CN103731618A - Display device and standby control circuit thereof - Google Patents
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- CN103731618A CN103731618A CN201310618726.7A CN201310618726A CN103731618A CN 103731618 A CN103731618 A CN 103731618A CN 201310618726 A CN201310618726 A CN 201310618726A CN 103731618 A CN103731618 A CN 103731618A
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Abstract
The invention provides a standby control circuit of a display device. The standby control circuit of the display device comprises a first circuit, a second circuit and a pulse-width modulation chip. The first circuit is connected with the first end of the pulse-width modulation chip, the second end of the pulse-width modulation chip is connected with a ground wire, and the first circuit is provided with a first switch component and a rectifier diode. When the first switch component is switched off, the second circuit is disconnected with the first end of the pulse-width modulation chip. In the standby control circuit of the display device, whether a phase line and a central line are connected face to face or oppositely, electric connection between the first circuit and the first end of the pulse-width modulation chip and between the second circuit and the first end of the pulse-width modulation chip are immediately eliminated after an electric supply is cut off, and therefore output voltage of the standby control circuit can be powered down immediately, the intuitive sense of a user is that an on/off indicator lamp quickly switches off, and the user can immediately judge that shutdown is successful.
Description
Technical field
The present invention relates to Display Technique field, the display device that relates in particular to a kind of display device readiness control circuit and apply this readiness control circuit.
Background technology
In prior art, most attaching plugs such as display devices such as domestic TVs are commonly two-pin plug, this two-pin plug is connected with phase line (being commonly called as live wire) and the center line (being commonly called as zero line) of civil power by insert row, in addition, on the circuit that should be connected with phase line, also dispose a single knife switch, by this single knife switch, can control the switch of display device.
Yet, because current most insert rows of China do not have fool proof (for fear of wrong plug and anti-inserted design) measure for two-phase socket, and also without any relevant, just connecing or the sign of reversal connection on attaching plug; There is like this problem of reversal connection when being very easy to cause phase line and center line access TV.
On display device power panel, be provided with basic readiness control circuit, readiness control circuit is mainly used in as display device mainboard and the power supply of switching on and shutting down indicator light, it comprises the assemblies such as rectifying component and pulse-width modulation (Pulse Width Modulation, is abbreviated as PWM) chip.Although when phase line and center line reversal connection on the normal work of display device without any impact, but for readiness control circuit, after cutting off civil power, the reversal connection of phase line and center line will affect the power down time of readiness control circuit output voltage, when the power down immediately of readiness control circuit output voltage, the power supply for display device mainboard and switching on and shutting down indicator light also can continue a bit of time accordingly, experience intuitively to user to be exactly slow that switching on and shutting down indicator light extinguishes, cannot judge whether immediately to shut down successfully; What in the readiness control circuit that this point drives at full-bridge high-voltage charging, show is particularly remarkable.
Therefore, a kind ofly can, after cutting off civil power, the technical scheme of the output voltage power down immediately of readiness control circuit urgently be provided.
Summary of the invention
For the some or all of problem in background technology, the display device that the invention provides a kind of display device readiness control circuit and apply this readiness control circuit, for realizing after cutting off civil power, the power down immediately of the output voltage of readiness control circuit.
Concrete, described display device readiness control circuit, comprises the first circuit, the second circuit and pulse width modulating chip, described the first circuit is connected to the first end of described pulse width modulating chip; The second end of described pulse width modulating chip is connected to earth connection;
On described the first circuit, be provided with the first switch element and rectifier diode; When described the first switch element turn-offs, between described the second circuit and described pulse width modulating chip first end, open circuit.
Described display device, comprises above-mentioned readiness control circuit.
