JP2013195618A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device capable of improving vibration proof of the vicinity of a center of a display panel.SOLUTION: The display device comprises: a facing member 5 having an opening part 51; a display panel 2 visually recognized from the opening part 51; and a mounting member 6 covering the back face of the display panel 2. The display panel 2 is supported by a buffer member 3, and stored between the facing member 5 and the mounting member 6. The buffer member 3 includes two pairs of facing peripheral wall parts 31a-31d, a storage part 32 enclosed with the peripheral wall parts 31a-31d, and a bottom part 33 perpendicularly protruding in the direction of the storage part 32 from the peripheral wall parts 31a-31d. The bottom part 33 has a transverse piece 34 longitudinally extending in the vicinity of a back-face center of the display panel 2.

Description

  The present invention relates to a display device mounted on, for example, an instrument device of an automobile or a motorcycle, and more particularly to a vibration-proof structure of a display panel.

  As this type of display device, for example, a display device described in Patent Document 1 below is known. This display device is a buffer member interposed between a functional component and a support that supports the functional component, and cushions vibrations and shocks transmitted to the functional component by a plurality of buffer members arranged in series. Can do.

JP 2010-257504 A

  However, since the display device described in Patent Document 1 supports functional parts in one direction, vibration resistance to the front, rear, left and right is weak, and vibration is applied because the central part of the functional member is not supported. In this case, there is a problem that the functional parts are distorted.

  Accordingly, the present invention focuses on the above-described problems and aims to provide a display device that can improve the vibration resistance at the center of the display panel.

The present invention includes a facing member having an opening,
A display panel visible from the opening;
An attachment member that covers a back surface of the display panel, and the display panel is held by a buffer member, and is housed between the turning member and the attachment member.
The buffer member includes two pairs of peripheral wall portions facing each other, a storage portion surrounded by the peripheral wall portion, and a bottom surface portion protruding from the peripheral wall portion toward the storage portion,
Since the bottom surface portion has a horizontal piece extending in the longitudinal direction near the center of the back surface of the display panel, vibration resistance near the center of the back surface of the display panel can be improved.

  Further, according to the present invention, the horizontal piece is provided with a convex pressing portion on the side facing the mounting member, whereby vibration resistance near the center of the back surface of the display panel can be improved.

  Further, according to the present invention, since the buffer member is made of a plurality of elastic materials having different hardnesses, vibration resistance near the center of the back surface of the display panel can be improved.

  According to the invention, the peripheral wall portion is made of an elastic material having a hardness higher than that of the elastic member forming the bottom surface portion, and the side surface of the display panel is supported by the peripheral wall portion made of an elastic member having a high hardness. Since the back surface of the display panel is supported by an elastic member having a lower hardness than the peripheral wall portion, vibration transmitted to the functional component can be dispersed.

  According to the present invention, the bottom portion has an engaging portion with which the horizontal piece is engaged, so that the horizontal piece is positioned at the center of the back surface of the display panel, and the vibration resistance near the center of the back surface of the display panel. Can be improved.

  According to the present invention, the vibration resistance at the center of the display panel can be improved.

1 is a cross-sectional view of a display device according to an embodiment of the present invention (hatching omitted). The front view of the buffer member in the display apparatus by the embodiment. AA sectional drawing of FIG. The rear view of the buffer member in the display apparatus by the embodiment. The perspective view of the buffer member in the display apparatus by the embodiment.

  An embodiment of the present invention will be described with reference to FIGS.

  The display device mainly includes an upper case 1, a display panel 2, a buffer member 3, a circuit board 4, a turning member 5, a mounting member 6, and a lower case 7.

  The upper case 1 is made of an impermeable synthetic resin, and a transmissive front glass 11 is fitted into the see-through window so that the display panel 2 housed therein can be seen through.

