Display panel, display panel prefabricated member and display device

Abstract

The invention provides a display panel, a display panel prefabricated member and a display device.The display panel comprises a substrate, a packaging layer and a polaroid, the substrate comprises a display area and a bonding area located on one side of the display area, and the polaroid comprises a polarizing layer and a first pressure-sensitive adhesive layer. According to the display panel, the pressure-sensitive adhesive layer, connected with the packaging layer, on the polaroid extends to the bonding area, so that the gap between the orthographic projection of the pressure-sensitive adhesive layer on the substrate and the bonding area is smaller than or equal to the gap between the orthographic projection of the packaging layer on the substrate and the bonding area; according to the polaroid, the packaging layer is completely wrapped by the end, close to the bonding area, of the pressure-sensitive adhesive layer, in the high-temperature and high-humidity experiment process, when the polarizing layer in the polaroid shrinks in the direction of the absorption axis, the whole packaging layer is driven by the pressure-sensitive adhesive layer to shrink together, the situation that the packaging layer cracks due to partial shrinkage and partial non-shrinkage is avoided, the packaging layer is effectively protected, and the service life of the polaroid is prolonged. And water vapor entering and black spot formation caused by packaging failure are avoided, and normal display of the display panel is ensured.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel, a display panel prefabricated component, and a display device. Background Art

[0002] Organic Light Emitting Display (OLED) and flat-panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

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

[0004] In view of this, the purpose of the present application is to provide a display panel that can avoid packaging failure and improve process performance.

[0005] Based on the above purpose, the present application provides a display panel, which includes:

[0006] A substrate, the substrate comprising a display area and a bonding area located on one side of the display area;

[0007] an encapsulation layer, the encapsulation layer being located on one side of the substrate and at least covering the display area;

[0008] a polarizer, the polarizer being located on a side of the encapsulation layer away from the substrate and at least covering the display area;

[0009] The polarizer includes a polarizing layer and a first pressure-sensitive adhesive layer, wherein the first pressure-sensitive adhesive layer is located on a side of the encapsulation layer away from the substrate, and the polarizing layer is located on a side of the first pressure-sensitive adhesive layer away from the substrate;

[0010] A first gap is provided between the orthographic projection of the encapsulation layer on the substrate and the bonding area, a second gap is provided between the orthographic projection of the first pressure-sensitive adhesive layer on the substrate and the bonding area, and a third gap is provided between the orthographic projection of the polarizing layer on the substrate and the bonding area;

[0011] The width of the second gap is smaller than or equal to the width of the first gap, and the width of the first gap is smaller than the width of the third gap.

[0012] In one embodiment, the first pressure-sensitive adhesive layer includes a first main body and a first extension, the first extension is connected to an end of the first main body close to the bonding area, and the first main body is located between the polarizing layer and the encapsulation layer;

[0013] Wherein, the orthographic projection of the first extension portion on the substrate is located at the first gap;

[0014] Preferably, the substrate comprises a glass substrate.

[0015] In one embodiment, the polarizer further includes a second protective layer, and the second protective layer is located between the first pressure-sensitive adhesive layer and the polarizing layer.

[0016] In one embodiment, the polarizer further includes a second pressure-sensitive adhesive layer and a compensation layer, wherein the compensation layer is located on a side of the first pressure-sensitive adhesive layer away from the substrate, and the second pressure-sensitive adhesive layer is located between the compensation layer and the second protective layer.

[0017] In one embodiment, the first pressure-sensitive adhesive layer further includes a third extension portion, and the third extension portion is connected to an end of the first pressure-sensitive adhesive layer away from the bonding area.

[0018] In one embodiment, one side of the third extension portion is connected to the polarizing layer.

[0019] In one embodiment, the orthographic projection of the third extension portion on the substrate is located within the orthographic projection of the polarizing layer on the substrate.

[0020] Based on the same inventive concept, the present application also discloses a display device, which includes the above-mentioned display panel.

