CN109801580A - Display panel and its overcurrent protection method and computer readable storage medium - Google Patents
Display panel and its overcurrent protection method and computer readable storage medium Download PDFInfo
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- CN109801580A CN109801580A CN201811586554.9A CN201811586554A CN109801580A CN 109801580 A CN109801580 A CN 109801580A CN 201811586554 A CN201811586554 A CN 201811586554A CN 109801580 A CN109801580 A CN 109801580A
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Abstract
This application discloses a kind of overcurrent protection methods of display panel; the source electrode integrated circuit for being set as the display panel is equipped with warming resistance; the warming resistance connects power supply; the resistance value of the warming resistance changes with the variation of temperature, and the overcurrent protection method of the display panel is the following steps are included: obtain the voltage difference between two end of warming resistance；Judge whether the source electrode integrated circuit meets overcurrent protection condition according to the voltage difference；When the source electrode integrated circuit meets overcurrent protection condition, it is out of service to control the source electrode integrated circuit.A kind of display panel and computer readable storage medium is also disclosed in the application.The application avoids source electrode integrated circuit from the case where short-circuit or open circuit causes display panel to burn occur.
Description
Technical field
This application involves display equipment technical field more particularly to a kind of display panels and its overcurrent protection method and meter
Calculation machine readable storage medium storing program for executing.
Background technique
It is also more and more for the protection mechanism of circuit with the increasingly maturation of display panel industry technology, and need
The reason of protection is mostly to cause operation irregularity in face because of the problem of procedure for producing, and then cause electric current excessive, glass burning occurs
The case where ruining.
In example technique, the protection mechanism of display panel is mostly to be directed to level shifter and power IC,
When i.e. electric current is excessive always within a certain period of time, ability starting protection function, but when the short interruption of source electrode integrated circuit, display surface
Plate can not be protected, so that the problem of display panel is burnt.
Summary of the invention
The main purpose of the application is to provide a kind of display panel and its overcurrent protection method and computer-readable deposits
Storage media, it is intended to solve the problems, such as that display panel is burnt.
To achieve the above object, the overcurrent protection method of a kind of display panel provided by the present application is set as described aobvious
Show that the source electrode integrated circuit of panel is equipped with warming resistance, the warming resistance connects power supply, the resistance value of the warming resistance
Change with the variation of temperature, the overcurrent protection method of the display panel the following steps are included:
Obtain the voltage difference between two end of warming resistance；
Judge whether the source electrode integrated circuit meets overcurrent protection condition according to the voltage difference；
When the source electrode integrated circuit meets overcurrent protection condition, it is out of service to control the source electrode integrated circuit.
In one embodiment, described to judge whether the source electrode integrated circuit meets over current protection according to the voltage difference
The step of guard strip part includes:
The Current Temperatures of the source electrode integrated circuit are determined according to the voltage difference；
Judge whether the Current Temperatures are located in preset temperature range, wherein in the Current Temperatures beyond described
When temperature range, determine that the source electrode integrated circuit meets overcurrent protection condition.
In one embodiment, the step of Current Temperatures that the source electrode integrated circuit is determined according to the voltage difference
Include:
The resistance change of the warming resistance is determined according to the voltage difference, and is determined according to the resistance change
The current resistive value of the warming resistance；
The corresponding Current Temperatures of the current resistive value are obtained according to the first mapping relations, first mapping relations are electricity
Corresponding relationship between resistance and the temperature of the source electrode integrated circuit.
In one embodiment, described to judge whether the source electrode integrated circuit meets over current protection according to the voltage difference
The step of guard strip part includes:
Judge whether the voltage difference is located at preset difference value section, wherein in the voltage difference of stating beyond default poor
When being worth section, determine that the source electrode integrated circuit meets overcurrent protection condition.
In one embodiment, the anode that the input terminal of the warming resistance passes through the first connection circuit connection operational amplifier
Input terminal, negative input of the output end of the warming resistance by operational amplifier described in the second connection circuit connection, institute
The second connection circuit is stated equipped with first resistor, the output end of the negative input and the operational amplifier, which is equipped with, contains the
The step of thirds of two resistance connects circuit, the voltage difference obtained between two end of warming resistance include:
The first voltage of the electrode input end is determined according to the resistance value of the first resistor and the second resistance,
And determine the negative input second voltage；
Determine the second mapping relations between the electrode input end and the voltage of the negative input；
According to second mapping relations, the first voltage and second voltage, determine two end of heat sensitive electronic it
Between voltage difference.
