CN102306045B - Display device and operation method thereof - Google Patents
Display device and operation method thereof Download PDFInfo
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- CN102306045B CN102306045B CN201110183160.0A CN201110183160A CN102306045B CN 102306045 B CN102306045 B CN 102306045B CN 201110183160 A CN201110183160 A CN 201110183160A CN 102306045 B CN102306045 B CN 102306045B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 230000003287 optical effect Effects 0.000 claims description 44
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- 238000001514 detection method Methods 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 abstract description 5
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The invention discloses a display device and an operation method thereof. The display device comprises a display module, a solar cell, a voltage transmission unit, a controller and a voltage selection unit. The solar cell outputs electric energy. The voltage transmission unit is coupled with the solar cell to receive electric energy and output light energy conversion voltage at the maximum power point. The controller is coupled with the solar cell to detect the electric energy and controls the voltage transmission unit to output the light energy conversion voltage when the electric energy reaches a maximum power point. The voltage selection unit is coupled to the voltage transmission unit and receives an external voltage. When the voltage selection unit receives the light energy conversion voltage and the external voltage, the voltage selection unit outputs the larger one of the light energy conversion voltage and the external voltage to the display module.
Description
Technical field
The present invention relates to a kind of display device and method of operating thereof, and relate to a kind of display device and the method for operating thereof that are configured with solar cell especially.
Background technology
Along with environmental consciousness comes back, the concept of carbon reduction paid attention to by everybody gradually, and the development and utilization of green energy resource (i.e. the renewable sources of energy) becomes the emphasis that development is actively dropped in countries in the world.In recent years, because green energy resource development is more tending towards ripe, therefore the application of green energy resource can be more frequent, and also attempt combining with green energy resource in many aspects (as building and consumption electronic product).In green energy resource, because sunshine is available anywhere, and pollution can be produced to the earth unlike other energy (as: fossil energy, nuclear energy), therefore sun power and the solar cell that sunshine can be converted to electric energy are star's industries good at present.
Be combined with consumption electronic product with solar cell, due to sun power and consumption electronic product for independent individual designs, to such an extent as to consumption electronic product must headspace to hold and solar cell and circuit thereof.And the circuit of the circuit of consumption electronic product and solar cell alone design overall circuit can be caused complicated, to such an extent as on circuit system is whole not easily, and the space shared by circuit cannot be saved.
Summary of the invention
The invention provides a kind of display device, it integrates the circuit of display device and solar cell, to unite whole degree to promote display device and solar cell circuit.
The present invention also provides a kind of method of operating of display device, its electric power provided using solar cell as main power source, to reduce the demand to external power.
The present invention proposes a kind of display device, comprises display module, solar cell, voltage transmission unit, controller and voltage selection unit.Solar cell is in order to receive luminous energy and to convert luminous energy to electric energy.Voltage transmission unit couples solar cell to receive electric energy and to export optical transition voltage at maximum power point.Controller couples solar cell and voltage transmission unit, to detect electric energy, and when electric energy reaches maximum power point, controls voltage transmission unit light energy output changing voltage.Voltage selection unit couples voltage transmission unit and external voltage.When voltage selection unit receives luminous energy changing voltage and external voltage, in voltage selection unit light energy output changing voltage and external voltage, the greater is to display module.
In one embodiment of this invention, voltage selection unit comprises the first diode and the second diode.The anode of the first diode couples voltage transmission unit, and the negative electrode of the first diode couples display module.The anode of the second diode receives external voltage, and the negative electrode of the second diode couples display module.
In one embodiment of this invention, display device more comprises the first charger.When optical transition voltage is held in default operating voltage, controller controls the first charger and charges to the first rechargeable battery.
In one embodiment of this invention, display device is applicable to computer, and wherein the first rechargeable battery is in order to provide system voltage to the main frame of computer.
In one embodiment of this invention, display device more comprises the second rechargeable battery, switch element and the second charger.Second rechargeable battery couples controller.Switch element be coupled to controller, voltage transmission unit, between the second rechargeable battery and voltage selection unit, to receive the cell voltage that optical transition voltage and the second rechargeable battery provide.Second charger couples voltage transmission unit, controller and the second rechargeable battery, utilizes optical transition voltage to charge to the second rechargeable battery to be controlled by controller.When the second rechargeable battery is unsaturated state, controller gauge tap unit is nonconducting state, and controls the second charger and charge to the second rechargeable battery; When the second rechargeable battery is state of saturation, controller gauge tap unit is conducting state, with light energy output changing voltage, cell voltage to voltage selection unit.When voltage selection unit receives luminous energy changing voltage, cell voltage and external voltage, in voltage selection unit light energy output changing voltage, cell voltage and external voltage, the maximum is as operating voltage.
In one embodiment of this invention, voltage selection unit comprises the 3rd diode, the 4th diode and the 5th diode.The anode of the 3rd diode receives optical transition voltage, and the negative electrode of the 3rd diode couples display module.The anode of the 4th diode receives cell voltage, and the negative electrode of the 4th diode couples display module.The anode of the 5th diode receives external voltage, and the negative electrode of the 5th diode couples display module.
In one embodiment of this invention, switch element comprises the first switch and second switch.The first end of the first switch couples voltage transmission unit to receive optical transition voltage, and the second end of the first switch couples voltage selection unit, and the control end of the first switch couples controller.The first end of second switch couples the second rechargeable battery to receive cell voltage, and the second end of second switch couples voltage selection unit, and the control end of second switch couples controller.
In one embodiment of this invention, display device more comprises Voltagre regulator, is coupled between voltage transmission unit and voltage selection unit, is converted to one presets working power voltage to make reception luminous energy changing voltage.
In one embodiment of this invention, display device is applicable to computer, and the main frame that wherein external voltage is computer is provided.
In one embodiment of this invention, controller shows according to image data control display module.
In one embodiment of this invention, display module comprises display panel and driving circuit.Driving circuit couples display panel and controller, and receives operating voltage, and driving circuit is controlled by controller and drives display panel.
The present invention also proposes a kind of method of operating of display device, and display device comprises display module and solar cell.The method of operating of display device comprises: receive the luminous energy changing voltage that solar cell provides; Receive external voltage; When meeting condition of power supply, the maximum in luminous energy changing voltage and external voltage is provided to display module as operating voltage; When not meeting condition of power supply, using external voltage as operating voltage.
In one embodiment of this invention, condition of power supply is that luminous energy conversion reaches default operating voltage.
In one embodiment of this invention, the method for operating of display device, more comprises when optical transition voltage is held in default operating voltage, utilizes optical transition voltage to charge to the first rechargeable battery.
In one embodiment of this invention, display device more comprises the second rechargeable battery, and condition of power supply is the second rechargeable battery is state of saturation.The method of operating of display device more comprises: when not meeting condition of power supply, utilizes optical transition voltage to charge to the second rechargeable battery, and using external voltage as operating voltage; When meeting condition of power supply and optical transition voltage reaches default operating voltage, in the cell voltage provide luminous energy changing voltage, the second rechargeable battery and external voltage, the maximum is as operating voltage; When meeting condition of power supply and optical transition voltage is not enough to reach default operating voltage, using the maximum in cell voltage and external voltage as operating voltage.
Based on above-mentioned, the display device of the embodiment of the present invention and method of operating thereof, reach default operating voltage at luminous energy changing voltage, is provided to voltage selection unit, so that the maximum in luminous energy changing voltage and external voltage is provided to display module as operating voltage.Whereby, the demand to external power can be reduced.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate appended accompanying drawing to be described in detail below.
