Display panel and display device

Abstract

The present application provides a display panel and a display device, wherein the display panel comprises a first substrate, a second substrate and a sealing glue which are arranged relatively to each other, wherein conductive particles are arranged in the sealing glue, wherein the conductive particles comprise base material microspheres and a conductive layer arranged on the outer surface of the base material microspheres, wherein the conductive layer wraps the base material microspheres, and the base material microspheres comprise an elastic base material and a color-developing material, wherein the color-developing material is configured to make the base material microspheres present different color development conditions according to different pressures to which the conductive particles are subjected; the present application can make the base material microspheres in the conductive particles develop color by arranging the color-developing material in the conductive particles, and when the conductive particles are subjected to pressure so that the conductive layer of the conductive particles is partially cracked, part of the base material microspheres is exposed, and whether the particle size of the conductive particles is appropriate can be intuitively confirmed according to the color development conditions of the exposed base material microspheres, so as to alleviate the problem of short circuit or explosion caused by the conductive particles piercing the film layer on the display panel due to the excessively large particle size of the conductive particles.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] Liquid Crystal Display (LCD) panels usually include an array substrate and a color filter substrate that are arranged opposite to each other, and a liquid crystal layer located between the array substrate and the color filter substrate. The array substrate and the color filter substrate transmit electrical signals through conductive particles. After the array substrate and the color filter substrate are vacuum-bonded, the conductive particles are in a compressed state. Selecting conductive particles with a suitable particle size is crucial for liquid crystal display panels. For example, when the particle size of the conductive particles is large, the degree of compression of the conductive particles is too large, which will puncture the film layer on the array substrate and / or the color filter substrate, causing short circuit or explosion, or even causing water vapor intrusion. Summary of the invention

[0003] The present application provides a display panel and a display device to alleviate the technical problem that conductive particles in existing display panels are too large in size and thus pierce a film layer on the display panel, causing a short circuit or explosion.

[0004] To solve the above problems, the technical solutions provided by this application are as follows:

[0005] An embodiment of the present application provides a display panel, comprising:

[0006] a first substrate;

[0007] a second substrate, arranged opposite to the first substrate;

[0008] A frame sealant is disposed between the first substrate and the second substrate, and the frame sealant is located at an edge region of the first substrate and the second substrate;

[0009] Conductive particles are disposed in the frame sealant, and the conductive particles include:

[0010] Base material microspheres, including an elastic base material and a color developing material;

[0011] A conductive layer is disposed on the outer surface of the base microspheres, and the conductive layer wraps the base microspheres;

[0012] Wherein, the color-developing material is configured to make the base material microspheres present different color development conditions according to the different pressures applied to the conductive particles.

[0013] In the display panel provided in the embodiment of the present application, the interior of the elastic substrate is a polymer network structure, and the color-developing material is dispersed in the polymer network structure; the elastic substrate includes one or more materials selected from epoxy resin, polyester, polyurethane, polyamide, polyvinyl chloride, phenolic, polyethylene, polystyrene, and polypropylene.

[0014] In the display panel provided in the embodiment of the present application, the color-developing material is disposed on the outer surface of the elastic substrate to form a color-developing layer, and the color-developing layer wraps or semi-wraps the elastic substrate.

[0015] In the display panel provided in the embodiment of the present application, the color development layer is arranged in a mesh shape or a stripe shape.

[0016] In the display panel provided in the embodiment of the present application, the conductive layer includes a first sublayer wrapping the substrate microspheres and a second sublayer wrapping the first sublayer, the first sublayer includes a nickel layer, and the second sublayer includes a gold layer.

[0017] In the display panel provided in the embodiment of the present application, the conductive particles are in a compressed state, and the compression rate of the conductive particles ranges from 65% to 90%.

[0018] In the display panel provided in the embodiment of the present application, cracks are formed on the conductive layer, the cracks expose a portion of the substrate microspheres, and the percentage of the area of ​​the cracks to the area of ​​the conductive layer is less than or equal to 10%.