In one embodiment, second mapping relations are the voltage and the negative input of the electrode input end
Voltage is equal.
In one embodiment, the first resistor is equal with the resistance value of the second resistance.
To achieve the above object, the present invention also provides a kind of display panel, the display panel include source electrode integrated circuit,
At least one processor and storage equipment, wherein
The source electrode integrated circuit is equipped with warming resistance, and the warming resistance connects power supply, the storage equipment storage
Have can by least one described processor execute computer executable instructions, the computer executable instructions by it is described at least
When one processor executes, so that a processor executes following steps:
Obtain the voltage difference between two end of warming resistance；
Judge whether the source electrode integrated circuit meets overcurrent protection condition according to the voltage difference；
When the source electrode integrated circuit meets overcurrent protection condition, it is out of service to control the source electrode integrated circuit.
In one embodiment, the anode that the input terminal of the warming resistance passes through the first connection circuit connection operational amplifier
Input terminal, negative input of the output end of the warming resistance by operational amplifier described in the second connection circuit connection, institute
The second connection circuit is stated equipped with first resistor, the output end of the negative input and the operational amplifier, which is equipped with, contains the
The third of two resistance connects circuit.
To achieve the above object, the present invention also provides a kind of computer readable storage medium, the computer-readable storages
Media storage has the computer executable instructions that can be executed by least one described processor, the computer executable instructions quilt
When at least one described processor executes, so that a processor executes following steps:
Obtain the voltage difference on source electrode integrated circuit between two end of warming resistance；
Judge whether the source electrode integrated circuit meets overcurrent protection condition according to the voltage difference；
When the source electrode integrated circuit meets overcurrent protection condition, it is out of service to control the source electrode integrated circuit.
Display panel and its overcurrent protection method and computer readable storage medium provided by the present application, on display panel
Source electrode integrated circuit be equipped with warming resistance, warming resistance connects power supply, the resistance value of warming resistance with temperature variation
And change, display panel obtains the voltage difference between two end of warming resistance, to determine that source electrode is integrated according to voltage difference
Whether circuit meets overcurrent protection condition, if meeting, then controls source electrode integrated circuit and stops working, and avoids the integrated electricity of source electrode
There is the case where short-circuit or open circuit causes display panel to burn in road.
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 overcurrent protection method of the application display panel；
Fig. 3 is the refinement flow diagram of step S20 in Fig. 2；
Fig. 4 is the flow diagram of another embodiment of overcurrent protection method of the application display panel；
Fig. 5 is the flow diagram of the another embodiment of overcurrent protection method of the application display panel；
Fig. 6 is a detection circuit schematic diagram of two end voltage difference of the application display panel medium temperature sensing resistor.
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, and it is not configured to limit this Shen
Please.
The primary solutions of the embodiment of the present application are: obtaining the voltage difference between two end of warming resistance；According to
The voltage difference judges whether the source electrode integrated circuit meets overcurrent protection condition；Meet in the source electrode integrated circuit
When overcurrent protection condition, it is out of service to control the source electrode integrated circuit.
Since the source electrode integrated circuit on display panel is equipped with warming resistance, warming resistance connects power supply, warming resistance
Resistance value change with the variation of temperature display panel obtain two end of warming resistance between voltage difference, thus according to electricity
Pressure difference determines whether source electrode integrated circuit meets overcurrent protection condition, if meeting, then controls source electrode integrated circuit and stops
It only works, source electrode integrated circuit is avoided the case where short-circuit or open circuit causes display panel to burn occur.
As a kind of implementation, display panel can be as shown in Figure 1.
What is involved is display panel, the source electrode integrated circuits of display panel to be equipped with warming electricity for the embodiment of the present application scheme
Resistance, the resistance value of warming resistance change with the variation of temperature, and display panel includes: processor 1001, such as CPU, storage
Device 1002, communication bus 1003.Wherein, 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 overcurrent protection program of display panel；And processor 1001 can be set to call and store in memory 1002
The overcurrent protection program of display panel, and execute following operation:
Obtain the voltage difference between two end of warming resistance；
Judge whether the source electrode integrated circuit meets overcurrent protection condition according to the voltage difference；
When the source electrode integrated circuit meets overcurrent protection condition, it is out of service to control the source electrode integrated circuit.