Accompanying drawing explanation
Fig. 1 is the system schematic of the notebook computer according to one embodiment of the invention;
Fig. 2 is the circuit diagram of Fig. 1 according to the voltage selection unit of one embodiment of the invention;
Fig. 3 is the process flow diagram of the method for operating of the display device of foundation one embodiment of the invention;
Fig. 4 is the system schematic of the notebook computer according to another embodiment of the present invention;
Fig. 5 is the circuit diagram of Fig. 4 according to the voltage selection unit of one embodiment of the invention;
Fig. 6 is the circuit diagram of Fig. 4 according to the switch element of one embodiment of the invention;
Fig. 7 is the process flow diagram of the method for operating of the display device of foundation another embodiment of the present invention.
Wherein, Reference numeral
Embodiment
Fig. 1 is the system schematic of the default work notebook computer according to one embodiment of the invention.Please refer to Fig. 1, in the present embodiment, computer 10 comprises main frame 20, first rechargeable battery 30 and display device 100, and wherein main frame 20 provides external voltage V
eXTand image data Dimage is to display device 100, and main frame 20 can receive the system voltage V that the first rechargeable battery 30 provides
dDor civil power and to produce external voltage V
eXT.
Display device 100 comprises display module 110, voltage selection unit 120, Voltagre regulator 130, voltage transmission unit 140, solar cell 150, controller 160 and the first charger 170.Received luminous energy in order to reception environment light (as sunshine), and is converted to electric energy and exports voltage transmission unit 140 to by solar cell 150.Voltage transmission unit 140 couples solar cell 150 and controller 160, in order to the surround lighting that absorbed by solar cell 150 with peak power patten transformation luminous energy changing voltage V
oT.Voltagre regulator 130 is coupled between voltage transmission unit 140 and voltage selection unit 120, in order to the stable luminous energy changing voltage V received by voltage transmission unit 140
oT, optical transition voltage V can be made simultaneously
oTconvert default working power voltage V to
oT '.
Voltage selection unit 120 couples Voltagre regulator 130 and main frame 20, in order to receive default working power voltage V
oT 'and external voltage V
eXT.Working power voltage V is preset when voltage selection unit 120 receives
oT 'and external voltage V
eXTtime, voltage selection unit 120 exports presets working power voltage V
oT 'and external voltage V
eXTmiddle the greater is as operating voltage V
cC.And operating voltage V
cCdisplay module 110 can be exported to, to run required electric power as display module 110.When voltage selection unit 120 receives only external voltage V
eXTtime, then directly export external voltage V
eXTas operating voltage V
cC.
Controller 160 couples voltage transmission unit 140 with solar cell 150 to detect luminous energy changing voltage V
oT.Controller 160 control voltage transmission unit 140, makes luminous energy changing voltage V
oTreach maximum power point.Wherein, at luminous energy changing voltage V
oTacquire a certain degree (95% of such as peak power) be namely considered as reaching maximum power point, this can determine according to the characteristic of solar cell and circuit design demand, and the embodiment of the present invention is not as limit.In addition, controller 160 sustainable detecting luminous energy changing voltage V
oT, or the detecting of detecting cycle (such as 3 seconds) is once, and this can according to those of ordinary skill in the art's sets itself.
When surround lighting is sufficient, received luminous energy is converted to electric energy when being enough to reach maximum power point by solar cell 150, and voltage selection unit 120 exports the default working power voltage V provided by Voltagre regulator 130
oT ', and controller 160 controls the default working power voltage V of the first charger 170 utilization
oT 'first rechargeable battery 30 is charged.Furthermore, when controller 160 continues detecting luminous energy changing voltage V
oTtime, controller 160 can in luminous energy changing voltage V
oTbe held in maximum power point and reach a Preset Time (such as 1 second) judgement optical transition voltage V
oTbe held in maximum power point; As controller 160 1 detecting cycle detecting luminous energy changing voltage V
oTa when time, controller 160 can all detect luminous energy changing voltage V in the detecting action of adjacent (such as 2 times) several times
oTfor judging optical transition voltage V during maximum power point
oTbe held in maximum power point.
In addition, controller 160 can show according to image data Dimage control display module 110.Furthermore, display module 110 comprises driving circuit 111 and display panel 113.Driving circuit 111 couples display panel 113 and controller 160, and receives operating voltage V
cC.Further, driving circuit 111 is controlled by each width picture that controller 160 drives display panel 2113 to transmit with image data displaying Dimage.
At above-described embodiment, display device 100 is for being applied in notebook computer 10, but in other embodiments, display device 100 can be applicable in desktop computer or TV, and external voltage V
eXTcan be provided by transformer.Further, the Voltagre regulator 130 described in above-described embodiment is optionally element, that is when voltage stability is less demanding, can omit Voltagre regulator 130; When voltage stability requires higher, configurable Voltagre regulator 130, this can usually know the circuit design demand of the knowledgeable according to this area and determine.
Fig. 2 is the circuit diagram of Fig. 1 according to the voltage selection unit of one embodiment of the invention.Please refer to Fig. 1 and Fig. 2, in the present embodiment, voltage selection unit 120 comprises the first diode D1 and the second diode D2.The anode of the first diode D1 couples Voltagre regulator 130 to receive default working power voltage V
oT ', the negative electrode of the first diode D1 couples display module 110.The anode of the second diode D2 couples main frame 20 to receive external voltage V
eXT, the negative electrode of the second diode D2 couples display module 110.
Suppose that the forward bias voltage drop of the first diode D1 and the second diode D2 is identical at this, and external voltage V
eXTfor fixed voltage.Preset working power voltage V
oT 'default operating voltage can be remained on according to setting.As default working power voltage V
oT 'higher than external voltage V
eXTtime, then the first diode D1 meeting conducting, so that predetermined work supply voltage V
oT 'can export as operating voltage V
cC, now the second diode D2 can cannot conducting because bias voltage is not enough; As external voltage V
eXThigher than default working power voltage V
oT 'time, then the second diode D2 meeting conducting, so that external voltage V
eXTcan export as operating voltage V
cC, now the first diode D1 can cannot conducting because bias voltage is not enough.According to above-mentioned, can pass through the principle of diode forward conducting, make default working power voltage V
oT 'with external voltage V
eXTnaturally compete, and voltage the higher person can export and as operating voltage V
cC.
Fig. 3 is the process flow diagram of the method for operating of the display device of foundation one embodiment of the invention.Please refer to Fig. 3, in the present embodiment, first can receive the luminous energy changing voltage (step S310) that solar cell provides, and receive external voltage (step S320).When luminous energy changing voltage is not enough to reach default operating voltage (namely not meeting condition of power supply), that is the judged result of step S330 is "No", then external voltage is provided to display module (step S340) as operating voltage; When luminous energy changing voltage is enough to reach default operating voltage (namely meeting condition of power supply), that is the judged result of step S330 is "Yes", then the maximum in luminous energy changing voltage and external voltage is provided to display module (step S350) as operating voltage.
Then, when optical transition voltage is held in default operating voltage, that is the judged result of step S360 is "Yes", then utilize optical transition voltage to charge (step S370) to the first rechargeable battery; When optical transition voltage is not held in default operating voltage, that is the judged result of step S360 is "No", then do not charge (step S380) to the first rechargeable battery.Wherein, the step of above-described embodiment is that the embodiment of the present invention is not as limit, and the details of above-mentioned steps can refer to the embodiment of notebook computer 10, then repeats no more at this in order to illustrate.
Fig. 4 is the system schematic of the notebook computer according to another embodiment of the present invention.Please refer to Fig. 1 and Fig. 4, in notebook computer 10 ', itself and notebook computer 10 difference are voltage selection unit 410, switch element 420, second rechargeable battery 430, second charger 440 and controller 450 in display device 400.Second rechargeable battery 430 couples controller 450, and controller 450 can detect whether the second rechargeable battery 430 is state of saturation.Switch element 420 is coupled to controller 450, between Voltagre regulator 130, second rechargeable battery 430 and voltage selection unit 410, to receive default working power voltage V
oT 'and the second cell voltage V that provide of rechargeable battery 430
bT.Second charger 440 couples Voltagre regulator 130 and the second rechargeable battery 430.
When the second rechargeable battery 430 is for unsaturated state, controller 450 gauge tap unit 420 is nonconducting state, to such an extent as to presets working power voltage V
oT 'and cell voltage V
bTvoltage selection unit 410 can not be sent to.Now, voltage selection unit 410 can export external voltage V
eXTas operating voltage V
cC.Further, controller 450 can control the second charger 440 and utilize default working power voltage V
oT 'second rechargeable battery 430 is charged.
When the second rechargeable battery 430 is state of saturation, controller 450 gauge tap unit 420 is conducting state, to export default working power voltage V
oT ', cell voltage V
bTto voltage selection unit 410.Working power voltage V is preset when voltage selection unit receives
oT ', cell voltage V
bTand external voltage V
eXTtime, voltage selection unit 410 can export default working power voltage V
oT ', cell voltage V
bTand external voltage V
eXTmiddle the maximum is as operating voltage V
cC.When voltage selection unit receives cell voltage V
bTand external voltage V
eXTtime, voltage selection unit 410 can export cell voltage V
bTand external voltage V
eXTmiddle the maximum is as operating voltage V
cC.Wherein, the second rechargeable battery 430 can be considered as state of saturation when charging to a certain degree (such as charging to 60%).Further, controller 450 can control optical transition voltage V
oTbe held in maximum power point, then will the optical transition voltage V of default operating voltage be held in through Voltagre regulator
oTbe converted to default working power voltage V
oT '.Second charger 440 can utilize default working power voltage V
oT 'second rechargeable battery 430 is charged.
Fig. 5 is the circuit diagram of Fig. 4 according to the voltage selection unit of one embodiment of the invention.Please refer to Fig. 4 and Fig. 5, in the present embodiment, voltage selection unit 410 comprises the 3rd diode D3, the 4th diode D4 and the 5th diode D5.The anode of the 3rd diode D3 couples switch element 420 to receive default working power voltage V
oT ', the negative electrode of the 3rd diode D3 couples display module 110.The anode of the 4th diode D4 couples switch element 420 to receive cell voltage V
bT, the negative electrode of the 4th diode D4 couples display module 110.The anode of the 5th diode D5 couples main frame 20 to receive external voltage V
eXT, the negative electrode of the 5th diode D5 couples display module 110.
Identical in the forward bias voltage drop of this hypothesis the 3rd diode D3, the 4th diode D4 and the 5th diode D5, and external voltage V
eXTfor fixed voltage.As default working power voltage V
oT 'higher than external voltage V
eXTand cell voltage V
bTtime, then the 3rd diode D3 meeting conducting, so that preset working power voltage V
oT 'can export as operating voltage V
cC, now the 4th diode D4 and the 5th diode D5 can cannot conducting because bias voltage is not enough; As cell voltage V
bThigher than default working power voltage V
oT 'and external voltage V
eXTtime, then the 4th diode D4 meeting conducting, so that cell voltage V
bTcan export as operating voltage V
cC, now the 3rd diode D3 and the 5th diode D5 can cannot conducting because bias voltage is not enough; As external voltage V
eXThigher than default working power voltage V
oT 'and cell voltage V
bTtime, then the 5th diode D5 meeting conducting, so that external voltage V
eXTcan export as operating voltage V
cC, now the 3rd diode D3 and the 4th diode D4 can cannot conducting because bias voltage is not enough.According to above-mentioned, by the principle of diode forward conducting, make default working power voltage V
oT ', cell voltage V
bTwith external voltage V
eXTnaturally compete, and voltage the higher person can export and as operating voltage V
cC.
Fig. 6 is the circuit diagram of Fig. 4 according to the switch element of one embodiment of the invention.Please refer to Fig. 4 and Fig. 6, in the present embodiment, switch element 420 comprises the first switch (at this for transistor M1) and second switch (at this for transistor M2).The drain electrode (i.e. first end) of transistor M1 couples Voltagre regulator 130 to receive default working power voltage V
oT ', the source electrode (i.e. the second end) of transistor M1 couples voltage selection unit 410, and the grid (i.e. control end) of transistor M1 couples controller 450.The drain electrode (i.e. first end) of transistor M2 couples the second rechargeable battery 430 to receive cell voltage V
bT, the source electrode (i.e. the second end) of transistor M1 couples voltage selection unit 410, and the grid (i.e. control end) of transistor M1 couples controller 450.Wherein, transistor M1 and M2 of this enforcement for nmos pass transistor, but can utilize PMOS transistor in other embodiments, and the switch of other embodiments of the invention is not limited to realize with transistor, and this can according to the usual knowledge in this area all designed, designeds.
Fig. 7 is the process flow diagram of the method for operating of the display device of foundation another embodiment of the present invention.Please refer to Fig. 3 and Fig. 7, in the present embodiment, its difference is step S710, S720, S730, S740.When the second rechargeable battery is unsaturated state (not meeting condition of power supply), that is the judged result of step S710 is "No", then utilize optical transition voltage to charge to the second rechargeable battery, and external voltage is provided to display module (step S720) as operating voltage; When the second rechargeable battery is state of saturation (meeting condition of power supply), that is the judged result of step S710 is "Yes", then perform step S330.
When luminous energy changing voltage reaches default operating voltage (namely meeting condition of power supply), that is the judged result of step S330 is "Yes", then the maximum in luminous energy changing voltage, cell voltage and external voltage is provided to display module (step S730) as operating voltage; When luminous energy changing voltage does not reach default operating voltage, that is the judged result of step S330 is "No", then in the cell voltage provided by the second rechargeable battery and external voltage, the maximum is provided to display module (step S740) as operating voltage.Wherein, the step of above-described embodiment is that the embodiment of the present invention is not as limit, and the details of above-mentioned steps can refer to the embodiment of notebook computer 10 ', then repeats no more at this in order to illustrate.
In sum, the display device of the embodiment of the present invention and method of operating thereof, reach default operating voltage at luminous energy changing voltage, is provided to voltage selection unit, so that the maximum in luminous energy changing voltage and external voltage is provided to display module as operating voltage.In addition, rechargeable battery can be configured in a display device, when rechargeable battery is unsaturated state, utilize luminous energy changing voltage to charge to rechargeable battery; When rechargeable battery is state of saturation, then in cell voltage luminous energy changing voltage, rechargeable battery provided and external voltage, the maximum is provided to display module as operating voltage.By this, display device and solar cell circuit can be promoted and to unite whole degree, and the demand to external power can be reduced.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (13)
1. a display device, is characterized in that, comprising:
One display module;
One solar cell, in order to receive a luminous energy and to convert this luminous energy to an electric energy;
One voltage transmission unit, couples this solar cell to receive this electric energy and to export an optical transition voltage at a maximum power point;
One controller, couples this solar cell and this voltage transmission unit, to detect this electric energy, and when this electric energy reaches this maximum power point, controls this voltage transmission unit export this optical transition voltage; And
One voltage selection unit, couples this voltage transmission unit and an external voltage, and to export in this luminous energy changing voltage and this external voltage the greater to this display module;
Wherein, when this electric energy reaches this maximum power point, control this voltage transmission unit export this optical transition voltage and comprise: when controller continues this electric energy of detecting, when detecting that this optical transition voltage remains on this maximum power point one Preset Time, export this optical transition voltage; Or when controller cycle detects this electric energy, when this optical transition voltage that adjacent repeated detection arrives is for this maximum power point, export this optical transition voltage;
More comprise:
One second rechargeable battery, couples this controller;
One switch element, be coupled to this controller, this voltage transmission unit, between this second rechargeable battery and this voltage selection unit, to receive the cell voltage that this optical transition voltage and this second rechargeable battery provide; And
One second charger, couples this voltage transmission unit, this controller and this second rechargeable battery, utilizes this optical transition voltage to charge to this second rechargeable battery to be controlled by this controller;
Wherein, when this second rechargeable battery is a unsaturated state, it is nonconducting state that this controller controls this switch element, and control this second charger to charge to this second rechargeable battery, when this second rechargeable battery is a state of saturation, it is a conducting state that this controller controls this switch element, to export this luminous energy changing voltage, this cell voltage is to this voltage selection unit, when this voltage selection unit receives this luminous energy changing voltage, when this cell voltage and this external voltage, this voltage selection unit exports this luminous energy changing voltage, in this cell voltage and this external voltage, the maximum is as an operating voltage.
