CN113838380A - Flexible display device and mobile terminal - Google Patents
Flexible display device and mobile terminal Download PDFInfo
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- CN113838380A CN113838380A CN202111165117.1A CN202111165117A CN113838380A CN 113838380 A CN113838380 A CN 113838380A CN 202111165117 A CN202111165117 A CN 202111165117A CN 113838380 A CN113838380 A CN 113838380A
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- flexible display
- display device
- driving
- display panel
- transmission unit
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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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- 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
- G09F9/33—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 being semiconductor devices, e.g. diodes
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the application discloses a flexible display device and a mobile terminal, wherein the flexible display device comprises a scroll, a flexible display panel, a driving piece and a transmission unit, wherein the scroll is hollow, and a hollow cavity is arranged on the scroll along the axial direction of air; the driving piece is arranged in the hollow cavity; the transmission unit is connected with the driving piece and the reel, and the driving piece drives the reel to rotate through the transmission unit; one end of the flexible display panel is fixed outside the scroll, and the flexible display panel can be rolled or unfolded when the scroll rotates. Compare in current curling OLED display module assembly with the driving piece setting at the outer technical scheme of spool, this application has effectively utilized the inner space of spool, hides the driving piece in the spool, greatly reduced flexible display device's size, be favorable to miniaturized design.
Description
Technical Field
The application relates to the field of display, in particular to a flexible display device and a mobile terminal.
Background
With the development of OLED (Organic Light-Emitting Diode) display technology, flexible OLED technology is gradually mature, and meanwhile, various emerging display modes are generated. Among them, the curled OLED display module has become one of the core directions of innovative development of global panel and module manufacturers as a module of a new display technology.
Generally, a roll-up OLED display module includes a roll, a flexible display panel wound outside the roll, and a driving member for driving the roll to rotate, wherein the driving member drives the roll to rotate, so that the flexible display panel can be unrolled or rolled up. Because the OLED display module that curls has increased the driving piece, the size that leads to curling OLED display module is great, is unfavorable for realizing miniaturized design.
Disclosure of Invention
The embodiment of the application provides a flexible display device and a mobile terminal, can solve the technical problem that the size of a curled OLED display module is large and is not favorable for realizing miniaturized design.
An embodiment of the present application provides a flexible display device, including:
a scroll provided with a hollow cavity;
one end of the flexible display panel is fixed outside the scroll, and the scroll can roll or unfold the flexible display panel when rotating;
the driving piece is arranged in the hollow cavity; and
the transmission unit is connected to the driving piece and the reel, and the driving piece drives the reel to rotate through the transmission unit.
Optionally, in some embodiments of the present application, the transmission unit includes a driving gear and an internal gear that are engaged with each other, the driving gear is connected to the driving member, and the internal gear is fixed to the inner wall of the hollow cavity.
Optionally, in some embodiments of the present application, the transmission unit further includes a driven gear, the driving gear is engaged with the driven gear, and the internal gear is engaged with the driven gear; alternatively, the first and second electrodes may be,
the transmission unit further comprises at least two driven gears, the driving gear is connected to one driven gear in a meshed mode, and the internal gear is connected to the other driven gear in a meshed mode.
Optionally, in some embodiments of the present application, the transmission ratio of the transmission unit is 30: 1-70: 1.
Optionally, in some embodiments of the present application, the flexible display device further includes a driving circuit board disposed in the hollow cavity, and the driving element and the flexible display panel are both electrically connected to the driving circuit board.
Optionally, in some embodiments of the present application, the flexible display device further includes a supporting unit, the reel is rotatably connected to the supporting unit, and the driving member is fixed to the supporting unit.
Optionally, in some embodiments of the present application, the supporting unit includes two supporting covers and a supporting frame, the two supporting covers are disposed opposite to each other, the winding shaft is disposed between the two supporting covers,
the support frame is arranged in the hollow cavity, one end of the support frame is fixedly connected to one of the support cover bodies, and the other end of the support frame is fixedly connected to the other support cover body.
Optionally, in some embodiments of the present application, the supporting unit further includes a connection limiting part disposed between the two supporting cover bodies, the connection limiting part is located at an outer side of the reel, and a limiting window for the flexible display panel to pass through is disposed on the connection limiting part.