  Although not shown, the display panel 2 is formed of a liquid crystal panel in which liquid crystal molecules are sealed between a pair of glass substrates, for example, and displays vehicle information such as a vehicle travel distance and an outside temperature. The display panel 2 is housed in a metal cell case 21, and has a hard circuit board 22 made of, for example, a glass epoxy or paper phenol base material, on which circuit patterns and circuit components (not shown) are mounted. ing. Further, a connector (not shown) is mounted on the back side of the circuit board 22, and the display panel 2 and the circuit board 22 are electrically connected by FPC or the like.

  The buffer member 3 is made of, for example, a black synthetic rubber having flexibility, and as shown in FIG. 2, as shown in FIG. 2, two facing peripheral wall portions (first to first walls) for enclosing the periphery of the display panel 2 in a U-shaped cross section. 4 peripheral wall portions 31a to 31d), the storage portion 32 surrounded by the first to fourth peripheral wall portions 31a to 31d, and the first to fourth peripheral wall portions 31a to 31d vertically project toward the storage portion 32, It is comprised from the bottom corner | angular part 33a-33d provided in the connection location of each surrounding wall part.

  Further, the buffer member 3 has a horizontal piece 34 extending in the longitudinal direction near the center of the back surface of the display panel 2 and an engaging portion 35 to which the horizontal piece 34 is engaged. In the present embodiment, the engaging portion 35 that is formed to protrude substantially vertically from the second peripheral wall portion 31b is positioned at substantially the same height as the lateral piece 34 that is formed to protrude substantially vertically from the first peripheral wall portion 31a. The locking piece 342 provided at the end of the horizontal piece 34 has a circular shape so as to match the shape (U-shape) of the engaging portion 35. Note that the shapes of the engaging portion 35 and the engaging piece 342 can be arbitrarily determined as long as the engaging portion 35 and the engaging piece 342 can be engaged. Since the engaging portion 35 is provided at the end of the horizontal piece 34, a large opening can be taken when the display panel 2 is fitted into the storage portion 32, so that the working efficiency is good.

As shown in FIG. 4, the horizontal piece 34 includes a plurality of convex pressing portions 341 on the side facing the mounting member 6. The pressing portion 341 comes into contact with the mounting member 6 by being pressed when the turning member 5 and the mounting member 6 are screwed to the lower case 7. Between the attachment member 6 and the display panel 2, a portion supported or abutted by the buffer member 2, a bottom surface portion of the buffer member 2, a bottom corner portion 33, a lateral piece 34, an engagement portion 35, etc. are formed. The space part which is not made arises and the influence by vibration can be disperse | distributed.

The buffer member 3 can also be formed from a plurality of elastic materials having different hardnesses. In that case, the peripheral wall portion 31 is preferably formed from an elastic material having a higher hardness than the elastic member forming the bottom surface portion 33, and the side surface of the display panel 2 is supported by the peripheral wall portion 31 formed of an elastic member having a high hardness. Since the back surface of the display panel 2 is supported by an elastic member having a lower hardness than the peripheral wall portion 31, the vibration applied to the display device is dispersed by the elastic member forming the bottom surface portion 33, and the vibration is not easily transmitted to the display panel 2. can do.

  The facing member 5 is made of an impermeable synthetic resin and covers the area other than the visual recognition area of the display panel 2 housed in the opening 51 buffer member 3, has a screw hole (not shown), It is fixed to the circuit board 4 by a method such as fastening.

  The attachment member 6 is a metal plate material, and is disposed in the lower case 7 and fixed by screws 52 or the like.

  The lower case 7 is formed of an impermeable synthetic resin, and has a screw hole (not shown) in which the facing member 5 and the attachment member 6 are integrally fixed by screwing or the like.

  In the display device configured as described above, the display panel 2 is press-fitted and disposed in the storage portion 32 in a state where the engagement piece 342 of the buffer member 3 is removed from the engagement portion 35. Further, the buffer member 3 in which the display panel 2 is accommodated is press-fitted and arranged in the turning member 5, and the screw hole provided in the turning member 5 and the mounting member 6 and the lower case 7 are screwed, so that the pressing portion 341 The center of the back surface of the display panel 2 can be supported by being pressed against the attachment member 6.

  As described above, the present embodiment includes the turning member 5 having the opening 51, the display panel 2 visually recognized from the opening 51, and the mounting member 6 that covers the back surface of the display panel 2. In the display device supported by the buffer member 3 and housed between the facing member 5 and the mounting member 6, the buffer member 3 includes two pairs of peripheral wall portions 31a to 31d and the peripheral wall portions 31a to 31a facing each other. The housing part 32 surrounded by 31d and a bottom surface part 33 projecting vertically from the peripheral wall parts 31a to 31d in the direction of the housing part 32 are provided. The bottom surface part 33 extends in the longitudinal direction near the center of the back surface of the display panel 2. By having the horizontal piece 34, the back side of the display panel 2 is supported by the horizontal piece 34, so that a display device with improved vibration resistance near the center of the back side of the display panel 2 can be provided.

  Moreover, in this embodiment, the horizontal piece 34 is provided with the convex pressing part 341 on the side facing the mounting member 6, so that when the turn-back member 5 and the mounting member 6 are screwed together, the display panel 2, the pressing portion 341 comes into contact with the vicinity of the center of the back surface of the display panel 2, so that the center portion can be supported from the back surface of the display panel, and a display device with improved vibration resistance near the center of the back surface of the display panel 2 can be provided. .

  Further, in the present embodiment, the buffer member 3 is made of a plurality of elastic materials having different hardnesses, so that the hardness of the pressing portion 341 is made lower than the hardness of the peripheral wall portion 31 to disperse the vibration transmitted to the display panel 2. Can do.

  In the present embodiment, the peripheral wall portion 31 is made of an elastic material having higher hardness than the elastic member forming the bottom surface portion 33, so that the side surface of the display panel 2 is supported by the peripheral wall portion 31 made of an elastic member having high hardness. Since the back surface of the display panel 2 is supported by the bottom surface portion 33 made of an elastic member having a lower hardness than the peripheral wall portion 31, the vibration applied to the display device is dispersed by the elastic member forming the bottom surface portion 33, and the display panel 2. Vibration can be made difficult to be transmitted to.

  Further, in the present embodiment, the bottom surface portion 33 has the engaging portion 35 with which the horizontal piece 34 is engaged, so that the horizontal piece 34 is positioned at the center of the back surface of the display panel 2, and the back surface of the display panel 2. The vibration resistance near the center can be improved.

DESCRIPTION OF SYMBOLS 1 Upper case 2 Display panel 3 Buffer member 5 Look-back member 6 Mounting member 7 Lower case 31 Peripheral wall part 31a-31d 1st peripheral wall part to 4th peripheral wall part 32 Storage part 33 Bottom face part 33a-33d Bottom face corner | angular part 34 Side piece 35 engaging portion 341 pressing portion 342 engaging portion

Claims (5)

A facing member having an opening;
A display panel visible from the opening;
An attachment member that covers a back surface of the display panel, and the display panel is held by a buffer member, and is housed between the turning member and the attachment member.
The buffer member includes two pairs of peripheral wall portions facing each other, a storage portion surrounded by the peripheral wall portion, and a bottom surface portion protruding from the peripheral wall portion toward the storage portion,
The display device according to claim 1, wherein the bottom surface portion has a horizontal piece extending in the longitudinal direction near the center of the back surface of the display panel. The display device according to claim 1, wherein the horizontal piece includes a convex pressing portion on a side facing the mounting member. The display device according to claim 1, wherein the buffer member is made of a plurality of elastic materials having different hardnesses. The display device according to claim 1, wherein the peripheral wall portion is made of an elastic material having a hardness higher than that of an elastic member forming the bottom surface portion. The display device according to claim 1, wherein the bottom surface portion has an engaging portion with which the horizontal piece is engaged.

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