CN105353561A - Light source device - Google Patents
Light source device Download PDFInfo
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- CN105353561A CN105353561A CN201510922849.9A CN201510922849A CN105353561A CN 105353561 A CN105353561 A CN 105353561A CN 201510922849 A CN201510922849 A CN 201510922849A CN 105353561 A CN105353561 A CN 105353561A
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- Prior art keywords
- light
- light source
- controlling element
- supply apparatus
- top board
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a light source device which comprises a substrate, multiple light sources and multiple light control elements, wherein the light sources are arranged on the substrate; the light control elements are respectively arranged on the substrate corresponding to the light sources; each light control element comprises a top plate and two side plates; the top plates are positioned above the corresponding light sources and have maximum heights relative to the substrate; the two side plates are positioned on two sides of the corresponding light source; each side plate has a first edge and a second edge relative to each other; the top plate is connected between two first edges; the second edge is supported on the substrate; the top plate and the side plates respectively comprise light transmission parts and light reflection parts; a first width is separated by the first edge; a second width is separated by the second edge; the first width and the second width have difference; and the ratio of difference values relative to two times of maximum height is more than 0 and less than 0.6. According to the light source device disclosed by the invention, three-dimensional light control elements capable of standing by utilizing a self-structure are adopted and are arranged above the corresponding light sources, so that known two-dimensional optical control films and lots of separators supporting the optical control films are replaced.
Description
Technical field
The invention relates to a kind of light supply apparatus, relate to a kind of light supply apparatus of backlight module especially.
Background technology
At present, a kind of framework of backlight module is had to be adopt light emitting diode (light-emittingdiode, LED) add the design of optics controlling diaphragm, this optics controlling diaphragm is a high reflectance porous reflector plate, lamp box height can be divided into upper and lower two-layer mixed light district.Wherein, the energy of single light emitting diode can be reassigned to side and be incident to mixed light district, upper strata by the porous structure of optics controlling diaphragm by lower floor's mixed light district.When light after entering mixed light district, upper strata, equivalence can be considered as many light emitting diodes by the porous structure of optics controlling diaphragm, the height distance then via mixed light district, upper strata does the mixed light that many are waited light effect LED.
But under the framework of optics controlling diaphragm, four corners of each district's porous structure (the corresponding light source in a district) all need separator (spacer) to support.When adopt Region control (localdimming) technical design time, backlight module district number the more or size namely need the more separator more greatly, this will cause assemble and Material Cost significantly rise.Further, the die cost of optics controlling diaphragm is high, if cannot reduce die area, increase cost is weakened product competitiveness.
Summary of the invention
In view of this, an object of the present invention is to propose a kind of light supply apparatus that can effectively solve the problem.
In order to achieve the above object, according to one embodiment of the present invention, a kind of light supply apparatus comprises substrate, multiple light source and multiple smooth controlling element.Light source is arranged on substrate.Light controlling element respectively corresponding light source is arranged on substrate.Each smooth controlling element comprises top board and biside plate.Top board is positioned at above corresponding light source.Top board has maximum height relative to substrate.Biside plate is positioned at the both sides of corresponding light source.Each side plate has the first relative edge and the second edge.Top board is connected between the first edge.Second edge is supported on substrate.Top board and side plate respectively have light breakthrough portion and photo-emission part.First edge separates first width.Second edge separates second width.First width and the second width have difference.Difference is be greater than 0 and be less than 0.6 relative to the ratio of twice maximum height.
In one or more embodiment of the present invention, wantonly two neighbors in above-mentioned light source separate a spacing, and this spacing is 1 to 6 times of the first width.
In one or more embodiment of the present invention, the luminous reflectance example of above-mentioned each photo-emission part near the region of corresponding light source is the luminous reflectance example in the region of the light source be greater than away from correspondence, and the light of each smooth breakthrough portion near a region of the light source of correspondence penetrates ratio is that the light in a region of the light source be less than away from correspondence penetrates ratio.
In one or more embodiment of the present invention, above-mentioned each smooth breakthrough portion is multiple perforation, and is the aperture of the perforation of the light source be less than away from correspondence near the aperture of the perforation of corresponding light source.
In one or more embodiment of the present invention, above-mentioned each smooth controlling element is bent by blooming piece to form.Blooming piece have the first broken line and the second broken line.First broken line and the second broken line be arranged in parallel.First broken line and the second broken line lay respectively between top board and side plate.
In one or more embodiment of the present invention, above-mentioned each smooth controlling element is bent by blooming piece to form, and the junction between top board and each side plate is continuous strand sliding surface.
In one or more embodiment of the present invention, above-mentioned top board and the reflectivity of side plate are between 70% to 100%.
In one or more embodiment of the present invention, above-mentioned each smooth controlling element has longer axis parallel in respective top board and side plate, and the major axis of light controlling element is parallel to each other.
In one or more embodiment of the present invention, above-mentioned light supply apparatus also comprises base plate.Base plate has curved surface, and substrate is arranged on curved surface.Curved surface has center of curvature axle.Each smooth controlling element has longer axis parallel in respective top board and side plate, and longer axis parallel is in center of curvature axle.
In one or more embodiment of the present invention, above-mentioned light supply apparatus also comprises base plate.Base plate has curved surface, and substrate is arranged on curved surface.Curved surface has center of curvature axle.Each smooth controlling element has longer axis parallel in respective top board and side plate, and long axis normal is in center of curvature axle.
In sum, light supply apparatus of the present invention adopts the three-dimensional light controlling element that self structure body can be utilized to stand, and is configured at above corresponding light source, with a large amount of separator of the optics controlling diaphragm and support of optical controlling diaphragm that replace known two dimension.Integral material area due to smooth controlling element of the present invention is less than the entire area of the optics controlling diaphragm of known two dimension, and pore quantity is also less, therefore can significantly reduce mould and material cost.In addition, the present invention also for light controlling element physical dimension (such as, upper width, the wide height in below, height etc.) and light source between distance carry out parameter restriction, so as to realizing the uniform object of light energy distribution, and the phenomenon effectively reducing hot spot (Mura) occurs.
The above be only set forth the present invention for the problem solved, the technological means of dealing with problems and effect etc. of producing thereof, detail of the present invention is introduced in detail by embodiment hereafter and relevant drawings.
Accompanying drawing explanation
For above and other object of the present invention, feature, advantage and embodiment can be become apparent, appended the description of the drawings is as follows:
Fig. 1 is the partial side view of the light supply apparatus illustrating an embodiment of the present invention;
Fig. 2 A is the front elevation of the blooming piece illustrating an embodiment of the present invention;
The stereographic map of the light controlling element that Fig. 2 B is converted into for the blooming piece illustrated in Fig. 2 A;
Fig. 3 is the experimental data chart of the first width of illustrating biside plate light controlling element horizontal level-normalized brightness corresponding under different magnitude relationship from the second width;
Fig. 4 is the experimental data chart of the angle-hot spot degree illustrated between side plate in light controlling element and substrate;
Fig. 5 is the side view of the light controlling element illustrating another embodiment of the present invention;
Fig. 6 A is the stereographic map of the light supply apparatus illustrating an embodiment of the present invention, and wherein diffuser plate and prismatic lens group do not illustrate;
Fig. 6 B is the stereographic map of another embodiment of the light supply apparatus illustrated in Fig. 6 A;
Fig. 7 A is the stereographic map of the light supply apparatus illustrated as illustrating another embodiment of the present invention, and wherein diffuser plate and prismatic lens group do not illustrate;
Fig. 7 B is the stereographic map of another embodiment of the light supply apparatus illustrated in Fig. 7 A;
Fig. 8 is the side view illustrating the present invention's light supply apparatus of an embodiment again, and wherein diffuser plate and prismatic lens group do not illustrate.
Embodiment
Below will disclose multiple embodiment of the present invention with accompanying drawing, as clearly stated, the details in many practices will be explained in the following description.But should be appreciated that, the details in these practices is not applied to limit the present invention.That is, in some embodiments of the present invention, the details in these practices is non-essential.In addition, for simplifying for the purpose of accompanying drawing, some known usual structures and element illustrate in the mode simply illustrated in the accompanying drawings.
Please refer to Fig. 1, it is the partial side view of the light supply apparatus 1 illustrating an embodiment of the present invention.As shown in Figure 1, in present embodiment, light supply apparatus 1 comprises substrate 10, multiple light source 11, multiple smooth controlling element 12, diffuser plate 13, prismatic lens group 14 and base plate 15, wherein only illustrates two light sources 11 and two light controlling elements 12 in Fig. 1 exemplarily.The annexation between the detailed construction of these parts, function and each parts will be introduced in detail below.
As shown in Figure 1, in present embodiment, substrate 10 is arranged on base plate 15.Light source 11 is arranged on substrate 10.Light controlling element 12 respectively corresponding light source 11 is arranged on substrate 10.That is, base plate 15 is the housing bottoms as light supply apparatus 1, in order to each parts above weight tray 15.Diffuser plate 13 is arranged at above light controlling element 12.Prismatic lens group 14 is arranged at the side of diffuser plate 13 back to light controlling element 12.
Specifically, each smooth controlling element 12 of light supply apparatus 1 comprises top board 120 and biside plate 121.Top board 120 is positioned at above corresponding light source 11.Biside plate 121 is positioned at the both sides of corresponding light source 11.Each side plate 121 has the first relative edge 121a and the second edge 121b.As shown in Figure 1, the coboundary of each side plate 121 is the first edge 121a, and the lower limb of each side plate 121 is the second edge 121b.Top board 120 is connected between the first edge 121a of biside plate 121.Second edge 121b of biside plate 121 is supported on substrate 10, stands on substrate 10 so as to making light controlling element 12.In present embodiment, can firmly stand on substrate 10 to make light controlling element 12, each smooth controlling element 12 also comprises two extension boards 123, and this two extension board 123 connects the second edge 121b of biside plate 121 respectively, and oppositely extends away from the light source 11 of correspondence.
Please refer to Fig. 2 A and Fig. 2 B.Fig. 2 A is the front elevation of the blooming piece 12 ' illustrating an embodiment of the present invention.The stereographic map of the light controlling element 12 that Fig. 2 B is converted into for the blooming piece 12 ' illustrated in Fig. 2 A.
As shown in Fig. 2 A and Fig. 2 B, in present embodiment, each smooth controlling element 12 of light supply apparatus 1 is bent by blooming piece 12 ' to form.Blooming piece 12 ' has the first broken line 121a ' and the second broken line 121b '.First broken line 121a ' and the second broken line 121b ' be arranged in parallel.Namely position between first broken line 121a ' and the second broken line 121b ' corresponds to the top board 120 in Fig. 2 B.That is, the first broken line 121a ' and the second broken line 121b ' can be considered as the intersection after bending between top board 120 and side plate 121 respectively.When bending blooming piece 12 ' along the first broken line 121a ' with the second broken line 121b ', the first broken line 121a ' and the second broken line 121b ' will be bent into the first edge 121a of the side plate 121 shown in Fig. 2 B.
In addition, blooming piece 12 ' also has tri linear 121c ' and the 4th broken line 121d '.Tri linear 121c ' and the 4th broken line 121d ' are parallel to the first broken line 121a ' and arrange with the second broken line 121b '.Position between first broken line 121a ' and tri linear 121c ' and the position between the second broken line 121b ' and the 4th broken line 121d ' correspond to the biside plate 121 in Fig. 2 B respectively.Tri linear 121c ' corresponds to two extension boards 123 in Fig. 2 B respectively with the position outside the 4th broken line 121d '.That is, tri linear 121c ' and the 4th broken line 121d ' can be considered as the intersection between side plate 121 and extension board 123 respectively.When bending blooming piece 12 ' along tri linear 121c ' with the 4th broken line 121d ', tri linear 121c ' and the 4th broken line 121d ' will be bent into the second edge 121b of the side plate 121 shown in Fig. 2 B.
By the first broken line 121a ' in bending Fig. 2 A, the second broken line 121b ', tri linear 121c ' and the 4th broken line 121d ', the blooming piece 12 ' of two dimension can be bent into the light controlling element 12 of the three-dimensional shown in Fig. 2 B.
In some embodiments, the top board of light controlling element 12 120 and side plate 121 respectively have light breakthrough portion and photo-emission part, and the light that wherein light breakthrough portion can be launched for light source 11 penetrates, and photo-emission part can the light launched of reflection source 11.For example, (namely a part of light that light source 11 is launched can directly penetrate, reflection) top board 120 and the light breakthrough portion of side plate 121 and leave light controlling element 12, and another part light that light source 11 is launched can be reflected by the photo-emission part of top board 120 with side plate 121, and then just leave light controlling element 12 via top board 120 and the light breakthrough portion of side plate 121 carry out one or reflection (such as, being reflected by substrate 10) repeatedly in light controlling element 12 after.That is, the spacing-visible in light controlling element 12 is internal layer mixed light district, and the space (space namely between light controlling element 12 and diffuser plate 13) outside light controlling element 12 can be considered outer mixed light district.The energy of light source 11 can be reassigned to side and be incident to outer mixed light district by light breakthrough portion by internal layer mixed light district.Finally, the light after uniform mixed light can sequentially penetrate outside light supply apparatus 1 through diffuser plate 13 and prismatic lens group 14 again.
In some embodiments, substrate 10 is a reflecting plate, in order to the light carrying out mixed light in light controlling element 12 to be reflexed to as far as possible top board 120 and side plate 121, and then by the light breakthrough portion bright dipping of top board 120 with side plate 121.
Specifically, as shown in Fig. 2 A and Fig. 2 B, each smooth breakthrough portion is multiple perforation 122, therefore when light is by light breakthrough portion after entering outer mixed light district, equivalence can be considered as multiple light source 11, then do the mixed light of multiple equivalent light source via the height distance (height distance namely between light controlling element 12 and diffuser plate 13) in outer mixed light district.Relatively, top board 120 and the position of side plate 121 outside perforation 122, be photo-emission part.
In some embodiments, the luminous reflectance example of each photo-emission part near the region of corresponding light source 11 is the luminous reflectance example in the region of the light source 11 be greater than away from correspondence, and the light of each smooth breakthrough portion near a region of the light source 11 of correspondence penetrates ratio is that the light in a region of the light source 11 be less than away from correspondence penetrates ratio.That is, light controlling element 12 is the closer to the region more not easily printing opacity of the light source 11 of correspondence, and light controlling element 12 is more away from the easier printing opacity in region of the light source 11 of correspondence, the light energy distribution that its object is to make to leave light controlling element 12 is even, avoids the light intensity near the region of light source 11 excessive and occurs away from the problem that the light intensity of light source 11 is too small.
In order to reach the above-mentioned uniform object of light energy distribution making to leave light controlling element 12, in some embodiments, the aperture can designing the perforation 122 making light controlling element 12 near corresponding light source 11 is less than the aperture of the perforation 122 of the light source 11 away from correspondence, as shown in Fig. 2 A and Fig. 2 B.
Return Fig. 1, in present embodiment, first edge 121a of biside plate 121 separates the first width W 1, second edge 121b of biside plate 121 separates the second width W 2, and the first width W 1 between the first edge 121a is greater than the second width W 2 between the second edge 121b (namely, wide at the top and narrow at the bottom, similar inverted trapezoidal).Whereby, the light launched of light source 11 except can through except top board 120 bright dipping, also has a certain proportion of light and can be reflected by top board 120 and by side plate 121 bright dipping.On the contrary, if (namely the first width W 1 between the first edge 121a is less than the second width W 2 between the second edge 121b, up-narrow and down-wide, similar trapezoidal), the light that then light source 11 is launched has certain ratio directly by side plate 121 bright dipping, this will form bright bright line in the region between two light sources 11, made bright dark contrast excessive, was unfavorable for that light supply apparatus 1 makes the uniform object of light energy distribution.
In order to support above-mentioned saying, please refer to Fig. 3, it is the experimental data chart of the first width W 1 of illustrating biside plate light controlling element horizontal level-normalized brightness corresponding under different magnitude relationship from the second width W 2, and wherein the unit of horizontal level is the width of unit pixel (pixel).For example, the width of unit picture element is about 0.3 millimeter, but the present invention is not as limit.Can be known by Fig. 3 and learn, the normalized brightness corresponding to each smooth controlling element horizontal level when the first width W 1 that what curve C 1 represented is is greater than the second width W 2, wherein relative with the difference of the normalized brightness of both sides minimum in the central authorities of light controlling element horizontal level; The normalized brightness corresponding to each smooth controlling element horizontal level when the first width W 1 that what curve C 2 represented is equals the second width W 2, wherein can be larger in the difference of the central authorities of light controlling element horizontal level and the normalized brightness of both sides; The normalized brightness corresponding to each smooth controlling element horizontal level when the first width W 1 that what curve C 3 represented is is less than the second width W 2, then relative with the difference of the normalized brightness of both sides maximum in the central authorities of light controlling element horizontal level.
In some embodiments, between the first width W 1 between the first edge 121a and the second edge 121b, there is difference.Top board 120 has maximum height H relative to substrate 10.Difference is be greater than 0 and be less than 0.6 relative to the ratio of twice maximum height H.By this setting parameter, the angle of angle theta corresponding between side plate 121 and substrate 10 in fact can between 60 degree to 90 degree.
Please refer to Fig. 4, it is the experimental data chart of the angle theta-hot spot degree illustrated between side plate 121 in light controlling element 12 and substrate 10.Can be known by Fig. 4 and learn, when the angle of the angle theta between side plate 121 and substrate 10 is between 60 degree to 90 degree, can effectively reduce hot spot degree.Special, the angle theta between side plate 121 and substrate 10 is about 75 degree time, and hot spot degree can be constrained to minimum.
In some embodiments, wantonly two neighbors in light source 11 separate a spacing P, and this spacing P is 1 to 6 times of the first width W 1 between the first edge 121a.By this setting parameter, the light intensity directly over each smooth controlling element 12 can be made identical in fact with the light intensity in the region between wantonly two adjacent light sources 11, therefore the region between two light sources 11 can be avoided to form bright bright line or excessively dark concealed wire, and light supply apparatus 1 can be reached make the uniform object of light energy distribution.
In some embodiments, the light field type of each light source 11 is lambertian distribution (lambertiandistribution) light type, but the present invention is not as limit.
In some embodiments, the top board 120 of each smooth controlling element 12 and the reflectivity of side plate 121, between 70% to 100%, make light can have preferably conduction efficiency in light controlling element 12, but the present invention are not as limits.
Please refer to Fig. 5, it is the side view of the light controlling element 22 illustrating another embodiment of the present invention.
As shown in Figure 5, in present embodiment, light controlling element 22 also can be bent by the blooming piece 12 ' shown in Fig. 2 A and form, and the junction between top board 220 and each side plate 221 is continuous strand sliding surface.That is, present embodiment latus inframedium 221 does not have the first edge 121a of the side plate 121 in Fig. 1.Under this structural allocation, as shown in Figure 5, top board 220 still has aforesaid maximum height H, top board 220 can be considered aforesaid first width W 1 with the breadth extreme of side plate 221, minimum widith between biside plate 221 can be considered aforesaid second width W 2, therefore adopts the light controlling element 22 of present embodiment can reach according to aforesaid setting parameter equally to make light energy distribution evenly and effectively reduce the object of hot spot degree.
Please refer to Fig. 6 A, it is the stereographic map of the light supply apparatus 1 illustrating an embodiment of the present invention, and wherein diffuser plate 13 and prismatic lens group 14 do not illustrate.As shown in Figure 6A, in present embodiment, each smooth controlling element 12 has longitudinal axis L A and is parallel to respective top board 120 and side plate 121, and the longitudinal axis L A of all smooth controlling elements 12 is parallel to each other.That is, the ornaments orientation of all smooth controlling elements 12 is all consistent.
Please refer to Fig. 6 B, it is the stereographic map of another embodiment of the light supply apparatus 1 illustrated in Fig. 6 A.The light controlling element 12 overlapped before and after any two longitudinal axis L A shown in Fig. 6 A, also can be made of one piece as the single smooth controlling element 12 shown in Fig. 6 B.That is, the light controlling element 12 after one-body molded in Fig. 6 B may correspond to two light sources 11, but the present invention is not as limit.In practical application, the N number of smooth controlling element 12 that also longitudinal axis L A can be overlapped is one-body molded, with simultaneously corresponding N number of light source 11, wherein N be more than or equal to 2 integer.
Please refer to Fig. 7 A, it is the stereographic map of the light supply apparatus 2 illustrated as illustrating another embodiment of the present invention, and wherein diffuser plate 13 and prismatic lens group 14 do not illustrate.As shown in Figure 7 A, in present embodiment, base plate 25 has curved surface 250 (can refer to Fig. 8), and substrate 10 is arranged on curved surface 250.Curved surface 250 has center of curvature axle CA.The longitudinal axis L A of each smooth controlling element 12 is parallel to center of curvature axle CA.That is, light supply apparatus 2 and the difference place of the light supply apparatus 1 of the embodiment shown in Fig. 6 A of present embodiment, be that the base plate 25 in the light supply apparatus 2 of present embodiment has curved surface 250.Therefore, the light supply apparatus 2 of present embodiment can be applicable to the backlight module of flexible displays.Similarly, the ornaments orientation of all smooth controlling element 12 in present embodiment is all consistent, but the present invention is not as limit.
Please refer to Fig. 7 B, it is the stereographic map of another embodiment of the light supply apparatus 2 illustrated in Fig. 7 A.Similarly, the light controlling element 12 overlapped before and after any two longitudinal axis L A shown in Fig. 7 A, also can be made of one piece as the single smooth controlling element 12 shown in Fig. 7 B.That is, the light controlling element 12 after one-body molded in Fig. 7 B may correspond to two light sources 11, but the present invention is not as limit.In practical application, the N number of smooth controlling element 12 that also longitudinal axis L A can be overlapped is one-body molded, with simultaneously corresponding N number of light source 11, wherein N be more than or equal to 2 integer.
Please refer to Fig. 8, for illustrating the side view of the present invention's light supply apparatus 3 of an embodiment again, wherein diffuser plate 13 and prismatic lens group 14 do not illustrate.Light supply apparatus 3 and the difference place of the light supply apparatus 2 of the embodiment shown in Fig. 7 A of present embodiment, be that the longitudinal axis L A of each smooth controlling element 12 in the light supply apparatus 3 of present embodiment is perpendicular to the center of curvature axle CA (namely angle [alpha] is 90 degree) of the curved surface 250 of base plate 25.That is, the ornaments orientation of the light controlling element 12 in present embodiment can change along with the profile of the curved surface 250 of base plate 25.Be noted that, be suitable for standing on the curved surface 250 of base plate 25 to make each smooth controlling element 12, the length of each smooth controlling element 12 on respective longitudinal axis L A can shorten, the position making curved surface 250 contact each smooth controlling element 12 levels off to plane (that is, the bottom comparatively docile (fitting perfectly) of curved surface 250 and light controlling element 12).
By the above detailed description for the specific embodiment of the present invention, can find out significantly, light supply apparatus of the present invention adopts the light controlling element of the three-dimensional that self structure stress can be utilized to stand to be placed in above corresponding light source, therefore can replace the optics controlling diaphragm of known two dimension and a large amount of separator of support of optical controlling diaphragm.Integral material area due to smooth controlling element of the present invention is less than the entire area of the optics controlling diaphragm of known two dimension, and pore quantity is also less, therefore can significantly reduce mould and material cost.In addition, the present invention also for light controlling element physical dimension (such as, upper width, the wide height in below, height etc.) and light source between distance carry out parameter restriction, so as to realizing the uniform object of light energy distribution, and the phenomenon effectively reducing hot spot (Mura) occurs.
Although the present invention discloses as above with embodiment; so it is not in order to limit the present invention; anyly be familiar with this those skilled in the art; without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations, the scope that therefore protection scope of the present invention ought define depending on appending claims is as the criterion.
Claims (10)
1. a light supply apparatus, is characterized in that, comprises:
One substrate;
Multiple light source, is arranged on this substrate; And
Multiple smooth controlling element, corresponding described light source is arranged on this substrate respectively, and respectively this light controlling element comprises:
One top board, be positioned at above this corresponding light source, wherein this top board has a maximum height relative to this substrate; And
Biside plate, be positioned at the both sides of this corresponding light source, respectively this side plate has one first relative edge and one second edge, and this top board is connected between described first edge, described second edge is supported on this substrate, and wherein this top board and described side plate respectively have a smooth breakthrough portion and a photo-emission part;
Wherein said first edge separates one first width, described second edge separates one second width, this first width and this second width have a difference, and this difference is be greater than 0 and be less than 0.6 relative to a ratio of this maximum height of twice.
2. light supply apparatus according to claim 1, is characterized in that, wantonly two neighbors in described light source separate a spacing, and this spacing is 1 to 6 times of this first width.
3. light supply apparatus according to claim 1, it is characterized in that, respectively the luminous reflectance example of this photo-emission part near a region of this corresponding light source is the luminous reflectance example in a region of this light source be greater than away from correspondence, and respectively the light of this light breakthrough portion near a region of this light source of correspondence penetrates ratio is that the light in a region of this light source be less than away from correspondence penetrates ratio.
