CN102221156B - Light source module - Google Patents
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- CN102221156B CN102221156B CN2011101604768A CN201110160476A CN102221156B CN 102221156 B CN102221156 B CN 102221156B CN 2011101604768 A CN2011101604768 A CN 2011101604768A CN 201110160476 A CN201110160476 A CN 201110160476A CN 102221156 B CN102221156 B CN 102221156B
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Abstract
The embodiment of the invention discloses a light source module comprising a light guide plate and a light source device, wherein the light guide plate is provided with a light outlet surface, a light reflecting surface opposite to the light outlet surface, and at least one light inlet surface connected between the light outlet surface and the light reflecting surface, the light guide plate is provided with a plurality of light reflecting structures on the light reflecting surface, each light reflecting structure comprises a closed light action region and a plurality of bulges arranged in the light action region, the light action region and the light reflecting surface are not arranged in the same surface, the bulges extend to the exterior of the light guide plate, and the light source device is arranged opposite to the light inlet surface. A light ray, provided by the light source device, enters the light guide plate by the light inlet surface, is redirected by one bulge on the light reflecting surface and then is guided out of the light guide plate by the light outlet surface. The light source module can provide better light outlet benefits.
Description
The application is that to be " 201010159431.4 ", the applying date be " on April 6th, 2010 ", invention and created name dividing an application for the patented claim of " light source module " to application number.
Technical field
The present invention is about a kind of light source module (Light Source Module), especially in regard to a kind of light source module with preferable bright dipping benefit.
Background technology
Flourish along with the plane display technique; (liquid crystal display LCD) becomes the main flow of display technique to LCD gradually, and it is used in the middle of the daily life at large; And replaced conventional cathode ray tube (cathode ray tube, CRT).Because the liquid crystal panel in the LCD can be not luminous voluntarily, therefore need to adopt light source module that backlight is provided.Light source module can be divided into directly-down light source module and side incident type light source module according to the ornaments position of luminescence component; Wherein side incident type light source module can be the key factor that forms area source from the photoconduction of side to the front to be that it has LGP.
Figure 1A is the vertical view of existing a kind of side incident type light source module, and Figure 1B is the cut-away view along the light source module shown in the AA ' line of Figure 1A.Please be simultaneously with reference to Figure 1A and Figure 1B, light source module 100 comprises a light source 110, a LGP 120, a reflector plate 130 and an optical diffusion sheet 140.LGP 120 has a upper surface 122, a lower surface 124 with respect to exiting surface 122, and one connect upper surface 122 and lower surface 124 incidence surface 126, wherein upper surface 122 and lower surface 124 are for example all perpendicular to incidence surface 126.
In light source module 100, incidence surface 126 bypass of LGP 120 are standing to be equipped with light source 110, and wherein light source 110 can be light emitting diode or cathode fluorescent tube.And the lower surface 124 of LGP 120 has a plurality of lug bosses 121, and wherein each lug boss 121 can have equal height.From the light beam 112 of light source 110 through incidence surface 126 and after getting into LGP 120; Because of the total reflection phenomenon of above-mentioned lug boss 121 broken beams 112 in LGP 120; Make the light beam 112 in the LGP 120 be able to be guided, and can leave LGP 120 by upper surface 122 outgoing equably.
Generally speaking; Light source module 100 can dispose the lower surface 124 of a reflector plate 130 in LGP 120 usually; So that the light beam 112 that part is left through lower surface 124 is able to be reflected and transmits back in the LGP 120 again, use the backlight illumination that promotes light source module 100.In addition, in order to promote the light uniformity coefficient of light source module 100 integral body, light source module 100 also can be provided with the upper surface 122 of an optical diffusion sheet 140 in LGP 120, to promote the even back degree.
Yet; Light source module 100 adopts the light reflection structure (being lug boss 121) of the LGP shown in Figure 1B; For still restriction to some extent of its whole backlight illumination gain; Therefore, the microstructure that how to design on a kind of LGP is target that each tame manufacturer was made great efforts so that the backlight illumination that further promotes light source module is real.
Summary of the invention
The present invention provides a kind of light source module, has preferable bright dipping benefit.
The present invention proposes a kind of light source module, and this light source module comprises a LGP and a light supply apparatus.LGP has an exiting surface, a light reflection surface relative with exiting surface, and is connected at least one incidence surface between exiting surface and the light reflection surface, and the light reflection surface of LGP is formed with a plurality of light reflection structures.Each light reflection structure comprises and intersecting or the sub patterns of tangent plural sealing that each sub patterns is a dot pattern, and wantonly two adjacent dot patterns intersect or tangent, and each sub patterns caves in or protrudes from exiting surface.Light supply apparatus is corresponding to the incidence surface setting.Light supply apparatus provides a light to get into LGP by incidence surface, and by after one of them light reflection structure change direction (redirect) on the light reflection surface, penetrates LGP by exiting surface again.
In one embodiment of this invention, each dot pattern is the pothole that is positioned on the light reflection surface, and the edge of each dot pattern protrudes from light reflection surface.
In one embodiment of this invention, each dot pattern is a convexity that is positioned on the light reflection surface, and the marginal trough of each dot pattern is in light reflection surface.
In one embodiment of this invention, form these dot patterns of each light reflection structure and arrange along a straight line, and the bearing of trend of straight line is in fact perpendicular to the direct of travel of light.
In one embodiment of this invention, these dot patterns of each light reflection structure are arrayed.
In one embodiment of this invention, each dot pattern is circular.
In one embodiment of this invention, each light reflection structure more comprises a plurality of inner patterns, lays respectively in these sub patterns each inner pattern protrusion or be depressed in light reflection surface.
In one embodiment of this invention, each inner pattern is circular.
In one embodiment of this invention, the quantity of these sub patterns in each light reflection structure is to increase gradually along the direction away from light supply apparatus.
In one embodiment of this invention, the spacing of wantonly two adjacent light reflection structures is to diminish gradually along the direction away from light supply apparatus.
In one embodiment of this invention, each light reflection structure also comprises the base pattern of a sealing, and base pattern caves in or protrudes from light reflection surface, and contains the couplet collection zone of these sub patterns in the said light reflection structure.
In one embodiment of this invention, base pattern is a rectangle.
The beneficial effect of the embodiment of the invention is; Light supply apparatus of the present invention utilizes has a plurality of light reflection structures on the LGP; And each light reflection structure comprises the light action district of a sealing and a plurality of convexities that are positioned at the light action district; Therefore when light was passed to the light reflection structure that is positioned on the light reflection surface in LGP, light can be penetrated LGP via exiting surface by protruding reflection, thereby can improve the bright dipping benefit.
Description of drawings
Figure 1A is the vertical view of existing a kind of side incident type light source module.
Figure 1B is the cut-away view along the light source module shown in the AA ' line of Figure 1A.
Fig. 2 A is the schematic top plan view of the light source module of one embodiment of the invention.
Fig. 2 B is the diagrammatic cross-section along the light source module shown in the BB ' line of Fig. 2 A.
Fig. 2 C is the diagrammatic cross-section along the light source module shown in the CC ' line of Fig. 2 A.
Fig. 3 A is the diagrammatic cross-section along the light source module of another example shown in the BB ' line of Fig. 2 A.
Fig. 3 B is the diagrammatic cross-section along the light source module of another example shown in the CC ' line of Fig. 2 A.
Fig. 4 is the local overlapping synoptic diagram of the dot pattern of light reflection structure among Fig. 2 A.
The arrangement that Fig. 5～Fig. 7 is respectively light reflection structure in the light source module and the quantity of dot pattern adopt the schematic top plan view of different examples.
Fig. 8 A～Fig. 8 E is respectively the synoptic diagram that light reflection structure among Fig. 2 A adopts different examples.
