CN101358712A - Backlight module and light-mixing structure thereof - Google Patents
Backlight module and light-mixing structure thereof Download PDFInfo
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- CN101358712A CN101358712A CNA2008102124342A CN200810212434A CN101358712A CN 101358712 A CN101358712 A CN 101358712A CN A2008102124342 A CNA2008102124342 A CN A2008102124342A CN 200810212434 A CN200810212434 A CN 200810212434A CN 101358712 A CN101358712 A CN 101358712A
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Abstract
The invention provides a back light module and a light mixing structure thereof; wherein, the light mixing structure includes a light guide strip. The first surface of the light guide strip is provided with a plurality of incident surfaces of an adjacent light source in a spacing way so as to introduce the light; the second surface of the light guide strip is provided with the light extraction surface of an adjacent light guide plate. A whole incline is arranged on the adjacent light extraction surface on the light guide strip and is aligned with the location of the incident surface. The incline is not parallel to the incident surface; besides, the inner wall of the incline is used for reflecting the light from the incident surface. A reflection/penetrating micro-structure is arranged between two close incident surfaces on the first surface and is aligned with the light extraction surface for reflecting the light reflected from the incline to the light extraction surface.
Description
Technical field
The invention relates to a kind of display, and particularly relevant for a kind of backlight module.
Background technology
Backlight module is one of key part and component of display panels.Because liquid crystal itself can't be luminous, therefore need to supply light source with backlight module, use making liquid crystal panel that normal and the well-balanced image of brightness can be provided.A plurality of optical sheets are arranged in backlight module, for example LGP, diffusion sheet and prismatic lens, the light that is used for light source is sent is distributed on the liquid crystal panel equably, and then improves the brightness of liquid crystal panel.
The light source that is applied to backlight module has cold-cathode fluorescence lamp or light emitting diode.Wherein, because light emitting diode has possessed characteristics such as high-durability, the life-span is long, light and handy, power consumption is low, be a highly desirable new generation lighting source.Especially under the surging gradually situation of present energy expenditure, light emitting diode more is subjected to the attention and the utilization of industrial circle, uses to replace other bigger light-emitting components of power consumption in the past.In addition, light emitting diode is of a great variety, of many uses, becomes important tool indispensable in the modern life already.
Generally speaking, be subject to technology, the colour temperature and the brightness of the light that each light emitting diode sent in the same wholesale optical diode are not quite similar.When in the backlight module that is applied to display, the colour temperature of each light emitting diode or the difference of brightness will cause on the display picture problems such as bright dark space piece or irregular colour be even.
For fear of above-mentioned problem, the display dealer can segment classification according to its colour temperature and brightness again with same wholesale optical diode usually, only gets the close light emitting diode of colour temperature and brightness and makes backlight module, and remaining light emitting diode is then eliminated.So not only increase processing step, go back waste material, increase production cost.
In view of this, need a kind of new backlight module and optical texture thereof, can overcome the phenomenon of light emitting diode colour temperature and luminance difference, take into account industry demand and economic benefit simultaneously.
Summary of the invention
One aspect of the present invention provides a kind of light-mixing structure, in order to mix the light that several light sources send, to solve because of the colour temperature that difference was caused of each light source bright dipping and the problem of brightness irregularities.Light-mixing structure is essentially a leaded light bar, and it has a pair of plane relative to each other, is called first and second.Be arranged at intervals with several incidence surfaces on first, incidence surface is respectively in abutting connection with light source, and light emitting diode for example is to import light into.Second face is provided with exiting surface, and exiting surface is in abutting connection with LGP.Several inclined-planes are arranged on the leaded light bar in abutting connection with exiting surface and alignment incidence surface part.Each inclined-plane all is not parallel to incidence surface, and the inwall on inclined-plane is in order to the light of reflection from the light source of incidence surface incident.The leaded light bar still comprises and reflects/penetrate micro-structural, and it is arranged on first, and between two next-door neighbours' incidence surfaces, and the alignment exiting surface, reflexing to exiting surface from the light of inclined-plane reflection.
Hence one can see that, even if the colour temperature of the light that each light source sent or brightness are slightly variant, also can mix mutually through the light of light-mixing structure with each light source, makes that the light that is finally spread out of by exiting surface is colour temperature and the uniform light of luminance mix.
