JP3115175U - Liquid crystal television and display device housing structure - Google Patents

Abstract

An object of the present invention is to suppress the occurrence of uneven color, to suppress the occurrence of chatter, and to eliminate the non-uniformity of the gap between the cabinet and the display device.
A liquid crystal module having a bezel on the front edge of a liquid crystal panel, and a television cabinet having a front side wall that covers the edge of the liquid crystal panel from the front and exposes an image display area of the liquid crystal panel to the outside through a substantially central opening. In a liquid crystal television in which a predetermined elastic sheet is pasted on the inner wall of the front side wall surface in the range facing the bezel, the liquid crystal module is accommodated and fixed without sticking the elastic sheet on the inner wall of the front side wall surface. In order to extend the first rib having a length that comes into contact with the vessel at the time of the operation from the inner wall, and to fix the first rib and the fixed portion protruding from the middle position in the thickness direction of the liquid crystal module The boss and the second rib provided on the inner wall were integrally formed.
[Selection] Figure 3

Description

  The present invention relates to a liquid crystal television and a display device housing structure.

  FIG. 5 shows a conventional housing / attaching structure of a liquid crystal module to a front cabinet. The figure shows a part of the liquid crystal module 20 and the vicinity of the left end when viewed from the front of the liquid crystal television and the part of the front cabinet 10 as a housing of the television and the vicinity of the end. The portions are shown when viewed from above the liquid crystal television. However, the front cabinet 10 is shown by a cross section in the front-rear direction.

  As shown in the figure, the front surface 11 which is the front side wall surface of the front cabinet 10 covers the edge region of the liquid crystal panel 21 from the front. A boss 12 and a rib 13 are erected from the inner wall of the front surface 11 toward the inside of the cabinet. Furthermore, an opening 16 for exposing the screen display area of the liquid crystal panel 21 to the outside is formed in the approximate center of the front surface 11.

  On the other hand, from the side surface (left side surface in the figure) that forms the thickness direction (front-rear direction) of the liquid crystal module 20, a fixed portion 22 formed using metal, resin, or the like is substantially the same as the screen. It protrudes in the parallel direction. The fixed portion 22 is a portion that comes into contact with the tip of the boss 12 and the rib 13 when the liquid crystal module 20 is accommodated in the front cabinet 10. The screw hole formed in advance in the boss hole 12 a of the boss 12 and the fixed portion 22. 24 are aligned, and both are fixed by screws 40.

  In addition, a sheet metal (bezel) 23 for reinforcing the liquid crystal module 20 is attached around the liquid crystal module 20 including the edge region on the front surface of the liquid crystal panel 21. When the fixed portion 22 is positioned by the boss 12 and the rib 13 as described above, the portion of the bezel 23 that covers the front edge region of the liquid crystal panel 21 is formed by the boss 12 and the rib 13 on the inner wall of the front surface 11. It is opposed to a part closer to the opening 16 than the formed position with a certain distance. Moreover, the front end 15a of the opening side end portion 15 that substantially constitutes the opening 16 in the front surface 11 partly protrudes toward the inside of the cabinet, and the front end 15a and the front surface of the liquid crystal panel 21 are It is opposed with a gap narrower than the distance.

  Conventionally, in this configuration, as shown in the figure, a gap space between the bezel 23 and the inner wall of the front surface 11 is obtained by attaching an elastic sheet 50 having elasticity such as a nonwoven fabric to the inner wall of the front surface 11 facing the bezel 23. Was solved.

Further, as a conventional technique, a bezel mounting structure that presses and holds a bezel that protects a touch sensor with a housing opening and a frame is known (for example, see Patent Document 1).
Further, Patent Documents 2 to 4 are known as conventional techniques.
Japanese Utility Model Publication No. 2-14137 Japanese Patent Laid-Open No. 1-187626 Japanese Utility Model Publication No. 62-154548 Japanese Utility Model Publication No. 1-147438

  When the liquid crystal module 20 is positioned in the front-rear direction using the bosses 12 and the ribs 13 as in the prior art, the position where the front cabinet 10 and the liquid crystal module 20 are fixed is the outermost position in the liquid crystal module 20 called the fixed part 22. Met. Therefore, if the tightening degree of the screw 40 is excessively increased, the front cabinet 10, particularly the front surface 11 is bent, and the bezel 23 is pressed with a strong force via the elastic sheet 50, or the tip 15 a of the opening side end 15. Sometimes touched the liquid crystal panel 21. Such a load caused by unnecessary contact causes a so-called color unevenness phenomenon in which an image is displayed in the vicinity of the contacted portion when an image is displayed on the liquid crystal panel 21.

