Display and display brightness calibration method

Abstract

The present invention provides a display and a display brightness calibration method, which relates to the field of medical equipment technology. The method includes: after displaying a test image, adjusting the display brightness multiple times; after each adjustment of the display brightness, obtaining a brightness set of a first target point and a brightness set of a second target point; for each brightness value corresponding to the display in the brightness set of the first target point, selecting a brightness value whose difference with the brightness value satisfies a preset condition from the brightness set of the second target point, and making a calibration set of the second target point according to the set of selected brightness values. The embodiment of the present invention can determine the calibration value of the edge adjustment of the display by the brightness of the center of the display, so that only the calibration value needs to be used for calibration when adjusting the uniformity, thereby improving the efficiency of improvement.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a display and a display brightness calibration method. Background Art

[0002] Medical displays are the "last mile" of digital medical imaging systems, and the image quality they present is an important basis for doctors' diagnosis. Medical displays have key indicators such as higher resolution, brightness, and calibration curves that meet the characteristics of medical image displays. These indicators are key factors in ensuring image accuracy. However, as the use time increases, the brightness of the display will decay over time, and the brightness value will inevitably decrease. In order to solve the problem of brightness reduction, an internal brightness sensor is used to complete the brightness adjustment.

[0003] The current measure is to add a brightness uniformity improvement module, which is developed through FPGA (Field Programmable Gate Array) to adjust the brightness of the edge of the display so that the brightness of the edge of the display is consistent with that of the center point. However, the survey found that the brightness uniformity improvement module developed using FPGA is a physical module that consumes the physical space of the display, and the FPGA development process requires rich algorithm experience and a large amount of development costs and human resources. Summary of the invention

[0004] The present invention provides a display and a display brightness calibration method, which provides a new improvement method, and can determine the calibration value of the display edge adjustment by the brightness of the display center, so that only the calibration value needs to be used for calibration during uniformity adjustment, thereby improving the improvement efficiency and not requiring additional physical space.

[0005] In a first aspect, an embodiment of the present invention provides a display, including: a communication unit and a processor;

[0006] The communication unit is used to receive the brightness value of the first target point in the display and the brightness value of the second target point in the display collected by the detector;

[0007] The processor is used to adjust the display brightness multiple times after displaying the test image;

[0008] After each adjustment of the display brightness, a brightness set of the first target point and a brightness set of the second target point are obtained; wherein the brightness value of the first target point represents the brightness of the center of the display, and the brightness of the second target point represents the brightness of the edge of the display;

[0009] For each brightness value corresponding to the display in the brightness set of the first target point, a brightness value whose difference with the brightness value meets a preset condition is selected from the brightness set of the second target point, and a calibration set of the second target point is prepared based on the selected set of brightness values.

[0010] The above-mentioned display can modulate the display brightness of the display itself after displaying the test image, and then after each adjustment, collect the brightness value of the center part of the display and the brightness value of the edge part of the display through the detector, and then based on the brightness value of the center of the display, select some brightness values ​​from the brightness values ​​of the edge part of the display as calibration indicators. In this way, when making improvements, the calibration value can be directly used for calibration, thereby improving the efficiency of the improvement and without the need to increase the physical space.

[0011] In a possible implementation manner, the processor is further configured to:

[0012] Add multiple first brightness values ​​and / or a preset number of second brightness values ​​to the brightness set of the second target point; wherein the magnitude of the first brightness value is between two adjacent brightness values ​​in the brightness set of the second target point; and the magnitude of the second brightness value is greater than the maximum brightness value in the brightness set of the second target point.

[0013] For the above-mentioned display, since the brightness value of the edge portion of the display is discontinuous, the present invention proposes to add multiple brightness values ​​to the brightness set, so that the brightness distribution is denser, so that the brightness value that meets the preset conditions with the brightness value of the center of the display can be found more accurately.

[0014] In a possible implementation manner, the processor is specifically configured to:

[0015] Eliminate brightness values ​​in the brightness set of the second target point whose difference with the brightness value is greater than a preset value;

[0016] From the brightness set of the second target point after elimination, a brightness value whose difference with the brightness value satisfies a preset condition is selected.

[0017] The above display can eliminate brightness values ​​with relatively large differences, and select brightness values ​​that meet preset conditions with the brightness value of the center of the display from the brightness values ​​after elimination, thereby improving the processing speed compared to not eliminating the processing.

[0018] In a possible implementation, the test images displayed in the area of ​​the display where the first target point is located and the test images displayed in the area of ​​the display where the second target point is located are from the same test image; or

[0019] The test images displayed in the area of ​​the display where the first target point is located and the test images displayed in the area of ​​the display where the second target point is located are from different test images.

[0020] The above display is tested through different display modes of the display, thereby improving the accuracy of the test results.

[0021] In a possible implementation manner, the processor is further configured to:

[0022] According to the edge position of the display where the area to be adjusted is located, determining a calibration set of second target points corresponding to the edge position; and adjusting the brightness value of the area to be adjusted according to the calibration set of the second target points corresponding to the edge position;

[0023] Wherein, the area of ​​the second target point corresponding to the edge position in the display is closest to the edge position; and / or

[0024] According to the calibration set of the second target points corresponding to the display mode, the brightness value of the area to be adjusted is adjusted.

