CN113808491A - Display device - Google Patents
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- CN113808491A CN113808491A CN202111138331.8A CN202111138331A CN113808491A CN 113808491 A CN113808491 A CN 113808491A CN 202111138331 A CN202111138331 A CN 202111138331A CN 113808491 A CN113808491 A CN 113808491A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 64
- 230000033001 locomotion Effects 0.000 claims abstract description 39
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 22
- 230000000694 effects Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000003466 welding 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 application discloses display device relates to and shows technical field, includes: the flexible display panel comprises a flattening state and a rolling state; the furling assembly comprises a rotating shaft, a gear and rack transmission mechanism gear and a motion transmission assembly for connecting the rotating shaft and the gear and rack transmission mechanism gear; the rotating shaft is fixedly connected with the flexible display panel and used for rolling up the flexible display panel; the gear of the gear rack transmission mechanism comprises a rack, the extending direction of the rack is parallel to the extending direction of the rotating shaft, and the rotation of the rotating shaft is converted into linear transmission of the rack through the motion transmission assembly; the furling assembly is positioned in the frame, and the inner wall of the frame is provided with a limiting block; when the flexible display panel is in a flattening state, the rack is in contact with the limiting block. This application adopts rack and pinion drive mechanism's mode, and the spacing of stopper is deuterogamied, can effectively avoid the condition of flexible display panel overstretching.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display device.
Background
As the flexible display technology becomes mature, a display device with a folding function (such as a folding mobile phone, a folding tablet or a folding computer) will be a big trend in the future; the display portion of these display devices having a folding function is foldable. Compared with the traditional display device, the display device with the folding function can realize the switching of the physical size of the display device, and the use experience of a user is greatly improved.
At present, a display device with a folding function generally includes a flexible display panel, and the display panel with better flexibility can be bent or rolled in the display device; however, the conventional flexible display panel is easily damaged due to excessive pulling of the screen from a rolled state to a flattened state, and the display effect of the display panel is affected.
Disclosure of Invention
In view of this, this application provides a display device, adopts rack and pinion drive mechanism's mode, and the spacing of stopper is mated again, can effectively avoid the condition of flexible display panel overstretching.
The application has the following technical scheme:
in a first aspect, the present application provides a display device comprising:
a flexible display panel comprising a flattened state and a rolled state;
the furling assembly comprises a rotating shaft, a gear and rack transmission mechanism gear and a motion transmission assembly for connecting the rotating shaft and the gear and rack transmission mechanism gear; the rotating shaft is fixedly connected with the flexible display panel and used for rolling up the flexible display panel; the gear of the gear rack transmission mechanism comprises a rack, the extending direction of the rack is parallel to the extending direction of the rotating shaft, and the rotation of the rotating shaft is converted into linear transmission of the rack through the motion transmission assembly;
the furling assembly is positioned in the frame, and the inner wall of the frame is provided with a limiting block; when the flexible display panel is in a flattening state, the rack is in contact with the limiting block.
Compared with the prior art, the display device provided by the invention at least realizes the following beneficial effects:
according to the display device provided by the application, the rotating shaft, the gear rack transmission mechanism and the motion transmission assembly are arranged, and the rotation of the rotating shaft is converted into the linear motion of the rack in the gear rack transmission mechanism through the motion transmission assembly; in addition, the rack is also provided with a frame, the inner wall of the frame is provided with a limiting block, and the limiting block is used for limiting the linear motion of the rack and further can control the unlimited rotation of the rotating shaft; the frame is the cavity structure, be provided with the roll-up subassembly in the cavity, be provided with the stopper on the inner wall of cavity, be in under the complete exhibition flat state at flexible display panel, the rack contacts with the stopper, at this moment, the stopper can block the rack continuation motion, indirectly, rack stop motion, pivot stall, so, can prevent that flexible display panel from leading to the fact the phenomenon of excessive stretching when going flat state by the crimping state, avoid flexible display panel to damage, guarantee flexible display panel's display effect, extension flexible display panel's life.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic diagram of a display device according to the prior art;
fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a flexible display panel in a rolled state according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram illustrating a flexible display panel provided in an embodiment of the present application in a flattened state;
fig. 5 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a hinge and a flexible display panel provided in an embodiment of the present application;
fig. 9 is a schematic side view of a display device according to an embodiment of the present application;
fig. 10 is a schematic side view illustrating another side structure of a display device according to an embodiment of the present disclosure.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result. Furthermore, the term "coupled" is intended to encompass any direct or indirect electrical coupling. Thus, if a first device couples to a second device, that connection may be through a direct electrical coupling or through an indirect electrical coupling via other devices and couplings. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims. The same parts between the embodiments are not described in detail.