[0021] Based on the same inventive concept, the present application also discloses a display panel prefabricated component, which includes:

[0022] A substrate, the substrate comprising a display area and a bonding area located on one side of the display area;

[0023] an encapsulation layer, the encapsulation layer being located on one side of the substrate and at least covering the display area;

[0024] a polarizer, the polarizer being located on a side of the encapsulation layer away from the substrate and at least covering the display area;

[0025] The polarizer comprises a polarizing layer, a first pressure-sensitive adhesive layer and a first protective layer, wherein the first pressure-sensitive adhesive layer is located on a side of the encapsulation layer away from the substrate, the polarizing layer is located on a side of the first pressure-sensitive adhesive layer away from the substrate, and the first protective layer is located on a side of the polarizing layer away from the substrate;

[0026] A first gap is provided between the orthographic projection of the encapsulation layer on the substrate and the bonding area, a second gap is provided between the orthographic projection of the first pressure-sensitive adhesive layer on the substrate and the bonding area, and a third gap is provided between the orthographic projection of the polarizing layer on the substrate and the bonding area;

[0027] The width of the second gap is smaller than or equal to the width of the first gap, and the width of the first gap is smaller than the width of the third gap.

[0028] In one embodiment, the first pressure-sensitive adhesive layer includes a first main body and a first extension, the first extension is connected to an end of the first main body close to the bonding area, and the first main body is located between the polarizing layer and the encapsulation layer;

[0029] Wherein, the orthographic projection of the first extension portion on the substrate is located at the first gap;

[0030] Preferably, the first protective layer includes a second main body portion and a second extension portion, the second extension portion is connected to an end of the second main body portion close to the bonding area, the second main body portion is located on a side of the polarizing layer away from the substrate, and the second extension portion is connected to the first extension portion;

[0031] Wherein, the orthographic projection of the second extension portion on the substrate is located at the third gap;

[0032] Preferably, both sides of the first extension portion are adhesive, and a side of the first extension portion away from the substrate is bonded to the second extension portion.

[0033] In one embodiment, the second extension portion includes a bonding portion and a connecting portion, the bonding portion is connected to the second main body portion through the connecting portion, and the bonding portion is bonded to the first extension portion;

[0034] Preferably, the orthographic projection of the first extension portion on the substrate is located within the orthographic projection of the bonding portion on the substrate;

[0035] Preferably, an area of ​​an orthographic projection of the adhesive portion on the substrate is larger than an area of ​​an orthographic projection of the first extending portion on the substrate.

[0036] In one embodiment, the orthographic projection of the polarizing layer on the substrate is located within the orthographic projection of the second body portion on the substrate;

[0037] Preferably, an orthographic projection of the polarizing layer on the substrate completely overlaps with an orthographic projection of the second body portion on the substrate.

[0038] In one embodiment, a fourth gap is provided between the orthographic projection of the second extension portion on the substrate and the bonding area, and a width of the fourth gap is less than or equal to a width of the second gap.

[0039] Compared with the prior art, the display panel provided by the present application extends the pressure-sensitive adhesive layer connected to the encapsulation layer on the polarizer toward the bonding area so that the gap between the orthographic projection of the pressure-sensitive adhesive layer on the substrate and the bonding area is less than or equal to the gap between the orthographic projection of the encapsulation layer on the substrate and the bonding area, that is, the end of the pressure-sensitive adhesive layer close to the bonding area completely covers the encapsulation layer. During the high temperature and high humidity experiment, when the polarizing layer in the polarizer shrinks along the absorption axis, the pressure-sensitive adhesive layer will drive the entire encapsulation layer to shrink together, thereby preventing the encapsulation layer from cracking due to partial shrinkage and partial non-contraction, effectively protecting the encapsulation layer, preventing water vapor from entering due to encapsulation failure and forming black spots, and ensuring normal display of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 is a schematic diagram of a related display panel;

