Blue light prevention processing method, blue light prevention processing device and display device

Abstract

The present application relates to a kind of anti-blue light processing method, anti-blue light processing equipment and display device.The present application receives first signal source, and the gray scale of first blue subpixel in first signal source is divided into at least two gray scale levels;First debug compensation value of first blue subpixel at different gray scale levels is obtained;Second signal source is received, and the corresponding first debug compensation value is called according to the gray scale level of second blue subpixel in second signal source, the first debug compensation value called is used to calibrate second blue subpixel, and the data after calibration is output, so that different calibration operations can be carried out on the second blue subpixel of different gray scale levels, to avoid the color deviation problem when the same processing operation is used to filter different levels of blue light, and then the color accuracy of display picture under different gray scale levels of display device reaches consistent effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the display technical field, and in particular to a blue light prevention processing method, a blue light prevention processing device and a display device. BACKGROUND

[0002] Liquid Crystal Display (LCD) is a kind of display device which uses liquid crystal material as basic component, fills liquid crystal material between two parallel plates, changes the arrangement of liquid crystal material by voltage to achieve the purpose of light blocking and light transmission, and displays images with different depths and well-distributed arrangement. In addition, color image display can be realized by adding a filter layer of three primary colors between the two plates.

[0003] The backlight source of the liquid crystal display is mostly LED backlight source, and the high-energy short-wave blue light in the LED backlight source can seriously threaten the health of eyes. Therefore, customers now prefer to choose products with blue light prevention function. Software blue light prevention is a low-cost way to reduce blue light, and software is used to control the blue light content of RGB channel so that the blue light of all wave bands is reduced. However, when filtering blue light of different levels, if the back-end processing operation is the same, the display will see different degrees of color cast at different stages. SUMMARY

[0004] The purpose of the present application is to provide a blue light prevention processing method, a blue light prevention processing device and a display device, which can solve the color cast problem caused by the same processing operation of software when filtering blue light of different levels in the prior art.

[0005] In order to solve the above problems, the present application provides a blue light prevention processing method, which comprises: receiving a first signal source, dividing the gray scale of a first blue sub-pixel in the first signal source into at least two gray scale levels; obtaining a first debugging compensation value of the first blue sub-pixel at different gray scale levels; receiving a second signal source, calling a corresponding first debugging compensation value according to the gray scale level of a second blue sub-pixel in the second signal source, calibrating the second blue sub-pixel by using the called first debugging compensation value, and outputting the calibrated data.

[0006] Further, the step of dividing the gray scale of the first blue sub-pixel in the first signal source into at least two gray scale levels comprises: dividing the gray scale of the first blue sub-pixel into four gray scale levels, and the ranges of the four gray scale levels are 0-255, 256-511, 512-767 and 768-1023 respectively.

[0007] Further, the step of obtaining the first debug compensation value of the first blue sub-pixel at different gray scale levels comprises: filtering the blue light of the first blue sub-pixel; and performing colorimetric debugging on the filtered first blue sub-pixel at different gray scale levels respectively to obtain the first debug compensation value of the first blue sub-pixel at different gray scale levels.

[0008] Further, the step of filtering the blue light of the first blue sub-pixel comprises: reducing the brightness of the first blue sub-pixel to filter the blue light of the first blue sub-pixel.

[0009] Further, the anti-blue light processing method further comprises: performing colorimetric debugging on a first red sub-pixel and a first green sub-pixel in the first signal source at different gray scale levels respectively to obtain second debug compensation values and third debug compensation values corresponding to different gray scale levels of the first red sub-pixel and the first green sub-pixel respectively; and calling the corresponding second debug compensation value and the third debug compensation value according to the gray scale level of the second blue sub-pixel, and calibrating a second red sub-pixel and a second green sub-pixel in the second signal source by using the called second debug compensation value and the third debug compensation value respectively, and outputting the calibrated data.

