Display panel, intermediate display panel and display device

Abstract

The invention particularly relates to a display panel, an intermediate display panel and a display device. The display panel is provided with a display area and at least one first area located on one side of the display area. Wherein the first area comprises a driving circuit area and an edge area. The edge area is located on the side, away from the display area, of the driving circuit area and makes contact with the boundary, away from the display area, of the first area. The display panel comprises a substrate, a gate drive circuit arranged on one side of the substrate and located in a drive circuit area, and an optical adhesive layer located on the side, away from the substrate, of the gate drive circuit. Wherein the orthographic projection, on the substrate, of the optical adhesive layer covers the orthographic projection, on the substrate, of the gate drive circuit, and the area where the optical adhesive layer is located is not overlapped with the edge area. The substrate film layer in the edge area can be prevented from being stripped, so that the phenomenon that the display panel generates transverse white strips is further avoided.

Description

Technical Field

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

[0002] With the continuous development of display technology, OLED (Organic Light-Emitting Diode) display technology has many advantages such as thin thickness, high brightness, low power consumption, fast response, high clarity, good flexibility, and high luminous efficiency. It has been widely used in various electronic display products such as mobile phones, televisions, personal digital assistants, digital cameras, laptops, desktop computers, etc. Summary of the invention

[0003] The present disclosure aims to solve at least one of the technical problems existing in the prior art, and proposes a display panel, an intermediate display panel and a display device.

[0004] In order to achieve the above object, the present disclosure provides a display panel, comprising a display area and at least one first area located on one side of the display area; the first area comprises a driving circuit area and an edge area; the edge area is located on a side of the driving circuit area away from the display area and contacts a boundary of the first area away from the display area; the display panel comprises:

[0005] substrate substrate;

[0006] A gate driving circuit disposed on one side of the base substrate and located in the driving circuit area;

[0007] The optical adhesive layer is located on a side of the gate driving circuit away from the base substrate; the orthographic projection of the optical adhesive layer on the base substrate covers the orthographic projection of the gate driving circuit on the base substrate, and the area where the optical adhesive layer is located does not overlap with the edge area.

[0008] In some embodiments, the display panel further includes a touch electrode layer and a touch protection layer which are located between the gate driving circuit and the optical adhesive layer and are sequentially stacked in a direction away from the base substrate;

[0009] The orthographic projection of any one of the touch protection layer and the touch electrode layer on the base substrate is located within the orthographic projection range of the optical adhesive layer on the base substrate.

[0010] In some embodiments, the optical adhesive layer includes a first adhesive layer and a second adhesive layer stacked in sequence in a direction away from the base substrate;

[0011] The display panel further includes a supporting layer located between the first adhesive layer and the second adhesive layer;

[0012] The area where any one of the support layer, the first adhesive layer and the second adhesive layer is located covers the display area and the driving circuit area;

[0013] The area where the support layer is located does not overlap with the edge area.

[0014] In some embodiments, the display panel further includes a planarization layer, a touch electrode layer, and a touch protection layer, which are located between the gate driving circuit and the optical adhesive layer and are stacked in sequence in a direction away from the base substrate;

[0015] The planarization layer covers the display area and the non-display area; and in the edge area, the planarization layer is in direct contact with the base substrate.

[0016] In some embodiments, the display panel further comprises a cover plate located on a side of the optical adhesive layer away from the base substrate; the cover plate covers the display area and the first area;

[0017] Alternatively, the display panel further comprises a polarizer located on a side of the optical adhesive layer away from the base substrate; the polarizer covers the display area and the first area.

[0018] The present disclosure also provides an intermediate display panel, comprising a product area and an area to be cut located at least on one side of the product area;

[0019] Wherein, the product area includes a display panel as described in any one of the above, and the driving circuit area is located between the area to be cut and the display area.

[0020] In some embodiments, the area to be cut includes: a second area adjacent to the first area and a third area located on a side of the second area away from the first area;

[0021] The intermediate display panel comprises:

[0022] A redundant substrate, wherein the redundant substrate is connected to the substrate base plate as an integral structure;

[0023] A redundant optical adhesive portion is located at one side of the base substrate and at the third area, and the redundant optical adhesive portion is arranged in the same layer as the optical adhesive layer.

[0024] In some embodiments, the display panel includes at least one insulating layer, a passivation layer, a planarization layer, a touch electrode layer, and a touch protection layer, which are located between the optical adhesive layer and the base substrate and are sequentially arranged in a direction away from the base substrate;

[0025] The intermediate display panel also includes a redundant structure located between the redundant optical adhesive portion and the base substrate; at least one of the insulating layer, the passivation layer, the planarization layer, the touch electrode layer and the touch protection layer is arranged on the same layer as the redundant structure.

