CN101093315A - Area light source, and module of area light source - Google Patents
Area light source, and module of area light source Download PDFInfo
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- CN101093315A CN101093315A CNA2006100932571A CN200610093257A CN101093315A CN 101093315 A CN101093315 A CN 101093315A CN A2006100932571 A CNA2006100932571 A CN A2006100932571A CN 200610093257 A CN200610093257 A CN 200610093257A CN 101093315 A CN101093315 A CN 101093315A
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Abstract
A surface light source module is prepared for using LED component to provide light, forming light guide plate by a middle region and a edge region surrounding said middle region, setting both regions above LED component, arranging multiple first microstructure distributed at middle region and multiple second microstructure distributed in edge region, setting light reflection ability of the first microstructure to be greater than the second one and laying LED component under middle region of said light guide plate.
Description
Technical field
The invention relates to a kind of area source (plane light source), and particularly relevant for a kind of area source with light-emitting diode component (light emitting diode device).
Background technology
Because science and technology constantly promotes with progressive, the digital multimedia video epoch arrive, and also significantly promote for the demand of various videos and device for image.LCD with advantages such as high image quality, low consumpting power and low radiation has become the main product of monitor market, its light source then be adopt cathode fluorescent tube (Cold Cathode Fluorescence Lamp, CCFL).But the cathode fluorescent tube volume is bigger, and the color gamut that can provide and desirable not to the utmost, and mercuric composition will cause the pollution of environment in adding, also become the problem of whole world pay attention to day by day.Therefore, the potential environmental protection light source that develops into the new generation that replaces cathode fluorescent tube of light emitting diode.
Light emitting diode (Light Emitting Diode, LED) belong to a kind of compound semiconductor assembly, the material of its luminescence chip mainly is made up of III-V family chemical element, as: gallium phosphide (GaP), gallium arsenide (GaAs), gallium nitride compound semiconductors such as (GaN).These semiconductor materials have the characteristic that converts electrical energy into light, utilize these a little compound semiconductors are applied electric current, see through electron hole pair (Electron-Hole Pairs, EHP) combination, can transfer electric energy to luminous energy, and disengage, reach luminous effect with the form of photon (Photon).Because the luminescence phenomenon of light emitting diode is to belong to cold property luminous (luminescence), but not by adding thermoluminescence, thus the life-span of light emitting diode be more than 100,000 hours, and need not warm up the lamp time (idling time).In addition, light emitting diode has reaction velocity and (is about 10 soon
-9Second), volume is little, power-saving, pollute low (not containing mercury), fiduciary level height, be fit to advantages such as volume production, therefore its applicable field of institute is very extensive, as the lamp source of scanner, the backlight of LCD screen, outdoor display billboard or automobile-used light fixture and instrument panel or the like.
In addition, when a large amount of liftings of consumption electronic products demand, more very, especially the demand of liquid crystal display television (LCD TV) also significantly increases for large-scale liquid crystal indicator demand in recent years.Therefore, how seeking the LED surface light source of big light-emitting area, is the brightness of modular surface light source so as to increasing with the light emitting diode, has been current major issue.
Summary of the invention
The purpose of this invention is to provide a kind of area source, its utilization has first microstructure and second microstructure of different reflection potentiales (reflectivity), so that the light source homogenising that it provided.
Another object of the present invention provides a kind of modular surface light source, and it has first microstructure and combine with outside light guide plate with the area source of second microstructure aforementioned, to obtain bigger lighting area.
Another purpose of the present invention provides a kind of area source, and its utilization has supporting body, first microstructure and second microstructure of different reflection potentiales, so that the light source homogenising that it provided.
A further object of the present invention provides a kind of modular surface light source, its with aforementionedly have supporting body, first microstructure combines with outside light guide plate with the area source of second microstructure, to obtain bigger lighting area.
For reaching above-mentioned or other purpose, the present invention proposes a kind of area source, and it comprises a light-emitting diode component and a light guide plate.Light-emitting diode component is suitable for providing a light.Light guide plate has a zone line (middle) and the fringe region around zone line (periphery) that is positioned at light-emitting diode component top, and wherein light guide plate has a plurality of first microstructure and a plurality of second microstructures that are distributed in fringe region that are distributed in zone line.First microstructure is higher than the reflection potential of second microstructure for light for the reflection potential of light.Simultaneously, light-emitting diode component is configured under the light guide plate, and is positioned at light guide plate zone line below.