[0010] To solve the above problems, the present application provides an anti-blue light processing device suitable for the anti-blue light processing method of the present application; the anti-blue light processing device comprises: a system chip, a timing controller and an integrated circuit bus; the system chip is connected to the integrated circuit bus, and the integrated circuit bus is connected to the timing controller.

[0011] Further, the system chip is configured to receive a first signal source and divide the gray scale of a first blue sub-pixel in the first signal source into at least two gray scale levels; the system chip is configured to obtain a first debug compensation value of the first blue sub-pixel at different gray scale levels; the timing controller is configured to store the first debug compensation value of the first blue sub-pixel at different gray scale levels; the system chip is configured to receive a second signal source and call the corresponding first debug compensation value in the timing controller according to the gray scale level of a second blue sub-pixel in the second signal source through the integrated circuit bus, calibrate the second blue sub-pixel by using the called first debug compensation value, and output the calibrated data.

[0012] Further, the system chip is configured to filter the blue light of the first blue sub-pixel, and the system chip is configured to perform colorimetric debugging on the filtered first blue sub-pixel at different gray scale levels respectively to obtain the first debug compensation value of the first blue sub-pixel at different gray scale levels.

[0013] Further, the system chip is further used for carrying out colorimetric adjustment on the first red sub-pixel and the first green sub-pixel in the first signal source respectively at different gray scale levels to obtain second adjustment compensation values and third adjustment compensation values corresponding to the first red sub-pixel and the first green sub-pixel at different gray scale levels respectively; the timing controller is further used for storing the second adjustment compensation values and the third adjustment compensation values corresponding to the first red sub-pixel and the first green sub-pixel at different gray scale levels; the system chip is further used for calling the corresponding second adjustment compensation values and third adjustment compensation values in the timing controller according to the gray scale level of the second blue sub-pixel through the integrated circuit bus, and calibrating the second red sub-pixel and the second green sub-pixel in the second signal source by using the called second adjustment compensation values and third adjustment compensation values respectively, and outputting calibrated data.

[0014] To solve the above problems, the application provides a display device comprising the anti-blue light processing equipment.

[0015] The application has the advantage that: the application calls the corresponding first adjustment compensation value according to the gray scale level of the second blue sub-pixel in the second signal source, calibrates the second blue sub-pixel by using the called first adjustment compensation value, and outputs calibrated data, so that different calibration operations can be performed on the second blue sub-pixels of different gray scale levels, the color deviation problem caused by filtering blue light of different levels by using the same processing operation is avoided, and the colorimetric consistency of the display picture of the display device under different gray scale levels is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a schematic diagram of the anti-blue light processing method of embodiment 1 of the present application;

[0018] Figure 2 is a schematic diagram of the anti-blue light processing equipment of embodiment 1 of the present application;

[0019] Figure 3 is a schematic diagram of the anti-blue light processing equipment of embodiment 2 of the present application.

[0020] Explanation of reference signs:

[0021] 1, system chip; 2, integrated circuit bus;

[0022] 3. A timing controller. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present application will be described herein below with reference to the accompanying drawings, in order to give those skilled in the art a complete understanding of the technical contents of the present application, to demonstrate by way of example that the present application can be implemented, to make the technical contents disclosed by the present application more clear, and to make those skilled in the art more easily understand how to implement the present application. However, the present application can be embodied in many different forms of embodiments, and the protection scope of the present application is not limited to only the embodiments mentioned herein, and the description of the embodiments below is not used to limit the scope of the present application.

[0024] The directional terms mentioned in the present application, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc., are only the directions in the drawings, and the directional terms used herein are used to explain and describe the present application, and are not used to limit the protection scope of the present application.

[0025] In the drawings, the same components have the same reference numerals, and components having similar structures or functions are denoted by similar reference numerals. In addition, in order to facilitate understanding and description, the size and thickness of each component shown in the drawings are arbitrarily shown, and the present application does not limit the size and thickness of each component.