  In the liquid crystal television, the front cabinet 10 vibrates finely when outputting sound. The elastic sheet 50 is a member affixed to suppress a phenomenon (so-called chattering) in which sound vibrates due to repeated slight contact between the liquid crystal module 20 side and the front cabinet 10 due to such vibration. The pasting operation itself of the sheet 50 is a heavy burden in the manufacturing process of the liquid crystal television. Moreover, since the elastic sheet 50, such as a nonwoven fabric, is expensive, it has increased the product cost.

  Furthermore, the positioning structure in the front-rear direction of the liquid crystal module 20 described above is a structure in which it is difficult to keep the gap between the tip 15a and the liquid crystal panel 21 constant. It was difficult to maintain the uniformity of the gap.

  Furthermore, each of the above-mentioned documents does not solve the above-described problems that occur when the positioning structure in the front-rear direction of the liquid crystal module 20 and the elastic sheet 50 are employed.

  The present invention has been made in view of the above problems, reduces the cost and the number of operations required for manufacturing, suppresses the occurrence of color unevenness in the display device, suppresses the occurrence of chatter, and further includes a cabinet and a display device. An object of the present invention is to provide a liquid crystal television and a display device housing structure capable of eliminating the non-uniformity of the gap.

  In order to achieve the above object, the invention of claim 2 is a display device housing structure in which a display device having a bezel at the front edge is accommodated in the interior of the television cabinet, wherein the television cabinet has the front edge. A first rib having a length that comes into contact with the vessel when the display device is accommodated and fixed is extended from the inner wall of the front side wall surface that covers the front and exposes the image display area on the front surface to the outside. As a configuration.

  In the second aspect configured as described above, when the display device is housed and fixed inside the television cabinet, the first rib extending from the inner wall of the front side wall surface of the television cabinet includes the display device. It abuts against the bezel provided on the front edge. That is, the first rib serves as a support between the front side wall surface and the bezel, and the distance between the front side wall surface and the display device is constant. Therefore, the front side wall surface does not vibrate in a free state, and chattering due to repeated fine contact between the front end of the front side wall surface and the front surface of the display device can be suppressed.

  In addition, the presence of the first rib prevents the front side wall surface from being bent, and the distance between the front side wall surface and the front surface of the bezel or display device is more stable than when a conventional elastic sheet such as a nonwoven fabric is used. Unnecessary external load on the front surface of the apparatus is reduced, and the above-described color unevenness is also eliminated.

  According to a third aspect of the present invention, in the display device housing structure according to the second aspect, a boss for fixing a fixed portion protruding from an intermediate position on the side surface in the thickness direction of the display device and an inner wall of the front side wall surface A second rib is provided, and the first rib is formed integrally with the boss and the second rib.

In the third aspect configured as described above, when the display device is accommodated in the television cabinet, a fixed portion protruding from a midway position on the side surface in the thickness direction of the display device is provided on the inner wall of the front side wall surface. The boss and the second rib are fixed in contact with each other. The first rib, the boss and the second rib are integrally formed.
In other words, the part to be fixed is moved from the front wall surface to the inside of the cabinet by the length of the boss and the second rib, and the bezel is moved from the front wall surface to the inside of the cabinet by the length of the first rib. By positioning each of these, positioning in the front-rear direction in the cabinet of the display device is ensured.

According to a fourth aspect of the present invention, in the display device housing structure according to the second or third aspect, the bezel includes a surface that substantially contacts an edge region on the front surface of the display device. The portion is bent in a wave shape.
According to the fourth aspect configured as described above, the bezel is improved in strength because the part of the surface that substantially contacts the edge region on the front surface of the display device is bent in a wave shape. In other words, even when the front side wall is bent and the bezel is pressed by the front side wall, the influence of the pressing does not reach the display device inside the bezel because the bezel itself has high strength, Such color unevenness does not occur.

