Display panel and display device

CN115248639BActive Publication Date: 2026-09-08WUHAN TIANMA MICRO ELECTRONICS CO LTD +1
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202210911148.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-29
Publication Date
2026-09-08
Estimated Expiration
2042-07-29

Smart Images

  • Figure CN115248639B_ABST
    Figure CN115248639B_ABST
Patent Text Reader

Abstract

Embodiments of the present application provide a display panel and a display device, which include a display area and a first bezel area located at one side of the display area; the display panel includes a transfer electrode and a plurality of support bodies arranged in the first bezel area; the transfer electrode includes a first transfer electrode and a second transfer electrode, the first transfer electrode is located at one side of the first substrate facing the second substrate, the second transfer electrode is located at one side of the second substrate facing the first substrate, and one end of the first transfer electrode facing the second substrate is in contact with one end of the second transfer electrode facing the first substrate; the height of the support body is less than the height of the transfer electrode. By arranging the support body in the first bezel area provided with the transfer electrode, the stress of the first substrate / second substrate in the first bezel area is dispersed, thereby reducing the risk of cracks in the display panel; and by making the height of the support body less than the height of the transfer electrode, the risk of cracks in the display panel can be effectively reduced.
Need to check novelty before this filing date? Find Prior Art

Description

[Technical Field]

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

[0002] An organic light-emitting display (OLED) with integrated touch functionality includes a touch substrate and an array substrate arranged opposite each other. Touch electrodes are located on the side of the touch substrate facing the array substrate. The touch electrodes on the touch substrate need to be connected to bonding pads on the array substrate via adapter electrodes on the touch substrate, adapter electrodes on the array substrate, and touch leads. This necessitates the placement of adapter electrodes in the non-display areas of both the touch substrate and the array substrate.

[0003] To ensure a high yield rate of electrical contact between the transition electrodes on the touch substrate and the array substrate, the heights of both transition electrodes are set relatively large to allow for effective contact during the packaging of the touch substrate and the array substrate. However, setting the height of the transition electrodes too large results in a difference in height between the locations where the transition electrodes are located in the non-display area of ​​the screen and other locations. Furthermore, during the packaging and sintering process, stress concentration occurs at the locations of the transition electrodes on the touch substrate and / or the array substrate. When the screen is dropped, the uneven stress on different locations in the non-display area can easily lead to cracks. In other words, setting the height of the transition electrodes too large degrades the mechanical properties of the screen.

[0004] [Application Content]

[0005] In view of this, embodiments of this application provide a display panel and a display device to solve the above problems.

[0006] In a first aspect, embodiments of this application provide a display panel, including a display area and a non-display area, wherein the non-display area includes a first border area located on one side of the display area; the display panel includes:

[0007] The first substrate and the second substrate are positioned opposite each other;

[0008] A transfer electrode is disposed in the first frame area. The transfer electrode includes a first transfer electrode and a second transfer electrode. The first transfer electrode is disposed on the first substrate and located on the side of the first substrate facing the second substrate. The second transfer electrode is disposed on the second substrate and located on the side of the second substrate facing the first substrate. In the same transfer electrode, the end of the first transfer electrode facing the second substrate is in contact with the end of the second transfer electrode facing the first substrate.

[0009] Multiple supports are disposed in the first border area and located between the first substrate and the second substrate; the height of the transfer electrode is h1, the height of the support is h2, and h2 < h1.

[0010] In one implementation of the first aspect, Δh = h1 - h2, where 0.6μm ≥ Δh ≥ 0.3μm.

[0011] In one implementation of the first aspect, a plurality of supports are uniformly distributed within the first frame area, except for the area where the transfer electrode is located.

[0012] In one implementation of the first aspect, within the first frame area, the minimum distance between the nearest support and the adapter electrode is d1, where 3mm ≥ d1 ≥ 1mm.

[0013] In one implementation of the first aspect, the minimum distance between the transfer electrode closest to the display area and the display area is d2, 600μm≥d2≥300μm; the minimum distance between the support body closest to the display area and the display area is d3, 600μm≥d3≥300μm.

[0014] In one implementation of the first aspect, the minimum distance between the adapter electrode closest to the display area and the display area is d2, and the minimum distance between the support body closest to the display area and the display area is d3, where d2 = d3.

[0015] In one implementation of the first aspect, the display panel further includes an encapsulating adhesive disposed in the non-display area, the encapsulating adhesive surrounding the display area;

[0016] Within the first frame area, the minimum distance between the adapter electrode closest to the encapsulating adhesive and the encapsulating adhesive is d4, where 400μm≥d4≥150μm;

[0017] Within the first border area, the minimum distance between the support closest to the encapsulating adhesive and the encapsulating adhesive is d5, where 400μm≥d5≥150μm.

[0018] In one implementation of the first aspect, the display panel further includes an encapsulating adhesive disposed in the non-display area, the encapsulating adhesive surrounding the display area;

[0019] Within the first frame area, the minimum distance between the adapter electrode closest to the encapsulating adhesive and the encapsulating adhesive is d4, and the minimum distance between the support body closest to the encapsulating adhesive and the encapsulating adhesive is d5, where d4 = d5.

[0020] In one implementation of the first aspect, the display panel further includes a main support pillar disposed in the display area, the main support pillar being located between the first substrate and the second substrate, and the support body and the main support pillar being fabricated in the same layer.

[0021] In one implementation of the first aspect, the density of the support body is less than or equal to the density of the main support column.

[0022] In one implementation of the first aspect, the height of the support body is the same as the height of the main support column.

[0023] In one implementation of the first aspect, the first transfer electrode includes at least two insulating layers and a first electrode, the first electrode being in contact with the second transfer electrode;

[0024] The support includes at least two insulating layers that are in the same layer as the insulating layer included in the first adapter electrode, but does not include the electrode that is in the same layer as the first electrode.

[0025] In one implementation of the first aspect, the density of the support is less than or equal to the density of the transition electrode.

[0026] In one implementation of the first aspect, the display panel further includes a plurality of touch electrodes disposed on the first substrate and located on the side of the first substrate facing the second substrate; the second adapter electrode is electrically connected to the touch electrodes.

[0027] Secondly, embodiments of this application provide a display device, including a display panel as provided in the first aspect.

[0028] In this embodiment, a support is also provided within the first frame area where the transition electrode is located. Therefore, the distance between the first substrate and the second substrate is closer near the location where the transition electrode is located than near the location where the support is located, and the stress on the first / second substrate in the first frame area is dispersed, thereby reducing the risk of cracks in the display panel. Furthermore, by making the height of the support less than the height of the transition electrode, the risk of cracks in the display panel can be effectively reduced. [Attached Image Description]

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of a display panel provided in an embodiment of this application;

[0031] Figure 2 A schematic diagram of a display panel provided in an embodiment of this application;

[0032] Figure 3 for Figure 1 and Figure 2 A cross-sectional view along the M1-M2 direction;

[0033] Figure 4 for Figure 1 and Figure 2 A cross-sectional view along the N1-N2 direction;

[0034] Figure 5 for Figure 1 and Figure 2 A cross-sectional view along the L1-L2 direction;

[0035] Figure 6 A schematic diagram of a display panel provided in an embodiment of this application;

[0036] Figure 7 A schematic diagram of a display panel provided in an embodiment of this application;

[0037] Figure 8 for Figure 6 and Figure 7 A cross-sectional view along the P1-P2 direction;

[0038] Figure 9 for Figure 6 and Figure 7 A cross-sectional view along the S1-S2 direction;

[0039] Figure 10 This is a schematic diagram of a display device provided in an embodiment of this application.

Detailed Implementation Methods

[0040] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0041] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0042] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0043] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0044] In the description of this specification, it should be understood that the terms "substantially", "approximately", "about", "about", "generally", "largely" used in the claims and embodiments of this application refer to values ​​that can be generally agreed upon within a reasonable range of process operations or tolerances, rather than a precise value.

[0045] It should be understood that although the terms "first," "second," etc., may be used to describe substrates, transition electrodes, etc. in the embodiments of this application, these substrates, transition electrodes, etc., should not be limited to these terms. These terms are only used to distinguish substrates, transition electrodes, etc., from one another. For example, without departing from the scope of the embodiments of this application, a first substrate may also be referred to as a second substrate, and similarly, a second substrate may also be referred to as a first substrate.

[0046] Through meticulous and in-depth research, the applicant in this case has provided a solution to the problems existing in the prior art.

[0047] Figure 1 This is a schematic diagram of a display panel provided in an embodiment of this application. Figure 2 This is a schematic diagram of a display panel provided in an embodiment of this application.

[0048] like Figure 1 and Figure 2 As shown, the display panel 001 provided in this embodiment includes a display area AA and a non-display area NA. The display area AA is the main area of ​​the display panel 001 for emitting light and displaying information, and the non-display area NA is the main area for setting up peripheral circuits and peripheral wiring. The non-display area NA may surround the display area AA.

[0049] The non-display area NA includes the first border area NA1, and the first border area NA1 is located on one side of the display area AA, such as... Figure 1 and Figure 2 As shown, the first border area NA1 is the region within the non-display area NA enclosed by the dashed frame. For example, as... Figure 1 As shown, the first border area NA1 is located below the display area AA; as Figure 2 As shown, the first border area NA1 is located to the left of the display area AA or to the right of the first border area NA1.

[0050] When the outer contour shape of the display panel 001 is rectangular or rounded rectangle, the first border area NA1 can be the bottom border of the display panel 001; for example... Figure 2 As shown, when the display panel 001 has a circular structure, the first border area NA1 can be the left border and / or right border of the display panel 001.

[0051] Figure 3 for Figure 1 and Figure 2 A cross-sectional view along the M1-M2 direction.

[0052] like Figure 3 As shown, the display panel 001 includes a first substrate 01 and a second substrate 02 disposed opposite to each other, a plurality of transition electrodes 10 and a plurality of supports 20. The transition electrodes 10 and supports 20 are all disposed between the first substrate 01 and the second substrate 02 and are all located in the first border area NA1.

[0053] like Figure 3 As shown, the transfer electrode 10 includes a first transfer electrode 11 and a second transfer electrode 12. The first transfer electrode 11 is disposed on the first substrate 01 and located on the side of the first substrate 01 facing the second substrate 02. The second transfer electrode 12 is disposed on the second substrate 02 and located on the side of the second substrate 02 facing the first substrate 01. The end of the first transfer electrode 11 facing the second transfer electrode 12 is conductive, and the end of the second transfer electrode 12 facing the first transfer electrode 11 is also conductive. In the same transfer electrode 10, the end 111 of the first transfer electrode 11 facing the second substrate 02 and the end 121 of the second transfer electrode 12 facing the first substrate 01 are in contact. Then, some electrical components disposed on the first substrate 01 and some electrical components disposed on the second substrate 02 can be electrically connected through the transfer electrode 10. That is, the electrical components on the first substrate 01 can provide signals to the electrical components on the second substrate 02 through the transfer electrode 10, and / or, the electrical components on the second substrate 02 can provide signals to the electrical components on the first substrate 01 through the transfer electrode 10.

[0054] In this embodiment, a support 20 is also provided within the first frame area NA1 where the transfer electrode 10 is located. That is, when the transfer electrode 10 is located in the non-display area NA on one side of the display area AA, a support 20 is also provided in that non-display area NA. Therefore, within the first frame area NA1, except near the location of the transfer electrode 10, the distance between the first substrate 01 and the second substrate 02 is closer near the location where the transfer electrode 10 is located than near the location where the support 20 is located, and the stress on the first substrate 01 / second substrate 02 in the first frame area NA1 is dispersed. Due to the provision of the support 20, the height difference of the display panel 001 at different locations within the first frame area NA1 is reduced, and the stress on the first substrate 01 and / or the second substrate 02 at different locations within the first frame area NA1 is more dispersed, thereby reducing the risk of cracks in the display panel 001.

