Display device

Abstract

The invention 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] This disclosure relates to the field of display technology, and in particular to a display device. Background Technology

[0002] Compared to Liquid Crystal Display (LCD) technology, Organic Light Emitting Diode (OLED) technology offers several advantages, such as improved screen thickness, viewing angle, and dynamic response, making it the mainstream product in the display market. However, currently mass-producible OLED products tend to be smaller in size, while large-size OLED products suffer from lower yield rates and higher costs, limiting their application scenarios. Splicing can be a viable option for large-size OLED applications; compared to traditional LCD splicing products, OLED allows for flexible displays.

[0003] How to achieve OLED display splicing has become an urgent technical problem to be solved. Summary of the Invention

[0004] This disclosure provides a display device, comprising:

[0005] A cover plate, comprising multiple display panels arranged in an array on one side surface of the cover plate;

[0006] The cover plate is integrally formed and completely covers the plurality of display panels. A first seam is provided between two adjacent display panels. An ink layer is provided on the side of the cover plate closest to the plurality of display panels. The orthographic projection of the first seam on the cover plate falls entirely within the area of ​​the orthographic projection of the ink layer on the cover plate.

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

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

[0009] Optionally, in this embodiment of the 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.

[0010] Optionally, in an embodiment of this disclosure, the first seam's orthographic projection on the ink layer at least partially overlaps with the central region of the ink layer, and the second seam is located on the side of the first seam near the edge of the ink layer.

[0011] Optionally, in this embodiment of the disclosure, it further includes at least a filler disposed within the second seam.

[0012] Optionally, in this 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 disposed sequentially away from the cover plate.

[0013] Optionally, in this embodiment of the present disclosure, the edges of the first adhesive layer and the second adhesive layer corresponding to each of the support members are flush, and are recessed relative to the corresponding buffer layer; the edges of the buffer layer and the first support layer corresponding to each of the support members are flush.

[0014] Optionally, in embodiments of this disclosure, each of the support members includes a third adhesive layer and a second support layer disposed sequentially away from the cover plate.

[0015] Optionally, in this embodiment of the present disclosure, the third adhesive layer corresponding to each of the support members is recessed relative to the second support layer.

[0016] Optionally, in this embodiment of the disclosure, the first support layer corresponding to two adjacent support members is overlapped at one end near the second seam.

[0017] Optionally, in an embodiment of this disclosure, in two adjacent support members, one support member has at least one groove structure at one end of the first support layer near the second seam, and the other support member has an overlapping portion at one end of the first support layer near the second seam that corresponds to the at least one groove structure. The overlapping portion is inserted into the receiving space of the corresponding groove structure.

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

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

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

[0021] Optionally, in the embodiments of this disclosure, the cross-sectional shape of each of the groove structures along the plane direction parallel to the cover plate is one of trapezoidal, rectangular, or circular arc.

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

[0023] Optionally, in this embodiment of the present disclosure, a functional layer located between the plurality of display panels and the cover plate, and a fourth adhesive layer located between the functional layer and the cover plate are further included; the functional layer and the fourth adhesive layer are integrally formed and are completely covered by the cover plate.

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

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

[0026] Optionally, in this embodiment of the present disclosure, a support member is further included on the side of the plurality of display panels facing away from the cover plate; the support member is integrally formed as a whole and includes a first part located in the fixed display area and a second part located in the sliding display area, the first part being connected within the fixed display area, and the orthographic projection of the first seam on the cover plate completely falling within the area of ​​the orthographic projection of the support member on the cover plate.

[0027] Optionally, in this embodiment of the disclosure, the sliding 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 this embodiment of the disclosure, the sliding 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 this embodiment of the present disclosure, a fixed display area and a sliding display area located on one side of the fixed display area are further included. The first seam and the second seam are connected and form a filling space. The filling space is filled with a fifth adhesive 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. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of one type of structure for splicing two panels in related technologies;

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

[0032] Figure 3 For along Figure 2 A schematic diagram of one type of cross-sectional structure in the direction shown in MM;

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

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

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

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

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

[0038] Figure 9 This is a schematic diagram of one structure of a display device provided in an embodiment of the present disclosure;

[0039] Figure 10 This is a schematic diagram of one structure of a display device provided in an embodiment of the present disclosure;

[0040] Figure 11 for Figure 10 A top-view schematic diagram of one type of structure of the first supporting layer in the middle;

[0041] Figure 12 for Figure 11 A schematic diagram of one type of enlarged structure of region Q in the middle region;

