CN112396970B - Display device - Google Patents
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- CN112396970B CN112396970B CN202011464030.XA CN202011464030A CN112396970B CN 112396970 B CN112396970 B CN 112396970B CN 202011464030 A CN202011464030 A CN 202011464030A CN 112396970 B CN112396970 B CN 112396970B
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- 238000005096 rolling process Methods 0.000 claims description 14
- 238000004804 winding Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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Abstract
The present invention provides a display device including: the shell is provided with a containing groove; the end of the scroll is positioned in the accommodating groove and is rotatably connected with the shell, and the scroll is suitable for rotating around the connection part of the scroll and the shell so that the scroll is completely accommodated in the accommodating groove or is rotated out of the accommodating groove; the flexible display screen surrounds the reel, and the reel is suitable for rotating by taking the central shaft of the reel as a center, so that the flexible display screen is driven to be wound or unwound. According to the display device, the flexible display screen can be unfolded in two modes, and the application scenes of the display device are richer.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
With the development of display screen technology, the display screen gradually develops from a hard screen to a flexible screen, and develops from a direction of bending from a fixed curvature to a direction of folding and then curling, so that a scroll-type display device is developed. In the existing scroll-type display device, the flexible display screen can be unfolded only in a fixed direction, which limits the application scenarios of the display device.
Disclosure of Invention
Therefore, the present invention provides a display device to solve the problem that the flexible display screen can only be unfolded in a fixed direction in a scroll type display device.
The present invention provides a display device including: the shell is provided with a containing groove; a winding shaft, one end of which is positioned in the accommodating groove and is rotatably connected with the shell, wherein the winding shaft is suitable for rotating around the connection part of the winding shaft and the shell so that the winding shaft is completely accommodated in the accommodating groove or is rotated out of the accommodating groove; around the flexible display screen of spool, the back orientation of flexible display screen the spool, the spool is suitable for with the center pin of spool rotates as the center, and then drives flexible display screen rolling or expansion.
Optionally, the flexible display screen has a stretching end and a tail end opposite to each other along a rolling or unfolding direction of the flexible display screen; the display device further includes: a tension member connected to a tension end of the flexible display screen.
Optionally, the stretching member is a pulling rod.
Optionally, the tail end of the flexible display screen is connected to the reel.
Optionally, the housing is shaped like a cylinder, and the side wall of the housing exposes the accommodating groove.
Optionally, one end of the reel is connected to the housing through a pin, and the reel is adapted to rotate around the pin.
Optionally, the stretching member has a first end and a second end opposite to each other in a direction along a central axis of the reel, and a distance from the first end of the stretching member to a connection point of the reel and the housing is smaller than a distance from the second end of the stretching member to a connection point of the reel and the housing; the display device further includes: the first end of the stretching component is suitable for being separated from the guide rail in the process that the reel rotates towards the accommodating groove, and the first end of the stretching component is also suitable for being connected with the guide rail in a sliding mode after the reel rotates out of the accommodating groove.
Optionally, the first end of the tension member is adapted to contact the rail during slidable connection with the rail.
Optionally, a slider is disposed on the guide rail, the slider is adapted to move along the guide rail, the first end of the stretching member is adapted to be separated from the guide rail and the slider in a process of rotating the winding shaft toward the accommodating groove, and the first end of the stretching member is adapted to be connected to the slider after the winding shaft is rotated out of the accommodating groove.
Optionally, the flexible display screen has a first side wall and a second side wall opposite to each other along the direction of the central axis of the scroll; when the first end of the tension member is in contact with the rail during slidable connection with the rail, the first sidewall of the rail is embedded in or separated from the rail; when the first end of the stretching component is connected with the sliding block after the reel rotates out of the accommodating groove, the first side wall is separated from the guide rail; after the flexible display screen is completely rolled up on the reel, the first side wall of the stretching component is separated from the guide rail.
