CN101819731A - Display with solar module and power supply method thereof - Google Patents

Display with solar module and power supply method thereof Download PDF

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Publication number
CN101819731A
CN101819731A CN201010105469A CN201010105469A CN101819731A CN 101819731 A CN101819731 A CN 101819731A CN 201010105469 A CN201010105469 A CN 201010105469A CN 201010105469 A CN201010105469 A CN 201010105469A CN 101819731 A CN101819731 A CN 101819731A
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CN
China
Prior art keywords
voltage
display
solar
default value
module
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Granted
Application number
CN201010105469A
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Chinese (zh)
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CN101819731B (en
Inventor
张智明
林孟贤
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Qisda Suzhou Co Ltd
Qisda Optronics Suzhou Co Ltd
Qisda Corp
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Qisda Suzhou Co Ltd
Qisda Corp
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Priority to CN2010101054693A priority Critical patent/CN101819731B/en
Publication of CN101819731A publication Critical patent/CN101819731A/en
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Publication of CN101819731B publication Critical patent/CN101819731B/en
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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
    • 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
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Power Sources (AREA)

Abstract

The invention relates to a display with solar module and a power supply method thereof. The display comprises a battery, a main circuit, a maintaining circuit, a panel, a backlight module and a solar module, wherein the battery supplies power to the main circuit in order to lighten the backlight module and display images on the panel, the backlight module is arranged between the panel and the solar module, external lights outside of the display body can be received by the solar module through the panel or internal lights generated by the backlight module are received by the solar module when the display opens the panel and the backlight module, and when the external lights or the internal lights are received by the solar module, the solar module generates solar voltage to supply power to the maintaining circuit to maintain standby function. With the help of the display with the solar module, both the time of maintaining standby function and the working time of the battery can be prolonged.

Description

Display and method of supplying power to thereof with solar energy module
Technical field
The present invention is about a kind of display and method of supplying power to thereof with solar energy module, the particularly display of the display interior partial circuit being powered, and the method for using this solar energy module relevant for a kind of solar energy module circuit that receives outside display light or display interior light.
Background technology
Progress along with science and technology, the use of various personal devices is more general, various small-sized and battery-powered displays: for example, digital photo-frame (DPF), mobile phone, palmtop computer (PDA), mobile internet surfing equipment (MID) etc. all can be subjected to the restriction of battery capacity, and its demonstration time or air time are more and more tested.Especially out of doors the place is difficult to find socket to charge, and keeps the normal power supply of battery.
For this reason, people are attempting utilizing solar energy module to come battery is charged.Solar energy module can receive the irradiation of sunshine or artificial light source, by transform light energy to electric energy and then to the battery charge of display, this technology can nationality by work or stand-by time that luminous energy prolongs display, provide great convenience to the user.
The display that prior art uses solar energy module is mostly as the auxiliary charging system of display, solar energy module is arranged on the surface (as solar calculator) of display usually or seeing through an interface connects monitor body, as Fig. 1 is example, and display 10 has panel 11, backlight module 12, solar energy module 13, battery 14, main circuit 15, holding circuit 16, charhing unit 17 and switch 18; When using switch 18 opening displays 10, when 14 pairs of main circuits of battery 15 are powered with holding circuit 16, main circuit 15 can comprise image processing chip, mnemon, power supply unit and output unit (not icon), the major function of main circuit 15 is powered to panel 11 and backlight module 12, and does demonstration via output unit supply signal of video signal to panel; Holding circuit 16 has an energy storage component and specific function circuit (not icon), the function that need keep when the specific function circuit is used for the operating part standby usually.For example: keep real-time time (Real Time Clock), time showing and keep the usefulness of keying line standby; When removing battery 14 power supplies, panel 11 decommissions simultaneously with backlight module 12, and this moment, holding circuit 16 still can be supplied the running that electric energy is kept the specific function circuit by energy storage component; In the time of within battery 14 is installed on display 10, battery 14 can be to the energy storage component charging, the electric energy in the consuming cells.
Solar energy module 13 can be couple to charhing unit 17 with civil power in addition, the detailed operation content can be with reference to U.S. Pat 6,384,570 content is described, solar energy module 13 is as assisting battery 14 chargings, though can do auxiliary replenishing for battery electric quantity, if but the state that battery is not contained in display down or switch cut off fully under the state of power supply of battery, holding circuit 16 only can be supplied the running that electric energy is kept the specific function circuit by energy storage component, it is limited that energy storage component is generally the electric capacity that gold capacitor (toggle type or convoluted capacitor) stores, when exhausting electric energy, the function that should keep can be interrupted, cause user's inconvenience.
In addition, solar energy module of the prior art is arranged at the outside of electronic installation usually, connect charhing unit with terminal in addition, need carry solar energy module in addition and cause not convenient in the use, maybe can be arranged at the outside surface of electronic installation in addition, but can cause visual puzzlement again the outward appearance of electronic installation.
Summary of the invention
At above-mentioned technical matters, the present invention increases solar recharging system on the basis of existing display, reaches the neither influence charging mechanism of charging system originally, can effectively prolong the work of display or the purpose of stand-by time again.
A kind of display that purpose according to the present invention provides comprises panel, backlight module, solar energy module, main circuit and holding circuit.Backlight module is arranged between this panel and this solar energy module, this solar energy module optionally receives internal light that extraneous light outside this display and this backlight module produce in order to produce solar voltage, and this extraneous light is received by this solar energy module after passing through this panel.Holding circuit is kept and is carried out at least one specific function in order to when this main circuit is opened or closed, and this solar energy module provides this holding circuit required electric energy.
A kind of display that purpose according to the present invention provides wherein further comprises charge controller, couples this solar energy module and receives this solar voltage, and when this magnitude of voltage during greater than first default value, this charge controller provides this holding circuit required electric energy.
A kind of display that purpose according to the present invention provides wherein further comprises battery, and when this magnitude of voltage during greater than second default value, this charge controller is to this battery charge, and this second default value is greater than this first default value.
A kind of display that purpose according to the present invention provides, wherein: this charge controller also comprises:
Converting unit is in order to convert this magnitude of voltage to digital value;
Comparing unit stores this first default value and this second default value, and this comparing unit is this digital value and this first default value and this second default value relatively; And
