Display screen color calibration method, apparatus, and medium

Abstract

The present disclosure relates to a display screen color calibration method, device and medium. The method comprises: in response to a color calibration instruction, performing color calibration testing on a display screen of an electronic device by a built-in sensor of the electronic device and obtaining response color information; determining a calibration value of the display screen based on optical display parameters of the display screen and the response color information; and changing the color configuration of the display screen according to the calibration value. The present embodiment uses a built-in sensor to perform color calibration on one or more display screens in an electronic device, thereby ensuring that the calibration operation process is simple, low in cost and good in effect.

Description

Technical Field

[0001] The present disclosure relates to a calibration method, and more particularly to a display screen color calibration method, device, and medium. Background Art

[0002] In the related art, CCD (Charge Coupled Device) sensors or CMOS (Complementary Metal Oxide Semiconductor) sensors are commonly used to calibrate the color of electronic device displays. Usually, these sensors are external measuring devices independent of the electronic device, which need to be connected to the electronic device through a data cable and fixed to the display screen of the electronic device through a fixing device to obtain the original color information of the test image in the electronic device. When calibrating the color of the display screen, these sensors need to ensure that the sensor and the display screen are close enough to prevent light leakage from the display screen, and the sensor needs to be equipped with a separate data connection device and power supply.

[0003] Related technologies also include integrating a CCD sensor into a single-screen notebook electronic device to achieve display color calibration. However, if the electronic device has multiple screens, it is impossible to use a single built-in CCD sensor to perform color calibration tests on each display and modify the color configuration parameters of each display individually. Furthermore, a single built-in CCD sensor cannot achieve simultaneous color calibration of multiple screens within the same electronic device.

[0004] Therefore, the existing display color calibration method has a complex implementation process and a single implementation environment, and needs further improvement. Summary of the Invention

[0005] To overcome the problems existing in the related art, the present disclosure provides a display color calibration method, device and medium. By building a unique color calibration sensor into an electronic device, a simple and efficient synchronous calibration of the color of one or more display screens can be achieved that meets user needs.

[0006] According to a first aspect of an embodiment of the present disclosure, a display screen color calibration method is provided, comprising: applying to an electronic device, in response to a color calibration instruction, performing a color calibration test on the display screen of the electronic device via a built-in sensor of the electronic device and obtaining response color information; determining a calibration value of the display screen based on optical display parameters of the display screen and the response color information; and changing the color configuration of the display screen according to the calibration value.

[0007] In one embodiment, an electronic device includes a first display screen and a second display screen; in response to a color calibration instruction, a color calibration test is performed on the display screen of the electronic device through a built-in sensor and response color information is obtained, including: in response to a first color calibration instruction, a color calibration test is performed on the first display screen through the built-in sensor to obtain first response color information; and / or, in response to a second color calibration instruction, a color calibration test is performed on the second display screen through the built-in sensor to obtain second response color information.

[0008] In one embodiment, before responding to the first and / or second color calibration instructions, the method further includes: displaying a prompt message for starting calibration on the first display screen or the second display screen, and generating the first and / or second color calibration instructions based on the user response to the prompt message; wherein the prompt message includes: displaying a prompt message for starting calibration of the first display screen on the first display screen or the second display screen in response to a device instruction or a user instruction; or displaying a prompt message for starting calibration of the second display screen on the first display screen or the second display screen in response to a prompt instruction indicating completion of the first color calibration instruction.

[0009] In one embodiment, in response to a color calibration instruction, a color calibration test is performed on a display screen of an electronic device through a built-in sensor and response color information is obtained, including: providing standard color information for the display screen in response to the color calibration instruction; displaying a test pattern on the display screen based on the standard color information; calling the built-in sensor to perform a color calibration test on the display screen and obtain response color information of the display screen.

[0010] In another embodiment, determining a calibration value of a display screen based on optical display parameters and response color information includes: adjusting the response color information of the first display screen based on the optical display parameters of the first display screen and the second display screen in the electronic device to determine the calibration value of the first display screen; or adjusting the response color information of the second display screen based on the optical display parameters of the first display screen and the second display screen in the electronic device to determine the calibration value of the second display screen.

[0011] In another embodiment, changing the color configuration of the display screen according to the calibration value includes: burning the calibration value into the driver board code of the display screen; re-driving the display screen, reading the driver board code of the display screen, and changing the color configuration of the display screen according to the driver board code of the display screen.

[0012] In another embodiment, the built-in sensor in the electronic device is a CCD sensor or a CMOS sensor.

[0013] In yet another embodiment, the built-in sensor is detachably connected to the electronic device body; the sensor performs a color calibration test on the second display screen in a manner of being detached from the electronic device body.

[0014] According to a second aspect of the embodiments of the present disclosure, a display screen color calibration apparatus is provided, comprising: a response unit configured to, in response to a color calibration instruction, perform color calibration testing on a display screen of an electronic device by using a built-in sensor and obtain response color information; a determination unit configured to determine a calibration value of the display screen based on optical display parameters and the response color information; and a configuration unit configured to change a color configuration of the display screen according to the calibration value.

[0015] In an embodiment, the electronic device comprises a first display screen and a second display screen; the response unit further comprises a first response unit and a second response unit, and the first response unit is configured to, in response to a first color calibration instruction, perform color calibration testing on the first display screen by using the built-in sensor and obtain first response color information; and the second response unit is configured to, in response to a second color calibration instruction, perform color calibration testing on the second display screen by using the built-in sensor and obtain second response color information.

