CN102866769A - Display terminal - Google Patents
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- CN102866769A CN102866769A CN2012103171544A CN201210317154A CN102866769A CN 102866769 A CN102866769 A CN 102866769A CN 2012103171544 A CN2012103171544 A CN 2012103171544A CN 201210317154 A CN201210317154 A CN 201210317154A CN 102866769 A CN102866769 A CN 102866769A
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Abstract
The invention discloses a display terminal. The display terminal comprises a main power supply module, a display terminal mainboard and a power control module, wherein the main power supply module is respectively connected with an external power supply and the display terminal mainboard, and is used for converting the voltage output by the external power supply into the working voltage of the display terminal mainboard during power-on work; the display terminal mainboard is connected with an external computer; and the power control module is respectively connected with the external power supply, a touch switch module and the man power supply module. When the display terminal disclosed by the invention is standby, the display terminal mainboard can be shut down thoroughly; the display terminal mainboard does not work completely; and only working power is required to be provided for the touch switch module. Therefore, by the display terminal, the power consumption when the display terminal is standby can be saved effectively, and energy resources are saved, so that daily economic spending of a user is reduced, the product use feeling of the display terminal user is enhanced, convenience is brought to the work and the life of the user, and the display module has great production practice significance.
Description
Technical field
The present invention relates to technical field of electric appliances, particularly relate to a kind of display terminal.
Background technology
Along with the development of China's science and technology, the domestic electric appliances such as display, projector, all-in-one, computing machine, televisor, video camera, camera are more and more universal in people's daily life, become people's indispensable ingredient of living.
Display for present use touch control type switch, under holding state, the several functions parts such as display screen will have been closed, and just allow display main board be in charged duty always, whether touched touch switch with real-time detection user, guarantee when the user has inputted the normal boot-strap signal by touch switch, can in time display be switched to normal operating conditions from holding state, guarantee that the user normally uses display.At this moment, because display main board still is in charged duty when the display standby always, therefore, display is under the holding state for a long time, still can consume more electric energy, the energy of serious waste preciousness, thus user's daily economic expenditure increased, and the product that has reduced display user uses impression.
Therefore, in the urgent need to developing a kind of technology, it can effectively save the power consumption of display when standby at present, energy savings, thereby daily economic expenditure of reducing the user, and the product that strengthens display user uses impression.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of display terminal, it is the charged duty of control display terminal mainboard automatically, can effectively save the power consumption of display terminal when standby, energy savings, thereby daily economic expenditure of reducing the user, the product that strengthens the display terminal user uses impression, offer convenience for user's work and life, be of great practical significance.
For this reason, the invention provides a kind of display terminal, comprising:
Main power source module is connected with external power source, display terminal mainboard respectively, is used for when energising work, with the voltage transitions of the external power source output operating voltage to the display terminal mainboard;
The display terminal mainboard, be connected with outer computer, be used for when energising work, send the normal power supply signal to the energising control module, and when the off signal of receiving outer computer output or standby signal, stop to send the normal power supply signal, and send the signal of stopping power supply to the energising control module;
The touch switch module is used for the real-time touching signals that receives and detect outside input, when described touching signals is the normal operation signal, sends the normal power supply signal to the energising control module; And when described touching signals is standby signal, send the signal of stopping power supply to the energising control module;
The energising control module, be connected with external power source, touch switch module, main power source module respectively, the voltage transitions that is used for external power source is exported is to the needed operating voltage of touch switch module, for the touch switch module provides the work electricity consumption, and when receiving the normal power supply signal that touch switch module or display terminal mainboard send, external power source and main power source module are conducted, drive the normal operation of display terminal mainboard by main power source module; And when signal is stopped power supply in the transmission of receiving the transmission of touch switch module or display terminal mainboard, external power source and main power source module are disconnected, display terminal enters holding state.
