WO2022077764A1

WO2022077764A1 - Display panel brightness adjustment method and apparatus

Info

Publication number: WO2022077764A1
Application number: PCT/CN2020/138856
Authority: WO
Inventors: 刘金风; 徐枫程
Original assignee: Tcl华星光电技术有限公司
Priority date: 2020-10-16
Filing date: 2020-12-24
Publication date: 2022-04-21
Also published as: CN112185296B; CN112185296A

Abstract

A display panel brightness adjustment method and apparatus. The method comprises: obtaining a first brightness value and a second brightness value of a panel to be adjusted to determine a reference brightness value; determining whether a difference between the reference brightness value and the first brightness value or the second brightness value is greater than a first threshold; and if yes, determining a target brightness value according to the first threshold, 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 on the basis of the target brightness value.

Description

Display panel brightness adjustment method and device

technical field

The present application relates to the field of display, and in particular, to a method and device for adjusting the brightness of a display panel.

Background technique

With the improvement of people's product requirements for the display panel, in order to meet the market demand, the display device is gradually developed in the direction of large size.

In the existing display panel, with the increase of the display device, the size of the display panel increases accordingly, and the extension of the data line makes the difference in resistance and coupling capacitance at different positions of the data line in the display panel obvious, and the difference is far away. Under the condition of the same charging time, the sub-pixels corresponding to the scanning lines can reach different voltages, which causes uneven display of the display panel and affects the display quality of the display panel.

Therefore, there is an urgent need for a method and apparatus for adjusting the brightness of a display panel to solve the above technical problems.

technical problem

The present application provides a method and device for adjusting the brightness of a display panel, which are used to solve the problem of uneven display brightness of the existing display panel.

technical solutions

The present application provides a method for adjusting the brightness of a display panel, including:

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

determining whether the difference between the reference luminance value and the first luminance value or the second luminance value is greater than a first threshold;

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

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

Obtain the first adjustment parameter of the panel to be adjusted at the first position and the second adjustment parameter of the panel to be adjusted at the second position;

Acquire the first historical brightness value, the first historical adjustment parameter, the second historical brightness value and the second historical adjustment parameter of the panel to be adjusted at the first position in the predetermined historical adjustment period, and acquire all the historical adjustment parameters in the predetermined historical adjustment period. the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter of the panel to be adjusted at the second position;

Determine the 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 according to the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter, determine the difference between the second brightness value and the second adjustment parameter connection relation;

According to the relationship between the first brightness value and the first adjustment parameter, the first brightness value is determined based on the first adjustment parameter, and the second brightness value is determined according to the relationship between the second brightness value and the second adjustment parameter. An association relationship, and the second brightness value is determined based on the second adjustment parameter.

In the display panel brightness adjustment method provided by the present application, the step of determining the reference brightness value of the panel to be adjusted at the 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;

According to the first position information, the second position information, the first brightness value and the second brightness value, determine the association relationship between the reference brightness value and the reference position information;

According to the association relationship between the reference luminance value and the reference position information, the reference luminance value is determined based on the reference position information.

In the display panel brightness adjustment method provided by the present application, after the scan lines of the panel to be adjusted are grouped in the first direction, the reference position information, the first position information, and the second position information are the Grouping information of scan lines corresponding to the reference position, the first position, and the second position of the panel to be adjusted;

The first direction is parallel to the extending direction of the data lines of the panel to be adjusted.

In the display panel brightness adjustment method provided by the present application, the acquiring reference position information of the panel to be adjusted at the reference position, the first position information of the panel to be adjusted at the first position, and the to-be-adjusted panel are obtained. The step of obtaining the second position information of the panel at the second position includes:

The scan lines are sequentially and equally grouped along the first direction, and the number of the scan lines in each group is greater than or equal to 1;

Determine the grouping information of any one of the scan lines according to the number of the scan lines in each group and the bar count of any one of the scan lines in the first direction;

According to the grouping information of any one of the scan lines, the reference bar count of the scan line corresponding to the reference position, the first bar count of the scan line corresponding to the first position, and the second position corresponding to the The second count of the scan lines determines the reference position information, the first position information and the second position information.

In the display panel brightness adjustment method provided by the present application, the reference brightness value and the reference brightness value are determined according to the first position information, the second position information, the first brightness value and the second brightness value. The steps of describing the association relationship of the reference location information include:

obtaining a first linear relationship between the reference luminance value and the reference position information according to the first position information, the first luminance value, the second position information, and the second luminance value;

The relational expression 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 luminance value.

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

determining the correlation between the reference brightness value and the reference parameter according to the first adjustment parameter, the second adjustment parameter, the first brightness value and the second brightness value;

According to the association relationship between the reference luminance value and the reference parameter, the reference luminance value is determined based on the reference parameter.

