Display panel and display device

Abstract

The embodiment of the utility model provides a display panel and a display device, relates to the technical field of display, and aims to improve the display effect of the display panel. The display panel has a display area and an edge area surrounding the display area. The display panel comprises first frame sealing glue, second frame sealing glue, an organic layer, a first substrate and a second substrate, wherein the first substrate and the second substrate are oppositely arranged. The first frame sealing glue and the second frame sealing glue are located in the edge area, located between the first substrate and the second substrate and further connected with the first substrate and the second substrate. The first frame sealing glue surrounds the display area, and the second frame sealing glue is located on the side, away from the display area, of the first frame sealing glue. The organic layer is located in the display area and located between the first substrate and the second substrate. The second frame sealing glue is connected with the first frame sealing glue, and a sealed space is formed between the first substrate and the second substrate in an enclosing mode. The display panel and the display device are used for realizing display.

Description

Technical Field

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

[0002] Liquid Crystal Display (LCD) is a flat-panel display that achieves imaging by changing the arrangement direction of liquid crystal molecules. It has the advantages of low power consumption, small size, and low radiation, and is widely used in electronic products such as smart phones and computer monitors. For LCDs in the consumer field, the display effect is particularly important. The manufacturing process of LCDs involves multiple process links, and there are often many factors in each process link that can easily have a negative impact on the display effect of the LCD. For example, if part of the display area of ​​the display panel in the LCD is yellow, it will affect the overall display effect of the LCD and cause a poor user experience. Utility Model Content

[0003] The purpose of the embodiments of the present disclosure is to provide a display panel and a display device, which are used to improve the problem of yellowing display at the edge of the display area of ​​the display panel (that is, the edge area of ​​the display screen).

[0004] To achieve the above objectives, the embodiments of the present disclosure provide the following technical solutions:

[0005] On the one hand, a display panel is provided, which has a display area and an edge area surrounding the display area. The display panel includes: a first frame sealant, a second frame sealant, an organic layer, and a first substrate and a second substrate arranged opposite to each other. The first frame sealant and the second frame sealant are located in the edge area, and are located between the first substrate and the second substrate, and also connect the first substrate and the second substrate. The first frame sealant surrounds the display area, and the second frame sealant is located on the side of the first frame sealant away from the display area. The organic layer is located in the display area and is located between the first substrate and the second substrate. Among them, the second frame sealant is connected to the first frame sealant, and together encloses a sealed space between the first substrate and the second substrate.

[0006] Optionally, the first substrate includes a color filter substrate, and the second substrate includes an array substrate. The distance between the second frame sealant and the boundary of the first substrate is smaller than the distance between the second frame sealant and the boundary of the second substrate.

[0007] Optionally, the distance between the second frame sealant and the boundary of the first substrate is not less than 100 μm and not more than 200 μm, and / or the distance between the second frame sealant and the boundary of the second substrate is not less than 150 μm and not more than 250 μm.

[0008] Optionally, the color filter substrate includes a black matrix, wherein the distance between the black matrix and the boundary of the color filter substrate is not less than 100 μm and not more than 200 μm, and / or the distance between the orthographic projection of the second frame sealant on the black matrix and the boundary of the black matrix is ​​not more than 100 μm.

[0009] Optionally, the distance between the second frame sealant and the first frame sealant is not less than 300 μm and not more than 500 μm. And / or, along the arrangement direction of the first frame sealant and the second frame sealant, the size of the second frame sealant is not less than 300 μm and not more than 500 μm. And / or, along the arrangement direction of the first frame sealant and the second frame sealant, the size of the first frame sealant is not less than 1000 μm and not more than 1500 μm.

[0010] Optionally, the second frame sealant includes: a first sealing portion and at least two second sealing portions. The first sealing portion extends along the first direction, and the second sealing portion extends along the second direction. The first frame sealant and the second frame sealant are arranged in a third direction, the first direction intersects with the third direction, and the second direction intersects with the first direction.

[0011] Optionally, along the first direction, a size of the sealed space is greater than or equal to 80% of a size of the display area.

[0012] Optionally, the second frame sealing glue is located on the data binding side of the display panel.

[0013] Optionally, the portion of the edge area on the data binding side of the display panel has at least one binding area, and any sealed space at least partially overlaps with the binding area. Along the edge direction of the display panel on the data binding side, the size of any sealed space is larger than the size of the binding area overlapping with it.

[0014] The display panel provided by the embodiment of the present disclosure can achieve the following beneficial effects: the organic layer can constitute the electrical functional structure of the display panel in the display area, meeting the electrical functional requirements of the display panel, and the display panel may not be provided with a filling structure in the same layer as the organic layer in the edge area, so as to prevent water vapor from entering the interior of the liquid crystal display box through the same layer structure of the organic layer in the edge area. The second frame sealant located in the edge area and the first frame sealant can also be used to enclose a sealed space between the first substrate and the second substrate together, and this sealed space can withstand a part of the pressure caused by breaking the vacuum on the first substrate and the second substrate during the production process of the display panel, and alleviate the pressure on the edge of the display area near the sealed space, thereby improving the warping of the first substrate or the second substrate at the edge of the display area, improving the thickness uniformity of the display panel, and avoiding the phenomenon of liquid crystal accumulation or missing at the edge of the display area, thereby improving the problem of yellowing at the edge of the display area.

[0015] On the other hand, a display device is provided, comprising: a display panel as in the above embodiment.

[0016] The above-mentioned display device has the same or similar structure and beneficial technical effects as the display panels provided in some of the above-mentioned embodiments, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual sizes of the products involved in the embodiments of the present disclosure.

[0018] Figure 1 A top view of a display panel in the related art;

[0019] Figure 2 for Figure 1 A cross-sectional view of the display panel along the AA' direction shown;

[0020] Figure 3 is a top view of a display panel in an embodiment of the present disclosure;

[0021] Figure 4 for Figure 3 A cross-sectional view of the display panel along the BB' direction in the illustrated embodiment;

[0022] Figure 5 is a cross-sectional view of a display panel in an embodiment of the present disclosure;

[0023] Figure 6 is a top view of another display panel in an embodiment of the present disclosure;

[0024] Figure 7 is a top view of another display panel in an embodiment of the present disclosure;

[0025] Figure 8 is a top view of another display panel in an embodiment of the present disclosure;

[0026] Fig. 9 is a top view of another display panel in an embodiment of the present disclosure;

[0027] Fig.10 is a top view of another display panel in an embodiment of the present disclosure;

[0028] Fig.11 is a top view of another display panel in an embodiment of the present disclosure;

[0029] Fig.12 for Fig.11 A cross-sectional view of the display panel along the CC' direction in the illustrated embodiment;

[0030] Fig.13 is a top view of a display motherboard in an embodiment of the present disclosure;

[0031] Fig.14 for Fig.13 A cross-sectional view of the display motherboard along line DD' in the illustrated embodiment. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in some embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present disclosure.

[0033] Unless the context requires otherwise, throughout the specification and claims, the term "including" is to be interpreted as an open, inclusive meaning, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples" or "some examples" and the like are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms do not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics described may be included in any one or more embodiments or examples in any appropriate manner.

[0034] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to 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 the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0035] When describing some embodiments, the expressions "coupled" and "connected" and their derivatives may be used. The term "connected" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. The embodiments disclosed herein are not necessarily limited to the contents of this document.

[0036] “At least one of A, B, and C” has the same meaning as “at least one of A, B, or C” and both include the following combinations of A, B, and C: A only, B only, C only, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C.

[0037] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0038] The use of "adapted to" or "configured to" herein is meant to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0039] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of variation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0040] As used herein, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within the acceptable deviation range, wherein the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism may be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity may also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality may be, for example, the difference between the two equalities is less than or equal to 5% of either one.

[0041] It will be understood that when a layer or an element is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may be present between the layer or element and the other layer or substrate.

[0042] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of the layers and the area of ​​the regions are exaggerated for clarity. Therefore, variations in the shapes relative to the drawings due to, for example, manufacturing techniques and / or tolerances are conceivable. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but include shape deviations due to, for example, manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shapes of the regions of the device, and are not intended to limit the scope of the exemplary embodiments.

[0043] The display panel is an important component for realizing the display function in a liquid crystal display. The display panel in a liquid crystal display can also be called a liquid crystal display panel. In order to improve manufacturing efficiency and reduce manufacturing costs, the array motherboard and the color film motherboard are usually boxed to obtain a display motherboard. The display motherboard has multiple panel areas arranged at intervals. By cutting the display motherboard, multiple display panels corresponding to the structures of each panel area can be obtained. In the display motherboard, a filling structure is often provided between the array motherboard and the color film motherboard arranged in the box. The filling structure can be made of the same material as the organic layer in the liquid crystal display box of the display panel and is obtained synchronously. The filling structure is located in the cutting area between the panel areas to play a structural support role for the array motherboard and the color film motherboard.

[0044] The inventors have found that if part of the organic layer is retained in the edge area of ​​the display panel cut from the display motherboard, the water vapor outside the display panel may be transferred to the inside of the display panel due to the water absorption property of the material of the organic layer, causing abnormal display function of the display panel.

[0045] The inventors also found that if the organic layer is spaced from the panel area and there is a sufficient distance, after the display motherboard is cut, the organic layer can be kept away from the cut display panel, thereby reducing the transfer of external water vapor to the inside of the display panel. However, this design will cause a gap between the array substrate and the color film substrate in the edge area of ​​the display panel, that is, the distance between the first frame sealant and the boundary of the display panel is large, so that during the production process of the display panel, the array substrate and / or the color film substrate will easily bend and deform with the frame sealant as the fulcrum due to the pressure.

[0046] Figure 1 is a top view of a display panel in the related art, Figure 2 for Figure 1 A cross-sectional view of the display panel along the AA' direction is shown. Since the cutting position of the display motherboard often needs to maintain a certain distance from the first sealant to prevent the adhesive from sticking, at least part of the gap will be retained in the display panel. Figure 1 and Figure 2 In the display panel 100, the first sealant 3 and the liquid crystal 5 are located between the first substrate 1 and the second substrate 2, the liquid crystal 5 is located in the display area 101, and the first sealant 3 is located in the edge area 102. Since there is a gap between the first substrate 1 and the second substrate 2 on the side of the first sealant 3 away from the display area 101, there is a lack of structural support, which makes it easy for the first substrate 1 and / or the second substrate 2 to warp with the first sealant 3 as a fulcrum. Figure 2The example shows the warping of the first substrate 1. The thickness of the liquid crystal display box near the warping area increases, which will cause the liquid crystal 5 to accumulate in this area. The display panel 100 may therefore have a yellowing problem in this area, affecting the user's viewing experience.

[0047] Based on this, the embodiments of the present disclosure provide a display panel and a display device. In the display panel, a second frame sealing glue and a first frame sealing glue located in the edge area are used to jointly enclose a sealed space between a first substrate and a second substrate. During the manufacturing process of the display panel, the sealed space can withstand a portion of the pressure on the first substrate and the second substrate caused by breaking the vacuum, alleviate the pressure on the edge of the display area near the sealed space, and then improve the warping of the first substrate or the second substrate at the edge of the display area, improve the thickness uniformity of the display panel, avoid the phenomenon of liquid crystal accumulation or missing at the edge of the display area, thereby improving the problem of yellowing display at the edge of the display area.

[0048] Figure 3 4 is a top view of a display panel in an embodiment of the present disclosure. Figure 4 for Figure 3 A cross-sectional view of the display panel along the BB' direction in the embodiment shown. Figure 3 and Figure 4 The embodiment of the present disclosure provides a display panel 100 , which has a display area 101 arranged along a plane where a first direction X and a second direction Y are located, and an edge area 102 surrounding the display area 101 .

[0049] Please refer to Figure 3 In some optional embodiments, the edge area 102 may surround the display area 101 .

[0050] In some optional embodiments, the shape of the display area includes but is not limited to a rectangle (refer to Figure 3 ), round (reference Fig.10 ) or elliptical, which is not limited in the embodiments of the present disclosure.

[0051] Combination Figure 3 and Figure 4 The display panel 100 includes: a first substrate 1 and a second substrate 2 which are arranged opposite to each other.

[0052] In some optional implementations, the type of the display panel may include a liquid crystal display panel. Accordingly, in some optional embodiments, one of the first substrate 1 and the second substrate 2 may be an array substrate, and the other may be a color filter substrate.

[0053] The display panel 100 further includes: a first frame sealant 3 located in the edge region 102 . The first frame sealant 3 is also located between the first substrate 1 and the second substrate 2 , and connects the first substrate 1 and the second substrate 2 . The first frame sealant 3 may surround the display region 101 .

[0054] In the embodiment of the present disclosure, the adhesion between the first frame-sealing glue 3 and the first substrate 1 and the adhesion between the first frame-sealing glue 3 and the second substrate 2 can be achieved by relying on the viscosity of the first frame-sealing glue 3 .

[0055] In some optional embodiments, the material of the first frame sealant 3 may include: epoxy resin. Based on the thermosetting property of epoxy resin, the disclosed embodiment may obtain the first frame sealant 3 by thermally curing the epoxy resin material to connect the first substrate 1 and the second substrate 2. In some examples, the epoxy resin may specifically include: thermosetting acrylate.

[0056] Combination Figure 3 and Figure 4 The first sealant 3 can surround the display area 101 in a circle, thereby cooperating with the first substrate 1 and the second substrate 2 to form a sealed box body. The sealed box body can be used as a liquid crystal display box for accommodating liquid crystals 5.

[0057] Combination Figure 3 and Figure 4 , the display panel 100 further includes: a second frame sealant 4 located in each edge region 102. The second frame sealant 4 is also located between the first substrate 1 and the second substrate 2, and connects the first substrate 1 and the second substrate 2. In the disclosed embodiment, the second frame sealant 4 is located on the side of the first frame sealant 3 away from the display region 101, and is connected to the first frame sealant 3.

[0058] In some optional embodiments, the material of the second frame sealant 4 can be the same as the material of the first frame sealant 3, so as to improve the manufacturing efficiency. And because the first frame sealant 3 and the second frame sealant 4 are connected, the same material of the first frame sealant 3 and the second frame sealant 4 can also avoid unnecessary physical and chemical reactions between the first frame sealant 3 and the second frame sealant 4.

[0059] Combination Figure 3 and Figure 4 The second frame-sealing glue 4 and the first frame-sealing glue 3 are together enclosed between the first substrate 1 and the second substrate 2 to form a sealed space.

[0060] The display panel further includes an organic layer (not shown in the figure). The organic layer is located in the display area and between the first substrate and the second substrate.

[0061] In some optional embodiments, the display panel 100 may be obtained by cutting a display motherboard, and a filling structure in the same layer as the organic layer may be provided between the color film motherboard and the array motherboard in the cutting area of ​​the display motherboard, and the filling structure is not retained in the display panel 100. The material of the organic layer may be the same as the material of the filling structure in the cutting area of ​​the display motherboard and they may be manufactured simultaneously.

[0062] The organic layer may constitute an electrical functional structure of the display panel in the display area. For example, the organic layer may be configured to reduce the parasitic capacitance of the source / drain or pixel electrode in the display panel.

[0063] In the embodiment of the present disclosure, the display panel 100 is provided with an organic layer in the display area 101 to meet the electrical function requirements of the display panel 100, but the display panel 100 may not be provided with a filling structure in the same layer as the organic layer in the edge area, so as to prevent water vapor from entering the interior of the liquid crystal display box through the same layer structure of the organic layer in the edge area, thereby avoiding functional abnormalities of the display panel. On the side where the second sealant 4 is provided in the display area 101, the second sealant 4 is used in conjunction with the first sealant 3 to form a sealed space, increase the number of layers of the colloid used to seal the liquid crystal display box, enhance the sealing effect, thereby strengthening the rejection of water vapor intrusion into the interior of the liquid crystal display box, and reducing the yellowing of the edge of the display area.

[0064] Furthermore, in the above-mentioned embodiment, the sealed space is located at the edge area of ​​the display panel, and can withstand the pressure when the vacuum is broken between the first substrate and the second substrate, thereby alleviating the pressure on the liquid crystal display box near the sealed space. Even if a filling structure in the same layer as the organic layer is not provided in the edge area of ​​the display panel 100, it can effectively play a structural support role and reduce the warping of the first substrate or the second substrate at the edge of the display area.

[0065] Figure 5 is a cross-sectional view of a display panel in an embodiment of the present disclosure. Figure 5 , in the display panel 100, compared to Figure 2 In the structure shown, due to the provision of the second frame-sealing glue 4, the portion of the first substrate 1 located on the side of the first frame-sealing glue 3 close to the display area 101 is less warped than the portion of the first substrate 1 located on the side of the first frame-sealing glue 3 away from the display area 101, so that the thickness of the liquid crystal display box at the edge of the display area is more uniform, the accumulation phenomenon of the liquid crystal 5 is weakened, and the yellowing phenomenon of the display panel 100 in this area is weakened, which helps to improve the user's viewing experience.

[0066] There are many ways to connect the second frame sealant and the first frame sealant. For example, the second frame sealant itself is a closed annular structure, and a part of the second frame sealant is connected to a part of the first frame sealant. For another example, the second frame sealant itself has an opening, and the first frame sealant is connected to the opening of the second frame sealant so that the first frame sealant is used to seal the opening of the second frame sealant.

[0067] In conjunction with the accompanying drawings, the structure of the second frame sealant is schematically described below by taking the second frame sealant itself having an opening as an example. Figure 6-Figure 9 Schematic diagrams of a top view of a display panel in an embodiment of the present disclosure are shown respectively, and Figure 6-Figure 9 Both show a portion of the first frame-sealing glue 3 and a portion of the second frame-sealing glue 4 in the display panel.

[0068] Please refer to Figure 6-Figure 9 In an optional embodiment, the second sealant 4 includes: a first sealing portion 41 and at least two second sealing portions 42. The first sealing portion 41 extends along the first direction X, and the second sealing portion 42 extends along the second direction Y. The arrangement direction of the first sealant 3 and the second sealant 4 is the third direction Z, the first direction X intersects with the third direction Z, and the second direction Y intersects with the first direction X.

[0069] Through the above embodiments, the number and position configuration of the first sealing portion 41 and the second sealing portion 42 can be flexibly utilized to achieve the setting of the number and position of the sealed spaces, which helps to further improve the yellowing of the edge of the display area in a targeted manner.

[0070] In some optional embodiments, in any display panel, the number of the sealed space may be at least one, wherein the number of the sealed space is related to the arrangement of the first sealing portion and the second sealing portion.

[0071] In some optional embodiments, the number of the sealed space is one.

[0072] At this time, if Figure 6 As shown, the second sealant 4 includes a first sealant 41 and two second sealants 42. Furthermore, the two second sealants 42 respectively connect the two ends of the first sealant 41 to the first sealant 3 to enclose a sealed space between the first substrate and the second substrate.

[0073] In some other optional embodiments, there may be a plurality of sealed spaces, and the arrangement of the plurality of sealed spaces may be selected and set according to actual needs.

[0074] In some examples, the plurality of sealed spaces are sequentially arranged along the first direction X at intervals.

[0075] In this case, for example, in the same display panel, the number of sealed spaces may be equal to the difference between the number of second sealing portions and the number of first sealing portions.

[0076] Optionally, refer to Figure 7 In the exemplary display panel, there are two first sealing parts 41 and four second sealing parts 42 in the same display panel, wherein two second sealing parts 42 respectively connect two ends of one first sealing part 41 to the first frame sealant 3, and every two second sealing parts 42 can enclose one first sealing part 41 between the first substrate and the second substrate to form a sealed space. Figure 7 The four second sealing parts 42 and the two first sealing parts 41 may enclose two sealed spaces between the first substrate and the second substrate.

[0077] Optionally, refer to Figure 8 In the display panel shown as an example, in the same display panel, the number of the first sealing part 41 is one, and the number of the second sealing parts 42 is three, two of the three second sealing parts 42 respectively connect the two ends of the first sealing part 41 to the first frame-sealing glue 3, and the other second sealing part 42 of the three second sealing parts 42 connects the middle section of the first sealing part 41 to the first frame-sealing glue 3, thereby enclosing two sealed spaces between the first substrate and the second substrate.

[0078] In some other examples, the plurality of sealed spaces are sequentially spaced apart from each other along the second direction.

[0079] Optionally, refer to Fig. 9 In the exemplary display panel, there are two first sealing parts 41 in the same display panel, and the two first sealing parts are arranged at intervals along the second direction; there are two second sealing parts 42, and the two second sealing parts 42 are arranged at intervals along the first direction. One of the second sealing parts 42 connects the first ends of the two first sealing parts 41 and the first sealant 3, and the other second sealing part 42 connects the second ends of the two first sealing parts 41 and the first sealant 3, so as to form a sealed space between two adjacent first sealing parts 41, and to form a sealed space between a first sealing part 41 close to the first sealant 3 and the first sealant 3.

[0080] In an optional embodiment, the distance between the first sealing portion 41 and the portion of the first frame sealant 3 closest to the first sealing portion 41 is equal everywhere, and accordingly, the width of the sealing space can be equal everywhere along the second direction Y. In this way, the substrate warping phenomenon in the area near the edge of the display area 101 can be uniformly improved.

[0081] It is understandable that the angle between the first direction X and the third direction Z can be a right angle or an acute angle, etc. In each of the drawings, the first direction X and the third direction Z are perpendicular to each other as an example, and similarly, the first direction X and the second direction Y are perpendicular to each other as an example.

[0082] Specifically, Figure 6 The case where the display area is a rectangle is also exemplarily shown. Figure 6 The second sealant 4 can be connected to a portion of the first sealant 3 located on one side of the rectangular display area to enclose a sealed space. The sealed space can be strip-shaped, and the extension direction of the strip-shaped sealed space can be perpendicular to the arrangement direction of the first sealant 3 and the second sealant 4.

[0083] It should be noted that the second frame sealant can be set at a portion of the edge area of ​​any of the following sides of the display panel: data binding side (DP), data binding opposite side (DPO), gate side (GP), gate opposite side (GPO). Therefore, the design of the second frame sealant in the embodiment of the present disclosure can be specifically set at one, multiple or a full circle of the edge of the display panel.

[0084] Through the above embodiments, the position of the second frame sealant relative to the display area can be determined according to the position of the area where yellowing actually occurs in the display panel product, that is, if the edge of the display area on which side is yellow, the second frame sealant is set at the edge of the display panel on this side, thereby achieving targeted improvement of the display panel.

[0085] Since sufficient space needs to be reserved on the data binding side of the display panel to complete the electrical binding with the functional components or flexible circuit board, the gap size corresponding to the edge area of ​​the display panel on the data binding side is larger, the "seesaw" phenomenon is more obvious, and the first substrate and / or the second substrate is more likely to warp on the data binding side with the first frame sealing glue as the fulcrum. Therefore, the problem of yellowing at the edge of the display area is particularly likely to occur on the data binding side of the display panel.

[0086] To this end, in some optional embodiments, the second frame-sealing glue may be located on the data binding side of the display panel, so as to improve the problem of yellowing of a part of the display area on the data binding side of the display panel.

[0087] In combination with the above embodiments, Figure 7 It also shows the situation where the second sealant is set on the data binding side, please refer to Figure 7 In an optional embodiment, the second sealant 4 is located on the data binding side of the display panel 100. Figure 3) The portion located at the data binding side of the display panel 100 has at least one binding area 1021, and any sealed space at least partially overlaps with the binding area 1021. The binding area 1021 may be an area on the display panel for electrical binding with functional components or a flexible circuit board.

[0088] Please refer to Figure 7 In some optional embodiments, the number of sealed spaces may be the same as the number of binding areas 1021. The sealed spaces and binding areas 1021 may be arranged in a one-to-one correspondence.

[0089] In some other optional embodiments, the number of sealed spaces may be less than the number of binding areas, wherein one sealed space may be arranged corresponding to at least two binding areas.

[0090] In some optional embodiments, along the first direction, the size of the sealed space may be larger than the size of the binding area overlapping with the sealed space, so as to ensure the improvement effect on the yellowing of the display.

[0091] Through the above-mentioned embodiments, a sealed space can be set according to the position of the binding area, so as to improve the yellowing of the display at the edge of the display area close to the binding area.

[0092] Please refer to Figure 3 In some embodiments, along the first direction X, the size of the sealed space is greater than or equal to 80% of the size of the display area 101. Thus, by providing a sealed space of sufficient size, it is possible to improve the effect of improving the yellowing problem of the display.

[0093] Exemplarily, along the first direction, the size of the sealed space and the size of the display area may have, but is not limited to, any of the following ratios: 80%, 85%, 90%, 95%, 100%.

[0094] refer to Figure 4 In some optional embodiments, the first substrate 1 includes a color filter substrate, and the second substrate 2 includes an array substrate. The distance between the second sealant 4 and the boundary of the first substrate 1 is smaller than the distance between the second sealant 4 and the boundary of the second substrate 2.

[0095] Accordingly, in some optional embodiments, the orthographic projection of the first substrate 1 on the second substrate 2 is smaller than that of the second substrate 2 .

[0096] Therefore, after the display motherboard is cut, the color filter substrate shrinks toward the display area due to its material characteristics. The distance relationship between the second sealant 4 and the boundaries of the first substrate 1 and the second substrate 2 is helpful for the production of the display panel.

[0097] In combination with the above embodiments, in some optional implementations, the distance between the second frame-sealing glue 4 and the boundary of the first substrate 1 is not less than 100 μm and not more than 200 μm, and / or the distance between the second frame-sealing glue 4 and the boundary of the second substrate 2 is not less than 150 μm and not more than 250 μm.

[0098] For example, the distance between the second sealant 4 and the boundary of the first substrate 1 may include, but is not limited to, 120 μm, 140 μm, 160 μm, 180 μm, and 200 μm. The distance between the second sealant 4 and the boundary of the second substrate 2 may include, but is not limited to, 150 μm, 180 μm, 200 μm, 220 μm, and 250 μm.

[0099] Please combine Figure 4 and Figure 5 In an optional implementation, the color filter substrate includes: a black matrix 11.

[0100] Please combine Figure 4 and Figure 5 In an optional implementation, the color filter substrate may further include a plurality of filter units 12 .

[0101] Exemplarily, the filter unit 12 may include a red (R) filter unit, a green (G) filter unit, and a blue (B) filter unit. In some embodiments, the filter unit 12 and the black matrix 11 are located in the display area 101 and may also extend to a partial area near the edge of the display panel 100.

[0102] Please refer to Figure 4 In an optional embodiment, the distance between the black matrix 11 and the boundary of the color filter substrate is not less than 100 μm and not more than 200 μm, and / or the distance between the orthographic projection of the second frame sealing glue 4 on the black matrix 11 and the boundary of the black matrix 11 is not more than 100 μm.

[0103] The second frame-sealing glue 4 is located at a side of the boundary of the black matrix 11 close to the display area 101 .

[0104] Exemplarily, the spacing between the black matrix 11 and the boundary of the color film substrate can be but not limited to any of the following values: 100μm, 120μm, 150μm, 180μm, 200μm, and the spacing between the orthographic projection of the second frame sealing glue 4 on the black matrix 11 and the boundary of the black matrix 11 can be but not limited to any of the following values: 20μm, 40μm, 60μm, 80μm, 100μm.

[0105] Through the above embodiment, the black matrix 11 can maintain a certain distance from the boundary of the color filter substrate to avoid burrs caused by cutting. The second frame sealant 4 has a certain distance from the boundary of the black matrix 11, which can effectively prevent the second frame sealant 4 from overflowing due to the thickness difference of the black matrix 11 during the production process of the second frame sealant, thereby ensuring the dimensional accuracy of the second frame sealant.

[0106] Please refer to Figure 4 In an optional embodiment, along the arrangement direction of the first frame sealant 3 and the second frame sealant 4, that is, the third direction Z, the ratio of the distance D2 between the second frame sealant 4 and the first frame sealant 3 to the size D1 of the second frame sealant 4 is not less than 80% and not more than 120%.

[0107] Exemplarily, along the arrangement direction of the first frame sealant 3 and the second frame sealant 4, the distance D2 between the second frame sealant 4 and the first frame sealant 3 and the size D1 of the second frame sealant 4 can be but not limited to any of the following ratios: 80%, 90%, 100%, 110%, 120%.

[0108] For further information, please refer to Figure 4 In an optional implementation, along the arrangement direction of the first frame sealant 3 and the second frame sealant 4 , the distance D2 between the second frame sealant 4 and the first frame sealant 3 may be equal to the size D1 of the second frame sealant 4 .

[0109] For example, along the arrangement direction of the first frame sealant 3 and the second frame sealant 4 , the distance D2 between the second frame sealant 4 and the first frame sealant 3 , and the size D1 of the second frame sealant 4 may both be 400 μm.

[0110] Please refer to Figure 4 In combination with the above embodiments, in an optional implementation, the spacing D2 between the second frame sealant 4 and the first frame sealant 3 is not less than 300 μm and not more than 500 μm. And / or, along the arrangement direction of the first frame sealant 3 and the second frame sealant 4, the size D1 of the second frame sealant 4 is not less than 300 μm and not more than 500 μm. And / or, along the arrangement direction of the first frame sealant 3 and the second frame sealant 4, the size D3 of the first frame sealant 3 is not less than 1000 μm and not more than 1500 μm. And / or, the spacing between the second frame sealant 4 and the cutting area 103 is not less than 100 μm and not more than 200 μm.

[0111] Exemplarily, the spacing D2 between the second frame sealant 4 and the first frame sealant 3 can be, but is not limited to, any of the following: 300μm, 350μm, 400μm, 450μm, 500μm. Along the arrangement direction of the first frame sealant 3 and the second frame sealant 4, the size D1 of the second frame sealant 4 can be, but is not limited to, any of the following: 300μm, 350μm, 400μm, 450μm, 500μm. Along the arrangement direction of the first frame sealant 3 and the second frame sealant 4, the size D3 of the first frame sealant 3 can be, but is not limited to, any of the following: 1000μm, 1100μm, 1200μm, 1300μm, 1400μm, 1500μm. The spacing between the second frame sealant 4 and the cutting area 103 can be, but is not limited to, any of the following: 100μm, 120μm, 140μm, 170μm, 200μm.

[0112] Reference Fig.10 , Fig.10 FIG. 1 is a top view of another display panel in an embodiment of the present disclosure. Fig.10 As shown, in another optional implementation, the first frame sealant 3 and the first sealing portion 41 may be arc-shaped structures, so as to be suitable for an elliptical or circular display area.

[0113] like Fig.10 As shown, in an optional implementation manner, the distance between the first sealing portion 41 and the first frame sealing glue 3 can be equal everywhere.

[0114] like Fig.10 As shown, in an optional embodiment, the second sealing portion 42 may also be an arc-shaped structure.

[0115] like Fig.10 As shown, taking a circular display area as an example, in some examples, the first frame sealant 3 and the second frame sealant 4 can be arc-shaped, the first frame sealant 3 and the first sealing portion 41 can be concentric arcs, the first sealing portion 41 is connected to the first frame sealant 3 through the second sealing portion 42, and a sealed space is formed between the first substrate and the second substrate.

[0116] Please refer to Figure 4 In some optional implementations, the display panel may further include: a liquid crystal 5 located in the display area 101 , wherein the liquid crystal 5 is located between the first substrate 1 and the second substrate 2 .

[0117] In some optional implementations, the display panel may be manufactured by a liquid crystal dripping method or a liquid crystal perfusion method.

[0118] In the case of obtaining a display panel by a liquid crystal dripping method, the liquid crystal can be dripped into a specific area (hereinafter referred to as the liquid crystal dripping area) on the first substrate or the second substrate, and then the first substrate and the second substrate are aligned to obtain a display panel having a liquid crystal, and then the display panel is obtained by cutting the display panel. Among them, the distance between the boundary of the liquid crystal dripping area and the boundary of the display area can be determined according to the box thickness at the edge of the display area. Exemplarily, the liquid crystal dripping area can be located in the display area and is smaller than the display area. If the box thickness at the edge of the display area is greater than the box thickness of the remaining areas, the distance between the boundary of the liquid crystal dripping area and the boundary of the display area can be increased, that is, the area of ​​liquid crystal dripping is shrunk. On the contrary, if the box thickness at the edge of the display area is less than the box thickness of the remaining areas, the distance between the boundary of the liquid crystal dripping area and the boundary of the display area can also be reduced.

[0119] In this case, the disclosed embodiment can also ensure uniform distribution of liquid crystal at the edge of the display area by changing the first drop distance of the liquid crystal (the first drop position of the liquid crystal is usually at the boundary of the liquid crystal drop area, and the first drop distance is also the distance between the boundary of the liquid crystal drop area and the boundary of the display area), thereby helping to improve the problem of yellowing display at the edge of the display area of ​​the display panel.

[0120] Fig.11 It is a top view of another display panel in the embodiment of the present disclosure. Fig.12 for Fig.11 A cross-sectional view of the display panel along the CC' direction in the embodiment shown. Fig.11 and Fig.12 The embodiment of the present disclosure further provides a display panel 100 , which has a display area 101 arranged along a plane where a first direction X and a second direction Y are located, and an edge area 102 surrounding the display area 101 .

[0121] The display panel 100 includes: a first frame sealant 3, a second frame sealant 4, and a first substrate 1 and a second substrate 2 that are arranged opposite to each other.

[0122] The first sealant 3 and the second sealant 4 are located in the edge region 102 and between the first substrate 1 and the second substrate 2 , and connect the first substrate 1 and the second substrate 2 . The first sealant 3 surrounds the display region 101 , and the second sealant 4 surrounds the first sealant 3 .

[0123] The second frame-sealing glue 4 and the first frame-sealing glue 3 are together enclosed between the first substrate 1 and the second substrate 2 to form a sealed space.

[0124] Through the above embodiments, the yellowing of the display at multiple edges of the display area can be improved.

[0125] In combination with the above embodiments, in some optional embodiments, the second frame sealant may be connected to the first frame sealant at at least one location, thereby forming two or more sealed spaces with the first substrate and the second substrate, wherein the sealed spaces surround at least a portion of the display area.

[0126] Reference Fig.13 and Fig.14 , Fig.13 The figure is a top view of a display motherboard in an embodiment of the present disclosure. Fig.14 for Fig.13 A cross-sectional view of the display motherboard along the DD' direction in the embodiment shown. Fig.13 and Fig.14 The embodiment of the present disclosure also provides a display motherboard 200, which can be used to manufacture the display panel in the above embodiment.

[0127] The display motherboard 200 has a plurality of panel areas arranged at intervals, and the panel areas include a display area 101 and an edge area 102 . By cutting the display motherboard 200 , a plurality of display panels corresponding to the structures where the panel areas are located can be obtained.

[0128] Combination Fig.13 and Fig.14 The display motherboard 200 may have a display area 101, an edge area 102 surrounding the display area 101, and a cutting area 103 surrounding the edge area 102. The display motherboard 200 includes: a first motherboard 21 and a second motherboard 22 that are oppositely disposed.

[0129] The first substrate in the above embodiment may be the portion of the first motherboard 21 located in the display area 101 and the edge area 102 , and the second substrate 2 may be the portion of the second motherboard 22 located in the display area 101 and the edge area 102 .

[0130] Combination Fig.13 and Fig.14 The display motherboard 200 also includes: a first frame sealant 3 and a second frame sealant 4 located in the edge area 102 , and the first frame sealant 3 and the second frame sealant 4 are also located between the first motherboard 21 and the second motherboard 22 , and connect the first motherboard 21 and the second motherboard 22 .

[0131] The first frame sealing glue 3 surrounds the display area 101 , and the second frame sealing glue 4 is located at a side of the first frame sealing glue 3 away from the display area 101 .

