KR20070054177A - Portable electronic apparatus - Google Patents

Abstract

A first case having an operation unit and a control unit that performs predetermined control in accordance with an operation from the operation unit, a second case including a display unit for visually displaying an output signal from the control unit, and an upper plate unit for protecting the display unit; And a hinge for hinge coupling the first case and the second case, wherein the thickness of the upper portion of the upper portion is different from the thickness of the peripheral portion of the upper portion.

Description

Portable electronic apparatus

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable electronic device which is provided with a display unit such as a liquid crystal screen and which can be folded into two through a hinge.

This application claims priority based on Japanese Patent Application No. 2004-272070 for which it applied on September 17, 2004, and uses the content here.

Background Art Conventionally, portable electronic devices such as portable electronic dictionaries have been widely provided so that two cases can be connected through a hinge and these cases can be folded as two. In such a portable electronic device, when one case is folded, a display portion made of a liquid crystal screen or the like is provided on the inner surface thereof, and an operation portion capable of operating in a keyboard shape is provided on the inner surface of the other case (for example, Patent Document 1). Reference). In such a portable electronic device, the display unit and the operation unit are folded and transported so as to be opposed to each other, and in use, the hinge is rotated around the hinge in the direction in which the display unit and the operation unit are separated from each other. On the other hand, in the display part which consists of a liquid crystal screen etc., the glass material which does not have elasticity is used as a main material unlike the board | substrate which is embedded. Therefore, when the portable electronic device is pressed by any external factor, since the embedded substrate has elasticity, the embedded substrate is preferably deformed and not broken. However, since the display parts such as the liquid crystal screen are not deformable, they cannot withstand pressure and are damaged. A problem that has become. Such a problem of breakage of the liquid crystal screen has become more remarkable in recent years when the tendency of enlargement and weight reduction of the liquid crystal screen is strong.

Patent Document 1: Japanese Patent Application Laid-Open No. 2004-13512

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is provided as a portable electronic device having two cases so that it can be folded through a hinge, and a liquid crystal screen (display portion) is installed in one of the two cases, wherein pressure from outside is increased. It is an object of the present invention to provide a portable electronic device in which a built-in liquid crystal display (display unit) is hard to be damaged even with an external load such as being applied.

The present invention includes a first case having an operation unit, a control unit for performing predetermined control in accordance with an operation from the operation unit, a display unit for visually displaying an output signal from the control unit, and an upper plate unit for protecting the display unit. Provided is a second case, a hinge configured to fold the first case and the second case, and a thickness of the central portion of the upper plate portion different from the peripheral portion of the upper plate portion.

In the portable electronic device according to the present invention, when the second case is pressed from the outside in a folded state, the second case is not deformed in the same way because the thickness of the center portion and the peripheral portion is different. That is, it deforms by being pulled to one side so that the deformation of the center part and the peripheral part may differ. Thereby, only the desired part of the said 2nd case can also be deformed and comprised. Therefore, it is possible to prevent the display portion from being subjected to pressure by constructing such that the display portion that is easily broken when being pressed near the deformed point is not arranged in advance. In addition, the display portion can be prevented from being pressurized by arranging a suitable space, member, or the like suitable for the deformation in the vicinity of the deformed portion in advance.

The thickness of the central portion of the upper plate portion may be set thicker than the thickness of the peripheral portion of the upper plate portion.

In this case, when the upper plate portion is pressed from the outside in the folded state, the peripheral portion of the upper plate portion is likely to be deformed compared to the center portion due to the difference in thickness. Therefore, the pressurization of the central portion of the display unit that is most fragile in the display unit accommodated in the second case can be avoided. Moreover, even if the periphery of the upper plate portion is pressed, the pressurized force tends to fall to the side of the member constituting the case, contributing to the prevention of damage. In addition, unlike the central portion of the display portion, a member supporting the lower portion of the peripheral portion is provided at the peripheral portion of the display portion accommodated in the second case. For this reason, the above-mentioned pressurized force can be suitably distributed to the member, and it is hard to be damaged even as the said whole display part.

The outer surface of the central portion of the upper plate portion may be formed to be curved to protrude toward the outside.

In this case, when the upper plate part is pressed from the outside in the folded state, the pressed force tends to fall in the peripheral part direction of the upper plate part by R formed by the curvature. Therefore, the pressurized force can be subtracted preferably in the circumferential direction, thereby reducing the pressurization of the central portion of the display unit, which is the most fragile of the entire display unit. In addition, unlike the central portion of the display portion, a member supporting the lower portion of the peripheral portion is provided at the peripheral portion of the display portion accommodated in the second case. For this reason, the pressurized force mentioned above can be subtracted to the member suitably, and it is hard to be damaged as the said whole display part.

