CN116030759A - Method and device for determining compensation parameters, compensation method, device and storage medium - Google Patents

Abstract

A compensation parameter determining method, a compensation parameter determining device, an electronic device, and a computer-readable storage medium. The method for determining the compensation parameters is applied to a display panel, the display panel comprises M sub-pixels which are arranged in an array, and the method for determining the compensation parameters comprises the following steps: obtaining M first brightness vectors corresponding to the M sub-pixels respectively; based on the M first brightness vectors, carrying out merging operation to obtain K first compensation parameters of the M sub-pixels; determining a plurality of second compensation parameters of the display panel based on the K first compensation parameters; wherein M is an integer greater than 1, K is a positive integer less than M, and the number of the plurality of second compensation parameters is less than M. The method can utilize merging operation to reduce the number of compensation parameters to be smaller than the number of sub-pixels, realize data compression to a certain extent and further reduce the calculated amount and the storage amount required by compensation.

Description

Method and device for determining compensation parameters, compensation method, equipment and storage medium

technical field

Embodiments of the present disclosure relate to a method for determining compensation parameters, a compensation method, a device for determining compensation parameters, electronic equipment, and a computer-readable storage medium.

Background technique

Due to the difference in the threshold voltage (Vth) and mobility of the driving transistor (D-TFT), as well as the difference in other process stages in the production process, it may cause the display unevenness (Mura) of the OLED (organic light emitting diode) display screen, so , it is necessary to perform uniformity compensation on the display screen.

Contents of the invention

At least one embodiment of the present disclosure provides a method for determining compensation parameters, which is applied to a display panel, wherein the display panel includes M sub-pixels arranged in an array, and the method includes: obtaining M first luminance vectors; based on the M first luminance vectors, perform a merging operation to obtain K first compensation parameters about the M sub-pixels; based on the K first compensation parameters, determine the display A plurality of second compensation parameters of the panel; wherein, M is an integer greater than 1, K is a positive integer smaller than M, and the number of the plurality of second compensation parameters is less than M.

For example, in the determination method provided by an embodiment of the present disclosure, the first luminance vector corresponding to each sub-pixel in the M sub-pixels includes N display luminances of each sub-pixel in N gray scales respectively.

For example, in the determination method provided by an embodiment of the present disclosure, the K first compensation parameters are not equal; each of the K first compensation parameters corresponds to one of the M sub-pixels at least one subpixel.

For example, in the determination method provided by an embodiment of the present disclosure, the merging operation includes a first merging operation; based on the M first luminance vectors, a merging operation is performed to obtain the Kth sub-pixels for the M sub-pixels A compensation parameter, including: calculating and obtaining M vector modulus lengths based on the M first luminance vectors; performing the first combining operation on the M vector modulus lengths to combine the M vector modulus lengths are P vector modulus lengths; based on the P vector modulus lengths, determine P second brightness vectors, where each of the P second brightness vectors corresponds to at least one sub-pixel in the M sub-pixels ; Generate the K first compensation parameters based on the P second brightness vectors; wherein, P is a positive integer smaller than M.

For example, in the determination method provided by an embodiment of the present disclosure, the values of the modulus lengths of the P vectors are different.

For example, in the determination method provided in an embodiment of the present disclosure, the first combining operation is performed on the M vector moduli to combine the M vector moduli into P vector moduli, including: The M vector modulus lengths are subjected to frequency statistics to determine the Q vector modulus lengths with different values among the M vector modulus lengths and the frequencies corresponding to the Q vector modulus lengths respectively, wherein Q is a positive value less than M Integer; based on the numerical value of the Q vector modulus lengths, sort the Q vector modulus lengths to obtain a first sequence; based on the first frequency threshold, sort the Q vector modulus lengths in the first sequence The first merge operation is performed to obtain the P vector moduli lengths.

For example, in the determination method provided in an embodiment of the present disclosure, the first combining operation includes a first sub-combining operation; performing the first combining operation on the Q vector moduli lengths in the first sequence, Including: performing the first sub-combination operation on the Q vector moduli lengths at least once and updating the first sequence until the number of vector modulo lengths contained in the updated first sequence is not greater than a first number threshold, wherein , the P vector modulus lengths include the vector modulus lengths included in the updated first sequence obtained by the last first submerging operation.

For example, in the determining method provided by an embodiment of the present disclosure, each of the first sub-merging operations includes: determining the modulus length of the first vector whose frequency in the first sequence is less than the first frequency threshold; determining the A vector modulus length adjacent to the first vector modulus length in the first sequence is used as the second vector modulus length; the first vector modulus length and the second vector modulus length are merged to obtain the merged vector modulus length long; based on the frequency of the first vector modulus length and the frequency of the second vector modulus length, determine the frequency of the merged vector modulus length; delete the first vector modulus length and The second vector modulus length, and the merged vector modulus length is added to the first sequence to obtain the updated first sequence corresponding to the first submerging operation, wherein the first sub The updated first sequence corresponding to the merge operation includes the merged vector module length and the unmerged vector module length in the first sequence; if the updated first sequence corresponding to the first sub-merge operation The number of vector modulus lengths contained in a sequence is greater than the first quantity threshold, then the next first sub-merge operation is performed based on the updated first sequence corresponding to the first sub-merge operation; if the first If the number of vector modulus lengths contained in the updated first sequence corresponding to the sub-combination operation is not greater than the first number threshold, then the updated first sequence corresponding to the first sub-merge operation contains Multiple vector modulus lengths are used as the P vector modulus lengths.

For example, in the determination method provided by an embodiment of the present disclosure, the merging operation further includes a second merging operation; generating the K first compensation parameters based on the P second luminance vectors includes: based on the P second luminance vectors to obtain a luminance matrix, wherein the luminance matrix includes M second luminance vectors respectively corresponding to the M sub-pixels; based on the luminance matrix, M initial compensation parameters are generated; for the M performing the second combining operation on the K initial compensation parameters to generate the K first compensation parameters.

For example, in the determination method provided in an embodiment of the present disclosure, performing the second combination operation on the M initial compensation parameters to generate the K first compensation parameters includes: performing the second combination operation on the M initial compensation parameters Perform frequency statistics on the parameters to determine the R initial compensation parameters with different values among the M initial compensation parameters and the frequencies corresponding to the R initial compensation parameters, wherein R is a positive integer less than M; based on the The values of the R initial compensation parameters are sorted to obtain a second sequence; based on the second frequency threshold, the R initial compensation parameters in the second sorting are sorted. A second merging operation to obtain the K first compensation parameters; wherein, the second merging operation includes a second sub-merging operation; performing the first merging operation on the R initial compensation parameters in the second sorting Two merging operations, including: performing at least one second sub-merging operation on the R initial compensation parameters and updating the second sequence; wherein the K first compensation parameters include the last second sub-merging operation The resulting updated second sequence includes initial compensation parameters.

For example, in the determination method provided by an embodiment of the present disclosure, each second sub-combination operation includes: determining the first initial compensation parameters whose frequency in the second sequence is less than the second frequency threshold; determining the An initial compensation parameter adjacent to the first initial compensation parameter in the second sequence is used as a second initial compensation parameter; combining the first initial compensation parameter and the second initial compensation parameter to obtain a combined initial compensation parameter; based on the frequency of the first initial compensation parameter and the frequency of the second initial compensation parameter, determine the frequency of the combined initial compensation parameter; delete the first initial compensation parameter and the frequency of the second initial compensation parameter from the second sequence The second initial compensation parameter, and adding the combined initial compensation parameter to the second sequence to obtain an updated second sequence corresponding to the second sub-combination operation; wherein, the second sub- The updated second sequence corresponding to the merge operation includes the merged initial compensation parameters and the unmerged initial compensation parameters in the second sequence.

For example, in the determination method provided by an embodiment of the present disclosure, the merging operation includes a third merging operation; based on the M first luminance vectors, a merging operation is performed to obtain the Kth sub-pixels for the M sub-pixels A compensation parameter, comprising: obtaining corresponding M initial compensation parameters based on the M first brightness vectors; performing the third combining operation on the M initial compensation parameters to generate the K first compensation parameters parameter.

For example, the determination method provided by an embodiment of the present disclosure further includes: based on the K first compensation parameters, simulating the display panel to obtain a simulation result; in response to the simulation result, characterizing that the display panel presents the first In a display state, adjust the second frequency threshold, and re-execute the second combining operation based on the adjusted second frequency threshold to obtain updated multiple first compensation parameters until the updated multiple The simulation result corresponding to the first compensation parameter indicates that the display panel presents the second display state; or, in response to the simulation result representing that the display panel presents the first display state, adjusting the first frequency threshold and the second frequency threshold, and re-execute the first combination operation and the second combination operation based on the adjusted first frequency threshold and the adjusted second frequency threshold to obtain a plurality of updated first compensation parameters until the The simulation results corresponding to the updated first compensation parameters indicate that the display panel presents the second display state.

For example, in the determination method provided by an embodiment of the present disclosure, determining multiple second compensation parameters of the display panel based on the K first compensation parameters includes: The pixels are divided into blocks to obtain a plurality of sub-pixel blocks; based on the K first compensation parameters, a plurality of area compensation parameters respectively corresponding to the plurality of sub-pixel blocks are determined; based on the plurality of area compensation parameters, the plurality of area compensation parameters are obtained. a second compensation parameter.

For example, in the determination method provided in an embodiment of the present disclosure, based on the K first compensation parameters, determining a plurality of area compensation parameters respectively corresponding to the plurality of sub-pixel blocks includes: based on the K first compensation parameters parameters, generating a compensation parameter matrix, wherein the compensation parameter matrix includes M first compensation parameters respectively corresponding to the M sub-pixels; based on the compensation parameter matrix, generating the respective corresponding to the plurality of sub-pixel blocks Multiple zone compensation parameters.

For example, in the determination method provided by an embodiment of the present disclosure, each of the K first compensation parameters corresponds to an index value; based on the K first compensation parameters, the display panel A plurality of second compensation parameters, including: based on the expected compression ratio, block the M sub-pixels to obtain a plurality of sub-pixel blocks; based on the K index values corresponding to the K first compensation parameters, generate An index matrix, wherein the index matrix includes M index values respectively corresponding to the M sub-pixels; based on the index matrix, a plurality of area index values corresponding to the plurality of sub-pixel blocks are generated; based on the multiple area index values to obtain the plurality of second compensation parameters.

For example, in the determination method provided by an embodiment of the present disclosure, the index value corresponding to each sub-pixel is the index value of the compensation parameter corresponding to the sub-pixel.

For example, in the determination method provided by an embodiment of the present disclosure, based on the compensation parameter matrix, generating a plurality of area compensation parameters respectively corresponding to the plurality of sub-pixel blocks includes: for each of the sub-pixel blocks, Perform weighted average processing on a plurality of first compensation parameters corresponding to the sub-pixel block in the compensation parameter matrix, and use the processing result as the area compensation parameter corresponding to the sub-pixel block; or take the compensation parameter matrix corresponding to the described The compensation parameter with the highest frequency among the plurality of first compensation parameters corresponding to the sub-pixel block is used as the area compensation parameter corresponding to the sub-pixel block; or the plurality of first compensation parameters corresponding to the sub-pixel block in the compensation parameter matrix are taken The median of the parameters is used as the area compensation parameter corresponding to the sub-pixel block.

At least one embodiment of the present disclosure provides a compensation method for compensating a display panel, wherein the display panel includes M sub-pixels arranged in an array, including: according to the determination method provided by any embodiment of the present disclosure, obtained A plurality of second compensation parameters of the display panel; based on the plurality of second compensation parameters, generating M target compensation parameters respectively corresponding to the M sub-pixels; based on the M target compensation parameters, for the M sub-pixels for compensation.

At least one embodiment of the present disclosure provides a device for determining compensation parameters, which is applied to a display panel, wherein the display panel includes M sub-pixels arranged in an array, and the device includes an acquisition module, a combination module and a determination module, and the acquisition module It is configured to obtain M first brightness vectors respectively corresponding to the M sub-pixels; the combination module is configured to perform a combination operation based on the M first brightness vectors to obtain K first compensations for the M sub-pixels Parameter; the determination module is configured to determine a plurality of second compensation parameters of the display panel based on the K first compensation parameters; wherein, M is an integer greater than 1, K is an integer smaller than M, and the plurality of second compensation parameters The number of two compensation parameters is less than M.

At least one embodiment of the present disclosure provides an electronic device, including a processor; a memory storing one or more computer program modules; wherein, the one or more computer program modules are configured to be executed by the processor, using The method for determining compensation parameters and/or the compensation method provided by any embodiment of the present disclosure is implemented.

At least one embodiment of the present disclosure provides a computer-readable storage medium storing non-transitory computer-readable instructions. When the non-transitory computer-readable instructions are executed by a computer, the compensation provided by any embodiment of the present disclosure can be realized. Parameter determination method and/or compensation method.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present disclosure more clearly, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description only relate to some embodiments of the present disclosure, rather than limiting the present disclosure .

Fig. 1 shows a schematic diagram of a display panel provided by at least one embodiment of the present disclosure;

Fig. 2 shows a flowchart of a method for determining compensation parameters provided by at least one embodiment of the present disclosure;

Fig. 3 shows a schematic diagram of a first brightness vector provided by at least one embodiment of the present disclosure;

FIG. 4 shows a flowchart of step S220 shown in FIG. 2 provided by at least one embodiment of the present disclosure;

Fig. 5 shows a statistical diagram of vector modulus length and frequency provided by at least one embodiment of the present disclosure;

FIG. 6 shows a flowchart of step S224 shown in FIG. 4 provided by at least one embodiment of the present disclosure;

FIG. 7 shows a flowchart of step S230 shown in FIG. 2 provided by at least one embodiment of the present disclosure;

Fig. 8 shows a flowchart of a compensation method provided by at least one embodiment of the present disclosure;

Fig. 9 shows a schematic block diagram of an apparatus for determining a compensation parameter provided by at least one embodiment of the present disclosure.

Fig. 10 shows a schematic block diagram of an electronic device provided by at least one embodiment of the present disclosure;

Fig. 11 shows a schematic block diagram of another electronic device provided by at least one embodiment of the present disclosure; and

Fig. 12 shows a schematic diagram of a computer-readable storage medium provided by at least one embodiment of the present disclosure.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some of the embodiments of the present disclosure, not all of them. Based on the described embodiments of the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative effort fall within the protection scope of the present disclosure.

Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Likewise, words like "a", "an" or "the" do not denote a limitation of quantity, but mean that there is at least one. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right" and so on are only used to indicate the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

Compensation methods include external optical compensation and internal circuit compensation. External optical compensation refers to the method of sensing the optical characteristics of pixels through external devices and then performing compensation. For example, a camera is used to take pictures of the display panel to obtain brightness values of each sub-pixel at several gray levels, and then calculate and obtain compensation data.

The inventors found that the compensation data for external compensation of screens such as OLED displays often needs to be accurate to the sub-pixel level, and the size of the generated compensation data is usually (screen width*screen height*sub-pixel replacement ratio*compensation data bit width), sub-pixel The pixel replacement ratio indicates the number of sub-pixels included in one physical pixel, for example, one physical pixel includes two sub-pixels, and the sub-pixel replacement ratio=2:1. The total compensation data will be as high as tens of megabits, and the display driver chip (Display Drive Integrated Circuit) used in screens such as OLED displays often cannot support such a large amount of data.

At least one embodiment of the present disclosure provides a method for determining compensation parameters, a compensation method, an apparatus for determining compensation parameters, electronic equipment, and a computer-readable storage medium. The method for determining the compensation parameter is applied to a display panel, and the display panel includes M sub-pixels arranged in an array, and the method for determining the compensation parameter includes: obtaining M first brightness vectors respectively corresponding to the M sub-pixels; The first luminance vector is combined to obtain K first compensation parameters for the M sub-pixels; based on the K first compensation parameters, multiple second compensation parameters of the display panel are determined; wherein, M is greater than is an integer of 1, K is a positive integer less than M, and the number of the plurality of second compensation parameters is less than M.

The method for determining the compensation parameters can use a combination operation to reduce the number of compensation parameters to less than the number of sub-pixels, achieve a certain degree of data compression, and further reduce the amount of calculation and storage required for compensation.

Fig. 1 shows a schematic diagram of a display panel provided by at least one embodiment of the present disclosure.

As shown in FIG. 1 , the display panel 100 includes M sub-pixels Pxij arranged in an array, where M is an integer greater than 1. For example, the display panel 100 includes sub-pixels in x rows and y columns, then M=x*y, i is a positive integer smaller than x, and i represents the number of rows where the sub-pixel is located; j is a positive integer smaller than y, and j represents the location where the sub-pixel is located. number of columns.

For example, the display panel 100 may be an OLED display panel, a QLED (Quantum Dot Light Emitting Diodes) display panel, and the like.

Each pixel unit is composed of several sub-pixels, for example, each pixel unit includes three sub-pixels, namely red (R) sub-pixel, green (G) sub-pixel and blue (B) sub-pixel, red (R) sub-pixel The pixel, the green (G) sub-pixel and the blue (B) sub-pixel emit red light, green light and blue light, respectively. For example, if three sub-pixels of R, G and B are arranged circularly in each row, then three consecutive sub-pixels in each row can form a pixel unit, thus in the display panel 100, the arrangement of sub-pixels is RGBRGB. In the following embodiments, each pixel unit includes three sub-pixels of R, G and B for illustration, but the disclosure is not limited thereto. The composition of the above-mentioned pixel units and the arrangement of sub-pixels are only exemplary. In practical applications, other methods can also be used to set the pixel units and sub-pixels. For example, the pixel units can also include R, G and B Other sub-pixels, such as W (white) sub-pixels; for another example, the sub-pixels can also be arranged in PenTile (ie, RGBG).

In the following embodiments, the determination of the compensation parameters of the above-mentioned display panel is taken as an example for illustration. It should be noted that the method for determining compensation parameters in the embodiments of the present disclosure may also be applied to other types of display panels.

Fig. 2 shows a flowchart of a method for determining a compensation parameter provided by at least one embodiment of the present disclosure.

As shown in FIG. 2, the determination method may include steps S210-S230.

Step S210: Obtain M first luminance vectors respectively corresponding to the M sub-pixels.

Step S220: Based on the M first luminance vectors, perform a merging operation to obtain K first compensation parameters for the M sub-pixels.

Step S230: Based on the K first compensation parameters, determine a plurality of second compensation parameters of the display panel.

For example, in step S210, the first luminance vector corresponding to each sub-pixel in the M sub-pixels includes N display luminances of each sub-pixel in N gray scales respectively.

For example, make all the red sub-pixels of the display panel emit light, make all the red sub-pixels respectively present N gray levels in N time periods, and use a camera to take pictures, so as to obtain the images of each red sub-pixel under the N gray levels. Display brightness, similarly, the display brightness of each green sub-pixel under the N gray scales and the display brightness of each blue sub-pixel under the N gray scales can be obtained.

Fig. 3 shows a schematic diagram of a first brightness vector provided by at least one embodiment of the present disclosure.

As shown in FIG. 3, for each sub-pixel, a first luminance vector Vij can be correspondingly formed, Vij=(L1, L2, L3, ..., Ln), wherein L1, L2, L3, ..., Ln respectively represent N Display brightness.

For example, after obtaining M first luminance vectors, in step S220, a merging operation is performed to obtain K first compensation parameters, where K is a positive integer smaller than M, that is to say, the merging operation makes the obtained first compensation parameters The number of is less than the number of sub-pixels. Each first compensation parameter in the K first compensation parameters corresponds to at least one sub-pixel in the M sub-pixels, for example, at least one first compensation parameter in the K first compensation parameters may correspond to two or more sub-pixels, that is, the two or more sub-pixels share the same first compensation parameter.

