CN106646728A - Light guide plate and elliptical dot designing method and device thereof - Google Patents
Light guide plate and elliptical dot designing method and device thereof Download PDFInfo
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- CN106646728A CN106646728A CN201710173814.9A CN201710173814A CN106646728A CN 106646728 A CN106646728 A CN 106646728A CN 201710173814 A CN201710173814 A CN 201710173814A CN 106646728 A CN106646728 A CN 106646728A
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- oval
- site
- major axis
- light guide
- guide plate
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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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0012—Optical design, e.g. procedures, algorithms, optimisation routines
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention relates to the technical field of light guide plate design and discloses a light guide plate and an elliptical dot designing method and device of the laser-processing light guide plate. The elliptical dot designing method includes: building a two-dimension coordinate plane on the light guide plate; determining a light emitting area in the two-dimension coordinate plane; building a density distribution function of elliptical dots in the light emitting area; determining adjacent horizontal interval and adjacent vertical interval among the elliptical dots and short-long axial ratio of the elliptical dots; determining long axis of the elliptical dots according the the adjacent horizontal interval, the adjacent vertical interval, the short-long axial ratio and the density distribution function; converting the density distribution function and the long axis of the elliptical dots into a computer instruction to realize distribution of the elliptical dots. Length of the long axis of the elliptical dots acquired by calculation is closer to actual distribution of dots compared with conventional linear dots, so that light guide effect of the light guide plate is improved effectively.
Description
Technical field
The present invention relates to light guide plate design field, more particularly to a kind of oval net-pont design of Laser Processing light guide plate
Method, device and light guide plate.
Background technology
Light guide plate is a significant components in LED side entrance back modules, and network point distribution is whether excellent on light guide plate
Impact to backlight module optical property is very big, and then directly affects the quality of light guide effect.
Laser Processing light guide plate is directly in light guide plate base light guide plate surface to be gasified by laser high temperature action, shape
Into concave point (i.e. site) one by one.Traditional Laser Processing site uses the linear site of GOOLS Software for Design, however,
Because still there is larger difference linear site compared with the material object of site, the optical data that obtained using said method it is not accurate enough and
It is stable, so as to the light guide effect for causing light guide plate is deteriorated.
The content of the invention
A kind of oval screen dot design method of Laser Processing light guide plate, device and light guide plate are embodiments provided,
Aim to solve the problem that because optical data is not accurate enough and the problem of stable caused light guide plate light guide effect variation.
Embodiment of the present invention first aspect provides a kind of oval screen dot design method of light guide plate, including：
Two-dimensional coordinate plane is set up on light guide plate；
Light-emitting zone is determined in the two-dimensional coordinate plane, the light-emitting zone is the setting area of light guide plate ellipse site
Domain；
Set up density fonction of the oval site in the light-emitting zone；
Determine the short length of the adjacent level spacing, neighboring vertical spacing and the oval site between the oval site
Axle ratio；
According to the adjacent level spacing, the neighboring vertical spacing, the short major axis ratio and the Density Distribution letter
Number determines the major axis of the oval site；
The major axis of the density fonction and the oval site is changed into computer instruction, to realize the ellipse
The arrangement of site.
Embodiment of the present invention second aspect provides a kind of oval net-pont design device of light guide plate, including：Coordinate is set up
Module, for setting up two-dimensional coordinate plane on light guide plate；
Area determination module, for determining light-emitting zone in the two-dimensional coordinate plane, the light-emitting zone is leaded light
The setting area of plate ellipse site；
Density fonction sets up module, for setting up Density Distribution letter of the oval site in the light-emitting zone
Number；
Parameter determination module, for determine the adjacent level spacing between the oval site, neighboring vertical spacing and
The short major axis ratio of the oval site；
Major axis determining module, for according to the adjacent level spacing, the neighboring vertical spacing, the short major axis ratio with
And the density fonction determines the major axis of the oval site；
Conversion module, for the major axis of the density fonction and the oval site to be changed into computer instruction,
To realize the arrangement of the oval site.
The embodiment of the present invention third aspect provides a kind of light guide plate, and the site of the light guide plate is using present invention enforcement
Oval screen dot design method that example first aspect is provided is designed out.
