CN203784827U - Novel LED lens for backlight of liquid crystal display - Google Patents
Novel LED lens for backlight of liquid crystal display Download PDFInfo
- Publication number
- CN203784827U CN203784827U CN201320751958.5U CN201320751958U CN203784827U CN 203784827 U CN203784827 U CN 203784827U CN 201320751958 U CN201320751958 U CN 201320751958U CN 203784827 U CN203784827 U CN 203784827U
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- China
- Prior art keywords
- refraction
- base station
- liquid crystal
- crystal display
- led lens
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- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The utility model discloses a novel LED lens for backlight of a liquid crystal display. The novel LED lens comprises a base table, an inner refraction face and an outer refraction face matched with the inner refraction face. The base table comprises a base table bottom face and a base table top face, the inner refraction face is connected with the base table bottom face, the outer refraction face is connected with the base table top face, and the outer refraction face is of an outwards-protruding smooth arc face structure. Through the structure, curvature change of the outer refraction face is little, the separation phenomenon of blue light and yellow light is avoided, manufacturing is simple, the requirement for precision of a machining machine is low, machining time is short, and efficiency is high.
Description
Technical field
The utility model relates to light emitting diode (LED, LightEmittingDiode) technical field, is specifically related to novel liquid crystal display backlight LED lens.
Background technology
LED direct-light-type backlight is because it is energy-conservation, environmental protection, and reliability is high, and long service life and cost-saving many advantages, be widely used in various liquid crystal display devices.Wherein, LED collocation secondary optical lens is because it uses LED quantity few, and the briliancy uniformity is high, becomes gradually the first selection of the backlight (as LCD TV) of large scale liquid crystal display device.One of the index of mainly considering of backlight is the briliancy uniformity, and the major part of realizing briliancy balancing function is secondary optical lens.Present stage, the main secondary optical lens structure in market is a short cylinder, and lower surface has a bullet-shaped blind hole, and upper surface is the cambered surface of a middle indent both sides projection, is similar to the edge of peanut.
This kind of structural design, centre curvature changes too greatly, and because the optical index of different colours is different, the light that LED sends, when the curved surface refraction changing through curvature greatly, easily produces blue gold-tinted segregation phenomenon.Form a certain region and be shown as yellow and lay particular stress on, a certain region is shown as blueness and lays particular stress on, and causes the chromaticity coordinates value drift of back light system.
In addition: aforementioned upper surface is to have recessed arc in the middle of one it is shaped as multiple surfaces link, when making the mould of producing product, required precision to processing machine is higher, in order to process, to meet the die cavity of designing requirement also very long its process time, reach 4-5 hour the process time of a common die cavity, efficiency is lower.
Utility model content
The purpose of this utility model is to disclose novel liquid crystal display backlight LED lens, has solved the blue gold-tinted segregation phenomenon of easy generation, and processing difficulties, cost are high, the problem of complex procedures.
For achieving the above object, the utility model adopts following technical scheme:
Novel liquid crystal display backlight LED lens, comprise base station, interior plane of refraction and the outer plane of refraction coordinating with this interior plane of refraction; Base station comprises base station bottom surface and base station end face; Interior plane of refraction is connected with base station bottom surface; Outer plane of refraction is connected with base station end face, and outer plane of refraction is the level and smooth globoidal structure of evagination.
Further, the height of described outer plane of refraction distance described base station bottom surface is H1, and described interior refraction identity distance is H2 from the height of base station bottom surface, and H1 and H2 meet
Further, the high H1 of described outer plane of refraction distance described base station bottom surface and described interior refraction identity distance meet from the height H 2 of base station bottom surface
Further, the radian of described outer plane of refraction is greater than 60 ° and be less than 150 °.
Further, described interior plane of refraction indent be configured for placing the bullet-shaped blind hole structure of LED.
Further, described base station bottom surface is provided with three for being fixed on the suspension column that inside contracts on pcb board.
Further, described in, inside contract suspension column and be conical structure.
Further, the integrative-structure that these LED lens are printing opacity.
Compared with prior art, the beneficial effects of the utility model:
1, the utility model adopts the level and smooth globoidal structure of evagination as outer plane of refraction, and curvature changes little, prevents blue gold-tinted segregation phenomenon, and makes simply, and low to the required precision of processing machine, process time is short, and efficiency is high;
2, adopt higher interior plane of refraction, and the outer plane of refraction cooperation of the level and smooth globoidal structure of evagination, blue gold-tinted segregation phenomenon can further be prevented;
3, adopt 3 taper shapes to inside contract suspension column as fixing use, be better connected with pcb board.
