WO2020155990A1

WO2020155990A1 - Display panel driving method and display device

Info

Publication number: WO2020155990A1
Application number: PCT/CN2019/129295
Authority: WO
Inventors: 单剑锋
Original assignee: 惠科股份有限公司
Priority date: 2019-01-30
Filing date: 2019-12-27
Publication date: 2020-08-06
Also published as: CN109584837A

Abstract

A display panel driving method and a display device. The method comprises: obtaining a first preset scanning signal and a second preset scanning signal, a conduction duration of the first preset scanning drive signal being less than that of the second preset scanning drive signal (S10); taking the period during which two rows of adjacent sub-pixels are scanned as a drive period, and driving, within the drive period, even-numbered columns of sub-pixels in the first row of pixel units and odd-numbered columns of sub-pixels in the adjacent row of pixel units by using the first preset scanning drive signal (S20); and driving, within the drive period, odd-numbered columns of sub-pixels in the first row of pixel units and even-numbered columns of sub-pixels in the adjacent row of pixel units by using the second preset scanning drive signal (S30).

Description

Driving method of display panel and display device

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 201910095053.9, and the invention title is "Display Panel Driving Method and Display Device" on January 30, 2019, the entire content of which is incorporated into the application by reference .

Technical field

This application relates to the field of liquid crystal display technology, and in particular to a driving method of a display panel and a display device.

Background technique

The statements here only provide background information related to this application, and do not necessarily constitute prior art.

Most of the current large-size liquid crystal display panels are negative vertical alignment (Vertical Alignment, VA) liquid crystal or in-plane conversion (In-Plane Switching, IPS) liquid crystal. Comparing VA liquid crystal technology with IPS liquid crystal technology, we can find that VA liquid crystal technology has higher production efficiency and lower manufacturing cost, but it is inferior to IPS liquid crystal technology in terms of optical properties. Obvious defects in optical properties, especially when applied to large-size display panels, in order to improve the color shift problem of VA liquid crystal, the sub-pixels are divided into main pixels and sub-pixels in one embodiment. This division When designing pixels, it is necessary to redesign metal traces or thin film transistor (Thin Film Transistor, TFT) elements to drive the sub-pixels, which will cause the sacrifice of the light-transmitting opening area, and then affect the panel transmittance.

Therefore, the current color cast solution will affect the panel transmittance and cannot improve the color cast phenomenon well.

Technical solutions

The main purpose of this application is to propose a method for driving a display panel and a display device, aiming to effectively improve the color shift phenomenon without affecting the transmittance of the panel.

To achieve the above objective, the present application provides a driving method of a display panel, the display panel includes a display array, the display array includes pixel units arranged in an array; the driving method of the display panel includes:

Acquiring a first preset scan driving signal and a second preset scan driving signal, the conduction duration of the first preset scan driving signal is less than the conduction duration of the second preset scan driving signal;

Taking the scanning of two adjacent rows of sub-pixels as the driving cycle, the even-numbered columns of sub-pixels in the first row of pixel units and the odd-numbered columns of sub-pixels in the adjacent row of pixel units in the driving cycle adopt the first preset scan Drive signal to drive; and

The odd-numbered column of sub-pixels in the first row of pixel units and the even-numbered column of sub-pixels in the adjacent row of pixel units in the driving period are driven by using the second preset scan driving signal.

In addition, in order to achieve the above object, the present application also proposes a driving method of a display panel, the display panel includes a display array, the display array includes pixel units arranged in an array; the driving method of the display panel includes:

Acquire a first preset scan drive signal, a second preset scan drive signal, and a preset data drive signal, the conduction duration of the first preset scan drive signal is less than the conduction duration of the second preset scan drive signal , So that the driving time of the first preset scan driving signal corresponding to the preset data driving signal is shorter than the driving time of the second preset scan driving signal corresponding to the preset data driving signal;

The first preset scan drive signal and the second preset scan drive signal for scanning sub-pixels in the same row in the pixel unit are arranged in an interleaved arrangement, so that the sub-pixels in the same row share the first preset scan drive signal and The second preset scanning driving signal;

In addition, in order to achieve the above object, this application also proposes a display device, the display device comprising: a display panel, a memory, a processor, and a driver for the display panel stored in the memory and running on the processor A program, the display panel includes a display array, the display array includes pixel units arranged in an array, and the driver of the display panel is configured to implement the steps of the driving method of the display panel as described above.

