A display verification method, a bridging chip, a display device, and an electronic device

Abstract

The present disclosure relates to the technical field of screen display, and discloses a display verification method, a bridging chip, a display device and an electronic device. The method includes: determining a target detection area corresponding to a to-be-displayed graphic according to initial graphic data corresponding to the to-be-displayed graphic; determining a reference chromaticity value corresponding to the to-be-displayed graphic according to the initial graphic data and the target detection area; determining a real-time chromaticity value corresponding to the to-be-displayed graphic according to real-time graphic data corresponding to the to-be-displayed graphic and the target detection area, wherein the real-time graphic data is obtained after performing display optimization on the to-be-displayed graphic, and the real-time chromaticity value and the reference chromaticity value are mapped in the same chromaticity space; performing display verification according to the reference chromaticity value and the real-time chromaticity value to determine a verification result corresponding to the real-time graphic data. The display verification method of the present disclosure can perform display verification by using the chromaticity value of the target detection area, reduce the influence of visual effect optimization on display verification, and has high accuracy and reliability.

Description

Technical Field

[0001] The present disclosure relates to the technical field of screen display, and in particular, to a display verification method, a bridging chip, a display device, and an electronic device. Background Art

[0002] In vehicle-mounted systems such as instrument screens or center control screens of in-vehicle infotainment (IVI) systems, relevant information regarding vehicle functional safety (such as oil temperature, fuel level, tire pressure, steering icons, battery power, signal strength, etc.) needs to be displayed. When a display failure occurs, it may cause users to be unable to confirm the safety of vehicle functions. Therefore, it is necessary to perform display verification on vehicle-mounted screens. In the prior art, in order to verify whether the displayed information is normal, for the display screen of an IVI system, cyclic redundancy check (CRC) is usually performed on the icon area of the on-screen display (OSD) method. By comparing the CRC reference value pre-stored in the flash memory of the IVI system with the actual CRC value corresponding to the icon displayed on the vehicle-mounted screen, it is determined whether the icon displayed on the vehicle-mounted screen is displayed normally. However, in the prior art, in order to improve the visual effect, the pixel values corresponding to the displayed content are usually adjusted on vehicle-mounted screens, and the actual CRC value corresponding to the icon displayed on the vehicle-mounted screen usually also changes with the pixel values, which will affect the efficiency and accuracy of display verification. For example, when an icon displayed on any vehicle-mounted screen is actually displayed normally, it may be determined that the CRC verification fails due to a large error between the actual CRC value determined after pixel value adjustment and the CRC reference value, and it is misjudged that the icon displayed on the vehicle-mounted screen is abnormally displayed. Summary of the Invention

[0003] In view of this, the present disclosure provides a technical solution for a display verification method, a bridging chip, a display device, and an electronic device.

[0004] According to an aspect of the present disclosure, a display verification method is provided, including: determining a target detection area corresponding to a to-be-displayed graphic according to initial graphic data corresponding to the to-be-displayed graphic; determining a reference chromaticity value corresponding to the to-be-displayed graphic according to the initial graphic data and the target detection area; determining a real-time chromaticity value corresponding to the to-be-displayed graphic according to real-time graphic data corresponding to the to-be-displayed graphic and the target detection area, where the real-time graphic data is obtained after optimizing the display of the to-be-displayed graphic, and the real-time chromaticity value and the reference chromaticity value are mapped in the same chromaticity space; performing display verification according to the reference chromaticity value and the real-time chromaticity value to determine a verification result corresponding to the real-time graphic data.

[0005] In a possible implementation, the target detection region includes the graphic edge pixels in the graphic to be displayed.

[0006] In a possible implementation, the determining the reference chromaticity value corresponding to the graphic to be displayed according to the initial graphic data and the target detection region includes: determining the initial pixel value corresponding to the target detection region according to the initial graphic data; mapping the initial pixel value to a preset chromaticity space to determine the reference chromaticity value.

[0007] In a possible implementation, the determining the real-time chromaticity value corresponding to the graphic to be displayed according to the real-time graphic data corresponding to the graphic to be displayed and the target detection region includes: determining the real-time pixel value corresponding to the target detection region according to the real-time graphic data corresponding to the graphic to be displayed; mapping the real-time pixel value to a preset chromaticity space to determine the real-time chromaticity value.

[0008] In a possible implementation, the performing display verification according to the reference chromaticity value and the real-time chromaticity value to determine the verification result corresponding to the real-time graphic data includes: determining the chromaticity deviation value according to the reference chromaticity value and the real-time chromaticity value; when the chromaticity deviation value satisfies the preset chromaticity threshold range, determining that the verification result corresponding to the real-time graphic data is accurate display; when the chromaticity deviation value does not satisfy the chromaticity threshold range, determining that the verification result corresponding to the real-time graphic data is display failure.

[0009] In a possible implementation, when the graphic to be displayed is an in-vehicle screen display icon, the method further includes: sending a safety fault detection signal when the verification result corresponding to the real-time graphic data is display failure, where the safety fault detection signal is used to indicate a fault check on the display device corresponding to the real-time graphic data.

[0010] According to another aspect of the present disclosure, a bridging chip is provided, and the bridging chip is used to implement the above display verification method.

[0011] According to another aspect of the present disclosure, a display device is provided, including a plurality of display units and at least one of the above bridging chips.

[0012] In a possible implementation, the display unit includes a display panel, and the display panel includes at least one of a liquid crystal display panel, a micro light-emitting diode display panel, a light-emitting diode display panel, a mini light-emitting diode display panel, a quantum dot light-emitting diode display panel, an organic light-emitting diode display panel, a cathode ray tube display panel, a digital light processing display panel, a field emission display panel, a plasma display panel, an electrophoretic display panel, an electro-wetting display panel, and a small-pitch display panel.

[0013] According to another aspect of the present disclosure, an electronic device is provided, including the above-mentioned display device.

[0014] In the embodiments of the present disclosure, according to the initial graphic data corresponding to the graphic to be displayed, the target detection area corresponding to the graphic to be displayed can be determined as the sensitive area of the display device, and display verification can be performed specifically, thereby improving the accuracy of display verification; and since it is not necessary to process the entire display screen of the display device, the efficiency of display verification can also be improved. According to the initial graphic data and the target detection area, the reference chromaticity value corresponding to the graphic to be displayed can be determined; according to the real-time graphic data obtained after optimizing the display of the graphic to be displayed and the target detection area, the real-time chromaticity value corresponding to the graphic to be displayed and mapped in the same chromaticity space as the reference chromaticity value can be determined; according to the reference chromaticity value and the real-time chromaticity value for display verification, the verification result corresponding to the real-time graphic data can be determined, thereby quantitatively analyzing the difference between the real-time graphic data and the graphic to be displayed based on the chromaticity value, and being able to reduce the influence of visual effect optimization on display verification while ensuring a high visual effect of the real-time graphic data, and improving the accuracy and reliability of display verification.

[0015] According to the following detailed description of the exemplary embodiments with reference to the accompanying drawings, other features and aspects of the present disclosure will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings included in the specification and constituting a part of the specification, together with the specification, illustrate the exemplary embodiments, features, and aspects of the present disclosure and are used to explain the principles of the present disclosure.

[0017] Figure 1 A flowchart showing a display verification method according to an embodiment of the present disclosure.

[0018] Figure 2 An application schematic diagram showing a display verification method according to an embodiment of the present disclosure.

[0019] Figure 3 A schematic diagram showing a target detection area according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. Like reference numerals in the drawings denote functionally identical or similar elements. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0021] In the description of the present disclosure, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present disclosure.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present disclosure, "a plurality" means two or more unless otherwise specifically defined.

[0023] In the present disclosure, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0024] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the term "at least one" in this article means any one of a plurality or any combination of at least two of a plurality. For example, including at least one of A, B, and C can represent including any one or more elements selected from the set composed of A, B, and C.

[0025] In vehicle-mounted screens such as the instrument screen or the center control screen of the in-vehicle system, relevant information on vehicle functional safety needs to be displayed (for example, oil temperature, fuel level, tire pressure, steering icon, battery power, signal strength, etc.). When a display failure occurs, it may cause the user to be unable to confirm the safety of vehicle functions. Therefore, it is necessary to perform a display check on the vehicle-mounted screen. In the prior art, in order to check whether the displayed information is normal, for the display screen of the in-vehicle system, cyclic redundancy check (CRC) is usually performed on the icon area of the on-screen display (OSD) method. By comparing the CRC reference value pre-stored in the flash memory of the in-vehicle system with the actual CRC value corresponding to the icon displayed on the vehicle-mounted screen, it is determined whether the icon displayed on the vehicle-mounted screen is displayed normally.

