JP5812902B2 - Display device - Google Patents

Description

  The present invention relates to a display device such as a liquid crystal display device or a plasma display.

  Conventionally, a display panel mounting structure for mounting a display panel having a mounting portion fixed to the mounted portion on a housing having a mounted portion for mounting the display panel, the display panel and An attachment member that is interposed between and fixed to the housing is provided, and the attachment member is fixed to the attachment portion of the display panel and the panel attachment portion that is fixed to the attachment portion of the display panel. In the display panel mounting structure including the housing fixing portion, the attached portion of the housing is a screw hole through which a screw is inserted, and the housing fixing portion includes the screw of the housing A housing fixing hole which is a hole through which a screw for fixing the housing fixing portion and the housing is inserted is provided at a position facing the hole, and the panel fixing portion includes the mounting portion of the display panel. The panel fixing portion and the display panel at a position opposite to each other. A panel fixing hole that is a hole through which a screw for fixing the panel is inserted is provided, and a plurality of types of display panels for fixing a plurality of types of display panels having different positions of the mounting part are provided on the panel fixing part of the mounting member. A display panel mounting structure having a panel fixing hole is disclosed (for example, see Patent Document 1).

  In addition, a liquid crystal display element mounting structure used for mounting a liquid crystal display element to a cabinet having a liquid crystal display element mounting part (boss) at a position not compatible with a cabinet mounting part (screw hole) provided in the liquid crystal display element ( Mounting hole conversion member), which is mounted between the liquid crystal display element and the cabinet and adapts the position of the cabinet mounting portion (screw hole) and the liquid crystal display element mounting portion (boss). The mounting structure (mounting hole converting member) includes a first fixing portion that is fixed to the liquid crystal display element, and a second fixing portion that is fixed to the cabinet. The liquid crystal display element is mounted when the liquid crystal display element is aligned with the cabinet in a state where the first fixing portion is fixed to the liquid crystal display element with a screw through a screw hole. At a position corresponding to (the boss), attachment structure of the liquid crystal display device having a mounting hole screw fitting (mounting hole converting member) is disclosed (e.g., see Patent Document 2). In mounting the mounting hole converting member on the liquid crystal display element, the mounting hole converting member is positioned with respect to the liquid crystal element by using positioning pins and positioning holes provided in the mounting hole converting member.

JP 2009-169034 A (Claims) JP 2000-010082 (Claims, paragraph 0034)

  However, according to the conventional technique disclosed in Patent Document 1, the panel fixing hole provided in the panel fixing portion of the mounting member and the housing fixing hole provided in the housing fixing portion are caused by an inter-hole pitch error. In order to avoid interference with the screw, the hole diameter is made larger than the outer diameter of the screw. For this reason, there is a gap between the panel fixing hole and the casing fixing hole and the screw, and there is a problem that the display panel is attached to the casing by being shifted vertically and horizontally with respect to the gap.

  Further, according to the conventional technique disclosed in Patent Document 2, when the mounting hole converting member is mounted on the liquid crystal display element, the mounting to the liquid crystal element is performed using a positioning pin and a positioning hole provided in the mounting hole converting member. The hole conversion member is positioned. Therefore, there is a problem that a positioning pin is required in addition to the screw, and the manufacturing process and component management become complicated.

  The present invention has been made in view of the above, and is a display device in which a display panel (display device) is less likely to be displaced vertically and horizontally with respect to a housing, and a manufacturing process and component management are not complicated. The purpose is to obtain.

  In order to solve the above-described problems and achieve the object, the present invention has a display device having mounting portions on the left and right end edges, positioning protrusions on the left and right edges, and a chassis mounting section on the upper and lower edges. A panel housing, a device fixing portion fixed to the mounting portion of the display device, and a chassis fixing portion provided with a positioning hole and a chassis fastening portion that fits in a positioning protrusion of the panel housing without any gap, A mounting bracket that fixes the display device to the device fixing portion and the positioning hole is fitted to a positioning projection of the panel housing to position the display device on the panel housing, and a chassis of the mounting bracket on the left and right edges A fastening portion is fastened, a top and bottom edge portion is fixed to a chassis mounting portion of the panel housing, and the chassis covers the display device from the back side.

  According to the present invention, since the panel housing has the positioning projection and the mounting bracket has the positioning hole that fits in the positioning projection without a gap, the display device is less likely to be displaced vertically and horizontally with respect to the panel housing, There is an effect that a display device in which the manufacturing process and component management are not complicated can be obtained.

1-1 is a perspective view showing Embodiment 1 of a display device according to the present invention. FIG. 1-2 is a perspective view of a state in which a cover showing the display device of Embodiment 1 is removed. FIG. FIG. 2-1 is a perspective view illustrating the panel housing according to the first embodiment. FIG. 2B is an enlarged view of a part A in FIG. 2A showing a screw base of the panel housing of the first embodiment. FIG. 2-3 is an enlarged view of a portion B in FIG. 2-1 showing the positioning protrusions of the panel housing of the first embodiment. FIG. 3A is a perspective view of the display device according to the first embodiment. FIG. 3-2 is an enlarged view of a portion C in FIG. 3A illustrating a mounting hole of the display device of the first embodiment. FIG. 4A is a perspective view of the mounting bracket of the first embodiment. FIG. 4-2 is a perspective view illustrating a mounting state of the mounting bracket according to the first embodiment. FIG. 5 is a perspective view showing the chassis of the first embodiment. FIG. 6 is a perspective view of the display device according to the second embodiment of the present invention with the cover removed. FIG. 7-1 is a perspective view illustrating the panel housing of the second embodiment. FIG. 7-2 is an enlarged view of a portion D in FIG. 7-1 showing the alignment protrusion of the panel housing of the second embodiment. FIG. 8A is a perspective view of the display device according to the second embodiment. FIG. 8-2 is an enlarged view of a portion E in FIG. 8-1 showing the mounting holes of the display device of the second embodiment. FIG. 9 is a perspective view showing the mounting bracket of the second embodiment. FIG. 10 is a perspective view showing the mounting bracket of the third embodiment.

  Embodiments of a display device according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
1-1 is a perspective view showing Embodiment 1 of a display device according to the present invention, and FIG. 1-2 is a perspective view of the display device according to Embodiment 1 with a cover removed. As shown in FIGS. 1-1 and 1-2, the display device 91 according to the first embodiment includes a rectangular panel housing 1 having low side walls 1g, 1h, 1i, and 1j on the outer periphery, and a display device 2. A printed circuit board 5 on which a control circuit to be controlled is mounted is mounted, and a rectangular plate-like chassis 4 fixed to the panel housing 1 with screws so as to cover the panel housing 1 from the back side, and mounting brackets 3 on the left and right sides (FIG. 4). -1) is fixed and the display device 2 positioned and fixed on the panel housing 1 via the mounting bracket 3 inside the chassis 4 and the above-mentioned members of the display device 91 are covered, and the outer periphery of the panel housing 1 And a rectangular box-shaped cover 7 screwed to each other.

  FIG. 2-1 is a perspective view showing the panel housing of the first embodiment, and FIG. 2-2 is an enlarged view of a part A in FIG. 2A showing the screw base of the panel housing of the first embodiment. FIG. 2-3 is an enlarged view of a portion B in FIG. 2-1 showing the positioning protrusion of the panel housing of the first embodiment.

  As shown in FIGS. 2-1 to 2-3, the panel housing 1 is an attachment frame for attaching the display device 91 of Embodiment 1 to a control panel or the like (not shown), and is made of a rigid material such as synthetic resin or metal. It is formed in the shape of a frame by the material having The panel housing 1 has a rectangular opening 1 f that exposes the screen of the display device 2, left and right side walls 1 g and 1 h surrounding the side of the display device 2, and upper and lower side walls 1 i and 1 j. .

  A plurality of screw bases 1a as chassis mounting portions for screwing the chassis 4 are provided inside the upper and lower side walls 1i, 1j as upper and lower edges of the panel housing 1, respectively. A plurality of positioning protrusions 1b for positioning the mounting bracket 3 are provided on the inner sides of the left and right side walls 1g and 1h as the left and right edge portions of the panel housing 1, respectively.

