Display panel and display device

Abstract

The invention provides a display panel and a display device, the display panel comprises a first substrate, a second substrate, a liquid crystal layer, an auxiliary spacer, a first electrode, a second electrode and an elastomer, and the first substrate and the second substrate are opposite and arranged at an interval; the liquid crystal layer is arranged between the first substrate and the second substrate; the auxiliary spacer comprises a first spacer which is arranged on the first substrate and is positioned in the liquid crystal layer; the first electrode is arranged on the first spacer; the second electrode is arranged on the second substrate, is opposite to the first electrode and is spaced from the first electrode to form a first capacitor; the elastic body is arranged between the first spacer and the second substrate, and the peripheral side wall of the first spacer and the liquid crystal layer form a second capacitor; the elastic body is configured to change the area of the peripheral side wall, wrapping the first spacer, of the elastic body under the action of the first spacer so as to change the size of the second capacitor. According to the display panel and the display device provided by the invention, the pressure sensing linearity of the pressure sensor integrated on the display panel and the fineness of the pressure sensing intensity gradient can be improved.

Description

Technical Field

[0001] This application belongs to the technical field of display, and particularly relates to a display panel and a display device. Background Art

[0002] Nowadays, all display device manufacturers are striving to provide display devices with a higher screen-to-body ratio and a thinner and lighter form factor, which drives display panel suppliers to integrate more sensors on the screen to save body space and increase the screen-to-body ratio. Currently, it is known that the screen can integrate an ambient light color temperature sensor, an ambient light brightness sensor, a fingerprint recognition sensor, a pressure sensor, etc.

[0003] However, in the existing pressure sensor structure integrated in the screen, generally, two additional layers of parallel conductors facing each other are added in the screen to form a capacitor. When pressed, the distance between the parallel conductors facing each other changes, and the capacitance also changes accordingly. By detecting the change in the capacitance of this capacitor, the pressure intensity of the pressing action or the degree of screen deformation can be determined. However, the existing screen-integrated pressure sensor is limited by the maximum deformation amount of the screen. The strain degree of the screen deformation after being stressed will gradually decrease, that is, the change in the distance between the parallel conductors facing each other during pressing will cause the screen deformation to gradually decrease as the pressure increases. This will result in a decrease in the change gradient of the strain capacitance generated by the screen deformation, causing insufficient linearity of the screen-integrated pressure sensing and insufficient pressure sensing force gradient, thus limiting the application scenarios of the screen-integrated pressure sensor. Summary of the Invention

[0004] Regarding the deficiencies in the prior art, this application provides a display panel and a display device, which can improve the pressure sensing gradient of the pressure sensor integrated in the display panel, and further improve the linearity of the pressure sensing and the fineness of the pressure sensing force gradient of the pressure sensor integrated in the display panel.

[0005] On the one hand, this application provides a display panel, including: A first substrate; A second substrate, opposite to and spaced from the first substrate in a first direction; A liquid crystal layer, disposed between the first substrate and the second substrate; Auxiliary spacers, including a first spacer, the first spacer is disposed on a side of the first substrate facing the second substrate and is located within the liquid crystal layer; A first electrode, disposed within the first spacer; A second electrode, disposed on a side of the second substrate facing the first substrate, the first electrode and the second electrode are opposite to and spaced from each other in the first direction to form a first capacitor; An elastomer is disposed between the first spacer and the second substrate. A second capacitance is formed between the peripheral sidewall of the first spacer and the liquid crystal in the liquid crystal layer, and the second capacitance is an electric double layer capacitance. The elastomer is configured to change the area of the elastomer covering the peripheral sidewall of the first spacer under the action of the first spacer, so as to change the magnitude of the second capacitance.

[0006] In a possible implementation manner, the auxiliary spacer further includes a second spacer. The second spacer is disposed on a side of the second substrate facing the first substrate. The second spacer is located in the liquid crystal layer and covers the second electrode. The first spacer and the second spacer are disposed opposite to and spaced apart from each other along the first direction, and the elastomer is disposed between the first spacer and the second spacer.

[0007] In a possible implementation manner, along the first direction, the orthographic projection of the first spacer on the elastomer is completely located within the elastomer, and the orthographic projection of the elastomer on the second spacer is completely located within the second spacer.

[0008] In a possible implementation manner, a groove is formed on a side of the second spacer facing the first spacer. The elastomer is disposed in the groove. One end of the first spacer facing the second spacer is located in the groove and abuts against the elastomer. A gap is formed between the peripheral sidewall of the first spacer and the inner sidewall of the groove, and at least part of the liquid crystal in the liquid crystal layer is located in the gap and covers the peripheral sidewall of the first spacer.

[0009] In a possible implementation manner, from one end of the first spacer facing the second spacer to the end of the first spacer facing away from the second spacer, the radial dimension of the first spacer gradually increases; and / or, from the opening of the groove to the bottom of the groove, the radial dimension of the groove gradually increases.

[0010] In a possible implementation manner, the first electrode extends along the first direction, and a third capacitance is formed between the peripheral sidewall of the first electrode and the liquid crystal in the liquid crystal layer. The elastomer is configured to change the area of the orthographic projection of the elastomer surrounding the peripheral sidewall of the first electrode under the action of the first spacer, so as to change the magnitude of the third capacitance.

[0011] In a possible implementation manner, a fourth capacitance is formed between the liquid crystal of the liquid crystal layer in contact with the elastomer on the end face of the first electrode facing the second electrode, and the magnitude of the fourth capacitance changes with the displacement amount of the first electrode along the first direction towards the second electrode.

[0012] In a possible implementation, the display panel further includes main spacers sandwiched between the first substrate and the second substrate; a black matrix is provided in the first substrate, and the main spacers and the black matrix are disposed opposite to each other along the first direction, and the auxiliary spacers and the black matrix are disposed opposite to each other along the first direction.

[0013] In a possible implementation, a common electrode is provided on the second substrate, and the common electrode is disposed on a side of the second substrate facing the first substrate, and the common electrode includes the second electrode; alternatively, a pixel electrode is provided on the second substrate, the pixel electrode is disposed on a side of the second substrate facing the first substrate, and the second electrode and the pixel electrode are separately provided.

[0014] On the other hand, the present application provides a display device, including: The above-mentioned display panel.

[0015] In the display panel and the display device provided by the present application, the liquid crystal layer and the auxiliary spacers are both sandwiched between the first substrate and the second substrate. A first electrode is provided in the first spacer of the auxiliary spacer, the second electrode is disposed on a side of the second substrate facing the first substrate, and the second spacer completely covers the second electrode.

