CN112185296B - Display panel brightness adjusting method and device - Google Patents

Abstract

The application provides a method and a device for adjusting brightness of a display panel. The display panel brightness adjusting method comprises the following steps: acquiring a first brightness value and a second brightness value of a panel to be adjusted; determining a reference brightness value of a panel to be adjusted; judging whether the difference value between the reference brightness value and the first brightness value or the second brightness value is larger than a first threshold value; if the difference value between the reference brightness value and the first brightness value or the second brightness value is larger than a first threshold value, determining a target brightness value according to the first threshold value, the reference brightness value, the first brightness value and the second brightness value, and adjusting the first brightness value and/or the second brightness value based on the target brightness value. According to the method and the device, the reference brightness value is determined according to the first brightness value and the second brightness value of the panel to be adjusted, and the target brightness value of the panel to be adjusted is obtained according to the first threshold value, the reference brightness value, the first brightness value and the second brightness value, so that the display brightness of different positions of the panel to be adjusted is uniform, and the display quality of the panel to be adjusted is improved.

Description

Display panel brightness adjusting method and device

Technical Field

The present disclosure relates to the field of display, and in particular, to a method and an apparatus for adjusting brightness of a display panel.

Background

With the improvement of the product requirements of people on the display panel, in order to meet the market demand, the display device gradually develops towards a large size.

In the conventional display panel, the size of the display panel is increased along with the increase of the display device, the extension of the data lines enables the difference between the resistance and the coupling capacitance at different positions of the data lines in the display panel to be obvious, and the voltages which can be reached by the sub-pixels corresponding to different scanning lines with longer distance difference are different under the condition that the charging time is the same, so that the display of the display panel is not uniform, and the display quality of the display panel is influenced.

Therefore, a method and an apparatus for adjusting the brightness of a display panel are needed to solve the above-mentioned problems.

Disclosure of Invention

The application provides a display panel brightness adjusting method and device, which are used for solving the problem that the display brightness of an existing display panel is not uniform.

In order to solve the technical problem, the technical scheme provided by the application is as follows:

the application provides a display panel brightness adjusting method, which comprises the following steps:

acquiring a first brightness value of a panel to be adjusted at a first position and a second brightness value of the panel to be adjusted at a second position;

determining a reference brightness value of the panel to be adjusted at a reference position according to the first brightness value and/or the second brightness value;

judging whether the difference value between the reference brightness value and the first brightness value or the second brightness value is larger than a first threshold value;

if the difference between the reference brightness value and the first brightness value or the second brightness value is greater than the first threshold, determining a target brightness value of the panel to be adjusted according to the first threshold, the reference brightness value, the first brightness value and/or the second brightness value, and adjusting the first brightness value of the first position or the second brightness value of the second position based on the target brightness value.

In the method for adjusting brightness of a display panel provided by the present application, the step of obtaining a first brightness value of a panel to be adjusted at a first position and a second brightness value of the panel to be adjusted at a second position includes:

acquiring a first adjusting parameter of the panel to be adjusted at the first position and a second adjusting parameter of the panel to be adjusted at the second position;

acquiring a first historical brightness value, a first historical adjustment parameter, a second historical brightness value and a second historical adjustment parameter of the panel to be adjusted at the first position in a preset historical adjustment period, and acquiring a third historical brightness value, a third historical adjustment parameter, a fourth historical brightness value and a fourth historical adjustment parameter of the panel to be adjusted at the second position in the preset historical adjustment period;

determining an association relationship between the first brightness value and the first adjustment parameter according to the first historical brightness value, the first historical adjustment parameter, the second historical brightness value and the second historical adjustment parameter, and determining an association relationship between the second brightness value and the second adjustment parameter according to the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter;

and determining the first brightness value based on the first adjusting parameter according to the association relation between the first brightness value and the first adjusting parameter, and determining the second brightness value based on the second adjusting parameter according to the association relation between the second brightness value and the second adjusting parameter.

In the method for adjusting brightness of a display panel provided by the present application, the step of determining a reference brightness value of the panel to be adjusted at a reference position according to the first brightness value and/or the second brightness value includes:

acquiring reference position information of the panel to be adjusted at the reference position, first position information of the panel to be adjusted at the first position and second position information of the panel to be adjusted at the second position;

determining an association relationship between the reference brightness value and the reference position information according to the first position information, the second position information, the first brightness value and the second brightness value;

and determining the reference brightness value based on the reference position information according to the incidence relation between the reference brightness value and the reference position information.

In the method for adjusting brightness of a display panel provided by the present application, the step of determining an association relationship between the reference brightness value and the reference position information according to the first position information, the second position information, the first brightness value, and the second brightness value includes:

acquiring a first linear relation between the reference brightness value and the reference position information according to the first position information, the first brightness value, the second position information and the second brightness value;

the relationship of the first linear relationship is:

wherein x1 and x2 are the first position information and the second position information, y1 and y2 are the first brightness value and the second brightness value, x is the reference position information, and y is the reference brightness value.

In the method for adjusting brightness of a display panel provided by the present application, the step of determining a reference brightness value of the panel to be adjusted at a reference position according to the first brightness value and/or the second brightness value includes:

acquiring a reference parameter of the panel to be regulated at the reference position, a first regulation parameter of the panel to be regulated at the first position and a second regulation parameter of the panel to be regulated at the second position;

determining the association relation between the reference brightness value and the reference parameter according to the first adjusting parameter, the second adjusting parameter, the first brightness value and the second brightness value;

and determining the reference brightness value based on the reference parameter according to the incidence relation between the reference brightness value and the reference parameter.

In the method for adjusting brightness of a display panel provided by the present application, the step of determining a reference brightness value of the panel to be adjusted at a reference position according to the first brightness value and/or the second brightness value includes:

acquiring a reference parameter of the panel to be regulated at the reference position, a first regulation parameter of the panel to be regulated at the first position and a second regulation parameter of the panel to be regulated at the second position;

determining the association relation between the reference brightness value and the reference parameter according to the first adjusting parameter, the second adjusting parameter, the first brightness value and the second brightness value;

and determining the reference brightness value based on the reference parameter according to the incidence relation between the reference brightness value and the reference parameter.

