On screen display method and apparatus for vehicle-mounted system, and chip and terminal

Abstract

An on screen display method and apparatus for a vehicle-mounted system, and a chip and a terminal. The on screen display method comprises: respectively performing state parameter detection on a plurality of screens, so as to determine whether there is a screen in an abnormal state among the plurality of screens; when it is determined that there is a screen in the abnormal state, starting defective pixel detection of the screen, so as to perform scanning to determine whether the display of an abnormal area of the screen is normal; and when the abnormal area cannot perform displaying normally, displaying, in a normal display area of the screen, content to be displayed which corresponds to the abnormal area. Therefore, when there is a screen with an abnormal area in a vehicle-mounted system in which a plurality of screens are operated in a linked manner, whether the abnormal area can perform displaying normally can be quickly determined in real time, and content to be displayed in the abnormal area of the screen that cannot perform displaying normally is clearly and completely displayed by means of multi-screen linkage, such that a normal human-machine interaction operation is prevented from being affected by a damaged screen, thereby improving the usage experience and driving safety of a user before maintenance.

Description

Screen display method and device, chip and terminal for vehicle-mounted system

[0001] This application claims priority to a Chinese invention application filed on June 27, 2023, with application number 2023107635620 and titled “Screen display method and device, chip and terminal for vehicle-mounted systems”, and incorporates the entire specification, claims, drawings and abstract of the above-mentioned Chinese invention application into this application by reference. Technical Field

[0002] The present disclosure relates to the field of display technology, and in particular to a screen display method and device, chip, and terminal for an in-vehicle system. Background Art

[0003] With the increasing popularity of automobiles, more and more cars are entering millions of households, but this also brings about safety issues. Car instrument clusters are the interface between drivers and cars, providing drivers with necessary information such as vehicle operating parameters, faults, and mileage. They are an essential component of every car.

[0004] An automotive instrument cluster consists of an external display screen and internal circuitry. To display information, these circuits typically incorporate a central processing unit (CPU) to control the display. The CPU is connected to the display screen, driving the display to display information such as vehicle operating parameters, faults, and mileage.

[0005] In existing technology, the On-Screen Display (OSD) module is typically integrated into the vehicle's display screen. Simultaneously, the vehicle's cockpit control module (CCM) is connected to the vehicle's display screen, transmitting various driving data, including driving and entertainment data, to the vehicle's display screen's OSD module. This architecture places the CCM and OSD modules on the same control logic. If either the OSD or the CCM (the CPU controlling the display) fails, the vehicle's display screen will cease to function properly.

[0006] A black screen on the car's instrument panel during driving may affect the driver's driving, or the display screen may often be partially damaged during use. Especially when subjected to external force, problems such as a black screen, blurred display, color loss, jitter and flickering may appear around the damaged area, which seriously affects the display effect of the display screen. Moreover, when only a small area is damaged, although it will affect the content display, users will not immediately replace the screen or repair it due to the high cost or scenario limitations (while driving). Therefore, users may continue to use the car for a period of time with a broken screen, and the broken screen will affect normal human-computer interaction operations. These will lead to poor driving safety and even cause traffic accidents.

[0007] Therefore, how to enable the terminal to clearly and completely display the content to be displayed in the corresponding area when the screen is damaged and / or dirty, thereby improving the user experience becomes a problem to be solved. Summary of the Invention

[0008] In order to solve the above technical problems, the present disclosure provides a screen display method and device, chip and terminal for a vehicle-mounted system, which can enable the terminal to clearly and completely display the content to be displayed in the corresponding area through multi-screen linkage when the screen is damaged and / or the screen is dirty, thereby improving the user experience and driving safety before the screen is repaired.

[0009] In one aspect, the present disclosure provides a screen display method for an in-vehicle system, wherein the in-vehicle system is used to implement linkage operations between multiple in-vehicle screens, wherein the screen display method includes:

[0010] detecting status parameters of the plurality of screens respectively to determine whether any of the plurality of screens is in an abnormal state;

[0011] When it is determined that a screen is in the abnormal state, starting bad pixel detection on the screen to scan and determine whether the content display of the abnormal area of ​​the screen is normal;

[0012] According to the result of the determination, when the abnormal area cannot be displayed normally, the to-be-displayed content corresponding to the abnormal area is displayed in the normal display area of ​​the screen.

[0013] The normal display area of ​​the screen includes a normal display area of ​​the screen that is currently in an abnormal state and / or a display area of ​​the screen that is not in an abnormal state.

