CN206712935U - LCD TV based on low-voltage DC supply - Google Patents
LCD TV based on low-voltage DC supply Download PDFInfo
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- CN206712935U CN206712935U CN201720285168.0U CN201720285168U CN206712935U CN 206712935 U CN206712935 U CN 206712935U CN 201720285168 U CN201720285168 U CN 201720285168U CN 206712935 U CN206712935 U CN 206712935U
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Abstract
The utility model discloses a kind of LCD TV based on low-voltage DC supply, LCD TV includes：Liquid crystal panel, backlight lamp tube, reflector, the liquid crystal drive board for controlling liquid crystal panel working condition；Liquid crystal drive board includes mainboard and video card；It is characterized in that：Mainboard, video card, liquid crystal panel are driven using network cable；Backlight lamp tube includes M group lamp strings；Every group of lamp string is composed in series by N number of fluorescent tube；It is connected in parallel to each other between M group lamp strings；The mainboard, video card, liquid crystal panel, the cathode power supply terminal of every group of lamp string electrically connect with the 4th stitch, the 5th stitch of network cable, and the mainboard, video card, liquid crystal panel, the negative power supply terminal of every group of lamp string electrically connect with the 7th stitch, the 8th stitch of network cable；The mainboard, the I/O terminals of video card electrically connect with the first stitch, the second stitch, the 3rd stitch, the 6th stitch of network cable.The utility model, which has, saves electric energy, reduces volume, reduce fault rate, improve the advantages of safety coefficient.
Description
Technical field
Liquid crystal tv technology field is the utility model is related to, more particularly to a kind of liquid crystal electricity based on low-voltage DC supply
Depending on.
Background technology
LCD TV, or LCD (Liquid Crystal Display), it is the display device of planar ultra-thin, it is by one
Colour or the monochrome pixels composition of fixed number amount, are positioned in front of light source or reflecting surface.LCD TV power consumption is very low, therefore by
Engineer favors, and is suitable for use with the electronic equipment of battery.Its cardinal principle be with electric current stimulate liquid crystal molecule produce point,
Line, face coordinate back fluorescent tube to form picture.LCD TV is widely used in Industry Control, and especially some machines is man-machine,
The panel, the display of medicine equipment etc. of complex control equipment.
LCD TV is an important application of liquid crystal display, and at present, traditional LCD TV is mainly using city
Electric (220V alternating current) is powered, referring to Fig. 1, this LCD TV include liquid crystal panel, backlight lamp tube, reflector,
Control liquid crystal drive board, power panel, the hardboard of liquid crystal panel working condition；The liquid crystal drive board includes mainboard and video card；
Traditional tv power supply is that 220v AC-powereds are then converted to low-voltage DC for AC-DC；Shortcoming：In electric power conversion process
In, energy loss is big, can produce the heat of great quantities of spare, not save.There is unsafe hidden danger using 220v AC-powereds.It is logical
Cross practice and find that this traditional liquid crystal TV set power consumption is higher, simultaneously because voltage ratio is higher, therefore certain peace be present
Full hidden danger.
Utility model content
The technical problems to be solved in the utility model is：It is high based on low pressure to provide a kind of good energy-conserving effect, safety coefficient
The LCD TV of direct current supply.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：
A kind of LCD TV based on low-voltage DC supply, the LCD TV include：It is liquid crystal panel, backlight lamp tube, anti-
Tabula rasa, the liquid crystal drive board for controlling liquid crystal panel working condition；The liquid crystal drive board includes mainboard and video card；Its feature exists
In：The mainboard, video card, liquid crystal panel are driven using network cable；
The backlight lamp tube includes M group lamp strings；Every group of lamp string is composed in series by N number of fluorescent tube；Between M group lamp strings each other simultaneously
Connection；The mainboard, video card, liquid crystal panel, the 4th stitch, the 5th stitch of the cathode power supply terminal of every group of lamp string and network cable
Electrical connection, the mainboard, video card, liquid crystal panel, the 7th stitch of the negative power supply terminal of every group of lamp string and network cable, the 8th
Stitch electrically connects；The mainboard, the first stitch of the I/O terminals of video card and network cable, the second stitch, the 3rd stitch, the 6th
Stitch electrically connects.
Preferably, the utility model additionally uses following technical scheme：
Further：The end set of the network cable has RJ45 interfaces, and the network cable passes through RJ45 interfaces and master
Plate connects.
Further：The network cable is connected with POE controllers.
Further：The output voltage of the POE controllers is one kind in 48V or 36V.
Further：The RJ45 Interface integrations are on liquid crystal drive board.
The utility model has the advantages and positive effects of：
By using above-mentioned technical proposal, the utility model by traditional 220V Alternating Current Power Supplies be changed to network cable realize it is low
Straightening stream function of supplying power, while also realize the transmission of data-signal；The connected mode of backlight lamp tube has been carried out to appropriate adjustment,
Power supply adaptor can be so saved, simultaneously as low-voltage DC supply uses effect than constant pressure source power supply with higher power supply
Rate, therefore substantial amounts of electric energy can be saved, volume is reduced, reduces fault rate, by experiment, by being to traditional power consumption
70W LCD TVs (former model KONKA Konka LED39E330CE) are transformed, improved LCD TV power consumption drop
To 50W or so, therefore power savings are notable；Meanwhile if using 36V low-voltage DC supply, there is more preferable security
(36V belongs to safe voltage)；As a result of RJ45 interfaces, therefore on the one hand the interface is powered, still further aspect transmission
Data, that is, the configuration of data and the same interface of power supply is realized, the interface quantity of liquid crystal TV set can be reduced well, reduced
Fault rate, as a result of POE controllers, therefore, it is easy to control and operates.
Brief description of the drawings
Fig. 1 is the internal circuit block diagram of traditional liquid crystal television set；
Fig. 2 is the circuit diagram of first preferred embodiment of the present utility model；
Fig. 3 is the circuit diagram of the second preferred embodiment of the present utility model；
Fig. 4 is the circuit diagram of third preferred embodiment of the present utility model.
Embodiment
For utility model content, feature and effect of the present utility model can be further appreciated that, following examples are hereby enumerated, and
Accompanying drawing is coordinated to describe in detail as follows：
Fig. 2 and Fig. 3, a kind of LCD TV based on low-voltage DC supply are referred to, the LCD TV includes：Liquid crystal surface
Plate, backlight lamp tube, reflector, the liquid crystal drive board for controlling liquid crystal panel working condition；The liquid crystal drive board include mainboard and
Video card；Above-mentioned liquid crystal panel, reflector；Belong to the electronic component of comparative maturity, the annexation of mainboard and video card, video card with
The annexation of liquid crystal panel is prior art；The patent is not the innovation to above-mentioned electronic component；
In order to realize energy-conservation, safety, the purpose for simplifying circuit structure, this patent is on the basis of conventional art：The patent
In liquid crystal display using network cable be powered and signal transmit；Network cable can provide 36V either 48V
Low-voltage dc power supply, in order that above-mentioned dc source meets the needs of backlight lamp tube, therefore according to the actual needs, the back of the body
Light lamp tube includes M group lamp strings；Every group of lamp string is composed in series by N number of fluorescent tube；It is connected in parallel to each other between M group lamp strings；Every group of lamp string both ends
Driving voltage for 36V either 48V；The mainboard, video card, liquid crystal panel, the cathode power supply terminal and network of every group of lamp string
4th stitch of cable, the electrical connection of the 5th stitch, the mainboard, video card, liquid crystal panel, every group of lamp string negative power supply terminal with
7th stitch of network cable, the electrical connection of the 8th stitch；The mainboard, the I/O terminals of video card and network cable the first stitch,
Second stitch, the 3rd stitch, the electrical connection of the 6th stitch.
In the preferred embodiment, LCD TV power supply and signal transmission are used as power supply medium using netting twine.According to EIA/
TIA568B standard requires that the first stitch 1, the second stitch and the 3rd stitch, the 6th stitch line sequence connect TV signal in netting twine；
The 4th stitch, the 5th stitch connect (TV) liquid crystal board power supply positive pole in netting twine, and the 7th stitch, the 8th stitch connect (TV) liquid crystal board
Power supply negative pole；This patent is directly powered using low-voltage direct, and energy loss is small, does not produce excessive thermal losses, energy-conservation, equipment
Service life is grown, and safe to use, reduces the hidden danger of accidental shock.
The operation principle of this preferred embodiment is：On the one hand network cable is mainboard, video card, backlight lamp tube, liquid crystal panel
Low-voltage direct electric energy is provided, ensures the normal work of above-mentioned each part；Meanwhile network cable can also carry for mainboard, video card
For data-signal；And then realize the multi-purpose function of a bite；Because network cable can directly export 36V either 48V low pressure
Direct current energy, and above-mentioned low-voltage direct electric energy can directly meet the electrical energy demands of mainboard, video card, backlight lamp tube, liquid crystal panel；
And no longer need power supply adaptor；Therefore, the preferred embodiment can save electric energy well, reduce volume, reduce fault rate,
Improve safety coefficient.
Preferably, in order to realize intelligentized control method and management：
The end set of the network cable has RJ45 interfaces, and the network cable is connected by RJ45 interfaces with mainboard.
Fig. 3 and Fig. 4 are referred to, the network cable is connected with POE controllers or POE interchangers.
The output voltage of the POE controllers or POE interchangers is one kind in 48V or 36V.
The RJ45 Interface integrations are on liquid crystal drive board.
Embodiment of the present utility model is described in detail above, but the content is only of the present utility model preferable
Embodiment, it is impossible to be considered as being used to limit practical range of the present utility model.It is all made according to present utility model application scope it is equal
Deng change and improvement etc., all should still belong within patent covering scope of the present utility model.
Claims (5)
1. a kind of LCD TV based on low-voltage DC supply, the LCD TV include：It is liquid crystal panel, backlight lamp tube, reflective
Plate, the liquid crystal drive board for controlling liquid crystal panel working condition；The liquid crystal drive board includes mainboard and video card；It is characterized in that：
The mainboard, video card, liquid crystal panel are driven using network cable；
The backlight lamp tube includes M group lamp strings；Every group of lamp string is composed in series by N number of fluorescent tube；It is connected in parallel to each other between M group lamp strings；Institute
The 4th stitch, the 5th stitch for stating mainboard, video card, liquid crystal panel, the cathode power supply terminal of every group of lamp string and network cable are electrically connected
Connect, the mainboard, video card, liquid crystal panel, the 7th stitch, the 8th stitch of the negative power supply terminal of every group of lamp string and network cable
Electrical connection；The mainboard, the first stitch of the I/O terminals of video card and network cable, the second stitch, the 3rd stitch, the 6th stitch
Electrical connection.
2. the LCD TV according to claim 1 based on low-voltage DC supply, it is characterised in that：The network cable
End set has RJ45 interfaces, and the network cable is connected by RJ45 interfaces with mainboard.
3. the LCD TV according to claim 1 based on low-voltage DC supply, it is characterised in that：The network cable with
POE controllers connect.
4. the LCD TV according to claim 3 based on low-voltage DC supply, it is characterised in that：The POE controllers
Output voltage be 48V or 36V in one kind.
5. the LCD TV according to claim 2 based on low-voltage DC supply, it is characterised in that：The RJ45 sets of interfaces
Into on liquid crystal drive board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720285168.0U CN206712935U (en) | 2017-03-23 | 2017-03-23 | LCD TV based on low-voltage DC supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720285168.0U CN206712935U (en) | 2017-03-23 | 2017-03-23 | LCD TV based on low-voltage DC supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206712935U true CN206712935U (en) | 2017-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720285168.0U Active CN206712935U (en) | 2017-03-23 | 2017-03-23 | LCD TV based on low-voltage DC supply |
Country Status (1)
| Country | Link |
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| CN (1) | CN206712935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106961566A (en) * | 2017-03-23 | 2017-07-18 | 互联智控科技（天津）有限公司 | A kind of LCD TV based on low-voltage DC supply |
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2017
- 2017-03-23 CN CN201720285168.0U patent/CN206712935U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106961566A (en) * | 2017-03-23 | 2017-07-18 | 互联智控科技（天津）有限公司 | A kind of LCD TV based on low-voltage DC supply |
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