Wherein, described energising control module includes relay and stand-by circuit, wherein:
Described relay, be connected with external power source, touch switch module, main power source module respectively, be used for when receiving the normal power supply signal that touch switch module or display terminal mainboard send, energising is closed, external power source and display terminal mainboard are conducted, open the operation main power source module, drive the normal operation of display terminal mainboard by main power source module; And when the signal of stopping power supply of receiving that touch switch module or display terminal mainboard send, external power source and display terminal mainboard are disconnected, main power source module out of service, main power source module stop to drive the work of display terminal mainboard;
Voltage conversion circuit is connected with external power source, touch switch module respectively, and the voltage transitions that is used for external power source is exported is to the needed operating voltage of touch switch module, for the touch switch module provides the work electricity consumption.
Wherein, the live wire input end e of described voltage conversion circuit meets current protection device F1, F2 successively, node between described current protection device F1 and the F2 and the voltage input end g of relay T join, and the voltage output end h of described relay T is connected with the live wire input end b of main power source module; Described current protection device F2 meets the zero line input end a of external power source S and described main power source module successively;
The zero line input end a of the zero line input end d of described voltage conversion circuit and described main power source module joins, and the voltage output end c of described main power source module is connected with the voltage input end of display terminal mainboard;
The voltage output end f of described voltage conversion circuit is connected with the end of touch switch K, and the other end of described touch switch K joins with the coil control end i of signal output part J, the relay T of display terminal mainboard respectively.
Wherein, described over-current protection device is fuse.
Wherein, described touch switch is that electric capacity refers to touch switch and/or conducting film pressure-sensitive switch.
Wherein, described voltage conversion circuit includes a standby power integrated circuit (IC) 1 and a transformer T1, one end of the primary voltage input end of described transformer T1 joins with rectification circuit one end, filtering circuit one end respectively, the other end of the primary voltage input end of described transformer T1 and the drain lead D of described IC1 join, and the source lead S of described IC1 connects respectively the other end of described rectification circuit, the other end of filtering circuit;
The feedback pin FB of described IC1 is connecting resistance R3 and R4 respectively, is parallel with a capacitor C 4 on the described resistance R 4, and the secondary voltage output terminal L3 of described R3 and transformer T1 joins, and the source lead S of described R4 and described IC1 joins;
The energization pins BP of described IC2 joins with capacitor C 3, resistance R 2 respectively, and the negative electrode of described resistance R 2 and diode D5 joins, and secondary voltage output terminal L3, a capacitor C 5 of the anode of described diode D5 and transformer T1 are joined;
The secondary voltage output terminal L3 of described transformer T1 and the negative electrode of a diode D6 join, and the anode of described diode D6 connects respectively the source S of capacitor C 5, resistance R 4, capacitor C 4 and C3 and IC1.
The secondary voltage output terminal L2 of described transformer T1 and the anode of a voltage stabilizing diode D7 join, and the negative electrode of described voltage stabilizing diode D7 connects respectively the anode of capacitor C 7 and diode D8, the negative electrode contact control K switch of described diode D8.
Described touch switch K is connecting resistance R5, the negative electrode of diode D9 and the signal output part J of display terminal mainboard respectively, described resistance R 4 and relay T, and described relay T connects main power source module; The voltage input end of the voltage output end of described main power source module and described display terminal mainboard joins.
Wherein, described rectification circuit includes diode D1, D2, D3, D4, and the series arm that described diode D1 and D3 form is in parallel with the series arm that diode D2 and D4 form.
Wherein, described filtering circuit includes capacitor C 1, C2 and resistance R 1, inductance L 1, and described resistance R 1 and inductance L 1 form parallel circuit, and an end and the capacitor C 1 of this parallel circuit are joined, and the other end and capacitor C 2 are joined.
By above technical scheme provided by the invention as seen, compared with prior art, the invention provides a kind of display terminal, it can be according to the duty (outer computer output off signal or standby signal) of touching signals and the outer computer of outside input, automatically control and open or close main power source module, thereby the display terminal mainboard is opened or closed to control whether, when the touching signals of receiving is standby signal or when being off signal and standby signal from the signal of outer computer, enter holding state, operation display terminal mainboard is closed in control, automatically stop the display terminal main board power supply, therefore it is when standby, the display terminal mainboard is not worked fully, only need to provide the work electricity consumption for the touch switch module, thereby can close up hill and dale the display terminal mainboard, therefore, the present invention compared with prior art, can effectively save the power consumption of display terminal when standby, energy savings, thereby reduce user's daily economic expenditure, the product that strengthens the display terminal user uses impression, offers convenience for user's work and life, is of great practical significance.