Optionally, the display device further includes: the power supply module is arranged in the accommodating groove; the processor is arranged in the accommodating groove; one end of the main switch is connected with the power supply module, and the other end of the main switch is connected with the processor; the flexible display screen comprises a first flexible circuit board, and the first flexible circuit board is connected with the processor.
Optionally, the display device further includes: the contact switch is connected with the main switch in parallel, one end of the contact switch is connected with the processor, and the other end of the contact switch is connected with the power supply module; the contact switch is positioned on one side of the guide rail, which is far away from the connection part of the reel and the shell; when the first end of the stretching component contacts the contact switch, the contact switch is conducted; and when the first end of the stretching component is separated from the contact switch, the contact switch is disconnected.
Optionally, the display device further includes: a sensor disposed in the tensile member; a second flexible wiring board connecting the sensor and the processor, the sensor adapted to send a position signal of an unfolded region of the flexible display screen to the processor.
Optionally, the display device further includes: a tension member driving unit located in the accommodating groove; one end of the stretching component driving switch is connected with the stretching component driving unit, and the other end of the stretching component driving switch is connected with the processor; when the reel rotates out of the accommodating groove and the flexible display screen is unfolded, the stretching component drives the switch to be closed, the stretching driving component is connected with the stretching component, and the stretching component driving unit drives the stretching component to move along the direction of the guide rail away from the reel according to the signal of the processor; when the reel is rotated out of the accommodating groove and the flexible display screen surrounds the reel for rolling, the stretching part driving switch is disconnected, and the stretching driving part is separated from the stretching part.
Optionally, the display device further includes: a reel driving unit; the reel driving switch is connected with the reel driving unit at one end, and the processor is connected with the other end of the reel driving switch; the reel driving unit is suitable for driving the reel to rotate according to the signal of the processor; when the reel driving switch is closed, the flexible display screen winds the reel to be rolled.
Optionally, the display device further includes: the limiting part is positioned in the accommodating groove and positioned on one side of the guide rail, which is far away from the connection part of the reel and the shell; the spool is rolled out completely behind the holding tank, when tensile part removed the guide rail and is kept away from the one end of spool with the junction of casing, stop part is suitable for the joint tensile part.
The invention has the beneficial effects that:
1. the display device of the invention comprises a shell, wherein the shell is provided with an accommodating groove; the reel is suitable for rotating around the connection part of the reel and the shell so that the reel is completely accommodated in the accommodating groove or is rotated out of the accommodating groove; the flexible display screen surrounds the reel, and the reel is suitable for rotating around the central shaft of the reel, so that the flexible display screen is driven to be wound or unwound. Through the arrangement, the flexible display screen can be unfolded in two modes. One way is as follows: when the reel was accomodate in the holding tank, flexible display screen rotated around the center pin of reel, and then drove flexible display screen rolling or expand. The other mode is as follows: after the scroll rolls out of the accommodating groove, the flexible display screen rotates around the central shaft of the scroll, and then the flexible display screen is driven to be rolled or unfolded. The display device can enable the flexible display screen to be unfolded in two modes, and application scenes of the display device are richer.
2. According to the display device, the flexible display screen is provided with the stretching end and the tail end along the rolling or unfolding direction of the flexible display screen; the display device further includes: and the stretching component is connected with the stretching end of the flexible display screen. So that the flexible display screen can be unfolded by moving the stretching component away from the reel. Furthermore, the tail end of the flexible display screen is connected with the scroll, so that the flexible display screen can be prevented from being separated from the scroll when being unfolded to the limit state, and the damage to the display device can be avoided.
3. According to the display device, the guide rail is arranged in the accommodating groove, the stretching component moves along the guide rail in a mode that the first end of the stretching component is in contact with the guide rail in the process of being in slidable connection with the guide rail, and then the flexible display screen is driven to be unfolded along the extension direction of the guide rail; or through being provided with the slider on the guide rail, the slider removes along the guide rail, and the first end is connected with the slider after the spool is rolled out from holding the groove to the slider removes along the guide rail, drives tensile part and removes along the guide rail, and then drives the extending direction of flexible display screen edge guide rail and expand.
4. The display device of the invention, the flexible display screen is provided with a first side wall and a second side wall which are opposite along the direction of the central shaft of the scroll. When the first side wall is embedded into the guide rail in the process of rolling or unfolding under the driving of the reel, the flexible display screen can be unfolded more smoothly.
5. The display device of the present invention further includes: the power supply module is arranged in the accommodating groove; the processor is arranged in the accommodating groove; one end of the main switch is connected with the power supply module, and the other end of the main switch is connected with the processor; the flexible display screen comprises a first flexible circuit board, and the first flexible circuit board is connected with the processor. Switch on through the main switch for power module switches on with the treater, and then power module switches on for flexible display screen, realizes being connected through the electricity of power module with flexible display screen, makes flexible display screen lighted.
6. The display device of the present invention further includes: the contact switch is connected with the main switch in parallel, one end of the contact switch is connected with the processor, and the other end of the contact switch is connected with the power supply module; the contact switch is positioned on one side of the guide rail, which is far away from the connection part of the scroll and the shell; when the first end of the stretching component contacts the contact switch, the contact switch is conducted; when the first end of the tension member is separated from the contact switch, the contact switch is turned off. The first end of accessible tensile part and the contact of switch during the contact for power module switches on with the treater, and then power module is for flexible display screen circular telegram, makes flexible display screen lighted.
7. The display device of the present invention further includes: a sensor disposed in the tensile member; and the second flexible circuit board is connected with the sensor and the processor, and the sensor is suitable for sending a position signal of the unfolding area of the flexible display screen to the processor. According to the arrangement, the processor can control the display area of the flexible display screen according to the position signal sent by the sensor, so that the picture is displayed in the unfolded area of the flexible display screen, and the picture is not displayed in the unfolded area of the flexible display screen, so that the electric energy consumption of the flexible display screen during display can be saved.
8. According to the display device, the stretching component driving unit and the stretching component driving switch are arranged, after the scroll rolls out of the accommodating groove, the processor and the stretching component driving unit can be connected through closing of the stretching component driving switch, and the processor further controls the stretching component driving unit to move the stretching component, so that the flexible display screen is unfolded. For example, after the stretching component driving switch is closed, the stretching driving component is connected with the stretching component, and the stretching component driving unit drives the stretching component to be far away from the reel along the guide rail according to the signal of the processor so as to drive the flexible display screen to be unfolded; the stretching component drives the switch to be switched off, the stretching driving component is separated from the stretching component, and the flexible display screen stops unfolding.
9. According to the display device, the reel driving unit and the reel driving switch are arranged, so that the reel can be controlled to rotate by the reel driving switch, and the flexible display screen can be wound. For example, when the reel driving switch is closed, the reel driving unit drives the reel to rotate according to the signal of the processor, so as to drive the flexible display screen to be wound.
10. The display device of the present invention further includes: the limiting part is positioned in the accommodating groove and deviates from one side of the connection part of the reel and the shell. After the spool rotated out the holding tank completely, tensile part moved to the guide rail and kept away from when rolling up the one end of spool and the junction of casing, and spacing block is suitable for the tensile part of joint for tensile part's position is fixed, and the position after the flexible display screen expandes is stable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a display device;
FIG. 2 is a schematic view illustrating a moving range of a scroll of a display device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a flexible display screen of the display device according to an embodiment of the invention when unfolded;
FIG. 4 is a schematic view of a flexible display screen of a display device according to another embodiment of the present invention when unfolded;
fig. 5 is a diagram illustrating a connection relationship between a power module, a main switch, a touch switch, a processor, and a flexible display panel of a display device according to an embodiment of the invention.
Detailed Description
As shown in fig. 1, a display device includes:
the shell 1' is provided with a containing groove;
a reel 2 ', the reel 2' being located in the accommodating groove;
and the flexible display screen 3 ' surrounds the scroll 2 ', and the scroll 2 ' is suitable for rotating around the central shaft of the scroll 2 ' to further drive the flexible display screen 3 ' to be wound or unwound.
Further, the display device comprises a stretching member, in particular a pulling bar 4'.
In such a scroll type display device, the scroll 2 'is located in the housing 1' and the entire scroll 2 'has a fixed position in the housing 1', and the flexible display screen 3 'can only be unfolded from the inside of the accommodating groove to the outside of the accommodating groove, so that the flexible display screen 3' has a single unfolding mode and the display device has a single application scene.
The present invention therefore provides a display device comprising: the shell is provided with a containing groove; the end of the scroll is positioned in the accommodating groove and is rotatably connected with the shell, and the scroll is suitable for rotating around the connection part of the scroll and the shell so that the scroll is completely accommodated in the accommodating groove or is rotated out of the accommodating groove; around the flexible display screen of spool, the spool is suitable for and rotates around the center pin of spool, and then drives flexible display screen rolling or expand. The display device can enable the flexible display screen to be unfolded in two modes, and application scenes of the display device are richer.
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
Referring to fig. 2 to 5, a display device includes:
the device comprises a shell 1, wherein a containing groove is formed in the shell 1;
a reel 2, one end of the reel 2 is positioned in the accommodating groove and is rotatably connected with the shell 1, and the reel 2 is suitable for rotating around the connection part of the reel 2 and the shell 1 so that the reel 2 is completely accommodated in the accommodating groove or rotated out of the accommodating groove;
the flexible display screen 3 surrounds the reel 2, and the reel 2 is suitable for rotating around the central shaft of the reel 2, so that the flexible display screen 3 is driven to be wound or unwound.
In the display device of the embodiment, the flexible display screen can be unfolded in two ways. One way is as follows: when spool 2 accomodates in the holding tank, flexible display screen 3 rotates around the center pin of spool 2, and then drives flexible display screen 3 rolling or expansion. The other mode is as follows: when the scroll 2 is completely accommodated in the accommodating groove, the flexible display screen 3 is wound on the scroll 2 and accommodated in the accommodating groove; after the holding tank was rolled out to spool 2, flexible display screen 3 rotated around the center pin of spool 2, and then drove 3 rolling or the expansion of flexible display screen. The display device can enable the flexible display screen 3 to be unfolded in two modes, and application scenes of the display device are richer.
Further, the flexible display screen 3 has opposite stretching end and tail end along the rolling or unfolding direction of the flexible display screen 3; the display device further includes: and the stretching component 4 is connected with the stretching end of the flexible display screen 3.
In particular, the stretching member 4 may be a pulling bar.
Specifically, the tail end of the flexible display screen 3 can be connected with the reel 2.
Specifically, the housing 1 may be cylindrical, and the accommodating groove is exposed on the side wall of the housing 1.
Specifically, one end of the reel 2 may be connected to the housing 1 by a pin, and the reel 2 is adapted to rotate around a pin 7.
The display device of the embodiment can drive the flexible display screen 3 to be unfolded by moving the stretching component 4 in the direction away from the reel 2. Furthermore, the tail end of the flexible display screen 3 is connected with the scroll 2, so that the flexible display screen 3 can be prevented from being separated from the scroll 2 when being unfolded to the limit state, and the damage to the display device can be avoided.
Further, the tension member 4 has opposite first and second ends in a direction along the central axis of the spool 2, and a distance from the first end of the tension member 4 to a connection of the spool 2 and the housing 1 is smaller than a distance from the second end of the tension member 4 to a connection of the spool 2 and the housing 1.
The display device further includes: a guide rail 5 arranged in the receiving groove, the extending direction of the guide rail 5 being parallel to the extending direction of the receiving groove, the first end of the tension member 4 being adapted to be in a separated state from the guide rail 5 during rotation of the reeling shaft 2 towards the receiving groove, the first end of the tension member 4 being further adapted to be slidably connected with the guide rail 5 after the reeling shaft 2 is turned out of the receiving groove.
In a particular embodiment, the first end of the tension member 4 is adapted to be in contact with the rail 5 during slidable connection with the rail 5.
In another particular embodiment, the guide 5 is provided with a slider 6, the slider 6 being adapted to move along the guide 5, the first end of the tension member 4 being adapted to be in a disengaged condition from the guide 5 and the slider 6 during rotation of the reel 2 towards the receiving slot, the first end of the tension member 4 being adapted to be coupled to the slider 6 after the reel 2 has been rotated out of the receiving slot.
In the display device of the embodiment, the guide rail 5 is arranged in the accommodating groove, and the stretching part 4 moves along the guide rail 5 in a manner that the first end of the stretching part 4 is in contact with the guide rail 5 in the process of being slidably connected with the guide rail 5, so as to drive the flexible display screen 3 to be unfolded along the extension direction of the guide rail 5; or through being provided with slider 6 on the guide rail 5, slider 6 moves along the guide rail, the first end of tensile part 4 is at the mode that spool 2 is connected with slider 6 after taking out from holding the groove to slider 6 moves along guide rail 5, drives tensile part 4 and moves along guide rail 5, and then drives flexible display 3 and expandes along the extending direction of guide rail 5.
In the display device of the present embodiment, the flexible display 3 has a first side wall and a second side wall opposite to each other in a direction along the central axis of the winding shaft 2.
When the first end of the tension member 4 is in contact with the guide rail 5 during the slidable connection with the guide rail 5, the first sidewall of the flexible display screen 3 is embedded in the guide rail 5 or separated from the guide rail 5. When the first side wall of flexible display screen 3 was rolled up or when the in-process embedding guide rail 5 that expandes under flexible display screen 3 was driven by spool 2, flexible display screen 3's first side wall was restricted by guide rail 5, and the small-amplitude part of difficult wavy emergence is buckled, can make the more level and smooth that flexible display screen expandes.
When the first end of the tension member 4 is coupled to the slider 6 after the roll 2 is rotated out of the receiving groove, the first sidewall of the flexible display 3 is separated from the guide 5.
After the flexible display screen 3 is completely rolled up on the reel 2, the first side wall of the flexible display screen 3 is separated from the guide rail 5.
The display device of the present embodiment further includes: the power module 101 is arranged in the accommodating groove; a processor 102 disposed in the accommodating tank; and one end of the main switch 103 is connected with the power supply module 101, and the other end of the main switch 103 is connected with the processor 102.
The flexible display screen 3 comprises a first flexible wiring board, which is connected to the processor 102.
Switch on through main switch 103 for power module 101 switches on with treater 102, and then power module 101 gives flexible display screen 3 circular telegram, realizes being connected through the electricity of power module 101 with flexible display screen 3, makes flexible display screen 3 lighted.
The display device of the present embodiment further includes:
and the contact switch 104 is connected with the main switch 103 in parallel, one end of the contact switch 104 is connected with the processor 102, and the other end of the contact switch 104 is connected with the power supply module 101.
The contact switch 104 is located on the side of the rail 5 remote from the connection of the spool 2 to the housing 1.
When the first end of the tension member 4 contacts the touch switch 104, the touch switch 104 is turned on; when the first end of the tension member 4 is separated from the touch switch 104, the touch switch 104 is turned off.
By setting the contact switch 104: the power module 101 can be conducted with the processor 102 by the contact between the first end of the stretching member 4 and the touch switch 104, and then the power module 101 energizes the flexible display 3, so that the flexible display 3 is lighted.
