Display panel, driving method and display device

Abstract

The invention relates to a display panel, a driving method and a display device, a display stage of the display panel comprises a plurality of picture frames, and one picture frame sequentially comprises a first color frame, a second color frame and a third color frame; each of a first color frame, a second color frame and a third color frame in the at least one picture frame comprises a first sub-frame and a second sub-frame, and the first sub-frame is earlier than the second sub-frame; the display panel comprises liquid crystal, in one color frame, the liquid crystal receives compensation gray-scale voltage in a first sub-frame and receives target gray-scale voltage in a second sub-frame, and the compensation gray-scale voltage is different from the target gray-scale voltage. Therefore, the liquid crystal response time can be shortened, the liquid crystal response speed can be improved, and the problems of color crossing, uneven display and the like caused by insufficient liquid crystal response are solved.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a display panel, a driving method and a display device. Background Art

[0002] At present, field sequential display devices need to quickly switch the red, green and blue backlights to achieve color display on the LCD panel. However, this display method requires a higher module frame rate, at least 180HZ, and has higher requirements on the response speed of the liquid crystal. Insufficient response speed of the liquid crystal can easily lead to display abnormalities such as cross-color and uneven display.

[0003] How to improve the response speed of the field sequential display device and reduce display anomalies has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0004] In view of this, the present invention provides a display panel, a driving method and a display device to solve the problem of insufficient liquid crystal response and abnormal display images.

[0005] In a first aspect, the present invention provides a display panel, wherein a display stage of the display panel includes a plurality of picture frames, and one of the picture frames sequentially includes a first color frame, a second color frame, and a third color frame;

[0006] The first color frame, the second color frame and the third color frame in at least one picture frame each include a first subframe and a second subframe, and the first subframe is earlier than the second subframe;

[0007] The display panel includes liquid crystal, and in a color frame, the liquid crystal receives a compensation grayscale voltage in a first subframe and receives a target grayscale voltage in a second subframe, and the compensation grayscale voltage is different from the target grayscale voltage.

[0008] In a second aspect, the present invention provides a method for driving a display panel, wherein a display stage of the display panel includes a plurality of picture frames, wherein one picture frame includes a first color frame, a second color frame, and a third color frame in sequence; the first color frame, the second color frame, and the third color frame in at least one picture frame each include a first subframe and a second subframe, and the first subframe is earlier than the second subframe; the display panel includes a liquid crystal;

[0009] Methods include:

[0010] In a color frame, a compensation grayscale voltage is provided to the liquid crystal in a first subframe, and a target grayscale voltage is provided to the liquid crystal in a second subframe, and the compensation grayscale voltage is different from the target grayscale voltage.

[0011] In a third aspect, the present disclosure provides a display device including the display panel of the present invention.

[0012] Compared with the prior art, the display panel, driving method and display device provided by the present invention achieve at least the following beneficial effects: The present invention provides a display panel. The display stage of the display panel includes multiple picture frames. One picture frame sequentially includes a first color frame, a second color frame and a third color frame; in at least one picture frame, the first color frame, the second color frame and the third color frame all include a first sub-frame and a second sub-frame, and the first sub-frame is earlier than the second sub-frame; the display panel includes liquid crystal. In one color frame, the liquid crystal receives a compensation gray scale voltage in the first sub-frame and receives a target gray scale voltage in the second sub-frame, and the compensation gray scale voltage is different from the target gray scale voltage. By applying the compensation gray scale voltage to the first sub-frame, the liquid crystal provided by the display panel of the present invention deflects to the target gray scale at a faster speed, improving the liquid crystal response speed and solving problems such as color crosstalk and uneven display caused by insufficient liquid crystal response. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure and, together with the specification, are used to explain the principles of the present disclosure.

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 Shown is a schematic diagram of the refresh rate of a traditional liquid crystal display in the related art;

[0016] Figure 2 Shown is a schematic diagram of the refresh rate of a field sequential display in the related art;

[0017] Figure 3 Shown is a schematic plan view of a display panel provided by an embodiment of the present disclosure;

[0018] Figure 4 Shown is a schematic diagram of a film layer structure provided by an embodiment of the present disclosure;

[0019] Figure 5 Shown as Figure 4 a schematic plan view of a backlight module in

[0020] Figure 6 Shown is a schematic diagram of a color signal arrangement provided by an embodiment of the present disclosure;

[0021] Figure 7 Shown is a schematic diagram of a gray scale voltage provided by an embodiment of the present disclosure;

[0022] Figure 8 The figure shows a schematic diagram of the relative duration between a first sub-frame and a second sub-frame provided by an embodiment of the present disclosure;

[0023] Figure 9 The figure shows a schematic diagram of the backlight being turned on or off provided by an embodiment of the present disclosure;

[0024] Figure 10 The figure shows a schematic diagram of the scanning direction of a picture frame provided by an embodiment of the present disclosure;

[0025] Figure 11 The figure shows a schematic diagram of the connection of a display device provided by an embodiment of the present disclosure. Detailed implementation manners

[0026] In order to more clearly understand the above-mentioned objects, features, and advantages of the embodiments of the present disclosure, the solutions of the embodiments of the present disclosure will be further described below. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments may be combined with each other.

[0027] Many specific details are set forth in the following description in order to fully understand the embodiments of the present disclosure, but the embodiments of the present disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all the embodiments.

[0028] Figure 1 The figure shows a schematic diagram of the refresh rate of a traditional liquid crystal display in the related art, Figure 2 The figure shows a schematic diagram of the refresh rate of a field-sequential display in the related art. Please refer to Figure 1 and Figure 2 , the traditional liquid crystal display includes a color filter substrate, and the backlight is white light; the field-sequential display includes red, green, and blue backlights. The field-sequential liquid crystal display method decomposes a frame of color image into three primary color sub-fields, such as a red sub-field, a green sub-field, and a blue sub-field. Without additionally setting a color filter substrate, only by quickly switching the red sub-field, the green sub-field, and the blue sub-field in sequence according to time, a color display can be obtained. Since the frame frequency of the field-sequential display is three times that of the traditional display, the field-sequential display requires the liquid crystal to have at least three times the response speed of the traditional liquid crystal display. For example, to display a 60HZ picture refresh, the actual refresh rate of the traditional liquid crystal display is 60HZ, while the actual refresh rate of each primary color sub-field of the field-sequential display is 180HZ. This display method has a high requirement for the liquid crystal response speed, and insufficient liquid crystal response speed is likely to cause abnormal display images.

[0029] Figure 3 The figure shows a schematic diagram of the planar structure of a display panel provided by an embodiment of the present disclosure, Figure 4 The figure shows a schematic diagram of a film layer structure provided by an embodiment of the present disclosure,Figure 5 As shown Figure 4 is a plan view of a backlight module in Figure 6 As shown is a schematic diagram of a color signal arrangement provided by an embodiment of the present disclosure. Figure 7 As shown is a schematic diagram of a grayscale voltage provided by an embodiment of the present disclosure. Please refer to Figures 3 to 7 , the present disclosure provides a display panel 100. The display panel 100 includes a display area AA and a non-display area NA located on at least one side of the display area AA. The display area includes pixel rows 11 arranged along a second direction D2. Each pixel row 11 includes a plurality of sub-pixels 10 arranged along a first direction D1. The first direction D1 intersects the second direction D2. The display stage of the display panel 100 includes a plurality of frame buffers F. One frame buffer F sequentially includes a first color frame Y1, a second color frame Y2, and a third color frame Y3. The first color frame Y1, the second color frame Y2, and the third color frame Y3 in at least one frame buffer F each include a first sub-frame F11 and a second sub-frame F12. The first sub-frame F11 is earlier than the second sub-frame F12. The display panel 100 includes liquid crystal. In one color frame, the liquid crystal receives a compensation grayscale voltage V1 in the first sub-frame F11 and receives a target grayscale voltage V2 in the second sub-frame F12. The compensation grayscale voltage V1 is different from the target grayscale voltage V2.

[0030] Specifically, please refer to Figure 4 , the display panel 100 in the embodiment of the present disclosure includes an array substrate 101, a counter substrate 102, and a liquid crystal layer 103 located between the array substrate 101 and the counter substrate 102. The liquid crystal layer 103 includes liquid crystal. Among them, the array substrate 101 includes a pixel electrode and a common electrode. The electric field generated by the pixel electrode and the common electrode receiving corresponding voltage signals can drive the liquid crystal to deflect to achieve image display. The counter substrate 102 includes a light-shielding portion 104. The light-shielding portion 104 is used to block positions that do not need to emit light to prevent light leakage or color mixing. The backlight module 30 is located on one side of the display panel 100 and is used to provide backlight for the display panel 100. The backlight module 30 includes a plurality of backlight sources B. The backlight sources B include a red backlight source B1, a green backlight source B2, and a blue backlight source B3. The light emitted by the backlight source B passes through the deflected liquid crystal layer 103. The light passing through the liquid crystal layer 103 can directly pass through the portion of the counter substrate 102 where the light-shielding portion 104 is not provided and reach the display surface of the display panel 100.

