CN111819615B

CN111819615B - flexible display device

Info

Publication number: CN111819615B
Application number: CN201880087874.1A
Authority: CN
Inventors: 凡小飞
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd
Priority date: 2018-02-09
Filing date: 2018-02-09
Publication date: 2022-05-17
Anticipated expiration: 2038-02-09
Also published as: WO2019153257A1; CN111819615A

Abstract

The application discloses a flexible display device (100), which comprises a flexible display screen (102), a shell (104) and a supporting structure (106), wherein the supporting structure (106) is connected with one end of the shell (104) and one end of the flexible display screen (102), the supporting structure (106) can drive the flexible display screen (102) to stretch and retract relative to the shell (104) so as to switch between an unfolding state and a recovery state, and the supporting structure (106) comprises a sliding rail assembly (108); the sliding rail assembly (108) comprises a plurality of sliding rail blocks (110) which are arranged along the telescopic direction of the supporting structure (106); the sliding rail blocks (110) are connected in a relatively sliding mode and form a supporting plane (112) for supporting the flexible display screen (102) together, and the supporting plane (112) in the unfolding state and the supporting plane (112) in the recovery state are in the same plane.

Description

Flexible display device

Technical Field

The application relates to the technical field of display, in particular to a flexible display device.

Background

Flexible display screens are widely used in the field of electronic devices due to their low power consumption, flexibility, and good flexibility. The flexible display screen is thin and easy to bend or fold, and a support structure is required to support the flexible display screen when the flexible display screen is used. In the related art, when the flexible display screen is unfolded, the supporting structure of the flexible display screen cannot provide a flat plane to support the flexible display screen on the whole surface, and the supporting effect is poor.

Disclosure of Invention

Embodiments of the present application provide a flexible display device.

The flexible display device of the embodiment of the application comprises:

a flexible display screen;

a housing connected to one end of the flexible display screen and partially receiving the flexible display screen;

connect the casing with the bearing structure of flexible display screen other end, bearing structure can drive flexible display screen for the casing is flexible in order to make a round trip to switch at development condition and recovery state, bearing structure includes slide rail set spare, slide rail set spare includes the edge a plurality of slide rail pieces that the flexible direction of bearing structure was arranged, a plurality of slide rail piece relatively sliding connection form the support jointly the support plane of flexible display screen, when development condition the support plane with when retrieving the condition the support plane is in the coplanar.

The flexible display device of this application embodiment, the supporting plane that a plurality of slide rail block of bearing structure formed is the coplanar at bearing structure's expansion state and recovery state, and flexible display screen can obtain the support of whole face like this, can guarantee flexible display screen at flexible display device's planarization to improve flexible display screen's support effect.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of a flexible display device according to an embodiment of the present application in an unfolded state;

fig. 2 is a schematic perspective view of a flexible display device according to an embodiment of the present application in a recycling state;

FIG. 3 is a schematic perspective view of a support structure according to an embodiment of the present application;

FIG. 4 is another perspective view of a support structure according to an embodiment of the present application;

FIG. 5 is an exploded schematic view of a support structure of an embodiment of the present application;

fig. 6 is an exploded schematic view of a flexible display device according to an embodiment of the present application;

FIG. 7 is a front perspective view of a slide rail assembly according to an embodiment of the present application;

FIG. 8 is a rear perspective view of a slide rail assembly according to an embodiment of the present application;

FIG. 9 is a front exploded schematic view of a slide rail assembly according to an embodiment of the present application;

FIG. 10 is a rear exploded view of the slide rail assembly of an embodiment of the present application;

FIG. 11 is a front perspective view of a lower cover assembly according to an embodiment of the present application;

FIG. 12 is a schematic rear perspective view of a lower cover assembly according to an embodiment of the present application;

FIG. 13 is a front exploded view of the bottom cover assembly according to an embodiment of the present application.

Description of the main element symbols:

the flexible display device 100, the flexible display screen 102, the housing 104, the support structure 106, the slide rail assembly 108, the slide rail block 110, the support plane 112, the bottom cover assembly 114, the back cover 116, the support plate 118, the fixing member 120, the cover plate 122, the first slide rail block 124, the fourth slide rail block 126, the third slide rail block 128, the second slide rail block 130, the first cover plate 132, the fourth cover plate 134, the third cover plate 136, the second cover plate 138, the first connection post 140, the second connection post 142, the first through hole 144, the second through hole 146, the fastening member 148, the third connection post 150, the third through hole 152, the fourth connection post 154, the fourth through hole 156, the accommodation hole 158, the first connection plate 160, the second connection plate 162, the third connection plate 164, the first plate 166, the first comb-shaped tooth 168, the first guide hole 170, the fourth plate 172, the fourth bump 174, the fourth guide hole 176, the first connection member 178, the accommodation groove 180, and the fifth plate 182, Fifth lug 184, fifth guide hole 186, third plate 188, third comb-shaped tooth 190, third guide hole 192, second connecting piece 194, third lug 196, sixth guide hole 198, second plate 101, second comb-shaped tooth 103, second guide hole 105, third connecting piece 107, sliding groove 109, boss 111, reel 113 and key 115.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

Referring to fig. 1 to 4, a flexible display device 100 is provided in an embodiment of the present disclosure. The flexible display device 100 includes a flexible display screen 102, a housing 104, and a support structure 106. A support structure 106 connects the housing 104 and one end of the flexible display screen 102. The support structure 106 is capable of telescoping the flexible display screen 102 relative to the housing 104 to switch back and forth between the deployed state and the retracted state. The support structure 106 includes a slide rail assembly 108. The slide rail assembly 108 includes a plurality of slide blocks 110 aligned along the telescoping direction a of the support structure 106. The plurality of sliding blocks 110 are slidably connected with each other and together form a supporting plane 112 for supporting the flexible display screen 102, and the supporting plane 112 in the unfolded state and the supporting plane 112 in the folded state are in the same plane.

In the flexible display device 100 according to the embodiment of the application, the supporting plane 112 formed by the plurality of sliding rail blocks 110 of the supporting structure 106 is the same plane in the unfolding state and the folding state of the supporting structure 106, so that the flexible display screen 102 can be supported on the whole surface, and the flatness of the flexible display screen 102 on the flexible display device 100 can be ensured, thereby improving the supporting effect of the flexible display screen 102.

In particular, the flexible display device 100 may be applied to electronic devices including, but not limited to, smart phones, tablet computers, notebook computers, and the like.

Referring to fig. 5 and 6, in the present embodiment, the support structure 106 includes a slide rail assembly 108, a bottom cover assembly 114, a back cover 116, a rollable support plate 118, and a fixing member 120.

The slide rail assembly 108 is disposed on the lower cover assembly 114. The lower cover assembly 114 is coupled to the housing 104 and is capable of telescoping in synchronization with the slide rail assembly 108. Thus, the bottom cover assembly 114 can increase the stability of the sliding rail assembly 108 during sliding, and at the same time, can also increase the structural strength of the flexible display device 100.

Specifically, in the present embodiment, one end of the bottom cover assembly 114 is fixedly connected to one end of the slide rail assembly 108, and the other end of the bottom cover assembly 114 is fixedly connected to the other end of the slide rail assembly 108. One end of the lower cover assembly 114 is fixedly connected to the housing 104. This ensures that when the lower cover assembly 114 is moved, the slide rail assembly 108 is also moved synchronously, facilitating the deployment and retrieval of the flexible display device 100.

In the present embodiment, the four slide blocks 110 include a first slide block 124, a fourth slide block 126, a third slide block 128, and a second slide block 130, and the lower cover assembly 114 includes a first cover plate 132, a fourth cover plate 134, a third cover plate 136, and a second cover plate 138. The first cover plate 132 is provided with a plurality of first connecting posts 140, the second cover plate 138 is provided with a plurality of second connecting posts 142, the first slide block 124 is provided with a plurality of first through holes 144, and the second slide block 130 is provided with a plurality of second through holes 146. The first through holes 144 are disposed corresponding to the first connecting posts 140 and connected by fasteners 148, and the second through holes 146 are disposed corresponding to the second connecting posts 142 and connected by fasteners 148. The first and second connecting

posts

140, 142 may be internally threaded, and the fasteners 148 may be screws that mate with the first and second connecting

posts

140, 142. In fig. 5, the number of the first connection posts 140 and the first through holes 144 is four, and the number of the second connection posts 142 and the second through holes 146 is three. Of course, in other embodiments, the number of the first connecting columns 140, the second connecting columns 142, the first through holes 144, and the second through holes 146 can be selected according to actual needs, and it is only necessary to keep the number of the first connecting columns 140 and the number of the first through holes 144 consistent, and the number of the second connecting columns 142 and the number of the second through holes 146 consistent.

Specifically, the housing 104 is provided with a plurality of third connecting posts 150, and the second cover plate 138 is provided with a plurality of third through holes 152. The plurality of third through holes 152 are disposed corresponding to the plurality of third connection posts 150 and connected by the fasteners 148. The third connecting post 150 may be internally threaded, and the fastener 148 may be a screw that mates with the third connecting post 150. In fig. 6, the housing 104 is provided with two third connecting posts 150 and the second cover plate 138 is provided with two third through holes 152. The number of the third connecting posts 150 and the number of the third through holes 152 are the same. Of course, in other ways, the number of the third connecting columns 150 and the third through holes 152 can be selected according to actual needs.

A rear cover 116 is secured to the end of the lower cover assembly 114 remote from the housing 104. The provision of the rear cover 116 may facilitate for operating the flexible display device 100 to switch back and forth between the deployed state and the retracted state. Specifically, the user can hold the back cover 116 with one hand and the housing 104 with the other hand, and then move the two hands relatively away from or closer to each other, so that the back cover 116 can drive the flexible display screen 102 and the slide rail assembly 108 to extend and retract, so as to switch the flexible display device 100 between the extended state and the retracted state.

Specifically, the rear cover 116 is fixed to the first cover plate 132 of the lower cover assembly 114. The first cover 132 is provided with a plurality of fourth connection posts 154, and the plurality of fourth connection posts 154 and the plurality of first connection posts 140 are disposed on opposite sides of the first cover 132 (see fig. 11 and 12). The rear cover 116 is provided with a plurality of fourth through holes 156. The plurality of fourth through holes 156 and the plurality of fourth connection posts 154 are correspondingly disposed and connected by the fasteners 148. Fourth connecting post 154 may be internally threaded and fastener 148 may be a screw configured to mate with fourth connecting post 154. In fig. 6 and 13, the number of the fourth connection posts 154 and the fourth through holes 156 is four. The number of the fourth connecting posts 154 is the same as that of the fourth through holes 156. The four fourth connecting posts 154 are arranged in a rectangular shape, and the four fourth through holes 156 are arranged in a rectangular shape. Of course, in other ways, the number of the fourth connecting posts 154 and the fourth through holes 156 can be selected according to actual needs.

The support plate 118 is carried on the support plane 112 and telescopes with the support structure 106. The flexible display screen 102 is carried on the support plate 118, and the support plate 118 is adhered and fixed with the flexible display screen 102. The fasteners 120 secure the support plate 118 to the slide rail assembly 108. In this manner, the support plate 118 may provide a flatter support surface for better support of the flexible display screen 102.

The flexible display screen 102 may be disposed on the support plate 118. The support plate 118 is fixedly connected to the flexible display screen 102, for example, by gluing. The fasteners 120 secure the support plate 118 to the slide rail assembly 108. Specifically, the fixing member 120 is a magnetic member, the plurality of sliding rail blocks 110 of the sliding rail assembly 108 are provided with accommodating holes 158, the fixing member 120 is located in the accommodating holes 158, and the supporting plate 118 is made of a magnetically absorbable material. As the flexible display screen 102 is extended and retracted relative to the housing 104 to switch between the extended state and the retracted state, the support plate 118 is extended and retracted along with the flexible display screen 102, and the slide rail assembly 108 and the lower cover assembly 114 are also extended and retracted synchronously. In the present embodiment, the fixing member 120 is a magnet piece, and the support plate 118 is a magnetically attractable steel piece. In fig. 5, the first and second sliding

blocks

124 and 130 are opened with receiving holes 158, and the fixing member 120 is located in the receiving holes 158.

Referring to fig. 7-10, four sliding blocks 110: the first track shoe 124, the fourth track shoe 126, the third track shoe 128 and the second track shoe 130 are arranged in sequence along the telescopic direction a of the support structure 106. The first and fourth slide blocks 124, 126 are slidably coupled by a plurality of first coupling plates 160. The fourth slide block 126 is slidably connected to the third slide block 128 via a second connecting plate 162. The third slide block 128 is slidably connected to the second slide block 130 by a plurality of third link plates 164. In this manner, the four blocks 110 are connected together and can slide relative to each other.

Specifically, the first slide rail block 124 includes a first plate 166 and a plurality of first comb-shaped teeth 168 connected to a side of the first plate 166 at intervals, and a first guide hole 170 is formed between two adjacent first comb-shaped teeth 168. The fourth slide block 126 includes a fourth plate 172 and a plurality of spaced fourth bosses 174 attached to the sides of the fourth plate 172. The fourth sliding block 126 is provided with a plurality of fourth guiding holes 176. The first comb-shaped teeth 168 and the first connecting plate 160 are located on opposite sides of the fourth plate 172 (see fig. 7 and 8). The first comb teeth 168 and the first connecting plate 160 are connected by a first connecting member 178 passing through the fourth guide hole 176. The fourth protrusion 174 is located at the first guide hole 170.

It will be appreciated that the first comb teeth 168 and the first connecting plate 160 are connected by a first connector 178 passing through the fourth guide hole 176. In one example, the first connector 178 is a screw. The first comb-shaped teeth 168 and the first connecting plate 160 are each provided with two through holes with internal threads to mate with the first connecting member 178 to connect the first and fourth slide blocks 124, 126.

When the first and

fourth blocks

124, 126 slide relative to each other, the first comb-shaped teeth 168 slide in the fourth guide holes 176, and the fourth protrusions 174 slide in the first guide holes 170.

In this embodiment, one end of the fourth protrusion 174 is shaped like a half-circular arc, which facilitates the fourth protrusion 174 to be assembled into the first guiding hole 170. In other embodiments, one end of the fourth tab 174 may also have other suitable shapes, such as square, triangular, etc. Further, the width of the first guiding hole 170 is greater than or equal to the width of the fourth protrusion 174, and the width of the fourth guiding hole 176 is greater than or equal to the width of the first comb-shaped teeth 168. Preferably, the width of the first guiding hole 170 is slightly larger than the width of the fourth protrusion 174, and the width of the fourth guiding hole 176 is slightly larger than the width of the first comb-shaped teeth 168, so as to facilitate the relative sliding of the first sliding rail block 124 and the fourth sliding rail block 126.

The second connecting plate 162 is provided with a plurality of receiving grooves 180 at intervals, and when the first sliding rail block 124 slides towards the housing 104 by a predetermined distance, each receiving groove 180 receives a corresponding one of the first connecting plates 160. Thus, when the first sliding rail block 124 and the fourth sliding rail block 126 are prevented from sliding relatively, the first connecting plate 160 is abutted by the second connecting plate 162, so that the first sliding rail block 124 cannot slide. At the same time, the length of the support structure 106 in the retracted state may also be reduced.

The fourth sliding rail block 126 includes a fifth plate 182 and a plurality of spaced fifth protrusions 184 connected to a side of the fifth plate 182, and a fifth guiding hole 186 is formed by two adjacent fifth protrusions 184. The third slide block 128 includes a third plate 188 and a plurality of spaced third comb-shaped teeth 190 connected to a side of the third plate 188, and a third guide hole 192 is formed by two adjacent third comb-shaped teeth 190. The third comb teeth 190 are located in the fifth guide holes 186. The third comb teeth 190 are located at one side of the fifth plate 182, and the second connecting plate 162 is flush with the fifth plate 182. The third comb teeth 190 and the second connecting plate 162 are connected by a second link 194 passing through the fifth guide hole 186, and the fifth projection 184 is located in the third guide hole 192.

It is understood that the third comb teeth 190 and the second connecting plate 162 are connected by the second link 194 passing through the fifth guide hole 186. The third comb-shaped teeth 190 have through holes, and the second connecting plate 162 has through holes corresponding to the through holes of the third comb-shaped teeth 190. In one example, the second link 194 is a screw. The through holes of the third comb teeth 190 and the second connecting plate 162 are each internally threaded to mate with the second link 194 to connect the fourth shoe 126 and the third shoe 128.

When the fourth slide block 126 and the third slide block 128 slide relative to each other, the fifth protrusion 184 slides in the third guide hole 192, and the third comb-shaped tooth 190 slides in the fifth guide hole 186.

In this embodiment, one end of the third comb-shaped tooth 190 and one end of the fifth protrusion 184 are both in a semicircular arc shape, which is beneficial for the fifth protrusion 184 to slide in the third guiding hole 192 and the third comb-shaped tooth 190 to slide in the fifth guiding hole 186. In other embodiments, one end of the third comb teeth 190 and one end of the fifth tab 184 can also have other suitable shapes, such as square, triangular, etc. Further, the width of the third guiding hole 192 is greater than or equal to the width of the fifth protrusion 184, and the width of the fifth guiding hole 186 is greater than or equal to the width of the third comb-shaped tooth 190. Preferably, the width of the third guiding hole 192 is slightly larger than the width of the fifth protrusion 184, and the width of the fifth guiding hole 186 is slightly larger than the width of the third comb-shaped teeth 190, so as to facilitate the relative sliding between the fourth sliding block 126 and the third sliding block 128.

In addition, in the present embodiment, the fourth plate 172 and the fifth plate 182 are respectively located on two opposite sides of the fourth sliding rail block 126, and the fourth protrusion 174 and the fifth protrusion 184 are alternately disposed on the fourth sliding rail block 126.

The third slide rail block 128 comprises a third plate body 188 and a plurality of spaced third protruding blocks 196 connected to the side of the third plate body 188, a sixth guide hole 198 is formed in the third slide rail block 128, the second slide rail block 130 comprises a second plate body 101 and a plurality of spaced second comb-shaped teeth 103 connected to the side of the second plate body 101, two adjacent second comb-shaped teeth 103 form a second guide hole 105, the second comb-shaped teeth 103 and the third connecting plate 164 are located on opposite sides of the third plate body 188, the second comb-shaped teeth 103 and the third connecting plate 164 are connected through a third connecting piece 107 penetrating through the sixth guide hole 198, and the third protruding blocks 196 are located in the second guide hole 105. The second comb teeth 103 are located in the sixth guide hole 198.

It is understood that the second comb-shaped teeth 103 and the third connecting plate 164 are connected by the third connecting member 107 passing through the sixth guide hole 198. In one example, the third connection 107 is a screw. The second comb-shaped teeth 103 and the third connecting plate 164 are each provided with two through holes with internal threads to be matched with the third connecting member 107, so as to connect the third slide rail block 128 and the second slide rail block 130.

When the third slide rail block 128 and the second slide rail block 130 slide relative to each other, the second comb-like teeth 103 slide in the sixth guide hole 198, and the third projection 196 slides in the second guide hole 105.

In this embodiment, one end of the third protrusion 196 is shaped like a half-circular arc, which facilitates the third protrusion 196 to be assembled into the second guiding hole 105. In other embodiments, the third bump 196 may be other suitable shapes, such as square, triangular, etc. Further, the width of the second guiding hole 105 is greater than or equal to the width of the third protrusion 196, and the width of the sixth guiding hole 198 is greater than or equal to the width of the second comb-shaped teeth 103. Preferably, the width of the second guiding hole 105 is slightly larger than the width of the third protrusion 196, and the width of the sixth guiding hole 198 is slightly larger than the width of the second comb-shaped teeth 103, so as to facilitate the relative sliding between the third sliding block 128 and the second sliding block 130.

In addition, in the present embodiment, a third protrusion 196 is disposed between two adjacent third comb-shaped teeth 190, the third comb-shaped teeth 190 and the third protrusion 196 are disposed at the side of the third plate body 188 in an interlaced manner, and the sixth guiding hole 198 can be opened in the third comb-shaped teeth 190 and the third plate body 188, so as to achieve a longer sliding distance of the sliding rail assembly 108.

In the present embodiment, the slide rail assembly 108 includes a first slide rail block 124, a fourth slide rail block 126, a third slide rail block 128, and a second slide rail block 130. Of course, in other embodiments, the slide rail assembly 108 may include at least two slide blocks 110. For example, when the slide rail assembly 108 includes a first slide rail block and a second slide rail block, the first slide rail block and the second slide rail block may be connected according to the connection manner of any two slide rail blocks 110 of the first slide rail block 124, the fourth slide rail block 126, the third slide rail block 128 and the second slide rail block 130, that is, according to the connection manner of the first slide rail block 124 and the fourth slide rail block 126, or according to the connection manner of the fourth slide rail block 126 and the third slide rail block 128, or according to the connection manner of the third slide rail block 128 and the second slide rail block 130.

Referring to fig. 11-13, the bottom cover assembly 114 includes a plurality of cover plates 122 connected in a sliding manner, wherein, in two adjacent cover plates 122, sliding grooves 109 are formed on two side surfaces of one cover plate 122, and bosses 111 engaged with and limiting the sliding grooves 109 are formed on two side surfaces of the other cover plate 122. In this way, the boss 111 and the sliding groove 109 function as a fitting and a limiting function of the two cover plates 122.

It is understood that, in the embodiment of the present application, the lower cover assembly 114 includes a first cover plate 132, a fourth cover plate 134, a third cover plate 136, and a second cover plate 138. The first cover plate 132 is provided with sliding grooves 109 on both side surfaces thereof, the fourth cover plate 134 is provided with bosses 111 and sliding grooves 109 on both side surfaces thereof, the third cover plate 136 is provided with bosses 111 and sliding grooves 109 on both side surfaces thereof, and the second cover plate 138 is provided with bosses 111 on both side surfaces thereof. The sliding groove 109 of the first cover plate 132 cooperates with the boss 111 of the fourth cover plate 134 to enable the first cover plate 132 and the fourth cover plate 134 to slide relatively, the sliding groove 109 of the fourth cover plate 134 cooperates with the boss 111 of the third cover plate 136 to enable the fourth cover plate 134 and the third cover plate 136 to slide relatively, and the sliding groove 109 of the third cover plate 136 cooperates with the boss 111 of the second cover plate 138 to enable the third cover plate 136 and the second cover plate 138 to slide relatively. Preferably, the sliding slot 109 is enclosed by the boss 111, which simplifies the structure of the cover plate 122 and improves the manufacturing efficiency. The boss 111 may protrude inward toward the cover plate 122 or outward toward the cover plate 122, and accordingly, when the boss 111 protrudes inward toward the cover plate 122, the sliding groove 109 faces outward toward the cover plate 122; when the boss 111 protrudes outward of the cover plate 122, the slide groove 109 faces inward of the cover plate 122. The bottom cover assembly 114 may be made of metal or plastic.

Referring to fig. 6, the flexible display device 100 includes a roller 113 disposed in the housing 104, and one end of the flexible display screen 102 is connected to the roller 113. The outer surface of the housing 104 is provided with a button 115, a motor (not shown) is disposed in the winding drum 113, the button 115 is connected to the motor, and the motor rotates to drive the winding drum 113 to rotate. In this way, the flexible display device 100 can be kept compact by using the winding drum 113 to wind the flexible display screen 102. The keys 115 may facilitate a user to operate the flexible display device 100 to toggle between the deployed state and the stowed state.

It is understood that the support structure 106 is capable of telescoping the flexible display screen 102 relative to the housing 104 to switch back and forth between the deployed state and the retracted state. When the flexible display screen 102 is in the retracted state, the rear cover 116 can be manually pulled to extend the lower cover assembly 114 and the slide rail assembly 108. Because the supporting plate 118 is fixed to the flexible display screen 102 by adhesion, the supporting plate 118 is fixed to the sliding rail assembly 108 through the fixing member 120 (magnetic member), and the supporting structure 106 can drive the flexible display screen 102 to extend relative to the housing 104. When the flexible display screen 102 is in the unfolded state, the motor is controlled to rotate by the button 115 to drive the winding drum 113 to rotate, so that the flexible display screen 102 is wound and shrunk relative to the housing 104. It should be noted that the fixing members 120 are disposed on the sliding rail blocks 110 at two ends of the sliding rail assembly 108 to attract the fixed support plate 118, a magnetic attraction force of the fixing members 120 on the sliding rail blocks 110 close to the housing 104 to the support plate 118 is smaller than a force of the motor to roll the flexible display screen 102, and a magnetic attraction force of the fixing members 120 on the sliding rail blocks 110 far from the housing 104 to the support plate 118 is larger than a force of the motor to roll the flexible display screen 102. Thus, when the flexible display screen 102 is rolled, the sliding rail assembly 108 and the lower cover assembly 114 can be driven to shrink, and the supporting plate 118 can be ensured to be rolled along with the flexible display screen 102. Preferably, one end of the support plate 118 is fixed to the first plate 166 of the first slide block 124, so that the support plate 118 is prevented from separating from the slide rail assembly 108 when the flexible display screen 102 is rolled, and the support structure 106 cannot be retracted along with the rolling of the flexible display screen 102. In this manner, it is ensured that the support plate 118 and the slide rail assembly 108 are not separated.

In some embodiments, a control element (not shown) is disposed in the housing 104, and the control element is used for controlling the flexible display device 100.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A flexible display device, comprising:

flexible display;

a casing, which is connected to one end of the flexible display screen and partially accommodates the flexible display screen;

A support structure connecting the casing and the other end of the flexible display screen, the support structure can drive the flexible display screen to expand and contract relative to the casing to switch back and forth between the unfolded state and the retracted state, and the support structure includes A slide rail assembly, the slide rail assembly includes a plurality of slide rail blocks arranged along the telescopic direction of the support structure, the plurality of slide rail blocks are relatively slidably connected and together form a support plane for supporting the flexible display screen, where the the support plane in the unfolded state and the support plane in the retracted state are in the same plane;

The plurality of sliding blocks include a fourth sliding rail block, a third sliding rail block and a second sliding rail block, and the fourth sliding rail block includes a fifth plate body and is connected to the side of the fifth plate body and is spaced apart A plurality of fifth bumps; the third sliding rail block includes a third plate body and a plurality of third comb-shaped teeth connected to the side of the third plate body and spaced apart, two adjacent to the third plate body The comb-shaped teeth form third guide holes, and the third comb-shaped teeth are provided with sixth guide holes; the second sliding rail block includes a second plate body and is connected to the side of the second plate body and is spaced apart a plurality of second comb teeth;

When the fourth sliding rail block and the third sliding rail block slide relative to each other, the fifth projection block slides in the third guide hole; When the two sliding rail blocks slide relative to each other, the second comb-shaped teeth slide in the sixth guide hole.

2 . The flexible display device according to claim 1 , wherein the plurality of sliding rail blocks further comprises a first sliding rail block, and the second sliding rail block is connected between the first sliding rail block and the other sliding rail blocks. 3 . between the shells.

3 . The flexible display device according to claim 2 , wherein the first sliding rail block, the fourth sliding rail block, the third sliding rail block and the second sliding rail block are located along the The expansion and contraction directions of the support structure are arranged in sequence.

4 . The flexible display device according to claim 3 , wherein the first sliding rail block and the fourth sliding rail block are slidably connected through a plurality of first connecting plates, and the fourth sliding rail block is connected to the flexible display device according to claim 3 . The third sliding rail block is slidably connected through a second connecting plate, and the third sliding rail block and the second sliding rail block are slidably connected through a plurality of third connecting plates.

5 . The flexible display device according to claim 4 , wherein the first sliding rail block comprises a first plate body and a plurality of first comb-shaped teeth connected to the side of the first plate body and spaced apart. 6 . , two adjacent first comb-shaped teeth form first guide holes, and the fourth slide rail block further includes a fourth plate body and a plurality of fourth plates connected to the side of the fourth plate body and spaced apart The fourth sliding rail block is provided with a plurality of fourth guide holes, the first comb-shaped teeth and the first connecting plate are located on opposite sides of the fourth plate body, the first A comb-shaped tooth and the first connecting plate are connected by a first connecting piece passing through the fourth guide hole, and the fourth protrusion is located in the first guide hole.

6 . The flexible display device according to claim 5 , wherein a plurality of spaced accommodating grooves are formed on the second connecting plate, and when the first sliding rail block slides toward the housing a predetermined distance. 7 . , each of the accommodating grooves accommodates a corresponding one of the first connecting plates.

7 . The flexible display device according to claim 4 , wherein the fourth slide rail block is adjacent to two fifth bumps to form fifth guide holes, and the third comb-shaped teeth are located at the the fifth guide hole, the third comb-shaped teeth are located on one side of the fifth plate body, the second connecting plate is flush with the fifth plate body, the third comb-shaped teeth and the The second connecting plate is connected by a second connecting piece passing through the fifth guide hole.

8 . The flexible display device according to claim 4 , wherein the third sliding rail block comprises a third board body and a plurality of third bumps connected to the side of the third board body and spaced apart, The third slide rail block is provided with a sixth guide hole, the second slide rail block is adjacent to two second comb-shaped teeth to form a second guide hole, and the second comb-shaped teeth and the The third connecting plates are located on opposite sides of the third plate body. The second comb-shaped teeth and the third connecting plate are connected by a third connecting piece passing through the sixth guide hole. The third bump is located in the second guide hole.

9 . The flexible display device according to claim 1 , wherein the support structure comprises a lower cover assembly, the slide rail assembly is disposed on the lower cover assembly, and the lower cover assembly is connected to the casing. 10 . And can be extended and retracted synchronously with the slide rail assembly.

10 . The flexible display device according to claim 9 , wherein one end of the lower cover assembly is fixedly connected to one end of the slide rail assembly, and the other end of the lower cover assembly is connected to the other end of the slide rail assembly. 11 . The other end is fixedly connected, and one end of the lower cover assembly is fixedly connected to the housing.

11 . The flexible display device according to claim 9 , wherein the lower cover assembly comprises a plurality of cover plates that are slidably connected, and among the two adjacently connected cover plates, one of the cover plates has a Two side surfaces are provided with sliding grooves, and two side surfaces of the other cover plate are provided with bosses that cooperate with and limit the position of the sliding grooves.

12 . The flexible display device of claim 9 , wherein the support structure comprises a back cover, and the back cover is fixed on an end of the lower cover assembly away from the housing. 13 .

13 . The flexible display device of claim 1 , wherein the support structure comprises a rollable support plate, the support plate is carried on the support plane and expands and contracts with the expansion and contraction of the support structure, 13 . The flexible display screen is carried on the support plate.

14 . The flexible display device of claim 13 , wherein the support structure comprises a fixing member, and the fixing member fixes the support plate on the slide rail assembly. 15 .

15 . The flexible display device according to claim 14 , wherein the fixing member is a magnetic member, an accommodating hole is formed on the sliding rail block, the fixing member is located in the accommodating hole, and the The support plate is made of magnetically adsorbable material.

16 . The flexible display device according to claim 13 , wherein the support plate and the flexible display screen are pasted and fixed. 17 .

17 . The flexible display device of claim 1 , wherein the flexible display device comprises a reel disposed in the housing, and one end of the flexible display screen is connected to the reel. 18 .

18 . The flexible display device according to claim 17 , wherein a button is provided on the outer surface of the casing, a motor is provided in the reel, the button is connected to the motor, and the motor rotates to drive the motor. 19 . The reel turns.