CN115294874B

CN115294874B - Slide roll display device

Info

Publication number: CN115294874B
Application number: CN202211038958.0A
Authority: CN
Inventors: 陈思彤
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2023-12-05
Anticipated expiration: 2042-08-29
Also published as: CN115294874A

Abstract

The embodiment of the invention discloses a slide roll display device. In a specific embodiment, the slide-roll display device comprises a fixed shell, a movable shell, a driving component and a flexible display screen, wherein at least part of the flexible display screen covers the fixed shell and the movable shell, the driving component is used for driving the movable shell to move towards a direction far away from or close to the fixed shell, the driving component is fixedly connected with the fixed shell, and at least part of the fixed connection is in elastic connection. The embodiment can reduce forced vibration caused by a driving part comprising a motor on the fixed shell when the movable shell is driven to move, thereby reducing resonance and noise of the whole machine and improving user experience.

Description

Slide roll display device

Technical Field

The invention relates to the technical field of display. And more particularly, to a slide scroll display device.

Background

Currently, as OLED (Organic Light Emission Diode) display technology is developed in recent years, products and researches related to new forms of flexible display are getting more and more attention. The flexible display screen has the characteristics of being bendable, curled and the like, and the display device can be curled or folded by utilizing the characteristics, so that convenience is brought to people for carrying and using the display device. The design of the slide coil shape combining folding and curling is more dominant in appearance and practicality.

The slide roll is another innovative application field of the flexible display panel, and the form realizes that a consumer can randomly switch the display area of the flexible display panel according to own needs, so that the slide roll is convenient for the user to carry about, provides the user with use experience better than that of a folding display panel, and is an important direction for developing the flexible display panel.

In the existing slide-roll display device, a driving component for driving a flexible display screen to roll and unwind is necessary, a common driving component is driven by a motor, for example, the inventor finds that in the driving process of the driving component comprising the motor, a fixed shell fixedly connected with the driving component by a bolt for example generates forced vibration, so that resonance and noise of the whole machine occur, and user experience is affected.

Disclosure of Invention

The present invention is directed to a slider display device that solves at least one of the problems of the prior art.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the invention provides a slide roll display device which comprises a fixed shell, a movable shell, a driving part and a flexible display screen, wherein at least part of the flexible display screen covers the fixed shell and the movable shell, the driving part is used for driving the movable shell to move towards a direction far away from or close to the fixed shell, the driving part is fixedly connected with the fixed shell, and at least part of the fixed connection is elastically connected.

According to the slide roll display device provided by the invention, forced vibration caused by a driving part comprising a motor to a fixed shell when the movable shell is driven to move can be reduced through elastic connection, so that resonance and noise of the whole machine are reduced, and user experience is improved.

Alternatively, the elastic connection is an elastic connection formed by a damping material coated connection or an elastic connection formed by an elastic connection.

Optionally, the connecting piece includes a first connecting portion formed by the protrusion of the fixed housing, a second connecting portion formed by the protrusion of the driving part, and a screw, the first connecting portion includes a groove forming a thread, the second connecting portion includes a through hole, at least one of a side wall of the screw, a top surface of the screw, a bottom surface of the groove, a side wall of the groove, and a side wall of the through hole is coated with a damping material, and the elastic connection is achieved by the screw passing through the threaded fit of the through hole and the groove.

Optionally, the connecting piece includes a first connecting portion formed by the protrusion of the fixed housing, a second connecting portion formed by the protrusion of the driving part, and a positioning column, the first connecting portion includes a groove, the second connecting portion includes a through hole, at least one of a sidewall of the positioning column, a top surface of the positioning column, a bottom surface of the groove, a sidewall of the groove, and a sidewall of the through hole is coated with a damping material, and the elastic connection is realized by the positioning column passing through the through hole and having a top surface inserted into the groove.

Optionally, the positioning column is in interference fit with the groove, or the positioning column is fixed through a detachable shell detachably connected with the fixed shell.

Optionally, under the condition that the positioning column is fixed through a detachable shell detachably connected with the fixed shell, foam is arranged on the bottom surface of the positioning column.

Optionally, the damping material is a compound formed by one or more of polysulfide, butyronitrile, silicone rubber, polyvinyl chloride and epoxy resin.

Optionally, the connecting piece includes a first connecting portion formed by the protrusion of the fixed housing, a second connecting portion formed by the protrusion of the driving part, and a spring, the first connecting portion includes a groove, the second connecting portion includes a through hole, and the elastic connection is realized by the spring penetrating through the through hole and having a top surface inserted into the groove.

Optionally, the spring is fixed by a detachable housing detachably connected to the fixed housing.

Optionally, foam is arranged on the bottom surface of the spring.

The beneficial effects of the invention are as follows:

according to the technical scheme, forced vibration caused by a driving component comprising a motor to the fixed shell when the movable shell is driven to move can be reduced through elastic connection, so that resonance and noise of the whole machine are reduced, and user experience is improved.

Drawings

The following describes the embodiments of the present invention in further detail with reference to the drawings.

Fig. 1 is a schematic diagram showing a rolled and unrolled state of a slide roll display device according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a driving mechanism of a slide roll display device according to an embodiment of the present invention.

Fig. 3 shows a graph of vibration displacement amplitude of forced vibration of a fixed housing in a slide scroll display device according to an embodiment of the present invention.

Fig. 4 shows a schematic view of a first embodiment of the elastic connection of the drive mechanism to the stationary housing.

Fig. 5 shows a schematic view of a second embodiment of the elastic connection of the drive mechanism to the stationary housing.

Fig. 6 shows a schematic view of a third implementation of the elastic connection of the drive mechanism to the stationary housing.

Detailed Description

In order to more clearly illustrate the present invention, the present invention will be further described with reference to examples and drawings. Like parts in the drawings are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this invention is not limited to the details given herein.

As shown in fig. 1 and 2, an embodiment of the present invention provides a roll display device including a fixed housing 101, a movable housing 102, a driving part for driving the movable housing 102 to move in a direction away from or toward the fixed housing 101 to achieve unwinding or winding of the flexible display 103, and a flexible display 103, at least a portion of the flexible display 103 covering the fixed housing 101 and the movable housing 102. For example, the fixed end of the flexible display screen 103 is connected to the fixed housing 101, the other end bypasses the rotating shaft on the movable housing 102, and when the driving part drives the movable housing 102 to move away from the fixed housing 101 in the rolled state of the slide-roll display device shown as 1-a in fig. 1, the flexible display screen 103 can be unfolded to enlarge the display area; when the movable housing 102 is driven to move in a direction approaching the fixed housing 101 in a state where the driving part is extended by the slide roller display device shown in 1-b of fig. 1, the flexible display 103 can be rolled up to reduce the display area.

Wherein, the driving part is fixedly connected with the fixed shell 101, and at least part of the fixed connection is elastic connection.

In one specific example, the circuit structure of the roll display device may include a main board, a battery, a motor driving module, a position sensing module, a switching module, and the like, which are not shown in the drawings. As shown in fig. 2, the driving part includes a motor 104, a reduction gearbox 105, a screw 106 and a guide rod 107, the motor 104 and the reduction gearbox 105 are fixed on a first support 108, the first support 108 is fixedly connected to a fixed housing 101 through a first fixed connection portion 191 and a second fixed connection portion 192, a second support 109 is fixedly connected to the first support 108, the second support 109 is fixedly connected to the fixed housing 101 through a third fixed connection portion 193, the screw 106 is respectively rotatably connected to the first support 108 and the second support 109, and the guide rod 107 is respectively fixedly connected to the first support 108 and the second support 109 and is parallel to the screw 106. The sliding block 110 is fixedly connected to the push rod 1021 of the movable shell 102, the sliding block 110 is provided with a first through hole and a second through hole with threads on the side wall, the first through hole is sleeved with the guide rod 107, the second through hole is sleeved with the screw rod 106, when alternating current driving current is output to the motor 104, the motor 104 drives the screw rod 106 to rotate through the reduction gearbox 105, the sliding block 110 can move along the axial direction of the screw rod 106, and the movable shell 102 is driven to move towards a direction far away from or close to the fixed shell 101.

As shown in fig. 2, there are three fixed connections between the driving member and the fixed housing 101, which correspond to the first fixed connection portion 191, the second fixed connection portion 192, and the third fixed connection portion 193, respectively, wherein at least some of the fixed connections are elastic connections, that is, at least one of the first fixed connection portion 191, the second fixed connection portion 192, and the third fixed connection portion 193 is an elastic connection portion. For example, the first fixing link 191 is an elastic link, and the second fixing link 192 and the third fixing link 193 are conventional bolt fixing links; for another example, the first fixing connection portion 191 is an elastic connection portion and the third fixing connection portion 193 is an elastic connection portion, and the second fixing connection portion 192 is a conventional bolt fixing connection portion; for another example, the first, second and third fixing connection parts 191, 192 and 193 are elastic connection parts.

Since the motor 104 is driven by ac, a vibration force of a fixed frequency is applied to the outside through the motor 104 during the movement, and the vibration force is transmitted to the stationary housing 101, thereby forcing the stationary housing 101 to vibrate. In this embodiment, since at least part of the fixed connection between the driving component and the fixed housing 101 is elastically connected, a damping state can be formed, and the waveform of the vibration force applied by the motor 104 to the outside is affected by the damping, so that the peak weakening state occurs in the vibration displacement of the forced vibration of the fixed housing 101 over time, as shown in fig. 3, for example, the forced vibration of the fixed housing 101 caused by the driving component including the motor 104 when the movable housing 102 is driven to move can be reduced, thereby reducing the resonance and noise of the whole rolling display device and improving the user experience. It will be appreciated that the fixed connection of the driving member and the fixed housing is all elastic, i.e. in the above example, the first, second and third fixed connection portions 191, 192 and 193 are all elastic connections, which has a more remarkable effect on reducing forced vibration of the fixed housing 101 caused by the driving member including the motor 104 when driving the movable housing 102 to move.

In one possible implementation, the elastic connection is an elastic connection formed by a connection piece coated with damping material or an elastic connection formed by an elastic connection piece.

Further, in one possible implementation manner, this embodiment provides three implementation manners in which the driving mechanism including the motor 104 is elastically connected to the fixed housing 101, and the first fixed connection 191 is taken as an example, respectively, as follows.

As shown in fig. 4, a first implementation of the elastic connection of the driving mechanism including the motor 104 and the fixed housing 101 is, for example:

the connector (i.e., the first fixed connection portion 191) includes a first connection portion 1911 formed by protruding the fixing housing 101 (specifically, the bottom surface of the fixing housing 101), a second connection portion 1912 formed by protruding the driving member (specifically, the first support 108 of the driving member), and a screw 1913, the first connection portion 1911 includes a threaded hole (i.e., the upper surface of the first connection portion 1911 in fig. 4 is formed with a threaded hole), the second connection portion 1912 is opened with a through hole, at least one of a side wall of the screw 1913, a bottom surface of a head of the screw 1913 (i.e., a lower surface of the head of the screw 1913 in fig. 4 contacting the second connection portion 1912), a bottom surface of the threaded hole of the first connection portion 1911, a side wall of the threaded hole of the first connection portion 1911, and a side wall of the through hole of the second connection portion 1912 is coated with a damping material, i.e., the first fixed connection portion 191 is an elastic connection portion, and the threaded hole 1913 is formed by threaded engagement of the through hole of the second connection portion 1912 with the threaded hole of the threaded hole 1911. Thereby, the elastic connection can be achieved by the first connection part 1911, the second connection part 1912, the screw 1913 coated with the damping material, for example, the elastic connection of the driving mechanism including the motor 104 and the fixed housing 101 can be achieved by coating the damping material on the thread surface (side wall) of the screw 1913, thereby reducing the forced vibration caused to the fixed housing 101 by the driving member including the motor 104, for example, when driving the movable housing 102 to move.

In one possible implementation, the damping material in the first implementation, for example, in which the driving mechanism including the motor 104 is elastically coupled to the fixed housing 101, is a compound formed of one or more of polysulfide, nitrile, silicone rubber, polyvinyl chloride, and epoxy.

In one example, the damping material is provided on the bottom surface of the head of the screw 1913, that is, the contact surface of the head of the screw with the top surface of the second connection portion 1912, to attenuate the vibration transmitted from the motor 104 to the fixed housing 101.

In fig. 4, the second fixing connection portion 192 has the same structure as the first fixing connection portion 191.

As shown in fig. 5, a second implementation of the elastic connection of the driving mechanism, including the motor 104, to the stationary housing 101 is:

the connector (i.e., the first fixing connection portion 191) includes a first connection portion 1911 ' formed by protruding the fixing housing 101 (specifically, a bottom surface of the fixing housing 101), a second connection portion 1912 ' formed by protruding the driving component (specifically, a side surface of the first support 108 of the driving component), and a positioning column 1914, the first connection portion 1911 ' includes a groove (i.e., a groove is formed on an upper surface of the first connection portion 1911 ' in fig. 5), the second connection portion 1912 ' includes a through hole, at least one of an outer circumferential surface of the positioning column 1914, an end surface of the positioning column 1914 (i.e., a lower surface of the positioning column 1914 in fig. 5), a bottom surface of the groove of the first connection portion 1911 ', a side wall of the groove of the first connection portion 1911 ', and a side wall of the through hole of the second connection portion 1912 ' is coated with a damping material, the elastic connection is implemented by the positioning column 1914 inserted into the groove of the first connection portion 1911 ' through the through hole of the second connection portion 1912 ', and the first fixing connection portion 191 is implemented by inserting the top surface of the first connection portion 1914 ' through the groove 1914. Thus, the elastic connection can be achieved by the first connection portion 1911 'and the second connection portion 1912' coated with the damping material, and the positioning column 1914, and for example, the elastic connection of the driving mechanism including the motor 104 and the fixed housing 101 can be achieved by coating the damping material on the outer peripheral surface of the positioning column 1914, so that, for example, the forced vibration of the fixed housing 101 caused by the driving member including the motor 104 when the movable housing 102 is driven to move can be reduced.

In one possible implementation, the damping material in the second implementation, for example, in which the driving mechanism including the motor 104 is elastically coupled to the fixed housing 101, is a compound formed of one or more of polysulfide, nitrile, silicone rubber, polyvinyl chloride, and epoxy.

In one possible implementation, there are two ways of securing the positioning post 1914:

(1) The positioning post 1914 is interference fit with the groove of the first connecting portion 1911' to fix the driving mechanism including the motor 104 and the fixing housing 101 by the positioning post 1914.

(2) The positioning column 1914 is fixed by a detachable housing detachably connected to the fixed housing 101 to achieve fixation of a driving mechanism including, for example, the motor 104 with the fixed housing 101 by the positioning column 1914.

That is, for example, as shown in fig. 2 and 5, the fixing housing 101 is a lower housing including a bottom surface and a side wall, the bottom surface of the fixing housing 101 is formed with a first connection portion 1911 ' protruding, and after the positioning column 1914 is inserted into the groove of the first connection portion 1911 ' through the through hole of the second connection portion 1912 ', the bottom surface of the positioning column 1914 (i.e., the upper surface of the positioning column 1914 in fig. 5) is supported downward by the protruding portion that is the bottom surface of the detachable housing of the upper housing, thereby realizing the fixing of the positioning column 1914.

Further, foam 1915 is disposed on the bottom surface of the positioning column 1914. In this way, when the detachable housing is used to fix the positioning column 1914 by, for example, pressing the protruding portion of the bottom surface against the bottom surface of the positioning column 1914, the effect of elastic connection is increased, and the resonance and noise of the whole sliding roller display device are further reduced.

In fig. 5, the second fixing connection portion 192 has the same structure as the first fixing connection portion 191.

As shown in fig. 6, a third implementation of the elastic connection of the driving mechanism including the motor 104 and the fixed housing 101 is:

the connector (i.e., the first fixing connection portion 191) includes a first connection portion 1911″ formed by protruding the fixing housing 101 (specifically, a bottom surface of the fixing housing 101), a second connection portion 1912″ formed by protruding the driving member (specifically, a side surface of the first support 108 of the driving member), and a spring 1916, the first connection portion 1911″ includes a groove (i.e., a groove is formed on an upper surface of the first connection portion 1911″ in fig. 6), the second connection portion 1912″ includes a through hole, and the elastic connection is implemented by a spring 1916 passing through the through hole of the second connection portion 1912″ and having a top surface inserted into the groove of the first connection portion 1911″, and the top surface of the spring 1916 is a lower surface of the spring 1916 in fig. 6. Thereby, an elastic connection can be formed by the elastic connection member spring 1916, and the elastic connection of the driving mechanism including the motor 104 and the fixed housing 101 is realized by the spring 1916, thereby reducing forced vibration caused to the fixed housing 101 by the driving member including the motor 104 when the movable housing 102 is driven to move.

In one possible implementation, the spring 1916 is secured by a detachable housing that is detachably connected to the stationary housing 101 to enable a drive mechanism, including, for example, the motor 104, to be secured to the stationary housing 101 by the spring 1916.

That is, for example, as shown in fig. 2 and 6, the fixing housing 101 is a lower housing including a bottom surface and a side wall, the bottom surface of the fixing housing 101 is formed with a first connection portion 1911″ protruding, and after the spring 1916 is inserted into a groove of the first connection portion 1911″ through a through hole of the second connection portion 1912″, the bottom surface of the spring 1916 (i.e., the upper surface of the spring 1916 in fig. 5) is supported downward by a protruding portion that is the bottom surface of the detachable housing of the upper housing, thereby realizing the fixing of the spring 1916.

In one possible implementation, the bottom surface of the spring 1916 is provided with foam 1917. In this way, in the case that the detachable housing is used to fix the spring 1916 by, for example, pressing the protruding portion of the bottom surface against the bottom surface of the spring 1916, the effect of elastic connection is increased, and the resonance and noise of the whole sliding roller display device are further reduced.

In addition, in a third implementation manner in which the driving mechanism including the motor 104 is elastically connected to the fixed housing 101, for example, a two-stage spring may be used, for example, an upper groove and a lower groove are formed on the upper and lower surfaces of the second connection portion formed by the protrusion of the driving member (specifically, the side surface of the first support 108 of the driving member), respectively, the top surface of the upper spring (i.e., the lower surface of the upper spring) is inserted into the upper groove of the second connection portion, and the top surface of the lower spring (i.e., the lower surface of the lower spring) and the bottom surface (i.e., the upper surface of the lower spring) are inserted into the lower groove of the second connection portion and the groove of the first connection portion formed by the protrusion of the fixed housing 101 (specifically, the bottom surface of the fixed housing 101) (the groove formed on the upper surface of the first connection portion).

In a third implementation in which the drive mechanism including the motor 104 is elastically coupled to the stationary housing 101, the spring 1916 as a damper may be replaced with a torsion spring or the like.

In fig. 6, the second fixing connection portion 192 has the same structure as the first fixing connection portion 191.

It can be understood that, in the slide roller display device provided in this embodiment, the implementation manner of the elastic connection between the driving mechanism and the fixed housing is not limited to the above three, and other implementation manners may be adopted, so long as the design of the elastic connection between the driving mechanism and the fixed housing is satisfied, the purpose of reducing forced vibration caused to the fixed housing when the driving component including, for example, a motor drives the movable housing to move can be achieved.

The slide roll display device provided by the embodiment of the invention can be any product or component with a display function, such as a mobile phone, a tablet personal computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like, and the embodiment is not limited to the above.

In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

It is further noted that in the description of the present invention, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

It should be understood that the foregoing examples of the present invention are provided merely for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A slide-roll display device, comprising a fixed shell, a movable shell, a driving part and a flexible display screen, wherein at least part of the flexible display screen covers the fixed shell and the movable shell, and the driving part is used for driving the movable shell to move towards a direction far away from or close to the fixed shell;

the connecting piece comprises a first connecting part formed by the protrusion of the fixed shell, a second connecting part formed by the protrusion of the driving part and a screw, wherein the first connecting part comprises a threaded hole for forming threads, the second connecting part is provided with a through hole, at least one of the side wall of the screw, the bottom surface of the head of the screw, the bottom surface of the threaded hole, the side wall of the threaded hole and the side wall of the through hole is coated with damping materials, and the elastic connection is realized by the screw which passes through the through hole and is matched with the threads of the groove;

or, the connecting piece includes the protruding first connecting portion that forms of fixed casing, the protruding second connecting portion and the reference column that forms of drive component, first connecting portion includes the recess, the second connecting portion includes the through-hole, at least one of the outer peripheral face of reference column, the top surface of reference column, the bottom surface of recess, the lateral wall of recess and the lateral wall of through-hole is coated with damping material, elastic connection is realized by passing the through-hole and the reference column that the top surface inserts the recess.

2. The device of claim 1, wherein the positioning post is interference fit with the recess or wherein the positioning post is secured by a removable housing removably coupled to the fixed housing.

3. The device according to claim 2, wherein the bottom surface of the positioning column is provided with foam in the case where the positioning column is fixed by a detachable housing detachably connected to the fixed housing.

4. The device of any one of claims 1, wherein the damping material is a compound formed from one or more of polysulfide, nitrile, silicone rubber, polyvinyl chloride, and epoxy.

5. The device of claim 1, wherein the connection member comprises a first connection portion formed by the protrusion of the fixed housing, a second connection portion formed by the protrusion of the driving member, and a spring, the first connection portion comprising a groove, the second connection portion comprising a through hole, the elastic connection being achieved by the spring passing through the through hole and having a top surface inserted into the groove.

6. The device of claim 5, wherein the spring is secured by a removable housing removably coupled to the fixed housing.

7. The device of claim 6, wherein the bottom surface of the spring is provided with foam.