the laser processing is finished, curing the photosensitive emulsion and separating the photosensitive emulsion from the glass substrate to obtain a photosensitive emulsion female die;
s4, transferring convex dots on the intermediate carrier plate by the photosensitive resist female die through an electroplating process;
and S5, transferring the dots on the intermediate carrier plate to the transparent substrate to form a dot structure.
As a further description of the above technical solution:
in step S1, the glass substrate is horizontally placed before the photoresist is applied.
As a further description of the above technical solution:
in step S2, the mesh point groove has a cylindrical structure.
As a further description of the above technical solution:
in step S4, the intermediate carrier is a nickel plate.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. in the invention, photosensitive glue which is sensitive to laser light is selected, the photosensitive glue is uniformly coated on a horizontal glass substrate, and then laser processing of micro mesh points (mesh points with the diameter of less than 10 um) is carried out. During laser processing, laser wavelength and focus position emitted by a laser source are adjusted, and a concave dot groove is processed on the photosensitive adhesive, wherein the dot groove is cylindrical. After the laser processing is finished, curing the photosensitive emulsion and separating the photosensitive emulsion from the glass substrate to obtain a photosensitive emulsion female die, wherein the photosensitive emulsion female die is used for transferring convex dots on the intermediate support plate through an electroplating process, and the dots on the intermediate support plate are transferred to the transparent substrate to form a dot structure. The dot structure comprises a plurality of micro dots with the diameter of 5 um. The cylindrical micro mesh points on the front light plate effectively improve the display effect, the front light plate is clear in display, and the C/R value is obviously improved.
2. According to the invention, the mesh points processed by the laser are uniform in size, the cylindrical mesh points are stable in structure, and the display effect of the front light plate is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a front light plate with a micro-dot structure.
Fig. 2 is a schematic diagram of laser processing in a manufacturing process of a front light plate with a micro dot structure.
Fig. 3 is a schematic diagram of a transfer printing dot on an intermediate carrier in a manufacturing process of a front light plate with a micro dot structure.
FIG. 4 is a schematic diagram of a dot structure in a process for manufacturing a front light plate with a micro dot structure.
Illustration of the drawings:
1. a transparent substrate; 2. a mesh point; 3. a glass substrate; 4. a laser source; 5. a mesh point slot; 6. a photosensitive resist female die; 7. an intermediate carrier plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: on one hand, the invention provides a front light plate with a micro dot structure, which comprises a transparent substrate 1, wherein the dot structure is arranged on the transparent substrate 1 and comprises a plurality of dots 2 arranged in an array, and the dot structure 2 is cylindrical.
The diameter of the screen dot 2 is 5um to 10um, the height of the screen dot 2 is 1um to 3um, the diameter of the cylindrical screen dot 2 is 5um at the minimum, and the height range of the screen dot 2 is 1-3 um.
On the other hand, the invention provides a manufacturing process of a front light plate with a micro dot structure, which comprises the following steps:
s1, uniformly coating the photosensitive glue on the glass substrate 3;
s2, adjusting the laser wavelength and the focus position emitted by the laser source 4, and performing laser processing on the photosensitive adhesive to process concave mesh point grooves 5;
s3, after the laser processing is finished, curing the photosensitive emulsion and separating the photosensitive emulsion from the glass substrate 3 to obtain a photosensitive emulsion female die 6;
s4, transferring the convex screen dots 2 on the intermediate carrier plate 7 by the photosensitive resist female die 6 through an electroplating process;
and S5, transferring the dots 2 of the intermediate carrier plate 7 to the transparent substrate 1 to form a dot structure.
In step S1, before the photoresist is applied, the glass substrate 3 is horizontally placed so that the photoresist is uniformly applied, and the photoresist surface is on a horizontal plane during laser processing, and the subsequent photoresist master mold 6 has a flat surface, thereby ensuring the processing quality of the dot 2.
In step S2, the structure of the dot grooves 5 is cylindrical to form cylindrical dots 2.
