CN101858508A - Light source module - Google Patents
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- CN101858508A CN101858508A CN 201010159431 CN201010159431A CN101858508A CN 101858508 A CN101858508 A CN 101858508A CN 201010159431 CN201010159431 CN 201010159431 CN 201010159431 A CN201010159431 A CN 201010159431A CN 101858508 A CN101858508 A CN 101858508A
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Abstract
The embodiment of the invention provides a light source module comprising a light guiding board and a light source device. The light guiding board is provided with a light emergent face, a light reflecting face opposite to the light emergent face and at least one light incident face connected between the light emergent face and the light reflecting face. The light guiding board is provided with a plurality of light reflecting structures on the light reflecting face. Each light reflecting structure comprises a closed light action zone and a plurality of bulges positioned in the light action zone, wherein the light action zone and the light reflecting face are not coplanar, and the bulges extend towards the outside of the light guiding board. The light source device corresponds to the light incident face. The light source device supplies a light ray which enters the light guiding board from the light incident face and then is ejected out of the light guiding board through the light emergent face after the direction of the light ray is changed by one of bulges on the light reflecting face. By adopting the embodiment of the invention, a better light emergent effect can be realized.
Description
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 also refer 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 the incidence surface 126 of a connection upper surface 122 and lower surface 124, and 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 by incidence surface 126 and after entering LGP 120, because of the total reflection phenomenon of above-mentioned lug boss 121 broken beams 112 in LGP 120, light beam 112 in the LGP 120 is guided, and can leaves 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 by lower surface 124 is 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 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 micro-structural 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 invention provides a kind of light source module, have 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 LGP has a plurality of light reflection structures on light reflection surface.Each light reflection structure comprises the light action district of a sealing and a plurality of projectioies that are positioned at the light action district, light action district and light reflection surface coplane not wherein, and these projectioies are extended outside LGP.Light supply apparatus is corresponding to the incidence surface setting.Light supply apparatus provides a light to enter LGP by incidence surface, and by after one of them the projection change direction (redirect) on the light reflection surface, penetrates LGP by exiting surface again.
In one embodiment of this invention, each light reflection structure is made of a plurality of dot pattern, and wantonly two adjacent dot pattern parts are overlapping.
In one embodiment of this invention, each dot pattern is a depressed part that is positioned on the light reflection surface, and the edge of each dot pattern protrudes from light reflection surface.The connection collection zone of these dot patterns forms the light action district, and the edge of the intersection area of these dot patterns forms these projectioies.
In one embodiment of this invention, each dot pattern is a protuberance that is positioned on the light reflection surface, and the marginal trough of each dot pattern is in light reflection surface.The connection collection zone of these dot patterns forms the light action district, and the edge of the intersection area of these dot patterns forms a plurality of grooves that separate these projectioies.
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, each dot pattern is circular.
In one embodiment of this invention, each light reflection structure also comprises a plurality of inner patterns, lays respectively in these dot patterns, and the edge of each inner pattern protrudes or is 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 dot 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, these projectioies of each light reflection structure are made of a plurality of dot pattern that is positioned at the light action district, and each dot pattern is a depressed part 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, wantonly two adjacent dot pattern parts are overlapping, and the edge of the connection collection of these dot patterns zone and intersection area forms these projectioies.
In one embodiment of this invention, each light reflection structure more comprises a plurality of inner patterns, lay respectively in these dot patterns, and the edge of each inner pattern protrudes or is depressed in light reflection surface.
In one embodiment of this invention, wantonly two dot patterns are adjacent and non-intersect.
In one embodiment of this invention, these dot patterns in each light reflection structure are arranged 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 in each light reflection structure are arrayed.
In one embodiment of this invention, these projectioies of each light reflection structure are made of a plurality of dot pattern that is positioned at the light action district, and each dot pattern is a protuberance 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, wantonly two adjacent dot pattern parts are overlapping, and the connection collection zone of these dot patterns forms with the edge of intersection area and separates a plurality of grooves of these projectioies.
In one embodiment of this invention, each light reflection structure more comprises a plurality of inner patterns, lays respectively in these dot patterns, and the edge of each inner pattern protrudes or is depressed in light reflection surface.
In one embodiment of this invention, wantonly two dot patterns are adjacent and non-intersect.
In one embodiment of this invention, these dot patterns in each light reflection structure are arranged 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 in each light reflection structure are arrayed.
The present invention proposes a kind of light source module in addition, 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 pattern of tangent plural sealing, and each sub pattern depression or protrude from exiting surface.Light supply apparatus is corresponding to the incidence surface setting.Light supply apparatus provides a light to enter 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 sub pattern is a dot pattern, and wantonly two adjacent dot patterns intersect or tangent.