Fig. 1 is a schematic structural diagram of a display device in the prior art. Referring to fig. 1, in a display device 200 in the prior art, a flexible display panel 210 is fixed on a rotating shaft 220, a spring 230 is assembled on the rotating shaft 220, and the spring 230 is engaged with a limiting block 240; when the flexible display panel 210 is completely stretched out, the fixing structure (not shown) fixes the flexible display panel 210; during the stretching, the spring 230 on the rotating shaft 220 stores energy; when the flexible display panel 210 is wound, the spring 230 on the rotating shaft 220 is restored to the original state, and energy is released, so that the flexible display panel 210 is wound on the rotating shaft 220 layer by layer; on one hand, in the above process, stretching the flexible display panel 210 cannot be suspended at any time, and the flexible display panel 210 is easily over stretched to damage the flexible display panel 210, so that the non-display area of the flexible display panel 210 cannot be protected; on the other hand, the spring 230 is easy to be dislocated and deformed, and after the flexible display panel 210 is completely flattened, it is not easy to ensure that the limit state of the spring 230 is consistent with the limit state of the flexible display panel 210, which may cause the flexible display panel 210 to be overstretched, which may affect the service life of the flexible display panel 210.
In view of this, this application provides a display device, adopts rack and pinion drive mechanism's mode, and the spacing of stopper is mated again, can effectively avoid the condition of flexible display panel overstretching.
The following detailed description is to be read in connection with the drawings and the detailed description.
Fig. 2 is a schematic structural diagram of a display device 100 according to an embodiment of the present disclosure, fig. 3 is a schematic structural diagram of a flexible display panel 10 provided in an embodiment of the present disclosure in a rolled state, fig. 4 is a schematic structural diagram of the flexible display panel 10 provided in an embodiment of the present disclosure in a flattened state, please refer to fig. 2 to 4, and the display device 100 provided in the present disclosure includes:
a flexible display panel 10 including a flattened state and a rolled state;
the furling assembly 20 comprises a rotating shaft 30, a gear and rack transmission mechanism 40 and a motion transmission assembly 50 connecting the rotating shaft 30 and the gear and rack transmission mechanism 40; the rotating shaft 30 is connected with the flexible display panel 10, and the rotating shaft 30 is used for rolling up the flexible display panel 10; the rack-and-pinion transmission mechanism 40 comprises a rack 41, the extending direction of the rack 41 is parallel to the extending direction D1 of the rotating shaft 30, and the rotation of the rotating shaft 30 is converted into linear transmission of the rack 41 through the motion transmission assembly 50;
the frame 60, the furling assembly 20 is positioned in the frame 60, and the inner wall of the frame 60 is provided with a limiting block 70; when the flexible display panel 10 is in a flattened state, the rack 41 contacts the stopper 70.
It should be noted that the embodiment shown in fig. 2 only schematically shows a position relationship diagram of a part of the structures of the display device 100, and the dimensions of each structure do not represent actual dimensions, wherein the embodiment shown in fig. 2 only schematically shows one relative position relationship among the rotating shaft 30, the rack and pinion mechanism 40 and the motion transmission assembly 50, and in order to reduce the internal space of the frame 60, the rack and pinion mechanism 40 and the motion transmission assembly 50 may also be located on the same side as the flattened flexible display panel 10; the embodiment shown in fig. 3 only schematically shows a schematic diagram of a structure in which the flexible display panel 10 is rolled on the rolling assembly 20, and the size of each structure does not represent an actual size, wherein the number of turns of the flexible display panel 10 wound on the rotating shaft 30 does not represent an actual number of turns; the embodiment shown in fig. 4 only schematically shows a structural diagram of stretching and flattening the flexible display panel 10, and the size of each structure does not represent the actual size, wherein the display area of the flattened flexible display panel 10 does not represent the actual size.
Specifically, as shown in fig. 2 to fig. 4, the display device 100 in the present embodiment includes a flexible display panel 10, and the flexible display panel 10 is made of a soft material, and is deformable and bendable, and has good flexibility. The flexible display panel 10 of the present application may be rolled up on the rolling-up assembly 20, and it can also be understood that the rolling-up assembly 20 is used for bearing the flexible display panel 10; the flexible display panel 10 includes a flattened state (as shown in fig. 4) and a rolled state (as shown in fig. 3), and the flexible display panel 10 can be stretched or retracted from the rolling assembly 20 according to a user's requirement, so as to implement different usage scenarios of the flexible display panel 10.
Further, the furling assembly 20 comprises a rotating shaft 30, a rack and pinion transmission mechanism 40 and a motion transmission assembly 50 connecting the rotating shaft 30 and the rack and pinion transmission mechanism 40, wherein the motion transmission assembly 50 transmits the motion of the rotating shaft 30 to the rack and pinion transmission mechanism 40; the rotating shaft 30 is connected with the flexible display panel 10, optionally, the rotating shaft 30 is detachably connected or non-detachably connected with the flexible display panel 10, the non-detachable connection specifically adopts gluing, riveting or welding, and the like, and the detachable connection specifically adopts threaded connection, spline connection or buckle connection, and the like; the flexible display panel 10 is wound on the rotary drawer 30 in a winding mode, and the rotary drawer 30 separates the flexible display panel 10 layer by layer or winds the flexible display panel layer by layer in a self-rotating mode; of course, after the flexible display panel 10 is completely flattened, a certain blocking member is further provided to block the unlimited rotation of the rotation shaft 30.
Further, as shown in fig. 2 to fig. 4, the rack-and-pinion mechanism 40 of the present embodiment includes a rack 41, wherein the extending direction of the rack 41 is the same as the extending direction D1 of the rotating shaft 30, and the rotation of the rotating shaft 30 can be converted into the linear motion of the rack 41 through the motion transmission assembly 50, that is, the motion direction is along the extending direction of the rack 41; it can also be understood that the linear movement distance of the rack 41 represents the number of rotation turns of the rotating shaft 30 to some extent, and the rotation of the rotating shaft 30 can be indirectly controlled by controlling the linear movement of the rack 41, so as to further control the degree of flattening of the flexible display panel 10; therefore, in this embodiment, a frame 60 is further provided, the furling assembly 20 is disposed in the frame 60, a limiting block 70 is disposed on an inner wall of the frame 60, and the limiting block 70 is used for limiting the linear motion of the rack 41, and further can control the unlimited rotation of the rotating shaft 30; it can also be understood that, the frame 60 is a cavity structure, the furling assembly 20 is arranged in the cavity, the inner wall of the cavity is provided with the limiting block 70, the flexible display panel 10 is in the completely-unfolded state, the rack 41 contacts with the limiting block 70, at this moment, the limiting block 70 can block the rack 41 from continuing to move, indirectly, the rack 41 stops moving, the rotating shaft 30 stops rotating, so that the phenomenon of excessive stretching caused by the flexible display panel 10 from the curled state to the unfolded state can be prevented, the damage of the flexible display panel 10 is avoided, the display effect of the flexible display panel 10 is ensured, and the service life of the flexible display panel 10 is prolonged.
Optionally, in the process of converting the flexible display panel 10 from the rolled-up state to the rolled-out state, the distance between the end of the rack 41 close to the stopper 70 and the stopper 70 gradually decreases.
Specifically, please refer to fig. 2 continuously, in the present embodiment, in the process of switching the flexible display panel 10 from the rolled state to the flattened state, the flexible display panel 10 wound on the rotating shaft 30 is separated from the rotating shaft 30 layer by layer, and the distance between the end of the rack 41 close to the limiting block 70 and the limiting block 70 is gradually reduced, after the flexible display panel is contacted with the limiting block 70, the rack 41 stops moving, and the indirect rotating shaft 30 stops rotating, which indicates that the flexible display panel 10 is in the completely flattened state, at this time, the flexible display panel 10 is not pulled by the tensile force any more, so that the flexible display panel 10 can be effectively prevented from being damaged due to over-stretching, and the display effect of the flexible display panel 10 is ensured.
Optionally, in the process of converting the flexible display panel 10 from the flat state to the rolled-up state, the distance between the end of the rack 41 close to the stopper 70 and the stopper 70 gradually increases.
Specifically, please refer to fig. 2, in this embodiment, in the process of converting the flexible display panel 10 from the flat state to the furled state, the flexible display panel 10 is wound on the rotating shaft 30 layer by layer, and the distance between the end of the rack 41 close to the limiting block 70 and the limiting block 70 is gradually increased; at this time, the setting of the limiting block 70 does not affect the linear motion of the rack 41 until the flexible display panel 10 is completely wound on the rotating shaft 30.
Optionally, fig. 5 is another schematic structural diagram of the display device 100 provided in the embodiment of the present application, please refer to fig. 5 in combination with fig. 2, in which the motion transmission assembly 50 includes a first bevel gear 51 and a second bevel gear 52, the first bevel gear 51 is fixedly connected to the first end of the rotating shaft 30, and the first bevel gear 51 drives the second bevel gear 52 to rotate;
the rack-and-pinion transmission mechanism 40 further comprises a gear 42 and a transmission shaft 43, the gear 42 is meshed with the rack 41, a first end of the transmission shaft 43 is fixedly connected with the gear 42, and a second end of the transmission shaft 43 is fixedly connected with the second bevel gear 52;
the radius of gear 42 is smaller than the radius of second bevel gear 52.
It should be noted that the embodiment shown in fig. 5 only schematically illustrates a schematic diagram of a part of the structure of the display device 100, wherein the sizes of the first bevel gear 51 and the second bevel gear 52 do not represent actual sizes, and only the meshing relationship between the first bevel gear 51 and the second bevel gear 52 is illustrated in the diagram; the size of the second bevel gear 52 and gear 42 also do not represent actual size; wherein, the number of teeth of gear 42 also does not represent actual dimensions with the tooth pitch of rack 41, according to actual preparation demand, the number of teeth of gear 42 and the tooth pitch of rack 41 can be adjusted.
Specifically, as shown in fig. 5 with reference to fig. 2, the motion transmission assembly 50 in the present embodiment includes a first bevel gear 51 and a second bevel gear 52, the first bevel gear 51 is engaged with the second bevel gear 52, the first bevel gear 51 is fixedly connected to the first end of the rotating shaft 30, and the first bevel gear 51 drives the second bevel gear 52 to rotate; further, the rack and pinion transmission mechanism 40 in this embodiment further includes a gear 42 and a transmission shaft 43, the gear 42 is fixed to a first end of the transmission shaft 43 and is engaged with the rack 41, and the second bevel gear 52 is fixed to a second end of the transmission shaft 43; it can also be understood that rotation of the rotating shaft 30 drives the first bevel gear 51 to rotate, rotation of the first bevel gear 51 drives the second bevel gear 52 to rotate, rotation of the second bevel gear 52 drives the transmission shaft 43 to rotate, rotation of the transmission shaft 43 drives the gear 42 to rotate, the gear 42 is meshed with the rack 41 and further converted into linear motion of the rack 41, and the rack 41 moves along the extending direction thereof; of course, in order to avoid the problem that the distance that the rack 41 moves is large, which affects the size of the display device 100, the radius of the gear 42 and the radius of the second bevel gear 52 need to be further defined, that is, the radius of the gear 42 is smaller than the radius of the second bevel gear 52; that is, the number of turns of the second bevel gear 52 is converted into the number of turns of the gear 42, and in view of the small radius of the gear 42 and the small pitch of the rack 41 engaged with the gear 42, the distance of the rack 41 moving along the straight line is small, so as to avoid the problem that the movement range of the rack 41 is large, the size of the display device 100 is affected, and the user experience of the display device is affected.
Optionally, continuing to refer to FIG. 5, the first bevel gear 51 is the same size as the second bevel gear 52; on one hand, the size of the first bevel gear 51 is the same as that of the second bevel gear 52, so that the manufacturing time of the display device 100 can be saved; on the other hand, the first bevel gear 51 and the second bevel gear 52 are the same size, and the influence of the motion transmission assembly 50 on the range of the linear motion of the rack can be avoided.
Optionally, fig. 6 is another schematic structural diagram of the display device 100 according to the embodiment of the present application, please refer to fig. 6 in combination with fig. 2, where the flexible display panel 10 is converted from the rolled state to the flattened state, and the number of pull-out loops of the flexible display panel 10 is
Where L is a length of the flexible display panel 10 in a direction perpendicular to the rotation shaft 30, h is a thickness of the flexible display panel 10 in a flattened state, and r is a radius of the rotation shaft 30.