In embodiments of the present invention, two-dimensional coordinate plane is set up on light guide plate；Determine in the two-dimensional coordinate plane
Light-emitting zone, the light-emitting zone is the setting area of light guide plate ellipse site；The oval site is set up in the luminous zone
Density fonction in domain；Determine adjacent level spacing between the oval site, neighboring vertical spacing and described ellipse
The short major axis ratio of cylinder point；According to the adjacent level spacing, the neighboring vertical spacing, the short major axis ratio and described close
Degree distribution function determines the major axis of the oval site；The major axis of the density fonction and the oval site is changed into
Computer instruction, to realize the arrangement of the oval site.The present invention is by the length phase of calculated oval site major axis
For traditional linear site is closer to the distribution of actual site；And the oval site of light guide plate is laser machined than line style net
, closer to the situation in kind of site, optical data is more accurately and stable because obtained from, effectively increases the leaded light of light guide plate for point
Effect.
Description of the drawings
Figure 1A is a kind of flow chart of oval screen dot design method one embodiment of light guide plate in the embodiment of the present invention；
Figure 1B is the flow chart of one embodiment of step 105 in Figure 1A；
Fig. 1 C are the schematic diagram that oval site major axis method is calculated in Figure 1B；
Fig. 2 is a kind of flow chart of second embodiment of oval screen dot design method of light guide plate in the embodiment of the present invention；
Fig. 3 is a kind of structure chart of oval net-pont design device one embodiment of light guide plate in the embodiment of the present invention；
Fig. 4 is a kind of structure chart of oval second embodiment of net-pont design device of light guide plate in the embodiment of the present invention；
Fig. 5 is a kind of distribution schematic diagram of oval site on light guide plate in the embodiment of the present invention.
Specific embodiment
A kind of oval screen dot design method of Laser Processing light guide plate, device and light guide plate are embodiments provided,
Aim to solve the problem that because optical data is not accurate enough and the problem of stable caused light guide plate light guide effect variation.
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described, it is clear that disclosed below to the technical scheme in the embodiment of the present invention
Embodiment be only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Figure 1A is referred to, one embodiment bag of the oval screen dot design method of a kind of light guide plate in the embodiment of the present invention
Include：
101st, two-dimensional coordinate plane is set up on light guide plate；
A two-dimensional coordinate plane is set up on light guide plate, the coordinate plane can cover whole light guide plate plane,
A part for light guide plate plane can be only covered, the origin of coordinates position of the coordinate plane can arbitrarily be arranged.
102nd, light-emitting zone is determined in the two-dimensional coordinate plane, the light-emitting zone is setting for light guide plate ellipse site
Put region；
After having set up two-dimensional coordinate plane, light-emitting zone is determined in the two-dimensional coordinate plane, the light-emitting zone is
The setting area of light guide plate ellipse site.The size of the light-emitting zone can include whole light guide plate plane, or lead
A part for tabula rasa plane.The shape of the light-emitting zone can be arbitrary geometrical rule figure, or arbitrary non-
The figure of rule.
103rd, density fonction of the oval site in the light-emitting zone is set up；
After determining light-emitting zone, density fonction of the oval site in the light-emitting zone is set up.By
It is not uniformly to arrange in the light-emitting zone in the oval site, therefore the Density Distribution letter of correlation can be set up
Number, and then determine the oval site in the concrete Density Distribution in the light-emitting zone.Can be in the whole luminous zone
Same density fonction is set up in domain, it is also possible to which the light-emitting zone is divided into multiple different regions, for each or
The different region in part is respectively provided with different density fonctions.
Further, the general expression of the density fonction can be：
D (y)=ay6+by5+cy4+dy3+ey2+fy+g；
Wherein, a, b, c, d, e, f and g are constant, and y is the ordinate of orthogonal axes with light guide plate geometric center as the origin of coordinates.
Above-mentioned density fonction is the function of ordinate of orthogonal axes y；And constant a, b, c, d, e, f and g are in Function Fitting
Numerical value, without special implication, can be obtained through test of many times simulation by lighttools softwares in actual test.
