Spliced screen

Abstract

The invention discloses a spliced screen. The spliced screen comprises a cover plate and at least two display modules adhered to the cover plate, the display module comprises a flexible display panel and a supporting plate, the flexible display panel comprises a display part and n frame parts arranged around the display part, the supporting plate is located on the side, away from the cover plate, of the flexible display panel, and n is larger than or equal to 3; in n frame parts of the flexible display panel, at least the frame part close to the adjacent display module is a bent part, the bent part comprises a back folding part and an arc-shaped part, the back folding part is folded to the side, away from the cover plate, of the supporting plate, and the arc-shaped part is connected between the display part and the back folding part; in any two adjacent display modules, the center line of the arc-shaped part of the bent part in one display module is located on a first plane, the center line of the arc-shaped part of the bent part in the other display module is located on a second plane, the first plane and the second plane are both parallel to the cover plate, and the first plane and the second plane do not coincide. According to the spliced screen, the spliced frame can be reduced.

Description

A spliced screen TECHNICAL FIELD

[0001] The present application relates to the technical field of display devices, in particular to a spliced screen. BACKGROUND

[0002] With the development of organic electroluminescence (OLED) display, the pursuit of users for immersive experience of a vehicle intelligent cockpit has shifted from a traditional size display screen to a long strip screen, that is, the display screens of instruments and central control, or central control and co-pilot, or instruments, central control and co-pilot are designed as a whole.

[0003] The vehicle long strip screen can be divided into a spliced long strip screen and an integrated long strip screen. The spliced long strip screen is composed of two or three independent display screens through a same cover plate. Since the spliced design, the structure and function design have more flexibility. The integrated long strip screen is designed as a whole in terms of display panel and display module. Due to different design concepts or differentiated needs of customers, the integrated long strip screen tends to be customized.

[0004] At present, the spliced long strip screen has more advantages than the integrated long strip screen in terms of production line limitation, cost constraints, actual application scenarios of customers and logistics needs of customers. Therefore, how to reduce the spliced frame of the spliced long strip screen has become an important technical issue.

[0005] SUMMARY

[0006] The present application provides a spliced screen, which can reduce the spliced frame without affecting the splicing reliability and improve the user experience.

[0007] To achieve the above purpose, the present application provides the following technical solutions:

[0008] A spliced screen comprises:

[0009] a cover plate;

[0010] at least two display modules, the light-emitting side of the display module is bonded to the cover plate, the at least two display modules are spliced, and any two adjacent display modules have a splicing gap therebetween;

[0011] The display module comprises a flexible display panel and a support plate, the flexible display panel comprises a display part and n frame parts arranged around the display part, the light-emitting side of the display part is arranged towards the cover plate, the support plate is located on the side of the flexible display panel away from the cover plate, and n≥3;

[0012] Among the n bezel parts of the flexible display panel, at least the bezel part adjacent to the adjacent display module is a bending part, the bending part comprises a backfolding part and an arc-shaped part, the backfolding part is backfolded to the side of the support plate away from the cover plate, and the arc-shaped part is connected between the display part and the backfolding part.

[0013] Among any two adjacent display modules, the center line of the arc-shaped part of the bending part in one display module is located on a first plane, the center line of the arc-shaped part of the bending part in the other display module is located on a second plane, the first plane and the second plane are parallel to the cover plate, and the first plane and the second plane are not coincident.

[0014] Optionally, among any two adjacent display modules, the maximum distance between the arc-shaped part of the bending part and the display part in one display module along a first direction is a first distance, the maximum distance between the arc-shaped part of the bending part and the display part in the other display module along the first direction is a second distance, the first distance and the second distance are not equal, and the first direction is the arrangement direction of the arc-shaped part of the bending part and the display part.

[0015] Optionally, among any two adjacent display modules, the thicknesses of the two support plates along the arrangement direction of the cover plate and the display module are different.

[0016] Optionally, among any two adjacent display modules, the thicknesses of the two support plates along the arrangement direction of the cover plate and the display module are the same, and the shapes of the two support plates are different.

[0017] Optionally, among any two adjacent display modules, the side of the two support plates away from the cover plate each has a protrusion opposite the backfolding part of the bending part, and the heights of the protrusions on the two support plates are different.

[0018] Optionally, among any two adjacent display modules, the side of the two support plates away from the cover plate each has a recess opposite the backfolding part of the bending part, and the depths of the recesses on the two support plates are different.

[0019] Optionally, among any two adjacent display modules, the side of one support plate away from the cover plate has a protrusion opposite the backfolding part of the bending part, and / or the side of one support plate away from the cover plate has a recess opposite the backfolding part of the bending part.

[0020] Optionally, in the display module, the support plate is symmetrically arranged along a first center line, and the extension direction of the first center line is perpendicular to the arrangement direction of the arc-shaped part and the display part.

[0021] Optionally, a fixing part is filled between any two adjacent display modules, and the fixing part covers the back folding part of the bending part.

[0022] The fixing part is formed of an insulating curing material.

[0023] Optionally, the material of the fixing part is a heat-conducting material.

[0024] Optionally, the material of the fixing part is epoxy resin, silica gel or heat-conducting silica gel.

[0025] Optionally, the display module further comprises a polarizer, which is located between the flexible display panel and the cover plate, and the normal projection of the polarizer on the flexible display panel covers the display part.

[0026] Optionally, the display module further comprises a back film and a heat-dissipating adhesive layer, the back film is located on the side of the flexible display panel away from the cover plate, and the heat-dissipating adhesive layer is located between the back film and the support plate.

[0027] Optionally, the display module comprises at least three display modules, which are arranged in sequence along a preset direction.

[0028] The present application provides a spliced screen, which comprises a cover plate and at least two display modules, the light-emitting side of the display module is bonded to the cover plate, the display module can comprise a flexible display panel and a support plate, the flexible display panel comprises a display part and n frame parts arranged around the display part, and the support plate is located on the side of the flexible display panel away from the cover plate. Since at least the frame part adjacent to the adjacent display module in the flexible display panel is a bending part, the back folding part of the bending part is folded to the side of the support plate away from the cover plate, which can reduce the width of the frame of the flexible display panel at the splicing position, thereby further reducing the width of the splicing frame. Since the center line of the arc-shaped part of the bending part in one of the two adjacent display modules and the center line of the arc-shaped part of the bending part in the other display module are not in the same plane, the bending parts in the two adjacent display modules are at a staggered angle at the splicing position, which can reduce the splicing gap, thereby further reducing the splicing frame and ensuring the reliability of splicing and improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0029] FIG. 1 is a structural schematic diagram of a spliced screen in the related art;

[0030] FIG. 2 is a cross-sectional schematic diagram of the splicing position of the spliced screen in the related art;

[0031] FIG. 3 is a cross-sectional view of the splicing position of a display module provided in an embodiment of the present application;

[0032] FIG. 4 is a structure comparison diagram of a frame of a display module provided in an embodiment of the present application;

[0033] FIG. 5 is a structure comparison diagram of a splicing part of a display module provided in an embodiment of the present application;

[0034] FIG. 6 is a structure comparison diagram of an arc-shaped part provided in an embodiment of the present application;

[0035] FIG. 7 is a structure diagram of a splicing screen provided in an embodiment of the present application;

[0036] FIG. 8 is a sectional view of a splicing part of a display module provided in an embodiment of the present application;

[0037] FIG. 9 is a sectional view of a splicing part of another display module provided in an embodiment of the present application;

[0038] FIGS. 10 to 14 are structure comparison diagrams of a support plate provided in an embodiment of the present application;

[0039] FIG. 15 is a structure diagram of a support plate provided in an embodiment of the present application;

[0040] FIG. 16 is a sectional view of a splicing part of another display module provided in an embodiment of the present application;

[0041] FIG. 17 is a structure diagram of another splicing screen provided in an embodiment of the present application.

[0042] Icon: 101-central control screen; 102-instrument screen; 103-co-driver screen; 01-display panel; 02-support plate; 03-cover plate; 1-cover plate; A-display module; 2-flexible display panel; 21-display part; 22-bending part; 221-arc-shaped part; 222-back folding part; 3-support plate; 31-protrusion; 32-recess; 4-polarizer; 5-optical adhesive layer; 6-back film; 7-heat dissipation adhesive layer; 8-fixing part; 9-driving unit; 91-CTF; A1-central control screen; A2-instrument screen; A3-co-driver screen. DETAILED DESCRIPTION

[0043] In the related art, as shown in FIG. 1, the splicing long strip screen can be formed by splicing three independent display screens, i.e., a central control screen 101, an instrument screen 102 and a co-driver screen 103. The three display screens are pasted on the same cover plate, and the splicing frame of the splicing part of the adjacent two display screens is d4.

[0044] As shown in FIG. 2, FIG. 2 is a schematic view of the cross section of the splicing position of two independent display screens, each display screen has a stacked structure of a display module, which can include a display panel 01, a support plate 02 and a cover plate 03, the light-emitting side of the display panel 01 is bonded to the cover plate 03, the support plate 02 is located on the side of the display panel 01 away from the cover plate 03, the cover plates 03 of the two display screens are the same cover plate, the width of the frame of the whole display screen is equal to the width of the frame of the flexible display panel, the width of the frame of the display panel in one of the display screens can be d1, the width of the frame of the display panel in the other display screen is d2, and in order to ensure that the two display screens cannot interfere with each other, the splicing gap between the two spliced display screens needs to have a splicing gap, the width of the splicing gap between the two display screens can be d3, and the splicing frame d4 at the splicing position of the two display screens is equal to d1+d2+d3, so that the structure of the splicing position in FIG. 2 will cause the splicing frame at the splicing position of the splicing long screen to be large, which will affect the user experience.

[0045] To solve the above technical problems, the embodiment of the present application provides a splicing screen, as shown in FIG. 3, which comprises:

[0046] a cover plate 1;

[0047] at least two display modules A, the light-emitting side of the display module A is bonded to the cover plate 1, the at least two display modules A are spliced, and there is a splicing gap between any two adjacent display modules A;

[0048] the display module A comprises a flexible display panel 2 and a support plate 3, the flexible display panel 2 comprises a display part 21 and n frame parts surrounding the display part 21, the light-emitting side of the display part 21 is arranged towards the cover plate 1, and the support plate 3 is located on the side of the flexible display panel 2 away from the cover plate 1, n≥3;

[0049] of the n frame parts of the flexible display panel 2, at least the frame part adjacent to the adjacent display module A is a bending part 22, the bending part 22 comprises a backfolding part 222 and an arc-shaped part 221, the backfolding part 222 is backfolded to the side of the support plate 3 away from the cover plate 1, and the arc-shaped part 221 is connected between the display part 21 and the backfolding part 222;

[0050] of any two adjacent display modules A, the center line of the arc-shaped part 221 of the bending part 22 in one display module A is located on a first plane a, the center line of the arc-shaped part 221 of the bending part 22 in the other display module A is located on a second plane b, the first plane a and the second plane b are parallel to the cover plate 1, and the first plane a and the second plane b are not coincident.

[0051] In the spliced screen provided by the embodiment of the present application, the spliced screen includes a cover plate 1 and at least two display modules A, the light-emitting side of the display module A is bonded to the cover plate 1, the display module A can include a flexible display panel 2 and a support plate 3, the flexible display module A includes a display part 21 and n frame parts arranged around the display part 21, and the support plate 3 is located on the side of the flexible display panel 2 away from the cover plate 1. Since at least the frame part adjacent to the adjacent display module A in the flexible display panel 2 is a bending part 22, the back folding part 222 of the bending part 22 is folded to the side of the support plate 3 away from the cover plate 1, the width of the frame of the flexible display panel 2 at the splicing position can be reduced, and the width of the splicing frame can be further reduced. Since the center line of the arc-shaped part 221 of the bending part 22 in one of the two adjacent display modules A and the center line of the arc-shaped part 221 of the bending part 22 in the other display module A are not in the same plane, the bending part 22 in the two adjacent display modules A is at a dislocation angle at the splicing position, the splicing gap can be reduced, the splicing frame can be further reduced, the reliability of splicing can be ensured, and the user experience can be improved.

[0052] Specifically, as shown in FIG. 4, FIG. 4 is a structure comparison diagram of the frame of a display module A provided by the embodiment of the present application. As shown in FIG. 4, the width of the frame of one display module A in the related art is d1, and in the embodiment of the present application, the frame part of the flexible display panel 2 adjacent to the adjacent display module A in the display module A is set as the bending part 22, a part of the bending part 22 is folded to the side of the support plate 3 away from the cover plate 1, the width of the frame of the flexible display panel 2 at the splicing position can be reduced, and the width of the frame of the flexible display panel 2 at the splicing position is d11 at this time, d11 is less than d1. As shown in FIG. 5, FIG. 5 is a structure comparison diagram of the splicing position of the display module A provided by the embodiment of the present application. When the splicing gap d31 between the two display modules A in the embodiment of the present application is equal to the splicing gap d3 between the two display screens in the related art, the width of the splicing frame of the spliced screen at the splicing position can be reduced. The splicing frame of the spliced screen in the related art is d4, the splicing frame of the spliced screen in the embodiment of the present application is d41, and d41 is less than d4.

[0053] Further, as shown in FIG. 6, FIG. 6 is a contrast diagram of the splicing gap at the splicing position of the display module A provided in the embodiment of the present application. If the planes where the center lines of the arc-shaped portions 221 of the bending portions 22 in any two adjacent display modules A are located are the same plane, the plane is parallel to the cover plate 1, the splicing gap between the two adjacent display modules A is the same as the splicing gap between the two display screens in the related art, and the splicing gap is d31. In the embodiment of the present application, the center line of the arc-shaped portion 221 of the bending portion 22 in one of the two adjacent display modules A is located on the first plane a, and the center line of the arc-shaped portion 221 of the bending portion 22 in the other display module A is located on the second plane b. The first plane a and the second plane b are both parallel to the cover plate 1, and the first plane a and the second plane b do not coincide with each other. In this way, the two adjacent bending portions 22 at the splicing position of the display module A can be arranged in a staggered manner along the arrangement direction of the cover plate 1 and the flexible display panel 2, so as to ensure the distance between the two bending portions 22, avoid the reliability problem caused by the interference between the display modules A, and reduce the splicing gap at the splicing position of the two display modules A. At this time, the splicing gap at the splicing position can be d32, d32 is less than d31, and the splicing frame at the splicing position of the spliced screen can be further reduced.

[0054] It should be noted that the spliced screen provided in the embodiment of the present application can be applied to a vehicle-mounted long strip screen or other application scenarios, which is not limited here and can be selected according to actual conditions.

[0055] Specifically, in the spliced screen, the shape of the orthogonal projection of the display module A on the cover plate 1 can be a triangle, a rectangle or a regular hexagon, which is not shown here and can be determined according to actual conditions. For example, if the shape of the orthogonal projection of the display module A on the cover plate 1 is a rectangle, the orthogonal projection of the flexible display panel 2 on the cover plate 1 is a rectangle, the flexible display panel 2 has four frame portions, and the orthogonal projection of the support plate 3 on the cover plate 1 is a rectangle.

[0056] In the embodiment of the present application, the at least two display modules A in the spliced screen can be arranged in sequence along the preset direction to form a spliced long strip screen, so that the user experiences a more smooth scene of integrated display. Alternatively, the display modules A in the spliced screen can also be arranged in other arrangement manners, which is not shown here and can be determined according to actual conditions.

[0057] For example, as shown in FIG. 7, FIG. 7 is a structural schematic diagram of a spliced screen provided in an embodiment of the present application. The spliced screen in FIG. 7 can be spliced by three independent display screens. The three display screens are arranged in sequence. Each display screen includes a display module A. The three display screens share a cover plate. The orthogonal projection of the display module A on the cover plate 1 is a rectangle. The frame portions on both sides of the flexible display panel 2 in the display module A located in the middle can be bent portions 22. The frame portions adjacent to one side of the display module A located in the middle in the flexible display panel 2 in the display module A located on both sides can be bent portions 22. In this way, the width of the spliced frame at the spliced position of the spliced screen can be greatly reduced, so that the user experiences a more smooth scene of integrated display.

[0058] Specifically, the three independent display screens in FIG. 7 can be a center control screen A1, an instrument screen A2 and a co-driver screen A3 respectively. The center control screen A1 can realize control of the vehicle. The instrument screen A2 can be used to observe vehicle instrument data. The co-driver screen A3 can facilitate operation of the co-driver passenger.

[0059] In the embodiment of the present application, the frame portions of the flexible display panel 2 in the display module A which are not spliced with other display modules can also be set as bent portions 22. The width of the frame at the non-spliced position of the display module A can be reduced, and the user experience can be improved. Specifically, whether the frame portions of the flexible display panel 2 in the display module A which are not spliced with other display modules are bent portions 22 is not limited here and is determined according to actual conditions.

[0060] In the embodiment of the present application, as shown in FIG. 8, in any two adjacent display modules A, the maximum distance between the arc-shaped portion 221 of the bent portion 22 and the display portion 21 in one display module A along the first direction is a first distance d51. The maximum distance between the arc-shaped portion 221 of the bent portion 22 and the display portion 21 in the other display module A along the first direction is a second distance d52. The first distance d51 is not equal to the second distance d52. The first direction is the arrangement direction of the arc-shaped portion 221 of the bent portion 22 and the display portion 21.

[0061] Specifically, in the display module A, the maximum distance between the arc-shaped portion 221 of the bent portion 22 and the display portion 21 along the first direction can be reduced to reduce the frame of the display module A. In the two adjacent display modules, the maximum distance between the arc-shaped portion 221 and the display portion 21 along the first direction in one display module can remain unchanged, while the maximum distance between the arc-shaped portion 221 and the display portion 21 along the first direction in the other display module can be reduced. Thus, the first distance and the second distance are not equal, and the spliced frame at the spliced position of the spliced screen can be further reduced.

[0062] In the embodiments of the present application, the thicknesses of the flexible display panels 2 in each display module A of the spliced screen are the same, and the purpose of reducing the splicing frame can be achieved by making the structures of the support plates 3 in two adjacent display modules A different.

[0063] Optionally, in any two adjacent display modules A, the thicknesses of the two support plates 3 along the arrangement direction of the cover plate 1 and the display module A can be different. Thus, in the two adjacent display modules A, the center line of the arc-shaped part 221 of the bending part 22 can not coincide with the plane parallel to the cover plate 1, and the maximum distance between the arc-shaped part 221 of the bending part 22 and the display part 21 along the first direction is different, thereby greatly reducing the width of the splicing frame at the splicing position of the two adjacent display modules A.

[0064] As shown in FIGS. 3 and 8, which are cross-sectional views of the splicing position of two display modules A, the two display modules A can be a first display module and a second display module respectively, the thickness of the support plate 3 in the first display module is less than that in the second display module, and the distance between the back folding part 222 of the bending part 22 and the display part 21 in the first display module can be less than that in the second display module A. This can make the first plane in which the center line of the arc-shaped part 221 of the bending part 22 in the first display module A is located and the second plane in which the center line of the arc-shaped part 221 of the bending part 22 in the second display module A is located not the same plane, and the arc-shaped part 221 of the first display module A and the arc-shaped part 221 of the second display module A can form an offset angle, thereby achieving the purpose of reducing the splicing frame.

[0065] In addition, due to the bending stress problem of the flexible display panel 2, in order to avoid damage to the flexible display panel 2 when bending, the maximum distance between the arc-shaped part 221 of the bending part 22 and the display part 21 in the first display module along the first direction can be greater than that in the second display module, thereby reducing the width of the splicing frame at the splicing position of the two adjacent display modules A.

[0066] Optionally, in any two adjacent display modules A, the thicknesses of the two support plates 3 along the arrangement direction of the cover plate 1 and the display module A are the same, and the shapes of the two support plates 3 are different, as shown in FIG. 9. By setting the shapes of the support plates 3 in the two adjacent display modules A to be different, instead of setting the thicknesses of the support plates 3 in the two adjacent display modules A to be different, the center line of the arc-shaped part 221 of the bending part 22 in the two adjacent display modules A is not located in the same plane parallel to the cover plate 1, and the maximum distance between the arc-shaped part 221 of the bending part 22 and the display part 21 in the first direction is different, thereby greatly reducing the width of the splicing frame at the splicing position of the two adjacent display modules A, and saving the material for manufacturing the support plate 3 and the manufacturing cost.

[0067] Specifically, in any two adjacent display modules A, the side of the two support plates 3 away from the cover plate 1 has a protrusion 31 opposite to the backfolding part 222 of the bending part 22, and the heights of the protrusions 31 on the two support plates 3 are different.

[0068] For example, as shown in FIG. 10, in the two adjacent display modules A, the height of the protrusion 31 on one support plate 3 is h11, and the height of the protrusion 31 on the other support plate 3 is h12, and h11 is less than h12. After the backfolding part 222 of the bending part 22 in the display module A is backfolded to the side of the support plate 3 away from the cover plate 1, the backfolding part 222 can be bonded to the protrusion 31 of the support plate 3. Since the heights of the protrusions 31 on the support plates 3 in the two adjacent display modules A are different, the distance between the backfolding part 222 and the display part 21 is also different, so that the center line of the arc-shaped part 221 of the bending part 22 is not located in the same plane parallel to the cover plate 1, and the maximum distance between the arc-shaped part 221 of the bending part 22 and the display part 21 in the first direction is different, thereby achieving the design of reducing the splicing frame at the splicing position of the spliced screen.

[0069] Optionally, in any two adjacent display modules A, the side of the two support plates 3 away from the cover plate 1 can have a recess 32 opposite to the backfolding part 222 of the bending part 22, and the depths of the recesses 32 on the two support plates 3 are different.

[0070] As shown in FIG. 11, in two adjacent display modules A, the depth of the recess 32 on one support plate 3 is h21, and the depth of the recess 32 on the other support plate 3 is h22, h22 is greater than h21. In the display module A, the back fold of the bending part 22 is to the side of the support plate 3 away from the cover plate 1, and the back fold part 222 can be bonded to the bottom surface of the recess 32 of the support plate 3. Since the depths of the recesses 32 on the two support plates 3 are different in the two adjacent display modules A, the distances between the back fold part 222 and the display part 21 are also different, so that the center line of the arc-shaped part 221 of the bending part 22 is not coincident with the plane parallel to the cover plate 1, and the maximum distance between the arc-shaped part 221 of the bending part 22 and the display part 21 in the first direction is different, which can achieve the design of reducing the splicing frame at the splicing position.

[0071] Optionally, in any two adjacent display modules A, the side of one support plate 3 away from the cover plate 1 has a protrusion 31 opposite to the back fold part 222 of the bending part 22, and / or the side of one support plate 3 away from the cover plate 1 has a recess 32 opposite to the back fold part 222 of the bending part 22.

[0072] For example, as shown in FIG. 12, in two adjacent display modules A, one support plate 3 can be a flat plate, and the other support plate 3 can have a protrusion 31 opposite to the back fold part 222 of the bending part 22; or as shown in FIG. 13, in two adjacent display modules A, one support plate 3 can be a flat plate, and the other support plate 3 can have a recess 32 opposite to the back fold part 222 of the bending part 22; or as shown in FIG. 14, in two adjacent display modules A, one support plate 3 can have a protrusion 31 opposite to the back fold part 222 of the bending part 22, and the other support plate 3 can have a recess 32 opposite to the back fold part 222 of the bending part 22. These three combinations of the shapes of the two adjacent support plates 3 can all achieve the purpose of reducing the splicing frame at the splicing position between the two adjacent display modules A.

[0073] Optionally, in two adjacent display modules A, the thicknesses of the two support plates 3 can also be different, and the shapes of the two support plates 3 can also be different, as long as the purpose of reducing the splicing frame at the splicing position is achieved.

[0074] It should be noted that FIGS. 10 to 14 only illustrate the shapes of the two support plates 3 in the two adjacent display modules A, and the arrangement order and relative positions of the two adjacent display modules A are not limited herein.

[0075] In the embodiments of the present application, the specific structure of the support plate 3 in each display module A in the spliced screen is not limited herein and is determined according to the actual situation.

[0076] In the embodiments of the present application, as shown in FIGS. 10-15, in the display module A, the support plate 3 can be symmetrically arranged along the first center line O, and the extension direction of the first center line is perpendicular to the arrangement direction of the arc-shaped portion 221 and the display portion 21. In the process of assembling the display module A, the symmetric design of the support plate 3 can facilitate the assembly and the manufacturing of the display module A.

[0077] Specifically, the material of the support plate 3 can be aluminum (Al), copper or other metal materials. The support plate 3 can support the flexible display panel 2 and facilitate the heat dissipation of the flexible display panel 2.

[0078] When the spliced screen is applied as a vehicle-mounted long screen, the spliced screen will be subjected to mechanical impact and other experiments before leaving the factory. In order to ensure that the bending portion 22 of the flexible display panel 2 at the splicing position of the spliced screen does not have the risk of interference caused by knocking during vibration, in the embodiments of the present application, as shown in FIG. 16, a fixing portion 8 is filled between any two adjacent display modules A, and the fixing portion 8 covers the back folding portion 222 of the bending portion 22. The fixing portion 8 is formed by using an insulating curing material. By filling the fixing portion 8 between the two adjacent display modules A, the bending portion 22 of the flexible display panel 2 can be fixed, thereby preventing the mutual interference caused by the vibration of the flexible display panel 2 during the experiment.

[0079] In the embodiments of the present application, the material of the fixing portion 8 can be a heat-conducting material, which can guide the heat generated during the operation of the flexible display panel 2 to the outside of the display module A, thereby facilitating the heat dissipation effect of the display module A.

[0080] Specifically, the material of the fixing portion 8 can be epoxy resin, silica gel or heat-conducting silica gel, or other materials, which are not limited here and are determined according to the actual situation.

[0081] Specifically, the fixing portion 8 can be formed by insert molding or coating process, for example, by injecting materials such as epoxy resin or silica gel into the splicing position of the two display modules A, and then low-temperature injection molding.

[0082] In the embodiments of the present application, as shown in FIG. 16, the display module A can further include a polarizing sheet 4, which is located between the flexible display panel 2 and the cover plate 1, and the polarizing sheet 4 covers the display portion 21 on the flexible display panel 2. The polarizing sheet 4 can adjust the light emitted by the display portion 21, thereby optimizing the display effect of the spliced screen.

[0083] Specifically, the polarizing sheet 4 can be bonded to the cover plate 1 through the optical adhesive layer 5, thereby achieving the bonding of the display module A to the cover plate 1.

[0084] In the embodiments of the present application, the display module A can further include a back film 6 and a heat dissipation adhesive layer 7. The back film 6 is located on the side of the flexible display panel 2 away from the cover plate 1, and the heat dissipation adhesive layer 7 is located between the back film 6 and the support plate 3.

[0085] The back film 6 can protect the flexible display panel 2, the heat dissipation adhesive layer 7 can bond the back film 6 and the support plate 3, and can quickly transfer the heat on the flexible display panel 2 to the support plate 3, and the support plate 3 dissipates the heat to the outside of the display module A.

[0086] In the embodiments of the present application, as shown in FIG. 17, each display module A can further include a driving unit 9, which can be a Tcon board. The driving unit 9 can be connected to the flexible display panel 2 of the display module A through a chip on film (COF) 91, and the COF 91 can be folded back to the non-light-emitting side of the display module A.

[0087] Specifically, the spliced screen can further include a master control circuit board connected to the driving unit 9 of each display module A to provide display signals for each display module A.

[0088] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A tiled screen, wherein, The display module comprises a flexible display panel and a support plate, the flexible display panel comprises a display part and n frame parts arranged around the display part, the light-out side of the display part is arranged towards the cover plate, the support plate is located on the side of the flexible display panel away from the cover plate, and n≥3. Among the n frame parts of the flexible display panel, at least the frame part adjacent to the adjacent display module is a bending part, the bending part comprises a backfolding part and an arc-shaped part, the backfolding part is backfolded to the side of the support plate away from the cover plate, and the arc-shaped part is connected between the display part and the backfolding part. Among any two adjacent display modules, the center line of the arc-shaped part of the bending part in one display module is located on a first plane, the center line of the arc-shaped part of the bending part in the other display module is located on a second plane, the first plane and the second plane are parallel to the cover plate, and the first plane and the second plane are not coincident. Among any two adjacent display modules, the maximum distance between the arc-shaped part of the bending part and the display part in one display module along a first direction is a first distance, the maximum distance between the arc-shaped part of the bending part and the display part in the other display module along the first direction is a second distance, the first distance and the second distance are not equal, and the first direction is the arrangement direction of the arc-shaped part of the bending part and the display part. Among any two adjacent display modules, the thicknesses of the two support plates along the arrangement direction of the cover plate and the display module are different. Among any two adjacent display modules, the thicknesses of the two support plates along the arrangement direction of the cover plate and the display module are the same, and the shapes of the two support plates are different.

2. The tiled screen of claim 1, wherein, Among any two adjacent display modules, the side of the two support plates away from the cover plate both has a protrusion opposite to the backfolding part of the bending part, and the heights of the protrusions on the two support plates are different.

3. The tiled screen of claim 2, wherein, Among any two adjacent display modules, the side of the two support plates away from the cover plate both has a recess opposite to the backfolding part of the bending part, and the depths of the recesses on the two support plates are different.

4. The tiled screen of claim 2, wherein, Among any two adjacent display modules, the side of one support plate away from the cover plate has a protrusion opposite to the backfolding part of the bending part, and / or the side of one support plate away from the cover plate has a recess opposite to the backfolding part of the bending part.

5. The tiled screen of claim 4, wherein, In the display module, the support plate is symmetrically arranged along a first center line, and the extension direction of the first center line is perpendicular to the arrangement direction of the arc-shaped part and the display part.

6. The tiled screen of claim 4, wherein, Between any two adjacent display modules, a fixing part is filled, and the fixing part covers the backfolding part of the bending part.

7. The tiled screen of claim 4, wherein, The fixing part is formed of an insulating curing material.

8. The tiled screen of any of claims 4-7, wherein, The material of the fixing part is a heat-conducting material.

9. The tiled screen of any of claims 1-8, wherein, ​ ​ 10. The tiled screen of claim 9, wherein, ​ 11. The tiled screen of claim 10, wherein, The material of the fixed part is epoxy resin, silica gel or heat-conducting silica gel.

12. The tiled screen of any of claims 1-11, wherein, The display module further comprises a polarizer between the flexible display panel and the cover plate, and a normal projection of the polarizer on the flexible display panel covers the display part.

13. The tiled screen of claim 12, wherein, The display module further comprises a back film and a heat dissipation adhesive layer, the back film is located on a side of the flexible display panel away from the cover plate, and the heat dissipation adhesive layer is located between the back film and the support plate.

14. The tiled screen of any of claims 1-13, wherein, The display module comprises at least three display modules arranged in sequence along a preset direction.

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