CN113674711B - Low gray scale color temperature regulation and control method, device, equipment and storage medium - Google Patents
Low gray scale color temperature regulation and control method, device, equipment and storage medium Download PDFInfo
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Abstract
The application discloses a low-gray-scale color temperature regulation and control method, device, equipment and storage medium, and belongs to the technical field of display. This application is through when display panel carries out image display, acquire regulatory coefficient and regulation colour temperature value, right according to the Bessel functional relation regulatory coefficient with adjust the colour temperature value and carry out the fitting calculation, obtain target chromaticity coordinates, will target chromaticity coordinates converts target colour temperature value into, according to target colour temperature value automatically regulated display panel's demonstration colour temperature. According to the method and the device, the target chromaticity coordinate is obtained through fitting calculation of the regulation coefficient and the regulation color temperature value according to the smoothness and the controllability of the Bessel curve, and the display color temperature of the display panel is automatically regulated according to the target chromaticity value corresponding to the target chromaticity coordinate, so that the low gray scale is smoothly transited to the high gray scale, and the picture display effect is improved.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a method, an apparatus, a device and a storage medium for regulating and controlling a low gray scale color temperature.
Background
The liquid crystal panel has different transmittances for light with different wavelengths, and the transmittance of light with short wavelengths is usually high, so that the gamma characteristics of red, green and blue (RGB) are different, and the color coordinates of white dots at medium and high gray levels cannot be kept consistent. At present, when the low gray scale white balance is calculated by using a linear interpolation algorithm, the smoothness and the smoothness of a curve cannot be ensured, and the curve is particularly obvious at a transition gray scale, so that the low gray scale color level change is relatively sharp under the feeling of human eyes.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
Disclosure of Invention
The present application mainly aims to provide a method, an apparatus, a device and a storage medium for regulating and controlling a low-gray-scale color temperature, and aims to solve the technical problem that a single gray-scale gamma curve in the prior art cannot realize the optimal adjustment of three colors of RGB.
In order to achieve the above object, the present application provides a low gray scale color temperature control method, including:
when the display panel displays images, acquiring a regulation and control coefficient and a regulation color temperature value;
fitting and calculating the regulating and controlling coefficient and the regulating color temperature value according to a Bessel function relationship to obtain a target chromaticity coordinate;
and converting the target chromaticity coordinate into a target color temperature value, and automatically adjusting the display color temperature of the display panel according to the target color temperature value.
Optionally, the obtaining the regulatory coefficient includes:
acquiring a color temperature value of the turning gray scale;
and performing coefficient calculation according to the turning gray scale color temperature value to obtain a regulation and control coefficient.
Optionally, the acquiring the transition gray scale color temperature value includes:
acquiring a low gray scale regulation and control range;
determining a turning gray scale chromaticity coordinate according to the low gray scale regulation range;
and performing color temperature conversion calculation according to the turning gray scale chromaticity coordinate to obtain a turning gray scale color temperature value.
Optionally, the performing coefficient calculation according to the turning gray scale color temperature value to obtain a regulation and control coefficient includes:
acquiring the sequence number of the turning gray scale color temperature value in the low gray scale regulation range;
and performing coefficient calculation according to the serial number and the turning gray scale color temperature value to obtain a regulation and control coefficient.
Optionally, the performing fitting calculation on the regulation and control coefficient and the regulation color temperature value according to a bezier function relationship to obtain a target chromaticity coordinate includes:
obtaining an initial gray scale chromaticity coordinate;
fitting and calculating the regulation and control coefficient, the regulated color temperature value and the X coordinate of the initial gray scale chromaticity coordinate according to a Bessel function relationship to obtain the X coordinate of a target chromaticity coordinate;
and fitting and calculating the regulation and control coefficient, the regulated color temperature value and the Y coordinate of the initial gray scale chromaticity coordinate according to a Bessel function relationship to obtain the Y coordinate of the target chromaticity coordinate.
Optionally, the target chromaticity coordinate is obtained by fitting calculation according to formula 1, where formula 1 is as follows:
W xi ＝(1-t i ) 3 ·W x0 +3*(1-t i ) 2 *L c 1+3*t i 2 *(1-t i )*L c 2+t i 3 *L T
W yi ＝(1-t i ) 3 ·W y0 +3*(1-t i ) 2 *L c 1+3*t i 2 *(1-t i )*L c 2+t i 3 *L T
wherein L is c 1 is the first adjusted color temperature value, L c 2 is the second adjusted color temperature value, W xi Is the X-coordinate, t, of the target chromaticity coordinate i To adjust the coefficient, W x0 X-coordinate, L, of chromaticity coordinates of the starting gray level T Is a transition gray scale color temperature value, W yi Is the Y coordinate, W, of the target chromaticity coordinate y0 Is the Y coordinate of the starting gray scale chromaticity coordinate.
