CN111653232A

CN111653232A - LED screen color gamut calibration method and device

Info

Publication number: CN111653232A
Application number: CN202010506255.0A
Authority: CN
Inventors: 王坤
Original assignee: Xi'an Qingsong Optoelectronic Technology Co ltd; Guangzhou Shiyuan Electronics Thecnology Co Ltd
Current assignee: Qstech Co Ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2020-09-11
Anticipated expiration: 2040-06-05
Also published as: CN111653232B

Abstract

The embodiment of the application provides a method and a device for calibrating a color gamut of a light-emitting diode (LED) screen, wherein the method comprises the following steps: receiving an operation instruction, wherein the operation instruction is used for instructing the terminal equipment to carry out color gamut calibration; respectively determining a first color gamut and a second color gamut according to the operation instruction; if at least one vertex coordinate of the second color gamut is outside the first color gamut, determining a target color gamut according to the first color gamut; the target color gamut is within the first color gamut; and performing color gamut calibration on the LED screen according to the target color gamut. The method and the device for calibrating the color gamut of the LED screen can improve the efficiency of color gamut calibration and the accuracy of color gamut calibration.

Description

LED screen color gamut calibration method and device

Technical Field

The embodiment of the application relates to a terminal technology, in particular to a method and a device for calibrating a color gamut of a light-emitting diode (LED) screen.

Background

Based on the rapid development of the Light Emitting Diode (LED) display screen industry, people have higher and higher requirements for the display effect of the LED display screen. However, the LED light emission has a certain dispersion in brightness and chromaticity, which may reduce the image quality of the LED display screen, and therefore, the color gamut calibration of the LED display screen is required.

In the prior art, a user measures a color coordinate value of an original color gamut through a colorimeter, and after the color coordinate value is input to a terminal device, the terminal device can determine the original color gamut. In addition, the user can input the color coordinate value of the target color gamut to the terminal device according to the color gamut to be calibrated, and the terminal device can determine the target color gamut according to the color coordinate value, so that the calibration of the color gamut can be realized according to the original color gamut and the target color gamut. In practical applications, the target color gamut may exceed the original color gamut, and when the target color gamut exceeds the original color gamut, in order to ensure that the LED screen displays normally, a user needs to manually adjust the color coordinate value of the target color gamut so that the target color gamut is within the original color gamut.

However, in the above calibration method, when the target color gamut exceeds the original color gamut, the user is required to manually adjust the color coordinate value of the target color gamut, so that the user operation is complicated, and the efficiency of color gamut calibration is low.

Disclosure of Invention

The embodiment of the application provides a method and a device for calibrating a color gamut of a light-emitting diode (LED) screen, which can simplify the operation of a user and improve the efficiency of color gamut calibration.

In a first aspect, an embodiment of the present application provides a method for calibrating a color gamut of a light emitting diode LED screen, including: receiving an operation instruction, wherein the operation instruction is used for instructing the terminal equipment to carry out color gamut calibration;

respectively determining a first color gamut and a second color gamut according to the operation instruction;

if at least one vertex coordinate of the second color gamut is outside the first color gamut, determining a target color gamut according to the first color gamut; the target color gamut is within the first color gamut;

and performing color gamut calibration on the LED screen according to the target color gamut.

Optionally, if at least one vertex coordinate of the second color gamut is outside the first color gamut, determining a target color gamut according to the first color gamut includes:

if at least one vertex coordinate of the second color gamut is outside the first color gamut and an intersection point exists between a frame of the first color gamut and a frame of the second color gamut, determining a coordinate corresponding to each vertex coordinate in the at least one vertex coordinate in the target color gamut according to the coordinates of the intersection point and the vertex coordinates of the first color gamut;

and determining the target color gamut according to the coordinates corresponding to each vertex coordinate in the at least one vertex coordinate in the target color gamut.

Optionally, the vertex coordinates of the first color gamut include a first coordinate, a second coordinate, and a third coordinate, and the vertex coordinates of the second color gamut include a fourth coordinate, a fifth coordinate, and a sixth coordinate;

if at least one vertex coordinate of the second color gamut is outside the first color gamut and an intersection point exists between a frame of the first color gamut and a frame of the second color gamut, determining a coordinate corresponding to each vertex coordinate of the at least one vertex coordinate in the target color gamut according to coordinates of the intersection point and the vertex coordinates of the first color gamut, including:

if the vertex coordinate corresponding to the fourth coordinate is outside the first color gamut, determining an intersection point between a frame where the fourth coordinate is located and the frame of the first color gamut, and determining a seventh coordinate corresponding to the fourth coordinate in the target color gamut according to the coordinate of the intersection point, the first coordinate and the fourth coordinate;

if the vertex coordinate corresponding to the fifth coordinate is outside the first color gamut, determining an intersection point between a frame where the fifth coordinate is located and the frame of the first color gamut, and determining an eighth coordinate corresponding to the fifth coordinate in the target color gamut according to the coordinate of the intersection point, the second coordinate and the fifth coordinate;

if the vertex coordinate corresponding to the sixth coordinate is outside the first color gamut, determining an intersection point between a frame where the sixth coordinate is located and the frame of the first color gamut, and determining a ninth coordinate corresponding to the sixth coordinate in the target color gamut according to the coordinate of the intersection point, the third coordinate and the sixth coordinate.

Optionally, the determining an intersection point between the frame where the fourth coordinate is located and the frame of the first color gamut, and determining a seventh coordinate corresponding to the fourth coordinate in the target color gamut according to the coordinate of the first intersection point, the first coordinate, and the fourth coordinate includes:

determining a first intersection point between a first frame determined by the first coordinate and the second coordinate and a second frame determined by the fourth coordinate and the sixth coordinate, and judging whether the abscissa of the first intersection point is larger than the abscissa of the first coordinate;

if the abscissa of the first intersection point is larger than the abscissa of the first coordinate, determining the first coordinate as the seventh coordinate;

and if the abscissa of the first intersection point is not greater than the abscissa of the first coordinate, determining the coordinate of the first intersection point as the seventh coordinate.

determining a second intersection point between a third frame determined by the first coordinate and the third coordinate and a fourth frame determined by the fourth coordinate and the fifth coordinate, and judging whether the abscissa of the second intersection point is larger than the abscissa of the first coordinate;

if the abscissa of the second intersection point is larger than the abscissa of the first coordinate, determining the first coordinate as the seventh coordinate;

and if the abscissa of the second intersection point is not greater than the abscissa of the first coordinate, determining the coordinate of the second intersection point as the seventh coordinate.

Optionally, the determining an intersection point between the frame where the fifth coordinate is located and the frame of the first color gamut, and determining an eighth coordinate corresponding to the fifth coordinate in the target color gamut according to the coordinate of the intersection point, the second coordinate, and the fifth coordinate includes:

determining a third intersection point between a first frame determined by the first coordinate and the second coordinate and a fifth frame determined by the fifth coordinate and the sixth coordinate, and judging whether the abscissa of the third intersection point is smaller than the abscissa of the second coordinate;

if the abscissa of the third intersection point is smaller than the abscissa of the second coordinate, determining the second coordinate as the eighth coordinate;

and if the abscissa of the third intersection point is not smaller than the abscissa of the second coordinate, determining the coordinate of the third intersection point as the eighth coordinate.

determining a fourth intersection point between a sixth frame determined by the second coordinate and the third coordinate and a fourth frame determined by the fourth coordinate and the fifth coordinate, and judging whether the ordinate of the fourth intersection point is greater than the ordinate of the second coordinate;

if the ordinate of the fourth intersection point is larger than the ordinate of the second coordinate, determining the second coordinate as the eighth coordinate;

and if the ordinate of the fourth intersection point is not greater than the ordinate of the second coordinate, determining the coordinate of the fourth intersection point as the eighth coordinate.

Optionally, the determining an intersection point between the frame where the sixth coordinate is located and the frame of the first color gamut, and determining a ninth coordinate corresponding to the sixth coordinate in the target color gamut according to the coordinate of the intersection point, the third coordinate, and the sixth coordinate includes:

determining a fifth intersection point between a third frame determined by the first coordinate and the third coordinate and a fifth frame determined by the fifth coordinate and the sixth coordinate, and judging whether the abscissa of the fifth intersection point is smaller than the abscissa of the third coordinate;

if the abscissa of the fifth intersection point is smaller than the abscissa of the third coordinate, determining the third coordinate as the ninth coordinate;

and if the abscissa of the fifth intersection point is not smaller than the abscissa of the third coordinate, determining the coordinate of the fifth intersection point as the ninth coordinate.

determining a sixth intersection point between a sixth frame determined by the second coordinate and the third coordinate and a second frame determined by the fourth coordinate and the sixth coordinate, and judging whether the ordinate of the sixth intersection point is smaller than the ordinate of the third coordinate;

if the ordinate of the sixth intersection point is smaller than the ordinate of the third coordinate, determining the third coordinate as the ninth coordinate;

and if the ordinate of the sixth intersection point is not less than the ordinate of the third coordinate, determining the coordinate of the sixth intersection point as the ninth coordinate.

and if all the vertex coordinates of the second color gamut are outside the first color gamut and no intersection point exists between the frame of the first color gamut and the frame of the second color gamut, determining the first color gamut as the target color gamut.

In a second aspect, an embodiment of the present application provides an LED screen color gamut calibrating apparatus, including:

the receiving module is used for receiving an operation instruction, and the operation instruction is used for indicating the terminal equipment to carry out color gamut calibration;

the determining module is used for respectively determining a first color gamut and a second color gamut according to the operation instruction;

the determining module is further configured to determine a target color gamut according to the first color gamut when at least one vertex coordinate of the second color gamut is outside the first color gamut; the target color gamut is within the first color gamut;

and the processing module is used for carrying out color gamut calibration on the LED screen according to the target color gamut.

Optionally, the determining module is specifically configured to:

the determining module is specifically configured to:

Optionally, the determining module is specifically configured to:

In a third aspect, an embodiment of the present application further provides a terminal device, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the processor, when executing the program, implements the method for calibrating the color gamut of the LED screen of the light emitting diode as described in any one of the possible implementations of the first aspect.

In a fourth aspect, the present application further provides a computer-readable storage medium, where computer instructions are stored, and when the computer instructions are executed on a computer, the computer is caused to execute the method for calibrating the color gamut of the LED panel of the light emitting diode according to any one of the possible implementations of the first aspect.

According to the method and the device for calibrating the color gamut of the LED screen, after an operation instruction for instructing the terminal device to calibrate the color gamut is received, the first color gamut and the second color gamut can be respectively determined according to the operation instruction, if at least one vertex coordinate of the second color gamut is outside the first color gamut, a target color gamut is determined according to the first color gamut, the target color gamut is within the first color gamut, and then the color gamut of the LED screen is calibrated according to the target color gamut. When at least one vertex coordinate of the second color gamut is outside the first color gamut, namely the second color gamut exceeds the first color gamut, the target color gamut within the first color gamut can be automatically determined according to the first color gamut, and the color gamut calibration is carried out on the LED screen according to the determined target color gamut, so that the phenomenon that a user needs to manually adjust the target color gamut can be avoided, the color gamut calibration efficiency is improved, and the determined target color gamut does not exceed the range of the first color gamut, so that the color gamut calibration accuracy can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of an original color gamut exceeding a target color gamut;

fig. 2 is a schematic flowchart of a method for calibrating a color gamut of an LED panel according to an embodiment of the present disclosure;

FIG. 3 is a diagram illustrating a trigger operation command;

fig. 4 is a schematic diagram of the first color gamut and the second color gamut;

fig. 5 is another schematic diagram of the first color gamut and the second color gamut;

fig. 6 is a further schematic diagram of the first gamut and the second gamut;

fig. 7 is a schematic structural diagram of an LED panel color gamut calibrating apparatus according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of an embodiment of a terminal device according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations 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.

In the embodiments of the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. In the description of the text of the present application, the character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

The method for calibrating the color gamut of the LED screen of the light-emitting diode is applied to the technical field of LED display screens, in particular to the technical field of color gamut calibration of the LED display screens applied to various terminal devices. Wherein, the terminal device includes but is not limited to: the mobile terminal such as a smart phone, a notebook, a wearable smart device and the like, and the fixed terminal such as a desktop computer, a smart television and the like, of course, other terminal devices provided with an LED display screen may also be included.

Fig. 1 is a schematic diagram of an original color gamut exceeding a target color gamut, and as shown in fig. 1, currently, after a user measures color coordinate values of three vertices R, G and B of the original color gamut through a colorimeter and inputs the color coordinate values into a terminal device, the terminal device may determine an original color gamut RGB. In addition, the user can input the color coordinate values of the three vertexes R ', G ' and B ' of the target color gamut to the terminal device according to the color gamut to be calibrated, and the terminal device can determine the target color gamut R ' G ' B ' according to the color coordinate values, so that the calibration of the color gamut can be realized according to the original color gamut RGB and the target color gamut R ' G ' B '. In practical applications, as shown in fig. 1, a situation that the target color gamut R ' G ' B ' exceeds the original color gamut RGB may occur, and when the target color gamut R ' G ' B ' exceeds the original color gamut RGB, in order to ensure that the LED screen normally displays, the user needs to manually adjust the color coordinate values of three vertices R ', G ', and B ' of the target color gamut R ' G ' B ', so that the target color gamut R ' G ' B ' is within the original color gamut RGB. However, in the above calibration method, when the target color gamut exceeds the original color gamut, the user is required to manually adjust the color coordinate value of the target color gamut, so that the user operation is complicated, and the efficiency of color gamut calibration is low.