For example, the merging operation may combine at least two parameters corresponding to at least two sub-pixels in the M sub-pixels into one parameter, so as to obtain an initial compensation parameter for the at least two sub-pixels according to the combined parameters, wherein the at least The two parameters may be different parameters, and the parameters here may be parameters related to compensation parameters, such as parameters related to brightness (such as the first brightness vector or brightness parameters calculated based on the first brightness vector), or compensation parameters. For example, the first compensation parameter can be calculated according to the first brightness vector. If the first brightness vectors of two sub-pixels are merged into the same first brightness vector, then the parameters for the two sub-pixels can be calculated based on the same first brightness vector. One compensation parameter of the pixel, instead of calculating the compensation parameter once for each brightness vector of the sub-pixel.

For example, the K first compensation parameters are not equal. For example, in addition to combining different parameters, the merging operation can also combine the same parameters to avoid repeated calculations for the same parameters. The pixel calculation obtains a first compensation parameter without repeated calculation for the same brightness parameter.

For example, in step S230, a plurality of second compensation parameters may be obtained according to the aforementioned K first compensation parameters, and the number of the plurality of second compensation parameters is also less than M, so as to further achieve a certain degree of data compression. The plurality of second compensation parameters can be used as the finally determined compensation parameters. After obtaining the plurality of second compensation parameters, they can be stored, so that when the display panel is used subsequently, the plurality of second compensation parameters can be called for each sub- Pixels are compensated for brightness.

For example, the number of the plurality of second compensation parameters is equal to or smaller than K. For example, in step S220, if the data compression ratio during the merging operation has reached the expected compression ratio, for example, the number of the first compensation parameter has been compressed to be less than or equal to the expected number, then in step S230, the K A first compensation parameter is directly used as the plurality of second compensation parameters. If the data compression ratio during the merging operation does not reach the expected compression ratio, further reduction may be performed on the basis of the K first compensation parameters in step S230 to obtain a smaller number of second compensation parameters.

According to the method for determining compensation parameters in the embodiments of the present disclosure, the number of compensation parameters is reduced to less than the number of sub-pixels by using the combination operation, and a certain degree of data compression is achieved, thereby reducing the amount of calculation and storage required for brightness compensation, and reducing the Make up time and save costs.

For example, in some embodiments, the parameters combined by the merging operation may include brightness-related parameters, that is, parameters that can reflect the brightness difference of sub-pixels, for example, it may be a brightness parameter calculated based on the first brightness vector, such as the first brightness The modulo length of the vector.

Fig. 4 shows a flowchart of step S220 provided by at least one embodiment of the present disclosure.

For example, the merging operation includes the first merging operation. As shown in FIG. 4 , step S220 may include steps S221-S224.

Step S221: Based on the M first luminance vectors, calculate M vector modulus lengths.

Step S222: Perform the first combining operation on the M vector moduli to merge the M vector moduli into P vector moduli.

Step S223: Determine P second brightness vectors based on the modulo lengths of the P vectors.

Step S224: Generate the K first compensation parameters based on the P second brightness vectors.

For example, each of the P second brightness vectors corresponds to at least one sub-pixel in the M sub-pixels, and P is a positive integer smaller than M.

For example, the values of the modulus lengths of the P vectors obtained by combining may be different. The P vector moduli may include part of the M vector moduli, or may include new vector moduli generated based on at least part of the M vector moduli.

For example, among M vector modulus lengths, there may be vector modulus lengths with equal values, and the equal vector modulus lengths among the M vector modulus lengths can be combined to obtain several unequal vector modulus lengths. For example, sub-pixel Px11 corresponds to The luminance vector V11, the sub-pixel Px12 corresponds to the luminance vector V12, if the vector modulus d11 of V11 is equal to the vector modulus d12 of V12, the two are merged into one vector modulus, and the merged vector modulus corresponds to the sub-pixels Px11 and Px12.

For example, part of the vector modules among the M vector modules can also be combined to form a new vector module, for example, two or more different vector modules can be combined into a new vector module. For example, the sub-pixel Px13 corresponds to the brightness vector V13, and the sub-pixel Px14 corresponds to the brightness vector V14. The modulus d13 of V13 is not equal to the modulus d14 of V14. The vector modulus d13 and the vector modulus d14 can be combined into a new vector modulus length, The new vector modulus corresponds to the sub-pixel Px13 and the sub-pixel Px14.

For example, the above-mentioned step S222 may include: performing frequency statistics on the M vector modulus lengths to determine the Q vector modulus lengths with different values among the M vector modulus lengths and the respective frequencies corresponding to the Q vector modulus lengths , wherein, Q is a positive integer less than M; based on the numerical values of the Q vector moduli, the Q vector moduli are sorted to obtain the first sequence; based on the first frequency threshold, the first sequence The first combining operation is performed on the Q vector moduli to obtain the P vector moduli. In the embodiments of the present disclosure, through the first merging operation, the luminance vectors can be classified and compressed according to the Mura characteristics of the display panel, and more compensation details can be preserved.

Fig. 5 shows a statistical graph of vector modulus length d and frequency f provided by at least one embodiment of the present disclosure.

As shown in Figure 5, for example, M vector modulus lengths are d11～dxy, and there may be equal vector modulus lengths, and Q vector modulus lengths with unequal values are obtained from the M vector modulus lengths. In order to be consistent with the above d11 ~dxy are distinguished, and the lengths of the Q vector modules are marked as dv1~dvq. The vector modulus lengths with the same value can be called a class, and the Q vector modulus lengths can be understood as the combination of M vector modulus lengths. For example, if the vector modulus length d11 (for example, corresponding to sub-pixel Px11) and The vector modulus length d12 (such as the corresponding sub-pixel Px12) is equal, and d11 and d12 can be combined into a vector modulus length, for example, merged into a vector modulus length dv1, the value of the vector modulus length dv1 is equal to d11 and d12, and the vector modulus The length dv1 corresponds to two sub-pixels (for example, Px11 and Px12). Each of the Q vector modulus lengths can correspond to one or more sub-pixels, and the number of sub-pixels corresponding to each vector modulus length is the frequency of the vector modulus length. For example, the vector modulus length dv1 corresponds to two sub-pixels, then The frequency of the vector modulus dv1 is 2. In this way, Q vector modulus lengths with different values and the frequency of each vector modulus length can be obtained.

For example, the Q vector modulus lengths can be sorted according to their numerical values. As shown in FIG. 5 , the Q vector modulus lengths are arranged in order from small to large to obtain the first sequence. For the convenience of description, the embodiments of the present disclosure use The values of dv1-dvq increase sequentially as an example for illustration, so the first sequence is [dv1, dv2, . . . , dvq]. The first merging operation will be described in detail below in conjunction with the statistical graph of vector modulus length and frequency shown in FIG. 5 .

For example, the first merging operation may include at least one first sub-merging operation, and each first sub-merging operation may include: combining at least one vector modulo length smaller than the first frequency threshold in the first sequence with at least one adjacent vector The module lengths are combined into at least one combined vector module length, and the first sequence is updated to obtain an updated first sequence, wherein the updated first sequence includes the at least one combined vector module length and the first sequence Among the unmerged vector modulus lengths; wherein, the P vector modulus lengths include the vector modulus lengths included in the updated first sequence obtained by the last first sub-merge operation in the first merge operation.

For example, in each first submerging operation, determine the first vector modulus length of the first sequence whose frequency is less than the first frequency threshold (for example, all vector moduli lengths whose frequency is less than the first frequency threshold can be determined); determine the first A vector modulus length adjacent to the first vector modulus length in the sequence is used as the second vector modulus length; the first vector modulus length is combined with the second vector modulus length to obtain the combined vector modulus length; based on the first vector modulus length The frequency of a vector modulus length and the frequency of the second vector modulus length determine the frequency of the merged vector modulus length; delete the first vector modulus length and the second vector modulus length from the first sequence, and in the The modulus length of the merged vector is increased in the first sequence to obtain the updated first sequence corresponding to the first sub-merge operation. If the first sub-combination operation is the first first sub-combination operation, the updated first sequence corresponding to the first sub-combination operation includes the combined initial compensation parameters and the first sub-combination parameters obtained in the first sub-combination operation. Uncombined initial compensation parameters in a sequence; if the first sub-combination operation is not the first first sub-combination operation, the updated first sequence corresponding to the first sub-combination operation includes the first sub-combination operation The combined initial compensation parameters obtained in the operation and the updated first sequence corresponding to the last first sub-combination operation were not combined in the first sub-combination operation. Then, the next first sub-merging operation may be performed based on the updated first sequence, and the vector modulus lengths included in the updated first sequence obtained by the last first sub-merging operation are used as the P vector moduli lengths.

For example, in each first sub-merging operation, the vector modulus lengths whose frequency is smaller than the first frequency threshold in the first sequence are merged into adjacent vector modulus lengths. In an example, in the first first submerging operation, the first sequence targeted is [dv1, dv2,...,dvq] obtained above, and at least one frequency is determined from the first sequence that is less than the first The vector modulus of the frequency threshold, for example, if the first frequency threshold is 3, and the frequency of the vector modulus dv1 is, for example, 2, then the frequency of the vector modulus dv1 is smaller than the first frequency threshold. Then, a vector modulus length adjacent to the vector modulus length in the first sequence is determined, and the vector modulus length and adjacent vector modulus lengths are combined to obtain the combined vector modulus length. For example, the vector modulus length dv1 is adjacent to the vector modulus length dv2, and the vector modulus length dv1 and the vector modulus length dv2 are combined to obtain a new vector modulus length dv(12) (that is, the combined vector modulus length). The value of the new vector modulus length can be calculated according to the value and frequency of the merged vector modulus length, for example, if the value of the vector modulus length dv1 is 9 and the frequency is 2, the value of the vector modulus length dv2 is 10 and the frequency is 3 , then the value of the new vector modulus length dv(12) can be (9*2+10*3)/(2+3)=9.6. In some other embodiments, the value of the new vector modulus dv(12) may also take the value of the vector modulus length with a higher frequency among the combined vector moduli dv1 and dv2. And, the frequency of the new vector modulus dv(12) can be calculated, and the frequency of dv(12) of the vector modulus can be, for example, the sum of the frequencies of the merged vector moduli dv1 and dv2, that is, the frequency is 5. Then, [dv1,dv2,...,dvq] from the first sequence will be deleted from the merged vector models dv1 and dv2, and a new vector modulus dv(12) will be added in the first sequence. Based on this method, all merged vector modulus lengths in the first first sub-merging operation are deleted and all new vector modulus lengths are added to obtain the updated first sequence, that is to say, the new vector obtained by merging The modulus lengths and the unmerged vector modulus lengths form the updated first sequence, and in the updated first sequence, all the vector modulus lengths are also sorted according to their numerical values.

