CN109801660A - Read-write operation control method, memory and the display panel of display panel - Google Patents
Read-write operation control method, memory and the display panel of display panel Download PDFInfo
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- CN109801660A CN109801660A CN201811587979.1A CN201811587979A CN109801660A CN 109801660 A CN109801660 A CN 109801660A CN 201811587979 A CN201811587979 A CN 201811587979A CN 109801660 A CN109801660 A CN 109801660A
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Abstract
This application discloses a kind of read-write operation control methods of display panel, the read-write operation control method of the display panel is applied to memory, the read-write transmission line for being used for transmission read-write is equipped between the memory and sequence controller, the read-write operation control method of the display panel is the following steps are included: when receiving the preset signals that the sequence controller is sent, receive the read-write that the sequence controller is transmitted by the reading writing signal line, wherein, the read-write is the synchronization signal of preset signals；Determine the corresponding object run of the read-write, wherein the object run is read operation or write operation；It controls the memory and carries out the object run.A kind of memory and display panel is also disclosed in the application.The application avoids sequence controller code from being written over.
Description
Technical field
This application involves display equipment technical field more particularly to a kind of read-write operation control method of display panel, deposit
Reservoir and display panel.
Background technique
In TFT-LCD (thin film transistor-liquid crystal display, tft liquid crystal
Display) driving circuit design in, TCON (Timer Control Register, sequence controller) can send coherent signal to
Driver (driving chip), their attribute and relativeness can carry out corresponding modification according to application requirement by user, this
Partial data is integrated into the binary documents of TCON code (code), is initiated by personal computer, controls via the TCON of each manufacturer
Tool and wiring, burning is into TCON peripheral components memory, and after power-off powers on, TCON is directly to memory read data, by phase
It closes setting and is sent to driver, wherein control TCON read-write is controlled by WP (Write Protect, write-protect), and WP is height
Shi Jinhang read operation, WP are written and read when being low.
Writing code is usually to complete after PCB (Printed Circuit Board, printed circuit board) piece is completed.And
It in panel factory, after bonding (binding) completion, needs to carry out power up test, at this time because WP is height, progress is to read
Operation, once but WP be interfered and be pulled low so that the read operation of script is identified as write operation by memory, so as to cause
The code of memory is written over, and blank screen occurs.
Summary of the invention
The main purpose of the application is to provide read-write operation control method, memory and the display surface of a kind of display panel
Plate, it is intended to solve the problems, such as that the code of memory is written over.
To achieve the above object, the read-write operation control method of a kind of display panel provided by the present application, the display surface
The read-write operation control method of plate is applied to memory, is equipped between the memory and sequence controller and is used for transmission read-write letter
Number read-write transmission line, the read-write operation control method of the display panel the following steps are included:
When receiving the preset signals that the sequence controller is sent, receives the sequence controller and pass through the read-write
The read-write of signal wire transmission, wherein the read-write is the synchronization signal of preset signals；
Determine the corresponding object run of the read-write, wherein the object run is read operation or write operation；
It controls the memory and carries out the object run.
In one embodiment, the step of determination read-write corresponding object run includes:
Judge whether the voltage of the read-write is greater than or equal to preset threshold；
When the voltage of the read-write is greater than or equal to preset threshold, the object run is read operation；
When the voltage of the read-write is less than preset threshold, the object run is write operation.In one embodiment,
After the step of determination read-write corresponding object run, further includes: detectd according to the voltage of the preset signals
Survey the instruction that the sequence controller is sent；
Judge whether the corresponding operation of described instruction is consistent with the object run；
When the corresponding operation of described instruction is consistent with the object run, executes the control memory and carry out institute
The step of stating object run.
In one embodiment, it is described judge described instruction it is corresponding operation with the whether consistent step of the object run it
Afterwards, further includes:
When the corresponding operation of described instruction is inconsistent with the object run, controls the memory and carry out read operation.
In one embodiment, it is described judge described instruction it is corresponding operation with the whether consistent step of the object run it
Afterwards, further includes:
When the corresponding operation of described instruction is inconsistent with the object run, controls the memory and be not responding to the mesh
Mark operation.
In one embodiment, the step of control memory is not responding to the object run include:
Read operation module and the write operation module controlled in the memory powers off.
In one embodiment, the memory includes read operation module and write operation module, is carried out in the memory
When write operation, control the write operation module power on and the read operation module power-off；Read operation is carried out in the memory
When, control the read operation module power on and the write operation module power-off.
In one embodiment, the control method of the display panel, further includes:
The data that the read operation is read are transmitted to the sequence controller.
To achieve the above object, the application also provides a kind of memory, and the memory is stored with can be by least one
The computer executable instructions that reason device executes make when the computer executable instructions are executed by least one described processor
It obtains a processor and executes following steps:
When receiving the preset signals that the sequence controller is sent, receives the sequence controller and pass through the read-write
The read-write of signal wire transmission, wherein the read-write is the synchronization signal of preset signals；
Determine the corresponding object run of the read-write, wherein the object run is read operation or write operation；
It controls the memory and carries out the object run.
To achieve the above object, the application also provides a kind of display panel, and the display panel includes memory, timing control
Device processed and at least one processor, wherein
Read-write transmission line is equipped between the memory and the sequence controller, the memory is stored with can be described
The computer executable instructions that at least one processor executes, the computer executable instructions are by least one described processor
When execution, so that a processor executes following steps:
When receiving the preset signals that the sequence controller is sent, receives the sequence controller and pass through the read-write
The read-write of signal wire transmission, wherein the read-write is the synchronization signal of preset signals；
Determine the corresponding object run of the read-write, wherein the object run is read operation or write operation；
It controls the memory and carries out the object run.
Read-write operation control method, memory and the display panel of display panel provided by the present application, sequence controller with
The reading writing signal line of transmission read-write is set as between memory, sequence controller is sending preset signals to memory
When, the read-write synchronous with preset signals can be generated, and while sending preset signals to memory, read-write is led to
It crosses read-write transmission line and is sent to memory to memory, so that memory carries out read operation according to the voltage of read-write or writes
Operation；Since sequence controller and memory are directly connected to by read-write transmission line, so that the read-write of read-write transmission line
It is not easily susceptible to interfere, it is synchronous with preset signals to read while write signal, and memory read-write is enabled accurately to carry out reading behaviour
Work or write operation avoid the problem that memory occurs for read operation being identified as write operation appearance, guarantee that code will not be written over.
Detailed description of the invention
Fig. 1 be the invention relates to display panel hardware structural diagram；
Fig. 2 is the flow diagram of one embodiment of read-write operation control method of the application display panel；
Fig. 3 is the refinement flow diagram of step S20 in Fig. 2；
Fig. 4 is a structural schematic diagram of memory and sequence controller in the application；
Fig. 5 is the flow diagram of another embodiment of read-write operation control method of the application display panel.
The embodiments will be further described with reference to the accompanying drawings for realization, functional characteristics and the advantage of the application purpose.
Specific embodiment
It should be appreciated that specific embodiment described herein is only used to explain the application, it is not used to limit the application.
The primary solutions of the embodiment of the present application are: when receiving the preset signals that the sequence controller is sent,
Receive the read-write that the sequence controller is transmitted by the reading writing signal line, wherein the read-write is default letter
Number synchronization signal；Determine the corresponding object run of the read-write, wherein the object run is read operation or writes behaviour
Make；It controls the memory and carries out the object run.
Since sequence controller and memory are directly connected to by read-write transmission line, so that the read-write letter of read-write transmission line
It number is not easily susceptible to interfere, it is synchronous with preset signals to read while write signal, and memory read-write is accurately read
Operation or write operation avoid the problem that memory occurs for read operation being identified as write operation appearance, guarantee that code will not be changed
It writes.
As a kind of implementation, display panel can be as shown in Figure 1.
