CN107134262A - Low-power consumption display device - Google Patents
Low-power consumption display device Download PDFInfo
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- CN107134262A CN107134262A CN201710335392.0A CN201710335392A CN107134262A CN 107134262 A CN107134262 A CN 107134262A CN 201710335392 A CN201710335392 A CN 201710335392A CN 107134262 A CN107134262 A CN 107134262A
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- display screen
- module
- power supply
- control circuit
- circuit
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
Abstract
The present invention relates to a kind of low-power consumption display device, including：Control module, PWM drive modules, backlight module, power supply module and display screen；Power supply module includes current rectifying and wave filtering circuit, power factor correction circuit, resonant control circuit and accessory power supply submodule, current rectifying and wave filtering circuit is used to be connected with power supply, current rectifying and wave filtering circuit, power factor correction circuit and resonant control circuit are sequentially connected, resonant control circuit is connected with accessory power supply submodule, resonant control circuit is also connected with backlight module and display screen respectively, and accessory power supply submodule is connected with display screen；Accessory power supply submodule is used to power to display screen after resonant control circuit power-off.When display screen is standby, when the control circuit that shakes is unloaded, display screen is powered by accessory power supply submodule, the electric energy for control circuit no-load consumption of shaking is effectively reduced, effectively reduces the energy consumption of display screen, be easy to the long-time of display screen to use.
Description
Technical field
The present invention relates to technical field of LED display, more particularly to low-power consumption display device.
Background technology
With continuing to develop for LED (Light Emitting Diode, light emitting diode) Display Techniques, what LED was shown
Using more and more extensive.LED intelligent liquid-crystal TVs, LED liquid crystal advertisement screens, the field such as intelligent board is used mostly at present
100W-1KW power is powered, and most power supply is all by the way of half-bridge resonance, and one of such topological structure is significantly
Feature is that switching tube is operated in zero-voltage state (ZVS), and switching loss greatly reduces, to switching device used also phase
The reduction specification answered, highlights the characteristics of high power, green power supply of high efficiency and high power density.
But the topological structure of this half-bridge resonance has certain defect, its internal resonance circuit open circuit loss is big, causes
The power consumptions such as the display such as LED intelligent liquid-crystals TV and LED liquid crystal advertisement screens are higher, are unfavorable for the use of user.
The content of the invention
Based on this, it is necessary to big for resonance circuit open circuit loss in the topological structure of traditional LED half-bridge resonances shown,
Cause the power consumptions such as the display such as LED intelligent liquid-crystals TV and LED liquid crystal advertisement screens higher, be unfavorable for user use lack
It is sunken that there is provided a kind of low-power consumption display device.
A kind of low-power consumption display device, including：Control module, PWM drive modules, backlight module, power supply module and display
Screen, the control module is connected with the PWM drive modules and the display screen respectively, the PWM drive modules with it is described
Backlight module is connected, and the power supply module is connected with the control module, the backlight module and the display screen；
The power supply module includes current rectifying and wave filtering circuit, power factor correction circuit, resonant control circuit and auxiliary electricity
Source submodule, the current rectifying and wave filtering circuit is used to be connected with power supply, the current rectifying and wave filtering circuit, the power factor correction circuit
And the resonant control circuit is sequentially connected, the resonant control circuit is connected with the accessory power supply submodule, described humorous
The control circuit that shakes also is connected with the backlight module and the display screen respectively, the accessory power supply submodule and the display
Screen connection；
The current rectifying and wave filtering circuit is used to carry out rectifying and wave-filtering to the electric current of the power supply；
The power factor correction circuit is used to carry out Active PFC to the electric current after rectifying and wave-filtering；
The resonant control circuit is used to carrying out the electric current voltage stabilizing and exported to the backlight module and described aobvious
Display screen；
The control module generation light modulation parameter, and the light modulation parameter is sent to the PWM drive modules；
The PWM drive modules are used for according to the parameter that dims to the backlight module output drive signal；
The backlight module is used to be worked according to the drive signal；
The accessory power supply submodule is used to power to the display screen after resonant control circuit power-off.
Further, the power supply module also includes detection sub-module, and the detection sub-module controls electricity with the resonance
Road is connected, for detecting whether the resonant control circuit is powered, when the resonant control circuit is not powered on, and output starts letter
Number；
The accessory power supply submodule is used to be powered to the display screen according to the enabling signal.
Further, the detection sub-module and the accessory power supply submodule are connected with the control module respectively,
The detection sub-module is used for when the resonant control circuit is not powered on, and enabling signal is exported to the control module, described
Control module is used for after the enabling signal is received, and controls the accessory power supply submodule to be powered to the display screen.
Further, the backlight module includes light emitting diode.
Further, the backlight module includes some light emitting diodes.
Above-mentioned low-power consumption display device, when display screen is standby, when the control circuit that shakes is unloaded, passes through accessory power supply submodule
Block is powered to display screen, is effectively reduced the electric energy for control circuit no-load consumption of shaking, is effectively reduced the energy consumption of display screen, be easy to
The long-time of display screen is used.
Brief description of the drawings
Figure 1A is the module frame chart of the low-power consumption display device of an embodiment；
Figure 1B is the module frame chart of the low-power consumption display device of another embodiment；
Fig. 1 C are the module frame chart of the low-power consumption display device of another embodiment；
Fig. 2 is the cross-sectional view of the low-power consumption display device of an embodiment；
Fig. 3 is a direction plane structural representation of the low-power consumption display device of an embodiment；
Fig. 4 is the part section structural representation of the low-power consumption display device of another embodiment；
Fig. 5 is the cross-sectional view of the low-power consumption display device of an embodiment；
Fig. 6 is the housing backboard of an embodiment and a direction structure schematic diagram of heat transfer piece；
Fig. 7 is the display screen of an embodiment and the part section structural representation of backlight module；
Fig. 8 is the planar structure schematic diagram of the display panel of an embodiment.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give presently preferred embodiments of the present invention.But, the present invention can be realized in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more thorough
Comprehensively.