In the method for adjusting brightness of a display panel provided by the present application, the step of determining the association relationship between the reference parameter and the reference coefficient according to the first coefficient, the second coefficient, the first adjustment parameter, and the second adjustment parameter includes:

acquiring a second linear relation between the reference parameter and the reference coefficient according to the first coefficient, the second coefficient, the first adjusting parameter and the second adjusting parameter;

the second linear relationship has the relationship:

a1, a2 are the first coefficient, the second coefficient, b1, b2 are the first adjustment parameter and the second adjustment parameter, a is the reference coefficient, b is the reference parameter;

the first adjusting parameter is a first charging time, a first data voltage or a first duty ratio of the current panel to be adjusted at the first position, the second adjusting parameter is a second charging time, a second data voltage or a second duty ratio of the current panel to be adjusted at the second position, and the reference parameter is a reference charging time, a reference data voltage or a reference duty ratio of the current panel to be adjusted at the reference position;

the first coefficient is first position information or a first resistance value of the panel to be adjusted at the first position, and the second coefficient is second position information or a second resistance value of the panel to be adjusted at the second position; the reference coefficient is reference position information or a reference resistance value of the panel to be adjusted at the reference position.

In the method for adjusting brightness of a display panel provided by the present application, the step of determining a reference brightness value of the panel to be adjusted at a reference position according to the first brightness value and/or the second brightness value includes:

acquiring a reference parameter of the panel to be adjusted at the reference position;

acquiring a first historical brightness value, a first historical adjustment parameter, a second historical brightness value and a second historical adjustment parameter of the panel to be adjusted at the first position in a preset historical adjustment period; or acquiring a third history brightness value, a third history adjusting parameter, a fourth history brightness value and a fourth history adjusting parameter of the panel to be adjusted at the second position in a preset history adjusting period;

determining the incidence relation between the reference brightness value and the reference parameter according to the first historical brightness value, the first historical adjusting parameter, the second historical brightness value and the second historical adjusting parameter; or determining the incidence relation between the reference brightness value and the reference parameter according to the third history brightness value, the third history adjusting parameter, the fourth history brightness value and the fourth history adjusting parameter;

and determining the reference brightness value based on the reference parameter according to the incidence relation between the reference brightness value and the reference parameter.

In the brightness adjustment method for a display panel provided by the present application, the step of determining a target brightness value of the panel to be adjusted according to the first threshold, the reference brightness value, the first brightness value, and the second brightness value includes:

determining a first reference luminance value that makes the first difference smaller than or equal to the first threshold value, based on a first difference between the reference luminance value and the first luminance value;

determining a second reference luminance value that makes a second difference value of the reference luminance value and the second luminance value smaller than or equal to the first threshold value, based on the second difference value;

and determining a target brightness value of the panel to be adjusted in the next adjusting period according to the first reference brightness value and the second reference brightness value.

The application also provides a display panel brightness adjusting device which comprises an acquisition module, a calculation module, a judgment module and an adjusting module;

the acquisition module is used for acquiring a first brightness value of a panel to be adjusted at a first position and a second brightness value of the panel to be adjusted at a second position;

the calculation module is used for determining a reference brightness value of the panel to be adjusted at a reference position according to the first brightness value and/or the second brightness value;

the judging module is used for judging whether the difference value between the reference brightness value and the first brightness value or the second brightness value is larger than a first threshold value;

the adjusting module is configured to determine a target brightness value of the panel to be adjusted according to the first threshold, the reference brightness value, the first brightness value, and the second brightness value if a difference between the reference brightness value and the first brightness value or the second brightness value is greater than the first threshold, and adjust the first brightness value at the first position and/or the second brightness value at the second position based on the target brightness value.

Has the advantages that: according to the method and the device, the reference brightness value is determined according to the first brightness value and the second brightness value of the panel to be adjusted, and the target brightness value of the panel to be adjusted is obtained according to the first threshold value, the reference brightness value, the first brightness value and the second brightness value, so that the display brightness of different positions of the panel to be adjusted is uniform, and the display quality of the panel to be adjusted is improved.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a brightness adjustment method of a display panel according to the present application.

Fig. 2 is a schematic structural diagram of a display panel brightness adjusting device according to the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the existing display panel, the voltages reached by the sub-pixels corresponding to different scanning lines with a long distance difference in the same charging time are different, so that the display brightness of the display panel is not uniform, and the display quality of the display panel is affected. Based on this, the present application provides a method and an apparatus for adjusting brightness of a display panel.

Referring to fig. 1, the method for adjusting the brightness of the display panel includes:

s100, acquiring a first brightness value of a panel to be adjusted at a first position and a second brightness value of the panel to be adjusted at a second position.

In this embodiment, the first brightness value and the second brightness value represent the brightness of the panel to be adjusted at the first position and the second position, and the first brightness value and the second brightness value may be directly obtained by measurement.

In this embodiment, the first luminance value and the second luminance value may also be obtained in an indirect manner, and the step of the indirect obtaining manner includes:

s110, acquiring a first adjusting parameter of the panel to be adjusted at the first position and a second adjusting parameter of the panel to be adjusted at the second position.

In this embodiment, the first position and the second position may be any positions in the display area of the panel to be adjusted, for example: the panel to be adjusted further comprises a binding area located on one side of the display area, a data signal is transmitted into the display area through the binding area, the first position can be located on one side, close to the binding area, in the display area, and the second position can be located on one side, far away from the binding area, in the display area.

In this embodiment, the first adjustment parameter may be a first charging time, a first data voltage, or a first duty ratio of the current panel to be adjusted at the first position, and the second adjustment parameter may be a second charging time, a second data voltage, or a second duty ratio of the current panel to be adjusted at the second position.

