Display module and display device

Abstract

The application relates to a display module and a display device. The display module comprises a display panel and a cover plate. The display panel comprises a substrate and at least one packaging dam. The packaging dam is located in a frame area and surrounds the outer periphery of a display area. The cover plate is arranged on the light-emitting side of the display panel. The cover plate comprises a first film layer and a second film layer. The rigidity of the first film layer is greater than that of the second film layer. The orthographic projection of the first film layer along the thickness direction of the substrate has a first outer boundary. The orthographic projection of the display panel along the thickness direction of the substrate has a second outer boundary. In at least part of the frame area, the first outer boundary is located between the orthographic projection of the second outer boundary and the at least one packaging dam along the thickness direction of the substrate. The first outer boundary is located between the outer boundary of the orthographic projection of the second film layer along the thickness direction of the substrate and the orthographic projection of the at least one packaging dam along the thickness direction of the substrate. Therefore, the display module and the display device provided by the application can reduce the risk of damage to the first film layer of the cover plate.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) display technology is considered the most promising next-generation flat panel display technology. Compared to liquid crystal displays, OLED technology offers advantages such as low energy consumption, low cost, self-emissiveness, wide viewing angle, and fast response time. In related technologies, the display module includes a display panel and a glass cover, with the glass cover located on the light-emitting side of the display panel. However, the aforementioned glass cover is easily damaged. Summary of the Invention

[0003] Therefore, it is necessary to provide a display module and display device that can reduce the risk of damage to the first film layer.

[0004] In a first aspect, embodiments of this application provide a display module, which includes a display area and a bezel area. The display module includes a display panel and a cover plate. The display panel includes a substrate and at least one encapsulation dam located on one side of the substrate. The substrate is located in the display area and the bezel area, and the encapsulation dam is located in the bezel area and surrounds the outer periphery of the display area. The cover plate is disposed on the light-emitting side of the display panel and is located in the display area and the bezel area. The cover plate includes a first film layer and a second film layer. The stiffness of the first film layer is greater than that of the second film layer. The second film layer is located on the side of the first film layer opposite to the display panel. The orthographic projection of the first film layer along the thickness direction of the substrate has a first outer boundary, and the orthographic projection of the display panel along the thickness direction of the substrate has a second outer boundary. In at least a portion of the bezel area, the first outer boundary is located between the second outer boundary and the orthographic projection of the at least one encapsulation dam along the thickness direction of the substrate. The first outer boundary is located between the outer boundary of the orthographic projection of the second film layer along the thickness direction of the substrate and the orthographic projection of the at least one encapsulation dam along the thickness direction of the substrate.

[0005] In one embodiment, the display panel includes a crack-resistant barrier located on one side of the substrate and in the bezel area; the orthographic projection of the crack-resistant barrier along the thickness direction of the substrate is located on the side of at least one encapsulation barrier whose orthographic projection along the thickness direction of the substrate is opposite to the display area.

[0006] The orthographic projection of the anti-crack dam along the substrate thickness direction includes a third outer boundary on the side opposite to the display area; in at least a portion of the frame area, the first outer boundary is located between the third outer boundary and the orthographic projection of at least one encapsulation dam along the substrate thickness direction.

[0007] In one embodiment, the border area includes a first sub-border area along one side of a first direction, and the first sub-border area includes a binding area;

[0008] The border area includes a second sub-border area, a third sub-border area, and a fourth sub-border area. The second sub-border area and the first sub-border area are located on both sides of the display area along the first direction, and the third sub-border area and the fourth sub-border area are located on both sides of the display area along the second direction. The distance between the first outer boundary of the first sub-border area and the display area is the first distance, and the distance between the first outer boundary of at least one of the second, third, and fourth sub-border areas and the display area is the second distance. The first distance is greater than the second distance, and any two of the first direction, the second direction, and the thickness direction of the substrate intersect.

[0009] In one embodiment, the display module includes a first adhesive layer, which is adhered to the side of the first film layer facing the display panel;

[0010] The thickness of the first adhesive layer is greater than the thickness of the first film layer;

[0011] The cover plate includes a second adhesive layer, which is bonded to the side of the first film layer opposite to the display panel; the thickness of the first film layer is greater than the thickness of the second adhesive layer.

[0012] In one embodiment, the display module further includes a first support layer located on the backlight side of the display panel;

[0013] In at least a portion of the border region, the outer boundary of the orthographic projection of the first support layer along the substrate thickness direction is located between the second outer boundary and the orthographic projection of at least one encapsulation dam along the substrate thickness direction. The orthographic projection of at least one encapsulation dam along the substrate thickness direction is located within the orthographic projection of the first support layer along the substrate thickness direction, and the orthographic projection of at least one encapsulation dam along the substrate thickness direction is located within the orthographic projection of the second film layer along the substrate thickness direction.

[0014] The distance between the outer boundary and the second outer boundary of the first support layer, which is projected along the thickness direction of the substrate, is less than the distance between the first outer boundary and the second outer boundary.

[0015] In one embodiment, the display module includes a second support layer located on the backlight side of the display panel and between the display area and the bezel area;

[0016] The first outer boundary lies within the orthographic projection of the second support layer along the thickness direction of the substrate;

[0017] The second support layer has a seventh outer boundary in the orthogonal projection along the thickness direction of the substrate, and the seventh outer boundary is at least partially located on the side of the second outer boundary away from the display area.

[0018] In the border area located on at least one side of the display area, the distance between the first outer boundary and the second outer boundary is greater than the distance between the seventh outer boundary and the second outer boundary.

[0019] In one embodiment, the ratio between the thickness of the first film layer and the thickness of the second support layer ranges from [0.1, 0.6].

[0020] In one embodiment, the display module includes an opening area, the display area surrounds at least a portion of the outer periphery of the opening area, the display panel has a first through hole, the orthographic projection of the first through hole along the thickness direction of the substrate coincides with the opening area, and a first film layer covers the opening area.

[0021] The display module includes a second support layer located on the backlight side of the display panel, and the second support layer has a second through hole, which is at least partially located in the opening area.

[0022] The orthographic projection of the second through hole along the thickness direction of the substrate is located within the orthographic projection of the first through hole along the thickness direction of the substrate.

[0023] In one embodiment, the display panel includes a filter layer located between the display panel and the cover plate, with a first outer boundary surrounding the outer periphery of the filter layer as projected along the thickness direction of the substrate.

[0024] In one embodiment, the second film layer includes a first protective layer.

[0025] The first outer boundary lies within the orthographic projection of the first protective layer along the thickness direction of the substrate;

[0026] The display module includes a second light-shielding layer, which is at least partially located in the bezel area and surrounds the outer periphery of the display area.

[0027] The distance between the outer boundary of the first protective layer as an orthographic projection along the substrate thickness direction and the display area is greater than or equal to the distance between the outer boundary of the second light-shielding layer as an orthographic projection along the substrate thickness direction and the display area.

[0028] In one embodiment, the second film layer includes a coating layer disposed on the side of the first film layer opposite to the display panel and covering the sidewall of the first film layer;

[0029] The coating layer includes a buffer layer and a hardening layer. The hardening layer is located on the side of the buffer layer away from the display panel, and the elastic modulus of the hardening layer is greater than that of the buffer layer.

[0030] In one embodiment, the display module includes a second light-shielding layer, which is at least partially located in the border area and surrounds the outer periphery of the display area;

[0031] The first outer boundary lies within the orthographic projection of the second light-shielding layer along the thickness direction of the substrate;

[0032] The display module includes a second support layer located on the backlight side of the display panel; the outer boundary of the second support layer, projected along the thickness direction of the substrate, surrounds the outer periphery of the second light-shielding layer, projected along the thickness direction of the substrate.

[0033] In one embodiment, the border area includes a first sub-border area, a second sub-border area, a third sub-border area, and a fourth sub-border area. The first sub-border area includes a bonding area. The second sub-border area and the first sub-border area are respectively located on both sides of the display area along a first direction, and the third and fourth sub-border areas are located on both sides of the display area along a second direction. The orthographic projection of the second light-shielding layer along the thickness direction of the substrate has a second inner boundary facing the display area. The distance between the second inner boundary located in at least one of the second, third, and fourth sub-border areas and the display area is less than the distance between the second outer boundary and the display area. Any two of the first direction, the second direction, and the thickness direction of the substrate intersect.

[0034] In one embodiment, the display panel includes an inorganic encapsulation layer located on the side of at least one encapsulation dam facing away from the substrate, and the outer boundary of the inorganic encapsulation layer as an orthographic projection along the thickness direction of the substrate is located on the side of the at least one encapsulation dam as an orthographic projection along the thickness direction of the substrate facing away from the display area.

[0035] The border area includes a first sub-border area along one side of the first direction, and the first sub-border area includes a bonding area; the first outer boundary of the first sub-border area is located within the orthographic projection of the inorganic encapsulation layer along the thickness direction of the substrate; the first direction intersects with the thickness direction of the substrate.

[0036] In one embodiment, the display panel includes a gate driving circuit and signal traces, the gate driving circuit and signal traces being located in the bezel area, and the gate driving circuit being located on both sides of the display area along the second direction.

[0037] The orthographic projection of at least one of the gate drive circuit and the signal trace along the substrate thickness direction lies within the orthographic projection of the first film layer along the substrate thickness direction.

[0038] In one embodiment, the display module includes a second support layer located on the backlight side of the display panel;

[0039] The display module has a first bending area and non-bending areas located on opposite sides of the first bending area. The bending axis of the display module is located in the first bending area. The second support layer includes a first support area and a second support area located on both sides of the first support area in a first direction. The first support area is located in the first bending area, and the stiffness of the first support area is less than that of the second support area. The first direction intersects with the thickness direction of the substrate.

[0040] A first groove is provided on at least one side surface of the first film layer along the thickness direction of the display module. The first groove is located at least in the first bending area. The first groove has a first bottom wall and a first side wall connected to the first bottom wall.

[0041] The width of the first support area in the first direction is less than the width of the first bottom wall in the first direction.

[0042] In one embodiment, a portion of the first sidewall is located in the first bending region, another portion of the first sidewall is located in the non-bending region, and the sum of the widths of the first support region and the two second support regions in the first direction is greater than the width of the first bottom wall in the first direction.

[0043] In one embodiment, the first film layer has a tensile strength σ1 in the region where the first bottom wall is located, the width dimension of the first bottom wall in the first direction is K, the first bending region includes an arc apex region, the bending axis is located in the arc apex region, and the bending radius of the arc apex region is R0; K, R 0、 E, t, and σ1 satisfy:

[0044] 0.9σ1≥R0[1-K / (2πR0)]*Et / 2≥0.5σ1;

[0045] Where E is the elastic modulus of the first film layer in the region of the first bottom wall, and t is the thickness of the first film layer in the region of the first bottom wall.

[0046] In one embodiment, the stiffness of the first membrane layer in the region where the first bottom wall is located is greater than the stiffness of the first support region.

[0047] Secondly, embodiments of this application provide a display module, which includes a display area and a border area, and the display module includes:

[0048] The display panel includes a substrate and an encapsulation dam located on one side of the substrate. The substrate is located in the display area and the bezel area, and the encapsulation dam is located in the bezel area and surrounds the outer periphery of the display area.

[0049] The cover plate is located on the light-emitting side of the display panel and is situated between the display area and the bezel area;

[0050] The cover plate includes a first film layer, the first film layer having a first outer boundary when projected along the thickness direction of the substrate, and the first outer boundary being located on the side of at least one encapsulation dam away from the display area in at least a portion of the frame area.

[0051] Thirdly, embodiments of this application provide a display device, including a display module as described in the first or second aspect.

[0052] The display module and display device provided in this application embodiment have a first film layer that is recessed relative to the display panel and the second film layer. When the edge of the display module is impacted by an external force, the edge of the first film layer avoids the outermost stress concentration area of ​​the display module, so that stress will not concentrate in the edge area of ​​the first film layer. This can reduce the edge damage of the first film layer caused by direct impact from external forces, which is beneficial to extending the product life. In addition, the first film layer can cover and shield the area where each encapsulation dam is located from the light-emitting side, which can prevent the first film layer from being too recessed. When the edge of the display module is impacted by an external force, it can help prevent the encapsulation dam from cracking due to the impact, thereby helping to prevent moisture and dust from entering the encapsulation area. This can improve the encapsulation effect of the display module, ensure that the display panel can operate stably for a long time, and further help extend the product life. Attached Figure Description

[0053] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1 This is a top view of the display module provided in the embodiment of this application in a flattened state.

[0055] Figure 2 Another top view of the display module provided in the embodiment of this application in a flattened state.

[0056] Figure 3 Another top view of the display module provided in the embodiment of this application in a flattened state.

[0057] Figure 4 Another top view of the display module provided in the embodiment of this application in a flattened state.

[0058] Figure 5 This is a top view of the display module provided in the embodiment of this application in a folded state.

