A calibration system and method for cabin display screen brightness alignment

Abstract

The present invention provides a calibration system and method for aligning the brightness of a cockpit display screen, which belongs to the technical field of display screen brightness calibration, and includes a cockpit display screen, a brightness detection module and a calibration module. The brightness detection module is used to detect the brightness of the cockpit display screen, and the output end of the brightness detection module is connected to the input end of the calibration module, and the output end of the calibration module is connected to the input end of the cockpit display screen. At the beginning of calibration, the brightness detection module detects the maximum brightness of the cockpit display screen. If the maximum brightness of the cockpit display screen is within a set range, no adjustment is made; if the maximum brightness of the cockpit display screen is not within the set range, the calibration module calculates the adjustment coefficient of the working current of the backlight beads of the cockpit display screen. If the adjustment coefficient is not within the coefficient range, the adjustment fails; if the adjustment coefficient is within the range, the calibration module adjusts the working current of the backlight beads of the cockpit display screen according to the adjustment coefficient, and repeats the operation process. The present invention improves the user experience.

Description

Technical Field

[0001] The present invention belongs to the technical field of display screen brightness calibration, and in particular, relates to a calibration system and method for cabin display screen brightness alignment. Background Art

[0002] Modern smart cars are often equipped with multiple cockpit display screens. The brightness of the cockpit display screens is affected by the performance of the backlight beads. The backlight beads often have different performances, resulting in inconsistent maximum brightness of the cockpit display screens, which affects the user experience.

[0003] Chinese patent document CN114078458A discloses a brightness adjustment method, a brightness adjustment device and a computer-readable storage medium. The brightness adjustment method is applied to a terminal, and the terminal includes a display screen. The brightness adjustment method includes: determining the current display brightness of the display screen; if the current display brightness is higher than the first brightness, maintaining the backlight brightness of the display screen at the second brightness, and adjusting the display brightness of the display screen by adjusting the transparency of the mask added to the display screen, wherein the second brightness is higher than the first brightness. Through the brightness adjustment method provided by the present disclosure, the backlight brightness currently used can be determined according to the current display brightness of the display screen.

[0004] The existing technology does not take into account the problem of different maximum brightness of the cockpit display screen, which affects the user experience. Summary of the invention

[0005] The present invention aims to provide a calibration system and method for cabin display screen brightness alignment, so as to achieve the technical purpose of unifying the maximum brightness of the cabin display screen and improving the user experience.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] The present invention provides a calibration system for cabin display screen brightness alignment, comprising a cabin display screen, a brightness detection module and a calibration module, wherein the brightness detection module is used to detect the brightness of the cabin display screen, the output end of the brightness detection module is connected to the input end of the calibration module, and the output end of the calibration module is connected to the input end of the cabin display screen.

[0008] The brightness detection module inputs the brightness information of the cockpit display screen to the calibration module, and the calibration module outputs the calibration instruction to the cockpit display screen.

[0009] The brightness detection module adopts a brightness sensor.

[0010] The calibration module adopts a brightness calibration station.

[0011] The output end of the brightness sensor is connected to the input end of the brightness calibration station through a bus.

[0012] The present invention provides a calibration method for cabin display screen brightness alignment:

[0013] Step 1: The brightness detection module detects the maximum brightness of the cockpit display.

[0014] Step 2: If the maximum brightness of the cockpit display is within the set range, no adjustment is made; if the maximum brightness of the cockpit display is not within the set range, the calibration module calculates the adjustment coefficient of the working current of the backlight beads of the cockpit display.

[0015] Step 3: If the adjustment coefficient is not within the coefficient range, the adjustment fails; if the adjustment coefficient is within the range, the calibration module adjusts the operating current of the backlight beads of the cockpit display according to the adjustment coefficient and repeats the operation from step 1.

[0016] In step 1, the brightness of the cockpit display screen is set to maximum before calibration, and the brightness sensor detects the maximum brightness of the cockpit display screen and inputs the brightness information into the calibration module.

