JP5735994B2 - Thin display device - Google Patents

Description

  The present invention relates to a thin display device including a speaker.

  Narrow frame models are becoming mainstream in recent flat-screen TVs, and the tendency is particularly strong in the advanced grades. Therefore, there is a demand for a structure in which functional parts can be arranged without widening the frame of the front cabinet.

  One of the functional components to be considered as such a structure is a speaker (speaker unit), and a technique for preventing an increase in the frame size due to the mounting of the speaker unit or the like is necessary to realize a narrow frame. . In addition, since the speaker unit is thinned, there is a risk of insufficient strength. In addition, because the speaker unit is placed under the display unit, users often lift the TV from under the speaker unit, and it is necessary to take strength measures to prevent deformation between the speaker unit and the display unit. Met.

  As such a countermeasure technique, for example, a corner portion between a boss projecting at a crossing point of a plurality of rows of grid-like ribs provided in a portion supporting a cathode ray tube in a cabinet and a rib on a side in contact with the cathode ray tube falls. There is a technique for providing a reinforcing structure for a video apparatus and a reinforcing structure for a cabinet that can prevent cracks and breaks from being caused by an impact such as, and can improve the strength of the corner portion (see, for example, Patent Document 1). .

JP 2003-230075 A

  By the way, in the technique disclosed in Patent Document 1, in the television set, the portion of the cabinet relating to the front portion can be reinforced with ribs. However, it is possible to increase the strength by arranging ribs around the front of the display unit, but the strength between the speaker unit at the lower part of the front and the display unit is insufficient and another technique was required. .

  This invention is made | formed in view of the above situations, Comprising: It aims at providing the technique which solves the said subject.

The thin display device of the present invention includes a frame on the outer peripheral portion of the display panel, a bottom cover disposed so as to cover a lower portion of the display panel, and attached to the bottom cover. A speaker disposed; an opening formed in a lower portion of the frame; and a rib formed in the bottom cover and inserted into the opening. The bottom cover is provided on a lower side of the display panel. The exposed portion includes a bulging portion that bulges downward in a substantially central portion in the left-right direction, and the rib is inserted into the opening in a region other than the bulging portion .
Further, the rib has a flat rib, and an auxiliary rib formed in a convex shape at the base portion of the flat ribs, the sum of the height of the thickness and the auxiliary ribs of the flat ribs, said It may be set substantially equal to the height of the opening .

  According to the present invention, in a thin display device including a speaker, strength enhancement between a speaker unit at the lower front and a display unit can be realized.

It is a perspective view of the back surface of the liquid crystal television based on embodiment of this invention. It is a rear view of the liquid crystal television based on embodiment of this invention. It is a perspective view which isolate | separates and shows a backlight chassis and a bottom cover about the back surface of the liquid crystal television based on embodiment of this invention. It is a partial expansion perspective view of the backlight chassis of the liquid crystal television based on embodiment of this invention. It is a perspective view of the bottom cover based on embodiment of this invention. It is a partially expanded view of the bottom cover according to the embodiment of the present invention. It is the attachment structure of the bottom cover based on embodiment of this invention, Comprising: It is a figure which expands and shows area | region A1 of FIG. It is sectional drawing which shows the connection structure of the cover rib of a bottom cover and the bottom cover attachment opening part of an aluminum frame based on embodiment of this invention. It is a figure which shows typically the connection structure of the cover rib of a bottom cover and the bottom cover attachment opening part of an aluminum frame based on embodiment of this invention.

  Next, modes for carrying out the present invention (hereinafter, simply referred to as “embodiments”) will be specifically described with reference to the drawings. In the present embodiment, the liquid crystal television 10 is exemplified as the display device, but the present invention can be applied to a thin display device such as an organic EL television.

  FIG. 1 is a perspective view of the back surface of the liquid crystal television 10 according to the present embodiment, and FIG. 2 is a rear view of the liquid crystal television 10. In FIGS. 1 and 2, the rear cover 19 (see FIG. 8) is removed and the internal structure can be recognized. As shown in the drawing, the backlight chassis 12 is exposed on the back surface of the liquid crystal television 10 with the rear cover 19 removed, and two reinforcing angles 13 are arranged in the vertical direction.

