Display mother board, preparation method thereof, display panel and display device

Abstract

The invention discloses a display mother board and a preparation method thereof, a display panel and a display device. The display mother board comprises a first substrate; the second substrate is arranged opposite to the first substrate; the auxiliary frame glue is arranged between the first substrate and the second substrate, the auxiliary frame glue comprises first auxiliary frame glue and second auxiliary frame glue, the first auxiliary frame glue is arranged in the peripheral area of the display mother board, at least part of the second auxiliary frame glue is arranged in the peripheral area of the display mother board, the projection of the first auxiliary frame glue on the first substrate comprises a first closed pattern, and the projection of the second auxiliary frame glue on the second substrate comprises a second closed pattern. The projection of the second auxiliary frame glue on the first substrate comprises a second closed pattern, the second closed pattern is located in the first closed pattern, the first auxiliary frame glue and the second auxiliary frame glue are arranged, the projection of the first auxiliary frame glue on the first substrate comprises the first closed pattern, and the projection of the second auxiliary frame glue on the first substrate comprises the second closed pattern. The sealing effect and the supporting effect can be improved, and then the stability and reliability of the display mother board can be improved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display motherboard and a preparation method thereof, a display panel and a display device. Background Art

[0002] During the manufacturing process of large panels of liquid crystal displays, the first substrate and the second substrate need to be bonded together, the edges of the large panel need to be sealed with glue, and finally a high-temperature and high-pressure coating process is performed. Frame glue plays an important role in this process.

[0003] Currently, auxiliary sealants applied to the exterior of display motherboards are categorized as either closed or open-loop, depending on whether or not they have openings. The open-loop type presents challenges with post-process sealing and the possibility of the main sealant peeling off, leading to liquid crystal leakage, impacting product production capacity and yield. The sealed type, on the other hand, presents challenges with puncture and poor sealing, leading to the main frame peeling off and liquid crystal leakage, also impacting product yield. Summary of the Invention

[0004] A display motherboard and a manufacturing method thereof, a display panel, and a display device provided by the embodiments of the present invention can improve the sealing effect and the supporting effect, thereby improving the stability and reliability of the display motherboard.

[0005] In a first aspect, an embodiment of the present invention provides a display motherboard, comprising:

[0006] a first substrate;

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

[0008] An auxiliary frame glue is arranged between the first substrate and the second substrate, and the auxiliary frame glue includes a first auxiliary frame glue and a second auxiliary frame glue. The first auxiliary frame glue is arranged in the peripheral area of the display motherboard, and at least part of the second auxiliary frame glue is arranged in the peripheral area of the display motherboard. The projection of the first auxiliary frame glue on the first substrate includes a first closed figure, and the projection of the second auxiliary frame glue on the first substrate includes a second closed figure, and the second closed figure is located within the first closed figure.

[0009] In a second aspect, an embodiment of the present invention further provides a method for preparing a display motherboard, for preparing the display motherboard described in the first aspect, the method comprising:

[0010] providing a first substrate and a second substrate;

[0011] forming a first auxiliary sealant and a second auxiliary sealant on one side of the first substrate;

[0012] The first substrate and the second substrate are arranged opposite to each other to form the display motherboard;

[0013] In which, the first auxiliary frame glue is arranged in the peripheral area of the display motherboard, at least part of the second auxiliary frame glue is arranged in the peripheral area of the display motherboard, the projection of the first auxiliary frame glue on the first substrate includes a first closed figure, the projection of the second auxiliary frame glue on the first substrate includes a second closed figure, and the second closed figure is located within the first closed figure.

[0014] In a third aspect, an embodiment of the present invention further provides a display panel formed by cutting the display motherboard described in the first aspect.

[0015] In a fourth aspect, an embodiment of the present invention further provides a display device, comprising the display panel described in the third aspect.

[0016] The technical solution provided by the embodiment of the present invention is to set an auxiliary frame glue between the first substrate and the second substrate, so that the auxiliary frame glue can support the first substrate and the second substrate, thereby ensuring the stability of the first substrate and the second substrate, which is conducive to improving the stability of the display motherboard. The auxiliary frame glue includes a first auxiliary frame glue and a second auxiliary frame glue. The first auxiliary frame glue and the second auxiliary frame glue are set in the peripheral area of the display motherboard. The projection of the first auxiliary frame glue on the first substrate includes a first closed figure, and the projection of the second auxiliary frame glue on the first substrate includes a second closed figure. The second closed figure is located within the first closed figure. In this way, the sealing effect of the first auxiliary frame glue and the second auxiliary frame glue is better, which can prevent problems such as liquid crystal puncture, thereby ensuring the sealing effect of the display motherboard and improving the stability and reliability of the display motherboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic top view of a first display motherboard in the prior art;

[0018] Figure 2 Schematic top view of a second display motherboard in the prior art;

[0019] Figure 3 A schematic top view of a first display motherboard provided by an embodiment of the present invention;

[0020] Figure 4 for Figure 3 A schematic diagram of a cross-sectional structure of a display motherboard along section line A1-A2 is provided;

[0021] Figure 5 for Figure 3 A schematic diagram of a cross-sectional structure of a display motherboard along section line A3-A4 is provided;

[0022] Figure 6 A schematic top view of a display motherboard cut along a cutting line into individual display panels;

[0023] Figure 7 A schematic top view of a second display motherboard provided by an embodiment of the present invention;

[0024] Figure 8 A schematic top view of a third display motherboard provided by an embodiment of the present invention;

[0025] Figure 9 A schematic top view of a fourth display motherboard provided by an embodiment of the present invention;

[0026] Figure 10 A schematic top view of a fifth display motherboard provided by an embodiment of the present invention;

[0027] Figure 11 A schematic top view of a sixth display motherboard provided by an embodiment of the present invention;

[0028] Figure 12 A schematic top view of a seventh display motherboard provided by an embodiment of the present invention;

[0029] Figure 13 A schematic top view of an eighth display motherboard provided by an embodiment of the present invention;

[0030] Figure 14 A schematic top view of a ninth display motherboard provided by an embodiment of the present invention;

[0031] Figure 15 A schematic top view of a tenth display motherboard provided by an embodiment of the present invention;

[0032] Figure 16 for Figure 15 A schematic diagram of a cross-sectional structure of a display motherboard along section line A5-A6 is provided;

[0033] Figure 17 A schematic top view of an eleventh display motherboard provided by an embodiment of the present invention;

[0034] Figure 18 A schematic top view of a twelfth display motherboard provided by an embodiment of the present invention;

[0035] Figure 19 A schematic flow chart of a first method for preparing a display motherboard according to an embodiment of the present invention;

[0036] Figure 20 A schematic flow chart of a second method for preparing a display motherboard provided by an embodiment of the present invention;

[0037] Figure 21 A schematic flow chart of a third method for preparing a display motherboard provided by an embodiment of the present invention;

[0038] Figure 22A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0040] Before introducing the technical solutions of the embodiments of the present invention in detail, the technical problems existing in the prior art are first described.

[0041] Figure 1 FIG. 1 is a top view of a first display motherboard in the prior art. Figure 2 FIG. 1 is a top view of a second display motherboard in the prior art. Figure 1 and Figure 2 As shown, the display motherboard includes multiple display panels 20' and auxiliary sealant 100', and the auxiliary sealant 100' is set in the peripheral area of the display motherboard, and the display panel 20' is located inside the peripheral area. Figure 1 As shown, the auxiliary sealant 100' is sealed, that is, the projection of the auxiliary sealant 100' on the first substrate is a closed pattern. Figure 2 As shown, the auxiliary sealant 100 ′ is open-loop, that is, the projection of the auxiliary sealant 100 ′ on the first substrate is open-loop, not closed.

[0042] Continue to refer Figure 2 For the open-loop auxiliary sealant 100', due to the existence of the opening, there is gas inside the display motherboard, which causes air rush and prevents the normal sealing. In addition, in the vacuum heating environment of the coating, the pressure difference between the inside and outside causes the main sealant to fall off, resulting in liquid crystal leakage, which in turn affects the product production capacity and yield.

[0043] Continue to refer Figure 1 For the sealed auxiliary frame glue 100', the deformation of the display motherboard causes puncture to worsen, and the sealing effect is affected by the external atmospheric pressure. Like the open-loop mechanism, it causes the main frame glue to fall off, resulting in liquid crystal leakage, which in turn affects the product production capacity and yield.

[0044] In order to solve the technical problems existing in the prior art, the technical solutions of the embodiments of the present invention are proposed, and the technical solutions of the embodiments of the present invention are described in detail below.

[0045] Figure 3 A schematic top view of a first display motherboard provided by an embodiment of the present invention, Figure 4 for Figure 3A schematic diagram of a cross-sectional structure of a display motherboard along the section line A1-A2 is provided. Figure 5 for Figure 3 A schematic diagram of a cross-sectional structure of a display motherboard along the section line A3-A4 is provided, as shown in FIG. Figure 3-Figure 5 As shown, the display motherboard 10 includes: a first substrate 110; a second substrate 120, which is arranged opposite to the first substrate 110; an auxiliary frame glue 100, which is arranged between the first substrate 110 and the second substrate 120, and the auxiliary frame glue 100 includes a first auxiliary frame glue 101 and a second auxiliary frame glue 102. The first auxiliary frame glue 101 is arranged in the peripheral area of the display motherboard, and at least part of the second auxiliary frame glue 102 is arranged in the peripheral area of the display motherboard. The projection of the first auxiliary frame glue 101 on the first substrate 110 includes a first closed figure a1, and the projection of the second auxiliary frame glue 102 on the first substrate 110 includes a second closed figure a2, and the second closed figure a2 is located within the first closed figure a1.

[0046] Specifically, the peripheral area of the display motherboard can be understood as the four edges of the display motherboard 10 .

[0047] Specifically, the first substrate 110 may be an array substrate, and the second substrate 120 may be a color filter substrate. Taking the liquid crystal display panel as an example, the array substrate includes a plurality of thin film transistors 1101 arranged in an array. The thin film transistors 1101 are electrically connected to the pixel electrodes 1102 and are used to provide data signals to the pixel electrodes 1102 to form an electric field between the pixel electrodes 1102 and the common electrode 1103, thereby controlling the liquid crystal molecules in the liquid crystal layer 1104 to deflect in the plane under the action of the electric field, so as to provide a plurality of thin film transistors 1101 in an array. Figure 5 The color filter substrate (not shown) modulates the light emitted by the substrate to achieve the display function of the liquid crystal display panel. The color filter substrate includes multiple color filter units 1201 and multiple light shielding units 1202. The color filter units 1201 can include red filter units, green filter units, and blue filter units to achieve the color display function of the display panel. The light shielding unit 1202 is arranged between two adjacent color filter units to prevent the light emitted by different color filter units from mixing colors, blocking the pixel circuit structure such as transistors, and ensuring the display effect of the display panel.

[0048] For example, Figure 5 Taking the common electrode 1103 located on the first substrate 110 as an example, that is, the pixel electrode 1102 and the common electrode 1103 are located on the same side of the liquid crystal layer 1104, thereby forming a horizontal electric field to drive the liquid crystal molecules to deflect. It is understood that the common electrode 1103 can also be located on the second substrate 120, that is, the pixel electrode 1102 and the common electrode 1103 can also be located on different sides of the liquid crystal layer, thereby forming a vertical electric field to drive the liquid crystal molecules to deflect. The embodiments of the present invention do not limit the specific configuration of the liquid crystal display panel.

[0049] It should be noted that the common electrode 1103 is connected to a common voltage signal line, and the common voltage signal line provides a common voltage signal to the common electrode. Figure 5 The cross-section position in does not cut to the position where the two are connected. Figure 5 The thin film transistor 1101 shown is a bottom-gate transistor as an example. It can be understood that in other embodiments, the thin film transistor 1101 can be a top-gate transistor, or the thin film transistor 1101 can be a dual-gate transistor including both a top gate and a bottom gate. The specific implementation can be designed according to actual conditions, and the embodiments of the present invention are not limited to this.

[0050] Specifically, such as Figure 3 and Figure 4 As shown, the auxiliary sealant 100 is disposed between the first substrate 110 and the second substrate 120. Thus, the auxiliary sealant 100 can support the first substrate 110 and the second substrate 120, thereby ensuring the stability of the first substrate 110 and the second substrate 120. Furthermore, the auxiliary sealant 100 includes a first auxiliary sealant 101 and a second auxiliary sealant 102. The first auxiliary sealant 101 and the second auxiliary sealant 102 are disposed in the peripheral area of the display motherboard. Thus, by disposing two circles of auxiliary sealant 100 in the peripheral area of the display motherboard, the support effect of the first substrate 110 and the second substrate 120 can be further improved, thereby further improving the stability of the display motherboard.

