A driving method for a liquid crystal display device, a liquid crystal display device and a testing system

Abstract

The present invention discloses a driving method for a liquid crystal display device, a liquid crystal display device, a test system, a computer device and a storage medium, wherein the driving method of one embodiment comprises: obtaining a reverse grayscale according to the grayscale of at least one frame in the frame before the reverse and the frame after the reverse, and obtaining a transition grayscale from a transition balance table according to the reverse grayscale, wherein the transition balance table comprises each grayscale and a transition grayscale corresponding to each grayscale, and the transition grayscale is less than or equal to the corresponding grayscale; inserting a transition frame whose grayscale value is the transition grayscale between the frame before the reverse and the frame after the reverse, wherein the polarity of the transition frame is the same as the polarity of the frame before the reverse, so that the brightness change from the frame before the reverse to the frame after the reverse is less than or equal to a preset brightness threshold. The driving method provided by the present invention can solve the display poorness caused by the polarity reversal of the data signal in the prior art by inserting a transition frame between the frame before the reverse and the frame after the reverse, and has practical application value.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a driving method for a liquid crystal display device, a liquid crystal display device, a testing system, a computer device and a storage medium. Background Art

[0002] In large-size, high-speed display panels, when static images are displayed for a long time, bias voltage will be generated on the pixels and it is easy to cause afterimages. In order to improve the afterimage, a polarity reversal is usually performed at a preset time interval to offset the bias voltage on the pixels. However, when the polarity of the data signals of the two frames before and after the image is the same, the liquid crystal will deflect in the same direction, causing the deflection angle of the liquid crystal in the latter frame to be too large, causing the liquid crystal to be overdriven, resulting in a difference in brightness between the previous and next frames in static conditions, causing the image to flash white. Summary of the invention

[0003] In order to solve at least one of the above problems, a first embodiment of the present invention provides a driving method of a liquid crystal display device, wherein a liquid crystal display panel of the liquid crystal display device includes a plurality of data lines for providing data signals to a plurality of connected sub-pixels, wherein the data signals are polarity-reversed at a preset time interval, and the polarity of the previous frame is the same as the polarity of the next frame. The driving method includes:

[0004] Acquire an inverted grayscale according to the grayscale of at least one of the frame before the inversion and the frame after the inversion, and acquire a transition grayscale from a transition balance table according to the inverted grayscale, wherein the transition balance table includes each grayscale and a transition grayscale corresponding to each grayscale, and the transition grayscale is less than or equal to the corresponding grayscale;

[0005] A transition frame with a grayscale value of a transition grayscale is inserted between the frame before the inversion and the frame after the inversion, and the polarity of the transition frame is the same as the polarity of the frame before the inversion, so that the brightness change from the frame before the inversion to the frame after the inversion is less than or equal to a preset brightness threshold.

[0006] For example, in the driving method provided in some embodiments of the present application, the step of obtaining the inverted grayscale according to the grayscale of at least one of the frame before the inversion and the frame after the inversion, and obtaining the transition grayscale from the transition balance table according to the inverted grayscale further includes:

[0007] The inversion grayscale is the grayscale of the frame before the inversion, and the transition grayscale is less than or equal to the grayscale of the frame before the inversion.

[0008] For example, in the driving method provided in some embodiments of the present application, the step of obtaining the inverted grayscale according to the grayscale of at least one of the frame before the inversion and the frame after the inversion, and obtaining the transition grayscale from the transition balance table according to the inverted grayscale further includes:

[0009] The inversion grayscale is the grayscale of a frame after the inversion, and the transition grayscale is less than or equal to the grayscale of a frame after the inversion.

[0010] For example, in the driving method provided in some embodiments of the present application, the step of obtaining the inverted grayscale according to the grayscale of at least one of the frame before the inversion and the frame after the inversion, and obtaining the transition grayscale from the transition balance table according to the inverted grayscale further includes:

[0011] The inversion grayscale is an average grayscale of a grayscale of a frame before the inversion and a grayscale of a frame after the inversion, and the transition grayscale is less than or equal to an average grayscale of a grayscale of a frame before the inversion and a grayscale of a frame after the inversion.

[0012] For example, in the driving method provided in some embodiments of the present application, the reverse grayscale includes a first color grayscale, a second color grayscale, and a third color grayscale, and the step of obtaining the reverse grayscale according to the grayscale of at least one of the frame before the reverse and the frame after the reverse, and obtaining the transition grayscale from the transition balance table according to the reverse grayscale further includes:

[0013] According to the first color grayscale of the inverted grayscale, a corresponding first color transition grayscale is acquired from a transition balance table;

[0014] According to the second color grayscale of the inverted grayscale, a corresponding second color transition grayscale is acquired from a transition balance table;

[0015] According to the third color grayscale of the inverted grayscale, a corresponding third color transition grayscale is acquired from a transition balance table;

[0016] The transition grayscale is acquired according to the first color transition grayscale, the second color transition grayscale and the third color transition grayscale.

[0017] For example, in the driving method provided in some embodiments of the present application, before acquiring the inverted grayscale according to the grayscale of at least one of the frame before the inversion and the frame after the inversion, and acquiring the transition grayscale from the transition balance table according to the inverted grayscale, the driving method further includes:

[0018] According to the transition balance test method, the first color grayscale, the second color grayscale and the third color grayscale are respectively traversed to obtain the corresponding first color transition balance table, second color transition balance table and third color transition balance table;

[0019] The transition balance table is acquired according to the first color transition balance table, the second color transition balance table and the third color transition balance table.

[0020] For example, in the driving method provided in some embodiments of the present application, the transition balance test method includes:

[0021] lighting the liquid crystal display panel using a gray scale of one of the first color, the second color, and the third color;

[0022] When the data signal does not reverse polarity according to a preset time interval, measuring a plurality of first brightness values ​​in a frame, and obtaining a first brightness average value according to the plurality of first brightness values;

[0023] When the polarity of the data signal is reversed at a preset time interval, a plurality of second brightness values ​​in a frame after the reversed frame are measured, and a second brightness average value is obtained according to the plurality of second brightness values;

[0024] Compare the brightness difference threshold corresponding to the one grayscale, and the brightness difference between the first brightness average value and the second brightness average value. If the brightness difference is greater than the brightness difference threshold, adjust the grayscale of the inverted frame according to the brightness difference, perform polarity reversal again at a preset time interval to measure the second brightness average value of the inverted frame, calculate the brightness difference again based on the first brightness average value and the second brightness average value, until the brightness difference is less than or equal to the brightness difference threshold, and use the adjusted grayscale of the inverted frame as the transition grayscale of the one grayscale of the one color.

[0025] For example, in the driving method provided in some embodiments of the present application, the brightness difference threshold corresponding to the one grayscale is compared, and the brightness difference between the first brightness average value and the second brightness average value, if the brightness difference is greater than the brightness difference threshold, the grayscale of the frame after the inversion is adjusted according to the brightness difference, and the polarity is reversed again at a preset time interval to measure the second brightness average value of the frame after the inversion, and the brightness difference is calculated again according to the second brightness average value and the first brightness average value until the brightness difference is less than or equal to the brightness difference threshold, and the grayscale of the frame after the inversion after the adjustment is used as the transition grayscale of the one grayscale of the one color further includes:

[0026] Compare the brightness difference threshold and the brightness difference between the first brightness average value and the second brightness average value. If the brightness difference is greater than the brightness difference threshold:

[0027] Determining the grayscale adjustment value in stages according to the brightness difference value;

[0028] Determine the grayscale of the inverted frame according to the grayscale adjustment value and the one grayscale;

[0029] According to the determined grayscale of the inverted frame, polarity inversion is performed again at a preset time interval, and a plurality of second brightness values ​​in one frame of the inverted frame are measured, and the second brightness average value is obtained according to the plurality of second brightness values;

[0030] calculating the brightness difference again according to the second brightness average value and the first brightness average value;

[0031] The brightness difference threshold and the brightness difference between the first brightness average value and the second brightness average value are compared again until the brightness difference is less than or equal to the brightness difference threshold.

[0032] For example, in the driving method provided in some embodiments of the present application, the transition balance test method further includes:

[0033] The first brightness value and the second brightness value are measured using a brightness sensor installed on the light-emitting side of the liquid crystal display panel.

[0034] A second embodiment of the present invention provides a liquid crystal display device using the driving method described in the first embodiment, including a liquid crystal display panel and a driving chip, wherein:

[0035] The liquid crystal display panel comprises a plurality of data lines for providing data signals to a plurality of connected sub-pixels, wherein the data signals are polarity-inverted at a preset time interval, and the polarity of a frame before the inversion is the same as the polarity of a frame after the inversion;

[0036] The driver chip is configured as follows:

[0037] Acquire an inverted grayscale according to the grayscale of at least one of the frame before the inversion and the frame after the inversion, and acquire a transition grayscale from a transition balance table according to the inverted grayscale, wherein the transition balance table includes each grayscale and a transition grayscale corresponding to each grayscale, and the transition grayscale is less than or equal to the corresponding grayscale;

[0038] A transition frame with a grayscale value of a transition grayscale is inserted between the frame before the inversion and the frame after the inversion, and the polarity of the transition frame is the same as the polarity of the frame before the inversion, so that the brightness change from the frame before the inversion to the frame after the inversion is less than or equal to a preset brightness threshold.

[0039] The third embodiment of the present invention provides a test system for implementing the transition balance test method of the driving method described in the first embodiment, comprising: a test controller, a test driving board and a brightness sensor, wherein

[0040] The brightness sensor is arranged on the light-emitting side of the liquid crystal display panel to be tested to measure its light-emitting brightness and output the brightness value to the test controller;

[0041] The test controller is used to calculate the gray scale of a frame after the polarity inversion according to the brightness value and transmit it to the liquid crystal display device through the test driving board.

[0042] For example, the test system provided in some embodiments of the present application also includes an oscilloscope that receives the brightness value and is used to display the brightness waveform of the liquid crystal display panel to be tested in real time.

[0043] A fourth embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the method described in the first embodiment is implemented.

[0044] A first embodiment of the present invention provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the method described in the first embodiment is implemented when the processor executes the program.

[0045] The beneficial effects of the present invention are as follows:

[0046] In view of the existing problems, the present invention develops a driving method for a liquid crystal display device, a liquid crystal display device, a testing system, a computer device and a storage medium, obtains a reverse grayscale according to the grayscale of at least one frame between a frame before inversion and a frame after inversion, obtains a transition grayscale from a transition balance table according to the reverse grayscale, and inserts a transition frame with a transition grayscale having the same polarity as the frame before inversion and a grayscale value less than or equal to the reverse grayscale between the frame before inversion and the frame after inversion, thereby effectively lowering the display brightness of the liquid crystal display panel after inversion, which can solve the problem of poor display caused by polarity inversion of data signals in the prior art, effectively improve the display effect, improve user experience, and has practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0048] Figure 1 A schematic diagram showing a sudden change in brightness when polarity is reversed in the prior art;

[0049] Figure 2 A flow chart showing a driving method according to an embodiment of the present invention;

[0050] Figure 3 A schematic diagram showing brightness when polarity is reversed according to an embodiment of the present invention;

[0051] Figure 4A flow chart showing a method for obtaining transition grayscale according to an embodiment of the present invention is shown;

[0052] Figure 5 A schematic diagram showing a test system according to an embodiment of the present invention;

[0053] Figure 6 A flow chart showing a transition balance test method according to an embodiment of the present invention;

[0054] Figure 7 A flowchart showing the adjustment of a frame after inversion according to an embodiment of the present invention;

[0055] Figure 8 A schematic structural diagram of a computer device according to another embodiment of the present invention is shown. DETAILED DESCRIPTION

[0056] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with preferred embodiments and accompanying drawings. Similar components in the accompanying drawings are represented by the same reference numerals. It should be understood by those skilled in the art that the content specifically described below is illustrative rather than restrictive, and should not be used to limit the scope of protection of the present invention.

