CN116643432A - Display panel, display module and display device - Google Patents

Abstract

This application relates to a display panel, a display module, and a display device. The display panel includes a color filter substrate, an array substrate, a liquid crystal layer, a support assembly, and a piezoelectric switch. The liquid crystal layer is arranged between the color filter substrate and the array substrate, and the support assembly It includes spacers arranged in an array, the spacers have opposite first end faces and second end faces in the direction perpendicular to the array substrate, and the spacers are arranged on the side of the color filter substrate close to the liquid crystal layer through the first end faces And located in the liquid crystal layer, the piezoelectric switch is arranged between the spacer and the array substrate, the piezoelectric switch includes a piezoelectric layer, a first electrode and a second electrode, and the orthographic projection of the second end surface in a direction perpendicular to the array substrate covers At least part of the piezoelectric layer, the piezoelectric layer can conduct the first electrode and the second electrode to form a driving electric field. This solution can directly adjust the angle of the liquid crystal molecules when pressed, and improve the display effect.

Description

Display panel, display module and display device

technical field

The present application relates to the field of display technology, in particular to a display panel, a display module and a display device.

Background technique

At present, the screen size of products is getting larger and larger, and the backlight module supports the display panel, which leads to abnormal display after being pressed. The medium and large-sized screens tend to deteriorate after being pressed, which affects the visual effect of the product and makes the display uniformity relatively low. Difference.

This is mainly because the overall area of the display panel increases after the size of the display panel increases, so that the backlight module does not have sufficient support for the display panel. Deformation with the array substrate causes the angle of the liquid crystal molecules at the pressed place to change, which is different from other normal liquid crystal molecules, resulting in abnormal display at the pressed place.

In the prior art, display abnormalities are mainly improved by thinning the glass and reducing the density of the overall spacer, but thinning the glass will increase the cost, and changes to the design of the spacer will affect the performance of the display panel.

Contents of the invention

Embodiments of the present application provide a display panel, a display module, and a display device, which can directly adjust the angle of liquid crystal molecules when pressed, without affecting the performance of the display panel while improving the display.

On the one hand, according to an embodiment of the present application, a display panel is proposed, including a color filter substrate, an array substrate, a liquid crystal layer, a support assembly, and a piezoelectric switch. The liquid crystal layer is disposed between the color filter substrate and the array substrate, and the support assembly includes a Spacers arranged in an array, the spacers have opposite first end faces and second end faces in a direction perpendicular to the array substrate, and the spacers are arranged on the side of the color filter substrate close to the liquid crystal layer through the first end faces and located on the In the liquid crystal layer, the piezoelectric switch is arranged between the spacer and the array substrate, the piezoelectric switch includes a piezoelectric layer, a first electrode and a second electrode, and the orthographic projection of the second end surface in a direction perpendicular to the array substrate covers at least part of the A piezoelectric layer, the piezoelectric layer can conduct the first electrode and the second electrode to form a driving electric field; wherein, the display panel has a first state and a second state, and in the first state, there is a gap between the second end surface and the array substrate; In the second state, the piezoelectric layer is pressed against the second end face and the array substrate to connect the first electrode and the second electrode.

In another aspect, an embodiment of the present application provides a display module, including a backlight module and the above-mentioned display panel, the backlight module is arranged on the side of the array substrate away from the liquid crystal layer, and the backlight module passes through the edge of the display panel area supports the display panel.

In another aspect, an embodiment of the present application provides a display device, including the above-mentioned display module.

The embodiments of the present application provide a display panel, a display module, and a display device. A piezoelectric switch is provided between the array substrate and the spacer on the color filter substrate, and the piezoelectric switch is controlled by the spacer and the array substrate. After the piezoelectric layer is squeezed, there is a voltage difference between the two electrodes, and then the principle of forming a current, so that the piezoelectric layer conducts the first electrode and the second electrode on both sides, thereby forming an electric field at the piezoelectric switch. Under the action of the electric field, the tilted liquid crystal molecules are rotated to prevent the deflection of the liquid crystal molecules caused by the spacer after being pressed, which will have a negative impact on the display effect. Through the above settings, it can be ensured that when the display panel is pressed, the pressed place can be synchronized A driving electric field is formed to adjust the angle of liquid crystal molecules tilted by pressing, so that the display effect remains normal. On the basis of improving the display effect, it will not affect other performances of the display panel, and has better usability.

Description of drawings

The features, advantages, and technical effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application;

FIG. 2 is a partial schematic diagram of a display panel in a first state according to an embodiment of the present application;

FIG. 3 is a partial schematic diagram of another display panel in a first state according to an embodiment of the present application;

FIG. 4 is a partial schematic diagram of a display panel in a second state according to an embodiment of the present application;

FIG. 5 is a partial schematic diagram of another display panel in a first state according to an embodiment of the present application;

Fig. 6 is a partial schematic diagram of another display panel in the first state according to the embodiment of the present application;

FIG. 7 is a partial schematic diagram of another display panel in the second state according to the embodiment of the present application;

Fig. 8 is a partial schematic diagram of another display panel in the first state according to the embodiment of the present application;

FIG. 9 is a partial schematic diagram of another display panel in the first state according to the embodiment of the present application;

FIG. 10 is a schematic plan view of a display panel according to an embodiment of the present application.

Reference signs:

100-display panel; M-first state; N-second state; AA-body area; NA-edge area;

10-color film substrate; 20-array substrate; 30-liquid crystal layer;

40-spacer; 41-first end face; 42-second end face;

50-piezoelectric switch; 51-first electrode; 52-second electrode; 53-piezoelectric layer.

In the figures, the same parts are given the same reference numerals. The figures are not drawn to scale.

Detailed ways

Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application. In the drawings and the following description, at least some well-known structures and techniques have not been shown in order to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may have been exaggerated. Furthermore, the features, structures, or characteristics described hereinafter may be combined in any suitable manner in one or more embodiments.

The orientation words appearing in the following description are the directions shown in the figure, and are not intended to limit the specific structures of the display panel, display module and display device of the present application. In the description of this application, it should also be noted that unless otherwise specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or Connected integrally; either directly or indirectly. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In order to better understand the present application, the display panel, the display module and the display device of the embodiment of the present application will be described in detail below with reference to FIG. 1 to FIG. 10 .

Please refer to FIG. 1 to FIG. 4 , the embodiment of the present application proposes a display panel 100 , including a color filter substrate 10 , an array substrate 20 , a liquid crystal layer 30 , a support component and a piezoelectric switch 50 , and the liquid crystal layer 30 is disposed on the color filter substrate. 10 and the array substrate 20, the support assembly includes spacers 40 arranged in an array, the spacers 40 have opposite first end faces 41 and second end faces 42 in a direction perpendicular to the array substrate 20, and the spacers 40 is disposed on the side of the color filter substrate 10 close to the liquid crystal layer 30 through the first end surface 41 and is located in the liquid crystal layer 30. The piezoelectric switch 50 is disposed between the spacer 40 and the array substrate 20. The piezoelectric switch 50 includes a piezoelectric layer 53, the first electrode 51 and the second electrode 52, the orthographic projection of the second end surface 42 in the direction perpendicular to the array substrate 20 covers at least part of the piezoelectric layer 53, and the piezoelectric layer 53 can conduct the first electrode 51 and the second The electrode 52 forms a driving electric field; wherein, the display panel 100 has a first state M and a second state N, in the first state M, there is a gap between the second end surface 42 and the array substrate 20; in the second state N, the second end surface 42 and the array substrate 20 press the piezoelectric layer 53 to connect the first electrode 51 and the second electrode 52 .

In the display panel 100 , the support assembly has several spacers 40 , and the spacers 40 are disposed on the color filter substrate 10 and located in the liquid crystal layer 30 , thereby forming a support between the color filter substrate 10 and the array substrate 20 .

Due to the existence of the spacer 40 in the liquid crystal layer 30, when the display panel 100 is pressed, the color filter substrate 10 will drive the above spacer 40 to move in the liquid crystal layer 30, forming stress on the liquid crystal molecules around the spacer 40. As a result, the liquid crystal molecules are disordered, and the inclination of the liquid crystal changes, resulting in a difference in phase difference between the liquid crystal around the spacer 40 and other unstressed regions. Especially in a black screen, slight angle differences lead to excessive differences in transmittance, resulting in a blurred display.

The spacer 40 itself has a certain thickness, and the spacer 40 has opposite first end faces 41 and second end faces 42 in its own thickness direction. The spacer 40 is connected to the color filter substrate 10 through the first end face 41 and the second The end surface 42 is located in the liquid crystal layer 30 . In this embodiment, the influence of the spacer 40 on the display is improved by disposing the piezoelectric switch 50 between the spacer 40 and the array substrate 20 .

The piezoelectric switch 50 specifically includes a first electrode 51, a second electrode 52 and a piezoelectric layer 53, wherein the piezoelectric layer 53 is made of a piezoelectric material, that is, when the piezoelectric layer 53 is under pressure, it can convert the pressure into electrical energy by itself. , so as to conduct the first electrode 51 and the second electrode 52 on both sides. Optionally, one of the first electrode 51 and the second electrode 52 is a positive pole, and the other is a negative pole. A driving electric field can be formed to drive and deflect the liquid crystal molecules so that the liquid crystal molecules are reset.

Considering that the spacer 40 and the array substrate 20 specifically squeeze the piezoelectric layer 53 in the piezoelectric switch 50 to form a conduction current, it is necessary to meet the requirement that the second end surface 42 of the spacer 40 be perpendicular to the array substrate. The orthographic projection in the direction 20 covers at least part of the piezoelectric layer 53 , so that the spacer 40 can accurately squeeze the piezoelectric layer 53 and prevent the piezoelectric layer 53 from being unable to bear force.

Specifically, when the piezoelectric switch 50 is provided, the display panel 100 has a first state M and a second state N, and the first state M is the state where the display panel 100 is not pressed, so the second end surface of the corresponding spacer 40 There is a gap between 42 and the array substrate 20, that is, the piezoelectric switch 50 between the spacer 40 and the array substrate 20 does not form a squeeze, no current passes through the piezoelectric layer 53, and the piezoelectric switch 50 is turned off. state.

When the display panel 100 is in the second state N, the display panel 100 is pressed by the outside, driving the spacer 40 to move downward in the liquid crystal layer 30, the angles of the surrounding liquid crystal molecules are disordered, and at the same time, the spacer 40 forms contact with the piezoelectric layer 53 And co-press the piezoelectric layer 53 with the array substrate 20, a current is formed in the piezoelectric layer 53 and the piezoelectric switch 50 is turned on, and the surrounding driving electric field can drive the newly disordered liquid crystal molecules to rotate and reset them, ensuring that the liquid crystal molecules in the liquid crystal layer 30 The angles of the liquid crystal molecules are consistent everywhere, which avoids local display abnormalities.

In the display panel 100 provided in the embodiment of the present application, a piezoelectric switch 50 is provided between the array substrate 20 and the spacer 40 on the color filter substrate 10 , and the piezoelectric switch 50 is controlled by the spacer 40 and the array substrate 20 . The piezoelectric layer 53 is squeezed to form a current, so that the piezoelectric layer 53 conducts the first electrode 51 and the second electrode 52 on both sides, so that an electric field is formed at the piezoelectric switch 50, and the electric field around the spacer 40 The tilted liquid crystal molecule angle is automatically adjusted to prevent the deflection of the liquid crystal molecules caused by the spacer 40 after being pressed, which will have a negative impact on the display effect. Through the above settings, it can be ensured that when the display panel 100 is pressed, the pressed part can be formed synchronously. The electric field is driven to adjust the angle of liquid crystal molecules tilted by pressing, so that the display effect remains normal, and other performances of the display panel 100 are not affected on the basis of improving the display effect, so that it has better usability.

As an optional embodiment, the orthographic projection of the second end surface 42 in a direction perpendicular to the array substrate 20 covers the piezoelectric layer 53 .

In the display panel 100 provided by the embodiment of the present application, a piezoelectric switch 50 can be provided corresponding to each spacer 40, wherein the second end surface 42 of the spacer 40 can completely cover the piezoelectric layer 53, thereby ensuring the second The spacer 40 in the state N can be fully in contact with the piezoelectric layer 53 and co-extruded with the array substrate 20, which has higher sensitivity, prevents the inability to form a driving electric field caused by crimping dislocation, and makes the adjustment process more reliable. .

As an optional embodiment, the piezoelectric layer 53, the first electrode 51 and the second electrode 52 in the piezoelectric switch 50 are integrally formed, and the first electrode 51 and the second electrode 52 are arranged on opposite sides of the piezoelectric layer 53. On the other hand, in the first state M, the entire piezoelectric switch 50 is connected to one of the array substrate 20 and the spacer 40 .

Optionally, the piezoelectric switch 50 can adopt an integrated structure, that is, the piezoelectric layer 53, the first electrode 51 and the second electrode 52 always move as a whole, and the first electrode 51 and the second electrode 52 are located on both sides of the piezoelectric layer 53, so that the first electrode 51 and the second electrode 52 can be turned on at any time to form an electric field.

In the first state M, the piezoelectric switch 50 can be disposed on the spacer 40 or the array substrate 20 as a whole. When the piezoelectric switch 50 is disposed on the spacer 40 as a whole, it is specifically disposed on the second On the two end surfaces 42, in the second state N, the spacer 40 moved after being pressed will drive the piezoelectric switch 50 to move synchronously as a whole until it touches the array substrate 20, and cooperates with the array substrate 20 to form extrusion, so the spacer The pressing force formed by the spacer 40 and the array substrate 20 acts on the piezoelectric layer 53 , thereby instantly forming a driving electric field to adjust the angle of the liquid crystal.

When the piezoelectric switch 50 is integrally arranged on the array substrate 20, the piezoelectric switch 50 must be arranged correspondingly to the spacer 40, specifically, the piezoelectric layer 53 should be arranged correspondingly to the second end surface 42. In the second state N, After being pressed, only the spacer 40 moves downward until the second end surface 42 directly contacts the piezoelectric switch 50 integrally and is pressed with the array substrate 20 to turn on the piezoelectric switch 50 to form a driving electric field.

In the display panel 100 provided in the embodiment of the present application, the piezoelectric switch 50 is integrally formed so that the piezoelectric switch 50 is an integral structure, which is more conducive to the arrangement and control of the piezoelectric switch 50, and realizes the spacer 40 and The array substrate 20 has a better squeezing effect on the piezoelectric layer 53 , so as to quickly form a driving electric field and complete the liquid crystal adjustment process.

As an optional embodiment, please refer to FIG. 2 to FIG. 4 , the piezoelectric switch 50 is connected to the array substrate 20 as a whole, and the first electrode 51 and the second electrode 52 are arranged on the piezoelectric layer 53 in its own length direction. Both ends, in the first state M, the piezoelectric switch 50 is attached to the array substrate 20 and forms a gap with the second end surface 42; in the second state N, the spacer 40 is directly in contact with the piezoelectric layer 53 and is in contact with the array substrate 20 form an extrusion.

Taking the piezoelectric switch 50 disposed on the array substrate 20 as an example for illustration, optionally, the first electrode 51 and the second electrode 52 may be disposed at both ends of the piezoelectric layer 53 in its own length direction, and the piezoelectric switch 50 A lateral layered structure is formed as a whole, so the first electrode 51 , the second electrode 52 and the piezoelectric layer 53 can be attached to the array substrate 20 respectively.

In the first state M, since the display panel 100 is not pressed, the spacer 40 does not move, so there is a gap between the spacer 40 and the piezoelectric switch 50; in the second state N, the spacer 40 is pressed down. The piezoelectric switch 50 is turned on through the second end surface 42 directly contacting and pressing the piezoelectric layer 53 .

When the above-mentioned transverse piezoelectric switch 50 is arranged on the spacer 40, it can be connected to the second end face 42 only through the piezoelectric layer 53, and the first electrode 51 and the second electrode 52 are on the two sides of the piezoelectric layer 53. The side is suspended, and in the second state N, the piezoelectric switch 50 gradually moves toward the array substrate 20 along with the spacer 40 until the piezoelectric switch 50 is pressed against the array substrate 20. At this time, the force point is at the piezoelectric layer 53 , thereby turning on the piezoelectric switch 50 .

The display panel 100 provided in the embodiment of the present application provides a specific structure and installation position of the piezoelectric switch 50. The horizontal piezoelectric switch 50 structure is used to facilitate the direct contact between the spacer 40 and the piezoelectric layer 53. The extrusion force is directly formed on the piezoelectric layer 53 to realize the rapid formation of the driving electric field, which has better response ability and quickly completes the liquid crystal adjustment process.

As an optional embodiment, please refer to FIG. 5 to FIG. 7, the piezoelectric switch 50 is integrally connected to the array substrate 20, and the first electrode 51 and the second electrode 52 are arranged on the piezoelectric layer 53 in its own thickness direction. Both ends, in the first state M, the piezoelectric switch 50 is connected to the array substrate 20 through the first electrode 51 and the second electrode 52 forms a gap with the second end surface 42; in the second state N, the spacer 40 and the second electrode 52 contacts and presses the piezoelectric layer 53 .

Taking the piezoelectric switch 50 disposed on the array substrate 20 as an example for illustration, optionally, the first electrode 51 and the second electrode 52 may be disposed at both ends of the piezoelectric layer 53 in its own thickness direction, and the piezoelectric switch 50 A vertical block structure is formed as a whole, so the piezoelectric switch 50 can be attached to the array substrate 20 through the first electrode 51 or the second electrode 52 .

In the first state M, since the display panel 100 is not pressed, the spacer 40 does not move, so there is a gap between the spacer 40 and the piezoelectric switch 50, specifically, a gap is formed between the second electrode 52; In the second state N, the spacer 40 moves down, directly contacts and presses the second electrode 52 through the second end surface 42 , forms an indirect press on the middle piezoelectric layer 53 , and turns on the piezoelectric switch 50 .

When adopting the above-mentioned vertical piezoelectric switch 50 structure to be arranged on the spacer 40, at this time, the first electrode 51 or the second electrode 52 can also be attached and connected to the second end surface 42, and the piezoelectric layer 53 is indirectly connected to the second end surface. 42 is in contact with and located between the first electrode 51 and the second electrode 52. In the second state N, the piezoelectric switch 50 gradually moves toward the array substrate 20 along with the spacer 40 until the first electrode 51 or the second electrode 52 After being in contact with the array substrate 20, a bonded extrusion is formed. At this time, the force point is at the first electrode 51 or the second electrode 52, and the formed extrusion force can be transmitted to the intermediate pressure point through the first electrode 51 or the second electrode 52. On the electrical layer 53 , the piezoelectric switch 50 is turned on.

The display panel 100 provided in the embodiment of the present application provides a specific structure and installation position of the piezoelectric switch 50, and adopts a vertical piezoelectric switch 50 structure so that the spacer 40 is closer to the piezoelectric switch 50, thereby It is easier to contact with the piezoelectric switch 50 on the array substrate 20 to form a squeezing force, and at the same time, it can form a vertical driving electric field to adjust the position of the liquid crystal molecules in the vertical direction, has a more comprehensive adjustment capability, and can also quickly complete the liquid crystal adjustment process .

As an optional embodiment, please refer to FIG. 8 and FIG. 9, the piezoelectric switch 50 is a split structure, in the first state M, a part of the piezoelectric layer 53, the first electrode 51 and the second electrode 52 are set on the array substrate 20 and another part is disposed on the second end surface 42 .

In this embodiment, the first electrode 51, the second electrode 52 and the piezoelectric layer 53 in the piezoelectric switch 50 are independent structures respectively. Optionally, each of the three adopts a block or layered structure, especially in the In the first state M, the first electrode 51, the second electrode 52 and the piezoelectric layer 53 are separated from each other, and only in the second state N can they be spliced together to form the piezoelectric switch 50 as a whole and exert extrusion force on the piezoelectric layer 53 , the piezoelectric switch 50 is turned on synchronously.

In the first state M, no matter how the positions of the first electrode 51, the second electrode 52 and the piezoelectric layer 53 are set, it needs to be satisfied that the piezoelectric layer 53 is disposed on the second end surface 42 of the spacer 40, or located on the positive side. On the array substrate 20 of the second end surface 42 , it can be ensured that in the second state N, the spacer 40 can press the piezoelectric layer 53 of the piezoelectric switch 50 .

At the same time, the first electrode 51 and the second electrode 52 can be arranged opposite to the piezoelectric layer 53 together, or the first electrode 51 or the second electrode 52 can be connected to the piezoelectric layer 53 and the other is arranged oppositely. In the second state N, the first electrode 51 , the second electrode 52 and the piezoelectric layer 53 can be spliced together to form the piezoelectric switch 50 , and finally the first electrode 51 and the second electrode 52 are connected through the piezoelectric layer 53 .

A display panel 100 provided in the embodiment of the present application provides a split structure and installation position of the piezoelectric switch 50, by combining the first electrode 51, the second electrode 52 and the piezoelectric layer 53 in the piezoelectric switch 50 They are set as independent parts, and in the second state N, they can be spliced together and formed to conduct electrodes, which increases the flexibility and diversity of the piezoelectric switch 50 structural setting, and realizes the conduction of the piezoelectric switch 50 more flexibly.

As an optional embodiment, please refer to FIG. 8 , in the first state M, the first electrode 51 and the second electrode 52 are arranged on the array substrate 20 at intervals, the piezoelectric layer 53 is arranged on the second end surface 42, and the piezoelectric layer 53 A gap is formed between the layer 53 and the array substrate 20; in the second state N, the spacer 40 drives the piezoelectric layer 53 to be inserted between the first electrode 51 and the second electrode 52 and presses the piezoelectric layer with the array substrate 20 53.

Specifically, the piezoelectric layer 53 can be disposed separately from the first electrode 51 and the second electrode 52, that is, the piezoelectric layer 53 is disposed on the spacer 40, and the first electrode 51 and the second electrode 52 are jointly disposed on the There is no gap on the array substrate 20 , and it is necessary to ensure that the piezoelectric layer 53 can just be accommodated between the first electrode 51 and the second electrode 52 .

In the first state M, the first electrode 51, the second electrode 52, and the piezoelectric layer 53 form a gap among each other. When switching to the second state N, the spacer 40 drives the piezoelectric layer due to external pressure. The layer 53 is close to the array substrate 20 until the piezoelectric layer 53 is co-extruded with the array substrate 20. At the same time, the piezoelectric layer 53 is just inserted between the first electrode 51 and the second electrode 52 on the array substrate 20 to form a current back conductor. Through the first electrode 51 and the second electrode 52, a driving electric field is finally formed.

A display panel 100 provided in the embodiment of the present application provides a split structure and installation position of the piezoelectric switch 50, by combining the first electrode 51, the second electrode 52 and the piezoelectric layer 53 in the piezoelectric switch 50 It is set as independent parts, and in the second state N, they can be spliced together to form and conduct the electrodes, which increases the flexibility and diversity of the structural setting of the piezoelectric switch 50, and at the same time, in the second state N, a horizontal piezoelectric switch is formed as a whole The 50 structure is beneficial for the direct contact between the spacer 40 and the piezoelectric layer 53 and the direct formation of extrusion force on the piezoelectric layer 53, so as to realize the rapid formation of the driving electric field, better responsiveness, and quick completion of the liquid crystal adjustment process.

As an optional embodiment, please refer to FIG. 9 , in the first state M, the piezoelectric layer 53 is connected to the array substrate 20 through the first electrode 51 on one side in the thickness direction of the piezoelectric layer 53 and the second electrode 52 on the other side is set On the second end surface 42 , a gap is formed between the piezoelectric layer 53 and the second electrode 52 ; in the second state N, the spacer 40 presses the piezoelectric layer 53 through the second electrode 52 .

In this solution, the piezoelectric layer 53 is connected to the array substrate 20 through the first electrode 51, and is separately provided from the second electrode 52. Similarly, the piezoelectric layer 53 can also be connected to the array substrate 20 through the second electrode 52. And it is set separately from the first electrode 51 .