In the display panel brightness adjustment method provided by the present application, the reference parameter and the reference coefficient are determined according to the first coefficient, the second coefficient, the first adjustment parameter and the second adjustment parameter The steps of the association relationship include:

obtaining a second linear 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;

The relational expression of the second linear relationship is:

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

Wherein, the first adjustment parameter is the current first charging time, the first data voltage or the first duty cycle of the panel to be adjusted at the first position, and the second adjustment parameter is the current to-be-adjusted panel the second charging time, the second data voltage or the second duty cycle of the panel at the second position, and the reference parameter is the current reference charging time, reference data voltage or reference of the panel to be adjusted at the reference position duty cycle;

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

obtaining the reference parameters of the panel to be adjusted at the reference position;

Obtain the first historical brightness value, the first historical adjustment parameter, the second historical brightness value, and the second historical adjustment parameter of the panel to be adjusted at the first position within the predetermined historical adjustment period; or, obtain the predetermined historical adjustment period the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter of the panel to be adjusted at the second position;

Determine the correlation 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, according to the third history The brightness value, the third historical adjustment parameter, the fourth historical brightness value, and the fourth historical adjustment parameter, to determine the correlation between the reference brightness value and the reference parameter;

In the display panel brightness adjustment method provided by the present application, the target brightness value of the panel to be adjusted is determined according to the first threshold value, the reference brightness value, the first brightness value and the second brightness value steps, including:

According to a first difference between the reference luminance value and the first luminance value, determine a first reference luminance value that makes the first difference less than or equal to the first threshold;

determining, according to a second difference between the reference luminance value and the second luminance value, a second reference luminance value that makes the second difference less than or equal to the first threshold;

According to the first reference brightness value and the second reference brightness value, a target brightness value of the panel to be adjusted in the next adjustment cycle is determined.

In the display panel brightness adjustment method provided by the present application, the first difference between the reference brightness value and the first brightness value is determined to make the first difference less than or equal to the first threshold. A step of referencing luminance values, comprising:

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

According to the correlation between the first difference and the reference parameter, adjust the reference parameter until the first difference is less than or equal to the first threshold, and obtain the current reference parameter as the first reference parameter;

According to the association relationship between the reference luminance value and the reference parameter, and based on the first reference parameter, the first reference luminance value is acquired.

The present application also provides a device for adjusting the brightness of a display panel, including an acquisition module, a calculation module, a determination module and an adjustment module;

The obtaining module is used to obtain the first brightness value of the panel to be adjusted at the first position and the second brightness value at the second position;

The calculation module 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;

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

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

In the display panel brightness adjustment device provided by the present application, the acquisition module is configured to acquire a first adjustment parameter of the panel to be adjusted at the first position and a second adjustment of the panel to be adjusted at the second position parameter;

In the display panel brightness adjustment device provided by the present application, the calculation module is configured to acquire 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;

According to the first position information, the second position information, the first brightness value and the second brightness value, determine the correlation between the reference brightness value and the reference position information; according to the reference brightness The relationship between the value and the reference position information, and the reference luminance value is determined based on the reference position information.

In the display panel brightness adjustment device provided by the present application, the calculation module is configured to obtain the reference according to the first position information, the first brightness value, the second position information and the second brightness value a first linear relationship between the luminance value and the reference position information;

The relational expression of the first linear relationship is:

In the display panel brightness adjustment device provided by the present application, the calculation module is configured to obtain the reference parameter of the panel to be adjusted at the reference position, the first adjustment parameter of the panel to be adjusted at the first position, and the to-be-adjusted panel at the first position. adjusting the second adjustment parameter of the panel in the second position;

According to the first adjustment parameter, the second adjustment parameter, the first brightness value and the second brightness value, determine the correlation between the reference brightness value and the reference parameter; according to the reference brightness value The reference luminance value is determined based on the association relationship with the reference parameter based on the reference parameter.

In the display panel brightness adjustment device provided by the present application, the calculation module is configured to obtain the reference coefficient of the panel to be adjusted at the reference position, the first coefficient of the panel to be adjusted at the first position, and the the second coefficient of the panel to be adjusted at the second position;

determining the 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;

According to the association relationship between the reference parameter and the reference coefficient, the reference parameter is determined based on the reference coefficient.

In the display panel brightness adjustment device provided by the present application, the calculation module is configured to obtain the reference parameter and the second adjustment parameter according to the first coefficient, the second coefficient, the first adjustment parameter and the second adjustment parameter. a second linear relationship of the reference coefficients;

The relational expression of the second linear relationship is:

In the display panel brightness adjustment device provided by the present application, the calculation module is configured to obtain reference parameters of the panel to be adjusted at the reference position;

beneficial effect

The present application determines the reference brightness value according to the first brightness value and the second brightness value of the panel to be adjusted, and obtains the 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 , 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 of drawings

The technical solutions and other beneficial effects of the present application will be apparent through the detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings.

FIG. 1 is a schematic diagram of a method for adjusting the brightness of a display panel of the present application.

FIG. 2 is a schematic structural diagram of a display panel brightness adjustment device of the present application.

Embodiments of the present application

The present application provides a method and device for adjusting the brightness of a display panel. In order to make the purpose, technical solutions and effects of the present application clearer and clearer, the present application will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

In the existing display panel, sub-pixels corresponding to different scan lines far apart reach different voltages under the same charging time, resulting in uneven display brightness of the display panel, and the display quality of the display panel is affected. Based on this, the present application proposes a method and device for adjusting the brightness of a display panel.

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

S100. Acquire a first brightness value of the panel to be adjusted at a first position and a second brightness value at a second position of the panel to be adjusted.

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 can be obtained directly through measurement.

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

S110. Acquire 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.

In this embodiment, the first position and the second position may be any positions within the display area of the panel to be adjusted. For example, the panel to be adjusted further includes a binding located on one side of the display area. The data signal is transmitted to the display area through the binding area, the first position can be located on the side of the display area close to the binding area, and the second position can be located in the display area inside the side away from the binding region.

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

S120: Acquire 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 within a predetermined historical adjustment period, and acquire a predetermined historical adjustment period The third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter of the panel to be adjusted in the second position.

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 the same as the The second adjustment parameter remains the same. For example: when the first adjustment parameter is the current first charging time of the panel to be adjusted at the first position, the first historical adjustment parameter and the second historical adjustment parameter are a predetermined historical adjustment period The first historical charging time and the second historical charging time of the panel to be adjusted in the second position; when the second adjustment parameter is the current second charging time of the panel to be adjusted in the second position , the third historical adjustment parameter and the fourth historical adjustment parameter are the third historical charging time and the second historical charging time of the panel to be adjusted at the second position within a predetermined historical adjustment period.

S130. Determine the difference 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 correlation, and determine the second brightness value and the second adjustment according to the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter The relationship of parameters.

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

S140. According to the correlation between the first brightness value and the first adjustment parameter, determine the first brightness value based on the first adjustment parameter, and according to the second brightness value and the second adjustment The association relationship of the parameters determines the second brightness value based on the second adjustment parameter.

In this embodiment, the adjustment parameter of the brightness value of the panel to be adjusted at the first position 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 is determined according to the correlation curve and the first adjustment parameter. Similarly, the relationship between the brightness value of the panel to be adjusted at the first position and the adjustment parameter can be obtained according to the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter curve, and the second brightness value is determined according to the correlation curve and the second adjustment parameter.

According to the association relationship between the first brightness value and the first adjustment parameter, based on the first adjustment parameter, and according to the association between the second brightness value and the second adjustment parameter, based on the first adjustment parameter The first brightness value and the second brightness value in the current adjustment period are obtained by means of two adjustment parameters, which avoids the measurement of the first brightness value and the second brightness value during each adjustment, which is beneficial to Accelerates the adjustment of the panel to be adjusted.

S200. 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, step S200 may include:

S211: Acquire 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 of the panel to be adjusted at the second position information.

In this embodiment, the reference position information, the first position information, and the second position information of the panel to be adjusted may be that the reference position, the first position, and the second position are in the first position. The distance in one direction from a certain fixed point on the panel to be adjusted; it can also be the distance between the reference position, the first position, and the second position in the first direction and a certain fixed scan line The distance or the number of intervals; or, the reference position, the first position, and the second position after the panel to be adjusted is grouped by the number of scanning lines in the first direction, the reference position, the second position The number of groups of the scan lines corresponding to the first position and the second position. Wherein, 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 that the reference position, the first position, and the second position are in the first position. The distance from a certain fixed point on the panel to be adjusted in two directions; it can also be the distance between the reference position, the first position, and the second position in the second direction and a certain fixed data line distance or the number of intervals; or, the reference position, the first position, and the second position after the panel to be adjusted is grouped by the number of data lines in the second direction, the reference position, the The number of groups of the data lines corresponding to the first position and the second position. Wherein, the second direction is a direction parallel to the extending direction of the scan 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 that the reference position, the first position, and the second position are in the first position. The distance from a certain fixed point on the panel to be adjusted in one direction and the distance from the reference position, the first position, and the second position to a certain fixed point on the panel to be adjusted in the second direction The coordinates formed by the distance; it can also be the distance or the number of intervals between the reference position, the first position, the second position and a certain fixed scan line in the first direction, and the reference position, the The coordinates formed by the distance or the number of intervals between the first position and the second position in the second direction and a certain fixed data line; or, the reference position, the first position, the first position The reference position, the first position, the group number of the scanning lines corresponding to the second position, and the reference position after the two positions of the panel to be adjusted are grouped by the number of scan lines in the first direction , the reference position, the first position, and the second position corresponding to the reference position, the first position, and the second position after the panel to be adjusted is grouped by the number of data lines in the second direction The coordinates formed by the number of groups of data lines.

In this embodiment, when the reference position information, the first position information and the second position information of the panel to be adjusted are that the reference position, the first position and the second position are When adjusting the number of groups after the panels are grouped according to the number of scan lines in the first direction, step S211 may include:

S211a, the scan lines are sequentially and equally grouped along the first direction, and the number of the scan lines in each group is greater than or equal to one.

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

S211b: Determine the grouping information of any one of the scan lines according to the number of the scan lines in each group and the bar count of any one of the scan lines in the first direction.

For example, if there are 100 scan lines in total, and the number of the scan lines in each group is 10, the scan lines are divided into ten groups in total. If the initial group count is 1, that is, the group count of the first scan line to the tenth scan line is 1. At this time, the group count of the 83rd scan line, that is, the group information is 9.

S211c. According to the grouping information of any one of the scan lines, the reference bar count of the scan line corresponding to the reference position, the first bar count of the scan line corresponding to the first position, and the second position The second count of the corresponding scan line determines the reference position information, the first position information and the second position information.

In this embodiment, when the reference position information, the first position information and the second position information of the panel to be adjusted are that the reference position, the first position and the second position are When adjusting the number of groups after the panels are grouped according to 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 manner similar to steps S211a to S211c, The only difference is that in this embodiment, the data lines are grouped in the second direction, which is not repeated here.

In this embodiment, when the reference position information, the first position information and the second position information of the panel to be adjusted are that the reference position, the first position and the second position are The number of groups after the adjustment panel is grouped according to the number of scan lines in the first direction, and the reference position, the first position, and the second position are grouped according to the number of data lines on the panel to be adjusted in the second direction In the case of the coordinates formed by the number of groups after grouping, the acquisition methods of the reference position information, the first position information and the second position information are also similar to steps S211a to S211c, except that in this embodiment, The scan lines are grouped in the first direction, and the data lines are also grouped in the second direction, and the reference position information may use coordinates (c3, d3), the first One position information may be represented by coordinates (c1, d1), and the second position information may be represented by coordinates (c2, d2), wherein c and d represent the reference position, the first position or the second position The corresponding group number of the scan lines in the first direction, and the group number 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. The panel to be adjusted is divided into blocks, which realizes the block brightness adjustment of the panel to be adjusted, which is beneficial to speed up the adjustment of the brightness of the panel to be adjusted.

S212. Determine an 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.

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

The relational expression of the first linear relationship is:

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 the first position and the second position, the panel to be adjusted is grouped by the number of scanning lines in the first direction. When the first position and the second position are the coordinates formed by the number of groups after the panel to be adjusted is grouped according to the number of data lines in the second direction, the coordinates of the first position information (c1, d1 ) and the coordinates (c2, d2) of the second position information, when c1 and c2 are the same, but d1 and d2 are different, then select d1 and d2 to substitute in the first linear relationship, c1 and c2 are different, and d1 and d2 are different. At the same time, c1 and c2 are selected and substituted into the first linear relationship. When c1 and c2 are different, and d1 and d2 are different, c1 and c2 or d1 and d2 are arbitrarily selected and substituted into the first linear relationship.

S213. Determine the reference luminance value based on the reference position information according to the association between the reference luminance value and the reference position information.

In this embodiment, the reference luminance value and the reference position information are obtained according to the first position information, the first luminance value, the second position information, and the second luminance value in step S212. The reference brightness value can be obtained by substituting the reference position information into the association relationship.

In this embodiment, step S200 may further include:

S221. Obtain reference parameters of the panel to be adjusted at the reference position, first adjustment parameters of the panel to be adjusted at the first position, and second adjustment parameters of the panel to be adjusted at the second position .

In this embodiment, the reference parameter may be the current reference charging time, reference data voltage or reference duty cycle of the panel to be adjusted at the reference position, and the difference between the first adjustment parameter and the second adjustment parameter may be The meanings have already been explained in step S110, and are not repeated here.

In this embodiment, the acquisition method of the reference parameter may include:

S221a: 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.

S221b. Determine 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.

In this embodiment, the step of determining the 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:

A second linear relationship between the reference parameter and the reference coefficient is obtained according to the first coefficient, the second coefficient, the first adjustment parameter, and the second adjustment parameter.

The relational expression of the second linear relationship is:

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

Wherein, the first adjustment parameter is the current first charging time, the first data voltage or the first duty cycle of the panel to be adjusted at the first position, and the second adjustment parameter is the current to-be-adjusted panel the second charging time, the second data voltage or the second duty cycle of the panel at the second position, and the reference parameter is the current reference charging time, reference data voltage or reference of the panel to be adjusted at the reference position duty cycle.

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 here.

Similarly, when the first position information and the second position information are the first position, the group number of the second position after the panel to be adjusted is grouped by the number of scanning lines in the first direction, and the When the first position and the second position are the coordinates formed by the number of groups of the panel to be adjusted in the second direction grouped by the number of data lines, the coordinates (c1, d1) of the first position information and the In the coordinates (c2, d2) of the second position information, when c1 and c2 are the same, but d1 and d2 are different, then d1 and d2 are selected and substituted into the second linear relationship. When c1 and c2 are different, and d1 and d2 are the same, then C1 and c2 are selected and substituted into the second linear relationship. When c1 and c2 are different, and d1 and d2 are different, c1 and c2 or d1 and d2 are arbitrarily selected and substituted into the second linear relationship.

In this embodiment, there is also a correlation between the first charging time, the first data voltage, and the first duty cycle. Through the correlation between the three, the data of one of them can be obtained by Thereby obtaining the data of the other two. The second charging time, the second data voltage and the second duty cycle are the same as the reference charging time, the reference data voltage and the reference duty cycle.

S221c, according to the association relationship between the reference parameter and the reference coefficient, and based on the reference coefficient, determine the reference parameter.

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, according to the second linear relationship, the reference position information can be used to obtain the reference position information. The reference coefficient is the reference charging time.

In this embodiment, the first adjustment parameter and the second adjustment parameter may be obtained by direct measurement, for example, by directly measuring the first charging time, the first charging time, the second A data voltage or first duty cycle, and the second charging time, second data voltage or second duty cycle of the panel under test at the second position.

S222. Determine the correlation between the reference brightness value and the reference parameter according to the first adjustment parameter, the second adjustment parameter, the first brightness value, and the second brightness value.

S223. According to the association relationship between the reference luminance value and the reference parameter, and based on the reference parameter, determine the reference luminance value.

In this embodiment, step S200 may further include:

S231. Obtain reference parameters of the panel to be adjusted at the reference position.

S232: Acquire the first historical brightness value, the first historical adjustment parameter, the second historical brightness value, and the second historical adjustment parameter of the panel to be adjusted at the first position within a predetermined historical adjustment period; or, acquire a predetermined historical adjustment The third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value, and the fourth historical adjustment parameter of the panel to be adjusted at the second position in the 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 repeated here. .

S233. Determine the correlation 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, according to the first historical brightness value Three historical brightness values, a third historical adjustment parameter, a fourth historical brightness value, and a fourth historical adjustment parameter are used to determine the correlation between the reference brightness value and the reference parameter.

S234. Determine the reference luminance value based on the reference parameter according to the correlation between the reference luminance value and the reference parameter.

S300. Determine whether the difference between the reference luminance value and the first luminance value or the second luminance value is greater than a first threshold.

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, according to the first threshold value, the reference brightness value, the first brightness value value and the second brightness value, determine the target brightness value of the panel to be adjusted, and adjust the first brightness value of the first position and/or all the second position based on the target brightness value the second 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:

According to a first difference between the reference luminance value and the first luminance value, a first reference luminance value that makes the first difference less than or equal to the first threshold is determined.

In this embodiment, according to a first difference between the reference luminance value and the first luminance value, the step of determining a first reference luminance value that makes the first difference less than or equal to the first threshold includes the following steps: :

In this embodiment, the association relationship between the reference luminance value and the reference parameter has been obtained in step S200, or in the same or similar manner as the way in which the association relationship between the reference luminance value and the reference parameter is obtained in step S200 obtained by the method, which will not be repeated here.

For example, when the reference parameter is a reference charging time, the relationship between the reference brightness value and the reference parameter may be a relationship between the reference brightness value and the reference charging time; the first difference value is the reference brightness value and the first brightness value; based on the above two points, the relationship between the first difference value and the reference time can be obtained.

According to a second difference between the reference luminance value and the second luminance value, a second reference luminance value that makes the second difference less than or equal to the first threshold is determined.

In this embodiment, according to the second difference between the reference luminance value and the second luminance value, the step of determining the second reference luminance value that makes the second difference less than or equal to the first threshold includes the following steps: :

Determine the association between the second difference value and the reference parameter according to the association between the reference luminance value and the reference parameter, the reference luminance value, and the second luminance value;

In this embodiment, the determination of the association relationship between the second difference value and the reference parameter is the same as or similar to the determination of the association relationship between the first difference value and the reference parameter, and details are not described herein again.

According to the association relationship between the second difference and the reference parameter, adjust the reference parameter until the second difference is less than or equal to the first threshold, and obtain the current reference parameter as the second reference parameter;

According to the association relationship between the reference luminance value and the reference parameter, and based on the second reference parameter, the second reference luminance value is acquired.

According to the first reference brightness value and the second reference brightness value, a target brightness value of the display panel for the next adjustment period is determined.

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

According to the first reference brightness value and the second reference brightness value, the average value of the two is obtained as the target brightness value of the panel to be adjusted in the next adjustment cycle.

According to the first brightness value, the second brightness value, the first reference brightness value and the second reference brightness value, the average value of the four is obtained as the target brightness of the panel to be adjusted in the next adjustment cycle value.

According to the first brightness value, the second brightness value, the first reference brightness value and the second reference brightness value, the average value of the two values after removing the maximum value and the minimum value among the four is selected as the Describe the target brightness value of the panel to be adjusted in the next adjustment cycle.

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, then select the second luminance value and The first reference brightness value is used as the target brightness value of the panel to be adjusted in the next adjustment cycle.

In the display panel brightness adjustment method proposed in the present application, 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 first threshold value, the reference brightness value, the first brightness value and the second brightness value are determined according to the first threshold value, the reference brightness value, the first brightness value and the second brightness value. The target brightness value of the panel to be adjusted is obtained, 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.

Referring to FIG. 2 , the present application also proposes a display panel brightness adjustment device 100 , which includes an acquisition module 10 , a calculation module 20 , a determination module 30 , and an adjustment module 40 .

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

In this embodiment, the obtaining module 10 may be configured to obtain the first adjustment parameter of the panel to be adjusted at the first position and the second adjustment parameter of the panel to be adjusted at the second position; The first historical brightness value, the first historical adjustment parameter, the second historical brightness value and the second historical adjustment parameter of the panel to be adjusted at the first position during the historical adjustment period, and the Adjust the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter of the panel at the second position; according to the first historical brightness value, the first historical adjustment parameter, The second historical brightness value and the second historical adjustment parameter, determine the relationship between the first brightness value and the first adjustment parameter, and determine the relationship between the first brightness value and the first adjustment parameter, and parameter, the fourth historical brightness value and the fourth historical adjustment parameter, determine the relationship between the second brightness value and the second adjustment parameter; according to the first brightness value and the first adjustment parameter based on the first adjustment parameter, determine the first brightness value, and according to the relationship between the second brightness value and the second adjustment parameter, determine the second adjustment parameter based on the second adjustment parameter. The second brightness value.

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 computing module 20 may be configured to acquire 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 the panel to be adjusted second position information of the panel at the second position; according to the first position information, the second position information, the first brightness value and the second brightness value, determine the reference brightness value and the The reference position information is associated with the reference position information; the reference luminance value is determined based on the reference position information according to the association relationship between the reference luminance value and the reference position information.

The calculation module 20 may be configured to obtain the difference between the reference luminance value and the reference position information according to the first position information, the first luminance value, the second position information and the second luminance value. first linear relationship;

The relational expression of the first linear relationship is:

In this embodiment, the calculation module 20 may be configured to acquire reference parameters of the panel to be adjusted at the reference position, first adjustment parameters of the panel to be adjusted at the first position, and the panel to be adjusted the second adjustment parameter at the second position; according to the first adjustment parameter, the second adjustment parameter, the first brightness value and the second brightness value, determine the reference brightness value and the The association relationship of reference parameters; according to the association relationship between the reference luminance value and the reference parameter, the reference luminance value is determined based on the reference parameter.

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

The calculation module 20 may be configured to obtain a second difference 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 linear relationship;

The relational expression of the second linear relationship is:

In this embodiment, the calculation module 20 may be configured to obtain the reference parameters of the panel to be adjusted at the reference position; obtain the first historical brightness of the panel to be adjusted at the first position within a predetermined historical adjustment period value, the first historical adjustment parameter, the second historical brightness value, and the second historical adjustment parameter; or, obtain the third historical brightness value, the third historical adjustment value of the panel to be adjusted at the second position in the predetermined historical adjustment period, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical 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, determine the reference brightness value and the The correlation of reference parameters; or, according to the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter, determine the correlation between the reference brightness value and the reference parameter; According to the association relationship between the reference luminance value and the reference parameter, the reference luminance value is determined based on the reference parameter.

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

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

In this embodiment, the adjustment module 40 is configured to obtain the reference parameters of the panel to be adjusted at the reference position; obtain the first historical brightness value of the panel to be adjusted at the first position within a predetermined historical adjustment period , the first historical adjustment parameter, the second historical brightness value, and the second historical adjustment parameter; or, obtain the third historical brightness value and the third historical adjustment parameter of the panel to be adjusted at the second position within a predetermined historical adjustment period , the fourth historical brightness value and the fourth historical 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, determine the reference brightness value and the reference or, according to the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter, determine the correlation between the reference brightness value and the reference parameter; according to The reference luminance value is associated with the reference parameter, and the reference luminance value is determined based on the reference parameter.

In this embodiment, for the related working principle of the display panel brightness adjustment apparatus 100, reference may be made to the compensation method of the display panel described above, which will not be repeated here.

The display panel brightness adjustment device proposed in the present application determines the reference brightness value according to the first brightness value and the second brightness value of the panel to be adjusted, and determines the reference brightness value according to the first threshold value, the reference brightness value, the first brightness value and the second brightness value. The target brightness value of the panel to be adjusted is obtained, 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 present application provides a method and device for adjusting the brightness of a display panel. The method for adjusting the brightness of a display panel includes: acquiring a first brightness value and a second brightness value of the panel to be adjusted; determining a reference brightness value of the panel to be adjusted; judging whether the difference between the reference brightness value and the first brightness value or the second brightness value is not greater than the first threshold; if the difference between the reference brightness value and the first brightness value or the second brightness value is greater than the first threshold, determine the target brightness value according to the first threshold, the reference brightness value, the first brightness value and the second brightness value , and adjust the first brightness value and/or the second brightness value based on the target brightness value. The present application determines the reference brightness value according to the first brightness value and the second brightness value of the panel to be adjusted, and obtains the 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 , 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.

It can be understood that, for those of ordinary skill in the art, equivalent replacements or changes can be made according to the technical solutions and application concepts of the present application, and all these changes or replacements should belong to the protection scope of the appended claims of the present application.

Claims

A method for adjusting the brightness of a display panel, comprising:

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

determining whether the difference between the reference luminance value and the first luminance value or the second luminance value is greater than a first threshold;

If the difference between the reference luminance value and the first luminance value or the second luminance value is greater than the first threshold value, according to the first threshold value, the reference luminance value, the first luminance value and the the second brightness value, determining the target brightness value of the panel to be adjusted, and adjusting the first brightness value of the first position and/or the first brightness value of the second position based on the target brightness value Two brightness values.
The method for adjusting the brightness of a display panel according to claim 1, wherein the step of acquiring the first brightness value of the panel to be adjusted at the first position and the second brightness value at the second position comprises:

acquiring 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;

Acquire the first historical brightness value, the first historical adjustment parameter, the second historical brightness value, and the second historical adjustment parameter of the panel to be adjusted at the first position in the predetermined historical adjustment period, and acquire all the values in the predetermined historical adjustment period. the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter of the panel to be adjusted at the second position;

