CN113990246B

CN113990246B - Display unit correction method, device and system

Info

Publication number: CN113990246B
Application number: CN202111414958.1A
Authority: CN
Inventors: 樊兴旺; 白绳武
Original assignee: Xian Novastar Electronic Technology Co Ltd
Current assignee: Xian Novastar Electronic Technology Co Ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2023-07-21
Anticipated expiration: 2041-11-25
Also published as: CN113990246A

Abstract

The invention discloses a display unit correction method, device, equipment and system. Wherein the method comprises the following steps: acquiring initial data of a first display unit, wherein the initial data comprises initial brightness data, initial chromaticity data or initial brightness chromaticity data; determining first target data matched with the first display unit according to the initial data and a plurality of pre-stored target data, wherein the target data comprises target brightness data, target chromaticity data or target brightness data; and determining a target correction coefficient of the first display unit according to the initial data and the first target data matched with the first display unit. The invention solves the technical problem of larger loss of brightness and/or color gamut caused by adopting a unified target value for correction when the display unit is corrected in the related art.

Description

Display unit correction method, device and system

Technical Field

The present invention relates to the field of display, and in particular, to a method, an apparatus, and a system for correcting a display unit.

Background

Since the display units, such as the light emitting characteristics of the LED (light emitting diode) lamp panel and the influence of the display screen process, the Mura shapes among the display units are not consistent, and the direct splicing Lighting can seriously influence the viewing experience, in order to solve the above problems, the conventional DeMura method adopted in the related art is to perform DeMura on all LED units according to one target value, but the following problems exist in the method: there is a significant loss of brightness and/or color gamut for some display elements.

In view of the above problems, no effective solution has been proposed at present.

Disclosure of Invention

The embodiment of the invention provides a method, a device and a system for correcting a display unit, which are used for at least solving the technical problem that the brightness and/or color gamut are lost greatly due to the fact that a unified target value is adopted for correction when the correction of an LED display unit is carried out in the related art.

According to an aspect of an embodiment of the present invention, there is provided a correction method of a display unit, including: acquiring initial data of a first display unit, wherein the initial data comprises initial brightness data, initial chromaticity data or initial brightness chromaticity data; determining first target data matched with the first display unit according to the initial data and a plurality of pre-stored target data, wherein the target data comprises target brightness data, target chromaticity data or target brightness data; and determining a target correction coefficient of the first display unit according to the initial data and first target data matched with the first display unit.

Through the processing, the purpose of determining the target correction coefficient of the first display unit is achieved according to the initial data and the first target data matched with the first display unit, and the first target data is determined through the initial data of the first display unit and the prestored multiple target data, so that the target correction coefficient can be obtained in a targeted manner, the target correction coefficient is more accurate, and the technical problem that when the correction of the LED display unit is carried out in the related art, the uniform target value is adopted for correction, and the loss of brightness and/or color gamut is large is solved.

Optionally, the determining, according to the initial data and the pre-stored multiple target data, first target data matched with the first display unit includes: and determining target data meeting target data matching conditions in a plurality of prestored target data as first target data matched with the first display unit according to the initial data.

The first target data matched with the first display unit is determined according to the target data matching condition, so that the determined first target data is matched with the first display unit in condition, namely, is determined according to the corresponding matching standard, and the validity of the matched first target data can be ensured to a certain extent.

Optionally, the target data matching condition includes at least one of: the first display unit can be achieved after correction; the deviation between the first display unit and the initial data of the first display unit is not greater than a preset threshold value or not exceeding a preset range; closest to the initial data of the first display unit.

By the above example of the target data matching condition, when the first target data is matched with the first display unit, a plurality of factors are considered, so that the effect achieved by the plurality of factors can be achieved. And the efficiency and the accuracy of matching the first target data are effectively improved. For example, the target data matching condition is that the first display unit can be obtained through correction, that is, the correction capability of the first display unit is considered, so that the situation that the obtained first target data cannot be obtained through correction of the first display unit is avoided. And when the target data matching condition is that the deviation between the target data matching condition and the initial data of the first display unit is not larger than a preset threshold value or not more than a preset range, namely, the deviation between the matched first target data and the initial data is considered to be limited, so that the situation that the first display unit is not excessively corrected, and the loss is overlarge is achieved. And when the target data matching condition is closest to the initial data of the first display unit, namely, the matching degree of the first target data and the initial data is considered, namely, the correction of the first display unit is realized as small as possible.

Optionally, the determining, according to the initial data, target data meeting a target data matching condition in a plurality of pre-stored target data, as first target data matched with the first display unit, includes: in the case that the target data satisfying the target data matching condition is one, determining the target data satisfying the target data matching condition as first target data matching the first display unit; or if the target data satisfying the target data matching condition is a plurality of target data, determining first target data matched with the first display unit from the plurality of target data satisfying the target data matching condition according to a selected rule.

And determining the final first target data according to the quantity of the first target data matched according to the target data matching condition. By adopting the processing, the first target data which are finally matched are more accurate by differentiating the first target data according to specific conditions, and further, when the first display unit is corrected, the loss of brightness and chromaticity of the first display unit is also minimum.

Optionally, the selected rule includes at least one of: closest to the initial data, stock demand selection, user instruction selection, and random selection.

Through the selected rules of the diversity, the first target data can be flexibly determined according to the requirements, so that the obtained first target data is targeted, the personalized requirements of users are realized, and the user experience is effectively improved.

Optionally, the determining, according to the initial data, target data meeting a target data matching condition in a plurality of pre-stored target data, as first target data matched with the first display unit, includes: sequencing a plurality of prestored target data to obtain a sequencing result; sequentially comparing the target data in the sequencing result with the initial data to determine first target data meeting the target data matching condition as first target data matched with the first display unit; or the prestored plurality of target data are a plurality of target data arranged according to a preset rule, the prestored plurality of target data are sequentially compared with the initial data, and first target data meeting the target data matching condition are determined to be used as first target data matched with the first display unit.

By adopting the mode of sorting the prestored plurality of target data, the plurality of target data are sorted, so that the matching degree of the matching condition with the target data in the plurality of target data can be rapidly determined, and further the first target data matched with the first display unit can be efficiently obtained.

Optionally, the method further comprises: under the condition that target data meeting target data matching conditions do not exist in a plurality of pre-stored target data, the first target data are newly built according to the initial data, and the first target data are added into a target database pre-storing the plurality of target data.

Through the processing, when all the prestored plurality of target data do not meet the target data matching condition, a new mode is adopted to obtain the first target data, namely a new choice is provided for obtaining the first target data. By adopting a mode of newly creating first target data matched with the first display unit, the matched first target data is determined for the first display unit, and a plurality of prestored target data can be perfected, so that the effect of continuously enriching the prestored target data is achieved.