In one embodiment of this invention, the light-emitting diode component of above-mentioned area source comprises the white light emitting diode assembly.
In one embodiment of this invention, the light guide plate of above-mentioned area source has a upper surface and a lower surface, and wherein light-emitting diode component is configured on the lower surface of light guide plate, and first microstructure and second microstructure are distributed on the upper surface of light guide plate.
In one embodiment of this invention, first microstructure of above-mentioned area source and second microstructure can also be distributed on the lower surface of light guide plate.
In one embodiment of this invention, the upper surface of the light guide plate of above-mentioned area source is a pyramidal surface (pyramidical surface), and the lower surface of light guide plate is a plane.Wherein light-emitting diode component disposes in the plane, and is positioned at the below at the tip (pinnacle) on pyramidal surface, and first microstructure and second microstructure are distributed on the pyramidal surface (being upper surface).
In one embodiment of this invention, first microstructure of above-mentioned area source and second microstructure can also be distributed on the plane (being lower surface) of light guide plate.
In one embodiment of this invention, above-mentioned area source also comprises a reflector plate, and is configured in the light guide plate below.
In one embodiment of this invention, first microstructure of above-mentioned area source comprises the first annular prism with one heart a plurality of and that distribute from inside to outside, and second microstructure comprises a plurality of pyramids or hemisphere.
In one embodiment of this invention, first microstructure of above-mentioned area source comprises the first annular prism with one heart a plurality of and that distribute from inside to outside, and second microstructure comprises the second annular prism with one heart a plurality of and that distribute from inside to outside.
In one embodiment of this invention, the zone line of above-mentioned area source is a border circular areas.
In one embodiment of this invention, the radius of the border circular areas of above-mentioned area source is between 1 millimeter to 4 millimeters.
For reaching above-mentioned or other purpose, the present invention also proposes a kind of modular surface light source, and it comprises aforesaid area source and a plurality of outside light guide plate.Wherein, area source is arranged into an array, and a plurality of outside light guide plate is also arranged into an array, and is positioned on the area source.
In one embodiment of this invention, the area source of above-mentioned modular surface light source is configured in outside light guide plate and faces the position below that connects mutually.
In one embodiment of this invention, the area source of above-mentioned modular surface light source is embedded in the edge of outside light guide plate.
For reaching above-mentioned or other purpose, the present invention also proposes a kind of area source, and it comprises a supporting body, a plurality of light-emitting diode component and two light guide plate.Wherein, supporting body has one first loading end and one second loading end.A plurality of light-emitting diode components are configured on first loading end and second loading end, and wherein light-emitting diode component is suitable for providing a light.Two light guide plate, be configured in the supporting body both sides, and each light guide plate has the first area and the second area away from light-emitting diode component of a contiguous light-emitting diode component, wherein light guide plate has a plurality of first microstructure and a plurality of second microstructures that are distributed in second area that are distributed in the first area, and first microstructure is higher than the reflection potential of second microstructure for light for the reflection potential of light.
In one embodiment of this invention, the light-emitting diode component of above-mentioned area source comprises the white light emitting diode assembly.
In one embodiment of this invention, the light guide plate of above-mentioned area source has a upper surface, a lower surface and is connected in the incidence surface between upper surface and the lower surface, and light is suitable for entering the light guide plate from incidence surface.Wherein, first microstructure and second microstructure are distributed on the upper surface.
In one embodiment of this invention, first microstructure of above-mentioned area source and second microstructure can also be distributed on the lower surface.
In one embodiment of this invention, above-mentioned area source also comprises a reflector plate, and is configured in the light guide plate below.
In one embodiment of this invention, first microstructure of above-mentioned area source comprises a plurality of first bar shaped prisms parallel to each other, and second microstructure comprises a plurality of pyramids or hemisphere.
In one embodiment of this invention, first microstructure of above-mentioned area source comprises a plurality of first bar shaped prisms parallel to each other, and second microstructure comprises a plurality of second bar shaped prisms parallel to each other.
In one embodiment of this invention, the first area of above-mentioned area source is a rectangular area.