[0014] Optionally, the state parameters include at least: a detection feedback signal of a gate drive circuit, a detection feedback signal of panel damage / dirt, and a detection feedback signal of a touch short circuit / open circuit.

[0015] Optionally, the abnormal state includes: the screen is in a damaged state or a dirty state,

[0016] Furthermore, when it is determined that a screen is in the abnormal state, the step of starting bad pixel detection on the screen to scan and determine whether the content display in the abnormal area of ​​the screen is normal includes:

[0017] Determining an abnormal area of ​​the screen based on bad pixel detection on the screen;

[0018] The state of the abnormal area is determined to be a dirt state, and it is determined that the abnormal area cannot be displayed normally.

[0019] Optionally, when it is determined that a screen is in the abnormal state, the step of starting bad pixel detection on the screen to scan and determine whether the content display in the abnormal area of ​​the screen is normal further includes:

[0020] Determining an abnormal area of ​​the screen based on bad pixel detection on the screen;

[0021] determining that the state of the abnormal area is a damaged state, and then determining whether the abnormal area can be displayed normally according to the detection feedback signal of the gate drive circuit;

[0022] When it is determined that the abnormal area in the damaged state can be displayed normally, the content to be displayed corresponding to the abnormal area is displayed at the original position of the current screen, or the content to be displayed is moved to the normal display area of ​​the current screen for display, or the content to be displayed is moved to the display area of ​​the screen without damage for display.

[0023] Optionally, when the abnormal area cannot be displayed normally according to the determination result, the step of displaying the to-be-displayed content corresponding to the abnormal area in the normal display area of ​​the screen includes:

[0024] Determining content to be displayed corresponding to the abnormal area of ​​the screen;

[0025] Determine the size of the blank area in the normal display area of ​​the screen that does not display valid content;

[0026] When it is determined that the blank area is larger than or equal to the abnormal area, the content to be displayed is placed in the blank area for display; otherwise, the content to be displayed is adjusted until it fits the size of the blank area and can be displayed clearly, and then placed in the blank area for display.

[0027] Optionally, when the abnormal area cannot be displayed normally according to the determination result, the step of displaying the to-be-displayed content corresponding to the abnormal area in the normal display area of ​​the screen further includes:

[0028] Determining content to be displayed corresponding to the abnormal area of ​​the screen;

[0029] Determine the size of the blank area in the normal display area of ​​the screen that does not display valid content;

[0030] When it is determined that the blank area is smaller than the abnormal area, the transparency of the content to be displayed is adjusted until it fits the size of the blank area and can be displayed clearly, and then it is placed in the blank area for display.

[0031] Optionally, when the abnormal area cannot be displayed normally according to the determination result, the step of displaying the to-be-displayed content corresponding to the abnormal area in the normal display area of ​​the screen further includes:

[0032] Determining content to be displayed corresponding to the abnormal area of ​​the screen;

[0033] Determine the size of the blank area in the normal display area of ​​the screen that does not display valid content;

[0034] When it is determined that the blank area is smaller than the abnormal area, the size of the normal display area is adjusted until the content to be displayed fits the normal display area and the content is clearly displayed without overlapping, and the content to be displayed is placed in the blank area for display.

[0035] On the other hand, the present disclosure further provides a screen display device for an in-vehicle system, wherein the in-vehicle system is used to implement linkage operations between multiple in-vehicle screens, wherein the screen display device includes:

[0036] a detection module, configured to detect status parameters of the plurality of screens respectively in real time to determine whether any of the plurality of screens is in an abnormal state;

[0037] a scanning module, configured to, when determining that a screen is in the abnormal state, initiate bad pixel detection on the screen, so as to scan and determine whether the content display in the abnormal area of ​​the screen is normal;

[0038] The control module is configured to display the to-be-displayed content corresponding to the abnormal area in the normal display area of ​​the screen when the abnormal area cannot be displayed normally according to the determination result,

[0039] The control module is connected to the multiple screens respectively to control the linkage operation between the screens, and the normal display area of ​​the screen includes the normal display area of ​​the screen that is currently in an abnormal state and / or the display area of ​​the screen that is not in an abnormal state.

[0040] Optionally, the abnormal state includes: the screen is in a damaged state or a dirty state,

[0041] Furthermore, the scanning module is further configured to:

[0042] Determining an abnormal area of ​​the screen based on bad pixel detection on the screen;

[0043] It is determined whether the abnormal area is in a dirty state or a damaged state, and whether the abnormal area can be displayed normally.