Optionally, after performing fitting calculation on the adjustment coefficient and the adjustment color temperature value according to a bezier function relationship to obtain a target chromaticity coordinate, the method further includes:
inputting the target chromaticity coordinate into a color analyzer for debugging to obtain color temperature regulation and control information;
and fine-tuning the target chromaticity coordinate according to the color temperature regulation and control information to obtain an updated target chromaticity coordinate.
In addition, in order to achieve the above object, the present application further provides a low gray scale color temperature control device, including:
the acquisition module is used for acquiring a regulation and control coefficient and regulating a color temperature value when the display panel displays an image;
the calculation module is used for performing fitting calculation on the regulation and control coefficient and the regulation color temperature value according to a Bessel function relationship to obtain a target chromaticity coordinate;
and the adjusting module is used for converting the target chromaticity coordinate into a target color temperature value and automatically adjusting the display color temperature of the display panel according to the target color temperature value.
In addition, in order to achieve the above object, the present application also provides a low gray scale color temperature control apparatus, including: a memory, a processor, and a low-grayscale color temperature regulation program stored on the memory and executable on the processor, the low-grayscale color temperature regulation program configured to implement the steps of the low-grayscale color temperature regulation method as described above.
In addition, to achieve the above object, the present application further provides a storage medium, where the storage medium stores a low gray scale color temperature regulation program, and the low gray scale color temperature regulation program when executed by a processor implements the steps of the low gray scale color temperature regulation method as described above.
This application is through when display panel carries out image display, acquire regulatory coefficient and regulation colour temperature value, right according to the Bessel functional relation regulatory coefficient with adjust the colour temperature value and carry out the fitting calculation, obtain target chromaticity coordinates, will target chromaticity coordinates converts target colour temperature value into, according to target colour temperature value automatically regulated display panel's demonstration colour temperature. According to the method and the device, the target chromaticity coordinate is obtained through fitting calculation of the regulation coefficient and the regulation color temperature value according to the smoothness and the controllability of the Bessel curve, the display color temperature of the display panel is automatically regulated according to the target chromaticity temperature value corresponding to the target chromaticity coordinate, the low gray scale is smoothly transited to the high gray scale, and the picture display effect is improved.
Drawings
FIG. 1 is a schematic structural diagram of a low-gray-scale color temperature regulation device of a hardware operating environment according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of a first embodiment of a low gray scale color temperature control method according to the present application;
FIG. 3 is a schematic flow chart illustrating a second embodiment of a low gray-scale color temperature control method according to the present application;
FIG. 4 is a schematic flow chart illustrating a third embodiment of a low gray-scale color temperature control method according to the present application;
FIG. 5 is a block diagram of a first embodiment of a low gray-scale color temperature control device according to the present application.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a low-gray-scale color temperature regulation and control device in a hardware operating environment according to an embodiment of the present application.
As shown in fig. 1, the low gray scale color temperature control apparatus may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001 described previously.
It will be appreciated by those skilled in the art that the configuration shown in fig. 1 does not constitute a limitation of the low gray scale color temperature control device, and may include more or less components than those shown, or some components may be combined, or a different arrangement of components may be provided.
As shown in fig. 1, a memory 1005, which is a storage medium, may include therein an operating system, a network communication module, a user interface module, and a low gray-scale color temperature regulation program.
In the low-gray-scale color temperature control device shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 of the low gray scale color temperature regulation and control device can be arranged in the low gray scale color temperature regulation and control device, the low gray scale color temperature regulation and control device calls a low gray scale color temperature regulation and control program stored in the memory 1005 through the processor 1001, and the low gray scale color temperature regulation and control method provided by the embodiment of the application is executed.
An embodiment of the present application provides a low gray scale color temperature regulation method, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the low gray scale color temperature regulation method according to the present application.
In this embodiment, the method for regulating and controlling the color temperature of the low gray scale includes the following steps:
step S10: and when the display panel displays images, acquiring a regulation and control coefficient and regulating a color temperature value.