For example, in the next first sub-merge operation, the updated first sequence obtained in the last first sub-merge operation is combined to obtain the updated first sequence, and so on until the last first sub-merge sequence is obtained. For the updated first sequence obtained by the sub-merge operation, the vector modulus length included in the updated first sequence obtained by the last first sub-merge operation is used as the P vector modulus lengths.

For example, in each first sub-merging operation, all vector moduli lengths whose frequencies are less than the first frequency threshold may be determined to be merged, or only part of the vector moduli lengths whose frequencies are less than the first frequency threshold may be merged.

For example, in some embodiments, if a vector modulus length smaller than the first frequency threshold has two adjacent vector modulus lengths, it may first be determined whether the frequencies of the two adjacent vector modulus lengths are greater than or equal to the first Frequency threshold, if there is only one frequency whose vector modulus length is greater than or equal to the first frequency threshold, then the vector modulus length whose frequency is greater than or equal to the first frequency threshold is merged with the vector modulus length whose frequency is less than the first frequency threshold. If the frequencies of the two adjacent vector moduli are both greater than or equal to the first frequency threshold, the vector modulus with a higher frequency is selected for merging with the vector modulus whose frequency is smaller than the first frequency threshold.

For example, in each first sub-combining operation, the vector moduli with less frequency are merged into the adjacent vector moduli, which reduces the number of vector moduli, thereby reducing the amount of data in the process of calculating compensation parameters. In addition, since the vector modulus length can reflect the brightness of the sub-pixel, the above method can regard the sub-pixels with similar brightness as a group, and calculate the compensation parameters once for this group of sub-pixels, and the compensation parameters of the sub-pixels with similar brightness are also similar , therefore, the difference between the compensation parameters calculated for the group of sub-pixels and the compensation parameters calculated for each of the sub-pixels is small, therefore, based on this method, the error caused by the merging operation can be reduced.

For example, the number of executions of the first sub-merging operation may be determined according to actual conditions, or whether to end the first sub-merging operation may be determined in the following manner. For example, the first sub-combination operation is performed at least once on the Q vector moduli and the first sequence is updated until the number of vector moduli included in the updated first sequence is not greater than the first quantity threshold. That is to say, until the number of vector modulo lengths is less than or equal to the first number threshold, the first sub-merging operation may be ended, that is, the first merging operation may be ended. The vector modulus lengths included in the updated first sequence obtained by the last first submerging operation may be used as the P vector modulus lengths. Based on this approach, the number of vector modulus lengths can be reduced to an expected number, achieving an expected compression ratio.

For example, the first quantity threshold may be expressed as MAX=Para_bit_per_subpixel compress_ratio. Wherein, Para_bit_per_subpixel represents the total bit width of the compensation parameters of each sub-pixel, for example, the number of gray levels is N, and the compensation parameters of each gray level is 8 bits, then the total bit width of the compensation parameters of sub-pixels is 8N. compress_ratio represents the expected compression ratio, if compress_ratio=8, then MAX=8N/8=N.

For example, in each first sub-merge operation, after obtaining the updated first sequence corresponding to the first sub-merge operation, the vector contained in the updated first sequence corresponding to the first sub-merge operation can be determined Whether the number of module lengths is greater than the first number threshold, if the number of vector module lengths contained in the updated first sequence corresponding to the first sub-merging operation is greater than the first number threshold, based on the first sub-merging operation The updated first sequence corresponding to the operation executes the next first sub-merge operation; if the number of vector modulus lengths contained in the updated first sequence corresponding to the first sub-merge operation is not greater than the first number threshold, then The plurality of vector modulus lengths included in the updated first sequence corresponding to the first sub-merging operation are used as the P vector modulus lengths.

For example, in a first sub-combination operation, if the values of all vector modulus lengths are greater than or equal to the first frequency threshold, then the value of the first frequency threshold can be increased by a predetermined increment on the basis of the current value (the The increment can be set according to experience), so as to continue to perform the subsequent first sub-merging operation based on the increased first frequency threshold.

For example, in step S222, P vector modulus lengths are obtained, and a corresponding relationship between each vector modulus length and a sub-pixel is obtained. In step S223, based on the modulo lengths of the P vectors, corresponding P second luminance vectors can be obtained, and a corresponding relationship between each second luminance vector and a sub-pixel can be obtained. For example, a correspondence table of vector modulus lengths and luminance vectors may be pre-stored in the memory, and for each of the P vector modulus lengths, the same or similar vector modulus lengths are found from the correspondence table, and then the corresponding luminance vector, and use it as the corresponding second brightness vector. After obtaining the P second luminance vectors, step S224 may be executed to obtain K first compensation parameters. It should be noted that the number of vector modulus lengths in the correspondence table is limited, and each of the P vector modulus lengths can be rounded to correspond to the closest vector modulus length in the correspondence table.

For example, in some embodiments, the merging operation further includes a second merging operation. After a plurality of initial compensation parameters are calculated according to the P second luminance vectors, a second merging operation may be performed on the plurality of initial compensation parameters to reduce the number of compensation parameters quantity.

Fig. 6 shows a flowchart of step S224 provided by at least one embodiment of the present disclosure.

As shown in FIG. 6, step S224 may include step S2241 to step S2243.

Step S2241: Obtain a brightness matrix based on the P second brightness vectors. For example, the brightness matrix includes M second brightness vectors respectively corresponding to the M sub-pixels.

Step S2242: Based on the brightness matrix, generate M initial compensation parameters.

Step S2243: Perform the second merging operation on the M initial compensation parameters to generate the K first compensation parameters.

For example, in step S2241, the P second brightness vectors are, for example, [Vs1, Vs2, Vs3, . The M second brightness vectors in the brightness matrix can be arranged in an array of M sub-pixels as shown in Figure 1, that is, the elements of the brightness matrix correspond to the sub-pixels shown in Figure 1 one by one, and the brightness matrix is, for example, as follows:

For example, if the first four sub-pixels in the first row shown in Figure 1 are Px11, Px12, Px13 and Px14 respectively, and the first four elements in the first row of the luminance matrix are Ve11, Ve12, Ve13 and Ve14 respectively, then Ve11, Ve12, Ve13 and Ve14 are the second brightness vectors corresponding to Px11, Px12, Px13 and Px14 respectively. For example, if Vs1 in the P second brightness vectors corresponds to sub-pixels Px11, Px12, Px13 and Px14, then Ve11, Ve12, Ve13 and Ve14 are all equal to Vs1.

For example, in step S2242, corresponding M initial compensation parameters are calculated according to the M second brightness vectors in the brightness matrix. For elements with the same value in the luminance matrix, the calculation can be performed only once and the calculated initial compensation parameters can be shared without repeated calculation, thereby reducing the calculation amount of the compensation process.

For example, the obtaining of the corresponding compensation parameter according to the brightness vector described in the embodiment of the present disclosure may be calculated based on the expected brightness of the sub-pixel at N gray scales and the brightness value contained in the brightness vector, and the compensation parameter is used to make the sub-pixel Display brightness is at or close to expected brightness. For example, at a certain gray scale, the expected brightness of the sub-pixel is 150, and the brightness value corresponding to the gray scale in the brightness vector is 100, then the compensation parameters can be adjusted to increase the brightness of the sub-pixel at the gray scale by 50 .

For example, in step S2243, a second combination operation may be performed on the M initial compensation parameters, so as to combine the M initial compensation parameters into K first compensation parameters.

For example, step S2243 may include: performing frequency statistics on the M initial compensation parameters to determine the R initial compensation parameters with different values among the M initial compensation parameters and the frequencies corresponding to the R initial compensation parameters, wherein , R is a positive integer less than M; based on the value of the R initial compensation parameters, the R initial compensation parameters are sorted to obtain the second sequence; based on the second frequency threshold, the R in the second sorting The second combining operation is performed on the initial compensation parameters to obtain the K first compensation parameters. Wherein, the second merging operation includes at least one second sub-merging operation, and performing the second merging operation on the R initial compensation parameters in the second sorting includes: performing at least one second sub-merging operation on the R initial compensation parameters And update the second sequence.

For example, each second sub-merging operation may include: merging at least one initial compensation parameter in the second sequence smaller than the second frequency threshold with at least one adjacent initial compensation parameter into at least one combined initial compensation parameter, and updating the a second sequence to obtain an updated second sequence, wherein the updated second sequence includes the at least one combined initial compensation parameter and the uncombined initial compensation parameter in the second sequence. The K first compensation parameters include the initial compensation parameters included in the updated second sequence obtained in the last second sub-merging operation in the second merging operation.

For example, each second sub-merging operation may include: determining a first initial compensation parameter whose frequency in the second sequence is less than the second frequency threshold; determining an initial compensation parameter adjacent to the first initial compensation parameter in the second sequence As the second initial compensation parameter; combining the first initial compensation parameter with the second initial compensation parameter to obtain the combined initial compensation parameter; based on the frequency of the first initial compensation parameter and the frequency of the second initial compensation parameter, determining the frequency of the combined initial compensation parameter; deleting the first initial compensation parameter and the second initial compensation parameter from the second sequence, and adding the combined initial compensation parameter to the second sequence to obtain the sequence The updated second sequence corresponding to the second sub-merge operation.

