Flexible display cover plate, display module and display device

Abstract

Embodiments of the present application provide a flexible display cover plate, a display module and a display device. The flexible display cover plate comprises a first cover plate layer, an adhesive layer and a second cover plate layer arranged in sequence along a first direction, the first cover plate layer completely covering the second cover plate layer; the first cover plate layer comprises a visible area, an ink area and a non-ink area, the ink area and the non-ink area being located at the periphery of the visible area; wherein the non-ink area is arranged on a first side edge of the first cover plate layer to expose a first area of the second cover plate layer. The technical solution of the present application can check the conditions of each component in the flexible display cover plate in time.

Description

Technical Field

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

[0002] With the advancement of display technology, flexible display devices, with their deformable and foldable characteristics, have become display devices with extremely wide applications in the current display field. Flexible display devices include flexible display cover plates, which have strong strength and impact resistance, and can protect the display device from external damage.

[0003] Current flexible display cover plates typically consist of transparent glass or ultra-thin glass. During the assembly of flexible display cover plates, ultra-thin glass is very prone to breakage due to its thinness; furthermore, during laser cutting of flexible display cover plates, there is a high possibility of cutting into the ultra-thin glass, thereby affecting the display effect of the display device. Summary of the Invention

[0004] In view of the above problems, this application provides a flexible display cover, a display module, and a display device, which can observe the status of each component in the flexible display cover in a timely manner.

[0005] A first aspect of this application provides a flexible display cover plate, comprising: a first cover plate layer, an adhesive layer, and a second cover plate layer arranged sequentially along a first direction, wherein the first cover plate layer completely covers the second cover plate layer; the first cover plate layer includes a visible area, an ink area, and a non-ink area, wherein the ink area and the non-ink area are located around the visible area; wherein the non-ink area is disposed on a first side of the first cover plate layer to expose a first area of ​​the second cover plate layer.

[0006] In this embodiment, the flexible display cover plate includes a first cover layer, a second cover layer, and an adhesive layer connecting the two. The first cover layer covers the second cover layer. The first cover layer includes a visible area and ink-filled and non-ink-filled areas surrounding the visible area. The non-ink-filled areas are located on a first side of the first cover layer, and the second cover layer includes an exposed first area. The first area is not covered by the ink-filled areas due to the presence of the non-ink-filled areas; that is, the first area exists solely because of the presence of the non-ink-filled areas. By providing non-ink-filled areas on the first side, which are opposite to the first area of ​​the second cover layer, the bonding effect between the second and first cover layers can be directly observed. This also allows for timely detection of any cracks in the second cover layer and avoids cutting into the second cover layer during subsequent processing.

[0007] In one possible implementation, the first side includes a first sub-side. When the non-ink area is disposed on the first sub-side, the dimension L1 of the non-ink area in the second direction satisfies: 0.5mm≤L1≤20mm, and the dimension L2 of the first area in the third direction satisfies: 0<L2≤1mm. The first sub-side is parallel to the second direction, the second direction is perpendicular to the first direction, and the third direction is perpendicular to both the first and second directions.

[0008] In this embodiment, the non-ink area is located on the first side of the first cover plate layer, that is, on the four sides of the first cover plate layer. When the non-ink area is located on the first sub-side parallel to the second direction, by making the size of the non-ink area in the second direction 0.5mm-20mm, the condition of the second cover plate layer can be observed in a timely manner through the non-ink area of ​​this size. In addition, the first region of the second cover plate layer exists because of the presence of the non-ink area, that is, the first region can be directly seen through the non-ink area. The size L2 of the first region in the third direction satisfies: 0<L2≤1mm, that is, the size of the observed first region in the third direction is not greater than 1mm. This allows the specific condition of the second cover plate layer to be determined without affecting the function of the second cover plate layer as a display area due to excessive exposure.

[0009] In one possible implementation, the first side includes a second sub-side. When the non-ink area is disposed on the second sub-side, the dimension L3 of the non-ink area in the third direction satisfies: 0.5mm≤L3≤20mm, and the dimension L4 of the first area in the second direction satisfies: 0<L4≤1mm. The second sub-side is parallel to the third direction.

[0010] In this embodiment, the non-ink areas are disposed on the four sides of the first cover plate layer. The first side of the first cover plate layer has a first sub-side and a second sub-side, with the second sub-side perpendicular to the first sub-side. When the non-ink areas are disposed on the second sub-side, by limiting the corresponding dimensions, the normal function of the second cover plate layer can be ensured while still allowing for observation.

[0011] In one possible implementation, the non-ink areas include a plurality of such areas, which are arranged at equal intervals.

[0012] In this embodiment, by setting multiple non-ink areas with equal spacing, the condition of the second cover plate layer can be tracked more comprehensively.

[0013] In one possible implementation, when the non-ink areas are located on the first sub-side, in the second direction, the ratio of the size of the plurality of non-ink areas along the first sub-side to the size of the first sub-side is 0.1-0.5.

[0014] In one possible implementation, when the non-ink areas are disposed on the second sub-side, in the third direction, the ratio of the size of the plurality of non-ink areas along the second sub-side to the size of the second sub-side is 0.1-0.5.

[0015] In this embodiment, if too many non-ink areas are set, they may be visible to users and affect their user experience. By setting the size ratio of the non-ink area to the side where it is located to 0.1-0.5, the non-ink area can play its corresponding role, and the user experience can be prevented from being affected by too many non-ink areas.

[0016] In one possible implementation, the non-ink area is located at the minimum side spacing between the first cover layer and the second cover layer.

[0017] In this embodiment, the second cover layer includes a first area exposed due to the presence of a non-ink area. That is, the first cover layer has both ink and non-ink areas around its perimeter. The second cover layer, opposite the first cover layer, has a perimeter consisting of the first area and a second area covered by the ink area. During subsequent processing, the flexible display cover plate is cut, but the second cover layer cannot be cut. Therefore, by setting a non-ink area at the point of minimum side spacing between the first and second cover layers, the cutting process of the second cover layer can be observed more precisely.

[0018] In one possible implementation, the non-ink area is located near the apex of the first cover plate layer.

[0019] In this embodiment, the non-ink area is used to observe the breakage of the second cover plate layer and to accurately track subsequent cutting. The apex of the second cover plate layer is more prone to breakage than the center. By limiting the position of the non-ink area to be close to the apex of the first cover plate layer, it is easier to observe the side positions of the second cover plate layer.

[0020] In one possible implementation, the flexible display cover has a bending area, and the non-ink area avoids the bending area.

[0021] In this embodiment, the shielding structure at the edge of the bending area moves as the flexible display cover plate bends. By setting the non-ink area away from the bending area, the possibility of the non-ink area being exposed can be reduced.

[0022] In one possible implementation, the shape of the notch includes at least one of square, circular, elliptical, rhomboid, and trapezoidal.

[0023] In this embodiment, by making the shape of the non-ink area include at least one of square, circle, ellipse, rhombus, and trapezoid, a suitable notch shape can be selected according to actual needs.

[0024] In one possible implementation, the first side includes a cable exit side for connecting the cable exit area of ​​the display device.

[0025] In this embodiment, the first side includes a cable exit side, which is used to connect with the cable exit area of ​​the display device to ensure the normal operation of the display device.

[0026] In one possible implementation, the first side includes a non-outgoing side, and the distance between the non-outgoing side and the side of the second cover plate layer is 0.05mm-1mm.

[0027] In this embodiment, the second cover layer is disposed below the first cover layer and is completely covered by the first cover layer. The first side includes an outgoing side and a non-outgoing side, wherein the outgoing side is used to connect the outgoing area of ​​the display device. By maintaining the side spacing between the non-outgoing side and the second cover layer at 0.05mm-1mm, the first cover layer can effectively protect the second cover layer and reduce the risk of the second cover layer breaking.

[0028] In one possible implementation, the second cover layer comprises ultrathin glass.

[0029] A second aspect of this application provides a display module that includes the flexible display cover plate described in any embodiment of the first aspect of this application.

[0030] In one possible implementation, the display module further includes a display substrate, the flexible display cover is disposed on the display substrate, and the side of the second cover layer away from the first cover layer is attached to the display substrate.

[0031] A third aspect of this application provides a display device, including the display module described in any embodiment of the second aspect of this application. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application 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 the drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a flexible display cover plate according to one embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the structure of a flexible display cover plate according to another embodiment of this application;

[0035] Figure 3 This is a structural schematic diagram of a flexible display cover plate according to another embodiment of this application;

[0036] Figure 4 This is a structural schematic diagram of a flexible display cover plate according to another embodiment of this application;

[0037] Figure 5 This is a structural schematic diagram of a flexible display cover plate according to another embodiment of this application;

[0038] Figure 6 This is a schematic diagram of the structure of a flexible display cover plate according to another embodiment of this application;

[0039] Figure 7 This is a structural schematic diagram of a flexible display cover plate according to another embodiment of this application;

[0040] Figure 8 This is a schematic diagram of the structure of a flexible display cover plate according to another embodiment of this application;

[0041] Figure 9 A schematic diagram of the structure of a flexible display cover plate according to another embodiment of this application.

[0042] Figure 10 This is a schematic diagram of the structure of a display module according to one embodiment of this application;

[0043] Figure 11 This is a schematic diagram of the structure of a display module according to another embodiment of this application.