[0026] Embodiment 1

[0027] As shown in the embodiment, a blue light prevention processing method is provided, which comprises: S1, receiving a first signal source, and dividing the gray scale of a first blue sub-pixel in the first signal source into at least two gray scale levels; S2, obtaining a first debugging compensation value of the first blue sub-pixel at different gray scale levels; S3, receiving a second signal source, calling a corresponding first debugging compensation value according to the gray scale level of a second blue sub-pixel in the second signal source, calibrating the second blue sub-pixel by using the called first debugging compensation value, and outputting the calibrated data. Figure 1

[0028] Among them, the first signal source is a data source received by colorimetric debugging, and the second signal source is a data source that needs to be calibrated in actual application.

[0029] Among them, S1 comprises: dividing the gray scale of the first blue sub-pixel into four gray scale levels, and the ranges of the four gray scale levels are 0-255, 256-511, 512-767 and 768-1023. It is worth noting that the division of the gray scale of the first blue sub-pixel into four gray scale levels here is to divide the gray scale of each blue sub-pixel into levels, not to divide the average gray scale of the blue sub-pixels of an entire frame of picture into levels.

[0030] ​The S2 comprises: filtering the blue light of the first blue sub-pixel; and adjusting the color shade of the filtered first blue sub-pixel at different gray scale levels to obtain the first adjustment compensation value of the first blue sub-pixel at different gray scale levels. It is worth noting that the color shade of the filtered first blue sub-pixel at different gray scale levels is adjusted respectively, and not the entire frame of picture.

[0031] The step of filtering the blue light of the first blue sub-pixel comprises: reducing the brightness of the first blue sub-pixel to filter the blue light of the first blue sub-pixel. In this embodiment, the brightness of the first blue sub-pixel is reduced by 10% to partially filter the blue light of the first blue sub-pixel.

[0032] In the S3, the first adjustment compensation value is called according to the gray scale level of the second blue sub-pixel in the second signal source, which means that the first adjustment compensation value is called according to the gray scale level of each second blue sub-pixel in the second signal source, and not the average gray scale of the second blue sub-pixel of the entire frame of picture.

[0033] In this embodiment, the first adjustment compensation value is called according to the gray scale level of the second blue sub-pixel in the second signal source, and the second blue sub-pixel is calibrated by using the called first adjustment compensation value, and the calibrated data is output, so that different calibration operations can be performed on the second blue sub-pixel at different gray scale levels, the color deviation problem caused by filtering the blue light at different levels by using the same processing operation can be avoided, and the color shade of the display picture at different gray scale levels of the display device can be consistent.

[0034] As shown in Figure 2 The embodiment also provides a blue light prevention processing device suitable for the blue light prevention processing method. The blue light prevention processing device comprises a system chip 1, a timing controller 3 and an integrated circuit bus 2.

[0035] The system chip 1 (System on Chip, SoC) is connected to the integrated circuit bus 2 (Inter-Integrated Circuit, IIC). Specifically, the system chip 1 is in communication connection with the integrated circuit bus 2.

[0036] The integrated circuit bus 2 is connected to the timing controller 3 (Timing Controller, TCON). Specifically, the integrated circuit bus 2 is in communication connection with the timing controller 3.

[0037] Specifically, the system chip 1 is used to receive a first signal source and divide the grayscale of the first blue sub-pixel in the first signal source into at least two grayscale levels; the system chip 1 is used to filter the blue light of the first blue sub-pixel; the system chip 1 is used to perform color accuracy adjustment on the filtered first blue sub-pixel at different grayscale levels to obtain first adjustment compensation values ​​of the first blue sub-pixel at different grayscale levels; the timing controller 3 is used to store the first adjustment compensation values ​​of the first blue sub-pixel at different grayscale levels; the system chip 1 is used to receive a second signal source and call the corresponding first adjustment compensation value in the timing controller 3 through the integrated circuit bus 2 according to the grayscale level of the second blue sub-pixel in the second signal source, calibrate the second blue sub-pixel using the called first adjustment compensation value, and output the calibrated data.

[0038] The anti-blue light processing device of this embodiment calls the corresponding first debugging compensation value according to the grayscale level of the second blue sub-pixel in the second signal source, calibrates the second blue sub-pixel using the called first debugging compensation value, and outputs the calibrated data. In this way, different calibration operations can be performed on the second blue sub-pixels of different grayscale levels, avoiding the color deviation problem that occurs when using the same processing operation to filter different levels of blue light, thereby achieving consistent color accuracy of the display screen of the display device at different grayscale levels.

[0039] Example 2

[0040] like Figure 3 As shown, this embodiment includes most of the technical features of Example 1. The difference between this embodiment and Example 1 is that: in this embodiment, the anti-blue light processing method also includes: color accuracy debugging of the first red sub-pixel and the first green sub-pixel in the first signal source at different grayscale levels, respectively, to obtain the second debugging compensation value and the third debugging compensation value corresponding to the first red sub-pixel and the first green sub-pixel at different grayscale levels; according to the grayscale level of the second blue sub-pixel in the second signal source, the corresponding second debugging compensation value and the third debugging compensation value are called, and the second red sub-pixel and the second green sub-pixel in the second signal source are calibrated respectively using the called second debugging compensation value and the third debugging compensation value, and the calibrated data are output.

[0041] In this embodiment, not only the second blue sub-pixel is calibrated, but also the second red sub-pixel and the second blue sub-pixel are calibrated, thereby further achieving a consistent color accuracy of the display images of the display device at different grayscale levels.

[0042] The system chip 1 in the embodiment is also used for adjusting the colorimetric value of the first red sub-pixel and the first green sub-pixel in the first signal source at different gray scale levels respectively, and obtaining the second compensation value and the third compensation value corresponding to different gray scale levels of the first red sub-pixel and the first green sub-pixel respectively.

[0043] The timing controller in the embodiment is also used for storing the second compensation value and the third compensation value corresponding to different gray scale levels of the first red sub-pixel and the first green sub-pixel.

[0044] The system chip 1 in the embodiment is also used for calling the corresponding second compensation value and the third compensation value in the timing controller 3 according to the gray scale level of the second blue sub-pixel through the integrated circuit bus 2, calibrating the second red sub-pixel and the second green sub-pixel by using the called second compensation value and the third compensation value respectively, and outputting the calibrated data.

[0045] The anti-blue light processing device in the embodiment calls the corresponding first compensation value according to the gray scale level of the second blue sub-pixel in the second signal source, calibrates the second blue sub-pixel by using the called first compensation value, and outputs the calibrated data, so that different calibration operations can be performed on the second blue sub-pixels of different gray scale levels, the color deviation problem caused by filtering blue light of different levels by using the same processing operation can be avoided, and the colorimetric value of the display picture under different gray scale levels of the display device can be further made consistent.

[0046] The embodiment of the present application also provides a display device comprising the anti-blue light processing device in the above embodiment.

[0047] The anti-blue light processing method, the anti-blue light processing device and the display device provided in the present application are described in detail above, and the principles and implementation manners of the present application are described by using specific examples in the present application; the above embodiment is only used for helping to understand the method and the core idea of the present application; meanwhile, for those skilled in the art, the specific implementation manners and application ranges will be changed according to the idea of the present application; and the above description should not be understood as limiting the present application.

Claims

1. A blue light protection method, characterized in that: include: receiving a first signal source, the first signal source being a data source for color accuracy debugging, and dividing the grayscale of a first blue sub-pixel in the first signal source into at least two grayscale levels, wherein the grayscale levels are divided into levels based on the grayscale of each blue sub-pixel; Obtaining a first debugging compensation value of the first blue sub-pixel at different grayscale levels; as well as Receive a second signal source, which is a data source that needs to be calibrated in actual applications, call the corresponding first debugging compensation value according to the grayscale level of the second blue sub-pixel in the second signal source, calibrate the second blue sub-pixel using the called first debugging compensation value, and output the calibrated data.

