CN116682378B - Method, system and device for compensating display crosstalk - Google Patents
Method, system and device for compensating display crosstalk Download PDFInfo
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
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- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
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Abstract
The invention discloses a method, a system and a device for compensating display crosstalk, wherein the method for compensating the display crosstalk comprises the following steps: counting the input data row by row to obtain a row voltage level statistical value and registering the row voltage level statistical value; respectively taking a plurality of adjacent lines of the current line as reference lines, and judging whether the line voltage level statistical value of each reference line and the line voltage level statistical value of the current line meet a preset crosstalk compensation condition or not; acquiring a crosstalk compensation value of the reference row to the current row according to the row voltage level statistical value of the reference row and the row voltage level statistical value of the current row; and superposing the crosstalk compensation value on the input data to obtain a final crosstalk compensation result. The invention can count and compensate dynamic pictures without being limited to fixed positions and fixed pictures, can compensate the crosstalk problem of the traditional driving framework, can also compensate the novel driving framework, and can eliminate the inconsistent crosstalk compensation of different displays caused by process fluctuation.
Description
Technical Field
The invention belongs to the technical field of display drive integrated circuit design, and particularly relates to a method, a system and a device for compensating display crosstalk.
Background
Self-luminous displays such as AMOLED are gradually applied to high-end series of all display products such as vehicle-mounted display, consumer electronics TV, NB, pad and mobile phones with high contrast, wide color gamut and low energy consumption of specific use scenes.
In recent years, in order to further reduce the cost of the panel, reduce the source lines for driving, and realize a higher refresh rate of the panel, panel manufacturers sequentially push out new driving architectures such as MUX 1:2, MUX 1:4, etc., as shown in fig. 1A and 1B, that is, 1 source line drives multiple data lines, and the driving is realized by means of MUX switch gating. However, under these new driving architectures, crosstalk phenomenon caused by capacitive coupling in the pixel charging process is more prominent, as shown in fig. 2, at the bright and dark border of the picture, because of crosstalk caused by capacitive coupling, unnecessary brightness rise or fall problems are generated, and in practical application, crosstalk of different degrees including UI interface, search box and the like can occur, which seriously affects consumer experience.
Fig. 3 shows a timing chart of an AMOLED display pixel driving circuit, when Source charges, when voltage changes, ELVDD jitter caused by parasitic capacitance coupling, the excessive jitter causes the voltage on Source and the storage voltage of pixel capacitance to be inconsistent with the expected, and the incorrect voltage driving causes the luminance to be inconsistent with the expected, namely, a crosstalk phenomenon, particularly at the black-white handover position, the crosstalk phenomenon is serious because the Source voltage is larger, and meanwhile, the ELVDD voltage jitter recovery time may exceed one row charging time, so that the crosstalk phenomenon is conducted downwards for several rows.
In the prior art, the above problems are solved by several methods:
1) Scheme one: as in patent publication CN109584798a, the compensation method mainly aims at crosstalk caused by the load difference of the Gate region, and the compensation method comprises two ways, namely, the first way is to adjust the length of Gate Clock, and the time of Gate Clock is lengthened for the crosstalk region, so that charging is more complete, and the second way is to directly perform Data proportional adjustment for crosstalk;
2) Scheme II: for crosstalk caused by source voltage jump, invalid data is filled in an invalid display area, so that the up-and-down voltage change of a source line is reduced, and the crosstalk is reduced, as in the patent of equipment and method for driving a display panel with publication number CN 111028751A;
3) Scheme III: for example, in the patent of "display device" with publication number CN112863416a, referring to load data of three rows, the crosstalk amount is estimated by the load difference of the front row and the rear row, and only the crosstalk amount needs to be supplemented to achieve the target brightness of the current row.
However, the solutions of the prior art suffer from several drawbacks:
1) Scheme one: the driving clock is adjusted, the time sequence design control difficulty is increased, meanwhile, compensation can be carried out only for the load of a fixed area, and if the dynamic change of the load is supported, the dynamic time sequence design difficulty is greatly increased; by means of compensating the data proportion, compensation can be performed only for fixed data, and crosstalk with different degrees caused by dynamic data change cannot be compensated;
2) Scheme II: the Dummy data is inserted through the invalid area, so that the voltage of two rows is reduced, compensation can be performed only for a fixed position, and the Dummy cannot be inserted for crosstalk of the effective display area, so that compensation cannot be performed;
3) Scheme III: referring to the multi-line information, crosstalk caused by a dynamic picture can be compensated, but the scheme does not consider different crosstalk caused by a MUX switch, but can only be used for a traditional driving scheme, and cannot be effectively compensated for the architecture of MUX1:2 or MUX1:4 and the like.
Therefore, how to perform statistics and compensation on dynamic pictures without being limited to fixed positions and fixed pictures, and not only can compensate the crosstalk problem of the traditional driving framework, but also can compensate for the novel driving framework, and meanwhile, the problem that crosstalk compensation of different displays is inconsistent due to process fluctuation is solved.
Disclosure of Invention
Accordingly, one of the objectives of the present invention is to provide a method for compensating display crosstalk, which is not limited to fixed positions and fixed frames, can perform statistics and compensation on dynamic frames, can compensate the crosstalk problem of the conventional driving architecture, can also compensate for the novel driving architecture, and can eliminate the crosstalk compensation inconsistency caused by process fluctuation of different displays.
It is still another object of the present invention to provide a system capable of implementing the above method of display crosstalk compensation.
It is still another object of the present invention to provide an apparatus capable of implementing the above-mentioned method of compensating for display crosstalk.
To achieve the above object, a first aspect of the present invention provides a method for compensating display crosstalk, including the steps of:
step S1: counting the input data row by row to obtain a row voltage level statistical value and registering the row voltage level statistical value;
Step S2: respectively taking a plurality of adjacent lines of the current line as reference lines, judging whether the line voltage level statistical value of each reference line and the line voltage level statistical value of the current line meet a preset crosstalk compensation condition, if so, executing a step S3 by the reference line, and if not, not executing the step S3 on the reference line;
Step S3: acquiring a crosstalk compensation value of the reference row to the current row according to the row voltage level statistical value of the reference row and the row voltage level statistical value of the current row;
step S4: and superposing the crosstalk compensation value on the input data to obtain a final crosstalk compensation result.
Preferably, step S1 is specifically:
Step S1.1: carrying out line-by-line histogram statistics on sub-pixel gray scale values of input data to obtain corresponding histogram distribution;
Step S1.2: and according to the histogram distribution, different voltage level weights are distributed to count values of different sub-pixel gray scale value ranges, and the row voltage level statistic values are obtained through accumulation and are registered.
Preferably, step S1 is specifically:
calculating row voltage level statistic values for input data row by row according to a formula (1) and registering;
Wherein: APL is a row voltage level statistic value, alpha r、αg、αb is a voltage level weight corresponding to the sub-pixels R/G/B respectively, R L、GL、BL is a sub-pixel voltage value of the sub-pixel R/G/B corresponding to the pixel of the L column respectively, and h is a column number maximum value.
Preferably, in step S1, the row voltage level statistics include a number of row voltage level grouping statistics, where the number of row voltage level grouping statistics includes a row first grouping statistics and a row second grouping statistics, and the voltage level weight of the input data corresponding to at least one subpixel in the row first grouping statistics and the voltage level weight in the row second grouping statistics are different in the process of row-by-row statistics.
Preferably, the current row is an nth row, and the rows adjacent to the current row include an mth row, M e [ M 1,M2],M1<N<M2 ].
Preferably, M 1＝N-1,M2 =n+1.
Preferably, in step S3, a crosstalk compensation value of the reference row to the current row is obtained according to the row voltage level statistical value of the reference row and the row voltage level statistical value of the current row, which specifically includes: and acquiring a crosstalk compensation value of the reference row to the current row through a two-dimensional lookup table according to the row voltage level statistical value of the reference row and the row voltage level statistical value of the current row.
Preferably, the obtaining, by using a two-dimensional lookup table, a crosstalk compensation value of the reference line to the current line includes directly looking up a crosstalk compensation value corresponding to the line voltage level statistics of the reference line and the line voltage level statistics of the current line, and calculating, by using an interpolation method, a crosstalk compensation value corresponding to the line voltage level statistics of the reference line and the line voltage level statistics of the current line.
Preferably, in step S3, a crosstalk compensation value of the reference row to the current row is obtained according to the row voltage level statistical value of the reference row and the row voltage level statistical value of the current row, which specifically includes: and according to the line voltage level statistical value of the reference line and the line voltage level statistical value of the current line, acquiring a crosstalk compensation value of the reference line to the current line through a fitting formula, wherein the acquiring method of parameters of the fitting formula is a brightness fitting method.
Preferably, the method for acquiring the data in the two-dimensional lookup table is a brightness fitting method.
Preferably, the brightness fitting method includes steps S3.1 to S3.4:
step S3.1: dividing one area of a display screen into a foreground area, and dividing other areas into background areas to represent crosstalk influence of a reference row on a current row, wherein the foreground area is adjacent to one row of the background area in the current row, and the reference row is preset one row according to a circuit structure of the display screen;
step S3.2: presetting foreground display data of a foreground region, setting a background region as a plurality of groups of different background display data codes, displaying on the display screen and photographing;
step S3.3: acquiring background area brightness Lv ctc of the current line after crosstalk in the photo obtained in the step S3.2, and fitting background display data Code according to a formula (2) to obtain the brightness fitting parameter;
Lvctc＝α*Codeb+c*Code+d (2):
Wherein a, b, c, d are the luminance fitting parameters;
step S3.4: and calculating a target data value Code ' corresponding to each background display data Code according to the formula (2), substituting the target data value Code ' into the post-crosstalk brightness Lv ctc obtained by the formula (2) to be equal to the target brightness level of the background area, and calculating a crosstalk compensation value delta Code M according to the difference between the target data value Code ' and the background display data Code.
Preferably, step S3.3 further comprises: the luminance level of the crosstalk-free portion of the background area in the photograph obtained in step S3.2 is obtained as the target luminance level described in step S3.4.
Preferably, in step S4, the final crosstalk compensation result is obtained after the crosstalk compensation value is superimposed on the input data, which specifically includes: calculating a final crosstalk compensation result Code out corresponding to each sub-pixel of the nth row according to the formula (3) or the formula (4);
Wherein Δcode M is a crosstalk compensation value corresponding to the mth row of the reference row, code in is the input data corresponding to the sub-pixels, and ratio is a corresponding crosstalk compensation weight preset according to the circuit structure of the display screen.
Preferably, the crosstalk compensation weight includes a row direction weight, and the row direction weight is preset according to a circuit structure relationship between the reference row and the current row in the display screen.
Preferably, the crosstalk compensation weight includes a column direction weight, and the column direction weight is preset according to a column position of the sub-pixel corresponding to the input data in the circuit structure of the display screen.
Preferably, in step S1, the row voltage level statistics value includes a plurality of row voltage level grouping statistics values, where the plurality of row voltage level grouping statistics values includes a row first grouping statistics value and a row second grouping statistics value, and a voltage level weight of the input data corresponding to at least one subpixel in the row first grouping statistics value and a voltage level weight in the row second grouping statistics value are different in a process of counting row by row;
The crosstalk compensation values corresponding to the reference rows comprise a plurality of grouped crosstalk compensation values, the grouped crosstalk compensation values comprise first crosstalk compensation values and second crosstalk compensation values, the first crosstalk compensation values correspond to row first grouping statistical values of the reference rows, and the second crosstalk compensation values correspond to row second grouping statistical values of the reference rows;
The crosstalk compensation weight comprises a plurality of grouping weights, the grouping weights comprise a first grouping weight and a second grouping weight, the first grouping weight corresponds to a first crosstalk compensation value, the second grouping weight corresponds to a second crosstalk compensation value, the first grouping weight and the second grouping weight corresponding to each sub-pixel are preset according to the position of the sub-pixel in a circuit structure of the display screen, and the first grouping weight and the second grouping weight corresponding to at least one sub-pixel are different.
Preferably, the crosstalk compensation conditions preset in step S2 are: and the difference value between the line voltage level statistical value of the reference line and the line voltage level statistical value of the current line is greater than or equal to a preset threshold value.
Preferably, after step S4, the method further comprises:
Step S5: updating the row voltage level statistics of the current row registered in step S1 with the final crosstalk compensation result in step S4.
Preferably, after step S4, the method further comprises:
Step S6: and converting the final crosstalk compensation result in the step S4 into a sub-pixel voltage value and outputting the sub-pixel voltage value.
Preferably, the line-by-line statistics of the input data are specifically: and converting the sub-pixel gray scale value of the input data into a sub-pixel voltage value, and then carrying out row-by-row statistics on the sub-pixel voltage value.
The second aspect of the present invention provides a system capable of implementing the above-mentioned method for displaying crosstalk compensation, including a line data statistics module, a line data statistics information storage module, a line data cache module, a crosstalk compensation value calculation module, and a crosstalk compensation module, where the system is used to execute the above-mentioned method for displaying crosstalk compensation;
The line data statistics module is used for carrying out line-by-line statistics on input data to obtain a line voltage level statistical value;
the row data statistical information storage module is used for registering the row voltage level statistical value;
the data caching module is used for registering the input data;
the crosstalk compensation value calculation module is used for executing steps S2 and S3 of the method;
the crosstalk compensation module is used for executing the step S4 of the method and outputting the final crosstalk compensation result;
The data statistics module, the crosstalk compensation value calculation module and the crosstalk compensation module are sequentially connected in a signal mode;
the data statistical information storage module is respectively connected with the data statistical module and the crosstalk compensation value calculation module through signals;
the data buffer module is in signal connection with the crosstalk compensation module.
Preferably, the system further comprises a gamma conversion module for performing step S6, the gamma conversion module being in signal connection with the crosstalk compensation module.
Preferably, the system further comprises a gamma conversion module for converting sub-pixel gray scale values of the input data into sub-pixel voltage values, and the gamma conversion module is in signal connection with the data statistics module.
The third aspect of the present invention provides an apparatus capable of implementing the above-described method of displaying crosstalk compensation, comprising a line data statistics circuit, a line data statistics information memory, a line data buffer, a crosstalk compensation value calculation circuit, and a crosstalk compensation circuit, the apparatus being configured to perform the above-described method of displaying crosstalk compensation;
The line data statistics circuit is used for carrying out line-by-line statistics on input data to obtain a line voltage level statistics value;
The row data statistical information memory is used for registering the row voltage level statistical value;
the data buffer is used for registering the input data;
The crosstalk compensation value calculating circuit is used for executing steps S2 and S3 of the method;
The crosstalk compensation circuit is used for executing the step S4 of the method and outputting the final crosstalk compensation result;
the data statistics circuit, the crosstalk compensation value calculation circuit and the crosstalk compensation circuit are electrically connected in sequence;
the data statistical information memory is respectively and electrically connected with the data statistical circuit and the crosstalk compensation value calculation circuit;
the data buffer is electrically connected with the crosstalk compensation circuit.
Preferably, the apparatus further comprises a gamma conversion circuit for performing step S6, the gamma conversion circuit being electrically connected with the crosstalk compensation circuit.
Preferably, the method for compensating display crosstalk, in particular the method for compensating display crosstalk according to claim 20, the system further comprises a gamma conversion circuit for converting sub-pixel gray scale values of the input data into sub-pixel voltage values, the gamma conversion circuit being electrically connected to the data statistics circuit.
The beneficial effects of the invention are as follows:
1) Compared with the scheme I and the scheme II in the background technology, the invention does not need to carry out different time sequence designs aiming at different areas and is not limited to a fixed position for compensation;
2) Compared with a scheme III in the background art, the invention supports driving architectures such as MUX1:2, MUX1:4 and the like, considers different crosstalk influences of different rows or different columns of a period of a plurality of pixels, and supports corresponding compensation weight adjustment;
3) The invention provides a quantifiable fitting and debugging method for supporting mass production of the method for displaying crosstalk compensation.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIGS. 1A-1B are schematic diagrams of prior art display screen circuit structures;
FIG. 2 is a schematic diagram showing crosstalk at a black-and-white interface;
FIG. 3 is a timing diagram of an AMOLED display pixel drive circuit;
fig. 4 to 8 are schematic views of a first embodiment of the present invention;
fig. 9 is a schematic diagram of a second embodiment of the present invention.
Detailed Description
One of the key points of the present invention is to provide a method for compensating display crosstalk, which is not limited to fixed positions and fixed images, can perform statistics and compensation on dynamic images, can compensate the crosstalk problem of a traditional driving architecture, can also compensate for a novel driving architecture, and can eliminate the crosstalk compensation inconsistency of different displays caused by process fluctuation.
Another core of the present invention is to provide a system capable of implementing the above method of display crosstalk compensation.
It is still another object of the present invention to provide an apparatus capable of implementing the above-mentioned method of compensating for display crosstalk.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Compared with the prior art, the invention can effectively compensate the crosstalk problem of the display, is not limited to fixed positions and fixed pictures, can carry out statistics and compensation on dynamic pictures, further, can carry out improvement and optimization on novel architectures such as MUX1:2, MUX1:4 and the like, can compensate the crosstalk problem of the traditional driving architecture, and can also carry out compensation on the novel driving architecture, and further, the invention provides a scheme for quickly adjusting the production line, can further eliminate the problem of inconsistent crosstalk compensation of different displays caused by process fluctuation, and can well solve the problem of display crosstalk. The invention is suitable for current-driven AMOLED, micro OLED, micro LED and other types of displays, and because hysteresis effect is the electrical characteristic commonly existing in transistors such as MOS/TFT, the current AMOLED display is common in mass production, and the Micro OLED and Micro LED produced in a subsequent step-by-step mass production are possible to have the same problem of coupling of power supply voltage caused by driving voltage change due to capacitive coupling caused by a driving framework, thereby influencing brightness.
Example 1
The embodiment provides a method for displaying crosstalk compensation, as shown in fig. 4, and the steps in actual operation of the embodiment are as follows:
The first step, carrying out histogram statistics on input data to obtain corresponding histogram distribution;
i.e. dividing R/G/B data into N bins, and counting based on the N bins, as shown in figure 5;
Step two, calculating to obtain a row voltage level statistical value APL based on the histogram statistical result of each row in the step one;
The overall voltage level, i.e. the row voltage level statistics APL, is determined according to equation (5) based on the distribution of the individual bins:
The contribution of the statistical count Binnum ri、Binnumgi、Binnumbi in different bins of R/G/B to the source voltage overall level is summed through different proportions, namely multiplied by the corresponding weight alpha ri、αgi、αbi, and finally added to obtain overall data and voltage level;
thirdly, storing row voltage level statistic values based on the statistic result of each row in the second step;
Step four, based on the step three, judging whether the N-1 row and the N+1 row generate crosstalk to the N row by utilizing row voltage level statistical values of the N-1 row, the N+1 row and the N row, if the difference value of the row voltage level statistical values of the N-1 row, the N+1 row and the N row is smaller than a preset threshold value, directly outputting the result, and not performing compensation, otherwise performing the next calculation;
Fifthly, based on the judgment result of the fourth step, calculating to obtain a crosstalk compensation value delta Code M generated by each row according to the row voltage level statistical value of the N-1 row, the N+1 row and the target brightness value corresponding to the row voltage level statistical value of the N row, wherein M represents the M row, and M=N-1 or N+1;
Specifically, based on row voltage level statistical values 0-255 of the Mth row and row voltage level statistical values 0-255 of the Nth row, calculating to obtain a crosstalk compensation value delta Code M generated by the Mth row on the Nth row in a two-dimensional lookup table and interpolation mode, so that the display effect of the current row under the influence of crosstalk reaches target brightness;
FIG. 6 is an example of a two-dimensional look-up table in which data may be pre-stored in the display driver chip, where the data is stored in the form of a target data value Code', and in other embodiments the crosstalk compensation value ΔCode M may be stored directly;
sixthly, multiplying the crosstalk compensation value obtained by calculation on the basis of the N-1 and N+1 rows output in the fifth step by the corresponding row crosstalk compensation weight;
Seventh, based on the sixth step, if different influences of odd-even column crosstalk are considered, multiplying corresponding column crosstalk compensation weights, and performing crosstalk compensation on the current row pixel by using the obtained result to obtain a gray scale value of a final crosstalk compensation result Code out;
Specifically, based on the N-1 row to n+1 row overall data and the row voltage level statistics, calculating a crosstalk compensation value Δcode N-1～ΔCodeN+1 for the N-th row, and calculating a final crosstalk compensation result Code out corresponding to each sub-pixel of the N-th row according to a certain crosstalk compensation weight ratio M and formula (3):
wherein Δcode M is a crosstalk compensation value corresponding to the mth row of the reference row, code in is the input data corresponding to the sub-pixels, ratio is a corresponding crosstalk compensation weight preset according to the circuit structure of the display screen, and M 1,M2 represents a range of a plurality of rows adjacent to each other under consideration, in this embodiment, M 1＝N-1,M2 =n+1;
Further, to distinguish the effects of different columns, the corresponding ratio α may be multiplied separately for different columns, that is, the ratio M in the formula (3) is replaced by the ratio MK, K represents the kth column, and ratio MK＝αM*αK,αM、αK represents the crosstalk compensation weights in the row and column directions, respectively; further, for the case where the line circuit structure of the display screen has a periodic line variation (e.g., the case of fig. 1B), ratio M or α M may be set to different values for the odd-even lines of N, respectively;
Eighth, based on the gray scale output in the seventh step, searching a corresponding endpoint and output voltage in a lookup table mode, and obtaining a voltage value corresponding to output RGB through interpolation;
Specifically, the input gray scale is converted into a corresponding voltage value, and the voltage value is converted into a corresponding source voltage through a DAC (digital-to-analog converter) to drive the display to display, so that the relation between the brightness and the gray scale corresponding to the display meets a Gamma curve;
As shown in fig. 7, the correspondence between the input gray levels 0 to 4095 and different voltages is mapped by storing the data in a look-up table and converting the input data into output voltage values by interpolating the data in a look-up table, each voltage value corresponds to a source voltage, and the source voltage drives the display of the picture, even if the picture displays the target brightness corresponding to the gray level.
The embodiment also provides a system for displaying crosstalk compensation, as shown in fig. 8, which comprises a row data statistics module 1, a row data statistics information storage module 2, a row data cache module 3, a crosstalk compensation value calculation module 4, a crosstalk compensation module 5 and a gamma conversion module 6, wherein the system is used for executing the method for displaying crosstalk compensation; the row data statistics module 1, the crosstalk compensation value calculation module 3 and the crosstalk compensation module 5 are sequentially connected in a signal mode; the row data statistical information storage module 2 is respectively connected with the row data statistical module 1 and the crosstalk compensation value calculation module 3 in a signal manner; the data buffer module 4 is in signal connection with the crosstalk compensation module 5, and the gamma conversion module 6 is in signal connection with the crosstalk compensation module 5.
The line data statistics module 1 is used for counting the line data distribution and representing the overall level of source voltage when the line scanning signal is turned on, namely, the line-by-line statistics is performed on the input data, so as to obtain a line voltage level statistical value.
The row data statistics information storage module 2 is configured to store the plurality of rows of data and voltage levels calculated by the row data statistics module, and includes further dividing the data and voltage levels of different rows and different columns in the storage period, i.e. register row voltage level statistics values.
The line data buffer module 3 is configured to store one or more lines of data, and output the line data after the line data is calculated based on the estimated crosstalk compensation value.
In a preferred embodiment, the final crosstalk compensation result Code out is considered to be sequentially output after compensation, so when calculating the crosstalk effect of the mth row data on the data of the subsequent refresh row, the influence on the subsequent refresh row can be estimated by using the output data and the voltage of the mth row after compensation, that is, the data in the row data buffer needs to be refreshed after compensation.
Typically, the cache memory unit is a Static Random Access Memory (SRAM), a Dynamic Random Access Memory (DRAM), or is implemented by other types of memory.
The crosstalk compensation value calculating module 4 is configured to calculate a crosstalk compensation value with reference to the M-th row data and the row voltage level statistic and the N-th row data and the row voltage level statistic, so as to achieve the target brightness.
The crosstalk compensation module 5 is configured to compensate the nth data based on the result of the crosstalk compensation value calculation module.
The gamma conversion module 6 is configured to convert the final crosstalk compensation result into a sub-pixel voltage value, output the sub-pixel voltage value, and convert the input gray scale into a corresponding voltage value.
The embodiment also provides a device for displaying crosstalk compensation, which comprises a line data statistics circuit, a line data statistics information memory, a line data buffer, a crosstalk compensation value calculation circuit, a crosstalk compensation circuit and a gamma conversion circuit, wherein the device is used for executing the method for displaying crosstalk compensation; the row data statistics circuit, the crosstalk compensation value calculation circuit and the crosstalk compensation circuit are electrically connected in sequence; the row data statistical information memory is respectively and electrically connected with the row data statistical circuit and the crosstalk compensation value calculation circuit; the row data buffer is electrically connected with the crosstalk compensation circuit, and the gamma conversion circuit is electrically connected with the crosstalk compensation circuit.
The row data statistics circuit is used for counting the row data distribution.
The row data statistical information memory is used for storing the multi-row data and the voltage level calculated by the row data statistical circuit.
The line data buffer is used to store one or more lines of data.
The crosstalk compensation value calculating circuit is used for calculating a crosstalk compensation value by referring to the M-th row data and the row voltage level statistical value and the N-th row data and the row voltage level statistical value so as to achieve target brightness.
The crosstalk compensation circuit is used for compensating the Nth data based on the result of the crosstalk compensation value calculation module.
The gamma conversion circuit is used for converting the final crosstalk compensation result into a sub-pixel voltage value and outputting the sub-pixel voltage value, and converting the input gray scale into a corresponding voltage value.
Example two
The present embodiment provides a method for obtaining the crosstalk compensation value Δcode M in the first embodiment, as shown in fig. 9, in order to accurately obtain the crosstalk compensation value, a photographing mode may be adopted to obtain the background area brightness of the current row corresponding to the crosstalk. The foreground area of the exemplary test chart is a middle square area, the background area is a gray scale pattern of other areas, fig. 9 is a display effect example thereof, and crosstalk display effects are generated along a plurality of adjacent rows above and below the square area. The brightness after crosstalk is represented by the average value of the brightness of the background area of the current row (the average value of the brightness of different rows and columns in the period of the background area can be used also in the case of periodical change of the circuit structure of the display screen), and then an accurate compensation value is calculated based on the brightness after crosstalk.
The specific scheme is that the method comprises the following steps of setting image display data of a middle square area, changing the image display data of a background area (namely representing gray scales/voltage levels of different Mth rows), obtaining crosstalk generated by the Mth rows corresponding to different row voltage level statistical values on the Nth rows, fitting the relation between the crosstalk brightness Lv ctc and the display data through a formula (2), and finally obtaining a crosstalk compensation value corresponding to the Nth rows based on target brightness:
Lvctc＝α*Codeb+c*Code+d (2):
Wherein Lv ctc is the crosstalk post-brightness of the background area of the nth row, code is the sub-pixel gray scale value or the sub-pixel voltage value of the background area, and is used for representing the row voltage level statistic value of the mth row, and a, b, c, d is the brightness fitting parameter; in the case of a display screen circuit structure having a periodic variation, in addition to the relative positional relationship of the mth row and the nth row, the influence of the mth row and the nth row at different positions in the circuit structure period needs to be considered. In other embodiments, the test patterns are not limited to the example in fig. 9, and the crosstalk effects of different rows of statistical data may be distributed in the same pattern, focusing on the test in fewer patterns; the background gray scale in the test chart is not limited to W gray scale, and also comprises R/G/B/RG/RB/GB and other gray scales; the square area placement position in the test chart is not limited to the center of the screen, and may be located above, below, left, right, etc. the test chart is not limited to one square area in the horizontal direction.
When the crosstalk compensation value delta Code M of the nth row is obtained, a Code ' corresponding to the row voltage level statistical value of the mth row can be calculated according to the corresponding brightness fitting parameter and the formula (2), so that the background area brightness Lv ctc corresponding to the Code ' according to the formula (2) is equivalent to the display brightness level corresponding to the row voltage level statistical value of the mth row under the condition of no crosstalk, the corresponding crosstalk compensation value delta Code M can be calculated according to the difference between the Code ' and the Code, and the brightness gray scale relationship or the brightness voltage relationship under the condition of no common crosstalk are well known to those skilled in the art and are not repeated herein; the luminance gray-scale relationship or the luminance voltage relationship can also be obtained by an image portion without crosstalk in the obtained image at the time of photographing.
The embodiment may be implemented in advance, and the brightness fitting parameter may be stored in the display driving chip for use in crosstalk compensation, or a two-dimensional lookup table as in fig. 6 may be generated according to the fitting curve, and the two-dimensional lookup table may be stored in the display driving chip in advance for use in crosstalk compensation. The formula (2) used in this embodiment is a preferred fitting formula, and in other embodiments, the form of the fitting formula may also have other forms, and a person skilled in the art may choose a suitable formula to fit according to the actual situation.
Example III
The difference between the present embodiment and the first embodiment is that:
in the first embodiment, the input data is a gray level value, and the crosstalk compensation is performed by compensating the gray level value and then converting the gray level value into a voltage value for output.
In the embodiment, the first step and the second step are replaced by respectively calculating the average value of R/G/B to obtain the distribution information of the data;
Specifically, a row voltage level statistic is calculated according to formula (1);
Wherein: APL is a row voltage level statistic value, alpha r、αg、αb is a voltage level weight corresponding to the sub-pixels R/G/B respectively, R L、GL、BL is a sub-pixel voltage value of the sub-pixel R/G/B corresponding to the pixel of the L column respectively, and h is a column number maximum value.
Other compensation steps in this embodiment are similar to those in the embodiment, and only the format of the data is required to be converted correspondingly.
In the system/apparatus provided in this embodiment, the gamma conversion module/gamma conversion circuit is also required to be disposed before the line data statistics module/line data statistics circuit.
Example IV
The difference between the present embodiment and the first embodiment is that: the crosstalk compensation superimposing method used in the seventh step of the first embodiment is an offset method, and the crosstalk compensation superimposing method used in the present embodiment is a gain method.
Specifically, formula (3) is replaced with formula (4);
the Δcode M is a crosstalk compensation value corresponding to the mth row of the reference behavior, the Code in is the input data corresponding to the sub-pixels, the ratio is a corresponding crosstalk compensation weight preset according to the circuit structure of the display screen, and it should be noted that the preset value of the ratio needs to be adjusted according to the practical situation of the circuit structure of the display screen and the formula.
Example five
The difference between the present embodiment and the first embodiment is that: for the display circuit structure shown in fig. 1B, crosstalk may occur between the nth row and the N-2 th row, so that the row range referred to by the statistics and crosstalk compensation can be adjusted accordingly, and the row crosstalk compensation weight is correspondingly adjusted, and at this time, the referred row range [ M 1,M2 ] is adjusted to be [ N-2, n+2]; for other display screen circuit structures, the line range referenced by crosstalk compensation can also be correspondingly adjusted.
Example six
The difference between the present embodiment and the first embodiment is that: under the condition that the circuit structure of the display screen is periodically changed, different rows and/or different columns in the period can be respectively counted, namely, when counting row by row, each row corresponds to a plurality of row voltage level statistic values.
For the display circuit structure shown in fig. 1B, in the first step and the second step of this embodiment, each row corresponds to a row first packet statistic and a row second packet statistic, where the row first packet statistic counts only odd columns, and the row second packet statistic counts only even columns (i.e., the even columns have a weight of 0 in the row first packet statistic, and vice versa).
In the fifth step of this embodiment, the crosstalk compensation value calculated from the first packet statistics of the row is a first crosstalk compensation value Δcode M1, and the crosstalk compensation value calculated from the second packet statistics of the row is a second crosstalk compensation value Δcode M2;
In the sixth step and the seventh step of the embodiment, the crosstalk compensation weights need to be added after multiplying the corresponding crosstalk compensation values respectively, in addition to considering the differences in the row direction and the column direction, the grouping statistics for different row voltage levels needs to be provided with different grouping weights.
The embodiment can widely support different display screen circuit structures, support driving architectures such as MUX1:2, MUX1:4 and the like, consider different crosstalk influences of different rows or different columns of a period of a plurality of pixels, and support corresponding compensation weight adjustment.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (22)
1. A method of displaying crosstalk compensation, comprising the steps of:
step S1: counting the input data row by row to obtain a row voltage level statistical value and registering the row voltage level statistical value;
Step S2: respectively taking a plurality of adjacent lines of the current line as reference lines, judging whether the line voltage level statistical value of each reference line and the line voltage level statistical value of the current line meet a preset crosstalk compensation condition, if so, executing a step S3 by the reference line, and if not, not executing the step S3 on the reference line;
Step S3: acquiring a crosstalk compensation value of the reference row to the current row according to the row voltage level statistical value of the reference row and the row voltage level statistical value of the current row;
Step S4: superposing the crosstalk compensation value on the input data to obtain a final crosstalk compensation result;
The step S1 specifically comprises the following steps:
Step S1.1: carrying out line-by-line histogram statistics on sub-pixel gray scale values of input data to obtain corresponding histogram distribution;
Step S1.2: according to the histogram distribution, different voltage level weights are distributed to count values of different sub-pixel gray scale value ranges, and the row voltage level statistic values are obtained through accumulation and registered;
Or the step S1 specifically includes:
calculating row voltage level statistic values for input data row by row according to a formula (1) and registering;
（1）；
Wherein: APL is a row voltage level statistic, alpha r、αg、αb is a voltage level weight corresponding to the sub-pixel R/G/B,
、/>、/>The sub-pixel voltage values of the sub-pixels R/G/B corresponding to the pixels in the L column are respectively, and h is the maximum value of the column number.
2. The method of displaying crosstalk compensation according to claim 1, wherein in step S1 the row voltage level statistics comprise a number of row voltage level group statistics, the number of row voltage level group statistics comprising a row first group statistics and a row second group statistics, the voltage level weights in the row first group statistics and the voltage level weights in the row second group statistics of the input data corresponding to at least one sub-pixel being different during the row-by-row statistics.
3. The method of displaying crosstalk compensation according to claim 1, characterized in that the current row is the nth row, and that the number of rows adjacent to the current row comprises the mth row, M e [ M 1,M2],M1<N<M2 ].
4. A method of displaying crosstalk compensation according to claim 3, characterized in that M 1=N-1,M2 = n+1.
5. The method for displaying crosstalk compensation according to claim 3, wherein in step S3, a crosstalk compensation value of a reference row to a current row is obtained according to the row voltage level statistics of the reference row and the row voltage level statistics of the current row, specifically: and acquiring a crosstalk compensation value of the reference row to the current row through a two-dimensional lookup table according to the row voltage level statistical value of the reference row and the row voltage level statistical value of the current row.
6. The method of claim 5, wherein obtaining the crosstalk compensation value of the reference row for the current row via the two-dimensional lookup table includes directly looking up the crosstalk compensation value corresponding to the row voltage level statistics of the reference row and the row voltage level statistics of the current row, and calculating the crosstalk compensation value corresponding to the row voltage level statistics of the reference row and the row voltage level statistics of the current row by interpolation.
7. The method for displaying crosstalk compensation according to claim 1, wherein in step S3, a crosstalk compensation value of a reference row to a current row is obtained according to the row voltage level statistics of the reference row and the row voltage level statistics of the current row, specifically: and according to the line voltage level statistical value of the reference line and the line voltage level statistical value of the current line, acquiring a crosstalk compensation value of the reference line to the current line through a fitting formula, wherein the acquiring method of parameters of the fitting formula is a brightness fitting method.
8. The method of claim 5, wherein the method of obtaining data in the two-dimensional lookup table is a luminance fitting method.
