CN112466213A - Display device - Google Patents
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- CN112466213A CN112466213A CN202011407755.5A CN202011407755A CN112466213A CN 112466213 A CN112466213 A CN 112466213A CN 202011407755 A CN202011407755 A CN 202011407755A CN 112466213 A CN112466213 A CN 112466213A
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- flexible display
- rolling
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- 238000005096 rolling process Methods 0.000 claims abstract description 104
- 230000008093 supporting effect Effects 0.000 claims abstract description 31
- 238000004804 winding Methods 0.000 claims description 50
- 239000011148 porous material Substances 0.000 claims description 9
- 230000020347 spindle assembly Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 7
- 238000010030 laminating Methods 0.000 description 4
- 206010040844 Skin exfoliation Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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- 238000000034 method 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 invention provides a display device which comprises a rotating shaft assembly, wherein the rotating shaft assembly comprises a plurality of display screen accommodating rotating shafts and a rolling supporting belt at intervals, and the rolling supporting belt surrounds the display screen accommodating rotating shafts and is in contact with the display screen accommodating rotating shafts; the flexible display screen surrounds the rotating shaft assembly, the back face of the flexible display screen faces the rotating shaft assembly, and when the flexible display screen is completely rolled, the flexible display screen is positioned on the surface of one side, back to the rotating shaft assembly, of the rolling supporting belt; the pivot subassembly is suitable for to drive the flexible display screen and accomodate the center pin rotation of pivot around a plurality of spaced display screens for flexible display screen rolling or expansion. Compare the unipolar rolling, the lateral slip volume of each rete in the flexible display screen is littleer, is difficult for taking place to peel off between the rete, can reduce the cracked possibility of screen body.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
The flexible display screen design is taken as the future development direction, and the curling performance is an important index of the flexible display screen. When the flexible display screen is coiled and stored, the radius of the scroll and the number of the coiled circles are always main influence factors of the stress of the flexible display screen. Curled flexible display screen is curling many times, the exhibition back, because the gluey material is to screen body edge extrusion deformation, when the spool diameter is littleer, then when the curling of flexible display screen, each rete atress will be big more, the number of turns of curling also can corresponding increase, the lateral slip volume increase of each rete in the flexible display screen, the risk greatly increased that takes place to peel off between the rete, serious can lead to the screen body fracture.
Disclosure of Invention
Therefore, the invention provides a display device, which aims to solve the problem that a film layer is easy to peel off after a curled flexible display screen is curled and flattened for multiple times.
The invention provides a display device which comprises a rotating shaft assembly, wherein the rotating shaft assembly comprises a plurality of display screen accommodating rotating shafts and winding supporting belts at intervals, and the winding supporting belts surround the display screen accommodating rotating shafts and are in contact with the display screen accommodating rotating shafts; the flexible display screen surrounds the rotating shaft assembly, the back face of the flexible display screen faces the rotating shaft assembly, and when the flexible display screen is completely rolled, the flexible display screen is positioned on one side surface of the rolling supporting belt, which faces away from the rotating shaft assembly; the pivot subassembly is suitable for to drive the flexible display screen centers on the center pin that the pivot was accomodate to a plurality of spaced display screens rotates for flexible display screen rolling or expansion.
Optionally, the display device further includes: the rolling is supported the area, the rolling supports the area and encircles pivot subassembly and with each the pivot contact is accomodate to the display screen, flexible display screen is located the rolling supports the area dorsad a side surface of pivot subassembly.
Optionally, the flexible display screen has a tail end and a stretching end opposite to each other along a rolling or unfolding direction of the flexible display screen, and the tail end is fixedly connected with the rolling support band.
Optionally, the central axes of the display screen storage rotating shafts are parallel to each other.
Optionally, the plurality of spaced display screen storage shafts include: the first display screen accommodating rotating shaft is in contact with the rolling supporting belt; the second display screen accommodating rotating shaft is in contact with the rolling supporting belt; the first display screen storage rotating shaft is suitable for being used as a driving shaft during rolling of the flexible display screen, and the second display screen storage rotating shaft is suitable for being used as a driven shaft during rolling of the flexible display screen.
Optionally, the radial dimension of the display screen accommodating rotating shaft passing through the central axis of the display screen accommodating rotating shaft is 8mm-14 mm.
Optionally, the shape of the cross section of the display screen accommodating rotating shaft perpendicular to the central axis of the display screen accommodating rotating shaft is circular.
