Display panel and display device

Abstract

The invention relates to the technical field of display, and particularly provides a display panel and a display device.The display panel comprises a display area and a non-display area, the display area comprises an arc-shaped corner, the arc-shaped corner is composed of a smooth curve, and the non-display area is located outside the arc-shaped corner; the non-display area comprises a substrate, blocking pieces and a filling piece, the blocking pieces are located on one side of the substrate in the first direction, namely the thickness direction, the number of the blocking pieces is at least two, the blocking pieces are arranged at intervals, and at least part of any blocking piece extends along an external expansion line track formed by external expansion of an arc-shaped corner; the filling pieces are located on the substrate and distributed between the two adjacent blocking pieces, and the filling pieces are used for improving the electrical property of the non-display area. The filling piece is arranged in the non-display area, so that the electrical property of the non-display area can be improved, and the display effect of the display area is prevented from being influenced by electrical property abnormity of the non-display area; the blocking piece can help to block cracks formed in the non-display area from extending to the display area, the reliability of the non-display area is improved, and the display panel is prevented from losing efficacy.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) display panel is a display device that uses the self-luminous principle of organic light-emitting materials to achieve display; it has the advantages of fast response speed, high brightness, full viewing angle, etc., making it a type of display panel that is currently very competitive and has good development prospects. When designing a display panel, from an aesthetic point of view and operating experience, curved corners are generally formed at the corners of the panel, and a blank area without display function is formed outside the curved corner, that is, a non-display area. When the size of the non-display area is large, it will directly affect the display effect of the display panel. Summary of the invention

[0003] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0004] To this end, the embodiments of the present application provide a display panel and a display device to solve the technical problem in the prior art that the display effect will be affected when the blank area of ​​the display panel is too large.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is: to provide a display panel, the display panel comprising a display area and a non-display area, the display area comprising an arc-shaped corner, the arc-shaped corner being composed of a smooth curve, and the non-display area being located outside the arc-shaped corner; the non-display area comprising:

[0006] substrate;

[0007] a blocking member, located on one side of the substrate in the first direction, the number of the blocking members is at least two and they are arranged at intervals, at least a portion of any one of the blocking members is extended along an outward expansion line trajectory formed by the outward expansion of the arc-shaped corner; the first direction is the thickness direction of the substrate;

[0008] The filling member is located on the base and distributed between two adjacent blocking members.

[0009] In the embodiments provided in the present application, the display panel can improve the electrical properties of the non-display area by setting a filling piece in the non-display area, thereby ensuring that the electrical properties of the non-display area are stable and meet expectations, and preventing the non-display area from affecting the display effect of the display area due to electrical abnormalities; setting the filling piece may cause cracks in the non-display area to a certain extent, and the blocking piece can help prevent the cracks from extending to the display area, further improving the reliability of the non-display area and preventing failure of the display panel.

[0010] Optionally, the number of the blocking members is at least three and all the blocking members are arranged at equal intervals.

[0011] Optionally, between two adjacent blocking members, a plurality of filling members are arranged along the extension direction of the blocking members.

[0012] Optionally, in the second direction, the intervals between adjacent filling members are the same, and the second direction is parallel to the plane where the substrate is located.

[0013] Optionally, the filling member includes at least one of a virtual pixel and a metal member.

[0014] Optionally, the virtual pixel includes:

[0015] A connecting layer, located on one side of the substrate along the first direction, and having perforations formed therein;

[0016] an electrical property adjustment layer, located between the substrate and the connection layer, wherein the orthographic projection of the electrical property adjustment layer on the substrate covers the orthographic projection of the perforation on the substrate and partially overlaps with the orthographic projection of the connection layer on the substrate;

[0017] The planarization layer is located on a side of the connection layer facing away from the substrate, and the planarization layer fills the through hole and is connected to the electrical property adjustment layer.

[0018] Optionally, the connection layer includes an interlayer dielectric layer, a buffer layer, a first gate insulating layer, and a second gate insulating layer stacked on the substrate, the buffer layer is located between the interlayer dielectric layer and the substrate, the first gate insulating layer is located between the buffer layer and the interlayer dielectric layer, and the second gate insulating layer is located between the buffer layer and the substrate;

[0019] The planarization layer is connected to the electrical property adjustment layer through the interlayer dielectric layer, the buffer layer, the first gate insulating layer, and the second gate insulating layer.

