CN107089003A - Light-conducting board mold, light guide plate and preparation method thereof - Google Patents
Light-conducting board mold, light guide plate and preparation method thereof Download PDFInfo
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- CN107089003A CN107089003A CN201710397429.2A CN201710397429A CN107089003A CN 107089003 A CN107089003 A CN 107089003A CN 201710397429 A CN201710397429 A CN 201710397429A CN 107089003 A CN107089003 A CN 107089003A
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- convex
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- height
- guide plate
- guiding points
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
-
- 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
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0075—Light guides, optical cables
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention provides a kind of light-conducting board mold, light guide plate and preparation method thereof, belongs to display field.Light-conducting board mold includes die ontology and several light guiding points stereotyped structures for being arranged on the die ontology, and the light guiding points stereotyped structure is shaped as concavo-convex concavo-concave convex-concave.Light guide plate includes plate body, the plate body includes an incidence surface, a reflecting surface intersected with the incidence surface, an exiting surface being oppositely arranged with the reflecting surface, one and the incidence surface anti-incidence surface being oppositely arranged and two sides being oppositely arranged, the incidence surface is set towards light source, be provided with several light guiding points on the reflecting surface, the light guiding points to be shaped as convex-concave convexo-convex concavo-convex.The present invention is shaped as concavo-convex concavo-concave convex-concave by set light guiding points stereotyped structure, so that light guiding points on the light guide plate prepared based on the light-conducting board mold to be shaped as convex-concave convexo-convex concavo-convex, that is the shape of light guiding points, which has, recessed has convex, relative to the light guiding points of convex portion are only included, optics can be increased and effectively utilize area.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of light-conducting board mold, light guide plate and preparation method thereof.
Background technology
Light guide plate is to use to have high reflectivity and the not material of extinction, in acryl/PC plate material bottom surface (reflecting surface) system
Obtained for upper light guiding points.When light is mapped to each light guiding points on light guide plate, reflected light can be toward all angles diffusion, with broken
The total reflection conduction of bad plane.By various densitys, light guiding points not of uniform size, light guide plate uniformly light-emitting can be made.On light guide plate
Shape, size of light guiding points etc. effectively utilize the optics for influenceing display device the size in area.
At present during light guiding points on light guide plate is prepared, generally using the light-conducting board mold of complete concave point, thus it can only make
The standby light guiding points that obtain are complete convex light guide plate.By putting into practice surface, light guiding points are complete convex light guide plate, optics effectively using area compared with
It is small.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of light-conducting board mold, light guide plate and preparation method thereof, its
The technical scheme of use is as follows：
A kind of light-conducting board mold, its several light guiding points sizing for including die ontology and being arranged on the die ontology
Structure, the light guiding points stereotyped structure is shaped as concavo-convex concavo-concave convex-concave.
Alternatively, the relation between the height H in convex region and the depth D of recessed area in the light guiding points stereotyped structure is met
0.2<H/D<0.8。
Alternatively, the light guiding points stereotyped structure is etched on the die ontology by laser ablation method.
A kind of light guide plate, it includes plate body, and the plate body includes an incidence surface, a reflection intersected with the incidence surface
Face, an exiting surface being oppositely arranged with the reflecting surface, an anti-incidence surface being oppositely arranged with the incidence surface and it is oppositely arranged
Two sides, the incidence surface sets towards light source, is provided with several light guiding points on the reflecting surface, the light guiding points
It is shaped as convex-concave convexo-convex concavo-convex.
Alternatively, in the convex-concave convexo-convex concaveconvex structure, when the height highest in the second convex region, the height in the 4th convex region is big
Height in the first convex region.
Alternatively, in the convex-concave convexo-convex concaveconvex structure, when the height highest in the 3rd convex region, the height in the first convex region is big
Height in the 4th convex region.
Alternatively, in the convex-concave convexo-convex concaveconvex structure, the relation between the depth V of recessed area and the height P in convex region is met
0.2<V/P<0.8。
A kind of preparation method of light guide plate, it comprises the following steps：
The light guiding points stereotyped structure of several concavo-convex concavo-concave convex-concave profiles is etched on die ontology using laser, is had
It is recessed to have convex light-conducting board mold；
The light-conducting board mold is attached on a disk roller of roll-to-roll hot press, light guide plate is positioned over roll-to-roll hot pressing
Between two disk rollers of machine, roll-to-roll hot press is heated and pressurizeed, by several light guiding points on light-conducting board mold
Stereotyped structure is transferred on the reflecting surface of light guide plate, obtains including the light guide plate of several light guiding points, the shape of the light guiding points
It is concavo-convex for convex-concave convexo-convex.