[0044] On the other hand, the present disclosure further provides a chip for forming a display device together with a display panel module, wherein the chip includes:

[0045] As mentioned above, the screen display device for the vehicle-mounted system,

[0046] Furthermore, the display panel module includes a plurality of independent display screens.

[0047] Optionally, the chip is any one selected from the group consisting of a display driver chip and a touch display driver integrated chip.

[0048] Optionally, the display panel is any one selected from the group consisting of a liquid crystal display panel, an OLED display panel, an LED display panel, a QLED display panel, a Mini-LED display panel and a Micro-LED display panel.

[0049] On the other hand, the present disclosure further provides a terminal, which includes: a display device, wherein the display device includes a display panel module and the chip as described above.

[0050] The beneficial effects of the present invention are as follows: according to the present disclosure, a screen display method and device, chip and terminal for an in-vehicle system are provided, wherein the in-vehicle system is used to realize the linkage operation between multiple screens on the vehicle, and the screen display method includes: detecting the status parameters of the multiple screens respectively to determine whether any of the multiple screens is in an abnormal state; when it is determined that a screen is in the abnormal state, starting the bad pixel detection of the screen to scan and determine whether the content display of the abnormal area of ​​the screen is normal; according to the result of the determination, when the abnormal area cannot be displayed normally, the content to be displayed corresponding to the abnormal area is displayed in the normal display area of ​​the screen. In this way, when there is a screen with an abnormal area in the in-vehicle system with multiple screens operating in linkage, it is possible to quickly and in real time determine whether the abnormal area can be displayed normally, and the content to be displayed in the abnormal area of ​​the screen that cannot be displayed normally can be displayed clearly and completely through multi-screen linkage, so as to avoid the damaged screen affecting the normal human-computer interaction operation, thereby improving the user experience and driving safety before repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The above and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings.

[0052] FIG1 is a schematic structural diagram of a multi-screen control vehicle system in the prior art;

[0053] FIG2 is a schematic flow chart showing a screen display method for an in-vehicle system according to an embodiment of the present disclosure;

[0054] FIG3 is a schematic diagram showing an application model of the screen display method shown in FIG2 in one embodiment;

[0055] 4a to 4c are schematic diagrams showing various state parameters detected in the screen display method shown in FIG. 2 ;

[0056] FIG5 is a schematic diagram showing the distribution of abnormal areas and normal display areas detected in the model shown in FIG3 ;

[0057] 6a to 6b are schematic diagrams showing the effects of executing the screen display method shown in FIG. 2 in different embodiments;

[0058] FIG7 shows a schematic structural diagram of a screen display device for an in-vehicle system provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0059] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure may be implemented in various forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the present disclosure.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present disclosure. The terms used in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0061] Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings.

[0062] FIG1 shows a schematic structural diagram of a multi-screen control vehicle-mounted system in the prior art.

[0063] Referring to Figure 1, it can be seen that the more common multi-screen control in-vehicle systems include: in-vehicle host, steering wheel screen, instrument screen, HUD screen (short for head-up display, a head-up display device) and central control screen. The in-vehicle host is the core part of the in-vehicle audio and video system and is installed in the vehicle's cockpit. Its main function is to play audio sources. In a vehicle-mounted system that implements multi-screen control, preparations are first performed to confirm that the steering wheel screen, instrument screen, HUD screen, and central control screen are respectively connected to the vehicle host. Specifically, the steering wheel screen, instrument screen, HUD screen, and central control screen are respectively connected to the vehicle host through low-voltage differential signal harnesses, so that the contents of the steering wheel screen, instrument screen, HUD screen, and central control screen (i.e., touch events) can be sent to the vehicle host, so that the touch screen content is converted into touch events in the vehicle host and aggregated to the event bus, so that the event sources from the steering wheel screen, HUD screen, and instrument screen and the event targets from the central control screen can be aggregated to the event bus in the vehicle host, and finally the events are displayed on the steering wheel screen, HUD screen, instrument screen, and central control screen respectively.

[0064] With the continuous development of current technology, the functions that can be achieved by vehicle-mounted head units are also gradually improving. Each car model and function are different, so the vehicle-mounted head units in each car are different. Existing systems have a mainboard fixed to the bottom of the housing, with the chip module mounted on the mainboard. In addition to the chip module, the mainboard is also arranged with various other components. The layout of these components is highly versatile. To improve the functions of existing vehicle-mounted head units, only the chip module needs to be replaced.