The center portion of the surface of the upper plate portion facing the display portion may be formed in a planar shape.

In this case, when the upper plate portion is pressed from the outside in the folded state and the upper plate portion is bent and moved inward, the inner surface formed in a planar shape without protrusions moves inside. Therefore, when the upper plate portion is bent by the pressure from the outside and the inner surface thereof is in contact with the display portion, the pressing force is dispersed by touching the plane rather than contacting with the dots, so that the entire display portion is not easily broken.

The top plate may be formed of a magnesium alloy.

In this case, because of the characteristics of the magnesium alloy, the entire second case can be configured to be lightweight, and further, the entire portable electronic device can be constructed to be lightweight. When the first case is also made of magnesium alloy, the first case is configured to have light weight and more preferable rigidity as the whole portable electronic device.

A portable electronic device according to the present invention includes an auxiliary frame mounted between the upper plate portion and the peripheral edge portions of the display portion that face each other, and a frame body installed to support the display portion on the opposite side to the side where the auxiliary frame of the display edge portion is present. You may include more.

In this case, when the upper plate portion is pressed from the outside in the folded state, the pressed force presses the frame body through the peripheral portion of the auxiliary frame and the display portion. In the folded state, the frame main body is supported in contact with the periphery of the first case, so that the pressure applied to the frame main body is preferably released toward the first case. Therefore, the pressurized force can be preferably pulled out in the circumferential direction, so that the pressure applied to the central portion of the display portion that is most fragile among the entire display portions is reduced.

The auxiliary frame may be thickly formed toward the center of the second case.

In this case, the supporting force to the second case increases as the auxiliary frame faces the center portion of the second case. That is, when the central part of the second case is pressed, the pressed force is likely to fall into the auxiliary frame. The pressurized force tends to fall into the frame body through the auxiliary frame, and furthermore, the peripheral portion of the display portion. Therefore, the pressurized force can be preferably pulled out in the circumferential direction, so that the pressure applied to the central portion of the display portion that is most fragile among the entire display portions is reduced.

The thickness of the central portion and the peripheral portion of the upper plate portion may be set so that the value obtained by dividing the thickness of the central portion of the upper plate portion by the thickness of the peripheral portion of the upper plate portion is 1.2 to 3.0.

In this case, when the upper plate portion is pressed from the outside in the folded state, the peripheral portion of the upper plate portion is preferably deformable.

In addition, the present invention includes an operation unit, a control unit for performing predetermined control in accordance with an operation from the operation unit, a display unit for visually displaying an output signal from the control unit, and an upper plate unit for protecting the display unit. Provided is a portable electronic device having a thickness different from the periphery of the upper plate portion.

According to the portable electronic apparatus according to the present invention, even if there is an external load that is pressurized from the outside, the case provided with the liquid crystal screen (display section) is configured to be difficult to be bent and the built-in liquid crystal screen (display section) is not damaged. .

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which cuts and shows the portable electronic device which concerns on this invention to the surface perpendicular | vertical to the hinge axis direction.

Fig. 2 is a perspective view showing the portable electronic device according to the present invention cut in a plane parallel to the hinge axis direction.

FIG. 3 is a cross-sectional view illustrating the portable electronic device at the cut surface in FIG. 1.

4 is a cross-sectional view illustrating the portable electronic device at the cut surface in FIG. 2.

5 is an action diagram of a force when a force is applied from above the portable electronic device.

<Description of the code>

1 portable electronic device 10 1st case

11 Control panel 12 Control unit

50 Second Case 51 Display

53 Central 54 Peripheral

100 hinge

Best Mode for Carrying Out the Invention The best embodiment of the portable electronic device according to the present invention will now be described with reference to Figs. 1 is a perspective view of a mobile electronic device cut in a plane perpendicular to the hinge axis direction, and FIG. 2 is a perspective view of a mobile electronic device in a plane parallel to the hinge axis direction, and FIG. 3 is a perspective view of the mobile electronic device in FIG. It is sectional drawing which shows a portable electronic device by a cutting surface, and FIG. 4 is sectional drawing which shows a portable electronic device by the cutting surface in FIG.