[0026] In some embodiments, the display panel includes a cover plate located on a side of the optical adhesive layer away from the base substrate; the intermediate display panel also includes a redundant cover plate portion located in the area to be cut, and the redundant cover plate portion is connected to the cover plate as an integral structure;

[0027] Alternatively, the display panel includes a polarizer located on a side of the optical adhesive layer away from the base substrate; the intermediate display panel also includes a redundant polarizer located in the area to be cut, and the redundant polarizer is connected to the polarizer as an integrated structure.

[0028] The present disclosure also provides a display device, characterized by comprising a display panel as described in any one of the above. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0030] Figure 1 is a schematic diagram of a planar structure of a middle display panel in some embodiments;

[0031] Figure 2 is a schematic cross-sectional structure diagram of a middle display panel in some embodiments;

[0032] Figure 3 is a schematic cross-sectional structure diagram of a middle display panel in some other embodiments;

[0033] Figure 4 is a schematic cross-sectional structure diagram of the middle display panel in some other embodiments;

[0034] Figure 5 is a schematic diagram of a planar structure of a display panel in some embodiments;

[0035] Figure 6 is a schematic diagram of a cross-sectional structure of a display panel in some embodiments;

[0036] Figure 7 is a schematic diagram of a cross-sectional structure of a display panel in some other embodiments;

[0037] Figure 8 is a schematic cross-sectional structure diagram of a display panel in some other embodiments;

[0038] Fig. 9 is a schematic diagram of a planar structure of a display panel in some embodiments of the present disclosure;

[0039] Fig.10 is a schematic diagram of a cross-sectional structure of a display panel in some embodiments of the present disclosure;

[0040] Fig.11 is a schematic diagram of a cross-sectional structure of a display panel in some other embodiments of the present disclosure;

[0041] Fig.12 is a schematic cross-sectional structure diagram of a display panel in some other embodiments of the present disclosure;

[0042] Fig.13 is a schematic diagram of the planar structure of the middle display panel in some embodiments of the present disclosure;

[0043] Fig.14 is a schematic cross-sectional structure diagram of a middle display panel in some embodiments of the present disclosure;

[0044] Fig.15 is a schematic diagram of the cross-sectional structure of the middle display panel in some other embodiments of the present disclosure;

[0045] Fig.16 2 is a schematic diagram of the cross-sectional structure of the middle display panel in some other embodiments of the present disclosure.

[0046] 11. Base substrate; 21. First gate insulating layer; 31. Passivation layer; 41. First planarization layer; 51. Second planarization layer; 61. First touch protection layer; 71. Optical adhesive layer; 711. First adhesive layer; 712. Second adhesive layer; 81. Support layer; 91. Cover plate; 101. Polarizer; 12. Redundant substrate; 22. Redundant insulating part; 32. Redundant passivation part; 42. Redundant planarization part; 10. Redundant touch electrode part; 20. Second redundant touch protection part; 62. First redundant touch protection part; 72. Redundant optical adhesive part; 721. First redundant optical adhesive part; 722. Second redundant optical adhesive part; 92. Redundant cover plate part; 102. Redundant polarizing part; 100. Redundant structure. DETAILED DESCRIPTION

[0047] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0048] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0049] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0050] As used herein, "parallel" and "perpendicular" include the described situation and the situation similar to the described situation, and the range of the similar situation 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 error associated with the measurement of a specific 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 can be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity can also be, for example, a deviation within 5°.

[0051] 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.

[0052] 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 layers and regions are exaggerated for clarity. Therefore, variations in shape 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 deviations in shape due to, for example, manufacturing. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shapes of regions of the device, and are not intended to limit the scope of the exemplary embodiments.

[0053] With the rapid development of technology, OLED display panel products are also changing rapidly. The updated OLED display panels are also generating more new problems, such as the horizontal white stripes on the display panel of flexible OLED products during use. The following will analyze the causes of the horizontal white stripes in detail.

[0054] In the related technology, Figure 1 is a schematic diagram of the planar structure of the middle display panel in some embodiments. Figure 2 is a schematic diagram of the cross-sectional structure of the middle display panel in some embodiments. Figure 3 Schematic diagram of the cross-sectional structure of the middle display panel in other embodiments. Figure 4 is a schematic cross-sectional structure diagram of the middle display panel in some other embodiments. Specifically, Figure 2 , Figure 3 and Figure 4 In different embodiments, Figure 1 A schematic diagram of the cross-sectional structure obtained by cutting the middle display panel along the cutting line AB is shown.

[0055] In some embodiments, Figure 1 As shown, the middle display panel has a product area YY and a to-be-cut area XX located at at least one side of the product area YY.

[0056] For example, in Figure 1 In the illustrated embodiment, the middle display panel has a product area YY and two to-be-cut areas XX located on opposite sides of the product area YY in the first direction.

[0057] Among them, Figures 2 to 4 As shown, the adjacent position of the product area YY and the area to be cut XX has a cutting path area CP. It can be understood that a part of the cutting path area CP is located in the product area YY, and the other part is located in the area to be cut XX. Cutting along any cutting line CL perpendicular to the first direction and located in the cutting path area CP can obtain the display panel located in the product area YY. The first direction is the arrangement direction of the product area YY and the area to be cut XX. After the cutting is completed, the display panel is cut into the product area YY. Figure 1 It can be seen that the cutting line CL passes through point C, which is the boundary line between the product area YY and the area to be cut XX.

[0058] In some embodiments, Figures 2 to 4 As shown, the middle display panel includes a display panel located in the product area YY and a redundant panel located in the to-be-cut area XX. That is, after the middle display panel is cut and the redundant panel is removed, a display panel for displaying an image can be obtained.

[0059] Figure 5 is a schematic diagram of a planar structure of a display panel in some embodiments. Figure 6 is a schematic diagram of the cross-sectional structure of a display panel in some embodiments. Figure 7 Schematic diagram of the cross-sectional structure of display panels in other embodiments.

[0060] Figure 8 is a schematic diagram of a cross-sectional structure of a display panel in some other embodiments. Specifically, Figure 6 , Figure 7 and Figure 8 In different embodiments, Figure 5 A schematic diagram of the cross-sectional structure obtained by cutting the middle display panel along the cutting line AC is shown.

[0061] In some embodiments, Figure 5 As shown, the display panel has a display area AA and a non-display area NA surrounding the display area AA, wherein the non-display area NA includes at least one driving circuit area GOA located at one side of the display area AA.

[0062] For example, in Figure 5 In the illustrated embodiment, the non-display area NA includes two driving circuit areas GOA, and the two driving circuit areas GOA are respectively located at two opposite sides of the display area AA in the first direction.

[0063] like Figures 6 to 8 As shown, the display panel includes a base substrate 11, a gate driving circuit located on one side of the base substrate 11, and an optical adhesive layer 71 located on a side of the gate driving circuit away from the base substrate 11. Figure 5 As shown, the gate driving circuit is located in the driving circuit area GOA.

[0064] exist Figures 6 to 8 In the illustrated embodiment, the display panel further includes a first planarization layer 41 and a second planarization layer 51 located between the gate driving circuit and the optical adhesive layer 71 .

[0065] exist Figure 6 and Figure 7In the illustrated embodiment, the display panel further includes a touch electrode layer and a first touch protection layer 61 which are located between the second planarization layer 51 and the optical adhesive layer 71 and are sequentially stacked in a direction away from the base substrate 11 .

[0066] Optionally, the display panel further includes a first gate insulating layer 21, a semiconductor layer, a second gate insulating layer, a gate electrode layer, an interlayer dielectric layer, a source-drain electrode layer, and a passivation layer 31, which are located between the base substrate 11 and the first planarization layer 41 and are sequentially stacked in a direction away from the base substrate 11. The gate drive circuit includes a plurality of transistors, the gates of the transistors are located in the gate electrode layer, the active layers of the transistors are located in the semiconductor layer, and the sources and drains of the transistors are located in the source-drain electrode layer.

[0067] Optionally, in Figure 6 In the illustrated embodiment, the optical adhesive layer 71 includes a first adhesive layer 711 and a second adhesive layer 712 sequentially stacked in a direction away from the base substrate 11. The display panel further includes a support layer 81 located between the first adhesive layer 711 and the second adhesive layer 712.

[0068] Optionally, the support layer 81 may be ultra-thin flexible glass (UTG).

[0069] In some embodiments, Figure 6 and Figure 7 As shown, the display panel further includes a cover plate 91 located on a side of the optical adhesive layer 71 away from the base substrate 11 .

[0070] In other embodiments, Figure 8 As shown, the display panel further includes a polarizer 101 located on a side of the optical adhesive layer 71 away from the base substrate 11. Further, the display panel may further include a cover plate 91 located on a side of the polarizer 101 away from the base substrate 11.

[0071] Accordingly, if Figures 2 to 4 As shown, the middle display panel includes a redundant substrate 12 located in the area to be cut and a redundant optical adhesive portion 72 located on one side of the redundant substrate. The redundant substrate 12 is connected to the base substrate 11 as an integral structure. The redundant optical adhesive portion 72 is connected to the optical adhesive layer 71 as an integral structure.

[0072] Optionally, in Figure 2 In the illustrated embodiment, the redundant optical adhesive portion 72 includes a first redundant optical adhesive portion 721 and a second redundant optical adhesive portion 722 which are sequentially arranged in a direction away from the redundant substrate 12. The first redundant optical adhesive portion 721 is connected to the first adhesive layer 711 as an integral structure. The second redundant optical adhesive portion 722 is connected to the second adhesive layer 712 as an integral structure.

[0073] like Figures 2 to 4As shown, the middle display panel further includes a redundant structure 100 located between the redundant optical adhesive portion 72 and the redundant substrate 12. Specifically, Figure 2 and Figure 3 In the illustrated embodiment, the redundant structure 100 includes a redundant insulating portion 22, a redundant passivation portion 32, a redundant touch electrode portion 10, and a first redundant touch protection portion 62, which are sequentially stacked in a direction away from the redundant substrate 12. Among them, the redundant insulating portion 22 is arranged in the same layer as the first gate insulating layer 21, the redundant passivation portion 32 is arranged in the same layer as the passivation layer 31, the redundant touch electrode portion 10 is arranged in the same layer as the touch electrode layer, and the first redundant touch protection portion 62 is arranged in the same layer as the first touch protection layer 61. "Set in the same layer" in the embodiment of the present disclosure means that multiple structures are formed by the same material layer through the same patterning process. For example, in the embodiment of the present disclosure, the redundant insulating portion 22 and the first gate insulating layer 21 are formed by the same material layer through the same patterning process.

[0074] exist Figures 2 to 4 In the illustrated embodiment, the redundant structure 100 further includes a redundant planarization portion 42 , and the redundant planarization portion 42 is connected to the first planarization layer 41 as an integrated structure.

[0075] Optionally, the display panel further includes a second touch protection layer located between the touch electrode layer and the first touch protection layer 61. The redundant structure 100 further includes a second redundant touch protection portion 20. The second redundant touch protection portion 20 is disposed in the same layer as the second touch protection layer.

[0076] like Figure 2 and Figure 3 As shown, the middle display panel further includes a redundant cover plate portion 92 located in the area to be cut, and the redundant cover plate portion 92 is connected to the cover plate 91 to form an integral structure.

[0077] like Figure 4 As shown, the middle display panel further includes a redundant polarizing portion 102 located in the area to be cut, and the redundant polarizing portion 102 is connected to the polarizer 101 as an integrated structure.

[0078] During the use of the above-mentioned display panel, on the side of the display panel having the driving circuit area GOA, the optical adhesive layer 71 superimposed on the cover plate 91 is prone to slight warping, thereby driving the film layer of the base substrate 11 to warp up. In one example, the base substrate 11 includes at least two organic layers stacked in sequence. Optionally, the material of the organic layer can be polyimide (PI) or transparent polyimide (CPI). Optionally, a barrier layer (BL) is provided between adjacent organic layers. After the optical adhesive layer 71 is superimposed on the cover plate 91 and warps up, it is easy to cause the barrier layer and the organic layer in the base substrate 11 to peel off (Peeling). Since the area where the barrier layer and the organic layer are separated is relatively close to the driving circuit area GOA, it may further affect the gate drive circuit located in the driving circuit area GOA, thereby causing the display panel to produce black and white stripes. In addition, in the display panel, in the edge area of ​​the driving circuit area GOA away from the display area AA, the stacking of multiple film layers has an aggravating effect on the separation of the barrier layer and the organic layer in the base substrate 11, resulting in a more serious horizontal white strip phenomenon.

[0079] In order to at least alleviate or solve one of the above-mentioned technical problems, the present disclosure proposes a display panel, an intermediate display panel and a display device.

[0080] The present disclosure provides a display panel. Fig. 9 It is a schematic diagram of the planar structure of the display panel in some embodiments of the present disclosure. Fig.10 is a schematic diagram of the cross-sectional structure of a display panel in some embodiments of the present disclosure. Fig.11 It is a schematic diagram of the cross-sectional structure of the display panel in some other embodiments of the present disclosure. Fig.12 2 is a schematic diagram of the cross-sectional structure of a display panel in some other embodiments of the present disclosure.

[0081] In some embodiments, Fig. 9 As shown, the present disclosure provides a display panel having a display area AA and at least one first area N1 located on one side of the display area AA.

[0082] For example, in Fig. 9 In the embodiment shown, the display panel has a display area AA and a non-display area NA surrounding the display area AA, wherein the non-display area NA includes two first areas N1 located at two opposite sides of the display area AA in the first direction.

[0083] The first region N1 includes a driving circuit area GOA and an edge area N13. The edge area N13 is located at a side of the driving circuit area GOA away from the display area AA and contacts a boundary of the first region N1 away from the display area AA.

[0084] For example, in Fig. 9In the embodiment shown, the first region N1 includes a first sub-region N11, a spacer region N12, and an edge region N13 arranged in sequence in a direction away from the display region AA. The drive circuit region GOA is located in the first sub-region N11. The boundary of the edge region N13 away from the display region AA is also the boundary of the first region N1 away from the display region.

[0085] like Figure 10 to Figure 12 As shown, the display panel includes: a base substrate 11, a gate driving circuit, and an optical adhesive layer 71. The gate driving circuit is arranged on one side of the base substrate 11 and is located in the driving circuit area GOA. The optical adhesive layer 71 is located on the side of the gate driving circuit away from the base substrate 11, and the orthographic projection of the optical adhesive layer 71 on the base substrate 11 covers the orthographic projection of the gate driving circuit on the base substrate 11, and the area where the optical adhesive layer 71 is located does not overlap with the edge area N13.

[0086] In the embodiment of the present disclosure, the area where the optical adhesive layer 71 is located does not overlap with the edge area N13, which can weaken the influence of the film layer stacking in the edge area N13 on the base substrate 11. It can be understood that the area where the optical adhesive layer 71 is located does not overlap with the edge area N13, which is equivalent to digging out the optical adhesive material located in the edge area N13. Since the optical adhesive layer 71 has adhesiveness, no longer providing the optical adhesive layer 71 in the edge area N13 can also avoid the optical adhesive layer 71 pulling the film layer of the base substrate 11, thereby alleviating or avoiding the phenomenon of film layer peeling in the base substrate 11, so as to ensure that the interaction of forces directly generated between the upper film layer stacked in the edge area N13 and the base substrate 11 can be weakened or avoided. In this case, when the film layer above the optical adhesive layer 71, such as the cover plate, is slightly deformed, such as warping, it will not pull the film layer of the base substrate 11 near the edge area N13, thereby avoiding the film layer in the base substrate 11 from peeling, and further avoiding the influence on the gate drive circuit in the drive circuit area GOA, so as to avoid the generation of horizontal white stripe defects.

[0087] In some embodiments, Fig.10 and Fig.11 As shown, the display panel further includes a touch electrode layer and a first touch protection layer 61 which are located between the base substrate 11 and the optical adhesive layer 71 and are sequentially stacked in a direction away from the base substrate 11. Moreover, the orthographic projection of any one of the first touch protection layer 61 and the touch electrode layer on the base substrate 11 is located within the orthographic projection range of the optical adhesive layer 71 on the base substrate 11.

[0088] In some embodiments, Fig.10 As shown, the optical adhesive layer 71 includes a first adhesive layer 711 and a second adhesive layer 712 which are sequentially stacked in a direction away from the base substrate 11. The display panel also includes a support layer 81 located between the first adhesive layer 711 and the second adhesive layer 712.

[0089] The area where any one of the support layer 81, the first adhesive layer 711 and the second adhesive layer 712 is located covers the display area AA and the driving circuit area GOA. In addition, the area where the support layer 81 is located does not overlap with the edge area N13.

[0090] In the embodiment of the present disclosure, the area where the first adhesive layer 711 and the area where the second adhesive layer 712 are located do not overlap with the edge area N13 , thereby preventing the first adhesive layer 711 or the second adhesive layer 712 from pulling the base substrate 11 .

[0091] In some embodiments, Figure 10 to Figure 12 As shown, the display panel further includes a planarization layer, a touch electrode layer, and a first touch protection layer 61, which are located between the base substrate 11 and the optical adhesive layer 71 and are stacked in sequence in a direction away from the base substrate 11. The planarization layer covers the display area AA and the non-display area AA; and in the edge area N13, the planarization layer is in direct contact with the base substrate 11.

[0092] For example, in Figure 10 to Figure 12 In the illustrated embodiment, the planarization layer includes a first planarization layer 41 and a second planarization layer 51 which are sequentially arranged in a direction away from the base substrate 11 .

[0093] The first planarization layer 41 covers the display area AA and the non-display area AA, that is, the first planarization layer 41 covers the display area AA, the first sub-area N11, the spacer area N12 and the edge area N13, and in the edge area N13, the first planarization layer 41 is in direct contact with the base substrate 11.

[0094] In one example, the second planarization layer 51 covers the display area AA and the driving circuit area GOA. In another example, the second planarization layer 51 covers the display area AA, the first sub-area N11 and the spacing area N12. Moreover, the area where the second planarization layer 51 is located does not overlap with the edge area N13.

[0095] In the disclosed embodiment, the planarization layer is in direct contact with the base substrate 11, and the base substrate 11 in the edge area N13 can also be protected by the planarization layer. At the same time, the area where the optical adhesive layer 71 is located does not overlap with the edge area N13, which can prevent the optical adhesive layer 71 from pulling the planarization layer, thereby preventing the film layer from peeling off and affecting the film layer in the driving circuit area GOA, thereby avoiding the occurrence of the horizontal white stripe phenomenon.

[0096] In some embodiments, Fig.10 and Fig.11 As shown, the display panel further includes a cover plate 91 located on a side of the optical adhesive layer 71 away from the base substrate 11. The cover plate 91 covers the display area AA and the first area N1. Fig.10 and Fig.11 In the illustrated embodiment, the cover plate 91 covers the display area AA and the non-display area NA.

[0097] In other embodiments, Fig.12 As shown, the display panel further includes a polarizer 101 located on a side of the optical adhesive layer 71 away from the base substrate 11. The polarizer 101 covers the display area AA and the first area N1. Fig.12 In the illustrated embodiment, the polarizer 101 covers the display area AA and the non-display area NA.

[0098] In some other embodiments, the display panel further includes a polarizer 101 located on the side of the optical adhesive layer 71 away from the base substrate 11, and a cover plate 91 located on the side of the polarizer 101 away from the base substrate 11. Both the polarizer 101 and the cover plate 91 cover the display area AA and the non-display area NA.

[0099] The present disclosure also provides an intermediate display panel. Fig.13 It is a schematic diagram of the planar structure of the middle display panel in some embodiments of the present disclosure. Fig.14 It is a schematic diagram of the cross-sectional structure of the middle display panel in some embodiments of the present disclosure. Fig.15 It is a schematic diagram of the cross-sectional structure of the middle display panel in other embodiments of the present disclosure. Fig.16 2 is a schematic diagram of the cross-sectional structure of the middle display panel in some other embodiments of the present disclosure.

[0100] In some embodiments, Fig.13 As shown, the intermediate display panel of the present disclosure includes a product area YY and a to-be-cut area XX located on at least one side of the product area YY. The product area YY includes a display panel as described in any embodiment of the present disclosure, and the drive circuit area GOA is located between the to-be-cut area XX and the display area AA. The adjacent positions of the product area YY and the to-be-cut area XX have a cutting path area CP. The display panel located in the product area YY can be obtained by cutting along a cutting line CL in the cutting path area CP.

[0101] In some embodiments, the optical adhesive layer 71 does not overlap with the orthographic projection of the cutting line area CP on the base substrate 11. The redundant optical adhesive portion 72 does not overlap with the orthographic projection of the cutting line area CP on the redundant substrate 12. On this basis, in the display panel obtained by cutting along any cutting line CL in the cutting line area CP, the area where the optical adhesive layer 71 is located does not overlap with the edge area N13.

[0102] In some embodiments, Fig.13As shown, the area to be cut XX includes: a second area X1 adjacent to the first area N1 in the product area YY and a third area X2 located in the second area X1 and away from the first area N1. Specifically, the second area X1 is located on a side of the first area N1 away from the display area AA. More specifically, the second area X1 is adjacent to the edge area N13 and is located on a side of the edge area N13 away from the spacer area N12. Figure 14 to Figure 16 As shown, the middle display panel includes: a redundant substrate 12 and a redundant optical adhesive portion 72 located on one side of the redundant substrate 12. The redundant substrate 12 is connected to the base substrate 11 as an integral structure. The redundant optical adhesive portion 72 is located in the third area X2, and the redundant optical adhesive portion 72 is arranged on the same layer as the optical adhesive layer 71.

[0103] Optionally, in Fig.14 In the illustrated embodiment, the redundant optical adhesive portion 72 includes a first redundant optical adhesive portion 721 and a second redundant optical adhesive portion 722 which are sequentially arranged in a direction away from the redundant substrate 12. The first redundant optical adhesive portion 721 is connected to the first adhesive layer 711 as an integral structure. The second redundant optical adhesive portion 722 is connected to the second adhesive layer 712 as an integral structure.

[0104] In some embodiments, Fig.14 and Fig.15 As shown, the display panel includes a first gate insulating layer 21, a semiconductor layer, a second gate insulating layer, a gate electrode layer, an interlayer dielectric layer, a source-drain electrode layer, a passivation layer, a planarization layer, a touch electrode layer, and a first touch protection layer 61, which are located between the optical adhesive layer 71 and the base substrate 11 and are sequentially arranged in a direction away from the base substrate 11. The intermediate display panel also includes a redundant structure 100 located between the redundant optical adhesive portion 72 and the base substrate 11. At least one of the first gate insulating layer 21, the semiconductor layer, the second gate insulating layer, the gate electrode layer, the interlayer dielectric layer, the source-drain electrode layer, the passivation layer, the planarization layer, the touch electrode layer, and the first touch protection layer 61 is arranged in the same layer as the redundant structure 100.

[0105] Specifically, in Fig.14 and Fig.15 In the illustrated embodiment, the redundant structure 100 includes a redundant insulating portion 22, a redundant passivation portion 32, a redundant touch electrode portion 10, and a first redundant touch protection portion 62, which are sequentially stacked in a direction away from the redundant substrate 12. The redundant insulating portion 22 is disposed in the same layer as the first gate insulating layer 21, the redundant passivation portion 32 is disposed in the same layer as the passivation layer 31, the redundant touch electrode portion 10 is disposed in the same layer as the touch electrode layer, and the first redundant touch protection portion 62 is disposed in the same layer as the first touch protection layer 61.

[0106] Optionally, the display panel further includes a second touch protection layer located between the touch electrode layer and the first touch protection layer 61. Fig.14 and Fig.15 In the illustrated embodiment, the redundant structure 100 further includes a second redundant touch protection portion 20. The second redundant touch protection portion 20 is disposed on the same layer as the second touch protection layer.

[0107] exist Figure 14 to Figure 16 In the embodiment shown, the redundant structure 100 includes a redundant planarization portion 42. Furthermore, the redundant planarization portion 42 is connected to the planarization layer as an integral structure. Figure 14 to Figure 16 In the illustrated embodiment, the redundant planarization portion 42 is connected to the first planarization layer 41 as an integral structure. In addition, in the second region X1 , the redundant planarization portion 42 is in direct contact with the redundant substrate 12 .

[0108] Optionally, the redundant planarization portion 42 has no overlap with the orthographic projection of the redundant touch electrode portion 10 on the redundant substrate 12 .

[0109] In the intermediate display panel of the embodiment of the present disclosure, the integrated structure formed by connecting the first planarization layer 41 and the redundant planarization portion 42 is in direct contact with the base substrate 11 or the redundant substrate 12 within the scribe line region CP.

[0110] Furthermore, the edge of the second planarization layer 51 is located in the scribe line area CP close to the edge of the display area AA in the product area YY.

[0111] In some embodiments, the display panel includes a cover plate 91 located on a side of the optical adhesive layer 71 away from the base substrate 11. The intermediate display panel also includes a redundant cover plate portion 92 located in the to-be-cut region XX, and the redundant cover plate portion 92 is connected to the cover plate 91 as an integral structure.

[0112] In other embodiments, the display panel includes a polarizer 101 located on a side of the optical adhesive layer 71 away from the base substrate 11. The intermediate display panel also includes a redundant polarizer 102 located in the to-be-cut region XX, and the redundant polarizer 102 is connected to the polarizer 101 as an integral structure. Further, the display panel includes a cover plate 91 located on a side of the polarizer 101 away from the base substrate 11. The intermediate display panel also includes a redundant cover plate portion 92 located in the to-be-cut region XX, and the redundant cover plate portion 92 is connected to the cover plate 91 as an integral structure.

[0113] The present disclosure also provides a method for preparing the intermediate display panel described in any embodiment of the present disclosure, comprising steps S1 to S3:

[0114] Step S1: forming a substrate material layer in the preset product area YY and the area to be cut XX. At this time, the formed substrate material layer covers the product area YY and the area to be cut XX. It can be understood that the substrate material layer includes a substrate base plate 11 located in the product area YY and a redundant substrate 12 located in the area to be cut XX.

[0115] Step S2: forming an optical adhesive material layer on one side of the substrate material layer. At this time, the optical adhesive material layer covers the product area YY and the to-be-cut area XX.

[0116] Step S3: Patterning the optical adhesive material layer to obtain an intermediate optical adhesive material layer, which has no overlap with the cutting path area CP. It can also be understood that the intermediate optical adhesive material layer includes an optical adhesive layer 71 located in the product area YY and a redundant optical adhesive portion 72 located in the to-be-cut area XX.

[0117] Based on the intermediate display panel obtained in step S3 , the display panel described in any embodiment of the present disclosure can be obtained by cutting along a cutting line CL in the cutting path area CP.