[0025] When improving uniformity, the above-mentioned display adjusts the brightness value according to the calibration set corresponding to the second target point closest to the edge position, and / or selects the calibration set according to the display mode to adjust the brightness value, thereby improving the accuracy of brightness adjustment.

[0026] In a second aspect, an embodiment of the present invention provides a display brightness calibration method, which is applied to a display, comprising:

[0027] After displaying the test image, the display brightness was adjusted several times;

[0028] After each adjustment of the display brightness, a brightness value of a first target point of the display and a brightness value of a second target point in the display are collected by a detector, and a brightness set of the first target point and a brightness set of the second target point are obtained; wherein the brightness value of the first target point represents the brightness of the center of the display, and the brightness of the second target point represents the brightness of the edge of the display;

[0029] For each brightness value corresponding to the display in the brightness set of the first target point, a brightness value whose difference with the brightness value meets a preset condition is selected from the brightness set of the second target point, and a calibration set of the second target point is prepared based on the selected set of brightness values.

[0030] In a possible implementation manner, before selecting, from the brightness set of the second target point, a brightness value having a minimum difference with the brightness value, the method further includes:

[0031] Add multiple first brightness values ​​and / or a preset number of second brightness values ​​to the brightness set of the second target point; wherein the magnitude of the first brightness value is between two adjacent brightness values ​​in the brightness set of the second target point; and the magnitude of the second brightness value is greater than the maximum brightness value in the brightness set of the second target point.

[0032] In a possible implementation manner, selecting, from the brightness set of the second target point, a brightness value whose difference with the brightness value satisfies a preset condition, includes:

[0033] Eliminate brightness values ​​in the brightness set of the second target point whose difference with the brightness value is greater than a preset value;

[0034] From the brightness set of the second target point after elimination, a brightness value whose difference with the brightness value satisfies a preset condition is selected.

[0035] In a possible implementation, the test images displayed in the area of ​​the display where the first target point is located and the test images displayed in the area of ​​the display where the second target point is located are from the same test image; or

[0036] The test images displayed in the area of ​​the display where the first target point is located and the test images displayed in the area of ​​the display where the second target point is located are from different test images.

[0037] In a possible implementation, after preparing the calibration set of the second target points according to the selected set of brightness values, the method further includes:

[0038] According to the edge position of the display where the area to be adjusted is located, determining a calibration set of second target points corresponding to the edge position; and adjusting the brightness value of the area to be adjusted according to the calibration set of the second target points corresponding to the edge position;

[0039] Wherein, the area of ​​the second target point corresponding to the edge position in the display is closest to the edge position; and / or

[0040] According to the calibration set of the second target points corresponding to the display mode, the brightness value of the area to be adjusted is adjusted.

[0041] In a third aspect, an embodiment of the present invention provides a storage medium. When instructions in the storage medium are executed by a processor of a display, the display can execute the display brightness calibration method as described in any one of the second aspects.

[0042] In addition, the technical effects brought about by any implementation method in the second to third aspects can refer to the technical effects brought about by different implementation methods in the first aspect, and will not be repeated here.

[0043] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A schematic diagram of an application of a display provided by an embodiment of the present invention;

[0045] Figure 2 A schematic diagram of a display partition provided by an embodiment of the present invention;

[0046] Figure 3 A flow chart of a display brightness calibration method provided by an embodiment of the present invention;

[0047] Figure 4 A schematic diagram of the relationship between a display and a detector provided by an embodiment of the present invention;

[0048] Figure 5 A schematic diagram of multiple regions formed by a display provided by an embodiment of the present invention;

[0049] Figure 6 A schematic diagram of the positions of a first target point and a second target point in a display provided by an embodiment of the present invention;

[0050] Figure 7 A schematic diagram of a brightness set of a second target point collected according to an embodiment of the present invention;

[0051] Figure 8 A flowchart of another display brightness calibration method provided by an embodiment of the present invention;

[0052] Fig. 9 A flowchart of a method for obtaining a first brightness value provided by an embodiment of the present invention;

[0053] Fig.10 A flowchart of another method for obtaining a first brightness value provided by an embodiment of the present invention;

[0054] Fig.11 A flowchart of another display brightness calibration method provided by an embodiment of the present invention;

[0055] Fig.12 A schematic diagram of two areas in a display showing the same image according to an embodiment of the present invention;

[0056] Fig.13A schematic diagram of two areas in a display showing different images according to an embodiment of the present invention;

[0057] Fig.14 A schematic diagram of adjusting the brightness value of an edge area of ​​a display provided by an embodiment of the present invention;

[0058] Fig.15 A schematic diagram of a display including multiple edge regions provided by an embodiment of the present invention;

[0059] Fig.16 A structural diagram of a first display brightness calibration device provided by an embodiment of the present invention;

[0060] Fig.17 A structural diagram of a second display brightness calibration device provided by an embodiment of the present invention;

[0061] Fig.18 A structural diagram of a third display brightness calibration device provided by an embodiment of the present invention;

[0062] Fig.19 A structural diagram of a display provided by an embodiment of the present invention;

[0063] Fig. 20 A structural diagram of the interaction between a display, a detector and an electronic device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0064] The following will be combined with the accompanying drawings to clearly and thoroughly describe the technical solutions in the embodiments of the present application. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text is only a description of the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0065] Combination Figure 1 As shown, the medical display 100 is generally connected to various medical detection equipment, such as an endoscope 110. After the endoscope 110 takes the image of the inside of the human body, it will be uploaded to the medical display 100, and the medical display 100 will display it, so that medical staff can see the image of the inside of the human body, which is convenient for examining the condition of the human body.

