Display panel, display module and display device

Abstract

The utility model provides a display panel, a display module and a display device.The display panel comprises a substrate which comprises a display area and non-display areas at least located on one side of the display area, and at least one non-display area comprises a protective film stripping area; the adhesive residue collecting structure is arranged on one side of the substrate and located in the protective film stripping area. According to the display panel provided by the invention, the residual adhesive collecting structure is arranged in the protective film stripping area, and the residual adhesive collecting structure is used for collecting the residual adhesive of the protective film when the protective film is stripped, so that the scattered residual adhesive of the protective film is prevented from shielding an alignment reference point and a crimping terminal, and product alignment in a subsequent process is avoided; and the influence of an electrical test after the product is crimped is avoided, so that the product performance is ensured.

Description

Technical Field

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

[0002] Organic light-emitting diode (OLED) and flat panel display devices based on light-emitting diode (LED) technologies are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body and wide range of applications, becoming the mainstream of display devices.

[0003] However, the performance of current display devices needs to be improved. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a display panel that can collect residual adhesive from the protective film during the peeling process, so as to avoid affecting subsequent processes.

[0005] To achieve the above objectives, this application provides a display panel comprising:

[0006] A substrate includes a display area and a non-display area located on at least one side of the display area, wherein at least one of the non-display areas includes a protective film peel-off area;

[0007] A residual adhesive collection structure is disposed on one side of the substrate and located in the protective film peeling area.

[0008] In one embodiment, the residual adhesive collection structure includes a collection tank.

[0009] In one embodiment, the collection channels include a plurality of collection channels arranged in an array within the protective film peeling area.

[0010] In one embodiment, the collection tank includes a plurality of first collection tanks arranged along a first direction and a plurality of second collection tanks arranged along the first direction, wherein the first collection tanks and the second collection tanks are staggered along a second direction; wherein the first direction and the second direction intersect.

[0011] In one embodiment, the cross-section of the collection groove parallel to the substrate includes a circle, a rectangle, a trapezoid, a concave shape, and a convex shape;

[0012] Preferably, when the cross-section of the collection groove parallel to the substrate is circular, the diameter of the circle is 10-20 μm.

[0013] In one embodiment, the distance between two adjacent collection tanks is 5-10 μm.

[0014] In one embodiment, the display panel further includes:

[0015] A first metal layer is disposed on one side of the substrate, and the residual adhesive collection structure is formed on the first metal layer;

[0016] Preferably, the first metal layer is a metal layer on the same layer as the bonding terminal;

[0017] Preferably, the collection groove is formed on the first metal layer.

[0018] In one embodiment, at least one of the non-display areas includes a bonding area, and the adhesive residue collection structure is used to collect adhesive residue from the protective film when the protective film is peeled off from the bonding area.

[0019] Preferably, the protective film peeling area is disposed on the bonding area and located on both sides of the bonding area, and the protective film peeling area is removed from the substrate after the protective film is peeled off.

[0020] Based on the same inventive concept, this application also discloses a display module, the display module including the display panel described in any of the preceding claims, and

[0021] A protective film is disposed on the side of the residual adhesive collection structure away from the substrate, and is at least located in the non-display area where the protective film peeling area is located.

[0022] Based on the same inventive concept, this application also discloses a display device, which includes the above-described display module.

[0023] Compared with the prior art, the display panel provided in this application has a residual adhesive collection structure in the protective film peeling area. The residual adhesive collection structure collects the residual adhesive of the protective film when the protective film is peeled off, avoiding the scattered residual adhesive from blocking the alignment reference point and the crimping terminal. This avoids affecting the product alignment in subsequent processes and the electrical testing after product crimping, thereby ensuring product performance. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of a display panel provided in one embodiment of this application;

[0026] Figure 2 for Figure 1 Sectional view along AA;

[0027] Figure 3 This is a schematic diagram of a non-display area in a display panel provided in an embodiment of this application;

[0028] Figure 4 A schematic diagram of a display panel provided for another embodiment of this application;

[0029] Figure 5 This is a schematic diagram of a residual adhesive collection structure in a display panel provided in an embodiment of this application;

[0030] Figure 6 for Figure 5 Sectional view along BB;

[0031] Figure 7 This is a schematic diagram of a residual adhesive collection structure in a display panel provided in another embodiment of this application;

[0032] Figure 8 This is a schematic diagram of a residual adhesive collection structure in a display panel provided in another embodiment of this application;

[0033] Figure 9 This is a schematic diagram of a residual adhesive collection structure in a display panel provided in another embodiment of this application;

[0034] Figure 10 This is a schematic diagram of the hierarchical structure of a display module in the non-display area, provided in another embodiment of this application.

[0035] Marker explanation:

[0036] 1. Substrate; 11. Display area; 12. Non-display area; 121. First non-display area; 122. Second non-display area; 123. Third non-display area; 124. Fourth non-display area; 13. Bonding area; 14. Protective film peeling area;

[0037] 2. Residual adhesive collection structure; 21. Collection tank; 211. First collection tank; 212. Second collection tank;

[0038] 3. First metal layer;

[0039] 4. Protective film;

[0040] 5. Alignment reference points;

[0041] 6. Crimped terminals;

[0042] 7. Driver chip. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0044] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" 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.

[0045] Currently, the production and cutting process of flexible AMOLED (Active-matrix organic light-emitting diode) all uses laser cutting. After laser cutting, the protective film on the product's Pad area (also known as the bonding area) needs to be peeled off to expose the test crimp terminals, module FPCB (printed circuit board), bonding terminals, and IC (driver chip) bonding area.

[0046] In the process of peeling off the protective film on the product's pad area, a peeling tool is usually used to rub and press the upper protective film to deform it, so that the subsequent process can grasp and remove the upper protective film.

[0047] Through long-term research, the inventors discovered that when the peeling needle performs a rubbing motion on the upper protective film, the adhesive on the protective film at the rubbing points is separated from the upper protective film by the rubbing pressure of the peeling needle, forming scattered adhesive residue. This scattered adhesive residue can obstruct the product alignment reference points and crimping terminals, affecting product alignment in subsequent processes and electrical testing after crimping. Based on this, this application provides a panel solution, as detailed in the following embodiments.

[0048] Reference Figure 1-3 As shown, one embodiment of this application discloses a display panel, which includes a substrate 1 and a residual adhesive collection structure 2.

[0049] The substrate 1 includes a display area 11 and a non-display area 12 located on at least one side of the display area 11. At least one non-display area 12 includes a protective film peeling area 14. The residual adhesive collection structure 2 is disposed on one side of the substrate 1 and located in the protective film peeling area 14. Furthermore, the non-display area 12 is also provided with an alignment reference point 5, a crimping terminal 6, a driver chip 7, etc.

[0050] The display panel provided in this embodiment has a residual adhesive collection structure 2 set in the protective film peeling area 14. The residual adhesive collection structure 2 collects the residual adhesive of the protective film when the protective film is peeled off, avoiding the scattered residual adhesive of the protective film from blocking the alignment reference point 5 and the crimping terminal 6, thereby avoiding the impact on the product alignment in subsequent processes and the electrical test after the product is crimped, thus ensuring the product performance.

[0051] The non-display area 12 typically includes a first non-display area 121, a second non-display area 122, a third non-display area 123, and a fourth non-display area 124. These three areas surround the display area 11. The non-display area 12 containing the bonding area 13 and the protective film peeling area 14 is typically a top or bottom border. In this embodiment, the non-display area 12 containing the bonding area 13 and the protective film peeling area 14 is a top border. In other embodiments, the non-display area 12 containing the bonding area 13 and the protective film peeling area 14 can be a bottom border, a left border, or a right border; no specific limitation is made.

[0052] Reference Figure 3 and 4 As shown, in one embodiment, at least one non-display area 12 includes a bonding area 13, and the adhesive residue collection structure 2 is used to collect adhesive residue from the protective film when the protective film is peeled off from the bonding area 13.

[0053] Preferably, the protective film peeling area 14 is disposed on both sides of the bonding area 13. The protective film peeling area 14 is removed from the substrate 1 after the protective film is peeled off. Therefore, the residual adhesive collected by the adhesive residue collection structure 2 will not remain on the final product, avoiding any impact on the normal use of the product. Further, the protective film peeling area 14 is removed from the substrate 1 using laser cutting. In subsequent processes, the bonding area 13 needs to be folded to the back of the substrate 1. Removing the protective film peeling area 14 from the substrate 1 avoids the curved corner area during folding.

[0054] Reference Figure 5-6 As shown, in one embodiment, the residual adhesive collection structure 2 includes a collection groove 21, which is used to collect the residual adhesive of the protective film. At the same time, during the protective film peeling process, the collection groove 21 works with the peeling needle to crush and break down the residual adhesive of the protective film, making it easier for the collection groove 21 to collect it.

[0055] In one embodiment, the collection tank 21 includes multiple collection tanks, which are arranged in an array within the protective film peeling area 14. This effectively ensures the rubbing and pressing effect on the residual adhesive of the protective film, ensures the rapid fragmentation of the residual adhesive, and improves the collection efficiency of the residual adhesive.

[0056] Please continue to refer to Figure 5 As shown, in one embodiment, the collection tank 21 includes a plurality of first collection tanks 211 arranged along a first direction (Y direction in the figure) and a plurality of second collection tanks 212 arranged along the first direction. The first collection tanks 211 and the second collection tanks 212 are staggered along a second direction (X direction in the figure). The intersection of the first and second directions effectively ensures the uniformity of the collection tanks 21 arrangement, and the staggered arrangement of the collection tanks effectively improves the rubbing and pressing effect on the residual adhesive of the protective film, ensuring rapid fragmentation of the residual adhesive. Further, the first and second directions are perpendicular. (Refer to...) Figure 7 As shown, in another embodiment, the collection troughs 21 are arranged at intervals along the first direction and at intervals along the second direction; in other embodiments, the collection troughs 21 may have other arrangements, which are not specifically limited.

[0057] In one embodiment, the cross-section of the collecting groove 21 parallel to the substrate 1 includes a circle, rectangle, trapezoid, concave, convex, etc., and is not specifically limited, as long as it can achieve the effect of rubbing and pressing the residual adhesive of the protective film and collecting the residual adhesive; wherein, when the cross-section of the collecting groove 21 parallel to the substrate 1 is rectangular, it can be referred to Figure 8 and 9 As shown. Further, when the cross-section of the collection groove 21 parallel to the substrate 1 is circular, the diameter of the circle is 10-20 μm, such as 10 μm, 12 μm, 15 μm and 20 μm; usually, the size of the protective film residue is 100-400 μm, such as 100 μm, 150 μm, 200 μm, 300 μm and 400 μm; since the protective film residue is usually an irregular structure, the collection groove 21 with a diameter of 10-20 μm can better cooperate with the peeling needle to crush the protective film residue and collect it by the collection groove 21 after it is broken down.

[0058] In one embodiment, the distance between two adjacent collection tanks 21 is 5-10 μm, such as 5 μm, 6 μm, 8 μm and 10 μm; the appropriate distance between two adjacent collection tanks 21 can also ensure the rubbing and pressing effect on the residual adhesive of the protective film. This distance can ensure that the density of the collection tanks 21 is high enough, while avoiding the increase in process difficulty and the impact on structural strength caused by the distance being too small.

[0059] Reference Figure 2As shown, in one embodiment, the display panel further includes a first metal layer 3 disposed on one side of the substrate 1, and a residual adhesive collection structure 2 is formed on the first metal layer 3. The display panel typically includes multiple metal layers, which meet different wiring requirements. In this embodiment, the first metal layer 3 can be any metal layer in the display panel.

[0060] Preferably, the first metal layer 3 is a metal layer on the same layer as the bonding terminal, and the bonding terminal and the residual adhesive collection structure 2 can be formed simultaneously when the first metal layer 3 is patterned.

[0061] Preferably, the collection groove 21 is formed on the first metal layer 3. During the preparation of the first metal layer 3, it is formed in the protective film peeling area 14, and the collection groove 21 is formed by drilling holes in the first metal layer 3 within the protective film peeling area 14. The protective film peeling area 14 is removed from the substrate 1 after the protective film is peeled off, simultaneously removing the collection groove 21. Therefore, the residual adhesive collected by the collection groove 21 will not remain on the final product, avoiding any impact on the normal use of the product. In another embodiment, the first metal layer 3 can be a metal layer outside the original metal layer of the display panel, specifically designed for collecting residual adhesive. This metal layer can only cover the protective film peeling area 14, and in subsequent removal processes, this metal layer is completely and directly removed.

[0062] Furthermore, the display panel also includes other metal layers, with different metal layers meeting different wiring requirements. For example, it includes metal layers M1, M2, M3, and M4; wherein the first metal layer 3 is any one of metal layers M1, M2, M3, or M4.

[0063] Reference Figure 10 As shown, in one embodiment, another embodiment of this application discloses a display module, which includes a display panel as described above and a protective film 4. The protective film 4 is disposed on the side of the residual adhesive collection structure 2 away from the substrate 1, and is at least located in the non-display area 12 where the protective film peeling area 14 is located. At this time, the protective film 4 has not yet been peeled off from the bonding area 13. In subsequent process steps, it is necessary to use a peeling needle to peel the protective film 4 off from the bonding area 13, and after peeling, the protective film peeling area 14 is cut off from the substrate 1, referring to... Figure 3 As shown. Furthermore, the protective film 4 also covers the display area 11, while simultaneously protecting the display area 11 and the non-display area 12.

[0064] The display module provided in this embodiment uses a residual adhesive collection structure 2 in the protective film peeling area 14 to collect residual adhesive from the protective film when it is peeled off from the bonding area 13. This prevents the scattered residual adhesive from obscuring the alignment reference point 5 and the crimping terminal 6, thereby avoiding any impact on the product alignment in subsequent processes and the electrical testing after product crimping, thus ensuring product performance.

[0065] Another embodiment of this application discloses a display device that includes the display module described in the above embodiments. This display device can be used on smart devices (such as mobile phones, VR devices, computers, televisions, in-vehicle displays, etc.).

[0066] The display device provided in this embodiment has a display module with a residual adhesive collection structure 2 set in the protective film peeling area 14. The residual adhesive collection structure 2 collects the residual adhesive of the protective film when the protective film is peeled from the bonding area 13, avoiding the scattered residual adhesive of the protective film from blocking the alignment reference point 5 and the crimping terminal 6. This avoids affecting the product alignment in subsequent processes and the electrical testing after product crimping, which is beneficial to the performance of the display device.

[0067] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description.

[0068] It should be noted that the above description describes some embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0069] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A display panel, characterized in that, include: A substrate includes a display area and a non-display area located on at least one side of the display area, wherein at least one of the non-display areas includes a protective film peel-off area; A residual adhesive collection structure is disposed on one side of the substrate and located in the protective film peeling area.

2. The display panel as described in claim 1, characterized in that, The residual adhesive collection structure includes a collection tank.

3. The display panel as described in claim 2, characterized in that, The collection slots include multiple slots, which are arranged in an array within the protective film peeling area.

4. The display panel as described in claim 2 or 3, characterized in that, The collection tank includes a plurality of first collection tanks arranged along a first direction and a plurality of second collection tanks arranged along the first direction, wherein the first collection tanks and the second collection tanks are staggered along a second direction; wherein the first direction and the second direction intersect.

5. The display panel as described in claim 2 or 3, characterized in that, The cross-section of the collection groove parallel to the substrate includes circular, rectangular, trapezoidal, concave, and convex shapes; Preferably, when the cross-section of the collection groove parallel to the substrate is circular, the diameter of the circle is 10-20 μm.

6. The display panel as described in claim 3, characterized in that, The distance between two adjacent collection tanks is 5-10 μm.

7. The display panel as described in claim 5, characterized in that, The display panel also includes: A first metal layer is disposed on one side of the substrate, and the residual adhesive collection structure is formed on the first metal layer; Preferably, the first metal layer is a metal layer on the same layer as the bonding terminal; Preferably, the collection groove is formed on the first metal layer.

8. The display panel as described in claim 1, characterized in that, At least one of the non-display areas includes a bonding area, and the residue collection structure is used to collect protective film residue when the protective film is peeled off from the bonding area; Preferably, the protective film peeling area is disposed on the bonding area and located on both sides of the bonding area, and the protective film peeling area is removed from the substrate after the protective film is peeled off.

9. A display module, characterized in that, The display module includes a display panel as described in any one of claims 1-8, and A protective film is disposed on the side of the residual adhesive collection structure away from the substrate, and is at least located in the non-display area where the protective film peeling area is located.

10. A display device, characterized in that, The display device includes the display module as described in claim 9.

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