[0051] Specifically, such as Figure 3 and Figure 4 As shown, the projection of the first auxiliary sealant 101 on the first substrate 110 includes a first closed figure a1, and the projection of the second auxiliary sealant 102 on the first substrate 110 includes a second closed figure a2. The second closed figure a2 is located within the first closed figure a1. In other words, the first closed figure a1 surrounds the second closed figure a2, that is, the first auxiliary sealant 101 surrounds the second auxiliary sealant 102. In other words, two circles of closed auxiliary sealant are provided around the periphery of the display motherboard. Compared with the single circle of auxiliary sealant in the prior art, the technical solution of the embodiment of the present invention can ensure the sealing effect of the display motherboard while improving the support effect between the first substrate 110 and the second substrate 120. This can prevent the main sealant from falling off due to the internal and external pressure difference in the vacuum heating environment of the coating, thereby causing the problem of liquid crystal leakage.

[0052] The display motherboard provided by an embodiment of the present invention is provided with auxiliary frame glue between the first substrate and the second substrate. The auxiliary frame glue includes a first auxiliary frame glue and a second auxiliary frame glue. The first auxiliary frame glue and the second auxiliary frame glue are provided in the peripheral area of the display motherboard. The projection of the first auxiliary frame glue on the first substrate includes a first closed figure. The projection of the second auxiliary frame glue on the first substrate includes a second closed figure. The second closed figure is located within the first closed figure. In this way, on the one hand, by providing two circles of auxiliary frame glue, the support effect of the first substrate and the second substrate can be improved. On the other hand, by providing the sealed first auxiliary frame glue and the second auxiliary frame glue, the sealing effect of the display motherboard can be improved, thereby preventing problems such as liquid crystal puncture and improving the stability and reliability of the display motherboard.

[0053] Optional, Figure 6 This is a top view of a motherboard cut along a cutting line into individual display panels. Figure 3 and Figure 6 The display motherboard 10 includes a plurality of display panels 20 divided by cutting lines 30 , and each display panel 20 has a display area AA and a frame area NA.

[0054] Continue to refer Figure 3 By cutting the display motherboard 10 along the cutting line 30 , a plurality of independent display panels 20 can be obtained.

[0055] Specifically, the display panel 20 may include a display area AA and a frame area NA. A plurality of pixel units, pixel circuits, and signal lines may be provided in the display area AA. The pixel circuits are electrically connected to the pixel units for providing display signals to the pixel units. The signal lines may be electrically connected to the pixel circuits or serve as signal lines for other auxiliary functions. For example, the signal lines include scan signal lines and data signal lines. The scan signal lines may provide scan signals to the pixel circuits to control the on and off of transistors in the pixel circuits. The data signal lines may provide data signals to the pixel circuits to control the transistors in the pixel circuits to write data signals to the first electrodes (pixel electrodes or anodes) in the pixel units, thereby enabling the pixel units to emit light normally or emit light, thereby achieving the display function of the display panel. Furthermore, a display driver unit and display driver signal lines may be provided in the frame area NA. The display driver unit may include a driver chip and a pixel driver circuit (such as a shift register circuit). The driver chip is electrically connected to the data signal lines for providing the pixel units with the signals required for display, such as data signals, through the data signal lines.

[0056] It should be noted that the embodiments of the present invention do not limit the specific structures included in the display area AA and the frame area NA. In addition to the structures mentioned in the above embodiments, in other optional implementations, the display area AA and the frame area NA may also include other structures for realizing the normal functions of the display panel. For example, the display area AA may also include touch electrodes and touch signal traces. The frame area NA may also include a touch driver chip ( Figure 6 (not shown) and electrically connected to the touch electrodes and touch driver chip via touch signal traces to implement normal touch functionality of the display panel. For example, the touch signal traces can provide touch drive signals output by the touch driver chip to the touch electrodes and transmit touch sensing signals sensed by the touch electrodes to the touch driver chip. The touch driver chip can then determine the touch position and / or touch intensity based on the touch drive signal and touch sensing signal.

[0057] Optional, continue to refer to Figure 6 The display motherboard further includes a main frame glue 210 , which is disposed between the first substrate 110 and the second substrate 120 and is located in the frame area NA of each display panel 20 .

[0058] Specifically, the main sealant 210 is disposed between the first substrate 110 and the second substrate 120, thereby further improving the support effect of the first substrate 110 and the second substrate 120, thereby further improving the stability of the display motherboard 10. In addition, the main sealant 210 is located in the frame area NA of each display panel 20. In this way, the main sealant 210 can seal the pixel unit in the display area AA to ensure normal display in the display area AA. For example, taking a liquid crystal display motherboard as an example, the main sealant 210 is located in the frame area NA of each liquid crystal display panel. This can seal the liquid crystal in the liquid crystal cell, prevent liquid crystal leakage, and thus ensure the display performance of the display panel.

[0059] Optional, continue to refer to Figure 3 and Figure 4 The first closed figure a1 and the second closed figure a2 are rectangles nested with the same center.

[0060] Specifically, the first closed figure a1 and the second closed figure a2 are shaped like concentrically nested rectangles. That is, the first closed figure a1 and the second closed figure a2 are nested around the same center point, i.e., the center points of the first closed figure a1 and the second closed figure a2 coincide, thereby forming a graphic structure that is sequentially contained from the inside out. Thus, the first closed figure a1 and the second closed figure a2 have good symmetry. Thus, the first auxiliary sealant 101 and the second auxiliary sealant 102 are distributed around the center of gravity of the first substrate 110 and the second substrate 120, and the distance from the edge of each auxiliary sealant to the center of gravity of the substrate is equal. Thus, the edge of each auxiliary sealant can evenly divide the support force on the first substrate 110 and the second substrate 120, further improving the support effect on the first substrate 110 and the second substrate 120, thereby ensuring the stability and reliability of the display motherboard.

[0061] Optional, Figure 7 A schematic top view of a second display motherboard provided by an embodiment of the present invention is shown as follows: Figure 7 As shown, the projection of the first auxiliary frame glue 101 on the first substrate 110 is a first rectangle b1, the second auxiliary frame glue 102 includes linear graphics extending in at least two directions, the linear graphics in different extension directions intersect, and the projection of the second auxiliary frame glue 102 on the first substrate 110 includes at least one second closed graphic a2.

[0062] Specifically, the projection of the first auxiliary sealant 101 on the first substrate 110 is a first rectangle b1 , that is, the first auxiliary sealant 101 can support the four sides of the display motherboard 10 .

[0063] Specifically, the second auxiliary sealant 102 includes linear patterns extending in at least two directions, that is, a second linear pattern a21 extending in the horizontal direction and a second linear pattern a21 extending in the vertical direction. The second linear pattern a21 extending in the horizontal direction and the second linear pattern a21 extending in the vertical direction intersect. Figure 3As shown, the horizontally extending side of the second closed figure a2 intersects the vertically extending side. However, the linear figures of different extension directions provided in the embodiment of the present invention intersect. Intersection can be understood as the length of the second linear figure a21 extending in the horizontal direction exceeding the area of the second linear figure a21 extending in the vertical direction, or the length of the second linear figure a21 extending in the vertical direction exceeding the area of the second linear figure a21 extending in the horizontal direction. In this way, the two second linear figures a21 of different extension directions can form a "cross" at the intersection, which is equivalent to changing the support from two points to four points at the corners. This is conducive to further improving the support effect of the first substrate 110 and the second substrate 120, and is conducive to ensuring the airtightness between the first substrate 110 and the second substrate 120, avoiding glue defects due to insufficient glue at the corners, and thus improving the stability of the display motherboard.

[0064] Specifically, Figure 8 A top view of a third display motherboard provided by an embodiment of the present invention is shown as follows: Figure 8 As shown, a plurality of second linear graphics a21 extending in the horizontal direction and a plurality of second linear graphics a21 extending in the vertical direction intersect, so that the projection of the second auxiliary sealant 102 on the first substrate 110 includes at least one second closed graphic a2, that is, the number of the second closed graphics a2 can be as follows: Figure 7 The one shown can also be Figure 8 As shown in the figure, on the one hand, the auxiliary sealant can be set in a variety of ways, and on the other hand, the area of the second closed figure a2 is reduced, which can further improve the supporting effect of the second auxiliary sealant 102 on the first substrate 110 and the second substrate 120.

[0065] It should be noted that Figure 8 The technical solution of the second auxiliary sealant 102 being located in the middle area and the surrounding area of the display motherboard 10 is only shown for example. It is understandable that the second auxiliary sealant 102 can be located between any two adjacent display panels 20 in the middle area of the display motherboard 10. Figure 9 A schematic top view of a fourth display motherboard provided by an embodiment of the present invention is shown as follows: Figure 9 As shown, the second auxiliary frame glue 102 located on one side of the peripheral area of the display motherboard 10 can include multiple linear patterns extending in the same direction. This can, on the one hand, realize the diversified setting of the auxiliary frame glue of the display motherboard, and on the other hand, further improve the supporting effect of the second auxiliary frame glue 102 on the first substrate 110 and the second substrate 120.

[0066] Optional, Figure 10 A top view of a fifth display motherboard provided by an embodiment of the present invention is shown as follows: Figure 10As shown, at least a portion of the second auxiliary sealant 102 crosses the first auxiliary sealant 101 .

[0067] Specifically, at least a portion of the second auxiliary sealant 102 intersects with the first auxiliary sealant 101. That is, the second linear pattern a21 extending in the horizontal direction intersects with the side length extending in the vertical direction of the first rectangle b1, and / or the second linear pattern a21 extending in the vertical direction intersects with the side length extending in the horizontal direction of the first rectangle b1. This helps to improve the support effect on the first substrate 110 and the second substrate 120 in the intersection area of the second auxiliary sealant 102 and the first auxiliary sealant 101, and helps to ensure the airtightness between the first substrate 110 and the second substrate 120, thereby ensuring the stability of the display motherboard. This configuration can also form a closed pattern at the corners of the auxiliary sealant, and even if there are defects in the corners of the first auxiliary sealant 101, the airtightness will not be affected.

[0068] Optional, Figure 11 A schematic top view of a sixth display motherboard provided by an embodiment of the present invention is shown as follows: Figure 11 As shown, the projection of the second auxiliary sealant 102 on the first substrate 110 is a second rectangle b2 , and the first auxiliary sealant 101 includes linear patterns extending in at least two directions, and the linear patterns in different extending directions intersect.

[0069] Specifically, the projection of the second auxiliary sealant 102 on the first substrate 110 is a second rectangle b2 , that is, the second auxiliary sealant 102 can support the four sides of the display motherboard 10 .

[0070] Specifically, the first auxiliary sealant 101 includes linear patterns extending in at least two directions. For example, the first auxiliary sealant 101 includes a first linear pattern a11 extending horizontally and a first linear pattern a11 extending vertically. The horizontally extending first linear pattern a11 and the vertically extending first linear pattern a11 intersect, meaning that the horizontal extension of the first linear pattern a11 exceeds the vertical extension of the first linear pattern a11, or the vertical extension of the first linear pattern a11 exceeds the horizontal extension of the first linear pattern a11. Thus, the intersection of the two first linear patterns a11 extending in different directions forms a "cross," equivalent to a four-point support at the corners instead of a two-point support. This further enhances the support for the first substrate 110 and the second substrate 120, ensures airtightness between the first substrate 110 and the second substrate 120, and thereby improves the stability of the display motherboard.

[0071] Optional, Figure 12 A schematic top view of a seventh display motherboard provided by an embodiment of the present invention is shown as follows: Figure 12 As shown, the first auxiliary sealant 101 includes first linear graphics a11 extending in at least two directions, and the first linear graphics a11 in different extending directions intersect. The second auxiliary sealant 102 includes second linear graphics a21 extending in at least two directions, and the second linear graphics a21 in different extending directions intersect.

[0072] Specifically, the first linear patterns a11 extending in at least two directions can form a "cross" at the intersection, and the second linear patterns a21 extending in at least two directions can form a "cross" at the intersection. This allows for diversified placement of auxiliary sealants on the display motherboard. Furthermore, it further enhances support for the first substrate 110 and the second substrate 120 at the intersection of the first linear patterns a11 and the second linear patterns a21, helps ensure airtightness between the first substrate 110 and the second substrate 120, and thus improves the stability of the display motherboard. Furthermore, it increases flexibility in the placement of the first auxiliary sealant 101 and the second auxiliary sealant 102.

[0073] Optional, Figure 13 The schematic top view of the eighth display motherboard provided by the embodiment of the present invention is as follows: Figure 13 As shown, at least a portion of the first auxiliary sealant 101 and the second auxiliary sealant 102 intersect.

[0074] Specifically, at least part of the first auxiliary frame glue 101 and the second auxiliary frame glue 102 intersect, so that a "square shape" can be formed at the intersection of the first auxiliary frame glue 101 and the second auxiliary frame glue 102, and a "well shape" can also be formed at the intersection, thereby, on the one hand, realizing diversified settings of the auxiliary frame glue for the display motherboard, and on the other hand, improving the supporting effect of the first substrate 110 and the second substrate 120, and facilitating the sealing between the first substrate 110 and the second substrate 120. Figure 10 In the embodiment type, such a setting can form a closed pattern at the corners of the auxiliary frame glue, thereby preventing defects at the corners of the auxiliary frame glue from affecting the sealing effect.

[0075] Optional, continue to refer to Figure 3 The distance d0 between the first auxiliary sealant 101 and the second auxiliary sealant 102 is greater than or equal to 2 mm and less than or equal to 15 mm.

[0076] For example, when d0 is less than 2 mm, that is, the distance between the first auxiliary sealant 101 and the second auxiliary sealant 102 is small, the two auxiliary sealants are easily adhered to each other, which reduces the effect of the double-layer auxiliary sealant compared to the single-layer auxiliary sealant in the prior art.

[0077] For example, when d0 is greater than 15 mm, that is, the distance between the first auxiliary sealant 101 and the second auxiliary sealant 102 is large, the auxiliary sealant 100 may not have sufficient support between the first substrate 110 and the second substrate 120 , which may cause the sealant to fall off.

[0078] In the embodiment of the present invention, by setting d0 to be greater than or equal to 2 mm and less than or equal to 15 mm, that is, the distance between the first auxiliary frame glue 101 and the second auxiliary frame glue 102 is moderate, it can ensure the support effect of the first substrate 110 and the second substrate 120, thereby ensuring the stability and reliability of the display motherboard.

[0079] Optional, continue to refer to Figure 3 The distance d0 between the first auxiliary frame glue 101 and the second auxiliary frame glue 102 is greater than or equal to 4 mm and less than or equal to 10 mm. This can further ensure that the distance between the first auxiliary frame glue 101 and the second auxiliary frame glue 102 is moderate, thereby further ensuring the display effect of the display panel and the stability and reliability of the display motherboard.

[0080] Optional, continue to refer to Figure 3 The projection shape of the display panel 20 on the first substrate 110 is a rectangle. The display motherboard includes a plurality of display panels 20 arranged in an array. The first closed figure a1 and the second closed figure a2 are both rectangles.

[0081] Specifically, the projection shape of the first substrate 110 on the first substrate 110 is a rectangle, and the first closed figure a1 and the second closed figure a2 are both rectangles. In this way, the first closed figure a1 surrounds the second closed figure a2, and the second closed figure a2 surrounds multiple display panels 20. The layered surrounding is conducive to ensuring the sealing effect of the display motherboard, and thus ensuring the performance of the display motherboard.

[0082] Optional, continue to refer to Figure 8 The projection of the second auxiliary sealant 102 on the first substrate 110 includes a plurality of second closed figures a2 , and the second closed figures a2 include a plurality of display panels 20 .

[0083] Specifically, in addition to being located in the peripheral area of the display motherboard, the second auxiliary frame glue 102 can also be located in the area near the center inside the display motherboard. In this way, the second auxiliary frame glue 102 can divide the display motherboard 10 into multiple areas, and the projection of each area on the first substrate 110 is a second closed figure a2. Each second closed figure a2 can include multiple display panels 20, which is conducive to ensuring the supporting effect of the second auxiliary frame glue 102 on the first substrate 110 and the second substrate 120, thereby ensuring the stability of the display motherboard.

[0084] Optional, continue to refer to Figure 8The display motherboard 10 includes a plurality of middle boards 130 , each of which includes a plurality of display panels 20 , and the projections of the display panels 20 in the middle boards 130 on the first substrate 110 are located within a second closed figure a2 .

[0085] Specifically, the second auxiliary sealant 102 can divide the display motherboard 10 into multiple mid-plates 130, each of which includes multiple display panels 20. The projections of the display panels 20 in the mid-plates 130 on the first substrate 110 are located within a second closed figure a2. In other words, each second closed figure a2 surrounds the projections of the multiple display panels 20 on the first substrate 110. In this way, the second auxiliary sealant 102 can not only improve the support effect of the first substrate 110 and the second substrate 120, but also ensure the sealing effect of each mid-plate 130, preventing liquid crystal leakage, thereby ensuring the stability of the display motherboard and improving the yield rate of the display panels.

[0086] It should be noted that, for example, Figure 8 The technical solution is shown in which each middle plate 130 includes four display panels 20 . Figure 14 A schematic top view of a ninth display motherboard provided by an embodiment of the present invention is shown as follows: Figure 14 As shown, each middle plate 130 may include 8 display panels 20. The embodiment of the present invention does not limit the number of middle plates 130 in the display motherboard 10, the number of display panels 20 in each middle plate 130, and the arrangement. Those skilled in the art can make settings according to actual needs.

[0087] Optional, Figure 15 A top view schematic diagram of a tenth display motherboard provided by an embodiment of the present invention is shown as follows: Figure 15 As shown, the auxiliary sealant 100 also includes a first direction (such as Figure 15 ) and / or a second direction (as shown in the X direction Figure 15 The projection of the third auxiliary frame glue 103 on the first substrate 110 is located within the second closed figure a2. The first direction X is the row direction of the array of display panels, and the second direction Y is the column direction of the array of display panels.

[0088] Specifically, Figure 16 for Figure 15 A schematic diagram of a cross-sectional structure of a display motherboard along the section line A5-A6 is provided, as shown in FIG. Figure 15 and Figure 16As shown, the projection of the third auxiliary frame glue 103 on the first substrate 110 is located within the second closed figure a2, that is, from left to right, the frame glue can be the first auxiliary frame glue 101, the second auxiliary frame glue 102, the third auxiliary frame glue 103 and the main frame glue 210, which are supported and sealed by multiple circles of frame glue. In this way, under the vacuum heating environment of coating, the internal and external pressure difference generated by the gas entering from the upper side and the left side (indicated by the arrow) will not affect the stability of the display panel, thereby improving the yield of the display panel.

[0089] Specifically, as a feasible embodiment, the third auxiliary frame glue 103 extends along the first direction X. As another feasible embodiment, the third auxiliary frame glue 103 extends along the second direction Y. As another feasible embodiment, part of the third auxiliary frame glue 103 extends along the first direction X and another part of the third auxiliary frame glue 103 extends along the second direction Y, that is, the third auxiliary frame glue 103 extends in two directions respectively. In this way, by setting the third auxiliary frame glue 103, on the one hand, the support effect of the first substrate 110 and the second substrate 120 can be further ensured, and on the other hand, the sealing effect of the display motherboard can be improved. In addition, it is possible to achieve a diversified setting of the auxiliary frame glue of the display motherboard.

[0090] Optional, continue to refer to Figure 15 The display motherboard also includes a main frame glue 210, which is arranged between the first substrate 110 and the second substrate 120 and is located in the frame area of each display panel 20; the minimum distance d5 between the third auxiliary frame glue 103 and the main frame glue 210 is greater than or equal to 3 mm and less than or equal to 5 mm.

[0091] For example, when d5 is less than 3 mm, that is, the minimum distance between the third auxiliary sealant 103 and the main sealant 210 is small, the third auxiliary sealant 103 is close to the main sealant 210 , which is not conducive to cutting.

[0092] For example, when d5 is greater than 5 mm, that is, the minimum distance between the third auxiliary frame glue 103 and the main frame glue 210 is larger, and the third auxiliary frame glue 103 is farther away from the main frame glue 210, the auxiliary frame glue does not have enough support force between the first substrate 110 and the second substrate 120, which may cause the frame glue to fall off.

[0093] In the embodiment of the present invention, by setting d5 to be greater than or equal to 3 mm and less than or equal to 5 mm, the minimum distance between the third auxiliary frame glue 103 and the main frame glue 210 is moderate, which is beneficial for cutting on the one hand, and can ensure the support effect of the first substrate 110 and the second substrate 120 on the other hand, and is beneficial for ensuring the airtightness between the first substrate 110 and the second substrate 120, thereby ensuring the stability and reliability of the display motherboard.

[0094] Optional, continue to refer to Figure 15 The minimum distance between the third auxiliary sealant 103 extending along the first direction X and the edge of the display motherboard 10 extending along the second direction Y is d1, and the edge of the display panel closest to the edge of the display motherboard 10 extending along the second direction Y has a minimum distance between it and the edge of the display motherboard 10 extending along the second direction Y is d2, and d2-d1≥5mm.

[0095] Specifically, d2 − d1 can be understood as the distance along the first direction X that the edge of the third auxiliary sealant 103 extends beyond the edge of the display panel 20 .

[0096] For example, when d2-d1 is less than 5 mm, that is, along the first direction X, the edge of the third auxiliary sealant 103 extends a small distance beyond the edge of the display panel 20. That is, the edge of the third auxiliary sealant 103 may be flush with the edge of the display panel, or the edge of the third auxiliary sealant 103 may be retracted from the edge of the display panel. This is not conducive to the third auxiliary sealant 103 supporting the display motherboard and the sealing effect of the display panel 20 at the edge position is poor. However, in the embodiment of the present invention, by setting d2-d1≥5 mm, that is, along the first direction X, the edge of the third auxiliary sealant 103 extends a large distance beyond the edge of the display panel 20, which is conducive to ensuring the support effect of the third auxiliary sealant 103 on the display motherboard and the sealing effect of the display panel 20 at the edge position, thereby improving the performance of the lower display motherboard.

[0097] Optional, Figure 17 A schematic top view of an eleventh display motherboard provided in an embodiment of the present invention is shown as follows: Figure 17 As shown, the third auxiliary sealant 103 includes at least two sub-auxiliary sealants 1031 extending in parallel, and a distance d6 between two adjacent sub-auxiliary sealants 1031 is greater than or equal to 5 mm and less than or equal to 15 mm.

[0098] For example, when d6 is less than 5 mm, that is, the distance between two adjacent sub-auxiliary frame adhesives 1031 is small, it is easy to cause the two sub-auxiliary frame adhesives to adhere to each other, which wastes materials and has a poor supporting effect.

[0099] For example, when d6 is less than 15 mm, that is, the distance between two adjacent sub-auxiliary sealants 1031 is large, which will increase the area of the display motherboard and provide insufficient support between the first substrate 110 and the second substrate 120, thereby causing the sealant to fall off.

[0100] In the embodiment of the present invention, d6 is set to be greater than or equal to 5 mm and less than or equal to 15 mm, that is, the distance between two adjacent sub-auxiliary frame glues 1031 is moderate. This is beneficial for pressing the first substrate 110 and the second substrate 120 together, thereby ensuring the normal display of the display panel. On the other hand, it can ensure the supporting effect of the first substrate 110 and the second substrate 120, thereby ensuring the stability and reliability of the display motherboard.

[0101] Optional, Figure 18 A top view schematic diagram of a twelfth display motherboard provided by an embodiment of the present invention is shown as follows: Figure 18 As shown, the third auxiliary sealant 103 includes a first sub-auxiliary sealant 10311 extending along the first direction X and a second sub-auxiliary sealant 10312 extending along the second direction Y. At least a portion of the first sub-auxiliary sealant 10311 intersects at least a portion of the second sub-auxiliary sealant 10312 .

[0102] Specifically, at least part of the first sub-auxiliary frame glue 10311 and at least part of the second sub-auxiliary frame glue cross 10312, that is, the first sub-auxiliary frame glue 10311 and the second sub-auxiliary frame glue can cross in a "T-shape", "I-shape" or even a "stem shape", etc. In this way, on the one hand, diversified settings of the auxiliary frame glue of the display motherboard can be achieved, and on the other hand, the performance of the display motherboard can be guaranteed.

[0103] It should be noted that the number and position of the third auxiliary sealant 103 in each middle plate 130 may be different.

[0104] Optional, continue to refer to Figure 18 The third auxiliary frame glue 103 includes at least two third sub-auxiliary frame glues 10313 extending in parallel. The length of the rectangle formed by the extension lines and endpoint connection lines of the two adjacent third sub-auxiliary frame glues 10313 and the adjacent second auxiliary frame glue 102 is d3 and d4, d3≤20mm, d4≤7mm.

[0105] Specifically, d3≤20mm, d4≤7mm, which means that the distance between the third auxiliary sub-frame glue 10313 and the second auxiliary frame glue 102 is small, which is beneficial to reducing the area of the display motherboard without frame glue support and avoiding excessive deformation of the first substrate or the second substrate.

[0106] Based on the same inventive concept, an embodiment of the present invention further provides a method for preparing a display motherboard. Figure 19 A schematic flow chart of a method for preparing a first display motherboard according to an embodiment of the present invention is shown as follows: Figure 19 As shown, the preparation method comprises:

[0107] S110 , providing a first substrate and a second substrate.

[0108] For details, please refer to Figure 3-Figure 5 , the first substrate 110 may be an array substrate, and the second substrate 120 may be a color filter substrate.

[0109] S120 , forming a first auxiliary sealant and a second auxiliary sealant on one side of the first substrate.

[0110] For details, please refer to Figure 4 A first auxiliary frame glue 101 and a second auxiliary frame glue 102 are formed on one side of the first substrate 110. The first auxiliary frame glue 101 and the second auxiliary frame glue 102 are arranged in the peripheral area of the first substrate 110. In this way, by arranging two circles of auxiliary frame glue in the peripheral area of the first substrate 110, the support effect of the first substrate 110 and the second substrate 120 can be further improved.

[0111] S130 , arranging the first substrate and the second substrate opposite to each other to form a display motherboard.

[0112] Among them, the first auxiliary frame glue is arranged in the peripheral area of the display motherboard, at least part of the second auxiliary frame glue is arranged in the peripheral area of the display motherboard, the projection of the first auxiliary frame glue on the first substrate includes a first closed figure, the projection of the second auxiliary frame glue on the first substrate includes a second closed figure, and the second closed figure is located within the first closed figure.

[0113] For details, please refer to Figure 3-Figure 5 The first substrate 110 and the second substrate 120 are arranged opposite to each other to form a display motherboard, that is, the first auxiliary frame glue 101 and the second auxiliary frame glue 102 are arranged between the first substrate 110 and the second substrate 120. In this way, the auxiliary frame glue can support the first substrate 110 and the second substrate 120, thereby ensuring the stability of the first substrate 110 and the second substrate 120.

[0114] Specifically, the projection of the first auxiliary sealant 101 on the first substrate 110 includes a first closed figure a1, and the projection of the second auxiliary sealant 102 on the first substrate 110 includes a second closed figure a2. The second closed figure a2 is located within the first closed figure a1. In other words, the first closed figure a1 surrounds the second closed figure a2, that is, the first auxiliary sealant 101 surrounds the second auxiliary sealant 102. In other words, two circles of closed auxiliary sealant are provided around the periphery of the display motherboard. Compared with the single circle of auxiliary sealant in the prior art, the technical solution of the embodiment of the present invention can ensure the sealing effect of the display motherboard while improving the support effect between the first substrate 110 and the second substrate 120. This can prevent the main sealant from falling off due to the internal and external pressure difference in the vacuum heating environment of the coating, thereby causing the problem of liquid crystal leakage.

[0115] In a method for preparing a display motherboard provided by an embodiment of the present invention, a first auxiliary frame glue and a second auxiliary frame glue are formed on one side of a first substrate. The first auxiliary frame glue and the second auxiliary frame glue are arranged in a peripheral area of the display motherboard. The projection of the first auxiliary frame glue on the first substrate includes a first closed figure, and the projection of the second auxiliary frame glue on the first substrate includes a second closed figure. The second closed figure is located within the first closed figure. In this way, on the one hand, by providing two circles of auxiliary frame glue, the support effect of the first substrate and the second substrate can be improved. On the other hand, by providing the sealed first auxiliary frame glue and the second auxiliary frame glue, the sealing effect of the display motherboard can be improved, thereby preventing problems such as liquid crystal puncture and improving the stability and reliability of the display motherboard.

[0116] Optional, Figure 20 A schematic flow chart of a second method for preparing a display motherboard according to an embodiment of the present invention is provided. Figure 20 Based on the above embodiment, the operation of forming the first auxiliary sealant and the second auxiliary sealant on one side of the first substrate is described in detail. Figure 20 As shown, the preparation method comprises:

[0117] S210 , providing a first substrate and a second substrate.

[0118] S220 , forming a first auxiliary sealant and a second auxiliary sealant on one side of the first substrate.

[0119] S230 , forming a main sealant on one side of the first substrate.

[0120] The display function layer is located in the display area, and the main frame glue is located in the frame area. During the preparation process, the display function layer is prepared first, followed by the main frame glue. In practice, S220 and S230 can be performed simultaneously, meaning the first auxiliary frame glue, the second auxiliary frame glue, and the main frame glue can be formed simultaneously.

[0121] For details, please refer to Figure 3 and Figure 6The display motherboard includes a plurality of display panels 20 divided by cutting lines 30, each display panel 20 having a display area AA and a frame area NA. Taking a liquid crystal display panel as an example, the display function layer for display is located in the display area AA, and the main frame glue 210 is located in the frame area NA. The main frame glue 210 is arranged between the first substrate 110 and the second substrate 120, which can further improve the support effect of the first substrate 110 and the second substrate 120, thereby further improving the stability of the display motherboard 10. In addition, the main frame glue 210 is located in the frame area NA of each display panel 20, so that the main frame glue 210 can seal the pixel unit in the display area AA to ensure normal display of the display area AA. For example, taking a liquid crystal display motherboard as an example, the main frame glue 210 is located in the frame area NA of each liquid crystal display panel, so that the liquid crystal can be sealed in the liquid crystal cell to prevent liquid crystal leakage, thereby ensuring the display performance of the display panel.

[0122] S240 , disposing the first substrate and the second substrate opposite to each other to form a display motherboard.

[0123] The preparation method provided by the embodiment of the present invention can seal the pixel unit in the display area by setting the main frame glue, so as to ensure the normal display of the display area and further ensure the display performance of the display panel.

[0124] Optional, Figure 21 A schematic flow chart of a third method for preparing a display motherboard according to an embodiment of the present invention is provided. Figure 21 Based on the above embodiment, the operation of forming the first auxiliary sealant and the second auxiliary sealant on one side of the first substrate is described in detail. Figure 21 As shown, the preparation method comprises:

[0125] S310 , providing a first substrate and a second substrate.

[0126] S320 , forming a first auxiliary sealant and a second auxiliary sealant on one side of the first substrate.

[0127] S330 , forming a third auxiliary sealant on one side of the first substrate.

[0128] In a specific implementation, S320 and S330 may be performed simultaneously, that is, the first auxiliary frame glue, the second auxiliary frame glue, and the third auxiliary frame glue may be formed simultaneously.

[0129] Continue to refer Figure 15 and Figure 16The projection of the third auxiliary sealant 103 on the first substrate 110 is located within the second closed figure a2. That is, from left to right, the sealants can be the first auxiliary sealant 101, the second auxiliary sealant 102, the third auxiliary sealant 103 and the main sealant 210, respectively. Support and sealing are performed by multiple circles of sealant frames. In this way, under the vacuum heating environment of the coating, the internal and external pressure difference generated by the gas entering from the upper side and the left side (indicated by the arrow) will not affect the stability of the display panel, thereby improving the performance of the lower display panel.

[0130] Exemplarily, the third auxiliary sealant 103 may extend along the first direction X and / or the second direction Y.

[0131] S340 , disposing the first substrate and the second substrate opposite to each other to form a display motherboard.

[0132] The display motherboard manufacturing method provided by the embodiment of the present invention forms a third auxiliary sealant on one side of the first substrate, which can further ensure the support effect of the first and second substrates and improve the sealing effect of the display motherboard. In addition, it can realize the diversified setting of the auxiliary sealant of the display motherboard.

[0133] Based on the same inventive concept, an embodiment of the present invention further provides a display panel, such as Figure 6 As shown, the display panel 20 is formed by cutting the display motherboard in the above embodiment. For example, the display panel can be a liquid crystal display panel.

[0134] Based on the same inventive concept, an embodiment of the present invention further provides a display device, Figure 22 A schematic structural diagram of a display device provided by an embodiment of the present invention is shown in FIG. Figure 22 As shown, the display device 1000 includes the display panel of the above embodiment. Therefore, the display device provided by the embodiment of the present invention also has the beneficial effects described in the above embodiment, which will not be repeated here. For example, the display device can be an electronic device such as a mobile phone, a computer, a smart wearable device (for example, a smart watch), and an in-vehicle display device, which is not limited in the embodiment of the present invention.

[0135] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations, and substitutions are possible for those skilled in the art without departing from the scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display motherboard, characterized in that: include: a first substrate; a second substrate, disposed opposite to the first substrate; An auxiliary frame glue is arranged between the first substrate and the second substrate, and the auxiliary frame glue includes a first auxiliary frame glue and a second auxiliary frame glue. The first auxiliary frame glue is arranged in the peripheral area of the display motherboard, and at least part of the second auxiliary frame glue is arranged in the peripheral area of the display motherboard. The projection of the first auxiliary frame glue on the first substrate includes a first closed figure, and the projection of the second auxiliary frame glue on the first substrate includes a second closed figure, and the second closed figure is located within the first closed figure.

2. The display motherboard according to claim 1, wherein: The device comprises a plurality of display panels divided by cutting lines, each of the display panels having a display area and a frame area.

3. The display motherboard according to claim 2, wherein: It also includes a main frame glue, which is arranged between the first substrate and the second substrate and located in the frame area of each display panel.

4. The display motherboard according to claim 1, wherein: The first closed figure and the second closed figure are in the shape of concentrically nested rectangles.

5. The display motherboard according to claim 1, wherein: The projection of the first auxiliary frame glue on the first substrate is a first rectangle, the second auxiliary frame glue includes linear figures extending in at least two directions, the linear figures in different extension directions intersect, and the projection of the second auxiliary frame glue on the first substrate includes at least one second closed figure.

6. The display motherboard according to claim 5, characterized in that: At least a portion of the second auxiliary sealant crosses the first auxiliary sealant.

7. The display motherboard according to claim 1, wherein: The projection of the second auxiliary sealant on the first substrate is a second rectangle. The first auxiliary sealant includes linear patterns extending in at least two directions, and the linear patterns in different extending directions intersect.

8. The display motherboard according to claim 1, wherein: The first auxiliary frame glue includes first linear patterns extending in at least two directions, and the first linear patterns in different extending directions intersect. The second auxiliary frame glue includes second linear patterns extending in at least two directions, and the second linear patterns in different extending directions intersect.

9. The display motherboard according to claim 8, characterized in that: At least a portion of the first auxiliary sealant and the second auxiliary sealant intersect.

10. The display motherboard according to claim 1, wherein: The distance between the first auxiliary sealant and the second auxiliary sealant is greater than or equal to 2 mm and less than or equal to 15 mm.

11. The display motherboard according to claim 2, wherein: The projection shape of the display panel on the first substrate is a rectangle. The display motherboard includes a plurality of display panels arranged in an array. The first closed figure and the second closed figure are both rectangles.

12. The display motherboard according to claim 11, wherein: The projection of the second auxiliary sealant on the first substrate includes a plurality of second closed figures, and the second closed figures include a plurality of the display panels.

13. The display motherboard according to claim 12, wherein: The display motherboard includes a plurality of middle boards, and the middle boards include a plurality of the display panels. Projections of the display panels in the middle boards on the first substrate are located within a second closed figure.

14. The display motherboard according to claim 11, wherein: The auxiliary frame glue also includes a third auxiliary frame glue extending along the first direction and / or the second direction, and the projection of the third auxiliary frame glue on the first substrate is located within the second closed figure. The first direction is the row direction of the array formed by the display panels, and the second direction is the column direction of the array formed by the display panels.

15. The display motherboard according to claim 14, characterized in that: It also includes a main frame glue, which is arranged between the first substrate and the second substrate and located in the frame area of each display panel; The minimum distance between the third auxiliary sealant and the main sealant is greater than or equal to 3 mm and less than or equal to 5 mm.

16. The display motherboard according to claim 14, wherein: The minimum distance between the third auxiliary frame glue extending along the first direction and the edge of the display motherboard extending along the second direction is d1, and the minimum distance between the edge of the display panel closest to the edge of the display motherboard extending along the second direction and the edge of the display motherboard extending along the second direction is d2, and d2-d1≥5mm.

17. The display motherboard according to claim 14, wherein: The third auxiliary frame glue includes at least two sub-auxiliary frame glues extending in parallel, and the distance between two adjacent sub-auxiliary frame glues is greater than or equal to 5 mm and less than or equal to 15 mm.

18. The display motherboard according to claim 14, wherein: The third auxiliary sealant includes a first sub-auxiliary sealant extending along the first direction and a second sub-auxiliary sealant extending along the second direction, and at least a portion of the first sub-auxiliary sealant intersects at least a portion of the second sub-auxiliary sealant.

19. The display motherboard according to claim 14, wherein: The third auxiliary frame glue includes at least two third sub-auxiliary frame glues extending in parallel. The rectangle formed by the extension lines and endpoint connection line of two adjacent third sub-auxiliary frame glues and the adjacent second auxiliary frame glue has a length of d3 and a width of d4, d3≤20mm, d4≤7mm.

20. A method for preparing a display motherboard, characterized in that: Used for preparing the display motherboard according to any one of claims 1 to 19, the preparation method comprising: providing a first substrate and a second substrate; forming a first auxiliary sealant and a second auxiliary sealant on one side of the first substrate; The first substrate and the second substrate are arranged opposite to each other to form the display motherboard; In which, the first auxiliary frame glue is arranged in the peripheral area of the display motherboard, at least part of the second auxiliary frame glue is arranged in the peripheral area of the display motherboard, the projection of the first auxiliary frame glue on the first substrate includes a first closed figure, the projection of the second auxiliary frame glue on the first substrate includes a second closed figure, and the second closed figure is located within the first closed figure.

21. The preparation method according to claim 20, characterized in that The display motherboard includes a plurality of display panels divided by cutting lines, each of the display panels having a display area and a frame area; When forming the first auxiliary sealant and the second auxiliary sealant on one side of the first substrate, the method further includes: forming a main frame glue on one side of the first substrate; Wherein, the main frame glue is located in the frame area.

22. The preparation method according to claim 20, characterized in that When forming the first auxiliary sealant and the second auxiliary sealant on one side of the first substrate, the method further includes: A third auxiliary sealant is formed on one side of the first substrate.

23. A display panel, characterized in that: It is formed by cutting the display motherboard according to any one of claims 1 to 19.

24. A display device, characterized in that: Includes the display panel according to claim 23.

Images