It should be noted that the main execution body of the low-gray-scale color temperature regulation method may be a low-gray-scale color temperature regulation device, and the low-gray-scale color temperature regulation device may be disposed in the display panel. When the display panel displays images, the viewing experience of a user of the video terminal can be directly influenced by the display color temperature or the color level, and the low-gray-level color temperature regulating and controlling equipment takes the regulating and controlling coefficient and the regulating and controlling color temperature value as regulating and controlling parameters by acquiring the regulating and controlling coefficient and the regulating and controlling color temperature value, so that the display color temperature can be regulated.
It can be understood that the regulation coefficient can be obtained according to a low gray scale regulation range, and the low gray scale regulation range can be set according to the actual requirements of a visual terminal user. The adjustment color temperature value can be set according to the color temperature preference or the optical quality of the video terminal user, in the specific implementation, two adjustment color temperature values are usually selected to implement low-gray-scale color temperature adjustment based on the bezier function relationship, which is not limited in this embodiment.
Step S20: and fitting and calculating the regulating and controlling coefficient and the regulating color temperature value according to a Bessel function relation to obtain a target chromaticity coordinate.
It is easy to understand that the bezier curve is a smooth curve drawn according to the coordinates of any point at four positions. The method has the advantages that a smooth curve can be uniquely determined by using the Bessel curve for any two determined fixed points (the fixed points are determined by the low-gray-scale regulation and control range corresponding to the regulation and control coefficient) and setting the control points between the fixed points (the control points are determined by the regulation and color temperature values which can be converted into corresponding chromaticity coordinates), so that the low-gray-scale color temperature of the liquid crystal display panel can be debugged to different color temperatures or optical tastes according to the fitted smooth curve and the setting of the control points.
Step S30: and converting the target chromaticity coordinate into a target color temperature value, and automatically adjusting the display color temperature of the display panel according to the target color temperature value.
It should be understood that the conversion of the target chromaticity coordinate into the target color temperature value can be obtained by using a color coordinate and color temperature correspondence table or a color coordinate and color temperature conversion formula, and the display panel can automatically adjust the display color temperature according to the target color temperature value, so that ideal color temperature display is achieved, and the display effect of the picture is improved.
In this embodiment, when the display panel displays an image, a regulation and control coefficient and an adjusted color temperature value are obtained, the regulation and control coefficient and the adjusted color temperature value are subjected to fitting calculation according to a bezier function relationship to obtain a target chromaticity coordinate, the target chromaticity coordinate is converted into a target color temperature value, and the display color temperature of the display panel is automatically adjusted according to the target color temperature value. According to the method and the device, the target chromaticity coordinate is obtained through fitting calculation of the regulation coefficient and the regulation color temperature value according to the smoothness and the controllability of the Bessel curve, the display color temperature of the display panel is automatically regulated according to the target chromaticity temperature value corresponding to the target chromaticity coordinate, the low gray scale is smoothly transited to the high gray scale, and the picture display effect is improved.
Referring to fig. 3, fig. 3 is a schematic flow chart of a low-gray-scale color temperature control method according to a second embodiment of the present application.
Based on the first embodiment, the method for regulating and controlling the color temperature of the low gray scale of the present embodiment includes, in the step S10:
step S101: and acquiring a low gray scale regulation range.
It will be appreciated that the low gray level control range may be set according to the actual requirements of the end user. In a specific implementation, taking an 8-bit display device as an example, the low gray-scale control range may be set to L0 to L23, which is not limited in this embodiment.
Step S102: and determining the turning gray scale chromaticity coordinate according to the low gray scale regulation and control range.
It is easy to understand that the turning gray scale chromaticity coordinate may be determined according to the low gray scale control range, wherein the minimum gray scale corresponding to the low gray scale control range may be used as the initial gray scale, and the turning gray scale chromaticity coordinate is greater than the minimum gray scale corresponding to the low gray scale control range and less than or equal to the maximum gray scale corresponding to the low gray scale control range, which is not limited in this embodiment.
Step S103: and performing color temperature conversion calculation according to the turning gray scale chromaticity coordinates to obtain a turning gray scale color temperature value.
It should be understood that the conversion of the chromaticity coordinate of the transition gray scale into the color temperature value of the transition gray scale may be obtained by performing color temperature conversion calculation by using a color coordinate and color temperature conversion formula, or by looking up a color coordinate and color temperature correspondence table, which is not limited in this embodiment.
Step S104: and acquiring the serial number of the turning gray scale color temperature value in the low gray scale regulation range.
It is easy to understand that the gray levels in the low gray level control range can be arranged in the order from small to large, in a specific implementation, the low gray level control range can be set to L0 to L23, and correspondingly, the value range of the serial number can be 0 to 23, which is not limited in this embodiment.
Step S105: and performing coefficient calculation according to the serial number and the turning gray scale color temperature value to obtain a regulation and control coefficient.
It can be understood that, according to the coefficient calculation formula for low-gray-scale color temperature regulation, the regulation coefficient can be obtained by performing coefficient calculation on the serial number and the turning gray-scale color temperature value, and the coefficient calculation formula is as follows:
wherein, t i To regulate the coefficient, L T I is the serial number of the color temperature value of the transition gray scale.
In this embodiment, a low gray scale adjustment range is obtained, a turning gray scale chromaticity coordinate is determined according to the low gray scale adjustment range, color temperature conversion calculation is performed according to the turning gray scale chromaticity coordinate to obtain a turning gray scale color temperature value, a serial number of the turning gray scale color temperature value in the low gray scale adjustment range is obtained, and a coefficient calculation is performed according to the serial number and the turning gray scale color temperature value to obtain an adjustment coefficient. In this embodiment, the turning gray scale chromaticity coordinate is determined according to the low gray scale adjustment range, the turning gray scale color temperature value is obtained through calculation, the adjustment coefficient is obtained through calculation according to the serial number and the turning gray scale color temperature value, accurate control parameters are provided for low gray scale color temperature adjustment, and the adjustment process of low gray scale color temperature adjustment is further optimized.
Referring to fig. 4, fig. 4 is a schematic flowchart illustrating a third embodiment of a low-gray-scale color temperature control method according to the present application.
Based on the first and second embodiments, the method for regulating and controlling the color temperature of the low gray scale of the present embodiment includes, in the step S20:
step S201: and acquiring initial gray scale chromaticity coordinates.
It can be understood that the initial gray scale chromaticity coordinate may be obtained according to the low gray scale modulation range, the initial gray scale may be the minimum gray scale corresponding to the low gray scale modulation range, and the initial gray scale color temperature value may be converted into the initial gray scale chromaticity coordinate by using the color coordinate and color temperature correspondence table or the color coordinate and color temperature conversion formula, which is not limited in this embodiment.
Step S202: and fitting and calculating the regulation and control coefficient, the regulated color temperature value and the X coordinate of the initial gray scale chromaticity coordinate according to a Bessel function relationship to obtain the X coordinate of the target chromaticity coordinate.
It is easy to understand that the chromaticity coordinate includes an X coordinate component and a Y coordinate component, the starting gray scale chromaticity coordinate includes an X coordinate of the starting gray scale chromaticity coordinate, fitting calculation is performed according to the bezier function relationship, the adjustment coefficient, the adjustment color temperature value, and the X coordinate of the starting gray scale chromaticity coordinate are substituted into the X coordinate fitting calculation formula, and the X coordinate of the target chromaticity coordinate can be calculated, which is not limited in this embodiment.
Step S203: and fitting and calculating the regulation and control coefficient, the regulated color temperature value and the Y coordinate of the initial gray scale chromaticity coordinate according to a Bessel function relationship to obtain the Y coordinate of the target chromaticity coordinate.
It should be understood that the starting gray scale chromaticity coordinate includes a Y coordinate of the starting gray scale chromaticity coordinate, fitting calculation is performed according to a bezier function relationship, the adjustment and control coefficient, the adjusted color temperature value, and the Y coordinate of the starting gray scale chromaticity coordinate are substituted into a Y coordinate fitting calculation formula, and the Y coordinate of the target chromaticity coordinate can be calculated, which is not limited in this embodiment.
The target chromaticity coordinate is obtained by fitting calculation according to a formula 1, wherein the formula 1 comprises an X coordinate fitting calculation formula and a Y coordinate fitting calculation formula, and the formula 1 is as follows:
W xi ＝(1-t i ) 3 ·W x0 +3*(1-t i ) 2 *L c 1+3*t i 2 *(1-t i )*L c 2+t i 3 *L T
W yi ＝(1-t i ) 3 ·W y0 +3*(1-t i ) 2 *L c 1+3*t i 2 *(1-t i )*L c 2+t i 3 *L T
wherein L is c 1 is the first adjusted color temperature value, L c 2 is the second adjusted color temperature value, W xi Is the X-coordinate, t, of the target chromaticity coordinate i To adjust the coefficient, W x0 X-coordinate, L, of chromaticity coordinates of the starting gray level T Is a transition gray scale color temperature value, W yi Is the Y coordinate, W, of the target chromaticity coordinate y0 Is the Y coordinate of the starting gray scale chromaticity coordinate.
