JP2014106701A - Electronic apparatus and assembling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus in which a vibrator is hardly visually recognized by a user.SOLUTION: The electronic apparatus includes: a translucent panel 3 having a first principal surface 3a and a second principal surface 3b located on the opposite side of the first principal surface 3a; a light shielding part 5 arranged on the first principal surface 3a of the panel 3; and a vibrator 4 which is arranged in a position facing the light shielding part 5, on the second principal surface 3b of the panel 3. An area not facing the light shielding part 5 in a thickness direction, of the panel 3 forms a translucent area E0, and D≥t1×tanθc+t2nsinθc/(1-nsinθc)is satisfied, where n is the refractive index of the panel, θc is the critical angle to air of the panel 3, t1 is the thickness of the panel 3, t2 is the thickness of the vibrator 4, and D is a distance between an end part on the translucent area E0 of the vibrator 4 and an end part on the translucent area E0 of the light shielding part 5 in a cross-sectional view in the thickness direction of the panel 3.

Description

  The present invention relates to an electronic device and an assembling method.

  2. Description of the Related Art In recent years, tactile transmission technology that transmits various tactile sensations such as a feeling of pressing, a feeling of tracing, and a feeling of touch to an operated user when the user operates the touch panel in an electronic device equipped with a touch panel has been known. (For example, refer to Patent Document 1).

  An electronic apparatus to which such a tactile sense transmission technology is applied includes a display panel, a touch panel disposed opposite to the display panel via a space, and a vibrating body provided on the back surface of the touch panel. In such an electronic device, the touch panel can bend and vibrate according to the expansion and contraction motion of the vibrating body, whereby various tactile sensations can be transmitted to the user.

JP 2003-122507 A

  By the way, in the electronic device described above, for example, when the user looks into the electronic device from an oblique direction, the vibration body may be visually recognized by the user.

  The present invention has been made in view of the above points, and an object thereof is to provide an electronic device and a method for assembling the electronic device in which a vibration body is difficult for a user to visually recognize.

を満たす、ことを特徴とする。 The invention of the electronic device according to the present invention that achieves the above object is as follows:
A translucent panel having a first main surface and a second main surface located on the opposite side of the first main surface;
A light shielding portion disposed on the first main surface of the panel;
A vibrating body disposed at a position facing the light shielding portion on the second main surface of the panel,
The region of the panel that does not face the light shielding portion in the thickness direction of the panel forms a light transmitting region,
The refractive index of the panel is n, the critical angle of the panel with respect to the air is θc, the thickness of the panel is t1, the thickness of the vibrating body is t2, and the vibration body in the cross-sectional view in the thickness direction of the panel When the distance between the end on the translucent area side and the end on the translucent area side of the light shielding part is D,

It is characterized by satisfying.

を満たす、ことを特徴とする。 Furthermore, the invention of the electronic device according to the present invention that achieves the above object is as follows:
A translucent panel having a first main surface and a second main surface located on the opposite side of the first main surface;
A light shielding portion disposed on the second main surface of the panel;
A vibrating body disposed on the light shielding portion,
The region of the panel that does not face the light shielding portion in the thickness direction of the panel forms a light transmitting region,
The refractive index of the panel is n, the critical angle of the panel with respect to air is θc, the thickness of the vibrating body is t2, the end of the vibrating body on the light-transmitting region side in a cross-sectional view in the thickness direction of the panel, and the When the distance between the light-shielding portion and the end of the light-transmitting region is D,

It is characterized by satisfying.

  The light shielding part may be constituted by a light shielding film bonded to the panel.

The light shielding part is made of a light shielding film including an adhesive member,
The vibrator may be bonded to the second main surface of the panel through the light shielding film by the adhesive member.

  A reflection suppressing film having a reflectance lower than the reflectance of the surface may be provided on the surface of the vibrating body.

  The vibrating body has a facing surface facing the second main surface of the panel, a back surface located on the opposite side of the facing surface, and four side surfaces adjacent to the facing surface and the back surface, An inclined portion may be provided between a side surface closest to the light-transmitting region among the four side surfaces and the back surface.

The panel is a touch panel,
A substrate having a third principal surface;
A support body provided on the third main surface of the base body and supporting the touch panel in a region where the light shielding portion is disposed;
The display panel may further include a display panel provided on the third main surface of the base body and disposed to face the operation unit via a space.

The panel is a display panel having an input position detection function,
A substrate having a third principal surface;
And a support that is provided on the third main surface of the base and supports the display panel in a region where the light shielding portion is disposed.

  The display panel can be composed of a liquid crystal panel or an organic EL panel.

An electronic component disposed on the opposite side of the vibrating body from the light transmitting region side;
In a cross-sectional view in the thickness direction of the panel, L is a distance between an end portion of the light shielding portion on the light transmitting region side and an end portion of the electronic component on the light transmitting region side, and the thickness direction of the panel When the length along the second main surface of the vibrator in the cross-sectional view is W, the distance D is
D ≦ L−W
It is good to satisfy.

を満たすように、前記パネルに対して前記遮光部及び前記振動体を配置する、ことを特徴とする。 Furthermore, the invention of an electronic device assembling method according to the present invention that achieves the above-described object is as follows:
A translucent panel having a first main surface and a second main surface located on the opposite side of the first main surface;
A light shielding portion disposed on the first main surface of the panel;
A vibrating body disposed at a position facing the light shielding portion on the second main surface of the panel,
The region of the panel that does not face the light shielding portion in the thickness direction of the panel is an assembly method of an electronic device that forms a light-transmitting region,
The refractive index of the panel is n, the critical angle of the panel with respect to the air is θc, the thickness of the panel is t1, the thickness of the vibrating body is t2, and the vibration body in the cross-sectional view in the thickness direction of the panel When the distance between the end on the translucent area side and the end on the translucent area side of the light shielding part is D,

The light shielding portion and the vibrating body are arranged with respect to the panel so as to satisfy the above condition.

を満たすように、前記パネルに対して前記遮光部及び前記振動体を配置する、ことを特徴とする。 Furthermore, the invention of an electronic device assembling method according to the present invention that achieves the above-described object is as follows:
A translucent panel having a first main surface and a second main surface located on the opposite side of the first main surface;
A light shielding portion disposed on the second main surface of the panel;
A vibrating body disposed on the light shielding portion,
The region of the panel that does not face the light shielding portion in the thickness direction of the panel is an assembly method of an electronic device that forms a light-transmitting region,
The refractive index of the panel is n, the critical angle of the panel with respect to air is θc, the thickness of the vibrating body is t2, the end of the vibrating body on the light-transmitting region side in a cross-sectional view in the thickness direction of the panel, and the When the distance between the light-shielding portion and the end of the light-transmitting region is D,

The light shielding portion and the vibrating body are arranged with respect to the panel so as to satisfy the above condition.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the electronic device with which a vibration body is hard to be visually recognized by a user.

It is a top view which shows schematic structure of the electronic device which concerns on 1st Embodiment. It is the II sectional view taken on the line of FIG. It is the II-II sectional view taken on the line of FIG. It is an enlarged view of the part A1 of FIG. 3 is a flowchart illustrating an operation example of the electronic device of FIG. 1. It is a perspective view which shows schematic structure of a portable terminal. It is a top view which shows schematic structure of the electronic device which concerns on 2nd Embodiment. It is the III-III sectional view taken on the line of FIG. It is the IV-IV sectional view taken on the line of FIG. It is an enlarged view of the part A2 of FIG. It is a top view which shows schematic structure of the electronic device which concerns on 3rd Embodiment. It is the VV sectional view taken on the line of FIG. It is an enlarged view of the part A3 of FIG. It is a top view which shows schematic structure of the electronic device which concerns on 4th Embodiment. It is the VI-VI sectional view taken on the line of FIG. It is an enlarged view of the part A4 of FIG. It is a top view which shows schematic structure of the electronic device which concerns on 5th Embodiment. It is the VII-VII sectional view taken on the line of FIG. It is the VIII-VIII sectional view taken on the line of FIG. It is principal part sectional drawing of the electronic device which concerns on 6th Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, each figure referred below demonstrates the simplified main member required in order to demonstrate this invention among the structural members of one Embodiment of this invention for convenience of explanation. Therefore, the electronic device according to the present invention can include arbitrary constituent members that are not shown in the drawings referred to in this specification.

(First embodiment)
FIG. 1 is a plan view showing a schematic configuration of a main part of the electronic apparatus according to the first embodiment. 2 is a cross-sectional view taken along the line II of FIG. 3 is a cross-sectional view taken along line II-II in FIG. As shown in FIGS. 1 to 3, the electronic apparatus X1 according to the present embodiment has an observable light-transmitting region E0 and a light-shielding region E1 located outside the light-transmitting region E0. In the present embodiment, the translucent area E0 corresponds to an operation area in which an input operation can be performed by the user. The light-shielding area E1 corresponds to a non-operation area where the user cannot perform an input operation.

  The electronic device X1 includes a liquid crystal panel 2, a touch panel 3, a vibrating body 4, a light shielding film 5, a base body 6, a frame body 7, and a support body 8.

  The liquid crystal panel 2 is a display panel using a liquid crystal composition for display. Specifically, the liquid crystal panel 2 includes one substrate, the other substrate disposed opposite to the one substrate, a liquid crystal layer interposed between the one substrate and the other substrate, and between the one substrate and the other substrate. And a display member layer that contributes to display and a backlight that emits light to one substrate and the other substrate. Here, for convenience of explanation, illustration of one substrate, the other substrate, a liquid crystal layer, a display member layer, and a backlight is omitted. Examples of the display member layer include a pixel electrode, an alignment film, and a color filter. The driving method of the liquid crystal panel 2 may be a simple matrix driving method or an active matrix driving method.

  Instead of the liquid crystal panel 2, a display panel such as a plasma panel, an organic EL panel, or electronic paper may be used. Here, the organic EL panel is a display panel using a substance that emits light when a voltage is applied. Specifically, the organic EL panel is displayed by depositing a light emitter using an organic substance such as diamine on a substrate and applying a DC voltage of 5 to 10V. In addition, when an organic EL panel is used instead of the liquid crystal panel 2, a backlight is not necessary.

  The touch panel 3 is an input device that detects a position operated by a user with a finger or a pen as an input position. The touch panel 3 has a first main surface 3a and a second main surface 3b located on the opposite side of the first main surface 3a, and at least a portion corresponding to the light-transmitting region E0 is a parallel flat plate that is transparent to visible light. It consists of That is, the first main surface 3a of the touch panel 3 corresponding to the translucent area E0 is a surface that is directly operated by the user with a finger or a pen. As shown in FIGS. 2 and 3, the touch panel 3 is disposed to face the liquid crystal panel 2 through the space S <b> 1. As shown in FIG. 1, the touch panel 3 has a rectangular shape in plan view, but is not limited thereto, and the shape thereof is arbitrary.

  In the present embodiment, the touch panel 3 uses a capacitive touch panel from the viewpoint of improving detection sensitivity, but instead of the capacitive touch panel, a resistive touch panel or surface acoustic wave type touch panel 3 is used. A touch panel, an infrared touch panel, an electromagnetic induction touch panel, or the like may be used. In the present embodiment, since touch panel 3 is a capacitive touch panel, the touch panel 3 is provided on a base, a detection electrode provided on the base and detecting an input position, and the base. And a detection electrode wiring electrically connected to the detection electrode. Here, examples of the constituent material of the base include transparent materials such as glass, plastic, and acrylic.

  In the present specification, the touch panel 3 may include a transparent protective member that protects the touch panel 3, or may not include a protective member. When the touch panel 3 includes a protective member, the first main surface 3a of the touch panel 3 may mean the upper surface of the protective member, or the base body constituting the touch panel 3 with the protective member removed. It may mean the upper surface of. Further, the second main surface 3 b of the touch panel 3 may mean the lower surface of the base that constitutes the touch panel 3, or the lower surface of the insulating film provided on the lower surface of the base that constitutes the touch panel 3. Also good.

  The touch panel 3 includes an upper substrate, a first resistance film provided on the upper substrate, a lower substrate disposed to face the upper substrate, and a second resistance film provided on the lower substrate. In the case of a resistive film type touch panel, the first main surface 3a of the touch panel 3 means the upper surface of the upper substrate. The second main surface 3b of the touch panel 3 means the lower surface of the lower substrate. In the present embodiment, the operation region may mean a region of only the lower substrate in the resistive film type touch panel. In this case, the “first main surface of the panel” means the upper surface of the lower substrate, and the “second main surface of the panel” means the lower surface of the lower substrate.

  When a predetermined input operation by the user is detected, the vibrating body 4 causes the touch panel 3 to bend and vibrate to transmit a tactile sensation to the user via the user's finger or stylus pen that is in contact with the touch panel 3. It is a member that plays a role (tactile transmission function). In addition, the vibrating body 4 vibrates the touch panel 3 to generate air conduction sound and vibration sound transmitted through a part of the human body (for example, auricular cartilage of a human ear) that contacts the vibrating touch panel 3. May play a role (sound transmission function). The sound transmission function by the touch panel 3 may be appropriately selected by the user or may be omitted.

  Specifically, the vibrating body 4 mainly repeats expansion and contraction in the short-side direction of the touch panel 3 (left and right direction when FIG. 1 is viewed from the top of the drawing), so that mainly the thickness direction of the touch panel 3 (hereinafter, this direction). Is referred to as “vertical direction”), the touch panel 3 is vibrated. In addition, although mentioned later for details, the vibrating body 4 may have a role which detects the press to the touch panel 3. FIG. The vibrating body 4 is provided on the second main surface 3b of the touch panel 3 corresponding to the light shielding area E1 via an adhesive member (not shown). In the present embodiment, the vibrating body 4 is, for example, a piezoelectric element that performs expansion and contraction based on an applied voltage, but is not limited thereto. For example, when transmitting a tactile sensation, an electromagnetic vibrator, a spring, a motor, or the like may be used instead of the piezoelectric element. When transmitting sound, an electromagnetic vibrator or the like may be used instead of the piezoelectric element.

  In the present embodiment, since the vibrating body 4 is a piezoelectric element, it has the following configuration. That is, the vibrating body 4 includes a facing surface 4a facing the second main surface 3b of the touch panel 3, a back surface 4b positioned on the opposite side of the facing surface 4a, and four side surfaces 4c adjacent to the facing surface 4a and the back surface 4b. Has a substantially rectangular parallelepiped shape. In the vibrating body 4, electrodes and active layers are alternately stacked, and an inactive layer is provided on the active layer located in the vicinity of the second main surface 3 b of the touch panel 3. Here, the active layer is made of a polarized piezoelectric material. The inactive layer is composed of a piezoelectric material, a metal material, and an insulating material that are not subjected to polarization treatment.

  In the present embodiment, as shown in FIG. 1, two vibrating bodies 4 are provided in the vicinity of both short sides of the touch panel 3 along each short side. In addition, the arrangement position, the number, and the like of the vibrating body 4 are not particularly limited. For example, one vibrating body 4 may be provided in the vicinity of one short side of the touch panel 3, or two vibrating bodies 4 are provided in the vicinity of both long sides of the touch panel 3 along each long side. Alternatively, four touch panels 3 may be provided in the vicinity of both the long side and the short side along the long side and the short side. The vibrating body 4 may be shared for tactile transmission and sound transmission, or may be dedicated to each.

  The light shielding film 5 constitutes a light shielding part, and is a member having a light shielding property for shielding light. The light shielding film 5 is formed, for example, by printing a black pigment on the first main surface 3 a of the touch panel 3. The light shielding film 5 may be formed by evaporating a black metal on the first main surface 3a of the touch panel 3, for example. Instead of this, the light shielding film 5 may be a light shielding tape. The light shielding film 5 may completely block light, and the light shielding film 5 is provided on the first main surface 3a of the touch panel 3 corresponding to the light shielding region E1 in actual use of the electronic device. In the present embodiment, as shown in FIG. 1, the light shielding film 5 is provided in a frame shape so as to surround the liquid crystal panel 2 in plan view.

  The base body 6 and the frame body 7 are members that play a role of housing the liquid crystal panel 2. The base 6 has a third main surface 6a. The liquid crystal panel 2 is provided on the third main surface 6 a of the base 6. As shown in FIG. 1, the frame 7 is provided on the third main surface 6a of the base 6 so as to surround the liquid crystal panel 2 in a plan view. Examples of the constituent material of the base body 6 and the frame body 7 include resins such as polycarbonate and metals such as stainless steel, aluminum, and magnesium alloys. Here, the base body 6 and the frame body 7 may be integrally formed, or may be formed separately and independently.

  The support 8 is a member that plays a role of supporting the touch panel 3 in the light shielding area E1. The support 8 is provided on the third main surface 6 a of the base 6. In the present embodiment, the support 8 is located at a total of six locations including the four corners C1 to C4 of the touch panel 3, the corners C1 and C2, and the corners C3 and C4. The shape of the support 8 is, for example, a columnar shape, but may be a prismatic shape or the like. Examples of the constituent material of the support 8 include silicone rubber, urethane rubber, urethane foam, other rubbers, and plastics.

  Here, the arrangement position of the vibrating body 4 with respect to the light shielding film 5 will be described with reference to FIG. FIG. 4 is an enlarged view of the area A1 shown in FIG. The light beam L1 shown in FIG. 4 is reflected at the edge portion between the side surface 4c and the back surface 4b closest to the light-transmitting region E0 of the vibrating body 4 so that the light from the liquid crystal panel 2 and the like is reflected on the second main surface 3b of the touch panel 3. Of the light rays that are refracted and transmitted and incident on the first principal surface 3a, the light rays whose incident angle to the first principal surface 3a is the critical angle θc are shown. In this case, the light ray L1 is totally reflected by the first main surface 3a without being refracted and transmitted through the first main surface 3a. Note that total reflection means that when light enters a medium having a high refractive index from a medium having a high refractive index, incident light does not pass through the boundary surface but is totally reflected. Total reflection occurs when the incident light is greater than or equal to the critical angle θc. In the present embodiment, since the constituent material of the substrate in the touch panel 3 is glass, plastic, or acrylic and the refractive index is around 1.5, the critical angle θc with respect to air (the refractive index is approximately 1) is approximately 42 °. It is.

  Therefore, a light beam reflected by the edge portion of the vibrating body 4 and incident on the first main surface 3a through the second main surface 3b of the touch panel 3 is provided if the incident angle on the first main surface 3a is not less than the critical angle θc. The first main surface 3a is totally reflected and does not transmit to the outside. Thereby, it becomes difficult to visually recognize the vibrating body 4 provided on the second main surface 3b of the touch panel 3 from the outside. On the other hand, if the incident angle of the light beam incident on the first main surface 3a through the second main surface 3b of the touch panel 3 is less than the critical angle θc, the light beam is refracted and transmitted through the first main surface 3a. . Therefore, the arrangement position of the vibrating body 4 provided on the second main surface 3b of the touch panel 3 is visually recognized.

Here, in FIG. 4, the incident angle of the light beam L1 to the second main surface 3b of the touch panel 3, that is, the incident angle at which the refraction angle at the second main surface 3b is θc is θi, the thickness of the touch panel 3 is t1, and the vibration The thickness of the body 4 is t2. Further, in the in-plane direction of the touch panel 3, the distance between the incident point Pb of the light beam L1 on the second main surface 3b of the touch panel 3 and the incident point Pa on the first main surface 3a is D1, and the vibrating body 4 is incident. The distance between the point Pb is D2. In this case, the distance D between the vibrating body 4 and the incident point Pa in the in-plane direction of the touch panel 3 is
D = D1 + D2 = t1tan θc + t2tan θi (1)
It is represented by

If the refractive index of the touch panel 3 is n and the refractive index of air is 1, from Snell's law,
sinθi / sinθc = n (2)
Is established. Also, cosθi is
cos θi = ± (1-sin ² θi) ^1/2 (3)
It is represented by Therefore, when the above equation (1) is expressed by known values t1, t2, n, and θc using the above equations (2) and (3), the distance D becomes the following equation (4).

  In the electronic device X1 according to the present embodiment, in the cross-sectional view shown in FIG. 4, the vibrating body 4 has a translucent region (on the second main surface 3b of the touch panel 3 corresponding to the light shielding region (non-operation region) E1. (Operation region) It is provided at a position separated from the end portion 51 of the light shielding film 5 located on the E0 side, that is, a position corresponding to the incident point Pa by a distance D or more expressed by the above equation (4). That is, the distance D satisfies the following formula (5). With this configuration, the light beam reflected by the vibrating body 4 and incident on the touch panel 3 is reflected by the light shielding film 5 in the light shielding region E1 and is not emitted outside the electronic device X1, but in the light transmitting region E0. 3 is totally reflected by the first main surface 3a and is not emitted outside the electronic device X1. Therefore, even if a user tries to look into the vibrating body 4 from any direction through the translucent area E0, the vibrating body 4 is prevented from being visually recognized.

  As mentioned above, electronic device X1 concerning this embodiment can reduce possibility that vibrator 4 will be visually recognized to a user, and can improve appearance. Even if the electronic device X1 has a configuration in which a light shielding member such as a part of the base body 6 or the frame body 7 is not disposed between the vibrating body 4 and the incident point Pb, for example, the vibrating body 4 is hardly visible to the user.

  Next, an operation example of the electronic apparatus X1 will be described with reference to FIG.

  In the following, an operation example of the electronic device X1 when transmitting a pressing feeling to the user in the tactile transmission will be described. The electronic device X1 is other than the pressing feeling, for example, a feeling of tracing, a feeling of touch, etc. Of course, the present invention can also be applied to transmitting various tactile sensations.

  As shown in FIG. 5, when the user presses the first main surface 3a of the touch panel 3, the vibrating body 4 detects the press on the touch panel 3 (Op1). Here, the pressing detection function of the vibrating body 4 will be described. When the user presses the first main surface 3a of the touch panel 3, the touch panel 3 is bent downward. When the touch panel 3 is bent downward, the vibrating body 4 is also bent downward. That is, the amount of bending of the vibrating body 4 changes according to the pressure on the first main surface 3 a of the touch panel 3. In the present embodiment, since the vibrating body 4 is a piezoelectric element, it can be converted into a voltage corresponding to the displacement of the bending amount. As a result, the pressing on the touch panel 3 can be detected by the vibrating body 4. In addition, although the example which implement | achieved the press detection function by the vibrating body 4 was demonstrated above, you may implement | achieve not only this but by load sensors, such as a distortion sensor, for example.

  The tactile transmission driver (not shown) determines whether the data based on the pressure detected at Op1 satisfies a predetermined threshold when the input operation by the user is a pressure operation on the input object displayed on the display screen. Is determined (Op2). The tactile transmission driver is provided on a flexible printed circuit (FPC) connected to the touch panel 3 together with the touch panel driver that controls the touch panel 3, for example.

  If the tactile transmission driver determines that the data based on the pressure detected at Op1 satisfies a predetermined threshold (YES at Op2), the tactile transmission driver expands and contracts the vibrating body 4 in the short side direction of the touch panel 3 (Op3). ). Then, the touch panel 3 is curved and vibrated in the vertical direction by the vibrating body 4 expanded and contracted at Op3 (Op4). Thereby, a pressing feeling is transmitted to the user who pressed the first main surface 3a of the touch panel 3. On the other hand, if the tactile sensation transmission driver determines that the data based on the pressure detected at Op1 does not satisfy the predetermined threshold (NO at Op2), the process of FIG. 5 ends.

  When sound transmission is performed, the touch panel 3 is vibrated by driving at least one vibrating body 4 by a sound transmission driver (not shown) based on a sound signal to be transmitted. Thereby, air conduction sound is generated from the touch panel 3. Further, if the touch panel 3 that vibrates is brought into contact with a human ear, vibration sound can be transmitted through the contacted part. Thereby, air conduction sound and vibration sound can be transmitted to a person.

  Next, the portable terminal Y1 provided with the electronic device X1 will be described with reference to FIG.

  As illustrated in FIG. 6, the mobile terminal Y1 is, for example, a mobile phone, a smartphone, a PDA, and the like, and includes the electronic device X1, the audio input unit 101, the audio output unit 102, the key input unit 103, A housing 104 is provided.

  The voice input unit 101 includes, for example, a microphone or the like, and inputs a user's voice or the like. The audio output unit 102 includes a speaker or the like, and outputs audio from the other party. The key input unit 103 is constituted by, for example, a mechanical key. Note that the key input unit 103 may be an operation key displayed on the display screen. The housing 104 is a member that plays a role of housing the electronic device X <b> 1, the voice input unit 101, the voice output unit 102, and the key input unit 103. In addition, when the vibrating body 4 described above has a sound transmission function in addition to the tactile transmission function, the sound output unit 102 may be driven simultaneously with the sound transmission function, or the sound transmission function by the vibration body 4 by the user. It may be switched and driven.

  In addition, the portable terminal Y1 may include a short-distance wireless communication unit such as a digital camera function unit, a one-segment broadcasting tuner, an infrared communication function unit, and various interfaces depending on necessary functions. The illustration and description of the details of are omitted.

  Since the portable terminal Y1 includes the electronic device X1, it is possible to reduce the possibility that the vibrating body 4 is visually recognized by the user.

  In addition, although the example which provided the audio | voice input part 101 in the portable terminal Y1 was demonstrated above, it is not limited to this. That is, the voice input unit 101 may not be provided in the portable terminal Y1.

(Second Embodiment)
FIG. 7 is a plan view showing a schematic configuration of the electronic apparatus X2 according to the second embodiment. 8 is a cross-sectional view taken along line III-III in FIG. 9 is a cross-sectional view taken along line IV-IV in FIG. FIG. 10 is an enlarged view of a portion A2 in FIG. 7 to 10, configurations having the same functions as those in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIGS. 7 to 10, in the electronic device X2, the light shielding film 5 is provided on the second main surface 3b of the touch panel 3 corresponding to the light shielding region (non-operation region) E1. Is different from the electronic device X1 provided on the first main surface 3a of the touch panel 3 corresponding to the light shielding region E1. For this reason, in the electronic device X2, the vibrating body 4 is provided on the light shielding film 5.

  Here, the arrangement position of the vibrating body 4 with respect to the light shielding film 5 will be described. In FIG. 10, a light beam L1 indicates a light beam that passes through the edge portion of the light shielding film 5 and is refracted and transmitted through the second main surface 3b of the touch panel 3 at a refraction angle θc among the light from the edge portion of the vibrating body 4. . The refraction angle θc is an incident angle when the light beam L1 incident on the touch panel 3 enters the first main surface 3a, and is a critical angle of the touch panel 3 with respect to the air. In this case, in the in-plane direction of the touch panel 3, the distance D between the vibrating body 4 and the end portion 51 of the light shielding film 5 located on the light transmitting region (operation region) E 0 side which is the edge portion of the light shielding film 5 is When the refractive index of the touch panel 3 is n and the refractive index of air is 1, it is expressed by the following equation (6) using the above equation (3).

  Therefore, in the electronic device X2 according to the present embodiment, the vibrating body 4 is transparent on the second main surface 3b of the touch panel 3 corresponding to the light shielding region (non-operation region) E1 in the cross-sectional view shown in FIG. It is provided at a position separated from the end portion 51 of the light shielding film 5 located on the light region (operation region) E0 side by a distance D or more expressed by the above equation (6). That is, the distance D satisfies the following expression (7). With this configuration, the light beam reflected by the vibrating body 4 and traveling toward the touch panel 3 is reflected by the light shielding film 5 in the light shielding region E1 and is not incident on the touch panel 3, and the second light of the touch panel 3 is transmitted in the light transmitting region E0. Even if it is refracted and transmitted through the main surface 3b, it is totally reflected by the first main surface 3a and is not emitted outside the electronic device X1. Therefore, even if a user tries to look into the vibrating body 4 from any direction through the translucent area E0, the vibrating body 4 is prevented from being visually recognized.

  Further, in the electronic device X2, the light shielding film 5 is provided on the second main surface 3b of the touch panel 3 corresponding to the light shielding region E1, and the vibrating body 4 is provided on the light shielding film 5. For this reason, in electronic device X2, distance D by the above-mentioned formula (6) can be shortened compared with distance D by the above-mentioned formula (4) in electronic device X1. Therefore, in the electronic device X2, the light shielding area E1 can be made smaller than in the electronic device X1. As a result, the electronic device X2 can be downsized.

  As mentioned above, in said electronic device X2, possibility that the vibrating body 4 will be visually recognized with respect to a user can be reduced, and appearance can be improved. Further, the electronic device X2 can be downsized as compared with the electronic device X1.

  In addition, it is preferable that said light shielding film 5 contains the adhesive member which adhere | attaches the vibrating body 4 and the 2nd main surface 3b of the touch panel 3. FIG. Here, examples of the constituent material of the adhesive member include melamine resin, urea resin, phenol resin, vinyl acetate resin, epoxy resin, cyanoacrylate resin, acrylic resin, chloroprene rubber, styrene butadiene rubber, and the like. If the light shielding film 5 includes an adhesive member, it is not necessary to provide an adhesive member separately from the light shielding film 5, and the vibrating body 4 and the second main surface 3 b of the touch panel 3 can be adhered. In other words, it is not necessary to go through the two steps of forming the light shielding film and the step of forming the adhesive member, but only through one step of forming the light shielding film 5, the second of the vibrating body 4 and the touch panel 3. The main surface 3b can be adhered by the light shielding film 5. That is, it is preferable that the light shielding film 5 includes an adhesive member because the manufacturing process can be reduced.

(Third embodiment)
FIG. 11 is a plan view showing a schematic configuration of an electronic apparatus X3 according to the third embodiment. 12 is a cross-sectional view taken along line VV in FIG. FIG. 13 is an enlarged view of a portion A3 in FIG. 11 to 13, components having the same functions as those in FIGS. 1, 3, and 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIGS. 11 to 13, in the electronic device X <b> 3, the reflection suppressing film 9 is not provided on the surface 41 of the vibrating body 4 in that the reflection suppressing film 9 is provided on the surface 41 of the vibrating body 4. It differs from the electronic device X1.

  The reflection suppression film 9 has a reflectance that is lower than the reflectance of the surface 41 of the vibrating body 4. The antireflection film 9 is formed, for example, by printing a black pigment on the surface 41 of the vibrating body 4 or applying a black matting paint to the surface 41 of the vibrating body 4. Matte paints are those that add a matting agent (for example, fine powdered silica, polyethylene fine powder, etc.) to the paint to create micro unevenness on the surface of the paint film and make it glossy by irregular reflection of light. It is.

  In the present embodiment, the reflection suppressing film 9 is provided on the entire surface 41 of the vibrating body 4, but is not limited to this. For example, the reflection suppressing film 9 may be provided on a part of the surface 41 of the vibrating body 4.

  Here, as in the case of the electronic device X1, out of the light reflected by the vibrating body 4 to the second main surface 3b side of the touch panel 3, the light refracted and transmitted through the second main surface 3b with a refraction angle θc is It is reflected by the light shielding film 5 and is not emitted outside the electronic device X3. Further, the light that is refracted and transmitted through the second main surface 3b at a refraction angle θc or more is totally reflected by the first main surface 3a of the touch panel 3 and is not emitted outside the electronic device X1. Moreover, in the electronic device X3, since the reflection suppressing film 9 is provided on the surface 41 of the vibrating body 4, reflection of light incident from the liquid crystal panel 2 or the outside is suppressed in the reflection suppressing film 9. For this reason, in the electronic device X3, it is possible to reduce the light reflected from the reflection suppressing film 9 to the inside of the device and further reflected from the inside of the device and emitted from the translucent region E0 through the touch panel 3. Thus, it is possible to reduce the possibility of giving discomfort such as glare.

  As mentioned above, in said electronic device X3, possibility that the vibrating body 4 will be visually recognized with respect to a user can be reduced, and appearance can be improved. Moreover, in said electronic device X3, possibility that an unpleasant feeling, such as glare, may be given to a user can be reduced.

(Fourth embodiment)
FIG. 14 is a plan view showing a schematic configuration of an electronic apparatus X4 according to the fourth embodiment. 15 is a sectional view taken along line VI-VI in FIG. FIG. 16 is an enlarged view of a portion A4 in FIG. 14 to 16, components having the same functions as those in FIGS. 1, 3, and 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIGS. 14 to 16, the electronic device X <b> 4 is different from the electronic device X <b> 1 in that the vibrating body 4 is provided with an inclined portion 42.

  In the vibrating body 4 having a substantially rectangular parallelepiped shape, an inclined portion 42 is provided between the side surface 4c ′ closest to the light-transmitting region E0 and the back surface 4b among the four side surfaces 4c. Thus, in the electronic device X4, since the inclined part 42 is provided in the vibrating body 4, when the distance D is the same as that in FIG. 4, the vibrating body 4 is visually recognized by the user compared to the electronic device X1. It is possible to further reduce the possibility of being done. Further, since the inclined portion 42 is formed, the light beam that is refracted and transmitted through the second main surface 3b of the touch panel 3 from the inclined portion 42 at the refraction angle θc is represented by the solid line L1 as indicated by a virtual line in FIG. Is also located on the vibrating body 4 side. As a result, the distance D can be made smaller than in the case of FIG. 4, so that the electronic device X4 can be downsized when the same light-transmitting region E0 is secured.

  As mentioned above, in said electronic device X4, possibility that the vibrating body 4 will be visually recognized with respect to a user can be reduced more, and appearance can be improved more. Or in said electronic device X4, size reduction of electronic device X4 can be achieved simultaneously with reducing possibility that the vibrating body 4 will be visually recognized with respect to a user.

(Fifth embodiment)
FIG. 17 is a plan view showing a schematic configuration of an electronic apparatus X5 according to the fifth embodiment. 18 is a cross-sectional view taken along line VII-VII in FIG. 19 is a cross-sectional view taken along line VIII-VIII in FIG. 17 to 19, configurations having the same functions as those in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIGS. 17 to 19, the electronic device X <b> 5 includes a liquid crystal panel 10 having an input position detection function instead of the liquid crystal panel 2 and the touch panel 3 in the electronic device X <b> 1.

  The liquid crystal panel 10 is disposed to face the third main surface 6a of the base 6 via the space S1. The liquid crystal panel 10 is supported in the light shielding region E <b> 1 by a support 8 provided on the third main surface 6 a of the base 6. The liquid crystal panel 10 has a first main surface 10a and a second main surface 10b located on the opposite side of the first main surface 10a.

  The liquid crystal panel 10 includes a first substrate, a second substrate disposed opposite the first substrate, a liquid crystal layer interposed between the first substrate and the second substrate, and a display disposed between the first substrate and the second substrate. The display member layer which contributes to 1 and the light detection part provided on the one board | substrate are provided. This light detection unit corresponds to an input position detection function. By placing a finger on the liquid crystal panel 10 in a state where external light is incident on the light detection unit, external light incident on the light detection unit corresponding to the finger is blocked. Thereby, in the liquid crystal panel 10, the input position can be detected by comparing the detection level of the light detection unit on which external light is incident with the detection level of the light detection unit on which no external light is incident. it can.

(Sixth embodiment)
FIG. 20 is a cross-sectional view of main parts of an electronic device X6 according to the sixth embodiment. FIG. 20 is an enlarged view of the vicinity of the vibrating body 4 in the electronic apparatus X6 as in FIG. 20, components having the same functions as those in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  The electronic device X6 includes an electronic component 15. The electronic component 15 is, for example, a camera (in-camera), an illuminance sensor, or an infrared transmission / reception unit. The electronic component 15 is disposed near the end of the panel 3. The electronic component 15 is arranged on the second main surface 3b of the panel 3 on the side opposite to the light transmitting region E0 side with respect to the vibrating body 4. The electronic component 15 is disposed between the vibrating body 4 and the frame body 7. The electronic component 15 may or may not be in contact with the second main surface 3b.

The electronic component X is disposed in the electronic device X6. Therefore, as shown in FIG. 20, the distance between the end 51 of the light shielding film 5 and the end of the electronic component 15 on the light transmitting region E0 side is L, and the second main surface 3b in the sectional view of the vibrating body 4 If the length along the line is W, the above-mentioned distance D needs to satisfy the following equation (8).
D ≦ L−W (8)

  The region of the light shielding film 5 that faces the electronic component 15 in the thickness direction of the panel 3 does not interfere with the light emitting operation or the light receiving operation of the electronic component 15 and has a light transmittance that is difficult for the electronic component 15 to be visually recognized from the outside. You may do it.

  The condition shown in the above equation (8) is not only the configuration in which the light shielding film 5 is provided on the first main surface 3a shown in FIG. 20, but also the configuration in which the light shielding film 5 is provided on the second main surface 3b as shown in FIG. It is also applicable to.

  In the electronic device X6, the vibration body 4 and the electronic component 15 are arranged so that the above-described distance D satisfies either the formula (5) or the formula (7) and the formula (8). It is possible to make the vibrator 4 less visible to the user while effectively utilizing the internal space.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation or change is possible in the range which does not deviate from the meaning of invention. For example, in the above embodiment, the vibrating body 4 is provided on the touch panel 3 or the liquid crystal panel 10 having the input position detection function. For example, a display panel that does not have the input position detection function, such as a folding portable terminal, The vibrating body 4 may be provided on the protective panel or the like. Further, the light shielding portion is not limited to the light shielding film 5 formed by printing on a tape or a panel, and may be an opaque member that is attached to the housing of the device and disposed in contact with the panel, for example.

  In the fifth embodiment, an example of a liquid crystal panel including a light detection unit has been described as the liquid crystal panel 10 having an input position detection function. However, the present invention is not limited to this. For example, the liquid crystal panel 10 having an input position detection function may be a liquid crystal panel in which detection electrodes in a capacitive touch panel are directly formed on the other substrate of the liquid crystal panel 10. Further, instead of the liquid crystal panel 10, a display panel such as a plasma panel, an organic EL panel, or electronic paper having an input position detecting function may be used.

  Moreover, although the example of the portable terminal Y1 provided with the electronic device X1 was demonstrated above, it may replace with the electronic device X1 and may employ | adopt any of the electronic devices X2-X6. Moreover, you may employ | adopt the portable terminal provided with either of the electronic devices X2-X6. Moreover, you may combine embodiment mentioned above suitably. In the above description, the portable terminal Y1 is described as including the electronic devices X1 to X6, the audio input unit 101, the audio output unit 102, the housing 105, and the like, but is not limited thereto. The electronic devices X1 to X6 may include the audio input unit 101, the audio output unit 102, the housing 105, and the like.

  Furthermore, although the example which applied the electronic devices X1-X5 to the tactile sense transmission technique or the sound transmission technique was demonstrated above, it is not limited to this. The electronic devices X1 to X5 can be applied to, for example, a panel speaker technology that outputs sound in addition to the tactile transmission technology and the sound transmission technology.

X1 to X5 Electronic device Y1 Mobile terminal 2 Liquid crystal panel (display panel)
3 Touch panel (operation unit)
4 Vibrating body 42 Inclined part 5 Light shielding film 51 End part 6 Base body 8 Support body 9 Antireflection film 10 Liquid crystal panel 15 Electronic component E0 Light transmitting area E1 Light shielding area

Claims (12)

A translucent panel having a first main surface and a second main surface located on the opposite side of the first main surface;
A light shielding portion disposed on the first main surface of the panel;
A vibrating body disposed at a position facing the light shielding portion on the second main surface of the panel,
The region of the panel that does not face the light shielding portion in the thickness direction of the panel forms a light transmitting region,
The refractive index of the panel is n, the critical angle of the panel with respect to the air is θc, the thickness of the panel is t1, the thickness of the vibrating body is t2, and the vibration body in the cross-sectional view in the thickness direction of the panel When the distance between the end on the translucent area side and the end on the translucent area side of the light shielding part is D,

An electronic device characterized by satisfying A translucent panel having a first main surface and a second main surface located on the opposite side of the first main surface;
A light shielding portion disposed on the second main surface of the panel;
A vibrating body disposed on the light shielding portion,
The region of the panel that does not face the light shielding portion in the thickness direction of the panel forms a light transmitting region,
The refractive index of the panel is n, the critical angle of the panel with respect to air is θc, the thickness of the vibrating body is t2, the end of the vibrating body on the light-transmitting region side in a cross-sectional view in the thickness direction of the panel, and the When the distance between the light-shielding portion and the end of the light-transmitting region is D,

An electronic device characterized by satisfying   The electronic device according to claim 1, wherein the light shielding portion is formed of a light shielding film bonded to the panel. The light shielding part is made of a light shielding film including an adhesive member,
The electronic device according to claim 2, wherein the vibrating body is bonded to the second main surface of the panel through the light shielding film by the adhesive member.   The electronic device according to any one of claims 1 to 4, wherein a reflection suppressing film having a reflectance lower than that of the surface is provided on a surface of the vibrating body.   The vibrating body has a facing surface facing the second main surface of the panel, a back surface located on the opposite side of the facing surface, and four side surfaces adjacent to the facing surface and the back surface, The electronic device according to any one of claims 1 to 5, wherein an inclined portion is provided between a side surface closest to the light-transmitting region among the four side surfaces and the back surface. The panel is a touch panel,
A substrate having a third principal surface;
A support body provided on the third main surface of the base body and supporting the touch panel in a region where the light shielding portion is disposed;
7. The display panel according to claim 3, further comprising: a display panel provided on the third main surface of the base body and disposed to face the operation unit with a space interposed therebetween. Electronic equipment. The panel is a display panel having an input position detection function,
A substrate having a third principal surface;
The support body which is provided on the 3rd principal surface of the base, and supports the display panel in the field where the shade part is arranged. The electronic device described.   The electronic device according to claim 7 or 8, wherein the display panel is a liquid crystal panel or an organic EL panel. An electronic component disposed on the opposite side of the vibrating body from the light transmitting region side;
In a cross-sectional view in the thickness direction of the panel, L is a distance between an end portion of the light shielding portion on the light transmitting region side and an end portion of the electronic component on the light transmitting region side, and the thickness direction of the panel When the length along the second main surface of the vibrator in the cross-sectional view is W, the distance D is
D ≦ L−W
The electronic device according to claim 1, wherein A translucent panel having a first main surface and a second main surface located on the opposite side of the first main surface;
A light shielding portion disposed on the first main surface of the panel;
A vibrating body disposed at a position facing the light shielding portion on the second main surface of the panel,
The region of the panel that does not face the light shielding portion in the thickness direction of the panel is an assembly method of an electronic device that forms a light-transmitting region,
The refractive index of the panel is n, the critical angle of the panel with respect to the air is θc, the thickness of the panel is t1, the thickness of the vibrating body is t2, and the vibration body in the cross-sectional view in the thickness direction of the panel When the distance between the end on the translucent area side and the end on the translucent area side of the light shielding part is D,

The method for assembling an electronic device is characterized in that the light shielding portion and the vibrating body are arranged with respect to the panel so as to satisfy the above. A translucent panel having a first main surface and a second main surface located on the opposite side of the first main surface;
A light shielding portion disposed on the second main surface of the panel;
A vibrating body disposed on the light shielding portion,
The region of the panel that does not face the light shielding portion in the thickness direction of the panel is an assembly method of an electronic device that forms a light-transmitting region,
The refractive index of the panel is n, the critical angle of the panel with respect to air is θc, the thickness of the vibrating body is t2, the end of the vibrating body on the light-transmitting region side in a cross-sectional view in the thickness direction of the panel, and the When the distance between the light-shielding portion and the end of the light-transmitting region is D,

The method for assembling an electronic device is characterized in that the light shielding portion and the vibrating body are arranged with respect to the panel so as to satisfy the above.

Images