Output unit, when this digital value during greater than this first default value, this output unit is exported first charging voltage and is given this holding circuit, when this digital value during greater than this second default value, this output unit is exported second charging voltage and is given this battery, and this second charging voltage is greater than this first charging voltage.
A kind of display that purpose according to the present invention provides, wherein further comprise battery and switch, this battery connects this main circuit by this switch, and wherein when this main circuit of this switch open, this panel and this backlight module are opened and this backlight module produces this internal light.
A kind of display that purpose according to the present invention provides, wherein: when this main circuit of this switch open, this battery and this solar energy module provide this holding circuit required electric energy jointly, and perhaps this solar energy module provides this holding circuit required electric energy separately.
A kind of method of supplying power to that is used for display that provides according to another object of the present invention, this display has panel, backlight module, solar energy module, main circuit and holding circuit, this holding circuit is kept at least one specific function in order to when this main circuit is opened or closed, and this method comprises:
This backlight module is set between this panel and this solar energy module;
This solar energy module receives internal light that this outside display light or this backlight module produce in order to producing solar voltage, and this extraneous light is received by this solar energy module after via this panel;
This solar voltage provides this holding circuit required electric energy; And
This holding circuit continues to carry out this at least one specific function.
According to a kind of method of supplying power to that is used for display that another object of the present invention provides, wherein this solar voltage has magnitude of voltage, and this method also comprises: when this magnitude of voltage during greater than first default value, this solar voltage provides this holding circuit required electric energy.
A kind of method of supplying power to that is used for display that provides according to another object of the present invention, wherein also comprise: provide battery in order to power to this main circuit, when this magnitude of voltage during greater than second default value, this solar voltage is to this battery charge, and this second default value is greater than this first default value.
According to a kind of method of supplying power to that is used for display that another object of the present invention provides, wherein, this holding circuit has energy storage component and specific function circuit, and this method also comprises:
When this magnitude of voltage during greater than first default value, this solar voltage is to this energy storage component charging; And
When this magnitude of voltage less than this first default value and this battery runs down, this energy storage component provide electric energy to this specific function circuit in order to continue to carry out this at least one specific function.
By the present invention, can prolong the standby and the working time of display, and, just realize utilizing the auxiliary charging effect of solar energy module, surcharge that can the new display device only by increasing several circuit units.
Description of drawings
Fig. 1 is the synoptic diagram of the solar recharging system of prior art;
Fig. 2 is the synoptic diagram of the solar recharging system of one embodiment of the invention;
Fig. 3 is the synoptic diagram of the charge controller system of one embodiment of the invention;
The process flow diagram of the method for keeping at least one specific function of Fig. 4 one embodiment of the invention.
Embodiment
For making purpose of the present invention, structure, feature and function thereof there are further understanding, cooperate embodiment to be described in detail as follows.
See also Fig. 2, provide an embodiment to be used for explaining orally the present invention, display 100 comprises: panel 110, backlight module 120, solar energy module 130, battery 140, charge controller 154, main circuit 150, holding circuit 160 and switch 142 etc.; Main circuit 150, solar energy module 130, charge controller 154 can be arranged at (not icon) on the circuit board with holding circuit 160; The one side of panel 110 is arranged at the surface of display 100, when backlight module 120 produces light and panel 110 receives signal of video signal, panel 110 show images, backlight module 120 and solar energy module 130 are arranged at the inside of display 100 and backlight module 120 are arranged between panel 110 and the solar energy module 130, so just solar energy module 130 can be hidden in the inside of display 100, more succinct than prior art to the setting of solar energy module 130; Panel 110, backlight module 120 can be combined into a module with ironware (not icon) usually with the foregoing circuit plate and be fixed in the display 100; in order to make display 100 lightweights; meeting perforate on ironware; in conjunction with the time make solar energy module 130 corresponding above-mentioned perforate settings; at this moment, display 110 light from outside can be received with the perforate of backlight module 120 and then by solar energy module 130 via panel 110.
The light source of above-mentioned backlight module 120 can adopt cold cathode fluorescent tube, thermic cathode fluorimetric pipe, LED or electroluminescence sheet EL etc., and the structure of backlight module 120 can be side-light type structure, full run-down type structure or hollow type structure; In the present invention, the extraneous light of display 100 (as sunshine or indoor light) is to pass panel 110 backs to be received by solar energy module 130, and when backlight module 120 starts, produce internal light irradiation panel 110 in order to show image, can shine solar energy module 130 on the other hand, solar energy module 130 promptly produces the solar voltage of tool one magnitude of voltage according to said external light or internal light.