[0042] Figure 2 is a schematic diagram of a layer structure of a related display panel;

[0043] Figure 3 A schematic diagram of a display panel provided in an embodiment of the present application;

[0044] Figure 4 A schematic diagram of the layer structure of a display panel provided in an embodiment of the present application;

[0045] Figure 5 for Figure 4 A schematic diagram of the structure enlargement at the center A;

[0046] Figure 6 A schematic diagram of a display panel provided in another embodiment of the present application;

[0047] Figure 7 A schematic diagram of the layer structure of a display panel provided in another embodiment of the present application;

[0048] Figure 8 for Figure 7 A schematic diagram of the structure enlarged at B in the middle;

[0049] Fig. 9 A schematic diagram of the layer structure of a display panel preform provided in another embodiment of the present application;

[0050] Fig.10 for Fig. 9 A schematic diagram of the structure enlarged at C in the middle;

[0051] Fig.11 A schematic diagram of the layer structure of a polarizer provided in another embodiment of the present application.

[0052] Marking Description:

[0053] 100. Display panel; 1. Substrate; 11. Display area; 12. Bonding area; 2. Encapsulation layer; 3. Polarizer; 31. Polarizing layer; 32. First pressure-sensitive adhesive layer; 321. First main body; 322. First extension; 323. Third extension; 33. First protective layer; 331. Second main body; 332. Second extension; 333. Adhesive part; 334. Connecting part; 34. Second protective layer; 35. Second pressure-sensitive adhesive layer; 36. Compensation layer; 200. Display panel preform. DETAILED DESCRIPTION

[0054] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0055] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0056] Reference Figure 1-2 As shown, a related display panel 100 includes a substrate 1, an encapsulation layer 2 and a polarizer 3. The encapsulation layer 2 is located on one side of the substrate 1 and covers the display area 11. The polarizer 3 is located on the side of the encapsulation layer 2 away from the substrate 1 and covers the display area 11. The substrate 1 includes the display area 11 and a bonding area 12 located on one side of the display area 11. The bonding area 12 is used for bonding with a flexible circuit board or a driver chip.

[0057] Since the polarizer 3 is not resistant to high temperature, Figure 2 The polarizer 3 is usually at a large distance from the bonding area 12. At the same time, in order to ensure the encapsulation effect, the encapsulation layer 2 will partially extend out of the display area 11, so that the boundary of the encapsulation layer 2 is located outside the display area 11. This causes the end of the polarizer 3 close to the bonding area 12 to be retracted relative to the encapsulation layer 2, that is, the boundary of the end of the polarizer 3 close to the bonding area 12 is located inside the encapsulation layer 2, a part of the encapsulation layer 2 is covered by the polarizer 3, and a part of the encapsulation layer 2 is not covered by the polarizer 3.

[0058] After long-term research, the inventors found that during the high temperature and high humidity experiment, the polarizing layer in the polarizer 3 will shrink along the absorption axis, causing the polarizer 3 to shrink as a whole. At the same time, the part of the encapsulation layer 2 covered by the polarizer 3 is also shrunk together, while the part of the encapsulation layer 2 not covered by the polarizer 3 does not shrink, causing the boundary between the covered part and the uncovered part of the encapsulation layer 2 to crack, thereby causing the encapsulation to fail, water vapor to enter, and black spots to form.

[0059] Based on this, the present application provides a display panel solution to solve the above technical problems, as detailed in the following embodiments.

[0060] Reference Figure 3-5 As shown, an embodiment of the present application discloses a display panel 100, which includes a substrate 1, an encapsulation layer 2 and a polarizer 3, the substrate 1 includes a display area 11 and a bonding area 12 located on one side of the display area 11, the encapsulation layer 2 is located on one side of the substrate 1 and at least covers the display area 11, and the polarizer 3 is located on a side of the encapsulation layer 2 away from the substrate 1 and at least covers the display area 11.

[0061] The polarizer 3 includes a polarizing layer 31 and a first pressure-sensitive adhesive layer 32, the first pressure-sensitive adhesive layer 32 is located on the side of the encapsulation layer 2 away from the substrate 1, the polarizing layer 31 is located on the side of the first pressure-sensitive adhesive layer 32 away from the substrate 1, a first gap is provided between the orthographic projection of the encapsulation layer 2 on the substrate 1 and the bonding area 12, a second gap is provided between the orthographic projection of the first pressure-sensitive adhesive layer 32 on the substrate 1 and the bonding area 12, and a third gap is provided between the orthographic projection of the polarizing layer 31 on the substrate 1 and the bonding area 12; wherein, the width of the second gap is less than or equal to the width of the first gap, and the width of the first gap is less than the width of the third gap.

[0062] Specifically, refer to Figure 5As shown, the width of the first gap is d1, the width of the second gap is d2, and the width of the third gap is d3, satisfying d3>d1≥d2. Among them, the width d3 of the third gap is relatively large, which can prevent the edge of the polarizing layer 31 from being burned during bonding, and even if the edge of the first pressure-sensitive adhesive layer 32 is burned, it will not affect the appearance of the polarizing layer 31 because it is at a certain distance from the edge of the polarizing layer 31.

[0063] The display panel 100 provided in the present application extends the first pressure-sensitive adhesive layer 32 on the polarizer 3 connected to the encapsulation layer 2 toward the bonding area 12, so that the gap between the orthographic projection of the first pressure-sensitive adhesive layer 32 on the substrate 1 and the bonding area 12 is less than or equal to the gap between the orthographic projection of the encapsulation layer 2 on the substrate 1 and the bonding area 12, that is, the end of the first pressure-sensitive adhesive layer 32 close to the bonding area 12 completely covers the encapsulation layer 2. During the high temperature and high humidity experiment, when the polarizing layer 31 in the polarizer 3 shrinks along the absorption axis, the first pressure-sensitive adhesive layer 32 drives the entire encapsulation layer 2 to shrink together, thereby preventing the encapsulation layer 2 from cracking due to partial shrinkage and partial non-contraction, effectively protecting the encapsulation layer 2, and preventing water vapor from entering due to encapsulation failure to form black spots, thereby ensuring the normal display of the display panel 100.

[0064] Optionally, the substrate 1 includes a substrate and a driving device layer; the driving device layer is arranged on the substrate, and the driving device layer includes a light sensing transistor and a pixel driving transistor for driving the light emitting unit to emit light.

[0065] Preferably, the substrate 1 includes a glass substrate. The glass substrate as a substrate has the advantages of high strength and rigidity, as well as good thermal stability. In the relevant display panel, part of the encapsulation layer 2 is not covered by the polarizer 3. During the high temperature and high humidity experiment, the polarizer 3 drives part of the encapsulation layer 2 to shrink, while the glass substrate does not shrink, which will cause the junction between the covered part and the uncovered part of the encapsulation layer 2 to crack, thereby causing encapsulation failure, water vapor entering, and forming black spots. In this embodiment, when the polarizing layer 31 in the polarizer 3 shrinks along the absorption axis, the first pressure-sensitive adhesive layer 32 will drive the entire encapsulation layer 2 to shrink together, avoiding the encapsulation layer 2 from cracking due to partial shrinkage and partial non-contraction, effectively protecting the encapsulation layer 2, and avoiding water vapor entry due to encapsulation failure. In other embodiments, the substrate can also be a flexible substrate, such as PI (polyimide).

[0066] Reference Figure 6-8 As shown, in one embodiment, the first pressure-sensitive adhesive layer 32 includes a first main body portion 321 and a first extension portion 322, the first extension portion 322 is connected to one end of the first main body portion 321 close to the bonding area 12, and the first main body portion 321 is located between the polarizing layer 31 and the encapsulation layer 2; wherein the orthographic projection of the first extension portion 322 on the substrate 1 is located in the first gap.