[primary clustering symbol description]
100,200: light source module
110: light source
112: light beam
120,210: LGP
121: lug boss
122: upper surface
124: lower surface
126: incidence surface
130,230: reflector plate
140,240: optical diffusion sheet
220: light supply apparatus
212: exiting surface
214: light reflection surface
216: incidence surface
213: light reflection structure
213a: light action district
213b: convexity
215: dot pattern
215a: protuberance
215b: edge
217: groove
219: inner pattern
215c: depressed part
222: light emitting diode
M1: join the collection zone
M2: intersection area
L1: light
P1: bearing of trend
X, Y: axle
R: radius
D: path length
D1, d2: spacing
Embodiment
Fig. 2 A is the schematic top plan view of the light source module of one embodiment of the invention; Fig. 2 B is the diagrammatic cross-section along the light source module shown in the BB ' line of Fig. 2 A; And Fig. 2 C is the diagrammatic cross-section along the light source module shown in the CC ' line of Fig. 2 A; Wherein explanation for ease, Fig. 2 A only illustrates light supply apparatus and LGP and omits and be positioned at possible optical component about the LGP.Please be simultaneously with reference to figure 2A, Fig. 2 B and Fig. 2 C, the light source module 200 of present embodiment comprises a LGP 210 and a light supply apparatus 220.
LGP 210 has an exiting surface 212, a light reflection surface 214 relative with exiting surface 212; And be connected at least one incidence surface 216 between exiting surface 212 and the light reflection surface 214, and LGP 210 has a plurality of light reflection structures 213 on light reflection surface 214.Each light reflection structure 213 comprises light action district 213a and a plurality of protruding 213b that is positioned at light action district 213a of a sealing, light action district 213a and light reflection surface 214 coplane not wherein, and these protruding 213b extend outside LGP 210.In the present embodiment, each light reflection structure 213 is to be made up of 215 of a plurality of dot patterns, and two adjacent dot patterns 215 can be local overlapping or tangent, shown in Fig. 2 A.By another angle, each light reflection structure 213 can be the sub patterns that includes crossing or tangent plural sealing, and wherein each sub patterns can be considered each above-mentioned dot pattern 215.In other words, the sub patterns in each light reflection structure 213 can be depression or protrude from exiting surface 212 that look closely its formation method and decide, wherein associated description can be with reference to the explanation in the subsequent paragraph.In addition, described each dot pattern 215 of present embodiment can equivalence be regarded as above-mentioned each sub patterns, and its associated description can be with reference to following explanation.
In the example of Fig. 2 B, each dot pattern 215 for example is a convexity that is positioned on the light reflection surface 214, and each dot pattern 215 can include protuberance 215a and edge 215b.In detail, protuberance 215a is positioned on the light reflection surface 214 and extension and protrude from light reflection surface 214 towards LGP 210 outside, therefore, protuberance 215a not with light reflection surface 214 coplanes, wherein so-called coplane is meant copline.Because each dot pattern 215 is bulge-structures, so the edge 215b of each dot pattern 215 just can be depressed in light reflection surface 214.In addition; In each light reflection structure 213; The couplet of these local overlapping or tangent dot patterns 215 collects the light action district 213a that regional M1 (also can with reference to outer peripheral areas M1 shown in Figure 4) can form light reflection structure 213; The edge 215b of the intersection area M2 of these dot patterns 215 then can form a plurality of grooves 217 that separate these protruding 213b, shown in Fig. 2 C.
In detail; The mode that forms above-mentioned protuberance 215a structure can be to use a laser beam (not shown) to get ready on a steel plate (not shown) earlier; Wherein the position of each radium-shine luminous point is same as the distribution shown in Fig. 2 A, that is to say that the radium-shine luminous point of getting ready on steel plate can be local mutually overlapping or tangent.Then, just can form the LGP 210 shown in Fig. 2 B and Fig. 2 C after again steel mould being printed on a light guide base material.Here need to prove; Because the laser beam of beating on steel plate is to adopt the mode of radium-shine ablation; Therefore, be formed at the just crateriform structure of type of having of pattern on the steel plate, thus; After steel mould was printed on light guide base material, the edge 215b that just can form Fig. 2 B dotted pattern 215 was depressed in the structure of light reflection surface 214.
Yet; In other example; The production method of LGP 210 also can be on a light guide base material, directly to use laser beam to carry out the aforesaid processing procedure of getting ready, and thus, formed dot pattern 215 just can be a depressed part 215c who is positioned on the light reflection surface 214 on the LGP 210; The edge 215b of each dot pattern 215 then can protrude from light reflection surface 214; Shown in Fig. 3 A and Fig. 3 B, wherein Fig. 3 A is the diagrammatic cross-section along the light source module of another example shown in the BB ' line of Fig. 2 A, and Fig. 3 B is the diagrammatic cross-section along the light source module of another example shown in the CC ' line of Fig. 2 A.