[0016] In an embodiment, the response unit is further configured to, before responding to the first and second color calibration instructions, display prompt information for starting calibration by using the first display screen and the second display screen, and generate the first and / or second color calibration instruction according to a user response to the prompt information; wherein the prompt information comprises: in response to a device instruction or a user instruction, displaying prompt information for starting calibration of the first display screen on the first display screen or the second display screen; or in response to a prompt instruction for completion of the first color calibration instruction, displaying prompt information for starting calibration of the second display screen on the first display screen or the second display screen.

[0017] In an embodiment, the response unit is further configured to: in response to the color calibration instruction, provide standard color information for the display screen; display a test pattern on the display screen based on the standard color information; and call the built-in sensor to perform color calibration testing on the display screen and obtain response color information of the display screen.

[0018] In yet another embodiment, the determination unit is further configured to: based on optical display parameters of the first display screen and the second display screen in the electronic device, adjust the response color information of the first display screen and determine a calibration value of the first display screen; or based on optical display parameters of the first display screen and the second display screen in the electronic device, adjust the response color information of the second display screen and determine a calibration value of the second display screen.

[0019] In yet another embodiment, the configuration unit is further configured to: burn the calibration value into a code of a driving board of the display screen; re-drive the display screen, read the code of the driving board of the display screen, and change the color configuration of the display screen according to the code of the driving board of the display screen.

[0020] In another embodiment, the built-in sensor in the electronic device is a CCD sensor or a CMOS sensor.

[0021] In yet another embodiment, the built-in sensor is detachably connected to the electronic device body; the sensor performs a color calibration test on the second display screen in a manner of being detached from the electronic device body.

[0022] According to a third aspect of an embodiment of the present disclosure, a display screen color calibration device is provided, comprising: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to execute the display screen color calibration method according to the first aspect or any one of the implementations of the first aspect.

[0023] According to a fourth aspect of an embodiment of the present disclosure, a non-transitory computer-readable storage medium is provided, comprising: when the instructions in the storage medium are executed by a processor of a mobile electronic device, the mobile electronic device is enabled to execute the display color calibration method in the first aspect or any one of the embodiments of the first aspect.

[0024] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects: 1) A CCD sensor or CMOS sensor built into an electronic device can perform color calibration on a display screen of a known display type and meeting test conditions in the electronic device based on instructions from the electronic device. There is no need to select the display screen type and its backlight mode and preheat the display screen, change the ambient light intensity, or connect external devices or perform fixed operations. The calibration process is simple and convenient, and the user experience is good. The built-in calibration device eliminates the need for additional equipment such as a power supply, simplifying device configuration. During the test process, there is no need to purchase additional test equipment or programmers when burning calibration values, reducing unnecessary costs. Since a good test environment is ensured, the test results are more accurate. 2) Using the same sensor device to perform color calibration on the first and second displays can avoid the mismatch between the calibration results of the first and second displays due to the use of different optical parameters, thereby improving the accuracy of calibration. 3) Calibrating the color display of the first and second displays based on optical display parameters allows the display effect of the calibrated displays to be displayed according to user needs, and also allows multiple different displays on the same electronic device to have the same visual display effect, simplifying the calibration process and improving the user experience.

[0025] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0027] Figure 1The figure is a flow chart showing a method for color calibration of a display screen according to an exemplary embodiment of the present disclosure.

[0028] Figure 2 The figure is a schematic diagram showing a single-screen display color calibration device according to an exemplary embodiment of the present disclosure.

[0029] Figure 3 FIG. 4 is a schematic diagram showing a dual-screen display color calibration device according to another exemplary embodiment of the present disclosure.

[0030] Figure 4 The present invention is a flowchart of obtaining response color information in a method for display color calibration according to an exemplary embodiment of the present invention.

[0031] Figure 5 The figure is a block diagram of a device for calibrating display screen color according to an exemplary embodiment of the present disclosure.

[0032] Figure 6 FIG. 4 is a block diagram of a device for calibrating color of a display screen according to another exemplary embodiment of the present disclosure.

[0033] Figure 7 The figure is a structural block diagram of a display screen color calibration device according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0034] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0035] The display screen color calibration method provided by the embodiments of the present disclosure is applied to an electronic device having a built-in color calibration sensor and including one or more display screens. Figure 1 FIG. 1 is a flow chart showing a method for color calibration of a display screen according to an exemplary embodiment of the present disclosure. Figure 1 As shown, the display color calibration method is used in an electronic device and includes the following steps.

[0036] In step S11 , in response to a color calibration instruction, a color calibration test is performed on a display screen of the electronic device through a built-in sensor of the electronic device and response color information is acquired.

[0037] After receiving the color calibration instruction from the application, the electronic device transmits the color calibration instruction to the built-in sensor for color calibration. The color calibration instruction involved in the embodiments of the present disclosure can be triggered by the user. For example, the user inputs the color that triggers the calibration instruction through an optical calibration program in the electronic device. The calibration instruction can also be a instruction issued by the device as a periodic reminder. For example, when the device recognizes that a preset calibration time has arrived, it automatically starts the calibration operation.

[0038] In an embodiment of the present disclosure, the built-in sensor performs a color calibration test on the display screen after receiving a color calibration instruction. The built-in sensor can automatically initiate a color calibration test on the display screen within a period of time after receiving the color calibration instruction. At this time, if the device environment of the display screen meets the test conditions, the tested display screen color data is accurate. It is conceivable that the built-in sensor can also initiate a color calibration test on the display screen based on a received device signal. For example, the built-in sensor can initiate a test based on a signal received from the device to achieve a snap-on state, or the built-in sensor can initiate a test based on a received user operation.

[0039] After the test is complete, the built-in sensor converts the optical signal into an electrical signal based on its own photoelectric conversion characteristics, and stores the color information of the test pattern captured during the test in the form of an electrical signal. The color information of the test pattern captured by the built-in sensor is the response color information.

[0040] In step S12 , a calibration value of the display screen is determined based on the optical display parameters of the display screen and the response color information.

[0041] After the electronic device obtains the response color information of the display screen, it can usually directly use the response color information as a calibration value of the display screen, and modify the color configuration of the display screen according to the calibration value.

[0042] However, when the display screen itself has certain optical display parameters, such as the default display brightness, color saturation, etc. of the display screen, the response color information obtained by the built-in sensor can be adjusted according to the optical display parameters, such as adjusting the brightness and saturation in the display color information, so as to obtain a calibration value for calibrating the screen color.

[0043] Adjusting the response color information through the optical display parameters of the display screen includes two different color adjustment methods.

[0044] The first method is to adjust the corresponding display's response color information based on the display's optical display parameters. This is intended to prevent the electronic device from mistakenly identifying the response color information acquired by the built-in sensor as the color information displayed when the display is in a standard state. For example, when a user adjusts the brightness parameter in the display's optical display parameters to 80%, the response color information acquired by the built-in sensor will inevitably be darker than the standard color information. For example, the standard red test pattern (255, 0, 0) in RGB format will be recognized as the darker color (195, 30, 30). At this time, if the electronic device determines the calibration value based on the response color information (195, 30, 30), the calibrated display will indeed display the standard red test pattern as standard red without changing the optical parameters. However, after calibration, if the user adjusts the optical display parameters to 100, the information displayed by the standard red test pattern may be too bright. Therefore, when the electronic device adjusts the display's response color information, it will refer to its own optical display parameters. For example, when the brightness parameter in the optical display parameters is 80%, the response color information (195, 30, 30) obtained by the built-in sensor is adjusted to the higher brightness (245, 5, 5) based on the brightness parameter. At this time, generating a calibration value based on the adjusted response color information can more accurately represent the color shift caused by aging and other issues on the display, without taking into account the color shift caused by the optical display parameters. Using this method to calibrate the display screen in electronic devices can ensure more accurate color correction and a better user experience.

[0045] The second method only applies to situations where an electronic device has multiple displays and both displays are calibrated in a single calibration process. In this case, the response color information of one display can be further adjusted based on the difference in optical display parameters between the two displays to derive a final calibration value. After the color configuration of each display is modified using the two calibration values, the display effects of the two displays can be synchronized. For example, if the electronic device has different display brightness parameter settings for the first and second displays, the response color information of one display will be further modified to achieve the same display brightness on both displays.

[0046] In step S13, the color configuration of the display screen is changed according to the calibration value.

[0047] After obtaining the calibration values ​​used to calibrate the screen color, the display can calibrate the original color configuration to adjust the display color. During this process, the built-in sensor transmits the calibration value to the electronic device, which burns the calibration value into the display's driver board code. When the display is re-driven and reads the driver board code, its display configuration can be changed and calibration is completed.

[0048] The embodiments of the present disclosure will now describe the display screen color calibration method involved in the above embodiments in combination with practical applications.

[0049] In an embodiment of the present disclosure, the electronic device may include one or more display screens. If the electronic device includes only one display screen, a color calibration test is performed on only one display screen and its color configuration is modified according to display requirements. If the electronic device includes multiple display screens, color calibration tests can be performed on multiple display screens at the same time, and the color configurations of the multiple display screens can be synchronized to have the same display effect.

[0050] Figure 2 FIG. 1 is a schematic diagram of a single-screen display color calibration device according to an exemplary embodiment of the present disclosure. Figure 2 As shown in FIG, a first display screen 11 is located on the B side of an electronic device such as a laptop computer, and a built-in sensor 21 is located on the C side of the laptop computer. When the laptop computer is folded, the first display screen 11 and the built-in sensor 21 are snapped together. The built-in sensor 21 is located within the enclosed space of the laptop computer housing, ensuring the airtightness of the test environment and keeping the ambient light intensity below a certain threshold.

[0051] It should be noted that when testing a display screen, the CCD sensor or CMOS sensor must ensure that the ambient light intensity is within a certain range to ensure the accuracy of the data obtained during the test. To ensure the accuracy of color calibration, before the built-in sensor 21 performs the test operation, it is usually necessary to ensure that the device environment meets the test conditions.

[0052] Specifically, the device environment of the first display screen 11 satisfies the test condition when the device completes the folding operation, that is, the first display screen 11 and the built-in sensor 21 are in a snap-fit ​​state. In the closed space of the notebook, the ambient light obtained by the built-in sensor 21 is very small.

[0053] In another embodiment of the present disclosure, when the electronic device responds to a first color calibration instruction, it can perform a color calibration test on the first display screen 11 through the built-in sensor 21 and obtain first response color information; and when the electronic device responds to a second color calibration instruction, it can perform a color calibration test on the second display screen 12 through the built-in sensor 21 and obtain second response color information.

[0054] Figure 3 FIG. 1 is a schematic diagram of a dual-screen display color calibration device according to another exemplary embodiment of the present disclosure. Figure 3In the disclosed embodiment, the first display screen 11 is located on the B side of the laptop device, and the second display screen 12 is located on the C side of the laptop device near the edge and leaves space for the detachable built-in sensor 22. The detachable built-in sensor 22 is located at the center of the C side of the laptop device.

[0055] In a dual-screen device, the electronic device automatically detects the hardware device information of multiple displays and prompts the user to detect them in sequence. The default detection order is that when the electronic device is folded, the display screen that is engaged with the detachable built-in sensor 22 is the first display screen 11 to be detected first; when the detachable built-in sensor 22 is removed from the electronic device and turned upside down, the screen that can be detected is the second display screen 12. Generally, the second display screen 12 is selected for detection after the first display screen 11 is detected.

[0056] The detachable built-in sensor 22 in this embodiment can be removed from the electronic device and placed upside down on the second display screen 12 during color calibration testing of the second display screen 12, thereby achieving a snap fit between the second display screen 12 and the detachable built-in sensor 22. To ensure low ambient light intensity, a suction cup can be provided above the detachable built-in sensor 22 to allow the detachable built-in sensor 22 to adhere to the second display screen 12, or the detachable built-in sensor 22 can be placed on a light shield on the second display screen 12.

[0057] Unlike single-screen color calibration methods, the dual-screen color calibration method completes the color calibration test for the first display 11 and then adds a color calibration test for the second display 12. The dual-screen calibration method of the disclosed embodiment enables the first and second displays 11, 12 to achieve identical optical display parameters, resulting in identical or similar display effects after calibration. The specific display calibration methods are discussed in the following embodiments of the disclosure.

[0058] In one embodiment of the present disclosure, the first color calibration instruction can be responded to by obtaining a device instruction or a user instruction. Prior to responding to the first color calibration instruction, a prompt message for starting calibration can be displayed on the first display screen 11 or the second display screen 12, and the first color calibration instruction can be generated based on the user's response to the prompt message. The prompt message includes: displaying a prompt message for starting calibration of the first display screen 11 on the first display screen 11 or the second display screen 12 in response to the device instruction or the user instruction.

[0059] In one embodiment, the electronic device customizes a time constant, such as one year or six months, and uses this time constant as a time parameter for automatically starting display screen calibration. When the optical calibration application in the electronic device (hereinafter referred to as the optical calibration program, which is usually pre-installed in the electronic device at the factory and does not require user installation) recognizes that this time constant has been reached, it automatically starts and performs calibration. At this time, the user of the electronic device will receive a calibration prompt issued by the optical calibration program on the first display screen 11 or the second display screen 12, asking whether to start calibration of the first display screen 11. If the user chooses to start calibration, the optical calibration program will send the calibration instruction to the built-in sensor; if the user refuses calibration, the optical calibration program will end the first color calibration instruction and proceed to the next step, displaying a prompt message on the first display screen 11 or the second display screen 12 to start calibration of the second display screen 12.

[0060] In another embodiment, the user of the electronic device may also independently start the optical calibration application at a random time and choose to start calibration through the interface of the optical calibration program.

[0061] In another embodiment of the present disclosure, a prompt message for starting to calibrate the second display screen 12 may be displayed on the first display screen 11 or the second display screen 12 in response to a prompt instruction indicating that the first color calibration instruction is completed.

[0062] When the first color calibration instruction is completed, the electronic device will be prompted to display a prompt message to calibrate the second display screen 12. At this time, the optical calibration program will prompt the user on the first display screen 11 or the second display screen 12 that it is time to calibrate the second display screen 12. If the user chooses to start calibration, the optical calibration program will send the calibration instruction to the built-in sensor.

[0063] Unlike the first color calibration instruction, the second color calibration instruction is generated in a dual-screen electronic device. When the electronic device recognizes that the color calibration test of the first display screen 11 has been completed and the built-in sensor is in an idle state, it will automatically prompt the user whether to start the test of the second display screen 12.

[0064] There are two possible scenarios for the completion of the first color calibration command. First, the first display screen 11 has already completed the color calibration test after responding to the first color calibration command. Second, after the first color calibration command is issued, the user declines to perform the color calibration test on the first display screen 11. In this case, the optical calibration program skips the color calibration test on the first display screen 11 and directly performs the color calibration test on the second display screen 12.

[0065] The user operation prompt information for starting to calibrate the first display screen 11 and the second display screen 12 is displayed on the first display screen 11 or the second display screen 12. Usually, this information can be in the form of a prompt box to allow the user to choose. For example, the user can choose to start the color calibration test now. After the user chooses to start the color calibration test, the device will respond to the user's confirmation operation and transmit the first color calibration instruction to the built-in sensor. If the user chooses to start the color calibration test later, or ends the color calibration test for the display screen, the program will wait for a while, or jump directly to the next step. For example, when the user chooses to cancel the test on the first display screen 11, the program will continue to prompt the user whether to start the color calibration test on the second display screen 12.

[0066] Figure 4 FIG. 1 is a flow chart of obtaining response color information of a display screen color calibration method according to an exemplary embodiment of the present disclosure. Figure 4 As shown, the electronic device responds to the color calibration instruction, performs a color calibration test on the display screen of the electronic device through the built-in sensor, and obtains the response color information, which includes the following steps.