[0067] The display panel 100 in this embodiment is equivalent to further extending the first pressure-sensitive adhesive layer 32 to the bonding area 12 on the basis of the above embodiment to form a first extension portion 322. The first extension portion 322 can better wrap the end of the encapsulation layer 2 close to the bonding area 12. During the high temperature and high humidity experiment, when the polarizing layer 31 shrinks along the absorption axis, due to the existence of the first extension portion 322, the first pressure-sensitive adhesive layer 32 can better drive the entire encapsulation layer 2 to shrink together, better protect the encapsulation layer 2, and avoid encapsulation failure.

[0068] Reference Fig.11 As shown, in one embodiment, the polarizer 3 further includes a second protective layer 34, which is located between the first pressure-sensitive adhesive layer 32 and the polarizing layer 31, and the first protective layer 33 and the second protective layer 34 respectively support and protect the polarizing layer 31 from both sides of the polarizing layer 31.

[0069] Furthermore, the polarizer 3 further includes a second pressure-sensitive adhesive layer 35 and a compensation layer 36, wherein the compensation layer 36 is located on the side of the first pressure-sensitive adhesive layer 32 away from the substrate 1, and the second pressure-sensitive adhesive layer 35 is located between the compensation layer 36 and the second protective layer 34. The second pressure-sensitive adhesive layer 35 is used to bond the compensation layer 36 to the second protective layer 34, and the compensation layer 36 is used to compensate for the phase difference of the liquid crystal material inside the liquid crystal display.

[0070] Please continue to refer to Fig.11 As shown, in one embodiment, the first pressure-sensitive adhesive layer 32 also includes a third extension portion 323, and the third extension portion 323 is connected to an end of the first pressure-sensitive adhesive layer 32 away from the bonding area 12, which is equivalent to extending the first pressure-sensitive adhesive layer 32 in a direction away from the bonding area 12, so as to better wrap the encapsulation layer 2. During the high temperature and high humidity experiment, when the polarizing layer 31 shrinks along the absorption axis direction, the first pressure-sensitive adhesive layer 32 can better drive the entire encapsulation layer 2 to shrink.

[0071] Furthermore, one side of the third extension part 323 is connected to the polarizing layer 31. Specifically, the side of the third extension part 323 away from the substrate 1 is bonded to the polarizing layer 31, and the third extension part 323 is supported by the polarizing layer 31 to prevent the third extension part 323 from being bonded to the encapsulation layer 2.

[0072] Furthermore, the orthographic projection of the third extension portion 323 on the substrate 1 is located within the orthographic projection of the polarizing layer 31 on the substrate 1 , that is, the side of the third extension portion 323 away from the substrate 1 is completely covered by the polarizing layer 31 , ensuring the supporting effect of the polarizing layer 31 on the third extension portion 323 .

[0073] Optionally, the polarizing layer 31 is made of PVA (polyvinyl alcohol) or the like, and the first protective layer 33 , the second protective layer 34 and the compensation layer 36 are made of TAC (triacetyl cellulose) or the like.

[0074] Another embodiment of the present application discloses a display device, which includes the display panel 100 in the above embodiment. The display device can be on a smart device (such as a mobile phone, VR device, computer, TV, car display, etc.).

[0075] The display device provided in this embodiment has a display panel 100 in which a first pressure-sensitive adhesive layer 32 connected to the encapsulation layer 2 on the polarizer 3 is extended toward the bonding area 12 so that a gap between the orthographic projection of the first pressure-sensitive adhesive layer 32 on the substrate 1 and the bonding area 12 is less than or equal to a gap between the orthographic projection of the encapsulation layer 2 on the substrate 1 and the bonding area 12, that is, the end of the first pressure-sensitive adhesive layer 32 close to the bonding area 12 completely covers the encapsulation layer 2. During the high temperature and high humidity experiment, when the polarizing layer 31 in the polarizer 3 shrinks along the absorption axis, the first pressure-sensitive adhesive layer 32 drives the entire encapsulation layer 2 to shrink together, thereby preventing the encapsulation layer 2 from cracking due to partial shrinkage and partial non-contraction, effectively protecting the encapsulation layer 2, preventing water vapor from entering due to encapsulation failure and forming black spots, and ensuring normal display of the display panel 100.

[0076] Reference Figure 9-10 As shown, another embodiment of the present application discloses a display panel preform, which includes a substrate 1, an encapsulation layer 2 and a polarizer 3, the substrate 1 includes a display area 11 and a bonding area 12 located on one side of the display area 11, the encapsulation layer 2 is located on one side of the substrate 1 and at least covers the display area 11, and the polarizer 3 is located on a side of the encapsulation layer 2 away from the substrate 1 and at least covers the display area 11.

[0077] The polarizer 3 includes a polarizing layer 31, a first pressure-sensitive adhesive layer 32 and a first protective layer 33. The first pressure-sensitive adhesive layer 32 is located on the side of the encapsulation layer 2 away from the substrate 1, and the polarizing layer 31 is located on the side of the first pressure-sensitive adhesive layer 32 away from the substrate 1. A first gap is provided between the orthographic projection of the encapsulation layer 2 on the substrate 1 and the bonding area 12, a second gap is provided between the orthographic projection of the first pressure-sensitive adhesive layer 32 on the substrate 1 and the bonding area 12, and a third gap is provided between the orthographic projection of the polarizing layer 31 on the substrate 1 and the bonding area 12; wherein the width of the second gap is less than or equal to the width of the first gap, and the width of the first gap is less than the width of the third gap. The first protective layer 33 is used to provide protection before the polarizer 3 is attached to the cover plate, and the first protective layer 33 can be torn off when the polarizer 3 needs to be attached to the cover plate.

[0078] In one embodiment, the first protective layer 33 includes a second main body portion 331 and a second extension portion 332, the second extension portion 332 is connected to an end of the second main body portion 331 close to the bonding area 12, the second main body portion 331 is located on a side of the polarizing layer 31 away from the substrate 1, and the second extension portion 332 is connected to the first extension portion 322; wherein the orthographic projection of the second extension portion 332 on the substrate 1 is located in the third gap.

[0079] The display panel preform 200 in this embodiment is equivalent to extending the first protective layer 33 to the bonding area 12, and connecting the extended portion of the first protective layer 33 with the extended portion of the first pressure-sensitive adhesive layer 32, so as to cover the end of the polarizing layer 31 close to the bonding area 12, and further prevent the edge of the polarizing layer 31 from being burned during bonding. At the same time, since the two sides of the first extension part 322 lack support, connecting the second extension part 332 with the first extension part 322 can support the first extension part 322, increase the stiffness of the second extension part 332, and prevent the second extension part 332 from being bonded to the encapsulation layer 2 or the polarizer 3.

[0080] In one embodiment, both sides of the first extension portion 322 are adhesive, and the side of the first extension portion 322 away from the substrate 1 is bonded to the second extension portion 332. Specifically, the first pressure-sensitive adhesive layer 32 is a pressure-sensitive adhesive with adhesiveness on both sides, so both sides of the first extension portion 322 are also adhesive, and the first protective layer 33 can be directly bonded to the side of the first extension portion 322 away from the substrate 1, while the side of the first extension portion 322 close to the substrate 1 can be suspended. When the polarizing layer 31 shrinks along the absorption axis direction, the first extension portion 322 and the second extension portion 332 shrink together, thereby driving the encapsulation layer 2 to shrink as a whole.

