Screen body light efficiency detection method, device, system and equipment and storage medium

Abstract

The invention relates to a screen body light efficiency detection method, device, system and equipment and a storage medium, and the method comprises the steps: obtaining a plurality of test backlight values, and transmitting a backlight control signal to a to-be-tested device based on the test backlight values one by one, so as to enable the to-be-tested device to adjust the backlight value of a screen body to a corresponding test backlight value based on the backlight control signal, thereby achieving the detection of the light efficiency of the screen body. And detecting the screen body light efficiency of the screen body under the test backlight value, and finally determining the target screen body light efficiency of the to-be-tested equipment according to the detected multiple screen body light efficiencies. By automatically detecting the screen body light efficiency under different test backlight values, the optimal screen body light efficiency can be quickly and accurately identified, the backlight value and the current value corresponding to the optimal screen body light efficiency are further obtained, the stability of the brightness and the color saturation of the screen body is ensured, and the user experience feeling is improved. Besides, the light efficiency of the screen body can be detected without manual operation in the mode, the influence of subjective factors is avoided, and the method is suitable for diversified screen body detection.

Description

Technical Field

[0001] This application relates to the field of screen detection, and in particular, to a method, device, system, equipment, and storage medium for detecting the light efficiency of a screen. Background Art

[0002] With the increasing emphasis on environmental protection and energy conservation by the country, the types of screens are also continuously increasing and are widely used in people's lives. In such a general environment, quickly and accurately detecting the optimal luminous efficiency of a screen has become an important requirement in the industry. The existing method for detecting the luminous efficiency of a screen is that designers roughly check the luminous efficiency of the screen based on experience and then determine the current value that meets certain conditions.

[0003] However, this method requires designers to manually check the screen, consuming a large amount of time and energy. Moreover, the judgment of designers is easily affected by subjective factors, and it is impossible to quickly and accurately identify the optimal luminous efficiency of the screen, resulting in the provided current not being the optimal value, further leading to unstable picture color saturation and brightness, and thus affecting the user viewing experience. In addition, the traditional designer inspection method is difficult to accurately detect according to the characteristics of each screen and cannot adapt to the diverse screen detections. Summary of the Invention

[0004] This application provides a method, device, system, equipment, and storage medium for detecting the light efficiency of a screen to solve the technical problems that the existing method for detecting the light efficiency of a screen requires designers to manually check the screen, cannot quickly and accurately identify the optimal luminous efficiency of the screen, is easily affected by subjective factors, and cannot adapt to the diverse screen detections.

[0005] In a first aspect, this application provides a method for detecting the light efficiency of a screen, and the method includes:

[0006] Obtain a plurality of test backlight values;

[0007] Based on each of the test backlight values, send a backlight control signal to the device under test, so that the device under test adjusts the backlight of its screen to the corresponding test backlight value based on the backlight control signal, and detect the light efficiency of the screen at the test backlight value;

[0008] Determine the target light efficiency of the device under test according to the detected light efficiencies of the plurality of screens.

[0009] In a possible implementation manner, the obtaining a plurality of test backlight values includes:

[0010] Starting from a preset test backlight value, stepwise adjust the current test backlight value according to a set step value until the adjusted test backlight value exceeds the preset backlight value range and then stop the adjustment;

[0011] Determine the preset test backlight value and the test backlight values obtained during the adjustment period that do not exceed the preset backlight value range as the finally obtained test backlight values.

[0012] In a possible implementation, the detecting the light efficiency of the screen body at the test backlight value includes:

[0013] Controlling a color analyzer to collect the brightness parameters of the screen body at the test backlight value, and controlling a power meter to collect the power data of the screen body at the test backlight value;

[0014] Determine the light emission efficiency of the screen body at the test backlight value according to the brightness parameters and the power data.

[0015] In a possible implementation, the controlling the color analyzer to collect the brightness parameters of the screen body at the test backlight value includes:

[0016] Controlling the probe of the color analyzer to traverse the center point positions of each window of the screen body to collect the brightness parameters of the center point positions of each window, and obtaining a plurality of brightness parameters;

[0017] Determine the average value of the brightness parameters of the plurality of brightness parameters, and determine the average value of the brightness parameters as the brightness parameter of the screen body at the test backlight value.

[0018] In a possible implementation, the determining the target screen body light efficiency of the device under test according to the detected multiple screen body light efficiencies includes:

[0019] Determine the maximum value among the detected multiple screen body light efficiencies as the target screen body light efficiency of the device under test.

[0020] In a possible implementation, the center point positions of each window are obtained by the following method:

[0021] Control the device under test to display a preset image, and the preset image includes a plurality of rectangular frames arranged in rows and columns;

[0022] Identify the boundary contours of the plurality of rectangular frames in the display interface of the device under test, and divide the screen body of the device under test into a plurality of windows according to the boundary contours of the plurality of rectangular frames;

[0023] Determine the center point position information of each window.

[0024] In a second aspect, the present application provides a device for detecting the light efficiency of a screen body, and the device includes:

[0025] A backlight value acquisition module, configured to acquire a plurality of test backlight values;

[0026] A light efficiency detection module, which is configured to send a backlight control signal to a device under test one by one based on the test backlight value, so that the device under test adjusts the backlight of its screen to the corresponding test backlight value based on the backlight control signal, and detects the screen light efficiency of the screen at the test backlight value;

[0027] A target light efficiency determination module, which is configured to determine the target screen light efficiency of the device under test according to the detected multiple screen light efficiencies.

[0028] In a possible implementation manner, the backlight value acquisition module is specifically configured to:

[0029] Start from a preset test backlight value, perform a step adjustment on the current test backlight value according to a set step value until the adjusted test backlight value exceeds the preset backlight value range and then stop the adjustment;

[0030] Determine the preset test backlight value and the test backlight values obtained during the adjustment that do not exceed the preset backlight value range as the finally obtained test backlight values.

[0031] In a possible implementation manner, the light efficiency detection module includes:

[0032] A data acquisition unit, which is configured to control a color analyzer to collect the brightness parameters of the screen at the test backlight value, and control a power meter to collect the power data of the screen at the test backlight value;

[0033] An efficiency determination unit, which is configured to determine the screen luminous efficiency of the screen at the test backlight value according to the brightness parameters and the power data.

[0034] In a possible implementation manner, the data acquisition unit includes:

[0035] A brightness acquisition subunit, which is configured to control the probe of a color analyzer to traverse the center point positions of each window of the screen to collect the brightness parameters of the center point positions of each window, and obtain a plurality of brightness parameters;

[0036] A brightness parameter determination subunit, which is configured to determine the average value of the brightness parameters of the plurality of brightness parameters, and determine the average value of the brightness parameters as the brightness parameter of the screen at the test backlight value.

[0037] In a possible implementation manner, the target light efficiency determination module is specifically configured to:

[0038] Determine the maximum value among the detected multiple screen light efficiencies as the target screen light efficiency of the device under test.

[0039] In a possible implementation, the center point positions of the respective windows of the luminance acquisition subunit are obtained by the following method:

[0040] Control the device under test to display a preset image, where the preset image includes a plurality of rectangular frames arranged in rows and columns;

[0041] Identify the boundary contours of the plurality of rectangular frames in the display interface of the device under test, and divide the screen body of the device under test into a plurality of windows according to the boundary contours of the plurality of rectangular frames;

[0042] Determine the center point position information of each of the windows.

[0043] In a third aspect, the present application provides a detection system for the light efficiency of a screen body, including a processor, a device under test, a color analyzer, and a power meter:

[0044] The processor determines the center point position information of each window based on a test signal, and obtains a plurality of test backlight values; and sequentially sends backlight control signals to the device under test based on the test backlight values;

[0045] The device under test adjusts the backlight value of its screen body to the corresponding test backlight value based on the backlight control signal;

[0046] The color analyzer detects the luminance parameters of the screen body at the test backlight value;

[0047] The power meter collects the power data of the screen body at the test backlight value;

[0048] The processor determines the light efficiency of the screen body at the test backlight value based on the luminance parameters and the power data, and determines the target light efficiency of the screen body of the device under test based on the detected multiple light efficiencies of the screen body.

[0049] In a fourth aspect, the present application provides a device, including a processor and a memory, where the processor is configured to execute the method for detecting the light efficiency of a screen body stored in the memory to implement the method for detecting the light efficiency of a screen body according to any one of the first aspects.

[0050] In a fifth aspect, the present application further provides a storage medium storing computer-executable instructions for executing the method for detecting the light efficiency of a screen body according to any one of the first aspects.

[0051] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art: In the method provided by the embodiments of the present application, by obtaining multiple test backlight values, a backlight control signal is sent to the device under test one by one based on the test backlight values, so that the device under test adjusts the backlight value of its screen to the corresponding test backlight value based on the backlight control signal, and the screen light efficiency of the screen is detected at the test backlight value. Finally, based on the detected multiple screen light efficiencies, the target screen light efficiency of the device under test is determined. By automatically detecting the screen light efficiency at different test backlight values, the optimal screen light efficiency can be quickly and accurately identified, and then the backlight value and current value corresponding to the optimal screen light efficiency can be obtained, ensuring the stability of the screen brightness and color saturation and improving the user experience. In addition, by the above method, there is no need for manual operation to detect the screen light efficiency, and it will not be affected by subjective factors, which is applicable to diversified screen detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application and used together with the specification to explain the principles of the present application.

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0054] One or more embodiments are illustrated by way of example in the accompanying drawings, and these exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the figures do not constitute a proportional limitation.

[0055] Figure 1 It is a flowchart of an embodiment of a method for detecting the screen light efficiency provided by an embodiment of the present application;

[0056] Figure 2 It is a flowchart of an embodiment of another method for detecting the screen light efficiency provided by an embodiment of the present application;

[0057] Figure 3 It is a flowchart of another method for detecting the screen light efficiency provided by an embodiment of the present application;

[0058] Figure 4 It is a schematic diagram of a system for detecting the screen light efficiency provided by an embodiment of the present application;

[0059] Figure 5 It is a schematic diagram of a device for detecting the screen light efficiency provided by an embodiment of the present application;

[0060] Figure 6 A structural schematic diagram of a device provided by an embodiment of the present application. Detailed implementation manners

[0061] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are only a part rather than all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0062] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or letters in different examples. Such repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0063] To solve the technical problems that the existing method for detecting the light efficiency of a screen body requires designers to manually inspect the screen body, cannot quickly and accurately identify the optimal light efficiency of the screen body, is easily affected by subjective factors, and cannot adapt to the diversified detection of screen bodies, the method provided by the present application can quickly and accurately identify the optimal light efficiency of the screen body by automatically detecting the light efficiency of the screen body under different test backlight values, and then obtain the backlight value and current value corresponding to the optimal light efficiency of the screen body, ensuring the stability of the brightness and color saturation of the screen body and improving the user experience. In addition, by the above method, there is no need to manually operate to detect the light efficiency of the screen body, and it will not be affected by subjective factors, and it is applicable to the diversified detection of screen bodies.

[0064] Figure 1 The flowchart of an embodiment of a method for detecting the light efficiency of a screen body provided by an embodiment of the present application mainly describes how to quickly and automatically detect the light efficiency of various screen bodies, obtain the optimal light efficiency of various screen bodies, further obtain the optimal current value, and then ensure the stability of the brightness and color saturation of the screen body, with a better display effect and improved user experience. As Figure 1 shown, it mainly includes the following steps:

[0065] Step 101: Obtain multiple test backlight values.

[0066] The test backlight value refers to the luminous intensity value of the backlight source of the screen body set to detect its light efficiency when conducting a light efficiency test on the screen body. It is a quantitative index for measuring the luminous brightness of the backlight source of the screen body. For example, the current backlight value of the screen body is 1, and the backlight value can intuitively reflect the brightness of the current screen body backlight.

[0067] A suitable screen body backlight value can provide sufficient brightness basis for the images displayed on the screen body, ensuring that the bright areas in the images are clear and bright, and the dark areas can also maintain a certain sense of hierarchy, without losing details due to being too dark or too bright. For example, when the screen body displays a landscape picture, a suitable backlight value can make the sky part bright and blue, while the dark areas such as trees can also present rich colors and textures.

[0068] In addition, under different backlight values, the color saturation, hue, and contrast of the screen body display will all be different. A higher backlight value may make the colors look more vivid, but it may also cause color distortion. A lower backlight value may make the colors appear dull. For example, when the screen body displays red, a suitable backlight value can make the red present a bright and pure hue, while an inappropriate backlight value may make the red darker or yellowish.

[0069] During the process of testing the light efficiency of the screen body, the screen body needs to display specific images according to the test signals, and then continuously adjust the size of the backlight value of the screen body to detect the optimal light efficiency of the screen body when displaying images under different test backlight values. The brightness of the images displayed on the screen body depends on the backlight value of the screen body. In addition, the colors displayed on the screen body are also affected by the backlight value of the screen body. By detecting the light efficiency of the screen body under different test backlight values to obtain the optimal light efficiency, the optimal backlight value corresponding to the optimal display effect of the screen body, sufficient stability of color saturation and brightness, that is, the optimal light efficiency of the screen body can be determined. The optimal backlight value of the screen body and its corresponding current value can be set in advance before the screen body leaves the factory, thereby ensuring the optimal display effect of the screen body and improving the user experience.

[0070] In one embodiment, the precise control and acquisition of the backlight value of the screen body can be achieved by writing a special algorithm, and then multiple different test backlight values can be obtained. Or, several different test backlight values can be randomly obtained. Or, by means of manual input, several different test backlight values can be obtained.

[0071] In addition, multiple test backlight values can also be obtained by other means, and the embodiments of the present application do not limit this.

[0072] Step 102: Send backlight control signals to the device under test one by one based on the test backlight values, so that the device under test adjusts the backlight of its screen body to the corresponding test backlight values based on the backlight control signals, and detect the light efficiency of the screen body under the test backlight values.

[0073] The backlight control signal is an electrical signal or digital signal used to regulate the backlight brightness parameters of a display screen, so as to set and manage the luminous intensity of the backlight source of the display screen.

[0074] The device under test refers to an electronic device installed with a screen body or having a display screen, such as a mobile phone, a tablet computer, a monitor, and a television, etc.

[0075] In one embodiment, the specific implementation manner of sequentially sending backlight control signals to the device under test based on the test backlight values, so that the device under test adjusts the backlight of its screen body to the corresponding test backlight value based on the backlight control signal and detecting the screen body light efficiency of the screen body under the test backlight value is: in a certain order, sequentially based on each set test backlight value, transmit a backlight control signal capable of controlling its backlight brightness to the device under test through a specific hardware interface or communication protocol, so that the device under test parses the corresponding backlight control signal and adjusts the backlight value of the screen body to the backlight value corresponding to the corresponding backlight control signal according to the backlight control signal, and detect the screen body light efficiency of the screen body under the test backlight value.

[0076] Exemplarily, assume that there are currently 3 test backlight values, which are 1, 3, and 5 respectively, and the current device under test is a television. Then, first send the first backlight control signal to the television. Among them, the above backlight control signal contains the test backlight value 1. The television controls the luminous brightness of the backlight source of the television screen body to 1 according to the received backlight control signal, and then uses a special detection instrument to measure the light efficiency of the current screen body; then send the second backlight control signal to the television. Among them, the second backlight control signal contains the test backlight value 3. The television controls the luminous brightness of the backlight source of the television screen body to 3 according to the received backlight control signal, and then measures the luminous efficiency of the current screen body; similarly, based on the test backlight value 5, send a backlight control signal to the television to make the television adjust the luminous brightness of the backlight source of the current screen body to 5, and detect the current screen body luminous efficiency of the television screen body.

[0077] Step 103: Determine the target screen body light efficiency of the device under test according to the detected multiple screen body light efficiencies.

[0078] The target screen luminous efficiency refers to the ability of the display screen to convert the input electrical energy into visible light under specific conditions, reaching the theoretical or industry's highest level. Essentially, it lies in balancing brightness, power consumption, and visual effects, aiming to achieve the optimal and most stable display performance with the most suitable screen data such as current value and backlight value. The target screen luminous efficiency finally obtained by the screen luminous efficiency detection method provided in this application is the optimal screen luminous efficiency corresponding to the optimal display performance of the current screen. At the same time, it is also possible to obtain a list of optimal screen luminous efficiency data such as the current value and backlight value of the screen corresponding to the optimal screen luminous efficiency.