In order to improve the efficiency of the color gamut calibration, it may be attempted to perform the color gamut calibration according to the target color gamut without re-inputting the color coordinate values of the target color gamut. However, in the above manner, since the target color gamut exceeds the range of the original color gamut, if the color gamut calibration is performed according to the target color gamut, a phenomenon that the color coordinate value of the original color gamut cannot reach the color coordinate value of the target color gamut may occur, which may cause abnormal display of the LED screen.

Based on the above discussion, in order to ensure normal display of an LED screen and improve efficiency of color gamut calibration, an embodiment of the present application provides a method for calibrating a color gamut of an LED screen, after receiving an operation instruction for instructing a terminal device to perform color gamut calibration, a first color gamut and a second color gamut may be respectively determined according to the operation instruction, if at least one vertex coordinate of the second color gamut is outside the first color gamut, a target color gamut is determined according to the first color gamut, and the target color gamut is within the first color gamut, and then color gamut calibration is performed on the LED screen according to the target color gamut. When at least one vertex coordinate of the second color gamut is outside the first color gamut, namely the second color gamut exceeds the first color gamut, the target color gamut within the first color gamut can be automatically determined according to the first color gamut, and the color gamut calibration is carried out on the LED screen according to the determined target color gamut, so that the phenomenon that a user needs to manually adjust the target color gamut can be avoided, the color gamut calibration efficiency is improved, and the determined target color gamut does not exceed the range of the first color gamut, so that the color gamut calibration accuracy can be improved.

The technical solution of the LED panel color gamut calibration method provided in the present application will be described in detail by using detailed embodiments. It is to be understood that the following detailed description may be combined with other embodiments, and that the same or similar concepts or processes may not be repeated in some embodiments.

Fig. 2 is a schematic flowchart of a method for calibrating a color gamut of an LED panel according to an embodiment of the present disclosure, where the method for calibrating a color gamut of an LED panel can be executed by an LED panel color gamut calibrating apparatus, and in the present disclosure, the apparatus can be integrated in a terminal device. For example, referring to fig. 2, the method for calibrating the color gamut of the LED panel may include:

step 201: and receiving an operation instruction, wherein the operation instruction is used for instructing the terminal device to carry out color gamut calibration.

In this step, if the color gamut calibration is required, the user may trigger an operation instruction to the terminal device. Fig. 3 is a schematic diagram of triggering an operation instruction, and as shown in fig. 3, a user can input the operation instruction to the terminal device by clicking a "conversion" button in the LED display screen. In addition, the operation instruction may be triggered by a user by clicking a certain button in a screen of the terminal device, may be triggered by voice, or may be triggered by pressing a certain physical key.

Step 202: according to the operation instruction, a first color gamut and a second color gamut are respectively determined.

In this step, after receiving the operation instruction, the terminal device determines the vertex coordinates of the first color gamut and the vertex coordinates of the second color gamut according to the operation instruction. The first color gamut is an original color gamut, and the second color gamut is an original target color gamut.

In a possible implementation manner, the vertex coordinates of the first color gamut may be input to the terminal device after the user measures the color coordinates by using a colorimeter, so that the terminal device may directly obtain the vertex coordinates of the first color gamut input by the user according to the operation instruction. The vertex coordinates of the second gamut may be input by the gamut calibrated by the user according to actual needs. As shown in fig. 3, it is assumed that the vertex coordinates of the first color gamut include a red coordinate, a green coordinate, and a blue coordinate, where the red coordinate is (0.679,0.314), the green coordinate is (0.168,0.712), and the blue coordinate is (0.138,0.069) measured by using a colorimeter, and after the user inputs the measured coordinates into the terminal device, the terminal device can obtain the vertex coordinates of the first color gamut. The coordinates of the second color gamut input into the terminal device by the user are red coordinates (0.640,0.330), green coordinates (0.260,0.600), and blue coordinates (0.150,0.078), respectively.

In another possible implementation manner, the user may also store the measured vertex coordinates of the first color gamut into the terminal device in advance, so that the terminal device may directly obtain the vertex coordinates of the first color gamut according to the coordinate values stored in advance after receiving the operation instruction.

Similarly, the vertex coordinates of the second color gamut may be input by the user according to the color gamut to be calibrated. As shown in fig. 3, the coordinates of the second color gamut input into the terminal device by the user are red coordinates (0.640,0.330), green coordinates (0.260,0.600), and blue coordinates (0.150,0.078), respectively. In this way, the terminal device can directly acquire the vertex coordinates of the second color gamut input by the user according to the operation instruction.

In addition, the user may also store the vertex coordinates of the second color gamut to be calibrated in the terminal device in advance, so that the terminal device may directly obtain the vertex coordinates of the second color gamut according to the pre-stored coordinate values after receiving the operation instruction.

It is understood that, after determining all the vertex coordinates of the first color gamut, the terminal device may determine the first color gamut according to the vertex coordinates. For example, from the coordinate values shown in fig. 3, it can be determined that the first color gamut is triangular. Similarly, the second color gamut may be determined according to all the acquired vertex coordinates of the second color gamut, for example, according to the coordinate values shown in fig. 3, the determined second color gamut is also a triangle.

Step 203: if at least one vertex coordinate of the second color gamut is outside the first color gamut, determining a target color gamut according to the first color gamut, wherein the target color gamut is within the first color gamut.

In this step, if at least one vertex coordinate of the second color gamut is outside the first color gamut, it indicates that the second color gamut is beyond the range of the first color gamut, and at this time, if the color gamut calibration is performed according to the second color gamut, a phenomenon that the color coordinate value of the first color gamut does not reach the color coordinate value of the second color gamut may occur, thereby causing abnormal display of the LED screen. In the present application, in order to solve the problem, when the second color gamut exceeds the range of the first color gamut, the target color gamut may be determined according to the first color gamut, and the determined target color gamut is within the first color gamut, that is, the target color gamut does not exceed the range of the first color gamut, so that when performing color gamut calibration according to the determined target color gamut, the accuracy of color gamut calibration may be improved.

Next, a process of how to determine the target color gamut from the first color gamut will be described in detail.

In one possible implementation manner, if all the vertex coordinates of the second color gamut are outside the first color gamut and there is no intersection point between the frame of the first color gamut and the frame of the second color gamut, the first color gamut is determined as the target color gamut.

Specifically, as shown in fig. 3, if the first color gamut is RGB, the second color gamut is R 'G' B ', and the three vertexes R', G ', and B' of the second color gamut R 'G' B 'are all outside the first color gamut RGB, and there is no intersection between the frame of the first color gamut RGB and the frame of the second color gamut R' G 'B', the first color gamut RGB may be determined as the target color gamut. The target color gamut determined by the method can be as close to the second color gamut as possible, so that the accuracy of color gamut calibration can be improved when the color gamut calibration is carried out according to the target color gamut.

In another possible implementation manner, if at least one vertex coordinate of the second color gamut is outside the first color gamut and an intersection exists between a frame of the first color gamut and a frame of the second color gamut, a target coordinate corresponding to each vertex coordinate in the at least one vertex coordinate in the target color gamut is determined according to coordinates of the intersection and the vertex coordinates of the first color gamut, and then the target color gamut is determined according to coordinates corresponding to each vertex coordinate in the at least one vertex coordinate in the target color gamut.

Specifically, fig. 4 is a schematic diagram of the first color gamut and the second color gamut, and as shown in fig. 4, it is assumed that the first color gamut is RGB, the second color gamut is R ' G ' B ', the vertex coordinates R ' and the vertex coordinates G ' of the second color gamut are both outside the first color gamut RGB, and the frame RG of the first color gamut RGB and the frame G 'B' of the second color gamut R 'G' B 'have an intersection point a, and the frame RG of the first color gamut RGB and the frame B' R 'of the second color gamut R' G 'B' have an intersection point B, at this time, in order to ensure that the determined target color gamut does not exceed the range of the first color gamut RGB, from the intersection a and the vertex coordinates G of the first color gamut, coordinates in the target color gamut corresponding to the vertex coordinates G' of the second color gamut can be determined, and determining the coordinates corresponding to the vertex coordinates R' of the second color gamut in the target color gamut according to the intersection point b and the vertex coordinates R of the first color gamut.

Since the vertex coordinates B ' of the second color gamut are within the first color gamut RGB, the coordinates corresponding to the vertex coordinates B ' of the second color gamut in the target color gamut are the vertex coordinates B ' within the first color gamut RGB.

After the three coordinate values of the target color gamut are determined, the target color gamut can be determined according to the three coordinate values.

In this embodiment, if at least one vertex coordinate of the second color gamut is outside the first color gamut and an intersection exists between a frame of the first color gamut and a frame of the second color gamut, a coordinate corresponding to each vertex coordinate of the at least one vertex coordinate in the target color gamut is determined according to the coordinates of the intersection and the vertex coordinates of the first color gamut, and then the target color gamut is determined according to the coordinates corresponding to each vertex coordinate of the at least one vertex coordinate in the target color gamut, so that the determined target color gamut is ensured not to exceed the range of the first color gamut.

In the following, the first color gamut and the second color gamut are both triangular regions for example, and the implementation process of the first color gamut and the second color gamut being regions with other shapes is similar to the implementation process of the first color gamut and the second color gamut being triangular regions, and is not described herein again.

It is assumed that the vertex coordinates of the first gamut include first, second, and third coordinates, and the vertex coordinates of the second gamut include fourth, fifth, and sixth coordinates. For example, if the vertex coordinate corresponding to the fourth coordinate is outside the first color gamut, an intersection point between a frame where the fourth coordinate is located and a frame of the first color gamut is determined, and a seventh coordinate corresponding to the fourth coordinate in the target color gamut is determined according to the coordinate of the intersection point, the first coordinate, and the fourth coordinate.

Specifically, assuming that the first color gamut is RGB, and the vertex coordinates of the first color gamut include a first coordinate R (Xr, Yr), a second coordinate G (Xg, Yg), and a third coordinate B (Xb, Yb), three straight lines are determined to be RG respectively according to the three coordinates: y — k1 × x + b1, RB: y-k 2 x + b2, GB: y k3 x + b 3. The second color gamut is R 'G' B ', and the vertex coordinates of the second color gamut include a fourth coordinate R' (Xr ', Yr'), a fifth coordinate G '(Xg', Yg ') and a sixth coordinate B' (Xb ', Yb'), from which three straight lines are determined as R 'G', respectively: y-k 4 x + B4, R 'B': y-k 5 x + B5, G 'B': y k6 x + b 6.

It is understood that Yr '1 is obtained by substituting the abscissa Xr' of the fourth coordinate R 'into the straight line RG, and Yr' 2 is obtained by substituting the abscissa Xr 'of R' into the straight line RB.

In one implementation mode, a first intersection point between a first frame determined by a first coordinate and a second frame determined by a fourth coordinate and a sixth coordinate is determined, and whether the abscissa of the first intersection point is larger than the abscissa of the first coordinate is judged; if the abscissa of the first intersection point is larger than the abscissa of the first coordinate, determining the first coordinate as a seventh coordinate; and if the abscissa of the first intersection point is not greater than the abscissa of the first coordinate, determining the coordinate of the first intersection point as a seventh coordinate.

Specifically, when Yr ' is greater than Yr ' 1 and Yr ' is greater than or equal to Yr ' 2, the vertex corresponding to the fourth coordinate R ' is outside RGB of the first color gamut, and at this time, a first frame defined by the first coordinate R (Xr, Yr) and the second coordinate G (Xg, Yg), that is, the first straight line RG, and a second frame defined by the fourth coordinate R ' (Xr ', Yr ') and the sixth coordinate B ' (Xb ', Yb '), that is, a first intersection R1(Xr1, Yr1) between the second straight line R ' B ' may be determined.

When the abscissa Xr1 of the first intersection R1 is greater than the abscissa Xr of the first coordinate R (Xr, Yr), the seventh coordinate Rt (Xrt, Yrt) of the target color gamut is the first coordinate R (Xr, Yr). When the abscissa Xr1 of the first intersection R1 is not greater than the abscissa Xr of the first coordinate R (Xr, Yr), the seventh coordinate Rt (Xrt, Yrt) of the target color gamut is the coordinate R1(Xr1, Yr1) of the first intersection.