In the example of Fig. 3 A and Fig. 3 B; Owing to be to use laser beam directly to get ready on the light reflection surface 214 of light guide base plate; Therefore the dot pattern 215 in its formed each light reflection structure 213 just can be considered the pothole that is positioned on the light reflection surface 214, and the edge of each dot pattern 215 can protrude from light reflection surface 214.In addition; The couplet of local overlapping or tangent dot pattern 215 collects regional M1 and can form aforesaid light action district 213a in each light reflection structure 213, and the edge 215b of the intersection area M2 of these local overlapping or tangent dot patterns 215 (also can with reference to regional M2 shown in Figure 4) can be formed with a plurality of protruding 213b structures.
Likewise; Because the laser beam of directly beating on light guide base material is to adopt the mode of radium-shine ablation; Therefore, just be formed at the crateriform structure of pattern type of having on the LGP 210, can protrude from the structure of light reflection surface 214 like the edge 215b of Fig. 3 A dotted pattern 215.It should be noted that; The mode that forms present embodiment light reflection structure 213 might not adopt the mode of radium-shine ablation; Also can adopt general radium-shine processing procedure, general etch process or other suitable processing procedure; Thus, just can not form the structure that the edge 215b of the dot pattern 215 among Fig. 2 B can be depressed in light reflection surface 214, or form the structure that can protrude from light reflection surface 214 like the edge 215b of the dot pattern among Fig. 3 A 215.
In addition, light supply apparatus 220 is provided with corresponding to the incidence surface 216 of LGP 210, shown in Fig. 2 A, Fig. 2 B and Fig. 3 A.Light supply apparatus 220 provides a light L1 to get into LGP 210 by incidence surface 216; And after the change of one of them light reflection structure 213 (as: protruding 213b) on the light reflection surface 214 direction; Penetrate LGP 210 by exiting surface 212 again, shown in Fig. 2 B and Fig. 3 B.In detail; Because each light reflection structure 213 on the LGP 210 is to be made up of the overlapping or tangent institute in a plurality of dot patterns 215 parts; Therefore when light L1 is passed to the light reflection structure 213 that is positioned on the light reflection surface 214 in LGP 210; Light L1 just can be penetrated LGP 210 via exiting surface 212 by protruding 213b total reflection at an easy rate, thereby can improve the bright dipping benefit.In addition, when the light L1 of part penetrated LGP 210 if penetrate light reflection surface 214, light source module 200 can be provided with a reflector plate 230 on light reflection surface 214, so that light L1 is transmitted back in the LGP 210, used the utilization factor that improves light.For example; After if light source module 200 adopts above-mentioned LGP 210; Can promote outside its whole aperture opening ratio; Also can promote its whole emitting brightness, wherein in experimental data, demonstrate light source module 200 if adopt above-mentionedly when having overlapping LGP 210 structures of a plurality of dot pattern 215, its whole emitting brightness is compared the LGP 120 of tradition shown in Figure 1A and can be promoted more than at least 10.8%.
In other words; Because light L1 can be changed direction and penetrate LGP 210 via exiting surface 212 by the dot pattern 215 local overlapping or tangent protruding 213b that constitute; Therefore, the LGP 210 of employing present embodiment can improve the bright dipping benefit of light source module 200 integral body.In the present embodiment, light supply apparatus 220, but is not limited thereto as illustrating with the light emitting diode 222 of a plurality of arrayed.In other embodiments, light supply apparatus 220 also can be to adopt cathode fluorescent tube or other suitable light source.
In the present embodiment, these dot patterns 215 of each light reflection structure 213 of above-mentioned composition are to arrange along a straight line, and the bearing of trend P1 of straight line is in fact perpendicular to the direct of travel of light L1, and meaning is that bearing of trend P1 for example is X-direction, shown in Fig. 2 A.
