An automatic detection and calibration system for a display

Abstract

The present invention discloses an automatic detection and calibration system for a display, comprising: a display screen of the display, a display screen detection and sensing module, a USB conversion module, a verification control module, a main control single-chip microcomputer of the display, a video processing module, and a data storage module; the display screen is connected to the display screen detection and sensing module; the present invention enables the display to perform self-check and self-verification regularly, reduces manual labor, securely stores the verified data, and avoids being attacked by computer viruses.

Description

Technical Field

[0001] The present invention relates to the field of display technologies, and particularly to an automatic detection and calibration system for a display. Background Art

[0002] In recent years, as the market requirements for display detection and calibration have become increasingly strict, how to maintain accurate calibration of the color and brightness of a display after it leaves the factory and is in use has been a research topic in this field. This is especially true for professional displays with high requirements for display color, brightness, and color depth, such as photographic displays, medical displays, and printing professional displays.

[0003] Among them, the gamma value is represented by a curve, which is a curve of the human eye's response to light and includes physical quantities, physiological sensations, and psychological perceptions. In terms of physical quantities, it is a relatively simple brightness unit, but physiologically, it varies from person to person. The same image seen by young people, middle-aged people, elderly people, Orientals, and Westerners will be different, and the corresponding curves will also be different. The human eye's response curve to light is a non-linear curve, and the three light-emitting bodies RGB on our display also respectively induce three different curves. Due to the differences in doctors' physiology and usage environments, there are special requirements for the gamma curve. Color accuracy is also a key parameter for professional displays. Due to the inherent reasons of display components, after being used for a period of time, there are deviations in color, brightness, and gamma curves. To ensure accurate color, consistent brightness, and stable gamma curves of the display, the display needs to periodically check and calibrate the color, brightness, and gamma curves of the display. Summary of the Invention

[0004] The present invention aims to solve the problem of periodically detecting and calibrating a display, and can save the calibrated data to the memory of the display, and provides an automatic detection and calibration system for a display.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An automatic detection and calibration system for a display, comprising: a display screen, a display screen detection and sensing module, a USB conversion module, a calibration control module, a main control single-chip microcomputer of the display, a video processing module, and a data storage module; the display screen is connected to the display screen detection and sensing module, the display screen detection and sensing module can detect and collect the color and brightness data of the display screen and is respectively connected and communicated with the calibration control module, the main control single-chip microcomputer of the display, and the video processing module through the USB conversion module, the calibration control module is connected to and controls the main control single-chip microcomputer of the display and the video processing module, the main control single-chip microcomputer of the display and the video processing module are connected to and control the display screen, and the main control single-chip microcomputer of the display is connected and communicated with the data storage module.

[0007] Further, the display screen detection and sensing module collects the color, brightness, gamma, and DICOM data of the display screen of the monitor.

[0008] Further, the display screen detection and sensing module, the USB conversion module, the main control single-chip microcomputer of the monitor, and the video processing module are respectively provided with I2C communication modules, and data communication connections are made through the I2C communication modules.

[0009] Further, the USB conversion module is also provided with a USB interface, and the monitor is connected to the verification control module through the USB interface.

[0010] Further, the verification control module can be set on the monitor or on an external computer device.

[0011] Further, the verification control module can be an application software installed on the computer host.

[0012] Further, the data stored in the data storage module includes color, brightness, gamma, and DICOM data.

[0013] Further, the main control single-chip microcomputer of the monitor can calibrate the parameter data of the display screen of the monitor through the video processing module by calling the data on the data storage module.

[0014] Compared with the prior art, by designing a new structure of a display screen detection and sensing module, a USB conversion module, a verification control module, and a data storage module for the monitor, the present invention enables the monitor to perform regular self-checking and self-verification, reduces manual labor, securely stores the verified data, and avoids being attacked by computer viruses. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings.

[0016] Figure 1 is a structural block diagram of an automatic detection and calibration system for a monitor proposed by the present invention;

[0017] Figure 2 is a schematic diagram of a display screen detection and sensing module of an automatic detection and calibration system for a monitor proposed by the present invention;

[0018] Figure 3 is a schematic diagram of a circuit structure of a USB conversion module of an automatic detection and calibration system for a monitor proposed by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the present invention with reference to the accompanying drawings and specific embodiments.