[0079] Based on the descriptions of the above Step 101 - Step 102, it can be known that the screen will have different display effects when displaying images based on each test backlight value. Similarly, there will also be different screen luminous efficiencies. Therefore, multiple different screen luminous efficiencies can be obtained by detecting the screen luminous efficiency according to different test backlight values. At this time, it is necessary to determine an optimal screen luminous efficiency from several different screen luminous efficiencies, that is, the target screen luminous efficiency.

[0080] In an embodiment, based on the detected multiple screen luminous efficiencies, the target screen luminous efficiency of the device under test is determined. Specifically, the target screen luminous efficiency of the device under test is determined from multiple screen luminous efficiencies through an algorithm or preset conditions.

[0081] Exemplarily, the target screen luminous efficiency can be automatically determined according to numerical comparison, stability consideration, or actual requirements. For example, directly compare the numerical values of the detected multiple luminous efficiencies, and determine the screen luminous efficiency with the largest numerical value as the target screen luminous efficiency of the current screen. Or, when considering the screen luminous efficiency, the stability of the screen brightness also needs to be considered, and the screen luminous efficiency with a larger luminous efficiency value and the most stable screen brightness is determined as the target screen luminous efficiency. Or, determine the target luminous efficiency according to the specific application scenario and requirements of the display device under test. For outdoor devices, when considering the screen luminous efficiency, the screen brightness also needs to be considered, and the screen luminous efficiency with a larger luminous efficiency value and a larger screen brightness is determined as the target screen luminous efficiency. In addition, the target screen luminous efficiency can also be determined by other methods, and the embodiments of this application do not limit this.

[0082] Furthermore, while determining the target screen luminous efficiency, a list of screen luminous efficiency data of the current screen under the target screen luminous efficiency is obtained. Among them, the above list of screen luminous efficiency data records the target screen luminous efficiency value, brightness parameter, backlight value, current value of the current screen, etc. corresponding to the optimal screen luminous efficiency. The factory parameter information of the current screen can be directly set according to the obtained list of screen luminous efficiency data, which is convenient for users to directly experience the optimal display effect of the current screen when they get the screen, improving the user experience and at the same time enhancing the influence of the product.

[0083] The method provided by the embodiment of the present application obtains multiple test backlight values, and successively sends backlight control signals to the device under test based on the test backlight values, so that the device under test adjusts the backlight value of its screen to the corresponding test backlight value based on the backlight control signal, and detects the screen light efficiency of the screen at the test backlight value. Finally, based on the detected multiple screen light efficiencies, the target screen light efficiency of the device under test is determined. By automatically detecting the screen light efficiency at different test backlight values, the optimal screen light efficiency can be quickly and accurately identified, and then the backlight value and current value corresponding to the optimal screen light efficiency can be obtained, ensuring the stability of the screen brightness and color saturation and improving the user experience. In addition, by the above method, it is not necessary to manually detect the screen light efficiency, and it will not be affected by subjective factors, which is suitable for diverse screen detections.

[0084] Figure 2 FIG. is a flowchart of an embodiment of another method for detecting screen light efficiency provided by the embodiment of the present application. Based on the flowchart shown in Figure 1 the following mainly describes how to obtain multiple test backlight values, which mainly includes the following steps:

[0085] Step 201: Starting from the preset test backlight value, stepwise adjust the current test backlight value according to the set step value until the adjusted test backlight value exceeds the preset backlight value range and then stop the adjustment.

[0086] Step 202: Determine the preset test backlight value and the test backlight values obtained during the adjustment period that do not exceed the preset backlight value range as the finally obtained test backlight values.

[0087] For the above steps 201-step 201, a unified description is as follows:

[0088] The preset backlight value range refers to the range information of the size of the preset backlight value. This range can be set by the tester according to the rated working range of the screen and the actual requirements of the test, or different fixed preset backlight value range information can be set according to different devices under test to facilitate multiple tests of the same type of device under test according to the fixed preset backlight value range information. For example, if the device under test is a TV, the preset backlight value range is set to a fixed value [a~b], then when testing multiple TVs, this fixed value [a~b] is used as the preset backlight value range. In addition, the preset backlight value range can also be determined by other methods, and the embodiment of the present application does not limit this.

[0089] The preset test backlight value refers to the starting test backlight value within the preset backlight value range, that is, the first backlight value used to test the device under test. The preset test backlight value can be the maximum test backlight value within the preset backlight value range or the minimum test backlight value within the preset backlight value range.

[0090] In one embodiment, starting from the preset test backlight value, the current test backlight value is adjusted step by step according to the set step value until the adjusted test backlight value exceeds the preset backlight value range, and then the adjustment stops. The preset test backlight value and the test backlight values obtained during the adjustment that do not exceed the preset backlight value range are determined as the finally obtained test backlight values. Specifically, starting from the preset starting test backlight value, the current test backlight value is adjusted step by step according to the set step value until it exceeds the preset backlight value range, and multiple test backlight values that do not exceed the preset backlight value range are obtained.

[0091] Exemplarily, a fixed value is set as the step value. Starting from the preset starting test backlight value, the adjusted test backlight value is obtained by adding or subtracting the step value from the current test backlight value each time until the adjusted test backlight value exceeds the preset backlight value range, and then the adjustment stops. Several adjusted test backlight values that do not exceed the preset test backlight value and the preset test backlight value are determined as the final test backlight values.