In addition, the 215 local overlapping degree of the dot pattern in the light reflection structure 213 will influence the gain of light that goes out that light source module 200 is provided to some extent.Below will be with Fig. 4 for illustrating; In the present embodiment; If dot pattern 215 is with circle for for example and have a radius r, and adjacent dot pattern 215 overlapping path length be defined as d, wherein path length is defined as the overlapping maximum length of two adjacent dot pattern 215 radiuses.If wantonly two adjacent dot patterns 215 parts are overlapping to be to drop in the scope of r/3＜d＜2r; Then 210 of LGPs can promote the whole bright dipping benefits of light source module 200 and just can have preferable performance; Otherwise if lap is less than r/3 when following, then the bright dipping benefit of 210 light source modules 200 that can promote of LGP comparatively speaking just can be less.
In the present embodiment; The overlapping degree of the dot pattern 215 in light reflection structure 213 can exert an influence to the bright dipping benefit of light source module 200, also can the bright dipping benefit of light source module 200 be influenced to some extent along the spacing d1 on the X-direction or along the spacing d2 on the Y direction between each light reflection structure 213.For example, in Fig. 2 A, for example be along with gradually little along the spacing d2 on the Y direction between each light reflection structure 213 away from the direction of light supply apparatus 220, like this, can make still can provide enough brightness from light supply apparatus 220 exiting surfaces 212 far away.In other words, if when LGP 210 adopts the distribution of the light reflection structure 213 shown in Fig. 2 A, can make light source module 200 have preferable whole bright dipping benefit and preferable outgoing light homogeneity.
In another example, the arrangement mode of the light reflection structure 213 on the LGP 210 also can be to adopt arrangement as shown in Figure 5.In Fig. 5, each light reflection structure 213 also can be gradually little along Y direction along the spacing d2 on the X-direction, and meaning is promptly away from the direction of light supply apparatus 220.Employing equally also can make light source module 200 have preferable whole bright dipping benefit and preferable outgoing light homogeneity like the arrangement of the light reflection structure 213 of Fig. 5.
In addition, in Fig. 2 and Fig. 5, the quantity of the dot pattern 215 of each light reflection structure 213 is all identical, and its change shape only is spacing d1, the d2 that changes between each light reflection structure.In another example, the quantity of the dot pattern 215 in the light reflection structure 213 also can be along with changing away from the direction of light source module, like Fig. 6 and shown in Figure 7.In Fig. 6; The quantity of the dot pattern 215 in each light reflection structure 213 is along with the direction away from light source module 220 increases gradually; And each light reflection structure 213 is to diminish gradually along the direction away from light supply apparatus 220 along the spacing d2 on the Y direction, and each light reflection structure 213 then is to diminish gradually along the direction away from light supply apparatus 220 along the spacing d1 on the X-direction.Fig. 7 is similar with the arrangement mode of the light reflection structure 213 of Fig. 6, and the two difference is that each light reflection structure 213 among Fig. 7 is fixing along the spacing d2 on the Y direction.Likewise, no matter the LGP 210 in the light source module 200 is the arrangement of adopting like the light reflection structure 213 of Fig. 6 or Fig. 7, all can make light source module 200 have preferable whole bright dipping benefit and preferable outgoing light homogeneity.
In the present embodiment; Be positioned at light reflection structure 213 on the light reflection surface 214 of LGP 210 except can adopting design like Fig. 2 A, Fig. 5, Fig. 6 and dot pattern 215 shown in Figure 7; It also can adopt the light reflection structure 213 shown in Fig. 8 A～Fig. 8 E; Wherein the production method of the light reflection structure 213 among Fig. 8 A～Fig. 8 E can adopt the mode of aforesaid radium-shine ablation, or adopts general radium-shine processing procedure or etch process.Below will distinguish the structure of the light reflection structure 213 among further explanatory drawings 8A～Fig. 8 E.
In Fig. 8 A, each light reflection structure 213 also can comprise a plurality of inner patterns 219, and wherein each inner pattern 219 lays respectively in the dot pattern 215, and the edge of each inner pattern 219 can protrude or be depressed in light reflection surface 214.Need to prove that inner pattern 219 is protrusions or is depressed in the mode that light reflection surface 214 can be depending on or used aforementioned formation dot pattern 215.For example, if dot pattern 215 is to adopt the mode of aforementioned steel plate press back to form, then inner pattern 219 also can be same as mode, or is to adopt other radium-shine processing procedure or etch process.In the present embodiment, the pattern of aforesaid inner pattern 219 can be a circle, but is not limited thereto.