For the embodiment of the present application scheme what is involved is display panel, display panel includes: processor 1001, such as CPU, storage
Device 1002, communication bus 1003, sequence controller 1004.Wherein, it is set as between sequence controller 1004 and memory
The read-write transmission line of read-write is transmitted, communication bus 1003 is set as realizing the connection communication between these components.
Memory 1002 can be high speed RAM memory, be also possible to stable memory (non-
), such as magnetic disk storage volatilememory.As shown in Figure 1, as in a kind of memory 1003 of computer storage medium
It may include the detection program of colored filter；And processor 1001 can be set to call the display stored in memory 1002
The read-write operation of panel controls program, and executes following operation:
When receiving the preset signals that the sequence controller is sent, receives the sequence controller and pass through the read-write
The read-write of signal wire transmission, wherein the read-write is the synchronization signal of preset signals；
Determine the corresponding object run of the read-write, wherein the object run is read operation or write operation；
It controls the memory and carries out the object run.
In one embodiment, processor 1001 can be set to call the read-write of the display panel stored in memory 1002
Operating control procedure, and execute following operation:
Judge whether the voltage of the read-write is greater than or equal to preset threshold；
When the voltage of the read-write is greater than or equal to preset threshold, the object run is read operation；
When the voltage of the read-write is less than preset threshold, the object run is write operation.In one embodiment,
Processor 1001 can be set to call memory 1002 in store display panel read-write operation control program, and execute with
Lower operation:
The instruction sent according to sequence controller described in the detecting voltage of the preset signals；
Judge whether the corresponding operation of described instruction is consistent with the object run；
When the corresponding operation of described instruction is consistent with the object run, executes the control memory and carry out institute
The step of stating object run.
In one embodiment, processor 1001 can be set to call the read-write of the display panel stored in memory 1002
Operating control procedure, and execute following operation:
When the corresponding operation of described instruction is inconsistent with the object run, controls the memory and carry out read operation.
In one embodiment, processor 1001 can be set to call the read-write of the display panel stored in memory 1002
Operating control procedure, and execute following operation:
When the corresponding operation of described instruction is inconsistent with the object run, controls the memory and be not responding to the mesh
Mark operation.
In one embodiment, the step of control memory is not responding to the object run include:
Read operation module and the write operation module controlled in the memory powers off.
In one embodiment, processor 1001 can be set to call the read-write of the display panel stored in memory 1002
Operating control procedure, and execute following operation:
The memory includes read operation module and write operation module, when the memory carries out write operation, control
The write operation module powers on and read operation module power-off；When the memory carries out read operation, the reading is controlled
Operation module powers on and write operation module power-off.
In one embodiment, processor 1001 can be set to call the read-write of the display panel stored in memory 1002
Operating control procedure, and execute following operation:
The data that the read operation is read are transmitted to the sequence controller.
The present embodiment is set as the reading of transmission read-write according to above scheme, between sequence controller and memory
Write signal line, sequence controller can generate the read-write synchronous with preset signals when sending preset signals to memory, and
While sending preset signals to memory, read-write is sent to memory to memory by read-write transmission line, is made
It obtains memory and read operation or write operation is carried out according to the voltage of read-write；Due to read-write transmission line by sequence controller with deposit
Reservoir is directly connected to, so that the read-write of read-write transmission line is not easily susceptible to interfere, reads while write signal and preset signals
It is synchronous, enable memory read-write accurately to carry out read operation or write operation, memory is avoided to occur read operation
The problem of being identified as write operation appearance guarantees that code will not be written over.
Based on above-mentioned hardware architecture, the embodiment of the read-write operation control method of the application display panel is proposed.
It is an embodiment of the read-write operation control method of the application display panel, the display panel referring to Fig. 2, Fig. 2
Read-write operation control method the following steps are included:
Step S10 receives the sequence controller and passes through when receiving the preset signals that the sequence controller is sent
The read-write of the reading writing signal line transmission, wherein the read-write is the synchronization signal of preset signals；
In example technique, (Synchronous Data Adapter, serial data are total by SDA for sequence controller
Line) preset signals are sent to memory, and preset signals will receive be laid out on display bread board the parasitic capacitance on cabling with
And the influence of the factors such as high-frequency, by the voltage pull-down of preset signals；And the voltage of preset signals is more than or equal to default
When threshold value, memory is reading instruction to the instruction that preset signals identify, when the voltage of preset signals is less than preset threshold, storage
Device is write command to the instruction that preset signals identify.If preset signals are interfered, make the reduction of its voltage, so that storage
The reading instruction of script is identified as write command by device, to rewrite to code, display panel is caused blank screen occur.