  The perspective view of FIG. 3 shows the backlight chassis 12 and the bottom cover 20 separated from each other on the back surface of the liquid crystal television 10. In the liquid crystal television 10, an SP boss 30 for attaching the speaker unit 50 to the bottom cover 20 that also serves as an external component is provided. Further, as shown in FIGS. 1 and 2, a speaker unit 50 is disposed on the backlight chassis 12 (on the back side). By adopting such a configuration, a narrow frame of the liquid crystal television 10 is realized.

  FIG. 4 shows an area in the lower right portion of the back surface of the backlight chassis 12 (area corresponding to the area A1 in FIG. 1 and the area B1 in FIG. 2). The backlight chassis 12 includes an aluminum frame 14 as an outer frame structure of the display panel 11. A bottom cover mounting opening 70 for mounting the bottom cover 20 from the back side is provided in the lower region of the aluminum frame 14.

  The bottom cover mounting openings 70 have a rectangular shape whose longitudinal direction is the left-right direction, and a total of four are formed side by side on the left and right sides of the aluminum frame 14. A cover rib 40 of the bottom cover 20 described later is inserted into the bottom cover mounting opening 70. That is, the shape of the bottom cover attachment opening 70 is set to a shape that matches the shape of the cover rib 40.

  5 is a perspective view of the bottom cover 20, FIG. 5 (a) is a perspective view seen from the back side, and FIG. 5 (b) is a perspective view seen from the front side (display panel 11 side). . 6 is a view showing a portion corresponding to the region D1 in FIG. 5A, FIG. 6A is a plan view (top view), and FIG. 6B is a view from the rear view. FIG. 6C is a side view.

  The bottom cover 20 is a left and right resin molded part that is attached to the lower portion of the display panel 11, and includes a decorative exposed portion 21 that is partially exposed from the lower side of the display panel 11 in a front view, and a decorative exposed portion 21. A bottom base portion 22 hidden behind the display panel 11 is integrally formed.

  The bottom base portion 22 is formed on the upper side of the decorative exposed portion 21, and is further provided with a board attaching portion 26 for fixing the circuit board 27 and the like at predetermined two positions on the upper side of the bottom base portion 22. Yes. The board attaching portion 26 is formed one step lower on the back side, and is formed so as to be at the position of the heat radiating plate 18 when attached to the backlight chassis 12 as shown in FIGS. 1 and 2. .

  Further, the bottom base portion 22 is provided with an SP boss 30 for attaching the speaker unit 50. The SP bosses 30 are one set each, and one set is provided in each of the left and right regions, and is screwed to an SP fixing portion 53 of the speaker unit 50 described later. More specifically, for example, as shown in the right side area of the rear view of FIG. 6, one set of SP bosses 30 is located slightly outside in the left-right direction substantially from the position where the board mounting portion 26 is formed, In addition, it is formed with a predetermined length vertically from the bottom base portion 22 in the back direction.

  In addition, a plurality of cover ribs 40 extending to the front side for attaching the bottom cover 20 to the backlight chassis 12 (aluminum frame 14) are formed at the boundary portion between the decorative exposed portion 21 and the bottom base portion 22, As described above, it is inserted and fitted into the bottom cover mounting opening 70.

  More specifically, the cover rib 40 includes a horizontal plate-like flat plate rib 41 and a plurality of convex reinforcing ribs 42 provided on the upper side of the base portion of the flat plate rib 41. The length of the reinforcing rib 42 is shorter than the length of the flat plate rib 41, and is formed to reach, for example, about 1/4 to 1/2 of the depth of the bottom cover mounting opening 70 when the cover rib 40 is inserted. Has been.

  The width of the flat rib 41 is set corresponding to the width of the bottom cover mounting opening 70 into which the cover rib 40 is inserted, and is set to a slightly shorter dimension. Further, the sum of the thickness of the flat rib 41 and the height of the reinforcing rib 42 is set corresponding to the height of the bottom cover attachment opening 70, and is set to a slightly shorter dimension as described above. In the present embodiment, the reinforcing rib 42 is provided only on the upper surface of the flat plate rib 41, but may be provided on the lower surface.

  In addition, a bulging portion 28 that slightly bulges downward is formed at the left and right central portions of the decorative exposed portion 21. A remote control light-receiving part or the like is attached to the bulging part 28. In the decorative exposed portion 21, the left and right regions other than the bulging portion 28 are substantially equal in width in the vertical direction, and there is no space for attaching components or the like on the rear surface.

  The attachment state of the bottom cover 20 and the backlight chassis 12 (aluminum frame 14) shown in FIG. 7 is shown. FIG. 8 is a cross-sectional side view of the bottom cover 20 and the backlight chassis 12 (aluminum frame 14) attached to each other. Further, FIG. 9 schematically shows a procedure for inserting and fitting the cover rib 40 into the bottom cover attachment opening 70 of the aluminum frame 14.

  The cover rib 40 is inserted into the bottom cover mounting opening 70, and the speaker unit 50 is arranged and the screw 81 is fastened so that the fixing hole 54 and the hole of the SP boss 30 coincide with each other. The unit 50 is fixed.

  As illustrated, in the bottom cover 20, the bottom base portion 22 that fixes the speaker unit 50 is disposed so as to be the back surface of the display portion 11 (backlight chassis 12). Further, the rear cover 19 (rear cabinet) is provided so as to swell rearward in the region where the speaker unit 50 is arranged and to cover the speaker unit 51 (sound generator), that is, completely cover the speaker unit 50. Yes. Further, in the rear cover 19, an audio output opening 19 a is formed in a region on the output front side of the speaker body 51.

  Here, the fitting position between the cover rib 40 and the bottom cover mounting opening 70 is out of the region of the bulging portion 28. Therefore, when a user or the like grasps the liquid crystal television 10 for installation / transportation, the position avoiding the bulging portion 28, that is, the fitting position of the cover rib 40 and the bottom cover mounting opening 70 or a position in the vicinity thereof. I will grab it. Therefore, the bottom cover 20 and the like do not come off as the user grips and works.

  In particular, when gripping work, a force in the rotational direction may be applied to the gripped position depending on how the user applies the force. In this case, if the bottom cover 20 is fixed at a position away from the gripped position, a large rotational moment is applied at the gripped position, and there is a possibility that even a slight force may come off.

  However, in the present embodiment, as described above, the bottom cover 20 is fixed at or near the position to be gripped, and further, the reinforcing rib 42 is used in the vertical position at the fitting position in the bottom cover mounting opening 70. Positioning is done securely. Therefore, it is possible to effectively prevent the bottom cover 20 from being removed.

  The present invention has been described based on the embodiments. This embodiment is an exemplification, and it is understood by those skilled in the art that various modifications can be made to combinations of the respective components and the like, and such modifications are within the scope of the present invention. For example, the aluminum frame 14 is used as the frame of the display panel 11. However, for example, a metal frame made of steel or the like may be used. May be.

10 LCD TV 11 Display Panel 12 Backlight Chassis 14 Aluminum Frame 19 Rear Cover (Rear Cabinet)
20 Bottom cover 21 Decoration exposed portion 22 Bottom base portion 30 SP boss 40 Cover rib 41 Flat plate rib 42 Reinforcement rib 50 Speaker unit 51 Speaker body 53 SP fixing portion 54 Fixing hole 70 Bottom cover mounting opening

Claims (2)

A frame around the outer periphery of the display panel;
A bottom cover arranged to cover a lower portion of the display panel;
A speaker attached to the bottom cover and disposed in an area on the back of the display panel;
An opening formed in a lower portion of the frame;
A rib formed on the bottom cover and inserted into the opening ;
The bottom cover includes a bulging portion that bulges downward in a substantially central portion in the left-right direction at a portion exposed below the display panel, and the rib is inserted into the opening in a region other than the bulging portion. A thin display device characterized by that. The rib includes a flat rib and an auxiliary rib formed in a convex shape at a base portion of the flat rib,
Thin display device of claim 1, the sum of the height of the thickness and the auxiliary ribs of the flat ribs, characterized in that it is substantially equal to the height of the opening.

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