JP2010243620A - Mounting structure of liquid crystal panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a liquid crystal panel that, when displacement of a liquid crystal panel to a liquid crystal panel housing occurs, easily detects the displacement while avoiding occurrence of a situation in which the liquid crystal panel is not installed in a regular position in the liquid crystal panel housing of a case as much as possible. <P>SOLUTION: In the mounting structure 1 of a liquid crystal panel, the liquid crystal panel 7 is installed in the liquid crystal panel housing 5 of the case 3, and the liquid crystal panel 7 is covered with a bezel 9, and then the bezel 9 is fixed in the case 3, so that the liquid crystal panel 7 is mounted to the case 3. The case 3 includes positioning bosses 11 for positioning the liquid crystal panel 7 and the bezel 9 in the regular positions. The bezel 9 includes positioning holes 13 through which the positioning bosses 11 are inserted while the bezel 9 is positioned in the regular position. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a liquid crystal panel mounting structure, and in particular, a liquid crystal panel is installed in a liquid crystal panel housing portion of a case, the liquid crystal panel is covered with a bezel, and the bezel is fixed to the case, whereby the liquid crystal panel is attached to the case. It relates to what to install.

  Conventionally, as a structure for attaching a liquid crystal panel to a case or the like, for example, a structure shown in Patent Document 1 is known.

  The attachment structure of the liquid crystal panel described in Patent Document 1 is an attachment structure for attaching a liquid crystal panel selected from a plurality of types of liquid crystal panels having different sizes to one type of housing.

  In the mounting structure of the liquid crystal panel described in Patent Document 1, there is a mounting tool prepared for each of a plurality of types of liquid crystal panels, and each of these mounting tools has a panel-side mounting part provided on the corresponding liquid crystal panel. And a second mounting portion formed according to the position of the housing side mounting portion provided in the housing.

  The selected liquid crystal panel has a structure in which the selected liquid crystal panel is attached to the housing using an attachment in which a first attachment portion is formed according to the position of the panel side attachment portion provided on the liquid crystal panel.

  According to such a mounting structure, even when the position of the panel side mounting portion provided on the liquid crystal panel does not match the position of the housing side mounting portion provided on the display unit housing, By using a fixture having a first mounting portion formed according to the position and shape and a second mounting portion formed according to the position and shape of the housing-side mounting portion, the panel is moved to the housing. Can be attached to.

  However, the conventional mounting structure requires a plurality of fixtures (the fixtures 500-1 and 500-2 shown in FIG. 3 of Patent Document 1), has a large number of parts, and is often used for mounting a liquid crystal panel. Of man-hours.

  Therefore, for example, when a liquid crystal display device is provided in an automobile instrument, the attachment as shown in FIG. 8 (a perspective view showing a conventional liquid crystal panel attachment structure) or FIG. 9 (an enlarged view of the IX portion in FIG. 8). Structure 200 is employed.

  In the mounting structure 200 shown in FIGS. 8 and 9, a liquid crystal panel storage unit (LCD storage unit) 204, a positioning restriction unit 206, and the like are provided in the case 202. The liquid crystal panel (LCD) 208 is housed in the liquid crystal panel housing portion 204 by being guided by the positioning restricting portion 206, the liquid crystal panel 208 is covered from the upper surface by the metallic bezel 210, and the case 202 is formed using the engaging claws 212. The liquid crystal panel 208 is fixed to the case 202 by engaging and fixing the bezel 210 to the case 202.

Japanese Patent No. 3356131

  However, in the structure shown in FIGS. 8 and 9, when the liquid crystal panel 208 is installed in the liquid crystal panel storage unit 204, there is a problem that the liquid crystal panel 208 may not fit in the normal position of the liquid crystal panel storage unit 204. . If the bezel 210 is placed with the liquid crystal panel 208 not placed in the proper position of the liquid crystal panel storage unit 204, there is a risk that a malfunction such as breakage of the liquid crystal panel 208 may occur.

  The present invention has been made in view of the above problems, and avoids the occurrence of a situation in which the liquid crystal panel is not installed at a proper position of the liquid crystal panel storage portion of the case as much as possible, and the liquid crystal panel with respect to the liquid crystal panel storage portion. An object of the present invention is to provide a mounting structure for a liquid crystal panel that can easily detect the positional deviation when the positional deviation occurs.

