JP2005114759A - Display unit, mobile telephone, and electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve both of making electronic equipment mounted with a display unit small-sized and making the display unit large-sized and to protect the display unit. <P>SOLUTION: A mobile telephone set 101 is equipped with a case body A(102) and a case body B(103) which are connected through a hinge unit so that they can freely be spread and folded. In the case body A(102), a display part 104 composed of an EL and a speaker part 107 are arranged and in the case body B(103), a display part 104, an operation key part 105, and a microphone part 106 are arranged. The display part 104 is fixed to the case body B(104) and made slidable to and away from the case body A(103) along the length, and a sheet member 314 which has proper elasticity is arranged on the reverse surface side of the display unit 104 one over the other. Consequently, size reduction of the mobile telephone set 101 and a size increase of the display part are both realized and bending stress accompanying folding of the mobile telephone set 101 is relieved to protect the display part 104. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a display device, a mobile phone, and an electronic device that are incorporated in a housing and display an image or the like.

  In recent years, mobile information devices such as mobile phones and PDAs (Personal Digital Assistants) have become widespread. Various information devices, including mobile information devices, usually incorporate display devices such as LCD (Liquid Crystal Display) and are used as the key to man-machine interfaces. In recent years, color displays and high definition display devices have been developed, and their use in graphical applications such as appreciating photographs and moving images has become generally established.

  In mobile information devices where portability is important, technological development has been conducted with a focus on further miniaturization, thickness reduction, and weight reduction. In addition to downsizing the mobile information device main body, a method of folding the mobile information device to make it compact when not in use is also generally known.

  In contrast to the above efforts to reduce the size of the mobile information device itself, on the other hand, the display device installed in the mobile information device is easier to use in terms of the amount of information and the visibility because of the larger display screen. Tend to be preferred by users. A display device mounted on a mobile information device is normally configured using a flat device such as an LCD, and is an element that occupies a particularly large area in a miniaturized mobile information device structure. For this reason, the design of mobile information devices largely depends on the size of the display device, and various searches are being conducted in the opposite direction of the mobile information device main body being small and the display device being large. As an example of the mobile information device, FIGS. 9 and 10 show the appearance of a conventional mobile phone.

  FIG. 9 is a perspective view showing an appearance of a mobile phone 901 called a so-called stick type.

  In FIG. 9, a cellular phone 901 has a shape in which a display portion 902 and an operation key portion 903 are arranged in the longitudinal direction of the housing.

  FIG. 10 is a perspective view showing an appearance of the foldable mobile phone 1001.

  In FIG. 10, a mobile phone 1001 has a structure that is compact when not in use by folding the housing in half around a hinge portion 1002. In this case, the display unit 1003 and the operation key unit 1004 are arranged on two surfaces facing each other when the cellular phone 1001 is folded in half.

On the other hand, as a proposal for increasing the display area of a display unit by mounting a plurality of display units side by side, for example, there is a proposal related to a computer in which three display units are foldable (see, for example, Patent Document 1). According to this proposal, the three display units can be arranged side by side and folded so that the three display units overlap each other when stored, so that they can be accommodated within the size of one display unit.
JP 2001-337745 A

  However, the conventional example has the following problems. In the case of the stick-type mobile phone 901 shown in FIG. 9, since the display unit 902 and the operation key unit 903 are arranged side by side in the longitudinal direction of the housing, the end of the operation key unit 903 extends from the end of the display unit 902. The length L1 up to the portion becomes the size of the display operation portion of the mobile phone, and if the display portion 902 is enlarged, the size of the mobile phone main body is directly increased, so there is a limit to the enlargement of the display portion 902.