In the first state M, the piezoelectric layer 53 is disposed on the array substrate 20 through the first electrode 51 and forms a gap with the second electrode 52 on the spacer 40, and the piezoelectric switch 50 is in an off state as a whole and forms a longitudinal arrangement. , in the second state N, due to external pressure, the spacer 40 moves toward the array substrate 20, and drives the second electrode 52 on the second end surface 42 to contact the piezoelectric layer 53 on the array substrate 20, and at the same time The first electrode 51 and the second electrode 52 form a pressing force against the piezoelectric layer 53 in the middle, and the piezoelectric switch 50 forms a longitudinal structure as a whole, so as to conduct the first electrode 51 and the second electrode 52 .

A display panel 100 provided in the embodiment of the present application provides a split structure and installation position of the piezoelectric switch 50, by combining the first electrode 51, the second electrode 52 and the piezoelectric layer 53 in the piezoelectric switch 50 It is set as independent parts, and in the second state N, they can be spliced together to form and conduct electrodes, which increases the flexibility and diversity of the structural configuration of the piezoelectric switch 50, and at the same time, in the second state N, a vertical piezoelectric switch is formed as a whole 50 structure, so that the spacer 40 is closer to the piezoelectric switch 50, so that it is easier to form a pressing force with the first electrode 51 on the array substrate 20, and at the same time, a vertical driving electric field can be formed to adjust the position of the liquid crystal molecules in the vertical direction. , has a more comprehensive adjustment capability, and can also quickly complete the liquid crystal adjustment process.

As an optional embodiment, the support assembly includes more than two spacers 40 , and a piezoelectric switch 50 is disposed between each spacer 40 and the array substrate 20 .

Optionally, several miniature spacers 40 are usually arranged on the color filter substrate 10 in the display panel 100. Since each spacer 40 belongs to a micron-scale structure, when the display panel 100 is pressed with a finger, it can The plurality of spacers 40 are covered so that the plurality of spacers 40 move toward the array substrate 20 , causing the liquid crystal molecules near each spacer 40 to be disordered.

Based on the above considerations, the piezoelectric switch 50 can be configured as a micron-scale structure, and at the same time be arranged in a one-to-one correspondence with each spacer 40 , so that the position of the disordered liquid crystal molecules at any spacer 40 can be adjusted.

In the display panel 100 provided by the embodiment of the present application, by setting the piezoelectric switch 50 corresponding to each spacer 40, the electric field adjustment at the positions of all the spacers 40 in the display panel 100 is covered, ensuring that any The liquid crystal molecules at the position are adjusted to achieve full coverage of the adjustment and more fully guarantee the display effect.

As an optional embodiment, please refer to FIG. 10 , the display panel 100 includes a main body area AA and an edge area NA, the edge area NA is arranged around the main body area AA, and each spacer 40 at the edge area NA is connected to the array substrate 20 More than two piezoelectric switches 50 are arranged between them.

Considering that in the backlight display module, due to the existence of the backlight, a connection is formed between the backlight and the display panel 100, specifically through forming a connection with the edge area NA of the display panel 100, so the edge area NA of the display panel 100 needs Under a certain supporting load, the liquid crystal molecules around the spacers 40 at the edge area NA are more disordered.

In the display panel 100 provided by the embodiment of the present application, a plurality of piezoelectric switches 50 are arranged corresponding to the spacers 40 at the edge area NA, thereby increasing the driving electric field strength at the edge area NA, and can more fully adjust the edge area. The liquid crystal molecules in the area NA can more specifically complete the adjustment process of the liquid crystal molecules, and have better display effect.

A display module provided in an embodiment of the present application includes a backlight module and the display panel 100 as described above. The backlight module is arranged on the side of the array substrate 20 away from the liquid crystal layer 30 . The area NA supports the display panel 100 .

A display device provided by an embodiment of the present application includes the above-mentioned display module.

The embodiments of the present application provide a display panel, a display module, and a display device. A piezoelectric switch is provided between the array substrate and the spacer on the color filter substrate, and the piezoelectric switch is controlled by the spacer and the array substrate. The principle of forming a current after the piezoelectric layer is squeezed makes the piezoelectric layer conduct the first electrode and the second electrode on both sides, thereby forming an electric field at the piezoelectric switch, and adjusting the angle of the inclined liquid crystal molecules around the spacer Automatic adjustment to prevent the liquid crystal molecule deflection caused by the spacer after pressing, which will have a negative impact on the display effect. Through the above settings, it can be ensured that when the display panel is pressed, a driving electric field can be formed synchronously at the pressing place, and the liquid crystal tilted by the pressing The molecular angle is adjusted synchronously, so that the display effect remains normal. On the basis of improving the display effect, it will not affect other performances of the display panel, and has better usability.

While the application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (12)

1. A display panel, characterized in that, comprising: Color filter substrate and array substrate; a liquid crystal layer disposed between the color filter substrate and the array substrate; The support assembly includes spacers arranged in an array, the spacers have opposite first end faces and second end faces in a direction perpendicular to the array substrate, and the spacers pass through the first end faces set on the side of the color filter substrate close to the liquid crystal layer and located in the liquid crystal layer; a piezoelectric switch, disposed between the spacer and the array substrate, the piezoelectric switch includes a piezoelectric layer, a first electrode, and a second electrode, and the second end surface is perpendicular to the array substrate The orthographic projection on the above covers at least part of the piezoelectric layer, and the piezoelectric layer can conduct the first electrode and the second electrode to form a driving electric field; Wherein, the display panel has a first state and a second state, in the first state, there is a gap between the second end surface and the array substrate; in the second state, the second end surface and the array substrate The array substrate presses the piezoelectric layer to conduct the first electrode and the second electrode. 2 . The display panel according to claim 1 , wherein an orthographic projection of the second end surface in a direction perpendicular to the array substrate covers the piezoelectric layer. 3. The display panel according to claim 1, wherein the piezoelectric layer, the first electrode and the second electrode in the piezoelectric switch are integrally formed, and the first electrode and the The second electrode is disposed opposite to the two sides of the piezoelectric layer. In the first state, the entire piezoelectric switch is connected to one of the array substrate and the spacer. 4. The display panel according to claim 3, wherein the whole of the piezoelectric switch is connected to the array substrate, and the first electrode and the second electrode are arranged on the piezoelectric layer itself Both ends in the length direction, in the first state, the piezoelectric switch is attached to the array substrate and forms the gap with the second end surface; in the second state, the spacer It is in direct contact with the piezoelectric layer and forms compression with the array substrate. 5. The display panel according to claim 3, wherein the whole of the piezoelectric switch is connected to the array substrate, and the first electrode and the second electrode are arranged on the piezoelectric layer itself Both ends in the thickness direction, in the first state, the piezoelectric switch is connected to the array substrate through the first electrode and the second electrode and the second end surface form the gap; In the second state, the spacer is in contact with the second electrode and presses the piezoelectric layer. 6. The display panel according to claim 1, wherein the piezoelectric switch is a split structure, and in the first state, the piezoelectric layer, the first electrode and the second electrode A part of them is disposed on the array substrate and another part is disposed on the second end surface. 7. The display panel according to claim 6, wherein, in the first state, the first electrode and the second electrode are arranged on the array substrate at intervals, and the piezoelectric layer is arranged on The gap is formed between the piezoelectric layer and the array substrate on the second end face; in the second state, the spacer drives the piezoelectric layer to be inserted into the first electrode and the array substrate. The piezoelectric layer is pressed between the second electrodes and the array substrate. 8. The display panel according to claim 6, wherein in the first state, the piezoelectric layer is connected to the array substrate through the first electrode on one side of its thickness direction, and the other side is connected to the array substrate. The second electrode is disposed on the second end surface, and the gap is formed between the piezoelectric layer and the second electrode; in the second state, the spacer passes through the second electrode Squeeze the piezoelectric layer. 9. The display panel according to claim 1, wherein the supporting assembly comprises more than two spacers, and the pressing spacer is arranged between each of the spacers and the array substrate. Electrical switch. 10. The display panel according to claim 9, wherein the display panel comprises a main body area and an edge area, the edge area is arranged around the main body area, and each spacer at the edge area More than two piezoelectric switches are arranged between the object and the array substrate. 11. A display module, characterized in that it comprises: The display panel according to any one of claims 1 to 10; The backlight module is arranged on the side of the array substrate away from the liquid crystal layer, and the backlight module supports the display panel through the edge area of the display panel. 12. A display device comprising the display module according to claim 11.