JP4186960B2 - LCD module - Google Patents

Description

  According to the present invention, a rectangular frame-shaped bezel that squeezes a liquid crystal panel between a liquid crystal module and, in particular, a frame frame is screwed to the frame frame by using screw fixing pieces protruding outside the bezel. It relates to the liquid crystal module.

  FIG. 5 is an exploded perspective view showing a basic configuration of a liquid crystal module used in a television receiver. As shown in the figure, a liquid crystal module used in a television receiver includes a liquid crystal panel 1, a rectangular frame bezel 2 fitted to the outer periphery of the liquid crystal panel 1, and a liquid crystal panel between the bezel 2. A frame frame 3 that sandwiches 1, a linear light source 4 for backlight disposed in a space surrounded by the frame frame 3, and a reflection sheet that reflects light from the linear light source 4 toward the liquid crystal panel 1 5 and a back plate 6 that sandwiches the reflection sheet 3 between the frame frame 3 and a light diffusing sheet 71 and panel 72, a cushion spacer 73, relay boards 81 and 82, and the like. . The bezel 2 is provided with screwing pieces 21 protruding outward at the four corners thereof, and these screwing pieces 21 are screwed to the frame frame 3 using the fixing screws 91. Further, the relay boards 81 and 82 are screwed to the side surface of the back plate 6 using the retaining screws 9.

  In such a liquid crystal module, the bezel 2 is manufactured by punching a sheet metal. In that case, if the bezel 2 is punched out of a sheet metal work into a rectangular frame shape as shown in FIG. Compared to the cost of the necessary materials, the work made of sheet metal was expensive.

  Therefore, in order to suppress the occurrence of such material loss, the bezel 2 was divided into two members and each member was punched from a sheet metal work. In this way, by appropriately selecting the punching pattern of the two members, it is possible to suppress the occurrence of material loss, and, as shown in FIG. When the butted portions (a) and (b) are joined together by welding in a rectangular frame shape, they can be fixed to the frame frame 3 by screwing similarly to the bezel 2 described in FIG.

On the other hand, to form a rectangular frame-shaped bezel, two L-shaped members are manufactured to reduce material loss, and then these two members are butted together into a rectangular frame shape and the butted portions are joined. Various proposals have been made in the past for forming the bezel (see, for example, Patent Documents 1 to 7), and all of them are formed into a rectangular frame prior to fitting the liquid crystal panel. It was to combine.
JP 2000-314872 A JP 2003-344826 A Japanese Patent Laid-Open No. 2002-23648 Japanese Unexamined Patent Publication No. 4-73714 Japanese Patent Laid-Open No. 11-133418 JP 2002-246919 A JP 2002-258769 A

  However, after joining two members punched out of a sheet metal workpiece into a rectangular frame shape, the liquid crystal module is assembled by fitting the bezel 2 to the liquid crystal panel 1 and screwing the frame frame 3 as shown in FIG. In addition to the work of screwing the bezel 2 to the frame frame 3, it is necessary to perform an extra work of joining the two members to produce the rectangular frame-shaped bezel 2. Therefore, in the techniques conventionally proposed by Patent Documents 1 to 7 and the like, although the material loss of the sheet metal workpiece used for punching the bezel can be reduced, the two punched members are rectangular frame-shaped. Therefore, there is a problem that the extra work of forming and joining the two parts becomes necessary, which increases the assembly cost.

  The present invention has been made in view of the above problems, and is based on dividing a rectangular frame-shaped bezel into two members and punching each member out of a sheet metal work to minimize material loss. Cost reduction due to the ability to suppress material loss by taking measures such that the work of joining two members into a rectangular frame is combined with the work of fastening the two members to the frame frame A liquid crystal module that exhibits both the effect and the cost reduction effect due to the fact that it is possible to omit the work of joining the two members into a rectangular frame shape that was performed prior to attaching the liquid crystal panel to the frame frame The purpose is to provide.

A liquid crystal module according to the present invention includes a liquid crystal panel, a rectangular frame-shaped bezel fitted to the outer periphery of the liquid crystal panel, a frame frame for sandwiching the liquid crystal panel between the bezel, and the frame frame. A linear light source for a backlight disposed in the space, a reflective sheet that reflects the light of the linear light source toward the liquid crystal panel, and a back plate that sandwiches the reflective sheet between the frame frame The screw fixing piece provided on the bezel and protruding outward and the frame frame are screwed. Then, with dividing the bezel to the first and second two members, the screwing piece, made of a protruding piece superimposed each other are provided in each of the first and second members, the bis The projecting piece forming the stop piece has a screw insertion hole through which the stop screw can be inserted, the frame frame has a boss through which the stop screw can be inserted, and the back plate is screwed into the stop screw. The fixing screw having a flange having a screw hole and inserted into the screw insertion hole of the projecting piece forming the screw fixing piece and the boss of the frame frame is inserted into the screw hole of the flange of the back plate. By screwing and screwing the screw stopper piece to the frame frame with the stopper screw, the first and second members are framed in a rectangular shape to form the frame-shaped rectangular bezel.

  With this configuration, after the first and second members are fitted to the outer periphery of the liquid crystal panel and formed into a rectangular frame shape, the first member side protruding piece and the second member side protruding piece are A rectangular frame-shaped bezel is formed by the first and second members simply by superimposing to form a screw-fixing piece and fixing the screw-fastening piece to the frame frame. A liquid crystal panel is sandwiched between the bezel and the frame frame. Therefore, it is possible to omit the extra work of joining the two members into a rectangular frame before attaching the liquid crystal panel to the frame frame.

Further, the first and second members are formed in an L shape by dividing the frame-shaped rectangular bezel by two corner portions positioned in the diagonal direction, and at each divided end of each member, By adopting the configuration in which the protruding pieces are arranged, the two members can be punched from the sheet metal workpiece in a pattern in which the corners of the first member are aligned with the corners of the second member. It is possible to minimize material loss that occurs during punching.

  In the present invention, the first and second members are brought into contact with each other at right angles by being engaged with the above-mentioned projecting pieces that are superposed on each other to form a screw-fastening piece, and are provided in these projecting pieces. It is desirable that positioning means for aligning the screw insertion holes is provided, which not only improves the screwing workability but also allows the first and second through screwing the screwing pieces to the frame frame. The shape of the rectangular frame-shaped bezel constituted by the two members 2 is stabilized.

A liquid crystal module according to the present invention includes a liquid crystal panel, a rectangular frame-shaped bezel fitted to the outer periphery of the liquid crystal panel, a frame frame for sandwiching the liquid crystal panel between the bezel, and the frame frame. A linear light source for a backlight disposed in the space, a reflective sheet that reflects the light of the linear light source toward the liquid crystal panel, and a back plate that sandwiches the reflective sheet between the frame frame In a liquid crystal module in which a screw stopper piece provided on the bezel and protruding outward and the frame frame is screwed, the bezel is formed into an L shape at two corners positioned diagonally. thereby divided into first and second two members, mutually superimposed to each divided ends of two portions of the respective members are equipped with protruding pieces that form the screwing pieces thereof The piece is provided with positioning means for engaging the first member and the second member at right angles with each other and aligning the screw insertion holes established in the protruding pieces, Another screw stopper piece projecting outward is added to each corner portion of the first and second members, and the projecting piece forming the screw stopper piece can be inserted into the stopper screw. A screw insertion hole, the frame frame has a boss through which the set screw can be inserted, and the back plate has a flange with a screw hole into which the set screw is screwed to form the screw fixing piece. The set screw inserted into the screw insertion hole of the projecting piece and the boss of the frame frame is screwed into the screw hole of the flange of the back plate, and the screw fixing piece is screwed to the frame frame with the set screw. by, first And the second two members are rectangularly framed to form the frame-shaped rectangular bezel, and the other screwing pieces at the corners of the first and second members, respectively. This can be further realized by adopting a configuration in which each is screwed to the frame frame by a retaining screw.

In the present invention, another screw stopper piece protruding outward is added to each corner portion of the first and second members formed in an L shape, and they are screwed to the frame frame. It is possible to increase the bonding strength to the frame frame by increasing the number of screwing points of the first and second members. The operation of the present invention will be described in detail with reference to embodiments described later.

  As described above, according to the present invention, since the rectangular frame-shaped bezel is divided into two members, the members can be punched from the sheet metal workpiece, and the material loss when forming the bezel is reduced. It can be reduced. In addition, since the work of connecting the two members into a rectangular frame shape to form the bezel is performed together by the work of screwing the two members to the frame frame, before attaching the liquid crystal panel to the frame frame It is not necessary to perform an extra work of joining the two members into a rectangular frame shape. As a result, both the cost reduction effect due to the suppression of material loss and the cost reduction effect due to the ability to omit the single operation of joining the two members into the rectangular frame shape are exhibited. The effect of facilitating a significant cost reduction is achieved.