Determine the 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 according to the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter, determine the difference between the second brightness value and the second adjustment parameter connection relation;

According to the relationship between the first brightness value and the first adjustment parameter, the first brightness value is determined based on the first adjustment parameter, and the second brightness value is determined according to the relationship between the second brightness value and the second adjustment parameter. An association relationship, and the second brightness value is determined based on the second adjustment parameter.
The method for adjusting the brightness of a display panel 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 ,include:

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;

According to the first position information, the second position information, the first brightness value and the second brightness value, determine the association relationship between the reference brightness value and the reference position information;

According to the association relationship between the reference luminance value and the reference position information, the reference luminance value is determined based on the reference position information.
The method for adjusting the brightness of a display panel according to claim 3, wherein after the scan lines of the panel to be adjusted are grouped in a first direction, the reference position information, the first position information, the second position The information is grouping information of scan lines corresponding to the reference position, the first position, and the second position of the panel to be adjusted;

The first direction is parallel to the extending direction of the data lines of the panel to be adjusted.
The method for adjusting the brightness of a display panel according to claim 4, wherein the acquiring reference position information of the panel to be adjusted at the reference position, the first position information of the panel to be adjusted at the first position, and The step of adjusting the second position information of the panel to be adjusted at the second position includes:

The scan lines are sequentially and equally grouped along the first direction, and the number of the scan lines in each group is greater than or equal to 1;

Determine the grouping information of any one of the scan lines according to the number of the scan lines in each group and the bar count of any one of the scan lines in the first direction;

According to the grouping information of any one of the scan lines, the reference bar count of the scan line corresponding to the reference position, the first bar count of the scan line corresponding to the first position, and the second position corresponding to the The second count of the scan lines determines the reference position information, the first position information and the second position information.
The method for adjusting the brightness of a display panel according to claim 3, wherein the reference is determined according to the first position information, the second position information, the first brightness value and the second brightness value The step of associating the luminance value with the reference position information includes:

According to the first position information, the first brightness value, the second position information, and the second brightness value, obtain the first linear relationship between the reference brightness value and the reference position information;

The relational expression 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 luminance value.
The method for adjusting the brightness of a display panel 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 ,include:

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

determining the correlation between the reference brightness value and the reference parameter according to the first adjustment parameter, the second adjustment parameter, the first brightness value and the second brightness value;

According to the association relationship between the reference luminance value and the reference parameter, the reference luminance value is determined based on the reference parameter.
The method for adjusting the brightness of a display panel according to claim 7, wherein the step of acquiring the reference parameter of the panel to be adjusted at the reference position comprises:

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;

determining the 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;

According to the association relationship between the reference parameter and the reference coefficient, the reference parameter is determined based on the reference coefficient.
The method for adjusting the brightness of a display panel according to claim 8, wherein the reference parameter and the second adjustment parameter are determined according to the first coefficient, the second coefficient, the first adjustment parameter and the second adjustment parameter. The steps of the association relationship of the reference coefficients include:

obtaining a second linear 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;

The relational expression of the second linear relationship is:

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

Wherein, the first adjustment parameter is the current first charging time, the first data voltage or the first duty cycle of the panel to be adjusted at the first position, and the second adjustment parameter is the current to-be-adjusted panel the second charging time, the second data voltage or the second duty cycle of the panel at the second position, and the reference parameter is the current reference charging time, reference data voltage or reference of the panel to be adjusted at the reference position duty cycle;

The first coefficient is the first position information or the first resistance value of the panel to be adjusted at the first position, and the second coefficient is the second position information of the panel to be adjusted at the second position or a second resistance value; the reference coefficient is the reference position information or reference resistance value of the panel to be adjusted at the reference position.
The method for adjusting the brightness of a display panel 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 ,include:

obtaining the reference parameters of the panel to be adjusted at the reference position;

Obtain the first historical brightness value, the first historical adjustment parameter, the second historical brightness value, and the second historical adjustment parameter of the panel to be adjusted at the first position within the predetermined historical adjustment period; or, obtain the predetermined historical adjustment period the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter of the panel to be adjusted at the second position;

Determine the correlation 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, according to the third history The brightness value, the third historical adjustment parameter, the fourth historical brightness value, and the fourth historical adjustment parameter, to determine the correlation between the reference brightness value and the reference parameter;

According to the association relationship between the reference luminance value and the reference parameter, the reference luminance value is determined based on the reference parameter.
The method for adjusting the brightness of a display panel according to any one of claims 1 to 10, wherein, according to the first threshold, the reference brightness value, the first brightness value and the second brightness value, The step of determining the target brightness value of the panel to be adjusted includes:

According to a first difference between the reference luminance value and the first luminance value, determine a first reference luminance value that makes the first difference less than or equal to the first threshold;

determining, according to a second difference between the reference luminance value and the second luminance value, a second reference luminance value that makes the second difference less than or equal to the first threshold;

According to the first reference brightness value and the second reference brightness value, a target brightness value of the panel to be adjusted in the next adjustment cycle is determined.
The method for adjusting the brightness of a display panel according to claim 11, wherein, according to a first difference between the reference brightness value and the first brightness value, the first difference is determined to be less than or equal to the first difference. The step of thresholding the first reference luminance value includes:

