Display panel, display module and display device

Abstract

The application relates to a display panel, a display module and a display device. The display panel comprises a color film substrate, an array substrate, a liquid crystal layer, a support assembly and a piezoelectric switch. The liquid crystal layer is arranged between the color film substrate and the array substrate. The support assembly comprises a spacer arranged in an array. The spacer has opposite first and second end faces in a direction perpendicular to the array substrate. The spacer is arranged on one side of the color film substrate close to the liquid crystal layer and in the liquid crystal layer through the first end face. The piezoelectric switch is arranged between the spacer and the array substrate. The piezoelectric switch comprises a piezoelectric layer, a first electrode and a second electrode. The second end face covers at least part of the piezoelectric layer in a perpendicular projection on the array substrate. The piezoelectric layer can conduct the first electrode and the second electrode to form a driving electric field. The scheme can directly adjust the angle of liquid crystal molecules during pressing and improve the display effect.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display panel, display module and display device. Background Technology

[0002] As product screen sizes become larger, the backlight module supports the display panel, which can easily lead to abnormal display after pressing. This trend is particularly pronounced on medium and large-sized screens, affecting the visual effect of the product and resulting in poor display uniformity.

[0003] This is mainly because as the size of the display panel increases, the overall area of ​​the display panel increases, resulting in insufficient support from the backlight module. When subjected to external pressure, the interference on the display panel intensifies, causing deformation of the color filter substrate and array substrate of the display panel. This leads to a change in the angle of the liquid crystal molecules at the pressure point, which differs from the angle of other normal liquid crystal molecules, resulting in display abnormalities at the pressure point.

[0004] In existing technologies, display abnormalities are mainly improved by thinning the glass and reducing the overall density of the spacers. However, thinning the glass increases costs, and changes to the design of the spacers can affect the performance of the display panel. Summary of the Invention

[0005] This application provides a display panel, display module, and display device that can directly adjust the angle of liquid crystal molecules when pressed, improving the display without affecting the performance of the display panel.

[0006] On one hand, according to an embodiment of this application, a display panel is provided, including a color filter substrate, an array substrate, a liquid crystal layer, a support component, and a piezoelectric switch. The liquid crystal layer is disposed between the color filter substrate and the array substrate. The support component includes spacers arranged in an array. The spacers have opposing first and second end faces in a direction perpendicular to the array substrate. The spacers are disposed on the side of the color filter substrate near the liquid crystal layer through the first end face and are located in the liquid crystal layer. The piezoelectric switch is disposed between the spacers and the array substrate. The piezoelectric switch includes a piezoelectric layer, a first electrode, and a second electrode. The orthographic projection of the second end face in a direction perpendicular to the array substrate covers at least a portion of the piezoelectric layer. The piezoelectric layer can conduct the first and second electrodes to form a driving electric field. The display panel has a first state and a second state. In the first state, there is a gap between the second end face and the array substrate. In the second state, the second end face and the array substrate press the piezoelectric layer to conduct the first and second electrodes.

[0007] In another aspect, according to an embodiment of this application, a display module is provided, including a backlight module and a display panel as described above. The backlight module is disposed 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.

[0008] In another aspect, an embodiment of this application provides a display device including the display module described above.

[0009] This application provides a display panel, display module, and display device. By placing a piezoelectric switch between spacers on an array substrate and a color filter substrate, the spacers and array substrate press against the piezoelectric layer in the switch, creating a voltage difference between the two electrodes and generating a current. This allows the piezoelectric layer to conduct electricity to the first and second electrodes on both sides, forming an electric field at the piezoelectric switch. Under the influence of this electric field, tilted liquid crystal molecules rotate, preventing the spacers from causing liquid crystal molecule deflection after pressing, which could negatively impact the display effect. This design ensures that while the display panel is pressed, a driving electric field is simultaneously formed at the pressing point, synchronously adjusting the angle of the tilted liquid crystal molecules caused by the pressing. This maintains a normal display effect and improves the display performance without affecting other performance aspects of the display panel, resulting in better usability. Attached Figure Description

[0010] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0011] Figure 1 This is a schematic diagram of the structure of a display panel according to an embodiment of this application;

[0012] Figure 2 This is a partial schematic diagram of a display panel in a first state according to an embodiment of this application;

[0013] Figure 3 This is a partial schematic diagram of another display panel in a first state according to an embodiment of this application;

[0014] Figure 4 This is a partial schematic diagram of a display panel in a second state according to an embodiment of this application;

[0015] Figure 5 This is a partial schematic diagram of a display panel in a first state according to another embodiment of this application;

[0016] Figure 6 This is a partial schematic diagram of a display panel in a first state according to another embodiment of this application;

[0017] Figure 7 This is a partial schematic diagram of another display panel in a second state according to an embodiment of this application;

[0018] Figure 8 This is a partial schematic diagram of a display panel in a first state according to another embodiment of this application;

[0019] Figure 9This is a partial schematic diagram of a display panel in a first state according to another embodiment of this application;

[0020] Figure 10 This is a plan view of a display panel according to an embodiment of this application.

[0021] Figure label:

[0022] 100 - Display panel; M - First state; N - Second state; AA - Main area; NA - Edge area;

[0023] 10 - Color filter substrate; 20 - Array substrate; 30 - Liquid crystal layer;

[0024] 40 - Spacer; 41 - First end face; 42 - Second end face;

[0025] 50 - Piezoelectric switch; 51 - First electrode; 52 - Second electrode; 53 - Piezoelectric layer.

[0026] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0027] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0028] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the display panel, display module, and display device of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] To better understand this application, the following will be combined with... Figures 1 to 10 The display panel, display module, and display device according to embodiments of this application will be described in detail.

[0030] Please see Figures 1 to 4 This application provides a display panel 100, including a color filter substrate 10, an array substrate 20, a liquid crystal layer 30, a support assembly, and a piezoelectric switch 50. The liquid crystal layer 30 is disposed between the color filter substrate 10 and the array substrate 20. The support assembly includes spacers 40 arranged in an array. The spacers 40 have opposing first end faces 41 and second end faces 42 in a direction perpendicular to the array substrate 20. The spacers 40 are disposed on the side of the color filter substrate 10 near the liquid crystal layer 30 through the first end face 41 and are located in the liquid crystal layer 30. The piezoelectric switch 50 is disposed between the spacers 40 and the array substrate 20. Between the substrates 20, the piezoelectric switch 50 includes a piezoelectric layer 53, a first electrode 51, and a second electrode 52. The orthographic projection of the second end face 42 in the direction perpendicular to the array substrate 20 covers at least a portion of the piezoelectric layer 53. The piezoelectric layer 53 can conduct the first electrode 51 and the second electrode 52 to form a driving electric field. 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 face 42 and the array substrate 20. In the second state N, the second end face 42 and the array substrate 20 press the piezoelectric layer 53 to conduct the first electrode 51 and the second electrode 52.

[0031] In the display panel 100, the support assembly has a plurality of spacers 40, which 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.

[0032] Due to the presence of spacers 40 in the liquid crystal layer 30, when the display panel 100 is pressed, the color filter substrate 10 causes the spacers 40 to move within the liquid crystal layer 30, creating stress on the liquid crystal molecules surrounding the spacers 40. This causes the liquid crystal molecules to become disordered, altering the liquid crystal tilt angle and resulting in a difference in phase difference between the liquid crystals around the spacers 40 and other unstressed areas. Especially in black screen conditions, even slight angular differences can lead to excessively large differences in transmittance, resulting in a blurry display.

[0033] The spacer 40 has a certain thickness and has a first end face 41 and a second end face 42 opposite to each other in its thickness direction. The spacer 40 is connected to the color filter substrate 10 through the first end face 41 and the second end face 42 is located in the liquid crystal layer 30. In this embodiment, the influence of the spacer 40 on the display is improved by setting a piezoelectric switch 50 between the spacer 40 and the array substrate 20.

[0034] The piezoelectric switch 50 specifically includes a first electrode 51, a second electrode 52, and a piezoelectric layer 53. The piezoelectric layer 53 is made of piezoelectric material. When the piezoelectric layer 53 is subjected to pressure, it can convert the pressure into electrical energy, thereby connecting 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 electrode and the other is a negative electrode. After the two are connected, a driving electric field can be formed to drive and deflect the liquid crystal molecules, so that the liquid crystal molecules are reset.

[0035] Considering that the spacer 40 and the array substrate 20 specifically squeeze the piezoelectric layer 53 in the piezoelectric switch 50 to form a conducting current, it is necessary to ensure that the orthogonal projection of the second end face 42 of the spacer 40 in the direction perpendicular to the array substrate 20 covers at least part of the piezoelectric layer 53, so that the spacer 40 can accurately squeeze the piezoelectric layer 53 and avoid the piezoelectric layer 53 being unable to bear the force.

[0036] Specifically, when the piezoelectric switch 50 is set, the display panel 100 has a first state M and a second state N. The first state M is the state in which the display panel 100 is not pressed. Therefore, there is a gap between the second end face 42 of the corresponding spacer 40 and the array substrate 20. That is, the spacer 40 and the array substrate 20 do not squeeze the piezoelectric switch 50 between them. No current passes through the piezoelectric layer 53, and the piezoelectric switch 50 is in the open state.

[0037] When the display panel 100 is in the second state N, the display panel 100 is pressed by the outside, causing the spacer 40 to move downward in the liquid crystal layer 30. The angle of the surrounding liquid crystal molecules is disordered. At the same time, the spacer 40 makes contact with the piezoelectric layer 53 and together with the array substrate 20, it squeezes the piezoelectric layer 53. A current is formed in the piezoelectric layer 53 and turns on the piezoelectric switch 50. The surrounding driving electric field can drive the disordered liquid crystal molecules to rotate and reset them, ensuring that the angle of the liquid crystal molecules in the liquid crystal layer 30 is consistent and avoiding local display abnormalities.

[0038] This application provides a display panel 100 that utilizes a piezoelectric switch 50 positioned between spacers 40 on an array substrate 20 and a color filter substrate 10. The piezoelectric switch 50 generates current by pressing a piezoelectric layer 53 between the spacers 40 and the array substrate 20, thus connecting the first electrode 51 and the second electrode 52 on both sides of the piezoelectric layer 53. This creates an electric field at the piezoelectric switch 50, automatically adjusting the angle of the tilted liquid crystal molecules around the spacers 40. This prevents the liquid crystal molecules from deflecting after being pressed, which could negatively impact the display effect. This design ensures that a driving electric field is simultaneously generated at the pressing point when the display panel 100 is pressed, synchronously adjusting the angle of the tilted liquid crystal molecules caused by the pressing. This maintains a normal display effect and improves the display performance without affecting other properties of the display panel 100, resulting in better usability.

[0039] As an optional embodiment, the second end face 42 is covered by a piezoelectric layer 53 in the orthogonal projection in the direction perpendicular to the array substrate 20.

[0040] The present application provides a display panel 100 in which a piezoelectric switch 50 is provided for each spacer 40. The second end face 42 of the spacer 40 can completely cover the piezoelectric layer 53, thereby ensuring that the spacer 40 in the second state N can fully contact the piezoelectric layer 53 and cooperate with the array substrate 20 for compression. This results in higher sensitivity, prevents the failure to form a driving electric field due to misalignment during compression, and makes the adjustment process reliable.

[0041] 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. The first electrode 51 and the second electrode 52 are disposed opposite to each other on both sides of the piezoelectric layer 53. In the first state M, the entire piezoelectric switch 50 is connected to one of the array substrate 20 and the spacer 40.

[0042] Optionally, the piezoelectric switch 50 can adopt an integral structure, that is, the piezoelectric layer 53, the first electrode 51 and the second electrode 52 are always moved as a whole. 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.

[0043] In the first state M, the piezoelectric switch 50 can be entirely disposed on the spacer 40 or the array substrate 20. When the piezoelectric switch 50 is entirely disposed on the spacer 40, it is specifically disposed on the second end face 42 of the spacer 40. In the second state N, the spacer 40, which moves after being pressed, will drive the piezoelectric switch 50 to move synchronously until it contacts the array substrate 20 and forms a compression with the array substrate 20. Therefore, the compression 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 realize the liquid crystal angle adjustment.

[0044] When the piezoelectric switch 50 is disposed on the array substrate 20, the piezoelectric switch 50 and the spacer 40 must be correspondingly disposed. Specifically, the piezoelectric layer 53 and the second end face 42 must be correspondingly disposed. In the second state N, when pressed, only the spacer 40 moves downward until the second end face 42 directly contacts the piezoelectric switch 50 and is squeezed against the array substrate 20, thereby turning on the piezoelectric switch 50 and forming a driving electric field.

[0045] The display panel 100 provided in this application embodiment integrates the piezoelectric switch 50 into a single unit, making the piezoelectric switch 50 an integral structure. This facilitates the arrangement and control of the piezoelectric switch 50, achieving a better squeezing effect of the spacer 40 and the array substrate 20 on the piezoelectric layer 53, thereby quickly forming a driving electric field and completing the liquid crystal adjustment process.

[0046] As an optional embodiment, please refer to Figures 2 to 4 The piezoelectric switch 50 is integrally connected to the array substrate 20. The first electrode 51 and the second electrode 52 are disposed at both ends of the piezoelectric layer 53 along its length. In the first state M, the piezoelectric switch 50 is attached to the array substrate 20 and forms a gap with the second end face 42. In the second state N, the spacer 40 is in direct contact with the piezoelectric layer 53 and is compressed with the array substrate 20.

[0047] Taking the piezoelectric switch 50 disposed on the array substrate 20 as an example, optionally, the first electrode 51 and the second electrode 52 can be disposed at both ends of the piezoelectric layer 53 in its own length direction. The piezoelectric switch 50 forms a transverse layered structure as a whole. Therefore, the first electrode 51, the second electrode 52 and the piezoelectric layer 53 can be respectively attached to the array substrate 20.

[0048] 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 moves down and directly contacts and presses the piezoelectric layer 53 through the second end face 42, thereby turning on the piezoelectric switch 50.

[0049] When the above-mentioned transverse piezoelectric switch 50 structure is used to install on the spacer 40, it can be connected to the second end face 42 only through the piezoelectric layer 53, while the first electrode 51 and the second electrode 52 are suspended on both sides of the piezoelectric layer 53. In the second state N, the piezoelectric switch 50 moves towards the array substrate 20 as the spacer 40 moves, 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.

[0050] The present application provides a display panel 100, which provides a specific structure and setting position of a piezoelectric switch 50. The piezoelectric switch 50 adopts a horizontal structure, which is conducive to the direct contact between the spacer 40 and the piezoelectric layer 53 and the direct formation of extrusion pressure at the piezoelectric layer 53, thereby realizing the rapid formation of a driving electric field, having better responsiveness, and quickly completing the liquid crystal adjustment process.

[0051] As an optional embodiment, please refer to Figures 5 to 7 The piezoelectric switch 50 is connected to the array substrate 20. The first electrode 51 and the second electrode 52 are disposed at both ends of the piezoelectric layer 53 in the thickness direction. 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 face 42. In the second state N, the spacer 40 contacts the second electrode 52 and squeezes the piezoelectric layer 53.

[0052] Taking the example of setting the piezoelectric switch 50 on the array substrate 20, the first electrode 51 and the second electrode 52 can be set at both ends of the piezoelectric layer 53 in the thickness direction. The piezoelectric switch 50 forms a longitudinal block structure. Therefore, the piezoelectric switch 50 can be specifically attached to the array substrate 20 through the first electrode 51 or the second electrode 52.

[0053] 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 between the spacer 40 and the second electrode 52; in the second state N, the spacer 40 moves down and directly contacts and presses the second electrode 52 through the second end face 42, forming an indirect pressure on the intermediate piezoelectric layer 53, thereby turning on the piezoelectric switch 50.

