CN205372230U - Back bias structure and lighting system and display device of being shaded - Google Patents
Back bias structure and lighting system and display device of being shaded Download PDFInfo
- Publication number
- CN205372230U CN205372230U CN201620003177.1U CN201620003177U CN205372230U CN 205372230 U CN205372230 U CN 205372230U CN 201620003177 U CN201620003177 U CN 201620003177U CN 205372230 U CN205372230 U CN 205372230U
- Authority
- CN
- China
- Prior art keywords
- light source
- light
- distribution lens
- described light
- backlight structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model relates to an optical lens technical field, concretely relates to back bias structure and lighting system and display device of being shaded, the back bias structure, including setting up light source and the grading lens on the PCB board, its characterized in that: be provided with on the grading lens and be used for holding the light source for cavity of light source, the light source welding is in on the PCB board, light source for cavity's lower edge with perpendicular distance between the face of weld is L, the luminous component lower edge of light source with perpendicular distance between the face of weld is Y, and L is less than or equals Y. The utility model provides a back bias structure can reduce or directly avoid the light source to send light and jets out from the clearance between grading lens and the PCB board, but also can avoid when improving the light utilization ratio, still having guaranteed the homogeneity in illumination region in light that the light source sent gets into the grading lens by the bottom surface incident of grading lens.
Description
Technical field
This utility model relates to optical lens technical field, is specifically related to a kind of backlight structure and backlight illuminating system and display device.
Background technology
For, in current display device, being mostly required for relating to backlight structure, for instance current liquid crystal television structure.For backlight structure, current usual structure is: include substrate, substrate is arranged some lighting sources, in order to enable backlight structure to provide uniform and meet the illuminating ray of design lighting requirement, in current backlight structure, it is additionally provided with the light that light source sends by lens arrangement and carries out secondary distribution, the corresponding light source of each lens, it is ensured that the uniformity in illumination region.
Along with going deep into of research, inventors herein have recognized that, the backlight structure of said structure still also exists deficiency, being characterized in particular in: in said structure, lens arrangement is typically with the mode of welding and is arranged on substrate, reliable for the convenience welded and welding quality, it is additionally provided with locating dowel in the bottom of lens, in manufacture process, locating dowel is welded on substrate, it is achieved fixing lens.
The backlight structure of said structure, for the light source that low-angle is luminous, is use, but works as the problem existing for avoiding for the light source that wide-angle is luminous.
The LED light source such as found broad application at present, the lighting angle of LED light source is relatively big, can generally achieve 120 degree～140 degree, even bigger；Some point sources, its lighting angle is typically over 180 degree.When this kind of light source uses with current backlight structure, due in current backlight structure, the bottom of lens is provided with locating dowel, after locating dowel is welded on substrate, a bigger gap is certainly existed bottom lens and between substrate, high angle scattered light during light source is emitted beam can penetrate from this gap, first the light utilization efficiency to light source it is reduction of, simultaneously, this some light is penetrated by this gap, not by the constraint of lens and control, also directly affects the illuminating effect of backlight structure；
When the light source adopted is the light source that side can emit beam, the deficiency that above-mentioned backing structure causes is just more obvious, reason is in that: when the lateral emitting of light source, there is substantial amounts of optics corresponding with the gap bottom lens, this some light directly bottom lens and between substrate gap injection lens, not only reduce the utilization rate of light source, also directly affects the illuminating effect of backlight structure；
Especially, when light source luminescent angle is bigger, light source that can be luminous especially for side, in its light sent, some is corresponding with the bottom surface of lens, and this some light direct irradiation, in the bottom surface of lens, is directly refracted into lens from lens base, then it is mixed among illuminating ray then through after the reflection of lens or refraction from exit facet injection, so, not only make the form accuracy in illumination region be difficult to control to, but also directly affects the uniformity in illumination region.
