CN103529502A - Optical plate - Google Patents
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- CN103529502A CN103529502A CN201310497866.3A CN201310497866A CN103529502A CN 103529502 A CN103529502 A CN 103529502A CN 201310497866 A CN201310497866 A CN 201310497866A CN 103529502 A CN103529502 A CN 103529502A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 156
- 238000004080 punching Methods 0.000 claims description 28
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- 238000000265 homogenisation Methods 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 10
- 238000005098 hot rolling Methods 0.000 description 6
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- 238000007731 hot pressing Methods 0.000 description 2
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Abstract
The invention discloses an optical plate. The side walls of an optical plate body are light incident planes, and the surfaces of the optical plate body are light emergent planes, external angle or internal angle shaped prisms are arranged on one surface of the optical plate body, spots are formed in the other surface of the optical plate body, the interior angles of the prisms range from 60 degrees to 160 degrees, the prisms and the spots are arranged randomly or arranged in a latticed shape, the junction parts of the prisms and the surface of the optical plate body form first bulged parts, and the junction parts of the spots and the surface of the optical plate body form second bulged parts. The optical plate meets the requirements for homogenization, large scaling, thinning, high brightness and productivity; particularly, the hot spot phenomenon caused by nonuniform light when an LED light source is used can be improved, and the local spotting phenomenon can be prevented; and the optical plate not only can meet the requirement of screen marking devices of a display and a computer, but also can be used as an illuminating lamp.
Description
Technical field
The invention relates to optical sheet, is about the prism on optical sheet body and spot specifically.
Background technology
Laser engraving, the precision optical machinery of serigraphy (Silk Printing), ink jet printing (Ink-jet printing) and non-printing-type when the process technology that in general, on the product such as optical sheet, microstructure is made is divided into printing mode are portrayed method, hot pressing (Hot Press) method etc.
Although serigraphy is applicable to large-scale production, sometimes there is environmental issue and the problem poor to the refraction effect of light; Although ink jet printing is applicable to a small amount of producing, and also has the unmanageable problem of environmental issue and ink; Although precision optical machinery is portrayed method, be applicable to large volume production, have the technical barriers such as production efficiency is low, the intensity of mechanical rear sheet material can be destroyed; Although laser engraving is applicable to concavo-convex pattern, have because investment cost causes being not suitable for greatly the problem of volume production; Hot-press method is owing to adding suitable pressure in optical sheet plane, and pressurization uniformly has difficulties, and also has investment cost greatly and the lower problem of repeatability.
Like this, optical sheet is in order to keep lower price, when reducing light source number compared with low power consumption, make again optical sheet keep higher briliancy, so, in order to improve briliancy, light source is altered to LED from CCFL, but when using LED, optical sheet is allowing the light source outgoing of point-like can cause focus (Hot Spot) phenomenon due to the unevenness of light in becoming the process of planar light source.
And, in order to prevent that local piebald phenomenon from appearring in optical sheet, engraving mode is to adopt the mechanical upper formation of chemical method for etching or laser engraving method to have the mechanical of microstructure, then the mode mint-mark on optical sheet by punching press goes out microstructure, its microstructure has the form of two jiaos of microstructures, mode of printing also can make microstructure form two jiaos of microstructures, two jiaos of above microstructures can be due to vacuum adsorption phenomenon adsorption moisture produce the piebald of locality.
Summary of the invention
The present invention proposes in order to solve above problem.
In order to reach above-mentioned purpose, a kind of optical sheet of the present invention, sidewall is light entrance face, surface is the optical sheet body of light-emitting face, on one surface of optical sheet body, be provided with external corner or the prism of inner corner trim shape, on another surface of optical sheet body, be provided with spot, the interior angle of prism is within the scope of 60 ~ 160 degree, prism is with spot random alignment or become clathrate to arrange, the position, boundary of prism and optical sheet body surface forms the first lug boss, and the position, boundary of spot and described optical sheet body surface forms the second lug boss.
Preferably: the first lug boss and the second lug boss are asymmetrical in one of them direction of X, Y direction, or at X, are symmetrical in Y direction.