[0019] In the display panel provided in the embodiment of the present application, the color-developing material includes a piezochromic material, and the piezochromic material includes zinc complexes and carbazoles; the base material microspheres present different color-developing conditions including the color displayed by the base material microspheres exposed by the cracks and / or the area of ​​the displayed color.

[0020] In the display panel provided in the embodiment of the present application, the color-developing material includes a fluorescent material, and the fluorescent material includes rhodamine, coumarin, and pyrazoline; the base material microspheres present different color-developing conditions including the area of ​​the base material microspheres displaying color exposed by the cracks.

[0021] An embodiment of the present application further provides a display device, which includes the display panel of one of the aforementioned embodiments.

[0022] The beneficial effects of the present application are as follows: in the display panel and the display device provided by the present application, the display panel includes a first substrate and a second substrate arranged relatively to each other and a frame sealant arranged between the first substrate and the second substrate, conductive particles are arranged in the frame sealant, the conductive particles include base material microspheres and a conductive layer arranged on the outer surface of the base material microspheres, the conductive layer wraps the base material microspheres, the base material microspheres include an elastic base material and a color-developing material, the color-developing material is configured to make the base material microspheres present different color development conditions according to the different pressures on the conductive particles; the present application can make the base material microspheres in the conductive particles develop color by arranging the color-developing material in the conductive particles, when the conductive particles are subjected to pressure to partially crack the conductive layer of the conductive particles, part of the base material microspheres are exposed, and whether the particle size of the conductive particles is appropriate can be intuitively confirmed according to the color development conditions of the exposed base material microspheres, so that the conductive particles can be prevented from piercing the film layer on the display panel due to the excessively large particle size, causing short circuit or explosion damage, thereby improving the technical problem of the existing display panels that the conductive particles pierce the film layer on the display panel due to the excessively large particle size. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of a cross-sectional structure of a display panel provided in an embodiment of the present application.

[0025] Figure 2 for Figure 1 A detailed structural diagram of the conductive particles in the device.

[0026] Figure 3 for Figure 1 Another detailed structural diagram of the conductive particles.

[0027] Figure 4 for Figure 3 Schematic diagram of a planar structure of medium-based microspheres.

[0028] Figure 5 A schematic flow chart of a method for determining the particle size of conductive particles provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The following descriptions of the embodiments are with reference to the attached diagrams to illustrate specific embodiments that the present application can be implemented in. The directional terms mentioned in the present application, such as [up], [down], [front], [back], [left], [right], [inside], [outside], [side], etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present application, rather than to limit the present application. In the figures, units with similar structures are represented by the same reference numerals. In the accompanying drawings, the thickness of some layers and regions is exaggerated for clear understanding and ease of description. That is, the size and thickness of each component shown in the drawings are arbitrarily shown, but the present application is not limited to this.

[0030] Please refer to Figure 1 and Figure 2 , Figure 1 A schematic diagram of a cross-sectional structure of a display panel provided in an embodiment of the present application, Figure 2 for Figure 1 A detailed structural diagram of the conductive particles in the Figure 1 , the display panel 1000 includes a liquid crystal display panel, etc., the display panel 1000 includes a first substrate 200 and a second substrate 300 arranged opposite to each other, and a sealant 400 arranged between the first substrate 200 and the second substrate 300, and the sealant 400 is located at the edge area of ​​the first substrate 200 and the second substrate 300. Optionally, the first substrate 200 is an array substrate, the second substrate 300 is a color film substrate, the first substrate 200 includes a first substrate 201 and a first electrode 202 arranged on the first substrate 201, and the second substrate 300 includes a second substrate 301 and a second electrode 302 arranged on the second substrate 301. Of course, the display panel 1000 also includes a liquid crystal layer 500 located between the first substrate 200 and the second substrate 300, and the sealant 400 surrounds the liquid crystal layer 500.

