CN110488535A - Light source assembly and the backlight module for using it - Google Patents
Light source assembly and the backlight module for using it Download PDFInfo
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- CN110488535A CN110488535A CN201910789564.0A CN201910789564A CN110488535A CN 110488535 A CN110488535 A CN 110488535A CN 201910789564 A CN201910789564 A CN 201910789564A CN 110488535 A CN110488535 A CN 110488535A
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- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 description 9
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- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
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- 230000005540 biological transmission Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
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- 238000005553 drilling Methods 0.000 description 1
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Classifications
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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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of light source assemblies, are applied to direct type backlight module.Light source assembly includes light emitting diode and lens.Lens are set to above the light emitting diode, and including ontology and multiple socles.Ontology has the upper surface and the lower surface, and wherein upper surface is curved surface, and lower surface centre is concave up equipped with groove.The corresponding top for being located at light emitting diode of groove system.Socle is set to the lower surface of ontology, and these socles make the light-emitting surface of light emitting diode and the lower surface of ontology generate spacing in the direction in vertical light-emitting face.
Description
Technical field
Present invention is directed to a kind of backlight module display technology, especially a kind of light source group that can change light splitting angle
Part.
Background technique
In recent years, with the development of display technology, light emitting diode (light emitting diodes, LED) is in liquid crystal
Application on the backlight module (backlight module) of display (liquid crystal display, LCD) is also gradually
It is taken seriously.
The type of backlight module common at present includes direct type backlight module and side light type back light module.It is common it is straight under
Formula backlight module system equably configures it on reflecting plate using light emitting diode as light source, passes through light source upper
The other assemblies such as square diffuser plate are delivered evenly on whole display panel.
Direct type backlight module compared to side light type back light module application over the display, have preferable local dimming,
Transmission uniformity, light and shade details be good and the advantages such as contrast, but its disadvantage is to need the light source assembly of higher density (as sent out
Optical diode), therefore compared to side light type back light module, direct type backlight module needs higher cost and power consumption,
The display volume of application is thicker.
In order to will be inexpensive, change light emitting diode using the external form of lens and go out the subtended angle of light and reach the effect of uniform mixed light
Fruit, and then go to pull open the pitch between light emitting diode, with setting quantity needed for reducing light emitting diode.
But when the quantity of light emitting diode is very few, the side for dimming picture can be led to because backlight segmentation is not careful enough
Edge has halation phenomenon (Halo effect), and the corner edge of backlight module causes as light source can not be transmitted effectively
The phenomenon that dark angle dark side.
Summary of the invention
In one embodiment, a kind of light source assembly applied to direct type backlight module, comprising light emitting diode and thoroughly
Mirror.This lens system is set to above the light emitting diode.This lens includes ontology and multiple socles.Ontology have upper surface and under
Surface, wherein upper surface is curved surface, and lower surface centre is concave up equipped with groove.This groove system is corresponding to be located at light-emitting diodes
The top of pipe position.Multiple socles are set to the lower surface of ontology, these socles make the light-emitting surface and ontology of light emitting diode
Lower surface generates spacing in the direction in vertical light-emitting face.
In one embodiment, a kind of backlight module includes reflecting plate, multiple light sources component and diffuser plate.Multiple light sources group
Part is set on the reflecting plate.These light source modules include light emitting diode and lens, and wherein lens are set to light-emitting diodes
Above pipe.This lens includes ontology and multiple socles.This ontology has the upper surface and the lower surface, wherein and upper surface is curved surface, and
Lower surface centre is concave up to be equipped with groove.The corresponding top for being located at LED positions of this groove system.Socle is set to this
The lower surface of body, between these socles generate the light-emitting surface of light emitting diode and the lower surface of ontology in the direction in vertical light-emitting face
Away from.Diffuser plate is set to above these light source modules, wherein the spacing positioned at each light source assembly of the center of reflecting plate is different
In the spacing of each light source assembly with the marginal zone for being located at reflecting plate.