From above technical scheme, in display device readiness control circuit provided by the present invention, on the first circuit, be provided with the first switch element and rectifier diode, when the first switch element turn-offs, between the first circuit nature and pulse width modulating chip first end, open circuit, now, between the second circuit and pulse width modulating chip first end, also open circuit; Like this, no matter phase line and center line are just to connect or reversal connection, after cutting off civil power, the first circuit and the second circuit all disconnect immediately with pulse width modulating chip first end between be electrically connected to, therefore the output voltage power down immediately of readiness control circuit, giving user's impression is intuitively exactly that switching on and shutting down indicator light extinguishes rapidly, can judge and shut down successfully immediately.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of display device readiness control circuit in prior art;
Fig. 2 is the structural representation of a kind of display device readiness control circuit in an embodiment of the present invention;
Fig. 3 is the structural representation of another kind of display device readiness control circuit in prior art;
Fig. 4 is the structural representation of another display device readiness control circuit in prior art;
Fig. 5 is the display device readiness control circuit voltage waveform that A is ordered when conducting single-pole single-throw switch (SPST) in Fig. 4;
Fig. 6 is the display device readiness control circuit voltage waveform that A is ordered when turn-offing single-pole single-throw switch (SPST) in Fig. 4;
Fig. 7 is the schematic equivalent circuit of display device readiness control circuit when turn-offing single-pole single-throw switch (SPST) in Fig. 4;
Fig. 8 is the structural representation of a kind of display device readiness control circuit in the another kind of embodiment of the present invention;
Fig. 9 is the schematic equivalent circuit of display device readiness control circuit when turn-offing double-pole single throw in Fig. 8;
Figure 10 is the structural representation of a kind of display device readiness control circuit in another embodiment of the present invention.
Embodiment
Embodiment mono-
Long-term practice research and comparison through inventor are observed, find display device readiness control circuit of the prior art, as shown in fig. 1, mainly comprise the first circuit, the second circuit and pulse width modulating chip, the first circuit and the second circuit are all connected to the first end of pulse width modulating chip, the second end ground connection of pulse width modulating chip, is provided with rectifier diode D on the first circuit and the second circuit; But, owing to being wherein only provided with a single-pole single-throw switch (SPST) S0 on the first circuit, if phase line and center line just connect, be that phase line is connected on the first circuit that is provided with single-pole single-throw switch (SPST) S0, after cutting off single-pole single-throw switch (SPST) S0, because center line is zero potential to the earth, therefore do not produce loop current, pulse width modulating chip is idle, and now the switching on and shutting down indicator light of television set normally extinguishes soon very much.On the contrary, if phase line and center line reversal connection, be that center line is connected on the first circuit that is provided with single-pole single-throw switch (SPST) S0, after cutting off single-pole single-throw switch (SPST) S0, because phase line is also connected on pulse width modulating chip, do not disconnect immediately, and between phase line and the earth, there is electrical potential difference, can produce loop current, therefore can cause pulse width modulating chip still to be worked a period of time, what in the readiness control circuit that this phenomenon drives at full-bridge high-voltage charging, show is particularly remarkable.
Just based on above-mentioned analysis foundation, the invention provides a kind of display device readiness control circuit, this display device readiness control circuit mainly comprises the first circuit, the second circuit and pulse width modulating chip, wherein, both can be that the first circuit is connected to phase line, the second connection be to center line, or, also can be that the first circuit is connected to center line, the second connection be to phase line, the first circuit is connected to the first end of pulse width modulating chip, the second end of pulse width modulating chip is connected to earth connection, on the first circuit, be provided with the first switch element and rectifier diode, when the first switch element conducting, by the rectified action of rectifier diode, by the current commutates by the first circuit input, it is DC pulse voltage, DC pulse voltage inputs to pulse width modulating chip, processing via pulse width modulating chip, export pulse signal that a series of amplitudes are equal to display device, thereby control the operating state of display device, and one of main distinction of the present invention and prior art is, when the first switch element turn-offs, be not only to open circuit between the first circuit and pulse width modulating chip first end, and second open circuit between circuit and pulse width modulating chip first end, like this, no matter phase line and center line are just to connect or reversal connection, due to after cutting off civil power, the first circuit and the second circuit all disconnect immediately with pulse width modulating chip first end between be electrically connected to, therefore the output voltage power down immediately of readiness control circuit, giving user's impression is intuitively exactly that switching on and shutting down indicator light extinguishes rapidly, can judge and shut down successfully immediately.