S120, acquiring a first historical brightness value, a first historical adjustment parameter, a second historical brightness value and a second historical adjustment parameter of the panel to be adjusted at the first position in a preset historical adjustment period, and acquiring a third historical brightness value, a third historical adjustment parameter, a fourth historical brightness value and a fourth historical adjustment parameter of the panel to be adjusted at the second position in the preset historical adjustment period.

The first historical adjustment parameter and the second historical adjustment parameter in this embodiment are consistent with the first adjustment parameter in step S110, and the third historical adjustment parameter and the fourth historical adjustment parameter are consistent with the second adjustment parameter. For example: when the first adjusting parameter is the first charging time of the current panel to be adjusted at the first position, the first historical adjusting parameter and the second historical adjusting parameter are the first historical charging time and the second historical charging time of the panel to be adjusted at the second position in a preset historical adjusting period; and when the second adjusting parameter is the second charging time of the current panel to be adjusted at the second position, the third history adjusting parameter and the fourth history adjusting parameter are the third history charging time and the second history charging time of the panel to be adjusted at the second position in a preset history adjusting period.

S130, determining the association relationship between the first brightness value and the first adjusting parameter according to the first historical brightness value, the first historical adjusting parameter, the second historical brightness value and the second historical adjusting parameter, and determining the association relationship between the second brightness value and the second adjusting parameter according to the third historical brightness value, the third historical adjusting parameter, the fourth historical brightness value and the fourth historical adjusting parameter.

In this embodiment, the first brightness value and the first adjustment parameter may be in a linear correlation or other association relationship, and the second brightness value and the second adjustment parameter may be in a linear correlation or other association relationship.

S140, determining the first brightness value based on the first adjusting parameter according to the association relation between the first brightness value and the first adjusting parameter, and determining the second brightness value based on the second adjusting parameter according to the association relation between the second brightness value and the second adjusting parameter.

In this embodiment, an association relationship curve of the brightness value of the panel to be adjusted at the first position with respect to the adjustment parameter may be obtained according to the first historical brightness value, the first historical adjustment parameter, the second historical brightness value, and the second historical adjustment parameter, and the first brightness value may be determined according to the association relationship curve and the first adjustment parameter. Similarly, an association relationship curve of the brightness value of the panel to be adjusted at the first position with respect to the adjustment parameter may be obtained according to the third history brightness value, the third history adjustment parameter, the fourth history brightness value, and the fourth history adjustment parameter, and the second brightness value may be determined according to the association relationship curve and the second adjustment parameter.

The first brightness value and the second brightness value in the current adjusting period are obtained based on the first adjusting parameter according to the incidence relation between the first brightness value and the first adjusting parameter and the incidence relation between the second brightness value and the second adjusting parameter and based on the second adjusting parameter, so that the measurement of the first brightness value and the second brightness value in each adjusting process is avoided, and the adjustment of the panel to be adjusted is accelerated.

S200, determining a reference brightness value of the panel to be adjusted at a reference position according to the first brightness value and/or the second brightness value.

In this embodiment, step S200 may include:

s211, acquiring reference position information of the panel to be adjusted at the reference position, first position information of the panel to be adjusted at the first position and second position information of the panel to be adjusted at the second position.

In this embodiment, the reference position information, the first position information, and the second position information of the panel to be adjusted may be distances from a fixed point on the panel to be adjusted in a first direction from the reference position, the first position, and the second position; the distance or the number of the interval between the reference position, the first position and the second position and a certain fixed scanning line in the first direction can also be used; or the number of groups of the scanning lines corresponding to the reference position, the first position and the second position after the reference position, the first position and the second position are grouped by the number of the scanning lines in the first direction of the panel to be adjusted. The first direction is a direction parallel to the extending direction of the data lines of the panel to be adjusted.

In this embodiment, the reference position information, the first position information, and the second position information of the panel to be adjusted may be distances from a certain fixed point on the panel to be adjusted in a second direction from the reference position, the first position, and the second position; the distance or the number of the interval between the reference position, the first position and the second position and a fixed data line in the second direction can also be set; or the number of groups of the data lines corresponding to the reference position, the first position and the second position after the reference position, the first position and the second position are grouped by the number of data lines in the second direction of the panel to be adjusted. Wherein the second direction is a direction parallel to an extending direction of a scan line of the panel to be adjusted.

In this embodiment, the reference position information, the first position information, and the second position information of the panel to be adjusted may be coordinates formed by a distance from a fixed point on the panel to be adjusted in a first direction to the reference position, the first position, and the second position, and a distance from a fixed point on the panel to be adjusted in a second direction to the reference position, the first position, and the second position; the distance or the number of the spacing pieces between the reference position, the first position, and the second position in the first direction and a fixed scanning line, and the distance or the number of the spacing pieces between the reference position, the first position, and the second position in the second direction and a fixed data line may form coordinates; or, the coordinates are formed by the reference position, the first position, the group number of the scanning lines corresponding to the second position and the group number of the data lines corresponding to the reference position, the first position, the group number of the scanning lines corresponding to the second position after the reference position, the first position, the second position are grouped by the number of the scanning lines in the first direction of the panel to be adjusted, and the group number of the data lines corresponding to the reference position, the first position, the second position after the reference position, the first position, the second position are grouped by the number of the data lines in the second direction of the panel to be adjusted.

In this embodiment, when the reference position information, the first position information, and the second position information of the panel to be adjusted are the numbers of groups of the reference position, the first position, and the second position grouped by the number of scanning lines in the first direction of the panel to be adjusted, step S211 may include:

s211a, evenly grouping the scanning lines in sequence along the first direction, wherein the number of the scanning lines in each group is more than or equal to 1.

For example, the total number of the scan lines is 100, and the scan lines can be divided into 10 groups on average, and the number of the scan lines in each group is 10.

S211b, determining the grouping information of any scan line according to the number of scan lines in each group and the count of any scan line in the first direction.

