CN203797409U - Night-vision-compatible bottom-light-type LED backlight source - Google Patents
Night-vision-compatible bottom-light-type LED backlight source Download PDFInfo
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- CN203797409U CN203797409U CN201420117897.1U CN201420117897U CN203797409U CN 203797409 U CN203797409 U CN 203797409U CN 201420117897 U CN201420117897 U CN 201420117897U CN 203797409 U CN203797409 U CN 203797409U
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- led
- backlight
- night
- light
- orange
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- 239000003086 colorant Substances 0.000 claims abstract description 15
- 230000004297 night vision Effects 0.000 abstract description 10
- 238000000889 atomisation Methods 0.000 abstract 4
- 239000012788 optical film Substances 0.000 abstract 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
A night-vision-compatible bottom-light-type LED backlight source comprises a backlight board (11), an atomization board (12) and an optical film assembly (13). The atomization board (12) is arranged on the upper side (11) of the backlight board, the optical film assembly (13) is attached to the atomization board (12), a plurality of LED surface-mounted devices (111) in the four colors of red, green, blue and orange are welded to the backlight board (11), and the LED surface-mounted devices in each color are independently controlled by a driving circuit. The backlight source has the daytime working mode and the night-vision working mode. In the daytime working mode, the LED surface-mounted devices in the four colors of red, green, blue and orange are turned on; in the night-vision working mode, the LED surface-mounted devices in the three colors of green, blue and orange are turned on. Different colors of light is mixed after passing through air and the atomization board, and backlight with a specific wavelength can be formed after the light is transmitted through the optical film assembly. Light filters are not needed for the backlight source, and the night-vision-compatible bottom-light-type LED backlight source is low in cost, easy to manufacture and capable of meeting the requirement of compatibility of visibility under strong light and night vision.
Description
Technical field
The utility model relates to a kind of and light formula LED-backlit source, end night viewing compatible, belongs to demonstration field.
Background technology
Except having, power consumption is little, brightness is high, reliability is high for airborne LED liquid crystal display, under high light, outside the feature such as visual, in most cases, also needs and Night Vision Imaging System (NVIS) compatibility.
With reference to " the interior of aircraft illumination of GJB1394-92 and Night Vision Imaging System compatibility ", the colour electrooptical display unit that meets night viewing compatible is simply described below the requirement of spectrum, for example dialogue field signal, chromaticity coordinates is in CIE1976UCS collection of illustrative plates meta U '=0.190, V '=0.490, allowable error r=0.04, when brightness is 1.713cd/m
2time, A, category-B NVIS equipment are respectively NR to the requirement of spoke brightness
a≤ 2.3 × 10
-9w/Srcm
2, NR
b≤ 2.2 × 10
-9w/Srcm
2.
Design the LED-backlit source of airborne demonstration, make it meet requirement visual under night viewing compatible and high light simultaneously, become the hot issue of current concern.
A kind of backlight of the prior art, the bimodulus LED-backlit source of employing side-light type.Wherein one group of LED lamp bar sends highlighted backlight for showing under pattern daytime.Another group LED lamp bar sends backlight for showing under pattern night with night viewing compatible after suitable optical filter.Its shortcoming is to use two groups of LED lamps, and uses optical filter, and cost is high, and colourity regulates dumb.
Therefore, be necessary to design a kind of without using optical filter and the light formula LED-backlit source, the end with night viewing compatible.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of light formula LED-backlit source, the end of night viewing compatible, use same group of LED light source, in the situation that not using optical filter, realize under pattern in daytime and night vision pattern compatibility, realize cost low, make simply colourity flexible adjustment.
Technical solution of the present utility model is as follows:
A kind of light formula LED-backlit source, the end of night viewing compatible, comprise backlight 11, pulverizer plate 12 and blooming group 13, pulverizer plate 12 is arranged on backlight 11 upsides, on pulverizer plate 12, be attached with blooming group 13, the LED paster 111 that is welded with multiple red, green, blues, four kinds of colors of orange in described backlight 11, the LED paster of every kind of color is independently controlled by Drive and Control Circuit.
Described LED paster 111 is determinant arranges, and each row of the LED paster of odd column are arranged successively according to red, green, orange, blue order, and each row of the LED paster of even column are arranged successively according to orange, blue, red, green order.
Described LED paster is 4 row 7 row and arranges.
Described Drive and Control Circuit comprises host computer, MCU, and constant pressure source, the LED paster of every kind of color is connected in series, and the positive pole after series connection is connected with positive supply, and negative pole is connected with an output interface of MCU by a constant pressure source respectively, and MCU is connected with host computer.
Backlight of the present utility model comprises daytime, night two kinds of mode of operations.Daytime, night pattern switching by drive control circuit.Drive and Control Circuit comprises host computer, microcontroller (MCU) and constant pressure source.By host computer transmit button and brightness regulated signal, to MCU, MCU produces corresponding pwm pulse accordingly, controls the lighting, extinguish and brightness of LED paster of every kind of color, thereby realizes switching and the versicolor LED paster brightness regulation of daytime, night pattern.Under pattern, the LED paster of red, green, blue, four kinds of colors of orange is lighted in the daytime, and under night vision pattern, LED pasters green, blue, three kinds of colors of orange are lighted.
Because LED lamp backlight drive control circuit is existing mature technology, therefore be not described in detail in this patent.
Beneficial effect:
The utility model is lighted the LED paster of red, green, blue, four kinds of colors of orange in the daytime under pattern, under night vision pattern, put the LED paster of BG, indigo plant, three kinds of colors of orange, the light of different colours mixes through air and pulverizer plate, sees through blooming group and can form the backlight of specific band and intensity.This backlight has not only met visual requirement under airborne demonstration high light, has realized in the situation that not using optical filter simultaneously, and the function with Night Vision Imaging System compatibility, has reduced cost, colourity flexible adjustment.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is LED paster Drive and Control Circuit schematic diagram in the utility model;
Label declaration: 11-backlight, 12-pulverizer plate, 13-blooming group, 111-LED paster.
Detailed description of the invention
Below with reference to the drawings and specific embodiments, the utility model is described in further details.
As shown in Figure 1, a kind of light formula LED-backlit source, the end of and night viewing compatible, includes backlight 11, pulverizer plate 12 and blooming group 13.Pulverizer plate 12 is positioned at backlight 11 upsides, and pulverizer plate upside adheres to blooming group 13.In backlight 11, welding red, green, blue, four kinds of color LED pasters 111 of orange.The LED paster brightness of every kind of color independently regulates by Drive and Control Circuit.
Fig. 2 is the utility model Drive and Control Circuit schematic diagram.Control circuit comprises host computer, microcontroller (MCU) and voltage-stabiliser tube.Backlight of the present utility model comprises daytime, night two kinds of mode of operations.The switching of pattern is by drive circuit control round the clock.Particularly, by host computer transmit button and brightness regulated signal, to MCU, MCU produces pwm pulse accordingly, controls the lighting, extinguish and brightness of LED paster of every kind of color, thereby realizes switching and the versicolor LED paster brightness regulation of pattern round the clock.Under pattern, the LED paster of red, green, blue, four kinds of colors of orange is lighted in the daytime, and under night vision pattern, LED pasters green, blue, three kinds of colors of orange are lighted.
Because the light of different colours mixes through air and pulverizer plate, after seeing through blooming group, can form the backlight of specific wavelength, therefore without using optical filter, reduce cost, this backlight is combined with Drive and Control Circuit, the luminosity of adjustable LED modules with different colors paster, obtains the backlight of certain strength and colourity, thereby makes this backlight can meet visual under high light and two requirements of night viewing compatible simultaneously.
Claims (4)
1. the light formula LED-backlit source, the end of a night viewing compatible, include backlight (11), pulverizer plate (12) and blooming group (13), pulverizer plate (12) is arranged on backlight (11) upside, on pulverizer plate (12), be attached with blooming group (13), it is characterized in that, the LED paster (111) that is welded with multiple red, green, blues, four kinds of colors of orange in described backlight (11), the LED paster of every kind of color is independently controlled by Drive and Control Circuit.
2. the light formula LED-backlit source, the end of night viewing compatible according to claim 1, it is characterized in that, described LED paster (111) is determinant and arranges, each row of odd column LED paster (111) are arranged successively according to red, green, orange, blue order, and each row of even column LED paster (111) are arranged successively according to orange, blue, red, green order.
3. the light formula LED-backlit source, the end of night viewing compatible according to claim 1 and 2, is characterized in that, described LED paster (111) is 4 row 7 row and arranges.
4. the light formula LED-backlit source, the end of night viewing compatible according to claim 1 and 2, it is characterized in that, described Drive and Control Circuit comprises host computer, MCU and constant pressure source, the LED paster of every kind of color is connected in series, positive pole after series connection is connected with positive supply, negative pole is connected with an output interface of MCU by a constant pressure source respectively, and MCU is connected with host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420117897.1U CN203797409U (en) | 2014-03-14 | 2014-03-14 | Night-vision-compatible bottom-light-type LED backlight source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420117897.1U CN203797409U (en) | 2014-03-14 | 2014-03-14 | Night-vision-compatible bottom-light-type LED backlight source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797409U true CN203797409U (en) | 2014-08-27 |
Family
ID=51379618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420117897.1U Expired - Lifetime CN203797409U (en) | 2014-03-14 | 2014-03-14 | Night-vision-compatible bottom-light-type LED backlight source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797409U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106604461A (en) * | 2016-12-13 | 2017-04-26 | 中航华东光电有限公司 | Color LED lamp current control circuit in two modes |
| CN107045854A (en) * | 2017-05-04 | 2017-08-15 | 中航华东光电有限公司 | The OLED display method compatible with night vision imaging device |
| CN110133911A (en) * | 2019-05-15 | 2019-08-16 | 京东方科技集团股份有限公司 | Backlight module and airborne display device |
-
2014
- 2014-03-14 CN CN201420117897.1U patent/CN203797409U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106604461A (en) * | 2016-12-13 | 2017-04-26 | 中航华东光电有限公司 | Color LED lamp current control circuit in two modes |
| CN106604461B (en) * | 2016-12-13 | 2018-09-21 | 中航华东光电有限公司 | Color LED lamp current control circuit under both of which |
| CN107045854A (en) * | 2017-05-04 | 2017-08-15 | 中航华东光电有限公司 | The OLED display method compatible with night vision imaging device |
| CN110133911A (en) * | 2019-05-15 | 2019-08-16 | 京东方科技集团股份有限公司 | Backlight module and airborne display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190808 Address after: 410205 Room 1001, Building 10, Changsha Zhongdian Software Park, 39 Jianshan Road, Changsha High-tech Development Zone, Changsha City, Hunan Province Co-patentee after: CHANGSHA HCC HIDEN TECHNOLOGY Co.,Ltd. Patentee after: Hunan Great Wall Science and Technology Information Co.,Ltd. Address before: 410100 No. three, No. 5 East, Changsha Economic Development Zone, Hunan, China Co-patentee before: CHANGSHA HCC HIDEN TECHNOLOGY Co.,Ltd. Patentee before: GREATWALL INFORMATION INDUSTRY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |
|
| CX01 | Expiry of patent term |