[0031] Please refer to Figure 6, in an optional embodiment provided by the present disclosure, a picture frame F sequentially includes a first color frame Y1, a second color frame Y2, and a third color frame Y3. Among them, the first color frame Y1, the second color frame Y2, and the third color frame Y3 are respectively one of a red color frame, a green color frame, and a blue color frame. In a picture frame F, the first color frame Y1 includes a first sub-frame F11 and a second sub-frame F12, the second color frame Y2 includes a first sub-frame F11 and a second sub-frame F12, and the third color frame Y3 includes a first sub-frame F11 and a second sub-frame F12. Among them, the first sub-frame F11 is earlier than the second sub-frame F12. That is to say, the picture sending method of a picture frame F in the embodiment of the present disclosure is: first send two identical first color pictures, then send two identical second color pictures, and then send two identical third color pictures. In each color picture, the first sub-frame F11 is earlier than the second sub-frame F12, and the first sub-frame F11 can be a compensation frame. It should be noted that Figure 6 Taking the first color frame Y1 as a red color frame, the second color frame Y2 as a green color frame, and the third color frame Y3 as a blue color frame, that is, the picture sending method of RRGGBB is used as an example for illustration. The present disclosure does not limit this.

[0032] Please refer to Figure 7 , a color frame includes a first sub-frame F11 and a second sub-frame F12. In the first sub-frame F11, the compensation gray-scale voltage V1 received by the pixel electrode and the common electrode drives the liquid crystal to deflect, which is used to accelerate the liquid crystal response. In the second sub-frame F12, the target gray-scale voltage V2 received by the pixel electrode and the common electrode is used to maintain the liquid crystal in the required deflection state to realize picture display. In this way, in a color frame, by delivering the compensation gray-scale voltage V1 to the liquid crystal in the first sub-frame F11 and delivering the target gray-scale voltage V2 to the liquid crystal in the second sub-frame F12, the liquid crystal response time can be shortened, the liquid crystal response speed can be improved, and further problems such as color bleeding and uneven display caused by insufficient liquid crystal response in the display picture can be improved.

[0033] Effect verification: In the conventional image sending method (frame frequency 180HZ), one picture frame F is 16.7 ms, and one picture frame F includes three color frames, and one color frame is about 5.6 ms. Assuming that the response time of the liquid crystal from 0 gray level to 30 gray levels is 4 ms, in one color frame, the time for the first row of the panel to maintain the liquid crystal at 30 gray levels is 5.6 ms - 4 ms = 1.6 ms, and the time for the last row of the panel to maintain 30 gray levels is almost 0 ms. If the display panel 100 provided by the present disclosure is adopted, each color frame includes a first sub-frame F11 and a second sub-frame F12. The time for the liquid crystal to receive the compensation gray level voltage V1 in the first sub-frame F11 is about 2.8 ms, and the time for the liquid crystal to receive the target gray level voltage V2 in the second sub-frame F12 is about 2.8 ms; when the compensation gray level voltage V1 is applied to the liquid crystal in the first sub-frame F11, the inventor has verified through experiments that in this driving method, the response time of the liquid crystal from 0 gray level to 30 gray levels only needs 2 ms. Then, in one color frame, the time for the first row of the display panel 100 to maintain the liquid crystal at 30 gray levels is 2.8 ms * 2 - 2 ms = 3.6 ms, and the time for the liquid crystal in the last row of the display panel 100 to maintain 30 gray levels is at least 0.8 ms. It can be seen that by adopting the display panel 100 provided by the embodiments of the present disclosure, the response time of the liquid crystal can be shortened, the response speed of the liquid crystal can be improved, and the uniformity of the picture display can be enhanced.

[0034] Please continue to refer to Figures 3 to 7 , the present disclosure provides a display panel 100, in at least one of a first color frame Y1, a second color frame Y2, and a third color frame Y3, the compensation gray level voltage V1 of the first sub-frame F11 is higher than the target gray level voltage V2 of the second sub-frame F12.

[0035] Specifically, in an optional embodiment provided by the present disclosure, the display phase of the display panel 100 includes multiple picture frames F. A picture frame F sequentially includes a first color frame Y1, a second color frame Y2, and a third color frame Y3. The first color frame Y1, the second color frame Y2, and the third color frame Y3 in at least one picture frame F all include a first sub-frame F11 and a second sub-frame F12, and the first sub-frame F11 is earlier than the second sub-frame F12. In a color frame, the liquid crystal receives a compensation gray-scale voltage V1 in the first sub-frame F11 and receives a target gray-scale voltage V2 in the second sub-frame F12. The compensation gray-scale voltage V1 of the first sub-frame F11 is higher than the target gray-scale voltage V2 of the second sub-frame F12. That is to say, in a color frame, the compensation gray-scale voltage V1 received by the first sub-frame F11 is higher than the target gray-scale voltage V2 of the second sub-frame F12, which can make the liquid crystal change its arrangement in a shorter time under the action of the higher compensation gray-scale voltage V1 of the first sub-frame F11, reach a predetermined high-brightness gray-scale from a low-brightness gray-scale, accelerate the deflection to a set state, shorten the response time, and improve the display uniformity. Thus, by setting the compensation gray-scale voltage V1 of the first sub-frame F11 to be higher than the target gray-scale voltage V2 of the second sub-frame F12, the response speed of the liquid crystal can be increased and the response time can be shortened.

[0036] It should be noted that, please refer to Figure 3 , the display panel 100 includes a driving chip 20. The driving chip 20 has an OD (Overdrive) function. The OD function is a technology that accelerates the deflection speed of liquid crystal molecules by increasing the voltage or using pulses to control the liquid crystal transformation. By performing Overdrive processing on the data of the first sub-frame F11, that is, sending out the compensation gray-scale voltage V1 in the first sub-frame F11, the initial voltage for driving the liquid crystal to deflect is raised, so that the deflection speed of the liquid crystal is accelerated, thereby shortening the response time. Appropriate Overdrive settings can increase the response speed of the liquid crystal and reduce motion blur and ghosting phenomena.

[0037] Please continue to refer to Figures 3 to 7 , the present disclosure provides a display panel 100. The absolute value of the difference between the compensation gray-scale voltage V1 and the target gray-scale voltage V2 is positively correlated with the gray-scale change degree of at least one of the first color frame Y1, the second color frame Y2, and the third color frame Y3.

[0038] Specifically, the liquid crystal response time is related to the voltage applied to the liquid crystal before and after deflection. Generally, the greater the applied voltage, the faster the liquid crystal deflection. For example, in a color frame, if it is desired to make the liquid crystal reach the a gray level, a frame of a + b gray level voltage (compensation gray level voltage V1) can be sent to the liquid crystal in the first sub-frame F11 to make the liquid crystal reach the a gray level faster; then a frame of a gray level voltage (target gray level voltage V2) is sent in the second sub-frame F12 to make the liquid crystal operate at the a gray level state, and the liquid crystal response is accelerated in this way. It should be noted that the b gray level voltage (the absolute value of the difference between the compensation gray level voltage V1 and the target gray level voltage V2) is positively correlated with the gray level change degree of at least one of the first color frame Y1, the second color frame Y2, and the third color frame Y3, that is, the greater the gray level change degree, the greater the value of the b gray level voltage. The b gray level voltage can be confirmed and debugged according to the actual optical effect. For different a gray level voltages, the corresponding b gray level voltage needs to be debugged and matched to meet the requirements of the response time. Specifically, by debugging different b gray level voltages, the corresponding liquid crystal response time can be measured, and the b gray level voltage with the fastest response is selected as the final setting value.

[0039] In this way, by setting the absolute value of the difference between the compensation gray level voltage V1 and the target gray level voltage V2 to be positively correlated with the gray level change degree of at least one of the first color frame Y1, the second color frame Y2, and the third color frame Y3, the compensation gray level voltage V1 with the fastest response can be selected according to the gray level change degree of the color frame to improve the liquid crystal response speed.

[0040] Please continue to refer to Figures 3 to 7, the present disclosure provides a display panel 100. In a color frame, the duration for which liquid crystal receives a compensation gray-scale voltage V1 in a first sub-frame F11 is the same as the duration for which the liquid crystal receives a target gray-scale voltage V2 in a second sub-frame F12. It can be in the first color frame Y1 that the duration for which liquid crystal receives a compensation gray-scale voltage V1 in a first sub-frame F11 is the same as the duration for which the liquid crystal receives a target gray-scale voltage V2 in a second sub-frame F12; it can be in the second color frame Y2 that the duration for which liquid crystal receives a compensation gray-scale voltage V1 in a first sub-frame F11 is the same as the duration for which the liquid crystal receives a target gray-scale voltage V2 in a second sub-frame F12; it can be in the third color frame Y3 that the duration for which liquid crystal receives a compensation gray-scale voltage V1 in a first sub-frame F11 is the same as the duration for which the liquid crystal receives a target gray-scale voltage V2 in a second sub-frame F12. The present disclosure does not limit this. In a color frame, the duration for which liquid crystal receives a compensation gray-scale voltage V1 in a first sub-frame F11 is the same as the duration for which the liquid crystal receives a target gray-scale voltage V2 in a second sub-frame F12. That is to say, the duration for which the compensation gray-scale voltage V1 is applied to the liquid crystal in the first sub-frame F11 is the same as the duration for which the target gray-scale voltage V2 is applied to the liquid crystal in the second sub-frame F12. The liquid crystal deflects to a set state in the first sub-frame F11 and maintains this deflected state in the second sub-frame F12. By setting the duration for which the compensation gray-scale voltage V1 is applied to the liquid crystal to be the same as the duration for which the target gray-scale voltage V2 is applied to the liquid crystal, the time for the liquid crystal to maintain the set deflected state includes at least the duration of the second sub-frame F12, which is beneficial to improving display uniformity. Thus, by setting the duration for which liquid crystal receives a compensation gray-scale voltage V1 in a first sub-frame F11 to be the same as the duration for which the liquid crystal receives a target gray-scale voltage V2 in a second sub-frame F12, the holding time of the liquid crystal in the set deflected state can be at least half of the duration of a color frame, which is beneficial to improving the stability of the picture display.

