CN1261735C - Position bar for measuring light guide plate nod and measuring method thereof - Google Patents
Position bar for measuring light guide plate nod and measuring method thereof Download PDFInfo
- Publication number
- CN1261735C CN1261735C CN 02152107 CN02152107A CN1261735C CN 1261735 C CN1261735 C CN 1261735C CN 02152107 CN02152107 CN 02152107 CN 02152107 A CN02152107 A CN 02152107A CN 1261735 C CN1261735 C CN 1261735C
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- guide plate
- light guide
- mesh point
- plate mesh
- thin slice
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Abstract
The present invention relates to a positioning bar for measuring lattice points of a light guide plate and a measuring method thereof, wherein the positioning bar for measuring lattice points of a light guide plate comprises a thin sheet and a plurality of marker points which are distributed regularly, and the distribution density of the marker points on the thin sheet is smaller than that of the lattice points of the light guide plate. When the lattice points of the light guide plate are measured, the positioning bar can be firstly attached on one surface which is opposite to the lattice points of the light guide plate, and then the lattice points of the light guide plate, which are attached with the positioning bar, are measured by a size analysis device; the market points of the positioning bar can provide exact reference positioning to the lattice points of the light guide plate so as to be convenient for the exact and rapid measurement of the lattice points of the light guide plate.
Description
[technical field]
The present invention relates to a kind of light guide plate measurement mechanism and measuring method thereof, particularly a kind of light guide plate mesh point measurement and positioning chi and adopt the measuring method of this positioning rule.
[background technology]
Light guide plate is the key component in the planar light source devices such as LCD backlight system or preceding photosystem, and it cooperates the transmission direction of guiding light with pointolite or line source, and the light that this pointolite or line source sent is converted to equally distributed area source.
For realizing a plurality of sites of tool definite shape being set usually or offering a plurality of V-shaped grooves with light guide plate exiting surface opposed bottom surface by the even distribution of light guide plate emergent ray.When by light transmission that pointolite or line source sent during to this site or V-shaped groove, this site or V-shaped groove can destroy the total reflection condition of light in the light guide plate internal transmission, and light is transmitted to different directions, are finally penetrated by the light guide plate exiting surface.Utilize various densitys, the site that varies in size or V-shaped groove, can make light guide plate luminous evenly.
Wherein, this site can directly be printed on bottom surface of light guide plate by the screen painting mode, perhaps with non-mode of printing and light guide plate one ejection formation.Be easy to make because of the site again and convenient control size, density, it is than the uniformly light-emitting of the easier realization light guide plate of V-shaped groove, thereby is used widely.
But the design of the areal distribution characteristic of light guide plate mesh point such as size, thickness, phase mutual edge distance etc. needs usually by verification experimental verification, so that reach best design.Product quality detection-phase after this verification experimental verification stage and volume production all seems particularly important to the measurement of light guide plate mesh point areal distribution characteristic, check.
The prior art measurement mechanism of light guide plate mesh point is generally image instrument, microscope equidimension analytical equipment.But, when adopting these dimension analysis devices that light guide plate mesh point is measured,, only can carry out naked eyes and figure light guide plate mesh point to be measured position because of there not being any reference point, its measuring speed is slow, and easily miscounts, and is difficult for correct fast comparison.
Therefore, improve light guide plate mesh point measurement mechanism and measuring method thereof, it is necessary improving light guide plate mesh point measuring speed and accuracy real.
[summary of the invention]
For overcome prior art light guide plate mesh point measurement mechanism measuring speed slowly, the problem of makeing mistakes easily, the invention provides a kind of light guide plate mesh point measurement and positioning chi, this kind light guide plate mesh point measurement and positioning chi can improve light guide plate mesh point measuring speed and accuracy.
The present invention also provides a kind of measuring method of using this light guide plate mesh point measurement and positioning chi.
The technical scheme that technical solution problem of the present invention is adopted is: a light guide plate mesh point measurement and positioning chi is provided, and it comprises a thin slice and a plurality of sign point that is distributed in this thin slice, and these a plurality of sign points provide accurate reference location to light guide plate mesh point.
Light guide plate mesh point measuring method of the present invention may further comprise the steps: the positioning rule that a plurality of sign points of a tool are provided; This positioning rule is attached at a surface relative with light guide plate mesh point; By a dimension analysis device light guide plate mesh point that is pasted with positioning rule is measured.
Compared to prior art, because of the sign point of light guide plate mesh point measurement and positioning chi of the present invention can provide correct location to the dot area to be measured of light guide plate, be convenient to light guide plate mesh point accurately, measure fast, and help the comparison of standardized product and sample.
[description of drawings]
Fig. 1 is the three-dimensional exploded view of light guide plate mesh point measurement and positioning chi of the present invention and light guide plate to be measured;
Fig. 2 is the three-dimensional combination figure of light guide plate mesh point measurement and positioning chi of the present invention and light guide plate to be measured;
Fig. 3 is the floor map of the another embodiment of light guide plate mesh point measurement and positioning chi of the present invention;
Fig. 4 is the schematic perspective view that adopts the dimension analysis device of light guide plate mesh point measurement and positioning chi of the present invention.
[embodiment]
As shown in Figure 1, be the three-dimensional exploded view of light guide plate mesh point measurement and positioning chi 50 of the present invention and light guide plate 20 to be measured.Wherein, this light guide plate 20 comprises an exiting surface 23, one and exiting surface 23 opposed bottom surface 22, and a plurality of sites 21 are arranged on the bottom surface 22 of this light guide plate 20.This positioning rule 50 comprises a thin slice (indicate) and a plurality of sign point 51, the size of this thin slice and light guide plate 20 exiting surfaces 23 or identical with site to be measured 21 area size of light guide plate 20.These a plurality of sign points 51 are dark round dot, and its regular distribution is in thin slice, and its density that distributes on thin slice is less than the distribution density of site 21 in light guide plate 20 bottom surfaces 22.
Please cooperate with reference to Fig. 1 and Fig. 2, when this positioning rule 50 is used, can directly be attached at the exiting surface 23 of light guide plate 20 to be measured.Because this light guide plate 20 is to make with transparent material, be attached at the exiting surface 23 of light guide plate 20 when positioning rule 50 after, also can observe via the bottom surface 22 of light guide plate 20 and to indicate point 51.So, each indicates the i.e. a plurality of sites 21 in corresponding certain zone of point 51, thereby provides a reference point for a plurality of sites 21 in this zone.
As shown in Figure 3, be the another embodiment of light guide plate mesh point measurement and positioning chi of the present invention, this positioning rule 40 comprises a thin slice (not indicating) and a plurality of sign point, these a plurality of sign points are arranged at the numeral of sheet surface for rule.Certainly, these a plurality of sign points also can be the symbol or the pattern of other tool identification function.
This positioning rule 50 and 40 egative films that can use always make, and its material is generally polyester for film, and as polyethylene terephthalate etc., it also can be made of plastic.
As shown in Figure 4, this positioning rule 50 can utilize dimension analysis device 30 to measure after fitting with light guide plate 20.The dimension analysis device 30 of present embodiment is a microscope, certainly, also can adopt other microscopic fields commonly used measurement, analytical equipment.
This dimension analysis device 30 comprises eyepiece 31, object lens 32, support 33, worktable 34, catoptron 35, base 36 and rocking handle 37.Wherein, this eyepiece 31 and object lens 32 are arranged at support 33 upper ends, and object lens 32 are relative with worktable 34.This worktable 34 is in order to place the positioning rule 50 and light guide plate 20 after fitting, and catoptron 35 is in order to provide illumination, so that the site 21 of clear view light guide plate 20.Rocking handle 37 can be regulated the lifting of worktable 34, with accurate focusing.
Details are as follows for light guide plate mesh point measuring method of the present invention:
One positioning rule 50 is provided, its site to be measured 21 area size with light guide plate 20 are identical, and this positioning rule 50 comprises a thin slice and regular distribution in a plurality of sign points 51 of this thin slice, and the density that this sign point 51 distributes on thin slice is less than the distribution density of site 21 in light guide plate 20 bottom surfaces 22;
This positioning rule 50 is attached at the exiting surface 23 of light guide plate 20 to be measured;
Place the worktable 34 of a dimension analysis device 30 to measure with light guide plate 20 positioning rule 50 that fits into one.
The sign point 51 of positioning rule 50 of the present invention can provide correct location to the dot area to be measured of light guide plate 20, is convenient to accurate, the measurement fast of light guide plate 20 sites 21, and helps the comparison of standardized product and sample.
This positioning rule is except that the design verification that can be applicable to light guide plate mesh point, and it also can be applicable to the Quality Detection of volume production product; It can be applied to all other printing opacity series products with the dimension analysis measurement device equally.
Claims (13)
1. a light guide plate mesh point measurement and positioning chi is characterized in that comprising a thin slice and a plurality of regular distribution in the sign point of this thin slice, and these a plurality of sign points provide accurate reference location to light guide plate mesh point.
2. light guide plate mesh point measurement and positioning chi according to claim 1, it is characterized in that: this thin slice is to make with plastics.
3. light guide plate mesh point measurement and positioning chi according to claim 1 is characterized in that: this thin slice is to make with the polyester for film material.
4. light guide plate mesh point measurement and positioning chi according to claim 3 is characterized in that: this polyester for film material is a polyethylene terephthalate.
5. light guide plate mesh point measurement and positioning chi according to claim 1, it is characterized in that: the density that this sign point distributes on thin slice is less than the distribution density of light guide plate mesh point.
6. light guide plate mesh point measurement and positioning chi according to claim 1 is characterized in that: this sign point is a dark round dot or with Digital ID.
7. light guide plate mesh point measuring method, it is characterized in that may further comprise the steps: a positioning rule is provided, and wherein this positioning rule comprises that a thin slice and a plurality of regular distribution are in the sign point of this thin slice; This positioning rule is attached at a surface relative with light guide plate mesh point; By a dimension analysis device light guide plate mesh point that is pasted with positioning rule is measured.
8. light guide plate mesh point measuring method according to claim 7 is characterized in that: this thin slice is to make with plastics.
9. light guide plate mesh point measuring method according to claim 7 is characterized in that: this thin slice is to make with the polyester for film material.
10. light guide plate mesh point measuring method according to claim 9 is characterized in that: this polyester for film material is a polyethylene terephthalate.
11. light guide plate mesh point measuring method according to claim 7 is characterized in that: the density that this sign point distributes on thin slice is less than the distribution density of light guide plate mesh point.
12. light guide plate mesh point measuring method according to claim 7 is characterized in that: this sign point is a dark round dot or with Digital ID.
13. light guide plate mesh point measuring method according to claim 7 is characterized in that: this dimension analysis device can be image instrument or microscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02152107 CN1261735C (en) | 2002-11-28 | 2002-11-28 | Position bar for measuring light guide plate nod and measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02152107 CN1261735C (en) | 2002-11-28 | 2002-11-28 | Position bar for measuring light guide plate nod and measuring method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1504719A CN1504719A (en) | 2004-06-16 |
| CN1261735C true CN1261735C (en) | 2006-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02152107 Expired - Fee Related CN1261735C (en) | 2002-11-28 | 2002-11-28 | Position bar for measuring light guide plate nod and measuring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1261735C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101308016B (en) * | 2008-07-03 | 2010-04-21 | 株洲南车时代电气股份有限公司 | Electric products panel light transmission checking method |
| JP6954142B2 (en) * | 2018-01-17 | 2021-10-27 | オムロン株式会社 | Image inspection equipment and lighting equipment |
| CN109494541B (en) * | 2018-12-28 | 2020-06-23 | 长沙五七一二飞机工业有限责任公司 | Universal type offline sample plate |
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2002
- 2002-11-28 CN CN 02152107 patent/CN1261735C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1504719A (en) | 2004-06-16 |
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Granted publication date: 20060628 Termination date: 20141128 |
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