CN115343871A

CN115343871A - Display panel and display device

Info

Publication number: CN115343871A
Application number: CN202210919778.7A
Authority: CN
Inventors: 陈华; 刘洪朱; 赵剑
Original assignee: Shanghai Tianma Microelectronics Co Ltd
Current assignee: Shanghai Tianma Microelectronics Co Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2022-11-15
Also published as: CN110780479B; CN110780479A

Abstract

The invention discloses a display panel and a display device, wherein the display panel comprises an array substrate, the array substrate comprises a substrate, the 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 are crossed to define a plurality of pixel units, and the display panel is a point-reversal display panel; the pixel units comprise first pixel units and second pixel units, first electrodes in even number of adjacent first pixel units are provided with first slits extending along a first direction, first electrodes in even number of adjacent second pixel units are provided with second slits extending along a second direction, the first direction and the second direction are mutually crossed, the first slits and the second slits respectively form included angles with first signal lines, the included angles are not equal to 0 degrees, and the even number of first pixel units are adjacent to the even number of second pixel units in the row direction and the column direction. The invention improves the problem that the dot inversion display panel flickers under a large-viewing-angle gray scale picture.

Description

Display panel and display device

The application is a divisional application with the application date of 2019, 11 and 27, and the application number of 201911180869.8, and the name of the divisional application is 'display panel and display device'.

Technical Field

The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.

Background

In the current display field, pixel designs are divided into two modes, namely horizontal domain and vertical domain, wherein the horizontal domain pixel design is superior to the vertical domain pixel design in the horizontal direction at the brightness viewing angle and the contrast viewing angle. The transverse domains are divided into a pseudo transverse domain and a transverse double domain, the pseudo transverse domain pixel design avoids the risk of poor contrast caused by rubbing (friction) trailing light leakage in the rubbing process and is widely concerned, but the pseudo transverse domain has the problem of gray scale picture flickering under a large viewing angle under dot inversion driving.

Disclosure of Invention

In view of the above, the present invention provides a display panel and a display device, so as to solve the problem of flickering of a gray scale image under a large viewing angle.

In one aspect, the present invention provides a display panel, including a color film substrate and an array substrate which are oppositely disposed, and a liquid crystal layer sandwiched between the color film substrate and the array substrate, wherein the liquid crystal layer includes liquid crystal molecules therein, the array substrate includes a substrate, the substrate includes a plurality of first signal lines arranged in a column direction and extending in a row direction, and a plurality of second signal lines arranged in the row direction and extending in the column direction, the plurality of first signal lines and the plurality of second signal lines intersect to define a plurality of pixel units, the array substrate further includes a first electrode and a second electrode disposed on the substrate, the first electrode is disposed on one side of the second electrode close to the liquid crystal layer, wherein,

the display panel is a point-reversal display panel;

the pixel units comprise first pixel units and second pixel units, the first electrodes in even number of adjacent first pixel units are provided with first slits extending along a first direction, the first electrodes in even number of adjacent second pixel units are provided with second slits extending along a second direction, the first direction and the second direction are mutually crossed, the first slits and the second slits respectively form included angles with the first signal lines, the included angles are not equal to 0 degrees, and even number of first pixel units are adjacent to even number of second pixel units in the row direction and the column direction.

Optionally, the first pixel units are arranged along a direction in which the first signal lines extend.

Optionally, the first pixel units are arranged along a direction in which the second signal lines extend.

Optionally, the first slot and the second slot are axisymmetrical along the first signal line, or the first slot and the second slot are axisymmetrical along the second signal line.

Optionally, the length of the first slot in the first direction is a, and the length of the second slot in the second direction is b, where a = b.

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

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

Optionally, a gray scale voltage is connected to the pixel electrode, so that the display panel displays a gray picture.

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

On the other hand, the invention also provides a display device which comprises the display panel and a backlight module which is arranged opposite to the display panel.

Compared with the prior art, the display panel and the display device provided by the invention at least realize the following beneficial effects:

according to the display panel, the first electrodes in even number of adjacent first pixel units are provided with the first slits extending along the first direction, the first electrodes in even number of adjacent second pixel units are provided with the second slits extending along the second direction, the even number of first pixel units are adjacent to the even number of second pixel units in the row direction X and the column direction Y, and the brightness of the even number of first pixel units (or the brightness of the even number of second pixel units is neutralized after positive and negative voltages are applied to the even number of first pixel units, namely, the brightness difference of positive and negative polarities can be compensated with each other, so that the problem of flicker caused by large visual angle of dot inversion is solved.

Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

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

Fig. 1 is a schematic structural diagram of a display panel provided in the prior art;

FIGS. 2 and 3 are schematic diagrams of the brightness of adjacent pixel cells of FIG. 1;

FIG. 4 is a graph showing the voltage vs. luminance characteristics of a display panel;

FIGS. 5 and 6 are schematic diagrams of forming a Flicker screen;

FIG. 7 is a schematic plan view of a display panel according to the present invention;

FIG. 8 is a cross-sectional view taken along line m-m' of FIG. 7;

FIG. 9 is a schematic view of the display panel of FIG. 7 viewed from a large viewing angle;

FIG. 10 is a schematic plan view of a display panel according to another embodiment of the present invention;

FIG. 11 is a schematic plan view of a display panel according to another embodiment of the present invention;

FIG. 12 is a schematic plan view of a display panel according to another embodiment of the present invention;

fig. 13 is a schematic plan view of a display device according to the present invention.

Detailed Description

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 the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

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.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In view of the problem that the display panel with the pseudo-transverse double domains flickers under a large viewing angle gray scale screen under the dot inversion driving, the inventor has conducted the following research on the display panel of the prior art.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a display panel provided in the prior art, fig. 2 and 3 are schematic luminance diagrams of adjacent pixel units in fig. 1, fig. 4 is a characteristic curve of voltage and luminance of the display panel, and fig. 5 and 6 are schematic diagrams of forming a Flicker picture.

Referring to fig. 1, the display panel 000 of fig. 1 includes a plurality of first signal lines 6' arranged in a column direction Y and extending in a row direction X and a plurality of second signal lines 7' arranged in the row direction X and extending in the column direction Y, a plurality of pixel units 10' defined where the first signal lines 6' and the second signal lines 7' intersect, each pixel unit 10' including a pixel electrode 8', the pixel unit 10' including a first pixel unit 101' and a second pixel unit 102', the pixel electrode 8' in the first pixel unit 101' having a first slit 103' extending in the first direction, the pixel electrode 8' in the second pixel unit 102' having a second slit 104' extending in the second direction, the first direction U intersecting the second direction V, the first slit 103' and the second slit 104' being at an angle different from 0 ° with respect to the first signal line 6', the first slit 103' and the second slit 104' being different from each other for every two adjacent pixel electrodes 8 in the row direction X, the first pixel unit 101' being different from each other for a two adjacent pixel units, i.e., the pixel unit 10' and the display panel including a double-domain of the two adjacent pixel units 8. While the display panel 000 in fig. 1 is a dot-inverted display panel. In the same frame, each pixel unit 10 '(dot) and its adjacent four adjacent pixel units 10' (dot) maintain opposite polarities, which is called dot inversion, in the next frame, the voltage polarities of all the pixel units 10 'are inverted simultaneously, the adjacent pixel units 10' continue to maintain opposite polarities, the first pixel unit 101 'with positive polarity in fig. 1 has negative polarity in the next frame, and the second pixel unit 102' with negative polarity in the next frame has positive polarity.

Referring to fig. 2 and 3, fig. 2 and 3 are schematic diagrams of the brightness of adjacent pixel units in fig. 1, the curves in fig. 2 and 3 are brightness contour lines, the colors from the outer edge of the circle to the center of the circle are blue, green, yellow and red (not shown in the figure), respectively, which indicate that the brightness is larger as the brightness is closer to the center position, the pixel brightness image of the first pixel unit 101' is shown in fig. 2, the pixel brightness is higher when the pixel is seen along the direction of the first slit (arrow direction) in fig. 2, and the pixel is dark when the pixel is seen from other directions; the pixel luminance image of the second pixel cell 102' is shown in fig. 3, where the pixel luminance is higher when the pixel is viewed along the direction of the second slit (arrow direction) in fig. 3, and the pixel is darkened when viewed from other angles. It can be understood that when the second pixel unit 102' is viewed along the first slit direction, the pixel is dark, so that when the first pixel unit 101' and the second pixel unit 102' are viewed from the same viewing angle, the pixel is bright and dark, and a Flicker-like display mode is generated, resulting in a large viewing angle gray scale Flicker phenomenon. The following can be understood for the Flicker picture:

the liquid crystal display panel is driven by an alternating voltage and therefore needs positive and negative voltages, fig. 4 shows a luminance characteristic curve when the voltage is applied to the liquid crystal display panel, for example, the luminance is the same when the voltage of ± 4V is adopted to drive the liquid crystal in the figure (points a and B in fig. 4), and the problem of Flicker does not occur, but because the display panel has the influence of the conditions of break-through voltage, insufficient charging, routing delay and the like, the absolute values of the positive and negative voltages are different, for example, the positive voltage is greater than 4V, and the negative voltage is greater than-4V, corresponding luminance is different (points C and D in fig. 4), so that the Flicker phenomenon (Flicker) occurs when the positive and negative voltages are applied. The Flicker picture refers to performing frame inversion with a display pattern, adjusting positive and negative voltages, and setting the voltage when the display picture reaches the least Flicker as the optimal voltage, referring to fig. 5 and 6, in order to adjust to the optimal voltage, for a dot-inverted display panel, two electrodes with different polarities may be covered by an electrode with one polarity, for example, a voltage for a black picture, as shown in fig. 5 and 6, fig. 5 is a schematic diagram of the previous frame picture, fig. 5 is a schematic diagram of a pixel voltage for providing a positive polarity voltage, fig. 6 is a schematic diagram of the next frame picture, and fig. 6 is a schematic diagram of a pixel voltage for providing a negative polarity voltage, so that the positive and negative voltages are provided one by one, and when the display picture reaches the least Flicker, the voltage is the optimal voltage, then the Flicker picture is obtained.

Although the pseudo-double domain is not a Flicker picture when the dots are inverted in the prior art, the phenomenon of flickering is observed when the first pixel unit 101 'and the second pixel unit 102' are seen from the same viewing angle (large viewing angle), which causes the phenomenon of large viewing angle gray scale flickering.

In order to solve the above technical problems, the present invention provides a display panel and a display device. With respect to the embodiments of the display panel provided by the present invention, the following will be described in detail.

With reference to fig. 7 and 8, fig. 7 is a schematic plan structure diagram of a display panel provided by the present invention, fig. 8 is a cross-sectional view taken along the direction m-m' in fig. 7, a display panel 100 in fig. 8 includes a color filter substrate 1 and an array substrate 2 which are oppositely disposed, and a liquid crystal layer 3 interposed 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 substrate 5, the substrate 5 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 intersect to define a plurality of pixel units 10, the array substrate 2 further includes a first electrode 8 and a second electrode 9 disposed on the substrate 5, and the first electrode 8 is located on a side of the second electrode 9 close to the liquid crystal layer 3.

The display panel 100 of the present invention is a dot-inverted display panel. It is understood that the display panel in the present invention is a dot-inverted display panel. In the same frame, each pixel unit (dot) and its adjacent pixel unit (dot) in the row direction and the column direction keep opposite polarity, which is called dot inversion.

In fig. 7, 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 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 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 the row direction X and the column direction Y.

It should be noted that the degree of the included angle between each of the first slot 103 and the second slot 104 and the first signal line 6 is not specifically limited in the present invention, as long as the included angle is not equal to 0 °, and optionally, the included angle may be an acute angle or an obtuse angle.

Of course, a driving circuit including a thin film transistor (not shown) is further provided on the array substrate 2, and an insulating layer is further provided between the first electrode 8 and the second electrode 9.

Fig. 7 only shows that the first electrodes 8 of two adjacent first pixel units 101 have first slits 103 extending along the first direction U, the first electrodes 8 of two adjacent second pixel units 102 have second slits 104 extending along the second direction V, and 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, but of course, four or more even first pixel units 101 are adjacent to four or more even second pixel units 102 in the row direction X and the column direction Y, which is not limited in particular.

Referring to fig. 7, in conjunction with fig. 2, 3, 4 and 9, fig. 9 is a schematic view of the display panel of fig. 7 viewed from a large viewing angle; fig. 9 only shows a schematic diagram that a large viewing angle is to view the display panel along the first direction U, when the display panel is viewed along the first direction U, the first pixel unit 101 having the first slit 103 arranged along the first direction U looks bright (illustrated by black filling in fig. 9), the second pixel unit 102 having the second slit arranged along the second direction V (covered in fig. 9) looks dark (illustrated by black filling in fig. 9), even adjacent first pixel units 101 are even pixel units with opposite polarities, and it can be known from the above-mentioned principles of Flicker picture that the brightness difference between the positive and negative polarities can be compensated with each other, for example, the optimal voltages are +5V and-4V, and in this frame picture, the brightness of two adjacent first pixel units 101 is +5V and-4V respectively, and the brightness of two first pixel units 101 is neutralized, and similarly, in the next frame picture, the brightness difference between the brightness of two adjacent first pixel units 101 is also compensated with-5V and-4V respectively, that the Flicker problem can be improved.