So, based on above-mentioned, need one at present badly and be applicable not only to low-angle light source, but also the light source that wide-angle is luminous can be applicable to, and be applicable to the backlight structure of the light source of lateral emitting.
Summary of the invention
The purpose of this utility model is in that: for current backlight structure exist can not the deficiency of well suited luminous in wide-angle and Side emitting light sources, it is provided that a kind of backlight structure that can be applicable to wide-angle illuminating source and Side emitting light sources.
Backlight structure, including the light source being arranged on pcb board and light-distribution lens, described light-distribution lens is provided with the light source for holding described light source and holds chamber, described light source is welded on described pcb board, the vertical dimension that described light source holds between lower edge and the described solder side in chamber is L, vertical dimension between luminous component lower edge and the described solder side of described light source is that Y, L are less than or equal to Y.
In the such scheme of the application, the vertical dimension that light source holds between lower edge and the solder side in chamber is L, vertical dimension between luminous component lower edge and the described solder side of described light source is Y, L is less than or equal to Y, make, when the light source of the light source that light source is wide-angle luminescence or lateral emitting, compared to current backlight structure, the backlight structure of the application can reduce or directly avoid light source to emit beam from the gap injection between light-distribution lens and pcb board, make, while improving the application backlight structure light utilization efficiency, also reduce or avoid and penetrate the light impact on illuminating effect from the gap between light-distribution lens and pcb board；
Another further aspect, the backlight structure of the application, owing to L is less than or equal to Y, directly avoid light source and emit beam from the possibility within light-distribution lens bottom surface entrance light-distribution lens, so, the form accuracy not only making illumination region can reliably be controlled, but also further improves the uniformity in illumination region.
As preferably, L is less than or equal to 0.3mm.
In this application, light source includes luminous component and luminous component is encapsulated in interior packed part, structure based on current light source luminescent part and packed part, inventors herein have recognized that, when L-value is less than or equal to 0.3mm, can trying one's best and many make light source emit beam to be radiated at inside light-distribution lens, the light further improving the application backlight structure utilizes, and improves the illuminating effect of backlight structure.
As preferably, described light source is the entire combination of LED luminous component and packed part.
As preferably, it is symmetrical structure that described light-distribution lens and light source hold chamber, and it is be positioned at the groove bottom described light-distribution lens that described light source holds chamber, and the central axis that the central axis of described light-distribution lens holds chamber with described light source coincides.
In such scheme, it is symmetrical structure that light-distribution lens and light source hold chamber, the central axis of light-distribution lens and light source hold the central axis in chamber and coincide, and further ensure the uniformity of the light that light-distribution lens reflects, improve the illuminating effect of the application backlight structure further.
As preferably, described light source holds lower edge and other position flush of described light-distribution lens bottom surface or the bottom surface protruding from described light-distribution lens in chamber.
In the such scheme of the application, light source holds lower edge and other position flush of light-distribution lens bottom surface or the bottom surface protruding from light-distribution lens in chamber, further Reliable guarantee light source holds the relative position between chamber lower edge and light source solder side, and in the fabrication process, it is also convenient for the installation of light-distribution lens.
As preferably, the bottom surface of described light-distribution lens is done atomization and is processed.
As preferably, the bottom surface of described light-distribution lens is additionally provided with location structure, and described light-distribution lens is connected on described pcb board by described location structure.
Location structure is set in light-distribution lens bottom surface, in backlight structure manufacture process, conveniently light-distribution lens is arranged on pcb board.
As preferentially, described location structure protrudes from the bottom surface of described light-distribution lens.Further facilitate the connection between light-distribution lens and pcb board.
As preferably, described light source is the LED light source that side has light to send.
As preferably, described LED light source is CSP light source or the LED light source thus deforming the multifaceted light-emitting.
In this application, owing to backlight structure have employed said structure, and then make, in this application, the LED light source that side has light to send can be adopted, such as CSP light source or the LED light source thus deforming the multifaceted light-emitting, while improving illuminating effect, there is the light that light source side can be utilized to send, improve the light utilization efficiency of the application backlight structure.