[0016] On the one hand, the first electrode and the second electrode are disposed opposite to each other and spaced apart along the first direction to form a first capacitor. When the first substrate deforms relative to the second substrate, the first spacer moves with the first substrate, so that the distance between the first electrode and the second electrode 60 changes, and further the first capacitor changes.

[0017] On the other hand, an elastomer is disposed between the first spacer and the second spacer. The peripheral sidewall of the first spacer forms a solid-liquid interface with the liquid crystal in the liquid crystal layer. This solid-liquid interface forms a second capacitor, and the second capacitor is an electric double layer capacitor. When the first substrate deforms relative to the second substrate, the first spacer moves with the first substrate and presses the elastomer. Under the action of the first spacer, the elastomer changes the area of its peripheral sidewall covering the first spacer, so that the area of the solid-liquid interface formed by the peripheral sidewall of the first spacer and the liquid crystal in the liquid crystal layer changes, that is, the facing area between the peripheral sidewall of the first spacer and the liquid crystal in the liquid crystal layer changes, and then the size of the second capacitor changes. Since the second capacitor is an electric double layer capacitor and its capacitance is extremely large, during the process of the change in the facing area between the peripheral sidewall of the first spacer and the liquid crystal in the liquid crystal layer, the change in the capacitance of the second capacitor is also extremely large. Thus, for the display panel provided in the first embodiment of the present application, under the same pressure, when the first substrate deforms relative to the second substrate, it is beneficial to increase the pressure sensing gradient of the pressure sensor integrated in the display panel, and then improve the pressure sensing linearity and the fineness of the pressure sensing force gradient of the pressure sensor integrated in the display panel, facilitating more hierarchical settings of pressure sensing for the display panel, improving the accuracy of the display panel for pressure sensing, and expanding the application scenarios of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments provided by the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is a schematic structural diagram of a display device provided by an embodiment of the present application; Figure 2 is a cross-sectional structure of a display panel provided by the first embodiment of the present application Figure 1 ; Figure 3 is a cross-sectional structure of a display panel provided by the first embodiment of the present application Figure 2 ; Figure 4 is a partial schematic diagram of a display panel provided by the first embodiment of the present application in a first state; Figure 5 is a partial schematic diagram of a display panel provided by the first embodiment of the present application in a second state; Figure 6 is a capacitance distribution diagram of a display panel provided by the first embodiment of the present application in the first state; Figure 7 It is a capacitance distribution diagram of a display panel provided by the first embodiment of the present application in the second state; Figure 8 It is an equivalent capacitance circuit diagram of a display panel provided by the first embodiment of the present application; Figure 9 It is a cross-sectional structure diagram of a display panel provided by the second embodiment of the present application; Figure 10 It is a cross-sectional structure diagram of a display panel provided by the third embodiment of the present application.

[0020] Explanation of the reference numerals in the drawings: Display device - 1000, display panel - 100, first substrate - 10, pixel layer - 11, panel layer - 12, substrate layer - 13, black matrix - 14, second substrate - 20, insulating layer - 21, planarization layer - 22, gate - 23, source-drain electrode - 24, pixel electrode - 25, common electrode - 26, liquid crystal layer - 30, auxiliary spacer - 40, first spacer - 41, second spacer - 42, groove - 421, gap - 422, first electrode - 50, second electrode - 60, elastomer - 70, main spacer - 80, fixed capacitance - C 00 , first capacitance - C 11 , second capacitance - C 21 , third capacitance - C 31 , fourth capacitance - C 41 , changed first capacitance - C 12 , changed second capacitance - C 22 , changed third capacitance - C 32 , changed fourth capacitance - C 42 . Detailed implementation manners

[0021] Next, the technical solutions of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described implementation manners are only a part of the implementation manners of the present application, rather than all of the implementation manners. Based on the implementation manners in the present application, all other implementation manners obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0022] The following description of each embodiment refers to the attached drawings, which illustrate specific embodiments in which the present application can be implemented. Directional terms mentioned in the description of the present application, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top surface", "side surface", "bottom surface", "top wall", "side wall", "bottom wall", "inner side wall", "outer side wall", "length direction", "width direction", "height direction", etc., are only references to the directions in the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present application. In the description of the present application, terms such as "first", "second", "third", "fourth", etc. are only used to distinguish the objects described and do not have any sequential or technical meaning. In the description of the present application, the "connection" and "coupling" involved, unless otherwise specified, both include direct connection (coupling) and indirect connection (coupling).

[0023] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a display device provided by an embodiment of the present application.

[0024] This embodiment provides a display device 1000. The display device 1000 includes a display panel 100, and the display panel 100 is used to display image information. The display device 1000 provided in this embodiment includes, but is not limited to, being applied to mobile phones, tablet computers, laptop computers, desktop computers, vehicle-mounted devices, televisions, wearable devices, etc., and the present application does not make any restrictions on this. Among them, the display panel 100 of the display device 1000 provided in this embodiment also has a pressure sensing function, so that the display device 1000 has both the functions of image display and pressure sensing.

[0025] In some embodiments, the display device 1000 further includes components such as a display panel 100, a driving circuit, and a housing to implement the image display function. The display panel 100 is the core part of the display device 1000 and is responsible for the actual image display. The display device 1000 controls the display content of the display panel 100 through the driving circuit to achieve the visual output of information. Through the control of the driving circuit, the display panel 100 can present various images and video contents. The housing is a structure for protecting and supporting the display panel 100 and the driving circuit.

[0026] However, in the existing structure of screen-integrated pressure sensors, generally two additional layers of parallel conductors facing each other are added in the screen to form a capacitor. When pressed, the distance between the parallel conductors facing each other changes, and the capacitance also changes accordingly. By detecting the change in the capacitance of this capacitor, the pressure intensity of the pressing action or the degree of screen deformation can be determined. However, the existing screen-integrated pressure sensors are limited by the maximum deformation amount of the screen. The strain degree of the screen deformation after being stressed will gradually decrease, that is, the change in the distance between the parallel conductors facing each other during pressing will cause the screen deformation to gradually decrease as the pressure increases. This will result in a decrease in the change gradient of the strain capacitance generated by the screen deformation, causing insufficient linearity of screen-integrated pressure sensing and insufficient gradient of pressure sensing force, thus limiting the application scenarios of the screen-integrated pressure sensors. For example, when the screen is applied to vehicle-mounted physical buttons, due to insufficient linearity of screen pressure sensing and insufficient gradient of pressure sensing force, it will affect the hierarchical setting of screen pressing pressure sensing, and cannot provide accurate pressure information to the vibration feedback device, resulting in distorted screen tactile feedback, thus affecting the pressing accuracy of vehicle-mounted screen buttons.