Similarly, when the display panel is viewed along the second direction V, the second pixel unit 102 having the second slits 104 arranged along the second direction V looks brighter, the first pixel unit 101 having the first slits 103 arranged along the first direction U looks darker, and the even number of adjacent second pixel units 101 are even number pixel units with opposite polarities, and it can be known from the above-mentioned principles of Flicker picture that the brightness difference of the positive and negative polarities can be mutually compensated, for example, the optimal voltage is +5V and-4V, and in this frame picture, the brightness of the two adjacent second pixel units 102 is respectively the neutralization of the brightness under +5V and-4V, and when in the next frame picture, the brightness of the two adjacent second pixel units 102 is respectively the neutralization of the brightness under-5V and +4V, that is, the brightness difference of the positive and negative polarities can be mutually compensated, so as to improve the problem of Flicker caused by large viewing angle of dot inversion.

Referring to fig. 10, fig. 10 is a schematic plan view of another display panel provided by the present invention, in which the pixel unit 10 in fig. 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 are mutually crossed, the first slit 103 and the second slit 104 respectively form an included angle with the first signal line 6, the included angle is not equal to 0 °, and the four first pixel units 101 are adjacent to the four second pixel units 102 in both the row direction X and the column direction Y.

Referring to fig. 10, in conjunction with fig. 2, 3 and 4, when the display panel is viewed along the first direction U, the first pixel unit 101 having the first slit 103 disposed along the first direction U appears bright, and the four adjacent first pixel units 101 are four pixel units with opposite polarities, it can be known from the above-mentioned principles of Flicker picture that the brightness difference of positive and negative polarities can be mutually compensated after obtaining the optimal voltage, for example, the optimal voltage is +5V and-4V, and in this frame picture, the brightness of the four adjacent first pixel units 101 is respectively +5V, -4V, +5V and-4V, and of course the brightness corresponding to the brightness when the voltage is +5V is greater than the brightness corresponding to the voltage is-4V, and the brightness of the four first pixel units 101 is neutralized, and similarly, when in the next frame picture, the brightness of the four adjacent first pixel units 101 is respectively-5V, +4V, +5V, -4V and +4V, and the brightness difference of positive and negative polarities is also neutralized, that is the brightness difference of positive and the brightness of the adjacent four first pixel units 101 is mutually reversed, so that the Flicker problem can be improved. (the principle can refer to fig. 7 and 9); similarly, when the display panel is viewed along the second direction V, the second pixel unit 102 having the second slit 104 disposed along the second direction V appears bright, and the four adjacent second pixel units 101 are four pixel units with opposite polarities, it can be known from the above-mentioned principle of Flicker picture that the brightness differences of positive and negative polarities can be mutually compensated after obtaining the optimal voltage, for example, the optimal voltage is +5V and-4V, in this frame, the brightness of the adjacent four second pixel units 102 is respectively the brightness neutralization under +5V, -4V, +5V and-4V, and in the next frame, the brightness differences of positive and negative polarities can be mutually compensated, so as to improve the problem of Flicker occurring in large viewing angle due to dot inversion.

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

in the display panel, the first electrodes 8 in even number of adjacent first pixel units 101 have first slits 103 extending along a first direction U, the first electrodes 8 in even number of adjacent second pixel units 102 have second slits 104 extending along a second direction V, the even number of first pixel units 101 are adjacent to the even number of second pixel units 102 in a row direction X and a column direction Y, brightness of the even number of first pixel units 101 (or the even number of second pixel units 102) is neutralized after positive and negative voltages are applied, namely brightness differences of positive and negative polarities can be compensated with each other, the problem of flicker caused by large viewing angles of dot inversion is solved, and the design of a pseudo-transverse domain has the advantages of good viewing angle, slight rubberlemura (fine grain) and the like.

With continued reference to fig. 7 and 10, the first pixel unit 101 in fig. 7 and 10 is arranged along the direction in which the first signal line 6 extends. First electrodes 8 in even-numbered adjacent first pixel units 101 in a row direction X are provided with first slits 103 extending along a first direction U, first electrodes 8 in even-numbered adjacent second pixel units 102 are provided with second slits 104 extending along a second direction V, the even-numbered first pixel units 101 are adjacent to the even-numbered second pixel units 102 in the row direction X and a column direction Y, brightness of the even-numbered first pixel units 101 (or the even-numbered second pixel units 102) in the row direction is neutralized after positive and negative voltages are applied, namely brightness differences of positive and negative polarities can be compensated with each other, and the problem of flicker caused by large visual angles of dot inversion is solved. .

Referring to fig. 11, fig. 11 is a schematic plan view of another display panel provided by the present invention. The first pixel unit 101 is arranged along a direction in which the second signal line 7 extends. The first electrodes 8 in even number of adjacent first pixel units 101 have first slits 103 extending along the first direction U, the first electrodes 8 in even number of adjacent second pixel units 102 have second slits 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 the row direction X and the column direction Y, the first pixel units 101 are arranged along the direction in which the second signal lines 7 extend, 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 positive and negative voltages are applied, that is, the brightness differences of positive and negative polarities can be compensated with each other, and the problem of flicker occurring in large viewing angles due to dot inversion is solved.

With continued reference to fig. 7, 10, and 11, the first slot 103 and the second slot 104 are axisymmetrical along the first signal line 6, or the first slot 103 and the second slot 104 are axisymmetrical along the second signal line 7.

It can be understood that the first slit 103 or the second slit 104 is provided on the first electrode 8, that is, the first electrode 8 has different domain directions, the first slit 103 or the second slit 104 can induce liquid crystal molecules in different domains to fall to different directions to achieve the effect of improving color shift, and the first slit 103 and the second slit 104 are axially symmetric along the first signal line 6, or the first slit 103 and the second slit 104 are axially symmetric along the second signal line 7, which can achieve the effect of improving the fine rubbing texture. Meanwhile, the first slit 103 and the second slit 104 are axisymmetric to induce the liquid crystal molecules to be inverted in two directions, so that when the display panel is viewed at a large viewing angle, the display content can be well viewed no matter the display panel is viewed from the first direction U or the second direction V.

With continued reference to fig. 7 and 11, the length of the first slot 103 in the first direction U is a and the length of the second slot 104 in the second direction V is b, where a = b.

It can be understood that the first slit 103 or the second slit 104 disposed on the first electrode 8 can induce the liquid crystal molecules in different domains to fall to different directions to improve the color shift, 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 achieve the effect of slight friction texture.

With continued reference to fig. 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 substrate 5.

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

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

In some alternative embodiments, with reference to fig. 8, the gray scale voltage is applied to the pixel electrode to make the display panel display a gray image, and since the gray scale voltage changes greatly when the voltage changes slightly, the flickering image is easy to see, so the voltage can be adjusted to the voltage at which the image flickers least.

With continued reference to fig. 5 and 6, in order to adjust to the optimal voltage, for the dot-inverted display panel, two electrodes with different polarities may be covered by one electrode, and the voltage for the black frame is selected, as shown in fig. 5 and 6, fig. 5 is a schematic diagram of the previous frame, fig. 5 is a schematic diagram of the pixel voltage for providing the positive polarity voltage, fig. 6 is a schematic diagram of the next frame, and fig. 6 is a schematic diagram of the pixel voltage for providing the negative polarity voltage, so that the positive and negative voltages are provided one by one, and when the display frame reaches the voltage at the time of the least Flicker, the voltage is the optimal voltage, which is the Flicker frame.

It can be understood that when the voltage applied to the pixel electrodes is a gray scale voltage, a Flicker-like picture is formed, and after the Flicker-like picture is formed, with reference to fig. 7 and 11, the first electrode 8 in the 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 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 the row direction X and the column direction Y, and the luminance 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 luminance difference of the positive and negative polarities can be compensated with each other, so as to improve the problem of Flicker caused by dot inversion and large viewing angle.

Referring to fig. 12, fig. 12 is a schematic plan view of another display panel provided in the present invention. In fig. 12, two first signal lines 6 are disposed between two adjacent rows of pixel units 10, two pixel units 10 are disposed 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 respectively connected to different first signal lines 6.

It is to be understood that the driving transistor is not shown in fig. 12.

The structure of fig. 12 is a double-gate structure, and on the basis of fig. 7, the present embodiment can also achieve the purpose of improving the phenomenon of flicker caused by dot inversion, and the principle is not described again. Compared with fig. 12 and fig. 7, in this embodiment, two adjacent pixel units 10 share one second signal line 7, the first signal lines 6 scan line by line in the display process of the display panel, and the second data lines 7 respectively transmit data signals, which can be understood that compared with the structure in fig. 7, the number of the second signal lines 7 in this embodiment is reduced, and the manufacturing cost is reduced.

Based on the same principle of the invention, the invention further provides a display device, which includes the display panel 100 provided by the invention and a backlight module (not shown in the figure) disposed opposite to the display panel 100. Referring to fig. 13, fig. 13 is a schematic plan view of a display device according to the present invention, and a display device 200 of the present embodiment includes the display panel 100 according to any one of the embodiments. Fig. 13 illustrates the display device 200 by taking a mobile phone as an example, and it is understood that the display device 200 provided in the embodiment of the present invention may be other display devices having a display function, such as a liquid crystal panel, electronic paper, a television, an electronic watch, and an in-vehicle display device, and the present invention is not limited thereto. 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, and specific reference may be made to the specific description of the display panel in each of the above embodiments, which is not repeated herein.

As can be seen from the above embodiments, the display panel and the display device provided by the present invention at least achieve the following beneficial effects:

according to the display panel, the first electrodes in the even number of adjacent first pixel units are provided with the first slits extending along the first direction, the first electrodes in the even number of adjacent second pixel units are provided with the second slits extending along the second direction, the even number of first pixel units are adjacent to the even number of second pixel units in the row direction X and the column direction Y, the brightness of the even number of first pixel units (or the brightness of the even number of second pixel units is neutralized after positive and negative voltages are applied, namely, brightness differences of positive and negative polarities can be compensated mutually, and the problem of flicker caused by large visual angle of dot inversion is solved.

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A display panel is characterized by comprising a color film substrate, an array substrate and a liquid crystal layer, wherein the color film substrate and the array substrate are arranged oppositely, the liquid crystal layer is clamped between the color film substrate and the array substrate, liquid crystal molecules are contained in the liquid crystal layer, the array substrate comprises a substrate, the substrate comprises a plurality of first signal lines which are arranged along a column direction and extend along a row direction and a plurality of second signal lines which are arranged along the row direction and extend along the column direction, the plurality of first signal lines and the plurality of second signal lines are crossed to define a plurality of pixel units, the array substrate further comprises a first electrode and a second electrode which are arranged on the substrate, the first electrode is positioned on one side, close to the liquid crystal layer, of the second electrode,

the pixel units comprise first pixel units and second pixel units, the first electrodes in even number of adjacent first pixel units are provided with first slits extending along a first direction, the first electrodes in even number of adjacent second pixel units are provided with second slits extending along a second direction, the first direction and the second direction are mutually crossed, the first slits and the second slits respectively form included angles with the first signal lines, the included angles are not equal to 0 degrees, even number of first pixel units are adjacent to even number of second pixel units in the row direction and the column direction,

the first pixel units are arranged along a direction in which the first signal lines extend.

2. The display panel of claim 1, wherein the first pixel cell and the second pixel cell are cross-domains.

3. The display panel according to claim 1, wherein two adjacent pixel units share one second signal line.

4. The display panel according to claim 1, wherein the first slit and the second slit are axisymmetric along the first signal line, or wherein the first slit and the second slit are axisymmetric along the second signal line.

5. The display panel according to claim 1, wherein the first slit has a length in the first direction of a, and the second slit has a length in the second direction of b, where a = b.

6. The display panel according to claim 1, wherein 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 substrate.

7. The display panel according to claim 1, wherein 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 substrate.

8. The display panel according to claim 6 or 7, wherein a gray scale voltage is applied to the pixel electrode to make the display panel display a gray picture.

9. The display panel according to claim 1, wherein two of the first signal lines are provided between two adjacent rows of the pixel units, two of the pixel units are provided between two adjacent second signal lines, and for the same row of the pixel units, two of the pixel units connected to the same second signal line are respectively connected to different first signal lines.

10. A display device, comprising the display panel of any one of claims 1 to 9, and a backlight module disposed opposite to the display panel.