Disclosed herein as well is a kind of backlight illuminating system:
Include pcb board, described pcb board is provided with above-mentioned backlight structure.
The backlight illuminating system of the application, owing to which employs above-mentioned backlight structure so that, its light source adopted, being possible not only to is the luminous light source of common low-angle, the light source that wide-angle is luminous can also be adopted, such as point source and area source, and side can be luminous light source, when adopting above-mentioned light source, while improving illuminating effect, additionally it is possible to utilize the optics that high angle scattered light or side send, improve the light utilization efficiency of light source.
Disclosed herein as well is a kind of display device:
Include above-mentioned backlight structure or above-mentioned backlight illuminating system.
The display device of the application, it is possible to for the display device of TV, display screen or other employing backlight structure.
In sum, owing to have employed technique scheme, the application provides the benefit that:
Compared to current backlight structure, the backlight structure of the application can reduce or directly avoid light source to emit beam from the gap injection between light-distribution lens and pcb board, make, while improving the application backlight structure light utilization efficiency, also reduce or avoid and penetrate the light impact on illuminating effect from the gap between light-distribution lens and pcb board；And, directly avoid light source and emit beam from the possibility within light-distribution lens bottom surface entrance light-distribution lens, so, not only make the form accuracy in illumination region reliably to be controlled, but also further improve the uniformity in illumination region.
Accompanying drawing explanation
Fig. 1 is the structural representation of the application backlight illuminating system；
Fig. 2 is the partial enlarged drawing at A place in Fig. 1；
Fig. 3 is the structural representation that light source holds when chamber lower edge protrudes from light-distribution lens bottom surface；
Fig. 4 is the partial enlarged drawing at B place in Fig. 3,
Labelling in figure: 1-PCB plate, 2-light source, 3-light-distribution lens, 4-light source holds chamber, 5-solder side, the central axis of 6-light-distribution lens, 7-location structure, 8-bottom surface.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
Embodiment 1: as Figure 1-4,
Backlight structure, including the light source 2 being arranged on pcb board 1 and light-distribution lens 3, it is characterized in that: described light-distribution lens 3 is provided with the light source for holding described light source 2 and holds chamber 4, described light source 2 is welded on described pcb board 1, the vertical dimension that described light source holds between lower edge and the described solder side 5 in chamber 4 is L, vertical dimension between luminous component lower edge and the described solder side 5 of described light source 2 is that Y, L are less than or equal to Y.
In the such scheme of the present embodiment, the vertical dimension that light source holds between lower edge and the solder side 5 in chamber 4 is L, vertical dimension between luminous component lower edge and the described solder side 5 of described light source 2 is Y, L is less than or equal to Y, make, when the light source 2 of the light source 2 that light source 2 is wide-angle luminescence or lateral emitting, compared to current backlight structure, the backlight structure of the present embodiment can reduce or directly avoid light source 2 to emit beam from the gap injection between light-distribution lens 3 and pcb board 1, make, while improving the present embodiment backlight structure light utilization efficiency, also reduce or avoid and penetrate the light impact on illuminating effect from the gap between light-distribution lens 3 and pcb board 1.
As preferably, L is less than or equal to 0.3mm.
In the present embodiment, light source 2 includes luminous component and luminous component is encapsulated in interior packed part, structure based on current light source 2 luminous component and packed part, inventor have found that of the present embodiment, when L-value is less than or equal to 0.3mm, can try one's best many make light source 2 emit beam to be radiated at light-distribution lens 3 internal, the light further improving the present embodiment backlight structure utilizes, and improves the illuminating effect of backlight structure.
As preferably, the entire combination that described light source 2 is LED luminous component and packed part of the present embodiment.