Alternatively, in the convex-concave convexo-convex concaveconvex structure, when the height highest in the second convex region, the height in the 4th convex region is big
Height in the first convex region；
When the height highest in the 3rd convex region, the height in the first convex region is more than the height in the 4th convex region.
Alternatively, in the convex-concave convexo-convex concaveconvex structure, the relation between the depth V of recessed area and the height P in convex region is met
0.2<V/P<0.8。
The beneficial effects of the invention are as follows：
The present invention is shaped as concavo-convex concavo-concave convex-concave by set light guiding points stereotyped structure so that based on the light-conducting board mold
The light guiding points on light guide plate prepared are shaped as that convex-concave convexo-convex is concavo-convex, i.e. the shapes of light guiding points have it is recessed have convex, relative to
Only include the light guiding points of convex portion, because on one small light guiding points of light guide plate, the present invention uses multi-level convex-concave structure,
Surface texture consecutive variations and light guide plate and the increase of air interface surface area can be made, thus can increase optics utilization rate, entered
And optics can be increased and effectively utilize area.
Brief description of the drawings
Fig. 1 is the structural representation of light-conducting board mold in the embodiment of the present invention 1.
Fig. 2 is the schematic shapes of light guiding points stereotyped structure in Fig. 1.
Fig. 3 is the structural representation of light guide plate in the embodiment of the present invention 2.
Fig. 4 is a kind of schematic diagram of light guiding points shape in the embodiment of the present invention 2.
Fig. 5 is another schematic diagram of light guiding points shape in the embodiment of the present invention 2.
Fig. 6 is the technical process schematic diagram in the embodiment of the present invention 3.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.
Embodiment 1
The present embodiment provides a kind of light-conducting board mold, as shown in figure 1, the light-conducting board mold includes die ontology 1 and set
In several light guiding points stereotyped structures 2 on die ontology, light guiding points stereotyped structure 2 is shaped as concavo-convex concavo-concave convex-concave.Wherein,
The shape of light guiding points stereotyped structure 2 is as shown in Figure 2.
Concavo-convex concavo-concave convex-concave is shaped as by set light guiding points stereotyped structure 2 so that subsequently based on the light-conducting board mold
The light guiding points on light guide plate prepared are shaped as that convex-concave convexo-convex is concavo-convex, i.e. the shapes of light guiding points have it is recessed have convex, relative to
Only include the light guiding points of convex portion, because on one small light guiding points of light guide plate, the present invention uses multi-level convex-concave structure,
Surface texture consecutive variations and light guide plate and the increase of air interface surface area can be made, thus can increase optics utilization rate, entered
And optics can be increased and effectively utilize area.
Wherein, the material of die ontology 1 includes but is not limited to be steel.
Alternatively, the relation between the height H in the convex region in light guiding points stereotyped structure and the depth D of recessed area meets 0.2<H/
D<0.8.Find, when the salient point on the surface of die ontology 1 is too high or may interfere with light guide plate during too deep pothole, cause in practice
The shape of light guiding points, which becomes XOR, on light guide plate makes light guide panel material residue in light-conducting board mold surface, so that forming optical effect not
Good and processing yield issues.According to experiment experience surface, as the height H in convex region in the light guiding points stereotyped structure and depth D of recessed area
Between relation meet 0.2<H/D<Be not in that optical effect is bad and processing yield issues when 0.8, thus can improve and lead
The processing yield of tabula rasa.
Alternatively, light guiding points stereotyped structure is etched on die ontology 1 by laser ablation method.According to laser processing technology
The upper-lower position of the parameter of technological adjustment laser, such as focus, the power output of laser, laser operation time, it can define and lead
The height and depth scale of sags and crests in luminous point stereotyped structure 2, so that the light of the light guide plate prepared based on light-conducting board mold
Learn effectively using area than larger.
Embodiment 2
The present embodiment provides a kind of light guide plate, including plate body, as shown in figure 3, plate body includes an incidence surface 10 (in Fig. 3
The left side), a reflecting surface 20 intersected with incidence surface 10 (bottom surface in Fig. 3), an exiting surface 30 being oppositely arranged with reflecting surface 20
(top surface in Fig. 3), one and the anti-incidence surface 40 (right side in Fig. 3) being oppositely arranged of incidence surface 10 and two sides being oppositely arranged
Face 50 (front and back in Fig. 3), incidence surface 10 is set towards light source, and several light guiding points are provided with reflecting surface 20.Such as
Fig. 4 or as shown in figure 5, light guiding points to be shaped as convex-concave convexo-convex concavo-convex.Wherein, light guiding points can be based in above-described embodiment 1
Light-conducting board mold is prepared.
In the present embodiment, convex-concave convexo-convex concaveconvex structure is shaped as by set light guiding points, relative to only including convex portion
Light guiding points, because on one small light guiding points of light guide plate, the present invention uses multi-level convex-concave structure, can make surface texture
Consecutive variations and light guide plate and the increase of air interface surface area, thus can increase optics utilization rate, and then light can be increased
Effectively utilize area.