Optionally, the updating the first target data according to the initial data includes: proportional attenuation is carried out on the initial data to obtain attenuated data; and taking the attenuated data as the first target data.

When the first target data is newly established, the first target data is obtained by adopting a mode of proportional attenuation of the initial data, so that the compatibility of the first target data in the subsequent use process can be improved.

Optionally, the plurality of target data are matched with the display units of a plurality of optical specifications in a one-to-one correspondence manner; or the plurality of target data are obtained based on sample display units of various optical specifications; or the difference between the optical specifications corresponding to different target data is above a preset threshold value; wherein the optical specification comprises: at least one of a luminance specification, a chromaticity specification, and a luminance-chromaticity specification.

In the application, the display unit with various optical specifications can be corrected, and the correction efficiency can be improved.

Optionally, if the optical specification includes a low luminance specification, the difference between luminance specifications corresponding to different target data is more than 10%, and if the luminance specification includes a chrominance specification, the difference between chrominance corresponding to different target data is more than 3 nm.

Optionally, the method further comprises: acquiring initial data of a second display unit; determining second target data matched with the second display unit according to the initial data of the second display unit and a plurality of pre-stored target data, wherein the optical specifications of the first display unit and the second display unit are different, and the optical specifications comprise: at least one of a light emitting chip specification, a luminance specification, a chromaticity specification, and a luminance-chromaticity specification, the first target data and the second target data being different; and determining a target correction coefficient of the second display unit according to the initial data of the second display unit and second target data matched with the second display unit.

Because the specifications of the adopted light emitting chips of the display units are different and may correspond to different brightness levels, the method of the embodiment of the application is adopted to respectively determine the target data corresponding to the display units according to the brightness levels corresponding to the display units and correct according to the respectively determined target data, so that the obtained target data are corresponding to the display units, and the problem of resource waste caused by correcting by adopting uniform target data in the related technology is effectively avoided.

Optionally, at least one of the following is included: in the case where the optical specification includes a light emitting chip specification, the specification of the light emitting chip on the first display unit and the specification of the light emitting chip on the second display unit are different; in the case where the optical specification includes a chromaticity specification, a difference between a dominant wavelength of the first display unit and a dominant wavelength of the second display unit is above a preset difference threshold for the same color; in the case where the optical specification includes a luminance specification, a ratio between the luminance of the first display unit and the luminance of the second display unit is not less than a preset ratio threshold.

In the related art, for a plurality of display units (i.e., a plurality of light panels), since there is only one target value, all the light panels that cannot reach the target value are marked as faulty light panels, and in order to reduce the number of faulty light panels, it is required for the display unit manufacturer to manufacture the display units, all the display units are of uniform specification, which increases the complexity and cost of the display unit manufacturer. By using the method in the application, as a plurality of target data are provided, different display units can be matched with different target data, and the display units manufactured by the display unit manufacturer are allowed to have various specifications, so that the working complexity and cost of the display unit manufacturer can be reduced, and meanwhile, the flexibility of the display unit manufacturer in the process of manufacturing the display unit can be improved.

Optionally, the first display unit includes two or more light emitting chip specifications, where a difference between dominant wavelengths of light emitting chips of different specifications for the same color is above a preset difference threshold, and/or a ratio between a luminance of a light emitting chip of a first specification and a luminance of a light emitting chip of a second specification in different specifications is not less than a preset ratio threshold.

Optionally, the first display unit includes two or more light emitting chip specifications, different light emitting chip specifications correspond to different optical specifications, and the optical specifications include at least one of a luminance specification, a chromaticity specification, and a luminance-chromaticity specification.

In the related art, only one light emitting chip specification exists in one display unit, and the display unit is supported to contain multiple light emitting chip specifications, so that the same display unit manufactured by a display unit manufacturer is allowed to have multiple light emitting chips with multiple specifications, and the working complexity and cost of the display unit manufacturer can be reduced.

Optionally, in the case that the optical specification includes a luminance specification, a ratio between a maximum luminance and a minimum luminance between the same optical specification is not greater than a preset ratio threshold or a difference between the same optical specification is not greater than a preset luminance difference threshold; in the case where the optical specifications include chromaticity specifications, a difference between dominant wavelengths for the same color between the same optical specifications is not greater than a preset chromaticity difference threshold or a chromaticity difference for the same color is not greater than a preset chromaticity difference threshold.

Optionally, the preset difference threshold is 5nm, and the preset proportion threshold is 1.3.

It should be noted that the above-mentioned preset difference is only an example, and is not limited to the above example.

Optionally, the initial data of the first display unit is the minimum initial data of the lamp points in the preset range in the first display unit.

When the initial data can be the minimum initial data of the lamp points in the preset range in the first display unit, the adjusted data of the lamp points can be kept to be more consistent, the performance of the LED display unit is greatly stabilized, the display screen after Demura is more uniform in display, and the display effect is better.

Optionally, the light points within the preset range include one of the following: and all the light points in the first display unit are not less than the preset number proportion of the light points in the first display unit.

By flexible selection of the above-mentioned preset range, flexible implementation can be achieved: under the condition that the overall look and feel of the first display unit is not affected, the calculated amount of the system is reduced, and the processing process is quickened.

According to another aspect of an embodiment of the present invention, there is provided a correction device of a display unit, including: the device comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring initial data of a first display unit, and the initial data comprise initial brightness data, initial chromaticity data or initial brightness data; a first determining module, configured to determine first target data matched with the first display unit according to the initial data and a plurality of pre-stored target data, where the target data includes target luminance data, target chromaticity data, or target luminance chromaticity data; and the second determining module is used for determining a target correction coefficient of the first display unit according to the initial data and the first target data matched with the first display unit.

According to still another aspect of the embodiment of the present invention, there is provided a correction apparatus of a display unit including: a processor; a memory for storing the processor-executable instructions; wherein the processor is configured to execute the instructions to implement the method of correcting a display unit of any one of the claims.

According to still another aspect of the embodiments of the present invention, there is provided a computer-readable storage medium, which when executed by a processor of an electronic device, causes the electronic device to perform the method of correcting a display unit of any one of the above.

According to still another aspect of an embodiment of the present invention, there is provided an automatic display unit correction system including: the system comprises an acquisition station, wherein the acquisition station is provided with acquisition equipment; the conveying equipment is used for conveying the display unit and conveying the display unit to the acquisition station for optical acquisition; the correction analysis device is connected with the acquisition device and is used for acquiring initial data of a plurality of display units acquired by the acquisition device at the same time or in a time-sharing manner, and determining target data corresponding to each display unit in the plurality of display units according to the initial data of the plurality of display units and a plurality of pre-stored target data, wherein a first part of display units in the plurality of display units correspond to first target data, a second part of display units in the plurality of display units correspond to second target data, the first target data and the second target data are different, and the first target data and the second target data belong to the pre-stored plurality of target data; the correction analysis device is further configured to obtain a correction coefficient of each display unit in the first portion display unit according to the initial data of each display unit in the first portion display unit and the first target data; and obtaining a correction coefficient of each display unit in the second part display unit according to the initial data of each display unit in the second part display unit and the second target data.

