CN103698938A - Network distribution method and network generation device - Google Patents
Network distribution method and network generation device Download PDFInfo
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- CN103698938A CN103698938A CN201310698028.2A CN201310698028A CN103698938A CN 103698938 A CN103698938 A CN 103698938A CN 201310698028 A CN201310698028 A CN 201310698028A CN 103698938 A CN103698938 A CN 103698938A
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Abstract
An embodiment of the invention discloses a network distribution method and a network generation device and relates to the technical field of displaying. Network distribution can be conducted simply and quickly. The network distribution method includes acquiring light distribution data of a light source, conducting linear filtering calculation on the light distribution data to obtain a light distribution function, acquiring a network density distribution function according to the light distribution function, acquiring the network density distribution data according to the network density distribution function and generating network distribution according to the network density distribution data. A network generation device is further provided.
Description
Technical field
The present invention relates to display technique field, relate in particular to a kind of network point distribution method and generating apparatus.
Background technology
Down straight aphototropism mode set comprises the structures such as light source, optical thin film, wherein conventionally selects pointolite or line source as light source.The light distribution of pointolite or line source is inhomogeneous, can produce harmful effect to the display effect of liquid crystal display.In order reaching, better to go out light effect, can between light source and optical thin film, diffuser plate to be set, between light source and diffuser plate, need the larger light mixing distance in interval, to make pointolite or line source be converted into the uniform area source of bright dipping.But larger light mixing distance has increased the thickness of down straight aphototropism mode set to a certain extent, be unfavorable for the practical application of down straight aphototropism mode set.
Therefore, under less light mixing distance, obtain light more uniformly, carry out net-point printing on the diffuser plate of being everlasting, the ink printing that is about to have scattering property forms site on diffuser plate.There is the diffuser plate of site can realize the adjusting to pointolite or line source light distribution.According to the light distribution data of light source and the attribute of ink, make the site on diffuser plate there is rational dot density, can make pointolite or line source become the uniform area source of bright dipping.
In realizing process of the present invention, inventor finds, in prior art, to the method for designing of dot density, be: light emitting anger, light mixing distance, the transmitance of ink, a plurality of parameters such as density function of ink of first determining light source, then by analog computation, go out the intensity distribution function of light source, and then derive dot density distribution function.Said method algorithm relative complex is consuming time longer.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of network point distribution method and generating apparatus, can carry out quickly and easily network point distribution.
For solving the problems of the technologies described above, the first aspect of the embodiment of the present invention provides a kind of network point distribution method, and this network point distribution method comprises the following steps:
Obtain the light distribution data of light source;
Described light distribution data are carried out to linear filtering calculating, obtain intensity distribution function;
According to described intensity distribution function, obtain dot density distribution function;
According to described dot density distribution function, obtain dot density distributed data, according to described dot density distributed data, generate the distribution of site.
Described light distribution data comprise A * B data, and A represents line number, and B represents columns, and A, B are arbitrary non-zero natural number independently of one another.
Described light distribution data are carried out to linear filtering calculating, and the step that obtains intensity distribution function comprises:
F (x, y) is any data in described light distribution data, wherein, x=0,1,2 ... or A-1, y=0,1,2 ... or B-1;
By m * n dimension matrix filter w (s, t), described light distribution data are carried out to linear filtering calculating, obtain intensity distribution function
wherein m is more than or equal to 3 and be less than or equal to arbitrary integer of 5, and n is more than or equal to 3 and be less than or equal to arbitrary integer of 5, a=(m-1)/2, and b=(n-1)/2, s, t are integer, be more than or equal to-a of s and be less than or equal to a, be more than or equal to-b of t and be less than or equal to b;
Or,
Described light distribution data are compressed, obtained compression light intensity distributed data, wherein, described compression light intensity distributed data comprises M * N data, and h (x, y) is any data in described compression light intensity distributed data, wherein, M represents line number, and N represents columns, and M, N are arbitrary non-zero natural number independently of one another, M<A, N<B, x=0,1,2 ..., M-1, y=0,1,2 ..., N-1;
By m * n dimension matrix filter w (s, t), described compression light intensity distributed data is carried out to linear filtering calculating, obtain intensity distribution function
wherein m is more than or equal to 3 and be less than or equal to arbitrary integer of 5, and n is more than or equal to 3 and be less than or equal to arbitrary integer of 5, a=(m-1)/2, and b=(n-1)/2, s, t are integer, be more than or equal to-a of s and be less than or equal to a, be more than or equal to-b of t and be less than or equal to b.