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 projection 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 pattern, and each inner pattern protrudes or is 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 pattern 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 connection collection zone of these sub pattern in the described 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 projectioies that are positioned at the light action district, therefore when light is 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 the projection 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 generalized section along the light source module shown in the BB ' line of Fig. 2 A.
Fig. 2 C is the generalized section along the light source module shown in the CC ' line of Fig. 2 A.
Fig. 3 A is the generalized section along the light source module of another example shown in the BB ' line of Fig. 2 A.
Fig. 3 B is the generalized section along the light source module of another example shown in the CC ' line of Fig. 2 A.
Fig. 4 is the local overlapping schematic 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 schematic 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: projection
215: dot pattern
215a: protuberance
215b: edge
217: groove
219: inner pattern
215c: depressed part
222: light emitting diode
M1: connection collection zone
M2: intersection area
L1: light
P1: bearing of trend
X, Y: axle
R: radius
D: path length
D1, d2: spacing
The specific 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 generalized section along the light source module shown in the BB ' line of Fig. 2 A, and Fig. 2 C is the generalized section along the light source module shown in the CC ' line of Fig. 2 A, wherein for convenience of description, Fig. 2 A only illustrates light supply apparatus and LGP and omits and be positioned at LGP possible optical component up and down.Please also refer to Fig. 2 A, 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 the light action district 213a of a sealing and a plurality of protruding 213b that is positioned at light action district 213a, 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 made of a plurality of dot pattern 215, 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 pattern that includes crossing or tangent plural sealing, and wherein each sub pattern can be considered each above-mentioned dot pattern 215.In other words, the sub pattern 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 considered as above-mentioned each sub pattern, 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 projection that is positioned on the light reflection surface 214, and each dot pattern 215 can include protuberance 215a and edge 215b.Specifically, protuberance 215a is positioned on the light reflection surface 214 and extends outside LGP 210 and protrude from light reflection surface 214, 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 connection 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.
Specifically, 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 again steel mould is printed on the LGP 210 that can form after the light guide base material shown in Fig. 2 B and Fig. 2 C.Here need to prove, because the laser beam of beating on steel plate is the mode that adopts radium-shine ablation, therefore, the pattern that is formed on the steel plate just has the crateriform structure of class, thus, after steel mould was printed on light guide base material, the edge 215b that just can form dot pattern 215 among Fig. 2 B was depressed in the structure of light reflection surface 214.
Yet, in other example, the production method of LGP 210 also can be directly to use laser beam to carry out the aforesaid processing procedure of getting ready on a light guide base material, 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 generalized section along the light source module of another example shown in the BB ' line of Fig. 2 A, and Fig. 3 B is the generalized 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 connection 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.
Similarly, because the laser beam of directly beating on light guide base material is the mode that adopts radium-shine ablation, therefore, just the pattern that is formed on the LGP 210 has the crateriform structure of class, can protrude from the structure of light reflection surface 214 as the edge 215b of dot pattern 215 among Fig. 3 A.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, the edge 215b that just can not form the dot pattern 215 among Fig. 2 B can be depressed in the structure of light reflection surface 214, or forms the structure that can protrude from light reflection surface 214 as 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 enter 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.Specifically, because each light reflection structure 213 on the LGP 210 is to be made 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 rate 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 demonstrate light source module 200 if adopt above-mentionedly when having overlapping LGP 210 structures of a plurality of dot pattern 215 in experimental data, 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 illustrates as an example with the light emitting diode 222 of a plurality of arrayed, but is not limited thereto.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 to some extent to the gain of light that goes out that light source module 200 is provided.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 consecutive points shape 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 the LGPs bright dipping benefit that can promote light source module 200 integral body 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, between each light reflection structure 213 along the spacing d2 on the Y direction for example be along with away from the direction of light supply apparatus 220 and gradually little, 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 the arrangement of adopting 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 as 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, as 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 to 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.Similarly, no matter the LGP 210 in the light source module 200 is the arrangement of adopting as 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 as 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 connection of containing the dot pattern 215 in the described light reflection structure 213 collects regional M1.Similarly, 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, do not repeat them here.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 of a plurality of dot patterns 215 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 to 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 to 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 as 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 the bright dipping benefit of light source module integral body.
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 following 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 projectioies that are positioned at the light action district, therefore when light is 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 the projection reflection, thereby can improve the bright dipping benefit.By another angle, because each light reflection structure comprises the sub pattern of crossing or tangent plural sealing, and each sub pattern can cave in or protrude from exiting surface, therefore light is being changed direction and after via exiting surface ejaculation LGP, can improve the bright dipping benefit of LGP integral body by light reflection structure.