On the other hand, the invention provides a kind of backlight module, can adopt several brightness light source not identical completely with colour temperature, the light-mixing structure that sees through in the backlight module evenly mixes the light that light source sent, to produce the output light of even colour temperature and brightness.Backlight module has light source, light-mixing structure and LGP, and light-mixing structure is between light source and LGP.
Light-mixing structure comprises a leaded light bar, and the leaded light bar is provided with several incidence surfaces, inclined-plane, reflection/penetrate micro-structural and exiting surface.Incidence surface is spaced in the leaded light bar first, each light source in abutting connection with an incidence surface with incident light to light-mixing structure.The inwall on inclined-plane aligns incidence surface respectively with the light of reflection from incidence surface incident.Reflect/penetrate micro-structural and be arranged between two incidence surfaces that are close to, in order to the light of reflection from the inclined-plane reflection.Exiting surface is arranged on second of leaded light bar, in abutting connection with the inclined-plane and alignment reflect/penetrate micro-structural, exiting surface is sent to LGP in abutting connection with LGP in order to the light that will reflect/penetrate the micro-structural reflection certainly.Wherein, first is a pair of relative plane on the leaded light bar with second.
By settings such as incidence surface, inclined-plane, exiting surface and reflection in the light-mixing structure/penetrate micro-structurals, the light that each light source is sent is able to evenly mix in light-mixing structure, and then makes that the light that is sent to LGP is brightness and the uniform light of colour temperature.
The invention provides another kind of light-mixing structure, in order to mix the different-colour that a plurality of light source produces or the light of brightness, to produce uniform output light.Light-mixing structure mainly comprises a leaded light bar, and it is trapezoidal that its section roughly is, and it has first, second and a pair of inclined-plane.Wherein, second is a pair of relative plane with first, and each inclined-plane is all in abutting connection with first and second.Go up separation for first and be provided with several incidence surfaces, each incidence surface aligns the inclined-plane respectively also respectively in abutting connection with several light sources.Also be provided with at least one reflection/penetrate micro-structural on first, reflecting/penetrate micro-structural and incidence surface alternately arranges, can be in order to reflect/to penetrate the light that reflects from the inclined-plane, the promptly a part of light meeting penetrate through reflective of anticipating/penetrate micro-structural from the inclined-plane reflection, another part light then can be reflected.Go up setting by at least one exiting surface for second, micro-structural is reflected/penetrates in the exiting surface alignment, reaches LGP in order to the light that will reflect/penetrate the micro-structural reflection certainly.From the above, light-mixing structure can mix the light that a plurality of light source sends, and light is evenly mixed, and then produces brightness and the uniform light of colour temperature.
In addition, the present invention provides another kind of light-mixing structure again, sees through the mode of mixing light, solves the photochromic temperature of light source or the problem of brightness irregularities.One leaded light bar is arranged in the light-mixing structure, and the leaded light bar has relative to each other and first and second of almost parallel.Wherein, several incidence surfaces are separate to be arranged on first, and respectively in abutting connection with several light sources, to accept the light of light source incident.Several grooves are separate to be arranged on second, and the incidence surface that aligns respectively.The inwall of each groove can reflect the light from the light source of incidence surface incident.Several reflections/penetrate the micro-structural separation to be arranged on first, and alternately arrange with incidence surface, in order to the light of reflection from the groove reflection.Several exiting surfaces are separated and are arranged on second, and alternately arrange and align with groove and reflect/penetrate micro-structural, spread out of to a LGP in order to the light that will reflect/penetrate the micro-structural reflection certainly.
From the above, though the colour temperature of the light that each light source produced or brightness are inequality, light is mixed mutually, thereby produce colour temperature and the uniform light of luminance mix yet see through light-mixing structure.Thus, the dealer needn't be persistent again in the light source of selecting identical or close colour temperature and brightness, not only simplifies and make flow process, more can reduce the material expenditure, reduces production costs.
Description of drawings
For allowing above-mentioned and other purposes of the present invention, feature, advantage and embodiment can become apparent appended graphic being described in detail as follows:
Fig. 1 is the stereogram that illustrates according to the backlight module of the embodiment of the invention.
Fig. 2 is the aerial view that illustrates the backlight module that illustrates according to Fig. 1.
Fig. 3 is the aerial view that illustrates the light-mixing structure that illustrates according to Fig. 2.
Fig. 4 is the aerial view that illustrates according to the light-mixing structure of another embodiment of the present invention.