By taking the radium-shine light guide plate mesh point in the mono- long side of 19.5 cun of 2T as an example, in order to determine the value of constant a, b, c, d, e, f and g, in advance
If the number of ordinate of orthogonal axes can be 21, obtain each longitudinal axis through test of many times simulation using lighttools softwares and sit
Target dot density Distribution Value.It is less than normal in the dot density value of incident side (i.e. light guide plate bottom), and with jet nit point and light guide plate
The increase of distance from bottom, dot density gradually increases, and when close light guide plate top, dot density is again slow to be declined, final logical
Crossing the density fonction of the light guide plate mesh point that curve matching is determined can be：
D (y)=2.63684272785149E-07*y6+1.27184740404828E-06*y5-
0.0000673515453676274*y4-0.000551832381190162*y3+0.00287276983521168*y2+
0.0609192857403913*y+0.390989526439157。
104th, adjacent level spacing between the oval site, neighboring vertical spacing and the oval site are determined
Short major axis ratio；
In order to determine the major axis of the oval site, need first to determine adjacent level spacing between the oval site,
The short major axis of neighboring vertical spacing and the oval site than etc. several parameters.The adjacent level spacing refers to adjacent same
The spacing of the geometric center (x-axis direction) in the horizontal direction of row's site (ordinate of orthogonal axes y is identical), the neighboring vertical spacing refers to
The spacing of the geometric center of adjacent same row site (ordinate of orthogonal axes x is identical) (y-axis direction) in vertical direction, the short length
Axle is than referring to the ratio between oval site short axle and major axis, the adjacent level spacing, the neighboring vertical spacing for finally determining
And the short major axis is constant than all.
105th, according to the adjacent level spacing, the neighboring vertical spacing, the short major axis ratio and the density point
Cloth function determines the major axis of the oval site；
It is determined that the adjacent level spacing, neighboring vertical spacing and the oval site between the oval site it is short
After major axis ratio, it is possible to according to the adjacent level spacing, the neighboring vertical spacing, the short major axis ratio and described close
Degree distribution function determines the major axis of the oval site.
Further, as shown in Figure 1B, step 105 specifically can include：
1051st, the density fonction and the oval site major axis, the oval site short axle, described adjacent are built
First relational expression D (y) of level interval and the neighboring vertical spacing=π * A*B/Px*Py；
1052nd, the short major axis is built than the second relational expression C=B/A；
1053rd, the major axis of the oval site is determined according to first relational expression and second relational expression.
Wherein, A represents the major axis of the oval site, and B represents the short axle of the oval site, and C represents the short major axis
Than D (y) represents the density fonction, and Px represents the adjacent level spacing, and Py represents the neighboring vertical spacing, π tables
Show pi.
Construction basis reference picture 1C of first relational expression, 4 in Fig. 1 C ellipse represents adjacent 4 ellipse net
Point, by the center of described 4 oval sites a rhombus is connected to form, and dot density is the gross area of single ellipse divided by rib
The area of shape.The computing formula of the single oval gross area is π * A*B, and the area of the prismatic is Px*Py, therefore can be true
Fixed first relational expression is D (y)=π * A*B/Px*Py.
Second relational expression is directly obtained according to the definition of oval short major axis ratio, can be released by second relational expression
Relational expression B=AC, relational expression B=AC is substituted into first relational expression can obtain D (y)=π * A2* C/Px*Py, be through conversion
Can determine that the major axis of the oval site
Because Px, Py, π and C are the constants that set, and D (y) is the function of ordinate of orthogonal axes y, therefore the oval net
The major axis A of point is also the function of ordinate of orthogonal axes y.
106th, the major axis of the density fonction and the oval site is changed into computer instruction, it is described to realize
The arrangement of oval site.
It is determined that after the major axis of the density fonction and the oval site, converting them to computer and referring to
Order, to realize the arrangement of the oval site.Specifically, it is possible to use the VBA developing instruments of object-oriented convert them
Into computer instruction.
In embodiments of the present invention, two-dimensional coordinate plane is set up on light guide plate；Determine in the two-dimensional coordinate plane
Light-emitting zone, the light-emitting zone is the setting area of light guide plate ellipse site；The oval site is set up in the luminous zone
Density fonction in domain；Determine adjacent level spacing between the oval site, neighboring vertical spacing and described ellipse
The short major axis ratio of cylinder point；According to the adjacent level spacing, the neighboring vertical spacing, the short major axis ratio and described close
Degree distribution function determines the major axis of the oval site；The major axis of the density fonction and the oval site is changed into
Computer instruction, to realize the arrangement of the oval site.The present invention is by the length phase of calculated oval site major axis
For traditional linear site is closer to the distribution of actual site；And the oval site of light guide plate is laser machined than line style net
, closer to the situation in kind of site, optical data is more accurately and stable because obtained from, effectively increases the leaded light of light guide plate for point
Effect.