[0020] As Figures 1 to 3 shown, an automatic detection and calibration system for a display of the present invention includes: a display screen of the display, a display screen detection and sensing module, a USB conversion module, a verification control module, a main control single-chip microcomputer of the display, a video processing module, and a data storage module; the display screen of the display is connected to the display screen detection and sensing module, and the display screen detection and sensing module can detect and collect color and brightness data of the display screen of the display and is respectively connected and communicated with the verification control module, the main control single-chip microcomputer of the display, and the video processing module through the USB conversion module. The verification control module is connected to and controls the main control single-chip microcomputer of the display and the video processing module. The main control single-chip microcomputer of the display and the video processing module are connected to and control the display screen of the display, and the main control single-chip microcomputer of the display is connected and communicated with the data storage module. The display screen detection and sensing module collects color, brightness, gamma, and DICOM data of the display screen of the display. The display screen detection and sensing module, the USB conversion module, the main control single-chip microcomputer of the display, and the video processing module are respectively provided with I2C communication modules, and I2C protocol bus data communication is performed through the I2C communication modules. The USB conversion module is further provided with a USB interface, and the display is connected to the verification control module through the USB interface. The verification control module can be set on the display or on an external computer device. The verification control module can be an application software installed on a computer host. The data storage module stores data such as color, brightness, gamma, and DICOM data. The main control single-chip microcomputer of the display can calibrate the parameter data of the display screen through the video processing module by calling the data on the data storage module.

[0021] Specific working principle of the present invention: When the user clicks to start verification, the display can automatically detect and verify (the user can set the period for automatically detecting and verifying the display regularly according to needs). The steps of gamma 2.2 calibration are:

[0022] a. Start -> The verification control module sends an instruction to the main control single-chip microcomputer of the display to notify the video processing module to adjust the gamma parameter of the display screen to gamma 1.0 (the gamma of the gamma 1.0 display has not been corrected for gamma data, and the purpose is to sample the original display screen gamma data), and adjust the brightness of the display screen to a typical value.

[0023] b. The verification control module sends red 0 image data (0 gray level) to make the computer graphics card output a red 0 image (0 gray level) -> Make the red 0 image be displayed on the display screen of the display after passing through the display.

[0024] c. The verification control module sends a read instruction to read the color and brightness values of the image from the display screen detection and sensing module and save them in the memory.

[0025] d. The verification control module sends the red 1 image data to make the computer graphics card output the red 1 image -> The red 1 image is displayed on the display screen of the monitor after passing through the display of the monitor, and the image of red 1 is displayed on the monitor screen.

[0026] e. The verification control module sends a read instruction to read the color and brightness values of the image from the display detection sensor module and stores them in the computer memory. In the same way, the computer can sample the red data from 0 to 255, the green data from 0 to 255, the blue data from 0 to 255, and the white data from 0 to 255.

[0027] After sampling the original characteristics of the display screen of the monitor, the original data is compared with the curve data of the standard gamma 2.2, and the actually verified data is calculated, and then the data is saved to the data storage module of the monitor.

[0028] In the same way, the verification control module can calculate different calibrated gamma curve data and DICOM curve data, and then save them to the data storage module of the monitor.

[0029] The steps for calibrating the typical brightness and color temperature are as follows:

[0030] Set a reasonable brightness value. The verification control module sends an instruction to make the computer graphics card output white with a value of 255 -> The monitor displays the white image with a value of 255 -> The verification control module sends an instruction to read the actual brightness from the display detection sensor module of the display screen, and then compares the read brightness with the set brightness to be adjusted. If the actual brightness value is greater than the set brightness, the verification control module sends an instruction to the main control single-chip microcomputer of the monitor and the video processing module to reduce the brightness of the monitor. After multiple adjustments, the set brightness can be achieved. The adjustment of the color temperature is the same. The verification control module can be set on the verification control module.

