A display panel and display device

Abstract

Embodiments of the present application provide a display panel and a display device. The display panel comprises a display area and a frame area surrounding the display area. The display panel comprises a first substrate and a second substrate arranged in a cell. A sealant is located in the frame area and bonded between the first substrate and the second substrate. The sealant comprises a gel and a plurality of support particles dispersed in the gel, and each support particle is supported between the first substrate and the second substrate. The support particles comprise first particles and second particles. The particle size of the first particles is greater than the particle size of the second particles. In the embodiments of the present application, two kinds of support particles with different sizes are used to reduce the stress difference caused by the thickness difference of different frame areas in the display panel, so that the first substrate and the second substrate are balanced in the frame area, and the deformation of the first substrate or the second substrate is reduced or avoided, thereby reducing or avoiding the problems of uneven display, yellowing and the like in the display area adjacent to the frame area.

Description

Technical Field

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

[0002] Cell-to-cell sealing for Liquid Crystal Display (LCD) panels is a relatively mature technology. However, as users increasingly demand narrower bezels in display devices, the area available for cell-to-cell sealing is becoming increasingly limited, placing higher demands on the LCD cell-to-cell sealing process. With the bezels around the display area of ​​LCD panels continuously shrinking, the difficulty of cell-to-cell sealing increases. If alignment errors or accidental compression occur during cell-to-cell sealing, the light emission in the display area can be affected, resulting in display defects.

[0003] It should be noted that the information in the background section of the invention is configured only to enhance the understanding of the background of the invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] This application provides a display panel and a display device, which aim to reduce or avoid problems such as uneven light emission and yellowing in the display area adjacent to the frame area, thereby improving the display effect of the display panel.

[0005] In one aspect, embodiments of this application provide a display panel, including: a display area and a frame area surrounding the display area; the display panel includes:

[0006] The first and second substrates are disposed on the box;

[0007] The sealing adhesive is located in the sealing area and is bonded between the first substrate and the second substrate;

[0008] The sealing adhesive includes: an adhesive body and a plurality of supporting particles dispersed in the adhesive body, each of the supporting particles being supported between the first substrate and the second substrate; the supporting particles include: a first particle and a second particle;

[0009] The particle size of the first particle is larger than that of the second particle.

[0010] Optionally, the first substrate in the enclosure region includes: a first segment and a second segment, wherein the first thickness of the first segment is less than the second thickness of the second segment;

[0011] The first distance between the first segment and the second substrate is greater than the second distance between the second segment and the second substrate;

[0012] The difference between the second thickness and the first thickness is equal to the difference between the first distance and the second distance.

[0013] Optionally, the first segment includes: a substrate and a first metal layer located between the substrate and the second substrate;

[0014] The second segment includes: a substrate, a first metal layer located between the substrate and the second substrate, and a second metal layer located on the side of the first metal layer away from the substrate.

[0015] Optionally, the first particle comprises: a first material;

[0016] The ratio between the second distance and the first distance is greater than the maximum compression ratio of the first material.

[0017] Optionally, the first particle comprises: a first ellipsoid and a first sphere;

[0018] The first ellipsoid is supported between the second section and the second substrate, and the first sphere is supported between the first section and the second substrate;

[0019] The short central axis of the first ellipsoid is perpendicular to the plane containing the first substrate or the second substrate;

[0020] Wherein, the sum of the lengths of the minor central axis and the major central axis of the first ellipsoid is equal to twice the diameter of the first sphere.

[0021] Optionally, the sealant bonded between the first section and the second substrate further includes: a second sphere dispersed in the sealant; the second particle includes: a third sphere;

[0022] The second sphere contacts at most one of the first segment and the second substrate;

[0023] The third sphere is supported between the second section and the second substrate;

[0024] The diameter of the second sphere is equal to the diameter of the third sphere.