Step S204: inputting the target chromaticity coordinates into a color analyzer for debugging to obtain color temperature regulation and control information; and fine-tuning the target chromaticity coordinate according to the color temperature regulation and control information to obtain an updated target chromaticity coordinate.
It can be understood that after the target chromaticity coordinate is obtained through fitting calculation based on the Bessel function relationship, the target chromaticity coordinate can be input into the color analyzer for debugging, and whether the target chromaticity coordinate meets the ideal color temperature or the optical taste of the video terminal user is judged according to the debugging of the color analyzer, the target chromaticity coordinate is debugged in the color analyzer, and then the debugging result, namely, color temperature regulation and control information can be output, and the color temperature regulation and control information can include color parameter information and picture display information of the target chromaticity coordinate. If the target chromaticity coordinate is deviated from the ideal color temperature or optical quality of the video terminal user, the low-gray-scale color temperature regulation and control device can perform fine adjustment on the target chromaticity coordinate according to the fed-back color temperature regulation and control information to obtain an updated target chromaticity coordinate, and automatically regulate the display color temperature of the display panel according to the updated target chromaticity coordinate, so that the display picture of the display panel can achieve the best display effect.
In the embodiment, an initial gray scale chromaticity coordinate is obtained, fitting calculation is performed on the regulation and control coefficient, the adjusted color temperature value and an X coordinate of the initial gray scale chromaticity coordinate according to a bezier function relationship to obtain an X coordinate of a target chromaticity coordinate, fitting calculation is performed on the regulation and control coefficient, the adjusted color temperature value and a Y coordinate of the initial gray scale chromaticity coordinate according to the bezier function relationship to obtain a Y coordinate of the target chromaticity coordinate, and after the target chromaticity coordinate is obtained, the target chromaticity coordinate is input to a color analyzer for debugging to obtain color temperature regulation and control information; and fine-tuning the target chromaticity coordinate according to the color temperature regulation and control information to obtain an updated target chromaticity coordinate, and automatically regulating the display color temperature of the display panel according to the updated target chromaticity coordinate. According to the method, the target chromaticity coordinate is obtained through calculation of the Bessel function relation according to the initial gray scale chromaticity coordinate, the regulation and control coefficient and the regulated color temperature value, debugging of different color temperatures is achieved, the low gray scale color scale is enabled to change stably, coordinate fine adjustment is conducted through the color analyzer, accuracy and controllability of low gray scale color temperature regulation and control are improved, and the picture display effect is further improved.
In addition, an embodiment of the present application further provides a storage medium, where a low gray scale color temperature regulation program is stored on the storage medium, and when executed by a processor, the low gray scale color temperature regulation program implements the steps of the low gray scale color temperature regulation method as described above.
The storage medium described in this application adopts all technical solutions of all the above embodiments, so that at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and details are not repeated here.
Referring to fig. 5, fig. 5 is a block diagram of a first embodiment of a low gray level color temperature control device according to the present application.
As shown in fig. 5, the low gray scale color temperature control apparatus provided in the embodiment of the present application includes:
the obtaining module 10 is configured to obtain a control coefficient and adjust a color temperature value when the display panel displays an image.
It should be noted that the main implementation body of the low-gray-scale color temperature regulation method may be a low-gray-scale color temperature regulation device, and the low-gray-scale color temperature regulation device may be disposed in the display panel. When the display panel displays images, the viewing experience of a video terminal user can be directly influenced by the displayed color temperature or the color gradation, and the low-gray-scale color temperature regulating and controlling equipment can adjust the displayed color temperature by acquiring the regulating and controlling coefficient and the adjusted color temperature value as regulating and controlling parameters.
It can be understood that the regulation coefficient can be obtained according to a low gray scale regulation range, and the low gray scale regulation range can be set according to the actual requirements of a visual terminal user. The adjustment color temperature values can be set according to the color temperature preference or optical taste of the visual terminal user, in specific implementation, two adjustment color temperature values are usually selected to implement low-gray-scale color temperature adjustment based on the bezier function relationship, and this embodiment is not limited.