If described m * n dimension matrix filter w (s, t) is smooth Spaces wave filter, described dot density distribution function f
h(x, y)=g (x, y).
Described smooth Spaces wave filter is Gaussian filter.
If described m * n dimension matrix filter w (s, t) is sharpening spatial filter, described dot density distribution function f
h(x, y)=f (x, y)-g (x, y); Or, when described light distribution data are compressed, obtain compression light intensity distributed data, described dot density distribution function f
h(x, y)=h (x, y)-g (x, y).
The image boostfiltering device that described sharpening spatial filter is Laplace operator.
Utilize charge coupled cell to obtain the light distribution data of area source.
The embodiment of the present invention provides a kind of network point distribution method as above, first obtain light distribution data, this step is simple and quick, then by linear filtering, calculate these data are converted into intensity distribution function, this linear filtering calculates simply, saves time, moreover intensity distribution function is converted into dot density distribution function, transform also fairly simple herein, finally according to dot density distribution function, obtain dot density distributed data, according to dot density distributed data, generate the distribution of site, use this network point distribution method can carry out quickly and easily network point distribution.
In order further to solve the problems of the technologies described above, the second aspect of the embodiment of the present invention provides a kind of site generating apparatus, and this site generating apparatus comprises:
Light distribution data acquisition module, described light distribution data acquisition module is for obtaining the light distribution data of light source;
Linear filtering module, described linear filtering module, for described light distribution data are carried out to linear filtering calculating, obtains intensity distribution function;
Dot density distribution function acquisition module, described dot density distribution function acquisition module is for obtaining dot density distribution function according to described intensity distribution function;
Network point distribution generation module, described network point distribution generation module is for generating the distribution of site.
Described site generating apparatus also comprises light distribution data compressing module, and described light distribution data compressing module for compressing described light distribution data before carrying out linear filtering calculating.
Described light distribution data acquisition module comprises charge coupled cell.
Described network point distribution generation module comprises VBA.
The embodiment of the present invention provides a kind of site as above generating apparatus, the light distribution data of using described site generating apparatus quickly and easily acquisition module are obtained light distribution data, then use linear filtering module to carry out linear filtering to light distribution data and calculate intensity distribution function, this linear filtering calculates simple, save time, moreover use dot density distribution function acquisition module to obtain dot density distribution function according to described intensity distribution function, finally use network point distribution generation module according to dot density distribution function, to generate the distribution of site, use this site generating apparatus can carry out quickly and easily network point distribution.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The process flow diagram of the first network point distribution method that Fig. 1 provides for the embodiment of the present invention;
The process flow diagram of the second network point distribution method that Fig. 2 provides for the embodiment of the present invention;
The diffuser plate network point distribution schematic diagram that Fig. 3 provides for the embodiment of the present invention;
The schematic diagram of the first site generating apparatus that Fig. 4 provides for the embodiment of the present invention;
The schematic diagram of the second site generating apparatus that Fig. 5 provides for the embodiment of the present invention.
Description of reference numerals:
1-diffuser plate; 2-site.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-
The embodiment of the present invention provides a kind of network point distribution method, and as shown in Figure 1, this network point distribution method comprises:
Step S101, obtain the light distribution data of light source.
Can by multiple light intensity obtain manner, obtain the light distribution data of light source, the light distribution data of acquisition comprise A * B data, and A represents line number, and B represents columns, and A, B are arbitrary non-zero natural number independently of one another.The embodiment of the present invention is preferably by being used charge coupled cell (Charge-coupled Device is called for short CCD) to obtain light distribution data.When adopting CCD to obtain light distribution data, a pixel of CCD can be obtained light distribution data, CCD pixel number determined the quantity of the light distribution data obtained, the pixel value that above-mentioned A * B is CCD.
Step S102, light distribution data are carried out to linear filtering calculating, obtain intensity distribution function.