In this embodiment, the seventh coordinate of the target color gamut is determined by determining the relationship between the abscissa of the first intersection point and the abscissa of the first coordinate, so that the determined seventh coordinate is as close as possible to the fourth coordinate corresponding to the seventh coordinate in the second color gamut, and when performing color gamut matching according to the target color gamut, the accuracy of color gamut matching can be improved.

In another implementation mode, a second intersection point between a third frame determined by the first coordinate and the third coordinate and a fourth frame determined by the fourth coordinate and the fifth coordinate is determined, and whether the abscissa of the second intersection point is larger than the abscissa of the first coordinate or not is judged; if the abscissa of the second intersection point is larger than the abscissa of the first coordinate, determining the first coordinate as a seventh coordinate; and if the abscissa of the second intersection point is not greater than the abscissa of the first coordinate, determining the coordinate of the second intersection point as a seventh coordinate.

Specifically, when Yr ' is equal to or less than Yr ' 1 and Yr ' is less than Yr ' 2, the vertex corresponding to the fourth coordinate R ' is outside RGB outside the first color gamut, and at this time, a third frame defined by the first coordinate R (Xr, Yr) and the third coordinate B (Xb, Yb), that is, a third straight line RB, and a fourth frame defined by the fourth coordinate R ' (Xr ', Yr ') and the fifth coordinate G ' (Xg ', Yg '), that is, a second intersection R2(Xr2, Yr2) between the fourth straight line R ' G ' may be determined.

When the abscissa Xr2 of the second intersection R2 is equal to or less than the abscissa Xr of the first coordinate R (Xr, Yr), the seventh coordinate Rt (Xrt, Yrt) of the target color gamut is the coordinate R2(Xr2, Yr2) of the second intersection. When the abscissa Xr2 of the second intersection R2 is greater than the abscissa Xr of the first coordinate R (Xr, Yr), the seventh coordinate Rt (Xrt, Yrt) of the target color gamut is the first coordinate R (Xr, Yr).

In this embodiment, the seventh coordinate of the target color gamut is determined by determining the relationship between the abscissa of the second intersection point and the abscissa of the first coordinate, so that the determined seventh coordinate is as close as possible to the fourth coordinate corresponding to the seventh coordinate in the second color gamut, and when performing color gamut matching according to the target color gamut, the accuracy of color gamut matching can be improved.

In yet another possible implementation manner, if the ordinate Yr 'of the fourth coordinate R' (Xr ', Yr') is less than or equal to Yr '1 and Yr' is greater than or equal to Yr '2, it is indicated that the fourth coordinate does not exceed the range of the first color gamut, and in this case, the fourth coordinate R' (Xr ', Yr') of the second color gamut may be directly determined as the seventh coordinate Rt (Xrt, Yrt) of the target color gamut.

In this embodiment, when the coordinates of the second color gamut do not exceed the range of the first color gamut, the coordinates of the second color gamut may be directly determined as the coordinates of the target color gamut, and thus the accuracy of color gamut matching may be improved.

In yet another possible implementation manner, if the ordinate Yr ' of the fourth coordinate R ' (Xr ', Yr ') is greater than Yr ' 1 and Yr ' is less than Yr ' 2, it is determined that the fourth coordinate is beyond the range of the first color gamut, and at this time, the first coordinate R (Xr, Yr) of the first color gamut is determined as the seventh coordinate Rt (Xrt, Yrt) of the target color gamut.

In this embodiment, when the coordinates of the second color gamut are out of the range of the first color gamut, the coordinates of the first color gamut may be determined as the coordinates of the target color gamut, whereby the accuracy of color gamut matching may be improved.

For example, if the vertex coordinate corresponding to the fifth coordinate is outside the first color gamut, an intersection point between a frame where the fifth coordinate is located and a frame of the first color gamut is determined, and an eighth coordinate corresponding to the fifth coordinate in the target color gamut is determined according to the coordinate of the intersection point, the second coordinate, and the fifth coordinate.

It is understood that Yg '1 can be obtained by substituting the abscissa Xg' of the fifth coordinate G 'into the straight line RG, and Xg' 1 can be obtained by substituting the ordinate Yg 'of the fifth coordinate G' into the straight line GB.

In one implementation mode, a third intersection point between a first frame determined by a first coordinate and a second coordinate and a fifth frame determined by a fifth coordinate and a sixth coordinate is determined, and whether the abscissa of the third intersection point is smaller than the abscissa of the second coordinate is judged; if the abscissa of the third intersection point is smaller than the abscissa of the second coordinate, determining the second coordinate as an eighth coordinate; and if the abscissa of the third intersection point is not less than the abscissa of the second coordinate, determining the coordinate of the third intersection point as an eighth coordinate.

Specifically, when Yg ' is greater than Yg ' 1 and Xg ' is greater than or equal to Xg ' 1, the vertex corresponding to the fifth coordinate G ' is outside RGB of the first color gamut, and at this time, the first frame determined by the first coordinate R (Xr, Yr) and the second coordinate G (Xg, Yg), that is, the first straight line RG, and the fifth frame determined by the fifth coordinate G ' (Xg ', Yg ') and the sixth coordinate B ' (Xb ', Yb '), that is, the third intersection point G1(Xg1, Yg1) between the fifth straight line G ' B ' may be determined.

When the abscissa Xg1 of the third intersection G1 is equal to or greater than the abscissa Xg of the second coordinate G (Xg, Yg), the eighth coordinate Gt (Xgt, Ygt) of the target color gamut is the coordinate G1(Xg1, Yg1) of the third intersection. When the abscissa Xg1 of the third intersection G1 is smaller than the abscissa Xg of the second coordinate G (Xg, Yg), the eighth coordinate Gt (Xgt, Ygt) of the target color gamut is the second coordinate G (Xg, Yg).

In this embodiment, the eighth coordinate of the target color gamut is determined by determining the relationship between the abscissa of the third intersection point and the abscissa of the second coordinate, so that the determined eighth coordinate is as close as possible to the fifth coordinate corresponding to the eighth coordinate in the second color gamut, and when performing color gamut matching according to the target color gamut, the accuracy of color gamut matching can be improved.

In another implementation manner, a fourth intersection point between a sixth frame determined by the second coordinate and the third coordinate and a fourth frame determined by the fourth coordinate and the fifth coordinate is determined, and whether the ordinate of the fourth intersection point is greater than the ordinate of the second coordinate or not is judged; if the ordinate of the fourth intersection point is larger than the ordinate of the second coordinate, determining the second coordinate as an eighth coordinate; and if the ordinate of the fourth intersection point is not greater than the ordinate of the second coordinate, determining the coordinate of the fourth intersection point as the eighth coordinate.

Specifically, when Yg ' is less than or equal to Yg ' 1 and Xg ' is less than Xg ' 1, the vertex corresponding to the fifth coordinate G ' is outside RGB of the first color gamut, and at this time, a sixth frame defined by the second coordinate G (Xg, Yg) and the third coordinate B (Xb, Yb), that is, a third straight line GB, and a fourth frame defined by the fourth coordinate R ' (Xr ', Yr ') and the fifth coordinate G ' (Xg ', Yg '), that is, a fourth intersection G2(Xg2, Yg2) between the fourth straight line R ' G ' may be determined.

When the ordinate Yg2 of the fourth intersection point G2 is equal to or less than the ordinate Yg of the second coordinate G (Xg, Yg), the eighth coordinate Gt (Xgt, Ygt) of the target color gamut is the coordinate G2(Xg2, Yg2) of the fourth intersection point. When the ordinate Yg2 of the fourth intersection G2 is greater than the ordinate Yg of the second coordinate G (Xg, Yg), the eighth coordinate Gt (Xgt, Ygt) of the target color gamut is the second coordinate G (Xg, Yg).

In this embodiment, the eighth coordinate of the target color gamut is determined by determining the relationship between the ordinate of the fourth intersection point and the ordinate of the second coordinate, so that the determined eighth coordinate is as close as possible to the fifth coordinate corresponding to the eighth coordinate in the second color gamut, and when performing color gamut matching according to the target color gamut, the accuracy of color gamut matching can be improved.

In yet another possible implementation manner, if the ordinate Yg 'of the fifth coordinate G' (Xg ', Yg') is less than or equal to Yg '1 and Xg' is greater than or equal to Xg '1, it indicates that the fifth coordinate does not exceed the range of the first color gamut, in this case, the fifth coordinate G' (Xg ', Yg') of the second color gamut may be directly determined as the eighth coordinate Gt (Xgt, Ygt) of the target color gamut.

In yet another possible implementation manner, if the ordinate Yg ' of the fifth coordinate G ' (Xg ', Yg ') is greater than Yg ' 1 and Xg ' is less than Xg ' 1, it indicates that the fifth coordinate is beyond the range of the first color gamut, and at this time, the second coordinate G (Xg, Yg) of the first color gamut is determined as the eighth coordinate Gt (Xgt, Ygt) of the target color gamut.

For example, if the vertex coordinate corresponding to the sixth coordinate is outside the first color gamut, an intersection point between a frame where the sixth coordinate is located and the frame of the first color gamut is determined, and a ninth coordinate corresponding to the sixth coordinate in the target color gamut is determined according to the coordinate of the intersection point, the third coordinate and the sixth coordinate.

It is understood that by substituting the abscissa Xb 'of the sixth coordinate B' (Xb ', Yb') into the straight line RB, Yb '1 can be obtained, and by substituting the ordinate Yb' of the sixth coordinate B '(Xb', Yb ') into the straight line GB, Xb' 1 can be obtained.

In one implementation mode, a fifth intersection point between a third frame determined by the first coordinate and the third coordinate and a fifth frame determined by the fifth coordinate and the sixth coordinate is determined, and whether the abscissa of the fifth intersection point is smaller than the abscissa of the third coordinate is judged; if the abscissa of the fifth intersection point is smaller than the abscissa of the third coordinate, determining the third coordinate as a ninth coordinate; and if the abscissa of the fifth intersection point is not less than the abscissa of the third coordinate, determining the coordinate of the fifth intersection point as a ninth coordinate.

Specifically, when Yb ' is smaller than Yb ' 1 and Xb ' is greater than or equal to Xb ' 1, the vertex corresponding to the sixth coordinate B ' is outside RGB outside the first color gamut, and at this time, a third frame determined by the first coordinate R (Xr, Yr) and the third coordinate B (Xb, Yb), that is, the first straight line RB, and a fifth frame determined by the fifth coordinate G ' (Xg ', Yg ') and the sixth coordinate B ' (Xb ', Yb '), that is, a fifth intersection point B1(Xb1, Yb1) between the fifth frame and the fifth straight line G ' B ' may be determined.

When the abscissa Xb1 of the fifth intersection B1 is equal to or greater than the abscissa Xb of the third coordinate B (Xb, Yb), the ninth coordinate Bt (Xbt, Ybt) of the target color gamut is the coordinate B1(Xb1, Yb1) of the fifth intersection. When the abscissa Xb1 of the fifth intersection B1 is smaller than the abscissa Xb of the third coordinate B (Xb, Yb), the ninth coordinate Bt (Xbt, Ybt) of the target color gamut is the third coordinate B (Xb, Yb).

In this embodiment, the ninth coordinate of the target color gamut is determined by determining the relationship between the abscissa of the fifth intersection point and the abscissa of the third coordinate, so that the determined ninth coordinate is as close as possible to the sixth coordinate corresponding to the ninth coordinate in the second color gamut, and when performing color gamut matching according to the target color gamut, the accuracy of color gamut matching can be improved.

In another implementation manner, a sixth intersection point between a sixth frame determined by the second coordinate and the third coordinate and a second frame determined by the fourth coordinate and the sixth coordinate is determined, and whether the ordinate of the sixth intersection point is smaller than the ordinate of the third coordinate is judged; if the ordinate of the sixth intersection point is smaller than the ordinate of the third coordinate, determining the third coordinate as a ninth coordinate; and if the ordinate of the sixth intersection point is not less than the ordinate of the third coordinate, determining the coordinate of the sixth intersection point as the ninth coordinate.

Specifically, when Yb 'is greater than or equal to Yb' 1 and Xb 'is less than Xb' 1, the vertex corresponding to the sixth coordinate B 'is outside RGB outside the first color gamut, and at this time, a sixth frame determined by the second coordinate G (Xg, Yg) and the third coordinate B (Xb, Yb), that is, the third straight line GB, and a second frame determined by the fourth coordinate R' (Xr ', Yr') and the sixth coordinate B '(Xb', Yb '), that is, a sixth intersection B2(Xb2, Yb2) between the fourth straight line R' B 'and the sixth coordinate B' (Xb ', Yb') may be determined.

When the ordinate Yb2 of the sixth intersection point B2 is equal to or greater than the ordinate Yb of the third coordinate B (Xb, Yb), the ninth coordinate Bt (Xbt, Ybt) of the target color gamut is the coordinate B2(Xb2, Yb2) of the sixth intersection point. When the ordinate Yb2 of the sixth intersection B2 is smaller than the ordinate Yb of the third coordinate B (Xb, Yb), the ninth coordinate Bt (Xbt, Ybt) of the target color gamut is the third coordinate B (Xb, Yb).