[0044] Figure label:

[0045] 10-Flexible display cover, 20-Display substrate, 22-Display layer, 23-Back film, 30-Display module, 11-First cover layer, 12, 21-Adhesive layer, 13-Second cover layer, 111-First side, 112-Ink area, 113-Non-Ink area, 15-Visible area, 131-First region, 1111-First sub-side, 1112-Second sub-side, 1113-Third sub-side, 1114-Fourth sub-side, 1115-Outgoing wire side, 132-Second side, 221-Operable area, 31-Outgoing wire area;

[0046] X - First direction, Y - Second direction, Z - Third direction. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0048] The "range" disclosed in this application is defined by a lower limit and an upper limit. A given range is defined by selecting a lower limit and an upper limit, which define the boundaries of a specific range. Ranges defined in this way include endpoint values ​​and can be arbitrarily combined; that is, any lower limit can be combined with any upper limit to form a range. For example, if ranges of 60-120 and 80-110 are listed for a specific parameter, it is also expected that ranges of 60-110 and 80-120 are also included. Furthermore, if the minimum range values ​​are listed as 1 and 2, and the maximum range values ​​are listed as 3, 4, and 5, then the following ranges are all expected: 1-3, 1-4, 1-5, 2-3, 2-4, and 2-5. In this application, unless otherwise stated, the numerical range "ab" represents a shortened representation of any combination of real numbers between a and b, where a and b are real numbers. For example, the numerical range "0-5" means that all real numbers between "0-5" have been listed herein; "0-5" is simply a shortened representation of these numerical combinations. Furthermore, when a parameter is described as an integer greater than or equal to 2, it is equivalent to disclosing that the parameter is, for example, an integer such as 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc.

[0049] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined with each other to form new technical solutions.

[0050] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0051] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” and “one or more” refer to one, two, or more than two. The term “and / or” is used to describe the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can indicate: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0052] References to "one embodiment," "some embodiments," "one example," or "some examples" used in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0053] The flexible display cover plate provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0054] Advances in display technology have enabled smart terminal products to have foldable functionality, hence these products are also called flexible terminal products. Foldable flexible terminal products, such as smartphones and tablets, include a flexible display cover plate in their structure. This flexible display cover plate has a foldable function, allowing the entire flexible terminal product to be bent or folded.

[0055] Ultra-thin glass is widely used in flexible display cover plates due to its good flexibility, smooth feel, and excellent uniformity. Generally, after applying ultra-thin glass to a flexible display cover plate, the entire cover plate needs to be laser-cut to complete subsequent product manufacturing and assembly. However, during the laser cutting process of the flexible display cover plate, due to the requirements of the manufacturing process, the cutting edge is very close to the ultra-thin glass, making it very easy to cut into the ultra-thin glass, causing damage and affecting the display effect of the display device.

[0056] In view of this, this application provides a flexible display cover that allows for timely observation of the condition of each component within the flexible display cover and more precise tracking of the cutting results.

[0057] Figure 1 This is a schematic diagram of the structure of a flexible display cover plate according to one embodiment of this application, as shown below. Figure 1 As shown, the flexible display cover 10 includes a first cover layer 11, an adhesive layer 12, and a second cover layer 13 arranged sequentially along the first direction X.

[0058] The first direction X is the height direction of the flexible display cover plate 10, which can also be referred to as the thickness direction of the flexible display cover plate 10. When the thickness of the first cover layer 11, the second cover layer 13, etc., is mentioned below, it refers to their dimensions in the first direction X.

[0059] The material of the first cover layer 11 can be polyimide (PI), polyethylene terephthalate (PET), etc. The dimension of the first cover layer 11 in the first direction X can be 0.01mm-0.2mm.

[0060] Specifically, in the first direction X, the size of the first cover layer 11 can be 0.01mm, 0.05mm, 0.1mm, 0.15mm, 0.2mm or any value within the above range.

[0061] The adhesive layer 12 can be made of a commonly used adhesive material in flexible display devices. For example, it can be an optically clear adhesive (OCA) film.

[0062] It should be understood that an adhesive layer is required between different film layers to achieve bonding. This adhesive layer may or may not be indicated in the accompanying drawings, and this does not constitute a limitation of this application.

[0063] The material of the second cover layer 13 can be ultra-thin glass. Specifically, the ultra-thin glass can be soda-lime glass, aluminosilicate glass, sodium aluminum silicate glass, lithium aluminum silicate glass, or phosphorus aluminum silicate glass. In the first direction X, the size of the second cover layer 13 can be 0.01mm-0.1mm.

[0064] Specifically, in the first direction X, the size of the second cover layer 13 can be 0.01mm, 0.03mm, 0.05mm, 0.08mm, 0.1mm or any value within the above range.

[0065] The first cover layer 11 completely covers the second cover layer 13.

[0066] Complete coverage means that the first cover layer 11 completely covers the second cover layer 13, without omitting any part of the second cover layer 13.

[0067] Figure 2 This is a structural schematic diagram of a flexible display cover plate according to another embodiment of this application. Figure 2 and Figure 1 As shown, the first cover plate layer 11 includes a view area 15 (VA area), an ink area 112 and a non-ink area 113, with the ink area 112 and the non-ink area 113 located around the view area 15.