Embodiment bis-
A kind of display device readiness control circuit is provided in the present embodiment, and as shown in Figure 2, this display device readiness control circuit mainly comprises the first circuit, the second circuit and pulse width modulating chip; The first circuit is connected to the first end of pulse width modulating chip, and the second circuit is also connected to the first end of pulse width modulating chip; The second end of pulse width modulating chip is connected to earth connection; On the first circuit, be provided with the first switch element S1 and rectifier diode D, and, on the second circuit, be provided with second switch element S2 and rectifier diode D; Wherein, the first switch element S1 is synchronizeed with the action of second switch element S2, i.e. the first switch element S1 and second switch element S2 conducting simultaneously or simultaneously shutoff.
When the first switch element S1 and second switch element S2 conducting simultaneously, utilize the rectified action of rectifier diode D, by the ac voltage rectifier by the first circuit, the second circuit input, be DC pulse voltage, now, be full-wave rectification; DC pulse voltage inputs to pulse width modulating chip, via the processing of pulse width modulating chip, exports pulse signal that a series of amplitudes are equal to display device, thereby controls the operating state of display device; When the first switch element S1 and second switch element S2 turn-off simultaneously, not only between the first circuit and pulse width modulating chip first end, open circuit, and open circuit between the second circuit and pulse width modulating chip first end.
Wherein, the first switch element S1 and second switch element S2 can have multiple implementation, for example, can be throw-over switch, can be also simulation gate-controlled switches etc.; Preferably, in the present embodiment, in order to guarantee the synchronism of the first switch element S1 and second switch, the first switch element S1 and second switch element S2 form double-pole single throw, by the contact condition of static contact group on switch dual monopole single throw switch and movable contact spring group, thereby control conducting or the shutoff of the first switch element S1 and second switch element S2 simultaneously.
In addition, in the display device readiness control circuit in the present embodiment, can also comprise electronic devices and components such as Electromagnetic interference filter, current-limiting resistance; For example, can be, on the first circuit and the second circuit, be also provided with Electromagnetic interference filter, by Electromagnetic interference filter, keep noise that the inside of display device produces not to external leakage, prevent that the noise that the alternating current circuit of display device exterior produces from entering display device simultaneously; Current-limiting resistance is for limiting the amplitude of the DC pulse voltage that inputs to pulse width modulating chip, and the DC pulse voltage of avoiding inputing to pulse width modulating chip is too high; The position of Electromagnetic interference filter, rectifier diode D current-limiting resistance and the first switch element S1 and second switch element S2 can be set according to the actual requirements, for example, in the present embodiment, from the first end of pulse width modulating chip, set gradually: current-limiting resistance, rectifier diode D, the first switch element S1 and second switch element S2 and Electromagnetic interference filter; Certainly, can be also other set positions, for example, from the first end of pulse width modulating chip, set gradually: rectifier diode D, current-limiting resistance, Electromagnetic interference filter and the first switch element S1 and second switch element S2 etc.
In the present embodiment, the pulse width modulating chip of take describes as FSB127H microchip as example; Therefore FSB127H microchip has can significantly reduce the advantages such as stand-by power consumption and non-loaded power consumption, is suitable for very much in display device readiness control circuit that the present embodiment provides; Be understandable that, if for such as the consideration such as reducing costs, also can adopt the pulse width modulating chip of other types, at this, do not do particular determination.