Determine the association between the first difference value and the reference parameter according to the association between the reference luminance value and the reference parameter, the reference luminance value, and the first luminance value;

According to the correlation between the first difference and the reference parameter, adjust the reference parameter until the first difference is less than or equal to the first threshold, and obtain the current reference parameter as the first reference parameter;

According to the association relationship between the reference luminance value and the reference parameter, and based on the first reference parameter, the first reference luminance value is acquired.
A display panel brightness adjustment device, comprising an acquisition module, a calculation module, a determination module and an adjustment module;

The obtaining module is used to obtain the first brightness value of the panel to be adjusted at the first position and the second brightness value at the second position;

The calculation module 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;

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

The adjustment module is configured to, if the difference between the reference brightness value and the first brightness value or the second brightness value is greater than the first threshold, according to the first threshold, the reference brightness value, the the first brightness value and the second brightness value, determine the target brightness value of the panel to be adjusted, and adjust the first brightness value and/or the first brightness value of the first position based on the target brightness value the second luminance value at two locations.
The device for adjusting the brightness of a display panel according to claim 13, wherein the acquiring module is configured to acquire the first adjustment parameter of the panel to be adjusted at the first position and the panel to be adjusted at the second position The second adjustment parameter of ;

Acquire the first historical brightness value, the first historical adjustment parameter, the second historical brightness value, and the second historical adjustment parameter of the panel to be adjusted at the first position in the predetermined historical adjustment period, and acquire all the values in the predetermined historical adjustment period. the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter of the panel to be adjusted at the second position;

Determine the 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 according to the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter, determine the difference between the second brightness value and the second adjustment parameter connection relation;

According to the relationship between the first brightness value and the first adjustment parameter, the first brightness value is determined based on the first adjustment parameter, and the second brightness value is determined according to the relationship between the second brightness value and the second adjustment parameter. An association relationship, and the second brightness value is determined based on the second adjustment parameter.
The device for adjusting the brightness of a display panel according to claim 13, wherein the calculation module is configured to acquire reference position information of the panel to be adjusted at the reference position, the first position of the panel to be adjusted at the first position position information and second position information of the panel to be adjusted at the second position;

According to the first position information, the second position information, the first brightness value and the second brightness value, determine the correlation between the reference brightness value and the reference position information; according to the reference brightness The relationship between the value and the reference position information, and the reference luminance value is determined based on the reference position information.
The device for adjusting the brightness of a display panel according to claim 15, wherein the calculation module is configured to, according to the first position information, the first brightness value, the second position information, and the second brightness value, obtaining a first linear relationship between the reference luminance value and the reference position information;

The relational expression 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 luminance value.
The device for adjusting the brightness of a display panel according to claim 13, wherein the calculation module is 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 the second adjustment parameter of the panel to be adjusted in the second position;

According to the first adjustment parameter, the second adjustment parameter, the first brightness value and the second brightness value, determine the correlation between the reference brightness value and the reference parameter; according to the reference brightness value The reference luminance value is determined based on the correlation with the reference parameter, based on the reference parameter.
The device for adjusting the brightness of a display panel according to claim 17, wherein the calculation module is configured to obtain a reference coefficient of the panel to be adjusted at the reference position, a first value of the panel to be adjusted at the first position a coefficient and a second coefficient of the panel to be adjusted in the second position;

determining the 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;

According to the association relationship between the reference parameter and the reference coefficient, the reference parameter is determined based on the reference coefficient.
The device for adjusting the brightness of a display panel according to claim 18, wherein the calculation module is configured to obtain the a second linear relationship between the reference parameter and the reference coefficient;

The relational expression of the second linear relationship is:

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

Wherein, the first adjustment parameter is the current first charging time, the first data voltage or the first duty cycle of the panel to be adjusted at the first position, and the second adjustment parameter is the current to-be-adjusted panel the second charging time, the second data voltage or the second duty cycle of the panel at the second position, and the reference parameter is the current reference charging time, reference data voltage or reference of the panel to be adjusted at the reference position duty cycle;

The first coefficient is the first position information or the first resistance value of the panel to be adjusted at the first position, and the second coefficient is the second position information of the panel to be adjusted at the second position or a second resistance value; the reference coefficient is the reference position information or reference resistance value of the panel to be adjusted at the reference position.
The device for adjusting the brightness of a display panel according to claim 13, wherein the calculation module is configured to obtain a reference parameter of the panel to be adjusted at the reference position;

Obtain the first historical brightness value, the first historical adjustment parameter, the second historical brightness value, and the second historical adjustment parameter of the panel to be adjusted at the first position within the predetermined historical adjustment period; or, obtain the predetermined historical adjustment period the third historical brightness value, the third historical adjustment parameter, the fourth historical brightness value and the fourth historical adjustment parameter of the panel to be adjusted at the second position;

Determine the correlation 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, according to the third history The brightness value, the third historical adjustment parameter, the fourth historical brightness value, and the fourth historical adjustment parameter, to determine the correlation between the reference brightness value and the reference parameter;

According to the association relationship between the reference luminance value and the reference parameter, the reference luminance value is determined based on the reference parameter.