In one embodiment of this invention, the width of the rectangular area of above-mentioned area source is between 1 millimeter to several millimeters.
For reaching above-mentioned or other purpose, the present invention reintroduces a kind of modular surface light source, and it comprises aforesaid area source and a plurality of outside light guide plate.Wherein, area source is arranged into an array, and a plurality of outside light guide plate is also arranged into an array, and is positioned on the area source.
In one embodiment of this invention, the area source of above-mentioned modular surface light source is configured in outside light guide plate and faces the position below that connects mutually.
In one embodiment of this invention, the area source of above-mentioned modular surface light source is embedded in the edge of outside light guide plate.
Because light guide plate of the present invention has different microstructures, and the different microstructures on the zones of different of light guide plate have different reflection potentiales for light, therefore the present invention's light that light-emitting diode component is sent is not concentrated in the top of light-emitting diode component, and can be come by expansion uniformly, to obtain big and than uniform surface light source.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Figure 1 shows that the side schematic view of the area source of first embodiment of the invention.
Figure 2 shows that the side schematic view of another embodiment of the area source of first embodiment of the invention.
Figure 3 shows that the side schematic view of the area source of second embodiment of the invention.
Figure 4 shows that the side schematic view of another embodiment of the area source of second embodiment of the invention.
Fig. 5 A and Fig. 5 B are depicted as the partial schematic diagram of an embodiment of the described area source of Fig. 1 to Fig. 4.
Figure 6 shows that the partial schematic diagram of another embodiment of the described area source of Fig. 1 to Fig. 4.
Fig. 7 to Figure 11 is depicted as the light shape figure of the area source of the zone line with different size respectively.
Figure 12 shows that the side schematic view of the area source of third embodiment of the invention.
Figure 13 A and Figure 13 B are depicted as the partial schematic diagram of the microstructure of third embodiment of the invention area source.
Figure 14 shows that the partial schematic diagram of another embodiment of the microstructure of third embodiment of the invention area source.
Figure 15 A and Figure 15 B be depicted as fourth embodiment of the invention modular surface light source on look and schematic side view.
Figure 16 shows that another embodiment synoptic diagram of the modular surface light source of fourth embodiment of the invention.
Figure 17 shows that the another embodiment synoptic diagram of the modular surface light source of fourth embodiment of the invention.
The primary clustering symbol description
100,200,300,400,500: area source
102: light-emitting diode component
104a, 304a, 910: upper surface
104b, 304b, 920: lower surface
106,160a, 160b, 306: light guide plate
106a: zone line
106b: fringe region
108: reflector plate
110: the first microstructures
112: the first annular prisms
114: the second annular prisms
116: pyramid
118: hemisphere
120: the second microstructures
150: supporting body
152: the first loading ends
154: the second loading ends
162: the first bar shaped prisms
164: the second bar shaped prisms
310: pyramidal surface
320: the plane
330: the tip
600,700,800: modular surface light source
660,760,860: outside light guide plate
906a: first area
906b: second area
930: incidence surface
Embodiment
First embodiment
Figure 1 shows that the side schematic view of the area source of first embodiment of the invention.Please refer to Fig. 1, the area source 100 of present embodiment comprises a light-emitting diode component 102, a light guide plate 106 and a reflector plate 108.Wherein light-emitting diode component 102 is configured in light guide plate 106 times, and is suitable for providing a light, and this light-emitting diode component 102 can be the white light emitting diode assembly, also can be the light-emitting diode component of other coloured light.Light guide plate 106 has upper surface 104a and lower surface 104b, has the zone line 106a that is positioned at above the light-emitting diode component 102 on the upper surface 104a and around the fringe region 106b of zone line 106a, wherein the zone line 106a of light guide plate 106 is a border circular areas at present embodiment, but does not limit.Light guide plate 106 also has a plurality of first microstructures 110 and a plurality of second microstructure 120, first microstructure 110 is distributed in zone line 106a, second microstructure 120 then is distributed in fringe region 106b, and first microstructure 110 is higher than the reflection potential of second microstructure 120 for light for the reflection potential of light.In other words, first microstructure 110 can make most light total reflection, only allows the light of small part to appear, and can make the light total reflection of less ratio compared to first microstructure, 110, the second microstructures 120, and allows the light of higher rate to appear.In addition, reflector plate 108 is the belows that are configured in light guide plate 106, with will be from the light reflected back light guide plate 106 that appear light guide plate 106 bottoms.Except the below of light guide plate 106, reflector plate 108 can also be configured in the two sides of light guide plate 106, with will be from the light reflected back light guide plate 106 that light guide plate 106 sides appear.