In this application, by acquiring the first preset scan driving signal and the second preset scan driving signal, the conduction duration of the first preset scan driving signal is less than the conduction duration of the second preset scan driving signal, and the The even-numbered columns of sub-pixels in the first row of pixel units and the odd-numbered columns of sub-pixels in the adjacent row of pixel units in the cycle are driven by the first preset scan driving signal, and the odd-numbered columns of sub-pixels and phases in the first row of pixel units The sub-pixels in the even-numbered columns in the adjacent row of pixel units are driven by the second preset scan driving signal, so that the conduction durations of the two scan driving signals are different, and the charging capabilities of the sub-pixels on the two scan driving signals are different. , It is realized that adjacent sub-pixels are driven by the driving mode of high and low voltage interleaved arrangement, thereby achieving the purpose of reducing color shift.

Description of the drawings

FIG. 1 is a schematic diagram of a display device structure of a hardware operating environment involved in a solution of an embodiment of the present application;

FIG. 2a is a schematic structural diagram of an embodiment of an exemplary display array;

FIG. 2b is a schematic diagram of driving timing of an exemplary display array;

FIG. 3a is a schematic structural diagram of an embodiment of the display array of this application;

FIG. 3b is a schematic diagram of the driving sequence of an embodiment of the display array of this application;

4 is a schematic flowchart of an embodiment of a driving method for a display panel of the present application;

FIG. 5 is a schematic diagram of a driving sequence of another embodiment of the display array of this application;

6a is a schematic structural diagram of another embodiment of the display array of this application;

FIG. 6b is a schematic diagram of a driving sequence of another embodiment of the display array of this application;

FIG. 7 is a schematic structural diagram of another embodiment of the display array of this application;

8 is a schematic structural diagram of another embodiment of the display array of this application;

FIG. 9 is a schematic structural diagram of an embodiment of a display device of this application.

The realization, functional characteristics, and advantages of the purpose of this application will be further described in conjunction with the embodiments and with reference to the drawings.

Embodiments of the invention

It should be understood that the specific embodiments described here are only used to explain the application, and not to limit the application.

Referring to FIG. 1, FIG. 1 is a schematic diagram of a display panel structure of a hardware operating environment involved in a solution of an embodiment of the present invention.

As shown in FIG. 1, the display panel may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to implement connection and communication between these components. The user interface 1003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a magnetic disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001, and the display panel 1006 may be a liquid crystal display panel, or other display panels that can implement the same or similar functions.

Those skilled in the art can understand that the structure of the display panel shown in FIG. 1 does not constitute a limitation on the display panel, and may include more or fewer components than shown in the figure, or a combination of certain components, or different component arrangements.

As shown in FIG. 1, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a driver for a display panel.

In the display panel shown in FIG. 1, the network interface 1004 is mainly used to connect to the network and communicate with the Internet; the user interface 1003 is mainly used to connect to the user terminal and communicate with the terminal; the display panel of the present invention is called by the processor 1001 The drive program of the display panel is stored in the memory 1005 and executes the drive method of the display panel.

Based on the above hardware structure, an embodiment of the driving method of the display panel of the present invention is proposed.

2a is a schematic structural diagram of an exemplary display array, the original liquid crystal display panel is designed to scan driving signals through the same row of sub-pixels, and the scan driving signals for each row are as shown in the driving timing diagram of the display array illustrated in FIG. 2b, where Vg1, Vg2, Vg3 Etc. means that the drive voltages of the scan drive signals in each row are the same, and the relative timing and overlap time of the scan drive signal relative to the data drive signal timing are the same, so each sub-pixel has the same charging ability. In order to solve the color shift problem, high-voltage sub-pixels and low-voltage sub-pixels need to be interleaved to improve the color shift. Therefore, the data driving voltage Vgd needs to be driven in sequence according to the high and low voltage requirements of each sub-pixel, as shown in Figure 2a. The high-voltage sub-pixel driving voltage VGd_1 is next to the next adjacent low-voltage sub-pixel VGd_2. The sub-pixels in the same column are driven by high-voltage and low-voltage sub-pixel signals in sequence. In addition to the difference in the driving signal, if the two adjacent sub-pixels are driven together The characteristics are different. As the resolution of the panel increases, the number of sub-pixels in the same row increases, which will increase the driving frequency and increase the load of the driving IC, which increases the power consumption of the driving IC and the risk of increasing the temperature of the driving IC.