The invention of claim 5 is the display device housing structure according to any one of claims 2 to 4, wherein the display device is a liquid crystal module.
That is, by applying each of the above-described configurations when the liquid crystal module is housed and fixed in the television cabinet, the color unevenness that easily occurs in the liquid crystal panel can be appropriately eliminated.

  In consideration of each of the above-described configurations, the invention of claim 1 is a liquid crystal module having a bezel on the front edge of the liquid crystal panel, and a housing for housing the liquid crystal module, and covers the edge of the liquid crystal panel from the front. A television cabinet having a front side wall surface that exposes an image display area of the liquid crystal panel to the outside from a substantially central opening, and a predetermined elastic sheet is attached to a range of the inner wall of the front side wall surface facing the bezel. In the liquid crystal television, on the inner wall of the front side wall surface, the elastic sheet is not attached, and a first rib having a length contacting the vessel when the liquid crystal module is accommodated is extended from the inner wall, and A bolt provided on the inner wall for fixing the first rib and the fixed portion protruding from the middle position of the side surface in the thickness direction of the liquid crystal module. And a second rib integrally formed, said bezel has a configuration that is bent a part of the surface wave provided with a substantially abutting face in the vertical and horizontal edge areas of the liquid crystal panel front.

  Thus, in claim 1 having a more specific configuration, it goes without saying that the same operations and effects as in claims 2 to 5 are achieved.

As described above, according to the present invention, in the television cabinet, the distance between the front side wall surface and the bezel and front surface of the display device is kept constant, and unnecessary deformation and vibration of the front side wall surface are eliminated. So-called color unevenness and chattering can be reliably prohibited.
In addition, since the uniformity of the gap between the front side wall surface and the front surface of the display device is maintained, the problem of defective products due to the non-uniformity of the gap is solved.
Furthermore, since it is no longer necessary to attach an elastic sheet to the inner wall of the front side wall surface to reduce chatter as in the prior art, the cost for manufacturing the product and the amount of work can be reduced as compared with the prior art.

FIG. 1 is a perspective view showing a schematic structure of assembly of a liquid crystal television 100 according to the present invention. In the following description, the same components as those in FIG. 5 described above are denoted by the same reference numerals as those in FIG.
As shown in FIG. 1, the liquid crystal television 100 is configured by housing the liquid crystal module 20 in a television cabinet formed by a front cabinet 10 and a rear cabinet 30. The front cabinet 10 is configured by a front surface 11 having an opening 16 formed substantially at the center, and side surfaces extending substantially rearward from the upper, lower, left and right sides of the front surface 11.

The liquid crystal module 20 is a product in which a backlight, a liquid crystal panel drive circuit, and the like are combined, including a liquid crystal panel 21 having a flat screen (front surface). The front surface 11 covers the liquid crystal module 20 from the front and exposes the image display area of the liquid crystal panel 21 to the outside through the opening 16. Further, the liquid crystal module 20 has a fixed portion 22 protruding in a direction substantially parallel to the screen from the upper, lower, left and right side surfaces.
Although illustration is omitted, in addition to the liquid crystal module 20, the television cabinet implements functions as a television such as a tuner circuit, a power supply circuit, a video processing circuit, and an audio processing circuit. Various parts are accommodated.

  Although omitted in FIG. 1, a vessel 23 as a reinforcing material is attached to a predetermined portion of the liquid crystal module 20 including the edge of the liquid crystal panel 21. The bezel 23 covers the periphery of the liquid crystal module 20 including at least the upper, lower, left, and right edge regions on the front surface of the liquid crystal panel 21 (see the shaded display in FIG. 1).

FIG. 2 shows the front cabinet 10 from the back side.
In the present embodiment, bezel positioning portions 60 including bosses 12, ribs 13 (second ribs), and ribs 14 (first ribs) are formed at a plurality of locations on the back side (inner wall) of the front surface 11. The boss 12, the rib 13, and the rib 14 are all vertically formed from the inner wall of the front surface 11 toward the rear and are integrally formed.
That is, in the prior art, the boss 12 and the rib 13 are formed on the inner wall, and an elastic sheet 50 such as a nonwoven fabric is attached to a range closer to the opening 16 than these. It is assumed that the rib 14 is newly formed in the range where the elastic sheet 50 is pasted without pasting 50. The configuration and function of each bezel positioning unit 60 are common.