  FIG. 1 is an exploded perspective view of a liquid crystal module according to an embodiment of the present invention, FIG. 2 is a plan view showing first and second members 25 and 26, and FIG. 3 shows screw fixing points of the two members 25 and 26. The exploded perspective view shown in FIG. 4 is a plan view of the screwing portion.

  As shown in FIG. 1, the configuration of the liquid crystal module is the same as that described with reference to FIG. 5 except that the bezel 2 is configured by the first and second members 25 and 26. That is, this liquid crystal module is for a television receiver, and includes a liquid crystal panel 1 and first and second two for forming a rectangular frame-shaped bezel 2 fitted to the outer periphery of the liquid crystal panel 1. A frame frame 3 that sandwiches the liquid crystal panel 1 between the members 25 and 26 and the bezel 2, a linear light source 4 for backlight disposed in a space surrounded by the frame frame 3, and the linear light source 4 and the back plate 6 that sandwiches the reflection sheet 3 between the frame frame 3 and the light diffusion sheet 71 and the panel 72, A cushion spacer 73, relay boards 81 and 82, and the like are provided.

  As shown in FIG. 2, the first member 25 and the second member 26 are configured in a substantially symmetrical L shape by dividing the rectangular frame bezel 2 into two corners located in the diagonal direction. ing. Therefore, when these members 25 and 26 are punched from the sheet metal workpiece, the material loss is minimized by adopting a pattern of punching by matching the protruding corner of the second member with the entering corner of the first member 25. It becomes possible.

  The projecting piece 110 provided on one end of the first member 25 and the projecting piece 120 provided on one side of the second member 26 are overlapped with each other to form the screwing piece 100. Yes. Similarly, the protruding piece 120 provided at the other divided end of the first member 25 and the protruding piece 110 provided at the other side of the second member 26 are overlapped with each other so as to form the screwing piece 100. It has become. Here, the projecting piece 110 provided on one side of the first member 25, the projecting piece 110 provided on the other side of the second member 26, and the projecting provided on one side of the second member 26. The piece 120 and the protruding piece 120 provided at the other end of the first member 25 have the same configuration. That is, as shown in FIG. 3, the one-side protruding piece 110 has a screw insertion hole 112 and a protrusion 113 formed by burring, whereas the other-side protruding piece 120 overlapped therewith. The screw insertion hole 122 and the hole 123 into which the projection 113 is fitted are provided. The protrusion 113 and the hole 123 constitute a positioning means. When the two protrusions 110 and 120 are overlapped and the protrusion 113 is fitted into the hole 123, the first member 25 and the second member 26 are combined. Are aligned at right angles (see FIG. 4), and screw insertion holes 112, 122 provided in the protruding pieces 110, 120 are aligned. Further, as shown in FIG. 2, screwing pieces 27 and 28 protruding outward are added to the corner portion of the first member 25 and the corner portion of the second member 26.

  When assembling the liquid crystal module, the light diffusion panel 72, the sheet 71, and the cushion spacer 73 are stacked in this order on the frame frame 3, and the liquid crystal panel 1 is mounted thereon, as can be inferred from FIG. Put. Next, the first member 25 is put on the two sides of the liquid crystal panel 1 and the second member 26 is put on the other two sides, and the linear light source 4 is arranged in the space surrounded by the frame 3. Then, the reflective sheet 5 is sandwiched between the frame frame 3 and the back plate 6. Then, the two fixing screws 91 are overlapped with each other at the two divided ends of the members 25 and 26 to form screw fixing pieces 100 and the screw insertion holes 112 and 122 of the two projecting pieces 110 and 120 and the frame It is inserted through the boss 31 of the frame 3 (see FIG. 3) and screwed into the screw hole 62 of the flange 61 formed on the back plate 6. By the screwing operation at this time, the first member 25 and the second member 26 are formed in a rectangular frame shape to form the bezel 2, and the bezel 2 sandwiches the liquid crystal panel 1 between the frame frame 3. become. Therefore, prior to attaching the liquid crystal panel 1 to the frame 3, it is not necessary to perform an extra assembly operation of joining the two members 25, 26 into a rectangular frame shape. A separate process for joining the rectangular frame is not required, and the assembly cost is reduced accordingly.

  Further, when the screw stopper pieces 27 and 28 added to the corner portion of the first member 25 and the corner portion of the second member 26 are fixed to the frame frame 3 by screws 91, the corner portion and the second portion of the first member 25 are fixed. Since the number of screw-fixed portions of the member 26 increases, the bonding strength of the first and second members 15 and 16 to the frame frame 3 increases accordingly.

  Since the liquid crystal module of this embodiment is for a television receiver, a certain amount of space is secured around the liquid crystal module. Therefore, even if the screw stopper pieces 100, 27, 28 protrude to the outside of the bezel 2 as described above, this hinders the assembly of the liquid crystal module or hinders downsizing of the television receiver. There is no fear. Moreover, in this embodiment, the frame frame 3 consists of a resin molding.

It is a disassembled perspective view of the liquid crystal module which concerns on embodiment of this invention. It is the top view which showed the 1st and 2nd member. It is the disassembled perspective view which showed the screw stop location of two members. It is a top view of the screw stop location. It is the disassembled perspective view which showed the basic composition of the liquid crystal module used for a television receiver. It is a top view of the bezel stamped out to the rectangular frame shape. It is a top view of the bezel comprised by butting two members to a rectangular frame shape, and joining the butting location by welding.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Liquid crystal panel 2 Bezel 3 Frame frame 4 Linear light source 5 Reflective sheet 6 Back plate 25 1st member 26 2nd member 27, 28 Another screwing piece 100 Screwing piece 110,120 Protruding piece 112,122 Screw insertion hole 113 Protrusion (positioning means)
123 hole (positioning means)

Claims (3)

A liquid crystal panel, a rectangular frame-shaped bezel fitted to the outer periphery of the liquid crystal panel, a frame frame that sandwiches the liquid crystal panel between the bezel, and a back disposed in a space surrounded by the frame frame A linear light source for light; a reflection sheet that reflects light from the linear light source toward the liquid crystal panel; and a back plate that sandwiches the reflection sheet between the frame frame and is provided on the bezel. In the liquid crystal module formed by screwing the screw stopper piece protruding outward and the frame frame,
The bezel is divided into two L-shaped first and second members at two corners positioned diagonally, and is overlapped with each other at two divided ends of each member. Protrusions that form screw stopper pieces are provided, and the projecting pieces are engaged with each other so that the first member and the second member are abutted at a right angle, and screw insertion holes provided in the projecting pieces are provided. Positioning means for positioning is provided, and another screwing piece protruding outward is added to each corner portion of the first and second members, and the screwing piece is The formed projecting piece has a screw insertion hole through which a set screw can be inserted, the frame frame has a boss through which the set screw can be inserted, and the back plate has a screw hole into which the set screw is screwed. Having a flange with
The set screw inserted into the screw insertion hole of the projecting piece forming the screw fixing piece and the boss of the frame frame is screwed into the screw hole of the flange of the back plate, and the screw fixing piece is attached to the frame frame. The first and second members are framed in a rectangular shape to form the frame-shaped rectangular bezel, and the first and second members thereof are fixed to the first and second members. A liquid crystal module according to claim 1, wherein each of the other screwing pieces of each corner portion is screwed to the frame frame by a locking screw. A liquid crystal panel, a rectangular frame-shaped bezel fitted to the outer periphery of the liquid crystal panel, a frame frame that sandwiches the liquid crystal panel between the bezel, and a back disposed in a space surrounded by the frame frame A linear light source for light; a reflection sheet that reflects light from the linear light source toward the liquid crystal panel; and a back plate that sandwiches the reflection sheet between the frame frame and is provided on the bezel. In the liquid crystal module formed by screwing the screw stopper piece protruding outward and the frame frame,
The bezel is divided into two L-shaped first and second members at two corners positioned diagonally, and is overlapped with each other at two divided ends of each member. A projecting piece for forming a screw retaining piece, the projecting piece forming the screw retaining piece has a screw insertion hole through which the retaining screw can be inserted, and the frame frame has a boss through which the retaining screw can be inserted. The back plate has a flange with a screw hole into which the set screw is screwed,
The set screw inserted into the screw insertion hole of the projecting piece forming the screw fixing piece and the boss of the frame frame is screwed into the screw hole of the flange of the back plate, and the screw fixing piece is attached to the frame frame. The liquid crystal module is characterized in that the first and second members are framed in a rectangular shape to form the frame-shaped rectangular bezel by screwing with the retaining screw . The projecting pieces that are overlapped with each other to form screw-fastening pieces are engaged with each other so that the first member and the second member are butted at right angles, and screw insertion holes that are opened in these projecting pieces are provided. The liquid crystal module according to claim 2 , wherein positioning means for aligning is provided.

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