3a is a schematic diagram of the structure of an embodiment of the display array of this embodiment, and FIG. 3b is a schematic diagram of the driving sequence corresponding to the display array of this embodiment. The display panel of the display array may be a liquid crystal display panel, or may be other to achieve the same Or a display panel with similar functions. This embodiment does not limit this. In this embodiment, a liquid crystal display panel is taken as an example for description. The display panel includes a display array, and the display array includes pixel units arranged in an array. , The pixel unit includes a first pixel unit and a second pixel unit, the first pixel unit and the second pixel unit are alternately arranged in a first direction and a second direction, and the pixel unit includes a first sub-pixel , The second sub-pixel and the third sub-pixel, the first, second, and third sub-pixels correspond to the red sub-pixel (R), the green sub-pixel (G), and the blue sub-pixel (B), respectively ), wherein the first direction is a row direction, the second direction is a column direction, and the first pixel unit and the second pixel unit have opposite polarities.

Referring to FIG. 4, FIG. 4 is a schematic flowchart of a first embodiment of a driving method of a display panel of the present invention.

In the first embodiment, the driving method of the display panel includes the following steps:

Step S10, acquiring a first preset scan driving signal and a second preset scan driving signal, the conduction duration of the first preset scan driving signal is less than the conduction duration of the second preset scan driving signal so that all The driving time of the first preset scan driving signal corresponding to the preset data driving signal is shorter than the driving time of the second preset scan driving signal corresponding to the preset data driving signal.

It should be noted that, as shown in FIG. 3a, the first preset scan drive signal is Vg1, the second preset scan drive signal is Vg2, and the conduction time of the first preset scan drive signal is △ t1, the on-time of the second preset scanning driving signal is Δt2, Δt1<Δt2, Vgh1 represents the high voltage signal of the first scanning driving signal, Vgl1 represents the low voltage signal of the first scanning driving signal, Vgh2 It represents the high voltage signal of the second scan driving signal, and Vgl2 represents the low voltage signal of the second scan drive signal.

Step S20, taking the scanning of two adjacent rows of sub-pixels as the driving period, and adopting the first row of even-numbered sub-pixels in the first row of pixel units and odd-numbered columns of sub-pixels in the adjacent row of pixel units in the driving period. The scanning drive signal is preset to drive.

It should be noted that, as shown in FIG. 3a and the corresponding 3b drive timing, in order to realize that the adjacent R, G, and B sub-pixels are arranged in a high and low voltage interleaved driving arrangement, Vg1 is a row of even-numbered sub-pixels and an adjacent row of odd-numbered sub-pixels. The pixels share the scan driving circuit and scan driving signal. Vg2 is the same as Vg1 for one row of odd-numbered column sub-pixels and the adjacent row of even-numbered column sub-pixels. The polarities of the adjacent sub-pixels are set to opposite polarities, and the sub-pixels in the same row and in the same column are driven by a dot inversion driving method, and the conduction time of control Vg1 is compared with the conduction time of Vg2 for the data driving signal. The on-time is relatively small for the data driving signal, so that the charging ability of the sub-pixel corresponding to the Vg1 scan driving signal becomes worse, and the charging ability of the sub-pixel corresponding to the Vg2 scan driving signal becomes stronger, so as to achieve high-voltage sub-pixel charging and low-voltage sub-pixel charging The purpose of secondary charging is to achieve the effect of improving color cast.

In step S30, the odd-numbered column of sub-pixels in the first row of pixel units and the even-numbered column of sub-pixels in the adjacent row of pixel units in the driving cycle are driven by using the second preset scan driving signal.

