Display device

Abstract

The utility model provides a display device. The display device comprises a cover plate and a plurality of display panels which are located on the surface of one side of the cover plate and arranged in an array mode. Wherein the cover plate is integrally arranged in a whole layer mode, the cover plate completely covers the multiple display panels, a first splicing seam is arranged between every two adjacent display panels, and an ink layer is arranged on the side, close to the multiple display panels, of the cover plate; the orthographic projection of the first abutted seam on the cover plate completely falls into the area range of the orthographic projection of the ink layer on the cover plate.

Description

Technical Field

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

[0002] Compared with Liquid Crystal Display (LCD) technology, Organic Lighting Emitting Diode (OLED) technology has more advantages, such as screen thickness, viewing angle and dynamic response, and has become the mainstream product in the display market. However, the products that can be mass-produced currently tend to be small and medium-sized. The yield of large-size OLED products is low and the cost is high, which limits its application scenarios. Splicing can be used as a way to apply large-size OLEDs. Compared with traditional LCD splicing products, OLED can achieve flexible display.

[0003] How to achieve OLED display splicing has become a technical problem that needs to be solved urgently. Utility Model Content

[0004] The present disclosure provides a display device, comprising:

[0005] A cover plate, and a plurality of display panels arranged in an array on a side surface of the cover plate;

[0006] Among them, the cover plate is arranged as an integrated whole layer, and the cover plate completely covers the multiple display panels, a first seam is arranged between two adjacent display panels, and an ink layer is arranged on the side of the cover plate close to the multiple display panels, and the orthographic projection of the first seam on the cover plate completely falls within the area of ​​the orthographic projection of the ink layer on the cover plate.

[0007] Optionally, in the embodiment of the present disclosure, it also includes a plurality of support members located on the side of the plurality of display panels facing away from the cover plate, a second seam is provided between two adjacent support members, and the orthographic projection of the second seam on the cover plate completely falls within the area of ​​the orthographic projection of the ink layer on the cover plate.

[0008] Optionally, in an embodiment of the present disclosure, the orthographic projection of the first seam on the cover plate completely falls within the area of ​​the orthographic projection of the second seam on the cover plate.

[0009] Optionally, in the embodiment of the present disclosure, the orthographic projection of the first seam on the cover plate and the orthographic projection of the second seam on the cover plate do not overlap with each other.

[0010] Optionally, in an embodiment of the present disclosure, the first seam at least partially overlaps the orthographic projection of the ink layer with the central area of ​​the ink layer, and the second seam is located on the edge side of the first seam close to the ink layer.

[0011] Optionally, in the embodiment of the present disclosure, a filler is also included at least arranged in the second seam.

[0012] Optionally, in the embodiment of the present disclosure, each of the support members includes a first adhesive layer, a buffer layer, a second adhesive layer and a first support layer which are sequentially arranged away from the cover plate.

[0013] Optionally, in the embodiment of the present disclosure, the edges of the first adhesive layer and the second adhesive layer corresponding to each of the supporting members are flush with each other and are indented compared to the corresponding buffer layer; the edges of the buffer layer and the first supporting layer corresponding to each of the supporting members are flush with each other.

[0014] Optionally, in the embodiment of the present disclosure, each of the support members includes a third glue layer and a second support layer which are sequentially arranged away from the cover plate.

[0015] Optionally, in the embodiment of the present disclosure, the third adhesive layer corresponding to each of the supporting members is set inwardly compared to the second supporting layer.

[0016] Optionally, in the embodiment of the present disclosure, the first supporting layers corresponding to two adjacent supporting members are overlapped and arranged near one end of the second seam.

[0017] Optionally, in the embodiment of the present disclosure, among the two adjacent support members, at least one groove structure is provided on one end of the first support layer corresponding to one of the support members close to the second seam, and an overlapping portion is provided on one end of the first support layer corresponding to the other support member close to the second seam, which corresponds to the at least one groove structure, and the overlapping portion is inserted into the accommodating space of the corresponding groove structure.

[0018] Optionally, in the embodiment of the present disclosure, the sum of the extension lengths of the groove structures along the first direction is not greater than half of the extension length of the ink layer along the first direction.

[0019] Optionally, in the embodiment of the present disclosure, an extension length of each of the groove structures along a second direction compared to the first direction is not greater than half of an extension length of the ink layer along the second direction.

[0020] Optionally, in the embodiment of the present disclosure, an extension length of each of the groove structures and the overlapping portion along the thickness direction is less than half of the thickness of the corresponding first supporting layer.

[0021] Optionally, in the embodiment of the present disclosure, the cross-sectional shape of each of the groove structures along the plane direction parallel to the cover plate is one of a trapezoid, a rectangle, and an arc.