[0066] The display effect of the medical display 100 is relatively important. Generally, the display center part and the display edge part of the medical display 100 are combined. Figure 2As shown, the display center portion C1 and the display edge portion C2 have different brightness, resulting in a poor display effect.

[0067] Due to the different physical conditions of the display edge and the display center, the brightness value of the display center cannot be directly set as the brightness value of the display edge. The brightness value of the display edge can only be the brightness value that the display edge can display. Based on this, the present invention proposes to improve the brightness of the display edge portion C2, determine the calibration value of the display edge portion C2 by the display center portion C1, and when improving, use the calibration value of the display edge portion C2 to improve the brightness of the display edge portion C2.

[0068] In summary, the present invention provides a display brightness calibration method, which is applied to a display, Figure 3 As shown, including:

[0069] S300: after displaying the test image, adjusting the display brightness multiple times;

[0070] S301: after each adjustment of the display brightness, collect the brightness value of a first target point of the display and the brightness value of a second target point in the display through a detector, and obtain a brightness set of the first target point and a brightness set of the second target point; wherein the brightness value of the first target point represents the brightness of the center of the display, and the brightness of the second target point represents the brightness of the edge of the display;

[0071] Combination Figure 4 As shown, the detector 40 is disposed at the lower right corner of the display 41 , that is, the edge area of ​​the display, so that the brightness of the central part and the edge part of the display can be detected by the detector 40 .

[0072] Combination Figure 5 In the edge portion of the display, a portion of the edge of the display can be selected to represent the area, which is area B. The portion of the display other than area B is the area in the center of the display, that is, area A.

[0073] Combination Figure 6 As shown, a point is selected as the first target point in area A at the center of the display, and the first target point is generally selected at the center of the display. A point is selected as the second target point in area B at the edge of the display, and the second target point is generally selected at the center of area B.

[0074] When adjusting the brightness of the display, it can be adjusted according to each brightness value of 0 to 255, that is, the brightness of the display is set to 0, and the brightness value of the first target point and the brightness value of the second target point are detected by the detector; the brightness of the display is set to 1, and the brightness value of the first target point and the brightness value of the second target point are detected by the detector; the brightness of the display is set to 2, and the brightness value of the first target point and the brightness value of the second target point are detected by the detector; and so on, until the brightness of the display is set to 255, and the brightness value of the first target point and the brightness value of the second target point are detected by the detector, the 256 brightness values ​​detected of the first target point are combined to obtain the brightness set of the first target point, and the 256 brightness values ​​detected of the second target point are combined to obtain the brightness set of the second target point.

[0075] In order to save processing speed, the adjustment value can be set according to the display brightness used by historical users. For example, historical users generally use brightness values ​​of 100 to 255. Similarly, the display brightness is set to 100, and the detector detects the brightness value of the first target point and the brightness value of the second target point; the display brightness is set to 101, and the detector detects the brightness value of the first target point and the brightness value of the second target point; and so on, until the display brightness is set to 255, and the detector detects the brightness value of the first target point and the brightness value of the second target point, the 156 brightness values ​​detected for the first target point are combined to obtain the brightness set of the first target point, and the 156 brightness values ​​detected for the second target point are combined to obtain the brightness set of the second target point.

[0076] Similarly, in order to save adjustment time, some displays are generally set with display levels, and each display level corresponds to a display brightness. For example, if there are 10 display levels, the display brightnesses are 60, 80, 100, 120, 140, 160, 180, 200, 220, and 240. Similarly, the brightness of the display is set to 60, and the brightness value of the first target point and the brightness value of the second target point are detected by the detector. The brightness of the display is set to 80, and the brightness value of the first target point and the brightness value of the second target point are detected by the detector. And so on, until the brightness of the display is set to 240, and the brightness value of the first target point and the brightness value of the second target point are detected by the detector, the 10 brightness values ​​detected of the first target point are combined to obtain the brightness set of the first target point, and the 10 brightness values ​​detected of the second target point are combined to obtain the brightness set of the second target point.

[0077] S302: For each brightness value corresponding to the display in the brightness set of the first target point, select a brightness value whose difference with the brightness value satisfies a preset condition from the brightness set of the second target point, and make a calibration set of the second target point based on the selected brightness value set.

[0078] Taking the adjustment according to each brightness value of 0 to 255 as an example, for the first target point, when the display is set to a brightness of 0, the brightness of the first target point detected by the detector is found from the brightness set of the second target point, and the brightness value that meets the preset conditions is found.

[0079] The preset condition may be that the difference is minimal, that is, the brightness value is closest.

[0080] By analogy, the brightness value of the second target point is found for all 256 brightness values ​​of 0 to 255 set by the display. A calibration set is generated.

