JP2006340077A - Portable communication equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem wherein a display part and a key input part interfere with each other and the enlargement of the display part is constrained since the display part and the key input part are arranged side by side on a substrate or a chassis inside the same case body. <P>SOLUTION: The portable communication equipment comprises: the case body 101 housing a circuit board 106 on which an electronic circuit is mounted and the display part 102 electrically connected with the circuit board 106 in the inside; and the key input part 103 which is provided with a switch for generating electric signals corresponding to the pressed one of a plurality of buttons 107, and transmits the electric signals generated by the switch to the circuit board 106 incorporated in the case body 101 through a through-hole 114 passing through the inner side and outer side of the case body, formed in a position where the button and the switch are provided on the external surface of the case body. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a portable communication device such as a cellular phone configured by an upper casing having a display unit and an operation unit and a lower casing having an operation unit.

  As a type of the current mobile phone, a double-folded mobile phone in which an upper case having at least a display unit and a lower case having an operation unit are rotatably connected via a hinge, and an upper case There is a slide type mobile phone in which the lower casing is slidably connected. In particular, in a slide-type mobile phone, an operation unit and a lower case having a transmitter are relatively moved relative to an upper case having a display unit, and the operation unit of the lower case is moved to the upper case. From the “closed state” covered by the body, the display unit and the receiving unit of the upper casing, and the operation section of the lower casing are both exposed to the “open state”. Since the slide-type mobile phone is closed and the display part of the upper housing is exposed, basic operations as a communication device such as making and receiving calls and checking e-mails can be executed in a closed state. An operation unit is also provided in the upper casing. In addition, since the display unit is always exposed, the slide type mobile phone is suitable for enjoying an application such as a moving image while being placed on the charging holder. Therefore, it is conceivable that the display unit will be further enlarged in the future within the limits of the size and weight of the mobile phone.

  Patent Document 1 discloses a portable device in which an LCD holder for holding a liquid crystal display device as a display unit and a key print board for receiving input from a keypad as an operation unit are provided in the same housing. Yes. Specifically, the liquid crystal display device and the key input device are arranged side by side on a substrate or a chassis, and both the liquid crystal display device and the key input device are held and fixed to the housing from the inside of the housing.

JP 2001-284854 A

  By the way, since the liquid crystal display device and the key input device are arranged side by side on the substrate or the chassis in the same casing in the mobile phone disclosed in Patent Document 1, the liquid crystal display device and the key input device interfere with each other. In order to increase the size of the liquid crystal display device with the above-described configuration, the casing is enlarged so that the liquid crystal display device and the key input device do not interfere with each other, or the liquid crystal display device is enlarged, and the key input device is reduced in size. There is a need to. SUMMARY OF THE INVENTION An object of the present invention is to provide a mobile phone that can be provided with a large-screen liquid crystal display device without enlarging a case and ensuring a size with good operability in a key input device. .

  The portable communication device according to the present invention includes a receiving unit that outputs an audio signal based on a received signal received by a wireless unit, a circuit board on which an electronic circuit is mounted, and the wireless unit that is electrically connected to the circuit board. A housing that houses a display unit that can display image information based on the received signal, and a switch that generates an electrical signal corresponding to the pressed button among a plurality of buttons. Provided with a key input part for transmitting an electrical signal generated by the switch to the circuit board through a through-hole penetrating the inside and outside of the housing formed at a position where a plurality of buttons and switches are provided It is.

  The portable communication device according to the present invention includes a receiving unit that outputs an audio signal based on a received signal received by a wireless unit, a circuit board on which an electronic circuit is mounted, and the wireless unit that is electrically connected to the circuit board. A housing that houses a display unit that can display image information based on the received signal, and a switch that generates an electrical signal corresponding to the pressed button among a plurality of buttons. And a key input unit for transmitting an electrical signal generated by the switch to the circuit board through a through-hole penetrating the inside and outside of the housing formed at a position where a plurality of buttons and switches are provided. The display unit and the key input unit do not interfere with each other. Therefore, it is possible to prevent the cellular phone from becoming large while increasing the size of the display unit and keeping the size of the key input unit appropriate.

Embodiment 1 FIG.
FIG. 1 is an external perspective view showing an external appearance of a mobile phone according to Embodiment 1 of the present invention. FIG. 1A is an external perspective view showing a state in which the slide type mobile phone is opened, and FIG. 1B is an external perspective view showing a state in which the slide type mobile phone is closed. In FIG. 1, an upper casing 101 is provided with a liquid crystal display unit 102 that is a display unit for displaying image information, a key input unit 103, a receiver unit 104, and a camera 121. In addition, the lower housing 201 is provided with a key input unit 202 and a transmission unit 203. As shown in FIG. 1A, in a state where the upper casing 101 and the lower casing 201 are opened, the liquid crystal display unit 102, the key input unit 103, the receiver 104, and the lower casing of the upper casing 101 are displayed. Both the operation units 202 of 201 are exposed. On the other hand, as shown in FIG. 1B, when the upper casing 101 and the lower casing 201 are closed, the liquid crystal display unit 102, the key input unit 103, and the receiver 104 of the upper casing 101 are exposed. However, the operation unit 202 of the lower casing 201 is covered with the upper casing 101.