In prior art, apply a kind of circuit of above-mentioned FSB127H microchip as shown in Figure 3.In this circuit, the first circuit is respectively used to be connected with center line with phase line with the second circuit, the ac commercial power voltage of being exported by phase line and center line is after Electromagnetic interference filter filtering, by rectifier diode D and current-limiting resistance R, be connected to respectively the HV end (being above-mentioned first end) of FSB127H microchip, thereby give the capacitor C DD charging of FSB127H microchip vdd terminal, GND end (being above-mentioned the second end) ground connection of FSB127H microchip; As shown in Figure 4 in display device readiness control circuit, show FSB127H microchip internal structure, when the capacitance voltage of vdd terminal reaches after cut-in voltage, FSB127H microchip is inner can turn-off the charge circuit to vdd terminal, and continuing power supply by the auxiliary winding in outside, FSB127H microchip normally starts.
In Fig. 4, during conducting single-pole single-throw switch (SPST) S0, theory analysis show that the voltage waveform that in Fig. 5, A is ordered is the voltage waveform of line voltage after full-wave rectification; Now, the average voltage after rectification is:
Wherein, V
aCrepresent alternating voltage.
When phase line and center line reversal connection, turn-off after single-pole single-throw switch (SPST) S0, the disconnecting that center line and FSB127H microchip HV hold, the HV that phase line is still connected to FSB127H microchip by rectifier diode D holds; The voltage waveform that now A is ordered as shown in Figure 6, calculates average voltage and is:
Now there is voltage; And can charge to capacitor C Y by moving towards as shown in Figure 7 to form electric current, after charging is full of, capacitor C Y disconnects, and loop also disconnects, and now FSB127H microchip quits work, and switching on and shutting down indicator light extinguishes; Can find out that it is exactly the time to capacitor C Y charging that switching on and shutting down indicator light extends the time of extinguishing.
In contrast thereto, when the technical scheme providing is provided in employing, the display device readiness control circuit obtaining as shown in Figure 8, equivalent circuit diagram when turn-offing double-pole single throw as shown in Figure 9, can obviously find out, turn-off after double-pole single throw (being equivalent to simultaneously turn-off the first switch element S1 and second switch element S2), the disconnecting of center line and FSB127H microchip HV end, phase line was interrupted with being connected also of FSB127H microchip HV end simultaneously, can not form loop current charges to capacitor C Y, be that FSB127H microchip can quit work immediately, switching on and shutting down indicator light can extinguish immediately.
In the display device readiness control circuit providing in the present embodiment, no matter phase line and center line are just to connect or reversal connection, after cutting off civil power, and the power down immediately of the output voltage of readiness control circuit; And, realize cost very low, for example, only need the single-pole single-throw switch (SPST) S0 in display device readiness control circuit in prior art to replace with double-pole single throw, there is very strong practicality.
Embodiment tri-
A kind of display device readiness control circuit is provided in the present embodiment, and this display device readiness control circuit mainly comprises the first circuit, the second circuit and pulse width modulating chip; The first circuit is connected to the first end of pulse width modulating chip, and the second end of pulse width modulating chip is connected to earth connection; On the first circuit, be provided with the first switch element and rectifier diode; Be with the main distinction of embodiment mono-, in the present embodiment, between the second circuit and the first end of pulse width modulating chip, open circuit all the time; In the present embodiment, the display device readiness control circuit of applying FSB127H microchip in embodiment bis-of still take describes as example, as shown in Figure 10.
During conducting the first switch element S1, owing to only there being a rectifier diode D, therefore, can only export the HV end (being above-mentioned first end) that DC-pulse after halfwave rectifier is depressed into FSB127H microchip, thereby give the capacitor C DD charging of FSB127H microchip vdd terminal, than the DC pulse voltage after the full-wave rectification in embodiment bis-, owing to being that to lose half alternating current be the rectification effect that cost exchanges for, current utilization rate is relatively low, therefore the average voltage of capacitor C DD charging is reduced, cause start-up time slack-off, but the time delaying is that millisecond rank is at all imperceptible for TV user.