9. The method of display crosstalk compensation according to claim 8, characterized in that the brightness fitting method comprises the steps S3.1 to S3.4:
step S3.1: dividing one area of a display screen into a foreground area, and dividing other areas into background areas to represent crosstalk influence of a reference row on a current row, wherein the foreground area is adjacent to one row of the background area in the current row, and the reference row is preset one row according to a circuit structure of the display screen;
step S3.2: presetting foreground display data of a foreground region, setting a background region as a plurality of groups of different background display data codes, displaying on the display screen and photographing;
Step S3.3: acquiring the crosstalk post-brightness Lv ctc of the background area of the current line in the photo obtained in the step S3.2, and fitting the background display data Code according to a formula (2) to obtain brightness fitting parameters;
（2）；
Wherein a, b, c, d are the luminance fitting parameters;
Step S3.4: and calculating a target data value Code ' corresponding to each background display data Code according to the formula (2), substituting the target data value Code ' into the post-crosstalk brightness Lv ctc obtained by the formula (2) to be equal to the target brightness level of the background area, and calculating a crosstalk compensation value delta Code M according to the difference between the target data value Code ' and the background display data Code.
10. The method of displaying crosstalk compensation according to claim 9, characterized in that step S3.3 further comprises: the luminance level of the crosstalk-free portion of the background area in the photograph obtained in step S3.2 is obtained as the target luminance level described in step S3.4.
11. A method for displaying crosstalk compensation according to claim 3, characterized in that in step S4, the final crosstalk compensation result is obtained after superimposing the crosstalk compensation value on the input data, specifically: calculating a final crosstalk compensation result Code out corresponding to each sub-pixel of the nth row according to the formula (3) or the formula (4);
（3）；
（4）；
Wherein Δcode M is a crosstalk compensation value corresponding to the mth row of the reference row, code in is the input data corresponding to the sub-pixels, and ratio is a corresponding crosstalk compensation weight preset according to the circuit structure of the display screen.
12. The method of displaying crosstalk compensation according to claim 11, characterized in that the crosstalk compensation weights comprise row direction weights, which are preset according to the circuit structure relationship of the reference row and the current row in the display screen.
13. The method of displaying crosstalk compensation according to claim 11, wherein the crosstalk compensation weights comprise column direction weights, and the column direction weights are preset according to column positions of the sub-pixels corresponding to the input data in the circuit structure of the display screen.
14. The method of displaying crosstalk compensation according to claim 11, characterized in that in step S1 said row voltage level statistics comprise a number of row voltage level group statistics comprising a row first group statistics and a row second group statistics, and that the voltage level weights in the row first group statistics and the voltage level weights in the row second group statistics of said input data corresponding to at least one subpixel during the row-by-row statistics are different;
The crosstalk compensation values corresponding to the reference rows comprise a plurality of grouped crosstalk compensation values, the grouped crosstalk compensation values comprise first crosstalk compensation values and second crosstalk compensation values, the first crosstalk compensation values correspond to row first grouping statistical values of the reference rows, and the second crosstalk compensation values correspond to row second grouping statistical values of the reference rows;
The crosstalk compensation weight comprises a plurality of grouping weights, the grouping weights comprise a first grouping weight and a second grouping weight, the first grouping weight corresponds to a first crosstalk compensation value, the second grouping weight corresponds to a second crosstalk compensation value, the first grouping weight and the second grouping weight corresponding to each sub-pixel are preset according to the position of the sub-pixel in a circuit structure of the display screen, and the first grouping weight and the second grouping weight corresponding to at least one sub-pixel are different.
15. The method for displaying crosstalk compensation according to claim 1, wherein the preset crosstalk compensation conditions in step S2 are: and the difference value between the line voltage level statistical value of the reference line and the line voltage level statistical value of the current line is greater than or equal to a preset threshold value.
16. The method of displaying crosstalk compensation according to claim 1, characterized in that after step S4 further comprises:
Step S5: updating the row voltage level statistics of the current row registered in step S1 with the final crosstalk compensation result in step S4.
17. The method of displaying crosstalk compensation according to claim 1, characterized in that after step S4 further comprises:
Step S6: and converting the final crosstalk compensation result in the step S4 into a sub-pixel voltage value and outputting the sub-pixel voltage value.
18. The method for crosstalk compensation of display according to claim 1, characterized in that in step S1, said line-by-line statistics of the input data are specifically: and converting the sub-pixel gray scale value of the input data into a sub-pixel voltage value, and then carrying out row-by-row statistics on the sub-pixel voltage value.
19. A system for displaying crosstalk compensation, characterized by comprising a row data statistics module, a row data statistics information storage module, a row data buffer module, a crosstalk compensation value calculation module and a crosstalk compensation module, said system being adapted to perform the method for displaying crosstalk compensation according to any of claims 1 to 18;
The line data statistics module is used for carrying out line-by-line statistics on input data to obtain a line voltage level statistical value;
the row data statistical information storage module is used for registering the row voltage level statistical value;
the data caching module is used for registering the input data;
the crosstalk compensation value calculation module is used for executing steps S2 and S3 of the method;
the crosstalk compensation module is used for executing the step S4 of the method and outputting the final crosstalk compensation result;
The data statistics module, the crosstalk compensation value calculation module and the crosstalk compensation module are sequentially connected in a signal mode;
the data statistical information storage module is respectively connected with the data statistical module and the crosstalk compensation value calculation module through signals;
the data buffer module is in signal connection with the crosstalk compensation module.
20. The system for displaying crosstalk compensation according to claim 19, characterized in that,
The method for compensating display crosstalk, in particular the method for compensating display crosstalk according to claim 19, wherein the system further comprises a gamma conversion module, the gamma conversion module is used for executing the step S6, and the gamma conversion module is in signal connection with the crosstalk compensation module;
Or the display crosstalk compensation method specifically is the display crosstalk compensation method according to claim 18, the system further comprises a gamma conversion module, the gamma conversion module is used for converting the sub-pixel gray scale value of the input data into the sub-pixel voltage value, and the gamma conversion module is in signal connection with the data statistics module.
