Display device and manufacturing method thereof

Abstract

The present invention addresses the problem of providing a display device having a rear support and a plurality of display panels, and having a structure capable of improving dimensional accuracy and easily absorbing external impact, and a method for manufacturing the display device. The solution is that a plurality of rear supporting bodies (10A, 10B) made of metal are connected through a resin connecting part (21). Backlight units (35A, 35B) are housed in housing recesses (11) of the rear support bodies (10A, 10B). A cover plate (30) that covers the front of all of the rear supports (10A, 10B) is provided, and a plurality of display panels (31A, 31B) are joined to the rear surface (30b) of the cover plate (30). The cover plate (30) is bonded to the front surface (14) of each of the rear supports (10A, 10B) by an adhesive layer (4).

Description

Technical Field

[0001] The present invention relates to a display device having a plurality of display panels and a method for manufacturing the same. Background Art

[0002] An invention related to an in-vehicle display device is described in Patent Document 1. As Figure 1 shown, the display unit of this in-vehicle display device is provided inside the vehicle. The display unit has a plurality of display panels and a holder that holds the plurality of display panels. In paragraph

[0024] , it is described that the holder has a plurality of holding portions, the display panels are fixed to the respective holding portions by an adhesive or screw fastening, and the holder is made of a resin material. Further, in Figure 3 and Figure 11 , a display unit in which the holder has a curved shape is described.

[0003] Prior Art Documents:

[0004] Patent Documents:

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2021-138342 Summary of the Invention

[0006] Problems to be Solved by the Invention:

[0007] In the in-vehicle display device described in Patent Document 1, the following problems exist.

[0008] (1) Since a plurality of display panels are held by the holder in a horizontal arrangement, as Figure 1 shown, the length dimension in the horizontal direction of the holder is very large. Therefore, it is difficult to maintain high dimensional accuracy when manufacturing the holder, and in particular, it is difficult to ensure the flatness of the surface on which the display panels are located with high precision.

[0009] (2) In Patent Document 1, since the holder that holds a plurality of display panels and has a large horizontal dimension is formed of a resin material, the holder is likely to remain deformed or warped during molding, making it difficult to achieve product uniformity, and it is also likely to cause a phenomenon such as a part warping from the fixing portion when fixed inside the vehicle. To solve this problem, it is preferable to form the holder of a metal material. However, in the case of holding a plurality of display panels with a holder integrally formed of metal, if display noise or the like is generated on a certain display panel due to electrostatic discharge (ESD) when operating the display panel with a finger, the static electricity is likely to propagate in the metal holder and affect other display panels.

[0010] (3) As in Figure 3 and Figure 11As shown, when using a holding body with a curved shape, in the case of pasting a cover plate such as a glass plate on the front surface, it is necessary to pre-bend the cover plate corresponding to the curvature of the holding body, etc., and the assembly operation becomes very complicated.

[0011] The present invention is used to solve the above-mentioned existing problems, and its object is to provide a display device that can maintain high overall dimensional accuracy even in a structure with multiple display panels, and can prevent the spread of the influence caused by electrostatic discharge between the multiple display panels.

[0012] In addition, the object of the present invention is to provide a manufacturing method of a display device that can manufacture a structure in which multiple display panels are covered by a common cover plate with high dimensional accuracy, and can be relatively easily manufactured even in a structure in which adjacent display panels are arranged at an angle other than 180 degrees.

[0013] Means for solving the problems:

[0014] The present invention is a display device having a rear support body, a light-transmissive cover plate fixed to the front of the rear support body, and a display panel provided between the rear support body and the cover plate. It is characterized in that a plurality of the rear support bodies are provided, the plurality of rear support bodies are connected via a resin connection part, the front of the plurality of rear support bodies is covered by the cover plate, the cover plate is fixed to each of the rear support bodies, and an individual display panel is provided for each of the rear support bodies.

[0015] Preferably, the display device of the present invention is provided with a resin frame continuous along the outer periphery of the plurality of rear support bodies connected by the resin connection part, and the resin frame is integrally formed with the resin connection part.

[0016] Preferably, in the display device of the present invention, at least two of the rear support bodies have the same shape and the same size.

[0017] Alternatively, in the display device of the present invention, a recess recessed forward or backward is formed in the resin connection part.

[0018] Preferably, the display device of the present invention is provided with a connection support member that is fixed to the rear parts of adjacent rear support bodies across the resin connection part. Through the connection support member, adjacent rear support bodies can be positioned relative to each other in the front-rear direction.

[0019] Alternatively, in the display device of the present invention, a recess recessed forward or backward is formed in the connection support member.

[0020] Alternatively, in the display device of the present invention, the front surfaces of adjacent rear supports connected by the resin connection part are set at an angle other than 180 degrees.

[0021] The display device of the present invention is, for example, a liquid crystal display panel as the display panel, and the backlight unit is supported in each of the rear supports.

[0022] In addition, the present invention provides a method for manufacturing a display device, which has a rear support, a light-transmissive cover plate fixed in front of the rear support, and a display panel provided between the rear support and the cover plate. The manufacturing method is characterized in that it includes:

[0023] (a) A step of using a plurality of rear supports and connecting the rear supports to each other by a resin connection part; and

[0024] (b) A step of covering the front of the plurality of rear supports connected by the resin connection part with the cover plate and fixing the cover plate to each of the rear supports,

[0025] Each of the rear supports is provided with an individual display panel.

[0026] Preferably, the method for manufacturing a display device of the present invention includes a step of integrally forming a resin frame continuous along the outer periphery of the plurality of rear supports connected by the resin connection part with the resin connection part.

[0027] The method for manufacturing a display device of the present invention integrally forms the resin connection part and the resin frame by an insert molding method, for example.

[0028] Preferably, the method for manufacturing a display device of the present invention includes a step of fixing a connection support member across the resin connection part to the rear parts of adjacent rear supports, so as to position the adjacent rear supports relative to each other in the front-rear direction through the connection support member.

[0029] Furthermore, the present invention provides a method for manufacturing a display device, which has a rear support, a light-transmissive cover plate fixed in front of the rear support, and a display panel provided between the rear support and the cover plate. The manufacturing method is characterized in that it includes:

[0030] (a) A step of using a plurality of rear supports and connecting the rear supports to each other by a resin connection part;

[0031] (b) A step of covering the front of the plurality of rear supports connected by the resin connection part with the cover plate and fixing the cover plate to each of the rear supports;

[0032] (c) After the step of (b), a step of deforming the resin connecting portion and the cover plate so that the front surfaces of the adjacent rear support bodies connected by the resin connecting portion form an angle other than 180 degrees; and

[0033] (d) A step of fixing the connecting support member across the resin connecting portion to the rear portions of the respective adjacent rear support bodies, thereby fixing the relative positions of the adjacent rear support bodies.