Specifically, please refer to fig. 6 in combination with fig. 2, in this embodiment, the flexible display panel 10 is converted from the rolled state to the flattened state, and the number of pulling-out turns of the flexible display panel 10 is
Where L is a length of the flexible display panel 10 in a direction perpendicular to the rotation axis 30, which can also be understood as a total length of the flexible display panel 10 stretched out; h is the thickness of the flexible display panel 10 in the flattened state, that is, the thickness of the flexible display panel 10 when displaying; r is the radius of the rotating shaft 30; according to the formula of the number n of pulled turns of the flexible display panel 10, the number n of pulled turns of the flexible display panel 10 can be adjusted by adjusting the radius of the rotating shaft 30, the application is not limited herein, and the number n of pulled turns of the flexible display panel 10 can be flexibly adjusted according to user requirements and actual manufacturing requirements, that is, the length of the display panel is flexibly set, so that the flexible display panel 10 can meet the user experience; in addition, the size of the rotating shaft 30 is limited according to the actual manufacturing requirements and the size of the first bevel gear 51 and the second bevel gear 52.
Alternatively, as shown in fig. 5, the number of teeth of the gear 42 is z, the pitch of the rack 41 is d, and the distance of the rack 41 along the straight line is S, S ═ n ×, z ×, d.
Specifically, as shown in fig. 5, the distance of the linear transmission of the rack 41 in the present embodiment is S, S is n x z x d, where the number of teeth of the gear 42 is z, the pitch of the rack 41 is d, and the number of pull-out turns of the flexible display panel 10 is n; the number of teeth through adjustment gear 42 and the tooth pitch of rack 41 reduce rack 41 along linear drive's distance, and gear 42 and rack 41 mesh reduce rack 41's tooth pitch and gear 42's number of teeth, can effectually reduce rack 41 along linear drive's distance, further avoid rack 41 driven distance great, increase display device 100's size, influence display device 100's user experience.
Optionally, please continue to refer to fig. 2, further comprising: the sliding groove 80, the sliding groove 80 and one side of the stopper 70 close to the rack 41 are fixedly connected, the extending direction of the sliding groove 80 is the same as the extending direction of the rack 41, and the rack 41 is located in the sliding groove 80 and is connected with the sliding groove 80 in a sliding manner.
It should be noted that the embodiment shown in fig. 2 only schematically shows a relative position diagram of the sliding groove 80, and does not represent a specific size of the sliding groove 80.
Specifically, please refer to fig. 2, in this embodiment, a sliding groove 80 is further provided, the sliding groove 80 is fixed on the limiting block 70, and the sliding groove 80 is fixed on one side of the limiting block 70 close to the rack 41, optionally, the sliding groove 80 may be connected with the limiting block 70 in a detachable or non-detachable manner, which is not limited herein; of course, the sliding groove 80 may be fixed to the inner wall of the frame 60. Further, the extending direction of the sliding groove 80 is the same as the extending direction of the rack 41, and the sliding groove 80 is used for limiting the rack 41, that is, the rack 41 is located in the sliding groove 80, and the rack 41 is slidably connected with the sliding groove 80, the rack 41 moves linearly in the sliding groove 80, and the sliding groove 80 can limit the rack 41 to move along the extending direction of the rotating shaft 30, so as to ensure that the rack 41 moves linearly.
Optionally, as shown in fig. 2, the sliding groove 80 is a T-shaped groove.
Specifically, as shown in fig. 2, the sliding groove 80 in the present embodiment is a T-shaped groove; in one aspect, the T-shaped slot can provide a cavity for receiving the rack 41; on the other hand, the T-shaped groove is also provided with an opening 61, which can realize the mutual meshing of the gear 42 and the rack 41; therefore, the T-shaped groove can better realize the limiting function.
Optionally, please continue to refer to fig. 2, further comprising: and the motor 90, wherein the motor 90 is fixedly connected with the second end of the rotating shaft 30.
Specifically, as shown in fig. 2, in the present embodiment, the display device 100 further includes a motor 90, and the motor 90 is fixedly connected to the second end of the rotating shaft 30; it can also be understood that the output shaft of the motor 90 is reused as the rotating shaft 30 of the furling assembly 20, the motor 90 can drive the rotating shaft 30 to rotate, so as to provide power for the rotation of the rotating shaft 30, and further the rotation of the rotating shaft 30 can realize the furling or the separation of the flexible display panel 10 from the rotating shaft 30, so as to realize the display device 100 in a winding form.