  In the case of the foldable mobile phone 1001 shown in FIG. 10, the display unit 1003 and the operation key unit 1004 are arranged on two surfaces facing each other when the mobile phone 1001 is folded in half. Therefore, it can be said that the size L2 when the mobile phone 1001 is not used depends on the size of the display unit 1003. In order to make the mobile phone 1001 easier to carry while mounting a large display unit, it is more convenient than the stick type mobile phone 901. . However, the size of the display unit 1003 is directly linked to the size of the mobile phone body when not in use, and there is a limit to increasing the size of the display unit 1003.

  Also, in the above proposal to increase the display area of the display unit by mounting a plurality of display units side by side, the display unit is divided into a plurality of parts after all, so the display can be used as a continuous large screen. The boundary between the parts is obstructive, and a driving circuit is required for each display part, which increases the number of parts and is disadvantageous in terms of cost.

  An object of the present invention is to provide a display device, a mobile phone, and an electronic apparatus that can achieve both a reduction in the size of a housing on which the display device is mounted and an increase in the size of the display device, and protection of the display device. There is.

  In order to achieve the above-mentioned object, the invention according to claim 1 is a display device that can be attached to a housing formed by rotatably connecting at least a first housing and a second housing via a connection mechanism. A foldable display device is provided, the display device being fixed to the first casing and slidably held with respect to the second casing.

  The invention of claim 2 is characterized in that the display device is slidably held in the arrangement direction of the first and second casings with respect to the second casing.

  The invention according to claim 3 is characterized in that a sheet-like member having elasticity is arranged in a state of being superimposed on the display device.

  The invention according to claim 4 is characterized in that the display device and the second casing are connected via an elastic member.

  The invention of claim 5 is characterized in that the display device is selected from a foldable display device group including EL (Electro Luminescence).

  A sixth aspect of the invention is a mobile phone comprising the display device according to any one of the first to fifth aspects.

  A seventh aspect of the invention is an electronic apparatus including the display device according to any one of the first to fifth aspects.

  The invention according to claim 8 is characterized in that the electronic device is an electronic device selected from the group including a portable information terminal, an imaging device, and a television receiver.

  The present invention is a display device that can be mounted on a casing formed by rotatably connecting at least a first casing and a second casing via a connection mechanism, and includes a foldable display device. The display device is fixed to the first housing so that at least a predetermined portion of the display device is accommodated in the first housing, and at least another portion of the display device is the second It is good also as a structure hold | maintained so that it can slide to the arrangement direction of the said 1st and 2nd housing | casing with respect to this housing | casing.

  Further, the present invention is a display device that can be mounted on a casing formed by sequentially connecting a plurality of casing constituent elements in series via a connection mechanism so as to freely rotate, and includes a foldable display device, The display device may be configured to be fixed to a casing component located at one end of the plurality of casing components and to be slidably held with respect to the other casing components.

  According to the first aspect of the invention, the foldable display device is fixed to the first casing and is slidably held with respect to the second casing. As the display device fixed to the first case slides and moves in the second case as the case consisting of the second case is folded, the size of the case in the folded state is displayed. It can be configured to be smaller than the size of the device. That is, the housing can be folded smaller than the size of the display device, and both the reduction in the size of the housing and the increase in the size of the display device can be achieved while ensuring the size of the display screen of the display device. In addition, by holding the display device slidably with respect to the second housing, it is possible to release bending stress associated with the folding of the housing and protect the display device.

  According to the invention of claim 2, since the display device is slidably held in the arrangement direction of the first and second casings with respect to the second casing, The case composed of the first case and the second case can be folded smaller than the size of the display device, and bending stress accompanying folding of the case can be released, and the display device can be protected. .

  According to the invention of claim 3, since the sheet-like member having elasticity is arranged in a state of being superimposed on the display device, the sheet-like member is used to form a housing composed of the first housing and the second housing. Opening and closing when folding or unfolding the housing can assist the sliding and moving operation of the display device when folding the body and the expanding operation of the display device when unfolding the housing Reliability can be improved.

  According to the invention of claim 4, since the display device and the second casing are connected via the elastic member, the opening / closing operation of the casing composed of the first casing and the second casing can be performed. On the other hand, the display device can smoothly follow.

