A scanning drive method, system, software and apparatus

Abstract

The application provides a scanning driving method, system, software and device. A source IC outputs signals to a gate IC through a first OE interface and a second OE interface. The output signals of the first OE interface and the second OE interface are adaptively adjusted according to the real-time state of an external video signal. The scanning output signal is controlled to be high or low according to the output signals of the adjusted first OE interface and second OE interface. The technical scheme provided by the application solves the "bright horizontal line" problem of the "pre-scanning" function of the current gate IC in vehicle applications, and improves the adaptability of the display screen in the vehicle application environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of scan driving, in particular to a scan driving method, system, software and device. BACKGROUND

[0002] The application environment of a vehicle is relatively complex, and the application temperature range is also relatively wide, especially the low temperature needs to meet the condition of normal function at-50℃. In order to meet the application environment on the vehicle, a function named "pre-scan" is designed on the Gate scan design of the vehicle display screen. The function can compensate the problem of insufficient liquid crystal charging due to the decline of TFT device characteristics under low temperature conditions.

[0003] In the vehicle-mounted system, the application scene of signal source switching exists universally, and in this application scene, the "pre-scan" is opened, which will cause the horizontal "bright line" of the display screen, and there is no effective method based on the current IC scheme.

[0004] At present, the Gate scan control is designed by outputting three control signals from the Source IC end to the Gate IC, and the enable signal for controlling the Gate scan signal is the OE signal.

[0005] In the current Gate IC hardware interface design, when the "pre-scan" function is not opened, the Gate scan signal of each row is controlled by the rising edge and the falling edge of the OE. When the "pre-scan" function is opened, the Gate signal of the N+1th row will be opened in advance in the Nth row.

[0006] After the "pre-scan" function is opened, in order to ensure that the Gate scan signal can be output according to the timing requirements of the display, the driving logic is stipulated that the Gate output signal of the odd row will be referenced according to the odd pulse of the OE signal, and only at the rising edge of the OE odd pulse, the waveform of the Gate 2N+1 will be pulled low; similarly, the Gate output signal of the even row will be referenced according to the even pulse of the OE signal, and only at the rising edge of the OE even pulse, the waveform of the Gate 2N+2 will be pulled low.

[0007] The reason for the "bright horizontal line" in the application of switching the video signal source in this driving logic mode is that the Source IC will enter the BIST (internal self-checking picture) mode when the video signal is switched, and then the OE signal output setting will be set to high. The OE signal set to high will cause the Gate signal in the working state at the switching moment to not find the OE rising edge signal, so that the Gate scan signal of the row is always in the open state. This leads to signal charging error and display abnormality. SUMMARY

[0008] In view of the above technical problems, the application provides a scanning driving method, system, software and device.

[0009] Specifically, the application provides a scanning driving method, characterized in that comprising:

[0010] The Source IC end outputs signals to the Gate IC end through the first OE interface and the second OE interface;

[0011] According to the real-time state of the external video signal, the output signals of the first OE interface and the second OE interface are adaptively adjusted;

[0012] According to the adjusted output signals of the first OE interface and the second OE interface, the scanning output signal is controlled to be high or low.

[0013] In the prior art, three control signals are output from the Source IC end to the Gate IC to realize Gate scanning control, which are improved to four control signals in the application, including two OE signals for controlling the enable signals of the Gate scanning signal. According to the adjusted output signals of the first OE interface and the second OE interface, the scanning output signal is controlled to be high or low, so that the "bright horizontal line" problem of the "pre-scanning" function of the current Gate IC in vehicle application is solved, and the adaptability of the display screen in the vehicle application environment is improved.

[0014] Further, the Source IC end outputs signals to the Gate IC end through the first OE interface and the second OE interface further comprises:

[0015] The Source IC end further outputs signals to the Gate IC end through an STV interface and a CKV interface.

[0016] The OE interface, the CKV interface and the STV interface correspond to the Output Enable interface, the Clock Voltage interface and the Scan Timing Voltage interface respectively, and they are three control signals sent from the Source IC end to the Gate IC end. The OE interface controls the scanning output of the Gate IC; the CKV interface controls the clock frequency of the Gate IC; and the STV interface controls the scanning rate of the Gate IC.

