CN106782266A - A kind of display screen drive control method, device and display screen drive control circuit - Google Patents
A kind of display screen drive control method, device and display screen drive control circuit Download PDFInfo
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- CN106782266A CN106782266A CN201611267607.1A CN201611267607A CN106782266A CN 106782266 A CN106782266 A CN 106782266A CN 201611267607 A CN201611267607 A CN 201611267607A CN 106782266 A CN106782266 A CN 106782266A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
The present invention discloses a kind of display screen drive control method, device and display screen drive control circuit, and the method includes：Receive hardware initialization instruction so that master controller enters fast attack mode；Under the fast attack mode, start the editor of one-off programming instruction；According to the content of edit that the one-off programming is instructed, display screen is driven.Display screen initialization time can not only be shortened using technical solution of the present invention, the memory headroom of display screen can also be saved.
Description
Technical field
The present invention relates to electric and electronic technical field, and in particular to a kind of display screen drive control method, device and display
Screen drive control circuit.
Background technology
With continuing to develop for Power Electronic Technique, power electronic product species emerges in an endless stream, and increasing intelligence sets
It is standby to arise at the historic moment.Why smart machine is widely used by people, and one is embodied in human-computer interaction function the reason for critically important.Its
In, display screen turns into the indispensable part of smart machine.Interacted by the display screen and people of touch intelligent equipment.
Therefore, in the development process of smart machine, the debugging of display screen is just particularly important.
At present, Android is most widely used intelligent movable device operating system at present, and most of display screen drives
It is all based on the display framework of Android platform.With the continuous improvement of user's request, the update of display screen is also very frequent, from
Liquid crystal display (Liquid Crystal Display, abbreviation LCD) screen is to thin film transistor (TFT) (Thin Film
Transistor, abbreviation TFT) shield and arrive Organic Electricity laser display (Organic Light-Emitting Diode, abbreviation again
OLED) shield.Although the display effect of display screen is become better and better, and circuit but becomes increasingly complex, display screen is matched somebody with somebody during initializing
The register put is also more and more.
However, during inventor designs the display screen driving, inventor has found at least exist in the prior art
Following technical problem：
The startup time of existing display screen is more long, and especially the time loss of display screen initialization is more long.
The content of the invention
It is existing to solve the invention provides a kind of display screen drive control method, device and display screen drive control circuit
There is the startup time of display screen in technology more long, especially the time loss problem more long of display screen initialization.
According to an aspect of the invention, there is provided a kind of display screen drive control method, the method includes：
Receive hardware initialization instruction so that master controller enters fast attack mode；
Under the fast attack mode, start the editor of one-off programming instruction；
According to the content of edit that the one-off programming is instructed, display screen is driven.
According to another aspect of the present invention, there is provided a kind of master controller, the master controller includes：
Instruction reception unit, for receiving hardware initialization instruction so that master controller enters fast attack mode；
Start unit, under the fast attack mode, starting the editor of one-off programming instruction；
Driver element, for the content of edit instructed according to the one-off programming, drives display screen.
According to a further aspect of the invention, there is provided a kind of display screen drive control method, the method includes：Receive one
The analysis result of secondary property programming instruction；
According to analysis result, display screen writes initial configuration file in internal memory；
Initial configuration file write-in internal memory is sent completely to instruct to master controller.
According to a further aspect of the invention, there is provided a kind of display screen, the display screen includes：
Receiving unit, the analysis result for receiving one-off programming instruction；
Writing unit, for according to analysis result, by initial configuration file write-in internal memory；
Instruction sending unit, instructs to master controller for being sent completely initial configuration file write-in internal memory.
According to a further aspect of the invention, there is provided a kind of display screen drive control circuit, the circuit includes：
Initialization voltage unit and initialization complete voltage cell；
The initialization voltage unit, order is enabled for receiving the initialization voltage of display screen of master controller transmission,
Initialization voltage according to the display screen enables order, starts or close the initialization voltage unit；
The initialization completes voltage cell, makes for receiving the initialization completion voltage of display screen of master controller transmission
Can order, the initialization according to the display screen completes voltage and enables order, start or close the initialization completion voltage
Unit.