In view of this, the present invention provides a kind of light source assembly and a kind of backlight module, the light-emitting surface according to light emitting diode
The different light sources that can make light emitting diode from the lower surface of lens body perpendicular to the spacing that the direction of light-emitting surface generates are penetrated
After entering lens recess, the light-emitting angle reflected difference, and then go to reduce reduce light source assembly quantity after caused by halation
The dark angle dark side problem of phenomenon and backlight module.
Detailed description of the invention
Fig. 1 is the light source assembly cross-sectional view of one embodiment of the invention.
Fig. 2 is the lens perspective view of one embodiment of the invention.
Fig. 3 is the light source assembly use state diagram of the backlight module of one embodiment of the invention.
Fig. 4 is the socle perspective view of another embodiment of the present invention.
Fig. 5 is that the light source assembly of the backlight module of another embodiment of the present invention places schematic diagram.
Wherein, appended drawing reference:
100 light source assembly, 110 lens
120 ontology, 121 upper surface
122 lower surface, 130 socle
Ladder-like 131 first ladder of socle of 130A
132 second ladder, 140 groove
150 light emitting diode, 160 light-emitting surface
200 backlight module, 210 reflecting plate
211 hole, 220 diffuser plate
L socle height H spacing
P LED bottom is to light-emitting surface height
R slot opening radius
R shines radius surface
The marginal zone E (Edge area)
C central area (Central area)
The marginal zone D1 light source assembly pitch
D2 central area light source assembly pitch
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Fig. 1 and Fig. 2 is please referred to, in the present embodiment, light source assembly 100 includes lens 110 and light emitting diode
150.Lens 110 include ontology 120 and multiple socles 130.Ontology 120 has upper surface 121 and lower surface 122.In this implementation
In example, the upper surface 121 of ontology 120 is that curved surface can pass through so that light emitting diode 150 injects the light of lens 110
When being projected after ontology 120 by upper surface 121, biggish light-emitting angle can be obtained because of refraction effect.But the song of upper surface 121
Face form is not particularly limited, curved surface that can be as shown in this embodiment, also or the curved surface of center indent etc., in response to optical path demand
And it makes and changes.And as shown in Figure 1,122 centre of lower surface of ontology 120 is concave up to be equipped with groove 140.When lens 110 are corresponding
When being mounted on 150 top of light emitting diode, groove 140 will be corresponded to positioned at the surface of light emitting diode 150.
Multiple socles 130 are respectively coupled to lower surface 122.In the present embodiment, though the quantity of socle 130 with two for illustrate
It explains, but is not limited thereto.Socle 130 be at least two be in order to keep 110 left-right balance of lens, quantity can for 2,
3,4 or 5 or more, to reach the purpose of balance.Socle 130 will make between the light-emitting surface 160 of light emitting diode 150 and lower surface 122
In generation spacing H on the direction in vertical light-emitting face 160.
In the present embodiment, when the height of socle 130 is come high compared with the height of light emitting diode 150, then this time is away from H
For positive value.But in some state sample implementations, spacing H might be less that zero, i.e. spacing H are negative value.When spacing H is less than zero, i.e.,
Indicate that the height of socle 130 is come short compared with the height of light emitting diode 150, light emitting diode 150 will be partly located at this time
In groove 140.
Whereby, it can use the length of the socle 130 in such as adjustment light source assembly 100 to change in light source assembly 100
Spacing H size between lens 110 and light emitting diode 150, and then influence 150 light source of light emitting diode is gone to pass through lens 110
The light-emitting angle reflected.So that it takes up a position, for example, when being asked in order to which the dark angle dark side of halation phenomenon and corner edge can be reduced
When inscribing, and using the light source assembly 100 of larger light-emitting angle, it can reach by the height of adjustment socle 130, without
Make or develop the lens 110 with different refractivity.This manner it is also possible to simplify manufacturing process or exploitation time-histories.