[0017] Further, the Source IC end outputs signals to the Gate IC end through the first OE interface and the second OE interface further comprises:

[0018] When the external video signal is stable, the output signals of the first OE interface and the second OE interface are inverted;

[0019] When the external video signal source is switched, the output signals of the first OE interface and the second OE interface are both high.

[0020] Further, the control of the scan output signal to be high or low according to the output signals of the adjusted first OE interface and the second OE interface comprises:

[0021] When the first OE interface outputs a falling edge signal, and the result of the AND operation of the output signal value of the first OE interface and the output signal value of the second OE interface is equal to the first threshold value, the scan output signal is high.

[0022] When the first OE interface outputs a rising edge signal, and the result of the AND operation of the output signal value of the first OE interface and the output signal value of the second OE interface is equal to the first threshold value, the scan output signal is low.

[0023] When the first OE interface outputs a falling edge signal, and the result of the AND operation of the output signal value of the first OE interface and the output signal value of the second OE interface is equal to the second threshold value, the scan output signal is low.

[0024] When the first OE interface outputs a rising edge signal, and the result of the AND operation of the output signal value of the first OE interface and the output signal value of the second OE interface is equal to the second threshold value, the scan output signal is low.

[0025] Further, the logic for controlling the scan output signal is expressed by a logic expression as follows:

[0026] A brand-new logic control scheme is adopted on the Gate scan output logic, so that the Gate scan output signal is controlled by OE1 and OE1&OE2. That is:

[0027]

[0028]

[0029]

[0030]

[0031]

[0032] After the scan output signal is high, the condition that only when the rising edge of the odd pulse of the output signal of the first OE interface, the odd row scan output signal is pulled low; and only when the rising edge of the even pulse of the output signal of the first OE interface, the even row scan output signal is pulled low, needs to be met.

[0033] In the scan driving method provided in the application, after the "pre-scan" function is turned on, in order to ensure that the Gate scan signal can be output according to the display timing requirements, the driving logic stipulates that the Gate output signal of the odd-numbered row will be referenced according to the odd-numbered pulse of the OE1 signal (the signal output by the first OE interface), and only at the rising edge of the OE1 odd-numbered pulse, the waveform of Gate 2N+1 will be pulled low; similarly, the Gate output signal of the even-numbered row will be referenced according to the even-numbered pulse of the OE1 signal (the signal output by the first OE interface), and only at the rising edge of the OE1 even-numbered pulse, the waveform of Gate 2N+2 will be pulled low.

[0034] Further, after the scan output signal is high, the method further comprises:

[0035] only at the rising edge of the odd-numbered pulse of the first OE interface output signal, the odd-numbered row scan output signal is pulled low;

[0036] only at the rising edge of the even-numbered pulse of the first OE interface output signal, the even-numbered row scan output signal is pulled low.

[0037] Specifically, the present scheme retains the technical features in the prior art that the odd-numbered row scan output signal is controlled by the odd-numbered pulse of the OE interface output signal, and the even-numbered row scan output signal is controlled by the even-numbered pulse of the OE interface output signal.

[0038] In the current Gate IC hardware interface design, when the "pre-scan" function is not turned on, the Gate scan signal of each row is controlled by the rising edge and the falling edge of the OE. When the "pre-scan" function is turned on, the Gate signal of the N+1th row will be opened in advance in the Nth row.

[0039] In the scan driving method provided in the application, after the "pre-scan" function is turned on, in order to ensure that the Gate scan signal can be output according to the display timing requirements, the driving logic stipulates that the Gate output signal of the odd-numbered row will be referenced according to the odd-numbered pulse of the OE1 signal (the signal output by the first OE interface), and only at the rising edge of the OE1 odd-numbered pulse, the waveform of Gate 2N+1 will be pulled low; similarly, the Gate output signal of the even-numbered row will be referenced according to the even-numbered pulse of the OE1 signal (the signal output by the first OE interface), and only at the rising edge of the OE1 even-numbered pulse, the waveform of Gate 2N+2 will be pulled low.

[0040] Specifically, the present scheme retains the technical features in the prior art that the odd-numbered row scan output signal is controlled by the odd-numbered pulse of the OE interface output signal, and the even-numbered row scan output signal is controlled by the even-numbered pulse of the OE interface output signal.