The display device of the present embodiment further includes: a sensor provided in the tension member 4; a second flexible wiring board connecting the sensor and the processor 102, the sensor being adapted to send a position signal of the unrolled area of the flexible display 3 to the processor 102. By the arrangement, the processor can control the display area of the flexible display screen according to the position signal sent by the sensor, so that the picture is displayed in the unfolded area of the flexible display screen, and the picture is not displayed in the unfolded area of the flexible display screen, thereby saving the electric energy consumption of the flexible display screen during display.
The display device of the present embodiment further includes:
a tension member driving unit located in the accommodating groove;
and one end of the stretching component driving switch is connected with the stretching component driving unit, and the other end of the stretching component driving switch is connected with the processor 102.
When the reel 2 is rotated out of the accommodating groove and the flexible display screen 3 is unfolded, the stretching part driving switch is closed, the stretching part driving unit is connected with the stretching part 4, and the stretching part 4 driving unit drives the stretching part 4 to move along the guide rail 5 in the direction away from the reel 2 according to the signal of the processor 102.
When the stretching member driving switch is turned off after the reel 2 is rotated out of the accommodating groove and the flexible display screen 3 is wound around the reel 2, the stretching member driving unit is separated from the stretching member 4.
The display device of this embodiment, through tensile part drive unit and the setting of tensile part drive switch, after the spool rolled out the holding tank, can make treater and tensile part drive unit connect through the closure of tensile part 4 drive switch, the treater and then control the removal of tensile part drive unit to tensile part 4, realizes the expansion of flexible display screen. For example, after the stretching component driving switch is closed, the stretching component driving unit is connected with the stretching component 4, and the stretching component driving unit drives the stretching component 4 to be far away from the reel along the guide rail 5 according to the signal of the processor, so as to drive the flexible display screen to be unfolded; the stretching component driving switch is switched off, the stretching component driving unit is separated from the stretching component 4, and the flexible display screen stops unfolding.
The display device of the present embodiment further includes: a reel driving unit adapted to drive the reel 2 to rotate according to the signal of the processor 102; and one end of the reel driving switch is connected with the reel driving unit, and the other end of the reel driving switch is connected with the processor 102.
When the reel driving switch is closed, the flexible display screen 3 is wound around the reel 2.
The display device of this embodiment, through the setting of spool drive unit and spool drive switch, can realize realizing the rolling through the rotation of spool drive switch control spool 2, realization flexible display screen. For example, when the reel driving switch is closed, the reel driving unit drives the reel 2 to rotate according to the signal of the processor, so as to drive the flexible display screen to be wound.
The display device of the present embodiment further includes: and the limiting part is positioned in the accommodating groove and is positioned on one side of the guide rail 5, which is far away from the joint of the reel 2 and the shell 1.
After spool 2 completely rolled out the holding tank, tensile part 4 moves to guide rail 5 and when keeping away from the one end of spool 2 with the junction of casing 1, and spacing part is suitable for tensile part 4 of joint for tensile part 4's position is fixed, and the position after the flexible display screen expandes is stable.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (14)
1. A display device, comprising:
the shell is provided with a containing groove;
a winding shaft, one end of which is positioned in the accommodating groove and is rotatably connected with the shell, wherein the winding shaft is suitable for rotating around the connection part of the winding shaft and the shell so that the winding shaft is completely accommodated in the accommodating groove or is rotated out of the accommodating groove;
the flexible display screen surrounds the scroll, the back surface of the flexible display screen faces the scroll, and the scroll is suitable for rotating by taking the central shaft of the scroll as a center so as to drive the flexible display screen to be rolled or unfolded;
the flexible display screen is provided with a stretching end and a tail end which are opposite to each other along the rolling or unfolding direction of the flexible display screen; the display device further includes: the stretching component is connected with the stretching end of the flexible display screen;
the stretching component is provided with a first end and a second end which are opposite in the direction along the central axis of the reel, and the distance from the first end of the stretching component to the joint of the reel and the shell is smaller than the distance from the second end of the stretching component to the joint of the reel and the shell;
the display device further includes: the first end of the stretching component is suitable for being separated from the guide rail in the process that the reel rotates towards the accommodating groove, and the first end of the stretching component is also suitable for being connected with the guide rail in a sliding mode after the reel rotates out of the accommodating groove.