[0026] However, in order to improve the visual effect, the chips used in vehicle-mounted screens in the prior art usually include at least one image processing module. For example, a processing module for implementing color dither or a processing module for implementing gamma correction of colors, etc., adjusts the pixel values corresponding to the displayed content. After the adjustment, the actual CRC value corresponding to the icon displayed on the vehicle-mounted screen usually changes, which affects the efficiency and accuracy of the display check. It may occur that when any icon displayed on the vehicle-mounted screen is actually displayed normally, it is misjudged that the icon displayed on the vehicle-mounted screen is displayed abnormally.

[0027] In view of this, the embodiments of the present disclosure provide a display check method, which can perform chromaticity comparison using the target detection area corresponding to the graphic to be displayed to verify whether the graphic is displayed normally, avoiding the influence of display effect optimization on the display check, and having high accuracy and reliability. The display check method provided by the present disclosure is introduced in detail below.

[0028] Figure 1 The flowchart of a display check method according to an embodiment of the present disclosure is shown. As Figure 1 shown, the display check method can be executed by an electronic device such as a terminal device or a server, and the terminal device can be a vehicle-mounted device. As Figure 1 shown, the display check method includes:

[0029] In step S101, according to the initial graphic data corresponding to the graphic to be displayed, the target detection area corresponding to the graphic to be displayed is determined.

[0030] The graphic to be displayed here can represent an image that needs to be displayed on any display device, and its specific form can be flexibly set according to actual usage requirements. For example, it can include OSD icons, text characters, etc., and the embodiments of the present disclosure do not make specific limitations.

[0031] The initial graphic data corresponding to the graphic to be displayed can represent the data required to control the display device to display the graphic to be displayed, and its specific form can be flexibly set according to actual usage requirements. The present disclosure does not make specific limitations thereto. For the specific method of obtaining the initial graphic data, reference can be made to the implementation manners in the related art, and the present disclosure does not make specific limitations thereto.

[0032] Figure 2 FIG. shows an application schematic diagram of a display verification method according to an embodiment of the present disclosure. As Figure 2 shown, when the display device is an in-vehicle screen corresponding to a vehicle-mounted system and the graphic to be displayed is an OSD icon, the pre-stage chip of the in-vehicle screen transmits the image data stream signal of the vehicle-mounted system to the bridging chip, and the bridging chip receives the data stream corresponding to the OSD icon, that is, the initial graphic data, through the receiving end (RX end) of the Low-Voltage Differential Signaling (LVDS).

[0033] The target detection area corresponding to the graphic to be displayed may include some pixel points in the graphic to be displayed, as well as some pixel points outside the graphic to be displayed, etc. The target detection area corresponding to the graphic to be displayed can be used as a sensitive area for the display device, so as to perform targeted display verification subsequently. The specific content of the target detection area can be flexibly set according to actual usage requirements, depending on the specific form of the graphic to be displayed and the application scenario of the display device. The present disclosure does not make specific limitations thereto.

[0034] In an example, the graphic to be displayed is an image including a preset target object. At this time, the target detection area can be set to include the pixels corresponding to the contour of the target object.

[0035] In a possible implementation manner, the target detection area includes: the graphic edge pixels in the graphic to be displayed.

[0036] The graphic edge pixels here can reflect the outer contour of the graphic to be displayed and the contour of the objects included inside the graphic to be displayed, and are the pixels of the sensitive area that determine the correctness and integrity of the graphic to be displayed. For example, the graphic edge pixels can include the pixels of the outer edge of the graphic to be displayed, and can also include the pixels of the edge parts of objects such as characters and graphics inside the graphic to be displayed. For a linear object, its edge is the object itself, and the graphic edge pixels can be taken from some pixels on the object. It can be flexibly set according to actual usage requirements, depending on the specific form of the graphic to be displayed. The present disclosure does not make specific limitations thereto.

[0037] Figure 3 FIG. shows a schematic diagram of a target detection area according to an embodiment of the present disclosure. As Figure 3As shown in (a) therein, the graphic to be displayed is a battery icon in the OSD icon, which is used to indicate the real-time working state of the vehicle battery. As Figure 3 As shown in (b) therein, the dotted line represents the outer edge of the battery icon and the edges of the internal "+" and "-" characters, and the dots represent pixels; the target detection area includes the outer edge pixels of the battery icon and some edge pixels inside the "+" and "-" characters of the battery icon. The specific method of pixel sampling here can be flexibly set according to actual usage requirements. For example, pixels can be selected along the outer edge of the battery icon and the edges inside the "+" and "-" characters of the battery icon according to a preset sampling step to determine the target detection area, etc. The present disclosure does not make specific limitations on this.