As preferably, it is symmetrical structure that described light-distribution lens 3 and light source hold chamber 4, and it is be positioned at the groove bottom described light-distribution lens 3 that described light source holds chamber 4, and the central axis that the central axis 6 of described light-distribution lens 3 and described light source hold chamber 4 coincides.
In such scheme, it is symmetrical structure that light-distribution lens 3 and light source hold chamber 4, the central axis that the central axis 6 of light-distribution lens 3 and light source hold chamber 4 coincides, and further the uniformity of the light that guarantee light-distribution lens 3 reflects, improves the illuminating effect of the present embodiment backlight structure further.
As preferably, described light source holds lower edge and other position flush of described light-distribution lens 3 bottom surface 8 or the bottom surface 8 protruding from described light-distribution lens 3 in chamber 4.
In the such scheme of the present embodiment, light source holds lower edge and other position flush of light-distribution lens 3 bottom surface 8 or the bottom surface 8 protruding from light-distribution lens 3 in chamber 4, further Reliable guarantee light source holds the relative position between chamber 4 lower edge and light source 2 solder side 5, and in the fabrication process, it is also convenient for the installation of light-distribution lens 3.
As preferably, the bottom surface 8 of described light-distribution lens 3 is done atomization and is processed.
As preferably, the bottom surface 8 of described light-distribution lens 3 is additionally provided with location structure 7, and described light-distribution lens 3 is connected on described pcb board 1 by described location structure 7.
Location structure 7 is set in light-distribution lens 3 bottom surface 8, in backlight structure manufacture process, conveniently light-distribution lens 3 is arranged on pcb board 1.
As preferentially, described location structure 7 protrudes from the bottom surface 8 of described light-distribution lens 3.Further facilitate the connection between light-distribution lens 3 and pcb board 1.
As preferably, the LED light source 2 that described light source 2 has light to send for side.
As preferably, described LED light source 2 is CSP light source 2 or the LED light source 2 thus deforming the multifaceted light-emitting.
In the present embodiment, owing to backlight structure have employed said structure, and then make, in the present embodiment, the LED light source 2 that side has light to send can be adopted, for instance CSP light source 2 or thus deform the LED light source 2 of the multifaceted light-emitting, while improving illuminating effect, there is the light that light source 2 side can be utilized to send, improve the light utilization efficiency of the present embodiment backlight structure.
Embodiment 2, as Figure 1-4,
A kind of backlight illuminating system: include pcb board 1, described pcb board 1 is provided with above-mentioned backlight structure.
The backlight illuminating system of the present embodiment, owing to which employs above-mentioned backlight structure so that, the light source 2 that it adopts, being possible not only to is the luminous light source 2 of common low-angle, the light source 2 that wide-angle is luminous can also be adopted, such as point source 2 and area source 2, and side can be luminous light source 2, when adopting above-mentioned light source 2, while improving illuminating effect, additionally it is possible to utilize the optics that high angle scattered light or side send, improve the light utilization efficiency of light source 2.
Embodiment 3, as Figure 1-4,
A kind of display device: include above-mentioned backlight structure or above-mentioned backlight illuminating system.
The display device of the present embodiment, it is possible to for the display device of TV, display screen or other employing backlight structure.
All any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.
Claims (10)
1. backlight structure, including the light source being arranged on pcb board and light-distribution lens, it is characterized in that: described light-distribution lens is provided with the light source for holding described light source and holds chamber, described light source is welded on described pcb board, the vertical dimension that described light source holds between lower edge and the solder side in chamber is L, vertical dimension between luminous component lower edge and the described solder side of described light source is that Y, L are less than or equal to Y.
2. backlight structure according to claim 1, it is characterised in that: L is less than or equal to 0.3mm.
3. backlight structure according to claim 1, it is characterized in that: it is symmetrical structure that described light-distribution lens and light source hold chamber, it is be positioned at the groove bottom described light-distribution lens that described light source holds chamber, and the central axis that the central axis of described light-distribution lens holds chamber with described light source coincides.