Preferably: spot is inner corner trim shape.
Preferably: spot is negative and positive angular shape.
Preferably: there is inner prism on the top of spot.
Preferably: the spot inside of inner corner trim shape is provided with the projection of external corner shape.
Preferably: the ratio of optical sheet body surface to the volume of projection bottom and optical sheet body surface to the volume on spot top is 0.1-1, or the ratio of optical sheet body surface to the height of projection bottom and optical sheet body surface to the degree of depth on spot top be 0.1-1.
Preferably: spot upper and lower side area lower end area identical or spot is greater than upper end area.
Preferably: the cross sectional shape of spot is quadrangle, prismatic, ellipse, circle, polygon, closed curve.
Preferably: the round section diameter of spot is 1 ~ 400.
Preferably: the degree of depth of prism is certain or the degree of depth of prism passes through and gradually changes.
Preferably: the degree of depth of prism is 5 ~ 15.
Preferably: the distance between the summit of prism is 5 ~ 100.
Preferably: the degree of depth of spot is 1 to 30.
Preferably: when prism is external corner, the top of prism is curved surface.
Preferably: optical sheet body adopts polyolefin-based resins to be made.
Preferably: spot and prism are at high temperature stamped to form by punching press thing, described punching press thing is by semiconductor exposure developing technique and laser processing technology, to be made on corrosion resistant plate.
Preferably: on a surface of described optical sheet body, be provided with the sphere trough microstructure of inner corner trim shape, described sphere trough is that random alignment or one-tenth clathrate are arranged, and the juncture area of described sphere trough and described optical sheet body surface has the first lug boss.
Beneficial effect: the optical sheet in the present invention is to form optical sheet pattern by hot rolling punching press (Heating Roll Stamping) mode, by the interior edge mirror microstructure of prism or sphere trough or spot or spot, make it meet homogenization, maximize, slimming, the requirement of high briliancy and productibility, and can prevent local piebald.
Accompanying drawing explanation
Fig. 1 a is that prism is the outboard profile of optical sheet under external corner state.
Fig. 1 b is that prism is the outboard profile of optical sheet under inner corner trim state.
Fig. 2 is the left and right of the prism interior angle of optical sheet, the figure of upper and lower angle of visibility.
Fig. 3 is the left and right of the prism interior angle of optical sheet, the figure of upper and lower angle of visibility.
Fig. 4 is the hot spot phenomenon figure that optical sheet body surface does not have prism.
Fig. 5 is the hot spot phenomenon figure that optical sheet body surface has prism.
Fig. 6 has the schematic diagram that the spot of the second lug boss contacts with reflecting plate.
Fig. 7 a is the structural representation with the spot of inner prism.
Fig. 7 b has the schematic diagram that the spot of inner prism contacts with reflecting plate.
Fig. 8 a is that inner prism interior angle is the simulated experiment result figure of 160 o'clock emergence angle.
Fig. 8 b is that inner prism interior angle is the simulated experiment result figure of 150 o'clock emergence angle.
Fig. 8 c is that inner prism interior angle is the simulated experiment result figure of 140 o'clock emergence angle.
Fig. 8 d is that inner prism interior angle is the simulated experiment result figure of 130 o'clock emergence angle.
Fig. 8 e is that inner prism interior angle is the simulated experiment result figure of 120 o'clock emergence angle.
Fig. 8 f is that inner prism interior angle is the simulated experiment result figure of 110 o'clock emergence angle.
Fig. 8 g is that inner prism interior angle is the simulated experiment result figure of 100 o'clock emergence angle.
Fig. 8 h is that inner prism interior angle is the simulated experiment result figure of 90 o'clock emergence angle.
Fig. 8 i is that inner prism interior angle is the simulated experiment result figure of 80 o'clock emergence angle.
Fig. 8 j is that inner prism interior angle is the simulated experiment result figure of 70 o'clock emergence angle.
Fig. 9 a is the texture edge figure with the spot of negative and positive angular shape.
Fig. 9 b is the texture edge figure with the spot of negative and positive angular shape.
Fig. 9 c has the outboard profile that the projection of the spot of negative and positive angular shape contacts with reflecting plate.