In this regard, the read-write transmission line being connected directly is arranged between memory and sequence controller in the application, read-write is passed
The read-write of defeated line transmission is that the synchronization signal of preset signals namely display panel generate the read-write letter synchronous with preset signals
Number, and while transmitting preset signals to memory by SDA line, by read-write by read-write transmission line to depositing
Reservoir.It should be noted that memory can be EEPROM (Electrically Erasable Programmable Read
Only Memory, band electric erasable and programmable volume read-only memory).Read-write protocol between sequence controller and memory is I2C
(Inter-Integrated Circuit, twin wire universal serial bus) read-write protocol namely sequence controller pass through serial data
Bus (SDA) sends preset signals to memory with data line (SCL).
Step S20 determines the corresponding object run of the read-write, wherein the object run is read operation or writes
Operation；
In the present embodiment, executing subject is the processor in memory or display panel, and memory is believed according to read-write
Number voltage determine object run, specifically, referring to figure 3., i.e. step S10 includes:
Step S21, judges whether the voltage of the read-write is greater than or equal to preset threshold；
Step S22, when the voltage of the read-write is greater than or equal to preset threshold, the object run is to read behaviour
Make；
Step S23, when the voltage of the read-write is less than preset threshold, the object run is write operation.
Preset signals can be sinusoidal signal or the irregular other kinds of signal of voltage change, and read-write is pre-
It is big in the voltage when preset signals if the synchronization signal namely the type of read-write and the type of preset signals of signal are identical
In or be equal to preset threshold when, memory carry out read operation, and the voltage of preset signals be less than preset threshold when, memory carry out
Write operation；Since there are the interference problems of preset signals；The application judges memory by being not easy disturbed read-write
It is operated, namely determines that object run, object run are read operation or write operation according to the voltage of read-write.
If the voltage of read-write is greater than or equal to preset threshold, object run is read operation, if read-write
When voltage is less than preset threshold, object run is write operation, and preset threshold can be any appropriate numerical value.
Certainly, preset signals can also be pulse signal, and when preset signals are pulse signal, preset signals are in high electricity
Usually, memory carries out read operation, and when preset signals are in low level, memory carries out write operation；Certainly, preset signals by
Interference, it is also possible to so that part high level becomes low level, namely memory be made to be identified as the read operation of script to write behaviour
Make.
Step S30 controls the memory and carries out the object run；
After display panel determines object run, i.e., controllable memory performance objective operation.It should be noted that storage
It include read operation module and write operation module in device, referring to Fig. 4, read operation module is connect with write operation module respectively at SDA,
And corresponding switch is provided on connection circuit, the switch on the connection circuit of read operation module and SDA line is S " ', write operation
Switch on the connection circuit of module and SDA elder generation is S ".When memory carries out write operation, control write operation module is powered on,
Namely it is closed S " and disconnects S " '；When memory carries out read operation.Control read operation module powers on, namely is closed S " ' and breaks
Open S ".When memory carries out read operation, the data that can read read operation are sent to sequence controller.
Transmission read-write letter is set as in technical solution provided in this embodiment, between sequence controller and memory
Number reading writing signal line, sequence controller to memory send preset signals when, the read-write synchronous with preset signals can be generated
Signal, and while sending preset signals to memory, read-write is sent to by read-write transmission line to memory and is deposited
Reservoir, so that memory carries out read operation or write operation according to the voltage of read-write；Due to reading and writing transmission line for timing control
Device processed is directly connected to memory so that read-write transmission line read-write be not easily susceptible to interfere, read while write signal with
Preset signals are synchronous, enable memory read-write accurately to carry out read operation or write operation, memory is avoided to occur
The problem of read operation is identified as write operation appearance guarantees that code will not be written over.