[0020] Optionally, the virtual pixel further includes an outer coating layer and a touch sensing layer stacked with the substrate along the first direction, and the touch sensing layer is located between the planarization layer and the outer coating layer.

[0021] Optionally, the blocking member comprises a plurality of crack blocking grooves arranged at intervals, and the crack blocking grooves are located on a side of the connecting layer facing away from the substrate.

[0022] The present application also provides a display device, which includes any of the display panels described above.

[0023] In the embodiment provided in the present application, the display device has the above-mentioned display panel, and thus has at least the advantages of the above-mentioned display panel. The specific effects are described above and will not be repeated here.

[0024] The display panel and display device provided by the present application have the following beneficial effects: compared with the related art, the display panel provided by the present application can achieve the effect of maintaining the electrical stability of the non-display area and preventing the cracks formed in the non-display area from extending to the display area by setting a blocking member and a filling member in the non-display area. The non-display area with the above-mentioned filling member and blocking member has more stable electrical properties and reliability, which can effectively reduce the probability of abnormal display of the display panel and improve the reliability of the panel. In addition, the above-mentioned structure can also improve the display effect of the panel to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic plan view of a display panel provided in an embodiment of the present application;

[0027] Figure 2 An enlarged view of the structure of area A in the display panel provided in an embodiment of the present application;

[0028] Figure 3 for Figure 2 A magnified view of the structure in the middle B area;

[0029] Figure 4 for Figure 2 A magnified view of the structure of the middle C area;

[0030] Figure 5 for Figure 4 Schematic diagram of virtual pixels in;

[0031] Figure 6 A schematic diagram of a first structure of a virtual pixel in a display panel provided in an embodiment of the present application;

[0032] Figure 7 A second structural schematic diagram of a virtual pixel in a display panel provided in an embodiment of the present application;

[0033] Figure 8 A third structural schematic diagram of a virtual pixel in a display panel provided in an embodiment of the present application;

[0034] Fig. 9A simplified structural diagram of a display device provided in an embodiment of the present application.

[0035] Among them, the reference numerals in the figure are:

[0036] 10. Display panel; AA, display area; NA, non-display area; 100. Display device; 1. Substrate; 2. Blocking member; 21. Crack blocking groove; 3. Filling member; 31. Virtual pixel; 311. Connection layer; 3111. Interlayer dielectric layer; 3112. First gate insulating layer; 3113. Buffer layer; 3114. Other functional layers; 3115. Second gate insulating layer; 3101. Perforation; 312. Electrical property adjustment layer; 313. Planarization layer; 314. Outer coating; 315. Touch sensing layer. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0038] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0044] The term "substrate" used in the text refers to a material on which a subsequent material layer is added, which is used to provide a bearing matrix for each layer above it. In some embodiments, the substrate can be flexible, stretchable, foldable, bendable or rollable, so that the display panel can be flexible, stretchable, foldable, bendable or rollable. The material of the substrate can be formed by any suitable insulating material with flexibility, such as polyimide (PI), polycarbonate (English name, P), polyether sulfone (English name, PES), and can also be formed by polymer materials such as polyethylene terephthalate (PET), polyethylene naphthalate (English name, PEN), polyarylate (English name, PR) or glass fiber reinforced plastic (English name, FRP). The substrate can be transparent, translucent or opaque. In some other embodiments, the substrate can also be hard, made of hard insulating materials, such as metal, ultra-thin glass, plastic or sapphire wafer. The substrate itself may be patterned, materials added atop the substrate may be patterned, or may remain unpatterned.

[0045] The term "layer" used in the text may refer to a material portion including an area with a certain thickness. A layer may extend over the entire underlying structure or overlying structure, or may have a range smaller than the range of the underlying or overlying structure. In addition, a layer may be an area of ​​a homogeneous or inhomogeneous continuous structure, the thickness of which is less than the thickness of the continuous structure. For example, a layer may be located between the top surface and the bottom surface of the continuous structure or between any paired lateral planes at the top surface and the bottom surface. A layer may extend laterally, vertically and / or along a tapered surface. A substrate may be a layer, may include one or more layers therein, and / or may have one or more layers located thereon, above it and / or below it. A layer may include multiple layers. For example, an interconnect layer may include one or more conductors and a contact layer (forming contacts, interconnects and / or vias therein) and one or more dielectric layers.

[0046] With the development of display technology, the types of display panels 10 in the market are gradually increasing, and the performance is constantly improving. From the overall structure of the panel, in order to pursue better display effects and better operating experience, taking a corner of the display panel 10 as an example, it is generally designed to be an arc structure, that is, a "panel arc". The arc design will form a non-display area NA at the corner of the display panel 10.

[0047] This arc-shaped structural design is widely used in mobile phone screens, smart watches and other devices. Taking the mobile phone screen as an example, the arc-shaped structural design not only looks more beautiful, but also reduces the possibility of accidental touches at the corners in terms of operating experience, especially for touch screen devices. Furthermore, the arc-shaped corners can also reduce the degree of damage to the corners of the screen when they are impacted by external forces to a certain extent, thereby improving the durability of the screen.

[0048] When the display panel 10 is designed with a display area AA having a special shape based on special design requirements, the size and specifications of the display area AA may result in the formation of a relatively large non-display area NA at the corresponding arc angle, such as Figure 1 In the process of implementing the present application, the inventors found that the following problems exist in the related art: Since the size of the non-display area NA is too large, it will directly affect the electrical properties of the pixels adjacent to the non-display area NA and affect the normal display of the display panel 10. During the test process, it was found that the pixels adjacent to the non-display area NA will be affected by the electrical properties of the non-display area NA, resulting in a decrease in the display quality of the relevant area and poor display.

[0049] Based on this, an embodiment of the present application provides a display panel 10, which can effectively improve the electrical properties of the non-display area NA by setting a filling member 3 in the non-display area NA, so that the electrical properties of the non-display area NA meet expectations, avoid the larger non-display area NA affecting the electrical properties of the display area AA, reduce the possibility of the display effect of the display area AA being affected by electrical abnormalities, make the display area AA have higher reliability, and avoid display abnormalities.

[0050] Reference Figure 1-Figure 4 The embodiment of the present application provides a display panel 10, which includes a display area AA and a non-display area NA, wherein the display area AA has an arc-shaped corner, the arc-shaped corner is composed of a smooth curve (which may be an arc), and the non-display area NA is located outside the arc-shaped corner. In other words, the arc-shaped corner is located on the boundary line between the display area AA and the non-display area NA.

[0051] The non-display area NA includes a substrate 1, a blocking member 2 and a filling member 3, wherein the blocking member 2 and the filling member 3 are both located on the substrate 1. The thickness direction of the substrate 1 is defined as a first direction, the blocking member 2 is located on one side of the substrate 1 in the first direction, the number of the blocking members 2 is at least two and they are arranged at intervals on the substrate 1, wherein at least a portion of any one of the blocking members 2 is extended along an expansion line trajectory formed by the expansion of the arc-shaped corners, such as Figure 2As shown. The first direction is the thickness direction of the substrate 1. The above-mentioned outward expansion line trajectory can form a plurality of regularly arranged blocking members 2 in the non-display area NA according to the adjustment of the outward expansion width, thereby achieving full utilization of the space of the non-display area NA. The filling member 3 located on the substrate 1 is distributed between two adjacent blocking members 2 to improve the electrical properties of the non-display area NA.

[0052] The display panel 10 can improve the electrical properties of the non-display area NA by setting a filler 3 in the non-display area NA, ensure that the electrical properties of the non-display area NA are stable and meet expectations, avoid the non-display area NA affecting the display effect of the display area AA due to electrical abnormalities, and improve the reliability of the display panel 10. After the filler 3 is set in the non-display area NA, if it is directly packaged, cracks will easily appear in the non-display area NA due to the presence of the filler 3. Since the size of the non-display area NA is large, the number and distribution area of ​​the corresponding fillers 3 set thereon are also large, which will affect the processing reliability of the non-display area NA to a certain extent. The cracks formed in the non-display area NA will expand and extend and eventually propagate to the display area AA, eventually affecting the overall reliability of the display panel 10. In order to solve this problem, it is necessary to set a corresponding barrier structure in the non-display area NA to block the crack extension. The barrier 2 can help block the crack from extending to the display area AA, further improve the reliability of the non-display area NA, and avoid failure of the display panel 10.

[0053] Therefore, in the embodiment provided in the present application, the display panel 10 can overcome the problem of electrical abnormality in the non-display area NA by means of a filling member 3 disposed in the non-display area NA, thereby helping to ensure that the electrical properties of the display area AA are protected from the influence of the non-display area NA and having a better display effect. At the same time, the blocking member 2 disposed in the non-display area NA can be used to block cracks formed in the non-display area NA from extending to the display area AA, thereby preventing the cracks from affecting the packaging reliability of the display area AA and enabling the display area AA to have a better packaging effect.

[0054] In this embodiment or some other embodiments, the extension trajectory of the above-mentioned blocking member 2 can be formed by expanding the outer edge trajectory of the display area AA toward the non-display area NA; or, it can also be formed by expanding the outer edge trajectory of the display area AA and other lines (such as the boundary line between the non-display area NA and the bending area or other areas of the display panel 10) toward the non-display area NA.

[0055] The blocking member 2 can effectively prevent the crack from extending to the display area AA, thus achieving a good crack blocking effect.

[0056] It should be noted that at least one of the blocking members 2 is located on a side of the non-display area NA close to the display area AA.

[0057] In this embodiment and other similar embodiments, the non-display area NA is located outside the lower left arc corner of the display area AA, and the filler 3 and the blocking member 2 are distributed in the non-display area NA. Of course, when the overall structure of the display panel 10 is adjusted, the arc corner can also be formed at the lower right corner, upper left corner, and upper right corner of the display area AA, and accordingly, the non-display area NA with the filler 3 can also be adaptively adjusted as the arc angle distribution position is adjusted.

[0058] The number of the blocking members 2 is limited by the distribution pitch and the size of the non-display area NA. Generally speaking, the number of the blocking members 2 should be no less than ten.

[0059] In this embodiment and other embodiments, when the number of the blocking members 2 is at least three, any two adjacent blocking members 2 are arranged at equal intervals, such as Figure 2 and Figure 3 The blocking members 2 arranged at equal intervals have a better effect of preventing crack extension, and can also keep the distribution density of the filling members 3 between any two adjacent blocking members 2 basically close or consistent, so that the electrical properties at various positions of the non-display area NA meet the design, and ensure that the electrical properties of the display area AA will not be affected by the electrical properties of the non-display area NA and meet the design expectations.

[0060] The blocking member 2 includes a plurality of crack blocking grooves 21 arranged at intervals, such as Figure 3 As shown, the crack blocking groove 21 is a cutting channel structure. Each cutting channel can be regarded as a hollowed-out dam structure, and the inorganic layer next to it is equivalent to the existing dam structure.

[0061] It can be seen that the barrier 2 formed in the middle of the non-display area NA at this time includes a plurality of crack blocking grooves 21 arranged side by side.

[0062] In some embodiments, the number of crack preventing grooves 21 of the preventing member 2 disposed adjacent to the display area AA is greater than the number of crack preventing grooves 21 included in any other preventing member 2 located in the non-display area NA.

[0063] Specifically, in the present embodiment, the barrier member 2 disposed adjacent to the display area AA includes at least 10 crack blocking grooves 21 arranged side by side, while the remaining barrier members 2 are composed of only five crack blocking grooves 21 arranged side by side.

[0064] The blocking member 2 adjacent to the display area AA can effectively prevent cracks formed in the non-display area NA of the display panel 10 from extending to the display area AA through related layered structures, such as inorganic layers, etc.; at the same time, it can also avoid the problem of peeling between the stacked layers due to low viscosity. The blocking member 2 disposed in the non-display area NA can avoid the stress concentration problem caused by the provision of the filling member 3, thereby reducing the risk of cracks; when cracks occur, the blocking member 2 can block the cracks and prevent the cracks from extending in the non-display area NA.

[0065] The structure and distribution of the filling members 3 disposed between the blocking members 2 are described below.

[0066] In some embodiments, between two adjacent blocking members 2 , a plurality of filling members 3 are arranged along the extending direction of the blocking members 2 .

[0067] When setting the filling member 3, the filling member 3 should be distributed as evenly as possible in the gap formed between two adjacent blocking members 2 to ensure relatively uniform electrical distribution between various regions in the non-display area NA and stress balance between various regions in the non-display area NA.

[0068] Specifically, in the second direction, the intervals between adjacent filling pieces 3 are the same.

[0069] The second direction is parallel to the plane where the substrate 1 is located. In the second direction, the filling members 3 are arranged at the same interval or closely in sequence.

[0070] Below Figure 3 Taking the distribution of the filler 3 as an example, the following is an explanation:

[0071] The third direction is parallel to the plane where the substrate 1 is located and is orthogonal to the second direction. The second direction and the third direction are both perpendicular to the first direction. Between two adjacent blocking members 2, the plurality of fillers 3 include at least one column in the second direction and at least one row in the third direction; in addition, the spacing between the adjacent fillers 3 in the second direction is the same, and the spacing in the third direction is also kept the same.

[0072] In this embodiment and other similar embodiments, the non-display area NA is located outside the lower left arc corner of the display area AA, and the filling members 3 are distributed in the non-display area NA and arranged in a staircase. At this time, in the vertical direction (i.e., the second direction), the staircase-arranged filling members 3 include at least one column; in the horizontal direction (i.e., the third direction), the staircase-arranged filling members 3 include at least one row. Figure 3 This is a schematic diagram of the arrangement of the step-shaped filling members 3 disclosed in this embodiment and other similar embodiments. It can be seen from the figure that the filling members 3 located between two adjacent blocking members 2 include two rows and four columns.

[0073] In this embodiment and other similar embodiments, the non-display area NA is located outside the lower left arc corner of the display area AA, and the filling members 3 are distributed in the non-display area NA and arranged along the extension direction of the blocking member 2. At this time, the filling members 3 are arranged according to the extension direction of the area defined by two adjacent blocking members 2, that is, the filling members 3 can also be arranged in a single row or multiple rows according to the curve formed by the trajectory where the outer edge of the arc corner is expanded outward.

[0074] In other embodiments, when the non-display area NA is located at other positions of the display area AA, the above-mentioned filling members 3 can still be arranged in a similar manner: in the vertical direction, the filling members 3 arranged in a step-like manner include at least one column; in the horizontal direction, the filling members 3 arranged in a step-like manner include at least one row; or, the above-mentioned filling members 3 can be arranged in a single row or multiple rows along a specific curve according to the extension direction of the area defined by the blocking member 2.

[0075] The above-mentioned filling member 3 can fill the non-display area NA in accordance with the arc trend with the cooperation of the blocking member 2. The filling member 3 is arranged according to the trend of the arc corner, which can not only solve the problem of uneven etching of the non-display area NA, improve the uniformity of etching in the rounded corner area, and improve the reliability and yield rate of the display panel 10, but also effectively improve the electrical properties of the non-display area NA, reduce the possibility that the display area AA is affected by the electrical properties of the non-display area NA, and help improve the display effect of the display area AA.

[0076] It should be noted that the blocking member 2 and the filling member 3 are both located on the same side of the substrate 1 in the thickness direction (ie, the first direction).

[0077] The filling member 3 includes at least one of a dummy pixel 31 and a metal member.

[0078] A certain filler 3 is composed of a plurality of virtual pixels 31 and / or metal parts, that is, the filler 3 may be composed of one or more virtual pixels 31, one or more metal parts, or a mixture of a plurality of virtual pixels 31 and a plurality of metal parts. The structures of the fillers 3 located in the same non-display area NA may be the same or partially different.

[0079] In some embodiments, the filler 3 may be composed of a plurality of virtual pixels 31. The plurality of virtual pixels 31 are arranged regularly or randomly to form a complete filler 3, and the spacing between the virtual pixels 31 in the same filler 3 is substantially consistent, so as to ensure that the arrangement of the virtual pixels 31 in the filler 3 remains relatively uniform.

[0080] Figure 4This is a schematic diagram of the distribution of virtual pixels 31 in the filling member 3 disclosed in this embodiment or other similar embodiments. It can be seen from the figure that at this time, one filling member 3 includes seventeen virtual pixels 31 and each virtual pixel 31 is basically evenly arranged in the filling member 3.

[0081] In other embodiments, the filler 3 may be composed of several metal parts, which may be in sheet or layer form, such as a metal sheet structure formed by metal molybdenum Mu, or a layer structure formed by alternately stacking titanium plates, aluminum plates and titanium plates, etc. The above metal parts may be prepared on the substrate 1 by physical vapor deposition, sputtering, evaporation and other techniques.

[0082] The virtual pixels 31 and / or metal parts used to constitute the filling member 3 contain certain metals, and this type of metal has strong activity (such as aluminum). Under high-temperature processes, it can ionize with water vapor in adjacent layers to produce hydrogen ions. These hydrogen ions can be released along a specific direction and gather to form a similar hydrogen atmosphere. Changes in hydrogen content will affect the electrical properties of the pixels, and thus affect the display effect of the relevant area. By arranging the filling member 3 in the non-display area NA, the hydrogen atmosphere of the non-display area NA can be kept basically consistent with the hydrogen atmosphere of the display area AA, so as to prevent the side of the display area AA adjacent to the non-display area NA from being affected by the non-display area NA and unable to maintain electrical stability, thereby ensuring the electrical stability of each area of ​​the display panel 10, and making the display panel 10 have higher reliability.

[0083] During the preparation of the display panel 10, the filling member 3 composed of a plurality of virtual pixels 31 and / or metal parts can release part of the hydrogen along the interface and holes during the high-temperature process, thereby keeping the hydrogen atmosphere in the non-display area NA and the display area AA consistent, and achieving the effect of maintaining the electrical stability of each area of ​​the panel.

[0084] In this embodiment and other similar embodiments, the structure of the virtual pixel 31 is as follows: Figure 5 The virtual pixel 31 includes a connection layer 311, an electrical property adjustment layer 312 and a planarization layer 313, wherein the connection layer 311 is located on one side of the substrate 1 in the first direction, and a through hole 3101 is provided on the connection layer 311, the electrical property adjustment layer 312 is located between the substrate 1 and the connection layer 311, and the orthographic projection of the electrical property adjustment layer 312 on the substrate 1 covers the orthographic projection of the through hole 3101 on the substrate 1, and partially overlaps with the orthographic projection of the connection layer 311 on the substrate 1; the planarization layer 313 is located on the side of the connection layer 311 facing away from the substrate 1, and the planarization layer 313 fills the through hole 3101 and is connected to the electrical property adjustment layer 312.

[0085] The electrical property adjustment layer 312 may be a PSI layer (Porous Silicon). During the high temperature process, hydrogen in the PSI layer will escape along the cross section and the holes, so that the hydrogen atmosphere around the virtual pixel 31 in the non-display area NA can be basically consistent with the hydrogen atmosphere in the display area AA, thereby maintaining electrical stability in different areas of the display panel 10.

[0086] It should be noted that the connection layer 311 and / or the planarization layer 313 may be a multi-layer structure.

[0087] Figure 6 The cross-sectional structure diagram of a certain virtual pixel 31 disclosed in this embodiment and other similar embodiments is shown in FIG. 3 , wherein the virtual pixel 31 includes a connection layer 311, an electrical property adjustment layer 312 and a planarization layer 313, wherein the electrical property adjustment layer 312 (PSI layer) is stacked on the substrate 1, the connection layer 311 covers the electrical property adjustment layer 312 and is attached to the substrate 1, at this time, the through hole 3101 formed on the connection layer 311 is just located above the electrical property adjustment layer 312 and makes part of the electrical property adjustment layer 312 exposed relative to the connection layer 311, and the planarization layer 313 is located on the side of the connection layer 311 facing away from the substrate 1. The planarization layer 313 covering the connection layer 311 not only covers and fills the through hole 3101, protects the connection layer 311, the electrical property adjustment layer 312 and the substrate 1 from the influence of the external environment, but also can play a role in planarizing and insulating the surface of the display panel 10, helping to reduce the roughness of the surface of the display panel 10 and improve its display effect. In addition, the design of the planarization layer 313 is also helpful to reduce the difficulty of subsequent film deposition and processing, so that the display panel 10 has better reliability.

[0088] The planarization layer 313 may be made of organic materials.

[0089] Figure 7 FIG. 1 is a schematic cross-sectional structure diagram of another virtual pixel 31 disclosed in other embodiments. Figure 6In comparison, the substrate 1 and the connecting layer 311 in the virtual pixel 31 are both multi-layer structures, wherein the connecting layer 311 includes a stacked interlayer dielectric layer 3111 (Inter Layer Dielectric Layer, ILD layer, used to isolate different circuit layers), a first gate insulating layer 3112 (Gate Insulator Layer, GI), a buffer layer 3113 (buffer) and a second gate insulating layer 3115, and through holes are set through the above-mentioned interlayer dielectric layer 3111, the first gate insulating layer 3112, the buffer layer 3113 and the second gate insulating layer 3115 and connect the electrical adjustment layer 312 and the planarization layer 313. The second gate insulating layer 3115 is located on the side of the electrical property adjustment layer 312 facing away from the substrate 1 and covers the substrate 1, the buffer layer 3113 is located on the side of the second gate insulating layer 3115 facing away from the substrate 1, the interlayer dielectric layer 3111 is located on the side of the buffer layer 3113 facing away from the substrate 1, and the first gate insulating layer 3112 is located between the buffer layer 3113 and the interlayer dielectric layer 3111. The planarization layer 313 is connected to the electrical property adjustment layer 312 through the through hole formed on the connection layer 311. In addition to the above structure, another functional layer 3114 is provided between the second gate insulating layer 3115 and the buffer layer 3113, and the other functional layer 3114 can be used to separate the buffer layer 3113 and the second gate insulating layer 3115, and can play a role of insulation or protection.

[0090] Figure 8 FIG. 1 is a schematic cross-sectional structure diagram of another virtual pixel 31 disclosed in other embodiments. Figure 7 In comparison, the virtual pixel 31 also includes an overcoat layer 314 (Over Coat Layer, OC, used to protect the screen or provide other surface properties) and a touch sensing layer 315 (Touch Panel Insertion, TP-INS, to achieve touch sensing function) stacked with the substrate 1, wherein the overcoat layer 314 is located on the side of the planarization layer 313 facing away from the substrate 1, and the touch sensing layer 315 is located between the planarization layer 313 and the connecting layer 311.

[0091] The display panel 10 with the touch sensing layer 315 can realize the touch function, detect the user's touch operation on the screen, such as clicking, sliding, zooming, etc., and convert these touch signals into electrical signals and transmit them to the relevant control circuit, so as to realize the operation control of the device. The touch sensing layer 315 allows the user to perform various interactive operations directly on the screen with fingers.

[0092] In addition to the above structure, in order to improve the preparation quality of the touch sensing layer 315 prepared outside the planarization layer 313, the planarization layer 313 is set to a multi-layer structure. Figure 8The planarization layer 313 in the figure is a three-layer structure, which can be stacked outside the connection layer 311 through three identical or similar preparation processes. Such a structural design can make the surface of the film layer used to prepare the touch sensing layer 315 more flat, which can improve the preparation quality of the touch sensing layer 315 to a certain extent and help improve the reliability of the display panel 10.

[0093] It can be seen from the structural description of the above-mentioned virtual pixel 31 that the structure of the virtual pixel 31 located in the non-display area NA provided in the above-mentioned embodiments is formed synchronously with the pixel located in the display area AA and the structural construction principle is basically the same, so that when the display panel 10 is prepared, the display area AA and the non-display area NA located on the inner and outer sides of the arc angle can simultaneously form a basically identical film layer structure, thereby ensuring the continuity of the film layer structure of the display area AA and the non-display area NA, helping to improve the etching uniformity of the display panel 10, and also making the electrical properties of the non-display area NA and the display area AA of the display panel 10 meet expectations, thereby improving the electrical stability and reliability of the display panel 10; at the same time, the blocking member 2 arranged in the non-display area NA can effectively prevent cracks from extending from the non-display area NA to the display area AA, thereby reducing the influence of cracks on the packaging reliability of the display area AA.

[0094] When the barrier 2 is processed in the non-display area NA of the display panel 10 , the crack blocking groove 21 constituting the barrier 2 is disposed on the connection layer 311 and is located on the side of the connection layer 311 facing away from the substrate 1 .

[0095] In some embodiments, the crack stopper groove 21 is formed on the interlayer dielectric layer 3111 of the connection layer 311. The interlayer dielectric layer 3111 is an inorganic layer made of inorganic material, so the crack stopper groove 21 is an inorganic groove structure disposed on the inorganic layer.

[0096] The crack blocking groove 21, the filling member 3 and the related film layers of the display area AA are formed simultaneously. That is, the display panel 10 structure provided by the above embodiments can realize the processing of the non-display area NA and the related film layers of the display area AA in the same processing step.

[0097] It is understandable that the display panel 10 provided in the present application can achieve the purpose of improving the electrical properties of the non-display area NA by setting the blocking member 2 and the filling member 3 in the non-display area NA, ensuring that the electrical properties of the non-display area NA meet expectations and will not affect the electrical properties in the adjacent display area AA and the reliability of the film layer, ensuring that the electrical properties of the display area AA remain stable, so that the display area AA can display normally, and improving the reliability of the display panel 10. In addition, the above structure can also improve the durability of the packaging structure of the display panel 10 to a certain extent, so that the display panel 10 has a longer service life.

[0098] In another embodiment, the present application further provides a display device 100, the display device 100 comprising any of the display panels 10 described above, see Fig. 9 .

[0099] The display device 100 has the above-mentioned display panel 10 , and thus has at least the advantages of the above-mentioned display panel 10 . The specific effects are described in detail in the above-mentioned embodiments, which will not be described in detail here.

[0100] The display device 100 provided in this embodiment can be a mobile phone, a notebook, a tablet computer, a smart watch, a smart bracelet, a navigator, a display, a personal digital assistant (PDA), and other products or components with display functions.

[0101] Since the display panel 10 in the display device 100 has the above-mentioned non-display area NA and the blocking member 2 and the filling member 3 formed in the non-display area NA, and the blocking member 2 and the filling member 3 can prevent the cracks in the non-display area NA from extending to the display area AA and improve the electrical properties of the non-display area NA, it can achieve the purpose of ensuring that the electrical properties of the display area AA meet expectations and the display area AA can display normally. The reliability of the display panel 10 can be improved to a certain extent, and the display panel 10 can be prevented from displaying abnormalities and other failures that affect reliability. In addition, the above structure can also improve the durability of the packaging structure of the display panel 10 to a certain extent, so that the display panel 10 has a longer service life.

[0102] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: It includes a display area and a non-display area, the display area includes an arc-shaped corner, the arc-shaped corner is composed of a smooth curve, and the non-display area is located outside the arc-shaped corner; the non-display area includes: substrate; a blocking member, located on one side of the substrate in the first direction, the number of the blocking members is at least two and they are arranged at intervals, at least a portion of any one of the blocking members is extended along an outward expansion line trajectory formed by the outward expansion of the arc-shaped corner; the first direction is the thickness direction of the substrate; The filling member is located on the base and distributed between two adjacent blocking members.

2. The display panel according to claim 1, characterized in that: The number of the blocking members is at least three and the blocking members are arranged at equal intervals.

3. The display panel according to claim 1, characterized in that: Between two adjacent blocking members, a plurality of filling members are arranged along the extending direction of the blocking members.

4. The display panel according to claim 3, characterized in that: In the second direction, the intervals between adjacent filling members are the same, and the second direction is parallel to the plane where the substrate is located.

5. The display panel according to any one of claims 1 to 4, characterized in that: The filling member includes at least one of a dummy pixel and a metal member.

6. The display panel according to claim 5, characterized in that: The virtual pixel comprises: A connecting layer, located on one side of the substrate along the first direction, and having perforations formed therein; an electrical property adjustment layer, located between the substrate and the connection layer, wherein the orthographic projection of the electrical property adjustment layer on the substrate covers the orthographic projection of the perforation on the substrate and partially overlaps with the orthographic projection of the connection layer on the substrate; The planarization layer is located on a side of the connection layer facing away from the substrate, and the planarization layer fills the through hole and is connected to the electrical property adjustment layer.

7. The display panel according to claim 6, characterized in that: The connection layer includes an interlayer dielectric layer, a buffer layer, a first gate insulating layer, and a second gate insulating layer stacked on the substrate, the buffer layer is located between the interlayer dielectric layer and the substrate, the first gate insulating layer is located between the buffer layer and the interlayer dielectric layer, and the second gate insulating layer is located between the buffer layer and the substrate; The planarization layer is connected to the electrical property adjustment layer through the interlayer dielectric layer, the buffer layer, the first gate insulating layer, and the second gate insulating layer.

8. The display panel according to claim 6, characterized in that: The virtual pixel further includes an outer coating layer and a touch sensing layer stacked with the substrate along the first direction, and the touch sensing layer is located between the planarization layer and the outer coating layer.

9. The display panel according to claim 6 or 7, characterized in that: The blocking member comprises a plurality of crack blocking grooves arranged at intervals, and the crack blocking grooves are located on a side of the connecting layer facing away from the substrate.

10. A display device comprising the display panel according to any one of claims 1 to 9.

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