[0038] By using the target detection area corresponding to the graphic to be displayed as the sensitive area of the display device, display verification can be performed specifically, thereby improving the accuracy of display verification; and since it is not necessary to process the entire display screen of the display device, the efficiency of display verification can also be improved.

[0039] In step S102, according to the initial graphic data and the target detection area, determine the reference chromaticity value corresponding to the graphic to be displayed.

[0040] The reference chromaticity value can represent the chromaticity of the target detection area corresponding to the graphic to be displayed when the graphic to be displayed is displayed based on the unprocessed initial graphic data, so as to be used as the regional feature corresponding to the graphic to be displayed, which is convenient for quantitatively comparing the difference between the graphic to be displayed and the real-time graphic data actually displayed. Among them, the specific form of the reference chromaticity value can be flexibly set according to actual usage requirements, and the present disclosure does not make specific limitations on this. The specific method of determining the reference chromaticity value can be flexibly set according to actual usage requirements, and the present disclosure does not make specific limitations on this.

[0041] In an example, mapping processing can be performed on all color data included in the initial graphic data, converted to any chromaticity space, and the corresponding chromaticity data can be obtained; furthermore, according to the position information of the target detection area, the chromaticity value corresponding to each pixel in the target detection area can be determined as the reference chromaticity value corresponding to the graphic to be displayed.

[0042] The process of determining the reference chromaticity value corresponding to the graphic to be displayed according to the initial graphic data and the target detection area will be described in detail later in combination with possible implementation manners of the present disclosure, and will not be elaborated here.

[0043] In step S103, according to the real-time graphic data corresponding to the graphic to be displayed and the target detection area, determine the real-time chromaticity value corresponding to the graphic to be displayed, where the real-time graphic data is obtained after optimizing the display of the graphic to be displayed, and the real-time chromaticity value and the reference chromaticity value are mapped in the same chromaticity space.

[0044] Generally, in order to improve the visual effect of a display device, the pixel values of a to-be-displayed graphic can be adjusted based on initial graphic data to optimize the display of the to-be-displayed graphic and obtain real-time graphic data corresponding to the to-be-displayed graphic. The specific method of adjusting the pixel values of the to-be-displayed graphic to obtain real-time graphic data can refer to the implementation manners in related technologies, and the present disclosure does not make specific limitations thereon.

[0045] Taking the above display device as the in-vehicle screen corresponding to a vehicle-mounted system and the to-be-displayed graphic as an OSD icon as an example, as Figure 2 shown, the bridging chip of the in-vehicle screen modifies the pixel values of the OSD icon in the initial graphic data through the graphic processing module included therein, and sends the adjusted graphic data (i.e., real-time graphic data) to a subsequent-stage chip through the output end (TX end) of LVDS. The subsequent-stage chip controls the display device to display a real-time display result corresponding to the to-be-displayed graphic according to the adjusted graphic data.

[0046] According to the real-time graphic data and a target detection region, a real-time chromaticity value corresponding to the to-be-displayed graphic can be determined. The real-time chromaticity value can represent the chromaticity of the target detection region in the real-time graphic data. The specific form of the real-time chromaticity value can be flexibly set according to actual usage requirements, and the present disclosure does not make specific limitations thereon. It should be noted that, in order to ensure the accuracy and reliability of chromaticity comparison, the real-time chromaticity value and a reference chromaticity value should be in the same chromaticity space.

[0047] The specific method of determining the real-time chromaticity value can be flexibly set according to actual usage requirements, and the present disclosure does not make specific limitations thereon.

[0048] In an example, mapping processing can be performed on all color data included in the real-time graphic data, converted to any chromaticity space, to obtain corresponding chromaticity data; and then, according to the position information of the target detection region, the chromaticity value corresponding to each pixel in the target detection region can be determined as the real-time chromaticity value corresponding to the to-be-displayed graphic.

[0049] The process of determining the real-time chromaticity value corresponding to the to-be-displayed graphic according to the real-time graphic data corresponding to the to-be-displayed graphic and the target detection region will be described in detail later in combination with possible implementation manners of the present disclosure, and will not be elaborated herein.