[0041] The first OE interface and the second OE interface are used for outputting signals from the Source IC end to the Gate IC end to control the scan output signal.

[0042] An adaptive adjusting unit is configured to adaptively adjust output signals of the first OE interface and the second OE interface according to a real-time state of the external video signal.

[0043] A processing unit is configured to control the scan output signal to be high or low according to the adjusted output signals of the first OE interface and the second OE interface.

[0044] Further, the system further comprises:

[0045] An STV interface and a CKV interface are configured to output signals from the source IC end to the gate IC end.

[0046] Further, the first OE interface, the second OE interface, the STV interface and the CKV interface are independent communication interfaces.

[0047] The scan driving system provided by the application outputs four signals from the source IC end to the gate IC end through four independent communication interfaces, which include the first OE interface (OE1), the second OE interface (OE2), the STV interface and the CKV interface.

[0048] Different from the prior art, the scan driving system in the prior art outputs three signals from the source IC end to the gate IC end through three independent communication interfaces, which include the OE interface, the STV interface and the CKV interface. It can be seen that there is only one OE interface from the source IC end to the gate IC end in the prior art, while the number of OE interfaces is improved at the hardware level in the technical solution provided by the application.

[0049] Specifically, the application further provides a scan driving software, which is characterized in that the scan driving software adopts the scan driving method to complete scan driving.

[0050] Further, the scan driving software can complete the process of controlling the scan output signal to be high or low according to the adjusted output signals of the first OE interface and the second OE interface, which specifically includes:

[0051] When the first OE interface outputs a falling edge signal and the result of the AND operation of the output signal value of the first OE interface and the output signal value of the second OE interface is equal to the first threshold value, the scan output signal is high.

[0052] When the first OE interface outputs a rising edge signal and the result of the AND operation of the output signal value of the first OE interface and the output signal value of the second OE interface is equal to the first threshold value, the scan output signal is low.

[0053] when the first OE interface outputs a falling edge signal and the result of the AND operation of the first OE interface output signal value and the second OE interface output signal value is equal to the second threshold value, the scan output signal is made low;

[0054] when the first OE interface outputs a falling edge signal and the result of the AND operation of the first OE interface output signal value and the second OE interface output signal value is equal to the second threshold value, the scan output signal is made low.

[0055] Further, the logic for controlling the scan output signal is expressed by a logic expression as follows:

[0056] A brand-new logic control scheme is adopted on the Gate scan output logic, so that the Gate scan output signal is controlled by OE1 and OE1&OE2.

[0057]

[0058]

[0059]

[0060]

[0061]

[0062] Specifically, the application further provides a computer device, characterized by comprising a processor and a memory, wherein the memory is used to store a computer program, and the computer program is executed by the processor to realize the scan driving method.

[0063] Compared with the prior art, the application has at least the following beneficial effects:

[0064] The technical scheme provided by the application improves the output of three control signals from the Source IC end to the output of four control signals from the Source IC end to the Gate IC to realize Gate scan control, wherein the four control signals include two OE signals for controlling the enable signals of the Gate scan signal, and the scan output signal is controlled to be high or low according to the output signals of the adjusted first OE interface and the second OE interface, so that the "bright horizontal line" problem of the "pre-scan" function of the current Gate IC in vehicle application is solved, and the adaptability of the display screen in the vehicle application environment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0065] Figure 1 is a flowchart of the scan driving method shown in the embodiments of the application.

[0066] Figure 2is a control signal logic diagram of the scan driving method shown in the embodiment of the present application.

[0067] Figure 3 is a scan output signal logic diagram of the scan driving method shown in the embodiment of the present application.

[0068] Figure 4 is a hardware interface diagram of the scan driving system shown in the embodiment of the present application.

[0069] Figure 5 is a computer device structure diagram shown in the embodiment of the present application. DETAILED DESCRIPTION

[0070] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0071] Embodiment one:

[0072] Referring to Figure 1 is a scan driving method flow diagram shown in the embodiment of the present application.

[0073] Specifically, the present application provides a scan driving method, characterized in that, comprising:

[0074] The Source IC end outputs signals to the Gate IC end through the first OE interface and the second OE interface;

[0075] According to the real-time state of the external video signal, the output signals of the first OE interface and the second OE interface are adaptively adjusted;

[0076] According to the output signals of the adjusted first OE interface and the second OE interface, the scan output signal is controlled to be high or low.

