CN203533426U - Novel LED lens and liquid crystal display backlight screen - Google Patents
Novel LED lens and liquid crystal display backlight screen Download PDFInfo
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- CN203533426U CN203533426U CN201320571906.XU CN201320571906U CN203533426U CN 203533426 U CN203533426 U CN 203533426U CN 201320571906 U CN201320571906 U CN 201320571906U CN 203533426 U CN203533426 U CN 203533426U
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- led lens
- cylindrical hole
- base station
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Abstract
The utility model discloses a novel LED lens and a liquid crystal display backlight screen. The novel LED lens comprises a base, a first boss arranged on the base, and a second boss arranged on the first boss. The side wall of the first boss and the side wall of the second boss form an emitting surface, the side wall of the first boss is of an arc face structure protruding outwards, the top surface of the second boss is a reflective surface of a conical concave structure, the bottom of the base is provided with cylindrical holes used for installing light emitting diodes (LED), the surface of the cylindrical hole forms an incident surface, light rays emitted by the LEDs irradiate from the incident surface, a part of the light rays are emitted from the emitting surface after being reflected by the reflective surface, and the other part of the light rays are emitted directly from the emitting surface. By the adoption of the structure, the aims that the projection distance is shortened by half, and the same luminance uniformity can be obtained are achieved on the premise that the distribution distance of the LEDs is the same as that of LEDs of an existing refraction type optical lens.
Description
Technical field
The utility model relates to light emitting diode (LED, Light Emitting Diode) lens technologies field, is specifically related to New LED lens and LCD backlight screen.
Background technology
LED light source is because its energy-conserving and environment-protective are widely used in fields such as illumination and LCD backlight screens.Particularly in LCD backlight screen, use in enormous quantities, created social value and commercial value widely.LED liquid crystal backlight mainly contains 2 kinds of arrangements:
1, side entering type, utilizes LED to coordinate LGP to realize the uniform brilliance of screen.
2, straight-down negative, utilizes LED to coordinate optical lens to realize uniform brilliance at screen rear direct irradiation screen.
At present, the refraction type optical lenses that use in straight-down negative arrangement more, this kind of lens are due to refractive index and the total reflection effect impact of material, limiting under the prerequisite of LED arrangement pitches, between the screen of LED and lens combination and LCD backlight screen, must there is higher projection distance, just can on screen, obtain uniform brilliance.Obviously, the increase of projection distance can increase the cost of LCD backlight screen, and does not meet user to the gossamery requirement of liquid crystal display device.
Utility model content
The purpose of this utility model is to disclose New LED lens and LCD backlight screen, solve existing refraction type optical lens and need to there is the problem that higher projection distance could obtain uniform brilliance on screen, further solved the problem that cost is high, thickness is large of LCD backlight screen.
For achieving the above object, the utility model adopts following technical scheme:
New LED lens, comprises base station, is located at the first boss on base station and is located at the second boss on this first boss; The sidewall of the sidewall of the first boss and the second boss forms exit facet, and the sidewall of the first boss is the globoidal structure of evagination; The end face of the second boss is reflecting surface, and this reflecting surface is cone sunk structure; The bottom of base station is provided with the cylindrical hole for diode installed LED, and the surface of this cylindrical hole forms the plane of incidence; The light that LED sends is injected from the plane of incidence, and a part of light penetrates from exit facet after reflecting surface reflection, and another part light directly penetrates from exit facet.
Further, the sidewall of described the second boss is cylindrical structure or conical structure.
Further, the surface of described cylindrical hole consists of cylindrical hole side and cylindrical hole bottom surface, the cylindrical structure in cylindrical hole side, and cylindrical hole bottom surface is cone sunk structure.
Further, the cross section contour of described cone sunk structure is outwards outstanding camber line structure.
Further, described base station, described the first boss and described the second boss are overall structure, and the transparent resin material by refractive index between 1.3～1.6 is made.
Further, described base station is provided with cannelure, and this cannelure is positioned at outside and and the cylindrical hole coaxial cooperation of cylindrical hole.
Further, described cannelure surface is provided with the irregular particle shape texture with volume scattering characteristic.
Further, described base station is circular base station or square base station.
The invention also discloses LCD backlight screen, comprise New LED lens described in above-mentioned any one.
Further, also comprise reflectance coating and diffuser plate, described in several, New LED lens is located on reflectance coating, and rectangular array distribution, and line-spacing is A, and array pitch is B; Diffuser plate is positioned at reflectance coating and New LED lens top, and the spacing of diffuser plate and reflectance coating is C, apart from high ratio
s is more than or equal to 4.5.