  FIG. 3 shows a housing / attachment structure of the liquid crystal module according to the present invention to the front cabinet. As in FIG. 5, this figure is a part of the liquid crystal module 20 and accommodates the vicinity of the left end when viewed from the front of the liquid crystal television 100 and the part of the front cabinet 10 and the vicinity of the end. The portion is shown when viewed from above the liquid crystal television 100. Here, the front cabinet 10 is shown in a cross-sectional view when cut in the front-rear direction by a one-dot chain line in FIG.

Of the configurations shown in FIG. 3, configurations different from those in FIG. 5 will be mainly described.
When the liquid crystal module 20 is housed in the front cabinet 10, first, the fixed portion 22 abuts on the tips of the rib 13 and the boss 12 (strictly speaking, the bezel 23 extends to the front side of the fixed portion 22). In the case of covering, the bezel 23 comes into contact with the ribs 13 and the tips of the bosses 12), and is screwed in that position. The position in the front-rear direction of the fixed portion 22 is determined by the height of the boss 12 and the rib 13 from the front surface 11.

A rib 14 extends from the inner wall of the front surface 11 facing the surface (panel surface reinforcing portion 23 a) of the bezel 23 attached to the liquid crystal module 20 that contacts the edge region of the front surface of the liquid crystal panel 21. The rib 14 has a lower height from the front surface 11 than the boss 12 and the rib 13, and contacts the panel surface reinforcing portion 23 a when the fixed portion 22 is positioned by the boss 12 and the rib 13 as described above. Designed to height.
Further, the height from the front surface 11 of the tip 15a at the opening end 15 is such that the clearance between the front surface of the liquid crystal panel 21 and the tip 15a when the fixed portion 22 is positioned by the boss 12 and the rib 13 is determined. It is designed to have an ideal value d (for example, 0, 2 mm).

As described above, by extending the rib 14 having a height that comes into contact with the panel surface reinforcing portion 23a from the inner wall of the front surface 11, the following effects are produced.
That is, in addition to the boss 12 and the rib 13, the liquid crystal module 20 is positioned in the front-rear direction in the front cabinet 10 even at a position closer to the opening 16 and closer to the front surface 11. Therefore, the force at the time of fixing the liquid crystal module 20 to the front cabinet 10 is dispersed without concentrating only around the screw hole 24 of the fixed portion 22. As a result, the bending and deformation of the front cabinet 10 (front surface 11) due to the tightening of the screws 40 is prevented, and a part of the front surface 11 such as the tip 15a contacts the liquid crystal panel 21 unnecessarily due to the bending and deformation. Color unevenness that may occur is not generated.

Further, the ribs 14 are interposed between the inner wall of the front surface 11 and the panel surface reinforcing portion 23a so as to connect them, so that the liquid crystal television 100 outputs sound, particularly near the opening 16 in the front surface 11. It is prohibited to vibrate when the part is free. Therefore, it is possible to suppress the occurrence of chatter that occurs when the tip 15a of the opening-side end 15 vibrates finely and repeatedly contacts the front surface of the liquid crystal panel 21.
The present invention is preferably applied to a liquid crystal television according to a model of 20 inches or less that originally has a low strength and is easily deformed because the thickness of the television cabinet is designed to be thin. .

  Furthermore, since the front surface 11 is prevented from being bent and deformed by the presence of the ribs 14 as described above, the tip 15a of the opening side end portion 15 keeps the gap between the front surface of the liquid crystal panel 21 at the ideal value d. Can do. Since the bezel positioning portions 60 are provided at a plurality of locations around the opening 16 as shown in FIG. 2, gaps between the front end 15a and the front surface of the liquid crystal panel 21 are formed at almost all positions above, below, left, and right of the opening 16. The ideal value d can be maintained, and the problem of generation of defective products due to such non-uniform gaps is solved.

  Furthermore, since it is no longer necessary to attach the elastic sheet 50 to the inner wall of the front surface 11 as a measure against chatter, the number of operations in the manufacturing process of the liquid crystal television 100 can be reduced, and the elastic sheet 50 is used. It is possible to suppress the increase in product cost due to the fact that

  Further, the present invention can be realized by simply adding an improvement of cutting the portion corresponding to the rib 14 to the thermoforming mold used when thermoforming the conventional front cabinet 10. Economical.

In order to more effectively prevent the color unevenness, the following configuration may be adopted.
FIG. 4 shows a structure for housing and mounting the liquid crystal module according to the present invention to the front cabinet, and shows another example. The figure differs from FIG. 3 in that the panel surface reinforcing portion 23a of the bezel 23 is provided with a squeezing 23a1. The squeezing 23a1 is a part where a part of the panel surface reinforcing portion 23a is bent in a wave shape. Is formed.

  That is, the strength of the panel surface reinforcing portion 23a is further increased by inserting the squeezing 23a1 rather than simply making the panel surface reinforcing portion 23a into a plate shape. As a result, even if the front surface 11 is deformed and the rib 14 presses the panel surface reinforcing portion 23a more than necessary, the panel surface reinforcing portion 23a itself does not deform because it has high strength, It is prohibited that an unnecessary load is transmitted to the inner liquid crystal panel 21. As a result, the occurrence of the color unevenness that may occur when an unnecessary external load is applied to the liquid crystal panel 21 is more reliably suppressed.

The perspective view which showed roughly the assembly of the liquid crystal television concerning this invention. The rear view of a front cabinet. The figure which shows the accommodation and attachment structure to the front cabinet of a liquid crystal module. The figure which shows the accommodation and attachment structure to the front cabinet of the liquid crystal module concerning another example. The figure which shows the accommodation / attachment structure to the front cabinet of the conventional liquid crystal module.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Front cabinet 11 ... Front surface 12 ... Boss 13 ... Rib 14 ... Rib 15 ... Opening side edge 15a ... Tip 16 ... Opening 20 ... Liquid crystal module 21 ... Liquid crystal panel 22 ... Fixed part 23 ... Bezel 23a ... Panel surface reinforcement Part 23a1 ... Squeezing 30 ... Rear cabinet 50 ... Elastic sheet 60 ... Bezel positioning part 100 ... Liquid crystal television

Claims (5)

A liquid crystal module having a bezel at the front edge of the liquid crystal panel, and a housing that houses the liquid crystal module, covers the edge of the liquid crystal panel from the front, and exposes the image display area of the liquid crystal panel to the outside through a substantially central opening. In a liquid crystal television comprising a television cabinet having a front side wall surface, and a predetermined elastic sheet attached to a range facing the bezel on the inner wall of the front side wall surface,
On the inner wall of the front side wall surface, the first rib having a length that comes into contact with the vessel when the liquid crystal module is accommodated and fixed without extending the elastic sheet is extended from the inner wall, and the first A rib and a boss and a second rib provided on the inner wall are formed integrally to fix a fixed portion protruding from a midway position on the side surface in the thickness direction of the liquid crystal module,
The liquid crystal television according to claim 1, wherein the bezel has a surface substantially in contact with the upper, lower, left and right edge regions on the front surface of the liquid crystal panel, and a part of the surface is bent in a wave shape. In a display device housing structure for housing a display device having a bezel at the front edge inside a television cabinet,
The television cabinet has a length that comes into contact with the vessel when the display device is accommodated and fixed from the inner wall of the front side wall surface that covers the edge of the front surface from the front and exposes the image display area on the front surface to the outside. The display apparatus accommodation structure characterized by extending the first rib.   The inner wall of the front side wall surface is provided with a boss and a second rib for fixing a fixed portion protruding from a midway position in the side surface in the thickness direction of the display device, and the first rib includes the boss and The display device housing structure according to claim 2, wherein the display device housing structure is formed integrally with the second rib.   The said bezel is provided with the surface which substantially contact | abuts the edge area | region in the front surface of a display apparatus, and bent a part of the said surface in the shape of a wave, The Claim 2 or Claim 3 characterized by the above-mentioned. Display device housing structure. The display device housing structure according to claim 2, wherein the display device is a liquid crystal module.

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