It can be understood that the control Vg1 scan switch timing relative to the charging signal of the data drive signal is shorter than the Vg2 scan switch timing relative to the on-time of the data drive signal, which can make the Vg1 scan drive circuit corresponding to the sub-pixel charging capacity If it becomes worse, the charging ability of the sub-pixels corresponding to the Vg2 scan line becomes stronger, so as to achieve the difference between high-voltage sub-pixel charging and low-voltage sub-pixel charging, thereby achieving the effect of improving the color shift.

In this embodiment, by acquiring the first preset scan driving signal and the second preset scan driving signal, the conduction duration of the first preset scan driving signal is less than the conduction duration of the second preset scan driving signal, and In the driving cycle, the even-numbered columns of sub-pixels in the first row of pixel units and the odd-numbered columns of sub-pixels in the adjacent row of pixel units are driven by the first preset scan driving signal, and the odd-numbered columns of sub-pixels in the first row of pixel units and Even-numbered columns of sub-pixels in adjacent rows of pixel units are driven by the second preset scan driving signal, so that the conduction time of the two scan driving signals is different, and the charging capacity of the sub-pixels on the two scan driving signals is different. The difference is that the adjacent sub-pixels are driven by a driving mode of high and low voltage interleaved arrangement, so as to achieve the purpose of reducing color shift.

In an embodiment, before the step S10, the method further includes:

The first preset scan drive signal and the second preset scan drive signal for scanning sub-pixels in the same row in the pixel unit are arranged in an interleaved arrangement, so that the sub-pixels in the same row share the first preset scan drive signal and The second preset scan driving signal, and after the step S20, the method further includes:

A preset data drive signal is acquired, and two adjacent sub-pixels in the same column in the pixel unit are driven by the same preset data drive signal.

It can be understood that, as shown in FIG. 3b, the positive driving signals of the sub-pixels in row G are VG1, VG2, VG3..., and the negative driving signals are VG1', VG2', VG3'.... When driving, the equivalent driving voltage VGd_1 of the high-voltage sub-pixel is the positive driving signal Vgd=VG1 corresponding to the switching timing △t2 of the Vg2 scanning driving signal, and the next adjacent low-voltage sub-pixel VGd_2 is the negative polarity The driving voltage Vgd=VG1', corresponding to the switching timing of the scan driving signal of Vg1 Δt1, Δt1<Δt2, the equivalent driving voltage VGd_1>VGd_2. In the same way, the high-voltage sub-pixel equivalent driving voltage VGd_3 is the positive driving signal Vgd=VG2 corresponding to the switching timing △t2 of the Vg2 scanning driving signal, and the next adjacent low-voltage sub-pixel VGd_4 is the negative driving voltage Vgd= VG2' corresponds to the switching timing of the scan driving signal of Vg1 △t1, △t1<△t2, the equivalent drive voltage VGd_3> VGd_4, so that adjacent sub-pixels in the same column are driven by high and low voltage interleaved arrangements to reduce color Partial purpose.

In an embodiment, before the obtaining the preset data driving signal and driving two adjacent sub-pixels in the same column in the pixel unit using the same preset data driving signal, the method further includes:

Acquire historical driving signals of two adjacent sub-pixels in the same column, and set the preset data driving signal as an average value of the historical driving signals.

It should be noted that the historical driving signal is the historical driving signal of two sub-pixels adjacent to the same column is the driving signal of two adjacent sub-pixels in the same column before the improvement, and the equivalent driving voltage VGd_1 for two adjacent sub-pixels in the same column The equivalent voltages of VGd_2 and VGd_2 are driven by the positive driving voltage Vgd=VG1 and the negative driving voltage Vgd=VG1'. The positive driving voltage VG1 and the negative driving voltage VG1' can be selected as the original pixel signals Gd1 and Gd2. The average signal is a 0~255 signal in terms of an 8-bit driving signal, that is, G1=(Gd1+Gd2)/2, and the G1 signal corresponds to the positive driving voltage VG1 and the negative driving voltage VG1'. The equivalent voltages of VGd_3 and VGd_4 are driven by the positive driving voltage Vgd=VG2 and the negative driving voltage Vgd=VG2' respectively, and they can be selected as the average signal of the original frame pixel signal Gd3 and Gd4 signal, which is based on the 8-bit driving signal It is a 0~255 signal, that is, G2=(Gd3+Gd4)/2, the positive driving voltage VG2 and the negative driving voltage VG2' corresponding to the G2 signal, so as to achieve the purpose of frequency reduction.

In an embodiment, after the step S10, the method further includes:

Receiving the inversion signal, and inverting the first preset scan driving signal, the second preset scan driving signal, and the preset data driving signal according to the inversion signal to obtain the inverted first preset scan driving signal, The inverted second preset scan drive signal and the inverted preset data drive signal, so that the on-duration of the inverted first preset scan drive signal is longer than the inverted second Preset the on-time of the scan driving signal.

Continuing with the sequence of 3b, the sub-pixels in column G in the figure, where the sub-pixels in columns R and B are the same, the scan driving voltages corresponding to the high-voltage sub-pixels VGd_1, VGd_3, and VGd_5 are the scan driving voltages corresponding to Vg2 and the low-voltage sub-pixels VGd_2, VGd_4, VGd_6 The driving voltage is Vg1, where the switching timing of the Vg1 scan driving signal for the charging signal of the data driving signal is shorter than the switching timing of the Vg2 scan driving signal for the charging signal of the data driving signal.

In this embodiment, with the reversal of the drive signal, the scan drive signal switch can also be switched for the data drive signals △t1 and △t2, that is, the scan drive signal switching timing of Vg1 is △t2, Vg2 for the data drive signal. The scanning drive signal switching timing is Δt1 for the data drive signal, so that sub-picture pixels with different timings and different high and low voltage signals can be realized, and the difference between high-voltage sub-pixels and low-voltage sub-pixels will not be obvious to the naked eye. There is a problem of decreased resolution.

In an embodiment, after the step S10, the method further includes:

The high-voltage drive signal in the first preset scan drive signal and the high-voltage drive signal in the second preset scan drive signal are driven with different drive voltages, and the first preset scan drive signal The low voltage driving signal in and the second preset scanning driving signal low voltage driving signal are driven by different driving voltages.

As shown in FIG. 5, a schematic structural diagram of another embodiment of the display array is provided. In addition to adjusting the on-time of the scan signal, the scan driving signal can also be adjusted to achieve different charging effects. As shown in FIG. 5, the first scan driving signal The high voltage Vgh1 is different from the high voltage Vgh2 of the second scan driving signal, and the low voltage Vgl1 of the first scan driving signal is different from the high voltage Vgl2 of the second scan driving signal, thus forming a chamfered pair voltage va1 and va2. The parasitic capacitance causes the scan driving signal to be distorted, so the corresponding angle-chamfering electrical design is needed to achieve the improvement of the in-plane uniformity. Because va1 is different from va2, that is, △t1_1/ △t1_2 is different from △t2_1/ △t2_2, resulting in adjacent rows The charging capabilities of the pixel units are different, so that adjacent pixel units in the same column are driven by an interleaved arrangement of high-voltage pixel units and low-voltage pixel units, thereby achieving the purpose of reducing color shift.

Referring to the schematic structural diagram of still another embodiment of the display array shown in FIG. 6a and the timing driving schematic diagram of another embodiment of the display array shown in FIG. 6b, before the step S10, the method further includes:

Set the polarities of two adjacent sub-pixels in the same row and the same column to opposite polarities, and drive the sub-pixels in the same row and the same column in a dot inversion driving mode; or set the two adjacent sub-pixels in the same row Set the polarity of the two adjacent sub-pixels in the same column to the opposite polarity, and set the polarities of two adjacent sub-pixels in the same column to the same polarity. The sub-pixels in the same row and the sub-pixels in the same column are driven by column inversion. drive.

As shown in FIG. 6a, a schematic diagram of the structure of another embodiment of the display array is provided, and as shown in FIG. 6b, a schematic diagram of timing driving of another embodiment of the display array is provided. Pixel positive polarity driving signal Vgd=VG1, VG2, VG3..... Sub-pixel negative polarity driving signal Vgd=VG1', VG2', VG3'... When driving, the high-voltage sub-pixel equivalent driving voltage VGd_1 is the positive driving signal Vgd=VG1 and Vg2 scan switch timing △t2 charging timing, the next adjacent low-voltage sub-pixel VGd_2 is the positive driving voltage Vgd =VG1 The charging sequence of the switching sequence △t1 with the Vg1 scanning drive signal, where △t1<△t2, the equivalent drive voltage VGd_1>VGd_2. In the same way, the high-voltage sub-pixel equivalent driving voltage VGd_3 is the positive driving signal Vgd=VG2 and the charging timing of the Vg2 gate switching timing △t2, and the next adjacent low-voltage sub-pixel VGd_4 is the positive driving voltage Vgd= VG2 and Vg1 gate switching timing △t1 charging sequence, where △t1 <△t2, the equivalent driving voltage VGd_3> VGd_4, so that adjacent sub-pixels in the same column are driven by high and low voltage interleaved arrangements to reduce color shift the goal of.

Referring to FIG. 7 to provide a schematic structural diagram of still another embodiment of the display array, the pixel unit includes a first pixel unit and a second pixel unit. Before the step S10, the method further includes:

The first pixel unit and the second pixel unit are alternately arranged in the column direction, wherein the first pixel unit includes red sub-pixels, green sub-pixels, blue sub-pixels and white sub-pixels arranged in sequence in the row direction, The second pixel unit includes blue sub-pixels, white sub-pixels, red sub-pixels, and green sub-pixels sequentially arranged in the row direction.

As shown in Figure 7, it is proposed to use WRGB sub-pixels as high and low voltage driving methods to improve color shift. Sub-pixels in the same column are driven in an interleaved arrangement of Vg1 and Vg2, and sub-pixels in the same column are driven by a preset data drive signal Vgd. , The polarities of adjacent sub-pixels in the same column and in the same row are reversed, and the high and low voltages of each sub-pixel of WRGB are interleaved and inverted by the dot inversion driving method, so as to realize the high-voltage sub-pixel and low-voltage sub-pixel of four sub-pixels The interleaved arrangement allows the adjacent sub-pixels in the same column to be driven in a high and low voltage interleaved arrangement to achieve the purpose of reducing color shift.

As shown in Figure 8, it is proposed to use WRGB sub-pixels as high and low voltage drive to improve the color shift. Sub-pixels in the same column are driven in an interleaved arrangement of Vg1 and Vg2, and sub-pixels in the same column are driven by a preset data drive signal Vgd. , The polarities of the adjacent sub-pixels in the same column are the same and the polarities of the adjacent sub-pixels in the same row are opposite. The high and low voltages of each sub-pixel of WRGB are interleaved and arranged, and the column inversion driving mode is used to invert, so as to realize the high The interleaved arrangement of voltage sub-pixels and low-voltage sub-pixels allows adjacent sub-pixels in the same column to be driven in a high-low voltage interleaved arrangement to achieve the purpose of reducing color shift.

In addition, an embodiment of the present application also proposes a display device. As shown in FIG. 9, the display device includes: a display panel 200, a memory, a processor, and a display device that is stored on the memory and can run on the processor. The driver program of the display panel 200, the display panel 200 includes a display array 100, and the driver program of the display panel 200 is configured to implement the steps of the driving method embodiment of the display panel 200 as described above. The display panel 200 also It includes a scanning circuit 210 and a driving circuit 220. The scanning circuit 210 is configured to output scan driving signals, generally scanning the pixel units row by row, and the driving circuit 220 is configured to output data driving signals so that the pixel units receive when scanned. Drive data for display.

The display panel 200 may refer to the above-mentioned embodiment. By acquiring the first preset scan driving signal and the second preset scan driving signal, the conduction time of the first preset scan driving signal is shorter than the second preset scan driving signal. The even-numbered column of sub-pixels in the first row of pixel units and the odd-numbered columns of sub-pixels in the adjacent row of pixel units in the driving cycle are driven by the first preset scan driving signal, and the first row of pixel units The odd-numbered column sub-pixels in and the even-numbered column sub-pixels in the adjacent row of pixel units are driven by the second preset scan driving signal, so that the conduction time of the two scan driving signals is different, and the two scan driving signals are The charging ability of the sub-pixels is different, and the adjacent sub-pixels are driven by the driving mode of high and low voltage interleaved arrangement, so as to reduce the color shift

It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements not only includes those elements, It also includes other elements that are not explicitly listed, or elements inherent to the process, method, article, or system. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article or system that includes the element.