In addition, by 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 to form a plurality of projectioies in the light action district, 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 rate that improves light.
Above said content, it only is preferred embodiment of the present invention, when not limiting scope of the invention process with this, promptly the simple equivalent of being done according to the present patent application claim and invention description content 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 the disclosed whole purposes of the present invention or advantage or characteristics.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 (35)
1. a light source module is characterized in that, described light source module comprises:
One LGP, described LGP has an exiting surface, a light reflection surface relative with described exiting surface, and be connected at least one incidence surface between described exiting surface and the described light reflection surface, and described LGP has a plurality of light reflection structures on described light reflection surface, each light reflection structure comprises the light action district of a sealing and a plurality of projectioies that are positioned at described light action district, wherein said light action district and described light reflection surface be coplane not, and described projection is extended outside described LGP; And
One light supply apparatus, corresponding to described incidence surface setting, described light supply apparatus provides a light to enter described LGP by described incidence surface, and by after one of them the projection change direction on the described light reflection surface, penetrates described LGP by described exiting surface again.
2. light source module according to claim 1 is characterized in that each light reflection structure is made of a plurality of dot pattern, and wantonly two adjacent dot pattern parts are overlapping.
3. light source module according to claim 2, it is characterized in that, each dot pattern is a depressed part that is positioned on the described light reflection surface, and the edge of each dot pattern protrudes from described light reflection surface, the connection collection zone of described dot pattern forms described light action district, and the edge of the intersection area of described dot pattern forms described projection.
4. light source module according to claim 2, it is characterized in that, each dot pattern is a protuberance that is positioned on the described light reflection surface, and the marginal trough of each dot pattern is in described light reflection surface, the connection collection zone of described dot pattern forms described light action district, and the edge of the intersection area of described dot pattern forms a plurality of grooves that separate described projection.
5. light source module according to claim 2 is characterized in that, form the described dot pattern of each light reflection structure and arrange along a straight line, and the bearing of trend of described straight line is in fact perpendicular to the direct of travel of described light.
6. light source module according to claim 2 is characterized in that, described dot pattern is circular.
7. light source module according to claim 2 is characterized in that, each light reflection structure also comprises a plurality of inner patterns, lays respectively in the described dot pattern, and the edge of each inner pattern protrudes or is depressed in described light reflection surface.
8. light source module according to claim 7 is characterized in that, described inner pattern is circular.
9. light source module according to claim 1 is characterized in that, the quantity of the described dot pattern in each light reflection structure is to increase gradually along the direction away from described 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 described light supply apparatus.
11. light source module according to claim 1, it is characterized in that, the described projection of each light reflection structure is made of a plurality of dot pattern that is positioned at described light action district, each dot pattern is a depressed part that is positioned on the described light reflection surface, and the edge of each dot pattern protrudes from described light reflection surface.
12. light source module according to claim 11 is characterized in that, wantonly two adjacent dot pattern parts are overlapping, and the edge of the connection collection of described dot pattern zone and intersection area forms described projection.
13. light source module according to claim 11 is characterized in that, each light reflection structure also comprises a plurality of inner patterns, lays respectively in the described dot pattern, and the edge of each inner pattern protrudes or is depressed in described light reflection surface.
14. light source module according to claim 11 is characterized in that, wantonly two dot patterns are adjacent and non-intersect.
15. light source module according to claim 11 is characterized in that, the described dot pattern in each light reflection structure is arranged along a straight line, and the bearing of trend of described straight line is in fact perpendicular to the direct of travel of described light.
16. light source module according to claim 11 is characterized in that, the described dot pattern in each light reflection structure is arrayed.
17. light source module according to claim 1, it is characterized in that, the described projection of each light reflection structure is made of a plurality of dot pattern that is positioned at described light action district, each dot pattern is a protuberance that is positioned on the described light reflection surface, and the marginal trough of each dot pattern is in described light reflection surface.
18. light source module according to claim 17 is characterized in that, wantonly two adjacent dot pattern parts are overlapping, and the connection collection zone of described dot pattern forms with the edge of intersection area and separates a plurality of grooves of described projection.
19. light source module according to claim 17 is characterized in that, each light reflection structure also comprises a plurality of inner patterns, lays respectively in the described dot pattern, and the edge of each inner pattern protrudes or is depressed in described light reflection surface.
20. light source module according to claim 17 is characterized in that, wantonly two dot patterns are adjacent and non-intersect.
21. light source module according to claim 17 is characterized in that, the described dot pattern in each light reflection structure is arranged along a straight line, and the bearing of trend of described straight line is in fact perpendicular to the direct of travel of described light.
22. light source module according to claim 17 is characterized in that, the described dot pattern in each light reflection structure is arrayed.