[0025] Optionally, the first particle includes: a first ellipsoid and a second ellipsoid;

[0026] The first ellipsoid is supported between the first section and the second substrate, and the second ellipsoid is supported between the second section and the second substrate;

[0027] The minor central axis of the first ellipsoid and the minor central axis of the second ellipsoid are perpendicular to the plane containing the first substrate or the second substrate;

[0028] Wherein, the sum of the lengths of the minor central axis and the major central axis of the first ellipsoid is equal to the sum of the lengths of the minor central axis and the major central axis of the second ellipsoid.

[0029] Optionally, the sealant bonded between the first section and the second substrate further includes: a second sphere dispersed in the sealant; the second particle includes: a third ellipsoid;

[0030] The second sphere contacts at most one of the first segment and the second substrate;

[0031] The third ellipsoid is supported between the second section and the second substrate;

[0032] The sum of the lengths of the minor and major central axes of the third ellipsoid is equal to twice the diameter of the second sphere.

[0033] Optionally, the ratio between the number of the first particles and the number of the second particles is equal to the product of the ratio between the area of ​​the first segment and the area of ​​the second segment and a first preset coefficient.

[0034] Optionally, the first substrate further includes a third segment in the enclosure region; the third segment has a third thickness greater than the second thickness.

[0035] The third distance between the third segment and the second substrate is smaller than the second distance between the second segment and the second substrate;

[0036] The difference between the third thickness and the second thickness is equal to the difference between the second distance and the third distance;

[0037] The sealing adhesive also includes: a third particle dispersed in the adhesive;

[0038] The particle size of the third particle is smaller than that of the first particle or the second particle.

[0039] Optionally, the first particle comprises: a first material; the second particle comprises: a second material;

[0040] The maximum compression ratio of the first material is greater than the maximum compression ratio of the second material.

[0041] Optionally, the first material includes: resin; the second material includes: silicon dioxide.

[0042] Compared with the prior art, the advantages of the embodiments of this application are as follows:

[0043] Through the above embodiments, the display panel provided by this application can utilize two types of support particles of unequal size. The larger support particle supports the area with a larger sealing gap, while the two types of support particles jointly support the area with a smaller sealing gap. This reduces the stress difference caused by the thickness difference of different sealing areas in the display panel, so that the first substrate and the second substrate are subjected to balanced forces in the sealing area, reducing or avoiding deformation of the first substrate or the second substrate, thereby reducing or avoiding problems such as uneven light emission and yellowing in the display area adjacent to the frame area.

[0044] In another aspect, embodiments of this application also provide a display device, including the display panel in the above embodiments.

[0045] Compared with the prior art, the advantages of the embodiments of this application are as follows:

[0046] The display device provided in this application embodiment includes the display panel in the above embodiment and also has all the advantages of the above display panel. Attached Figure Description

[0047] The accompanying drawings are for reference and illustration only and are not intended to limit the scope of protection of this application. The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0048] Figure 1 A schematic diagram of a planar area of ​​a display panel according to one embodiment of the present application is shown;

[0049] Figure 2 A cross-sectional structural diagram of a display panel according to one embodiment of the present application is shown;

[0050] Figure 3 A cross-sectional structural schematic diagram of another display panel according to one embodiment provided in this application is shown;

[0051] Figure 4 A cross-sectional structural schematic diagram of another display panel according to one embodiment provided in this application is shown;

[0052] Figure 5 A cross-sectional structural schematic diagram of another display panel according to one embodiment provided in this application is shown;

[0053] Figure 6 A cross-sectional structural schematic diagram of another display panel according to one embodiment provided in this application is shown. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0055] Liquid crystal display (LCD) panels are generally assembled from an array substrate and a color filter substrate. In related technologies, a specific sized spacer material is incorporated into the sealing adhesive to support the sealing gap, making the structure of the TFT substrate and color filter substrate more stable. To prevent edge deformation caused by compression of the color filter or TFT substrate, the thickness of the substrates on both sides of the sealing area must be consistent to ensure equal spacing and uniform stress. However, as users increasingly demand narrower bezels in display devices, the available area for the sealing area is shrinking. With limited usable width, some circuits within the sealing area require double-layer or multi-layer circuit structures for routing. To save material costs and maintain a thinner display panel, single-layer and double-layer circuit structures often coexist in the sealing area, resulting in inconsistent thickness across the sealing region.