[0022] Optionally, in the embodiment of the present disclosure, the display panel is a flexible display panel.

[0023] Optionally, in the embodiment of the present disclosure, it also includes a functional layer located between the multiple display panels and the cover plate, and a fourth adhesive layer located between the functional layer and the cover plate; the functional layer and the fourth adhesive layer are integrated as a whole layer and are completely covered by the cover plate.

[0024] Optionally, in the embodiment of the present disclosure, a back film is further included between each of the display panels and the corresponding support member, and the edges of the back film and the corresponding display panel are arranged flush.

[0025] Optionally, in an embodiment of the present disclosure, each of the display panels includes a fixed display area and a sliding display area located on one side of the fixed display area; the fixed display area is located on a side close to the first seam, and the sliding display area is located on a side away from the first seam.

[0026] Optionally, in the embodiment of the present disclosure, it also includes a support member located on the side of the multiple display panels facing away from the cover plate; the support member is arranged in an integrated layer and includes a first part located in the fixed display area and a second part located in the sliding display area, the first part is connected and arranged in the fixed display area, and the orthographic projection of the first seam on the cover plate completely falls within the area of ​​the orthographic projection of the support member on the cover plate.

[0027] Optionally, in an embodiment of the present disclosure, the scrolling display area is located on both sides of the fixed display area, and the orthographic projection of the first seam on the cover plate completely falls within the area of ​​the orthographic projection of the first part on the cover plate.

[0028] Optionally, in an embodiment of the present disclosure, the scrolling display area is located on one side of the fixed display area, and the orthographic projection of the first seam on the cover plate completely falls within the area of ​​the orthographic projection of the second part on the cover plate.

[0029] Optionally, in the embodiment of the present disclosure, it also includes a fixed display area and a sliding display area located on one side of the fixed display area, the first seam and the second seam are arranged to be connected and form a filling space, the filling space is filled with a fifth glue layer, and the orthographic projections of the first seam and the second seam on the cover plate completely fall within the area of ​​the orthographic projection of the sliding display area on the cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of a structure of two panels spliced ​​together in the related art;

[0031] Figure 2 A schematic diagram of a top view structure of a display device provided in an embodiment of the present disclosure;

[0032] Figure 3 For along Figure 2 A schematic diagram of one of the cross-sectional structures in the direction indicated by MM;

[0033] Figure 4 A schematic diagram of a structure of a display device provided in an embodiment of the present disclosure;

[0034] Figure 5 A schematic diagram of a structure of a display device provided in an embodiment of the present disclosure;

[0035] Figure 6 A schematic diagram of a structure of a display device provided in an embodiment of the present disclosure;

[0036] Figure 7 A schematic diagram of a structure of a display device provided in an embodiment of the present disclosure;

[0037] Figure 8 A schematic diagram of a structure of a display device provided in an embodiment of the present disclosure;

[0038] Fig. 9 A schematic diagram of a structure of a display device provided in an embodiment of the present disclosure;

[0039] Fig.10 A schematic diagram of a structure of a display device provided in an embodiment of the present disclosure;

[0040] Fig.11 for Fig.10 A schematic diagram of a top view structure of the first supporting layer;

[0041] Fig.12 for Fig.11 A schematic diagram of one of the enlarged structures of the middle region Q;

[0042] Fig.13 For along Fig.11 A schematic diagram of one of the cross-sectional structures in the direction indicated by NN;

[0043] Fig.14 for Fig.10 A schematic diagram of one of the structural designs of the second adhesive layer;

[0044] Fig.15A schematic diagram of a structure of a display device provided in an embodiment of the present disclosure;

[0045] Fig.16 A schematic diagram of a structure of a display device provided in an embodiment of the present disclosure;

[0046] Fig.17 A schematic diagram of a structure of a display device provided in an embodiment of the present disclosure;

[0047] Fig.18 A schematic diagram of a structure of a display device provided in an embodiment of the present disclosure;

[0048] Description of reference numerals:

[0049] 10-cover plate; 20-display panel; 30-first seam; 40-ink layer; 50-support member; 60-second seam; 70-filler; 51-first adhesive layer; 52-buffer layer; 53-second adhesive layer; 54-first support layer; 501-third adhesive layer; 502-second support layer; 80-groove structure; 90-overlapping part; 91-functional layer; 92-fourth adhesive layer; 93-back film; A1-fixed display area; A2-sliding display area; 511-first part; 512-second part; 94-fifth adhesive layer. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. And in the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present disclosure.

[0051] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Inside", "outside", "upper", "lower" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0052] It should be noted that the sizes and shapes of the figures in the accompanying drawings do not reflect the actual proportions, and are only intended to illustrate the present disclosure. The same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0053] In the related art, taking two panels for example, the common method is to Figure 1 The OLED is spliced ​​in the manner shown. Among them, 01 represents one of the panels, 02 represents another panel, 03 represents one of the cover plates corresponding to one of the panels (i.e. 01), 04 represents another cover plate corresponding to another panel (i.e. 02), 05 represents one of the support structures corresponding to one of the panels (i.e. 01), and 06 represents another support structure corresponding to another panel (i.e. 02). However, the splicing gaps between the panels and the splicing gaps between the support structures in the OLED splicing design can easily lead to front display mold printing problems.

[0054] In view of this, an embodiment of the present disclosure provides a display device for improving the problem of front display mold printing caused by relevant splicing gaps in OLED splicing design.

[0055] Combination Figure 2 and Figure 3 As shown, Figure 2 This is a schematic diagram of a top view of a display device provided in an embodiment of the present disclosure. Figure 3 For along Figure 2 A schematic diagram of a cross-sectional structure in the direction indicated by MM; specifically, the display device includes:

[0056] A cover plate 10, and a plurality of display panels 20 arranged in an array on a side surface of the cover plate 10;

[0057] The cover plate 10 is provided as an integrated whole layer, and the cover plate 10 completely covers the multiple display panels 20, a first seam 30 is provided between two adjacent display panels 20, an ink layer 40 is provided on one side of the cover plate 10 close to the multiple display panels 20, and the orthographic projection of the first seam 30 on the cover plate 10 completely falls within the area of ​​the orthographic projection of the ink layer 40 on the cover plate 10.

[0058] In the specific implementation process, the display device provided by the embodiment of the present disclosure includes a cover plate 10 and a plurality of display panels 20; wherein the plurality of display panels 20 are located on one side surface of the cover plate 10 and are arranged in an array. Exemplarily, the material of the cover plate 10 may be a flexible material such as polyethylene terephthalate (PET), polyimide (PI), tricarboxylic acid cycle (TAC), etc., and the thickness thereof may range from 30 μm to 300 μm. Exemplarily, the plurality of display panels 20 may be two, three, or more than three. Of course, the specific number of the plurality of display panels 20 and the related arrangement method may be set according to the actual application needs, and are not limited here. In addition, the cover plate 10 is arranged as an integrated whole layer, and the cover plate 10 completely covers the plurality of display panels 20, that is, the cover plate 10 is arranged as a whole layer. Moreover, a first joint 30 is provided between two adjacent display panels 20, and an ink layer 40 is provided on one side of the cover plate 10 close to the multiple display panels 20, and the orthographic projection of the first joint 30 on the cover plate 10 completely falls within the area of ​​the orthographic projection of the ink layer 40 on the cover plate 10. In this way, the first joint 30 between two adjacent display panels 20 is effectively shielded by the ink layer 40, thereby improving the problem of light leakage; moreover, the cover plate 10 provided as an integrated whole layer effectively improves the mold printing problem of the front display caused by the first joint 30 between the display panels 20 during the splicing process.

[0059] In one exemplary embodiment, the display device further includes a plurality of support members 50 located on the side of the plurality of display panels 20 facing away from the cover plate 10, and a second seam 60 is arranged between two adjacent support members 50, and the orthographic projection of the second seam 60 on the cover plate 10 completely falls within the area of ​​the orthographic projection of the ink layer 40 on the cover plate 10.

[0060] Still combined Figure 3In the exemplary embodiment shown, the display device further includes a plurality of support members 50 located on the side of the plurality of display panels 20 away from the cover plate 10, and the plurality of support members 50 are used to effectively support the plurality of display panels 20. Among them, each support member 50 is provided in a one-to-one correspondence with each display panel 20, and the specific number of the plurality of support members 50 can be set according to the actual application needs. Moreover, a second seam 60 is provided between two adjacent support members 50, and the orthographic projection of the second seam 60 on the cover plate 10 completely falls within the area of ​​the orthographic projection of the ink layer 40 on the cover plate 10. In this way, the second seam 60 between two adjacent support members 50 is effectively shielded by the ink layer 40, and the cover plate 10 provided with an integrated whole layer effectively improves the mold printing problem of the front display caused by the second seam 60 between the support members 50.

[0061] In the embodiment of the present disclosure, the first seam 30 and the second seam 60 may be arranged in the following ways, but are not limited thereto.

[0062] In one exemplary embodiment, the orthographic projection of the first seam 30 on the cover plate 10 completely falls within the region of the orthographic projection of the second seam 60 on the cover plate 10 .