And the calculating module 20 is configured to perform fitting calculation on the regulation and control coefficient and the regulated color temperature value according to a bezier function relationship, so as to obtain a target chromaticity coordinate.
It is easy to understand that the bezier curve is a smooth curve drawn according to the coordinates of any point at four positions. The method has the advantages that a smooth curve can be uniquely determined by using the Bessel curve for any two determined fixed points (the fixed points are determined by the low-gray-scale regulation and control range corresponding to the regulation and control coefficient) and setting the control points between the fixed points (the control points are determined by the regulation and color temperature values which can be converted into corresponding chromaticity coordinates), so that the low-gray-scale color temperature of the liquid crystal display panel can be debugged to different color temperatures or optical tastes according to the fitted smooth curve and the setting of the control points.
And the adjusting module 30 is configured to convert the target chromaticity coordinate into a target color temperature value, and automatically adjust the display color temperature of the display panel according to the target color temperature value.
It should be understood that the conversion of the target chromaticity coordinate into the target color temperature value can be obtained by using a color coordinate and color temperature correspondence table or a color coordinate and color temperature conversion formula, and the display panel can automatically adjust the display color temperature according to the target color temperature value, so that ideal color temperature display is achieved, and the display effect of the picture is improved.
In this embodiment, when the display panel displays an image, a regulation and control coefficient and an adjusted color temperature value are obtained, fitting calculation is performed on the regulation and control coefficient and the adjusted color temperature value according to a bezier function relationship, a target chromaticity coordinate is obtained, the target chromaticity coordinate is converted into a target color temperature value, and the display color temperature of the display panel is automatically adjusted according to the target color temperature value. According to the method and the device, the target chromaticity coordinate is obtained through fitting calculation of the regulation coefficient and the regulation color temperature value according to the smoothness and the controllability of the Bessel curve, the display color temperature of the display panel is automatically regulated according to the target chromaticity temperature value corresponding to the target chromaticity coordinate, the low gray scale is smoothly transited to the high gray scale, and the picture display effect is improved.
In an embodiment, the obtaining module 10 is further configured to obtain a low gray scale control range, and determine a turning gray scale chromaticity coordinate according to the low gray scale control range.
In an embodiment, the calculating module 20 is further configured to perform color temperature conversion calculation according to the transition gray scale chromaticity coordinate to obtain a transition gray scale color temperature value.
In an embodiment, the obtaining module 10 is further configured to obtain a serial number of the transition gray-scale color temperature value in the low gray-scale control range.
In an embodiment, the calculating module 20 is further configured to perform coefficient calculation according to the serial number and the turning gray scale color temperature value to obtain a regulation coefficient.
In an embodiment, the obtaining module 10 is further configured to obtain a starting gray scale chromaticity coordinate.
In an embodiment, the calculating module 20 is further configured to perform fitting calculation on the adjustment and control coefficient, the adjusted color temperature value, and the X coordinate of the starting gray scale chromaticity coordinate according to a bezier function relationship, so as to obtain an X coordinate of a target chromaticity coordinate; and fitting and calculating the regulation and control coefficient, the regulated color temperature value and the Y coordinate of the initial gray scale chromaticity coordinate according to a Bessel function relationship to obtain the Y coordinate of the target chromaticity coordinate.
In an embodiment, the adjusting module 30 is further configured to input the target chromaticity coordinate into a color analyzer for debugging, so as to obtain color temperature regulation information; and fine-tuning the target chromaticity coordinate according to the color temperature regulation and control information to obtain an updated target chromaticity coordinate.
The low gray-scale color temperature control device of the present application adopts all the technical solutions of all the above embodiments, so that at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and are not repeated herein.
It should be understood that the above is only an example, and the technical solution of the present application is not limited in any way, and in a specific application, a person skilled in the art may set the technical solution as needed, and the present application is not limited in this respect.
It should be noted that the above-described work flows are only illustrative and do not limit the scope of the present application, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the present embodiment according to practical needs, and the present invention is not limited herein.
In addition, the technical details that are not described in detail in this embodiment can be referred to the low-gray-scale color temperature regulation method provided in any embodiment of the present application, and are not described herein again.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solution of the present application or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g., Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method described in the embodiments of the present application.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are included in the scope of the present application.
