TW201814426A - Hinge device and display device using the same - Google Patents

Abstract

A hinge device is provided. When the hinge device is in a fully opened state, a flexible display panel flatly unfolded. When the hinge device is in a closed state, a folded portion of the flexible display panel is in a semicircular arc shape. A first and second fixed guide link member of a first foleded portion of the hinge device are foleded oppositely to each other in a fully closed state. A first cam driving portion is operated, and a first and a second fixed cam plates are pivoted with respect to a first and second fixed guide link members respectively at an angle [alpha] 1. In accompany with the change of the angle [alpha]1, a first and second movable guide link members are pivots with respect to the first and second fixed cam plates respectively at an angle [alpha]2 so that the first main cam plate is erected at a right angle between the first and second fixed guide link members.

Description

 Hinge device and display device using the same  

The present invention relates to a hinge technique for a folded portion in which a flexible display panel having flexibility such as an organic electroluminescence panel or a liquid crystal panel is reciprocally disposed in a display device.

A display device has been proposed in which a flexible display panel such as an organic EL panel or a liquid crystal panel is reciprocally arranged, and a housing is connected by a hinge means to one side. The housing and the housing on the other side can be opened. In the display device disclosed in Japanese Laid-Open Patent Publication No. 2015-064570, the soft display substrate is used to sandwich both sides of the flexible display panel. If a pair of housings are overlapped, the folded portion is formed into a predetermined radius in the elastic deformation region. shape.

When a pair of housings are opened, a return line is formed by the restoring force of the flexible substrate to provide a display surface having a large planar size.

By adjusting the spacing of the pair of housings relative to the flexible substrate, the hinge means can obtain a folded portion of a predetermined radius.

However, such a hinge means is that the folded portion of the flexible display panel is formed to be freely deformable. Therefore, if the elastic deformation region is exceeded, a deformation force is applied to the flexible display panel, and the flexible display panel is bent at the folded portion, and the flexible display panel is damaged.

An object of the present invention is to provide a hinge device and a display device using the same, which are configured to extend the entire flexible display panel in a fully open state, and to hold the folded portion of the flexible display panel in a semi-arc shape in a closed state.

In order to solve the first configuration of the hinge device according to the present invention, there is provided a hinge device in which the first casing and the second casing are reciprocally connected from a fully open state to a fully closed state. The hinge device has: a guiding link portion continuously provided with one or a plurality of folded portions, wherein the folding portion is a first fixed guiding link member, a first movable guiding link member, a second movable guiding link member and a second fixed guiding link element is arranged in parallel along the order; and a cam mechanism is disposed on both sides of the guiding link portion, and the first portion is disposed along a direction in which the guiding link member is disposed Each of the fixed guiding link member, the first movable guiding link member, the second movable guiding link member, and the second fixed guiding link member is telescopically coupled, and moves from a fully open state to a fully closed state a state in which the interval between the adjacent guide link elements is enlarged, and the first movable guide link member and the second movable guide link member are defined as a boundary between the first movable guide link member and the first movable guide link The element and the second movable guiding link member are symmetrically rotated to face each other in a direction of facing a predetermined rotation angle, and the fully open position is to cause the first fixed guiding link member a plane formed by the first movable guiding link element, the second movable guiding link element and the second fixed guiding link element is a flat surface, and the fully closed position is the first fixed guiding link element and the foregoing The two fixed guiding link members are opposed to each other with a predetermined interval.

In a second configuration of the hinge device according to the present invention, the cam mechanism includes: a first sub-cam plate that connects the first fixed guide link member and the first movable guide The link member is coupled by a cam, and the first movable guiding link member is opposite to each other with a rotation motion with respect to the first fixed guiding link member rotating from a lower limit rotation angle forming the flat surface to a first rotation angle The first fixed guiding link member is rotated to a second rotation angle from a lower limit rotation angle forming the flat surface; and the second auxiliary cam plate is configured to connect the second fixed guiding link member and the first The second movable guiding link member is coupled by the cam, and rotates to the first rotation in a direction opposite to a rotation direction of the first rotation angle with respect to the second fixed guiding link member from a lower limit rotation angle forming the flat surface An angular rotation action of the second movable guiding link member with respect to the second fixed guiding link element Expanding the interval, rotating from a lower limit rotation angle forming a flat surface to a second rotation angle opposite to a rotation direction of the second rotation angle; and a main cam plate connecting the first movable guide at both end portions The link member and the second movable guiding link member are cam-coupled, and the flat portion is formed as the first movable guiding link member and the second movable guiding link member are respectively rotated to a second rotation angle The lower limit rotation angle of the surface is rotated to the third rotation angle in the mutually facing direction; and the angle sum of the first rotation angle, the second rotation angle, and the third rotation angle is set to 90 degrees.

In the second configuration of the hinge device according to the second aspect of the present invention, the cam mechanism is configured such that the first sub-cam plate and the second sub-cam plate are disposed in front of and behind the thickness direction of the main cam plate. At the same time, the first sub-cam plate and the second sub-cam plate are disposed on both sides of the main cam plate along the direction of the guide link member, and are further unitized.

In the fourth or third configuration of the hinge device for solving the problem of the present invention, the first fixed guide link member and the second fixed guide link member are along the guide link member. Having a direction and being bilaterally symmetrical, each having a freely rotatable fulcrum forming a pivot point and a rotation transmitting shaft for transmitting a rotational force, the first movable guiding link member and the second movable guiding link member being along the guiding link The rod elements are laterally symmetrical, and each has a freely rotatable support shaft forming a rotation fulcrum and a rotation transmission shaft for transmitting a rotational force; the first sub cam plate is formed with a first sub cam portion at both end portions and a second sub cam portion having a cam groove formed in the first sub cam portion, wherein a support shaft and a rotation transmission shaft of the first fixed guide link member are engaged with each other, and a cam is formed in the second sub cam portion a groove, wherein the fulcrum and the rotation transmission shaft of the first movable guiding link element are respectively engaged; and the second sub-cam plate is formed with a first sub-cam portion at both end portions a second sub cam portion having a cam groove formed in the first sub cam portion, wherein a support shaft and a rotation transmission shaft of the second fixed guide link member are engaged with each other, and a cam is formed in the second sub cam portion a groove that engages a fulcrum and a rotation transmission shaft of the second movable guiding link element; wherein the main cam plate has a first main cam portion and a second main cam portion formed at both end portions, The first main cam portion is formed with a cam groove that engages a fulcrum and a rotation transmission shaft of the first movable guiding link member, and a cam groove is formed in the second main cam portion, and the cam grooves are respectively engaged The fulcrum and the rotation transmission shaft of the second movable guiding link member.

In a fifth configuration of the hinge device according to the fourth aspect of the present invention, in the fourth configuration, the main cam plate rotates each of the rotation guiding axes of the first guiding link element and the second guiding link element. .

A first configuration of a display device for solving the problems of the present invention includes: a hinge device such as the above-described first to fifth hinge devices; and a first housing that is assembled to guide the guide link portion The connecting rod member is provided with a fixed guiding link member disposed at one side of the two ends of the direction; a second housing is assembled to the guiding link member of the guiding link portion and disposed on the other side of the opposite ends of the connecting rod a fixed guide link member; and a flexible display panel that is flexible and assembled to the first housing and the second housing.

In a second configuration of the display device according to the present invention, in the first configuration of the display device, the guide link portion includes a first folded portion and a second folded portion, and the first folded portion is folded back. In a fully closed state, the first casing and the second casing face oppositely, and in a second fully closed state in which the second folded portion is folded back, the second casing is offset from the first casing On the other hand, a part of the flexible display panel is exposed on the first casing.

In a suitable embodiment of the hinge device of the present invention, each mechanism is actuated by closing the first housing and the second housing to a fully closed state, the first movable guiding link member of the folded portion and the second movable The guide link members are symmetrically inclined to face each other in a direction perpendicular to each other to a predetermined rotation angle, and the opposing distances of the first fixed guide link member and the second fixed guide link member are maintained to form a shape in which the folded portion is integrally curved. Therefore, the position of the folded portion is an outer peripheral surface of the semicircular arc portion formed by folding back along the flexible display panel disposed between the first casing and the second casing. Therefore, the semicircular arc portion of the flexible display panel can be protected.

Further, when the entire folded portion is flattened, the interval between the first fixed guiding link member, the first movable guiding link member, the second movable guiding link member, and the second fixed guiding link member of the folded portion is reduced. The flexible display panel can be unfolded flat.

Furthermore, by providing a plurality of folded portions, a part of the flexible display panel can be exposed in the fully closed state.

In a suitable embodiment of the hinge device of the present invention, the interval between the first fixed guiding link member, the first movable guiding link member, the second movable guiding link member and the second fixed guiding link member of the folded portion may be At the same time of expansion and contraction, in the fully closed state, the first movable guiding link element and the second movable guiding link element may be symmetrically arranged between the first housing and the second housing.

In a suitable embodiment of the hinge device of the present invention, the cam mechanism can be easily assembled to the first fixed guiding link member, the first movable guiding link member, the second movable guiding link member, and the second fixed guiding link. element.

In a suitable embodiment of the hinge device of the present invention, the cam mechanism can be constructed in a small size.

In a suitable embodiment of the display device of the present invention, when the flexible display panel is disposed across the first housing and the second housing, even if the first housing and the second housing are closed to the fully closed state, The semicircular arc portion formed by the folding back of the flexible display panel can be protected by the folded portion of the hinge device.

In a preferred embodiment of the display device of the present invention, even if it is in the fully closed state, a part of the flexible display panel may be exposed as a display portion.

1 is a schematic perspective view showing an embodiment of a display device according to the present invention, and shows a composite view of a first fully closed state, a second fully closed state, and a fully open state.

Fig. 2 is a schematic perspective view showing a fully opened state of the display device of Fig. 1;

Fig. 3 is a schematic perspective view showing a first fully closed state of the display device shown in Fig. 1;

Fig. 4 is a schematic perspective view showing a second fully closed state of the display device shown in Fig. 1;

Fig. 5 is a schematic exploded perspective view showing an embodiment of a hinge device of the present invention provided in the display device of Fig. 1;

Figure 6 is a partially enlarged perspective view of the hinge device of Figure 5.

Figure 7 is a front elevational view of the fixed guide link member of the hinge device of Figure 6.

Figure 8 is a front elevational view of the movable guiding link member of the hinge device of Figure 6.

Figure 9 is a front elevational view of the fixed link plate of the hinge device of Figure 6.

Figure 10 is a front elevational view of the movable guiding link plate of the hinge device shown in Figure 6;

Figure 11 is a front elevational view of the sub-cam plate of the hinge device of Figure 6.

Figure 12 is a front elevational view of the main cam plate of the hinge device of Figure 6.

Figure 13 is a view showing a state in which the first sub-cam plate is rotated to an angle ? 1 with respect to the first fixed guide link member.

Fig. 14 is a view showing a state in which the first movable guiding link member is rotated to the angle α 2 as the first sub-cam plate is rotated to α 1 .

Fig. 15 is a view showing a state in which the first main cam plate is rotated to an angle β with respect to the first movable guiding link member.

Hereinafter, the present invention will be described in detail based on the embodiments shown in the drawings.

Fig. 1 is a schematic perspective view showing an embodiment of a display device according to the present invention, and shows a composite view of a first fully closed state, a second fully closed state, and a fully open state. 2 is a schematic perspective view showing a fully open state of the display device of FIG. 1, FIG. 3 is a schematic perspective view showing a first fully closed state of the display device shown in FIG. 1, and FIG. 4 is a display device shown in FIG. A schematic oblique view of the second fully closed state. Fig. 5 is a schematic exploded perspective view showing an embodiment of a hinge device provided in the display device of Fig. 1, and Fig. 6 is a partially enlarged perspective view of the hinge device of Fig. 5. In addition, in FIGS. 3 and 4, illustration of the right cam mechanism 30R and the left cam mechanism 30L is omitted.

The display device 1 includes a flexible display panel 2 such as an organic EL panel or a liquid crystal panel, a first case 3, a second case 4, a hinge device 5, and the like. The first housing 3 and the second housing 4 are connected to each other through the hinge device 5. One end of the flexible display panel 2 in the longitudinal direction is assembled to the first casing 3, and the other end in the longitudinal direction is assembled to the second casing 4.

The hinge device 5 has a guide link portion 10, a right cam mechanism 30R, a left cam mechanism 30L, a link shaft 50, and a guide pin 55. The guide link portion 10 is slightly the same length as the short side direction of the flexible display panel 2, right. The cam mechanism 30R and the left cam mechanism 30L are respectively disposed at both ends in the width direction of the respective guide link members 11 to 17 of the guide link portion 10, and the link shaft 50 (the first link shaft 50a to the twentieth link shaft) 50t) is disposed in a loosely fitted state in each of the guide link elements 11 to 17 which constitutes the guide link portion 10, and the guide pins 55 (the first guide pin 55a to the twentieth guide pin 55t) are respectively pressed into the link Both ends of the shaft 50. The engagement shaft 60 is formed by the link shaft 50 and the guide pin 55, and is engaged with the right cam mechanism 30R and the left cam mechanism 30L, which will be described later.

The guiding link portion 10 has a first folded portion 10A and a second folded portion 10B. The first folded portion 10A is composed of a first fixed guiding link member 11, a second fixed guiding link member 12, and a first movable guiding link. The element 14 and the second movable guiding link element 15 are configured, and the second folded portion 10B is composed of the second fixed guiding link element 12, the third movable guiding link element 16, the fourth movable guiding link element 17, and the The three fixed guide link elements 13 are constructed.

Each of the guide link elements 11 to 17 constituting the first folded portion 10A and the second folded portion 10B is disposed in parallel along the guide link member. The first fixed guide link member 11 to the third fixed guide link member 13 have the same structure and size, and the first movable guide link member 14 to the fourth movable guide link member 17 have the same structure and size.

The widths of the first movable guiding link member 14 to the fourth movable guiding link member 17 (longitudinal direction of the flexible display panel 2) are set to be compared with the first fixed guiding link member 11 to the third fixed guiding link. The width of the element 13 (the longitudinal direction of the flexible display panel 2) is also narrow.

The first fixed guiding link element 11 disposed at one end of the guiding link portion 10 is assembled to the first housing 3, and the third fixed guiding link member 13 disposed at the other end of the guiding link portion 10 is assembled. Two housings 4.

The first folded portion 10A is disposed with the first movable guiding link member 14, the second movable guiding link member 15, and the second in sequence from the first fixed guiding link member 11 in the direction in which the guiding link member is disposed. The guide link member 12 is fixed. The second folded portion 10B is disposed with the third movable guiding link member 16, the fourth movable guiding link member 17, and the third in sequence from the second fixed guiding link member 12 in the direction in which the guiding link member is disposed. The guide link member 13 is fixed.

As shown in FIG. 2, the hinge device 5 is placed on the same plane with the respective guide link members 11 to 17 of the first folded portion 10A and the second folded portion 10B, and can be held on the flat surface of the flexible display panel 2 Fully open. The hinge device 5 is configured to be openable by selecting the first fully closed state or the second fully closed state from the fully open state. As shown in FIG. 3, the first fully closed state folds the first folded portion 10A into a half. The arc shape is such that the first housing 3 and the second housing 4 are spaced apart from each other by a predetermined relative distance and are disposed opposite to each other. As shown in FIG. 4, the second fully closed state folds the second folded portion 10B into a state. In a slightly semi-arc shape, the first housing 3 and the second housing 4 are placed in a state in which the guide link elements are displaced in the direction of the guide link elements.

The right cam mechanism 30R and the left cam mechanism 30L have a first cam driving portion 30A and a second cam driving portion 30B that correspond to the first folded portion 10A and the second folded portion 10B, respectively.

