CN104795849B - Charge indication means and method - Google Patents
Charge indication means and method Download PDFInfo
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- CN104795849B CN104795849B CN201410021382.6A CN201410021382A CN104795849B CN 104795849 B CN104795849 B CN 104795849B CN 201410021382 A CN201410021382 A CN 201410021382A CN 104795849 B CN104795849 B CN 104795849B
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- frequency elimination
- signal
- frequency
- charge indication
- electronic device
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Abstract
The present invention provides a kind of charge indication means and method.Frequency elimination is carried out to the switching signal of the operating frequency of control power-switching circuit, to obtain frequency elimination signal, and issues back light as charging instruction signal according to frequency elimination signal control backlight module.
Description
Technical field
The invention relates to a kind of electronic devices, and in particular to a kind of charge indication means and method.
Background technique
Electronic product now, as mobile phone or tablet computer are filled in battery electric power lower than after a certain critical value even if plugging
Electric appliance charges, and will also cannot be started up because charger exports finite energy, and user can not all be generated by any key to be appointed
What is reacted.Have to last for charging 2~3 minutes, transient state energy needed for allowing the enough electric power of battery storage and booting moment capable of being provided
Amount, such as after first allowing battery to be charged to 3% or higher electricity, could smoothly be switched on.However there are many electronics to produce on the market at present
Product have no any indicator lamp signal, therefore in above-mentioned battery electric power deficiency, even if in the charge state, user has pressed power button
Also it cannot be started up, can not also find out whether system is normal from cresset, thus easily cause the puzzlement of user
Summary of the invention
The present invention provides a kind of charge indication means and method, can make the electronic device using charge indication means and method
When electricity is lower than transient energy needed for booting moment, its charged state can be also shown.
Charge indication means of the invention are suitable for an electronic device, and charge indication means include backlight module, frequency elimination list
Member and backlight controller.The wherein switching signal of operating frequency of the frequency elimination unit frequency elimination to control power-switching circuit, with
Generate frequency elimination signal.Backlight controller couples backlight module and frequency elimination unit, issues back according to frequency elimination signal control backlight module
Radiant is as charging instruction signal.
In one embodiment of this invention, above-mentioned backlight module includes multiple light emitting diodes, backlight controller
Including driving unit and multiple switch.Wherein driving unit couples above-mentioned multiple light emitting diodes, drives above-mentioned multiple
Light emitting diode is so that it issues back light.Above-mentioned multiple switch is configured at above-mentioned multiple light emitting diodes and drives
On the connection path of moving cell, the on state of these switches is controlled by the frequency elimination signal.
In one embodiment of this invention, above-mentioned frequency elimination signal includes multiple sub- frequency elimination signals, each sub- frequency elimination signal tool
There is different frequencies.
In one embodiment of this invention, above-mentioned charge indication means further include liquid crystal display panel and timing controller.
Wherein timing controller coupling frequency elimination unit and liquid crystal display panel show default picture according to frequency elimination signal control liquid crystal display panel.
In one embodiment of this invention, above-mentioned default picture is sprite.
In one embodiment of this invention, above-mentioned frequency elimination unit is counter.
The charge indication methods of charge indication means of the invention are suitable for electronic device, under charge indication methods include
Column step.The switching signal of operating frequency of the frequency elimination to control power-switching circuit, to generate frequency elimination signal.Believe according to frequency elimination
The backlight module of number control electronic device issues back light as charging instruction signal.
In one embodiment of this invention, above-mentioned backlight module includes multiple light emitting diodes, is believed according to frequency elimination
The backlight module of number control electronic device issues the step of back light and includes, and multiple shines two according to the control of frequency elimination signal is above-mentioned
Pole pipe unit is carried out respectively with different luminous frequencies luminous.
In one embodiment of this invention, above-mentioned backlight module includes multiple light emitting diodes, is believed according to frequency elimination
The backlight module of number control electronic device issues the step of back light and includes, according to the above-mentioned more of the frequency elimination signal control portion
A light emitting diode carries out luminous.
In one embodiment of this invention, above-mentioned charge indication methods further include filling according to frequency elimination signal control electronics
The liquid crystal display panel set shows default picture.
In one embodiment of this invention, above-mentioned default picture is sprite.
Based on switching signal progress above-mentioned, that the embodiment of the present invention passes through the operating frequency to control power-switching circuit
Frequency elimination to obtain frequency elimination signal, and issues back light as charging instruction signal according to frequency elimination signal control backlight module.Such as
This can make using the electronic device of charge indication means and its method when electricity is lower than transient energy needed for booting moment,
Also its charged state can be shown.
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and cooperate shown attached drawing
It is described in detail below.
Detailed description of the invention
Fig. 1 shows the schematic diagram of the charge indication means of one embodiment of the invention；
Fig. 2 shows the schematic diagrames of the charge indication means of another embodiment of the present invention；
Fig. 3 shows the schematic diagram of the charge indication means of another embodiment of the present invention；
Fig. 4 shows the charge indication methods schematic diagram of the charge indication means of one embodiment of the invention；
Fig. 5 shows the charge indication methods schematic diagram of the charge indication means of another embodiment of the present invention.
Description of symbols:
102: frequency elimination unit；
104: backlight controller；
106: backlight module；
202: driving unit；
302: timing controller；
304: liquid crystal display panel；
S1: switching signal；
S2: frequency elimination signal；
SW1~SW3: switch；
D1~D3: light emitting diode；
SC1~SC3: sub- frequency elimination signal；
S402~S404, S502: the charge indication methods step of charge indication means.
Specific embodiment
Fig. 1 shows the schematic diagram of the charge indication means of one embodiment of the invention, please refers to Fig. 1.Charge indication means can
Such as applied to the portable electronic device such as mobile phone, tablet computer or laptop, charge indication means include frequency elimination list
Member 102, backlight controller 104 and backlight module 106, wherein backlight controller 104 couples frequency elimination unit 102 and backlight module
106.Frequency elimination unit 102 can receive switching signal S1, and generate frequency elimination signal S2 to its frequency elimination, and frequency elimination unit 102 can be such as
For counter, so it is not limited.Power-switching circuit (not shown) of the switching signal S1 to control switching electronic device
Operating frequency, and power-switching circuit is converted into electronic device internal circuit to voltage provided by the battery by electronic device
Required voltage when running.Backlight controller 104 can then control backlight module 106 according to frequency elimination signal S2 and issue back light work
For charging instruction signal.
As noted previously, as voltage needed for driving backlight controller 104 controls the sending back light of backlight module 106 is remote
Less than transient voltage needed for booting, therefore even if the battery capacity of electronic device can still pass through lower than voltage needed for booting
Backlight controller 104 directly drives backlight module 106 and issues back light to indicate the charged state of user's electronic device.This
Outside, it since the present embodiment is merely using the back light that backlight module is issued as indication signal, is also not necessary in electronics
In addition chip is set in device to control the complicated charging instruction pattern of the LCD display version of electronic device display and (such as show
One cell pattern), and the manufacturing cost of electronic device can be saved.
Fig. 2 shows the schematic diagrames of the charge indication means of another embodiment of the present invention, referring to figure 2..In the present embodiment
Backlight controller 104 may include driving unit 202 and multiple switch SW1~SW3, and furthermore backlight module 106 may include multiple
Light emitting diode D1~D3.Wherein switch SW1~SW3 is respectively arranged at corresponding light emitting diode D1~D3 and drives
Between moving cell 202, switch SW1~SW3 can be implemented, furthermore each light emitting diode for example shown in Fig. 2 with transistor
It can for example be constituted with multiple light emitting diodes of concatenation, be so not limited.
Driving unit 202 couples light emitting diode D1~D3, and driving unit 202 can drive light emitting diode D1
~D3 is so that it issues back light.Frequency elimination unit 102 can generate with the multiple of different frequency switching signal S1 frequency elimination
Sub- frequency elimination signal SC1~SC3, and the on state of switch SW1~SW3 is controlled by sub- frequency elimination signal SC1~SC3.So
It can make light emitting diode by sub- frequency elimination signal SC1~SC3 of different frequency come the on state of control switch SW1~SW3
1~D3 of cells D is lit in different times, and reaches the display effect such as horse race lamp, and then informs user's electronics whereby
The charged state of device.
It is worth noting that, above-described embodiment only with three switch SW1~SW3 and three light emitting diode D1~
It is illustrated for D3, is so not limited thereto, charge indication means may also comprise more switches and hair in practical application
Optical diode unit.In addition, in some embodiments, switch SW1~SW3 of part can also be completely closed or open, with region
Formula dims the mode of (local Dimming) to indicate the charged state of electronic device.
Fig. 3 shows the schematic diagram of the charge indication means of another embodiment of the present invention, referring to figure 3..In the present embodiment
Charge indication means further include timing controller 302 and liquid crystal display panel 304, and wherein timing controller 302 couples frequency elimination unit 102
With liquid crystal display panel 304.Timing controller 302 can control liquid crystal display panel 304 according to the frequency elimination signal S2 that frequency elimination unit 102 is exported
Cooperate the simply default picture of the display of backlight module 106 one, such as one is all white or blue sprite.Due to timing control
Device 302 processed, which shows this default picture and is not necessary to chip is in addition arranged in electronic device, to be accomplished, therefore can still save electronics
The manufacturing cost of device, and the liquid crystal molecule in liquid crystal display panel can be rearranged, avoid electronic device from showing torsional deformation
Picture.
Fig. 4 shows the charge indication methods schematic diagram of the charge indication means of one embodiment of the invention.Conclude above-mentioned charging
The charge indication methods of instruction device may include the following steps.Firstly, operating frequency of the frequency elimination to Switching power conversion circuit
Switching signal, to generate frequency elimination signal (step S402).Then, the backlight module hair according to frequency elimination signal control electronic device
Back light is as charging instruction signal (step S404) out.Wherein backlight module may include multiple light emitting diodes, according to
When issuing back light according to the backlight module of frequency elimination signal control electronic device, multiple light emitting diodes point can be for example controlled
Do not carried out with different luminous frequencies it is luminous, to reach the display effect such as horse race lamp, so inform whereby user's electronics fill
The charged state set.In other embodiments, can also only control section light emitting diode carry out it is luminous, with region-type tune
The mode of light indicates the charged state of user's electronic device.
Fig. 5 shows the charge indication methods schematic diagram of the charge indication means of another embodiment of the present invention, referring to figure 5..
The charge indication methods of the charge indication means of the present embodiment and Fig. 4 embodiment the difference is that, the charging of the present embodiment
After step S402, the liquid crystal display panel also according to frequency elimination signal control electronic device is shown in advance the charge indication methods of instruction device
If picture (step S502), wherein default picture can for example be all the sprite of white or blue, so can avoid in step
When S404 controls backlight module sending back light, electronic device is allowed to show the picture of torsional deformation.
In conclusion the present invention carries out frequency elimination by the switching signal of the operating frequency to control power-switching circuit, with
Frequency elimination signal is obtained, and issues back light as charging instruction signal according to frequency elimination signal control backlight module, so that using
The electronic device of charge indication means and its method can also show that it is filled when electricity is lower than transient energy needed for booting moment
Electricity condition, and the manufacturing cost of electronic device is saved simultaneously.In some embodiments, also liquid crystal surface can be controlled according to frequency elimination signal
The default picture that plate cooperation backlight module is shown, avoids electronic device from torsional deformation occur while showing charging instruction signal
Picture.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (9)
1. a kind of charge indication means, it is suitable for an electronic device, which is characterized in that the charge indication means include:
One backlight module, including multiple light emitting diodes；
One frequency elimination unit, a switching signal of operating frequency of the frequency elimination to control a power-switching circuit, to generate a frequency elimination
Signal, wherein the power-switching circuit is converted into inside the electronic device to voltage provided by the battery by the electronic device
Circuit voltage required when operating, which includes multiple sub- frequency elimination signals, and respectively the sub- frequency elimination signal has different frequencies
Rate；And
One backlight controller, couples the backlight module and the frequency elimination unit, which includes:
One driving unit couples multiple light emitting diode, drive the light emitting diode of the backlight module so that its
A back light is issued, using as a charging instruction signal；And
Multiple switch is respectively arranged on multiple connection paths of multiple light emitting diode and the driving unit, this is more
The on state of a switch is controlled by respectively sub- frequency elimination signal of different frequency in the frequency elimination signal.
2. charge indication means according to claim 1, which is characterized in that further include:
One liquid crystal display panel；And
One timing controller couples the frequency elimination unit and the liquid crystal display panel, and it is aobvious to control the liquid crystal display panel according to the frequency elimination signal
Show a default picture.
3. charge indication means according to claim 2, which is characterized in that the default picture is a sprite.
4. charge indication means according to claim 1, which is characterized in that the frequency elimination unit is a counter.
5. a kind of charge indication methods of charge indication means are suitable for an electronic device, which is characterized in that the charging instruction side
Method includes:
One switching signal of operating frequency of the frequency elimination to control a power-switching circuit wherein should with generating a frequency elimination signal
When power-switching circuit is converted into electronic device internal circuit running to voltage provided by the battery by the electronic device
Required voltage, the frequency elimination signal include multiple sub- frequency elimination signals, and respectively the sub- frequency elimination signal has different frequencies；
It controls multiple light emitting diode and issues a back light, using as a charging instruction signal；And
Sub- frequency elimination signal according to the frequency elimination signal passes through different frequency conducting and a backlight module of the electronic device respectively
Multiple connection paths of multiple light emitting diodes, wherein dividing on multiple connection path of multiple light emitting diode
Not Pei Zhiyou multiple switch, respectively son that the on state of multiple switch is controlled by different frequency in the frequency elimination signal removes
Frequency signal.
6. charge indication methods according to claim 5, which is characterized in that control the electronic device according to the frequency elimination signal
Backlight module the step of issuing the back light include:
It is luminous multiple light emitting diode is controlled according to the frequency elimination signal to be carried out respectively with different luminous frequencies.
7. charge indication methods according to claim 5, which is characterized in that control the electronic device according to the frequency elimination signal
Backlight module the step of issuing the back light include:
Multiple light emitting diode according to the frequency elimination signal control portion carries out luminous.
8. charge indication methods according to claim 5, which is characterized in that further include:
The liquid crystal display panel for controlling the electronic device according to the frequency elimination signal shows a default picture.
9. charge indication methods according to claim 8, which is characterized in that the default picture is a sprite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021382.6A CN104795849B (en) | 2014-01-17 | 2014-01-17 | Charge indication means and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021382.6A CN104795849B (en) | 2014-01-17 | 2014-01-17 | Charge indication means and method |
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| Publication Number | Publication Date |
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| CN104795849A CN104795849A (en) | 2015-07-22 |
| CN104795849B true CN104795849B (en) | 2019-01-22 |
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| CN201410021382.6A Active CN104795849B (en) | 2014-01-17 | 2014-01-17 | Charge indication means and method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110148976A (en) * | 2018-02-12 | 2019-08-20 | 启碁科技股份有限公司 | Electronic device and its control method |
| CN108776636A (en) * | 2018-06-26 | 2018-11-09 | Oppo广东移动通信有限公司 | Mobile terminal charge prompting method, apparatus and computing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237728A (en) * | 2007-01-31 | 2008-08-06 | 中华映管股份有限公司 | LED backlight system and driving method of backlight source |
| CN201829171U (en) * | 2010-06-28 | 2011-05-11 | 北京思旺电子技术有限公司 | Liquid crystal display (LCD) screen drive circuit capable of displaying capacity and battery charger |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11501200A (en) * | 1995-12-14 | 1999-01-26 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | Apparatus having a rechargeable battery and a display device for displaying a display symbol displayed during a period of use of the battery in a short form in a simulated operation mode |
| JP2004119268A (en) * | 2002-09-27 | 2004-04-15 | Seiko Instruments Inc | Battery charging protection circuit and power supply device |
| KR100910450B1 (en) * | 2007-08-27 | 2009-08-04 | 삼성전기주식회사 | Backlight unit synchronized with image signal for liquid crystal display |
| TW201344223A (en) * | 2012-04-26 | 2013-11-01 | Sy-Ruen Hung | The frequency of detection of the secondary battery remaining capacity of the method and display device |
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2014
- 2014-01-17 CN CN201410021382.6A patent/CN104795849B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237728A (en) * | 2007-01-31 | 2008-08-06 | 中华映管股份有限公司 | LED backlight system and driving method of backlight source |
| CN201829171U (en) * | 2010-06-28 | 2011-05-11 | 北京思旺电子技术有限公司 | Liquid crystal display (LCD) screen drive circuit capable of displaying capacity and battery charger |
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| CN104795849A (en) | 2015-07-22 |
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