[0031] The user can also set regular automatic inspection and debugging. First, inspect and then debug. When the parameters of the monitor do not change much, only inspect and do not adjust. Both inspection and adjustment can generate inspection reports, so that professional users do not have to worry about the changes in the brightness, color, gamma, and DICOM data of the monitor.

[0032] After considering the specification and practicing the invention disclosed herein, those skilled in the art will readily think of other embodiments of the present disclosure. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include the common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the claims.

[0033] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. An automatic detection and calibration system for a display, characterized in that, Including: A display screen, a display screen detection and sensing module, a USB conversion module, a verification control module, a main control single-chip microcomputer of the display, a video processing module, and a data storage module; The display screen is connected to the display screen detection and sensing module. The display screen detection and sensing module is used to detect and collect the color and brightness data of the display screen and is respectively connected and communicated with the verification control module, the main control single-chip microcomputer of the display, and the video processing module through the USB conversion module. The verification control module is connected to and controls the main control single-chip microcomputer of the display and the video processing module. The main control single-chip microcomputer of the display and the video processing module are connected to and control the display screen. The main control single-chip microcomputer of the display is connected and communicated with the data storage module; The data stored in the data storage module includes color, brightness, gamma, and DICOM data; The main control single-chip microcomputer of the display calibrates the parameter data of the display screen through the video processing module by calling the data on the data storage module; The steps of gamma calibration are as follows: The verification control module sends an instruction to the main control single-chip microcomputer of the display to notify the video processing module to adjust the gamma parameter of the display screen to gamma 1.0 and adjust the brightness of the display screen to the typical value; The verification control module sends red 0 image data to make the computer graphics card output a red 0 image. The red 0 image is displayed on the display screen after passing through the display, showing a red 0 image on the display screen; The verification control module sends an instruction to read the color and brightness values of the image from the display screen detection and sensing module and save them in the memory; The verification control module sends red 1 image data to make the computer graphics card output a red 1 image. The red 1 image is displayed on the display screen after passing through the display, showing a red 1 image on the display screen; The verification control module sends a read instruction to read the color and brightness values of the image from the display screen detection and sensing module and save them in the computer memory; Sample the red data from 0 to 255, the green data from 0 to 255, the blue data from 0 to 255, and the white data from 0 to 255 in sequence; After sampling the original characteristics of the display screen, compare the original data with the curve data of the standard gamma 2.2, calculate the actual verified data, and then save the data to the data storage module of the display; The verification control module is used to calculate different calibrated gamma curve data and DICOM curve data, and then save them to the data storage module of the display; The steps of brightness / color temperature calibration are as follows: Set a reasonable brightness value / color temperature. The verification control module sends an instruction to make the computer graphics card output white with a value of 255. The display screen displays a white image with a value of 255. The verification control module sends an instruction to read the actual brightness or color temperature from the display screen detection and sensing module, and then compare the read brightness / color temperature with the adjusted set brightness / color temperature. If the actual brightness / color temperature value is greater than the set brightness / color temperature, the verification control module sends an instruction to the main control single-chip microcomputer of the display and the video processing module to reduce the brightness / color temperature of the display. After multiple adjustments, the set brightness / color temperature is reached; The user can set regular automatic inspection and debugging, with inspection first and then debugging, and both inspection and adjustment can generate inspection reports.

2. The automatic detection and calibration system for a display according to claim 1, characterized in that, The display screen detection and sensing module collects the color, brightness, gamma, and DICOM data of the display screen of the monitor.

3. The automatic detection and calibration system for a display according to claim 1, characterized in that, The display screen detection and sensing module, the USB conversion module, the monitor main control single-chip microcomputer, and the video processing module are respectively provided with I2C communication modules and are connected for data communication through the I2C communication modules.

4. The automatic detection and calibration system for a display according to claim 3, characterized in that, The USB conversion module is also provided with a USB interface, and the monitor is connected to the calibration control module through the USB interface.

5. The automatic detection and calibration system for a display according to claim 4, characterized in that, The calibration control module can be set on the monitor or on an external computer device.

6. The automatic detection and calibration system for a display according to claim 5, characterized in that, The calibration control module is an application software installed on the computer host.

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