For example, if the second sub-merging operation is the first second sub-merging operation, the updated second sequence corresponding to the second sub-merging operation includes the combined initial compensation parameters obtained in the second sub-merging operation and the second sequence The uncombined initial compensation parameters; if the second sub-combination operation is not the first second sub-combination operation, the updated second sequence corresponding to the second sub-combination operation includes the combined The initial compensation parameters and the unmerged initial compensation parameters in the updated second sequence corresponding to the last second sub-merging operation.

For example, for the process of performing the second combining operation on the M initial compensation parameters, reference may be made to the above-mentioned process of performing the first combining operation on the M vector moduli lengths, which will not be repeated here.

For example, the execution times of the second sub-combination operation may be determined according to actual conditions, or whether to end the second sub-combination operation may also be determined based on an expected compression ratio.

For example, in some other embodiments, in step S224, the corresponding P initial compensation parameters can be obtained according to the P second luminance vectors, and the above-mentioned second combination operation can be directly performed on the basis of the P initial compensation parameters, so as to The P initial compensation parameters are reduced to K first compensation parameters (P>K).

For example, the above embodiment describes the process of performing the first combination operation and the second combination operation, that is, the combination operation is performed on both the brightness parameter and the compensation parameter. In some other embodiments, it is also possible to only perform the combining operation on the luminance parameter, and not to perform the combining operation on the compensation parameter, that is, only perform the first combining operation and not perform the second combining operation. For example, after P second luminance vectors are obtained according to step S223, corresponding P initial compensation parameters are calculated according to the P second luminance vectors, and the P initial compensation parameters can be directly used as K first compensation parameters (P= K). For example, in some other embodiments, only the compensation parameters may be combined, and the brightness parameters may not be combined. This situation will be described below.

For example, the merging operation includes a third merging operation, and step S220 may include: obtaining corresponding M initial compensation parameters based on the M first luminance vectors; performing the third merging operation on the M initial compensation parameters to generate The K first compensation parameters.

For example, the third merging operation is a merging operation performed on the compensation parameters. In this embodiment, the corresponding M initial compensation parameters can be directly calculated based on the M first luminance vectors obtained in step S210. In step S220, a third combining operation is performed to combine the M initial compensation parameters into K first compensation parameters. For the process of performing the third merging operation on the M initial compensation parameters, reference may be made to the above-mentioned process of performing the second merging operation on the M initial compensation parameters, which will not be repeated here.

For example, in some embodiments, the determination method of the embodiment of the present disclosure may further include: based on the K first compensation parameters, simulating the display panel to obtain a simulation result; in response to the simulation result, the display panel presents the first display state, adjust the second frequency threshold, and re-execute the second merge operation based on the adjusted second frequency threshold to obtain the updated multiple first compensation parameters until the simulation results corresponding to the updated multiple first compensation parameters Indicating that the display panel presents the second display state.

For example, when the display panel is in the first display state, it may be considered that the display panel displays abnormally, for example, bright spots or dark spots appear on the display panel. When the display panel is in the second display state, it can be considered that the display effect of the display panel is normal, for example, there are no bright spots or dark spots on the display panel. An abnormal display on the display panel indicates that the display effect of the display panel has not reached the state expected by the user, and a normal display effect of the display panel indicates that the display effect of the display panel has reached the state expected by the user. The state expected by the user can be set by the user according to the actual situation, which is not limited.

For example, adjusting the second frequency threshold may include decreasing the second frequency threshold. After obtaining the K first compensation parameters, use the K first compensation parameters to perform simulation to determine whether the K first compensation parameters obtained by the merge operation will cause abnormal display, such as judging whether there are bright spots or dark spots on the display panel, etc. , if there is an abnormal situation, it means that the K first compensation parameters cause the over-compensation or under-compensation of the display panel. In this case, if the above-mentioned second merging operation was performed before, the second merging operation can be rolled back, the value of the second frequency threshold can be reduced, and the second merging operation can be re-executed based on the lowered second frequency threshold, and the A plurality of first compensation parameters are obtained. Perform simulation again based on the multiple first compensation parameters to determine whether the multiple first compensation parameters still cause abnormal display, if so, lower the second frequency threshold again and re-execute the second merging operation until the updated multiple The first compensation parameter enables the display panel to display normally.

For example, in some other embodiments, the determination method in the embodiment of the present disclosure may further include: based on the K first compensation parameters, simulating the display panel to obtain a simulation result; in response to the simulation result, characterizing that the display panel presents the first a display state, adjust the first frequency threshold and the second frequency threshold, and re-execute the first combining operation and the second combining operation based on the adjusted first frequency threshold and the adjusted second frequency threshold, to obtain The updated multiple first compensation parameters until the simulation result corresponding to the updated multiple first compensation parameters indicates that the display panel presents the second display state.

For example, if the display is abnormal due to K first compensation parameters, the second merge operation and the first merge operation can be withdrawn, and the value of the first frequency threshold and the value of the second frequency threshold can be reduced, based on the reduced first frequency threshold and The first combined operation and the second combined operation are performed again with the lowered second frequency threshold until the updated multiple first compensation parameters make the display panel display normal.

For example, in the case of an abnormality in the display panel, the merging operation is re-performed based on the reduced frequency threshold, and the reduced frequency threshold (the second frequency threshold and/or the first frequency threshold) can reduce the data to be merged, retaining More raw data, therefore, based on this method, both data compression and display effect are guaranteed.

For example, in some embodiments, after the merging operation, it may be determined whether the data compression ratio after the merging operation reaches an expected compression ratio. In the case that the data compression ratio is not smaller than the expected compression ratio, the K first compensation parameters may be directly used as the plurality of second compensation parameters. If the data compression ratio is smaller than the expected compression ratio, the K first compensation parameters may be further compressed to obtain a plurality of second compensation parameters.

Fig. 7 shows a flowchart of step S230 provided by at least one embodiment of the present disclosure.

As shown in FIG. 7, for example, step S230 may include steps S231-S233.

Step S231: Based on the expected compression ratio, divide the M sub-pixels into blocks to obtain multiple sub-pixel blocks.

Step S232: Based on the K first compensation parameters, determine a plurality of area compensation parameters respectively corresponding to the plurality of sub-pixel blocks.

Step S233: Obtain the plurality of second compensation parameters based on the plurality of area compensation parameters.

For example, if the expected compression ratio is N times, and the data compression ratio after the merge operation is S times, it needs to be compressed by N/S times, and the sub-pixels can be divided into blocks based on the N/S. For example, if the expected compression ratio is 8 times, and the data compression ratio after the merge operation is 2 times (for example, K=M/2), then it needs to be compressed by 4 times to achieve the expected compression ratio. In this case, the Every 4 sub-pixels are divided into a sub-pixel block, as shown in Figure 1, for example, adjacent 2*2 sub-pixels in the horizontal and vertical directions are used as a sub-pixel block B, or they can also be adjacent in the horizontal or vertical direction The 1*4 sub-pixels of are used as a sub-pixel block.

For example, step S232 may include: generating a compensation parameter matrix based on the K first compensation parameters, wherein the compensation parameter matrix includes M first compensation parameters respectively corresponding to the M sub-pixels; based on the compensation parameter matrix, generating A plurality of area compensation parameters respectively corresponding to the plurality of sub-pixel blocks.

For example, the K first compensation parameters are, for example, [C1, C2, C3, . The M first compensation parameters in the compensation parameter matrix can be arranged according to the array of M sub-pixels shown in Figure 1, that is, the elements of the compensation parameter matrix correspond to the sub-pixels shown in Figure 1 one by one, and the compensation parameter matrix is, for example, as follows Shown:

For example, if the first four sub-pixels in the first row shown in Figure 1 are Px11, Px12, Px13 and Px14 respectively, and the first four elements in the first row of the compensation parameter matrix are respectively Ce11, Ce12, Ce13 and Ce14, then Ce11, Ce12 , Ce13, and Ce14 are the first compensation parameters corresponding to Px11, Px12, Px13, and Px14, respectively. For example, if C1 among the K first compensation parameters corresponds to sub-pixels Px11, Px12, Px13 and Px14, then Ce11, Ce12, Ce13 and Ce14 are all equal to C1.

For example, in some embodiments, for each sub-pixel block, weighted average processing may be performed on a plurality of first compensation parameters corresponding to the sub-pixel block in the compensation parameter matrix, and the processing result may be used as the corresponding Area compensation parameters. For example, as shown in Figure 1, the first two sub-pixels Px11 and Px12 of the first row and the first two sub-pixels Px21 and Px22 of the second row form a sub-pixel block, then the first two elements of the first row are searched from the compensation parameter matrix Ce11 and Ce12 and the first two elements Ce21 and Ce22 in the second row, and then Ce11, Ce12, Ce21 and Ce22 are weighted and averaged, and the result of the weighted average can be used as the area compensation parameter corresponding to the sub-pixel block.

For example, in other embodiments, for each sub-pixel block, the compensation parameter with the highest frequency among the plurality of first compensation parameters corresponding to the sub-pixel block in the compensation parameter matrix is taken as the area corresponding to the sub-pixel block compensation parameters. For example, following the above example, for the above sub-pixel block composed of Px11, Px12, Px21 and Px22, the compensation parameter with the highest frequency among Ce11, Ce12, Ce21 and Ce22 can be used as the area compensation parameter corresponding to the sub-pixel block. If there are two or more first compensation parameters with the highest parallel frequency among the plurality of first compensation parameters, for example, the frequencies of Ce11, Ce12, Ce21 and Ce22 are 3, 1, 3, 2 respectively, and the parallel frequencies of Ce11 and Ce21 are Highest. For this case, in one example, one of the two or more first compensation parameters paralleled can be randomly selected as the area compensation parameter; in another example, other methods can be used to determine the area compensation parameter, for example The above-mentioned weighted average method or the following method of taking the median are adopted.

For example, in some other embodiments, for each sub-pixel block, the median of the plurality of first compensation parameters corresponding to the sub-pixel block in the compensation parameter matrix is taken as the area compensation parameter corresponding to the sub-pixel block . For example, following the above example, for the above sub-pixel block composed of Px11, Px12, Px21 and Px22, the median compensation parameters of Ce11, Ce12, Ce21 and Ce22 can be used as the area compensation parameters corresponding to the sub-pixel block. If the plurality of first compensation parameters are arranged according to their numerical values, and if there are two values in the middle position, the average value of the two middle values can be taken as the area compensation parameter. For example, if the values of Ce11, Ce12, Ce21 and Ce22 are 1, 2, 3 and 4 respectively, then the average value of 2 and 3, 2.5, can be used as the area compensation parameter.

For example, each sub-pixel in each sub-pixel block shares one area compensation parameter, that is, the area compensation parameter of each sub-pixel block corresponds to a plurality of sub-pixels included in the sub-pixel block. After obtaining the area compensation parameters corresponding to each sub-pixel block, in step S233, a plurality of area compensation parameters with different values may be extracted from the area compensation parameters of all sub-pixel blocks as a plurality of second compensation parameters. And, the sub-pixel corresponding to each second compensation parameter can be obtained.

For example, an index table may be prestored, and the index table may include correspondences between multiple index values and multiple second compensation parameters. After the multiple second compensation parameters are obtained, the index table can be searched to obtain the corresponding multiple index values and the sub-pixel corresponding to each index value. The plurality of index values and the corresponding relationship between the plurality of index values and the M sub-pixels are stored, so as to subsequently call the stored plurality of index values and the corresponding relationship between the M sub-pixels to perform a compensation operation on the display panel. For example, the plurality of index values, the corresponding relationship between the plurality of index values and M sub-pixels, and the index table can be combined to generate a code stream and burned into the driver chip of the display panel. After the display panel is turned on, the code stream can be called. The index values, the corresponding relationship between the plurality of index values and the M sub-pixels, and the index table can be analyzed to obtain the compensation parameters corresponding to each sub-pixel, so as to compensate the sub-pixels based on the corresponding compensation parameters.

For example, in some other embodiments, each of the K first compensation parameters may have a corresponding index value. For example, after obtaining the K first compensation parameters, it may first be based on the K first compensation parameters A compensation parameter searches the index table to obtain the corresponding K index values. Step S232 may include: based on the expected compression ratio, block the M sub-pixels to obtain a plurality of sub-pixel blocks; generate an index matrix based on the K index values corresponding to the K first compensation parameters respectively; based on the index matrix , generating a plurality of region index values respectively corresponding to the plurality of sub-pixel blocks; based on the plurality of region index values, obtaining the plurality of second compensation parameters. For example, the index matrix includes M index values respectively corresponding to the M sub-pixels, for example, the index value corresponding to each sub-pixel is the index value of the compensation parameter corresponding to the sub-pixel.

For example, according to the correspondence between K first compensation parameters and M sub-pixels, the correspondence between K index values and M sub-pixels can be obtained, and an index matrix is formed according to the correspondence between K index values and M sub-pixels. For example, the M index values in the index matrix can be arranged in the array of M sub-pixels shown in Figure 1, that is, the elements of the index matrix correspond to the sub-pixels shown in Figure 1 one by one, and the index matrix is, for example, as follows:

For example, if the first four sub-pixels in the first row shown in Figure 1 are Px11, Px12, Px13 and Px14 respectively, and the first four elements in the first row of the index matrix are respectively Id11, Id12, Id13 and Id14, then Id11, Id12, Id13 and Id14 are index values corresponding to Px11, Px12, Px13 and Px14, respectively. For example, the K index values are [I1, I2, I3, .

For example, the operation of dividing M sub-pixels into blocks may refer to the relevant description above, which will not be repeated here. After the sub-pixel blocks are obtained, for each sub-pixel block, a corresponding region index value can be calculated. For example, for each sub-pixel block, weighted average processing may be performed on multiple index values corresponding to the sub-pixel block in the index matrix, and the processing result may be used as an area index value corresponding to the sub-pixel block. Alternatively, for each sub-pixel block, the index value with the highest frequency among multiple index values corresponding to the sub-pixel block in the index matrix may be taken as the region index value corresponding to the sub-pixel block. Alternatively, for each sub-pixel block, the median of multiple index values corresponding to the sub-pixel block in the index matrix may be taken as the region index value corresponding to the sub-pixel block.

For example, each sub-pixel in each sub-pixel block shares an area index value, that is, the area index value of each sub-pixel block corresponds to a plurality of sub-pixels included in the sub-pixel block. After obtaining the region index value corresponding to each sub-pixel block, in step S233, a plurality of region index values with different values can be extracted from the region index values of all sub-pixel blocks, and by searching the index table, obtain the The plurality of compensation parameters corresponding to the plurality of region index values with different values are used as the plurality of second compensation parameters.

For example, multiple index values with different values and the corresponding relationship between each index value and the sub-pixels can be stored, so that the stored multiple index values and the corresponding relationship with the M sub-pixels can be called subsequently to perform an operation on the display panel. compensation operation.

According to the compensation parameter determination method of the disclosed embodiment, the luminance of each sub-pixel of the display panel at the sampling gray scale can be composed into a multi-dimensional vector, and the multi-dimensional vector can be classified according to a certain compression ratio to achieve a certain degree of data compression.

According to the method for determining compensation parameters in the embodiments of the present disclosure, after the brightness is classified, the compensation values of each sub-pixel at different gray scales can be further classified, and the classified index values can be used to replace the compensation values of each sub-pixel for further classification. data compression.

According to the method for determining compensation parameters in the embodiments of the present disclosure, the compensation data can be compressed while ensuring the compensation effect.

The embodiment of the present disclosure also provides a compensation method for compensating the display panel.

Fig. 8 shows a flowchart of a compensation method provided by at least one embodiment of the present disclosure.

As shown in FIG. 8, the compensation method includes steps S310-S330.

Step S310: Obtain a plurality of second compensation parameters of the display panel according to the determination method of the compensation parameters.

Step S320: Based on the plurality of second compensation parameters, generate M target compensation parameters respectively corresponding to the M sub-pixels.

Step S330: Compensate the M sub-pixels based on the M target compensation parameters.

For example, in step S310, the method for determining the compensation parameter may refer to the description of any of the above-mentioned embodiments, which will not be repeated here. For example, the method for determining compensation parameters stores multiple index values and their correspondence with M sub-pixels in the display driver chip. When executing the compensation method, multiple index values are called, and the corresponding multiple Compensation parameters, as a plurality of second compensation parameters.

For example, in step S320, according to the correspondence between the plurality of index values and the M sub-pixels, the correspondence between the plurality of second compensation parameters and the M sub-pixels can be obtained. For each sub-pixel, its corresponding second compensation parameter may be determined and used as the target compensation parameter.

For example, in step S330, the corresponding sub-pixel may be compensated according to the target compensation parameter corresponding to each sub-pixel, so that the display brightness of each sub-pixel reaches or approaches the expected brightness.

An embodiment of the present disclosure also provides a compensation parameter determining device, the compensation parameter determining device is applied to a display panel, and the display panel includes M sub-pixels arranged in an array.

Fig. 9 shows a schematic block diagram of an apparatus 400 for determining a compensation parameter provided by at least one embodiment of the present disclosure.

For example, as shown in FIG. 9 , the determination device 400 includes an acquisition module 410 , a combination module 420 and a determination module 430 . These components are interconnected by a bus system and/or other form of connection mechanism (not shown). For example, these modules may be implemented by hardware (such as circuit) modules, software modules, or any combination of the two, and the following embodiments are the same as this, and will not be repeated here. For example, a central processing unit (CPU), a graphics processing unit (GPU), a tensor processing unit (TPU), a field programmable logic gate array (FPGA), or other forms of processors with data processing capabilities and/or instruction execution capabilities The processing units and corresponding computer instructions implement these units. It should be noted that the components and structure of the determining device 400 shown in FIG. 9 are only exemplary, not limiting, and the determining device 400 may also have other components and structures as required.

The acquiring unit 410 is configured to acquire M first brightness vectors respectively corresponding to the M sub-pixels. The obtaining unit 410 may, for example, execute step S210 described in FIG. 2 .

The merging module 420 is configured to perform a merging operation based on the M first luminance vectors to obtain K first compensation parameters for the M sub-pixels. The merging module 420 can, for example, execute step S220 described in FIG. 2 .

The determination module 430 is configured to determine a plurality of second compensation parameters of the display panel based on the K first compensation parameters. The determining module 430 may, for example, execute step S230 described in FIG. 2 .

For example, M is an integer greater than 1, K is an integer less than M, and the number of the plurality of second compensation parameters is less than M.

For example, the acquisition module 410, the combination module 420 and the determination module 430 may be hardware, software, firmware and any feasible combination thereof. For example, the acquisition module 410, the combination module 420 and the determination module 430 may be dedicated or general-purpose circuits, chips or devices, or may be a combination of a processor and a memory. Regarding the specific implementation form of each of the foregoing units, the embodiment of the present disclosure does not limit it.

For example, the acquisition module 410, the combination module 420 and the determination module 430 may include codes and programs stored in memory; the processor may execute the codes and programs to realize the image acquisition module 410, the combination module 420 and the determination module 430 as described above some or all of the features. For example, the acquisition module 410 , the combination module 420 and the determination module 430 may be dedicated hardware devices used to implement some or all of the functions of the acquisition module 410 , the combination module 420 and the determination module 430 described above. For example, the obtaining module 410, the merging module 420 and the determining module 430 may be a circuit board or a combination of multiple circuit boards for realizing the functions described above. In an embodiment of the present disclosure, the circuit board or a combination of multiple circuit boards may include: (1) one or more processors; (2) one or more non-transitory memories connected to the processors; and (3) Processor-executable firmware stored in memory.

It should be noted that, in the embodiment of the present disclosure, each unit of the compensation parameter determination device 400 corresponds to each step of the aforementioned compensation parameter determination method, and for the specific functions of the compensation parameter determination device 400, please refer to the Compensation Parameters The relevant description of the determination method will not be repeated here. The components and structures of the compensation parameter determining device 400 shown in FIG. 9 are exemplary rather than limiting, and the compensation parameter determining device 400 may also include other components and structures as required. The compensation parameter determining device 400 may include more or less circuits or units, and the connection relationship between the various circuits or units is not limited and may be determined according to actual needs. The specific configuration of each circuit or unit is not limited, and may be composed of analog devices according to circuit principles, or may be composed of digital chips, or in other suitable ways.

For example, the device for determining compensation parameters may further include a simulation module configured to: simulate the display panel based on the K first compensation parameters to obtain a simulation result; characterize the display panel in response to the simulation result In the first display state, adjust the second frequency threshold, and re-execute the second combining operation based on the adjusted second frequency threshold to obtain updated multiple first compensation parameters until the updated multiple A simulation result corresponding to a first compensation parameter indicates that the display panel presents a second display state; or, in response to a simulation result representing that the display panel presents a first display state, adjusting the first frequency threshold and the second frequency threshold, and re-execute the first combination operation and the second combination operation based on the adjusted first frequency threshold and the adjusted second frequency threshold to obtain a plurality of updated first compensation parameters, until the The simulation results corresponding to the updated first compensation parameters indicate that the display panel presents the second display state.

At least one embodiment of the present disclosure further provides an electronic device, which includes a processor and a memory, where one or more computer program modules are stored in the memory. One or more computer program modules are configured to be executed by the processor for realizing the above method for determining compensation parameters. The electronic device can reduce the number of compensation parameters to be smaller than the number of sub-pixels by using the merging operation to achieve a certain degree of data compression, thereby reducing the amount of calculation and storage required for brightness compensation.

Fig. 10 is a schematic block diagram of an electronic device provided by some embodiments of the present disclosure. As shown in FIG. 10 , the electronic device 500 includes a processor 510 and a memory 520 . Memory 520 stores non-transitory computer readable instructions (eg, one or more computer program modules). The processor 510 is configured to execute non-transitory computer-readable instructions, and when the non-transitory computer-readable instructions are executed by the processor 510, one or more steps in the method for determining the compensation parameter described above are executed. The memory 520 and the processor 510 may be interconnected by a bus system and/or other forms of connection mechanisms (not shown). For the specific implementation of each step of the method for determining the compensation parameter and related explanations, refer to the above-mentioned embodiment of the method for determining the compensation parameter, and repeated descriptions will not be repeated here.

It should be noted that the components of the electronic device 500 shown in FIG. 10 are exemplary rather than limiting, and the electronic device 500 may also have other components according to actual application requirements.

For example, the processor 510 and the memory 520 may communicate with each other directly or indirectly.

For example, processor 510 and memory 520 may communicate over a network. A network may include a wireless network, a wired network, and/or any combination of a wireless network and a wired network. The processor 510 and the memory 520 may also communicate with each other through a system bus, which is not limited in the present disclosure.

For example, the processor 510 and the memory 520 may be set at the server (or cloud).

For example, the processor 510 may control other components in the electronic device 500 to perform desired functions. For example, the processor 510 may be a central processing unit (CPU), a graphics processing unit (GPU), or other forms of processing units having data processing capabilities and/or program execution capabilities. For example, the central processing unit (CPU) may be of X86 or ARM architecture and the like. The processor 510 may be a general-purpose processor or a special-purpose processor, and may control other components in the electronic device 500 to perform desired functions.

For example, memory 520 may include any combination of one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and/or nonvolatile memory. The volatile memory may include random access memory (RAM) and/or cache memory (cache), etc., for example. Non-volatile memory may include, for example, read only memory (ROM), hard disks, erasable programmable read only memory (EPROM), compact disc read only memory (CD-ROM), USB memory, flash memory, and the like. One or more computer program modules can be stored on the computer-readable storage medium, and the processor 510 can run one or more computer program modules to realize various functions of the electronic device 500 . Various application programs, various data, and various data used and/or generated by the application programs can also be stored in the computer-readable storage medium.

For example, in some embodiments, the electronic device 500 may be a mobile phone, a tablet computer, a notebook computer, a server, and the like.

For example, the electronic device 500 may be connected to the display panel in a wired or wireless manner, so as to perform data interaction with the display panel.

For example, the electronic device 500 may be connected to a shooting device such as a camera in a wired or wireless manner, so that after the shooting device captures a display image of the display panel, the display image is sent to the electronic device 500, and the electronic device 500 , get the display brightness, and then get the brightness vector.

For example, the electronic device 500 may have a touch function, that is, the electronic device 500 may be a touch device.

It should be noted that, in the embodiment of the present disclosure, for the specific functions and technical effects of the electronic device 500, reference may be made to the above description about the method for determining the compensation parameter, which will not be repeated here.

Fig. 11 is a schematic block diagram of another electronic device provided by some embodiments of the present disclosure. The electronic device 600 is, for example, suitable for implementing the compensation parameter determination method provided by the embodiment of the present disclosure. The electronic device 600 may be a terminal device or the like. It should be noted that the electronic device 600 shown in FIG. 11 is only an example, which does not impose any limitation on the functions and application scope of the embodiments of the present disclosure.

As shown in FIG. 11 , the electronic device 600 may include a processing device (such as a central processing unit, a graphics processing unit, etc.) 610, which may be randomly accessed according to a program stored in a read-only memory (ROM) 620 or loaded from a storage device 680. Various appropriate actions and processes are executed by programs in the memory (RAM) 630 . In the RAM 630, various programs and data necessary for the operation of the electronic device 600 are also stored. The processing device 610, the ROM 620, and the RAM 630 are connected to each other through a bus 640. An input/output (I/O) interface 650 is also connected to bus 640 .

Typically, the following devices can be connected to the I/O interface 650: input devices 660 including, for example, a touch screen, touchpad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; including, for example, a liquid crystal display (LCD), speaker, vibration an output device 670 such as a computer; a storage device 680 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 690 . The communication means 690 may allow the electronic device 600 to perform wireless or wired communication with other electronic devices to exchange data. Although FIG. 11 shows electronic device 600 having various means, it should be understood that it is not required to implement or have all of the means shown, and electronic device 600 may alternatively implement or have more or fewer means.

For example, according to the embodiments of the present disclosure, the method for determining the compensation parameters described above can be implemented as a computer software program. For example, the embodiments of the present disclosure include a computer program product, which includes a computer program carried on a non-transitory computer readable medium, where the computer program includes program codes for executing the method for determining the compensation parameter described above. In such an embodiment, the computer program may be downloaded and installed from a network via communication means 690, or installed from storage means 680, or installed from ROM 620. When the computer program is executed by the processing device 610, the functions defined in the method for determining the compensation parameter provided by the embodiment of the present disclosure can be realized.

At least one embodiment of the present disclosure also provides a computer-readable storage medium, the computer-readable storage medium stores non-transitory computer-readable instructions, and when the non-transitory computer-readable instructions are executed by a computer, the above-mentioned How to determine compensation parameters. Using the computer-readable storage medium, the merging operation can be used to reduce the number of compensation parameters to less than the number of sub-pixels, achieve a certain degree of data compression, and further reduce the amount of calculation and storage required for brightness compensation.

Fig. 12 is a schematic diagram of a storage medium provided by some embodiments of the present disclosure. As shown in FIG. 12 , storage medium 700 stores non-transitory computer readable instructions 710 . For example, when the non-transitory computer-readable instructions 710 are executed by a computer, one or more steps in the method for determining compensation parameters according to the above-mentioned are performed.

For example, the storage medium 700 can be applied to the above-mentioned electronic device 500 . For example, the storage medium 700 may be the memory 520 in the electronic device 500 shown in FIG. 10 . For example, for relevant descriptions about the storage medium 700, reference may be made to the corresponding description of the memory 520 in the electronic device 500 shown in FIG. 10 , which will not be repeated here.

While FIG. 12 shows a computer system with various devices, it should be understood that the computer system is not required to have all of the devices shown and, instead, the computer system may have more or fewer devices.

The above description is only a preferred embodiment of the present disclosure and an illustration of the applied technical principles. Those skilled in the art should understand that the disclosure scope involved in this disclosure is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, but also covers the technical solutions formed by the above-mentioned technical features or Other technical solutions formed by any combination of equivalent features. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this disclosure.

In addition, while operations are depicted in a particular order, this should not be understood as requiring that the operations be performed in the particular order shown or performed in sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while the above discussion contains several specific implementation details, these should not be construed as limitations on the scope of the disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are merely example forms of implementing the claims.

For this disclosure, the following points need to be explained:

(1) Embodiments of the present disclosure The drawings only relate to the structures involved in the embodiments of the present disclosure, and other structures may refer to common designs.

(2) In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

The above description is only a specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims (22)

1. The method for determining the compensation parameters is applied to a display panel, wherein the display panel comprises M sub-pixels arranged in an array, and the method comprises the following steps:

obtaining M first brightness vectors corresponding to the M sub-pixels respectively;

based on the M first brightness vectors, carrying out merging operation to obtain K first compensation parameters about the M sub-pixels;

Determining a plurality of second compensation parameters of the display panel based on the K first compensation parameters;

wherein M is an integer greater than 1, K is a positive integer less than M, and the number of the plurality of second compensation parameters is less than M.

2. The determining method according to claim 1, wherein the first luminance vector corresponding to each of the M sub-pixels includes N display luminances of each of the M sub-pixels at N gray scales, respectively.

3. The determination method according to claim 1, wherein each of the K first compensation parameters is not equal;

each of the K first compensation parameters corresponds to at least one of the M sub-pixels.

4. The determination method according to any one of claims 1 to 3, wherein the merging operation includes a first merging operation,

based on the M first luminance vectors, performing a merging operation to obtain K first compensation parameters for the M sub-pixels, including:

calculating M vector modular lengths based on the M first brightness vectors;

the first merging operation is carried out on the M vector modular lengths so as to merge the M vector modular lengths into P vector modular lengths;

Determining P second luminance vectors based on the P vector modulo lengths, wherein each of the P second luminance vectors corresponds to at least one of the M sub-pixels;

generating the K first compensation parameters based on the P second brightness vectors;

wherein P is a positive integer less than M.

5. The determination method according to claim 4, wherein the values of the P vector modulo lengths are each not equal.

6. The determining method according to claim 4, wherein the first merging operation is performed on the M vector modulo lengths to merge the M vector modulo lengths into P vector modulo lengths, including:

frequency statistics is carried out on the M vector modular lengths so as to determine Q vector modular lengths with different median values in the M vector modular lengths and frequencies corresponding to the Q vector modular lengths respectively, wherein Q is a positive integer smaller than M;

sorting the Q vector modular lengths based on the values of the Q vector modular lengths to obtain a first sequence;

and carrying out the first merging operation on the Q vector modular lengths in the first sequence based on a first frequency threshold value to obtain the P vector modular lengths.

7. The determination method of claim 6, wherein the first merging operation includes a first sub-merging operation,

Performing the first merging operation on the Q vector modular lengths in the first sequence, including:

performing at least one of the first sub-merging operations on the Q vector modular lengths and updating the first sequence until the number of vector modular lengths contained in the updated first sequence is not greater than a first number threshold,

the P vector modular lengths comprise vector modular lengths included in the updated first sequence obtained by the last first sub-merging operation.

8. The determination method of claim 7, wherein each of the first sub-merging operations comprises:

determining a first vector modulo length for frequencies in the first sequence less than the first frequency threshold;

determining one vector modular length adjacent to the first vector modular length in the first sequence as a second vector modular length;

combining the first vector modular length with the second vector modular length to obtain a combined vector modular length;

determining the frequency of the combined vector modulo length based on the frequency of the first vector modulo length and the frequency of the second vector modulo length;

deleting the first vector modulo length and the second vector modulo length from the first sequence, and adding the combined vector modulo length to the first sequence to obtain an updated first sequence corresponding to the first sub-combining operation, wherein the updated first sequence corresponding to the first sub-combining operation includes the combined vector modulo length and an uncombined vector modulo length in the first sequence;

If the number of vector modular lengths contained in the updated first sequence corresponding to the first sub-merging operation is greater than the first number threshold, executing the next first sub-merging operation based on the updated first sequence corresponding to the first sub-merging operation;

and if the number of vector modular lengths contained in the updated first sequence corresponding to the first sub-merging operation is not greater than the first number threshold, taking a plurality of vector modular lengths contained in the updated first sequence corresponding to the first sub-merging operation as the P vector modular lengths.

9. The determination method of claim 6, wherein the merging operation further comprises a second merging operation,

generating the K first compensation parameters based on the P second luminance vectors, including:

obtaining a brightness matrix based on the P second brightness vectors, wherein the brightness matrix comprises M second brightness vectors corresponding to the M sub-pixels respectively;

generating M initial compensation parameters based on the brightness matrix;

and carrying out the second merging operation on the M initial compensation parameters to generate the K first compensation parameters.

10. The determining method of claim 9, wherein performing the second combining operation on the M initial compensation parameters to generate the K first compensation parameters includes:

Counting the frequency of the M initial compensation parameters to determine R initial compensation parameters with different values in the M initial compensation parameters and the frequency corresponding to the R initial compensation parameters respectively, wherein R is a positive integer smaller than M;

sorting the R initial compensation parameters based on the values of the R initial compensation parameters to obtain a second sequence;

performing the second combining operation on the R initial compensation parameters in the second ordering based on a second frequency threshold to obtain the K first compensation parameters,

wherein the second merging operation comprises a second sub-merging operation,

performing the second combining operation on the R initial compensation parameters in the second ordering includes: performing the second sub-combining operation at least once on the R initial compensation parameters and updating the second sequence;

the K first compensation parameters include initial compensation parameters included in the updated second sequence obtained by the last second sub-merging operation.

11. The determining method of claim 10, wherein each of the second sub-merging operations comprises:

determining a first initial compensation parameter for frequencies in the second sequence that are less than the second frequency threshold;

Determining one initial compensation parameter adjacent to the first initial compensation parameter in the second sequence as a second initial compensation parameter;

combining the first initial compensation parameter and the second initial compensation parameter to obtain a combined initial compensation parameter;

determining the frequency of the combined initial compensation parameter based on the frequency of the first initial compensation parameter and the frequency of the second initial compensation parameter;

deleting the first initial compensation parameter and the second initial compensation parameter from the second sequence, adding the combined initial compensation parameter to the second sequence to obtain an updated second sequence corresponding to the second sub-combining operation,

the updated second sequence corresponding to the second sub-merging operation includes the initial compensation parameters after merging and initial compensation parameters not merged in the second sequence.

12. The determination method according to any one of claims 1 to 3, wherein the merging operation includes a third merging operation,

based on the M first luminance vectors, performing a merging operation to obtain K first compensation parameters for the M sub-pixels, including:

Obtaining corresponding M initial compensation parameters based on the M first brightness vectors;

and carrying out the third merging operation on the M initial compensation parameters to generate the K first compensation parameters.

13. The determination method according to claim 10, further comprising:

simulating the display panel based on the K first compensation parameters to obtain a simulation result;

responding to the simulation result to represent the display panel to present a first display state, adjusting the second frequency threshold, and re-executing the second merging operation based on the adjusted second frequency threshold to obtain a plurality of updated first compensation parameters until the simulation result corresponding to the plurality of updated first compensation parameters represents the display panel to present a second display state; or,

and responding to the simulation result to represent the display panel to present a first display state, adjusting the first frequency threshold and the second frequency threshold, and re-executing the first merging operation and the second merging operation based on the adjusted first frequency threshold and the adjusted second frequency threshold to obtain a plurality of updated first compensation parameters until the simulation result corresponding to the plurality of updated first compensation parameters represents the display panel to present a second display state.

14. The determination method according to claim 1, wherein determining a plurality of second compensation parameters of the display panel based on the K first compensation parameters includes:

based on the expected compression multiplying power, partitioning the M sub-pixels to obtain a plurality of sub-pixel blocks;

determining a plurality of regional compensation parameters corresponding to the plurality of sub-pixel blocks respectively based on the K first compensation parameters;

and obtaining the plurality of second compensation parameters based on the plurality of regional compensation parameters.

15. The determining method according to claim 14, wherein determining a plurality of region compensation parameters respectively corresponding to the plurality of sub-pixel blocks based on the K first compensation parameters includes:

generating a compensation parameter matrix based on the K first compensation parameters, wherein the compensation parameter matrix comprises M first compensation parameters respectively corresponding to the M sub-pixels;

and generating the plurality of regional compensation parameters respectively corresponding to the plurality of sub-pixel blocks based on the compensation parameter matrix.

16. The determination method according to claim 1, wherein each of the K first compensation parameters corresponds to an index value;

Determining a plurality of second compensation parameters of the display panel based on the K first compensation parameters, including:

based on the expected compression multiplying power, partitioning the M sub-pixels to obtain a plurality of sub-pixel blocks;

generating an index matrix based on K index values respectively corresponding to the K first compensation parameters, wherein the index matrix comprises M index values respectively corresponding to the M sub-pixels;

generating a plurality of region index values respectively corresponding to the plurality of sub-pixel blocks based on the index matrix;

and obtaining the plurality of second compensation parameters based on the plurality of region index values.

17. The determining method according to claim 16, wherein the index value corresponding to each sub-pixel is an index value of the compensation parameter corresponding to the sub-pixel.

18. The determining method according to claim 15, wherein generating a plurality of region compensation parameters respectively corresponding to the plurality of sub-pixel blocks based on the compensation parameter matrix includes: for each of the sub-pixel blocks,

performing weighted average processing on a plurality of first compensation parameters corresponding to the sub-pixel blocks in the compensation parameter matrix, and taking the processing result as the regional compensation parameters corresponding to the sub-pixel blocks; or alternatively

Taking the compensation parameter with highest frequency in a plurality of first compensation parameters corresponding to the sub-pixel blocks in the compensation parameter matrix as the regional compensation parameter corresponding to the sub-pixel blocks; or alternatively

And taking the median of a plurality of first compensation parameters corresponding to the sub-pixel blocks in the compensation parameter matrix as the region compensation parameter corresponding to the sub-pixel blocks.

19. A compensation method for compensating a display panel, wherein the display panel includes M sub-pixels arranged in an array, comprising:

the determination method according to any one of claims 1 to 18, obtaining a plurality of second compensation parameters of the display panel;

generating M target compensation parameters corresponding to the M sub-pixels respectively based on the second compensation parameters;

and compensating the M sub-pixels based on the M target compensation parameters.

20. A compensation parameter determining device applied to a display panel, wherein the display panel comprises M sub-pixels arranged in an array, the device comprising:

the acquisition module is configured to acquire M first brightness vectors corresponding to the M sub-pixels respectively;

a combining module configured to perform a combining operation based on the M first luminance vectors to obtain K first compensation parameters for the M sub-pixels;

A determining module configured to determine a plurality of second compensation parameters of the display panel based on the K first compensation parameters;

wherein M is an integer greater than 1, K is an integer less than M, and the number of the plurality of second compensation parameters is less than M.

21. An electronic device, comprising:

a processor;

a memory storing one or more computer program modules;

wherein the one or more computer program modules are configured to be executed by the processor for implementing the method of determining the compensation parameter of any one of claims 1-18 and/or the method of compensating of claim 19.

22. A computer readable storage medium having stored non-transitory computer readable instructions which when executed by a computer implement the method of determining the compensation parameter of any one of claims 1-18 and/or the method of compensating of claim 19.

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