In one embodiment, processor 1001 can be set to call the excessively electric of the display panel stored in memory 1002
Protective program is flowed, and executes following operation:
The Current Temperatures of the source electrode integrated circuit are determined according to the voltage difference；
Judge whether the Current Temperatures are located in preset temperature range, wherein in the Current Temperatures beyond described
When temperature range, determine that the source electrode integrated circuit meets overcurrent protection condition.
In one embodiment, processor 1001 can be set to call the excessively electric of the display panel stored in memory 1002
Protective program is flowed, and executes following operation:
The resistance change of the warming resistance is determined according to the voltage difference, and is determined according to the resistance change
The current resistive value of the warming resistance；
The corresponding Current Temperatures of the current resistive value are obtained according to the first mapping relations, first mapping relations are electricity
Corresponding relationship between resistance and the temperature of the source electrode integrated circuit.
In one embodiment, processor 1001 can be set to call the excessively electric of the display panel stored in memory 1002
Protective program is flowed, and executes following operation:
Judge whether the voltage difference is located at preset difference value section, wherein in the voltage difference of stating beyond default poor
When being worth section, determine that the source electrode integrated circuit meets overcurrent protection condition.
In one embodiment, processor 1001 can be set to call the excessively electric of the display panel stored in memory 1002
Protective program is flowed, and executes following operation:
The first voltage of the electrode input end is determined according to the resistance value of the first resistor and the second resistance,
And determine the negative input second voltage；
Determine the second mapping relations between the electrode input end and the voltage of the negative input；
According to second mapping relations, the first voltage and second voltage, determine two end of heat sensitive electronic it
Between voltage difference.
In one embodiment, processor 1001 can be set to call the excessively electric of the display panel stored in memory 1002
Protective program is flowed, and executes following operation:
Second mapping relations are that the voltage of the electrode input end is equal with the voltage of the negative input.
In one embodiment, processor 1001 can be set to call the excessively electric of the display panel stored in memory 1002
Protective program is flowed, and executes following operation:
The first resistor is equal with the resistance value of the second resistance.
For the present embodiment according to above scheme, the source electrode integrated circuit on display panel is equipped with warming resistance, warming resistance
Power supply is connected, display panel obtains the voltage difference between two end of warming resistance, to determine source electrode collection according to voltage difference
Whether meet overcurrent protection condition at circuit, if meeting, then control source electrode integrated circuit and stop working, avoids source electrode integrated
There is the case where short-circuit or open circuit causes display panel to burn in circuit.
Based on above-mentioned hardware architecture, the embodiment of the overcurrent protection method of the application display panel is proposed.
It is an embodiment of the overcurrent protection method of the application display panel referring to Fig. 2, Fig. 2, the display panel
Overcurrent protection method the following steps are included:
Step S10 obtains the voltage difference between two end of warming resistance；
In this application, executing subject is display panel, and the source electrode integrated circuit of display panel is equipped with warming resistance, temperature
Sensing resistor is used to detect the temperature of source electrode integrated circuit, and the resistance value of warming resistance changes with the variation of temperature, warming electricity
Resistance can be thermistor, and warming resistance is set in the flip chip of source electrode integrated circuit, and warming resistance connects power supply, which is
Constant-current source, constant-current source are provided by CB (Control Board, control panel).It should be noted that can be each source electrode integrated circuit
Corresponding warming resistance is set, and CB provides constant-current source for each warming resistance.
Display panel can obtain the input terminal of warming resistance and the voltage of output end, thus obtain two end of warming resistance it
Between voltage difference.