Referring again to Fig. 1, the light-emitting diode component 102 of configuration provides the light that upwards transmits below light guide plate 106 zone line 106a, when light is passed to first microstructure 110 of the zone line 106a that is positioned at light guide plate 106, because first microstructure 110 has higher reflection potential for light, so most light can be by total reflection.At this moment, most light light guide plate 106 belows of will turning back back, only there is the light of small part to pass from the zone line 106a of light guide plate 106, therefore, the zone line 106a of light guide plate 106 does not have the too high light intensity (light intensity) that goes out, and the light that regional 106a does not appear from the centre can be passed to fringe region 106b effectively.As shown in Figure 1, can be once or for several times by the light of first microstructure 110 reflection in light guide plate 106 internal reflections, just penetrate afterwards from the fringe region 106b of light guide plate 106.Because second microstructure 120 is lower for the reflection potential of light, therefore the light extraction efficiency (efficiency) of the light edge region 106b that is reflected by first microstructure 110 can be greater than the light extraction efficiency of zone line 106a, but on the whole, fringe region 106b's goes out the light intensity that goes out that light intensity can be substantially equal to zone line 106a.
Figure 2 shows that the side schematic view of another embodiment of the area source of first embodiment of the invention.Please refer to Fig. 2 (in the following description and all embodiment, identical object will be represented with identical label), be similar to Fig. 1, the area source 200 of present embodiment comprises a light-emitting diode component 102, a light guide plate 106 and a reflector plate 108.Light-emitting diode component 102 is configured in light guide plate 106 times, and light guide plate 106 has upper surface 104a and lower surface 104b, has the zone line 106a that is positioned at above the light-emitting diode component 102 on the upper surface 104a and around the fringe region 106b of zone line 106a.Light guide plate 106 also has a plurality of first microstructures 110 and a plurality of second microstructure, 120, the first microstructures 110 are distributed in zone line 106a, and second microstructure 120 then is distributed in fringe region 106b.Fig. 2 and Fig. 1 difference part are: have first microstructure 110 and 120 distributions of second microstructure on the lower surface 104b of light guide plate 106 thereon, meaning promptly, be distributed with first microstructure 110 in light-emitting diode component 102 peripheries, and be distributed with second microstructure 120 in first microstructure, 110 peripheries.
Second embodiment
Figure 3 shows that the side schematic view of the area source of second embodiment of the invention.Please refer to Fig. 3, be similar to Fig. 1, the area source 300 of present embodiment comprises a light-emitting diode component 102, a light guide plate 306, a reflector plate 108 and first microstructure 110 and second microstructure 120.In the area source 300 of present embodiment, the upper surface 304a of light guide plate 306 is one pyramidal surperficial 310, and lower surface 304b is a plane 320.First microstructure 110 on the light guide plate 306 and second microstructure 120 also are distributed on pyramidal surperficial 310 (being upper surface 304a) with the described distribution mode of previous embodiment, 102 of light-emitting diode components are configured on the plane 320 (being lower surface 304b), and are positioned at the below at pyramidal surperficial 310 tip 330.
Figure 4 shows that the side schematic view of another embodiment of the area source of second embodiment of the invention.Please refer to Fig. 4, be similar to Fig. 3, the area source 400 of present embodiment comprises a light-emitting diode component 102, a light guide plate 306, a reflector plate 108 and first microstructure 110 and second microstructure 120.In the present embodiment, the upper surface 304a of light guide plate 306 is one pyramidal surperficial 310, and lower surface is 304b one plane 320.Fig. 4 and Fig. 3 difference part are: have first microstructure 110 and second microstructure 120 on the plane 320 of the light guide plate 106 of present embodiment (being lower surface 304b) and distribute on it, meaning promptly, be distributed with first microstructure 110 in light-emitting diode component 102 peripheries, and be distributed with second microstructure 120 in first microstructure, 110 peripheries.