[0059] Figure 6 for Figure 1 A sectional view along the EE direction.

[0060] Figure 7 A cross-sectional view of the display module comprising the second, third, and fourth sub-border areas provided in an embodiment of this application.

[0061] Figure 8 A cross-sectional view of the display module of the first sub-border area provided in an embodiment of this application.

[0062] Figure 9 A cross-sectional view of the display panel of the second sub-border area provided in an embodiment of this application.

[0063] Figure 10 A cross-sectional view of the display panel for the third and fourth sub-border areas provided in the embodiments of this application.

[0064] Figure 11 A cross-sectional view of the display panel of the first sub-border area provided in an embodiment of this application.

[0065] Figure 12 This is a partial cross-sectional view of the display module provided in an embodiment of this application.

[0066] Figure 13 A partial top view of the second support layer provided in an embodiment of this application.

[0067] Figure 14 Another partial cross-sectional view of the display module provided in the embodiments of this application.

[0068] Figure 15 Another partial top view of the second support layer provided in an embodiment of this application.

[0069] Figure 16 A partial cross-sectional view of the display panel of the display area provided in an embodiment of this application.

[0070] Figure 17 Another cross-sectional view of the display module comprising the second sub-border area, the second sub-border area, and the third sub-border area provided in the embodiments of this application.

[0071] Explanation of reference numerals in the attached figures:

[0072] 100. Display module; 100a. Display area; 100b. Bezel area; 101b. First sub-bezel area; 101b1. Bonding area; 101b2. Second bending area; 102b. Second sub-bezel area; 103b. Third sub-bezel area; 104b. Fourth sub-bezel area; 100c. Opening area; 100d. Transition area; 100f. Non-bending area; 100f1. First non-bending area; 100f2. Second non-bending area; 100w1. First bending area; 100w2. Curved top area; 101. Cover plate; 111. First film layer; 112. Second film layer; 113. Coating layer; 1 131. Buffer layer; 1132. Hardening layer; 121. First protective layer; 122. Second protective layer; 123. Third protective layer; 131. First light-shielding layer; 132. Second light-shielding layer; 133. Third light-shielding layer; 141. First support layer; 142. Second support layer; 1421. First support area; 1422. Second support area; 143. Elevating element; 144. Filter layer; 1441. Color resist; 150. Display panel; 151. Substrate; 152. Light-emitting device; 1521. First electrode; 1522. Second electrode; 1523. Light-emitting functional part; 1541. First Encapsulation layer; 1542, Second encapsulation layer; 1543, Third encapsulation layer; 1545, Inorganic encapsulation layer; 155, Pixel limiting layer; 1551, Pixel opening; 161, First adhesive layer; 162, Second adhesive layer; 163, Third adhesive layer; 171, First through hole; 172, Second through hole; 173, Third through hole; 174, Fourth through hole; 175, Hole hole; 1761, First groove; 1771, First bottom wall; 1781, First side wall; 180, Encapsulation dam; 181, First encapsulation dam; 182, Second encapsulation dam; 183, Crack-resistant dam; 191, First Power supply line; 192, Gate drive circuit; 1921, First scan circuit; 1922, Second scan circuit; 1923, Light emission control circuit; 1931, First signal line; 194, Driver chip; 195, Connecting pad; WJ1, First outer boundary; WJ2, Second outer boundary; WJ3, Third outer boundary; WJ4, Fourth outer boundary; WJ5, Fifth outer boundary; WJ6, Sixth outer boundary; WJ7, Seventh outer boundary; WJ8, Eighth outer boundary; NJ1, First inner boundary; NJ2, Second inner boundary; Z, Bending axis; A, First direction; B, Second direction; C, Third direction. Detailed Implementation

[0073] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0074] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, this does not indicate any order, quantity, or importance, but is merely used to distinguish different components. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. Words such as “comprising” or “including” mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0075] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0076] In view of at least one of the above problems, embodiments of this application provide a display module and display device that can reduce the risk of damage to the first film layer.

[0077] The following will combine Figures 1-16 The display device provided in the embodiments of this application will be described.

[0078] See Figure 2 and Figure 7 This application provides a display module 100, which includes a display area 100a and a bezel area 100b, with the bezel area 100b located on the outer periphery of the display area 100a. The display module 100 includes a display panel 150 and a cover plate 101. The display panel 150 includes a substrate 151 and at least one encapsulation dam 180 located on one side of the substrate 151. The substrate 151 is located between the display area 100a and the bezel area 100b, and the encapsulation dam 180 is located in the bezel area 100b, surrounding the outer periphery of the display area 100a. The encapsulation dam 180 can be used to prevent organic encapsulation layers (…) Figure 16The second encapsulation layer 1542 overflows outward, which helps to improve the encapsulation effect of the organic encapsulation layer. A cover plate 101 is disposed on the light-emitting side of the display panel 150, and the cover plate 101 is located between the display area 100a and the bezel area 100b. The cover plate 101 is used to protect the display panel 150 to prevent users from scratching the display panel 150 when using it. The display panel 150 may include a light-emitting side and a backlight side disposed opposite to each other along the thickness direction (i.e., direction C). The light-emitting side is the side used to display the image, and the backlight side is the other side disposed opposite to the light-emitting side along the thickness direction of the display panel. For example, the light-emitting side can be... Figure 7 The upper side of the display panel 150, the backlight side can be Figure 7 The lower side of the display panel 150 in the middle.

[0079] See Figure 2 and Figure 7 The cover plate 101 includes a first film layer 111. The first film layer 111 has a first outer boundary WJ1 when projected orthogonally along the thickness direction of the substrate 151, and the display panel 150 has a second outer boundary WJ2 when projected orthogonally along the thickness direction of the substrate 151. In at least a portion of the frame area 100b, the first outer boundary WJ1 is located on the side of at least one encapsulation dam 180 facing away from the display area 100a. This allows the first film layer 111 to cover and shield the area where each encapsulation dam 180 is located from the light-emitting side, preventing excessive inward shrinkage of the first film layer 111. When the edge of the display module 100 is subjected to external impact, this helps prevent the encapsulation dam 180 from cracking, thereby preventing moisture and dust from entering the encapsulation area, improving the encapsulation effect of the display module 100, ensuring the long-term stable operation of the display panel 150, and further extending the product lifespan.

[0080] In some embodiments, within at least a portion of the frame region 100b, the first outer boundary WJ1 lies between the second outer boundary WJ2 and the orthographic projection of at least one encapsulation dam 180 along the thickness direction of the substrate 151. This causes the first film layer 111 to be recessed relative to the display panel 150. When the edge of the display module 100 is subjected to external impact (e.g., a knock), the edge of the first film layer 111 avoids the outermost stress concentration area of ​​the display module 100, preventing stress concentration at the edge of the first film layer 111. This reduces edge damage to the first film layer 111 caused by direct impact, thus extending product lifespan. Furthermore, by allowing the first film layer 111 to cover and shield the area where each encapsulation dam 180 is located from the light-emitting side, excessive recessing of the first film layer 111 can be avoided. When the edge of the display module 100 is subjected to external impact, it helps to prevent the encapsulation dam 180 from cracking due to the impact, thereby preventing moisture and dust from entering the encapsulation area. This improves the encapsulation effect of the display module 100, ensures the long-term stable operation of the display panel 150, and further extends the product life. The second outer boundary WJ2 is the orthographic projection of the cutting line of the display panel 150 along the thickness direction of the substrate 151.

[0081] For example, the material of the first film layer 111 includes glass, such as ultra-thin glass, which helps to make the display module 100 thinner and lighter. Glass is a brittle material and is more prone to cracking and damage under external impact than other materials in the display module 100.

[0082] See Figure 10 and Figure 17In some embodiments, the cover plate 101 includes a second film layer 112, which is located on the side of the first film layer 111 facing away from the display panel 150. The stiffness of the first film layer 111 is greater than that of the second film layer 112, resulting in greater stiffness of the first film layer 111, which is beneficial to improving the impact resistance of the cover plate 101. The first outer boundary WJ1 is located between the outer boundary of the second film layer 112 projected along the thickness direction of the substrate 151 and the projected boundary of at least one encapsulation dam 180 along the thickness direction of the substrate 151. In this way, the first film layer 111 is recessed relative to the second film layer 112. When the edge of the display module 100 is impacted by external force, the edge of the first film layer 111 can better avoid the outermost stress concentration area of ​​the display module 100, so that stress will not concentrate on the edge area of ​​the first film layer 111. This can reduce the edge damage of the first film layer 111 caused by direct impact from external force, which is beneficial to extending the product life. Wherein, the outer boundary of the orthographic projection of the second film layer 112 along the thickness direction of the substrate 151 is located on the outer periphery of the orthographic projection of at least one encapsulation dam 180 along the thickness direction of the substrate 151. That is, the orthographic projection of at least one encapsulation dam 180 along the thickness direction of the substrate 151 is located within the orthographic projection of the second film layer 112 along the thickness direction of the substrate 151.

[0083] Furthermore, the less stiff second film layer 112 is located above the more stiff first film layer 111. This indicates that when the module folds inward, the inner second film layer 112 is subjected to compressive stress, while the outer first film layer 111 is subjected to tensile stress. The stiffness of the first film layer 111 is greater than that of the second film layer 112. This means that under the same deformation, the outer first film layer 111 will generate greater stress due to the tensile stress. The inward contraction of the first film layer 111 relative to the second film layer 112 prevents the first film layer 111 from being located at the edge of the first bending region 100w1 where stress is more concentrated. This effectively disperses and reduces the peak stress borne by the first film layer 111, preventing the first film layer 111 from cracking due to excessive stress.

[0084] See Figure 2 In some embodiments, the display panel 150 includes a crack-resistant barrier 183, which is located on one side of the substrate 151 and in the frame area 100b. The orthographic projection of the crack-resistant barrier 183 along the thickness direction of the substrate 151 is located on the side of at least one encapsulation barrier 180 opposite to the display area 100a along the thickness direction of the substrate 151. That is, the crack-resistant barrier 183 is located outside the encapsulation barrier 180. Multiple display panels 150 can be formed by cutting the panel motherboard. If microcracks are generated in the display panel 150 during the cutting process of the display panel 150 or when the edge of the display module 100 is impacted by external force, the crack-resistant barrier 183, as a raised barrier structure, can physically block the edge cracks of the display panel 150 from extending inward and prevent the cracks from crossing the crack-resistant barrier 183 and intruding into the display area 100a.

[0085] See Figure 2 In some embodiments, the orthographic projection of the anti-crack dam 183 along the thickness direction of the substrate 151 includes a third outer boundary WJ3 on the side opposite to the display area 100a. In at least a portion of the frame area 100b, the first outer boundary WJ1 is located between the third outer boundary WJ3 and the display area 100a. This causes the first film layer 111 to be recessed relative to the anti-crack dam 183. When the edge of the display module 100 is impacted by an external force, the force can first act on the outer anti-crack dam 183, be buffered by the anti-crack dam 183, and then be transmitted inward. This helps reduce edge damage to the first film layer 111 caused by direct impact from external forces, thereby extending product lifespan.

[0086] In some embodiments, within at least a portion of the frame region 100b, the first outer boundary WJ1 is located between the third outer boundary WJ3 and the orthographic projection of at least one encapsulation dam 180 along the thickness direction of the substrate 151. This causes the first film layer 111 to be recessed relative to the crack-resistant dam 183. When the edge of the display module 100 is impacted by an external force, the force is first applied to the outer crack-resistant dam 183, buffered by the dam, and then transmitted inward. This helps reduce edge damage to the first film layer 111 caused by direct impact, thereby extending product lifespan. Furthermore, the first film layer 111 can cover and shield the area where the encapsulation dam 180 is located from the light-emitting side. When the edge of the display module 100 is impacted by an external force, it helps prevent the encapsulation dam 180 from cracking, thereby improving the encapsulation effect of the display module 100 and further extending product lifespan.

[0087] See Figure 2 In some embodiments, the first outer boundary WJ1 is located between the orthographic projection of the anti-crack dam 183 along the thickness direction of the substrate 151 and the orthographic projection of at least one encapsulation dam 180 along the thickness direction of the substrate 151. This positions the anti-crack dam 183 outside the first film layer 111. When the edge of the display module 100 is impacted by an external force, the force is first applied to the outer anti-crack dam 183, buffered by the dam, and then transmitted inward. This helps reduce edge damage to the first film layer 111 caused by direct impact, thus extending product lifespan. Furthermore, the first film layer 111 is recessed significantly relative to the anti-crack dam 183. When the edge of the display module 100 is impacted by an external force, the edge of the first film layer 111 is farther from the outermost stress concentration area of ​​the display module 100, resulting in better protection against damage to the edge of the first film layer 111.

[0088] See Figure 2In some embodiments, there are multiple encapsulation dams 180, including a first encapsulation dam 181 and a second encapsulation dam 182, with the second encapsulation dam 182 located on the side of the first encapsulation dam 181 facing away from the display area 100a. Thus, by providing multiple encapsulation dams 180, it is beneficial to improve the blocking effect of the encapsulation dams 180 on the overflow of the organic encapsulation layer.