[0041] Figure 8 The following is a schematic diagram of the relative duration between a first sub-frame and a second sub-frame provided by an embodiment of the present disclosure. Please refer to Figures 3 to 8 , the present disclosure provides a display panel 100. In a color frame, the duration for which liquid crystal receives a compensation gray-scale voltage V1 in a first sub-frame F11 is less than the duration for which the liquid crystal receives a target gray-scale voltage V2 in a second sub-frame F12.

[0042] Specifically, a picture frame F includes a first color frame Y1, a second color frame Y2, and a third color frame Y3. In the first color frame Y1, the duration for which the liquid crystal receives the compensation gray-scale voltage V1 in the first sub-frame F11 is less than the duration for which it receives the target gray-scale voltage V2 in the second sub-frame F12; or, in the second color frame Y2, the duration for which the liquid crystal receives the compensation gray-scale voltage V1 in the first sub-frame F11 is less than the duration for which it receives the target gray-scale voltage V2 in the second sub-frame F12; or, in the third color frame Y3, the duration for which the liquid crystal receives the compensation gray-scale voltage V1 in the first sub-frame F11 is less than the duration for which it receives the target gray-scale voltage V2 in the second sub-frame F12. It can be understood that the smaller the set duration for which the liquid crystal receives the compensation gray-scale voltage V1 in the first sub-frame F11, the faster the response speed of the liquid crystal and the shorter the time for it to deflect to the set state. Correspondingly, the longer the time for the liquid crystal to remain in the set deflection state, which is more conducive to improving the stability of the picture display. Thus, by setting the duration for which the liquid crystal receives the compensation gray-scale voltage V1 in the first sub-frame F11 to be less than the duration for which it receives the target gray-scale voltage V2 in the second sub-frame F12 in a color frame, the time for the liquid crystal to remain in the set deflection state can be further increased, which is beneficial to the stable display of the picture.

[0043] Figure 9 The following is a schematic diagram of turning on or off a backlight provided by an embodiment of the present disclosure. Please refer to Figures 3 to 9 The present disclosure provides a display panel 100, and the display panel 100 further includes a backlight B. The backlight B does not emit light in the first sub-frame F11 and emits light in the second sub-frame F12.

[0044] Specifically, the display panel 100 includes a plurality of backlights B of different colors. The backlights B of different colors include one of a red backlight B1, a green backlight B2, and a blue backlight B3. When the backlights B of different colors emit light, they can provide backlights of different colors for the corresponding pixel units in the display area. Thus, without setting a color filter structure in the display panel 100, the display surface of the display panel 100 can present a color picture, which is beneficial to improving the light extraction efficiency of the backlight passing through the display panel 100.

[0045] The display panel 100 includes a backlight driving chip, which is configured to control the backlight B not to emit light in the first sub-frame F11 and to emit light in the second sub-frame F12. As described above, the compensation gray-scale voltage V1 of the first sub-frame F11 is higher than the target gray-scale voltage V2 of the second sub-frame F12. In the embodiments of the present disclosure, by applying a voltage higher than its target gray-scale to the liquid crystal in the first sub-frame F11, the liquid crystal can be deflected to the set state as soon as possible. In the first sub-frame F11, since the liquid crystal has not been deflected to the quasi-position and the picture color is still being loaded, the backlight B does not emit light in the first sub-frame F11, which can reduce energy consumption and reduce abnormal display caused by incomplete loading of the picture color. The liquid crystal remains in the set deflected state in the second sub-frame F12, and the picture color loading is completed. The backlight B emits light in the second sub-frame F12, enabling the display panel 100 to obtain a normal picture display. Thus, by setting the backlight B not to emit light in the first sub-frame F11 and to emit light in the second sub-frame F12, energy consumption can be reduced and the stability of the picture display can be improved.

[0046] Please continue to refer to Figure 3 , the present disclosure provides a display panel 100, which includes a plurality of pixel rows 11, and the plurality of pixel rows 11 include a first pixel row 12 and a second pixel row 14; the pixel row 11 includes a plurality of sub-pixels 10. It should be noted that Figure 3 only the case where the display panel 100 includes a plurality of sub-pixels 10 is shown, which does not represent the actual size and number of sub-pixels 10 included in the display panel 100.

[0047] Figure 10 The following is a schematic diagram of the scanning direction of a picture frame provided by the embodiments of the present disclosure. Please refer to Figure 10 , the plurality of picture frames F include a first picture frame F01 and a second picture frame F02. The scanning direction of the display panel 100 in the first picture frame F01 is from the first pixel row 12 to the second pixel row 14, and the scanning direction of the display panel 100 in the second picture frame F02 is from the second pixel row 14 to the first pixel row 12.

[0048] Specifically, when scanning the pixel rows 11 on the display panel 100, the picture from the start of scanning the first pixel row 11 to the completion of scanning the last pixel row 11 is regarded as a frame picture, that is, one frame picture corresponds to one scanning cycle. The scanning direction of the display panel 100 in the first picture frame F01 is from the first pixel row 12 to the second pixel row 14. Optionally, the first pixel row 12 is the first pixel row 11 at the top of the display panel 100, or the first pixel row 12 is the first pixel row 11 at the bottom of the display panel 100. The present disclosure does not limit this. Figure 10Taking the first pixel row 12, which is the first pixel row 11 at the top of the display panel 100, as an example for illustration. The scanning direction of the display panel 100 in the second frame F02 is from the second pixel row 14 to the first pixel row 12. That is, the scanning direction of the second frame F02 is opposite to that of the first frame F01.

[0049] After the liquid crystal is pressurized to the corresponding gray-scale voltage, it takes a certain response time to deflect to the corresponding gray-scale state. Since it takes time to scan from the first pixel row 12 to the second pixel row 14 of the display panel 100, if the conventional scanning method (the scanning direction of each frame F is the same) is adopted, the liquid crystal response time left for the first pixel row 12 is the longest, the liquid crystal response time of the middle pixel rows 11 decreases row by row, and the liquid crystal response time left for the last pixel row 13 is the shortest, resulting in different average brightnesses in different regions of the entire display panel 100 seen by the user. In an optional embodiment provided by the present disclosure, by changing the scanning direction of each frame F as Figure 10 shown once, the liquid crystal response times of different pixel rows 11 of the display panel 100 can be made closer, so that the brightnesses of different regions of the display panel 100 are similar, improving the display uniformity.

[0050] Please continue to refer to Figures 3 to 10 , the present disclosure provides a display panel 100, and the number of the first frame F01 and the second frame F02 is equal.

[0051] Specifically, in an optional embodiment provided by the present disclosure, the display stage of the display panel 100 includes a plurality of frames F. The plurality of frames F include a first frame F01 and a second frame F02. The scanning directions of the first frame F01 and the second frame F02 are opposite, and the number of the first frame F01 and the second frame F02 is equal. In the first frame F01, the scanning direction of the display panel 100 is from the first pixel row 12 to the second pixel row 14, and the liquid crystal response times left for the pixel rows 11 between the first pixel row 12 and the last pixel row 13 decrease in sequence. In the second frame F02, the scanning direction of the display panel 100 is from the second pixel row 14 to the first pixel row 12, and the liquid crystal response times left for the pixel rows 11 between the last pixel row 13 and the first pixel row 12 decrease in sequence; when the number of the first frame F01 and the second frame F02 is equal, during the entire display stage, the sum of the liquid crystal response times left for each pixel row 11 tends to be equal, which can make the brightnesses of different regions of the display panel 100 close, thereby improving the display uniformity. In this way, by setting the number of the first frame F01 and the second frame F02 to be equal, the liquid crystal response times left for each pixel row 11 by the first frame F01 and the second frame F02 can tend to be equal, which is beneficial to improving the display uniformity.

[0052] Please continue to refer to Figures 3 to 10 , the present disclosure provides a display panel 100, where the first pixel row 12 is the first pixel row, and the second pixel row 14 is the last pixel row 13.

[0053] Specifically, the first pixel row 12 may be the first pixel row 11 near the top of the display panel 100, and the second pixel row 14 may be the last pixel row 13 near the bottom of the display panel 100. Alternatively, the first pixel row 12 may be the last pixel row 13 near the bottom of the display panel 100, and the second pixel row 14 may be the first pixel row 11 near the top of the display panel 100. That is, the first pixel row 12 and the second pixel row 14 are the two pixel rows 11 that are farthest apart on the display panel 100. The present disclosure does not limit the specific positions of the first pixel row 12 and the second pixel row 14, as long as the relative position relationship between the first pixel row 12 and the second pixel row 14 is satisfied.

[0054] Please continue to refer to Figures 3 to 10 , the present disclosure provides a display panel 100, where the first picture frame F01 and the second picture frame F02 are adjacent picture frames F.