[0050] In step S104, display verification is performed according to the reference chromaticity value and the real-time chromaticity value to determine a verification result corresponding to the real-time graphic data.

[0051] By comparing the reference chromaticity value with the real-time chromaticity value, the color difference between the to-be-displayed graphic and the actual real-time graphic data can be quantified, the influence of pixel value adjustment can be reduced, and a verification result with high accuracy and reliability can be determined. Among them, the verification result can indicate whether there is a display fault in the real-time graphic data relative to the to-be-displayed graphic, and its specific form can be flexibly set according to actual usage requirements, and the present disclosure does not make specific limitations thereon.

[0052] The process of performing display verification based on the reference chromaticity value and the real-time chromaticity value to determine the verification result corresponding to the real-time graphic data will be described in detail later in combination with possible implementation manners of the present disclosure, and will not be elaborated here.

[0053] In an embodiment of the present disclosure, according to the initial graphic data corresponding to the to-be-displayed graphic, a target detection area corresponding to the to-be-displayed graphic can be determined as a sensitive area of the display device, and display verification can be performed specifically, so that the accuracy of display verification can be improved; and since it is not necessary to process the entire display screen of the display device, the efficiency of display verification can also be improved. According to the initial graphic data and the target detection area, the reference chromaticity value corresponding to the to-be-displayed graphic can be determined; according to the real-time graphic data obtained after performing display optimization on the to-be-displayed graphic and the target detection area, the real-time chromaticity value corresponding to the to-be-displayed graphic and mapped in the same chromaticity space as the reference chromaticity value can be determined; by performing display verification based on the reference chromaticity value and the real-time chromaticity value, the verification result corresponding to the real-time graphic data can be determined, so as to quantitatively analyze the difference between the real-time graphic data and the to-be-displayed graphic based on the chromaticity value, and be able to reduce the influence of visual effect optimization on display verification while ensuring a high visual effect of the real-time graphic data, and improve the accuracy and reliability of display verification.

[0054] In a possible implementation manner, determining the reference chromaticity value corresponding to the to-be-displayed graphic according to the initial graphic data and the target detection area includes: determining the initial pixel value corresponding to the target detection area according to the initial graphic data; mapping the initial pixel value to a preset chromaticity space to determine the reference chromaticity value.

[0055] Specifically, according to the initial graphic data, the initial pixel value corresponding to the target detection area can be determined, and the initial pixel value is mapped to a preset chromaticity space to determine the reference chromaticity value. Among them, the specific type of the preset chromaticity space can include HSV / HSL chromaticity space, CIE Lab chromaticity space, YUV / YCbCr chromaticity space, CIE XYZ chromaticity space, etc., and can be flexibly set according to the specific adjustment method for the initial graphic data, and the present disclosure does not make specific limitations thereon.

[0056] In one example, the adjustment of the initial graphic data includes gamma correction, which specifically performs non-linear adjustment on the brightness of the graphic to be displayed. Therefore, a preset chromaticity space can be set as a chromaticity space where the luminance channel and the chrominance channel are separated, such as the YUV / YCbCr chromaticity space or the CIE Lab chromaticity space, so as to reduce the influence of gamma correction on chrominance and ensure the accuracy and reliability of display verification.

[0057] For the specific method of mapping the initial pixel values to the preset chromaticity space, reference can be made to the implementation methods in related technologies, which depends on the specific type of the preset chromaticity space. The present disclosure does not make specific limitations thereto.

[0058] In one example, the initial pixel values include three channels of red (R), green (G), and blue (B), and the value range of each channel is within (0, 255); the preset chromaticity space is the YUV / YCbCr chromaticity space.

[0059] The specific method of mapping the initial pixel values to the YUV / YCbCr chromaticity space can be expressed as formula (1):

[0060]

[0061] Among them, Y represents the separated luminance; both U / Cb and V / Cr represent chrominance; R represents the red channel value of the initial pixel value; G represents the green channel value of the initial pixel value; B represents the blue channel value of the initial pixel value.

[0062] In one possible implementation manner, according to the real-time graphic data corresponding to the graphic to be displayed and the target detection area, determining the real-time chrominance value corresponding to the graphic to be displayed includes: determining the real-time pixel values corresponding to the target detection area according to the real-time graphic data corresponding to the graphic to be displayed; mapping the real-time pixel values to the preset chromaticity space to determine the real-time chrominance value.