[0081] The calibration set can be represented by a matrix, for example:

[0082]

[0083] That is, each row represents the brightness of each display and the corresponding calibration value. For example, in the first row, when the display brightness is set to 0, the calibration value of the second target point is the brightness value 0. In the nth row, when the display brightness is set to 255, the calibration value of the second target point is the brightness value m.

[0084] When adjusting the display, when the doctor adjusts the display brightness to 255, the brightness value of the edge of the display is adjusted to the brightness value m.

[0085] The calibration set can be expressed in a table, taking brightness 0 to 3 as an example:

[0086] Table 1

[0087] Display brightness Calibration value of the second target point 0 Brightness value 0 1 Brightness value 1 2 Brightness 2 3 Brightness value 3

[0088] Wherein, a LUT table is formulated according to the calibration set, so that the brightness of the edge of the display is subsequently adjusted according to the LUT table. Figure 3 The steps in can be regarded as a Gamma process.

[0089] In order to find the calibration value more accurately, before selecting the brightness value having the smallest difference with the brightness value from the brightness set of the second target point, the method further includes:

[0090] Add multiple first brightness values ​​and / or a preset number of second brightness values ​​to the brightness set of the second target point; wherein the magnitude of the first brightness value is between two adjacent brightness values ​​in the brightness set of the second target point; and the magnitude of the second brightness value is greater than the maximum brightness value in the brightness set of the second target point.

[0091] The brightness set of the second target point contains multiple discontinuous brightness values. In particular, when the calibration value is determined according to the display level of the display, the 10 brightness values ​​detected by the detector have a large space between the first brightness value and the second brightness value. Figure 7 As shown, the enlarged black dots represent the brightness values ​​detected by the detector, and the numerical points between the enlarged black dots are added.

[0092] A plurality of first brightness values ​​may be added between two adjacent brightness values, and a preset number of second brightness values, such as 10, may be added after the maximum brightness value.

[0093] Based on the above method, combined with Figure 8 As shown, an embodiment of the present invention provides another display brightness calibration method, including:

[0094] S800: After displaying the test image, adjusting the display brightness multiple times;

[0095] S801: After each adjustment of the display brightness, collect the brightness value of a first target point in the display and the brightness value of a second target point in the display through a detector, and obtain a brightness set of the first target point and a brightness set of the second target point;

[0096] S802: Expand the brightness set of the second target point, and for each brightness value corresponding to the display in the brightness set of the first target point, select a brightness value whose difference with the brightness value meets a preset condition from the expanded brightness set of the second target point, and make a calibration set of the second target point based on the selected brightness value set.

[0097] The expansion process is to add a plurality of first brightness values ​​and / or a preset number of second brightness values ​​to the brightness set of the second target point.

[0098] There are many ways to obtain a plurality of first brightness values ​​and a plurality of second brightness values. The present invention describes this in the following three ways.

[0099] Mode 1: using interpolation method to obtain multiple first brightness values ​​between two adjacent brightness values ​​in the brightness set of the second target point, or to obtain a preset number of second brightness values ​​greater than the maximum brightness value in the brightness set of the second target point.

[0100] Taking the first brightness value as an example, specifically, combining Fig. 9 As shown, including:

[0101] S900: for two adjacent brightness values ​​in the brightness set of the second target point, using an interpolation method, and determining a plurality of values ​​according to the two connected brightness values;

[0102] S901: From the obtained multiple values, retain the value between the two adjacent brightness values ​​as the first brightness value.

[0103] The interpolation method is to find the approximate value of a point, then find the approximate values ​​of the two brightness values ​​respectively as multiple values; then retain the value between the two adjacent brightness values.

[0104] Method 2: For two adjacent brightness values ​​in the brightness set of the second target point, a step size is used, starting from the smaller brightness value between the two adjacent brightness values, the step size is increased to obtain multiple first brightness values ​​until the increased brightness value is greater than the larger brightness value between the two adjacent brightness values, or starting from the maximum brightness value in the brightness set of the second target point, the step size is increased until the number of increases reaches a preset number, which is the second brightness value.

[0105] Specifically, combined Fig.10 As shown, including:

[0106] S1000: for two adjacent brightness values ​​in the brightness set of the second target point, using a step size, starting from the smaller brightness value between the two adjacent brightness values, increasing the step size to obtain a value;

[0107] S1010: Determine whether the value is greater than the larger brightness value between the two adjacent brightness values. If yes, end; otherwise, continue to execute step 1000.

[0108] For example, the two adjacent brightness values ​​are 80-100, so starting with the brightness value 80, increase the step size, for example, the step size is 2, then the new value is 82, and determine whether 82 is greater than 100. Obviously not, then based on 82, increase 2 to get 84, and determine the size of 84 and 100, and so on, to obtain multiple first brightness values ​​between 80 and 100.

[0109] If the maximum brightness value in the brightness set of the second target point is 240, then starting from 240, the step size is set to 2, and so on, to obtain a preset number of second brightness values, the preset number being 10, for example.

[0110] The step length can be obtained according to the difference between two adjacent brightness values. For example, if the difference is 20, then if the user wants to obtain 10 first brightness values, the step length can be set to 2. If the user wants 20 first brightness values, the step length can be set to 1.

[0111] The above examples are only used to understand the present invention and cannot be used as specific limitations of the present invention.