Fig. 5 A and Fig. 5 B are depicted as the partial schematic diagram of an embodiment of the described area source of Fig. 1 to Fig. 4.Please refer to Fig. 5 A, first microstructure 110 of present embodiment comprises that first annular prism 112, the second microstructures 120 with one heart a plurality of and that distribute from inside to outside then comprise a plurality of pyramids 116.Referring again to Fig. 5 B, first microstructure 110 of present embodiment comprises that first 120 of annular prism 112, the second microstructures with one heart a plurality of and that distribute from inside to outside comprise a plurality of hemispheres 118.Though second microstructure 120 can be pyramid 116 or hemisphere 118 in the above-described embodiment, it also can be that comprehensive pyramid 116 and hemisphere 118 formed.
Figure 6 shows that the partial schematic diagram of another embodiment of the described area source of Fig. 1 to Fig. 4.Please refer to Fig. 6, first microstructure 110 that identical with Fig. 5 is comprises the first annular prism 112 with one heart a plurality of and that distribute from inside to outside, and and Fig. 5 different be that second microstructure 120 comprises the second annular prism 114 with one heart a plurality of and that distribute from inside to outside.
Fig. 7 to Figure 11 is depicted as the light shape figure of the area source of the zone line with different size respectively.In Fig. 7 to Figure 11, the zone line 106a of light guide plate 106 is to be example with the border circular areas, but also can be the zone of other shape.That is to say that the border circular areas of the zone line 106a of present embodiment is distributed with first microstructure 110, then be distributed with second microstructure 120 outside the border circular areas.Fig. 7 to Figure 11 represents the zone line 106a of tool different size respectively, and it is that radius 1mm, Fig. 8 are that radius 2mm, Fig. 9 are that radius 3mm, Figure 10 are that radius 4mm and Figure 11 are radius 150mm for Fig. 7 in regular turn.Light shape figure by Fig. 7 to Figure 11 can learn that the circular radius zone from 1mm to 4mm can obtain the preferable light source of uniformity coefficient gradually, and light intensity also has variation slightly, therefore can provide selection according to deviser's demand.And circular radius to be Figure 10 of 4mm and its light shape of Figure 11 that circular radius is 150mm figure be very approaching, therefore the radius of border circular areas can be 1mm～150mm on the implementation, and the radius of its preferable enforcement border circular areas is between 1mm～4mm.
The 3rd embodiment
Figure 12 shows that the side schematic view of the area source of third embodiment of the invention.Please refer to Figure 12, the area source 500 of present embodiment comprises a supporting body 150, a plurality of light-emitting diode component 102, two light guide plate 160a and a 160b and a reflector plate 108.Wherein, supporting body 150 has one first loading end 152 and one second loading end 154.A plurality of light-emitting diode components 102, be configured on first loading end 152 and second loading end 154 and (only respectively illustrate a light-emitting diode component 102 on first loading end 152 and second loading end 154 among the figure), wherein light-emitting diode component 102 is suitable for providing a light.This light-emitting diode component 102 can be the white light emitting diode assembly, also can be the light-emitting diode component of other coloured light.Two light guide plate 160a and 160b are configured in the both sides of supporting body 150, respectively have a upper surface 910, a lower surface 920 and is connected in the incidence surface 930 between upper surface 910 and the lower surface 920, and light is suitable for entering light guide plate 160a and the 160b from incidence surface.Light guide plate 160a and 160b have the first area 906a and the second area 906b away from this light-emitting diode component 102 of a contiguous light-emitting diode component 102, and wherein first area 906a, but does not limit for being a rectangular area at present embodiment.Light guide plate 160a and 160b have a plurality of first microstructures 110 that are distributed in first area 906a and a plurality of second microstructure, 120, the first microstructures 110 that are distributed in second area 906b and are higher than the reflection potential of second microstructure 120 for light for the reflection potential of light.In other words, first microstructure 110 can make most light total reflection, only allows the light of small part to appear, and can make the light total reflection of less ratio compared to first microstructure, 110, the second microstructures 120, and allows the light of higher rate to appear.In addition, reflector plate 108 is the belows that are configured in light guide plate 160a and 160b, with will be from the light reflected back light guide plate 160a and 160b that appear light guide plate 106 bottoms.Except the below of light guide plate 160a and 160b, reflector plate 108 can also be configured in the two sides of light guide plate 160a and 160b, with will be from light reflected back light guide plate 160a and 160b that light guide plate 160a and 160b side appear.