[0063] According to the real-time graphic data corresponding to the graphic to be displayed, the real-time pixel values corresponding to the target detection area can be determined, and then the real-time pixel values corresponding to the target detection area are also mapped to the preset chromaticity space, so as to determine the real-time chrominance value. Among them, for the specific method of determining the real-time pixel values corresponding to the target detection area according to the real-time graphic data, it can be flexibly set according to actual usage requirements, and the present disclosure does not make specific limitations thereto.

[0064] Taking the above display device as the in-vehicle screen corresponding to the vehicle-mounted system and the graphic to be displayed as the OSD icon as an example, the bridging chip of the in-vehicle screen can directly determine the corresponding real-time pixel values in the real-time graphic data according to the position information of the target detection area through the microcontroller unit (MCU) included therein.

[0065] Taking the in-vehicle screen corresponding to the in-vehicle system of the above display device and the graphic to be displayed as an OSD icon as an example, the bridging chip of the in-vehicle screen can also directly read the adjusted graphic data from the image processing module through the MCU included therein and determine the real-time pixel value.

[0066] In a possible implementation manner, display verification is performed according to the reference chromaticity value and the real-time chromaticity value to determine the verification result corresponding to the real-time graphic data, including: determining the chromaticity deviation value according to the reference chromaticity value and the real-time chromaticity value; when the chromaticity deviation value satisfies the preset chromaticity threshold range, determining that the verification result corresponding to the real-time graphic data is accurate display; when the chromaticity deviation value does not satisfy the chromaticity threshold range, determining that the verification result corresponding to the real-time graphic data is a display failure.

[0067] Specifically, by comparing the reference chromaticity value and the real-time chromaticity value, the chromaticity deviation value of the real-time graphic data relative to the graphic to be displayed can be determined, so as to quantitatively reflect the difference between the real-time graphic data and the graphic to be displayed, facilitating the judgment of whether a display failure occurs. Among them, the specific method of comparing the reference chromaticity value and the real-time chromaticity value to determine the chromaticity deviation value, as well as the specific form of the chromaticity deviation value, can be flexibly set according to actual usage requirements, and the present disclosure does not make specific limitations thereon.

[0068] In an example, the reference chromaticity value and the real-time chromaticity value corresponding to each pixel in the target detection area can be compared one by one to determine the chromaticity difference corresponding to each pixel, and then statistical indexes such as the mean square error (MSE) and the mean absolute error (MAE) can be calculated according to the chromaticity difference corresponding to each pixel as the chromaticity deviation value of the real-time graphic data relative to the graphic to be displayed.

[0069] In an example, statistical indexes such as the average chromaticity value, the mean deviation, or the standard deviation can be calculated according to the reference chromaticity value corresponding to each pixel in the target detection area as the overall reference chromaticity of the target detection area; similarly, the same statistical indexes can be calculated according to the real-time chromaticity value corresponding to each pixel in the target detection area as the overall real-time chromaticity of the target detection area; and then the chromaticity deviation value of the real-time graphic data relative to the graphic to be displayed can be determined through the overall reference chromaticity and the overall real-time chromaticity of the target detection area.

[0070] In an example, a reference chromaticity histogram corresponding to the target detection area can be drawn according to the reference chromaticity value corresponding to each pixel in the target detection area; a real-time chromaticity histogram corresponding to the target detection area can be drawn according to the real-time chromaticity value corresponding to each pixel; and then similarity indexes such as the Bhattacharyya distance can be calculated according to the reference chromaticity histogram and the real-time chromaticity histogram as the chromaticity deviation value of the real-time graphic data relative to the graphic to be displayed.

[0071] When the chromaticity deviation value meets the preset chromaticity threshold range, it can be determined that the verification result corresponding to the real-time graphic data is accurate display; when the chromaticity deviation value does not meet the chromaticity threshold range, it can be determined that the verification result corresponding to the real-time graphic data is display failure. Among them, the specific value of the chromaticity threshold range is related to the specific form of the chromaticity deviation value and can be flexibly set according to actual usage requirements. The present disclosure does not make specific limitations in this regard.

[0072] Taking the above display device as the in-vehicle screen corresponding to the vehicle-mounted system and the graphic to be displayed as the OSD icon as an example, as Figure 2 shown, the bridging chip of the in-vehicle screen further includes a chromaticity comparison module and a register. After the bridging chip determines the reference chromaticity value, it pre-stores the reference chromaticity value in the register. When performing display verification, the chromaticity comparison module reads the pre-stored reference chromaticity value from the register and compares it with the real-time chromaticity value to determine the chromaticity deviation value; and then combines the chromaticity threshold range to determine the verification result corresponding to the real-time graphic data.

