Display panel and display device

Abstract

The present invention discloses a display panel and a display device, wherein the display panel comprises an array substrate, the array substrate comprises a base substrate, the base substrate comprises a plurality of first signal lines and a plurality of second signal lines, the plurality of first signal lines and the plurality of second signal lines intersect to define a plurality of pixel units, the display panel is a dot inversion display panel, the pixel units comprise a first pixel unit and a second pixel unit, the first electrode in an even number of adjacent first pixel units has a first slit extending along a first direction, and the first electrode in an even number of adjacent second pixel units has a second slit extending along a second direction, the first direction intersects with the second direction, the first slit and the second slit respectively form an angle with the first signal line, the angle is not equal to 0°, and the even number of first pixel units are adjacent to the even number of second pixel units in both the row direction and the column direction. The present invention improves the problem of flickering of the dot inversion display panel under a grayscale picture with a large viewing angle.

Description

[0001] This application is a divisional application with the application date of November 27, 2019, application number 201911180869.8, and the name of the invention being “Display panel and display device”. Technical Field

[0002] The present invention relates to the field of display technology, and more particularly, to a display panel and a display device. Background Art

[0003] In the current display field, pixel design is divided into two modes: horizontal domain and vertical domain. Among them, horizontal domain pixel design is superior to vertical domain pixel design in terms of brightness viewing angle and contrast viewing angle in the horizontal direction. The horizontal domain is divided into pseudo horizontal domain and horizontal double domain. The pseudo horizontal domain pixel design avoids the risk of rubbing (friction) smearing and light leakage leading to poor contrast during the rubbing process and has attracted widespread attention. However, the pseudo horizontal domain has the problem of grayscale flickering at a large viewing angle under point inversion drive. Summary of the invention

[0004] In view of this, the present invention provides a display panel and a display device to solve the problem of grayscale image flickering under a wide viewing angle.

[0005] On the one hand, the present invention provides a display panel, comprising a color filter substrate and an array substrate arranged opposite to each other, and a liquid crystal layer sandwiched between the color filter substrate and the array substrate, wherein the liquid crystal layer comprises liquid crystal molecules, the array substrate comprises a base substrate, the base substrate comprises a plurality of first signal lines arranged along a column direction and extending along a row direction, and a plurality of second signal lines arranged along a row direction and extending along a column direction, wherein the plurality of first signal lines and the plurality of second signal lines cross to define a plurality of pixel units, the array substrate further comprises a first electrode and a second electrode arranged on the base substrate, the first electrode is located on a side of the second electrode close to the liquid crystal layer, wherein:

[0006] The display panel is a dot inversion display panel;

[0007] The pixel unit includes a first pixel unit and a second pixel unit, the first electrode in an even number of adjacent first pixel units has a first slit extending along a first direction, and the first electrode in an even number of adjacent second pixel units has a second slit extending along a second direction, the first direction and the second direction intersect with each other, the first slit and the second slit respectively form an angle with the first signal line, the angle is not equal to 0°, and an even number of the first pixel units are adjacent to an even number of the second pixel units in both the row direction and the column direction.

[0008] Optionally, the first pixel units are arranged along an extending direction of the first signal line.

[0009] Optionally, the first pixel units are arranged along a direction in which the second signal line extends.

[0010] Optionally, the first slit and the second slit are axially symmetrical along the first signal line, or the first slit and the second slit are axially symmetrical along the second signal line.

[0011] Optionally, the length of the first slit in the first direction is a, and the length of the second slit in the second direction is b, wherein a=b.

[0012] Optionally, when the first electrode is a common electrode and the second electrode is a pixel electrode, the pixel electrode is located on a side of the common electrode close to the base substrate.

[0013] Optionally, when the first electrode is a pixel electrode, the second electrode is a common electrode, and the common electrode is located on a side of the pixel electrode close to the base substrate.

[0014] Optionally, a grayscale voltage is connected to the pixel electrode so that the display panel displays a gray image.

[0015] Optionally, two first signal lines are arranged between two adjacent rows of pixel units, two pixel units are arranged between two adjacent second signal lines, and for the pixel units in the same row, two pixel units connected to the same second signal line are respectively connected to different first signal lines.

[0016] On the other hand, the present invention further provides a display device, comprising the above-mentioned display panel, and a backlight module arranged opposite to the display panel.

[0017] Compared with the prior art, the display panel and display device provided by the present invention achieve at least the following beneficial effects:

[0018] In the display panel of the present invention, the first electrodes of an even number of adjacent first pixel units have a first slit extending along the first direction, and the first electrodes of an even number of adjacent second pixel units have a second slit extending along the second direction, the even number of first pixel units are adjacent to the even number of second pixel units in both the row direction X and the column direction Y, and the brightness of the even number of first pixel units (or the even number of second pixel units) is neutralized after the positive and negative voltages are applied, that is, the brightness difference of the positive and negative polarities can compensate each other, thereby improving the flickering problem caused by dot inversion at a large viewing angle.

[0019] 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.

[0020] 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

[0021] 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.

[0022] Figure 1 It is a structural schematic diagram of a display panel provided by the prior art;

[0023] Figure 2 and Figure 3 yes Figure 1 Schematic diagram of brightness of adjacent pixel units;

[0024] Figure 4 It is the voltage and brightness characteristic curve of the display panel;

[0025] Figure 5 and Figure 6 It is a schematic diagram of forming a Flicker screen;

[0026] Figure 7 is a schematic diagram of a planar structure of a display panel provided by the present invention;

[0027] Figure 8 yes Figure 7 Middle m-m' section;

[0028] Fig. 9 yes Figure 7 The middle display panel is viewed at a large viewing angle;

[0029] Fig.10 is a schematic diagram of a planar structure of another display panel provided by the present invention;

[0030] Fig.11 is a schematic diagram of a planar structure of another display panel provided by the present invention;

[0031] Fig.12 is a schematic diagram of a planar structure of another display panel provided by the present invention;

[0032] Fig.13 This is a schematic diagram of the planar structure of a display device provided by the present invention. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0037] 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.

[0038] In view of the problem that the pseudo-horizontal dual-domain display panel has flickering in a grayscale image with a large viewing angle under dot inversion driving, the inventors have conducted the following research on the display panel of the prior art.

[0039] Please refer to Figures 1 to 4 , Figure 1 is a structural schematic diagram of a display panel provided by the prior art. Figure 2 and Figure 3 yes Figure 1 Schematic diagram of brightness of adjacent pixel units, Figure 4 is the voltage and brightness characteristic curve of the display panel. Figure 5 and Figure 6 It is a schematic diagram of forming a Flicker screen.

[0040] Reference Figure 1 , Figure 1The display panel 000 includes a plurality of first signal lines 6' arranged along the column direction Y and extending along the row direction X, and a plurality of second signal lines 7' arranged along the row direction X and extending along the column direction Y. The plurality of first signal lines 6' and the plurality of second signal lines 7' cross to define a plurality of pixel units 10', each pixel unit 10' includes a pixel electrode 8', and the pixel unit 10' includes a first pixel unit 101' and a second pixel unit 102'. The pixel electrode 8' in the first pixel unit 101' has a first slit 103 extending along the first direction. ', the pixel electrode 8' in the second pixel unit 102' has a second slit 104' extending along the second direction, the first direction U and the second direction V intersect each other, the first slit 103' and the second slit 104' are respectively at an angle with the first signal line 6', the angle is not equal to 0°, the first slits of each two adjacent pixel electrodes 8 along the row direction X are different, the first pixel unit 101' is adjacent to the second pixel unit 102' in both the row direction X and the column direction Y, that is, the pixel electrode 8' in the display panel 00 is a pseudo-horizontal dual domain. At the same time Figure 1 The display panel 000 is a dot inversion display panel. In the same frame, each pixel unit 10' (dot) maintains the opposite polarity to the four adjacent pixel units 10' (dots) above, below, left and right. This driving method is called dot inversion. In the next frame, the voltage polarity of all pixel units 10' is reversed at the same time, and the adjacent pixel units 10' continue to maintain the opposite polarity. Figure 1 The first pixel unit 101 ′ with positive polarity has negative polarity in the next frame, and the second pixel unit 102 ′ with negative polarity has positive polarity in the next frame.

[0041] Reference Figure 2 and Figure 3 , Figure 2 and Figure 3 yes Figure 1 Schematic diagram of brightness of adjacent pixel units, Figure 2 and Figure 3 The curves in the figure are brightness contour lines. The colors from the outer edge of the circle to the center are blue, green, yellow, and red (not shown in the figure), indicating that the closer to the center, the brighter the brightness. Figure 2 The pixel brightness image of the first pixel unit 101' is shown in FIG. Figure 2 When you look at the pixel along the direction of the first slit (arrow direction), the pixel brightness is higher, and when you look at the pixel from other directions, it will be darker; Figure 3 The pixel brightness image of the second pixel unit 102' is shown in FIG. Figure 3When the pixel is viewed along the direction of the second slit (arrow direction), the pixel brightness is higher, and when the pixel is viewed from other angles, it will be dark. It can be understood that when the second pixel unit 102' is viewed along the direction of the first slit, the pixel will be darker, so when the first pixel unit 101' and the second pixel unit 102' are viewed from the same viewing angle, one will be bright and the other will be dark, resulting in a display mode similar to a Flicker screen, causing a large viewing angle grayscale flicker phenomenon. The Flicker screen can be understood as follows:

[0042] The LCD panel is driven by AC voltage and therefore requires positive and negative voltages. Figure 4 The figure shows the brightness characteristic curve of the liquid crystal display panel when voltage is applied. As shown in the figure, the brightness is the same when the liquid crystal is driven by a voltage of ±4V ( Figure 4 There will be no flickering problem at point A and point B in the figure. However, due to the impact of the display panel's collapse voltage, insufficient charging, wiring delay, etc., the absolute values ​​of the positive and negative voltages are different. For example, the positive voltage may be greater than 4V and the negative voltage may be greater than -4V, resulting in different corresponding brightness ( Figure 4 Point C and point D in the figure), so when positive and negative voltages are applied, flickering occurs. Flickering refers to the voltage when the display image is frame-inverted and the positive and negative voltages are adjusted to achieve the least flickering display image. Figure 5 and Figure 6 In order to adjust the optimal voltage, for a dot inversion display panel, two electrodes with different polarities can be covered by selecting one of the electrodes with different polarities, for example, selecting the voltage for a black screen, such as Figure 5 and Figure 6 As shown, Figure 5 This is a schematic diagram of the previous frame. Figure 5 A schematic diagram of a pixel voltage providing a positive polarity voltage, Figure 6 This is a schematic diagram of the next frame. Figure 6 Schematic diagram of pixel voltage in which a negative polarity voltage is provided, and positive and negative voltages are provided one by one in this way. When the displayed image is least flickering, the voltage is the optimal voltage, and this is the Flicker image.

[0043] Although the pseudo dual domain in the prior art does not produce a flickering image during dot inversion, the first pixel unit 101' and the second pixel unit 102' will appear bright and dark when viewed from the same viewing angle (wide viewing angle), resulting in a wide viewing angle grayscale flickering phenomenon.

[0044] In order to solve the above technical problems, the present invention provides a display panel and a display device. The embodiments of the display panel provided by the present invention will be described in detail below.

[0045] Combination Figure 7 and Figure 8 , Figure 7 is a schematic diagram of a planar structure of a display panel provided by the present invention, Figure 8 yes Figure 7 The cross-section along the m-m' axis is shown in the figure. Figure 8 The display panel 100 includes a color filter substrate 1 and an array substrate 2 that are arranged opposite to each other, and a liquid crystal layer 3 sandwiched between the color filter substrate 1 and the array substrate 2. The liquid crystal layer 3 includes liquid crystal molecules 4. The array substrate 2 includes a base substrate 5. The base substrate 5 includes a plurality of first signal lines 6 arranged along a column direction Y and extending along a row direction X, and a plurality of second signal lines 7 arranged along the row direction X and extending along a column direction Y. The plurality of first signal lines 6 and the plurality of second signal lines 7 cross to define a plurality of pixel units 10. The array substrate 2 also includes a first electrode 8 and a second electrode 9 arranged on the base substrate 5. The first electrode 8 is located on a side of the second electrode 9 close to the liquid crystal layer 3.

[0046] The display panel 100 in the present invention is a dot inversion display panel. It can be understood that the display panel in the present invention is a dot inversion display panel. In the same frame, each pixel unit (dot) maintains the opposite polarity to the pixel unit (dot) adjacent to it in the row direction and the column direction. This driving mode is called dot inversion. In the next frame, the voltage polarity of all pixel units is reversed at the same time, and the adjacent pixel units in the row direction and the column direction continue to maintain the opposite polarity.

[0047] Figure 7 In the figure, the pixel unit 10 includes a first pixel unit 101 and a second pixel unit 102, the first electrode 8 in an even number of adjacent first pixel units 101 has a first slit 103 extending along a first direction U, and the first electrode 8 in an even number of adjacent second pixel units 102 has a second slit 104 extending along a second direction V, the first direction U and the second direction V intersect with each other, the first slit 103 and the second slit 104 respectively form an angle with the first signal line 6, the angle is not equal to 0°, and the even number of first pixel units 101 are adjacent to the even number of second pixel units 102 in both the row direction X and the column direction Y.

[0048] It should be noted that the present invention does not specifically limit the angle between the first slit 103 and the second slit 104 and the first signal line 6 , as long as the angle is not equal to 0°. Optionally, the angle may be an acute angle or an obtuse angle.

[0049] Of course, there is also a driving circuit on the array substrate 2 . The driving circuit includes a thin film transistor (not shown in the figure). There is also an insulating layer between the first electrode 8 and the second electrode 9 .

[0050] Figure 7It is only shown that the first electrodes 8 of two adjacent first pixel units 101 have the first slits 103 extending along the first direction U, and the first electrodes 8 of two adjacent second pixel units 102 have the second slits 104 extending along the second direction V. The two first pixel units 101 are adjacent to the two second pixel units 102 in the row direction X and the column direction Y. Of course, four or more even-numbered first pixel units 101 may be adjacent to four or more even-numbered second pixel units 102 in the row direction X and the column direction Y, and no specific limitation is made here.

[0051] Reference Figure 7 , combined with Figure 2 , Figure 3 , Figure 4 and Fig. 9 , Fig. 9 yes Figure 7 The middle display panel is viewed at a large viewing angle; Fig. 9 Only a schematic diagram of viewing the display panel along the first direction U is shown in the figure. When viewing the display panel along the first direction U, the first pixel unit 101 having the first slit 103 arranged along the first direction U appears brighter, and the second pixel unit 101 having the second slit ( Fig. 9 The second pixel unit 102 (which is covered in the image) will be darker ( Fig. 9 The even number of adjacent first pixel units 101 is an even number of pixel units with opposite polarities. According to the principle of the above-mentioned Flicker screen, after obtaining the optimal voltage, the brightness difference of the positive and negative polarities can compensate each other. For example, the optimal voltage is +5V and -4V. In this frame, the brightness of the two adjacent first pixel units 101 is respectively +5V and -4V corresponding to the brightness, and the brightness of the two first pixel units 101 is neutralized. Similarly, in the next frame, the brightness of the two adjacent first pixel units 101 is respectively -5V and +4V and the brightness is also neutralized accordingly. That is, the brightness difference of the positive and negative polarities can compensate each other, thereby improving the flickering problem caused by dot inversion at a large viewing angle.

[0052] Similarly, when the display panel is viewed along the second direction V, the second pixel unit 102 having the second slit 104 provided along the second direction V appears brighter, and the first pixel unit 101 having the first slit 103 provided along the first direction U appears darker, and these even number of adjacent second pixel units 101 are an even number of pixel units with opposite polarities. According to the principle of the above-mentioned Flicker screen, after obtaining the optimal voltage, the brightness difference of the positive and negative polarities can compensate each other. For example, the optimal voltage is +5V and -4V. In this frame of the screen, the brightness of the two adjacent second pixel units 102 is the neutralization of the brightness under +5V and -4V respectively. When in the next frame of the screen, the brightness of the two adjacent second pixel units 102 is the neutralization of the brightness under -5V and +4V respectively, that is, the brightness difference of the positive and negative polarities can compensate each other, thereby improving the problem of flickering caused by point inversion at a large viewing angle.

[0053] Reference Fig.10 , Fig.10 is a schematic diagram of a planar structure of another display panel provided by the present invention, Fig.10 The pixel unit 10 includes a first pixel unit 101 and a second pixel unit 102. The first electrode 8 in four adjacent first pixel units 101 has a first slit 103 extending along a first direction U, and the first electrode 8 in four adjacent second pixel units 102 has a second slit 104 extending along a second direction V. The first direction U and the second direction V intersect with each other. The first slit 103 and the second slit 104 are respectively at an angle with the first signal line 6, and the angle is not equal to 0°. The four first pixel units 101 are adjacent to the four second pixel units 102 in the row direction X and the column direction Y.

[0054] Reference Fig.10 , combined with Figure 2 , Figure 3 and Figure 4 When the display panel is viewed along the first direction U, the first pixel unit 101 having the first slit 103 along the first direction U appears brighter, and the four adjacent first pixel units 101 are four pixel units with opposite polarities. According to the principle of the above-mentioned Flicker picture, after obtaining the optimal voltage, the brightness difference of the positive and negative polarities can compensate each other. For example, the optimal voltage is +5V and -4V. In this frame, the brightness of the four adjacent first pixel units 101 is respectively +5V, -4V, +5V and -4V. Of course, the brightness corresponding to the brightness when the voltage is +5V will be greater than the brightness corresponding to the voltage of -4V. The brightness of the four first pixel units 101 is neutralized. Similarly, in the next frame, the brightness of the four adjacent first pixel units 101 at -5V, +4V, -5V and +4V is also neutralized accordingly, that is, the brightness difference of the positive and negative polarities can compensate each other, thereby improving the flickering problem caused by point inversion at a large viewing angle. (The principle can be referred to Figure 7and Fig. 9 ); Similarly, when the display panel is viewed along the second direction V, the second pixel unit 102 having the second slit 104 along the second direction V appears brighter, while the four adjacent second pixel units 101 are four pixel units with opposite polarities. According to the principle of the above-mentioned Flicker picture, after obtaining the optimal voltage, the brightness difference of the positive and negative polarities can compensate each other. For example, the optimal voltage is +5V and -4V. In this frame, the brightness of the four adjacent second pixel units 102 is the neutralization of the brightness under +5V, -4V, +5V and -4V respectively. When in the next frame, the brightness of the four adjacent second pixel units 102 is the neutralization of the brightness under -5V, +4V, -5V and +4V respectively. That is, the brightness difference of the positive and negative polarities can compensate each other, thereby improving the problem of flickering caused by point inversion at a large viewing angle.

[0055] Compared with the prior art, the display panel provided by the present invention has at least the following beneficial effects:

[0056] In the display panel of the present invention, the first electrode 8 in an even number of adjacent first pixel units 101 has a first slit 103 extending along the first direction U, and the first electrode 8 in an even number of adjacent second pixel units 102 has a second slit 104 extending along the second direction V. The even number of first pixel units 101 are adjacent to the even number of second pixel units 102 in both the row direction X and the column direction Y. The brightness of the even number of first pixel units 101 (or the even number of second pixel units 102) is neutralized after the positive and negative voltages are applied, that is, the brightness difference of the positive and negative polarities can compensate each other, thereby improving the problem of flickering caused by dot inversion at a large viewing angle, and the design of the pseudo horizontal domain has the advantages of good viewing angle and slight rubbing mura (fine lines due to poor friction).

[0057] Continue to refer to Figure 7 and Fig.10 , Figure 7 and Fig.10 The first pixel units 101 are arranged along the direction in which the first signal line 6 extends. The first electrode 8 in the even number of adjacent first pixel units 101 in the row direction X has a first slit 103 extending along the first direction U, and the first electrode 8 in the even number of adjacent second pixel units 102 has a second slit 104 extending along the second direction V. The even number of first pixel units 101 are adjacent to the even number of second pixel units 102 in both the row direction X and the column direction Y. The brightness of the even number of first pixel units 101 (or the even number of second pixel units 102) in the row direction is neutralized after the positive and negative voltages are applied, that is, the brightness difference of the positive and negative polarities can compensate each other, improving the flickering problem of dot inversion at a large viewing angle. .

[0058] Reference Fig.11 , Fig.11It is a schematic diagram of the planar structure of another display panel provided by the present invention. The first pixel units 101 are arranged along the direction in which the second signal line 7 extends. The first electrode 8 in an even number of adjacent first pixel units 101 has a first slit 103 extending along the first direction U, and the first electrode 8 in an even number of adjacent second pixel units 102 has a second slit 104 extending along the second direction V. The even number of first pixel units 101 are adjacent to the even number of second pixel units 102 in both the row direction X and the column direction Y. The first pixel units 101 are arranged along the direction in which the second signal line 7 extends. The brightness of the even number of first pixel units 101 (or the even number of second pixel units 102) in the column direction is neutralized after the positive and negative voltages are applied, that is, the brightness difference of the positive and negative polarities can compensate each other, thereby improving the flickering problem caused by the large viewing angle of the dot inversion.

[0059] Continue to refer to Figure 7 , Fig.10 and Fig.11 The first slit 103 and the second slit 104 are axially symmetrical along the first signal line 6 , or the first slit 103 and the second slit 104 are axially symmetrical along the second signal line 7 .

[0060] It can be understood that the first electrode 8 is provided with the first slit 103 or the second slit 104, that is, the first electrode 8 has different domain directions, and the first slit 103 or the second slit 104 can induce the liquid crystal molecules in different domains to fall in different directions, thereby improving the color deviation, and the first slit 103 and the second slit 104 are axially symmetrical along the first signal line 6, or the first slit 103 and the second slit 104 are axially symmetrical along the second signal line 7, which can improve the effect of friction fine lines. It can be understood that in the process of attaching the polarizer, when the domain direction and the polarizer attachment angle are offset, the brightness of the same domain direction will be different, and the brightness difference of the pixel units in different domain directions (the first slit 103 and the second slit 104 are axially symmetrical) will compensate for the friction fine lines, making the friction fine lines relatively slight. At the same time, the first slit 103 and the second slit 104 are axially symmetrical to induce the liquid crystal molecules to fall in two directions. When the display panel is viewed from a large viewing angle, the display content can be well viewed whether the display panel is viewed from the first direction U or the second direction V.

[0061] Continue to refer to Figure 7 and Fig.11 , the length of the first slit 103 in the first direction U is a, and the length of the second slit 104 in the second direction V is b, where a=b.

[0062] It can be understood that the first slit 103 or the second slit 104 provided on the first electrode 8 can induce the liquid crystal molecules in different domains to fall in different directions, thereby improving the color deviation, and the length a of the first slit 103 in the first direction U is equal to the length b of the second slit 104 in the second direction V, which can have the effect of making the friction fine lines relatively mild. It can be understood that when the friction angle and the patch angle are offset, the brightness in the same domain direction will be different, and the length a of the first slit 103 in the first direction U is equal to the length b of the second slit 104 in the second direction V. The difference in brightness of the pixel units in different domain directions (can compensate for the friction fine lines, making the friction fine lines relatively mild. At the same time, the first slit 103 and the second slit 104 induce the liquid crystal molecules to fall in two directions. When the display panel is viewed at a wide viewing angle, the display content can be well viewed whether the display panel is viewed from the first direction U or the second direction V.

[0063] Continue to refer to Figure 8 When the first electrode 8 is a common electrode and the second electrode 9 is a pixel electrode, the pixel electrode is located on a side of the common electrode close to the base substrate 5 .

[0064] When the first electrode 8 is a pixel electrode, the second electrode 9 is a common electrode, and the common electrode is located on a side of the pixel electrode close to the base substrate 5 .

[0065] It can be understood that in the present invention, the first electrode 8 has the first slit 103 or the second slit 104, and the first electrode 8 can be a common electrode or a pixel electrode. As long as the first electrode 8 close to the liquid crystal layer 3 has the first slit 103 or the second slit 104, the purpose of inducing different liquid crystal molecules to fall in different directions can be achieved.

[0066] In some optional embodiments, continue to refer to Figure 8 , connecting the grayscale voltage to the pixel electrode makes the display panel show a gray picture. Because the brightness will change greatly if the grayscale voltage changes slightly, it is easy to see a flickering picture, so at this voltage, it can be adjusted to the voltage when the picture flickers least.

[0067] Continue to refer to Figure 5 and Figure 6 In order to adjust the optimal voltage, for the dot inversion display panel, the two electrodes with different polarities can be covered by selecting one of the electrodes with different polarities, and the voltage for the black screen can be selected, such as Figure 5 and Figure 6 As shown, Figure 5 This is a schematic diagram of the previous frame. Figure 5 A schematic diagram of a pixel voltage providing a positive polarity voltage, Figure 6 This is a schematic diagram of the next frame. Figure 6Schematic diagram of pixel voltage in which a negative polarity voltage is provided, and positive and negative voltages are provided one by one in this way. When the displayed image is least flickering, the voltage is the optimal voltage, and this is the Flicker image.

[0068] The pixel voltage connected to the pixel electrode and the common voltage connected to the common electrode form an electric field to drive the liquid crystal to deflect. It can be understood that when the voltage connected to the pixel electrode in the present invention is a grayscale voltage, the display panel displays a gray image, that is, a Flicker-like image is formed. After the Flicker-like image is formed, combined with Figure 7 and Fig.11 , the first electrode 8 in an even number of adjacent first pixel units 101 has a first slit 103 extending along the first direction U, and the first electrode 8 in an even number of adjacent second pixel units 102 has a second slit 104 extending along the second direction V, the even number of first pixel units 101 are adjacent to the even number of second pixel units 102 in both the row direction X and the column direction Y, and the brightness of the even number of first pixel units 101 (or the even number of second pixel units 102) is neutralized after the positive and negative voltages are applied, that is, the brightness difference of the positive and negative polarities can compensate each other, thereby improving the flickering problem caused by dot inversion at a large viewing angle.

[0069] Reference Fig.12 , Fig.12 It is a schematic diagram of the planar structure of another display panel provided by the present invention. Fig.12 Two first signal lines 6 are arranged between two adjacent rows of pixel units 10, two pixel units 10 are arranged between two adjacent second signal lines 7, and for the same row of pixel units 10, two pixel units 10 connected to the same second signal line 7 are connected to different first signal lines 6 respectively.

[0070] It is understandable that Fig.12 The driving transistor is not shown.

[0071] Fig.12 In the dual-gate structure, Figure 7 On the basis of this embodiment, the flickering phenomenon caused by dot inversion can also be improved, and the principle will not be repeated. Fig.12 and Figure 7 In this embodiment, since two adjacent pixel units 10 share a second signal line 7, the first signal line 6 is scanned line by line during the display panel display process, and the second data line 7 sends data signals respectively. It can be understood that relative to Figure 7 In the structure of the embodiment, the number of the second signal lines 7 is reduced, and the manufacturing cost is reduced.

[0072] Based on the same inventive principle, the present invention further provides a display device, including the display panel 100 provided by the present invention and a backlight module (not shown in the figure) arranged opposite to the display panel 100. Fig.13 As shown, Fig.13 This is a schematic diagram of a planar structure of a display device provided by the present invention. The display device 200 of this embodiment includes the display panel 100 provided by any of the above embodiments. Fig.13 The display device 200 is described only by taking a mobile phone as an example. It can be understood that the display device 200 provided in the embodiment of the present invention can also be a liquid crystal panel, electronic paper, a television, an electronic watch, a car display device, or other display devices with display functions, and the present invention does not specifically limit this. The display device provided in the embodiment of the present invention has the beneficial effects of the display panel provided in the embodiment of the present invention. For details, reference can be made to the specific description of the display panel in the above embodiments, and this embodiment will not be repeated here.

[0073] It can be seen from the above embodiments that the display panel and the display device provided by the present invention achieve at least the following beneficial effects:

[0074] In the display panel of the present invention, the first electrodes of an even number of adjacent first pixel units have a first slit extending along the first direction, and the first electrodes of an even number of adjacent second pixel units have a second slit extending along the second direction, the even number of first pixel units are adjacent to the even number of second pixel units in both the row direction X and the column direction Y, and the brightness of the even number of first pixel units (or the even number of second pixel units) is neutralized after the positive and negative voltages are applied, that is, the brightness difference of the positive and negative polarities can compensate each other, thereby improving the flickering problem caused by dot inversion at a large viewing angle.

[0075] 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 display panel, characterized in that: The display panel is a pseudo-lateral domain dot inversion display panel, comprising a color filter substrate and an array substrate arranged opposite to each other, and a liquid crystal layer sandwiched between the color filter substrate and the array substrate, wherein the liquid crystal layer comprises liquid crystal molecules, the array substrate comprises a base substrate, the base substrate comprises a plurality of first signal lines arranged along the column direction and extending along the row direction, and a plurality of second signal lines arranged along the row direction and extending along the column direction, wherein the plurality of first signal lines and the plurality of second signal lines cross to define a plurality of pixel units, the array substrate further comprises a first electrode and a second electrode arranged on the base substrate, wherein the first electrode is located on a side of the second electrode close to the liquid crystal layer, wherein: The pixel unit includes a first pixel unit and a second pixel unit, the first pixel unit and the second pixel unit are horizontal domains, the first electrode in an even number of adjacent first pixel units has a first slit extending along a first direction, and the first electrode in an even number of adjacent second pixel units has a second slit extending along a second direction, the first direction and the second direction intersect each other, the first slit and the second slit are respectively at an angle with the first signal line, the angle is not equal to 0°, and an even number of the first pixel units are adjacent to an even number of the second pixel units in both the row direction and the column direction; The first pixel units are arranged along the extending direction of the first signal line.

2. The display panel according to claim 1, characterized in that: Two adjacent pixel units share one second signal line.

3. The display panel according to claim 1, characterized in that: The first slit and the second slit are axially symmetrical along the first signal line, or the first slit and the second slit are axially symmetrical along the second signal line.

4. The display panel according to claim 1, characterized in that: The length of the first slit in the first direction is a, and the length of the second slit in the second direction is b, wherein a=b.

5. The display panel according to claim 1, characterized in that: When the first electrode is a common electrode and the second electrode is a pixel electrode, the pixel electrode is located on a side of the common electrode close to the base substrate.

6. The display panel according to claim 1, characterized in that: When the first electrode is a pixel electrode, the second electrode is a common electrode, and the common electrode is located on a side of the pixel electrode close to the base substrate.

7. The display panel according to claim 5 or 6, characterized in that: A grayscale voltage is connected to the pixel electrode so that the display panel displays a gray picture.

8. The display panel according to claim 1, characterized in that: Two first signal lines are arranged between two adjacent rows of pixel units, two pixel units are arranged between two adjacent second signal lines, and for the pixel units in the same row, two pixel units connected to the same second signal line are respectively connected to different first signal lines.

9. A display device, characterized in that: It comprises the display panel as described in any one of claims 1 to 8, and a backlight module arranged opposite to the display panel.

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