[0089] See Figure 2 In some embodiments, in the frame area 100b located on at least one side of the display area 100a, the first outer boundary WJ1 is located between the orthographic projection of the anti-crack dam 183 along the thickness direction of the substrate 151 and the orthographic projection of the second encapsulation dam 182 along the thickness direction of the substrate 151. This allows the first film layer 111 to cover and shield the area containing the first encapsulation dam 181 and the second encapsulation dam 182 from the light-emitting side. When the edge of the display module 100 is subjected to external impact, this helps to prevent the first encapsulation dam 181 and the second encapsulation dam 182 from cracking due to the impact, thereby improving the encapsulation effect of the display module 100 and further extending the product lifespan.

[0090] In other embodiments, the first outer boundary WJ1 overlaps with the orthographic projection of the crack-resistant dam 183 along the thickness direction of the substrate 151. This results in the first film layer 111 being less recessed relative to the crack-resistant dam 183, which is beneficial for achieving a narrow bezel design. For example, in at least one of the second sub-bezel region 102b, the third sub-bezel region 103b, and the fourth sub-bezel region 104b, the first outer boundary WJ1 is located in the orthographic projection of the crack-resistant dam 183 along the thickness direction of the substrate 151.

[0091] See Figure 1 For example, the display panel 150 may have a first direction A, a second direction B, and a third direction C, where the first direction A, second direction B, and third direction C are all different. The first direction A and second direction B can be any two different directions parallel to the display panel 150, and the third direction C can be any direction intersecting a plane parallel to the display panel 150. For example, the first direction A, second direction B, and third direction C can be perpendicular to each other. For example, the first direction A can be the length direction of the display panel 150, the second direction B can be the width direction of the display panel 150, and the third direction C can be the thickness direction of the display panel 150. The length, width, and thickness in this embodiment are merely for descriptive convenience and do not imply any limitation on the dimensions. For example, the width can be greater than, equal to, or less than the length. In this embodiment, the first direction A can be understood as corresponding to a straight line direction when the product is unfolded and a curved direction direction when the product is folded.

[0092] See Figure 1In some embodiments, the border area 100b includes a first sub-border area 101b located on one side of the display area 100a along the first direction A, and the first sub-border area 101b includes a binding area 101b1. The first sub-border area 101b can be... Figure 1 The bottom border area in the middle.

[0093] See Figure 1 In some embodiments, the border area 100b includes a second sub-border area 102b, a third sub-border area 103b, and a fourth sub-border area 104b. The second sub-border area 102b and the first sub-border area 101b are respectively located on both sides of the display area 100a along the first direction A, and the third sub-border area 103b and the fourth sub-border area 104b are respectively located on both sides of the display area 100a along the second direction B. The second sub-border area 102b can be... Figure 1 The top border area. The third sub-border area 103b and the fourth sub-border area 104b can be respectively... Figure 1 The left and right border areas in the middle.

[0094] See Figure 2 In some embodiments, the distance between the first outer boundary WJ1 located in the first sub-border area 101b and the display area 100a is greater than the distance between the remaining part of the first outer boundary WJ1 and the display area 100a. This makes the distance between the remaining part of the first outer boundary WJ1 and the display area 100a smaller, which is beneficial to reducing the width of the border area 100b where the remaining part of the first outer boundary WJ1 is located, and is beneficial to achieving a narrow border design.

[0095] See Figure 2 In some embodiments, the distance between the first outer boundary WJ1 of the first sub-border area 101b and the display area 100a is a first distance, and the distance between the first outer boundary WJ1 of at least one of the second sub-border areas 102b, the third sub-border area 103b, and the fourth sub-border area 104b and the display area 100a is a second distance. The first distance is greater than the second distance. This makes the distance between the first outer boundary WJ1 of at least one of the second sub-border areas 102b, the third sub-border area 103b, and the fourth sub-border area 104b and the display area 100a smaller, which is beneficial to reducing the width of at least one of the second sub-border areas 102b, the third sub-border area 103b, and the fourth sub-border area 104b, and is beneficial to achieving a narrow bezel design.

[0096] See Figure 2In some embodiments, the distance between the first outer boundary WJ1 of at least two of the second sub-border area 102b, the third sub-border area 103b and the fourth sub-border area 104b and the display area 100a is equal. This makes the width of at least two of the second sub-border area 102b, the third sub-border area 103b and the fourth sub-border area 104b more consistent, which is beneficial to improving the aesthetics of the display module 100.

[0097] See Figure 2 In some embodiments, the orthographic projection of at least one encapsulation dam 180 along the thickness direction of the substrate 151 includes a fourth outer boundary WJ4 on the side opposite to the display area 100a. The distance between the first outer boundary WJ1 and the fourth outer boundary WJ4 of the second sub-bezel area 102b is greater than the distance between the first outer boundary WJ1 and the fourth outer boundary WJ4 of at least one of the third sub-bezel area 103b and the fourth sub-bezel area 104b. Thus, the distance between the first outer boundary WJ1 and the fourth outer boundary WJ4 of the second sub-bezel area 102b is... The larger distance between the first film layer 111 in the second sub-border area 102b and the encapsulation dam 180 results in a larger outward expansion, which can better prevent the encapsulation dam 180 in the second sub-border area 102b from cracking under external impact. In addition, the smaller distance between the first outer boundary WJ1 and the fourth outer boundary WJ4 in at least one of the third sub-border area 103b and the fourth sub-border area 104b is beneficial to reducing the width of at least one of the third sub-border area 103b and the fourth sub-border area 104b, which is conducive to realizing a narrow bezel design.

[0098] See Figure 7 In some embodiments, the display module 100 includes a first adhesive layer 161, which is bonded to the side of the cover plate 101 facing the display panel 150. For example, the first adhesive layer 161 is bonded to the side of the first film layer 111 facing the display panel 150.

[0099] In some embodiments, the thickness of the first adhesive layer 161 is greater than the thickness of the first film layer 111. This results in a smaller thickness of the first film layer 111, which is beneficial for improving the bending performance of the first film layer 111. In addition, since the first film layer 111 is recessed relative to the display panel 150, setting the thickness of the first adhesive layer 161 to be larger is beneficial for the first adhesive layer 161 to fill the recess.

[0100] In some embodiments, the difference between the thickness of the first adhesive layer 161 and the thickness of the first film layer 111 is less than or equal to 20 μm. This makes the difference between the thickness of the first adhesive layer 161 and the thickness of the first film layer 111 small, which can avoid the first adhesive layer 161 being too thick and is beneficial to the thinning of the display module 100.

[0101] For example, the difference between the thickness of the first adhesive layer 161 and the thickness of the first film layer 111 is any value of 2μm, 5μm, 8μm, 10μm, 15μm, 20μm or less than 20μm.

[0102] In some embodiments, the cover plate 101 includes a second adhesive layer 162, which is bonded to the side of the first film layer 111 opposite to the display panel 150.

[0103] In some embodiments, the thickness of the first film layer 111 is greater than the thickness of the second adhesive layer 162. This results in a smaller thickness of the second adhesive layer 162, which is beneficial for making the display module 100 thinner and lighter, and also helps to improve the creep recovery performance of the display module 100. The greater the thickness of the adhesive layer, the worse its creep recovery performance. By reducing the thickness of the adhesive layer, the creep recovery performance of the display module 100 can be improved.

[0104] For example, the ratio of the thickness of the first film layer 111 to the thickness of the second adhesive layer 162 is greater than or equal to 1.2. This makes the thickness of the second adhesive layer 162 smaller, which is beneficial to the thinning of the display module 100 and also to improving the creep recovery performance of the display module 100.

[0105] For example, the ratio of the thickness of the first film layer 111 to the thickness of the second adhesive layer 162 is 1.2, 1.4, 1.6, 1.8, 2 or any value greater than 1.2.

[0106] In some embodiments, the thickness of the first adhesive layer 161 is greater than the thickness of the second adhesive layer 162. For example, the ratio of the thickness of the first adhesive layer 161 to the thickness of the second adhesive layer 162 is greater than or equal to 2. This makes the thickness of the second adhesive layer 162 smaller, which is beneficial for the thinning of the display module 100 and also helps to improve the creep recovery performance of the display module 100. In addition, since the first film layer 111 is recessed relative to the display panel 150 to form a depression, setting the thickness of the first adhesive layer 161 to be larger helps the first adhesive layer 161 to fill the depression.

[0107] For example, the ratio of the thickness of the first adhesive layer 161 to the thickness of the second adhesive layer 162 is 2, 2.2, 2.4, 2.6, 2.8 or any value greater than 2.

[0108] In some embodiments, the thickness of the first film layer 111 is greater than or equal to 33 μm. This avoids the first film layer 111 being too thin and helps to improve the impact resistance of the first film layer 111.

[0109] For example, the thickness of the first film layer 111 is 33 μm, 36 μm, 38 μm, 40 μm, 42 μm or any value greater than 33 μm.

[0110] See Figure 7 In some embodiments, in the frame area 100b located on at least one side of the display area 100a, the outer boundary of the first adhesive layer 161 along the thickness direction of the substrate 151 is located on the outer periphery of the first film layer 111 along the thickness direction of the substrate 151. This is equivalent to the outer boundary of the first adhesive layer 161 along the thickness direction of the substrate 151 located on the outer periphery of the first outer boundary WJ1 in the frame area 100b located on at least one side of the display area 100a. This causes at least a portion of the first film layer 111 to be recessed relative to the first adhesive layer 161. When the edge of the display module 100 is impacted by an external force, the external force can first act on the outer first adhesive layer 161, be buffered by the first adhesive layer 161, and then be transmitted inward. This helps to reduce the edge damage of the first film layer 111 caused by direct impact from external forces, thereby helping to extend the product life.

[0111] For example, in at least one of the second sub-border area 102b, the third sub-border area 103b and the fourth sub-border area 104b, the outer boundary of the first adhesive layer 161 along the thickness direction of the substrate 151 is located on the outer periphery of the first film layer 111 along the thickness direction of the substrate 151.

[0112] See Figure 7 In some embodiments, the outer boundary of the second adhesive layer 162, projected along the thickness direction of the substrate 151, is located at the outer periphery of the first film layer 111, projected along the thickness direction of the substrate 151. This causes the first film layer 111 to be recessed relative to the second adhesive layer 162. When the edge of the display module 100 is impacted by an external force, the external force can first act on the outer second adhesive layer 162, be buffered by the second adhesive layer 162, and then be transmitted inward. This helps to reduce the edge damage of the first film layer 111 caused by direct impact from external forces, thereby helping to extend the product life.

[0113] In some embodiments, in the border area 100b located on at least one side of the display area 100a, the distance between the outer boundary of the second adhesive layer 162 projected along the thickness direction of the substrate 151 and the first outer boundary WJ1 is a third distance, and the distance between the outer boundary of the first adhesive layer 161 projected along the thickness direction of the substrate 151 and the first outer boundary WJ1 is a fourth distance, wherein the third distance is greater than or equal to the fourth distance. Thus, in the border area 100b located on at least one side of the display area 100a, the outward expansion of the second adhesive layer 162 relative to the first film layer 111 is greater than or equal to the outward expansion of the first adhesive layer 161 relative to the first film layer 111, making the outward expansion of the first adhesive layer 161 relative to the first film layer 111 smaller. This helps prevent the first adhesive layer 161 from overflowing to the sidewall of the display panel 150 and helps prevent moisture intrusion into the display panel 150, thereby extending the service life of the display panel 150. The sidewall of the display panel 150 is a cut surface. If the first adhesive layer 161 overflows and covers the cut surface, the first adhesive layer 161 will form a hydrophilic moisture-conducting channel, causing moisture to accumulate on the cut surface and invade the display panel 150, thereby affecting the service life of the display panel 150.

[0114] See Figure 12 and Figure 17 In some embodiments, the second film layer 112 includes a coating layer 113, which is disposed on the side of the first film layer 111 facing away from the display panel 150. The coating layer 113 can cover the sidewalls of the first film layer 111, resulting in a wider coverage area of ​​the first film layer 111. The coating layer 113 includes a buffer layer 1131 and a hardening layer 1132. The hardening layer 1132 is located on the side of the buffer layer 1131 facing away from the display panel 150. The elastic modulus of the hardening layer 1132 is greater than that of the buffer layer 1131. The buffer layer 1131 prevents the hardening layer 1132 from contacting the first film layer 111. Thus, by having a higher elastic modulus than the buffer layer 1131, the hardening layer 1132 has a greater elastic modulus, which is beneficial for improving the impact resistance of the cover plate 101.