In addition, for display terminal provided by the invention, when outer computer shuts down, export off signal to the display terminal mainboard by outer computer, the display terminal mainboard sends the signal of stopping power supply to the energising control module, the energising control module will control being connected between main power source module disconnection display terminal mainboard and the external power source, the display terminal mainboard is powered stopping, thereby finally realize the automatic circuit break function of display terminal, so that display terminal integral body is without power consumption, further energy savings effectively.
Description of drawings
Fig. 1 is the syndeton simplified schematic diagram of a kind of display terminal provided by the invention and outer computer;
Fig. 2 is the structural representation of a kind of display terminal provided by the invention and outer computer specific embodiment;
Fig. 3 is the concrete syndeton synoptic diagram of a kind of display terminal provided by the invention and outer computer specific embodiment;
Fig. 4 is the circuit diagram of a kind of display terminal provided by the invention.
Embodiment
In order to make those skilled in the art person understand better the present invention program, the present invention is described in further detail below in conjunction with drawings and embodiments.
Referring to Fig. 1, the invention provides a kind of display terminal, include main power source module 101, display terminal mainboard 102, touch switch module 103 and energising control module 104, wherein:
Main power source module 101, respectively with the external power source S(domestic power supply of 220V for example), the display terminal mainboard is connected, be used for when energising work, with the voltage transitions of the external power source output operating voltage to the display terminal mainboard, drive the operation of display terminal mainboard;
Energising control module 104, be connected with external power source, touch switch module, main power source module respectively, the voltage transitions that is used for external power source is exported is to the needed operating voltage of touch switch module, for the touch switch module provides the work electricity consumption, and when receiving the normal power supply signal that touch switch module or display terminal mainboard send, external power source and main power source module are conducted, thereby drive the normal operation of display terminal mainboard by main power source module; And when stopping power supply during signal of receiving that touch switch module or display terminal mainboard send, external power source and main power source module are disconnected, moving the display terminal mainboard thereby close, display terminal enters holding state.
Therefore, display terminal provided by the invention, can be according to the duty (outer computer output off signal or standby signal) of touching signals and the outer computer of outside input, automatically control and open or close main power source module, thereby the display terminal mainboard is opened or closed to control whether, when the touching signals of receiving is standby signal or when being off signal and standby signal from the signal of outer computer, enter holding state, operation display terminal mainboard is closed in control, automatically stop the display terminal main board power supply, therefore, the present invention can realize very little stand-by power consumption compared with prior art, need not to drive the display terminal mainboard, the display terminal mainboard quits work when standby, the present invention just expends a small amount of electric energy and drives the touch switch module, whether has inputted touching signals to detect the user, when guaranteeing to receive the normal operation signal that the user inputs, can in time open the display terminal mainboard, realize menu display function.The experiment proved that the power consumption of display terminal of the present invention when standby can maintain below the 4mw.In view of according to the IEC of International Electrotechnical Commission standard code: the stand-by power consumption of display terminal is regarded as 0w below 5mw, therefore, display terminal of the present invention is the display terminal of 0 watt of a stand-by power consumption, the present invention can effectively save the power consumption of display terminal when standby, energy savings, thereby daily economic expenditure of reducing the user, the product that strengthens the display terminal user uses impression, offer convenience for user's work and life, be of great practical significance.
In the present invention, described display terminal can comprise any devices with menu display function such as display, projector and all-in-one.Described outer computer can comprise various types of computing machines such as existing desktop computer, notebook computer, palm PC and panel computer.
In the present invention, on the specific implementation, described main power source module 101 can be a power IC IC on the display terminal.
In the present invention, on the specific implementation, described touch switch module 103 comprises that electric capacity refers to touch switch, conducting film pressure-sensitive switch and other various types of touch switches, on the specific implementation, can only be a common touch switch logical circuit.