[0065] The central control screen is located directly in front of the vehicle, to the driver's right. It's almost standard in modern cars. Mainstream screen solutions can be broadly categorized as connected, flat, and vertical. A few models feature triple or straight screens, and some even omit the instrument cluster, retaining only the central control screen. Installed in the center console of the vehicle's in-car navigation system, it controls audio and video signals, assists with driving, provides communications, and provides navigation.

[0066] The car's instrument panel is composed of various instruments, indicators, and especially driver warning lights and alarms, which provide the driver with the required information on the car's operating parameters.

[0067] The car's HUD screen uses optical reflection to project important system information, such as navigation and Bluetooth phone information, onto the front windshield, displaying it in color. This feature eliminates the need for drivers to look down at the dashboard to check vehicle information while driving, ensuring they can focus on the device.

[0068] Many concept cars have screens built into the steering wheel. The latest Ideal L9 eliminates the instrument panel and adds a HUD and steering wheel screen. Some designs use the steering wheel screen as an information reading device.

[0069] In addition, to suit different preferences, some cars include: a smart rearview screen installed on the rearview mirror of the vehicle-mounted navigation vehicle for synchronously displaying the audio and video signals, driving records, one-button rescue and network communication functions of the main control screen module; a headrest screen installed on the back of the front seat headrest of the vehicle-mounted navigation vehicle for synchronously displaying the audio and video signals, latitude and longitude information display, and vehicle speed information display functions of the main control screen module. The vehicle-mounted air-conditioning screen is not standard. Traditional models use physical buttons to control it. Gradually, screens are combined with physical buttons, until now, the air-conditioning screen replaces the physical buttons. Most new energy vehicles will put the air-conditioning settings in the central control screen. We will not list them one by one here, but only give an overview of the vehicle-mounted systems of the above four screens, aiming to provide a screen display method when screen abnormalities occur in the application scenario of multi-screen control.

[0070] As previously mentioned, a black screen on a car's instrument panel during driving can affect the driver's driving. Alternatively, a screen often becomes partially damaged during use, resulting in black screen, blurred display, color loss, flickering, and other issues around the damaged area. This can affect the display quality and pose a safety hazard. Furthermore, when only a small area of ​​damage occurs, while content display may be affected, users may not immediately replace or repair the screen due to the high cost or limited use cases (e.g., while driving). Consequently, users may continue to use the car for a period of time with a damaged screen, which in turn affects normal human-computer interaction. This can lead to poor driving safety and even cause traffic accidents. Based on this, a screen display method for an in-vehicle system is provided in an embodiment of the present disclosure. This method allows, in an in-vehicle system with multiple screens operating in conjunction, to clearly and completely display the content to be displayed in the abnormal area of ​​the screen that is not displaying properly through multi-screen linkage, thus avoiding the impact of missing or incomplete display content caused by the damaged screen, which could affect normal human-computer interaction, thereby improving the user experience and driving safety before repairs.

[0071] Figure 2 is a flow chart of a screen display method for an in-vehicle system provided in an embodiment of the present disclosure, Figure 3 is a schematic diagram of an application model of the screen display method shown in Figure 2 in one embodiment, Figures 4a to 4c are schematic diagrams of various state parameters detected in the screen display method shown in Figure 2, and Figure 5 is a schematic diagram of the distribution of abnormal areas and normal display areas detected in the model shown in Figure 3.

[0072] With reference to FIG2 and FIG3, an embodiment of the present disclosure provides a screen display method for an in-vehicle system, wherein the in-vehicle system is used to implement linkage operations between independent product modules where multiple in-vehicle screens are located (such as the independent product modules where the steering wheel screen, instrument screen, HUD screen, and central control screen are located as described in FIG1 above, where the product modules include, for example, a display screen and a control circuit connected to control the display screen, etc., the same below). The screen display method includes:

[0073] S110: Detecting status parameters of the multiple screens respectively to determine whether any of the multiple screens is in an abnormal state.

[0074] In step S110, the state parameters include at least the detection feedback signal of the gate drive circuit, the detection feedback signal of panel damage / dirt, and the detection feedback signal of touch short circuit / open circuit, as shown in Figures 4a to 4c. The abnormal state includes: the screen is in a damaged state or a dirty state.

[0075] S120: When it is determined that a screen is in the abnormal state, start bad pixel detection on the screen to scan and determine whether the content display in the abnormal area of ​​the screen is normal.

[0076] In some embodiments, when it is determined that a screen is in the abnormal state, the step of starting bad pixel detection on the screen to scan and determine whether the content display in the abnormal area of ​​the screen is normal may include:

[0077] According to the bad pixel detection of the screen, the abnormal area A1 of the screen is determined, as shown in FIG5 , and the area other than the abnormal area A1 of the screen is the normal display area A2;

[0078] The state of the abnormal area is determined to be a dirt state, and it is determined that the abnormal area cannot be displayed normally.