[0031] The display panel 1000 also includes conductive particles 100 disposed in the frame sealant 400, the conductive particles 100 include substrate microspheres 10 and a conductive layer 20 disposed on the outer surface of the substrate microspheres 10, the conductive layer 20 wraps the substrate microspheres 10, the substrate microspheres 10 include an elastic substrate 11 and a color-developing material 12 dispersed in the elastic substrate 11 or disposed on the outer surface of the elastic substrate 11, the color-developing material 12 is configured to make the substrate microspheres 10 present different color conditions according to the different pressures applied to the conductive particles 100.

[0032] The present application can make the base microspheres 10 in the conductive particles 100 develop color by setting a coloring material 12 in the conductive particles 100. When the conductive particles 100 are subjected to pressure to partially crack the conductive layer 20 of the conductive particles 100, part of the base microspheres 10 are exposed. According to the coloring of the exposed base microspheres 10, it can be intuitively confirmed whether the particle size of the conductive particles 100 is appropriate. In this way, it can be avoided that the conductive particles pierce the film layer on the display panel due to the large particle size of the conductive particles, causing short circuit or explosion, thereby improving the technical problem of the existing display panels that the conductive particles pierce the film layer on the display panel due to the large particle size of the conductive particles, causing short circuit or explosion.

[0033] Specifically, the substrate microsphere 10 is spherical. The elastic substrate 11 in the substrate microsphere 10 is compressible and resilient, for example, the elastic substrate 11 includes one or more materials such as epoxy resin, polyester, polyurethane, polyamide, polyvinyl chloride, phenolic, polyethylene, polystyrene, polypropylene, etc. The interior of the elastic substrate 11 is a polymer network structure, and the color-developing material 12 is dispersed in the polymer network structure. Specifically, the color-developing material 12 can be mixed in the original substrate of the elastic substrate 11, and the original substrate is subjected to a free radical polymerization reaction to form the elastic substrate 11 with a polymer network structure, so that the color-developing material 12 is dispersed in the polymer network structure.

[0034] The color-developing material 12 includes a material with color-developing properties such as a piezochromic material or a fluorescent material. Among them, when the color-developing material 12 is a piezochromic material, it may include zinc complexes, carbazoles, etc.; when the color-developing material 12 is a fluorescent material, it may include rhodamine, coumarin, pyrazoline, etc. Optionally, taking the color-developing material 12 as rhodamine and the elastic substrate 11 as polystyrene as an example, the substrate microspheres can be formed by the following steps: rhodamine is uniformly mixed in styrene, an initiator (such as a thermal initiator, a photoinitiator) is added to the styrene to perform free radical polymerization under UV light or above 60°C, and polystyrene with a network structure is formed after polymerization, and rhodamine is also uniformly distributed in the polymer network structure.

[0035] The conductive layer 20 is disposed on the outer surface of the substrate microsphere 10. The conductive layer 20 includes a first sublayer 21 wrapping the substrate microsphere 10 and a second sublayer 22 wrapping the first sublayer 21, wherein the first sublayer 21 includes a nickel layer and the second sublayer 22 includes a gold layer. A plurality of thorn-like protrusions 211 are disposed on the outer surface of the conductive layer 20. Specifically, the outer surface of the first sublayer 21 and the outer surface of the second sublayer 22 are both provided with thorn-like protrusions 211, and the thorn-like protrusions 211 on the outer surface of the first sublayer 21 are disposed correspondingly to the thorn-like protrusions 211 on the outer surface of the second sublayer 22. The thorn-like protrusions 211 on the conductive layer 20 can make the sealant 400 easy to discharge and also easy to break through the colloid, so that the first substrate 200 and the second substrate 300 are connected through the conductive particles 100.