F (x, y) is any data in the light distribution data obtained, wherein x=0,1,2 ..., A-1, y=0,1,2 ..., B-1, by using m * n dimension matrix filter w (s, t) light distribution data to be carried out to linear filtering calculating, obtain intensity distribution function
wherein m is more than or equal to 3 and be less than or equal to arbitrary integer of 5, and n is more than or equal to 3 and be less than or equal to arbitrary integer of 5, a=(m-1)/2, and b=(n-1)/2, s, t are integer, be more than or equal to-a of s and be less than or equal to a, be more than or equal to-b of t and be less than or equal to b.
Because the pixel of CCD is generally more, in order to simplify linear filtering computation process, as shown in Figure 2, can before carrying out linear filtering calculating, to light distribution data, compress, obtain compression light intensity distributed data.Exemplarily, adjacent a plurality of light distribution data can be averaged as a compression light intensity distributed data.Wherein, compression light intensity distributed data comprises M * N data, and h (x, y) is any data in compression light intensity distributed data, wherein, M represents line number, and N represents columns, and M, N are arbitrary non-zero natural number independently of one another, M<A, N<B, x=0,1,2 ..., M-1, y=0,1,2 ..., N-1.Then, by m * n dimension matrix filter w (s, t), compression light intensity distributed data is carried out to linear filtering calculating, obtain intensity distribution function
wherein m is more than or equal to 3 and be less than or equal to arbitrary integer of 5, and n is more than or equal to 3 and be less than or equal to arbitrary integer of 5, a=(m-1)/2, and b=(n-1)/2, s, t are integer, be more than or equal to-a of s and be less than or equal to a, be more than or equal to-b of t and be less than or equal to b.
Exemplarily, the factors such as attribute of the ink that the wave filter w (s, t) using in above-described linear filtering computation process can select according to diffuser plate online point are selected, and the embodiment of the present invention does not limit this.In order to obtain better linear filtering effect, conventionally can select the wave filter w (s, t) of two types, a kind of is smooth Spaces wave filter, as Gaussian filter, for example, can elect as
Or
Deng; Another kind of for sharpening spatial filter, as the image boostfiltering device of Laplace operator, for example, can elect as
Or
Deng.
Step S103, according to intensity distribution function, obtain dot density distribution function.
Site, for regulating the light distribution of light source, makes light more even, the region that light intensity is stronger, and dot density should be larger, the two correlation.Therefore, can obtain dot density distribution function according to intensity distribution function.
Exemplarily, if m * n dimension matrix filter w (s, t) is smooth Spaces wave filter, dot density distribution function f
h(x, y)=g (x, y).
If m * n dimension matrix filter w (s, t) is sharpening spatial filter, dot density distribution function f
h(x, y)=f (x, y)-g (x, y) or f
h(x, y)=h (x, y)-g (x, y), wherein f
h(x, y)=f (x, y)-g (x, y) is applied in the situation of light distribution data without overcompression processing, f
h(x, y)=h (x, y)-g (x, y) is applied to light distribution data in the situation of overcompression processing.
Step S104, according to dot density distribution function, obtain dot density distributed data, according to dot density distributed data, generate the distribution of site.
Obtain dot density distribution function f
hafter (x, y), function f
hx in (x, y) and y often get a class value, can obtain a dot density distributed data, when x and y get all over all values in span separately, can obtain all dot density distributed datas.Then, by VBA(Visual Basic for Applications) etc. instrument according to dot density distributed data, generate the distribution of site.Exemplarily, as shown in Figure 3, in figure, dotted line is divided into a plurality of regions by diffuser plate 1, and the corresponding dot density distributed data in each region, is used VBA instrument to design, the site 2 of the suitable number that makes to distribute on each region.It should be noted that, the therefrom distribution mode of mind-set surrounding gradual change is taked in site in each region, exemplarily, if the dot density distributed data in this region is less, the dot density distributed data of peripheral region is larger, the site in this region should be in the situation that meeting dot density distributed data, and site therefrom mind-set surrounding increases progressively distribution gradually.In the situation that guaranteeing that this regional network dot density is certain, also and between adjacent area there is transition, thereby better light regulated in such distribution mode.
It should be noted that, the network point distribution method that the embodiment of the present invention provides can also can also can be used for the distribution of site in other structures for the network point distribution in light guide plate for the network point distribution on diffuser plate, and the embodiment of the present invention does not limit this.
