CN110133911A - Backlight module and airborne display device - Google Patents
Backlight module and airborne display device Download PDFInfo
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- CN110133911A CN110133911A CN201910402974.5A CN201910402974A CN110133911A CN 110133911 A CN110133911 A CN 110133911A CN 201910402974 A CN201910402974 A CN 201910402974A CN 110133911 A CN110133911 A CN 110133911A
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- light source
- backlight module
- source
- diffuser plate
- substrate
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
Abstract
The embodiment of the present application provides a kind of backlight module and airborne display device.The backlight module includes: multiple light sources component and substrate, and the multiple light source assembly is arranged in array on the substrate；Each light source assembly includes the different mini LED source of multiple colors, and multiple mini LED sources are arranged in array in the range of each group light source assembly is located at the substrate.The embodiment of the present application realizes the lightening of backlight module and has the advantages that high reliability.Light-source brightness can also be effectively promoted in the lower situation of power consumption additionally, due to using mini LED source, and it also has the technical effects such as the shortening R&D cycle is shorter and heat dissipation effect is preferable.
Description
Technical field
This application involves technical field of aerospace, specifically, this application involves a kind of backlight module and airborne display devices.
Background technique
The display device being normally applied aboard has required night vision compatible function.So-called night viewing compatible refers to building ring
Display device and lighting source in border will not mutually be interfered with Night Vision Imaging System, and guarantee Glassless in certain situation.
Aircraft is in night execution task, if influencing maximum master to Night Vision Imaging System using the display device of general backlight mould group
If the light of near infrared band, conventional display device can launch the very high feux rouges of energy and infrared light, and meeting severe jamming flies
Night Vision Imaging System in office staff's wearable device, therefore it is required that the display device for being applied to aircraft must be filtered out 610~930 and receive
Light in rice range, but the gamut range of backlight module becomes smaller after optical filtering, causes very big be stranded to the use of observer
It is difficult.
Solution in the prior art is to solve the problems, such as this using optical filter, will filter when needing night to execute task
Mating plate is loaded onto, and is again removed optical filter again when executing task daytime, is caused using upper very inconvenient.Another scheme is
Using double mode backlight module, the mainly white switching for realizing mode round the clock with color mixture LED of application.It is specific
Backlight mode generally use straight-down negative and side-light type, but it is thick and heavy due to straight-down negative, to accomplish highlighted to need to dissipate well
Heat structure；The luminance raising space of side entering type is limited, and development cost is higher and the R&D cycle is longer.It is to adopt there are also a kind of scheme
Scheme with the Organic Light Emitting Diode of night viewing compatible performance as display device, the four color pixels even five colors, but due to the party
Case development cost is excessively high, and technology is still immature, imports the verifying phase that airborne display device also needs to grow very much.
Summary of the invention
The application is directed to the shortcomings that existing way, proposes a kind of backlight module and airborne display device, existing to solve
Power consumption existing for the backlight module of technology is high, volume is big or the technical problems such as the service life is short.
First aspect, the embodiment of the present application provide a kind of backlight module, comprising: multiple light sources component and substrate,
Multiple light sources component is arranged in array on substrate；Each light source assembly includes the different mini light emitting diode of multiple colors
Light source, multiple mini LED sources are arranged in array in the range of each light source assembly is located at substrate.
In the embodiment of the application, the different mini LED source of multiple colors includes the first light-emitting diodes
Pipe light source, the second LED source, third LED source and the 4th LED source, and first shines
Diode light-source, the second LED source and the mixing of third LED source generate white light, the 4th light emitting diode
The dominant wavelength of light source is less than 610 nanometers.
In the embodiment of the application, the different mini LED source of multiple colors is uniformly distributed, and the
One LED source is red light source, the second LED source is green light source, third LED source is
Blue-light source and the 4th LED source are orange light source.
In the embodiment of the application, the operating mode of backlight module includes daytime mode and night mode；It is red light source, green
For working under daytime mode, green light source, blue-light source and orange light source are used under night mode for color light source and blue-light source
Work.