[0042] Figure 13 For along Figure 11 A schematic diagram of one type of cross-sectional structure in the direction shown in the middle NN;

[0043] Figure 14 for Figure 10 A schematic diagram of one possible structural design for the second adhesive layer;

[0044] Figure 15This is a schematic diagram of one structure of a display device provided in an embodiment of the present disclosure;

[0045] Figure 16 This is a schematic diagram of one structure of a display device provided in an embodiment of the present disclosure;

[0046] Figure 17 This is a schematic diagram of one structure of a display device provided in an embodiment of the present disclosure;

[0047] Figure 18 This is a schematic diagram of one structure of a display device provided in an embodiment of the present disclosure. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Furthermore, the embodiments and features in the embodiments of this disclosure can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0049] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “inner,” “outer,” “upper,” and “lower” are used only to indicate relative positional relationships; when the absolute position of the described objects changes, the relative positional relationship may also change accordingly.

[0050] It should be noted that the dimensions and shapes of the figures in the accompanying drawings do not reflect actual proportions and are intended only to illustrate the content of this disclosure. Furthermore, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0051] In related technologies, taking the splicing of two panels as an example, the common method is... Figure 1The diagram illustrates an OLED splicing design. Here, 01 represents one panel, 02 represents another panel, 03 represents one cover plate corresponding to one panel (01), 04 represents another cover plate corresponding to another panel (02), 05 represents one support structure corresponding to one panel (01), and 06 represents another support structure corresponding to another panel (02). However, the gaps between panels and between support structures in OLED splicing designs can easily lead to molding problems on the front display.

[0052] In view of this, the present disclosure provides a display device for improving the problem of front display molding caused by splicing gaps in OLED splicing design.

[0053] Combination Figure 2 and Figure 3 As shown, where, Figure 2 This is a top view schematic diagram of one embodiment of the display device provided in this disclosure. Figure 3 For along Figure 2 A schematic diagram of one cross-sectional structure in the direction shown in the MM diagram; specifically, the display device includes:

[0054] Cover plate 10, and multiple display panels 20 arranged in an array on one side surface of the cover plate 10;

[0055] The cover plate 10 is integrally formed and completely covers the plurality of display panels 20. A first seam 30 is provided between two adjacent display panels 20. An ink layer 40 is provided on the side of the cover plate 10 near the plurality of display panels 20. The orthographic projection of the first seam 30 on the cover plate 10 falls completely within the area of ​​the orthographic projection of the ink layer 40 on the cover plate 10.

[0056] In specific implementation, the display device provided in this embodiment 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 arranged in an array. Exemplarily, the material of the cover plate 10 can be flexible materials such as polyethylene terephthalate (PET), polyimide (PI), or tricarboxylic acid cycle (TAC), with a thickness ranging from 30μm to 300μm. Exemplarily, the plurality of display panels 20 can be two, three, or more. Of course, the specific number and arrangement of the plurality of display panels 20 can be set according to actual application needs and are not limited here. Furthermore, the cover plate 10 is integrally formed as a single layer, and the cover plate 10 completely covers the plurality of display panels 20, that is, the cover plate 10 is formed as a single layer covering the entire surface. Furthermore, a first seam 30 is provided between two adjacent display panels 20, and an ink layer 40 is provided on the side of the cover plate 10 closest to the multiple display panels 20. 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. In this way, the ink layer 40 effectively blocks the first seam 30 between two adjacent display panels 20, improving the light leakage problem; moreover, the integrated cover plate 10 effectively improves the molding problem of the front display caused by the first seam 30 between the display panels 20 during the splicing process.

[0057] 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 away from the cover plate 10, and a second seam 60 is provided between two adjacent support members 50, wherein the orthographic projection of the second seam 60 on the cover plate 10 falls completely within the area of ​​the orthographic projection of the ink layer 40 on the cover plate 10.

[0058] Still combined Figure 3 In 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 facing away from the cover plate 10, thereby effectively supporting the plurality of display panels 20. Each support member 50 is configured in a one-to-one correspondence with each display panel 20, and the specific number of support members 50 can be set according to actual application needs. Furthermore, 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 ink layer 40 effectively shields the second seam 60 between two adjacent support members 50, and the integrated, single-layer cover plate 10 effectively improves the molding problem of the front display caused by the second seam 60 between the support members 50.

[0059] In the embodiments disclosed herein, the first seam 30 and the second seam 60 may be configured in several ways, but are not limited to these.