[0027] Based on this, the present application provides a display panel 100 integrated with a pressure sensor to solve the above technical problems. The following provides a detailed introduction to the display panel 100 integrated with a pressure sensor provided by the present application.

[0028] First Embodiment: Please refer to Figures 1 to 5 , Figure 2 which is a cross-sectional structure of a display panel provided by the first embodiment of the present application Figure 1 , Figure 3 which is a cross-sectional structure of a display panel provided by the first embodiment of the present application Figure 2 , Figure 4 which is a partial schematic diagram of a display panel provided by the first embodiment of the present application in the first state, Figure 5 which is a partial schematic diagram of a display panel provided by the first embodiment of the present application in the second state.

[0029] The first embodiment of the present application provides a display panel 100, which is applied to the above-mentioned display device 1000. The display panel 100 provided by the first embodiment of the present application includes a first substrate 10, a second substrate 20, a liquid crystal layer 30, auxiliary spacers 40, a first electrode 50, a second electrode 60, and an elastomer 70.

[0030] The first substrate 10 and the second substrate 20 are opposite and spaced apart in a first direction, and the liquid crystal layer 30 is filled between the first substrate 10 and the second substrate 20. Wherein, the first direction is the stacking direction of the first substrate 10, the liquid crystal layer 30, and the second substrate 20.

[0031] The auxiliary spacer 40 is located in the liquid crystal layer 30, and the auxiliary spacer 40 includes a first spacer 41 and a second spacer 42. The first spacer 41 and the second spacer 42 are both insulators. The first spacer 41 is arranged on the side of the first substrate 10 facing the second substrate 20 and is located in the liquid crystal layer 30. The second spacer 42 is arranged on the side of the second substrate 20 facing the first substrate 10 and is located in the liquid crystal layer 30. The first spacer 41 and the second spacer 42 are opposite to each other and spaced apart along a first direction.

[0032] The first electrode 50 is disposed in the first spacer 41. The second electrode 60 is disposed on the side of the second substrate 20 facing the first substrate 10, and the second electrode 60 is completely sandwiched between the second spacer 42 and the second substrate 20, that is, the second spacer 42 completely covers the second electrode 60. The first electrode 50 and the second electrode 60 are opposite and spaced apart along the first direction, so that a first capacitor C is formed between the first electrode 50 and the second electrode 60. 11 .

[0033] The elastic body 70 is disposed between the first spacer 41 and the second spacer 42. The peripheral side wall of the first spacer 41 forms a solid-liquid interface with the liquid crystal in the liquid crystal layer 30. The solid-liquid interface forms a second capacitor C 21 , the second capacitor C 21 The elastic body 70 is configured to change the area of ​​the peripheral side wall of the first spacer 41 covered by the elastic body 70 under the action of the first spacer 41, so as to change the area of ​​the solid-liquid interface formed by the peripheral side wall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30, thereby changing the second capacitor C 21 size.

[0034] It is important to understand that the working principle of the above-mentioned electrical double-layer capacitor (EDLC) with extremely large capacitance is based on the interfacial double-layer theory proposed by physicist Helmholtz. When charging the electrode, the surface charge of the electrode attracts the opposite ions in the surrounding electrolyte solution to form a double charge layer. Since the distance between the two charge layers is very small, coupled with the use of a special electrode structure, the surface area of ​​the electrode is increased by ten thousand times, thus generating extremely large capacitance.

[0035] In the first embodiment of the present application, the first substrate 10 is a color filter substrate. Other functional film layers related to the color filter substrate are integrated in the first substrate 10. The other functional film layers related to the color filter substrate include, but are not limited to, a pixel layer 11, a panel layer 12, a substrate layer 13, a black matrix 14, and so on. The second substrate 20 is an array substrate. Other functional film layers related to the array substrate are integrated in the second substrate 20. The other functional film layers related to the array substrate include, but are not limited to, an insulating layer 21, a planarization layer 22, a gate 23, source-drain electrodes 24, a pixel electrode 25, a common electrode 26, and so on. It can be understood that in other embodiments, the first substrate 10 may be an array substrate and the second substrate 20 may be a color filter substrate. The present application does not limit this.

[0036] In the first embodiment of the present application, the elastomer 70 is a gas capsule. The elastomer 70 has the ability to deform when subjected to an external force and recover its deformation when the external force is removed. When the display panel 100 is deformed by an external force, the external force is transmitted to the first spacer 41. The first spacer 41 presses the elastomer 70, causing the elastomer 70 to deform and wrap around the peripheral sidewall of the first spacer 41. When the external force acting on the display panel 100 is removed, the first spacer 41 moves away from the elastomer 70 under the action of the display panel 100, that is, the external force acting on the elastomer 70 is removed, and the elastomer 70 can recover its deformation. It can be understood that in some other embodiments, the elastomer 70 may be a structure such as elastic silica gel, as long as it meets the above functions of the elastomer 70. The present application does not limit this.

[0037] For the display panel 100 provided in the first embodiment of the present application, the liquid crystal layer 30 and the auxiliary spacer 40 are both sandwiched between the first substrate 10 and the second substrate 20. A first electrode 50 is disposed in the first spacer 41 of the auxiliary spacer 40. The second electrode 60 is disposed on the side of the second substrate 20 facing the first substrate 10, and the second spacer 42 completely covers the second electrode 60.

[0038] On the one hand, the first electrode 50 and the second electrode 60 are opposite and spaced apart in a first direction to form a first capacitor C 11 . When the first substrate 10 deforms relative to the second substrate 20, the first spacer 41 moves with the first substrate 10, causing the distance between the first electrode 50 and the second electrode 60 to change, and thus causing the first capacitor C 11 to change.