As shown in Figure 1A, a kind of low-power consumption display device 10 of an embodiment, including：Control module 110, PWM (Pulse
Width Modulation, pulse width modulation) drive module, backlight module 130, power supply module 140 and display screen 150, institute
State control module 110 to be connected with the PWM drive modules 120 and the display screen 150 respectively, the PWM drive modules 120
It is connected with the backlight module 130, the power supply module 140 and the control module 110, the backlight module 130 and institute
Display screen 150 is stated to connect；The power supply module 140 includes current rectifying and wave filtering circuit 141, power factor correction circuit 142, resonance control
Circuit 143 and accessory power supply submodule 144 processed, the current rectifying and wave filtering circuit 141 are used to be connected with power supply, the rectifying and wave-filtering
Circuit 141, the power factor correction circuit 142 and the resonant control circuit 143 are sequentially connected, the resonance control electricity
Road 143 is connected with the accessory power supply submodule 144, the resonant control circuit 143 also respectively with the backlight module 130 with
And the display screen 150 is connected, the accessory power supply submodule 144 is connected with the display screen 150；The current rectifying and wave filtering circuit
141 are used to carry out rectifying and wave-filtering to the electric current of the power supply；The power factor correction circuit 142 is used for passing through rectifying and wave-filtering
The electric current afterwards carries out Active PFC；The resonant control circuit 143 is used to carry out voltage stabilizing to the electric current and exported
To the backlight module 130 and the display screen 150；The generation of the control module 110 light modulation parameter, and the light modulation is joined
Number is sent to the PWM drive modules 120；The PWM drive modules 120 are used for according to the parameter that dims to the backlight mould
The output drive signal of block 130；The backlight module 130 is used to be worked according to the drive signal；The accessory power supply submodule
144 are used to power to the display screen 150 after the resonant control circuit 143 power-off.
Specifically, externally fed power supply outside the power supply being connected in the present embodiment with current rectifying and wave filtering circuit 141, outside power supply
The alternating current of power supply after the rectifying and wave-filtering of current rectifying and wave filtering circuit 141, output to power factor correction circuit 142, power because
Plain correcting circuit 142 exports voltage stabilization to resonant control circuit 143, and resonant control circuit 143 is to display screen 150 and carries on the back
Optical module 130 exports electric energy, is that display screen 150 and backlight module 130 are powered so that display screen 150 and backlight module 130
Work.
Specifically, in the operating condition, display screen 150 receives the electric current exported by rectifying and wave-filtering and voltage stabilizing, carries out
It has been shown that, display image picture, and backlight module 130 works, and is that display screen 150 provides backlight.When in holding state, resonance
Circuit 143 is controlled no longer to export electric energy to backlight module 130 and display screen 150, resonant control circuit 143 is in unloaded shape
State, is now powered by accessory power supply submodule 144 to display screen 150, it is to avoid the no-load consumption electric energy of resonant control circuit 143, is had
Effect reduces the electric energy for control circuit no-load consumption of shaking, and effectively reduces the energy consumption of display screen 150, is easy to the length of display screen 150
Time uses.
For example, the accessory power supply submodule 144 is battery back-up module, and for example, for example, the accessory power supply submodule 144
For being connected with outside power supply, the accessory power supply submodule 144 is used to provide dc source for display screen 150, in display screen
150 provide electric energy when standby for display screen 150.
In order to realize the detection of the Light Condition to resonant control circuit 143, in one embodiment, as shown in Figure 1B,
The power supply module 140 also includes detection sub-module 145, and the detection sub-module 145 connects with the resonant control circuit 143
Connect, for detecting whether the resonant control circuit 143 is powered, when the resonant control circuit 143 is not powered on, output starts
Signal；The accessory power supply submodule 144 is used to be powered to the display screen 150 according to the enabling signal.For example, the detection
Submodule 145 is used for the load for detecting resonant control circuit 143, it should be understood that the load progress detection to circuit belongs to
The circuit structure of the detection sub-module 145 does not make burdensome elaboration in prior art, the present embodiment, by 145 pairs of detection sub-module
The loading condition of resonant control circuit 143 is detected, and carries out the power supply control to display screen 150, energy according to testing result
It is enough that display screen 150 is powered in time, further reduce the electric energy for control circuit no-load consumption of shaking.
Specifically, in one embodiment, the accessory power supply submodule 144 directly can connect with the detection sub-module 145
Connect, receive the enabling signal of detection sub-module 145, powered according to enabling signal to display screen 150, in further embodiment
In or be controlled come the conducting to accessory power supply submodule 144 by control module 110, for example, referring again to
Figure 1B, the detection sub-module 145 and the accessory power supply submodule 144 are connected with the control module 110 respectively, described
Detection sub-module 145 is used for when the resonant control circuit 143 is not powered on, and enabling signal is exported to the control module 110,
The control module 110 is used for after the enabling signal is received, and controls the accessory power supply submodule 144 to the display
Screen 150 is powered.In the present embodiment, the conducting of accessory power supply submodule 144 is controlled by control module 110 so that control
System is more accurate.
In order to realize the luminous of display screen 150, it is necessary to which backlight module 130, which is display screen 150, provides backlight, due to backlight mould
Block 130 is connected with display screen 150 with resonant control circuit 143, when resonant control circuit 143 is in Light Condition, is not only shown
Display screen 150 is in holding state, and backlight module 130 is also at the state of being stopped, that is, non-light emitting state.
In one embodiment, the backlight module 130 includes light emitting diode, for example, the backlight module 130 includes
Some light emitting diodes, for example, each diode rectangular array is distributed.For example, the PWM drive modules 120 are specifically for root
The drive signal of default dutycycle is exported to the backlight module 130 according to the light modulation parameter, the drive signal is used to drive
Each backlight module 130 works.Specifically, the PWM drive modules 120 are used for light emitting diode output pulse signal, should
The dutycycle of pulse signal is bigger, then its pulse signal has significant level accounting bigger so that light emitting diode is in a pulse
Fluorescent lifetime in cycle is longer, so so that the luminosity of light emitting diode is bigger, conversely, the dutycycle of pulse signal
Smaller, then the luminosity of light emitting diode is smaller.For example, the light modulation parameter and the dutycycle of pulse signal are into positive correlation, because
This, by the pulse signal of light modulation state modulator PWM drive modules 120, can control the luminosity of the light emitting diode, enter
And control the brightness of backlight module 130.
In order to obtain the light modulation parameter more matched with image, to cause backlight effect more preferably, for example, as shown in Figure 1 C,
Low-power consumption display device 10 also includes image module 160, and described image module 160 is used to obtain image, parses described image, obtain
Color range of the described image on multiple viewing areas is taken, the corresponding color range in each viewing area is sent to control module
110, the control module 110 is used to generate light modulation parameter corresponding with each viewing area according to the color range of each viewing area.Example
Such as, the corresponding color range of the light modulation parameter and the default dutycycle of the drive signal are inversely proportional, and specifically, color range value is bigger,
Then the brightness of pixel is bigger, and because in the present embodiment, color range is inversely proportional with default dutycycle, it is, a display of image
The color range value in region is bigger, then presets dutycycle smaller, then the brightness of corresponding backlight module 130 is smaller, and then to be somebody's turn to do
Brightness of the image in viewing area reduces, and the color range of a viewing area of image value is smaller, then default dutycycle is bigger, that
The brightness of corresponding backlight module 130 is bigger, and then causes brightness increase of the image in viewing area, so, color range
The backlight illumination of big viewing area reduces, and color guards against the backlight illumination increase of small viewing area, and then causes each viewing area
Brightness be equalized so that the Luminance Distribution of the display screen 150 is more uniformly distributed, so cause display screen 150 display effect
More preferably.