The beneficial effects of the invention are as follows：Instructed by receiving hardware initialization so that master controller enters quick startup mould
Formula；Under the fast attack mode, start the editor of one-off programming instruction；According to the editor that the one-off programming is instructed
Content, drives display screen.Technical solution of the present invention is exactly by master controller under fast attack mode, using one-off programming
The content of edit that instruction is realized the one-off programming programming flow of display screen and instructed by the one-off programming, drives display
Screen.Due to the one-off programming mode for driving display screen to use in the present invention so that the time of display screen initialization shortens；And by
The one-off programming process occupancy display screen resource of display screen is less in technical solution of the present invention, so as to improve display screen
Resource utilization.
Brief description of the drawings
Fig. 1 is a kind of display screen drive control method flow diagram of one embodiment of the invention；
Fig. 2 is a kind of structured flowchart of master controller of one embodiment of the invention；
Fig. 3 is another display screen drive control method flow diagram of one embodiment of the invention；
Fig. 4 is a kind of structured flowchart of display screen of one embodiment of the invention；
Fig. 5 is a kind of display screen drive control circuit structure block diagram of one embodiment of the invention；
Fig. 6 is a kind of display screen drive control circuit diagram of one embodiment of the invention；
Fig. 7 is a kind of power drives timing diagram of display screen drive control circuit of one embodiment of the invention.
Specific embodiment
A kind of prior art that display screen based on Android system framework drives is：The display effect of display screen is increasingly
It is good, but circuit but becomes increasingly complex, and the register that display screen is configured during initializing is also more and more, so that display screen
The startup time it is more long, especially display screen initialization time loss it is more long.
Design concept of the invention is：The startup time for existing display screen is more long, and especially display screen is initialized
Time loss problem more long, technical solution of the present invention is instructed by receiving hardware initialization so that master controller entrance is quickly opened
Dynamic model formula；Under the fast attack mode, start the editor of one-off programming instruction；Instructed according to the one-off programming
Content of edit, drives display screen.Concretely, it is exactly by band one-off programming (one time program, abbreviation OTP) work(
Energy display screen, the startup time for solving display screen is more long, especially the time loss of display screen initialization problem more long.OTP
Can be generally divided into two processes：One-off programming programming OTP Programming and one-off programming are loaded into OTP
Loading.OTP Programming are to need the register value programming of configuration to be carried to display screen when display screen is initialized
In storage medium (for example：Flash memory Flash)；OTP Loading are reading in storage medium in the initialization procedure of display screen
To in register, make display screen normal work.OTP processes occupancy display screen resource is less, only need to increase suitable time-delay (for example：
About 10ms) wait loading to complete.
Embodiment one
Fig. 1 is a kind of flow chart of display screen drive control method of one embodiment of the invention, referring to Fig. 1, the method
Including：
101：Receive hardware initialization instruction so that master controller enters fast attack mode；
It should be noted that being instructed according to the hardware initialization, the initialization voltage for sending display screen enables order, makes
It is that it is powered that display screen drive control circuit is obtained by low-tension supply ELVDD_2V.
102：Under the fast attack mode, start the editor of one-off programming instruction；Concretely, receive and quickly open
Dynamic instruction, the quick enabled instruction carries one-off programming instruction；Instructed by one-off programming and realize master controller pair
The driving of display screen.
103：According to the content of edit that the one-off programming is instructed, display screen is driven.Concretely, described in parsing once
Property programming instruction, provides analysis result；By the analysis result, the display screen is sent to, so that the display screen is completed just
Beginningization configuration file writes internal memory；Receive the completion initial configuration file write-in internal memory instruction that the display screen sends；According to
The completion initial configuration file write-in internal memory instruction that the display screen sends, the initialization completion voltage for sending display screen is enabled
Order so that display screen drive control electricity routing power ELVDD_5V powers for it.
Embodiment two
Fig. 2 is a kind of structured flowchart of master controller of one embodiment of the invention, and the master controller 20 includes：
Instruction reception unit 201, for receiving hardware initialization instruction so that master controller enters fast attack mode；
Start unit 202, under the fast attack mode, starting the editor of one-off programming instruction；
Driver element 203, for the content of edit instructed according to the one-off programming, drives display screen.
