JP2014095858A - Thin display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique that enables a wireless transmission and communication unit for even a thin display device reduced in thickness and bezel width to be appropriately fixed and arranged.SOLUTION: A liquid crystal television set 10 comprises: a display panel 12; a front cabinet 14 that covers the outer edge part of its front side; a rear cabinet 16 that covers the rear side of the display panel 12; and a resin-made ornamental cabinet 30 arranged on the front lower part of the front cabinet 14. In the ornamental cabinet 30, a unit arrangement part that extends, in the vicinities of both ends of a fin part 40, from outside to inside of the display panel 12 in an upward direction as shown in the drawing. A wireless transmission and communication unit 20 is arranged in a fixed part 50 disposed in the unit arrangement part 46.

Description

  The present invention relates to a thin display device, and more particularly to a thin display device including a wireless transmission communication unit such as Bluetooth (registered trademark) or a wireless LAN.

  FIG. 1 generally shows a conventional type liquid crystal television 510 provided with a wireless transmission communication unit 520 such as a wireless LAN or Bluetooth (registered trademark). Here, a perspective view of a partial cross section is shown.

  As illustrated, the liquid crystal television 510 includes a display panel 512 that is sandwiched between a front cabinet 514 and a back cabinet 516. In addition, a resin frame (decoration cabinet) 530 is disposed at the lower part of the front cabinet. A wireless transmission communication unit 520 is disposed inside the decoration cabinet 530.

  In general, the circuit component (substrate) of the liquid crystal television 510 is mounted on a metal backlight chassis 518 that covers the backlight on the back of the screen. This is because a sufficient mounting area can be secured in the backlight chassis 518, and a ground plane can be formed on the metal surface to easily match the ground level on the substrate. However, in the case of the wireless transmission communication unit 520 that radiates radio waves to the liquid crystal television 510, the radio waves radiated from the ground plane (the metal surface of the backlight chassis 518) are reflected with respect to the radio waves radiated from the wireless transmission communication unit 520. It is known to interfere. Therefore, it is desirable that the wireless transmission communication unit 520 and the ground plane (backlight chassis 518) be separated by an appropriate distance. Therefore, as described above, in the conventional liquid crystal television 510, the wireless transmission communication unit 520 is housed in the resin decoration cabinet 530 around the display panel 512.

  In a thin display device such as a liquid crystal television, various techniques have been proposed for attaching an electric substrate or the like to a resin member. For example, there is a thin display device using a resin chassis base that can correspond to a plurality of components and components of a plurality of sizes by providing a set of a plurality of mounting holes (see, for example, Patent Document 1). Specifically, it is a resin chassis base that fixes an electric board and is attached to a component disposed inside an electric device, and a plurality of sets for screwing to a plurality of components and / or components of a plurality of sizes. A mounting hole is opened. The resin chassis base is screwed by using any one of the mounting holes of the resin chassis base.

JP 2012-177857 A

  By the way, in recent years, thin display devices such as liquid crystal display devices have a tendency to become narrower as the size and thickness thereof are reduced. Therefore, securing a space for arranging the wireless transmission communication unit 520 has been a problem. That is, it has been a problem to secure a mounting space where the wireless transmission communication unit 520 can exhibit the desired wireless transmission performance. In the technique disclosed in Patent Document 1, a resin chassis base is used. However, since it is necessary to prepare a large-sized separate part, a display device that has been thinned cannot sufficiently cope with it. Technology was sought.

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

The present invention is a thin display device including a wireless transmission communication unit, which is a display panel, a decorative cabinet that is resin-molded and attached to a front cabinet that covers the display panel, and a back cabinet that covers the back side of the display panel. The decorative cabinet includes an internal arrangement portion extending in a region sandwiched between the back surface of the display panel and the back cabinet, and the internal arrangement portion is a communication unit fixing portion to which the wireless transmission communication unit is attached. Have
Further, the wireless transmission communication unit attached to the communication unit fixing portion may be separated from the metal member attached to the back surface of the display panel or the back surface of the display panel by 12 mm or more.
In addition, a plurality of the wireless transmission communication units may be provided, and the plurality of communication unit fixing portions that fix the plurality of wireless transmission communication units may be formed at a predetermined distance in the width direction of the display panel.
The present invention is a thin display device including a wireless transmission communication unit, a resin-made column cover that covers a column unit that supports a display unit body, and a communication that is provided integrally with the column cover and attaches the wireless transmission communication unit A unit fixing portion.