[0092] For example, assume that the step value is 10, the preset backlight value range is [0 - 100], and the preset test backlight value is 0. Then, 10 is added to 0 each time to obtain the adjusted test backlight values 10, 20, 30, 40, 50... 90, 100, 110. At this time, it is found that 110 has exceeded the preset backlight value range [0 - 100], so the adjustment stops. Finally, the finally obtained test backlight values are 0, 10, 20, 30, 40, 50... 90, 100.

[0093] Step 203: Send backlight control signals to the device under test one by one based on the test backlight values, so that the device under test adjusts the backlight of its screen to the corresponding test backlight value according to the backlight control signals, and detect the screen light efficiency of the screen at the test backlight value.

[0094] Step 204: Determine the target screen light efficiency of the device under test according to the detected multiple screen light efficiencies.

[0095] For the above steps 203 - 204, refer to Figure 1 the detailed description of the relevant steps in the illustrated embodiment.

[0096] Through Figure 2Regarding the related description of the illustrated embodiment, by setting the step value to adjust the size of the test backlight value until it exceeds the preset backlight value range and stops, it can more systematically cover a wide brightness range from small to large, the test is more comprehensive, it can capture the subtle changes in the light efficiency of the screen body under different backlight values, improve the credibility of the data, and provide a solid data basis for the performance evaluation of the screen body.

[0097] Figure 3 The following is a flowchart of another method for detecting the light efficiency of a screen body provided by an embodiment of the present application. Based on the Figure 1 shown process, it mainly describes how to detect the light efficiency of the screen body under the test backlight value and how to determine the target screen body light efficiency based on multiple screen body light efficiencies, mainly including the following steps:

[0098] Step 301: Obtain multiple test backlight values, and successively send backlight control signals to the device under test based on the test backlight values, so that the device under test adjusts the backlight of its screen body to the corresponding test backlight value based on the backlight control signal.

[0099] Step 302: Control the probe of the color analyzer to traverse the center point positions of each window of the screen body to collect the brightness parameters at the center point positions of each window, obtain multiple brightness parameters, determine the average value of the brightness parameters of the multiple brightness parameters, and determine the average value of the brightness parameters as the brightness parameter of the screen body under the test backlight value.

[0100] Step 303: Control the power meter to collect the power data of the screen body under the test backlight value.

[0101] Regarding the above steps 301 - step 303, the following is a unified description:

[0102] Before obtaining multiple test backlight values, it is first necessary to send a test signal to the display device under test, control the display device under test to perform image processing on the test signal to display relevant images, then identify the relevant images in the display interface of the display device under test, and divide the screen body of the display device under test into multiple windows. The above operation of dividing windows corresponds to different test areas for different windows, which helps to detect the performance of different positions of the screen body in detail, and separately detect and analyze the pixels and brightness of each window to ensure the color saturation and brightness stability of the entire screen body.

[0103] For example, send a test signal to the display device under test to control the device under test to display relevant images, and then different test backlight value control signals can be successively sent to the display device under test: 1, 5, 8, 10, and successively detect the display effect of the current screen body under different test backlight values, that is, detect the brightness parameters and power data of the current screen body under different test backlight values.

[0104] In one embodiment, multiple test backlight values are obtained, and backlight control signals are sent to the device under test one by one based on the test backlight values, so that the device under test adjusts the backlight of its screen to the corresponding test backlight values based on the backlight control signals. The probe of the color analyzer is controlled to traverse the center point positions of each window of the screen to collect the brightness parameters at the center point positions of each window, obtaining multiple brightness parameters, determining the average value of the brightness parameters, and determining the average value of the brightness parameters as the brightness parameter of the screen at the test backlight value. The power meter is controlled to collect the power data of the screen at the test backlight value.

[0105] A color analyzer is a professional device used to measure parameters such as color and brightness. Its probe is the component directly for data collection. By controlling the probe to traverse the center point positions of each window and measuring all window center points, the brightness conditions of different regions of the entire screen can be comprehensively understood.

[0106] A power meter is an instrument used to measure electric power. By connecting the power meter to the circuit of the screen, the current and voltage conditions in the circuit can be monitored in real time. The internal circuit and algorithm of the power meter will process and calculate the measured voltage and current data to obtain the power value of the screen in the current state.

[0107] Specifically, multiple test backlight values are obtained, and backlight control information is sent to the device under test one by one based on the test backlight values, so that the device under test adjusts the backlight of the screen to the corresponding test backlight values based on the backlight control signals, and then relevant tools or devices are used to detect the light efficiency of the screen. For example, a color analyzer can be used to detect brightness parameters and color accuracy parameters, etc., and a power meter can also be used to detect the power of the screen, and then the light efficiency of the screen is calculated based on the brightness and power. The parameters of the power meter are configured. When a collection signal is received, the power data of the screen of the device under test is collected and these data are transmitted to the control device in real time.

[0108] Exemplarily, first, the position information of the center point of each window is determined, a first test backlight value control signal is sent to the device under test, and the device under test is made to adjust the backlight of its screen to the corresponding test backlight value based on the backlight control signal. Then, the color analyzer is controlled to move the probe one by one for measurement and collection according to the coordinate position information of the center point of each window, obtaining multiple brightness parameters, calculating and determining the average value of the brightness parameters, setting the average value of the brightness parameters as the brightness parameter of the entire screen at the test backlight value, and then controlling the power meter to collect the power data of the screen at the test backlight value.

[0109] Similarly, send a second test backlight value control signal to the device under test, and cause the device under test to adjust the backlight of its screen to the corresponding test backlight value based on the backlight control signal. Then, control the color analyzer to move the probe one by one according to the coordinate position information of the center points of each window for measurement and acquisition, obtain multiple brightness parameters, determine the average value of the brightness parameters through calculation, set the average value of the brightness parameters as the brightness parameter of the entire screen at the test backlight value, and then control the power meter to collect the power data of the screen at the test backlight value. By analogy, until all the test backlight values are tested.

[0110] Exemplarily, correctly connect the power meter to the power supply circuit of the screen to ensure that the power meter can accurately measure the current value and voltage of the screen. At the same time, configure the parameters of the power meter, such as configuring the measurement range rate, etc. When the power meter receives the acquisition signal, it acquires the power data of the current screen. During the acquisition process, the power meter converts the acquired current value and voltage value into power values and stores these values in the internal storage device, and at the same time transmits these data to the control device in real time.

[0111] In one embodiment, the position information of the center points of each window is determined in the following manner: control the device under test to display a preset image, the preset image includes a plurality of rectangular frames arranged in rows and columns, identify the boundary contours of the plurality of rectangular frames in the display interface of the device under test, and divide the screen of the device under test into a plurality of windows according to the boundary contours of the plurality of rectangular frames, and determine the position information of the center points of each window.

[0112] Exemplarily, when detecting and analyzing the screen, the screen needs to display a preset image according to the test signal. Among them, the specific information of the preset image is determined according to the test signal, which can be manually set by the tester or default set by the device under test.

[0113] For example, send a test instruction to the device under test through a test device (such as a TV, computer, etc.) deploying the screen light efficiency detection method provided by the embodiment of the present application, and this instruction carries a test signal. Use a specific communication protocol to let the device under test identify the preset image from the above test signal and display it on the screen. Among them, a general test signal will obtain a preset image containing a plurality of rectangular frames arranged in rows and columns after image processing. After displaying this preset image on the screen of the device under test, the boundary contours of the plurality of rectangular frames can be identified according to the edge recognition algorithm, and the screen of the device under test can be divided into a plurality of windows according to the plurality of boundary contours.

[0114] When the screen of the device under test displays a preset image, there are differences in color, brightness, etc. between the edge positions of multiple rectangular frames in the preset image and the surrounding background or other rectangular frames. Therefore, edge recognition algorithms can be used to capture these changes, thereby determining the boundary contours of the rectangular frames. In addition, the edge recognition algorithm can convert the edge contour information of each rectangular frame in the image into digital data that can be processed by a computer. The algorithm can mark in the image those pixel points that belong to the boundary of the rectangular frame and represent the boundary contour of the rectangular frame in the form of a series of coordinate points. Further analysis and processing can be performed based on these digitalized boundary contours later.

[0115] Exemplarily, after determining the boundary contours of the rectangular frames using the edge recognition algorithm, windows can be divided based on multiple boundary contours, and then the central point position information of each window can be further determined according to the divided windows and the algorithm.

[0116] For example, the central point coordinate algorithm can be used to calculate the central point position information of each window. An image coordinate system is established on the screen of the device under test. Assuming that the upper left corner of the entire screen is the coordinate origin (0, 0), that is, the upper left corner coordinate of the upper leftmost rectangular frame is the coordinate origin, the x-axis extends horizontally to the right, the y-axis extends vertically downward, the positive direction of the y-axis is downward, and the positive direction of the x-axis is to the right. Assuming the upper left corner coordinate (a, b) and the lower right corner coordinate (c, d) of a rectangular frame, then the central point coordinate of this rectangular frame can be obtained In addition, the central point position coordinates of each window can also be calculated by other means, and the embodiments of the present application do not limit this.

[0117] By dividing the screen into multiple windows as described above and controlling the probe to traverse the central point positions for data collection, different areas of the screen can be comprehensively covered. To a certain extent, the central point of the window can represent the overall characteristics of the window area. This method avoids information loss caused by only detecting partial areas of the screen. At the same time, since the brightness of different areas of the screen may fluctuate, separate collection can more carefully capture these changes. Compared with overall detection, the detection accuracy is improved. By calculating the average value, the local fluctuations and differences that may exist in the brightness parameters of a single window are eliminated, further improving the accuracy and reliability of the data.

[0118] Step 304: Determine the screen luminous efficiency of the screen at the test backlight value according to the brightness parameter and the power data.

[0119] Step 305: Determine the target screen luminous efficiency of the device under test based on the detected multiple screen luminous efficiencies.

[0120] Regarding the above steps 304 - 305, the following unified description is given:

[0121] The luminous efficiency of the screen body is calculated using the following formula based on the brightness parameters and power data detected according to the above steps:

[0122]

[0123] In the above formula (1), E is the luminous efficiency of the screen body, lm is the brightness parameter, and W is the power.

[0124] In one embodiment, the luminous efficiency of the screen body at the test backlight value is determined based on the brightness parameter and power data, and the target screen body luminous efficiency of the device under test is determined based on the detected multiple screen body luminous efficiencies. Specifically, multiple screen body luminous efficiencies at different test backlight values are calculated using the above formula (1) based on the brightness parameter and power data, and the target screen body luminous efficiency of the device under test is determined based on the multiple screen body luminous efficiencies.

[0125] Exemplarily, the maximum value of the multiple screen body luminous efficiencies is determined as the target screen body luminous efficiency of the device under test. At the same time, a list of screen body luminous efficiency data at the target screen body luminous efficiency is obtained to facilitate setting relevant parameters of the screen body according to the above screen body luminous efficiency list.

