JP2006319531A - Liquid crystal television and antidim structure of video monitor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remove blur on the surface of a protection panel effectively while shortening the time required for removing the blur and to sustain antidim effect on the surface of a protection panel. <P>SOLUTION: As the antidim structure of a liquid crystal television 1 installed in a bath room, a panel 4 for protecting the liquid crystal screen 21 of a liquid crystal body 2 from the front side is fixed to the recess 13 of a front cabinet 11. On the rear surface of the protection panel, a heating wire 5 for removing blur on the front face of the protection panel is divided into two systems, i.e. a first heating wire 51 spread around while being bent in hook by about 90° at a predetermined interval in a first region at the left and upper fringes on the rear surface of the protection panel located on the outside of the frame of the liquid crystal screen, and a second heating wire 52 spread around while being bent in hook by about 90° at a predetermined interval in a second region at the right and lower fringes on the rear surface of the protection panel located on the outside of the frame of the liquid crystal screen. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an anti-fogging structure for a liquid crystal television set and a video monitor installed in a humid place such as a bathroom.

  In general, a protective panel for protecting the image surface is attached to the surface of the image surface of a liquid crystal television or video monitor installed in a humid place such as a bathroom.

  However, since the surface of such a protective panel is clouded by steam from a bathtub or shower, the image surface is very difficult to see. Therefore, in order to remove the cloudy state of the protective panel surface, the surface of the protective panel has to be wiped with a towel or the like.

Therefore, conventionally, an antifogging layer made of a hydrophilic substance is adhered to the surface side of the image surface of a liquid crystal television and a video monitor via an adhesive layer, and the antifogging layer is directed to the surface side of the antifogging layer. A surface protective layer having air permeability is attached, and water droplets of water vapor adhering to the surface protective layer are passed through the antifogging layer from the surface protective layer to be sequentially adsorbed and absorbed by the hydrophilic substance of the antifogging layer. Is known to remove the fogging of the surface protective layer.
Japanese Patent Laid-Open No. 10-42225

  However, in the conventional anti-fogging structure, water droplets of water vapor adhering to a protective panel such as a surface protective layer are passed through the anti-fogging layer and adsorbed and absorbed by the hydrophilic substance. There is a limit to depending on the adsorption / absorption action of the substance, and when the adsorption / absorption action of the hydrophilic substance reaches a saturated state, not only does the removal speed of the fogging of the protective panel surface stagnate, but also the fogging itself is effective. Moreover, the anti-fogging effect on the surface of the protective panel cannot be maintained.

  The present invention has been made in view of such points, and the object of the present invention is to shorten the time for removing the fog on the surface of the protective panel and to effectively remove the fog itself. An object of the present invention is to provide an antifogging structure for a liquid crystal television and a video monitor capable of maintaining the antifogging effect on the surface.

  In order to achieve the above object, in the present invention, as an anti-fogging structure for a liquid crystal television and a video monitor installed in a humid place such as a bathroom, the image surface is protected on the surface side of the image surface of the liquid crystal television and the video monitor. A protective panel is installed. And the heating wire which removes the cloudiness adhering to the surface of the protection panel is stretched around the back surface of the protection panel.

  Due to this specific matter, since the LCD TV and video monitor are installed in the bathroom etc., the water droplets of water vapor attached to the surface of the protection panel generated by steam from the bathtub and shower are heated from the back side by heating wires. When the surface of the protective panel is heated, it is quickly removed, and the fogging of the surface of the protective panel can be effectively removed and the antifogging effect of the surface of the protective panel can be maintained.

  In particular, the following configurations are listed as specifying the layout of the heating wire.

  That is, the heating wire is stretched only around the periphery of the back surface of the protective panel located outside the frame of the image surface.

  Due to this specific matter, water droplets of water vapor adhering to the surface of the protection panel are heated from the back side by the heating wire stretched only around the back side of the protection panel, and the entire protection panel quickly receives heat from the surroundings. As a result, the fog removal time can be shortened, the fog on the surface of the protective panel itself can be effectively removed, and the anti-fogging effect on the surface of the protective panel can be maintained. . Moreover, since the heating wire is not stretched around the center of the protection panel located within the frame of the image surface, that is, the portion covering the image surface of the protection panel, the heating wire does not enter the image surface and clears it. It is possible to display a simple image.