[0036] The conductive particles 100 are in a compressed state between the first substrate 200 and the second substrate 300, and the compression rate of the conductive particles ranges from 65% to 90%, such as 65%, 70%, 75%, 80%, 85%, 90%, etc. The compression rate of the conductive particles 100 refers to the percentage of the particle size of the conductive particles 100 after being compressed to the particle size of the conductive particles 100 before being compressed in the direction of the pressure on the conductive particles 100. For example, when pressure is applied to the first substrate 200 or the second substrate 300, the direction of the pressure is perpendicular to the plane where the first substrate 200 and the plane where the second substrate 300 are located. The first substrate 200 and the second substrate 300 must maintain a box thickness distance of 7.5 microns. The particle size of the conductive particles 100 before compression is 10 microns. When the particle size of the conductive particles 100 after being compressed is the same as the box thickness distance, which is also 7.5 microns, the compression rate of the conductive particles 100 is 75%.

[0037] Further, when the compression degree of the conductive particle 100 reaches a certain range, the conductive layer 20 of the conductive particle 100 will break to form cracks, and the cracks expose the part of the substrate microsphere 10 covered by the conductive layer 20. The percentage of the area of ​​the crack to the area of ​​the conductive layer 20 is less than or equal to 10%, that is, the percentage of the rupture area of ​​the conductive layer 20 to the total area of ​​the conductive layer 20 is less than or equal to 10%. When the percentage of the rupture area of ​​the conductive layer 20 to the total area of ​​the conductive layer 20 is greater than 10%, the thorn-like protrusions 211 on the outer surface of the conductive particle 100 will pierce the first electrode 202 and / or the second electrode 302, thereby causing a short circuit or explosion.

[0038] Specifically, in the process of manufacturing the display panel 1000, when the color-developing material 12 is a piezochromic material, when the conductive particle 100 is subjected to external pressure, the base microsphere 10 inside the conductive particle 100 undergoes elastic deformation, and the conductive particle 100 is compressed; when the degree of compression reaches a certain range, the conductive layer 20 of the conductive particle 100 breaks to expose a portion of the base microsphere 10 covered by the conductive layer 20, and because the base microsphere 10 is provided with the piezochromic material, the piezochromic material displays different colors under different pressures, and the color displayed by the piezochromic material is the desired color. The color presented by the substrate microsphere 10, so that the substrate microsphere 10 can present the corresponding color through the cracks of the conductive layer 20, that is, the piezochromic material can make the substrate microsphere 10 present different color according to the different pressures on the conductive particles 100. The different color presentations of the substrate microsphere 10 include the color displayed by the substrate microsphere 10 exposed by the crack and / or the area of ​​the color displayed. Based on this, the compression degree of the conductive particles 100 can be determined according to the color displayed by the substrate microsphere 10 exposed by the crack and / or the area of ​​the color displayed, and then whether the particle size of the conductive particles 100 is appropriate can be determined.

[0039] More specifically, when the conductive particle 100 is subjected to pressure in a first interval, the piezochromic material displays a first color; when the conductive particle 100 is subjected to pressure in a second interval, the piezochromic material displays a second color. The pressure in the first interval is less than the pressure in the second interval, and the first color is different from the second color. When the piezochromic material is set to display the first color, the particle size of the conductive particle 100 is appropriate, and when the piezochromic material displays the second color, it is determined that the particle size of the conductive particle 100 is too large. For example, when the conductive particles 100 need to conduct the first substrate 200 and the second substrate 300 at a fixed interval, when the pressure of the first interval is applied to the first substrate 200 or the second substrate 300, the conductive layer 20 of the conductive particles 100 is broken, and the first color displayed by the piezochromic material is revealed through the cracks of the conductive layer 20; when the pressure of the second interval is applied to the first substrate 200 or the second substrate 300, the conductive layer 20 of the conductive particles 100 is broken, and the second color displayed by the piezochromic material is revealed through the cracks of the conductive layer 20. If the piezochromic material displays the second color, it can be determined that the particle size of the conductive particles 100 is large.