[0057] In the prior art, for large-size high-definition display panels, the positive and negative polarity bias voltages on the pixels cannot be offset. When static images are displayed for a long time, there will be an equivalent positive or negative bias voltage on the pixels, which will easily cause afterimages. In order to improve the afterimages, the POL polarity is usually reversed every 28 seconds so that the positive and negative bias voltages cancel each other out, and the equivalent DC voltage on the liquid crystal is zero, thus improving the afterimages. This method is called "28-second polarity reversal". Figure 1 As shown, 10 is the waveform of the data signal, 20 is the waveform of the brightness signal of the liquid crystal display panel, and the polarities of the two frames 11 and 12 are the same before and after the 28s polarity reversal, and the liquid crystal deflects in the same direction, resulting in an increase in the liquid crystal deflection angle of the frame 12 after the reversal based on the frame 11 before the reversal. From the waveform diagram shown in the figure, 21 shows that there is a sudden change in the brightness of the frame after the reversal, resulting in poor display of the display before and after the reversal. For example, the station logo at the corner of the video will flash white after the reversal, which seriously affects the user experience.

[0058] According to the above problems and the causes of the problems, such as Figure 2 As shown, an embodiment of the present invention provides a driving method of a liquid crystal display device, wherein a liquid crystal display panel of the liquid crystal display device includes a plurality of data lines for providing data signals to a plurality of connected sub-pixels, wherein the data signals are polarity-reversed at a preset time interval, and the polarity of the previous frame being reversed is the same as the polarity of the next frame being reversed, and the driving method includes:

[0059] Acquire an inverted grayscale according to the grayscale of at least one of the frame before the inversion and the frame after the inversion, and acquire a transition grayscale from a transition balance table according to the inverted grayscale, wherein the transition balance table includes each grayscale and a transition grayscale corresponding to each grayscale, and the transition grayscale is less than or equal to the corresponding grayscale;

[0060] A transition frame with a grayscale value of a transition grayscale is inserted between the frame before the inversion and the frame after the inversion, and the polarity of the transition frame is the same as the polarity of the frame before the inversion, so that the brightness change from the frame before the inversion to the frame after the inversion is less than or equal to a preset brightness threshold.

[0061] In the present embodiment, the liquid crystal display device obtains the inversion grayscale according to the grayscale of at least one frame between the frame before inversion and the frame after inversion, obtains the transition grayscale from the transition balance table according to the inversion grayscale, and inserts a transition frame with the same polarity as the frame before inversion and the grayscale value less than or equal to the inversion grayscale between the frame before inversion and the frame after inversion, thereby effectively lowering the display brightness of the liquid crystal display panel after inversion on the basis of using a preset time interval to perform polarity inversion to offset the bias voltage on the pixel point, which can solve the poor display caused by the polarity inversion of the data signal in the prior art, effectively improve the display effect, improve the user experience, and has practical application value.

[0062] In a specific example, Figure 3 As shown, a transition frame 15 is inserted between the frame 13 before the inversion and the frame 14 after the inversion. To ensure that a polarity inversion is performed at a preset time interval to offset the bias voltage on each pixel, the polarity of the transition frame 15 is the same as that of the frame 13 before the inversion and the frame 14 after the inversion. For example, Figure 3 If the polarities of the frame 13 before inversion and the frame 14 after inversion are both positive, the transition frame is also positive; similarly, those skilled in the art should understand that if the polarities of the frame 13 before inversion and the frame 14 after inversion are both negative, the transition frame is also negative, thereby ensuring that the bias voltage on each pixel can be offset.

[0063] Among them, the grayscale of the transition frame is determined by the grayscale of the previous inversion frame 13 and / or the grayscale of the next inversion frame 14. Specifically, the grayscale of the previous inversion frame 13 and / or the grayscale of the next inversion frame 14 obtains the inversion grayscale, and then obtains it from the stored transition balance table according to the inversion grayscale, wherein the transition balance table includes all grayscales and transition grayscales corresponding to each grayscale in all grayscales, and the transition grayscale is smaller than the inversion grayscale. In other words, the grayscale of the transition frame is a downgraded grayscale of the grayscale of the previous inversion frame 13 and / or the grayscale of the next inversion frame 14, and the transition frame 15 inserted between the previous inversion frame 13 and the next inversion frame 14 eliminates the sudden brightness change waveform caused by the continuous display of the previous inversion frame 13 and the next inversion frame 14. Figure 3As shown, the brightness waveform corresponding to the frame 13 before inversion is 23, the brightness waveform corresponding to the frame 14 after inversion is 24, the brightness waveform formed by the inserted transition frame 15 is 25, and the brightness waveform 25 of the transition frame 15 is smaller, so that the brightness change from the frame 13 before inversion to the frame 14 after inversion is less than or equal to the preset brightness threshold, that is, no brightness mutation waveform occurs.

[0064] It is worth noting that the present application does not specifically limit the brightness threshold. Those skilled in the art should select an appropriate brightness threshold according to the actual application requirements of the liquid crystal display device, with the elimination of brightness mutation after polarity reversal as the design criterion, which will not be elaborated here.

[0065] In an optional embodiment, the inversion grayscale is the grayscale of the frame before the inversion, and the transition grayscale is less than or equal to the grayscale of the frame before the inversion.

[0066] In this embodiment, the grayscale of the previous inversion frame is used as the inversion grayscale, and the grayscale of the previous inversion frame is used as the grayscale index to obtain the transition grayscale from the transition balance table, that is, the transition grayscale is less than or equal to the grayscale of the previous inversion frame. In other words, the sudden change in brightness caused by the continuous display of the previous inversion frame and the next inversion frame is eliminated by using the transition grayscale that is less than or equal to the grayscale of the previous inversion frame.

[0067] In a specific embodiment, Figure 4 As shown, the reverse grayscale includes a first color grayscale, a second color grayscale and a third color grayscale, and the step of obtaining the reverse grayscale according to the grayscale of at least one of the previous frame and the next frame, and obtaining the transition grayscale from the transition balance table according to the reverse grayscale further includes:

[0068] According to the first color grayscale of the inverted grayscale, a corresponding first color transition grayscale is acquired from a transition balance table;

[0069] According to the second color grayscale of the inverted grayscale, a corresponding second color transition grayscale is acquired from a transition balance table;

[0070] According to the third color grayscale of the inverted grayscale, a corresponding third color transition grayscale is acquired from a transition balance table;

[0071] The transition grayscale is acquired according to the first color transition grayscale, the second color transition grayscale and the third color transition grayscale.