In the embodiment of the application, red light source, green light source and orange light source are parallel to the size phase of substrate
Together, and blue-light source be parallel to substrate size be greater than red light source, green light source and orange light source size.
In the embodiment of the application, backlight module further includes backboard, center and diffuser plate；Substrate is set to backboard
Inner surface, diffuser plate are set to side of the substrate far from backboard and keep set distance, and the marginal zone of diffuser plate with substrate
The cooperation of the position limiting structure of domain and backboard, center includes interconnecting piece and supporting part, and interconnecting piece is fixedly connected with the side of backboard, contact
Portion is pressed against the edge of diffuser plate from the direction perpendicular to diffuser plate, and cooperates fixed diffuser plate with position limiting structure.
In the embodiment of the application, backboard upper surface is recessed with limiting slot, and substrate is set by the fixation of thermally conductive articulamentum
It is placed in limiting slot.
In the embodiment of the application, thermally conductive articulamentum is heat-conducting glue band.
In the embodiment of the application, position limiting structure is the flange that back plate edges protrude upward, the inside top of flange
With the groove for accommodating diffuser plate.
In the embodiment of the application, there is a gap, the width in gap between the side of diffuser plate and the side wall of groove
Degree is 0.3 millimeter or more；And liquid buffer is filled in gap.
In the embodiment of the application, it is respectively provided between supporting part and diffuser plate and between position limiting structure and diffuser plate
Flexible gasket.
In the embodiment of the application, diffuser plate is the diffuser plate of polycarbonate material, and backboard and center are all made of aluminium
The backboard and center of alloy material.
The second aspect, the embodiment of the present application provides a kind of airborne display device, including as first aspect provides
Backlight module, and the display panel of the light-emitting surface side of backlight module is set.
Technical solution bring advantageous effects provided by the embodiments of the present application are:
The embodiment of the present application on substrate by being evenly arranged with multiple light sources component, and each light source assembly is by more
A mini LED source composition, due to mini light-emitting diodes small volume itself, and service life is longer, can make
The backlight module of the embodiment of the present application realizes lightening and has the advantages that high reliability.It shines additionally, due to using mini
Diode light-source can also effectively promote light-source brightness in the lower situation of power consumption, and can effectively shorten the R&D cycle,
And heat dissipation effect preferably etc. technical effects.
The additional aspect of the application and advantage will be set forth in part in the description, these will become from the following description
It obtains obviously, or recognized by the practice of the application.
Detailed description of the invention
The application is above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is a kind of partial structure diagram of backlight module provided by the embodiments of the present application；
Fig. 2 is the partial structure diagram of another backlight module provided by the embodiments of the present application；
Fig. 3 is a kind of backlight module partial schematic sectional view provided by the embodiments of the present application.
Specific embodiment
The application is described below in detail, the example of embodiments herein is shown in the accompanying drawings, wherein identical from beginning to end
Or similar label indicates same or similar component or component with the same or similar functions.In addition, if known technology
Detailed description the application shown is characterized in unnecessary, then omit it.Below with reference to attached drawing description
Embodiment is exemplary, and is only used for explaining the application, and cannot be construed to the limitation to the application.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term), there is meaning identical with the general understanding of those of ordinary skill in the application fields.Should also
Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art
The consistent meaning of meaning, and unless idealization or meaning too formal otherwise will not be used by specific definitions as here
To explain.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It should be understood that when we claim element to be " connected " or " coupled " to another
When element, it can be directly connected or coupled to other elements, or there may also be intermediary elements.In addition, used herein
" connection " or " coupling " may include being wirelessly connected or wirelessly coupling.Wording "and/or" used herein includes one or more
A associated whole for listing item or any cell and all combination.
How the technical solution of the application and the technical solution of the application are solved with specifically embodiment below above-mentioned
Technical problem is described in detail.
The embodiment of the present application provides a kind of backlight module, and the structural schematic diagram of the backlight module is as shown in Figure 1, comprising:
Multiple light sources component 1 and substrate 2, multiple light sources component 1 are arranged in array on substrate 2；Each light source assembly 1 includes more
The different mini LED source of a color (Mini LED), multiple mini LED sources are arranged in array in each
Light source assembly 1 is located in the range of substrate 2.
