JP6384311B2 - Display device - Google Patents

Description

  The present invention includes a display panel having a display surface for displaying an image on the front surface, a conductive first conductive plate provided on the back side of the display panel and covering at least a part of the back surface of the display panel, and a first conductive plate And a conductive second conductive plate provided on the side opposite to the display panel side with respect to the first conductive plate so as to face each other with a gap therebetween.

  As such a display device, one described in JP 2010-86932 A (Patent Document 1) is known. Hereinafter, in the description of the column of the background art, member names and symbols in Patent Document 1 are quoted in []. Patent Document 1 discloses a display device including a display panel [display 40], a first conductive plate [holder 30], and a second conductive plate [front plate 11]. And a technique for electrically connecting the second conductive plate to the second conductive plate. Specifically, in the configuration shown in FIG. 1 of Patent Document 1, a part [projection piece 36] of the first conductive plate is connected to a member [side plate 16] electrically connected to the second conductive plate. Then, the first conductive plate and the second conductive plate are electrically connected by fastening and fixing with a fastening component [screw 90]. Moreover, the structure shown by FIG. 3 of the said literature is disclosed by patent document 1 as a prior art. In this configuration, the first conductive plate and the spring component [plate spring 60x] fixed to the second conductive plate are brought into contact with the member [printed circuit board 20] electrically connected to the first conductive plate. The second conductive plate is electrically connected.

JP 2010-86932 A (paragraphs 0014 to 0018, 0020 to 0022, FIGS. 1 and 3)

  However, in the electrical connection structure between the first conductive plate and the second conductive plate using the fastening parts, the installable parts are easily limited due to the structure of the display device and manufacturing restrictions. Therefore, it is difficult to increase the electrical connection path between the first conductive plate and the second conductive plate, and it is not easy to strengthen the ground. Further, in the electrical connection structure between the first conductive plate and the second conductive plate using the spring component, the contact between the spring component and the contact target portion of the spring component is likely to be small. Therefore, it is difficult to reduce the electrical resistance between the first conductive plate and the second conductive plate, and even in this case, it is not easy to strengthen the ground.

  Therefore, when a structure for electrically connecting the first conductive plate and the second conductive plate is provided, the restrictions on the installable parts can be relaxed, or between the first conductive plate and the second conductive plate. Realization of a display device capable of reducing the electrical resistance is desired.

  In view of the above, a display panel having a display surface for displaying an image on the front surface, a conductive first conductive plate provided on the back side of the display panel and covering at least a part of the back surface of the display panel, A characteristic configuration of a display device, comprising: a conductive second conductive plate provided on a side opposite to the display panel side with respect to the first conductive plate so as to face the first conductive plate with a space therebetween The second conductive plate is electrically connected to a ground potential portion, and a conductive pedestal component and a conductive elastic member are interposed between the first conductive plate and the second conductive plate. The first conductive plate and the second conductive plate are provided so as to overlap each other, and the elastic member has contact surfaces on both sides in the opposite direction, and the first conductive plate and the second conductive plate Is the usable range of the thickness of the elastic member in the facing direction. The upper limit value of A1 is A1, the lower limit value of the usable range is A2, and the height of the pedestal component in the facing direction is set to (D-A1) or more and (D-A2) or less. .

According to the above characteristic configuration, since the second conductive plate is electrically connected to the ground potential portion, the first conductive plate is also grounded by electrically connecting the first conductive plate and the second conductive plate. It can be electrically connected to the potential portion. And according to said characteristic structure, although the 1st electroconductive board and 2nd electroconductive board arrange | positioned so that it may oppose with a space | interval may be electrically connected by the base component and the elastic member, it is like this. Compared to the electrical connection structure between the first conductive plate and the second conductive plate using the fastening parts, such an electrical connection structure is less subject to restrictions on the installable parts. Because the base component is fixed to one of the first conductive plate and the second conductive plate, and the elastic member is brought into contact with the other of the first conductive plate and the second conductive plate, the first conductive plate and the second conductive plate As long as the first conductive plate and the second conductive plate face each other without interposing another member therebetween, basically, the first conductive plate and the second conductive plate A structure for electrically connecting the plate can be provided.
Furthermore, according to the above-described characteristic configuration, the elastic member has contact surfaces on both sides in the opposing direction, and the opposing direction of the pedestal component is such that the elastic member is appropriately compressed from the viewpoint of its usable range. The height of is set. Therefore, the elastic member and the first conductive plate or the second conductive plate can be appropriately brought into surface contact using the restoring force of the elastic member, and the electric resistance between the first conductive plate and the second conductive plate can be reduced. Reduction can also be achieved.
In addition, according to said characteristic structure, since the thickness of an elastic member can be restrained small by the height of the opposing direction of a base component, a 1st conductive plate and a 2nd conductive plate are electrically connected. Therefore, it is possible to reduce the amount of the elastic member necessary for this purpose. As a result, it is possible to reduce the cost of the entire apparatus and the space occupied by the structure for electrically connecting the first conductive plate and the second conductive plate.
As described above, according to the above-described characteristic configuration, the first resistance plate and the second conductive plate can be reduced while the restriction on the installable portion is eased and the electrical resistance between the first conductive plate and the second conductive plate is reduced. A structure for electrically connecting the one conductive plate and the second conductive plate can be provided.