Alternatively, fig. 7 is another schematic structural diagram of the display device 100 provided in the embodiment of the present application, please refer to fig. 7 in combination with fig. 2, in which the frame 60 is further provided with an opening 61, and the flexible display panel 10 is stretchable and retractable through the opening 61;
the opening 61 extends in the same direction as the rotation shaft 30.
It should be noted that the embodiment shown in fig. 7 only schematically shows the external structure of the display device, wherein the sizes of the flexible display panel 10 and the opening 61 do not represent specific sizes.
Specifically, please refer to fig. 7 in combination with fig. 2, in the embodiment, the frame 60 is further provided with an opening 61, the flexible display panel 10 is stretchable or retractable through the opening 61, an extending direction of the opening 61 is the same as the extending direction D1 of the rotation shaft 30, and a dimension of the opening 61 along the extending direction of the rotation shaft 30 is larger than a dimension of the flexible display panel 10 along the extending direction of the rotation shaft 30, so that the dimension of the opening 61 does not affect the stretching or retracting of the flexible display panel 10, and the flexible display panel 10 can move smoothly.
Optionally, please continue to refer to fig. 2, further comprising: the fixing member 110, the fixing member 110 is fixedly connected to the flexible display panel 10, and when the flexible display panel 10 is in the flat state, the fixing member 110 is located on a side of the flexible display panel 10 away from the furling assembly 20.
Specifically, as shown in fig. 2, in the present embodiment, when the flexible display panel 10 is in the flattened state, a fixing member 110 is further disposed on a side of the flexible display panel 10 away from the furling assembly 20, and optionally, the fixing member 110 is fixedly connected to a side of the flexible display panel 10 away from the light exit surface; on one hand, the area of the display area in the flexible display panel 10 is not affected; on the other hand, the fixing member 110 is disposed such that the flexible display panel 10 is not completely rolled up in the rolling assembly 20, and the fixing member 110 plays a role of blocking; the fixing member 110 and the flexible display panel 10 may be fixedly connected in a detachable or non-detachable manner.
Optionally, fig. 8 is a schematic structural diagram of the rotating shaft 30 and the flexible display panel 10 provided in the embodiment of the present application, please refer to fig. 8, where both ends of the rotating shaft 30 are further provided with a limiting structure 31.
Specifically, in the present embodiment, the two ends of the rotating shaft 30 are provided with the limiting structures 31, and the limiting structures 31 are used for limiting the flexible display panel 10 wound on the rotating shaft 30 to move along the extending direction of the rotating shaft 30; alternatively, the shape of the limiting structure 31 may be a cube, a cuboid, a cylinder or a block with other shapes, which is not limited herein; through setting up limit structure 31, can ensure that flexible display panel 10 is better convolutes on pivot 30.
Optionally, fig. 9 is a schematic side view of the display device 100 provided in the embodiment of the present application, and fig. 10 is a schematic side view of the display device 100 provided in the embodiment of the present application, please refer to fig. 9 and fig. 10, which further include: the first auxiliary supporting structure 120 and the second auxiliary supporting structure 130, one end of the first auxiliary supporting structure 120 is fixedly connected with the inner wall of the frame 60, and the other end of the first auxiliary supporting structure 120 is movably connected with the transmission shaft 43, so as to provide a supporting force for the transmission shaft 43 and avoid the phenomenon that the transmission shaft 43 is not enough in supporting force and falls off, and in addition, the first auxiliary supporting structure 120 is movably connected with the transmission shaft 42 so as to avoid the first auxiliary supporting structure 120 from influencing the rotation of the transmission shaft 43; one end of the second auxiliary supporting structure 130 is fixedly connected to the inside of the frame 60, and the other end of the second auxiliary supporting structure 130 is movably connected to the rotating shaft 30, so as to provide sufficient supporting force for the rotating shaft 30, and in addition, the second auxiliary supporting structure 130 is movably connected to the rotating shaft 30, so as to prevent the second auxiliary supporting structure 130 from influencing the rotation of the rotating shaft 30.