Turn-off after the first switch element S1, even phase line and center line reversal connection, be that center line is connected on the first circuit that is provided with the first switch element S1, phase line also can not form loop current by FSB127H microchip and charge to capacitor C Y, be that FSB127H microchip can quit work immediately, while so just having avoided user to use, there is closing swap switch, the problem that switching on and shutting down indicator light just extinguishes for a long time.
In the display device readiness control circuit providing in the present embodiment, except above-mentioned device and annexation, all the other devices such as current-limiting resistance, Electromagnetic interference filter etc. can be identical with relevant portion in embodiment bis-, also can set separately.
Than the display device readiness control circuit in embodiment bis-, although the display device readiness control circuit in the present embodiment is slower start-up time, because the time delaying is for a millisecond rank, at all imperceptible for TV user; And the display device readiness control circuit in the present embodiment, without increasing new electronic devices and components, is realized cost relatively lower; In addition, because the volume of double-pole single throw in embodiment bis-is larger, so the display device readiness control circuit in the present embodiment can also avoid the problem that occurs that space hold is larger, so practicality is stronger.
Embodiment tetra-
A kind of display device is provided in the present embodiment, and this display device comprises any one readiness control circuit that embodiment mono-to embodiment tri-provides; In addition, also comprise the display floater that is connected with readiness control circuit and peripheral circuit etc.; This display device can be liquid crystal display, plasma display panel device, OLED(Organic Light-Emitting Diode, Organic Light Emitting Diode) display device etc.Due in this display device, no matter phase line and center line are just to connect or reversal connection, after cutting off civil power, the power down immediately of the output voltage of readiness control circuit, therefore, giving user's impression is intuitively exactly that switching on and shutting down indicator light extinguishes rapidly, and can judge and shut down successfully immediately, thus the demand of being more close to the users.
These are only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (10)
1. a display device readiness control circuit, comprises the first circuit, the second circuit and pulse width modulating chip, and described the first circuit is connected to the first end of described pulse width modulating chip; The second end of described pulse width modulating chip is connected to earth connection; It is characterized in that:
On described the first circuit, be provided with the first switch element and rectifier diode; When described the first switch element turn-offs, between described the second circuit and described pulse width modulating chip first end, open circuit.
2. readiness control circuit according to claim 1, is characterized in that, described the first circuit is connected to phase line, and the second connection is to center line; Or described the first circuit is connected to center line, the second connection is to phase line.
3. readiness control circuit according to claim 1, is characterized in that, described rectifier diode is arranged between described the first switch element and the first end of pulse width modulating chip.
4. according to the readiness control circuit described in claim 1-3 any one, it is characterized in that, described the second connection is to the first end of described pulse width modulating chip, is provided with described the first switch element and moves second switch element and the rectifier diode of synchronizeing on described the second circuit.
5. readiness control circuit according to claim 4, is characterized in that, described the first switch element and second switch element form double-pole single throw.
6. readiness control circuit according to claim 4, is characterized in that, the first end of described pulse width modulating chip is provided with current-limiting resistance; Described the first circuit and the second link tester are crossed the first end that described current-limiting resistance is connected to described pulse width modulating chip.
7. according to the readiness control circuit described in claim 1-3 any one, it is characterized in that, between described the second circuit and the first end of described pulse width modulating chip, open circuit.
8. readiness control circuit according to claim 1, is characterized in that, on described the first circuit and the second circuit, is also provided with Electromagnetic interference filter.
9. according to the readiness control circuit described in claim 1-3,5-6 or 8 any one, it is characterized in that, described pulse width modulating chip is FSB127H microchip.
10. a display device, is characterized in that, comprises according to the readiness control circuit described in claim 1-9 any one.