[0039] On the other hand, the elastomer 70 is disposed between the first spacer 41 and the second spacer 42. The peripheral sidewall of the first spacer 41 forms a solid-liquid interface with the liquid crystal of the liquid crystal layer 30. This solid-liquid interface will form a second capacitor C 21 , and the second capacitor C 21is an electric double-layer capacitor. During the deformation of the first substrate 10 relative to the second substrate 20, the first spacer 41 moves along with the first substrate 10 and presses the elastomer 70. Under the action of the first spacer 41, the elastomer 70 changes the area of its circumferential sidewall covering the first spacer 41, so that the area of the solid-liquid interface formed by the liquid crystal in the liquid crystal layer 30 and the circumferential sidewall of the first spacer 41 changes, that is, the facing area between the circumferential sidewall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30 changes, and then the second capacitance C 21 will change. Since the second capacitance C 21 is an electric double-layer capacitor and its capacitance is extremely large. During the process of the change in the facing area between the circumferential sidewall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30, the change in the capacitance of the second capacitance C 21 is also extremely large. Thus, for the display panel 100 provided in the first embodiment of the present application, under the same pressure, when the first substrate 10 deforms relative to the second substrate 20, it is beneficial to increase the pressure induction gradient of the pressure sensor integrated in the display panel 100, and then improve the pressure induction linearity and the fineness of the pressure induction force gradient of the pressure sensor integrated in the display panel 100, facilitating more hierarchical settings of pressure induction for the display panel 100, improving the accuracy of pressure induction of the display panel 100, and expanding the application scenarios of the display panel 100.

[0040] Please refer to Figure 2 and Figure 3 . In one embodiment, to better improve the support stability of the overall structure of the display panel 100, the display panel 100 further includes a main spacer 80. The main spacer 80 is sandwiched between the first substrate 10 and the second substrate 20 to support the first substrate 10 and the second substrate 20. Further, a black matrix 14 is provided in the first substrate 10. The main spacer 80 and the black matrix 14 are arranged opposite to each other in the first direction. The first spacer 41 and the second spacer 42 of the auxiliary spacer 40 are both arranged opposite to the black matrix 14 in the first direction.

[0041] For the display panel 100 provided in the first embodiment of the present application, on the one hand, by sandwiching the main spacer 80 between the first substrate 10 and the second substrate 20 to support the first substrate 10 and the second substrate 20, the support stability of the overall structure of the display panel 100 is better. On the other hand, by providing the black matrix 14 in the first substrate 10, arranging the main spacer 80 and the black matrix 14 opposite to each other in the first direction, and arranging the first spacer 41 and the second spacer 42 of the auxiliary spacer 40 opposite to the black matrix 14 in the first direction, the number of film layers in the light-transmitting part of the display panel 100 can be reduced, so as to reduce the influence of the main spacer 80 and the auxiliary spacer 40 on the display effect of the display panel 100, and then improve the light transmittance of the display panel 100.

[0042] Please refer to Figures 2 to 4 Figures 2 to 4 , in a specific embodiment, to limit the deformation direction of the elastomer 70 in the display panel 100 under the action of the first spacer 41, the side of the second spacer 42 facing the first spacer 41 has a groove 421, and the elastomer 70 is disposed in the groove 421 and at the bottom of the groove 421. One end of the first spacer 41 facing the second spacer 42 is located in the groove 421 and abuts against the elastomer 70. There is a gap 422 between the peripheral sidewall of the first spacer 41 and the inner sidewall of the groove 421, and at least part of the liquid crystal in the liquid crystal layer 30 is located in the gap 422 and coats the peripheral sidewall of the first spacer 41.

[0043] For the display panel 100 provided in the first embodiment of the present application, a groove 421 is provided at one end of the second spacer 42 facing the first spacer 41, the elastomer 70 is disposed at the bottom of the groove 421, and one end of the first spacer 41 facing the second spacer 42 is located in the groove 421 and abuts against the elastomer 70. Moreover, there is a gap 422 between the peripheral sidewall of the first spacer 41 and the inner sidewall of the groove 421, and at least part of the liquid crystal of the liquid crystal layer 30 is located in the gap 422, that is, at least part of the liquid crystal of the liquid crystal layer 30 is located between the peripheral sidewall of the first spacer 41 and the inner sidewall of the groove 421. When the elastomer 70 is under the extrusion of the first spacer 41, the elastomer 70 is restricted by the space formed by the inner sidewall of the groove 421 and the peripheral sidewall of the first spacer 41. On the premise of coating the peripheral sidewall of the first spacer 41, the elastomer 70 will deform in the first direction towards the first substrate 10 and will not deform in other directions. Thus, the deformation of the elastomer 70 will extrude at least part of the liquid crystal in the liquid crystal layer 30 located in the gap 422 out of the gap 422, making the area change of the solid-liquid interface formed by the peripheral sidewall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30 more obvious, and further making the second capacitance C 21 change more significantly, which is beneficial to further improving the pressure sensing linearity and the fineness of the pressure sensing force gradient of the pressure sensor integrated in the display panel 100.

[0044] More specifically, in the first direction, the depth of the groove 421 is greater than the sum of the deformation height of the elastomer 70 and the height of the elastomer 70 itself to prevent the elastomer 70 from deforming outside the groove 421 during the deformation process.

[0045] More specifically, the peripheral sidewall of the elastomer 70 always remains in contact with the inner sidewall of the groove 421 to prevent the elastomer 70 from falling off the groove 421 and to make the elastomer 70 deform only in the first reverse direction under the extrusion of the first spacer 41.

[0046] It can be understood that the shape of the groove 421 includes but is not limited to a "U"-shaped groove, a "V"-shaped groove, a "凵"-shaped groove, etc., and the present application does not impose any limitation on this.

[0047] See also Figure 2 In a specific embodiment, during the movement of the first spacer 41 toward the second spacer 42, the distance between the inner sidewall of the groove 421 and the peripheral sidewall of the first spacer 41 is fixed. In other words, the radial dimension of the groove 421 remains unchanged, and the radial dimension of the first spacer 41 remains unchanged. As a result, the groove 421 and the first spacer 41 are easily processed and formed, and the manufacturing process of the display panel 100 is simpler.

[0048] See also Figure 3 In some embodiments, the radial dimension of the groove 421 remains unchanged, and the radial dimension of the first spacer 41 gradually increases from one end of the first spacer 41 of the display panel 100 toward the second spacer 42 to one end of the first spacer 41 facing away from the second spacer 42. Alternatively, the radial dimension of the first spacer 41 remains unchanged, and the radial dimension of the groove 421 gradually increases in the direction from the opening of the groove 421 of the display panel 100 to the bottom of the groove 421. Alternatively, the radial dimension of the first spacer 41 gradually increases from one end of the first spacer 41 of the display panel 100 toward the second spacer 42 to one end of the first spacer 41 facing away from the second spacer 42. Moreover, the radial dimension of the groove 421 gradually increases in the direction from the opening of the groove 421 of the display panel 100 to the bottom of the groove 421. Of course, this embodiment needs to ensure that the first spacer 41 can penetrate into the groove 421 and form a gap 422 with the inner side wall of the groove 421.

[0049] In the display panel 100 provided in the first embodiment of the present application, the radial dimension of the groove 421 remains unchanged, and the radial dimension of the first spacer 41 gradually increases from the second spacer 42 to the first spacer 41; or, the radial dimension of the first spacer 41 remains unchanged, and the radial dimension of the groove 421 gradually increases from the first spacer 41 to the second spacer 42; or, the radial dimension of the first spacer 41 gradually increases from the second spacer 42 to the first spacer 41, and the radial dimension of the groove 421 gradually increases from the first spacer 41 to the second spacer 42. Therefore, in the process of the first spacer 41 moving toward the second spacer 42 to squeeze the elastic body 70, the degree of deformation of the elastic body 70 increases as the distance the first spacer 41 moves toward the second spacer 42 increases, so that the elastic body 70 squeezes the liquid crystal of the liquid crystal layer 30 located in the gap 422 to the outside of the gap 422 faster and faster, thereby making the area of ​​the solid-liquid interface formed between the peripheral side wall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30 change faster and faster, which is conducive to further improving the second capacitor C21 The change is conducive to further improving the pressure sensing linearity of the pressure sensor integrated in the display panel 100 and the fineness of the pressure sensing force gradient.

[0050] Please refer to Figures 2 to 7 , Figure 6 which is the capacitance distribution diagram of a display panel provided in the first embodiment of the present application in the first state, Figure 7 and which is the capacitance distribution diagram of a display panel provided in the first embodiment of the present application in the second state.

[0051] In a specific embodiment, the first electrode 50 of the display panel 100 extends along the first direction, and the peripheral side wall of the first electrode 50 forms a third capacitance C with the liquid crystal of the liquid crystal layer 30 31 . The elastomer 70 is configured to change the area of the positive projection of the elastomer 70 surrounding the peripheral side wall of the first electrode 50 under the action of the first spacer 41, so as to change the third capacitance C 31 .

[0052] For the display panel 100 provided in the first embodiment of the present application, squeezing the elastomer 70 by the first spacer 41 can change the area of the positive projection of the elastomer 70 surrounding the peripheral side wall of the first electrode 50, so as to change the third capacitance C 31 . Thus, when the display panel 100 is deformed by an external force, the first spacer 41 squeezes the elastomer 70 to increase the area of the positive projection of the elastomer 70 surrounding the peripheral side wall of the first electrode 50, thereby reducing the facing area between the peripheral side wall of the first electrode 50 and the liquid crystal of the liquid crystal layer 30, so that the third capacitance C 31 changes.

[0053] Please refer to Figures 2 to 7 , in a specific embodiment, the liquid crystal of the liquid crystal layer 30 in contact with the end face of the first electrode 50 of the display panel 100 facing the second electrode 60 forms a fourth capacitance C 41 , and the magnitude of the fourth capacitance C 41 changes with the displacement amount of the first electrode 50 along the first direction towards the second electrode 60. Thus, when the display panel 100 is deformed by an external force, the first spacer 41 moves towards the second spacer 42 to squeeze the elastomer 70, so as to increase the deformation degree of the elastomer 70, and further increase the distance between the end face of the first electrode 50 facing the second electrode 60 and the liquid crystal of the liquid crystal layer 30 in contact with the elastomer 70, so that the fourth capacitance C 41 changes.

[0054] Please refer to Figure 2 and Figure 3, in a specific embodiment, the second substrate 20 is provided with a common electrode 26 and a pixel electrode 25. The common electrode 26 is disposed on the side of the second substrate 20 facing the first substrate 10, and the pixel electrode 25 is disposed at a position on the second substrate 20 away from the first substrate 10. The common electrode 26 includes a second electrode 60. In other words, when the common electrode 26 is disposed on the side of the second substrate 20 facing the first substrate 10, the common electrode 26 is common with the second electrode 60 or the common electrode 26 and the second electrode 60 are integrally formed to reduce the overall manufacturing process of the display panel 100.

[0055] It can be understood that in some other embodiments, the second substrate 20 is provided with a common electrode 26 and a pixel electrode 25. The common electrode 26 is disposed at a position on the second substrate 20 away from the first substrate 10, and the pixel electrode 25 is disposed on the side of the second substrate 20 facing the first substrate 10. The second electrode 60 is separately disposed from the pixel electrode 25 to facilitate electrical connection to the second electrode 60. The present application does not limit this.

[0056] Please refer to Figures 2 to 8 , Figure 8 is an equivalent capacitance circuit diagram of a display panel provided by the first embodiment of the present application.

[0057] In the first embodiment of the present application, the display panel 100 includes a first state and a second state. The first state is the state where the display panel 100 is not affected by an external force, and the second state is the state where the display panel 100 deforms under the action of an external force.

[0058] When the display panel 100 is in the first state, the first spacer 41 and the second spacer 42 are opposite and spaced apart along the first direction. One end of the first spacer 41 close to the second spacer 42 is located in the groove 421 of the second spacer 42. The elastomer 70 is located at the bottom of the groove 421 of the second spacer 42 and is clamped between the first spacer 41 and the second spacer 42. One side of the elastomer 70 close to the first spacer 41 is substantially in the same plane. One side of the elastomer 70 close to the first spacer 41 is substantially parallel to the end face of one end of the first spacer 41 facing the second spacer 42. The peripheral side wall of the elastomer 70 is in contact with the inner side wall of the groove 421. At this time, at least part of the liquid crystal in the liquid crystal layer 30 is located in the gap 422 formed by the inner side wall of the groove 421 and the peripheral side wall of the first spacer 41.

[0059] Thus, when the display panel 100 is in the first state, the display panel 100 has a fixed capacitance C 00 , the fixed capacitance C 00 is a capacitance that remains unchanged in the display panel 100. A first capacitance C is formed between the first electrode 50 and the second electrode 60 11, the solid-liquid interface formed between the peripheral sidewall of the first spacer 41 and the liquid crystal of the liquid crystal layer 30 constitutes the second capacitor C 21 , the third capacitor C is formed between the peripheral sidewall of the first electrode 50 and the liquid crystal of the liquid crystal layer 30 31 , the fourth capacitor C is formed between the liquid crystal of the liquid crystal layer 30 in contact with the elastomer 70 and the end face of the first electrode 50 facing the second electrode 60 41 . The first capacitor C 11 , the second capacitor C 21 , the third capacitor C 31 , the fourth capacitor C 41 and the fixed capacitor C 00 are connected in parallel, that is, the total capacitance of the display panel 100 in the first state is the sum of the first capacitor C 11 , the second capacitor C 21 , the third capacitor C 31 , the fourth capacitor C 41 and the fixed capacitor C 00 .