Fig. 2 is referred to, second embodiment bag of the oval screen dot design method of a kind of light guide plate in the embodiment of the present invention
Include：
201st, two-dimensional coordinate plane is set up on light guide plate；
Step 201 is identical with step 101, refer to the related description of step 101.
202nd, light-emitting zone is determined in the two-dimensional coordinate plane, the light-emitting zone is setting for light guide plate ellipse site
Put region；
Step 202 is identical with step 102, refer to the related description of step 102.
203rd, density fonction of the oval site in the light-emitting zone is set up；
Step 203 is identical with step 103, refer to the related description of step 103.
204th, the correction function of the density fonction is set up；
After the density fonction is set up, in order to the light guide plate mesh point for solving laser dotting would generally go out in distance light side
Existing bright border phenomenon, can set up the correction function of the density fonction, for correcting to the density fonction
To reduce edge site, and then the reflection of reduction light, mitigate bright border phenomenon.
205th, the density fonction is corrected according to the correction function；
After the correction function for setting up the density fonction, according to the correction function to the Density Distribution letter
Number is corrected.The amendment to refer to and make correcting process to original density fonction by certain rule, finally corrected
Density fonction afterwards.
Further, step 204 specifically can include：
First parameter value M and the second parameter value N are set；
The correction function of the density fonction is set up according to the first parameter value M and the second parameter value N；
The general expression of the correction function can be：
F (y)=h ((y-M)/N)6+i((y-M)/N)5+j((y-M)/N)4+k((y-M)/N)3+l((y-M)/N)2+m((y-
M)/N)+n；Wherein, h, i, j, k, l, m and n are constant, and y is that the longitudinal axis with the geometric center of light guide plate as the origin of coordinates is sat
Mark；
Above-mentioned correction function F (y) is the function of ordinate of orthogonal axes y；And constant h, i, j, k, l, m and n are in Function Fitting
Numerical value, without special implication, can be obtained through test of many times simulation by lighttools softwares in actual test.
Step 205 specifically can include：
Judge the value of the ordinate of orthogonal axes whether more than the first parameter value M；
If the value of the ordinate of orthogonal axes is more than the first parameter value M, by the density fonction and the amendment
Function does product calculation, obtains revised density fonction.
After correction function F (y) is set up, whether value y of the ordinate of orthogonal axes is judged more than the first parameter value M, if y
Then make amendment D (y)=D (y) * F (y) more than M, do not correct if y is less than or equal to M.
By taking the mono- long side light guide plate of 19.5 cun of 2T as an example, repaiied using following correction function F (y) pair distribution function D (y)
Just, reducing the radius of distance light side site：
F (y)=9.48311464412631E-8* ((y-M)/N)6-3.11110435870132E-6*((y-M)/M)5+
0.000017651771064942*((y-M)/N)4+0.0000884810413500359*((y-M)/N)3-
0.00149454514959077*((y-M)/N)2+0.00304266703915723*(y-M)/N+1.00183400352873；
The width of 19.5 cun of 2T rectangular light guide plates is 236mm, and y is the longitudinal axis with the geometric center of light guide plate as the origin of coordinates
Coordinate, therefore the span of y is -118 to 118.
As N=1, M values can be set as 98, coordinate y values are more than the different degrees of radius for reducing script of M,
The density of smallest point (y=118) is reduced into original 0.11 times.If M values are set into 100, the density of smallest point (y=118) will
It is reduced into original 0.29 times.
As N=1/2, M values can be set as 108, different degrees of more than M of coordinate y values reduces the half of script
Footpath, the density of smallest point (y=118) is reduced into original 0.11 times.If M values are set into 110, the density of smallest point (y=118)
It is reduced into original 0.29 times.
It can be seen that, rationally arrange the numerical value of the first parameter value M and the second parameter value N can be adjusted flexibly edge site density it is big
It is little, by reducing edge site to reduce the reflection of light, mitigate bright border phenomenon.In addition, the embodiment of the present invention adopts parabola side
Method eliminates bright border, and both can be adjusted flexibly will eliminate the site row and radius of bright border, and can also avoid that lofty change causes is bright
Concealed wire replaces.
206th, adjacent level spacing between the oval site, neighboring vertical spacing and the oval site are determined
Short major axis ratio；
Step 206 is identical with step 104, refer to the related description of step 104.