Optionally, the pivot is accomodate to a plurality of spaced display screens only includes that first display screen accomodates pivot and second display screen and accomodates the pivot, first display screen accomodate pivot and second display screen accomodate the pivot at least both ends on the first direction all with the rolling support area contact, the first direction perpendicular to the center that the pivot was accomodate to first display screen with line between the center of pivot is accomodate to the second display screen, and the center pin that the pivot was accomodate to the first display screen of perpendicular to and the center pin that the pivot was accomodate to the second display screen.
Optionally, a distance between a central axis of the first display screen accommodating rotating shaft and a central axis of the second display screen accommodating rotating shaft is 3cm-8 cm.
Optionally, the display device further includes: a tension assembly, the tension assembly comprising: the stretching shell is fixedly connected with the stretching end of the flexible display screen; a drive unit adapted to drive the tension housing to move away from the spindle assembly.
Optionally, the stretching assembly further comprises: and the stretching support belt is positioned inside the stretching shell, a partial area of the stretching support belt is suitable for extending out of the stretching shell when the flexible display screen is unfolded, and the partial area of the stretching support belt extending out of the stretching shell is positioned on the back surface of the flexible display screen between the stretching shell and the rotating shaft assembly.
Optionally, the width of the stretching support band is greater than or equal to the width of the flexible display screen.
Optionally, the method further includes: the rotating shaft assembly is arranged in the rolling shell, a first hollow-out part is arranged on the top wall of the rolling shell, the front face of the flexible display screen is exposed by the first hollow-out part, and the first hollow-out part extends to the edge of the top wall of the rolling shell; the rolling shell faces the side wall of the stretching shell and is provided with a second hollow portion, the second hollow portion is communicated with the first hollow portion, and the flexible display screen is suitable for extending out of the rolling shell from the second hollow portion.
Optionally, one end of the stretching support belt extending out of the stretching shell is fixedly connected with the side wall of the rolling shell facing the stretching shell.
Optionally, the stretching support belt is provided with a channel arranged along the extending direction of the stretching support belt; one side surface of the stretching support belt is provided with a plurality of air holes which are communicated with the channels; one side surface of the stretching support belt with the air holes is suitable for facing the back surface of the flexible display screen when the stretching support belt is stretched out of the stretching shell; the stretch assembly further comprises: and the air exhaust part is positioned in the stretching shell and is communicated with the channels of the stretching support belt.
Optionally, the aperture of the air holes is 0.5mm-1mm, and the distance between adjacent air holes is 4mm-6 mm.
Optionally, a support belt winding part is further arranged in the stretching shell, and the support belt winding part is suitable for winding the stretching support belt; the stretching support belt is provided with a first end and a second end which are opposite in the extending direction of the stretching support belt, and the first end is suitable for fixedly connecting the side wall of the rolling shell facing the stretching shell.
Optionally, the support belt winding part is a support belt winding rotating shaft, and the support belt winding rotating shaft is fixedly connected with the second end of the stretching support belt.
Optionally, the air exhaust part is arranged in the supporting belt winding part.
Optionally, the display device further includes: and the locking component is suitable for limiting the distance between the rolling shell and the stretching shell to be smaller than or equal to a preset distance after the rolling of the flexible display screen is finished.
Optionally, the locking component is arranged on the side wall of the winding shell facing one side of the stretching shell, and the locking component is suitable for being clamped with the side wall of the stretching shell facing one side of the winding shell after the flexible display screen is wound; or, the locking part set up in tensile casing orientation the lateral wall of rolling casing one side, the locking part is suitable for when flexible display screen rolling completion back joint the rolling casing orientation the lateral wall of tensile casing one side.
The invention has the beneficial effects that:
1. according to the display device provided by the invention, the flexible display screen can be rolled through the rotating shaft assembly comprising the plurality of display screen storage rotating shafts, compared with single-shaft rolling, under the condition that the flexible display screen is completely rolled, only the part of the flexible display screen near the display screen storage rolling shaft is in a rolling state, and the part of the flexible display screen between the display screen storage rotating shafts is in a flattening state; therefore, the number of curling turns required by winding the flexible display screen is reduced, so that the lateral slippage of each film layer in the flexible display screen is smaller, the peeling between the film layers is not easy to occur, and the possibility of breakage of the screen body is reduced.
