CN207038139U - A kind of multi-cascade display circuit - Google Patents
A kind of multi-cascade display circuit Download PDFInfo
- Publication number
- CN207038139U CN207038139U CN201720840334.9U CN201720840334U CN207038139U CN 207038139 U CN207038139 U CN 207038139U CN 201720840334 U CN201720840334 U CN 201720840334U CN 207038139 U CN207038139 U CN 207038139U
- Authority
- CN
- China
- Prior art keywords
- display
- modem
- electromagnetic relay
- display circuit
- circuit
- 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.)
- Active
Links
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The utility model discloses a kind of multi-cascade display circuit, including signal input part, signal output part, display screen driving, modem and electromagnetic relay, signal input part and signal output part connect electromagnetic relay respectively, electromagnetic relay connects modem, modem connection display screen driving.The utility model drives in display screen and sets electromagnetic relay between display circuit, when the wherein one-level abnormal power-down in multi-cascade display circuit, the display for cascading display below is not interfered with, so as to lift user experience.
Description
Technical field
Circuit field is the utility model is related to, is to be related to a kind of multi-cascade display circuit specifically.
Background technology
The working method of several levels cascade display device in the market is all that signal source one-level one-level down cascades.When it
During middle one-level display circuit abnormal electrical power supply, picture signal can not be efficiently transmitted to next stage, cause from this grade of display device
All cascade displays are shown without image behind starting.
Above deficiency, has much room for improvement.
Utility model content
In order to overcome the shortcomings of existing technology, the utility model provides a kind of multi-cascade display circuit.
Technical solutions of the utility model are as described below：
A kind of multi-cascade display circuit, including signal input part, signal output part, display screen driving, modem and
Electromagnetic relay, the signal input part and the signal output part connect the electromagnetic relay, the electromagnetism relay respectively
Device connects the modem, and the modem connects the display screen driving.
Further, the electromagnetic relay includes magnet coil, electromagnetic switch, normally opened circuit connecting end and normally-closed circuit
Connection end, the magnet coil connect the electromagnetic switch, and the electromagnetic switch includes signal connection end, the signal connection end
Connect the signal input part.
Further, the normally opened circuit connecting end connects this grade of display driving.
Further, display circuit described in the normally-closed circuit connection end connection next stage.
Further, the normally opened circuit connecting end connects the modem, and the modem connects institute
State display screen driving.
According to the utility model of such scheme, its advantage is, the utility model drives and shown in display screen
Electromagnetic relay is set between circuit, when the wherein one-level abnormal power-down in multi-cascade display circuit, do not interfere with behind
The display of display is cascaded, so as to lift user experience.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is relay construction schematic diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is further described embodiment：
As shown in Figure 1 to Figure 2, a kind of multi-cascade display circuit, including signal input part, signal output part, display screen drive
Dynamic and electromagnetic relay, signal input part and signal output part connect electromagnetic relay, electromagnetic relay connection modulatedemodulate respectively
Adjust device, modem connection display screen driving.The utility model display screen drive and display circuit between set electromagnetism after
Electrical equipment, when the wherein one-level abnormal power-down in multi-cascade display circuit, the display for cascading display below is not interfered with, from
And lift user experience.
Electromagnetic relay includes magnet coil, electromagnetic switch, normally opened circuit connecting end and normally-closed circuit connection end, electromagnetic wire
Circle connection electromagnetic switch, electromagnetic switch include signal connection end, signal connection end connection signal input part.
Normally opened circuit connecting end connects this grade of display driving.
Normally-closed circuit connection end connects next stage display circuit.
Normally opened circuit connecting end connects modem, modem connection display screen driving.
Operation principle：When display circuit power supply is normal, electromagnetic relay energization normal work, relay switch and relay
The normally opened circuit connecting end connection of device, so as to which channel is switched into normally opened channel, works by normal signal flow.Upper level display electricity
The image signal source on road is entered in this grade of display circuit by the signal input part of display circuit, is demodulated by modem
Afterwards, the picture signal of demodulation is input to image display processing circuit, so as to drive display screen display image signals；It is simultaneously also defeated
Going out signal all the way, then will figure so as to carry out the compensation of picture signal and be re-modulated by modem to modulation circuit
As signal is transferred to next stage display circuit；Similarly, so as to realizing down transmitting step by step for image signal source.
When display circuit loses power supply because of abnormal conditions, electromagnetic relay loses power supply simultaneously, then electromagnetic relay is opened
Pass is connected with relay normally-closed circuit connection end, thus switches to normally closed channel so that picture signal is directly inputted to next stage
Display circuit.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of the appended claims for the utility model.
Exemplary description is carried out to the utility model patent above in conjunction with accompanying drawing, it is clear that the reality of the utility model patent
Now be not subject to the restrictions described above, if employ the utility model patent methodology and technical scheme carry out it is various
Improve, or it is not improved the design of the utility model patent and technical scheme are directly applied into other occasions, in this reality
With in new protection domain.
Claims (5)
1. a kind of multi-cascade display circuit, it is characterised in that including signal input part, signal output part, display screen driving, modulation
Demodulator and electromagnetic relay, the signal input part and the signal output part connect the electromagnetic relay respectively, described
Electromagnetic relay connects the modem, and the modem connects the display screen driving.
2. multi-cascade display circuit according to claim 1, it is characterised in that the electromagnetic relay includes electromagnetic wire
Circle, electromagnetic switch, normally opened circuit connecting end and normally-closed circuit connection end, the magnet coil connects the electromagnetic switch, described
Electromagnetic switch includes signal connection end, and the signal connection end connects the signal input part.
3. multi-cascade display circuit according to claim 2, it is characterised in that the normally opened circuit connecting end connects this level
The display driving.
4. multi-cascade display circuit according to claim 2, it is characterised in that the normally-closed circuit connection end connection is next
The level display circuit.
5. multi-cascade display circuit according to claim 2, it is characterised in that described in the normally opened circuit connecting end connection
Modem, the modem connect the display screen driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720840334.9U CN207038139U (en) | 2017-07-12 | 2017-07-12 | A kind of multi-cascade display circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720840334.9U CN207038139U (en) | 2017-07-12 | 2017-07-12 | A kind of multi-cascade display circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207038139U true CN207038139U (en) | 2018-02-23 |
Family
ID=61467642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720840334.9U Active CN207038139U (en) | 2017-07-12 | 2017-07-12 | A kind of multi-cascade display circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207038139U (en) |
-
2017
- 2017-07-12 CN CN201720840334.9U patent/CN207038139U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204013594U (en) | A kind of home intelligent router | |
| CN106155402A (en) | Display menu regulation system and method | |
| CN207038139U (en) | A kind of multi-cascade display circuit | |
| CN203215919U (en) | Low-power-consumption standby circuit device and air conditioner | |
| CN203838888U (en) | Intelligent built-in central control module for all-in-one multimedia machine | |
| CN106357005A (en) | Remote power-on system and controlled end | |
| CN202634564U (en) | Standby power supply management device of television | |
| CN205400206U (en) | A fingerprint operating system for garage | |
| CN203951596U (en) | Anti-electric current back flow circuit | |
| CN204331861U (en) | Anti-with vehicle control | |
| CN206389383U (en) | A kind of intelligent domestic gateway with background music | |
| CN206946227U (en) | Midsequent control circuit | |
| CN208384565U (en) | A kind of low-power consumption RS485 communication interface circuit | |
| CN206503475U (en) | A kind of new hospital's tailored version device for controlling automatic door | |
| CN208061961U (en) | A kind of control assembly based on relay | |
| CN101930277B (en) | Power-saving and awakening device and method | |
| CN201413625Y (en) | Back light modulation circuit and TV set with the same | |
| CN206061252U (en) | Modified model intelligent switch | |
| CN205371051U (en) | Fan water pump intelligent control ware | |
| CN203911150U (en) | Intelligent socket | |
| CN104455649A (en) | Intrinsic safety proportional electromagnetic valve drive module, intrinsic safety proportional control system and mining equipment | |
| CN204331873U (en) | A kind of doorbell is unblanked control circuit | |
| CN205016474U (en) | Novel outer box of relay | |
| CN2508494Y (en) | Network TV set | |
| CN207409243U (en) | display backlight control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |