CN105679221B - Detection method and detection device for chromatic aberration and terminal - Google Patents

Abstract

The embodiment of the present invention discloses a method for detecting color difference, including: dividing a display screen into a plurality of unit display areas; displaying the same calibration picture in each of the unit display areas; obtaining photos of each of the unit display areas through a shooting device, and obtaining a preset reference photo of the display screen when the calibration picture is displayed in full screen; and detecting the unit display area with color difference by comparing the photos of each of the unit display areas with the reference photo. Correspondingly, the embodiment of the present invention also discloses a device and terminal for detecting color difference. By adopting the present invention, it is possible to detect the area with color difference in the display screen.

Description

Color difference detection method, detection device and terminal

technical field

The invention relates to the technical field of computers, and in particular, to a color difference detection method, a detection device and a terminal.

Background technique

An OLED (Organic Light-Emitting Diode, organic electric laser display) display is a display screen composed of organic light-emitting materials, which can emit colored light when powered on. In view of the advantages of thin and light, large viewing angle and low power consumption, OLED displays are widely used in terminals such as smartphones. It should be pointed out that since the organic light-emitting material in the OLED display screen is self-luminous, the light-emitting process will be accompanied by consumption of the organic light-emitting material, and the consumption cannot be recovered.

It should be understood that the consumption of organic light-emitting materials is different for different display brightness and different display colors. In the process of displaying the screen on the display screen of a terminal such as a smartphone, due to the complexity of the screen composition, some areas will inevitably have dark brightness, some areas will be light in brightness, or some areas will display more of one color, and some areas will display another color. There are many colors of one kind, which leads to different consumption of organic light-emitting materials in different areas. As time goes by, the display color difference of the display screen is finally caused, that is, the picture with the same brightness cannot be displayed. At present, how to detect the area with chromatic aberration in the display screen is an urgent problem to be solved.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a color difference detection method, a detection device, and a terminal, which can detect an area with color difference in a display screen.

A first aspect of the embodiments of the present invention provides a method for detecting color difference, including:

Divide the display into multiple unit display areas;

Display the same calibration picture in each of the unit display areas;

Obtaining photos of each of the unit display areas through a photographing device, and obtaining a preset reference photo of the display screen when the calibration picture is displayed in full screen;

By comparing the photos of each of the unit display areas with the reference photos, a unit display area with a color difference is detected.

In a first possible implementation manner of the first aspect, the unit display area with color difference is detected by comparing the photos of each unit display area with the reference photo, including:

When the luminance difference between the reference photo and any photo in the unit display area is greater than a preset threshold, it is determined that the unit display area is a unit display area with color difference.

In a second possible implementation manner of the first aspect, after the unit display area with chromatic aberration is detected by comparing the photos of each of the unit display areas with the reference photos, the method further includes:

Perform luminance compensation on the unit display area with chromatic aberration.

In combination with the second possible implementation manner of the first aspect, in a third possible implementation manner, the performing luminance compensation on the unit display area with chromatic aberration includes:

According to the luminance difference between the reference photo and the photo in the unit display area with color difference, the luminance of the unit display area with color difference is increased.

With reference to the first aspect or the second to third possible implementation manners of the first aspect, in a fourth possible implementation manner, the acquiring a photo of each of the unit display areas by a photographing device includes:

Take pictures of each of the unit display areas through the built-in camera; or

A photo of each of the unit display areas taken by the external photographing device and sent by the external photographing device is received.

A second aspect of the embodiments of the present invention provides a color difference detection device, including:

The area division module is used to divide the display screen into multiple unit display areas;

The picture display module is used to display the same calibration picture in each of the unit display areas;

A photo acquisition module, configured to acquire photos of each of the unit display areas through a photographing device, and acquire a preset reference photo of the display screen when the calibration picture is displayed in full screen;

The color difference determination module is configured to detect the unit display area with color difference by comparing the photos of each of the unit display areas with the reference photos respectively.

In a first possible implementation manner of the second aspect, the color difference determination module is specifically configured to determine the color difference when the luminance difference between the reference photo and any photo in the unit display area is greater than a preset threshold The unit display area is the unit display area with color difference.

In a second possible implementation manner of the second aspect, the apparatus further includes:

A brightness compensation module, configured to perform brightness compensation on the unit display area with chromatic aberration.

In combination with the second possible implementation manner of the second aspect, in a third possible implementation manner, the brightness compensation module is specifically configured to determine the brightness difference value between the reference photo and the photo in the unit display area with color difference , to increase the brightness of the unit display area with chromatic aberration.

In combination with the second aspect or the second to third possible implementation manners of the second aspect, in a fourth possible implementation manner, the photo acquisition module is specifically used for:

Take pictures of each of the unit display areas through the built-in camera; or

A photo of each of the unit display areas taken by the external photographing device and sent by the external photographing device is received.

A third aspect of the embodiments of the present invention provides a terminal, including a display unit, a memory, and a processor, wherein a group of programs is stored in the memory, and the processor is configured to call the programs stored in the memory, and perform the following operations:

Divide the display into multiple unit display areas;

Display the same calibration picture in each of the unit display areas;

Obtaining photos of each of the unit display areas through a photographing device, and obtaining a preset reference photo of the display screen when the calibration picture is displayed in full screen;

By comparing the photos of each of the unit display areas with the reference photos, a unit display area with a color difference is detected.

As can be seen from the above, in the embodiment of the present invention, the display screen is first divided into a plurality of unit display areas, and then the same calibration picture is displayed in each unit display area, and then the photograph of each unit display area is obtained through the photographing device, and the pre- The set display screen displays the reference photo of the calibration picture in full screen, and then by comparing the photos of each unit display area with the reference photo, the unit display area with color difference is detected, so as to detect the area with color difference in the display screen. .

Description of drawings

In order to illustrate the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a schematic flowchart of a method for detecting a color difference provided by an embodiment of the present invention;

2 is a schematic flowchart of another method for detecting chromatic aberration provided by an embodiment of the present invention;

3 is a schematic structural diagram of a chromatic aberration detection device provided by an embodiment of the present invention;

4 is a schematic structural diagram of a terminal provided by an embodiment of the present invention;

FIG. 5 is a schematic diagram of a display screen area division provided by an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The chromatic aberration detection method provided by the embodiment of the present invention is applied to a terminal, and the terminal includes electronic equipment such as a smart phone, a tablet computer, a smart wearable device, a digital audio and video player, an electronic reader, a handheld game console, and an in-vehicle electronic device. In the embodiment of the present invention, the display screen configured by the terminal is an OLED display screen, and the OLED display screen is a display screen composed of organic light-emitting materials, wherein the organic light-emitting materials can emit colored light when powered on.

It should be understood that the consumption of organic light-emitting materials is different for different display brightness and different display colors. In the process of displaying the picture on the OLED display screen, due to the complexity of the picture composition, some areas will inevitably have dark brightness, some areas will be light in brightness, or some areas will display more of one color, and some areas will display more of another color. , resulting in different consumption of organic light-emitting materials in each area, and eventually resulting in a display color difference of the display screen, that is, a screen with the same brightness cannot be displayed.

FIG. 1 is a schematic flowchart of a method for detecting chromatic aberration in an embodiment of the present invention. As shown in the figure, the flow of the color difference detection method in this embodiment may include:

S101, dividing the display screen into a plurality of unit display areas.

Preferably, the terminal divides the display screen into a plurality of unit display areas in the form of a matrix array. The number of rows and columns of the matrix array may be preset by the equipment manufacturer, or may be preset by the user, which is not limited here. For example, please refer to Figure 5. As shown in the figure, the terminal can divide the display screen into 36 unit display areas in the form of a 6X6 matrix array.

It should be pointed out that the more divided unit display areas, the smaller the area of each unit display area, and the finer the detected color difference area.

Optionally, the terminal may also divide the unit display area in other forms, the shape of the divided unit display area is not limited to being rectangular, and the area of each unit display area is not limited to be equal, which is not exhaustive here.

S102, displaying the same calibration picture in each of the unit display areas.

Preferably, the calibration picture is a solid color picture. The reason is that the complexity of the solid color image is low, which is convenient for subsequent brightness comparison, and the solid color image will not be deformed by stretching or compression, ensuring the rationality of subsequent comparisons. For example, please refer to Figure 5. The terminal displays the same gray solid color picture in the 36 unit display areas.

It should be pointed out that when the terminal displays the preset calibration picture in each unit display area through the display screen, it should ensure that the brightness level of the current display screen is the preset brightness level, such as 60% brightness level.

S103: Acquire photos of each of the unit display areas through a photographing device, and acquire a preset reference photo of the display screen when the calibration picture is displayed on a full screen.

Optionally, the manner in which the terminal obtains the photos of each unit display area through the photographing device may be any of the following:

①Take photos of the display area of each unit through the built-in camera. For example, assuming that the camera that comes with the terminal is a rotatable camera, you can rotate the camera to point it at the display screen, and then take pictures of each unit display area. For another example, assuming that the display screen of the terminal is a flexible display screen, the display screen can be bent and placed in front of the built-in camera, and then photos of each unit display area can be taken.

②Receive the photos of each unit display area that it took from the external photographing device. In a specific implementation process, a communication connection is established between the terminal and an external photographing device in advance, and the external photographing device sends the photograph to the terminal through the communication connection after obtaining the photograph of each unit display area. The communication connection may be a wireless connection or a wired connection, which is not limited here.

The reference photo is obtained by displaying the calibration image in full screen on the display screen in advance, and the reference photo is saved in the terminal for subsequent recall at any time. The device obtains the photo at this time and saves it in the memory as a reference photo. It should be pointed out that when the terminal displays the calibration picture in full screen on the display screen, it should also ensure that the brightness level of the display screen is the preset brightness level.

S104, by comparing the photos of each of the unit display areas with the reference photos, respectively, to detect a unit display area with a color difference.

Specifically, the terminal first detects the brightness values of the reference photo and the photos in each unit display area, and then compares the brightness difference between the reference photo and the photos in each unit display area. When the brightness difference between the reference photo and the photo in any unit display area is When the value is greater than the preset threshold, it is determined that the unit display area is a unit display area with color difference. The preset threshold may be preset by a device manufacturer or preset by a user, which is not limited here.

For example: referring to Figure 5, it is assumed that the luminance value of the 1-21st, 23-36th unit display area is detected to be 8.32, the luminance value of the 22nd unit display area is 6.25, and the luminance value of the reference photo is 8.36, and The preset threshold is 2, then through analysis, it can be seen that only the brightness difference between the reference photo and the 22nd unit display area is greater than the preset threshold (2.07>2), so the terminal determines that the 22nd unit display area is a unit with color difference Display area.

Further, after detecting the unit display area with chromatic aberration, the terminal performs brightness compensation on the unit display area with chromatic aberration.

In the specific implementation process, the terminal increases the brightness of the unit display area with chromatic aberration according to the luminance difference between the reference picture and the picture in the unit display area with chromatic aberration. As an optional implementation manner, the terminal increases the brightness of a unit display area with a color difference until the brightness difference between the reference photo and the photo in the unit display area is less than a preset threshold. As another optional implementation manner, the terminal pre-establishes a corresponding relationship between the brightness difference value and the brightness enhancement level, and then can directly determine the brightness to be increased according to the brightness difference value. It should be pointed out that the way for the terminal to increase the brightness of the unit display area may be realized by increasing the drive current or drive voltage of the unit display area.

In the embodiment of the present invention, the display screen is first divided into a plurality of unit display areas, and then the same calibration picture is displayed in each unit display area, and then the photos of each unit display area are obtained by the photographing device, and the preset display screen is obtained. Display the reference photo of the calibration picture in the full screen, and then compare the photo of each unit display area with the reference photo to detect the unit display area with color difference, so as to detect the area with color difference in the display screen.

FIG. 2 is a schematic flowchart of another color difference detection method in an embodiment of the present invention. As shown in the figure, the flow of the color difference detection method in this embodiment may include:

S201, dividing the display screen into a plurality of unit display areas.

Preferably, the terminal divides the display screen into a plurality of unit display areas in the form of a matrix array. The number of rows and columns of the matrix array may be preset by the equipment manufacturer, or may be preset by the user, which is not limited here. For example, please refer to Figure 5. As shown in the figure, the terminal can divide the display screen into 36 unit display areas in the form of a 6X6 matrix array.

It should be pointed out that the more divided unit display areas, the smaller the area of each unit display area, and the finer the detected color difference area.

Optionally, the terminal may also divide the unit display area in other forms, the shape of the divided unit display area is not limited to being rectangular, and the area of each unit display area is not limited to be equal, which is not exhaustive here.

S202, displaying the same calibration picture in each of the unit display areas.

Preferably, the calibration picture is a solid color picture. The reason is that the complexity of the solid color image is low, which is convenient for subsequent brightness comparison, and the solid color image will not be deformed by stretching or compression, ensuring the rationality of subsequent comparisons. For example, please refer to Figure 5. The terminal displays the same gray solid color picture in the 36 unit display areas.

It should be pointed out that when the terminal displays the preset calibration picture in each unit display area through the display screen, it should ensure that the brightness level of the current display screen is the preset brightness level, such as 60% brightness level.

S203, obtaining photos of each of the unit display areas through a photographing device.

Optionally, the manner in which the terminal obtains the photos of each unit display area through the photographing device may be any of the following:

①Take photos of the display area of each unit through the built-in camera. For example, assuming that the camera that comes with the terminal is a rotatable camera, you can rotate the camera to point it at the display screen, and then take pictures of each unit display area. For another example, assuming that the display screen of the terminal is a flexible display screen, the display screen can be bent and placed in front of the built-in camera, and then photos of each unit display area can be taken.

②Receive the photos of each unit display area that it took from the external photographing device. In a specific implementation process, a communication connection is established between the terminal and an external photographing device in advance, and the external photographing device sends the photograph to the terminal through the communication connection after obtaining the photograph of each unit display area. The communication connection may be a wireless connection or a wired connection, which is not limited here.

S204: Acquire a preset reference photo of the display screen when the calibration picture is displayed in a full screen.

The reference photo is obtained by displaying the calibration image in full screen on the display screen in advance, and the reference photo is saved in the terminal for subsequent recall at any time. The device obtains the photo at this time and saves it in the memory as a reference photo. It should be pointed out that when the terminal displays the calibration picture in full screen on the display screen, it should also ensure that the brightness level of the display screen is the preset brightness level.

S205 , when the luminance difference between the reference photo and any photo in the unit display area is greater than a preset threshold, determine that the unit display area is a unit display area with color difference.

Specifically, the terminal first detects the brightness values of the reference photo and the photos in each unit display area, and then compares the brightness difference between the reference photo and the photos in each unit display area. When the brightness difference between the reference photo and the photo in any unit display area is When the value is greater than the preset threshold, it is determined that the unit display area is a unit display area with color difference. The preset threshold may be preset by a device manufacturer or preset by a user, which is not limited here.

For example: referring to Figure 5, it is assumed that the luminance value of the 1-21st, 23-36th unit display area is detected to be 8.32, the luminance value of the 22nd unit display area is 6.25, and the luminance value of the reference photo is 8.36, and The preset threshold is 2, then through analysis, it can be seen that only the brightness difference between the reference photo and the 22nd unit display area is greater than the preset threshold (2.07>2), so the terminal determines that the 22nd unit display area is a unit with color difference Display area.

S206: Perform luminance compensation on the unit display area with color difference.

Specifically, the terminal increases the brightness of the unit display area with chromatic aberration according to the luminance difference between the reference picture and the picture in the unit display area with chromatic aberration.

As an optional implementation manner, the terminal increases the brightness of a unit display area with a color difference until the brightness difference between the reference photo and the photo in the unit display area is less than a preset threshold.

As another optional implementation manner, the terminal pre-establishes a corresponding relationship between the brightness difference value and the brightness enhancement level, and then can directly determine the brightness to be increased according to the brightness difference value.

It should be pointed out that the way for the terminal to increase the brightness of the unit display area may be realized by increasing the drive current or drive voltage of the unit display area.

In the embodiment of the present invention, the display screen is first divided into a plurality of unit display areas, and then the same calibration picture is displayed in each unit display area, and then the photos of each unit display area are obtained by the photographing device, and the preset display screen is obtained. Display the reference photo of the calibration picture in the full screen, and then compare the photo of each unit display area with the reference photo to detect the unit display area with color difference, so as to detect the area with color difference in the display screen.

FIG. 3 is a schematic structural diagram of a chromatic aberration detection device in an embodiment of the present invention. As shown in the figure, the color difference detection device in the embodiment of the present invention may at least include a region division module 310, a picture display module 320, a photo acquisition module 330, and a color difference determination module 340, wherein:

The area dividing module 310 is used for dividing the display screen into a plurality of unit display areas.

Preferably, the area dividing module 310 divides the display screen into a plurality of unit display areas in the form of a matrix array. The number of rows and columns of the matrix array may be preset by the equipment manufacturer, or may be preset by the user, which is not limited here. For example, please refer to FIG. 5 , as shown in the figure, the area dividing module 310 can divide the display screen into 36 unit display areas in the form of a 6×6 matrix array.

It should be pointed out that the more divided unit display areas, the smaller the area of each unit display area, and the finer the detected color difference area.

Optionally, the area dividing module 310 can also divide the unit display area in other forms. The shape of the divided unit display area is not limited to being a rectangle, and the area of each unit display area is not limited to be equal, which is not limited here. lift.

The picture display module 320 is configured to display the same calibration picture in each of the unit display areas.

Preferably, the calibration picture is a solid color picture. The reason is that the complexity of the solid color image is low, which is convenient for subsequent brightness comparison, and the solid color image will not be deformed by stretching or compression, ensuring the rationality of subsequent comparisons. For example, please refer to FIG. 5 , the picture display module 320 displays the same gray solid color picture in the 36 unit display areas respectively.

It should be pointed out that when the picture display module 320 displays the preset calibration picture in each unit display area through the display screen, it should ensure that the brightness level of the current display screen is the preset brightness level, such as 60% brightness level.

The photo obtaining module 330 is configured to obtain photos of each of the unit display areas through a photographing device, and obtain a preset reference photo of the display screen when the calibration picture is displayed in full screen.

Optionally, the photo obtaining module 330 obtains the photos of each unit display area through the photographing device in any of the following manners:

①Take photos of the display area of each unit through the built-in camera. For example, assuming that the camera that comes with the terminal is a rotatable camera, you can rotate the camera to point it at the display screen, and then take pictures of each unit display area. For another example, assuming that the display screen of the terminal is a flexible display screen, the display screen can be bent and placed in front of the built-in camera, and then photos of each unit display area can be taken.

②Receive the photos of each unit display area that it took from the external photographing device. In a specific implementation process, a communication connection is established between the terminal and an external photographing device in advance, and the external photographing device sends the photograph to the terminal through the communication connection after obtaining the photograph of each unit display area. The communication connection may be a wireless connection or a wired connection, which is not limited here.

The reference photo is obtained by displaying the calibration image in full screen on the display screen in advance, and the reference photo is saved in the terminal for subsequent recall at any time. The device obtains the photo at this time and saves it in the memory as a reference photo. It should be pointed out that when the terminal displays the calibration picture in full screen on the display screen, it should also ensure that the brightness level of the display screen is the preset brightness level.

The color difference determination module 340 is configured to detect the unit display area with color difference by comparing the photos of each unit display area with the reference photo respectively.

Specifically, the color difference determination module 340 first detects the brightness values of the reference photo and the photos in each unit display area, and then compares the brightness difference between the reference photo and the photos in each unit display area. When the luminance difference value of , is greater than the preset threshold, it is determined that the unit display area is a unit display area with color difference. The preset threshold may be preset by a device manufacturer or preset by a user, which is not limited here.

For example: referring to Figure 5, it is assumed that the luminance value of the 1-21st, 23-36th unit display area is detected to be 8.32, the luminance value of the 22nd unit display area is 6.25, and the luminance value of the reference photo is 8.36, and The preset threshold is 2, then through analysis, it can be seen that the luminance difference between the reference photo and the 22nd unit display area is only greater than the preset threshold (2.07>2), so the color difference determination module 340 determines that the 22nd unit display area is present. The unit display area of chromatic aberration.

Optionally, please refer to FIG. 3 . As shown in the figure, the apparatus for detecting chromatic aberration in the embodiment of the present invention may further include a luminance compensation module 350 for performing luminance compensation on the unit display area with chromatic aberration.

Specifically, the brightness compensation module 350 increases the brightness of the unit display area with chromatic aberration according to the difference in brightness between the reference picture and the picture in the unit display area with chromatic aberration. As an optional implementation manner, the brightness compensation module 350 increases the brightness of the unit display area with color difference until the brightness difference between the reference photo and the photo in the unit display area is less than a preset threshold. As another optional implementation manner, the terminal pre-establishes a corresponding relationship between the brightness difference value and the brightness enhancement level, and then the brightness compensation module 350 can directly determine the brightness to be increased according to the brightness difference value. It should be noted that, the brightness compensation module 350 can increase the brightness of the unit display area by increasing the driving current or driving voltage of the unit display area.

Please refer to FIG. 4 , which is a schematic structural diagram of a terminal provided by an embodiment of the present invention. The terminal can be used to implement the color difference detection method provided in the embodiments of FIG. 1 to FIG. 2 , wherein:

The terminal 400 may include components such as a power source 410 , a memory 420 of one or more computer-readable storage media, an input unit 430 , a display unit 440 , a processor 450 , a camera 460 , and a communication unit 470 . Those skilled in the art can understand that the terminal structure shown in FIG. 4 does not constitute a limitation on the terminal, and may include more or less components than the one shown, or combine some components, or arrange different components. in:

The memory 420 may be used to store software programs and modules, and the processor 450 executes various functional applications and data processing by running the software programs and modules stored in the memory 450 . The memory 420 may mainly include a stored program area and a stored data area. In addition, memory 420 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 420 may also include a memory controller to provide access to the memory 420 by the processor 450 and the input unit 430 .

The input unit 430 may be used to receive input numerical or character information, and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control. Specifically, the input unit 430 may include a touch screen 431 and other input devices 432 . The touch screen 431 can collect the user's touch operations on or near it (such as the user's operations on the contact surface or near the contact surface with any suitable object or accessory such as a finger, a stylus, etc.), and drive corresponding actions according to a preset program. connection device. In addition to the touch screen 431 , the input unit 430 may also include other input devices 432 . In addition, other input devices 432 may include, but are not limited to, one or more of function keys (such as volume control keys, switch keys, etc.), trackballs, joysticks, and the like.

The display unit 440 can be used to display information input by the user or information provided to the user and various graphical user interfaces of the application calling device 400, which can be composed of graphics, text, icons, videos and any combination thereof. . The display unit 440 includes a display screen 441. Optionally, the display screen 441 may be an OLED display screen.