In the first fully closed state, the radius of the semi-circular arc portion of the flexible display panel 2 bent into a semi-arc shape on the inner side of the first folded portion 10A is slightly semicircular with respect to the curvature formed by the first folded portion 10A. The radius of the curved bend is also small. As a result, the arc length of the curved portion of the first folded portion 10A is longer than the arc length of the semicircular arc portion of the flexible display panel 2, resulting in an arc length difference.

Therefore, when the first fully closed state shown in FIG. 3 is opened to the fully open state shown in FIG. 2, the first folded portion 10A is bent due to the arc length difference, and the first folded portion 10A is not disposed on the straight line. The second housing 4 is inclined with respect to the first housing 3. Here, in order to absorb the arc length difference, the first folded portion 10A and the second folded portion 10B can expand and contract the intervals of the adjacent guide link members 11 to 17 so as to guide the respective lead links of the link member 10 in the fully open state. The lever elements 11 to 17 can be arranged on a straight line. The above-described retractable motion is performed by the first cam portion 30A (second cam portion 30B), which will be described later in detail.

The configuration of the guide link portion 10

As shown in FIG. 7, the first fixed guide link member 11 to the third fixed guide link member 13 are formed into a substantially rectangular parallelepiped shape having a height H1, a short-side direction length W1, and a long-side direction length D1 (D1>W1). . The first fixed guide link member 11 to the third fixed guide link member 13 are formed with through holes 10a, 10b, 10c, and 10d having four inner diameters d1 from the lower end to the upper end at a height (axial position height) H2. It penetrates along the longitudinal direction and has a space.

The distance between the first through hole 10a and the second through hole 10b formed from one end side to the other end side in the short side direction is E1, and the distance between the second through hole 10b and the third through hole 10c is set. In the case of E2, the distance between the axes of the third through hole 10c and the fourth through hole 10d is E3, and the distance between the axes E1 and the distance E3 between the axes are the same distance. For example, E1=E3=1.888 mm, E2=3.18 mm, H1=2.93 mm, H2=1.71 mm, W1=9.38 mm, D1=67 mm, and d1=1.5 mm.

As shown in FIG. 8, the first movable guiding link member 14 to the fourth movable guiding link member 17 are formed to have a height H3 (H3 = H1), a short-side direction length W2 (W2 < W1), and a long-side direction length D2. A slightly rectangular shape of (D2=D1>W2). The first movable guiding link member 14 to the fourth movable guiding link member 17 are formed with a fifth through hole 10e having two inner diameters d1 from the lower end to the upper end at a position of height (axial position height) H4 (H4 = H2). The sixth through hole 10f penetrates in the longitudinal direction, and the fifth through hole 10e and the sixth through hole 10f have an inter-axis distance E4 (E4=E1=E3).

Each of the first through hole 10a to the fourth through hole 10d of each of the fixed guiding link elements 11 to 13 and the fifth through hole 10e and the sixth through hole 10f of each of the movable guiding link elements 14 and 15 are inserted with a connecting rod The shaft 50 (the first link shaft 50a to the twentieth link shaft 50t).

The length of the link shaft 50 and the lengths of the first fixed guide link member 11 to the third fixed guide link member 13 and the first movable guide link member 14 to the fourth movable guide link member 17 (D1) , D2) the same.

The link shaft 50 (the first link shaft 50a to the twentieth link shaft 50t) is formed to have an outer diameter d2. The outer diameter d2 is formed to be smaller than the inner diameter d1 of each of the through holes 10a to 10f. Further, the link shaft 50 (the first link shaft 50a to the twentieth link shaft 50t) is formed with an inner diameter hole 51 having an inner diameter d3.

Engagement shafts 60 are formed at both end portions of the link shafts 50, and are formed by pressing the guide pins 55 into the inner diameter holes 51 of the link shafts 50. The guide pin 55 is formed with a head portion 57 at one end of the shaft portion 56 having an outer diameter d4 (d4 = d3).

When the inner diameter d1 of the first through hole 10a to the sixth through hole 10f is 1.5 mm and the outer diameter d2 of the link shaft 50 is 1 mm, the through holes 10a to 10f are opposed to the connecting rod. The shaft 50 has a gap of 0.5 mm. Therefore, the engagement shaft 60 is rotatable relative to the first fixed guide link member 11 to the third fixed guide link member 13, and the first movable guide link member 14 to the fourth movable guide link member 17.

The composition of the left cam mechanism 30L

As shown in FIGS. 5 and 6, the left cam mechanism 30L has a first cam driving portion 30A and a second cam driving portion 30B, and corresponds to the first folded portion 10A and the second folded portion 10B.

The first cam driving portion 30A has an inner first link plate array 41A, an outer first link plate array 42A, a first sub-cam plate 71A, a second sub-cam plate 71B, and a first main cam plate 71C. The first sub-bar plate array 41A and the outer first link plate array 42A are disposed between the first sub-cam plate 71A, the second sub-cam plate 71B, and the first main cam plate 71C. The first sub-cam plate 71A and the second sub-cam plate 71B are disposed in front and rear of the first main cam plate 71C in the thickness direction.

The second cam driving portion 30B is the same as the first cam driving portion 30A, and has an inner second link plate array 41B, an outer second link plate array 42B, a third sub-cam plate 71D, a fourth sub-cam plate 71E, and a second. Main cam plate 71F. The third sub-bar plate row 41B and the outer second link plate row 42B are disposed between the second sub-bar plate row 71B, the fourth sub-cam plate 71E, and the second main cam plate 71F. The third sub-cam plate 71D and the fourth sub-cam plate 71E are disposed in front and rear of the second main cam plate 71F in the thickness direction.

The configuration and operation of each of the cam plates constituting the first cam driving portion 30A and the second cam driving portion 30B will be described later.

The first guide pin 55a to the tenth guide pin 55j are formed on the inner first link plate row from the respective shaft holes of the respective link plates (421 to 424) formed on the outer first link plate array 42A. The shaft holes of the link plates (411 to 424) of the 41A are further pressed into the inner diameter holes 51 of the first link shaft 50a to the tenth link shaft 50j, so that the first cam drive portion 30A is unitized.

The eleventh guide pin 55k to the twentieth guide pin 55t are formed on the inner second link from the respective shaft holes of the respective link plates (424 to 427) formed on the outer second link plate array 42B. The shaft holes of the respective link plates (414 to 417) of the plate row 41B are pressed into the inner diameter holes 51 of the eleventh link shafts 50k to 50t, so that the second cam driving portion 30B is unitized.

The first guide pin 55a to the tenth guide pin 55j are inserted into the respective shaft holes of the respective link plates (411 to 424) of the inner first link plate array 41A and formed on the outer first link plate array 42A. The shaft holes of the respective link plates (421 to 424) maintain the distance between the axes of the engagement shafts 60 of the first cam driving portion 30A by a predetermined distance. The second cam driving portion 30B is also the same.

The inner first link plate array 41A abuts against the left end surface of the first movable guiding link member 14 by abutting against the inner first fixed link plate 411 of the left end surface of the first fixed guiding link member 11 The inner first movable link plate 412, the inner second movable link plate 413 abutting against the left end surface of the second movable guiding link member 15, and the inner side of the left end surface abutting the second fixed guiding link member 12 Two fixed link plates 414 are formed.

The outer first link plate array 42A is constituted by the outer first fixed link plate 421, the outer first movable link plate 422, the outer second movable link plate 423, and the outer second fixed link plate 424.

The outer first fixed link plate 421, the outer first movable link plate 422, the outer second movable link plate 423, and the outer second fixed link plate 424 have predetermined intervals, and the inner first fixed link plate 411. The inner first movable link plate 412, the inner second movable link plate 413, and the inner second fixed link plate 414 are disposed opposite to each other.

The inner second link plate array 41B abuts against the left end surface of the third movable guiding link member 16 by abutting against the inner second fixed link plate 414 of the left end surface of the second fixed guiding link member 12 The inner third movable link plate 415, the inner fourth movable link plate 416 abutting on the left end surface of the fourth movable guiding link member 17, and the inner side of the left end surface abutting the third fixed guiding link member 13 The three fixed link plates 417 are constructed.

The outer second link plate array 42B is constituted by the outer second fixed link plate 424, the outer third movable link plate 425, the outer fourth movable link plate 426, and the outer third fixed link plate 427.

The outer third movable link plate 425, the outer fourth movable link plate 426, and the outer third fixed link plate 427 have a predetermined interval, and the inner third movable link plate 415 and the inner fourth movable link member 416. And the inner third fixed link plate 417 is disposed opposite to each other.

The composition of the inner first fixed link plate 411

The inner and outer fixed link plates (411, 414, 417, 421, 424, and 427) are formed in the same manner, and the inner first fixed link plate 411 will be described with reference to Fig. 9 .

In FIG. 9, the inner first fixed link plate 411 is formed into a rectangular flat plate shape having a thickness t. The link plate body 401 is formed to have the same length in the longitudinal direction as the first fixed guide link member 11. A first shaft hole 401a, a second shaft hole 401b, a third shaft hole 401c, and a fourth shaft hole 401d are respectively formed in the link plate body 401, and are connected to the first through hole 10a of the first fixed guiding link member 11. The center of the fourth through hole 10d is uniform.

The distance between the axes of the first shaft hole 401a and the second shaft hole 401b is set to e1, the distance between the axes of the second shaft hole 401b and the third shaft hole 401c is set to e2, and the third shaft hole 401c and the fourth shaft hole 401d The distance between the axes is set to e3. The inter-axis distances e1, e2, and e3 of the link plate main body 401 are set to be equal to the inter-axis distances E1, E2, and E3 of the through holes 10a, 10b, 10c, and 10d of the first fixed guide link element 11.

The respective inner diameters d5 of the first to fourth axial holes 401a to 401d and the outer diameter d3 of the shaft portion 56 of the guide pin 55 are set to have the same diameter.

Further, the first to fourth axial holes 401a to 401d are formed on the reference line LS which is formed as a straight line. The reference line LS is set to a height H5 from the lower end of the link plate body 401. The height H5 is set to be smaller than the axial position height H2 of the first fixed guide link member 11 so that the first fixed guide link member 11 is placed on a mounting surface such as a table, and the inner fixed link The plate 411 does not come into contact with the aforementioned mounting surface. Further, the upper end of the inner fixed link plate 411 protrudes slightly upward from the upper end of the first fixed guide link member 11.

Further, the four axial holes formed in the inner second fixed link plate 414 and the outer second fixed link plate 424 are defined as the ninth shaft hole 401i to the twelfth shaft hole 401l. The four axial holes formed in the inner third fixed link plate 417 and the outer third fixed link plate 427 of the second cam driving portion 30B are the seventeenth axial hole 401q to the twentieth axial hole 401t.

The composition of the inner first movable link plate 412

The movable link plates (412, 413, 415, 416, 422, 423, 425, and 426) on the inner side and the outer side are formed in the same manner, and the inner first movable link plate 412 will be described with reference to Fig. 10 .

As shown in FIG. 10, the inner first movable link plate 412 is formed into a rectangular flat plate shape having a thickness t. The link plate body 402 is formed in the same length as the first movable guiding link member 14 and is respectively formed with a fifth shaft hole 402e and a sixth shaft hole 402f which are respectively coupled to the first movable guiding link member 14. The centers of the fifth through hole 10e and the sixth through hole 10f are identical. When the distance between the axes of the fifth shaft hole 402e and the sixth shaft hole 402f is e4, the inter-shaft distance e4 is set to be the fifth through hole 10e and the sixth through hole 10f of the first movable guiding link member 14. The distance between the axes is the same as E4. Further, the inner diameter d6 of the fifth shaft hole 402e and the sixth shaft hole 402f and the outer diameter d3 of the shaft portion 56 of the guide pin 55 are set to have the same diameter.

Further, the fifth shaft hole 402e and the sixth shaft hole 402f are formed on the reference line LS which is a straight line. The reference line LS is set to a height H6 from the lower end of the link plate body 402. The height H6 is set to be smaller than the axial position height H4 of the first movable guiding link member 14 so that the first movable guiding link member 14 is placed on a mounting surface such as a table, and the inner first movable The link plate 42A does not come into contact with the aforementioned mounting surface. Further, the upper end of the inner first movable link plate 412 protrudes slightly upward from the upper end of the first movable guiding link member 14.

Further, the two axial holes formed in the inner second movable link plate 413 and the outer second movable link plate 423 are referred to as seventh axial holes 402g and 402h. The two axial holes formed in the inner third movable link plate 415 and the outer third movable link plate 425 of the second cam driving portion 30B are the thirteenth axial hole 402m and the fourteenth axial hole 402n. The two axial holes formed in the inner fourth movable link plate 416 and the fifth outer movable link plate 426 are defined as a fifteenth axial hole 402o and a sixteenth axial hole 402p.

The first guide pin 55a to the fourth guide pin 55d respectively penetrate the first to fourth axial holes 401a to 401d of the inner first fixed link plate 411 and the outer first fixed link plate 421, and are then pressed into the first connection. The inner diameter hole 51 of the rod shaft 50a to the fourth link shaft 50d. The engagement of the first guide pin 55a and the second guide pin 55b with the cam groove of the first cam driving portion 30A does not occur.

The fifth guide pin 55e and the sixth guide pin 55f respectively penetrate the fifth shaft hole 402e and the sixth shaft hole 402f of the inner first movable guiding link plate 412 and the outer first movable link plate 422, and are pressed into the fifth. The connecting rod shaft 50e and the inner diameter hole 51 of the sixth connecting rod shaft 50f.

The seventh guide pin 55g and the eighth guide pin 55h respectively penetrate the seventh axial hole 402g and the eighth axial hole 402h of the inner second movable guiding link plate 413 and the outer first movable link plate 423, and are pressed into the seventh. The connecting rod shaft 50g and the inner diameter hole 51 of the eighth connecting rod shaft 50h.

The ninth guide pin 55i to the twelfth guide pin 55l respectively penetrate the ninth shaft hole 401i to the twelfth shaft hole 401l of the inner second fixed link plate 414 and the outer first fixed link plate 424, and are pressed into the first The inner diameter hole 51 of the nine-link shaft 50i to the twelfth link shaft 50l.

Further, the thirteenth guide pin 55m to the twentieth guide pin 55t also penetrate the inner third movable link plate 415, the outer third movable link plate 425, the inner fourth movable link plate 416, and the outer fourth movable link, respectively. Each of the shaft holes 402m, 402n, 402o, 402p, 401q~401t of the rod plate 426, the inner third fixed link plate 417, and the outer third fixed link plate 427 is pressed into the thirteenth link shaft 50l~2 The inner diameter hole 51 of the ten-link shaft 50t.

Cam plate configuration

As shown in FIG. 6, the first sub-cam plate 71A and the second sub-cam plate 71B are disposed in front and rear of the first main cam plate 71C in the thickness direction. The second cam driving portion 30B is the same as the first cam driving 30A, and the third sub-cam plate 71D and the fourth sub-cam plate 71E are disposed in front and rear of the second main cam plate 71F in the thickness direction.

As shown in FIG. 6, a slight half of the longitudinal direction of the first sub-cam plate 71A protrudes from the left end of the first fixed guiding link member 11 to the left side. A slight half of the second sub-cam plate 71B in the longitudinal direction protrudes from the right end of the second fixed guiding link member 12 to the right side. On the other hand, a slight half of the third sub-cam plate 71D in the longitudinal direction protrudes from the left end of the second fixed guiding link member 12 to the left side. A slight half of the fourth sub-cam plate 71E in the longitudinal direction protrudes from the right end of the third fixed guiding link member 13 to the right side.

The second sub-cam plate 71B of the first cam driving portion 30A is formed to be opposite to the left-right direction of the first sub-cam plate 71A. For example, if the first sub-cam plate 71A is turned over, it can be used as the second sub-cam plate 71B. . The fourth sub-cam plate 71E of the second cam driving portion 30B is formed to be opposite to the left-right direction of the third sub-cam plate 71D. For example, when the first sub-cam plate 71A is turned over, it can be used as the second sub-cam plate 71B. . The first sub-cam plate 71A and the third sub-cam plate 71D are formed in the same configuration. The first main cam plate 71C and the second main cam plate 71F are formed in the same configuration.