2. According to the display device provided by the invention, the rotating shaft component also comprises the winding supporting belt surrounding the rotating shaft component, when the flexible display screen is completely wound or partially wound, the flexible display screen can be supported, the flexible display screen is prevented from being greatly deformed in a direction vertical to the screen body, and the operation, such as touch operation, on the surface of the flexible display screen body is facilitated. Simultaneously because the rolling of independent setting supports the area, flexible display screen need not to provide the support effect through self thickness, therefore the thickness of self can reduce in the design, and the power that the side direction that each rete of the portion of curling received when the rolling of thinner flexible display screen was slided is littleer, is more difficult for taking place to peel off. Furthermore, the flexible display screen is fixedly connected with the winding support belt along the tail end of the extension direction, so that the flexible display screen can be prevented from being excessively stretched to separate from the rotating shaft assembly.
3. According to the display device provided by the invention, the plurality of display screen accommodating rotating shafts comprise a driving first display screen accommodating scroll and a driven second display screen accommodating scroll. When the display screen is rolled, the flexible display screen is driven by the driving shaft to roll around the rotating shaft component. Further, the radial dimension of the display screen accommodating rotating shaft passing through the central axis of the display screen accommodating rotating shaft can be 8mm-14 mm. In the range, the volume occupied by the flexible display screen and the number of curled turns can be well balanced after the flexible display screen is rolled. And, the display screen accomodates the pivot and is in the perpendicular to the cross-section of the center pin that the pivot was accomodate to the display screen can be for circular, and the shared space of circular cross-section's pivot is little, is favorable to the space of display device inner part to arrange the design.
4. According to the display device provided by the invention, the plurality of display screen accommodating rotating shafts only comprise the first display screen accommodating rotating shaft and the second display screen accommodating rotating shaft, and the first display screen accommodating rotating shaft and the second display screen accommodating rotating shaft are at least contacted with the winding support belt at two ends in the first direction, wherein the first direction is vertical to a connecting line between the center of the first display screen accommodating rotating shaft and the center of the second display screen accommodating rotating shaft, and is vertical to a central shaft of the first display screen accommodating rotating shaft and a central shaft of the second display screen accommodating rotating shaft. The pivot subassembly that sets up like this can constitute the waist circular by the rolling support area for when the rolling of flexible display screen is accomplished, flexible display screen both ends are taut, and flexible display screen is located two display screens and accomodates the partial laminating rolling support area between the pivot, and is the exhibition flat state, can reduce each rete because of curling the side direction that the side direction sliding force takes place on the whole by a wide margin, reduces the risk that takes place to peel off between the rete. Furthermore, the distance between the first display screen storage rotating shaft and the second display screen storage rotating shaft can be 3cm-8 cm. The first display screen is accomodate pivot and second display screen and is accomodate the size of the oval shape that the rolling was supported and is supported area formation in the interval decision between the pivot, and then size and the number of turns that curl when deciding flexible display screen rolling state influence display device's whole size. The distance between the flexible display screen and the winding drum is in the range of 3cm-8cm, so that the volume of the flexible display screen and the number of winding turns can be well balanced when the flexible display screen is wound.
5. The display device provided by the invention further comprises a stretching assembly, wherein the stretching assembly comprises a stretching shell and a driving unit, the stretching shell is connected with the stretching end of the flexible display screen in the extending direction, and the driving unit can drive the stretching shell to be far away from the rotating shaft assembly. The stretching shell is driven by the driving unit to be far away from the rotating shaft assembly, and the flexible display screen can be unfolded.
6. According to the display device provided by the invention, the stretching assembly further comprises a stretching support belt, the stretching support belt can provide support force for the part, located between the rotating shaft assembly and the stretching shell, of the flexible display screen in the direction vertical to the flexible display screen when the stretching shell pulls the flexible display screen to be unfolded, and the rolling support belt provides support for the flexible display screen, so that the flexible display screen is prevented from being greatly deformed in the direction vertical to the screen body, and operation such as touch operation on the surface of the flexible display screen is facilitated. Simultaneously because the rolling of independent setting supports the area, flexible display screen need not to provide the support effect through self thickness, therefore the thickness of self can reduce in the design, and the power that the side direction that each rete of the portion of curling received when the rolling of thinner flexible display screen was slided is littleer, is more difficult for taking place to peel off. Further, the tensile support band may be greater than or equal to the width of the flexible display screen. The stretching support belt with the width larger than or equal to that of the flexible display screen can provide sufficient support effect and is beneficial to the operation in the direction vertical to the display screen.
7. According to the display device provided by the invention, the rotating shaft assembly is arranged in the rolling shell, the flexible display screen can be rolled in the rolling shell, and the flexible display screen is not easy to be contacted by external force to cause friction damage during rolling. Meanwhile, the winding shell is provided with a first hollow-out part and a second hollow-out part which are communicated, and the front surface of the flexible display screen is exposed by the first hollow-out part, so that the display function of the flexible display screen can be still realized when the flexible display screen is wound; the second hollow portion provides the export of expanding for flexible display screen, simultaneously because first hollow portion and second hollow portion intercommunication for the flexible display screen that expands out from second hollow portion openly does not shelter from, and the display screen can not receive and shelter from. Furthermore, the one end that tensile support area stretches out tensile casing can be fixed connection on the lateral wall of rolling casing orientation tensile casing one side for when tensile casing pulling flexible display screen expanded, the rolling casing also pulls tensile support area and expands, and one-step completion need not separately to carry out these two steps of expansion of the expansion of flexible display screen and tensile support area.
8. The invention provides a display device, wherein a channel along the extending direction of a stretching support belt is arranged in the stretching support belt; one side surface of the stretching support belt is provided with a plurality of air holes which are communicated with the channels. The stretch assembly further comprises: and the air exhaust part is positioned in the stretching shell and is communicated with the channels of the stretching support belt. Make tensile supporting area can bleed air through the part of bleeding like this and adsorb flexible display screen in the surface of tensile supporting area, can make tensile supporting area and the better laminating of flexible display screen, avoid taking place the displacement on the horizontal direction, influence the supporting effect. And the flexible display screen is more smooth when unfolded, and the display effect is good. The pore diameter of the air holes can be 0.5mm-1mm, and the space between the air holes can be 4mm-6 mm. The pore size and spacing arrangement of the pores within the range provides a balance between providing suction and ensuring the support effect of the tensile support band.
9. According to the display device provided by the invention, the stretching support belt can be wound in the stretching shell through the support belt winding part, for example, the stretching support belt is wound in the stretching shell through the support belt winding rotating shaft, so that the space in the stretching shell can be saved, and a larger selection space is provided for the length size of the stretching support belt; furthermore, the air exhaust part can be arranged in the supporting belt winding part, so that the space in the stretching shell is further saved.
10. The display device provided by the invention can also comprise a locking component which provides a locking function for the stretching shell and the rolling shell after the rolling of the flexible display screen is finished, so that the stretching shell and the rolling shell can not be separated due to accidents such as collision or falling, and the damage of the flexible display screen due to the accidental unfolding of the flexible display screen due to external force is avoided.
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 structural diagram of a display device according to an embodiment of the present invention when a flexible display screen is rolled;
fig. 2 is a schematic structural diagram of a display device according to an embodiment of the invention when a flexible display screen is unfolded;
fig. 3 is a schematic structural diagram of a winding housing according to an embodiment of the present invention;
fig. 4 is a partial schematic view of one side surface of a tensile support tape of a display device according to an embodiment of the present invention.
Detailed Description
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. 1 to 4, the present embodiment provides a display device including:
the rotating shaft assembly comprises a plurality of display screen accommodating rotating shafts 221 and winding support belts 222 which are arranged at intervals, and the winding support belts 222 surround the plurality of display screen accommodating rotating shafts 221 and are in contact with the display screen accommodating rotating shafts 222; the figure shows an example in which only two display screens accommodate the rotation shaft 221. The number of the display screen accommodating shafts 221 arranged at intervals may be more than two.
The flexible display screen 210 surrounds the rotating shaft assembly, the back surface of the flexible display screen 210 faces the rotating shaft assembly, and when the flexible display screen is completely rolled, the flexible display screen is positioned on the surface of one side, back to the rotating shaft assembly, of the rolling supporting belt; the pivot subassembly is suitable for to drive flexible display screen 210 and accomodate the center pin rotation of pivot 221 around a plurality of spaced display screens for flexible display screen 210 rolling or expansion.
In the display device of this embodiment, the flexible display screen 210 can be rolled up by a rotating shaft assembly including a plurality of display screen storage rotating shafts 221, and compared with single-shaft rolling, when the flexible display screen 210 is completely rolled up, only a part of the flexible display screen 210 near the display screen storage rotating shafts is in a rolled state, and a part of the flexible display screen 210 between the display screen storage rolling shafts 221 is in a flattened state; the number of curling turns required for winding the flexible display screen 210 is reduced, so that the lateral slippage of each film layer in the flexible display screen 210 is smaller, the peeling between the film layers is not easy to occur, and the possibility of breaking the screen body is reduced.
Furthermore, the central axes of the display screen accommodating rotating shafts can be parallel to each other. Further, the flexible display screen 210 has opposite tail ends and stretching ends along the rolling or unrolling direction of the display screen, and the tail ends can be fixedly connected with the rolling support bands 222.
When the flexible display screen 210 is completely or partially rolled, the rolling support band 222 provides support for the flexible display screen 210, so that the flexible display screen 210 is prevented from being greatly deformed in a direction perpendicular to the screen body, and operation, such as touch operation, is facilitated on the surface of the flexible display screen 210. Simultaneously because set up the rolling alone and support the area, flexible display screen 210 need not to provide the support effect through self thickness, therefore the thickness of self can reduce in the design, and the power of the lateral slip that each rete of the portion of curling received is littleer when the rolling of thinner flexible display screen 210, and the more difficult emergence is peeled off. Further, the tail end of the flexible display screen 210 along the extension direction is fixedly connected with the winding support belt 221, so that the flexible display screen 210 can be prevented from being separated from the rotating shaft assembly through overstretching.
The display device of this embodiment, a plurality of display screens accomodate pivot 221 and include: the first display screen accommodating rotating shaft 2211, wherein the first display screen accommodating rotating shaft 2211 contacts the rolling support belt 222; the second display screen accommodating rotating shaft 2212, and the second display screen accommodating rotating shaft 2212 contacts the rolling support belt 222; when the flexible display screen 210 is rolled, the first display screen is accommodated with the rotating shaft 2211 as a driving shaft, and the second display screen is accommodated with the rotating shaft 2212 as a driven shaft. Of course, those skilled in the art can understand that which display screen stores the rotating shaft as the driving shaft and which display screen stores the rotating shaft as the driven shaft is not fixed, and can be selected according to actual needs to ensure that at least one driving shaft is provided, and the rest can be driven shafts. Therefore, when the display screen is rolled, the flexible display screen is driven by the driving shaft to roll around the rotating shaft component.
Further, the radial dimension of the display screen receiving rotation shaft 221 passing through the central axis of the display screen receiving rotation shaft 221 may be 8mm to 14 mm. If the size is too large, the volume of the flexible display screen 210 is too large when the flexible display screen is completely rolled, and the design of the whole size of the display device is affected; if the winding number is too small, the number of winding turns is too large when the flexible display screen 210 is completely wound, so that the lateral slip of each film layer is increased, and the risk of peeling each film layer is increased. Within this range, the flexible display 210 can be well balanced between the volume of the roll and the number of turns of the roll.
In addition, the display screen receiving rotation shaft 221 may have a circular shape in a cross section perpendicular to a central axis of the display screen receiving rotation shaft 221. When the flexible display screen is completely rolled, the force received by the curled part of the flexible display screen is smaller than that of the flexible display screen in other shapes, so that the damage probability of the flexible display screen is smaller.
In the display device of this embodiment, the plurality of display screen storage rotating shafts 221 may only include the first display screen storage rotating shaft 2211 and the second display screen storage rotating shaft 2212 (as shown in fig. 1 and fig. 2), both ends of the first display screen storage rotating shaft 2211 and the second display screen storage rotating shaft 2212 at least in the first direction X are in contact with the rolling support belt 222, the first direction X is perpendicular to a connecting line between the center of the first display screen storage rotating shaft 2211 and the center of the second display screen storage rotating shaft 2212, and is perpendicular to a central axis of the first display screen storage rotating shaft and a central axis of the second display screen storage rotating shaft. The pivot subassembly that sets up like this can constitute the waist circular by the rolling support area 222 for when the rolling of flexible display screen 210 is accomplished, flexible display screen 210 both ends are taut, and flexible display screen 210 is located two partial laminating rolling support areas 222 that the pivot 221 between was accomodate to the display screen, and is the exhibition flat state, can reduce each rete because of curling the side direction that the side direction glide takes place that receives the side direction glide power on the whole by a wide margin, reduces the risk that takes place to peel off between the rete.