The terminal 400 also includes a power supply 410 (such as a battery) for supplying power to various components. Preferably, the power supply can be logically connected to the processor 450 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system. Power supply 450 may also include one or more DC or AC power sources, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, and any other components.

The processor 450 is the control center of the invoking device of the application program, uses various interfaces and lines to connect various parts of the entire mobile phone, runs or executes the software programs and/or modules stored in the memory 420, and invokes the software programs and/or modules stored in the memory 420. data, perform various functions and process data. Optionally, the processor 450 may include one or more processing cores; preferably, the processor 450 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc. , the modem processor mainly deals with communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 450.

The camera 460 has a photographing function for taking pictures.

The communication unit 470 may be a wired communication interface or a wireless communication interface, such as WiFi, cellular wireless communication, or Bluetooth, etc., which is not limited here. The communication unit 470 is configured to communicate with an external photographing device, and obtain a photo taken by the external photographing device.

Further, the processor 450 calls the program codes stored in the memory 420 to perform the following operations:

Divide the display into multiple unit display areas;

Display the same calibration picture in each of the unit display areas;

Obtaining photos of each of the unit display areas through a photographing device, and obtaining a preset reference photo of the display screen when the calibration picture is displayed in full screen;

By comparing the photos of each of the unit display areas with the reference photos, a unit display area with a color difference is detected.

Optionally, the processor 450 compares the photos of each of the unit display areas with the reference photos, and detects the specific operation of the unit display area with color difference as follows:

When the luminance difference between the reference photo and any photo in the unit display area is greater than a preset threshold, it is determined that the unit display area is a unit display area with color difference.

Alternatively, the processor 450 compares the photos of each of the unit display areas with the reference photos respectively, and after detecting the unit display area with color difference, further executes:

Perform luminance compensation on the unit display area with chromatic aberration.

Optionally, the specific operation of the processor 450 for performing luminance compensation on the unit display area with chromatic aberration is:

The brightness of the unit display area with chromatic aberration is increased according to the difference in luminance between the reference photo and the photograph in the unit display area with chromatic aberration.

Optionally, the specific operation of the processor 450 acquiring the photos of each of the unit display areas through the photographing device is as follows:

Take pictures of each of the unit display areas through the built-in camera; or

A photo of each of the unit display areas taken by the external photographing device and sent by the external photographing device is received.

An embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a program, and the program includes several instructions for executing part of the color difference detection method described in FIG. 1 to FIG. 2 in the embodiment of the present invention or all steps.

In the embodiment of the present invention, the display screen is first divided into a plurality of unit display areas, and then the same calibration picture is displayed in each unit display area, and then the photos of each unit display area are obtained by the photographing device, and the preset display screen is obtained. Display the reference photo of the calibration picture in the full screen, and then compare the photo of each unit display area with the reference photo to detect the unit display area with color difference, so as to detect the area with color difference in the display screen.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

Any description of a process or method in the flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing a specified logical function or step of the process , and the scope of the preferred embodiments of the invention includes alternative implementations in which the functions may be performed out of the order shown or discussed, including performing the functions substantially concurrently or in the reverse order depending upon the functions involved, which should It is understood by those skilled in the art to which the embodiments of the present invention belong.

The logic and/or steps represented in flowcharts or otherwise described herein, for example, may be considered an ordered listing of executable instructions for implementing the logical functions, may be embodied in any computer-readable medium, For use with, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can fetch instructions from and execute instructions from an instruction execution system, apparatus, or apparatus) or equipment. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport the program for use by or in conjunction with an instruction execution system, apparatus, or apparatus. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections with one or more wiring (electronic devices), portable computer disk cartridges (magnetic devices), random access memory (RAM), Read Only Memory (ROM), Erasable Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program may be printed, as the paper or other medium may be optically scanned, for example, followed by editing, interpretation, or other suitable medium as necessary process to obtain the program electronically and then store it in computer memory.

It should be understood that various parts of the present invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or a combination of the following techniques known in the art: Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, Programmable Gate Arrays (PGA), Field Programmable Gate Arrays (FPGA), etc.

Those skilled in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, and the program can be stored in a computer-readable storage medium. When executed, one or a combination of the steps of the method embodiment is included. In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically alone, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.

The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, and the like. Although the embodiments of the present invention have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present invention. Embodiments are subject to variations, modifications, substitutions and variations.

The above disclosures are only preferred embodiments of the present invention, and of course, the scope of the rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims (7)

1. a detection method of chromatic aberration, is characterized in that, described method comprises: Dividing the display screen into a plurality of unit display areas, and the area of each unit display area is not equal; Displaying the same gray solid color calibration picture in each of the unit display areas, and displaying the gray solid color calibration picture at a brightness level of 60%; The photos of each of the unit display areas are obtained through a camera provided with the display screen, wherein the self-contained camera includes a camera, and the flexible display screen is bent to the camera to shoot each of the unit displays the photo of the area, and obtain the preset reference photo when the display screen displays the calibration picture in full screen; By comparing the photos of each of the unit display areas with the reference photos, a unit display area with chromatic aberration is detected, and a drive current is increased for the unit display area with chromatic aberration to perform brightness compensation. 2. The method according to claim 1, wherein, by comparing the photos of each of the unit display areas with the reference photos respectively, detecting a unit display area with a chromatic aberration, comprising: When the luminance difference between the reference photo and any photo in the unit display area is greater than a preset threshold, it is determined that the unit display area is a unit display area with color difference. 3. The method according to claim 1, wherein the performing luminance compensation on the unit display area with chromatic aberration comprises: According to the luminance difference between the reference photo and the photo in the unit display area with color difference, the luminance of the unit display area with color difference is increased. 4. A detection device for chromatic aberration, wherein the device comprises: an area division module, which is used to divide the display screen into a plurality of unit display areas, and the area of each unit display area is not equal; The picture display module is used to display the same gray solid color calibration picture in each of the unit display areas, and the gray solid color calibration picture is displayed at a brightness level of 60%; A photo acquisition module, configured to acquire photos of each of the unit display areas through a self-contained shooting device of the display screen, wherein the self-contained shooting device includes a camera, and the flexible display screen is bent to the camera Taking photos of each of the unit display areas, and obtaining a preset reference photo of the display screen when the calibration picture is displayed in full screen; A chromatic aberration determination module, configured to detect a unit display area with a chromatic aberration by comparing the photos of each of the unit display areas with the reference photos respectively; The brightness compensation module is used for increasing the drive current for the unit display area with chromatic aberration to perform brightness compensation. 5. The device according to claim 4, wherein the color difference determination module is specifically configured to, when the luminance difference between the reference photo and any photo of the unit display area is greater than a preset threshold, Determine the unit display area as the unit display area with color difference. 6 . The apparatus according to claim 4 , wherein the luminance compensation module is specifically configured to increase the presence of the reference photo according to the luminance difference between the reference photo and the photo in the unit display area with color difference. 7 . The unit of chromatic aberration displays the brightness of the area. 7. A terminal, characterized in that the terminal comprises a display unit, a memory and a processor, wherein a group of programs is stored in the memory, and the processor is used to invoke the program stored in the memory, and performs the following operations: Dividing the display screen into a plurality of unit display areas, and the area of each unit display area is not equal; Displaying the same gray solid color calibration picture in each of the unit display areas, and displaying the gray solid color calibration picture at a brightness level of 60%; The photos of each of the unit display areas are obtained through a camera provided with the display screen, wherein the self-contained camera includes a camera, and the flexible display screen is bent to the camera to shoot each of the unit displays the photo of the area, and obtain the preset reference photo when the display screen displays the calibration picture in full screen; By comparing the photos of each of the unit display areas with the reference photos, a unit display area with chromatic aberration is detected, and a drive current is increased for the unit display area with chromatic aberration to perform brightness compensation.

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