  On the other hand, when the heating wire is stretched over the entire area of the back surface of the protective panel including the frame of the image surface, water vapor droplets adhering to the surface of the protective panel are heated from the back side by the heating wire. The entire protection panel is removed more quickly by having heat uniformly, it is possible to further reduce the fog removal time, and it is possible to more effectively remove the fog on the surface of the protection panel. It becomes possible to maintain the anti-fogging effect on the surface of the protective panel.

  In addition, when the heating wire is divided so as to correspond to each area of the back surface of the protection panel divided into a plurality, the protection panel is desired to be heated from the back surface side by the heating wire for each protection panel region. Water droplets of water vapor adhering to the part are quickly removed, and it is possible to effectively remove fogging of a desired part on the surface of the protective panel.

  Further, when the heating wire is turned on or off by a remote controller that remotely controls the liquid crystal television and the video monitor, the liquid crystal television and the video monitor are removed when removing water droplets of water vapor adhering to the protective panel surface. It is not necessary to approach the main body each time and turn on the heating wire, and it is possible to easily remove the fog on the surface of the protective panel with the remote control at hand.

  In short, the heating wire that removes fogging on the surface of the protection panel is stretched around the back surface of the protection panel, so that water droplets of water vapor attached to the surface of the protection panel can be quickly removed by the heating effect from the back surface side by the heating wire. It is possible to remove the fogging of the surface of the protective panel effectively, and the antifogging effect of the surface of the protective panel can be maintained.

  The best mode for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a liquid crystal television provided with an anti-fogging structure according to Embodiment 1 of the present invention, and the liquid crystal television 1 is attached to a wall surface of a bathroom (not shown).

  The liquid crystal television 1 includes a liquid crystal main body 2 having a liquid crystal screen 21 as an image surface on the front side located on the bathroom side, a circuit board 3 for controlling the liquid crystal main body 2, and the liquid crystal main body 2 and the circuit board 3 inside. The cabinet 10 is housed in an airtight state. The cabinet 10 includes a front cabinet 11 located on the bathroom side, and a rear cabinet 12 attached to the rear surface of the front cabinet 11 on the side opposite to the bathroom via a sealing material (not shown). A recess 13 that is recessed rearward is provided at the front central portion of the front cabinet 11. The bottom of the recess 13 has a rectangular opening 13a that exposes the liquid crystal screen 21 forward, and a frame 13b around the opening 13a.

  Further, as shown in FIG. 2, a protruding frame portion 14 that protrudes rearward (right side in FIG. 2) is provided at a corresponding position on the rear surface corresponding to the periphery of the recess 13 of the front cabinet 11. The liquid crystal body 2 is held in the recess 15a of the fixing angle member 15 that is recessed backward leaving the peripheral portion, and by attaching the peripheral portion of the fixing angle member 15 to the ridge frame portion 14, With the periphery of the liquid crystal screen 21 in contact with the rear surface of the frame portion 13b of the front cabinet 11 (concave portion 13), the liquid crystal screen 21 is forward (left side in FIG. 2) through the opening 13a of the front cabinet 11 (concave portion 13). It is attached so as to be exposed. The circuit board 3 is attached to the rear surface of the concave portion 15a of the fixing angle member 15 via a rib 15b.