In Fig. 8 B, each light reflection structure 213 also can comprise the base pattern 218 of a sealing, and wherein base pattern 218 can cave in or protrude from light reflection surface 214, and the couplet of containing the dot pattern 215 in the said light reflection structure 213 collects regional M1.Likewise, base pattern 218 is protrusions or is depressed in the mode that light reflection surface 214 can be depending on or used aforementioned formation dot pattern 215, repeats no more at this.In the present embodiment, the pattern of base pattern 218 can be a rectangle, but is not limited thereto.
From another angle, these protruding 213b of each light reflection structure 213 of Fig. 8 B can be made up of 215 of a plurality of dot patterns that are positioned at light action district 213a.For example, if when the light reflection structure 213 of Fig. 8 B is the production method that adopts shown in Fig. 3 A, then each dot pattern 215 is depressed part 215c that are positioned on the light reflection surface 214, and the edge 215b of each dot pattern 215 protrudes from light reflection surface 214; Otherwise when if the light reflection structure 213 of Fig. 8 B is the production method that adopts shown in Fig. 2 B, 215 of each dot patterns are protuberance 215a who is positioned on the light reflection surface 214, and the edge 215b of each dot pattern 215 is depressed in light reflection surface 214.In addition, if add the design of the mentioned inside pattern 219 of Fig. 8 A in the light reflection structure 213 in Fig. 8 B, then can form the light reflection structure 213 shown in Fig. 8 C.
In addition, the light reflection structure 213 of Fig. 8 D is similar with the light reflection structure 213 of Fig. 8 B, and the two difference is that wantonly two dot patterns 215 among Fig. 8 D are adjacent and tangent.The light reflection structure 213 of Fig. 8 E then is similar with the light reflection structure 213 of Fig. 8 D, and the dot pattern 215 of Fig. 8 E is to present arrayed.In light source module 200; Light reflection structure 213 on the LGP 210 can have the aforementioned mentioned advantage except adopting like the design of Fig. 2 A, Fig. 5, Fig. 6 and dot pattern 215 shown in Figure 7; If light reflection structure 213 adopts the structure of Fig. 8 A～Fig. 8 E, also can provide light source module whole bright dipping benefit.
In the present embodiment, light source module 200 also can include an optical diffusion sheet 240, be disposed on the exiting surface 212 of LGP 210, like this, the light that provided of homogenising light source module 200 further.
In sum, light source module of the present invention has advantage at least.At first; LGP has a plurality of light reflection structures on light reflection surface; And each light reflection structure comprises the light action district of a sealing and a plurality of convexities that are positioned at the light action district; Therefore when light was passed to the light reflection structure that is positioned on the light reflection surface in LGP, light can be penetrated LGP via exiting surface by protruding reflection, thereby can improve the bright dipping benefit.By another angle; Because each light reflection structure comprises the sub patterns of crossing or tangent plural sealing; And each sub patterns can cave in or protrude from exiting surface; Therefore light is being changed direction and after via exiting surface ejaculation LGP, can improve the whole bright dipping benefit of LGP by light reflection structure.
In addition, through designing spacing between each light reflection structure, also can make outgoing in the light of LGP homogenising more except promoting the going out the gain of light of LGP further.In addition, suitably design the number change of the dot pattern in each light reflection structure, as: the direction away from light supply apparatus becomes many gradually, also can reach the effect that is lifted out the gain of light and homogenising emergent ray.
Moreover light reflection structure also can be to adopt other suitable pattern in the light action district, to form a plurality of convexities, so also can help the lifting of bright dipping benefit.In addition, light source module can be provided with a reflector plate on light reflection surface, penetrates the light transmission of LGP penetrating light reflection surface and returns in the LGP, uses the utilization factor that improves light.
The above content; Be merely preferred embodiment of the present invention; When not limiting the scope that the present invention implements with this, the simple equivalent of promptly doing according to claim of the present invention and invention description generally changes and modifies, and all still belongs in the scope that patent of the present invention contains.Arbitrary embodiment of the present invention in addition or claim must not reached whole purposes or advantage or the characteristics that the present invention discloses.In addition, summary part and title only are the usefulness that is used for assisting the patent document search, are not to be used for limiting interest field of the present invention.