[0034] Preferably, the manufacturing method of the above display device also includes: a step of integrally forming a resin frame continuous with the outer periphery of the plurality of rear support bodies connected by the resin connecting portion, with the resin connecting portion.

[0035] Advantages of the Invention:

[0036] In the display device of the present invention, the size of each rear support body is smaller than the size of the entire display device. Therefore, the dimensional accuracy of each rear support body can be improved, especially the flatness can be improved, and large warping is not likely to occur. Therefore, the overall warping of the display device formed by connecting a plurality of rear support bodies by a resin connecting portion also becomes smaller, and it is not likely to occur that a part of the rear support body warps from the mounting portion when mounted on a vehicle or the like. In addition, assuming that the rear support body is made of metal, even if an electrostatic discharge is applied to a certain display panel, since there is a resin connecting portion between adjacent rear support bodies, it is easy to prevent the spread of static electricity to other rear support bodies.

[0037] In the manufacturing method of the display device of the present invention, a resin connecting portion connecting adjacent rear support bodies or a frame portion surrounding the outer periphery of the rear support body is formed by an insert molding method or the like. Thus, a support connecting body formed by connecting a plurality of rear support bodies can be manufactured with high precision by a relatively easy process. In addition, a structure in which adjacent rear support bodies are arranged at an angle other than 180 degrees, that is, an angle less than 180 degrees or more than 180 degrees, can also be easily realized. Description of the Drawings

[0038] Figure 1 It is a perspective view of the display device according to the first embodiment of the present invention as viewed from the front.

[0039] Figure 2 It is a perspective view of the display device according to the first embodiment of the present invention as viewed from the rear.

[0040] Figure 3 It is an exploded perspective view of the display device according to the first embodiment of the present invention, showing each component separated and viewed from the front.

[0041] Figure 4It is a perspective view showing two rear supports constituting the display device according to the first embodiment of the present invention from the front and the backlight units provided in each rear support.

[0042] Figure 5 It is Figure 4 A cross-sectional view obtained by cutting the rear support and the backlight unit shown with line V-V.

[0043] Figure 6 It is Figure 2 A partial cross-sectional view obtained by cutting the display device according to the first embodiment of the present invention shown with line VI-VI. (A) shows the state before pasting the cover plate in front of the rear support, and (B) shows the state where the cover plate is pasted in front of the rear support.

[0044] Figure 7 It is Figure 6 A partial cross-sectional view obtained by cutting the display device shown in (B) with line VII-VII.

[0045] Figure 8 It is Figure 2 A partial cross-sectional view obtained by cutting the display device according to the first embodiment of the present invention shown with line VIII-VIII. (A) shows the state before pasting the cover plate in front of the rear support, and (B) shows the state where the cover plate is pasted in front of the rear support.

[0046] Figure 9 It is Figure 2 A partial cross-sectional view obtained by cutting the display device according to the first embodiment of the present invention shown with line IX-IX. (A) shows the state before pasting the cover plate in front of the rear support, and (B) shows the state where the cover plate is pasted in front of the rear support.

[0047] Figure 10 It is a perspective view of the display device according to the second embodiment of the present invention observed from the front.

[0048] Figure 11 It is a perspective view of the display device according to the second embodiment of the present invention observed from the rear.

[0049] Figure 12 It is Figure 11 A partial cross-sectional view obtained by cutting the display device according to the second embodiment of the present invention shown with line XII-XII.

[0050] Figure 13 It shows the manufacturing method of the display device according to the third embodiment of the present invention, and is a plan view showing the process of pasting the cover plate on the support connection body formed by connecting three rear supports.

[0051] Figure 14A manufacturing method of a display device according to a third embodiment of the present invention is a plan view showing a process of pasting a cover plate on a support connection body formed by connecting three rear support bodies, and further deforming a resin connection part and the cover plate so that an angle of a front surface of adjacent rear support bodies is less than 180 degrees.

[0052] Figure 15 It shows Figure 14 An enlarged cross-sectional view of an XV part showing a deformed state of a resin connection part of the display device shown.

[0053] Figure 16 It shows Figure 15 A partial cross-sectional view showing a state in which a connection support member is mounted on the display device shown and the relative positions of adjacent rear support bodies are fixed.

[0054] Figure 17 It shows another structural example of a display device according to a third embodiment of the present invention, which is a plan view showing a display device using a support connection body formed by connecting three rear support bodies, deforming a resin connection part and a cover plate, and setting an angle of a front surface of adjacent rear support bodies to be more than 180 degrees and less than 180 degrees.

[0055] Figure 18 For explaining the shock absorption effect of the display device according to the first embodiment of the present invention, it is a partial cross-sectional view of the same part as Figure 6 (B) thereof.

[0056] Figure 19 It is a partial cross-sectional view of the same part as Figure 12 for explaining the shock absorption effect of the display device according to the second embodiment of the present invention. (A) shows the state before the impact action, and (B) shows the state after the impact action.

[0057] Figure 20 It is a front view of a display device according to a fourth embodiment of the present invention as viewed from the front.