[0040] Correspondingly, when the color-developing material 12 is a fluorescent material, when the conductive particle 100 is subjected to external pressure, the base microsphere 10 inside the conductive particle 100 will undergo elastic deformation, and the conductive particle 100 will be compressed; when the compression degree reaches a certain range, the conductive layer 20 of the conductive particle 100 will rupture to expose the part of the base microsphere 10 covered by the conductive layer 20, and the base microsphere 10 is provided with the fluorescent material, and the fluorescent material will display the corresponding color, and different fluorescent materials display different colors, and the color displayed by the fluorescent material is the color displayed by the fluorescent material. The color presented by the substrate microsphere 10, in this way, the substrate microsphere 10 can present corresponding color conditions through the cracks of the conductive layer 20, that is, the fluorescent material can make the substrate microsphere 10 present different color conditions according to the different pressures on the conductive particles 100. The different color conditions presented by the substrate microsphere 10 include the area of ​​the substrate microsphere 10 exposed by the cracks showing the color. Based on this, the compression degree of the conductive particles 100 can be determined according to the area of ​​the substrate microsphere 10 exposed by the cracks showing the color, and then it can be determined whether the particle size of the conductive particles 100 is appropriate.

[0041] More specifically, when the conductive particle 100 is subjected to pressure in the first interval, the area of ​​the substrate microsphere 10 exposed by the cracks of the conductive layer 20 is the first area; when the conductive particle 100 is subjected to pressure in the second interval, the area of ​​the substrate microsphere 10 exposed by the cracks of the conductive layer 20 is the second area. The pressure in the first interval is less than the pressure in the second interval, and the first area is less than the second area. The greater the pressure on the conductive particle 100, the greater the degree of compression of the conductive particle 100, and the correspondingly larger the crack area of ​​the conductive layer 20, and the larger the area of ​​the substrate microsphere 10 exposed by the cracks of the conductive layer 20. When the area of ​​the substrate microsphere 10 exposed by the cracks of the conductive layer 20 is set to the first area, the particle size of the conductive particle 100 is appropriate, and when the area of ​​the substrate microsphere 10 exposed by the cracks of the conductive layer 20 is the second area, it is determined that the particle size of the conductive particle 100 is too large.

[0042] In one embodiment, referring to Figures 1 to 4 , Figure 3 for Figure 1 Another detailed structural diagram of the conductive particle 100 is shown in FIG. Figure 4 for Figure 3 A schematic diagram of the planar structure of the substrate microsphere. Figure 3, which is different from the above embodiment, the color developing material is arranged on the outer surface of the elastic substrate 11 to form a color developing layer 121. Optionally, the color developing layer 121 can be formed by arranging the color developing material on the outer surface of the elastic substrate 11 by wrapping, adsorption, printing, screen printing, electroplating, etc. The color developing layer 121 wraps or half wraps the elastic substrate 11. Optionally, the color developing layer 121 is arranged in a mesh or stripe shape, for example Figure 4 The color development layer 121 shown in (a) is arranged in a stripe shape; Figure 4 The color development layer 121 shown in (b) is arranged in a mesh shape.

[0043] In this embodiment, a color developing layer 121 is formed by arranging a color developing material on the outer surface of the elastic substrate 11. The color developing layer 121 can display color, and the color displayed by the color developing layer 121 is the color presented by the substrate microsphere 10. In this way, the substrate microsphere 10 can present a corresponding color development through the cracks of the conductive layer 20, that is, the color developing layer 121 can make the substrate microsphere 10 present different color development according to the different pressures on the conductive particles 100. For other descriptions, please refer to the above embodiment, which will not be repeated here.

[0044] Based on the same inventive concept, the present application also provides a method for determining the particle size of conductive particles in a display panel manufacturing process, please refer to Figures 1 to 5 , Figure 5 A schematic flow chart of a method for determining the particle size of conductive particles in a display panel manufacturing process provided by an embodiment of the present application. Figure 5 The method for determining the particle size of conductive particles in the display panel manufacturing process includes the following steps:

[0045] S601: providing a sealant 400, and doping the conductive particles 100 into the sealant 400;