As shown in Figure 1, multiple light sources component 1 can be arranged in array on substrate 2, and multiple light sources component 1 is uniform
Be arranged on substrate 2.Each light source assembly 1 may include the different mini LED source of four colors, and four
A mini LED source is arranged in array in the range of each light source assembly 1 is located at substrate 2.Specifically, Duo Geguang
All mini LED sources that source component 1 includes are uniformly and array is arranged on substrate 2.But need to illustrate
It is that the embodiment of the present application does not limit the quantity for the mini LED source that each light source assembly 1 specifically includes, it can also
To be more than four.Another aspect the embodiment of the present application does not limit the quantity and spacing of light source assembly, those skilled in the art equally
Setting can be voluntarily adjusted according to the size and demand of substrate.
The embodiment of the present application on substrate by being evenly arranged with multiple light sources component, and each light source assembly is by more
A mini LED source composition, due to mini light-emitting diodes small volume itself, and service life is longer, can make
The backlight module of the embodiment of the present application realizes lightening and has the advantages that high reliability.It shines additionally, due to using mini
Diode light-source can also effectively promote light-source brightness in the lower situation of power consumption, and can effectively shorten the R&D cycle,
And heat dissipation effect preferably etc. technical effects.
In the embodiment of the application, as shown in Figure 1, the different mini LED source of multiple colors includes the
One LED source L1, the second LED source L2, third LED source L3 and the 4th light emitting diode
Light source L4, and the first LED source L1, the second LED source L2 and third LED source L3 are mixed
It closes and generates white light, the dominant wavelength of the 4th LED source L4 is less than 610 nanometers.Using above-mentioned design, this Shen can be made
Please the backlight module of embodiment the function of night viewing compatible may be implemented so that the embodiment of the present application can be applied to aviation neck
Domain, and Night Vision Imaging System on aircraft will not be interfered.Specifically, it is mixed by first to third LED source
Closing generation white light can work under daytime mode, combine other LED sources at night by the 4th LED source L4
It works under mode, since the dominant wavelength of the 4th LED source L4 is less than 610 nanometers, when working under night mode not
Long interference can be made to Night Vision Imaging System, to realize the night vision compatible function applied to aviation field.
It should be noted that the embodiment of the present application and limit first to third LED source wavelength and face
Color, those skilled in the art can voluntarily select to be arranged according to demand.But when first to third LED source its
One or both of with the 4th LED source cooperating when, wavelength should also be as less than 610 nanometers.
In the embodiment of the application, the different mini LED source of multiple colors is uniformly distributed, and the
One LED source L1 is red light source, the second LED source L2 is green light source, third light emitting diode light
Source L3 is blue-light source and the 4th LED source L4 is orange light source.
As shown in Figure 1, the different mini LED source of multiple colors can use mini light-emitting diodes tube core
The direct patch of piece is on substrate 2, and the patch height of multiple mini light-emitting diode chip for backlight unit is consistent.In practical application, this
Application embodiment does not need to generate white light by way of exciting yellow fluorescent powder, can directly pass through red light source, green light
Source and blue-light source work under daytime mode, may be implemented to be highlighted in order to read；Orange light source, green light source and indigo plant
Color light source works under night mode, to realize the function of night viewing compatible, can meet and read viewing demand and not
Night Vision Imaging System on aircraft can be interfered.Scheme compared with the existing technology, the application not only can be in daytime modes
Under effectively increase brightness, and also achieve night viewing compatible mode.
In the embodiment of the application, the operating mode of backlight module includes daytime mode and night mode；It is red light source, green
For working under daytime mode, green light source, blue-light source and orange light source are used under night mode for color light source and blue-light source
Work.
As shown in FIG. 1, FIG. 1 is the partial schematic diagram of substrate 2, red light source, green light source, blue-light source and orange light source
Four kinds of colors are uniformly distributed, and its outer dimension is consistent.It is illustrated in this present embodiment with 3.5 cun of backlight modules, it is big
Generally needing mini light-emitting diode chip for backlight unit is 2000 or so, and power consumption is 1 watt.Red light source under daytime mode, green light source and
Three kinds of light source colour mixtures of blue-light source work at white light；Can be adopted under night mode green light source, blue-light source and orange light source into
Row colour mixture works to realize the function of night viewing compatible.Using above-mentioned design, can making the embodiment of the present application, not only power consumption is lower,
The service life is longer, and can also realize night vision compatible function and the risk without generating veiling glare.
In the embodiment of the application, as shown in Fig. 2, red light source, green light source and orange light source are parallel to substrate
2 size is identical, and blue-light source be parallel to substrate 2 size be greater than red light source, green light source and orange light source it is parallel
In the size of substrate 2.It is using the reason of above-mentioned design, it is lower based on blue-light source luminous efficiency, therefore by blue-light source
The larger for being parallel to substrate 2, so as to increase the luminous efficiency of blue-light source.And then it can effectively improve daytime mode
Under brightness, and under night mode, since assorted light source can control respectively, and height is consistent, not the risk of interference, separately
The brightness that orange light source, green light source and blue-light source can also be adjusted by controlling electric current outside, realizes the function of night viewing compatible,
So as to further prevent from interfering Night Vision Imaging System.
In the embodiment of the application, backlight module further includes backboard 3, center 4 and diffuser plate 5；Substrate 2 is set to back
The inner surface of plate 3, diffuser plate 5 are set to side of the substrate 2 far from backboard 3 and keep set distance, and diffuser plate with substrate 2
5 fringe region and the position limiting structure 31 of backboard 3 cooperate, and center 4 includes interconnecting piece 41 and supporting part 42, interconnecting piece 41 and backboard
3 side is fixedly connected, and supporting part 42 is pressed against the edge of diffuser plate 5 from the direction perpendicular to diffuser plate 5, and ties with limit
Structure 31 cooperates fixed diffuser plate 5.
As shown in figure 3, rectangular configuration can be made using light material in backboard 3, edge can be convexly equipped with position limiting structure
31.Substrate 2 can be set in the inner surface of backboard 3, and diffuser plate 5 can be set in side of the substrate 2 far from backboard 3 and and substrate
2 keep set distances, the set distance can be higher than it is mini shine two pipe light sources height, but the embodiment of the present application to this simultaneously
Without limiting, the fringe region of diffuser plate 5 can cooperate with position limiting structure 31 to be fixedly installed.Center 4 can use and backboard 3
Identical material is made, and can be coated on the edge of backboard 3.
Optionally, center 4 may include interconnecting piece 41 and supporting part 42, and interconnecting piece 41 and the side of backboard 3 can use
The mode of dormant bolt is fixedly connected, and supporting part 42 is pressed against the edge of diffuser plate 5 from the direction perpendicular to diffuser plate 5, and
Cooperate fixed diffuser plate 5 with position limiting structure 31.Using above-mentioned design, so that the not only structure letter of the backlight module of the embodiment of the present application
It is single reliable, and the integral thickness of backlight module can be between 3.5~4 millimeters, to meet lightening demand, and then can be to answer
More spaces are saved with the product of the embodiment of the present application.
It should be noted that the embodiment of the present application does not limit the specific structure and material of backlight module, art technology
Personnel can voluntarily adjusted design according to demand.Such as backboard and center can also be made of the higher heat resistant plastice of intensity,
Connecting between backboard and center can also be by the way of bonding, therefore the embodiment of the present application is not limited thereto.
In the embodiment of the application, 3 upper surface of backboard is recessed with limiting slot 32, and substrate 2 is solid by thermally conductive articulamentum 6
Surely it is set in limiting slot 32.As shown in figure 3, the overall dimensions of limiting slot 32 can be slightly larger than the size of substrate 2, substrate 2 can
To be fixedly installed in limit 32 by thermally conductive articulamentum 6.Using above-mentioned design, not only can in order to substrate installation and tear open
It unloads, and can further reduce the backlight module thickness of the embodiment of the present application.On the other hand not only using thermally conductive articulamentum
Can preferable fixed substrate, but also can effectively improve the heat dissipation effect of the backlight module of the embodiment of the present application.Optionally,
Thermally conductive articulamentum 6 can be heat-conducting glue band.It should be noted that the application does not limit the fixed form of substrate and limiting slot,
Such as it can also be fixedly connected using screw connection manner, therefore the embodiment of the present application is not limited thereto.
In the embodiment of the application, position limiting structure 31 is the flange that protrudes upward of 3 edge of backboard, in the top of flange
Side has the groove 311 for accommodating diffuser plate 5.As shown in figure 3, position limiting structure 31 can protrude upward for the edge of backboard 3
Flange, the space that position limiting structure 31 surrounds can be used for accommodating substrate 2.On the inside of flange top can with recessed fluted 311, with
For accommodating the edge of diffuser plate 5.Using above-mentioned design, so that the backlight module of the embodiment of the present application can have preferable resist
Shock stability reduces economic cost so as to effectively prolong the service life.
In the embodiment of the application, as shown in figure 3, having one between the side of diffuser plate 5 and the side wall of groove 311
Gap, the width in gap are 0.3 millimeter or more.Optionally, liquid buffer is filled in gap.Using above-mentioned design, so that
The installation and disassembly of diffuser plate are more simple and fast, so as to effectively improve the efficiency of assembling.In addition liquid buffer can
To use liquid-state silicon gel, the whole anti-seismic performance of the embodiment of the present application can be further improved, it is in addition slow using liquid
Diffuser plate can also be auxiliarily fixed in electuary, so that the embodiment of the present application structure is more reliable and more stable.
In the embodiment of the application, as shown in figure 3, between supporting part 42 and diffuser plate 5 and position limiting structure 31 with
Flexible gasket (not shown) is provided between diffuser plate 5.Specifically, which can use foam gasket system
At can be set in the upper and lower surface of 5 fringe region of diffuser plate, supporting part 42 and position limiting structure when vibration can be effectively prevented
31 direct shock-diffusion plates so as to prevent diffusion sheet 5 to be damaged, and then can effectively improve the embodiment of the present application use
Service life.It should be noted that the application does not limit the specific material of flexible gasket, such as can be using silica gel or rubber and plastic etc.
Flexible material is made, and those skilled in the art can voluntarily adjust setting according to demand.
In the embodiment of the application, as shown in figure 3, diffuser plate 5 be polycarbonate material diffuser plate 5, backboard 3 and
Center 4 is all made of the backboard 3 and center 4 of aluminum alloy material.Diffuser plate 5 is made of polycarbonate material, can to spread
The surface hardness of plate is high, and anti shock and vibration grade is high, and more stable in high and low temperature environment, and then can effectively improve this Shen
The applicability and service life that please implement.In addition backboard and center can be made of aluminum alloy material, not only lighter in weight
And intensity is higher, so as to realize lightening demand.Backboard and center can also be made of other materials, such as its
It can be with magnesium alloy, titanium alloy, nonmetallic composite and carbon fibre material etc..It should be understood that the embodiment of the present application
The material being related to, which is illustrative only, to be used, and the application is not limited to, and those skilled in the art can be according to practical work
Condition voluntarily adjusts setting.
The second aspect, the application provide a kind of airborne display device, the backlight module including the offer of such as first aspect,
And the display panel of the light-emitting surface side of backlight module is set.Since display device provided by the present application is not only simple in structure
Reliably, more frivolous, in addition it also has the function of night viewing compatible, therefore it can be applied to multiple fields, such as can answer
Spaceship, space capsule or space shuttle etc. for space industry, or be also to be applied to other needs with night vision imaging
In the compatible application scenarios of system, therefore this embodiment of the present application is not limited thereto.
Using the embodiment of the present application, at least can be realized it is following the utility model has the advantages that
The embodiment of the present application on substrate by being evenly arranged with multiple light sources component, and each light source assembly is by more
A mini LED source composition, due to mini light-emitting diodes small volume itself, and service life is longer, can make
The backlight module of the embodiment of the present application realizes lightening and has the advantages that high reliability.It shines additionally, due to using mini
Diode light-source can also effectively promote light-source brightness in the lower situation of power consumption, and can effectively shorten the R&D cycle,
And heat dissipation effect preferably etc. technical effects.
In the description of the present application, it is to be understood that term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
Term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more of the features.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or
It is more than two.
In the description of the present application, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be to be connected directly, the connection inside two elements can also be can be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
In the description of this specification, particular features, structures, materials, or characteristics can be real in any one or more
Applying can be combined in any suitable manner in example or example.
The above is only some embodiments of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (13)
1. a kind of backlight module characterized by comprising multiple light sources component and substrate, the multiple light source assembly are in battle array
Column are arranged on the substrate；Each light source assembly includes the different mini LED source of multiple colors, more
A mini LED source is arranged in array in the range of each light source assembly is located at the substrate.
2. backlight module as described in claim 1, which is characterized in that the different mini light emitting diode light of the multiple color
Source includes the first LED source, the second LED source, third LED source and the 4th light-emitting diodes
Pipe light source, and first LED source, the second LED source and the mixing of third LED source
White light is generated, the dominant wavelength of the 4th LED source is less than 610 nanometers.
3. backlight module as claimed in claim 2, which is characterized in that the different mini light emitting diode light of the multiple color
Source is uniformly distributed, and the first LED source is red light source, the second LED source is green light source, described
Third LED source is blue-light source and the 4th LED source is orange light source.
4. backlight module as claimed in claim 3, which is characterized in that the operating mode of the backlight module include daytime mode and
Night mode；The red light source, green light source and blue-light source under daytime mode for working, the green light source, blue light
Source and orange light source under the night mode for working.
5. backlight module as claimed in claim 3, which is characterized in that the red light source, green light source and orange light source are flat
Row in the substrate size it is identical, and the blue-light source be parallel to the substrate size be greater than the red light source,
The size of green light source and orange light source.
6. as claim 1 to 5 described in any item backlight modules, which is characterized in that the backlight module further include backboard,
Center and diffuser plate；The substrate is set to the inner surface of the backboard, and the diffuser plate is set to the substrate far from described
The side of backboard and set distance, and the limit knot of the fringe region of the diffuser plate and the backboard are kept with the substrate
Structure cooperation, the center includes interconnecting piece and supporting part, and the interconnecting piece is fixedly connected with the side of the backboard, the contact
Portion is pressed against the edge of the diffuser plate from the direction perpendicular to the diffuser plate, and cooperates fixed institute with the position limiting structure
State diffuser plate.
7. backlight module as claimed in claim 6, which is characterized in that the backboard upper surface is recessed with limiting slot, the base
Plate is fixedly installed in the limiting slot by thermally conductive articulamentum.
8. backlight module as claimed in claim 7, which is characterized in that the thermally conductive articulamentum is heat-conducting glue band.
9. backlight module as claimed in claim 6, which is characterized in that the position limiting structure is that the back plate edges protrude upward
Flange, the inside top of the flange has the groove for accommodating the diffuser plate.
10. backlight module as claimed in claim 9, which is characterized in that the side wall of the side of the diffuser plate and the groove
Between there is a gap, the width in the gap is 0.3 millimeter or more；And liquid buffer is filled in the gap.
11. backlight module as claimed in claim 6, which is characterized in that between the supporting part and the diffuser plate and institute
It states and is provided with flexible gasket between position limiting structure and the diffuser plate.
12. backlight module as claimed in claim 6, which is characterized in that the diffuser plate is the diffuser plate of polycarbonate material,
The backboard and center are all made of the backboard and center of aluminum alloy material.
13. a kind of airborne display device, which is characterized in that including backlight mould according to any one of claims 1 to 12
Group, and the display panel of the light-emitting surface side of the backlight module is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910402974.5A CN110133911A (en) | 2019-05-15 | 2019-05-15 | Backlight module and airborne display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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