Optionally, in some embodiments of the present application, the flexible display device further includes a bearing, the bearing having an inner ring and an outer ring, the outer ring being fixed to the reel, and the inner ring being fixed to the supporting unit.
An embodiment of the present application further provides a mobile terminal, including the flexible display device as described above.
The flexible display device and the mobile terminal provided by the embodiment of the application accept the driving piece in the hollow cavity through setting up the hollow cavity in the spool, compare in the technical scheme that current curling OLED display module set up the driving piece outside the spool, this application has effectively utilized the inner space of spool, hides the driving piece in the spool, greatly reduced flexible display device's size, be favorable to miniaturized design.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flexible display device provided in an embodiment of the present application in an unfolded state;
fig. 2 is a schematic structural diagram of a flexible display device provided in an embodiment of the present application in a rolled state;
fig. 3 is a first schematic cross-sectional structural diagram of a flexible display device according to an embodiment of the present application;
fig. 4 is a schematic perspective cross-sectional structural diagram of a flexible display device provided in an embodiment of the present application;
fig. 5 is a schematic cross-sectional structural diagram of a flexible display device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
The embodiment of the application provides a flexible display device and a mobile terminal. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
Referring to fig. 1 to 3, an embodiment of the present invention provides a flexible display device, including a scroll 200, a flexible display panel 300, a driving member 400 and a transmission unit 500, wherein the scroll 200 is hollow, and the scroll 200 has a hollow cavity 210 along an axial direction of the scroll; the driving member 400 is disposed in the hollow cavity 210; the transmission unit 500 is connected to the driving member 400 and the reel 200, and the driving member 400 drives the reel 200 to rotate through the transmission unit 500; one end of the flexible display panel 300 is fixed outside the scroll 200, and the scroll 200 can roll or unwind the flexible display panel 300 when rotating.
The flexible display device shown in fig. 1 is in an unfolded state, that is, the flexible display panel 300 is in a rolled state, and the flexible display device shown in fig. 2 is in a rolled state, that is, the flexible display panel 300 is in a rolled state, and the driving member 400 controls the reel 200 to rotate through the transmission unit 500, so that the flexible display device can be switched between the unfolded state and the rolled state.
Specifically, the flexible display device according to the embodiment of the present application operates according to the following principle: as shown in fig. 2, when the flexible display device is in the rolled state, the flexible display panel 300 is wound outside the scroll 200, and the driving member 400 controls the scroll 200 to rotate along the first direction through the transmission unit 500, so that the flexible display panel 300 is gradually unrolled, and at this time, the flexible display device is gradually switched from the rolled state shown in fig. 2 to the unrolled state shown in fig. 1; as shown in fig. 1, when the flexible display device is in the unfolded state, the flexible display panel 300 is unfolded, and the driving member 400 controls the reel 200 to rotate in the second direction through the transmission unit 500, so that the flexible display panel 300 is gradually rolled up, and at this time, the flexible display device is gradually switched from the unfolded state shown in fig. 1 to the rolled state shown in fig. 1. In the above operation, the first direction and the second direction are opposite, for example, if the first direction is clockwise, the second direction is counterclockwise; if the first direction is a counterclockwise direction, the second direction is a clockwise direction, that is, one of the first direction and the second direction is a clockwise direction, and the other is a counterclockwise direction.
When the flexible display device is switched to the unfolded state, it is convenient for a user to view the entire flexible display panel 300; when switching the flexible display device to the rolling state, it is convenient to store the flexible display panel 300. It should be mentioned that, when the flexible display device of the embodiment of the present application is in the rolling state, the display area of the flexible display panel 300 is completely exposed, that is, no matter in the unfolding state or the rolling state, the flexible display panel 300 can be used for displaying, and the availability of the flexible display panel 300 is greatly improved.
In the flexible display device of the embodiment of the application, through set up cavity 210 in spool 200, accept driving piece 400 in cavity 210, compare in the technical scheme that current curling OLED display module set up driving piece 400 outside spool 200, this application has effectively utilized the inner space of spool 200, hides driving piece 400 in spool 200, greatly reduced flexible display device's size, be favorable to miniaturized design.
