JP5241201B2 - Electronics - Google Patents

Description

  The present invention relates to a drip-proof / dust-proof structure for a display element provided in an electronic apparatus.

  Electronic devices such as digital cameras and portable devices are equipped with display elements such as a liquid crystal panel that constitute a display unit for displaying images and various information. The display surface of the display element is covered with a display window member constituting a part of the exterior member for the purpose of protecting the display surface.

  Patent Document 1 discloses an electronic apparatus in which a transparent member is disposed between a display element and a display window member, and the transparent member is brought into close contact with the display surface of the display element and the inner surface of the display window member. Thereby, the reflection of the light which arises in the interface of the display surface of a display element, the inner surface of a display window member, and air can be reduced, and the visibility of a display part can be improved.

Electronic devices are also required to have a drip-proof / dust-proof structure. As such a drip-proof / dust-proof structure, generally, a structure in which an elastic member such as an O-ring is sandwiched between a member constituting the exterior and an internal structural member is employed. However, if an elastic member dedicated to drip-proof / dust-proof is used, the number of parts and cost may increase. For this reason, Patent Document 2 discloses an electronic device in which a part of an elastic member constituting an operation switch is used as a drip-proof / dust-proof packing for a display unit.
JP 2003-295780 A JP 2006-047448 A

  The drip-proof / dust-proof structure of Patent Document 2 is effective when an operation switch is provided on the surface of the electronic device on which the display unit is provided, but the prevention of the number of parts and the cost of the display unit alone are suppressed. A drop / dust-proof structure is also desired.

  The present invention provides an electronic device having a good visibility and a drip-proof / dust-proof structure in the display unit while suppressing the number of parts and cost in the display unit.

Electronic devices to one aspect of the present invention includes a display element, a display element holding member for holding the display device, and the package member in which the opening is formed, a display window member that is attached to the opening, a display device And a translucent elastic member disposed between the display window member and the display window member. Then, the light-transmitting elastic member, and the contact surface area in close contact with the inner surface of the display surface and the display window member of the display device, and a pressed region located on the outer peripheral side than the contact surface area, the contact surface area and pressed A groove-shaped portion located between the region and the display element holding member and the exterior member is disposed, and the display element holding member and the exterior member press the pressed region, characterized Rukoto is compressed deforming the pressed region.
An electronic apparatus according to another aspect of the present invention includes a display element, a display element holding member that holds the display element, an exterior member in which an opening is formed, a display window member that is attached to the opening, and a display element. A translucent elastic member disposed between the display window member and the translucent elastic member, wherein the translucent elastic member is in close contact with the display surface of the display element and the inner surface of the display window member; And a pressed region having a thickness different from the thickness of the contact surface region is formed, and the pressed region is disposed between the display element holding member and the exterior member, and the display element holding member and the exterior The member is configured to compress and deform the pressed area by pressing the pressed area.

  According to the present invention, the outer peripheral side portion of the translucent elastic member disposed between the display element and the display window member is used as a drip-proof / dust-proof elastic member in order to improve visibility. A drip-proof / dust-proof structure with a reduced number of parts and cost can be realized with a single unit.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  1 and 2 show the front and back of an interchangeable lens single-lens reflex digital camera (hereinafter simply referred to as a camera) as an example of an electronic apparatus (imaging device) that is Embodiment 1 of the present invention.

  The front of the camera 100 shown in FIG. 1 is covered with a front exterior component 101. At the center of the front of the camera 100, a mount mechanism 102 to which a photographic lens unit (not shown) is detachably mounted is provided. The mount mechanism 102 has a lock mechanism 103 for locking and holding the mounted photographic lens unit.

  An electrical contact group 104 is provided inside the mount mechanism 102, and communication between the camera 100 and the photographing lens unit is possible. Further, a quick return mirror 105 is arranged in the back of the mount mechanism 102.

  The center of the quick return mirror 105 is a half mirror. In the state where the quick return mirror 105 is disposed at the down position as shown in the figure, a part of the light beam from the photographing lens unit is reflected upward by the half mirror part and the other part is transmitted. The light beam transmitted through the quick return mirror 105 is reflected downward by a sub mirror (not shown) installed behind the quick return mirror 105 and guided to an AF sensor (not shown).

  On the other hand, the light beam reflected upward by the quick return mirror 105 reaches the eyes of the photographer via a pentaprism (not shown) constituting the finder optical system and an eyepiece lens 112 described later.

  In the vicinity of the mount mechanism 102, a lock release button 106 for releasing the lock held by the lock mechanism 103 when being removed from the photographic lens unit mount mechanism 102 is provided.

  A release switch 107 is provided above the camera 100. When the release switch 107 is pressed halfway, a shooting preparation operation such as photometry / autofocus (AF) is started. Further, when the release switch 107 is fully pressed, the photographing operation is started.

  A main electronic dial 108 is provided near the release switch 107. By rotating the main electronic dial 108, parameters such as shutter speed and aperture value can be changed.

  Further, a mode dial 109 is provided on the upper portion of the camera 100. The shooting mode can be changed by rotating the mode dial 109.

  Further, the back surface of the camera 100 shown in FIG. A display opening 110c is formed in a part of the back exterior member 110, and a display element to be described later is disposed in the back of the display opening 110c. The display element is a main component constituting a display unit of the camera 100 described later.

  The display opening 110c is closed by a display window member 111 formed of a transparent resin material. Thereby, the display surface of a display element is covered and protected from external force. The outer peripheral portion of the display window member 111 is screwed to the back surface of the peripheral portion of the opening 110 c in the rear exterior component 110. The display window member 111 functions as a part of the exterior member of the camera 100.

  The eyepiece 112 described above is disposed on the upper back of the camera 100. The photographer can observe the subject through a finder optical system including the eyepiece 112. A diopter adjustment dial 113 is provided in the vicinity of the eyepiece 112. By rotating the diopter adjustment dial 113, the diopter of the finder optical system can be adjusted according to the eyesight of the photographer.

  Further, a power switch 114 for switching the power ON / OFF is provided at the lower back of the camera 100. Further, a sub electronic dial 115 is provided on the back of the digital camera 100. By rotating the sub electronic dial 115, parameters such as various menus, exposure correction values, and aperture values can be changed. Furthermore, a determination button 116 is arranged in the center of the sub electronic dial 115, and various menus and parameters that have been changed can be confirmed by operating this button.

  In addition, various operation buttons are arranged around the display window member 111. Specifically, a menu button 117 for entering various menus, an information display button 118 for displaying setting information and shooting information of the camera 100, and jumping an unnecessary display when displaying shooting information and a shot image. Jump button 119 is provided. In addition, a playback button 120 for displaying a captured image read from the recording medium and an erase button 121 for deleting the captured image from the recording medium are also provided.

  3A, 3B, 4A, and 4B show a configuration of a display unit mounted on the camera 100 of the present embodiment. The back exterior component 110 is shown by omitting portions other than the peripheral portion of the display unit.

  In the display unit, a display window member 111, a transparent elastic member (translucent elastic member) 130, a display element 131, and a display element holding member 132, which are attached to the rear exterior component 110, are stacked in order from the outer surface side of the camera 100. Configured. Hereinafter, a direction in which these constituent members are stacked (for example, a direction perpendicular to the display surface of the display element 131) is referred to as a stacking direction.

  As described above, the back exterior component 110 is formed with the display opening 110c, and the outer peripheral inner surface thereof is provided with a drip-proof rib portion 110a for forming a drip-proof structure. The drip-proof rib portion 110 a is formed as a frame-shaped protrusion that is independent of other portions of the back exterior member 110.

  The outer peripheral portion of the display window member 111 is screwed to a portion of the inner surface of the peripheral portion of the opening 110c in the rear exterior component 110 that is on the inner peripheral side of the drip-proof rib portion 110a. 111a is a hole formed in the four corners of the display window member 111, and 110d is formed in the rear exterior member 110 so that the display window member 111 is screwed to the rear exterior member 110 by screws inserted into the hole 111a. A screw hole is shown. Although not shown in the drawing, a field-of-view restricting portion for preventing a portion other than the display area of the display element 131 from being visible from the outside of the camera 100 is formed on the inner surface 111b of the display window member 111 by printing or the like. .

  The display element holding member 132 holds the display element 131 from the back surface side (the side opposite to the display surface). The display device holding member 132 has a recess 132b for holding the display element 131 so as to prevent (position) the display element 131 and a drip-proof rib 132a formed on the outer peripheral side of the recess 132b. And are formed. The drip-proof rib 132 a is formed as a frame-shaped protrusion that is independent of other parts of the display element holding member 132.

  Further, the display element holding member 132 is formed with a screwing portion 132c for screwing to the spacer portion 110b provided on the rear exterior member 110.

  The display element 131 is composed of a self-luminous element such as a liquid crystal panel or an organic EL. The display element 131 has a display surface 131a for displaying images and various types of information. In addition, when a liquid crystal panel is used, the display element 131 has a backlight (not shown) that illuminates the liquid crystal panel from behind.

  The transparent elastic member 130 has a self-adsorbing property that is in close contact with other members that are in contact with the transparent elastic member 130. Further, the transparent elastic member 130 has translucency (transparency) that does not hinder the observation of images and information displayed on the display element 131 from the outside of the camera 100 through the display window member 111. Furthermore, the transparent elastic member 130 has elasticity that can exhibit the drip-proof / dust-proof performance described later. The refractive index of the material forming the transparent elastic member 130 is matched to the refractive index of the material forming the protective glass provided on the display surface 131a of the display window member 111 and the display element 131 (with a refractive index that can be regarded as the same or the same). ) Is set.

  In the transparent elastic member 130, the display window contact surface 130a that is in close contact with the inner surface 111b of the display window member 111 and the display element contact surface 130b that is in close contact with the display surface 131a of the display element 131 are opposite to each other in the stacking direction. As a side surface. The display window contact surface 130a and the display element contact surface 130b are each slightly larger than the inner surface 111b of the display window member 111 so as to be in close contact with the entire area necessary for display and the entire display surface 131a of the display element 131. Is formed.

  The transparent elastic member 130 having the refractive index as described above is in close contact with the inner surface 111b of the display window member 111 and the display surface 131a of the display element 131, so that light incident from the outside of the camera 100 is reflected at these interfaces. Can be suppressed. Therefore, the visibility of the display unit can be improved.

  In the following description, a region where the display window contact surface 130a and the display element contact surface 130b are formed in the transparent elastic member 130 is referred to as a contact surface region.

  Furthermore, a region (outer peripheral region: hereinafter referred to as a pressed region) 130 c separated from the close contact surface region by the groove-shaped portion 130 d is formed on the outer peripheral side of the close contact surface region in the transparent elastic member 130. .

  As shown in FIG. 4B, the pressed area 130c is pressed in the stacking direction between the drip-proof rib 110a formed on the back exterior member 110 and the drip-proof rib 132a formed on the display element holding member 132. It is in an elastically deformed state. Although it is considered that the above-described self-adsorption property is also realized by a slight elastic deformation, the elastic deformation of the pressed region 130c here is larger than the elastic deformation amount in the contact surface region. This is the same in other embodiments described later.

  The pressed region 130c is formed so as to surround the entire outer periphery of the contact surface region of the transparent elastic member 130, and the drip-proof rib portions 110a and 132a also surround the entire outer periphery of the opening 110c and the display element 131, respectively. Is formed. And the press accompanied by the elastic deformation of the to-be-pressed area | region 130c as shown to FIG. 4B is also performed in the perimeter of the drip-proof rib part 110a, 132a.

  Due to the press contact between the drip-proof rib portion 110a of the back exterior member 110 and the pressed region 130c in an elastically deformed state, water droplets 140 and dust that have entered the gap between the back exterior member 110 and the display window member 111 from the outside of the camera 100. Further intrusion into the camera 100 is prevented.

  Further, a space for accommodating the display element 131 is surrounded by the transparent elastic member 130 and the display element holding member 132 due to the press contact between the drip-proof rib 132a of the display element holding member 132 and the pressed area 130c of the transparent elastic member 130. Is formed as a drip-proof / dust-proof space. Therefore, a double drip-proof / dust-proof structure can be realized for the display element 131.

  In addition, since the display window contact surface 130a of the transparent elastic member 130 is in close contact with the inner surface 111b of the display window member 111, it is possible to prevent water droplets 140 and the like from entering between them.

  With the above configuration, a high drip-proof / dust-proof performance in the display unit can be obtained by using the transparent elastic member 130 that is originally used for improving the visibility. That is, a drip-proof / dust-proof structure of the display unit can be realized without using a dedicated drip-proof / dust-proof part such as an O-ring.

  Here, in this embodiment, the case where the pressed region 130c is directly pressed by the drip-proof rib portion 110a of the back exterior member 110 and the drip-proof rib portion 132a of the display element holding member 132 has been described. However, another member that does not interfere with the formation of the drip-proof / dust-proof space may be interposed between the drip-proof rib portions 110a and 132a and the pressed region 130c. This is the same in other embodiments described later.

  Further, in order to improve the drip-proof / dust-proof performance, the surface roughness of the surface of the drip-proof ribs 110a and 132a that contacts the pressed area 130c of the transparent elastic member 130 is set to the back exterior member 110 or the display element holding member 132. It may be finer than other surfaces.

  As described above, the display window member 111 is coupled to the rear exterior member 110 by screws rather than bonding. Accordingly, the display window member 111 is prevented from being detached from the rear exterior member 110 due to an external pressure generated when the display window member 111 is pushed from the outside or an internal pressure generated when the transparent elastic member 130 expands due to temperature and humidity changes. be able to.

  Also, a counterbore is formed in the hole 111a formed in the display window member 111 so that the head of the screw inserted therein does not hinder the close contact of the transparent elastic member 130 with the inner surface 111b of the display window member 111. The screw head does not protrude from the hole 111a. These are the same in other embodiments described later.

  In the present embodiment, as described above, the groove-shaped portion 130d is formed between the contact surface regions (130a, 130b) and the pressed region 130c in the transparent elastic member 130. The groove-shaped portion 130d is formed over the entire circumference so as to surround the contact surface area and on both sides of the display window contact surface 130a side and the display element contact surface 130b side.

  By providing the groove-shaped portion 130b, transmission of elastic deformation (that is, stress indicated by an arrow in FIG. 4B) generated in the pressed region 130c to the contact surface regions (130a, 130b) is reduced. That is, the elastic deformation (stress) generated in the pressed region 130c affects the contact surface region, whereby the contact surface region is peeled off from the inner surface 111b of the display window member 111 and the display surface 131a of the display element 131, and the visibility is lowered. Avoid doing that.

  As described above, according to the present embodiment, it is possible to realize a camera having a display unit that has good visibility, high drip-proof / dust-proof performance, and few components.

  5A and 5B show a configuration of a display unit of an electronic apparatus that is Embodiment 2 of the present invention. Note that the display unit of the present embodiment is used in the camera described in the first embodiment.

  Since the basic configuration of the display unit of the present embodiment is the same as that of the first embodiment, components having the same or common functions as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment.

  In the present embodiment, a step shape portion 130e is provided between the contact surface regions (130a, 130b) of the transparent elastic member 130 and the pressed region 130c formed on the outer peripheral side. The step shape portion 130e is formed over the entire circumference so as to surround the contact surface area and on both sides of the display window contact surface 130a side and the display element contact surface 130b side.

  As shown in FIG. 5B, the pressed area 130 c is pressed in the stacking direction between the drip-proof rib portion 110 a formed on the back exterior member 110 and the drip-proof rib portion 132 a formed on the display element holding member 132. It is in an elastically deformed state. In addition, by providing the step-shaped portion 130e, the thickness of the pressed region 130c in the present embodiment is thinner than that in the first embodiment. Other configurations are the same as those in the first embodiment.

  Also in this embodiment, the water droplet 140 or the like that has entered the gap between the back exterior member 110 and the display window member 111 from the outside due to the press contact between the drip-proof rib portion 110a of the back exterior member 110 and the pressed region 130c in an elastically deformed state. This prevents dust from entering the camera 100 any further.

  Further, a space for accommodating the display element 131 is surrounded by the transparent elastic member 130 and the display element holding member 132 due to the press contact between the drip-proof rib 132a of the display element holding member 132 and the pressed area 130c of the transparent elastic member 130. Is formed as a drip-proof / dust-proof space. Therefore, a double drip-proof / dust-proof structure can be realized for the display element 131.

  In addition, since the display window contact surface 130a of the transparent elastic member 130 is in close contact with the inner surface 111b of the display window member 111, it is possible to prevent water droplets 140 and the like from entering between them.

  With the above configuration, a high drip-proof / dust-proof performance in the display unit can be obtained by using the transparent elastic member 130 that is originally used for improving the visibility.

  Furthermore, in this embodiment, by providing the stepped portion 130e, the elastic deformation (that is, the stress indicated by the arrow in FIG. 5B) generated in the pressed region 130c is transmitted to the contact surface regions (130a, 130b). Reduced. That is, the elastic deformation (stress) generated in the pressed region 130c affects the contact surface region, whereby the contact surface region is peeled off from the inner surface 111b of the display window member 111 and the display surface 131a of the display element 131, and the visibility is lowered. Avoid doing that.

  Therefore, according to the present embodiment, it is possible to realize a camera having a good visibility, high drip-proof / dust-proof performance, and a display unit with few components.

  6A and 6B show a configuration of a display unit of an electronic apparatus that is Embodiment 3 of the present invention. Note that the display unit of the present embodiment is used in the camera described in the first embodiment.

  Since the basic configuration of the display unit of the present embodiment is the same as that of the first embodiment, components having the same or common functions as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment.

  In this embodiment, a step / groove-shaped portion 130f is provided between the contact surface regions (130a, 130b) of the transparent elastic member 130 and the pressed region 130c formed on the outer peripheral side. The step / groove shape portion 130f is configured by adding the groove shape shown in the first embodiment to the step shape portion shown in the second embodiment. The step / groove shape portion 130f is formed over the entire circumference so as to surround the contact surface area, and on both sides of the display window contact surface 130a side and the display element contact surface 130b side.

  As shown in FIG. 6B, the pressed region 130c is pressed in the stacking direction between the drip-proof rib portion 110a formed on the rear exterior member 110 and the drip-proof rib portion 132a formed on the display element holding member 132. It is in an elastically deformed state. In addition, by providing the step / groove shape portion 130f, the thickness of the pressed region 130c in the present embodiment is thinner than that in the first embodiment. Other configurations are the same as those in the first embodiment.

  Also in this embodiment, the water droplet 140 or the like that has entered the gap between the back exterior member 110 and the display window member 111 from the outside due to the press contact between the drip-proof rib portion 110a of the back exterior member 110 and the pressed region 130c in an elastically deformed state. This prevents dust from entering the camera 100 any further.

  Further, a space for accommodating the display element 131 is surrounded by the transparent elastic member 130 and the display element holding member 132 due to the press contact between the drip-proof rib 132a of the display element holding member 132 and the pressed area 130c of the transparent elastic member 130. Is formed as a drip-proof / dust-proof space. Therefore, a double drip-proof / dust-proof structure can be realized for the display element 131.

  In addition, since the display window contact surface 130a of the transparent elastic member 130 is in close contact with the inner surface 111b of the display window member 111, it is possible to prevent water droplets 140 and the like from entering between them.

  With the above configuration, a high drip-proof / dust-proof performance in the display unit can be obtained by using the transparent elastic member 130 that is originally used for improving the visibility.

  Furthermore, in this embodiment, by providing the step / groove shape portion 130f, the elastic deformation (that is, the stress indicated by the arrow in FIG. 6B) generated in the pressed region 130c is applied to the contact surface regions (130a, 130b). Transmission is reduced. That is, the elastic deformation (stress) generated in the pressed region 130c affects the contact surface region, whereby the contact surface region is peeled off from the inner surface 111b of the display window member 111 and the display surface 131a of the display element 131, and the visibility is lowered. Avoid doing that.

  Therefore, according to the present embodiment, it is possible to realize a camera having a good visibility, high drip-proof / dust-proof performance, and a display unit with few components.

  Each embodiment described above is only a representative example, and various modifications and changes can be made to each embodiment in carrying out the present invention.

  For example, in each of the above embodiments, the case where the groove-shaped portion 130d, the step-shaped portion 130e, and the step / groove-shaped portion 130f are formed on the both contact surfaces (130a, 130b) side of the transparent elastic member 130 has been described. You may form only in the close_contact | adherence surface side.

  In addition, the shape formed between the contact surface area and the pressed area in the transparent elastic member is not limited to the groove shape or the step shape described in the above embodiments, but the contact surface of the elastic deformation (stress) of the pressed area. Any shape can be used as long as it reduces the transmission to the region.

  Furthermore, in each of the above embodiments, a single-lens reflex digital camera having a display unit has been described. However, the present invention is not limited to an imaging device such as a compact digital camera and a video camera, but also an imaging device such as a mobile phone, a portable terminal, and a portable TV. It can also be applied to other electronic devices.

1 is a front external view of a digital camera that is Embodiments 1 to 3 of the present invention. FIG. 1 is a rear external view of a digital camera according to Embodiments 1 to 3. FIG. FIG. 3 is an exploded perspective view illustrating a configuration of a display unit according to the first embodiment. The disassembled perspective view seen from the direction different from FIG. 3A which shows the structure of the display part of Example 1. FIG. FIG. 3 is a cross-sectional view illustrating a configuration of a display unit according to the first embodiment. FIG. 4B is an enlarged cross-sectional view of a part of FIG. 4A. Sectional drawing which shows the structure of the display part of Example 2. FIG. Sectional drawing which expanded a part of FIG. 5A. Sectional drawing which shows the structure of the display part of Example 3. FIG. FIG. 6B is an enlarged cross-sectional view of a part of FIG. 6A.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Digital camera 110 Back surface exterior member 111 Display window member 130 Transparent elastic member 130a, 130b Contact surface 130c Pressed area 130d Groove shape part 130e Step shape part 130f Step / groove shape part 131 Display element 132 Display element holding member 140 Water droplet

Claims (2)

And the display element,
A display element holding member for holding the display element;
An exterior member in which an opening is formed;
A display window member that is attached to the opening,
A translucent elastic member disposed between the display element and the display window member;
The translucent elastic member includes a contact surface region that is in close contact with the display surface of the display element and the inner surface of the display window member, a pressed region that is positioned on the outer peripheral side of the contact surface region, and the contact surface region. And a groove-shaped portion located between the pressed region and the pressed region,
The pressed area is arranged between the outer member and the display element holding member, by the display element holding member and the outer member presses the pressed region, the Ru is compressed deforming the pressed region An electronic device characterized by that. A display element;
A display element holding member for holding the display element;
An exterior member in which an opening is formed;
A display window member attached to the opening;
A translucent elastic member disposed between the display element and the display window member;
The translucent elastic member has a close contact surface region that is in close contact with the display surface of the display element and the inner surface of the display window member, and is located on the outer peripheral side of the close contact surface region and is different from the thickness of the close contact surface region. A pressed area having a thickness is formed,
The pressed area is disposed between the display element holding member and the exterior member, and the pressed area is compressed and deformed by the display element holding member and the exterior member pressing the pressed area. Electronic equipment characterized by