Need to prove that as shown in Figure 2, in the present invention, described energising control module 104 includes relay T and stand-by circuit, wherein:
Described relay T, be connected with external power source, touch switch module, main power source module respectively, be used for when receiving the normal power supply signal (such as a high level signal) that touch switch module or display terminal mainboard send, energising is closed, external power source and display terminal mainboard are conducted, open the operation main power source module, thereby drive the normal operation of display terminal mainboard by main power source module; And when the signal of stopping power supply of receiving that touch switch module or display terminal mainboard send, external power source and display terminal mainboard are disconnected, main power source module out of service, thus main power source module stops to drive the work of display terminal mainboard;
Voltage conversion circuit is connected with external power source, touch switch module respectively, and the voltage transitions that is used for external power source is exported is to the needed operating voltage of touch switch module, for the touch switch module provides the work electricity consumption.
On the specific implementation, referring to Fig. 3, described energising control module 104 comprises a voltage conversion circuit and a relay T, and described touch switch module is a touch switch K.
Described referring to Fig. 3, the live wire input end e of described voltage conversion circuit meets fuse F1, F2 successively, node between described fuse F1 and the F2 and the voltage input end g of relay T join, and the voltage output end h of described relay T is connected with the live wire input end b of main power source module; Described fuse F2 connects the 110V that external power source S(is specifically as follows outside input ~ 220V AC power successively) and the zero line input end a of described main power source module;
The zero line input end a of the zero line input end d of described voltage conversion circuit and described main power source module joins, and the voltage output end c of described main power source module is connected with the voltage input end of display terminal mainboard;
The voltage output end f of described voltage conversion circuit is connected with the end of touch switch K, and the other end of described touch switch K joins with the coil control end i of signal output part J, the relay T of display terminal mainboard respectively.
In the present invention, when display terminal is in holding state, if the user wants normally to start display terminal, the user presses touch switch so, after touch switch is pressed by the user, the voltage that voltage conversion circuit is exported will be so that the coil control end i conducting of relay T makes relay T closed (being that voltage input end g and voltage output end h are connected) under electromagnetic action, and main power source module is started working.After main power source module work, display terminal mainboard energising work will be exported normal power supply signal (for example being the control signal of a high level) to the relay T in the energising control module, so that relay T continues to remain closed connection, even at this moment touch switch K user no longer presses, relay T still keeps "on" position, thereby main power source module still can work, and display terminal is in normal operating conditions.
Need to prove, when display terminal is in normal operating conditions, the user does not press touch switch, voltage conversion circuit will not have load, voltage conversion circuit enters into standby mode, main power source module normal operation this moment, to the display terminal main board power supply, whole display terminal normally carries out data and shows.
When the outer computer that display terminal is connected as the user carries out power-off operation, the display terminal mainboard receives the off signal of outer computer output, the display terminal mainboard is stopped power supply signal to relay T with transmission so, relay T will disconnect, power and quit work so that main power source module and external power source disconnect, thereby the display terminal mainboard loses power supply also to quit work, simultaneously, because touch switch is operation not, voltage conversion circuit remains on standby mode.This moment, display terminal of the present invention entered holding state, and therefore, the present invention can be when shutting down computer main frame, need not the user and initiatively close display terminal, can automatically enter into the holding state pattern, exempt user's switch display terminal operation, improve the convenience that the user uses.
Need to prove, when display terminal is in the stand-by operation state, just voltage conversion circuit remains on standby mode, main power source module and display terminal mainboard are not worked, touch switch also is in the state of flicking because there not being external pressing, just have a small amount of power consumption of voltage conversion circuit under holding state.
In the present invention, need to prove that for described main power source module, existing various types of display terminal power supplys all can use.For main power source module, a end is the zero line side of external power source input, and the b end is the live wire end of external power source input; The c end is voltage output end, is used for the needed operating voltage of output display terminal mainboard.The voltage input and output side that a, b, three ports of c are main power source module, only when normal operation, work, when the display terminal standby, because relay T disconnects, therefore, described main power source module zero line input end b is without input, zero line input end a can't form the loop, then main power source module quits work, and voltage output end c stops output voltage, so main power source module power consumption not.Relay T only behind series connection fuse F2, when the main power source module short circuit, plays the effect that disconnecting circuit is protected to main power source module.
In the present invention, for described voltage conversion circuit, the d end is the zero line side of external power source input, and the e end is the live wire end of external power source input, and f is the voltage output end of voltage conversion circuit.The voltage input and output side that d, e, these three ports of f are voltage conversion circuit all works when standby and normal operation.The d end is the input end of external power source with the e end, as long as there is input the outside, these two ports at any time equal conducting form the loop, then voltage conversion circuit is always in running order, the f end keeps Voltage-output, after touch switch K is pressed, f end output voltage is so that relay T is closed, main power source module work after the relay T closure, then display terminal mainboard work, the normal power supply signal of display terminal mainboard output high level are to relay T, so that relay T continues the closed conducting that keeps, this moment, user's finger left touch switch K, and relay T continues to keep conducting under the control of the normal power supply signal of display terminal mainboard.When the user needs standby, can be by the standby signal of display terminal mainboard output low level (for example 0V) or off signal to relay T, so that the closing end contact of relay T (being voltage input end g and voltage output end h) separates, main power source module is closed, and the display terminal mainboard also quits work.
In the present invention, need to prove also that described external power source S can be the 110V of outside input ~ 220V AC power, fuse F1 and F2 play excess current safeguard protection effect, be specially: fuse F2 fuses when the main power source module short circuit, and circuit disconnects like this, prevents security incident; Fuse F1 fuses when the short circuit of standby power integrated circuit (IC), and circuit disconnects like this, prevents security incident.
In view of in the present invention, the overcurrent protection effect that act as that described fuse F1 and F2 play in circuit, on the specific implementation, fuse can also be replaced by other over-current protection device.
Need to prove, referring to Fig. 2, shown in Figure 3, for display terminal provided by the invention, when display terminal works, when the touching signals of namely receiving when the touch switch module was the normal operation signal, the touch switch module sent the normal power supply signal to the energising control module, started the operation main power source module by the triggering of energising control module, thereby external power source and display terminal mainboard are conducted, for the display terminal mainboard provides operating voltage.Be specially: after the touch switch module is pressed, voltage conversion circuit output voltage in the energising control module is to relay T, thereby relay T is closed, thereby open the operation main power source module, main power source module works and provides the work electricity consumption to the display terminal mainboard, the backward relay T output of display terminal mainboard normal power supply signal, guard relay is in closed on-state, thus display terminal still can work after touch switch is upspring.Therefore, the display terminal complete machine can normally show, be in normal operating conditions.
In addition, when the user carries out outer computer is carried out power-off operation, when at this moment needing display terminal to enter standby mode, outer computer is to display terminal mainboard output off signal, the display terminal mainboard can be transmitted off signal to the touch switch module so, the touch switch module is after receiving off signal, transmission is stopped power supply signal to relay T, relay T is disconnected, so main power source module out of service, thereby external power source and display terminal mainboard are disconnected, the display terminal mainboard is stopped power supply, no longer work, display terminal has entered holding state.
After display terminal has entered holding state, for the present invention, main power source module is turn-offed, the display terminal mainboard is stopped power supply and is no longer worked, only be that voltage conversion circuit need to keep the stand-by operation state this moment, continued only to provide the work electricity consumption for these parts of touch switch module by voltage conversion circuit, therefore, display terminal of the present invention can change prior art is still given the display terminal main board power supply when standby mode, can thoroughly close the display terminal mainboard, do not have load so that voltage conversion circuit just for these parts of touch switch module provide the work electricity consumption, is not started shooting when working, can realize extremely low power consumption.The experiment proved that, the voltage conversion circuit 4mW stand-by power consumption of only need to having an appointment, according to the IEC of International Electrotechnical Commission standard code: the stand-by power consumption of display terminal is regarded as 0w below 5mv, therefore, display terminal of the present invention can be described as the display terminal of 0 watt of a stand-by power consumption, it can effectively save the power consumption of display terminal when standby, energy savings.
Referring to Fig. 4, on the specific implementation, for display terminal provided by the invention, described voltage conversion circuit includes a standby power integrated circuit (IC) 1 and a transformer T1, one end of the primary voltage input end of described transformer T1 joins with rectification circuit one end, filtering circuit one end respectively, the other end of the primary voltage input end of described transformer T1 and the drain lead D of described IC1 join, and the source lead S of described IC1 connects respectively the other end of described rectification circuit, the other end of filtering circuit;
The feedback pin FB of described IC1 is connecting resistance R3 and R4 respectively, is parallel with a capacitor C 4 on the described resistance R 4, and the secondary voltage output terminal L3 of described R3 and transformer T1 joins, and the source lead S of described R4 and described IC1 joins;
The energization pins BP of described IC2 joins with capacitor C 3, resistance R 2 respectively, and the negative electrode of described resistance R 2 and diode D5 joins, and secondary voltage output terminal L3, a capacitor C 5 of the anode of described diode D5 and transformer T1 are joined;
The secondary voltage output terminal L3 of described transformer T1 and the negative electrode of a diode D6 join, and the anode of described diode D6 connects respectively the source S of capacitor C 5, resistance R 4, capacitor C 4 and C3 and IC1.
The secondary voltage output terminal L2 of described transformer T1 and the anode of a voltage stabilizing diode D7 join, the negative electrode of described voltage stabilizing diode D7 connects respectively the anode of capacitor C 7 and diode D8, the negative electrode of described diode D8 is the voltage output end f of described voltage conversion circuit, the negative electrode contact control K switch of described diode D8.
Described touch switch K is connecting resistance R5, the negative electrode of diode D9 and the signal output part J of display terminal mainboard respectively, described resistance R 4 and relay T, and described relay T connects main power source module; The voltage input end of the voltage output end of described main power source module and described display terminal mainboard joins.
Referring to Fig. 4, described rectification circuit includes diode D1, D2, D3, D4, and the series arm that described diode D1 and D3 form is in parallel with the series arm that diode D2 and D4 form; Node between described diode D1 and the D3 is the live wire end e of described voltage conversion circuit, and the node between described diode D2 and the D4 is the zero line side d of described voltage conversion circuit.
Described filtering circuit includes capacitor C 1, C2 and resistance R 1, inductance L 1, and described resistance R 1 and inductance L 1 form parallel circuit, and an end and the capacitor C 1 of this parallel circuit are joined, and the other end and capacitor C 2 are joined.
Referring to Fig. 4, be provided with insurance resistance wire RF1 between the live wire end e of described voltage conversion circuit and the zero line output terminal of external power source.As previously mentioned, insurance resistance wire RF1 plays excess current safeguard protection effect, fuses when the voltage conversion circuit short circuit, and circuit disconnects like this, prevents security incident.
Need to prove that described capacitor C 1, C2, resistance R 1, inductance L 1 form π type filtering circuit together, disturb and energy storage in order to eliminate; IC1 is standby IC, the work of control stand-by circuit; Diode D5, resistance R 2, C3, C5, D6 are feed circuit, are the IC1 power supply; Form feedback circuit by resistance R 3, R4, C4, to inform the state of IC1 load; Transformer T1 plays the isolation transformer action; Diode D7, C7 are secondary output filtering rectification circuit; D8 and D9 play the blocking-up function of current in the other direction, avoid interfering with each other; K is touch switch, uses when the subscriber switch machine; Relay T can make elementary high-voltage alternating loop secondary when passing to low pressure, realizes conducting, thus the duty of control main power source module; R5 is as current-limiting resistance, the excessive damage of electric current during for the protection of relay T conducting; Main power source module provides operating voltage (15V as shown and 5V) for the display terminal mainboard in normal operation after conducting; The display terminal mainboard is when the off signal of receiving outer computer output or standby signal, stop to send the normal power supply signal to the energising control module, thereby by the energising control module external power source and main power source module are disconnected, thereby close operation display terminal mainboard, display terminal enters holding state.
In sum, compared with prior art, the invention provides a kind of display terminal, it can be according to the duty (outer computer output off signal or standby signal) of touching signals and the outer computer of outside input, automatically control and open or close main power source module, thereby the display terminal mainboard is opened or closed to control whether, when the touching signals of receiving is standby signal or when being off signal and standby signal from the signal of outer computer, enter holding state, operation display terminal mainboard is closed in control, automatically stop the display terminal main board power supply, therefore it is when standby, the display terminal mainboard is not worked fully, only need to provide the work electricity consumption for the touch switch module, thereby can close up hill and dale the display terminal mainboard, therefore, the present invention compared with prior art, can effectively save the power consumption of display terminal when standby, energy savings, thereby reduce user's daily economic expenditure, the product that strengthens the display terminal user uses impression, offers convenience for user's work and life, is of great practical significance.
In addition, for display terminal provided by the invention, when outer computer shuts down, export off signal to the display terminal mainboard by outer computer, the display terminal mainboard sends the signal of stopping power supply to the energising control module, the energising control module will control being connected between main power source module disconnection display terminal mainboard and the external power source, the display terminal mainboard is powered stopping, thereby finally realize the automatic circuit break function of display terminal, so that display terminal integral body is without power consumption, further energy savings effectively.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a display terminal is characterized in that, comprising:
Main power source module is connected with external power source, display terminal mainboard respectively, is used for when energising work, with the voltage transitions of the external power source output operating voltage to the display terminal mainboard;
The display terminal mainboard, be connected with outer computer, be used for when energising work, send the normal power supply signal to the energising control module, and when the off signal of receiving outer computer output or standby signal, stop to send the normal power supply signal, and send the signal of stopping power supply to the energising control module;
The touch switch module is used for the real-time touching signals that receives and detect outside input, when described touching signals is the normal operation signal, sends the normal power supply signal to the energising control module; And when described touching signals is standby signal, send the signal of stopping power supply to the energising control module;
The energising control module, be connected with external power source, touch switch module, main power source module respectively, the voltage transitions that is used for external power source is exported is to the needed operating voltage of touch switch module, for the touch switch module provides the work electricity consumption, and when receiving the normal power supply signal that touch switch module or display terminal mainboard send, external power source and main power source module are conducted, drive the normal operation of display terminal mainboard by main power source module; And when signal is stopped power supply in the transmission of receiving the transmission of touch switch module or display terminal mainboard, external power source and main power source module are disconnected, display terminal enters holding state.
2. the display terminal shown in claim 1 is characterized in that, described energising control module includes relay and stand-by circuit, wherein:
Described relay, be connected with external power source, touch switch module, main power source module respectively, be used for when receiving the normal power supply signal that touch switch module or display terminal mainboard send, energising is closed, external power source and display terminal mainboard are conducted, open the operation main power source module, drive the normal operation of display terminal mainboard by main power source module; And when the signal of stopping power supply of receiving that touch switch module or display terminal mainboard send, external power source and display terminal mainboard are disconnected, main power source module out of service, main power source module stop to drive the work of display terminal mainboard;
Voltage conversion circuit is connected with external power source, touch switch module respectively, and the voltage transitions that is used for external power source is exported is to the needed operating voltage of touch switch module, for the touch switch module provides the work electricity consumption.
3. the display terminal shown in claim 2, it is characterized in that, the live wire input end e of described voltage conversion circuit meets current protection device F1, F2 successively, node between described current protection device F1 and the F2 and the voltage input end g of relay T join, and the voltage output end h of described relay T is connected with the live wire input end b of main power source module; Described current protection device F2 meets the zero line input end a of external power source S and described main power source module successively;
The zero line input end a of the zero line input end d of described voltage conversion circuit and described main power source module joins, and the voltage output end c of described main power source module is connected with the voltage input end of display terminal mainboard;
The voltage output end f of described voltage conversion circuit is connected with the end of touch switch K, and the other end of described touch switch K joins with the coil control end i of signal output part J, the relay T of display terminal mainboard respectively.
4. the display terminal shown in claim 3 is characterized in that, described over-current protection device is fuse.
5. the display terminal shown in claim 3 is characterized in that, described touch switch is that electric capacity refers to touch switch and/or conducting film pressure-sensitive switch.
6. the display terminal shown in claim 2, it is characterized in that, described voltage conversion circuit includes a standby power integrated circuit (IC) 1 and a transformer T1, one end of the primary voltage input end of described transformer T1 joins with rectification circuit one end, filtering circuit one end respectively, the other end of the primary voltage input end of described transformer T1 and the drain lead D of described IC1 join, and the source lead S of described IC1 connects respectively the other end of described rectification circuit, the other end of filtering circuit;
The feedback pin FB of described IC1 is connecting resistance R3 and R4 respectively, is parallel with a capacitor C 4 on the described resistance R 4, and the secondary voltage output terminal L3 of described R3 and transformer T1 joins, and the source lead S of described R4 and described IC1 joins;
The energization pins BP of described IC2 joins with capacitor C 3, resistance R 2 respectively, and the negative electrode of described resistance R 2 and diode D5 joins, and secondary voltage output terminal L3, a capacitor C 5 of the anode of described diode D5 and transformer T1 are joined;
The secondary voltage output terminal L3 of described transformer T1 and the negative electrode of a diode D6 join, and the anode of described diode D6 connects respectively the source S of capacitor C 5, resistance R 4, capacitor C 4 and C3 and IC1;
The secondary voltage output terminal L2 of described transformer T1 and the anode of a voltage stabilizing diode D7 join, and the negative electrode of described voltage stabilizing diode D7 connects respectively the anode of capacitor C 7 and diode D8, the negative electrode contact control K switch of described diode D8;
Described touch switch K is connecting resistance R5, the negative electrode of diode D9 and the signal output part J of display terminal mainboard respectively, described resistance R 4 and relay T, and described relay T connects main power source module; The voltage input end of the voltage output end of described main power source module and described display terminal mainboard joins.
7. the display terminal shown in claim 6 is characterized in that, described rectification circuit includes diode D1, D2, D3, D4, and the series arm that described diode D1 and D3 form is in parallel with the series arm that diode D2 and D4 form.
8. the display terminal shown in claim 6, it is characterized in that described filtering circuit includes capacitor C 1, C2 and resistance R 1, inductance L 1, described resistance R 1 and inductance L 1 form parallel circuit, one end and the capacitor C 1 of this parallel circuit are joined, and the other end and capacitor C 2 are joined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210317154.4A CN102866769B (en) | 2012-08-31 | 2012-08-31 | Display terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210317154.4A CN102866769B (en) | 2012-08-31 | 2012-08-31 | Display terminal |
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| CN102866769A true CN102866769A (en) | 2013-01-09 |
| CN102866769B CN102866769B (en) | 2015-05-13 |
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| CN201210317154.4A Expired - Fee Related CN102866769B (en) | 2012-08-31 | 2012-08-31 | Display terminal |
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| CN105911917A (en) * | 2016-06-12 | 2016-08-31 | 京东方科技集团股份有限公司 | Control circuit and control method thereof, and display system |
| CN105912058A (en) * | 2015-11-16 | 2016-08-31 | 深圳Tcl数字技术有限公司 | Standby circuit and electronic device |
| CN106055506A (en) * | 2016-05-26 | 2016-10-26 | 浪潮电子信息产业股份有限公司 | Method for improving reliability of hot plug unit of storage server |
| CN106131466A (en) * | 2016-08-26 | 2016-11-16 | 合肥惠科金扬科技有限公司 | A kind of television set and power panel circuit thereof |
| CN109086190A (en) * | 2018-08-30 | 2018-12-25 | 科大讯飞股份有限公司 | A kind of computer equipment and display condition control method |
| CN111679729A (en) * | 2020-07-04 | 2020-09-18 | 广西世纪创新显示电子有限公司 | Display control system and control method for intelligent startup and shutdown |
| CN112133251A (en) * | 2020-10-30 | 2020-12-25 | 歌尔科技有限公司 | Wearable device display control method and wearable device |
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| CN101609351A (en) * | 2008-06-18 | 2009-12-23 | 鸿富锦精密工业（深圳）有限公司 | Notebook computer |
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| CN106131466A (en) * | 2016-08-26 | 2016-11-16 | 合肥惠科金扬科技有限公司 | A kind of television set and power panel circuit thereof |
| CN109086190A (en) * | 2018-08-30 | 2018-12-25 | 科大讯飞股份有限公司 | A kind of computer equipment and display condition control method |
| CN111679729A (en) * | 2020-07-04 | 2020-09-18 | 广西世纪创新显示电子有限公司 | Display control system and control method for intelligent startup and shutdown |
| CN112133251A (en) * | 2020-10-30 | 2020-12-25 | 歌尔科技有限公司 | Wearable device display control method and wearable device |
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| Publication number | Publication date |
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| CN102866769B (en) | 2015-05-13 |
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