The embodiment of the present invention provides a kind of network point distribution method as above, first obtain light distribution data, this step is simple and quick, then by linear filtering, calculate these data are converted into intensity distribution function, this linear filtering calculates simply, saves time, moreover intensity distribution function is converted into dot density distribution function, transform also fairly simple herein, finally according to dot density distribution function, obtain dot density distributed data, according to dot density distributed data, generate the distribution of site, use this network point distribution method can carry out quickly and easily network point distribution.
Embodiment bis-
The embodiment of the present invention provides a kind of site generating apparatus, and as shown in Figure 4, this site generating apparatus comprises:
Light distribution data acquisition module, light distribution data acquisition module is for obtaining the light distribution data of area source.Preferably, light distribution data acquisition module can comprise CCD, and wherein the pixel of CCD is higher, and the light distribution data of obtaining are more.In addition, light distribution data acquisition module can also comprise other light intensity acquiring units, and the embodiment of the present invention does not limit this.
Linear filtering module, linear filtering module, for light distribution data are carried out to linear filtering calculating, obtains intensity distribution function.Particularly, use linear filtering module to carry out linear filtering computation process to light distribution data as follows:
F (x, y) is any data in light distribution data, wherein x=0,1,2 ..., A-1, y=0,1,2 ..., B-1, by using m * n dimension matrix filter w (s, t) light distribution data to be carried out to linear filtering calculating, obtain intensity distribution function
wherein m is more than or equal to 3 and be less than or equal to arbitrary integer of 5, and n is more than or equal to 3 and be less than or equal to arbitrary integer of 5, a=(m-1)/2, and b=(n-1)/2, s, t are integer, be more than or equal to-a of s and be less than or equal to a, be more than or equal to-b of t and be less than or equal to b.
In addition, in order to simplify network point distribution, as shown in Figure 5, site generating apparatus can also comprise light distribution data compressing module, light distribution data compressing module, for light distribution data being compressed before carrying out linear filtering calculating, is obtained compression light intensity distributed data.Wherein, compression light intensity distributed data comprises M * N data, and h (x, y) is any data in compression light intensity distributed data, wherein, M represents line number, and N represents columns, and M, N are arbitrary non-zero natural number independently of one another, M<A, N<B, x=0,1,2 ..., M-1, y=0,1,2 ..., N-1.Use linear filtering module to carry out linear filtering computation process to compression light intensity distributed data as follows:
By m * n dimension matrix filter w (s, t), compression light intensity distributed data is carried out to linear filtering calculating, obtain intensity distribution function
wherein m is more than or equal to 3 and be less than or equal to arbitrary integer of 5, and n is more than or equal to 3 and be less than or equal to arbitrary integer of 5, a=(m-1)/2, and b=(n-1)/2, s, t are integer, be more than or equal to-a of s and be less than or equal to a, be more than or equal to-b of t and be less than or equal to b.
Dot density distribution function acquisition module, dot density distribution function acquisition module is for obtaining dot density distribution function according to intensity distribution function.While using dot density distribution function acquisition module to obtain dot density distribution function, if m * n dimension matrix filter w (s, t) is smooth Spaces wave filter, dot density distribution function f
h(x, y)=g (x, y).If m * n dimension matrix filter w (s, t) is sharpening spatial filter, dot density distribution function
in the situation that cloth data are processed without overcompression, f
h(x, y)=h (x, y)-g (x, y) is applied to light distribution data in the situation of overcompression processing.
Network point distribution generation module, network point distribution generation module is for generating the distribution of site.Preferably, network point distribution generation module comprises VBA.Exemplarily, as shown in Figure 3, in figure, dotted line is divided into a plurality of regions by diffuser plate 1, and the corresponding dot density distributed data in each region, is used VBA instrument to design, the site 2 of the suitable number that makes to distribute on each region.
It should be noted that, the site generating apparatus that the embodiment of the present invention provides can generate for the site on diffuser plate, also can generate for the site in light guide plate, also can be used for the generation of site in other structures, and the embodiment of the present invention does not limit this.