[0054] When the above-described longitudinal piezoelectric switch 50 structure is disposed on the spacer 40, it can also be attached to the second end face 42 through the first electrode 51 or the second electrode 52, while the piezoelectric layer 53 is indirectly in contact with the second end face 42 and located between the first electrode 51 and the second electrode 52. In the second state N, the piezoelectric switch 50 moves towards the array substrate 20 as the spacer 40 moves, until the first electrode 51 or the second electrode 52 contacts the array substrate 20 and forms a bonding and pressing action. At this time, the force point is at the first electrode 51 or the second electrode 52, and the formed pressing force can be transmitted through the first electrode 51 or the second electrode 52 to the middle piezoelectric layer 53, thereby turning on the piezoelectric switch 50.

[0055] The present application provides a display panel 100, which provides a specific structure and setting position of a piezoelectric switch 50. The piezoelectric switch 50 is arranged in a vertical direction, so that the spacer 40 is closer to the piezoelectric switch 50, making it easier to contact the piezoelectric switch 50 on the array substrate 20 and form a squeezing force. At the same time, a vertical driving electric field can be formed to adjust the vertical position of the liquid crystal molecules, which has a more comprehensive adjustment capability and can also quickly complete the liquid crystal adjustment process.

[0056] As an optional embodiment, please refer to Figure 8 and Figure 9 The piezoelectric switch 50 has a split structure. In the first state M, a portion of the piezoelectric layer 53, the first electrode 51, and the second electrode 52 are disposed on the array substrate 20, and the other portion is disposed on the second end face 42.

[0057] In this embodiment, the first electrode 51, the second electrode 52, and the piezoelectric layer 53 in the piezoelectric switch 50 are independent structures. Optionally, each of the three can adopt a block or layer structure. In particular, in the first state M, the first electrode 51, the second electrode 52, and the piezoelectric layer 53 are separated from each other. Only in the second state N can they be spliced ​​together to form the piezoelectric switch 50 as a whole and apply the squeezing force to the piezoelectric layer 53 to synchronously turn on the piezoelectric switch 50.

[0058] In the first state M, regardless of the positions of the first electrode 51, the second electrode 52, and the piezoelectric layer 53, it is necessary to ensure that the piezoelectric layer 53 is disposed on the second end face 42 of the spacer 40 or on the array substrate 20 facing the second end face 42, so as to ensure that in the second state N, the spacer 40 can compress the piezoelectric layer 53 of the piezoelectric switch 50.

[0059] Meanwhile, 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 can be arranged opposite to it. It is necessary to ensure that in the second state N, the first electrode 51, the second electrode 52 and the piezoelectric layer 53 can be spliced ​​together to form a piezoelectric switch 50, and finally the first electrode 51 and the second electrode 52 are connected through the piezoelectric layer 53.

[0060] This application provides a display panel 100, which provides a split structure and setting position of a piezoelectric switch 50. By setting the first electrode 51, the second electrode 52 and the piezoelectric layer 53 in the piezoelectric switch 50 as independent components, they can be spliced ​​together to form a conductive electrode in the second state N, which increases the flexibility and diversity of the piezoelectric switch 50 structure setting and realizes the conduction of the piezoelectric switch 50 more flexibly.

[0061] As an optional embodiment, please refer to Figure 8 In the first state M, the first electrode 51 and the second electrode 52 are disposed on the array substrate 20 at intervals, and the piezoelectric layer 53 is disposed on the second end face 42, forming a gap between the piezoelectric 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 to press the piezoelectric layer 53 against the array substrate 20.

[0062] 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, while the first electrode 51 and the second electrode 52 are disposed together on the array substrate 20 with a gap. At this time, it is necessary to ensure that the piezoelectric layer 53 can be just accommodated between the first electrode 51 and the second electrode 52.

[0063] In the first state M, the first electrode 51, the second electrode 52, and the piezoelectric layer 53 form a gap between each other. When switching to the second state N, due to external pressure, the spacer 40 drives the piezoelectric layer 53 to approach the array substrate 20 until it is squeezed together 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. After the current is formed, the first electrode 51 and the second electrode 52 are connected, and finally a driving electric field is formed.