Specifically, as shown in fig. 1 to 3, the flexible display device further includes a supporting unit 100, the reel 200 is rotatably connected to the supporting unit 100, and the driving member 400 is fixed to the supporting unit 100.
Specifically, as shown in fig. 3 and 4, the transmission unit 500 includes a driving gear 510 and an inner gear 520, the driving gear 510 is connected to the driving member 400, the inner gear 520 is fixed to an inner wall of the hollow cavity 210, and the driving gear 510 and the inner gear 520 are engaged with each other. In the flexible display device according to the embodiment of the present application, the driving member 400 controls the driving gear 510 to rotate, and the inner gear 520 engaged with the driving gear 510 rotates along with the driving gear 510, thereby rotating the scroll 200. In this embodiment, the drive gear 510 may be directly meshingly coupled to the inner gear 520.
It is understood that the specific structure of the transmission unit 500 can be modified as appropriate according to the choice of actual conditions and specific requirements, as long as the driving member 400 can drive the reel 200 to rotate through the transmission unit 500, and the invention is not limited thereto.
Further, as shown in fig. 5, the transmission unit 500 further includes a driven gear 530, when the number of the driven gears 530 is one, the driving gear 510 is engaged with the driven gear 530, and the internal gear 520 is engaged with the driven gear 530; when the number of the driven gears 530 is at least two, the driving gear 510 is engaged with one of the driven gears 530, and the internal gear 520 is engaged with the other driven gear 530. With this structure, the driving gear 510 is controlled by the driving member 400 to rotate, and the driven gear 530 rotates along with the driving gear 510, so that the inner gear 520 drives the spool 200 to rotate together.
Alternatively, in the embodiment shown in fig. 5, the driven gear 530 may be rotatably coupled to the support unit 100, and specifically, may be rotatably coupled to the support unit 100 via a rotating shaft such that the driven gear 530 can rotate.
Specifically, in the flexible display device according to the embodiment of the present application, in order to better protect the flexible display panel 300 and prevent the flexible display panel 300 from bearing an excessive torque, the transmission unit 500 is adopted to realize the transmission connection between the driving member 400 and the flexible display panel 300, so that the flexible display panel 300 can be prevented from being damaged in the winding or unwinding process, and the reliability of the flexible display device is effectively improved. If the transmission ratio of the transmission unit 500 is too large, the efficiency of rolling or unrolling the flexible display panel 300 may be greatly reduced; if the transmission ratio of the transmission unit 500 is too small, the flexible display panel 300 may be subjected to an excessive torque when being rolled or unrolled, and the flexible display panel 300 may be easily damaged. In order to avoid the above problem, the transmission ratio of the transmission unit 500 is preferably 30:1 to 70:1, and in this range of transmission ratio, the winding or unwinding efficiency of the flexible display panel 300 can be ensured, and the flexible display panel 300 can be prevented from being damaged.
It should be noted that, in the transmission ratio range of the transmission unit 500, the length of the flexible display panel 300 to be unfolded can be accurately controlled, the flexible display panel 300 is prevented from being excessively unfolded, and the service life of the flexible display panel 300 is effectively prolonged.
Alternatively, the transmission ratio of the transmission unit 500 may be 30:1, 32:1, 34:1, 36:1, 38:1, 40:1, 42:1, 44:1, 46:1, 48:1, 50:1, 52:1, 54:1, 56:1, 58:1, 60:1, 62:1, 64:1, 66:1, 68:1 or 70:1, so that the winding or unwinding efficiency of the flexible display panel 300 can be ensured, and the flexible display panel 300 can be prevented from being damaged. It is understood that the transmission ratio of the transmission unit 500 can be adjusted appropriately according to the choice of actual conditions and specific requirements, and is not limited thereto.
Specifically, in the flexible display device according to the embodiment of the present application, only one driving member 400 may be provided, and of course, the number of the driving members 400 may be appropriately adjusted according to the selection and the specific requirement of the actual situation, for example, the number of the driving members 400 may be two or more, that is, the number of the driving members 400 is one or more, as long as it is ensured that each driving member 400 is matched with the corresponding transmission unit 500 to drive the reel 200 to rotate, which is not limited herein.