[0079] In other embodiments, when it is determined that a screen is in the abnormal state, the step of initiating bad pixel detection on the screen to scan and determine whether the content displayed in the abnormal area of ​​the screen is normal may further include:

[0080] Determining an abnormal area of ​​the screen based on bad pixel detection on the screen;

[0081] determining that the state of the abnormal area is a damaged state, and then determining whether the abnormal area can be displayed normally according to the detection feedback signal of the gate drive circuit;

[0082] When it is determined that the abnormal area in the damaged state can be displayed normally, the content to be displayed corresponding to the abnormal area is displayed at the original position of the current screen, or the content to be displayed is moved to the normal display area of ​​the current screen for display, as shown in Figure 6a, or the content to be displayed is moved to the display area of ​​the screen without damage for display, as shown in Figure 6b.

[0083] S130: When the abnormal area cannot be displayed normally according to the determination result, the to-be-displayed content corresponding to the abnormal area is displayed in the normal display area of ​​the screen.

[0084] In step S130, the normal display area of ​​the screen includes the normal display area of ​​the screen currently in an abnormal state and / or the display area of ​​the screen without an abnormal state.

[0085] In some embodiments, when the abnormal area cannot be displayed normally according to the determination result, the step of displaying the to-be-displayed content corresponding to the abnormal area in the normal display area of ​​the screen may include:

[0086] Determining content to be displayed corresponding to the abnormal area of ​​the screen;

[0087] Determine the size of the blank area in the normal display area of ​​the screen that does not display valid content;

[0088] When it is determined that the blank area is larger than or equal to the abnormal area, the content to be displayed is placed in the blank area for display; otherwise, the content to be displayed is adjusted until it fits the size of the blank area and can be displayed clearly, and then placed in the blank area for display.

[0089] In some embodiments, when the abnormal area cannot be displayed normally according to the determination result, the step of displaying the to-be-displayed content corresponding to the abnormal area in the normal display area of ​​the screen may further include:

[0090] Determining content to be displayed corresponding to the abnormal area of ​​the screen;

[0091] Determine the size of the blank area in the normal display area of ​​the screen that does not display valid content;

[0092] When it is determined that the blank area is smaller than the abnormal area, the transparency of the content to be displayed is adjusted until it fits the size of the blank area and can be displayed clearly, and then it is placed in the blank area for display.

[0093] In some embodiments, when the abnormal area cannot be displayed normally according to the determination result, the step of displaying the to-be-displayed content corresponding to the abnormal area in the normal display area of ​​the screen may further include:

[0094] Determining content to be displayed corresponding to the abnormal area of ​​the screen;

[0095] Determine the size of the blank area in the normal display area of ​​the screen that does not display valid content;

[0096] When it is determined that the blank area is smaller than the abnormal area, the size of the normal display area is adjusted until the content to be displayed fits the normal display area and the content is clearly displayed without overlapping, and the content to be displayed is placed in the blank area for display.

[0097] In this embodiment, whether any screen is in an abnormal state, that is, whether it is in a damaged and / or dirt-covered state, is determined by detecting the status parameters of each screen in the vehicle system in real time. For example, by simulating a user's screen-clicking operation, it is detected whether there are any pixels in the vehicle-mounted multi-screen that do not respond after clicking the screen (that is, touching. Of course, the operated screen must be a touch screen. If it is not a touch screen, damage / dirt detection and gate drive circuit detection are performed in combination with actual conditions, the same below). If so, it can be determined that the vehicle-mounted multi-screen is in a damaged and / or dirt state, thereby starting bad pixel detection to determine the abnormal area of ​​the screen. Then, based on the detection response of touch short circuit / open circuit in the abnormal area (non-touch screens only have panel damage / dirt detection and gate drive signal detection, while touch screens have touch detection in addition to the above two detection methods), the display mode of the content to be displayed corresponding to the abnormal area is determined, and the single-screen content is migrated for display, or the migration display of multiple screens in linkage operation is performed. In this way, the problem of unclear display of some content to be displayed on multiple in-vehicle screens when the screens are damaged and / or dirty, which causes inconvenience to the user, is avoided, and the damaged screen is prevented from affecting normal human-computer interaction operations, thereby improving the user experience and driving safety before maintenance.