[0064] This application provides a display panel 100, which offers a split structure and placement of a piezoelectric switch 50. By setting the first electrode 51, the second electrode 52, and the piezoelectric layer 53 in the piezoelectric switch 50 as independent components, they can be spliced ​​together to form a conductive electrode in the second state N. This increases the flexibility and diversity of the piezoelectric switch 50 structure. In the second state N, the overall structure forms a transverse piezoelectric switch 50, which facilitates direct contact between the spacer 40 and the piezoelectric layer 53 and the direct formation of extrusion pressure at the piezoelectric layer 53. This enables the rapid formation of a driving electric field, resulting in better responsiveness and faster completion of the liquid crystal adjustment process.

[0065] As an optional embodiment, please refer to Figure 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 of its thickness direction and the second electrode 52 on the other side is disposed on the second end face 42, and a gap is formed between the piezoelectric layer 53 and the second electrode 52; in the second state N, the spacer 40 squeezes the piezoelectric layer 53 through the second electrode 52.

[0066] In this scheme, the piezoelectric layer 53 is connected to the array substrate 20 through the first electrode 51, while being separately disposed 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 separately disposed from the first electrode 51.

[0067] 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. The piezoelectric switch 50 is in the open state and is arranged longitudinally. In the second state N, due to external pressing, the spacer 40 moves toward the array substrate 20 and drives the second electrode 52 on the second end face 42 to contact and adhere to the piezoelectric layer 53 on the array substrate 20. At the same time, the first electrode 51 and the second electrode 52 exert a squeezing force on the piezoelectric layer 53 in the middle. The piezoelectric switch 50 forms a longitudinal structure, thereby turning on the first electrode 51 and the second electrode 52.

[0068] This application provides a display panel 100 with a split structure and placement of a piezoelectric switch 50. By setting the first electrode 51, the second electrode 52, and the piezoelectric layer 53 in the piezoelectric switch 50 as independent components, they can be spliced ​​together and connected in the second state N, increasing the flexibility and diversity of the piezoelectric switch 50 structure. In the second state N, the overall structure forms a vertical piezoelectric switch 50 structure, making the spacer 40 closer to the piezoelectric switch 50, thus making it easier to form a pressing force with the first electrode 51 on the array substrate 20. At the same time, a vertical driving electric field can be formed to adjust the vertical position of the liquid crystal molecules, providing a more comprehensive adjustment capability and enabling the liquid crystal adjustment process to be completed quickly.

[0069] As an optional embodiment, the support assembly includes two or more spacers 40, and each spacer 40 is provided with a piezoelectric switch 50 between it and the array substrate 20.

[0070] Optionally, the color filter substrate 10 in the display panel 100 is usually provided with a number of micro spacers 40. Since each spacer 40 is a micron-scale structure, when the display panel 100 is pressed with a finger, several spacers 40 can be covered, causing several spacers 40 to move toward the array substrate 20, causing the liquid crystal molecules near each spacer 40 to become disordered.

[0071] Based on the above considerations, the piezoelectric switch 50 can be set as a micron-level structure and set in a one-to-one correspondence with each spacer 40, thereby enabling the position adjustment of disordered liquid crystal molecules at any spacer 40.

[0072] The display panel 100 provided in this application embodiment covers the electric field adjustment at all positions of the spacers 40 in the display panel 100 by setting piezoelectric switches 50 respectively to correspond to each spacer 40, ensuring that the liquid crystal molecules at any position can be adjusted, achieving full coverage of adjustment, and more fully guaranteeing the display effect.

[0073] As an optional embodiment, please refer to Figure 10 The display panel 100 includes a main area AA and an edge area NA. The edge area NA is arranged around the main area AA. Two or more piezoelectric switches 50 are arranged between each spacer 40 in the edge area NA and the array substrate 20.

[0074] Considering that in the backlight display module, due to the presence of the backlight, a connection is formed between the backlight and the display panel 100, specifically through the connection with the edge area NA of the display panel 100, the edge area NA of the display panel 100 needs to bear a certain supporting load, which makes the liquid crystal molecules around the spacer 40 at the edge area NA more disordered.