It should be noted that the master controller also includes：Command sending unit, for being referred to according to the hardware initialization
Order, the initialization voltage for sending display screen enables order；
The start unit, specifically for receiving quick enabled instruction, the quick enabled instruction carries disposable volume
Cheng Zhiling；
The driver element, specifically for parsing the one-off programming instruction, provides analysis result；The parsing is tied
Really, the display screen is sent to, so that the display screen completes initial configuration file write-in internal memory；Receive the display screen hair
The completion initial configuration file write-in internal memory for sending is instructed；According to the completion initial configuration file write-in that the display screen sends
Internal memory is instructed, and the initialization for sending display screen completes voltage enable order.
Embodiment three
Fig. 3 is a kind of display screen drive control method flow diagram of one embodiment of the invention, referring to Fig. 3, the display screen
Drive control method includes：
301：Receive the analysis result of one-off programming instruction；
302：According to analysis result, display screen writes initial configuration file in internal memory；
303：Initial configuration file write-in internal memory is sent completely to instruct to master controller.
It should be noted that the method also includes：
Default initialization starts voltage threshold, delay time and initialization and completes voltage threshold；
It is described according to analysis result, step is specifically included during initial configuration file is write internal memory by display screen：
According to the analysis result, detect whether the initialization voltage enable terminal voltage of display screen reaches the initialization and open
Dynamic voltage threshold；
If reaching the initialization starts voltage threshold, the initial configuration file of the display screen is write into internal memory
In；
Internal memory, start-up study timer are write when initial configuration file is completed；
When the delay timer reaches the delay time, detect that the power management chip voltage of the display screen is enabled
Whether terminal voltage reaches the initialization completes voltage threshold；
If reach it is described initialization complete voltage threshold, be sent completely initial configuration file write-in internal memory instruct to
Master controller.
Example IV
Fig. 4 is a kind of structured flowchart of display screen of one embodiment of the invention, and the display screen 40 includes：
Receiving unit 401, the analysis result for receiving one-off programming instruction；
Writing unit 402, for according to analysis result, by initial configuration file write-in internal memory；
Instruction sending unit 403, instructs to master controller for being sent completely initial configuration file write-in internal memory.
It should be noted that the display screen also includes：
Preset unit, starts voltage threshold, delay time and initialization and completes voltage threshold for default initialization；
Said write unit, specifically for according to the analysis result, detecting the initialization voltage Enable Pin electricity of display screen
Whether pressure reaches the initialization starts voltage threshold；If reaching the initialization starts voltage threshold, by the display
In the initial configuration file write-in internal memory of screen；
Timing unit, for when completion initial configuration file write-in internal memory, start-up study timer；
Status information transmitting element, for reaching the delay time when the delay timer, detects the display screen
Power management chip voltage enable terminal voltage whether reach it is described initialization complete voltage threshold；If reaching the initialization
Voltage threshold is completed, is then sent completely initial configuration file write-in internal memory and is instructed to master controller.
Embodiment five
Because OTP Programming and OTP Loading processes are the drives of the display screen that technical solution of the present invention is used
Dynamic scheme, the OTP Programming and requirement of the OTP Loading processes to voltage are very strict, and the sequential of upper electricity must
Must strictly meet can just enter into OTP patterns, referring specifically to as shown in Figure 7.Positive back bias voltage is worked as in the electrifying timing sequence requirement of display screen
Forward bias (the Positive Power of display screen when control signal Swire enables display screen power supply chip Power Supply
Supply, abbreviation VSP) on electricity be not normal 5.6V but 2V, but the special Power Supply of display screen be cannot be defeated
Go out 2V, and now the negative bias (Negative Power Supply, abbreviation VSN) of display screen need normal upper electricity, 2V
The VSP of display screen will be switched to 5.6V from 2V after power supply certain time completion OTP.