For example, if the number of the scan lines in each group is 10 and the number of the scan lines is 100, the scan lines are divided into ten groups. If the initial group count is 1, the group count from the 1 st scan line to the 10 th scan line is 1. At this time, the group count of the 83 th scan line, i.e., the grouping information, is 9.

S211c, determining the reference position information, the first position information, and the second position information according to grouping information of any one of the scan lines, a reference bar count of the scan line corresponding to the reference position, a first bar count of the scan line corresponding to the first position, and a second bar count of the scan line corresponding to the second position.

In this embodiment, when the reference position information, the first position information, and the second position information of the panel to be adjusted are the numbers of groups of the reference position, the first position, and the second position grouped by the number of data lines in the second direction of the panel to be adjusted, the obtaining manner of the reference position information, the first position information, and the second position information is similar to that in steps S211a to S211c, but the difference is that the data lines are grouped in the second direction in this embodiment, and details are not repeated here.

In the present embodiment, when the reference position information, the first position information, and the second position information of the panel to be adjusted are coordinates formed by the number of groups of the panel to be adjusted grouped by the number of scanning lines in the first direction and the number of groups of the reference position, the first position, and the second position of the panel to be adjusted grouped by the number of data lines in the second direction, the reference position information, the first position information, and the second position information are obtained in a similar manner to steps S211a to S211c, except that in the present embodiment, the scanning lines are grouped in the first direction and the data lines are also grouped in the second direction, the reference position information may be represented by coordinates (c3, d3) the first position information may be represented by coordinates (c1, d1), and the second position information may be represented by coordinates (c2, d2), where c and d represent the number of groups of the scan lines corresponding to the reference position, the first position, or the second position in the first direction, and the number of groups of the data lines corresponding to the reference position, the first position, or the second position in the second direction.

In this embodiment, the scan lines are grouped along the first direction by the panel to be adjusted, and/or the data lines are grouped along the second direction by the panel to be adjusted, so that the panel to be adjusted is divided into blocks, thereby realizing the block brightness adjustment of the panel to be adjusted, and facilitating the acceleration of the brightness adjustment of the panel to be adjusted.

S212, determining the association relation between the reference brightness value and the reference position information according to the first position information, the second position information, the first brightness value and the second brightness value.

In this embodiment, a first linear relationship between the reference luminance value and the reference position information is obtained according to the first position information, the first luminance value, the second position information, and the second luminance value.

The relationship of the first linear relationship is:

wherein x1 and x2 are the first position information and the second position information, y1 and y2 are the first brightness value and the second brightness value, x is the reference position information, and y is the reference brightness value.

In this embodiment, the first location information is different from the second location information.

In this embodiment, when the first position information and the second position information are coordinates formed by groups of the first position and the second position grouped by the number of scanning lines in the first direction of the panel to be adjusted and groups of the first position and the second position grouped by the number of data lines in the second direction of the panel to be adjusted, if the coordinates (c1 and d1) of the first position information and the coordinates (c2 and d2) of the second position information are the same as c1 and c2 and are different from d1 and d2, d1 and d2 are selected to be substituted into the first linear relationship, if c1 and c2 are different and d1 and d2 are the same as each other, c1 and c2 are selected to be substituted into the first linear relationship, if c1 and c2 are different from each other and d1 and d2 are different from each other, c1 and c2 are selected to be substituted into the first linear relationship as desired as c1, c 56 or d1 and d2 are selected as desired.

S213, determining the reference brightness value based on the reference position information according to the incidence relation between the reference brightness value and the reference position information.

In this embodiment, the reference luminance value may be obtained by substituting the reference position information into the association relationship through the association relationship between the reference luminance value and the reference position information obtained in step S212 according to the first position information, the first luminance value, the second position information, and the second luminance value.

In this embodiment, step S200 may further include:

s221, acquiring a reference parameter of the panel to be adjusted at the reference position, a first adjusting parameter of the panel to be adjusted at the first position and a second adjusting parameter of the panel to be adjusted at the second position.

In this embodiment, the reference parameter may be a reference charging time, a reference data voltage, or a reference duty ratio of the current panel to be adjusted at the reference position, and the meanings of the first adjustment parameter and the second adjustment parameter are explained in step S110, and are not described herein again.

In this embodiment, the obtaining manner of the reference parameter may include:

s221a, acquiring a reference coefficient of the panel to be adjusted at the reference position, a first coefficient of the panel to be adjusted at the first position and a second coefficient of the panel to be adjusted at the second position.

S221b, determining the association relation between the reference parameter and the reference coefficient according to the first coefficient, the second coefficient, the first adjusting parameter and the second adjusting parameter.

In this embodiment, the step of determining the association relationship between the reference parameter and the reference coefficient according to the first coefficient, the second coefficient, the first adjustment parameter, and the second adjustment parameter includes:

and acquiring a second linear relation between the reference parameter and the reference coefficient according to the first coefficient, the second coefficient, the first adjusting parameter and the second adjusting parameter.

The second linear relationship has the relationship:

a1, a2 are the first coefficient and the second coefficient, b1, b2 are the first adjustment parameter and the second adjustment parameter, a is the reference coefficient, b is the reference parameter.

The first adjusting parameter is a first charging time, a first data voltage or a first duty ratio of the current panel to be adjusted at the first position, the second adjusting parameter is a second charging time, a second data voltage or a second duty ratio of the current panel to be adjusted at the second position, and the reference parameter is a reference charging time, a reference data voltage or a reference duty ratio of the current panel to be adjusted at the reference position.

The first coefficient is first position information or a first resistance value of the panel to be adjusted at the first position, and the second coefficient is second position information or a second resistance value of the panel to be adjusted at the second position; the reference coefficient is reference position information or a reference resistance value of the panel to be adjusted at the reference position.

In this embodiment, the meanings of the first location information, the second location information, and the reference location information are the same as or similar to those in step S100, and are not repeated herein.

Similarly, when the first position information and the second position information are coordinates formed by the number of groups of the panel to be adjusted grouped by the number of scanning lines in the first direction and the number of groups of the panel to be adjusted grouped by the number of data lines in the second direction, the coordinates (c1, d1) of the first position information and the coordinates (c2, d2) of the second position information are the same as c1 and c2, and are different from d1 and d2, d1 and d2 are selected to be substituted into the second linear relationship, c1 and c2 are different from each other, d1 and d2 are the same as each other, c1 and c2 are selected to be substituted into the second linear relationship, c1 and c2 are different from each other, d1 and d2 are selected arbitrarily to be substituted into c1, c2 or d1 and d 2.

In this embodiment, the first charging time, the first data voltage, and the first duty ratio are also related, and through the relationship between the first charging time, the first data voltage, and the first duty ratio, data of one of the first charging time, the first data voltage, and the first duty ratio can be obtained by obtaining data of the other two. The second charging time, the second data voltage, and the second duty ratio, and the reference charging time, the reference data voltage, and the reference duty ratio are the same.

S221c, determining the reference parameter based on the reference coefficient according to the incidence relation between the reference parameter and the reference coefficient.

For example, when the reference parameter is the reference charging time and the reference coefficient is the reference position information of the panel to be adjusted, the reference coefficient, that is, the reference charging time, may be obtained through the reference position information according to the second linear relation.

In this embodiment, the first adjustment parameter and the second adjustment parameter may be obtained by direct measurement, such as: directly measuring the first charging time, the first data voltage or the first duty ratio of the panel to be tested at the first position, and the second charging time, the second data voltage or the second duty ratio of the panel to be tested at the second position.

S222, determining the association relation between the reference brightness value and the reference parameter according to the first adjusting parameter, the second adjusting parameter, the first brightness value and the second brightness value.

S223, determining the reference brightness value based on the reference parameter according to the incidence relation between the reference brightness value and the reference parameter.

In this embodiment, step S200 may further include:

s231, acquiring a reference parameter of the panel to be adjusted at the reference position.

S232, acquiring a first historical brightness value, a first historical adjustment parameter, a second historical brightness value and a second historical adjustment parameter of the panel to be adjusted at the first position in a preset historical adjustment period; or acquiring a third history brightness value, a third history adjusting parameter, a fourth history brightness value and a fourth history adjusting parameter of the panel to be adjusted at the second position in a preset history adjusting period.

In this embodiment, the meanings of the first historical adjustment parameter, the second historical adjustment parameter, the third historical adjustment parameter, and the fourth historical adjustment parameter are the same as those in step S100, and are not described herein again.

S233, determining the incidence relation between the reference brightness value and the reference parameter according to the first historical brightness value, the first historical adjustment parameter, the second historical brightness value and the second historical adjustment parameter; or determining the association relation between the reference brightness value and the reference parameter according to the third history brightness value, the third history adjustment parameter, the fourth history brightness value and the fourth history adjustment parameter.

S234, determining the reference brightness value based on the reference parameter according to the incidence relation between the reference brightness value and the reference parameter.

S300, judging whether the difference value between the reference brightness value and the first brightness value or the second brightness value is larger than a first threshold value.

S400, if the difference between the reference brightness value and the first brightness value or the second brightness value is greater than the first threshold value, determining a target brightness value of the panel to be adjusted according to the first threshold value, the reference brightness value, the first brightness value and the second brightness value, and adjusting the first brightness value at the first position and/or the second brightness value at the second position based on the target brightness value.

In this embodiment, the step of determining the target brightness value of the display panel according to the first threshold, the reference brightness value, the first brightness value and the second brightness value includes:

determining a first reference luminance value that makes the first difference smaller than or equal to the first threshold value, according to a first difference between the reference luminance value and the first luminance value.

In this embodiment, the step of determining, according to a first difference between the reference brightness value and the first brightness value, a first reference brightness value for which the first difference is smaller than or equal to the first threshold value includes:

determining the association relation between the first difference value and the reference parameter according to the association relation between the reference brightness value and the reference parameter, the reference brightness value and the first brightness value;

in this embodiment, the association relationship between the reference brightness value and the reference parameter is obtained in step S200, or obtained in a manner the same as or similar to the manner in which the association relationship between the reference brightness value and the reference parameter is obtained in step S200, and details are not repeated here.

For example, when the reference parameter is a reference charging time, the correlation between the reference brightness value and the reference parameter may be a relation of the reference brightness value with respect to the reference charging time; the first difference value is the reference brightness value and the first brightness value; based on the two points, a relation of the first difference value with respect to the reference time can be obtained.

According to the incidence relation between the first difference and the reference parameter, adjusting the reference parameter until the first difference is smaller than or equal to a first threshold value, and acquiring the current reference parameter as a first reference parameter;

and acquiring the first reference brightness value based on the first reference parameter according to the incidence relation between the reference brightness value and the reference parameter.

Determining a second reference luminance value that makes a second difference value of the reference luminance value and the second luminance value smaller than or equal to the first threshold value, based on the second difference value.

In this embodiment, the step of determining, according to a second difference between the reference brightness value and the second brightness value, a second reference brightness value for which the second difference is smaller than or equal to the first threshold value includes:

determining the association relation between the second difference value and the reference parameter according to the association relation between the reference brightness value and the reference parameter, the reference brightness value and the second brightness value;

in this embodiment, the determination of the association relationship between the second difference and the reference parameter is the same as or similar to the determination of the association relationship between the first difference and the reference parameter, and is not repeated here.

According to the incidence relation between the second difference and the reference parameter, adjusting the reference parameter until the second difference is smaller than or equal to a first threshold value, and acquiring the current reference parameter as a second reference parameter;

and acquiring a second reference brightness value based on the second reference parameter according to the incidence relation between the reference brightness value and the reference parameter.

And determining a target brightness value of the display panel in the next adjusting period according to the first reference brightness value and the second reference brightness value.