Compared with prior art, the beneficial effects of the utility model:
The utility model adopts above structure, a kind of brand-new refraction type optics LED lens are provided, utilize the first principles computations secondary computer emulation technology of optics, realized and having compared under the prerequisite that LED arrangement pitches is identical with existing refraction type optical lens, projection distance has been reduced to the object that half (realizing large apart from high ratio) still can obtain the same briliancy uniformity.
The utility model is made exit facet after curved surface to a certain degree, and it is larger that the light that LED sends entered the light scope of launching after lens, and while using on LCD backlight screen, the backlight effect of LCD backlight screen is more even.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic perspective view one of New LED lens embodiment mono-in the utility model;
Fig. 2 is embodiment illustrated in fig. 1 one schematic perspective view two;
Fig. 3 is a generalized section embodiment illustrated in fig. 1;
Fig. 4 is embodiment illustrated in fig. 1 one light refraction path schematic diagram;
Fig. 5 is the schematic diagram of the another kind of embodiment of New LED lens in the utility model, and now base station is circular base station;
Fig. 6 is the structural representation of LCD backlight screen embodiment bis-in the utility model;
Fig. 7 is the scheme of installation of reflectance coating and New LED lens in Fig. 5;
In figure, 10-New LED lens; 1-base station; The bottom of 11-base station; 12-cylindrical hole; 121-cylindrical hole side; 122-cylindrical hole bottom surface; 13-cannelure; 131-irregular particle shape texture; 2-the first boss; The sidewall of 21-the first boss; 3-the second boss; The sidewall of 31-the second boss; 4-exit facet; 5-reflecting surface; The 6-plane of incidence; 20-LED; 30-LCD backlight screen; 31-reflectance coating; 32-diffuser plate; 33-bright enhancement film; 34-liquid crystal panel.
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.
Embodiment mono-
Embodiment mono-New LED lens 10, comprises base station 1, is located at the first boss 2 on base station 1 and is located at the second boss 3 on this first boss 2 as shown in Figures 1 to 4; The sidewall 21 that the sidewall 21 of the first boss and the sidewall of the second boss 31 form exit facet 4, the first boss is the globoidal structure of evagination; The end face of the second boss is reflecting surface 5, and this reflecting surface 5 is cone sunk structure; The bottom 11 of base station is provided with the cylindrical hole 12 for diode installed LED20, and the surface of this cylindrical hole 12 forms the plane of incidence 6.The light that LED sends is injected from the plane of incidence 6, and a part of light penetrates from exit facet 4 after reflecting surface 5 reflections, and another part light directly penetrates from exit facet 4 and reflecting surface 5.The present embodiment adopts above structure, a kind of brand-new refraction type optics LED lens are provided, utilize the first principles computations secondary computer emulation technology of optics, realized and having compared under the prerequisite that LED arrangement pitches is identical with existing refraction type optical lens, projection distance has been reduced to the object that half (realizing large apart from high ratio) still can obtain the same briliancy uniformity.
In embodiment mono-, the sidewall 31 of the second boss is conical structure, also can be cylindrical structure.
The surface of cylindrical hole 12 consists of cylindrical hole side 121 and cylindrical hole bottom surface 122, and cylindrical hole side 121 and cylindrical hole bottom surface 122 have formed the plane of incidence 6.The cylindrical structure in cylindrical hole side 121, cylindrical hole bottom surface 122 is cone sunk structure.In embodiment mono-, the cross section contour of cone sunk structure is outwards outstanding camber line structure.
Other structure of embodiment mono-New LED lens is referring to prior art.
Embodiment bis-
Embodiment bis-LCD backlight screens 30, comprise New LED lens 10 shown in embodiment mono-as shown in Figure 6 and Figure 7.Embodiment bis-also comprises reflectance coating 31, diffuser plate 32, bright enhancement film 33 and liquid crystal panel 34.Several New LED lens 10 are located on reflectance coating 31, and rectangular array distribution, and line-spacing is A, and array pitch is B; Diffuser plate 32 is positioned at reflectance coating 31 and New LED lens 10 tops, and the spacing of diffuser plate 32 and reflectance coating 31 is C, apart from high ratio
s is more than or equal to 4.5.Bright enhancement film 33 in the present embodiment covers on diffuser plate 32, and liquid crystal panel 34 covers on diffuser plate 32, and the quantity of bright enhancement film 33 is three layers, but is not limited to three layers, can increase and decrease according to demand.
Other structure of embodiment bis-LCD backlight screens is referring to prior art.
