JP2013174777A - Electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system capable of suppressing display unevenness caused by an outer force in a display device which is supported via a movable mechanism to a device body.SOLUTION: An electronic device includes: a display module 21 having a protection plate 21b; a front cover 22 which has an opening portion corresponding to a display area of a display panel 21a and in which the protection plate 21b is fixedly attached around the opening portion on the rear face side; holding members 24a and 28 for abutting, via an elastic member 25, the protection plate 21b in such a state as not to contact with the display panel 21a so as to protect the display module 21 against the front cover 22; and a rear cover 27 which is fixed to the front cover 22 along with the holding member 28 in such a state that the display module 21 and the holding members 24a and 28 are accommodated in a space formed between the front cover 22 and the rear cover 27. A gap is formed between the holding members 24a and 28 and an attaching member for attaching the rear cover 27 so that when an outer force is applied to the protection plate 21b or the front cover 22, the holding members 24a and 28 are displaced by an amount of the gap to thereby abut the rear cover 27 so as to receive the outer force.

Description

  The present invention relates to an electronic device such as a digital camera, a digital video camera, a PDA, a portable display device, a portable PC, and a mobile phone, and more particularly to an electronic device in which a display device is supported by a movable mechanism with respect to the device body. About.

  Some display devices mounted on electronic devices such as digital cameras have a transparent protective plate disposed on the front surface of the display panel to prevent damage to the display panel and display unevenness due to external force. However, when the protective plate is disposed on the front surface of the display panel, outdoor visibility is reduced by the reflected light from the protective plate and the display panel. Therefore, by integrating the display panel and the protective plate through an adhesive such as a transparent resin into a display module, the interface with the air layer is reduced to suppress reflection of external light and increase outdoor visibility. Things are also done.

  However, when the display panel and the protective plate are integrated through an adhesive such as a transparent resin to form a display module, the external force applied around the protective plate is directly transmitted to the display panel via the transparent resin. As a result, the display panel is deformed and display unevenness is likely to occur.

  Therefore, a structure for holding the display module is provided by arranging the periphery of the protective plate of the display module on the non-exterior surface side of the exterior cover and fixing the holding member to the exterior cover via the elastic member from the back side of the display module. It has been proposed (Patent Document 1).

JP 2011-39422 A

  However, the display device disclosed in Patent Document 1 has the following problems when applied to an electronic device that supports the display device via a movable mechanism such as a hinge mechanism with respect to the device body.

  That is, in such an electronic device, since the weight and volume of the movable mechanism are added, it is strongly required to reduce the size and thickness of the display device. Therefore, the exterior cover is also required to be reduced in size and thickness, and an opening is formed particularly on the display surface side of the display panel of the exterior cover, so that it is difficult to ensure sufficient rigidity. For this reason, when an external force is applied to the display surface side of the display panel of the exterior cover, the exterior cover is partially deformed, and the deformation is transmitted to the display panel via the protective plate, and display unevenness is likely to occur.

  Therefore, an object of the present invention is to provide a mechanism capable of suppressing display unevenness due to an external force in a display device supported by a movable mechanism with respect to a device main body.

  In order to achieve the above object, the present invention provides an electronic device comprising a device main body and a display device supported by a movable mechanism with respect to the device main body, wherein the display device includes a display panel, And a display module having a protective plate integrally fixed to the display surface side of the display panel, an opening corresponding to the display area of the display panel, and the protective plate around the opening on the back side A first exterior member to be fixed; a holding member that abuts the protective plate without contacting the display panel and retains the display module relative to the first exterior member; and the first exterior member. A second exterior member fixed to the first exterior member together with the holding member in a state in which the display module and the retaining member are accommodated between the holding member and the second Between the exterior members When a gap is formed and an external force is applied to the protective plate or the first exterior member, the holding member is displaced by the gap and contacts the second exterior member to receive the external force. It is characterized by that.

  ADVANTAGE OF THE INVENTION According to this invention, the display nonuniformity by the external force in the display apparatus supported via a movable mechanism with respect to an apparatus main body can be suppressed.

(A) is an external appearance perspective view of the digital camera which is an example of embodiment of the electronic device of this invention, (b) is an external appearance perspective view which shows the state which closed the display apparatus mounted in the digital camera shown to (a). is there. It is a disassembled perspective view of a display apparatus. It is the sectional view on the AA line of FIG.1 (b). It is the BB sectional drawing of FIG.1 (b). It is CC sectional view taken on the line of FIG.1 (b).

  Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1A is an external perspective view of a digital camera which is an example of an embodiment of an electronic apparatus of the present invention, and FIG. 1B is a state in which a display device mounted on the digital camera shown in FIG. FIG.

