CN208804542U - A kind of direct-light type LED backlight mould group of secondary light-distribution - Google Patents
A kind of direct-light type LED backlight mould group of secondary light-distribution Download PDFInfo
- Publication number
- CN208804542U CN208804542U CN201821560907.3U CN201821560907U CN208804542U CN 208804542 U CN208804542 U CN 208804542U CN 201821560907 U CN201821560907 U CN 201821560907U CN 208804542 U CN208804542 U CN 208804542U
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- China
- Prior art keywords
- light
- distribution
- chamber
- cambered surface
- mould group
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Abstract
The utility model discloses a kind of direct-light type LED backlight mould group of secondary light-distribution, reflect the spheric reflection chamber that backlight upper surface is laid with indent, LED light group be installed on the spheric reflection it is intracavitary and with the spheric reflection chamber bottom part from setting；Diffusion component includes light-mixing element, diffuser plate, diffusion barrier, and diffuser plate bottom is laid with the cambered surface diffusion chamber of indent, the light-mixing element of polyhedron prism structure be installed on the cambered surface diffusion chamber and with it is separately positioned at the top of the cambered surface diffusion chamber；Cambered surface diffusion chamber is located at secondary light-distribution lens inside bottom, which includes the reflecting part for being set to two sidewalls and the refraction part being integrally formed at the top of the reflecting part.The direct-light type LED backlight mould group of the secondary light-distribution of the utility model effectively shortens light mixing distance, so that mould group is thinner, the phenomenon that dark space is caused due to light source component is made up, realizes becoming larger for light emitting angle, luminous intensity is more evenly distributed, and reduces the cost of straight-down negative display.
Description
Technical field
The utility model belongs to the direct-light type LED backlight mould group of LED component field more particularly to a kind of secondary light-distribution.
Background technique
It is increasing to occupy specific gravity for the market share of light-emitting diode display at present.And the type of skill is broadly divided into two kinds, one is
The advantages of side-light type light-emitting diode display, another is direct-light type LED backlight display, traditional side-light type is exactly that can do more
Thin, LED number is reduced；The disadvantage is that the uniformity of light will rely on light guide plate, therefore cost increase.The advantages of straight-down negative is the equal of light
Even property is good, and color developing effect is high-quality；Disadvantage is not allowed to be easy to do thin, and LED number is on the high side, higher cost.
Utility model content
The purpose of this utility model is to provide a kind of direct-light type LED backlight mould groups of secondary light-distribution, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides the following technical solutions:
A kind of direct-light type LED backlight mould group of secondary light-distribution, including the LED for reflecting backlight, being set to reflection backlight
Lamp group, the diffusion component being set at the top of reflection backlight, the secondary light-distribution lens for being set to diffusion component bottom, reflect backlight
Plate upper surface is laid with the spheric reflection chamber of indent, LED light group be installed on the spheric reflection it is intracavitary and with the spheric reflection bottom of chamber
Portion is separately positioned；
Diffusion component includes light-mixing element, diffuser plate, diffusion barrier, and diffuser plate bottom is laid with the cambered surface diffusion chamber of indent,
The light-mixing element of polyhedron prism structure be installed on the cambered surface diffusion chamber and with it is separately positioned at the top of cambered surface diffusion chamber；
Cambered surface diffusion chamber is located at secondary light-distribution lens inside bottom, which includes be set to two sidewalls anti-
The refraction part penetrating portion and being integrally formed at the top of the reflecting part.
Further, the light-mixing element bottom of the polyhedron prism structure opposite with spheric reflection bottom of chamber portion is that oblique angle face is saturating
The light-mixing element top of mirror structure, the polyhedron prism structure opposite with cambered surface diffusion chamber bottom is oblique angle face lens arrangement.
Further, adjacent spheric reflection chamber, which is connected, is arranged.
Further, the reflection backlight position setting refraction prism surrounded by the spheric reflection chamber for the setting that is connected.
Further, reflecting part tilts outward along cambered surface diffusion chamber bottom to top-direction, and refraction part is two reflection of connection
The lens curve in portion.
Further, cambered surface diffusion chamber is gradually become smaller by bottom to apical curvature radius.