Referring again to Figure 12, the light-emitting diode component 102 that is configured on first loading end 152 and second loading end 154 provides the light that upwards transmits, when light is passed to first microstructure 110 of the first area 906a on light guide plate 160a and the 160b, because first microstructure 110 has higher reflection potential for light, so most light can be by total reflection.At this moment, most light will be turned back back below light guide plate 160a and the 160b, only there is the light of small part to pass from the first area 906a of light guide plate 160a and 160b, therefore, the first area 906a of light guide plate 160a and 160b does not have the too high light intensity that goes out, and the light that does not appear from first area 906a can be passed to second area 906b effectively.As shown in Figure 12, can be once or for several times by the light of first microstructure 110 reflection in light guide plate 160a and 160b internal reflection, just penetrate afterwards from the second area 906b of light guide plate 160a and 160b.Because second microstructure 120 is lower for the reflection potential of light, therefore the light that is reflected by first microstructure 110 can be greater than the light extraction efficiency of first area 906a at the light extraction efficiency of second area 906b, but on the whole, second area 906b's goes out the light intensity that goes out that light intensity can be substantially equal to first area 906a.
In the embodiment of the 3rd embodiment, also can be as the difference of Fig. 1 and Fig. 2 embodiment, that is to say, have first microstructure 110 and 120 distributions of second microstructure on the lower surface 920 of light guide plate 160a and 160b thereon, that is be distributed with first microstructure 110, and be distributed with second microstructure 120 in first microstructure, 110 peripheries in light-emitting diode component 102 peripheries.
Figure 13 A and Figure 13 B are depicted as the partial schematic diagram of the microstructure of third embodiment of the invention area source.Please refer to Figure 13 A, first microstructure 110 of present embodiment comprises that a plurality of first bar shaped prism, 162, the second microstructures 120 parallel to each other then comprise a plurality of pyramids 116.Referring again to Figure 13 B, first microstructure 110 of present embodiment comprises that a plurality of 120 of the first bar shaped prism, 162, the second microstructures parallel to each other comprise a plurality of hemispheres 118 in addition.Though second microstructure 120 can be pyramid 116 or hemisphere 118 in the above-described embodiment, it also can be that comprehensive pyramid 116 and hemisphere 118 formed.
Figure 14 shows that the partial schematic diagram of another embodiment of the microstructure of third embodiment of the invention area source.Please refer to Figure 14, first microstructure 110 that is distributed on light guide plate 160a and the 160b comprises a plurality of first bar shaped prisms 162 parallel to each other, and second microstructure 120 also can comprise a plurality of second bar shaped prisms 164 parallel to each other.
In the embodiment of the 3rd embodiment, light guide plate 160a and 160b have the first area 906a of a contiguous light-emitting diode component 102.Wherein first area 906a reaches at present embodiment as the aforementioned to being a rectangular area, but does not limit.And the width of rectangular area is also described similar in appearance to aforesaid second embodiment, and it can be that 1mm is between the number mm.
The 4th embodiment
Figure 15 A and Figure 15 B be depicted as fourth embodiment of the invention modular surface light source on look and schematic side view.Please be simultaneously with reference to Figure 15 A and Figure 15 B, modular surface light source 600 comprises area source arranged into an array 100 and a plurality of outside light guide plate 660, outside light guide plate 660 is positioned on the area source 100 and is also arranged into an array.Area source 100 is configured in the below of outside light guide plate 660 adjacent positions, and then the uniform light that is sent by area source 100 can relend by outside light guide plate 660 and derive light.Therefore by a plurality of area source 100 arranged into an array and a plurality of outside light guide plate 660 modular surface light sources of forming 600 arranged into an array, can obtain bigger lighting area.
Figure 16 shows that another embodiment synoptic diagram of the modular surface light source of fourth embodiment of the invention.Please refer to Figure 16, modular surface light source 700 comprises area source arranged into an array 100 and a plurality of outside light guide plate 760, and outside light guide plate 760 is positioned on the area source 100 and is also arranged into an array.Specifically, each area source 100 is to be embedded in the adjacent space zone of outside light guide plate 760 belows.Therefore by a plurality of area source 100 arranged into an array and a plurality of outside light guide plate 760 modular surface light sources of forming 700 arranged into an array, also can obtain bigger lighting area.