Figure 10 is the schematic diagram that the lower end area of spot is greater than upper end area.
Figure 11 is a kind of outboard profile of structure of spot.
Figure 12 is a kind of outboard profile of structure of spot.
Figure 13 is a kind of outboard profile of structure of the optical sheet with sphere trough microstructure.
Reference numeral title is as follows:
10: reflecting plate; 100: optical sheet body; 110: prism; 112: top; 114: the first lug bosses; 120: spot; 122: the second lug bosses; 130: spot; 132: inner prism; 140: spot; 142: projection; 200: optical sheet body; 210: sphere trough; 212: the first lug bosses; 220: spot; 222: the second lug bosses.
Embodiment
Optical sheet by with reference to following is added to drawing to be illustrated.
According to embodiments of the invention, a kind of optical sheet comprises the optical sheet body 100 shown in Fig. 1 a and Fig. 1 b, prism 110, spot 120, and described prism 110 and spot 120 are microstructure.Described optical sheet can be used in conjunction with the liquid crystal display (LCD) that comprises notebook computer and personal computer screen, also can be used as illuminator lamp, be specially adapted to require slim, high briliancy, the liquid crystal display of environment-friendly type and low energy consumption or illuminator lamp, and the diameter of the optical sheet body 100 formed spots 120 in the inside is vital for liquid crystal display or the illuminator lamp of making thin products.The present invention is also applicable to cheap, high briliancy, environment-friendly type and the product that comprises TV (TV) display screen or illuminating lamp that meets field-of-view angle specification.And the angle of the prism 110 on the interior formed spot 120 of optical sheet body 100, optical sheet body 100, prism 110 and shape are all vital for comprising the product of tv display screen or illumination etc.Further, the position of prism 110 and spot 120 can random alignment in certain region, and in Fig. 1, prism 110 and spot 120 are evenly distributed or arrange with clathrate.
And the resin material of the optical sheet in the present embodiment by by polyolefin (Polyolefin) being is with the mode punching press of hot rolling punching press (Heating Roll Stamping), make the surface of optical sheet body 100 and the prism of the inside 110 and spot 120 fine structure simultaneously, prism 110 is positioned at a surface of optical sheet body 100, and spot 120 is positioned at another surface of optical sheet body.And the granular of prism 110 and spot 120 also can make by other means, laser engraving for example, hot pressing mode (Hot Press) carries out.
The reason that arrange with random form the position of prism 110 and spot 120 is in order to prevent prism 110 and spot 120 and to be put into the lip-deep parts of optical sheet (as prism, reflecting plate etc.) and to interfere with each other and More (Moire) line phenomenon occurs.Prism 110 and spot 120 can also reduce the generation of hot spot phenomenon.
The sidewall of optical sheet body 100 is that light is injected face, and light by the surperficial outgoing of optical sheet, is arranged at the light sources such as cold-cathode fluorescence lamp (CCFL) or light emitting diode (LED) sidewall or the two side of optical sheet body 100 in the process of dispersing.Particularly, in the situation that light source is light emitting diode, by optical sheet body 100, make the incident light of point-like become area source and penetrate.
Prism 110 is formed on the exit facet (surface) of optical sheet body 100, and prism 110 can be made into external corner (prism shows as the projection on optical sheet body surface) or inner corner trim (prism shows as the shrinkage pool on optical sheet body surface).Described external corner is to say that prism 110 is on the surface of optical sheet body 100 as shown in Figure 1a, and shows as the projection on optical sheet body 100.Described inner corner trim is to say that prism 110 is in the inside of optical sheet body 100 as shown in Figure 1 b, and shows as the shrinkage pool on optical sheet body 100.At this, setting the degree of depth of prism 110 from top 112 to bottom is that distance H, prism 100 summits is that angle (interior angle) between P, two prisms is θ.Prism 110 forms a plurality of continuous arrangements, that is to say that a plurality of prism continuous arrangements are on the surface of optical sheet body.Prism 110 irradiates by assembling from light source the light of coming, and because prism 110 is also microstructure, thereby can improve the briliancy of optical sheet.
