CN110784573B

CN110784573B - Display device

Info

Publication number: CN110784573B
Application number: CN201911056330.1A
Authority: CN
Inventors: 宛方; 陈江
Original assignee: Wuhan Tianma Microelectronics Co Ltd
Current assignee: Wuhan Tianma Microelectronics Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2021-02-05
Anticipated expiration: 2039-10-31
Also published as: CN110784573A

Abstract

The embodiment of the invention discloses a display device, which comprises: the display screen comprises a base, a shell, a display screen, at least one buckle structure and at least one extension mechanism; the display device comprises a first working state and a second working state; in a first working state, the second display part is accommodated in the accommodating unit, the extension mechanism is in a contraction state, and the shell is fixed on the base; in the second operating condition, the second display part is in the state of expanding, and extension mechanism is in the state of expanding, casing and base phase separation to realize improving large-size screen display device portability and user experience's effect.

Description

Display device

Technical Field

The embodiment of the invention relates to a display technology, in particular to a display device.

Background

With the technological progress and innovation, display devices have been broken through and succeeded, and have increasingly entered into the living environment of people, becoming a necessity for people to work and entertain. Meanwhile, higher demands are also put on the display device, for example, it is desirable to have a large screen and a large field of view.

At present, in order to meet the requirements of people for a large screen and a large visual field, a mobile phone manufacturer generally makes a display screen of a mobile phone very large, such as 5 inches or more. But the larger the display screen, the larger the size of the handset. Such a large size may significantly reduce the portability of the mobile phone during practical use, which may result in poor user experience.

Disclosure of Invention

The invention provides a display device, which aims to achieve the effects of improving the portability and the user experience of a large-screen display device.

An embodiment of the present invention provides a display device, including: the display screen comprises a base, a shell, a display screen, at least one buckle structure and at least one extension mechanism;

the display screen is a flexible display screen and comprises a first display part and at least one second display part; the first display part is fixed on the shell; the second display part comprises a first end and a second end which are opposite, and the first end of the second display part is connected with the first display part;

the extension mechanisms correspond to the second display parts one by one; the extension mechanism comprises a fixed end and a telescopic end, and the telescopic end is provided with a storage unit; the fixed end is connected with the shell, the telescopic end is connected with the second end of the second display part, and the extension mechanism can perform telescopic motion;

the base is provided with a buckle structure, and the shell is detachably fixed on the base through the buckle structure;

the display device comprises a first working state and a second working state;

in the first working state, the second display part is accommodated in the accommodating unit, the extension mechanism is in a contraction state, and the shell is fixed on the base;

in the second working state, the second display part is in an unfolded state, the spreading mechanism is in an unfolded state, and the shell is separated from the base.

In the embodiment of the invention, the extension mechanisms are arranged to correspond to the second display parts one by one; the extension mechanism comprises a fixed end and a telescopic end, and the telescopic end is provided with a storage unit; the fixed end is connected with the shell, the telescopic end is connected with the second end of the second display part, and the extension mechanism can perform telescopic motion; the base is provided with a buckle structure, and the shell is detachably fixed on the base through the buckle structure; the display device comprises a first working state and a second working state; in the first working state, the second display part is accommodated in the accommodating unit, the extension mechanism is in a contraction state, and the shell is fixed on the base; the second operating condition, the second display part is in the state of expanding, extension mechanism is in the state of expanding, the casing with the base phase separation has solved current big screen display device portability poor, and user experience is poor problem, has realized improving big screen display device portability and user experience's effect.

Drawings

Fig. 1 is a schematic structural diagram of a display device in a first operating state according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second operating state of a display device according to an embodiment of the present invention;

fig. 3 is a schematic partial structural view of a display device in an open state according to an embodiment of the present invention;

fig. 4 is a schematic partial structure diagram of a display device in a fastening state according to an embodiment of the present invention;

fig. 5 is a partial schematic structural view of another display device snap structure in a snap-fit state according to an embodiment of the present invention;

fig. 6 is a partial schematic structural view of a fastening structure of another display device according to an embodiment of the present invention in an open state;

fig. 7 is a schematic structural view of a second display portion in a storage unit according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an extending mechanism in a display device according to an embodiment of the present invention;

FIG. 9 is a schematic structural view of a slide structure in the spreader mechanism provided in FIG. 8;

fig. 10 is a schematic structural diagram of an extending mechanism in another display device according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Fig. 1 is a schematic structural diagram of a first operating state of a display device according to an embodiment of the present invention. Fig. 2 is a schematic structural diagram of a second operating state of a display device according to an embodiment of the present invention. Referring to fig. 1 and 2, the display device includes: the device comprises a base 1, a shell 2, a display screen 3, at least one buckle structure 4 and at least one extension mechanism 5; the display screen 3 is a flexible display screen and comprises a first display part 31 and at least one second display part 32; the first display portion 31 is fixed to the housing 2; the second display part 32 includes a first end and a second end opposite to each other, and the first end of the second display part 32 is connected to the first display part 31; the extension mechanisms 5 correspond to the second display parts 32 one to one; the extension mechanism 5 comprises a fixed end and a telescopic end, and the telescopic end is provided with a storage unit 6; the fixed end is connected with the shell 2, the telescopic end is connected with the second end of the second display part 32, and the extension mechanism 5 can perform telescopic motion; the base 1 is provided with a buckle structure 4, and the shell 2 is detachably fixed on the base 1 through the buckle structure 4; the display device comprises a first working state and a second working state; in the first operating state, the second display portion 32 is housed in the housing unit 6, the extension mechanism 5 is in the retracted state, and the housing 2 is fixed to the base 1; in the second operating state, the second display unit 32 is in the expanded state, the spreader mechanism 5 is in the expanded state, and the housing 2 is separated from the base 1.

As can be seen from a comparison between fig. 1 and 2, when the display device is in the first operating state, since the second display portion 32 is accommodated in the accommodating unit 6, and the extending mechanism 5 is in the retracted state, the entire size of the display screen 3 is small along the first direction 100, the size of the extending mechanism 5 is small, and the display device is highly portable. And because casing 2 is fixed in on base 1, casing 2 becomes an organic whole with base 1 is fixed promptly, and difficult separation is difficult for appearing losing the bad condition of display screen 3 alone in the use, and the security is good. In addition, at this time, since the first display portion 31 is not shrunk, the first display portion 31 can still perform image display, and the requirement of the user for temporarily viewing information, such as viewing time, short messages, and the like, can be met.

When the display device is in the second working state, because the second display part 32 is in the unfolding state, the extension mechanism 5 is also in the unfolding state, and the extension mechanism 5 can play a role in supporting the second display part 32, so that the shaking probability and amplitude of the second display part 32 are reduced. At this time, since the second display portion 32 is expanded, the second display portion 32 and the first display portion 31 can simultaneously display images, so that the requirement of a user on a large screen and a large viewing angle can be met, and the user can play games, watch movies, process documents and the like conveniently by using the display device. And because casing 2 and base 1 phase separation now can satisfy the demand that the user held this display screen in many postures of multi-angle.

Therefore, the display device provided by the technical scheme can meet the requirements of people on pursuing a large screen and a large visual field and the requirement on portability at the same time, and improves the user experience.

Optionally, the display device in the above technical solution is a wearable electronic device. It can be embodied as a watch, shoe, glasses, helmet, headband, garment, schoolbag, crutch, or accessory, etc.

For example, when the display device is a watch, the base 1 may specifically be a watch band of the watch, the first operating state may specifically be a state of operating in the form of a watch, and the second operating state may specifically be a state of operating in the form of a mobile phone.

Optionally, with continued reference to fig. 1 and 2, the flexible display screen comprises one first display portion 31 and two second display portions 32; the two second display portions 32 are connected to opposite sides of the first display portion 31, respectively. Assuming that the extended size of each second display portion 32 is the same, compared with the scheme of only providing one second display portion 32, such an arrangement can increase the size of the display screen along the first direction 100 in the second operation state, and further realize large-screen display. Further, as will be appreciated by those skilled in the art, the greater the size of the extendable mechanism 5 that can be extended, the less stable the extendable end will be in its fully extended state and the more prone it will be to wobble. Assuming that there are two display devices, a display device a and a display device b, respectively, the display device a includes only one second display section 32, and the display device b includes two second display sections 32. In the first operating state the dimension of the display screen of the display device a in the first direction 100 is equal to the dimension of the display device b in the first direction 100, and in the second operating state the dimension of the display screen of the display device a in the first direction 100 is equal to the dimension of the display device b in the first direction 100. Obviously, compared with the display device a, the size of the single extending mechanism 5 in the display device b, which needs to be extended and retracted, is small, and in the second working state, the stability of the extensible end of the extending mechanism 5 in the display device b is good. Therefore, the technical scheme can improve the overall stability of the display screen in the second working state and improve the user experience.

On the basis of the above technical solution, optionally, the snap structure 4 and the extending mechanism 5 are associated, so that during the process of changing the display device from the first working state to the second working state, the unfolding process of the extending mechanism 5 triggers the snap structure 4 to separate the housing 2 from the base 1. Considering the situation that the buckle structure 4 and the extending mechanism 5 are not related, in the process of changing the display device from the first working state to the second working state, two steps are required to realize the switching of the working states, namely, the extending mechanism 5 is extended, so that the second display part 32 is extended; and step two, opening the buckle structure 4 to separate the shell 2 from the base 1. The buckle structure 4 is arranged to be associated with the extending mechanism 5, and in the process of changing the first working state of the display device into the second working state, the switching of the working states can be realized only by one step (namely, the extending mechanism 5 is extended, so that the second display part 32 is extended therewith), the switching steps of the working states can be reduced, and the user experience is further improved.

In the above technical scheme, the arrangement scheme of the buckle structure has multiple types, and the application does not limit the arrangement scheme. The following exemplarily shows a specific structure of a snap structure.

Fig. 3 is a partial schematic structural view of a display device in an open state according to an embodiment of the present invention. Fig. 4 is a partial schematic structural view of a display device snap structure in a snap-fit state according to an embodiment of the present invention. With continued reference to fig. 3 and 4, optionally, the snap structure 4 comprises a first elastic member 41 and a blocking member 42; the base 1 comprises a housing fixing area; the first elastic element 41 is arranged in the shell fixing area of the base 1; the relative position of the blocking member 42 and the housing fixing area is adjustable; when the housing 2 is fixed to the housing fixing area, one end of the first elastic member 41 abuts against the surface of the housing fixing area, and the other end abuts against the housing 2; the blocking member 42 is used for cooperating with the first elastic member 41 to limit the housing 2 within the housing fixing area.

Referring to fig. 3, when the buckle structure 4 is in the buckling state, one end of the first elastic member 41 abuts against the surface of the housing fixing area, and the other end abuts against the housing 2, at this time, the first elastic member 41 is in the compression state, and due to the blocking effect of the blocking member 42 on the housing 2, the housing 2 is fixed and cannot move along the second direction 200 relative to the base 1, so that the housing 2 can be locked on the base 1, the housing 2 and the base 1 are fixed into a whole, and the display screen is not easy to separate and convenient to carry, and the display screen is not easy to lose in the using process.

Referring to fig. 4, when the latch structure 4 is in the open state, the vertical projection of the blocking member 42 on the base 1 is not coincident with the vertical projection of the housing 2 on the base 1, the first elastic member 41 is in the freely extended state, and the first elastic member 41 can "lift" the housing 2 in the second direction 200 (the second direction 200 is perpendicular to the display surface of the first display portion 31), so that the housing 2 is ejected.

Set up like this, when buckle structure 4 is in the lock state, can lock casing 2 on base 1, difficult separation, the in-process that uses is difficult for appearing the bad condition appearance that loses the display screen alone. When buckle structure 4 is in the open mode, can be popped out casing 2 automatically, the user of being convenient for takes, can improve user experience.

It should be noted that, in the above technical solution, when the "buckle structure 4 is in the buckled state, the blocking member 42 cooperates with the first elastic member 41 to limit the housing 2 in the housing fixing area", and a part limited between the blocking member 42 and the first elastic member 41 may be specifically the whole housing, or a part of the housing (such as a rear cover of the housing), or another part fixedly connected with the housing (such as a specific structure in the extension mechanism).

There are various ways for triggering the release of the snap structure 4 from the housing 2, for example, the blocking member 42 can be pulled by hand to release the snap structure 4 from the housing 2.

Optionally, the buckle structure may further include a movable member; the movable member is connected to both the base 1 and the blocking member 42 and is displaceable relative to the housing fixing area to adjust the relative position of the blocking member 42 and the housing fixing area to fix or release the housing 2. Like this, when buckle structure 4 is required to release casing 2, only need adjust the relative displacement that the movable piece takes place with the casing fixed area, and then drive to block piece 42 and the casing fixed area takes place relative displacement, finally makes the vertical projection of blocking piece 42 on base 1 and the vertical projection of casing 2 on base 1 not coincide, and then release casing 2. The advantages of such an arrangement are the following: firstly, in actual manufacturing, in order to make the display device have higher portability, the snap structure 4 needs to be made small enough and fine enough, if the blocking sheet 42 is pulled by hand, the size difference between the finger and the blocking sheet 42 is large, and the snap structure 4 is easily damaged. Adopt the mode of movable part, utilize machinery to replace the finger in fact, because can be in step with the movable part preparation enough little, enough meticulous, can reduce the probability that buckle structure 4 damaged. Secondly, the use of the movable piece helps to realize the association between the buckle structure 4 and the spreading mechanism 5. How to achieve the "association of the catch structure 4 and the spreader mechanism 5" will be described in detail later.

Fig. 5 is a partial schematic structural view of another display device snap structure in a snap-fit state according to an embodiment of the present invention. Fig. 6 is a partial schematic structural view of a display device according to an embodiment of the present invention, wherein the display device is in an open state. With continued reference to fig. 5 and 6, in the display device, a base 1 is provided with a limiting groove 11, and a housing fixing area 12 is located in the limiting groove 11; the movable member 43 further includes a second elastic member 431 and a connecting rod 432; the connecting rod 432 is positioned in the limiting groove 11 and at the periphery of the shell fixing area 12; one end of the connecting rod 432 is connected with the bottom surface of the limiting groove 11, and the other end is connected with the blocking piece 42; one end of the second elastic member 431 abuts against the side wall of the connecting rod 432, and the other end abuts against the side wall of the limiting groove 11.

Referring to fig. 5, when the buckle structure 4 is in the buckling state, the second elastic member 431 is in the compressed state, and the second elastic member 431 applies a force to the connecting rod 432 from the sidewall of the limiting groove 11 to the housing fixing area 12, under the force, the second elastic member 431 abuts against the housing 2, and the blocking member 42 cooperates with the first elastic member 41 to lock the housing 2 on the base 1, and the housing 2 and the base 1 are fixed as a whole, at this time, the housing 2 cannot move relative to the base 1 in the first direction 100 and the second direction 200.

Comparing fig. 5 and 6, when an external force directed from the housing fixing area 12 to the sidewall of the groove 11 is applied to the blocking member 42 (for example, an external force directed from the housing fixing area 12 to the sidewall of the groove 11 is applied to the blocking member 42 by the slider 512 in fig. 5 and 6), under the action of the external force, the blocking member 42 moves to a direction close to the sidewall of the limiting groove 11, at this time, the second elastic member 431 is further compressed until, as shown in fig. 6, the vertical projection of the blocking member 42 on the base 1 is not coincident with the vertical projection of the housing 2 on the base 1, at this time, the housing 2 is lifted and ejected under the elastic force of the first elastic member 41. The relative position of the blocking member 42 and the base 1 can be adjusted by the connecting rod 432, and the connecting rod 432 can be made small enough and fine enough, so that the probability of damage to the buckle structure 4 can be reduced. In addition, since the second elastic member 431 may make the connection rod 432 have a reset function, the movement of the connection rod 432 may be intelligentized.

In addition to the above-described embodiments, the storage means 6 may store the second display unit 32 in a plurality of ways, which is not limited in the present application. Fig. 7 is a schematic structural view of a second display portion in a storage unit according to an embodiment of the present invention. Referring to fig. 7, alternatively, the storage unit 6 provides only one storage chamber, and in the first operating state, the second display part 32 is folded in a folded paper shape with alternating valley lines a and mountain lines b, wherein all valley lines and all mountain lines are parallel to each other.

With continued reference to fig. 1 and 2, optionally, a winding assembly may be disposed within the receiving unit 6 of the spreading mechanism 5; the winding assembly comprises a winding shaft 61; the second end of the second display unit 32 is connected to the winding shaft 61. In the first operating state, the second display portion 32 is wound around the winding shaft 61. As can be understood by those skilled in the art, if the second display portion 32 is folded into a folded paper shape, the connection traces in the second display portion 32 for implementing functions of image display, touch position detection, or user identity recognition are easily damaged or even broken during the folding process, so that the second display portion 32 cannot be used normally. A winding assembly is arranged in the containing unit 6 provided with the extension mechanism 5; the winding assembly comprises a winding shaft 61; the second end of the second display part 32 is connected with the winding shaft 61, so that the damage probability of the connection wiring for realizing the functions of image display, touch position detection and user identity identification in the second display part 32 can be reduced, and the manufacturing yield of the display device is improved.

In the above technical solution, there are various specific setting modes of the extension mechanism, and the application does not limit this. Exemplarily, fig. 8 is a schematic structural diagram of an extending mechanism in a display device according to an embodiment of the present invention. Fig. 9 is a schematic structural view of a slide structure in the spreading mechanism provided in fig. 8. Referring to fig. 1, 2, 8 and 9, alternatively, in the display device, the housing 2 includes a first surface 21 and a second surface 22 opposite to each other, and the display screen 3 is fixed on the first surface 21; the spreader mechanism 5 includes at least one slide structure 51 (in the exemplary map 8, since two second displays 32 are provided, two spreader mechanisms 5 are provided in total, and each of the two spreader mechanisms 5 includes only one slide structure 51). The slideway structure 51 comprises a sliding rail 511, a sliding block 512 and a supporting connecting rod 513; the slide rails 511 are fixed to the second surface 22 of the housing 2; the sliding block 512 is embedded in the sliding rail 511 and can slide along the sliding rail 511, one end of the supporting connecting rod 513 is connected with the sliding block 512, and the other end is connected with the containing unit 6; the support link 513 supports the second display part 32 when the spreader mechanism is in the spread state. The extension mechanism 5 has a telescopic motion function by the arrangement, and the switching of two working states of the display device can be realized by matching with a display screen. And the arrangement is simple and easy to realize.

Fig. 10 is a schematic structural diagram of an extending mechanism in another display device according to an embodiment of the present invention. In this display device, the display panel 3 includes two second display portions 32, a second display portion 32a and a second display portion 32b, respectively. In the display device, two extending mechanisms 5 are provided, and the two extending mechanisms 5 are an extending mechanism 5a and an extending mechanism 5b, respectively. The extending mechanism 5a is used for providing a supporting function for the second display part 32a, and the extending mechanism 5b is used for providing a supporting function for the second display part 32 b. The spreading mechanism 5a and the spreading mechanism 5b each include two slide structures. In same extension mechanism 5, the slide structure is more, and it is better to the supporting effect of second display part 32, sets up like this and is favorable to reducing under second operating condition, and the probability and the range of rocking of second display part 32 improve user experience.

With continued reference to fig. 9, optionally, the ramp structure 51 further includes at least one set of stops 514 (exemplary fig. 9 includes two stop assemblies 514); one limiting member set 514 includes at least two limiting members 5140 (for example, in fig. 9, one limiting member set 514 includes two limiting members 5140); the limiting members 5140 in the same limiting member group 514 are dispersed on the cross section of the sliding rail 511 perpendicular to the extending direction thereof; the limiting member 5140 is fixed on the sliding rail 511 for limiting the movable range of the slider 512. The limiting member 5140 is used for limiting the movable range of the limiting slider 512, so that the display device can be stably kept in the first working state or the second working state, the working state is prevented from being changed due to shaking, shaking and other reasons which are not desired by a user in the using process, and the user experience is improved.

In the above technical solutions, there are various specific setting schemes of the limiting member, and the application does not limit this. The following schematically shows a schematic structural diagram of a stopper.

Referring to fig. 9, optionally, the limiting member 5140 includes a third elastic member 5140b and an elastic membrane 5140 a; the elastic film 5140a is strip-shaped, and two ends thereof are fixed on the inner side of the sliding rail 511; the third elastic element 5140b is located between the slide rail 511 and the elastic membrane 5140a, and one end of the third elastic element abuts against the slide rail 511, and the other end abuts against the elastic membrane 5140 a. Therefore, when the slider 512 slides in the sliding rail 511 under the action of an external force, when the slider 512 approaches the limiting member 5140, the pressing force of the slider 512 on the elastic membrane 5140a is very large, so that the third elastic member 5140b is compressed, and at this time, the channel where the limiting member 5140 is disposed on the sliding rail 511 is wider than the minimum size through which the slider 512 can pass, so as to allow the slider 512 to pass. When no slider 512 passes through the position where the limiting member 5140 is disposed, the third elastic member 5140b rebounds to a certain extent, and the passage where the limiting member 5140 is disposed on the sliding rail 511 is narrower and smaller than the minimum size that the slider 512 can pass through. When the slider 512 is not under the action of external force, the pressing force of the slider 512 on the elastic membrane 5140a is very small, and the third elastic member 5140b cannot be compressed to be small enough, and a channel which is wide enough to allow the slider 512 to pass through cannot be formed at the position where the limiting member 5140 is disposed on the sliding rail 511, thereby achieving the limiting effect. The automatic limiting or releasing can be realized according to the stress condition of the sliding block 512, the structure is simple, the realization is easy, and the cost is low.

With continued reference to fig. 9, optionally, the ramp structure 51 includes two sets of stops 514, a first set of stops 514a and a second set of stops 514 b; the first stop group 514a is located at the end of the sliding rail 511 away from the receiving unit 6 belonging to the same extension mechanism to keep the extension mechanism in the contracted state; the second stop group 514b is located at the end of the slide rail 511 close to the receiving unit 6 belonging to the same spreader to keep the spreader in the spread state. The display device can be further kept in the first working state or the second working state stably by the aid of the arrangement, working states are prevented from being changed due to reasons such as shaking and shaking which are not desired by a user in the using process, and user experience is improved.

Alternatively, with continued reference to fig. 5, 6 and 10, when the housing 2 is fixed to the fixed area of the housing 2, the blocking member 52 extends from the end of the slide rail 511 close to the receiving unit 6 belonging to the same spreading mechanism 5 into the sliding path of the slide block 512 in the slide rail 511, and abuts against the slide rail 511. The essence of this is to associate the catch arrangement 4 with the spreader mechanism 5. Specifically, in the first operating state, since the blocking member 52 extends from the end of the slide rail 511 close to the storage unit 6 belonging to the same extension mechanism 5 to the sliding path of the slide block 512 in the slide rail 511 and abuts against the slide rail 511, at this time, the slide rail 511 is fixed on the base 1, and since the slide rail 511 is fixedly connected with the housing 2, the housing 2 and the base 1 are finally fixed as a whole. In the process of changing from the first working state to the second working state, the slider 512 slides along the sliding rail 511 under the action of external force, and in the process of sliding, the slider 512 presses the blocking piece 52, so that the vertical projection of the blocking piece 52 on the base 1 is not overlapped with the vertical projection of the sliding rail 511 on the base 1, and the shell 2 is released. The setting only needs one step (namely, the extension mechanism 5 is unfolded, so that the second display part 32 is unfolded therewith) to realize the switching of the working state, the step of switching the working state can be reduced, the user experience is further improved, and the setting is simple in structure and easy to realize. The display device is improved in a pure mechanical structure, does not need electric drive, can save the electric loss of the display device, and prolongs the standby time of the display device.

Optionally, in the process that the second display portion 32 is adjusted from the fully retracted state to the fully extended state, the moving distance of the slider relative to the slide rail is a first distance; in the process of adjusting from the fully contracted state of the second display part 32 to the blocking member releasing housing 2, the moving distance of the slider is a second distance; the first distance is greater than or equal to the second distance. What is essential in this arrangement is that the release of the housing by the snap structure precedes the full deployment of the second display part 32, or the release of the housing by the snap structure is synchronized with the full deployment of the second display part 32, in the process of changing from the first operating state to the second operating state. The setting can further ensure the step of reducing the switching of the working state, and further improve the user experience.

Optionally, in each of the above technical solutions, the first elastic member, the second elastic member, and the third elastic member may be specifically a member having a stretching performance, such as a spring, foam, or the like. This is not limited by the present application.

It is considered that if the CPU is disposed on the base 1, the CPU is connected to the display screen 3 through the Flexible Printed Circuit (FPC). When the display device is in the second working state, because the length of the flexible printed circuit board FPC is present, the distance between the display screen and the central processing unit CPU must be smaller than the length of the flexible printed circuit board FPC, which undoubtedly limits the movable range of the display screen.

With continued reference to fig. 10, optionally, the display device further includes a central processing unit CPU and a flexible circuit board FPC; one end of the flexible circuit board FPC is connected with the first display part 31, and the other end is connected with the central processing unit CPU; the CPU and the FPC are contained in the shell 2. The essence of the arrangement is that the central processing unit CPU, the flexible circuit board FPC and the display screen 3 are fixed into a whole and are inseparable. Therefore, when the display device is in the second working state, the display screen 3 can be completely separated from the base 1, the limitation of the length of the FPC (flexible printed circuit) of the flexible circuit board is completely eliminated, and the user experience is improved.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display device, comprising: the display screen comprises a base, a shell, a display screen, at least one buckle structure and at least one extension mechanism;

the display device comprises a first working state and a second working state;

in the second working state, the second display part is in an unfolded state, the spreading mechanism is in an unfolded state, and the shell is separated from the base;

the buckling structure and the extension mechanism are associated, so that the buckling structure is triggered by the extension mechanism during the process that the display device is changed from the first working state to the second working state, and the shell is separated from the base.

2. The display device according to claim 1,

the flexible display screen comprises a first display part and two second display parts;

the two second display parts are respectively connected to two opposite sides of the first display part.

3. The display device according to claim 1,

the buckle structure comprises a first elastic piece and a blocking piece;

the base comprises a housing fixation area; the first elastic piece is arranged in the shell fixing area of the base;

the relative position of the blocking piece and the shell fixing area is adjustable;

when the shell is fixed on the shell fixing area, one end of the first elastic part is propped against the surface of the shell fixing area, and the other end of the first elastic part is propped against the shell; the blocking piece is used for being matched with the first elastic piece so as to limit the shell in the shell fixing area.

4. The display device of claim 3, wherein the snap structure further comprises a movable member;

the movable piece is connected with the base and the blocking piece and can move relative to the shell fixing area so as to adjust the relative position of the blocking piece and the shell fixing area and fix or release the shell.

5. The display device according to claim 4,

a limiting groove is formed in the base, and the shell fixing area is located in the limiting groove;

the movable piece further comprises a second elastic piece and a connecting rod;

the connecting rod is positioned in the limiting groove and at the periphery of the shell fixing area; one end of the connecting rod is connected with the bottom surface of the limiting groove, and the other end of the connecting rod is connected with the blocking piece; one end of the second elastic piece is abutted against the side wall of the connecting rod, and the other end of the second elastic piece is abutted against the side wall of the limiting groove.

6. The display device according to claim 5,

a winding assembly is arranged in the containing unit of the extension mechanism; the winding assembly comprises a winding shaft;

the second end of the second display unit is connected to the winding shaft.

7. The display device according to claim 5,

the shell comprises a first surface and a second surface which are opposite, and the display screen is fixed on the first surface;

the extension mechanism comprises at least one slideway structure;

the slide way structure comprises a slide rail, a slide block and a support connecting rod;

the sliding rail is fixed on the second surface of the shell;

the sliding block is embedded into the sliding rail and can slide along the sliding rail, one end of the supporting connecting rod is connected with the sliding block, and the other end of the supporting connecting rod is connected with the containing unit;

when the spreading mechanism is in the unfolded state, the support link supports the second display portion.

8. The display device according to claim 7,

the slideway structure also comprises at least one limiting piece group; one limiting piece group at least comprises two limiting pieces; the limiting parts in the same limiting part group are dispersed on the section of the slide rail, which is perpendicular to the extending direction of the slide rail;

the limiting piece is fixed on the sliding rail and used for limiting the movable range of the sliding block.

9. The display device according to claim 8, wherein the stopper includes a third elastic member and an elastic film;

the elastic membrane is strip-shaped, and two ends of the elastic membrane are fixed on the inner side of the sliding rail;

the third elastic piece is positioned between the slide rail and the elastic membrane, one end of the third elastic piece is abutted against the slide rail, and the other end of the third elastic piece is abutted against the elastic membrane.

10. The display device according to claim 7,

the slideway structure comprises two limiting piece groups, namely a first limiting piece group and a second limiting piece group;

the first limiting piece group is positioned at the end part of the slide rail, which is far away from the containing unit belonging to the same extension mechanism, so as to keep the extension mechanism in a contracted state;

the second limiting piece group is positioned at the end part of the slide rail close to the containing unit belonging to the same extension mechanism so as to keep the extension mechanism in an unfolded state.

11. The display device according to claim 7,

when the shell is fixed on the shell fixing area, the blocking piece extends into the sliding path of the sliding block in the sliding rail from the end part of the sliding rail close to the containing unit belonging to the same extension mechanism and is abutted against the sliding rail.

12. The display device according to claim 11,

in the process that the second display part is adjusted from a fully contracted state to a fully expanded state, the moving distance of the sliding block relative to the sliding rail is a first distance;

when the second display part is adjusted from the completely contracted state to the process that the blocking part releases the shell, the moving distance of the sliding block is a second distance;

the first distance is greater than or equal to the second distance.

13. The display device according to claim 1, further comprising a central processing unit and a flexible wiring board;

one end of the flexible circuit board is connected with the first display part, and the other end of the flexible circuit board is connected with the central processing unit;

the central processing unit and the flexible circuit board are contained in the shell.

14. The display device of claim 1, wherein the display device is a wearable electronic device.