Claims (8)
1. A low gray scale color temperature regulation method is characterized by comprising the following steps:
when the display panel displays images, acquiring a regulation and control coefficient and a regulation color temperature value;
fitting and calculating the regulating and controlling coefficient and the regulating color temperature value according to a Bessel function relationship to obtain a target chromaticity coordinate;
converting the target chromaticity coordinate into a target color temperature value, and automatically adjusting the display color temperature of the display panel according to the target color temperature value;
the fitting calculation of the regulation and control coefficient and the regulation color temperature value according to the Bessel function relationship to obtain a target chromaticity coordinate comprises the following steps:
obtaining an initial gray scale chromaticity coordinate;
fitting and calculating the regulation and control coefficient, the regulated color temperature value and the X coordinate of the initial gray scale chromaticity coordinate according to a Bessel function relationship to obtain the X coordinate of a target chromaticity coordinate;
fitting and calculating the regulating and controlling coefficient, the regulating color temperature value and the Y coordinate of the initial gray scale chromaticity coordinate according to a Bessel function relation to obtain the Y coordinate of a target chromaticity coordinate;
the target chromaticity coordinate is obtained by fitting calculation according to formula 1, wherein formula 1 is as follows:
W xi ＝(1-t i ) 3 ·W x0 +3*(1-t i ) 2 *L c 1+3*t i 2 *(1-t i )*L c 2+t i 3 *L T
W yi ＝(1-t i ) 3 ·W y0 +3*(1-t i ) 2 *L c 1+3*t i 2 *(1-t i )*L c 2+t i 3 *L T
wherein L is c 1 is the first adjusted color temperature value, L c 2 is the second adjusted color temperature value, W xi Is the X-coordinate, t, of the target chromaticity coordinate i To adjust the coefficient, W x0 X-coordinate, L, of the starting gray scale chromaticity coordinate T Is a transition gray scale color temperature value, W yi Is the Y coordinate, W, of the target chromaticity coordinate y0 Is the Y coordinate of the starting gray scale chromaticity coordinate.
2. The method of claim 1, wherein the obtaining the scaling factor comprises:
acquiring a color temperature value of the turning gray scale;
and performing coefficient calculation according to the turning gray scale color temperature value to obtain a regulation and control coefficient.
3. The method of claim 2, wherein obtaining the breakover grayscale color temperature value comprises:
acquiring a low gray scale regulation range;
determining a turning gray scale chromaticity coordinate according to the low gray scale regulation range;
and performing color temperature conversion calculation according to the turning gray scale chromaticity coordinate to obtain a turning gray scale color temperature value.
4. The method of claim 3, wherein the performing a coefficient calculation according to the inflection gray level color temperature value to obtain a control coefficient comprises:
acquiring the sequence number of the turning gray scale color temperature value in the low gray scale regulation range;
and performing coefficient calculation according to the serial number and the turning gray scale color temperature value to obtain a regulation and control coefficient.
5. The method as claimed in any one of claims 1 to 4, wherein the fitting calculation of the control coefficient and the adjusted color temperature value according to Bessel function relationship to obtain a target chromaticity coordinate further comprises:
inputting the target chromaticity coordinates into a color analyzer for debugging to obtain color temperature regulation and control information;
and fine-tuning the target chromaticity coordinate according to the color temperature regulation and control information to obtain an updated target chromaticity coordinate.
6. A low gray scale color temperature control apparatus, comprising:
the acquisition module is used for acquiring a regulation and control coefficient and regulating a color temperature value when the display panel displays an image;
the calculation module is used for performing fitting calculation on the regulation and control coefficient and the regulation color temperature value according to a Bessel function relationship to obtain a target chromaticity coordinate;
the adjusting module is used for converting the target chromaticity coordinates into a target color temperature value and automatically adjusting the display color temperature of the display panel according to the target color temperature value;
the acquisition module is also used for acquiring the chromaticity coordinate of the initial gray scale;
the calculation module is further used for performing fitting calculation on the regulation and control coefficient, the regulated color temperature value and the X coordinate of the initial gray scale chromaticity coordinate according to a Bessel function relationship to obtain the X coordinate of a target chromaticity coordinate;
fitting and calculating the regulating and controlling coefficient, the regulating color temperature value and the Y coordinate of the initial gray scale chromaticity coordinate according to a Bessel function relationship to obtain the Y coordinate of a target chromaticity coordinate;
the target chromaticity coordinate is obtained by fitting calculation according to formula 1, wherein formula 1 is as follows:
W xi ＝(1-t i ) 3 ·W x0 +3*(1-t i ) 2 *L c 1+3*t i 2 *(1-t i )*L c 2+t i 3 *L T
W yi ＝(1-t i ) 3 ·W y0 +3*(1-t i ) 2 *L c 1+3*t i 2 *(1-t i )*L c 2+t i 3 *L T
wherein L is c 1 is the first adjusted color temperature value, L c 2 is the second adjusted color temperature value, W xi Is the X-coordinate, t, of the target chromaticity coordinate i To adjust the coefficient, W x0 Is the initial gray scale chromaticityX coordinate of the coordinates, L T Is a transition gray scale color temperature value, W yi Is the Y coordinate, W, of the target chromaticity coordinate y0 Is the Y coordinate of the starting gray scale chromaticity coordinate.
7. A low gray-scale color temperature regulation apparatus, comprising: a memory, a processor, and a low gray scale color temperature regulation program stored on the memory and executable on the processor, the low gray scale color temperature regulation program configured to implement the low gray scale color temperature regulation method of any one of claims 1 to 5.
8. A storage medium having a low gray scale color temperature control program stored thereon, wherein the low gray scale color temperature control program when executed by a processor implements the low gray scale color temperature control method according to any one of claims 1 to 5.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101874330A (en) * | 2007-09-27 | 2010-10-27 | 奥斯坦多科技公司 | Quantum photonic imager and method of manufacturing the same |
| CN102419947A (en) * | 2011-11-21 | 2012-04-18 | 四川长虹电器股份有限公司 | Color temperature debugging method of liquid crystal screen |
| TW201230873A (en) * | 2011-01-10 | 2012-07-16 | Cree Inc | Systems and methods for controlling solid state lighting devices and lighting apparatus incorporating such systems and/or methods |
| CN103270550A (en) * | 2010-11-01 | 2013-08-28 | 克里公司 | Systems and methods for controlling solid state lighting devices and lighting apparatus incorporating such systems and/or methods |
| CN105336307A (en) * | 2015-11-18 | 2016-02-17 | 深圳创维－Rgb电子有限公司 | Method and system for correcting gamma curve of display based on color temperature |
| CN108322739A (en) * | 2018-02-06 | 2018-07-24 | 四川长虹电器股份有限公司 | A kind of LCD TV gamma adjustment method of reduce brightness loss |
| CN111063292A (en) * | 2019-12-30 | 2020-04-24 | 深圳Tcl数字技术有限公司 | Color gamut mapping method, color gamut mapping component, display device and storage medium |
| CN112992059A (en) * | 2021-02-02 | 2021-06-18 | 深圳精智达技术股份有限公司 | Method and related device for adjusting Gamma of OLED display screen |
| CN113112952A (en) * | 2019-12-24 | 2021-07-13 | 西安诺瓦星云科技股份有限公司 | Display screen color temperature adjusting method, device and system and computer readable storage medium |
-
2021
- 2021-07-23 CN CN202110834400.2A patent/CN113674711B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101874330A (en) * | 2007-09-27 | 2010-10-27 | 奥斯坦多科技公司 | Quantum photonic imager and method of manufacturing the same |
| CN103270550A (en) * | 2010-11-01 | 2013-08-28 | 克里公司 | Systems and methods for controlling solid state lighting devices and lighting apparatus incorporating such systems and/or methods |
| TW201230873A (en) * | 2011-01-10 | 2012-07-16 | Cree Inc | Systems and methods for controlling solid state lighting devices and lighting apparatus incorporating such systems and/or methods |
| CN102419947A (en) * | 2011-11-21 | 2012-04-18 | 四川长虹电器股份有限公司 | Color temperature debugging method of liquid crystal screen |
| CN105336307A (en) * | 2015-11-18 | 2016-02-17 | 深圳创维－Rgb电子有限公司 | Method and system for correcting gamma curve of display based on color temperature |
| CN108322739A (en) * | 2018-02-06 | 2018-07-24 | 四川长虹电器股份有限公司 | A kind of LCD TV gamma adjustment method of reduce brightness loss |
| CN113112952A (en) * | 2019-12-24 | 2021-07-13 | 西安诺瓦星云科技股份有限公司 | Display screen color temperature adjusting method, device and system and computer readable storage medium |
| CN111063292A (en) * | 2019-12-30 | 2020-04-24 | 深圳Tcl数字技术有限公司 | Color gamut mapping method, color gamut mapping component, display device and storage medium |
| CN112992059A (en) * | 2021-02-02 | 2021-06-18 | 深圳精智达技术股份有限公司 | Method and related device for adjusting Gamma of OLED display screen |
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