Fig. 5 is the aerial view that illustrates according to the backlight module of another embodiment of the present invention.
Fig. 6 is the aerial view that illustrates the light-mixing structure that illustrates according to Fig. 5.
Drawing reference numeral:
100: backlight module 110: light source
120: LGP 130: reflector
140: 142: the first of light-mixing structures
144: the second 146: the leaded light bar
210: incidence surface 220: exiting surface
222: groove 230: groove
240: inclined-plane 250: reflect/penetrate micro-structural
252: groove 310: scattering particles
The specific embodiment
Please refer to Fig. 1 and Fig. 2, it illustrates the stereogram and the aerial view of the backlight module 100 of one embodiment of the invention respectively.No matter it is that brightness or colour temperature are all uniform light that backlight module 100 is responsible for offering display.
Please also refer to Fig. 2 and Fig. 3, Fig. 3 illustrates the aerial view of light-mixing structure 140.Light-mixing structure 140 mainly comprises a leaded light bar 146, is used for the light that light source 110 is sent is transmitted to LGP 120.Leaded light bar 146 can be made up of transparent optics materials such as acryl or polymethyl methacrylates.Leaded light bar 146 is provided with several incidence surfaces 210, inclined-plane 240, reflects/penetrate micro-structural 250 and exiting surface 220.
Inclined-plane 240 is arranged in the leaded light bar 146, in abutting connection with exiting surface 220 and alignment incidence surface 210 parts.Each inclined-plane 240 is all not parallel with each incidence surface 210, make from difficult 240 ejaculations of the light of incidence surface 210 incidents from the inclined-plane, and the inwall on inclined-plane 240 is in order to the light of reflection from incidence surface 210 incidents, to increase reflection of light number of times and conduct path, make the light that each light source 110 imports into be able in light-mixing structure 140, fully mix.
In general, when light passed the interface of two kinds of refractive index different mediums, the direct of travel of light can change to some extent, as refraction or reflection.Wherein, when light incides optically thinner medium by optically denser medium, if the angle of the incident of light greater than critical angle, total reflection will take place.In the principle that has common knowledge technology personnel Ying Zhi critical angle in the art, and the size of critical angle can be different in response to the difference of the medium at interface two ends.In an embodiment of the present invention, the material of leaded light bar 146 is an acryl, and the critical angle between itself and the air is about 42 degree.
Embodiments of the invention are characteristics of utilizing above-mentioned critical angle.Particularly, inclined-plane 240 has an angle with incidence surface 210, makes when light shines inclined-plane 240 by incidence surface 210 that the incidence angle that most light is produced on inclined-plane 240 is greater than critical angle, so can produce total reflection.
Angle between inclined-plane 240 and the incidence surface 210 also can be adjusted, and makes the angle on most incident light and inclined-plane 240 greater than the critical angle of the inner total reflection of optics material.The angle of the angle between inclined-plane 240 and the incidence surface 210 between 30 spend to 60 the degree between, be preferably critical angle greater than leaded light bar 146.In the present embodiment, the angle of angle is preferably 45 degree greater than 42 degree.
On the other hand, can on inclined-plane 240, strengthen the structure of total reflection, make incident light also can be reflected by inclined-plane 240 less than the incident light of critical angle.Particularly, the material of the inwall on inclined-plane 240 can be the plated film with high reflectance, similarly is the minute surface plated film, to increase the reflectivity on inclined-plane 240.
In the present embodiment, an end on inclined-plane 240 is in abutting connection with exiting surface 220, the other end and another inclined-plane 240 adjacency, and promptly inclined-plane 240 constitutes several grooves with V-arrangement cross section 230 in pairs, and groove 230 separate settings also are staggered with exiting surface 220.Each groove 230 is separately to a homogeneous incidence surface 210, and the inwall of groove 230 also just can reflect light by incidence surface 210 incidents for the inwall on inclined-plane 240.
Particularly, the minimum range of the central authorities to the first of groove 230 142 is less than the distance between first 142 and second 144, and promptly groove 230 is a depression on the leaded light bar 146, but not projection.Angle between the inclined-plane 240 in the groove 230 can change according to the optical characteristics of leaded light bar 146.In the present embodiment, the angle between two inclined-planes 240 is 90 degree.In addition, groove 230 also can comprise a plurality of inclined-planes 240, and the shape of groove 230 also can be semicircle.