It is a disassembled perspective view of the display apparatus which concerns on embodiment of this invention. It is II-II sectional drawing in FIG. It is a figure which shows the base component and elastic member which concern on embodiment of this invention. It is a figure which shows the base component and elastic member which concern on embodiment of this invention. It is a disassembled perspective view of the display apparatus which concerns on other embodiment of this invention. It is VI-VI sectional drawing in FIG. It is a figure which shows the base component and elastic member which concern on other embodiment of this invention. It is a figure which shows the base component and elastic member which concern on other embodiment of this invention.

  Embodiments of a display device according to the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a display device 1 according to the present embodiment. The display device 1 according to the present embodiment constitutes a part of an electronic device (electronic device) 100 that uses the image display function of the display device 1. In FIG. 1, a housing main body 90 that forms an outline of the electronic device 100 (a main body portion of the electronic device 100) is shown in a simplified manner. In the present embodiment, as indicated by a broken line arrow in FIG. 1, the electronic device 100 is manufactured by attaching a cover body 91 with the display panel 20 assembled thereto to the housing body 90. FIG. 2 shows a cross-sectional view in a state in which the cover body 91 is attached to the housing main body 90. In addition, the direction about each member in the following description represents the direction in the state in which the cover body 91 was attached to the housing main body 90. Moreover, the term regarding the direction, position, etc. about each member in the following description is a concept including the state which has the difference by the error which can be accept | permitted on manufacture.

  The electronic device 100 includes, for example, a navigation device having a function (navigation function) for providing guidance information regarding a point and a route to a user, an audio device having a function (audio function) for providing sound and video to the user, Or it is set as the compound apparatus etc. which have both these functions. Therefore, for example, as a circuit board, a control board for realizing a navigation function, a control board for realizing an audio function, and the like are arranged inside the housing body 90. Note that, for example, an arithmetic processing device such as a CPU (Central Processing Unit) and a storage device such as a RAM (Random Access Memory) and a ROM (Read Only Memory) are mounted on the circuit board. In addition, a storage device such as a hard disk and a flash memory, a drive device that can read data in a storage medium such as an optical disk and a flash memory, and the like are disposed inside the housing main body 90, for example. Further, the electronic device 100 may be an in-vehicle electronic device mounted on a vehicle. In this case, the electronic device 100 is fixed to the vehicle body, for example, in a state where the housing main body 90 is inserted into a housing space (for example, the inside of an instrument panel, dashboard, console, etc.).

  As shown in FIG. 1, the display device 1 includes a display panel 20, a conductive first conductive plate 11, and a conductive second conductive plate 12. The first conductive plate 11 and the second conductive plate 12 are formed using a conductive material (for example, metals such as copper, aluminum, iron, etc., and so on). In the present embodiment, the first conductive plate 11 and the second conductive plate 12 are components formed by sheet metal processing of a conductive plate (for example, a metal plate). In the present embodiment, the first conductive plate 11 and the second conductive plate 12 are formed in a rectangular shape (substantially rectangular shape) when viewed in the facing direction Z. Here, the facing direction Z is a direction in which the first conductive plate 11 and the second conductive plate 12 face each other.

  As shown in FIG. 2, the display panel 20 includes a display surface 21 for displaying an image on the front. In this example, the outer shape of the display panel 20 when viewed in a direction orthogonal to the display surface 21 (in this example, the same direction as the facing direction Z) is formed in a rectangular shape. The display panel 20 is, for example, a liquid crystal display panel or an organic EL (Electro-Luminescence) display panel. Although details are omitted, the display panel 20 includes a wiring member, a pixel circuit for driving each pixel, and the like as components for displaying an image on the display surface 21. When the display panel 20 is a transmissive or transflective liquid crystal display panel, a backlight is also provided in the display panel 20. As the display device 1, a display input device having a function as an input device (for example, a display device in which the display surface 21 functions as a touch panel) may be used.

  As shown in FIGS. 1 and 2, the first conductive plate 11 is provided on the back side of the display panel 20. The first conductive plate 11 is disposed so as to cover at least a part of the back surface of the display panel 20 (the surface opposite to the display surface 21). In the present embodiment, the first conductive plate 11 is disposed so as to cover the entire back surface of the display panel 20. As shown in FIG. 2, the second conductive plate 12 is provided on the side opposite to the display panel 20 side with respect to the first conductive plate 11 so as to face the first conductive plate 11 with a gap. That is, the second conductive plate 12 is provided on the back side of the first conductive plate 11. In the present embodiment, the first conductive plate 11 and the second conductive plate 12 are arranged such that the plate surfaces on the sides facing each other are parallel to each other. The “plate surface” means the surface of a portion formed in a planar shape excluding a stepped portion and an uneven portion. In the present embodiment, the second conductive plate 12 is disposed so as to cover the entire back surface of the first conductive plate 11.

  In the present embodiment, a first control board 51 for driving the display panel 20 is provided between the first conductive plate 11 and the second conductive plate 12. As shown in FIG. 1, the first control board 51 is disposed so as to cover a part of the first conductive plate 11 (a part of the back surface). Therefore, the portion of the back surface of the first conductive plate 11 (the surface on the second conductive plate 12 side) that is not covered by the first control board 51 does not sandwich another member therebetween, that is, directly Opposite to the conductive plate 12. In the present embodiment, the first control board 51 is arranged in parallel to the plate surface on the back side of the first conductive plate 11. In the present embodiment, the outer shape of the first control board 51 when viewed in the facing direction Z is formed in a rectangular shape. Here, the direction orthogonal to the opposing direction Z and along the one side (long side in this example) of the rectangle is the first direction X, and the direction orthogonal to both the opposing direction Z and the first direction X is The second direction Y is assumed. In this example, the second direction Y is a direction along the short side of the rectangle. In the present embodiment, as shown in FIG. 1, the first control board 51 covers most of the back surface of the first conductive plate 11 (half or more of the area), and only the edge of the first conductive plate 11 (this example) Then, only the edge portion along each side of the rectangular outer shape of the first conductive plate 11) is not covered by the first control board 51. In the present embodiment, the first control board 51 corresponds to the “control board” in the present invention.

  A circuit component (for example, a driver IC) for driving the display panel 20 is mounted on the first control board 51. The first control board 51 is connected to a second control board 52 provided in the housing body 90 by a connecting member (not shown). In this example, as shown in FIG. 1, the second conductive plate 12 is formed with an opening 12a penetrating the second conductive plate 12 in the facing direction Z, and the connecting member is passed through the opening 12a. Arranged. The first control board 51 performs drawing control of an image displayed on the display surface 21 based on a signal input from the second control board 52. For example, circuit components for realizing a navigation function, an audio function, and the like are mounted on the second control board 52. In this case, for example, a map image, an operation setting image for operating a navigation device or an audio device, and the like are displayed on the display surface 21.

  As shown in FIG. 1, the display panel 20, the first conductive plate 11, and the first control board 51 are assembled to the cover body 91. On the other hand, the second conductive plate 12 is assembled to the housing body 90. Although details are omitted, in the present embodiment, the first conductive plate 11 is configured to hold the display panel 20. That is, the display panel 20 is fixed to the cover body 91 by being sandwiched between the cover body 91 and the first conductive plate 11. The ground portion (earth connection portion) of the display panel 20 and the first conductive plate 11 may be electrically connected. Here, “ground”, “earth”, and “ground” described later are naturally used as a concept including the case where the ground is other than the ground (for example, the vehicle body). In the present embodiment, the cover body 91 is formed using a non-conductive (electrically insulating) material (for example, a synthetic resin).

  In the present embodiment, the first control board 51 is fixed to the cover body 91 by being supported by the first conductive plate 11. Specifically, as shown in FIG. 2, the first conductive plate 11 has a seat portion 11a formed so as to protrude to the back side, and the first control board 51 is in contact with the seat portion 11a. The first conductive plate 11 is fixed in a state. The ground portion of the first control board 51 and the first conductive plate 11 may be electrically connected by using the seat portion 11a. In the present embodiment, the first control board 51 is disposed apart from the first conductive plate 11 except for the contact portion with the seat portion 11a. Further, the first control board 51 is also arranged away from the second conductive plate 12.

  When one or both of the ground portions of the display panel 20 and the first control board 51 are electrically connected to the first conductive plate 11, the first conductive plate 11 is used from the viewpoint of preventing charging and stabilizing the ground. It is desirable to properly ground. In the configuration in which the first control board 51 is disposed on the back side of the first conductive plate 11 as in the display device 1 according to the present embodiment, the first conductive plate 11 includes the display panel 20 and the first control board. One of 51 functions as an electromagnetic shielding board which controls the influence which the electromagnetic noise (radiation noise) which one generates has on the other. Therefore, it is desirable to properly ground the first conductive plate 11 from the viewpoint of appropriately functioning the first conductive plate 11 as an electromagnetic shield.

  In the present embodiment, as shown in FIG. 1, the housing main body 90 is larger than the first conductive plate 11 and the second conductive plate 12 and has a large surface area. The housing body 90 is formed using a conductive material. Therefore, the housing main body 90 functions as a ground for the electronic device 100. That is, the potential of the housing main body 90 becomes the ground potential of the electronic device 100. When electronic device 100 is an on-vehicle electronic device, housing body 90 is electrically connected to the ground potential portion of the vehicle. In the present embodiment, the housing body 90 corresponds to the “ground potential portion” in the present invention.

  The second conductive plate 12 is electrically connected to the housing body 90. In the present embodiment, the second conductive plate 12 is electrically connected to the housing body 90 by being assembled to the housing body 90 so as to be in contact with the housing body 90. In the present embodiment, the second conductive plate 12 is an electromagnetic shield plate that suppresses the influence of electromagnetic noise generated by one of the components in the first control board 51 and the housing body 90 (for example, the second control board 52) on the other. Is functioning. Since the second conductive plate 12 is electrically connected to the housing body 90 as the ground potential portion, the first conductive plate 11 is electrically connected to the first conductive plate 11 and the second conductive plate 12. Can be properly grounded. In the electronic device 100, as described below, the first conductive plate 11 and the second conductive plate 11 and the second conductive plate 11 and the conductive elastic member 10 which are arranged to face each other with a gap therebetween, as described below. The conductive plate 12 is electrically connected.