At this moment, when prism 110 forms external corner as shown in Figure 1a, the top 112 of prism 110 is curved surface (curved surface is to have radius), when prism 110 is inner corner trim as shown in Figure 1 b, under the surface of optical sheet body 100, by forming depth H, be 1 to 30 groove, now, the shape of ladder shape will be put on side separately continuously in prism 110 cross sections, therefore in order to improve the irradiation uniformity coefficient of light, make light produce and disperse by prism 110.Here, the prism shown in Fig. 1 110 also can be portrayed method (V-Cutting) by precision optical machinery and is made on the surface of optical sheet body 100.
Particularly, when prism 110 forms in the situation of external corner, the top 112 of prism 110 is curved surface, so can prevent the local piebald of adhesion that prism 110 produces because line contacts with the parts that are placed on prism 110.When prism 110 forms inner corner trim, in the process that forms prism 110 by punching press due to punching press thing and optical sheet body 100 contact and pressurized portion different and at the top 112 of prism 110, form asymmetrical the first lug boss 114 of left and right two sides, described top 112 is exactly the position, boundary on prism 110 and optical sheet body 100 surfaces, that is to say that the top 112 of prism and the surface of optical sheet body 100 are in the same face.Because this asymmetric first lug boss 114 produces certain space with the parts on be placed in this, and the asymmetric state in the left and right of the first lug boss 114 can be random, the asymmetric state that is to say left and right two sides of the first lug boss 114 on same prism 110 can be uncertain, thus further prevent prism 110 with putting that parts thereon bind mutually the local piebald of adhesion that produces.At this moment the direction that the direction indication optical sheet body 100 of X-axis advances when hot rolling punching press.Although only for example understand that the first lug boss 114 is asymmetric in X-direction left and right here, also have at X, the direction of Y-axis forms symmetrical possibility.
And the scope of the distance P between the summit of prism 110 should be between 5 ~ 100; When depth H remains unchanged, should maintain below 20, more favourable scope is between 5 ~ 15.But be to gradually change from the end to end of optical sheet body 100 when the depth H of prism 110 changes, even if depth H changes, also depth dimension should be held between 5 ~ 15, then the degree of depth of the other end is set to 15, regulates in this way briliancy.
As shown in Figure 2 and Figure 3: the variation range of the interior angle θ of prism 110 is 90 ~ 160, according to the visual angle, left and right of interior angle θ and upper downwards angle of visibility, we can know that the interior angle θ of prism 110 is that positive briliancy is best in the situation that of 90 degree, and the situation downward view angle of 120 degree is bigger than normal.
Due in the situation that prism 110 is external corner, the top of prism 110 is curved surface; In the situation that prism 110 is inner corner trim, the top of prism 110 has asymmetrical the first lug boss 114.And the two all has the depth H of setting, it is hereby ensured the homogeneity of the light the light that irradiates out from light source is dispersed by prism 110, by the distance P between regulation depth H, interior angle θ and summit, improve hot spot phenomenon, improve briliancy, inhomogeneous (Mura) phenomenon that prevents brightness occurs.
Here hot spot phenomenon refers in the situation that light source is light emitting diode, because light emitting diode is pointolite, when more than two light emitting diode is placed on the sidewall of optical sheet side by side, in the light-emitting area of optical sheet, there are some regions to seem relatively brighter situation than other region.In the situation that require the area source of homogeneous, the phenomenon that allows image quality and briliancy all once greatly decline.
Fig. 4 is the hot spot phenomenon figure that optical sheet body 100 surfaces do not have prism 110, and Fig. 5 is the hot spot phenomenon figure that there is prism 110 on optical sheet body 100 surfaces, can find out that very large change has occurred the hot spot phenomenon in Fig. 5.By changing the numerical value of distance P between depth H, interior angle θ and the summit of prism 110 etc., make it obtain best focus and improve effect.That is to say, hot spot phenomenon is the unbalanced phenomena that occurs in the briliancy of light source front end, that is to say the briliancy deviation between light source front end and light source, produces the phenomenon of maximal value (MAX) and minimum value (MIN) difference in briliancy profile chart.At this moment be once all minimum/maximum, generally should have more than 90% all once.