[0063] Still combined Figure 3 In the exemplary embodiment shown, the orthographic projection of the first seam 30 on the cover plate 10 completely falls within the area of ​​the orthographic projection of the second seam 60 on the cover plate 10. For example, the value range of the first seam 30 is 0-1mm, and the setting position of the first seam 30 is designed to be centered compared to the ink layer 40; the value range of the second seam 60 is 0.1mm-1mm, and the setting position of the second seam 60 is designed to be centered compared to the ink layer 40. Accordingly, the first seam 30 and the second seam 60 are arranged to be connected. For example, the value of the first seam 30 is 0.1mm, and the value of the second seam 60 is 0.2mm.

[0064] In one exemplary embodiment, in combination Figure 4 and Figure 5 As shown, the orthographic projection of the first seam 30 on the cover plate 10 and the orthographic projection of the second seam 60 on the cover plate 10 do not overlap each other.

[0065] In one exemplary embodiment, the orthographic projection of the first seam 30 at the ink layer 40 at least partially overlaps with the central area of ​​the ink layer 40, and the second seam 60 is located on the edge side of the first seam 30 close to the ink layer 40. In this way, the overlap of the first seam 30 and the second seam 60 is effectively prevented, and the problem of a large depth at the seam position is avoided, thereby improving the process mold printing and the problem of poor local strength.

[0066] Still combined Figure 4 In the exemplary embodiment shown, the first seam 30 is arranged at a position centered relative to the ink layer 40, and accordingly, the orthographic projection of the first seam 30 on the ink layer 40 completely falls within the central area of ​​the ink layer 40. Moreover, the second seam 60 is located on the edge of the first seam 30 close to the ink layer 40, and accordingly, the second seam 60 is located on the right side of the first seam 30. It should be noted that in Figure 4 In the exemplary embodiment shown, the distances between the edges of the first adhesive layer 51 and the second adhesive layer 53 corresponding to the right edge of the second seam 60 and the right edge of the ink layer 40 (as shown by d1 in the figure) are greater than or equal to 0.3 mm; the distances between the edges of the buffer layer 52 and the first support layer 54 corresponding to the right edge of the second seam 60 and the right edge of the ink layer 40 (as shown by d2 in the figure) are greater than or equal to 0.3 mm; the distances between the edges of the first adhesive layer 51 and the second adhesive layer 53 corresponding to the left edge of the second seam 60 and the edge of the display panel 20 corresponding to the right edge of the first seam 30 (as shown by d3 in the figure) are greater than or equal to 1 mm; in this way, the ink layer 40 is guaranteed to effectively block the first seam 30 and the second seam 60.

[0067] In one exemplary embodiment, the orthographic projection of the first seam 30 at the ink layer 40 at least partially overlaps with the central area of ​​the ink layer 40 , and the second seam 60 is located on the edge side of the first seam 30 away from the ink layer 40 .

[0068] Still combined Figure 5 In the exemplary embodiment shown, the first seam 30 is centrally located relative to the ink layer 40, and accordingly, the orthographic projection of the first seam 30 on the ink layer 40 completely falls within the central region of the ink layer 40. Moreover, the second seam 60 is located on the edge side of the first seam 30 away from the ink layer 40, and accordingly, the second seam 60 is located on the left side of the first seam 30.

[0069] In the embodiment of the present disclosure, the display device further includes a filler 70 at least disposed in the second seam 60. In this way, the filler 70 increases the support at the relevant seam position.

[0070] exist Figure 6 In the exemplary embodiment shown, the display device further includes a filler 70 disposed in the first seam 30 and the second seam 60 .

[0071] exist Figure 7 and Figure 8 In the exemplary embodiment shown, the display device further includes a filler 70 disposed in the second seam 60 .

[0072] For example, a gap glue design process can be used to fill the first joint 30 and the second joint 60 with glue to form the required filler 70. For example, the filled glue can be epoxy resin, acrylic and silicone, which are not limited here.

[0073] Still combined Figures 3 to 8 In the exemplary embodiment shown, each of the support members 50 includes a first glue layer 51, a buffer layer 52, a second glue layer 53 and a first support layer 54, which are sequentially arranged away from the cover plate 10. Exemplarily, the buffer layer 52 is a key implementation layer for flexible folding or sliding, and its material can be metal, carbon fiber and other materials, and the thickness range can be 30μm to 300μm. Exemplarily, the display device can be applied to the sliding scene. Exemplarily, the value range of the seam between the buffer layers 52 corresponding to two adjacent support members 50 can be 0.1mm to 1mm. Exemplarily, the material of the first support layer 54 can be metal, carbon fiber and other materials, and the thickness range can be 100μm to 1000μm. The value range of the gap of the seam between the first support layers 54 corresponding to two adjacent support members 50 can be 0.1mm to 1mm.