[0081] Please continue to refer to Fig.10 As shown, in one embodiment, the second extension portion 332 includes an adhesive portion 333 and a connecting portion 334, wherein the adhesive portion 333 is connected to the second body portion 331 through the connecting portion 334, and the adhesive portion 333 is bonded to the first extension portion 322. The connecting portion 334 serves to connect the adhesive portion 333 with the second body portion 331, and the connecting portion 334 serves to support the adhesive portion 333, thereby supporting the first extension portion 322. When the polarizing layer 31 contracts along the absorption axis direction, the second body portion 331 drives the adhesive portion 333 to contract through the connecting portion 334, and at the same time, the first body portion 321 drives the first extension portion 322 to contract, and the first extension portion 322 and the adhesive portion 333 contract as a whole.

[0082] In one of the embodiments, the orthographic projection of the first extension portion 322 on the substrate 1 is located within the orthographic projection of the bonding portion 333 on the substrate 1, ensuring that the side of the first extension portion 322 away from the substrate 1 is bonded to the bonding portion 333, thereby ensuring the bonding area and bonding effect, facilitating better support for the first extension portion 322, and preventing the second extension portion 332 from bonding to the encapsulation layer 2 or the polarizer 3.

[0083] Furthermore, the area of ​​the orthographic projection of the bonding portion 333 on the substrate 1 is larger than the area of ​​the orthographic projection of the first extension portion 322 on the substrate 1, that is, the bonding portion 333 is not only bonded to the side of the first extension portion 322 away from the substrate 1, but also bonded to the side of the first main body portion 321 away from the substrate 1, which can further enhance the supporting effect on the first extension portion 322. At the same time, when the polarizing layer 31 shrinks along the absorption axis direction, it can better drive the encapsulation layer 2 to shrink together.

[0084] In one embodiment, the orthographic projection of the polarizing layer 31 on the substrate 1 is located within the orthographic projection of the second body portion 331 on the substrate 1, ensuring that the first protective layer 33 completely covers the polarizing layer 31, thereby ensuring the protective effect on the polarizing layer 31. Furthermore, the orthographic projection of the polarizing layer 31 on the substrate 1 completely overlaps with the orthographic projection of the second body portion 331 on the substrate 1, thereby achieving effective protection of the polarizing layer 31.

[0085] Please continue to refer to Fig.10 As shown, in one embodiment, a fourth gap is provided between the orthographic projection of the second extension portion 332 on the substrate 1 and the bonding area 12, and the width of the fourth gap is less than or equal to the width of the second gap. Specifically, the width of the fourth gap is d4, and d4≥d2 is satisfied. That is, the second extension portion 332 extends toward the bonding area 12 relative to the first extension portion 322 to further enhance the supporting effect of the first extension portion 322.

[0086] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0087] It should be noted that the above describes some embodiments of the present 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 an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0088] The embodiments of the present 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 the present application should be included in the scope of protection of the present application.

Claims

1. A display panel, characterized in that: include: A substrate, the substrate comprising a display area and a bonding area located on one side of the display area; an encapsulation layer, the encapsulation layer being located on one side of the substrate and at least covering the display area; a polarizer, the polarizer being located on a side of the encapsulation layer away from the substrate and at least covering the display area; The polarizer includes a polarizing layer and a first pressure-sensitive adhesive layer, wherein the first pressure-sensitive adhesive layer is located on a side of the encapsulation layer away from the substrate, and the polarizing layer is located on a side of the first pressure-sensitive adhesive layer away from the substrate; A first gap is provided between the orthographic projection of the encapsulation layer on the substrate and the bonding area, a second gap is provided between the orthographic projection of the first pressure-sensitive adhesive layer on the substrate and the bonding area, and a third gap is provided between the orthographic projection of the polarizing layer on the substrate and the bonding area; The width of the second gap is smaller than or equal to the width of the first gap, and the width of the first gap is smaller than the width of the third gap.

2. The display panel according to claim 1, wherein: The first pressure-sensitive adhesive layer includes a first main body and a first extension, the first extension is connected to an end of the first main body close to the bonding area, and the first main body is located between the polarizing layer and the encapsulation layer; Wherein, the orthographic projection of the first extension portion on the substrate is located at the first gap; Preferably, the substrate comprises a glass substrate.

3. The display panel according to claim 1, wherein: The polarizer further includes a second protective layer, and the second protective layer is located between the first pressure-sensitive adhesive layer and the polarizing layer; Preferably, the polarizer further comprises a second pressure-sensitive adhesive layer and a compensation layer, wherein the compensation layer is located on a side of the first pressure-sensitive adhesive layer away from the substrate, and the second pressure-sensitive adhesive layer is located between the compensation layer and the second protective layer.

4. The display panel according to claim 1, wherein: The first pressure-sensitive adhesive layer further comprises a third extension portion, and the third extension portion is connected to an end of the first pressure-sensitive adhesive layer away from the bonding area; Preferably, one side of the third extension portion is connected to the polarizing layer; Preferably, the orthographic projection of the third extending portion on the substrate is located within the orthographic projection of the polarizing layer on the substrate.

5. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 4.

6. A display panel prefabricated component, characterized in that: include: A substrate, the substrate comprising a display area and a bonding area located on one side of the display area; an encapsulation layer, the encapsulation layer being located on one side of the substrate and at least covering the display area; a polarizer, the polarizer being located on a side of the encapsulation layer away from the substrate and at least covering the display area; The polarizer comprises a polarizing layer, a first pressure-sensitive adhesive layer and a first protective layer, wherein the first pressure-sensitive adhesive layer is located on a side of the encapsulation layer away from the substrate, the polarizing layer is located on a side of the first pressure-sensitive adhesive layer away from the substrate, and the first protective layer is located on a side of the polarizing layer away from the substrate; A first gap is provided between the orthographic projection of the encapsulation layer on the substrate and the bonding area, a second gap is provided between the orthographic projection of the first pressure-sensitive adhesive layer on the substrate and the bonding area, and a third gap is provided between the orthographic projection of the polarizing layer on the substrate and the bonding area; The width of the second gap is smaller than or equal to the width of the first gap, and the width of the first gap is smaller than the width of the third gap.

7. The display panel preform according to claim 6, characterized in that: The first pressure-sensitive adhesive layer includes a first main body and a first extension, the first extension is connected to an end of the first main body close to the bonding area, and the first main body is located between the polarizing layer and the encapsulation layer; Wherein, the orthographic projection of the first extension portion on the substrate is located at the first gap; Preferably, the first protective layer includes a second main body portion and a second extension portion, the second extension portion is connected to an end of the second main body portion close to the bonding area, the second main body portion is located on a side of the polarizing layer away from the substrate, and the second extension portion is connected to the first extension portion; Wherein, the orthographic projection of the second extension portion on the substrate is located at the third gap; Preferably, both sides of the first extension portion are adhesive, and a side of the first extension portion away from the substrate is bonded to the second extension portion.

8. The display panel preform according to claim 7, characterized in that: The second extension portion includes a bonding portion and a connecting portion, the bonding portion is connected to the second main body portion through the connecting portion, and the bonding portion is bonded to the first extension portion; Preferably, the orthographic projection of the first extension portion on the substrate is located within the orthographic projection of the bonding portion on the substrate; Preferably, an area of ​​an orthographic projection of the bonding portion on the substrate is larger than an area of ​​an orthographic projection of the first extending portion on the substrate.

9. The display panel preform according to claim 7, characterized in that: The orthographic projection of the polarizing layer on the substrate is located within the orthographic projection of the second body portion on the substrate; Preferably, an orthographic projection of the polarizing layer on the substrate completely overlaps with an orthographic projection of the second body portion on the substrate.

10. The display panel preform according to claim 7, characterized in that: A fourth gap is provided between the orthographic projection of the second extension portion on the substrate and the bonding area, and a width of the fourth gap is less than or equal to a width of the second gap.

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