4. light supply apparatus according to claim 1, is characterized in that, respectively this light breakthrough portion is multiple perforation, and is the aperture of the described perforation of this light source be less than away from correspondence near the aperture of the described perforation of this corresponding light source.
5. light supply apparatus according to claim 1, it is characterized in that, respectively this light controlling element is bent by a blooming piece to form, this blooming piece have one first broken line and one second broken line, this first broken line and this second broken line be arranged in parallel, and this first broken line and this second broken line lay respectively between this top board and described side plate.
6. light supply apparatus according to claim 1, is characterized in that, respectively this light controlling element is bent by a blooming piece to form, and this top board and the junction respectively between this side plate are a continuous strand sliding surface.
7. light supply apparatus according to claim 1, is characterized in that, the reflectivity of this top board and described side plate is between 70% to 100%.
8. light supply apparatus according to claim 1, is characterized in that, respectively this light controlling element has a longer axis parallel in this respective top board and described side plate, and the described major axis of described smooth controlling element is parallel to each other.
9. light supply apparatus according to claim 1, it is characterized in that, also comprise a base plate, this base plate has a curved surface, and this substrate is arranged on this curved surface, wherein this curved surface has a center of curvature axle, and respectively this light controlling element has a longer axis parallel in this respective top board and described side plate, and this longer axis parallel is in this center of curvature axle.
10. light supply apparatus according to claim 1, it is characterized in that, also comprise a base plate, this base plate has a curved surface, and this substrate is arranged on this curved surface, wherein this curved surface has a center of curvature axle, and respectively this light controlling element has a longer axis parallel in this respective top board and described side plate, and this long axis normal is in this center of curvature axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510922849.9A CN105353561A (en) | 2015-12-11 | 2015-12-11 | Light source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510922849.9A CN105353561A (en) | 2015-12-11 | 2015-12-11 | Light source device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105353561A true CN105353561A (en) | 2016-02-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510922849.9A Pending CN105353561A (en) | 2015-12-11 | 2015-12-11 | Light source device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105353561A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761908A (en) * | 2018-03-02 | 2018-11-06 | 友达光电股份有限公司 | Backlight module with light regulation device |
| CN108919563A (en) * | 2018-03-29 | 2018-11-30 | 友达光电股份有限公司 | Backlight module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1877421A (en) * | 2005-06-09 | 2006-12-13 | Lg.菲利浦Lcd株式会社 | Backlight unit and LCD using same |
| JP2007250489A (en) * | 2006-03-20 | 2007-09-27 | Matsushita Electric Works Ltd | Backlight device for liquid crystal display device |
| CN202017959U (en) * | 2011-02-15 | 2011-10-26 | 冠捷显示科技（厦门）有限公司 | Direct illumination LED backlight module group with light mixing apparatus |
| CN103982815A (en) * | 2013-10-03 | 2014-08-13 | 友达光电股份有限公司 | Light source module |
| CN105137652A (en) * | 2015-07-20 | 2015-12-09 | 京东方科技集团股份有限公司 | Diffuser plate, backlight module, and display device |
-
2015
- 2015-12-11 CN CN201510922849.9A patent/CN105353561A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1877421A (en) * | 2005-06-09 | 2006-12-13 | Lg.菲利浦Lcd株式会社 | Backlight unit and LCD using same |
| JP2007250489A (en) * | 2006-03-20 | 2007-09-27 | Matsushita Electric Works Ltd | Backlight device for liquid crystal display device |
| CN202017959U (en) * | 2011-02-15 | 2011-10-26 | 冠捷显示科技（厦门）有限公司 | Direct illumination LED backlight module group with light mixing apparatus |
| CN103982815A (en) * | 2013-10-03 | 2014-08-13 | 友达光电股份有限公司 | Light source module |
| CN105137652A (en) * | 2015-07-20 | 2015-12-09 | 京东方科技集团股份有限公司 | Diffuser plate, backlight module, and display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761908A (en) * | 2018-03-02 | 2018-11-06 | 友达光电股份有限公司 | Backlight module with light regulation device |
| CN108919563A (en) * | 2018-03-29 | 2018-11-30 | 友达光电股份有限公司 | Backlight module |
| CN108919563B (en) * | 2018-03-29 | 2021-07-20 | 友达光电股份有限公司 | Backlight module |
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