CN106097998A - A kind of power interruption protector for LCD monitor - Google Patents
A kind of power interruption protector for LCD monitor Download PDFInfo
- Publication number
- CN106097998A CN106097998A CN201610425490.9A CN201610425490A CN106097998A CN 106097998 A CN106097998 A CN 106097998A CN 201610425490 A CN201610425490 A CN 201610425490A CN 106097998 A CN106097998 A CN 106097998A
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- Prior art keywords
- signal
- power
- lcd monitor
- storage element
- improper
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Computer Hardware Design (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
A kind of power interruption protector being applied to LCD monitor; action mainly by detector, signal delay component and controlled switch; reach digital image signal, control signal is sequentially closed with power supply signal; to meet the requirement of LCD monitor vendor specifications, and then avoid the defect of communal technique.
Description
Technical field
The present invention relates to a kind of power interruption protector, particularly to a kind of for LCD Panel monitor improper
Power-off protection apparatus.
Background technology
Designing and developing of electronic product, mostly with compact for its developing goal, computer monitor (Monitor)
No exception, the monitor of conventional cathode ray tube (Cathode-Ray Tube) formula, owing to volume is quite big, power consumption situation is the most not
Ideal, therefore, frivolous and more power saving the LCD monitor of external form (LCD Monitor) becomes the most valued
A new generation's display.
Seeing Fig. 1, it is the signal reception of LCD monitor 01 (LCD Monitor) the most on the market
The block schematic diagram of end, and signal kinds to be broadly divided into (1) be source signal (2) digital image signal (3) control signal three class, its
Middle power supply, signal are the electric power needed for operating as LCD monitor (LCD Monitor), and digital image signal
And control signal respectively represents the signal of video signal of picture shown by fluorescent screen and the pattern of display.But according to liquid crystal display
The normal shutdown program of screen monitor (LCD Monitor) manufacturer's defined, computer terminal need to sequentially close digitized video
Can cut off the electricity supply after the output of signal and control signal signal, but at public LCD monitor (LCD
Monitor) under structure, when the unexpected power-off of power supply or the improper shutdown of user, (1) power supply signal (2) digital image signal (3)
Three signals such as control signal will be cut off simultaneously, it is impossible to meets LCD monitor (LCD Monitor) manufacturer rule
The demand of lattice, thus cause following point to produce most probably: (a) has dash current generation (b) pixel to have the generation of white picture
C the conversion tense of the internal liquid crystal of () LCD Panel is abnormal so that LCD monitor (LCD Monitor)
Service life shortens, and how to solve the defect of above-mentioned all communal technique means, and provides actual techniques means to complete, and is
The main object of the present invention.
Summary of the invention
The present invention is a kind of power interruption protector for LCD monitor, is applied to LCDs
Between curtain monitor and liquid crystal display signal generator, the receiving terminal of this LCD monitor is respectively in order to receive power supply
Signal；And digital image signal control signal produced by this liquid crystal display signal generator, assembly of the invention comprises: inspection
Survey device, send improper power-off signal in order to respond when improper outage condition occurs；First power storage element, is arranged at this power supply
Signal be sent to this LCD monitor receive the tip path on, in order to store also can in case this power supply signal interrupt time
Discharge electric energy to this LCD monitor receiving terminal；Second power storage element, is arranged at this liquid crystal display signal
In the power supply feed lines of generator, in order to store electric energy in case when improper outage condition occurs discharge also can be to this liquid crystal
Show signal generator；Second also can memory element, be arranged at this control signal be sent to this LCD monitor receive
On the path of end, in order to store electric energy in case discharging electric energy when this control signal is interrupted and connecing to this LCD monitor
Receiving end；First signal delay component, is also connected to this detector, in order to receive this improper power-off signal and to postpone the very first time long
Export after degree；Secondary signal delay element, is electrically connected to this detector, during in order to receive this improper power-off signal and to postpone second
Between export after length；3rd signal delay component, is electrically connected to this detector, in order to receive this improper power-off signal and to postpone
Export after three time spans；First by drag switch, be also connected to this first signal delay component, this first also can memory element with
And between this LCD monitor receiving terminal, it is in response to the letter of this improper power-off after this very first time length delayed
Number triggering and switched to off state by conducting state, in order to interrupt this first power storage element release electric energy to this liquid crystal
The action of display screen monitor receiving terminal；Second controlled switch, is electrically connected to this secondary signal delay element, this second electric energy
Between memory element and this liquid crystal display signal generator, it is improper disconnected that it is in response to this after this second time span delayed
The triggering of the signal of telecommunication and switched to off state by conducting state, in order to interrupt this second also can memory element release electric energy to should
The action of liquid crystal display signal generator；And second by drag switch, it is also connected to the 3rd signal delay component, the 3rd electricity
Can be between memory element and this LCD monitor receiving terminal, after it is in response to delayed 3rd time span
The triggering of this improper power-off signal and switched to off state by conducting state, in order to interrupt the release of this second power storage element
Electric energy is to the action of this LCD monitor receiving terminal, and the magnitude relationship of above-mentioned time span is: this very first time
Length > the 3rd time span > this second time span, can complete automatically sequentially to close this digital image signal, this control
Signal and the work of this power supply signal, and then reach the power interruption protector of LCD monitor.
According to above-mentioned design, in the power interruption protector of LCD monitor, this detector is detection
Provide electrical power to DC voltage value and this LCD Panel in the power supply unit of this LCD monitor monitor
The switch key state of device, when this DC voltage value is transferred to closedown less than running voltage or switch key state by unlatching,
All it is considered as this improper outage condition to occur and send this improper power-off signal.
According to above-mentioned design, in the power interruption protector of LCD monitor, this DC voltage value is
AC/DC power supply changeover device (Adapter) exports the DC voltage value to DC conversion modules (DCIQC Module).
According to above-mentioned design, in the power interruption protector of LCD monitor, this DC voltage value is
Battery exports the DC voltage value to DC conversion modules (DC/DC Module).
According to above-mentioned design, this electric energy storage unit in the power interruption protector of LCD monitor
Part is to be connected to the electric capacity that this power supply signal is sent on the path of this LCD monitor receiving terminal.
According to above-mentioned design, this second electric energy storage in the power interruption protector of LCD monitor
Element is the electric capacity being connected in the power supply feed lines of this liquid crystal display signal generator.
According to above-mentioned design, the 3rd electric energy storage in the power interruption protector of LCD monitor
Element is to be connected to the electric capacity that this control signal is sent on the path of this LCD monitor receiving terminal.
According to above-mentioned design, this first signal delay in the power interruption protector of LCD monitor
Element, this secondary signal delay element and this secondary signal delay element are respectively with the first series resistor Rl and first
Shunt-wound capacitance Cl, the second series resistor R2 and the second shunt-wound capacitance C2, the 3rd series resistor R3 and the 3rd also connect electricity
Hold.The RC delay circuit completed, wherein Rl/Cl > R3/C3 > R2/C2.
According to above-mentioned design, in the power interruption protector of LCD monitor, this first is pulled open
Close, this second controlled switch and the 3rd controlled switch are respectively a voltage cut-out, this detector sent this not
When power-off signal is the voltage conversion signal being transferred to low state voltage by high state voltage, send after above-mentioned three RC delay circuit delays
To this first controlled switch, this second controlled switch and the 3rd is by drag switch, and then makes such voltage cut-out respectively
Sequentially transferred to open circuit by conducting.
Accompanying drawing explanation
The present invention will by drawings below and detailed description, available deeper into understanding.
Fig. 1 is that the square of LCD monitor (LCD Monitor) its signal receiving end on current market shows
It is intended to.
Fig. 2 is the circuit function block schematic diagram of present pre-ferred embodiments.