Specifically, in the flexible display device according to the embodiment of the present application, the driving member 400 may be a motor, and of course, the driving member 400 may be other devices according to the selection of the actual situation and the specific requirement, as long as it is ensured that the driving member 400 can drive the reel 200 to rotate through the transmission unit 500, which is not limited herein.
Specifically, the flexible display device further includes a driving circuit board 600 disposed in the hollow cavity 210, and the driving member 400 and the flexible display panel 300 are electrically connected to the driving circuit board 600. The driving circuit board 600 can control the driving member 400 and the flexible display panel 300 to operate simultaneously, and a plurality of circuit boards are not required to be arranged to control the driving member 400 and the flexible display panel 300 respectively, so that the material cost is reduced. In this embodiment, the driving circuit board 600 is disposed in the scroll 200, so that the internal space of the scroll 200 is effectively utilized, the size of the flexible display device is greatly reduced, and the miniaturization design is facilitated.
In the flexible display device according to the embodiment of the present application, the driving circuit board 600 may be fixed on the supporting unit 100, or may be fixed on the inner wall of the hollow cavity 210 of the reel 200, and is appropriately adjusted according to the selection of the actual situation and the specific requirement, which is not limited herein.
Specifically, as shown in fig. 1 to 3, the supporting unit 100 includes two supporting cover bodies 110 and a supporting frame 120, the two supporting cover bodies 110 are disposed oppositely, and the reel 200 is disposed between the two supporting cover bodies 110; the supporting frame 120 is disposed in the hollow cavity 210, one end of the supporting frame 120 is fixedly connected to one of the supporting cover bodies 110, and the other end of the supporting frame 120 is fixedly connected to the other supporting cover body 110. It is understood that the specific structure of the supporting unit 100 can be modified appropriately according to the choice of actual conditions and specific requirements, and is not limited thereto.
In the flexible display device according to the embodiment of the application, the hollow cavity 210 is arranged to run through along the axial direction of the scroll 200, the two supporting covers 110 are respectively arranged at the two ends of the scroll 200, that is, the two supporting covers 110 cover the two ends of the hollow cavity 210, so that the hollow cavity 210 is arranged in a closed manner, a good protection effect can be exerted on the devices inside the hollow cavity 210, and the reliability of the flexible display device is effectively improved.
Optionally, the supporting cover 110 may be fixedly connected to the supporting frame 120 by screws, and of course, according to the choice and specific requirements of the actual situation, the supporting cover 110 and the supporting frame 120 may be fixedly connected together by other manners, which is not limited herein.
Specifically, as shown in fig. 3 to fig. 5, the driving element 400 may be fixed on the supporting frame 120, and of course, the driving element 400 may also be fixed on other structures of the supporting unit 100 according to the choice and specific requirements of the actual situation, for example, the driving element 400 may also be fixed on the supporting cover 110, which is not limited herein.
Specifically, as shown in fig. 1 and fig. 2, the supporting unit 100 further includes a connection limiting member 130 disposed between the two supporting cover bodies 110, the connection limiting member 130 is located at an outer side of the reel 200, and a limiting window 131 for the flexible display panel 300 to pass through is disposed on the connection limiting member 130. Under this structure, through the connection locating part 130 between two support covers 110 set up spacing window 131, the width of spacing window 131 and the width adaptation of flexible display panel 300, at the in-process that flexible display panel 300 carries out the rolling or expandes, spacing window 131 can carry out spacing to flexible display panel 300, avoids flexible display panel 300 to buckle along the direction that is perpendicular to spool 200 and influences the rolling or expansion of flexible display panel 300.
In the flexible display device according to the embodiment of the application, the supporting unit 100 is provided with the display window 140, specifically, the two supporting cover bodies 110 and the connecting limiting member 130 surround together to form the annular display window 140, and the display window 140 completely exposes the display area of the flexible display panel 300 when the flexible display panel 300 is in the rolling state, so that the flexible display panel 300 can normally display in the rolling state, and the availability of the flexible display panel 300 is greatly improved.
Specifically, as shown in fig. 3 to 5, the flexible display device further includes a bearing 700, the bearing 700 having an inner ring 710 and an outer ring 720, the outer ring 720 being fixed to the scroll 200, the inner ring 710 being fixed to the support unit 100, so that the scroll 200 is rotatably disposed on the support unit 100.
