CN203703817U - Mechanism for improving luminous efficiency of direct-light-type backlight system - Google Patents
Mechanism for improving luminous efficiency of direct-light-type backlight system Download PDFInfo
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- CN203703817U CN203703817U CN201320714348.8U CN201320714348U CN203703817U CN 203703817 U CN203703817 U CN 203703817U CN 201320714348 U CN201320714348 U CN 201320714348U CN 203703817 U CN203703817 U CN 203703817U
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Abstract
The utility model discloses a mechanism for improving the luminous efficiency of a direct-light-type backlight system. The mechanism comprises a bottom-surface lens, wherein a luminous body is arranged on the bottom-surface lens; a lens is arranged on the luminous body in a surrounding way; the light incoming surface of the lens is conical, the light emitting surface of the lens is hemispherical, and the light incoming surface and the light emitting surface of the lens are smooth surfaces; the bottom-surface lens is saw-toothed. According to the utility model, as the lens is added on the traditional luminous body, the backlight system adopting the structure is more uniform in lightening, excellent in optical performance, and high in luminous efficiency, can greatly reduce the number of LED lamps, and is extremely advantageous in cost competitiveness; furthermore, the energy efficiency rate and the cost of the television product can be directly influenced.
Description
Technical field
The utility model relates to luminous field, particularly relates to a kind of mechanism of improving direct type backlighting system luminous efficiency.
Background technology
Direct type backlighting system, because it possesses good optical property, has competitiveness cost advantage, is widely used in LCD TV product.Direct type backlighting system is mainly made up of reflector plate, backlight, diffuser plate and diaphragm etc., and backlight is the core in back light system.The luminous efficiency of backlight, by directly affecting efficiency grade, cost height of LCD TV product etc., extremely important.
Traditional backlight source is to utilize light emitting LED lamp directly luminous, and because its light efficiency is lower, the LED lamp quantity in separate unit LCD TV product is very many, and cost is higher.
Utility model content
The purpose of this utility model is to solve above-mentioned existing issue, increases special translucent construction on the basis of existing LED lamp, effectively improving luminous efficiency.
The utility model adopts following technical scheme: a kind of mechanism of improving direct type backlighting system luminous efficiency, described mechanism comprises bottom surface lens, on the lens of described bottom surface, is provided with illuminator, is centered around lens are set on illuminator.
In technique scheme, the incidence surface of described lens is cone shape, and the exiting surface of lens is semi-spherical shape.
In technique scheme, incidence surface and the exiting surface of described lens are shiny surface.
In technique scheme, described bottom surface lens are zigzag.
The beneficial effects of the utility model: by increase lens on traditional illuminator, the back light system of this patent structure, not only luminous more even, optical property is outstanding, and luminous efficiency is very high, can significantly reduce the quantity of LED lamp, cost competitiveness very advantageous, further can directly have influence on efficiency grade, the cost height of tv product.
Accompanying drawing explanation
The utility model will illustrate by embodiment and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is structural representation of the present utility model;
Wherein 1 is illuminator, the 2nd, and bottom surface lens, the 3rd, lens, the 31st, incidence surface, the 32nd, exiting surface.
The specific embodiment
As shown in Figure 1, in the utility model, on ground lens 2, be provided with illuminator 1, be provided with lens 3 around illuminator 1, the material of lens 3 is transparent PMMA, the incidence surface 31 of lens 3 is cone shape, the exiting surface 32 of lens 3 is semi-spherical shape, and incidence surface 31 and exiting surface 32 are all treated to shiny surface, light can be exhaled equably like this.
In order to guarantee that the refraction of light in communication process and transmitting cause the loss of light, the surface of bottom surface lens 2 adopts zigzag, when at light at the exiting surface 32 of lens 3 during because of the reflection of angle problem or refraction, light propagates on jagged bottom surface lens 2, and light will be again transmitted on exiting surface 32 and be gone out by the angle transmission before being different from.
Jagged bottom surface lens 2 have effectively reduced light because angle problem causes transmiting the technical problem of exiting surface 32, have promoted luminous efficiency, and not only luminous more even, optical property is outstanding.
Disclosed all features in this description, except mutually exclusive feature, all can combine by any way.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. improve a direct type backlighting system luminous efficiency mechanism, it is characterized by described mechanism and comprise bottom surface lens, on the lens of described bottom surface, be provided with illuminator, be centered around lens are set on illuminator; The incidence surface of described lens is cone shape, and the exiting surface of lens is semi-spherical shape.
2. a kind of direct type backlighting system luminous efficiency mechanism of improving according to claim 1, the incidence surface and the exiting surface that it is characterized by described lens are shiny surface.
3. a kind of direct type backlighting system luminous efficiency mechanism of improving according to claim 1, it is characterized by described bottom surface lens is zigzag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320714348.8U CN203703817U (en) | 2013-11-14 | 2013-11-14 | Mechanism for improving luminous efficiency of direct-light-type backlight system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320714348.8U CN203703817U (en) | 2013-11-14 | 2013-11-14 | Mechanism for improving luminous efficiency of direct-light-type backlight system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703817U true CN203703817U (en) | 2014-07-09 |
Family
ID=51054255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320714348.8U Expired - Fee Related CN203703817U (en) | 2013-11-14 | 2013-11-14 | Mechanism for improving luminous efficiency of direct-light-type backlight system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806976A (en) * | 2015-02-14 | 2015-07-29 | 成都恒坤光电科技有限公司 | Novel uniform light direct type LED (light-emitting diode) back lighting light distribution lens |
-
2013
- 2013-11-14 CN CN201320714348.8U patent/CN203703817U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806976A (en) * | 2015-02-14 | 2015-07-29 | 成都恒坤光电科技有限公司 | Novel uniform light direct type LED (light-emitting diode) back lighting light distribution lens |
| CN104806976B (en) * | 2015-02-14 | 2019-02-19 | 成都恒坤光电科技有限公司 | Even smooth direct-light type LED backlight illumination light-distribution lens, system and a kind of TV |
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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: 20140709 Termination date: 20201114 |