CN212276301U

CN212276301U - Foldable display device

Info

Publication number: CN212276301U
Application number: CN202020943376.7U
Authority: CN
Inventors: 张卓; 江国宝; 冯子康
Original assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Current assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-01-01
Anticipated expiration: 2030-05-27

Abstract

The utility model provides a foldable display device, which has a notebook mode and a flat mode, the foldable display device comprises a foldable body which enables the foldable display device to be in a folding state, a semi-folding state and a flattening state, a flexible display panel arranged on the foldable body and a keyboard film connected with one end of the foldable body, the flexible display panel comprises a display area, the display area comprises a virtual keyboard area for displaying a virtual keyboard, the keyboard film is provided with a plurality of raised keys which are in one-to-one correspondence with the key positions of the virtual keyboard, the keyboard film is accommodated at one side of the foldable body away from the flexible display panel when not in use, the keyboard film can be turned to one side of the flexible display panel away from the foldable body and is jointed with the virtual keyboard area of the flexible display panel when in use so as to realize the function of simulating the hand feeling of an external physical keyboard, thereby improving the working efficiency of the foldable display device in the notebook mode and the portability of the foldable display device.

Description

Foldable display device

Technical Field

The utility model relates to a show technical field, especially relate to a collapsible display device.

Background

With the development of display technology, the demands of consumers for display devices are more and more diversified and personalized. The foldable display device has the advantages of flexibility, portability and the like, and is favored by consumers.

The existing foldable display device is matched with an external complete physical keyboard to give consideration to the multiple use experience of a mobile phone, a tablet personal computer and a notebook computer, but the connection mode of the external physical keyboard is complicated and is not convenient to carry. Therefore, it is necessary to provide a foldable display device to improve this drawback.

Disclosure of Invention

An embodiment of the utility model provides a collapsible display device for solve the loaded down with trivial details just portable problem of the connected mode of the external physics keyboard that current collapsible display device exists.

An embodiment of the utility model provides a foldable display device has notebook mode and flat mode, foldable display device includes:

a foldable body for holding the foldable display device in a folded state, a semi-folded state, and a flattened state;

a flexible display panel disposed on the foldable body, including a display area including a virtual keyboard area for displaying a virtual keyboard; and

the keyboard film is connected with one end of the foldable machine body, a plurality of raised keys which correspond to the key positions of the virtual keyboard one by one are arranged on the keyboard film, the keyboard film is stored on one side, away from the flexible display panel, of the foldable machine body when not in use, and the keyboard film is turned over to one side, away from the foldable machine body, of the flexible display panel when in use and is attached to the virtual keyboard region to achieve the function of simulating the hand feeling of the real keyboard.

According to the utility model discloses an embodiment, each the button is hollow structure, and each the internal surface of button all is equipped with transparent conductive film, presses down during the button, the button is sunken, transparent conductive film with flexible display panel's surface contact.

According to the utility model discloses an embodiment, the material of keyboard membrane includes transparent elastic rubber or transparent elastic silica gel.

According to the utility model discloses an embodiment, the display area still includes first display area and second display area, the second display area set up in first display area with between the virtual keyboard region, collapsible fuselage include first hinge, second hinge and respectively with first display area the second display area with first fuselage, second fuselage and the third fuselage that the virtual keyboard region corresponds, first fuselage with the second fuselage passes through first hinged joint, the second fuselage with the third fuselage passes through second hinged joint.

According to the utility model discloses an embodiment, the keyboard membrane with the third fuselage is kept away from one side fixed connection or swivelling joint of second fuselage, the third fuselage is kept away from one side of flexible display panel is equipped with one and holds the chamber, the keyboard membrane accomodate when not using in hold the intracavity.

According to the utility model discloses an embodiment, be in during the dull and stereotyped mode, collapsible fuselage is in the exhibition flat state, first display area with the second display area and the virtual keyboard region is in the coplanar to the whole face picture shows.

According to the utility model relates to an embodiment, be in during the notebook mode, collapsible display device is in half folding state, first display area with second display area is in the coplanar, simultaneously passes through the second hinge stands relatively in the plane at third fuselage place carries out the picture and shows, virtual keyboard area display virtual keyboard, the keyboard membrane upset extremely flexible display panel keeps away from one side of collapsible fuselage, and with the regional laminating of virtual keyboard.

According to an embodiment of the present invention, the second display area and the virtual keyboard area form a whole and the first display area is symmetrical with respect to the first hinge the second display area is symmetrical with respect to the virtual keyboard area is symmetrical with respect to the second hinge.

According to an embodiment of the present invention, a support is disposed on a side of the second body away from the flexible display panel, and when the second body is in the notebook mode, the support is opened and abuts against a plane where the third body is located; when the mobile phone is in the flat panel mode, the support is accommodated at one side of the second body, which is far away from the flexible display panel.

According to the utility model discloses an embodiment, the support through the pivot with the second fuselage is close to one side swivelling joint of first fuselage, be equipped with the torsional spring in the pivot, the both sides torque arm of torsional spring is fixed in respectively the support with on the second fuselage is close to one side of third fuselage is equipped with the slip buckle, is used for fixing the support.

The utility model discloses beneficial effect of embodiment: the embodiment of the utility model provides a be connected one side with the keyboard membrane and collapsible fuselage, be equipped with the bellied button with the key position one-to-one of virtual keyboard on the keyboard membrane, the keyboard membrane can be accomodate in one side that flexible display panel was kept away from to collapsible fuselage when not using, do not influence the normal use of collapsible display device under dull and stereotyped mode, the keyboard membrane can overturn when using and keep away from one side of collapsible fuselage to flexible display panel and with the function that the external physical keyboard of simulation was felt with this with the regional laminating of virtual keyboard of flexible display panel, thereby improve the office efficiency of collapsible display device under notebook mode and collapsible display device's portability.

Drawings

In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded schematic view of a foldable display device according to an embodiment of the present invention;

fig. 2 is a schematic front structural view of a foldable display device provided in an embodiment of the present invention in a flattened state;

fig. 3 is a schematic back structure view of the foldable display device provided in the embodiment of the present invention in a flattened state;

fig. 4 is a schematic front structural view of a foldable display device according to an embodiment of the present invention in a folded state;

fig. 5 is a schematic back structural view of the foldable display device according to an embodiment of the present invention in a folded state;

fig. 6 is a schematic front structural view of a foldable display device in a half-folded state according to an embodiment of the present invention;

fig. 7 is a schematic back structure view of a foldable display device in a half-folded state according to an embodiment of the present invention;

fig. 8 is a schematic bottom structure view of a foldable display device according to an embodiment of the present invention in a half-folded state;

FIG. 9 is an enlarged view of portion a of FIG. 8;

fig. 10 is an enlarged schematic view of a portion b of fig. 8.

Detailed Description

The following description of the various embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], refer to the directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.

The invention will be further described with reference to the accompanying drawings and specific embodiments.

An embodiment of the present invention provides a foldable display device, which is described in detail below with reference to fig. 1 to 10.

Referring to fig. 1 to fig. 3, wherein fig. 1 is an exploded schematic view of a foldable display device provided by an embodiment of the present invention, fig. 2 is a front schematic view of the foldable display device provided by an embodiment of the present invention in a flat state, and fig. 3 is a back schematic view of the foldable display device provided by an embodiment of the present invention in a flat state. The embodiment of the utility model provides a collapsible display device is including making collapsible display device be in fold condition, half folding state and the collapsible fuselage 11 of flat state, be used for carrying on the flexible display panel 12 of picture display and be used for simulating the keyboard membrane 13 that external physical keyboard felt.

The flexible display panel 12 may be a flexible organic light emitting diode display panel in the prior art, which can be folded or unfolded simultaneously under the action of the foldable body 11. The flexible display panel 12 includes a display area 121 and a non-display area located around the display area 121, the display area 121 includes a virtual keyboard area 1211 for displaying a virtual keyboard (not shown), and the virtual keyboard area 1211 can perform a full screen display with other display areas when the virtual keyboard is not displayed.

The keyboard membrane 13 is provided with a plurality of projected keys 131 corresponding one-to-one to the key positions of the virtual keyboard, and the virtual keyboard 13 is connected to one end of the foldable body 11 and can be turned over with respect to the foldable body 1. When the keyboard film 13 is used, the keyboard film 13 can be turned to one side of the flexible display panel 12 far away from the foldable machine body 11, and is attached to the virtual keyboard area 1211, and any key 131 is pressed, so that the key 131 can be in contact with the surface of the flexible display panel 12 where the corresponding key position of the virtual keyboard is located, and the pressing of the key position of the virtual keyboard is completed, therefore, the function of an external physical keyboard can be realized through the matching of the keyboard film 131 and the virtual keyboard without an external physical keyboard, the hand feeling of the external physical keyboard can also be simulated, and compared with the case of only using the virtual keyboard, the office efficiency and the use experience of the foldable display device can be improved. When not used, the keyboard film 13 can be accommodated at one side of the foldable body 1 far away from the flexible display panel 12, which does not affect the whole screen display of the flexible display panel 12, and does not affect the bending or unfolding of the foldable body.