Claims (12)
1. a light source module is characterized in that, said light source module comprises:
One LGP; Said LGP has an exiting surface, a light reflection surface relative with said exiting surface; And be connected at least one incidence surface between said exiting surface and the said light reflection surface; And the said light reflection surface of said LGP is formed with a plurality of light reflection structures, and each light reflection structure comprises the sub patterns of crossing or tangent plural sealing, and each sub patterns is a dot pattern; And wantonly two adjacent dot patterns intersect or are tangent, and said sub patterns depression or protrude from said exiting surface; And
One light supply apparatus; Corresponding to said incidence surface setting; Said light supply apparatus provides a light to get into said LGP by said incidence surface, and by after one of them light reflection structure change direction on the said light reflection surface, penetrates said LGP by said exiting surface again.
2. light source module according to claim 1 is characterized in that, each dot pattern is the pothole that is positioned on the said light reflection surface, and the edge of each dot pattern protrudes from said light reflection surface.
3. light source module according to claim 1 is characterized in that, each dot pattern is a convexity that is positioned on the said light reflection surface, and the marginal trough of each dot pattern is in said light reflection surface.
4. light source module according to claim 1 is characterized in that, form the said dot pattern of each light reflection structure and arrange along a straight line, and the bearing of trend of said straight line is in fact perpendicular to the direct of travel of said light.
5. light source module according to claim 1 is characterized in that, the said dot pattern of each light reflection structure is arrayed.
6. light source module according to claim 1 is characterized in that, said dot pattern is circular.
7. light source module according to claim 1 is characterized in that, each light reflection structure also comprises a plurality of inner patterns, lays respectively in the said sub patterns each inner pattern protrusion or be depressed in said light reflection surface.
8. light source module according to claim 7 is characterized in that, said inner pattern is circular.
9. light source module according to claim 1 is characterized in that, the quantity of the said sub patterns in each light reflection structure is to increase gradually along the direction away from said light supply apparatus.
10. light source module according to claim 9 is characterized in that, the spacing of wantonly two adjacent light reflection structures is to diminish gradually along the direction away from said light supply apparatus.
11. light source module according to claim 1; It is characterized in that; Each light reflection structure also comprises the base pattern of a sealing, and said base pattern caves in or protrudes from said light reflection surface, and contains the couplet collection zone of the said sub patterns in the said light reflection structure.
12. light source module according to claim 11 is characterized in that, said base pattern is a rectangle.
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| CN2011101604768A CN102221156B (en) | 2010-04-06 | 2010-04-06 | Light source module |
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| CN2011101604768A CN102221156B (en) | 2010-04-06 | 2010-04-06 | Light source module |
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| CN2010101594314A Division CN101858508B (en) | 2010-04-06 | 2010-04-06 | Light source module |
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| CN102221156B true CN102221156B (en) | 2012-11-14 |
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| TWI518386B (en) * | 2014-04-02 | 2016-01-21 | 群創光電股份有限公司 | Display device |
| KR20160022212A (en) * | 2014-08-18 | 2016-02-29 | (주)뉴옵틱스 | Light guide plate, backlight unit and display device having the same |
| CN104375235B (en) * | 2014-11-26 | 2017-03-08 | 深圳市华星光电技术有限公司 | Light guide plate, backlight module and display |
| CN104459871B (en) | 2014-12-10 | 2017-12-01 | 深圳市华星光电技术有限公司 | Light guide plate, backlight module and display device |
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| CN2457630Y (en) * | 2000-08-17 | 2001-10-31 | 中强光电股份有限公司 | Back light device |
| TWI251104B (en) * | 2004-06-07 | 2006-03-11 | Nano Prec Corp | Back lighting apparatus |
| KR100658163B1 (en) * | 2005-04-15 | 2006-12-15 | 한국생산기술연구원 | Manufacturing method of continuous microlens using reflow process and it's application to Light Guide Plate |
| KR20070033137A (en) * | 2005-09-21 | 2007-03-26 | 삼성전자주식회사 | Optical plate, mathod of manufacturing thereof and display apparatus having the same |
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