[0075] The display panel 100 provided in this application embodiment improves the driving electric field strength at the edge region NA by correspondingly setting multiple piezoelectric switches 50 on the spacer 40 at the edge region NA. This allows for more thorough adjustment of the liquid crystal molecules in the edge region NA, enabling a more targeted adjustment process of the liquid crystal molecules and resulting in better display performance.

[0076] The present application provides a display module including a backlight module and a display panel 100 as described above. The backlight module is disposed on the side of the array substrate 20 away from the liquid crystal layer 30, and the backlight module supports the display panel 100 through the edge region NA of the display panel 100.

[0077] This application provides a display device including the display module described above.

[0078] This application provides a display panel, display module, and display device. By placing a piezoelectric switch between spacers on an array substrate and a color filter substrate, and utilizing the principle that the piezoelectric layer in the piezoelectric switch is formed by the spacers and the array substrate pressing against it, a current is generated. This causes the piezoelectric layer to conduct to the first and second electrodes on both sides, thereby forming an electric field at the piezoelectric switch. This automatically adjusts the angle of the tilted liquid crystal molecules around the spacers, preventing the liquid crystal molecules from deflecting after being pressed, which would have an adverse effect on the display effect. Through the above arrangement, it is ensured that when the display panel is pressed, a driving electric field is simultaneously formed at the pressing point, and the angle of the tilted liquid crystal molecules caused by the pressing is simultaneously adjusted, so that the display effect remains normal. While improving the display effect, it does not affect other performance characteristics of the display panel, resulting in better usability.

[0079] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that, include: Color filter substrate and array substrate; A liquid crystal layer is disposed between the color filter substrate and the array substrate; A support assembly includes spacers arranged in an array, each spacer having a first end face and a second end face in a direction perpendicular to the array substrate, the spacers being disposed on the side of the color filter substrate near the liquid crystal layer via the first end face and located in the liquid crystal layer; A piezoelectric switch is disposed between the spacer and the array substrate. The piezoelectric switch includes a piezoelectric layer, a first electrode and a second electrode. The orthographic projection of the second end face in the direction perpendicular to the array substrate covers at least a portion of the piezoelectric layer. The piezoelectric layer is capable of conducting the first electrode and the second electrode to form a driving electric field. The display panel has a first state and a second state. In the first state, there is a gap between the second end face and the array substrate. In the second state, the second end face and the array substrate press the piezoelectric layer to conduct the first electrode and the second electrode. The piezoelectric switch has a split structure. In the first state, a portion of the piezoelectric layer, the first electrode, and the second electrode are disposed on the array substrate, and another portion is disposed on the second end face. In the first state, the first electrode and the second electrode are spaced apart on the array substrate, and the piezoelectric layer is disposed on the second end face, forming the gap between the piezoelectric layer and the array substrate; in the second state, the spacer drives the piezoelectric layer to be inserted between the first electrode and the second electrode and presses the piezoelectric layer against the array substrate, or... In the first state, the piezoelectric layer is connected to the array substrate via the first electrode on one side of its thickness direction and the second electrode on the other side is disposed on the second end face, forming the gap between the piezoelectric layer and the second electrode; in the second state, the spacer compresses the piezoelectric layer through the second electrode.

2. The display panel according to claim 1, characterized in that, The second end face, in a direction perpendicular to the array substrate, covers the piezoelectric layer.

3. The display panel according to claim 1, characterized in that, The support assembly includes two or more spacers, and each spacer is provided with a piezoelectric switch between itself and the array substrate.

4. The display panel according to claim 3, characterized in that, The display panel includes a main area and an edge area, the edge area being disposed around the main area, and two or more piezoelectric switches being disposed between each of the spacers in the edge area and the array substrate.

5. A display module, characterized in that, include: The display panel as described in any one of claims 1 to 4; A backlight module is disposed 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.

6. A display device, characterized in that, Includes the display module as described in claim 5.

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