23. a light source module is characterized in that, described light source module comprises:
One LGP, described LGP has an exiting surface, a light reflection surface relative with described exiting surface, and be connected at least one incidence surface between described exiting surface and the described light reflection surface, and the described light reflection surface of described LGP is formed with a plurality of light reflection structures, each light reflection structure comprises and intersecting or the sub pattern of tangent plural sealing, and described sub pattern depression or protrude from described exiting surface; And
One light supply apparatus, corresponding to described incidence surface setting, described light supply apparatus provides a light to enter described LGP by described incidence surface, and by after one of them light reflection structure change direction on the described light reflection surface, penetrates described LGP by described exiting surface again.
24. light source module according to claim 23 is characterized in that, each sub pattern is a dot pattern, and wantonly two adjacent dot patterns intersect or tangent.
25. light source module according to claim 24 is characterized in that, each dot pattern is the pothole that is positioned on the described light reflection surface, and the edge of each dot pattern protrudes from described light reflection surface.
26. light source module according to claim 24 is characterized in that, each dot pattern is a projection that is positioned on the described light reflection surface, and the marginal trough of each dot pattern is in described light reflection surface.
27. light source module according to claim 24 is characterized in that, form the described dot pattern of each light reflection structure and arrange along a straight line, and the bearing of trend of described straight line is in fact perpendicular to the direct of travel of described light.
28. light source module according to claim 24 is characterized in that, the described dot pattern of each light reflection structure is arrayed.
29. light source module according to claim 24 is characterized in that, described dot pattern is circular.
30. light source module according to claim 23 is characterized in that, each light reflection structure also comprises a plurality of inner patterns, lays respectively in the described sub pattern, and each inner pattern protrudes or is depressed in described light reflection surface.
31. light source module according to claim 30 is characterized in that, described inner pattern is circular.
32. light source module according to claim 23 is characterized in that, the quantity of the described sub pattern in each light reflection structure is to increase gradually along the direction away from described light supply apparatus.
33. light source module according to claim 32 is characterized in that, the spacing of wantonly two adjacent light reflection structures is to diminish gradually along the direction away from described light supply apparatus.
34. light source module according to claim 23, it is characterized in that, each light reflection structure also comprises the base pattern of a sealing, and described base pattern caves in or protrudes from described light reflection surface, and contains the connection collection zone of the described sub pattern in the described light reflection structure.
35. light source module according to claim 34 is characterized in that, described base pattern is a rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101594314A CN101858508B (en) | 2010-04-06 | 2010-04-06 | Light source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101594314A CN101858508B (en) | 2010-04-06 | 2010-04-06 | Light source module |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110160478 Division CN102252230B (en) | 2010-04-06 | 2010-04-06 | Light source module |
| CN2011101604768A Division CN102221156B (en) | 2010-04-06 | 2010-04-06 | Light source module |
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| Publication Number | Publication Date |
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| CN101858508A true CN101858508A (en) | 2010-10-13 |
| CN101858508B CN101858508B (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101594314A Active CN101858508B (en) | 2010-04-06 | 2010-04-06 | Light source module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073091A (en) * | 2011-02-22 | 2011-05-25 | 苏州茂立光电科技有限公司 | Light guide plate, backlight module and display device thereof |
| CN108572411A (en) * | 2017-03-09 | 2018-09-25 | 先益电子工业股份有限公司 | Light guide plate, the mode device of moulding light guide plate and its manufacturing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2496052Y (en) * | 2001-04-13 | 2002-06-19 | 宋义 | Improved, uniform and high efficiency side lighting type back light source |
| CN1542466A (en) * | 2003-05-01 | 2004-11-03 | 连营科技股份有限公司 | Light conducting plate structure |
| US20050270802A1 (en) * | 2004-06-07 | 2005-12-08 | Chien-Hung Hsu | Backlight apparatus |
-
2010
- 2010-04-06 CN CN2010101594314A patent/CN101858508B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2496052Y (en) * | 2001-04-13 | 2002-06-19 | 宋义 | Improved, uniform and high efficiency side lighting type back light source |
| CN1542466A (en) * | 2003-05-01 | 2004-11-03 | 连营科技股份有限公司 | Light conducting plate structure |
| US20050270802A1 (en) * | 2004-06-07 | 2005-12-08 | Chien-Hung Hsu | Backlight apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073091A (en) * | 2011-02-22 | 2011-05-25 | 苏州茂立光电科技有限公司 | Light guide plate, backlight module and display device thereof |
| CN108572411A (en) * | 2017-03-09 | 2018-09-25 | 先益电子工业股份有限公司 | Light guide plate, the mode device of moulding light guide plate and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101858508B (en) | 2011-09-14 |
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