CN117789606A

CN117789606A - Flexible display device, control method thereof and electronic equipment

Info

Publication number: CN117789606A
Application number: CN202410108134.9A
Authority: CN
Inventors: 文偲嘉; 梁恒镇; 蒲乾林; 王东; 杨成洪; 杨东; 黄浩; 杨武城; 张�浩; 王吉喆; 李聪聪
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2024-01-25
Filing date: 2024-01-25
Publication date: 2024-03-29

Abstract

The embodiment of the application provides a flexible display device, a control method thereof and electronic equipment. The flexible display device includes: the display device comprises a flexible display panel, a first shaft piece, a second shaft piece, a fixing piece and a shell; the shell is used for forming a containing cavity and an opening on the containing cavity, and the first shaft piece, the second shaft piece and the fixing piece are arranged in the containing cavity; a flexible display panel passing through an opening, comprising: the first end is arranged in the accommodating cavity and fixedly connected with the fixing piece, and the second end is arranged outside the accommodating cavity; a second shaft member, parallel to the first shaft member, configured to be rotatable about the first shaft member and rotatable about its own axis; and the fixing piece is arranged between the track of the second shaft piece rotating around the first shaft piece and the first shaft piece. According to the embodiment of the application, the service life of the flexible display device of the scroll type is prolonged by reducing the concentrated stress of the flexible display panel in the rolling/unrolling process.

Description

Flexible display device, control method thereof and electronic equipment

Technical Field

The embodiment of the application relates to the technical field of display devices, in particular to a flexible display device, a control method thereof and electronic equipment.

Background

The development of display devices is gradually changed, and the functions or structures of the display devices are often finely adjusted according to actual market demands. However, with some functional device or process adjustments, new problems tend to occur. For example, the related art proposes a display screen that can be bent or curled to compromise portability of an electronic device and a large screen interaction experience. The screen which can be curled is also called a scroll screen, portability of the electronic equipment is realized through rolling of the flexible display panel, and large-screen display of the electronic equipment is realized through unfolding of the flexible display panel. However, in the practical use of electronic devices employing scroll-type display screens, each time the screen structure is subjected to bending and movement deformation by being unwound/rolled, the screen structure is subjected to a complicated dynamic load for a long period of time, so that the service life of the display device is difficult to be ensured.

It should be noted that the information for distinguishing the invention in the above background art is only for enhancing the understanding of the background of the invention and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The embodiment of the application provides a flexible display device, a control method thereof and electronic equipment, and aims to improve the structural stability of the flexible display device of a scroll type and prolong the service life of the flexible display device of the scroll type.

In one aspect, embodiments of the present application provide a flexible display device, including: the display device comprises a flexible display panel, a first shaft piece, a second shaft piece, a fixing piece and a shell;

the shell is used for forming a containing cavity and an opening on the containing cavity, and the first shaft piece and the second shaft piece are arranged in the containing cavity;

the flexible display panel passes through the opening, comprising: the first end is arranged in the accommodating cavity and fixedly connected with the fixing piece, and the second end is arranged outside the accommodating cavity;

the second shaft piece is parallel to the first shaft piece, is configured to be rotatable around the first shaft piece and is rotatable around the axis of the second shaft piece;

the fixing piece is arranged between the track of the second shaft piece rotating around the first shaft piece and the first shaft piece.

Optionally, the first shaft member is configured to be rotatable about its own axis.

Optionally, the method further comprises: a control module connected with the second shaft piece and configured to drive the second shaft piece to rotate around the first shaft piece in a first time needle direction and/or rotate in a second time needle direction;

Wherein the first hour hand direction is opposite to the second hour hand direction.

Optionally, the control module includes: a first drive module and a first link;

the first driving module is connected with the second shaft piece through the first connecting rod; the first connecting rod is coaxial with the first shaft member at the end connected with the first driving module, and the second shaft member is coaxial with the first connecting rod at the end connected with the second shaft member.

Optionally, the method further comprises: the first limiting piece and the second limiting piece are positioned in the accommodating cavity; the center of the first limiting piece is opposite to the axis of the first shaft piece, and the second limiting piece is connected between the first shaft piece and the second shaft piece;

the first limiting piece is configured to fix the position of the first shaft piece;

the second limiting piece is configured to fix a track of rotation of the second shaft piece around the first shaft piece.

Optionally, the method further comprises: the first limiting piece and the guide rail are positioned in the accommodating cavity; the center of the first limiting piece is opposite to the axis of the first shaft piece, and the guide rail is overlapped with the track of the second shaft piece rotating around the first shaft piece;

the guide rail is configured to fix a trajectory of rotation of the second shaft member about the first shaft member.

The flexible display device provided by the embodiment of the application has the following advantages:

(1) The flexible display device that this embodiment provided, with flexible display panel fixed connection on the mounting of holding intracavity, and the mounting sets up the second shaft spare centers on first shaft spare rotatory orbit with between the first shaft spare, control second shaft spare centers on first shaft spare rotary motion, can drive flexible display panel and realize crimping or expansion, and then can effectively reduce flexible display panel's crimping or expansion's bending degree to this reduces flexible display panel's stress that receives, thereby reduces flexible display panel's damage and destruction under the cyclic loading effect.

(2) The flexible display panel only increases the pulling stress applied to the first end suddenly in the fully unfolded state, but in the actual product end use situation, the reel type flexible display device is usually switched between the maximum rolling state and the half-frame state, so that the pulling stress applied to the first end is not increased greatly. Therefore, the practical use factors of the flexible display device of the scroll type are fully considered, the structural stability of the flexible display device is further improved, and the service life of the flexible display device is prolonged.

(3) The flexible display panel can be rolled or unrolled under the condition that the second shaft member only rotates around the first shaft member, so that the use of a control module can be saved, and the manufacturing cost of the flexible display device can be reduced.

In still another aspect, an embodiment of the present application further provides a control method of a flexible display device, which is applied to the flexible display device in any one of the foregoing embodiments, including:

the second shaft member is controlled to rotate around the first shaft member in a first time needle direction so as to enable the flexible display panel to be rolled, or the second shaft member is controlled to rotate around the first shaft member in a second time needle direction so as to enable the flexible display panel to be unfolded.

The control method of the flexible display device provided by the embodiment of the application has the following advantages:

(1) The flexible display device controlled by the control method has all the advantages of the flexible display device in any one of the embodiments described above.

(2) The control method can realize the rolling or unfolding of the flexible display panel by means of the switching of the rotation direction of the second shaft member under the condition that the second shaft member only rotates around the first shaft member.

In still another aspect, embodiments of the present application further provide a flexible display device, including: the flexible display panel, the first shaft piece, the second shaft piece and the shell;

the shell is used for forming a containing cavity and an opening on the containing cavity, and the first shaft piece, the second shaft piece and the fixing piece are arranged in the containing cavity;

the flexible display panel passes through the opening, comprising: the first end is arranged in the accommodating cavity and fixedly connected with the second shaft piece, and the second end is arranged outside the accommodating cavity;

the second shaft member is parallel to the first shaft member, is configured to be rotatable about the first shaft member, and is rotatable about its own axis.

Optionally, the method further comprises: a control module; is connected with the second shaft piece and is configured to drive the second shaft piece to rotate around the first shaft piece in a first time needle direction and/or rotate in a second time needle direction, and drive the second shaft piece to rotate around the axle center of the second shaft piece in the first time needle direction and/or rotate in the second time needle direction;

Optionally, the control module includes: the first driving module and the first connecting rod, the second driving module and the second connecting rod;

the first driving module is connected with the second shaft piece through the first connecting rod; the end, connected with the first driving module, of the first connecting rod is coaxial with the first shaft piece, and the end, connected with the second shaft piece, of the first connecting rod is coaxial with the second shaft piece;

the second driving module is connected with the second shaft piece through the second connecting rod; wherein the second link is coaxial with the second shaft member.

(1) According to the flexible display device, the flexible display panel is fixedly connected to the second shaft member, the second shaft member is controlled to rotate around the first shaft member and/or the shaft center of the second shaft member, the flexible display panel can be driven to realize rolling or unfolding, and then the bending degree of rolling or unfolding of the flexible display panel can be effectively reduced, so that the stress of the flexible display panel is reduced, and damage of the flexible display panel under the action of cyclic load are reduced.

(3) The second shaft member can rotate around the first shaft member and/or the shaft center of the second shaft member, so that the flexible display panel can be rolled or unrolled cooperatively, the rolling or unrolling control accuracy of the flexible display panel is further improved, the number of turns of the flexible display panel around the second shaft member is kept in a state that the flexible display panel is not fully unrolled, and stress pulling caused to the first end is reduced.

Controlling the second shaft member to rotate around the first shaft member in a first time needle direction to enable the flexible display panel to be curled or controlling the second shaft member to rotate around the first shaft member in a second time needle direction to enable the flexible display panel to be unfolded when the unfolding proportion of the flexible display panel is larger than a first proportion threshold value and smaller than a second proportion threshold value;

and under the condition that the unfolding proportion of the flexible display panel is smaller than the first proportion threshold, controlling the second shaft member to rotate around the axis of the second shaft member along the first time needle direction so as to enable the flexible display panel to be curled, or controlling the second shaft member to rotate around the axis of the second shaft member along the second time needle direction so as to enable the flexible display panel to be unfolded.

(2) According to the control method, the second shaft piece can rotate around the axis of the first shaft piece and/or the second shaft piece, the sequence, the direction and the like of rotation can be flexibly adjusted according to the current unfolding proportion of the flexible display panel, so that the rolling or unfolding of the flexible display panel is controlled, and the stress pulling caused to the first end is further reduced.

In yet another aspect, an embodiment of the present application further provides an electronic device, including: two flexible display devices as in any one of the embodiments above;

wherein the two flexible display devices share a flexible display panel.

The electronic device provided by the embodiment of the application, including the flexible display device in any one of the embodiments, also has all the advantages of the flexible display device.

Drawings

The drawings are for reference and illustration purposes only and are not intended to limit the scope of the present application. The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Fig. 1 shows an external schematic view of a flexible display device in the related art.

Fig. 2 shows an internal wrap-up schematic view of a flexible display device in the related art.

Fig. 3 illustrates a rolled-up schematic view of a flexible display device in a rolled-up state in one embodiment provided herein.

Fig. 4 is a schematic winding view illustrating an unfolded state of a flexible display device according to an embodiment of the present application.

Fig. 5 is a schematic diagram of a control module of a flexible display device according to an embodiment of the disclosure.

Fig. 6 is a schematic cross-sectional view of a limiting member according to an embodiment of the present application.

Fig. 7 is a schematic cross-sectional view of a stopper according to still another embodiment of the present application.

Fig. 8 shows a schematic winding diagram of a first state of a flexible display device according to still another embodiment provided herein.

Fig. 9 shows a schematic winding diagram of a second state of a flexible display device in yet another embodiment provided herein.

Fig. 10 shows a schematic winding diagram of a third state of a flexible display device in yet another embodiment provided herein.

Fig. 11 is a schematic diagram of a control module of a flexible display device according to another embodiment of the disclosure.

Fig. 12 shows an external schematic view of an electronic device in one embodiment provided herein.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

Fig. 1 shows an external schematic view of a flexible display device in the related art. As shown in fig. 1, the present scroll type display screen generally includes a housing 15 and a rollable flexible display panel 14.

Fig. 2 shows an internal wrap-up schematic view of a flexible display device in the related art. As shown in fig. 2, the current scroll type display screen generally adopts a single axis device, and the flexible display panel 14 is rolled up and unrolled by rotation of the first shaft member 11 built in the housing 15. Based on this configuration, the flexible display panel bends and moves to deform the entire screen structure every time it is unfolded/rolled. The scroll type display screen generally provides several application states of narrow frame/middle frame/wide frame, and the frequency of using the narrow frame/middle frame state is far greater than that of the wide frame state in consideration of the convenience of the actual use scene. Even so, in all the picture uses, can pull the mechanical structure of whole flexible display panel, and whole flexible display panel receives complicated dynamic load for a long time, is unfavorable for prolonging screen life. The inventor hopes to propose a scheme, especially can reduce the pulling stress to the flexible display panel and prolong the service life of the screen aiming at the use scene of a narrow picture/medium picture state.

In view of the analysis of the above problems, the embodiments of the present application provide a flexible display device, a control method thereof, and an electronic apparatus, where at least two shaft members are provided to limit the track of rolling or unrolling of a flexible display panel, and the rotation motion of the second shaft member is controlled to drive the flexible display panel to roll or unroll, so as to effectively reduce the bending degree of rolling or unrolling of the flexible display panel, thereby reducing the stress of the flexible display panel, and reducing the damage and destruction of the flexible display panel under the action of cyclic load. And, only in the state that flexible display panel was fully expanded, the pulling stress that first end received just will suddenly increase, and the flexible display device of spool class generally uses with narrow picture/half picture state, can not increase the pulling force that first end received by a wide margin in this state, therefore, this application embodiment has still fully considered the conventional use scene of flexible display device of spool class, helps further extension flexible display device's life.

Embodiments of the present application are described below with reference to the accompanying drawings.

Fig. 3 illustrates a rolled-up schematic view of a flexible display device in a rolled-up state in one embodiment provided herein. Fig. 4 is a schematic winding view illustrating an unfolded state of a flexible display device according to an embodiment of the present application. As shown in fig. 3 and 4, an embodiment of the present application provides a flexible display device, including: a flexible display panel 14, a first shaft member 11, a second shaft member 12, a fixing member 13, and a housing 15.

In the embodiment of the present application, the flexible display device may be a scroll-type display device, and may include a housing 15 having a shaft member built therein and a flexible display panel 14 that may be rolled up or unrolled with the rotation of the shaft member.

The housing 15 is used for forming a containing cavity and an opening on the containing cavity, and the first shaft member 11, the second shaft member 12 and the fixing member 13 are arranged in the containing cavity.

Wherein, in order to improve the space utilization, and enhance the portability of the flexible display device, in some alternative embodiments, the shape of the housing 15 and the accommodating cavity may include: cylindrical.

In some alternative embodiments, the opening may be provided in an arcuate side of the cylindrical housing 15, and the shape of the opening may include: rectangular. The long side length of the opening may be slightly greater than the width of the flexible display panel 14 to facilitate crimping/deployment of the flexible display panel 14 through the opening.

Illustratively, the long side length of the opening may be 1% to 3% greater than the width of the flexible display panel 14.

In the present embodiment, the width of the flexible display panel 14 may refer to the length of the flexible display panel 14 perpendicular to the rolling/unrolling direction.

The flexible display panel 14 passes through the opening, including: the first end 141 and the second end 142, the first end 141 is disposed in the accommodating cavity and fixedly connected with the fixing member 13, and the second end 142 is disposed outside the accommodating cavity.

The second shaft member 12 is parallel to the first shaft member 11, and is configured to be rotatable about the first shaft member 11 and rotatable about its own axis.

In this embodiment, the second shaft member 12 rotates around the first shaft member 11 and/or rotates around its own axis, so as to drive the flexible display panel 14 to roll or stretch, thereby changing the length of the flexible display panel 14 outside the accommodating cavity, and then changing the size of the screen that can be displayed to the user.

In this embodiment of the present application, the second shaft member 12 may be driven by the control module to rotate around the first shaft member 11, so as to drive the flexible display panel 14 to roll or unwind, and the first shaft member 11 and the second shaft member 12 may rotate around their own axes along with the movement of the flexible display panel 14, so as to reduce the stress applied to the flexible display panel 14.

The fixing member 13 is disposed between the locus 121 of rotation of the second shaft member 12 about the first shaft member 11 and the first shaft member 11.

In order to improve the stability of the connection of the first end 141 of the flexible display panel 14 with the fixing member 13, in an alternative embodiment, the fixing member 13 may have a length greater than the width of the flexible display panel 14. Illustratively, the length of the securing member 13 may be between 2 and 5% greater than the width of the flexible display panel 14.

In an alternative embodiment, the fixing member 13 may be a cylinder parallel to the first shaft member 11 or the second shaft member 12.

In order to further increase the space utilization within the receiving cavity, in an alternative embodiment, the securing member 13 may be a U-shaped cylinder around a portion of the circumference of the first shaft member 11.

To facilitate the positional constraint of the housing 15 on the first shaft member 11, the second shaft member 12 and the securing member 13, in an alternative embodiment, the first shaft member 11, the second shaft member 12 and the securing member 13 are of equal length.

In order to avoid interference between the first shaft member 11, the second shaft member 12 or the fixing member 13 and the housing 15 for limiting and the flexible display panel 14, in some alternative embodiments, the length of the first shaft member 11 or the second shaft member 12 may be greater than the width of the flexible display panel 14. Illustratively, the length of the first shaft member 11 or the second shaft member 12 may be between 2 and 5% greater than the width of the flexible display panel 14.

In some alternative embodiments, the first shaft member 11, the second shaft member 12, or the fixing member 13 may be made of metal. Illustratively, the material of the first shaft member 11, the second shaft member 12 or the fixing member 13 may include at least one of the following: stainless steel, titanium, aluminum, and the like.

Through the above embodiment, the flexible display panel 14 is fixedly connected to the fixing member 13 in the accommodating cavity, and the fixing member 13 is disposed between the track 121 of the second shaft member 12 rotating around the first shaft member 11 and the first shaft member 11, and the second shaft member 12 is controlled to rotate around the first shaft member 11 to drive the flexible display panel 14 to realize rolling or unfolding, so that the bending degree of rolling or unfolding of the flexible display panel 14 can be effectively reduced, and the stress on the flexible display panel 14 is reduced, thereby reducing the damage and destruction of the flexible display panel 14 under the action of the cyclic load.

Moreover, only in the fully unfolded state of the flexible display panel 14, the pulling stress applied to the first end 141 will suddenly increase, and the flexible display device of the reel type is usually used in a half-frame state, and the pulling force applied to the first end 141 will not be greatly increased in this state, so that the conventional use situation of the flexible display device of the reel type is fully considered in the embodiment of the present application, which is helpful for further prolonging the service life of the flexible display device.

Moreover, in the embodiment of the application, the flexible display panel 14 can be rolled or unrolled under the condition that only the second shaft member 12 rotates around the first shaft member 11, so that the use of a control module can be saved, and the manufacturing cost of the flexible display device can be reduced.

In order to reduce the stress to which the flexible display panel 14 is rolled/unrolled by the second shaft member 12, in some alternative embodiments, the friction coefficient of the side surface of the first shaft member 11 may be smaller than a preset friction coefficient threshold. Thus, the side surface of the second shaft member 12 is smooth, which can effectively help the flexible display panel 14 to be rolled/unrolled by the second shaft member 12.

In some alternative embodiments, the preset friction coefficient threshold may be between 0.1 and 0.5.

Illustratively, the coefficient of friction of the side surface of the first shaft member 11 may be in the range of 0.1 to 0.3.

In order to further reduce the stress to which the flexible display panel 14 is rolled/unrolled by the second shaft member 12, in yet other alternative embodiments, the present application also provides a flexible display device in which the first shaft member 11 is configured to be rotatable about its own axis.

The present embodiment contemplates using the control module to actively control the rotation of the second shaft member 12, thereby driving the flexible display panel 14 to roll or unroll. To this end, in some alternative embodiments, the present application further provides a flexible display device, wherein further comprising: a control module, connected to the second shaft member 12, is configured to be able to drive the second shaft member 12 to rotate about the first shaft member 11 in a first clock direction 101 and/or in a second clock direction 102.

Wherein the first hour hand direction 101 is opposite to the second hour hand direction 102.

In some alternative examples, the first time needle direction 101 may be a counterclockwise direction relative to the first shaft 11 from an end of the first shaft 11 and the second clockwise direction 102 may be a clockwise direction relative to the first shaft 11 from the end of the first shaft 11.

In yet other alternative examples, the first time needle direction 101 may be a clockwise direction relative to the first shaft 11 from an end of the first shaft 11 and the second time needle direction 102 may be a counterclockwise direction relative to the first shaft 11 from the end of the first shaft 11.

Fig. 5 is a schematic diagram of a control module of a flexible display device according to an embodiment of the disclosure. As shown in fig. 5, the present embodiment contemplates connecting and driving the second shaft member 12 to rotate about the first shaft member 11 using a connecting rod. To this end, in some alternative embodiments, the present application further provides a flexible display device, wherein the control module includes: a first driving module 161 and a first link 171.

The first driving module 161 is connected to the second shaft member 12 through a first link 171.

Wherein, the end of the first connecting rod 171 connected with the first driving module 161 is coaxial with the first shaft member 11, and the end of the first connecting rod 171 connected with the second shaft member 12 is coaxial with the second shaft member 12.

The first driving module 161 may include: a first motor.

Fig. 6 is a schematic cross-sectional view of a limiting member according to an embodiment of the present application. As shown in fig. 6, embodiments of the present application may also utilize a stop to limit the position of the shaft. To this end, in some alternative embodiments, the present application further provides a flexible display device, wherein further comprising: the first limiting piece 181 and the second limiting piece 182 are located in the accommodating cavity.

The center of the first limiting member 181 faces the axis of the first shaft member 11, and the second limiting member 182 is connected between the first shaft member 11 and the second shaft member 12.

In some alternative embodiments, the first stop member 181 may be fixedly coupled to the inner wall of the housing 15.

In some alternative embodiments, as shown in fig. 6, the first limiting member 181 may serve as the shaft center of the first shaft member 11.

The first stopper 181 is configured to fix the position of the first shaft member 11.

The second limiting member 182 is configured to fix the locus 121 of rotation of the second shaft member 12 about the first shaft member 11.

In some alternative embodiments, the second stop 182 may be coupled to the first stop 181.

In some alternative embodiments, to save space, the first link 171 may include the structure of the first and second stoppers 181 and 182, thereby achieving functionally equivalent alternatives.

Wherein, in some alternative embodiments, a portion of the second limiting member 182 may serve as the axle center of the second shaft member 12, and the second shaft member 12 may rotate about the portion of the second limiting member 182.

In some alternative embodiments, the first limiting member 181 may be coincident with an end structure of the first link 171 connected to the first driving module 161. In case that the first driving module 161 drives the first link 171 to rotate, the first and second stoppers 181 and 182 follow the rotation, so that the second shaft member 12 rotates around the first shaft member 11.

Fig. 7 is a schematic cross-sectional view of a stopper according to still another embodiment of the present application. As shown in fig. 7, embodiments of the present application may also utilize a guide rail 19 to limit the position of the second shaft member 12. To this end, in some alternative embodiments, the present application further provides a flexible display device, wherein further comprising: the first limiting member 181 and the guide rail 19 are positioned in the accommodating cavity.

Wherein the center of the first limiting member 181 faces the axis of the first shaft member 11, and the guide rail 19 overlaps the track 121 of the second shaft member 12 rotating around the first shaft member 11.

In some alternative embodiments, the first stop member 181 may be provided on an inner wall of the housing 15.

The guide rail 19 is configured to fix a locus 121 of rotation of the second shaft member 12 about the first shaft member 11.

In some alternative embodiments, the guide rail 19 may be provided on the inner wall of the housing 15.

Based on the same inventive concept, the present application also provides a control method of a flexible display device, which is applied to the flexible display device in any one of the above embodiments, including:

the second shaft member 12 is controlled to rotate about the first shaft member 11 in the first hour hand direction 101 to roll the flexible display panel 14, or the second shaft member 12 is controlled to rotate about the first shaft member 11 in the second hour hand direction 102 to unroll the flexible display panel 14.

By the above-described embodiment, the control method can be applied to the flexible display device having the fixing member 13, and the rolling or unrolling of the flexible display panel 14 can be achieved by the switching of the rotation direction of the second shaft member 12 in the case of rotating around the first shaft member 11 by only the second shaft member 12.

Fig. 8 shows a schematic winding diagram of a first state of a flexible display device according to still another embodiment provided herein. Fig. 9 shows a schematic winding diagram of a second state of a flexible display device in yet another embodiment provided herein. Fig. 10 shows a schematic winding diagram of a third state of a flexible display device in yet another embodiment provided herein. As shown in fig. 8 to 10, based on the same inventive concept, the present application also provides a flexible display device including: a flexible display panel 14, a first shaft member 11, a second shaft member 12, and a housing 15.

The housing 15 is used for forming a containing cavity and an opening on the containing cavity, and the first shaft member 11 and the second shaft member 12 are arranged in the containing cavity.

The flexible display panel 14 passes through the opening, including: the first end 141 and the second end 142, the first end 141 is disposed in the accommodating cavity and fixedly connected with the second shaft member 12, and the second end 142 is disposed outside the accommodating cavity.

Through the above embodiment, the flexible display panel 14 is fixedly connected to the second shaft member 12, and the second shaft member 12 is controlled to rotate around the first shaft member 11 and/or its own axis, so that the flexible display panel 14 can be driven to realize rolling or unfolding, so that the control accuracy of rolling or unfolding the flexible display panel 14 is improved, and the number of turns of the flexible display panel 14 around the second shaft member 12 is maintained in a state that the flexible display panel 14 is not fully unfolded, so that stress pulling caused to the first end 141 is reduced, the structural stability of the flexible display device is improved, and the service life of the flexible display device is prolonged. In addition, only in the fully unfolded state of the flexible display panel 14, the pulling stress applied to the first end 141 is suddenly increased, but in the actual product end use situation, the reel type flexible display device is usually switched between the maximum rolling state and the half-frame state, so that the pulling stress applied to the first end 141 is not greatly increased. Therefore, the practical use factors of the flexible display device of the scroll type are fully considered, the structural stability of the flexible display device is further improved, and the service life of the flexible display device is prolonged.

The embodiment of the application contemplates that the control module actively controls the second shaft member 12 to rotate around the first shaft member 11 and/or its own axle center, so as to drive the flexible display panel 14 to roll or unwind. To this end, in some alternative embodiments, the present application further provides a flexible display device, wherein further comprising: a control module; is connected to the second shaft member 12 and is configured to drive the second shaft member 12 to rotate about the first shaft member 11 in the first clock direction 101 and/or in the second clock direction 102, and to drive the second shaft member 12 to rotate about its own axis in the first clock direction 101 and/or in the second clock direction 102;

Fig. 11 is a schematic diagram of a control module of a flexible display device according to another embodiment of the disclosure. As shown in fig. 11, the present embodiment contemplates that the first link 171 is used to connect and drive the second shaft member 12 to rotate about the first shaft member 11, and the second link 172 is used to connect and drive the second shaft member 12 to rotate about its own axis. To this end, in some alternative embodiments, the present application further provides a flexible display device, wherein the control module includes: the first driving module 161 and the first link 171, and the second driving module 162 and the second link 172.

The first driving module 161 is connected to the second shaft member 12 through a first link 171; wherein, one end of the first connecting rod 171 connected with the first driving module 161 is coaxial with the first shaft member 11, and one end of the first connecting rod 171 connected with the second shaft member 12 is coaxial with the second shaft member 12;

the second driving module 162 is connected with the second shaft member 12 through a second connecting rod 172; wherein the second link 172 is coaxial with the second shaft member 12.

To further reduce cost and save space, in some alternative embodiments, the end of the first link 171 connected to the second shaft member 12 may include a second link 172, and the second drive module 162 is fixedly connected to the end of the first link 171 connected to the second shaft member 12 and may rotate with the first link 171.

In still other alternative embodiments, the first link 171 may be connected with one end of the second driving module 162, and the second link 172 may be connected with the remaining end of the second driving module 162, such that the second driving module 162 may rotate following the first link 171.

The first driving module 161 may include: the first motor, the second driving module 162 may include: and a second motor.

In some alternative embodiments, the flexible display device of the present application may be configured in three states: a first state, a second state, and a third state.

Illustratively, the first state may be a maximum expanded state, the second state may be an incomplete expanded state, and the third state may be a maximum contracted state.

In some alternative embodiments, as shown in fig. 8, in the first state, the number of turns of the flexible display panel 14 around the second shaft member 12 is at a minimum, the number of turns of the flexible display panel 14 around the first shaft member 11 is at a minimum, and the proportion of the flexible display panel 14 located outside the cavity is at a maximum.

In some alternative embodiments, as shown in fig. 9, in the second state, the number of turns of the flexible display panel 14 around the second shaft member 12 is greater than 50%, the number of turns of the flexible display panel 14 around the first shaft member 11 is less than 50%, and the proportion of the flexible display panel 14 located outside the cavity is greater than 30% and less than 80%.

In some alternative embodiments, as shown in fig. 10, in the third state, the number of turns of the flexible display panel 14 around the second shaft member 12 is greatest, the number of turns of the flexible display panel 14 around the first shaft member 11 is greatest, and the proportion of the flexible display panel 14 located outside the cavity is smallest.

in the case where the expansion ratio of the flexible display panel 14 is greater than the first ratio threshold and less than the second ratio threshold, the second shaft member 12 is controlled to rotate about the first shaft member 11 in the first time-needle direction 101 to wind up the flexible display panel 14, or the second shaft member 12 is controlled to rotate about the first shaft member 11 in the second time-needle direction 102 to expand the flexible display panel 14.

In some alternative embodiments, the first ratio threshold may be a ratio between a current length of the flexible display panel 14 outside the accommodation cavity and a maximum length of the flexible display panel 14 outside the accommodation cavity in a state in which the second shaft member 12 rotates around its axis to a maximum extent in the first needle direction 101 and the second shaft member 12 rotates around the first shaft member 11 to a minimum extent in the first needle direction 101, that is, in a state in which the number of turns of the flexible display panel 14 around the second shaft member 12 is maximum and the number of turns of the flexible display panel 14 around the first shaft member 11 is minimum.

In some alternative embodiments, the second ratio threshold is less than 1.

Illustratively, the first proportional threshold may be 30% and the second proportional threshold may be 80%.

In the case where the expansion ratio of the flexible display panel 14 is smaller than the first ratio threshold, the second shaft member 12 is controlled to rotate around its own axis in the first hour hand direction 101 to curl the flexible display panel 14, or the second shaft member 12 is controlled to rotate around its own axis in the second hour hand direction 102 to expand the flexible display panel 14.

Based on the same inventive concept, an embodiment of the present application further provides an electronic device, including: the flexible display device as in any one of the embodiments above.

In some alternative embodiments, an electronic device may include: the flexible display device as in any one of the embodiments above.

Fig. 12 shows an external schematic view of an electronic device in one embodiment provided herein. As shown in fig. 12, based on the same inventive concept, an embodiment of the present application further provides an electronic device, including: two flexible display devices as in any of the embodiments above.

Wherein the two flexible display devices share a flexible display panel.

The electronic device includes two flexible display devices, and then includes two housings 15, where the two housings 15 are symmetrically disposed and share one flexible display panel 14.

The second end 142 of the flexible display panel 14 in any flexible display device may be the first end 141 of the flexible display panel 14 in the remaining one flexible display device.

By this embodiment, the shaft members in the two housings 15 can be made to jointly unwind or wind the flexible display panel 14, thereby improving the symmetrical aesthetic property of the electronic device and enhancing the structural protection of the flexible display panel 14.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal 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 terminal. 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 terminal device comprising the element.

In the description of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more. Unless otherwise indicated, "about," "left and right," "approximately" and the like are defined as non-absolute, and express values within + -10% of the reference value.

It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the description of the present application, unless otherwise indicated, the meaning of "same layer" means that two or more defined objects are at the same layer position in a stacked relationship, or are all or partially at the same level in the thickness direction of the stacked relationship.

The term "and/or", as used herein, is merely one type of association that describes an associated object, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist together, and B exists alone.

Finally, it should be further noted that specific examples are used herein to illustrate the principles and embodiments of the present application, and the above examples are only for aiding in understanding the technical solutions and core ideas of the present application. While preferred embodiments of the present embodiments have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the present application.

Claims

1. A flexible display device, comprising: the display device comprises a flexible display panel, a first shaft piece, a second shaft piece, a fixing piece and a shell;

2. The flexible display device according to claim 1, wherein the first shaft member is configured to be rotatable about its own axis.

3. The flexible display device of claim 1, further comprising: a control module connected with the second shaft piece and configured to drive the second shaft piece to rotate around the first shaft piece in a first time needle direction and/or rotate in a second time needle direction;

4. A flexible display device as claimed in claim 3, wherein the control module comprises: a first drive module and a first link;

5. The flexible display device of claim 1, further comprising: the first limiting piece and the second limiting piece are positioned in the accommodating cavity; the center of the first limiting piece is opposite to the axis of the first shaft piece, and the second limiting piece is connected between the first shaft piece and the second shaft piece;

6. The flexible display device of claim 1, further comprising: the first limiting piece and the guide rail are positioned in the accommodating cavity; the center of the first limiting piece is opposite to the axis of the first shaft piece, and the guide rail is overlapped with the track of the second shaft piece rotating around the first shaft piece;

7. A flexible display device, comprising: the flexible display panel, the first shaft piece, the second shaft piece and the shell;

8. The flexible display device of claim 7, further comprising: a control module; is connected with the second shaft piece and is configured to drive the second shaft piece to rotate around the first shaft piece in a first time needle direction and/or rotate in a second time needle direction, and drive the second shaft piece to rotate around the axle center of the second shaft piece in the first time needle direction and/or rotate in the second time needle direction;

9. The flexible display device of claim 8, wherein the control module comprises: the first driving module and the first connecting rod, the second driving module and the second connecting rod;

10. A control method of a flexible display device, characterized by being applied to the flexible display device according to any one of claims 1 to 6, comprising:

11. A control method of a flexible display device, characterized by being applied to the flexible display device according to any one of claims 7 to 9, comprising:

12. An electronic device, comprising: two flexible display devices according to any one of claims 1 to 9;

wherein the two flexible display devices share a flexible display panel.