Fig. 5 is a kind of display screen drive control circuit block diagram of one embodiment of the invention, and the circuit 50 includes：Initialization
Voltage cell 501 and initialization complete voltage cell 502；
The initialization voltage unit 501, life is enabled for receiving the initialization voltage of display screen of master controller transmission
Order, the initialization voltage according to the display screen enables order, starts or close the initialization voltage unit；
The initialization completes voltage cell 502, and electricity is completed for receiving the initialization of display screen of master controller transmission
Pressure enables order, and the initialization according to the display screen completes voltage and enables order, starts or closes the initialization and complete
Voltage cell.
Based on above example five, as shown in fig. 6, being the display screen drive control circuit diagram；Wherein described initialization
Voltage cell includes：First resistor R1, initialization voltage chip U1, second resistance R2, the first electric capacity C1 and the first diode D1；
The initialization completes voltage cell to be included：3rd resistor R3, initialization complete voltage chips U2, the 4th resistance R4 and the second electricity
Hold C2；
The first resistor R1 mono- terminates low-tension supply ELVDD_2V, another termination initialization voltage chip pin 6；
The initialization voltage chip U1 pins 5 connect the hair that master controller sends the initialization voltage enable order of display screen
Sending end ELVD_2V_EN；
The initialization voltage chip U1 pins 4 meet the low-tension supply ELVDD_2V；
The initialization voltage chip U1 pins 1 connect described second resistance R2 one end, another terminations of second resistance R2
Ground；
The first electric capacity C1 mono- terminates the initialization voltage chip U1 pins 2 and initialization voltage chip U1 pipes
The connection end of pin 3, the first electric capacity C1 other ends ground connection；
The initialization voltage chip U1 pins 2 connect the first diode D1 positive terminals；The first diode D1
The VSP of the image processor of negative pole termination display screen；
The termination power ELVDD_5V6 of the 3rd resistor R3 mono-, another termination initialization completes voltage chips U2 pipes
Pin 6；
The initialization completes voltage chips U2 pins 5 and connects the initialization completion voltage that the master controller sends display screen
Enable the transmitting terminal ELVD_5V6_EN of order；
The initialization completes voltage chips U2 pins 4 and meets the power supply ELVDD_5V6；
The initialization completes voltage chips U2 pins 1 and connects described 4th resistance R4 one end, the 4th resistance other end
Ground connection；
The second electric capacity C2 mono- terminates the initialization and completes voltage chips U2 pins 2 and the initialization completion voltage
The connection end of chip U2 pins 3, the second electric capacity C2 other ends ground connection；
The initialization completes voltage chips U2 pins 2 and the initialization completes voltage chips pin 3 and connects termination institute
State the VSP of the image processor of display screen.
The initialization voltage chip and described is controlled it should be noted that being sent by master controller and enabling control command
Initialization completes voltage chips and for display screen initialize the seamless switching of power supply, and in the defeated of the initialization voltage chip
Going out side increases diode D1, such that it is able to prevent the initialization from completing falling for the power supply ELVDD_5V6 voltages of voltage chips
Fill.
Based on above example, flow is driven to be described by taking BOE 4K TFT screens as an example below by way of implementing；When
On the TFT screens during electricity, specifically upper electric current journey is as follows：
Electricity on S1, display screen, low-pressure linear voltage-stablizer (Low Dropout Regulator, abbreviation LDO) output 2V work
That is low-tension supply ELVDD_2V output 2V work, for the inside of the display screen, each chip provides power supply, is initialized；
S2, the initialization voltage chip receive the initialization voltage enable order that master controller sends display screen, described
Low-tension supply ELVDD_2V provides electric energy for the forward bias Positive Power Supply of display screen, and display screen will be described
In the initial configuration file write-in internal memory of display screen；
S3, time delay 10ms, wait the initial configuration file write-in internal memory process of the display screen to complete；
S4, the initialization complete the initialization completion voltage enable that voltage chips receive the display screen that master controller sends
Order；The power supply ELVDD_5V6 provides electric energy for the Positive Bias of display screen, terminates OTP Loading processes, enters
The follow-up work of row.
When electricity under the TFT screens, specifically lower electric current journey is as follows：
Electricity under S1, equipment, carries out electricity work under the related power supply of display screen；
S2, main controller controls close the low-tension supply ELVDD_2V；
S3, time delay 10ms；
S4, main controller controls close the power supply ELVDD_5V6；
Electricity under S5, whole display screen circuit.