In the present embodiment, image module 160 is parsed according to the image to exporting to display screen 150, obtains display screen
The corresponding color range in each viewing area on 150, for example, the color range is color range value, the color range value is used to represent what display screen 150 was shown
Color, in other words, the color range value are used for the color for representing image, and the color range value is bigger, then its face shown on display screen 150
Color is deeper, then its " brightness " in visual effect is higher, therefore, in order that the brightness of image that shows of display screen 150 more
For equilibrium, in the present embodiment, light-adjusting module according to the color range of each viewing area of display screen 150 generation correspondence light modulation parameter, and
The light modulation parameter is exported to PWM drive modules 120, PWM drive modules 120 are according to the light modulation work of driving parameter backlight module 130
Make so that the backlight of display screen 150 can be adjusted according to the brightness in each region of image so that the brightness of display screen 150
Adjustment is more convenient, and image display effect more preferably, be prevented effectively from image local brightness excessive and influence user to watch.
In one embodiment, as shown in Figure 1 there is provided a kind of low-power consumption display device 10, including：Control module 110, figure
As module 160, power supply module 140 and display screen 150, the control module 110 respectively with described image module 160 and described
Display screen 150 is connected, and described image module 160 is connected with the display screen 150, the power supply module 140 and the control mould
Block 110, the backlight module 130 and the display screen 150 are connected, and the display screen 150 is provided with indicator lamp；The power supply
Module 140 includes current rectifying and wave filtering circuit 141, power factor correction circuit 142, resonant control circuit 143 and accessory power supply
Module 144, the current rectifying and wave filtering circuit 141 is used to be connected with power supply, the current rectifying and wave filtering circuit 141, the power factor (PF) school
Positive circuit 142 and the resonant control circuit 143 are sequentially connected, the resonant control circuit 143 and accessory power supply
Module 144 is connected, and the resonant control circuit 143 is also connected with the display screen 150, the accessory power supply submodule 144 with
The display screen 150 is connected；The current rectifying and wave filtering circuit 141 is used to carry out rectifying and wave-filtering to the electric current of the power supply；The work(
Rate factor correction circuit 142 is used to carry out Active PFC to the electric current after rectifying and wave-filtering；The resonance control
Circuit 143 is used to carry out voltage stabilizing to the electric current and exported to the display screen 150；The control module 110 is used to control institute
Image module 160 is stated to work；Described image module 160 is used to receive image information, parses described image information, generation image letter
Number, drive the display screen 150 to be shown according to described image signal；The display screen 150 is used to be believed according to described image
Number shown, be additionally operable to receive the current work of the resonant control circuit 143；The accessory power supply submodule 144 is used for
Powered after the resonant control circuit 143 power-off to the indicator lamp of the display screen 150；The indicator lamp is used in institute
Worked under the power supply for stating accessory power supply submodule 144.
Specifically, image is the image that display screen 150 is shown, the display image is the frame figure shown on display screen 150
Picture, or multiple image, the image each pixel cell luminescence display on display screen 150, pixel cell include red pixel list
Member, green pixel cell and blue pixel cells, each red pixel cell, green pixel cell and blue pixel cells group respectively
Into the different colours of image, so that the display image on display screen 150, the image information contains the letter of the pixel distribution of image
Breath, the parsing of image module 160 image information, obtains the display information of each pixel cell, generates picture signal, output to display
Screen 150, and then cause each pixel cell on display screen 150 to show corresponding color, and then image is shown.
In the present embodiment, when display screen 150 does not work, indicator lamp is used to indicate the state of display screen 150, i.e., in treating
Machine state, i.e., when display screen 150 works, indicator lamp extinguishes, and when display screen 150 is standby, indicator lamp is lighted, in display screen
150 it is standby when, when the control circuit that shakes is unloaded, display screen 150 is powered by accessory power supply submodule 144, display screen 150
Indicator lamp is lit, and the current state of display screen 150 is shown by indicator lamp, because the energy consumption that indicator lamp is consumed is smaller, a side
Face effectively reduce shake control circuit no-load consumption electric energy, effectively reduce the energy consumption of display, be easy to display it is long when
Between use, on the other hand then cause display screen 150 to accurately reflect holding state.
It should be understood that current rectifying and wave filtering circuit 141, power factor (PF) in the power supply module 140 in each embodiment
Correcting circuit 142, resonant control circuit 143, accessory power supply submodule 144 and detection sub-module 145 are prior art, respectively
Module or the realization principle of each circuit are prior art, the present invention is intended to provide the new connected mode of each module,
To solve the defect that the open circuit loss of resonant control circuit 143 is big, to reduce the energy consumption of low-power consumption display device.
It is noted that continuing to develop with display, display function is more and more, and the thickness of display is more next
It is more frivolous, cause display interior space to reduce, gap reduces between electronic component, the easy heap of heat between electronic component
Product, easily causes display overheat, influences the service life of display, in order to improve heat dispersion, service life is lifted, one
In individual embodiment, as shown in Figure 2 and Figure 4 there is provided a kind of low-power consumption display device 10, including：Shell 200 and any embodiment
Display screen 150, the display screen 150 has rectangular configuration, and the shell 200 is coated on the outside of the display screen 150；It is described
Shell 200 includes thermally conductive sheet 220 and shell body 210, and the shell body 210 includes housing backboard 211 and four housing side plates
212, the housing backboard 211 has rectangular configuration, and four housing side plates 212 are connected to the four of the housing backboard 211
Individual side, and head and the tail connection inner side forms accommodating cavity 201 to four housing side plates 212 successively, the display screen 150 is arranged at
In the accommodating cavity 201, the quantity of the thermally conductive sheet 220 is four, and four thermally conductive sheets 220 are attached at the display respectively
Four sides of screen 150, and the one side of four thermally conductive sheets 220 dorsad display screen 150 is connected to described in four respectively
The inner side of housing side plate 212.
Specifically, thermally conductive sheet 220 is connected to four sides of display screen 150, in such manner, it is possible to by the heat of display screen 150
Absorb, and distributed heat to outside by shell body 210, be different from and open up air vent on traditional housing, housing and dissipated
Shell body 210 in heat, the present embodiment need not open up air vent so that the structure of shell body 210 is more firm, further, since
The structure of shell body 210 is strengthened, and the thickness for also helping shell body 210 further reduces so that low-power consumption display device
10 integral thickness further reduces, and provides bigger effective area for display screen 150.
For example, the outer surface of shell body 210 is at least partly coated with metal foil layer, for example, the housing side plate 212 is outer
Side surface is at least partly coated with metal foil layer, for example, the metal foil layer is aluminium foil layer, for example, the metal foil layer is copper foil layer,
The metal foil layer has splendid heat conductivility, after the heat of display screen 150 is absorbed by thermally conductive sheet 220, is transferred to housing
Side plate 212, housing side plate 212 by metal foil layer by heat Quick diffusing into air so that in low-power consumption display device 10
The heat in portion obtains Quick diffusing.For example, the material of the shell body 210 is plastics, it should be understood that metal foil layer, which has, leads
Electrically, therefore, in order to avoid display screen 150 and the short circuit of the circuit structure of inside, the material of shell body 210 can have for plastics
Effect insulation, isolation display screen 150 and the metal foil layer so that metal foil layer only plays a part of heat radiator, it should be appreciated that
, in general, low-power consumption display device is internally provided with substrate, for carry inside circuit structure, its include compared with
Many electronic components, and substrate is normally in accommodating cavity close to the position of housing backboard, in order to avoid the heat of display screen
It is transferred to too much in the electronic component on substrate, the present embodiment, metal foil layer is arranged on housing side plate so that display screen
Heat is transmitted into housing side plate direction set, and the heat for being prevented effectively from display screen is transmitted to substrate too much, effective protective substrate.
In order to preferably set metal foil layer, for example, the outer surface depression of housing side plate sets fixing groove, squirrel metal
Layers of foil is embedded in the fixing groove, the fixation by the fixing groove to metal foil layer so that metal foil layer is more firmly set
Put in housing side plate, and the distance of metal foil layer and display screen is further reduced, be conducive to further improving heat transfer efficiency.
In a further embodiment, as shown in figure 3, the housing side plate 212 includes the heat transfer being sequentially connected from the inside to the outside
Layer 212a, heat-conducting layer 212b and protective layer 212c, the heat transfer layer 212a material are silica gel, and heat-conducting layer 212b material is gold
Category, protective layer 212c material is plastics, for example, the silica gel that the housing side plate 212 includes being sequentially connected outside interior is passed
Thermosphere 212a, metal heat-conducting layer 212b and plastic protective layer 212c, for example, silica gel heat transfer layer 212a and plastic protective layer 212c bags
Metal heat-conducting layer 212b outside is overlying on, so, insulating properties can be provided for metal heat-conducting layer 212b, and silica gel heat transfer layer
On the one hand 212a has insulating properties, on the other hand then can efficiently transmit the heat of thermally conductive sheet 220 so that thermally conductive sheet 220
Heat is transferred to metal heat-conducting layer 212b by silica gel heat transfer layer 212a, and passes through metal heat-conducting layer 212b and plastic protective layer
212c is distributed to outside successively.
In order that metal heat-conducting layer 212b heat Quick diffusing is obtained, for example, metal heat-conducting layer 212b thickness is more than modeling
Expect protective layer 212c thickness, specifically, metal heat-conducting layer 212b thickness is larger, with being conducive to heat Quick diffusing, and by
Poor in the thermal conductivity of plastics, plastic protective layer 212c thickness is smaller, is conducive to metal heat-conducting layer 212b heat quickly to dissipate
Outside is sent to, for example, the ratio between metal heat-conducting layer 212b thickness and plastic protective layer 212c thickness is 1：(0.2~0.5), example
Such as, the ratio between metal heat-conducting layer 212b thickness and plastic protective layer 212c thickness is 1：0.35, it should be understood that metal is led
Thermosphere 212b thickness should not be too big, and too big one side make it that the overall weight of low-power consumption display device 10 is larger, is unfavorable for moving,
And it is unfavorable for the suspension of low-power consumption display device 10, and metal heat-conducting layer 212b thickness is smaller, then causes heat dispersion reduction,
Therefore, in the present embodiment, the ratio between category heat-conducting layer 212b thickness and plastic protective layer 212c thickness are 1：0.35, on the one hand have
The overall weight of effect control low-power consumption display device 10, on the other hand so that metal heat-conducting layer 212b has good radiating effect
Really, and to the intensity of housing side plate 212 it is improved.
In the present embodiment, the thermally conductive sheet 220 that shell 200 is set can quickly absorb the heat of display screen 150, and by heat
Conduction to shell body 210, heat is distributed to outside by shell body 210, it is to avoid the heat build-up of display screen 150 and cause temperature
Height is spent, radiating efficiency, the service life of extension low-power consumption display device 10 is effectively improved.
It should be understood that the thermally conductive sheet 220 needs the heat of quick guiding display screen 150, it is to avoid the heat of display screen 150
Measure and transmitted to the direction of substrate 300, therefore, thermally conductive sheet 220 needs good heat dispersion, for example, the thermally conductive sheet 220 closes for metal
Golden thermally conductive sheet 220, the thermally conductive sheet 220 that metal alloy is made has preferably heat conductivility, can quickly absorb display screen 150
Most of heat, and distributed by housing side plate 212 to outside.
In order to improve the heat conductivility of thermally conductive sheet 220, for example, thermally conductive sheet 220 includes each component of following mass parts：
65 parts~70 parts of copper, 5 parts~8 parts of aluminium, 3 parts~4.5 parts of silver, 1.6 parts~2.8 parts of titanium, 0.5 part~0.8 part of tungsten, lead
0.3 part~0.5 part, 0.2 part~0.4 part of manganese, 0.7 part~0.8 part of magnesium, 0.6 part~0.8 part of iron, 0.5 part~2 parts of molybdenum and graphite
0.5 part~1 part of alkene.
In said components, copper and aluminium have a good heat conductivility, and with it is cheap the characteristics of, constitute thermally conductive sheet
220 group wants composition so that thermally conductive sheet 220 can have good heat conductivility, and the silver and titanium in thermally conductive sheet 220 have
There is splendid heat conductivility, coordinate copper and aluminium, can further lift the heat conductivility of thermally conductive sheet 220, and contain in thermally conductive sheet 220
Some iron, tungsten, lead, manganese and magnesium then effectively increase the mechanical performance and anti-fatigue performance of thermally conductive sheet 220 so that housing side plate
212 firmly can be connected by thermally conductive sheet 220 with display screen 150, and the graphene contained in thermally conductive sheet 220 then being capable of heat conduction
Piece 220 has certain pliability, and the heat on thermally conductive sheet 220 is uniformly distributed, it is to avoid heat build-up.
In order to further for the heat conductivility for improving thermally conductive sheet 220, for example, thermally conductive sheet 220 includes following mass parts
Each component：
68 parts of copper, 6 parts of aluminium, silver 3.3 parts, 2 parts of titanium, 0.6 part of tungsten, 0.4 part of lead, 0.3 part of manganese, 0.75 part of magnesium, 0.7 part of iron,
0.6 part of 0.8 part of molybdenum and graphene.
Thermally conductive sheet 220 containing 2 parts of 68 parts of copper, 6 parts of aluminium, 3.3 parts of silver and titanium has more preferably heat conductivility, and price is not
As for too high, and 0.7 part of 0.6 part of tungsten, 0.4 part of lead, 0.3 part of manganese, 0.75 part of magnesium and iron then further increase thermally conductive sheet 220
Mechanical performance and anti-fatigue performance so that thermally conductive sheet 220 remains the connection with display screen 150, effectively transmission display screen 150
Heat, 0.6 part of graphene enables to the pliability of thermally conductive sheet 220 more preferably, further such that the heat energy on thermally conductive sheet 220
Enough it is uniformly distributed, it is to avoid heat build-up.
It should be understood that the thickness of thermally conductive sheet 220 is unsuitable excessive, too big then influence is the effective area of display screen 150,
And the thickness of thermally conductive sheet 220 is too small then make it that heat-conducting effect is not good, in order that thermally conductive sheet 220 has preferably heat conductivility,
And cause display screen 150 visual effect more preferably, for example, the thickness of the thermally conductive sheet 220 be 1mm~2.5mm, for example, described
The thickness of thermally conductive sheet 220 is 1.2mm~2mm, for example, the thickness of the thermally conductive sheet 220 is 1.5mm.So, in the present embodiment
The thickness of thermally conductive sheet 220 is 1.5mm, on the one hand with preferably heat conductivility, can quickly guide the heat of display screen 150, separately
On the one hand then it is prevented effectively from and the effective area of display screen 150 is impacted so that the visual effect of display screen 150 is more preferably.
In order to avoid thermally conductive sheet 220 is connected with the electronic component inside low-power consumption display device 10 and cause short circuit, example
Such as, as shown in figure 4, each thermally conductive sheet 220 is mutually isolated, set for example, each thermally conductive sheet 220 is spaced, for example, respectively
The thermally conductive sheet 220 mutually head and the tail are arranged at intervals, for example, being provided with heat conductive isolation sheet between thermally conductive sheet 220 described in each two
230.For example, being connected between thermally conductive sheet 220 described in each two by the heat conductive isolation sheet 230, for example, heat conductive isolation sheet 230
For silica gel piece, for example, the end of each housing side plate 212 is provided with heat conductive isolation sheet 230, it should be understood that due to display screen
150 be rectangle, therefore, and the end or two ends of each housing side plate 212 then can be considered the diagonal of display screen 150, each thermally conductive sheet 220
Connected in the diagonal angle of display screen 150 by heat conductive isolation sheet 230, then each thermally conductive sheet 220 is not connected to each other, and then
So that being only one of thermally conductive sheet 220 and an electronic component false touch, the mutually interconnection between thermally conductive sheet 220 can also be avoided
It is short-circuit caused by connecing.
In order to avoid short circuit between display screen 150 and thermally conductive sheet 220, for example, the side of display screen 150 is provided with insulating barrier,
For example, the insulating barrier is layer of silica gel, the layer of silica gel can be effectively isolated display screen 150 and thermally conductive sheet 220, it is to avoid between the two
Conduction, is prevented effectively from short circuit caused by thermally conductive sheet 220, in addition, layer of silica gel effectively can conduct to heat so that display screen
150 heat can fast speed conduct to thermally conductive sheet 220.
In order that display screen 150 display effect more preferably, for example, the thermally conductive sheet 220 is provided with light-absorption layer, for example, should
Light-absorption layer is black light-absorption layer, for example, the light-absorption layer is arranged at the one side that thermally conductive sheet 220 is connected to display screen 150, is worth mentioning
If thermally conductive sheet 220 is not provided with light-absorption layer, thermally conductive sheet 220 is easily reflective so that the edge of display screen 150 produces floodlight
Phenomenon, influences the display effect of display screen 150, and in the present embodiment, because thermally conductive sheet 220 is provided with light-absorption layer, effectively to aobvious
The light at the edge of display screen 150 is absorbed, it is to avoid reflective, is prevented effectively from floodlight phenomenon so that the display effect of display screen 150 is more
It is good.
Distributed in order to which the heat to the electronic component inside low-power consumption display device 10 is guided so that low-power consumption shows
The better heat-radiation effect of showing device 10, in one embodiment, referring to Fig. 5, there is provided a kind of low-power consumption display device 10, bag
Include：The display screen 150 of substrate 300, shell 200 and any of the above-described embodiment, 150 points of the substrate 300 and the display screen
Not Ju You rectangular configuration, the substrate 300 and the display screen 150 may be contained within the shell 200；The shell 200
Including heat transfer piece 400 and shell body 210, the shell body 210 includes housing backboard 211 and four housing side plates 212, described
Housing backboard 211 has rectangular configuration, and four housing side plates 212 are connected to four sides of the housing backboard 211, and
Head and the tail connection inner side forms accommodating cavity 201, the substrate 300 and the display screen 150 to four housing side plates 212 successively
It may be contained within the accommodating cavity 201, the substrate 300 is arranged at the accommodating cavity 201 close to the one of the housing backboard 211
End, the display screen 150 is arranged at the one end of the accommodating cavity 201 away from the housing backboard 211；The heat transfer piece 400 is set
Be placed between the housing backboard 211 and the substrate 300, and the heat transfer piece 400 respectively with the housing backboard 211 with
And the substrate 300 is connected, the housing backboard 211 offers bullport 202, and described at least part of heat transfer piece 400 is arranged in
The bullport 202, and at least part of the heat transfer piece 400 exposes to the accommodating cavity 201.
It should connect, accommodating cavity 201 can be considered the bottom of accommodating cavity 201 close to one end of the housing backboard 211,
The one end of accommodating cavity 201 away from the housing backboard 211 is then equivalent to the opening of accommodating cavity 201, and so, display screen 150 is located at
One end of opening so that display screen 150 is exposed, is easy to the viewing of display screen 150, and substrate 300 is then located at bottom, to display screen
150 are powered and drive.Specifically, the substrate 300 is provided with electronic component, and the substrate 300 is used to drive display screen 150
Luminous work, for example, substrate 300 is electrically connected with display screen 150, for example, drive circuit is provided with substrate 300, for example, the drive
Dynamic circuit includes control module, PWM drive modules, image module and power supply module, for example, low-power consumption display device 10 also includes
Backlight circuit plate, for example, being provided with backlight module on the backlight circuit plate, backlight circuit plate is electrically connected with substrate 300.The substrate
There is various modules and electronic component on 300, after energization work, substantial amounts of heat will be produced, heat is inhaled by heat transfer piece 400
Receive, and distributed by support frame 500 to outside.
For example, heat transfer piece 400 is fixedly connected with housing backboard 211, for example, heat transfer piece 400 be used for through bullport 202 with
Outside support frame 500 is connected, and the support frame 500 is used to hang low-power consumption display device 10 so that low-power consumption display device 10
Can wall built-up use.So, the heat transfer piece 400 is applied not only to conduct heat, is additionally operable to connection Ei support frames 500 so that low work(
Consumption display device 10 can realize the wall built-up of low-power consumption display device 10 by support frame 500.
In the present embodiment, heat transfer piece 400 is possible to the heat of absorptive substrate 300, and by the support frame of heat conductive outer
500, heat is distributed to outside by support frame 500, it is to avoid heat build-up inside low-power consumption display device 10 and cause temperature
Height is spent, radiating efficiency, the service life of extension low-power consumption display device 10 is effectively improved.
In order to realize the wall built-up of low-power consumption display device 10, for example, as shown in figure 5, low-power consumption display device 10 also includes
Support frame 500, the heat transfer piece 400 is connected with support frame as described above 500.For example, being made up to heat transfer piece 400 of metal material, example
Such as, the support frame 500 is made up of metal material, for example, heat transfer piece 400 is fixedly connected with support frame 500 by screw, for example,
Heat transfer piece 400 is welded with support frame 500, so, on the one hand realizes being fixedly connected for heat transfer piece 400 and support frame 500, is conducted heat
Part 400 realizes the support to housing backboard 211 so that support frame 500 is suspended on by being fixedly connected with housing backboard 211
On wall, the wall built-up of low-power consumption display device 10 is realized, on the other hand, heat transfer piece 400 absorbs the heat of substrate 300, and
Support frame 500 is transferred heat to, is distributed by support frame 500 to outside, dissipating for low-power consumption display device 10 is effectively increased
The thermal efficiency.
In order to preferably fix the heat transfer piece 400, for example, incorporated by reference to Fig. 5 and Fig. 6, the housing backboard 211 is provided with card
Button block 215, the heat transfer piece 400 is at least partially arranged in the buckle block 215, for example, the buckle block 215 is provided with card
Catching groove 216, the heat transfer piece 400 is inserted in the buckle slot 216, so, will be passed by the buckle slot 216 of buckle block 215
Warmware 400 is fixed so that heat transfer piece 400 firmly can be connected with housing backboard 211, in the wall built-up of low-power consumption display device 10
When, housing backboard 211 is supported by the heat transfer piece 400, and then entirety is hung.
In order to realize the support to housing backboard 211, and realize effective, for example, incorporated by reference to Fig. 5 and Fig. 6, the biography
Warmware 400 includes heat transfer part 410 and connecting portion 420, and heat transfer part 410 has rectangular configuration, the heat transfer part 410 and the substrate
300 connections, the connecting portion 420 is arranged in the bullport 202, and at least partly exposes to the accommodating cavity 201, for example,
The quantity of the buckle block 215 is four, for example, four buckle blocks 215 are respectively arranged at four heat transfer parts 410
Four diagonal angles, for example, four buckle slots 216 open up the inner side with four buckle blocks 215, heat transfer part 410 respectively
Four diagonal edges be arranged in respectively in four buckle slots 216, so, by four buckle blocks 215 by the heat transfer of rectangle
Four of portion 410 are diagonal fixed, and then heat transfer part 410 is fixed, and then realize heat transfer piece 400 and housing backboard
211 be fixedly connected, realizes the excellent support to housing backboard 211.
Cause short circuit in order to avoid conductive between substrate 300 and heat transfer piece 400, for example, substrate 300 and heat transfer piece 400
Abut, for example, substrate 300 is abutted with heat transfer part 410, for example, the one side that substrate 300 is connected to heat transfer part 410 is provided with insulation
Layer, for example, the insulating barrier is layer of silica gel, the layer of silica gel can be effectively isolated the heat transfer part 410 of substrate 300 and heat transfer piece 400, keep away
Exempt from conduction between the two, short circuit caused by heat transfer piece 400 is prevented effectively from, in addition, layer of silica gel can be passed effectively to heat
Lead so that the heat of substrate 300 can fast speed conduct to heat transfer part 410, and conducted by heat transfer part 410 to connecting portion 420,
And then conduct to outside support frame 500, heat is distributed into air by support frame 500.
In order that obtaining heat transfer piece 400 has good thermal conductivity, to improve radiating efficiency, and possesses stronger intensity, energy
Enough display devices of support low-power consumption well 10, for example, heat transfer piece 400 is made up of metal alloy, for example, heat transfer piece 400 includes
The each component of following mass parts：
70 parts~85 parts of copper, 5.5 parts~6.8 parts of iron, 1 part~1.5 parts of aluminium, 1.8 parts~2.8 parts of magnesium, titanium 1.2 parts~2.2
Part, 0.6 part~0.8 part of tungsten, 0.3 part~0.5 part of lead, 0.1 part~0.5 part of manganese, 0.3 part~1.5 parts of molybdenum and carbon 0.2 part~1.2
Part.
In said components, copper, iron and aluminium have a good heat conductivility, and with it is cheap the characteristics of, be heat transfer piece
400 group wants composition so that heat transfer piece 400 can have good heat conductivility, and titanium can further improve heat transfer piece 400
Heat conductivility so that the overall heat-conducting effect of heat transfer piece 400 more preferably, effectively improves radiating efficiency.Copper and iron cause heat transfer piece
400 have stronger intensity, and the carbon added in low-power consumption display device 10, heat transfer piece 400 can be supported to improve well
The hardness of heat transfer piece 400, and magnesium, tungsten, lead and the manganese contained in heat transfer piece 400, then improve heat transfer piece 400 mechanical performance and
Anti-fatigue performance so that heat transfer piece 400 is in long-time using without causing strain so that low-power consumption display device 10 is obtained very
Good support, and heat transfer piece 400 can long-time wall built-up without deformation.
In order to further improve the heat conductivility of heat transfer piece 400, and the further intensity and hardness of raising heat transfer piece 400,
For example, heat transfer piece 400 includes each component of following mass parts：
75 parts of copper, 7 parts of iron, 1.2 parts of aluminium, 2.2 parts of magnesium, 1.6 parts of titanium, 0.7 part of tungsten, 0.4 part of lead, 0.3 part of manganese, 0.6 part of molybdenum
With 0.8 part of carbon.
In said components, 1.2 parts of 75 parts of copper, 7 parts of iron and aluminium cause heat transfer piece 400 to have more preferably heat conductivility, and tool
The characteristics of having cheap, is that the group of heat transfer piece 400 wants composition so that heat transfer piece 400 can have good heat conductivility, and
1.6 parts of titanium can further improve the heat conductivility of heat transfer piece 400 so that the overall heat-conducting effect of heat transfer piece 400 more preferably, effectively
Improve radiating efficiency.Further, 7 parts of 75 parts of copper and iron cause heat transfer piece 400 to have stronger intensity, can support well
0.8 part of the carbon added in low-power consumption display device 10, heat transfer piece 400 can improve the hardness of heat transfer piece 400, and heat transfer piece 400
In 0.4 part of 0.7 part of 2.2 parts of magnesium, tungsten, lead containing and 0.3 part of manganese then further increase the mechanical performance of heat transfer piece 400 and anti-
Fatigue behaviour so that heat transfer piece 400 is in long-time using without causing strain so that low-power consumption display device 10 is obtained very well
Support, and heat transfer piece 400 can long-time wall built-up without deformation.
It should be understood that a variety of various buttons are provided with traditional display or television set, such as button, in order to
So that the entirety of display is more aesthetically pleasing, these buttons are generally located on back or side (the i.e. shell of the shell 200 of display
The outer surface of side plate 212) so that button is hidden, and this press-key structure has following defect, on the one hand, button is hidden
After be difficult to be found by user, cause inconvenient for use, on the other hand so that the structure of shell 200 is complex, it is necessary to additionally set
Some moulds are put to manufacture the button on shell 200 and shell 200.
In order to solve the above problems so that shell globality is higher, and low-power consumption display device is easily manipulated, one
In individual embodiment, as shown in fig. 7, low-power consumption display device 10 includes the backlight module 130 and display screen of any of the above-described embodiment
150, backlight module 130 is connected with display screen 150, for example, the display screen 150 includes display panel 151 and fingerprint identification module
152, fingerprint identification module 152 is arranged between display panel 151 and backlight module 130, and the display panel 151 includes some pictures
Plain unit 153, each pixel cell 153 is provided with transparent area 154, and at least part transparent area 154 is aligned in the fingerprint identification module
152, for example, the fingerprint identification module is fingerprint optical detection unit, the fingerprint optical detection unit is used to connect by transparent area
Receive light and then detect fingerprint.Specifically, the display panel is located at outside, and fingerprint optical detection unit is located at inner side, and this is saturating
Light region is the white space fallen in love in your plain unit, and the transparent area is used for printing opacity, and so, outside light passes through transparent area
Detected by fingerprint optical detection unit so that fingerprint optical detection unit can detect the finger of user through the transparent area
Line.
For example, the accessory power supply submodule is used for the fingerprint to the display screen after resonant control circuit power-off
Identification module is powered, for example, the fingerprint identification module is used for when detecting user fingerprints, sending unlatching to control module refers to
Order, the control module is used to receive after open command, controls the power supply module conducting, and the control module is used to refer to
When line identification module detects user fingerprints, the power supply module conducting is controlled, and control the backlight module, described image mould
Block and the display screen start.Specifically, after resonant control circuit is powered off, resonant control circuit is in zero load, display screen
Black state screen closed mode in other words is in holding state, i.e. display screen, now, accessory power supply submodule is to fingerprint
Identification module is powered so that fingerprint identification module is in running order, and is referred to when the finger touch display screen of user, and by this
Detected by line identification module, then control module control backlight module, described image module and the display screen start so that
Display screen is in dispaly state, and so, user can efficiently and easily open low-power consumption display device, without using traditional
It is touch-tone to switch the unlatching for being controlled low-power consumption display device so that the shell mechanism of low-power consumption display device is more simple
It is single, and cause without searching starting key in start so that low-power consumption display device is easy to use and controls.
In order that obtaining low-power consumption display device can open according to authority, it is to avoid children and the user of lack of competence open
Open, for example, for example, the fingerprint identification module is used to detect user fingerprints, generation user fingerprints information, and transmission to control mould
Block, the control module is used for the user fingerprints information for receiving fingerprint identification module, and user fingerprints information and preset fingerprint are believed
Breath is contrasted, when the user fingerprints information detected is with preset fingerprint information matches, control backlight module, described image mould
Block and the display screen start, and the preset fingerprint is the finger that the user with authority is set in advance in low-power consumption display device
Line information, by detecting whether user fingerprints match with preset fingerprint, whether detection user has the authority opened, so that
The unlatching of low-power consumption display device is more accurate, it is to avoid children's false touch and open, and the it is possible to prevente effectively from user of lack of competence
Open low-power consumption display device so that low-power consumption display device more maintains secrecy.
In order to further improve the operation ease of user, for example, referring to Fig. 8, the display panel 151 includes first and shown
Show region 151a and the second viewing area 151b, the first viewing area 151a and the second viewing area 151b have respectively
There is pixel cell, wherein, each pixel cell of the second viewing area 151b has transparent area, and fingerprint identification module respectively
Second viewing area 151b is aligned in, and the pixel cell in the second viewing area 151b is aobvious with transparent area, second respectively
Show that region 151b transparent area aligns with the fingerprint identification module, for example, the second viewing area 151b is located at display panel 151
Diagonal angle, for example, the second viewing area be located at display panel edge, so, the first viewing area 151a and second display
A part for display image is distinguished in region, and the picture that both show is the image of an entirety, and fingerprint identification module is set
In the edge or edge of display screen 150, be conducive to user to input open command to the display screen 150, further improve and use
The operation ease at family.
In order to further improve the privacy of low-power consumption display device so that low-power consumption display device is only for having authority
User manipulates, in one embodiment there is provided a kind of display system, and the display system includes remote control and any of the above-described embodiment
Low-power consumption display device, remote control include instruction input module, first communication module and fingerprint identification unit, the low-power consumption
Display device includes second communication module and fingerprint identification module, and the first communication module and the second communication module are wireless
Connection, for example, the first communication module and the second communication module are respectively that (Wireless Fidelity, are based on WIFI
The WLAN of IEEE 802.11b standards) module, for example, the first communication module is indigo plant with the second communication module
Tooth module, so, remote control and low-power consumption display device realize the communication connection of optional position and any direction indoors, this
Sample, remote control easily can send control instruction to low-power consumption display device, and the low-power consumption display device also includes above-mentioned
The control module of one embodiment, second communication module is connected with control module, so, and remote control is sent to low-power consumption display device
After control instruction, received by the control module of low-power consumption display device, control module controls other elements according to control instruction
Work.