  As shown in FIG. 2, the pedestal component 30 and the elastic member 10 are provided between the first conductive plate 11 and the second conductive plate 12 so as to overlap each other in the facing direction Z. In the present embodiment, as shown in FIGS. 1 and 2, a plurality of sets (specifically, three sets) of the base component 30 and the elastic member 10 that are arranged in the opposing direction Z are provided. In the present embodiment, the plurality of sets of pedestal parts 30 and the elastic members 10 are arranged in a straight line for each set (in units of sets) as viewed in the facing direction Z (in this example, along the first direction X). To be lined up). It is also possible to adopt a configuration in which only one set of the base part 30 and the elastic member 10 that are arranged in the opposing direction Z is provided.

  As shown in FIGS. 3 and 4, the elastic member 10 has contact surfaces 40 on both sides in the facing direction Z. Here, the first contact surface 41 that is one of the contact surfaces 40 on both sides in the opposing direction Z is a contact surface that contacts the first conductive plate 11 or the second conductive plate 12, and the second contact surface 42 that is the other. Is a contact surface that contacts the pedestal component 30 (a support surface 32a described later). The first contact surface 41 is in surface contact with the first conductive plate 11 or the second conductive plate 12. That is, as shown in FIGS. 2 to 4, the first contact surface 41 is in a state where at least the elastic member 10 is in contact with the first conductive plate 11 or the second conductive plate 12 (the first conductive plate 11 in the present embodiment). Becomes flat. The first contact surface 41 does not have to be planar before the elastic member 10 contacts the first conductive plate 11 or the second conductive plate 12, and may be, for example, on a curved surface. In the present embodiment, the second contact surface 42 is in surface contact with the pedestal component 30. That is, as shown in FIGS. 2 to 4, the second contact surface 42 is planar when at least the elastic member 10 is in contact with the pedestal component 30. Note that the second contact surface 42 does not have to be flat in a state before the elastic member 10 contacts the pedestal component 30, and may be, for example, on a curved surface.

  In the elastic member 10, a part of the surface of the elastic member 10 constituting the contact surface 40 (the first contact surface 41 and the second contact surface 42) is formed using a conductive material. In addition, the elastic member 10 is also formed using a conductive material at a portion where the first contact surface 41 and the second contact surface 42 are electrically connected. In the present embodiment, the portion that electrically connects the first contact surface 41 and the second contact surface 42 is formed on the side surface 43 of the elastic member 10. Here, the side surface 43 is a portion of the surface of the elastic member 10 excluding the first contact surface 41 and the second contact surface 42. When a portion formed of the conductive material on the side surface 43 of the elastic member 10 is a conductive side surface portion, a part or all of the side surface 43 is a conductive side surface portion.

  For example, as the elastic member 10, a sheet body (for example, fiber) is formed around the elastic body formed of a material having elasticity (cushioning property) and non-conductivity (electrical insulation). Or a thin film-like sheet) can be used. In this case, the sheet body is provided so as to cover at least a portion corresponding to the contact surface 40 (the first contact surface 41 and the second contact surface 42) and a portion corresponding to the conductive side surface portion of the surface of the elastic body. It is done. The material constituting the elastic body is, for example, a synthetic resin or a synthetic rubber, and a material obtained by foaming these may be used.

  As shown in FIG. 2, the elastic member 10 is arranged in a compressed state in the facing direction Z by the pedestal component 30 and the first conductive plate 11 or the second conductive plate 12 (first conductive plate 11 in the present embodiment). Is done. In FIG. 2, the shape of the elastic member 10 in a state before the cover body 91 in the state in which the first conductive plate 11 is assembled is attached to the housing body 90 in the state in which the second conductive plate 12 is assembled. Shown with a chain line. Here, when the compression of the elastic member 10 is insufficient, the restoring force generated according to the elastic deformation of the elastic member 10 is small, and the contact pressure between the contact surface 40 and the contact target member becomes insufficient. There is a fear. In addition, even when the compression of the elastic member 10 is such that the elastic member 10 is plastically deformed, the restoring force generated in the elastic member 10 is reduced by reducing the proportion of elastic deformation in the deformation of the elastic member 10, There is a possibility that the contact pressure between the contact surface 40 and the contact target member becomes insufficient.

  In view of the above points, the height H of the base component 30 in the facing direction Z is set as follows. That is, the facing distance between the first conductive plate 11 and the second conductive plate 12 is D, the upper limit of the usable range of the thickness A in the facing direction Z of the elastic member 10 is A1, and the lower limit of the usable range is A2. Then, the height H of the base component 30 in the facing direction Z is set to (D-A1) or more and (D-A2) or less. Here, the upper limit value A1 is, for example, a value based on the maximum thickness A that allows the first contact surface 41 to be brought into surface contact with the first conductive plate 11 or the second conductive plate 12 with certainty. The lower limit A2 is a value based on the minimum thickness A at which the elastic member 10 is not plastically deformed, for example. By setting the height H of the pedestal component 30 in this way, the pedestal component 30 and the elastic member 10 in a properly compressed state are interposed between the first conductive plate 11 and the second conductive plate 12. An electric path can be formed, and as a result, the first conductive plate 11 and the second conductive plate 12 arranged so as to face each other with a space therebetween can be appropriately electrically connected. The upper limit value A1 and the lower limit value A2 may be set so that the pressure per unit area acting on the elastic member 10 is a pressure within a predetermined range. This pressure range is set in consideration of, for example, the electrical resistance of the contact portion between the contact surface 40 and the contact target member.