Step S20 judges whether the source electrode integrated circuit meets overcurrent protection condition according to the voltage difference；
Warming resistance is arranged on source electrode integrated circuit, therefore the heat transfer that source electrode integrated circuit can generate component is extremely
On warming resistance, so that the temperature of warming resistance and the temperature difference of source electrode integrated circuit are smaller, and the resistance value of warming resistance
Changed according to the variation of temperature, if the resistance value of warming resistance changes, then the voltage difference between two end of warming resistance
Value can also change, therefore display panel can determine the temperature of source electrode integrated circuit according to the voltage difference at two end of warming resistance
Spend size, judge thus according to temperature level the whether excessively high perhaps too low temperature of the temperature of source electrode integrated circuit it is excessively high or
The too low situation that can be characterized source electrode integrated circuit and short circuit or open circuit occur, for example, the electric current in source electrode integrated circuit is excessive
When, the temperature of source electrode integrated circuit can be made excessively high, to cause the situation of short circuit；Or the circuit on source electrode integrated circuit
IC (Integrated Circuit integrated circuit) is broken in open circuit or source electrode integrated circuit, can make source electrode integrated circuit
Temperature it is lower.
In this regard, the temperature range of settable source electrode integrated circuit, which characterizes source electrode integrated circuit and is in normal
The situation of work, no short circuit or open circuit, sets preset temperature section for the temperature range, preset temperature section can be any conjunction
Suitable numerical value, such as 40 DEG C -85 DEG C.
Display panel can judge whether source electrode integrated circuit meets overcurrent protection condition according to voltage difference, please join
Include: according to Fig. 3, i.e. step S20
Step S21 determines the Current Temperatures of the source electrode integrated circuit according to the voltage difference；
Voltage difference can characterize the resistance change of warming resistance namely display panel and can be calculated according to voltage difference
To the resistance change of warming resistance, it is possible thereby to determine the current resistance of warming resistance, Ye Ji electricity according to resistance change
Resistance variable quantity obtains current resistance plus the initial resistance of warming resistance.
There are mapping relations namely the first mapping relations, the first mapping relations between the resistance value and temperature of warming resistance
Curve is shown as, curve available functions expression formula characterization, display panel can be according to the first mapping relations and current resistance
Carry out temperature, which is the Current Temperatures of source electrode integrated circuit.
Step S22, judges whether the Current Temperatures are located in preset temperature range, wherein in the Current Temperatures
When beyond the temperature range, determine that the source electrode integrated circuit meets overcurrent protection condition.
After the Current Temperatures for obtaining source electrode integrated circuit, display panel judges whether Current Temperatures are located at preset temperature again
In section, if Current Temperatures are located in preset temperature section, then it can determine that source electrode integrated circuit is in and work normally, if working as
When preceding temperature exceeds preset temperature section, then it can determine that (Current Temperatures are greater than default temperature for the open circuit of source electrode integrated circuit or short circuit
The upper limit value in section, source electrode integrated circuit short circuit are spent, Current Temperatures are less than the lower limit value in preset temperature section, source electrode integrated circuit
Open circuit), namely can determine that source electrode integrated circuit meets overcurrent protection condition.
Step S30 controls the source electrode integrated circuit and stops when the source electrode integrated circuit meets overcurrent protection condition
Only run.
When determining that source electrode integrated circuit meets overcurrent protection condition, that is, the source electrode integrated circuit can control to stop work
Make, thus the case where avoiding the open circuit of source electrode integrated circuit or short circuit that display panel is caused to burn.
When the temperature of source electrode integrated circuit restore to it is normal when namely the Current Temperatures of source electrode integrated circuit be in default
When temperature range, control source electrode integrated circuit is resumed work.
In technical solution provided in this embodiment, the source electrode integrated circuit on display panel is equipped with warming resistance, temperature
Sensing resistor connects power supply, and display panel obtains the voltage difference between two end of warming resistance, to be determined according to voltage difference
Whether source electrode integrated circuit meets overcurrent protection condition, if meeting, then controls source electrode integrated circuit and stops working, avoid source
There is the case where short-circuit or open circuit causes display panel to burn in pole integrated circuit.
Referring to Fig. 4, Fig. 4 is another embodiment of the overcurrent protection method of the application display panel, and the step S20 is also
Include:
Step S23, judges whether the voltage difference is located at preset difference value section, wherein surpasses in the voltage difference of stating
Out when preset difference value section, determine that the source electrode integrated circuit meets overcurrent protection condition.
In one embodiment, display panel determines the current resistance of warming resistance by voltage difference, then by current electricity
The Current Temperatures to determine source electrode integrated circuit are hindered, judge whether source electrode integrated circuit meets overcurrent thus according to Current Temperatures
Protective condition；And in this example it is shown that panel is tested to obtain voltage difference range according to above-mentioned principle, in the voltage difference
In range, source electrode integrated circuit, which is in, to be worked normally, in this regard, setting preset difference value section for the voltage difference range.?
To after the voltage difference between two end of warming resistance, that is, it can determine whether voltage difference is in the preset difference value section, if super
The preliminary filling difference section out, then can determine that source electrode integrated circuit meets overcurrent protection condition, at this point, it is integrated to control the source electrode
Circuit stops working.
In addition, the type of the warming resistance on display panel on each source electrode integrated circuit can be identical, and it can also be different, each
When the type of warming resistance on a source electrode integrated circuit is identical, display panel stores a preset difference value section, should with basis
To judge whether to meet overcurrent protection condition by source electrode integrated circuit, (in one embodiment, display panel is deposited in preset difference value section
A preset temperature section is stored up, to judge whether source electrode integrated circuit meets over current protection guard strip according to the preset temperature section
Part)；And when the type difference of the warming resistance on each source electrode integrated circuit, display panel needs to store multiple types
The corresponding preset difference value section of warming resistance, to determine corresponding preset difference value section according to the type of current warming resistance
(in one embodiment, display panel needs to store the corresponding preset temperature section of warming resistance of multiple types, thus according to working as
The type of preceding warming resistance determines corresponding preset temperature section).
In technical solution provided in this embodiment, display panel judges whether the voltage difference at two end of warming resistance is located at
Preset difference value section then can determine that source electrode integrated circuit meets overcurrent protection if voltage difference exceeds preset difference value section
Condition, it is out of service that display panel controls the source electrode integrated circuit, thus the case where avoiding display panel from burning.
Referring to Fig. 5, Fig. 5 is the another embodiment of the application, and the step S10 includes:
Step S11 determines the electrode input end according to the resistance value of the first resistor and the second resistance
First voltage, and determine the negative input second voltage；
Step S12 determines the second mapping relations between the electrode input end and the voltage of the negative input；
Step S13 determines the temperature-sensitive electricity according to second mapping relations, the first voltage and second voltage
Voltage difference between sub two ends；In this example it is shown that panel is by operational amplifier between two end of warming resistance
Voltage measures, and below in conjunction with Fig. 6, scheme provided in this embodiment is described in detail.
Electrode input end of the input terminal of warming resistance by the first connection circuit connection operation method device, the first connection electricity
Road is equipped with 3rd resistor R3, and the voltage of the input terminal of R3 is V1；The output end of warming resistance is connected by the second connection circuit
The negative input of operation method device is connect, the second connection circuit is equipped with first resistor R1, the output end and fortune of first resistor R1
The output end for calculating amplifier is equipped with the third containing second resistance R2 and connects circuit.
First resistor R1 is equal with the resistance value of second resistance R2, and V1 is divided by first resistor R1 and second resistance R2
It arrives, therefore the voltage V+=(V1)/2 of the electrode input end of operation method device；Operational amplifier is a subtraction circuit, therefore operation is put
The voltage V-=V2- [(V2-Vout)/2] of the negative input of big device, wherein Vout is the electricity of the output end of operational amplifier
Pressure；And V+=V- (the second mapping relations), i.e. (V1)/2=V2- [(V2-Vout)/2]=(V2+Vout)/2, therefore Vout=V1-
V2, Vout are the voltage difference between two end of warming resistance；TCON in the output end and display panel of operational amplifier
(Timer Control Register, sequence controller) connection, by the size of TCON detecting Vout, to obtain warming resistance two
Voltage difference between end.
In technical solution provided in this embodiment, display panel is detected by the way that the operational amplifier of subtraction circuit is arranged
The voltage difference at two end of warming resistance enables display panel to determine whether source electrode integrated circuit meets according to voltage difference
Overcurrent protection condition, so that source electrode integrated circuit be avoided the case where short-circuit or open circuit causes display panel to burn occur.
The application also provides a kind of display panel, the display panel include source electrode integrated circuit, at least one processor,
And storage equipment, wherein
The source electrode integrated circuit is equipped with warming resistance, and the warming resistance connects power supply, the electricity of the warming resistance
Resistance value changes with the variation of temperature, and the storage equipment is stored with the computer that can be executed by least one described processor
Executable instruction, when the computer executable instructions are executed by least one described processor, so that a processor executes
Following steps:
Obtain the voltage difference between two end of warming resistance；
Judge whether the source electrode integrated circuit meets overcurrent protection condition according to the voltage difference；
When the source electrode integrated circuit meets overcurrent protection condition, it is out of service to control the source electrode integrated circuit.
The source electrode integrated circuit of display panel is equipped with warming resistance, and the flip that warming resistance is set to source electrode integrated circuit is thin
On film, warming resistance connects power supply, which is constant-current source, and constant-current source is provided by CB (ControlBoard, control panel).It needs
Illustrate, corresponding warming resistance can be set for each source electrode integrated circuit, CB provides constant-current source for each warming resistance.
Referring to Fig. 6, the electrode input end that the input terminal of warming resistance connects circuit connection operation method device by first, the
One connection circuit is equipped with 3rd resistor R3, and the voltage of the input terminal of R3 is V1；The output end of warming resistance connects by second
The negative input of circuit connection operation method device is connect, the second connection circuit is equipped with first resistor R1, and first resistor R1's is defeated
The output end of outlet and operational amplifier is equipped with the third containing second resistance R2 and connects circuit.
First resistor R1 is equal with the resistance value of second resistance R2, and V1 is divided by first resistor R1 and second resistance R2
It arrives, therefore the voltage V+=(V1)/2 of the electrode input end of operation method device；Operational amplifier is a subtraction circuit, therefore operation is put
The voltage V-=V2- [(V2-Vout)/2] of the negative input of big device, wherein Vout is the electricity of the output end of operational amplifier
Pressure；And V+=V- (the second mapping relations), i.e. (V1)/2=V2- [(V2-Vout)/2]=(V2+Vout)/2, therefore Vout=V1-
V2, Vout are the voltage difference between two end of warming resistance；TCON in the output end and display panel of operational amplifier
(Timer Control Register, sequence controller) connection, by the size of TCON detecting Vout, to obtain warming resistance two
Voltage difference between end.
After obtaining voltage difference, the resistance change of warming resistance is calculated according to voltage difference for display panel, by
This can determine the current resistance of warming resistance namely resistance change plus the initial of warming resistance according to resistance change
Resistance obtains current resistance；
Display panel can be according to the first mapping relations and current resistance come temperature, which is that source electrode is integrated
The Current Temperatures of circuit；
After the Current Temperatures for obtaining source electrode integrated circuit, display panel judges whether Current Temperatures are located at preset temperature again
In section, if Current Temperatures are located in preset temperature section, then it can determine that source electrode integrated circuit is in and work normally, if working as
When preceding temperature exceeds preset temperature section, then it can determine that (Current Temperatures are greater than default temperature for the open circuit of source electrode integrated circuit or short circuit
The upper limit value in section, source electrode integrated circuit short circuit are spent, Current Temperatures are less than the lower limit value in preset temperature section, source electrode integrated circuit
Open circuit), namely can determine that source electrode integrated circuit meets overcurrent protection condition；At this point, controlling the source electrode integrated circuit stops work
Make.
The application also provides a kind of computer readable storage medium, and the computer-readable recording medium storage has can be by institute
The computer executable instructions of at least one processor execution are stated, the computer executable instructions are by least one described processing
When device executes, so that a processor executes following steps:
Obtain the voltage difference on source electrode integrated circuit between two end of warming resistance；
Judge whether the source electrode integrated circuit meets overcurrent protection condition according to the voltage difference；
When the source electrode integrated circuit meets overcurrent protection condition, it is out of service to control the source electrode integrated circuit.
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 the alternative embodiments of the 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 overcurrent protection method of display panel, which is characterized in that be set as the integrated electricity of source electrode of the display panel
Road is equipped with warming resistance, and the resistance value of the warming resistance changes with the variation of temperature, the warming resistance connection electricity
Source, the overcurrent protection method of the display panel the following steps are included:
Obtain the voltage difference between two end of warming resistance；
Judge whether the source electrode integrated circuit meets overcurrent protection condition according to the voltage difference；
When the source electrode integrated circuit meets overcurrent protection condition, it is out of service to control the source electrode integrated circuit.
2. the overcurrent protection method of display panel as described in claim 1, which is characterized in that described according to the voltage difference
Value judges that the step of whether the source electrode integrated circuit meets overcurrent protection condition includes:
The Current Temperatures of the source electrode integrated circuit are determined according to the voltage difference；
Judge whether the Current Temperatures are located in preset temperature range, wherein exceed the temperature in the Current Temperatures
When section, determine that the source electrode integrated circuit meets overcurrent protection condition.
3. the overcurrent protection method of display panel as claimed in claim 2, which is characterized in that described according to the voltage difference
Value determines that the step of Current Temperatures of the source electrode integrated circuit includes:
The resistance change of the warming resistance is determined according to the voltage difference, and according to resistance change determination
The current resistive value of warming resistance；
Obtain the corresponding Current Temperatures of the current resistive value according to the first mapping relations, first mapping relations be resistance with
Corresponding relationship between the temperature of the source electrode integrated circuit.
4. the overcurrent protection method of display panel as described in claim 1, which is characterized in that described according to the voltage difference
Value judges that the step of whether the source electrode integrated circuit meets overcurrent protection condition includes:
Judge whether the voltage difference is located at preset difference value section, wherein in the voltage difference of stating beyond preset difference value area
Between when, determine that the source electrode integrated circuit meets overcurrent protection condition.
5. the overcurrent protection method of display panel according to any one of claims 1-4, which is characterized in that the warming electricity
The electrode input end that the input terminal of resistance connects circuit connection operational amplifier by first, the output end of the warming resistance pass through
The negative input of operational amplifier described in second connection circuit connection, the second connection circuit are equipped with first resistor, institute
It states the output end of first resistor and the output end of the operational amplifier is equipped with the third containing second resistance and connect circuit, it is described
The step of obtaining the voltage difference between two end of warming resistance include:
The first voltage of the electrode input end is determined according to the resistance value of the first resistor and the second resistance, and really
The second voltage of fixed the negative input；
Determine the second mapping relations between the electrode input end and the voltage of the negative input；
According to second mapping relations, the first voltage and second voltage, determine between two end of heat sensitive electronic
Voltage difference.
6. the overcurrent protection method of display panel as claimed in claim 5, which is characterized in that second mapping relations are
The voltage of the electrode input end is equal with the voltage of the negative input.
7. the overcurrent protection method of display panel as claimed in claim 5, which is characterized in that the first resistor with it is described
The resistance value of second resistance is equal.
8. a kind of display panel, which is characterized in that the display panel include source electrode integrated circuit, at least one processor, with
And storage equipment, wherein
The source electrode integrated circuit is equipped with warming resistance, and the warming resistance connects power supply, the resistance value of the warming resistance
Change with the variation of temperature, the storage equipment is stored with and can be held by the computer that at least one described processor executes
Row instruction, when the computer executable instructions are executed by least one described processor, so that a processor execution is following
Step:
Obtain the voltage difference between two end of warming resistance；
Judge whether the source electrode integrated circuit meets overcurrent protection condition according to the voltage difference；
When the source electrode integrated circuit meets overcurrent protection condition, it is out of service to control the source electrode integrated circuit.
9. display panel as claimed in claim 8, which is characterized in that the input terminal of the warming resistance passes through the first connection electricity
Road connects the electrode input end of operational amplifier, and the output end of the warming resistance passes through operation described in the second connection circuit connection
The negative input of amplifier, the second connection circuit are equipped with first resistor, and the negative input is put with the operation
The output end of big device is equipped with the third containing second resistance and connects circuit.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has 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:
Obtain the voltage difference on source electrode integrated circuit between two end of warming resistance；
Judge whether the source electrode integrated circuit meets overcurrent protection condition according to the voltage difference；
When the source electrode integrated circuit meets overcurrent protection condition, it is out of service to control the source electrode integrated circuit.
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| WO2022007085A1 (en) * | 2020-07-09 | 2022-01-13 | Tcl华星光电技术有限公司 | Display device and display apparatus |
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Application publication date: 20190524 |