[0060] When the display panel 100 is deformed by an external force extrusion, the first spacer 41 moves toward the second spacer 42 along with the deformed first substrate 10. The first spacer 41 presses the elastomer 70 to cause the elastomer 70 to deform, and at least part of the liquid crystal of the liquid crystal layer 30 located in the gap 422 formed between the inner sidewall of the groove 421 and the peripheral sidewall of the first spacer 41 is pressed by the elastomer 70 out of the gap 422

[0061] When the display panel 100 is in the second state, the first spacer 41 moves toward the second spacer 42 and presses the elastomer 70. The elastomer 70 deforms, and at least part of the peripheral sidewall of the first spacer 41 is covered by the elastomer 70. At least part of the liquid crystal of the liquid crystal layer 30 located in the gap 422 is pressed by the elastomer 70 out of the gap 422. At this time, the distance between the first electrode 50 and the second electrode 60 decreases, the solid-liquid interface formed between the peripheral sidewall of the first spacer 41 and the liquid crystal of the liquid crystal layer 30 decreases, the orthographic projection of the liquid crystal of the liquid crystal layer 30 on the peripheral sidewall of the first electrode 50 decreases, and the distance between the liquid crystal of the liquid crystal layer 30 in contact with the elastomer 70 and the end face of the first electrode 50 facing the second electrode 60 increases

[0062] Thus, when the display panel 100 is in the second state, a changed first capacitor C is formed between the first electrode 50 and the second electrode 60 12 , the solid-liquid interface formed between the peripheral sidewall of the first spacer 41 and the liquid crystal of the liquid crystal layer 30 constitutes the changed second capacitor C 22 , the changed third capacitor C is formed between the peripheral sidewall of the first electrode 50 and the liquid crystal of the liquid crystal layer 30 32A changed fourth capacitor C is formed between the liquid crystal of the liquid crystal layer 30 in contact with the elastomer 70 and the end face of the first electrode 50 facing the second electrode 60. 42 The changed first capacitor C 12 The changed second capacitor C 22 The changed third capacitor C 32 The changed fourth capacitor C 42 and the fixed capacitor C 00 are connected in parallel. That is, the total capacitance of the display panel 100 in the second state is the sum of the changed first capacitor C 12 the changed second capacitor C 22 the changed third capacitor C 32 the changed fourth capacitor C 42 and the fixed capacitor C 00 .

[0063] For the display panel 100 provided in the first embodiment of the present application, the change in the total capacitance of the display panel 100 in the second state compared to the total capacitance in the first state of the display panel 100 includes the change amount of the first capacitor C 11 the change amount of the second capacitor C 21 the change amount of the third capacitor C 31 and the change amount of the fourth capacitor C 41 . This greatly increases the change amount of the total capacitance before and after the display panel 100 is deformed by force. Thus, for the display panel 100 provided in this embodiment, under the same pressure, when the first substrate 10 deforms relative to the second substrate 20, it is beneficial to increase the pressure induction gradient of the pressure sensor integrated in the display panel 100, and further improve the pressure induction linearity and the fineness of the pressure induction force gradient of the pressure sensor integrated in the display panel 100, facilitating more hierarchical settings for pressure induction of the display panel 100, improving the accuracy of pressure induction of the display panel 100, and expanding the application scenarios of the display panel 100.

[0064] Second Embodiment: Please refer to Figure 2 and Figure 9 . Figure 9 is a cross-sectional structure diagram of a display panel provided in the second embodiment of the present application.

[0065] The display panel 100 provided by the second embodiment of the present application is substantially the same as the display panel 100 provided by the first embodiment of the present application. The display panel 100 provided by the second embodiment of the present application includes a first substrate 10, a second substrate 20, a liquid crystal layer 30, auxiliary spacers 40, a first electrode 50, a second electrode 60, an elastomer 70, and main spacers 80. The difference lies in that one end of the second spacer 42 of the auxiliary spacers 40 of the display panel 100 provided by the second embodiment of the present application facing the first spacer 41 is a planar structure.

[0066] The first substrate 10 and the second substrate 20 are disposed opposite to each other and spaced apart in a first direction, and the liquid crystal layer 30 is filled between the first substrate 10 and the second substrate 20. Wherein, the first direction is the stacking direction of the first substrate 10, the liquid crystal layer 30, and the second substrate 20.

[0067] The auxiliary spacers 40 are located in the liquid crystal layer 30. The auxiliary spacers 40 include a first spacer 41 and a second spacer 42. Both the first spacer 41 and the second spacer 42 are insulators. The first spacer 41 is disposed on the side of the first substrate 10 facing the second substrate 20 and is located in the liquid crystal layer 30. The second spacer 42 is disposed on the side of the second substrate 20 facing the first substrate 10 and is located in the liquid crystal layer 30. The first spacer 41 and the second spacer 42 are disposed opposite to each other and spaced apart in the first direction.

[0068] The first electrode 50 is disposed in the first spacer 41. The second electrode 60 is disposed on the side of the second substrate 20 facing the first substrate 10. The second electrode 60 is completely sandwiched between the second spacer 42 and the second substrate 20, that is, the second spacer 42 completely covers the second electrode 60. The first electrode 50 and the second electrode 60 are disposed opposite to each other and spaced apart in the first direction, so that a first capacitor C is formed between the first electrode 50 and the second electrode 60 11 .

[0069] The elastomer 70 is disposed between the first spacer 41 and the second spacer 42. The peripheral side wall of the first spacer 41 forms a solid-liquid interface with the liquid crystal in the liquid crystal layer 30, and this solid-liquid interface forms a second capacitor C 21 , and the second capacitor C 21 is an electric double layer capacitor. The elastomer 70 is configured to change the area of the peripheral side wall of the elastomer 70 covering the first spacer 41 under the action of the first spacer 41, so as to change the area of the solid-liquid interface formed by the peripheral side wall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30, and further change the magnitude of the second capacitor C 21 .

[0070] The main spacers 80 are sandwiched between the first substrate 10 and the second substrate 20 to support the first substrate 10 and the second substrate 20.

[0071] The display panel 100 provided by the second embodiment of the present application has a liquid crystal layer 30 and auxiliary spacers 40 both sandwiched between a first substrate 10 and a second substrate 20. A first electrode 50 is disposed in a first spacer 41 of the auxiliary spacers 40, and a second electrode 60 is disposed on a side of the second substrate 20 facing the first substrate 10, and the second spacer 42 completely covers the second electrode 60.