Further, a distance between the central axis of the first display screen accommodating rotation shaft 2211 and the central axis of the second display screen accommodating rotation shaft 2212 may be 3cm to 8 cm. The distance between the central axis of the first display screen accommodating shaft 2211 and the central axis of the second display screen accommodating shaft 2212 determines the size of the oval formed by the winding support belt 222, and further determines the size and the number of winding turns of the flexible display screen 210 in the winding state, thereby affecting the overall size of the display device. The distance between the flexible display screen and the winding drum is within the range of 3cm-8cm, so that the occupied volume of the flexible display screen and the number of winding turns can be well balanced.
The display device of the present embodiment may further include: a tension assembly, the tension assembly comprising: the stretching shell 240 is fixedly connected with the stretching end of the flexible display screen 210; a driving unit (not shown) adapted to drive the stretching housing 240 to move away from the rotation shaft assembly. Specifically, the tension housing may be adapted to approach or move away from the pivot assembly in a direction parallel to a line between the centers of the first display screen receiving pivot 2211 and the second display screen receiving pivot 2212. Therefore, the stretching shell 240 can be driven by the driving unit to move away from the rotating shaft assembly, and the flexible display screen 210 can be unfolded.
Further, the stretching assembly may further include: a tensile support band 250 located inside the tensile housing 240, a partial area of the tensile support band 250 adapted to extend out of the tensile housing 240 when the flexible display screen 210 is unfolded, and a partial area of the tensile support band 250 extending out of the tensile housing 240 is located at the rear side of the flexible display screen 210 between the tensile housing 240 and the hinge assembly. Further, the width of the stretching support band 250 may be greater than or equal to the width of the flexible display screen 210. The stretching support bands 250 can provide a supporting force for a portion of the flexible display screen 210 between the rotating shaft assembly and the stretching housing 240 in a direction perpendicular to the flexible display screen 210 when the stretching housing 240 pulls the flexible display screen 210 to unfold, and the stretching support bands 250 provide a support for the flexible display screen 210, so that the flexible display screen 210 is prevented from being deformed in a direction perpendicular to the flexible display screen, and operations such as touch operations can be performed on the surface of the flexible display screen 210. Simultaneously because the rolling of independent setting supports the area, flexible display screen 210 need not to provide the support effect through self thickness, therefore the thickness of self can reduce in the design, and the power of the lateral slip that each rete of the portion of curling received is littleer when the rolling of thinner flexible display screen 210, and the more difficult emergence is peeled off. In addition, the stretching support band 250 having a width greater than or equal to that of the flexible display screen may provide a sufficient supporting effect to facilitate the operation in the vertical direction of the display screen.
The display device of the present embodiment may further include: the rotating shaft assembly is arranged in the rolling shell 230, the top wall of the rolling shell 230 is provided with a first hollow-out portion 231, the front surface of the flexible display screen 210 is exposed by the first hollow-out portion 231, and the first hollow-out portion 231 extends to the edge of the top wall of the rolling shell 230; the side wall of the rolling housing 230 facing the stretching housing 240 has a second hollow portion 232, the second hollow portion 232 is communicated with the first hollow portion 231, and the flexible display screen 210 is adapted to extend out of the rolling housing 230 from the second hollow portion 232 (see fig. 3).
The pivot subassembly sets up in rolling shell 230, and flexible display screen 210 can be rolled up in rolling shell 230, and flexible display screen 210 is difficult for receiving external force contact when rolling and takes place the friction damage. Meanwhile, the winding shell 230 is provided with a first hollow-out portion and a second hollow-out portion which are communicated with each other, the first hollow-out portion exposes the front face of the flexible display screen 210, and the flexible display screen 210 can still achieve a display function when being wound. The second hollowed-out portion may provide an unfolded exit for the flexible display screen 210. Meanwhile, the first hollow-out portion and the second hollow-out portion are communicated, so that the front surface of the flexible display screen 210 expanded out from the second hollow-out portion is not shielded, and a display picture cannot be shielded.
Further, one end of the stretching support band 250 extending out of the stretching housing 240 may be fixedly connected to a side wall of the rolling housing 230 facing to the stretching housing 240, so that the rolling housing 230 also pulls the stretching support band 250 to be spread while the stretching housing 240 pulls the flexible display screen 210 to be spread, which is completed in one step without separately performing two steps of spreading the flexible display screen 210 and spreading the stretching support band 250.