[0060] In one exemplary embodiment, the orthographic projection of the first seam 30 on the cover plate 10 falls entirely within the area of ​​the orthographic projection of the second seam 60 on the cover plate 10.

[0061] 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 0–1 mm, and the first seam 30 is positioned centered relative to the ink layer 40; the value range of the second seam 60 is 0.1 mm–1 mm, and the second seam 60 is also positioned centered relative to the ink layer 40. Accordingly, the first seam 30 and the second seam 60 are continuous. For example, the value of the first seam 30 is 0.1 mm, and the value of the second seam 60 is 0.2 mm.

[0062] In one exemplary embodiment, combined with 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.

[0063] In one exemplary embodiment, the first seam 30 at least partially overlaps with the central region of the ink layer 40 in its orthographic projection, and the second seam 60 is located on the side of the first seam 30 near the edge of the ink layer 40. This effectively prevents the seams of the first seam 30 and the second seam 60 from overlapping, avoiding the problem of excessive depth at the seam location, thereby improving the printing process and addressing issues of poor local strength.

[0064] Still combined Figure 4 In the exemplary embodiment shown, the first seam 30 is positioned relatively centrally relative to the ink layer 40, and correspondingly, the orthographic projection of the first seam 30 onto the ink layer 40 falls entirely within the central area of ​​the ink layer 40. Furthermore, the second seam 60 is located on the side of the first seam 30 closest to the edge of the ink layer 40, and correspondingly, the second seam 60 is located to the right of the first seam 30. It should be noted that in... Figure 4In 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 effectively blocks the first seam 30 and the second seam 60.

[0065] In one exemplary embodiment, the first seam 30 at least partially overlaps with the central region of the ink layer 40 in its orthographic projection, and the second seam 60 is located on the side of the first seam 30 away from the edge of the ink layer 40.

[0066] Still combined Figure 5 In the exemplary embodiment shown, the first seam 30 is positioned centrally relative to the ink layer 40, and correspondingly, the orthographic projection of the first seam 30 onto the ink layer 40 falls entirely within the central region of the ink layer 40. Furthermore, the second seam 60 is located on the side of the first seam 30 away from the edge of the ink layer 40, and correspondingly, the second seam 60 is located to the left of the first seam 30.

[0067] In this embodiment, the display device further includes at least one filler 70 disposed within the second seam 60. This filler 70 increases support at the seam location.

[0068] exist Figure 6 In the exemplary embodiment shown, the display device further includes filler 70 disposed within the first seam 30 and the second seam 60.

[0069] exist Figure 7 and Figure 8 In the exemplary embodiment shown, the display device further includes a filler 70 disposed within the second seam 60.

[0070] For example, a gap-application design process can be used to fill the first seam 30 and the second seam 60 with adhesive material to form the desired filler 70. For example, the filling adhesive material can be epoxy resin, acrylic, or silicone, and is not limited thereto.

[0071] Still combined Figures 3 to 8In the exemplary embodiment shown, each of the support members 50 includes a first adhesive layer 51, a buffer layer 52, a second adhesive layer 53, and a first support layer 54, sequentially disposed opposite to the cover plate 10. For example, the buffer layer 52 is a key layer for flexible folding or rolling, and its material can be metal, carbon fiber, or other materials, with a thickness ranging from 30μm to 300μm. For example, this display device can be applied to a rolling scenario. For example, the gap between the buffer layers 52 corresponding to two adjacent support members 50 can range from 0.1mm to 1mm. For example, the first support layer 54 can be made of metal, carbon fiber, or other materials, with a thickness ranging from 100μm to 1000μm. The gap between the first support layers 54 corresponding to two adjacent support members 50 can range from 0.1mm to 1mm.

[0072] 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 flush and recessed relative to the corresponding buffer layer 52. For example, the first adhesive layer 51 and the second adhesive layer 53 are recessed by 0 mm to 0.5 mm relative to the corresponding buffer layer 52. Accordingly, the gap between the first adhesive layers 51 of two adjacent support members 50 ranges from 0.1 mm to 1 mm. For example, the first adhesive layer 51 and the second adhesive layer 53 are adhesive materials, with corresponding thicknesses ranging from 25 μm to 200 μm.

[0073] 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 of the support members 50 are flush. It should be noted that the numerical value of the seam between the buffer layers 52 in two adjacent support members 50, and the numerical value of the seam between the first support layers 54, can be greater than the numerical value of the corresponding first seam 30, thereby ensuring the manufacturing efficiency of the process. Furthermore, in Figures 3 to 8 In the exemplary embodiment shown, the buffer layer 52 and the first support layer 54 can also be patterned to provide a guarantee for the sliding design of the display device.

[0074] In one exemplary embodiment, such as Figure 9 As shown, each of the support members 50 includes a third adhesive layer 501 and a second support layer 502 disposed sequentially opposite to the cover plate 10. The third adhesive layer 501 corresponding to each support member 50 is recessed relative to the second support layer 502. For example, the material of the third adhesive layer 501 can be adhesive, surface adhesive, sheet adhesive, etc. For example, the material of the second support layer 502 can be metal, carbon fiber, etc. Furthermore, in... Figure 9In the exemplary embodiment shown, the second support layer 502 can also be patterned to provide a guarantee for the folding design of the display device.

[0075] Still combined Figure 9 In the exemplary embodiment shown, the third adhesive layer 501 corresponding to each support member 50 is recessed relative to the corresponding second support layer 502. The second seam 60 between two adjacent support members 50, and the first seam 30 between the corresponding display layers, are centered relative to the ink layer 40. It should be noted that the size of the seam between the second support layers 502 of two adjacent support members 50 can be larger than the size of the corresponding first seam 30, thereby ensuring the manufacturing efficiency of the process.

[0076] In one exemplary embodiment, in two adjacent support members 50, the first support layer 54 of one support member 50 is provided with at least one groove structure 80 at one end near the second seam 60, and the first support layer 54 of the other support member 50 is provided with an overlapping portion 90 corresponding to the at least one groove structure 80 at one end near the second seam 60, and the overlapping portion 90 is inserted into the receiving space of the corresponding groove structure 80.

[0077] Combination Figure 10 In the exemplary embodiment shown, in two adjacent support members 50, the first support layer 54 corresponding to one type of support member has at least one groove structure 80 near the end of the second seam 60. The at least one groove structure 80 can be one or more; the actual number can be set according to application needs and is not limited here. Furthermore, the first support layer 54 corresponding to the other support member has an overlapping portion 90 corresponding to each of the at least one groove structure 80 at the end of the second seam 60. This overlapping portion 90 inserts into the receiving space of the corresponding groove structure 80. Figure 11 As shown Figure 10 A top view schematic diagram of one possible structure of the first support layer 54. (See diagram below.) Figure 12 As shown Figure 11 A schematic diagram of one type of enlarged structure of region Q in the middle region. For example... Figure 13 The following is along Figure 11 The diagram shows one type of cross-sectional structure in the direction shown in the diagram (NN), specifically a side view of one type of structure where the groove structure 80 and the overlapping part 90 are intersected. Figures 10 to 13In the exemplary embodiment shown, the cross-sectional shape of each groove structure 80 along the plane parallel to the cover plate 10 is trapezoidal. In practical applications, a semi-etching process can be used to prepare the groove structure 80 and the overlapping 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 material corresponding to the second adhesive layer 53, a local point design scheme can be adopted, and the sum of the intersecting areas of all points is not greater than half of the area of ​​the corresponding support layer. Still in conjunction with Figure 11 In the exemplary embodiment shown, to ensure the interlocking design of the groove structure 80 and the overlapping portion 90, the second adhesive layer 53 can be adopted as follows: Figure 14 Accordingly, the area in the second adhesive layer 53 corresponding to the groove structure 80 is unpatterned, while the area in the second adhesive layer 53 corresponding to the overlap 90 retains the relevant adhesive pattern.

[0078] In this embodiment of the disclosure, the sum of the extension lengths of each of the groove structures 80 along the first direction is not greater than half the extension length of the ink layer 40 along the first direction.

[0079] In this embodiment of the 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. Still in conjunction with... Figures 10 to 13 In the exemplary embodiment shown, the sum of the extension lengths of each groove structure 80 along the first direction is less than or equal to half the extension length of the ink layer 40 along the first direction. For example, the extension lengths of each groove structure 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. 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.

[0080] In this embodiment of the disclosure, the extension length of each of the groove structures 80 along the second direction relative to the first direction is not greater than half the extension length of the ink layer 40 along the second direction.

[0081] For example, the extension lengths of each groove structure 80 along the first direction are y1, y2, y3, and y4, respectively, and the extension length of the ink layer 40 along the second direction is W. Then the following formulas are satisfied: y1≤W / 2, y2≤W / 2, y3≤W / 2, y4≤W / 2.

[0082] In this embodiment, the extension length of each groove structure 80 and the overlapping portion 90 along the thickness direction is less than half the thickness of the corresponding first support layer 54. For example, if 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, then the following formulas are satisfied: h1 = H / 2 - 0.1 mm, h2 = H / 2 - 0.1 mm, h3 = H / 2 - 0.1 mm, h4 = H / 2 - 0.1 mm. This provides sufficient space for the overlap between the groove structure 80 and the overlapping portion 90.

[0083] In this embodiment of the disclosure, the cross-sectional shape of each groove structure 80 along the plane direction parallel to the cover plate 10 is one of trapezoidal, rectangular, or circular arc.

[0084] In this embodiment, the display panel 20 is a flexible display panel 20. This allows the flexible display panel 20 to be applied in automotive and laptop applications, expanding into new application forms, such as left-right scrolling, up-down scrolling, and single-side scrolling.

[0085] In this embodiment, the display device further includes a functional layer 91 located between the plurality of 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 integrally formed and completely covered by the cover plate 10. The fourth adhesive layer 92 can bond the functional layer 91 and the functional layer 91 of the cover plate 10 together. For example, the functional layer 91 can be a polarizer or a touch layer, without limitation. For example, the fourth adhesive layer 92 can be an optically clear adhesive (OCA) or an optically clear resin (OCR), with a thickness ranging from 25 μm to 200 μm. In this embodiment, the display device further includes a back film 93 located between each of the display panels 20 and the corresponding support member 50, the back film 93 being flush with the edges of the corresponding display panel 20.

[0086] 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, which provides support and protection for the display panel 20. Exemplarily, the back film 93 and the edges of the corresponding display panel 20 are flush.

[0087] It should be noted that when the display device has a rollable structure, due to limitations such as the roll width and driving mechanisms, the display device is not completely closed in the closed and rolled-up state; rather, a portion of the display area remains unfolded. In other words, in this embodiment of the present disclosure, a portion of the display area can be continuously unfolded, while another portion can be both unfolded and rolled up. In this embodiment of the present disclosure, unless otherwise specified, the continuously unfolded portion of the display area is defined as the fixed display area A1, and the other portion of the display area that can both be unfolded and rolled up is defined as the rollable display area A2.

[0088] In one exemplary embodiment, combined with Figure 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 the side close to the first seam 30, and the sliding display area A2 is located on the side away from the first seam 30. In this way, a sliding shape of the display device is achieved.

[0089] In one exemplary embodiment, combined with Figure 16 and Figure 17 As shown, the display device also includes a support member 50 located on the side of the plurality of display panels 20 facing away from the cover plate 10. The support member 50 is integrally formed and includes a first portion 511 located in the fixed display area A1 and a second portion 512 located in the sliding display area A2. The first portion 511 is connected within 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 support member 50 on the cover plate 10. That is, for the multiple spliced ​​display panels 20, an integrated design can be used to prepare the support member 50 located on the side of the multiple display panels 20 facing away from the cover plate 10. For example, the first adhesive layer 51, buffer layer 52, second adhesive layer 53, and first support layer 54 of the support member 50 are all integrally formed. 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 subsequent implementation of the sliding function.

[0090] exist Figure 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 portion 511 on the cover plate 10. This ensures the realization of the dual-sided sliding configuration of the display device, such as left-right sliding or up-down sliding.

[0091] exist Figure 17In the exemplary embodiment shown, the sliding 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. That is, the support member 50 is configured such that the sliding display area A2 passes through the first seam 30. In this way, while considering the sliding range, the realization of a single-sided sliding configuration of the display device is ensured, such as left-side sliding or right-side sliding. It should be noted that... Figure 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, that is, all adhesive material. The buffer layer 52 and the first support layer 54 in the support member 50 are patterned in the portion located in the sliding display area A2.

[0092] exist Figure 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 seam 30 and the second seam 60 are connected and form a filling space, which is filled with a fifth adhesive layer 94. The orthographic projections of the first seam 30 and the second seam 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. That is, the support member 50 is set according to the sliding display area A2 through the first seam 30, and the corresponding support member 50 is also spliced ​​according to each display panel 20, and the filling space formed by the connection of the first seam 30 and the second seam 60 is filled with the fifth adhesive layer 94. In this way, the fifth adhesive layer 94 can effectively disperse the stress generated during the sliding process, thereby improving the performance of the display device.

[0093] It should be noted that, in Figure 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 ​​together, and the portions of the buffer layer 52 and the first support layer 54 located in the sliding display area A2 are patterned. Furthermore, the second portion 512 of the first support layer 54 within the sliding display area A2 can be multiple strips arranged at equal intervals. The 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, thus improving the sliding performance.

[0094] In the embodiments of this disclosure, the display device may include, in addition to the film layer structure mentioned above, other structures may be provided according to actual application needs, which will not be detailed here. Of course, besides designing the display device according to the methods mentioned above, other methods may also be used, which will not be detailed here. In specific implementation, the display device provided in the embodiments of this disclosure can be any product or component with display function, such as an in-vehicle 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 monitor, a digital photo frame, a navigator, a smartwatch, a fitness wristband, or a personal digital assistant. Other essential components of this display device are those that should be understood by those skilled in the art, and will not be described in detail here, nor should they be construed as limiting this disclosure.

[0095] Although preferred embodiments of this disclosure have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this disclosure.

[0096] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include such modifications and variations.

Claims

1. A display device, wherein, include: A cover plate, comprising multiple display panels arranged in an array on one side surface of the cover plate; The cover plate is integrally formed and completely covers the plurality of display panels. A first seam is provided between two adjacent display panels. An ink layer is provided on the side of the cover plate closest to the plurality of display panels. The orthographic projection of the first seam on the cover plate falls entirely within the area of ​​the orthographic projection of the ink layer on the cover plate.

2. The display device as claimed in 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, and a second seam is provided between two adjacent support members, wherein the orthographic projection of the second seam on the cover plate falls completely within the area of ​​the orthographic projection of the ink layer on the cover plate.

3. The display device as claimed in claim 2, wherein, The orthographic projection of the first seam on the cover plate falls entirely within the area of ​​the orthographic projection of the second seam on the cover plate.

4. The display device as claimed in 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.

5. The display device as claimed in claim 4, wherein, The first seam's orthographic projection on the ink layer at least partially overlaps with the central region of the ink layer, and the second seam is located on the side of the first seam near the edge of the ink layer.

6. The display device as claimed in claim 3 or 5, wherein, It also includes at least the filler material disposed within the second seam.

7. The display device according to any one of claims 2-5, wherein, Each of the support members includes a first adhesive layer, a buffer layer, a second adhesive layer, and a first support layer disposed sequentially away from the cover plate.

8. The display device as claimed in claim 7, wherein, The edges of the first adhesive layer and the second adhesive layer corresponding to each of the support members are flush with each other and are recessed relative to the corresponding buffer layer; the edges of the buffer layer and the first support layer corresponding to each of the support members are flush with each other.

9. The display device according to any one of claims 2-5, wherein, Each of the support members includes a third adhesive layer and a second support layer disposed sequentially away from the cover plate; the third adhesive layer corresponding to each of the support members is recessed relative to the second support layer.

10. The display device as claimed in claim 9, wherein, In two adjacent support members, one support member has at least one groove structure at one end of the first support layer near the second seam, and the other support member has an overlapping portion at one end of the first support layer near the second seam that corresponds to the at least one groove structure. The overlapping portion is inserted into the receiving space of the corresponding groove structure.

11. The display device as claimed in claim 10, wherein, The sum of the extension lengths of each of the groove structures along the first direction is not greater than half the extension length of the ink layer along the first direction.

12. The display device as claimed in claim 10, wherein, The extension length of each of the groove structures along the second direction relative to the first direction is not greater than half the extension length of the ink layer along the second direction.

13. The display device as claimed in claim 10, wherein, The extension length of each of the groove structures and the overlapping portion along the thickness direction is less than half the thickness of the corresponding first support layer.

14. The display device according to any one of claims 1-5, 8, 10-13, wherein, It also includes a functional layer located between the plurality of 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 integrally formed and are completely covered by the cover plate.

15. The display device according to any one of claims 2-5, 8, and 10-13, wherein, It also includes a back film located between each of the display panels and the corresponding support member, the back film being flush with the edges of the corresponding display panels.

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

17. The display device as claimed in claim 1, wherein, It also includes a support member located on the side of the plurality of display panels away from the cover plate; the support member is integrally formed as a whole 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 within the fixed display area, and the orthographic projection of the first seam on the cover plate falls completely within the area of ​​the orthographic projection of the support member on the cover plate.

18. The display device as claimed in claim 17, wherein, The sliding display areas are 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 as claimed in claim 17, wherein, The sliding 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.

20. The display device as claimed in 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 connected and form a filling space. The filling space is filled with a fifth adhesive 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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