CN205665499U - Light -emitting component , backlight unit and display device - Google Patents
Light -emitting component , backlight unit and display device Download PDFInfo
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- CN205665499U CN205665499U CN201620548273.4U CN201620548273U CN205665499U CN 205665499 U CN205665499 U CN 205665499U CN 201620548273 U CN201620548273 U CN 201620548273U CN 205665499 U CN205665499 U CN 205665499U
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- absorbing elements
- light source
- luminescence component
- light absorbing
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Abstract
The utility model provides a light -emitting component, backlight unit and display device. This light -emitting component, including the circuit board and set up at least one luminescence unit above that, the luminescence unit includes and is provided with the light absorption component by the light source on the circuit board, light absorption component around light source setting. This light -emitting component, backlight unit and display device promotes the holistic taste of picture in order to weaken or to eliminate the lamp shadow bright speck.
Description
Technical field
This utility model at least one embodiment relates to a kind of luminescence component, backlight module and display device.
Background technology
Liquid crystal indicator such as TV generally includes display floater and backlight, and backlight is used for providing for display floater
Backlight.According to the difference of the light source position in backlight, backlight includes side-edge type backlight and direct-light-type backlight, straight-down negative
In backlight, multiple light sources are evenly distributed on the non-displaying side of display floater.
Utility model content
At least one embodiment of the present utility model relates to a kind of luminescence component, backlight module and display device, weakening or
Eliminate lamp shadow speck, promote the taste that picture is overall.
At least one embodiment of the present utility model provides a kind of luminescence component, including circuit board and be disposed thereon to
A few luminescence unit, it is characterised in that described luminescence unit includes light source, is provided with light on described circuit board and absorbs unit
Part, described light absorbing elements is arranged around described light source.
At least one embodiment of the present utility model provides a kind of backlight module, including appointing that this utility model embodiment provides
One luminescence component.
At least one embodiment of the present utility model provides a kind of display device, including appointing that this utility model embodiment provides
One backlight module.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, will the accompanying drawing of embodiment be made simple below
Ground is introduced, it should be apparent that, the accompanying drawing in describing below merely relates to embodiments more of the present utility model, rather than to this practicality
Novel restriction.
Fig. 1 a is the schematic diagram of the lamp shadow speck that a kind of display device presents；
Fig. 1 b is the schematic top plan view of the luminescence component of a kind of display device；
A kind of luminescence component schematic diagram that Fig. 2 a provides for this utility model one embodiment；
A kind of luminescence component schematic diagram that Fig. 2 b provides for another embodiment of this utility model；
The schematic top plan view of the luminescence component that Fig. 3 a provides for this utility model one embodiment；
The luminescence component arranging light absorbing elements that Fig. 3 b provides for this utility model one embodiment is under different light emitting angers
Luminous intensity schematic diagram；
The luminescence component being not provided with light absorbing elements that Fig. 3 c provides for this utility model one embodiment is at different light emitting angers
Under luminous intensity schematic diagram；
The schematic top plan view of the luminescence component that Fig. 3 d provides for another embodiment of this utility model；
Fig. 4 a shows for the vertical view of a kind of luminescence component including multiple scattered point that this utility model one embodiment provides
It is intended to；
Fig. 4 b includes the vertical view of the luminescence component of multiple scattered point for the another kind that this utility model one embodiment provides
Schematic diagram；
Fig. 4 c provide for this utility model one embodiment the third include the vertical view of luminescence component of multiple scattered point
Schematic diagram；
There is provided for this utility model one embodiment the 4th kind of Fig. 4 d includes the vertical view of the luminescence component of multiple scattered point
Schematic diagram.
Reference:
01-display floater；02-backboard；03-printed circuit board (PCB)；04-luminescence unit；05-lamp shadow speck；06-reflecting paper；
10-circuit board；20-luminescence unit；201-light source；30-light absorbing elements；202-lens；The installation portion of 2020-lens；40-is anti-
Penetrate layer；The sub-light absorbing elements of 301-first；The sub-light absorbing elements of 302-second；The sub-light absorbing elements of 303-the 3rd.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, new below in conjunction with this practicality
The accompanying drawing of type embodiment, is clearly and completely described the technical scheme of this utility model embodiment.Obviously, described
Embodiment is a part of embodiment of the present utility model rather than whole embodiments.Based on described of the present utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained on the premise of without creative work, all belong to
Scope in this utility model protection.
Unless otherwise defined, this utility model uses technical term or scientific terminology should be belonging to this utility model
There is in field the ordinary meaning that the personage of general technical ability is understood.In this utility model use " first ", " second " and
Similar word is not offered as any order, quantity or importance, and is used only to distinguish different ingredients.Equally,
The similar word such as " one ", " one " or " being somebody's turn to do " does not indicates that quantity limits yet, but represents and there is at least one." include " or
The similar word such as " comprise " and mean to occur that the element before this word or object contain the element occurring in this word presented hereinafter
Or object and equivalent thereof, and it is not excluded for other elements or object." connect " or word that " being connected " etc. is similar not limits
Due to physics or the connection of machinery, but electrical connection can be included, no matter be direct or indirectly.On " ",
D score, "left", "right" etc. are only used for representing relative position relation, and after the absolute position being described object changes, then this is relative
Position relationship is likely to correspondingly change.
In direct-light-type backlight, use many diaphragms scheme cost free competitive advantage.For reducing cost, more enterprise adopts
With individual diaphragm or without diaphragm optical plan.And use individual diaphragm or without diaphragm optical plan in the case of, can bring and cover
Weak effect, the problem of lamp shadow speck weight, for overcoming these problems, backlight is proposed higher technology requirement.
Fig. 1 a shows a kind of display device with direct-light-type backlight, and the non-displaying side of display floater 01 is provided with the back of the body
Plate 02, is provided with printed circuit board (PCB) 03 in backboard 02, printed circuit board (PCB) 03 is evenly distributed with on the surface of display floater
Multiple luminescence units 04.In Fig. 1 a, the upside of display floater 01 is display side, and the downside of display floater 01 is non-displaying side.Fig. 1 a
In illustrate only the luminescence unit 04 at section.Fig. 1 a also show lamp shadow speck 05.It is also provided with anti-in backboard 01
Penetrate paper 06.Fig. 1 b shows the schematic top plan view of the luminescence component of display device.The luminescence component of display device includes printing
Circuit board 03 and the multiple luminescence units 04 being disposed thereon.
This utility model at least one embodiment provides a kind of luminescence component, as shown in Figure 2 a, including circuit board 10 and set
Putting at least one luminescence unit 20 thereon, luminescence unit 20 includes light source 201, is provided with light on the circuit board 10 and absorbs unit
Part 30, light absorbing elements 30 is arranged around light source 201.It should be noted that one Fig. 2 a illustrate only on circuit board 10
Luminescence unit 20, other luminescence unit can refer to this graph structure.Light absorbing elements 30 is configured to absorb luminescence unit central part
The light divided.
Because luminous intensity is relatively big above light source 201, display floater occurring the probability of lamp shadow speck is the biggest, this practicality is new
The embodiment of type, by arranging light absorbing elements 30 on light source 201 peripheral circuit plate 10, can absorb luminescence unit 20 central part
Light splitter, weakens the brightness in luminescence unit centre, so that luminescence unit centre and the luminance difference of edge
Different reduction.Such as brightness above light source 201 can be optimized to consistent or basically identical with peripheral brightness, thus weaken or eliminate aobvious
The lamp shadow speck of showing device, promotes the taste that picture is overall.
Such as, light source 201 includes light-emitting diode chip for backlight unit.Light-emitting diode chip for backlight unit herein such as refers to through encapsulation
Light-emitting diode chip for backlight unit.Such as, the lighting angle of light source 201 can be 360 °, the light emitting anger of setting light source on the circuit board 10
Degree can be 180 °, but is not limited to this.
Such as, circuit board 10 includes printed circuit board (PCB).
Such as, the reflectance of light absorbing elements 30 is less than the reflectance of other position of circuit board 10.Such that it is able to absorb
Light, weakens the brightness in luminescence unit centre so that luminescence unit centre reduces with the luminance difference of edge.Example
As, the reflectivity range of light absorbing elements 30 can be 5%-80%, and the most such as the reflectivity range of light absorbing elements 30 can
For 5%-50%, the reflectivity range of light absorbing elements 30 can be 10%-30%, but be not limited to this.