Figure 17 shows that the another embodiment synoptic diagram of the modular surface light source of fourth embodiment of the invention.Please refer to Figure 17, modular surface light source 800 is similar to the embodiment of Figure 16, and different is that area source 100 is the area of space that are embedded in single outside light guide plate 860 belows, and is adjacent again to another outside light guide plate 860.Therefore by a plurality of area source 100 arranged into an array and a plurality of outside light guide plate 860 modular surface light sources of forming 800 arranged into an array, also can obtain bigger lighting area.
What deserves to be mentioned is that the 4th embodiment is mainly the modular surface light source of area source and outside light guide plate collocation, is to be example with area source 100 in the present embodiment, but its also can be described in the aforesaid embodiment and area source.
In sum, area source of the present invention and modular surface light source have following advantage at least:
(1) in area source of the present invention, because light guide plate has different microstructures, and different microstructures has different reflection potentiales for light, so light guide plate can spread light equably.
(2) in area source of the present invention, because light guide plate has different microstructures, and different microstructures has different reflections and refracting power for light, so the deviser can control the emergence angle and the outgoing position of light, and then obtains the area source of big light-emitting area.
(3) modular surface light source of the present invention can make pointolite change area source into.
(4) modular surface light source of the present invention can obtain the area source of big light-emitting area, and can control the uniformity coefficient of light.
Though the present invention with preferred embodiment openly as above; right its is not in order to qualification the present invention, any insider, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (14)
1. area source comprises:
One light-emitting diode component is suitable for providing a light;
One light guide plate, have a zone line and the fringe region around this zone line that is positioned at this light-emitting diode component top, wherein this light guide plate has a plurality of first microstructure and a plurality of second microstructures that are distributed in this fringe region that are distributed in this zone line, and described first microstructure is higher than the reflection potential of described second microstructure for this light for the reflection potential of this light; And
One light-emitting diode component is configured under this light guide plate, and wherein this light-emitting diode component is positioned at this zone line below.
2. area source according to claim 1 is characterized in that this light guide plate has a upper surface and a lower surface.
3. area source according to claim 2 is characterized in that this light-emitting diode component is configured on this lower surface, and described first microstructure and described second microstructure are distributed on this upper surface.
4. area source according to claim 3 is characterized in that, described first microstructure and described second microstructure more are distributed on this lower surface.
5. area source according to claim 4 is characterized in that, this upper surface of this light guide plate is a pyramidal surface, and this lower surface is a plane.
6. area source according to claim 5 is characterized in that this light-emitting diode component is configured on this plane, and is positioned at the below at the tip on this pyramidal surface, and described first microstructure and described second microstructure are distributed on this pyramidal surface.
7. area source according to claim 6 is characterized in that, described first microstructure and described second microstructure also are distributed on this plane.
8. area source according to claim 1 is characterized in that, described first microstructure comprises the first annular prism with one heart a plurality of and that distribute from inside to outside, and described second microstructure comprises a plurality of pyramids or hemisphere.
9. area source according to claim 1 is characterized in that, described first microstructure comprises the first annular prism with one heart a plurality of and that distribute from inside to outside, and described second microstructure comprises the second annular prism with one heart a plurality of and that distribute from inside to outside.
10. area source comprises:
One supporting body has one first loading end and one second loading end;
A plurality of light-emitting diode components are configured on this first loading end and this second loading end, and wherein said light-emitting diode component is suitable for providing a light; And
Two light guide plate, be configured in this supporting body both sides, and each light guide plate has the first area and the second area away from this light-emitting diode component of contiguous this light-emitting diode component, wherein this light guide plate has a plurality of first microstructure and a plurality of second microstructures that are distributed in this second area that are distributed in this first area, and described first microstructure is higher than the reflection potential of described second microstructure for this light for the reflection potential of this light.
11. area source according to claim 10 is characterized in that, this light guide plate has a upper surface, a lower surface and is connected in the incidence surface between this upper surface and the lower surface, and this light is suitable for entering this light guide plate from this incidence surface.
12. area source according to claim 11 is characterized in that, described first microstructure and described second microstructure are distributed on this upper surface.