[0072] On the one hand, the first electrode 50 and the second electrode 60 are opposite and spaced apart along a first direction to form a first capacitor C. 11 . When the first substrate 10 deforms relative to the second substrate 20, the first spacer 41 moves with the first substrate 10, causing the distance between the first electrode 50 and the second electrode 60 to change, and thus causing the first capacitor C 11 to change.

[0073] On the other hand, an elastomer 70 is disposed between the first spacer 41 and the second spacer 42. A circumferential side wall of the first spacer 41 forms a solid-liquid interface with the liquid crystal of the liquid crystal layer 30, and this solid-liquid interface forms a second capacitor C 21 , and the second capacitor C 21 is an electric double layer capacitor. When the first substrate 10 deforms relative to the second substrate 20, the first spacer 41 moves with the first substrate 10 and presses the elastomer 70, and the elastomer 70 changes the area of its circumferential side wall covering the first spacer 41 under the action of the first spacer 41, so that the area of the solid-liquid interface formed by the circumferential side wall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30 changes, that is, the facing area between the circumferential side wall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30 changes, and then the second capacitor C 21 will change in size. Since the second capacitor C 21 is an electric double layer capacitor and its capacitance is extremely large, during the process of the change in the facing area between the circumferential side wall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30, the change in the capacitance of the second capacitor C 21 is also extremely large. Thus, for the display panel 100 provided by the second embodiment of the present application, under the same pressure, when the first substrate 10 deforms relative to the second substrate 20, it is beneficial to improve the pressure induction gradient of the pressure sensor integrated in the display panel 100, and further improve the pressure induction linearity and the fineness of the pressure induction force gradient of the pressure sensor integrated in the display panel 100, facilitating more hierarchical settings of pressure induction for the display panel 100, improving the accuracy of pressure induction of the display panel 100, and expanding the application scenarios of the display panel 100.

[0074] On the other hand, one end of the second spacer 42 facing the first spacer 41 has a planar structure, making the manufacturing process of the second spacer 42 simpler and facilitating the improvement of the manufacturing efficiency of the display panel 100.

[0075] Please refer to Figure 9 , in a specific embodiment, to limit the deformation direction of the elastomer 70 in the display panel 100 under the action of the first spacer 41, along the first direction, the orthographic projection of the first spacer 41 on the elastomer 70 is completely located within the elastomer 70, and the orthographic projection of the elastomer 70 on the second spacer 42 is completely located within the second spacer 42. In other words, the area of the end face of the first spacer 41 in contact with the elastomer 70 is smaller than the area of the end face of the elastomer 70 in contact with the first spacer 41, and the area of the end face of the second spacer 42 in contact with the elastomer 70 is larger than the area of the end face of the elastomer 70 in contact with the second spacer 42.

[0076] For the display panel 100 provided in the second embodiment of the present application, the orthographic projection of the first spacer 41 on the elastomer 70 is completely located within the elastomer 70, and the orthographic projection of the elastomer 70 on the second spacer 42 is completely located within the second spacer 42. When the first spacer 41 presses the elastomer 70, the elastomer 70 will deform in the direction from the second substrate 20 towards the first substrate 10 and in the direction parallel to the second substrate 20, rather than in the direction towards the second spacer 42. Thus, under the pressing action of the first spacer 41, the elastomer 70 will cover at least part of the peripheral sidewall of the first spacer 41 to change the area of the solid-liquid interface formed between the peripheral sidewall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30, thereby causing the capacitance of the second capacitor C 21 to change.

[0077] Third Embodiment: Please refer to Figure 2 and Figure 10 , Figure 10 is a cross-sectional structure diagram of a display panel provided in the third embodiment of the present application.

[0078] The display panel 100 provided in the third embodiment of the present application is substantially the same as the display panel 100 provided in the first embodiment of the present application. The display panel 100 provided in the third embodiment of the present application includes a first substrate 10, a second substrate 20, a liquid crystal layer 30, an auxiliary spacer 40, a first electrode 50, a second electrode 60, an elastomer 70, and a main spacer 80. The difference is that the second spacer 42 is omitted from the auxiliary spacer 40 of the display panel 100 provided in the third embodiment of the present application.

[0079] The first substrate 10 and the second substrate 20 are opposite to each other and spaced apart along a first direction, and the liquid crystal layer 30 is filled between the first substrate 10 and the second substrate 20. The first direction is the stacking direction of the first substrate 10, the liquid crystal layer 30 and the second substrate 20.

[0080] The auxiliary spacer 40 is located in the liquid crystal layer 30 . The auxiliary spacer 40 includes a first spacer 41 . The first spacer 41 is an insulator. The first spacer 41 is disposed on a side of the first substrate 10 facing the second substrate 20 and is located in the liquid crystal layer 30 .

[0081] The first electrode 50 is disposed in the first spacer 41. The second electrode 60 is disposed on the side of the second substrate 20 facing the first substrate 10. The first electrode 50 and the second electrode 60 are disposed opposite to each other along a first direction and spaced apart so that a first capacitor C is formed between the first electrode 50 and the second electrode 60. 11 .

[0082] The elastic body 70 is disposed between the first spacer 41 and the second substrate 20. The elastic body 70 completely covers the second electrode 60. The peripheral side wall of the first spacer 41 forms a solid-liquid interface with the liquid crystal in the liquid crystal layer 30. The solid-liquid interface forms a second capacitor C 21 , the second capacitor C 21 The elastic body 70 is configured to change the area of ​​the peripheral side wall of the first spacer 41 covered by the elastic body 70 under the action of the first spacer 41, so as to change the area of ​​the solid-liquid interface formed by the peripheral side wall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30, thereby changing the second capacitor C 21 size.

[0083] The main spacer 80 is sandwiched between the first substrate 10 and the second substrate 20 to support the first substrate 10 and the second substrate 20 .

[0084] The display panel 100 provided in the third embodiment of the present application is sandwiched between the first substrate 10 and the second substrate 20 through the liquid crystal layer 30 and the auxiliary spacer 40, the first electrode 50 is arranged in the first spacer 41 of the auxiliary spacer 40, the second electrode 60 is arranged on the side of the second substrate 20 facing the first substrate 10, and the second spacer 42 completely covers the second electrode 60.

[0085] On the one hand, the first electrode 50 and the second electrode 60 are arranged opposite to each other and spaced apart along a first direction to form a first capacitor C 11 When the first substrate 10 is deformed relative to the second substrate 20, the first spacer 41 moves along with the first substrate 10, so that the distance between the first electrode 50 and the second electrode 60 changes, thereby causing the first capacitor C 11 changes have occurred.

