CN105355165B - Display drive circuit, television set and display device - Google Patents
Display drive circuit, television set and display device Download PDFInfo
- Publication number
- CN105355165B CN105355165B CN201510818972.6A CN201510818972A CN105355165B CN 105355165 B CN105355165 B CN 105355165B CN 201510818972 A CN201510818972 A CN 201510818972A CN 105355165 B CN105355165 B CN 105355165B
- Authority
- CN
- China
- Prior art keywords
- module
- display screen
- current
- driven
- drive 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
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The present invention discloses a kind of display drive circuit, television set and display device, wherein display drive circuit includes power module, control module and memory module；The output end of power module is connect with display screen to be driven, and the controlled end of power module and the first control terminal of control module connect；The signal end of control module and the signal end of memory module connect；Memory module is used to be stored in the current specification parameter of display screen to be driven；Control module, for when display drive circuit starts and lights display screen, the current specification parameter to match with display screen to be driven stored in memory module is transferred according to display screen relevant parameter to be driven, and corresponding pwm signal is exported according to current specification parameter；Power module, for exporting the first current signal when display drive circuit starts to light display screen to be driven, and according to pwm signal output and the matched electric current of display screen to be driven work.Technical solution of the present invention has the characteristics that compatibility is strong.
Description
Technical field
The present invention relates to display screen actuation techniques field, in particular to a kind of display drive circuit, television set and display
Device.
Background technique
The electronic equipments such as mobile phone, computer, television set due to its intelligence, facilitating the features such as by more and more consumers blueness
It looks at.Generally, electronic equipment all has display screen and drives the power panel of display screen work.Wherein, power panel is permanent by output
Fixed electric current driving display screen work, the size of current of output according to the parameter of corresponding display screen, match in advance by fixation
It sets.
But the driving current as needed for various sizes of display screen may be different, the power panel of same specification
It cannot be compatible with the display screen of various sizes, so that the power panel of plurality of specifications is needed to configure, in this way, not only cause inventory difficult,
It repairs simultaneously also very inconvenient when replacement power panel.
Summary of the invention
The main object of the present invention is to provide a kind of display drive circuit, it is intended to improve the simultaneous of the display drive circuit
Capacitive.
To achieve the above object, display drive circuit proposed by the present invention, including power module, image output module,
Control module and memory module；The output end of the power module is connect with display screen to be driven, the power module it is controlled
End is connect with the first control terminal of the control module；The second of the controlled end of described image output module and the control module
Control terminal connection, the output end of described image output module are connect with the display screen to be driven；The signal of the control module
End is connect with the signal end of the memory module；Wherein, the memory module, for being stored in the electric current of the display screen to be driven
Specifications parameter；The control module, for when the display drive circuit starts and lights display screen, according to described wait drive
Dynamic display screen relevant parameter transfers the electric current rule to match with the display screen to be driven stored in the memory module
Lattice parameter, and corresponding pwm signal is exported according to the current specification parameter；
The power module, it is described to light for exporting the first current signal in display drive circuit starting
Display screen to be driven, and according to pwm signal output and the matched electric current of the display screen work to be driven；
Described image output module shows that current specification is joined in the memory module for controlling the display screen to be driven
Number.
Preferably, the current specification parameter in the memory module is erasable and is repeatedly written.
Preferably, the current specification parameter in the memory module is written through the control module.
Preferably, the power module includes multiple constant-current driven chips；Each constant-current driven chip has signal
The signal pins of foot and output pin, each constant-current driven chip are connected, and connecting node is the controlled of the power module
End；The output pin of each constant-current driven chip is the output end of the power module.
Preferably, the constant-current driven chip further includes current limliting foot, and the current limliting foot is grounded by a current-limiting resistance.
Preferably, described image output module is also used to control the display screen to be driven and shows current specification parameter setting
Interface.
Preferably, described image output module is also used to control the display screen to be driven and shows current specification parameter selection
Interface.