[0126] Through Figure 3 the shown process, by automatically detecting multiple test backlight values, the screen body is divided into multiple windows, and the detection of the screen body luminous efficiency is more comprehensive, accurate and efficient, ensuring the optimal color saturation and brightness of the screen body, achieving a better protection effect, improving the user experience, without manual operation detection and not being affected by subjective factors, and being suitable for diverse screen body detections.

[0127] Figure 4 The following is a schematic diagram of a detection system for the luminous efficiency of a screen body provided by an embodiment of the present application. As Figure 4 shown, the system mainly includes: a processor 41, a device under test 42, a color analyzer 43, and a power meter 44.

[0128] The processor 41, the device under test 42, the color analyzer 43, and the power meter 44 in this system are all connected in the same circuit. The processor 41 can be a computer, a television, a mobile phone, a tablet, etc. with program or instruction processing capabilities.

[0129] First, when the processor 41 receives the multi-window brightness test signal, it determines the position information of the center points of each window based on the test signal, obtains multiple test backlight values, and sequentially sends backlight control signals to the device under test based on the test backlight values. Additionally, when the processor 41 receives the multi-window brightness test signal, it first performs image preprocessing on the test signal to obtain a preset image, and then controls the device under test 42 to display the preset image, so as to facilitate subsequent detection of the display effect of the preset image on the device under test 42 at different test backlight values, and further determine the optimal value of the screen light efficiency. Among them, the preset image includes multiple rectangular frames arranged in rows and columns.

[0130] The device under test 42 can be any device equipped with a screen or display, such as a laptop, tablet, mobile phone, etc. After receiving the backlight control signal sent by the processor 41, the device under test 42 adjusts the backlight value of the screen to the corresponding test backlight value. Then, the processor 41 controls the color analyzer 43 and the power meter 44 connected to the device under test 42 on the same circuit to sequentially detect the display effect of the screen of the device under test at different test backlight values.

[0131] The color analyzer 43 is mainly used to detect the brightness parameters of the screen at the test backlight value, and the power meter 44 is mainly used to collect the power data of the screen at the test backlight value.

[0132] Finally, the processor 41 can determine the screen light efficiency of the screen at the test backlight value based on the brightness parameters and power data, and determine the target screen light efficiency of the device under test 42 according to the detected multiple screen light efficiencies.

[0133] Figure 4 The system shown has a high degree of automation. The processor can automatically complete a series of operations from signal reception, data processing to result output, reducing manual intervention, improving the detection efficiency and accuracy of the screen light efficiency, and reducing the influence of subjective factors. In addition, the device under test can cover various devices equipped with screens, which can meet the light efficiency detection requirements of different types of screens and improve product quality.

[0134] Figure 5 Schematic diagram of a device for detecting the screen light efficiency provided by an embodiment of the present application, as Figure 5 shown, the device mainly includes:

[0135] A backlight value acquisition module 501, configured to obtain multiple test backlight values;

[0136] A light efficiency detection module 502, configured to sequentially send backlight control signals to the device under test based on the test backlight values, so that the device under test adjusts the backlight of its screen to the corresponding test backlight value based on the backlight control signal, and detect the screen light efficiency of the screen at the test backlight value;

[0137] A target light efficiency determination module 503, configured to determine the target screen light efficiency of the device under test according to the detected light efficiencies of multiple said screens.

[0138] In a possible implementation manner, the backlight value acquisition module 501 is specifically configured to:

[0139] Start from a preset test backlight value, perform step adjustment on the current test backlight value according to a set step value until the adjustment stops when the adjusted test backlight value exceeds the preset backlight value range;

[0140] Determine the preset test backlight value and the test backlight values obtained during the adjustment that do not exceed the preset backlight value range as the finally obtained test backlight values.

[0141] In a possible implementation manner, the light efficiency detection module 502 includes:

[0142] A data acquisition unit, configured to control a color analyzer to collect the brightness parameters of the screen at the test backlight value, and control a power meter to collect the power data of the screen at the test backlight value;

[0143] An efficiency determination unit, configured to determine the screen luminous efficiency of the screen at the test backlight value according to the brightness parameters and the power data.

[0144] In a possible implementation manner, the data acquisition unit includes:

[0145] A brightness acquisition subunit, configured to control the probe of a color analyzer to traverse the center point positions of each window of the screen to collect the brightness parameters of the center point positions of each window, and obtain multiple brightness parameters;

[0146] A brightness parameter determination subunit, configured to determine the average value of the brightness parameters of the multiple brightness parameters, and determine the average value of the brightness parameters as the brightness parameter of the screen at the test backlight value.

[0147] In a possible implementation manner, the target light efficiency determination module 403 is specifically configured to:

[0148] Determine the maximum value among the detected light efficiencies of multiple said screens as the target screen light efficiency of the device under test.

[0149] In a possible implementation manner, the center point positions of each window of the brightness acquisition subunit are obtained through the following method:

[0150] Control the device under test to display a preset image, where the preset image includes multiple rectangular frames arranged in rows and columns;

[0151] Identify the boundary contours of the multiple rectangular frames in the display interface of the device to be tested, and divide the screen body of the device to be tested into multiple windows according to the boundary contours of the multiple rectangular frames;

[0152] Determine the position information of the center points of each of the windows.

[0153] An embodiment of the present application further provides a detection system for the light efficiency of a screen body, including a processor, a device to be tested, a color analyzer, and a power meter:

[0154] The processor determines the position information of the center points of each window based on a test signal, and obtains multiple test backlight values; and sequentially sends backlight control signals to the device to be tested based on the test backlight values;

[0155] The device to be tested adjusts the backlight value of its screen body to the corresponding test backlight value based on the backlight control signal;

[0156] The color analyzer detects the brightness parameters of the screen body at the test backlight value;

[0157] The power meter collects the power data of the screen body at the test backlight value;

[0158] The processor determines the light efficiency of the screen body at the test backlight value based on the brightness parameters and the power data, and determines the target light efficiency of the screen body of the device to be tested according to the detected multiple light efficiencies of the screen body.

[0159] As Figure 6 shown, an embodiment of the present application provides a device, including a processor 111, a communication interface 112, a memory 113, and a communication bus 114. Among them, the processor 111, the communication interface 112, and the memory 113 complete communication with each other through the communication bus 114,

[0160] The memory 113 is used to store a computer program;

[0161] In an embodiment of the present application, when the processor 111 is used to execute the program stored on the memory 113, it implements the method for detecting the light efficiency of the screen body provided in any one of the foregoing method embodiments, including:

[0162] Obtain multiple test backlight values;

[0163] Sequentially send backlight control signals to the device to be tested based on the test backlight values, so that the device to be tested adjusts the backlight of its screen body to the corresponding test backlight value based on the backlight control signal, and detects the light efficiency of the screen body at the test backlight value;

[0164] Determine the target screen light efficiency of the device under test based on the detected multiple screen light efficiencies.

[0165] An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method for detecting the screen light efficiency provided in any of the foregoing method embodiments are implemented.

[0166] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0167] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the essence of the above technical solution, or the part that contributes to the related technology, can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disc, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0168] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "include", "comprise", "contain", and "have" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or their combinations. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be executed in the particular order described or illustrated, unless the execution order is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0169] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A method for detecting the light efficiency of a screen body, characterized in that, The method includes: Obtaining a plurality of test backlight values; Sequentially sending backlight control signals to the device under test based on the test backlight values, so that the device under test adjusts the backlight of its screen to the corresponding test backlight value based on the backlight control signal, and detecting the screen luminous efficiency of the screen at the test backlight value; Determining the target screen luminous efficiency of the device under test according to the detected plurality of screen luminous efficiencies.

2. The method according to claim 1, wherein The obtaining of a plurality of test backlight values includes: Starting from a preset test backlight value, stepwise adjusting the current test backlight value according to a set step value until the adjustment stops when the adjusted test backlight value exceeds the preset backlight value range; Determining the preset test backlight value and the test backlight values obtained during the adjustment that do not exceed the preset backlight value range as the finally obtained test backlight values.

3. The method according to claim 1, characterized in that, The detecting of the screen luminous efficiency of the screen at the test backlight value includes: Controlling a color analyzer to collect the brightness parameters of the screen at the test backlight value, and controlling a power meter to collect the power data of the screen at the test backlight value; Determining the screen luminous efficiency of the screen at the test backlight value according to the brightness parameters and the power data.

4. The method according to claim 3, wherein The controlling of the color analyzer to collect the brightness parameters of the screen at the test backlight value includes: Controlling the probe of the color analyzer to traverse the center point positions of each window of the screen to collect the brightness parameters of the center point positions of each window, obtaining a plurality of brightness parameters; Determining the average value of the brightness parameters of the plurality of brightness parameters, and determining the average value of the brightness parameters as the brightness parameter of the screen at the test backlight value.

5. The method according to claim 1, wherein The determining of the target screen luminous efficiency of the device under test according to the detected plurality of screen luminous efficiencies includes: Determining the maximum value among the detected plurality of screen luminous efficiencies as the target screen luminous efficiency of the device under test.

6. The method according to claim 4, wherein The center point positions of each window are obtained by the following method: Controlling the device under test to display a preset image, and the preset image includes a plurality of rectangular frames arranged in rows and columns; Identifying the boundary contours of the plurality of rectangular frames in the display interface of the device under test, and dividing the screen of the device under test into a plurality of windows according to the boundary contours of the plurality of rectangular frames; Determining the center point position information of each window.

7. A detection device for the light efficiency of a screen body, characterized in that, The device includes: A backlight value obtaining module, configured to obtain a plurality of test backlight values; A luminous efficiency detecting module, configured to sequentially send backlight control signals to the device under test based on the test backlight values, so that the device under test adjusts the backlight of its screen to the corresponding test backlight value based on the backlight control signal, and detecting the screen luminous efficiency of the screen at the test backlight value; A target luminous efficiency determining module, configured to determine the target screen luminous efficiency of the device under test according to the detected plurality of screen luminous efficiencies.

8. A detection system for screen luminous efficiency, including a processor, a device under test, a color analyzer, and a power meter: The processor determines the position information of the center point of each window based on the test signal and obtains multiple test backlight values; and sequentially sends backlight control signals to the device under test based on the test backlight values. The device under test adjusts the backlight value of its screen body to the corresponding test backlight value based on the backlight control signal. The color analyzer detects the brightness parameter of the screen body at the test backlight value. The power meter collects the power data of the screen body at the test backlight value. The processor determines the screen body light efficiency of the screen body at the test backlight value based on the brightness parameter and the power data, and determines the target screen body light efficiency of the device under test according to the detected multiple screen body light efficiencies.

9. A device, characterized in that, It includes: A processor and a memory, where the processor is configured to execute the method for detecting the screen body light efficiency stored in the memory to implement the method for detecting the screen body light efficiency according to any one of claims 1-6.

10. A storage medium, characterized in that, The storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the method for detecting the screen body light efficiency according to any one of claims 1-6.

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