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 LED lens embodiment for novel liquid crystal display backlight described in the utility model;
Fig. 2 is the schematic perspective view two along A direction embodiment illustrated in fig. 1;
Fig. 3 is section front elevational schematic embodiment illustrated in fig. 1;
In figure, 1-base station; 11-base station bottom surface; 12-base station end face; Plane of refraction in 2-; The outer plane of refraction of 3-; 4-inside contracts suspension column.
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 novel liquid crystal display backlight LED lens, comprise base station 1, interior plane of refraction 2 and the outer plane of refraction 3 coordinating with this interior plane of refraction 2 as shown in Figure 1 to Figure 3; Base station 1 comprises base station bottom surface 11 and base station end face 12; Interior plane of refraction 2 is connected with base station bottom surface 11; Outer plane of refraction 3 is connected with base station end face 12, and outer plane of refraction 3 is the level and smooth globoidal structure of evagination.
Outer plane of refraction 3 is H1 apart from the height of base station bottom surface 11, and interior plane of refraction 2 is H2 apart from the height of base station bottom surface 11, and H1 and H2 meet
outer plane of refraction 3 is apart from the high H1 of base station bottom surface 11, and interior plane of refraction 2, apart from the height H 2 of base station bottom surface 11, meets
the radian of outer plane of refraction 3 is greater than 60 ° and be less than 150 °.
Interior plane of refraction 2 indents are also configured for placing the bullet-shaped blind hole structure of LED.Base station bottom surface 11 is provided with three and on pcb board, inside contracts suspension column 4 for being fixed on.Inside contract suspension column 4 and be conical structure.
The present embodiment is the integrative-structure of printing opacity, can adopt the materials such as glass to make.
The present embodiment novel liquid crystal display backlight uses other structure of LED lens 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 (8)
1. novel liquid crystal display backlight LED lens, is characterized in that: comprise base station, interior plane of refraction and the outer plane of refraction coordinating with this interior plane of refraction; Base station comprises base station bottom surface and base station end face; Interior plane of refraction is connected with base station bottom surface; Outer plane of refraction is connected with base station end face, and outer plane of refraction is the level and smooth globoidal structure of evagination.
2. novel liquid crystal display backlight LED lens as claimed in claim 1, is characterized in that: the height of described outer plane of refraction distance described base station bottom surface is H1, and described interior refraction identity distance is H2 from the height of base station bottom surface, and H1 and H2 meet
3. novel liquid crystal display backlight LED lens as claimed in claim 2, is characterized in that: the high H1 of described outer plane of refraction distance described base station bottom surface and described interior refraction identity distance meet from the height H 2 of base station bottom surface
4. novel liquid crystal display backlight LED lens as described in claims 1 to 3 any one, is characterized in that: the radian of described outer plane of refraction is greater than 60 ° and be less than 150 °.
5. novel liquid crystal display backlight LED lens as claimed in claim 2, is characterized in that: described interior plane of refraction indent is also configured for placing the bullet-shaped blind hole structure of LED.
6. novel liquid crystal display backlight LED lens as claimed in claim 2, is characterized in that: described base station bottom surface is provided with three for being fixed on the suspension column that inside contracts on pcb board.
7. novel liquid crystal display backlight LED lens as claimed in claim 6, is characterized in that: described in inside contract suspension column and be conical structure.
8. novel liquid crystal display backlight LED lens as claimed in claim 1, is characterized in that: the integrative-structure that these LED lens are printing opacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751958.5U CN203784827U (en) | 2013-11-25 | 2013-11-25 | Novel LED lens for backlight of liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751958.5U CN203784827U (en) | 2013-11-25 | 2013-11-25 | Novel LED lens for backlight of liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784827U true CN203784827U (en) | 2014-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320751958.5U Expired - Fee Related CN203784827U (en) | 2013-11-25 | 2013-11-25 | Novel LED lens for backlight of liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018219211A1 (en) * | 2017-05-27 | 2018-12-06 | 苏州欧普照明有限公司 | Light distribution element, light source module and lighting device |
-
2013
- 2013-11-25 CN CN201320751958.5U patent/CN203784827U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018219211A1 (en) * | 2017-05-27 | 2018-12-06 | 苏州欧普照明有限公司 | Light distribution element, light source module and lighting device |
| US10928034B2 (en) | 2017-05-27 | 2021-02-23 | Opple Lighting Co., Ltd. | Light distribution element, light source module and lighting 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: 20140820 Termination date: 20181125 |