In the embodiment of the invention, the aim of determining the target correction coefficient of the first display unit is fulfilled according to the initial data and the first target data matched with the first display unit, and the target correction coefficient can be obtained pertinently because the first target data is determined by the initial data of the first display unit and the prestored plurality of target data, so that the target correction coefficient is more accurate, and the technical problem that the brightness and/or color gamut loss is larger due to the fact that the unified target value is adopted for correction when the display unit is corrected in the related technology is effectively solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

fig. 1 is a flowchart of a correction method of a display unit according to an embodiment of the present invention;

FIG. 2 is a flow chart of a Demura target calculation and archiving applied by a correction method of a display unit according to an alternative embodiment of the invention;

FIG. 3 is a flow chart of a reference Demura target value and archiving applied by a correction method of a display unit according to an alternative embodiment of the invention;

Fig. 4 is a block diagram of a configuration of a correction device of a display unit according to an embodiment of the present invention;

fig. 5 is a block diagram of a configuration of a correction system of a display unit according to an embodiment of the present invention;

fig. 6 is a block diagram illustrating a structure of a terminal according to an exemplary embodiment.

Detailed Description

According to an embodiment of the present invention, there is provided an embodiment of a correction method of a display unit, it being noted that the steps shown in the flowcharts of the drawings may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that herein.

It should be understood that the method of the present application may be applied not only to the correction of LED display units, but also to the correction of other types of display units such as LCD, OLED, miniLED, microLED, in which case LEDs are merely examples.

Interpretation of the terms

Mura: in the display field, the phenomenon of various marks caused by uneven brightness and color of the display is indicated.

Demura: refers to a process of removing luminance unevenness.

The display unit, also called a unit board, a display module, or an LED display module comprises a plurality of LED lamp point chips. Alternatively, the display unit may be a lamp panel, may be a unit that can be used for display, such as a box. Within the same display unit, the specifications of the LED light point chips may be different, for example, the dominant wavelength of the color of the LED light point chips of different specifications may be different for the same color, and the ratio of the highest and lowest brightness of the LED light point chips of different specifications may be different. Moreover, for different display units, the brightness difference of the LED pixels before correction is also large, and the LED lamp chips with different specifications may be corresponding.

Fig. 1 is a flowchart of a method for correcting a display unit according to an embodiment of the present invention, alternatively, the method may be executed by a computer, may be executed by a correction device, and may be executed by another device capable of performing data processing, which is not limited herein. As shown in fig. 1, the method comprises the steps of:

step S102, initial data of a first display unit is obtained, wherein the initial data comprises initial brightness data, initial chromaticity data or initial brightness chromaticity data;

step S104, determining first target data matched with the first display unit according to the initial data and a plurality of pre-stored target data, wherein the target data comprises target brightness data, target chromaticity data or target brightness data;

step S106, determining a target correction coefficient of the first display unit according to the initial data and the first target data matched with the first display unit.

Through the steps, the purpose of determining the target correction coefficient of the first display unit is achieved according to the initial data and the first target data matched with the first display unit, and the first target data is determined through the initial data of the first display unit and the prestored plurality of target data, so that the target correction coefficient can be obtained in a targeted manner, the target correction coefficient is more accurate, and the technical problem that when the correction of the display unit is carried out in the related art, the unified target value is adopted for correction, and the loss of brightness and/or color gamut is larger is solved.

As an alternative embodiment, initial data of the first display unit is acquired, the initial data comprising initial luminance data, initial chrominance data or initial luminance chrominance data. The first display unit may be any one of a plurality of display units used for being spliced into the LED display screen. And any display unit spliced into the LED display screen can be processed. The initial data may include: the initial luminance data, the initial chromaticity data or the initial luminance data, or other data which can influence the Mura phenomenon, the initial luminance data refers to the luminance value data of the lamp points included in the first display unit, the initial chromaticity data refers to the color gamut range data of the lamp points included in the first display unit, and the initial luminance data refers to the luminance value data and the color gamut range data of the lamp points included in the first display unit, and the data are adjusted in a targeted manner to play a role of Demura.

It should be noted that, the initial data may be the minimum initial data of the light points in the predetermined range in the first display unit, when the initial data refers to the minimum initial data, the adjusted data of each light point can be kept to be more consistent, the performance of the LED display unit is greatly stabilized, the display screen after Demura is more uniform, and the display effect is better. The predetermined range may be all the light points in the first display unit, or may be not less than a predetermined number of the light points in the first display unit, for example, may be 95% of the light points on the first display unit, so that the calculation amount of the system is reduced and the processing process is accelerated without affecting the overall look and feel of the first display unit.

As an optional embodiment, before the initial data of the first display unit in the LED display screen is obtained, abnormal data of the first display unit in the LED display screen may be selected, and the abnormal light point may be eliminated, for example, according to a difference value between data of a certain light point in the first display unit in the LED display screen and average data of surrounding light points, when the difference value is greater than a certain threshold value, the light point is judged to be a bad point, and the light point is eliminated, so that the initial data of the first display unit in the LED display screen is obtained from normal light point data of the first display unit in the LED display screen, and a problem that initial data is obtained inappropriately due to a phenomenon that the bad point exists is effectively avoided.

As an alternative embodiment, the first target data matched with the first display unit is determined according to the initial data and a plurality of pre-stored target data, wherein the target data comprises target brightness data, target chromaticity data or target brightness data. The pre-stored plurality of target data may be selected in a variety of ways, for example, the pre-stored plurality of target data may be stored in a target database from which the pre-stored plurality of target data is selected. The method can select proper mode of selecting target data according to actual application scene, and select the data as target data to adjust, thereby accurately performing Demura processing and reducing loss. Alternatively, the plurality of target data may be input by a user, after which the apparatus performing the method stores the plurality of target data.

As an alternative embodiment, when determining the first target data matched with the first display unit based on the initial data and the pre-stored plurality of target data, various manners may be adopted, for example, target data satisfying the target data matching condition among the pre-stored plurality of target data may be determined as the first target data matched with the first display unit based on the initial data. The first target data matched with the first display unit is determined according to the target data matching condition, so that the determined first target data is matched with the first display unit in condition, namely, is determined according to the corresponding matching standard, and the validity of the matched first target data can be ensured to a certain extent.