[0055] Specifically, the display stage of the display panel 100 includes multiple picture frames F, and the multiple picture frames F include a first picture frame F01 and a second picture frame F02. Among them, the first picture frame F01 and the second picture frame F02 are adjacent. In this embodiment, the first picture frame F01 and the second picture frame F02 are regarded as a scanning cycle. Assuming that the scanning method of the first picture frame F01 is from top to bottom, the liquid crystal response time left for each pixel row 11 decreases in turn, and the scanning method of the second picture frame F02 is from bottom to top, and the liquid crystal response time left for each pixel row 11 increases in turn; the sum of the liquid crystal response times left for each pixel row 11 by one first picture frame F01 and an adjacent second picture frame F02 tends to be equal. Further, the liquid crystal response time left for each pixel row 11 in each scanning cycle is approximately equal, which can make the brightness of different pixel rows 11 on the display panel 100 close to each other to improve the display uniformity.

[0056] Please continue to refer to Figures 3 to 10, the present disclosure provides a driving method for a display panel 100. The display stage of the display panel 100 includes multiple picture frames F. A picture frame F sequentially includes a first color frame Y1, a second color frame Y2, and a third color frame Y3; the first color frame Y1, the second color frame Y2, and the third color frame Y3 in at least one picture frame F all include a first sub-frame F11 and a second sub-frame F12, and the first sub-frame F11 is earlier than the second sub-frame F12; the display panel 100 includes liquid crystals. The method includes: in one color frame, providing a compensation gray-scale voltage V1 to the liquid crystals in the first sub-frame F11, and providing a target gray-scale voltage V2 to the liquid crystals in the second sub-frame F12, and the compensation gray-scale voltage V1 is different from the target gray-scale voltage V2.

[0057] Specifically, in an optional embodiment provided by the present disclosure, a picture frame F sequentially includes a first color frame Y1, a second color frame Y2, and a third color frame Y3. Among them, the first color frame Y1 includes a first sub-frame F11 and a second sub-frame F12. The first color frame Y1 is, for example, a red color frame. The red color frame provides a compensation gray-scale voltage V1 to the liquid crystal in the first sub-frame F11, which is used to make the liquid crystal quickly deflect to the set state required for the red color frame. The red color frame provides a target gray-scale voltage V2 to the liquid crystal in the second sub-frame F12, which is used to keep the liquid crystal in the set deflected state. The red backlight B1 corresponding to the red color frame is turned on in the second sub-frame F12. The light emitted by the red backlight B1 can pass through the liquid crystal layer 103 in the set deflected state and reach the light-emitting surface of the display panel 100, realizing the display of the picture of the red color frame. Similarly, the second color frame Y2 includes a first sub-frame F11 and a second sub-frame F12. When the second color frame Y2 is a green color frame, the green color frame provides a compensation gray-scale voltage V1 to the liquid crystal in the first sub-frame F11, which is used to make the liquid crystal quickly deflect to the set state required for the green color frame. The green color frame provides a target gray-scale voltage V2 to the liquid crystal in the second sub-frame F12, which is used to keep the liquid crystal in the set deflected state. The green backlight B2 corresponding to the green color frame is turned on in the second sub-frame F12. The light emitted by the green backlight B2 can pass through the liquid crystal layer 103 in the set deflected state and reach the light-emitting surface of the display panel 100, realizing the display of the picture of the green color frame. Similarly, the third color frame Y3 includes a first sub-frame F11 and a second sub-frame F12. When the third color frame Y3 is a blue color frame, the blue color frame provides a compensation gray-scale voltage V1 to the liquid crystal in the first sub-frame F11, which is used to make the liquid crystal quickly deflect to the set state required for the blue color frame. The blue color frame provides a target gray-scale voltage V2 to the liquid crystal in the second sub-frame F12, which is used to keep the liquid crystal in the set deflected state. The blue backlight B3 corresponding to the blue color frame is turned on in the second sub-frame F12. The light emitted by the blue backlight B3 can pass through the liquid crystal layer 103 in the set deflected state and reach the light-emitting surface of the display panel 100, realizing the display of the picture of the blue color frame. The display of the pictures of the red color frame, the green color frame, and the blue color frame can finally realize the display of a picture frame F.