[0086] On the other hand, an elastomer 70 is disposed between the first spacer 41 and the second spacer 42. The peripheral sidewall of the first spacer 41 forms a solid-liquid interface with the liquid crystal in the liquid crystal layer 30, and a second capacitor C is formed at this solid-liquid interface. 21 , and the second capacitor C 21 is an electric double layer capacitor. When the first substrate 10 deforms relative to the second substrate 20, the first spacer 41 moves along with the first substrate 10 and presses the elastomer 70. Under the action of the first spacer 41, the elastomer 70 changes the area of the peripheral sidewall of the first spacer 41 that it wraps, so that the area of the solid-liquid interface formed by the peripheral sidewall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30 changes, that is, the facing area between the peripheral sidewall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30 changes, and then the size of the second capacitor C 21 changes. Since the second capacitor C 21 is an electric double layer capacitor and its capacitance is extremely large, during the process of the change in the facing area between the peripheral sidewall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30, the change in the capacitance of the second capacitor C 21 is also extremely large. Thus, for the display panel 100 provided in the third embodiment of the present application, under the same pressure, when the first substrate 10 deforms relative to the second substrate 20, it is beneficial to increase the pressure induction gradient of the pressure sensor integrated in the display panel 100, and further improve the pressure induction linearity and the fineness of the pressure induction force gradient of the pressure sensor integrated in the display panel 100, facilitating more hierarchical settings for pressure induction of the display panel 100, improving the accuracy of pressure induction of the display panel 100, and expanding the application scenarios of the display panel 100.

[0087] On the other hand, the auxiliary spacer 40 of the display panel 100 omits the second spacer 42, making the process of the display panel 100 simpler, which is beneficial to improving the processing and manufacturing efficiency of the display panel 100 and reducing the processing cost of the display panel 100.

[0088] Please refer to Figure 10 . In a specific embodiment, to limit the deformation direction of the elastomer 70 in the display panel 100 under the action of the first spacer 41, along the first direction, the orthographic projection of the first spacer 41 on the elastomer 70 is completely located within the elastomer 70. In other words, the area of the end face of the first spacer 41 in contact with the elastomer 70 is smaller than the area of the end face of the elastomer 70 in contact with the first spacer 41.

[0089] The display panel 100 provided by the third embodiment of the present application has the orthographic projection of the first spacer 41 completely located on the elastomer 70. When the first spacer 41 presses the elastomer 70, the elastomer 70 will deform in the direction of the second substrate 20 towards the first substrate 10 and in the direction parallel to the second substrate 20. Thus, under the pressing action of the first spacer 41, the elastomer 70 will cover at least part of the peripheral sidewall of the first spacer 41 to change the area of the solid-liquid interface formed between the peripheral sidewall of the first spacer 41 and the liquid crystal in the liquid crystal layer 30, thereby causing the capacitance of the second capacitor C 21 to change.

[0090] The above are some implementation manners of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present application.

Claims

1. A display panel, characterized in that: include: a first substrate; A second substrate, opposite to and spaced from the first substrate along a first direction; A liquid crystal layer is disposed between the first substrate and the second substrate; Auxiliary spacers, including first spacers, the first spacers are arranged on a side of the first substrate facing the second substrate and are located in the liquid crystal layer; A first electrode is disposed in the first spacer; A second electrode is disposed on a side of the second substrate facing the first substrate, the first electrode and the second electrode are opposite to each other and spaced apart along the first direction to form a first capacitor; an elastic body, disposed between the first spacer and the second substrate, wherein the peripheral side wall of the first spacer and the liquid crystal in the liquid crystal layer form a second capacitor, and the second capacitor is an electric double layer capacitor; The elastic body is configured to change the area of ​​the peripheral side wall of the elastic body covering the first spacer under the action of the first spacer, so as to change the size of the second capacitor.

2. The display panel according to claim 1, wherein: The auxiliary spacer also includes a second spacer, which is arranged on the side of the second substrate facing the first substrate, and the second spacer is located in the liquid crystal layer and covers the second electrode; the first spacer and the second spacer are opposite to each other and spaced apart along the first direction, and the elastomer is arranged between the first spacer and the second spacer.

3. The display panel according to claim 2, wherein: Along the first direction, the orthographic projection of the first spacer on the elastic body is completely located on the elastic body, and the orthographic projection of the elastic body on the second spacer is completely located on the second spacer.

4. The display panel according to claim 2, wherein: The second spacer has a groove on one side facing the first spacer, the elastic body is arranged in the groove, and one end of the first spacer facing the second spacer is located in the groove and abuts against the elastic body; There is a gap between the peripheral side wall of the first spacer and the inner side wall of the groove, and at least part of the liquid crystal in the liquid crystal layer is located in the gap and covers the peripheral side wall of the first spacer.

5. The display panel according to claim 4, wherein: The radial dimension of the first spacer gradually increases from one end of the first spacer toward the second spacer to one end of the first spacer away from the second spacer; and / or the radial dimension of the groove gradually increases from the opening of the groove to the bottom of the groove.

6. The display panel according to claim 1, wherein: The first electrode extends along the first direction, and the peripheral side walls of the first electrode and the liquid crystal of the liquid crystal layer form a third capacitor; the elastomer is configured to change the area of ​​the positive projection of the peripheral side walls of the elastomer surrounding the first electrode under the action of the first spacer to change the size of the third capacitor.

7. The display panel according to claim 1, wherein: The liquid crystal of the liquid crystal layer that contacts the elastic body with the end surface of the first electrode facing the second electrode forms a fourth capacitor, and the size of the fourth capacitor changes with the displacement of the first electrode along the first direction toward the second electrode.

8. The display panel according to claim 1, wherein: The display panel also includes a main spacer, which is sandwiched between the first substrate and the second substrate; a black matrix is ​​provided in the first substrate, the main spacer and the black matrix are arranged opposite to each other along the first direction, and the auxiliary spacer and the black matrix are arranged opposite to each other along the first direction.

9. The display panel according to claim 1, wherein: The second substrate is provided with a common electrode, which is arranged on the side of the second substrate facing the first substrate, and the common electrode includes the second electrode; or, the second substrate is provided with a pixel electrode, which is arranged on the side of the second substrate facing the first substrate, and the second electrode and the pixel electrode are arranged separately.

10. A display device, characterized in that: include: A display panel as claimed in any one of claims 1 to 9.

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