[0046] Specifically, when the color-developing material 12 in the conductive particle 100 is a piezochromic material, the piezochromic material is added to the original substrate of the elastic substrate 11, and the original substrate is subjected to a free radical polymerization reaction to form the elastic substrate 11 in a polymer network structure, and the piezochromic material is dispersed in the polymer network structure to prepare a substrate microsphere 10 added with a piezochromic material, and then the surface of the substrate microsphere 10 is plated with electroless nickel and then gold-plated to form a conductive layer 20, thereby forming the conductive particle 100; or, the piezochromic material is arranged on the outer surface of the elastic substrate 11 by wrapping, adsorption, printing, screen printing, electroplating, etc., and the piezochromic material can be in the form of full wrapping, half wrapping, etc., and then the outer surface of the piezochromic material is plated with electroless nickel and then gold-plated to form a conductive layer 20, thereby forming the conductive particle 100. When the color-developing material 12 in the conductive particle 100 is a fluorescent material, the preparation method of the conductive particle 100 can be the same as the preparation method when the color-developing material 12 is a piezochromic material.

[0047] S602: providing a first substrate 200 , and disposing the frame sealant 400 doped with the conductive particles 100 at an edge region of the first substrate 200 ;

[0048] S603: providing a second substrate 300, and aligning and pressing the second substrate 300 and the first substrate 200;

[0049] S604: obtaining the color development of the color development material 12 in the conductive particles 100 after the first substrate 200 and the second substrate 300 are aligned and pressed together;

[0050] S605 : Determine the particle size of the conductive particles 100 according to the color development of the color development material 12 .

[0051] Specifically, when the color-developing material 12 includes a piezochromic material, obtaining the color development of the color-developing material 12 in the conductive particle 100 after the first substrate 200 and the second substrate 300 are aligned and pressed together includes obtaining the color change and / or the change of the exposed area of ​​the color-developing material 12. Specifically, when the color-developing material 12 is a piezochromic material, when the conductive particle 100 is subjected to external pressure, the base material microsphere 10 inside the conductive particle 100 will undergo elastic deformation, and the conductive particle 100 will be compressed; when the degree of compression reaches a certain range, the conductive layer 20 of the conductive particle 100 will rupture to expose the base material microsphere 10 covered by the conductive layer 20, and at this time, the color of the piezochromic material in the base material microsphere 10 will be revealed through the cracks in the conductive layer 20, and accordingly, the color change of the piezochromic material can be obtained. The degree of compression of the conductive particle 100 can be determined by measuring the area of ​​color change of the conductive layer 20 or the color change of the conductive layer 20, and then determining whether the particle size of the conductive particle 100 is appropriate. For example, if the percentage of the area of ​​the conductive layer 20 exposed by the cracks of the conductive layer 20 to the total area of ​​the conductive layer 20 is less than or equal to 10%, then the particle size of the conductive particle 100 is appropriate; if the percentage of the area of ​​the conductive layer 20 exposed by the cracks of the conductive layer 20 to the total area of ​​the conductive layer 20 is greater than 10%, then the particle size of the conductive particle 100 is too large.

[0052] When the color-developing material 12 includes a fluorescent material, obtaining the color-developing condition of the color-developing material 12 in the conductive particle 100 after the first substrate 200 and the second substrate 300 are aligned and pressed together includes obtaining the change in the exposed area of ​​the color-developing material 12. Specifically, when the color-developing material 12 is a fluorescent material, when the conductive particle 100 is subjected to external pressure, the base microsphere 10 inside the conductive particle 100 will undergo elastic deformation, and the conductive particle 100 will be compressed; when the degree of compression reaches a certain range, the conductive layer 20 of the conductive particle 100 will rupture to expose the base microsphere 10 covered by the conductive layer 20, and the color of the fluorescent material in the base microsphere 10 will be revealed through the cracks in the conductive layer 20, and the color of the fluorescent material can be determined based on the color of the fluorescent material. The color change or the area of ​​the color change of the fluorescent material can be used to determine the compression degree of the conductive particle 100, and then determine whether the particle size of the conductive particle 100 is appropriate. For example, if the percentage of the area of ​​the fluorescent material exposed by the cracks of the conductive layer 20 to the total area of ​​the fluorescent material is less than or equal to 10%, then the particle size of the conductive particle 100 is appropriate; if the percentage of the area of ​​the fluorescent material exposed by the cracks of the conductive layer 20 to the total area of ​​the fluorescent material is greater than 10%, then the particle size of the conductive particle 100 is too large.