[0058] Figure 11 The following is a schematic connection diagram of a display device provided by an embodiment of the present disclosure. Please refer to Figure 11, the present disclosure provides a display device 200, including the display panel 100 as described above. Specifically, the display device 200 further includes a driving controller 40, a backlight module 30, and a driving module 50. The backlight module 30 is located on one side of the display panel 100 and is configured to provide backlight for the display panel 100. The driving module 50 is connected to the display panel 100. The driving module 50 includes devices such as a driving chip and a timing controller, and is configured to provide power for the display panel 100 and process the received display data, such as Overdrive setting, forward and reverse scan control, and picture display data. The driving controller 40 can be respectively connected to the bonding terminals of the driving module 50 and the backlight module 30, and is capable of respectively providing corresponding control signals for the driving module 50 and the backlight module 30. Specifically, the driving controller 40 is configured to send display data to the driving module 50 to drive the liquid crystal deflection in the display panel 100, and the driving controller 40 is further configured to provide an on or off signal for the backlight module 30. Through the above embodiments, it can be seen that the display panel, driving method, and display device provided by the present invention at least achieve the following beneficial effects:

[0059] The present invention provides a display panel. The display stage of the display panel includes a plurality of picture frames. One picture frame sequentially includes a first color frame, a second color frame, and a third color frame. The first color frame, the second color frame, and the third color frame in at least one picture frame each include a first sub-frame and a second sub-frame, and the first sub-frame is earlier than the second sub-frame. The display panel includes liquid crystal. In one color frame, the liquid crystal receives a compensation gray-scale voltage in the first sub-frame and receives a target gray-scale voltage in the second sub-frame, and the compensation gray-scale voltage is different from the target gray-scale voltage. In one color frame, by delivering the compensation gray-scale voltage to the liquid crystal in the first sub-frame and delivering the target gray-scale voltage to the liquid crystal in the second sub-frame, and the compensation gray-scale voltage in the first sub-frame is different from the target gray-scale voltage in the second sub-frame, the liquid crystal response time can be shortened, the liquid crystal response speed can be improved, the liquid crystal can be deflected to the target gray-scale at a faster speed, and problems such as color bleeding and uneven display caused by insufficient liquid crystal response can be improved.

[0060] It should be noted that in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the above-mentioned element.

[0061] The above are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments described above, but rather will conform to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that: The display stage of the display panel includes a plurality of picture frames, and one of the picture frames includes a first color frame, a second color frame and a third color frame in sequence; The first color frame, the second color frame, and the third color frame in at least one of the picture frames all include a first subframe and a second subframe, and the first subframe is earlier than the second subframe; The display panel includes liquid crystal, and in one color frame, the liquid crystal receives a compensation grayscale voltage in the first subframe and receives a target grayscale voltage in the second subframe, the compensation grayscale voltage being different from the target grayscale voltage.

2. The display panel according to claim 1, characterized in that: In at least one of the first color frame, the second color frame, and the third color frame, the compensated grayscale voltage of the first subframe is higher than the target grayscale voltage of the second subframe.

3. The display panel according to claim 2, characterized in that: An absolute value of a difference between the compensation grayscale voltage and the target grayscale voltage is positively correlated with a grayscale change degree of at least one of the first color frame, the second color frame, and the third color frame.

4. The display panel according to claim 1, characterized in that: In a color frame, the duration for which the liquid crystal receives the compensation grayscale voltage in the first subframe is the same as the duration for which the liquid crystal receives the target grayscale voltage in the second subframe.

5. The display panel according to claim 1, characterized in that: In a color frame, a time duration during which the liquid crystal receives the compensation gray-scale voltage in the first sub-frame is shorter than a time duration during which the liquid crystal receives the target gray-scale voltage in the second sub-frame.

6. The display panel according to claim 1, characterized in that: The display panel further includes a backlight source, which does not emit light in the first subframe and emits light in the second subframe.

7. The display panel according to claim 1, characterized in that: The display panel includes a plurality of pixel rows, wherein the plurality of pixel rows include a first pixel row and a second pixel row; The plurality of picture frames include a first picture frame and a second picture frame. The scanning direction of the display panel in the first picture frame is from the first pixel row to the second pixel row. The scanning direction of the display panel in the second picture frame is from the second pixel row to the first pixel row.

8. The display panel according to claim 7, characterized in that: The number of the first picture frames is equal to the number of the second picture frames.

9. The display panel according to claim 7, characterized in that: The first pixel row is a first pixel row, and the second pixel row is a last pixel row.

10. The display panel according to claim 7, characterized in that: The first picture frame and the second picture frame are adjacent picture frames.

11. A method for driving a display panel, characterized in that: The display stage of the display panel includes a plurality of picture frames, one of the picture frames includes a first color frame, a second color frame and a third color frame in sequence; the first color frame, the second color frame and the third color frame in at least one of the picture frames all include a first subframe and a second subframe, and the first subframe is earlier than the second subframe; The display panel includes liquid crystal; The method comprises: In one color frame, a compensation grayscale voltage is provided to the liquid crystal in the first subframe, and a target grayscale voltage is provided to the liquid crystal in the second subframe, wherein the compensation grayscale voltage is different from the target grayscale voltage.

12. A display device, characterized in that: A display panel comprising any one of claims 1 to 10.

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