EP-4738323-A1 - ON SCREEN DISPLAY METHOD AND APPARATUS FOR VEHICLE-MOUNTED SYSTEM, AND CHIP AND TERMINAL

EP4738323A1EP 4738323 A1EP4738323 A1EP 4738323A1EP-4738323-A1

Abstract

The present disclosure provides a screen display method and apparatus for an in-vehicle system, a chip, and a terminal. The screen display method comprises: detecting state parameters of a plurality of screens respectively to determine whether any of the plurality of screens is in an abnormal state; when determining that a screen is in an abnormal state, initiating defective-pixel detection of the screen to scan and determine whether the abnormal region of the screen displays normally; when the abnormal region cannot normally display, displaying the content corresponding to the abnormal region in a normal display region of the screen. Thus, when there exists a screen having an abnormal region in an in-vehicle system in which multiple screens perform collaborative operation, it is possible to rapidly and in real time determine whether the abnormal region can be normally displayed, and, for an abnormal region of a screen that cannot be normally displayed, to cause the content corresponding to the abnormal region to be clearly and completely displayed through multi-screen collaboration, thereby preventing a damaged screen from affecting normal human-machine interaction operations and thus improving the user experience and driving safety before repair.

Inventors

LIN, CHIHYING
CHEN, YEN HSUN

Assignees

Chipone Technology (Beijing) Co., Ltd.

Dates

Publication Date: 20260506
Application Date: 20230830

Claims (13)

A screen display method for an in-vehicle system, the in-vehicle system being used to achieve collaborative operations among a plurality of screens in the vehicle, wherein the screen display method comprises: detecting state parameters of the plurality of screens respectively to determine whether any of the plurality of screens is in an abnormal state; when determining that a screen is in the abnormal state, initiating defective-pixel detection of the screen to scan and determine whether content display in an abnormal region of the screen is normal; when the determined result indicates that the abnormal region cannot normally display, displaying the content corresponding to the abnormal region in a normal display region of a screen, the normal display region of the screen comprises a normal display region of the screen that is currently in the abnormal state and/or a display region of a screen that is not in an abnormal state.
The screen display method for an in-vehicle system according to claim 1, wherein the state parameters at least comprise: a detection feedback signal of a gate-driver circuit, a detection feedback signal of panel damage/contamination, and a detection feedback signal of touch short/open circuit.
The screen display method for an in-vehicle system according to claim 2, wherein the abnormal state comprises: the screen being in a damaged state or a contaminated state, and the step of initiating defective-pixel detection of the screen to scan and determine whether content display in the abnormal region of the screen is normal when determining that a screen is in the abnormal state comprises: determining the abnormal region of the screen according to the defective-pixel detection of the screen; determining that the abnormal region cannot normally display by judging that a state of the abnormal region is a contaminated state.
The screen display method for an in-vehicle system according to claim 3, wherein the step of initiating defective-pixel detection of the screen to scan and determine whether the content display in the abnormal region of the screen is normal when determining that a screen is in the abnormal state further comprises: determining the abnormal region of the screen according to the defective-pixel detection of the screen; determining whether the abnormal region can normally display according to the detection feedback signal of the gate-driver circuit, after judging that a state of the abnormal region is a damaged state; and when determining that the abnormal region in the damaged state can normally display, displaying the content corresponding to the abnormal region at the original position of the current screen, or moving the content to be displayed to a normal display region of the current screen for display, or moving the content to be displayed to a display region of a screen without contamination for display.
The screen display method for an in-vehicle system according to claim 4, wherein the step of displaying the content corresponding to the abnormal region in the normal display region of the screen when the determined result indicates that the abnormal region cannot normally display comprises: determining the content corresponding to the abnormal region of the screen; determining a size of a blank region in the normal display region of the screen in which no active content is displayed; when determining that the blank region is larger than or equal to the abnormal region, placing and displaying the content to be displayed in the blank region; otherwise, adjusting the content to be displayed until it fits the size of the blank region and can be clearly displayed, and then placing and displaying it in the blank region.
The screen display method for an in-vehicle system according to claim 5, wherein the step of displaying the content corresponding to the abnormal region in the normal display region of the screen when the determined result indicates that the abnormal region cannot normally display further comprises: determining the content corresponding to the abnormal region of the screen; determining a size of a blank region in the normal display region of the screen in which no active content is displayed; when determining that the blank region is smaller than the abnormal region, adjusting the transparency of the content to be displayed until it fits the size of the blank region and can be clearly displayed, and then placing and displaying it in the blank region.
The screen display method for an in-vehicle system according to claim 5, wherein the step of displaying the content corresponding to the abnormal region in the normal display region of the screen when the determined result indicates that the abnormal region cannot normally display further comprises: determining the content corresponding to the abnormal region of the screen; determining a size of a blank region in the normal display region of the screen in which no active content is displayed; when determining that the blank region is smaller than the abnormal region, adjusting the size of the normal display region until the content to be displayed fits the normal display region and the content is clearly displayed without overlap, and placing and displaying the content to be displayed in the blank region.
A screen display apparatus for an in-vehicle system, the in-vehicle system being used to achieve collaborative operations among a plurality of in-vehicle screens, wherein the screen display apparatus comprises: a detection module configured to detect state parameters of the plurality of screens respectively in real time so as to determine whether any of the plurality of screens is in an abnormal state; a scanning module configured to, when determining that a screen is in the abnormal state, initiate defective-pixel detection of the screen to scan and determine whether content display in an abnormal region of the screen is normal; a control module configured to, when the determined result indicates that the abnormal region cannot normally display, display the content corresponding to the abnormal region in a normal display region of the screen, wherein the control module is coupled respectively to the plurality of screens so as to control collaborative operations among the plurality of screens, and the normal display region of the screen comprises a normal display region of the screen that is currently in the abnormal state and/or a display region of a screen not in the abnormal state.
The screen display apparatus for an in-vehicle system according to claim 8, wherein the abnormal state comprises: the screen being in a damaged state or a contaminated state, and the scanning module is further configured to: determine the abnormal region of the screen according to the defective-pixel detection of the screen; judge whether the abnormal region is in a contaminated state or a damaged state, and determine whether the abnormal region can normally display.
A chip configured to form a display device together with a display panel module, wherein the chip comprises: the screen display apparatus for an in-vehicle system according to any one of claims 8 to 9, and the display panel module comprises plurality of independently displayed screens.
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-and-display driver-integrated chip.
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.
A terminal comprising: a display device, the display device comprising a display panel module and the chip according to any one of claims 10 to 12.

Description

This application claims priority to Chinese invention application No. 2023107635620, filed on June 27, 2023, titled "SCREEN DISPLAY METHOD AND APPARATUS FOR IN-VEHICLE SYSTEM, CHIP, AND TERMINAL," and incorporates by reference the entire specification, claims, drawings, and abstract of the aforementioned Chinese invention application into this application. TECHNICAL FIELD The present disclosure relates to the field of display technology, and more particularly to a screen display method and apparatus for an in-vehicle system, a chip, and a terminal. BACKGROUND With the increasing popularity of automobiles, more and more vehicles have entered households, but this has also brought about safety concerns related to automobiles. An automotive instrument panel serves as the human-machine interface between the driver and the vehicle, providing essential information such as vehicle operating parameters, faults, mileage, and other data, and is an indispensable component of every vehicle. An automotive instrument panel includes an external display screen and internal circuitry. In related technologies, automotive instrument panels typically incorporate a central processing unit (CPU) in the circuitry to control display functions, with the CPU coupled to the display screen to drive the display of vehicle operating parameters, fault information, mileage, and other data. In existing technologies, an On-Screen Display (OSD) module is usually integrated within the in-vehicle display screen. Meanwhile, the vehicle cockpit control module is data-coupled to the in-vehicle display screen, transmitting various driving data such as driving data and entertainment data to the OSD module of the in-vehicle display screen. Under such an architecture, the in-vehicle cockpit control module and the OSD module operate under the same control logic. If either the OSD module or the cockpit control module (the CPU responsible for display control) fails, the entire in-vehicle display system will be unable to function properly. During driving, a black screen on the instrument panel display can affect the driver's ability to operate the vehicle. Additionally, display screens often suffer from localized damage during use, especially under external forces, leading to issues such as blackouts, blurred display, color deficiency, flickering, and jittering around the damaged area. These issues severely impact the display quality. Even when only a small area is damaged, although it affects content display, users typically do not immediately replace or repair the screen due to high costs or situational constraints (e.g., while driving). As a result, users may continue using the vehicle with a damaged screen for some time. A damaged screen affects normal human-machine interaction operations, leading to reduced driving safety and potentially causing traffic accidents. Therefore, how to enable a terminal to clearly and completely display the corresponding content in areas affected by screen damage and/or contamination, thereby enhancing user experience, remains an unresolved issue. SUMMARY OF THE DISCLOSURE To address the aforementioned technical problems, the present disclosure provides a screen display method and apparatus for an in-vehicle system, a chip, and a terminal, which enable a terminal to clearly and completely display corresponding content in affected areas through multi-screen collaboration when the screen is damaged and/or contaminated, thereby improving user experience and driving safety before repair. In one aspect, the present disclosure provides a screen display method for an in-vehicle system, the in-vehicle system being used to achieve collaborative operations among a plurality of in-vehicle screens, wherein the screen display method comprises: detecting state parameters of the plurality of screens respectively to determine whether any of the plurality of screens is in an abnormal state;when determining that a screen is in the abnormal state, initiating defective-pixel detection of the screen to scan and determine whether content display in an abnormal region of the screen is normal;when the determined result indicates that the abnormal region cannot normally display, displaying the content corresponding to the abnormal region in a normal display region of a screen,the normal display region of the screen comprises a normal display region of the screen that is currently in the abnormal state and/or a display region of a screen that is not in an abnormal state. Optionally, the state parameters at least comprise: a detection feedback signal of a gate-driver circuit, a detection feedback signal of panel damage/contamination, and a detection feedback signal of touch short/open circuit. Optionally, the abnormal state comprises: the screen being in a damaged state or a contaminated state, and the step of initiating defective-pixel detection of the screen to scan and determine whether content display in the abnormal region of the screen is no