The present invention also proposes a kind of television set, including power panel, signal plate and display screen；The power panel is equipped with as above
The power module；The signal plate is equipped with control module as described above, memory module and image output module；It is described
The output end of power module is connect with the display screen, the controlled end of the power module and first control terminal of control module
Connection, the signal end of the control module are connect with the signal end of the memory module, the second control terminal of the control module
It being connect with the controlled end of described image output module, the output end of described image output module is connect with the display screen,
The present invention also proposes a kind of display device, including display drive circuit as described above.Wherein, the display screen
Driving circuit includes power module, control module and memory module；The output end of the power module and display screen to be driven connect
It connects, the controlled end of the power module is connect with the first control terminal of the control module；The signal end of the control module with
The signal end of the memory module connects；The memory module, for being stored in the current specification parameter of the display screen to be driven；
The control module, for transferring the current specification parameter in the memory module, and according to the current specification parameter
Export corresponding pwm signal；The power module, for being worked according to pwm signal output and the display screen to be driven
Matched electric current.
The current specification in the memory module that technical solution of the present invention is transferred by using control module according to it is joined
Number adjusts the output electric current of the constant-current driven module, so that the work of the output electric current and the display screen to be driven of power module
Make currents match.Since the display screen that the control module can according to need driving transfers corresponding electricity in the memory module
Traffic specification parameter, and the electric current of suitable size is exported to drive described show according to power module described in the current specification state modulator
Display screen works normally.Therefore, the display screen of the invention driving circuit can satisfy the demand of the display screen of different current specification parameters.
Compared with the existing technology, the compatibility of display drive circuit is enhanced.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the functional block diagram of one embodiment of the display screen of the invention driving circuit；
Fig. 2 is the first constant-current driven chip of power module and its structural schematic diagram of peripheral circuit in Fig. 1；
Fig. 3 is the functional block diagram of another embodiment of the display screen of the invention driving circuit；
Fig. 4 is a display interface schematic diagram of display screen to be driven in Fig. 3；
Fig. 5 is another display interface schematic diagram of display screen to be driven in Fig. 3；
Fig. 6 is the functional block diagram of one embodiment of television set of the present invention；
Drawing reference numeral explanation:
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
The present invention proposes a kind of display drive circuit.
It is the functional block diagram of one embodiment of the display screen of the invention driving circuit referring to figs. 1 to 6, Fig. 1；Fig. 2 is Fig. 1
First constant-current driven chip of middle power module and its structural schematic diagram of peripheral circuit；Fig. 3 is the display screen of the invention driving electricity
The functional block diagram of another embodiment in road；Fig. 4 is a display interface schematic diagram of display screen to be driven in Fig. 3；Fig. 5 is figure
Another display interface schematic diagram of display screen in 3；Fig. 6 is the functional block diagram of one embodiment of television set of the present invention.
As shown in Figure 1, in embodiments of the present invention, which includes power module 10, control module 20
And memory module 30；The output end of the power module 10 is connect with display screen to be driven, the controlled end of the power module 10
It is connect with the first control terminal of the control module 20；The signal of the signal end of the control module 20 and the memory module 30
End connection；Wherein, the memory module 30 is used to be stored in the current specification parameter of the display screen to be driven；The control module
20, for transferring the current specification parameter in the memory module 30, and is exported and corresponded to according to the current specification parameter
Pwm signal；The power module 10, for matched according to pwm signal output and the display screen work to be driven
Electric current.
When display drive circuit starting, the output end of the power module 10 exports the first current signal to institute
Display screen to be driven is stated, the display screen is bright.The control module 20 transfers described deposit according to display screen relevant parameter to be driven
The current specification parameter to match with the display screen to be driven stored in storage module 30, and export corresponding first
Controlled end of the pwm signal to the power module 10, the first PWM that the power module 10 is received according to its controlled end
The size of current that signal exports its output end is adjusted, so that its output end output size of current and the display to be driven
The current specification parameter of screen matches.The display screen acquisition driving current that current specification parameter matches therewith to be driven is simultaneously
It works normally.