  A protective panel 4 that protects the liquid crystal screen 21 of the liquid crystal main body 2 from the front side (front side) is attached to the recess 13 of the front cabinet 11. On the rear surface (rear surface) of the protective panel 4 located on the front side of the liquid crystal screen 21, a heating wire 5 for removing fogging adhered to the front surface of the protective panel 4 is stretched. As shown in FIG. 3, the heating wire 5 is stretched only around the periphery of the back surface of the protective panel 4 located outside the frame of the liquid crystal screen 21. Specifically, the heating wire 5 is bent in a substantially 90 ° manner at a predetermined interval in the first region of the left side edge and the upper edge of the back surface of the protective panel 4 located outside the frame of the liquid crystal screen 21 and covers it in a bowl shape. The first heating wire 51 stretched in this way and the second region of the right side edge and the lower edge of the back surface of the protective panel 4 located outside the frame of the liquid crystal screen 21 are bent at about 90 ° at predetermined intervals to form a bowl shape. It is divided into two systems, the second heating wire 52 extended so as to cover it, and each heating wire 51, 52 corresponds to each region of the back surface of the protection panel 4.

  The heating wires 51 and 52 are turned on or off by energizing the heating wires 51 and 52 by a switching operation unit (not shown). In this case, the switching operation unit is turned on or off by a command signal from a remote controller 6 (shown in FIG. 1) for remotely operating the liquid crystal television 1.

  Therefore, in the first embodiment, since the liquid crystal television 1 is installed in the bathroom, the water vapor droplets attached to the surface of the protective panel 4 caused by steam from the bathtub and shower are protected outside the frame of the liquid crystal screen 21. The first and second heating wires 51 and 52 stretched only around the periphery of the back surface of the panel 4 are heated from the back surface side, and the entire surface of the protection panel 4 is quickly removed by having heat from the surroundings to protect it. The fogging itself on the surface of the panel 4 can be effectively removed, and the antifogging effect on the surface of the protective panel 4 can be maintained.

  And since the 1st and 2nd heating wires 51 and 52 are not stretched in the center part of the protection panel 4 located in the frame of the liquid crystal screen 21, ie, the part which covers the liquid crystal screen 21 of the protection panel 4, A clear image can be displayed on the liquid crystal screen 21 without streaking of the first and second heating wires 51 and 52.

  In addition, the heating wire 5 is divided into two systems of the first and second heating wires 51 and 52 so as to correspond to the first and second regions on the back surface of the protection panel 4, so that the first of the protection panel 4. In addition, water droplets of water vapor adhered to the desired area of the protection panel 4 by being heated by the two heating lines 51 and 52 for each second area are quickly removed, and the desired area on the surface of the protection panel 4 is fogged. It can be effectively removed.

  Furthermore, since the energization of the first and second heating wires 51 and 52 is turned on or off by the switching operation unit that receives a command signal from the remote controller 6 that remotely operates the liquid crystal television 1, it adheres to the surface of the protective panel 4. It is not necessary to turn on the first and second heating wires 51 and 52 every time the liquid crystal television 1 is moved to the cabinet 10 when removing the water vapor, and the surface of the protective panel 4 is clouded by the remote controller 6 at hand. Easy to remove.

  Next, a second embodiment of the present invention will be described with reference to FIG.

  In this embodiment, the layout of the heating wire is changed. In addition, the structure other than a heating wire is the same as the case of the said Example 1, About the same part, the same code | symbol is attached | subjected and the detailed description is abbreviate | omitted.

  That is, in the present embodiment, as shown in FIG. 4, the heating wire 7 is stretched over the entire back surface of the protective panel 4 including the inside of the liquid crystal screen 21. Specifically, the heating wire 7 includes a first heating wire 71 that is bent at a predetermined interval in the first region at the upper left portion of the back surface of the protection panel 4 and is stretched so as to be covered in a bowl shape. In the second region of the lower left part of the back surface of the panel 4, a second heating wire 72 bent at a predetermined interval of approximately 90 ° and stretched so as to be covered in a bowl shape, and in the third region of the upper right part of the back surface of the protective panel 4 A third heating wire 73 that is bent at approximately 90 ° at a predetermined interval and stretched so as to be covered in a bowl shape, and is bent at approximately 90 ° at a predetermined interval in a fourth region in the lower right portion of the back surface of the protective panel 4. It is divided into four systems with a fourth heating wire 74 stretched so as to be covered in a bowl shape, and each heating wire 71 to 74 corresponds to each region of the back surface of the protection panel 4.

  The heating wires 71 to 74 are turned on or off by energizing the heating wires 71 to 74 by a switching operation unit (not shown). In this case, the switching operation unit is turned on or off by a command signal from a remote controller 6 that remotely operates the liquid crystal television 1.

  Therefore, in the said Example, the water droplet of the water vapor | steam adhering to the surface of the protection panel 4 is heated from the back side by the 1st thru | or 4th heating wires 71-74, and it becomes quicker because the whole protection panel 4 has heat uniformly. The fog removal time can be further shortened, the fog on the surface of the protective panel 4 itself can be more effectively removed, and the anti-fogging effect on the surface of the protective panel 4 can be maintained. it can.

  Further, the heating wire 7 is divided into four systems of first to fourth heating wires 71 to 74 so as to correspond to the first to fourth regions on the back surface of the protection panel 4, so that the first of the protection panel 4. In addition, water droplets of water vapor adhered to the desired area of the protection panel 4 by being heated by the four heating wires 71 to 74 for each fourth area are quickly removed, and the desired area on the surface of the protection panel 4 is fogged. It can be effectively removed.

  In addition, this invention is not limited to said each Example, The other various modifications are included. For example, in each of the above embodiments, the case where the anti-fogging structure is used in the liquid crystal television 1 has been described. However, the anti-fogging structure may be used in a video monitor that displays a recorded video or the like.

  In each of the above embodiments, the case where the liquid crystal television 1 is mounted on the wall surface of the bathroom has been described. However, the present invention can be applied to a case where the liquid crystal television and the video monitor are mounted in a humid place such as a washroom. is there.

  Furthermore, in each said Example, although the heating wires 5 and 7 were divided | segmented into 2 or 4 systems, a heating wire is used without dividing | segmenting only by 1 system, or dividing | segmenting and using it for 5 systems or more. May be.

It is a perspective view of the liquid crystal television using the anti-fogging structure concerning Example 1 of this invention. It is a longitudinal side view of a liquid crystal television. It is a front view of the protection panel which permeate | transmits and shows the system | strain of a heating wire similarly. It is a front view of the protection panel which permeate | transmits and shows the system | strain of the heating wire concerning Example 2 of this invention.

Explanation of symbols

1 LCD TV 21 LCD screen of the LCD main unit (LCD TV image plane)
4 protection panel 5 heating wire 51 1st heating wire (divided heating wire)
52 2nd heating wire (divided heating wire)
6 remote control 7 heating wire 71 1st heating wire (divided heating wire)
72 Second heating wire (divided heating wire)
73 3rd heating wire (divided heating wire)
74 4th heating wire (divided heating wire)

Claims (5)

An anti-fogging structure for LCD TVs and video monitors installed in humid places such as bathrooms,
A protection panel for protecting the image surface is attached to the surface side of the image surface of the liquid crystal television and the video monitor.
An antifogging structure for a liquid crystal television and a video monitor, characterized in that a heating wire for removing the fogging adhering to the surface of the protective panel is provided on the back surface of the protective panel. In the anti-fogging structure of the liquid crystal television and video monitor according to claim 1,
An antifogging structure for a liquid crystal television and a video monitor, wherein the heating wire is stretched only around the periphery of the back surface of the protective panel located outside the frame of the image surface. In the anti-fogging structure of the liquid crystal television and video monitor according to claim 1,
An antifogging structure for a liquid crystal television and a video monitor, characterized in that the heating wire is stretched over the entire back surface of the protective panel including the frame of the image surface. In the anti-fogging structure of the liquid crystal television and video monitor according to claim 3,
An anti-fogging structure for a liquid crystal television and a video monitor, wherein the heating wire is divided so as to correspond to each area of the back surface of the protective panel divided into a plurality. In the anti-fogging structure for a liquid crystal television and a video monitor according to any one of claims 1 to 4,
An antifogging structure for a liquid crystal television and a video monitor, wherein the heating wire is turned on or off by a remote controller for remotely operating the liquid crystal television and the video monitor.

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