Liquid crystal panel and driving method thereof and holographic 3D display device

Abstract

The present invention discloses a liquid crystal panel and a driving method thereof and a holographic 3D display device, which relate to the field of display technology. The liquid crystal panel is provided with a display area and a non-display area, and the liquid crystal panel comprises: a plurality of scan lines and a plurality of data lines, the scan lines extend along a first direction and are arranged along a second direction, the data lines extend along a second direction and are arranged along the first direction, and the first direction and the second direction intersect; sub-pixels arranged in an array along the first direction and the second direction, the sub-pixels are located in the display area, and each sub-pixel is electrically connected to a scan line and a data line respectively; the display area comprises a first display area and a second display area arranged along the second direction, and within a frame scanning time, the signal received by each sub-pixel in the first display area through the data line is a first polarity, and the signal received by each sub-pixel in the second display area through the data line is a second polarity, and the first polarity and the second polarity are opposite. This is conducive to avoiding the formation of alternating amplitude and phase in the first direction.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and more specifically, to a liquid crystal panel, a driving method thereof, and a holographic 3D display device. Background Art

[0002] The liquid crystal display panel is one of the most common flat panel displays currently. It has an array substrate for driving pixel units to emit light. Scan lines for providing scan signals and data lines for providing data signals are formed on the array substrate. Pixel units are defined between the scan lines and the data lines. Thin film transistors and pixel electrodes are provided in the pixel units. The gate of the thin film transistor is connected to the scan line, the source is connected to the data line, and the drain is connected to the pixel electrode.

[0003] When the liquid crystal display panel is working, the scan lines are controlled by the gate driver and the data lines are controlled by the source driver. Under the control of the gate drive signal generated by the gate driver, each row of scan lines is turned on in turn, and the corresponding data voltage is sent by the source driver through the data line to the corresponding pixel electrode to charge the pixel electrode, thereby forming the grayscale voltage required to display each grayscale in the pixel electrode, and then displaying each frame of the image.

[0004] At present, how to further improve the display effect of liquid crystal display panels has become one of the technical problems that need to be solved urgently. Summary of the invention

[0005] In view of this, the present invention provides a liquid crystal panel and a driving method thereof, and a holographic 3D display device, which are beneficial to improving the display effect.

[0006] In a first aspect, the present application provides a liquid crystal panel, which is provided with a display area and a non-display area, and the liquid crystal panel includes:

[0007] a plurality of scan lines and a plurality of data lines, wherein the scan lines extend along a first direction and are arranged along a second direction, the data lines extend along the second direction and are arranged along the first direction, and the first direction and the second direction intersect;

[0008] Sub-pixels are arranged in an array along the first direction and the second direction, the sub-pixels are located in the display area, and each sub-pixel is electrically connected to one of the scan lines and one of the data lines respectively;

[0009] The display area includes a first display area and a second display area arranged along the second direction. Within one frame scanning time, the signal received by each of the sub-pixels in the first display area through the data line is a first polarity, and the signal received by each of the sub-pixels in the second display area through the data line is a second polarity, and the first polarity is opposite to the second polarity.

[0010] In a second aspect, the present application provides a driving method for a liquid crystal panel, which is applied to the liquid crystal panel provided in the present application, and the driving method includes:

[0011] In one frame scanning time, a signal of a first polarity is sent to the sub-pixels in the first display area through the data line, and a signal of a second polarity is sent to the sub-pixels in the second display area through the data line, wherein the first polarity is opposite to the second polarity.

[0012] In a third aspect, the present application provides a holographic 3D display device, comprising:

[0013] A light source device, the light source device is used to emit coherent RGB three-color light in time sequence;

[0014] A beam expansion and collimation component, used for expanding and collimating the light emitted by the light source device;

[0015] A spatial light modulator, used for sequentially performing phase modulation and amplitude modulation on the light emitted by the beam expansion and collimation component;

[0016] A field lens and a grating, wherein the field lens is at least used to improve the ability of edge light of the spatial light modulator to be incident on the grating; the grating is used to form a left-eye image and a right-eye image based on the incident light;

[0017] The spatial light modulator includes a first liquid crystal panel for phase modulation and a second liquid crystal panel for amplitude modulation, and at least one of the first liquid crystal panel and the second liquid crystal panel is the liquid crystal panel provided in the present application.

[0018] Compared with the prior art, the liquid crystal panel and the driving method thereof and the holographic 3D display device provided by the present invention achieve at least the following beneficial effects:

[0019] In the liquid crystal panel and the driving method thereof provided in the present application, the liquid crystal panel includes sub-pixels arranged in an array along a first direction and a second direction, and each sub-pixel receives a scan signal through a scan line and receives a data signal through a data line. The display area includes a first display area and a second display area arranged along the second direction. Within a frame scan time, a signal of a first polarity is sent to each sub-pixel in the first display area through a data line, and a signal of a second polarity is sent to each sub-pixel in the second display area through a data line, and the first polarity is opposite to the second polarity. That is to say, within a frame scan time, the polarity of the signal received by each sub-pixel in the first display area is the same, and is opposite to the polarity of the signal received by each sub-pixel in the second display area, thereby avoiding the situation where the polarity of the signals of any two adjacent columns of sub-pixels in the liquid crystal panel is opposite, and avoiding the liquid crystal panel from forming an alternating amplitude and phase in the row direction, which is conducive to avoiding the phenomenon of abnormal diffraction orders, and thus is conducive to improving the display effect of the liquid crystal panel. When the above-mentioned liquid crystal panel is applied to a holographic 3D display device, it is conducive to improving the display effect of the display device.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the technical effects described above at the same time.

[0021] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0023] Figure 1 Shown is a schematic diagram of the arrangement and polarity of sub-pixels in the related art;

[0024] Figure 2 The figure shows the schematic diagram of the amplitude / phase variation within a pixel in the direction of the pixel row under an ideal state;

[0025] Figure 3 The figure shows a schematic diagram of the amplitude / phase variation within a pixel in the pixel row direction under a non-ideal state;

[0026] Figure 4 FIG. 1 is a top view of a liquid crystal panel provided by an embodiment of the present invention;

[0027] Figure 5 Shown Figure 4 A BB cross-sectional view of a liquid crystal panel;

[0028] Figure 6 FIG. 1 is a schematic diagram of pixel polarity of a liquid crystal panel provided by an embodiment of the present invention;

[0029] Figure 7 The figure shows a schematic diagram of pixel arrangement of the first display area and the second display area in the liquid crystal panel provided by the embodiment of the present invention;

[0030] Figure 8 It is a schematic diagram showing the polarity of the sub-pixels in the first display area and the second display area corresponding to the next frame scanning time;

[0031] Fig. 9 A schematic diagram showing a liquid crystal panel including two sub-areas;

[0032] Fig.10 The figure shows a schematic diagram of pixel arrangement of the first display area and the second display area in the liquid crystal panel provided by the embodiment of the present invention;

[0033] Fig.11 The figure shows a corresponding relationship diagram between the gate driving circuit and the sub-pixel row in the liquid crystal panel provided by the embodiment of the present invention;

[0034] Fig.12 Shown is a polarity diagram of a sub-pixel corresponding signal when scanning a liquid crystal panel;

[0035] Fig.13 Another schematic diagram of polarity of signals corresponding to sub-pixels when scanning a liquid crystal panel is shown;

[0036] Fig.14 Another schematic diagram of polarity of signals corresponding to sub-pixels when scanning a liquid crystal panel is shown;

[0037] Fig.15 Another schematic diagram of polarity of signals corresponding to sub-pixels when scanning a liquid crystal panel is shown;

[0038] Fig.16 FIG. 1 is another schematic diagram of pixel arrangement of the first display area and the second display area in the liquid crystal panel provided by an embodiment of the present invention;

[0039] Fig.17 Shown Fig.16 A schematic diagram of connection between the scan line and the gate drive circuit;

[0040] Fig.18 Shown with Fig.17 A schematic diagram of polarity corresponding to the sub-pixels in ;

[0041] Fig.19 Shown with Fig.17 Another polarity diagram corresponding to the sub-pixels in FIG.

[0042] Fig. 20 Shown with Fig.17Another polarity diagram corresponding to the sub-pixels in FIG.

[0043] Fig.21 Shown with Fig.17 Another polarity diagram corresponding to the sub-pixels in FIG.

[0044] Fig. 22 Another top view of a liquid crystal panel provided by an embodiment of the present invention is shown;

[0045] Fig.23 Shown is a structural schematic diagram of a holographic 3D display device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0046] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0047] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0048] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0049] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0050] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0051] Figure 1The figure shows the arrangement and polarity diagram of sub-pixels in the related art. Sub-pixels P0 form multiple pixel columns L0 and multiple pixel rows H0. Multiple pixel columns L0 are arranged along the row direction, and multiple pixel rows H0 are arranged along the column direction. Each sub-pixel P0 in the same pixel row H0 is connected to the same scan line S0, and each sub-pixel P0 in the same pixel column L0 is connected to the same data line D0. In a frame scanning time, a data signal is sent to each sub-pixel P0 through the data line D0, so that the polarity of the data signal received by the sub-pixel P0 in the same pixel column L0 is the same, and the polarity of the data signal received by the sub-pixel P0 in any two adjacent pixel columns L0 is opposite. Assuming that the polarity of the signal corresponding to different pixel columns in the scanning time corresponding to the current frame is "﹢﹣﹢﹣﹢﹣", the polarity of the signal corresponding to different pixel columns in the scanning time corresponding to the next frame will become "﹣﹢﹣﹢﹣﹢", that is, in the related art, the data signal is provided to the sub-pixel column through the column inversion mode. In accordance with this driving mode, the polarity of the data voltage provided by the existing general driving chip (IC) for the data line also has the characteristic that the polarities of the voltages output by adjacent output terminals are opposite.