  In the slide type mobile phone as shown in FIG. 1, for example, two grooves extending along the longitudinal direction of the upper casing 101 are formed on the back side of the upper casing 101. Each groove is formed so as to penetrate the outer side and the inner side of the upper casing 101, and a slide module (sliding mechanism) is provided inside the upper casing 101 along the groove. A general slide module includes a slide rail and an actuator that moves along the slide rail, and the upper housing 101 and the lower housing 201 are slidably coupled by the actuator. Since the slide module itself that has been conventionally used can be applied to the present invention, a detailed description of its configuration is omitted.

  FIG. 2 is an exploded perspective view showing the upper casing of the mobile phone according to the present invention in an exploded manner. In FIG. 2, the same reference numerals as those shown in FIG. The upper case 105 is configured by combining the upper case 105 and the lower case 108 and further providing the window panel 111 and the key panel 112 on the upper case 105. A liquid crystal display unit 102 and a circuit board 106 are accommodated in a housing in which the upper case 105 and the lower case 108 are combined. Various processing devices for displaying an image on the liquid crystal display unit 102 and processing a key input signal from the keypad 107 are mounted on the circuit board 106. The liquid crystal display unit 102 and the circuit board 106 are electrically connected by an LCD connector 120. In addition to the liquid crystal display unit 102, the various processing devices mounted on the circuit board 106 are electrically connected to processing devices such as a wireless circuit, an arithmetic device, and a memory provided in the lower housing 201. . The lower case 108 is formed with a flexible hole 115 through which the lower casing connecting flexible board 109 is passed. The lower casing connecting flexible board 109 is connected between the circuit board 106 and the processing apparatus inside the lower casing. Communicate the signal.

  The key input unit 103 includes a switch that outputs a signal corresponding to the pressed button of the keypad 107 formed with a plurality of buttons using a base rubber or the like to the circuit board 106. Correspondingly, a signal corresponding to the pressed button is generated by a dome switch provided on the board and output to the circuit board 106. The key input unit 103 and the circuit board 106 are electrically connected by a key input flexible substrate 110 having one end connected to the key input unit 103 and a key connector 119 (see FIG. 4) connected to the circuit board 106 connected to the other end. Connected to. Outside the upper case 105, there are provided a key input unit mounting unit 117 on which the key input unit 103 is mounted, and a slit 114 for introducing the key input flexible board 110 into the upper case 105. The key input flexible board 110 connected to the key input unit 103 is introduced into the upper case 105 from the slit 114, and a key connector 119 provided at an end of the key input flexible board 110 is connected to the circuit board 106.

  The upper case 105 is formed with an opening 116 having substantially the same size as the display surface 118 of the liquid crystal display unit 102. With the upper case 105 and the lower case 108 combined, the display surface 118 of the liquid crystal display unit 102 is Visible from the outside of the upper case 105 through the opening 116. The opening 116 is covered with a window panel 111 that is installed and fixed to the upper case 105 with a tape 113. On the other hand, the key input unit 103 placed on the key input unit placement unit 117 provided outside the upper case 105 and the keypad 107 placed at a predetermined position on the key input unit 103 are the keypad 103. The key panel 112, which is a panel member provided with a button hole at a position corresponding to the button formed in, is fitted and fixed in the upper case 105.

  FIG. 3 is a cross-sectional view showing a cross section of the upper casing of the mobile phone according to the present invention. 3A illustrates a cross section of a portion of the upper housing 101 where the key input unit 103 is disposed, and FIG. 3B illustrates a circle B in the cross sectional view of FIG. The cross section surrounded by is enlarged and illustrated. In FIG. 3, the same reference numerals as those in FIG. As shown in FIG. 3, the mobile phone according to the present invention includes a key input unit 103 provided outside the upper case 105, and a circuit board 106 provided inside the upper case 105. The key input unit 103 on the outer side of the upper case 105 and the circuit board 106 on the inner side of the upper case 105 are electrically connected to each other by a key input flexible substrate 110 that is passed through a slit 114. Inside the upper case 105, the key input flexible board 110 is connected to the circuit board 106 by a key connector 119. The circuit board 106 is connected to the liquid crystal display unit 102 by the LCD connector 120 of the liquid crystal display unit 102. The key input unit 103 and the keypad 107 installed outside the upper case 105 are positioned and fixed to the upper case 105 by the key panel 112. Specifically, the key input unit 103 and the keypad 107 are positioned by the key panel 112 so that a projection called an actuator provided below the button position of the keypad 107 is in contact with the dome switch of the key input unit 103. Is done.

  FIG. 4 is a cross-sectional view showing a cross section of the upper housing of the mobile phone according to the present invention. FIG. 4 illustrates a longitudinal section of the upper housing 101. In FIG. 4, the same reference numerals as those in FIG. As shown in FIG. 4, the key input unit 103 is provided outside the upper case 105, and the circuit board 106 and the end of the liquid crystal display unit 102 are provided inside the upper case 105. The key input unit 103 provided outside the upper case 105 and the liquid crystal display unit 102 incorporated inside the upper case 105 are overlapped with each other by the length A via the upper case 105. It is shown. When the key input unit 103 and the liquid crystal display unit 102 are housed in the upper case 105 as in the conventional case, the end of the key input unit 103 and the liquid crystal display unit 102 interferes, and thus the size of the liquid crystal display unit 102 is reduced. Alternatively, if the size of the key input unit 103 is reduced or the size of both is not reduced, the size of the upper casing is increased by the length A where both are overlapped. However, the key input unit 103 is an interface part that receives a user's key input, and there are many restrictions for miniaturization.

  Therefore, as described above, the key input unit 103 is provided on the outer side of the upper case 105 through the upper case 105, the liquid crystal display unit 102 is provided on the inner side, and the liquid crystal display unit 102 is disposed at a position where they overlap in the thickness direction. As a result, the liquid crystal display unit 102 and the key input unit 103 do not interfere with each other. Therefore, there is an effect that it is possible to prevent the cellular phone from becoming large while increasing the size of the liquid crystal display unit 102 and keeping the size of the key input unit 103 appropriate. In addition, the key input unit 103 needs to be reinforced in order to prevent breakage due to a pressing load applied at the time of key input. However, as described above, since the key input unit 103 is directly provided on the upper case 105, the pressing load during key input is supported by the upper case 105, and thus the key input unit 103 itself does not need to be reinforced. . That is, the key input unit 103 can be thinned and miniaturized.

  In the above description, the mobile phone is composed of two types of cases, the upper case and the lower case, and the display unit and the operation unit are exposed regardless of the open / closed state of the case (that is, the closed state). However, the slide type mobile phone has been described which requires operation while viewing the display portion. However, the present invention can be applied to mobile phones other than the slide type as long as the display unit and the operation unit are always exposed regardless of the open / close state of the housing. In the above description, the case where the present invention is applied to a mobile phone including two types of housings, an upper housing and a lower housing, has been described. The present invention can also be applied to. In the above description, the mobile phone has been described as an example. However, the present invention can be applied to various electronic devices having a display unit and an operation unit such as a portable information terminal other than the mobile phone.

It is an external appearance perspective view which shows the external appearance of the mobile telephone which concerns on this invention. It is a disassembled perspective view which decomposes | disassembles and shows the upper housing | casing of the mobile telephone which concerns on this invention. It is sectional drawing which shows the cross section of the upper housing | casing of the mobile telephone which concerns on this invention. It is sectional drawing which shows the cross section of the upper housing | casing of the mobile telephone which concerns on this invention.

Explanation of symbols

101 Upper housing, 102 Liquid crystal display, 103 Key input, 104 Earpiece,
105 Upper case, 106 Circuit board, 107 Keypad, 108 Lower case,
109 Flexible substrate for lower casing connection, 110 Flexible substrate for key input,
111 window panel, 112 key panel, 113 tape, 114 slit,
115 flexible holes, 116 openings, 117 key input unit mounting unit, 118 display surface,
119 Key connector, 120 LCD connector, 121 Camera 201 Lower housing, 202 Key input unit, 203 Transmitting unit

Claims (3)

A receiver that outputs an audio signal based on a reception signal received by the wireless unit, a circuit board on which an electronic circuit is mounted, and image information based on the received signal that is electrically connected to the circuit board and received by the wireless unit A housing that houses a display unit capable of displaying
An inside of the housing, comprising a switch that generates an electrical signal corresponding to the pressed button of the plurality of buttons, and formed at a position where the plurality of buttons and the switch are provided on the outer surface of the housing And a key input unit for transmitting an electric signal generated by the switch to the circuit board through a through-hole penetrating the outside. The housing is formed with an opening through which the display unit housed inside can be viewed from the outside, and at least one of the display unit housed inside the housing and the key input unit provided outside the housing. The mobile communication device according to claim 1, wherein the mobile communication devices are arranged so as to overlap each other. The housing positions and fixes the key input unit in a state where it is assembled to the housing so as to cover the key input unit and the plurality of buttons while exposing a part of the plurality of buttons of the key input unit. The portable communication device according to claim 1, further comprising a panel member.

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