  FIG. 3A is a perspective view illustrating the display device according to the first embodiment, and FIG. 3B is an enlarged view of a portion C in FIG. 3A illustrating attachment holes of the display device according to the first embodiment. As shown in FIGS. 3A and 3B, the display device 2 is formed in a rectangular plate shape, and four pieces as mounting portions for mounting the display device 2 to the mounting bracket 3 are provided on the left and right edge portions. The mounting holes 2d and four mounting holes 2dd having a large inter-hole pitch are also provided as mounting portions. The mounting hole 2d or the mounting hole 2dd is used according to the pitch between the holes of the device mounting screw holes 3d (see FIG. 4A) of the mounting bracket 3.

  The pitch between the mounting holes 2d (or the mounting holes 2dd) varies depending on the display device, and the pitch between the mounting holes 2d (the mode of the mounting portion) varies depending on the manufacturer even if the display device has the same size. There are many cases. The rectangular frame 2 f of the display device 2 is formed of a thin metal plate and is electrically connected to the ground of the I / F circuit built in the display device 2.

  FIG. 4-1 is a perspective view showing the fixing bracket of the first embodiment, and FIG. 4-2 is a perspective view showing the mounting state of the fixing bracket of the first embodiment. As shown in FIGS. 4A and 4B, the mounting bracket 3 is made of a highly conductive metal and has an angle shape having a chassis fixing portion 3f and a hanging portion 3g perpendicular to the chassis fixing portion 3f. Is formed. Flange portions 3h that are bent by 90 ° on the opposite side of the chassis fixing portion 3f are formed at the edges of both ends of the hanging portion 3g.

  Chassis fastening screw holes 3c as chassis fastening portions are provided at both ends of the chassis fixing portion 3f, and positioning that fits into the positioning protrusions 1b of the panel housing 1 without any gaps near the center of the chassis fastening screw holes 3c. Positioning long hole 3bb which fits without hole 3b and the left-right direction is provided. The flange portion 3h is provided with a device attachment screw hole 3d as a device fixing portion for attaching the display device 2 via the attachment hole 2d and the set screw 9d. Although not shown in the drawing, the width of the flange portion 3h is widened, and the gap between the holes as a plurality of types of device fixing portions corresponding to the pitch between the mounting holes 2d of the display device 2 that varies depending on the manufacturer (aspect of the mounting portion). A plurality of types of device mounting screw holes 3d having different pitches are provided.

  FIG. 5 is a perspective view showing the chassis of the first embodiment. As shown in FIG. 5, the chassis 4 is formed in a rectangular shape by a metal plate, and the upper and lower edges are bent to increase the bending rigidity. The chassis 4 has a plurality of housing mounting holes 4a fixed to the chassis mounting portion (screw base 1a) of the panel housing 1 at the upper and lower edges, and the chassis fastening portion of the mounting bracket 3 at the left and right edges. Each has a plurality of metal fitting mounting holes 4c to which (chassis fastening screw holes 3c) are fastened. The chassis 4 has a plurality of board mounting bases 4 f for mounting the printed circuit board 5.

  When assembling the display device 91 according to the first embodiment, the panel housing 1 is placed on the assembly table, and the positioning hole 3b and the positioning long hole 3bb of the mounting bracket 3 are fitted to the positioning projection 1b of the panel housing 1, The mounting bracket 3 is accurately positioned on the panel housing 1. Next, the mounting hole 2d of the display device 2 is aligned with the device mounting screw hole 3d of the mounting bracket 3, and the display device 2 is screwed onto the flange surface 3h of the mounting bracket 3 with a set screw 9d.

  Next, the chassis 4 on which the printed circuit board 5 is mounted on the board mounting base 4f is screwed to the chassis mounting screw hole 3c of the mounting bracket 3 through the bracket mounting hole 4c, and the panel housing is mounted through the casing mounting hole 4a. Screw on the screw base 1a of the body 1. The display device 2 is screwed to the panel housing 1 via the mounting bracket 3 and the chassis 4.

  The chassis 4 is a metal plate having a large area, and is electrically connected to the ground of the display device 2 and covers the display device 2 from the back side, thereby improving the noise resistance of the display device 2 and the display device 91.

  In the display device 91 according to the first embodiment, the panel housing 1 has the positioning protrusion 1b, and the mounting bracket 3 has the positioning hole 3b that fits into the positioning protrusion 1b without a gap. The manufacturing process and parts management are not complicated.