2. display device according to claim 1, is characterized in that, wherein this voltage selection unit comprises:
One first diode, the anode of this first diode couples this voltage transmission unit, and the negative electrode of this first diode couples this display module; And
One second diode, the anode of this second diode receives this external voltage, and the negative electrode of this second diode couples this display module.
3. display device according to claim 1, is characterized in that, more comprises one first charger, and when this optical transition voltage is held in a default operating voltage, this controller controls this first charger and charges to one first rechargeable battery.
4. display device according to claim 3, is characterized in that, is applicable to a computer, and wherein this first rechargeable battery is in order to provide a system voltage to a main frame of this computer.
5. display device according to claim 1, is characterized in that, wherein this voltage selection unit comprises:
One the 3rd diode, the anode of the 3rd diode receives this optical transition voltage, and the negative electrode of the 3rd diode couples this display module;
One the 4th diode, the anode of the 4th diode receives this cell voltage, and the negative electrode of the 4th diode couples this display module; And
One the 5th diode, the anode of the 5th diode receives this external voltage, and the negative electrode of the 5th diode couples this display module.
6. display device according to claim 1, is characterized in that, wherein this switch element comprises:
One first switch, the first end of this first switch couples this voltage transmission unit to receive this optical transition voltage, and the second end of this first switch couples this voltage selection unit, and the control end of this first switch couples this controller; And
One second switch, the first end of this second switch couples this second rechargeable battery to receive this cell voltage, and the second end of this second switch couples this voltage selection unit, and the control end of this second switch couples this controller.
7. display device according to claim 1, is characterized in that, more comprises a Voltagre regulator, is coupled between this voltage transmission unit and this voltage selection unit, is converted to one presets working power voltage to make this luminous energy changing voltage of reception.
8. display device according to claim 1, is characterized in that, is applicable to a computer, and the main frame that wherein this external voltage is this computer is provided.
9. display device according to claim 1, is characterized in that, wherein this controller controls this display module according to an image data and shows.
10. display device according to claim 9, is characterized in that, wherein this display module comprises:
One display panel; And
One drive circuit, couples this display panel and this controller, and receives this operating voltage, and this driving circuit is controlled by this controller and drives this display panel.