21. An apparatus for displaying crosstalk compensation, characterized by comprising a row data statistics circuit, a row data statistics information memory, a row data buffer, a crosstalk compensation value calculation circuit and a crosstalk compensation circuit, said apparatus being adapted to perform the method of displaying crosstalk compensation according to any of claims 1 to 18;
The line data statistics circuit is used for carrying out line-by-line statistics on input data to obtain a line voltage level statistics value;
The row data statistical information memory is used for registering the row voltage level statistical value;
the data buffer is used for registering the input data;
The crosstalk compensation value calculating circuit is used for executing steps S2 and S3 of the method;
The crosstalk compensation circuit is used for executing the step S4 of the method and outputting the final crosstalk compensation result;
the data statistics circuit, the crosstalk compensation value calculation circuit and the crosstalk compensation circuit are electrically connected in sequence;
the data statistical information memory is respectively and electrically connected with the data statistical circuit and the crosstalk compensation value calculation circuit;
the data buffer is electrically connected with the crosstalk compensation circuit.
22. The apparatus for displaying crosstalk compensation according to claim 21, characterized in that,
The method for compensating display crosstalk, in particular the method for compensating display crosstalk according to claim 17, the device further comprising a gamma conversion circuit for performing step S6, the gamma conversion circuit being electrically connected to the crosstalk compensation circuit;
Or the method for compensating display crosstalk specifically is the method for compensating display crosstalk as claimed in claim 18, wherein the device for compensating display crosstalk further comprises a gamma conversion circuit, the gamma conversion circuit is used for converting a sub-pixel gray scale value of input data into a sub-pixel voltage value, and the gamma conversion circuit is electrically connected with the data statistics circuit.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040038250A (en) * | 2002-10-31 | 2004-05-08 | 엘지.필립스 엘시디 주식회사 | In-Plane Switching mode Liquid Crystal Display Device |
| CN101266742A (en) * | 2007-03-13 | 2008-09-17 | 精工爱普生株式会社 | Electro-optical device, method of driving electro-optical device, and electronic apparatus |
| CN101325047A (en) * | 2007-06-13 | 2008-12-17 | 乐金显示有限公司 | Liquid crystal display device and method for driving the same |
| CN101387770A (en) * | 2007-09-14 | 2009-03-18 | 群康科技(深圳)有限公司 | Drive method for liquid crystal display device |
| CN102436798A (en) * | 2012-01-04 | 2012-05-02 | 青岛海信电器股份有限公司 | Liquid crystal display driving method and device |
| CN106782427A (en) * | 2017-03-31 | 2017-05-31 | 深圳市华星光电技术有限公司 | The data voltage method of adjustment and device of liquid crystal display panel |
| CN110033728A (en) * | 2019-04-24 | 2019-07-19 | 京东方科技集团股份有限公司 | Crosstalk eliminating method, device, display equipment and storage medium |
| CN110390910A (en) * | 2018-04-18 | 2019-10-29 | 苹果公司 | To the precompensation of artifact caused by the pre-switch in electronic console |
| CN113192456A (en) * | 2021-04-30 | 2021-07-30 | 北海惠科光电技术有限公司 | Crosstalk elimination method and device of display panel and display equipment |
| CN113450718A (en) * | 2021-07-05 | 2021-09-28 | 昇显微电子(苏州)有限公司 | Method and device for compensating linear crosstalk of AMOLED display screen |
| CN114299881A (en) * | 2021-12-23 | 2022-04-08 | 豪威触控与显示科技(深圳)有限公司 | Compensation method and compensation device of pixel circuit |
| CN114360458A (en) * | 2022-01-27 | 2022-04-15 | 京东方科技集团股份有限公司 | Display data compensation method, circuit and display device |
| CN115206254A (en) * | 2022-06-15 | 2022-10-18 | Tcl华星光电技术有限公司 | Display device, display control method and electronic equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI377553B (en) * | 2008-03-18 | 2012-11-21 | Chimei Innolux Corp | Liquid crystal display and driving method thereof |
| US11004400B2 (en) * | 2019-05-17 | 2021-05-11 | Samsung Display Co., Ltd. | Display device compensating for horizontal crosstalk |
| US11205363B2 (en) * | 2019-10-18 | 2021-12-21 | Apple Inc. | Electronic display cross-talk compensation systems and methods |
| US11676556B2 (en) * | 2021-01-06 | 2023-06-13 | Apple Inc. | Row crosstalk mitigation |
-
2023
- 2023-05-09 CN CN202310517117.6A patent/CN116682378B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040038250A (en) * | 2002-10-31 | 2004-05-08 | 엘지.필립스 엘시디 주식회사 | In-Plane Switching mode Liquid Crystal Display Device |
| CN101266742A (en) * | 2007-03-13 | 2008-09-17 | 精工爱普生株式会社 | Electro-optical device, method of driving electro-optical device, and electronic apparatus |
| CN101325047A (en) * | 2007-06-13 | 2008-12-17 | 乐金显示有限公司 | Liquid crystal display device and method for driving the same |
| CN101387770A (en) * | 2007-09-14 | 2009-03-18 | 群康科技(深圳)有限公司 | Drive method for liquid crystal display device |
| CN102436798A (en) * | 2012-01-04 | 2012-05-02 | 青岛海信电器股份有限公司 | Liquid crystal display driving method and device |
| CN106782427A (en) * | 2017-03-31 | 2017-05-31 | 深圳市华星光电技术有限公司 | The data voltage method of adjustment and device of liquid crystal display panel |
| CN110390910A (en) * | 2018-04-18 | 2019-10-29 | 苹果公司 | To the precompensation of artifact caused by the pre-switch in electronic console |
| CN110033728A (en) * | 2019-04-24 | 2019-07-19 | 京东方科技集团股份有限公司 | Crosstalk eliminating method, device, display equipment and storage medium |
| CN113192456A (en) * | 2021-04-30 | 2021-07-30 | 北海惠科光电技术有限公司 | Crosstalk elimination method and device of display panel and display equipment |
| CN113450718A (en) * | 2021-07-05 | 2021-09-28 | 昇显微电子(苏州)有限公司 | Method and device for compensating linear crosstalk of AMOLED display screen |
| CN114299881A (en) * | 2021-12-23 | 2022-04-08 | 豪威触控与显示科技(深圳)有限公司 | Compensation method and compensation device of pixel circuit |
| CN114360458A (en) * | 2022-01-27 | 2022-04-15 | 京东方科技集团股份有限公司 | Display data compensation method, circuit and display device |
| CN115206254A (en) * | 2022-06-15 | 2022-10-18 | Tcl华星光电技术有限公司 | Display device, display control method and electronic equipment |
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