[0067] In step S21 , in response to a color calibration instruction, standard color information is provided for the display screen.

[0068] When an electronic device issues a color calibration instruction, it includes providing standard color information for the display and using it in the color calibration test. This standard color information is pre-stored in the optical calibration program and used to compare it with the response color information in subsequent steps after obtaining the response color information.

[0069] Standard color information is the original color information of the test pattern, such as color values ​​in formats like RGB or CMYK. Based on this standard color information, the electronic device's display can identify how to configure the LCD or picture tube to display different colors. The display can then display the standard color information with a slight offset based on its optical display parameters and the display performance of its components.

[0070] In step S22, a test pattern is displayed on the display screen based on the standard color information.

[0071] The display will use a test pattern stored in a pre-installed optical calibration program in the electronic device, or a test pattern automatically generated based on preset parameters for testing. The standard of the test pattern will be used to calculate the calibration value.

[0072] In step S23, the built-in sensor is called to perform a color calibration test on the display screen and obtain the response color information of the display screen.

[0073] The built-in sensor tests the test pattern displayed on the display. Upon receiving instructions from the electronic device, the built-in sensor samples the test pattern multiple times and obtains corresponding color information based on the sampled data. Typically, the response color information should include at least the color value, the test pattern number corresponding to the color value, and the coordinate position.

[0074] Furthermore, the response color information may be different due to various parameters. Therefore, when an electronic device with multiple display screens performs color calibration, the parameters of the built-in sensor can be guaranteed to remain unchanged by using the same built-in sensor. For example, when the built-in sensor acquires color information such as brightness and color of the first display screen 11 and the second display screen 12, the photosensitivity of the built-in sensor remains unchanged, and the output saturation characteristics, dark output characteristics, sensitivity, diffusion and other properties of the built-in sensor itself are fixed. During the manufacturing process of the sensor, when different sensors receive the same light intensity, the output photocurrent will have slight differences, and the color test results output after the electrical signal is amplified will also be different. In the embodiment of the present disclosure, by using the same detachable built-in sensor 22 to test multiple display screens, the same optical parameters can be provided for multiple different display screens, so that no errors will occur during the color calibration of the first display screen 11 and the second display screen 12.

[0075] In one embodiment, the first display screen 11 and the second display screen 12 can be tested using the same standard color information to ensure that the first display screen 11 and the second display screen 12 are tested using the same testing method, thereby minimizing the test error during the test process.

[0076] In another embodiment, the accuracy of the response color information can be ensured by ensuring a uniform test environment, such as by reducing the difference in ambient light brightness between the first display screen 11 and the second display screen 12 when they are respectively engaged with the detachable built-in sensor 22, thereby ensuring consistency in the response color information.

[0077] In another embodiment, during the manufacturing process of the electronic device, the display parameters of the first display screen 11 and the second display screen 12 are pre-debugged. Since different screens may also have display differences during the manufacturing process, the display parameters of the screens can be adjusted through pre-debugging so that the first display screen 11 and the second display screen 12 have the same color display effect before leaving the factory. During the adjustment process, the driver board code of one or more display screens may have been changed to a value different from the original code information. Therefore, in the color calibration method used in the present disclosure, the initial driver board code information of the display screen is recorded, and the initial information is used to calculate the calibration value when modifying the color configuration information of the display screen.

[0078] In one embodiment, after obtaining the response color information, the electronic device compares the received response color information with the standard color information and calculates a calibration value. Generally, the standard color information indicates the fixed position of the test pattern in the color space. However, the position of the test pattern obtained based on the response color information in the color space varies depending on the display state of the display. Therefore, the response color information of a display with color difference may be offset from the fixed position of the standard color information. The system calculates this offset based on the response color information and the standard color information and uses this offset as the calibration value.

[0079] In another embodiment, determining the calibration value of a display screen based on optical display parameters and response color information includes: adjusting the response color information of the first display screen 11 based on the optical display parameters of the first display screen 11 and the second display screen 12 in the electronic device to determine the calibration value of the first display screen 11; or adjusting the response color information of the second display screen 12 based on the optical display parameters of the first display screen 11 and the second display screen 12 in the electronic device to determine the calibration value of the second display screen 12.

[0080] At this point, after the electronic device obtains the response color information, it confirms the optical display parameters of the first display 11 and the second display 12, such as the brightness, chroma, and saturation of the display. In a multi-screen electronic device, the optical display parameters of the first display 11 and the second display 12 may differ. In this case, after modifying the response color information of the corresponding display based on the optical display parameters of each display, the response color information of one of the displays is also modified a second time.

[0081] For example, the brightness of the first display screen 11 is 80%, while the brightness of the second display screen 12 is 50%. Due to the difference in optical display parameters, the first display screen 11 and the second display screen 12 have a very large brightness difference before calibration. The process of modifying the response color information once can ensure that the optical display parameters will not affect the calibration results, that is, after calibration, the first display screen 11 and the second display screen 12 still have the same degree of brightness difference. At this time, the brightness difference between the two displays can be obtained based on the brightness difference value 80%-50%=30% between the first display screen 11 and the second display screen 12, and the response color information can be further adjusted based on this brightness difference to have a higher brightness when displaying colors, thereby offsetting the problem of color display asynchrony between the two displays caused by the 30% brightness difference value. This not only provides a newer technical solution for display color calibration, but also ensures a good user experience.

[0082] In another embodiment of the present disclosure, changing the color configuration of a display screen according to a calibration value includes: burning the calibration value into a driver board code of the display screen; re-driving the display screen, reading the driver board code of the display screen, and changing the color configuration of the display screen according to the driver board code of the display screen.

[0083] In the disclosed embodiment, after the built-in sensor completes the calibration, the calibration value will be burned into the TCON Code (driver board code) of the display to complete the calibration work. Usually, the display screen will select a driver board that is suitable for it according to its type. The program information burned in the driver board can prompt how the display screen should be started. Under normal circumstances, the work of updating or burning the driver board code requires additional burning software and hardware programmers to complete. In this embodiment, in order to facilitate the calibration of the display screen, the relevant functions can be built into the mainboard of the electronic device. In this way, when the optical calibration application recognizes that the built-in sensor has completed the calibration work, the burning software can be called to update the driver board code with the calibration data obtained by the built-in sensor.

[0084] When the display is restarted, the driver board code retrieves a calibrated color display scheme. This color display scheme can, for example, adjust the luminous efficiency of different colors in the display, such as by increasing or decreasing the voltage or current of a certain color's LED, to achieve a new color balance. With this calibrated color display scheme, the electronic device can use it to calibrate the display's colors and correct for color shifts.

[0085] In another embodiment of the present disclosure, a CCD sensor or a CMOS sensor is used to perform a color calibration test on a display screen.

[0086] However, the present disclosure is not limited to the use of CCD sensors or CMOS sensors. For example, a grating spectrophotometer or the like can also be used to perform color testing on a display device. Any sensor or optical element that has the necessary built-in conditions can be built into the electronic device and perform color calibration testing on the first display 11 and / or the second display 12.

[0087] In another embodiment of the present disclosure, the built-in sensor is detachably connected to the electronic device body, and the sensor performs a color calibration test on the second display screen 12 in a manner of being detached from the electronic device body.

[0088] Typically, a snap-fitting notebook-style electronic device includes side A, side B, side C, and side D. Side A is the top surface of the electronic device when snapped together, side B is the plane where the first display screen 11 is located, side C is located opposite side B when the device is snapped together, and side D is the bottom surface of the electronic device when snapped together.

[0089] In order to test the first display screen 11, the built-in sensor 21 is arranged opposite to the first display screen 11 when the electronic device is in the closed state, and the optimal position is the center position of the first display screen 11, usually the center of the keyboard of the electronic device. Meanwhile, the built-in sensor 21 can be built in the device, that is, in the process of hardware device integration, the shell where the device C surface is located can be recessed inward and reserve enough position for the small built-in sensor 21, the upper surface of the built-in sensor 21 is in the same plane with the upper surface of the device C surface, which can ensure that the built-in sensor 21 is not easy to be worn during the use of the electronic device. In order to fix the built-in sensor 21, a fixed or movable clamping groove can be arranged on the edge of the shell recessed part, and the built-in sensor 21 is clamped in the shell recessed part. The built-in sensor 21 can also be built in the electronic device in any other easily thought way.

[0090] In addition, the built-in sensor can be connected with the main body of the electronic device in a detachable manner, that is, the sensor 22 can be taken out from the device shell, so as to be inverted on the second display screen 12 to test the second display screen 12. At this time, although the detachable built-in sensor 22 can be taken out from the device shell, the detachable built-in sensor 22 and the electronic device are still connected with each other in the mode of data signal line and / or power line. This can ensure that the energy supply of the detachable built-in sensor 22 comes from the electronic device, and can ensure the sending and receiving of color calibration instructions and other information between the detachable built-in sensor 22 and the electronic device.

[0091] Based on the same concept, the display screen color calibration device provided by the embodiments of the present disclosure also provides a display screen color calibration device.

[0092] It can be understood that the display screen color calibration device provided by the embodiments of the present disclosure comprises the hardware structure and / or software module corresponding to the execution of each function in order to realize the above functions. In combination with the units and algorithm steps of each example disclosed in the embodiments of the present disclosure, the embodiments of the present disclosure can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of the embodiments of the present disclosure.

[0093] Figure 5 is a device block diagram of a display screen color calibration device according to an exemplary embodiment of the present disclosure. Referring to Figure 5 , the device 300 comprises a response unit 301, a determination unit 302 and a configuration unit 303.

[0094] The response unit 301 is configured to respond to a color calibration instruction, perform a color calibration test on the display screen of the electronic device through the built-in sensor of the electronic device and obtain response color information; the determination unit 302 is configured to determine the calibration value of the display screen based on the optical display parameters of the display screen and the response color information; the configuration unit 303 is configured to change the color configuration of the display screen according to the calibration value.

[0095] Figure 6 FIG. 1 is a block diagram of a device for calibrating display screen color according to another exemplary embodiment of the present disclosure. Figure 6 The device 300 may further include a first display screen 11 and a second display screen 12; the response unit 301 may further include a first response unit 304 and a second response unit 305, and the first response unit 304 is used to respond to the first color calibration instruction, perform a color calibration test on the first display screen 11 through the built-in sensor, and obtain first response color information; the second response unit 305 is used to respond to the second color calibration instruction, perform a color calibration test on the second display screen 12 through the built-in sensor, and obtain second response color information.