Specifically, each of the keys 131 on the keyboard film 13 is of a hollow structure, when any one of the keys 131 is pressed, the protruding portion of the key 131 sinks and contacts with the upper surface of the flexible display panel 12, and when the key 131 is released, the sunk portion of the key 131 pops up and returns to the original shape, so that the hand feeling of simulating an external physical keyboard is realized.

Further, the embodiment of the utility model provides a flexible display panel 12 is the flexible display panel of capacitanc touch-control structure, the internal surface of each button 131 all is equipped with transparent conductive film, when pressing any button 131, be located the metal conductive film of internal surface and flexible display panel 12's upper surface contact, form electric capacity and produce corresponding touch-control signal between the touch-control sensing electrode of metal conductive film and flexible display panel 12 inside, thereby can effectively improve the touch-control sensitivity of keyboard membrane 13, avoid because the thick great and unable and finger formation electric capacity of touch-control sensing electrode of keyboard membrane 13 causes the condition of touch-control inefficacy to take place.

Specifically, in the embodiment of the present invention, the material of the keyboard membrane 13 is transparent thermoplastic polyurethane elastomer (TPU), so as to provide good deformation recovery capability for the keyboard membrane 13, and improve the keyboard hand feeling and the use experience of the keyboard membrane 13. Of course, in some embodiments, the material of the keyboard membrane 13 may also be other transparent elastic rubber materials or transparent elastic silicone materials, which can obtain the same technical effects as the above embodiments, and the specific material may be selected according to actual requirements, which is not limited herein.

Specifically, refer to fig. 1 to fig. 7, wherein fig. 4 is a front structural schematic diagram of the foldable display device provided by the embodiment of the present invention under the folded state, fig. 5 is a back structural schematic diagram of the foldable display device provided by the embodiment of the present invention under the folded state, fig. 6 is a front structural schematic diagram of the foldable display device provided by the embodiment of the present invention under the half-folded state, and fig. 7 is a back structural schematic diagram of the foldable display device provided by the embodiment of the present invention under the half-folded state.

The display area 121 further includes a first display area 1212 and a second display area 1213, the second display area 1213 being disposed between the first display area 1212 and the virtual keyboard area 1211. The foldable body 11 includes a back panel 115, a first hinge 110, a second hinge 111, and a first body 112, a second body 113, and a third body 114 corresponding to the first display area 1212, the second display area 1213, and the virtual keyboard area 1211, respectively. The back panel 115 is disposed on a side of the first body 112 away from the flexible display panel 12, the first body 112 and the second body 113 are rotatably connected by a first hinge 110, the second body 113 and the third body 114 are rotatably connected by a second hinge 111, the foldable display device can be folded or unfolded by the first hinge 110, so that the foldable display device is in a flat state as shown in fig. 2 or a folded state as shown in fig. 4, and the foldable display device can also be folded or unfolded by the second hinge 111, so that the foldable display device is in a half-folded state as shown in fig. 6.

Further, referring to fig. 5, the keyboard film 13 is connected to a side of the third body 114 away from the second body 113, a receiving cavity 1141 is disposed on a side of the third body 114 away from the flexible display panel 12, and the keyboard film 13 can be received in the receiving cavity 1141 when not in use.

In the embodiment of the present invention, the keyboard film 13 and one side of the third body 114 far away from the second body 113 are fixedly connected through the double-sided adhesive tape, and the keyboard film 13 can be turned over relative to one end of the fixed connection. In other embodiments, the keyboard film 13 may also be rotatably connected to a side of the third body 114 away from the second body 113 through a rotating shaft, and the keyboard film 13 may be flipped over through the rotating shaft.

Specifically, the foldable display device has two operation modes, a notebook mode and a tablet mode. When the foldable display device is in the flat panel mode, the foldable display device is in the flat state as shown in fig. 2 and 3, and the first display region 212, the second display region 213, and the virtual keyboard region 211 are in the same plane, and the entire screen is displayed. The first body 112, the second body 113 and the third body 114 are also in the same plane through the first hinge 110 and the second hinge 111, and the keyboard film 13 is accommodated in the accommodating cavity 1141 on the side of the third body 114 far away from the flexible display panel 12, so that the normal use of the foldable display device in the flat panel mode is not affected. Of course, in the tablet mode, if the keyboard film 13 is to be used, the keyboard film 13 may also be turned to the side of the flexible display panel 12 away from the foldable body 11 and attached to the virtual keyboard region 1211, so as to be used together with the virtual keyboard displayed by the virtual keyboard region 1211.

When the foldable display device is in the notebook mode, the foldable display device is in a half-folded state as shown in fig. 6 and 7, the first display area 1212 and the second display area 1213 are in the same plane under the supporting action of the first body 112, the second body 113, and the first hinge 110, and simultaneously stand on the plane of the third body 114 through the second hinge 12 for displaying images, and the virtual keyboard area 1211 displays a virtual keyboard. In the notebook mode, an included angle between the planes of the first body 112, the second body 113 and the third body 114 is between 0 and 180 degrees, and the included angle can be adjusted and fixed through the second hinge 111, so that the foldable display device in the notebook mode can be used at various different opening and closing angles. The keyboard film 13 is turned over to the side of the flexible display panel 12 far away from the foldable body 11 and is attached to the virtual keyboard region 1211, so that the virtual keyboard displayed by the virtual keyboard region 1211 is used in cooperation with the keyboard, and compared with the virtual keyboard, the keyboard film can be used for simulating the hand feeling of an external physical keyboard, and the office efficiency of the foldable display device in the notebook mode can be effectively improved. Of course, in the notebook mode, if the keyboard film 13 is not needed, the keyboard film 13 can be received in the receiving cavity 1141 of the third body 114, and the standing and the use of the foldable display device in the notebook mode are not affected.

Further, the second display area 1213 and the virtual keyboard area 1211 form an integral body symmetrical to the first display area 1212 with respect to the first hinge 110. When the foldable display device is folded by the first hinge 110 to the folded state as shown in fig. 4 and 5, the first display region 1212, the second display region 1213 and the virtual keyboard region 1211 are folded inward and the edge portions are overlapped with each other, and the second body 113, the third body 114 and the first body 112 are located outside the flexible display panel 12 and are also folded inward and the edge portions are overlapped with each other, which is a minimum configuration in which the foldable display device can be folded, thereby facilitating the carrying of the foldable display device.

Further, the second display area 1213 and the virtual keyboard area 1211 are symmetrical with respect to the second hinge 111. When in the notebook mode, the foldable display device is in a half-folded state, the virtual keyboard region 1211 for displaying the virtual keyboard occupies only one fourth of the display region 121 of the flexible display panel 12, and the first display region 1212 and the second display region 1213 for displaying the screen can occupy three fourths of the display region 121.

Further, referring to fig. 6 and 7, a bracket 116 is disposed on a side of the second body 113 away from the flexible display panel 12. In the notebook mode, the bracket 116 is opened, one end of the bracket 116 abuts against the plane of the third body 114, and the other end of the bracket 116 abuts against the back of the second body 113 to support the first body 112 and the second body 113 at a fixed angle and prevent them from falling due to an excessively high center of gravity. One side of the second body 113 far away from the flexible display panel 12 is also provided with an accommodating cavity, and when the second body is in a tablet mode or a folded state, the bracket 116 can be accommodated in the accommodating cavity of the second body 113 without influencing the bending or unfolding of the foldable display device, so that the stability of the foldable display device in a notebook mode can be improved, and the portability of the foldable display device can be improved.

Of course, the bracket 116 is not limited to be disposed on the side of the second body 113 away from the flexible display panel 12, and in some embodiments, the bracket 116 may also be disposed on the side of the first body 112 away from the flexible display panel 12, so as to obtain the same supporting effect as the above embodiments. In other embodiments, the external independent bracket may be used to replace the bracket 116 disposed on the side of the second body away from the flexible display panel, which may also achieve the same supporting effect as the above embodiments, and the specific structure may be set according to actual requirements, which is not limited herein.

Further, referring to fig. 8 to 10, fig. 8 is a schematic bottom structure diagram of the foldable display device in a half-folded state according to an embodiment of the present invention, fig. 9 is an enlarged schematic view of a portion a in fig. 8, and fig. 10 is an enlarged schematic view of a portion b in fig. 8. The two ends of one side of the bracket 116 are provided with shaft holes, the bracket 116 is rotatably connected with one side of the second body 113 close to the first body 112 through a rotating shaft 117, the rotating shaft 117 is provided with a torsion spring 118, and the torsion arms at two sides of the torsion spring 118 are respectively fixed on the bracket 116 and the second body 112.

A sliding buckle 119 is arranged on one side of the second body 113 close to the third body 114, a base of the sliding buckle 119 is fixed on the second body 113 through a bolt, and the sliding buckle is used for fixing and releasing the bracket 116. In the notebook mode, the bracket 116 can pop up under the action of the torsion spring 118 to support the foldable display device by the wave sliding buckle 119; in the tablet mode or in the folded state, the bracket 116 is received in the receiving cavity of the second body 113 on the side away from the flexible display panel 12 and is fixed by the sliding buckle 119 to prevent the bracket 116 from popping out.

In the embodiment of the present invention, the foldable display device further includes a processor, a driver chip, and a power supply module, the processor, the driver chip, and the power supply module can be disposed in the first body 112, the second body 113, or the third body 114, and each of the components located in different bodies can be connected through the flexible printed circuit board, and the flexible display panel 12 is also connected with each of the above components through the flexible printed circuit board.

Has the advantages that: the embodiment of the utility model provides a be connected one side with the keyboard membrane and collapsible fuselage, be equipped with the bellied button with the key position one-to-one of virtual keyboard on the keyboard membrane, the keyboard membrane can be accomodate in one side that flexible display panel was kept away from to collapsible fuselage when not using, do not influence the normal use of collapsible display device under dull and stereotyped mode, the keyboard membrane can overturn when using and keep away from one side of collapsible fuselage to flexible display panel and with the function that the external physical keyboard of simulation was felt with this with the regional laminating of virtual keyboard of flexible display panel, thereby improve the office efficiency of collapsible display device under notebook mode and collapsible display device's portability.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention is defined by the appended claims.

Claims

1. A foldable display device having a notebook mode and a tablet mode, the foldable display device comprising:

the keyboard film is connected with one end of the foldable machine body, a plurality of raised keys which correspond to the key positions of the virtual keyboard one by one are arranged on the keyboard film, the keyboard film is stored in one side, away from the flexible display panel, of the foldable machine body when not in use, and the keyboard film is turned to one side, away from the foldable machine body, of the flexible display panel when in use and is attached to the virtual keyboard region to realize the function of simulating the hand feeling of an external physical keyboard.

2. The foldable display device of claim 1, wherein each of the keys is hollow and has a transparent conductive film on an inner surface thereof, and when the key is pressed, the key is depressed and the transparent conductive film contacts the surface of the flexible display panel.

3. The foldable display device of claim 2, wherein the material of the keypad film comprises transparent elastic rubber or transparent elastic silicone.

4. The foldable display device of claim 1, wherein the display area further comprises a first display area and a second display area, the second display area is disposed between the first display area and the virtual keyboard area, the foldable body comprises a first hinge, a second hinge, and a first body, a second body, and a third body corresponding to the first display area, the second display area, and the virtual keyboard area, respectively, the first body is connected to the second body by the first hinge, and the second body is connected to the third body by the second hinge.

5. The foldable display device of claim 4, wherein the keyboard membrane is fixedly or rotatably connected to a side of the third body away from the second body, a receiving cavity is provided on a side of the third body away from the flexible display panel, and the keyboard membrane is received in the receiving cavity when not in use.

6. The foldable display device of claim 5, wherein in the tablet mode, the foldable body is in a flattened state, and the first display area, the second display area and the virtual keyboard area are in the same plane and perform a full screen display.

7. The foldable display device of claim 6, wherein in the notebook mode, the foldable display device is in the half-folded state, the first display area and the second display area are in the same plane, and simultaneously stand on the plane of the third body relatively through the second hinge and perform image display, the virtual keyboard area displays the virtual keyboard, and the keyboard film is flipped to a side of the flexible display panel away from the foldable body and attached to the virtual keyboard area.

8. The foldable display device of claim 7, wherein the second display area and the virtual keyboard area form an integral with the first display area with respect to the first hinge, and the second display area and the virtual keyboard area are symmetrical with respect to the second hinge.

9. The foldable display device of claim 7, wherein a bracket is disposed on a side of the second body away from the flexible display panel, and in the notebook mode, the bracket is opened and abuts against a plane of the third body; when the mobile phone is in the flat panel mode, the support is accommodated at one side of the second body, which is far away from the flexible display panel.

10. The foldable display device of claim 9, wherein the bracket is rotatably connected to one side of the second body close to the first body through a rotating shaft, a torsion spring is disposed on the rotating shaft, two side torsion arms of the torsion spring are respectively fixed to the bracket and the second body, and a sliding buckle is disposed on one side of the second body close to the third body for fixing the bracket.