The serial numbers of the foregoing embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, hardware can also be used, but in many cases the former is better.的实施方式。 Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM) as described above. , Magnetic disk, optical disk), including several instructions to make a terminal device (can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present application.

The above are only optional embodiments of this application, and do not limit the scope of this application. Any equivalent structure or equivalent process transformation made by using the description and drawings of this application, or directly or indirectly applied to other related technologies In the same way, all fields are included in the scope of patent protection of this application.

Claims

A driving method of a display panel, wherein the display panel includes a display array, and the display array includes pixel units arranged in an array; the driving method of the display panel includes:

Acquiring a first preset scan driving signal and a second preset scan driving signal, the conduction duration of the first preset scan driving signal is less than the conduction duration of the second preset scan driving signal;

Taking the scanning of two adjacent rows of sub-pixels as the driving cycle, the even-numbered columns of sub-pixels in the first row of pixel units and the odd-numbered columns of sub-pixels in the adjacent row of pixel units in the driving cycle adopt the first preset scan Drive signal to drive; and

The odd-numbered column of sub-pixels in the first row of pixel units and the even-numbered column of sub-pixels in the adjacent row of pixel units in the driving period are driven by using the second preset scan driving signal.
3. The method for driving a display panel according to claim 1, wherein before said obtaining the first preset scan driving signal and the second preset scan driving signal, the method further comprises:

The first preset scan driving signal and the second preset scan driving signal for scanning the sub-pixels in the same row are set in an interleaved arrangement.
The method for driving a display panel according to claim 1, wherein the scanning of two adjacent rows of sub-pixels is used as a driving cycle, and the even-numbered columns of sub-pixels and phases in the first row of pixel units in the driving cycle are The odd-numbered columns of sub-pixels in the adjacent row of pixel units are driven by the first preset scan driving signal, and the odd-numbered columns of sub-pixels in the first row of pixel units in the driving period and the even-numbered columns of sub-pixels in the adjacent row of pixel units are driven After driving by using the second preset scan driving signal, the method further includes:

A preset data drive signal is acquired, and two adjacent sub-pixels in the same column in the pixel unit are driven by the same preset data drive signal.
The method for driving a display panel according to claim 3, wherein before said obtaining a preset data driving signal, two adjacent sub-pixels in the same column in the pixel unit are driven by the same preset data driving signal, The method also includes:

Acquire historical driving signals of two adjacent sub-pixels in the same column, and set the preset data driving signal as an average value of the historical driving signals.
The driving method of the display panel according to claim 1, wherein the first preset scan driving signal and the second preset scan driving signal are acquired, and the conduction time of the first preset scan driving signal is shorter than the After the second predetermined conduction time of the scan driving signal, the method further includes:

Receiving the inversion signal, and inverting the first preset scan driving signal, the second preset scan driving signal, and the preset data driving signal according to the inversion signal to obtain the inverted first preset scan driving signal, The inverted second preset scan drive signal and the inverted preset data drive signal, so that the on-duration of the inverted first preset scan drive signal is longer than the inverted second Preset the on-time of the scan driving signal.
3. The method for driving a display panel according to claim 1, wherein after the obtaining the first preset scan driving signal and the second preset scan driving signal, the method further comprises:

Driving the high voltage driving signal in the first preset scan driving signal and the high voltage driving signal in the second preset scan driving signal using different driving voltages; and

The low voltage drive signal in the first preset scan drive signal and the low voltage drive signal of the second preset scan drive signal are driven by using different drive voltages.
3. The method for driving a display panel according to claim 1, wherein before said obtaining the first preset scan driving signal and the second preset scan driving signal, the method further comprises:

Set the polarities of two adjacent sub-pixels in the same row and the same column to opposite polarities, and drive the sub-pixels in the same row and the same column in a dot inversion driving mode; or

The polarities of two adjacent sub-pixels in the same row are set to opposite polarities, and the polarities of two adjacent sub-pixels in the same column are set to the same polarity. The pixels are driven by a column inversion driving method.
The driving method of the display panel according to claim 1, wherein the pixel unit includes a first pixel unit and a second pixel unit;

Before the acquiring the first preset scan driving signal and the second preset scan driving signal, the method further includes:

The first pixel unit and the second pixel unit are alternately arranged in the column direction, wherein the first pixel unit includes red sub-pixels, green sub-pixels, blue sub-pixels and white sub-pixels arranged in sequence in the row direction, The second pixel unit includes blue sub-pixels, white sub-pixels, red sub-pixels, and green sub-pixels sequentially arranged in the row direction.
A driving method of a display panel, wherein the display panel includes a display array, and the display array includes pixel units arranged in an array; the driving method of the display panel includes:

Acquire a first preset scan drive signal, a second preset scan drive signal, and a preset data drive signal, the conduction duration of the first preset scan drive signal is less than the conduction duration of the second preset scan drive signal , So that the driving time of the first preset scan driving signal corresponding to the preset data driving signal is shorter than the driving time of the second preset scan driving signal corresponding to the preset data driving signal;

The first preset scan drive signal and the second preset scan drive signal for scanning sub-pixels in the same row in the pixel unit are arranged in an interleaved arrangement, so that the sub-pixels in the same row share the first preset scan drive signal and The second preset scanning driving signal;

Taking the scanning of two adjacent rows of sub-pixels as the driving cycle, the even-numbered columns of sub-pixels in the first row of pixel units and the odd-numbered columns of sub-pixels in the adjacent row of pixel units in the driving cycle adopt the first preset scan Drive signal to drive; and

The odd-numbered column of sub-pixels in the first row of pixel units and the even-numbered column of sub-pixels in the adjacent row of pixel units in the driving period are driven by using the second preset scan driving signal.
[Corrected according to Rule 91 16.01.2020]

A display device, wherein the display device includes a display panel, a processor, and a non-volatile memory, the non-volatile memory stores executable instructions, the processor executes the executable instructions, and the Executable instructions include:

Acquiring a first preset scan driving signal and a second preset scan driving signal, the conduction duration of the first preset scan driving signal is less than the conduction duration of the second preset scan driving signal;

Taking the scanning of two adjacent rows of sub-pixels as the driving cycle, the even-numbered columns of sub-pixels in the first row of pixel units and the odd-numbered columns of sub-pixels in the adjacent row of pixel units in the driving cycle adopt the first preset scan Drive signal to drive; and

The odd-numbered column of sub-pixels in the first row of pixel units and the even-numbered column of sub-pixels in the adjacent row of pixel units in the driving period are driven by using the second preset scan driving signal.
The display device according to claim 10, wherein the executable instruction further comprises:

The charging capability of the sub-pixel corresponding to the first scan driving signal is smaller than the charging capability of the sub-pixel corresponding to the second scan driving signal.
The display device according to claim 10, wherein the executable instruction further comprises:

The switching timing of the first scan driving signal to the charging signal of the preset data driving signal is set to be shorter than the switching timing of the second scan driving signal to the charging signal of the preset data driving signal.
The display device according to claim 10, wherein the executable instruction further comprises:

Obtain historical driving signals of two adjacent sub-pixels in the same column, and set the preset data driving signal as an average value of the historical driving signals.
The display device according to claim 10, wherein the executable instruction further comprises:

Receiving the inversion signal, and inverting the first preset scan driving signal, the second preset scan driving signal, and the preset data driving signal according to the inversion signal to obtain the inverted first preset scan driving signal, The inverted second preset scan drive signal and the inverted preset data drive signal, so that the on-duration of the inverted first preset scan drive signal is longer than the inverted second Preset the on-time of the scan driving signal.
The display device according to claim 10, wherein the executable instruction further comprises:

Driving the high voltage driving signal in the first preset scan driving signal and the high voltage driving signal in the second preset scan driving signal using different driving voltages; and

The low voltage drive signal in the first preset scan drive signal and the low voltage drive signal of the second preset scan drive signal are driven by using different drive voltages.
The display device according to claim 10, wherein the executable instruction further comprises:

The first preset scan driving signal and the second preset scan driving signal form a chamfered counter-pressure.
11. The display device according to claim 10, wherein the pixel unit includes a first pixel unit and a second pixel unit; and the executable instruction further includes:

Adjacent sub-pixels in the same column are driven by a driving mode of interleaved arrangement of high and low voltages.