The electric current in the memory module 30 that technical solution of the present invention is transferred by using control module 20 according to it is advised
Lattice parameter adjusts the output electric current of the power module 10, so that the output electric current of power module 10 and the display screen to be driven
Operating current matching.Since the display screen that the control module 20 can according to need driving is transferred in the memory module 30
Corresponding current specification parameter, and the power module 10 according to the current specification state modulator export the electric current of suitable size come
The display screen to be driven is driven to work normally.Therefore, the display screen of the invention driving circuit can satisfy different current specification ginsengs
The demand of several display screens.Compared with the existing technology, the compatibility of display drive circuit is enhanced.
Preferably, the power module 10 includes multiple constant-current driven chips；Each constant-current driven chip has letter
Number foot and output pin, the signal pins connection of each constant-current driven chip, connecting node be the power module 10 by
Control end；The output pin of each constant-current driven chip is the output end of the power module 10.Core is driven using multiple constant currents
Piece constitutes power module 10, can simplify circuit structure.
Further, the constant-current driven chip further includes current limliting foot, and the current limliting foot is grounded by a current-limiting resistance.This
In embodiment, the power module 10 includes the first constant-current driven chip U and the second constant current driving core that model is OZ568GN
Piece.As shown in Fig. 2, the first constant-current driven chip U include receive the first control signal the first signal pins APWM1 and
Second signal foot APWM2, the first output pin DRN1 being connect respectively with the display screen to be driven, the second output pin DRN2,
Three output pin DRN3, the 4th output pin DRN4, the 5th output pin DRN5 and the 6th output pin DRN6.First constant current drives core
The periphery of piece U is provided with first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th electricity
Hinder R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, eleventh resistor R11, twelfth resistor
R12.One end of the first resistor R1 and one end of the second resistance R2 are connect with the first current limliting foot ISEN1, and described
One end of three resistance R3 and one end of the 4th resistance R4 are connect with the second current limliting foot ISEN2, the 5th resistance R5's
One end and one end of the 6th resistance R6 are connect with third current limliting foot ISEN3, one end of the 7th resistance R7 and described
Connection of the one end of 8th resistance R8 with the 4th current limliting foot ISEN4, one end of the 9th resistance R9 and the tenth resistance
One end of R10 is connect with the 5th current limliting foot ISEN5, one end of one end of eleventh resistor R11 and twelfth resistor R12 with
6th current limliting foot ISEN6 connection；The other end of resistance described above is all grounded GND.It should be noted that first constant current is driven
Dynamic chip U has eight output pins and eight current limliting feet, and the present embodiment has used six output pins and six current limliting feet therein,
Certainly as needed, five output pins therein or seven output pin outputs also can be selected, herein with no restrictions.
Wherein, maximum current size=500/ of the output pin output of each constant-current driven chip and the output pin phase
The resistance value of the current-limiting resistance for the current limliting foot connection answered；The electric current is as unit of milliampere, and the resistance is as unit of ohm.It needs
It points out, for the constant-current driven chip of different model, the calculation formula of the size of current of output pin output may be different, on
The maximum current calculation formula for stating the output pin output of constant-current driven chip is only applicable to model selected by the technical program
Constant-current driven chip.The technical program purpose is realized with other model constant-current driven chips, is all protected in the present invention
In technical proposal scope.By second constant-current driven chip in this present embodiment with the first constant-current driven chip U's
Model is completely the same, and the function in the display drive circuit is also consistent, therefore, chip pin structure and periphery setting
All identical as the first constant-current driven chip U, details are not described herein again.It should be noted that there are different parameters for difference
Display screen, the number of the constant-current driven chip in the power module 10 can be adjusted, or use several models
Not exactly the same constant-current driven chip, herein with no restrictions.In addition, consider for circuit cost is reduced, it can also will be above-mentioned
Institute's current limiting foot all connects same resistance, and the other end of the resistance is grounded, herein with no restrictions.
The current limliting foot is added, the maximum drive current size for inputting the display screen to be driven can be limited, to subtract
The damage of few lamp bar to the display screen to be driven, to extend the service life of the display screen to be driven.