[0112] Exemplarily, in order to improve the processing speed, the present invention further proposes that, from the brightness set of the second target point, a brightness value whose difference with the brightness value satisfies a preset condition is selected, including:

[0113] Eliminate the brightness values ​​in the brightness set of the second target point whose difference with the brightness value is greater than a preset value;

[0114] From the brightness set of the eliminated second target point, a brightness value whose difference with the brightness value satisfies a preset condition is selected.

[0115] In view of the above content, the present invention proposes a display brightness calibration method, combining Fig.11 As shown, including:

[0116] S1100: after displaying the test image, adjusting the display brightness multiple times;

[0117] S1110: After each adjustment of the display brightness, collect the brightness value of the first target point in the display and the brightness value of the second target point in the display through a detector, and obtain a brightness set of the first target point and a brightness set of the second target point;

[0118] S1120: Expand the brightness set of the second target point;

[0119] S1130: For each brightness value corresponding to the display in the brightness set of the first target point, eliminate the brightness values ​​in the brightness set of the second target point whose difference with the brightness value is greater than a preset value from the expanded brightness set of the second target point, and select the brightness value whose difference with the brightness value satisfies the preset condition from the brightness set of the eliminated second target point.

[0120] S1140: Create a calibration set of second target points based on the selected set of brightness values.

[0121] Regarding step 1130 , the preset condition is that the difference is minimum.

[0122] For example, when you want to find the brightness value of the second target point corresponding to the brightness value of 100 in the first target value, extract the brightness values ​​of the second target point that are significantly different from 100, such as those after 200 or before 50, and then find the brightness value with the smallest difference from 100 from the brightness set of the extracted second target points.

[0123] Since doctors generally perform comparative observation in a display, which requires the display to display multiple images, in order to adapt to such a situation, the present invention can perform calibration processing in these scenarios during calibration.

[0124] The test images displayed in the area of ​​the display where the first target point is located and in the area of ​​the display where the second target point is located are from the same test image; or

[0125] The test images displayed in the area of ​​the display where the first target point is located and the test images displayed in the area of ​​the display where the second target point is located are from different test images.

[0126] The test images displayed in the area of ​​the display where the first target point is located and the area of ​​the display where the second target point is located are from the same test image. When calibrating, the test images displayed in the area of ​​the display where the first target point is located and the area of ​​the display where the second target point is located may also be from the same test image. Fig.12 As shown, the test images displayed in area A and area B are from the same test image, that is, when the display receives the input test image, the test image can be displayed normally, thereby completing the test process.

[0127] When the test images displayed in the area of ​​the display where the first target point is located and the test images displayed in the area of ​​the display where the second target point is located are from different test images, Fig.13 As shown, it is to simulate that a doctor displays another image different from the main displayed image in a window manner. For example, for a human endoscope, area A displays the image collected by the real-time human endoscope, and area B displays the structural image of the human body in a window manner.

[0128] Similarly, based on this displayed image, the calibration steps are the same. Specifically, after displaying the test image, the display brightness is adjusted multiple times. The display brightness is the display brightness of area A and area B. Area A is set to a brightness, and area B is also set to the same brightness. After each adjustment of the display brightness, the brightness value of the first target point of the display and the brightness value of the second target point in the display are collected through the detector, and the brightness set of the first target point and the brightness set of the second target point are obtained. For the brightness value corresponding to each brightness of the display in the brightness set of the first target point, the brightness value whose difference with the brightness value meets the preset conditions is selected from the brightness set of the second target point, and the calibration set of the second target point is prepared according to the set of selected brightness values. For the specific content, please refer to the above introduction.

[0129] In the display process, after receiving the test image, the display copies the test image to obtain two test images, and displays one test image in area A and the other test image in area B.

[0130] Exemplarily, for the subsequent adjustment process, the brightness value of the area to be adjusted is adjusted according to the calibration set of the second target points corresponding to the display mode.

[0131] Among them, the brightness value of the area to be adjusted is adjusted. Specifically, after a new image is input into the display, the brightness value in the area to be adjusted in the display is adjusted with reference to the calibration set to obtain a new area to be adjusted. The new area to be adjusted is combined with other areas and then displayed.

[0132] For the normal display mode, the brightness value of the area to be adjusted can be adjusted according to the calibration set of the second target point corresponding to the normal display mode. The normal display mode means that the test images displayed in the area of ​​the display where the first target point is located and the area of ​​the display where the second target point is located are from the same test image, that is, the display displays one image.

[0133] For the window display mode, the brightness value of the area to be adjusted can be adjusted according to the calibration set of the second target point corresponding to the window display mode. The window display mode means that the test images displayed in the area of ​​the display where the first target point is located and the area of ​​the display where the second target point is located are from different test images, that is, the display displays two images, one of which is displayed in a floating window manner.

[0134] For a display, it is generally a rectangle with four edges. For more detailed adjustment, the present invention can obtain a calibration set for each edge. Then, when adjusting, the brightness value of the edge can be adjusted according to the calibration set of the corresponding edge.

[0135] Exemplarily, after making a calibration set of the second target point according to the selected set of brightness values, Fig.14 As shown, the method also includes:

[0136] S1400: Determine a calibration set of second target points corresponding to the edge position according to the edge position of the display where the area to be adjusted is located;

[0137] S1410: Adjust the brightness value of the area to be adjusted according to the calibration set of the second target points corresponding to the edge position.

[0138] The area of ​​the second target point corresponding to the edge position in the display is closest to the edge position.

[0139] Exemplary, combined Fig.15As shown, the above calibration method is used to calibrate the calibration set of the edge area P1 above the display, the calibration set of the edge area P2 on the left side of the display, and the calibration set of the edge area P3 on the right side of the display.

[0140] When the edge area P1 above the display is to be adjusted, the brightness value of the edge located above the display is adjusted using the calibration set of the edge above the display.

[0141] When the edge area P2 on the left side of the display is to be adjusted, the brightness value of the edge on the left side of the display is adjusted using the calibration set of the edge on the left side of the display.

[0142] When the edge area P3 on the right side of the display is to be adjusted, the edge on the right side of the display uses the calibration set of the edge on the right side of the display to adjust the brightness value.

[0143] When the edge area below the display needs to be adjusted, compared with the edge area P1 above the display, it is obvious that the edge area P2 on the left side of the display and the edge area P3 on the right side of the display are closest to the edge area below the display. Then, one can select one from the edge area P2 on the left side of the display and the edge area P3 on the right side of the display as the calibration set for adjusting the edge area below the display.

[0144] Of course, when there is only one calibration set for the edge of the display, then whether it is the edge area P1 above the display, the edge area P2 on the left of the display, the edge area P3 on the right of the display, or the edge area below the display, the same calibration set is used to adjust the brightness value of the edge area.

[0145] Exemplarily, based on the calibration set of second target points corresponding to the display mode and the edge position of the display where the area to be adjusted is located, the corresponding calibration set of second target points is determined, and based on the corresponding calibration set of second target points, the brightness value of the area to be adjusted is adjusted; wherein the area in the display where the second target point corresponding to the edge position is closest to the edge position.

[0146] For example, the current display mode is the window display mode, and the area to be adjusted is the lower edge area of ​​the display. Then, a calibration set of the second target point that is closest to the lower edge of the display and is in window display mode is used to adjust the brightness value of the area to be adjusted.

[0147] like Fig.16 As shown, the present invention also provides a display brightness calibration device, which is applied to a display, comprising:

[0148] An adjustment module 1600, for adjusting display brightness multiple times after displaying a test image;

[0149] A recording module 1610 is used to collect the brightness value of the first target point of the display and the brightness value of the second target point in the display through a detector after each adjustment of the display brightness, and obtain a brightness set of the first target point and a brightness set of the second target point; wherein the brightness value of the first target point represents the brightness of the center of the display, and the brightness of the second target point represents the brightness of the edge of the display;

[0150] Determine module 1620, for selecting, from the brightness set of the second target point, a brightness value corresponding to each brightness of the display in the brightness set of the first target point, a brightness value whose difference with the brightness value satisfies a preset condition, and prepare a calibration set of the second target point based on the set of selected brightness values.

[0151] Optional, combined Fig.17 As shown, the device further includes: a determination module 1620 and a recording module 1610, which are respectively connected to the expansion module 1630;

[0152] Expansion module 1630 is used to add multiple first brightness values ​​and / or a preset number of second brightness values ​​to the brightness set of the second target point; wherein the size of the first brightness value is between two adjacent brightness values ​​in the brightness set of the second target point; and the size of the second brightness value is greater than the maximum brightness value in the brightness set of the second target point.

[0153] Optionally, the determination module 1620 is specifically configured to:

[0154] Eliminate brightness values ​​in the brightness set of the second target point whose difference with the brightness value is greater than a preset value;

[0155] From the brightness set of the second target point after elimination, a brightness value whose difference with the brightness value satisfies a preset condition is selected.

[0156] Optionally, the test images displayed in the area of ​​the display where the first target point is located and the test images displayed in the area of ​​the display where the second target point is located are from the same test image; or

[0157] The test images displayed in the area of ​​the display where the first target point is located and the test images displayed in the area of ​​the display where the second target point is located are from different test images.

[0158] Optional, combined Fig.18 As shown, the device further includes: a determination module 1620 connected to a calibration module 1640;

[0159] The calibration module 1640 is used to determine a calibration set of second target points corresponding to the edge position of the display where the area to be adjusted is located; and adjust the brightness value of the area to be adjusted according to the calibration set of the second target points corresponding to the edge position;

[0160] Wherein, the area of ​​the second target point corresponding to the edge position in the display is closest to the edge position; and / or

[0161] According to the calibration set of the second target points corresponding to the display mode, the brightness value of the area to be adjusted is adjusted.

[0162] In addition, combined Figure 1-Figure 18 The display brightness calibration method and device described in the embodiments of the present invention can be implemented by a display.

[0163] The display comprises: a communication unit and a processor;

[0164] The communication unit is used to receive the brightness value of the first target point in the display and the brightness value of the second target point in the display collected by the detector;

[0165] The processor is used to adjust the display brightness multiple times after displaying the test image;

[0166] After each adjustment of the display brightness, a brightness set of the first target point and a brightness set of the second target point are obtained; wherein the brightness value of the first target point represents the brightness of the center of the display, and the brightness of the second target point represents the brightness of the edge of the display;

[0167] For each brightness value corresponding to the display in the brightness set of the first target point, a brightness value whose difference with the brightness value meets a preset condition is selected from the brightness set of the second target point, and a calibration set of the second target point is prepared based on the selected set of brightness values.

[0168] Optionally, the processor is further configured to:

[0169] Add multiple first brightness values ​​and / or a preset number of second brightness values ​​to the brightness set of the second target point; wherein the magnitude of the first brightness value is between two adjacent brightness values ​​in the brightness set of the second target point; and the magnitude of the second brightness value is greater than the maximum brightness value in the brightness set of the second target point.

[0170] Optionally, the processor is specifically configured to:

[0171] Eliminate brightness values ​​in the brightness set of the second target point whose difference with the brightness value is greater than a preset value;

[0172] From the brightness set of the second target point after elimination, a brightness value whose difference with the brightness value satisfies a preset condition is selected.

[0173] Optionally, the test images displayed in the area of ​​the display where the first target point is located and the test images displayed in the area of ​​the display where the second target point is located are from the same test image; or

[0174] The test images displayed in the area of ​​the display where the first target point is located and the test images displayed in the area of ​​the display where the second target point is located are from different test images.

[0175] Optionally, the processor is further configured to:

[0176] According to the edge position of the display where the area to be adjusted is located, determining a calibration set of second target points corresponding to the edge position; and adjusting the brightness value of the area to be adjusted according to the calibration set of the second target points corresponding to the edge position;

[0177] Wherein, the area of ​​the second target point corresponding to the edge position in the display is closest to the edge position; and / or

[0178] According to the calibration set of the second target points corresponding to the display mode, the brightness value of the area to be adjusted is adjusted.

[0179] Based on the above introduction, an exemplary Fig.19 Display structure.

[0180] Fig.19 A schematic diagram of the structure of a display is shown.

[0181] The following is a detailed description of the embodiment using a display as an example. It should be understood that Fig.19 The display shown is only an example and the display may have more Fig.19 The more or less components shown in the figure can be combined with two or more components, or can have different component configurations. The various components shown in the figure can be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and / or application specific integrated circuits.

[0182] Fig.19 FIG. 2 exemplarily shows a hardware configuration block diagram of a display according to an exemplary embodiment. Fig.19 As shown, the display includes components such as a communication interface 1910, a memory 1920, a display unit 1930, a processor 1940, and a power supply 1950.

[0183] The communication interface 1910 can be used to connect different detection equipment, for example, to connect an endoscope, a detector, etc. The detector detects the brightness value of a first target point on the display and the brightness value of a second target point on the display.

[0184] The memory 1920 can be used to store software programs and data. The processor 1940 executes various functions of the display and data processing by running the software programs or data stored in the memory 1920. The memory 1920 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage device. The memory 1920 stores an operating system that enables the display to run. In the present application, the memory 1920 can store an operating system and various application programs, and can also store code for executing the method described in the embodiment of the present application.

[0185] The display unit 1930 may be used to receive input digital or character information and generate signal input related to user settings and function control of the display. Specifically, the display unit 1930 may include a touch screen 1931 disposed on the front of the display, which may collect user touch operations on or near it, such as clicking a button, dragging a scroll box, etc.

[0186] The display unit 1930 can also be used to display a graphical user interface (GUI) of information input by a user or information provided to a user. Specifically, the display unit 1930 may include a display screen 1932 disposed on the front of the display. The display screen 1932 may be configured in the form of a liquid crystal display, a light emitting diode, etc. The display unit 1930 may be used to display various graphical user interfaces described in this application.

[0187] The touch screen 1931 may be covered on the display screen 1932, or the touch screen 1931 and the display screen 1932 may be integrated to realize the input and output functions of the display, and the integrated display screen may be referred to as a touch display screen. In the present application, the display unit 1930 may display the application program and the corresponding operation steps.

[0188] The processor 1940 is the control center of the display, which uses various interfaces and lines to connect various parts of the entire terminal, and executes various functions of the display and processes data by running or executing software programs stored in the memory 1920, and calling data stored in the memory 1920. In some embodiments, the processor 1940 may include one or more processing units; the processor 1940 may also integrate an application processor and a baseband processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the baseband processor mainly processes wireless communications. It is understandable that the above-mentioned baseband processor may not be integrated into the processor 1940. In this application, the processor 1940 can run the operating system, application programs, user interface display and touch response, as well as the processing method described in the embodiment of the present application. In addition, the processor 1940 is coupled to the display unit 1930.

[0189] The display also includes a power supply 1950 (such as a battery) for supplying power to various components. The power supply can be logically connected to the processor 1940 through a power management system, so that the power management system can manage functions such as charging, discharging, and power consumption. The display can also be configured with a power button for turning the display on and off, as well as locking the screen and other functions.

[0190] Combination Fig. 20 As shown, the display brightness calibration method is applied to an electronic device, and the electronic device 2000 is connected to a display 2010 and a detector 2020 respectively;

[0191] During calibration, the electronic device 2000 can output a test image to the display 2010, and the display 2010 displays the test image. Then the electronic device 2000 can control the display 2010 to adjust the display brightness. The electronic device 2000 controls the detector 2020 to collect the brightness value of the first target point of the display and the brightness value of the second target point in the display; the electronic device 2000 receives the brightness value of the first target point of the display and the brightness value of the second target point in the display collected by the detector 2020.

[0192] By analogy, after adjusting the display brightness of the display 2010 for multiple times, the electronic device 2000 obtains the brightness set of the first target point and the brightness set of the second target point. For the brightness value corresponding to each brightness of the display in the brightness set of the first target point, a brightness value whose difference with the brightness value satisfies a preset condition is selected from the brightness set of the second target point, and a calibration set of the second target point is prepared according to the set of selected brightness values.

[0193] The electronic device 2000 transmits the calibration set of the second target points to the display 2010, so that the display 2010 can use the calibration set of the second target points to adjust the brightness of the edge of the display.

[0194] In addition, in combination with the display in the above embodiments, an embodiment of the present invention may provide a storage medium, and when the instructions in the storage medium are executed by the processor of the display, the display can execute the display brightness calibration method as described in any one of the above items.

[0195] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0196] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A display, It is characterized in that include: a communication unit and a processor; The communication unit is used to receive the brightness value of the first target point in the display and the brightness value of the second target point in the display collected by the detector; The processor is used to adjust the display brightness multiple times after displaying the same test image in two areas of the display; one area is the center of the display; the other area is the edge of the display; After each adjustment of the display brightness, a brightness set of the first target point and a brightness set of the second target point are obtained; wherein the brightness value of the first target point represents the brightness of the center of the display, and the brightness of the second target point represents the brightness of the edge of the display; For each brightness value corresponding to the display in the brightness set of the first target point, select a brightness value whose difference with the brightness value satisfies a preset condition from the brightness set of the second target point, and make a calibration set of the second target point according to the set of selected brightness values; Formulate a LUT table according to the calibration set of the second target points; According to the LUT table, the brightness value of the edge area is adjusted, thereby improving the brightness of the edge area.

2. The display according to claim 1, It is characterized in that The processor is further configured to: Add multiple first brightness values ​​and / or a preset number of second brightness values ​​to the brightness set of the second target point; wherein the magnitude of the first brightness value is between two adjacent brightness values ​​in the brightness set of the second target point; and the magnitude of the second brightness value is greater than the maximum brightness value in the brightness set of the second target point.

3. The display according to claim 1, It is characterized in that The processor is specifically used for: Eliminate brightness values ​​in the brightness set of the second target point whose difference with the brightness value is greater than a preset value; From the brightness set of the second target point after elimination, a brightness value whose difference with the brightness value satisfies a preset condition is selected.

4. The display according to any one of claims 1 to 3, It is characterized in that The processor is further configured to: According to the edge position of the display where the area to be adjusted is located, determining a calibration set of second target points corresponding to the edge position; and adjusting the brightness value of the area to be adjusted according to the calibration set of the second target points corresponding to the edge position; Wherein, the area of ​​the second target point corresponding to the edge position in the display is closest to the edge position; and / or According to the calibration set of the second target points corresponding to the display mode, the brightness value of the area to be adjusted is adjusted.

5. A display brightness calibration method, It is characterized in that Applied to displays, including: Adjusting the display brightness multiple times after displaying the same test image in two areas of the display; one area is at the center of the display; the other area is at the edge of the display; After each adjustment of the display brightness, a brightness value of a first target point of the display and a brightness value of a second target point in the display are collected by a detector, and a brightness set of the first target point and a brightness set of the second target point are obtained; wherein the brightness value of the first target point represents the brightness of the center of the display, and the brightness of the second target point represents the brightness of the edge of the display; For each brightness value corresponding to the display in the brightness set of the first target point, select a brightness value whose difference with the brightness value satisfies a preset condition from the brightness set of the second target point, and make a calibration set of the second target point according to the set of selected brightness values; Formulate a LUT table according to the calibration set of the second target points; According to the LUT table, the brightness value of the edge area is adjusted, thereby improving the brightness of the edge area.

6. The method according to claim 5, It is characterized in that Before selecting, from the brightness set of the second target point, a brightness value having a minimum difference with the brightness value, the method further comprises: Add multiple first brightness values ​​and / or a preset number of second brightness values ​​to the brightness set of the second target point; wherein the magnitude of the first brightness value is between two adjacent brightness values ​​in the brightness set of the second target point; and the magnitude of the second brightness value is greater than the maximum brightness value in the brightness set of the second target point.

7. The method according to claim 5, It is characterized in that Selecting, from the brightness set of the second target point, a brightness value whose difference with the brightness value satisfies a preset condition, comprising: Eliminate brightness values ​​in the brightness set of the second target point whose difference with the brightness value is greater than a preset value; From the brightness set of the second target point after elimination, a brightness value whose difference with the brightness value satisfies a preset condition is selected.

8. The method according to any one of claims 5 to 7, It is characterized in that After preparing the calibration set of the second target points according to the selected set of brightness values, the method further includes: According to the edge position of the display where the area to be adjusted is located, determining a calibration set of second target points corresponding to the edge position; and adjusting the brightness value of the area to be adjusted according to the calibration set of the second target points corresponding to the edge position; Wherein, the area of ​​the second target point corresponding to the edge position in the display is closest to the edge position; and / or According to the calibration set of the second target points corresponding to the display mode, the brightness value of the area to be adjusted is adjusted.

Images