[0096] In one embodiment, the response unit 301 may also be configured to display a prompt message for starting calibration on the first display screen 11 or the second display screen 12 before responding to the first and second color calibration instructions, and generate the first and / or second color calibration instructions based on the user response to the prompt message; wherein the prompt message includes: displaying a prompt message for starting calibration of the first display screen 11 on the first display screen 11 or the second display screen 12 in response to a device instruction or a user instruction; or displaying a prompt message for starting calibration of the second display screen 12 on the first display screen 11 or the second display screen 12 in response to a prompt instruction indicating completion of the first color calibration instruction.

[0097] In one embodiment, the response unit 301 can also be used to: provide standard color information for the display screen in response to a color calibration instruction; display a test pattern on the display screen based on the standard color information; call the built-in sensor to perform a color calibration test on the display screen and obtain the response color information of the display screen.

[0098] In another embodiment, the determination unit 302 can also be used to: adjust the response color information of the first display screen 11 based on the optical display parameters of the first display screen 11 and the second display screen 12 in the electronic device, and determine the calibration value of the first display screen 11; or, adjust the response color information of the second display screen 12 based on the optical display parameters of the first display screen 11 and the second display screen 12 in the electronic device, and determine the calibration value of the second display screen 12.

[0099] In another embodiment, the configuration unit 303 may also be used to: burn the calibration value into the driver board code of the display screen; re-drive the display screen, read the driver board code of the display screen, and change the color configuration of the display screen according to the driver board code of the display screen.

[0100] In another embodiment, the built-in sensor in the electronic device is a CCD sensor or a CMOS sensor.

[0101] In another embodiment, the built-in sensor is connected to the electronic device body in a detachable manner; the sensor performs a color calibration test on the second display screen 12 in a manner of being detached from the electronic device body.

[0102] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0103] Figure 7 FIG4 is a block diagram illustrating a device 400 for display color calibration according to an exemplary embodiment of the present disclosure. For example, the device 400 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a medical device, a fitness device, a personal digital assistant, or the like.

[0104] Reference Figure 7 , apparatus 400 may include one or more of the following components: a processing component 402 , a memory 404 , a power component 406 , a multimedia component 408 , an audio component 410 , an input / output (I / O) interface 412 , a sensor component 414 , and a communication component 416 .

[0105] Processing component 402 generally controls the overall operation of device 400, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. Processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the above-described method. In addition, processing component 402 may include one or more modules to facilitate interaction between processing component 402 and other components. For example, processing component 402 may include a multimedia module to facilitate interaction between multimedia component 408 and processing component 402.

[0106] The memory 404 is configured to store various types of data to support operations on the device 400. Examples of such data include instructions for any application or method operating on the device 400, contact data, phone book data, messages, pictures, videos, etc. The memory 404 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0107] Power component 406 provides power to the various components of device 400. Power component 406 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 400.

[0108] The multimedia component 408 includes a screen that provides an output interface between the device 400 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can not only sense the boundaries of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 408 includes a front camera and / or a rear camera. When the device 400 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0109] The audio component 410 is configured to output and / or input audio signals. For example, the audio component 410 includes a microphone (MIC) that is configured to receive external audio signals when the device 400 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 404 or transmitted via the communication component 416. In some embodiments, the audio component 410 also includes a speaker for outputting audio signals.

[0110] I / O interface 412 provides an interface between processing component 402 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.

[0111] Sensor assembly 414 includes one or more sensors for providing various aspects of the status assessment of device 400. For example, sensor assembly 414 can detect the open / closed state of device 400, the relative positioning of components, such as the display screen and keypad of device 400. Sensor assembly 414 can also detect changes in the position of device 400 or a component of device 400, the presence or absence of user contact with device 400, the orientation or acceleration / deceleration of device 400, and changes in the temperature of device 400. Sensor assembly 414 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. In some embodiments, sensor assembly 414 may also include an accelerometer, a gyroscope, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0112] The communication component 416 is configured to facilitate wired or wireless communication between the device 400 and other devices. The device 400 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 416 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 416 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0113] In an exemplary embodiment, the apparatus 400 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-described method.

[0114] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 404 including instructions, which can be executed by the processor 420 of the apparatus 400 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0115] It is further understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0116] It will be further understood that the terms "first," "second," and the like are used to describe various types of information, but such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another and do not indicate a particular order or level of importance. In fact, the terms "first," "second," and the like are fully interchangeable. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information without departing from the scope of this disclosure.

[0117] It is further understood that although operations are described in a particular order in the drawings in the embodiments of the present disclosure, this should not be construed as requiring that the operations be performed in the particular order shown or in a serial order, or that all of the operations shown be performed to obtain the desired results. In certain circumstances, multitasking and parallel processing may be advantageous.

[0118] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0119] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A display color calibration method, characterized in that: Applied to electronic equipment, including: The electronic device includes a first display screen and a second display screen; In response to the color calibration instruction, performing a color calibration test on the display screen of the electronic device through a built-in sensor of the electronic device and obtaining corresponding color information; determining a calibration value of the display screen based on an optical display parameter of the display screen and the response color information; Determining the calibration value of the display screen includes adjusting the corresponding response color information of the display screen according to the optical display parameters of the display screen, and generating the calibration value based on the adjusted response color information; wherein, Determining the calibration value of the display screen based on the optical display parameters and the response color information includes: adjusting the response color information of the first display screen based on the optical display parameters of the first display screen and the second display screen in the electronic device to determine the calibration value of the first display screen; or adjusting the response color information of the second display screen based on the optical display parameters of the first display screen and the second display screen in the electronic device to determine the calibration value of the second display screen; changing the color configuration of the display screen according to the calibration value; Changing the color configuration of the display screen according to the calibration value includes: burning the calibration value into the driver board code of the display screen; redriving the display screen, reading the driver board code of the display screen, and changing the color configuration of the display screen according to the driver board code of the display screen.

2. The display color calibration method according to claim 1, wherein: The step of performing a color calibration test on the display screen of the electronic device and acquiring response color information by using the built-in sensor in response to the color calibration instruction includes: In response to a first color calibration instruction, performing a color calibration test on the first display screen by using the built-in sensor to obtain first response color information; and / or, In response to the second color calibration instruction, a color calibration test is performed on the second display screen through the built-in sensor to obtain second response color information.

3. The display color calibration method according to claim 2, wherein: Before responding to the first and / or second color calibration instructions, the method further includes: displaying a prompt message for starting calibration on the first display screen or the second display screen, and generating the first and / or second color calibration instructions based on a user response to the prompt message; The prompt information includes: In response to a device instruction or a user instruction, displaying a prompt message for starting to calibrate the first display screen on the first display screen or the second display screen; or, In response to a prompt instruction indicating that the first color calibration instruction is completed, a prompt message for starting to calibrate the second display screen is displayed on the first display screen or the second display screen.

4. The display color calibration method according to claim 1, wherein: The step of performing a color calibration test on the display screen of the electronic device and acquiring response color information by using the built-in sensor in response to the color calibration instruction includes: providing standard color information for the display screen in response to the color calibration instruction; displaying a test pattern on the display screen based on the standard color information; The built-in sensor is called to perform a color calibration test on the display screen, and the response color information of the display screen is obtained.

5. The display screen color calibration method according to claim 1, wherein: include: The built-in sensor in the electronic device is a CCD sensor or a CMOS sensor.

6. The display color calibration method according to any one of claims 1 to 5, characterized in that: include: The built-in sensor is connected to the electronic device body in a detachable manner; The sensor performs a color calibration test on the second display screen in a manner of being detached from the electronic device body.

7. A display color calibration device, characterized in that: Applied to an electronic device, the electronic device includes a first display screen and a second display screen, including: a response unit, configured to respond to a color calibration instruction by performing a color calibration test on a display screen of the electronic device through a built-in sensor of the electronic device and obtaining response color information; a determining unit configured to determine a calibration value for the display screen based on the optical display parameters of the display screen and the response color information, wherein the determining the calibration value for the display screen includes adjusting the response color information of the corresponding display screen according to the optical display parameters of the display screen, and generating the calibration value based on the adjusted response color information; and adjusting the response color information of the first display screen based on the optical display parameters of the first display screen and the second display screen in the electronic device to determine the calibration value for the first display screen; or adjusting the response color information of the second display screen based on the optical display parameters of the first display screen and the second display screen in the electronic device to determine the calibration value for the second display screen; A configuration unit is used to change the color configuration of the display screen according to the calibration value, burn the calibration value into the driver board code of the display screen, redrive the display screen, read the driver board code of the display screen, and change the color configuration of the display screen according to the driver board code of the display screen.

8. The display screen color calibration device according to claim 7, characterized in that: The response unit further includes a first response unit and a second response unit, and a first response unit, configured to respond to a first color calibration instruction, perform a color calibration test on the first display screen through the built-in sensor, and obtain first response color information; and / or, The second response unit is configured to respond to a second color calibration instruction, perform a color calibration test on the second display screen through the built-in sensor, and obtain second response color information.

9. The display screen color calibration device according to claim 8, characterized in that: The response unit may also be configured to display a prompt message for starting calibration on the first display screen or the second display screen before responding to the first and second color calibration instructions, and generate the first and / or second color calibration instructions based on the user response to the prompt message; The prompt information includes: In response to a device instruction or a user instruction, displaying a prompt message for starting to calibrate the first display screen on the first display screen or the second display screen; or, In response to a prompt instruction indicating that the first color calibration instruction is completed, a prompt message for starting to calibrate the second display screen is displayed on the first display screen or the second display screen.

10. The display screen color calibration device according to claim 7, characterized in that: The response unit may also be used to: providing standard color information for the display screen in response to the color calibration instruction; displaying a test pattern on the display screen based on the standard color information; The built-in sensor is called to perform a color calibration test on the display screen, and the response color information of the display screen is obtained.

11. The display screen color calibration device according to claim 7, characterized in that: include: The built-in sensor in the electronic device is a CCD sensor or a CMOS sensor.

12. The display screen color calibration device according to any one of claims 8 to 11, characterized in that: include: The built-in sensor is connected to the electronic device body in a detachable manner; The sensor performs a color calibration test on the second display screen in a manner of being detached from the electronic device body.

13. A display screen color calibration device, characterized in that: include: processor; a memory for storing processor-executable instructions; The processor is configured to execute the display screen color calibration method according to any one of claims 1 to 6.

14. A non-transitory computer-readable storage medium, wherein when instructions in the storage medium are executed by a processor of a mobile terminal, the mobile terminal is enabled to perform a display color calibration method, the method comprising: The mobile terminal is enabled to execute the display screen color calibration method according to any one of claims 1 to 6.

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