Method, system, medium and terminal for repairing screen display abnormalities

Abstract

This invention provides a method, system, medium, and terminal for repairing screen display anomalies. The method includes the following steps: reading the transmission chip used to transmit LVDS signals to obtain target data; calculating the current resolution of the LVDS signal based on the target data; determining whether the current resolution is normal; and resetting the phase-locked loop of the transmission chip when the current resolution is abnormal, thereby repairing the screen display anomaly. This invention continuously monitors the working status of the transmission chip used to transmit LVDS signals in real time to promptly address any anomalies detected, thus effectively repairing screen display anomalies. By monitoring the signal quality of the LVDS signal in real time and determining the resolution of the LVDS signal to avoid screen display anomalies, the stability of the LVDS signal and the screen display effect are ensured. This invention can avoid screen display anomalies caused by chip defects, thereby improving screen quality.

Description

Technical Field

[0001] This invention belongs to the field of screen display technology, and in particular relates to a method, system, medium and terminal for repairing screen display abnormalities. Background Technology

[0002] Typically, in vehicles, chips are used to transmit LVDS (Low Voltage Differential Signaling) signals during screen display. Due to potential problems with the chip itself, the screen may experience slight shaking after the vehicle has been driven for a period of time during normal use. This shaking gradually intensifies and eventually leads to an overall abnormal screen display. During this period, apart from the display abnormality, all other functions of the vehicle's infotainment system are normal, and the system can automatically recover after the display abnormality persists for a period of time.

[0003] To address the aforementioned display issues, the current approach involves processing the chip during the power-on phase. This includes implementing different temperature strategies based on the chip's power-on temperature; performing a secondary initialization of the chip to mitigate signal instability during the power-on phase; and adding anti-static interference strategies to the chip, among other measures, to prevent screen display abnormalities caused by chip problems.

[0004] However, since the aforementioned screen display abnormality problem can occur at any time during vehicle operation, and the time for automatic recovery after the problem occurs may also vary, the above-mentioned chip processing strategy that only addresses the power-on phase cannot fix this problem. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a method, system, medium and terminal for repairing screen display abnormalities, so as to solve the problem that the prior art cannot repair screen display abnormalities.

[0006] Another objective of this invention is to provide a method for repairing screen display abnormalities. By continuously monitoring the working status of the transmission chip used to transmit LVDS signals in real time, abnormalities can be dealt with in a timely manner, thereby effectively repairing screen display abnormalities.

[0007] Another objective of this invention is to provide a system for repairing screen display anomalies. This system monitors the signal quality of the LVDS signal in real time and avoids screen display anomalies by judging the resolution of the LVDS signal, thus ensuring the stability of the LVDS signal and the screen display effect. It can avoid screen display anomalies caused by chip defects and improve screen quality.

[0008] To achieve the above and other related objectives, the present invention provides a method for repairing screen display abnormalities, comprising the following steps: reading a transmission chip used for transmitting LVDS signals to obtain target data; calculating the current resolution of the LVDS signal based on the target data; determining whether the current resolution is normal; and resetting the phase-locked loop of the transmission chip when the current resolution is abnormal, thereby repairing the screen display abnormality.

[0009] To achieve the above and other related objectives, in another aspect, the present invention provides a system for repairing screen display abnormalities, comprising: an acquisition module, a calculation module, a judgment module, and a repair module; the acquisition module is used to read the transmission chip used for transmitting LVDS signals and acquire target data; the calculation module is used to calculate the current resolution of the LVDS signal based on the target data; the judgment module is used to determine whether the current resolution is normal; and the repair module is used to reset the phase-locked loop of the transmission chip when the current resolution is abnormal, so as to repair the screen display abnormality.

[0010] To achieve the above and other related objectives, in another aspect, the present invention provides a storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-described method for repairing screen display abnormalities.

[0011] To achieve the above and other related objectives, in another aspect, the present invention provides a terminal, comprising: a processor and a memory; the memory for storing a computer program; and the processor for executing the computer program stored in the memory, so that the terminal performs the above-described method for repairing screen display abnormalities.

[0012] To achieve the above and other related objectives, in another aspect, the present invention provides a system for repairing screen display abnormalities, including the aforementioned terminal, transmission chip, vehicle infotainment system (SOC), and screen; the vehicle SOC is connected to the transmission chip and is used to output an LVDS signal to the transmission chip; the transmission chip is connected to the screen and is used to transmit the LVDS signal to the screen; wherein, the transmission chip includes a phase-locked loop (PLL); the PLL is used to lock the frequency of the LVDS signal; the terminal is connected to the transmission chip and is used to read the transmission chip and reset the PLL.

[0013] As described above, the method, system, medium, and terminal for repairing screen display abnormalities according to the present invention have the following beneficial effects:

[0014] (1) Compared with the prior art, the present invention continuously monitors the working status of the transmission chip used to transmit LVDS signals in real time, so as to deal with the abnormality in a timely manner after it is detected, thereby effectively repairing the screen display abnormality.

[0015] (2) This invention monitors the signal quality of the LVDS signal in real time and avoids screen display abnormalities by judging the resolution of the LVDS signal, thus ensuring the stability of the LVDS signal and the screen display effect. It can avoid screen display abnormalities caused by chip defects and improve screen quality. Attached Figure Description

[0016] Figure 1 The flowchart shown is an embodiment of the method for repairing screen display abnormalities according to the present invention.

[0017] Figure 2 The flowchart shown is an embodiment of the present invention for calculating the current resolution of an LVDS signal.

[0018] Figure 3 The diagram shown is a structural schematic of an embodiment of the system for repairing screen display abnormalities according to the present invention.

[0019] Figure 4 The flowchart shown is a terminal of the present invention in one embodiment.

[0020] Figure 5 The diagram shown is a structural schematic of another embodiment of the system for repairing screen display abnormalities according to the present invention.

[0021] Figure 6 The flowchart shown is a process of transmitting LVDS signals to the screen using the transmission chip of the present invention in one embodiment.

[0022] Figure 7 The diagram shows the working principle of one embodiment of the method for repairing screen display abnormalities according to the present invention.

[0023] Label Explanation

[0024] 31 Acquisition Module

[0025] 32 Calculation Module

[0026] 33 Judgment Module

[0027] 34 Repair Module

[0028] 41 processors

[0029] 42 Memory

[0030] 51 Terminal

[0031] 52 Transmission Chips

[0032] 53 In-vehicle Infotainment System (SOC)

[0033] 54 screens

[0034] Steps S1 to S4

[0035] Steps S21 to S25

[0036] Steps S51-S52 Detailed Implementation

[0037] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0038] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0039] The present invention provides a method, system, medium, and terminal for repairing screen display anomalies. Compared with existing technologies, the present invention continuously monitors the working status of the transmission chip used to transmit LVDS signals in real time, so as to promptly handle any anomalies detected, thereby effectively repairing screen display anomalies. The present invention also monitors the signal quality of the LVDS signal in real time and avoids screen display anomalies by judging the resolution of the LVDS signal, ensuring the stability of the LVDS signal and the screen display effect. It can avoid screen display anomalies caused by chip defects and improve screen quality.

[0040] like Figure 1 As shown, in one embodiment, the method for repairing screen display abnormalities according to the present invention includes the following steps:

[0041] Step S1: Read the transmission chip used to transmit LVDS signals and obtain the target data.

[0042] Preferably, a protection thread is started to continuously read the transmission chip.

[0043] It should be noted that this thread protection technique is a common technique in the field and will not be elaborated upon here.

[0044] In one embodiment, reading the transmission chip used to transmit LVDS signals to obtain target data includes: reading the internal registers of the transmission chip to obtain the target data.

[0045] It should be noted that the internal registers include: a first high-order register and a first low-order register for reading valid pixels in a row, and a second high-order register and a second low-order register for reading valid pixels in a column.

[0046] It should be noted that the target data includes: the first data stored in the first high-order register, the second data stored in the first low-order register, the third data stored in the second high-order register, and the fourth data stored in the second low-order register.

[0047] In one embodiment, the first data, the second data, the third data, and the fourth data are all binary number strings.

[0048] Step S2: Calculate the current resolution of the LVDS signal based on the target data.

[0049] like Figure 2 As shown, in one embodiment, calculating the current resolution of the LVDS signal based on the target data includes the following steps:

[0050] Step S21: Take the last six digits of the first data, the second data, the third data, and the fourth data respectively.

[0051] Step S22: Shift the last six bits of the first data and the last six bits of the third data to the left by six bits respectively to obtain the fifth data and the sixth data.

[0052] Step S23: Perform an OR operation between the fifth data and the last six bits of the second data to obtain the effective pixels of the row.

[0053] Step S24: Perform an OR operation between the sixth data and the last six bits of the fourth data to obtain the effective pixels of the column.

[0054] It should be noted that there is no specific order for executing steps S23 and S24. Step S23 can be executed first, followed by step S24, or step S24 can be executed first, followed by step S23, or steps S23 and S24 can be executed simultaneously.

[0055] Preferably, steps S21 to S24 above, which involve obtaining the effective pixels of rows and columns, are implemented using a software program. The specific program code is as follows:

[0056] (1) The program code corresponding to step S21 is:

[0057] hhighmask = Hhigh & 0x111111;

[0058] hlowmask = Hlow & 0x111111;

[0059] vhighmask = Vhigh & 0x111111;

[0060] vlowmask = Vlow & 0x111111;

[0061] Wherein, Hhigh represents the first data; Hlow represents the second data; Vhigh represents the third data; Vlow represents the fourth data; hhighmask represents the last six digits of the first data; hlowmask represents the last six digits of the second data; vhighmask represents the last six digits of the third data; and vlowmask represents the last six digits of the fourth data.

[0062] (2) The program code corresponding to step S22 is:

[0063] hhighmask = hhighmask << 6;

[0064] vhighmask = vhighmask << 6;

[0065] Where hhighmask represents the fifth data point; vhighmask represents the sixth data point.

[0066] (3) The program code corresponding to step S23 is:

[0067] Hactive=hhighmask|hlowmask;

[0068] Here, Hactive represents the row's effective pixels.

[0069] (4) The program code corresponding to step S24 is:

[0070] Vactive=vhighmask|vlowmask;

[0071] Here, Vactive represents the column's effective pixels.

[0072] Step S25: Calculate the current resolution based on the effective pixels of the rows and the effective pixels of the columns.

[0073] Specifically, the current resolution = the effective pixels of the row × the effective pixels of the column.

[0074] Step S3: Determine whether the current resolution is normal.

[0075] In one embodiment, determining whether the current resolution is normal includes the following steps:

[0076] The current resolution is compared with the preset resolution to determine whether the current resolution is normal.

[0077] Specifically, if the current resolution is the same as the preset resolution, then the current resolution is normal; if the current resolution is different from the preset resolution, then the current resolution is abnormal.

[0078] In one embodiment, the preset resolution is any one of 1920×720, 1920×1080, and 1280×720.

[0079] It should be noted that the preset resolution is not limited to any one of 1920×720, 1920×1080, or 1280×720, but can be other resolutions. The preset resolution is set in advance, and its specific value is not a limitation of the present invention.

[0080] Preferably, the preset resolution is 1920×720.

[0081] Step S4: When the current resolution is abnormal, reset the phase-locked loop of the transmission chip to repair the screen display abnormality.