[0074] Still combined Figures 3 to 8 In the exemplary embodiment shown, the edges of the first adhesive layer 51 and the second adhesive layer 53 corresponding to each of the support members 50 are arranged flush, and are set inward compared to the corresponding buffer layer 52. Exemplarily, the first adhesive layer 51 and the second adhesive layer 53 are inwardly arranged compared to the corresponding buffer layer 52 by 0mm to 0.5mm. Accordingly, the value range of the joint between the first adhesive layers 51 corresponding to two adjacent support members 50 is 0.1mm to 1mm. Exemplarily, the first adhesive layer 51 and the second adhesive layer 53 are adhesive adhesives, and the corresponding thickness ranges are 25μm to 200μm.

[0075] Still combined Figures 3 to 8 In the exemplary embodiment shown, the edges of the buffer layer 52 and the first support layer 54 corresponding to each support member 50 are arranged flush. It should be noted that the numerical value of the joint between the buffer layers 52 in two adjacent support members 50 and the numerical value of the joint between the first support layers 54 can be greater than the numerical value of the corresponding first joint 30, thereby ensuring the production efficiency of the process. Figures 3 to 8 In the exemplary embodiment shown, the buffer layer 52 and the first support layer 54 may also be patterned, thereby providing a guarantee for the sliding design of the display device.

[0076] In one exemplary embodiment, Fig. 9As shown, each of the support members 50 includes a third adhesive layer 501 and a second support layer 502 which are sequentially arranged away from the cover plate 10. The third adhesive layer 501 corresponding to each of the support members 50 is set inwardly compared to the second support layer 502. Exemplarily, the material of the third adhesive layer 501 can be adhesive glue, surface glue, sheet glue, etc. Exemplarily, the material of the second support layer 502 can be metal, carbon fiber, etc. In addition, in Fig. 9 In the exemplary embodiment shown, the second supporting layer 502 may also be patterned, thereby providing a guarantee for the folding design of the display device.

[0077] Still combined Fig. 9 In the exemplary embodiment shown, the third glue layer 501 corresponding to each support member 50 is set inward compared to the corresponding second support layer 502. The second joint 60 between two adjacent support members 50 and the first joint 30 between the corresponding display layers are set in the center compared to the ink layer 40. It should be noted that the numerical value of the joint between the second support layers 502 in two adjacent support members 50 can be greater than the numerical value of the corresponding first joint 30, thereby ensuring the preparation efficiency of the process.

[0078] In one of the exemplary embodiments, among the two adjacent support members 50, at least one groove structure 80 is provided on one end of the first support layer 54 corresponding to one of the support members 50 close to the second seam 60, and an overlapping portion 90 is provided on one end of the first support layer 54 corresponding to the other support member 50 close to the second seam 60, which is arranged one-to-one with the at least one groove structure 80, and the overlapping portion 90 is inserted into the accommodating space of the corresponding groove structure 80.

[0079] Combination Fig.10 In the exemplary embodiment shown, in two adjacent support members 50, at least one groove structure 80 is provided at one end of the first support layer 54 corresponding to one of the support members near the second joint 60. The at least one groove structure 80 can be one or more, and the actual number can be set according to application needs and is not limited here. Moreover, at one end of the first support layer 54 corresponding to the other support member near the second joint 60 is provided with an overlap portion 90 that corresponds to the at least one groove structure 80, and the overlap portion 90 is inserted into the accommodating space of the corresponding groove structure 80. Fig.11 Shown Fig.10 A schematic diagram of a top view of the first support layer 54. Fig.12 Shown Fig.11 A schematic diagram of one of the enlarged structures of the middle region Q. Fig.13 Shown along Fig.11A schematic diagram of a cross-sectional structure in the direction indicated by NN in FIG. 1 is a schematic diagram of a side view structure in which the groove structure 80 and the overlap portion 90 are interlaced. Figures 10 to 13 In the exemplary embodiment shown, the cross-sectional shape of each groove structure 80 along the plane parallel to the cover plate 10 is a trapezoid. In practical applications, a half-etching process can be used to prepare the groove structure 80 and the overlap portion 90. The specific preparation process can be implemented with reference to relevant technologies and will not be described in detail here. It should be noted that in order to ensure the bonding area of ​​the adhesive corresponding to the second adhesive layer 53, a local point design solution can be adopted, and the sum of the interlaced areas of all points is not greater than half of the area of ​​the corresponding support layer. Still combined Fig.11 In the exemplary embodiment shown in the figure, in order to ensure the interlaced design of the groove structure 80 and the overlap portion 90, the second adhesive layer 53 can be made of Fig.14 The relevant design is performed accordingly, the area of ​​the second adhesive layer 53 corresponding to the groove structure 80 has no pattern design, and the area of ​​the second adhesive layer 53 corresponding to the overlap portion 90 retains the relevant adhesive pattern.

[0080] In the embodiment of the present disclosure, the sum of the extension lengths of the groove structures 80 along the first direction is no greater than half of the extension length of the ink layer 40 along the first direction.

[0081] In the embodiments of the present disclosure, unless otherwise specified, the direction indicated by arrow X is the extension direction of the first direction, and the direction indicated by arrow Y is the extension direction of the second direction. Figures 10 to 13 In the exemplary embodiment shown, the sum of the extension lengths of the groove structures 80 along the first direction is less than or equal to half of the extension length of the ink layer 40 along the first direction. Exemplarily, the extension lengths of the groove structures 80 along the first direction are x1, x2, x3, and x4, respectively, and the extension length of the ink layer 40 along the first direction is L, and the two satisfy the formula: (x1+x2+x3+x4)≤L / 2, where x1≤L / 8, x2≤L / 8, x3≤L / 8, and x4≤L / 8.

[0082] In the embodiment of the present disclosure, the extension length of each of the groove structures 80 along a second direction compared to the first direction is not greater than half of the extension length of the ink layer 40 along the second direction.

[0083] Exemplarily, the extension lengths of the groove structures 80 along the first direction are y1, y2, y3, y4, respectively, and the extension length of the ink layer 40 along the second direction is W, then the formula is satisfied: y1≤W / 2, y2≤W / 2, y3≤W / 2, y4≤W / 2.

[0084] In the embodiment of the present disclosure, the extension length of each groove structure 80 and the overlap portion 90 in the thickness direction is less than half of the thickness of the corresponding first support layer 54. Exemplarily, the thickness of the first support layer 54 is H, and the groove depths of each groove structure 80 are h1, h2, h3 and h4 respectively, which satisfies the formula: h1 = H / 2-0.1mm, h2 = H / 2-0.1mm, h3 = H / 2-0.1mm, h4 = H / 2-0.1mm. In this way, space guarantee is provided for the overlap of the groove structure 80 and the overlap portion 90.

[0085] In the embodiment of the present disclosure, the cross-sectional shape of each of the groove structures 80 along the plane direction parallel to the cover plate 10 is one of a trapezoid, a rectangle, and an arc.

[0086] In the embodiment of the present disclosure, the display panel 20 is a flexible display panel 20. In this way, the flexible display panel 20 can be applied to vehicles and notebooks to expand new application forms, such as left-right sliding, up-down sliding, and single-side sliding.

[0087] In the embodiment of the present disclosure, the display device further includes a functional layer 91 located between the multiple display panels 20 and the cover plate 10, and a fourth adhesive layer 92 located between the functional layer 91 and the cover plate 10; the functional layer 91 and the fourth adhesive layer 92 are integrated as a whole layer and are completely covered by the cover plate 10. Among them, the functional layer 91 and the functional layer 91 of the cover plate 10 can be bonded together by the fourth adhesive layer 92. Exemplarily, the functional layer 91 can be a polarizer or a touch layer, which is not limited here. Exemplarily, the fourth adhesive layer 92 can be an optically clear adhesive (OCA) or an optical resin material (OCR), and the corresponding thickness range is 25μm to 200μm. In the embodiment of the present disclosure, the display device also includes a back film 93 located between each of the display panels 20 and the corresponding support member 50, and the back film 93 is flush with the edge of the corresponding display panel 20.

[0088] Still combined Figures 3 to 10 In the exemplary embodiment shown, the display device further includes a back film 93 located between each display panel 20 and the corresponding support member 50, and the display panel 20 is supported and protected by the back film 93. Exemplarily, the back film 93 and the edge of the corresponding display panel 20 are arranged flush.

[0089] It should be noted that when the display device is a structure that can be rolled up, due to the limitations of the roll width, driving device, etc., the display device is not completely closed in the closed and rolled-up state, but a part of the display area is still unfolded. That is to say, in the embodiment of the present disclosure, a part of the display area of ​​the display device can be always unfolded, and another part of the display area can be unfolded or rolled up. In the embodiment of the present disclosure, unless otherwise specified, a part of the display area that is always unfolded is defined as a fixed display area A1, and another part of the display area that can be unfolded and rolled up is defined as a sliding display area A2.

[0090] In one exemplary embodiment, in combination Fig.15 As shown, each of the display panels 20 includes a fixed display area A1 and a sliding display area A2 located on one side of the fixed display area A1; the fixed display area A1 is located on a side close to the first seam 30, and the sliding display area A2 is located on a side away from the first seam 30. In this way, the sliding form of the display device is realized.