207th, according to the adjacent level spacing, the neighboring vertical spacing, the short major axis ratio and the density point
Cloth function determines the major axis of the oval site；
It is through the amendment letter that unique difference of step 207 and step 105 is the density fonction in step 207
Number is corrected, and the determination method of its major axis refer to the related description of step 105.
208th, the major axis of the density fonction and the oval site is changed into computer instruction, it is described to realize
The arrangement of oval site.
Step 208 is identical with step 106, refer to the related description of step 106.
In embodiments of the present invention, two-dimensional coordinate plane is set up on light guide plate；Determine in the two-dimensional coordinate plane
Light-emitting zone, the light-emitting zone is the setting area of light guide plate ellipse site；The oval site is set up in the luminous zone
Density fonction in domain；Set up the correction function of the density fonction；According to the correction function to the density
Distribution function is corrected；Determine adjacent level spacing between the oval site, neighboring vertical spacing and the oval net
The short major axis ratio of point；According to the adjacent level spacing, the neighboring vertical spacing, the short major axis ratio and the density point
Cloth function determines the major axis of the oval site；The major axis of the density fonction and the oval site is changed into calculating
Machine is instructed, to realize the arrangement of the oval site.The present invention by the length of calculated oval site major axis relative to
Distribution of traditional linear site closer to actual site；And laser machine the oval site of light guide plate than line style site more
The situation in kind of close site, optical data is more accurately and stable because obtained from, effectively increases the light guide effect of light guide plate；
In addition, correcting to the density fonction by correction function, bright border phenomenon is significantly reduced.
A kind of oval screen dot design method of Laser Processing light guide plate is essentially described above, a kind of laser will be added below
The oval net-pont design device of work light guide plate is described in detail.
Fig. 3 is referred to, first of a kind of oval net-pont design device of Laser Processing light guide plate in the embodiment of the present invention
Embodiment includes：
Coordinate sets up module 301, for setting up two-dimensional coordinate plane on light guide plate；
Area determination module 302, for determining light-emitting zone in the two-dimensional coordinate plane, the light-emitting zone is to lead
The setting area of tabula rasa ellipse site；
Density fonction sets up module 303, for setting up density of the oval site in the light-emitting zone point
Cloth function；
Parameter determination module 304, for determine the adjacent level spacing between the oval site, neighboring vertical spacing with
And the short major axis ratio of the oval site；
Major axis determining module 305, for according to the adjacent level spacing, the neighboring vertical spacing, the short major axis
Than and the density fonction determine the major axis of the oval site；
Conversion module 306, refers to for the major axis of the density fonction and the oval site to be changed into computer
Order, to realize the arrangement of the oval site.
Further, the density fonction set up the general expression of density fonction of the foundation of module 303 can
Think：
D (y)=ay6+by5+cy4+dy3+ey2+fy+g；
Wherein, a, b, c, d, e, f and g are constant, and y is the ordinate of orthogonal axes with light guide plate center as the origin of coordinates.
Further, the major axis determining module 305 specifically can include：
First construction unit 3051, for building the density fonction with the oval site major axis, the ellipse
First relational expression D (y) of site short axle, the adjacent level spacing and the neighboring vertical spacing=π * A*B/Px*Py；
Second construction unit 3052, for building the short major axis than the second relational expression C=B/A；
Major axis determining unit 3053, for determining the oval net according to first relational expression and second relational expression
The major axis of point；
Wherein, A represents the major axis of the oval site, and B represents the short axle of the oval site, and C represents the short major axis
Than D (y) represents the density fonction, and Px represents the adjacent level spacing, and Py represents the neighboring vertical spacing, π tables
Show pi.
Fig. 4 is referred to, second embodiment bag of the oval net-pont design device of a kind of light guide plate in the embodiment of the present invention
Include：
Coordinate sets up module 401, for setting up two-dimensional coordinate plane on light guide plate；
Area determination module 402, for determining light-emitting zone in the two-dimensional coordinate plane, the light-emitting zone is to lead
The setting area of tabula rasa ellipse site；
Density fonction sets up module 403, for setting up density of the oval site in the light-emitting zone point
Cloth function；
Correction function sets up module 404, for setting up the correction function of the density fonction；
Function correcting module 405, for being corrected to the density fonction according to the correction function；
Parameter determination module 406, for determine the adjacent level spacing between the oval site, neighboring vertical spacing with
And the short major axis ratio of the oval site；
Major axis determining module 407, for according to the adjacent level spacing, the neighboring vertical spacing, the short major axis
Than and the density fonction determine the major axis of the oval site；
Conversion module 408, refers to for the major axis of the density fonction and the oval site to be changed into computer
Order, to realize the arrangement of the oval site.