Preferably, the current specification parameter in the memory module 30 is erasable and is repeatedly written.Due to electronic equipment
Update is getting faster, and the display screen parameter in electronic equipment can also change with the update of electronic equipment.If the storage mould
Current specification parameter in block 30 immobilizes, the display drive circuit including the memory module 30 can only drive limited kind not
Display screen with current specification parameter works.Therefore, using the memory module 30 that current specification parameter is erasable and is repeatedly written
It can be further improved the compatibility of the display screen of the invention driving circuit, to keep up with the paces of electronic equipment update.
It should be noted that the current specification parameter in the memory module 30 can be write through the control module 20
Enter, the memory module 30 can also be write direct when the memory module 30 is dispatched from the factory.It is appreciated that through the control module
20 are written the current specification parameter to the memory module 30, and the current specification in the memory module 30 can be made to join
Number is reset after factory, to further increase the compatibility of display drive circuit provided by the invention.It is worth mentioning
, the control module 20 controls the output electric current of the power module 10 by output pwm signal.Corresponding,
The current specification parameter stored in the memory module 30 is used to adjust the relevant parameter of the pwm signal.Preferably, institute
Stating current specification parameter is a Duan Chengxu, and the program specifically includes that
Wherein, frequency=crystal oscillator frequency of pwm signal/((Period+1) * (DIV_CNT+1)).If being arranged in circuit
Crystal oscillator frequency is 12MHz, then frequency=12MHz/ ((I_u32Perio dPWM+1) * (I_u16DivPWM+ of the pwm signal
1))=12000000/ ((200+1) * (3+1)) Hz ≈ 15000Hz=15KH z.Pwm signal duty ratio=I_u32DutyPWM/
I_u16MaxPWMvalue=55/499 ≈ 11%.It is appreciated that I_u32PeriodPWM and I_ in adjustment above procedure
The corresponding parameter of u16DivPWM, can be adjusted the frequency of the pwm signal；Adjust the corresponding parameter of I_u32DutyPWM
Adjust the duty ratio of the pwm signal.
Further, as shown in figure 3, the display drive circuit further includes for controlling the display screen display to be driven
Show the image output module 40 of the current specification parameter in the memory module 30；The controlled end of described image output module 40 with
Second control terminal of the control module 20 connects, and the output end of described image output module 40 and the display screen to be driven connect
It connects.
When display drive circuit starting, on the one hand, the control module 20 is according in the memory module 30
The current specification parameter its first control terminal output second control signal to the power module 10 so that the power supply
The relevant parameter of the output electric current and the display screen of module 10 matches.On the other hand, the second control of the control module 20
End processed output third controls signal to described image output module 40 so that described image output module 40 control it is described to be driven
Display screen shows the current specification parameter in the memory module 30.It should be noted that due in the memory module 30
The current specification parameter can be written through the control module 20, and can be modified after factory.Therefore, the storage
The current specification parameter in module 30 can be single group, be also possible to multiple groups.
When the current specification parameter in the memory module 30 is single group, described image output module 40 control it is described to
Driving display screen shows the first display interface 401 as shown in Figure 4.Wherein, first display interface 401 includes the first adjustment
Parameter I_PWM Period, second adjustment parameter I_PWM DIV, third adjusting parameter I_PWM Duty and with the adjusting parameter
Corresponding the first adjustment parameter input frame 4011, second adjustment parameter input frame 4012 and third adjusting parameter input frame 4013.
It should be noted that it is decimal number that above-mentioned adjusting parameter input frame default, which inputs parameter therein, certainly, as needed,
The number of hexadecimal or other systems can be set into, herein with no restrictions.
When display drive circuit starting, the output end of the power module 10 exports the first current signal to institute
Display screen to be driven is stated, the display screen to be driven is bright.The signal end of the control module 20 is transferred from the memory module 30
The one group of current specification parameter stored in the memory module 30 out, the control module 20 exist according to the current specification parameter
Its first control terminal exports the controlled end of pwm signal corresponding with the current specification parameter to the power module 10, described
The output end of power module 10 exports electric current corresponding with the current specification parameter to the display screen to be driven.It is same with this
When, the second control terminal of the control module 20 exports second control signal corresponding with the current specification parameter to the figure
As the controlled end of output module 40, described image output module 40 controls the display to be driven according to the second control signal
Screen display shows the current current specification parameter.Technical staff or maintenance personal will match with current display screen to be driven
Current specification parameter be input to corresponding adjusting parameter input frame, join with the current specification that current display screen to be driven matches
The memory module 30 is written through the control module 20 in number, to replace the current specification stored in previously described memory module 30
Parameter.The control module 20 is according to the current specification state modulator that the technical staff or maintenance personal input
The output electric current of power module 10, the display screen to be driven obtain the electric current that current specification parameter matches therewith.
When the current specification parameter in the memory module 30 is multiple groups, described image output module 40 control it is described to
Driving display screen shows the second display interface 402 as shown in Figure 5.Wherein, second display, 402 face of circle includes multiple electric currents
Specifications parameter Option Box includes and commonly uses the electric current that display screen to be driven matches in each current specification parameter options frame
Specifications parameter.In the present embodiment, second display interface 402 includes first the 4021, second electricity of current specification parameter options frame
Traffic specification parameter options frame 4022, third current specification parameter options frame 4023 and the 4th current specification parameter options frame 4024.
It is understood that increasing in the memory module 30 under conditions of not changing the default setting of the memory module 30
The group number of the current specification parameter can be further improved the compatibility of the display screen of the invention driving circuit, and described second is aobvious
Show the number of the current specification parameter options frame in interface 402 herein with no restrictions.
When the display drive circuit is inactive, four groups are inputted from the control module 20 to the memory module 30
Current specification parameter corresponding with display screen relevant parameter to be driven is commonly used.It is described when display drive circuit starting
The output end of power module 10 exports the second current signal to the display screen to be driven, and the display screen to be driven is bright.It is described
The signal end of control module 20 transfers one group of current specification parameter, the control terminal of the control module 20 from the memory module 30
The controlled end of pwm signal corresponding with the current specification parameter to the power module 10 is exported, the power module 10
Output end exports current limliting corresponding with the current specification parameter to the display screen to be driven.At the same time, the control mould
Controlled end of the 4th control signal of the second control terminal output of block to described image output module 40, described image output module 40
It controls the display screen to be driven and shows second display interface 402 comprising above-mentioned four groups of current specification parameters, technology people
Member or maintenance personal are according to the relevant parameter of the current display screen to be driven selected one group and the display screen phase to be driven
Matched current specification parameter, the current specification parameter chosen by technical staff or maintenance personal are advised as preferred electric current
Lattice parameter, so that the output end output electric current corresponding with the preferred current specification parameter of the power module 10 is extremely
The display screen to be driven.
Described image output module 40 is added, the current specification in the memory module 30 can be made described to be driven aobvious
It is shown in display screen, more accurately adjusts, mention so that technical staff or maintenance personal be facilitated to make current specification parameter
The output accuracy of high display drive circuit.
Hereinafter, illustrating the display screen of the invention driving circuit operation logic in conjunction with Fig. 1 to Fig. 5.
When display drive circuit starting, each output pin of the constant-current driven chip exports third electricity respectively
LED light string of the signal into the display screen to be driven is flowed, the display screen to be driven is bright.The signal end of the control module 20
Original current specification parameter in memory module 30, the first control of the control module 20 are transferred from the memory module 30
End exports relevant to current specification parameter pwm signal to the first signal pins APWM1 of the constant-current driven chip and the
Binary signal foot APWM2, the constant-current driven chip are received according to its first signal pins APWM1 and second signal foot APWM2
The pwm signal adjusts the electric current of its output pin output.At the same time, the second output terminal output of the control module 20 and institute
The relevant 5th control signal of current specification parameter is stated to described image output module 40, described image output module 40 controls institute
It states display screen to be driven and shows display interface relevant to the current specification parameter, technical staff or maintenance personal are according to institute
The display content for stating display screen current display interface to be driven makes accordingly the current specification parameter in the memory module 30
Adjustment so that the electric current that the output pin output of the constant-current driven chip matches with the display screen to be driven.
As shown in fig. 6, the present invention also proposes a kind of television set, the television set include power panel 100, signal plate 200 and
Display screen 300；The power panel 100 is equipped with power module 10 as described above, and the signal plate 200 is equipped with as described above
Control module 20, memory module 30 and image output module 40；The output end of the power module 10 and the display screen 300
Connection, the controlled end of the power module 10 are connect with the first control terminal of the control module 20, the control module 20
Signal end is connect with the signal end of the memory module 30, and the second control terminal and described image of the control module 20 export mould
The controlled end of block 40 connects, and the output end of described image output module 40 is connect with the display screen 300.
When the television boot-strap, the 4th electricity of output end output of the power module 10 on the power panel 100
Signal is flowed to the display screen 300, and the display screen 300 is bright.Control module 20 on the signal plate 200 transfers the storage
Current specification parameter in module 30, and in the first control terminal output the 6th control signal corresponding with the current specification parameter
To the controlled end of the power module 10, the output end output of the power module 10 is corresponding electric with the current specification parameter
It flow to the display screen 300.At the same time, the control module 20 is defeated in its second output terminal according to the current specification parameter
The 7th control signal is to described image display module 40 out, and described image display module 40 is according to the current specification state modulator
The display screen 300 shows display interface relevant to the current specification parameter, and technical staff or maintenance personal obtain institute
The information in display interface is stated, and according to the display screen model of television set to the current specification of memory module 30 in the signal plate
Parameter makes corresponding adjustment, so that the electric current that the output of the power panel 100 matches with 300 model of display screen.
Television set provided by the invention controls the output of power panel 100 by using the control signal that signal plate 200 exports
Current signal so that power panel 100 export current signal can match with the display screen 300 of a variety of different models.Work as electricity
When being replaced with the display screen of other models depending on the former display screen 300 in machine, no replacement is required power panel 100, only need technical staff or
Person maintenance personal makes related adjustment to the current specification parameter in memory module 30, so that it may so that the electricity that power panel 100 exports
It flows and matches with the display screen 300 of new model.In addition, institute not only can be enhanced by current specification parameter described in software control
The portability for stating power panel 100 also eliminates relevant circuit structure, reduces costs.
The present invention also proposes a kind of display device, which includes display drive circuit as described above.Due to
This display device includes whole technical solutions of the embodiment of above-mentioned all display drive circuits, therefore at least has above-mentioned reality
All beneficial effects brought by the technical solution of example are applied, this is no longer going to repeat them.Wherein, the display drive circuit packet
Include power module 10, control module 20 and memory module 30；The output end of the power module 10 is connect with display screen to be driven,
The controlled end of the power module 10 is connect with the first control terminal of the control module 20；The signal end of the control module 20
It is connect with the signal end of the memory module 30；The memory module 30, the electric current for being stored in the display screen to be driven are advised
Lattice parameter；The control module 20, for transferring the current specification parameter in the memory module 30, and according to the electricity
The output electric current of power module 10 described in traffic specification state modulator, so that the output electric current of the power module 10 is with described wait drive
The operating current matching of dynamic display screen.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (9)
1. a kind of display drive circuit, which is characterized in that including power module, image output module, control module and storage
Module；The output end of the power module is connect with display screen to be driven, the controlled end of the power module and the control mould
First control terminal of block connects；The controlled end of described image output module is connect with the second control terminal of the control module, institute
The output end for stating image output module is connect with the display screen to be driven；The signal end of the control module and the storage mould
The signal end of block connects；Wherein,
The memory module, for being stored in the current specification parameter of the display screen to be driven；
The control module, for when the display drive circuit starts and lights display screen, according to described to be driven aobvious
Display screen relevant parameter transfers the current specification ginseng to match with the display screen to be driven stored in the memory module
Number, and corresponding pwm signal is exported according to the current specification parameter；
The power module, it is described wait drive to light for exporting the first current signal in display drive circuit starting
Dynamic display screen, and according to pwm signal output and the matched electric current of the display screen work to be driven；
Described image output module shows current specification parameter in the memory module for controlling the display screen to be driven.
2. display drive circuit as described in claim 1, which is characterized in that the current specification in the memory module
Parameter is erasable and is repeatedly written.
3. display drive circuit as claimed in claim 2, which is characterized in that the current specification in the memory module
Parameter is written through the control module.
4. display drive circuit as described in claim 1, which is characterized in that the power module includes multiple constant current drivings
Chip；Each constant-current driven chip has signal pins and output pin, and the signal pins of each constant-current driven chip are connected
It connects, connecting node is the controlled end of the power module；The output pin of each constant-current driven chip is the power supply mould
The output end of block.
5. display drive circuit as claimed in claim 4, which is characterized in that the constant-current driven chip further includes current limliting
Foot, the current limliting foot are grounded by a current-limiting resistance.
6. display drive circuit as described in claim 1, which is characterized in that described image output module is also used to control institute
It states display screen to be driven and shows current specification parameter setting interface.
7. display drive circuit as described in claim 1, which is characterized in that described image output module is also used to control institute
It states display screen to be driven and shows current specification parameter selection interface.
8. a kind of television set, which is characterized in that the television set includes power panel, signal plate and display screen；On the power panel
Equipped with such as described in any item power modules of claim 1-7；The signal plate is equipped with as described in claim any one of 1-7
Control module, memory module and image output module；The output end of the power module is connect with the display screen, the electricity
The controlled end of source module is connect with first control terminal of control module, the signal end of the control module and the memory module
Signal end connection, the second control terminal of the control module connect with the controlled end of described image output module, described image
The output end of output module is connect with the display screen.
9. a kind of display device, which is characterized in that including such as described in any item display drive circuits of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510818972.6A CN105355165B (en) | 2015-11-23 | 2015-11-23 | Display drive circuit, television set and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510818972.6A CN105355165B (en) | 2015-11-23 | 2015-11-23 | Display drive circuit, television set and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105355165A CN105355165A (en) | 2016-02-24 |
| CN105355165B true CN105355165B (en) | 2019-05-14 |
Family
ID=55331128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510818972.6A Active CN105355165B (en) | 2015-11-23 | 2015-11-23 | Display drive circuit, television set and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105355165B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106023871B (en) * | 2016-06-21 | 2019-08-16 | 深圳创维－Rgb电子有限公司 | The data processing method and device of intelligent terminal constant current IC chip |
| CN108464724A (en) * | 2017-02-23 | 2018-08-31 | 广东美的生活电器制造有限公司 | A kind of the motor status display device and the Normal juice machine of Normal juice machine |
| CN110675795B (en) * | 2019-09-23 | 2021-02-02 | 珠海格力电器股份有限公司 | Display driving method, device and system and touch screen |
| CN112015318B (en) * | 2020-08-25 | 2022-05-31 | 京东方科技集团股份有限公司 | Display module debugging device, system and method |
| CN116798347A (en) * | 2023-05-24 | 2023-09-22 | 成都利普芯微电子有限公司 | Signal transmission chip, display module assembly and display screen |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840657A (en) * | 2009-03-20 | 2010-09-22 | 上海金陵时威科技发展股份有限公司 | LED electronic display screen system |
| CN101986381A (en) * | 2010-11-04 | 2011-03-16 | 中兴通讯股份有限公司 | Method and device for recognizing liquid crystal display screen and terminal |
| CN102279816A (en) * | 2011-06-02 | 2011-12-14 | 北京百纳威尔科技有限公司 | LCD (liquid crystal display) automatic identification method and device |
| CN202677744U (en) * | 2012-05-03 | 2013-01-16 | 晋江益达光电科技有限公司 | Novel outdoor full color display screen |
| CN202855272U (en) * | 2012-09-12 | 2013-04-03 | 上海江森自控汽车电子有限公司 | LCD backlight constant current drive circuit based on operational amplifiernegative feedback circuit |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040021681A1 (en) * | 2002-07-30 | 2004-02-05 | Liao Chin-Hua Arthur | Dual-touch-screen mobile computer |
| CN2643330Y (en) * | 2003-08-27 | 2004-09-22 | 郑州珂玛电子技术有限公司 | Digital cell with liquid crystal display |
| KR101461115B1 (en) * | 2007-10-31 | 2014-11-13 | 삼성디스플레이 주식회사 | Backlight apparatus and liquid crystal display apparatus having the same |
| CN201142031Y (en) * | 2008-01-18 | 2008-10-29 | 刘远斌 | Programmable constant-current source output device controlled by single-chip |
| CN102421216B (en) * | 2010-09-28 | 2014-05-07 | 深圳市长运通光电技术有限公司 | LED (Light-Emitting Diode) array scanning chip, LED device and LED scanning circuit |
| CN101956941B (en) * | 2010-10-22 | 2012-02-29 | 深圳威德森科技有限公司 | LED (Light Emitting Diode) aquarium light |
| CN204695749U (en) * | 2015-04-30 | 2015-10-07 | 深圳Tcl数字技术有限公司 | Automatic identification and mate circuit and the liquid crystal indicator of multiple screen |
-
2015
- 2015-11-23 CN CN201510818972.6A patent/CN105355165B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840657A (en) * | 2009-03-20 | 2010-09-22 | 上海金陵时威科技发展股份有限公司 | LED electronic display screen system |
| CN101986381A (en) * | 2010-11-04 | 2011-03-16 | 中兴通讯股份有限公司 | Method and device for recognizing liquid crystal display screen and terminal |
| CN102279816A (en) * | 2011-06-02 | 2011-12-14 | 北京百纳威尔科技有限公司 | LCD (liquid crystal display) automatic identification method and device |
| CN202677744U (en) * | 2012-05-03 | 2013-01-16 | 晋江益达光电科技有限公司 | Novel outdoor full color display screen |
| CN202855272U (en) * | 2012-09-12 | 2013-04-03 | 上海江森自控汽车电子有限公司 | LCD backlight constant current drive circuit based on operational amplifiernegative feedback circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105355165A (en) | 2016-02-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105355165B (en) | Display drive circuit, television set and display device | |
| CN101406107B (en) | Pulse width modulation based LED dimmer control | |
| CN103516961B (en) | Image processor and preparation method thereof and master card | |
| CN102509539A (en) | Method for automatically matching universal panel of display equipment system | |
| CN102394043A (en) | Integrated source electrode driving system | |
| CN105225643B (en) | A kind of backlight voltage x current adjustment circuit and method | |
| US9961950B2 (en) | Wirelessly controlled LED electronic necktie | |
| CN106328088A (en) | Driving circuit, driving method and semi-reflecting and semi-transmitting liquid crystal display | |
| CN107146571A (en) | Multifunctional LED curtain wall control system based on K64 MCU | |
| CN105761682B (en) | Electronic device and backlight control method of display | |
| CN105161015A (en) | Telescopic LED display screen | |
| CN205948380U (en) | Electronic building block | |
| CN202838923U (en) | Minitype near-eye display connector drive and control circuit structure | |
| CN112951148B (en) | Two-in-one multimedia playing box, display screen splicing configurator and spliced display system | |
| CN206179031U (en) | BLE accuse lock equipment | |
| CN207440481U (en) | The liquid crystal display device of intelligent dimming | |
| TW201523576A (en) | Transmission method for display device | |
| CN109754748A (en) | A kind of driving circuit of display panel, display panel and display device | |
| CN104616622A (en) | LED (Light Emitting Diode) display screen module with memory function | |
| US20170064784A1 (en) | Led package structure with an integrated pin to transmit operation power and control signals | |
| US9204515B2 (en) | Light source module, light source module driving circuit and driving method | |
| CN206283310U (en) | LED display | |
| CN215182989U (en) | Digital screen capable of controlling respirable single-point single control without lamp driver | |
| CN206546694U (en) | A kind of display device | |
| CN206154317U (en) | Open -ended modularization education robot control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |