Display panel protection layer and film tearing method thereof

By dividing the protective layer of the display panel into three zone surfaces and using high-thermal laser to lift the second zone surface, the problem of edge-curling of the protective layer in the retained area during the tearing process is solved, and the protective effect after stabilization of the tearing film and laser cutting is achieved.

CN120405813AActive Publication Date: 2025-08-01CHONGQING LIANGJIANG LIANCHUANG ELECTRONICS CO LTD
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Patent Information

Application Number
CN202510316463.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2025-08-01
Estimated Expiration
2045-03-18

AI Technical Summary

Technical Problem

During the film tearing process of the display panel, the junction of the retention area and the tearing area is easily caused by the tearing action of the film, and the existing mechanical or artificial film tearing method may cause damage to the retention area or loss of function.

Method used

The protective layer of the display panel is divided into three independent zone surfaces: the first zone surface covers the retention area, the third zone surface covers the tearing film area, the second zone surface covers the partial retention area and the tearing film area, and a gap is set at the contact position between the second zone surface and the third zone surface, and the second zone surface is raised by using the action of high thermal laser, so that the second zone surface can be easily removed by manual or mechanical means.

Benefits of technology

Effectively protect the retention area from the film tearing action, avoid damage or dirt, simplify the film tearing process, reduce unexpected losses in the retention area, and ensure the stability of the protective layer during subsequent laser cutting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a display panel protection layer and a film tearing method thereof, the display panel protection layer comprises a first area surface, a second area surface and a third area surface which are divided into three mutually independent areas, and the first area surface covers a retention area of a display panel; the third area surface covers a film tearing area of the display panel; the second area surface covers part of the retention area and part of the film tearing area, the part, covering the retention area, of the second area surface is arranged above the first area surface, and the part, covering the film tearing area, of the second area surface is arranged below the third area surface; a gap is formed between the third area surface and the first area surface at least at the position where the second area surface exists, so that the first area surface and the third area surface do not mechanically interact at the position, and the second area surface is used for protecting the first area surface from being influenced by a tearing action and ensuring that the first area surface stably covers the retention area.
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Description

Technical Field

[0001] The present invention belongs to the technical field of display, and particularly relates to a display panel protective layer and a method for tearing off a film thereof. Background Art

[0002] For the production of display screen panels, generally, large sheets of panel groups are first produced, and then the panel groups are divided into individual panels by means of laser cutting or the like. The display panel protective layer is provided on the surface of the overall panel group before being cut. The so-called panel group refers to a large-format panel containing a plurality of single panels arranged in a certain pattern. In subsequent processes, the panel group needs to be cut to obtain single panels for subsequent manufacturing processes. Usually, the so-called certain pattern arrangement means that the panels are arranged in an array arrangement. The matrix array has rows and columns and is composed of single panels. There is a certain gap between the single panels, which is both to separate adjacent single panels and to facilitate subsequent cutting. A whole-surface protective layer is covered on the panel group. The protective layer can be a protective film, and the protective film needs to be torn off to carry out subsequent processes. Therefore, the film tearing process is an essential process.

[0003] Since the components or regions at different positions on the panel group are divided differently, when tearing off the film, some regions need to be retained and some regions need to be torn off. For distinction, the panel group is divided into a retention area and a film tearing area according to regions. The retention area is the area where the single panel is located, and the film tearing area is the other area of the panel group except the single panel, that is, the area between adjacent single panels. In the film tearing process, the protective layer corresponding to the retention area needs to be retained and cannot be torn off. Therefore, in the film tearing link, it is necessary to selectively tear off the protective layer in the specified area. However, there is a direct junction between the retention area and the film tearing area. If the film tearing area is directly acted on for film tearing, the position where the film tearing area intersects with the retention area is easily affected by the film tearing action and causes warping at the junction or the protective layer in the retention area is also lifted. Existing film tearing generally adopts mechanical or manual film tearing methods, but no matter what method is used, it is necessary to distinguish between the retention area and the film tearing area during film tearing. And for the convenience of only tearing off the protective layer in the film tearing area, the conventional solution needs to apply a certain supporting or blocking force to the retention area to reduce the influence of film tearing on the retention area, but the action of this force may cause accidental damage, dirt or functional loss of the retention area. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a display panel protective layer and a method for tearing off a film thereof to solve the technical problems in the above background art.