  ADVANTAGE OF THE INVENTION According to this invention, the mounting structure technique of the radio | wireless transmission communication unit of the state which ensured the radio | wireless transmission performance as desired in a thin-type display apparatus can be provided.

It is a partial cross section perspective view of the liquid crystal television based on a prior art. It is the disassembled perspective view seen from the back surface of the liquid crystal television based on 1st Embodiment. 1 is a layout view of a liquid crystal television according to a first embodiment. It is the perspective view which expanded and showed a part of decoration cabinet paying attention to the unit arrangement | positioning part 46 of the left side of FIG. 2 based on 1st Embodiment. It is the perspective view which expanded and showed the unit arrangement | positioning part based on 1st Embodiment. It is a partial cross section perspective view of the decoration cabinet of the part in which the unit arrangement | positioning part is formed based on 1st Embodiment. It is the figure which expanded and showed the unit arrangement | positioning part of the decoration cabinet based on 1st Embodiment. It is sectional drawing of the part of the unit arrangement | positioning part based on 1st Embodiment. It is the graph which showed the simulation result which verified how the distance of the radio transmission communication unit and a backlight chassis should be set based on 1st Embodiment. It is a disassembled perspective view of the liquid crystal television based on 2nd Embodiment. It is a perspective view which shows the support | pillar cover and backlight chassis based on 2nd Embodiment. It is a perspective view which shows the support | pillar cover attached to the back surface of the front cabinet based on 2nd Embodiment. It is a figure which shows the support | pillar cover based on 2nd Embodiment.

  Next, modes for carrying out the present invention (hereinafter, simply referred to as “embodiments”) will be specifically described with reference to the drawings.

<First Embodiment>
The outline is as follows.
(1) A wireless transmission communication unit that cannot be placed in the lower part of the front due to the narrower frame is extended and deployed along the bottom of the display cabinet, along with the chassis on the back of the display panel (the backlight chassis for LCD TVs). To do.
(2) The wireless transmission communication unit is arranged at the tip of the fin (unit arrangement parts 46 and 47 described later).
(3) The wireless transmission communication unit secures a predetermined distance from the metal object so that radio wave reflection and interference do not occur. Specifically, the distance is about 12 mm or more.
By adopting such a structure, a dedicated component for fixing the wireless transmission communication unit is unnecessary, and cost reduction can be realized. Moreover, although it is the backlight chassis back surface arrangement | positioning, it can insulate from a surrounding metal object by fixing a wireless transmission communication unit to the fin part (resin property) of the extended decoration cabinet. At the same time, the electromagnetic wave is reflected on the metal, so that the influence can be suppressed. A wireless transmission communication unit can be attached regardless of the external size.

Details will be described below.
FIG. 2 is an exploded perspective view of the liquid crystal television 10 according to this embodiment viewed from the back. Here, a stand portion such as a support is omitted. FIG. 3 is a rear view of the liquid crystal television 10 and shows the back surface (backlight chassis 18) of the display panel 12 exposed.

  As shown in the figure, the liquid crystal television 10 includes a display panel 12, a front cabinet 14 that covers an outer edge portion on the front side thereof, a back cabinet 16 that covers the rear side of the display panel 12, and a lower front portion of the front cabinet 14. The display cabinet 30 is arranged.

  The decoration cabinet 30 is a resin-molded member, and extends and develops over the entire width direction of the liquid crystal television 10. In addition, the decoration cabinet 30 includes a decoration portion main body 32 exposed to the outside, and a fin portion 40 that is disposed between the backlight chassis 18 of the display panel 12 and the back cabinet 16 and is hidden inside.

