Display module and tiled display device

Abstract

The embodiment of the invention discloses a display module and a tiled display device.The display module comprises a display panel, a display panel display area and non-display areas arranged on at least two sides of the display area, each non-display area comprises a first non-display subarea and a second non-display subarea, the first non-display sub-area and the second non-display sub-area are of a transparent film layer structure. According to the display panel provided by the embodiment of the invention, a transparent frame is equivalently arranged on the periphery of the display area, when the display screen is spliced, the side edges with the transparent frame are spliced, and the metal wires are arranged on the non-spliced side edges, so that the problem that a black frame exists at the splicing position of the display screen in the related technology is at least solved; and obvious physical black seams exist at the splicing position when the picture is displayed.

Description

Technical Field

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

[0002] In recent years, large-size commercial display screens have been used more and more widely, and the market has become increasingly broad. At present, the conventional commercial large screens on the market are liquid crystal display (LCD) splicing screens. Since LCD screens require backlights to provide light sources, and there are drive lines around the screens, there will inevitably be a wider border area, that is, a non-display area, and in order to cover the drive lines, the border area is black. Therefore, the display screen after splicing has a border at the splicing position, and there is an obvious physical black seam at the splicing position when the picture is displayed, which causes a sense of fragmentation in the text or video display, thereby affecting the display effect. Summary of the invention

[0003] The embodiments of the present application provide a display panel and a spliced ​​display device to at least solve the technical problem that an obvious physical black seam exists at a splicing position when displaying an image on an existing LCD spliced ​​display screen.

[0004] On the one hand, an embodiment of the present application provides a display module, including a display panel, the display panel including a display area and a non-display area arranged on at least two sides of the display area, the non-display area including a first non-display sub-area and a second non-display sub-area, wherein the first non-display sub-area and the second non-display sub-area are transparent film layer structures.

[0005] In one embodiment, the first non-display sub-area includes: a first substrate; an insulating layer, disposed on one side of the first substrate; a supporting layer, disposed on a side of the insulating layer away from the first substrate; a transparent metal layer, disposed on a side of the supporting layer away from the insulating layer; and a second substrate, disposed on a side of the transparent metal layer away from the supporting layer.

[0006] In one embodiment, the display module also includes: a backlight source, arranged on one side of the display panel; a first polarizer, arranged between the backlight source and the display panel; a second polarizer, arranged on a side of the display panel away from the first polarizer; wherein the first polarizer and the second polarizer have their orthographic projections on the display panel covering the entire display area.

[0007] In one embodiment, the backlight source includes: a backlight assembly for providing backlight, the backlight assembly is arranged corresponding to the display area; a sealing area is arranged on at least two sides of the backlight assembly, the sealing area is arranged corresponding to the non-display area.

[0008] In one embodiment, the backlight assembly includes: a blue light emitting diode array; a quantum dot film layer, arranged on a side of the blue light emitting diode array close to the first polarizer; the display area of ​​the display panel includes: a first substrate; a liquid crystal layer, arranged on a side of the first substrate away from the backlight source; a color filter layer, arranged on a side of the liquid crystal layer away from the first substrate; and a second substrate, arranged on a side of the color filter layer away from the liquid crystal layer.

[0009] In one embodiment, the backlight assembly includes: a red, green and blue light emitting diode array; the display area of ​​the display panel includes: a first substrate; a liquid crystal layer, arranged on a side of the first substrate away from the backlight source; and a second substrate, arranged on a side of the color filter layer away from the liquid crystal layer.

[0010] In one embodiment, the first substrate and the second substrate are flexible structures.

[0011] In one embodiment, the non-display area also includes a third non-display sub-area and a fourth non-display sub-area, wherein the first non-display sub-area and the second non-display sub-area are respectively arranged on both sides of the display area along the width direction of the display panel, and the third non-display sub-area and the fourth non-display sub-area are respectively arranged on both sides of the display area along the length direction of the display panel, and the third non-display sub-area and the fourth non-display sub-area contain metal routing.

[0012] On the other hand, an embodiment of the present application further provides a spliced ​​display device, comprising: a first display module, comprising a first backlight source and a first display panel arranged on one side of the first backlight source, the first display panel comprising a first display area and a first non-display area located on one side of the first display area; a second display module, comprising a second backlight source and a second display panel arranged on one side of the second backlight source, the second display panel comprising a second display area and a second non-display area located on one side of the second display area, the first display panel and the second display panel being spliced, and a splicing seam area being included between the first non-display area and the second non-display area; a third display module, comprising a third backlight source and a third display panel arranged on one side of the third backlight source The third display panel is provided on a side of the first display panel away from the first backlight source and on a side of the second display panel away from the second backlight source, the third display panel comprises a third display area and a third non-display area located on at least one side of the third display area, the third non-display area comprises a first non-display sub-area close to the first non-display area and a second non-display sub-area close to the second non-display area; wherein, taking the thickness direction of the third display panel as a Z direction, the orthographic projection of the third display area in the Z direction covers the orthographic projection of the joint seam area in the Z direction, and the orthographic projection of the third display area in the Z direction covers the orthographic projections of the first non-display area and the second non-display area in the Z direction;

[0013] The first non-display sub-area and the second non-display sub-area are transparent film layer structures that are symmetrical to each other.

[0014] In one embodiment, the first non-display sub-area includes: a first substrate; an insulating layer, disposed on one side of the first substrate; a supporting layer, disposed on a side of the insulating layer away from the first substrate; a transparent metal layer, disposed on a side of the supporting layer away from the insulating layer; and a second substrate, disposed on a side of the transparent metal layer away from the supporting layer.

[0015] In one embodiment, the third display panel includes: a first polarizer, arranged on a side of the third display panel close to the third backlight source; a second polarizer, arranged on a side of the third display panel away from the third backlight source; wherein the orthographic projections of the first polarizer and the second polarizer on the third backlight source cover the entire third display area.

[0016] In one embodiment, a first magnetic attraction structure is disposed between the third display panel and the first display panel, and a second magnetic attraction structure is disposed between the third display panel and the second display panel.

[0017] In one embodiment, the splicing display device also includes: a frame, including side panels and a cover plate; the first display panel, the second display panel and the third display panel are arranged inside the frame, the upper surface of the third display panel facing away from the third backlight source is flush with the lower surface of the cover plate close to the first display panel or the second display panel, a flattening layer is arranged between the upper surface of the first display panel and the lower surface of the cover plate, and the flattening layer is arranged between the upper surface of the second display panel and the lower surface of the cover plate.

[0018] The beneficial effects provided by the embodiments of the present application include at least:

[0019] The embodiment of the present application provides a display module including a display panel, the display panel includes a display area and a non-display area arranged on at least two sides of the display area, the non-display area includes a first non-display sub-area and a second non-display sub-area, wherein the first non-display sub-area and the second non-display sub-area are transparent film layer structures. Through the display panel provided by the embodiment of the present application, the first non-display sub-area and the second non-display sub-area are set as a transparent film layer structure, which is equivalent to setting a transparent frame on the periphery of the display area. When splicing the display screen, the side with the transparent frame is spliced, and the metal wiring is set on the side that is not spliced, which at least solves the technical problem that the display screen has a black frame at the splicing position in the related art, and there is an obvious physical black seam at the splicing position when the picture is displayed, which causes a sense of fragmentation in the text or video display, and effectively improves the picture display effect of the spliced ​​screen.

[0020] Other beneficial effects of the embodiments of the present application will be further described in the following specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic cross-sectional structure diagram of a display panel provided in an optional embodiment of the present application;

[0022] Figure 2 is a schematic structural diagram of a display panel provided in an optional embodiment of the present application;

[0023] Figure 3 is a cross-sectional schematic diagram of a display panel provided in an optional embodiment of the present application;

[0024] Figure 4 is a schematic diagram of a display panel film layer structure provided in an optional embodiment of the present application;

[0025] Figure 5 is a structural schematic diagram of a spliced ​​display device provided in an optional embodiment of the present application;

[0026] Figure 6 It is a cross-sectional schematic diagram of a spliced ​​display device provided in an optional embodiment of the present application.

[0027] Description of Reference Numerals

[0028] 1, display panel; AA, display area; NA, non-display area;

[0029] 10, backlight source; 111, blue light diode array; 112, quantum dot film layer 112; 113, diffuser;

[0030] 20, a first polarizer;

[0031] 30, display panel; 301, first metal layer; 302, first insulating layer; 303, gate insulating layer (G-SiNx); 304, ohmic contact layer (N+a-Si); 305, second metal layer; 306, third supporting column; 307; black matrix layer (BM layer); 308, second substrate; 309, color resist layer; 31, first non-display sub-area; 311, first substrate; 312, second insulating layer; 313, supporting layer; 3131, first supporting column; 3132, second supporting column; 314, transparent metal layer; 315, frame glue; 316, gold ball; 32, second non-display sub-area; 33, third non-display sub-area; 34, fourth non-display sub-area;

[0032] 40, a second polarizer;

[0033] 100, a splicing display device; 101, a first display module; 1011, a first backlight source; 1012, a first display panel; A1, a first display area; N1, a first non-display area; 102, a second display module; 1021, a second backlight source; 1022, a second display panel; A2, a second display area; N2, a second non-display area; 103, a third display module; 1031, a third backlight source; 1032, a third display panel; A3, a third display area; N3, a third non-display area; 104, a splicing seam area; 105, a frame; 1051, a side panel; 1052, a cover panel; 106, a planarization layer; 107, a transparent colloid material. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. The described technical solutions are only used to explain and illustrate the ideas of the present application and should not be regarded as limiting the scope of protection of the present application.

[0035] In addition, the term "plurality" in the embodiments of the present application refers to two or more than two. The terms "first" and "second" in the embodiments of the present application are used to distinguish different technical features, and do not represent any order, quantity or importance.

[0036] The directional terms mentioned in this application, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are only directions in the drawings. The directional terms used in this article are used to explain and illustrate this application, and are not used to limit the scope of protection of this application.

[0037] In the drawings, components with the same structure are represented by the same numerical labels, and components with similar structures or functions are represented by similar numerical labels. In addition, for the convenience of understanding and description, the size and thickness of each component shown in the drawings are arbitrarily shown, and the present application does not limit the size and thickness of each component.

[0038] The various embodiments provided in this application are similar, and features in different embodiments may be combined with each other.

[0039] The order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0040] Reference Figure 1 As shown, an embodiment of the present application provides a display panel 1, including a backlight source 10, a first polarizer 20, a display panel 30 and a second polarizer 40.

[0041] The first polarizer 20 is disposed on one side of the backlight source 10 ; the display panel 30 is disposed on the side of the first polarizer 20 away from the backlight source 10 ; and the second polarizer 40 is disposed on the side of the display panel 30 away from the first polarizer 20 .

[0042] Polarizers can control the polarization direction of the outgoing light beam. When natural light passes through a polarizer, the light whose vibration direction is perpendicular to the transmission axis of the polarizer will be absorbed, and only the polarized light whose vibration direction is parallel to the transmission axis of the polarizer will be transmitted. LCD screens rely on the optical rotation effect of liquid crystal. Under the action of an electric field, the optical rotation effect of liquid crystal will change. Only by using linear polarized light passing through liquid crystal can the on / off control of light be achieved, and the generation of linear polarized light depends on polarizers.

[0043] Reference Figure 2 As shown, the display panel 30 includes a display area AA and a non-display area NA located at least on one side of the display area, and the non-display area includes: a first non-display sub-area 31 and a second non-display sub-area 32 respectively arranged on both sides of the display area along the width direction of the display panel, and a third non-display sub-area 33 and a fourth non-display sub-area 34 respectively arranged on both sides of the display area along the length direction of the display panel. Among them, the first non-display sub-area 31 and the second non-display sub-area 32 are both transparent film layer structures, and the third non-display sub-area 33 and the fourth non-display sub-area 34 contain metal wiring.

[0044] In the display panel provided in the embodiment of the present application, the first non-display sub-area and the second non-display sub-area are configured as a transparent film layer structure, which is equivalent to providing a transparent border (border, corresponding to the NA area) on the periphery of the display area. When the display screen is spliced, the sides with the transparent border are spliced, and metal wiring is provided on the non-spliced ​​sides. This at least solves the technical problem in the related art that the display screen has a black border at the splicing position, and there is an obvious physical black seam at the splicing position when the picture is displayed, which leads to a sense of fragmentation in the text or video display, thereby effectively improving the picture display effect of the spliced ​​screen.

[0045] Reference Figure 3 As shown, in an optional embodiment, the first non-display sub-area 31 includes: a first substrate 311; an insulating layer 312, arranged on one side of the first substrate 311; a supporting layer 313, arranged on the side of the insulating layer 312 away from the first substrate 311; a transparent metal layer 314, arranged on the side of the supporting layer 313 away from the insulating layer 312; and a second substrate 308, arranged on the side of the transparent metal layer 314 away from the supporting layer 313.

[0046] It should be noted that the film structure of the second non-display sub-area 32 is consistent with that of the first non-display sub-area 31. The third non-display sub-area 33 and the fourth non-display sub-area 34 can be provided with fewer film layers relative to the structure of the first non-display sub-area 31, and a metal wiring layer can be added. The metal wiring layer can include a gate drive line and a data drive line. The gate of the TFT in the display panel provided in the embodiment of the present application is a V-gate gate structure, so that the gate drive wiring can be arranged on the upper and lower sides of the display panel, for example, Figure 2 The third non-display sub-area 33 and the fourth non-display sub-area 34 are shown.

[0047] Reference Figure 3 As shown, in one embodiment, the first polarizer 20 and the second polarizer 40 cover the entire display area and the intersection of the display area and the non-display area in the orthographic projection of the backlight source 10. The polarizer can extend to the NA area (such as Figure 3 The second polarizer 40 shown in FIG. 1 may also cover the display area (eg Figure 3 As shown in the first polarizer 20), in the embodiment of the present application, the polarizer is attached to the edge of the AA area as much as possible and does not cover the NA area, that is, to maintain sufficient light transmittance at the transparent frame position.

[0048] Depending on the different semiconductor materials of the TFT active layer, the current mainstream TFT technology can be divided into hydrogenated amorphous silicon (a-Si:H) TFT, low-temperature polycrystalline silicon (LTPS) TFT and amorphous oxide (AOS) TFT. Figure 3Take amorphous silicon TFT as an example for schematic explanation. It includes a gate, a source, and a drain. The basic composition includes two layers of metal (usually aluminum Al, molybdenum Mo and copper Cu), two insulating layers (usually hydrogenated silicon nitride SiNx:H), an active layer (usually hydrogenated amorphous silicon a-Si:H) and an ohmic contact layer (n+a-Si:H) between the semiconductor and metal layers.

[0049] Reference Figure 3 As shown, the first polarizer 20 and the second polarizer 40 are respectively arranged on the opposite sides of the first substrate 311 and the second substrate 308. In the AA region, the first metal layer 301 (gate metal), the first insulating layer 302, the gate insulating layer 303, the ohmic contact layer 304, the second metal layer 305 and the color resist layer 309 are stacked in sequence on one side of the first substrate 311, and the black matrix layer 307 (BM layer) and the transparent metal layer 314 (ITO) are stacked on one side of the second substrate 308, and the third support column 306 is arranged between the color resist layer 309 and the transparent metal layer 314. In the NA region, the second insulating layer 312 and the support layer 313 (including the first support column 3131 and the second support column 3132) are stacked in sequence on one side of the first substrate 311, and the sealant 315 is encapsulated between the second insulating layer 312 and the transparent metal layer 314. The sealant 315 is a translucent material, mainly including epoxy resin and acrylic acid. Gold balls 316 (also called microballs, spacers) are arranged between two transparent substrates as liquid crystal spacer materials to ensure the distance between the substrates, that is, to ensure the thickness of the liquid crystal layer. The left and right borders of the display panel 1 are transparent border designs, that is, the wiring and BM design are removed. The terrain here is leveled by the support layer 313 to prevent fragmentation during lamination. The support layer 313 can be realized by a dummy PS film layer (polystyrene film).

[0050] In one embodiment, the backlight source 10 includes: a backlight assembly for providing backlight, the backlight assembly is arranged corresponding to the display area; and a sealing area, arranged on at least one side of the backlight assembly, the sealing area is arranged corresponding to the non-display area.

[0051] Reference Figure 4As shown, in one embodiment, an optional implementation of the backlight source 10 is that the lower backlight uses a printed circuit board (PCB) to directly display the blue light beads of the light board, and a QD film + diffuser is attached to the upper part to convert the blue light into white light. At this time, the backlight assembly includes: a blue light diode array 111; a quantum dot film layer 112, which is arranged on the side of the blue light diode array 111 close to the first polarizer. A diffuser 113 is arranged between the quantum dot film layer 112 and the display panel 30 to uniformize the backlight brightness, wherein the diffuser 113 may include a plurality of superimposed arrangements. The display area of ​​the display panel 30 includes: a first substrate; a liquid crystal layer, which is arranged on the side of the first substrate away from the backlight source; a color filter layer, which is arranged on the side of the liquid crystal layer away from the first substrate; and a second substrate, which is arranged on the side of the color filter layer away from the liquid crystal layer.

[0052] In an optional embodiment, another optional implementation of the backlight source 10 is a PCB mini LED (including RGB light-emitting diodes) backlight plus a black and white liquid crystal box solution, that is, the PCB mini backlight adopts an RGB lamp bead solution, the upper display panel has no color filter layer design, and the color display is displayed by the lower backlight. In this case, the backlight component includes: a red, green and blue light-emitting diode array; the display area of ​​the display panel includes: a first substrate; a liquid crystal layer, which is arranged on the side of the first substrate away from the backlight source; and a second substrate, which is arranged on the side of the color filter layer away from the liquid crystal layer.

[0053] In an optional embodiment, the first substrate and the second substrate are flexible structures. In this case, a layer of flexible substrate is first plated on the glass substrate, and then the circuit design is performed on the substrate. After the upper and lower substrates of the display panel are combined, the glass substrate is removed by glass peeling technology to form a flexible LCD.

[0054] Reference Figure 5 As shown, another embodiment of the present application further provides a spliced ​​display device 100, including: a first display panel 101, a second display panel 102 and a third display panel 103. It should be noted that the spliced ​​display device can also include more display panels. The present application embodiment takes the splicing of LCD display screens as an example for explanation. A display panel 1 (such as a first display panel 101, a second display panel 102 and a third display panel 103) provided in the above embodiment and including a transparent frame is spliced ​​between every two LCD display screens. Figure 5 The third display panel 103 shown in the figure can be spliced ​​with several display panels according to the actual application scenario, and the embodiment of the present application does not limit this. The display panel 1 included in any of the above embodiments can be applied to the spliced ​​display device of this embodiment, and the content already described will not be repeated here.

[0055] Reference Figure 6As shown, the first display panel 101 includes a first backlight source 1011 and a first display panel 1012 disposed on one side of the first backlight source 1011, and the first display panel 1012 includes a first display area A1 and a first non-display area N1 located on one side of the first display area A1. The second display panel 102 includes a second backlight source 1021 and a second display panel 1022 disposed on one side of the second backlight source 1021, and the second display panel 1022 includes a second display area A2 and a second non-display area N2 located on one side of the second display area. The first display panel 101 and the second display panel 102 are spliced, and a splicing seam area 104 is included between the first non-display area N1 and the second non-display area N2. The third display panel 103 includes a third backlight source 1031 and a third display panel 1032 disposed on one side of the third backlight source 1031. The third display panel 103 is disposed on the side of the first display panel 1012 away from the first backlight source 1011 and on the side of the second display panel 1022 away from the second backlight source 1021. The third display panel 1032 includes a third display area A3 and a third non-display area N3 located on at least one side of the third display area A3. The third non-display area N3 includes a first non-display sub-area 31 close to the first non-display area N1 and a second non-display sub-area 32 close to the second non-display area N2. Both the first non-display sub-area 31 and the second non-display sub-area 32 are transparent film layer structures.

[0056] Taking the thickness direction of the third display panel 103 as the Z direction, the orthographic projection of the third display area A3 in the Z direction covers the orthographic projection of the joint seam area 104 in the Z direction, and the orthographic projection of the third display area A3 in the Z direction covers the orthographic projection of the first non-display area N1 and the second non-display area N2 in the Z direction.

[0057] Through the splicing display device provided in this embodiment, an LCD display with a transparent frame is attached above the black seam position of a conventional LCD splicing. This display uses PCB mini LED as a backlight source, and a panel with a transparent frame is attached on the top. The transparent frame extends to the AA area of ​​the conventional LCD, and can display the picture in the LCD below, thereby effectively eliminating the black seam area when the conventional LCD panels are spliced, and avoiding the sense of picture fragmentation.

[0058] In an optional embodiment, the first non-display sub-area 31 includes: a first substrate; a passivation layer, disposed on one side of the first substrate; an insulating layer, disposed on the side of the passivation layer away from the first substrate; a supporting layer, disposed on the side of the insulating layer away from the passivation layer; a transparent metal layer, disposed on the side of the supporting layer away from the insulating layer; and a second substrate, disposed on the side of the transparent metal layer away from the supporting layer.

[0059] In an optional embodiment, the third display panel 103 includes: a first polarizer, which is arranged on a side of the third display panel close to the third backlight source; and a second polarizer, which is arranged on a side of the third display panel away from the third backlight source; wherein the orthographic projections of the first polarizer and the second polarizer on the third backlight source cover the entire third display area and the position where the third display area intersects with the third non-display area.

[0060] In an optional embodiment, a first magnetic attraction structure (not shown) is disposed between the third display panel 103 and the first display panel 1012 , and a second magnetic attraction structure (not shown) is disposed between the third display panel 103 and the second display panel 1022 .

[0061] In an optional embodiment, the spliced ​​display device 100 further includes: a frame 105, including a side panel 1051 and a cover plate 1052. The first display panel 101, the second display panel 102 and the third display panel 103 are arranged inside the frame 105, the upper surface of the third display panel 103 away from the third backlight source is flush with the lower surface of the cover plate 1052 close to the first display panel or the second display panel, a planarization layer 106 is arranged between the upper surface of the first display panel 101 and the lower surface of the cover plate 1052, that is, the height difference between the upper surface of the first display panel 101 and the lower surface of the cover plate 1052 can be filled by the planarization layer 106, and the planarization layer 106 is arranged between the upper surface of the second display panel 102 and the lower surface of the cover plate 1052, that is, the height difference between the upper surface of the second display panel 102 and the lower surface of the cover plate 1052 can be filled by the planarization layer 106.

[0062] The planarization layer 106 in the embodiment of the present application is used to smooth the surface of the substrate to reduce surface roughness and unevenness, thereby providing better conditions for subsequent manufacturing processes. The materials of the planarization layer generally include oxides, nitrides, polysilicon, polymers, etc. The selection of these materials depends on the required electrical properties, mechanical properties, and chemical properties. The manufacturing process of the planarization layer includes chemical vapor deposition (CVD), physical vapor deposition (PVD), spin coating, spray coating, etc. These processes can ensure that the planarization layer is evenly distributed on the substrate to form a smooth surface. In the embodiment of the present application, the planarization layer 106 is used to ensure the uniformity and consistency of the display panel.

[0063] The assembly process of the spliced ​​display device 100 in the embodiment of the present application may include:

[0064] The first display panel 101 and the second display panel 102 are respectively designed to be fully laminated for flattening layer (CG) lamination and mechanical assembly;

[0065] The third display panel 103 in the middle is based on a glass substrate, on which a PCB mini backlight is attached, and a transparent gelatin material 107 is filled at the step difference position between the transparent frame and the PCB mini backlight through a mold, so that the lower surface of the transparent gelatin material 107 is flush with the lower surface of the PCB mini backlight;

[0066] The third display panel 103 is fixed to the splicing seam area 104 of the spliced ​​screen of the first display panel 101 and the second display panel 102 by means of magnetic attraction and adhesion of the upper and lower edges, so that it covers the splicing seam area 104 and the non-display area of ​​the first display panel 101 and the second display panel 102. The transparent frame of the third display panel 103 extends to the display area of ​​the first display panel 101 and the second display panel 102 below, and can display the image of the LCD below.

[0067] The splicing display device provided in the embodiment of the present application can eliminate the splicing seams and realize an all-in-one display; LCD high-definition display is adopted, and the spliced ​​screens are all LCD display screens with the same pixel interval, and there is no difference between the spliced ​​screens in terms of viewing angle consistency, dark state uniformity, display color consistency, etc., and it has a good display effect; LCD splicing display can achieve high-resolution display with fine picture quality, and its cost is lower than that of LED splicing screen; moreover, compared with the large all-in-one screen, the above-mentioned assembled splicing display device can be disassembled into several parts for transportation, and then assembled at the client, which is convenient for transportation and reduces transportation costs.

[0068] The above-mentioned spliced ​​display device can be: a large-screen display, a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, or any other product or component with a display function.

[0069] Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display module, characterized in that: A display panel is included, wherein the display panel includes a display area and a non-display area arranged on at least two sides of the display area, the non-display area includes a first non-display sub-area and a second non-display sub-area, wherein the first non-display sub-area and the second non-display sub-area are transparent film layer structures.

2. The display module according to claim 1, characterized in that: The first non-display sub-area comprises: a first substrate; An insulating layer, disposed on one side of the first substrate; A supporting layer, disposed on a side of the insulating layer away from the first substrate; A transparent metal layer is disposed on a side of the support layer away from the insulating layer; The second substrate is arranged on a side of the transparent metal layer away from the supporting layer.

3. The display module according to claim 1, characterized in that: The display module further includes: A backlight source, arranged on one side of the display panel; A first polarizer, disposed between the backlight source and the display panel; A second polarizer is arranged on a side of the display panel away from the first polarizer; The orthographic projections of the first polarizer and the second polarizer on the display panel cover the entire display area.

4. The display module according to claim 3, characterized in that: The backlight source comprises: A backlight assembly, used for providing backlight, wherein the backlight assembly is arranged corresponding to the display area; The sealing area is arranged on at least two sides of the backlight assembly, and the sealing area is arranged corresponding to the non-display area.

5. The display module according to claim 4, characterized in that: The backlight assembly comprises: Blue light diode array; A quantum dot film layer, disposed on a side of the blue light diode array close to the first polarizer; The display area of ​​the display panel includes: a first substrate; A liquid crystal layer, disposed on a side of the first substrate facing away from the backlight source; A color filter layer, disposed on a side of the liquid crystal layer away from the first substrate; The second substrate is arranged on a side of the color filter layer away from the liquid crystal layer.

6. The display module according to claim 4, characterized in that: The backlight assembly comprises: Red, green and blue light emitting diode array; The display area of ​​the display panel includes: a first substrate; A liquid crystal layer, disposed on a side of the first substrate facing away from the backlight source; The second substrate is arranged on a side of the color filter layer away from the liquid crystal layer.

7. The display module according to claim 2, characterized in that: The first substrate and the second substrate are flexible structures.

8. The display module according to any one of claims 1 to 7, characterized in that: The non-display area also includes a third non-display sub-area and a fourth non-display sub-area, wherein the first non-display sub-area and the second non-display sub-area are respectively arranged on both sides of the display area along the width direction of the display panel, and the third non-display sub-area and the fourth non-display sub-area are respectively arranged on both sides of the display area along the length direction of the display panel, and the third non-display sub-area and the fourth non-display sub-area contain metal wiring.

9. A splicing display device, characterized in that: include: A first display module, comprising a first backlight source and a first display panel disposed on one side of the first backlight source, wherein the first display panel comprises a first display area and a first non-display area located on one side of the first display area; A second display module includes a second backlight source and a second display panel disposed on one side of the second backlight source, the second display panel includes a second display area and a second non-display area located on one side of the second display area, the first display panel and the second display panel are spliced, and a splicing seam area is included between the first non-display area and the second non-display area; A third display module, comprising a third backlight source and a third display panel disposed on one side of the third backlight source, wherein the third display panel is disposed on a side of the first display panel away from the first backlight source and on a side of the second display panel away from the second backlight source, wherein the third display panel comprises a third display area and a third non-display area located on at least one side of the third display area, wherein the third non-display area comprises a first non-display sub-area close to the first non-display area and a second non-display sub-area close to the second non-display area; Wherein, taking the thickness direction of the third display panel as the Z direction, the orthographic projection of the third display area in the Z direction covers the orthographic projection of the joint seam area in the Z direction, and the orthographic projection of the third display area in the Z direction covers the orthographic projections of the first non-display area and the second non-display area in the Z direction; The first non-display sub-area and the second non-display sub-area are transparent film layer structures that are symmetrical to each other.

10. The splicing display device according to claim 9, characterized in that: The first non-display sub-area comprises: a first substrate; An insulating layer, disposed on one side of the first substrate; A supporting layer, disposed on a side of the insulating layer away from the first substrate; A transparent metal layer is disposed on a side of the support layer away from the insulating layer; The second substrate is arranged on a side of the transparent metal layer away from the supporting layer.

11. The splicing display device according to claim 9, characterized in that: The third display panel comprises: A first polarizer, arranged on a side of the third display panel close to the third backlight source; A second polarizer is arranged on a side of the third display panel away from the third backlight source; The orthographic projections of the first polarizer and the second polarizer on the third display panel cover the entire third display area.

12. The splicing display device according to claim 9, characterized in that: A first magnetic attraction structure is disposed between the third display panel and the first display panel, and a second magnetic attraction structure is disposed between the third display panel and the second display panel.

13. The splicing display device according to claim 9, characterized in that: The splicing display device also includes: A frame, including side panels and a cover panel; The first display panel, the second display panel and the third display panel are arranged inside the frame, the upper surface of the third display panel facing away from the third backlight source is flush with the lower surface of the cover plate close to the first display panel or the second display panel, a planarization layer is arranged between the upper surface of the first display panel and the lower surface of the cover plate, and the planarization layer is arranged between the upper surface of the second display panel and the lower surface of the cover plate.

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