As shown in Figure 6, Figure 7: spot 120 is formed in the inner corner trim shape of optical sheet body 100 the insides.Described inner corner trim shape refers to the inside that spot 120 is positioned at optical sheet body 100.The degree of depth of setting spot 120 is h, and the cross section of spot 120 can any known shape, and in the present embodiment, the cross section of spot 120 be circular, and the internal diameter of setting circle is D, and a plurality of continuous arrangements of spot 120 formation.For the light that makes to come from light source irradiates to the direction of the prism 110 of optical sheet body 100, and make spot 120 micro-structurals.The degree of depth h of spot 120 is in 1 ~ 30 scope, and the inner diameter D of spot 120 is in 1 ~ 400 scope.
When forming spot 120 by hot rolling punching press, because the projection on punching press thing is different from the pressure that the boudary portion of spot 120 is in contact with one another and spot 120 boudary portions are subject to, and form the second lug boss 122, the second lug boss 122 is symmetrical in the direction of X-axis, and is asymmetrical in the direction of Y-axis.This is that X-direction is expressed as the direction of advancing at the optical sheet body 100 of hot rolling punching course.Although illustrational is that the second lug boss 122 is asymmetrical in the direction of Y-axis, also can make the second lug boss 122 symmetrical in the direction of X, Y-axis here.
The second lug boss 122 can make the distance between optical sheet body 100 and reflecting plate 10 widen, and prevents that optical sheet from producing the local piebald (Wet out) of tackness.Here, reflecting plate 10 can be reflected back the light spilling from optical sheet body 100 in optics plate body 100, prevents that light from leaking outside, to increase the service efficiency of light.The second lug boss 122 can make to produce certain space between its optical sheet body 100 and reflecting plate 10, improves reflection of light efficiency, and the second lug boss 122 also can play the effect of diverging light, the homogeneity of raising light.。
Here, spot 120 and prism 110 can utilize machining, spot 120 and prism 110 are at high temperature stamped to form by punching press thing, the material of punching press thing be beyond corrosion resistant plate (Sus Plate), corrosion resistant plate there is similar hardness, bending property to corrosion resistant plate and thickness be the sheet material below 0.5mm.Projection on punching press thing and shrinkage pool are made by semiconductor exposure developing technique and laser processing technology.Regulate the distribution density (Density) of spot 120 and prism 110 all once to improve irradiation.As shown in figure 10: if spot 120 lower end surfaces are long-pending larger and form bent ship shape (α: the light (illumination) when light (illumination) in the time of 1 degree ~ 10 degree scopes) is more consistent than upper and lower side area is large than upper end end area.
The cross section of spot 120 can be circle, quadrangle, prismatic, ellipse, circle, polygon, it is curved to close, and the sub-illustrated of the present embodiment cross section is circular situation.
As shown in Figure 6: the first examples of implementation of spot 120 are inner corner trim shapes, the inside of spot 120 in the situation that of inner corner trim shape, spot inside surface (i.e. the top of spot 120 in figure) has uneven (Ra), and the uneven degree of inside surface is associated with the degree at random of light.
As shown in Figure 7: spot 130 is inner corner trim shapes, the inside surface of spot 130 is formed with the situation of inner prism 132, the degree of depth of setting inner prism 132 is that the distance between H1, summit is that P1, interior angle are θ 1, inner prism 132 is a plurality of continuous arrangements, by adjusting quantity, size, H1, P1, the θ 1 of inner prism 132, adjust the emergence angle of light, thereby reach the object of adjusting angle of visibility, and light can be gathered in the angle of visibility of LCDs or illuminating lamp, to improve briliancy and the uniformity coefficient of emergent light.
At this moment, the degree of depth h that has a spot 130 of inner prism 132 is 1 ~ 30, the diameter D of round section is 1 ~ 400.On spot 130 inside surfaces, at least form an inner prism 132, by regulating the distance P 1 between inner prism 132 summits, making P1 is 5 ~ 100, regulates the density of inner prism 132.The interior angle θ 1 of inner prism 132 is best within the scope of 60 ~ 160 degree simultaneously.
