CN105717706A - Double-sided backlight source and double-sided display device - Google Patents
Double-sided backlight source and double-sided display device Download PDFInfo
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- CN105717706A CN105717706A CN201610280322.5A CN201610280322A CN105717706A CN 105717706 A CN105717706 A CN 105717706A CN 201610280322 A CN201610280322 A CN 201610280322A CN 105717706 A CN105717706 A CN 105717706A
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 16
- 230000005855 radiation Effects 0.000 claims description 21
- 230000005142 aphototropism Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 7
- 230000009467 reduction Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
- G02F1/133602—Direct backlight
-
- 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
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
-
- 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
- G02F1/133628—Illuminating devices with cooling means
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a double-sided backlight source and a double-sided display device and relates to the technical field of display. Under the condition that the double-sided display device dissipates heat normally, energy consumption and noises are not increased and the whole machine is relatively light. The double-sided backlight source can provide double-sided backlight for the double-sided display device, and comprises an outer frame and a backlight module arranged in the outer frame, wherein the backlight module comprises a light emitting source; and vent holes are formed in the parts, corresponding to the light emitting source, of upper and lower edge frames of the outer frame, so that a heat dissipation channel for forming natural air convection is formed in the outer frame. The double-sided backlight source is used for realizing heat dissipation of the double-sided display device.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of double-face backlight and double-side display device.
Background technology
At present, becoming basically universal of display device, become a part indispensable in people's life.General display device is all that one side shows, then patch wall is installed, and meets primary demand, but, AT STATION, airport, some densely populated place such as conference and exhibition center public place, the display device that one side shows cannot well meet spectators and watch needs.
Prior art provides a kind of double-sided display module, as it is shown in figure 1, include installing frame 01, and is fixed on the first display module 02 and the second display module 03 before and after installing frame 01, it is achieved the double-sided display of display device.As shown in Figure 1, first display module 02 includes the first lamp plate 021, first blooming piece 022 and the first liquid crystal panel 023, second display module 03 includes the second lamp plate 031 (not shown), second blooming piece 032 and the second liquid crystal panel 033, owing to the first lamp plate 021 in installing frame 01 and the second lamp plate 031 operationally caloric value are bigger, the temperature being easily caused double-sided display module is too high, affect display effect, therefore, in order to dispel the heat in prior art, installing frame 01 left and right sides frame is additionally provided with ventilation assembly 04, including the multiple vents 041 offered on the frame of installing frame 01 left and right sides, and the multiple fans 042 in the setting of corresponding multiple vent 041 positions, thus, double-sided display module can be dispelled the heat.
But, the technical scheme of prior art has the disadvantage in that heat radiation is main and adopts multiple fan 042 forced heat radiations, and therefore noise is relatively big, and causes energy consumption to increase；Owing to the volume of fan is relatively big, and then make the thickness of complete machine thicker.
Summary of the invention
Embodiments of the invention provide a kind of double-face backlight and double-side display device, under the premise of double-side display device proper heat reduction, will not increase energy consumption and noise, and complete machine is more frivolous.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
A kind of double-face backlight, two-sided back light can be provided for double-side display device, including housing, and it is located at the backlight module in described housing, described backlight module includes luminous source, on the upper and lower frame of described housing, the position of corresponding described luminous source offers air vent respectively, makes to be formed with in described housing the heat dissipation channel of natural convection air.
The double-face backlight that the embodiment of the present invention provides, can providing two-sided back light for double-side display device, meanwhile, on the upper and lower frame of the housing outside backlight module, the position of corresponding luminous source is provided with air vent, so, due to the effect of gravity, even if environment is calm, between upper-lower position, there is air pressure difference, natural convection air motion always upwards can be produced, namely it is formed with the heat dissipation channel of natural convection air in housing, and then luminous source can be dispelled the heat, make display device proper heat reduction.Compared to existing technology, dispel the heat fan-free, will not increase energy consumption and noise, and complete machine is more frivolous.
On the other hand, additionally providing a kind of double-side display device, including above-mentioned double-face backlight, two light emission side of corresponding described double-face backlight are respectively equipped with display floater.
The double-side display device that the embodiment of the present invention provides, owing to being provided with double-face backlight, thus, have only to that in double-face backlight both sides display floater is installed again and can realize double-sided display, the heat dissipation channel of natural convection air it is formed with in housing, and then luminous source can be dispelled the heat, make display device proper heat reduction.Compared to existing technology, owing to being provided without fan cooling, energy consumption and noise will not be increased, and complete machine is more frivolous.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of double-sided display module of prior art；
Fig. 2 is the structural representation of embodiment of the present invention double-face backlight；
Fig. 3 is the structural representation of the housing of embodiment of the present invention double-face backlight；
Fig. 4 is the decomposition texture schematic diagram of embodiment of the present invention double-face backlight；
Fig. 5 is the structural representation of the luminous source of embodiment of the present invention double-face backlight；
Fig. 6 is the structural representation of the heat radiation rack of embodiment of the present invention double-face backlight；
Fig. 7 is the backlight module of embodiment of the present invention double-face backlight is structural representation during side entering type；
Fig. 8 is the structural representation of embodiment of the present invention double-side display device；
Fig. 9 is the decomposition texture schematic diagram of embodiment of the present invention double-side display device；
Figure 10 is the side sectional view of embodiment of the present invention double-side display device.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present invention one double-face backlight and double-side display device are described in detail.
In describing the invention, it will be appreciated that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " be based on orientation shown in the drawings or position relationship; be for only for ease of the description present invention and simplifying and describe; rather than instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
In describing the invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in the present invention.
Term " first ", " second " only for descriptive purposes, and it is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more these features.In describing the invention, except as otherwise noted, " multiple " are meant that two or more.
A kind of double-face backlight 1 that the embodiment of the present invention provides, as shown in Figure 2,3, 4, two-sided back light can be provided for double-side display device, including housing 2, and it is located at the backlight module 3 in housing 2, backlight module 3 includes luminous source 31, and on the upper and lower frame of housing 2, the position of corresponding luminous source 31 offers air vent 21 respectively, makes to be formed with in housing 2 heat dissipation channel of natural convection air.
The double-face backlight that the embodiment of the present invention provides, two-sided back light can be provided for double-side display device, simultaneously, as shown in Figure 3, owing to the position of luminous source 31 corresponding on the upper and lower frame of the housing 2 outside backlight module 3 is provided with air vent 21, so, effect due to gravity, even if environment is calm, there is air pressure difference between upper-lower position, natural convection air motion always upwards can be produced, namely in housing 2, be formed with the heat dissipation channel of natural convection air, and then luminous source 31 can be dispelled the heat, make display device proper heat reduction.Compared to existing technology, dispel the heat fan-free, will not increase energy consumption and noise, and complete machine is more frivolous.
It should be noted that double-face backlight 1 can provide two-sided back light for double-side display device, wherein, the structure of backlight module 3 can be divided into by light source position: down straight aphototropism mode set and side entrance back module, divides two kinds of embodiments to illustrate below:
Embodiment one
As shown in Figure 4 and Figure 5, backlight module 3 is down straight aphototropism mode set, luminous source 31 includes the heat radiation rack 311 being made from a material that be thermally conductive and the first lamp plate 312 and the second lamp plate 313 being arranged at heat radiation rack 311 both sides, on first lamp plate 312 and the second lamp plate 313, distribution has point source, and air vent 21 is corresponding with heat radiation rack 311 position.As shown in Figure 5, on first lamp plate 312 and the second lamp plate 313, distribution has point source, it is arranged at heat radiation rack 311 both sides, respectively can provide light source in heat radiation rack both sides, simultaneously, heat radiation rack is made from a material that be thermally conductive, and can be distributed by the mode conducted, radiate by the amount of heat that the point source on the first lamp plate 312 and the second lamp plate 313 produces, and then is shed by heat by heat dissipation channel.
It should be noted that, point source can be cathode fluorescent tube or light emitting diode (abbreviation LED, LightEmittingDiode), compare, light emitting diode has the plurality of advantages such as volume is little, response time fast, life-span length, non-friable, colour gamut is high, packaging body kind is many, therefore, in this embodiment, it is preferred to use light emitting diode is as point source.
In order to make the natural convection air better effects if of heat dissipation channel, as it is shown on figure 3, air vent 21 is multiple, multiple air vents 21 are uniformly distributed on the upper and lower frame of housing 2.Offering multiple air vent 21, the natural convection air that can make heat dissipation channel is more smooth and easy, and then radiating effect is better, meanwhile, in order to the stability of outward appearance and structure considers, multiple air vents 21 are uniformly distributed with on the upper and lower frame of housing 2.
The light launched due to point source is dispersed, therefore, in order to make full use of light, as shown in Figure 4, backlight module 3 includes the first reflector plate 32 and the second reflector plate 33, and the first reflector plate 32 and the second reflector plate 33 offer multiple through hole, and point source can one_to_one corresponding traverse through hole.It is provided with the first reflector plate 32 and the second reflector plate 33, and point source can pass the through hole on the first reflector plate 32 and the second reflector plate 33 by one_to_one corresponding, as such, it is possible to the light back of non-for point source directive display device display area is utilized, until correct directive display area.
Heat in backlight module 3 focuses primarily upon on the first lamp plate 312 and the second lamp plate 313, thus, in order to make the first lamp plate 312 and the second lamp plate 313 better heat-radiation effect, as shown in Figure 5 and Figure 6, heat radiation rack 311 is respectively provided on two sides with multiple protruding 3111, first lamp plate 312 and the second lamp plate 313 are installed on protruding 3111, make the first lamp plate 312 and the second lamp plate 313 respectively and there is heat radiation gap between heat radiation rack 311.So, enter heat dissipation channel free convection air, can from the first lamp plate 312 and the second lamp plate 313 the heat radiation gap process respectively and between heat radiation rack 311, the amount of heat on the first lamp plate 312 and the second lamp plate 313 is shed in time, makes better heat-radiation effect.
It should be noted that the backlight module 3 in the present embodiment, as shown in Figure 4, outside near the first lamp plate 312 and the first reflector plate 32 side, it is sequentially provided with first diffuser plate the 34, first blooming piece 36, glue frame 38 and shock absorber part 39；Outside near the second lamp plate 313 and the second reflector plate 33 side, it is sequentially provided with second diffuser plate the 35, second blooming piece 37, glue frame 38 and shock absorber part 39.Wherein, the first diffuser plate 34 and the second diffuser plate 35 constitute two airtight lamp boxes with the first reflector plate 32 and the second reflector plate 33 respectively, can by uneven equalizing light rays；First blooming piece 36 and the second blooming piece 37 can be diffusion sheet or brightness enhancement film, and diffusion sheet can by further for optics homogenization, and brightness enhancement film can increase the brightness of optics, certainly, it is possible to be superimposed setting by diffusion sheet and brightness enhancement film；All parts in above-mentioned backlight module 3 can be fixed in housing 2 by glue frame 38；Shock absorber part 39 be disposed to protection backlight module 3, and the display device miscellaneous part being connected with double-face backlight.
Embodiment two
As it is shown in fig. 7, the backlight module 3 of the present embodiment is side entrance back module, luminous source 31 includes lamp bar 311 ', and air vent 21 (not shown) is corresponding with lamp bar 311 ' position.When backlight module 3 is side entering type, its heat is mainly derived from lamp bar 311 ', therefore, in order to backlight module 3 is effectively dispelled the heat, air vent 21 is corresponding with lamp bar 311 ' position, makes lamp bar be in heat dissipation channel.
Specifically, in order to make luminous source 31 can provide backlight for double-sided display, as shown in Figure 7, backlight module 3 includes the first light guide plate 32 ' and the second light guide plate 33 ', first light guide plate 32 ' is all relative with lamp bar 311 ' with the incidence surface of the second light guide plate 33 ', the opposing setting of exiting surface of the first light guide plate 32 ' and the second light guide plate 33 '.So, the first light guide plate 32 ' will enter its internal light guiding Figure below exiting surface, and the second light guide plate 33 ' will enter top exiting surface in its internal light guiding figure, it is achieved provides backlight for double-sided display.
It should be noted that, as shown in Figure 7, in the present embodiment backlight module 3, the first blooming group 34 ' and the second blooming group 35 ' outwards it is additionally provided with near the first light guide plate 32 ' and the second light guide plate 33 ', first blooming group 34 ' and the second blooming group 35 ' act as homogenization, blast light, concrete structure is similar with embodiment one, does not repeat them here.
On the other hand, the embodiment of the present invention also provides for a kind of double-side display device, and as shown in Figure 8 and Figure 9, including above-described double-face backlight 1, two light emission side of corresponding double-face backlight 1 are respectively equipped with display floater 4.
The double-side display device that the embodiment of the present invention provides, as shown in Figure 8 and Figure 9, owing to being provided with double-face backlight 1, thus, have only to that display floater 4 is installed in double-face backlight 1 both sides again and can realize double-sided display, it is formed with the heat dissipation channel of natural convection air in housing 2, and then luminous source 31 can be dispelled the heat, make display device proper heat reduction.Compared to existing technology, owing to being provided without fan cooling, energy consumption and noise will not be increased, and complete machine is more frivolous.
For fixed display panel 4, in addition it is also necessary to arrange shell, as shown in Figure 8 and Figure 9, also including shell 5, the edge of double-face backlight 1 and display floater 4 can be coated with by shell 5.The edge of double-face backlight 1 and display floater 4 can be coated with by shell 5, and then display floater 4 is fixed, simultaneously, proper heat reduction for heat dissipation channel, as shown in Figure 10, air inlet 51 is offered in the bottom of shell 5, air inlet 51 connects with the air vent 21 on the lower frame of housing 2, the top of shell 5 offers air outlet 52, air outlet 52 connects with the air vent 21 on the upper side frame of housing 2, thus, the air vent 21 that air draught can pass through on the lower frame of air inlet 51 and housing 2 enters heat dissipation channel, it is then passed through the air vent 21 on the upper side frame of housing 2 and air outlet 52 is discharged, and then realize the heat radiation to display device.Air inlet 51 can be opened in the shell 5 position near lower section, for instance on the lower frame of shell 5, connects with the air vent 21 on the lower frame of housing 2.
General, display device also needs to arrange guidance panel and speaker, as shown in Figure 8, be connected with speaker sound mouth at shell 5, thus, can utilize this structure, air inlet 51 is be opened in the speaker sound mouth below shell 5.
These are only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those familiar with the art in the technical scope that the invention discloses, the change that can readily occur in or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain described in claim.
Claims (10)
1. a double-face backlight, it is characterized in that, two-sided back light can be provided for double-side display device, including housing, and it is located at the backlight module in described housing, described backlight module includes luminous source, and on the upper and lower frame of described housing, the position of corresponding described luminous source offers air vent respectively, makes to be formed with in described housing the heat dissipation channel of natural convection air.
2. double-face backlight according to claim 1, it is characterized in that, described backlight module is down straight aphototropism mode set, described luminous source includes the heat radiation rack being made from a material that be thermally conductive and the first lamp plate and the second lamp plate that are arranged at described heat radiation rack both sides, on described first lamp plate and the second lamp plate, distribution has point source, and described air vent is corresponding with described heat radiation rack position.
3. double-face backlight according to claim 1, it is characterised in that described backlight module is side entrance back module, described luminous source includes lamp bar, and described air vent is corresponding with described lamp bar position.
4. the double-face backlight according to any one of claim 1-3, it is characterised in that described air vent is multiple, multiple described air vents are uniformly distributed on the upper and lower frame of described housing.
5. double-face backlight according to claim 2, it is characterised in that described backlight module includes the first reflector plate and the second reflector plate, and described first reflector plate and the second reflector plate offer multiple through hole, described point source can the one_to_one corresponding described through hole of traverse.
6. display device according to claim 2, it is characterized in that, described heat radiation rack is respectively provided on two sides with multiple projection, described first lamp plate and described second lamp plate and is installed in described projection, makes described first lamp plate and described second lamp plate respectively and there is heat radiation gap between described heat radiation rack.
7. double-face backlight according to claim 3, it is characterized in that, described backlight module includes the first light guide plate and the second light guide plate, and the incidence surface of described first light guide plate and the second light guide plate is all relative with described lamp bar, the opposing setting of exiting surface of described first light guide plate and the second light guide plate.
8. a double-side display device, it is characterised in that include the double-face backlight according to any one of claim 1-6, two light emission side of corresponding described double-face backlight are respectively equipped with display floater.
9. double-side display device according to claim 8, it is characterized in that, also include shell, the edge of described double-face backlight and described display floater can be coated with by described shell, the bottom of described shell offers air inlet, described air inlet connects with the air vent on the lower frame of described housing, and the top of described shell offers air outlet, and described air outlet connects with the air vent on the upper side frame of described housing.
10. double-side display device according to claim 9, it is characterised in that described air inlet is be opened in the speaker sound mouth below described shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280322.5A CN105717706A (en) | 2016-04-28 | 2016-04-28 | Double-sided backlight source and double-sided display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN106547133A (en) * | 2017-01-16 | 2017-03-29 | 上海启钧电子有限公司 | Double-sided display modular structure and its assemble method |
| CN107657902A (en) * | 2017-10-16 | 2018-02-02 | 广西南宁英凡达科技有限公司 | A kind of two-way LED electronic consoles of integrated vehicle-mounted |
| CN108347857A (en) * | 2017-01-24 | 2018-07-31 | 晶达光电股份有限公司 | Double-sided display device |
| TWI634811B (en) * | 2016-12-28 | 2018-09-01 | 晶達光電股份有限公司 | Double-sided display device |
| CN109307944A (en) * | 2018-12-13 | 2019-02-05 | 上海启钧电子有限公司 | Ultrathin double-face display module |
| CN110109341A (en) * | 2019-05-31 | 2019-08-09 | 宁波慈溪小家电创新设计研究院有限公司 | It is a kind of can the bi-directional display time device |
| US10827154B2 (en) | 2018-05-15 | 2020-11-03 | Au Optronics Corporation | Display device with rear light transmitting module |
| CN113219719A (en) * | 2021-04-23 | 2021-08-06 | 成都中电熊猫显示科技有限公司 | Backlight module, liquid crystal module and display device |
| CN113777820A (en) * | 2021-08-11 | 2021-12-10 | 苏州桐劼汽车电子有限公司 | Integrated double-backlight display structure |
| CN115574303A (en) * | 2022-09-26 | 2023-01-06 | 深圳市瀚达美电子有限公司 | Large-size LED backlight source with high heat dissipation performance |
| CN115933235A (en) * | 2022-12-09 | 2023-04-07 | 广东德星微电子有限公司 | Double-sided liquid crystal display screen |
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| CN106547133B (en) * | 2017-01-16 | 2024-01-30 | 上海启钧电子有限公司 | Double-sided display module structure and assembly method thereof |
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| CN109307944A (en) * | 2018-12-13 | 2019-02-05 | 上海启钧电子有限公司 | Ultrathin double-face display module |
| CN109307944B (en) * | 2018-12-13 | 2024-03-19 | 上海启钧电子有限公司 | Ultrathin double-sided display module |
| CN110109341A (en) * | 2019-05-31 | 2019-08-09 | 宁波慈溪小家电创新设计研究院有限公司 | It is a kind of can the bi-directional display time device |
| CN113219719A (en) * | 2021-04-23 | 2021-08-06 | 成都中电熊猫显示科技有限公司 | Backlight module, liquid crystal module and display device |
| CN113777820A (en) * | 2021-08-11 | 2021-12-10 | 苏州桐劼汽车电子有限公司 | Integrated double-backlight display structure |
| CN115574303A (en) * | 2022-09-26 | 2023-01-06 | 深圳市瀚达美电子有限公司 | Large-size LED backlight source with high heat dissipation performance |
| CN115933235A (en) * | 2022-12-09 | 2023-04-07 | 广东德星微电子有限公司 | Double-sided liquid crystal display screen |
| CN115933235B (en) * | 2022-12-09 | 2023-06-30 | 广东德星微电子有限公司 | Double-sided liquid crystal display |
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Application publication date: 20160629 |