  According to the invention of claim 5, since the display device is selected from a foldable display device group including EL, when the display device is constituted by EL, for example, the first housing and the second The display device smoothly bends due to the flexible characteristics of the EL following the folding of the casing, and the bending stress associated with the folding of the casing can be released, thus protecting the display device. be able to.

  According to a sixth aspect of the present invention, since the mobile phone includes the display device according to any one of the first to fifth aspects, a first mobile phone case is formed as the mobile phone is folded. Since the display device fixed to the housing slides and moves in the second housing, the size of the folded cellular phone can be configured to be smaller than the size of the display device. That is, the mobile phone can be folded smaller than the size of the display device, and while maintaining the size of the display screen of the display device, the portability is not impaired, and the mobile phone is downsized and the display device is upsized. Both can be achieved. In addition, bending stress associated with folding of the mobile phone can be released, and the display device can be protected. In addition, the open / close reliability when the cellular phone is folded or unfolded can be improved.

  According to the invention of claim 7, since the electronic device includes the display device according to any one of claims 1 to 5, both the downsizing of the electronic device and the upsizing of the display device can be achieved. Protection and improvement of open / close reliability.

  According to the invention of claim 8, since the electronic device is an electronic device selected from the group including a portable information terminal, an imaging device, and a television receiver, downsizing of the portable information terminal, the imaging device, etc. And an increase in the size of the display device, protection of the display device, and improvement in open / close reliability.

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

[First Embodiment]
FIG. 1 is a perspective view showing an external appearance of the mobile phone according to the first embodiment of the present invention when used. FIG. 2 is a perspective view showing an external appearance of the mobile phone when not in use.

  1 and 2, a mobile phone 101 includes a case body A 102 (second housing) connected in a freely foldable and foldable manner via a hinge unit (see FIG. 3, connection mechanism) attached to a hinge portion 108. Body) and case body B103 (first housing). Further, the display unit 104 (display device) and the speaker unit 107 are disposed on the case body A102, and the display unit 104, the operation key unit 105, and the microphone unit 106 are disposed on the case body B103. ing.

  The casing of the mobile phone 101 is configured by connecting the case bodies A and 102 and the case bodies B and 103 so as to be rotatable about a hinge unit attached to the hinge portion. That is, the mobile phone 101 can be used by opening the casing and unfolding it as shown in FIG. 1 when in use, so that the display unit 104 and the operation key unit 105 can be used, and when not in use, as shown in FIG. By folding the body into the storage state, the entire mobile phone can be made compact.

  A display unit 104, an operation key unit 105, a microphone unit 106, and a speaker unit 107 are arranged on the surfaces of the case body A 102 and the case body B 103 that face each other when the cellular phone 101 is folded and stored. ing. As a result, it is known that when the cellular phone 101 is folded and stored, the display unit 104 and the operation key unit 105 are protected, and the display unit 104 is prevented from being scratched or erroneously operated. Yes. Further, a switch (not shown) for detecting that the mobile phone 101 is closed is provided in the vicinity of the hinge unit 108 so that the display unit 104 is turned off when the mobile phone 101 is folded and stored. Control is normally done.

  The display unit 104 of the cellular phone 101 is arranged so as to extend from the case body A 102 to the case body B 103 across the hinge 108. L3 indicates the length of the display unit 104 in the longitudinal direction. What should be noted here is that EL (Electro Luminescence) is adopted as the display unit 104 of the mobile phone 101. EL has a simple structure with respect to LCD and is suitable for thinning, and can be rounded or bent. In the future, application development such as electronic paper is considered. The display unit 104 of the mobile phone 101 can smoothly fold by utilizing the flexible characteristic of the EL and bending the EL following the folding of the mobile phone 101.

  FIG. 3 is an exploded perspective view showing the structure of the mobile phone 101. 4 is a cross-sectional view showing a schematic structure when the mobile phone 101 is used (FIG. 1). FIG. 5 is a cross-sectional view showing a schematic structure when the mobile phone 101 is not used (FIG. 2).

  3 to 5, the case body A · 102 includes an exterior cover A1 · 301 having a large opening forming a display frame of the display unit 104 and constituting the front side of the case body A · 102, and the case body A. -The exterior cover A2 * 302 which comprises the back side of 102 is provided. Speaker holes 303 for emitting sound from the speaker unit 107 are provided in the exterior covers A1 and 301. A telescopic rod antenna 304 is attached to the exterior cover A2 302. The speaker unit 107 is nipped and fixed by the exterior covers A1 and 301 and the exterior covers A2 and 302. A wire (not shown) connected to the rod antenna 304 and the speaker unit 107 is drawn into the case body B 103 and connected to a main board 306 described later.

  The case body B103, like the case body A102, has an opening that forms the display frame of the display unit 104 and has an exterior cover B1307 that forms the front side of the case body B103, The exterior cover B2 * 308 which comprises the back side of the body B * 103 is provided. The exterior covers B1 and 307 are provided with a U-shaped cutout portion serving as a frame of the display unit 104, a plurality of holes 309 in which the operation key unit 105 is installed, and a microphone hole 310 into which the speaker voice is taken into the microphone unit 106. Is arranged. Case body B 103 stores main board 306 on which electronic components for controlling mobile phone 101 are mounted, operation key unit 105, and microphone unit 106. Further, a mounting portion (not shown) for mounting the battery 311 is provided on the back side of the case body B103.

  The operation key unit 105 abuts on the main board 306 and is sandwiched between the main board 306 and the exterior covers B1 and 307, and a portion exposed from the hole 309 of the exterior cover B1 and 307 constitutes an appearance as an operation switch. The microphone unit 106 is disposed on the back side of the microphone hole 310 and is sandwiched and fixed by the exterior covers B1 and 307 and the exterior covers B2 and 308. The operation key unit 105 and the microphone unit 106 are connected to the main board 306 by wiring (not shown).

  The exterior covers A1 and 301 and the exterior covers B1 and 307 are integrally formed with a hinge cover that houses a hinge unit 312 that rotatably connects the two exterior covers. The case bodies A and 102 and the case bodies B and 103 are pivotally connected from the folded storage state to the unfolded state opened at a predetermined angle with the hinge unit 312 as a joint. The hinge unit 312 generates a predetermined dynamic torque and generates a click feeling moderately at both ends of the rotation range. Many such hinge unit structures are disclosed in, for example, Japanese Patent Application Laid-Open No. 2001-35537, and these known hinge units are employed in the present embodiment. Therefore, the detailed description is left to those known techniques.

  One end of the display unit 104 is fixed inside the case body B 103 and wired to the main board 306. The bosses 313 provided on the exterior covers B2 and 308 are inserted into the main substrate 306, the display unit 104, and a sheet member 314 described later, and are fixed simultaneously with the positioning of these three members. The main substrate 306, the display unit 104, and the sheet member 314 are sandwiched between the exterior cover B1 · 307 and the exterior cover B2 · 308 by fixing the exterior cover B1 · 307 and the exterior cover B2 · 308 with screws 315. Therefore, it is completely fixed to the case body B103.

  The display unit 104 is held at a predetermined height in the case body A 102 by the exterior cover A 1 301 and the rib 316 provided on the exterior cover A 2 302 in the case body A 102. . Since the display unit 104 is not provided with means for fixing the longitudinal direction 317 of the display unit 104 to the case body A 102, the display unit 104 is slidable in the longitudinal direction 317. Furthermore, a sheet member 314 having appropriate elasticity (a sheet-like member having elasticity) is disposed on the back side of the display unit 104 in a state where it is overlapped.

  That is, the display unit 104 of the mobile phone 101 has one longitudinal part (the right part in FIG. 5) of the display part 104 fixed to the case body B 103 and the other longitudinal part of the display part 104. (The left portion in FIG. 5) is perpendicular to the longitudinal direction 317 (the axis of the hinge unit 312 that rotatably connects the case body A · 102 and the case body B · 103) with respect to the case body A · 102. It is configured to be slidably held in the direction).

  Next, the operation of the display unit 104 inside the housing of the mobile phone 101 according to the present embodiment having the above configuration will be described.

  The display unit 104 is fixed to the case body B 103 and is slidable in the longitudinal direction 317 with respect to the case body A 102. As shown in FIG. 5, when the cellular phone 101 is not in use, that is, when the cellular phone 101 is folded, the thick portions of the exterior covers A1 and 301 and the exterior covers B1 and 307 and between the exterior covers The display unit 104 is bent with the tops of the two exterior covers turned around by the clearance Lc provided, so that the display unit for the case body A and 102 is used when used (FIG. 4) and when not used (FIG. 5). A shift ΔL is generated at the position 104.

  In the present embodiment, as described above, the display unit 104 is fixed to the case body B · 103 and is configured to be slidable in the longitudinal direction 317 with respect to the case body A · 102. The shift ΔL is absorbed as the display unit 104 slides and moves in the case body A 102, so that the deformation stress on the display unit 104 can be reduced.

  In addition, as described above, the sheet member 314 having appropriate elasticity is disposed on the back surface side of the display unit 104 in a state of being overlapped. The sheet member 314 is folded in the same manner as the display unit 104 when the cellular phone 101 is folded. However, the elastic force (= restoring force) generated by the bending acts to expand the display unit 104 and stores the cellular phone 101. The display unit 104 is slid and moved when folded into a state (non-use state), and the display unit 104 is expanded when the mobile phone 101 is opened to a developed state (use state).

  As described above, according to the present embodiment, the display unit 104 of the mobile phone 101 is fixed to the case body B · 103 and is slidable in the longitudinal direction with respect to the case body A · 102. When the mobile phone 101 is folded, the end portion is fixed to the case body B103 by moving the display unit 104 by sliding the part in the case body A102 when the 101 is folded. Since the display unit 104 moves while sliding inside the case body A 102, the size of the cellular phone 101 in a folded state can be configured to be smaller than the size of the display unit 104. That is, the cellular phone 101 can be folded smaller than the size of the display unit 104, and while ensuring the size of the display screen of the display unit 104, the portability is not impaired, and the mobile phone 101 can be downsized and the display unit 104 can be reduced. It is possible to achieve a balance with an increase in size.

  Further, by freely sliding and moving the display unit 104 inside the case body A 102, it is possible to release bending stress associated with the folding of the cellular phone 101, and the display unit 104 can be protected.

  Further, by arranging the sheet member 314 having appropriate elasticity on the back surface side of the display unit 104 so as to overlap, the display unit 104 slides and moves when the cellular phone 101 is folded into the storage state by the sheet member 314. And the operation of extending the display unit 104 when the cellular phone 101 is opened to the expanded state, and the opening / closing reliability when the cellular phone 101 is folded or expanded can be improved. .

[Second Embodiment]
Next, a second embodiment of the present invention will be described.

  FIG. 6 is an exploded perspective view showing the structure of the mobile phone according to the second embodiment of the present invention.

  In FIG. 6, a cellular phone 601 is generally configured by a case body A 102 and a case body B 103 that are connected to each other via a hinge unit 312 so as to be unfolded and folded. The display unit 104 employs EL as described above. In FIG. 6, the same components as those in FIG. 3 are denoted by the same reference numerals.

  This embodiment is different from the above-described first embodiment in that the mobile phone 601 further includes a tensioner member 602 (a member having elasticity). The other elements of the present embodiment are the same as those corresponding to FIG. 3 of the first embodiment described above, and thus the description thereof is omitted.

  FIG. 7 is a perspective view showing a state when the tensioner member 602 in the cellular phone 601 is engaged with the display unit 104.

  In FIG. 7, the tensioner member 602 includes a mounting base 701 and two arm-shaped portions 702 and 702 that extend symmetrically outward from the mounting base 701, and is configured as a resin member. Further, a pin-like protrusion 703 is formed at the tip of each of the two arm-shaped portions 702 and 702. The two arm-shaped portions 702 and 702 have appropriate elasticity as a whole. The tensioner member 602 elastically connects the case body A102 and the display unit 104.

  That is, the present embodiment is different from the first embodiment in that a resin tensioner member 602 is fixed inside the case body A 102 of the cellular phone 601, and the case body A 102 and the display unit 104 are fixed. It is the point which is trying to connect elastically. The tip of each of the two arm-shaped portions 702 of the tensioner member 602 is engaged with the display portion 104 by a pin-shaped protrusion 703, and the engaging portion is in relation to the center of the pin-shaped protrusion 703. Thus, the rotation direction is not restricted.

  Next, the operation of the display unit 104 inside the housing of the cellular phone 601 of the present embodiment having the above configuration will be described.

  FIG. 8 is a schematic view for explaining the action of the tensioner member 602. (A) is in use, and (B) is not in use.

  In the cellular phone 101 of the first embodiment, the position of the display unit 104 is shifted by ΔL with respect to the case body A 102 when used and when not used. Also in the present embodiment, the display unit 104 of the mobile phone 601 is configured to be fixed to the case body B · 103 and slidable in the longitudinal direction 317 with respect to the case body A · 102. The shift ΔL is absorbed as the display unit 104 slides and moves in the case body A 102, so that the deformation stress on the display unit 104 can be reduced.

  In addition, when the cellular phone 601 is folded into the storage state (when not in use), if the position of the display unit 104 in the case body A 102 is shifted, the case body A 102 and the display unit 104 are elastically connected. As shown in FIG. 8B, the arm-shaped portion 702 of the tensioner member 602 is bent by ΔL and generates an elastic force. On the other hand, when the cellular phone 601 is opened (when in use), the display unit 104 is pulled back by the elastic force of the tensioner member 602 and moved to a predetermined position as shown in FIG.

  As described above, the display unit 104 of the mobile phone 601 can smoothly follow the opening / closing operation of the mobile phone 601 by receiving the assistance of the elastic force generated by the tensioner member 602.

  As described above, according to the present embodiment, the first embodiment of the present invention, which is compatible with the downsizing of the mobile phone 601 and the upsizing of the display unit 104, the protection of the display unit 104, and the improvement of the open / close reliability. In addition to the same effect as the embodiment, the display unit 104 can be opened and closed with respect to the opening / closing operation of the cellular phone 601 by elastically connecting the case body A102 of the cellular phone 601 and the display unit 104 by the resin tensioner member 602. There is an effect that 104 can be smoothly followed.

[Other embodiments]
In the first and second embodiments, the case where the operation key part 105 of the cellular phone is arranged near the microphone part 106 of the case body B 103 is described as an example. However, the present invention is not limited to this structure. Instead, taking FIG. 1 as an example, the arrangement of the display unit 104 may be shifted to the location of the operation key unit 105, and the operation key unit 105 may be arranged at a location near the speaker unit 107 of the case body A102. Good. In this case, the mobile phone has an appearance that is upside down in FIG. Alternatively, the operation key unit 105 is divided into a portion near the speaker unit 107 of the case body A • 102 and a portion near the microphone unit 106 of the case body B • 103, and the display unit 104 of the operation key unit 105 is arranged. It is good also as a structure arrange | positioned between. In this case, for example, a structure in which the keypad of the operation key unit 105 is divided into other keys (power key, various setting keys, etc.) can be considered.

  In the first and second embodiments, the display unit 104 of the mobile phone is fixed to the case body B • 103 (first housing), and the case body A • 102 (second housing) is fixed. However, the present invention is not limited to this structure, and the display unit 104 is fixed to the case body A102 (first housing), and the case is configured to be slidable in the longitudinal direction. The body B · 103 (second housing) may be configured to be slidable in the longitudinal direction.

  In the first and second embodiments, the case body A · 102 and the case body B · 103 are connected to each other via the hinge portion 108 and the hinge unit 312 so as to be rotatable. The structure is not limited to the structure, and the case body A / 102 and the case body B / 103 can be freely connected to each other.

  Further, in the first and second embodiments, a mobile phone having a two-fold structure has been described as an example of a foldable mobile phone. However, the mobile phone is not limited to a two-fold structure, and may be a three-fold structure or a four-fold structure. Even so, it can be easily understood that the present invention is applicable.

  In the first and second embodiments, the cellular phone is taken as an example. However, the cellular phone is not limited to the cellular phone, and can be applied to a simple cellular phone (PHS). Needless to say, the present invention can be applied to all electronic devices equipped with a foldable display device other than a mobile phone. That is, the present invention is applicable not only to small mobile devices such as personal digital assistants (PDAs) and imaging devices (digital cameras and video cameras) but also to large electronic devices such as so-called wall-mounted televisions.

  In the first and second embodiments, the case where the display unit is an EL display has been described as an example. However, the EL is not limited to a specific type, and may be either an organic EL or an inorganic EL. .

  In the first and second embodiments, the case where the display unit is an EL display has been described as an example. However, the display unit is not limited to the EL display, and the display unit may be a flexible device that can be bent. Any type is acceptable.

It is a perspective view which shows the external appearance at the time of use of the mobile telephone which concerns on the 1st Embodiment of this invention. It is a perspective view which shows the external appearance at the time of non-use of a mobile telephone. It is a disassembled perspective view which shows the structure of a mobile telephone. It is sectional drawing which shows schematic structure at the time of use of a mobile telephone. It is sectional drawing which shows schematic structure at the time of non-use of a mobile telephone. It is a disassembled perspective view which shows the structure of the mobile telephone based on the 2nd Embodiment of this invention. It is a perspective view which shows a mode at the time of engaging the tensioner member in a mobile telephone with a display part. It is a schematic diagram for demonstrating the effect | action of a tensioner member, (A) is at the time of use, (B) is at the time of non-use. It is a perspective view which shows the external appearance of the stick type mobile phone which concerns on a prior art example. It is a perspective view which shows the external appearance of the foldable mobile telephone which concerns on another prior art example.

Explanation of symbols

101, 601 Mobile phone 104 Display unit 105 Operation key unit 102 Case body A
103 Case body B
105 Operation key part 106 Microphone part 107 Speaker part 108 Hinge part 301, 302, 307, 308 Exterior cover 312 Hinge unit 313 Boss 314 Sheet member 315 Screw 316 Rib 317 Longitudinal direction 602 Tensioner member 701 Mounting base part 702 Arm shape part 703 Pin shape Protrusion

Claims (8)

A display device that can be attached to a housing formed by connecting at least a first housing and a second housing via a connection mechanism so as to be rotatable,
A display device comprising a foldable display device, wherein the display device is fixed to the first housing and is slidably held with respect to the second housing.   The display device according to claim 1, wherein the display device is slidably held in the arrangement direction of the first and second housings with respect to the second housing.   2. The display device according to claim 1, wherein a sheet-like member having elasticity is arranged in a state of being overlapped with the display device.   The display device according to claim 1, wherein the display device and the second housing are connected via an elastic member.   The display device according to claim 1, wherein the display device is selected from a foldable display device group including EL (Electro Luminescence).   A mobile phone comprising the display device according to any one of claims 1 to 5.   An electronic apparatus comprising the display device according to claim 1.   The electronic device according to claim 7, wherein the electronic device is an electronic device selected from the group including a portable information terminal, an imaging device, and a television receiver.

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