[0077] The present application improves the output of three control signals from the Source IC end to the output of four control signals from the Source IC end to the Gate IC to realize Gate scan control, which includes two OE signals for controlling the enable signals of the Gate scan signal. According to the output signals of the adjusted first OE interface and the second OE interface, the scan output signal is controlled to be high or low, which solves the "bright horizontal line" problem of the "pre-scan" function of the current Gate IC in vehicle application, and improves the adaptability of the display screen in the vehicle application environment.

[0078] Further, the Source IC end outputs signals to the Gate IC end through the first OE interface and the second OE interface further includes:

[0079] The Source IC end further outputs signals to the Gate IC end through an STV interface and a CKV interface.

[0080] The OE interface, the CKV interface, and the STV interface correspond to an Output Enable interface, a Clock Voltage interface, and a Scan Timing Voltage interface respectively, which are three control signals sent by the Source IC end to the Gate IC end. Among them, the OE interface controls the scan output of the Gate IC; the CKV interface controls the clock frequency of the Gate IC; and the STV interface controls the scan rate of the Gate IC.

[0081] Further, the adaptive adjustment of the output signals of the first OE interface and the second OE interface according to the real-time state of the external video signal includes:

[0082] When the external video signal is stable, the output signals of the first OE interface and the second OE interface are inverted.

[0083] When the external video signal source is switched, the output signals of the first OE interface and the second OE interface are both high.

[0084] Referring to Figure 2 is a control signal logic diagram of the scan driving method shown in the embodiments of the present application.

[0085] Among them, BIST is a self-test (Self-Test) signal. In the process of integrated circuit (IC) design and manufacturing, BIST is an important test technology, which allows IC to test itself during operation to check whether its internal logic and function are normal. BIST is usually implemented by embedding test data and logic in IC, which can be used in various test modes to cover different test scenarios. By using BIST, the reliability of IC can be improved, the production cost can be reduced, and the product launch time can be shortened.

[0086] Among them, Source Out refers to the external video signal source, which is Figure 2 As can be seen, when the external video signal is stable, the output signals of the first OE interface and the second OE interface are inverted; when the external video signal source is switched, the output signals of the first OE interface and the second OE interface are both high.

[0087] Further, the control of the scan output signal to be high or low according to the adjusted output signals of the first OE interface and the second OE interface comprises:

[0088] when the first OE interface outputs a falling edge signal and the result of the AND operation of the first OE interface output signal value and the second OE interface output signal value is equal to the first threshold value, the scan output signal is high;

[0089] when the first OE interface outputs a rising edge signal and the result of the AND operation of the first OE interface output signal value and the second OE interface output signal value is equal to the first threshold value, the scan output signal is low;

[0090] when the first OE interface outputs a falling edge signal and the result of the AND operation of the first OE interface output signal value and the second OE interface output signal value is equal to the second threshold value, the scan output signal is low;

[0091] when the first OE interface outputs a rising edge signal and the result of the AND operation of the first OE interface output signal value and the second OE interface output signal value is equal to the second threshold value, the scan output signal is low.

[0092] Further, the logic for controlling the scan output signal is expressed by a logic expression as follows:

[0093] A brand-new logic control scheme is adopted in the Gate scan output logic, so that the Gate scan output signal is controlled by OE1 and OE1&OE2. That is:

[0094]

[0095]

[0096]

[0097]

[0098]

[0099] Reference Figure 3 is a scan output signal logic diagram of the scan driving method shown in the embodiments of the present application.

[0100] CKV is a signal output by the CKV interface, used for controlling the clock frequency of the Gate IC

[0101] STV is a signal output by the STV interface, used for controlling the scan rate of the Gate IC.

[0102] BIST is a self-test signal. In the process of integrated circuit (IC) design and manufacturing, BIST is an important test technology that allows IC to test itself during runtime to check whether its internal logic and functions are normal. BIST is usually implemented by embedding test data and logic inside IC, which can be used in various test modes to cover different test scenarios. By using BIST, the reliability of IC can be improved, production cost can be reduced, and product launch time can be shortened.