[0132] The second frame-sealing adhesive 4 is connected to the first frame-sealing adhesive 3 , and together encloses a sealed space between the first motherboard 21 and the second motherboard 22 .

[0133] In some optional implementations, the display panel in the above embodiment may be obtained by removing the portion of the display motherboard 200 in the cutting area 103. The portion of the display motherboard 200 located in one panel area may constitute one display panel.

[0134] Combination Fig.13 and Fig.14 In an optional embodiment, the display motherboard 200 further includes: a filling structure 6 located in the cutting area 103, and the filling structure 6 is also located between the first motherboard 21 and the second motherboard 22 to support the first motherboard 21 and / or the second motherboard 22.

[0135] refer to Fig.14 , the distance between the filling structure 6 and the second frame sealing glue 4 is not less than 1000 μm and not more than 3000 μm.

[0136] For example, the distance between the filling structure 6 and the second frame-sealing glue 4 may be, but is not limited to, any one of the following: 1000 μm, 1500 μm, 2000 μm, 2500 μm, or 3000 μm.

[0137] In some optional implementations, an evaporation process may be used, and a mask plate may be used to cover a portion of the area, so that there is a distance between the filling structure 6 obtained by evaporation and the edge area.

[0138] Furthermore, in some optional embodiments, the display motherboard may further include: a third frame sealant (not shown) located in the cutting area, and the third frame sealant is located between the first motherboard and the second motherboard. Exemplarily, the third frame sealant may be located on a side of the filling structure away from the display area.

[0139] The third frame sealant can be used to improve the structural stability of the display panel. In some embodiments, the material of the third frame sealant can be the same as that of the first frame sealant.

[0140] refer to Fig.14 In an optional embodiment, the display motherboard 200 may further include in the edge region 102: a retaining wall 7 located on the side of the first frame sealant 3 away from the second frame sealant 4, and the retaining wall 7 may be retained in the actual panel to limit the liquid crystal.

[0141] In an optional embodiment, along the third direction Z, the cross-section of the retaining wall 7 may be trapezoidal or rectangular.

[0142] An embodiment of the present disclosure further provides a display device, comprising: a display panel as in any of the above embodiments.

[0143] Illustratively, the display device may include a liquid crystal display module.

[0144] Exemplarily, the display device may also include electronic devices such as smart wearable devices, mobile phones, and tablet computers.

[0145] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be thought of by any person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A display panel, characterized in that: The display panel has a display area and an edge area surrounding the display area; The display panel comprises: a first frame sealant, a second frame sealant, an organic layer, and a first substrate and a second substrate arranged opposite to each other; The first frame sealant and the second frame sealant are located in the edge area, and are located between the first substrate and the second substrate, and also connect the first substrate and the second substrate; the first frame sealant surrounds the display area, and the second frame sealant is located on a side of the first frame sealant away from the display area; The organic layer is located in the display area and between the first substrate and the second substrate; The second frame-sealing adhesive is connected to the first frame-sealing adhesive and together encloses a sealed space between the first substrate and the second substrate.

2. The display panel according to claim 1, characterized in that: The first substrate includes a color filter substrate, and the second substrate includes an array substrate; The distance between the second frame-sealing adhesive and the boundary of the first substrate is smaller than the distance between the second frame-sealing adhesive and the boundary of the second substrate.

3. The display panel according to claim 2, characterized in that: The distance between the second frame sealant and the boundary of the first substrate is not less than 100 μm and not more than 200 μm, and / or the distance between the second frame sealant and the boundary of the second substrate is not less than 150 μm and not more than 250 μm.

4. The display panel according to claim 2, characterized in that: The color film substrate comprises: a black matrix; The distance between the black matrix and the boundary of the color film substrate is not less than 100 μm and not more than 200 μm, and / or the distance between the orthographic projection of the second frame sealing glue on the black matrix and the boundary of the black matrix is ​​not more than 100 μm.

5. The display panel according to claim 1, characterized in that: The distance between the second frame-sealing glue and the first frame-sealing glue is not less than 300 μm and not more than 500 μm; and / or, Along the arrangement direction of the first frame-sealing glue and the second frame-sealing glue, the size of the second frame-sealing glue is not less than 300 μm and not more than 500 μm; and / or, Along the arrangement direction of the first frame-sealing glue and the second frame-sealing glue, the size of the first frame-sealing glue is not less than 1000 μm and not more than 1500 μm.

6. The display panel according to claim 1, characterized in that: The second frame sealant comprises: a first sealing portion and at least two second sealing portions; The first sealing portion extends along a first direction, and the second sealing portion extends along a second direction; The arrangement direction of the first frame-sealing glue and the second frame-sealing glue is a third direction, the first direction intersects with the third direction, and the second direction intersects with the first direction.

7. The display panel according to claim 6, characterized in that: Along the first direction, a size of the sealed space is greater than or equal to 80% of a size of the display area.

8. The display panel according to claim 1, characterized in that: The second frame sealing glue is located on the data binding side of the display panel.

9. The display panel according to claim 8, characterized in that: The portion of the edge region located on the data binding side of the display panel has at least one binding region, and any of the sealed spaces at least partially overlaps with the binding region; Along the edge direction of the display panel on the data binding side, the size of any one of the sealed spaces is larger than the size of the binding area overlapping with the sealed space.

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

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