CN104456246A - Backlight source and backlight source system - Google Patents
Backlight source and backlight source system Download PDFInfo
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- CN104456246A CN104456246A CN201410674316.9A CN201410674316A CN104456246A CN 104456246 A CN104456246 A CN 104456246A CN 201410674316 A CN201410674316 A CN 201410674316A CN 104456246 A CN104456246 A CN 104456246A
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- lamp
- white
- color
- backlight
- color lamp
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S10/00—Lighting devices or systems producing a varying lighting effect
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a backlight source and a backlight source system. The backlight source comprises a plurality of white lamps and a plurality of colored lamps. The white lamps are connected in series at second intervals in the second direction to form white lamp series sets. The white lamp series sets are connected in parallel at first intervals in the first direction. The colored lamps are connected in series at twofold second intervals in the first direction to form colored lamp series sets, and the colored lamp series sets are connected in parallel at twofold second intervals in the second direction. The first direction is perpendicular to the second direction, and the distances between any colored lamp and the adjacent four white lamps are equal. The backlight source meets the requirement for night vision in a night working mode, and meets the high-brightness requirement in a daytime working mode.
Description
Technical field
The present invention relates to display field, particularly, relate to a kind of backlight and back light source system.
Background technology
In modern military field, night viewing compatible technology has consequence, and application is about in the various night vision weaponry such as sea, land and sky, space flight and night vision optimal in structure.On the equipment with Night Vision Imaging System, each display system or luminary device must meet night viewing compatible requirement, ensure Glassless, non-interference.
Meeting the backlight of the LCD display of night viewing compatible or back light source system can not only at MODE of operation in full daytime, also can not send light and energy that interference uses night observation device simultaneously under night or the faint condition of light, ensure that display device normally uses and plays night vision function.When working night, the display instrument of general backlight or back light source system or equipment, to the maximum interference of Night Vision Imaging System mainly wavelength near infrared band light, NVIS on severe jamming observer night vision instrument.So, must the light of near-infrared wavelength that sends of filtering backlight or back light source system, but the light of filtering backlight or back light source system, then the gamut range of backlight or back light source system can be made to diminish, very large difficulty is caused to the Visual Observations Observations of observer.Traditional design increases night vision sheet or meets the light path devices of night vision effect, to meet night viewing compatible requirement in LCD display light path devices.But it is higher that this design exists mounting process, have a strong impact on colour gamut and the reliability of LCD display.
Summary of the invention
The object of the invention is to overcome the requirement that mode of operation under military field LCD display different condition meets national military standard, there is provided a kind of backlight and back light source system, this backlight meets night viewing compatible requirement under night mode of operation and highlighted requirement under meeting the pattern of working by day.
To achieve these goals, the invention provides a kind of backlight, described backlight comprises: multiple white lamp and multiple color lamp, wherein, multiple described white lamp is in series with the second spacing distance in a second direction and is connected to form white lamp series connection group, and multiple described white lamp series connection group to be in parallel connection with the first spacing distance in a first direction;
Multiple color lamp is in series with the first spacing distance of twice in a first direction and is connected to form Color lamp string joint group, and multiple described Color lamp string joint group to be in parallel connection with the second spacing distance of twice in a second direction; Described first direction and described second direction perpendicular, and color lamp described in any one is equal to the distance of adjacent four described white lamps.
Preferably, described white lamp is the white lamp of LED, and described color lamp is LED color lamp.
Preferably, described color lamp comprises: orange lamp, green light and blue lamp, and described orange lamp, green light and blue lamp to be in series connection with the first spacing distance of twice in a first direction successively.
Preferably, the color of two adjacent on first direction or second direction described color lamps is different.
Preferably, the quantity of the white lamp in described white lamp series connection group is 4, and the quantity of described white lamp series connection group is 8.
Preferably, the quantity of the color lamp in described Color lamp string joint group is 4, and the quantity of described Color lamp string joint group is 4.
Preferably, the model of described white lamp is NSSW064AT.
Preferably, the model of described color lamp is WE-SL633NBDGUO4-B1.
The invention provides a kind of back light source system, this back light source system comprises: according to above-mentioned backlight and diffuser, and described diffuser is covered on the outer surface of multiple described white lamp or multiple described color lamp.
The present invention also provides a kind of display, and this display uses above-mentioned back light source system.
By above-mentioned embodiment, backlight of the present invention significantly reduces the design difficulty of airborne indicator night viewing compatible and the complexity of assembly technology, improve the reliability of airborne indicator, service life and colour gamut, and there is simple, easy to connect, the easy assembling of circuit structure, feature that efficiency is high.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the circuit connection diagram of the detailed description of the invention that backlight of the present invention is described; And
Fig. 2 is the circuit connection diagram of the detailed description of the invention that multiple white lamp of the present invention is described.
Description of reference numerals
1 white lamp 2 color lamp.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, the light emitting diode label of ground floor as shown in Figure 1 is D1-D8; Second layer label is C1-C4; Third layer label is D9-D16; 4th layer of label is C5-C8; Layer 5 label is D17-D24; Layer 6 label is C9-C12; Layer 7 label is D25-D32; 8th layer of label is C13-C16.X-axis direction as described below is first direction, and y-axis direction is second direction.
The invention provides a kind of backlight, described backlight comprises: multiple white lamp 1 and multiple color lamp 2, wherein, multiple described white lamp 1 is in series with the second spacing distance in a second direction and is connected to form white lamp 1 series connection group, and multiple described white lamp 1 series connection group to be in parallel connection with the first spacing distance in a first direction; Multiple color lamp 2 is in series with the first spacing distance of twice in a first direction and is connected to form color lamp 2 series connection group, and multiple described color lamp 2 series connection group to be in parallel connection with the second spacing distance of twice in a second direction; Described first direction and described second direction perpendicular, and color lamp 2 described in any one is equal to the distance of four adjacent described white lamps 1.
By above-mentioned embodiment, backlight of the present invention significantly reduces the design difficulty of airborne indicator night viewing compatible and the complexity of assembly technology, improve the reliability of airborne indicator, service life and colour gamut, and there is simple, easy to connect, the easy assembling of circuit structure, feature that efficiency is high.
Be further detailed below in conjunction with accompanying drawing 1 and accompanying drawing 2 couples of the present invention.
In a kind of detailed description of the invention of the present invention, described white lamp 1 is the white lamp 1 of LED, and described color lamp 2 is LED color lamp 2.
In this kind of embodiment, described color lamp 2 comprises: orange lamp, green light and blue lamp, and described orange lamp, green light and blue lamp to be in series connection with the first spacing distance of twice in a first direction successively.
In this kind of embodiment, the color of two adjacent on first direction or second direction described color lamps 2 is different, wherein, X is the distance between adjacent 2 LEDs white lamp 1 abscissa, Y is the distance between adjacent 2 LEDs white lamp 1 ordinate (namely as on the y direction in Fig. 1), x be LED color lamp 2 connect with the white lamp 1 of LED group place straight line in the direction of the x axis between distance, y be LED color lamp 2 connect with the white lamp 1 of adjacent LED group place straight line in the y-axis direction between distance.According to the requirement of patent, the white lamp 1 of LED, LED color lamp 2, on x-axis direction, y-axis direction, are equidistant arrangement respectively, and meet x=X/2, y=Y/2.The arrangement of every a line, each row has similitude, as shown in Figure 1.By some requirement above-mentioned, LED array can meet the requirement of airborne indicator night viewing compatible.
Adopt series-parallel connection mode, i.e. parallel way after first series connection, and constant-current driving LED lamp string, have the advantages that reliability is high, circuit structure is simple, easy to connect, efficiency is high, be particularly suitable for the connection of the LED of most amount.
In this kind of embodiment, the quantity of the white lamp 1 in described white lamp 1 series connection group is 4, and the quantity of described white lamp 1 series connection group is 8; The quantity of the color lamp 2 in described color lamp 2 series connection group is 4, and the quantity of described color lamp 2 series connection group is 4.As shown in Figure 1, such connected mode is simple, just can meet needs of the present invention for its concrete connection layout.
LED series connection determines the voltage of the LED string required for driving, and LED parallel connection determines the electric current of the LED required for driving, and the product of the two is the general power of LED array.As shown in Figure 1.It is one group that the white lamp 1 of LED and LED color lamp 2 are all gone here and there with 4, forms LED array.Wherein, the white lamp 14 of LED goes here and there 8 also, and amount to 32, label is divided into D1 ~ D32; Color lamp 24 goes here and there 4 also, and amount to 16, label is respectively C1 ~ C16.The driving voltage of the white lamp 1 of every LEDs is 3V, electric current 20mA, then required driving voltage gone here and there by the white lamp of LED 1 is U
w=4 × 3V=12V, total white lamp 1 drive current is I
w=8 × 20mA=160mA.The driving voltage of every LEDs color lamp 2 is 3V, electric current 20mA, then required driving voltage gone here and there by LED color lamp 2 is U
c=4 × 3V=12V, total color lamp 2 drive current is I
c=4 × 20mA=80mA.According to the connection in series-parallel relation of LED array, then the total voltage of whole LED array is U=12V, and total current is I=160mA × 80mA=240mA.
In this kind of embodiment, the model of described white lamp 1 is NSSW064AT, and this is a kind of model of LED white-light emitting diode, and its working stability, illumination effect is good.
In this kind of embodiment, the model of described color lamp 2 is WE-SL633NBDGUO4-B1, is the model that a kind of LED sends out glory diode, its working stability, and illumination effect is good, and low in energy consumption, is suitable for integrated.
In a kind of back light source system of the present invention, this back light source system comprises: according to above-mentioned backlight and diffuser, described diffuser is covered on the outer surface of multiple described white lamps 1 or multiple described color lamp 2, by such mode to increase radiation of light source area, improve the light source utilization rate of backlight, the effect of diffuser is the lamp diffusion angle revising LED, and formation uniformity is good, the secondary souce of chroma stability.
In a kind of display of the present invention, this display uses above-mentioned back light source system, this kind of display be by day under mode of operation, the array of the white lamp of LED 1 and orange lamp, blue lamp array operation, to meet the highlighted requirement of airborne LCD display under the pattern that works by day; Under night mode of operation, LED white lamp 1 array is closed, orange lamp, green light, blue lamp array operation, by orange lamp, green light, blue lamp array colour mixture in proportion, to meet the requirement of airborne LCD display night viewing compatible under night mode of operation.Its connection configuration figure as shown in Figure 1.
As aim of the present invention, display of the present invention comprise the pattern of working by day and night mode of operation.By day under operational mode state, LED white lamp 1 array, LED orange lamp and the blue lamp array operation of LED, with the requirement of airborne LCD display high brightness under the satisfied pattern that works by day; Under night mode of operation, LED white lamp 1 array is closed, orange lamp, green light, blue lamp array operation, by orange lamp, green light, blue lamp array colour mixture in proportion, to meet the requirement of airborne LCD display night viewing compatible under night mode of operation, its spoke brightness value is made to be less than 2.2 × 10-9W/cm2sr (white).
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible combination.
In addition, also can be combined between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (9)
1. a backlight, it is characterized in that, described backlight comprises: multiple white lamp and multiple color lamp, wherein, multiple described white lamp is in series with the second spacing distance in a second direction and is connected to form white lamp series connection group, and multiple described white lamp series connection group to be in parallel connection with the first spacing distance in a first direction;
Multiple color lamp is in series with the first spacing distance of twice in a first direction and is connected to form Color lamp string joint group, and multiple described Color lamp string joint group to be in parallel connection with the second spacing distance of twice in a second direction;
Described first direction and described second direction perpendicular, and color lamp described in any one is equal to the distance of adjacent four described white lamps.
2. backlight according to claim 1, is characterized in that, described white lamp is the white lamp of LED, and described color lamp is LED color lamp.
3. backlight according to claim 1, is characterized in that, described color lamp comprises: orange lamp, green light and blue lamp, and described orange lamp, green light and blue lamp to be in series connection with the first spacing distance of twice in a first direction successively.
4. backlight according to claim 3, is characterized in that, the color of two described color lamps adjacent on first direction or second direction is different.
5. backlight according to claim 1, is characterized in that, the quantity of the white lamp in described white lamp series connection group is 4, and the quantity of described white lamp series connection group is 8.
6. backlight according to claim 1, is characterized in that, the quantity of the color lamp in described Color lamp string joint group is 4, and the quantity of described Color lamp string joint group is 4.
7. backlight according to claim 1, is characterized in that, the model of described white lamp is NSSW064AT.
8. backlight according to claim 1, is characterized in that, the model of described color lamp is WE-SL633NBDGUO4-B1.
9. a back light source system, is characterized in that, this back light source system comprises: according to the backlight in claim 1-8 described in any one and diffuser, and described diffuser is covered on the outer surface of multiple described white lamp or multiple described color lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410674316.9A CN104456246A (en) | 2014-11-21 | 2014-11-21 | Backlight source and backlight source system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410674316.9A CN104456246A (en) | 2014-11-21 | 2014-11-21 | Backlight source and backlight source system |
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| Publication Number | Publication Date |
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| CN104456246A true CN104456246A (en) | 2015-03-25 |
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| CN201410674316.9A Pending CN104456246A (en) | 2014-11-21 | 2014-11-21 | Backlight source and backlight source system |
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Citations (7)
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| CN1987607A (en) * | 2005-12-23 | 2007-06-27 | 群康科技(深圳)有限公司 | Liquid crystal display device |
| US20070171623A1 (en) * | 2006-01-24 | 2007-07-26 | Astronautics Corporation Of America | Night vision compatible display backlight |
| CN101554090A (en) * | 2006-11-29 | 2009-10-07 | 夏普株式会社 | Backlight device, and display employing the same |
| US8628206B1 (en) * | 2011-09-16 | 2014-01-14 | Rockwell Collins, Inc. | Low cost backlight for NVIS compatible operation |
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| US8876326B1 (en) * | 2011-09-08 | 2014-11-04 | Rockwell Collins, Inc. | Multi-mode LED edge-light for NVIS compatible operation |
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2014
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987607A (en) * | 2005-12-23 | 2007-06-27 | 群康科技(深圳)有限公司 | Liquid crystal display device |
| US20070171623A1 (en) * | 2006-01-24 | 2007-07-26 | Astronautics Corporation Of America | Night vision compatible display backlight |
| CN101554090A (en) * | 2006-11-29 | 2009-10-07 | 夏普株式会社 | Backlight device, and display employing the same |
| US8876326B1 (en) * | 2011-09-08 | 2014-11-04 | Rockwell Collins, Inc. | Multi-mode LED edge-light for NVIS compatible operation |
| US8628206B1 (en) * | 2011-09-16 | 2014-01-14 | Rockwell Collins, Inc. | Low cost backlight for NVIS compatible operation |
| CN203641990U (en) * | 2013-12-04 | 2014-06-11 | 中航华东光电有限公司 | Night-vision compatible backlight module |
| CN103629603A (en) * | 2013-12-16 | 2014-03-12 | 中航华东光电有限公司 | High-brightness and wide-color-gamut direct type backlight module and liquid crystal display applying module |
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| 周志敏: "《LCD背光源技术》", 31 August 2009 * |
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Application publication date: 20150325 |
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