One of function of main circuit 150 is that panel 110 and backlight module 120 are given in power supply, and the supply signal of video signal does demonstration for panel 110; Holding circuit logical 160 often have an energy storage component (for example: gold capacitor 156) with the specific function circuit (for example: RTC circuit 152), the function that the specific function circuit is provided is under the state that whether main circuit 150 is opened no matter, specific function circuit 160 is the function that need keep when being used for the operating part standby, providing the function of " keeping real-time time " with RTC circuit 152 is example, when main circuit 150 is opened, RTC circuit 152 provides " real-time time " to the function of main circuit 150 as time showing, and when main circuit 150 was closed, RTC circuit 152 still needed to continue to operate in order to keep the counting of real-time time; Be that 156 chargings make 156 pairs of RTC circuit of gold capacitor, 152 power supply or solar voltage to the solar voltage that solar energy module 130 is produced to gold capacitor in the present embodiment, directly power to RTC circuit 152 via charge controller 154, holding circuit 160 is kept carried out at least one specific function.
When battery 140 is installed on display 100 and starting switch 142 when making battery 140 power supply give main circuit 150, battery 140 can be together with solar energy module 130 common power supplies to holding circuit logical 160, when battery 140 does not have electricity or is not installed on display, solar energy module 130 is just powered separately and is given holding circuit 160, also can only allow solar energy module 130 independent power supplies give holding circuit 160 in order to the simplification line design according to deviser's selection.
Solar energy module 130 couples and provides solar voltage to charge controller 154, and as shown in Figure 3, charge controller 154 comprises converting unit 1542, comparing unit 1544 and output unit 1546; Converting unit 1542 converts digital value in order to the magnitude of voltage with solar voltage, comparing unit 1544 inside have memory function and store with digitized first default value and second default value comparing unit 1544 comparative figures values and first default value and second default value; Output unit 1546 receives solar voltage, output unit 1546 has voltage stabilizing and the function of exporting fixed voltage, output unit 1546 can utilize amplifier to realize this function on the circuit of reality, when comparing unit 1544 comparative figures values during greater than first default value, comparing unit 1544 makes output unit 1546 outputs first charging voltage give holding circuit 160, that is when solar voltage is not enough, charge controller 154 does not provide electric energy to holding circuit 160, when solar voltage was sufficient, charge controller 154 provided fixing first charging voltage to holding circuit 160; Generally speaking 140 chargings need higher charging voltage to battery, therefore when digital value during greater than second default value, comparing unit 1544 makes output unit 1546 outputs second charging voltage give this battery 140, second default value greater than first default value and second charging voltage greater than first charging voltage, at output unit booster circuit (not icon) can be set in addition in addition, solar voltage can be drawn high second charging voltage; When battery 140 does not have electricity or is not installed on display and the voltage that produced of solar energy module 130 during less than first predetermined value, holding circuit 160 only can inner tank circuit (as gold capacitor 156) to the specific function circuit (for example: supply electric energy RTC circuit 152).
As shown in Figure 4, the present invention provides a kind of method of keeping at least one specific function to be used for display in addition, the assembly of display is as noted earlier, the structure that ties up to display at step S40 is provided with backlight module earlier between panel and solar energy module when being provided with, make solar energy module and backlight module be arranged at display interior, one surface of panel is arranged at the outside surface of display, the extraneous light of outside display is received by this solar energy module after can passing panel, and the internal light that produces after the backlight module energising is opened is received by solar energy module; Produce the solar voltage of tool one magnitude of voltage according to extraneous light or internal light at step S42 solar energy module; Have a magnitude of voltage in step S44 solar voltage, earlier convert magnitude of voltage to digital value, when magnitude of voltage during greater than first default value, as described in step S46, solar voltage provides the first required charging voltage of this holding circuit; As described in step S48, when the magnitude of voltage of above-mentioned solar voltage during greater than second default value, solar voltage is to battery charge (step S49).When magnitude of voltage less than this first default value and this battery runs down, energy storage component provide electric energy to the specific function circuit in order to continue to carry out at least one specific function, at least one specific function is to keep one of real-time time, time showing and remote control standby function.
By the present invention, can prolong the standby and the working time of portable electron device, and, just realize utilizing the auxiliary charging effect of solar energy module only by increasing several circuit units, can save manufacturing cost.
By the detailed description of above preferable embodiment, hope can be known description feature of the present invention and spirit more, and is not to come claim scope of the present invention is limited with above-mentioned disclosed preferable embodiment.On the contrary, its objective is that hope can contain in the scope of claim of being arranged in of various changes and tool equality institute of the present invention desire application.