Further, the correction function is set up module 404 and specifically can be included：
Parameter set unit 4041, for arranging the first parameter value M and the second parameter value N；
Correction function sets up unit 4042, for setting up the density according to the first parameter value M and the second parameter value N
The correction function of distribution function；
The general expression of the correction function can be：
F (y)=h ((y-M)/N)6+i((y-M)/N)5+j((y-M)/N)4+k((y-M)/N)3+l((y-M)/N)2+m((y-
M)/N)+n；
Wherein, h, i, j, k, l, m and n are constant, and y is that the longitudinal axis with the geometric center of light guide plate as the origin of coordinates is sat
Mark；
The function correcting module 405 specifically can include：
Judging unit 4051, for judging the value of the ordinate of orthogonal axes whether more than the first parameter value M；
Amending unit 4052, if the value for the ordinate of orthogonal axes is more than the first parameter value M, by the density point
Cloth function does product calculation with the correction function, obtains revised density fonction.
The embodiment of the present invention additionally provides a kind of light guide plate, and the site of the light guide plate is using as described in Figure 1A or Fig. 2
Oval screen dot design method it is designed out, Fig. 5 is the distribution schematic diagram of oval site on the light guide plate.
Those skilled in the art can be understood that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be described here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematic, for example, the unit
Divide, only a kind of division of logic function can have other dividing mode, such as multiple units or component when actually realizing
Can with reference to or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or
The coupling each other for discussing or direct-coupling or communication connection can be the indirect couplings by some interfaces, device or unit
Close or communicate to connect, can be electrical, mechanical or other forms.
The unit as separating component explanation can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can according to the actual needs be selected to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit both can be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or used
When, during a computer read/write memory medium can be stored in.Based on such understanding, technical scheme is substantially
The part for contributing to prior art in other words or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment methods described of the invention
Portion or part steps.And aforesaid storage medium includes：USB flash disk, portable hard drive, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
The above, above example only to illustrate technical scheme, rather than a limitation；Although with reference to front
State embodiment to be described in detail the present invention, it will be understood by those within the art that：It still can be to front
State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic；And these
Modification is replaced, and does not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (10)
1. the oval screen dot design method of a kind of light guide plate, it is characterised in that include：
Two-dimensional coordinate plane is set up on light guide plate；
Light-emitting zone is determined in the two-dimensional coordinate plane, the light-emitting zone is the setting area of light guide plate ellipse site；
Set up density fonction of the oval site in the light-emitting zone；
Determine the short major axis of the adjacent level spacing, neighboring vertical spacing and the oval site between the oval site
Than；
It is true according to the adjacent level spacing, the neighboring vertical spacing, the short major axis ratio and the density fonction
The major axis of the fixed oval site；
The major axis of the density fonction and the oval site is changed into computer instruction, to realize the oval site
Arrangement.
2. oval screen dot design method according to claim 1, it is characterised in that described according between the adjacent level
Away from, the neighboring vertical spacing, the short major axis ratio and the density fonction determine the major axis tool of the oval site
Body includes：
The density fonction is built with the oval site major axis, the oval site short axle, the adjacent level spacing
With the first relational expression D (the y)=π * A*B/Px*Py of the neighboring vertical spacing；
The short major axis is built than the second relational expression C=B/A；
The major axis of the oval site is determined according to first relational expression and second relational expression；
Wherein, A represents the major axis of the oval site, and B represents the short axle of the oval site, and C represents the short major axis ratio, D
Y () represents the density fonction, Px represents the adjacent level spacing, and Py represents the neighboring vertical spacing, and π represents round
Frequency.
3. oval screen dot design method according to claim 1, it is characterised in that the general purpose table of the density fonction
It is up to formula：
D (y)=ay6+by5+cy4+dy3+ey2+fy+g；
Wherein, a, b, c, d, e, f and g are constant, and y is the ordinate of orthogonal axes with light guide plate center as the origin of coordinates.
4. oval screen dot design method according to any one of claim 1 to 3, it is characterised in that it is determined that described ellipse
Before the major axis of cylinder point, also include：
Set up the correction function of the density fonction；
The density fonction is corrected according to the correction function.