[0068] The area around the visible area 15 refers to the region of the first cover layer 11 remaining near the first side 111 after removing the visible area 15. The area around the visible area 15, i.e., the other area of ​​the first cover layer 11 excluding the visible area 15, is used to set the ink area 112 and the non-ink area 113. This application does not limit the specific proportion of the surrounding area and the visible area 15 occupying the first cover layer 11; the setting range of the visible area 15 and the ink area 112, which is known in the industry, can be used.

[0069] It should be understood that the non-ink area 113 is located in the other parts of the first cover plate layer 11 except for the visible area 15, that is, the non-ink area 113 cannot overlap with the visible area 15 in terms of area.

[0070] The non-ink area 113 is disposed on the first side 111 of the first cover plate layer 11 to expose the first area 131 of the second cover plate layer 13.

[0071] It should be understood that the non-ink area 113 is located on the first side 111 of the first cover plate layer 11, meaning that the non-ink area 113 has a portion of the first side 111 as its edge. Therefore, if the following mentions that the non-ink area 113 is located on the first side 111, it actually means that the non-ink area 113 has a portion of the first side 111 as its edge, thus forming the non-ink area 113.

[0072] The first side 111 of the first cover plate layer 11 refers to the four sides of the first cover plate layer 11. Non-ink areas 113 are formed on the first side 111 of the first cover plate layer 11, meaning the non-ink areas 113 are located on these four sides. Unless otherwise mentioned below, the first side 111 refers to the four sides of the first cover plate layer 11, and the second side refers to the four sides of the second cover plate layer 13.

[0073] The visible area 15 is surrounded by an ink area 112 and a non-ink area 113 disposed on the first side 111. The area on the second cover layer 13 corresponding to the perimeter of the first visible area 15 includes a first area 131 corresponding to the non-ink area 113 and a second area covered by the ink area 112. In other words, the first area 131 exists because of the presence of the non-ink area 113. Since the non-ink area 113 is disposed on the first side 111 of the first cover layer 11, the first area 131 also exists on the second side 132 of the second cover layer 13.

[0074] The periphery of the second cover layer 13, corresponding to the periphery of the visible area 15, includes a second region covered by the ink area 112 and a first region 131 existing due to the presence of the non-ink area 113. Since the non-ink area 113 is created to expose the first region 131, and the area of ​​the first cover layer 11 is larger than the area of ​​the second cover layer 13, the area of ​​the non-ink area 113 is not less than the area of ​​the first region 131 within a certain tolerance range.

[0075] In the above scheme, the flexible display cover plate 10 includes a first cover layer 11, a second cover layer 13, and an adhesive layer 12 connecting the two. The first cover layer 11 includes a visible area 15 and ink areas 112 and non-ink areas 113 disposed around the visible area 15. The non-ink areas 113 are located on the first side 111 of the first cover layer 11, and the second cover layer 13 includes an exposed first area 131. The first area 131 is not covered by the ink areas 112 due to the presence of the non-ink areas 113; that is, the first area 131 exists solely because of the presence of the non-ink areas 113. By setting the non-ink areas 113 on the first side 111 of the first cover layer 11, opposite to the first area 131 of the second cover layer 13, the bonding effect between the second cover layer 13 and the first cover layer 11 can be directly observed. It also allows for timely detection of any cracks in the second cover layer 13 and avoids cutting the second cover layer 13 during subsequent processing.

[0076] Please continue to refer to Figure 2 In one possible implementation, the first side 111 includes a first sub-side 1111. When the non-ink area 113 is disposed on the first sub-side 1111 of the first cover plate layer 11, the dimension L1 of the non-ink area 113 in the second direction Y satisfies: 0.5mm≤L1≤20mm, and the dimension L2 of the first region 131 in the third direction Z satisfies: 0<L2≤1mm; wherein, the first sub-side 1111 is parallel to the second direction Y, the second direction Y is perpendicular to the first direction X, and the third direction Z is perpendicular to the first direction X and the second direction Y.

[0077] The first direction X is the thickness direction of the flexible display cover plate 10, that is, the thickness direction of the first cover plate layer 11. The second direction Y is the length direction of the first cover plate layer 11. The second direction Y is perpendicular to the first direction X, that is, the plane containing the second direction Y is perpendicular to the plane containing the first direction X. The first sub-side 1111 is parallel to the second direction Y. Therefore, the first sub-side 1111 can also be referred to as the length of the first cover plate layer 11, and the second direction Y can also be referred to as the length direction of the first cover plate layer 11 or the flexible display cover plate 10.

[0078] Similarly, the third direction Z is perpendicular to the first direction X and the second direction Y. That is, the plane containing the third direction Z is perpendicular to the plane containing the first direction X and the plane containing the second direction Y. In other words, the first direction X, the second direction Y, and the third direction Z constitute a three-dimensional coordinate system. Furthermore, since the third direction Z is the width direction of the first cover layer 11, it can also be referred to as the width direction of the flexible display cover 10.

[0079] It should be understood that the above-mentioned length and width directions are only conclusions drawn in conjunction with the accompanying drawings and the default definitions of length and width in a square, and do not constitute a limitation on this application. For example, if the dimension of the first cover layer 11 in the second direction Y is smaller than the dimension in the third direction Z, then the second direction Y can also be referred to as the width direction of the first cover layer 11.

[0080] The first side 111 includes four sides. If mentioned below, the first sub-side 1111 is the side of the first side 111 in the second direction Y, and the second sub-side 1112 is the side of the first side 111 in the third direction Z. Since the second direction Y is perpendicular to the third direction Z, the second sub-side 1112 is perpendicular to the first sub-side 1111.

[0081] The non-ink area 113 is located on the first side 111 of the first cover plate layer 11. The first region 131 of the second cover plate layer 13 is exposed due to the opening of the non-ink area 113. Therefore, the first region 131 is located on the second side 132 of the second cover plate layer 13.

[0082] In the above scheme, the non-ink area 113 is set on the first side 111, that is, on the four sides of the first cover layer 11. When the non-ink area 113 is set on the first sub-side 1111 parallel to the second direction Y, the size of the non-ink area 113 in the second direction Y is 0.5mm-20mm. Through the non-ink area 113 of this size, the condition of the second cover layer 13 can be observed in a timely manner. In addition, the first region 131 of the second cover layer 13 exists because of the presence of the non-ink area 113, so that the size L2 of the first region 131 in the third direction Z satisfies: 0<L2≤1mm, that is, the size of the observed first region 131 in the third direction Z is not greater than 1mm. In this way, the specific condition of the second cover layer 13 can be determined without affecting the function of the second cover layer 13 as a display area due to excessive exposure.

[0083] Specifically, the dimension L1 of the non-ink area 113 in the second direction Y can be 0.5mm, 3.5mm, 10.6mm, 15mm, 20mm, or any value within the above range. The dimension L2 of the first area 131 in the third direction Z can be 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1mm, or any value within the above range.

[0084] Figure 3 This is a schematic diagram of the structure of a flexible display cover plate according to another embodiment of this application. Figure 3As shown, in some embodiments, the first side 111 includes a second sub-side 1112. When the non-ink area 113 is disposed on the second sub-side 1112 of the first cover plate layer 11, the dimension L3 of the non-ink area 113 in the third direction Z satisfies: 0.5mm≤L3≤20mm, the dimension L4 of the first region 131 in the second direction Y satisfies: 0<L4≤1mm, and the second sub-side 1112 is parallel to the third direction Z.

[0085] As described above, the second sub-side 1112 is the first side 111 of the first cover plate layer 11 in the third direction Z.

[0086] In the above scheme, the non-ink area 113 is disposed on the four first sides 111 of the first cover plate layer 11. The first side 111 has a first sub-side 1111 and a second sub-side 1112, and the second sub-side 1112 is perpendicular to the first sub-side 1111. When the non-ink area 113 is disposed on the second sub-side 1112, by limiting the corresponding size, the second cover plate layer 13 can be observed while also being protected.

[0087] Specifically, the dimension L3 of the non-ink area 113 in the third direction Z can be 0.5mm, 5mm, 10.2mm, 16mm, 20mm or any value within the above range. The dimension L4 of the first region 131 in the second direction Y can be 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1mm or any value within the above range.

[0088] It should be understood that the dimensions of the first cover layer 11 in the second direction Y and the third direction X are generally 50-500 mm, and the dimensions of the non-ink area 113 in the second direction Y and the third direction Y are as described above. Therefore, the accompanying drawings of this application are only for the purpose of showing the size of the non-ink area 113 by enlarging its dimensions, and the accompanying drawings will not cause any limitation on the actual product.

[0089] Please refer to Figure 2 and Figure 3 The first cover plate layer 11 has four sides 111, namely a first sub-side 1111, a second sub-side 1112, a third sub-side 1113, and a fourth sub-side 1114. Since the first sub-side 1111 and the third sub-side 1113 are parallel, and the second sub-side 1112 and the fourth sub-side 1114 are parallel, the non-ink areas 113 of the third sub-side 1113 and the fourth sub-side 1114 are set in the same way as the first sub-side 1111 and the second sub-side 1112, respectively, which will not be described again here.

[0090] Figure 4 This is a structural schematic diagram of a flexible display cover plate according to another embodiment of this application. Figure 4As shown, in some embodiments, the non-ink area 113 includes a plurality of non-ink areas 113 arranged at equal intervals.

[0091] The non-ink areas 113 are arranged at equal intervals, which means that the distance between the non-ink areas 113 and the adjacent non-ink areas 113 is equal.

[0092] In the above scheme, by setting multiple non-ink areas 113 and setting multiple non-ink areas 113 at equal intervals, the condition of the second cover layer 13 can be tracked more comprehensively.