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| CN201310618726.7A CN103731618B (en) | 2013-11-27 | 2013-11-27 | Display device and its readiness control circuit |
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| CN201310618726.7A CN103731618B (en) | 2013-11-27 | 2013-11-27 | Display device and its readiness control circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105959600A (en) * | 2016-06-29 | 2016-09-21 | 重庆惠科金扬科技有限公司 | Circuit capable of quickly turning off TV indicator lamp after power off, and television |
| WO2020062905A1 (en) * | 2018-09-25 | 2020-04-02 | 青岛海信电器股份有限公司 | Oled display device and control method therefor |
| US11200837B2 (en) | 2018-09-25 | 2021-12-14 | Hisense Visual Technology Co., Ltd. | OLED display device, and method for controlling the OLED display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004088829A1 (en) * | 2003-03-28 | 2004-10-14 | Sony Corporation | Switching power supply apparatus |
| CN2653670Y (en) * | 2003-09-26 | 2004-11-03 | 杨家明 | Double knife switch |
| CN201075823Y (en) * | 2007-08-15 | 2008-06-18 | 李世煌 | Compensation type switch power source |
| CN101232191A (en) * | 2007-12-14 | 2008-07-30 | 艾默生网络能源有限公司 | Uninterruptible power supply |
| CN101976107A (en) * | 2010-11-19 | 2011-02-16 | 东莞市金河田实业有限公司 | Power supply of zero-standby power consumption computer |
| CN203590331U (en) * | 2013-11-27 | 2014-05-07 | 乐视致新电子科技（天津）有限公司 | Display equipment and standby control circuit thereof |
-
2013
- 2013-11-27 CN CN201310618726.7A patent/CN103731618B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004088829A1 (en) * | 2003-03-28 | 2004-10-14 | Sony Corporation | Switching power supply apparatus |
| CN2653670Y (en) * | 2003-09-26 | 2004-11-03 | 杨家明 | Double knife switch |
| CN201075823Y (en) * | 2007-08-15 | 2008-06-18 | 李世煌 | Compensation type switch power source |
| CN101232191A (en) * | 2007-12-14 | 2008-07-30 | 艾默生网络能源有限公司 | Uninterruptible power supply |
| CN101976107A (en) * | 2010-11-19 | 2011-02-16 | 东莞市金河田实业有限公司 | Power supply of zero-standby power consumption computer |
| CN203590331U (en) * | 2013-11-27 | 2014-05-07 | 乐视致新电子科技（天津）有限公司 | Display equipment and standby control circuit thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105959600A (en) * | 2016-06-29 | 2016-09-21 | 重庆惠科金扬科技有限公司 | Circuit capable of quickly turning off TV indicator lamp after power off, and television |
| CN105959600B (en) * | 2016-06-29 | 2023-04-07 | 重庆惠科金扬科技有限公司 | Circuit for quickly turning off TV indicator lamp after power failure and television |
| WO2020062905A1 (en) * | 2018-09-25 | 2020-04-02 | 青岛海信电器股份有限公司 | Oled display device and control method therefor |
| US11200837B2 (en) | 2018-09-25 | 2021-12-14 | Hisense Visual Technology Co., Ltd. | OLED display device, and method for controlling the OLED display device |
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| CN103731618B (en) | 2017-12-12 |
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Address after: Room 301-1, Room 301-3, Area B2, Animation Building, No. 126 Animation Road, Zhongxin Eco-city, Tianjin Binhai New Area, Tianjin Patentee after: LE SHI ZHI XIN ELECTRONIC TECHNOLOGY (TIANJIN) Ltd. Address before: 300453 Tianjin Binhai New Area, Tianjin Eco-city, No. 126 Animation and Animation Center Road, Area B1, Second Floor 201-427 Patentee before: Xinle Visual Intelligent Electronic Technology (Tianjin) Co.,Ltd. Address after: 300453 Tianjin Binhai New Area, Tianjin Eco-city, No. 126 Animation and Animation Center Road, Area B1, Second Floor 201-427 Patentee after: Xinle Visual Intelligent Electronic Technology (Tianjin) Co.,Ltd. Address before: 300467 Tianjin Binhai New Area, ecological city, animation Middle Road, building, No. two, B1 District, 201-427 Patentee before: LE SHI ZHI XIN ELECTRONIC TECHNOLOGY (TIANJIN) Ltd. |
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