Again referring to Fig. 1, in the present embodiment, the socle height of lens 110 is L, and the bottom surface of light emitting diode 150 is extremely
The height of light-emitting surface 160 is P, then between socle height L, height P and spacing H, need to meet L=H+P, and L > 0.Also, it is
The light that light emitting diode 150 is issued all effectively is incident in groove 140, to reflect by lens 110
It goes, is r when light-emitting surface 160 is round and radius therefore, the opening of groove 140 at 120 lower surface 122 of ontology is circle
And radius be R when, following equation need to be met:
H<(R-r)/tan 30°…(1)。
Since the light source that the light-emitting surface 160 of light emitting diode 150 is issued can inject groove 140, and the sheet through lens 110
Body 120 is projected after reflecting by the upper surface 121 of lens 110.Therefore, once spacing H is excessive, then in 160 or so two side of light-emitting surface
The light issued will not be emitted directly toward into groove 140, but can be injected into the lower surface 122 of ontology 120 and be caused portion
Part reflection.That is, above-mentioned 130 height L of socle will have certain limitation because of spacing H, i.e. L < P+ (R-r)/30 ° of tan.
When socle is excessively high, the light source transmission path of light emitting diode 150 exceeds 140 radius R of groove, will cause light source from lens 110
Downside light leakage influences light source performance.In this way, by the waste for the light for causing light emitting diode 150 to be issued.So spacing H
If the limitation that height is able to satisfy above-mentioned formula (1) is preferred.When spacing H is larger, light source is greater than from the light-emitting angle that ontology 120 projects
Light-emitting angle when spacing H is smaller.
Referring to Fig. 3, Fig. 3 show the use shape using the light source assembly 100 of the above-mentioned backlight module 200 of the present embodiment
State schematic diagram.Backlight module 200 includes multiple light sources component 100, reflecting plate 210 and diffuser plate 220.The light source of the present embodiment
Component 100, which can be, to be directly arranged on reflecting plate 210, or multiple light sources component 100 is first formed a plurality of striation
Mode, then striation is arranged one by one on reflecting plate 210.In addition, reflecting plate 210 also not necessarily will be plate, it can also
To be the reflecting layer for plating white paint again on circuit boards and forming tool reflecting effect, and then form reflecting plate 210.In addition, in Fig. 3
To clearly illustrate, it is simplified length and directly illustrates the single light source component 100 of central area C and the single light of left and right edges area E
Source component 100.
Light source assembly 100 is set on reflecting plate 210.Diffuser plate 220 is above light source assembly 100 and reflecting plate 210.
Light emitting diode 150 will be coupled directly to reflecting plate 210, and the socle 130 of lens 110 is then directly arranged on reflecting plate 210.
It can be divided on entire reflecting plate 210 close to the central area C (Central area) of central part and by proximal edges or corner
Marginal zone E (Edge area).And in the present embodiment, the light source assembly 100 of centrally located area C, its spacing H can be different from
Positioned at the spacing H of the light source assembly 100 of marginal zone E.
It is relatively sharp for image that the central area C of picture is presented, it needs in central area C with lesser light-emitting angle
Light source refract to diffuser plate 220, at this time, it may be necessary to spacing H is adjusted to lesser value, so that light-emitting angle can be smaller.
In addition to it is aforementioned can be other than the height L by being directly changed socle 130, can also be as shown in figure 3, having on reflecting plate 210 more
A hole 211, the quantity of these holes 211 can be the quantity of corresponding above-mentioned socle 130, or only be arranged in the position of needs
Required amount of hole 211.And the socle 130 of the lens 110 of light source assembly 100 is then to be set to 210 surface of reflecting plate (as schemed
3 are set to the light source assembly 100 of marginal zone E) or wear penetrate in hole 211 that (such as Fig. 3 is set to the light source group of central area C respectively
Part 100).
It is arranged in hole 211 by by the socle 130 of the lens 110 of centrally located area C, it can so that ontology 120
Lower surface 122 closer to light-emitting surface 160, i.e. diminution spacing H.That is, when needing to change spacing H, it is only necessary to change
The depth of hole 211.In this way, the light source assembly 100 that unified specification can be used is mounted on entire backlight module 200
Any position makes the various lens with different socle height L without the setting position according to light source assembly 100
110, to reduce the quantity of element manufacture.
In addition, due to needing to refract to diffuser plate 220 with biggish light-emitting angle in marginal zone E, light source is more effective
Ground is communicated to 200 corner of backlight module, and then the phenomenon that reduction dark angle dark side.Therefore, compared to central area C, it is located at marginal zone E
Light source assembly 100 lens 110 and light emitting diode 150 between spacing H need to be the larger value, and then amplify light source go out light
Angle.It in the present embodiment, is using in the marginal zone E of reflecting plate 210 being not provided with hole 211, but directly with foot
Column 130 is set on 210 surface of reflecting plate at the E of marginal zone, so that the spacing H of the more centrally located area C of spacing H is greater.
In addition, in order to be to meet formula above-mentioned (1), when socle 130 can also be directly mounted on reflecting plate 210
Meet the socle height L of above-mentioned formula (1) as preset socle height L.Then again according to required in phase is arranged on reflecting plate 210
Same or different depth hole 211, to meet 100 Setting pattern of light source assembly required for central area C or marginal zone E.
Furthermore in the present embodiment, above-mentioned hole 211 can also help light source group other than can be to adjust spacing H
Part 100 positions, and improves the precision of placement position, avoids eccentricity issues.
In order to reduce the dark angle dark side problem of halation phenomenon and corner edge, in addition to the height of such as above-mentioned adjustment socle 130
Or change except size of the depth of hole 211 to adjust above-mentioned spacing H (please referring to Fig. 1), in another embodiment, socle
130 shape be it is ladder-like, this ladder-like socle 130A may include multiple ladders.
Referring to Fig. 4, Fig. 4 show the socle perspective view of another embodiment of the present invention.The present embodiment and previous embodiment
Identical structure and element, which will not be repeated again, to be repeated.The difference is that the shape of socle.To clearly illustrate, Fig. 4 is ladder-like
The schematic diagram of socle 130A with the presentation of two ladder of minimum number, but is not limited thereto, can also use three ranks, quadravalence on demand
Or more.Ladder-like socle 130A is from top to bottom set in sequence comprising the first ladder 131, the second ladder 132, wherein the first ladder
131 width is greater than the width of the second ladder 132.
In another embodiment, above-mentioned ladder-like socle 130A can also be corresponded to anti-in addition to can be set on reflecting plate 210
The hole 211 of plate 210 is penetrated, aperture can be set greater than the width of the second ladder 132 according to required by these holes 211
And less than the width of the first ladder 131, and the depth in aperture can also be according to the corresponding ladder height of ladder-like socle 130A
Setting, is threaded through the different ladders of ladder-like socle 130A in the hole 211 in different apertures.
In this way, by the width of each ladder of above-mentioned ladder-like socle 130A and the setting of height, can achieve with
The same effect of aforementioned socle 130, and compared to column socle (as shown in Fig. 2, but socle 130 be not only restricted to cylindric), rank
Scalariform socle 130A has widely application and advantage.For example, when using the socle with more multi-ladder, it can be according to being arranged
Socle, adjust the aperture of corresponding hole 211, after socle is put into, i.e., can by block at required ladder, without
Whether the depth for considering hole 211 is too deep, or because tolerance may cause the different problem of depth.Alternatively, when in face of having
The hole 211 of same apertures width, ladder-like socle 130A have the height using different ladder widths adjustment light source assembly 100
Degree.
Referring to Fig. 5, Fig. 5 is the placement schematic diagram of the light source assembly 100 of the backlight module 200 of another embodiment, wherein
Light source assembly 100 has socle 130A described in another embodiment.Backlight module 200 includes multiple light sources component 100, reflecting plate
210 and diffuser plate 220.Wherein light source assembly 100 is set on reflecting plate 210, and diffuser plate 220 light source assembly 100 with
And 210 top of reflecting plate.Light source assembly 100 can as it is aforementioned be directly to be arranged on reflecting plate 210, or by multiple light
Source component 100 first forms a plurality of striation, then striation is arranged on reflecting plate 210.Reflecting plate 210, diffuser plate 220 and light source
Component 100 all has preceding feature in addition to socle is ladder-like socle 130A.In addition, being also simplification in Fig. 5 to clearly illustrate
Length and directly illustrate the right two light source assemblies 100 for being central area C and the left side be marginal zone E two light source assemblies 100 between
Pitch (D1 and D2).
In another embodiment, the light source assembly 100 of centrally located area C is by by the second ladder of ladder-like socle 130A
132 are threaded through on reflecting plate 210 and change the height of socle to reduce aforementioned spacing H, and project the light source of smaller light-emitting angle with
Concentrate light source to central area C.And marginal zone E makes the spacing H with higher of light source assembly 100 by being not provided with hole 211, and penetrates
The light source of larger light-emitting angle reduces the phenomenon that dark angle dark side to edge out.
Referring again to Fig. 5, the light source assembly 100 of central area C refracts to diffuser plate 220 with the light source of lesser light-emitting angle
On, need greater number of light source assembly 100 to achieve the effect that uniform mixed light because light-emitting angle is smaller, so light source assembly
Comparatively dense is distributed between 100, wherein the mutual pitch of light source assembly 100 is D2.And the light source assembly 100 of marginal zone E has light
Angle is larger, required negligible amounts be can reach the effect of uniform mixed light, therefore light source assembly 100 be distributed it is sparse, wherein
The mutual pitch of light source assembly 100 is D1.When the distribution density of the light source assembly 100 of central area C is close greater than the distribution of marginal zone E
When spending, D2 < D1.
Therefore, being not necessary to production has the backlight module 200 of hole 211 of different height, only needs to consider system in production
The ladder-like socle 130A of the different ladder widths of the light source assembly 100 of one specification changes boring aperture, can be directed to different need
The setting of backlight module 200 asked has the light source assembly 100 of different spacing H, and reduces cost of manufacture.In addition, another embodiment
Also light source assembly 100 can be helped to position using drilling as above-described embodiment, improves the precision of placement position, avoided partially
Heart problem, while reducing the influence to drill for reflecting plate 210.
In conclusion light source assembly 100 provided by according to an embodiment of the present invention and backlight module 200, can use
Hole 211 in the length of socle 130 in light source assembly 100, the reflecting plate 210 of shape collocation backlight module 200 influences light
Spacing H size in source component 100 between lens 110 and light emitting diode 150, and then it is logical to influence 150 light source of light emitting diode
Cross the light-emitting angle that lens 110 reflect.That is, the height of adjustment lens can be removed according to the demand of backlight module different location
It is low, and then go to change light-emitting angle.Therefore, it when marginal zone E uses the light source assembly 100 of larger light-emitting angle, can reduce
The dark angle dark side problem of halation phenomenon and corner edge.
In addition, the configuration of the shape, size, ratio and interelement of element and relative distance etc. are only to illustrate in schema,
Its position or sequence can be adjusted or be existed simultaneously up and down, be to understand the present invention for the art tool usually intellectual to be used,
Rather than practical range of the invention is limited.
Technology contents of the invention are disclosed with preferred embodiment as above-mentioned, and however, it is not to limit the invention, any
Be familiar with this those skilled in the art, do not depart from spirit of the invention do it is a little change and retouch, should all be covered by scope of the invention
It is interior, therefore protection scope of the present invention should be defined by the scope of the appended claims.
Claims (15)
1. a kind of light source assembly, which is characterized in that be applied to bottom-lighting type back light module, include:
One light emitting diode；And
One lens are set to above the light emitting diode, which includes an ontology and multiple socles, which has table on one
Face and a lower surface, the upper surface are a curved surface, and the lower surface centre is concave up to be equipped with a groove, and groove system correspondence is located at
The top of the LED positions, those socles are set to the lower surface of the ontology, those socles make the light emitting diode
A light-emitting surface and the lower surface of the ontology generate a spacing in the direction of the vertical light-emitting surface.
2. light source assembly as described in claim 1, which is characterized in that respectively the socle includes one first ladder and a second-order
Ladder is from top to bottom set in sequence, and first ladder width is greater than second ladder width.
3. light source assembly as described in claim 1, which is characterized in that when the height of each socle is L, which is H, and should
When the height of the bottom surface of light emitting diode to the light-emitting surface is P, L=H+P, and L > 0 need to be met.
4. light source assembly as claimed in claim 3, which is characterized in that when the light-emitting surface is round and radius is r, the groove in
When an opening at the lower surface of the ontology is circle and radius is R, following equation need to be met:
H<(R-r)/tan 30°。
5. light source assembly as described in claim 1, which is characterized in that when the spacing is less than zero, which is somebody's turn to do
Light-emitting surface is located in the groove.
6. light source assembly as described in claim 1, which is characterized in that the light source of the light emitting diode injects the groove, and passes through
It is projected after the ontology refraction of the lens by the ontology of the lens.
7. a kind of backlight module, characterized by comprising:
One reflecting plate；
Multiple light sources component is set on the reflecting plate, and respectively the light source assembly includes:
One light emitting diode；And
One lens are set to above the light emitting diode, which includes an ontology and multiple socles, which has table on one
Face and a lower surface, the upper surface are a curved surface, and the lower surface centre is concave up to be equipped with a groove, and groove system correspondence is located at
The top of the LED positions, those socles are set to the lower surface of the ontology, those socles make the light emitting diode
A light-emitting surface and the lower surface of the ontology generate a spacing in the direction of the vertical light-emitting surface；And
One diffuser plate is set to above those light source assemblies；
Wherein, positioned at the center of the reflecting plate the respectively light source assembly the spacing be different from be located at the reflecting plate edge
The spacing of the respectively light source assembly in area.
8. backlight module as claimed in claim 7, which is characterized in that there are multiple holes on the reflecting plate, those holes
Quantity system corresponds to the quantity setting of those socles, those socles of the respectively light source assembly is made to be set to the surface of the reflecting plate or divide
It is not arranged in the hole.
9. backlight module as claimed in claim 8, which is characterized in that respectively the socle includes one first ladder and a second-order
Ladder is from top to bottom set in sequence, and the width of first ladder is greater than the width of second ladder, corresponding with the respectively socle to be somebody's turn to do
The aperture of hole is the width greater than second ladder and the width for being less than first ladder.
10. backlight module as claimed in claim 7, which is characterized in that those light source groups positioned at the center of the reflecting plate
The distribution density of part is greater than the distribution density of those light source assemblies positioned at the marginal zone of the reflecting plate.
11. backlight module as claimed in claim 7, which is characterized in that those light source groups positioned at the center of the reflecting plate
The spacing of part is less than the spacing of those light source assemblies positioned at the marginal zone of the reflecting plate.
12. backlight module as claimed in claim 7, which is characterized in that when the height of each socle is L, which is H, and
When the height of the bottom surface of the light emitting diode to the light-emitting surface is P, L=H+P, and L > 0 need to be met.
13. backlight module as claimed in claim 12, which is characterized in that when the light-emitting surface is round and radius is r, the groove
When an opening at the lower surface of the ontology is circle and radius is R, following equation need to be met:
H<(R-r)/tan 30°。
14. backlight module as claimed in claim 7, which is characterized in that when the spacing is less than zero, which is somebody's turn to do
Light-emitting surface is located in the groove.
15. backlight module as claimed in claim 7, which is characterized in that the light source of the light emitting diode injects the groove, and passes through
It is projected after the ontology refraction of the lens by the ontology of the lens.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW108103646A TWI666479B (en) | 2019-01-30 | 2019-01-30 | Light-source module and backlight module using thereof |
| TW108103646 | 2019-01-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110488535A true CN110488535A (en) | 2019-11-22 |
| CN110488535B CN110488535B (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910789564.0A Active CN110488535B (en) | 2019-01-30 | 2019-08-26 | Light source assembly and backlight module using same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110488535B (en) |
| TW (1) | TWI666479B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW202028789A (en) | 2020-08-01 |
| TWI666479B (en) | 2019-07-21 |
| CN110488535B (en) | 2022-02-11 |
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