In this embodiment, the step of determining the target brightness value of the panel to be adjusted in the next adjustment period according to the first reference brightness value and the second reference brightness value may include:

and acquiring the average value of the first reference brightness value and the second reference brightness value as a target brightness value of the next adjusting period of the panel to be adjusted.

In this embodiment, the step of determining the target brightness value of the panel to be adjusted in the next adjustment period according to the first reference brightness value and the second reference brightness value may include:

and acquiring an average value of the first brightness value, the second brightness value, the first reference brightness value and the second reference brightness value as a target brightness value of a next adjusting period of the panel to be adjusted.

In this embodiment, the step of determining the target brightness value of the panel to be adjusted in the next adjustment period according to the first reference brightness value and the second reference brightness value may include:

and selecting the average value of the maximum value and the minimum value of the four values removed as a target brightness value of the panel to be adjusted in the next adjusting period according to the first brightness value, the second brightness value, the first reference brightness value and the second reference brightness value.

For example, assuming that the first luminance value is 155, the second luminance value is 160, the first reference luminance value is 158, and the second reference luminance value is 163, the second luminance value and the first reference luminance value are selected as the target luminance values of the next adjustment period of the panel to be adjusted.

According to the display panel brightness adjusting method, the reference brightness value is determined according to the first brightness value and the second brightness value of the panel to be adjusted, and the target brightness value of the panel to be adjusted is obtained according to the first threshold value, the reference brightness value, the first brightness value and the second brightness value, so that the display brightness of the panel to be adjusted at different positions is uniform, and the display quality of the panel to be adjusted is improved.

Referring to fig. 2, the present application further provides a display panel brightness adjusting apparatus 100, which includes an obtaining module 10, a calculating module 20, a determining module 30, and an adjusting module 40.

The obtaining module 10 is configured to obtain a first brightness value of a panel to be adjusted at a first position and a second brightness value of the panel to be adjusted at a second position.

In this embodiment, the obtaining module 10 may be configured to obtain a first adjusting parameter of the panel to be adjusted at the first position and a second adjusting parameter of the panel to be adjusted at the second position; acquiring a first historical brightness value, a first historical adjustment parameter, a second historical brightness value and a second historical adjustment parameter of the panel to be adjusted at the first position in a preset historical adjustment period, and acquiring a third historical brightness value, a third historical adjustment parameter, a fourth historical brightness value and a fourth historical adjustment parameter of the panel to be adjusted at the second position in the preset historical adjustment period; determining an association relationship between the first brightness value and the first adjustment parameter according to the first historical brightness value, the first historical adjustment parameter, the second historical brightness value and the second historical adjustment parameter, and determining an association relationship between the second brightness value and the second adjustment parameter according to the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter; and determining the first brightness value based on the first adjusting parameter according to the association relation between the first brightness value and the first adjusting parameter, and determining the second brightness value based on the second adjusting parameter according to the association relation between the second brightness value and the second adjusting parameter.

The calculation module 20 is configured to determine a reference brightness value of the panel to be adjusted at a reference position according to the first brightness value and/or the second brightness value.

In this embodiment, the calculation module 20 may be configured to obtain reference position information of the panel to be adjusted at the reference position, first position information of the panel to be adjusted at the first position, and second position information of the panel to be adjusted at the second position; determining an association relationship between the reference brightness value and the reference position information according to the first position information, the second position information, the first brightness value and the second brightness value; and determining the reference brightness value based on the reference position information according to the incidence relation between the reference brightness value and the reference position information.

The calculating module 20 may be configured to obtain a first linear relationship between the reference brightness value and the reference position information according to the first position information, the first brightness value, the second position information, and the second brightness value;

the relationship of the first linear relationship is:

wherein x1 and x2 are the first position information and the second position information, y1 and y2 are the first brightness value and the second brightness value, x is the reference position information, and y is the reference brightness value.

In this embodiment, the calculation module 20 may be configured to obtain a reference parameter of the panel to be adjusted at the reference position, a first adjustment parameter of the panel to be adjusted at the first position, and a second adjustment parameter of the panel to be adjusted at the second position; determining the association relation between the reference brightness value and the reference parameter according to the first adjusting parameter, the second adjusting parameter, the first brightness value and the second brightness value; and determining the reference brightness value based on the reference parameter according to the incidence relation between the reference brightness value and the reference parameter.

The calculation module 20 is configured to obtain a reference coefficient of the panel to be adjusted at the reference position, a first coefficient of the panel to be adjusted at the first position, and a second coefficient of the panel to be adjusted at the second position;

determining the incidence relation between the reference parameter and the reference coefficient according to the first coefficient, the second coefficient, the first adjusting parameter and the second adjusting parameter;

and determining the reference parameter based on the reference coefficient according to the incidence relation between the reference parameter and the reference coefficient.

Wherein the calculating module 20 may be configured to obtain a second linear relationship between the reference parameter and the reference coefficient according to the first coefficient, the second coefficient, the first adjusting parameter and the second adjusting parameter;

the second linear relationship has the relationship:

a1, a2 are the first coefficient and the second coefficient, b1, b2 are the first adjustment parameter and the second adjustment parameter, a is the reference coefficient, b is the reference parameter.

The first adjusting parameter is a first charging time, a first data voltage or a first duty ratio of the current panel to be adjusted at the first position, the second adjusting parameter is a second charging time, a second data voltage or a second duty ratio of the current panel to be adjusted at the second position, and the reference parameter is a reference charging time, a reference data voltage or a reference duty ratio of the current panel to be adjusted at the reference position.

The first coefficient is first position information or a first resistance value of the panel to be adjusted at the first position, and the second coefficient is second position information or a second resistance value of the panel to be adjusted at the second position; the reference coefficient is reference position information or a reference resistance value of the panel to be adjusted at the reference position.

In this embodiment, the calculation module 20 may be configured to obtain a reference parameter of the panel to be adjusted at the reference position; acquiring a first historical brightness value, a first historical adjustment parameter, a second historical brightness value and a second historical adjustment parameter of the panel to be adjusted at the first position in a preset historical adjustment period; or acquiring a third history brightness value, a third history adjusting parameter, a fourth history brightness value and a fourth history adjusting parameter of the panel to be adjusted at the second position in a preset history adjusting period; determining the incidence relation between the reference brightness value and the reference parameter according to the first historical brightness value, the first historical adjusting parameter, the second historical brightness value and the second historical adjusting parameter; or determining the incidence relation between the reference brightness value and the reference parameter according to the third history brightness value, the third history adjusting parameter, the fourth history brightness value and the fourth history adjusting parameter; and determining the reference brightness value based on the reference parameter according to the incidence relation between the reference brightness value and the reference parameter.

The determining module 30 is configured to determine whether a difference between the reference brightness value and the first brightness value or the second brightness value is greater than a first threshold.

The adjusting module 40 is configured to determine a target brightness value of the panel to be adjusted according to the first threshold, the reference brightness value, the first brightness value, and the second brightness value if a difference between the reference brightness value and the first brightness value or the second brightness value is greater than the first threshold, and adjust the first brightness value at the first position and/or the second brightness value at the second position based on the target brightness value.

In this embodiment, the adjusting module 40 is configured to obtain a reference parameter of the panel to be adjusted at the reference position; acquiring a first historical brightness value, a first historical adjustment parameter, a second historical brightness value and a second historical adjustment parameter of the panel to be adjusted at the first position in a preset historical adjustment period; or acquiring a third history brightness value, a third history adjusting parameter, a fourth history brightness value and a fourth history adjusting parameter of the panel to be adjusted at the second position in a preset history adjusting period; determining the incidence relation between the reference brightness value and the reference parameter according to the first historical brightness value, the first historical adjusting parameter, the second historical brightness value and the second historical adjusting parameter; or determining the incidence relation between the reference brightness value and the reference parameter according to the third history brightness value, the third history adjusting parameter, the fourth history brightness value and the fourth history adjusting parameter; and determining the reference brightness value based on the reference parameter according to the incidence relation between the reference brightness value and the reference parameter.

In this embodiment, the working principle of the display panel brightness adjusting apparatus 100 may refer to the compensation method of the display panel, and is not described herein again.

The display panel brightness adjusting device determines a reference brightness value according to a first brightness value and a second brightness value of a panel to be adjusted, and obtains a target brightness value of the panel to be adjusted according to a first threshold value, the reference brightness value, the first brightness value and the second brightness value, so that the display brightness of different positions of the panel to be adjusted is uniform, and the display quality of the panel to be adjusted is improved.

The application provides a method and a device for adjusting brightness of a display panel. The display panel brightness adjusting method comprises the following steps: acquiring a first brightness value and a second brightness value of a panel to be adjusted; determining a reference brightness value of a panel to be adjusted; judging whether the difference value between the reference brightness value and the first brightness value or the second brightness value is larger than a first threshold value; if the difference value between the reference brightness value and the first brightness value or the second brightness value is larger than a first threshold value, determining a target brightness value according to the first threshold value, the reference brightness value, the first brightness value and the second brightness value, and adjusting the first brightness value and/or the second brightness value based on the target brightness value. According to the method and the device, the reference brightness value is determined according to the first brightness value and the second brightness value of the panel to be adjusted, and the target brightness value of the panel to be adjusted is obtained according to the first threshold value, the reference brightness value, the first brightness value and the second brightness value, so that the display brightness of different positions of the panel to be adjusted is uniform, and the display quality of the panel to be adjusted is improved.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The foregoing describes in detail a method and an apparatus for adjusting brightness of a display panel provided in an embodiment of the present application, and a specific example is applied in the description to explain the principle and the implementation of the present application, and the description of the foregoing embodiment is only used to help understand the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims (10)

1. A method for adjusting the brightness of a display panel is characterized by comprising the following steps:

acquiring a first brightness value of a panel to be regulated at a first position, a second brightness value of the panel to be regulated at a second position and reference position information or reference parameters at a reference position;

determining the incidence relation between the reference brightness value of the panel to be adjusted at the reference position and the reference position information or the reference parameter according to the first brightness value and/or the second brightness value;

determining the reference brightness value based on the reference position information according to the association relationship between the reference brightness value and the reference position information, or determining the reference brightness value based on the reference parameter according to the association relationship between the reference brightness value and the reference parameter;

judging whether the difference value between the reference brightness value and the first brightness value or the second brightness value is larger than a first threshold value;

if the difference between the reference brightness value and the first brightness value or the second brightness value is greater than the first threshold, determining a target brightness value of the panel to be adjusted according to the first threshold, the reference brightness value, the first brightness value and the second brightness value, and adjusting the first brightness value at the first position and/or the second brightness value at the second position based on the target brightness value.

2. The method according to claim 1, wherein the step of obtaining a first brightness value of the panel to be adjusted at a first position and a second brightness value of the panel to be adjusted at a second position comprises:

acquiring a first adjusting parameter of the panel to be adjusted at the first position and a second adjusting parameter of the panel to be adjusted at the second position;

acquiring a first historical brightness value, a first historical adjustment parameter, a second historical brightness value and a second historical adjustment parameter of the panel to be adjusted at the first position in a preset historical adjustment period, and acquiring a third historical brightness value, a third historical adjustment parameter, a fourth historical brightness value and a fourth historical adjustment parameter of the panel to be adjusted at the second position in the preset historical adjustment period;

determining an association relationship between the first brightness value and the first adjustment parameter according to the first historical brightness value, the first historical adjustment parameter, the second historical brightness value and the second historical adjustment parameter, and determining an association relationship between the second brightness value and the second adjustment parameter according to the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter;

and determining the first brightness value based on the first adjusting parameter according to the association relation between the first brightness value and the first adjusting parameter, and determining the second brightness value based on the second adjusting parameter according to the association relation between the second brightness value and the second adjusting parameter.

3. The method according to claim 1, wherein the step of determining a reference brightness value of the panel to be adjusted at a reference position according to the first brightness value and/or the second brightness value comprises:

acquiring first position information of the panel to be adjusted at the first position and second position information of the panel to be adjusted at the second position;

determining an association relationship between the reference brightness value and the reference position information according to the first position information, the second position information, the first brightness value and the second brightness value;

and determining the reference brightness value based on the reference position information according to the incidence relation between the reference brightness value and the reference position information.

4. The method according to claim 3, wherein the step of determining the association relationship between the reference luminance value and the reference position information according to the first position information, the second position information, the first luminance value, and the second luminance value comprises:

acquiring a first linear relation between the reference brightness value and the reference position information according to the first position information, the first brightness value, the second position information and the second brightness value;

the relationship of the first linear relationship is:

wherein x1 and x2 are the first position information and the second position information, y1 and y2 are the first brightness value and the second brightness value, x is the reference position information, and y is the reference brightness value.

5. The method according to claim 1, wherein the step of determining a reference brightness value of the panel to be adjusted at a reference position according to the first brightness value and/or the second brightness value comprises:

acquiring a first adjusting parameter of the panel to be adjusted at the first position and a second adjusting parameter of the panel to be adjusted at the second position;

determining the association relation between the reference brightness value and the reference parameter according to the first adjusting parameter, the second adjusting parameter, the first brightness value and the second brightness value;

and determining the reference brightness value based on the reference parameter according to the incidence relation between the reference brightness value and the reference parameter.

6. The method for adjusting brightness of a display panel according to claim 5, wherein the step of obtaining the reference parameter of the panel to be adjusted at the reference position comprises:

acquiring a reference coefficient of the panel to be regulated at the reference position, a first coefficient of the panel to be regulated at the first position and a second coefficient of the panel to be regulated at the second position;

determining the incidence relation between the reference parameter and the reference coefficient according to the first coefficient, the second coefficient, the first adjusting parameter and the second adjusting parameter;

and determining the reference parameter based on the reference coefficient according to the incidence relation between the reference parameter and the reference coefficient.

7. The method according to claim 6, wherein the step of determining the association relationship between the reference parameter and the reference coefficient according to the first coefficient, the second coefficient, the first adjustment parameter, and the second adjustment parameter comprises:

acquiring a second linear relation between the reference parameter and the reference coefficient according to the first coefficient, the second coefficient, the first adjusting parameter and the second adjusting parameter;

the second linear relationship has the relationship:

a1, a2 are the first coefficient, the second coefficient, b1, b2 are the first adjustment parameter and the second adjustment parameter, a is the reference coefficient, b is the reference parameter;

the first adjusting parameter is a first charging time, a first data voltage or a first duty ratio of the current panel to be adjusted at the first position, the second adjusting parameter is a second charging time, a second data voltage or a second duty ratio of the current panel to be adjusted at the second position, and the reference parameter is a reference charging time, a reference data voltage or a reference duty ratio of the current panel to be adjusted at the reference position;

the first coefficient is first position information or a first resistance value of the panel to be adjusted at the first position, and the second coefficient is second position information or a second resistance value of the panel to be adjusted at the second position; the reference coefficient is reference position information or a reference resistance value of the panel to be adjusted at the reference position.

8. The method according to claim 1, wherein the step of determining a reference brightness value of the panel to be adjusted at a reference position according to the first brightness value and/or the second brightness value comprises:

acquiring a first historical brightness value, a first historical adjustment parameter, a second historical brightness value and a second historical adjustment parameter of the panel to be adjusted at the first position in a preset historical adjustment period; or acquiring a third history brightness value, a third history adjusting parameter, a fourth history brightness value and a fourth history adjusting parameter of the panel to be adjusted at the second position in a preset history adjusting period;

determining the incidence relation between the reference brightness value and the reference parameter according to the first historical brightness value, the first historical adjusting parameter, the second historical brightness value and the second historical adjusting parameter; or determining the incidence relation between the reference brightness value and the reference parameter according to the third history brightness value, the third history adjusting parameter, the fourth history brightness value and the fourth history adjusting parameter;

and determining the reference brightness value based on the reference parameter according to the incidence relation between the reference brightness value and the reference parameter.

9. The method according to any one of claims 1 to 8, wherein the step of determining a target brightness value of the panel to be adjusted according to the first threshold, the reference brightness value, the first brightness value, and the second brightness value comprises:

determining a first reference luminance value that makes the first difference smaller than or equal to the first threshold value, based on a first difference between the reference luminance value and the first luminance value;

determining a second reference luminance value that makes a second difference value of the reference luminance value and the second luminance value smaller than or equal to the first threshold value, based on the second difference value;

and determining a target brightness value of the panel to be adjusted in the next adjusting period according to the first reference brightness value and the second reference brightness value.

10. The display panel brightness adjusting device is characterized by comprising an acquisition module, a calculation module, a judgment module and an adjusting module;

the acquisition module is used for acquiring a first brightness value of the panel to be adjusted at a first position, a second brightness value of the panel to be adjusted at a second position and reference position information or reference parameters at a reference position;

the calculation module is used for determining the association relationship between a reference brightness value of the panel to be adjusted at a reference position and the reference position information or the reference parameter according to the first brightness value and/or the second brightness value, determining the reference brightness value based on the reference position information according to the association relationship between the reference brightness value and the reference position information, or determining the reference brightness value based on the reference parameter according to the association relationship between the reference brightness value and the reference parameter;

the judging module is used for judging whether the difference value between the reference brightness value and the first brightness value or the second brightness value is larger than a first threshold value;

the adjusting module is configured to determine a target brightness value of the panel to be adjusted according to the first threshold, the reference brightness value, the first brightness value, and the second brightness value if a difference between the reference brightness value and the first brightness value or the second brightness value is greater than the first threshold, and adjust the first brightness value at the first position and/or the second brightness value at the second position based on the target brightness value.

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