[0055] Furthermore, in the first frame area NA1, the height of the transfer electrode 10 is h1, and the height of the support 20 is h2, where h2 < h1. That is, the height of the support 20 in the first frame area NA1 is less than the height of the transfer electrode 10. If the height of the support 20 is greater than the height of the transfer electrode 10, the larger support 20 will still cause cracks in the display panel 001, and may even worsen the cracking. By making the height of the support 20 less than the height of the transfer electrode 10, the risk of cracks in the display panel 001 can be effectively reduced.

[0056] In one embodiment of this application, the display panel 001 further includes a plurality of touch electrodes, which are disposed on the first substrate 01 and located on the side of the first substrate 01 facing the second substrate 02. The second adapter electrode 12 is electrically connected to the touch electrodes, so the touch electrodes can be electrically connected to the first adapter electrode 11 through the second adapter electrode 12.

[0057] It can be understood that the display panel 001 includes an array substrate and a touch substrate. The array substrate includes a first substrate 01 and a first transfer electrode 11 disposed on the first substrate 01. The touch substrate includes a second substrate 02 and a second transfer electrode 12 and a touch electrode disposed on the second substrate 02.

[0058] In addition, the array substrate may also include touch leads and pads. One end of the touch lead can be connected to the first adapter electrode 11 and the other end can be connected to the pad for bonding the touch chip. The arrangement of the first adapter electrode 11 and the second adapter electrode 12 enables signal transmission between the touch electrodes on the touch substrate and the touch chip.

[0059] In one embodiment of this application, such as Figure 3As shown, Δh = h1 - h2, and 0.6μm ≥ Δh ≥ 0.3μm, meaning that in the first border area NA1, the height of the support 20 is 0.3μm to 0.6μm shorter than the height of the transfer electrode 10. When the height difference between the support 20 and the transfer electrode 10 is greater, the supporting effect of the support 20 on the first substrate 01 and the second substrate 02 is not significantly different from that of the transfer electrode 10, which is not conducive to improving the crack problem of the display panel 001. However, when the height difference between the support 20 and the transfer electrode 10 is smaller, due to the influence of process precision, the distance between the first substrate 01 and the second substrate 02 supported by the support 20 is greater than the distance between the first substrate 01 and the second substrate 02 supported by the transfer electrode 10, and cracks are more likely to appear at the location of the support 20. The inventors discovered through verification that the risk of cracking in the display panel 001 is lowest when the height of the support 20 is 0.3 μm to 0.6 μm shorter than the height of the transfer electrode 10.

[0060] In one embodiment of this application, such as Figure 1 and Figure 2 As shown, except for the area where the transfer electrode 10 is located, multiple supports 20 are uniformly distributed within the first frame region NA1. When the multiple supports 20 are uniformly distributed within the first frame region NA1 where the transfer electrode 10 is located, the distance between the first substrate 01 and the second substrate 02 can be made relatively consistent at different positions in the first frame region NA1, thereby reducing the risk of cracks at different positions in the first frame region NA1.

[0061] In one embodiment of this application, such as Figure 1 and Figure 2 As shown, within the first border area NA1, the minimum distance between the nearest support 20 and the adapter electrode 10 is d1, and 3mm ≥ d1 ≥ 1mm. Within the first border area NA1, the support 20 closest to the adapter electrode 10 is support 20a, and the adapter electrode 10 closest to support 20 is the first adapter electrode 10a. The minimum distance between adjacent support 20a and adapter electrode 10a is greater than or equal to 1mm and less than or equal to 3mm.

[0062] Setting the minimum distance between adjacent supports 20 and transfer electrodes 10 to be greater than 1 mm can prevent supports 20 from affecting the contact and electrical conduction between the first transfer electrode 11 and the second transfer electrode 12 in the transfer electrode 10. Setting the minimum distance between adjacent supports 20 and transfer electrodes 10 to be less than 3 mm can enable supports 20 to effectively disperse the stress of the first substrate 01 / second substrate 02 at the location of the transfer electrode 10, thereby enhancing the role of supports 20 in reducing the risk of cracking.

[0063] It should be noted that, along the direction perpendicular to the surface of the display panel, the projected area of ​​the transfer electrode 10 is larger than the projected area of ​​the support 20. Within the first frame region NA1, along the direction perpendicular to its extension, there may be one transfer electrode 10, one support 20, or multiple support 20s. That is, within the first frame region NA1, along the width direction of the first frame region NA2, one transfer electrode 10 may be provided, but one or more support 20s may be provided.

[0064] Figure 4 for Figure 1 and Figure 2 A cross-sectional view along the N1-N2 direction. Figure 5 for Figure 1 and Figure 2 A cross-sectional view along the L1-L2 direction.

[0065] In one embodiment of this application, such as Figure 1 , Figure 2 and Figure 4 , Figure 5 As shown, the minimum distance between the adapter electrode 10, which is closest to the display area AA, and the display area AA is d2, and the minimum distance between the support 20, which is closest to the display area AA, and the display area AA is d3. 600μm≥d2≥300μm and 600μm≥d3≥300μm.

[0066] In this embodiment, the minimum distance between the transition electrode 10 and the support 20 and the display area AA is greater than 300μm. This can avoid the problem of Newton's rings and rainbow patterns caused by abrupt changes in the distance between the first substrate 01 and the second substrate 02 supported by the transition electrode 10 and the support 20 and the distance between the first substrate 01 and the second substrate 02 in the display area AA. Therefore, the display of the display area AA can be prevented from being affected by Newton's rings and rainbow patterns, thus avoiding the user's viewing experience. Furthermore, the support pillars of the display area AA can be prevented from affecting the electrical contact of the first transition electrode 11 and the second transition electrode 12 in the transition electrode 10.

[0067] In this embodiment, the minimum distance between the adapter electrode 10 and the support 20 and the display area AA is less than 600μm, which can ensure that the portion of the first substrate 01 and the second substrate 02 located in the first border area NA1 near the display area AA can be effectively supported.

[0068] In one embodiment of this application, the minimum distance between the adapter electrode 10 closest to the display area AA and the display area AA is d2, and the minimum distance between the support 20 closest to the display area AA and the display area AA is d3, where d2 = d3. That is, in this embodiment, the distance from the adapter electrode 10 closest to the display area AA to the display area AA is the same as the distance from the support 20 closest to the display area AA to the display area AA.

[0069] For example, the minimum distance between the adapter electrode 10 closest to the display area AA and the display area AA is 300 μm, and the minimum distance between the support 20 closest to the display area AA and the display area AA is 300 μm; for example, the minimum distance between the adapter electrode 10 closest to the display area AA and the display area AA is 600 μm, and the minimum distance between the support 20 closest to the display area AA and the display area AA is 600 μm; for example, the minimum distance between the adapter electrode 10 closest to the display area AA and the display area AA is 400 μm, and the minimum distance between the support 20 closest to the display area AA and the display area AA is 400 μm.

[0070] In this embodiment, by setting the minimum distance between the transfer electrode 10 and the support post to the display area AA to be equal, the stress distribution of the transfer electrode 10 and the support post on the side of the first frame area NA1 near the display area AA is more uniform.

[0071] In one embodiment of this application, such as Figure 1 , Figure 2 and Figure 4 , Figure 5 As shown, the display panel 001 also includes an encapsulating adhesive 30 disposed in the non-display area NA, the encapsulating adhesive 30 surrounding the display area AA, wherein the encapsulating adhesive 30 can be used to encapsulate the array substrate and the touch substrate.

[0072] Within the first border area NA1, the minimum distance between the adapter electrode 10 closest to the encapsulant 30 and the encapsulant 30 is d4, and the minimum distance between the support 20 closest to the encapsulant 30 and the encapsulant 30 is d5, where 400μm≥d4≥150μm and 400μm≥d5≥150μm.

[0073] In this embodiment, the minimum distance between the adapter electrode 10 and the support 20 and the encapsulant 30 is greater than 150μm. This can avoid the problem of Newton's rings and rainbow patterns caused by abrupt changes in the distance between the first substrate 01 and the second substrate 02 supported by the adapter electrode 10 and the support 20 and the distance between the first substrate 01 and the second substrate 02 supported by the encapsulant 30. Therefore, the Newton's rings and rainbow patterns can be avoided from affecting the user's visual experience. Furthermore, the encapsulant 30 can be avoided from affecting the electrical contact of the first adapter electrode 11 and the second adapter electrode 12 in the adapter electrode 10.

[0074] In this embodiment, the minimum distance between the adapter electrode 10 and the support 20 and the encapsulant 30 is less than 400μm, which can ensure that the portions of the first substrate 01 and the second substrate 02 located in the first border area NA1 near the encapsulant 30 can be effectively supported.

[0075] In one embodiment of this application, when the display panel 001 includes encapsulant 30, within the first frame area NA1, the minimum distance between the adapter electrode 10 closest to the encapsulant 30 and the encapsulant 30 is d4, and the minimum distance between the support 20 closest to the encapsulant 30 and the encapsulant 30 is d5, where d4 = d5. That is, in this embodiment, the distance from the adapter electrode 10 closest to the encapsulant 30 to the encapsulant 30 is the same as the distance from the support 20 closest to the encapsulant 30 to the encapsulant 30.

[0076] For example, the minimum distance between the adapter electrode 10 closest to the encapsulating adhesive 30 and the encapsulating adhesive 30 is 150 μm, and the minimum distance between the support 20 closest to the encapsulating adhesive 30 and the encapsulating adhesive 30 is 150 μm; for example, the minimum distance between the adapter electrode 10 closest to the encapsulating adhesive 30 and the encapsulating adhesive 30 is 400 μm, and the minimum distance between the support 20 closest to the encapsulating adhesive 30 and the encapsulating adhesive 30 is 400 μm; for example, the minimum distance between the adapter electrode 10 closest to the encapsulating adhesive 30 and the encapsulating adhesive 30 is 300 μm, and the minimum distance between the support 20 closest to the encapsulating adhesive 30 and the encapsulating adhesive 30 is 300 μm.

[0077] In this embodiment, the minimum distance between the adapter electrode 10 and the support 20 and the encapsulating adhesive 30 is equal, so the stress distribution of the adapter electrode 10 and the support column on the side of the first frame area NA1 near the encapsulating adhesive 30 is relatively uniform.

[0078] Figure 6 This is a schematic diagram of a display panel provided in an embodiment of this application. Figure 7 This is a schematic diagram of a display panel provided in an embodiment of this application. Figure 8 for Figure 6 and Figure 7 A cross-sectional view along the P1-P2 direction.

[0079] In one embodiment of this application, such as Figures 6-8 As shown, the display panel 001 also includes a main support column 40 and an auxiliary support column 50 disposed in the display area AA. The main support column 40 and the auxiliary support column 50 are located between the first substrate 01 and the second substrate 02, and are used to support the array substrate and the touch substrate.

[0080] like Figure 8As shown, in the display panel 001 provided in this application embodiment, an array layer 03, a light-emitting device layer 04, a planarization layer 05, a pixel definition layer 06 and a support pillar layer 07 are disposed on the side of the first substrate 01 facing the second substrate 02.

[0081] The planarization layer 05 is located between the array layer 03 and the light-emitting device layer 04. The array layer 03 includes multiple pixel circuits 030, the light-emitting device layer 04 includes multiple light-emitting devices 040, and the pixel definition layer 06 includes multiple openings, with the light-emitting devices 040 at least partially disposed within the openings. The light-emitting devices 040 are electrically connected to the pixel circuits 030 through vias in the planarization layer 05. The support pillar layer 07 includes multiple main support pillars 40 and auxiliary support pillars 50, with the height of the main support pillars 40 greater than the height of the auxiliary support pillars 50. The main support pillars 40 and auxiliary support pillars 50 are disposed on the pixel definition layer 06. The main support pillars 40 and auxiliary support pillars 50 can be integrally formed with the pixel definition layer 06, or they can be formed after the pixel definition layer 06 is fabricated.

[0082] In this embodiment, the support 20 disposed in the first border area NA1 is prepared in the same layer as the main support column 40, that is, the support 20 can be prepared and formed simultaneously with the main support column 40 and the auxiliary support column 50, which simplifies the process.

[0083] In one technical solution corresponding to this embodiment, such as Figure 6 and Figure 7 As shown, the density of the support body 20 can be equal to or less than the density of the main support column 40. When designing the height of the first transfer electrode 11 and the second transfer electrode 12 in the transfer electrode 10, it is necessary to consider the influence of the support column of the display area AA on the contact force between the first transfer electrode 11 and the second transfer electrode 12. By designing the density of the support body 20 to be equal to or less than the density of the main support column 40, it is possible to avoid the density of the support body 20 being too large and affecting the contact force between the first transfer electrode 11 and the second transfer electrode 12, so that the main support column 40 of the display area AA does not affect the electrical contact between the first transfer electrode 11 and the second transfer electrode 12.

[0084] In one technical solution corresponding to this embodiment, such as Figure 8 As shown, the height of the support body 20 is the same as the height of the main support column 40. Therefore, the support body 20 and the main support column 40 can be manufactured using the same process in the same manufacturing process, which can reduce the manufacturing difficulty of the support body 20.

[0085] It should be noted that, in addition to being disposed within the first frame area NA1 on the same layer as the adapter electrode 10, the support 20 can also be disposed in the second frame area, which is the non-display area NA where the adapter electrode 10 is not disposed. Optionally, as... Figure 7As shown, the support body 20 is located in the non-display area NA on either side of the display area AA in the display panel 001.

[0086] Figure 9 for Figure 6 and Figure 7 A cross-sectional view along the S1-S2 direction.

[0087] In one embodiment of this application, such as Figure 9 As shown, the first transfer electrode 11 includes at least two insulating layers (unpattern-free films) and a first electrode 11a, which is in contact with the second transfer electrode 12. The first transfer electrode 11 includes multiple stacked insulating layers, thereby providing it with a certain height to ensure sufficient contact with the second transfer electrode 12.

[0088] The support 20 includes at least two insulating layers that are in the same layer as the insulating layer included in the first transfer electrode 11, but does not include an electrode in the same layer as the first electrode 11a. That is, the film layer structure of the support 20 can partially overlap with the film layer structure of the first transfer electrode 11, meaning that both include structures located in the same insulating layer. However, the support 20 omits the first electrode 11a, which is in electrical contact with the second transfer electrode 12, relative to the first transfer electrode 11.

[0089] In this embodiment, the support 20 can be fabricated simultaneously with the first transfer electrode 11, which saves costs and is easy to implement.

[0090] In one technical solution corresponding to this embodiment, such as Figure 6 and Figure 7 As shown, if the density of the support 20 is less than or equal to the density of the transfer electrode 10, it can prevent the excessive density of the support 20 from affecting the contact strength between the first transfer electrode 11 and the second transfer electrode 12.

[0091] Figure 10 This is a schematic diagram of a display device provided in an embodiment of this application.

[0092] This application provides a display device, such as... Figure 10 As shown, it includes the display panel 001 provided in any of the above embodiments. The display device provided in the embodiments of this application can be a mobile phone. In addition, the display device provided in the embodiments of this application can also be a computer, television, or other display device.

[0093] In this embodiment, a support 20 is also provided within the first frame region NA1 where the transfer electrode 10 is located. Therefore, the distance between the first substrate 01 and the second substrate 02 is closer near the location where the transfer electrode 10 is located than near the location where the support 20 is located. This disperses the stress on the first substrate 01 / second substrate 02 in the first frame region NA1, thereby reducing the risk of cracks appearing in the display panel 001 of the display device. Furthermore, by making the height of the support 20 less than the height of the transfer electrode 10, the risk of cracks appearing in the display panel 001 of the display device can be effectively reduced.

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

Claims

1. A display panel, characterized in that, The display panel includes a display area and a non-display area, wherein the non-display area includes a first border area located on one side of the display area; the display panel includes: The first substrate and the second substrate are positioned opposite each other; A transfer electrode is disposed in the first frame area. The transfer electrode includes a first transfer electrode and a second transfer electrode. The first transfer electrode is disposed on the first substrate and located on the side of the first substrate facing the second substrate. The second transfer electrode is disposed on the second substrate and located on the side of the second substrate facing the first substrate. In the same transfer electrode, the end of the first transfer electrode facing the second substrate is in contact with the end of the second transfer electrode facing the first substrate. Multiple supports are disposed in the first border area and located between the first substrate and the second substrate; the height of the transfer electrode is h1, and the height of the supports is h2, where h2 < h1; △h = h1 - h2, where 0.6μm ≥ △h ≥ 0.3μm.

2. The display panel according to claim 1, characterized in that, Except for the area where the adapter electrode is located, the plurality of supports are evenly distributed within the first frame area.

3. The display panel according to claim 1, characterized in that, Within the first frame area, the minimum distance between the nearest support and the adapter electrode is d1, where 3mm ≥ d1 ≥ 1mm.

4. The display panel according to claim 1, characterized in that, The minimum distance between the transfer electrode closest to the display area and the display area is d2, where 600μm≥d2≥300μm; The minimum distance between the support closest to the display area and the display area is d3, where 600μm≥d3≥300μm.

5. The display panel according to claim 1, characterized in that, The minimum distance between the adapter electrode closest to the display area and the display area is d2, and the minimum distance between the support body closest to the display area and the display area is d3, where d2 = d3.

6. The display panel according to claim 1, characterized in that, The display panel also includes an encapsulating adhesive disposed in the non-display area, the encapsulating adhesive surrounding the display area; Within the first frame area, the minimum distance between the adapter electrode closest to the encapsulating adhesive and the encapsulating adhesive is d4, where 400μm≥d4≥150μm; Within the first border area, the minimum distance between the support closest to the encapsulating adhesive and the encapsulating adhesive is d5, where 400μm≥d5≥150μm.

7. The display panel according to claim 1, characterized in that, The display panel also includes an encapsulating adhesive disposed in the non-display area, the encapsulating adhesive surrounding the display area; Within the first frame area, the minimum distance between the adapter electrode closest to the encapsulating adhesive and the encapsulating adhesive is d4, and the minimum distance between the support body closest to the encapsulating adhesive and the encapsulating adhesive is d5, where d4 = d5.

8. The display panel according to claim 1, characterized in that, The display panel further includes a main support pillar disposed in the display area. The main support pillar is located between the first substrate and the second substrate, and the support body and the main support pillar are fabricated in the same layer.

9. The display panel according to claim 8, characterized in that, The density of the support body is less than or equal to the density of the main support column.

10. The display panel according to claim 8, characterized in that, The height of the support body is the same as the height of the main support column.

11. The display panel according to claim 1, characterized in that, The first adapter electrode includes at least two insulating layers and a first electrode, the first electrode being in contact with the second adapter electrode; The support includes at least two insulating layers that are in the same layer as the insulating layer included in the first adapter electrode, but does not include the electrode that is in the same layer as the first electrode.

12. The display panel according to claim 11, characterized in that, The density of the support is less than or equal to the density of the adapter electrode.

13. The display panel according to claim 1, characterized in that, The display panel also includes a plurality of touch electrodes, which are disposed on the first substrate and located on the side of the first substrate facing the second substrate; the second adapter electrode is electrically connected to the touch electrodes.

14. A display device, characterized in that, Includes the display panel as described in any one of claims 1-13.

Citation Information

Patent Citations

  • Display panel and display device having the same

    CN109166826A

  • Display device and method of manufacturing same

    CN109686767A