5. oval screen dot design method according to claim 4, it is characterised in that described to set up the density fonction
Correction function specifically include：
First parameter value M and the second parameter value N are set；
The correction function of the density fonction is set up according to the first parameter value M and the second parameter value N；
The general expression of the correction function is：
F (y)=h ((y-M)/N)6+i((y-M)/N)5+j((y-M)/N)4+k((y-M)/N)3+l((y-M)/N)2+m((y-M)/
N)+n；
Wherein, h, i, j, k, l, m and n are constant, and y is the ordinate of orthogonal axes with the geometric center of light guide plate as the origin of coordinates；
It is described the density fonction is specifically included as amendment according to the correction function：
Judge the value of the ordinate of orthogonal axes whether more than the first parameter value M；
If the value of the ordinate of orthogonal axes is more than the first parameter value M, by the density fonction and the correction function
Product calculation is done, revised density fonction is obtained.
6. the oval net-pont design device of a kind of light guide plate, it is characterised in that include：
Coordinate sets up module, for setting up two-dimensional coordinate plane on light guide plate；
Area determination module, for determining light-emitting zone in the two-dimensional coordinate plane, the light-emitting zone is that light guide plate is ellipse
The setting area of cylinder point；
Density fonction sets up module, for setting up density fonction of the oval site in the light-emitting zone；
Parameter determination module, for determining the adjacent level spacing between the oval site, neighboring vertical spacing and described
The short major axis ratio of oval site；
Major axis determining module, for according to the adjacent level spacing, the neighboring vertical spacing, the short major axis ratio and institute
State the major axis that density fonction determines the oval site；
Conversion module, for the major axis of the density fonction and the oval site to be changed into computer instruction, with reality
The arrangement of the existing oval site.
7. oval net-pont design device according to claim 6, it is characterised in that the major axis determining module is specifically wrapped
Include：
First construction unit, for build the density fonction and the oval site major axis, the oval site short axle,
First relational expression D (y) of the adjacent level spacing and the neighboring vertical spacing=π * A*B/Px*Py；
Second construction unit, for building the short major axis than the second relational expression C=B/A；
Major axis determining unit, for determining the length of the oval site according to first relational expression and second relational expression
Axle；
Wherein, A represents the major axis of the oval site, and B represents the short axle of the oval site, and C represents the short major axis ratio, D
Y () represents the density fonction, Px represents the adjacent level spacing, and Py represents the neighboring vertical spacing, and π represents round
Frequency.
8. the oval net-pont design device according to claim 6 or 7, it is characterised in that also include：
Correction function sets up module, for setting up the correction function of the density fonction；
Function correcting module, for being corrected to the density fonction according to the correction function.
9. oval net-pont design device according to claim 8, it is characterised in that it is concrete that the correction function sets up module
Including：
Parameter set unit, for arranging the first parameter value M and the second parameter value N；
Correction function sets up unit, for setting up the density fonction according to the first parameter value M and the second parameter value N
Correction function；
The general expression of the correction function is：
F (y)=h ((y-M)/N)6+i((y-M)/N)5+j((y-M)/N)4+k((y-M)/N)3+l((y-M)/N)2+m((y-M)/
N)+n；
Wherein, h, i, j, k, l, m and n are constant, and y is the ordinate of orthogonal axes with the geometric center of light guide plate as the origin of coordinates；
The function correcting module is specifically included：
Judging unit, for judging the value of the ordinate of orthogonal axes whether more than the first parameter value M；
Amending unit, if for the ordinate of orthogonal axes value be more than the first parameter value M, by the density fonction with
The correction function does product calculation, obtains revised density fonction.
10. a kind of light guide plate, it is characterised in that the site of the light guide plate is using as any one of claim 1 to 5
Oval screen dot design method it is designed out.
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| CN107272108A (en) * | 2017-05-11 | 2017-10-20 | 广东工业大学 | A kind of one-dimensional microstructure design method of light guide plate lower surface |
| CN110703431A (en) * | 2019-09-11 | 2020-01-17 | 苏州天禄光科技股份有限公司 | Optimization method for microsphere structure of side-light type polygonal light guide plate |
| CN111624695A (en) * | 2019-11-12 | 2020-09-04 | 合肥泰沃达智能装备有限公司 | Transparent glass light guide plate and manufacturing method thereof |
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| CN110703431A (en) * | 2019-09-11 | 2020-01-17 | 苏州天禄光科技股份有限公司 | Optimization method for microsphere structure of side-light type polygonal light guide plate |
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