2. The display device according to claim 1,
the stretching component is a traction rod.
3. The display device according to claim 1,
the tail end of the flexible display screen is connected with the reel.
4. The display device according to claim 1,
the shape of casing is the cylinder, the lateral wall of casing exposes the holding tank.
5. The display device according to claim 1,
one end of the scroll is connected with the shell through a pin shaft, and the scroll is suitable for rotating around the pin shaft.
6. The display device according to claim 1,
the first end of the tension member is adapted to contact the rail during slidable connection with the rail.
7. The display device according to claim 1,
the guide rail is provided with a sliding block, the sliding block is suitable for moving along the guide rail, the first end of the stretching component is suitable for being separated from the guide rail and the sliding block in the process that the winding shaft rotates towards the accommodating groove, and the first end of the stretching component is suitable for being connected with the sliding block after the winding shaft rotates out of the accommodating groove.
8. The display device according to claim 7,
the flexible display screen is provided with a first side wall and a second side wall which are opposite in the direction of the central axis of the scroll;
when the first end of the stretching member is in contact with the guide rail in the process of being slidably connected with the guide rail, the first side wall of the flexible display screen is embedded into or separated from the guide rail;
when the first end of the stretching component is connected with the sliding block after the reel rotates out of the accommodating groove, the first side wall is separated from the guide rail;
after the flexible display screen is completely rolled up on the reel, the first end of the stretching component is separated from the guide rail.
9. The display device according to claim 1, further comprising:
the power supply module is arranged in the accommodating groove;
the processor is arranged in the accommodating groove;
one end of the main switch is connected with the power supply module, and the other end of the main switch is connected with the processor;
the flexible display screen comprises a first flexible circuit board, and the first flexible circuit board is connected with the processor.
10. The display device according to claim 9, further comprising:
the contact switch is connected with the main switch in parallel, one end of the contact switch is connected with the processor, and the other end of the contact switch is connected with the power supply module;
the contact switch is positioned on one side of the guide rail, which is far away from the connection part of the reel and the shell;
when the first end of the stretching component contacts the contact switch, the contact switch is conducted; when the first end of the stretching component is separated from the contact switch, the contact switch is disconnected.
11. The display device according to claim 9, further comprising:
a sensor disposed in the tensile member;
a second flexible wiring board connecting the sensor and the processor, the sensor adapted to send a position signal of an unfolded region of the flexible display screen to the processor.
12. The display device according to claim 9, further comprising:
a tension member driving unit located in the accommodating groove; the stretching component driving switch is connected with the stretching component driving unit at one end and connected with the processor at the other end;
when the reel rotates out of the accommodating groove and the flexible display screen is unfolded, the stretching part driving switch is closed, the stretching part driving unit is connected with the stretching part, and the stretching part driving unit drives the stretching part to move along the direction away from the reel along the guide rail according to the signal of the processor;
when the reel is rotated out of the accommodating groove and the flexible display screen winds the reel for rolling, the stretching part driving switch is disconnected, and the stretching part driving unit is separated from the stretching part.
13. The display device according to claim 9, further comprising:
a reel drive unit; the reel driving switch is connected with the reel driving unit at one end and connected with the processor at the other end;
the reel driving unit is suitable for driving the reel to rotate according to the signal of the processor;
when the reel driving switch is closed, the flexible display screen winds the reel to be rolled.
14. The display device according to claim 1, further comprising:
the limiting part is positioned in the accommodating groove and positioned on one side of the guide rail, which is far away from the connection part of the reel and the shell;
the spool is rolled out completely behind the holding tank, when tensile part removed the guide rail and is kept away from the one end of spool with the junction of casing, stop part is suitable for the joint tensile part.
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