  According to the first aspect of the present invention, a liquid crystal panel is installed in a liquid crystal panel housing portion of a case, the liquid crystal panel is covered with a bezel, and the bezel is fixed to the case, whereby the liquid crystal panel is attached to the case In the mounting structure, the case is provided with a positioning boss for positioning the liquid crystal panel and the bezel at a normal position with respect to the liquid crystal panel storage portion, and the bezel is provided with the bezel. The liquid crystal panel mounting structure is provided with a positioning hole into which the positioning boss is inserted in a state where the positioning boss is inserted in a normal position with respect to the case.

  According to a second aspect of the present invention, in the liquid crystal panel mounting structure according to the first aspect, the liquid crystal panel is formed in a rectangular shape, and the bezel is formed in a rectangular ring shape that covers the periphery of the liquid crystal panel. The positioning boss includes a first boss for positioning the bezel in the horizontal direction of the liquid crystal panel storage unit and a second boss for positioning the bezel in the vertical direction of the liquid crystal panel storage unit. The positioning hole includes a first hole into which the first boss is inserted and a second hole into which the second boss is inserted. Each of the boss and each hole includes the liquid crystal This is a mounting structure for a liquid crystal panel provided at or near one corner of the panel storage and the bezel.

  According to a third aspect of the present invention, in the liquid crystal panel mounting structure according to the first or second aspect, the positioning boss is formed in a quadrangular prism shape, and the positioning hole can be fitted into the positioning boss. This is a structure for mounting a liquid crystal panel formed of a rectangular hole.

  According to the present invention, it is possible to avoid as much as possible the situation that the liquid crystal panel is not installed at the normal position of the liquid crystal panel storage part of the case, and when the liquid crystal panel is misaligned with respect to the liquid crystal panel storage part, It is possible to provide an attachment structure for a liquid crystal panel that can be easily detected.

1 is a perspective view illustrating a schematic configuration of a liquid crystal display device including a liquid crystal panel mounting structure 1 according to an embodiment of the present invention. It is an enlarged view of the II section in FIG. It is the figure which showed a part (positioning boss 11 and this periphery) of the liquid crystal panel storage part 5, and is the figure which looked at the liquid crystal panel storage part 5 from the direction of A1 in FIG. It is a figure which shows the state which installed the liquid crystal panel 7 in the regular position of the liquid crystal panel storage part 5 shown in FIG. FIG. 5 is a diagram illustrating a state in which a bezel 9 is installed at a normal position of the case 3 in the state illustrated in FIG. 4. It is a figure which shows the state which the liquid crystal panel 7 installed in case 3 has produced position shift. FIG. 7 is a diagram showing an aspect when the bezel 9 is further installed in the case 3 in the state shown in FIG. 6. It is a figure which shows the attachment structure of the conventional liquid crystal panel. It is an enlarged view of the IX part of FIG.

  FIG. 1 is a perspective view showing a schematic configuration of a liquid crystal display device having a liquid crystal panel mounting structure 1 according to an embodiment of the present invention, and FIG. 2 is an enlarged view of a portion II in FIG.

  FIG. 3 is a view showing a part of the liquid crystal panel storage 5 (positioning boss 11 and its periphery), and is a view of the liquid crystal panel storage 5 seen from the direction A1 in FIG.

  FIG. 4 is a diagram showing a state in which the liquid crystal panel 7 is installed at the regular position of the liquid crystal panel housing 5 shown in FIG. 3, and FIG. 5 is a diagram showing the state in which the bezel 9 is placed at the regular position of the case 3 in the state shown in FIG. It is a figure which shows the state installed.

  The liquid crystal panel mounting structure 1 is configured such that the liquid crystal panel 7 is installed in the liquid crystal panel housing 5 of the case 3. Then, the installed liquid crystal panel 7 is covered with a bezel 9 from the upper surface, and the bezel 9 is fixed to the case 3 so that the liquid crystal panel 7 is attached to the case 3.

  The case 3 is provided with positioning bosses (protrusions) 11 (11A, 11B) for positioning the liquid crystal panel (liquid crystal display panel) 7 and the bezel 9 in the normal position with respect to the liquid crystal panel housing portion 5. The positioning boss 11 is provided in the peripheral part of the liquid crystal panel 7 stored in the liquid crystal panel storage part 5 (for example, the peripheral part near the corner). That is, the positioning boss 11 is positioned slightly away from, for example, the corner of the liquid crystal panel 7 stored in the normal position of the liquid crystal panel storage unit 5, and the positioning boss 11 and the liquid crystal panel storage unit 5 are properly connected. The liquid crystal panel 7 housed in the position is not interfered with each other.

  The bezel 9 is provided with positioning holes (through holes) 13 (13A, 13B) into which the positioning boss 11 is inserted. The positioning boss 11 is inserted into the positioning hole 13 in a state in which the bezel 9 is positioned at a normal position with respect to the case 3 (liquid crystal panel housing 5) (from an assembled state for installation at the normal position). Finished and installed in a normal position).