[0115] See Figure 7 and Figure 8 In other embodiments, the second film layer 112 includes a first protective layer 121, which is located on the side of the first film layer 111 facing away from the display panel 150, and can protect the first film layer 111. A second adhesive layer 162 is disposed on the side of the first film layer 111 facing away from the display panel 150. For example, the first protective layer 121 and the first film layer 111 can be bonded together by the second adhesive layer 162.

[0116] For example, the material of the first protective layer 121 may include at least one of polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC), cyclic olefin polymer (COP), polymethyl methacrylate (PMMA), and cellulose triacetate (TCA).

[0117] In some embodiments, the sidewalls of the first protective layer 121 and the second adhesive layer 162 are flush. In this case, the outer boundary of the first protective layer 121 projected along the substrate thickness direction and the outer boundary of the second adhesive layer 162 projected along the substrate thickness direction coincide. Thus, the first protective layer 121 and the second adhesive layer 162 can be integrally cut, thereby reducing the alignment process between the first protective layer 121 and the second adhesive layer 162, simplifying the assembly process of the first protective layer 121 and the second adhesive layer 162, and reducing manufacturing costs.

[0118] In some embodiments, organic material is filled on the sides of the first membrane layer 111 or in the recessed area of ​​the first membrane layer 111 to protect the sides of the first membrane layer 111.

[0119] In some embodiments, at least a portion of the sidewall of the display panel 150 is flush with the sidewall of the first adhesive layer 161, thereby allowing the display panel 150 and the first adhesive layer 161 to be cut integrally, which can reduce the alignment process between the display panel 150 and the first adhesive layer 161, simplify the assembly process of the display panel 150 and the first adhesive layer 161, and reduce the manufacturing cost.

[0120] In other embodiments, the outer boundary of the first adhesive layer 161 as projected along the thickness direction of the substrate 151 is located within the projected boundary of the first film layer 111 as projected along the thickness direction of the substrate 151. This means that the first adhesive layer 161 is recessed relative to the first film layer 111. Since the first film layer 111 is recessed relative to the display panel 150, the first adhesive layer 161 is recessed relative to the display panel 150.

[0121] For example, the material of at least one of the first adhesive layer 161, the second adhesive layer 162, and the third adhesive layer 163 may include at least one of optically clear adhesive (OCA) and epoxy resin. The adhesive layer may be bonded to adjacent film layers. The material of the adhesive layer may include organic materials.

[0122] See Figure 7 In some embodiments, the display module 100 further includes a first support layer 141 located on the backlight side of the display panel 150. The first support layer 141 can be used to support the display panel 150 before it is cut.

[0123] For example, the material of the first support layer 141 may include at least one of polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC), cyclic olefin polymer (COP), polymethyl methacrylate (PMMA), cellulose triacetate (TCA), and glass.

[0124] In embodiments where the material of the first support layer 141 is glass, the material of the first support layer 141 may be ultra-thin glass.

[0125] See Figure 7 In some embodiments, the display module 100 includes a second support layer 142 located on the backlight side of the display panel 150. For example, the second support layer 142 is located on the side of the first support layer 141 away from the display panel 150. The second support layer 142 can be used to support the display panel 150 after it has been cut, thereby improving the support effect on the display panel 150. When the display module 100 is a foldable display module 100, the second support layer 142 can drive the display module 100 to fold or flatten under the action of external force.

[0126] For example, the material of the second support layer 142 includes carbon fiber, titanium alloy, amorphous alloy, high-strength steel, stainless steel, etc.

[0127] For example, the ratio between the thickness of the first film layer 111 and the thickness of the second support layer 142 ranges from 0.1 to 0.6. This avoids the first film layer 111 being too thick, which is beneficial for improving the bending performance of the first film layer 111. In addition, it avoids the first film layer 111 being too thin, which is beneficial for improving the impact resistance of the first film layer 111. For example, the ratio between the thickness of the first film layer 111 and the thickness of the second support layer 142 ranges from 1 / 3 to 1 / 2.

[0128] For example, the ratio between the thickness of the first film layer 111 and the thickness of the second support layer 142 is 0.1, 0.2, 0.3, 1 / 3, 0.4, 0.5, 0.6 or any value between 0.1 and 0.6.

[0129] In some embodiments, the stiffness of the second support layer 142 can be greater than that of the first support layer 141, thereby making the second support layer 142 more stiff, which is beneficial to improving the support effect and impact resistance of the second support layer 142.

[0130] See Figure 7In some embodiments, the first outer boundary WJ1 is located within the orthographic projection of the first support layer 141 along the thickness direction of the substrate 151. This causes the first film layer 111 to be recessed relative to the first support layer 141. When the edge of the display module 100 is impacted by an external force, the external force can first act on the outer first support layer 141, be buffered by the first support layer 141, and then be transmitted inward. This helps to reduce the edge damage of the first film layer 111 caused by direct impact from external forces, thereby helping to extend the product life.

[0131] In some embodiments, in at least a portion of the border region 100b, the outer boundary of the orthographic projection of the first support layer 141 along the thickness direction of the substrate 151 is located between the second outer boundary WJ2 and the orthographic projection of at least one encapsulation dam 180 along the thickness direction of the substrate 151 (i.e., the fourth outer boundary WJ4). The orthographic projection of at least one encapsulation dam 180 along the thickness direction of the substrate 151 is located within the orthographic projection of the first support layer 141 along the thickness direction of the substrate 151, and the orthographic projection of at least one encapsulation dam 180 along the thickness direction of the substrate 151 is located within the orthographic projection of the second film layer 112 along the thickness direction of the substrate 151. Thus, in at least a portion of the bezel area 100b, the first support layer 141 is recessed relative to the display panel 150. When the edge of the display module 100 is impacted by an external force, the edge of the first support layer 141 avoids the outermost stress concentration area of ​​the display module 100, preventing stress concentration at the edge of the first support layer 141. This reduces edge damage caused by direct impact, extending product lifespan. Furthermore, the first support layer 141 can cover and shield the area where each encapsulation dam 180 is located from the backlight side. When the edge of the display module 100 is impacted by an external force, this helps prevent cracking of the encapsulation dam 180, improving the encapsulation effect of the display module 100 and further extending product lifespan. In this case, the first support layer 141 can be made of glass.

[0132] For example, the distance between the outer boundary and the second outer boundary WJ2 of the first support layer 141 projected along the thickness direction of the substrate is smaller than the distance between the first outer boundary WJ1 and the second outer boundary WJ2. This makes the inward dimension of the first support layer 141 relative to the display panel 150 smaller than the inward dimension of the first film layer 111 relative to the display panel 150. When the edge of the display module 100 is impacted by external force, the edge of the first film layer 111 can better avoid the stress concentration area on the outermost side of the display module 100, so that the stress will not be concentrated on the edge area of ​​the first film layer 111. This can reduce the edge damage of the first film layer 111 caused by direct impact from external force, which is beneficial to extending the product life.

[0133] In other embodiments, at least a portion of the sidewall of the display panel 150 is flush with the sidewall of the first support layer 141. In this way, the display panel 150 and the first support layer 141 can be cut as a single piece, which can reduce the alignment process between the display panel 150 and the first support layer 141, simplify the assembly process of the display panel 150 and the first support layer 141, and reduce the manufacturing cost.

[0134] See Figure 6 In some embodiments, the display module 100 includes an opening region 100c, and a display region 100a surrounds at least a portion of the outer periphery of the opening region 100c. The display panel 150 has a first through-hole 171, the orthographic projection of the first through-hole 171 along the thickness direction of the substrate 151 coincides with the opening region 100c, that is, the first through-hole 171 defines the boundary of the opening region 100c. At least a portion of the display module 100 located in the opening region 100c is light-transmitting, thereby allowing a photosensitive element to be disposed on the backlight side of the display module 100. For example, the photosensitive element can be a camera or other photosensitive elements. This application embodiment uses a camera as an example for illustration.

[0135] In some embodiments, the second support layer 142 has a second through hole 172, which is at least partially located in the opening region 100c. The ratio of the diameter of the second through hole 172 to the diameter of the first through hole 171 is in the range of 0.8-1.2, so that the diameters of the first through hole 171 and the second through hole 172 are relatively close.

[0136] For example, the ratio of the diameter of the second through hole 172 to the diameter of the first through hole 171 is 0.8, 0.9, 1.0, 1.1, 1.2 or any value between 0.8 and 1.2.

[0137] See Figure 6 In some embodiments, the orthographic projection of the second through-hole 172 along the thickness direction of the substrate 151 lies within the orthographic projection of the first through-hole 171 along the thickness direction of the substrate 151. This results in a smaller size for the second through-hole 172, which helps prevent the camera from contacting the display panel 150 through the second through-hole 172 during camera assembly, thus preventing damage to the display panel 150. It also prevents damage to the display panel 150 from other external structures. For example, it prevents cleaning tools from contacting the display panel 150 through the second through-hole 172 when cleaning foreign objects, thus preventing damage to the display panel 150. Specifically, when assembling the camera on the backlight side of the display module 100, the camera first contacts the second support layer 142.

[0138] See Figure 6In some embodiments, the orthographic projection of the opening area 100c along the thickness direction of the substrate 151 is located within the orthographic projection of the first film layer 111 along the thickness direction of the substrate 151. This is equivalent to the first film layer 111 not having an opening in the opening area 100c, and the first film layer 111 completely covering the opening area 100c, which is beneficial to improving the protective effect of the first film layer 111 on the display panel 150.

[0139] See Figure 6 In some embodiments, the first adhesive layer 161 is bonded to the side of the first film layer 111 facing the display panel 150. The first adhesive layer 161 has a third through hole 173 located in the opening area 100c. This helps to reduce the loss of light entering the opening area 100c caused by the first adhesive layer 161, thereby improving the transmittance of the opening area 100c.

[0140] See Figure 6 and Figure 7 In some embodiments, the display module 100 includes a second adhesive layer 162, which is bonded to the side of the first film layer 111 facing away from the display panel 150. See also Figure 6 The orthographic projection of the opening area 100c along the thickness direction of the substrate 151 is located within the orthographic projection of the second adhesive layer 162 along the thickness direction of the substrate 151. Thus, neither the first film layer 111 nor the second adhesive layer 162 has an opening in the opening area 100c. The second adhesive layer 162 covers the opening area 100c, which helps to increase the bonding area between the second adhesive layer 162 and the first film layer 111 and improve the bonding stability between the second adhesive layer 162 and the first film layer 111. In addition, the opening process of the second adhesive layer 162 is eliminated, which helps to reduce the manufacturing cost.

[0141] See Figure 6 In some embodiments, the display module 100 includes a first light-shielding layer 131, which is disposed around at least a portion of the outer periphery of the opening area 100c. The first light-shielding layer 131 has a fourth through hole 174 located in the opening area 100c, so that ambient light can pass through the fourth through hole 174 to enable the display module 100 in the opening area 100c to transmit light. In addition, the first light-shielding layer 131 can be used to block the metallic reflected light of the display panel 150 near the opening area 100c, which is beneficial to improving the display effect of the display panel 150.

[0142] In some embodiments, the first light-shielding layer 131 is located on the side of the first film layer 111 facing away from the display panel 150. For example, the first light-shielding layer 131 may be located between the second adhesive layer 162 and the first protective layer 121.

[0143] In some embodiments, the orthographic projection of the second through-hole 172 along the thickness direction of the substrate 151 has a fifth outer boundary WJ5, which is located within the orthographic projection of the first light-shielding layer 131 along the thickness direction of the substrate 151. This makes the size of the fourth through-hole 174 smaller, which is beneficial for gathering the light entering the fourth through-hole 174 from the environment, so that the light enters the opening area 100c at a small angle. In addition, when the material of the second support layer 142 is metal, the first light-shielding layer 131 can block the reflected light of the second support layer 142 near the second through-hole 172, thereby improving the display effect of the display module 100.

[0144] In some embodiments, the orthographic projection of the first light-shielding layer 131 along the thickness direction of the substrate 151 includes a first inner boundary NJ1 and a sixth outer boundary WJ6. The fifth outer boundary WJ5 is located between the first inner boundary NJ1 and the sixth outer boundary WJ6. The distance between the fifth outer boundary WJ5 and the sixth outer boundary WJ6 is smaller than the distance between the fifth outer boundary WJ5 and the first inner boundary NJ1. Thus, the distance between the fifth outer boundary WJ5 and the first inner boundary NJ1 is relatively large, which is beneficial to make the aperture of the fourth through hole 174 smaller. This is beneficial to gather the light entering the fourth through hole 174 from the environment, so that the light enters the opening area 100c at a small angle. In addition, making the distance between the fifth outer boundary WJ5 and the sixth outer boundary WJ6 smaller is beneficial to reduce the size of the first light-shielding layer 131. It can compress the width of the black border around the opening area 100c while ensuring the light-shielding performance, so as to improve the visual integrity of the screen.

[0145] In some embodiments, the diameter of the first through hole 171 is larger than the diameter of the fourth through hole 174. This makes the diameter of the fourth through hole 174 smaller, which helps to gather the light entering the fourth through hole 174 from the environment, so that the light enters the opening area 100c at a small angle. In addition, making the diameter of the first through hole 171 larger can reduce the obstruction of the display panel 150 to the light passing through the fourth through hole 174, so that more light can reach the camera.

[0146] In some embodiments, the outer boundary of the first through hole 171 of the display panel 150 along the thickness direction of the substrate 151 is located within the orthogonal projection of the first light-shielding layer 131 along the thickness direction of the substrate 151. In this way, the obstruction of light passing through the fourth through hole 174 by the display panel 150 can be reduced, allowing more light to reach the camera.

[0147] See Figure 6In some embodiments, the display module 100 includes a transition region 100d, located between the opening region 100c and the display region 100a. The transition region 100d may surround at least a portion of the outer periphery of the opening region 100c. A portion of the first light-shielding layer 131 is located in the transition region 100d. For example, if the light-emitting device 152 is disposed in the display region 100a, the light-emitting device 152 may not be disposed in the transition region 100d. The outer diameter of the transition region 100d is less than or equal to the outer diameter of the first light-shielding layer 131, thereby allowing the first light-shielding layer 131 to cover the transition region 100d more completely and ensuring a better light-shielding effect.

[0148] In some embodiments, the outer boundary of the first light-shielding layer 131, which is projected along the thickness direction of the substrate 151, surrounds the outer periphery of the transition region 100d. This allows the first light-shielding layer 131 to extend from the transition region 100d into the display region 100a, resulting in a wider coverage area and improving the light-shielding effect of the first light-shielding layer 131.

[0149] For example, the orthographic projection of the first light-shielding layer 131 in the thickness direction of the substrate 151 covers at least one light-emitting device 152. For example, the orthographic projection of the light-emitting device 152 on the substrate is a third orthographic projection. Among two adjacent third orthographic projections in the direction from the aperture region 100c to the display region 100a, the size of one third orthographic projection in the direction from the aperture region 100c to the display region 100a is a first size, the size of the other third orthographic projection in the direction from the aperture region 100c to the display region 100a is a second size, and the distance between the two adjacent third orthographic projections is a third size. The sum of the first size, the second size, and the third size is a first value. The first value is greater than or equal to the size of the first light-shielding layer 131 located in the display region in the direction from the aperture region 100c to the display region 100a.

[0150] See Figure 7 In some embodiments, the first outer boundary WJ1 is located within the orthogonal projection of the second support layer 142 along the thickness direction of the substrate 151. This causes the first film layer 111 to be recessed relative to the second support layer 142. When the edge of the display module 100 is impacted by an external force, the edge of the first film layer 111 avoids the outermost stress concentration area of ​​the display module 100, so that the stress will not be concentrated in the edge area of ​​the first film layer 111. This can reduce the edge damage of the first film layer 111 caused by direct impact from external forces, which is beneficial to extending the product life.

[0151] See Figure 7In some embodiments, the second support layer 142 has a seventh outer boundary WJ7 in its orthogonal projection along the thickness direction of the substrate 151. The seventh outer boundary WJ7 is at least partially located on the side of the second outer boundary WJ2 of the display panel 150 away from the display area 100a. This makes the second support layer 142 at least partially extend outward relative to the display panel 150, so that the second support layer 142 can provide better support and protection for the display panel 150. For example, in at least one of the second sub-bezel area 102b, the third sub-bezel area 103b, and the fourth sub-bezel area 104b, the seventh outer boundary WJ7 is located on the side of the second outer boundary WJ2 away from the display area 100a.

[0152] In some embodiments, the distance between the seventh outer boundary WJ7 of any two of the second sub-border area 102b, the third sub-border area 103b, and the fourth sub-border area 104b and the display area 100a is equal. This makes it easier to make the width of any two of the second sub-border area 102b, the third sub-border area 103b, and the fourth sub-border area 104b more consistent, which helps to improve the aesthetics of the display module 100.

[0153] In some embodiments, the seventh outer boundary WJ7 of any two of the second sub-bezel areas 102b, the third sub-bezel area 103b, and the fourth sub-bezel area 104b is equal to the second outer boundary WJ2 of the display panel 150. This makes it easier to make the widths of any two of the second sub-bezel areas 102b, the third sub-bezel area 103b, and the fourth sub-bezel area 104b more consistent, which helps to improve the aesthetics of the display module 100.

[0154] In some embodiments, in the bezel area 100b located on at least one side of the display area 100a, the distance between the first outer boundary WJ1 and the second outer boundary WJ2 is greater than the distance between the seventh outer boundary WJ7 and the second outer boundary WJ2. This is equivalent to the inward dimension of the first film layer 111 relative to the display panel 150 being greater than the outward dimension of the second support layer 142 relative to the display panel 150. This results in a smaller outward dimension of the second support layer 142 relative to the display panel 150, which is beneficial for achieving a narrow bezel. In addition, the larger inward dimension of the first film layer 111 relative to the display panel 150 means that when the edge of the display module 100 is impacted by external force, the edge of the first film layer 111 can better avoid the stress concentration area on the outermost side of the display module 100. This can reduce edge damage to the first film layer 111 caused by direct impact from external force, which is beneficial for extending the product life.

[0155] See Figure 8 and Figure 16In some embodiments, the display panel 150 includes a light filter layer 144 located between the display panel 150 and the cover plate 101. A first adhesive layer 161 is bonded between the light filter layer 144 and the first film layer 111. For example, the light filter layer 144 may include multiple color resists 1441, which can block light of a different color from themselves and allow light of the same color to pass through. The multiple color resists 1441 are correspondingly disposed with multiple light-emitting devices 152, and the orthographic projection of the color resist 1441 on the substrate 151 overlaps with the orthographic projection of the corresponding light-emitting device 152 on the substrate 151.

[0156] In this embodiment, the correspondence between A and B can refer to either one A corresponding to at least one B, or one B corresponding to at least one A. This embodiment uses the example of one A corresponding to one B for illustration.

[0157] See Figure 16 In some embodiments, the filter layer 144 includes a third light-shielding layer 133, which surrounds the outer periphery of each color filter 1441.

[0158] For example, the light-shielding layer may be formed of a material capable of blocking light and absorbing light that shines on it, and the light-shielding layer may have a relatively dark color (e.g., black).

[0159] See Figure 2 and Figure 8 In some embodiments, the first outer boundary WJ1 of the first film layer 111 surrounds the outer periphery of the filter layer 144 along the thickness direction of the substrate 151. Thus, the filter layer 144 is recessed relative to the first film layer 111. When the edge of the display module 100 is impacted by an external force, the edge of the filter layer 144 avoids the outermost stress concentration area of ​​the display module 100, which can reduce the edge damage of the filter layer 144 caused by direct impact from external forces.

[0160] In some embodiments, the outer boundary of the first adhesive layer 161, projected along the thickness direction of the substrate 151, is located within the projected boundary of the filter layer 144, projected along the thickness direction of the substrate 151. This makes the first adhesive layer 161 recessed relative to the filter layer 144, which helps prevent the first adhesive layer 161 from overflowing through the filter layer 144 and reaching the sidewall of the display panel 150. It also helps prevent moisture from entering the display panel 150, thereby extending the service life of the display panel 150. The principle has been explained and will not be repeated here.

[0161] See Figure 7In some embodiments, the first outer boundary WJ1 is located within the orthogonal projection of the first protective layer 121 along the thickness direction of the substrate 151. This causes the first film layer 111 to be recessed relative to the first protective layer 121. When the edge of the display module 100 is impacted by an external force, the edge of the first film layer 111 avoids the outermost stress concentration area of ​​the display module 100, so that the stress will not be concentrated in the edge area of ​​the first film layer 111. This can reduce the edge damage of the first film layer 111 caused by direct impact from external forces, which is beneficial to extending the product life.

[0162] In some embodiments, the distance between the outer boundary of the first protective layer 121 projected along the thickness direction of the substrate 151 and the display area 100a is greater than the distance between the first outer boundary WJ1 and the display area 100a. This makes the first film layer 111 recessed relative to the first protective layer 121, which can reduce the edge damage of the first film layer 111 caused by direct impact from external forces, and is beneficial to extending the product life. The principle has been explained and will not be repeated here.

[0163] In some embodiments, the display module 100 includes a second light-shielding layer 132, which is at least partially located in the border area 100b and at least partially surrounds the outer periphery of the display area 100a. The distance between the outer boundary of the first protective layer 121 projected along the thickness direction of the substrate 151 and the display area 100a is greater than or equal to the distance between the outer boundary of the second light-shielding layer 132 projected along the thickness direction of the substrate 151 and the display area 100a. This makes the second light-shielding layer 132 recessed relative to the first protective layer 121, allowing the first protective layer 121 to completely cover the second light-shielding layer 132. This improves the protective effect of the first protective layer 121 on the second light-shielding layer 132 and ensures the long-term stability of the light-shielding performance of the second light-shielding layer 132.

[0164] In some embodiments, the second light-shielding layer 132 is located between the second adhesive layer 162 and the first protective layer 121.

[0165] In some embodiments, the second light-shielding layer 132 may extend from the border area 100b into the display area 100a.

[0166] In some embodiments, the first protective layer 121 has an eighth outer boundary WJ8 when projected along the thickness direction of the substrate 151, and the second light-shielding layer 132 has a second inner boundary NJ2 facing the display area 100a when projected along the thickness direction of the substrate 151. The distance between the eighth outer boundary WJ8 and the second inner boundary NJ2 located in at least one of the second sub-frame area 102b, the third sub-frame area 103b, and the fourth sub-frame area 104b is greater than the distance between the second inner boundary NJ2 and the boundary of the display area 100a. This makes the distance between the second inner boundary NJ2 and the boundary of the display area 100a smaller, and the width of the portion of the second light-shielding layer 132 extending into the display area 100a narrower. This can reduce the number of light-emitting devices 152 blocked by the second light-shielding layer 132, which is beneficial to increasing the effective display panel 150.

[0167] See Figure 7 In some embodiments, the display module 100 includes a second protective layer 122, which is located on the side of the first protective layer 121 facing away from the display panel 150. Thus, the simultaneous presence of the first and second protective layers 121 improves the protection of the first film layer 111. Since the second protective layer 122 is closer to the surface where the user operates daily compared to the first protective layer 121, it experiences greater wear and tear during daily operation. If the second protective layer 122 is extended outward from the first protective layer 121 along the direction from the display area to the frame area, when the edge of the display module 100 is subjected to external impact, the edge of the second protective layer 122 will have more wear and tear combined with the impact, making it more susceptible to damage than the first protective layer 121.

[0168] In some embodiments, the outer boundary of the second protective layer 122, projected along the thickness direction of the substrate 151, is located within the projected boundary of the first protective layer 121, projected along the thickness direction of the substrate 151. This makes the second protective layer 122 recessed relative to the first protective layer 121. When the edge of the display module 100 is impacted by an external force, the edge of the second protective layer 122 avoids the outermost stress concentration area of ​​the display module 100, reducing damage to the second protective layer 122 caused by direct impact from external forces, which is beneficial to extending the product life.

[0169] For example, the material of the second protective layer 122 may include at least one of polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC), cyclic olefin polymer (COP), polymethyl methacrylate (PMMA), and cellulose triacetate (TCA).

[0170] In some embodiments, the distance between the outer boundary of the second protective layer 122 projected along the thickness direction of the substrate 151 and the eighth outer boundary WJ8 of the first protective layer 121 is a fifth distance, and the distance between the first outer boundary WJ1 and the eighth outer boundary WJ8 of the first protective layer 121 is a sixth distance. The fifth distance is greater than the sixth distance. Thus, the size of the second protective layer 122 that is recessed relative to the first protective layer 121 is greater than the size of the first film layer 111 that is recessed relative to the first protective layer 121. This makes the size of the second protective layer 122 that is recessed relative to the first protective layer 121 larger, which is beneficial to better prevent the edge of the second protective layer 122 from being directly impacted by external forces and causing edge damage to the second protective layer 122.

[0171] See Figure 7 In some embodiments, the first outer boundary WJ1 is located within the orthogonal projection of the second light-shielding layer 132 along the thickness direction of the substrate 151. This causes the second light-shielding layer 132 to expand outward relative to the first film layer 111, resulting in a larger coverage area of ​​the second light-shielding layer 132 in the frame region 100b, which is beneficial to improving the light-shielding effect of the second light-shielding layer 132.

[0172] In some embodiments, the seventh outer boundary WJ7 of the second support layer 142 surrounds the outer periphery of the second light-shielding layer 132 along the orthographic projection of the substrate 151. This causes the second support layer 142 to extend outward relative to the second light-shielding layer 132, which helps prevent the middle frame from squeezing the second light-shielding layer 132 during assembly. The edge of the second support layer 142 can serve as a mating part with the middle frame, and the edge of the second support layer 142 can be connected to the middle frame.