[0052] When column inversion mode driving is adopted, along the pixel row direction, the data voltage written to each pixel electrode is alternately set with positive voltage and negative voltage, and a constant voltage is provided to the common electrode, such as Figure 2 As shown, Figure 2 The figure shows a schematic diagram of the amplitude / phase variation within a pixel in the direction of the pixel row under an ideal state, wherein the long horizontal line indicates the voltage on the common electrode and the arrow indicates the passage of light.

[0053] The inventors have found that since the voltage of the common electrode in the display panel cannot be accurately controlled to be a preset constant voltage (such as 0V), for example, there is a deviation between the voltage of the common electrode and the preset constant voltage. When the polarities of the data signals corresponding to adjacent pixel columns are different, the absolute values ​​of the voltage differences between the pixel electrodes corresponding to each pixel and the common electrode are different, and an alternating amplitude and phase will be formed in the row direction. See Figure 3 For example, if the common electrode is set to -0.1V, the voltages corresponding to the pixels in the same pixel row will become +5.1V, -4.9V, +5.1V, -4.9V, +5.1V, -4.9V..., instead of +5V, -5V, +5V, -5V, +5V, -5V..., where Figure 3 The figure shows the variation of the amplitude / phase in the pixel row direction under non-ideal conditions. It should be noted that the above voltage values ​​are only examples, and other voltage values ​​may appear in actual display.

[0054] When the light passing through the display panel forms an alternating amplitude and phase in the row direction, it leads to the appearance of abnormal diffraction orders. When abnormal diffraction orders appear on the panel, the area that is supposed to be black will be affected by stray light, making the black state not black, reducing the contrast and thus affecting the display effect.

[0055] In view of this, the present invention provides a liquid crystal panel and a driving method thereof and a holographic 3D display device, which are beneficial to avoiding the formation of alternating amplitude and phase in a first direction, avoiding abnormal diffraction orders, and improving the display effect.

[0056] The following is a detailed description with reference to the accompanying drawings and specific embodiments.

[0057] Figure 4 FIG. 1 is a top view of a liquid crystal panel provided by an embodiment of the present invention. Figure 5 Shown Figure 4 A BB cross-sectional view of a liquid crystal panel. Figure 6 FIG. 1 is a schematic diagram of pixel polarity of a liquid crystal panel provided by an embodiment of the present invention. Figure 7 FIG. 1 is a schematic diagram showing a pixel arrangement of the first display area and the second display area in the liquid crystal panel provided by the embodiment of the present invention. Please refer to FIG. Figure 7 The present invention provides a liquid crystal panel 100, which is provided with a display area AA and a non-display area NA. The liquid crystal panel 100 includes:

[0058] a plurality of scan lines S and a plurality of data lines D, wherein the scan lines S extend along a first direction and are arranged along a second direction, and the data lines D extend along the second direction and are arranged along the first direction, and the first direction and the second direction intersect;

[0059] Sub-pixels P are arranged in an array along the first direction and the second direction, the sub-pixels P are located in the display area AA, and each sub-pixel is electrically connected to one of the scan lines S and one of the data lines D;

[0060] The display area AA includes a first display area A1 and a second display area A2 arranged along the second direction. Within one frame scanning time, the signal received by each of the sub-pixels in the first display area A1 through the data line D is a first polarity, and the signal received by each of the sub-pixels in the second display area A2 through the data line D is a second polarity, and the first polarity is opposite to the second polarity.

[0061] Optionally, combine Figure 4 and Figure 5The liquid crystal panel provided in the embodiment of the present invention includes an array substrate 101, a color filter substrate 102 and liquid crystal located between the array substrate 101 and the color filter substrate 102. The array substrate 101 is provided with a common electrode E1 and a pixel electrode E2 ( Figure 4 The pixel electrodes E2 shown are for illustration only and do not represent the actual number and shape. By applying voltage to the common electrode E1 and the pixel electrode E2, the common electrode E1 and the pixel electrode E2 can be used to form an electric field that drives the liquid crystal 103 to deflect.

[0062] Figure 5 FIG. 1 shows a relative position relationship between the common electrode E1 and the pixel electrode E2 on the array substrate 101. Figure 5 As shown, the common electrode E1 and the pixel electrode E2 are both located on the array substrate 101. In other embodiments, the common electrode E1 can be disposed on the color filter substrate 102. It is understandable that the array substrate 101 can also include other film layer structures, such as a transistor layer for disposing transistors, etc., which are not shown in the present invention.

[0063] It should be noted that Figure 4 The liquid crystal panel 100 of the present invention is illustrated by taking a liquid crystal panel 100 with a rectangular structure as an example, and the structure of the liquid crystal panel 100 is not limited. In some other embodiments of the present invention, the structure of the liquid crystal panel 100 may also be a rounded rectangle, a circle, an ellipse or other special-shaped structures with curved edges. Figure 6 The arrangement of the sub-pixels in the first display area A1 and the second display area A2 is merely schematically illustrated, and does not represent the actual number, size, and shape of the sub-pixels.

[0064] Please refer to Figure 7 The display area AA in the present invention includes a first display area A1 and a second display area A2 arranged along a second direction, and the first display area A1 and the second display area A2 respectively include a plurality of sub-pixels P. Each sub-pixel P is electrically connected to a scan line S and a data line D, and each sub-pixel P receives a scan signal through the scan line S and a data signal through the data line D. Within a frame scan time, the signal received by each of the sub-pixels P in the first display area A1 through the data line D is a first polarity, and the signal received by each of the sub-pixels P in the second display area A2 through the data line D is a second polarity, and the first polarity is opposite to the second polarity.

[0065] Assumptions Figure 7 It is a schematic diagram of the polarity corresponding to the sub-pixels in the first display area A1 and the second display area A2 within the scanning time corresponding to the current frame. At this time, the polarity of the signal received by each sub-pixel in the first display area A1 is positive, and the polarity of the signal received by each sub-pixel in the second display area A2 is negative. Figure 8 The figure shows the polarity diagram corresponding to the sub-pixels in the first display area A1 and the second display area A2 in the next frame scanning time. At this time, the polarity of the signal received by each sub-pixel in the first display area A1 is negative, and the polarity of the signal received by each sub-pixel in the second display area A2 is positive. It can be seen that in any frame scanning time, the polarity of the signal received by each sub-pixel P in the first display area A1 is the same, and is opposite to the polarity of the signal received by each sub-pixel P in the second display area A2, thereby avoiding the situation where the polarity of the signals of any two adjacent columns of sub-pixels in the liquid crystal panel 100 is opposite, and further avoiding the liquid crystal panel 100 from forming an alternating amplitude and phase in the row direction, so as to avoid the phenomenon of abnormal diffraction order, improve the contrast of the liquid crystal panel 100, and further improve the display effect of the liquid crystal panel 100.

[0066] Understandably, Figure 6 Only the case where the liquid crystal panel 100 includes a first display area A1 and a second display area A2 is shown. In some optional embodiments of the present invention, the number of the first display area A1 and the second display area A2 included in the liquid crystal display panel can also be plural. Fig. 9 , Fig. 9 1 shows a schematic diagram of a liquid crystal panel 100 including two sub-areas, wherein the display area AA includes at least two sub-areas, each of which includes a first display area A1 and a second display area A2. This situation is particularly suitable for a liquid crystal panel 100 of a larger size. When the liquid crystal panel 100 includes two or more sub-areas, Fig. 9 In the sub-areas shown, the first display area A1 and the second display area A2 in each sub-area can adopt the setting method of the present application, that is, within one frame scanning time, the polarity of the signal of the sub-pixel of the first display area A1 in each sub-area is opposite to the polarity of the signal of the sub-pixel of the second display area A2, so as to avoid the situation where the polarity of the signals of any two adjacent columns of sub-pixels in the larger-sized liquid crystal panel 100 is opposite, thereby avoiding the liquid crystal panel 100 from forming alternating amplitude and phase in the row direction, which is beneficial to avoid the phenomenon of abnormal diffraction orders, improve the contrast of the liquid crystal panel 100, and thus help to improve the display effect of the liquid crystal panel 100.

[0067] In an optional embodiment of the present invention, Fig.10 FIG. 1 is a schematic diagram showing a pixel arrangement of the first display area A1 and the second display area A2 in the liquid crystal panel 100 provided in an embodiment of the present invention. Figure 7 and Fig.10, the sub-pixels form a plurality of sub-pixel rows H, each of the sub-pixel rows H is arranged along the second direction; the sub-pixels corresponding to the same sub-pixel row H have the same color, and the sub-pixels corresponding to any two adjacent sub-pixel rows H have different colors, and the number of the sub-pixel colors is n, where n≥3;

[0068] The one-frame scanning time includes n scanning sub-frames, and in the same scanning sub-frame, only sub-pixels of the same color are scanned.

[0069] Specifically, Fig.10 The arrangement scheme when the sub-pixels in the liquid crystal panel 100 include three colors is shown. Optionally, the sub-pixels of the three colors are red sub-pixels, green sub-pixels and blue sub-pixels, which form a red sub-pixel row RH, a green sub-pixel row GH and a blue sub-pixel row BH. That is, the sub-pixels corresponding to the same sub-pixel row H have the same color, and along the second direction, the sub-pixels corresponding to any two adjacent sub-pixel rows H have different colors. In some other embodiments of the present invention, the liquid crystal panel 100 may also include sub-pixels of more than three colors, which is not limited by the present invention. Fig.10 Only a scheme in which the red sub-pixel row RH, the green sub-pixel row GH and the blue sub-pixel row BH are arranged in sequence in the first display area A1 and the second display area A2 is shown, and the present invention is not limited thereto.

[0070] Optionally, the present invention scans the sub-pixels in a color-by-color scanning manner. When the liquid crystal panel 100 includes sub-pixels of three colors, one frame scanning time will correspond to three scanning sub-frames. Each scanning sub-frame only scans one color sub-pixel within one frame scanning time, that is, after completing the scanning of the sub-pixels of the same color, the scanning of the sub-pixels of the next color is performed. This method is particularly suitable for the case where the backlight source corresponding to the liquid crystal panel 100 is a field sequential backlight source. The field sequential backlight source may include, for example, light sources of three colors, red, green, and blue. During the display process of the liquid crystal panel 100, the light sources of the three colors sequentially provide light to the liquid crystal panel 100. In this case, there is no need to set color resistance at the position of the sub-pixels in the liquid crystal panel 100, which is conducive to simplifying the structure of the liquid crystal panel 100.

[0071] It is understandable that the liquid crystal panel provided by the present invention can scan sub-pixels by line scanning in addition to the color-by-color scanning mentioned in the above embodiment. In this case, the backlight source can provide white light to the liquid crystal panel, and the sub-pixels in the liquid crystal panel are provided with color resistances of different colors. When scanning the first display area A1 and the second display area A2, it can be implemented by line scanning. When scanning line by line, it can be scanned from top to bottom or from bottom to top. The present invention does not specifically limit this.

[0072] In an optional embodiment of the present invention, please continue to refer to Figure 7 , the sub-pixels form a plurality of sub-pixel columns L, and each of the sub-pixel columns L is arranged along the first direction;

[0073] In the same sub-pixel column L, the sub-pixels located in the first display area A1 are electrically connected to the same data line D, and the sub-pixels located in the second display area A2 are electrically connected to another data line D, and the polarities of the signals of the two data lines D connected to the sub-pixels in the same sub-pixel column L are opposite within the one frame scanning time.

[0074] For more details, please refer to Figure 7 In the liquid crystal panel provided by the embodiment of the present invention, the sub-pixels P form a plurality of sub-pixel columns L in the entire display area AA, a portion of the same sub-pixel column L is located in the first display area A1, and another portion is located in the second display area A2. In particular, in the same sub-pixel column L, the sub-pixels located in the first display area A1 are electrically connected to the same data line D, and the sub-pixels located in the second display area A2 are electrically connected to another data line D. That is, the sub-pixels located in the first display area A1 and the second display area A2 in the same sub-pixel column L are connected to different data lines D, respectively. Within the same frame scanning time, the sub-pixels located in the first display area A1 and the second display area A2 in the same sub-pixel column L can receive data signals with opposite polarities through different data lines D. The present invention sets the polarities of data signals transmitted by any two adjacent data lines D along the first direction to be opposite within the same frame scanning time, so that within the same frame scanning time, the polarities of signals received by sub-pixels in the first display area A1 are the same and opposite to the polarities of signals received by sub-pixels in the second display area A2, thereby avoiding the situation in which the polarities of signals of any two adjacent columns of sub-pixels on the liquid crystal panel are opposite, and further avoiding the formation of alternating amplitude and phase in the row direction of the liquid crystal panel, which is beneficial to avoid the phenomenon of abnormal diffraction orders and improve the display effect of the liquid crystal panel.

[0075] In an optional embodiment of the present invention, please refer to Figure 8 , in the first display area A1, the plurality of sub-pixel columns L are divided into a plurality of first sub-pixel column groups L1, each of the first sub-pixel column groups L1 includes two adjacent sub-pixel columns L, and the sub-pixels in the same first sub-pixel column group L1 are electrically connected to the same data line D;

[0076] In the second display area A2, the plurality of sub-pixel columns L are divided into a plurality of second sub-pixel column groups L2, each of the second sub-pixel column groups L2 includes two adjacent sub-pixel columns L, and the sub-pixels in the same second sub-pixel column group L2 are electrically connected to the same data line D;

[0077] Along the first direction, the first sub-pixel column groups L1 and the second sub-pixel column groups L2 are arranged alternately.

[0078] It should be noted that the first sub-pixel column group L1 and the second sub-pixel column group L2 mentioned in the embodiment of the present invention are arranged alternately, which means that along the second direction, the positive projection of the first sub-pixel column L onto the second sub-pixel column L does not overlap, that is, at least one sub-pixel column L in the first sub-pixel column group L1 and at least one sub-pixel column L in the second sub-pixel column group L2 are not in the same pixel column.

[0079] In order to achieve that within the same frame scanning time, the polarity of the signal received by the sub-pixel in the first display area A1 is opposite to the polarity of the signal received by the sub-pixel in the second display area A2, assuming that the first display area A1 and the second display area A2 have m columns of sub-pixels respectively, although this can be achieved by setting m data lines D for the sub-pixels in the first display area A1 and m data lines D for the sub-pixels in the second display area A2, and the data lines D in the first display area A1 and the second display area A2 are not reused, but the number of data lines D in the liquid crystal panel 100 is greatly increased, and the arrangement of the data lines D is changed, which is not conducive to simplifying the production of the liquid crystal panel 100.

[0080] To this end, the present invention introduces a first sub-pixel column group L1 and a second sub-pixel column group L2 in the first display area A1 and the second display area A2, respectively, wherein two columns of sub-pixel columns L in the first sub-pixel column group L1 are connected to the same data line D, and two columns of sub-pixel columns L in the second sub-pixel column group L2 are connected to another data line D, and one data line D can be used to send data signals to sub-pixels in the two columns of sub-pixel columns L, thereby simplifying the number and arrangement of data lines D in the liquid crystal panel and simplifying the manufacture of the liquid crystal panel. In addition, the present invention can set the data line D connected to the first sub-pixel column group L1 and the data line D connected to the second sub-pixel column group L2 to have opposite polarities of signals transmitted within the same frame scanning time, so that the polarities of signals received by sub-pixels in the first display area A1 and the second display area A2 are opposite, thereby avoiding the phenomenon of abnormal diffraction orders in the liquid crystal panel.

[0081] It should be noted that the first display area A1 or the second display area A2 may include a separate sub-pixel column L in addition to the first sub-pixel column group L1 or the second sub-pixel column group L2. Figure 8In the second display area A2, the second sub-pixel column L and the third sub-pixel constitute a second sub-pixel column group L2, the fourth sub-pixel column L and the fifth sub-pixel column L constitute a second sub-pixel column group L2, the first sub-pixel column L and the last sub-pixel column L are separate sub-pixel columns L, and separate data lines D provide data signals to the sub-pixels in the first sub-pixel column L and the last sub-pixel column L, respectively. Within the same frame scanning time, the polarity of the signal transmitted by the data line D connected to the first sub-pixel column L and the last sub-pixel column L is the same as the polarity of the signal transmitted by the data line D connected to the second sub-pixel column group L2 in the second display area A2, so that the polarity of the signal received by the sub-pixels in the second display area A2 within the same frame scanning time is the same.

[0082] In an optional embodiment of the present invention, please refer to Figure 7 and Figure 8 , the sub-pixels form a plurality of sub-pixel rows H, and each of the sub-pixel rows H is arranged along the second direction;

[0083] Each sub-pixel row H corresponds to two scan lines S, and the two scan lines S are respectively a first scan line S1 and a second scan line S2; in the first display area A1, in the same sub-pixel row H, the first scan line S1 is electrically connected to the odd-numbered sub-pixels P, and the second scan line S2 is electrically connected to the even-numbered sub-pixels P; in the second display area A2, in the same sub-pixel row H, the first scan line S1 is electrically connected to the even-numbered sub-pixels P, and the second scan line S2 is electrically connected to the odd-numbered sub-pixels P.

[0084] Specifically, each sub-pixel in the liquid crystal panel is electrically connected to a scan line S and a data line D. When scanning a sub-pixel, a scan signal is first transmitted to the corresponding sub-pixel through the scan line S to turn on the switching transistor corresponding to the sub-pixel. In this way, the data signal on the data line D can be smoothly written into the sub-pixel.

[0085] Please combine Figure 7 and Figure 8 The present invention sets two scan lines S for sub-pixels in each sub-pixel row, which are a first scan line S1 and a second scan line S2. Some sub-pixels in each sub-pixel row are electrically connected to the first scan line S1, and another part of the sub-pixels are electrically connected to the second scan line S2. Specifically, in the first display area A1, the first scan line S1 corresponding to the same sub-pixel row is electrically connected to the odd-numbered sub-pixels in the sub-pixel row, and the second scan line S2 is electrically connected to the even-numbered sub-pixels in the sub-pixel row, so that when the first scan line S1 sends a scan signal, the odd-numbered sub-pixels in the corresponding sub-pixel row are turned on to receive data signals, and when the second scan line S2 sends a scan signal, the even-numbered sub-pixels in the corresponding sub-pixel row are turned on to receive data signals.

[0086] In the second display area A2, the first scan line S1 corresponding to the same sub-pixel row is electrically connected to the even-numbered sub-pixels in the sub-pixel row H, and the second scan line S2 is electrically connected to the odd-numbered sub-pixels in the sub-pixel row H, so that when the first scan line S1 sends a scan signal, the even-numbered sub-pixels in the corresponding sub-pixel row H are turned on to receive data signals, and when the second scan line S2 sends a scan signal, the odd-numbered sub-pixels in the corresponding sub-pixel row are turned on to receive data signals.

[0087] In this way, by controlling the first scan line S1 and the second scan line S2 corresponding to the same sub-pixel row to be turned on in time-sharing mode, the data signals of the same polarity can be provided to different sub-pixels in the same sub-pixel row in time-sharing mode. In addition, considering that the first sub-pixel column group L1 in the first display area A1 corresponds to one data line D, and the second sub-pixel column group L2 in the second display area A2 corresponds to another data line D, in the same sub-pixel row, when the first scan line S1 is turned on, the odd-numbered sub-pixels in the first display area A1 will be turned on, and the data line D will only transmit data signals to the first odd-numbered sub-pixels; in the same sub-pixel row H, when the first scan line S1 is turned on, the even-numbered sub-pixels in the second display area A2 will be turned on, and the data line D will only transmit data signals to the even-numbered sub-pixels.

[0088] Understandably, Figure 7 and Figure 8 Only the scheme that the first scan line S1 is electrically connected to the odd-numbered sub-pixel, the second scan line S2 is electrically connected to the even-numbered sub-pixel, and the first scan line S1 is electrically connected to the even-numbered sub-pixel, and the second scan line S2 is electrically connected to the odd-numbered sub-pixel in the first display area A1 is shown. In some other embodiments of the present invention, it can also be embodied that the first scan line S1 in the first display area A1 is electrically connected to the even-numbered sub-pixel, and the second scan line S2 is electrically connected to the odd-numbered sub-pixel; the first scan line S1 in the second display area A2 is electrically connected to the odd-numbered sub-pixel, and the second scan line S2 is electrically connected to the even-numbered sub-pixel, and the present invention does not specifically limit this.

[0089] In an optional embodiment of the present invention, Fig.11 FIG. 1 is a diagram showing a corresponding relationship between a gate driving circuit and a sub-pixel row H in a liquid crystal panel 100 provided in an embodiment of the present invention. Fig.11 The liquid crystal panel 100 also includes a first gate driving circuit and a second gate driving circuit; wherein the first gate driving circuit includes shift registers V11, V12, V13 and V14, and the second gate driving circuit includes shift registers V21, V22, V23 and V24.

[0090] In the first display area A1, the first scan line S1 and the second scan line S2 corresponding to a row of sub-pixels are electrically connected to the first gate driving circuit in sequence;

[0091] In the second display area A2, the first scan line S1 and the second scan line S2 corresponding to a row of sub-pixels are electrically connected to the second gate driving circuit in sequence;

[0092] The first gate driving circuit and the second gate driving circuit simultaneously send scanning signals to corresponding scanning lines.

[0093] Specifically, the first gate driving circuit and the second gate driving circuit mentioned in the embodiment of the present invention may respectively include a plurality of shift registers, and the first scan line S1 and the second scan line S2 are respectively electrically connected to one or two shift registers ( Fig.11 Only the case where one scan line S corresponds to one shift register is shown), the first scan line S1 and the second scan line S2 corresponding to a row of sub-pixels in the first display area A1 are electrically connected to the first gate drive circuit in sequence, which means that the first scan line S1 and the second scan line S2 corresponding to a row of sub-pixels in the first display area A1 are respectively connected to the two adjacent shift registers in the first gate drive circuit; the first scan line S1 and the second scan line S2 corresponding to a row of sub-pixels in the second display area A2 are electrically connected to the second gate drive circuit in sequence, which means that the first scan line S1 and the second scan line S2 corresponding to a row of sub-pixels in the second display area A2 are respectively connected to the two adjacent shift registers in the second gate drive circuit.

[0094] The present invention defines that the first gate driving circuit and the second gate driving circuit send scanning signals to the corresponding scanning lines S at the same time, which means that the shift register located at the first stage in the first gate driving circuit and the shift register located at the first stage in the second gate driving circuit are turned on at the same time, and send scanning signals to the corresponding sub-pixel rows at the same time, so that part of the sub-pixels in the first display area A1 and part of the sub-pixels in the second display area A2 receive data signals with opposite polarities at the same time, which is equivalent to scanning part of the sub-pixels in the first display area A1 and the second display area A2 at the same time, which is beneficial to saving scanning time and improving the refresh frequency of the liquid crystal panel.

[0095] The scanning process of the liquid crystal panel 100 in the present invention is described below by taking the arrangement of the sub-pixel rows H in the first display area A1 and the second display area A2 as an example in which the red sub-pixel rows RH, the green sub-pixel rows GH and the blue sub-pixel rows BH are arranged in sequence.

[0096] Please combine Fig.10 and Fig.11The first display area A1 and the second display area A2 respectively include two red sub-pixel rows RH, two green sub-pixel rows GH and two blue sub-pixel rows BH. Along the direction from the first display area A1 to the second display area A2, the first scan line S1 and the second scan line S2 corresponding to the first red sub-pixel row RH in the first display area A1 are scan lines S11 and S12, and the corresponding shift registers are V11 and V12; the first scan line S1 and the second scan line S2 corresponding to the second red sub-pixel row RH are scan lines S13 and S14, and the corresponding shift registers are V13 and V14. Similarly, along the direction from the first display area A1 to the second display area A2, the first scan line S1 and the second scan line S2 corresponding to the first red sub-pixel row RH in the second display area A2 are scan lines S21 and S22, respectively, and the corresponding shift registers are V21 and V22; the first scan line S1 and the second scan line S2 corresponding to the second red sub-pixel row RH are S23 and S24, respectively, and the corresponding shift registers are V23 and V24.

[0097] Among them, in the first gate driving circuit, shift registers V11, V12, V13 and V14 are cascaded in sequence; in the second gate driving circuit, shift registers V21, V22, V23 and V24 are cascaded in sequence. The first gate driving circuit and the second gate driving circuit simultaneously send scanning signals to the corresponding scanning lines S, specifically, the shift registers V11 and V21 are simultaneously started, and the odd-numbered sub-pixels of the first red sub-pixel row RH in the first display area A1 and the even-numbered sub-pixels of the first red sub-pixel row RH in the second display area A2 are scanned at the same time, so that the data line D simultaneously sends a data signal of a first polarity to the odd-numbered sub-pixels of the first red sub-pixel row RH in the first display area A1, and sends a data signal of a second polarity to the even-numbered sub-pixels of the first red sub-pixel row RH in the second display area A2. For example, please refer to Fig.12 , Fig.12 The figure shows a polarity diagram of the sub-pixel corresponding signal when the liquid crystal panel 100 is scanned. At this time, the polarity of the signal corresponding to the odd-numbered sub-pixel in the first red sub-pixel row RH in the first display area A1 is positive, and the polarity of the signal corresponding to the even-numbered sub-pixel in the first red sub-pixel row RH in the second display area A2 is negative.

[0098] Next, please refer to Fig.11 and Fig.13 , Fig.13Another polarity diagram of the signal corresponding to the sub-pixel when scanning the liquid crystal panel 100 is shown. The shift register V11 transmits the shift signal to the shift register V12. At the same time, the shift register V21 transmits the shift signal to the shift register V22. The even-numbered sub-pixels in the first red sub-pixel row RH in the first display area A1 are scanned by the second scan line S2. At the same time, the odd-numbered sub-pixels in the first red sub-pixel row RH in the second display area A2 are scanned by the second scan line S2, so that the polarity of the signal received by the even-numbered sub-pixels in the first red sub-pixel row RH in the first display area A1 is positive, and the polarity of the signal received by the odd-numbered sub-pixels in the first red sub-pixel row RH in the second display area A2 is negative. At this point, the scanning of the first red sub-pixel row RH in the first display area A1 and the first red sub-pixel row RH in the second display area A2 is completed.

[0099] Next, please refer to Fig.11 and Fig.14 , Fig.14 The figure shows another polarity diagram of the signal corresponding to the sub-pixel when the liquid crystal panel 100 is scanned. The shift register V12 transmits the shift signal to the shift register V13. At the same time, the shift register V22 transmits the shift signal to the shift register V23. The first scan line S1 is used to scan the odd-numbered sub-pixels in the second red sub-pixel row RH of the first display area A1. This part of the sub-pixels receives the data signal with a positive polarity. At the same time, the first scan line S1 is used to scan the even-numbered sub-pixels in the second red sub-pixel row RH of the second display area A2. This part of the sub-pixels receives the data signal with a negative polarity.

[0100] Next, please refer to Fig.11 and Fig.15 , Fig.15 The figure shows another polarity diagram of the signal corresponding to the sub-pixel when scanning the liquid crystal panel 100. The shift register V13 transmits the shift signal to the shift register V14. At the same time, the shift register V23 transmits the shift signal to the shift register V24. The second scanning line S2 is used to scan the even-numbered sub-pixels in the second red sub-pixel row RH of the first display area A1. These sub-pixels receive data signals with positive polarity. At the same time, the second scanning line S2 is used to scan the odd-numbered sub-pixels in the second red sub-pixel row RH of the second display area A2. These sub-pixels receive data signals with negative polarity. The scanning of each red sub-pixel row RH in the first display area A1 and the second display area A2 is completed. The polarity of the signal corresponding to each red sub-pixel in the first display area A1 is positive, and the polarity of the signal corresponding to each red sub-pixel in the second display area A2 is negative.

[0101] It should be noted that the above embodiments only introduce the connection relationship and driving method between the first gate driving circuit and the red sub-pixel row RH in the first display area A1, and the connection relationship and driving method between the second gate driving circuit and the red sub-pixel row RH in the first display area A1. It is assumed that the shift register electrically connected to the red sub-pixel row RH in the first gate driving circuit constitutes a first sub-circuit. It can be understood that the first gate driving circuit also includes a second sub-circuit and a third sub-circuit, wherein the shift register in the second sub-circuit is electrically connected to the green sub-pixel row GH, and the shift register in the third sub-circuit is electrically connected to the blue sub-pixel row BH. After the first sub-circuit is used to complete the scanning of the red sub-pixel row RH in the first display area A1, the second sub-circuit and the third sub-circuit in the first gate driving circuit are used in turn to scan the green sub-pixel row GH and the blue sub-pixel row BH in the first display area A1. Similarly, the second gate driving circuit includes a first sub-circuit, a second sub-circuit and a third sub-circuit, wherein the shift register in the first sub-circuit is electrically connected to the red sub-pixel row RH in the second display area A2, the shift register in the second sub-circuit is electrically connected to the green sub-pixel row GH in the second display area A2, and the shift register in the third sub-circuit is electrically connected to the blue sub-pixel row BH in the third display area AA. After the first sub-circuit is used to complete the scanning of the red sub-pixel row RH in the second display area A2, the second sub-circuit and the third sub-circuit in the second gate driving circuit are used in turn to scan the green sub-pixel row GH and the blue sub-pixel row BH in the second display area A2.

[0102] It should be noted that, within the current frame scanning time, the polarity of the signal transmitted on each data line D remains unchanged, and within the next frame scanning time, the polarity of the signal transmitted on the data line D is reversed. This transformation method of the signal on the data line D is the same as the frame inversion technology in the related art. That is to say, the above-mentioned embodiment of the present invention does not change the signal change method on the data line D, but only changes the connection relationship between the scanning line and the sub-pixel, thereby achieving a technical solution in which the polarity of the sub-pixels in the first display area A1 and the second display area A2 remains opposite within one frame scanning time, thereby avoiding the liquid crystal panel 100 from forming alternating amplitude and phase in the row direction, thereby helping to avoid the phenomenon of abnormal diffraction orders, and improving the display effect of the liquid crystal panel 100 without increasing the difficulty of manufacturing the liquid crystal panel 100.

[0103] It should be noted that the above embodiment only takes one scan line S connected to one shift register as an example. In some other embodiments of the present invention, one scan line S can also be connected to two shift registers, and the two registers send scan signals to the same scan line S at the same time. The present invention will no longer show them one by one.

[0104] It should also be noted that the above-mentioned embodiment is only described by taking the example that when scanning sub-pixel rows of the same color, the sub-pixel rows in the first display area A1 are scanned from top to bottom, and the sub-pixel rows in the second display area A2 are also scanned from top to bottom. In some other embodiments of the present invention, the scanning direction can be flexibly set according to actual needs. For example, the first display area A1 and the second display area A2 are both scanned from bottom to top, or the first display area A1 is scanned from bottom to top and the second display area A2 is scanned from top to bottom, or the first display area A1 is scanned from top to bottom and the second display area A2 is scanned from bottom to top. The present invention does not make specific limitations on this.

[0105] In an optional embodiment of the present invention, Fig.16 FIG. 1 is another schematic diagram of pixel arrangement of the first display area A1 and the second display area A2 in the liquid crystal panel 100 provided in an embodiment of the present invention, wherein the sub-pixels form a plurality of sub-pixel rows H and a plurality of sub-pixel columns L, each of the sub-pixel rows H is arranged along the second direction, and each of the sub-pixel columns L is arranged along the first direction;

[0106] The same sub-pixel row H corresponds to two scan lines S, and the two scan lines S are respectively a first scan line S1 and a second scan line S2; in the first display area A1, in the same sub-pixel row H, the first scan line S1 is electrically connected to the even-numbered sub-pixels P, and the second scan line S2 is electrically connected to the odd-numbered sub-pixels P; in the second display area A2, in the same sub-pixel row H, the first scan line S1 is electrically connected to the odd-numbered sub-pixels P, and the second scan line S2 is electrically connected to the even-numbered sub-pixels P;

[0107] Each sub-pixel in the same sub-pixel column L is electrically connected to one data line D, and the polarities of the signals of the two data lines D corresponding to any two adjacent sub-pixel columns L are opposite.

[0108] For more details, please refer to Fig.16, this embodiment shows another connection relationship between the sub-pixels P in the first display area A1 and the second display area A2 and the scan lines and data lines D. In this embodiment, the sub-pixels in the same column of the first display area A1 and the second display area A2 correspond to the same data line D, that is, the data signals are provided to the sub-pixels in the same column through the same data line D. Each sub-pixel row H in the first display area A1 and the second display area A2 corresponds to two scan lines, namely the first scan line S1 and the second scan line S2. In the first display area A1, the first scan line S1 corresponding to the same sub-pixel row H is electrically connected to the even-numbered sub-pixels in the sub-pixel row H, and the second scan line S2 is electrically connected to the odd-numbered sub-pixels in the sub-pixel row H; in the second display area A2, the first scan line S1 corresponding to the same sub-pixel row H is electrically connected to the odd-numbered sub-pixels in the sub-pixel row H, and the second scan line S2 is electrically connected to the even-numbered sub-pixels in the sub-pixel row H.

[0109] When different sub-pixel rows H in the first display area A1 and the second display area A2 are scanned respectively by using different first scanning lines S1, the even-numbered sub-pixels in the corresponding sub-pixel row H in the first display area A1 are turned on to receive the data signal of the first polarity sent by the data line D; the odd-numbered sub-pixels in the corresponding sub-pixel row H in the second display area A2 are turned on to receive the data signal of the second polarity sent by the data line D; the data line D that sends data signals to the even-numbered sub-pixels in the first display area A1 is different from the data line D that sends data signals to the odd-numbered sub-pixels in the second display area A2, which is equivalent to a part of the data line D being used to send data signals to the sub-pixels in the first display area A1. Signal, the other part of the data line D is used to send data signals to the sub-pixels in the second display area A2, thereby achieving the purpose of sending data signals of different polarities to the sub-pixels in the first display area A1 and the second display area A2, so that within one frame scanning time, the polarity of the signal of the sub-pixel in the first display area A1 is opposite to the polarity of the signal of the sub-pixel in the second display area A2, so as to avoid the situation where the polarities of the signals of any two adjacent columns of sub-pixels in the liquid crystal panel are opposite, and further avoid the liquid crystal panel from forming alternating amplitude and phase in the row direction. Therefore, it is also beneficial to avoid the phenomenon of abnormal diffraction orders, improve the contrast of the liquid crystal panel, and further help to improve the display effect of the liquid crystal panel.

[0110] In an optional embodiment of the present invention, Fig.17 Shown Fig.16 A connection diagram of the scan line S and the gate drive circuit in FIG. Fig.17, the liquid crystal panel 100 further includes a first gate driving circuit and a second gate driving circuit, the first gate driving circuit includes a first sub-gate driving circuit (corresponding to shift registers V11 and V13) and a second sub-gate driving circuit (corresponding to shift registers V12 and V14), the second gate driving circuit includes a third sub-gate driving circuit (corresponding to shift registers V21 and V23) and a fourth sub-gate driving circuit (corresponding to shift registers V22 and V24);

[0111] In the first display area A1, the first scan lines S1 corresponding to a row of the sub-pixels are electrically connected to the first sub-gate driving circuit, and the second scan lines S2 corresponding to a row of the sub-pixels H are electrically connected to the second sub-gate driving circuit;

[0112] In the second display area A2, a row of the sub-pixel row H corresponding to the first scan line S1 is electrically connected to the third sub-gate driving circuit, and a row of the sub-pixel row H corresponding to the second scan line S2 is electrically connected to the fourth sub-gate driving circuit;

[0113] The first sub-gate driving circuit and the third sub-gate driving circuit send scanning signals to the corresponding scanning lines S simultaneously, and the second sub-gate driving circuit and the fourth sub-gate driving circuit send scanning signals to the corresponding scanning lines S simultaneously.

[0114] For more details, please refer to Fig.17 In the first gate driving circuit, the first sub-gate driving circuit and the second sub-gate driving circuit each include a plurality of shift registers, the shift registers V11 and V13 in the first sub-gate driving circuit are cascaded, and the shift registers V12 and V14 in the second sub-gate driving circuit are cascaded. In the second gate driving circuit, the third sub-gate driving circuit and the fourth sub-gate driving circuit also include a plurality of shift registers, the shift registers V21 and V23 in the third sub-gate driving circuit are cascaded, and the shift registers V22 and V24 in the fourth sub-gate driving circuit are cascaded.

[0115] In the first display area A1, a first scan line S1 corresponding to a row of sub-pixels H is electrically connected to a shift register in the first sub-gate driving circuit, and a second scan line S2 is electrically connected to a shift register in the second gate driving circuit. In the second display area A2, a first scan line S1 corresponding to a row of sub-pixels H is cascaded with a shift register in the third sub-gate driving circuit, and a second scan line S2 is cascaded with a shift register in the fourth sub-gate driving circuit.

[0116] The first sub-gate driving circuit and the third sub-gate driving circuit simultaneously send scan signals to the corresponding scan line S, which means that the shift register at the first stage in the first sub-gate driving circuit and the shift register at the first stage in the third sub-gate driving circuit are turned on at the same time, and the scan signals are sent to the corresponding first scan line S1 at the same time. The second sub-gate driving circuit and the fourth sub-gate driving circuit simultaneously send scan signals to the corresponding scan line S, which means that the shift register at the first stage in the second sub-gate driving circuit and the shift register at the first stage in the fourth sub-gate driving circuit are turned on at the same time, and the scan signals are sent to the corresponding second scan line S2 at the same time.

[0117] The scanning process of the liquid crystal panel 100 in the present invention is described below by taking the arrangement of the sub-pixel rows H in the first display area A1 and the second display area A2 as an example in which the red sub-pixel rows RH, the green sub-pixel rows GH and the blue sub-pixel rows BH are arranged in sequence.

[0118] Please combine Fig.17 The first display area A1 and the second display area A2 respectively include two red sub-pixel rows RH, two green sub-pixel rows GH and two blue sub-pixel rows BH. Along the direction from the first display area A1 to the second display area A2, the first scan line S1 and the second scan line S2 corresponding to the first red sub-pixel row RH in the first display area A1 are scan lines S11 and S12, and the corresponding shift registers are V11 and V12; the first scan line S1 and the second scan line S2 corresponding to the second red sub-pixel row RH are scan lines S13 and S14, and the corresponding shift registers are V13 and V14. Similarly, along the direction from the first display area A1 to the second display area A2, the first scan line S1 and the second scan line S2 corresponding to the first red sub-pixel row RH in the second display area A2 are scan lines S21 and S22, respectively, and the corresponding shift registers are V21 and V22; the first scan line S1 and the second scan line S2 corresponding to the second red sub-pixel row RH are S23 and S24, respectively, and the corresponding shift registers are V23 and V24.

[0119] Among them, the first sub-gate driving circuit includes cascaded shift registers V11 and V13, the second sub-gate driving circuit includes cascaded shift registers V12 and V14, the third sub-gate driving circuit includes cascaded shift registers V21 and V23, and the fourth sub-gate driving circuit includes cascaded shift registers V22 and V24.

[0120] Assuming that when the first display area A1 and the second display area A2 scan sub-pixels of the same color, the scanning method is to scan from top to bottom. Assuming that the red sub-pixel is scanned, when the first sub-gate driving circuit and the second sub-gate driving circuit simultaneously send scanning signals to the corresponding first scanning line S1, specifically, the shift register V11 and the shift register V21 are started at the same time, and different first scanning lines S1 are used to simultaneously scan the even-numbered sub-pixels in the first red sub-pixel row RH in the first display area A1 and the odd-numbered sub-pixels in the first red sub-pixel row RH in the second display area A2, so that the data line D simultaneously sends a data signal of a first polarity to the even-numbered sub-pixels in the first red sub-pixel row RH in the first display area A1, and sends a data signal of a second polarity to the odd-numbered sub-pixels in the first red sub-pixel row RH in the second display area A2. For example, see Fig.18 ,in Fig.18 Shown with Fig.17 A schematic diagram of polarity corresponding to the sub-pixels in the first red sub-pixel row RH in the first display area A1, at this time, the polarity of the signal corresponding to the even-numbered sub-pixels in the first red sub-pixel row RH in the first display area A1 is positive, and the polarity of the signal corresponding to the odd-numbered sub-pixels in the first red sub-pixel row RH in the second display area A2 is negative.

[0121] Next, please refer to Fig.17 and Fig.19 , Fig.19 Shown with Fig.17 Schematic diagram of another polarity corresponding to the sub-pixels in the first display area A1, the shift register V11 transmits the shift signal to the shift register V13, and at the same time, the shift register V21 transmits the shift signal to the shift register V23, and the first scan line S1 is used to scan the even-numbered sub-pixels in the second red sub-pixel row RH in the first display area A1, and at the same time, the second scan line S2 is used to scan the polarity of the even-numbered sub-pixels in the second red sub-pixel row RH in the second display area A2, so that the polarity of the signal received by the even-numbered sub-pixels in the second red sub-pixel row RH in the first display area A1 is positive, and the polarity of the signal received by the odd-numbered sub-pixels in the second red sub-pixel row RH in the second display area A2 is negative.

[0122] Next, please refer to Fig.17 and Fig. 20 , Fig. 20 Shown with Fig.17Another polarity diagram corresponding to the sub-pixels in the second sub-gate driving circuit, the shift register V12 in the second sub-gate driving circuit and the shift register V22 in the fourth sub-gate driving circuit are turned on, and the odd-numbered sub-pixels in the first red sub-pixel row RH in the first display area A1 and the even-numbered sub-pixels in the first red sub-pixel row RH in the second display area A2 are scanned simultaneously using different second scanning lines S2, so that the odd-numbered sub-pixels in the first red sub-pixel row RH in the first display area A1 receive data signals with positive polarity, and the even-numbered sub-pixels in the first red sub-pixel row RH in the second display area A2 receive data signals with negative polarity. So far, the scanning of all sub-pixels in the first red sub-pixel row RH in the first display area A1 and the first red sub-pixel row RH in the second display area A2 is completed.

[0123] Next, please refer to Fig.17 and Fig.21 , Fig.21 Shown with Fig.17 , the shift register V12 in the second sub-gate driving circuit transmits the shift signal to the shift register V14, and the shift register V22 in the fourth sub-gate driving circuit transmits the shift signal to the shift register V24, and uses different second scanning lines S2 to simultaneously scan the odd-numbered sub-pixels in the second red sub-pixel row RH of the first display area A1 and the even-numbered sub-pixels in the second red sub-pixel row RH of the second display area A2, so that the odd-numbered sub-pixels in the second red sub-pixel row RH of the first display area A1 receive data signals with positive polarity, and the even-numbered sub-pixels in the second red sub-pixel row RH of the second display area A2 receive data signals with negative polarity. So far, the scanning of all sub-pixels in the second red sub-pixel row RH in the first display area A1 and the second red sub-pixel row RH in the second display area A2 is completed, that is, the scanning of all red sub-pixels in the first display area A1 and the second display area A2 is completed.

[0124] It should be noted that, when the liquid crystal panel 100 includes a plurality of pixel rows H of different colors, the first gate driving circuit corresponding to the first display area A1 may include a plurality of first sub-gate driving circuits and a second sub-gate driving circuit, for example, the scanning lines S corresponding to the green sub-pixel row GH and the blue sub-pixel row BH are also provided with the first sub-gate driving circuit and the second sub-gate driving circuit, and the connection relationship can refer to the connection relationship between the scanning line S in the red sub-pixel row RH in the first display area A1 and the first sub-gate driving circuit and the second sub-gate driving circuit. Similarly, the second gate driving circuit corresponding to the second display area A2 may include a plurality of third sub-gate driving circuits and a fourth sub-gate driving circuit, for example, the scanning lines S corresponding to the green sub-pixel row GH and the blue sub-pixel row BH are also provided with the third sub-gate driving circuit and the fourth sub-gate driving circuit, and the connection relationship can refer to the connection relationship between the scanning line S in the red sub-pixel row RH in the second display area A2 and the first sub-gate driving circuit and the second sub-gate driving circuit.

[0125] It should be noted that the above embodiment only takes one scan line S connected to one shift register as an example. In some other embodiments of the present invention, one scan line S can also be connected to two shift registers, and the two registers send scan signals to the same scan line S at the same time. The present invention will no longer show them one by one.

[0126] It should also be noted that the above-mentioned embodiment is only described by taking the example that when scanning sub-pixel rows of the same color, the sub-pixel rows in the first display area A1 are scanned from top to bottom, and the sub-pixel rows in the second display area A2 are also scanned from top to bottom. In some other embodiments of the present invention, the scanning direction can be flexibly set according to actual needs. For example, the first display area A1 and the second display area A2 are both scanned from bottom to top, or the first display area A1 is scanned from bottom to top and the second display area A2 is scanned from top to bottom, or the first display area A1 is scanned from top to bottom and the second display area A2 is scanned from bottom to top. The present invention does not make specific limitations on this.

[0127] In an optional embodiment of the present invention, Fig. 22 The figure shows another top view of the liquid crystal panel 100 provided by an embodiment of the present invention, wherein the liquid crystal panel 100 also includes a driving chip 60, wherein the driving chip 60 includes a plurality of data signal output terminals 61, and the data signal output terminals 61 are connected to the data lines D; wherein, at the same moment, the polarities of the data signals output by two adjacent data signal output terminals 61 of the driving chip 60 are opposite.

[0128] It should be noted that, in addition to the data signal output terminal 61 , the driving chip 60 may also include other signal output terminals or input terminals, which are not shown in the figure and are not specifically limited in the present invention.

[0129] Specifically, Fig. 22 The embodiment shows a case where the liquid crystal panel 100 includes a driving chip 60, wherein the driving chip 60 includes a plurality of data signal output terminals 61, and the data signal output terminals 61 are connected to the data line D. The data signal on the data line D in the liquid crystal panel 100 is provided to the data line D by the data signal output terminals 61 of the driving chip 60. In particular, at the same time, the polarities of the data signals output by the two adjacent data signal output terminals 61 of the driving chip 60 are opposite, so that the polarities of the data signals transmitted to the sub-pixels by the two adjacent data lines D are opposite. Through the control of the above embodiment, among the two adjacent data lines D controlled at the same time, one of the data lines D provides a data signal of a first polarity to the sub-pixels in the first display area A1. The other data line D provides a data signal of a second polarity to the sub-pixels in the second display area A2, so that within one frame scanning time, the polarity of the data signal received by the sub-pixels in the first display area A1 is opposite to the polarity of the data signal received by the sub-pixels in the second display area A2.

[0130] In addition, the present application sets that at the same moment, the polarities of the data signals output by the two adjacent data signal output terminals 61 of the driver chip 60 are opposite, and the polarity of the signal output by the same data signal output terminal 61 only needs to be switched alternately between positive and negative, and it is sufficient to ensure that the polarities of the data signals output by the two adjacent data signal output terminals 61 are opposite, which is beneficial to simplify the control logic of the driver chip 60.

[0131] Based on the same inventive concept, the present invention further provides a driving method of a liquid crystal panel 100, which is applied to the liquid crystal panel 100 provided in any of the above embodiments of the present application. Figure 6 and Figure 7 , the driving method comprises:

[0132] In one frame scanning time, a signal of a first polarity is sent to the sub-pixels in the first display area A1 through the data line D, and a signal of a second polarity is sent to the sub-pixels in the second display area A2 through the data line D, wherein the first polarity is opposite to the second polarity.

[0133] Specifically, the present invention adopts the above-mentioned driving method to drive the liquid crystal panel 100, so that within one frame scanning time, the polarity of the data signal received by the sub-pixel in the first display area A1 is the first polarity, and the polarity of the data signal received by the sub-pixel in the second display area A2 is the second polarity, and the first polarity is opposite to the second polarity, thereby avoiding the situation in which the polarities of the signals of any two adjacent columns of sub-pixels in the liquid crystal panel 100 are opposite, and further avoiding the liquid crystal panel 100 from forming alternating amplitude and phase in the row direction. Therefore, it is beneficial to avoid the phenomenon of abnormal diffraction orders, improve the contrast of the liquid crystal panel 100, and further help to improve the display effect of the liquid crystal panel 100.

[0134] In an optional embodiment of the present invention, please combine Fig.10 , the sub-pixel colors include at least three types, and the one-frame scanning time includes at least three scanning sub-frames;

[0135] During the one-frame scanning time: in the same scanning subframe, only sub-pixels of the same color are scanned, and in different scanning subframes, sub-pixels of different colors are scanned respectively.

[0136] Specifically, the present invention divides a frame scanning time into three scanning subframes, and only scans subpixels of one color in the time corresponding to each scanning subframe. The colors of subpixels scanned by different scanning subframes are different. This scanning method is equivalent to a color-by-color scanning method. When the liquid crystal panel contains subpixels of three colors, one frame scanning time will correspond to three scanning subframes. Each scanning subframe only scans subpixels of one color in one frame scanning time, that is, after completing the scanning of the subpixels of the same color, the scanning of the subpixels of the next color is performed. This method is particularly suitable for the case where the backlight source corresponding to the liquid crystal panel 100 is a field sequential backlight source. The field sequential backlight source may include, for example, light sources of three colors of red, green and blue. During the display process of the liquid crystal panel, the light sources of the three colors sequentially provide light to the liquid crystal panel. In this case, there is no need to set color resistance at the position of the subpixels in the liquid crystal panel, which is conducive to simplifying the structure of the liquid crystal panel.

[0137] In an optional embodiment of the present invention, please combine Figure 7 and Fig.10 , the sub-pixels form a plurality of sub-pixel columns L, each of the sub-pixel columns L is arranged along the first direction; in the same sub-pixel column L, the sub-pixels located in the first display area A1 are electrically connected to the same data line D, and the sub-pixels located in the second display area A2 are electrically connected to another data line D; the driving method comprises:

[0138] In the same scanning subframe, each sub-pixel row H of the same color in the first display area A1 is scanned row by row, and a signal of the first polarity is provided to the corresponding sub-pixel through the data line D; at the same time, each sub-pixel row H of the same color in the second display area A2 is scanned row by row, and a signal of the second polarity is provided to the corresponding sub-pixel through the data line D.

[0139] Specifically, the driving method is applied to Figure 7 and Fig.10 The scheme of the liquid crystal panel 100 shown. When scanning the sub-pixels in the liquid crystal panel 100, the scanning method is color-by-color scanning, that is, the scanning of the sub-pixels of one color is completed first and then the sub-pixels of another color are scanned. Specifically, in the same scanning subframe, the sub-pixel rows H of the same color in the first display area A1 are scanned row by row, and at the same time, the sub-pixel rows H of the same color in the second display area A2 are scanned row by row. For the sub-pixel rows H in the first display area A1 and the second display area A2, the scanning of all sub-pixels in one sub-pixel row H is completed before scanning the next sub-pixel row H of the same color. For the specific scanning method, please refer to the above in combination with Figure 11 to Figure 15 The textual explanation carried out.

[0140] In this driving method, within one frame scanning time, the polarity of the signal transmitted on each data line D remains unchanged, and within the next frame scanning time, the polarity of the signal transmitted on the data line D is reversed. This transformation method of the signal on the data line D is the same as the frame inversion technology in the related art. That is to say, the above-mentioned embodiment of the present invention does not change the signal change method on the data line D, but only changes the connection relationship between the scanning line S and the sub-pixel, thereby realizing a technical solution in which the polarity of the sub-pixels in the first display area A1 and the second display area A2 remains opposite within one frame scanning time, thereby avoiding the liquid crystal panel 100 from forming alternating amplitude and phase in the row direction, thereby helping to avoid the phenomenon of abnormal diffraction orders, and improving the display effect of the liquid crystal panel 100 without increasing the difficulty of manufacturing the liquid crystal panel 100.

[0141] In an optional embodiment of the present invention, please combine Fig.16 , the sub-pixels form a plurality of sub-pixel columns L, each of the sub-pixel columns L is arranged along the first direction; each sub-pixel in the same sub-pixel column L is electrically connected to one of the data lines D; the driving method comprises:

[0142] In the first half frame time corresponding to the same scanning subframe, the even-numbered sub-pixels in each sub-pixel row H with the same color in the first display area A1 are scanned row by row, and a signal of the first polarity is provided to the corresponding sub-pixel through the data line D; the odd-numbered sub-pixels in each sub-pixel row H with the same color in the second display area A2 are scanned row by row, and a signal of the second polarity is provided to the corresponding sub-pixel through the data line D;

[0143] In the second half frame time corresponding to the same scanning subframe, the odd-numbered sub-pixels in each sub-pixel row H with the same color in the first display area A1 are scanned row by row, and a signal of the first polarity is provided to the corresponding sub-pixel through the data line D; the even-numbered sub-pixels in each sub-pixel row H with the same color in the second display area A2 are scanned row by row, and a signal of the second polarity is provided to the corresponding sub-pixel through the data line D.

[0144] Specifically, the driving method is applied to Fig.16 The scheme of the liquid crystal panel 100 shown is also explained by taking color-by-color scanning as an example. One frame scanning time corresponds to three scanning subframes, and only subpixels of one color are scanned in the time corresponding to each scanning subframe, and the colors of subpixels scanned by different scanning subframes are different. In the first half frame time corresponding to the same scanning subframe, part of the subpixels in each subpixel row H of the same color in the first display area A1 are scanned row by row, and part of the subpixels in each subpixel row H of the same color in the second display area A2 are scanned row by row, that is, in the first half frame time corresponding to the same scanning subframe, only part of the subpixels in the subpixel row H of the same color in the first display area A1 and the second display area A2 receive data signals. In the second half frame time corresponding to the same scanning subframe, the unscanned subpixels in each subpixel row H with the same color in the display area AA are scanned row by row, and the unscanned subpixels in each subpixel row H with the same color in the second display area A2 are scanned row by row. That is to say, in the second half frame time corresponding to the same scanning subframe, the scanning of the remaining subpixels in the subpixel row H with the same color in the first display area A1 and the second display area A2 is completed, thereby completing the scanning of the subpixels of the above-mentioned colors in the first display area A1 and the second display area A2.

[0145] It should be noted that the specific scanning method can be referred to in the previous article. Figures 16 to 20 The text description part will not be repeated here.

[0146] When the liquid crystal panel 100 is driven by the above-mentioned driving method, at the same time, the polarities of the data signals on any two adjacent data lines D are opposite. Therefore, it is only necessary to set the change time of the polarity of the data signal on the data signal line to realize the opposite polarity of the signals of the sub-pixels corresponding to the first display area A1 and the second display area A2 within one frame scanning time. Therefore, the control logic of the control chip is simplified.

[0147] Based on the same inventive concept, the present invention further provides a holographic 3D display device 200, Fig.23 FIG. 2 is a schematic diagram of a structure of a holographic 3D display device 200 provided in an embodiment of the present invention. The holographic 3D display device 200 includes:

[0148] A light source device 111, wherein the light source device 111 is used to sequentially emit coherent RGB three-color light;

[0149] A beam expansion and collimation component 112, used for expanding and collimating the light emitted by the light source device;

[0150] A spatial light modulator 113 is used to sequentially perform phase modulation and amplitude modulation on the light emitted by the beam expansion and collimation component;

[0151] A field lens 114 and a grating 115, wherein the field lens 114 is at least used to improve the ability of edge light of the light emitted by the spatial light modulator 113 to be incident on the grating 115; the grating 115 is used to form a left-eye image and a right-eye image based on the incident light;

[0152] The spatial light modulator 113 includes a first liquid crystal panel 1001 for phase modulation and a second liquid crystal panel 1002 for amplitude modulation, and at least one of the first liquid crystal panel 1001 and the second liquid crystal panel 1002 is the liquid crystal panel 100 described in any of the above embodiments of the present invention.

[0153] In the holographic 3D display device 200, the first liquid crystal panel 1001 and the second liquid crystal panel 1002 in the spatial light modulator are used for phase modulation and amplitude modulation respectively, and the two panels are bonded with pixel-level precision, so that the incident light passes through the corresponding pixels of the two panels in sequence, and the amplitude and phase are respectively adjusted, thereby completing the holographic display. Considering that the diffraction-based spatial light modulator has high requirements for the uniformity of adjacent columns, when the first liquid crystal panel 1001 and / or the second liquid crystal panel 1002 in the spatial light modulator is implemented by the liquid crystal panel 100 provided by the above embodiment, it can effectively avoid the situation where the polarity of the signals of any two adjacent columns of sub-pixels in the liquid crystal panel is opposite, and avoid the liquid crystal panel from forming alternating amplitudes and phases in the row direction, which is conducive to avoiding the phenomenon of abnormal diffraction orders, and therefore is conducive to improving the display effect of the holographic 3D display device 200.

[0154] In summary, the liquid crystal panel and its driving method and the holographic 3D display device provided by the present invention achieve at least the following beneficial effects:

[0155] In the liquid crystal panel and the driving method thereof provided in the present application, the liquid crystal panel includes sub-pixels arranged in an array along a first direction and a second direction, and each sub-pixel receives a scan signal through a scan line and receives a data signal through a data line. The display area includes a first display area and a second display area arranged along the second direction. Within a frame scan time, a signal of a first polarity is sent to each sub-pixel in the first display area through a data line, and a signal of a second polarity is sent to each sub-pixel in the second display area through a data line, and the first polarity is opposite to the second polarity. That is to say, within a frame scan time, the polarity of the signal received by each sub-pixel in the first display area is the same, and is opposite to the polarity of the signal received by each sub-pixel in the second display area, thereby avoiding the situation where the polarity of the signals of any two adjacent columns of sub-pixels in the liquid crystal panel is opposite, and avoiding the liquid crystal panel from forming an alternating amplitude and phase in the row direction, which is conducive to avoiding the phenomenon of abnormal diffraction orders, and thus is conducive to improving the display effect of the liquid crystal panel. When the above-mentioned liquid crystal panel is applied to a holographic 3D display device, it is conducive to improving the display effect of the display device.

[0156] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A liquid crystal panel, characterized in that: A display area and a non-display area are provided, and the liquid crystal panel includes: a plurality of scan lines and a plurality of data lines, wherein the scan lines extend along a first direction and are arranged along a second direction, the data lines extend along the second direction and are arranged along the first direction, and the first direction and the second direction intersect; Sub-pixels are arranged in an array along the first direction and the second direction, the sub-pixels are located in the display area, and each sub-pixel is electrically connected to one of the scan lines and one of the data lines respectively; The display area includes a first display area and a second display area arranged along the second direction, and within one frame scanning time, the signal received by each of the sub-pixels in the first display area through the data line is a first polarity, and the signal received by each of the sub-pixels in the second display area through the data line is a second polarity, and the first polarity is opposite to the second polarity; The sub-pixels form a plurality of sub-pixel rows and a plurality of sub-pixel columns, each of the sub-pixel rows is arranged along the second direction, and each of the sub-pixel columns is arranged along the first direction; the same sub-pixel row corresponds to two of the scan lines, and the two scan lines are respectively a first scan line and a second scan line; in the first display area, in the same sub-pixel row, the first scan line is electrically connected to the even-numbered sub-pixels, and the second scan line is electrically connected to the odd-numbered sub-pixels; in the second display area, in the same sub-pixel row, the first scan line is electrically connected to the odd-numbered sub-pixels, and the second scan line is electrically connected to the even-numbered sub-pixels; each sub-pixel in the same sub-pixel column is electrically connected to one of the data lines, and the polarities of the signals received by the two data lines corresponding to any two adjacent sub-pixel columns at the same time are opposite; It also includes a first gate driving circuit and a second gate driving circuit, the first gate driving circuit includes a first sub-gate driving circuit and a second sub-gate driving circuit, and the second gate driving circuit includes a third sub-gate driving circuit and a fourth sub-gate driving circuit; in the first display area, the first scanning lines corresponding to a row of sub-pixel rows are electrically connected to the first sub-gate driving circuit, and the second scanning lines corresponding to a row of sub-pixel rows are electrically connected to the second sub-gate driving circuit; in the second display area, the first scanning lines corresponding to a row of sub-pixel rows are electrically connected to the third sub-gate driving circuit, and the second scanning lines corresponding to a row of sub-pixel rows are electrically connected to the fourth sub-gate driving circuit; the first sub-gate driving circuit and the third sub-gate driving circuit simultaneously send scanning signals to the corresponding scanning lines, and the second sub-gate driving circuit and the fourth sub-gate driving circuit simultaneously send scanning signals to the corresponding scanning lines; The liquid crystal panel also includes a driving chip, which includes a plurality of data signal output terminals connected to the data lines; wherein at the same time, the polarities of the data signals output by two adjacent data signal output terminals of the driving chip are opposite.

2. The liquid crystal panel according to claim 1, characterized in that: The sub-pixels form a plurality of sub-pixel rows, each of which is arranged along the second direction; sub-pixels corresponding to the same sub-pixel row have the same color, and sub-pixels corresponding to any two adjacent sub-pixel rows have different colors, and the number of sub-pixel colors is n, where n≥3; The one-frame scanning time includes n scanning sub-frames, and in the same scanning sub-frame, only sub-pixels of the same color are scanned.

3. The liquid crystal panel according to claim 1, characterized in that: The display area includes at least two sub-areas, and each sub-area includes a first display area and a second display area.

4. A method for driving a liquid crystal panel, characterized in that: Applied to the liquid crystal panel according to any one of claims 1 to 3, the driving method comprises: In one frame scanning time, a signal of a first polarity is sent to the sub-pixels in the first display area through the data line, and a signal of a second polarity is sent to the sub-pixels in the second display area through the data line, wherein the first polarity is opposite to the second polarity.

5. The driving method according to claim 4, characterized in that: The sub-pixel colors include at least three types, and the one-frame scanning time includes at least three scanning sub-frames; During the one-frame scanning time: in the same scanning subframe, only sub-pixels of the same color are scanned, and in different scanning subframes, sub-pixels of different colors are scanned respectively.

6. The driving method according to claim 4, characterized in that: The sub-pixels form a plurality of sub-pixel columns, each of which is arranged along the first direction; in the same sub-pixel column, the sub-pixels located in the first display area are electrically connected to the same data line, and the sub-pixels located in the second display area are electrically connected to another data line; The driving method comprises: In the same scanning subframe, each sub-pixel row with the same color in the first display area is scanned row by row, and a signal of the first polarity is provided to the corresponding sub-pixel through the data line; at the same time, each sub-pixel row with the same color in the second display area is scanned row by row, and a signal of the second polarity is provided to the corresponding sub-pixel through the data line.

7. The driving method according to claim 4, characterized in that: The sub-pixels form a plurality of sub-pixel columns, each of which is arranged along the first direction; each sub-pixel in the same sub-pixel column is electrically connected to one of the data lines; The driving method comprises: In the first half frame time corresponding to the same scanning subframe, the even-numbered sub-pixels in each sub-pixel row with the same color in the first display area are scanned row by row, and a signal of the first polarity is provided to the corresponding sub-pixel through the data line; the odd-numbered sub-pixels in each sub-pixel row with the same color in the second display area are scanned row by row, and a signal of the second polarity is provided to the corresponding sub-pixel through the data line; In the second half frame time corresponding to the same scanning subframe, the odd-numbered sub-pixels in each sub-pixel row with the same color in the first display area are scanned row by row, and a signal of the first polarity is provided to the corresponding sub-pixels through the data line; the even-numbered sub-pixels in each sub-pixel row with the same color in the second display area are scanned row by row, and a signal of the second polarity is provided to the corresponding sub-pixel through the data line.

8. A holographic 3D display device, characterized in that: include: A light source device, the light source device is used to emit coherent RGB three-color light in time sequence; A beam expansion and collimation component, used for expanding and collimating the light emitted by the light source device; A spatial light modulator, used for sequentially performing phase modulation and amplitude modulation on the light emitted by the beam expansion and collimation component; A field lens and a grating, wherein the field lens is at least used to improve the ability of edge light of the spatial light modulator to be incident on the grating; the grating is used to form a left-eye image and a right-eye image based on the incident light; The spatial light modulator comprises a first liquid crystal panel for phase modulation and a second liquid crystal panel for amplitude modulation, and at least one of the first liquid crystal panel and the second liquid crystal panel is the liquid crystal panel described in any one of claims 1 to 3.

Images