The portable electronic device 1 shown in FIG. 1 is a portable electronic dictionary which is an example of a portable electronic device. As shown in FIG. 1 to FIG. 4, the portable electronic device 1 includes two pairs of cases, that is, the first case 10 and the second case 50, one of both cases 10 and 50 of each other. Edge portion A is connected to each other via hinge 100 and configured. Therefore, both cases 10 and 50 can be rotated and folded so as to be spaced apart from each other on the axis of the hinge 100. The first case 10 includes an operation unit 11 formed of a keyboard capable of inputting an operation such as a character, and a substrate provided with various CPUs, ROMs, and the like, and predetermined according to an operation from the operation unit 11. The control part 12 which control of the is performed is accommodated. In addition, the second case 50 houses a display unit 51 configured as a liquid crystal display for visually displaying the output signal from the control unit 12.

The first case 10 and the second case 50 are made of a magnesium alloy, whereby the portable electronic device 1 is composed of a portable electronic device having a light weight and desirable rigidity.

Therefore, as shown in the figure, in the state where the portable electronic device 1 is folded, the operation unit 11 and the display unit 51 are opposed to each other. The first case 10 includes a power device (not shown) for supplying power to the portable electronic device 1, and the bottom plate 14 of the first case 10 is mounted on a table. It becomes the ground plane in case. In addition, the engaging device 30 for engaging the edge portions B of the two cases 10 and 50 with each other is provided in the edge portions B of the two cases 10 and 50. . When the edge portions B are engaged with each other by the engagement device 30, the cases 10 and 50 are kept closed.

As shown in FIG. 1 to FIG. 4, the second case 50 includes an upper plate portion 50a and left and right side plate portions 50b, and an outer surface 53a of the central portion 53 of the upper plate portion 50a. It is curved to protrude outward. Further, the cross-sectional thickness of the central portion 53 of the upper plate portion 50a is thicker than that of the peripheral portion 54 of the upper plate portion 50a, and the inner surface 53b is formed in a planar shape. In addition, the thickness of the peripheral portion 54 of the upper plate portion 50a is gradually thinner as the outer surface 54a of the peripheral portion 54 is cut toward the side plate portion 50b which becomes the circumferential portion of the upper plate portion 50a. . That is, in the upper plate portion 50a, the outer surface 53a of the central portion 53 is formed convexly as compared with the outer surface 54a of the peripheral portion 54. As described above, the outer surface of the upper plate portion 50a is formed in the shape of an iron surface protruding outwards toward the center of the central portion 53.

In addition, in the upper plate part 50a of the said 2nd case 50, it is comprised by the following ratio specifically.

That is, in the upper plate portion 50a of the second case 50, the length L of the upper plate portion 50a of the second case 50 is 84 mm in FIG. 3. The length L 'is 32 mm, that is, it is comprised so that the ratio L' / L may be 0.28-0.64. 4, the width M of the upper plate portion 50a of the second case 50 is 138 mm, whereas the width M 'of the central portion 53 is 85 mm, that is, the ratio M' /. It is comprised so that M) may be 0.42-0.71.

3, the thickness S of the center part 53 of the upper plate part 50a is 1.5 mm, whereas the thickness T of the peripheral part 54 of the upper plate part 50a is 0.9 mm. That is, the upper plate portion 50a is configured such that "S / T", which is a value obtained by dividing the thickness S of the central portion by the thickness T of the peripheral portion 54, becomes 1.2 to 3.0. In the second case 50, a clearance U that is 2.78 mm is formed between the central portion 53 of the upper plate portion 50a of the second case 50 and the display portion 51. The clearance U is preferably 1.5 to 3.5 mm in consideration of the relationship between the manufacturing margin of the upper plate portion 50a and the thickness of the entire second case 50, which will be described later.

In addition, an auxiliary frame 55 is provided between the upper plate portion 50a of the second case 50 and the peripheral edge portion 54 of the display portion 51 facing each other, and the auxiliary edge portion 51a of the display portion 51 is the auxiliary portion. The frame main body 57 is provided so as to support the display portion 51 on the side opposite to the side where the frame 55 is present. The auxiliary frame 55 protrudes downward from the peripheral direction of the contact plate 55a and the contact plate 55a formed so as to have a thicker thickness toward the central portion 53 of the upper plate portion 50a, and The lower part is comprised with the wall part 55b which supports the frame main body 57. As shown in FIG. In the auxiliary frame 55, the upper surface of the contact plate 55a contacts and supports the inner surface 54b, and the lower surface of the contact plate 55a is connected to the display unit 51 through the circuit board 56. It is arrange | positioned so that it may contact and support the upper surface part 51a of periphery.