[0098] In one implementation scenario, an on-screen display (OSD) can display special graphics or text to alert users in an emergency. However, if the display area of ​​the OSD is damaged, the OSD may not display properly or completely, resulting in missing or omitted information.

[0099] Referring to Figure 3, OSD is first enabled, and fault detection is performed on the status of various preset hardware and the connection status between them, as well as the status parameters, to eliminate all interference factors that affect the display of important content to improve driving safety.

[0100] When it is confirmed that there is no abnormality through fault detection and status detection, the OSD display of each screen is carried out normally, and the display position of each preset information on each screen remains unchanged; when it is found that the fault detection or status detection is abnormal, the detected state parameters are analyzed, and when it is first determined that a screen is in the abnormal state, the bad pixel detection of the screen is started to scan and determine the abnormal area of ​​the screen, and determine whether the panel is damaged in the abnormal area. When it is determined that the abnormal area of ​​the current screen is in a damaged state, it is determined that it cannot be displayed normally in the abnormal area, and the OSD position is moved, and specifically the to-be-displayed content corresponding to the abnormal area is displayed in the normal display area of ​​the screen; when it is determined that the abnormal area of ​​the current screen is in an undamaged state (i.e. If the gate drive circuit detects damage or dirt, the system determines whether the display in the abnormal area of ​​the screen is normal. If the gate drive circuit detects no abnormality, this indicates that the abnormal area is only contaminated or cracked but has not damaged the driver display circuit or pixel cells. If there are cracks but no damage to the driver display circuit or pixel cells, the OSD remains in the same position and the screen continues to display. If there is dirt on the surface, the OSD remains in the same position and the screen continues to display. If the gate drive circuit detects abnormality or the dirt cannot be removed, affecting the display of important information, the OSD in the abnormal area is moved to the normal display area of ​​the current screen or to the display area of ​​an undamaged screen. This is not limited to the current screen but can be moved to other screens in the vehicle system. The vehicle host (on-board computer) can be configured to display the entire vehicle screen. This allows the terminal to clearly and completely display the corresponding content through multi-screen linkage even when the screen is damaged and / or dirty, thereby improving the user experience and driving safety before the screen is repaired.

[0101] In addition, when the OSD detects an abnormality, in addition to projecting the to-be-displayed content in the abnormal area to the normal display area of ​​the current screen or other normal screens for display, it can also warn the user in different forms through sound, LED, warning characters or images on the HUD screen, etc., thereby improving driving safety.

[0102] FIG7 shows a schematic structural diagram of a screen display device for an in-vehicle system provided by an embodiment of the present disclosure.

[0103] On the other hand, an embodiment of the present disclosure also provides a screen display device for a vehicle-mounted system, wherein the vehicle-mounted system is used to realize the linkage operation between independent product modules where multiple vehicle-mounted screens are located. As shown in FIG7 , the screen display device 200 includes: a detection module 210 , a scanning module 220 and a control module 230 .

[0104] The detection module 210 is configured to perform real-time status parameter detection on each of the multiple screens (in this embodiment, screen 1, screen 2, screen 3, and screen 4 are used to represent multi-screen linkage, but the number is not a limitation of the present disclosure, the same applies above) to determine whether any of the multiple screens is in an abnormal state. The scanning module 220 is configured to, upon determining that a screen is in the abnormal state, initiate bad pixel detection on the screen to scan and determine whether the content display in the abnormal area of ​​the screen is normal. The control module 230 is configured to, upon determining that the abnormal area cannot be displayed normally, display the to-be-displayed content corresponding to the abnormal area in the normal display area of ​​the screen. The control module 230 is respectively connected to the independent product modules (screen 1, screen 2, screen 3, and screen 4) in which the multiple screens are located to control the linkage operation between the screens. The normal display area of ​​the screen includes the normal display area of ​​the screen currently in the abnormal state and / or the display area of ​​the screen not in the abnormal state.

[0105] In some embodiments, the abnormal state includes: the screen is in a damaged state or a dirty state,

[0106] Furthermore, the scanning module 220 is further configured to:

[0107] Determining an abnormal area of ​​the screen based on bad pixel detection on the screen;

[0108] It is determined whether the abnormal area is in a dirty state or a damaged state, and whether the abnormal area can be displayed normally.

[0109] On the other hand, the present disclosure further provides a chip (not shown) for forming a display device together with a display panel module, wherein the chip includes:

[0110] As described in the above embodiment, the screen display device 200 for the vehicle-mounted system,

[0111] Furthermore, the display panel module includes a plurality of independent display screens (in this embodiment, screen 1, screen 2, screen 3 and screen 4 are used to represent multi-screen linkage, but the number is not a limitation to this embodiment).