[0073] In a possible implementation manner, when the graphic to be displayed is an in-vehicle screen display icon, the method further includes: when the verification result corresponding to the real-time graphic data is display failure, sending a safety fault detection signal, where the safety fault detection signal is used to indicate a fault check on the display device corresponding to the real-time graphic data.

[0074] When the graphic to be displayed is an in-vehicle screen display icon, in order to ensure that the vehicle-mounted system can promptly respond to display failures and perform corresponding fault handling, a safety fault detection signal can be sent when the verification result corresponding to the real-time graphic data is display failure, so as to instruct the vehicle-mounted system and the display device (usually the in-vehicle screen) to perform a fault check, thereby reducing the probability that the user cannot correctly obtain vehicle and driving safety information due to display failures and improving driving safety.

[0075] Taking the above display device as the in-vehicle screen corresponding to the vehicle-mounted system and the graphic to be displayed as the OSD icon as an example, as Figure 2 shown, when the bridging chip of the in-vehicle screen determines that the verification result corresponding to the real-time graphic data is display failure, the bridging chip will send a safety fault detection signal through the chip fault detection pin.

[0076] In the embodiments of the present disclosure, according to the initial graphic data corresponding to the graphic to be displayed, the target detection area corresponding to the graphic to be displayed can be determined as the sensitive area of the display device, and display verification can be performed specifically, thereby improving the accuracy of display verification; moreover, since it is not necessary to process the entire display screen of the display device, the efficiency of display verification can also be improved. According to the initial graphic data and the target detection area, the reference chromaticity value corresponding to the graphic to be displayed can be determined; according to the real-time graphic data obtained after optimizing the display of the graphic to be displayed and the target detection area, the real-time chromaticity value corresponding to the graphic to be displayed and mapped in the same chromaticity space as the reference chromaticity value can be determined; according to the reference chromaticity value and the real-time chromaticity value, display verification can be performed to determine the verification result corresponding to the real-time graphic data, thereby quantitatively analyzing the difference between the real-time graphic data and the graphic to be displayed based on the chromaticity value, being able to reduce the influence of visual effect optimization on display verification while ensuring a relatively high visual effect of the real-time graphic data, and improving the accuracy and reliability of display verification. Further, when the display device is a vehicle-mounted screen and the graphic to be displayed is an OSD icon, a safety fault detection signal can be sent in a timely manner according to the specific situation of the verification result to instruct the vehicle-mounted system and perform a fault check on the display device, thereby reducing the probability that the user cannot correctly obtain vehicle and driving safety information due to a display fault and improving driving safety.

[0077] It can be understood that, for the above-mentioned method embodiments mentioned in the present disclosure, without violating the principle logic, they can all be combined with each other to form a combined embodiment. Due to space limitations, the present disclosure will not elaborate further. Those skilled in the art can understand that in the above-mentioned methods of the specific implementation manner, the specific execution order of each step should be determined according to its function and possible internal logic.

[0078] In addition, the present disclosure also provides a bridging chip, a display device, and an electronic device, all of which can be used to implement any one of the display verification methods provided by the present disclosure. The corresponding technical solutions and descriptions can be referred to the corresponding records in the method part and will not be elaborated further.

[0079] The embodiments of the present disclosure also propose a bridging chip, and the bridging chip is used to implement the above-mentioned display verification method.

[0080] The specific form and structure of the bridging chip can be flexibly set according to actual usage requirements. For example, reference can be made to the bridging chip as shown in Figure 2 etc. The present disclosure does not make specific limitations on this.

[0081] The embodiments of the present disclosure also propose a display device, including a plurality of display units and at least one of the above-mentioned bridging chips.

[0082] In a possible implementation, the display unit includes a display panel, and the display panel includes at least one of a liquid crystal display panel, a micro light-emitting diode display panel, a light-emitting diode display panel, a mini light-emitting diode display panel, a quantum dot light-emitting diode display panel, an organic light-emitting diode display panel, a cathode ray tube display panel, a digital light processing display panel, a field emission display panel, a plasma display panel, an electrophoretic display panel, an electro-wetting display panel, and a small pitch display panel.

[0083] The embodiments of the present disclosure further provide an electronic device, including the above-mentioned display device.