[0082] It should be noted that after the LVDS signal is transmitted to the transmission chip, it will be frequency locked by the phase-locked loop (PLL) of the transmission chip to ensure signal transmission. When it is determined that the current resolution does not conform to the setting (different from the preset resolution), the LVDS signal locking operation is performed again by setting the reset register of the PLL, so that the screen display returns to normal.

[0083] It should be noted that when the current resolution is normal, the transmission chip is read again to obtain the corresponding target data, that is, step S1 is executed again, and steps S2 to S4 are executed in a loop.

[0084] Furthermore, the reading operation of the transmission chip in step S1 is executed every preset time by a timer.

[0085] It should be noted that the scope of protection of the method for repairing screen display abnormalities described in this invention is not limited to the execution order of the steps listed in this embodiment. Any solution implemented by adding, subtracting, or replacing steps in the prior art based on the principles of this invention is included within the scope of protection of this invention.

[0086] like Figure 3 As shown, in one embodiment, the system for repairing screen display abnormalities of the present invention includes an acquisition module 31, a calculation module 32, a judgment module 33, and a repair module 34.

[0087] The acquisition module 31 is used to read the transmission chip used to transmit LVDS signals and acquire target data.

[0088] The calculation module 32 is used to calculate the current resolution of the LVDS signal based on the target data.

[0089] The judgment module 33 is used to determine whether the current resolution is normal.

[0090] The repair module 34 is used to reset the phase-locked loop of the transmission chip when the current resolution is abnormal, so as to repair the screen display abnormality.

[0091] It should be noted that the structure and principle of the acquisition module 31, the calculation module 32, the judgment module 33 and the repair module 34 correspond one-to-one with the steps in the above-described method for repairing screen display abnormalities, so they will not be described again here.

[0092] It should be noted that the division of the various modules in the above system is merely a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, these modules can be implemented entirely in software through processing element calls; they can be fully implemented in hardware; or some modules can be implemented by processing element calls to software, while others are implemented in hardware. For example, module x can be a separate processing element, or it can be integrated into a chip within the system. Alternatively, it can be stored as program code in the system's memory, and its function can be called and executed by a processing element. The implementation of other modules is similar. Moreover, these modules can be fully or partially integrated together, or they can be implemented independently. The processing element mentioned here can be an integrated circuit with signal processing capabilities. During implementation, each step of the above method or each of the above modules can be completed through integrated logic circuits in the hardware of the processor element or through software instructions.

[0093] For example, these modules can be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs). As another example, when a module is implemented using processing element scheduler code, the processing element can be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. Furthermore, these modules can be integrated together as a system-on-a-chip (SOC).

[0094] The storage medium of this invention stores a computer program, which, when executed by a processor, implements the aforementioned method for repairing screen display abnormalities. The storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disk, USB flash drive, memory card, or optical disk.

[0095] like Figure 4 As shown, the terminal of the present invention includes a processor 41 and a memory 42.

[0096] The memory 42 is used to store computer programs; preferably, the memory 42 includes various media that can store program code, such as ROM, RAM, magnetic disk, USB flash drive, memory card or optical disk.

[0097] The processor 41 is connected to the memory 42 and is used to execute the computer program stored in the memory 42 so that the terminal performs the above-described method for repairing screen display abnormalities.

[0098] Preferably, the processor 41 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0099] like Figure 5 As shown, in one embodiment, the system for repairing screen display abnormalities of the present invention includes the aforementioned terminal 51, transmission chip 52, vehicle system SOC 53, and screen 54.

[0100] Specifically, the vehicle infotainment system SOC53 is connected to the transmission chip 52 and is used to output LVDS signals to the transmission chip 52.

[0101] It should be noted that a vehicle infotainment system (SoC) is a dedicated integrated circuit that contains a complete system and embeds all the software.

[0102] Specifically, the transmission chip 52 is connected to the screen 54 and is used to transmit the LVDS signal to the screen 54; wherein, the transmission chip 52 includes a phase-locked loop.

[0103] It should be noted that the phase-locked loop is used to lock the frequency of the LVDS signal.

[0104] Specifically, the terminal 51 is connected to the transmission chip 52 and is used to read the transmission chip 52 and reset the phase-locked loop.

[0105] In one embodiment, the transmission chip 52 employs a serialization chip and a deserialization chip.

[0106] Preferably, the serialization chip is a TI947 chip; the deserialization chip is a TI948 chip.

[0107] like Figure 6 As shown, in one embodiment, the transmission chip 52 transmits the LVDS signal to the screen via the following steps:

[0108] Step S51: The serialization chip performs serialization processing on the LVDS signal to obtain the serialized signal, and transmits the serialized signal to the deserialization chip.

[0109] Step S52: The deserialization chip performs deserialization processing on the serialized signal and transmits the deserialization result to the screen for display on the screen.

[0110] It should be noted that the screen display anomaly repair system of the present invention can implement the screen display anomaly repair method of the present invention, but the implementation device of the screen display anomaly repair method of the present invention includes, but is not limited to, the structure of the screen display anomaly repair system listed in this embodiment. All structural modifications and substitutions of the prior art made according to the principle of the present invention are included within the protection scope of the present invention.

[0111] The following specific embodiments will further explain the implementation method of the present invention for repairing screen display abnormalities.

[0112] like Figure 7 As shown, in one embodiment, the method for repairing screen display anomalies is applied to an in-vehicle screen; specifically, the working principle of the method for repairing screen display anomalies is as follows:

[0113] First, after the user starts the vehicle, the vehicle's infotainment system wakes up the MCU, which then powers on the vehicle's system-on-a-chip (SOC) and the in-vehicle screen, enabling them to start up.

[0114] It should be noted that when the vehicle's SOC starts up, the TI chips (including the TI947 and TI948 chips) will also be initialized during startup to ensure that they can transmit the LVDS signals output by the vehicle's SOC normally.

[0115] Then, a protection thread is started to continuously read the TI chip in order to obtain the resolution of the corresponding LVDS signal based on the reading results.

[0116] Finally, the current resolution is checked to determine if it is normal.

[0117] If the operation is abnormal, the phase-locked loop of the TI chip will be reset; otherwise, if the operation is normal, the next read operation on the TI chip will be performed.

[0118] In summary, the method, system, medium, and terminal for repairing screen display anomalies of the present invention, compared with the prior art, achieve effective repair of screen display anomalies by continuously monitoring the working status of the transmission chip used to transmit LVDS signals in real time, and promptly handling any anomalies detected. The present invention also monitors the signal quality of the LVDS signal in real time and avoids screen display anomalies by judging the resolution of the LVDS signal, ensuring the stability of the LVDS signal and the screen display effect. This invention can avoid screen display anomalies caused by chip defects, thus improving screen quality. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0119] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A method for repairing screen display abnormalities, characterized in that, Includes the following steps: The target data is obtained by reading the transmission chip used to transmit LVDS signals; Calculate the current resolution of the LVDS signal based on the target data; Determine if the current resolution is normal; When the current resolution is abnormal, the phase-locked loop of the transmission chip is reset to repair the problem. The screen is displaying abnormally; The step of reading the transmission chip used to transmit LVDS signals and obtaining the target data includes: The target data is obtained by reading the internal registers of the transmission chip; wherein, The internal registers include: a first high-order register and a first low-order register for reading valid pixels in a row, and a second high-order register and a second low-order register for reading valid pixels in a column; The target data includes: first data stored in the first high-order register, second data stored in the first low-order register, third data stored in the second high-order register, and fourth data stored in the second low-order register; the first data, the second data, the third data, and the fourth data are all binary number strings. Calculating the current resolution of the LVDS signal based on the target data includes the following steps: Take the last six digits of the first data, the second data, the third data, and the fourth data respectively; Shift the last six bits of the first data and the last six bits of the third data to the left by six bits respectively to obtain the fifth data and the sixth data. Perform a bitwise OR operation between the fifth data and the last six bits of the second data to obtain the effective pixels of the row; Perform an OR operation between the sixth data and the last six bits of the fourth data to obtain the effective pixels of the column; The current resolution is calculated based on the effective pixels in the row and the effective pixels in the column; The current resolution = the number of effective pixels in the row × the number of effective pixels in the column.

2. The method for repairing screen display abnormalities according to claim 1, determining whether the current resolution is normal includes the following steps: The current resolution is compared with the preset resolution to determine whether the current resolution is normal. If the current resolution is the same as the preset resolution, then the current resolution is normal; If the current resolution is different from the preset resolution, then the current resolution is abnormal.

3. The method for repairing screen display abnormalities according to claim 2, wherein the preset resolution is any one of 1920×720, 1920×1080, and 1280×720.

4. An implementation system for repairing a screen display anomaly, characterized by comprising: include: The module includes an acquisition module, a calculation module, a judgment module, and a repair module. The acquisition module is used to read the transmission chip used to transmit LVDS signals and acquire target data; The acquisition module is used for, The target data is obtained by reading the transmission chip used to transmit LVDS signals, including: The target data is obtained by reading the internal registers of the transmission chip; wherein, The internal registers include: a first high-order register and a first low-order register for reading valid pixels in a row, and a second high-order register and a second low-order register for reading valid pixels in a column; The target data includes: first data stored in the first high-order register, second data stored in the first low-order register, third data stored in the second high-order register, and fourth data stored in the second low-order register; the first data, the second data, the third data, and the fourth data are all binary number strings; The calculation module is used to calculate the current resolution of the LVDS signal based on the target data; The calculation module is used for, Calculating the current resolution of the LVDS signal based on the target data includes the following steps: Take the last six digits of the first data, the second data, the third data, and the fourth data respectively; Shift the last six bits of the first data and the last six bits of the third data to the left by six bits respectively to obtain the fifth data and the sixth data. Perform a bitwise OR operation between the fifth data and the last six bits of the second data to obtain the effective pixels of the row; Perform a bitwise OR operation between the sixth data and the last six bits of the fourth data to obtain the effective pixels of the column; The current resolution is calculated based on the effective pixels in the row and the effective pixels in the column; The current resolution = the effective pixels of the row × the effective pixels of the column; The judgment module is used to determine whether the current resolution is normal; The repair module is used to reset the phase-locked loop of the transmission chip when the current resolution is abnormal, so as to repair the screen display abnormality.

5. A storage medium having stored thereon a computer program, characterized in that When executed by a processor, the computer program implements the method for repairing screen display abnormalities as described in any one of claims 1 to 3.

6. A terminal, characterized in that, include: Processor and memory; The memory is used to store computer programs; The processor is configured to execute the computer program stored in the memory, so that the terminal performs claim 1. The method for fixing screen display abnormalities as described in any one of steps 3.

7. A system for repairing screen display abnormalities, characterized in that, Includes the terminal, transmission chip, vehicle-mounted SoC, and screen as described in claim 6; The vehicle infotainment system (SOC) is connected to the transmission chip and is used to output LVDS signals to the transmission chip; The transmission chip is connected to the screen and is used to transmit the LVDS signal to the screen; wherein... The transmission chip includes a phase-locked loop (PLL); the PLL is used to lock the frequency of the LVDS signal. Certainly; The terminal is connected to the transmission chip and is used to read the transmission chip and to process the phase-locked loop. Reset.

8. The system for repairing screen display abnormalities according to claim 7, wherein the transmission chip employs a serialization chip and a deserialization chip; the transmission chip transmits the LVDS signal to the screen via the following steps: The serialization chip performs serialization processing on the LVDS signal to obtain the serialized signal, and transmits the serialized signal to the deserialization chip; The deserialization chip performs deserialization processing on the serialized signal and transmits the deserialized result to the screen for display.

Images