  Although details will be described later, for example, as shown in FIG. 3, unit arrangement portions 46 and 47 extending in the upward direction from the outside of the display panel 12 toward the inside are formed in the vicinity of both ends of the fin portion 40. The wireless transmission communication unit 20 of Bluetooth (registered trademark) is arranged in the fixing unit 50 provided in the unit arrangement unit 46 on the left side of the figure. In addition, the wireless LAN wireless transmission communication unit 21 is disposed in the fixing unit 48 provided in the right unit disposition unit 47. It should be noted that the distance between the two wireless transmission communication units 20 and 21, that is, the distance between the left and right unit arrangement portions 46 and 47, is secured sufficiently to prevent interference.

  FIG. 4 is an enlarged perspective view showing a part of the decorative cabinet 30 while paying attention to the unit arrangement portion 46 on the left side of FIG. FIG. 5 is an enlarged perspective view of the unit arrangement portion 46. FIG. 6 is a partial cross-sectional perspective view of the decorative cabinet 30 at a portion where the unit arrangement portion 46 is formed. 7 is an enlarged view of the unit arrangement portion 46 of the decoration cabinet 30. FIG. 7 (a) is a side view, FIG. 7 (b) is a perspective view, and FIG. 7 (c) is a plan view. Is shown. Further, FIG. 8 is a cross-sectional view of the unit arrangement portion 46 portion.

  As shown in the figure, the decorative cabinet 30 includes a decorative portion main body 32 exposed to the outside, and a fin portion 40 disposed inside for fixing and the like.

  The fin portion 40 is configured by integrally including a fin portion main body 42, a bent portion 44, and a unit arrangement portion 46. The fin part main body 42 has a general configuration, is formed in a plate shape with a predetermined thickness over the width direction, and is used for fixing the decoration cabinet 30 or the like.

  Near the end portion of the fin portion main body 42, a unit arrangement portion 46 is formed in a state of being lowered one step through the bent portion 44, that is, in a state of approaching the backlight chassis 18. Depending on the height of the bent portion 44, the distance between the backlight chassis 18 and the unit placement portion 46 and the separated state from the back cabinet 16 are set.

  A unit fixing portion 50 extending toward the back cabinet 16 is formed in the unit arrangement portion 46. The wireless transmission communication unit 20 is attached to the unit fixing unit 50. Specifically, first to fifth fixing ribs 51 to 55 that extend vertically from the plane of the unit arrangement portion 46 toward the back cabinet 16 side are formed as the unit fixing portion 50. A predetermined one of the first to fifth fixing ribs 51 to 55 (for example, the fourth and fifth fixing ribs 54 and 55) is formed in a claw shape so that the wireless transmission communication unit 20 can be appropriately fixed and held. It has become.

  The dimensions of various components are set in consideration of the position where the unit placement portion 46 is formed (the height of the bent portion 44), the height of the unit fixing portion 50, and the thickness of the wireless transmission communication unit 20. . Finally, the shortest distance between the wireless transmission communication unit 20 and the backlight chassis 18 is 12 mm or more.

  FIG. 9 is a graph showing a simulation result verifying how the distance between the wireless transmission communication unit 20 and the backlight chassis 18 should be set. Here, the relationship between the distance between the wireless LAN unit and the backlight chassis and the transmission speed is shown. Similar results have been obtained for Bluetooth. As shown in the figure, when the required value is 50 Mbps, a distance of 12 mm or more is required.

  As described above, according to the present embodiment, a dedicated component for fixing the wireless transmission communication unit 20 is unnecessary, and cost reduction can be realized. Further, by fixing the wireless transmission communication unit 20 to the fin portion 40 of the extended resin decorative cabinet 30, it is possible to insulate from surrounding metal objects.

  Note that a radio wave reflection member that is electrically insulated from the backlight chassis 18 that is the ground plane may be disposed in the vicinity of the unit fixing unit 50 to control the propagation direction of the radio wave. For example, a metal plate formed in a desired shape as the radio wave reflecting member may be used, or a conductive paint or the like may be applied to a resin member, and a metal tape may be attached in the vicinity of the unit fixing portion 50. May be.

<Second Embodiment>
The outline of the present embodiment is as follows. That is, the unit arrangement portion is provided to extend on the side surface of the resin cover of the stand column (metal) of the liquid crystal television, and is arranged along the BL chassis on the rear surface of the housing. The unit fixing part 150 to which the wireless transmission communication unit 120 is fixed is formed in a space in which the unit arrangement part takes into account radio wave interference and the like. For this reason, it is not necessary to separately provide components for fixing the wireless transmission communication unit.

  FIG. 10 is an exploded perspective view of the liquid crystal television 110 according to the present embodiment. FIG. 11 is a perspective view showing the column cover 140 and the backlight chassis 118 of the liquid crystal television 10. Further, FIG. 12 is a perspective view showing a column cover 140 attached to the back surface of the front cabinet 114. Furthermore, FIG. 13 is a view showing a support column, in which FIG. 13 (a) is a perspective view, FIG. 13 (b) is a plan view, and FIG. 13 (c) is a side view.

  As shown in the figure, the liquid crystal television 110 includes a display panel 112 covered with a front cabinet 114 and a back cabinet 116, and a stunt unit 130 provided below the display panel 12.

  The backlight chassis 118 is provided with two reinforcing angles 119 vertically at a predetermined interval. A metal stand column 134 is provided at the lower portion of the reinforcing angle 119. Further, on the lower side, a resin post cover 140 is screwed to a fixing boss 113 provided on the front cabinet 114 with a fixing opening 148. The column main body 132 is attached to the stand column 134 and the column cover 140. At this time, the cover main body upper surface portion 141 of the column cover 140 is covered with the column main body portion 132, but the cover side surface portion 142 is exposed.

  A plate-like unit arrangement portion 150 is formed to extend in the lateral direction (left direction in the drawing) from the bottom side (backlight chassis 118 side) end of the cover side surface portion 142.

  In the unit arrangement portion 150, four fixing ribs 151 are vertically formed at a predetermined height toward the back cabinet 116. When the wireless transmission communication unit 120 is fixed to the fixing rib 151, it is separated from surrounding metal members, particularly the backlight chassis 118 and the column main body 132 of the display panel 112 by 12 mm or more.

  By adopting such a configuration, the wireless transmission communication unit 120 can be appropriately fixed and arranged even in the thin and narrow liquid crystal television 110 as in the first embodiment. Furthermore, the cost can be reduced as compared with the conventional type in which dedicated parts are separately provided.

  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.

10, 110 LCD TV 12, 112 Display panel 14, 114 Front cabinet 16, 116 Back cabinet 18, 118 Backlight chassis 20, 120 Wireless transmission communication unit 21 Wireless transmission communication unit 30 Decoration cabinet 32 Decoration part main body 40 Fin part 42 Fin Main part 44 Bending part 46 Unit arrangement part 47 Unit arrangement part 48 Fixing part 50 Unit fixing parts 51-55 First to fifth fixing ribs 113 Fixing boss 119 Reinforcement angle 130 Stunt part 132 Supporting body part 134 Standing support part 140 Post cover 141 Cover main body upper surface 142 Cover side surface 148 Fixing opening 150 Unit placement portion 151 Fixing rib

Claims (4)

A thin display device comprising a wireless transmission communication unit,
A display panel;
A decorative cabinet that is resin molded and attached to a front cabinet that covers the display panel;
A back cabinet covering the back side of the display panel;
Have
The decorative cabinet includes an internal arrangement portion extending to a region sandwiched between the back surface of the display panel and the back cabinet,
The thin display device, wherein the internal arrangement unit includes a communication unit fixing unit to which the wireless transmission communication unit is attached.
2. The wireless transmission communication unit attached to the communication unit fixing portion is separated from a metal member attached to the back surface of the display panel or the back surface of the display panel by 12 mm or more. Thin display device.
A plurality of the wireless transmission communication units are provided,
The thin display device according to claim 1, wherein the plurality of communication unit fixing portions that fix the plurality of wireless transmission communication units are formed at a predetermined distance in the width direction of the display panel. .
A thin display device comprising a wireless transmission communication unit,
Resin support cover that covers the support that supports the display unit body,
A thin display device comprising: a communication unit fixing portion that is provided integrally with the support column cover and to which the wireless transmission communication unit is attached.

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