Embodiment 2. FIG.
FIG. 6 is a perspective view of the display device according to the second embodiment of the present invention with the cover removed. As shown in FIG. 6, the display device 92 according to the second embodiment is mounted with a rectangular panel housing 21 having low side walls 21 g, 21 h, 21 i, 21 j on the outer periphery and a control circuit for controlling the display device 22. A rectangular board-like chassis 24 mounted with a printed circuit board 25 and screwed to the panel casing 21 so as to cover the panel casing 21 from the back side, and mounting brackets 23 (see FIG. 9) on the left and right are fixed. A rectangular box-shaped cover that covers the display device 22 positioned on the panel housing 21 via the mounting bracket 23 and the above-described member of the display device 92 and is screwed to the outer periphery of the panel housing 21. A cover (not shown).

  FIG. 7-1 is a perspective view showing the panel housing of the second embodiment, and FIG. 7-2 is an enlarged view of the D part of FIG. 7-1 showing the alignment protrusion of the panel housing of the second embodiment. It is. As shown in FIGS. 7A and 7B, the panel housing 21 of the second embodiment is a mounting frame for mounting the display device 92 of the second embodiment on a control panel or the like (not shown). It is formed in a frame shape from a material having rigidity such as metal or metal. The panel housing 21 includes a rectangular opening 21f that exposes the screen of the display device 22, left and right side walls 21g and 21h that surround the side of the display device 22, and upper and lower side walls 21i and 21j. .

  A plurality of screw bases 21 a as chassis mounting portions for screwing the chassis 24 are provided inside the upper and lower side walls 21 i and 21 j as upper and lower edges of the panel housing 21. A plurality of positioning projections 21b for positioning the mounting bracket 23 (see FIG. 9) are provided inside the left and right side walls 21g and 21h as the left and right edge portions of the panel housing 21, respectively. The positioning protrusion 21b of the panel housing 21 of the second embodiment is provided at a higher position than the positioning protrusion 1b of the panel housing 1 of the first embodiment.

  FIG. 8A is a perspective view illustrating the display device according to the second embodiment, and FIG. 8B is an enlarged view of a portion E in FIG. 8A illustrating attachment holes of the display device according to the second embodiment. As shown in FIGS. 8A and 8B, the display device 22 according to the second embodiment is formed in a rectangular plate shape, and the rectangular frame 22f of the display device 22 is formed of a thin metal plate. The device 22 is electrically connected to the ground of the I / F circuit built therein.

  Unlike the display device 2 of the first embodiment, the display device 22 of the second embodiment has mounting screw holes 22d as mounting portions at the left and right edge portions for mounting the display device 22 to the mounting bracket 23. 22f is provided on the side surface. The positions where the mounting screw holes 22d are provided vary depending on the display device, and even in the case of a display device of the same size, the pitch between the mounting screw holes 22d (mode of the mounting portion) is often different.

  FIG. 9 is a perspective view showing the mounting bracket of the second embodiment. As shown in FIG. 9, the mounting bracket 23 of the second embodiment is made of a highly conductive metal and is formed in an angle shape having a chassis fixing portion 23f and a hanging portion 23g perpendicular to the chassis fixing portion 23f. Has been.

  The chassis fixing portion 23f is fitted with a plurality of chassis mounting screw holes 23c as chassis fastening portions, a positioning hole 23b that fits into the positioning projection 21b of the panel housing 21 without gaps, and a right and left direction without gaps. Positioning long holes 23bb are provided for absorbing pitch errors between the protrusions 21b. The hanging portion 23g is provided with a device attachment hole 23d and a device attachment long hole 23dd as a device fixing portion for attaching the display device 22 via the attachment screw hole 22d.

  Since the chassis 24 of the second embodiment is the same as the chassis 4 of the first embodiment, detailed description thereof is omitted. When assembling the display device 92 according to the second embodiment, first, the mounting screw hole 22d of the display device 22 is aligned with the device mounting hole 23d and the device mounting long hole 23dd of the mounting bracket 23, and the mounting bracket 23 of the display device 22 is aligned. Screw on the side of the frame 22f.

  Next, the panel casing 21 is placed on the assembly table, the positioning holes 23b and the positioning long holes 23bb of the mounting bracket 23 are fitted into the positioning projections 21b of the panel casing 21, and the display device 22 and the mounting bracket 23 are connected to the panel casing. Position precisely on the body 21.

  Next, the chassis 24 on which the printed circuit board 25 is mounted is screwed to the chassis mounting screw hole 23c of the mounting bracket 23 via the bracket mounting hole 24c (see FIG. 6), and the housing mounting hole 24a (see FIG. 6) is secured. And screwed to the screw base 21a (see FIG. 7-1) of the panel housing 21. The display device 22 is screwed to the panel housing 1 via the mounting bracket 23 and the chassis 24.

  The chassis 24 is a metal plate having a large area, and is electrically connected to the ground of the display device 22 and covers the display device 22 from the back side, thereby improving the noise resistance of the display device 22 and the display device 92. .

  In the display device 92 according to the second embodiment, the panel housing 21 has the positioning protrusion 21b, and the mounting bracket 23 has the positioning hole 23b that fits into the positioning protrusion 21b without a gap. The manufacturing process and parts management are not complicated.

Embodiment 3 FIG.
FIG. 10 is a perspective view showing the mounting bracket of the third embodiment. As shown in FIG. 10, the mounting bracket 33 of the third embodiment is different from the mounting bracket 23 of the second embodiment in addition to the device mounting hole 23d and the device mounting long hole 23dd corresponding to the display device 22, The display device 22 is that a device mounting hole 33d and a device mounting long hole 33dd (device fixing portion) corresponding to display devices having different mounting positions (mounting portions) of the mounting screw holes 22d are provided.

  Other parts of the mounting bracket 33 of the third embodiment are not different from the mounting bracket 23 of the second embodiment. According to the mounting bracket 33 of the third embodiment, it is possible to deal with a plurality of types of display devices in which the mounting screw holes 22d are disposed at different positions (aspects of the mounting portion).

1,21 Panel housing 1a, 21a Screw base (chassis mounting part)
1b, 21b Positioning protrusion 1f, 21f Opening 1g, 1h, 1i, 1j, 21g, 21h, 21i, 21j Side wall 2, 22 Display device 2d, 2dd Mounting hole (mounting portion)
22d Mounting screw hole (Mounting part)
2f, 22f Frame 3, 23, 33 Mounting bracket 3b, 23b Positioning hole 3bb, 23bb Positioning long hole (positioning hole)
3c, 23c Chassis mounting screw hole (chassis fastening part)
3d Device mounting screw hole (device fixing part)
23d, 33d Device mounting hole (device fixing part)
23dd, 33dd Device mounting slot (device fixing part)
3f, 23f Chassis fixing portion 3g, 23g Hanging portion 3h Flange portion 4, 24 Chassis 4a, 24a Housing mounting hole 4c, 24c Metal mounting hole 4f Substrate mounting base 5, 25 Printed circuit board 7 Cover 9d Set screw 91, 92 Display device

Claims (3)

A display device having mounting portions on left and right edges;
A panel housing having positioning protrusions on the left and right edges, and a chassis mounting portion on the upper and lower edges;
Mounting of the display device and the chassis fixing portion that extends along the left and right edge portions of the panel housing and is fitted with positioning holes and a chassis fastening portion that fit in the positioning protrusions of the panel housing without any gaps The display device is fixed to the device fixing portion, and the positioning hole is fitted to a positioning protrusion of the panel casing to position the display device on the panel casing. Mounting brackets to be
And a chassis for covering the front Symbol display device from the back side,
The chassis has a plurality of bracket mounting holes that are screwed to the chassis fastening portion of the mounting bracket at the left and right ends, and a plurality of casings that are screwed to the chassis mounting portion of the panel casing at the upper and lower edges. A display device having a body mounting hole and fixing the positioned display device to the panel housing via the mounting bracket .   The display device is a side mount type, the mounting portion of the display device is a mounting screw hole provided on the left and right side surfaces of the display device, and the device fixing portion of the mounting bracket is provided on the device mounting surface. The display device according to claim 1, wherein the display device is a device mounting hole corresponding to the mounting screw hole.   The display device according to claim 1, wherein the device fixing portion of the mounting bracket has a plurality of types of device fixing portions corresponding to a plurality of types of display devices having different mounting portions.