[0091] In one exemplary embodiment, in combination Fig.16 and Fig.17 As shown, the display device further includes a support member 50 located on the side of the multiple display panels 20 away from the cover plate 10; the support member 50 is integrated and arranged in a whole layer, and includes a first part 511 located in the fixed display area A1 and a second part 512 located in the sliding display area A2, the first part 511 is connected and arranged in the fixed display area A1, and the orthographic projection of the first joint 30 on the cover plate 10 completely falls within the area of ​​the orthographic projection of the support member 50 on the cover plate 10. In other words, for the spliced ​​multiple display panels 20, an integrated design scheme can be adopted to prepare the support member 50 located on the side of the multiple display panels 20 away from the cover plate 10. Exemplarily, the first glue layer 51, the buffer layer 52, the second glue layer 53 and the first support layer 54 included in the support member 50 are all arranged in an integrated whole layer. It should be noted that the buffer layer 52 and the first support layer 54 can be patterned in the area corresponding to the sliding display area A2, which provides a guarantee for the realization of the subsequent sliding function.

[0092] exist Fig.16 In the exemplary embodiment shown, the sliding display area A2 is located on both sides of the fixed display area A1, and the orthographic projection of the first seam 30 on the cover plate 10 completely falls within the area of ​​the orthographic projection of the first part 511 on the cover plate 10. In this way, the realization of the double-sided sliding form of the display device is ensured, such as left-right sliding, up-down sliding, etc.

[0093] exist Fig.17In the exemplary embodiment shown, the scrolling display area A2 is located on one side of the fixed display area A1, and the orthographic projection of the first seam 30 on the cover plate 10 completely falls within the area of ​​the orthographic projection of the second part 512 on the cover plate 10. In other words, the support member 50 is arranged according to the scrolling display area A2 through the first seam 30. In this way, while taking into account the scrolling range, the realization of the single-sided scrolling form of the display device is ensured, such as left-side scrolling, right-side scrolling, etc. It should be noted that in Fig.16 In the exemplary embodiment shown, the first adhesive layer 51 and the second adhesive layer 53 in the support member 50 can be an integrated whole layer setting, that is, a full adhesive setting, and the buffer layer 52 and the first support layer 54 in the support member 50 are patterned in the portion located in the scroll display area A2.

[0094] exist Fig.18 In the exemplary embodiment shown, the display device further includes a fixed display area A1 and a sliding display area A2 located on one side of the fixed display area A1, the first joint 30 and the second joint 60 are arranged through and form a filling space, the filling space is filled with a fifth adhesive layer 94, and the orthographic projections of the first joint 30 and the second joint 60 on the cover plate 10 completely fall within the area of ​​the orthographic projection of the sliding display area A2 on the cover plate 10. In other words, the support member 50 is arranged through the first joint 30 according to the sliding display area A2, and the corresponding support members 50 are also spliced ​​according to each display panel 20, and the fifth adhesive layer 94 is filled in the filling space formed by the first joint 30 and the second joint 60. In this way, the stress generated during the sliding process can be effectively dispersed through the fifth adhesive layer 94, thereby improving the performance of the display device.

[0095] It should be noted that in Fig.18 In the exemplary embodiment shown, the first adhesive layer 51, the second adhesive layer 53, the buffer layer 52 and the first support layer 54 in the support member 50 are all spliced ​​and arranged, and the buffer layer 52 and the first support layer 54 are patterned in the sliding display area A2. Moreover, the second part 512 of the first support layer 54 located in the sliding display area A2 can be a plurality of strips arranged at equal intervals. Among them, the seam design value of the first seam 30 is smaller than the spacing between two adjacent strips, thereby ensuring that the spacing between the strips on both sides of the splicing position is equal to the spacing between two adjacent strips in other areas, thereby improving the sliding performance.

[0096] In the embodiments of the present disclosure, in addition to the film layer structure mentioned above, the display device may also be provided with other structures according to the actual application needs, which will not be described in detail here. Of course, in addition to designing the display device in the manner mentioned above, it can also be provided in other ways, which will not be described in detail here. In the specific implementation process, the display device provided by the embodiment of the utility model can be a vehicle-mounted display screen, a laptop computer, a projector, a 3D printer, a virtual reality device, an augmented reality device, a mobile phone, a tablet computer, a television, a display, a digital photo frame, a navigator, a smart watch, a fitness wristband, a personal digital assistant, and any other product or component with a display function. The other essential components of the display device should be understood by ordinary technicians in the field, so they will not be repeated here, nor should they be used as limitations on the utility model.

[0097] Although the preferred embodiments of the present disclosure have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present disclosure.

[0098] Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.

Claims

1. A display device, wherein: include: A cover plate, and a plurality of display panels arranged in an array on a side surface of the cover plate; Among them, the cover plate is arranged as an integrated whole layer, and the cover plate completely covers the multiple display panels, a first seam is arranged between two adjacent display panels, and an ink layer is arranged on the side of the cover plate close to the multiple display panels, and the orthographic projection of the first seam on the cover plate completely falls within the area of ​​the orthographic projection of the ink layer on the cover plate.

2. The display device according to claim 1, wherein: It also includes a plurality of support members located on the side of the plurality of display panels away from the cover plate, a second seam is provided between two adjacent support members, and the orthographic projection of the second seam on the cover plate completely falls within the area of ​​the orthographic projection of the ink layer on the cover plate.

3. The display device according to claim 2, wherein: The orthographic projection of the first seam on the cover plate completely falls within the region of the orthographic projection of the second seam on the cover plate.

4. The display device according to claim 2, wherein: The orthographic projection of the first seam on the cover plate and the orthographic projection of the second seam on the cover plate do not overlap each other.

5. The display device according to claim 4, wherein: The orthographic projection of the first seam at the ink layer at least partially overlaps with the central area of ​​the ink layer, and the second seam is located on the edge side of the first seam close to the ink layer.

6. The display device according to claim 3 or 5, wherein: Also included is a filler at least disposed in the second joint.

7. The display device according to any one of claims 2 to 5, wherein: Each of the supporting members comprises a first adhesive layer, a buffer layer, a second adhesive layer and a first supporting layer which are sequentially arranged away from the cover plate.

8. The display device according to claim 7, wherein: The edges of the first adhesive layer and the second adhesive layer corresponding to each of the supporting members are flush with each other and are indented compared to the corresponding buffer layer; the edges of the buffer layer and the first supporting layer corresponding to each of the supporting members are flush with each other.

9. The display device according to any one of claims 2 to 5, wherein: Each of the supporting members includes a third adhesive layer and a second supporting layer which are sequentially arranged away from the cover plate; the third adhesive layer corresponding to each of the supporting members is arranged to be inwardly contracted compared to the second supporting layer.

10. The display device according to claim 7, wherein: In two adjacent support members, at least one groove structure is provided on one end of the first support layer corresponding to one of the support members close to the second seam, and an overlap portion is provided on one end of the first support layer corresponding to the other support member close to the second seam, which corresponds to the at least one groove structure, and the overlap portion is inserted into the accommodating space of the corresponding groove structure.

11. The display device according to claim 10, wherein: The sum of the extension lengths of the groove structures along the first direction is no greater than half of the extension length of the ink layer along the first direction.

12. The display device according to claim 11, wherein: An extension length of each of the groove structures along a second direction compared to the first direction is no greater than half of an extension length of the ink layer along the second direction.

13. The display device according to claim 10, wherein: An extension length of each of the groove structures and the overlapping portion along the thickness direction is less than half of the thickness of the corresponding first supporting layer.

14. The display device according to any one of claims 1 to 5, 8, 10 to 13, wherein: It also includes a functional layer located between the multiple display panels and the cover plate, and a fourth adhesive layer located between the functional layer and the cover plate; the functional layer and the fourth adhesive layer are integrated as a whole layer and are completely covered by the cover plate.

15. The display device according to any one of claims 2 to 5, 8, 10 to 13, wherein: It also includes a back film located between each of the display panels and the corresponding support member, and the back film and the edge of the corresponding display panel are arranged flush.

16. The display device according to claim 1, wherein: Each of the display panels includes a fixed display area and a sliding display area located on one side of the fixed display area; the fixed display area is located on a side close to the first seam, and the sliding display area is located on a side away from the first seam.

17. The display device according to claim 1, wherein: It also includes a support member located on the side of the multiple display panels away from the cover plate; the support member is arranged in an integrated layer and includes a first part located in the fixed display area and a second part located in the sliding display area, the first part is connected and arranged in the fixed display area, and the orthographic projection of the first seam on the cover plate completely falls within the area of ​​the orthographic projection of the support member on the cover plate.

18. The display device according to claim 17, wherein: The scrolling display areas are respectively located on both sides of the fixed display area, and the orthographic projection of the first seam on the cover plate completely falls within the area of ​​the orthographic projection of the first part on the cover plate.

19. The display device according to claim 17, wherein: The scrolling display area is located at one side of the fixed display area, and the orthographic projection of the first seam on the cover plate completely falls within the area of ​​the orthographic projection of the second part on the cover plate.

20. The display device according to claim 2, wherein: It also includes a fixed display area and a sliding display area located on one side of the fixed display area, the first seam and the second seam are arranged to be connected to form a filling space, the filling space is filled with a fifth glue layer, and the orthographic projections of the first seam and the second seam on the cover plate completely fall within the area of ​​the orthographic projection of the sliding display area on the cover plate.

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