Alternatively, as shown in figure 4, in convex-concave convexo-convex concaveconvex structure, when the height highest in the second convex region, the 4th convex region
Highly it is more than the height in the first convex region.The height relationships between each convex region are arranged such, after light guide plate machine-shaping, it can be ensured that
Its optical stability is relatively good.
Wherein, the first convex region to the 4th convex region is respectively A areas, D areas of C areas and the F areas in Fig. 4.With reference to Fig. 4, in this knot
Under structure, the height in F areas is more than the height in A areas.
Alternatively, as shown in figure 5, in convex-concave convexo-convex concaveconvex structure, when the height highest in the 3rd convex region, the first convex region
Highly it is more than the height in the 4th convex region.The height relationships between each convex region are arranged such, after light guide plate machine-shaping, it can be ensured that
Its optical stability is relatively good.
Wherein, the first convex region to the 4th convex region is respectively A ' areas, D ' areas of C ' areas and the F ' areas in Fig. 5.With reference to Fig. 5, at this
Plant under structure, the height in A ' areas is more than the height in F ' areas.
Alternatively, in convex-concave convexo-convex concaveconvex structure, the relation between the depth V of recessed area and the height P in convex region meets 0.2<
V/P<0.8.With reference to in embodiment 1, the relation between the height H in the convex region in light guiding points stereotyped structure and the depth D of recessed area
Explanation, according to experiment experience surface, when in convex-concave convexo-convex concaveconvex structure, the pass between the depth V of recessed area and the height P in convex region
System meets 0.2<V/P<When 0.8, be not in optical effect it is bad and processing yield issues, thus can improve light guide plate plus
Work yield.
Embodiment 3
The present embodiment provides a kind of preparation method of light guide plate, comprises the following steps：
Step 1, the light guiding points stereotyped structure of several concavo-convex concavo-concave convex-concave profiles is etched on die ontology using laser,
Obtain recessed having convex light-conducting board mold.
Wherein, the related content of light guiding points stereotyped structure has carried out that explanation is explained in detail in above-described embodiment 1, tool
Body can be found in the content in above-described embodiment 1, and here is omitted.
Step 2, light-conducting board mold is attached on a disk roller of roll-to-roll hot press, light guide plate is positioned over roll-to-roll heat
Between two disk rollers of press, roll-to-roll hot press is heated and pressurizeed, by several leaded lights on light-conducting board mold
Point stereotyped structure is transferred on the reflecting surface of light guide plate, obtains including the light guide plate of several light guiding points, wherein, the shape of light guiding points
Shape is that convex-concave convexo-convex is concavo-convex.
As shown in fig. 6, light-conducting board mold is attached on the disk roller on roll-to-roll hot press, light guide plate is positioned over roll-to-roll
Between two disk rollers of hot press.Wherein, the temperature heated to roll-to-roll hot press should reach turning for light guide plate sheet material
Move temperature.The gap between two disk rollers by adjusting roll-to-roll hot press, can adjust the pressure of roll-to-roll hot press.Close
In the degree of pressurization, the material of light guide plate sheet material is different, pressurizes of different sizes.
The light guide plate prepared by the preparation method of the present embodiment, can increase optics and effectively utilize area.
Wherein, the related content of light guide plate has carried out that explanation is explained in detail in above-described embodiment 2, for details, reference can be made to
Content in above-described embodiment 2, here is omitted.
Alternatively, in convex-concave convexo-convex concaveconvex structure, when the height highest in the second convex region, the height in the 4th convex region is more than the
The height in one convex region.When the height highest in the 3rd convex region, the height in the first convex region is more than the height in the 4th convex region.In the part
Appearance is explained explanation in above-described embodiment 2, for details, reference can be made to the content in above-described embodiment 2, here is omitted.
Alternatively, in convex-concave convexo-convex concaveconvex structure, the relation between the depth V of recessed area and the height P in convex region meets 0.2<
V/P<0.8.The contents of the section is explained explanation in above-described embodiment 2, for details, reference can be made to interior in above-described embodiment 2
Hold, here is omitted.