[0118] The present disclosure also proposes a display device, comprising a display panel as described in any embodiment of the present disclosure.

[0119] The display device in the embodiments of the present disclosure may include any device or product with a display function. For example, the display device may be a smart phone, a mobile phone, an e-book reader, a desktop computer (PC), a laptop PC, a netbook PC, a personal digital assistant (PDA), a portable multimedia player (PMP), a digital audio player, a mobile medical device, a camera, a wearable device (such as a head-mounted device, an electronic clothing, an electronic bracelet, an electronic necklace, an electronic accessory, an electronic tattoo, or a smart watch), a television, etc.

[0120] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A display panel, characterized in that: A display panel having a display area and at least one first area located on one side of the display area; the first area includes a driving circuit area and an edge area; the edge area is located on a side of the driving circuit area away from the display area and is in contact with a boundary of the first area away from the display area; the display panel comprises: substrate substrate; A gate driving circuit disposed on one side of the base substrate and located in the driving circuit area; The optical adhesive layer is located on a side of the gate driving circuit away from the base substrate; the orthographic projection of the optical adhesive layer on the base substrate covers the orthographic projection of the gate driving circuit on the base substrate, and the area where the optical adhesive layer is located does not overlap with the edge area.

2. The display panel according to claim 1, characterized in that: The display panel further includes a touch electrode layer and a touch protection layer which are located between the gate drive circuit and the optical adhesive layer and are sequentially stacked in a direction away from the base substrate; The orthographic projection of any one of the touch protection layer and the touch electrode layer on the base substrate is located within the orthographic projection range of the optical adhesive layer on the base substrate.

3. The display panel according to claim 1, characterized in that: The optical adhesive layer comprises a first adhesive layer and a second adhesive layer which are sequentially stacked in a direction away from the substrate; The display panel further includes a supporting layer located between the first adhesive layer and the second adhesive layer; The area where any one of the support layer, the first adhesive layer and the second adhesive layer is located covers the display area and the driving circuit area; The area where the support layer is located does not overlap with the edge area.

4. The display panel according to any one of claims 1 to 3, characterized in that: The display panel further includes a planarization layer, a touch electrode layer, and a touch protection layer, which are located between the gate drive circuit and the optical adhesive layer and are stacked in sequence in a direction away from the base substrate; The planarization layer covers the display area and the non-display area; and in the edge area, the planarization layer is in direct contact with the base substrate.

5. The display panel according to any one of claims 1 to 3, characterized in that: The display panel further comprises a cover plate located on a side of the optical adhesive layer away from the base substrate; the cover plate covers the display area and the first area; Alternatively, the display panel further comprises a polarizer located on a side of the optical adhesive layer away from the base substrate; The polarizer covers the display area and the first area.

6. An intermediate display panel, characterized in that: comprising a product area and an area to be cut located on at least one side of the product area; Wherein, the product area includes the display panel according to any one of claims 1 to 5, and the driving circuit area is located between the area to be cut and the display area.

7. The intermediate display panel according to claim 6, characterized in that: The area to be cut includes: a second area adjacent to the first area and a third area located on a side of the second area away from the first area; The intermediate display panel comprises: A redundant substrate, wherein the redundant substrate is connected to the substrate base plate as an integral structure; A redundant optical adhesive portion is located at one side of the base substrate and at the third area, and the redundant optical adhesive portion is arranged in the same layer as the optical adhesive layer.

8. The intermediate display panel according to claim 6, characterized in that: The display panel includes at least one insulating layer, a passivation layer, a planarization layer, a touch electrode layer and a touch protection layer, which are located between the optical adhesive layer and the base substrate and are sequentially arranged in a direction away from the base substrate; The intermediate display panel also includes a redundant structure located between the redundant optical adhesive portion and the base substrate; at least one of the insulating layer, the passivation layer, the planarization layer, the touch electrode layer and the touch protection layer is arranged on the same layer as the redundant structure.

9. The intermediate display panel according to claim 6, characterized in that: The display panel includes a cover plate located on a side of the optical adhesive layer away from the base substrate; the intermediate display panel also includes a redundant cover plate portion located in the area to be cut, and the redundant cover plate portion is connected to the cover plate to form an integral structure; Alternatively, the display panel includes a polarizer located on a side of the optical adhesive layer away from the base substrate; the intermediate display panel also includes a redundant polarizer located in the area to be cut, and the redundant polarizer is connected to the polarizer as an integrated structure.

10. A display device, characterized in that: The invention comprises the display panel as claimed in any one of claims 1 to 5.

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