[0017] In step two, when the maximum brightness of the cockpit display screen is greater than the maximum range value of the set range, the adjustment coefficient of the working current of the backlight beads of the cockpit display screen is the ratio of the maximum range value to the maximum brightness of the cockpit display screen; when the brightness of the cockpit display screen is less than the minimum range value of the set range, the adjustment coefficient of the working current of the backlight beads of the cockpit display screen is the ratio of the minimum range value to the maximum brightness of the cockpit display screen.

[0018] In step three, the brightness calibration station adjusts the operating current of the backlight beads of the cockpit display according to the adjustment coefficient.

[0019] The technical effects of the present invention are:

[0020] (1) The present invention unifies the brightness of the cockpit display screen, thereby improving the user experience.

[0021] (2) The present invention adjusts the maximum brightness of the cockpit display screen by adjusting the coefficient of the working current of the backlight lamp beads, thereby reducing the performance requirements of the backlight lamp beads and reducing the cost.

[0022] (3) The present invention calibrates the maximum brightness of the cockpit display screen through a calibration algorithm. The range of the maximum brightness of the cockpit display screen can be manually set. The maximum brightness of the cockpit display screen can be flexibly adjusted to meet the user needs of different products.

[0023] (4) After adjusting the maximum brightness of the cockpit display screen, the present invention re-detects the maximum brightness of the cockpit display screen and re-calibrates it, thereby improving the accuracy of the maximum brightness calibration of the cockpit display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] This specification includes the following drawings, which show the following contents:

[0025] Figure 1 The logical structure block diagram of a calibration system and method for cabin display screen brightness alignment of the present invention;

[0026] Figure 1 Marked as: 1. Cockpit display screen; 2. Brightness detection module; 3. Calibration module. DETAILED DESCRIPTION

[0027] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0028] The present invention provides a calibration system for cabin display screen brightness alignment, comprising a cabin display screen 1, a brightness detection module 2 and a calibration module 3, wherein the brightness detection module 2 is used to detect the brightness of the cabin display screen 1, the output end of the brightness detection module 2 is connected to the input end of the calibration module 3, and the output end of the calibration module 3 is connected to the input end of the cabin display screen 1.

[0029] The brightness detection module 2 inputs the brightness information of the cockpit display screen 1 to the calibration module 3 , and the calibration module 3 outputs a calibration instruction to the cockpit display screen 1 .

[0030] The brightness detection module 2 uses a brightness sensor. The calibration module 3 uses a brightness calibration station. The output end of the brightness sensor is connected to the input end of the brightness calibration station through a bus.

[0031] The present invention provides a calibration method for cabin display screen brightness alignment:

[0032] Step 1: The brightness detection module 2 detects the maximum brightness of the cockpit display screen 1.

[0033] Step 2: If the maximum brightness of the cockpit display screen 1 is within the set range, no adjustment is made; if the maximum brightness of the cockpit display screen 1 is not within the set range, the calibration module 3 calculates the adjustment coefficient of the working current of the backlight beads of the cockpit display screen 1.

[0034] Step 3: If the adjustment coefficient is not within the coefficient range, the adjustment fails; if the adjustment coefficient is within the range, the calibration module 3 adjusts the operating current of the backlight beads of the cockpit display screen 1 according to the adjustment coefficient, and repeats the operation from step 1.

[0035] In step 1, the brightness of the cockpit display screen 1 is set to maximum before calibration, and the brightness sensor detects the maximum brightness of the cockpit display screen 1 and inputs the brightness information into the calibration module 3 .

[0036] In step two, when the maximum brightness of the cockpit display screen 1 is greater than the maximum range value of the set range, the adjustment coefficient of the working current of the backlight lamp beads of the cockpit display screen 1 is the ratio of the maximum range value to the maximum brightness of the cockpit display screen 1; when the brightness of the cockpit display screen 1 is less than the minimum range value of the set range, the adjustment coefficient of the working current of the backlight lamp beads of the cockpit display screen 1 is the ratio of the minimum range value to the maximum brightness of the cockpit display screen 1.

[0037] In step three, the brightness calibration station adjusts the operating current of the backlight lamp beads of the cockpit display screen 1 according to the adjustment coefficient.

[0038] The following is a detailed description of a system and method for calibrating brightness alignment of a cockpit display screen according to the present invention.

[0039] The present invention discloses a calibration system for aligning the brightness of a cockpit display screen, including a cockpit display screen 1, a brightness detection module 2 and a calibration module 3, wherein the cockpit display screen 1 is a device to be calibrated. A plurality of cockpit display screens 1 are often provided in modern smart cars, and the brightness of the cockpit display screen 1 is affected by the performance of backlight lamp beads. The backlight lamp beads often have different performances, resulting in the maximum brightness of the cockpit display screen 1 being not uniform, which affects the user experience. The present invention calibrates the maximum brightness of the cockpit display screen 1 by adjusting the working current of the backlight lamp beads of the cockpit display screen 1. The present invention adjusts the maximum brightness of the cockpit display screen 1 by adjusting the coefficient of the working current of the backlight lamp beads, reduces the performance requirements of the backlight lamp beads, and reduces the cost.

[0040] The brightness detection module 2 uses a brightness sensor to detect the maximum brightness of the display screen and transmit the maximum brightness information of the display screen to the calibration module 3.

[0041] The calibration module 3 adopts a brightness calibration station to calibrate the maximum brightness of the cockpit display screen 1 . Specifically, the maximum brightness of the cockpit display screen 1 is calibrated by adjusting the working current of the backlight beads of the cockpit display screen 1 .

[0042] The output end of the brightness sensor is connected to the input end of the calibration station, and the output end of the calibration station is connected to the input end of the cockpit display screen 1.

[0043] A calibration method for cabin display screen brightness alignment of the present invention is:

[0044] The brightness of the cockpit display screen 1 is set to the maximum before calibration. The brightness detection module 2 detects the maximum brightness of the cockpit display screen 1 and inputs the brightness information to the calibration module 3 .

[0045] The calibration module 3 receives the maximum brightness information of the cockpit display screen 1 input by the brightness detection module 2. If the maximum brightness of the cockpit display screen 1 is within the set range, no adjustment is made; if the maximum brightness of the cockpit display screen 1 is not within the range, the calibration module 3 calculates the adjustment coefficient of the working current of the backlight beads of the cockpit display screen 1. The specific calculation process of the adjustment coefficient of the working current of the backlight beads of the cockpit display screen 1 is that when the maximum brightness of the cockpit display screen 1 is greater than the maximum range value of the set range, the adjustment coefficient of the working current of the backlight beads of the cockpit display screen 1 is the ratio of the maximum range value to the maximum brightness of the cockpit display screen 1; when the brightness of the cockpit display screen 1 is less than the minimum range value of the set range, the adjustment coefficient of the working current of the backlight beads of the cockpit display screen 1 is the ratio of the minimum range value to the maximum brightness of the cockpit display screen 1. In an embodiment of the present invention, the setting range of the maximum brightness of the cockpit display screen 1 is 950~1000cd / m 2 , the specific calculation formula is: when the maximum brightness Y of the cockpit display screen 1 is greater than the maximum range value of the set range, that is, when the maximum brightness Y of the cockpit display screen 1 is greater than 1000cd / m2, the adjustment coefficient X=1000 / Y; when the maximum brightness Y of the cockpit display screen 1 is less than the minimum range value of the set range, that is, when the maximum brightness Y of the cockpit display screen 1 is less than 950cd / m2, the adjustment coefficient X=950 / Y. The working current of the backlight lamp bead in the present invention has a set value, and the set value of the working current is adjusted by the adjustment coefficient. In an embodiment of the present invention, the set value of the working current of the backlight lamp bead is 60mA. The present invention calibrates the maximum brightness of the cockpit display screen 1 through a calibration algorithm, and the range of the maximum brightness of the cockpit display screen 1 can be manually set. The maximum brightness of the cockpit display screen 1 can be flexibly adjusted to meet the user needs of different products.

[0046] After the calibration module 3 calculates the adjustment coefficient of the working current of the backlight beads of the cockpit display screen 1, if the adjustment coefficient is not within the coefficient range, the adjustment fails; if the adjustment coefficient is within the range, the calibration module 3 adjusts the working current of the backlight beads of the cockpit display screen 1 according to the adjustment coefficient. Specifically, the set value of the working current of the backlight beads is multiplied by the adjustment coefficient to obtain the calibration value of the working current of the backlight beads, which is calibrated by the calibration module 3 and the operation is repeated from step one. The adjustment coefficient range in the present invention is 0.5 to 1.5. After adjusting the maximum brightness of the cockpit display screen 1, the present invention detects the maximum brightness of the cockpit display screen 1 again and calibrates it again, thereby improving the accuracy of the maximum brightness calibration of the cockpit display screen 1.

[0047] The present invention unifies the brightness of the cockpit display screen 1, thereby improving the user experience.

[0048] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A calibration system for cabin display brightness alignment, characterized by: It includes a cockpit display screen, a brightness detection module and a calibration module. The brightness detection module is used to detect the brightness of the cockpit display screen. The output end of the brightness detection module is connected to the input end of the calibration module. The output end of the calibration module is connected to the input end of the cockpit display screen.

2. A cockpit display screen brightness alignment calibration system as claimed in claim 1, characterized in that: The brightness detection module inputs the brightness information of the cockpit display screen to the calibration module, and the calibration module outputs the calibration instruction to the cockpit display screen.

3. A cockpit display screen brightness alignment calibration system as claimed in claim 1, characterized in that: The brightness detection module adopts a brightness sensor.

4. A cockpit display screen brightness alignment calibration system as claimed in claim 1, characterized in that: The calibration module adopts a brightness calibration station.

5. A cabin display screen brightness alignment calibration system as claimed in claim 3 or 4, characterized in that: The output end of the brightness sensor is connected to the input end of the brightness calibration station through a bus.

6. A method for calibrating the brightness alignment of a cockpit display screen according to any one of claims 1 to 5, characterized in that: Step 1: The brightness detection module detects the maximum brightness of the cockpit display screen; Step 2: If the maximum brightness of the cockpit display is within the set range, no adjustment is made; if the maximum brightness of the cockpit display is not within the set range, the calibration module calculates the adjustment coefficient of the working current of the backlight beads of the cockpit display; Step 3: If the adjustment coefficient is not within the coefficient range, the adjustment fails; if the adjustment coefficient is within the range, the calibration module adjusts the operating current of the backlight beads of the cockpit display according to the adjustment coefficient and repeats the operation from step 1.

7. A method for calibrating cabin display screen brightness alignment according to claim 6, characterized in that: In step 1, the brightness of the cockpit display screen is set to maximum before calibration, and the brightness sensor detects the maximum brightness of the cockpit display screen and inputs the brightness information into the calibration module.

8. A method for calibrating cabin display screen brightness alignment according to claim 6, characterized in that: In step 2, when the maximum brightness of the cockpit display screen is greater than the maximum range value of the set range, the adjustment coefficient of the working current of the backlight lamp beads of the cockpit display screen is the ratio of the maximum range value to the maximum brightness of the cockpit display screen; When the brightness of the cockpit display screen is less than the minimum range value of the set range, the adjustment coefficient of the working current of the backlight beads of the cockpit display screen is the ratio of the minimum range value to the maximum brightness of the cockpit display screen.

9. A method for calibrating cabin display screen brightness alignment according to claim 6, characterized in that: In step three, the brightness calibration station adjusts the operating current of the backlight beads of the cockpit display according to the adjustment coefficient.

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