Claims (10)

1. display is characterized in that comprising:
Panel;
Backlight module;
Solar energy module, this backlight module is arranged between this panel and this solar energy module, this solar energy module optionally receives the internal light that extraneous light outside this display and this backlight module produce and has the solar voltage of magnitude of voltage in order to generation, and this extraneous light is received by this solar energy module after passing through this panel;
Main circuit; And
Holding circuit in order to when this main circuit is opened or closed, is kept and is carried out at least one specific function, and this solar energy module provides this holding circuit required electric energy.
2. display as claimed in claim 1 is characterized in that further comprising charge controller, couples this solar energy module and receives this solar voltage, and when this magnitude of voltage during greater than first default value, this charge controller provides this holding circuit required electric energy.
3. display as claimed in claim 2 is characterized in that further comprising battery, and when this magnitude of voltage during greater than second default value, this charge controller is to this battery charge, and this second default value is greater than this first default value.
4. display as claimed in claim 3 is characterized in that: this charge controller also comprises:
Converting unit is in order to convert this magnitude of voltage to digital value;
Comparing unit stores this first default value and this second default value, and this comparing unit is this digital value and this first default value and this second default value relatively; And
Output unit, when this digital value during greater than this first default value, this output unit is exported first charging voltage and is given this holding circuit, when this digital value during greater than this second default value, this output unit is exported second charging voltage and is given this battery, and this second charging voltage is greater than this first charging voltage.
5. display as claimed in claim 1, it is characterized in that further comprising battery and switch, this battery connects this main circuit by this switch, and wherein when this main circuit of this switch open, this panel and this backlight module are opened and this backlight module produces this internal light.
6. display as claimed in claim 5 is characterized in that: when this main circuit of this switch open, this battery and this solar energy module provide this holding circuit required electric energy jointly, and perhaps this solar energy module provides this holding circuit required electric energy separately.
7. method of supplying power to that is used for display, this display has panel, backlight module, solar energy module, main circuit and holding circuit, this holding circuit is kept at least one specific function in order to when this main circuit is opened or closed, and it is characterized in that this method comprises:
This backlight module is set between this panel and this solar energy module;
This solar energy module receives internal light that this outside display light or this backlight module produce in order to producing solar voltage, and this extraneous light is received by this solar energy module after via this panel;
This solar voltage provides this holding circuit required electric energy; And
This holding circuit continues to carry out this at least one specific function.
8. method as claimed in claim 7 is characterized in that this solar voltage has magnitude of voltage, and this method also comprises: when this magnitude of voltage during greater than first default value, this solar voltage provides this holding circuit required electric energy.
9. method as claimed in claim 8 is characterized in that also comprising: provide battery in order to power supply to this main circuit, when this magnitude of voltage during greater than second default value, this solar voltage is to this battery charge, this second default value is greater than this first default value.
10. method as claimed in claim 9 is characterized in that, this holding circuit has energy storage component and specific function circuit, and this method also comprises:
When this magnitude of voltage during greater than first default value, this solar voltage is to this energy storage component charging; And
When this magnitude of voltage less than this first default value and this battery runs down, this energy storage component provide electric energy to this specific function circuit in order to continue to carry out this at least one specific function.
CN2010101054693A 2010-01-19 2010-01-19 Display with solar module and power supply method thereof Expired - Fee Related CN101819731B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010101054693A CN101819731B (en) 2010-01-19 2010-01-19 Display with solar module and power supply method thereof

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Application Number Priority Date Filing Date Title
CN2010101054693A CN101819731B (en) 2010-01-19 2010-01-19 Display with solar module and power supply method thereof

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CN101819731A true CN101819731A (en) 2010-09-01
CN101819731B CN101819731B (en) 2011-09-14

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102318178A (en) * 2011-07-29 2012-01-11 华为终端有限公司 Ultra-long standby method and ultra-long standby terminal
CN104242473A (en) * 2013-06-17 2014-12-24 纬创资通股份有限公司 Power supply system and method and electronic device
CN106063138A (en) * 2013-06-24 2016-10-26 崔炳喆 User terminal capable of self-charging by using sunlight charging unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102318178A (en) * 2011-07-29 2012-01-11 华为终端有限公司 Ultra-long standby method and ultra-long standby terminal
WO2011137874A3 (en) * 2011-07-29 2012-06-21 华为终端有限公司 Ultra-long standby method and ultra-long standby terminal
CN104242473A (en) * 2013-06-17 2014-12-24 纬创资通股份有限公司 Power supply system and method and electronic device
CN106063138A (en) * 2013-06-24 2016-10-26 崔炳喆 User terminal capable of self-charging by using sunlight charging unit

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