The circuit board 56 is provided between the display unit 51 and the upper plate unit 50a. A periphery of the circuit board 56 is provided with a hole for screwing into the display unit 51 and screwed to the display unit 51. It is. In addition, in the circuit base 56, a central portion thereof is opened to secure the clearance between the upper plate portion 50a and the display portion 51. In addition, various electronic components 56a are mounted on the upper surface (surface of the upper plate portion 50a side) of the circuit foundation 56. In addition, the lower surface of the auxiliary frame 55, which will be described later, is in contact with and supported by the display unit 51 in an area larger than the area of the auxiliary frame 55 in contact with and supported by the display unit 51.

Specifically, the frame main body 57 is provided in a circumferential shape so as to be in contact with the bottom surface of the peripheral portion 51a of the display portion 51 and to cover the peripheral portion 51a. It is formed of a frame plate (57a) to form a part of the inner surface of the protruding wall (57b) protruding upward in the circumferential direction of the frame plate (57a). The protruding wall 57b is formed to engage with the side plate portion 50b of the second case 50 described above, and the second case 50 is integrated by this engagement. In addition, the frame main body 57 is pinched and fixed to the display unit 51 by screwing with the auxiliary frame 55 (partly pinched and fixed through the circuit board 56). Therefore, the upper surface of the frame plate 57a of the frame body 57 is supported in contact with the lower surface of the periphery 51a of the display unit 51, and the lower surface of the frame plate 57a of the first case 10 is supported. It is supported in contact with the peripheral portion 15.

Since the lower surface of the frame plate 57a protrudes from the lower surface of the display unit 51, an appropriate clearance is formed between the display unit 51 and the operation unit 11, whereby the display unit 51 is operated by the operation unit ( 11) There is no pressurization. Moreover, in the said frame main body 57, as shown in FIG. 2, the bearing part 58 in which the edge part of the said hinge is inserted and couple | bonded is provided.

Reference numeral 59 denotes an external connection, specifically, formed of a connector for electrically connecting with an external device.

Next, the operation achieved by the portable electronic device 1 configured as described above will be described with reference to FIG. 5. FIG. 5 shows that the lower surface 14 of the first case 10 is supported from the surface R while the portable electronic device 1 is folded, and the upper surface of the portable electronic device 1 is not visible from above. The action degree in which the force F which becomes an external load was applied is shown.

That is, as shown in Fig. 5, when the pressurized force F is applied to the portable electronic device 1, the force is caused by R of the upper plate portion 50a formed in the curved shape. It is dispersed as a force F1 in the direction of the peripheral portion 54 of the upper plate portion 50a of (10). Therefore, it is less likely to apply the pressurized force F to the center part 53, and it becomes difficult to press the center part 51b of the display part 51 which is the most fragile among the display parts 51 as a whole. In addition, unlike the central portion 51b of the display portion 51, the peripheral portion 51a of the display portion 51 accommodated in the second case 50 is a frame body 57 that is a member that contacts and supports the lower portion of the peripheral portion 51a. Is installed. For this reason, the pressurized force F as mentioned above can be disperse | distributed to the frame main body 57 suitably, and it is hard to be damaged even as the display part 51 whole.

In addition, as shown in FIG. 5, the pressed force F has a difference between the thicknesses S and T so that the upper plate portion 50a of the second case 50 has a peripheral portion 54 compared with the center portion 53 thereof. Easy to deform Accordingly, the peripheral portion 54 is deformed so that the pressing portion of the display portion 51 most fragile in the display portion 51 accommodated in the second case 50 is avoided. In other words, the pressurized force F is applied to the peripheral portion 54 as the force F2.

Moreover, even if the peripheral part 54 of the upper plate part 50a of the 2nd case 50 is pressed, since the pressurized force F tends to escape to the member which comprises this case, it contributes to preventing the damage of the display part 51. FIG. . In addition, since an appropriate clearance is formed between the upper plate portion 50a and the display portion 51, even if the peripheral portion 54 is deformed by the pressurized force F, the center portion 53 of the upper plate portion 50a is the display portion. It is difficult to be pressed under pressure by being supported by 51.

Even if the upper plate portion 50a is bent so that the inner surface 53b comes into contact with the display portion 51, the inner surface 53b is formed in a planar shape. As a result, the entire display portion 51 is not easily broken.

In addition, the force F2 described above presses the frame main body 57 through the auxiliary frame 55 and the peripheral portion 51a of the display portion 51. Since the portable electronic device 1 is folded, the frame main body 57 is in contact with and supported by the periphery 15 of the first case 10, so that the pressure applied to the frame main body 57 is also preferable. To the first case 10. Therefore, the pressurized force F is preferably distributed in the edge portion A, B direction or the like to reduce or avoid the pressure applied to the center portion 51b of the display portion 51 which is the most fragile among the display portions 51 as a whole.

In addition, since the auxiliary frame 55 is thickly formed toward the center portion 53 of the upper plate portion 50a of the second case 50, the auxiliary frame 55 is formed at the center portion of the upper plate portion 50a of the second case 50. 53, the supporting force of the second case 50 to the upper plate portion 50a is increased. That is, the pressurized force F tends to fall into the frame main body 57 through the auxiliary frame 55 and further, the peripheral portion 51a of the display portion 51. Therefore, the pressurized force F can be preferably avoided in the direction of the edge portions A and B, thereby reducing the pressure applied to the central portion 51b of the display portion 51 which is the most fragile among the display portions 51 as a whole.

In the portable electronic device 1, as illustrated in FIGS. 3 and 4, the ratio L '/ L is 0.28 to 0.64 and the ratio M' / M is 0.42 to 0.71. Therefore, the peripheral part 54 of the upper plate part 50a of the said 2nd case 50 tends to deform | transform suitably compared with the center part 53. As shown in FIG. Moreover, since it is comprised so that "S / T" which is the value which divided | segmented the thickness S of the said center part by the thickness T of the peripheral part 54 is 1.2-3.0, the upper plate part 50a of the said 2nd case 50 The periphery 54 is more easily deformed than the central portion 53. Further, since the clearance U is formed between 1.5 mm and 3.5 mm between the upper portion 50a of the second case 50 and the center portion 53 of the display portion 51, the portable electronic device 1 Even in the case where pressure is applied, contact between the central portion 53 of the upper plate portion 50a, the display portion 51, and the electronic component 56a is preferably prevented.

As mentioned above, according to the said portable electronic device 1, even if the force F which becomes an external load like the pressurization from the outside is applied, the display part 51 built-in is hard to be damaged. In the case of the portable electronic device 1 described above, in the case of a fragile liquid crystal screen whose display unit 51 is large and lightweight, the second case 50 containing the display unit 51 is bent to be difficult to configure. Therefore, the liquid crystal screen is hard to be damaged.

In addition, the present invention is not limited to the above embodiments, and an appropriate selection can be made without departing from the spirit thereof.

That is, in the portable electronic device in the above-described embodiment, for example, the portable electronic device is configured in the portable electronic dictionary, but the present invention is not limited to this, but is not limited to the portable electronic device having a built-in display unit, such as an electronic book, an electronic book, furthermore. In the so-called tablet PC without a hinge, the above-described configuration can be adopted.

According to the present invention, it is possible to provide a portable electronic device which prevents the display portion from being pressurized even when it is pressed from the outside and prevents the display portion from being damaged.

Claims (9)

A first case including an operation unit and a control unit that performs predetermined control in accordance with an operation from the operation unit; A second case including a display unit for visually displaying an output signal from the control unit, an upper plate unit protecting the display unit, A portable electronic device having a hinge that hinges the first case and the second case, And the thickness of the center portion of the upper plate portion is different from the thickness of the peripheral portion of the upper plate portion. The method of claim 1, The portable electronic device is characterized in that the thickness of the central portion of the upper plate portion is set thicker than the thickness of the peripheral portion of the upper plate portion. The method of claim 1, The portable electronic device has a curved shape in which an outer surface of the central portion of the upper plate portion protrudes outward. The method of claim 1, The portable electronic device is a portable electronic device, wherein a central portion of a surface of the upper plate portion facing the display portion is flat. The method of claim 1, The portable electronic device is a portable electronic device, characterized in that the upper plate portion is made of magnesium alloy. The method of claim 1, The portable electronic device may further include: an auxiliary frame provided between the upper plate portion and the peripheral portion facing the display portion; And a frame main body provided to be in contact with and supported by the display unit on the side opposite to the side where the auxiliary frame of the display unit peripheral part is present. The method of claim 6, The base electronic device of claim 2, wherein the auxiliary frame is thickly formed toward the center of the second case. The method of claim 1, The portable electronic device is a value obtained by dividing the thickness of the central portion of the upper plate portion by the thickness of the peripheral portion of the upper plate portion of 1.2 to 3.0. Control panel, A control unit which performs predetermined control in accordance with an operation from the operation unit; A display unit for visually displaying an output signal from the control unit; Top plate to protect the display A portable electronic device comprising: The thickness of the center portion of the upper plate portion is different from the thickness of the peripheral portion of the upper plate portion.

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