  As shown in FIG. 1, in the digital camera of this embodiment, a display device 2 is supported by a camera body 1 via a biaxial hinge mechanism 3 so as to be rotatable in the opening / closing direction and rotatable in an open state. In addition, an opening / closing detection sensor 4 for detecting opening / closing of the display device 2 is provided inside the camera body 1. Here, the camera body 1 corresponds to an example of a device body of the present invention.

  2 is an exploded perspective view of the display device 2, FIG. 3 is a sectional view taken along line AA in FIG. 1B, FIG. 4 is a sectional view taken along line BB in FIG. 1B, and FIG. FIG.

  As shown in FIG. 2, the display device 2 includes a front cover 22, a display module 21, an elastic member 25, a frame member 24 a, a chassis member 28, and a rear cover 27. Here, in this embodiment, the frame member 24a and the chassis member 28 constitute an example of the holding member of the present invention. The front cover 22 corresponds to an example of the first exterior member of the present invention, and the rear cover 27 corresponds to an example of the second exterior member of the present invention.

  The display module 21 includes a display panel 21a, a protective plate 21b, and a touch panel sensor 21e.

  The display panel 21a is unitized by adding a backlight illumination device, a diffusion plate, a light guide plate, and the like to a liquid crystal display element, for example. A flexible substrate 21f (see FIG. 4) is pulled out from the display panel 21a, and the flexible substrate 21f is connected to an electric substrate (not shown) to perform signal input and power supply to the display panel 21a.

  Further, the display panel 21a is integrally bonded and fixed only to the protective plate 21b via the flat-plate touch panel sensor 21e, and is not in direct contact with other members other than the flexible substrate 21f. This is to prevent the display panel 21a from being deformed due to deformation of other members and causing uneven display on the screen.

  In addition, when it is necessary to perform grounding of the display panel 21a by a method other than the electrical connection by the flexible substrate 21f, it is desirable that the display panel 21a be performed by a method that does not apply unnecessary pressure to the display panel 21a. Specifically, for example, there is a method of electrically connecting the display panel 21a and the chassis member 28 with a copper foil tape.

  The protection plate 21b is a member that holds the display surface side of the display panel 21a. The protection plate 21b is formed of a transparent member having translucency. For example, a resin material mainly made of polycarbonate or acrylic, or a glass material is used. Depending on the required strength and performance, the glass material may be subjected to strengthening treatment, surface modification, coating, or the like.

  In the present embodiment, when the display module 21 is fixed to the front cover 22, a step process is performed around the protective plate 21b in order to reduce the step between the front cover 22 and the protective plate 21b. In particular, when the touch panel sensor 21e is mounted, the operator's finger often touches the protective plate 21b. Therefore, it is desirable to reduce the level difference between the protective plate 21b and the front cover 22 so as to reduce the uncomfortable feeling when the finger touches the level difference. For this reason, in the present embodiment, the protective plate 21 b is slightly recessed with respect to the front cover 22. The protective plate 21b may be slightly convex with respect to the front cover 22.

  As shown in FIG. 3, the display panel 21 a and the touch panel sensor 21 e are fixed via an adhesive 21 d such as a transparent resin, and the touch panel sensor 21 e and the protective plate 21 b include an adhesive 21 c such as a transparent resin. Fixed through. As the transparent resin, a resin having a refractive index higher than that of air and having high translucency and being cured and fixed by UV light irradiation or heat is used, but a double-sided tape or the like may be used instead of the transparent resin. .

  The touch panel sensor 21e is obtained by printing a transparent electrode on a transparent member such as glass or film, and detects the position of a conductive member such as a finger that is in contact with or close to the protective plate 21b. A touch panel flexible board (not shown) is drawn out from the touch panel sensor 21e, and the flexible board is connected to an electric board (not shown) to perform signal output and power supply.

  The front cover 22 is made of metal or resin. The front cover 22 is provided with an opening 22 a corresponding to the display area of the display panel 21 a of the display module 21. The display module 21 is fitted into the front cover 22 from the back side. The protective plate 21b is fixed around the opening 22a on the back surface of the front cover 22 via a double-sided tape 23 or the like. In such a fixed state, the frame member 24 a and the chassis member 28 are assembled into the front cover 22 from the back side of the display panel 21 of the display module 21.

  The frame member 24a includes a contact surface 24c that contacts the front cover 22, an urging surface 24d that urges the protective plate 21b toward the front cover 22 via the elastic member 25, and an opposing surface 24e that faces the rear cover 27. 3). As shown in FIG. 3, the facing surface 24 e has a minimum gap with the rear cover 27 that does not come into contact with tolerance.

  As shown in FIG. 4, the frame member 24 a is provided with a protrusion-shaped portion 24 b extending inward along the rear cover 27 at a portion facing the flexible substrate 21 f pulled out from the display panel 21 a. By providing the protrusion-shaped portion 24b, the shape of the periphery of the flexible substrate 21f of the frame member 24a becomes substantially L-shaped, and the rigidity is increased.

  Thereby, when the rear cover 27 is deformed by an external force applied to the display device 2, it is possible to prevent the frame member 24 a from being deformed and the flexible substrate 21 f from contacting the rear cover 27. As shown in FIG. 5, a magnet 26 as a detection element of the open / close detection sensor 4 provided inside the camera body 1 is fixed to the frame member 24a.

  The elastic member 25 is sandwiched in a compressed state between the protection plate 21b and the urging surface 24d of the frame member 24a. As a result, variations in gaps due to dimensional tolerances between the protective plate 21b and the frame member 24a are absorbed, and a part of the load applied to the protective plate 21b is reliably transmitted to the frame member 24a. Energize to the side.

  At this time, the frame member 24a and the display module 21 are in contact with each other only on the protective plate 21b via the elastic member 25, and the display panel 21a is not in contact with the frame member 24a and the chassis member 28. Note that a light shielding material may be used for the elastic member 25 to prevent light leaking from the backlight illumination device of the display panel 21a from leaking to the outside.

  The chassis member 28 fixes an electric substrate (not shown) connected to the display panel 21a and the touch panel sensor 21e, and electrically connects each member of the display device 2 to the camera body 1 via the biaxial hinge mechanism 3. This is a member for grounding.

  As shown in FIGS. 4 and 5, the chassis member 28 is provided with a protrusion-shaped portion 28 a extending toward the rear cover 27, and the protrusion-shaped portion 28 a is a minimum that does not come into contact with the rear cover 27 due to tolerance. It faces the rear cover 27 with a limited gap. The chassis member 28 is attached to the front cover 22 so that the abutment surface 24c of the frame member 24a abuts against the front cover 22 through the elastic member 25 in a compressed state.

  The rear cover 27 is formed of metal or resin, and the display module 21, the elastic member 25, the frame member 24a, and the chassis member 28 are accommodated between the front cover 22 and the screw 5 (FIG. 2) or the like. It is fastened and fixed to the front cover 22 together with the chassis member 28. Since the rear cover 27 does not have the opening 22a unlike the front cover 22, the rigidity is relatively high.

  Here, when an external force is applied to the protective plate 21b or the front cover 22 from the display surface side of the display device 2 due to an operation of the touch panel or an impact, the external force is applied to the frame member 24a and the chassis member via the elastic member 25. 28. Then, the opposing surface 24e of the frame member 24a and the projection-shaped portion 28a of the chassis member 28 are displaced by the gap described above and abut against the rear cover 27, so that the external force is received using the rigidity of the rear cover 27.

  As described above, in this embodiment, even if an external force is applied to the front cover 22 side having a relatively low rigidity, the external force is received by the rear cover 27 having a relatively high rigidity without going through the display panel 21a. It is done. Thereby, deformation of the protection plate 21b due to external force can be suppressed, and display unevenness of the display panel 21a in the display device 2 supported to be rotatable with respect to the camera body 1 via the biaxial hinge mechanism 3 is suppressed. be able to.

  The configuration of the present invention is not limited to that exemplified in the above embodiment, and the material, shape, dimensions, form, number, arrangement location, and the like can be changed as appropriate without departing from the scope of the present invention. It is.

  For example, in the above-described embodiment, the biaxial hinge mechanism 3 is illustrated as the movable mechanism. However, the present invention is not limited to this, and in addition to the hinge mechanism of one axis or three axes or more, a ball joint type or slide type movable mechanism may be used. Also good.

DESCRIPTION OF SYMBOLS 1 Camera body 2 Display apparatus 3 Biaxial hinge mechanism 21 Display module 21a Display panel 21b Protection board 21e Touch panel sensor 24a Frame member 25 Elastic member 28 Chassis member

Claims (3)

An electronic device comprising a device main body and a display device supported via a movable mechanism with respect to the device main body,
The display device
A display module having a display panel, and a protective plate fixed integrally to the display surface side of the display panel;
A first exterior member having an opening corresponding to a display area of the display panel, and the protective plate is fixed around the opening on the back side;
A holding member for holding the display module against the first exterior member in contact with the protective plate without contacting the display panel;
A second exterior member fixed to the first exterior member together with the holding member in a state in which the display module and the retention member are housed between the first exterior member,
When a gap is formed between the holding member and the second exterior member, and an external force is applied to the protective plate or the first exterior member, the holding member is displaced by the gap and the An electronic apparatus characterized by receiving the external force by abutting against a second exterior member.   The electronic apparatus according to claim 1, wherein an elastic member is provided in a compressed state between the protection plate and the holding member.   The electronic device according to claim 1, wherein the display module includes a touch panel sensor between the display panel and the protective plate.

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