4. backlight structure according to claim 3, it is characterised in that: described light source holds lower edge and other position flush of described light-distribution lens bottom surface or the bottom surface protruding from described light-distribution lens in chamber.
5. backlight structure according to claim 1, it is characterised in that: the bottom surface of described light-distribution lens is done atomization and is processed.
6. the backlight structure according to claim 1-5 any one, it is characterised in that: the bottom surface of described light-distribution lens is additionally provided with location structure, and described light-distribution lens is connected on described pcb board by described location structure.
7. backlight structure according to claim 6, it is characterised in that: described light source is the entire combination of LED luminous component and packed part.
8. the backlight structure according to claim 1-5 any one, it is characterised in that: described light source is the LED light source that side has light to send.
9. a backlight illuminating system, it is characterised in that: include pcb board, described pcb board is arranged just like the backlight structure described in claim 1-8 any one.
10. a display device, it is characterised in that: include the backlight structure as described in claim 1-8 any one or backlight illuminating system as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620003177.1U CN205372230U (en) | 2016-01-05 | 2016-01-05 | Back bias structure and lighting system and display device of being shaded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620003177.1U CN205372230U (en) | 2016-01-05 | 2016-01-05 | Back bias structure and lighting system and display device of being shaded |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205372230U true CN205372230U (en) | 2016-07-06 |
Family
ID=56274890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620003177.1U Active CN205372230U (en) | 2016-01-05 | 2016-01-05 | Back bias structure and lighting system and display device of being shaded |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205372230U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465689A (en) * | 2016-01-05 | 2016-04-06 | 成都恒坤光电科技有限公司 | Backlight illumination structure, backlight illumination system and display device |
-
2016
- 2016-01-05 CN CN201620003177.1U patent/CN205372230U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465689A (en) * | 2016-01-05 | 2016-04-06 | 成都恒坤光电科技有限公司 | Backlight illumination structure, backlight illumination system and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104583668B (en) | Illumination lens of LED backlight, light emitting device, surface light source device, and display device | |
| CN202927738U (en) | LED optical lens and LED backlight module | |
| US20060221611A1 (en) | Back light unit and liquid crystal display employing the same | |
| CN106151924B (en) | A kind of spreadlight lens and LED bar graph lamp | |
| CN105156941A (en) | Backlight module and display device | |
| CN103162192B (en) | A kind of down straight aphototropism mode set | |
| CN102937268A (en) | Light guide plate, backlight module and display device | |
| CN104864314A (en) | Side light-emitting LED panel lamp without light guide plate | |
| US20140321155A1 (en) | Light Guide Plate Structure Controlling Uniformity from Central Portion to Edge, and Lighting Lamp Using Same | |
| CN104421832A (en) | Lens and light-emitting element comprising same | |
| CN205372230U (en) | Back bias structure and lighting system and display device of being shaded | |
| US9746709B2 (en) | Backlight unit and display apparatus including the same | |
| CN108603646A (en) | Lamps apparatus for vehicle | |
| CN103994395A (en) | Led optical system and lamp | |
| KR102264373B1 (en) | ellipsoid wide angle backlit lens | |
| CN206504274U (en) | A kind of CSP backlights lens | |
| CN103292246B (en) | A kind of blooming piece, backlight module and display device | |
| CN205137109U (en) | Light source module | |
| JP2015115380A (en) | LED light-emitting device | |
| CN105715997A (en) | LED floodlight | |
| CN102980075B (en) | LED (Light-emitting Diode) large-angle light distribution device and LED bulb | |
| KR101469620B1 (en) | Led lens for flood light of sign board | |
| CN202303040U (en) | LED (Light-Emitting Diode) projector | |
| CN213019206U (en) | Panel light capable of emitting light uniformly | |
| CN205026461U (en) | LED outdoor lighting lamps and lanterns |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |