JP2005269066A - Apparatus provided with receiving function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the external sound shield performance when receiving a speech and the voice quality of the received voice, enhance a space efficiency with respect to a display section, and improve the flexibility of a relationship between the layout and the size of the display section and the layout and the size of a structure for enhancing the external sound shield performance and the voice quality of the received voice. <P>SOLUTION: A mobile phone 1 is provided with: a liquid crystal display unit 3 and a receiving speaker 4 located in a housing 2; and a sound shield space forming member 8 made of a transparent resin located in the housing 2. The sound shield space forming member 8 is overlapped with a display area of the liquid crystal display unit 3. The sound shield space forming member 8 has a recess 8a for forming a sound shield space communicatively connected to the ear hole of a user during reception. A part 8b around the recess 8a in the sound shield space forming member 8 acts like a press contact part that is pressed into contact with the surrounding part of the ear hole of the user during reception. The sound shield space forming member 8 includes an opening part 8c that is opened to the recess 8a and introduces the voice from the speech receiving speaker 8 to the sound shield space. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a device having a receiving function, such as a handset or a transceiver of a mobile phone or a cordless phone.

  Conventionally, a ring-shaped sound insulation member surrounding the earpiece hole and the display unit is combined with a surface portion on one side of the telephone main body, so that a sound insulation space portion that covers the periphery of the applied auricle and shields external sound has been provided. A cellular phone configured has been proposed (Patent Document 1 below).

According to this conventional mobile phone, the ring-shaped sound insulation member, when applied to the user's ear, forms a sound insulation space portion that covers the periphery of the auricle and shields the external sound. It is possible to listen to the received sound clearly even in a place where the sound is loud. Further, since the sound insulation space portion approaches the sealed space at the time of reception, the sound quality of the reception sound can be improved. Furthermore, according to this conventional mobile phone, since the ring-shaped sound insulating member surrounds the display unit, the display unit is disposed in the sound insulating space, thereby having a large display unit in a limited housing. A display can be installed, and the space efficiency can be improved as well as the usability.
JP-A-8-149189

  However, in the conventional mobile phone, there is a restriction that the ring-shaped sound insulating member must be disposed so as to surround the display unit so as not to disturb the display of the display unit. The flexibility of the relationship between the arrangement and size of the display was low. For this reason, it has been difficult to achieve a sufficient balance between improving the quality of the received sound and improving the visibility of the display. That is, when the arrangement and size of the sound insulating member are determined so as to optimize the sound quality of the received sound, if the display unit is arranged in the region surrounded by the sound insulating member, the area of the display unit is not necessarily sufficiently ensured. This makes it impossible to display the display unit at a position where it is easy to see, and the visibility of the display deteriorates. On the other hand, when a ring-shaped sound insulation member is disposed so as to surround the display portion after optimization of display visibility, it is difficult to optimize the sound quality of the received sound.

  The present invention has been made in view of such circumstances, and can improve the sound insulation of the external sound during reception and the sound quality of the reception sound, and can improve the space efficiency related to the display unit. It has a receiving function that can increase the flexibility of the arrangement and size of the structure and the display unit and the relationship between the size and the structure for improving the sound insulation and the sound quality of the received sound during reception An object is to provide an apparatus.

  In order to solve the above-mentioned problem, an apparatus having a reception function according to the first aspect of the present invention is an apparatus having a display unit and having a reception function, further comprising a sound insulation space forming member provided in a casing of the apparatus. The sound insulation space forming member has a recess that forms a sound insulation space communicating with the user's ear canal during reception, and a portion around the recess in the sound insulation space forming member is a peripheral portion of the user's ear hole during reception The sound insulation space forming member has an opening that opens in the concave portion and guides the sound from the electroacoustic conversion means for reception to the sound insulation space, and the sound insulation space formation member It overlaps at least a part of the display area of the display part, and at least a part of the display part of the sound insulation space forming member is so viewed as to be visually recognized through the sound insulation space formation member. Overlap between display region is one that is configured to be transparent.

  According to the first aspect, when a portion around the concave portion of the sound insulating space forming member is brought into contact with the peripheral portion of the user's ear hole during reception, the sound insulating portion in which the concave portion of the sound insulating space forming member communicates with the user's ear hole. It becomes a space, and this sound insulation space approaches a state sealed with respect to the outside. Therefore, it is possible to hear the received sound clearly even in a place where the external sound is blocked during reception and the outside sound is loud, such as outdoors, and the sound quality of the received sound can be improved.

  According to the first aspect, the sound insulation space forming member overlaps at least a part of the display area of the display unit, and at least the overlap part of the sound insulation space formation member with the display area of the display unit is transparent. In addition, since at least a part of the display on the display unit is visually recognized through the sound insulation space forming member, a large display unit can be arranged in a limited housing, and space efficiency can be improved.

  Furthermore, according to the first aspect, the sound insulation space forming member is configured to be transparent so that at least the overlapping portion with the display area of the display portion is transparent, so that the sound insulation space formation member prevents display of the display portion. The portion around the recess of the sound insulation space forming member (the contact portion that contacts the periphery of the user's ear canal, that is, the structure for improving the sound insulation of the external sound during reception and the sound quality of the reception sound) ) And the arrangement and size of the display section are reduced, and the flexibility of the relationship between the two can be increased. Therefore, according to the said 1st aspect, the improvement of the sound quality of a received sound and the improvement of the visibility of a display can be made compatible at a higher level.

  The apparatus having a reception function according to the second aspect of the present invention is the first aspect, wherein the sound insulating space forming member overlaps the entire display area of the display unit, and the sound insulating space forming member is a front surface of the display unit. It is also used as a cover.

  According to the second aspect, since the sound insulation space forming member is also used as the front cover of the display unit, the structure is simplified, the number of parts is reduced, and the price can be reduced.

  An apparatus having a reception function according to a third aspect of the present invention is the apparatus according to the first or second aspect, wherein the surface of the concave portion forms a substantially spherical three-dimensional curved surface.

  According to the third aspect, since the surface of the concave portion of the sound insulation space forming member forms a substantially spherical three-dimensional curved surface, the sound quality of a good reception sound can be obtained by using this curved surface simultaneously acoustically and optically. And good visibility of display can be achieved.

  The apparatus having a reception function according to the fourth aspect of the present invention is the apparatus according to any one of the first to third aspects, wherein the sound insulation space forming member is made of polycarbonate or other transparent resin.

  The fourth aspect is an example of the material of the sound insulation space forming member, but the first to third aspects are not limited to this example.

  In the device having a reception function according to the fifth aspect of the present invention, in any one of the first to fourth aspects, the shape of the periphery of the recess is a substantially circular shape or a substantially oval shape. The diameter or short axis diameter is in the range of 35 mm to 55 mm.

  As in the fifth aspect, it is preferable to set the diameter of the peripheral edge of the recess or the diameter of the short axis in the range of 35 mm to 55 mm in order to achieve both the improvement of the sound quality of the received sound and the feeling of hearing. The diameter of the peripheral edge of the recess or the diameter of the short axis is more preferably in the range of 40 mm to 50 mm, and even more preferably about 45 mm.

  An apparatus having a reception function according to a sixth aspect of the present invention is the apparatus according to any one of the first to fifth aspects, wherein the depth in the vicinity of the central region in the recess is 3 mm or more.

  If the depth in the vicinity of the center region in the recess is 3 mm or more as in the sixth aspect, the pressing force on the projections of the user's auricle is not excessive when receiving a call and the feeling of ear contact is improved. Therefore, it is preferable.

  The device having a reception function according to the seventh aspect of the present invention is the device according to any one of the first to sixth aspects, wherein a light shielding mask means is provided in a predetermined region on the back surface of the sound insulation space forming member. It is. As this mask means, for example, painting, thin plate, film or the like can be used.

  If the mask means is used as in the seventh aspect, for example, the entire sound insulating space forming member is made of the same transparent material, a relatively large opening is formed in the housing, and the opening is formed as the sound insulating space forming member. The sound insulation space forming member can be provided in the housing so as to be closed by the case. However, in the first to sixth aspects, the housing itself can be used in place of the mask means.

  The apparatus having a reception function according to the eighth aspect of the present invention is the sound insulation space according to any one of the first to sixth aspects, such that the visible shape of the display area of the display unit is a predetermined shape. The actual shape of the display area of the display unit is distorted in advance with respect to the predetermined shape in accordance with the refraction effect by the forming member.

  The apparatus having a reception function according to the ninth aspect of the present invention is characterized in that, in the seventh aspect, the refraction effect by the sound insulation space forming member is such that the visible shape of the display area of the display unit becomes a predetermined shape. Accordingly, the actual shape of the display area of the display unit or the shape of the non-light-shielding area by the mask means is distorted in advance with respect to the predetermined shape.

  In the first to seventh aspects, even if the actual shape of the display area of the display unit or the shape of the non-light-shielding area by the masking means (the shape of the display window) is a predetermined shape such as a rectangular shape, the sound insulation space forming member Due to the refraction effect, the visible shape of the display area of the display unit may be distorted instead of the predetermined shape, and the display unit may not look good. In the eighth and ninth embodiments, the actual shape of the display area of the display section or the shape of the non-light-shielding area by the masking means is distorted in advance, thereby distorting the visible shape of the display area of the display section. Can be corrected, and the appearance of the display portion can be improved.

  A device having a reception function according to the tenth aspect of the present invention is the device according to any one of the first to ninth aspects, wherein the device is a mobile phone.

  The tenth aspect is an example in which the first to ninth aspects are applied to a mobile phone. However, the first to ninth aspects are not limited to a mobile phone. The present invention can be applied to various devices (including portable devices) having a reception function such as a slave unit and a transceiver.

  According to the present invention, it is possible to improve the sound insulation property of the external sound during reception and the sound quality of the reception sound, improve the space efficiency regarding the display unit, and further, the sound insulation property of the external sound during reception and It is possible to provide a device having a reception function that can increase the flexibility of the relationship between the arrangement and size of the structure for improving the sound quality of the received sound and the arrangement and size of the display unit.

  Hereinafter, an apparatus having a reception function according to the present invention will be described with reference to the drawings.

  [First Embodiment]

  FIG. 1 is a diagram showing a main part of a mobile phone 1 as a device having a receiving function according to a first embodiment of the present invention. FIG. FIG. 1 and FIG. 1B are schematic front views. 2 is a view showing the sound insulation space forming member 8 in FIG. 1, FIG. 2 (a) is a front view, FIG. 2 (b) is an AA ′ arrow view in FIG. 2 (a), FIG. FIG. 2C is a rear view, and FIG. 2D is a diagram showing a coating region R2 with a light-shielding paint on the back surface (back surface) of the sound insulation space forming member 8.

  As shown in FIG. 1, a mobile phone 1 according to the present embodiment has a liquid crystal display 3 as a display unit for displaying a telephone number display 3a, a radio wave state display 3b, etc. And a receiving speaker 4 as an electroacoustic conversion means for receiving is provided in the housing 2. Further, the mobile phone according to the present embodiment includes various operation buttons 5, an antenna 6, and a transmitter 7 provided on the housing 2.

  And the mobile telephone 1 by this Embodiment is provided with the sound insulation space formation member 8 provided in the housing | casing 2, as shown in FIG.

  In the present embodiment, the sound insulation space forming member 8 is made of polycarbonate or other transparent resin, and has a substantially rectangular shape in plan view, as shown in FIG. It is configured in the form as provided. On the front side of the housing 2, an opening 2 a is formed in a relatively large rectangular area including an area where the reception speaker 4 and the liquid crystal display 3 are disposed. The sound insulation space forming member 8 is provided in the housing 2 by joining the housing 2 with an adhesive or the like so as to close the opening 2a of the housing 2. Thus, the sound insulation space forming member 8 overlaps the entire display area of the liquid crystal display 3 and is also used as a front cover of the liquid crystal display 3.

  As shown in FIG. 2, a concave portion 8a is formed on the surface side of the sound insulation space forming member 8 to form a sound insulation space communicating with the user's ear hole during reception. A portion 8b around the concave portion 8a in the sound insulation space forming member 8 serves as a contact portion that contacts the peripheral portion of the user's ear hole during reception. In the present embodiment, the surface of the recess 8a forms a substantially spherical three-dimensional curved surface. In the present embodiment, the shape of the periphery of the recess 8a is an elliptical shape that is close to a circle. In the present invention, the shape of the periphery of the recess 8a may be a substantially circular shape, a substantially elliptical shape, a long hole shape, or another shape (for example, a rectangular shape). In order to achieve both improvement in the quality of the received sound and a feeling of hearing, the diameter of the periphery or the minor axis of the recess 8a is preferably in the range of 35 mm to 55 mm, and preferably in the range of 40 mm to 50 mm. More preferably, it is more preferably about 45 mm. In order to prevent an excessive pressing force from being applied to the projections of the user's pinna during reception, it is preferable that the depth in the vicinity of the central region of the recess 8a is 3 mm or more.

  The sound insulation space forming member 8 is formed with an opening 8c that opens in the recess 8a and guides the sound from the reception speaker 4 to the sound insulation space. In the present embodiment, three openings 8 c are formed in a slit shape at positions facing the reception speaker 4. However, the number and shape of the openings 8c are not limited at all.

  In the present embodiment, on the back surface of the sound insulation space forming member 8, the region R2 other than the region R1 that becomes the display window of the liquid crystal display 3 (the hatched region in FIG. 2D) is shielded from light. A light-shielding paint (not shown) is applied as a mask means. As the mask means, instead of applying a light-shielding paint, for example, a light-shielding plate or film may be attached. If necessary, the actual shape of the display area of the liquid crystal display 3 or the above-described shape is determined according to the refraction effect of the sound insulation space forming member 8 so that the visible shape of the display area of the liquid crystal display 3 becomes a rectangular shape. The shape of the non-light-shielding region R1 with the light-shielding paint may be distorted in advance with respect to the rectangular shape.

  According to the present embodiment, when the portion 8b around the concave portion 8a of the sound insulating space forming member 8 is brought into contact with the peripheral portion of the user's ear hole during reception, the concave portion 8a of the sound insulating space forming member 8 becomes the user's ear hole. It becomes a sound insulation space communicating with the sound insulation space, and this sound insulation space approaches a state sealed against the outside. Therefore, it is possible to hear the received sound clearly even in a place where the external sound is blocked during reception and the outside sound is loud, such as outdoors, and the sound quality of the received sound can be improved.

  Further, according to the present embodiment, the sound insulation space forming member 8 overlaps with the liquid crystal display 3, and the sound insulation space forming member 8 is transparent, and the display of the liquid crystal display 3 displays the sound insulation space forming member 8. Therefore, it is possible to arrange a large display portion in the limited housing 2 and improve space efficiency.

  Furthermore, according to the present embodiment, since the overlapping portion of the sound insulation space forming member 8 with the display area of the liquid crystal display 3 is configured to be transparent, the sound insulation space forming member 8 is provided on the liquid crystal display 3. The display is not obstructed, and there is less restriction between the arrangement and size of the portion 8b around the concave portion of the sound insulation space forming member 8 and the arrangement and size of the display area of the liquid crystal display 3, and between them Increase the flexibility of the relationship. Therefore, according to the present embodiment, it is possible to achieve both higher sound quality of received sound and higher display visibility at a higher level.

  Furthermore, according to the present embodiment, the sound insulation space forming member 8 overlaps the entire display area of the liquid crystal display 3, and the sound insulation space forming member 8 is also used as the front cover of the liquid crystal display 3. Can be simplified and the number of parts can be reduced, thereby reducing the price. However, in the present invention, depending on the design, the sound insulation space forming member 8 is configured to overlap with a part of the liquid crystal display 3, and a part of the display of the liquid crystal display 3 is visually recognized without the sound insulation space forming member 8 being interposed. It may be configured as described.

  In addition, according to the present embodiment, the surface of the concave portion 8a of the sound insulation space forming member 8 forms a substantially spherical three-dimensional curved surface, so that this curved surface can be used acoustically and optically at the same time. Therefore, it is possible to achieve both good sound quality of received sound and good display visibility. However, in the present invention, the shape of the surface of the recess 8a is not limited to this shape, and may be, for example, a cylindrical surface having a flat bottom surface.

  In the present embodiment, the region R2 on the back surface of the sound insulation space forming member 8 is coated with the light shielding paint as the mask means as described above. As shown in FIG. 3, the housing 2 itself can be used in place of the mask means. FIG. 3 is a schematic side view showing a modification of the mobile phone 1 according to the present embodiment, with a part of the housing 2 cut away, and corresponds to FIG. In the example shown in FIG. 3, an opening 2b formed in a region corresponding to the display window of the liquid crystal display 3a instead of the relatively large opening 2a in FIG. An opening 2 c communicating with the opening 8 c of the sound insulation space forming member 8 is formed at a position facing the speaker 4.

  [Second Embodiment]

  4A and 4B are diagrams showing a mobile phone 11 according to the second embodiment of the present invention. FIG. 4A is a schematic side view in which a part of the housing 2 is cut out, and FIG. 4B is a schematic front view. FIG. 5 is a view showing the sound insulation space forming member 8 in FIG. 4, FIG. 5 (a) is a front view, FIG. 5 (b) is a BB ′ arrow view in FIG. 5 (a), FIG. FIG. 5C is a rear view, and FIG. 5D is a diagram showing a coating region R2 with a light-shielding paint on the back surface (back surface) of the sound insulation space forming member 8. 4 and 5, elements that are the same as or correspond to those in FIGS. 1 and 3 are given the same reference numerals, and redundant descriptions thereof are omitted.

  The cellular phone 11 according to the present embodiment is different from the cellular phone 1 according to the first embodiment in that the liquid crystal display 3 is disposed near the center of the sound insulation space forming member 8 and has a relatively large diameter as the reception speaker 4. A large speaker is used and is arranged on the back of the liquid crystal display 3, and only the openings 8 c for guiding the sound from the receiving speaker 4 to the sound insulation space are arranged on both sides of the liquid crystal display 3 one by one.

  Also in this embodiment, the same advantages as those in the first embodiment can be obtained.

  As mentioned above, although each embodiment and modification of this invention were demonstrated, this invention is not limited to these.

  For example, each of the above-described embodiments is an example in which the present invention is applied to a mobile phone, but the present invention is also applicable to a device having a receiving function other than the mobile phone (for example, a cordless phone slave unit or a transceiver). can do.

It is a figure which shows the mobile telephone by the 1st Embodiment of this invention. It is a figure which shows the sound insulation space formation member in FIG. It is a partially cut away schematic side view which shows the principal part of the modification of the mobile telephone shown in FIG. It is a figure which shows the mobile telephone by the 2nd Embodiment of this invention. It is a figure which shows the sound insulation space formation member in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,11 Mobile phone 2 Case 2a Opening 3 Liquid crystal display 4 Earpiece speaker 8 Sound insulation space forming member 8a Concave portion 8b Periphery of the concave portion (contact portion)
8c opening

Claims (10)

An apparatus having a display unit and a receiving function,
It further comprises a sound insulation space forming member provided in the housing of the device,
The sound insulation space forming member has a recess that forms a sound insulation space communicating with the user's ear canal during reception,
The portion around the recess in the sound insulation space forming member becomes a contact portion that contacts the ear hole periphery of the user during reception,
The sound insulation space forming member has an opening that opens in the recess and guides the sound from the electroacoustic conversion means for reception to the sound insulation space,
The sound insulation space forming member overlaps at least a part of the display area of the display unit;
The sound insulation space forming member is configured to be transparent so that at least a portion overlapping the display area of the display portion is transparent so that at least a part of the display of the display portion is visually recognized through the sound insulation space forming member. ,
A device having a receiving function characterized by the above. The sound insulation space forming member overlaps the entire display area of the display unit,
2. The apparatus having a reception function according to claim 1, wherein the sound insulation space forming member is also used as a front cover of the display unit.   3. The apparatus having a receiving function according to claim 1, wherein the surface of the concave portion forms a substantially spherical three-dimensional curved surface.   4. The apparatus having a reception function according to claim 1, wherein the sound insulation space forming member is made of polycarbonate or other transparent resin.   The shape of the peripheral edge of the concave portion is a substantially circular shape or a substantially elliptical shape, and the peripheral edge diameter or minor axis diameter of the concave portion is in the range of 35 mm to 55 mm. A device having the described reception function.   The apparatus having a reception function according to claim 1, wherein a depth in the vicinity of a central region of the concave portion is 3 mm or more.   7. The apparatus having a reception function according to claim 1, wherein a light shielding mask means is provided in a predetermined area on the back surface of the sound insulation space forming member.   The actual shape of the display area of the display unit is pre-distorted with respect to the predetermined shape according to the refraction effect by the sound insulation space forming member so that the visible shape of the display area of the display unit becomes a predetermined shape. The apparatus having a reception function according to claim 1, wherein the apparatus has a reception function.   Depending on the refraction effect by the sound insulation space forming member, the actual shape of the display area of the display section or the non-light-shielding area by the mask means is set so that the shape of the display area of the display section is a predetermined shape. 8. The apparatus having a receiving function according to claim 7, wherein the shape is distorted in advance with respect to the predetermined shape.   10. The apparatus having a receiving function according to claim 1, wherein the apparatus is a mobile phone.

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