As shown in Figure 9: spot 140 is negative and positive angular shapes, to say that a part for spot 140 is positioned at the inside of optical sheet body 100, another part is positioned at the outside of optical sheet body 100, a part that is to say spot 140 shows as the shrinkage pool on optical sheet body 100, and another part shows as the projection on optical sheet body 100.Center in the inside of spot 140 is formed with and the reciprocal projection 142 of spot 140.Stretch out outside the surface of optical sheet body 100 bottom of projection 142, that is to say that the bottom of projection 142 shows as the lip-deep projection of optical sheet body 100.
As shown in Fig. 9 b: for the spot 140 of negative and positive angular shape, the surface that is set in optical sheet body 100 in projection 142 to projection 142 bottoms (below) volume be V1, the surface that is set in optical sheet body 100 in spot 140 to spot 140 tops (above) volume be V2, the scope of V1/ V2 is between 0.1 to 1, to be suitable (0.1≤VI/V2 < 1).And for the spot 140 that is formed at negative and positive angular shape, the height of setting the surperficial bottom to projection 142 of optical sheet body 100 is h1, the surface of setting optical sheet body 100 is De to the height on the top of spot 140, and the scope of h1/De is 0.1 to 1(0.1≤h1/De < 1) for best.
As shown in Figure 8: because the variation of inner prism 132 interior angle θ 1 changes the light emergence angle in optical sheet, therefore can adjust according to the requirement of emergence angle the angle of interior angle θ 1.The interior angle θ 1 of inner prism 132 is between 160 degree ~ 120 degree time, and the distribution of light has the tendency penetrating from above-below direction, and this is conducive to be applicable to general optical sheet; Interior angle θ 1 between 110 degree ~ 90 in, the distribution of light has the phenomenon of dispersing, and is conducive to reduce cloudy surface degree, can place general Rhizoma Sparganii runner plate on optical sheet; Interior angle θ 1 is 80 degree, 70 degree time, light be distributed with the tendency rising from optical sheet center, on optical sheet, need not place better Rhizoma Sparganii runner plate.
[table]
The light that table one is spot 120,130,140 cloudy surface degree 27% and 93% in the situation that is table relatively for example.
As above-mentioned table one, when being 27% with cloudy surface degree (Haze), compare light large 12.29% when cloudy surface degree is 93%.This is conducive to raising and the improvement of bearing property of Visual of briliancy characteristic.
[table two]
Table two is at the inner diameter D of spot 120,130,140 brighter table 40 and 60 in the situation that.
As above-mentioned table two, spot 120,130,140 inner diameter D are light large 7.03% in 60 than in 40.
[table three]
Table three is the degree of depth h of comparison spot 120,130,140 brighter tables in 3 and 10.
As above-mentioned table three, when spot 120,130,140 degree of depth h are 10 than the time light large 3.45% that is 3.
[table four]
Table four is comparisons of angle [alpha] light in the situation that of 0 degree and 10 degree of comparison spot 120,130,140.
As above-mentioned table four, light large 1.61% when the angle [alpha] of spot 120,130,140 is 10 degree.
If table one is above to table four, on bright impact, be sequentially cloudy surface degree > inner diameter D > degree of depth h > angle [alpha].
The optical sheet of son comprises optical sheet body 100 as shown in fig. 11 according to other embodiments of the invention, prism 110 and spot 120, the structure of optical sheet body 100 and prism 110 and effect are same as above-mentioned example, inside at spot 120 during by punching press forms projection 142, according to contacting and the difference of pressurized portion of punching press thing and optical sheet body 100, on the adjacent position with optical sheet body 100 surfaces, form asymmetric second lug boss 122 of X-direction.For example understand that the second lug boss 122 is asymmetric in the direction of X-axis here, but also can symmetry and X, Y direction.By this embodiment, can find out that projection 142 can have different shapes.
