Display panel and display device

Abstract

The application provides a display panel and a display device, the display panel comprising: a panel main body having a binding area, a first terminal group being arranged in the binding area; a connecting piece being attached to the surface of the first terminal group; a circuit board having a second terminal group, a third terminal group and a separation groove, the separation groove separating the second terminal group and the third terminal group into two parts arranged along the length direction of the circuit board, the third terminal group being arranged close to the outer side of the circuit board, and the second terminal group and the third terminal group being electrically connected to the first terminal group through the connecting piece; wherein after the circuit board is connected to the connecting piece, part of the connecting piece is filled in the separation groove to seal the second terminal group. The technical scheme of the application can improve the technical problem that the terminals of the flexible circuit board are prone to corrosion.

Description

Technical Field

[0001] This invention relates to the field of display panel technology, and more specifically to a display panel and display device. Background Technology

[0002] In related technologies, display modules typically use FPCs (Flexible Printed Circuits) to interact with the overall device. An FPC is usually composed of a cover film, a copper foil substrate, and another cover film. Partially, the cover film on the bottom side of the FPC is removed to expose the copper layer of the copper foil substrate, which is then etched into finger shapes to form FPC pins (terminals). The FPC pins are fixed to the panel using ACF (Anisotropic Conductive Film), which provides conductivity in the thickness direction, enabling signal exchange between the FPC pins and the panel pins. However, moisture can easily penetrate the pins from the top along the pin direction, causing localized corrosion of the FPC pins. This can lead to malfunctions in the display panel, reducing the stability and lifespan of the device. Summary of the Invention

[0003] Embodiments of the present invention provide a display panel and a display device that can improve the technical problem of easy corrosion of terminals of flexible circuit boards.

[0004] In a first aspect, embodiments of the present invention provide a display panel, the display panel comprising: a panel body having a bonding area, wherein a first terminal group is disposed in the bonding area; a connector being attached to the surface of the first terminal group; a circuit board having a second terminal group, a third terminal group, and an isolation groove, the isolation groove separating the second terminal group and the third terminal group into two parts spaced apart along the length direction of the circuit board, the third terminal group being disposed near the outer side of the circuit board, and the second terminal group and the third terminal group being electrically connected to the first terminal group via the connector; wherein, after the circuit board is connected to the connector, a portion of the connector is filled in the isolation groove to seal the second terminal group.

[0005] In one embodiment, the isolation groove extends along the width direction of the circuit board.

[0006] In one embodiment, the extension length of the isolation groove in the second direction is equal to the extension length of the second terminal group in the second direction.

[0007] In one embodiment, the extension length of the isolation groove along the first direction is L, where 0.1mm ≤ L ≤ 0.2mm.

[0008] In one embodiment, the first terminal group includes a plurality of first terminals spaced apart along a second direction, and the second terminal group includes a plurality of second terminals spaced apart along a second direction, with the first terminals and the second terminals corresponding one-to-one.

[0009] In one embodiment, the third terminal group includes a plurality of third terminals arranged at intervals along the second direction, and the plurality of third terminals are configured to correspond one-to-one with the second terminals.

[0010] In one embodiment, the third terminal group includes a third terminal extending along a second direction, the extension length of the third terminal along the second direction being equal to the extension length of the second terminal group along the second direction, and the third terminal having a continuous structure.

[0011] In one embodiment, the extension length of the connector along the first direction is greater than or equal to the extension length of the first terminal group along the first direction.

[0012] In one embodiment, the connector is specifically an anisotropic conductive film.

[0013] Secondly, embodiments of the present invention provide a display device, the display device including a display panel.

[0014] By applying the technical solution of the present invention, an isolation groove is provided on the circuit board and the isolation groove is located between the second terminal group and the third terminal group. When the circuit board and the panel body are electrically connected through the connector, some of the connectors can fill the isolation groove to seal the second terminal group. This can reduce the probability of external moisture eroding the second terminal group, thereby helping to prevent display abnormalities in the display panel, and thus ensuring the stability of the device during use and extending its service life. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the display panel provided in an embodiment of the present invention;

[0017] Figure 2 This is a side view of the display panel provided in an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the circuit board structure provided in an embodiment of the present invention;

[0019] Figure 4This is a schematic diagram of another embodiment of the circuit board provided in the embodiments of the present invention.

[0020] The above figures include the following reference numerals:

[0021] 10. Panel body; 11. First terminal group; 111. First terminal;

[0022] 20. Connectors;

[0023] 30. Circuit board; 31. Second terminal group; 311. Second terminal; 32. Third terminal group; 321. Third terminal; 33. Isolation groove; X, first direction; Y, second direction. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figures 1 to 4 As shown, in a first aspect, embodiments of the present invention provide a display panel, the display panel comprising: a panel body 10 having a bonding area, wherein a first terminal group 11 is disposed in the bonding area; a connector 20 being attached to the surface of the first terminal group 11; a circuit board 30 having a second terminal group 31, a third terminal group 32, and an isolation groove 33, the isolation groove 33 separating the second terminal group 31 and the third terminal group 32 into two parts spaced apart along the length direction of the circuit board 30, the third terminal group 32 being disposed near the outer side of the circuit board 30, and the second terminal group 31 and the third terminal group 32 being electrically connected to the first terminal group 11 via the connector 20; wherein, after the circuit board 30 is connected to the connector 20, a portion of the connector 20 is filled in the isolation groove 33 to seal the second terminal group 31.

[0026] By applying the technical solution of the present invention, an isolation groove 33 is provided on the circuit board 30 and the isolation groove 33 is located between the second terminal group 31 and the third terminal group 32. When the circuit board 30 and the panel body 10 are electrically connected through the connector 20, part of the connector 20 can fill the isolation groove 33 to seal the second terminal group 31. This can reduce the probability of external moisture eroding the second terminal group 31, thereby helping to prevent display abnormalities in the display panel, and thus ensuring the stability of the device during use and extending its service life.

[0027] The display panel also includes a display area, which comprises a thin-film transistor array layer located within the display area, an anode layer disposed on the thin-film transistor array layer, an organic light-emitting layer disposed on the anode layer, and a cathode layer disposed on the organic light-emitting layer. An integrated circuit is also disposed on the circuit board, which is capable of transmitting electrical signals to the thin-film transistors and cathode devices in the thin-film transistor array layer within the display area.

[0028] In this application, the circuit board 30 is specifically a flexible circuit board 30, which is composed of a cover film + copper foil substrate + cover film stacked in sequence, with part of the copper foil substrate exposed to form the second terminal group 31 and the third terminal group 32.

[0029] Furthermore, the display panel includes: a back panel, multiple bonding terminals, multiple connecting leads, an FPC (Flexible Printed Circuit), and multiple light-emitting devices, wherein the light-emitting devices are organic light-emitting diodes. Multiple connecting leads are located on the sides of the back panel, and multiple light-emitting devices are located on the front of the back panel. The connecting leads on the sides connect the front and back circuits of the back panel, allowing the FPC on the back to transmit signals and voltages to the multiple light-emitting devices, controlling the light-emitting devices to emit light.

[0030] Specifically, the isolation groove 33 extends along the width of the circuit board 30. This arrangement not only reduces the processing difficulty of the isolation groove 33, but also makes the structure of the second terminal group 31 and the third terminal group 32 more orderly, thereby improving the processing efficiency of the device and reducing the production cost of the device.

[0031] Where X represents the length direction of the circuit board 30, and Y represents the width direction of the circuit board 30.

[0032] Of course, in other embodiments of this application, the isolation groove 33 may also be configured to extend in other directions, as long as it can separate the second terminal group 31 and the third terminal group 32 along the first direction.

[0033] Furthermore, the extension length of the isolation groove 33 in the second direction is equal to the extension length of the second terminal group 31 in the second direction. This arrangement ensures that the second terminal group 31 and the third terminal group 32 can be completely separated, thereby improving the sealing effect of the connector 20 on the second terminal group 31 and preventing external moisture from corroding the second terminal group 31.

[0034] Specifically, the extension length of the isolation groove 33 along the first direction is L, where 0.1mm ≤ L ≤ 0.2mm. When L < 0.1mm, the extension length of the isolation groove 33 along the first direction is too small, making it impossible to fill the isolation groove 33 with enough connectors 20, thus reducing the sealing effect on the second terminal group 31. When L > 0.2mm, the extension length of the isolation groove 33 along the first direction is too large, causing the isolation groove 33 to be filled with too many connectors 20, thus wasting the material of the connectors 20. Therefore, keeping 0.1mm ≤ L ≤ 0.2mm not only ensures the sealing effect on the second terminal group 31 but also does not increase additional production costs, which is beneficial for cost reduction and efficiency improvement.

[0035] In this application, L can be set to other values ​​such as 0.1mm, 0.15mm or 0.2mm. The specific setting should be selected according to the usage environment of the device, so as to improve the applicability and scope of application of the device.

[0036] Specifically, the first terminal group 11 includes a plurality of first terminals 111 arranged at intervals along the second direction, and the second terminal group 31 includes a plurality of second terminals 311 arranged at intervals along the second direction. The first terminals 111 and the second terminals 311 are arranged in a one-to-one correspondence. This arrangement ensures that when the circuit board 30 is connected to the panel body 10, there will be no mutual interference between adjacent terminals, which is beneficial to ensuring the stability of data transmission and thus ensuring the normal operation of the device.

[0037] like Figure 3 As shown, the third terminal group 32 includes a plurality of third terminals 321 arranged at intervals along the second direction, with each third terminal 321 corresponding to a second terminal 311. This arrangement, utilizing the barrier effect of the third terminal group 32 and the connector 20, can minimize the corrosion of the second terminal group 31 by external moisture, thereby ensuring the sealing effect of the device as much as possible.

[0038] like Figure 4 As shown, specifically, the third terminal group 32 includes a third terminal 321 extending along the second direction. The extension length of the third terminal 321 along the second direction is equal to the extension length of the second terminal group 31 along the second direction. The third terminal 321 is a continuous structure and is an integrally sealed structure.

[0039] Furthermore, the extension length of the connector 20 along the first direction is greater than or equal to the extension length of the first terminal group 11 along the first direction. This arrangement ensures that the connector 20 completely covers the first terminal group 11, so that when the circuit board 30 is connected to the panel body 10, there will be no situation where the terminals cannot be electrically connected, thus ensuring normal signal transmission of the device.

[0040] Specifically, connector 20 is an anisotropic conductive film.

[0041] Furthermore, the connector 20 covers the entire structure of the third terminal 321.

[0042] Secondly, embodiments of the present invention provide a display device, the display device including a display panel.

[0043] By applying the technical solution of this invention, an isolation groove 33 is provided on the circuit board 30, and the isolation groove 33 is positioned between the second terminal group 31 and the third terminal group 32. When the circuit board 30 is electrically connected to the panel body 10 via the connector 20, part of the connector 20 can fill the isolation groove 33 to seal the second terminal group 31. This reduces the probability of external moisture eroding the second terminal group 31, thereby helping to prevent display abnormalities in the display panel, ensuring the stability of the device during use, and extending its service life. It should be noted that the terminology used herein is for describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0044] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0045] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0046] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0047] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A display panel, characterized in that, The display panel includes: The panel body has a binding area, and a first terminal group is provided in the binding area; A connector is attached to the surface of the first terminal group; The circuit board has a second terminal group, a third terminal group, and an isolation groove. The second terminal group and the third terminal group are arranged on the same layer. The isolation groove is arranged between the second terminal group and the third terminal group and separates the second terminal group and the third terminal group into two parts spaced apart along the length direction of the circuit board. The length direction is referred to as the first direction. The third terminal group is arranged near the outer side of the circuit board. The second terminal group and the third terminal group are electrically connected to the first terminal group through the connector. Wherein, after the circuit board is connected to the connector, part of the connector is filled in the isolation groove to seal the second terminal group.

2. The display panel according to claim 1, characterized in that, The isolation groove extends along the width direction of the circuit board, and the width direction is referred to as the second direction.

3. The display panel according to claim 2, characterized in that, The extension length of the isolation groove in the second direction is equal to the extension length of the second terminal group in the second direction.

4. The display panel according to claim 2, characterized in that, The length of the isolation groove along the first direction is L, where 0.1mm ≤ L ≤ 0.2mm.

5. The display panel according to claim 2, characterized in that, The first terminal group includes a plurality of first terminals arranged at intervals along the second direction, and the second terminal group includes a plurality of second terminals arranged at intervals along the second direction, with the first terminals and the second terminals corresponding one-to-one.

6. The display panel according to claim 5, characterized in that, The third terminal group includes a plurality of third terminals arranged at intervals along the second direction, and the plurality of third terminals are configured to correspond one-to-one with the second terminals.

7. The display panel according to claim 5, characterized in that, The third terminal group includes a third terminal extending along a second direction, the extension length of the third terminal along the second direction being equal to the extension length of the second terminal group along the second direction, and the third terminal having a continuous structure.

8. The display panel according to claim 1, characterized in that, The extension length of the connector along the first direction is greater than or equal to the extension length of the first terminal group along the first direction.

9. The display panel according to claim 1, characterized in that, The connector is specifically an anisotropic conductive adhesive film.

10. A display device, characterized in that, The display device includes a display panel as claimed in any one of claims 1-9.

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