[0056] The inventors discovered that it is these sealing frame areas with inconsistent thicknesses that cause the sealing frame gaps to vary in size. This results in different levels of support and compression from the spacer material on both sides of the substrate. The uneven stress causes deformation at the edges of the color filter substrate or TFT substrate, which can easily lead to display problems such as uneven light emission and yellowing in local areas of the display area.

[0057] To improve this phenomenon, this application proposes a display panel and a display device, which aims to reduce the stress difference caused by the thickness difference of different frame areas in the display panel by using two support particles of different sizes, so that the first substrate and the second substrate are subjected to balanced forces in the frame area, reducing or avoiding deformation of the first substrate or the second substrate, thereby reducing or avoiding problems such as uneven light emission and yellowing in the display area adjacent to the frame area.

[0058] The embodiments of this application will now be described with reference to the accompanying drawings.

[0059] Reference Figure 1 , Figure 1 A schematic diagram of a planar area of ​​a display panel according to one embodiment of this application is shown. (Refer to...) Figure 2 , Figure 2 A cross-sectional structural diagram of a display panel according to one embodiment of this application is shown. Figure 1 and Figure 2 As shown, this application embodiment provides a display panel, including: a display area 100 and a frame area 200 surrounding the display area 100.

[0060] In the embodiments of this application, an LCD display panel is used as a reference, and the display panel may be a liquid crystal cell.

[0061] The display panel includes: a first substrate 201 and a second substrate 202 disposed in a box, and a sealing adhesive.

[0062] The first substrate 201 can be a TFT substrate, and the second substrate 202 can be a color filter substrate.

[0063] The sealing adhesive is located in the sealing area 200 and is bonded between the first substrate 201 and the second substrate 202.

[0064] Reference Figure 6 , Figure 6 A cross-sectional structural schematic diagram of another display panel according to one embodiment provided in this application is shown. For example... Figure 6 As shown, the display panel can be divided based on a plane parallel to the display surface, including a display area 100 and a non-display area surrounding the display area 100. The non-display area may include a transition area and a frame area 200 surrounding the transition area. That is, a fluid-state frame adhesive is applied around the edge of either the first substrate 201 or the second substrate 202, and cured to obtain a solid or semi-solid frame adhesive, thereby sealing the TFT substrate and the color filter substrate to achieve cell sealing of the liquid crystal cell.

[0065] The frame area can be located at the outer edge of the non-display area of ​​the display panel, thus leaving a transition area between the frame area and the display area. Due to the process error in the extrusion of the sealing glue during the box sealing process, the glue width has a certain error range. The transition area can reserve space for the glue to overflow, avoiding the glue overflowing from the frame area and thus avoiding affecting the display effect of the display area.

[0066] The sealing adhesive includes an adhesive and a plurality of support particles dispersed in the adhesive, each support particle being supported between the first substrate 201 and the second substrate 202.

[0067] In this application, support refers to contact with the supported objects on both sides respectively. This application does not limit the interaction stress between the supported objects. That is, the compressive stress between the support particles and the first substrate 201 or the second substrate 202 can be greater than 0 or equal to 0.

[0068] The supporting particles include: a first particle 210 and a second particle 220.

[0069] The particle size of the first particle 210 is larger than that of the second particle 220.

[0070] In the embodiments of this application, the support particles can take various shapes. In order to facilitate stable support and make it easier to calculate the size of the raw materials to be processed, the support particles can be ellipsoids or spheres.

[0071] The first particle 210 or the second particle 220 may each include two or more shapes.

[0072] For example, the first particle 210 may include an ellipsoid and a sphere, the second particle 220 may include an ellipsoid and a sphere, and the particle sizes of the first particle 210 and the second particle 220 may not be equal.

[0073] It should be noted that in the embodiments of this application, particle size refers to the maximum diameter of the particle. For example, the particle size of an ellipsoid is equal to the length of its major central axis.

[0074] This application takes into account that the thickness of the first substrate 201 or the second substrate 202 is not uniform everywhere. For example, in non-display areas, some areas may have more layers and a larger thickness than areas with fewer layers. This results in a difference in the size of the gap between the first substrate 201 and the second substrate 202 for encapsulation. Consequently, the first substrate 201 and the second substrate 202 are subjected to different compressive stresses from the supporting particles during the encapsulation process in the encapsulation area 200. This can easily lead to problems such as yellowing and uneven light emission in the nearby display area 100.

[0075] In view of this, the embodiments of this application provide first particles 210 and second particles 220 of unequal sizes. Larger particle sizes can support areas with larger sealing gaps, while both types of support particles can jointly support areas with smaller sealing gaps. Compared to a frame with only a single type of support particle, this effectively reduces the number of larger particle sizes. The first substrate 201 or the second substrate 202 reduces the compressive stress that compresses the support particles during manufacturing. Since forces are mutual, this reduces the reverse compression of the support particles on the first substrate 201 or the second substrate 202. Compressive stress, for example, the first substrate 201 has a greater thickness in the area where the double-layer metal is set compared to the area where the single-layer metal is set, and has a smaller sealing gap. This can more effectively reduce the reverse compressive stress of the support particles on the first substrate 201 or the second substrate 202 in the sealing frame area 200 with a smaller sealing gap, and achieve stress balance. This avoids the substrate from being deformed by compression in the area where the double-layer metal is set. By ensuring the flatness of the second substrate 202, the structural stability of the display panel can be improved, and display problems such as uneven light emission and yellowing can be prevented in the display area 100 adjacent to the area where the double-layer metal is set.

[0076] Through the above embodiments, this application can utilize two types of support particles of unequal size to reduce the stress difference caused by the thickness difference of different frame areas 200 in the display panel, so that the first substrate 201 and the second substrate 202 are subjected to balanced forces in the frame area 200, reducing or avoiding deformation of the first substrate 201 or the second substrate 202, thereby reducing or avoiding problems such as uneven light emission and yellowing in the display area 100 adjacent to the frame area.

[0077] This application provides at least two types of support particles with different shapes or sizes, including a first particle 210 and a second particle 220, which can reduce and balance stress in the frame region 200 where the frame gap is not uniform. Since the support particles have at least two shapes, stress balance can be achieved in the frame region 200 with two different frame gaps, making the frame gap match the thickness of the first substrate 201, thereby ensuring the flatness of the second substrate 202. Therefore, in an optional embodiment, this application also provides a display panel, wherein the first substrate 201 includes a first segment 300 and a second segment 400 in the frame region 200, and the first thickness of the first segment 300 is less than the second thickness of the second segment 400.

[0078] The first distance between the first segment 300 and the second substrate 202 is greater than the second distance between the second segment 400 and the second substrate 202.

[0079] The difference between the first thickness and the second thickness is equal to the difference between the first distance and the second distance.

[0080] The first substrate 201 may have circuitry disposed in the frame region 200 to realize the display driving function of the substrate. To protect the circuitry, the circuitry may be disposed between the substrate and the second substrate 202. In the display panel, when the first substrate 201 includes both a substrate and circuitry in the frame region 200, if the circuitry is disposed between the substrate and the second substrate 202, the distance difference between the first distance and the second distance may be equal to the thickness difference between the first thickness and the second thickness.

[0081] For example, when the number of circuit layers in the first section 300 is small and the first thickness is 100μm, and the number of circuit layers in the second section 400 is large and the second thickness is 100.2μm, then the first distance is 3.3μm and the second distance is 3.1μm, so as to ensure the flatness of the second substrate 202 and avoid problems such as uneven light emission and yellowing caused by substrate deformation.

[0082] Accordingly, the difference between the first distance and the second distance can be determined based on the difference between the second thickness and the first thickness.

[0083] Furthermore, in order to achieve rich functional design, reduce the overall thickness of the display panel, and save material costs, it is considered to set a single-layer circuit in the first section 300 and a double-layer circuit in the second section 400. To this end, in an optional embodiment, this application also provides a first substrate 201, wherein the first section 300 includes: a substrate and a first metal layer located between the substrate and the second substrate 202.

[0084] The second section 400 includes: a substrate, a first metal layer between the substrate and the second substrate 202, and a second metal layer located on the side of the first metal layer away from the substrate.

[0085] In this embodiment, the supporting particles can be obtained by extruding the original particles using a first substrate 201 and a second substrate 202 during the cassette assembly process. Specifically, this may include a first original particle and a second original particle.

[0086] To facilitate the manufacturing of the display panel, the first particle 210 is considered to be made of a material with elasticity or plasticity. The first particle 210 is obtained by compressing the first original spherical particle during the assembly process. Therefore, in an optional embodiment, this application also provides a first substrate 201, wherein the first particle comprises: a first material;

[0087] The ratio between the second distance and the first distance is greater than the maximum compression ratio of the first material.

[0088] For example, assuming the first distance is 3.3 μm, the second distance is 3.1 μm, and the maximum compression ratio of the first material is 90%, the ratio between the second distance and the first distance is 0.939, which is greater than the maximum compression ratio of the first material. During the encapsulation process, assuming no compression occurs between the first section and the second substrate, to achieve the corresponding second distance between the second section and the second substrate and maintain the overall thickness flatness of the display panel edge, the first original particles need to be compressed between the second section and the second substrate. The resulting first particles, as long as their compression ratio is also less than the maximum compression ratio of their material, can achieve processing and manufacturing that conforms to the material properties.

[0089] Accordingly, the ratio between the first distance and the second distance can be determined based on the maximum compression ratio of the first material of the first particle 210.

[0090] Through the above embodiments, the first particle 210 can be obtained by compressing the first original particle of the sphere during the assembly process. Since the first particle 210 supports the first substrate 201 and the second substrate 202, considering the most extreme case, assuming that the first original particle between the first section 300 and the second substrate 202 is not compressed, but the first original particle between the second section 400 and the second substrate 202 is compressed, the ratio between the short central axis of the first ellipsoid 251 and the diameter of the first sphere 261, i.e. the compression ratio of the first original particle, is less than the maximum compression ratio of the first material. This makes the processing conform to the material characteristics of the first particle 210, which facilitates the manufacturing process and maintains the structural stability of the display panel.

[0091] Reference Figure 3 , Figure 3 A cross-sectional structural schematic diagram of another display panel according to one embodiment provided in this application is shown. For example... Figure 2 and 3As shown in the embodiments of this application, the first particle 210 and the second particle 220 can be set as two spherical particles of different sizes. In the process of sealing the box with the first substrate 201 and the second substrate 202, the first particle 210 can be made from the first original particle, and the second particle 220 can be made from the second original particle. The diameter of the first original particle is larger than that of the second original particle. Because the particle size of the first original particle is larger than that of the second original particle, it has compression priority during the box extrusion process. Therefore, it can be compressed into a first ellipsoid 251 between the second section 300 and the second substrate 202. Furthermore, because the first distance between the first section 300 and the second substrate 202 is large, it can remain spherical without compression deformation. Therefore, in an optional embodiment, this application also provides a display panel, wherein the first particle 210 includes: a first ellipsoid 251 and a first sphere 261.

[0092] The first ellipsoid 251 is supported between the second section 400 and the second substrate 202, and the first sphere 261 is supported between the first section 300 and the second substrate 202.

[0093] The short central axis of the first ellipsoid 251 is perpendicular to the plane containing the first substrate 201 or the second substrate 202.

[0094] Since the first ellipsoid 251 is obtained by compressing and deforming the first original particle, only the physical shape changes. It has the same physical characteristics as the first sphere 261. Therefore, the sum of the lengths of the short central axis and the long central axis of the first ellipsoid 251 is equal to twice the diameter of the first sphere 261.