The method of operating of 11. 1 kinds of display device, is characterized in that, this display device comprises a display module and a solar cell, and the method for operating of this display device comprises:
There is provided a solar cell, in order to receive a luminous energy and to convert this luminous energy to an electric energy;
One voltage transmission unit is provided, couples this solar cell to receive this electric energy and to export an optical transition voltage at a maximum power point;
One controller is provided, couples this solar cell and this voltage transmission unit, to detect this electric energy, and when this electric energy reaches this maximum power point, control this voltage transmission unit export this optical transition voltage;
Receive this luminous energy changing voltage;
Receive an external voltage;
When meeting a condition of power supply, the maximum in this luminous energy changing voltage and this external voltage is provided to this display module as an operating voltage; And
When not meeting this condition of power supply, using this external voltage as this operating voltage;
Wherein, when this electric energy reaches this maximum power point, control this voltage transmission unit export this optical transition voltage and comprise: when controller continues this electric energy of detecting, when detecting that this optical transition voltage remains on this maximum power point one Preset Time, export this optical transition voltage; Or when controller cycle detects this electric energy, when this optical transition voltage that adjacent repeated detection arrives is for this maximum power point, export this optical transition voltage;
Wherein this display device more comprises one second rechargeable battery, and this condition of power supply is this second rechargeable battery is a state of saturation, and the method for operating of this display device more comprises:
When not meeting this condition of power supply, this optical transition voltage is utilized to charge to this second rechargeable battery, and using this external voltage as this operating voltage;
When meet this condition of power supply and this optical transition voltage reach one preset operating voltage time, in the cell voltage provide this luminous energy changing voltage, this second rechargeable battery and this external voltage, the maximum is as this operating voltage; And
When meeting this condition of power supply and this optical transition voltage does not reach this default operating voltage, using the maximum in this cell voltage and this external voltage as this operating voltage.
The method of operating of 12. display device according to claim 11, is characterized in that, wherein this condition of power supply presets operating voltage for this luminous energy changing voltage reaches one.
The method of operating of 13. display device according to claim 12, is characterized in that, more comprise:
When this optical transition voltage is held in this default operating voltage, this optical transition voltage is utilized to charge to one first rechargeable battery.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100115937A TWI431570B (en) | 2011-05-06 | 2011-05-06 | Display apparatus and operation method thereof |
| TW100115937 | 2011-05-06 |
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| Publication Number | Publication Date |
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| CN102306045A CN102306045A (en) | 2012-01-04 |
| CN102306045B true CN102306045B (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110183160.0A Expired - Fee Related CN102306045B (en) | 2011-05-06 | 2011-06-27 | Display device and operation method thereof |
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| CN (1) | CN102306045B (en) |
| TW (1) | TWI431570B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104732937B (en) * | 2015-03-24 | 2018-02-16 | 珠海格力电器股份有限公司 | Display terminal and apply its equipment |
| TWI639421B (en) * | 2016-11-10 | 2018-11-01 | 睿傳數據股份有限公司 | Smart bedside card and its control management system |
| US10528106B2 (en) | 2017-08-21 | 2020-01-07 | Yonglin Biotech Corp. | Display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2580423Y (en) * | 2002-11-20 | 2003-10-15 | 郑州华岭仪器仪表有限公司 | LCD digital display thermometer powered by double powder sources |
| CN1622004A (en) * | 2003-11-24 | 2005-06-01 | 顺德市顺达电脑厂有限公司 | Electric power administration arrangement and method for portable computers with auxiliary power supply |
| CN101169677A (en) * | 2006-10-24 | 2008-04-30 | 鸿富锦精密工业（深圳）有限公司 | Notebook computer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2924629Y (en) * | 2005-12-19 | 2007-07-18 | 昆盈企业股份有限公司 | Wireless computer peripheral device |
| TWI316217B (en) * | 2005-12-23 | 2009-10-21 | Innolux Display Corp | Display device and control method |
-
2011
- 2011-05-06 TW TW100115937A patent/TWI431570B/en not_active IP Right Cessation
- 2011-06-27 CN CN201110183160.0A patent/CN102306045B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2580423Y (en) * | 2002-11-20 | 2003-10-15 | 郑州华岭仪器仪表有限公司 | LCD digital display thermometer powered by double powder sources |
| CN1622004A (en) * | 2003-11-24 | 2005-06-01 | 顺德市顺达电脑厂有限公司 | Electric power administration arrangement and method for portable computers with auxiliary power supply |
| CN101169677A (en) * | 2006-10-24 | 2008-04-30 | 鸿富锦精密工业（深圳）有限公司 | Notebook computer |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI431570B (en) | 2014-03-21 |
| TW201246145A (en) | 2012-11-16 |
| CN102306045A (en) | 2012-01-04 |
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