In this embodiment, the ninth coordinate of the target color gamut is determined by determining the relationship between the ordinate of the sixth intersection point and the ordinate of the third coordinate, so that the determined ninth coordinate is as close as possible to the sixth coordinate corresponding to the ninth coordinate in the second color gamut, and when performing color gamut matching according to the target color gamut, the accuracy of color gamut matching can be improved.

In yet another possible implementation manner, if the ordinate Yb 'of the sixth coordinate B' (Xb ', Yb') is greater than or equal to Yb '1 and Xb' is greater than or equal to Xb '1, it indicates that the sixth coordinate does not exceed the range of the first color gamut, and in this case, the sixth coordinate B' (Xb ', Yb') of the second color gamut may be directly determined as the ninth coordinate Bt (Xbt, Ybt) of the target color gamut.

In still another possible implementation, if the ordinate Yb ' of the sixth coordinate B ' (Xb ', Yb ') is smaller than Yb ' 1 and Xb ' is smaller than Xb ' 1, it indicates that the sixth coordinate is out of the range of the first color gamut, and at this time, the third coordinate B (Xb, Yb) of the first color gamut is determined as the ninth coordinate Bt (Xbt, Ybt) of the target color gamut.

After the seventh coordinate, the eighth coordinate, and the ninth coordinate are determined according to the above manner, the target color gamut can be determined.

Step 204: and performing color gamut calibration on the LED screen according to the target color gamut.

In this step, after the terminal device determines the target color gamut, the color gamut of the LED screen applied to the terminal device may be calibrated according to the target color gamut.

According to the method for calibrating the color gamut of the light-emitting diode LED screen, after an operation instruction for instructing the terminal device to calibrate the color gamut is received, the first color gamut and the second color gamut can be respectively determined according to the operation instruction, if at least one vertex coordinate of the second color gamut is outside the first color gamut, a target color gamut is determined according to the first color gamut, the target color gamut is within the first color gamut, and then the color gamut of the LED screen is calibrated according to the target color gamut. When at least one vertex coordinate of the second color gamut is outside the first color gamut, namely the second color gamut exceeds the first color gamut, the target color gamut within the first color gamut can be automatically determined according to the first color gamut, and the color gamut calibration is carried out on the LED screen according to the determined target color gamut, so that the phenomenon that a user needs to manually adjust the target color gamut can be avoided, the color gamut calibration efficiency is improved, and the determined target color gamut does not exceed the range of the first color gamut, so that the color gamut calibration accuracy can be improved.

The manner in which the target color gamut is determined is explained in detail below in several specific examples.

Fig. 5 is another schematic diagram of the first color gamut and the second color gamut, and as shown in fig. 5, Yr ' 1 can be obtained by substituting the abscissa Xr ' of the fourth coordinate R ' of the second color gamut into the straight line RG, and Yr ' 2 is obtained by substituting the abscissa Xr ' of R ' into the straight line RB, in which case, the ordinate Yr ' of the fourth coordinate R ' (Xr ', Yr ') of the second color gamut is greater than Yr ' 1 and Yr ' is less than Yr ' 2, and the seventh coordinate Rt (Xrt, Yrt) of the target color gamut is the first coordinate R (Xr, Yr) of the first color gamut.

If the ordinate Yg 'of the fifth coordinate G' (Xg ', Yg') is equal to or less than Yg '1 and Xg' is equal to or greater than Xg '1, the eighth coordinate Gt (Xgt, Ygt) of the target color gamut is the fifth coordinate G' (Xg ', Yg') of the second color gamut when Yg 'of the fifth coordinate G' (Xg ', Yg') is equal to or less than Yg '1 and Xg' is equal to or greater than Xg '1, Yg' 1 is obtained by substituting the abscissa Xg 'of the fifth coordinate G' into the straight line RG.

By substituting the abscissa Xb ' of the sixth coordinate B ' (Xb ', Yb ') into the straight line RB, Yb ' 1 can be obtained, and by substituting the ordinate Yb ' of the sixth coordinate B ' (Xb ', Yb ') into the straight line GB, Xb ' 1 can be obtained, where the ordinate Yb ' of the sixth coordinate B ' (Xb ', Yb ') is smaller than Yb ' 1 and Xb ' is smaller than Xb ' 1, and the ninth coordinate Bt (Xbt, Ybt) of the target color gamut is the third coordinate B (Xb, Yb) of the first color gamut.

Therefore, the target color gamut can be determined to be R G' B according to the determined seventh coordinates Rt (Xrt, Yrt), Gt (Xgt, Ygt) and the ninth coordinates Bt (Xbt, Ybt).

Fig. 6 is a further schematic diagram of the first color gamut and the second color gamut, and as shown in fig. 6, Yr ' 1 can be obtained by substituting the abscissa Xr ' of the fourth coordinate R ' of the second color gamut into the straight line RG, and Yr ' 2 is obtained by substituting the abscissa Xr ' of R ' into the straight line RB, in which case, the ordinate Yr ' of the fourth coordinate R ' (Xr ', Yr ') of the second color gamut is greater than Yr ' 1 and Yr ' is less than Yr ' 2, and the seventh coordinate Rt (Xrt, Yrt) of the target color gamut is the first coordinate R (Xr, Yr) of the first color gamut. At this time, Yr 'is equal to or less than Yr' 1 and Yr 'is less than Yr' 2, a second intersection point between the third straight line RB and the fourth straight line R 'G' is R2(Xr2, Yr2), and an abscissa Xr2 of the second intersection point R2 is equal to or less than an abscissa Xr of the first coordinate R (Xr, Yr), a seventh coordinate Rt (Xrt, Yrt) of the target color gamut is a coordinate R2(Xr2, Yr2) of the second intersection point.

If the ordinate Yg ' of the fifth coordinate G ' (Xg ', Yg ') is greater than Yg ' 1 and Xg ' is less than Xg ' 1, the eighth coordinate Gt (Xgt, Ygt) of the target color gamut is the second coordinate G (Xg, Yg) of the first color gamut, Yg ' 1 is obtained by substituting the abscissa Xg ' of the fifth coordinate G ' into the straight line RG, and Xg ' 1 is obtained by substituting the ordinate Yg ' of the fifth coordinate G ' into the straight line GB.