In the display device of the present embodiment, the tensile support band 250 may have a passage (not shown) therein along the extending direction of the tensile support band 250; one side surface of the tensile support band 250 has a plurality of air holes 251, and the air holes 251 are communicated with the channels; the stretching assembly may further include: a suction member (not shown) located within the elongated housing 240 and communicating with the channels of the elongated support strip 250. The one side surface of the stretching support band 250 having the air holes 251 faces a portion of the flexible display screen between the stretching housing 240 and the winding housing 260 when being stretched out of the stretching housing 240. Make tensile supporting area bleed through the part of bleeding like this, adsorb flexible display screen in tensile supporting area surface, can make tensile supporting area and the better laminating of flexible display screen, avoid taking place the displacement on the horizontal direction, influence supporting effect. And the flexible display screen is more smooth when unfolded, and the display effect is good.
Further, the aperture of the air holes 251 may be 0.5mm to 1mm, and the interval between the air holes 251 may be 4mm to 6 mm. If the diameter of the pores 251 is too large or the distance between the pores 251 is too small, the surface area of the tensile support band providing support is reduced, and the support effect is reduced; the adsorption force is insufficient due to the undersize pore diameter of the air holes 251 or the oversize space between the air holes 251; the pore diameter and the interval arrangement of the pores 251 within this range can achieve a balance between providing the suction force and securing the supporting effect of the tensile support band.
The display device of this embodiment, the tensile housing 240 may further have a support band rolling member disposed therein, and the support band rolling member is suitable for rolling the tensile support band 250. The stretch support bands 250 have opposite first and second ends in an extending direction of the stretch support bands 250, the first ends being adapted to fixedly couple the side walls of the take-up housing 240 toward the stretch housing 230. Specifically, the support belt take-up member may be a support belt accommodating rotating shaft 260, and the support belt accommodating rotating shaft is fixedly connected to the second end of the stretching support belt 250. The tensile support bands 250 may be wound in the tensile housing 240 by a support band winding member; for example, the stretching support band 250 can be wound in the stretching housing 240 by the support band receiving shaft 260, which can save the space in the stretching housing 240 and provide a larger selection space for the length dimension of the stretching support band 250. Further, the air exhaust part may be disposed in the support band rolling part to further save the space in the tension housing 240.
The display device provided by the invention further comprises a locking component 270, and the locking component 270 is suitable for limiting the distance between the rolling shell 260 and the stretching shell 240 to be smaller than or equal to a preset distance after the flexible display screen is rolled.
Specifically, the locking component may be disposed on a side wall of the rolling housing 260 facing the stretching housing 240, and when a distance between the rolling housing 260 and the stretching housing 240 is less than or equal to a predetermined distance, the locking component 270 is engaged with the side wall of the stretching housing 240 facing the rolling housing 260 (as shown in fig. 1 and fig. 2); alternatively, the locking member 270 is disposed on a side wall of the stretching housing 240 facing the winding housing 260, and when the distance between the stretching housing 240 and the winding housing 260 is smaller than or equal to a predetermined distance, the locking member 270 is engaged with the side wall of the winding housing 260 facing the stretching housing 240.
Locking part 270 provides the locking function for tensile casing 240 and rolling casing 230 after flexible display screen 210 rolling is accomplished, makes tensile casing 240 and rolling casing 230 can not take place to separate because of unexpected circumstances such as collision or drop, avoids the flexible display screen to expand because of the external force accident and cause the damage.
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 (10)
1. A display device, comprising:
the rotating shaft assembly comprises a plurality of display screen accommodating rotating shafts and winding supporting belts which are arranged at intervals, and the winding supporting belts surround the display screen accommodating rotating shafts and are in contact with the display screen accommodating rotating shafts;
the flexible display screen surrounds the rotating shaft assembly, the back face of the flexible display screen faces the rotating shaft assembly, and when the flexible display screen is completely rolled, the flexible display screen is positioned on one side surface of the rolling supporting belt, which faces away from the rotating shaft assembly; the rotating shaft component is suitable for driving the flexible display screen to rotate around the rotating direction of the rotating shaft component, so that the flexible display screen is rolled or unfolded.
2. The display device according to claim 1,
the flexible display screen is provided with a tail end and a stretching end which are opposite to each other along the rolling or unfolding direction of the flexible display screen, and the tail end is fixedly connected with the rolling supporting belt;
preferably, the central axes of the display screen accommodating rotating shafts are parallel to each other.
3. The display device according to claim 2,
the pivot is accomodate to the display screen of a plurality of intervals includes: the first display screen accommodating rotating shaft is in contact with the rolling supporting belt; the second display screen accommodating rotating shaft is in contact with the rolling supporting belt; the first display screen accommodating rotating shaft is suitable for being used as a driving shaft when the flexible display screen is rolled, and the second display screen accommodating rotating shaft is suitable for being used as a driven shaft when the flexible display screen is rolled;
preferably, the radial dimension of the display screen accommodating rotating shaft passing through the central shaft of the display screen accommodating rotating shaft is 8-14 mm;
preferably, the display screen accommodating rotation shaft has a circular shape in a cross section perpendicular to a central axis of the display screen accommodating rotation shaft.
4. The display device according to claim 3,
the plurality of spaced display screen accommodating rotating shafts only comprise a first display screen accommodating rotating shaft and a second display screen accommodating rotating shaft, at least two ends of the first display screen accommodating rotating shaft and the second display screen accommodating rotating shaft in a first direction are in contact with the winding support belt, the first direction is perpendicular to a connecting line between the center of the first display screen accommodating rotating shaft and the center of the second display screen accommodating rotating shaft, and is perpendicular to a central axis of the first display screen accommodating rotating shaft and a central axis of the second display screen accommodating rotating shaft;
preferably, the distance between the central axis of the first display screen accommodating rotating shaft and the central axis of the second display screen accommodating rotating shaft is 3cm-8 cm.
5. The display device according to claim 2, further comprising: a tension assembly, the tension assembly comprising: the stretching shell is fixedly connected with the stretching end of the flexible display screen; a drive unit adapted to drive the tension housing to move away from the spindle assembly.
6. The display device of claim 5, wherein the stretching assembly further comprises: the stretching support belt is positioned inside the stretching shell, a partial area of the stretching support belt is suitable for extending out of the stretching shell when the flexible display screen is unfolded, and the partial area of the stretching support belt extending out of the stretching shell is positioned on the back surface of the flexible display screen between the stretching shell and the rotating shaft assembly;
preferably, the width of the stretching support band is greater than or equal to the width of the flexible display screen.
7. The display device according to claim 6,
further comprising: the rotating shaft assembly is arranged in the rolling shell, a first hollow-out part is arranged on the top wall of the rolling shell, the front face of the flexible display screen is exposed by the first hollow-out part, and the first hollow-out part extends to the edge of the top wall of the rolling shell; the side wall of the rolling shell facing the stretching shell is provided with a second hollowed-out part, the second hollowed-out part is communicated with the first hollowed-out part, and the flexible display screen is suitable for extending out of the rolling shell from the second hollowed-out part;
preferably, one end of the stretching support belt extending out of the stretching shell is fixedly connected with the side wall of the rolling shell facing the stretching shell.
8. The display device according to claim 6,
the stretching support belt is provided with a channel arranged along the extending direction of the stretching support belt; one side surface of the stretching support belt is provided with a plurality of air holes which are communicated with the channels; one side surface of the stretching support belt with the air holes is suitable for facing the back surface of the flexible display screen when the stretching support belt is stretched out of the stretching shell;
the stretch assembly further comprises: the air exhaust part is positioned in the stretching shell and is communicated with the channel of the stretching support belt;
preferably, the pore diameter of the air holes is 0.5mm-1mm, and the distance between the adjacent air holes is 4mm-6 mm.
9. The display device according to claim 7,
a supporting belt winding part is further arranged in the stretching shell and is suitable for winding the stretching supporting belt; the stretching support belt is provided with a first end and a second end which are opposite in the extending direction of the stretching support belt, and the first end is suitable for fixedly connecting the side wall of the rolling shell facing the stretching shell;
preferably, the support belt winding part is a support belt winding rotating shaft, and the support belt winding rotating shaft is fixedly connected with the second end of the stretching support belt;
preferably, the suction member is provided inside the support tape winding member.
10. The display device according to claim 7, further comprising:
the locking component is suitable for limiting the distance between the rolling shell and the stretching shell to be smaller than or equal to a preset distance after the flexible display screen is rolled;
preferably, the locking part is arranged on the side wall of the winding shell facing one side of the stretching shell, and the locking part is suitable for being clamped with the side wall of the stretching shell facing one side of the winding shell after the flexible display screen is wound;
or, the locking part set up in tensile casing orientation the lateral wall of rolling casing one side, the locking part is suitable for when flexible display screen rolling completion back joint the rolling casing orientation the lateral wall of tensile casing one side.
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