The optical sheet of son, as Figure 12 illustrates, comprises optical sheet body 100 according to other embodiments of the invention, and prism 110 and spot 120 have same structure and technical ability in optical sheet body 100 and prism 110 and examples of implementation above, therefore omit detailed explanation.By this embodiment, can see that spotting out 120 can have different shapes.Spot 120 can utilize machining, by punching press thing, be at high temperature stamped to form, punching press thing be beyond corrosion resistant plate (Sus Plate), corrosion resistant plate there is similar hardness, bending property to corrosion resistant plate and thickness be on the sheet material below 0.5mm, use semiconductor exposure developing technique and be made by laser processing technology.Regulate distribution density (Density) the distribution raising of spot 120 light-struck all once, form the unification of upper and lower side area or the bent ship shape image that lower end area is greater than upper end.At this moment the top of spot 120 is curved surfaces, and cross section is quadrangle, prismatic, ellipse, circle, polygon and the shape of one of closing in curved.When the cross section of this example illustrated spot 120 is circular, its side is the situation of ladder image.And spot 120 can form asymmetric or symmetrical the second lug boss 122 with the place of the boundary of optical sheet body 100.
According to the optical sheet of another example of the present invention, comprise as shown in figure 13 optical sheet body 100, sphere trough 210 and spot 220, should be applicable to comprise LCDs or the illuminating lamp of TV (TV).The position of sphere trough 210 and spot 220 can be arranged in random form or grid form.Sphere trough 210 and spot 220 positions also can be arranged in and form the same in example above.
The effect of optical sheet body 110 and spot 220 is identical with previous examples with structure, therefore omits detailed explanation.
When particularly sphere trough 210 is inner corner trim shape, contacting and the difference of pressurized portion and produce asymmetrical the first lug boss 212 at the surperficial intersection of sphere trough 210 and optical sheet body 200 (top of the position that two sphere troughs 210 have a common boundary) due to punching press thing and optical sheet body 200 in the process of punching press.Due to this first lug boss 212, can produce insulating space with being placed on the first lug boss 212 plate above, can prevent optical sheet and be placed on the first lug boss 212 plate above owing to being in contact with one another and producing the local piebald of adhesion with optical sheet body 100.Travel direction when at this moment the direction indication optical sheet body 200 of X-axis is by hot rolling punching press.The second lug boss 222 is asymmetrical situation in X-direction in the present embodiment, but also can be formed on X, the situation of Y direction symmetry.
The top of the second lug boss 222 (inside surface) has lip-deep uneven (Ra), but also can as in above-mentioned examples of implementation, in the inside of inner corner trim shape, form inner prism 132 or make spot 220 form negative and positive angular shape, while forming spot 220 due to the punching press of optical sheet body 200 the insides and adjacent regions, different due to the contact of punching press thing and optical sheet body and pressurized portion, in X-direction, produce symmetry, in Y direction, produce asymmetric or formation and X, the second lug boss 222 of Y direction symmetry.
At this moment the second lug boss 222 shows as the lip-deep projection of optical sheet body 200, and the second lug boss 222 is positioned at part or all of surrounding position of spot 220.The shape of the second lug boss 222 is radioactive shapes.Spot 220 has 1 ~ 30 the degree of depth and 1 ~ 400 diameter.
Claims (18)
1. an optical sheet, sidewall is light entrance face, surface is the optical sheet body of light-emitting face, it is characterized in that: on a surface of described optical sheet body, be provided with external corner or the prism of inner corner trim shape, on another surface of described optical sheet body, be provided with spot, the interior angle of described prism is within the scope of 60 ~ 160 degree, described prism is with spot random alignment or become clathrate to arrange, the position, boundary of described prism and described optical sheet body surface forms the first lug boss, and the position, boundary of described spot and described optical sheet body surface forms the second lug boss.
2. optical sheet according to claim 1, is characterized in that: the first lug boss and the second lug boss are asymmetrical in one of them direction of X, Y direction, or at X, are symmetrical in Y direction.
3. optical sheet according to claim 1, is characterized in that: spot is inner corner trim shape.
4. optical sheet according to claim 1, is characterized in that: spot is negative and positive angular shape.
5. optical sheet according to claim 3, is characterized in that: there is inner prism on the top of spot.