When the abscissa Xb 'of the sixth coordinate B' (Xb ', Yb') is substituted into the straight line RB, Yb '1 can be obtained, and the ordinate Yb' of the sixth coordinate B '(Xb', Yb ') is substituted into the straight line GB, Xb' 1 can be obtained, and when the ordinate Yb 'of the sixth coordinate B' (Xb ', Yb') is greater than or equal to Yb '1 and Xb' is greater than or equal to Xb '1, the ninth coordinate Bt (Xbt, Ybt) of the target color gamut is the sixth coordinate B' (Xb ', Yb') of the second color gamut.

Therefore, the target color gamut may be determined to be R2G B' according to the determined seventh coordinates Rt (Xrt, Yrt), Gt (Xgt, Ygt) and the ninth coordinates Bt (Xbt, Ybt).

Fig. 7 is a schematic structural diagram of an LED panel color gamut calibrating device 70 according to an embodiment of the present disclosure, for example, please refer to fig. 7, where the LED panel color gamut calibrating device 70 may include:

a receiving module 71, configured to receive an operation instruction, where the operation instruction is used to instruct a terminal device to perform color gamut calibration;

a determining module 72, configured to determine, according to the operation instruction, a first color gamut and a second color gamut respectively;

the determining module 72 is further configured to determine a target color gamut according to the first color gamut when at least one vertex coordinate of the second color gamut is outside the first color gamut; the target color gamut is within the first color gamut;

and the processing module 73 is configured to perform color gamut calibration on the LED screen according to the target color gamut.

Optionally, the determining module 72 is specifically configured to:

the determining module 72 is specifically configured to:

Optionally, the determining module 72 is specifically configured to:

The LED screen color gamut calibration apparatus 70 provided in this embodiment of the application can execute the technical solution of the LED screen color gamut calibration method in any of the above embodiments, and the implementation principle and the beneficial effects thereof are similar to those of the LED screen color gamut calibration method, and reference may be made to the implementation principle and the beneficial effects of the LED screen color gamut calibration method, which is not described herein again.

It should be noted that the division of the modules of the above apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the determining module may be a processing element that is separately set up, or may be implemented by being integrated into a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the determining module may be called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when some of the above modules are implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor that can call program code. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Fig. 8 is a schematic structural diagram of an embodiment of a terminal device according to an embodiment of the present application. As shown in fig. 8, the terminal device may include: the calibration method comprises a processor 801, a memory 802, a communication interface 803 and a system bus 804, wherein the memory 802 and the communication interface 803 are connected with the processor 801 through the system bus 804 and complete mutual communication, the memory 802 is used for storing computer execution instructions, the communication interface 803 is used for communicating with other equipment, and the technical scheme of the LED screen color gamut calibration method shown in the embodiment is realized when the processor 801 executes the computer program.

In fig. 8, the processor 801 may be a general-purpose processor, including a central processing unit CPU, a Network Processor (NP), and the like; but also a digital signal processor DSP, an application specific integrated circuit ASIC, a field programmable gate array FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components.

The memory 802 may include a Random Access Memory (RAM), a read-only memory (RAM), and a non-volatile memory (non-volatile) such as at least one disk memory.

The communication interface 803 is used to enable communication between the database access device and other devices (e.g., clients, read-write libraries, and read-only libraries).

The system bus 804 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The system bus may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.

Optionally, an embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and when the computer instructions are run on a computer, the computer is enabled to execute the technical solution of the LED screen color gamut calibration method shown in the foregoing embodiment.

Optionally, an embodiment of the present application further provides a chip for executing the instruction, where the chip is used to execute the technical scheme of the LED screen color gamut calibration method shown in the foregoing embodiment.

The embodiment of the present application further provides a program product, where the program product includes a computer program, where the computer program is stored in a computer-readable storage medium, and the computer program can be read from the computer-readable storage medium by at least one processor, and when the at least one processor executes the computer program, the technical solution of the LED screen color gamut calibration method shown in the foregoing embodiment can be implemented by the at least one processor.

Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A method for calibrating the color gamut of an LED screen of a Light Emitting Diode (LED) is characterized by comprising the following steps:

receiving an operation instruction, wherein the operation instruction is used for instructing the terminal equipment to carry out color gamut calibration;

2. The method of claim 1, wherein determining a target color gamut from the first color gamut if at least one vertex coordinate of the second color gamut is outside the first color gamut comprises:

3. The method of claim 2, wherein the vertex coordinates of the first color gamut comprise a first coordinate, a second coordinate, and a third coordinate, and wherein the vertex coordinates of the second color gamut comprise a fourth coordinate, a fifth coordinate, and a sixth coordinate;

4. The method according to claim 3, wherein the determining an intersection point between the border where the fourth coordinate is located and the border of the first color gamut, and determining a seventh coordinate corresponding to the fourth coordinate in the target color gamut according to the coordinate of the intersection point, the first coordinate, and the fourth coordinate comprises:

5. The method according to claim 3, wherein the determining an intersection point between the border where the fourth coordinate is located and the border of the first color gamut, and determining a seventh coordinate corresponding to the fourth coordinate in the target color gamut according to the coordinate of the intersection point, the first coordinate, and the fourth coordinate comprises:

6. The method according to claim 3, wherein the determining an intersection point between the border where the fifth coordinate is located and the border of the first color gamut, and determining an eighth coordinate corresponding to the fifth coordinate in the target color gamut according to the coordinate of the intersection point, the second coordinate, and the fifth coordinate comprises:

7. The method according to claim 3, wherein the determining an intersection point between the border where the fifth coordinate is located and the border of the first color gamut, and determining an eighth coordinate corresponding to the fifth coordinate in the target color gamut according to the coordinate of the intersection point, the second coordinate, and the fifth coordinate comprises:

8. The method according to claim 3, wherein the determining an intersection point between the frame where the sixth coordinate is located and the frame of the first color gamut, and determining a ninth coordinate corresponding to the sixth coordinate in the target color gamut according to the coordinate of the intersection point, the third coordinate, and the sixth coordinate comprises:

9. The method according to claim 3, wherein the determining an intersection point between the frame where the sixth coordinate is located and the frame of the first color gamut, and determining a ninth coordinate corresponding to the sixth coordinate in the target color gamut according to the coordinate of the intersection point, the third coordinate, and the sixth coordinate comprises:

10. The method of claim 1, wherein determining a target color gamut from the first color gamut if at least one vertex coordinate of the second color gamut is outside the first color gamut comprises:

11. A color gamut calibration device for a Light Emitting Diode (LED) screen, comprising:

12. A terminal device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the LED panel color gamut calibration method according to any one of claims 1 to 10.

13. A computer-readable storage medium, wherein computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed on a computer, the computer is caused to execute the LED screen color gamut calibration method according to any one of claims 1 to 10.