[0005] On the one hand, the invention provides the following technical solution. A display panel protective layer, the protective layer is divided into three mutually independent first surface areas, second surface areas and third surface areas, wherein:

[0006] The first area surface covers the remaining area of the display panel;

[0007] The third area surface covers the film - tearing area of the display panel;

[0008] The second area surface covers a part of the remaining area and a part of the film - tearing area. The part of the second area surface covering the remaining area is arranged above the first area surface, while the part covering the film - tearing area is arranged below the third area surface;

[0009] The third area surface and the first area surface have a gap at least at the position where the second area surface exists in common, so that there is no mechanical interaction between the first area surface and the third area surface at this position.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: When the third area surface is torn off manually or mechanically, the contact part between the third area surface and the second area surface is uncovered, and under the second adhesion effect, part of the position of the second area surface (specifically, the edge position of the second area surface under the third area surface) is also driven to be uncovered, so that the edge of the second area surface is separated from the surface of the film - tearing area, and the separated edge of the second area surface slightly warps on the surface of the film - tearing area; Subsequently, the panel group is sent to the laser cutting process. The high - heat laser acts on the middle area of the film - tearing area, that is, the area originally covered by the third area surface. The edge of the second area surface near the high - heat laser action area is heated and begins to curl, so that the edge of the second area surface further warps, and the contact part between the second area surface and the first area surface also has the fourth adhesion effect reduced due to the heat - induced curling of the second area surface, and even the edge of the second area surface in this part warps. After that, it only needs to tear off the second area surface easily through manual or mechanical means. It can be seen that by having a gap between the third area surface and the first area surface at least at the position where the second area surface exists in common, so that there is no mechanical interaction between the first area surface and the third area surface at this position, when the third area surface is peeled off, the second area surface is used to protect the first area surface from being affected by the tearing action, ensuring that the first area surface stably covers the remaining area and avoiding accidental damage, dirt or functional loss of the remaining area.

[0011] Furthermore, there is a first adhesion between the first area surface and the remaining area;

[0012] There is a second adhesion at the contact part between the third area surface and the second area surface;

[0013] There is a third adhesion at the contact part between the third area surface and the film - tearing area;

[0014] There is a fourth adhesion at the contact part between the second area surface and the first area surface;

[0015] There is a fifth adhesion at the contact part between the second area surface and the film - tearing area.

[0016] Further, the adhesion degrees of the first adhesion, the third adhesion, and the second adhesion decrease in sequence, and the adhesion degrees of the fourth adhesion and the fifth adhesion are both smaller than the adhesion degree of the second adhesion.

[0017] Further, the initial adhesions of the entire third area surface are consistent, and the initial adhesion is equal to the third adhesion;

[0018] Wherein, a reducing layer is coated on the part where the second area surface contacts the third area surface, so that the adhesion degree of the initial adhesion of this part of the second area surface coated with the reducing layer is changed to the adhesion degree of the second adhesion.

[0019] Further, the contact surface between the second area surface and the third area surface is divided into a first sub-region and a second sub-region. The adhesion degree on the second sub-region is greater than that on the first sub-region. The first sub-region is arranged close to the third area surface, and the second sub-region is arranged far from the third area surface.

[0020] Further, the heat shrinkability of the material of the second area surface is greater than the heat shrinkabilities of the materials of the first area surface and the third area surface.

[0021] Further, the display panel includes one such film tearing area and a plurality of such remaining areas arranged at intervals on the film tearing area.

[0022] On the other hand, the present invention also provides a method for tearing a protective layer of a display panel. The film tearing method includes the following steps:

[0023] Tear off the third area surface on the display panel, so that the contact part between the third area surface and the second area surface on the display panel is uncovered;

[0024] Meanwhile, under the action of the second adhesion, the third area surface drives a part of the position of the second area surface to be uncovered, so that the edge of the second area surface is separated from the surface of the film tearing area of the display panel and warps up;

[0025] Send the display panel into a laser cutting process. High-heat laser is applied to the middle area of the film tearing area, so that the edge of the second area surface near the high-heat laser is heated and starts to shrink, causing the warped edge of the second area surface to warp up further;

[0026] Due to the heat shrinkage of the second area surface, the contact part between the second area surface and the first area surface on the display panel causes the adhesion degree of the fourth adhesion of this contact part to decrease, and even the other edge of the second area surface corresponding to this contact part warps up;

[0027] Tear off the second area surface manually or mechanically based on the warped edge of the second area surface.

[0028] Further, when tearing off the third area surface, the acting force is mainly concentrated on the second sub-area of the contact surface between the second area surface and the third area surface, so that the adhesion between the second sub-area and the display panel area covered by it is reduced, while the second area surface is maintained at the corresponding position through the first sub-area of this contact surface.

[0029] Further, after laser cutting, a single-disk panel of the display panel is obtained;

[0030] Use the second area surface to wrap the remaining film-tearing area on the single-disk panel and break it off. Description of the Drawings

[0031] Figure 1 It is a schematic structural diagram of the display panel protective layer in the first embodiment of the present invention.

[0032] Figure 2 It is a schematic diagram of the result of the film-tearing process of the display panel protective layer in the first embodiment of the present invention.

[0033] Figure 3 It is a top view of the display panel in the first embodiment of the present invention.

[0034] Figure 4 It is a flowchart of the film-tearing method for the display panel protective layer in the second embodiment of the present invention.

[0035] Main element symbol description: 10, the first area surface; 20, the second area surface; 21, the reduction layer; 30, the third area surface; 31, the first sub-area; 32, the second sub-area; 40, the retention area; 50, the film-tearing area.

[0036] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific Embodiments

[0037] For ease of understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0040] Please refer to Figures 1 to 2 As shown, the figure shows the protective layer of the display panel in the first embodiment of the present invention. The protective layer is divided into three mutually independent first area surfaces 10, second area surfaces 20, and third area surfaces 30, where:

[0041] The first area surface 10 covers the remaining area 40 of the display panel;

[0042] The third area surface 30 covers the film-removing area 50 of the display panel;

[0043] The second area surface 20 covers a part of the remaining area 40 and a part of the film-removing area 50. The part of the second area surface 20 covering the remaining area 40 is arranged above the first area surface 10, while the part covering the film-removing area 50 is arranged below the third area surface 30;

[0044] The third area surface 30 and the first area surface 10 have a gap at least at the position where the second area surface 20 exists in common, so that there is no mechanical interaction between the first area surface 10 and the third area surface 30 at this position.

[0045] Among them, the part of the second area surface 20 covering the remaining area 40 accounts for one-third of the second area surface 20, and the part covering the film-removing area 50 accounts for two-thirds of the second area surface 20.

[0046] In this embodiment, the entire protective layer is designed to be able to cover the entire panel group (display panel). It is divided into three mutually independent area surfaces, which are respectively called the first area surface 10, the second area surface 20, and the third area surface 30. Mutually independent means that although each area surface is juxtaposed with each other, the junction is in a disconnected state. For example, the junction can be disconnected by cutting or other means. The first area surface 10 covers the remaining area 40, the third area surface 30 covers the film-removing area 50, and the second area surface 20 covers a part of the remaining area 40 and a part of the film-removing area 50. And the part of the second area surface 20 covering the remaining area 40 is arranged above the first area surface 10, and the part of the second area surface 20 covering the film-removing area 50 is arranged below the third area surface 30. The third area surface 30 and the first area surface 10 have a small gap at least at the position where the second area surface 20 exists in common. Having this small gap can make the first area surface 10 and the third area surface 30 have no mechanical interaction at this position.

[0047] During specific implementation, when the third area surface 30 is torn off manually or mechanically, the contact part between the third area surface 30 and the second area surface 20 is uncovered, and under the second adhesion effect, part of the second area surface 20 (specifically, the edge position of the second area surface 20 under the third area surface 30) is also driven to be uncovered, so that the edge of the second area surface 20 is separated from the surface of the film tearing area 50, and the separated edge of the second area surface 20 slightly warps on the surface of the film tearing area 50; Subsequently, the panel group is sent to the laser cutting process, and the high-temperature laser acts on the middle area of the film tearing area 50, that is, the area originally covered by the third area surface 30, and the edge of the second area surface 20 near the area affected by the high-temperature laser starts to curl due to heat, so that the edge of the second area surface 20 further warps, and the contact part between the second area surface 20 and the first area surface 10 also has a reduced fourth adhesion effect due to the heat-induced curling of the second area surface 20, and even the edge of the second area surface 20 in this part warps. After that, it only needs to be easily torn off the second area surface 20 manually or mechanically. It can be seen that there is a gap between the third area surface 30 and the first area surface 10 at least at the position where the second area surface 20 exists, so that there is no mechanical interaction between the first area surface 10 and the third area surface 30 at this position, so that when the third area surface 30 is peeled off, the second area surface 20 is used to protect the first area surface 10 from being affected by the tearing action, ensuring that the first area surface 10 stably covers the retention area 40 and avoiding accidental damage, soiling or functional loss of the retention area 40.

[0048] Further, there is a first adhesion between the first area surface 10 and the retention area 40;

[0049] There is a second adhesion at the contact part between the third area surface 30 and the second area surface 20;

[0050] There is a third adhesion at the contact part between the third area surface 30 and the film tearing area 50;

[0051] There is a fourth adhesion at the contact part between the second area surface 20 and the first area surface 10;

[0052] There is a fifth adhesion at the contact part between the second area surface 20 and the film tearing area 50.

[0053] The adhesion degrees of the first adhesion, the third adhesion and the second adhesion decrease in sequence, and the adhesion degrees of the fourth adhesion and the fifth adhesion are both less than the adhesion degree of the second adhesion.

[0054] In this embodiment, the contact part between the third area surface 30 and the second area surface 20 has a second adhesion effect, the first area surface 10 and the retention area 40 have a first adhesion effect, the contact part between the third area surface 30 and the film tearing area 50 (i.e., except the contact part with the second area surface 20) has a third adhesion effect, the contact part between the second area surface 20 and the first area surface 10 has a fourth adhesion effect, and the contact part between the second area surface 20 and the film tearing area 50 has a fifth adhesion effect. By pre-adjusting the adhesion method, the adhesion glue formula or concentration of each adhesion area in advance, adhesion effects with different formation methods and different acting forces can be formed in different areas. The first adhesion effect is relatively the largest, the third adhesion effect is the second largest, the second adhesion effect is the second largest, the fourth adhesion effect and the fifth adhesion effect may have different relative size relationships under different circumstances, but generally both the fourth and fifth adhesion effects are smaller than the second adhesion effect.

[0055] Furthermore, the initial adhesion of the whole third area surface 30 is consistent, and the initial adhesion is equal to the third adhesion;

[0056] Wherein, a reducing layer 21 is coated on the part of the second area surface 20 in contact with the third area surface 30, so that the adhesion degree of the initial adhesion of this part of the second area surface 20 coated with the reducing layer 21 is changed to the adhesion degree of the second adhesion.

[0057] In this embodiment, the initial adhesion effect of the whole third area surface 30 can be set to be consistent and all equal to the third adhesion effect, which helps the raw material for producing the third area surface 30. And for the part of the second area surface 20 in contact with the third area surface 30, a material capable of reducing the adhesion effect is coated on the surface of this part located on the second area surface 20, or this part of the second area surface 20 itself is made of a material capable of reducing the adhesion effect, so that the adhesion effect of this part is changed from the third adhesion effect to the second adhesion effect.

[0058] Furthermore, the heat shrinkability of the material of the second area surface 20 is greater than that of the materials of the first area surface 10 and the third area surface 30.

[0059] In this embodiment, the second surface area 20 is made of a material with relatively stronger heat shrinkability, that is, compared with the first surface area 10 and the third surface area 30, the second surface area 20 shrinks more significantly when heated. The first surface area 10 and the third surface area 30 are made of thermoplastic materials. When the second surface area 20 is heated, it is more likely to shrink compared with the first surface area 10 and the third surface area 30. In contrast, the plastic materials used for the first surface area 10 and the third surface area 30 are not easily shrunk. Thus, it is ensured that the first surface area 10 and the third surface area 30 do not undergo large deformations and remain in their corresponding covering positions or can be completely torn off. The second surface area 20, which is prone to heat shrinkage deformation, will change as follows: First, when the third surface area 30 is torn off manually or mechanically, the contact part between the third surface area 30 and the second surface area 20 is uncovered. Under the second adhesion effect, some positions of the second surface area 20 (specifically, the edge position of the second surface area 20 under the third surface area 30) are also driven to be uncovered, causing the edge of the second surface area 20 to separate from the surface of the film tearing area 50, and the separated edge of the second surface area 20 slightly warps on the surface of the film tearing area 50. Subsequently, the panel group is sent to the laser cutting process. The high-heat laser acts on the middle area of the film tearing area 50, that is, the area originally covered by the third surface area 30. The edge of the second surface area 20 near the high-heat laser action area starts to curl due to heat, further causing the edge of the second surface area 20 to warp. Moreover, the contact part between the second surface area 20 and the first surface area 10 also has a reduced fourth adhesion effect due to the heat curling of the second surface area 20, and even the edge of the second surface area 20 in this part warps. After that, it is only necessary to easily tear off the second surface area 20 manually or mechanically.

[0060] Further, the contact surface between the second surface area 20 and the third surface area 30 is divided into a first sub-region 31 and a second sub-region 32. The adhesion degree on the second sub-region 32 is greater than that on the first sub-region 31. The first sub-region 31 is close to the third surface area 30, and the second sub-region 32 is far from the third surface area 30.

[0061] In this embodiment, the contact surface between the second area surface 20 and the third area surface 30 is divided into two sub-regions, which are respectively called the first sub-region 31 and the second sub-region 32. There is a second adhesion effect between the second sub-region 32 and the third area surface 30. In terms of the positional relationship, the first sub-region 31 is closer to the third area surface 30, and the second sub-region 32 is relatively farther from the third area surface 30 and closer to the first area surface 10. Under this design, the third area surface 30 and the first area surface 10 can be closer, which is beneficial to the adhesion of the third area surface 30 at the corresponding position and is also beneficial to the protection of its corresponding interval. There is a second adhesion effect between the second sub-region 32 and the third area surface 30, while there is no adhesion effect between the first sub-region 31 and the third area surface 30 or there is an adhesion effect lower than the second adhesion effect. Thus, when the third area surface 30 is torn off, the acting force for tearing off the third area surface 30 acts on the second sub-region 32, reducing or causing detachment of the adhesion effect between the second sub-region 32 and the panel group area it covers. This detachment only occurs in the second sub-region 32. The second area surface 20 is kept in the corresponding position through the first sub-region 31, and when the second interval is torn off, the second sub-region 32 with reduced or detached adhesion effect can accelerate the curling and detachment speed of the second area surface 20, making it more convenient to tear off the second area surface 20.

[0062] Please refer to Figure 3 As shown, specifically, the display panel includes a film tearing area 50 and a plurality of retention areas 40 spaced in an array on the film tearing area 50.

[0063] Embodiment Two

[0064] Please refer to Figure 4 As shown, a method for tearing a protective film of a display panel in the second embodiment of the present invention includes the following steps: Step S01 to Step S05;

[0065] S01, Tear off the third area surface on the display panel so that the contact part between the third area surface and the second area surface on the display panel is uncovered;

[0066] S02, At the same time, the third area surface drives a part of the second area surface to be uncovered under the second adhesion effect, so that the edge of the second area surface is separated from and warped up from the surface of the film tearing area of the display panel;

[0067] S03, Send the display panel into the laser cutting process. High-heat laser acts on the middle area of the film tearing area, causing the edge of the second area surface near the high-heat laser to be heated and start to curl, so that the warped edge of the second area surface warps up further;

[0068] S04. Due to the heat-induced curling of the second surface area, the adhesion degree of the fourth adhesion at the contact part between the second surface area and the first surface area on the display panel decreases, and even the other edge of the second surface area corresponding to this contact part warps up.

[0069] S05. Tear off the second surface area manually or mechanically based on the warped edge of the second surface area.

[0070] Specifically, when tearing off the third surface area, the acting force is mainly concentrated on the second sub-region of the contact surface between the second surface area and the third surface area, reducing the adhesion effect between the second sub-region and the area of the display panel it covers, while the second surface area remains in its corresponding position through the first sub-region of this contact surface.

[0071] Specifically, after laser cutting, a single-panel display panel is obtained.

[0072] Use the second surface area to wrap the remaining film-tearing area on the single-panel display panel and break it off.

[0073] In summary, the display panel protective layer and its film-tearing method in the above embodiments of the present invention have the following

[0074] Beneficial effects:

[0075] 1. Separating the boundary between the traditional retention area and the film-tearing area is beneficial to reducing the impact of the film-tearing action on the protective layer of the retention area during film tearing.

[0076] 2. The part where the second surface area contacts the third surface area is arranged below the third surface area, which is beneficial to quickly tearing off the third surface area.

[0077] 3. The second surface area is used to protect the first surface area from the tearing action when tearing off the third surface area, ensuring that the first surface area stably covers the retention area.

[0078] 4. After tearing off the third surface area, the second surface area remains on the panel group, and the area covered by the second surface area does not include the laser cutting area. In the laser cutting process, the second surface area additionally serves as a protective layer to protect the first surface area from the heat and debris generated by laser cutting.

[0079] 5. During the laser cutting process, the second surface area forms self-curling using the cutting heat, reducing its adhesion with other interfaces, thus facilitating the easy tearing off of the second surface area without affecting the connection stability of other parts of the protective layer.

[0080] 6. After laser cutting, the remaining part of the film tearing area on the single-disc panel obtained by cutting needs to be broken off manually or mechanically (this part is called the waste edge). The personnel or mechanical structure can break off the waste edge by contacting the second area surface to wrap the waste edge. On the one hand, wrapping can be used to reduce the splashing of debris generated by breaking the edge. On the other hand, the second area surface can be torn off together through this action, thus saving action links and optimizing the production process.

[0081] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0082] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A display panel protective layer, characterized in that, The protective layer is divided into three independent first area surfaces, second area surfaces, and third area surfaces, where: The first area surface covers the retention area of the display panel; The third area surface covers the film tearing area of the display panel; The second area surface covers part of the retention area and part of the film tearing area. The part of the second area surface covering the retention area is arranged above the first area surface, while the part covering the film tearing area is arranged below the third area surface; The third area surface and the first area surface have a gap at least at the position where the second area surface exists in common, so that there is no mechanical interaction between the first area surface and the third area surface at this position.

2. The display panel protective layer according to claim 1, wherein: There is a first adhesion between the first area surface and the retention area; There is a second adhesion at the contact part between the third area surface and the second area surface; There is a third adhesion at the contact part between the third area surface and the film tearing area; There is a fourth adhesion at the contact part between the second area surface and the first area surface; There is a fifth adhesion at the contact part between the second area surface and the film tearing area.

3. The display panel protective layer according to claim 2, wherein The adhesion degrees of the first adhesion, the third adhesion, and the second adhesion decrease in sequence, and the adhesion degrees of the fourth adhesion and the fifth adhesion are both less than the adhesion degree of the second adhesion.

4. The display panel protective layer according to claim 2, wherein The initial adhesion of the entire third area surface is consistent, and the initial adhesion is equal to the third adhesion; Wherein, a reduction layer is coated on the part of the second area surface in contact with the third area surface, so that the adhesion degree of the initial adhesion of this part of the second area surface coated with the reduction layer is changed to the adhesion degree of the second adhesion.

5. The display panel protective layer according to claim 2, wherein The contact surface between the second area surface and the third area surface is divided into a first sub-region and a second sub-region. The adhesion degree on the second sub-region is greater than that on the first sub-region. The first sub-region is arranged close to the third area surface, and the second sub-region is arranged far from the third area surface.

6. The display panel protective layer according to claim 1, wherein The heat shrinkability of the material of the second area surface is greater than the heat shrinkability of the materials of the first area surface and the third area surface.

7. The display panel protective layer according to claim 1, wherein, The display panel includes a film tearing area and a plurality of retention areas arranged at intervals on the film tearing area.

8. A method for peeling a film of the display panel protective layer according to claims 1 to 7, characterized in that, The method includes the following steps: Tear off the third area surface on the display panel, so that the contact part between the third area surface and the second area surface on the display panel is uncovered; At the same time, the third area surface drives a part of the second area surface to be uncovered under the action of the second adhesion, so that the edge of the second area surface is separated from the surface of the film tearing area of the display panel and warps up; Send the display panel into a laser cutting process. High-temperature laser is applied to the middle area of the film tearing area, so that the edge of the second area surface near the high-temperature laser starts to shrink due to heat, and the warped edge of the second area surface warps up further; The contact part between the second area surface and the first area surface on the display panel is caused by the heat shrinkage of the second area surface, so that the adhesion degree of the fourth adhesion of this contact part is reduced, and even the other edge of the second area surface corresponding to this contact part warps up; Tear off the second area surface manually or mechanically based on the warped edge of the second area surface.

9. The method for peeling the protective film of the display panel according to claim 8, wherein When tearing off the third-zone surface, the acting force is mainly concentrated on the second sub-region of the contact surface between the second-zone surface and the third-zone surface, reducing the adhesion between the second sub-region and the display panel region it covers, while the second-zone surface remains in its corresponding position through the first sub-region of the contact surface.

10. The method for tearing the film of the display panel protection layer according to claim 8, characterized in that, After laser cutting, a single-panel display panel is obtained; Use the second-zone surface to wrap the remaining film-tearing region on the single-panel display panel and break it off.

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