The utility model is not limited to above-mentioned embodiment, if various changes of the present utility model or modification are not departed to spirit and scope of the present utility model, if within these changes and modification belong to claim of the present utility model and equivalent technologies scope, the utility model is also intended to comprise these changes and modification.
Claims (10)
1. New LED lens, is characterized in that: comprise base station, be located at the first boss on base station and be located at the second boss on this first boss; The sidewall of the sidewall of the first boss and the second boss forms exit facet, and the sidewall of the first boss is the globoidal structure of evagination; The end face of the second boss is reflecting surface, and this reflecting surface is cone sunk structure; The bottom of base station is provided with the cylindrical hole for diode installed LED, and the surface of this cylindrical hole forms the plane of incidence; The light that LED sends is injected from the plane of incidence, and a part of light penetrates from exit facet after reflecting surface reflection, and another part light directly penetrates from exit facet.
2. New LED lens as claimed in claim 1, is characterized in that: the sidewall of described the second boss is cylindrical structure or conical structure.
3. New LED lens as claimed in claim 1, is characterized in that: the surface of described cylindrical hole consists of cylindrical hole side and cylindrical hole bottom surface, the cylindrical structure in cylindrical hole side, and cylindrical hole bottom surface is cone sunk structure.
4. New LED lens as described in claim 1 or 3, is characterized in that: the cross section contour of described cone sunk structure is outwards outstanding camber line structure.
5. New LED lens as claimed in claim 1, is characterized in that: described base station, described the first boss and described the second boss are overall structure, and the transparent resin material by refractive index between 1.3～1.6 is made.
6. New LED lens as claimed in claim 1, is characterized in that: described base station is provided with cannelure, and this cannelure is positioned at outside and and the cylindrical hole coaxial cooperation of cylindrical hole.
7. New LED lens as claimed in claim 6, is characterized in that: described cannelure surface is provided with the irregular particle shape texture with volume scattering characteristic.
8. New LED lens as claimed in claim 1, is characterized in that: described base station is circular base station or square base station.
9. LCD backlight screen, is characterized in that: comprise New LED lens described in claim 1 to 8 any one.
10. LCD backlight shields as claimed in claim 9, it is characterized in that: also comprise reflectance coating and diffuser plate, described in several, New LED lens is located on reflectance coating, and rectangular array distribution, and line-spacing is A, and array pitch is B; Diffuser plate is positioned at reflectance coating and New LED lens top, and the spacing of diffuser plate and reflectance coating is C, apart from high ratio
s is more than or equal to 4.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320571906.XU CN203533426U (en) | 2013-09-13 | 2013-09-13 | Novel LED lens and liquid crystal display backlight screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320571906.XU CN203533426U (en) | 2013-09-13 | 2013-09-13 | Novel LED lens and liquid crystal display backlight screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203533426U true CN203533426U (en) | 2014-04-09 |
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ID=50419630
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320571906.XU Expired - Fee Related CN203533426U (en) | 2013-09-13 | 2013-09-13 | Novel LED lens and liquid crystal display backlight screen |
Country Status (1)
| Country | Link |
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| CN (1) | CN203533426U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471009A (en) * | 2013-09-13 | 2013-12-25 | 东莞市欧科光电科技有限公司 | Novel LED lens and liquid crystal display backlight screen |
| CN105180014A (en) * | 2015-09-29 | 2015-12-23 | 黄山市展硕半导体科技有限公司 | Backlight source structure |
| CN108351088A (en) * | 2016-08-18 | 2018-07-31 | 瑞仪光电(苏州)有限公司 | Lens arrangement and the lamps and lanterns, backlight module and display equipment for using the lens arrangement |
-
2013
- 2013-09-13 CN CN201320571906.XU patent/CN203533426U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471009A (en) * | 2013-09-13 | 2013-12-25 | 东莞市欧科光电科技有限公司 | Novel LED lens and liquid crystal display backlight screen |
| CN105180014A (en) * | 2015-09-29 | 2015-12-23 | 黄山市展硕半导体科技有限公司 | Backlight source structure |
| CN108351088A (en) * | 2016-08-18 | 2018-07-31 | 瑞仪光电(苏州)有限公司 | Lens arrangement and the lamps and lanterns, backlight module and display equipment for using the lens arrangement |
| US10488562B2 (en) | 2016-08-18 | 2019-11-26 | Radiant Opto-Electronics (Suzhou) Co., Ltd | Lens structure and lamp, backlight module, and display device using the same |
| CN108351088B (en) * | 2016-08-18 | 2020-03-24 | 瑞仪光电(苏州)有限公司 | Lens structure, lamp using lens structure, backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20180913 |