It is another embodiment of the read-write operation control method of the application display panel, the step S20 referring to Fig. 5, Fig. 5
Later, further includes:
Step S40, the instruction sent according to sequence controller described in the detecting voltage of the preset signals；
Step S50 judges whether the corresponding operation of described instruction is consistent with the object run；
Step S60 executes the control storage when the corresponding operation of described instruction is consistent with the object run
Device carries out the step of object run；
Step S70 controls the memory and carries out when the corresponding operation of described instruction is inconsistent with the object run
Read operation；
With continued reference to Fig. 4, it is equipped with detecting mechanism in memory, memory detects the voltage of preset signals on SDA line, with
Corresponding instruction is determined according to the voltage of preset signals, the voltage of the preset signals on SDA line is greater than or equal to preset threshold
When, the instruction of memory detecting is reading instruction, if the voltage of the preset signals on SDA line is less than preset threshold, memory is detectd
The instruction of survey is write command.
After detecting instruction, need the corresponding operation of decision instruction whether consistent with object run, if unanimously, then controlling
Memory performance objective operation processed then controls memory and carries out read operation if inconsistent；For example, object run is read operation
(voltage of read-write is greater than or equal to preset threshold), if the instruction detected is reading instruction namely the corresponding behaviour of reading instruction
As read operation, at this point, control memory carries out object run, namely read operation is carried out；If the instruction detected is write command,
The corresponding operation of write command is write operation, at this point, memory can determine that the instruction is interfered namely what TCON was sent originally is
Reading instruction, rather than write command, at this point, control memory carry out read operation namely memory control read operation module power on into
Row read operation.
In addition, controllable memory is not responding to the instruction, does not ring when instructing corresponding operation inconsistent with object run
Should instruct can be realized by powering off read operation module and write operation module, namely disconnect S " and S " '.
In technical solution provided in this embodiment, memory detects the finger that sequence controller is sent according to preset signals
It enables, and whether the corresponding operation of decision instruction consistent with object run, to judge whether preset signals are interfered, thus
Corresponding operation is executed, code is avoided to be written over.
The application also provides a kind of memory, and the memory is stored with the computer that can be executed by least one processor
Executable instruction, when the computer executable instructions are executed by least one described processor, so that a processor executes
Following steps:
When receiving the preset signals that the sequence controller is sent, receives the sequence controller and pass through the read-write
The read-write of signal wire transmission, wherein the read-write is the synchronization signal of preset signals；
Determine the corresponding object run of the read-write, wherein the object run is read operation or write operation；
It controls the memory and carries out the object run.
The application also provides a kind of display panel, and the display panel includes memory, sequence controller and at least one
A processor, wherein
Read-write transmission line is equipped between the memory and the sequence controller, the memory is stored with can be described
The computer executable instructions that at least one processor executes, the computer executable instructions are by least one described processor
When execution, so that a processor executes following steps:
When receiving the preset signals that the sequence controller is sent, receives the sequence controller and pass through the read-write
The read-write of signal wire transmission, wherein the read-write is the synchronization signal of preset signals；
Determine the corresponding object run of the read-write, wherein the object run is read operation or write operation；
It controls the memory and carries out the object run.
Above-mentioned the embodiment of the present application serial number is for illustration only, does not represent the advantages or disadvantages of the embodiments.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, the technical solution of the application substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that terminal device (it can be mobile phone,
Computer, server, television set or network equipment etc.) execute method described in each embodiment of the application.
The above is only preferred embodiment of the present application, are not intended to limit the scope of the patents of the application, all to utilize this Shen
Please equivalent structure or equivalent flow shift made by specification and accompanying drawing content, be applied directly or indirectly in other relevant skills
Art field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of read-write operation control method of display panel, which is characterized in that the read-write operation controlling party of the display panel
Method is applied to memory, and the read-write transmission line for being used for transmission read-write, institute are equipped between the memory and sequence controller
State the read-write operation control method of display panel the following steps are included:
When receiving the preset signals that the sequence controller is sent, receives the sequence controller and pass through the read-write
The read-write of line transmission, wherein the read-write is the synchronization signal of preset signals；
Determine the corresponding object run of the read-write, wherein the object run is read operation or write operation；
It controls the memory and carries out the object run.
2. the read-write operation control method of display panel as described in claim 1, which is characterized in that the determination read-write
The step of signal corresponding object run includes:
Judge whether the voltage of the read-write is greater than or equal to preset threshold；
When the voltage of the read-write is greater than or equal to preset threshold, the object run is read operation；
When the voltage of the read-write is less than preset threshold, the object run is write operation.
3. the read-write operation control method of display panel as described in claim 1, which is characterized in that the determination read-write
After the step of signal corresponding object run, further includes:
The instruction sent according to sequence controller described in the detecting voltage of the preset signals；
Judge whether the corresponding operation of described instruction is consistent with the object run；
When the corresponding operation of described instruction is consistent with the object run, executes the control memory and carry out the mesh
The step of mark operation.
4. the read-write operation control method of display panel as claimed in claim 3, which is characterized in that the judgement described instruction
After corresponding operation and the whether consistent step of the object run, further includes:
When the corresponding operation of described instruction is inconsistent with the object run, controls the memory and carry out read operation.
5. the read-write operation control method of display panel as claimed in claim 3, which is characterized in that the judgement described instruction
After corresponding operation and the whether consistent step of the object run, further includes:
When the corresponding operation of described instruction is inconsistent with the object run, controls the memory and be not responding to the target behaviour
Make.
6. the read-write operation control method of display panel as claimed in claim 5, which is characterized in that the control storage
Device is not responding to the step of object run and includes:
Read operation module and the write operation module controlled in the memory powers off.
7. the read-write operation control method of display panel as claimed in any one of claims 1 to 6, which is characterized in that the storage
Device includes that read operation module and write operation module control in the write operation module when the memory carries out write operation
The electric and described read operation module power-off；The memory carry out read operation when, control the read operation module power on and
The write operation module power-off.
8. the read-write operation control method of display panel as claimed in any one of claims 1 to 6, which is characterized in that the display
The control method of panel, further includes:
The data that the read operation is read are transmitted to the sequence controller.
9. a kind of memory, which is characterized in that the memory is stored with the computer that can be executed by least one processor can
Execute instruction, when the computer executable instructions are executed by least one described processor so that processor execute with
Lower step:
When receiving the preset signals that the sequence controller is sent, receives the sequence controller and pass through the read-write
The read-write of line transmission, wherein the read-write is the synchronization signal of preset signals；
Determine the corresponding object run of the read-write, wherein the object run is read operation or write operation；
It controls the memory and carries out the object run.
10. a kind of display panel, which is characterized in that the display panel include memory, sequence controller and at least one
Processor, wherein
Between the memory and the sequence controller be equipped with read-write transmission line, the memory be stored with can by it is described at least
The computer executable instructions that one processor executes, the computer executable instructions are executed by least one described processor
When, so that a processor executes following steps:
When receiving the preset signals that the sequence controller is sent, receives the sequence controller and pass through the read-write
The read-write of line transmission, wherein the read-write is the synchronization signal of preset signals；
Determine the corresponding object run of the read-write, wherein the object run is read operation or write operation；
It controls the memory and carries out the object run.
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| CN201811587979.1A CN109801660A (en) | 2018-12-24 | 2018-12-24 | Read-write operation control method, memory and the display panel of display panel |
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| CN107799045A (en) * | 2016-09-05 | 2018-03-13 | 奇景光电股份有限公司 | Display panel drive device, display and its operating method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822438A (en) * | 2022-04-27 | 2022-07-29 | 长沙惠科光电有限公司 | Drive circuit and display device |
| CN114822438B (en) * | 2022-04-27 | 2023-09-19 | 长沙惠科光电有限公司 | Driving circuit and display device |
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