[0084] Exemplarily, the electronic device in this embodiment includes, but is not limited to, a desktop computer, a television, a mobile device with a large screen such as a mobile phone, a tablet computer, and other common electronic devices that require multiple chip-level cascaded connections to achieve driving.

[0085] Exemplarily, the electronic device may also be a user equipment (UE), a mobile device, a user terminal, a terminal, a handheld device, a computing device, or a vehicle-mounted device, etc. Exemplarily, some examples of terminals are: a display, a smart phone or a portable device, a mobile phone, a tablet computer, a laptop computer, a palm computer, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a wireless terminal in a vehicle-to-everything network, etc. For example, the server may be a local server or a cloud server.

[0086] The above description is only an exemplary implementation manner of the present invention, rather than used to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

[0087] The special term "exemplary" here means "serving as an example, an embodiment, or illustrative". Any embodiment described as "exemplary" here does not have to be construed as superior to or better than other embodiments.

[0088] It should be noted that in this text, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0089] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagram may represent a module, a segment of a program, or a part of an instruction, and the module, segment of a program, or part of an instruction contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions noted in the blocks may occur in a different order than noted in the accompanying drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

[0090] The embodiments of the present disclosure have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of technologies in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. A display verification method, characterized in that, Including: Determine a target detection region corresponding to the to-be-displayed graphic according to initial graphic data corresponding to the to-be-displayed graphic, where the target detection region includes: graphic edge pixels in the to-be-displayed graphic, the graphic edge pixels being used to reflect the outer contour of the to-be-displayed graphic, and the contours of objects included inside the to-be-displayed graphic; Determine a reference chromaticity value corresponding to the to-be-displayed graphic according to the initial graphic data and the target detection region; Determine a real-time chromaticity value corresponding to the to-be-displayed graphic according to real-time graphic data corresponding to the to-be-displayed graphic and the target detection region, where the real-time graphic data is obtained after display optimization of the to-be-displayed graphic, and the real-time chromaticity value and the reference chromaticity value are mapped in the same chromaticity space; Perform display verification according to the reference chromaticity value and the real-time chromaticity value to determine a verification result corresponding to the real-time graphic data; Among them, the performing display verification according to the reference chromaticity value and the real-time chromaticity value to determine a verification result corresponding to the real-time graphic data includes: Determine a chromaticity deviation value according to the reference chromaticity value and the real-time chromaticity value; When the chromaticity deviation value satisfies a preset chromaticity threshold range, determine that the verification result corresponding to the real-time graphic data is accurate display; When the chromaticity deviation value does not satisfy the chromaticity threshold range, determine that the verification result corresponding to the real-time graphic data is a display fault.

2. The method according to claim 1, characterized in that, The determining a reference chromaticity value corresponding to the to-be-displayed graphic according to the initial graphic data and the target detection region includes: Determine initial pixel values corresponding to the target detection region according to the initial graphic data; Map the initial pixel values to a preset chromaticity space to determine the reference chromaticity value.

3. The method according to claim 1, wherein The determining a real-time chromaticity value corresponding to the to-be-displayed graphic according to real-time graphic data corresponding to the to-be-displayed graphic and the target detection region includes: Determine real-time pixel values corresponding to the target detection region according to the real-time graphic data corresponding to the to-be-displayed graphic; Map the real-time pixel values to a preset chromaticity space to determine the real-time chromaticity value.

4. The method according to claim 1, characterized in that, When the to-be-displayed graphic is an icon displayed on a vehicle-mounted screen, the method further includes: When the verification result corresponding to the real-time graphic data is a display fault, send a safety fault detection signal, where the safety fault detection signal is used to indicate a fault check on a display device corresponding to the real-time graphic data.

5. A display device, characterized in that, Including a plurality of display units and at least one bridging chip, the bridging chip being used to implement the display verification method according to any one of claims 1 to 4.

6. The display device according to claim 5, wherein The display unit includes a display panel, and the display panel includes at least one of a liquid crystal display panel, a micro light-emitting diode display panel, a light-emitting diode display panel, a mini light-emitting diode display panel, a quantum dot light-emitting diode display panel, an organic light-emitting diode display panel, a cathode ray tube display panel, a digital light processing display panel, a field emission display panel, a plasma display panel, an electrophoretic display panel, an electro-wetting display panel, and a small pitch display panel.

7. An electronic device, characterized in that, Comprising the display device according to claim 5 or 6.

Images