Reflect/penetrate between the incidence surfaces 210 that micro-structural 250 is arranged at two next-door neighbours, promptly reflect/penetrate micro-structural 250 and incidence surface 210 and intermesh on first 142 that is arranged in leaded light bar 146, and alignment exiting surface 220.Reflecting/penetrate micro-structural 250 can penetrate the light portion reflecting part of 240 reflections from the inclined-plane.Wherein, but reflect/penetrate the light of micro-structural 250 reflecting parts 240 reflections, and reflect light to exiting surface 220 from the inclined-plane.In addition, the light of part 240 reflections from the inclined-plane can penetrate through reflective/and penetrate micro-structural 250 and spread out of leaded light bar 146.Can will spread out of in the light reflected back leaded light bar 146 of leaded light bar 146 by being arranged at leaded light bar 146 reflector 130 all around.Reflect/penetrate micro-structural 250 and can be printing net-point, v-depression (V-cut) or reflector.In an embodiment of the present invention, reflect/penetrate micro-structural 250 and be the groove 252 of several V-arrangements.
Exiting surface 220 is separated on second 144 that is arranged at leaded light bar 146, and in abutting connection with LGP 120, in order to mixed light is conducted to LGP 120.In an embodiment of the present invention, exiting surface 220 is provided with the groove 222 of several V-arrangements, makes light spread out of from exiting surface 220 easily.
Exiting surface 220 and incidence surface 210 are arranged at respectively on the Different Plane of leaded light bar 146, and interlaced with each other and do not line up, and make the light that is imported into by incidence surface 220 be difficult for directly being spread out of by exiting surface 220.The area of incidence surface 210 and exiting surface 220 can be according to the size setting of light source 110 and LGP 120, and when the thickness of light source 110 during less than LGP 120 thickness, the height of incidence surface 210 and area thereof then can be less than the height and the areas thereof of exiting surface 220.Vice versa, and when the thickness of light source 110 during greater than the thickness of LGP 120, the height of incidence surface and area then can be less than the height and the areas of exiting surface.In an embodiment of the present invention, the section of leaded light bar 146 slightly in echelon, promptly first of leaded light bar 146 142 parallel with second 144, and first 142 height is greater than second 144 height, makes the height of incidence surface 210 greater than the height of exiting surface 220.In an embodiment of the present invention, the area of incidence surface 210 is greater than the area of exiting surface 220.On the other hand, utilize reflector 130 to coat the outer surface of leaded light bar 146, can effectively reduce the light leakage phenomena in the light communication process.
Please refer to Fig. 4, it illustrates the aerial view of a kind of light-mixing structure 140 of another embodiment of the present invention.Be scattered with many scattering particles 310 among the leaded light bar 146 of light-mixing structure 140.Because scattering particles 310 intersperses among between incidence surface 210, inclined-plane 240 and the exiting surface 220, therefore in leaded light bar 146, advance and when shining scattering particles 310 when light, light can be subjected to scattering particles 310 effect and refraction or reflection, makes the going direction changing of light.Thus, under the concentration of suitable scattering particles, the number of times of light deviation in light-mixing structure 140 can increase, and makes the conduct path of light increase, and the mixability of the light that is sent with other light sources 110 just can improve.
Scattering particles 310 can be made by reflecting material, as titanium dioxide, barium sulfate, calcium carbonate, magnesia, zinc oxide or silicon compound such as silica.Scattering particles 310 also can be made by the different optical material of refractive index and leaded light bar 146, similarly is polystyrene or Merlon etc.
By embodiments of the invention as can be known, the brightness of each light source 110 that is adopted in the backlight module 100 need not be identical or approximate with colour temperature, as long as see through light-mixing structure 140 light that each light source 110 is sent is mixed, can make that just the light that is sent to LGP 120 is brightness and the uniform light of colour temperature.
Please refer to Fig. 5 and Fig. 6, Fig. 5 illustrates the aerial view according to the backlight module 100 of another embodiment of the present invention, and Fig. 6 illustrates the aerial view of light-mixing structure 140.In the present embodiment, the leaded light bar 146 of light-mixing structure 140 has roughly section in echelon, promptly first 142 with second 144 relative to each other and parallel, the two ends on two inclined-planes 240 are in abutting connection with first 142 and second 144.
Two incidence surfaces 210 are arranged on first 142 of leaded light bar 146, indivedual in abutting connection with a light source 110.Wherein, the colour temperature of two light sources 110 can be different with brightness.In an embodiment of the present invention, the colour temperature of two light sources 110 can be complementary colours.After the light of two complementary colours mixes, can produce the mixed light that is similar to white light.
Be provided with between two next-door neighbours' the incidence surface 210 and reflect/penetrate micro-structural 250.In an embodiment of the present invention, reflect/penetrate micro-structural 250 and be the groove 252 of several V-arrangements.Exiting surface 220 is arranged on second 144, and micro-structural 250 is reflected/penetrates in alignment, and in abutting connection with the LGP 120 of backlight module 100.
One end on inclined-plane 240 is in abutting connection with exiting surface 220, and the other end is in abutting connection with incidence surface 210.240 other vertical alignment two incidence surfaces 210 in two inclined-planes of light-mixing structure 140, and inclined-plane 240 all is not parallel to incidence surface 210.As previously mentioned, the inwall on inclined-plane 240 can reflect the light from incidence surface 210 incidents, even is total reflection.
Still comprise several scattering particles 310 in the light-mixing structure 140 and intersperse among in the leaded light bar 146, in order to change the direct of travel of light in the leaded light bar 146.
In other words, even if the colour temperature or the brightness of the light that each light source 110 is sent are slightly variant, after the light that light source 110 is sent imports into from the incidence surface 210 of light-mixing structure 140, by inclined-plane 240, scattering particles 310 with reflect/penetrate the effect of micro-structural 250, make that light mixes fully in light-mixing structure 140 after, just can send out colour temperature and the uniform light of luminance mix by exiting surface 220.Thus, just can solve the uneven problem that is caused because of each light source 110 bright dipping difference.
Though the present invention discloses as above with a plurality of embodiment; right its is not in order to limit the present invention; anyly have the knack of those skilled in the art; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention defines and is as the criterion when looking appending claims.
Claims (34)
1, a kind of light-mixing structure is characterized in that, described light-mixing structure comprises at least:
One leaded light bar has one first and one second, and described second is a pair of relative plane with described first;
A plurality of incidence surfaces are arranged at intervals at described first, and respectively in abutting connection with a plurality of light sources;
At least one exiting surface is arranged at described second, and in abutting connection with a LGP;
A plurality of inclined-planes, be arranged in the described leaded light bar, in abutting connection with described exiting surface, and the described a plurality of incidence surface that aligns respectively, wherein each described inclined-plane all is not parallel to described a plurality of incidence surface, and the inwall on described a plurality of inclined-planes is in order to the light of reflection from described a plurality of light sources of described a plurality of incidence surface incidents; And
At least one reflection/penetrate micro-structural is arranged between described incidence surface of two described first next-door neighbours, and the described exiting surface that aligns, reflexing to described exiting surface from the light of described a plurality of inclined-planes reflection.
2, light-mixing structure as claimed in claim 1 is characterized in that, described a plurality of inclined-planes are in pairs to form the groove in a plurality of V-arrangements cross section.
3, light-mixing structure as claimed in claim 1 is characterized in that, described first of described a plurality of slope abuts.
4, light-mixing structure as claimed in claim 1 is characterized in that, the material of the inwall on described a plurality of inclined-planes is high anacamptics material.
5, light-mixing structure as claimed in claim 1 is characterized in that, also comprises a plurality of scattering particles and intersperses among among the described leaded light bar.
6, light-mixing structure as claimed in claim 5 is characterized in that, the material of described a plurality of scattering particles is titanium dioxide or silicon compound.
7, light-mixing structure as claimed in claim 1 is characterized in that, described reflection/penetrate micro-structural comprises a plurality of v-depressions.
8, light-mixing structure as claimed in claim 1 is characterized in that, described reflection/penetrate micro-structural is a reflector.
9, light-mixing structure as claimed in claim 1 is characterized in that, also comprises a plurality of v-depressions and is positioned at described exiting surface.
10, light-mixing structure as claimed in claim 1 is characterized in that, each described inclined-plane and described one of them person of a plurality of incidence surface have an angle, and described angle is 45 degree.
11, a kind of backlight module is characterized in that, described backlight module comprises at least:
A plurality of light sources;
One light-mixing structure comprises:
One leaded light bar;
A plurality of incidence surfaces, each interval are arranged in one first of described leaded light bar, and wherein each described light source is in abutting connection with described one of them person of a plurality of incidence surfaces, with incident light to described light-mixing structure;
A plurality of inclined-planes are arranged on the described leaded light bar, and the described a plurality of incidence surfaces of the indivedual alignment of the inwall on wherein said a plurality of inclined-planes are with the light of reflection from described a plurality of incidence surface incidents;
At least one reflection/penetrate micro-structural is arranged between two next-door neighbours' the described incidence surface, in order to the light of reflection from described a plurality of inclined-planes reflection;
At least one exiting surface, be arranged on one second of described leaded light bar, in abutting connection with described a plurality of inclined-planes, and the described reflection of aliging/penetrate micro-structural, in order to send out the light from the reflection of described reflection/penetrate micro-structural, wherein said first is a pair of relative plane with described second; And
One LGP is in abutting connection with described exiting surface.
12, backlight module as claimed in claim 11 is characterized in that, described one of them person of a plurality of incidence surfaces of each described slope abuts.
13, backlight module as claimed in claim 11 is characterized in that, the inwall on described a plurality of inclined-planes is with the light total reflection from described a plurality of incidence surface incidents.
14, backlight module as claimed in claim 13 is characterized in that, the material on described a plurality of inclined-planes is the ATR Optical material.
15, backlight module as claimed in claim 11 is characterized in that, described reflection/penetrate micro-structural comprises a plurality of v-depressions.
16, backlight module as claimed in claim 11 is characterized in that, described light-mixing structure also comprises a plurality of scattering particles and intersperses among between described a plurality of incidence surface, described a plurality of inclined-planes and the described exit facet, in order to change the direct of travel of light.
17, backlight module as claimed in claim 16 is characterized in that, the material of described a plurality of scattering particles is titanium dioxide, barium sulfate, calcium carbonate, magnesia, zinc oxide, polystyrene, Merlon or silicon compound.
18, backlight module as claimed in claim 11 is characterized in that, also comprises the upper surface of the described LGP in a reflector fitting part, and extends to the lower surface of described light-mixing structure and described LGP.
19, backlight module as claimed in claim 11 is characterized in that, the material of described leaded light bar is acryl or polymethyl methacrylate.
20, backlight module as claimed in claim 11 is characterized in that, described first height is greater than described second height.
21, backlight module as claimed in claim 20 is characterized in that, the area of described incidence surface is greater than the area of described exiting surface.
22, a kind of light-mixing structure is characterized in that, described light-mixing structure comprises:
One leaded light bar has the section that roughly is trapezoidal, has one first, one second and a pair of inclined-plane, and described second is a pair of relative plane with described first, and each described inclined-plane is all in abutting connection with described first and described second;
A plurality of incidence surfaces, separation are arranged at described first and go up and the described a plurality of inclined-plane that aligns respectively, and respectively in abutting connection with a plurality of light sources;
At least one reflection/penetrate micro-structural is arranged at described first, and alternately arranges with described a plurality of incidence surfaces, in order to the light of reflection from described a plurality of inclined-planes reflection; And
At least one exiting surface is arranged at described second, and the described reflection of aliging/penetrate micro-structural will be in order to reaching a LGP from the light of described reflection/penetrate micro-structural reflection.
23, light-mixing structure as claimed in claim 22 is characterized in that, also comprises a plurality of scattering particles and intersperses among in the described leaded light bar, to change the direct of travel of light.
24, light-mixing structure as claimed in claim 22 is characterized in that, described a plurality of inclined-planes are not parallel to described a plurality of incidence surface, and the inwall on described a plurality of inclined-planes will be from the light total reflection of described a plurality of light sources of described a plurality of incidence surface incidents.
25, light-mixing structure as claimed in claim 24 is characterized in that, the material on described a plurality of inclined-planes is the optics material of total reflection.
26, a kind of light-mixing structure is characterized in that, described light-mixing structure comprises:
One leaded light bar has relative to each other and one first and one second of almost parallel;
A plurality of incidence surfaces separately are arranged at described first, and respectively in abutting connection with a plurality of light sources, to accept the light of described a plurality of light source incidents;
A plurality of grooves separately are arranged at described second, and the described a plurality of incidence surface that aligns respectively, and the inwall reflection of wherein said a plurality of grooves is from the light of described a plurality of light sources of described incidence surface incident;
A plurality of reflections/penetrate micro-structural, separation is arranged at described first, and alternately arranges with described a plurality of incidence surfaces, in order to the light of reflection from described a plurality of grooves reflections; And a plurality of exiting surfaces, to separate and to be arranged at described second, and alternately arrange with described a plurality of grooves, and the described reflection of aliging/penetrate micro-structural is in order to spread out of from described reflection/penetrate light to one LGP of micro-structural reflection.
27, light-mixing structure as claimed in claim 26 is characterized in that, the central authorities of each described groove arrive described first minimum range to described first minimum range less than described second.
28, light-mixing structure as claimed in claim 27 is characterized in that, described a plurality of grooves be shaped as V-arrangement or semicircle.
29, light-mixing structure as claimed in claim 26 is characterized in that, each described groove has a pair of inclined-plane respectively in abutting connection with the two described exiting surfaces that are close to.
30, light-mixing structure as claimed in claim 29 is characterized in that, described a plurality of inclined-planes have an angle of cut, and the described angle of cut is 90 degree.
31, light-mixing structure as claimed in claim 26 is characterized in that, the inwall of described a plurality of grooves has the optics material of total reflection.
32, light-mixing structure as claimed in claim 26 is characterized in that, also comprises a plurality of scattering particles and intersperses among between described a plurality of incidence surface, described a plurality of inclined-planes and the described exit facet.
33, light-mixing structure as claimed in claim 26 is characterized in that, described first height is greater than described second height.
34, light-mixing structure as claimed in claim 26 is characterized in that, the area of described incidence surface is greater than the area of described exiting surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008102124342A CN101358712A (en) | 2008-08-26 | 2008-08-26 | Backlight module and light-mixing structure thereof |
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| CNA2008102124342A CN101358712A (en) | 2008-08-26 | 2008-08-26 | Backlight module and light-mixing structure thereof |
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| CN2012104382148A Division CN102913855A (en) | 2008-08-26 | 2008-08-26 | Backlight module and light mixing structure thereof |
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| CN101358712A true CN101358712A (en) | 2009-02-04 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102086995A (en) * | 2009-12-08 | 2011-06-08 | 乐金显示有限公司 | Backlight unit and liquid crystal display device having the same |
| CN101832517B (en) * | 2009-03-13 | 2012-12-19 | 鸿富锦精密工业（深圳）有限公司 | Back light module |
| CN102927524A (en) * | 2012-10-29 | 2013-02-13 | 京东方科技集团股份有限公司 | Light mixing component, light guide plate, backlight module and display device |
| CN103017090A (en) * | 2013-01-16 | 2013-04-03 | 深圳市华星光电技术有限公司 | Light leading-in system, side-inlet backlight module and liquid crystal display |
| CN103343923A (en) * | 2013-07-11 | 2013-10-09 | 创维液晶器件(深圳)有限公司 | Backlight module and liquid crystal display device with backlight module |
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2008
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| CN103890647B (en) * | 2011-10-11 | 2017-06-27 | Lg电子株式会社 | Optical module, back light unit and its display device with the optical module |
| CN103890647A (en) * | 2011-10-11 | 2014-06-25 | Lg电子株式会社 | Optical assembly, backlight unit having the same, and display apparatus thereof |
| CN102927524A (en) * | 2012-10-29 | 2013-02-13 | 京东方科技集团股份有限公司 | Light mixing component, light guide plate, backlight module and display device |
| CN102927524B (en) * | 2012-10-29 | 2014-09-17 | 京东方科技集团股份有限公司 | Light mixing component, light guide plate, backlight module and display device |
| CN103017090A (en) * | 2013-01-16 | 2013-04-03 | 深圳市华星光电技术有限公司 | Light leading-in system, side-inlet backlight module and liquid crystal display |
| CN103343923A (en) * | 2013-07-11 | 2013-10-09 | 创维液晶器件(深圳)有限公司 | Backlight module and liquid crystal display device with backlight module |
| CN106066554A (en) * | 2016-06-30 | 2016-11-02 | 京东方科技集团股份有限公司 | A kind of backlight module and display device |
| CN111722434A (en) * | 2019-03-22 | 2020-09-29 | 中强光电股份有限公司 | Light source module and display device |
| CN111812884A (en) * | 2019-04-10 | 2020-10-23 | 中强光电股份有限公司 | Light source module and display device |
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Application publication date: 20090204 |