CN204882921U - Light conducting plate - Google Patents
Light conducting plate Download PDFInfo
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- CN204882921U CN204882921U CN201520451194.7U CN201520451194U CN204882921U CN 204882921 U CN204882921 U CN 204882921U CN 201520451194 U CN201520451194 U CN 201520451194U CN 204882921 U CN204882921 U CN 204882921U
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Abstract
The utility model discloses a light conducting plate, this light conducting plate have into the plain noodles, go out plain noodles and site face, it is located to go into the plain noodles light conducting plate's side, go out the plain noodles with the site facial features is to setting up, be formed with a plurality of site on the face of site, the site according to from light conducting plate's income plain noodles apart from far and near and to set different sites to regional, the shape of the regional site in different sites along with the regional income plain noodles from light conducting plate in each site apart from far and near and change, wherein, be less than from going into the area of plain noodles apart from the site in near site region from the area of going into the regional site in site that the plain noodles distance is far away. The utility model discloses a light conducting plate than present in an optical uniformity is better, its luminous luminance homogeneous, and the display frame effect is good.
Description
Technical field
The utility model relates to a kind of light guide plate.
Background technology
Light guide plate is widely used in LCD TV backlight assembly and the mobile terminal such as mobile phone, panel computer, is one of core component in New Type Display Devices, is also one of core component of Novel flat light source simultaneously.As shown in Figure 1, light guide plate comprises incidence surface 3, dot surface 1 and exiting surface 4, and site 2 is arranged on the dot surface 1 relative with exiting surface 4, the arranged outside LED light bar 5 of incidence surface 3, and the light penetrated from exiting surface 4 after the array effect of site is uniform planar light 6.For the light guide plate as liquid crystal display television or flat illumination of big size, a kind of method for making adopts high reverse--bias and refractivity ink point-like, matrix distribution in the bottom surface silk-screen steel mesh printing of light guide plate, to ensure that the light that LED launches can be propagated to be totally reflected form in light guide plate, light is evenly distributed on each site, thus make light guide plate exiting surface obtain the light effect of uniformity, meet display frame brightness uniformity requirements.The effect of bottom surface of light guide plate site is, the pointolite that light LED point light source sent is propagated with total reflection form in light guide plate is converted into the light meeting brightness requirement, uniformity requirements that LCD TV etc. needs.The light being changed this position by guide-lighting site is totally reflected propagation conditions, will project the light barrier at site place and catch, thus produce micro-luminescence at site place, and when a large amount of site is all luminous, whole light guide plate front just obtains the comparatively homogeneous planar light source of brightness.Light guide plate material requires that transmittance is high, cuts, and shaping and polishing performance is good, and ink adhesion is good, with nothing leftly gets good processability ready.The material of current widespread use is optical grade acryl plates, and thickness is divided into 3mm, 2.5mm, 2mm, 1.8mm, 1.5mm, 1mm etc., and different-thickness is for the product of different size.The liquid crystal module of current 42 more than 〞 adopts 3mm thick plates in the majority, and 21 〞-32 〞 are in the majority with 2mm thickness, and 15 below 〞 all adopt 0.8-1.5mm thickness sheet material.But PMMA (acrylic) sheet material water-intake rate is higher, and size is larger, dimensional stability is deteriorated, and especially 55 more than 〞 products are especially true, and therefore part starting material producer has started the composite material producing PMMA and PC and portions additive.How improving the uniformity of luminance of light guide plate further, improve optical property, is the difficult point that prior art faces.
Utility model content
Fundamental purpose of the present utility model is for the deficiencies in the prior art, provides a kind of light guide plate can improving optical property.
For achieving the above object, the utility model is by the following technical solutions:
A kind of light guide plate, there is incidence surface, exiting surface and dot surface, described incidence surface is positioned at the side of described light guide plate, described exiting surface and described dot surface are oppositely arranged, described dot surface is formed with several sites, different dot area is arranged to according to the incidence surface distance from light guide plate in described site, the shape of the site of different dot area changes from the incidence surface distance of light guide plate along with each dot area, wherein, from the area of the site of the dot area of incidence surface distance be less than from incidence surface apart from close to the area of site of dot area.
Further:
Direction away from becoming along the incidence surface distance from light guide plate, the shape of the site of described different dot area is followed successively by circle, ellipse and linear.
The diameter of circular shaped lattice point is 0.05-2mm, and the degree of depth is 0.02-0.12mm, and the major diameter of oval site is 0.05-3mm, minor axis is 0.05-1.2mm, and the degree of depth is 0.02-0.12mm, and the length of linear site is 0.05-3mm, width is 0.05-0.8mm, and the degree of depth is 0.02-0.12mm.
Also comprise the volcano degree of lip-rounding dot area be arranged between circular shaped lattice point and oval dot area, the width of the shape site, volcano of described volcano degree of lip-rounding dot area is 0.05-2mm, and the degree of depth is 0.02-0.12mm.
Described site is arranged into multiple row according to the incidence surface distance from light guide plate, and each distance arranged from incident side is followed successively by: an=a1+ (n-1) d+ δ, wherein an is the distance of the n-th row site distance incident side, n is natural number, the distance of a1 and first row site distance incidence surface, d is the minimum reference distance values preset, and δ is the modified value of 0.05-0.5mm.
Circular shaped lattice point in described site is male-type circular shaped lattice point or umbilicate type circular shaped lattice point.
Described site is the site that laser dotting is formed.
The beneficial effects of the utility model:
According to the light guide plate of net-pont design of the present utility model, light guide plate significantly promotes than existing light guide plate in light-emitting uniformity, and its luminosity is homogeneous, and display frame effect is good.In addition, this distributed net-pont design is while the better optical effect of generation, and also help and obtain higher working (machining) efficiency to light guide plate, working (machining) efficiency and optical effect are all optimized.
Accompanying drawing explanation
Fig. 1 is the structural representation of light guide plate;
Fig. 2 is the lattice point structure schematic diagram of the light guide plate of the utility model embodiment;
Fig. 3 a to Fig. 3 d is respectively the schematic diagram of circle, the volcano degree of lip-rounding, ellipse and linear site.
Embodiment
Below embodiment of the present utility model is elaborated.It is emphasized that following explanation is only exemplary, instead of in order to limit scope of the present utility model and application thereof.
Consult Fig. 2, in one embodiment, a kind of light guide plate, there is incidence surface 3, exiting surface 4 and dot surface 1, described incidence surface 3 is positioned at the side of described light guide plate, described exiting surface 4 is oppositely arranged with described dot surface 1, described dot surface is formed with several sites, different dot area is arranged to according to the incidence surface distance from light guide plate in described site, the shape of the site of different dot area changes from incidence surface 3 distance of light guide plate along with each dot area, wherein, from the area of the site of the dot area of incidence surface 3 distance be less than from incidence surface 3 apart from close to the area of site of dot area.The concentrated research of utility model people finds, the various light guide plate distributed according to this dot shape more existing light guide plate in light-emitting uniformity significantly promotes, and luminosity is homogeneous, and display frame effect is good.In addition, this distributed net-pont design, while the better optical effect of generation, also helps the working (machining) efficiency that acquisition is higher.
The sheet material of light guide plate can be adopt PMMA, PC etc.
As shown in Fig. 2 and Fig. 3 a, 3c, 3d, in a preferred embodiment, the direction away from becoming along the incidence surface distance from light guide plate, the site of described different dot area is followed successively by circular shaped lattice point 21, oval site 22 and linear site 23.
In a more preferred embodiment, the diameter of circular shaped lattice point 21 is 0.05-2mm, the degree of depth is 0.02-0.12mm, the major diameter of oval site 22 is 0.05-3mm, minor axis is 0.05-1.2mm, and the degree of depth is 0.02-0.12mm, and the length of linear site 23 is 0.05-3mm, width is 0.05-0.8mm, and the degree of depth is 0.02-0.12mm.
Consult Fig. 3 b, in a more preferred embodiment, dot surface also comprises the volcano degree of lip-rounding dot area be arranged between circular shaped lattice point and oval dot area, the width of the shape site, volcano of described volcano degree of lip-rounding dot area is 0.05-2mm, and the degree of depth is 0.02-0.12mm.
In a preferred embodiment, described site is arranged into multiple row according to the incidence surface distance from light guide plate, and each distance arranged from incident side is followed successively by: an=a1+ (n-1) d+ δ, wherein an is the distance of the n-th row site distance incident side, n is natural number, the distance of a1 and first row site distance incidence surface, d is the minimum reference distance values preset, and δ is the modified value of 0.05-0.5mm.In conjunction with aforementioned dot shape distribution design, find obtain again in light-emitting uniformity with the various light guide plate of this site density distribution scheme significantly to promote further.
Circular shaped lattice point in described site can be male-type circular shaped lattice point or umbilicate type circular shaped lattice point.
In certain embodiments, described site is the site that laser dotting is formed.In addition, also can be the site that ink is printed or other modes are made.
The concrete size of circular shaped lattice point, oval site, line style site, the various embodiment in type site, volcano is as following table 1.
Table 1
Can design according to the dot area size of corresponding linear change and density arrangement from incident side distance, effectively offset the impact of the luminance nonuniformity that decay brings when light is propagated in light guide plate.Site density arrangement design adopts the distance arrangement of change dot matrix site, can obtain the working (machining) efficiency of better optical effect and Geng Gao.Different dot shape mixing, working (machining) efficiency and optical effect are optimized more.
Also can design the arrangement of site size, site, front end is little, and site, rear end is large.
During actual fabrication, light guide plate processing technology is described below:
Step 1: light guide plate sheet material is cut into the little sheet material of corresponding size.
Step 2: light guide plate is carried out size and accurately processes, uses CNC machining center.
Step 3: carry out finishing polish processing to light inlet end face, carries out rough polishing processing to other end faces and carries out the process of reflection bar parcel to non-light inlet end face, prevent light from leaking outside.
Step 4: use G-TOOLS software, BL-DOTS or the regular software of other light guide plate plate net-pont designs carry out site and design for the first time.
Step 5: the site designed is converted into cad document, is transported to laser process equipment data processing centre (DPC).
Step 6: light guide plate to be processed is put into laser dotting job platform, starting outfit carries out site processing.
Step 7: ready-made for site light guide plate is carried out 9 optic tests, evaluates brightness and uniformity, when not reaching standard, and revision site size, density, and shape and adjustment laser output power change working depth, until product can meet optical specifications.
Step 8: the dot parameters adjusted is carried out preserving and standardization, for large-scale production.
Step 9: the light guide plate processing site carries out dust removal process (adopting surperficial binding dust, one or more modes of vacuum cleaning or water washing dedust).
Step 10:: the light guide plate after dedusting carries out surface defects detection.
Step 11: specification product dot surface is protected with PE.
Light guide plate laser dotting equipment can adopt following typical process parameter:
Processing dimension: 85 " within all can process;
Laser power: be greater than 100 watts;
Processing minimum dimension: 0.08mm;
Processing minimum-depth: 0.02mm.
Above content combines concrete/preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; its embodiment that can also describe these makes some substituting or modification, and these substitute or variant all should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. a light guide plate, there is incidence surface, exiting surface and dot surface, described incidence surface is positioned at the side of described light guide plate, described exiting surface and described dot surface are oppositely arranged, described dot surface is formed with several sites, it is characterized in that, different dot area is arranged to according to the incidence surface distance from light guide plate in described site, the shape of the site of different dot area changes from the incidence surface distance of light guide plate along with each dot area, wherein, from the area of the site of the dot area of incidence surface distance be less than from incidence surface apart from close to the area of site of dot area.
2. light guide plate as claimed in claim 1, is characterized in that, the direction away from becoming along the incidence surface distance from light guide plate, and the shape of the site of described different dot area is followed successively by circle, ellipse and linear.
3. light guide plate as claimed in claim 1, it is characterized in that, the diameter of circular shaped lattice point is 0.05-2mm, the degree of depth is 0.02-0.12mm, and the major diameter of oval site is 0.05-3mm, and minor axis is 0.05-1.2mm, the degree of depth is 0.02-0.12mm, the length of linear site is 0.05-3mm, and width is 0.05-0.8mm, and the degree of depth is 0.02-0.12mm.
4. light guide plate as claimed in claim 1, it is characterized in that, also comprise the volcano degree of lip-rounding dot area be arranged between circular shaped lattice point and oval dot area, the width of the shape site, volcano of described volcano degree of lip-rounding dot area is 0.05-2mm, and the degree of depth is 0.02-0.12mm.
5. the light guide plate as described in any one of Claims 1-4, it is characterized in that, described site is arranged into multiple row according to the incidence surface distance from light guide plate, and each distance arranged from incidence surface is followed successively by: an=a1+ (n-1) d+ δ, wherein an is the distance of the n-th row site distance incidence surface, and n is natural number, the distance of a1 and first row site distance incidence surface, d is the minimum reference distance values preset, and δ is the modified value of 0.05-0.5mm.
6. the light guide plate as described in any one of Claims 1-4, is characterized in that, the circular shaped lattice point in described site is male-type circular shaped lattice point or umbilicate type circular shaped lattice point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520451194.7U CN204882921U (en) | 2015-06-25 | 2015-06-25 | Light conducting plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520451194.7U CN204882921U (en) | 2015-06-25 | 2015-06-25 | Light conducting plate |
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| CN204882921U true CN204882921U (en) | 2015-12-16 |
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| CN201520451194.7U Active CN204882921U (en) | 2015-06-25 | 2015-06-25 | Light conducting plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977649A (en) * | 2015-06-25 | 2015-10-14 | 东莞轩朗实业有限公司 | Light guide plate and laser dotting light guide plate production method |
| CN106195804A (en) * | 2016-08-30 | 2016-12-07 | 昆山市诚泰电气股份有限公司 | The L-type optical texture of planar light source and there is the planar light source of this structure |
-
2015
- 2015-06-25 CN CN201520451194.7U patent/CN204882921U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977649A (en) * | 2015-06-25 | 2015-10-14 | 东莞轩朗实业有限公司 | Light guide plate and laser dotting light guide plate production method |
| CN106195804A (en) * | 2016-08-30 | 2016-12-07 | 昆山市诚泰电气股份有限公司 | The L-type optical texture of planar light source and there is the planar light source of this structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 517000 Heyuan, Guangdong Jiangdong new district, Linjiang Town, Lian Xin Village, Po Po, Henan Road, Lang Lang Industrial Park first, second Patentee after: Guangdong Xuan Long Industrial Co., Ltd. Address before: 523000 A 1 1 and 2 floor, No. 352 Xiangyang Road, Shigu community, Tangxia Town, Dongguan, Guangdong Patentee before: Dongguan Xuan Lang Industrial Company Limited |
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| CP03 | Change of name, title or address |