[0093] Please continue to refer to this. Figure 2 and Figure 3 In some embodiments, when the non-ink areas 113 are disposed on the first sub-side 1111, in the second direction Y, the ratio of the size of the plurality of non-ink areas 113 along the first sub-side 1111 to the size of the first sub-side 1111 is 0.1-0.5; when the non-ink areas 113 are disposed on the second sub-side 1112, in the third direction Z, the ratio of the size of the plurality of non-ink areas 113 along the second sub-side 1112 to the size of the second sub-side 1112 is 0.1-0.5.

[0094] The dimension of the non-ink area 113 along the first sub-side 1111 refers to the dimension of the non-ink area 113 on the first sub-side 1111, that is, the dimension where the non-ink area 113 and the first sub-side 1111 intersect. Similarly, the dimension of the non-ink area 113 along the second sub-side 1112 refers to the dimension of the non-ink area 113 on the second sub-side 1112, that is, the dimension where the non-ink area 113 and the second sub-side 1112 intersect.

[0095] In the above solution, if too many non-ink areas 113 are set, they may be visible to users and affect their user experience. By setting the size ratio of the non-ink area 113 to the side where it is located to 0.1-0.5, the non-ink area 113 can play its corresponding role, and the user experience can be prevented from being affected by too many non-ink areas 113.

[0096] Specifically, the ratio of the size of the non-ink area 113 to the size of its side can be 0.1, 0.15, 0.25, 0.4, 0.5 or any value within the above range.

[0097] In some embodiments, the non-ink area 113 is located at the minimum side spacing between the first cover layer 11 and the second cover layer 13.

[0098] It should be noted that, in the first direction X, the first cover layer 11 and the second cover layer 13 are bonded together by the adhesive layer 12, and the first cover layer 11 covers the second cover layer 13. Therefore, in the first direction X, the orthographic projection of the first cover layer 11 covers the orthographic projection of the second cover layer 13. That is, in the first direction X, there is no lateral spacing between the first cover layer 11 and the second cover layer 13. Unless otherwise mentioned below, the lateral spacing between the first cover layer 11 and the second cover layer 13 refers to the lateral spacing between them on the same side in the second direction Y or the third direction Z.

[0099] Figure 5 and Figure 6 This is a structural schematic diagram of a flexible display cover plate according to some other embodiments of this application.

[0100] like Figure 5 As shown, when the second cover layer 13 is placed completely parallel to the first cover layer 11 (completely parallel means that the first cover layer 11 and the second cover layer 13 are parallel in the second direction Y and also parallel in the third direction Z), there are four different side distances L5, L6, L7 and L8 between the first side 111 of the first cover layer 11 and the second side 132 of the second cover layer 13. Figure 5 As shown, among L5, L6, L7 and L8, L7 is the smallest, so the non-ink area 113 is set on the first sub-side 1111 corresponding to L7. If L6 is the smallest, then the non-ink area 113 is set on the second sub-side 1112 of the first cover plate layer 11 corresponding to L6, and the same applies to L5 and L8.

[0101] like Figure 6 As shown, when the second cover layer 13 is placed at an angle below the first cover layer 11, there are also four different side distances L between the first side 111 of the first cover layer 11 and the second side 132 of the second cover layer 13. 61 L 62 L 63 and L 64 .like Figure 6 As shown, L 61 L 62 L 63 and L 64 L 61 If the minimum value is reached, the non-ink area is set at L. 61 On the corresponding fourth sub-side 1114. If L 62 If the minimum value is reached, then the non-ink area 113 is set at L. 62 On the first sub-side 1111 of the corresponding first cover plate layer 11, L 63 and L 64 Similarly.

[0102] It should be understood that the side spacing here refers to the shortest distance between the first side 111 of the first cover plate layer 11 and the second side 132 of the second cover plate layer 13.

[0103] In this embodiment, the second cover layer 13 includes a first region 131 exposed due to the presence of the non-ink region 113. During the processing of the flexible display cover 10, the front of the flexible display cover 10 is cut, but the second cover layer 13 cannot be cut. Therefore, by setting the non-ink region 113 at the point where the side spacing between the first cover layer 11 and the second cover layer 13 is minimized, the situation of the second cover layer 13 during cutting can be observed more accurately.

[0104] Please continue to refer to Figure 5 and Figure 6 In some embodiments, the non-ink area 113 is located near the apex of the first cover plate layer 11.

[0105] A vertex is the point where the two adjacent sides 111 of the first cover plate layer 11 intersect. The first cover plate layer 11 has four vertices.

[0106] The non-ink area 113 is close to the vertex, but it may be some distance away from the vertex. However, this distance must be less than the distance between the non-ink area 113 and the middle of the first cover plate layer 11. Within a certain tolerance range, it may also coincide with the vertex.

[0107] In the above scheme, the non-ink area 113 is used to observe the breakage of the second cover plate layer 13 and to accurately track subsequent cutting. The end points of the second cover plate layer 13 are more prone to breakage than the center. By limiting the position of the non-ink area 113 to the vertex near the first cover plate layer 11, it is easier to observe the side positions of the second cover plate layer 13.

[0108] In one possible implementation, the flexible display cover 10 has a bending area, and the non-ink area 113 avoids the bending area.

[0109] In the above solution, the flexible display cover 10 has a folding function, and a bending area is provided on the flexible display cover 10 to fold the flexible display cover 10. The shielding structure at the edge of the bending area moves during the bending process of the flexible display cover 10. By setting the non-ink area 113 to avoid the bending area, the exposure risk of the non-ink area 113 can be reduced.

[0110] In some embodiments, the shape of the non-ink area 113 includes at least one of square, circular, elliptical, rhomboid, and trapezoidal shapes.

[0111] Figure 7-8 This is a structural schematic diagram of a flexible display cover plate according to another embodiment of this application. Figure 7-8 As shown, the shape of the non-ink area 113 can be Figure 8 The trapezoid in the middle can also be Figure 7 The oval shape in the middle Figure 6 The shape of the non-ink area 113 is square. Of course, it can also be round, rhomboid, etc. As long as it can serve the purpose of observing the second cover layer 13, this application does not impose any special limitations on the shape of the non-ink area 113.

[0112] In the above scheme, by making the shape of the non-ink area 113 include at least one of square, circle, ellipse, rhombus and trapezoid, a suitable notch shape can be selected according to actual needs.

[0113] Figure 9 This is a schematic diagram of the structure of a flexible display cover plate according to another embodiment of this application. It should be understood that, in order to more comprehensively observe the second cover plate layer 13, the non-ink area 113 can be provided only on one side of the first side 111, or the non-ink area 113 can be provided on all four sides 111 of the first cover plate layer 11. In actual production, the non-ink area 113 can also be provided at any position on the first side 111 as needed for observation. Figure 8 As shown, square non-ink areas 113 are provided on the four first sides 111 of the first cover layer 11 to allow for a more comprehensive observation of the second cover layer 13.

[0114] In some embodiments, the first side 111 includes a cable exit side 1115 for connecting the cable exit area 31 of the display device.

[0115] In the actual production process of the display device, the precursor of the flexible display cover plate 10 needs to be laser-cut to obtain the flexible display cover plate 10 described in this application, such as... Figure 9 The laser cutting lines are MM, NN, and KK. During this production process, based on the production requirements of some display devices, a certain side of the first cover layer 11 needs to be reserved to house the cable exit area 31 of the display device on that side. Figure 9 (This is only shown in the attached drawing where the cable exit area 31 is located in the flexible display cover 10; it is not actually a component of the flexible display cover 10.) This side is the cable exit side 1115. Unless otherwise specified, the cable exit side 1115 is the second sub-side 1112.

[0116] It should be understood that the first side 111 includes the outgoing side 1115, meaning that any one of the first sub-side 1111, the second sub-side 1112, the third sub-side 1113, and the fourth sub-side 1114 is the outgoing side 1115, such as... Figure 9 As shown, in this embodiment, the second sub-side 1112 is the outgoing side 1115.

[0117] In the above scheme, the first side 111 includes a cable outlet side 1115, which is used to connect with the cable outlet area 31 of the display device to ensure the normal operation of the display device.

[0118] In some embodiments, the first side 111 includes a non-outgoing side, and the distance between the non-outgoing side and the side of the second cover plate layer 13 is 0.05mm-1mm.

[0119] As described above, any one of the first sub-side 1111, the second sub-side 1112, the third sub-side 1113, and the fourth sub-side 1114 is the outgoing side 1115. Therefore, all sides of the first side 111 except for the outgoing side 1115 are non-outgoing sides. For example... Figure 9 As shown, the side spacing between the non-outgoing side and the second cover plate layer 13 is 0.05mm-1mm, that is... Figure 9 L9 is shown in the diagram.

[0120] It should be understood that the first cover plate layer 11 has four first sides 111, and the second cover plate layer 13 also has four second sides 132. The side spacing between the non-outgoing side and the second cover plate layer 13 refers to the distance between the non-outgoing side and its parallel and same-side second side 132.

[0121] like Figure 9 As shown, in the fabrication process of the flexible display cover plate 10 in this embodiment, the precursor of the flexible display cover plate 10 is cut along laser cutting lines MM, NN and KK. Figure 9 The L9 shown applies only to the non-outgoing wire side that has been laser-cut, namely the first sub-side 1111, the third sub-side 1113 and the fourth sub-side 1114. L9 does not apply to the uncut outgoing wire side 1115, namely the second sub-side 1112.

[0122] To monitor whether the laser cutting will reach the second cover layer 13, a non-ink area 113 can be first set in the first cover layer 11, then the first cover layer 11 and the second cover layer 13 can be bonded together, and finally the laser cutting can be performed. Of course, this application does not have any particular limitations on these process steps. It should be noted that if the side of the first cover layer 11 is laser-cut, then the side of the first cover layer 11 after cutting is the first side 111 in this application.

[0123] In the above scheme, the second cover layer 13 is disposed below the first cover layer 11, and the second cover layer 13 is completely covered by the first cover layer 11. By keeping the lateral distance L9 between the two at 0.05mm-1mm, the first cover layer 11 can effectively protect the second cover layer 13.

[0124] Specifically, the side distance L9 between the first cover plate layer 11 and the second cover plate layer 13 can be 0.05mm, 0.06mm, 0.1mm, 0.5mm, 1mm or any value within the above range.

[0125] In some embodiments, the second cover layer 13 comprises ultrathin glass.

[0126] A second aspect of this application provides a display module 30, Figure 10 This is a schematic diagram of the structure of a display module according to one embodiment of this application. Figure 11 This is a schematic diagram of the structure of a display module according to another embodiment of this application. Figure 10 and 11 As shown, the display module includes the flexible display cover plate 10 described in any of the above embodiments.

[0127] Please continue to refer to this. Figure 10 and Figure 11 The display module 30 also includes a display substrate 20, a flexible display cover plate 10 disposed on the display substrate 20, and the side of the second cover plate layer 13 away from the first cover plate layer 11 is attached to the display substrate 20.

[0128] The display substrate 20 includes a display layer 22 and a back film 23. The display layer 22 includes an operable area 221 (Active Area, AA area).

[0129] A third aspect of this application provides a display device that includes the display module 30 described in the second aspect.

[0130] It should be understood that in the embodiments of this application, the display device can be an OLED display or other display device, as well as any product or component with display function, such as a television, digital camera, mobile phone, or tablet computer that includes such display devices.

[0131] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. A flexible display cover, characterized in that, include: A first cover layer, an adhesive layer, and a second cover layer are arranged sequentially along a first direction, wherein the first cover layer completely covers the second cover layer, and the area of ​​the first cover layer is larger than the area of ​​the second cover layer. The first cover plate layer includes a visible area, an ink area, and a non-ink area, wherein the ink area and the non-ink area are located around the visible area; The non-ink area is located on the first side of the first cover plate layer to expose the first area of ​​the second cover plate layer. Along the first direction, the projected area of ​​the non-ink area is larger than the projected area of ​​the first area.

2. The flexible display cover plate according to claim 1, characterized in that, The first side includes a first sub-side. When the non-ink area is disposed on the first sub-side, the dimension L1 of the non-ink area in the second direction satisfies: 0.5mm≤L1≤20mm, and the dimension L2 of the first area in the third direction satisfies: 0<L2≤1mm. The first sub-side is parallel to the second direction, the second direction is perpendicular to the first direction, and the third direction is perpendicular to both the first and second directions.

3. The flexible display cover plate according to claim 2, characterized in that, The first side includes a second sub-side. When the non-ink area is disposed on the second sub-side, the dimension L3 of the non-ink area in the third direction satisfies: 0.5mm≤L3≤20mm, and the dimension L4 of the first area in the second direction satisfies: 0<L4≤1mm. The second sub-side is parallel to the third direction.

4. The flexible display cover plate according to claim 3, characterized in that, The non-ink area includes multiple areas, which are arranged at equal intervals.

5. The flexible display cover plate according to claim 4, characterized in that, When the non-ink area is disposed on the first sub-side, in the second direction, the ratio of the size of the plurality of non-ink areas along the first sub-side to the size of the first sub-side is 0.1-0.

5.

6. The flexible display cover plate according to claim 5, characterized in that, When the non-ink area is disposed on the second sub-side, in the third direction, the ratio of the size of the plurality of non-ink areas along the second sub-side to the size of the second sub-side is 0.1-0.

5.

7. The flexible display cover plate according to any one of claims 1 to 6, characterized in that, The non-ink area is located at the minimum side spacing between the first cover plate layer and the second cover plate layer.

8. The flexible display cover plate according to any one of claims 1 to 6, characterized in that, The non-ink area is located near the apex of the first cover plate layer.

9. The flexible display cover plate according to any one of claims 1 to 6, characterized in that, The flexible display cover has a bending area, and the non-ink area avoids the bending area.

10. The flexible display cover plate according to any one of claims 1 to 6, characterized in that, The shape of the non-ink area includes at least one of square, circular, elliptical, rhomboid, and trapezoidal shapes.

11. The flexible display cover plate according to any one of claims 1 to 6, characterized in that, The first side includes a cable exit side, which is used to connect to the cable exit area of ​​the display device.

12. The flexible display cover plate according to any one of claims 1 to 6, characterized in that, The first side includes a non-outgoing side, and the distance between the non-outgoing side and the side of the second cover plate layer is 0.05mm-1mm.

13. The flexible display cover plate according to any one of claims 1 to 6, characterized in that, The second cover layer comprises ultra-thin glass.

14. A display module, characterized in that, include: The flexible display cover plate as described in any one of claims 1 to 13.

15. The display module according to claim 14, characterized in that, The display module also includes a display substrate; The flexible display cover is disposed on the display substrate, and the side of the second cover layer away from the first cover layer is attached to the display substrate.

16. A display device, characterized in that, Includes the display module as described in claim 14 or 15.

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