[0112] In this embodiment, the chip is selected from the group consisting of a display driver chip and a touch display driver integrated chip. In this embodiment, the display driver chip is configured to detect dirty or damaged areas on a display panel (including multiple screens), thereby enabling detection to confirm whether the display panel contains damaged areas. If detection reveals a dirty or damaged area on the display panel, the feedback signal is analyzed using the method described in the above embodiment to determine whether the content to be displayed in that area can be displayed normally. If not, the content to be displayed is transferred to the normal display area of ​​the current screen or to the normal display area of ​​another screen.

[0113] In this embodiment, the display panel is any one selected from the group consisting of a liquid crystal display panel, an OLED display panel, an LED display panel, a QLED display panel, a Mini-LED display panel, and a Micro-LED display panel.

[0114] On the other hand, an embodiment of the present disclosure also provides a terminal, such as a vehicle-mounted system with multi-screen control to realize multi-screen linkage operation, wherein the terminal includes: a display device, and the display device includes a display panel module, and a chip as described in the above embodiment.

[0115] In a feasible embodiment, the terminal is an electronic device selected from the group consisting of an electronic dashboard, an in-vehicle entertainment system, a flat-panel display device, a curved display device, a smart TV, a smart phone, a smart watch, a smart bracelet, a head-mounted display device, a tablet computer, a laptop computer, an all-in-one computer, a financial transaction device, an ATM, an interactive information service station (KIOSK), an electronic device serving as a point of sales (POS) terminal, an in-vehicle entertainment system, and an access control device.

[0116] In summary, according to the embodiments of the present disclosure, a screen display method and device, chip and terminal for an in-vehicle system are provided, wherein the in-vehicle system is used to realize the linkage operation between independent product modules where multiple screens are located in the vehicle, and the screen display method includes: detecting the status parameters of the multiple screens respectively to determine whether there is a screen in an abnormal state among the multiple screens; when it is determined that a screen is in the abnormal state, starting the bad pixel detection of the screen to scan and determine whether the content display of the abnormal area of ​​the screen is normal; according to the result of the determination, when the abnormal area cannot be displayed normally, the content to be displayed corresponding to the abnormal area is displayed in the normal display area of ​​the screen. In this way, when there is a screen with an abnormal area in the in-vehicle system with multiple screens operating in linkage, it is possible to quickly and in real time determine whether the abnormal area can be displayed normally, and the content to be displayed in the abnormal area of ​​the screen that cannot be displayed normally can be displayed clearly and completely through multi-screen linkage, so as to avoid the damaged screen affecting the normal human-computer interaction operation, thereby improving the user experience and driving safety before maintenance.

[0117] It should be noted that in the description of the present disclosure, it needs to be understood that the terms "upper", "lower", "inner", etc., which indicate orientation or positional relationships, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0118] In addition, as used herein, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0119] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present disclosure and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. Obvious variations or modifications arising therefrom remain within the scope of protection of the present disclosure.

Claims

1. A screen display method for a vehicle-mounted system, wherein the vehicle-mounted system is used to realize linkage operation between multiple vehicle-mounted screens, wherein: The screen display method comprises: Detecting status parameters of the multiple screens respectively to determine whether any of the multiple screens is in an abnormal state; When it is determined that a screen is in the abnormal state, starting bad pixel detection on the screen to scan and determine whether the content display in the abnormal area of ​​the screen is normal; According to the result of the determination, when the abnormal area cannot be displayed normally, the to-be-displayed content corresponding to the abnormal area is displayed in the normal display area of ​​the screen, The normal display area of ​​the screen includes a normal display area of ​​the screen that currently has an abnormal state and / or a display area of ​​the screen that does not have an abnormal state.

2. The screen display method for a vehicle-mounted system according to claim 1, wherein: The state parameters at least include: a detection feedback signal of a gate drive circuit, a detection feedback signal of panel damage / dirt, and a detection feedback signal of a touch short circuit / open circuit.

3. The screen display method for a vehicle-mounted system according to claim 2, wherein: The abnormal state includes: the screen is in a damaged state or a dirty state, Furthermore, when it is determined that a screen is in the abnormal state, the step of starting bad pixel detection on the screen to scan and determine whether the content display in the abnormal area of ​​the screen is normal includes: Determining an abnormal area of ​​the screen according to bad pixel detection of the screen; The state of the abnormal area is judged to be a dirt state, and it is determined that the abnormal area cannot be displayed normally.

