JP2016118641A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a display device that can suppress an influence of an electromagnetic noise generated from a first substrate on a signal propagating in a wiring member.SOLUTION: A first substrate 51 has an electronic element 30 arranged thereon that is a source of electromagnetic noise, and a conductive shield member 60 provided thereon that covers the electronic element 30 from a second substrate 52 side. A flexible wiring member 40 connecting the first substrate 51 and second substrate 52 has an opposing part 43 arranged on the opposite side of the electronic element 30 with respect to the shield member 60 to be opposite to the shield member 60. A non-conductive spacer 70 is arranged between the opposing part 43 and shield member 60.SELECTED DRAWING: Figure 2

Description

  The present invention provides a display panel having a display surface for displaying an image on the front surface, a first substrate provided on the back side of the display panel, a display panel side with respect to the first substrate so as to be spaced from the first substrate, Relates to a display device comprising a second substrate provided on the opposite side and a flexible wiring member for connecting the first substrate and the second substrate.

  As such a display device, a display device described in Japanese Patent Application Laid-Open No. 2005-197419 (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 panel 3], a first board [panel circuit board 26], a second board [main circuit board 25], and a wiring member [flexible cable 27]. Describes a technique for preventing the wiring member from being disconnected and the connection portion between the wiring member and the second substrate from being defective.

Japanese Patent Laying-Open No. 2005-197419 (FIG. 2 etc.)

  By the way, as shown in FIG. 2 of Patent Document 1, when the portion of the wiring member on the connection portion side with the first substrate is arranged along the first substrate, the signal flowing through the wiring member is It becomes susceptible to electromagnetic noise (radiation noise) generated from one substrate. And when this influence is large, the quality of the signal which flows through a wiring member may deteriorate and may affect the function of a display apparatus. However, Patent Document 1 does not have a description referring to this point.

  Therefore, it is desired to realize a display device capable of suppressing the influence of electromagnetic noise generated from the first substrate on the signal flowing through the wiring member.

  In view of the above, a display panel having a display surface for displaying an image on the front surface, a first substrate provided on the back side of the display panel, and the first substrate so as to be spaced from the first substrate A characteristic configuration of a display device including a second substrate provided on the side opposite to the display panel side and a flexible wiring member connecting the first substrate and the second substrate is the first substrate. An electronic element that is a source of electromagnetic noise is disposed, and a conductive shield member that covers the electronic element from the second substrate side is provided, and the wiring member faces the shield member so as to face the shield member. It has an opposing part arrange | positioned on the opposite side to the said electronic element side with respect to a member, It exists in the point by which a nonelectroconductive spacer is arrange | positioned between the said opposing part and the said shield member.

Since the wiring member is a member that connects the first substrate and the second substrate, the wiring member has a portion disposed on the second substrate side with respect to the first substrate. In this regard, according to the above-described characteristic configuration, the conductive shield member is provided so as to cover the electronic element that is an electromagnetic noise generation source arranged on the first substrate from the second substrate side. Therefore, it can suppress that the signal which flows through the wiring member which has a part arrange | positioned with respect to a 1st board | substrate at the 2nd board | substrate side receives the influence of the said electromagnetic noise by the shielding effect by a shield member. In addition, according to the above characteristic configuration, the non-conductive spacer is disposed between the shield member and the facing portion, which is a portion disposed to face the shield member in the wiring member. Since the wiring member is flexible, it is easily deformed or displaced by an external force. However, by interposing a spacer between the facing portion and the shield member, the wiring member is prevented from contacting the shield member. Can do. As a result, it is possible to suppress the deterioration of the quality of the signal flowing through the wiring member due to the current induced in the shield member and the magnetic field generated by the current due to the shielding of the electromagnetic noise.
As described above, according to the above characteristic configuration, the influence of electromagnetic noise generated from the first substrate on the signal flowing through the wiring member can be suppressed by providing the shield member and the spacer. As a result, the electromagnetic noise shielding performance required for the wiring member can be kept low, and the cost of the entire apparatus can be reduced accordingly.

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 disassembled perspective view of the display apparatus which concerns on other embodiment of this invention. It is IV-IV sectional drawing in FIG.

  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 flexible display panel 20, a first control board 51, a second control board 52, and a first control board 51 and a second control board 52. And a wiring member 40. The control board is a circuit board (for example, a printed board) on which a control circuit component (IC or the like) is mounted. That is, the control substrate is formed on a substrate formed using a non-conductive (electrical insulating) material (for example, synthetic resin), and various control circuits (for example, a power control circuit, an image control circuit, etc.) ) Is formed. In the present embodiment, the first control board 51 has a rectangular outer shape when viewed in a direction orthogonal to the plate surface (in this example, the same direction as a facing direction Z described later). The “plate surface” means the surface of a portion formed in a planar shape excluding a stepped portion and an uneven portion. In the following, the direction orthogonal to the opposing direction Z and along the one side (long side in this example) of the rectangle is defined as the first direction X, and the direction orthogonal to both the opposing direction Z and the first direction X is defined as the first direction X. 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, the first control board 51 corresponds to the “first board” in the present invention, and the second control board 52 corresponds to the “second board” in the present invention.

  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 control board 51 is provided on the back side of the display panel 20. The first control board 51 is supported by the cover body 91. In the present embodiment, the cover body 91 is formed using a non-conductive material. The first control board 51 is disposed so as to cover at least a part (a part in this example) of the back surface of the display panel 20 (a surface opposite to the display surface 21). In the present embodiment, the display panel 20 (display surface 21) and the first control board 51 are arranged in parallel to each other.

  In the present embodiment, the first control board 51 is disposed so as to be spaced from the display panel 20, and the conductive first conductive plate 11 is provided between the first control board 51 and the display panel 20. It has been. 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 11 a formed so as to protrude to the back side (the side opposite to the display panel 20 side). 51 is fixed to the first conductive plate 11 in contact with the seat portion 11a. The first control board 51 is disposed so as to cover a part of the back surface of the first conductive plate 11. In the present embodiment, the first conductive plate 11 and the first control board 51 are arranged in parallel to each other. The first conductive plate 11 is formed using a conductive material (for example, a metal such as copper, aluminum, iron, etc.), like the second conductive plate 12 described later. The first conductive plate 11 functions as an electromagnetic shield plate that suppresses the influence of electromagnetic noise generated by one of the display panel 20 and the first control board 51 on the other.

  The second control board 52 is provided on the side opposite to the display panel 20 side (the back side of the first control board 51) with respect to the first control board 51 so as to be spaced from the first control board 51. . In the present embodiment, as shown in FIG. 2, the second control board 52 is not arranged to face the first control board 51. Specifically, the normal direction (direction orthogonal to the plate surface) of the second control board 52 is perpendicular to the normal direction (opposite direction Z in this example) of the first control board 51 (this example). In the second direction Y).

  In the present embodiment, the second control board 52 is supported by the housing body 90. The housing body 90 is formed using a conductive material. The housing main body 90 includes a second conductive plate 12 disposed on the opposite side of the display panel 20 side with respect to the first control board 51 so as to face the first control board 51 with a space therebetween. Yes. In the present embodiment, the entire second control board 52 is disposed on the side opposite to the first control board 51 side (the back side of the second conductive board 12) with respect to the second conductive board 12. In the present embodiment, the first control board 51 and the second conductive plate 12 are arranged such that the plate surfaces on the opposite sides are parallel to each other. Furthermore, in the present embodiment, the second conductive plate 12 is disposed so as to cover the entire back surface of the first control board 51. The second conductive plate 12 functions as an electromagnetic shield plate that suppresses the influence of electromagnetic noise generated by one of the first control board 51 and the components (for example, the second control board 52) in the housing body 90 on the other. In the present embodiment, the housing main body 90 corresponds to the “support member” in the present invention, and the second conductive plate 12 corresponds to the “plate-shaped portion” in the present invention.

  The first control board 51 and the second control board 52 are connected by a flexible wiring member 40. The wiring member 40 transmits an electrical signal between the first control board 51 and the second control board 52. In the present embodiment, the first control board 51 is a control board for driving the display panel 20, and the first control board 51 has circuit components (for example, a driver IC) for driving the display panel 20. Implemented. In addition, as a circuit component for driving the display panel 20, a circuit component constituting a power supply circuit (power conversion circuit), a circuit component constituting an image control circuit, or the like may be mounted on the first control board 51. . 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 via the wiring member 40. 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.

  A connection portion at one end of the wiring member 40 is connected to a connector provided on the first control board 51, and a connection portion at the other end of the wiring member 40 is connected to a connector provided on the second control board 52. In the present embodiment, as shown in FIGS. 1 and 2, the second conductive plate 12 is formed with an opening 12 a that penetrates the second conductive plate 12 in the facing direction Z, and the connection member 40 has the opening. It arrange | positions through the part 12a. In the present embodiment, as shown in FIG. 1, a first wiring member 41 and a second wiring member 42 are provided as the wiring member 40. And as shown in FIG. 2, the connection part of the one end of the 1st wiring member 41 is connected to the 1st connector 81 provided in the 1st control board 51, and the connection part of the other end of the 1st wiring member 41 is The second connector 83 is provided on the second control board 52. Further, the connection portion at one end of the second wiring member 42 is connected to a third connector 82 (see FIG. 1) provided on the first control board 51, and the connection portion at the other end of the second wiring member 42 is The second control board 52 is connected to a fourth connector (not shown) provided on the control board 52.

  Since the first wiring member 41 and the second wiring member 42 are configured in the same manner except that the arrangement positions in the first direction X are different, the following description will be made without distinguishing them. A plurality of second control boards 52 are provided inside the housing body 90, and the first wiring member 41 and the second wiring member 42 connect the first control board 51 and different second control boards 52 to each other. It can also be set as the structure to do. Even in this case, the portion of the first wiring member 41 and the second wiring member 42 arranged between the second conductive plate 12 and the first control board 51 is arranged in the first direction X. Except for the differences, they are similar to each other.

  In the present embodiment, a flexible flat cable is used as the wiring member 40. That is, in this embodiment, the wiring member 40 has a strip-shaped outer shape as a whole. In the present embodiment, the wiring member 40 simply functions as a wiring. Specifically, the wiring member 40 has a configuration in which a plurality of linear conductors arranged in the width direction are covered with an electrically insulating covering member. In addition, in the connection part formed in the both ends in the extending direction of the wiring member 40, each edge part of a several linear conductor is exposed. Since the wiring member 40 has flexibility, the shape of the wiring member 40 in a state where the first control board 51 and the second control board 52 are connected is an external force (including gravity) acting on the wiring member 40. ).

  In the present embodiment, as shown in FIGS. 1 and 2, the wiring member 40 is bent around an axis perpendicular to the facing direction Z (in this example, an axis parallel to the first direction X) at the folded portion 44. Has the shape. And the part which goes to the connection part side with the 1st control board 51 from the return part 44 in the wiring member 40 with respect to the part which goes to the connection part side with the 2nd control board 52 from the return part 44 in the wiring member 40, It arrange | positions so that it may overlap from the 1st control board 51 side. And the part which goes along the 1st control board 51 is contained in the part which goes to the connection part side with the 1st control board 51 from the folding | returning part 44 in the wiring member 40. FIG. Here, regarding the arrangement of the members, “arrangement along the substrate” is not limited to the arrangement in which the extending direction of the member is parallel to the plate surface of the substrate, and the extending direction of the member is on the plate surface of the substrate. On the other hand, it is used as a concept including an arrangement that intersects within a predetermined angle range (for example, a range of 10 ° or less, a range of 20 ° or less, etc.).

  As described above, since the wiring member 40 has a portion arranged along the first control board 51, the influence of electromagnetic noise generated from the first control board 51 on the signal flowing through the wiring member 40 is appropriately suppressed. There is a need. As described below, in the display device 1 according to the present embodiment, the first control substrate 51 is provided by providing the conductive shield member 60 and the non-conductive spacer 70 as shown in FIGS. 1 and 2. This suppresses the influence of the electromagnetic noise generated from the above on the signal flowing through the wiring member 40.

  As shown in FIG. 2, the electronic element 30 that is a source of electromagnetic noise is disposed on the first control board 51, and the shield member 60 is configured to connect the electronic element 30 disposed on the first control board 51 to the second. It arrange | positions so that it may cover from the control board 52 side. That is, the shield member 60 is arranged so as to completely overlap the electronic element 30 when viewed from the second control board 52 side along the direction orthogonal to the first control board 51. The shield member 60 is formed using a conductive material. In the present embodiment, the shield member 60 is disposed between the first control board 51 and the second conductive plate 12. Here, in the case where the shield member 60 is not provided, the electronic element 30 is affected by the influence of the degree that affects the function of the display device 1 (for example, the degree that causes the malfunction of the display device 1). This is a source of electromagnetic noise given to the signal flowing through. The electronic element 30 is a circuit element (circuit component) such as a switching element, a reactor, or a transformer. The electronic element 30 is, for example, a circuit element (circuit component) that constitutes a power supply circuit (power conversion circuit), an image control circuit, or the like. When a plurality of electronic elements 30 that are electromagnetic noise sources are arranged on the first control board 51, a shield member 60 is provided so as to cover all of the plurality of electronic elements 30, or a single or a plurality of electronic elements 30 are provided. It is preferable to provide a plurality of shield members 60 that respectively cover the electronic elements 30.

  In the present embodiment, the electronic element 30 is disposed on the surface (element disposition surface) of the first control substrate 51 on the second control substrate 52 side (second conductive plate 12 side), and the shield member 60 includes the element It arrange | positions so that the electronic element 30 may be covered from the arrangement | positioning surface side. In the present embodiment, the shield member 60 includes a flat top wall portion arranged in parallel to the first control board 51 on the opposite side of the electronic element 30 from the first control board 51 side, and the top wall. And a peripheral wall portion extending from the peripheral portion of the portion toward the first control board 51 side. In this example, the peripheral wall portion is continuously formed over the entire periphery of the peripheral edge portion of the top wall portion. In the present embodiment, the shield member 60 is fixed to the first control board 51. Specifically, the peripheral wall portion of the shield member 60 is fixed to the first control board 51. In the present embodiment, the shield member 60 is grounded in order to appropriately diffuse energy resulting from electromagnetic noise generated by the electronic element 30. It should be noted that “grounding” is naturally used as a concept including a case where a potential other than the ground (for example, a vehicle body) is used as a reference of potential. Although a detailed description is omitted, in the present embodiment, the shield member 60 is a housing main body 90 (for example, the housing main body 90) that functions as the ground of the electronic device 100 via the first control board 51 and the first conductive plate 11. The second conductive plate 12) is electrically connected.

  The wiring member 40 has a facing portion 43 (facing surface) disposed on the side opposite to the electronic element 30 side with respect to the shielding member 60 so as to face the shielding member 60. The facing portion 43 is disposed so as to face the shield member 60 from the second control board 52 side (second conductive plate 12 side) with respect to the shield member 60. The facing direction Z described above is a direction in which the facing portion 43 and the shield member 60 face each other. The facing portion 43 is a portion that overlaps with the shield member 60 (in this example, the top wall portion) when viewed in the facing direction Z of the wiring member 40. In the present embodiment, the facing portion 43 is formed in a planar shape. In the present embodiment, as shown in FIG. 2, the portion including the facing portion 43 in the wiring member 40 is disposed between the first control board 51 and the second conductive plate 12 along the first control board 51. Yes.

  A non-conductive spacer 70 is disposed between the facing portion 43 and the shield member 60. The spacer 70 is formed using a non-conductive (electrically insulating) material. In the present embodiment, the spacer 70 is formed using a material having elasticity (cushioning property) in addition to non-conductivity (for example, a synthetic resin such as urethane). In the present embodiment, the spacer 70 is formed in a sheet shape. For example, a synthetic resin sheet such as a urethane sheet (urethane foam) can be used as the spacer 70. Note that the degree of elasticity of the spacer 70 is such that even when the spacer 70 is compressed by the wiring member 40 (opposing portion 43) and the shield member 60 by the restoring force acting on the wiring member 40, the opposing portion 43 and the shielding member 60 Is set to such an extent that an appropriate separation distance can be secured and the flexible deformation of the wiring member 40 is not excessively hindered. Note that the spacer 70 may be formed using a material that does not have elasticity.

  In the present embodiment, as shown in FIGS. 1 and 2, the spacer 70 is fixed to the facing portion 43 so as to cover the entire facing portion 43. Specifically, the spacer 70 is continuously arranged over the entire area of the facing portion 43. In addition, considering the dimension of the spacer 70 and the tolerance of the mounting position, even when the dimension of the spacer 70 and the mounting position are shifted within the tolerance range, the entire facing portion 43 is covered by the spacer 70. It is preferable to set such dimensions. In addition, considering the dimension of the spacer 70 and the tolerance of the mounting position, the spacer 70 does not protrude from the wiring member 40 even if the dimension of the spacer 70 or the mounting position has a deviation within the tolerance range. It is preferable to set to a proper size. In this case, when the edge of the facing part 43 constitutes the edge of the wiring member 40, the dimension of the spacer 70 can be smaller than the dimension of the facing part 43 by an amount corresponding to the tolerance. In this specification, even when the size of the spacer 70 is smaller than the size of the facing portion 43 by an amount corresponding to the tolerance, it is included in the concept that the entire facing portion 43 is covered with the spacer 70. In the present embodiment, as shown in FIG. 2, the spacer 70 is fixed to the wiring member 40 so as to cover the peripheral portion of the facing portion 43 in the wiring member 40.

  Although a detailed description is omitted, the display panel 20 and the first conductive member are connected in a state where the first control board 51 and the second control board 52 are connected by the wiring member 40 using the flexibility of the wiring member 40. By attaching the cover body 91 in a state in which the plate 11 and the first control board 51 are assembled to the housing body 90 in a state in which the second control board 52 is assembled as shown by the broken line arrows in FIG. The display device 1 according to this embodiment can be manufactured.

[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 spacer 70 is fixed to the facing portion 43 so as to cover the entire facing portion 43 has been described as an example. However, the embodiment of the present invention is not limited to this. For example, as in the example shown in FIGS. 3 and 4, the spacer 70 is a region facing the facing portion 43 in the shield member 60 (hereinafter referred to as “facing region”). It can also be set as the structure fixed to the shield member 60 so that the whole may be covered. In the example shown in FIGS. 3 and 4, the shield member 60 is parallel to the first control board 51 on the side opposite to the first control board 51 side with respect to the electronic element 30 as in the example of the above embodiment. The flat top wall part arrange | positioned in a shape and the peripheral wall part extended toward the 1st control board 51 side from the peripheral part of the said top wall part are provided. And the opposing area | region in the shield member 60 is formed in the said top wall part. In the example shown in FIGS. 3 and 4, the spacer 70 is arranged so that the spacer 70 does not protrude from the shield member 60 (the top wall portion) even when the spacer 70 is attached within the tolerance range. The dimension in the two directions Y is set to be smaller than the dimension in the second direction Y of the facing region of the shield member 60. In this specification, even when the size of the spacer 70 is smaller than the opposing region in the shield member 60 by an amount corresponding to the tolerance, it is included in the concept that the entire opposing region is covered with the spacer 70.

(2) In the above embodiment, the configuration in which the spacer 70 is continuously disposed over the entire area of the facing portion 43 has been described as an example. However, the embodiment of the present invention is not limited to this, and a plurality of spacers may be provided discretely in at least one direction orthogonal to the facing direction Z. Even in this case, it is preferable to provide a plurality of spacers over the entire area of the opposed portion 43 or over the entire opposed area of the shield member 60 described above with respect to the example shown in FIGS. 3 and 4. .

(3) In the above embodiment, the configuration in which the electronic element 30 covered from the second control board 52 side by the shield member 60 is arranged on the surface of the first control board 51 on the second control board 52 side will be described as an example. did. However, the embodiment of the present invention is not limited to this, and the electronic element 30 covered from the second control board 52 side by the shield member 60 is the surface of the first control board 51 opposite to the second control board 52 side. It can also be set as the structure arrange | positioned (the surface at the side of the display panel 20). That is, in this case, the electronic element 30 is covered from the second control board 52 side by the first control board 51 in addition to the shield member 60.

(4) In the above embodiment, the configuration in which the wiring member 40 is a flexible flat cable has been described as an example. However, the embodiment of the present invention is not limited to this, and it is also possible to use a flexible printed circuit board (flexible printed circuit board) as the flexible wiring member 40. In this case, unlike the example of the above-described embodiment, the wiring member 40 has a function as a circuit board in addition to a function as a wiring.

(5) In the above embodiment, the configuration in which both the first substrate and the second substrate are control substrates has been described as an example. However, the embodiment of the present invention is not limited to this, and one or both of the first substrate and the second substrate may be a relay substrate having only a signal relay function.

(6) 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, a first substrate (51) provided on the back side of the display panel (20), and the first substrate (51) are spaced from each other. A second substrate (52) provided on the side opposite to the display panel (20) side with respect to the first substrate (51) so as to be open, the first substrate (51), and the second substrate (52) A display device (1) having a flexible wiring member (40) for connecting to the electronic device (30), wherein an electronic element (30) serving as a source of electromagnetic noise is disposed on the first substrate (51). A conductive shield member (60) that covers the electronic element (30) from the second substrate (52) side is provided, and the wiring member (40) is arranged to face the shield member (60). Opposite to the electronic element (30) side with respect to the shield member (60) It has opposing portions (43) disposed, between the opposing portion (43) and said shield member (60), non-conductive spacers (70) are arranged.

Since the wiring member is a member that connects the first substrate and the second substrate, the wiring member has a portion disposed on the second substrate side with respect to the first substrate. In this regard, according to the above configuration, the conductive shield member is provided so as to cover from the second substrate side the electronic element that is the source of electromagnetic noise disposed on the first substrate. Therefore, it can suppress that the signal which flows through the wiring member which has a part arrange | positioned with respect to a 1st board | substrate at the 2nd board | substrate side receives the influence of the said electromagnetic noise by the shielding effect by a shield member. In addition, according to the above configuration, the non-conductive spacer is disposed between the facing member, which is a portion disposed so as to face the shield member in the wiring member, and the shield member. Since the wiring member is flexible, it is easily deformed or displaced by an external force. However, by interposing a spacer between the facing portion and the shield member, the wiring member is prevented from contacting the shield member. Can do. As a result, it is possible to suppress the deterioration of the quality of the signal flowing through the wiring member due to the current induced in the shield member and the magnetic field generated by the current due to the shielding of the electromagnetic noise.
As described above, according to the above configuration, the influence of electromagnetic noise generated from the first substrate on the signal flowing through the wiring member can be suppressed by providing the shield member and the spacer. As a result, the electromagnetic noise shielding performance required for the wiring member can be kept low, and the cost of the entire apparatus can be reduced accordingly.

  In the embodiment of the present invention, the support member (90) supporting the second substrate (52) faces the first substrate (51) such that the support member (90) faces the first substrate (51) with a space therebetween. On the other hand, a plate-like portion (12) arranged on the opposite side to the display panel (20) side is provided, and a portion including the facing portion (43) in the wiring member (40) is the first substrate (51). ) And the plate-like portion (12), it is preferable to be disposed along the first substrate (51).

  According to this configuration, the distance between the wiring member and the electronic element that is the source of electromagnetic noise is likely to be shorter than when the portion including the facing portion of the wiring member is not disposed along the first substrate. . In this regard, as described above, the influence of electromagnetic noise generated from the first substrate on the signal flowing through the wiring member is suppressed by providing the shield member and the spacer. A portion including the portion can be disposed along the first substrate. As a result, the distance between the first substrate and the plate-like portion can be kept short, and the entire apparatus in the direction orthogonal to the first substrate can be reduced in size.

  In the embodiment of the present invention, the spacer (70) is fixed to the facing portion (43) so as to cover the entire facing portion (43), or the facing portion of the shield member (60). It is preferable that the shield member (60) is fixed so as to cover the entire region facing (43).

  According to this configuration, since the spacer is continuously provided between the facing portion and the shield member, it is possible to further suppress the wiring member from contacting the shield member. Further, since the spacer is fixed to the facing portion of the wiring member or the shield member, the spacer can be arranged using the existing member in the display device without separately providing a member only for supporting the spacer. There are also advantages.

  The present invention provides a display panel having a display surface for displaying an image on the front surface, a first substrate provided on the back side of the display panel, a display panel side with respect to the first substrate so as to be spaced from the first substrate, Can be used for a display device including a second substrate provided on the opposite side and a flexible wiring member for connecting the first substrate and the second substrate.

1: Display device 12: Second conductive plate (plate-like portion)
20: Display panel 21: Display surface 30: Electronic element 40: Wiring member 43: Opposing portion 51: First control board (first board)
52: Second control board (second board)
60: Shield member 70: Spacer 90: Housing body (support member)

Claims (3)

A display panel having a display surface for displaying an image on the front surface, a first substrate provided on the back side of the display panel, and the display panel side with respect to the first substrate so as to be spaced from the first substrate; Is a display device comprising a second substrate provided on the opposite side, and a flexible wiring member that connects the first substrate and the second substrate,
An electronic element that is a source of electromagnetic noise is disposed on the first substrate,
A conductive shield member is provided to cover the electronic element from the second substrate side;
The wiring member has a facing portion disposed on the side opposite to the electronic element side with respect to the shielding member so as to face the shielding member;
A display device in which a non-conductive spacer is disposed between the facing portion and the shield member. The support member that supports the second substrate includes a plate-like portion that is disposed on the opposite side of the display panel from the first substrate so as to face the first substrate with a space therebetween.
The display device according to claim 1, wherein a portion including the facing portion in the wiring member is disposed along the first substrate between the first substrate and the plate-like portion.   2. The spacer is fixed to the opposing portion so as to cover the entire opposing portion, or is fixed to the shield member so as to cover the entire region of the shield member facing the opposing portion. Or the display apparatus of 2.

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