The cam plates 71A to 71F constituting the first cam driving portion 30A and the second cam driving portion 30B are formed to have a thickness t. Among the guide pins 55a to 55t, the first guide pin 55a, the second guide pin 55b, the nineteenth guide pin 55s, and the twentieth guide pin 55t, which are not penetrated by one cam plate, are inserted into a circle having a thickness of 3t. The barrel 76 has a large size partition 76. The third guide pin 55c, the fourth guide pin 55d, the ninth guide pin 55i, the tenth guide pin 55j, the eleventh guide pin 55k, the twelfth guide pin 55l, and the seventeenth guide pin 55q that penetrate only one cam plate The eighteenth guide pin 55r is inserted into a cylindrical shape-sized partition 77 having a thickness of 2t. The fifth guide pin 55e, the sixth guide pin 55f, the seventh guide pin 55g, the eighth guide pin 55h, the thirteenth guide pin 55m, the fourteenth guide pin 55n, and the fifteenth guide pin that penetrate only the two cam plates The 55o and the sixteenth guide pin 55p are inserted into a cylindrical small-sized partition 78 having a thickness t. Therefore, the cam plates 71A to 71F constituting the first cam driving portion 30A and the second cam driving portion 30B are not loosely held in the axial direction of the guide pin 55.

Fig. 11 shows the first sub-cam plate 71A constituting the first cam driving portion 30A, and Fig. 12 shows the first main cam plate 71C.

In Fig. 11, the first sub-cam plate 71A is formed by a flat plate having a thickness t in a slightly inverted trapezoidal shape. In the sub-cam plate main body 80, a line from the lower end along the longitudinal direction of the height h0 is referred to as a reference line LS. The sub cam plate main body 80 has a first sub cam portion 81 on the right side in the longitudinal direction and a second sub cam portion 82 on the left side.

The composition of the first sub cam portion 81

The first sub cam portion 81 has a first rotation shaft sub cam groove 81A formed as a long hole and a first rotation range restriction sub cam groove 81B formed as a long hole. The groove width d7 of the first rotating shaft sub cam groove 81A and the groove width d8 of the first rotation range restricting sub cam groove 81B are set to be equal to the outer diameter d3 of the guide pin 55. The center of the lower end circular arc portions 81a and 81b on the lower end side of the first rotation axis sub cam groove 81A and the first rotation range restricting sub cam groove 81B is located on the reference line LS and has an inter-axis distance e5 (e5=e1). . In addition, the linear distance between the first rotary shaft sub-cam groove 81A and the center position of the upper end circular arc portions 81c and 81d on the upper end side of the first rotation range restricting sub cam groove 81B is set to L1 (L1=e5).

The fourth guide pin 55d is engaged with the first rotary shaft sub cam groove 81A, and the third guide pin 55c is engaged with the first rotation range restricting sub cam groove 81B. The first rotating shaft sub cam groove 81A and the first rotation range restricting sub cam groove 81B are formed obliquely upward to the right in FIG. 11 . The state in which the third guide pin 55c and the fourth guide pin 55d are located on the reference line LS is a state in which the rotation angle of the first movable guiding link member 14 is 0 degree.

When the first sub-cam plate 71A rotates clockwise (positive rotation direction) with respect to the first fixed guide link element 11 in the closing operation, the fourth guide pin is in the first rotary shaft sub-cam groove 81A. The engagement position of the 55d is moved from the lower end arc portion 81a to the upper end arc portion 81c as the cam track is moved, and as a result, the first sub-cam plate 71A is moved to the first movable guiding link member 14 side, the first fixing The interval between the guide link member 11 and the first movable guiding link member 14 is enlarged. Until the upper end arc portion 81d of the first rotation range restricting sub cam groove 81B abuts against the third guide pin 55c, the first sub cam plate 71A is rotated from the rotation angle by 0 degrees to the rotation angle α1.

Here, the length along the reference line LS of the lower end arc portion 81a and the upper end arc portion 81c of the first rotation axis sub cam groove 81A is L2, and the sub-cavity groove 81A is restricted along the first rotation range. The length of the reference line LS of the lower end arc portion 81b and the upper end arc portion 81d is L3, the height of the upper end arc portion 81c with respect to the reference line LS is h1, and the upper end arc portion 81d is with respect to the reference line LS. The height is set to h2, and the difference between the upper end arc portion 81d and the upper end arc portion 81c is h3 (h3 = h2 - h1).

If e5=1.888 mm, L1=1.888 mm, L2=0.75 mm, L3=0.61 mm, h1=1.09 mm, h2=1.09 mm, h3=0.71 mm, the maximum rotation angle α 1 of the first sub-cam plate 71A is obtained. By sin α 1=h3/L1=0.375, α 1 = about 22 degrees. Further, the sub-cam plate main body 80 has a total length of 9.95 mm and a height of 3.42 mm.

The composition of the second sub cam portion 82

The second sub cam portion 82 has a second rotary shaft sub cam groove 82A formed as a long hole and a second rotation range restricting sub cam groove 82B formed as a long hole. The fifth guide pin 55e is engaged with the second rotary shaft sub cam groove 82A, and the sixth guide pin 55f is engaged with the second rotation range restricting sub cam groove 82B. The fifth guide pin 55e and the sixth guide pin 55f are press-fitted into the inner diameter hole 51 of the fifth link shaft 50e and the sixth link shaft 50f, and the fifth link shaft 50e and the sixth link shaft 50f are inserted. A movable guiding link member 14. The second rotating shaft sub cam groove 82A and the second rotation range restricting sub cam groove 82B are formed obliquely upward to the left in FIG. 11 . The state in which the fifth guide pin 55e and the fourth guide pin 55f are located on the reference line LS is a state in which the rotation angle of the first movable guiding link member 14 with respect to the first sub-cam plate 71A is 0 degree.

The groove width d9 of the second rotating shaft sub cam groove 82A and the groove width d10 of the second rotation range restricting sub cam groove 82B are set to be equal to the outer diameter d3 of the guide pin 55. The center of the lower end circular arc portions 82a and 82b on the lower end side of the second rotating shaft sub cam groove 82A and the second rotation range restricting sub cam groove 82B is located on the reference line LS and has an inter-axis distance e6 (e6=e1). Moreover, the linear distance between the center positions of the upper end circular arc portions 82c and 82d on the upper end side of the second rotation axis sub cam groove 82A and the second rotation range restriction sub cam groove 82B is set to L4 (L1=e5).

If the first sub-cam plate 71A rotates from the rotation angle of 0 degrees to the clockwise direction (forward rotation direction) to α1 with the closing operation, the fifth guide pins 55e and 55f whose axes are fixed will follow the second rotation. The cam lobe of the shaft sub cam groove 82A and the second rotation range restricting sub cam groove 82B is moved from the lower end arc portions 82a and 82b to the upper end arc portions 82c and 82d. As a result, the first movable guiding link element 14 abuts against the second rotation range restricting pair with respect to the first sub-cam plate 71A with respect to the first auxiliary cam plate 71f while moving away from the first fixed guiding link element 11. The upper end arc portion 82d of the cam groove 82B is rotated from the rotation angle 0 to the rotation angle α 2 .

Here, the length of the lower end arc portion 82a and the upper end arc portion 82c of the second rotary shaft sub cam groove 82A along the reference line LS is L5, and the lower end circle of the second rotation range restricting sub cam groove 82A is formed. The length of the arc portion 82b and the upper end arc portion 82d along the reference line LS is L6, the height of the upper end arc portion 82c with respect to the reference line LS is h4, and the height of the upper end arc portion 82d with respect to the reference line LS. As h5, the difference between the upper end arc portion 82d and the upper end arc portion 82c is h6 (h6 = h5 - h4).

If e6=1.888 mm, L4=1.888 mm, L5=1.09 mm, L6=0.73 mm, h4=1.55 mm, h5=1.55 mm, h6=1.11 mm, the first movable guiding link member 14 is opposite to the first The maximum rotation angle α 2 of the sub cam plate 71A is α 2 = about 36 degrees by sin α 2 = h6 / L4 = 0.590.

That is, if the first sub-cam plate 71A is rotated by an angle α1 with respect to the first fixed guide link member 11, the first movable guiding link member 14 is rotated by only the angle α 2 with respect to the first sub-cam plate 71A. At this time, the first movable guiding link member 14 is moved relative to the fixed guiding link member 11 to enlarge the interval.

Therefore, when the second casing 4 is closed with respect to the first casing 3, the first movable guiding link member 14 can be displaced in order to make the curvature of the semicircular arc portion formed by folding the flexible display panel 2 as much as possible. .

Then, the second sub-cam plate 71B is engaged with the first rotation cam cam groove 81A of the first sub-cam portion 81, and the ninth guide pin 55i is engaged with the first rotation cam restricting auxiliary cam groove 81B. Guide pin 55j. The ninth guide pin 55i and the tenth guide pin 55j are press-fitted into the inner diameter hole 51 of the ninth link shaft 50i and the tenth link shaft 50j, and the ninth link shaft 50i and the tenth link shaft 50j are loosely embedded in The through holes 10i, 10j of the second guide link member 12 are fixed. Therefore, the second sub-cam plate 71B is identical to the first sub-cam plate 71A, and is rotatable counterclockwise (opposite direction) with respect to the second fixed guide link member 12 at a predetermined range of rotation angles (0 degrees to α1). .

Further, in the second sub cam portion 82 of the second sub cam plate 71B, the eighth guide pin 55h is engaged with the second rotary shaft sub cam groove 82A, and the second rotation range restricting cam groove 82B is engaged with The seventh guide pin 55g. The seventh guide pin 55g and the eighth guide pin 55h are press-fitted into the inner diameter hole 51 of the seventh link shaft 50g and the eighth link shaft 50h, and the seventh link shaft 50g and the eighth link shaft 50h are loosely embedded in The through holes 10g, 10h of the second movable guiding link member 14.

Therefore, if the second sub-cam plate 71B is rotated from 0 degrees to the counterclockwise direction to α 1, the second movable guiding member 15 is rotated by 0 degrees to α in the counterclockwise direction (opposite direction) with respect to the second sub-cam plate 71B. 2.

The composition of the first main cam plate 71C

The first main cam plate 71C and the second main cam plate 71F are configured in the same configuration. The first main cam plate 71C will be described with reference to FIG. 12, and the same reference numerals will be given to the same elements, and the description of the second main cam plate 71F will be omitted.

In Fig. 12, the first main cam plate 71C is formed by a flat plate having a thickness t formed by a flat plate having a thickness t. Similarly to the sub-cam plate main body 80, the main cam plate main body 90 is a reference line LS from a line along the longitudinal direction of the height h7 from the lower end. The main cam plate body 90 has a first main cam portion 91 on the right side in the longitudinal direction and a second main cam portion 92 on the left side. The first main cam portion 91 and the second main cam portion 92 are formed in line symmetry centering on the center line LO of the center position of the main cam plate body 90 in the longitudinal direction.

The composition of the first main cam portion 91

As shown in FIG. 12, the first main cam portion 91 has a first rotating shaft main cam groove 91A formed as a long hole and a first rotation range restricting main cam groove 91B formed as a long hole. The groove width d11 of the first rotating shaft main cam groove 91A and the groove width d12 of the first rotation range restricting main cam groove 91B are set to be equal to the outer diameter d3 of the shaft portion 56 of the guide pin 55. The first rotating shaft main cam groove 91A and the lower end arc portions 91a and 91b of the lower end side of the first rotation range restricting main cam groove 91B are located on the reference line LS and have a center point distance e7 (e7=e5). .

The sixth guide pin 55f is engaged with the first rotary shaft main cam groove 91A, and the fifth guide pin 55e is engaged with the first rotation range restricting main cam groove 91B. Further, with respect to the second sub cam portion 82 of the first sub cam plate 71A, the fifth guide pin 55e is engaged with the second rotary shaft sub cam groove 82A, and the sixth guide pin 55f is engaged with the second rotation range restriction. The sub cam groove 82B is used. The first rotating shaft main cam groove 91A and the first rotation range restricting main cam groove 91B are formed obliquely upward to the right in FIG.

The sixth guide pin 55f is located in the lower end arc portion 91a of the first rotation shaft main cam groove 91A, and the fifth guide pin 55e is engaged with the lower end arc portion 91b of the first rotation range restriction main cam groove 91B. The angle of rotation is 0 degrees.

The second main cam portion 92 is also configured in the same manner, and the seventh guide pin 55g is engaged with the second rotary shaft main cam groove 92A, and the eighth guide pin 55h is engaged with the second rotation range restricting main cam groove 92B. The fifth guide pin 55e to the eighth guide pin 55h are located on the reference line LS of the main cam plate body 90, respectively, in a state of a rotation angle of 0 degrees, and the first movable guiding link member 14 and the fifth movable guiding link are respectively The elements 15 are on the same plane.

When the main cam plate 91C is focused on the first main cam portion 91, the first rotary shaft cam groove 91A moves from the lower end circular arc portion 91a to the upper end circular arc portion 91c while the sixth guide pin 55f is the fulcrum axis. Rotate clockwise (positive direction of rotation). At this time, the main cam plate 71C is rotated by an angle β with respect to the fifth guide pin 55e from the lower end arc portion 91b of the first rotation range restricting cam groove 91B to the upper end arc portion 91d.

The composition of the second main cam portion 92

The second main cam portion 92 has a second rotating shaft main cam groove 92A and a second rotation range restricting main cam groove 92B. The second rotating shaft main cam groove 92A and the second rotation range restricting main cam groove 92B are centered on the center line LO, and are aligned with the first rotating shaft main cam groove 91A and the first rotation range restricting main cam groove 91A. Formed symmetrically. The seventh guide pin 55g is engaged with the main cam groove 92A in the second rotating shaft, and the eighth guide pin 55h is engaged with the second rotation range restricting main cam groove 92B. The seventh guide pin 55g and the eighth guide pin 55h are press-fitted into the inner diameter holes 51 of the seventh link shaft 50g and the eighth link shaft 50h, and the seventh link shaft 50g and the eighth link shaft 50h are loosely fitted. The seventh through hole 10g and the eighth through hole 10h of the second movable guiding link member 15.

On the other hand, when the second main cam portion 92 is focused on the main cam plate 71C, the seventh guide pin 55g is used as a fulcrum axis, and moves from the lower end arc portion 92a to the upper end arc portion 92c in the counterclockwise direction ( Reverse rotation direction). At this time, the lower end arc portion 92b of the second rotation range restricting main cam groove 92B abuts against the upper end arc portion 92d with respect to the eighth guide pin 55h, and the main cam plate 71C is rotated by the angle β.

For example, the first main cam portion 91 side of the first main cam plate 71C is set to the rotation point side, and the first main cam plate 71C is rotated clockwise by the rotation angle β. Next, when the second movable guiding link element 15 is rotated in the counterclockwise direction, the seventh guiding pin 55g and the eighth guiding pin 55h are respectively used from the second rotating shaft of the second main cam portion 92 by the main cam groove 92A and The lower end arc portions 92a and 92b of the second rotation range restricting main cam groove 92B are in contact with the upper end arc portions 92c and 92d, and are rotated only by the angle β.

Further, when the second sub-cam plate 71B is rotated counterclockwise with respect to the second movable guiding link member 15, the second sub-cam portion 82 is removed from the second sub-cam portion 82 with respect to the seventh guide pin 55g and the eighth guide pin 55h. The second rotating shaft sub cam groove 82A and the lower end circular arc portions 82a and 82b of the second rotation range restricting sub cam groove 82B are in contact with the upper end circular arc portions 82c and 82d, respectively, and the second sub cam plate 71B is rotated only by the angle. α 2

Then, if the second fixed guiding link member 15 is rotated in the counterclockwise direction with respect to the second fixed cam plate 71, the third guiding pins 55c, 55d are first from the first sub cam portion 81 of the first sub cam plate 71A. The rotating shaft sub cam groove 81A and the lower end arc portions 81a and 81b of the first rotation range restricting sub cam groove 81B are in contact with the upper end arc portions 81c and 82d, respectively, and the second fixed guiding link member 15 is only rotated at an angle. α 1.

As described above, if the first main cam plate 71C rotates by an angle β as the second housing 4 moves to the closed position relative to the first housing 3, the first rotary shaft main cam groove 91A is relatively sixth. The guide pin 55f and the seventh guide pin 55g are moved by a predetermined length, and the first main cam plate 71C is positioned at right angles between the first fixed guide link member 11 and the second fixed guide link member 12 which are disposed in parallel.

Therefore, the inner surface side of the first meandering portion 10A is formed by, for example, the upper and lower symmetry by the first movable guiding link member 14 and the second movable guiding link member 15 centering on the center line LO of the first main cam plate 71C. In a slightly semicircular curved shape, the curvature of the curved portion of the first folded portion 10A can be made equal to the curvature of the semicircular arc portion formed by the folded portion of the flexible display panel 2 as much as possible.

Here, the distance between the center point of the lower end arc portion 91a of the first rotating shaft main cam groove 91A and the lower end arc portion 91b of the first rotation range restricting main cam groove 91B is e7, and the first rotating shaft is used. The linear distance between the upper end arc portion 91c of the main cam groove 91A and the center point of the upper end arc portion 91d of the first rotation range restricting main cam groove 91B is L7.

Further, the length of the lower end arc portion 91a and the upper end arc portion 91c of the first rotating shaft main cam groove 91A along the reference line LS is L8, and the lower end arc of the first rotation range restricting main cam groove 91B is set. The length of the upper portion 91b and the upper end arc portion 91d along the reference line LS is L9, the height of the upper end arc portion 91c with respect to the reference line LS is h8, and the height of the upper end arc portion 91d with respect to the reference line LS is set. For h9, the difference between the upper end arc portion 91d and the upper end arc portion 91c is h10 (h10 = h9 - h8).

If e7=1.888 mm, L7=1.888 mm, L8=0.96 mm, L9=0.63 mm, h8=0.38 mm, h9=1.45 mm, h10=1.07 mm, the maximum rotation angle β 1 of the first main cam plate 71C is obtained. By sin β 1=h10/L7=0.567, β 1 = about 34 degrees.

The first fully closed state shown in FIG. 3 is such that the first fixed guiding link element 11 of the first folded portion 10A and the second fixed guiding link element 12 are vertically opposed, for example, with the first movable connection therebetween. The element 14 and the second movable coupling element 15 are inclined by a predetermined angle. Further, the first movable connecting element 14 and the second movable connecting element 15 are respectively moved to expand the interval between the first fixed guiding link element 11 and the second fixed guiding link element 12.

Therefore, the curvature of the curved portion of the first folded portion 10A can be made equal to the curvature of the semicircular arc portion formed by the folded portion of the flexible display panel 2 as much as possible. Moreover, the arc length of the semicircular arc portion formed by the folded portion of the flexible display panel 2 is made equal to the arc length of the curved portion of the first folded portion 10A. Further, when the semi-arc shape folded back from the first folded portion 10A is moved to the fully open state, the first fixed guiding link member 11 of the first folded portion 10A is first movable by the actuation of the first cam driving portion 30A. The interval between the guide link member 14, the second movable guiding link member 15, and the second fixed guiding link member 12 becomes narrow, and the first folded portion 10A becomes flat.

13 is a view showing a state in which the first sub-cam plate 71A is rotated to the angle α 1 with respect to the first fixed guide link member 11, and FIG. 14 is a view showing an action in which the first sub-cam plate 71A is rotated to the angle α 1 , FIG. 15 is a view showing a state in which the first movable guiding link member 14 is rotated to an angle α 2 , and FIG. 15 is a view showing a state in which the first main cam plate 71C is rotated to the angle β with respect to the first movable guiding link member 14 .

The case of folding back the first folded portion 10A is taken as an example. The second housing 4 is erected from the fully open state shown in FIG. 2 to the first fully closed state shown in FIG. 3, and is sequentially aligned from the first movable guiding link member 14 with respect to the first fixed guiding link member 11. The ground is bent. At this time, as shown in FIG. 13, the first sub-cam plate 71A is rotated by α1 in the clockwise direction and is inclined upward. As shown in FIG. 14, as the first sub-cam plate 71A rotates to the angle α1, the first movable guiding link member 14 is rotated to the angle α2 in accordance with the cam locus of the second sub-cam portion 82.

Further, as shown in FIG. 15, when the first movable guiding link member 14 is rotated to the angle α 2, the first main cam portion 91 side is used as the fulcrum side to rotate the first main cam plate 71C in the clockwise direction. The first main cam plate 71C is rotated to an angle β and stands at an angle of 90 degrees with respect to the first fixed guide link member 11 and the second fixed guide link member 12, respectively.

The rotation angle θ of the first main cam plate 71C with respect to the first fixed guide link member 11 is θ = α 1 + α 2+ β 1 . Here, when α 1 ≒ 22°, α 2 ≒ 36°, and β 1 ≒ 34°, θ ≒ 92° ≒ 90°.

The case where the second folded portion 10B is folded back is also the same as the case where the first folded portion 10A is folded back, the second cam drive 30B operates, and the second main cam plate 71F stands at a right angle in the parallel state to the second fixed guide. Between the rod member 12 and the third fixed guiding link member 13, the third movable guiding link member 16 and the fourth movable guiding link member 17 are inclined with respect to each other in the face-to-face direction to form a curved portion.

In the first fully closed state, the distance between the opposing axes of the fourth guide pin 55d of the first fixed guide link member 11 and the ninth guide pin 55i of the second fixed guide link member 12 is set to 10 mm.

The operation of the hinge device 5 will be described with reference to Figs. 13 to 15 . In FIGS. 13 to 15, the illustration of the inner first link plate 41A, the inner second link plate array 41B, the outer first link plate array 42A, and the outer second link plate array 42B is omitted.

In the first fully closed state shown in FIG. 13 to FIG. 15, when an external force F is applied to the inside of the flexible display panel 2 disposed at the first main cam plate 71C standing at 90 degrees, the external force F acts on the fifth guide. Pin 55e to eighth guide pin 55h. Then, the first movable guiding link member 14 and the second movable guiding link member 15 are biased in the rotational direction by an angle β exceeding the rotation limit. However, since the first movable guiding link member 14 and the second movable guiding link member 15 are restricted to the rotation angle β, the first movable guiding link member 14 and the second movable guiding link member 15 maintain the rotation angle β.

Further, the first sub-cam plate 71A is biased by the fifth guide pin 55e and the sixth guide pin 55f in a direction exceeding the rotation angle α1. Similarly, the second sub-cam plate 71B is biased by the seventh guide pin 55g and the eighth guide pin 55h in a direction exceeding the rotation angle α1. However, since the first sub-cam plate 71A and the second sub-cam plate 71B do not rotate beyond the rotation angle α1, the rotation angle α 1 is maintained.

Therefore, the bent portion of the first folded portion 10A formed by the first fixed guiding link member 11, the first movable connecting member 14, and the second movable guiding link member 15 is maintained without being deformed even if an external force F is applied. With. In the second fully closed state shown in FIG. 4, the semicircular arc shape formed by the second folded portion 10B is maintained with respect to the external force.

Further, as shown in FIGS. 11 and 12, the first sub-cam plate 71A, the second sub-cam plate 71B, the first main cam plate 71C, the second main cam plate 71F, the third sub-cam plate 71D, and the fourth pair are provided. Both sides of the lower end portion of the cam plate 71E are formed in an R shape. Therefore, in the first fully closed state and the second fully closed state, the outer peripheral edges of the portions of the first main cam plate 71C overlapping the first sub-cam plate 71A and the second sub-cam plate 71B are formed in an arc shape. It is formed in a semi-arc shape as a whole. Further, the outer peripheral edges of the portions where the both side portions of the second main cam plate 71F overlap with the third sub-cam plate 71D and the fourth sub-cam plate 71E are also formed in an arc shape, and are formed in a semi-arc shape as a whole.

In the first fully closed state of the display device 1 shown in FIG. 3, the upper second casing 4 is closed to the one end portion of the flexible display panel in the longitudinal direction with respect to the lower first casing 3. Show a little bit. This exposed portion can be displayed even in the closed state. Of course, it can also be closed to cover completely.

In the second fully closed state of the display device 1 shown in FIG. 4, the second casing 4 is disposed on the side of the hinge device 5 in the longitudinal direction by about 1/3 of the total length, for example, in the longitudinal direction of the hinge device 5. . Therefore, even if the second casing 4 is not opened, the flexible display panel 2 exposed on the first casing 3 can be used as a large display surface.

The display device 1 can display a keyboard or the like on the side of the first casing 3, can input characters as a touch panel, and can be used as a terminal device such as a smart phone, a tablet computer, or a personal computer.

In the above embodiment, the hinge device 5 has the first fully closed state and the second fully closed state. However, only one of them may be fully closed. Further, it may have a third fully closed state.

Claims (7)

 A hinge device is configured to openably connect the first casing and the second casing from a fully open state to a fully closed state, wherein: a guiding link portion is provided with one or a plurality of folded portions continuously, the folding back The first fixed guiding link element, the first movable guiding link element, the second movable guiding link element and the second fixed guiding link element are arranged side by side in sequence; and a cam mechanism is provided The first fixed guiding link member, the first movable guiding link member, and the second movable guiding link member disposed along a direction in which the guiding link member is disposed on both sides of the guiding link portion And each of the intervals of the second fixed guiding link element is telescopically coupled, and the operation of moving from the fully open state to the fully closed state increases the interval between the adjacent guiding link elements, and the first a boundary between the movable guiding link member and the second movable guiding link member, wherein the first movable guiding link member and the second movable guiding link member are symmetrically and mutually Rotating a predetermined rotation angle in the opposite direction, wherein the fully open position is formed by the first fixed guiding link member, the first movable guiding link member, the second movable guiding link member, and the second fixed guiding link member The plane is a flat surface, and the fully closed position is such that the first fixed guiding link element and the second fixed guiding link element are opposed to each other with a predetermined interval.    The hinge device of claim 1, wherein the cam mechanism has a first sub-cam plate that cam-couples the first fixed guiding link member and the first movable guiding link member. And the first movable guiding link member is connected with respect to the first fixed guiding side with respect to the rotating action of rotating the first fixed guiding link member from the lower limit rotation angle forming the flat surface to the first rotation angle The rod element is expanded in interval and rotated from a lower limit rotation angle forming the flat surface to a second rotation angle; and a second sub-cam plate is provided with the second fixed guide link member and the second movable guide link member The cam is coupled to the second fixed guide link member from a lower limit rotation angle forming the flat surface to a rotation operation opposite to a rotation direction of the first rotation angle to the first rotation angle, thereby causing the rotation The second movable guiding link member is spaced apart from the second fixed guiding link member a lower limit rotation angle of the flat surface is rotated to a second rotation angle in a direction opposite to a rotation direction of the second rotation angle; and a main cam plate is attached to the first movable guide link member and the first portion at both end portions The second movable guiding link member is coupled to the cam, and the rotation of the first movable guiding link member and the second movable guiding link member to the second rotation angle is respectively performed from the lower limit rotation angle of the flat surface Rotating in a face-to-face direction to a third rotation angle; and setting an angle of the first rotation angle, the second rotation angle, and the third rotation angle to 90 degrees.    The hinge device of claim 1, wherein the cam mechanism has a first sub-cam plate that cam-couples the first fixed guiding link member and the first movable guiding link member. And the first movable guiding link member is connected with respect to the first fixed guiding side with respect to the rotating action of rotating the first fixed guiding link member from the lower limit rotation angle forming the flat surface to the first rotation angle The rod element is expanded in interval and rotated from a lower limit rotation angle forming the flat surface to a second rotation angle; and a second sub-cam plate is provided with the second fixed guide link member and the second movable guide link member The cam is coupled to the second fixed guide link member from a lower limit rotation angle forming the flat surface to a rotation operation opposite to a rotation direction of the first rotation angle to the first rotation angle, thereby causing the rotation The second movable guiding link member is spaced apart from the second fixed guiding link member a lower limit rotation angle of the flat surface is rotated to a second rotation angle in a direction opposite to a rotation direction of the second rotation angle; and a main cam plate is attached to the first movable guide link member and the first portion at both end portions The second movable guiding link member is coupled to the cam, and the rotation of the first movable guiding link member and the second movable guiding link member to the second rotation angle is respectively performed from the lower limit rotation angle of the flat surface Rotating to face-to-face directions to a third rotation angle, and disposing the first sub-cam plate and the second sub-cam plate in front of and behind the thickness direction of the main cam plate, and the first sub-cam plate and the aforementioned The second sub-cam plate is disposed on both sides of the main cam plate along the guiding link element, and is further unitized; and the angles of the first rotation angle, the second rotation angle, and the third rotation angle are And set to 90 degrees.    The hinge device according to claim 2, wherein the first fixed guiding link member and the second fixed guiding link member are bilaterally symmetrical along the guiding link member, and have respectively a rotator shaft that forms a rotation fulcrum and a rotation transmission shaft that transmits a rotation force, wherein the first movable guiding link member and the second movable guiding link member are bilaterally symmetrical along a direction in which the guiding link member is disposed. And each of the first sub-cam plate has a first sub-cam portion and a second sub-cam portion formed at the both ends of the first sub-cam plate, wherein the first sub-cam plate has a support shaft that forms a rotation fulcrum and a rotation transmission shaft that transmits a rotation force; a cam groove is formed with a cam groove that engages a support shaft and a rotation transmission shaft of the first fixed guide link element, and a cam groove is formed in the second sub cam portion, and the cam groove is respectively engaged with the cam groove a support shaft and a rotation transmission shaft of the first movable guiding link member; and a first sub cam portion and a second sub cam portion formed on the second sub-cam plate at both end portions a cam groove is formed in the sub cam portion, and a support shaft and a rotation transmission shaft of the second fixed guide link element are respectively engaged with the cam portion, and a cam groove is formed in the second sub cam portion, and the first portion is engaged with the cam groove a support shaft and a rotation transmission shaft of the movable guide link member; a first main cam portion and a second main cam portion are formed on both end portions of the main cam plate, and a cam groove is formed in the first main cam portion; The shank and the rotation transmission shaft of the first movable guiding link member are respectively engaged with the cam groove, and the second main cam portion is formed with a cam groove respectively engaged with the second movable guiding link member The shaft and rotation convey the shaft.    The hinge device according to claim 4, wherein the main cam plate rotates the respective rotation transmission axes of the first guide link member and the second guide link member.    A display device, comprising: a hinge device according to any one of claims 1 to 5; a first housing assembled to the guide link portion The guiding link member is provided with a fixed guiding link member disposed at one side of the opposite ends; a second housing is assembled to the guiding link member of the guiding link portion and disposed on the other side of the direction a fixed guide link member; and a flexible display panel that is flexible and assembled to the first housing and the second housing.    A display device, comprising: a hinge device according to any one of claims 1 to 5; a first housing assembled to the guide link portion The guiding link member is provided with a fixed guiding link member disposed at one side of the opposite ends; a second housing is assembled to the guiding link member of the guiding link portion and disposed on the other side of the direction And a flexible display panel that is flexible and assembled to the first housing and the second housing, the guiding link portion having a first folded portion and a second folded portion In a first fully closed state in which the first folded portion is folded back, the first casing and the second casing face oppositely, and are in a second fully closed state in which the second folded portion is folded back, and the second The housing is opposite to the first housing, and a part of the flexible display panel is exposed on the first housing.