Specific embodiment
Seeing Fig. 2, it is the block schematic diagram of present pre-ferred embodiments, wherein when using AC-powered, and detection
Device 111 is that detection AC/DC power supply changeover device 1 O (Adapter) exports to DC conversion modules 11 (DC/DC Module)
DC voltage value, and when use battery 12 power time, then detection battery 12 export to this DC conversion modules 11 (DC/DC
Module) DC voltage value, it addition, this detector 111 to detect this LCD monitor switch key old the most simultaneously
State, when normally using state, detector 111 exports certain value high state and also presses signal, now in order to complete first
The RC delay circuit of signal delay component 14, secondary signal delay element 15 and secondary signal delay element 16, wherein
First shunt-wound capacitance Cl, the second shunt-wound capacitance C2 and the 3rd shunt-wound capacitance C3 complete charging and maintain high state voltage, because of
This completed with voltage cut-out and be controlled by the first signal delay component 14, secondary signal delay element 15 and
The first of 3rd signal delay component 16 will all by drag switch 19 by drag switch 18 and the 3rd by drag switch 17, second
Maintain conducting state, and with respectively with also hold first completed power storage element the 20, second power storage element 21 and
Second power storage element 22 also stores has electric energy in case the need of improper power-off are appropriate.And when alternating current have a power failure suddenly or battery oneself
Electric power is not enough, when the situation of history or the improper shutdown action of user occurs, and this unidirectional current detected by detector 111
Pressure value will be less than running voltage or switch key state is transferred to closedown by unlatching, and then detector 111 will treat it as improper disconnected
Electricity situation occurs, and then is transferred the voltage of institute's output signal to low state voltage to represent improper power-off signal by high state voltage, with
Time the first shunt-wound capacitance Cl, the second shunt-wound capacitance C2 and the 3rd shunt-wound capacitance C3 by the most respectively via Rl, R2, R3
Carry out discharging action, but first power storage element the 20, second power storage element 21 and the 3rd completed with electric capacity
The of short duration signal receiving end 23 to LCD monitor (LCD Monitor) of power storage element 22 and liquid crystal
Show that signal generator 24 is powered, to avoid three signals such as power supply signal, digital image signal, control signal drop institute simultaneously
Cause the impact to LCD monitor (LCD Monitor), at the same time, the first signal delay component 14, second
The first shunt-wound capacitance Cl, the second shunt-wound capacitance C2 in signal delay component 15 and the 3rd signal delay component 16 and
Second shunt-wound capacitance C3 proceeds by discharging action, and when the magnitude of voltage of each electric capacity is reduced to an electronegative potential, and this is first controlled
Switch the 17, second controlled switch 18 and the 3rd controlled switch 19 will be transformed into off state by conducting state, the most only
Each electric capacity, resistance value need to be adjusted such as Rl/Cl the size order of R3/C3 > R2/C2, just can control the electric discharge of each electric capacity
Speed so that digital image signal, control signal are sequentially closed with power supply signal, reaches LCD monitor (LCD
Monitor) requirement of vendor specifications, and then avoid the defect of communal technique, reach the main object of the present invention.
And assembly of the invention is be applicable to the system of any use LCD monitor (LCD Monitor),
All belonging to the configuration of this system or change, all various modifications that can be carried out by those skilled in the art, all without departing from claim model
Enclose protected content.
Claims (7)
1. for the power interruption protector of LCD monitor, be applied to LCD monitor with
Between liquid crystal display signal generator, the receiving terminal of this LCD monitor is respectively in order to receive power supply signal；And
Digital image signal control signal produced by this liquid crystal display signal generator, this device comprises: detector, in order to respond not
Improper power-off signal is sent when outage condition occurs；First power storage element, is arranged at this power supply signal and is sent to this liquid
On the path of crystal display screen monitor receiving terminal, in order to store electric energy in case discharging when this power supply signal interrupts and also can extremely should
LCD monitor receiving terminal；Second power storage element, the power supply being arranged at this liquid crystal display signal generator supplies
Answer on path, also can be in case discharging electric energy to this liquid crystal display signal generator when improper outage condition occurs in order to store；
3rd power storage element, is arranged at this control signal and is sent on the path of this LCD monitor receiving terminal, uses
With storage electric energy in case this control signal discharges electric energy to this LCD monitor receiving terminal when interrupting；First signal
Delay element, is electrically connected to this detector, in order to export after receiving this improper power-off signal and postponing very first time length；Second
Signal delay component, is electrically connected to this detector, in order to export after receiving this improper power-off signal and postponing the second time span;
3rd signal delay component, is electrically connected to this detector, after receiving this improper power-off signal and postponing the 3rd time span
Output；First controlled switch, is electrically connected to this first signal delay component, this first power storage element and this liquid crystal display
Between screen monitor receiving terminal, its respond the triggering of this improper power-off signal after this very first time length delayed and by leading
Logical state switches to off state, in order to interrupt this first power storage element release electric energy to this LCD monitor
The action of receiving terminal；Second controlled switch, is electrically connected to this secondary signal delay element, this second power storage element and is somebody's turn to do
Between liquid crystal display signal generator, its respond this improper power-off signal after this second time span delayed triggering and by
Conducting state switches to off state, produces to this liquid crystal display signal in order to interrupt this second power storage element release electric energy
The action of device；And the 3rd by drag switch, it is also connected to the 3rd signal delay component, the 3rd power storage element and should
Between LCD monitor receiving terminal, it responds touching of this improper power-off signal after delayed 3rd time span
Send out and switched to off state by conducting state, in order to interrupt the 3rd power storage element release electric energy to this LCDs
The action of curtain monitor receiving terminal, and the magnitude relationship of above-mentioned time span is: this very first time length > the 3rd time span
> this second time span, can complete automatically sequentially to close this digital image signal, this control signal and this power supply signal
Work, and then reach the function of improper power-off protection.
2., according to a kind of power interruption protector for LCD monitor described in claim l, wherein should
Detector is DC voltage value and this liquid crystal in the power supply unit detecting and providing electrical power to this LCD monitor
The switch key state of display screen monitor, when this DC voltage value is less than running voltage or switch key state by opening
When transferring closedown to, all it is considered as this improper outage condition and occurs and send this improper power-off signal.
3., according to a kind of power interruption protector for LCD monitor described in claim 2, wherein should
DC voltage value is that AC/DC power supply changeover device exports the DC voltage value to DC conversion modules.
4., according to a kind of power interruption protector for LCD monitor described in claim 2, wherein should
DC voltage value is that battery exports the DC voltage value to DC conversion modules.
5., according to a kind of power interruption protector for LCD monitor described in claim l, wherein should
First power storage element is to be connected to this power supply signal to be sent on the path of this LCD monitor receiving terminal
Electric capacity.
6., according to a kind of power interruption protector for LCD monitor described in claim 1, wherein should
Second power storage element is the electric capacity being connected in the power supply feed lines of this liquid crystal display signal generator.
7., according to a kind of power interruption protector for LCD monitor described in claim 1, wherein should
3rd power storage element is to be connected to this control signal to be sent on the path of this LCD monitor receiving terminal
Electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610425490.9A CN106097998A (en) | 2016-06-15 | 2016-06-15 | A kind of power interruption protector for LCD monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610425490.9A CN106097998A (en) | 2016-06-15 | 2016-06-15 | A kind of power interruption protector for LCD monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106097998A true CN106097998A (en) | 2016-11-09 |
Family
ID=57235239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610425490.9A Withdrawn CN106097998A (en) | 2016-06-15 | 2016-06-15 | A kind of power interruption protector for LCD monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106097998A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647533A (en) * | 2017-01-20 | 2017-05-10 | 合肥市传秀声光科技有限公司 | Intelligent big screen system |
| CN109584817A (en) * | 2018-11-16 | 2019-04-05 | 深圳市鑫洪泰电子科技有限公司 | The LCD liquid crystal display die set of display is kept after a kind of power down |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334552A (en) * | 2000-07-13 | 2002-02-06 | 伦飞电脑实业股份有限公司 | Power interruption protector for LCD monitor |
-
2016
- 2016-06-15 CN CN201610425490.9A patent/CN106097998A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334552A (en) * | 2000-07-13 | 2002-02-06 | 伦飞电脑实业股份有限公司 | Power interruption protector for LCD monitor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647533A (en) * | 2017-01-20 | 2017-05-10 | 合肥市传秀声光科技有限公司 | Intelligent big screen system |
| CN106647533B (en) * | 2017-01-20 | 2019-02-22 | 合肥市传秀科技有限公司 | A kind of intelligence large screen system |
| CN109584817A (en) * | 2018-11-16 | 2019-04-05 | 深圳市鑫洪泰电子科技有限公司 | The LCD liquid crystal display die set of display is kept after a kind of power down |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20161109 |
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| WW01 | Invention patent application withdrawn after publication |