According to the embodiments, the application has the following beneficial effects:
according to the display device provided by the application, the rotating shaft, the gear rack transmission mechanism and the motion transmission assembly are arranged, and the rotation of the rotating shaft is converted into the linear motion of the rack in the gear rack transmission mechanism through the motion transmission assembly; in addition, the rack is also provided with a frame, the inner wall of the frame is provided with a limiting block, and the limiting block is used for limiting the linear motion of the rack and further can control the unlimited rotation of the rotating shaft; the frame is the cavity structure, is provided with the roll-up subassembly in the cavity, is provided with the stopper on the inner wall of cavity, is in under the complete exhibition flat state at flexible display panel, and the rack contacts with the stopper, and at this moment, the stopper can block the rack continuation motion, and indirectly, rack stop motion, pivot stall, so, can prevent that flexible display panel from being in the overstretching state, avoid flexible display panel to damage, guarantee flexible display panel's display effect, extension flexible display panel's life.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (10)
1. A display device, comprising:
a flexible display panel comprising a flattened state and a rolled state;
the furling assembly comprises a rotating shaft, a gear and rack transmission mechanism gear and a motion transmission assembly for connecting the rotating shaft and the gear and rack transmission mechanism gear; the rotating shaft is fixedly connected with the flexible display panel and used for rolling up the flexible display panel; the gear of the gear rack transmission mechanism comprises a rack, the extending direction of the rack is parallel to the extending direction of the rotating shaft, and the rotation of the rotating shaft is converted into linear transmission of the rack through the motion transmission assembly;
the furling assembly is positioned in the frame, and a limiting block is arranged on the inner wall of the frame; when the flexible display panel is in a flattening state, the rack is in contact with the limiting block.
2. The display device according to claim 1, wherein in a transition process of the flexible display panel from the rolled-up state to the rolled-out state, a distance between an end portion of the rack close to the stopper and the stopper is gradually reduced.
3. The display device according to claim 1, wherein in a process of converting the flexible display panel from the flat state to the furled state, a distance between an end portion of the rack close to the limiting block and the limiting block is gradually increased.
4. The display device according to claim 1, wherein the motion transmission assembly comprises a first bevel gear and a second bevel gear, the first bevel gear is fixedly connected with the first end of the rotating shaft and the second bevel gear is fixedly connected with the first end of the rotating shaft;
the gear of the gear rack transmission mechanism further comprises a gear and a transmission shaft, the gear is meshed with the rack, the first end of the transmission shaft is fixedly connected with the gear, and the second end of the transmission shaft is fixedly connected with the second bevel gear;
the radius of the gear is smaller than that of the second bevel gear.
5. The display device according to claim 4, wherein the flexible display panel is converted from the rolled state to the flattened state, and the number of pulling-out turns of the flexible display panel is
L is the length of the flexible display panel in the direction perpendicular to the rotating shaft, h is the thickness of the flexible display panel in the flattening state, and r is the radius of the rotating shaft.
6. The display device according to claim 4, wherein the number of teeth of the gear is z, the pitch of the rack is d, and the rack is driven along a straight line by a distance S, S-n-z-d.
7. The display device according to claim 1, further comprising: the sliding groove, the sliding groove with one side fixed connection that the stopper is close to the rack, the extending direction of sliding groove with the extending direction of rack is the same, the rack is located in the sliding groove, and with sliding groove sliding connection.
8. The display device according to claim 1, wherein the slide groove is a T-shaped groove.
9. The display device according to claim 1, further comprising: and the motor is fixedly connected with the second end of the rotating shaft.
10. The display device according to claim 1, wherein the frame is further provided with an opening through which the flexible display panel is stretchable and retractable;
the extending direction of the opening is the same as the extending direction of the rotating shaft.
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| CN202111138331.8A CN113808491B (en) | 2021-09-27 | 2021-09-27 | Display device |
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| CN202111138331.8A CN113808491B (en) | 2021-09-27 | 2021-09-27 | Display device |
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| CN113808491B CN113808491B (en) | 2023-04-07 |
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| CN114582245A (en) * | 2022-04-25 | 2022-06-03 | 武汉天马微电子有限公司 | Control method of rollable display panel, winding assembly and rollable display device |
| CN117593965A (en) * | 2023-12-20 | 2024-02-23 | 绵阳惠科光电科技有限公司 | Stretching device of display screen and display screen |
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| CN113808491B (en) | 2023-04-07 |
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