In step S4, the intermediate carrier 7 is a nickel plate, so as to ensure the processing quality of the mesh point 2.
The working principle is as follows: firstly, selecting a photosensitive raw material, namely photosensitive glue, which is sensitive to laser sensitization, uniformly coating the photosensitive glue on a horizontal glass substrate, and then carrying out laser processing on micro mesh points (mesh points with the diameter of less than 10 um). During laser processing, laser wavelength and focus position emitted by a laser source are adjusted, and a concave dot groove is processed on the photosensitive adhesive, wherein the dot groove is cylindrical. After the laser processing is finished, curing the photosensitive emulsion and separating the photosensitive emulsion from the glass substrate to obtain a photosensitive emulsion female die, wherein the photosensitive emulsion female die is used for transferring convex dots on the intermediate support plate through an electroplating process, and the dots on the intermediate support plate are transferred to the transparent substrate to form a dot structure. The dot structure comprises a plurality of micro dots with the diameter of 5 um. The cylindrical micro mesh points on the front light plate effectively improve the display effect, the front light plate is clear in display, and the C/R value is obviously improved. The mesh points processed by the laser are uniform in size, the cylindrical mesh points are stable in structure, and the display effect of the front light plate is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The front light board with the micro dot structure is characterized by comprising a transparent substrate (1), wherein the dot structure is arranged on the transparent substrate (1) and comprises a plurality of dots (2) arranged in an array mode, and the dot structure (2) is cylindrical.
2. A front light panel with a micro-dot structure according to claim 1, characterized in that the diameter of the dots (2) is 5 to 10 um.
3. A front light panel with a micro-dot structure according to claim 1 or 2, characterized in that the height of the dots (2) is 1 to 3 um.
4. The process for manufacturing a front light plate with a micro-dot structure according to any one of claims 1 to 3, comprising the following steps:
s1, uniformly coating the photosensitive glue on the glass substrate (3);
s2, adjusting the laser wavelength and the focus position of the laser source (4), and performing laser processing on the photosensitive adhesive to process an inwards concave mesh groove (5);
s3, after the laser processing is finished, curing the photosensitive emulsion and separating the photosensitive emulsion from the glass substrate (3) to obtain a photosensitive emulsion female die (6);
s4, transferring the convex screen dots (2) on the intermediate carrier plate (7) by the photosensitive resist master die (6) through an electroplating process;
s5, transferring the screen dots (2) of the intermediate carrier plate (7) to a transparent substrate (1) to form a screen dot structure.
5. The process of claim 4, wherein the glass substrate (3) is horizontally placed before applying the photoresist in step S1.
6. The process for manufacturing a front light plate with a micro dot structure according to claim 4, wherein in the step S2, the structure of the dot grooves (5) is cylindrical.
7. The process of claim 4, wherein in step S4, the intermediate carrier (7) is a nickel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111237489.0A CN114063206A (en) | 2021-10-22 | 2021-10-22 | Front light plate with micro dot structure and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111237489.0A CN114063206A (en) | 2021-10-22 | 2021-10-22 | Front light plate with micro dot structure and manufacturing process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114063206A true CN114063206A (en) | 2022-02-18 |
Family
ID=80235312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111237489.0A Pending CN114063206A (en) | 2021-10-22 | 2021-10-22 | Front light plate with micro dot structure and manufacturing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114063206A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115407553A (en) * | 2022-08-16 | 2022-11-29 | 昆山锦林光电材料有限公司 | Glass diffusion printing dot structure applied to small LED backlight |
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2021
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| KR200343448Y1 (en) * | 2003-11-24 | 2004-03-02 | 정문정보 주식회사 | Light guide panel using by laser stamper and device for it |
| CN101398507A (en) * | 2007-09-29 | 2009-04-01 | 光宝科技股份有限公司 | Light conducting plate for forming laser processing pattern on light incidence plane and method for producing the same |
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