Reached by experiment, by setting the pass between the height H in convex region in light guiding points stereotyped structure and the depth D of recessed area
System meets 0.2<H/D<0.8, that is, set the relation between the depth V of recessed area and the height P in convex region of light guiding points to meet 0.2<V/P
<0.8, high efficiency optics and the balance of two factors of heat rolling process requirement can be reached.For example, when light guiding points stereotyped structure
At middle H=5 μm, D=10 μm, the hot pressing condition of roll-to-roll hot press, gap, the rotating speed of disk roller such as between temperature, two rollers are adjusted
Etc. light guide plate transcription rate 90% is reached, it may achieve V=4.5 μm of the light guiding points depth of light guide plate, light guiding points height P>4.5 μm convex
Recessed balanced structure, it is 100% now to define the briliancy that light efficiency shows.When H=2 μm in light guiding points stereotyped structure, D=10 μ
M, when now light guiding points quantity is 1.2 times, i.e., now the quantity of light guiding points is H=5 μm, D=10 μm in light guiding points stereotyped structure
Under the conditions of 1.2 times of light guiding points quantity when, briliancy is up to 99%.When H=8 μm in light guiding points stereotyped structure, D=10 μm, that is, lead
Luminous point quantity be in light guiding points stereotyped structure 0.8 times of light guiding points quantity under the conditions of H=5 μm, D=10 μm when, briliancy is reachable
101.5%.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, about the common of technical field
Technical staff, without departing from the spirit and scope of the present invention, can also make a variety of changes and modification, therefore all
Equivalent technical scheme falls within scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (10)
1. a kind of light-conducting board mold, it is characterised in that including die ontology and be arranged on the die ontology several lead
Luminous point stereotyped structure, the light guiding points stereotyped structure is shaped as concavo-convex concavo-concave convex-concave.
2. light-conducting board mold according to claim 1, it is characterised in that the height in the convex region in the light guiding points stereotyped structure
The relation spent between H and the depth D of recessed area meets 0.2<H/D<0.8.
3. light-conducting board mold according to claim 1 or 2, it is characterised in that the light guiding points stereotyped structure passes through laser
Etching method is etched on the die ontology.
4. a kind of light guide plate, it is characterised in that including plate body, the plate body intersects including an incidence surface, one with the incidence surface
Reflecting surface, an exiting surface being oppositely arranged with the reflecting surface, an anti-incidence surface being oppositely arranged with the incidence surface and phase
To two sides of setting, the incidence surface is set towards light source, and several light guiding points are provided with the reflecting surface, described to lead
Luminous point to be shaped as convex-concave convexo-convex concavo-convex.
5. light guide plate according to claim 4, it is characterised in that in the convex-concave convexo-convex concaveconvex structure, when the second convex region
Height highest when, the height in the 4th convex region is more than the height in the first convex region.
6. light guide plate according to claim 4, it is characterised in that in the convex-concave convexo-convex concaveconvex structure, when the 3rd convex region
Height highest when, the height in the first convex region is more than the height in the 4th convex region.
7. the light guide plate according to any claim in claim 4 to 7, it is characterised in that the convex-concave convexo-convex is concavo-convex
In structure, the relation between the depth V of recessed area and the height P in convex region meets 0.2<V/P<0.8.
8. a kind of preparation method of light guide plate, it is characterised in that comprise the following steps：
The light guiding points stereotyped structure of several concavo-convex concavo-concave convex-concave profiles is etched on die ontology using laser, has obtained recessed having
Convex light-conducting board mold；
The light-conducting board mold is attached on a disk roller of roll-to-roll hot press, light guide plate is positioned over roll-to-roll hot press
Between two disk rollers, roll-to-roll hot press is heated and pressurizeed, several light guiding points on light-conducting board mold are shaped
Structure transfer obtains including the light guide plate of several light guiding points, being shaped as the light guiding points is convex on the reflecting surface of light guide plate
Concavo-convex convex-concave is convex.
9. the preparation method of light guide plate according to claim 8, it is characterised in that in the convex-concave convexo-convex concaveconvex structure,
When the height highest in the second convex region, the height in the 4th convex region is more than the height in the first convex region；
When the height highest in the 3rd convex region, the height in the first convex region is more than the height in the 4th convex region.
10. the preparation method of light guide plate according to claim 8 or claim 9, it is characterised in that the convex-concave convexo-convex concaveconvex structure
In, the relation between the depth V of recessed area and the height P in convex region meets 0.2<V/P<0.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710397429.2A CN107089003A (en) | 2017-05-31 | 2017-05-31 | Light-conducting board mold, light guide plate and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710397429.2A CN107089003A (en) | 2017-05-31 | 2017-05-31 | Light-conducting board mold, light guide plate and preparation method thereof |
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| CN107089003A true CN107089003A (en) | 2017-08-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108107503A (en) * | 2017-12-27 | 2018-06-01 | 翰博高新材料(合肥)股份有限公司 | A kind of method for the site height and integral brightness for promoting hot-pressing light guide plate |
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| CN108107503A (en) * | 2017-12-27 | 2018-06-01 | 翰博高新材料(合肥)股份有限公司 | A kind of method for the site height and integral brightness for promoting hot-pressing light guide plate |
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Application publication date: 20170825 |