As an alternative embodiment, the target data matching condition may include a plurality of types, and for example, may include at least one of: the first display unit can be achieved after correction; the deviation between the first display unit and the initial data of the first display unit is not greater than a preset threshold value or not exceeding a preset range; closest to the initial data of the first display unit.

As an alternative example, the first display unit can be corrected to include a plurality of situations. For example, taking luminance as an example, the first display unit can reach a minimum value of luminance of the light point which can be understood that the target data does not exceed the preset range of the first display unit after correction. For another example, taking chromaticity as an example, the first display unit can be corrected to achieve that the color gamut corresponding to the target data is within the color gamut of the light points in the preset range of the first display unit. For another example, taking the luminance and chrominance as an illustration, the first display unit can reach a minimum value that can be understood as the luminance of the light point of the target data not exceeding the preset range of the first display unit after correction, and the first display unit can reach a color gamut that can be understood as the color gamut corresponding to the target data is within the color gamut of the light point of the preset range of the first display unit after correction. The definition that the first display unit can reach after correction can be set according to the actual situation. The above are examples only.

The target data matching condition is that the first display unit can reach after correction, and the first target data obtained through matching is that the first display unit can reach after correction, so that the possibility that the first target data cannot reach after correction is prevented, the condition of invalid matching is effectively avoided, and on the other hand, the matching efficiency is effectively improved. When the target data matching condition is that the deviation between the target data matching condition and the initial data of the first display unit is not larger than a preset threshold value or not exceeding a preset range, the first target data matched and the initial data are allowed to be different to some extent, but the difference is limited. The matching condition of the target data can limit the matched first target data in a limited way, and accuracy of the matched first target data is improved. When the target data matching condition is closest to the initial data of the first display unit, the closest to the initial data indicates that the first target data is the most accurate target data. Therefore, according to the closest approach to the initial data in the plurality of target data, the accuracy of the matched first target data can be ensured to a certain extent. The above-mentioned target data matching conditions may be used to determine the first target data individually or in combination.

In an alternative embodiment, when the target data matching condition is closest to the initial data of the first display unit, when determining the first target data matching the first display unit according to the initial data and the pre-stored plurality of target data, the method may include the steps of: and determining target data which is not larger than the initial data and is closest to the initial data as first target data matched with the first display unit according to the prestored plurality of target data. Namely, one piece of data meeting the conditions is selected from a plurality of prestored target data to serve as target data, so that unified setting and debugging are convenient. The above condition is the target data closest to the initial data, and the luminance loss of the minimum initial data of the light point in the whole first display unit can be reduced as much as possible.

As an alternative embodiment, determining, as the first target data matched with the first display unit, target data which is not greater than and closest to the initial data, based on a plurality of target data which are pre-stored, may include the steps of: sequencing a plurality of prestored target data from big to small or from small to big to obtain a sequencing result; and comparing the target data in the sequencing result with the initial data in sequence, and determining the first target data which is not more than the initial data as first target data matched with the first display unit. In determining the first target data described above, only the condition that the target data matches is considered as the condition closest to the initial data of the first display unit. In this embodiment, to further achieve accuracy of the matched first target data, the target data matching condition may be combined with another target data matching condition, for example, a target data matching condition that a deviation between the target data and initial data of the first display unit is not greater than a preset threshold or not exceeding a preset range. For example, the target data in the sorting result is sequentially compared with the initial data, and the first target data which is not more than the initial data and whose difference from the initial data is smaller than a predetermined threshold range is determined as the first target data matched with the first display unit. Namely, sequencing a plurality of prestored target data according to a certain sequence to obtain a sequencing result; and sequentially comparing the initial data with a plurality of pre-stored target data in the sequencing result to determine first target data which is not larger than the initial data as first target data matched with the first display unit. When the comparison is performed according to the sorting result, the comparison may be performed according to the order from large to small in the sorting result, so that the first target data which is not greater than the initial data can be determined more quickly, and the efficiency is improved. After the data which is smaller than the initial data and is closest to the initial data, namely the first target data, the initial data of the first display unit can be adjusted according to the first target data, so that the first target data is guaranteed to be closest to the initial data, the loss of the bright and chromaticity data of the first display unit can be reduced as much as possible when the LED display unit is adjusted, the performance of the first display unit is stabilized to a great extent, the display screen after demra is enabled to display more uniformly, and the display effect is better.

In addition, after the pre-stored plurality of target data are ordered from big to small or from small to big to obtain an ordering result, the target data in the ordering result are sequentially compared with the initial data, and the first target data which is not more than the initial data and the difference between the first target data and the initial data is smaller than a preset threshold range is determined to be used as the first target data matched with the first display unit. With the above processing, after finding the first not more than the initial data, it is required that the difference between the target data and the initial data is smaller than the predetermined threshold range, to determine that the found target data is the first target data. For example, when target values of luminance and chromaticity are included in the target data, the predetermined threshold ranges for luminance and chromaticity may be different, for example, the predetermined threshold range for luminance may be slightly larger and the predetermined threshold range for chromaticity may be relatively smaller.

Alternatively, the plurality of target data may be a plurality of target data arranged according to a preset rule. The preset rule may be from large to small or from small to large, and then the first target data satisfying the matching condition is determined as the first target data with reference to the above.

As an alternative embodiment, the target data satisfying the target data matching condition in the prestored plurality of target data is determined according to the initial data, and when the target data is used as the first target data matched with the first display unit, the target data satisfying the target data matching condition can be one or a plurality of target data. For example, in the case where the target data satisfying the target data matching condition is one, the target data satisfying the target data matching condition is determined as the first target data matching the first display unit; or in the case that the target data satisfying the target data matching condition is plural, determining the first target data matching the first display unit from the plural target data satisfying the target data matching condition according to the selected rule. The above selected rule may be various, and for example, may include at least one of the following: closest to the initial data, stock demand selection, user instruction selection, and random selection.

Also, taking the target matching condition as the target data closest to the initial data as an example, determining, according to a plurality of pre-stored target data, target data which is not greater than the initial data and closest to the initial data, as the first target data matched with the first display unit, the method may include the following steps: searching whether target data which is not more than initial data exists in a plurality of prestored target data; and determining the target data closest to the initial data as first target data matched with the first display unit when the search result is that the target data which is not more than the initial data exists. If the search result is that there is no more than one target data than the initial data, and if there is one or more target data than the initial data, determining that the target data not more than the initial data is the first target data; in the case where there are a plurality of target data not larger than the initial data, the target data closest to the initial data is determined as first target data matching the first display unit from among the plurality of target data not larger than the initial data. Through the processing, the target data closest to the initial data can be selected as the first target data preferentially, and a basis is provided for subsequent adjustment according to the first target data.

As described above, in determining the target data closest to the initial data among the plurality of target data that is not larger than the initial data as the first target data that matches the first display unit, the difference between the first target data and the initial data may be within a predetermined threshold range. For example, it may be determined whether to perform selection of the first target data according to the threshold, that is, when determining the to-be-determined target data closest to the initial data from among the plurality of target data not larger than the initial data, if the difference between the to-be-determined target data and the initial data is within a predetermined threshold range, determining that the to-be-determined target data is the target data closest to the initial data as the first target data matched with the first display unit. And determining the selection of the first target data according to whether the difference value between the target data to be determined and the initial data is within a preset threshold range, so that the selection of the first target data meets the actual requirement, and the possibility that the difference value between the target data to be determined and the initial data is too large or too small is avoided.

As an alternative embodiment, when determining target data matching the first display unit from a plurality of target data stored in advance, it is also possible to store a case where none of the plurality of target data matches the first display unit, and therefore, in a case where there is no target data satisfying the target data matching condition among the plurality of target data stored in advance, it is also necessary to determine the first target data matching the first display unit. For example, it may be implemented in the following manner: and creating first target data according to the initial data, and adding the first target data into a target database pre-storing a plurality of target data. Through the processing, whether the target data matched with the first display unit exist or not can be searched from the prestored multiple target data, and when the searching result is that the target data matched with the first display unit does not exist, the first target data are newly built according to the initial data, and the target data matched with the first display unit are supplemented so as to be adjusted according to the newly built first target data. When the first target data is newly built according to the initial data, the attenuated data can be obtained in a mode of proportional attenuation of the initial data, the attenuated data is used as the first target data, and then the prestored plurality of target data are enriched, so that the effect of continuously perfecting the target database is achieved.

As an alternative embodiment, the new first target data may be added to a target database storing a plurality of target data, where the target database may be obtained in a plurality of ways, for example, a target database obtained through a large amount of data experience, or a target database obtained by calculating the LED display unit through a device.

As an alternative embodiment, the correction method of the display unit according to the embodiment of the present application may also be applied to one display unit, or may also be applied to a plurality of display units. Moreover, the display unit correction method can be applied to a plurality of display units, and further shows the superiority. For example, for a second display unit different from the first display unit, a correction method corresponding to the first display unit may be employed for effective correction: acquiring initial data of a second display unit; determining second target data matched with the second display unit according to the initial data of the second display unit and the prestored multiple target data, wherein the optical specifications of the first display unit and the second display unit are different, and the optical specifications comprise: at least one of a light emitting chip specification, a luminance specification, a chromaticity specification, and a luminance-chromaticity specification, the first target data and the second target data being different; and determining a target correction coefficient of the second display unit according to the initial data of the second display unit and the second target data matched with the second display unit.

Alternatively, the light emitting chip may be an LED chip.

The adopted light emitting chips of the display units have different specifications and possibly correspond to different brightness levels, so that the method of the embodiment of the application is adopted to respectively determine the target data corresponding to the display units according to the brightness levels corresponding to the display units and correct according to the respectively determined target data, so that the obtained target data are corresponding to the display units, and the problem of resource waste caused by correcting by adopting uniform target data in the related art is effectively avoided.

Alternatively, the preset thresholds corresponding to different colors may be the same or different.

Assuming that the optical specification includes a brightness specification, the brightness difference corresponding to different target data is above a preset threshold, alternatively, the preset threshold may be 10%. Assuming that the optical specification includes a chromaticity specification, chromaticity differences corresponding to different target data are above a preset threshold, alternatively, the preset threshold may be 3nm.

Alternatively, the different target data may be a larger difference between the luminances, a smaller difference between the chromaticities, a smaller difference between the luminances, a larger difference between the chromaticities, and a larger difference between the luminance and the luminance, which is not limited herein.

In the case where the optical specification includes a luminance specification, a ratio between a maximum luminance and a minimum luminance between the same optical specification is not greater than a preset ratio threshold or a difference between the same optical specification is not greater than a preset luminance difference threshold;

in the case where the optical specifications include chromaticity specifications, a difference between dominant wavelengths for the same color between the same optical specifications is not greater than a preset chromaticity difference threshold or a chromaticity difference for the same color is not greater than a preset chromaticity difference threshold.

That is, the method of the present application can correct display units of various specifications. Alternatively, the corresponding threshold may be determined according to LED chip classification rules of the upstream screen plant. In a related scheme, an upstream screen factory needs to classify display units into a plurality of gears based on the LED chip classification rule, and each display unit of each gear corresponds to a set of target data. The step that needs the upstream screen factory to carry out the grading can be transferred to the downstream correction end to carry out the grading, and the working complexity of the upstream screen factory can be simplified.

Optionally, in the optical specification of the display unit, in a case where the optical specification includes a light emitting chip specification, the specification of the light emitting chip on the first display unit and the specification of the light emitting chip on the second display unit are different; in the case where the optical specification includes a chromaticity specification, for the same color, a difference between the dominant wavelength of the first display unit and the dominant wavelength of the second display unit is above a preset difference threshold; in the case where the optical specification includes a luminance specification, a ratio between the luminance of the first display unit and the luminance of the second display unit is not less than a preset ratio threshold.

The difference between the dominant wavelengths of the same color is above a preset difference threshold; the ratio between the brightness of the light emitting chips of different specifications is not less than a preset ratio threshold. The ratio between the luminances of the light emitting chips of the different specifications may be a ratio between the maximum luminance and the minimum luminance of the light emitting chips of the different specifications, a ratio between the maximum luminance and the maximum luminance of the light emitting chips of the different specifications, or a ratio between the minimum luminance and the minimum luminance of the light emitting chips of the different specifications.

Alternatively, the first display unit may include two or more light emitting chip specifications, wherein a difference between dominant wavelengths of light emitting chips of different specifications for the same color is above a preset difference threshold, and/or a ratio between a luminance of a light emitting chip of a first specification and a luminance of a light emitting chip of a second specification in different specifications is not less than a preset ratio threshold. That is, the first display unit may include light emitting chips of different specifications, and the specifications of the included light emitting chips are greatly different.

It should be noted that the preset difference threshold and the preset proportion threshold may be flexibly determined according to a specific situation of the display unit, for example, the preset difference threshold may be 5nm, 4nm or 6nm, and the preset proportion threshold may be 1.3. The preset difference threshold between the brightnesses may be 10%. In addition, the above threshold is merely an example, and other suitable modifications to the above threshold can be applied to the embodiments of the present application, which are not limited in this application.

Alternatively, in the proportional relation of the present application, the brightness may be the maximum brightness, the minimum brightness, or the average brightness.

For example, taking the maximum luminance as an example, the ratio between the maximum luminance of the first display unit and the maximum luminance of the second display unit is not less than the preset ratio threshold.