4. The screen display method for a vehicle-mounted system according to claim 3, wherein: When it is determined that a screen is in the abnormal state, the step of starting bad pixel detection on the screen to scan and determine whether the content display in the abnormal area of ​​the screen is normal also includes: Determining an abnormal area of ​​the screen according to bad pixel detection of the screen; Determining that the state of the abnormal area is a damaged state, and then determining whether the abnormal area can be displayed normally according to the detection feedback signal of the gate drive circuit; When it is determined that the abnormal area in a damaged state can be displayed normally, the content to be displayed corresponding to the abnormal area is displayed at the original position of the current screen, or the content to be displayed is moved to the normal display area of ​​the current screen for display, or the content to be displayed is moved to the display area of ​​the screen without contamination for display.

5. The screen display method for a vehicle-mounted system according to claim 4, wherein: The step of displaying the to-be-displayed content corresponding to the abnormal area in the normal display area of ​​the screen when the abnormal area cannot be displayed normally according to the determination result includes: Determining the content to be displayed corresponding to the abnormal area of ​​the screen; Determine the size of the blank area in the normal display area of ​​the screen where no valid content is displayed; When it is determined that the blank area is larger than or equal to the abnormal area, the content to be displayed is placed in the blank area for display; otherwise, the content to be displayed is adjusted until it fits the size of the blank area and can be displayed clearly, and then placed in the blank area for display.

6. The screen display method for a vehicle-mounted system according to claim 5, wherein: The step of displaying the to-be-displayed content corresponding to the abnormal area in the normal display area of ​​the screen when the abnormal area cannot be displayed normally according to the determination result further includes: Determining the content to be displayed corresponding to the abnormal area of ​​the screen; Determine the size of the blank area in the normal display area of ​​the screen where no valid content is displayed; When it is determined that the blank area is smaller than the abnormal area, the transparency of the content to be displayed is adjusted until it fits the size of the blank area and can be displayed clearly, and then it is placed in the blank area for display.

7. The screen display method for a vehicle-mounted system according to claim 5, wherein: The step of displaying the to-be-displayed content corresponding to the abnormal area in the normal display area of ​​the screen when the abnormal area cannot be displayed normally according to the determination result further includes: Determining the content to be displayed corresponding to the abnormal area of ​​the screen; Determine the size of the blank area in the normal display area of ​​the screen where no valid content is displayed; When it is determined that the blank area is smaller than the abnormal area, the size of the normal display area is adjusted until the content to be displayed fits the normal display area and the content is clearly displayed without overlapping, and the content to be displayed is placed in the blank area for display.

8. A screen display device for a vehicle-mounted system, wherein the vehicle-mounted system is used to realize linkage operation between multiple vehicle-mounted screens, wherein: The screen display device comprises: A detection module, used for detecting status parameters of the multiple screens respectively in real time to determine whether any of the multiple screens is in an abnormal state; A scanning module, for starting bad pixel detection on the screen when it is determined that a screen is in the abnormal state, so as to scan and determine whether the content display of the abnormal area of ​​the screen is normal; A control module is used to display the to-be-displayed content corresponding to the abnormal area in the normal display area of ​​the screen when the abnormal area cannot be displayed normally according to the determination result, The control module is connected to the multiple screens respectively to control the linkage operation between the screens, and the normal display area of ​​the screen includes the normal display area of ​​the screen that currently has an abnormal state and / or the display area of ​​the screen that does not have an abnormal state.

9. The screen display device for an in-vehicle system according to claim 8, wherein: The abnormal state includes: the screen is in a damaged state or a dirty state, Furthermore, the scanning module is also used for: Determining an abnormal area of ​​the screen according to bad pixel detection of the screen; It is determined whether the abnormal area is in a dirty state or a damaged state, and whether the abnormal area can be displayed normally.

10. A chip, used together with a display panel module to form a display device, wherein: The chip comprises: A screen display device for a vehicle-mounted system as described in any one of claims 8 to 9, wherein the display panel module includes a plurality of independently displayed screens.

11. The chip according to claim 10, wherein: The chip is any one selected from the group consisting of a display driver chip and a touch display driver integrated chip.

12. The chip according to claim 10, wherein: The display panel is any one selected from the group consisting of a liquid crystal display panel, an OLED display panel, an LED display panel, a QLED display panel, a Mini-LED display panel and a Micro-LED display panel.

13. A terminal, wherein: include: A display device, wherein the display device comprises a display panel module and a chip as claimed in any one of claims 10 to 12.

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