[0072] In this embodiment, the red, green and blue grayscales are used for illustration, and each grayscale value includes a red grayscale, a green grayscale and a blue grayscale; meanwhile, the transition balance table includes a red transition balance table, a green transition balance table and a blue transition balance table. When obtaining the grayscale of the transition frame, first, each grayscale value obtains the red transition grayscale, the green transition grayscale and the blue transition grayscale from the red transition balance table, the green transition balance table and the blue transition balance table respectively through its own red grayscale, green grayscale and blue grayscale; then, the obtained red transition grayscale, green transition grayscale and blue transition grayscale are synthesized into a transition grayscale, and used as the grayscale of the transition frame.

[0073] For example, the grayscale of the previous frame is R254G252B253, that is, the grayscale value of red is 254, the grayscale value of green is 252, and the grayscale value of blue is 253. Table 1 is a red transition balance table, Table 2 is a green transition balance table, and Table 3 is a blue transition balance table.

[0074] Table 1 Red transition balance table

[0075] Grayscale 255 254 253 252 251 250 …… 1 0 Transition Grayscale 251 250 248 247 245 242 …… 0 0

[0076] Table 2 Green transition balance table

[0077] Grayscale 255 254 253 252 251 250 …… 1 0 Transition Grayscale 252 251 249 246 245 243 …… 1 0

[0078] Table 3 Blue transition balance table

[0079] Grayscale 255 254 253 252 251 250 …… 1 0 Transition Grayscale 250 249 248 246 246 245 …… 0 0

[0080] According to the red grayscale 254 of the previous frame, a search is performed in Table 1 to obtain a corresponding red transition grayscale of 250.

[0081] According to the green grayscale 252 of the previous frame, the corresponding green transition grayscale 246 is obtained by searching in Table 2.

[0082] According to the blue grayscale 253 of the previous frame, the corresponding blue transition grayscale 248 is obtained by searching in Table 3.

[0083] Finally, according to the obtained red transition grayscale of 250, green transition grayscale of 246 and blue transition grayscale of 248, the transition grayscale of the transition frame is obtained as R250G246B248 according to the grayscale R254G252B253 of the previous inverted frame, and the transition frame is inserted into the previous inverted frame and the next inverted frame to eliminate the sudden brightness change caused by the continuous display of the previous inverted frame and the next inverted frame.

[0084] Similar to the above embodiment, in another optional embodiment, the inversion grayscale is the grayscale of a frame after the inversion, and the transition grayscale is less than or equal to the grayscale of a frame after the inversion.

[0085] In this embodiment, the grayscale of the frame after the inversion is used as the inversion grayscale, and the grayscale of the frame after the inversion is used as the grayscale index to obtain the transition grayscale from the transition balance table, that is, the transition grayscale is less than or equal to the grayscale of the frame after the inversion. In other words, the transition grayscale less than or equal to the grayscale of the frame after the inversion is used to eliminate the sudden change in brightness caused by the continuous display of the frame before the inversion and the frame after the inversion.

[0086] Specifically, for example, the grayscale of the frame after inversion is R250G255B252, that is, the grayscale value of red is 250, the grayscale value of green is 255, and the grayscale value of blue is 252. According to the above red transition balance table, green transition balance table, and blue transition balance table, the red transition grayscale corresponding to the red grayscale 250 is 242, the green transition grayscale corresponding to the green grayscale 255 is 252, and the blue transition grayscale corresponding to the blue grayscale 252 is 246. Then, according to the grayscale R250G255B252 of the frame after inversion, the transition grayscale of the transition frame is R242G252B246, and the transition frame is inserted into the frame before and after the inversion to eliminate the sudden change in brightness caused by the continuous display of the frame before and after the inversion.

[0087] Similar to the above embodiment, in another optional embodiment, the inversion grayscale is the average grayscale of the grayscale of the frame before the inversion and the grayscale of the frame after the inversion, and the transition grayscale is less than or equal to the average grayscale of the grayscale of the frame before the inversion and the grayscale of the frame after the inversion.

[0088] In this embodiment, the average grayscale of the grayscale of the previous frame and the grayscale of the next frame is used as the reverse grayscale, and the average grayscale is used as the grayscale index to obtain the transition grayscale from the transition balance table, that is, the transition grayscale is less than or equal to the average grayscale. In other words, the sudden change in brightness caused by the continuous display of the previous frame and the next frame is eliminated by using the transition grayscale less than or equal to the average grayscale.

[0089] Specifically, for example, the grayscale of the previous frame after inversion is R254G252B253, and the grayscale of the next frame after inversion is R250G255B252, then the average grayscale is R252G253B252, that is, the grayscale value of red is 252, the grayscale value of green is 253, and the grayscale value of blue is 252. According to the above-mentioned red transition balance table, green transition balance table and blue transition balance table, the red transition grayscale 252 corresponds to a red transition grayscale of 247, the green transition grayscale 253 corresponds to a green transition grayscale of 249, and the blue transition grayscale 252 corresponds to a blue transition grayscale of 246. Then, according to the grayscale R254G252B253 of the previous frame and the grayscale R250G255B252 of the next frame, the transition grayscale of the transition frame is obtained as R247G249B246. The transition frame is inserted into the previous frame and the next frame to eliminate the sudden brightness change caused by the continuous display of the previous frame and the next frame.

[0090] Considering that a pre-stored transition balance table is used to obtain a transition grayscale of a transition frame in practical applications, in an optional embodiment, the driving method further includes:

[0091] According to the transition balance test method, the first color grayscale, the second color grayscale and the third color grayscale are respectively traversed to obtain the corresponding first color transition balance table, second color transition balance table and third color transition balance table;

[0092] The transition balance table is acquired according to the first color transition balance table, the second color transition balance table and the third color transition balance table.

[0093] In this embodiment, in order to solve the problem that a transition balance table needs to be established in practical applications, such as Figure 5 As shown, a test system for establishing a transition balance table includes: a test controller, a test drive board and a brightness sensor. The brightness sensor is used to measure the light output brightness of the liquid crystal display panel and output a data signal of the brightness value to the test controller. The test controller is then used to calculate the grayscale of a frame after polarity reversal according to the brightness value, and then the grayscale of the frame after the reversal is transmitted to the liquid crystal display panel through the test drive board for display after polarity reversal.

[0094] Specifically, Figure 6 As shown, taking the red R255 grayscale as an example, the following transition balance test method is used to illustrate how to obtain the transition grayscale corresponding to the red R255 grayscale:

[0095] In the first step, the liquid crystal display panel is illuminated with red R255.

[0096] In this embodiment, the liquid crystal display panel is illuminated by a specified grayscale of a specified color to facilitate measurement of the light output brightness of the liquid crystal display panel, that is, the liquid crystal display panel is illuminated by a grayscale of one of the first color, the second color and the third color.

[0097] The second step is to test the first brightness value of the normal frame and obtain the first brightness average value.

[0098] In this embodiment, when the data signal does not reverse its polarity according to the preset time interval, Figure 1 As shown, a plurality of first brightness values ​​in one frame of the ordinary frame 16 are measured using a brightness sensor disposed on the light-emitting side of the liquid crystal display panel, as shown in Table 4, which are a plurality of first brightness values ​​of red R255 in one frame, and a first brightness average value of 355nit is calculated based on the plurality of first brightness values. That is, when the data signal does not reverse its polarity at a preset time interval, a plurality of first brightness values ​​in one frame are measured, and the first brightness average value is obtained based on the plurality of first brightness values.

[0099] Table 4 R255 single frame brightness sampling data (unit: nit)

[0100] R255 357 356.8 356 356 355.6 355.4 355.2 355 ……

[0101] The third step is to test the second brightness value of a frame after polarity inversion and obtain the second brightness average value.

[0102] In this embodiment, when the polarity of the data signal is reversed at a preset time interval, Figure 1 As shown, a plurality of second brightness values ​​in a frame 12 after inversion are measured using a brightness sensor disposed on the light-emitting side of the liquid crystal display panel. Table 5 shows a plurality of second brightness values ​​of red R255 in a frame after inversion. The second brightness average value calculated based on the plurality of second brightness values ​​is 359 nit. That is, when the data signal is polarity-inverted at a preset time interval, the plurality of second brightness values ​​in a frame after inversion are measured, and the second brightness average value is obtained based on the plurality of second brightness values.

[0103] Table 5 Brightness sampling data in a single frame after polarity reversal under polarity reversal

[0104] R255 362 361.6 361 360.8 360.6 360.1 359 358.8 ……

[0105] The fourth step is to obtain the transition grayscale corresponding to red R255.

[0106] In this embodiment, the brightness difference value obtained according to the first brightness average value 355nit and the second brightness average value 359nit is 4nit, and the brightness difference threshold corresponding to red R255 is 0.5nit. Therefore, the brightness difference value 4nit of red R255 is greater than the brightness difference threshold 0.5nit, and a sudden change in brightness will occur after polarity reversal, showing a white flash problem.

[0107] In an optional embodiment, if Figure 7 As shown,

[0108] The first operation is to determine the grayscale adjustment value in stages according to the brightness difference value.

[0109] In this embodiment, the grayscale of the frame after the inversion is adjusted according to the brightness difference to eliminate the sudden brightness change phenomenon. The adjustment is usually performed in a step-by-step manner, for example, one grayscale is adjusted each time; however, in order to improve the test efficiency, the grayscale adjustment value is set in stages according to the brightness difference. For example, when the brightness difference is greater than or equal to 10, the grayscale is reduced by 10 each time; when the brightness difference is greater than or equal to 5 and less than or equal to 10, the grayscale is reduced by 4 each time; when the brightness difference is greater than or equal to 2 and less than or equal to 5, the grayscale is reduced by 2 each time; when the brightness difference is less than or equal to 2, the grayscale is reduced by 1 each time.

[0110] In this embodiment, the brightness difference of the red color R255 is 4 nit, and the grayscale adjustment value is 2.

[0111] The second operation is to determine the grayscale of the inverted frame according to the grayscale adjustment value and the one grayscale.

[0112] In this embodiment, the grayscale of the red color R255 in the next frame after polarity inversion is set to R253, which is calculated by subtracting the grayscale adjustment value 2 from the grayscale value 255.

[0113] The third operation is to perform polarity inversion again at a preset time interval according to the determined grayscale of the frame after the inversion, measure multiple second brightness values ​​within a frame of the frame after the inversion, and obtain the second brightness average value according to the multiple second brightness values.

[0114] In this embodiment, the test is performed again based on the calculated grayscale value R253 of the frame after inversion, and the grayscale value R253 of the frame after inversion is transmitted to the liquid crystal display panel through the test driving board of the test system to be displayed according to the grayscale value R253 of the frame after inversion after the polarity is reversed. At the same time, a brightness sensor is used to measure multiple second brightness values ​​of the frame after inversion, and the second brightness average value within the frame is calculated.

[0115] The fourth operation is to calculate the brightness difference value again according to the second brightness average value and the first brightness average value.

[0116] In this embodiment, a difference calculation is performed based on the second average brightness value obtained after adjustment and the first average brightness value to obtain a brightness difference value.

[0117] The fifth operation is to compare the brightness difference threshold and the brightness difference between the first brightness average value and the second brightness average value again until the brightness difference is less than or equal to the brightness difference threshold.

[0118] In this embodiment, the calculated brightness difference value is compared with the brightness difference threshold value of 0.5nit of the red R255. If it is still greater than the brightness difference threshold value, it jumps to the first operation to readjust the grayscale value of the inverted frame until the brightness difference value between the second brightness average value and the first brightness average value is less than the brightness difference threshold value.

[0119] Finally, when the brightness difference between the second brightness average value and the first brightness average value is less than the brightness difference threshold, the grayscale value of the inverted frame finally adjusted is used as the transition grayscale of the red R255 and stored in the red transition balance table.

[0120] At this point, the transition grayscale corresponding to the red R255 grayscale is obtained through the transition balance test method.

[0121] In order to obtain the transition grayscale more accurately and intuitively, in an optional embodiment, the test system further includes an oscilloscope, which receives the brightness value output by the brightness sensor and is used to display the brightness waveform of the liquid crystal display panel to be tested in real time.

[0122] This embodiment compares the brightness difference threshold corresponding to the one grayscale, and the brightness difference between the first brightness average value and the second brightness average value. If the brightness difference is greater than the brightness difference threshold, the grayscale of the inverted frame is adjusted according to the brightness difference, and the polarity is reversed again at a preset time interval to measure the second brightness average value of the inverted frame, and the brightness difference is calculated again based on the first brightness average value and the second brightness average value until the brightness difference is less than or equal to the brightness difference threshold, and the grayscale of the inverted frame after the adjustment is used as the transition grayscale of the one grayscale of the one color.

[0123] It is worth noting that the present application does not make any specific limitation on the brightness difference threshold corresponding to each gray scale. Those skilled in the art should set the brightness difference threshold of each gray scale according to the display characteristics of the actual liquid crystal display device, so as to achieve the design criterion of eliminating the sudden brightness change of the brightness of the frame after the polarity reversal, which will not be elaborated here.

[0124] To obtain the transition grayscales of all color grayscales, according to the above transition balance test method, the first color grayscale, the second color grayscale and the third color grayscale are traversed respectively to obtain the corresponding first color transition balance table, second color transition balance table and third color transition balance table.

[0125] Specifically, the transition balance test method is used to obtain the transition grayscales from red R0 to red R255 to obtain a red transition balance table, which includes each red grayscale and the transition grayscales corresponding to each red grayscale; the transition balance test method is then used to obtain the transition grayscales from green G0 to green G255 to obtain a green transition balance table, which includes each green grayscale and the transition grayscales corresponding to each green grayscale; the transition balance test method is then used to obtain the transition grayscales from blue B0 to blue B255 to obtain a blue transition balance table, which includes each blue grayscale and the transition grayscales corresponding to each blue grayscale.

[0126] Finally, the transition balance table of all gray levels is obtained according to the obtained red transition balance table, green transition balance table and blue transition balance table and stored in the liquid crystal display device, that is, the transition balance table is obtained according to the first color transition balance table, the second color transition balance table and the third color transition balance table.

[0127] In an embodiment of a practical application, when a video is played, when the liquid crystal display device detects that the polarity is about to be reversed, according to the grayscale of the previous frame, for example, the grayscale of a certain pixel is R254G250B251, the transition grayscale of R254 is obtained from the red transition balance table shown in Table 1 as R250, the transition grayscale of G250 is obtained from the green transition balance table shown in Table 2 as G243, and the transition grayscale of B251 is obtained from the blue transition balance table shown in Table 3 as B246, so that the grayscale R254G250B251 of the pixel is obtained. When the polarity is reversed, the transition grayscale of the transition frame inserted between the previous frame and the next frame is R250G243B246, thereby eliminating the display defect in the prior art in which the brightness suddenly changes in the next frame due to the polarity reversal of the data signal, effectively improving the display effect and improving the user experience.

[0128] Corresponding to the driving method provided in the above-mentioned embodiments, an embodiment of the present application also provides a liquid crystal display device using the above-mentioned driving method. Since the liquid crystal display device provided in the embodiment of the present application corresponds to the driving methods provided in the above-mentioned embodiments, the previous implementation is also applicable to the liquid crystal display device provided in this embodiment and will not be described in detail in this embodiment.

[0129] An embodiment of the present application further provides a liquid crystal display device using the above driving method, including a liquid crystal display panel and a driving chip, wherein:

[0130] The liquid crystal display panel comprises a plurality of data lines for providing data signals to a plurality of connected sub-pixels, wherein the data signals are polarity-inverted at a preset time interval, and the polarity of a frame before the inversion is the same as the polarity of a frame after the inversion;

[0131] The driving chip is configured as follows: obtaining a reverse grayscale according to the grayscale of at least one of the frames before the inversion and after the inversion, and obtaining a transition grayscale from a transition balance table according to the reverse grayscale, wherein the transition balance table includes each grayscale and a transition grayscale corresponding to each grayscale, and the transition grayscale is less than or equal to the corresponding grayscale; inserting a transition frame whose grayscale value is the transition grayscale between the frame before the inversion and the frame after the inversion, wherein the polarity of the transition frame is the same as that of the frame before the inversion, so that the brightness change from the frame before the inversion to the frame after the inversion is less than or equal to a preset brightness threshold.

[0132] In the present embodiment, the liquid crystal display device obtains the inversion grayscale according to the grayscale of at least one frame between the frame before inversion and the frame after inversion, obtains the transition grayscale from the transition balance table according to the inversion grayscale, and inserts a transition frame with the same polarity as the frame before inversion and the grayscale value less than or equal to the inversion grayscale between the frame before inversion and the frame after inversion, thereby effectively lowering the display brightness of the liquid crystal display panel after inversion on the basis of using a preset time interval to reverse the polarity to offset the bias voltage on the pixel point, which can solve the poor display caused by the polarity reversal of the data signal in the prior art, effectively improve the display effect, and improve the user experience.

[0133] like Figure 5 As shown, an embodiment of the present application also provides a test system for implementing the above transition balance test method, including: a test controller, a test drive board and a brightness sensor, wherein

[0134] The brightness sensor is arranged on the light-emitting side of the liquid crystal display panel to be tested to measure its light-emitting brightness and output the brightness value to the test controller;

[0135] The test controller is used to calculate the gray scale of a frame after the polarity inversion according to the brightness value and transmit it to the liquid crystal display device through the test driving board.

[0136] In the present embodiment, the brightness of the light emitted by the liquid crystal display panel to be tested under a certain monochrome grayscale is measured by a brightness sensor and the brightness value is outputted, the grayscale of a frame after polarity reversal is calculated by using the brightness value and transmitted to the liquid crystal display device through the test driving board, thereby obtaining the monochrome transition grayscale of the monochrome grayscale; and the transition balance table including the grayscale of each color can be obtained through the test system, so that the liquid crystal display device can obtain the transition frame inserted into the frame before and after the reversal through the transition balance table in actual application, thereby eliminating the poor display caused by the polarity reversal of the data signal in the prior art, effectively improving the display effect and improving the user experience.