For another example, taking the maximum luminance as an example, the ratio between the maximum luminance of the first specification light emitting chip and the maximum luminance of the second specification light emitting chip is not less than a preset ratio.

As an alternative embodiment, after determining the target correction coefficient of the first display unit, the optical homogenization Demura processing is performed on the first display unit according to the target correction coefficient. According to the relation between the initial data and the target data, the target correction coefficient is determined to perform optical homogenization Demura processing on the target display unit, so that the phenomenon of optical non-uniformity is effectively removed, the phenomenon of various marks caused by uneven brightness of a display is avoided, the difference of visually perceived colors is reduced, the technical problem that when the LED display unit is corrected in the related art, the uniform target value is adopted to perform correction, and the technical problem of larger brightness and/or color gamut loss is caused, and the experience of people when watching an LED display screen is enhanced.

Based on the foregoing embodiments and optional embodiments, an optional implementation is provided, and is specifically described below.

In the related art, the conventional demux method is to preset a set of target values, and demux all LED units according to the preset target values, but this method has the following problems: 1. if the target value is not reasonable, the NG rate (probability of failing) will be high. 2. A large amount of sample data must be collected first to obtain the preset target value, otherwise, a reasonable preset target value cannot be found accurately. 3. If more LED units are required to reach the preset target value, the target value brightness and the attenuation of the color gamut range must be large enough.

In view of this, an alternative embodiment of the present invention provides a scheme for calculating a target value of demux and post-demux grading to overcome the brightness and color gamut in Mura, which can automatically calculate the target value scheme and perform reasonable grading according to different target values of demux.

Mode one: and acquiring a target brightness value set and a target color gamut range set.

S1, collecting brightness and chromaticity data of all the lamp points of the current display unit.

S2, calculating the minimum brightness value and the minimum color gamut range of all the light points (also possible to be part of the light points such as 95 percent of the light points) of the current display unit.

Wherein, the color gamut range can be expressed by color gamut area, and the color gamut area calculating mode is as follows: and mapping RGB chromaticity information of a certain lamp point to a color gamut map to obtain three RGB point coordinates, wherein the three RGB point coordinates are the color gamut range of the lamp point.

S3, FIG. 2 is a flowchart of computing and archiving a Demura target value applied by a correction method of a display unit according to an alternative embodiment of the invention, as shown in FIG. 2, to find the nearest luminance target value and color gamut target range of the current display unit. The following is a detailed description:

taking luminance values as an example for illustration:

first round:

the initial target value list is empty, the A display unit with the input brightness value of 100 goes to the no in the figure, and if the attenuation of a certain proportion is the attenuation 10 brightness value, T' is 90 and is stored as T1 in the target value list.

A second wheel:

a display unit with brightness of 100 is input, brightness is larger than T1, and Demura is performed according to a value 90 of a target value T1.

Third wheel:

and B display unit with input brightness of 80, wherein the brightness is larger than T1, if the brightness goes to the figure, the brightness is attenuated according to a certain proportion, and then T' is 70 and is stored as T2 into a target value list.

Fourth wheel:

b display unit with input brightness of 80, brightness less than T1, and continuing comparison, brightness greater than T2, and performing Demura according to value 70 of target value T2.

And so on.

Mode two: and importing a target brightness value set and a target color gamut range set.

S1, recording n-grade different target values in full-automatic Demura equipment.

S2, collecting brightness and chromaticity data of all the lamp points of the current display unit.

S3, calculating all the light points (also possible to be part of the light points such as 95 percent of the light points) of the current display unit and the minimum color gamut range.

S4, referring to and archiving the Demura target value, FIG. 3 is a flowchart of referring to and archiving the Demura target value applied to the correction method of the display unit according to the alternative embodiment of the invention, and as shown in FIG. 3, searching for the nearest brightness target value and color gamut target range of the current display unit.

S5, the full-automatic Demura equipment classifies the display unit into n grades of different products according to the target value list.

Taking the color gamut range as an example, when the color gamut range is adjusted for different display units by using the same target preset value, the target color gamut range required to be adjusted for different display units is the same, and a large amount of color gamut ranges are lost; when the different target preset values of the embodiment are adopted to respectively adjust the color gamut ranges of the corresponding display units, the appropriate target preset value can be selected according to the characteristics of the display units, so that the color gamut range with overlarge loss is avoided.

Thus, by the alternative embodiments described above, at least the following benefits may be achieved:

(1) Multiple groups of target values can be selected, so that all lamp lighting brightness values are guaranteed, and the sacrifice is minimum when the color gamut range is attenuated;

(2) In the first mode, the situation that the target value cannot be achieved does not exist when the LED unit is fully-automatic Demura;

(3) In the first mode, a large amount of sample data is not required to be collected to calculate a reasonable target value;

(4) The LED unit can attenuate according to the characteristics of the LED unit, and the situation that part of the unit attenuates much does not exist;

(5) The LED display units in the same batch after the same target value Demura can be spliced at will;

(6) And automatically realizing product classification and grading.

It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present invention is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present invention. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present invention.

From the description of the above embodiments, it will be clear to a person skilled in the art that the method according to the above embodiments may be implemented by means of software plus the necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method of the various embodiments of the present invention.

Example 2

According to an embodiment of the present invention, there is also provided an apparatus for implementing the above-mentioned correction method of a display unit, and fig. 4 is a block diagram of a structure of a correction apparatus of a display unit according to an embodiment of the present invention, as shown in fig. 4, the apparatus including: the acquisition module 402, the first determination module 404 and the second determination module 406 are described in detail below.

An obtaining module 402, configured to obtain initial data of the first display unit, where the initial data includes initial luminance data, initial chromaticity data, or initial luminance chromaticity data; a first determining module 404, coupled to the acquiring module 402, for determining first target data matched with the first display unit according to the initial data and a plurality of pre-stored target data, wherein the target data includes target luminance data, target chromaticity data or target luminance chromaticity data; the second determining module 406, coupled to the first determining module 404, is configured to determine a target correction coefficient of the first display unit according to the initial data and the first target data matched with the first display unit.

Here, the above-mentioned obtaining module 402, the first determining module 404 and the second determining module 406 correspond to steps S102 to S106 in the correction method for implementing the display unit, and the plurality of modules are the same as the examples and application scenarios implemented by the corresponding steps, but are not limited to those disclosed in the above-mentioned embodiment 1.

According to an embodiment of the present invention, there is also provided an automatic display unit correction system, fig. 5 is a block diagram of a structure of a correction system of a display unit according to an embodiment of the present invention, as shown in fig. 5, including: the system is described below with respect to the acquisition station 52, the transfer apparatus 54 and the calibration analysis apparatus 56.