It should be noted that the wake-up flow of the display screen ibid electric current journey, dormancy flow with lower electric current journey, herein not
Repeat again.
The beneficial effects of the invention are as follows：Instructed by receiving hardware initialization so that master controller enters quick startup mould
Formula；Under the fast attack mode, start the editor of one-off programming instruction；According to the editor that the one-off programming is instructed
Content, drives display screen.Technical solution of the present invention is exactly by master controller under fast attack mode, using one-off programming
The content of edit that instruction is realized the one-off programming programming flow of display screen and instructed by the one-off programming, drives display
Screen.Due to the one-off programming mode for driving display screen to use in the present invention so that the time of display screen initialization shortens；And by
The one-off programming process occupancy display screen resource of display screen is less in technical solution of the present invention, so as to improve display screen
Resource utilization.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent substitution and improvements made within the spirit and principles in the present invention etc., are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of display screen drive control method, it is characterised in that the method includes：
Receive hardware initialization instruction so that master controller enters fast attack mode；
Under the fast attack mode, start the editor of one-off programming instruction；
According to the content of edit that the one-off programming is instructed, display screen is driven.
2. method according to claim 1, it is characterised in that the method also includes：
Instructed according to the hardware initialization, the initialization voltage for sending display screen enables order；
Under the fast attack mode, start the edit step of one-off programming instruction, including：
Quick enabled instruction is received, the quick enabled instruction carries one-off programming instruction；
According to the content of edit that the one-off programming is instructed, display screen step is driven, including：
The one-off programming instruction is parsed, analysis result is given；
By the analysis result, the display screen is sent to, so that the display screen completes initial configuration file write-in internal memory；
Receive the completion initial configuration file write-in internal memory instruction that the display screen sends；
According to the completion initial configuration file write-in internal memory instruction that the display screen sends, the initialization for sending display screen is completed
Voltage enables order.
3. a kind of master controller, it is characterised in that the master controller includes：
Instruction reception unit, for receiving hardware initialization instruction so that master controller enters fast attack mode；
Start unit, under the fast attack mode, starting the editor of one-off programming instruction；
Driver element, for the content of edit instructed according to the one-off programming, drives display screen.
4. master controller according to claim 2, it is characterised in that the master controller also includes：
Command sending unit, for being instructed according to the hardware initialization, the initialization voltage for sending display screen enables order；
The start unit, specifically for receiving quick enabled instruction, the quick enabled instruction carries one-off programming and refers to
Order；
The driver element, specifically for parsing the one-off programming instruction, provides analysis result；By the analysis result,
The display screen is sent to, so that the display screen completes initial configuration file write-in internal memory；The display screen is received to send
Completion initial configuration file write-in internal memory instruction；According in the completion initial configuration file write-in that the display screen sends
Instruction is deposited, the initialization for sending display screen completes voltage enable order.
5. a kind of display screen drive control method, it is characterised in that the method includes：
Receive the analysis result of one-off programming instruction；
According to analysis result, display screen writes initial configuration file in internal memory；
Initial configuration file write-in internal memory is sent completely to instruct to master controller.
6. method according to claim 5, it is characterised in that the method also includes：
Default initialization starts voltage threshold, delay time and initialization and completes voltage threshold；
It is described according to analysis result, step is specifically included during initial configuration file is write internal memory by display screen：
According to the analysis result, detect that the initialization voltage of display screen enables whether terminal voltage reaches the initialization startup electricity
Pressure threshold value；
If reaching the initialization starts voltage threshold, by the initial configuration file write-in internal memory of the display screen；
Internal memory, start-up study timer are write when initial configuration file is completed；
When the delay timer reaches the delay time, the power management chip voltage Enable Pin electricity of the display screen is detected
Whether pressure reaches the initialization completes voltage threshold；
If reaching the initialization completes voltage threshold, it is sent completely initial configuration file write-in internal memory and instructs to master control
Device processed.
7. a kind of display screen, it is characterised in that the display screen includes：
Receiving unit, the analysis result for receiving one-off programming instruction；
Writing unit, for according to analysis result, by initial configuration file write-in internal memory；
Instruction sending unit, instructs to master controller for being sent completely initial configuration file write-in internal memory.
8. display screen according to claim 7, it is characterised in that the display screen also includes：
Preset unit, starts voltage threshold, delay time and initialization and completes voltage threshold for default initialization；
Said write unit, specifically for according to the analysis result, detecting that the initialization voltage of display screen enables terminal voltage and is
It is no to reach the initialization startup voltage threshold；If reaching the initialization starts voltage threshold, by the display screen
In initial configuration file write-in internal memory；
Timing unit, for when completion initial configuration file write-in internal memory, start-up study timer；
Status information transmitting element, for reaching the delay time when the delay timer, detects the electricity of the display screen
Source control chip voltage enables whether terminal voltage reaches the initialization completion voltage threshold；If reaching the initialization to complete
Voltage threshold, then be sent completely initial configuration file write-in internal memory and instruct to master controller.
9. a kind of display screen drive control circuit, it is characterised in that the circuit includes：Initialization voltage unit and initialization are completed
Voltage cell；
The initialization voltage unit, order is enabled for receiving the initialization voltage of display screen of master controller transmission, according to
The initialization voltage of the display screen enables order, starts or close the initialization voltage unit；
The initialization completes voltage cell, and voltage enable life is completed for receiving the initialization of display screen of master controller transmission
Order, the initialization according to the display screen completes voltage and enables order, starts or closes the initialization and complete voltage cell.
10. circuit according to claim 9, it is characterised in that the initialization voltage unit includes：First resistor, just
Beginningization voltage chips, second resistance, the first electric capacity and the first diode；The initialization completes voltage cell to be included：3rd electricity
Resistance, initialization complete voltage chips, the 4th resistance and the second electric capacity；
The first resistor one terminates low-tension supply ELVDD_2V, another termination initialization voltage chip pin 6；
The initialization voltage chip pin 5 connects the transmitting terminal that master controller sends the initialization voltage enable order of display screen；
The initialization voltage chip pin 4 meets the low-tension supply ELVDD_2V；
The initialization voltage chip pin 1 connects described second resistance one end, the second resistance other end ground connection；
First electric capacity one terminates the initialization voltage chip pin 2 and the connection end of initialization voltage chip pin 3,
The first electric capacity other end ground connection；
The initialization voltage chip pin 2 connects the first diode cathode end；The first diode cathode termination is aobvious
The image processor of display screen；
The termination power ELVDD_5V6 of the 3rd resistor one, another termination initialization completes voltage chips pin 6；
The initialization completes voltage chips pin 5 and connects the initialization completion voltage enable life that the master controller sends display screen
The transmitting terminal of order；
The initialization completes voltage chips pin 4 and meets the power supply ELVDD_5V6；
The initialization completes voltage chips pin 1 and connects described 4th resistance one end, the 4th resistance other end ground connection；
Second electric capacity one terminates the initialization and completes voltage chips pin 2 and the initialization completion voltage chips pin
3 connection ends, the second electric capacity other end ground connection；
The initialization completes voltage chips pin 2 and the initialization completes voltage chips pin 3 and connects the termination display
The image processor of screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611267607.1A CN106782266B (en) | 2016-12-31 | 2016-12-31 | Display screen drive control method and device and display screen drive control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611267607.1A CN106782266B (en) | 2016-12-31 | 2016-12-31 | Display screen drive control method and device and display screen drive control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106782266A true CN106782266A (en) | 2017-05-31 |
| CN106782266B CN106782266B (en) | 2020-10-27 |
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| CN201611267607.1A Active CN106782266B (en) | 2016-12-31 | 2016-12-31 | Display screen drive control method and device and display screen drive control circuit |
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| CN110069223A (en) * | 2018-01-23 | 2019-07-30 | 上海济丽信息技术有限公司 | A kind of intelligent large-screen splicing display unit based on android system |
| CN110444162A (en) * | 2019-07-18 | 2019-11-12 | 武汉华星光电半导体显示技术有限公司 | Display device and power management chip for display device |
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| Publication number | Publication date |
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| CN106782266B (en) | 2020-10-27 |
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