As shown in Figure 2 b, in order to improve the utilization rate of light, in certain embodiments, circuit board 10 is provided with the anti-of white
Penetrating layer 40, light absorbing elements 30 is arranged on reflecting layer 40.Such as, the reflectance in reflecting layer 40 of white more than 98%, from
And, it is possible to obtain higher light utilization efficiency.The reflecting layer for example, hydrops ink layer of white, but it is not limited to this.
As shown in Fig. 2 a, 2b, in certain embodiments, luminescence unit 20 also includes that lens 202, lens 202 are fixed on electricity
On road plate 10 and be arranged on outside light source 201.Such as, lens 202 can be bondd on the circuit board 10 by installation portion 2020.Such as,
Lens 202 are secondary optical lens.Such as, lens 202 include that refraction type lens, light transmission refraction type lens rely primarily on refraction
Anaclasis is gone out by the refraction of formula lens.Such as, light source 201 can be located at the center of lens.The setting of lens 202 can be with converged light
And improve the utilization rate of light, but it should be recognized that also can be not provided with lens, this is not limited by embodiment of the present utility model
Fixed.After arranging refraction type lens, the light emitting anger scope of luminescence unit is about-80 ° to 80 °.Such as, the light of circuit board 10 is arrived
In (such as including light that light source 201 sends, by the light of reflection from lens, the light etc. that reflected by blooming piece), absorbed by light
Element 30 absorbs a part, reduces the reflectance at light absorbing elements 30 position, thus can weaken luminescence unit center
The brightness at position so that luminescence unit centre reduces with the luminance difference of edge.
As shown in Fig. 2 a, 2b, in certain embodiments, light absorbing elements 30 orthographic projection on the circuit board 10 falls into lens
In 202 orthographic projections on the circuit board 10, and it is positioned at outside light source 201 orthographic projection on the circuit board 10.Thus, can be beneficial to cut
The brightness in weak light unit 20 centre, so that luminescence unit centre reduces with the luminance difference of edge.
As shown in Figure 3 a, in certain embodiments, the shape of light absorbing elements 30 includes the closing arranged around light source 201
Ring.The ring closed such as includes annulus, but is not limited to this.Such as, light absorbing elements 30 is the circle with light source 201 as the center of circle
Ring.
In certain embodiments, the absorptivity of light absorbing elements 30 is definite value.That is, from the position near light source 201
To the position away from light source 201, the absorptivity of light absorbing elements 30 is definite value.
In one embodiment, light source 201 is light-emitting diode chip for backlight unit, and light source 201 is outside equipped with lens 202, circuit board
Being provided with the reflecting layer 40 of white on 10, light absorbing elements 30 is arranged on reflecting layer 40, the absorptivity of light absorbing elements 30
For definite value, the annulus of the closing being shaped as arranging around light source 201 of light absorbing elements 30.The situation of light absorbing elements 30 is set
Under, the luminosity curve under the different lighting angles of light-emitting diode chip for backlight unit is as shown in Figure 3 b.It is not provided with light absorbing elements 30
Situation (in addition to being not provided with light absorbing elements 30, other is identical with the situation arranging light absorbing elements 30) under, light-emitting diodes
Luminosity curve under the different lighting angles of die is as shown in Figure 3 c.From Fig. 3 b and Fig. 3 c it can be seen that light absorbs unit
The reduction being provided with the beneficially luminance difference of luminescence unit centre and edge of part 30, is conducive to promoting picture product
Taste.Can also find out from Fig. 3 b and Fig. 3 c, in the case of light absorbing elements 30 is set, the brightness of marginal area be not provided with light
The numerical value difference of the brightness in the case of absorber element 30 is little.
As shown in Figure 3 d, in certain embodiments, light absorbing elements 30 includes many sub-light absorbing elements, shown in Fig. 3 d
First sub-light absorbing elements the 301, the second sub-light absorbing elements 302 arranged away from light source 201 successively and the 3rd sub-light absorb
Element 303, from the position near light source 201 to the position away from light source 201, many height light of light absorbing elements 30 absorbs
The absorptivity of element is gradually lowered.Such as, the absorptivity of every sub-light absorbing elements is definite value.Such as, many height light is inhaled
Receive element at and the absorptivity identical with the material on Radius with light source as the center of circle as definite value.Such as, light absorbing elements 30
At least one of atrament, brown materials, blue material, grey matter, but it is not limited to this.Such as, the first sub-light is inhaled
Receiving element 301 is atrament, and the second sub-light absorbing elements 302 is brown materials, and the 3rd sub-light absorbing elements 303 is gray
Matter, but it is not limited to this.It should be noted that the number of sub-light absorbing elements is not limited to above-mentioned enumerating.
As shown in fig. 4 a, in certain embodiments, the shape of light absorbing elements 30 include around light source 201 arrange multiple
Scattered point.The figure of light absorbing elements 30 can also be as shown in Fig. 4 b, 4c.As shown in Figure 4 b, multiple scattered points can be in
Aplysia punctata dissipates setting around light source 201.As illustrated in fig. 4 c, multiple scattered points can be evenly arranged.Such as, around light source
Annulus in the range of be evenly arranged.
As shown in figure 4d, in certain embodiments, light absorbing elements 30 includes many sub-light absorbing elements, shown in Fig. 4 d
First sub-light absorbing elements the 301, the second sub-light absorbing elements 302 arranged away from light source 201 successively and the 3rd sub-light absorb
Element 303, first sub-light absorbing elements the 301, second sub-light absorbing elements 302 and the 3rd sub-light absorbing elements 303 include respectively
Multiple multiple scattered points arranged around light source 201.From the position near light source 201 to the position away from light source 201,
The absorptivity of light absorbing elements 30 is gradually lowered.
Embodiment of the present utility model provide luminescence component can coordinate individual or multiple blooming pieces, it is also possible to not with
Blooming piece with the use of, this is not construed as limiting by embodiment of the present utility model.
Arranging position for light absorbing elements 30, in the case of being not provided with light absorbing elements 30, luminous intensity is more than
The position of the average of light emitting anger (such as-80 ° to 80 °) inner glow intensity, can arrange light absorbing elements 30, but be not limited to
This.
For shape or the figure of light absorbing elements 30, can select, according to the luminous intensity of light-emitting component, the shape that is suitable for
Or figure.In embodiment of the present utility model, illustrate as a example by the light source 201 of rectangle, the light absorbing elements 30 of annular,
Light absorbing elements 30 also can use the tetracyclic ring that the shape of the light source with rectangle is corresponding, and embodiment of the present utility model is to this
It is not construed as limiting.
Such as, light absorbing elements 30 can be around light source 201 symmetry arrangement.So that the light of luminescence unit outgoing is more
For uniformly, but embodiment of the present utility model is not limited to this.
Light absorbing elements 30 can be formed by the way of printing, the most on circuit boards after printing light absorbing elements 30,
Light-emitting diode chip for backlight unit is welded on circuit boards, in the case of lens are set, then lens is bonded in electricity by a glue mode
On the plate of road.
This utility model at least one embodiment provides a kind of backlight module, including any of the above-described luminescence component.
Such as, backlight module includes down straight aphototropism mode set.
This utility model at least one embodiment provides a kind of display device, including any of the above-described backlight module.
Display device such as includes TV, but is not limited to this.
The backlight module of this utility model embodiment offer and display device, because having described in this utility model embodiment
Arbitrary luminescence component, then the light absorbing elements by arranging on light source peripheral circuit plate absorbs luminescence unit central part light splitting
Line, weakens the brightness in luminescence unit centre, so that the luminance difference of luminescence unit centre and edge subtracts
Little.And then, brightness above light source can be optimized to consistent or basically identical with peripheral brightness, thus weaken or eliminate display device
Lamp shadow speck, promote the taste that picture is overall.
Have following some need explanation:
(1), unless otherwise defined, in embodiment of the present utility model and accompanying drawing, same label represents same implication.
(2), in this utility model embodiment accompanying drawing, the structure related to this utility model embodiment is related only to, other
Structure refers to be commonly designed.
(3) for clarity, in the accompanying drawing for describing embodiment of the present utility model, the thickness quilt in layer or region
Amplify.Be appreciated that when the element of such as layer, film, region or substrate etc be referred to as being positioned at another element " on " or during D score,
This element can be positioned at " directly " another element " on " or D score, or intermediary element can be there is.
(4) in the case of not conflicting, the feature in same embodiment of the present utility model and different embodiment can phase
Combination mutually.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model does not limit to
In this, any those familiar with the art, in the technical scope that this utility model discloses, can readily occur in change
Or replace, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with described power
The protection domain that profit requires is as the criterion.
Claims (15)
1. a luminescence component, including circuit board and at least one luminescence unit of being disposed thereon, it is characterised in that described
Luminescence unit includes light source, is provided with light absorbing elements on described circuit board, and described light absorbing elements sets around described light source
Put.
Luminescence component the most according to claim 1, it is characterised in that the shape of described light absorbing elements includes around described
The ring of closing that light source is arranged or the multiple scattered point arranged around described light source.
Luminescence component the most according to claim 1, it is characterised in that described light absorbing elements absorptivity is definite value.
Luminescence component the most according to claim 1, it is characterised in that described light absorbing elements is arranged around described source symmetric
Cloth.
Luminescence component the most according to claim 1, it is characterised in that from the position near described light source to away from described
The position of light source, the absorptivity of described light absorbing elements is gradually lowered.
Luminescence component the most according to claim 1, it is characterised in that described light absorbing elements includes atrament, brown
At least one of material, blue material, grey matter.
Luminescence component the most according to claim 1, it is characterised in that described luminescence unit also includes lens, described lens
It is fixed on described circuit board and is arranged on outside described light source.
Luminescence component the most according to claim 7, it is characterised in that described lens include refraction type lens.
Luminescence component the most according to claim 7, it is characterised in that described light absorbing elements on described circuit board just
Projection falls in the orthographic projection on described circuit board of the described lens, and is positioned at the just throwing on described circuit board of the described light source
Outside shadow.
10. according to the luminescence component described in any one of claim 1-9, it is characterised in that be provided with white on described circuit board
Reflecting layer, described light absorbing elements is arranged on described reflecting layer.
11. according to the luminescence component described in any one of claim 1-9, it is characterised in that described circuit board includes printed circuit
Plate.
12. according to the luminescence component described in any one of claim 1-9, it is characterised in that described light source includes light emitting diode
Chip.
13. 1 kinds of backlight modules, it is characterised in that include the luminescence component described in any one of claim 1-12.
14. backlight modules according to claim 13, it is characterised in that described backlight module includes downward back optical mode
Group.
15. 1 kinds of display devices, it is characterised in that include the backlight module described in any one of claim 13 or 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620548273.4U CN205665499U (en) | 2016-06-07 | 2016-06-07 | Light -emitting component , backlight unit and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620548273.4U CN205665499U (en) | 2016-06-07 | 2016-06-07 | Light -emitting component , backlight unit and display device |
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| Publication Number | Publication Date |
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| CN205665499U true CN205665499U (en) | 2016-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620548273.4U Active CN205665499U (en) | 2016-06-07 | 2016-06-07 | Light -emitting component , backlight unit and display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340552A (en) * | 2017-08-22 | 2017-11-10 | 广州创维平面显示科技有限公司 | A kind of lens and down straight aphototropism mode set |
| WO2017211224A1 (en) * | 2016-06-07 | 2017-12-14 | 京东方科技集团股份有限公司 | Light-emitting assembly for backlight module, backlight module and display device |
| CN110082952A (en) * | 2016-10-27 | 2019-08-02 | 船井电机株式会社 | Display device |
| CN113363367A (en) * | 2020-03-06 | 2021-09-07 | 隆达电子股份有限公司 | Light emitting diode structure |
-
2016
- 2016-06-07 CN CN201620548273.4U patent/CN205665499U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017211224A1 (en) * | 2016-06-07 | 2017-12-14 | 京东方科技集团股份有限公司 | Light-emitting assembly for backlight module, backlight module and display device |
| US10330978B2 (en) | 2016-06-07 | 2019-06-25 | Boe Technology Group Co., Ltd. | Light emission assembly of backlight module, backlight module and display device |
| CN110082952A (en) * | 2016-10-27 | 2019-08-02 | 船井电机株式会社 | Display device |
| CN107340552A (en) * | 2017-08-22 | 2017-11-10 | 广州创维平面显示科技有限公司 | A kind of lens and down straight aphototropism mode set |
| CN113363367A (en) * | 2020-03-06 | 2021-09-07 | 隆达电子股份有限公司 | Light emitting diode structure |
| US11894503B2 (en) | 2020-03-06 | 2024-02-06 | Lextar Electronics Corporation | Light emitting diode device |
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