The direct-light type LED backlight mould group of the secondary light-distribution of the utility model effectively shortens light mixing distance, so that mould group is thick
Degree is thinner, makes up the phenomenon that causing dark space due to light source component, realizes becoming larger for light emitting angle, and luminous intensity is more evenly distributed, drop
The low cost of straight-down negative display.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the direct-light type LED backlight mould group of secondary light-distribution provided by the embodiment of the utility model；
Fig. 2 is reflection backlight board structure schematic diagram provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of light-mixing element provided by the embodiment of the utility model；
Fig. 4 is secondary light-distribution fiber line schematic diagram provided by the embodiment of the utility model；
Fig. 5 is the layout drawing of cambered surface diffusion chamber provided by the embodiment of the utility model；
In figure: 1, reflecting backlight；2, spheric reflection chamber；3, LED light group；4, light-mixing element；5, diffuser plate；6, cambered surface expands
Dissipate chamber；7, secondary light-distribution lens；8, diffusion barrier；9, prism is reflected；10, reflecting part；11, refraction part.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-Fig. 5:
A kind of direct-light type LED backlight mould group of secondary light-distribution including reflection backlight 1, is set to reflection backlight 1
LED light group 3, the diffusion component for being set to 1 top of reflection backlight, the secondary light-distribution lens 7 for being set to diffusion component bottom, instead
The spheric reflection chamber 2 that 1 upper surface of backlight is laid with indent is penetrated, adjacent spheric reflection chamber 2, which is connected, to be arranged；By the setting that is connected
The reflection backlight position setting refraction prism 10 that spheric reflection chamber 2 surrounds；LED light group 3 is installed in the spheric reflection chamber 2
And it is separately positioned with 2 bottom of spheric reflection chamber；Diffusion component includes light-mixing element 4, diffuser plate 5, diffusion barrier 8,5 bottom of diffuser plate
Portion is laid with the cambered surface diffusion chamber 6 of indent, the light-mixing element 4 of polyhedron prism structure be installed on the cambered surface diffusion chamber 6 and with this
6 top of cambered surface diffusion chamber is separately positioned；4 bottom of light-mixing element of the polyhedron prism structure opposite with 2 bottom of spheric reflection chamber
It is tiltedly to press from both sides at the top of the light-mixing element 4 of the polyhedron prism structure opposite with 6 bottom of cambered surface diffusion chamber for oblique angle face lens arrangement
Edged surface lens arrangement；Cambered surface diffusion chamber 6 is located at 7 inside bottom of secondary light-distribution lens, which includes being set to two
The reflecting part 10 of side wall and the refraction part 11 for being integrally formed at 10 top of reflecting part；Reflecting part 10 is along 6 bottom of cambered surface diffusion chamber
It is tilted outward to top-direction, refraction part 11 is to connect the lens curve of two reflecting parts 10；Cambered surface diffusion chamber 6 is by bottom to top
Portion's radius of curvature gradually becomes smaller.
When light source module group works, light is broadly divided into direct path, refraction path and reflection path, shooting angle angle compared with
Small light is reflected via 5 direct projection of light-mixing element 4 and diffuser plate, the biggish light of shooting angle angle via spheric reflection chamber 2
And diffuser plate 5 is diffused out by the refraction of cambered surface diffusion chamber 6 after the refraction of light-mixing element 4, light mixing distance is effectively shortened, so that mould group
It is thinner, it can be by light refraction as much as possible to diffuser plate 5, to make up since light source component causes by refraction prism 9
The phenomenon that dark space, carries out secondary light-distribution by reflecting part 10 and refraction part 11, realizes becoming larger for light emitting angle, while luminous intensity
It is more evenly distributed, it is no longer necessary to realize high luminous intensity and good light distribution effect by increasing LED number, reduce
The cost of straight-down negative display.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of direct-light type LED backlight mould group of secondary light-distribution including reflection backlight (1), is set to reflection backlight (1)
LED light group (3), the diffusion component being set at the top of reflection backlight (1), the secondary light-distribution lens for being set to diffusion component bottom
(7), which is characterized in that reflection backlight (1) upper surface is laid with the spheric reflection chamber (2) of indent, and LED light group (3) is installed on
It is in the spheric reflection chamber (2) and separately positioned with spheric reflection chamber (2) bottom；
Diffusion component includes light-mixing element (4), diffuser plate (5), diffusion barrier (8), and diffuser plate (5) bottom is laid with the cambered surface of indent
Diffusion chamber (6), the light-mixing element (4) of polyhedron prism structure be installed on the cambered surface diffusion chamber (6) and with the cambered surface diffusion chamber (6)
Top is separately positioned；Cambered surface diffusion chamber (6) is located at secondary light-distribution lens (7) inside bottom, which includes setting
The refraction part (11) for being placed in the reflecting part (10) of two sidewalls and being integrally formed at the top of the reflecting part (10).
2. the direct-light type LED backlight mould group of secondary light-distribution as described in claim 1, which is characterized in that with spheric reflection chamber (2) bottom
Light-mixing element (4) bottom of the opposite polyhedron prism structure in portion is oblique angle face lens arrangement, with cambered surface diffusion chamber (6) bottom
It is oblique angle face lens arrangement at the top of the light-mixing element (4) of opposite polyhedron prism structure.
3. the direct-light type LED backlight mould group of secondary light-distribution as described in claim 1, which is characterized in that adjacent spheric reflection chamber
(2) be connected setting.
4. the direct-light type LED backlight mould group of secondary light-distribution as described in claim 1, which is characterized in that by the spherical surface for the setting that is connected
Reflection backlight position setting refraction prism (9) that reflection cavity (2) surrounds.
5. the direct-light type LED backlight mould group of secondary light-distribution as described in claim 1, which is characterized in that reflecting part (10) is along cambered surface
Diffusion chamber (6) bottom tilts outward to top-direction, and refraction part (11) is to connect the lens curve of two reflecting parts (10).
6. the direct-light type LED backlight mould group of secondary light-distribution as described in claim 1, which is characterized in that cambered surface diffusion chamber (6) is the bottom of by
Portion gradually becomes smaller to apical curvature radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821560907.3U CN208804542U (en) | 2018-09-25 | 2018-09-25 | A kind of direct-light type LED backlight mould group of secondary light-distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821560907.3U CN208804542U (en) | 2018-09-25 | 2018-09-25 | A kind of direct-light type LED backlight mould group of secondary light-distribution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208804542U true CN208804542U (en) | 2019-04-30 |
Family
ID=66238383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821560907.3U Expired - Fee Related CN208804542U (en) | 2018-09-25 | 2018-09-25 | A kind of direct-light type LED backlight mould group of secondary light-distribution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208804542U (en) |
-
2018
- 2018-09-25 CN CN201821560907.3U patent/CN208804542U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190430 Termination date: 20210925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |