JP5926905B2 - Display device and television device - Google Patents

Description

  The present invention relates to a display device and a television device, and more particularly to a display device and a television device including a display panel including a substrate mounting member.

  Conventionally, a display device and a television device including a display panel including a substrate mounting member are known (for example, see Patent Document 1).

  Patent Document 1 discloses a display device including a display unit (display panel), an exterior frame (front housing) disposed on the front side of the display unit, and a cover disposed on the rear side of the display unit. (Television device) is disclosed. The display unit includes a metal plate (substrate mounting member) having a substrate mounting portion on the rear surface, a circuit board attached to the substrate mounting portion of the metal plate, and a periphery of the circuit board attached to the substrate mounting portion of the metal plate. And a frame-shaped synthetic resin case having a through-hole disposed so as to surround. Moreover, the cover is arrange | positioned so that the circuit board attached to the board | substrate mounting part of a metal plate may be covered by attaching to a synthetic resin case so that the through-hole formed in the synthetic resin case may be plugged up.

JP 2011-8026 A

  However, in the display device (television device) described in Patent Document 1, the cover is attached to the board mounting portion of the metal plate so as to cover the circuit board attached to the board mounting portion of the metal plate. There is a disadvantage that it is necessary to separately arrange a synthetic resin case around the circuit board. For this reason, there exists a problem that the number of parts of a display part (display panel) increases because the synthetic resin case is arranged.

  The present invention has been made to solve the above-described problems, and one object of the present invention is to provide a display device and a television device capable of suppressing an increase in the number of parts. That is.

Means for Solving the Problems and Effects of the Invention

A display device according to a first aspect of the present invention includes a metal board mounting member, a circuit board disposed on one side of the board mounting member, and a part of one side of the board mounting member so as to cover the circuit board. The cover member is disposed only on the two sides of the substrate mounting member, and the cover member has a recess for accommodating the circuit board in a predetermined direction perpendicular to the surface of the display panel. recess of cross-section that is recessed in a substantially trapezoidal shape.

The first In the display apparatus aspect, as described above, it is possible to directly cover the circuit board attached to the substrate attachment region of the base plate mounting member by the cover member, separately providing a member other than the cover member Since there is no need, it is possible to suppress an increase in the number of parts. Also, unlike the case where both the board mounting area and the non-board mounting area of the board mounting member are covered with the cover member, the heat generated from the circuit board is efficiently transferred from the non-board mounting area where the board mounting member is exposed to the outside. Heat can be dissipated. In addition, even when the cover member is arranged so as to cover only a part of the board mounting member (board mounting area) by forming the rear housing by at least the non-board mounting area where the board mounting member is exposed, separately. There is no need to provide a rear housing.

In the display device according to the first aspect, preferably, the circuit board has an external connection terminal, cover member has an opening for exposing the external connection terminals of the circuit board. With this configuration, the external connection terminal of the circuit board is easily connected to the connection wiring of an electronic device or the like installed outside through the opening of the cover member in a state where the circuit board is covered with the cover member. be able to.

In the display device according to the first aspect, preferably, the substrate mounting member functions as a heat radiating portion for radiating also heat of the circuit board to the outside and less. If comprised in this way, since the heat | fever tends to be transmitted compared with the case where the board | substrate attachment member which comprises a rear housing | casing is resin, for example, the heat | fever generate | occur | produced from the circuit board can be thermally radiated more efficiently from the outside.

In the display device according to the first aspect, preferably, one aspect includes an exposed portion exposed to Rutotomoni outside provided so as to surround the cover member. If comprised in this way, since the area of the exposed area effective for heat radiation can be increased by the non-board mounting area exposed so as to surround the board mounting area of the board mounting member, the board of the board mounting member The heat generated from the circuit board attached to the attachment region can be radiated more effectively.

In the display device according to the first aspect, preferably, the substrate mounting member includes a concave-shaped portion recessed flats side, the cover member is attached to fit into the concave shaped portion. According to this configuration, unlike the case where the board mounting area of the board mounting member is formed in a flat surface shape, the thickness of the entire apparatus is reduced because the board mounting area of the board mounting member is formed in a concave shape. can do.

In the display device according to the first aspect preferably further comprises a frame-shaped front housing having a peripheral portion in covering the periphery of the outer peripheral edge portion close to the outer peripheral edge of the base plate mounting member. According to this structure, the front casing and the rear casing (substrate mounting member) can be easily obtained by bringing the inner peripheral edge of the front casing close to the outer peripheral edge of the substrate mounting member constituting the rear casing. Can be formed into a corresponding shape.

In the display device according to the first aspect, preferably, further comprises a speaker, the cover member is disposed so as to cover the speaker in addition to the circuitry board. If comprised in this way, since it is not necessary to provide the member for covering a speaker separately, the increase in a number of parts can be suppressed.

In the configuration in which the cover member has an opening that exposes the external connection terminal of the circuit board , the cover member is preferably formed such that one side surface of the display panel in the longitudinal direction is substantially perpendicular to one surface of the substrate mounting member. The external connection terminal is disposed so as to be exposed to the outside of the cover member through an opening formed on one side surface .

In the display device according to the first aspect described above, preferably, the substrate mounting member includes a convex portion that protrudes toward one surface on the outer peripheral edge side of the cover member, and has a space portion on the two surfaces side of the convex portion. .

It is the whole perspective view which looked at the liquid crystal television device by one embodiment of the present invention from the front side. It is the whole perspective view which looked at the liquid crystal television device by one embodiment of the present invention from the back side. It is a rear view (rear view) of the liquid crystal television apparatus by one Embodiment of this invention. It is a disassembled perspective view of the liquid crystal television apparatus by one Embodiment of this invention. It is a top view of the rear frame to which the circuit board of the liquid crystal television apparatus by one Embodiment of this invention was attached. It is a rear view (rear view) of the cover member of the liquid crystal television apparatus by one Embodiment of this invention. It is a block diagram of the liquid crystal television apparatus by one Embodiment of this invention. It is sectional drawing along the 200-200 line | wire of FIG. 1 is an overall perspective view of a rear frame of a liquid crystal television device according to an embodiment of the present invention. It is a figure which shows the case where the cover member by one Embodiment of this invention is attached to the rear frame of 19 type | mold liquid crystal television apparatus. It is a figure which shows the case where the cover member by one Embodiment of this invention is attached to the rear frame of 22 type | mold liquid crystal television apparatus.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings.

  With reference to FIGS. 1-9, the structure of the liquid crystal television apparatus 100 by one Embodiment of this invention is demonstrated. The liquid crystal television device 100 is an example of the “display device” and “television device” in the present invention.

  As shown in FIG. 1 and FIG. 2, the liquid crystal television device 100 according to an embodiment of the present invention has a rectangular shape and a frame-shaped front housing 1 and liquid crystal housed in the front housing 1. A module 2 and a stand member 3 that supports the entire liquid crystal television device 100 are provided. The liquid crystal module 2 is an example of the “display panel” in the present invention. Both the front housing 1 and the stand member 3 are made of resin.

2 and 3, a metal rear frame 5 made of sheet metal is disposed on the rear surface (one surface) side (arrow Y2 direction side) of the front housing 1. The rear frame 5 is an example of the “board mounting member” in the present invention. The rear frame 5 has a rectangular shape when viewed from the rear, and is smaller than the front housing 1. Further, as shown in FIG. 3, the inner peripheral surface portion 1 a of the front housing 1 is disposed so as to approach (contact) the outer peripheral surface portion 50 of the rear frame 5 and cover the periphery of the outer peripheral surface portion 50 of the rear frame 5. Has been. The inner peripheral surface portion 1a is an example of the “inner peripheral edge portion” in the present invention, and the outer peripheral surface portion 50 is an example of the “outer peripheral edge portion” in the present invention.

  A resin cover member 6 is attached to the back side of the metal rear frame 5. The cover member 6 has a rectangular shape when viewed from the rear, and is smaller than the front housing 1 and the rear frame 5.

  As shown in FIG. 4, a light reflecting sheet (not shown) is provided between the front housing 1 and the rear frame 5 from the rear frame 5 toward the front housing 1 (the direction of the arrow Y1). ), A light guide plate (not shown), an optical sheet (not shown), a frame-shaped resin frame 4a, a liquid crystal cell (not shown), a frame-shaped bezel (not shown), and the like. A light source 4b composed of a plurality of LEDs is disposed on the side of the resin frame 4a. The liquid crystal module 2 includes a resin frame 4a, the above-described components (not shown), a light source 4b, and a rear frame 5.

Here, in this embodiment, as shown in FIG. 4, a circuit board 7 having a function of supplying power to the entire apparatus and signal processing are provided on the rear surface (surface on the arrow Y2 direction side) of the metal rear frame 5. The circuit boards 8 for performing the above are mounted side by side at a predetermined interval in the X direction. Specifically, as shown in FIG. 5, the rear surface of the rear frame 5 is provided in the central portion, and is provided so as to surround the board mounting area 51 and the board mounting area 51 to which the two circuit boards 7 and 8 are mounted. And a non-board mounting region 52 formed. The non-board mounting region 52 is an example of the “exposed portion” and “convex portion” in the present invention.

  As shown in FIG. 4, a plurality of board mounting screw holes 5 a for mounting each of the two circuit boards 7 and 8 are formed on the rear surface of the rear frame 5. A screw insertion hole 7a for inserting a screw 9 is formed in the outer edge portion of the circuit board 7, and a screw insertion hole 8a for inserting the screw 9 is formed in the outer edge portion of the circuit board 8. Is formed. Each of the two circuit boards 7 and 8 includes a plurality of screws 9 (see FIGS. 4 and 5) of the rear frame 5 through the screw insertion holes 7 a of the circuit board 7 and the screw insertion holes 8 a of the circuit board 8. It is fixed to the rear frame 5 by being attached to the plurality of board mounting screw holes 5a. A plurality of screw insertion holes 5b are formed on the rear surface of the rear frame 5 along the outer edge portion. By attaching a screw 9 (see FIG. 4) to each of the plurality of screw insertion holes 5b, the rear frame 5 is attached to the front housing 1 (see FIG. 4). A plurality of cover member mounting screw holes 5 c for mounting the cover member 6 are formed on the rear surface of the rear frame 5.

  Also, one resin cover member 6 is attached to the rear surface (surface on the arrow Y2 direction side) of the rear frame 5 to which the two circuit boards 7 and 8 are attached. Further, in the present embodiment, as shown in FIGS. 5 and 6, the cover member 6 covers the board attachment region 51 to which the two circuit boards 7 and 8 are attached from the rear (arrow Y2 direction) side, and the rear. It arrange | positions so that the non-board | substrate attachment area | region 52 (area | regions other than the board | substrate attachment area | region 51) of the rear surface (arrow Y2 direction) of the flame | frame 5 may be exposed. Specifically, as shown in FIG. 3, the cover member 6 is arranged so that the non-board mounting areas 52 surrounding the left and right and upper edges of the board mounting area 51 of the rear frame 5 are exposed. It should be noted that the non-substrate mounting region 52 is not provided on the lower edge side (arrow Z2 direction side) of the substrate mounting region 51 of the rear frame 5. That is, the non-board mounting region 52 of the rear frame 5 exposed from the cover member 6 has an inverted U shape.

  Further, the rear case of the liquid crystal television device 100 is constituted by the non-substrate mounting region 52 exposed from the cover member 6 of the metal rear frame 5. That is, in the present embodiment, the portion exposed from the cover member 6 of the metal rear frame 5 constituting the liquid crystal module 2 is also used as the rear housing. In other words, in the present embodiment, the rear housing is configured by the non-board mounting region 52 of the metal rear frame 5 and the cover member 6. In addition, the exposed non-board mounting area 52 of the rear frame 5 is configured to function as a heat radiating section that radiates heat generated from the circuit boards 7 and 8 mounted in the board mounting area 51 to the outside.

  As shown in FIG. 6, the cover member 6 has a plurality of screw insertion holes 6a and 61a. The resin cover member 6 is attached to the metal rear frame 5 by attaching the screw 9 to each of the plurality of screw insertion holes 6a and 61a. Specifically, as shown in FIG. 4, the cover member 6 is configured such that the screw 9 is attached to the cover member mounting screw hole 5 c of the rear frame 5 through the screw insertion hole 6 a of the cover member 6. 5 is fixed. The screw 9 inserted into the screw insertion hole 61 a formed at the upper left of the cover member 6 is connected to the board formed at the upper left of the rear frame 5 through the screw insertion hole 7 a formed at the upper left of the circuit board 7. It is attached to the mounting screw hole 5a.

  The cover member mounting screw hole 5c formed on the rear surface of the rear frame 5 is covered with the screw 9 so that the speaker mounting member 10 is sandwiched in the cover member mounting screw hole 5c formed below. A member 6 is attached. Two speakers 11 are attached to the speaker attachment member 10. The cover member 6 is attached so as to cover the two circuit boards 7 and 8 and the speaker attachment member 10 to which the two speakers 11 are attached from the rear.

  Also, as shown in FIG. 5, the signal processing circuit board 8 arranged on the arrow X1 direction side of the two circuit boards 7 and 8 attached to the rear frame 5 is connected to the external connection terminals 12a and 12b. And a receiving unit (tuner) 13 capable of receiving a television broadcast connected to the external connection terminal 12b. As shown in FIG. 7, in the liquid crystal television apparatus 100, the receiving unit 13 is connected to the liquid crystal module 2 and the speaker 11, and a television broadcast signal (video signal and audio signal) received by the antenna 200. Among them, the video signal is output to the liquid crystal module 2 and the audio signal is output to the speaker 11. As shown in FIG. 2, the external connection terminal 12 a is provided on the circuit board 8 so as to protrude from the circuit board 8 to the rear surface (arrow Y2 direction side), and the external connection terminal 12 b is connected to the circuit board 8. Is provided on the circuit board 8 so as to protrude from the side to the side (arrow X1 direction side).

  Also, as shown in FIG. 6, on the rear surface of the cover member 6, there are six openings 6b having a round hole shape for exposing the external connection terminals 12a provided on the circuit board 8 rearward (in the direction of arrow Y2). Is provided. In addition, as shown in FIG. 2, the six external connection terminals 12a provided on the circuit board 8 are connected to electronic devices or the like provided outside through the six openings 6b of the cover member 6, respectively. It can be connected to wiring. The cover member 6 has an opening 6c for exposing the external connection terminal 12b provided on the circuit board 8 to the side (arrow X1 direction). The opening 6c has a rectangular shape extending in the vertical direction (Z direction) when viewed from the side (X direction).

  Further, as shown in FIG. 8, the cover member 6 has a recess 6 d that houses the two circuit boards 7 and 8 attached to the board attachment region 51 on the rear surface of the rear frame 5. Further, the recess 6d of the cover member 6 has a shape that is recessed backward (in the direction of arrow Y2). The two circuit boards 7 and 8 are housed in the recess 6 d of the cover member 6 and are covered with the cover member 6 in a state of being separated from the inner surface of the cover member 6.

As shown in FIGS. 8 and 9, the substrate mounting region 51 on the rear surface of the rear frame 5 has a concave portion 5 d formed in a concave shape as a whole. Moreover, it attaches to the recessed part 5d of the rear frame 5 so that the edge part 6e of the cover member 6 may fit. The concave portion 5d is an example of the “concave portion” in the present invention.

  Next, with reference to FIG. 10 and FIG. 11, the case where the cover member 6 of one size is attached to the rear frames 5 and 105 of different sizes will be described.

  As shown in FIGS. 10 and 11, the cover member 6 having one size (the same size) is configured to be attachable to the rear frames 5 and 105 having different sizes. For example, when the liquid crystal television set shown in FIG. 10 is 19-inch (inch) and the liquid-crystal television set shown in FIG. It is possible to attach the cover member 6 whose length is L1 and whose length in the X direction is L2. In this case, the surface area of the non-substrate mounting region of the rear frame of the 22-inch liquid crystal television device is larger than the surface area of the non-substrate mounting region of the 19-inch liquid crystal television device. In addition to attaching the same size cover member 6 to the 19-inch liquid crystal television device and the 22-inch liquid crystal television device, for example, a 26-inch liquid crystal television device, a 32-inch liquid crystal television device, It is also possible to attach a cover member having a size common to the 26 type and the 32 type.

  In the present embodiment, as described above, the board mounting area 51 with the circuit boards 7 and 8 attached to the rear surface is covered from the rear, and the non-board mounting area 52 other than the board mounting area 51 on the rear surface of the rear frame 5 is exposed. The cover member 6 is disposed so that As a result, the circuit boards 7 and 8 attached to the board attachment region 51 of the rear frame 5 can be directly covered with the cover member 6, so that it is not necessary to separately provide a member other than the cover member 6. Can be prevented from increasing. Unlike the case where both the board mounting area 51 and the non-board mounting area 52 of the rear frame 5 are covered by the cover member 6, the heat generated from the circuit boards 7 and 8 is exposed to the non-board mounting where the rear frame 5 is exposed. Heat can be efficiently radiated from the region 52 to the outside. Further, even when the rear housing 5 is configured by the exposed non-board mounting area 52 of the rear frame 5, the cover member 6 is arranged so as to cover only a part of the rear frame 5 (board mounting area 51). There is no need to provide a separate rear housing.

  In the present embodiment, as described above, the cover member 6 arranged so as to cover the substrate attachment region 51 and expose the non-substrate attachment region 52 exposes the six external connection terminals 12 a of the circuit board 8. By having the opening 6c that exposes the opening 6b and the external connection terminal 12b, the external connection terminals 12a and 12b of the circuit board 8 are connected to the cover member 6 in a state where the circuit boards 7 and 8 are covered with the cover member 6. It can be easily connected to connection wiring such as an electronic device installed outside through the openings 6b and 6c.

  In the present embodiment, as described above, the rear frame 5 constituting the rear housing is made of metal, and the exposed non-board mounting area 52 of the rear frame 5 is attached to the board mounting area 51. By causing the rear frame 5 constituting the rear housing to be more easily transferred by functioning as a heat radiating portion that radiates the heat of the substrates 7 and 8 to the outside, heat is transmitted from the circuit boards 7 and 8. Heat can be dissipated more efficiently from the outside.

  Further, in the present embodiment, as described above, the circuit boards 7 and 8 attached to the board attachment region 51 on the rear surface of the rear frame 5 are covered with the cover member 6 in a state of being housed in the recess 6d of the cover member 6. Thus, even when the circuit boards 7 and 8 are attached to the rear surface of the rear frame 5 so as to protrude rearward, the circuit boards 7 and 8 protruding rearward can be easily accommodated by the recess 6d of the cover member 6. Therefore, the entire circuit boards 7 and 8 can be easily covered with the cover member 6.

  In the present embodiment, as described above, the non-board mounting area 52 is provided on the rear surface of the rear frame 5 so as to surround the board mounting area 51, thereby surrounding the board mounting area 51 of the rear frame 5. Since the area of the exposed region effective for heat dissipation can be increased by the non-substrate mounting region 52 exposed so as to surround the heat, the heat generated from the circuit boards 7 and 8 attached to the substrate mounting region 51 of the rear frame 5 is generated. Can be radiated more effectively.

  Moreover, in this embodiment, the board | substrate attachment area | region 51 of the rear frame 5 is formed in the flat surface shape by attaching the cover member 6 so that it may fit in the concave-shaped board | substrate attachment area | region 51 as mentioned above. Unlike the case, the thickness of the entire liquid crystal television device 100 can be reduced by the amount of the substrate mounting region 51 of the rear frame 5 formed in a concave shape.

  Further, in the present embodiment, as described above, the frame-shaped front housing 1 having the inner peripheral surface portion 1a that covers the periphery of the outer peripheral surface portion 50 in the vicinity of the outer peripheral surface portion 50 of the rear frame 5 that constitutes the rear housing. By providing the front housing 1 and the rear housing (rear frame 5), the inner peripheral surface portion 1a of the front housing 1 is brought close to the outer peripheral surface portion 50 of the rear frame 5 constituting the rear housing. Can be formed into corresponding shapes.

  In the present embodiment, as described above, the speaker 11 is covered by disposing the cover member 6 so as to cover the speaker 11 in addition to the circuit boards 7 and 8 while exposing the non-board mounting region 52. Therefore, it is possible to suppress the increase in the number of parts because it is not necessary to provide a separate member.

  In the present embodiment, as described above, the cover member 6 is attached to the display panel 2 (rear frames 5 and 105) having different sizes (19 type, 22 type, etc.) in a common size (size). It is necessary to form cover members 6 of different sizes (sizes) to be attached to display panels 2 (rear frames 5 and 105) of different sizes (19 types, 22 types, etc.). Therefore, the manufacturing process of the cover member 6 can be simplified accordingly.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the above embodiment, an example in which the present invention is applied to a liquid crystal television device as an example of a display device (television device) has been described, but the present invention is not limited to this. For example, the present invention can be applied to a display device other than a television device, such as a monitor of a personal computer, or a television device other than a liquid crystal television device.

  Moreover, although the example which applies a rear frame as an example of the board | substrate attachment member which attaches the circuit board of this invention was shown in the said embodiment, this invention is not limited to this. For example, as long as it is possible to cover the board attachment region to which the circuit board is attached with a cover member, a board attachment member other than the rear frame is also applicable.

  Moreover, in the said embodiment, although the example using a metal rear frame was shown as an example of the board | substrate attachment member which has the thermal radiation function of this invention, this invention is not limited to this. For example, if it has a heat dissipation function, it can be applied to a rear frame other than metal.

  Moreover, in the said embodiment, although the example using a resin-made cover member was shown as an example of the cover member of this invention, this invention is not limited to this. For example, a metal cover member may be used.

  Moreover, although the example which attaches two circuit boards to the board | substrate attachment area | region of a rear frame was shown in the said embodiment, this invention is not limited to this. For example, one or more circuit boards may be attached to the board attachment area of the rear frame. And it is good to arrange | position a cover member so that the circuit board of 1 or 3 or more numbers attached to the board | substrate attachment area | region of a rear frame may be covered.

1 Front housing 1a Inner peripheral surface (inner peripheral edge)
2 Liquid crystal module (display panel)
5 Rear frame (board mounting member)
6 Cover member 6b, 6c Opening 6d Recess
7, 8 Circuit board 11 Speaker 12a, 12b External connection terminal 13 Receiver 50 Outer peripheral surface (outer peripheral edge)
51 substrate mounting region 52 non-substrate mounting region 100 liquid crystal television device (display device) (television device)

Claims (9)

A metal board mounting member;
A circuit board disposed on one side of the board mounting member;
A cover member disposed only on a part of one side of the board mounting member so as to cover the circuit board;
A display panel disposed on two sides of the substrate mounting member,
Said cover member, said has a recess for accommodating the circuit board, the cross-section of the recess perpendicular predetermined direction to the plane of the display panel that is recessed in a substantially trapezoidal shape, display device. The circuit board has external connection terminals,
The display device according to claim 1, wherein the cover member has an opening that exposes an external connection terminal of the circuit board.   The display device according to claim 1, wherein the board mounting member functions as a heat radiating unit that radiates at least heat of the circuit board to the outside. The one surface comprises an exposed portion exposed to the outside together is provided so as to surround the periphery of the cover member, the display device according to any one of claims 1-3. The substrate mounting member includes a concave portion that is recessed toward the two surfaces,
Said cover member, said attached as writing fits into the concave portion, display device according to any one of claims 1-4. Further comprising a frame-shaped front housing having a peripheral portion in which adjacent to the outer peripheral edge of the substrate mounting member covering the circumference of said outer periphery, the display according to any one of claims 1 to 5 apparatus. A speaker,
The cover member, the are arranged so as in addition to the circuit board to cover also the speaker, display device according to any one of claims 1-6. The cover member is formed such that one side surface in the longitudinal direction of the display panel is substantially perpendicular to the one surface of the substrate mounting member,
The display device according to claim 2, wherein the external connection terminal is disposed so as to be exposed to the outside of the cover member through the opening formed on the one side surface. The substrate mounting member includes a convex portion protruding to the one side in the outer peripheral portion side of the cover member, it has a space to the two-surface side of the convex portion, one of the claims 1-8 The display device according to claim 1.

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