The embodiment of the present invention provides a kind of site as above generating apparatus, the light distribution data of using described site generating apparatus quickly and easily acquisition module are obtained light distribution data, then use linear filtering module to carry out linear filtering to light distribution data and calculate intensity distribution function, this linear filtering calculates simple, save time, moreover use dot density distribution function acquisition module to obtain dot density distribution function according to described intensity distribution function, finally use network point distribution generation module according to dot density distribution function, to generate the distribution of site, use this site generating apparatus can carry out quickly and easily network point distribution.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (12)
1. a network point distribution method, is characterized in that, comprises the following steps:
Obtain the light distribution data of light source;
Described light distribution data are carried out to linear filtering calculating, obtain intensity distribution function;
According to described intensity distribution function, obtain dot density distribution function;
According to described dot density distribution function, obtain dot density distributed data, according to described dot density distributed data, generate the distribution of site.
2. network point distribution method according to claim 1, is characterized in that, described light distribution data comprise A * B data, and A represents line number, and B represents columns, and A, B are arbitrary non-zero natural number independently of one another.
3. network point distribution method according to claim 2, is characterized in that, described light distribution data are carried out to linear filtering calculating, and the step that obtains intensity distribution function comprises:
F (x, y) is any data in described light distribution data, wherein, x=0,1,2 ... or A-1, y=0,1,2 ... or B-1;
By m * n dimension matrix filter w (s, t), described light distribution data are carried out to linear filtering calculating, obtain intensity distribution function
wherein m is more than or equal to 3 and be less than or equal to arbitrary integer of 5, and n is more than or equal to 3 and be less than or equal to arbitrary integer of 5, a=(m-1)/2, and b=(n-1)/2, s, t are integer, be more than or equal to-a of s and be less than or equal to a, be more than or equal to-b of t and be less than or equal to b;
Or,
Described light distribution data are compressed, obtained compression light intensity distributed data, wherein, described compression light intensity distributed data comprises M * N data, and h (x, y) is any data in described compression light intensity distributed data, wherein, M represents line number, and N represents columns, and M, N are arbitrary non-zero natural number independently of one another, M<A, N<B, x=0,1,2 ..., M-1, y=0,1,2 ..., N-1;
By m * n dimension matrix filter w (s, t), described compression light intensity distributed data is carried out to linear filtering calculating, obtain intensity distribution function
wherein m is more than or equal to 3 and be less than or equal to arbitrary integer of 5, and n is more than or equal to 3 and be less than or equal to arbitrary integer of 5, a=(m-1)/2, and b=(n-1)/2, s, t are integer, be more than or equal to-a of s and be less than or equal to a, be more than or equal to-b of t and be less than or equal to b.
4. network point distribution method according to claim 3, is characterized in that, if described m * n dimension matrix filter w (s, t) is smooth Spaces wave filter, and described dot density distribution function f
h(x, y)=g (x, y).
5. network point distribution method according to claim 4, is characterized in that, described smooth Spaces wave filter is Gaussian filter.
6. network point distribution method according to claim 3, is characterized in that, if described m * n dimension matrix filter w (s, t) is sharpening spatial filter, and described dot density distribution function f
h(x, y)=f (x, y)-g (x, y); Or, when described light distribution data are compressed, obtain compression light intensity distributed data, described dot density distribution function f
h(x, y)=h (x, y)-g (x, y).
7. network point distribution method according to claim 6, is characterized in that, the image boostfiltering device that described sharpening spatial filter is Laplace operator.
8. according to the network point distribution method described in claim 1-7 any one, it is characterized in that, utilize charge coupled cell to obtain the light distribution data of area source.
9. a site generating apparatus, is characterized in that, comprising:
Light distribution data acquisition module, described light distribution data acquisition module is for obtaining the light distribution data of light source;
Linear filtering module, described linear filtering module, for described light distribution data are carried out to linear filtering calculating, obtains intensity distribution function;
Dot density distribution function acquisition module, described dot density distribution function acquisition module is for obtaining dot density distribution function according to described intensity distribution function;
Network point distribution generation module, described network point distribution generation module is for generating the distribution of site.
10. site according to claim 9 generating apparatus, is characterized in that, also comprises light distribution data compressing module, and described light distribution data compressing module for compressing described light distribution data before carrying out linear filtering calculating.
11. site according to claim 9 generating apparatus, is characterized in that, described light distribution data acquisition module comprises charge coupled cell.
12. site according to claim 9 generating apparatus, is characterized in that, described network point distribution generation module comprises VBA.
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