CN203433457U - Power supply control system of display - Google Patents
Power supply control system of display Download PDFInfo
- Publication number
- CN203433457U CN203433457U CN201320343628.2U CN201320343628U CN203433457U CN 203433457 U CN203433457 U CN 203433457U CN 201320343628 U CN201320343628 U CN 201320343628U CN 203433457 U CN203433457 U CN 203433457U
- Authority
- CN
- China
- Prior art keywords
- display
- video interface
- circuit
- control system
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 abstract description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Power Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The utility model discloses a power supply control system of a display, and the system comprises a host and a display module. The improvements of the power supply control system of the display reside in that the host has a first video interface, the host can provide a working voltage through the first video interface, the display comprises a second video interface, a control circuit and a power circuit, wherein the first video interface and the second video interface are connected through a transmission line, the control circuit can receive the working voltage through the second video interface, and the control circuit further provides a voltage signal to the power circuit according to the working voltage to control switching-on and switching-off of the power circuit. Thus, switching-on or switching-off of power supply of the display and the host can be controlled at the same time, so that convenience of use is improved, and an effect of saving energy is achieved at the same time.
Description
Technical field
This is novel relates to a kind of switching system, particularly relates to the display power control system of a kind of main frame and displays separated.
Background technology
Press, science and technology is constantly maked rapid progress, and personal computer is universalness more and more also, and desktop computer is because having the first-selection that becomes most consumers compared with high cost performance.Inferior pressing, liquid crystal display is because having the advantages such as low diathermaneity, low power consumption and slimming, day by day extensive on using, and along with correlation technique reaches its maturity and innovates, its kind is day by day various.
Liquid crystal display generally comprises a control panel (Control Board) and a LCD MODULE (Liquid Crystal Display Module, LCM), wherein LCD MODULE comprises that plural display unit is to realize the demonstration of image, control panel comprises a power circuit, can be used for receiving extraneous power source voltage Vcc, and this power source voltage Vcc is transformed into the required various voltages of LCD MODULE.
Conventionally the power supply of display and main frame need be controlled by power switch separately conventionally, only, display is generally furnished on a working face (as desktop), main frame is furnished side under this working face as, when computer booting, liquid crystal display can't light automatically, causes user's inconvenience; Although can control the power switch of display, continue to open to solve above-mentioned inconvenience, this kind of mode will cause energy dissipation.
novel content
The fundamental purpose that this is novel, is to provide a kind of display power control system that can simultaneously control the on/off of display and main frame.
According to this one of novel embodiment, described display power control system comprises a main frame and a display apparatus module, this novel improvement part is, this main frame has one first video interface, and this main frame can see through this first video interface one operating voltage is provided, this display includes one second video interface, one control circuit and a power circuit, wherein this first video interface is connected via a transmission line with this second video interface, this control circuit can see through this second video interface and receive this operating voltage, this control circuit further provides a voltage signal to this power circuit according to this operating voltage, to control the break-make of this power circuit.
This is novel has following beneficial effect: this novel display power control system is by the circuit design that changes display, user only need touch the power supply that power switch on main frame can be opened main frame and display simultaneously, facilitate user to operate, and reach energy-conservation effect simultaneously.
For this novel above-mentioned and other object, feature, advantage can be become apparent, below by the preferred embodiment especially exemplified by originally novel, and coordinate appended graphic being described in detail below.
Accompanying drawing explanation
Fig. 1 is the calcspar of this novel display power control system;
Fig. 2 is the circuit diagram of this novel control circuit;
Fig. 3 is the constitutional diagram of this novel display power control system; And
Fig. 4 is the applicating flow chart of this novel display power control system.
primary clustering symbol description
100 display power control systems
1 main frame
10 first video clip
2 displays
20 second video clip
21 control circuits
211 on-off circuits
212 logic locks
2121 base stages
2122 collectors
2123 emitter-base bandgap gradings
213 first input ends
214 second input ends
215 output terminals
216 resistance
22 power circuits
3 transmission lines
Embodiment
This novel " display power control system " is mainly to see through video interface to reach when main frame switching on and shutting down, and display is being followed automatic switch, below will introduce in detail this novel embodiment.
Please refer to Fig. 1, is the calcspar of this new display power control system.The display power control system 100 of the present embodiment comprises a main frame 1 and a display 2.
Particularly, main frame 1 is provided with one first video interface 10, is provided with one second video interface 20 on display 2, and between the first video interface 10 and the second video interface 20, mat one transmission line 3 is connected, and makes main frame 1 and display 2 reach electrically connect.In the present embodiment, the first video interface 10 and the second video interface 20 are respectively HDMI (High Definition Multimedia Interface) (HDMI), transmission line is HDMI (High Definition Multimedia Interface) transmission line (HDMI transmission line), so, when the electric power starting of main frame 1, main frame 1 can be via transmission line 3 to display 2 transmitting image signals and export an operating voltage, as+5V.
Please refer to Fig. 2, be the circuit diagram of this new type control circuit, and please coordinate with reference to figure 3.Control circuit 21 comprises an on-off circuit 211, a logic lock 212, a first input end 213, one second input end 214 and an output terminal 215.Particularly, on-off circuit 211 is connected with a power end, with selectivity, inputs an extraneous supply voltage, as+5V; First input end 213 connects the second video interface 20, can be used for receiving this operating voltage by main frame 1 input, and the second input end 214 connecting valve circuit 211 can be used for receiving this external world's supply voltage by power end input; Logic lock 212 is connected with first input end 213, the second input end 214 and output terminal 215 respectively, can compare this operating voltage or this external world's supply voltage, and control signal via output terminal 215 outputs one.
In more detail, when logic lock 212 detects the operating voltage via the second video interface 20 inputs (detecting+5V), from output terminal 215, to power circuit 22, send a high levle voltage signal, to control power circuit 22 conductings, make display 2 follow main frame 1 start and automatically light (as shown in Figure 3 from state S02, switch to state S01); If after main frame 1 shutdown, logic lock 212 does not send a low level voltage signal because detecting operating voltage (not detecting+5V) to power circuit 22, to control power circuit 22, disconnect, make display 2 follow main frame 1 shutdown and automatically close (as shown in Figure 3 from state S01, switch to state S02); So, user can, by the power switch on main frame 1 to open the power supply of main frame 1 and display simultaneously, facilitate user to operate.
What need mention is, on-off circuit 211 is the switching function of script display 2, even if main frame 1 is in off-mode, outside logic lock 212 detects via the second input end 214 input during boundary's supply voltage (detecting equally+5V), still can to power circuit 22, send a high levle voltage signal from output terminal 215, so that display 2 is opened.
For reaching above-mentioned object; the logic lock 212 of the present embodiment may be selected to be bipolar transistor; it has a base stage 2121, a collector 2122 and an emitter-base bandgap grading 2123; wherein collector 2122 is connected with first input end 213; emitter-base bandgap grading 2123 is connected with the second input end 214 and passes through resistance 216 ground connection; with protection logic lock 212 and on-off circuit 211, base stage 2121 is connected with output terminal 215.Be understandable that, this is novel non-as limit, such as can reach assembly such as the totalizer (adder) of identical object or door (OR gate) etc., also can replace bipolar transistor and is arranged at this novel control circuit 21 inside.
Please refer to Fig. 4, applicating flow chart for this new display power control system, concrete application, the application of described display power control system comprises the following steps: first as shown in square S1, one display power control system 100 is provided, and wherein main frame 1 is connected through HDMI (High Definition Multimedia Interface) with display 2; Then as shown in square S2, utilize 212 detectings of logic lock by one of the second video interface 20 inputs operating voltage (i.e. detecting+5V); If logic lock 212 detects this operating voltage and carries out square S3, logic lock 212, to power circuit 22 output one high levle voltage signals, makes display 2 follow main frame 1 start and automatically open.
If logic lock 212 does not detect this operating voltage and carries out square S4, logic lock 212 is exported low level voltage signals to power circuit 22,, make display 2 follow main frame 1 shutdown and automatically close (as shown in square S5); Or, if detecting this operating voltage, logic lock 212 also can not carry out square S6, mat on-off circuit 211 input one extraneous supply voltages, and logic lock 212 detects this external world's supply voltage (detecting equally+5V) and to power circuit 22 output one high levle voltage signals, display 2 is opened.
In sum, compared to the traditional monitor switching system separated with main frame, this novel display power control system is by the circuit design that changes display, user only need touch the power supply that power switch on main frame can be opened main frame and display simultaneously, facilitate user to operate, and reach energy-conservation effect simultaneously.
Though originally novel, in preferred embodiment mode, disclose; so its not in order to restriction, this is novel, anyly have the knack of this skill personage, within not departing from these novel spirit and scope; when doing various changes and modification, therefore this novel protection domain when depending on after the attached claim person of defining be as the criterion.
Claims (6)
1. a display power control system, is characterized in that, comprising:
One main frame, has one first video interface, and this main frame can see through this first video interface one operating voltage is provided; And
One display apparatus module, include one second video interface, a control circuit and a power circuit, wherein, this first video interface is connected via a transmission line with this second video interface, this control circuit can see through this second video interface and receive this operating voltage, this control circuit further provides a voltage signal to this power circuit according to this operating voltage, to control the break-make of this power circuit.
2. display power control system as claimed in claim 1, it is characterized in that, more comprise an on-off circuit, be connected with a power end, with selectivity, input an extraneous supply voltage, this control circuit comprises a logic lock, one first input end, one second input end and an output terminal, this first input end connects this second video interface, be used for receiving this supply voltage, this second input end connects this on-off circuit, be used for receiving this external world's supply voltage, this logic lock compares this operating voltage or this external world's supply voltage, and control signal via this output terminal output one.
3. display power control system as claimed in claim 2, is characterized in that, this logic lock is a totalizer.
4. display power control system as claimed in claim 2, is characterized in that, this logic lock be one or door.
5. display power control system as claimed in claim 2, it is characterized in that, this logic lock is a bipolar transistor, there is a base stage, a collector and an emitter-base bandgap grading, the collector of this bipolar transistor is connected with this first input end, the emitter-base bandgap grading of this bipolar transistor is connected with this second input end, and the base stage of this bipolar transistor is connected with this output terminal.
6. display power control system as claimed in claim 1, is characterized in that, this first video interface and this second video interface are HDMI (High Definition Multimedia Interface), and this transmission line is HDMI (High Definition Multimedia Interface) transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320343628.2U CN203433457U (en) | 2013-06-17 | 2013-06-17 | Power supply control system of display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320343628.2U CN203433457U (en) | 2013-06-17 | 2013-06-17 | Power supply control system of display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203433457U true CN203433457U (en) | 2014-02-12 |
Family
ID=50062484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320343628.2U Expired - Fee Related CN203433457U (en) | 2013-06-17 | 2013-06-17 | Power supply control system of display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203433457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI561087B (en) * | 2015-02-09 | 2016-12-01 | Hongfujin Prec Ind Wuhan | Power supply control system |
-
2013
- 2013-06-17 CN CN201320343628.2U patent/CN203433457U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI561087B (en) * | 2015-02-09 | 2016-12-01 | Hongfujin Prec Ind Wuhan | Power supply control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105739757B (en) | The scan method and system of touch screen, touch screen and touch panel device | |
| CN202711660U (en) | LED display system and LED display unit box body thereof | |
| CN102622177A (en) | Mobile terminal and display screen region display method thereof | |
| CN101930279A (en) | Power-saving electronic device for computer mainboard and computer mainboard thereof | |
| CN217640138U (en) | TDDI display module and terminal equipment | |
| CN104111390A (en) | Device for realizing automatic powering-on/off test | |
| CN106057106B (en) | A detection structure, detection method and display device | |
| CN104821156B (en) | A kind of LED backlight drive circuit | |
| CN114035702A (en) | Touch awakening method and device of display equipment, power supply circuit and display equipment | |
| CN101551988B (en) | A method for a display to operate in DPMS mode | |
| CN204203947U (en) | Two separate display is with aobvious android terminal | |
| US9066398B2 (en) | Method for reducing standby power consumption | |
| CN102930834B (en) | Method for reducing standby power consumption | |
| CN203165428U (en) | TFT LCD display control system | |
| CN203433457U (en) | Power supply control system of display | |
| CN105511588B (en) | A kind of electronic equipment and its screen display method of application | |
| KR20130118773A (en) | Display control system | |
| CN101308630A (en) | LCD device | |
| CN106849638A (en) | A kind of power circuit and liquid crystal display | |
| CN204303312U (en) | A kind of high speed signal control switching circuit detected for display screen | |
| CN104090645A (en) | Power supply control system of display and control method thereof | |
| CN106231218A (en) | Can the OLED display screen Circuits System of local display | |
| CN201199302Y (en) | Wide-temperature metal-reinforcement high-bright whole water-proof low-power consumption special liquid crystal display apparatus | |
| CN109272946A (en) | A kind of backlight control circuit and liquid crystal display device | |
| CN204086740U (en) | A kind of LCD display interface switching device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20170617 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |