Display panel and display device

Abstract

The application is suitable for the technical field of display, and provides a display panel and a display device. The display panel comprises a first substrate, a binding electrode, a binding wire and an elastic sealing ring. The first substrate comprises a binding area, and the binding electrode is arranged in the binding area. The binding wire comprises a conductive layer and a first protective layer which are arranged in layers. A through hole is formed in the first protective layer to expose part of the conductive layer. The exposed conductive layer is arranged on the binding electrode. The elastic sealing ring is arranged between the first protective layer and the first substrate. According to the application, the elastic sealing ring is arranged between the first protective layer and the first substrate. The binding wire can apply pressure to the elastic sealing ring as a whole, so that the elastic sealing ring is elastically deformed, the periphery of the conductive part is sealed, the accumulation of water vapor, oxygen and the like in the air on the side surface of the binding electrode and the surface of the conductive part is reduced, and the risk of corrosion and oxidation of the conductive part and the binding electrode is reduced.

Description

Technical Field

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

[0002] During the assembly of the display panel 100', after the second substrate 6' and the first substrate 5' are aligned, a bonding electrode 51' is provided in the bonding area 50' around the first substrate 5'. One end of the bonding electrode 51' is connected to each pixel (not shown) in the display area, and the other end needs to be attached and connected to the bonding wire 4' of the circuit board. Figure 1 As shown, the bonding wire 4' includes a second protective layer 41', a conductive layer 42' (such as a copper layer), and a first protective layer 43' stacked together. The first protective layer 43' has an opening design to expose a portion of the conductive layer 42'. The exposed conductive layer 42' and the bonding electrode 51' are bonded together with their respective surfaces.

[0003] In the prior art, the mating connection between the bonding electrode 51' and the exposed conductive layer 42' is partially open. Please refer to [further details]. Figure 1 As shown, the side of the bonding electrode 51' is exposed, and part of the surface of the conductive layer 42' is exposed. During long-term use, moisture and oxygen from the atmosphere can easily accumulate in the open areas. Figure 1 As shown in the ellipse (in the image), corrosion occurs on the side of the bonding electrode 51' and the surface of the conductive layer 42', which in turn causes the surfaces where the bonding electrode 51' and the conductive layer 42' are in contact to gradually corrode and separate, ultimately leading to the failure of electrical signal transmission from the circuit board to the pixel, resulting in a circuit failure of the display panel 100'. Summary of the Invention

[0004] The purpose of this application is to provide a display panel that solves the technical problem that the connection between the bonding electrodes and the circuit board in existing display panels is prone to failure.

[0005] This application embodiment is implemented as follows: a display panel includes: a first substrate, bonding electrodes, bonding wires, and an elastic sealing ring; the first substrate includes a bonding area, in which the bonding electrodes are disposed; the bonding wires include a conductive layer and a first protective layer stacked together, the first protective layer having a through hole to expose a portion of the conductive layer, the conductive layer being stacked on the bonding electrodes, and the elastic sealing ring being sandwiched between the first protective layer and the first substrate, and surrounding the exposed conductive layer.

[0006] In one embodiment, the elastic sealing ring has a fixed end face and a sealing end face disposed opposite to each other in the thickness direction; the fixed end face is fixedly connected to the first protective layer, and the sealing end face is provided with sealing grease between itself and the surface of the first substrate; or, the fixed end face is connected to the surface of the first substrate, and the sealing end face is provided with sealing grease between itself and the first protective layer.

[0007] In one embodiment, the viscosity coefficient of the sealing grease is greater than or equal to 20 Pa·s.

[0008] In one embodiment, the elastic sealing ring has a fixed end face and a sealing end face disposed opposite to each other in the thickness direction; the fixed end face is fixedly connected to the first protective layer, or the fixed end face is connected to the surface of the first substrate; the sealing end face is provided with a plurality of grooves.

[0009] In one embodiment, a sealing grease is provided on the sealing end face, and the sealing grease partially fills the groove.

[0010] In one embodiment, the groove is annular around the through hole, or the grooves are parallel to each other on different sides of the elastic sealing ring.

[0011] In one embodiment, the bonding wire further includes a second protective layer disposed on the side of the conductive layer opposite to the first protective layer; the display panel further includes a reinforcing component disposed on the second protective layer.

[0012] In one embodiment, the reinforcing component includes a first reinforcing sheet and a second reinforcing sheet stacked sequentially on the second protective layer, wherein the coefficient of thermal expansion of the first reinforcing sheet is less than that of the second reinforcing sheet; the first reinforcing sheet and the second reinforcing sheet are connected in series or in parallel to a power supply.

[0013] In one embodiment, the reinforcing component includes a first reinforcing sheet and a second reinforcing sheet stacked sequentially on the second protective layer, and a heating element, wherein the coefficient of thermal expansion of the first reinforcing sheet is smaller than the coefficient of thermal expansion of the second reinforcing sheet.

[0014] Another objective of this application is to provide a display device that includes a display panel as described in the foregoing embodiments.

[0015] The display panel and display device provided in this application have the following advantages:

[0016] The display panel provided in this application embodiment has an elastic sealing ring sandwiched between the first protective layer and the first substrate. After the conductive part and the bonding electrode are fixedly connected, the bonding wire as a whole can apply a certain pressure to the elastic sealing ring, causing the elastic sealing ring to deform elastically. Thus, the elastic sealing ring can seal the area around the conductive part, reducing the accumulation of water vapor, oxygen, etc. in the air on the side of the bonding electrode and the surface of the conductive part. In this way, the risk of corrosion and oxidation of the conductive part and the bonding electrode is reduced, ensuring a good electrical connection between the bonding electrode and the bonding wire, thereby ensuring the normal circuit function and display of the display panel. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a display panel in the prior art;

[0019] Figure 2 This is a side view of the display panel provided in the first embodiment of this application;

[0020] Figure 3 This is a perspective view of a portion of the structure of the display panel provided in the first embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the first structure of the elastic sealing ring in the display panel provided in the first embodiment of this application;

[0022] Figure 5 This is a schematic diagram of a second structure of the elastic sealing ring of the display panel provided in the first embodiment of this application;

[0023] Figure 6 This is a side view of the display panel provided in the second embodiment of this application;

[0024] Figure 7 This is a perspective view of a portion of the structure of the display panel provided in the second embodiment of this application;

[0025] Figure 8 This is a side view of the display panel provided in the third embodiment of this application;

[0026] Figure 9 This is a perspective view of a portion of the structure of the display panel provided in the third embodiment of this application;

[0027] Figure 10 This is a side view of the display panel provided in the fourth embodiment of this application;

[0028] Figure 11 This is a perspective view of the middle part of the structure of the display panel provided in the fourth embodiment of this application;

[0029] Figure 12 This is a schematic diagram of the structure of the reinforcement component of the display panel provided in the fourth embodiment of this application, which is in a non-working state;

[0030] Figure 13 This is a structural schematic diagram of the reinforcing component of the display panel provided in the fourth embodiment of this application, which is in a bent working state;

[0031] Figure 14 This is a schematic diagram of the structure of the display device provided in the fifth embodiment of this application.

[0032] The markings in the diagram mean:

[0033] 100, 100' - Display panel;

[0034] 4, 4' - Bonding wire, 41, 41' - Second protective layer, 42, 42' - Conductive layer, 421 - Conductive part, 43, 43' - First protective layer, 430 - Through hole;

[0035] 5, 5' - First substrate; 50, 50' - Bonding area; 51, 51' - Bonding electrode; 52 - Unidirectional conductive adhesive;

[0036] 6, 6' - Second substrate;

[0037] 7-Elastic sealing ring, 72-Sealing end face, 720-Groove, 721-Protrusion;

[0038] 8-Reinforcing component, 81-Rigid plate, 82, 82'-First reinforcing sheet, 83, 83'-Second reinforcing sheet, 84-Heating element;

[0039] 200 - Display device; 91 - Backlight module. Detailed Implementation

[0040] 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.

[0041] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly fixed to or set on that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the purpose of 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 patent. The terms "first" and "second" are used only for the purpose of description and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly specified.

[0042] To illustrate the technical solutions described in this application, the following detailed description is provided in conjunction with specific drawings and embodiments.

[0043] First, please refer to Figure 2 and Figure 3 As shown, this application embodiment first provides a display panel 100, which includes a first substrate 5, bonding electrodes 51 disposed on the first substrate 5, bonding wires 4, and an elastic sealing ring 7. The upper edge portion of the first substrate 5 serves as a bonding area 50, and the middle portion serves as a display area; the bonding area 50 is provided with bonding electrodes 51, and the bonding electrodes 51 are connected to each pixel structure in the display area; the bonding electrodes 51 are electrically connected to the bonding wires 4 to input control signals to each pixel structure via the bonding wires 4 and the bonding electrodes 51.

[0044] Specifically, please refer to Figure 2 and Figure 3 As shown, the bonding wire 4 includes a second protective layer 41, a conductive layer 42, and a first protective layer 43 stacked sequentially. The second protective layer 41 and the first protective layer 43 are insulating material layers. The number of conductive layers 42 in the bonding wire 4 is not limited to one; there can be multiple layers, separated by insulating layers, etc. In this embodiment, a single conductive layer 42 is used as an example for explanation.

[0045] Please refer to the following: Figure 3 As shown, a through hole 430 is formed in the first protective layer 43 along the thickness direction (equivalent to the stacking direction) to expose a portion of the conductive layer 42. Figure 3 In the diagram, for clarity, the side surface of the first protective layer 43 and the inner surface of its through-hole 430 are filled with slanted dotted lines.

[0046] For ease of description, the exposed portion of the conductive layer 42 will be referred to as the conductive portion 421. The first protective layer 43 is disposed close to the bonding electrode 51, and the conductive portion 421 is stacked on the bonding electrode 51. Thus, the conductive portion 421 and the bonding electrode 51 are fixedly connected in a stacked manner (e.g., bonded together with conductive adhesive, specifically anisotropic conductive adhesive) to form an electrical connection. An elastic sealing ring 7 is sandwiched between the first protective layer 43 and the first substrate 5, and surrounds the through hole 430 and the conductive portion 421.

[0047] The elastic sealing ring 7 is sandwiched between the first protective layer 43 and the first substrate 5. After the conductive part 421 and the bonding electrode 51 are fixedly connected, the bonding wire 4 as a whole can apply a certain pressure to the elastic sealing ring 7, causing the elastic sealing ring 7 to deform elastically. Thus, the elastic sealing ring 7 can seal the area around the conductive part 421, reducing the accumulation of moisture, oxygen, etc. in the air on the side of the bonding electrode 51 and the surface of the conductive part 421. This reduces the risk of corrosion and oxidation of the conductive part 421 and the bonding electrode 51, ensuring a good electrical connection between the bonding electrode 51 and the bonding wire 4, and thus ensuring the normal circuit function and display of the display panel 100.

[0048] Please refer to the following: Figure 2 and Figure 3 As shown, the display panel 100 also includes a second substrate 6, which is connected to the first substrate 5. The display area of ​​the first substrate 5 corresponds to the second substrate 6, and the aforementioned plurality of pixel structures are disposed in the display area between the two; the bonding area 50 of the periphery of the first substrate 5 protrudes from at least one side of the second substrate 6.

[0049] like Figure 2 As shown, in one embodiment, a one-way conductive adhesive 52 is further provided between the bonding electrode 51 and the surface of the first substrate 5. This one-way conductive adhesive 52 ensures good point contact between the bonding electrode 51 and each pixel structure, and avoids abnormal conductive connections such as short circuits between different circuit parts. The elastic sealing ring 7 also reduces the risk of corrosion of the one-way conductive adhesive 52 by moisture and oxygen, as well as the risk of separation or open circuit between the one-way conductive adhesive 52 and the bonding electrode 51.

[0050] The elastic sealing ring 7 is made of a material with a certain degree of elasticity and flexibility, such as nitrile rubber, silicone rubber, or neoprene rubber. The specific material is not limited and can be selected according to application requirements.

[0051] It is understandable that the bonding electrode 51 also needs to be extended to connect to the display area. Since the thickness of the bonding electrode 51 is relatively thin, much smaller than the thickness of the elastic sealing ring 7, it can be ignored. The elastic sealing ring 7 can be closed-loop and does not need to be avoided on the side close to the display area. Moreover, the elasticity of the elastic sealing ring 7 itself can fully compensate for the height difference at the extension.

[0052] The elastic sealing ring 7 is sandwiched between the first protective layer 43 and the first substrate 5, and it can be fixedly connected to the first protective layer 43 or fixedly connected to the first substrate 5.

[0053] The elastic sealing ring 7 has two opposing end faces in the thickness direction, defined as the fixed end face (not shown) and the sealing end face 72, respectively. See [reference needed]. Figures 3 to 5 As shown. In one case, the fixed end face of the elastic sealing ring 7 is fixedly connected to the surface of the first protective layer 43, for example, by adhesive bonding. When assembling the bonding wire 4, the sealing end face 72 of the elastic sealing ring 7 is oriented towards the first substrate 5 until the bonding electrode 51 and the conductive part 421 make contact. The sealing end face 72 is squeezed by the surface of the first substrate 5, and the path between the sealing end face 72 and the surface of the first substrate 5 is blocked, preventing water vapor, oxygen, etc. from entering the interior of the sealing ring through this path.

[0054] Correspondingly, in another scenario, the fixed end face of the elastic sealing ring 7 is pre-fixed to the surface of the first substrate 5, for example, by adhesive bonding. During assembly of the binding wire 4, the first protective layer 43 is oriented towards the first substrate 5 until the binding electrode 51 contacts the conductive portion 421. The sealing end face 72 is compressed by the binding wire 4, blocking the path between the sealing end face 72 and the first protective layer 43, preventing moisture, oxygen, etc., from entering the sealing ring through this path.

[0055] In one embodiment, the sealing end face 72 of the elastic sealing ring 7 is provided with a plurality of grooves 720, and protrusions 721 are formed between the grooves 720. The main purpose of providing grooves 720 and protrusions 721 on the sealing end face 72 is to improve the elasticity and flexibility of the sealing end face 72 compared to the case where the sealing end face 72 is entirely flat, as well as to improve the sealing performance of the sealing end face 72 to the surface of the first substrate 5 (or the surface of the first protective layer 43) after deformation.

[0056] The form of the groove 720 and the protrusion 721 is not limited. For example, the groove 720 can be a plurality of dot-shaped recesses, or strip-shaped recesses, or a combination of dot-shaped recesses and strip-shaped recesses, etc. Correspondingly, the protrusion 721 can be a plurality of dot-shaped protrusions, or strip-shaped protrusions, or a combination of dot-shaped protrusions and strip-shaped protrusions, etc.

[0057] In one embodiment, such as Figure 4 and Figure 5 As shown, the groove 720 consists of multiple strip-shaped recesses, and the protrusions 721 between the strip-shaped recesses are strip-shaped.

[0058] The purpose of this design is that the strip-shaped protrusion 721 has better sealing performance after deformation.

[0059] The shape of the strip-shaped indentation is not particularly limited. For example, it can be a straight line, a curve, a broken line, or a combination of these shapes.

[0060] To further improve the barrier properties of the sealing end face 72 against water vapor and oxygen, and enhance the sealing performance of the sealing ring, in one embodiment, the display panel 100 also includes a sealing grease (not shown), which is disposed on the sealing end face 72 to completely seal the sealing end face 72 with the first substrate 5 (or the first protective layer 43).

[0061] Specifically, sealing grease can be pre-applied to the sealing end face 72 and filled within the groove 720. When the sealing end face 72 and its protrusions 721 are compressed and deformed, the sealing grease can flow out from the groove 720 and fill the surfaces of the sealing end face 72 and the first substrate 5 (or the surface of the first protective layer 43). Simultaneously, the design of the groove 720 and the protrusions 721 also contributes to the retention of the sealing grease on the surfaces of the sealing end face 72 and the first substrate 5 (or the surface of the first protective layer 43).

[0062] In particular, in the actual application of the display panel 100, when the sealing end face 72 is facing downward, the sealing grease will flow downward under its own gravity and then spread to the surroundings. At this time, the design of the groove 720 and the protrusion 721 is more conducive to reducing or avoiding the downward flow of the sealing grease.

[0063] To ensure that the sealing grease can remain on the surface of the sealing end face 72 and the first substrate 5 (or the surface of the first protective layer 43) for a long time, in one embodiment, the sealing grease may be a high-viscosity sealing grease. Specifically, the viscosity coefficient of the sealing grease is greater than or equal to 1 Pa·s.

[0064] Optionally, the viscosity coefficient of the sealing grease is greater than or equal to 5 Pa·s.

[0065] Alternatively, the viscosity coefficient of the sealing grease is greater than or equal to 10 Pa·s.

[0066] Alternatively, the viscosity coefficient of the sealing grease is greater than or equal to 20 Pa·s.

[0067] Furthermore, the viscosity coefficient of the sealing grease should not be too high, as an excessively high viscosity will prevent a seal from being formed. In one alternative embodiment, the viscosity coefficient of the sealing grease is less than or equal to 50 Pa·s.

[0068] Alternatively, the viscosity coefficient of the sealing grease is less than or equal to 40 Pa·s.

[0069] The specific materials for sealing greases can be lithium-based composite greases, calcium-based composite greases, silicone greases, polyurethane sealing greases, etc. This is merely an example; no specific limitations are made on the choice of material for the sealing grease.

[0070] Different widths of grooves 720 and protrusions 721 result in different retention forces for the sealing grease. Generally, the smaller the width of the groove 720 and the smaller the width of the protrusion 721, the larger the area on the sealing end face 72 that interacts with the sealing grease, and therefore the greater the retention force. Conversely, the larger the width, the smaller the retention force. Therefore, in specific embodiments, the widths of the grooves 720 and protrusions 721 can be designed in conjunction with the material and viscosity coefficient of the sealing grease. For example, narrower grooves 720 and protrusions 721 are suitable for sealing greases with lower viscosity coefficients; conversely, if the viscosity coefficient of the sealing grease is higher, the widths of the grooves 720 and protrusions 721 can be designed to be larger.

[0071] Please see Figure 4 As shown, in one embodiment, the groove 720 is annular, specifically a continuous closed loop; depending on specific needs, in other alternative embodiments, the grooves 720 can be arranged intermittently in an annular pattern. When multiple grooves 720 are provided on the sealing end face 72, the multiple grooves 720 are sequentially nested.

[0072] The shape of the groove 720 (referring to the extended shape around the conductive part 421) can be designed according to the shape of the through hole 430. For example, if the through hole 430 is quadrilateral (specifically, rectangular), the groove 720 can be designed accordingly as quadrilateral; for example, if the through hole 430 is circular or elliptical, the groove 720 can be designed accordingly as circular or elliptical.

[0073] Please see Figure 5 As shown, in another embodiment, the plurality of grooves 720 on the sealing end face 72 are arranged in parallel. This design is intended to address the fact that in some practical applications, the display panel 100 is placed at an angle or even perpendicular to the horizontal plane, in which case the sealing end face 72 is also at an angle or perpendicular to the horizontal plane. For example, if the display panel 100 is used as a computer display screen, taking a vertical placement as an example, the grooves 720 and protrusions 721 extend horizontally, and the sidewalls of the grooves 720 are perpendicular to the horizontal plane, rather than vertically downwards. Therefore, the sidewalls of the grooves 720 can help retain sealing grease between the sealing end face 72 and the surface of the first substrate 5 (or the surface of the first protective layer 43), preventing the sealing grease from flowing downwards along the sidewalls of the grooves 720, thus improving the sealing performance of the sealing ring in more applications.

[0074] It is understood that the aforementioned multiple grooves 720 are arranged in parallel to allow the inner walls of the grooves 720 to better block the downward flow of sealing grease. In practical applications, a certain angle between the grooves 720 due to manufacturing errors should be allowed.

[0075] The aforementioned bonding wire 4 can be a flexible circuit board or a rigid circuit board.

[0076] like Figure 6 and Figure 7 As shown, in one embodiment, the display panel 100 further includes a reinforcing component 8 disposed on the second protective layer 41. The reinforcing component 8 is configured to have a certain strength and be resistant to bending or warping. Therefore, the reinforcing component 8 can improve the strength of the bonding wire 4, reduce the possibility of the bonding wire 4 bending or warping (warping away from the first substrate 5), and further enable the bonding wire 4 to compress the elastic sealing ring 7 in the direction toward the first substrate 5, that is, enable the bonding wire 4 to maintain pressure on the elastic sealing ring 7.

[0077] This application provides an implementation scheme for the centralized reinforcement component 8.

[0078] In one optional embodiment, the reinforcing component 8 is one or more rigid plates 81, such as iron sheets, steel sheets, or rigid plastic sheets, etc. Figure 6 and Figure 7 As shown.

[0079] To increase the pressure of the reinforcing component 8 and the bonding wire 4 on the sealing ring, the edge of the rigid plate 81 can be pre-designed with a certain curvature, making the rigid plate 81 bowl-shaped. The surface of the central region of the rigid plate 81 is fixedly connected (e.g., bonded) to the second protective layer 41. The edge of the rigid plate 81 surrounds the through hole 430 and the conductive part 421 and bends towards the first substrate 5. The first protective layer 43 around the through hole 430 is also bent towards the first substrate 5. The curved edge of the rigid plate 81 reduces the gap height between the first protective layer 43 and the first substrate 5, thereby increasing the pressure on the elastic sealing ring 7 located between the first protective layer 43 and the first substrate 5.

[0080] Not limited to the above, in other alternative embodiments, if the rigid plate 81 has sufficient bending resistance, the edges of the rigid plate 81 may not be designed to be bent. Furthermore, the pressure exerted on the elastic sealing ring 7 can be appropriately increased by adjusting its thickness.

[0081] In one alternative embodiment, such as Figure 8 and Figure 9As shown, the reinforcing component 8 includes a first reinforcing sheet 82 and a second reinforcing sheet 83 that are sequentially fixed and stacked on the second protective layer 41. The coefficient of thermal expansion of the first reinforcing sheet 82 is less than that of the second reinforcing sheet 83. The first reinforcing sheet 82 and the second reinforcing sheet 83 are connected in series or in parallel to a power supply (not shown).

[0082] The first reinforcing sheet 82 and the second reinforcing sheet 83 can be made of metal materials with relatively high resistivity. When the first reinforcing sheet 82 and the second reinforcing sheet 83 are connected to a power supply, they act as a resistor. After current flows through the first reinforcing sheet 82 and the second reinforcing sheet 83, they both heat up. Since the coefficient of thermal expansion of the first reinforcing sheet 82 is smaller than that of the second reinforcing sheet 83, the second reinforcing sheet 83 expands more (shown as a longer expansion in the left-right direction in the figure). However, since the second reinforcing sheet 83 is fixedly stacked with the first reinforcing sheet 82, the elongation of the second reinforcing sheet 83 is restricted by the first reinforcing sheet 82. It cannot freely extend in the left-right direction, but instead bends towards the first substrate 5. Thus, the reinforcing assembly 8 is bowl-shaped. This also increases the pressure on the elastic sealing ring 7 between the first protective layer 43 and the first substrate 5.

[0083] The materials of the first reinforcing plate 82 and the second reinforcing plate 83 can be selected from silver, copper, aluminum, steel, zirconium, tungsten, nickel, iron, cobalt, titanium, rhenium, molybdenum, and niobium, respectively. The linear expansion coefficients of silver, copper, aluminum, steel, zirconium, tungsten, nickel, iron, cobalt, titanium, rhenium, molybdenum, and niobium are approximately 19, 16, 23, 12, 5.8, 4.5, 13, 11.8, 13, 8.6, 6, 5.2, and 7, respectively, all in units of 10E-6 / ℃. The resistivity of silver, copper, aluminum, zirconium, tungsten, nickel, iron, cobalt, titanium, rhenium, molybdenum, niobium, and steel are approximately 1.65, 1.75, 2.83, 43, 5.48, 7, 10, 12.4, 56, 19.3, 5.2, 15.3, and 10–30, respectively, all in units of 10E-8 ohm-meters.

[0084] The edge of the second reinforcing piece 83 can be aligned with the edge of the first reinforcing piece 82, such as... Figure 8 and Figure 9 As shown. Of course, as needed, either edge of the second reinforcing sheet 83 may extend slightly beyond the edge of the first reinforcing sheet 82, or either edge of the first reinforcing sheet 82 may extend slightly beyond the edge of the second reinforcing sheet 83, as long as it is ensured that the second reinforcing sheet 83 can bend toward the first substrate 5 when it is heated and expands.

[0085] In addition, the thickness of the first reinforcing sheet 82 and the second reinforcing sheet 83 is not limited, but it is also necessary to ensure that the second reinforcing sheet 83 can be bent toward the first substrate 5 when it is heated and expanded.

[0086] The reinforcement component 8 can be connected via the power supply component of the display panel 100 (see...). Figure 14 (As shown) is connected to an external power supply. That is, the reinforcing component 8 is only turned on when the display panel 100 is working normally. During non-operation periods, the reinforcing component 8 no longer expands due to heat and gradually returns to its flat state. When the display panel 100 is back in operation, the reinforcing component 8 returns to its bowl shape. This cycle repeats continuously.

[0087] In particular, even when the reinforcing component 8 is repeatedly bent and restored, the high-viscosity sealing grease can remain stably between the first protective layer 43 and the first substrate 5, without being pulled apart by the first protective layer 43. Therefore, the display panel 100 has good sealing performance.

[0088] In one optional embodiment, please refer to Figure 10 , Figure 11 As shown, the reinforcing component 8 includes a first reinforcing sheet 82' and a second reinforcing sheet 83' that are sequentially fixed and stacked on the second protective layer 41, and a heating element 84. The coefficient of thermal expansion of the first reinforcing sheet 82' is less than that of the second reinforcing sheet 83'. The heating element 84 is a component with a large resistance or other resistance value. The heating element 84 is connected to a power supply.

[0089] Compared with the aforementioned optional embodiments, the difference in this optional embodiment is that the heat generated by the thermal expansion of the first reinforcing sheet 82' and the second reinforcing sheet 83' is generated by the resistor itself, and is no longer generated by the resistor itself. Please refer to [link / reference needed]. Figure 12 and Figure 13 As shown. Everything else remains the same and will not be repeated.

[0090] In addition, the display panel 100 may also include a control module (e.g., a control circuit board, such as a flexible circuit board, not shown). The control module is electrically connected to the other end of the bonding wire 4 to provide corresponding control voltages to each pixel structure in the display area through the bonding wire 4 and the bonding electrode 51, thereby controlling the opening and closing of each pixel structure.

[0091] In addition, please see Figure 14 As shown, this application embodiment also provides a display device 200, which includes a display panel 100 as described in the foregoing embodiments.

[0092] The display device 200 provided in this embodiment has the same technical effects as the display panel 100 described in the foregoing embodiments, and will not be repeated here.

[0093] The display panel 100 may be a liquid crystal display panel, and the first substrate 5 may be an array substrate; the display device 200 may also include a backlight module 91, etc. Alternatively, in other optional embodiments, the display panel 100 may be other types of panels.

[0094] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display panel, characterized in that, The device includes a first substrate, a bonding electrode, a bonding wire, and an elastic sealing ring. The first substrate includes a bonding area, in which the bonding electrode is disposed. The bonding wire includes a conductive layer and a first protective layer stacked together. A through hole is formed in the first protective layer to expose a portion of the conductive layer. The conductive layer is stacked on the bonding electrode. The elastic sealing ring is sandwiched between the first protective layer and the first substrate and surrounds the exposed conductive layer.

2. The display panel as described in claim 1, characterized in that, The elastic sealing ring has a fixed end face and a sealing end face that are disposed opposite to each other in the thickness direction; the fixed end face is fixedly connected to the first protective layer, and the sealing end face is provided with sealing grease between itself and the surface of the first substrate; or, the fixed end face is connected to the surface of the first substrate, and the sealing end face is provided with sealing grease between itself and the first protective layer.

3. The display panel as described in claim 2, characterized in that, The viscosity coefficient of the sealing grease is greater than or equal to 20 Pa·s.

4. The display panel as described in claim 1, characterized in that, The elastic sealing ring has a fixed end face and a sealing end face that are arranged opposite to each other in the thickness direction; the fixed end face is fixedly connected to the first protective layer, or the fixed end face is connected to the surface of the first substrate; the sealing end face is provided with a plurality of grooves.

5. The display panel as described in claim 4, characterized in that, The sealing end face is provided with sealing grease, and the sealing grease partially fills the groove.

6. The display panel as described in claim 4, characterized in that, The groove is annular around the through hole, or the grooves are parallel to each other on different sides of the elastic sealing ring.

7. The display panel as described in any one of claims 1 to 6, characterized in that, The bonding wire further includes a second protective layer disposed on the side of the conductive layer opposite to the first protective layer; the display panel further includes a reinforcing component disposed on the second protective layer.

8. The display panel as described in claim 7, characterized in that, The reinforcing assembly includes a first reinforcing sheet and a second reinforcing sheet stacked sequentially on the second protective layer. The coefficient of thermal expansion of the first reinforcing sheet is less than that of the second reinforcing sheet. The first reinforcing sheet and the second reinforcing sheet are connected in series or in parallel to a power supply.

9. The display panel as described in claim 7, characterized in that, The reinforcing component includes a first reinforcing sheet and a second reinforcing sheet stacked sequentially on the second protective layer, and a heating element, wherein the coefficient of thermal expansion of the first reinforcing sheet is smaller than that of the second reinforcing sheet.

10. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 9.

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