  As shown in FIGS. 3 and 4, the pedestal component 30 has a support surface 32 a that contacts the contact surface 40 (second contact surface 42) of the elastic member 10 and supports the elastic member 10. The elastic member 10 is bonded and fixed to the support surface 32a using, for example, an adhesive sheet or an adhesive material. Specifically, in the present embodiment, the pedestal component 30 has a flat plate-like fixing portion 31 fixed to the first conductive plate 11 or the second conductive plate 12 and a support surface 32 a and is fixed to the fixing portion 31. It has the flat support part 32 formed in parallel, and the connection part 33 which connects the fixing | fixed part 31 and the support part 32. As shown in FIG. For example, the fixing portion 31 is fastened and fixed to the first conductive plate 11 or the second conductive plate 12 by a fastening member. The fixed portion 31 and the support portion 32 are disposed at different positions in the facing direction Z, and the height H of the pedestal component 30 described above is determined according to the interval in the facing direction Z between the fixed portion 31 and the support portion 32. . In the present embodiment, the connecting portion 33 is also formed in a flat plate shape. In the present embodiment, the fixing portion 31 and the support portion 32 are formed so that the normal direction of the plate surface is parallel to the facing direction Z. Further, the connecting portion 33 is formed so that the normal direction of the plate surface is inclined with respect to the facing direction Z. In the present embodiment, the normal direction of the connecting portion 33 is included in a plane orthogonal to the second direction Y.

  In the present embodiment, as shown in FIG. 3, the pedestal component 30 includes a pair of connecting portions 33 and a pair of fixing portions 31, and includes a fixing portion 31, a connecting portion 33, a support portion 32, and another connecting portion. 33 and another fixing part 31 are connected in order. In the present embodiment, one connecting portion 33 is connected to one end portion of the support portion 32 in the first direction X, and the other connecting portion 33 is connected to the other end portion of the support portion 32 in the first direction X. It is connected. Moreover, in this embodiment, the space | interval of the 1st direction X of a pair of connection part 33 becomes large as it leaves | separates from the support part 32 along the opposing direction Z. As shown in FIG.

  In this embodiment, the base component 30 is a component formed by sheet metal processing of a conductive plate. Here, an electroconductive board is a board | plate material formed with the material which has electroconductivity. Therefore, in this embodiment, each part of the base component 30 is formed continuously, in other words, it is integrally formed without a joint. Moreover, in this embodiment, as shown in FIG.1 and FIG.2, each fixing | fixed part 31 (refer FIG. 3, FIG. 4) of the adjacent base component 30 is integrally formed. Specifically, a pair of pedestal components 30 adjacent to each other (adjacent in the first direction X in this example) is a pair of pedestal components 30 provided as a first pedestal component and the other as a second pedestal component. The fixed portion 31 closer to the second pedestal component of the fixed portions 31 and the fixed portion 31 closer to the first pedestal component of the pair of fixed portions 31 provided in the second pedestal component are integrated. Is formed.

  Moreover, in this embodiment, as shown in FIG.3 and FIG.4, the base component 30 has the some fall prevention nail | claw 60 standingly arranged from the support surface 32a in the position surrounding the side surface 43 of the elastic member 10. FIG. Yes. That is, the fall prevention claws 60 are arranged in a distributed manner along the outer periphery of the elastic member 10 when viewed in the facing direction Z. The height in the facing direction Z of the fall prevention claw 60 is set to be lower than the thickness A of the elastic member 10 in the facing direction Z. In the present embodiment, as shown in FIG. 1, the outer shape of the elastic member 10 when viewed in the facing direction Z is formed in a polygonal shape, and the fall prevention claw 60 corresponds to each of the sides of the polygon. And it is provided in the outer side (side which is separated from the elastic member 10) of each side part.

  Specifically, in this embodiment, the outer shape of the elastic member 10 when viewed in the facing direction Z is formed in a rectangular shape having two sides along the first direction X and two sides along the second direction Y. ing. Correspondingly, the pedestal component 30 has a first fall prevention claw 61 and a second fall prevention claw 62 that face each other in the first direction X with the elastic member 10 interposed therebetween, and a second direction Y across the elastic member 10. There are a total of four fall prevention claws 60 including the third fall prevention claw 63 and the fourth fall prevention claw 64 facing each other. In this embodiment, the fall prevention claw 60 is formed by bending a part of the conductive plate constituting the pedestal component 30. Specifically, the first fall prevention claw 61 and the second fall prevention claw 62 are formed by bending a part of at least one of the support part 32 and the coupling part 33 away from the fixed part 31. Yes.

  The base component 30 is fixed to one of the first conductive plate 11 and the second conductive plate 12, and the elastic member 10 is disposed so as to contact the other of the first conductive plate 11 and the second conductive plate 12. In the present embodiment, as shown in FIGS. 1 and 2, the pedestal component 30 is fixed to the second conductive plate 12, and the elastic member 10 is disposed so as to contact the first conductive plate 11. That is, the fixing portion 31 of the base component 30 is fixed to the second conductive plate 12, and the contact surface 40 (first contact surface 41) of the elastic member 10 contacts the first conductive plate 11. Here, as described above, in the present embodiment, the first control board 51 is disposed so as to cover a part of the back surface of the first conductive plate 11. Therefore, the contact surface 40 of the elastic member 10 contacts a portion of the back surface of the first conductive plate 11 that is not covered by the first control board 51. That is, the part (contact part 13) where the contact surface 40 of the elastic member 10 contacts in the first conductive plate 11 is disposed at a position that does not overlap the first control board 51 when viewed in the facing direction Z. In the present embodiment, the portion (fixed portion 14) to which the pedestal component 30 (fixed portion 31) is fixed in the second conductive plate 12 is also arranged at a position that does not overlap the first control board 51 when viewed in the facing direction Z. . In the present embodiment, a plurality (specifically, three) of elastic members 10 are provided. As shown in FIG. 1, the plurality of contact parts 13 are arranged along the periphery of the first control board 51. In this example, the plurality of contact portions 13 are arranged in a line along the linear outer edge portion of the first control board 51. Further, in this example, the plurality of contact parts 13 are arranged on one side edge part (a side edge part along one side of the rectangular outer shape) of the first conductive plate 11.

[Other Embodiments]
Finally, other embodiments according to the present invention will be described. Note that the configurations disclosed in the following embodiments can be applied in combination with the configurations disclosed in other embodiments as long as no contradiction arises.

(1) In the above embodiment, the configuration in which the fixing portions 31 of the adjacent pedestal parts 30 are integrally formed has been described as an example. However, the embodiment of the present invention is not limited to this. For example, as in another example shown in FIGS. 5 to 8, the fixing portions 31 of the adjacent pedestal parts 30 are formed independently of each other. You can also. This other example is configured basically in the same manner as the above-described embodiment except for the configuration of the pedestal component 30. Specifically, in this alternative example, as shown in FIGS. 5 and 8, the pedestal component 30 includes one connecting portion 33 and one fixing portion 31. And the connection part 33 is connected to the edge part (edge part on the side away from the 1st control board 51) of the 2nd direction Y in a support part. Further, the connecting portion 33 is formed such that the normal direction of the plate surface is parallel to the second direction Y.

  Also in this other example, the pedestal component 30 includes the first fall prevention claw 61 and the second fall prevention claw 62 facing the first direction X across the elastic member 10 and the elastic member 10, as in the example of the above embodiment. In total, there are four fall prevention claws 60 including a third fall prevention claw 63 and a fourth fall prevention claw 64 facing each other in the second direction Y. However, in this other example, the third fall prevention claw 63 is formed by bending a part of at least one of the support part 32 and the connection part 33 to the side away from the fixing part 31. Further, in this other example, as shown in FIGS. 5 and 8, the pedestal component 30 is bent at the same side on both ends in the first direction X throughout, and from the fixing portion 31. The first fall prevention claw 61 and the second fall prevention claw 62 are formed by the bent portion that continues to the support portion 32 via the connecting portion 33.

(2) In the above-described embodiment, the configuration in which the pedestal component 30 is fixed to the second conductive plate 12 and the elastic member 10 is disposed so as to contact the first conductive plate 11 has been described as an example. However, the embodiment of the present invention is not limited to this, and the pedestal component 30 may be fixed to the first conductive plate 11 and the elastic member 10 may be arranged to contact the second conductive plate 12. . In this case, for example, the portion of the first conductive plate 11 where the pedestal component 30 is fixed is disposed at a position that does not overlap the first control board 51 when viewed in the facing direction Z. Moreover, when the some elastic member 10 is provided like the example of said embodiment, the some site | part to which the base component 30 in the 1st electroconductive board 11 is fixed follows the circumference | surroundings of the 1st control board 51. It is preferable to arrange in this way. For example, a plurality of portions of the first conductive plate 11 to which the pedestal component 30 is fixed are arranged along the linear outer edge portion of the first control board 51, or one edge portion of the first conductive plate 11. It can arrange | position to (the edge part in alignment with one side of a rectangular external shape).

(3) In the above-described embodiment, the configuration in which the plurality of sets of base parts 30 and the elastic member 10 are arranged so as to be aligned in a straight line for each set as viewed in the facing direction Z has been described as an example. However, the embodiment of the present invention is not limited to this, and a plurality of sets of pedestal parts 30 and elastic members 10 are arranged so as to be arranged in a curved line or a polygonal line for each group when viewed in the facing direction Z. Also good. In addition, the plurality of sets of base parts 30 and the elastic member 10 are arranged so as to be divided into a plurality of rows (for example, two rows parallel to each other) as viewed in the opposing direction Z and arranged in groups. You can also. In this case, for example, in the example shown in FIG. 1, the plurality of contact portions 13 are arranged in a line along each of the linear outer edge portions on both sides in the second direction Y in the first control substrate 51 (in total two lines). ) It can be configured to be arranged.

(4) In the above embodiment, the first control board 51 for driving the display panel 20 covers a part of the first conductive plate 11 between the first conductive plate 11 and the second conductive plate 12. The configuration arranged in FIG. However, the embodiment of the present invention is not limited to this, and the first control board 51 may be configured not to be disposed so as to cover a part of the back surface of the first conductive plate 11. For example, such a configuration is obtained when a circuit component for driving the display panel 20 is provided in the display panel 20. Even in such a case, when the other substrate is disposed so as to cover a part of the back surface of the first conductive plate 11, a portion of the first conductive plate 11 that contacts the contact surface 40 of the elastic member 10, Or it is suitable to arrange | position the site | part to which the base component 30 in the 1st electroconductive board 11 is fixed so that the circumference | surroundings of the said other board | substrate may be followed. For example, a relay board having a signal relay function between a control board (for example, the second control board 52) in the housing main body 90 and a circuit component in the display panel 20 may be the other board.

(5) Regarding other configurations, it should be understood that the embodiments disclosed herein are merely examples in all respects. Accordingly, those skilled in the art can make various modifications as appropriate without departing from the spirit of the present disclosure.

[Outline of Embodiment of the Present Invention]
The embodiment of the present invention described above has at least the following configuration.
A display panel (20) having a display surface (21) for displaying an image on the front surface, and conductivity provided on the back side of the display panel (20) and covering at least a part of the back surface of the display panel (20) The first conductive plate (11) is opposite to the display panel (20) side with respect to the first conductive plate (11) so as to face the first conductive plate (11) with a space therebetween. A display device (1) comprising a conductive second conductive plate (12) provided, wherein the second conductive plate (12) is electrically connected to a ground potential portion (90), and Between the first conductive plate (11) and the second conductive plate (12), a conductive pedestal component (30) and a conductive elastic member (10) are connected to the first conductive plate (11). The elastic member (10) is provided in front of the second conductive plate (12) so as to overlap with the opposing direction (Z). The elastic member (10) has contact surfaces (40) on both sides in the facing direction (Z), and the facing distance between the first conductive plate (11) and the second conductive plate (12) is D. The upper limit value of the usable range of the thickness (A) in the facing direction (Z) is A1, the lower limit value of the usable range is A2, and the height of the pedestal component (30) in the facing direction (Z) (H) is set to (D-A1) or more and (D-A2) or less.

According to the above configuration, since the second conductive plate is electrically connected to the ground potential portion, the first conductive plate is also connected to the ground potential by electrically connecting the first conductive plate and the second conductive plate. It can be electrically connected to the part. And according to said structure, although the 1st electroconductive board and 2nd electroconductive board arrange | positioned so that it may oppose with a space | interval may be electrically connected by the base component and the elastic member, Compared to the electrical connection structure of the first conductive plate and the second conductive plate using fastening parts, the electrical connection structure is less subject to restrictions on the installable parts. Because the base component is fixed to one of the first conductive plate and the second conductive plate, and the elastic member is brought into contact with the other of the first conductive plate and the second conductive plate, the first conductive plate and the second conductive plate As long as the first conductive plate and the second conductive plate face each other without interposing another member therebetween, basically, the first conductive plate and the second conductive plate A structure for electrically connecting the plate can be provided.
Furthermore, according to the above configuration, the elastic member has contact surfaces on both sides in the opposing direction, and the elastic member is appropriately compressed from the viewpoint of its usable range in the opposing direction of the pedestal component. The height is set. Therefore, the elastic member and the first conductive plate or the second conductive plate can be appropriately brought into surface contact using the restoring force of the elastic member, and the electric resistance between the first conductive plate and the second conductive plate can be reduced. Reduction can also be achieved.
In addition, according to said structure, since the thickness of an elastic member can be restrained small by the height of the opposing direction of a base component, in order to electrically connect a 1st conductive plate and a 2nd conductive plate It is also possible to reduce the amount of elastic member necessary for the operation. As a result, it is possible to reduce the cost of the entire apparatus and the space occupied by the structure for electrically connecting the first conductive plate and the second conductive plate.
As described above, according to the above-described configuration, the first resistance plate and the second conductive plate can be reduced while the restriction on the installable portion is eased and the electric resistance between the first conductive plate and the second conductive plate is reduced. A structure for electrically connecting the conductive plate and the second conductive plate can be provided.

  Further, according to an embodiment of the present invention, the base part (30) is in contact with the contact surface (40) of the elastic member (10) to support the elastic member (10), and a support surface (32a), It is preferable to have a plurality of fall prevention claws (60) erected from the support surface (32a) at a position surrounding the side surface (43) of the elastic member (10).

  According to this configuration, when manufacturing the display device, the elastic member compressed by the pedestal component and the first conductive plate or the second conductive plate is displaced to a position where it is not supported by the support surface of the pedestal component. It can be suppressed by the prevention claw. Therefore, the manufacturing process of the display device can be simplified. Further, even when the display device is in use, the compressed elastic member can be prevented from shifting to a position where it is not supported by the support surface of the pedestal component due to vibration or the like. It is easy to ensure the reliability of the electrical connection structure with the plate.

  In the embodiment of the present invention, the pedestal component (30) is a component formed by sheet metal processing of a conductive plate, and is fixed to the first conductive plate (11) or the second conductive plate (12). A flat plate-shaped fixing portion (31), a flat plate-shaped supporting portion (32) which has the support surface (32a) and is formed in parallel to the fixing portion (31), and the fixing portion ( 31) and a connecting portion (33) for connecting the support portion (32), and the drop prevention claw (60) is preferably formed by bending a part of the conductive plate. .

  According to this configuration, the fall prevention claw can be formed by a relatively simple process, and the formation process of the fall prevention claw is partially shared with the formation process of the fixing part, the support part, and the connection part of the base part. Therefore, it is possible to further simplify the manufacturing process of the display device.

  Further, according to the embodiment of the present invention, a control board (51) for driving the display panel (20) is provided between the first conductive plate (11) and the second conductive plate (12). The first conductive plate (11) is disposed so as to cover a part of the conductive plate (11), and the first conductive plate (11) contacts the contact surface (40) of the elastic member (10) or the first conductive plate ( It is preferable that the part to which the pedestal component (30) in 11) is fixed is arranged along the periphery of the control board (51).

  According to this configuration, even when the control board for driving the display panel is disposed so as to cover a part of the first conductive plate, the first conductive plate and the second conductive plate sandwich another member therebetween. First, it is possible to provide a structure for electrically connecting the first conductive plate and the second conductive plate using the opposing portions. Furthermore, since the part where the contact surface of the elastic member in the first conductive plate contacts, or the part where the pedestal component is fixed in the first conductive plate is arranged along the periphery of the control board, the first conductive plate It can also be suppressed that the size of is increased only to provide a structure for electrically connecting the first conductive plate and the second conductive plate.

  The present invention includes a display panel having a display surface for displaying an image on the front surface, a conductive first conductive plate provided on the back side of the display panel and covering at least a part of the back surface of the display panel, and a first conductive plate And a conductive second conductive plate provided on the side opposite to the display panel side with respect to the first conductive plate so as to face each other with a gap therebetween.

1: Display device 10: Elastic member 11: First conductive plate 12: Second conductive plate 20: Display panel 21: Display surface 30: Base part 31: Fixing part 32: Support part 32a: Support surface 33: Connection part 40: Contact surface 43: Side surface 51: First control board (control board)
60: Fall prevention claw 90: Housing body (ground potential part)
A: Elastic member thickness D: Opposite spacing H: Pedestal component height Z: Opposite direction

Claims (5)

A display panel having a display surface for displaying an image on the front surface, a conductive first conductive plate provided on the back side of the display panel and covering at least a part of the back surface of the display panel, and the first conductive plate A conductive second conductive plate provided on a side opposite to the display panel side with respect to the first conductive plate so as to be opposed to each other with a gap, and a display device comprising:
The second conductive plate is electrically connected to a ground potential portion,
Between the first conductive plate and the second conductive plate, a conductive pedestal component and a conductive elastic member are provided so as to overlap each other in the opposing direction of the first conductive plate and the second conductive plate. ,
The elastic member has a contact surface on each of both sides in the facing direction,
The facing distance between the first conductive plate and the second conductive plate is D, the upper limit value of the usable thickness of the elastic member in the facing direction is A1, and the lower limit value of the usable range is A2.
The height in the facing direction of the pedestal component is set to (D-A1) or more and (D-A2) or less ,
A control board for driving the display panel is disposed between the first conductive plate and the second conductive plate so as to cover a part of the first conductive plate,
A display device in which a ground portion of the display panel and the first conductive plate are electrically connected, and a ground portion of the control board and the first conductive plate are electrically connected .   The pedestal component includes a support surface that contacts the contact surface of the elastic member to support the elastic member, and a plurality of fall prevention claws that are erected from the support surface at a position surrounding the side surface of the elastic member. The display device according to claim 1. The pedestal component is a component formed by sheet metal processing of a conductive plate, and has a flat plate-like fixed portion fixed to the first conductive plate or the second conductive plate, the support surface, and the fixed portion. A flat plate-like support portion formed in parallel with the fixing portion and the connecting portion for connecting the support portion,
The display device according to claim 2, wherein the fall prevention claw is formed by bending a part of the conductive plate. A plurality of sets of the pedestal component and the elastic member arranged to overlap in the facing direction are provided,
A plurality of portions the contact surface of the plurality of the elastic member in the first conductive plate is in contact, or, more sites where a plurality of said pedestal component in said first conductive plate is fixed, viewed in the opposite direction the display device according to any one of claims 1-3, which is arranged so as to line up I along the periphery of the control board.   The pedestal component is a component formed by sheet metal processing of a conductive plate, and a pair of plate-like fixing portions fixed to the first conductive plate or the second conductive plate, and the contact surface of the elastic member A support surface for supporting the elastic member in contact with the flat plate, and a flat plate-like support portion formed in parallel to the pair of the fixing portions, and the pair of the fixing portions and the support portions are connected to each other. A pair of connecting portions;
  The display device according to claim 4, wherein the fixing portions of the adjacent base parts are integrally formed.

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