[0137] In an optional embodiment, the test system further includes an oscilloscope receiving the brightness value, and configured to display the brightness waveform of the liquid crystal display panel to be tested in real time.

[0138] In this embodiment, by using an oscilloscope that can directly display the brightness value waveform, the transition grayscale can be acquired more accurately and intuitively, thereby effectively improving the efficiency of acquiring the transition grayscale.

[0139] Another embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements: obtaining a reverse grayscale based on the grayscale of at least one of the frames before the inversion and after the inversion, and obtaining a transition grayscale from a transition balance table based on the reverse grayscale, the transition balance table including each grayscale and a transition grayscale corresponding to each grayscale, the transition grayscale being less than or equal to the corresponding grayscale; inserting a transition frame whose grayscale value is the transition grayscale between the frame before the inversion and the frame after the inversion, the polarity of the transition frame being the same as the polarity of the frame before the inversion, so that the brightness change from the frame before the inversion to the frame after the inversion is less than or equal to a preset brightness threshold.

[0140] In practical applications, the computer-readable storage medium can adopt any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to, a system, device or device of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present embodiment, the computer-readable storage medium can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it.

[0141] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0142] The program code embodied on the computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0143] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0144] like Figure 8As shown, a structural schematic diagram of a computer device provided by another embodiment of the present invention. Figure 8 The computer device 12 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0145] like Figure 8 As shown, the computer device 12 is in the form of a general-purpose computing device. The components of the computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that connects various system components (including the system memory 28 and the processing unit 16).

[0146] Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor or a local bus using any of a variety of bus architectures. By way of example, these architectures include, but are not limited to, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MAC) bus, an Enhanced ISA bus, a Video Electronics Standards Association (VESA) local bus, and a Peripheral Component Interconnect (PCI) bus.

[0147] The computer device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by the computer device 12, including volatile and non-volatile media, removable and non-removable media.

[0148] The system memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 30 and / or cache memory 32. The computer device 12 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, the storage system 34 may be used to read and write non-removable, non-volatile magnetic media ( Figure 8 not shown, usually called a "hard drive"). Although Figure 8 Not shown in the figure, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk"), and an optical disk drive for reading and writing to a removable non-volatile optical disk (e.g., a CD-ROM, a DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to the bus 18 via one or more data medium interfaces. The memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to perform the functions of the various embodiments of the present invention.

[0149] A program / utility 40 having a set (at least one) of program modules 42 may be stored, for example, in the memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment. The program modules 42 generally perform the functions and / or methods of the embodiments described herein.

[0150] The computer device 12 may also communicate with one or more external devices 14 (e.g., keyboards, pointing devices, displays 24, etc.), one or more devices that enable a user to interact with the computer device 12, and / or any device that enables the computer device 12 to communicate with one or more other computing devices (e.g., network cards, modems, etc.). Such communication may be performed through an input / output (I / O) interface 22. Furthermore, the computer device 12 may also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) through a network adapter 20. Figure 8 As shown, the network adapter 20 communicates with other modules of the computer device 12 via the bus 18. It should be understood that although Figure 8 Not shown, other hardware and / or software modules may be used in conjunction with computer device 12, including but not limited to microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0151] The processor unit 16 executes various functional applications and data processing by running programs stored in the system memory 28, such as implementing a driving method of a liquid crystal display device provided by an embodiment of the present invention.

[0152] In view of the existing problems, the present invention develops a driving method for a liquid crystal display device, a liquid crystal display device, a testing system, a computer device and a storage medium, obtains a reverse grayscale according to the grayscale of at least one frame between a frame before inversion and a frame after inversion, obtains a transition grayscale from a transition balance table according to the reverse grayscale, and inserts a transition frame with a transition grayscale having the same polarity as the frame before inversion and a grayscale value less than or equal to the reverse grayscale between the frame before inversion and the frame after inversion, thereby effectively lowering the display brightness of the liquid crystal display panel after inversion, which can solve the problem of poor display caused by polarity inversion of data signals in the prior art, effectively improve the display effect, improve user experience, and has practical application value.

[0153] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A driving method for a liquid crystal display device, wherein a liquid crystal display panel of the liquid crystal display device comprises a plurality of data lines for providing data signals to a plurality of connected sub-pixels, characterized in that: The data signal performs polarity inversion at a preset time interval, and the polarity of the previous frame is the same as the polarity of the next frame. The driving method includes: Obtaining an inverted grayscale according to the grayscale of at least one of the frame before the inversion and the frame after the inversion, and obtaining a transition grayscale from a transition balance table according to the inverted grayscale, the transition balance table including each grayscale and a transition grayscale corresponding to each grayscale, the transition grayscale being less than or equal to the corresponding grayscale; the inverted grayscale including a first color grayscale, a second color grayscale and a third color grayscale, further comprising: obtaining a corresponding first color transition grayscale from the transition balance table according to the first color grayscale of the inverted grayscale; obtaining a corresponding second color transition grayscale from the transition balance table according to the second color grayscale of the inverted grayscale; obtaining a corresponding third color transition grayscale from the transition balance table according to the third color grayscale of the inverted grayscale; obtaining the transition grayscale according to the first color transition grayscale, the second color transition grayscale and the third color transition grayscale; A transition frame with a grayscale value of a transition grayscale is inserted between the frame before the inversion and the frame after the inversion, and the polarity of the transition frame is the same as the polarity of the frame before the inversion, so that the brightness change from the frame before the inversion to the frame after the inversion is less than or equal to a preset brightness threshold.

2. The driving method according to claim 1, characterized in that: The step of obtaining the reverse grayscale according to the grayscale of at least one of the frame before the reverse and the frame after the reverse, and obtaining the transition grayscale from the transition balance table according to the reverse grayscale further comprises: The inversion grayscale is the grayscale of the frame before the inversion, and the transition grayscale is less than or equal to the grayscale of the frame before the inversion.

3. The driving method according to claim 1, characterized in that: The step of obtaining the reverse grayscale according to the grayscale of at least one of the frame before the reverse and the frame after the reverse, and obtaining the transition grayscale from the transition balance table according to the reverse grayscale further comprises: The inversion grayscale is the grayscale of a frame after the inversion, and the transition grayscale is less than or equal to the grayscale of a frame after the inversion.

4. The driving method according to claim 1, characterized in that: The step of obtaining the reverse grayscale according to the grayscale of at least one of the frame before the reverse and the frame after the reverse, and obtaining the transition grayscale from the transition balance table according to the reverse grayscale further comprises: The inversion grayscale is an average grayscale of a grayscale of a frame before the inversion and a grayscale of a frame after the inversion, and the transition grayscale is less than or equal to an average grayscale of a grayscale of a frame before the inversion and a grayscale of a frame after the inversion.

5. The driving method according to claim 1, characterized in that: Before acquiring the inverted grayscale according to the grayscale of at least one of the frame before the inversion and the frame after the inversion, and acquiring the transition grayscale from the transition balance table according to the inverted grayscale, the driving method further includes: According to the transition balance test method, the first color grayscale, the second color grayscale and the third color grayscale are respectively traversed to obtain the corresponding first color transition balance table, second color transition balance table and third color transition balance table; The transition balance table is acquired according to the first color transition balance table, the second color transition balance table and the third color transition balance table.

6. The driving method according to claim 5, characterized in that: The transition balance test method comprises: lighting the liquid crystal display panel using a gray scale of one of the first color, the second color, and the third color; When the data signal does not reverse polarity according to a preset time interval, measuring a plurality of first brightness values ​​in a frame, and obtaining a first brightness average value according to the plurality of first brightness values; When the polarity of the data signal is reversed at a preset time interval, a plurality of second brightness values ​​in a frame after the reversed frame are measured, and a second brightness average value is obtained according to the plurality of second brightness values; Compare the brightness difference threshold corresponding to the one grayscale, and the brightness difference between the first brightness average value and the second brightness average value. If the brightness difference is greater than the brightness difference threshold, adjust the grayscale of the inverted frame according to the brightness difference, perform polarity reversal again at a preset time interval to measure the second brightness average value of the inverted frame, calculate the brightness difference again based on the first brightness average value and the second brightness average value, until the brightness difference is less than or equal to the brightness difference threshold, and use the adjusted grayscale of the inverted frame as the transition grayscale of the one grayscale of the one color.

7. The driving method according to claim 6, characterized in that: The step of comparing the brightness difference threshold corresponding to the one grayscale and the brightness difference between the first brightness average value and the second brightness average value, adjusting the grayscale of the inverted frame according to the brightness difference if the brightness difference is greater than the brightness difference threshold, performing polarity inversion again at a preset time interval to measure the second brightness average value of the inverted frame, calculating the brightness difference again according to the second brightness average value and the first brightness average value until the brightness difference is less than or equal to the brightness difference threshold, and using the adjusted grayscale of the inverted frame as the transition grayscale of the one grayscale of the one color further includes: Compare the brightness difference threshold and the brightness difference between the first brightness average value and the second brightness average value. If the brightness difference is greater than the brightness difference threshold: Determining the grayscale adjustment value in stages according to the brightness difference value; Determine the grayscale of the inverted frame according to the grayscale adjustment value and the one grayscale; According to the determined grayscale of the inverted frame, polarity inversion is performed again at a preset time interval, and a plurality of second brightness values ​​in one frame of the inverted frame are measured, and the second brightness average value is obtained according to the plurality of second brightness values; calculating the brightness difference again according to the second brightness average value and the first brightness average value; The brightness difference threshold and the brightness difference between the first brightness average value and the second brightness average value are compared again until the brightness difference is less than or equal to the brightness difference threshold.

8. The driving method according to claim 6, characterized in that: The transition balance test method further comprises: The first brightness value and the second brightness value are measured using a brightness sensor installed on the light-emitting side of the liquid crystal display panel.

9. A liquid crystal display device using the driving method according to any one of claims 1 to 8, characterized in that: It includes a liquid crystal display panel and a driver chip, wherein: The liquid crystal display panel comprises a plurality of data lines for providing data signals to a plurality of connected sub-pixels, wherein the data signals are polarity-inverted at a preset time interval, and the polarity of a frame before the inversion is the same as the polarity of a frame after the inversion; The driver chip is configured as follows: Obtaining an inverted grayscale according to the grayscale of at least one of the frame before the inversion and the frame after the inversion, and obtaining a transition grayscale from a transition balance table according to the inverted grayscale, the transition balance table including each grayscale and a transition grayscale corresponding to each grayscale, the transition grayscale being less than or equal to the corresponding grayscale; the inverted grayscale including a first color grayscale, a second color grayscale and a third color grayscale, further comprising: obtaining a corresponding first color transition grayscale from the transition balance table according to the first color grayscale of the inverted grayscale; obtaining a corresponding second color transition grayscale from the transition balance table according to the second color grayscale of the inverted grayscale; obtaining a corresponding third color transition grayscale from the transition balance table according to the third color grayscale of the inverted grayscale; obtaining the transition grayscale according to the first color transition grayscale, the second color transition grayscale and the third color transition grayscale; A transition frame with a grayscale value of a transition grayscale is inserted between the frame before the inversion and the frame after the inversion, and the polarity of the transition frame is the same as the polarity of the frame before the inversion, so that the brightness change from the frame before the inversion to the frame after the inversion is less than or equal to a preset brightness threshold.

10. A test system for implementing a transition balance test method of a driving method according to any one of claims 5 to 8, characterized in that: include: Test controller, test driver board and brightness sensor, where The brightness sensor is arranged on the light-emitting side of the liquid crystal display panel to be tested to measure its light-emitting brightness and output the brightness value to the test controller; The test controller is used to calculate the gray scale of a frame after the polarity inversion according to the brightness value and transmit it to the liquid crystal display device through the test driving board.

11. The test system according to claim 10, characterized in that: It also includes an oscilloscope that receives the brightness value and is used to display the brightness waveform of the liquid crystal display panel to be tested in real time.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 8 is implemented.

13. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the method according to any one of claims 1 to 8 is implemented.

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