2. The anti-blue light processing method according to claim 1, characterized in that: The step of dividing the grayscale of the first blue sub-pixel in the first signal source into at least two grayscale levels comprises: The grayscale of the first blue sub-pixel is divided into four grayscale levels, and the ranges of the four grayscale levels are 0-255, 256-511, 512-767 and 768-1023 respectively.

3. The anti-blue light processing method according to claim 1, characterized in that: The step of obtaining the first debugging compensation value of the first blue sub-pixel at different grayscale levels includes: filtering the blue light of the first blue sub-pixel; and The filtered first blue sub-pixel is color-calibrated at different grayscale levels to obtain the first calibration compensation values ​​of the first blue sub-pixel at different grayscale levels.

4. The anti-blue light processing method according to claim 3, characterized in that: The step of filtering the blue light of the first blue sub-pixel comprises: The brightness of the first blue sub-pixel is reduced to filter the blue light of the first blue sub-pixel.

5. The anti-blue light processing method according to claim 1, characterized in that: The anti-blue light processing method further includes: Performing color accuracy adjustment on the first red sub-pixel and the first green sub-pixel in the first signal source at different grayscale levels, respectively, to obtain second adjustment compensation values ​​and third adjustment compensation values ​​of the first red sub-pixel and the first green sub-pixel corresponding to the different grayscale levels; and The second debugging compensation value and the third debugging compensation value corresponding to the grayscale level of the second blue sub-pixel are called, and the second red sub-pixel and the second green sub-pixel in the second signal source are calibrated respectively using the called second debugging compensation value and the third debugging compensation value, and the calibrated data is output.

6. A blue light protection device, characterized in that: The anti-blue light treatment method according to any one of claims 1 to 5; The anti-blue light processing device includes: a system chip, a timing controller and an integrated circuit bus; The system chip is connected to the integrated circuit bus, and the integrated circuit bus is connected to the timing controller.

7. The anti-blue light processing device according to claim 6, characterized in that: The system chip is used to receive a first signal source and divide the grayscale of the first blue sub-pixel in the first signal source into at least two grayscale levels; The system chip is used to obtain a first debugging compensation value of the first blue sub-pixel at different grayscale levels; The timing controller is used to store the first debugging compensation value of the first blue sub-pixel at different grayscale levels; The system chip is used to receive a second signal source, and call the corresponding first debugging compensation value in the timing controller through the integrated circuit bus according to the grayscale level of the second blue sub-pixel in the second signal source, calibrate the second blue sub-pixel using the called first debugging compensation value, and output the calibrated data.

8. The anti-blue light processing device according to claim 7, characterized in that: The system chip is used to filter the blue light of the first blue sub-pixel, and the system chip is used to perform color accuracy adjustment on the filtered first blue sub-pixel at different grayscale levels to obtain first adjustment compensation values ​​of the first blue sub-pixel at different grayscale levels.

9. The anti-blue light processing device according to claim 7, characterized in that: The system chip is further configured to perform color accuracy adjustment on the first red sub-pixel and the first green sub-pixel in the first signal source at different grayscale levels, respectively, to obtain second adjustment compensation values ​​and third adjustment compensation values ​​corresponding to the first red sub-pixel and the first green sub-pixel at different grayscale levels, respectively; The timing controller is further used to store the second debugging compensation value and the third debugging compensation value corresponding to the first red sub-pixel and the first green sub-pixel at different grayscale levels; the system chip is further used to call the corresponding second debugging compensation value and the third debugging compensation value in the timing controller through the integrated circuit bus according to the grayscale level of the second blue sub-pixel, and use the called second debugging compensation value and the third debugging compensation value to calibrate the second red sub-pixel and the second green sub-pixel in the second signal source respectively, and output the calibrated data.

10. A display device, characterized in that: Includes the anti-blue light processing equipment described in any one of claims 7-9.

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