[0058] Explanation of reference numerals:

[0059] 1 Display device according to the first embodiment

[0060] 2 Support connection body

[0061] 3 Cover assembly

[0062] 4 Adhesive layer

[0063] 10A, 10B, 10C Rear support bodies

[0064] 10a Opposite side

[0065] 10b Upper side

[0066] Lower side of 10c

[0067] Left side of 10d

[0068] Right side of 10e

[0069] 15, 16, 17, 18 Latching protrusions

[0070] 20 Resin molded body

[0071] 21 Resin connecting part

[0072] 22 Upper frame (resin frame)

[0073] 23 Lower frame (resin frame)

[0074] 24 Left frame (resin frame)

[0075] 25 Right frame (resin frame)

[0076] 30 Cover plate

[0077] 31A, 31B, 31C Display panel

[0078] 35A, 35B, 35C Backlight unit

[0079] 40 Connecting and supporting component

[0080] 42a Positioning surface

[0081] 101 Display device of the second embodiment

[0082] 102 Support connecting body

[0083] 103 Cover assembly

[0084] 120 Resin molded body

[0085] 121 Resin connecting part

[0086] 140 Connecting and supporting component

[0087] 142a Front - rear positioning surface

[0088] 142b Left - right positioning surface

[0089] 201, 211 Display device of the third embodiment

[0090] 202 Support connecting body

[0091] 203 Cover assembly

[0092] 240 Connecting and supporting component

[0093] 242a Front - rear positioning surface

[0094] 242b Left - right positioning surface

[0095] 301 Display device of the fourth embodiment

[0096] 302 Support connecting body

[0097] 441, 442 Connecting support body Detailed implementation manners

[0098] <Display device 1 of the first embodiment>

[0099] Figure 1 and Figure 2 Fig. shows the overall structure of the display device 1 of the first embodiment of the present invention. For the display device 1, the Y1 - Y2 direction is the front - rear direction, the Y1 direction is the front as the display direction, and the Y2 direction is the rear. The X1 - X2 direction is the lateral direction, the X1 direction is the left direction, and the X2 direction is the right direction. The Z1 - Z2 direction is the up - down direction, the Z1 direction is the up direction, and the Z2 direction is the down direction. The display device 1 is a vehicle - mounted display device, which is arranged on the instrument panel or dashboard in the front of the vehicle compartment, with the front (Y1 direction) facing the inside of the compartment, and the occupant can visually observe the display content. However, the display device 1 can also be used at home or in an office, or used in a game center, etc.

[0100] As Figure 3 shown in the exploded perspective view, the display device 1 is composed of a support connecting body 2 and a cover assembly 3 covering the front (Y1 direction) thereof. The support connecting body 2 has two rear support bodies 10A, 10B, and a resin molded body 20 fixed to the two rear support bodies 10A, 10B. As Figure 4 shown, the two rear support bodies 10A, 10B maintain an independent form, but the rear support body 10A and the rear support body 10B have the same shape and the same size. The rear support bodies 10A, 10B are formed of a metal material, and are die - cast, for example, by using a magnesium alloy, an aluminum alloy, or a zinc alloy, etc. Alternatively, the rear support bodies 10A, 10B can also be formed by stamping a galvanized steel sheet, etc.

[0101] As Figure 3 and Figure 4 shown, the shape of the two rear support bodies 10A, 10B, when viewed from the front, is a rectangle such as a square or a rectangle. As Figure 5 shown in the sectional view, the rear support body 10A and the rear support body 10B are housings, and have a storage recess 11 that is open toward the front (Y1 direction). The shape of the storage recess 11, when viewed from the front, is a rectangle. As Figure 2 and Figure 5As shown, on the rear surfaces 12 of the rear support bodies 10A and 10B facing rearward (Y2 direction), fixing protrusions 13 are integrally formed at multiple locations, and internal threaded holes 13a are formed in the fixing protrusions 13. When Figure 1 and Figure 2 the display device 1 shown is provided inside the vehicle compartment, it is fixed by threadedly fastening the above-mentioned fixing protrusions 13 to a fixing plate provided inside the instrument panel or dashboard.

[0102] As Figure 2 shown, in the support connecting body 2, two rear support bodies 10A and 10B and a resin molded body 20 are integrated by an insert molding method. In the insert molding method, with the two rear support bodies 10A and 10B arranged in the cavity of a mold, molten resin is injected into the cavity to form the resin molded body 20, and the two rear support bodies 10A and 10B are combined and integrated with the resin molded body 20. The resin molded body 20 is formed of a thermoplastic resin such as PC (polycarbonate) resin or ABS resin, and is preferably formed of a thermoplastic elastomer (TPE) such as a polyester-based thermoplastic elastomer (TPC). Since the rear support bodies 10A and 10B are made of metal, the elastic modulus (tensile elastic modulus, shear elastic modulus, or bulk elastic modulus) of the resin molded body 20 is lower than that of each of the rear support bodies 10A and 10B. In addition, as long as the elastic modulus of the rear support bodies 10A and 10B is higher than that of the resin molded body 20, the rear support bodies 10A and 10B may also be injection molded from a hard resin material. However, in order to maintain high dimensional accuracy such as flatness, the rear support bodies 10A and 10B are preferably made of metal.

[0103] As Figure 3 shown, the resin molded body 20 has: a resin connecting portion 21 that is in close contact with the opposing side 10a on the right side of the left rear support body 10A and the opposing side 10a on the left side of the right rear support body 10B to join the opposing sides 10a to each other, an upper frame 22 that is in close contact with the upper edges 10b of the rear support body 10A and the rear support body 10B, a lower frame 23 that is in close contact with the lower edges 10c of the rear support body 10A and the rear support body 10B, and a left frame 24 that is in close contact with the left edge 10d of the left rear support body 10A on the left side (X1 side) and a right frame 25 that is in close contact with the right edge 10e of the right rear support body 10B on the right side (X2 side). The "resin frame" is constituted by the upper frame 22, the lower frame 23, the left frame 24, and the right frame 25.

[0104] Figure 6(A) and (B) show the cross-sectional structure of the resin connecting portion 21 that connects the opposing edge 10a on the right side of the rear support 10A on the left to the opposing edge 10a on the left side of the rear support 10B on the right. Locking protrusions 15 are integrally formed on the opposing edges 10a of the left and right rear supports 10A and 10B. On each opposing edge 10a, the locking protrusions 15 are formed continuously or intermittently in the vertical direction. In the insert molding method, by injecting a thermoplastic molten resin into the cavity opposing the left and right locking protrusions 15 and cooling it, a resin connecting portion 21 with a structure in which the locking protrusions 15 intervene from the left and right is formed between the left and right opposing edges 10a.

[0105] Figure 8 (A) and (B) show the cross-sectional structure of the upper edge 10b of the rear support 10A and the upper frame 22 that is part of the resin frame. As Figure 5 and Figure 8 shown, locking protrusions 16 are integrally formed on the upper edges 10b of the left and right rear supports 10A and 10B. In the rear supports 10A and 10B, the locking protrusions 16 are formed continuously or intermittently in the left-right direction. In the insert molding method, by injecting a thermoplastic molten resin into the cavity where the locking protrusions 16 of the left and right rear supports 10A and 10B are located and cooling it, an upper frame 22 with a structure in which the locking protrusions 16 intervene is formed. As Figure 5 shown, locking protrusions 17 are also integrally formed on the lower edges 10c of the left and right rear supports 10A and 10B, and by the insert molding method, a lower frame 23 with a shape in which the locking protrusions 17 intervene is formed.

[0106] Figure 9 (A) and (B) show the cross-sectional structure of the right edge 10e of the rear support 10B on the right and the right frame 25. A locking protrusion 18 is integrally formed on the right edge 10e of the rear support 10B. The locking protrusion 18 is formed continuously or intermittently in the up-down direction. If the resin frame is formed by the insert molding method, a right frame 25 with a shape in which the locking protrusion 18 intervenes is formed. Similarly, a locking protrusion is also integrally formed on the left edge 10d of the rear support 10A on the left, and by insert molding, a left frame 24 with a structure in which the locking protrusion intervenes is formed.

[0107] In the "resin frame" formed by insert molding, the upper frame 22 is continuously formed along the upper edge 10b of the rear support 10A on the left side and the upper edge 10b of the rear support 10B on the right side, and the lower frame 23 is also continuously formed along the lower edge 10c of the rear support 10A on the left side and the lower edge 10c of the rear support 10B on the right side. It becomes a rectangular frame in which the upper frame 22, the lower frame 23, the left frame 24, and the right frame 25 are all continuous, and the resin connection part 21 is integrally formed continuously with the upper frame 22 and the lower frame 23. The support connection body 2 formed by integrating the two rear supports 10A and 10B with the resin molded body 20 has a structure in which a continuous resin frame is provided without interruption along the outer periphery of the two rear supports 10A and 10B connected by the resin connection part 21. Therefore, even if the rear supports 10A and 10B are formed independently, the support connection body 2 can be treated as an integrated component. In addition, a continuous resin frame (upper frame 22, lower frame 23, left frame 24, right frame 25) is formed without interruption along the outer periphery (upper edge 10b, lower edge 10c, left edge 10d, right edge 10e) of the two rear supports 10A and 10B, so the display device 1 presents an integrated appearance.

[0108] As Figure 2 shown, at the boundary portion between the adjacent rear supports 10A and 10B, a connection support member 40 is fixed to the rear portions of the rear supports 10A and 10B. Two connection support members 40 are provided separately in the vertical direction (Z1-Z2 direction), and each connection support member 40 is fixed to the rear surfaces 12 of the adjacent rear supports 10A and 10B across the resin connection part 21. The connection support member 40 is formed by die-casting using the same metal material as the material forming the rear supports 10A and 10B, or by bending a metal plate. Alternatively, it is injection-molded from a hard resin. As Figure 7 shown in the cross-sectional view, the connection support member 40 has a mounting portion 41 parallel to the rear surfaces 12 of the rear supports 10A and 10B, and positioning portions 42 that continuously extend forward above and below the mounting portion 41. As Figure 6 shown, fixing holes 43 are formed at intervals in the horizontal direction in the mounting portion 41. As Figure 7 shown, the front end of the positioning portion 42 is a positioning surface 42a, and as Figure 6 shown, the positioning surface 42a is parallel to the rear surfaces 12 of the rear supports 10A and 10B and is continuously formed in a straight line in the horizontal direction (X1-X2 direction).

[0109] As Figure 2As shown in the figure, on the rear surfaces 12 of the rear support bodies 10A and 10B, fixing protrusions 19 are formed so as to protrude rearward at two positions on the left and right respectively, and internal threaded holes 19a are formed in the respective fixing protrusions 19. Two fixing screws 45 are inserted into fixing holes 43 formed in the connection support member 40 and are respectively screwed into the internal threaded holes 19a of a pair of fixing protrusions 19 that face each other across the resin connection portion 21, thereby fixing the connection support member 40 to the rear support bodies 10A and 10B. As Figure 6 shown, if the connection support member 40 is fixed, the positioning surface 42a of the connection support member 40 abuts against the rear surface 12 of the rear support body 10A on the left side and the rear surface 12 of the rear support body 10B on the right side at the position of the resin connection portion 21. If the positioning surface 42a of the connection support member 40 abuts against the rear surfaces 12 of the left and right rear support bodies 10A and 10B, the resin connection portion 21 is slightly deformed and the rear surface 12 of the rear support body 10A and the rear surface 12 of the rear support body 10B become substantially the same plane, and the rear support bodies 10A and 10B are positioned relative to each other in the front-rear direction. Thereby, the relative flatness of the front surface (the front surface around the storage recess 11) 14 of the rear support body 10A on the left side and the front surface 14 of the rear support body 10B on the right side can be maintained at a high level.

[0110] The two rear support bodies 10A and 10B are integrated with the resin molded body 20 by insert molding, and the adjacent rear support bodies 10A and 10B are fixed and positioned relative to each other by the upper and lower two connection support members 40, thereby completing the support connection body 2.

[0111] As Figure 6 shown in (A) of Figure 8 and Figure 9 shown in (A) of Figure 1 and Figure 3 shown, the cover assembly 3 is assembled independently of the support connection body 2. The cover assembly 3 has a light-transmissive cover plate 30. Here, the "light-transmissive property" is preferably a transparent plate having a total light transmittance of, for example, 60% or more, and more preferably 90% or more. As

[0112] As Figure 6 shown in (A) of Figure 8 and Figure 9As shown in (A) of FIG. 0, the cover plate 30 has a front surface 30a facing forward (Y1 direction) and a rear surface 30b facing rearward (Y2 direction). Two display panels 31A and 31B are provided on the rear surface 30b of the cover plate 30, and the display panels 31A and 31B are bonded to the rear surface 30b of the cover plate 30 by an optical adhesive layer 32. The display panels 31A and 31B are liquid crystal display panels having the same structure and the same size. As Figure 6 As shown in (A) of FIG. 1, etc., in the display panels 31A and 31B, the front glass substrate 33 overlaps the rear glass substrate 34, and transparent electrodes are formed on the opposing surfaces of the respective glass substrates 33 and 34. A liquid crystal material is enclosed inside the front glass substrate 33 and the rear glass substrate 34, and a color filter is provided on the opposing surface of one of the glass substrates. The front glass substrate 33 is bonded to the rear surface 30b of the cover plate 30 by an optical adhesive layer 32.

[0113] In the cover assembly 3, a transparent touch sensor panel is interposed between the front glass substrate 33 of the display panel 31A and the cover plate 30, and a transparent touch sensor panel is also sandwiched between the front glass substrate 33 of the display panel 31B and the cover plate 30. The touch sensor panel has a transparent electrode and can detect a change in capacitance when a person's finger touches or approaches the front surface 30a of the cover plate 30, thereby detecting the contact position or approach position of the finger.

[0114] As Figure 5 and Figure 6 and Figure 8 As shown in FIG. 2, the rear support 10A on the left side is a housing and has a storage recess 11 that opens forward. Inside the storage recess 11, the backlight unit 35A and optical sheets 36 such as a light diffusing sheet that overlaps in front of it are stored and supported. A spacer 37 is fixed in front of the optical sheet 36. As Figure 6 and Figure 9 As shown in FIGS. 3 and 4, in the storage recess 11 of the rear support 10B on the right side, the backlight unit 35B, the optical sheet 36, and the spacer 37 are also stored and supported. The backlight unit 35A and the backlight unit 35B are the same units, and each has a plurality of light sources such as LEDs and a light guide plate that guides light from the light source and irradiates the display panels 31A and 31B.

[0115] As Figure 6 in (A) of FIG. 5 and Figure 8 in (A) of FIG. 6 and Figure 9 in (A) of FIG. 7, an adhesive layer 4 is provided on the front surface 14 of the rear supports 10A and 10B. The adhesive layer 4 is provided on the front surface 14 over the entire circumference surrounding the storage recess 11. As Figure 6 in (B) of FIG. 8 and Figure 8 in (B) of FIG. 9 and Figure 9As shown in (B), the rear surface 30b of the cover plate 30 is adhered to the front surface 14 by the adhesive layer 4. A double-sided adhesive tape or the like is used as the adhesive layer 4. If the cover assembly 3 is fixed in front of the support connection body 2, the left display panel 31A is located between the left rear support 10A and the cover plate 30, and almost all of the display panel 31A is inside the storage recess 11 of the rear support 10A. The right display panel 31B is located between the right rear support 10B and the cover plate 30, and almost all of the display panel 31B is inside the storage recess 11 of the rear support 10B. In addition, the backlight unit 35A is opposed to the rear of the left display panel 31A, and the backlight unit 35B is opposed to the rear of the right display panel 31B.

[0116] As Figure 6 shown in (B) and Figure 8 shown in (B) and Figure 9 shown in (B) of FIGS. If the cover plate 30 constituting the cover assembly 3 is adhesively fixed to the front surfaces 14 of the rear supports 10A and 10B constituting the support connection body 2, the assembly of the display device 1 is completed. In Figure 1 , the cover assembly 3 is shown from the front, so the areas of the cover plate 30 that overlap with the display panels 31A and 31B are indicated by dashed lines. In the display device 1, the area surrounded by the dashed lines becomes the display area.

[0117] As Figure 2 shown, in the display device 1, flexible printed circuit boards 5 and 6 are provided on the back surfaces of the respective rear supports 10A and 10B. These flexible printed circuit boards 5 and 6 are electrically connected to the transparent electrodes of the display panels 31A and 31B, and are also electrically connected to the transparent electrodes of the touch sensor panel, and further apply drive power to the backlight units 35A and 35B. If drive signals are applied to the display panels 31A and 31B via the flexible printed circuit boards 5 and 6, and drive power is applied to the backlight units 35A and 35B, then Figure 1 an image is displayed in the display area surrounded by the dashed lines in

[0118] In addition, in the display device of the present invention, as the display panels 31A and 31B, self-luminous display panels such as organic electroluminescent elements that do not use a backlight unit can also be used. In this case, a display panel 31A is also provided between the cover plate 30 and the rear support 10A, and a display panel 31B is provided between the cover plate 30 and the rear support 10B.

[0119] <Manufacturing Method of the Display Device 1 of the First Embodiment>

[0120] The above display device 1 is assembled through the following processes.

[0121] (a) By insert molding, two rear support bodies 10A and 10B are integrated with the resin molded body 20 to form a resin connection part 21 that connects the two rear support bodies 10A and 10B, and a "resin frame" that fits closely with the other outer peripheral parts in each of the rear support bodies 10A and 10B that are not combined with the resin connection part 21. Further, the connection support member 40 is fixed across the resin connection part 21 to the rear part of the rear support body 10A and the rear part of the rear support body 10B to complete the support connection body 2.

[0122] (b) In a process different from the above (a), on the rear surface 30b of the cover plate 30, the display panels 31A and 31B are pasted, and the touch sensor panel is interposed between the rear surface 30b and each display panel 31A and 31B to complete the cover assembly 3.

[0123] (c) In the accommodation recesses 11 of the respective rear support bodies 10A and 10B of the support connection body 2, the backlight units 35A and 35B, the optical sheet 36, and the spacer 37 are provided.

[0124] (d) The cover plate 30 is adhesively fixed to the front surfaces 14 of the respective rear support bodies 10A and 10B via the adhesive layer 4, thereby completing the manufacture of the display device 1.

[0125] <Display device 101 of the second embodiment>

[0126] Figure 10 and Figure 11 As shown, the display device 101 of the second embodiment has the same basic structure as the display device 1 of the first embodiment. As Figure 11 shown, the display device 101 has a support connection body 102 formed by connecting three rear support bodies 10A, 10B, and 10C with a resin molded body 20. The rear support body 10A has the same structure and size as the rear support bodies 10B and 10C, and they are the same as the rear support bodies 10A and 10B in the support connection body 2 of the first embodiment. As Figure 12 shown, in the accommodation recesses 11 of the respective rear support bodies 10A, 10B, and 10C, the backlight units 35A, 35B, and 35C, the optical sheet 36, etc. are accommodated. As Figure 10 shown, the display device 101 has a cover assembly 103 in which three display panels 31A, 31B, and 31B are pasted on the rear surface of the cover plate 30. The display panel 31A has the same structure and size as the display panels 31B and 31C, and they are the same as the display panels 31A and 31B in the cover assembly 3 of the first embodiment. As Figure 10 shown, the display device 101 has three display areas surrounded by dotted lines.

[0127] In Figure 10 and Figure 11 In the manufacturing process of the support connecting body 102 shown, three rear support bodies 10A, 10B, and 10C are integrated with the resin molded body 120 by insert molding. The resin molded body 120 has two resin connecting portions 121 and a "resin frame". In the "resin frame", the upper frame 22, the lower frame 23, the left frame 24, and the right frame 25 are continuous. The cross-sectional shapes of the upper frame 22, the lower frame 23, the left frame 24, and the right frame 25 are the same as those of the Figure 8 and Figure 9 "resin frame" of the first embodiment shown. As shown in the cross-sectional view of Figure 12 , the cross-sectional shape of the resin connecting portion 121 in the second embodiment is different from the cross-sectional shape of the resin connecting portion 21 in the display device 1 of the first embodiment.

[0128] As shown in Figure 12 , locking protrusions 15 are formed on the opposing sides 10a of the rear support body 10B and the opposing sides 10a of the rear support body 10C. The left and right locking protrusions 15 are inserted into the resin connecting portion 121 formed by insert molding to connect the rear support bodies 10B and 10C. The width dimension of the resin connecting portion 121 in the lateral direction (X1-X2 direction) is larger than that of the resin connecting portion 21 of the display device 1 in the first embodiment. In the resin connecting portion 121, a plurality of concave portions 121a that are recessed from the rear surface toward the front are formed, and the resin connecting portion 121 becomes easily deformable. The above concave portions 121a may also be single. In addition, the concave portions may be recessed from the front surface of the resin connecting portion 121 toward the rear, or a mixture of concave portions recessed toward the front and concave portions recessed toward the rear may exist. Furthermore, the opposing sides 10a of the rear support body 10A and the rear support body 10B are also connected by a resin connecting portion 121 having the same structure as that shown in Figure 12 .

[0129] As shown in Figure 11 , a connecting support member 140 that straddles the resin connecting portion 121 is fixed between the adjacent rear support bodies 10A and 10B, and a connecting support member 140 that straddles the resin connecting portion 121 is also fixed between the adjacent rear support bodies 10B and 10C. As shown in Figure 12 , in the connecting support member 140, fixing holes 143 are formed at two positions on the left and right. On the rear surfaces 12 of the left and right rear support bodies 10B and 10C, fixing protrusions 19 that protrude near the opposing sides 10a are formed. Fixing screws 45 inserted into the respective fixing holes 143 are screwed into the internal thread holes 19a of the fixing protrusions 19 to fix the connecting support member 140 to the rear portions of the adjacent rear support bodies 10B and 10C.

[0130] As Figure 12 shown, positioning portions 142 are provided at intervals in the lateral direction in the connecting support member 140. Each positioning portion 142 has front and rear positioning surfaces 142a and left and right positioning surfaces 142b. If the connecting support member 140 is fixed to the adjacent rear support bodies 10B and 10C, the left and right front and rear positioning surfaces 142a abut against the rear surfaces 12 of the adjacent rear support bodies 10B and 10C, determining the relative position in the front-rear direction of the adjacent rear support bodies 10B and 10C. In addition, the left and right positioning surfaces 142b enter between the rear support body 10B and the rear support body 10C, and the left and right positioning surfaces 142b are pressed against the opposing edges 10a of the adjacent rear support bodies 10B and 10C, also determining the relative position in the lateral direction of the adjacent rear support bodies 10B and 10C. The connection and positioning performed by the connecting support member 140 are the same also between the rear support body 10A and the rear support body 10B.

[0131] The manufacturing method of the display device 101 of the second embodiment is substantially the same as the manufacturing method of the display device 1 of the first embodiment. As Figure 11 shown, since the display device 101 of the second embodiment also has a large width dimension in the lateral direction (X1-X2 direction) and a large total area of the display regions surrounded by the dashed lines, various display modes can be realized when used in vehicles or the like.

[0132] <Manufacturing Method of Display Devices 201 and 211 of the Third Embodiment>

[0133] As Figures 13 to 17 shown, the display devices 201 and 211 of the third embodiment, like the display device 101 of the second embodiment, have support connection bodies 202 formed by combining three rear support bodies 10A, 10B, and 10C with a resin molding 120, three backlight units 35A, 35B, and 35C accommodated in each of the rear support bodies 10A, 10B, and 10C, and a cover assembly 203 in which three display panels 31A, 31B, and 31C are bonded to the rear surface of the cover plate 30. In the display device 201 and the display device 211, the opening angles of the adjacent rear support bodies and the cover plate 30 adhered thereto facing forward (Y1 direction) are angles other than 180 degrees. In Figures 14 to 16 the display device 201 shown, the opening angles θ of the adjacent rear support bodies 10A and 10B and the cover plate 30 adhered thereto facing forward (Y1 direction), and the opening angles θ of the adjacent rear support bodies 10B and 10C and the cover plate 30 adhered thereto facing forward (Y1 direction) are set to be less than 180 degrees. For example, the opening angle θ is 120 degrees or more and 170 degrees or less. In Figure 17In the display device 211 shown, the forward opening angle θ2 of the adjacent rear support bodies 10A and 10B and the cover plate 30 pasted thereon is less than 180 degrees, and the forward opening angle θ1 of the adjacent rear support bodies 10B and 10C and the cover plate 30 pasted thereon exceeds 180 degrees. For example, the angle θ1 is 190 degrees or more and 240 degrees or less. Among them, each of the angles θ, θ1, and θ2 may also be an angle outside the above range.

[0134] The manufacturing method of the display device 201 is as Figure 13 shown. By the insert molding method, a support connection body 202 in which a resin molded body 120 is combined with three rear support bodies 10A, 10B, and 10C is manufactured. In addition, a cover assembly 203 in which three display panels 31A, 31B, and 31C are bonded to the rear surface of the cover plate 30 is manufactured. The cover plate 30 is bonded to the front surfaces of the respective rear support bodies 10A, 10B, and 10C via the adhesive layer 4, and the cover assembly 203 is fixed in front of the support connection body 202. The manufacturing method of the support connection body 202, the manufacturing method of the cover assembly 203, and the manufacturing process until the mutual fixation of the support connection body 202 and the cover assembly 203 are the same as the respective manufacturing processes in the display device 101 of the second embodiment.

[0135] In the manufacturing method of the display device 201 of the third embodiment, as Figure 13 shown, after the support connection body 202 in the planar state and the cover assembly 203 in the planar state are joined, a sufficient curing time is ensured to firmly join the support connection body 202 and the cover assembly 203. Thereafter, a mechanical external force is applied at normal temperature or in a heated state to deform the resin connection portion 121, and further deform the cover plate 30. As Figure 14 shown, the rear support bodies 10B and 10C and the cover plate 30 joined thereto are bent into a forward opening angle θ less than 180 degrees. Similarly, the adjacent rear support body 10A and the rear support body 10B and the cover plate 30 joined to the rear support bodies 10A and 10B are also bent into a forward opening angle θ less than 180 degrees.

[0136] Figure 15 is a cross-sectional view of the enlarged VX portion of Figure 14 . As Figure 15As shown, the adjacent rear support bodies 10B and 10C have an opening angle θ less than 180 degrees due to the deformation of the resin connection part 121. The cover plate 30 is a glass plate with a thickness of about 0.8 mm. However, the glass plate 30 has a large area with a lateral dimension of 600 mm or more and a vertical dimension of 300 mm or more, for example. Therefore, when the resin connection body 121 is deformed, the cover plate 30 firmly joined to the front surfaces of the rear support bodies 10B and 10C via the adhesive layer 4 does not separate from the rear support bodies 10B and 10C and can deform following the opening angle θ of the rear support bodies 10B and 10C. In addition, when the cover plate 30 is formed of a thermoplastic resin such as polycarbonate, by applying heat to such an extent that the cover plate 30 does not change color when an external force is applied to the rear support bodies 10B and 10C, the cover plate 30 easily deforms following the rear support bodies 10B and 10C.

[0137] After bending the rear support bodies 10B and 10C and the cover plate 30 joined to these rear support bodies 10B and 10C by an external force, as Figure 16 shown, a connection support member 240 is fixed to the rear parts of the adjacent rear support bodies 10B and 10C. The connection support member 240 is prefabricated such that the mounting parts 244 at the left and right ends are in agreement with the above-mentioned opening angle θ. By screwing the fixing screw 45 inserted into the mounting hole 243 formed in the mounting part 244 to the fixing protrusion 19 formed on the rear surfaces 12 of the adjacent rear support bodies 10B and 10C, the rear support body 10B and the rear support body 10C can be fixed while maintaining the opening angle θ. In addition, the relative positions of the adjacent rear support bodies 10B and 10C in the front-rear direction are determined by the front-rear positioning surfaces 242a formed on the left and right sides of the connection support member 240, and the lateral positions of the rear support bodies 10B and 10C are also determined by the left-right positioning surfaces 242b. In addition, the connection support member 240 is also fixed to the rear parts of the rear support body 10A and the rear support body 10B, and the opening angle of the rear support body 10A and the rear support body 10B is also set to θ.

[0138] Figure 17 The display device 211 shown can be manufactured by the same manufacturing process as the manufacturing method of the Figures 13 to 16 display device 201 shown. That is, as Figure 13As shown, after ensuring sufficient curing time after the support connecting body 202 in the planar state and the cover assembly 203 in the planar state are joined, the support connecting body 202 and the cover assembly 203 are firmly joined. Thereafter, an external force is applied to make the opening angle θ2 in the forward direction (Y1 direction) of the adjacent rear support bodies 10A and 10B less than 180 degrees, and the opening angle θ1 between the rear support body 10B and the rear support body 10C more than 180 degrees. Thereafter, the support connecting member 442 is fixedly connected to the rear portions of the rear support bodies 10A and 10B, and the support connecting member 441 is fixedly connected to the rear portions of the rear support bodies 10B and 10C. In addition, in Figure 17 the display device 211, the angles θ1 and θ2 can both be set to angles more than 180 degrees.

[0139] In addition, in Figures 14 to 16 the display device 201, the opening angle θ between the rear support body 10B and the rear support body 10C can be set to less than 180 degrees, while keeping the opening angle between the rear support body 10A and the rear support body 10B at 180 degrees. In addition, in Figure 17 the display device 211 shown, the opening angle θ between the rear support body 10B and the rear support body 10C can be set to more than 180 degrees, while keeping the opening angle between the rear support body 10A and the rear support body 10B at 180 degrees. Furthermore, in the display device 1 of the first embodiment formed by connecting two rear support bodies 10A and 10B, it can also be manufactured such that the opening angle between the adjacent rear support bodies 10A and 10B and the cover plate 30 joined to each of the rear support bodies 10A and 10B is less than 180 degrees or more than 180 degrees.

[0140] <Advantages of the display devices 1, 101, 201, 211>

[0141] The advantages (effects of the present invention) of the display devices 1, 101, 201, 211 and their manufacturing methods of the above embodiments are as follows.

[0142] If a display device having a large display area for in-vehicle use or the like is to be configured with one rear support, the rear support becomes large and it is difficult to maintain the dimensions of the rear support with high precision, especially difficult to maintain flatness. In contrast, in the display devices 1, 101, 201, and 211 of the respective embodiments, the rear supports 10A, 10B, and 10C corresponding to one display panel are manufactured independently of each other. Therefore, even if the overall area of the display devices 1, 101, 201, and 211 is large, it is possible to reduce the dimensional tolerance of each rear support and maintain a high flatness. In addition, by connecting a plurality of rear supports with resin molded bodies 20 and 120 and further fixing and connecting support members 40, 140, 240, 441, and 442 across adjacent rear supports at the rear of each rear support, the relative positions of adjacent rear supports can be determined by the connecting support members 40, 140, 240, 441, and 442. As a result, a display device with a small overall dimensional error and high-precision maintained flatness can be obtained.

[0143] In the display devices 1, 101, 201, and 211 of the respective embodiments, by die-casting the rear supports 10A, 10B, and 10C using a magnesium alloy, an aluminum alloy, or a zinc alloy, etc., the dimensional accuracy of each rear support can be improved and the flatness can be enhanced. However, in a display device having one metal rear support and a plurality of display panels, if static electricity is discharged from a person's finger close to the cover plate for operating the touch sensor panel to a certain display panel, this discharge not only affects one display panel, but also propagates in the metal rear support and affects other display panels, causing problems such as noise generation in multiple display panels. In contrast, in the display devices 1, 101, 201, and 211 of the embodiments, an individual display panel and a touch sensor panel are provided for each of the independent plurality of rear supports, and an insulating resin connection portion 21, 121 is provided between adjacent rear supports. Therefore, static electricity is not easily propagated to other rear supports and other display panels, and adverse effects such as image noise caused by static electricity discharge can be suppressed to a minimum.

[0144] Figure 18This is an explanatory diagram showing the breakage condition of the display device 1 of the first embodiment when an impact force acts from the front. For example, if an impact force acts from the front of the rear support 10A, the resin connection part 21 deforms, and the impact can be absorbed. Since the cover plate 30 is a thin plate, it can be easily deformed. In addition, by previously forming the connection support member 40 from a material with a lower rigidity than the rear supports 10A and 10B or a material with a lower brittleness than the rear supports 10A and 10B, the connection support member 40 is likely to deform or break along with the deformation of the resin connection part 21. Through the deformation of the resin connection part 21 and the deformation or breakage of the connection support member 40, the resistance to an external impact can be alleviated, and it is easy to ensure the safety of the occupants even when an impact acts during vehicle travel.

[0145] Figure 19 (A) of shows the display device 101 of the second embodiment. Since the resin connection part 121 used in this display device 101 has a plurality of recesses 121a, it is likely to deform when an impact force acts. The connection support member 140 is preferably formed from a metal material that is more brittle than the rear supports 10B and 10C. Furthermore, on the connection support member 140, a recess 145 that is recessed from the front surface toward the rear is formed. Alternatively, a recess that is recessed from the rear surface toward the front may be formed. As Figure 19 shown in (B) of

[0145] , if an impact force acts on the display device 101 from the front, the resin connection part 121 having a plurality of recesses 121a can be easily deformed, and the connection support member 140 is likely to break at the position where the recess 145 is formed. Thus, it is easy to absorb the impact force from the front.

[0146] In Figures 13 to 17 the manufacturing method of the display devices 201 and 211 of the third embodiment shown in Figures 13 to 17 , by deforming the resin connection part 121 (or the resin connection part 21) and the cover plate 30, it is easy to manufacture a display device with an opening angle θ in the forward direction other than 180 degrees. If it is desired to manufacture a display device with an opening angle θ in the forward direction other than 180 degrees using one rear support corresponding to a plurality of display panels, it is necessary to form a three-dimensional rear support with an opening angle in the forward direction less than 180 degrees or greater than 180 degrees by die casting or the like, and the mold becomes complicated and the manufacturing cost becomes high. In addition, if it is desired to paste the cover plate on the front surface of a rear support whose opening angle is previously formed to be other than 180 degrees, problems such as the cover plate peeling off and warping from the rear support at the bent portion and the cover plate being easily peeled off from the front surface of each rear support are likely to occur. In contrast, in the manufacturing method of the display devices 201 and 211 of the third embodiment, as Figure 13As shown, the cover assembly 3 in a planar state is pasted on the flat support connecting body 202, so that it can be cured in a flat state after being joined through the adhesive layer 4, and each rear support body can be firmly joined to the cover plate. Thereafter, as Figure 14 shown, it is bent so that the opening angle θ between adjacent rear support bodies is less than 180 degrees, or as Figure 17 shown, it is bent so that the opening angle θ1 becomes an angle exceeding 180 degrees. In the completed display device 201, the cover plate 30 is not easily peeled off from the rear support body.

[0147] <Display Device 301 of the Fourth Embodiment>

[0148] The display device according to the embodiment of the present invention can combine and connect rear support bodies of different sizes with a resin molded body. Although all the rear support bodies can be made to have different sizes, in the support connecting body 302 of the display device 301 of the fourth embodiment shown in Figure 20 , the resin molded body 20 connects two rear support bodies 10A and 10B having the same structure and the same shape and a rear support body 110 having a size different from that of the above rear support bodies 10A and 10B. In this way, a plurality of rear support bodies having different shapes and different sizes can also be connected to form a support connecting body. Among them, as Figure 20 shown, at least two of the plurality of rear support bodies are preferably the same in size and shape. By using a plurality of rear support bodies having the same shape and the same size, molds for molding the rear support bodies can be used in common, and the manufacturing cost can be reduced.

Claims

1. A display device comprising a rear support body, a light-transmitting cover plate fixed to the front of the rear support body, and a display panel arranged between the rear support body and the cover plate, characterized in that: A plurality of the rear support bodies are provided, and the plurality of the rear support bodies are connected via a resin connection portion. The front of the plurality of rear support bodies is covered by the cover plate, and the cover plate is fixed to each of the rear support bodies. The display panel is provided individually for each of the rear supporting bodies.

2. The display device according to claim 1, wherein: A resin frame is provided which is continuous along the outer periphery of the plurality of rear supports connected by the resin connecting portion, and the resin frame is formed integrally with the resin connecting portion.

3. The display device according to claim 1, wherein: At least two of the rear supports have the same shape and size.

4. The display device according to claim 1, wherein: The resin connecting portion is formed with a recessed portion recessed forward or backward.

5. The display device according to claim 1, wherein: A connecting support member is provided, the connecting support member being fixed to the rear portions of the adjacent rear support bodies across the resin connecting portion.

6. The display device according to claim 5, wherein: The adjacent rear support bodies are positioned relative to each other in the front-rear direction by the connection support member.

7. The display device according to claim 5, wherein: The connection support member has a recessed portion recessed forward or backward.

8. The display device according to claim 1, wherein: The front surfaces of the adjacent rear support bodies connected by the resin connection portion are at an angle other than 180 degrees.

9. A method for manufacturing a display device, the display device comprising a rear support body, a light-transmitting cover plate fixed to the front of the rear support body, and a display panel disposed between the rear support body and the cover plate, characterized in that: The manufacturing method comprises: (a) using a plurality of rear support bodies and connecting the rear support bodies to each other by a resin connecting portion; and (b) covering the front of the plurality of rear support bodies connected by the resin connection portion with the cover plate and fixing the cover plate to each of the rear support bodies, The display panel is provided separately for each of the rear supporting bodies.

10. A method for manufacturing a display device, the display device comprising a rear support body, a light-transmitting cover plate fixed to the front of the rear support body, and a display panel disposed between the rear support body and the cover plate, characterized in that: The manufacturing method comprises: (a) using a plurality of rear support bodies and connecting the rear support bodies to each other by a resin connecting portion; (b) covering the front of the plurality of rear support bodies connected by the resin connection portion with the cover plate, and fixing the cover plate to each of the rear support bodies; (c) after the step (b), a step of deforming the resin connecting portion and the cover plate so that the front surfaces of the adjacent rear support bodies connected by the resin connecting portion are at an angle other than 180 degrees; and (d) A step of fixing a connecting support member to rear portions of adjacent rear support bodies across the resin connecting portion to fix relative positions of the adjacent rear support bodies.

Images