[0053] Based on the same inventive concept, the present application also provides a display device, which includes a display panel of one of the aforementioned embodiments.

[0054] According to the above embodiments, it can be seen that:

[0055] In a display panel and a display device provided by the present application, the display panel includes a first substrate and a second substrate arranged opposite to each other and a sealant arranged between the first substrate and the second substrate, conductive particles are arranged in the sealant, the conductive particles include base material microspheres and a conductive layer arranged on the outer surface of the base material microspheres, the conductive layer wraps the base material microspheres, the base material microspheres include an elastic base material and a color-developing material dispersed in the elastic base material or arranged on the outer surface of the elastic base material, the color-developing material is configured to make the base material microspheres present different color development conditions according to different pressures applied to the conductive particles; the present application can make the base material microspheres in the conductive particles develop color by arranging the color-developing material in the conductive particles, when the conductive particles are subjected to pressure to partially crack the conductive layer of the conductive particles, part of the base material microspheres are exposed, and whether the particle size of the conductive particles is appropriate can be intuitively confirmed according to the color development conditions of the exposed base material microspheres, so that the conductive particles can be prevented from piercing the film layer on the display panel due to the excessively large particle size, causing short circuit or explosion, thereby improving the technical problem of the existing display panels that the conductive particles pierce the film layer on the display panel due to the excessively large particle size, causing short circuit or explosion.

[0056] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0057] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, characterized in that: include: a first substrate; a second substrate, arranged opposite to the first substrate; A frame sealant is disposed between the first substrate and the second substrate, and the frame sealant is located at an edge region of the first substrate and the second substrate; as well as Conductive particles are disposed in the frame sealant, and the conductive particles include: The substrate microspheres include an elastic substrate and a color developing material, wherein the color developing material is disposed on the outer surface of the elastic substrate to form a color developing layer; and A conductive layer is disposed on the outer surface of the substrate microsphere, the conductive layer wraps the substrate microsphere, and the conductive layer is configured so that when the conductive particles are subjected to external pressure, the conductive layer of the conductive particles will break to form cracks, and the cracks expose part of the substrate microsphere; Wherein, the color-developing material includes a piezochromic material, and the color-developing material is configured to make the base microspheres present different color conditions according to the different pressures applied to the conductive particles. The different color conditions presented by the base microspheres include the color displayed by the base microspheres exposed by the cracks.

2. The display panel according to claim 1, characterized in that: The elastic substrate includes one or more materials selected from epoxy resin, polyester, polyurethane, polyamide, polyvinyl chloride, phenolic resin, polyethylene, polystyrene, and polypropylene. The interior of the elastic substrate presents a polymer network structure, and the color-developing material is dispersed in the polymer network structure.

3. The display panel according to claim 1, characterized in that: The color development layer wraps or semi-wraps the elastic substrate.

4. The display panel according to claim 3, characterized in that: The color development layer is arranged in a mesh or stripe shape.

5. The display panel according to claim 1, characterized in that: The conductive layer includes a first sublayer wrapping the substrate microspheres and a second sublayer wrapping the first sublayer, the first sublayer includes a nickel layer, and the second sublayer includes a gold layer.

6. The display panel according to any one of claims 1 to 5, characterized in that: The conductive particles are in a compressed state, and a compression rate of the conductive particles ranges from 65% to 90%.

7. The display panel according to claim 1, characterized in that: The percentage of the area of ​​the crack to the area of ​​the conductive layer is less than or equal to 10%.

8. The display panel according to claim 1, characterized in that: The piezochromic materials include zinc complexes and carbazoles.

9. A display device, characterized in that: A display panel comprising any one of claims 1 to 8.

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