[0103] Source Out refers to an external video signal source, which is Figure 3 It can be seen that when the external video signal is stable, the output signals of the first OE interface and the second OE interface are inverted; when the external video signal source is switched, the output signals of the first OE interface and the second OE interface are both high.

[0104] According to the output signals of the adjusted first OE interface and the second OE interface, the scan output signal is controlled to be high or low. The specific software control logic is as follows:

[0105]

[0106]

[0107]

[0108]

[0109] After the scan output signal is made high, the condition that only when the rising edge of the odd pulse of the first OE interface output signal, the odd row scan output signal is pulled low; only when the rising edge of the even pulse of the first OE interface output signal, the even row scan output signal is pulled low needs to be met.

[0110] In the scan driving method provided in the present application, after the "pre-scanning" function is turned on, in order to ensure that the Gate scan signal can be output according to the display timing requirements, the driving logic stipulates that the Gate output signal of the odd row will be referenced according to the odd pulse of the OE1 signal (the signal output by the first OE interface), and only at the rising edge of the OE1 odd pulse, the waveform of Gate 2N+1 will be pulled low; similarly, the Gate output signal of the even row will be referenced according to the even pulse of the OE1 signal (the signal output by the first OE interface), and only at the rising edge of the OE1 even pulse, the waveform of Gate 2N+2 will be pulled low.

[0111] Further, the method further comprises:

[0112] only when the rising edge of the odd pulse of the first OE interface output signal, the odd row scan output signal is pulled low;

[0113] only when the rising edge of the even pulse of the first OE interface output signal, the even row scan output signal is pulled low.

[0114] Specifically, the present scheme retains the technical features of the prior art that the odd row scan output signal is controlled by the odd pulse of the OE interface output signal, and the even row scan output signal is controlled by the even pulse of the OE interface output signal.

[0115] In the current Gate IC hardware interface design, when the "pre-scan" function is not enabled, the Gate scan signal of each row is controlled by the rising edge and the falling edge of the OE. When the "pre-scan" function is enabled, the Gate signal of the N+1th row will be opened in advance in the Nth row.

[0116] In the scan driving method provided by the present application, after the "pre-scan" function is enabled, in order to ensure that the Gate scan signal can be output according to the timing requirements of the display, the driving logic is defined that the Gate output signal of the odd row will be referenced according to the odd pulse of the OE1 signal (the signal output by the first OE interface), and only when the rising edge of the OE1 odd pulse, the waveform of the Gate 2N+1 will be pulled low; similarly, the Gate output signal of the even row will be referenced according to the even pulse of the OE1 signal (the signal output by the first OE interface), and only when the rising edge of the OE1 even pulse, the waveform of the Gate 2N+2 will be pulled low.

[0117] Embodiment two:

[0118] Specifically, the present application also proposes a system according to the scan driving method, the system comprises:

[0119] a first OE interface and a second OE interface, for outputting signals from the Source IC end to the Gate IC end to control the scan output signal;

[0120] an adaptive adjustment unit, for adaptively adjusting the output signals of the first OE interface and the second OE interface according to the real-time state of the external video signal;

[0121] a processing unit, for controlling the scan output signal to be high or low according to the adjusted output signals of the first OE interface and the second OE interface.

[0122] Further, the system further comprises:

[0123] a STV interface and a CKV interface, for outputting signals from the Source IC end to the Gate IC end.

[0124] Further, the first OE interface, the second OE interface, the STV interface and the CKV interface are independent communication interfaces.

[0125] Referring to Figure 4 is a hardware interface schematic diagram of the scan driving system shown in the embodiments of the present application.

[0126] By Figure 4 It can be seen that the scan driving system shown in the embodiments of the present application outputs four signals from the source IC end to the gate IC end through four independent communication interfaces, including the first OE interface (OE1), the second OE interface (OE2), the STV interface and the CKV interface.

[0127] Unlike the prior art, the scan driving system in the prior art outputs three signals from the source IC end to the gate IC end through three independent communication interfaces, including the OE interface, the STV interface and the CKV interface. It can be seen that in the prior art, there is only one OE interface from the source IC end to the gate IC end, while the technical solution provided in the present application improves the number of OE interfaces at the hardware level.

[0128] Embodiment Three

[0129] Specifically, the present application also provides a scan driving software, characterized in that the scan driving software adopts the scan driving method to complete scan driving.

[0130] Further, the scan driving software can complete the process of controlling the scan output signal to be high or low according to the output signals of the adjusted first OE interface and the second OE interface, specifically as follows:

[0131] When the first OE interface outputs a falling edge signal, and the result of the AND operation of the first OE interface output signal value and the second OE interface output signal value is equal to the first threshold value, the scan output signal is high;

[0132] When the first OE interface outputs a rising edge signal, and the result of the AND operation of the first OE interface output signal value and the second OE interface output signal value is equal to the first threshold value, the scan output signal is low;

[0133] When the first OE interface outputs a falling edge signal, and the result of the AND operation of the first OE interface output signal value and the second OE interface output signal value is equal to the second threshold value, the scan output signal is low;

[0134] When the first OE interface outputs a rising edge signal, and the result of ANDing the first OE interface output signal value and the second OE interface output signal value is equal to the second threshold, the scan output signal is set to a low level.

[0135] Furthermore, the logic for representing the control scan output signal using a logical expression is as follows:

[0136] A completely new logic control scheme is adopted for the Gate scan output logic, making the Gate scan output signal controlled by OE1 and OE1&OE2. That is:

[0137]

[0138]

[0139]

[0140]

[0141]

[0142] Example 4:

[0143] Specifically, this application also proposes a computer device, characterized in that it includes a processor and a memory, the memory being used to store a computer program, which, when executed by the processor, implements the scan-driving method.

[0144] Reference Figure 5 This is a schematic diagram of the computer device structure shown in the embodiments of this application.

[0145] like Figure 5 As shown, the computer device 5 of this embodiment includes: at least one processor 50 ( Figure 5 (Only one is shown in the diagram), memory 51, and computer program 52 stored in the memory 51 and executable on the at least one processor 50, wherein the processor 50 executes the computer program 52 to implement the steps in any of the above method embodiments.

[0146] The computer device 5 is generally an in-vehicle infotainment system, which may be a basic entertainment system, a multimedia entertainment system, a navigation and entertainment system, a rear-seat entertainment system, an in-vehicle connected entertainment system, etc. This computer device may include, but is not limited to, a processor 50 and a memory 51. Those skilled in the art will understand that... Figure 5 The computer device 5 is merely an example and does not constitute a limitation on the computer device 5. It may include more or fewer components than shown in the figure, or combine certain components, or different components, such as input / output devices, network access devices, etc.

[0147] The processor 50 can be a central processing unit (CPU), and can also be other general-purpose processors, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0148] The memory 51 can be an internal storage unit of the computer device 5 in some embodiments, for example, a hard disk or a memory of the computer device 5. The memory 51 can also be an external storage device of the computer device 5 in other embodiments, for example, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. Further, the memory 51 can include both an internal storage unit and an external storage device of the computer device 5. The memory 51 is used to store an operating system, application programs, a boot loader, data and other programs, for example, program codes of the computer program, etc. The memory 51 can also be used to temporarily store data that has been output or will be output.

[0149] In summary, the present application provides a scanning driving method, system, software and device. The Source IC outputs signals to the Gate IC through the first OE interface and the second OE interface. The output signals of the first OE interface and the second OE interface are adaptively adjusted according to the real-time state of the external video signal. The scanning output signal is controlled to be high or low according to the adjusted output signals of the first OE interface and the second OE interface. The technical solution provided by the present application solves the "bright horizontal line" problem of the "pre-scanning" function of the current Gate IC in vehicle application, and improves the adaptability of the display screen in the vehicle application environment.

[0150] The technical scheme provided in the application improves the output of three control signals from a Source IC end to four control signals from the Source IC end to a Gate IC to realize Gate scanning control, wherein the four control signals include two OE signals for controlling the enable signals of the Gate scanning signals, and the output signals of the adjusted first OE interface and the second OE interface are used to control the scanning output signals to be high or low, thereby solving the problem of the "bright horizontal line" of the "pre-scanning" function of the Gate IC in vehicle applications, and improving the adaptability of the display screen in the vehicle application environment.

[0151] In several embodiments provided in the application, it can be understood that each block in the flowchart or block diagram can represent a module, a program segment or a part of code, and the module, the program segment or the part of code include one or more executable instructions for realizing the specified logic function. It should also be noted that in some alternative implementation manners, the functions annotated in the blocks can also occur in different orders from those annotated in the drawings. For example, two continuous blocks can actually be executed substantially in parallel, and they can also be executed in reverse order in some cases, depending on the functions involved.

[0152] If the functions are realized in the form of software function modules and sold or used as independent products, the functions can be stored in a computer readable storage medium. Based on such understanding, the technical scheme of the application can be embodied in the form of a software product in essence or in the form of a part of the technical scheme that contributes to the prior art, and the computer software product is stored in a storage medium and includes a plurality of instructions for causing an electronic device to execute all or part of the steps of the method described in the embodiments of the application. The foregoing storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk and various program code storage media.

[0153] The specific embodiments described above further illustrate the purposes, technical schemes and beneficial effects of the application, and it should be understood that the above description is only for specific embodiments of the application and is not used to limit the protection scope of the application. It is particularly pointed out that any modification, equivalent replacement, improvement, etc. made by those skilled in the art within the spirit and principles of the application should be included in the protection scope of the application.

Claims

1. A scan driving method, characterized by, The system comprises: The Source IC end outputs signals to the Gate IC end through the first OE interface and the second OE interface; The output signals of the first OE interface and the second OE interface are adaptively adjusted according to the real-time state of the external video signal; The scanning output signal is controlled to be high or low according to the output signals of the adjusted first OE interface and second OE interface; The scanning output signal is controlled to be high or low according to the output signals of the adjusted first OE interface and second OE interface, comprising: When the first OE interface outputs a falling edge signal, and the result of the AND operation of the output signal value of the first OE interface and the output signal value of the second OE interface is equal to the first threshold value, the scanning output signal is high; When the first OE interface outputs a rising edge signal, and the result of the AND operation of the output signal value of the first OE interface and the output signal value of the second OE interface is equal to the first threshold value, the scanning output signal is low; When the first OE interface outputs a falling edge signal, and the result of the AND operation of the output signal value of the first OE interface and the output signal value of the second OE interface is equal to the second threshold value, the scanning output signal is low; When the first OE interface outputs a rising edge signal, and the result of the AND operation of the output signal value of the first OE interface and the output signal value of the second OE interface is equal to the second threshold value, the scanning output signal is low.

2. The scan driving method according to claim 1, wherein The Source IC end outputs signals to the Gate IC end through the first OE interface and the second OE interface further comprises: The Source IC end further outputs signals to the Gate IC end through an STV interface and a CKV interface.

3. The scan driving method according to claim 2, wherein The output signals of the first OE interface and the second OE interface are adaptively adjusted according to the real-time state of the external video signal, comprising: When the external video signal is stable, the output signals of the first OE interface and the second OE interface are inverted; When the external video signal source is switched, the output signals of the first OE interface and the second OE interface are both high.

4. The scan driving method according to claim 3, wherein After the scanning output signal is high, it further comprises: Only when the rising edge of the odd pulse of the first OE interface output signal, the odd row scanning output signal is pulled low; Only when the rising edge of the even pulse of the first OE interface output signal, the even row scanning output signal is pulled low.

5. A system for scan driving according to any one of claims 1 to 4, characterized in that The system comprises: The first OE interface and the second OE interface are used for outputting signals from the Source IC end to the Gate IC end to control the scanning output signal; An adaptive adjustment unit is used for adaptively adjusting the output signals of the first OE interface and the second OE interface according to the real-time state of the external video signal; A processing unit is used for controlling the scanning output signal to be high or low according to the output signals of the adjusted first OE interface and second OE interface.

6. The system of claim 5, wherein, The system further comprises: An STV interface and a CKV interface are used for outputting signals from the Source IC end to the Gate IC end.

7. The system of claim 6, wherein, The first OE interface, the second OE interface, the STV interface and the CKV interface are mutually independent communication interfaces.

8. Scan driver software, characterized in that The scan driving software adopts the scan driving method as claimed in any one of claims 1-4 to complete scan driving.

9. A computer device, comprising: A computer program product comprising a processor and a memory for storing a computer program which, when executed by the processor, implements the scan driving method as claimed in any one of claims 1-4.

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