[0095] like Figure 2 and 3 As shown, by adjusting the particle size, pressure, and compression ratio of the first and second original particles, the second original particles between the second segment 400 and the second substrate 202 can be prevented from being squeezed during the assembly process, thus avoiding compression deformation. Consequently, spherical second particles 220 are obtained between the second segment 400 and the second substrate 202. Therefore, in an optional embodiment, this application also provides a display panel in which the sealing adhesive bonded between the first segment 300 and the second substrate 202 further includes second spheres 262 dispersed in the adhesive.

[0096] The second particle 220 includes: a third sphere 262.

[0097] The second sphere 262 contacts at most one of the first segment 300 and the second substrate 202.

[0098] The third sphere 262 is supported between the second section 400 and the second substrate 202.

[0099] The diameter of the second sphere 262 is equal to the diameter of the third sphere 262.

[0100] Reference Figure 4 , Figure 4 A cross-sectional structural schematic diagram of another display panel according to one embodiment of this application is shown. (Refer to...) Figure 5 , Figure 5 A cross-sectional structural schematic diagram of another display panel according to one embodiment provided in this application is shown. For example... Figure 4 and Figure 5 As shown, by adjusting the particle size, pressure, and compression ratio of the first and second original particles, the first original particles between the first section 300 and the second substrate 202 can be compressed and deformed during the casing process, resulting in an ellipsoidal first particle 210 between the second section 400 and the second substrate 202. Therefore, in an optional embodiment, this application also provides a display panel, wherein the first particle 210 includes a first ellipsoid 251 and a second ellipsoid 252.

[0101] The first ellipsoid 251 is supported between the first section 300 and the second substrate 202, and the second ellipsoid 252 is supported between the second section 400 and the second substrate 202.

[0102] The short central axis of the first ellipsoid 251 and the short central axis of the second ellipsoid 252 are perpendicular to the plane containing the first substrate 201 or the second substrate 202.

[0103] The sum of the lengths of the short central axis and the long central axis of the first ellipsoid 251 is equal to the sum of the lengths of the short central axis and the long central axis of the second ellipsoid 252.

[0104] like Figure 4 and Figure 5 As shown, by adjusting the particle size, pressure, and compression ratio of the first and second original particles, the second original particles between the first segment 300 and the second substrate 202 can be compressed and deformed during the assembly process, resulting in ellipsoidal second particles 220 between the second segment 400 and the second substrate 202. Therefore, in an optional embodiment, this application also provides a display panel, wherein the sealing adhesive bonded between the first segment 300 and the second substrate 202 further includes second spheres 262 dispersed in the adhesive.

[0105] The second sphere 262 can be obtained from the second original particle.

[0106] The second particle 220 includes: a third ellipsoid 253.

[0107] The second sphere 262 contacts at most one of the first segment 300 and the second substrate 202.

[0108] The third ellipsoid 253 is supported between the second section 400 and the second substrate 202.

[0109] Among them, the sum of the lengths of the short central axis and the long central axis of the third ellipsoid 253 is equal to twice the diameter of the second sphere 262.

[0110] In one optional implementation, the particle size of the first initial particle can be determined based on a first distance and a preset compression ratio. Specifically, if the first initial particle is a sphere, its diameter can be equal to the ratio of the first distance to the preset compression ratio.

[0111] The preset compression ratio can be less than or equal to the compression ratio of the first material.

[0112] For example, assuming the first distance is 3.3 μm, the preset compression ratio can be 90%, and the diameter of the first original particle can be 3.3 / 90% = 3.67 μm.

[0113] Furthermore, in one optional embodiment, the particle size of the second primary particle can be determined based on the particle size of the first primary particle and the difference between the first distance and the second distance. Specifically, when both the first and second primary particles are spheres, the diameter of the second primary particle can be equal to the diameter of the first primary particle minus the difference between the first distance and the second distance.

[0114] For example, assuming the first distance is 3.3 μm, the second distance is 3.1 μm, and the diameter of the first original particle is 3.7 μm, then the diameter of the second original particle can be 3.5 μm.

[0115] This application can also set the number of original particles according to the area ratio of the segments, which can be reflected in the distribution of the number of supporting particles. To this end, in an optional embodiment, this application also provides a display panel, wherein the ratio between the number of first particles 210 and the number of second particles 220 is equal to the product of the ratio between the area of ​​the first segment 300 and the area of ​​the second segment 400 and a first preset coefficient.

[0116] The first particle 210 has a larger particle size, making it more suitable for supporting areas with larger frame gaps. The frame gap of the first section 300 is a first distance, which is greater than the frame gap of the second section 400. When the area of ​​the first section 300 is larger, more first particles 210 can be considered compared to the number of second particles 220.

[0117] For example, the area ratio between the first segment 300 and the second segment 400 can be 1:1, and when the first preset coefficient is set to 1, the quantity ratio of the first particle 210 and the second particle 220 can be 1:1.

[0118] In this embodiment of the application, whether in the same segment of the first segment 300 or the second segment 400, the first compressive stress between the first particle 210 and the first substrate 201 or the second substrate 202 is greater than the second compressive stress between the second particle 220 and the first substrate 201 or the second substrate 202.

[0119] Considering the increasingly complex functional requirements of display panels, in order to maintain a narrow bezel display, more circuit layers may be set in some areas, resulting in a thicker third segment. Therefore, in one optional embodiment, this application also provides a display panel in which the first substrate 201 further includes a third segment in the frame region 200; the third segment has a third thickness greater than the second thickness.

[0120] The third distance between the third segment and the second substrate 202 is less than the second distance between the second segment 400 and the second substrate 202.

[0121] The difference between the third thickness and the second thickness is equal to the difference between the second distance and the third distance.

[0122] The sealing adhesive also includes: third particles dispersed in the adhesive.

[0123] The particle size of the third particle is smaller than that of the first particle 210 or the second particle 220.

[0124] Through the above embodiments, for more areas with different thicknesses in the frame area 200, a third particle with an additional particle size can be added to achieve a better stress balance effect and reduce display problems such as uneven light emission and yellowing in the display area 100.

[0125] Considering that the first particle 210 plays a major supporting role, support needs to be provided in various sections of the frame area 200. Since the first particle 210 is obtained by compressing a first original particle, it needs to have a stronger compressive deformation capacity compared to the second original particle used to make the second particle 220. Therefore, in an optional embodiment, this application also provides a display panel, wherein the first particle 210 comprises a first material, and the second particle 220 comprises a second material.

[0126] The maximum compression ratio of the first material is greater than that of the second material.

[0127] Furthermore, in an optional embodiment, the material of the first particle 210 includes resin. The material of the second particle 220 includes silicon dioxide.

[0128] Specifically, the material of the first particle 210 can be epoxy resin or polyester resin, and the material of the second particle 220 can be silica gel or plexiglass.

[0129] Based on the same inventive concept, this application also provides a display device, including the display panel in the above embodiments.

[0130] Preferably, the display panel may include a liquid crystal display (LCD) panel.

[0131] Specifically, display devices may include display modules, smartwatches, mobile phones, tablets, VR device display screens, or computer monitors, etc.

[0132] Based on the same inventive concept, this application also provides a display device, which includes the display apparatus in the above embodiments.

[0133] As the product embodiments are basically similar to the device embodiments, the description is relatively simple, and relevant parts can be found in the description of the device embodiments.

[0134] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0135] It should be noted that, unless otherwise expressly specified and limited, the accompanying drawings in this application specification are for illustrative purposes only and to aid understanding, and the dimensions in the drawings shall not be construed as limiting the content of this application.

[0136] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0137] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are configured for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0138] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0139] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0140] In this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes that element.

[0141] Finally, it should be noted that specific examples have been used in this document to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are merely configured to help understand the technical solutions and core ideas of this application. Although preferred embodiments of this application have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of this application.

Claims

1. A display panel, characterized in that, include: The display area and the framed area surrounding the display area; The display panel includes: The first and second substrates are disposed on the box; The sealing adhesive is located in the sealing area and is bonded between the first substrate and the second substrate; The sealing adhesive includes: an adhesive body and a plurality of supporting particles dispersed in the adhesive body, each of the supporting particles being supported between the first substrate and the second substrate; the supporting particles include: a first particle and a second particle; Wherein, the particle size of the first particle is larger than that of the second particle, the first particle supports the area with a larger sealing gap, and the first particle and the second particle jointly support the area with a smaller sealing gap; the first substrate in the sealing frame area includes: a first segment with a single-layer circuit and a second segment with a double-layer circuit, the first thickness of the first segment is smaller than the second thickness of the second segment; the first segment includes: a substrate and a first metal layer located between the substrate and the second substrate; the second segment includes: a substrate, a first metal layer located between the substrate and the second substrate, and a second metal layer located on the side of the first metal layer away from the substrate, the ratio between the number of the first particles and the number of the second particles is equal to the product of the ratio between the area of ​​the first segment and the area of ​​the second segment and a first preset coefficient.

2. The display panel according to claim 1, characterized in that, The first distance between the first segment and the second substrate is greater than the second distance between the second segment and the second substrate; The difference between the second thickness and the first thickness is equal to the difference between the first distance and the second distance.

3. The display panel according to claim 2, characterized in that, The first particle comprises: a first material; The ratio between the second distance and the first distance is greater than the maximum compression ratio of the first material.

4. The display panel according to claim 3, characterized in that, The first particle comprises: a first ellipsoid and a first sphere; The first ellipsoid is supported between the second section and the second substrate, and the first sphere is supported between the first section and the second substrate; The short central axis of the first ellipsoid is perpendicular to the plane containing the first substrate or the second substrate; Wherein, the sum of the lengths of the minor central axis and the major central axis of the first ellipsoid is equal to twice the diameter of the first sphere.

5. The display panel according to claim 4, characterized in that, The sealing adhesive bonded between the first section and the second substrate further includes: a second sphere dispersed in the adhesive; the second particle includes: a third sphere; The second sphere contacts at most one of the first segment and the second substrate; The third sphere is supported between the second section and the second substrate; The diameter of the second sphere is equal to the diameter of the third sphere.

6. The display panel according to claim 3, characterized in that, The first particle comprises: a first ellipsoid and a second ellipsoid; The first ellipsoid is supported between the first section and the second substrate, and the second ellipsoid is supported between the second section and the second substrate; The minor central axis of the first ellipsoid and the minor central axis of the second ellipsoid are perpendicular to the plane containing the first substrate or the second substrate; Wherein, the sum of the lengths of the minor central axis and the major central axis of the first ellipsoid is equal to the sum of the lengths of the minor central axis and the major central axis of the second ellipsoid.

7. The display panel according to claim 6, characterized in that, The sealing adhesive bonded between the first section and the second substrate further includes: a second sphere dispersed in the adhesive; the second particle includes: a third ellipsoid; The second sphere contacts at most one of the first segment and the second substrate; The third ellipsoid is supported between the second section and the second substrate; The sum of the lengths of the minor and major central axes of the third ellipsoid is equal to twice the diameter of the second sphere.

8. The display panel according to claim 2, characterized in that, The first substrate further includes a third segment in the enclosure region; the third segment has a third thickness greater than the second thickness. The third distance between the third segment and the second substrate is smaller than the second distance between the second segment and the second substrate; The difference between the third thickness and the second thickness is equal to the difference between the second distance and the third distance; The sealing adhesive also includes: a third particle dispersed in the adhesive; The particle size of the third particle is smaller than that of the first particle or the second particle.

9. The display panel according to any one of claims 1 to 8, characterized in that, The first particle comprises: a first material; the second particle comprises: a second material; The maximum compression ratio of the first material is greater than the maximum compression ratio of the second material.

10. The display panel according to claim 9, characterized in that, The first material includes: resin; the second material includes: silicon dioxide.

11. A display device, comprising: The display panel as described in any one of claims 1 to 10.

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