The collecting station 52 is provided with collecting equipment; the conveying device 54 is connected to the collecting station 52 and is used for conveying the display unit and conveying the display unit to the collecting station for optical collection; the correction analysis device 56 is connected with the acquisition device 54, and is used for acquiring initial data of a plurality of display units acquired by the acquisition device at the same time or in a time-sharing manner, and determining target data corresponding to each display unit in the plurality of display units according to the initial data of the plurality of display units and the prestored plurality of target data, wherein a first part of display units in the plurality of display units correspond to first target data, a second part of display units in the plurality of display units correspond to second target data, the first target data and the second target data are different, and the first target data and the second target data belong to the prestored plurality of target data; the correction analysis device is further used for obtaining correction coefficients of each display unit in the first part of display units according to the initial data of each display unit in the first part of display units and the first target data; and obtaining the correction coefficient of each display unit in the second part display unit according to the initial data and the second target data of each display unit in the second part display unit.

Example 3

Embodiments of the present disclosure may provide a correction device of a display unit, which may be a terminal. In this embodiment, the correction device of the display unit may be any one of the computer terminal devices in the computer terminal group as one kind of terminal. Alternatively, in this embodiment, the terminal may be a terminal device such as a mobile terminal.

Alternatively, fig. 6 is a block diagram of a terminal according to an exemplary embodiment. As shown in fig. 6, the terminal may include: one or more (only one is shown) processors 61, a memory 62 for storing processor-executable instructions; wherein the processor is configured to execute instructions to implement the method of correcting a display unit of any one of the above.

The memory may be used to store software programs and modules, such as program instructions/modules corresponding to the method and apparatus for correcting a display unit in the embodiments of the present disclosure, and the processor executes the software programs and modules stored in the memory, thereby performing various functional applications and correcting the display unit, that is, implementing the method for correcting a display unit described above. The memory may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include memory remotely located relative to the processor, which may be connected to the computer terminal via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The processor may call the information and the application program stored in the memory through the transmission device to perform the following steps: acquiring initial data of a first display unit, wherein the initial data comprises initial brightness data, initial chromaticity data or initial brightness chromaticity data; determining first target data matched with the first display unit according to the initial data and a plurality of pre-stored target data, wherein the target data comprises target brightness data, target chromaticity data or target brightness data; and determining a target correction coefficient of the first display unit according to the initial data and the first target data matched with the first display unit.

Optionally, the above processor may further execute program code for: determining first target data matched with the first display unit according to the initial data and the prestored multiple target data comprises the following steps: and determining target data meeting target data matching conditions in the prestored plurality of target data as first target data matched with the first display unit according to the initial data.

Optionally, the above processor may further execute program code for: the target data matching condition includes at least one of: the first display unit can be achieved after correction; the deviation between the first display unit and the initial data of the first display unit is not greater than a preset threshold value or not exceeding a preset range; closest to the initial data of the first display unit.

Optionally, the above processor may further execute program code for: determining target data meeting target data matching conditions among a plurality of pre-stored target data as first target data matched with a first display unit according to initial data, wherein the target data comprises: in the case that the target data satisfying the target data matching condition is one, determining the target data satisfying the target data matching condition as first target data matching with the first display unit; or in the case that the target data satisfying the target data matching condition is plural, determining the first target data matching the first display unit from the plural target data satisfying the target data matching condition according to the selected rule.

Optionally, the above processor may further execute program code for: the selected rule includes at least one of: closest to the initial data, stock demand selection, user instruction selection, and random selection.

Optionally, the above processor may further execute program code for: the determining, according to the initial data, target data meeting target data matching conditions in a plurality of pre-stored target data as first target data matched with the first display unit, including: sorting a plurality of pre-stored target data to obtain a sorting result, sequentially comparing the target data in the sorting result with the initial data, and determining first target data meeting the target data matching condition as first target data matched with the first display unit; or the prestored plurality of target data are a plurality of target data arranged according to a preset rule, the prestored plurality of target data are sequentially compared with the initial data, and first target data meeting the target data matching condition are determined to be used as first target data matched with the first display unit.

Optionally, the above processor may further execute program code for: under the condition that target data meeting target data matching conditions do not exist in a plurality of pre-stored target data, the first target data are newly built according to the initial data, and the first target data are added into a target database pre-storing the plurality of target data.

Optionally, the above processor may further execute program code for: the first target data newly established according to the initial data comprises the following steps: proportional attenuation is carried out on the initial data to obtain attenuated data; and taking the attenuated data as first target data.

Optionally, the above processor may further execute program code for: the target data are matched with the display units of various optical specifications in a one-to-one correspondence manner; or the plurality of target data are obtained based on sample display units of various optical specifications; or the difference between the optical specifications corresponding to different target data is above a preset threshold value; wherein the optical specification comprises: at least one of a luminance specification, a chromaticity specification, and a luminance-chromaticity specification.

Optionally, the above processor may further execute program code for: acquiring initial data of a second display unit; determining second target data matched with the second display unit according to the initial data of the second display unit and the prestored multiple target data, wherein the optical specifications of the first display unit and the second display unit are different, and the optical specifications comprise: at least one of a light emitting chip specification, a luminance specification, a chromaticity specification, and a luminance-chromaticity specification, the first target data and the second target data being different; and determining a target correction coefficient of the second display unit according to the initial data of the second display unit and the second target data matched with the second display unit.

Optionally, the above processor may further execute program code for: the first display unit comprises two or more light emitting chip specifications, different light emitting chip specifications correspond to different optical specifications, and the optical specifications comprise at least one of brightness specifications, chromaticity specifications and brightness and chromaticity specifications.

Optionally, the above processor may further execute program code for: in the case where the optical specification includes a luminance specification, a ratio between a maximum luminance and a minimum luminance between the same optical specification is not greater than a preset ratio threshold or a difference between the same optical specification is not greater than a preset luminance difference threshold; in the case where the optical specifications include chromaticity specifications, a difference between dominant wavelengths for the same color between the same optical specifications is not greater than a preset chromaticity difference threshold or a chromaticity difference for the same color is not greater than a preset chromaticity difference threshold.

Optionally, the above processor may further execute program code for: the initial data of the first display unit is the minimum initial data of the lamp points in the preset range in the first display unit.

Optionally, the above processor may further execute program code for: the light points within the preset range comprise one of the following: all the light points in the first display unit are not less than the preset number proportion of the light points in the first display unit.

Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be implemented by a program for instructing a terminal device to execute in association with hardware, the program may be stored in a computer readable storage medium, and the storage medium may include: flash disk, read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), magnetic or optical disk, and the like.

Example 4

In an exemplary embodiment, there is also provided a computer-readable storage medium including instructions that, when executed by a processor of a terminal, enable the terminal to perform the method of correcting a display unit of any one of the above. Alternatively, the computer readable storage medium may be a non-transitory computer readable storage medium, for example, a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Alternatively, in this embodiment, the computer readable storage medium may be used to store the program code executed by the method for correcting the display unit provided in the foregoing embodiment, and the specific content is referred to the corresponding method above, which is not described herein for brevity.

Alternatively, in this embodiment, the above-mentioned computer-readable storage medium may be located in any one of the computer terminals in the computer terminal group in the computer network, or in any one of the mobile terminals in the mobile terminal group.

The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.

In the several embodiments provided in the present application, it should be understood that the disclosed technology content may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims

1. A method for calibrating a display unit, comprising:

acquiring initial data of a first display unit, wherein the initial data comprises initial brightness data, initial chromaticity data or initial brightness chromaticity data;

determining first target data matched with the first display unit according to the initial data and a plurality of pre-stored target data, wherein the target data comprises target brightness data, target chromaticity data or target brightness data;

determining a target correction coefficient of the first display unit according to the initial data and first target data matched with the first display unit;

wherein the method further comprises: acquiring initial data of a second display unit; determining second target data matched with the second display unit according to the initial data of the second display unit and a plurality of pre-stored target data, wherein the optical specifications of the first display unit and the second display unit are different, and the optical specifications comprise: at least one of a light emitting chip specification, a luminance specification, a chromaticity specification, and a luminance-chromaticity specification, the first target data and the second target data being different; and determining a target correction coefficient of the second display unit according to the initial data of the second display unit and second target data matched with the second display unit.

2. The method of claim 1, wherein determining first target data matching the first display unit based on the initial data and a pre-stored plurality of target data comprises:

and determining target data meeting target data matching conditions in a plurality of prestored target data as first target data matched with the first display unit according to the initial data.

3. The method of claim 2, wherein the target data matching condition comprises at least one of:

the first display unit can be achieved after correction;

the deviation between the first display unit and the initial data of the first display unit is not greater than a preset threshold value or not exceeding a preset range;

closest to the initial data of the first display unit.

4. A method according to claim 2 or 3, wherein the determining, from the initial data, target data satisfying a target data matching condition among a plurality of pre-stored target data as first target data matched with the first display unit, comprises:

in the case that the target data satisfying the target data matching condition is one, determining the target data satisfying the target data matching condition as first target data matching the first display unit; or (b)

And determining first target data matched with the first display unit from the plurality of target data meeting the target data matching condition according to a selected rule when the target data meeting the target data matching condition is a plurality of target data.

5. The method of claim 4, wherein the selected rule comprises at least one of: closest to the initial data, stock demand selection, user instruction selection, and random selection.

6. A method according to claim 2 or 3, wherein the determining, from the initial data, target data satisfying a target data matching condition among a plurality of pre-stored target data as first target data matched with the first display unit, comprises:

sorting a plurality of pre-stored target data to obtain a sorting result, sequentially comparing the target data in the sorting result with the initial data, and determining first target data meeting the target data matching condition as first target data matched with the first display unit; or (b)

The pre-stored target data are arranged according to a preset rule, the pre-stored target data are sequentially compared with the initial data, and first target data meeting the target data matching condition are determined to be used as first target data matched with the first display unit.

7. A method according to claim 2 or 3, characterized in that the method further comprises:

under the condition that target data meeting target data matching conditions do not exist in a plurality of pre-stored target data, the first target data are newly built according to the initial data, and the first target data are added into a target database pre-storing the plurality of target data.

8. The method of claim 7, wherein the updating the first target data based on the initial data comprises:

proportional attenuation is carried out on the initial data to obtain attenuated data;

and taking the attenuated data as the first target data.

9. The method of claim 1, wherein the step of determining the position of the substrate comprises,

the target data are matched with the display units of various optical specifications in a one-to-one correspondence manner; or (b)

The plurality of target data are obtained based on sample display units with various optical specifications; or (b)

The difference between the optical specifications corresponding to different target data is above a preset threshold value;

wherein the optical specification comprises: at least one of a luminance specification, a chromaticity specification, and a luminance-chromaticity specification.

10. The method of claim 1, wherein the first display unit comprises two or more light emitting chip specifications, different light emitting chip specifications corresponding to different optical specifications, the optical specifications comprising at least one of a luminance specification, a chromaticity specification, and a luminance-chromaticity specification.

11. The method according to any one of claims 9 to 10, wherein,

12. The method according to any one of claims 1 to 3, 9 to 10, wherein the initial data of the first display unit is the minimum initial data of the light points within a preset range in the first display unit.

13. The method of claim 12, wherein the light points within the predetermined range comprise one of: and all the light points in the first display unit are not less than the preset number proportion of the light points in the first display unit.

14. A correction device for a display unit, comprising:

the device comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring initial data of a first display unit, and the initial data comprise initial brightness data, initial chromaticity data or initial brightness data;

A first determining module, configured to determine first target data matched with the first display unit according to the initial data and a plurality of pre-stored target data, where the target data includes target luminance data, target chromaticity data, or target luminance chromaticity data;

a second determining module, configured to determine a target correction coefficient of the first display unit according to the initial data and first target data matched with the first display unit;

wherein the device is further for: acquiring initial data of a second display unit; determining second target data matched with the second display unit according to the initial data of the second display unit and a plurality of pre-stored target data, wherein the optical specifications of the first display unit and the second display unit are different, and the optical specifications comprise: at least one of a light emitting chip specification, a luminance specification, a chromaticity specification, and a luminance-chromaticity specification, the first target data and the second target data being different; and determining a target correction coefficient of the second display unit according to the initial data of the second display unit and second target data matched with the second display unit.

15. A correction system for a display unit, the system comprising:

the system comprises an acquisition station, wherein the acquisition station is provided with acquisition equipment;

the conveying equipment is used for conveying the display unit and conveying the display unit to the acquisition station for optical acquisition;

the correction analysis device is connected with the acquisition device and is used for acquiring initial data of a plurality of display units acquired by the acquisition device at the same time or in a time-sharing manner, and determining target data corresponding to each display unit in the plurality of display units according to the initial data of the plurality of display units and a plurality of pre-stored target data, wherein a first part of display units in the plurality of display units correspond to first target data, a second part of display units in the plurality of display units correspond to second target data, the first target data and the second target data are different, and the first target data and the second target data belong to the pre-stored plurality of target data;

the correction analysis device is further configured to obtain a correction coefficient of each display unit in the first portion display unit according to the initial data of each display unit in the first portion display unit and the first target data; and obtaining a correction coefficient of each display unit in the second part display unit according to the initial data of each display unit in the second part display unit and the second target data.