Alternatively, as shown in fig. 3 to 5, the inner ring 710 of the bearing 700 is fixed to the supporting frame 120, and of course, according to the choice of the actual situation and the specific requirements, the inner ring 710 of the bearing 700 may also be fixed to other structures of the supporting unit 100, for example, the inner ring 710 of the bearing 700 may also be fixed to the supporting cover 110, which is not limited herein.
An embodiment of the present application further provides a mobile terminal, including the flexible display device as described above. Since the mobile terminal provided in this embodiment adopts all technical solutions of all the embodiments described above, all the beneficial effects brought by the technical solutions of the embodiments are also achieved, and are not described in detail herein.
In this embodiment, the mobile terminal may further include a power supply and a speaker, and the power supply and the speaker are disposed in the hollow cavity 210, which is beneficial to the miniaturization design of the mobile terminal. In this embodiment, the mobile terminal may be a mobile phone, a tablet computer, a notebook computer, or the like.
The flexible display device and the mobile terminal provided by the embodiments of the present application are described in detail above, and specific examples are applied in the description to explain the principles and embodiments of the present application, and the description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A flexible display device, comprising:
a scroll provided with a hollow cavity;
one end of the flexible display panel is fixed outside the scroll, and the scroll can roll or unfold the flexible display panel when rotating;
the driving piece is arranged in the hollow cavity; and
the transmission unit is connected to the driving piece and the reel, and the driving piece drives the reel to rotate through the transmission unit.
2. The flexible display device according to claim 1, wherein the transmission unit comprises a driving gear and an internal gear engaged with each other, the driving gear is connected to the driving member, and the internal gear is fixed to an inner wall of the hollow chamber.
3. The flexible display device according to claim 2, wherein the transmission unit further comprises a driven gear, the driving gear is engaged with the driven gear, and the internal gear is engaged with the driven gear; alternatively, the first and second electrodes may be,
the transmission unit further comprises at least two driven gears, the driving gear is connected to one driven gear in a meshed mode, and the internal gear is connected to the other driven gear in a meshed mode.
4. The flexible display device of claim 1, wherein a transmission ratio of the transmission unit is 30:1 to 70: 1.
5. The flexible display device of claim 1, further comprising a driving circuit board disposed within the hollow cavity, wherein the driving member and the flexible display panel are electrically connected to the driving circuit board.
6. The flexible display device according to any one of claims 1 to 5, further comprising a support unit, wherein the reel is rotatably connected to the support unit, and the driving member is fixed to the support unit.
7. The flexible display device according to claim 6, wherein the supporting unit comprises two supporting covers and a supporting frame, the two supporting covers are disposed opposite to each other, the reel is disposed between the two supporting covers,
the support frame is arranged in the hollow cavity, one end of the support frame is fixedly connected to one of the support cover bodies, and the other end of the support frame is fixedly connected to the other support cover body.
8. The flexible display device according to claim 7, wherein the supporting unit further comprises a connection limiting member disposed between the two supporting covers, the connection limiting member is located outside the reel, and a limiting window is disposed on the connection limiting member for the flexible display panel to pass through.
9. The flexible display device of claim 6, further comprising a bearing having an inner race and an outer race, the outer race being secured to the spool, the inner race being secured to the support unit.
10. A mobile terminal characterized by comprising a flexible display device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111165117.1A CN113838380A (en) | 2021-09-30 | 2021-09-30 | Flexible display device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111165117.1A CN113838380A (en) | 2021-09-30 | 2021-09-30 | Flexible display device and mobile terminal |
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| CN113838380A true CN113838380A (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111165117.1A Pending CN113838380A (en) | 2021-09-30 | 2021-09-30 | Flexible display device and mobile terminal |
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| CN (1) | CN113838380A (en) |
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| CN115050269A (en) * | 2022-07-29 | 2022-09-13 | 珠海华萃科技有限公司 | Flexible screen assembly and electronic equipment |
| CN115132096A (en) * | 2022-07-29 | 2022-09-30 | 珠海华萃科技有限公司 | Flexible screen assembly and electronic equipment |
| WO2024050941A1 (en) * | 2022-09-05 | 2024-03-14 | 昆山国显光电有限公司 | Rolling assembly, flexible display device and mobile terminal |
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