For example, the fingerprint identification unit is used for the fingerprint for detecting remote control user, remote control finger print information is generated, and pass through first
Communication module sends the remote control finger print information to low-power consumption display device, and the instruction input module refers to for receiving user
Order, and sent the user instruction to low-power consumption display device by first communication module, for example, the instruction AM access module can
To be button or touch screen.
The control module is used to receive the remote control finger print information by the second communication module and/or user refers to
Order, and for remote control finger print information to be contrasted with preset fingerprint information, when the remote control finger print information detected and default finger
During line information matches, the user instruction is responded, otherwise, when the remote control finger print information detected is mismatched with preset fingerprint information
When, the refusal respond user instruction.So, each user by remote control to low-power consumption display device send user instruction when,
Remote control will gather the finger print information of remote control user, when low-power consumption display device often receives a user instruction, be required for
Differentiate the authority of remote control user by fingerprint recognition, when user has authority, the user instruction is responded, otherwise refused
Response so that the control of low-power consumption display device more maintains secrecy, and has prevented lack of competence user or children control remote control carelessly.
For example, the low-power consumption display device has security schema and common-mode, under the security schema, low-power consumption is shown
When device often receives a user instruction, it is required for differentiating by fingerprint recognition the authority of remote control user, and then decides whether
The control instruction of remote control is responded, now, user is when inputting user instruction, it is necessary to finger print information be inputted simultaneously, for example, input
Module is touch screen, and when fingerprint identification unit is located at touch screen bottom, then user can input while input instruction and refer to
Line information；Under common-mode, low-power consumption display device then it is corresponding all come from control instructions of remote control, user only needs defeated
Enter control instruction, without input finger print information so that display system is using more flexible.
It should be noted that in said system embodiment, included modules are simply drawn according to function logic
Point, but above-mentioned division is not limited to, as long as corresponding function can be realized；In addition, each functional unit is specific
Title is also only to facilitate mutually distinguish, the protection domain being not intended to limit the invention.
In addition, one of ordinary skill in the art will appreciate that realizing all or part of step in the various embodiments described above method
It can be by program to instruct the hardware of correlation to complete, corresponding program can be stored in read/write memory medium.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not moved
Dynamic contradiction, is all considered to be the scope of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (5)
1. a kind of low-power consumption display device, it is characterised in that including：Control module, PWM drive modules, backlight module, power supply mould
Block and display screen, the control module are connected with the PWM drive modules and the display screen respectively, and the PWM drives mould
Block is connected with the backlight module, and the power supply module connects with the control module, the backlight module and the display screen
Connect；
The power supply module includes current rectifying and wave filtering circuit, power factor correction circuit, resonant control circuit and accessory power supply
Module, the current rectifying and wave filtering circuit be used for be connected with power supply, the current rectifying and wave filtering circuit, the power factor correction circuit and
The resonant control circuit is sequentially connected, and the resonant control circuit is connected with the accessory power supply submodule, the resonance control
Circuit processed is also connected with the backlight module and the display screen respectively, and the accessory power supply submodule connects with the display screen
Connect；
The current rectifying and wave filtering circuit is used to carry out rectifying and wave-filtering to the electric current of the power supply；
The power factor correction circuit is used to carry out Active PFC to the electric current after rectifying and wave-filtering；
The resonant control circuit is used to carry out voltage stabilizing to the electric current and exported to the backlight module and the display screen；
The control module generation light modulation parameter, and the light modulation parameter is sent to the PWM drive modules；
The PWM drive modules are used for according to the parameter that dims to the backlight module output drive signal；
The backlight module is used to be worked according to the drive signal；
The accessory power supply submodule is used to power to the display screen after resonant control circuit power-off.
2. low-power consumption display device according to claim 1, it is characterised in that the power supply module also includes detection submodule
Block, the detection sub-module is connected with the resonant control circuit, for detecting whether the resonant control circuit is powered, and works as institute
When stating resonant control circuit and being not powered on, enabling signal is exported；
The accessory power supply submodule is used to be powered to the display screen according to the enabling signal.
3. low-power consumption display device according to claim 2, it is characterised in that the detection sub-module and the auxiliary
Power supply submodule is connected with the control module respectively, and the detection sub-module is used to be not powered in the resonant control circuit
When, enabling signal is exported to the control module, the control module is used for after the enabling signal is received, and control is described
Accessory power supply submodule is powered to the display screen.
4. low-power consumption display device according to claim 1, it is characterised in that the backlight module includes light-emitting diodes
Pipe.
5. low-power consumption display device according to claim 4, it is characterised in that the backlight module includes some luminous two
Pole pipe.
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| CN112785985A (en) * | 2019-11-04 | 2021-05-11 | 海信视像科技股份有限公司 | Display device |
| CN114024455A (en) * | 2021-11-10 | 2022-02-08 | 深圳康佳电子科技有限公司 | Television and power circuit and power output control method thereof |
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| CN201639486U (en) * | 2010-02-01 | 2010-11-17 | 乌鲁木齐希望电子有限公司 | Power supply energy-saving device |
| CN201846423U (en) * | 2010-10-26 | 2011-05-25 | 康佳集团股份有限公司 | LED backlight television and power source used for same |
| CN101969727A (en) * | 2010-10-30 | 2011-02-09 | 陈金明 | High power LED driving power supply |
| CN202127528U (en) * | 2011-05-23 | 2012-01-25 | 陈华海 | Novel flat-panel LED (light-emitting diode) switch power supply |
| CN103096593B (en) * | 2012-11-19 | 2017-05-03 | 青岛海信电器股份有限公司 | Light-emitting diode (LED) backlight driving circuit and liquid crystal television |
| CN203039971U (en) * | 2012-12-26 | 2013-07-03 | 王向杰 | Novel lamp drive circuit |
| CN105376508A (en) * | 2015-11-18 | 2016-03-02 | 深圳创维－Rgb电子有限公司 | High power supply for display device, and display device |
| CN106548755A (en) * | 2016-12-07 | 2017-03-29 | 惠州三华工业有限公司 | Brightness adjust automatically display device |
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| CN112785985A (en) * | 2019-11-04 | 2021-05-11 | 海信视像科技股份有限公司 | Display device |
| CN114024455A (en) * | 2021-11-10 | 2022-02-08 | 深圳康佳电子科技有限公司 | Television and power circuit and power output control method thereof |
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