[0173] In some embodiments, the orthographic projection of the second light-shielding layer 132 along the thickness direction of the substrate 151 has a second inner boundary NJ2 facing the display area 100a. The distance between the second inner boundary NJ2 located in at least one of the second sub-bezel area 102b, the third sub-bezel area 103b, and the fourth sub-bezel area 104b and the display area 100a is smaller than the distance between the second outer boundary WJ2 and the display area 100a. Thus, in at least one of the second sub-bezel area 102b, the third sub-bezel area 103b, and the fourth sub-bezel area 104b, the size of the second light-shielding layer 132 extending into the display area 100a is smaller, which can reduce the number of light-emitting devices 152 blocked by the second light-shielding layer 132 and is beneficial to increasing the effective display panel 150.

[0174] See Figures 9-10In some embodiments, the second light-shielding layer 132 is located on the side of at least one encapsulation dam 180 away from the substrate 151. This allows the second light-shielding layer 132 to provide better coverage of the area where each encapsulation dam 180 is located. The second light-shielding layer 132 can also provide better coverage of the metal wiring located inside the encapsulation dam 180, which helps to reduce the reflected light of the metal wiring.

[0175] In some embodiments, a portion of the second light-shielding layer 132 is located in the display area 100a. The second light-shielding layer 132 extends from the frame area 100b into the display area 100a. The display panel 150 includes a plurality of light-emitting devices 152 located in the display area 100a. The plurality of light-emitting devices 152 are disposed on one side of the substrate 151. The orthographic projection of the second light-shielding layer 132 in the thickness direction of the substrate 151 covers at least one light-emitting device 152. In this way, the width of the second light-shielding layer 132 located in the display area 100a can be avoided to be too small, which is beneficial to improving the light-shielding effect of the second light-shielding layer 132.

[0176] For example, the first value is greater than or equal to the size of the second light-shielding layer 132 located in the display area along the direction from the display area 100a to the border area 100b.

[0177] See Figure 9 and Figure 16 In some embodiments, the display panel 150 includes an inorganic encapsulation layer 1545. The orthographic projection of the inorganic encapsulation layer 1545 along the thickness direction of the substrate has a ninth outer boundary WJ9. The inorganic encapsulation layer 1545 is located on the side of at least one encapsulation dam 180 away from the substrate 151. The outer boundary of the orthographic projection of the inorganic encapsulation layer 1545 along the thickness direction of the substrate 151 is located on the side of at least one encapsulation dam 180 away from the display area 100a along the thickness direction of the substrate 151. In this way, the inorganic encapsulation layer 1545 completely covers each encapsulation dam 180, and the inorganic encapsulation layer 1545 extends outward relative to each encapsulation dam 180, which is beneficial to improving the encapsulation effect of the inorganic encapsulation layer 1545.

[0178] In some embodiments, since the first sub-frame area 101b includes a bonding area 101b1, a large number of traces are arranged within the first sub-frame area 101b, making it a vulnerable area where moisture can easily penetrate. The first outer boundary WJ1 of the first sub-frame area 101b lies within the orthographic projection of the inorganic encapsulation layer 1545 along the thickness direction of the substrate 151. Thus, within the first sub-frame area 101b, the inorganic encapsulation layer 1545 extends outward relative to the first film layer 111, resulting in a larger coverage width of the inorganic encapsulation layer 1545 over the first sub-frame area 101b, which is beneficial for improving the encapsulation effect of the inorganic encapsulation layer 1545 over the first sub-frame area 101b.

[0179] See Figure 3In some embodiments, the display panel 150 includes a gate driving circuit 192 located in the bezel area 100b and on both sides of the display area 100a along the second direction B. The orthographic projection of the gate driving circuits 192 located on both sides of the display area 100a along the second direction B along the thickness direction of the substrate 151 lies within the orthographic projection of the first film layer 111 along the thickness direction of the substrate 151. This allows the first film layer 111 to better cover the area of ​​the gate driving circuit 192, which helps to prevent the wiring of the gate driving circuit 192 from breaking when the edge of the display module 100 is subjected to external impact, thereby improving the electrical performance of the display module 100.

[0180] See Figure 3 In some embodiments, the display panel 150 further includes signal traces located in the bezel area 100b. The orthographic projection of the signal traces along the thickness direction of the substrate 151 lies within the orthographic projection of the first film layer 111 along the thickness direction of the substrate 151. The signal traces include first signal lines 1931, which are located in the bezel area 100b and on both sides of the display area 100a along the second direction B. The orthographic projection of the first signal lines 1931 located on both sides of the display area 100a along the second direction B along the thickness direction of the substrate 151 lies within the orthographic projection of the first film layer 111 along the thickness direction of the substrate 151. This allows the first film layer 111 to better cover the area of ​​the first signal lines 1931. When the edge of the display module 100 is subjected to external impact, it helps to prevent the first signal lines 1931 from breaking due to the external impact, thereby improving the electrical performance of the display module 100.

[0181] In some embodiments, the first signal line 1931 is configured as a reference signal line (Vref).

[0182] In some embodiments, the orthographic projection of the first signal line 1931 on the substrate 151 is located on the side of the orthographic projection of the gate drive circuit 192 on the substrate 151 that faces the display area 100a.

[0183] In some embodiments, the gate driving circuit 192 includes at least one of a light-emitting control circuit 1923 and a scanning circuit. The scanning circuit may include at least one of a first scanning circuit 1921 and a second scanning circuit 1922. The scanning circuit can generate multi-level timing scanning signals and can time-division control the pixel circuit reset stage, data writing stage, and compensation stage. The light-emitting control circuit 1923 is an EM (Emission Circuit) circuit. The light-emitting control circuit 1923 outputs an EM pulse signal, which can control the on / off state of the current path of the light-emitting device 152 and also control the light emission brightness of the light-emitting device 152.

[0184] See Figure 3 In some embodiments, the signal trace includes a first power line 191 located in the bezel region 100b. The orthographic projection of the first power line 191, located in at least one of the second sub-bezel region 102b, the third sub-bezel region 103b, and the fourth sub-bezel region 104b, along the thickness direction of the substrate 151, lies within the orthographic projection of the first film layer 111 along the thickness direction of the substrate 151. Thus, in at least one of the second sub-bezel region 102b, the third sub-bezel region 103b, and the fourth sub-bezel region 104b, the first film layer 111 provides better coverage of the area of ​​the first power line 191. When the edge of the display module 100 is subjected to external impact, it helps to prevent the first power line 191 from breaking due to the external impact, thereby improving the electrical performance of the display module 100.

[0185] In some embodiments, the first power line 191 may be a low-level power line (ELVSS).

[0186] See Figure 10 In some embodiments, the orthographic projection of the gate driving circuits 192 located on both sides of the display area 100a along the second direction B along the thickness direction of the substrate 151 is located within the orthographic projection of the second light-shielding layer 132 along the thickness direction of the substrate 151. In this way, the second light-shielding layer 132 provides better coverage of the gate driving circuits 192 located on both sides of the display area 100a along the second direction B, which helps to prevent reflected light from the gate driving circuits 192 located on both sides of the display area 100a along the second direction B.

[0187] See Figure 10 In some embodiments, the orthographic projection of the first signal lines 1931 located on both sides of the display area 100a along the second direction B along the thickness direction of the substrate 151 is located within the orthographic projection of the second light-shielding layer 132 along the thickness direction of the substrate 151. In this way, the second light-shielding layer 132 provides better coverage of the first signal lines 1931 located on both sides of the display area 100a along the second direction B, which helps to prevent reflected light from the first signal lines 1931 located on both sides of the display area 100a along the second direction B.

[0188] See Figure 9 and Figure 10 In some embodiments, the orthographic projection of the first power line 191 located in at least one of the second sub-frame area 102b, the third sub-frame area 103b, and the fourth sub-frame area 104b along the thickness direction of the substrate 151 is located within the orthographic projection of the second light-shielding layer 132 along the thickness direction of the substrate 151. Thus, in at least one of the second sub-frame area 102b, the third sub-frame area 103b, and the fourth sub-frame area 104b, the second light-shielding layer 132 provides better coverage of the first power line 191, which helps to prevent reflected light from the first power line 191.

[0189] See Figure 4 In some embodiments, the display module 100 includes a first bent area 100w1 and a non-bent area 100f arranged along a first direction A. The first bent area 100w1 and the non-bent area 100f can be arranged along the first direction A. The first direction A is the arrangement direction of the first bent area 100w1 and the non-bent area 100f. The number of first bent areas 100w1 and non-bent areas 100f is at least one, and one first bent area 100w1 and one non-bent area 100f are alternately arranged.

[0190] For example, the number of first bending zones 100w1 can be any number of 1, 2, 3, or more than 3. The number of non-bending zones 100f can be any number of 1, 2, 3, or more than 3.

[0191] For example, non-bending areas 100f are provided on both sides of the first bending area 100w1 along the first direction A.

[0192] This embodiment of the application uses one first bending area 100w1 and two non-bending areas 100f, with the two non-bending areas 100f connected by a first bending area 100w1, as an example. The two non-bending areas 100f may include a first non-bending area 100f1 and a second non-bending area 100f2, with the first bending area 100w1 located between the first non-bending area 100f1 and the second non-bending area 100f2. The first bending area 100w1 can be bent and flattened, thereby realizing the folding and flattening of the display module 100. The first non-bending area 100f1, the first bending area 100w1, and the second non-bending area 100f2 are arranged sequentially along a direction away from the first sub-border area 101b.

[0193] It should be noted that the display module 100 may include a flattened state, a folded state, and an intermediate state between the two. The state of the display module 100 is also the state of the display device. After the second support layer 142 is connected to the display panel 150, the user applies force to the display panel 150 through the second support layer 142, which can drive the display panel 150 to switch between the flattened state and the folded state.

[0194] See Figure 4For example, the flattened state refers to the state where the various parts of the display module 100 are approximately on the same plane. In this state, the display panel 150 of the first non-bending area 100f1, the display panel 150 of the second non-bending area 100f2, and the display panel 150 of the first bending area 100w1 are approximately on the same plane, and the angle between the display panel 150 of the first non-bending area 100f1 and the display panel 150 of the second non-bending area 100f2 is approximately 180 degrees. In the flattened state, the display area of ​​the display module 100 is larger to ensure a better user experience.

[0195] For example, the folded state refers to the display panel 150 of the first bending area 100w1 being bent, and the display panel 150 of the first non-bending area 100f1 and the display panel 150 of the second non-bending area 100f2 at least partially overlapping in the thickness direction of the display module 100, with the included angle between the display panel 150 of the first non-bending area 100f1 and the display panel 150 of the second non-bending area 100f2 being approximately 0 degrees. In the folded state, the display module 100 and the display device having the display module 100 are smaller in size, making it convenient to store and carry the display device.

[0196] In some embodiments, the display device can be an inwardly folding display device, that is, when the display device is in a folded state, the folded display panel 150 is located inside the second support layer 142, the cover plate 101 is located inside the display panel 150, and the second support layer 142 can protect the display panel 150. At this time, the display panel 150 located in the first non-bending region 100f1 and the display panel 150 located in the second non-bending region 100f2 are arranged facing each other.

[0197] In other embodiments, the display device can be an outward-folding display device, that is, when the display device is in a folded state, the folded display panel 150 is located outside the second support layer 142, and the cover plate 101 is located outside the display panel 150. The display panel 150 can perform display functions in the folded state to meet the needs of different display scenarios. At this time, the display panels 150 disposed in the first non-bending area 100f1 and the second non-bending area 100f2 are arranged opposite to each other.

[0198] In some embodiments, the display module 100 can be bent in a teardrop shape, so that the distance between the display panels 150 of the two non-bending areas 100f is closer, which can reduce the entry of external dust between the display panels 150 of the two non-bending areas 100f, thereby protecting the display panels 150.

[0199] See Figure 4In some embodiments, since both the bonding area 101b1 and the opening area 100c are sensitive and weak areas of the display module 100, the bonding area 101b1 and the opening area 100c can be respectively set on both sides of the first bending area 100w1 along the first direction A. In this way, the bonding area 101b1 and the opening area 100c are set far apart, which is beneficial to improving the structural stability of the display module 100.

[0200] See Figure 12 and Figure 13 In some embodiments, the bending axis Z of the display module 100 is located in the first bending region 100w1. The second support layer 142 includes a first support region 1421 and a second support region 1422 located on both sides of the first support region 1421 in the first direction A. The first support region 1421 is located in the first bending region 100w1. The stiffness of the first support region 1421 is less than that of the second support region 1422. This makes the first support region 1421 less stiff, making it easier to bend and improving its bending performance. This, in turn, improves the bending performance of the display module 100 and alleviates the creases of the display module 100 corresponding to the first support region 1421. In addition, the second support region 1422 has greater stiffness, which is beneficial to improving its impact resistance. Therefore, the second support layer 142 can balance impact resistance and bending performance. Among them, the bending axis Z is a virtual line and not a solid structure. For example, the bending axis Z can be the center line of the first bending area 100w1.

[0201] In some embodiments, the second support region 1422 may be at least partially located within the first bending region 100w1. For example, the second support region 1422 may be completely located within the first bending region 100w1.

[0202] See Figure 14 and Figure 15In some embodiments, the first support region 1421 and the second support region 1422 are provided with perforated holes 175. The rigidity of the first support region 1421 and the second support region 1422 can be reduced by providing perforated holes 175. The rigidity of the first support region 1421 and the second support region 1422 can be adjusted by adjusting the arrangement of the perforated holes 175. The edges of the first support region 1421 and the second support region 1422 are determined according to the arrangement of the perforated holes 175. The arrangement of the multiple perforated holes 175 in the first support region 1421 is different from the arrangement of the multiple perforated holes 175 in the second support region 1422. The arrangement includes the dimension of the perforated hole 175 along the first direction A, the dimension of the perforated hole 175 along the second direction B, the distance between two adjacent perforated holes 175 along the first direction A, and the distance between two adjacent perforated holes 175 along the second direction B, etc. Along the direction from the first bending zone 100w1 to the non-bending zone 100f, the midline between two adjacent columns of perforated holes 175 where the arrangement changes can be considered the boundary line between the first support zone 1421 and the second support zone 1422. The virtual line formed by connecting the boundaries of the outermost column of perforated holes 175 on the side away from the bending axis Z can be considered the boundary of the second support zone 1422 on the side away from the bending axis Z.

[0203] In some embodiments, the cutout 175 may extend along the bending axis Z-direction. The cross-section of the cutout 175 along the thickness direction of the substrate 151 may be rectangular, trapezoidal, or T-shaped.

[0204] In some embodiments, the diameter of the cutout 175 at the end near the display panel 150 is smaller than or equal to the diameter of the cutout 175 at the end away from the display panel 150. This makes the diameter of the cutout 175 at the end near the display panel 150 smaller, which is beneficial to improving the support effect of the second support layer 142 on the display panel 150. In addition, the diameter of the cutout 175 at the end away from the display panel 150 is larger, which is beneficial to reducing the rigidity of the second support layer 142 with the cutout 175.

[0205] For example, the ratio of the diameter of the cutout 175 at the end near the display panel 150 to the diameter of the cutout 175 at the end away from the display panel 150 is less than or equal to 2. For instance, the ratio of the diameter of the cutout 175 at the end near the display panel 150 to the diameter of the cutout 175 at the end away from the display panel 150 can be 1, 1.2, 1.5, 1.7, 2, or any value less than 2.

[0206] See Figure 5In some embodiments, the first bending region 100w1 includes an arc apex region 100w2, and the bending axis Z is located in the arc apex region 100w2. In the folded state, the curvature of the arc apex region 100w2 is greater than the curvature of the rest of the first bending region 100w1, resulting in a greater degree of bending and making it more susceptible to damage during folding. The arc apex region 100w2 is also more prone to creases. For example, the arc apex region 100w2 may be located in the middle of the first bending region 100w1.

[0207] In some embodiments, the orthographic projection of the arc apex region 100w2 on the substrate 151 is located within the outer boundary of the orthographic projection of the first support region 1421 on the substrate 151, thereby making the stiffness of the second support layer 142 of the arc apex region 100w2 smaller, which helps to alleviate the creases of the second support layer 142 of the arc apex region 100w2.

[0208] In other embodiments, the outer boundary of the orthographic projection of the arc apex region 100w2 onto the substrate 151 coincides with the outer boundary of the orthographic projection of the first support region 1421 onto the substrate 151.

[0209] See Figure 12 In some embodiments, a first groove 1761 is provided on at least one side surface of the first film layer 111 along the thickness direction of the display module 100. The first groove 1761 is located at least in the first bending region 100w1. By providing the first groove 1761, the thickness of the first film layer 111 in the region where the first groove 1761 is located can be reduced, thereby making the stiffness of the first film layer 111 in the region where the first groove 1761 is located smaller, making the first film layer 111 in the region where the first groove 1761 is located easier to bend, thereby improving the bending performance of the first film layer 111 in the region where the first groove 1761 is located, thereby improving the bending performance of the display module 100 and alleviating the creases of the display module 100 in the region where the first groove 1761 is located.

[0210] See Figure 12 In some embodiments, the orthographic projection of the arc apex region 100w2 on the substrate 151 is located within the orthographic projection of the first bottom wall 1771 on the substrate 151. This allows the first film layer 111 of the arc apex region 100w2 to have lower stiffness, which helps to alleviate damage to the first film layer 111 of the arc apex region 100w2 during bending and also reduces creases in the first film layer 111 of the arc apex region 100w2.

[0211] In other embodiments, the orthographic projection of the arc apex region 100w2 on the substrate 151 coincides with the orthographic projection of the first bottom wall 1771 on the substrate 151.

[0212] In some embodiments, the width of the first support region 1421 in the first direction A is smaller than the width of the first bottom wall 1771 in the first direction A. This can better alleviate the creases and cracks of the first membrane layer 111 in the area where the first bottom wall 1771 is located, making the first membrane layer 111 in the area where the first bottom wall 1771 is located easier to bend and improving the bending performance of the first membrane layer 111 in the area where the first bottom wall 1771 is located.

[0213] See Figure 12 In some embodiments, a portion of the first sidewall 1781 is located in the first bending region 100w1, and another portion of the first sidewall 1781 is located in the non-bending region 100f. Thus, the first sidewall 1781 is arranged across the first bending region 100w1 and the non-bending region 100f, so that the first bending region 100w1 and the non-bending region 100f transition through the gently sloping first sidewall 1781, which helps to prevent stress concentration at the boundary between the first bending region 100w1 and the non-bending region 100f.

[0214] For example, the end of the first sidewall 1781 away from the substrate 151 is inclined in a direction away from the bending axis Z relative to the end of the first sidewall 1781 near the substrate 151. The angle β between the first sidewall 1781 and the first bottom wall 1771 is greater than or equal to 165°. This makes the angle β between the first sidewall 1781 and the first bottom wall 1771 relatively large, resulting in a gentler slope of the first sidewall 1781. This makes the thickness change of the first film layer 111 in the region where the first sidewall 1781 is located gentler, which can better prevent stress concentration problems caused by abrupt thickness changes.

[0215] For example, the angle β between the first sidewall 1781 and the first bottom wall 1771 can be any value of 165°, 168°, 170°, 172°, 175° or greater than 165°.

[0216] See Figure 12 In some embodiments, the sum of the widths of the first support area 1421 and the two second support areas 1422 in the first direction A is greater than the width of the first bottom wall 1771 in the first direction A. This makes the sum of the widths of the first support area 1421 and the two second support areas 1422 in the first direction A larger, which can better alleviate the creases of the first support area 1421 and the second support area 1422, making the first support area 1421 and the second support area 1422 easier to bend and improving the bending performance of the first support area 1421 and the second support area 1422.

[0217] In some embodiments, the first film layer 111 has a tensile strength σ1 in the region where the first bottom wall 1771 is located, the width dimension of the first bottom wall 1771 in the first direction A is K, and the bending radius of the arc apex region 100w2 is R0, K, R0、 E, t, and σ1 satisfy: 0.9σ1≥R0[1-K / (2πR0)]*Et / 2≥0.5σ1. Where E is the elastic modulus of the first film layer 111 in the region of the first bottom wall 1771, and t is the thickness of the first film layer 111 in the region of the first bottom wall 1771. Fracture strength refers to the maximum stress a material can withstand when stretched under tensile force until it just breaks. When the display module is in a folded state, the stress on the first film layer 111 in the region of the first bottom wall 1771 is R0[1-K / (2πR0)]*Et, and the stress range of the first film layer 111 in the region of the first bottom wall 1771 is [0.5σ1, 0.9σ1], ensuring that the first film layer 111 will not break when bent.

[0218] For example, when the display module is in a folded state, the stress on the first film layer 111 in the area where the first bottom wall 1771 is located can be 0.5σ. 1、 0.6σ 1、 0.7σ 1、 0.8σ 1、 0.9σ1 or any value between [0.5σ1 and 0.9σ1].

[0219] In some embodiments, the stiffness of the first film layer 111 in the region where the first bottom wall 1771 is located is greater than the stiffness of the first support region 1421. This results in a lower stiffness of the first support region 1421, which can better alleviate creases in the first support region 1421, making the first support region 1421 easier to bend and improving its bending performance. In addition, the higher stiffness of the first film layer 111 in the region where the first bottom wall 1771 is located is beneficial to improving the impact resistance of the first film layer 111 in the region where the first bottom wall 1771 is located.

[0220] In some embodiments, both the first film layer 111 and the first support layer 141 are made of glass. Taking the first film layer 111 as an example, during the preparation of the first film layer 111, glass containing sodium ions can be provided first. Then, the glass is treated by ion exchange to generate compressive stress on the surface of the glass and tensile stress inside. In this way, when the glass is subjected to external force, the external force can first be offset by the surface compressive stress, thereby improving the glass's ability to withstand external forces, which helps prevent crack formation and improves the glass's bending resistance. For example, potassium ions can be used to replace sodium ions in the glass, thereby forming a potassium-rich compressive stress layer on the surface of the glass, while the part of the glass where no significant sodium-potassium ion exchange has occurred forms a tensile stress layer. Here, the strengthening depth can refer to the depth of ion exchange in the first film layer 111, that is, the thickness of the compressive stress layer.

[0221] In some embodiments, the surface compressive stress of the first film layer 111 is greater than the surface compressive stress of the first support layer 141, and the reinforcement depth of the first film layer 111 is greater than the reinforcement depth of the first support layer 141. This results in a larger compressive stress and a larger reinforcement depth of the first film layer 111, which helps the first film layer 111 to offset the tensile stress generated during folding, improve the bending resistance of the first film layer 111, and help alleviate cracking of the first film layer 111, thereby helping to mitigate damage to the first film layer 111 during folding.

[0222] In some embodiments, the display module 100 includes a third adhesive layer 163 bonded between the first support layer 141 and the second support layer 142.

[0223] The following describes the light-emitting device 152 provided in the embodiments of this application.

[0224] See Figure 16 In some embodiments, the light-emitting device 152 includes a first electrode 1521, a light-emitting functional portion 1523, and a second electrode 1522 stacked along a direction away from the substrate 151. The first electrode 1521 is disposed on the substrate 151, and a pixel defining layer 155 covers the end of the first electrode 1521, exposing the first electrode 1521 through a pixel opening 1551. The light-emitting functional portion 1523 of the light-emitting device 152 covers the sidewall of the pixel opening 1551 of the pixel defining layer 155 and the side of the pixel defining layer 155 facing away from the substrate 151. The light-emitting functional portion 1523 is located within the pixel opening 1551 and is in contact with the first electrode 1521.

[0225] For example, one of the first electrode 1521 and the second electrode 1522 can be an anode, and the other of the first electrode 1521 and the second electrode 1522 can be a cathode. This embodiment of the application uses the example of the first electrode 1521 being the anode and the second electrode 1522 being the cathode. The first electrode 1521 of the light-emitting device 152 can be connected to the pixel circuit through a via, so that the pixel circuit drives the light-emitting device 152 to emit light.

[0226] For example, the light-emitting functional unit 1523 includes a hole injection layer HIL, a hole transport layer HTL, an electron blocking layer EBL, a light-emitting material layer EML, a hole blocking layer HBL, an electron transport layer ETL, and an electron injection layer EIL stacked along a direction away from the substrate 151. The light-emitting functional unit 1523 may include a single light-emitting material layer EML, or a stacked light-emitting structure including multiple light-emitting material layers EML.

[0227] For example, there may be multiple light-emitting devices 152, and these multiple light-emitting devices 152 may be arranged in an array. The multiple light-emitting devices 152 may include a first light-emitting device, a second light-emitting device, and a third light-emitting device that emit different colors. The multiple light-emitting devices 152 include, but are not limited to, red light-emitting devices, green light-emitting devices, and blue light-emitting devices. In other examples, the multiple light-emitting devices 152 may also include white light-emitting devices.

[0228] For example, the boundary of the light-emitting device 152 is determined by the contact area between the light-emitting functional part 1523 and the first electrode 1521, that is, the boundary of the contact area between the light-emitting functional part 1523 and the first electrode 1521 can define the boundary of the light-emitting device 152.

[0229] See Figure 16 In some embodiments, the display panel 150 may further include a pixel defining layer 155, which is disposed on one side of the substrate 151. The pixel defining layer 155 surrounds and forms a plurality of pixel openings 1551, which are correspondingly disposed with a plurality of light-emitting devices 152. At least a portion of the light-emitting devices 152 is disposed within the corresponding pixel opening 1551.

[0230] See Figure 16 In some embodiments, the display panel 150 may include an encapsulation layer located on the side of the light-emitting device 152 away from the substrate 151. The encapsulation layer may employ thin film encapsulation (TFE) technology.

[0231] In some embodiments, the encapsulation layer may include a first encapsulation layer 1541 located on the side of the light-emitting device 152 facing away from the substrate 151.

[0232] For example, the material of the first encapsulation layer 1541 may include an inorganic material that is used to effectively block water and oxygen.

[0233] In some embodiments, the encapsulation layer may include a second encapsulation layer 1542, which is located on the side of the first encapsulation layer 1541 opposite to the substrate 151.

[0234] For example, the material of the second encapsulation layer 1542 may include an organic material, which is used to buffer the stress of the display panel 150.

[0235] In some embodiments, the encapsulation layer may include a third encapsulation layer 1543, which is located on the side of the second encapsulation layer 1542 away from the substrate 151, and the material of the third encapsulation layer 1543 may include an inorganic material.

[0236] For example, at least one of the first encapsulation layer 1541 and the third encapsulation layer 1543 is configured as an inorganic encapsulation layer 1545.

[0237] For example, the material of the third encapsulation layer 1543 may include inorganic materials that are used to effectively block water and oxygen.

[0238] See Figure 8 In some embodiments, the display module 100 further includes a shim 143, which is located between the display panel 150 of the display area 100a and the display panel 150 of the bonding area 101b1 when the second bending area 101b2 is in a bent state.

[0239] See Figure 8 In some embodiments, the display module 100 includes a third protective layer 123 located on one side of the display panel 150 of the second bending region 101b2.

[0240] See Figure 11 In some embodiments, a driver chip 194 and a connection pad 195 are disposed on the substrate 151 of the display panel 150. The connection pad 195 is used for bonding and connecting to the flexible circuit board.

[0241] For example, the display panel 150 can be an organic light-emitting diode (OLED) display panel, a micro organic light-emitting diode (Micro OLED) display panel, a light-emitting diode (LED) display panel, a quantum dot light-emitting diode (QLED) display panel, a mini light-emitting diode (MiniLED) display panel, a micro light-emitting diode (Micro LED) display panel, or a liquid crystal display (LCD) display panel, etc. This application embodiment uses an OLED display panel as an example for illustration.

[0242] The following describes the display device provided in the embodiments of this application.

[0243] This application provides a display device, which may include a display module 100. The display device may be an electronic paper device, mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, smart bracelet, smartwatch, supercomputer, navigator, wireless device, personal digital assistant (PDA), handheld or portable computer, GPS receiver / navigator, camera, MP4 video player, camcorder, game console, clock, calculator, television monitor, computer monitor, automotive display (e.g., odometer display), cockpit controller and / or display, camera view display (e.g., display of a rearview camera in a vehicle), electronic billboard or sign, projector, and other mobile or fixed terminals.

[0244] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0245] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0246] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display module, characterized in that, The display module includes a display area and a border area, and the display module includes: A display panel includes a substrate and at least one encapsulation dam located on one side of the substrate, the substrate being located in the display area and the bezel area, and the encapsulation dam being located in the bezel area and surrounding the outer periphery of the display area; A cover plate is disposed on the light-emitting side of the display panel and is located between the display area and the frame area; The cover plate includes a first film layer and a second film layer. The stiffness of the first film layer is greater than that of the second film layer. The second film layer is located on the side of the first film layer opposite to the display panel. The orthographic projection of the first film layer along the thickness direction of the substrate has a first outer boundary, and the orthographic projection of the display panel along the thickness direction of the substrate has a second outer boundary. In at least a portion of the frame area, the first outer boundary is located between the second outer boundary and the orthographic projection of the at least one encapsulation dam along the thickness direction of the substrate. The first outer boundary is located between the outer boundary of the orthographic projection of the second film layer along the thickness direction of the substrate and the orthographic projection of the at least one encapsulation dam along the thickness direction of the substrate.

2. The display module according to claim 1, characterized in that, The display panel includes a crack-resistant barrier located on one side of the substrate and in the bezel area; the orthographic projection of the crack-resistant barrier along the thickness direction of the substrate is located on the side of the at least one encapsulation barrier opposite to the display area along the thickness direction of the substrate. The orthographic projection of the anti-crack dam along the thickness direction of the substrate includes a third outer boundary on the side opposite to the display area. Within at least a portion of the border area, the first outer boundary lies between the third outer boundary and the orthogonal projection of the at least one encapsulation dam along the thickness direction of the substrate.

3. The display module according to claim 1, characterized in that, The border area includes a first sub-border area along one side of the first direction, and the first sub-border area includes a binding area; The border area includes a second sub-border area, a third sub-border area, and a fourth sub-border area. The second sub-border area and the first sub-border area are respectively located on both sides of the display area along the first direction, and the third sub-border area and the fourth sub-border area are respectively located on both sides of the display area along the second direction. The distance between the first outer boundary of the first sub-border area and the display area is a first distance, and the distance between the first outer boundary of at least one of the second, third, and fourth sub-border areas and the display area is a second distance. The first distance is greater than the second distance, and any two of the first direction, the second direction, and the thickness direction of the substrate intersect.

4. The display module according to any one of claims 1-3, characterized in that, The display module includes a first adhesive layer, which is bonded to the side of the first film layer facing the display panel. The thickness of the first adhesive layer is greater than the thickness of the first film layer; The cover plate includes a second adhesive layer, which is bonded to the side of the first film layer opposite to the display panel; the thickness of the first film layer is greater than the thickness of the second adhesive layer.

5. The display module according to any one of claims 1-3, characterized in that, The display module further includes a first support layer, which is located on the backlight side of the display panel; In at least a portion of the border area, the outer boundary of the first support layer's orthographic projection along the substrate thickness direction lies between the second outer boundary and the orthographic projection of the at least one encapsulation dam along the substrate thickness direction. The orthographic projection of the at least one encapsulation dam along the substrate thickness direction lies within the orthographic projection of the first support layer along the substrate thickness direction, and the orthographic projection of the at least one encapsulation dam along the substrate thickness direction lies within the orthographic projection of the second film layer along the substrate thickness direction. The distance between the outer boundary of the first support layer as an orthographic projection along the thickness direction of the substrate and the second outer boundary is less than the distance between the first outer boundary and the second outer boundary.

6. The display module according to any one of claims 1-3, characterized in that, The display module includes a second support layer, which is located on the backlight side of the display panel and between the display area and the frame area; The first outer boundary is located within the orthographic projection of the second support layer along the thickness direction of the substrate; The second support layer has a seventh outer boundary when projected along the thickness direction of the substrate. The seventh outer boundary is at least partially located on the side of the second outer boundary away from the display area. In the border area located on at least one side of the display area, the distance between the first outer boundary and the second outer boundary is greater than the distance between the seventh outer boundary and the second outer boundary.

7. The display module according to claim 6, characterized in that, The ratio between the thickness of the first film layer and the thickness of the second support layer ranges from [0.1, 0.6].

8. The display module according to any one of claims 1-3, characterized in that, The display module includes an opening area, the display area surrounds at least a portion of the outer periphery of the opening area, the display panel has a first through hole, the orthographic projection of the first through hole along the thickness direction of the substrate coincides with the opening area, and the first film layer covers the opening area; The display module includes a second support layer located on the backlight side of the display panel, and the second support layer has a second through hole, which is at least partially located in the opening area. The orthographic projection of the second through hole along the thickness direction of the substrate is located within the orthographic projection of the first through hole along the thickness direction of the substrate.

9. The display module according to any one of claims 1-3, characterized in that, The display panel includes a filter layer located between the display panel and the cover plate, and the first outer boundary surrounds the outer periphery of the filter layer as projected along the thickness direction of the substrate.

10. The display module according to any one of claims 1-3, characterized in that, The second film layer includes a first protective layer. The first outer boundary is located within the orthographic projection of the first protective layer along the thickness direction of the substrate; The display module includes a second light-shielding layer, which is at least partially located in the frame area and surrounds the outer periphery of the display area. The distance between the outer boundary of the first protective layer as an orthographic projection along the thickness direction of the substrate and the display area is greater than or equal to the distance between the outer boundary of the second light-shielding layer as an orthographic projection along the thickness direction of the substrate and the display area.

11. The display module according to any one of claims 1-3, characterized in that, The second film layer includes a coating layer disposed on the side of the first film layer opposite to the display panel and covering the sidewall of the first film layer; The coating layer includes a buffer layer and a hardening layer. The hardening layer is located on the side of the buffer layer away from the display panel, and the elastic modulus of the hardening layer is greater than that of the buffer layer.

12. The display module according to any one of claims 1-3, characterized in that, The display module includes a second light-shielding layer, which is at least partially located in the frame area and surrounds the outer periphery of the display area. The first outer boundary is located within the orthographic projection of the second light-shielding layer along the thickness direction of the substrate; The display module includes a second support layer located on the backlight side of the display panel; the outer boundary of the second support layer along the thickness direction of the substrate is disposed around the outer periphery of the second light-shielding layer along the thickness direction of the substrate.

13. The display module according to claim 12, characterized in that, The border area includes a first sub-border area, a second sub-border area, a third sub-border area, and a fourth sub-border area. The first sub-border area includes a bonding area. The second sub-border area and the first sub-border area are respectively located on both sides of the display area along a first direction. The third sub-border area and the fourth sub-border area are located on both sides of the display area along a second direction. The orthographic projection of the second light-shielding layer along the thickness direction of the substrate has a second inner boundary facing the display area. The distance between the second inner boundary located in at least one of the second sub-border area, the third sub-border area, and the fourth sub-border area and the display area is less than the distance between the second outer boundary and the display area. Any two of the first direction, the second direction, and the thickness direction of the substrate intersect.

14. The display module according to any one of claims 1-3, characterized in that, The display panel includes an inorganic encapsulation layer, which is located on the side of the at least one encapsulation dam away from the substrate. The outer boundary of the inorganic encapsulation layer, as projected along the thickness direction of the substrate, is located on the side of the at least one encapsulation dam, as projected along the thickness direction of the substrate, away from the display area. The border area includes a first sub-border area along one side of a first direction, and the first sub-border area includes a bonding area; the first outer boundary located in the first sub-border area is located within the orthographic projection of the inorganic encapsulation layer along the thickness direction of the substrate; the first direction intersects with the thickness direction of the substrate.

15. The display module according to any one of claims 1-3, characterized in that, The display panel includes a gate driving circuit and signal traces, the gate driving circuit and signal traces are located in the bezel area, and the gate driving circuit is located on both sides of the display area along the second direction; The orthographic projection of at least one of the gate driving circuit and the signal trace along the thickness direction of the substrate is located within the orthographic projection of the first film layer along the thickness direction of the substrate.

16. The display module according to any one of claims 1-3, characterized in that, The display module includes a second support layer, which is located on the backlight side of the display panel; The display module has a first bending area and non-bending areas located on opposite sides of the first bending area. The bending axis of the display module is located in the first bending area. The second support layer includes a first support area and a second support area located on both sides of the first support area in a first direction. The first support area is located in the first bending area. The stiffness of the first support area is less than that of the second support area. The first direction intersects with the thickness direction of the substrate. The first film layer has a first groove on at least one side surface along the thickness direction of the display module. The first groove is located at least in the first bending area. The first groove has a first bottom wall and a first side wall connected to the first bottom wall. The width of the first support area in the first direction is smaller than the width of the first bottom wall in the first direction.

17. The display module according to claim 16, characterized in that, A portion of the first sidewall is located in the first bending area, and another portion of the first sidewall is located in the non-bending area. The sum of the widths of the first support area and the two second support areas in the first direction is greater than the width of the first bottom wall in the first direction.

18. The display module according to claim 16, characterized in that, The first film layer has a tensile strength σ1 in the region where the first bottom wall is located. The width of the first bottom wall in the first direction is K. The first bending region includes an arc apex region, the bending axis is located in the arc apex region, and the bending radius of the arc apex region is R0. K, R 0、 E, t, and σ1 satisfy: 0.9σ1≥R0[1-K / (2πR0)]*Et / 2≥0.5σ1; Where E is the elastic modulus of the first film layer in the region of the first bottom wall, and t is the thickness of the first film layer in the region of the first bottom wall.

19. The display module according to claim 16, characterized in that, The stiffness of the first membrane layer in the region where the first bottom wall is located is greater than the stiffness of the first support region.

20. A display module, characterized in that, The display module includes a display area and a border area, and the display module includes: The display panel includes a substrate and an encapsulation dam located on one side of the substrate. The substrate is located in the display area and the bezel area. The encapsulation dam is located in the bezel area and surrounds the outer periphery of the display area. A cover plate is disposed on the light-emitting side of the display panel and is located between the display area and the frame area; The cover plate includes a first film layer, the first film layer having a first outer boundary when projected orthogonally along the thickness direction of the substrate, and the first outer boundary is located on the side of the encapsulation dam away from the display area in at least a portion of the frame area.

21. A display device, characterized in that, Includes the display module described in any one of claims 1-20 above.

Images