13. area source according to claim 11 is characterized in that, described first microstructure comprises a plurality of first bar shaped prisms parallel to each other, and described second microstructure comprises a plurality of pyramids or hemisphere.
14. area source according to claim 11 is characterized in that, described first microstructure comprises a plurality of first bar shaped prisms parallel to each other, and described second microstructure comprises a plurality of second bar shaped prisms parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100932571A CN101093315A (en) | 2006-06-23 | 2006-06-23 | Area light source, and module of area light source |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100932571A CN101093315A (en) | 2006-06-23 | 2006-06-23 | Area light source, and module of area light source |
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| CN101093315A true CN101093315A (en) | 2007-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100932571A Pending CN101093315A (en) | 2006-06-23 | 2006-06-23 | Area light source, and module of area light source |
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| CN (1) | CN101093315A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101761809A (en) * | 2010-02-08 | 2010-06-30 | 深圳创维－Rgb电子有限公司 | Manufacturing method for LED die sets |
| CN102122014A (en) * | 2011-04-14 | 2011-07-13 | 无锡睿涛光电科技有限公司 | Ultrathin light-guiding film and light-guiding structure thereof |
| CN102655141A (en) * | 2011-03-02 | 2012-09-05 | 建准电机工业股份有限公司 | Polycrystal packaging structure of luminescent crystal |
| CN103427012A (en) * | 2012-05-24 | 2013-12-04 | 立碁电子工业股份有限公司 | Light emitting module |
| CN103574345A (en) * | 2012-07-25 | 2014-02-12 | 胜华科技股份有限公司 | Light source module |
| CN106960890A (en) * | 2017-05-04 | 2017-07-18 | 苏州高德辰光电科技有限公司 | A kind of reflectance coating and its application |
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| CN107307694A (en) * | 2017-08-26 | 2017-11-03 | 重庆门里科技有限公司 | A kind of interactive desktop light filling mirror |
| CN107402420A (en) * | 2016-05-18 | 2017-11-28 | 瑞仪光电(苏州)有限公司 | Light guide plate and backlight module |
| CN108287438A (en) * | 2018-03-30 | 2018-07-17 | 京东方科技集团股份有限公司 | Backlight module and display equipment |
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| CN101761809A (en) * | 2010-02-08 | 2010-06-30 | 深圳创维－Rgb电子有限公司 | Manufacturing method for LED die sets |
| CN102655141A (en) * | 2011-03-02 | 2012-09-05 | 建准电机工业股份有限公司 | Polycrystal packaging structure of luminescent crystal |
| CN102122014A (en) * | 2011-04-14 | 2011-07-13 | 无锡睿涛光电科技有限公司 | Ultrathin light-guiding film and light-guiding structure thereof |
| CN103427012A (en) * | 2012-05-24 | 2013-12-04 | 立碁电子工业股份有限公司 | Light emitting module |
| CN103427012B (en) * | 2012-05-24 | 2016-01-06 | 立碁电子工业股份有限公司 | Light emitting module |
| CN103574345A (en) * | 2012-07-25 | 2014-02-12 | 胜华科技股份有限公司 | Light source module |
| CN107402420A (en) * | 2016-05-18 | 2017-11-28 | 瑞仪光电(苏州)有限公司 | Light guide plate and backlight module |
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| CN107402420B (en) * | 2016-05-18 | 2019-10-15 | 瑞仪光电(苏州)有限公司 | Light guide plate and backlight module |
| CN107026210A (en) * | 2017-05-04 | 2017-08-08 | 苏州高德辰光电科技有限公司 | A kind of reflectance coating, its manufacture method and its application |
| CN106960890A (en) * | 2017-05-04 | 2017-07-18 | 苏州高德辰光电科技有限公司 | A kind of reflectance coating and its application |
| CN107307694A (en) * | 2017-08-26 | 2017-11-03 | 重庆门里科技有限公司 | A kind of interactive desktop light filling mirror |
| CN108287438A (en) * | 2018-03-30 | 2018-07-17 | 京东方科技集团股份有限公司 | Backlight module and display equipment |
| US11131798B2 (en) | 2018-03-30 | 2021-09-28 | Boe Technology Group Co., Ltd. | Backlight module and display device |
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