6. optical sheet according to claim 4, is characterized in that: the spot inside of inner corner trim shape is provided with the projection of external corner shape.
7. optical sheet according to claim 6, it is characterized in that: the ratio of optical sheet body surface to the volume of projection bottom and optical sheet body surface to the volume on spot top is 0.1-1, or the ratio of optical sheet body surface to the height of projection bottom and optical sheet body surface to the degree of depth on spot top is 0.1-1.
8. optical sheet according to claim 1, is characterized in that: spot upper and lower side area lower end area identical or spot is greater than upper end area.
9. optical sheet according to claim 1, is characterized in that: the cross sectional shape of spot is quadrangle, prismatic, ellipse, circle, polygon, closed curve.
10. optical sheet according to claim 9, is characterized in that: the round section diameter of spot is 1 ~ 400.
11. optical sheets according to claim 1, is characterized in that: the degree of depth of prism is certain or the degree of depth of prism passes through and gradually changes.
12. optical sheets according to claim 11, is characterized in that: the degree of depth of prism is 5 ~ 15.
13. optical sheets according to claim 1, is characterized in that: the distance between the summit of prism is 5 ~ 100.
14. optical sheets according to claim 1, is characterized in that: the degree of depth of spot is 1 to 30.
15. optical sheets according to claim 1, is characterized in that: when prism is external corner, the top of prism is curved surface.
16. optical sheets according to claim 1, is characterized in that: optical sheet body adopts polyolefin-based resins to be made.
17. optical sheets according to claim 16, is characterized in that: spot and prism are at high temperature stamped to form by punching press thing, and described punching press thing is by semiconductor exposure developing technique and laser processing technology, to be made on corrosion resistant plate.
18. optical sheets according to claim 2, it is characterized in that: the sphere trough microstructure that is provided with inner corner trim shape on a surface of described optical sheet body, described sphere trough is that random alignment or one-tenth clathrate are arranged, and the juncture area of described sphere trough and described optical sheet body surface has the first lug boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310497866.3A CN103529502A (en) | 2013-10-22 | 2013-10-22 | Optical plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310497866.3A CN103529502A (en) | 2013-10-22 | 2013-10-22 | Optical plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103529502A true CN103529502A (en) | 2014-01-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310497866.3A Pending CN103529502A (en) | 2013-10-22 | 2013-10-22 | Optical plate |
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| Country | Link |
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| CN (1) | CN103529502A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898097A (en) * | 2015-02-17 | 2016-08-24 | 株式会社东芝 | Image processing device, article processing apparatus, and image processing method |
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| CN1517724A (en) * | 2003-01-23 | 2004-08-04 | ���ǵ�����ʽ���� | Light guide plate and manufacturing method thereof |
| TW200837394A (en) * | 2007-03-08 | 2008-09-16 | Optivision Technology Inc | Diffusive prism sheet |
| US20110109843A1 (en) * | 2009-11-06 | 2011-05-12 | Samsung Electronics Co., Ltd. | Light guide panel, backlight unit and display apparatus |
| CN203773079U (en) * | 2013-10-22 | 2014-08-13 | 南京高一智光电有限公司 | Optical plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020024803A1 (en) * | 2000-08-31 | 2002-02-28 | Masaya Adachi | Plane-like lighting units and display equipment provided therewith |
| CN1501142A (en) * | 2002-09-28 | 2004-06-02 | ���ǵ�����ʽ���� | Backlight assembly, liquid crystal display device and manufacturing method thereof |
| CN1517724A (en) * | 2003-01-23 | 2004-08-04 | ���ǵ�����ʽ���� | Light guide plate and manufacturing method thereof |
| TW200837394A (en) * | 2007-03-08 | 2008-09-16 | Optivision Technology Inc | Diffusive prism sheet |
| US20110109843A1 (en) * | 2009-11-06 | 2011-05-12 | Samsung Electronics Co., Ltd. | Light guide panel, backlight unit and display apparatus |
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| CN105898097A (en) * | 2015-02-17 | 2016-08-24 | 株式会社东芝 | Image processing device, article processing apparatus, and image processing method |
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