  The liquid crystal panel 7 installed in the liquid crystal panel storage 5 is formed in a rectangular flat plate shape, and the bezel 9 is formed in a rectangular annular shape that covers the periphery of the liquid crystal panel 7. A rectangular hole formed in the center of the bezel forms an opening 15 for liquid crystal display.

  The positioning boss 11 is a first boss (first protrusion) 11 </ b> A that positions the liquid crystal panel 7 and the bezel 9 in the horizontal direction of the liquid crystal panel storage unit 5, and the liquid crystal panel in the vertical direction of the liquid crystal panel storage unit 5. 7 and a second boss (second protrusion) 11B for positioning the bezel 9. The positioning hole 13 includes a first hole (first through hole) 13A into which the first boss 11A is inserted, and a second hole (second through hole) 13B into which the second boss 11B is inserted. It is made up of.

  Each boss 11A, 11B is provided at one corner 21 of the liquid crystal panel storage 5 or in the vicinity thereof. Each hole 13A, 13B is provided at one corner 17 of the bezel 9 or in the vicinity thereof.

  Further, the positioning boss 11 (11A, 11B) is formed in a quadrangular prism shape, and the positioning hole 13 (13A, 13B) is a rectangular hole in which the positioning boss 11 (11A, 11B) can be engaged (fit). It is formed with.

  More specifically, the case 3 is formed, for example, by injection molding a resin. The liquid crystal panel storage 5 provided in the case 3 is formed by a recess provided in the case 3. The concave portion has a rectangular flat bottom portion 19. The horizontal dimension of the liquid crystal panel storage 5 is slightly larger than the horizontal dimension of the liquid crystal panel 7, and the vertical dimension of the liquid crystal panel storage 5 is also slightly larger than the vertical dimension of the liquid crystal panel 7. The quadrangular columnar bosses 11 </ b> A and 11 </ b> B are integrally formed with the main body of the case 3, and stand from the bottom 19 near the corner 21 at the bottom 19 of the liquid crystal panel storage 5.

  The first boss 11 </ b> A is provided at one end in the horizontal direction of the liquid crystal panel storage 5, and the second boss 11 </ b> B is provided at one end in the vertical direction of the liquid crystal panel storage 5. Further, since each boss 11A, 11B is provided at one corner 21 of the liquid crystal panel storage 5 or in the vicinity thereof, each boss 11A, 11B is close to each other.

  The bezel 9 is formed by, for example, press molding a metal. The first through hole 13A of the bezel 9 is provided in the vicinity of one end portion in the lateral direction of the bezel 9, and the second through hole 13B of the bezel 9 is provided in the vicinity of one end portion in the vertical direction of the bezel 9. It has been. Furthermore, since each through-hole 13A, 13B is provided at one corner 17 of the bezel 9 or in the vicinity thereof, each through-hole 13A, 13B is close to each other.

  The vertical and horizontal dimensions of the first through holes 13A of the bezel 9 are slightly larger than the vertical and horizontal dimensions of the first boss 11A. The vertical and horizontal dimensions of the second through hole 13B of the bezel 9 are also slightly larger than the vertical and horizontal dimensions of the second boss 11B.

  A plurality of engaging claws 23 having elasticity are provided on the periphery of the bezel 9. Each of these engaging claws 23 engages with an engaged portion (not shown) provided in the case 3 so that the bezel 9 is fixedly installed on the case 3.

  That is, when the bezel 9 is installed in the case 3 in a state where the liquid crystal panel 7 is installed in the regular position of the liquid crystal panel storage unit 5, the bosses 11A and 11B enter the through holes 13A and 13B of the bezel 9, The bezel 9 is positioned in the vertical and horizontal directions with respect to the case 3, and the engaging claw 23 comes into contact with a predetermined portion (a portion around the engaged portion) of the case 3 and elastically deforms. When the bosses 11A and 11B enter the through holes 13A and 13B of the bezel 9 and the engaging claws 23 are elastically deformed, and the bezel 9 is further moved toward the case 3, the engaging claws 23 are engaged. The bezel 9 is integrated with the case 3 so that the elastic deformation is released. In a state where the bezel 9 is installed and fixed at a proper position of the case 3, the bosses 11A and 11B completely enter the through holes 13A and 13B, and the upper surfaces 33 and 35 of the bosses 11A and 11B are 9 protrudes from the top surface.

  In a state where the bezel 9 is installed and fixed at a regular position of the case 3, the liquid crystal panel 7 is also sandwiched between the case 3 and the bezel 9 and is installed integrally with the case 3.

  The positioning by the bosses 11A and 11B entering the through holes 13A and 13B of the bezel 9 is performed as shown in FIG. That is, one of the four side surfaces of the quadrangular prism-shaped first boss 11A (a side surface facing the center side of the liquid crystal panel storage unit 5) 25 is a rectangular first provided on the bezel 9. In the case 3 in which the liquid crystal panel storage unit 5 is provided in the lateral direction of the liquid crystal panel storage unit 5 in contact with one side (surface located inside the bezel 9) 27 of the through hole 13A. On the other hand, the bezel 9 is positioned. Further, the second boss 11 </ b> B having a quadrangular prism shape enters the second through hole 13 </ b> B, and the bezel 9 with respect to the case 3 in which the liquid crystal panel storage unit 5 is provided in the vertical direction of the liquid crystal panel storage unit 5. Is positioned.

  Here, the state where the bosses 11A and 11B enter the through holes 13A and 13B and the bezel 9 is positioned with respect to the case 3 will be described in more detail with reference to FIG.

  The gaps G11 and G12 generated between the first boss 11A and the first through hole 13A in the vertical direction of the bezel 9 have a predetermined slight value. A gap G14 is formed only on one side between the first boss 11A and the first through hole 13A in the lateral direction of the bezel 9. That is, since one side surface 25 of the first boss 11A and one side 27 of the first through hole 13A are in contact with each other, the value of the gap G13 is “0”, but the bezel 9 The gap G14 located outside is a predetermined slight value.

  Further, the gaps G21, G22, G23, and G24 generated between the second boss 11B and the second through hole 13B in the vertical direction and the horizontal direction of the bezel 9 have predetermined small values.

  The values of the gaps G11, G12, G13, G14, G21, G22, G23, and G24 are shown as an example, and may be changed as long as the bezel 9 can be positioned with respect to the case 3. May be. For example, the values of the gaps G13 and G23 may be set to “0” and the other gaps may be set to predetermined small values. Further, for example, the values of the gaps G13, G14, G23, and G24 may be set to “0”, and the other gaps may be set to predetermined small values.

  The liquid crystal panel 7 is not positioned by contacting the bosses 11A and 11B (although the liquid crystal panel 7 is positioned without contact with the bosses 11A and 11B), the end of the liquid crystal panel 7 is not positioned. A configuration in which the liquid crystal panel 7 is positioned with respect to the liquid crystal panel storage portion 5 by bringing the end portions in the vicinity of one corner portion into contact with the bosses 11A and 11B may be possible.

  Further, a slope 29 is formed between the one side surface 25 of the first boss 11A and the upper surface 33 of the first boss 11A so as to be chamfered. The intersection angle between the slope 29 and one side surface 25 of the first boss 11A (intersection angle at the flesh of the first boss 11A) is the intersection angle between the slope 29 and the upper surface 33 of the first boss 11A (first The crossing angle at the flesh of the boss 11A). Similarly, a slope 31 is also formed between one side surface of the second boss 11B (side surface facing the center side of the liquid crystal panel housing 5) and the upper surface 35 of the second boss 11B. .

  Next, a procedure for installing the liquid crystal panel 7 and the bezel 9 on the case 3 will be described.

  First, as shown in FIG. 3, when nothing is installed in the liquid crystal panel housing 5 of the case 3 and the liquid crystal panel 7 is installed at a proper position of the liquid crystal panel housing 5, the state shown in FIG. Become. In the state shown in FIG. 4, the liquid crystal panel 7 is installed at a normal position of the liquid crystal panel storage 5, and the bosses 11 </ b> A and 11 </ b> B are positioned slightly away from one corner of the liquid crystal panel 7. is doing.

  Subsequently, as shown in FIG. 5, the bezel 9 is installed at a regular position of the case 3 so as to cover the liquid crystal panel 7. In the state shown in FIG. 5, the bosses 11 </ b> A and 11 </ b> B are inserted into the through holes 13 </ b> A and 13 </ b> B, and the engaging claws 23 of the bezel 9 are engaged with the engaged portions of the case 3.

  By the way, as shown in FIG. 6, the liquid crystal panel 7 is not installed in the regular position of the liquid crystal panel storage part 5 provided in the case 3, and the liquid crystal panel 7 rides on the bosses 11A and 11B and is inclined. If the bezel 9 is placed on the liquid crystal panel 7 or the case 3 in a state where the bezel is placed, as shown in FIG. Can not be.

  According to the liquid crystal panel mounting structure 1, since the positioning boss 11 is provided in the case 3, the liquid crystal panel 7 and the bezel 9 are not installed at the proper positions of the liquid crystal panel storage portion 5 provided in the case 3. Can be avoided as much as possible.

  In addition, since the positioning boss 11 is provided, when the liquid crystal panel 7 is installed in the liquid crystal panel storage unit 5, if the position of the liquid crystal panel 7 on which the corner of the liquid crystal panel 7 is placed on the positioning boss 11 is generated, The liquid crystal panel 7 is slanted, and it becomes easy to detect the displacement of the liquid crystal panel 7.

  Further, when the liquid crystal panel 7 is installed, if the liquid crystal panel 7 is displaced and the liquid crystal panel 7 is placed on the positioning boss 11, the liquid crystal panel 7 is inclined and the posture of the liquid crystal panel 7 becomes unstable. The liquid crystal panel 7 is easily removed from the positioning boss 11 and returned to the normal position.

  Further, when the liquid crystal panel 7 is installed, if the liquid crystal panel 7 is displaced and the liquid crystal panel 7 is placed on the positioning boss 11, the boss 11 is hidden, so that the positioning of the bezel 9 becomes impossible. Further, the engaging claw 23 of the bezel 9 does not match the engaged portion of the case 3, making it impossible to attach the bezel 9, and preventing damage to the liquid crystal panel 7 due to incorrect installation of the liquid crystal panel 7. Can do.

  Further, according to the liquid crystal panel mounting structure 1, each boss 11 </ b> A, 11 </ b> B is provided in the vicinity of one corner 21 of the liquid crystal panel storage 5, so that the liquid crystal panel is positioned at a normal position of the liquid crystal panel storage 5. 7 or when the bezel 9 is installed at a normal position of the case 3, the liquid crystal panel 7 and the bezel 9 can be positioned and installed without moving the line of sight, and the burden of assembly work is reduced.

  Further, according to the mounting structure 1 of the liquid crystal panel, the bosses 11A and 11B are formed in a rectangular shape and the through holes 13A and 13B are formed in a rectangular shape. The bezel 9 can be positioned by bringing them into contact with each other.

  Further, since the boss 11 is formed with the slope 29, the bezel 9 can be easily positioned with respect to the case 3 (insertion of the bosses 11A and 11B into the through holes 13A and 13B), and the liquid crystal panel storage portion 5, when the liquid crystal panel 7 is displaced and the end of the liquid crystal panel 7 is placed on the boss 11, the end of the liquid crystal panel 7 is detached from the boss 11, and the liquid crystal panel is accommodated. The liquid crystal panel 7 is easy to be installed at a proper position.

  In addition, by making the color of the case 3 and the color of the bezel 9 different from each other, the visibility of the through holes 13A and 13B and the bosses 11A and 11B is improved. The operation of inserting the bosses 11A and 11B is facilitated.

DESCRIPTION OF SYMBOLS 1 Liquid crystal panel mounting structure 3 Case 5 Liquid crystal panel storage part 7 Liquid crystal panel 9 Bezel 11 (11A, 11B) Positioning boss 13 (13A, 13B) Positioning hole

Claims (3)

In the mounting structure of the liquid crystal panel in which the liquid crystal panel is installed in the liquid crystal panel storage portion of the case, the liquid crystal panel is covered with a bezel, and the bezel is fixed to the case to attach the liquid crystal panel to the case.
The case is provided with a positioning boss for positioning the liquid crystal panel and the bezel at a normal position with respect to the liquid crystal panel storage portion,
A mounting structure for a liquid crystal panel, wherein the bezel is provided with a positioning hole into which the positioning boss is inserted in a state where the bezel is positioned at a normal position with respect to the case. In the mounting structure of the liquid crystal panel according to claim 1,
The liquid crystal panel is formed in a rectangular shape,
The bezel is formed in a rectangular ring shape that covers the periphery of the liquid crystal panel,
The positioning boss includes a first boss that positions the bezel in the lateral direction of the liquid crystal panel storage unit, and a second boss that positions the bezel in the vertical direction of the liquid crystal panel storage unit,
The positioning hole includes a first hole into which the first boss is inserted and a second hole into which the second boss is inserted.
The mounting structure for a liquid crystal panel, wherein the bosses and the holes are provided at one corner of the liquid crystal panel housing and the bezel or in the vicinity thereof. In the mounting structure of the liquid crystal panel according to claim 1 or 2,
The positioning boss is formed in a quadrangular prism shape,
The mounting structure for a liquid crystal panel, wherein the positioning hole is a rectangular hole into which the positioning boss can be fitted.

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