CN111768709B - Display device and electronic equipment - Google Patents
Display device and electronic equipment Download PDFInfo
- Publication number
- CN111768709B CN111768709B CN202010682613.3A CN202010682613A CN111768709B CN 111768709 B CN111768709 B CN 111768709B CN 202010682613 A CN202010682613 A CN 202010682613A CN 111768709 B CN111768709 B CN 111768709B
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- Prior art keywords
- shaft
- flexible screen
- fixed
- sliding
- display device
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Classifications
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The embodiment of the invention provides a display device and electronic equipment, and belongs to the technical field of display. The display device includes: the device comprises a sliding shell, a fixed shell, a flexible screen and a conveying assembly; the sliding shell is connected with the fixed shell in a sliding way; the conveying component comprises a rolling shaft, a pre-tightening shaft and a transmission piece; the roller, the pretightning shaft all are articulated with the slip casing, and the driving medium is fixed in the inside of fixed casing, and the first end of flexible screen is fixed on fixed casing, and the top surface of fixed casing is covered to the flexible screen, and the second end of flexible screen winds the roller and fixes on the driving medium, and the pretightning shaft is located between roller and the driving medium, and the top surface of pretightning shaft supports the flexible screen of pressing. Like this, the surface of pretightning shaft is supported the flexible screen all the time, and then has increased the area of contact between flexible screen and the roller bearing, makes the flexible screen receive pretightning shaft's holding power all the time simultaneously, can make the flexible screen always with the surface tangential of roller bearing under pretightning shaft's holding power.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display device and an electronic apparatus.
Background
With the continuous development of display technology, the demands of users for display effects of display devices are increasingly diversified. With the application of flexible display screens, the display device is increasingly pursued for practicability and individualization, such as changing the display proportion of the display device, so as to realize the switching of different functional modes of the display device.
At present, display device includes flexible screen and equipment casing, is provided with the pivot in the equipment casing, and the first end of flexible screen is fixed on the equipment casing, and the second end of flexible screen is around establishing in the pivot, and rotatory through the pivot can change the area that flexible screen covered on the equipment casing to realize changing display device's demonstration proportion's effect.
However, in implementing the present application, the inventors found that at least the following problems exist in the prior art: on the one hand, because the flexible screen can produce deformation resistance because of internal stress at revolute pivot pivoted in-process, lead to the flexible screen unable and the surface of pivot to be fit for the first end perk of flexible screen influences the planarization of screen, and flexible screen perk can lead to the contact surface of flexible screen and pivot to reduce, appears winding in-process flexible screen and pivot surface skidding easily, long-term use, causes the screen damage easily, and then reduces display device's life.
Disclosure of Invention
In view of the above, embodiments of the present invention have been made to provide a display device and an electronic apparatus that overcome or at least partially solve the above-described problems.
In order to solve the above-described problems, the present invention provides, in a first aspect, a display device including: the device comprises a sliding shell, a fixed shell, a flexible screen and a conveying assembly;
the sliding shell is connected with the fixed shell in a sliding way;
the conveying assembly comprises a rolling shaft, a pre-tightening shaft and a transmission piece;
the roller is hinged to the sliding machine shell, the transmission piece is fixed in the fixed machine shell, the first end of the flexible screen is fixed on the fixed machine shell, the flexible screen covers the top outer surface of the fixed machine shell, the second end of the flexible screen is wound around the roller and fixed on the transmission piece, the pre-tightening shaft is located between the roller and the transmission piece, and the top outer surface of the pre-tightening shaft abuts against the flexible screen.
Optionally, the display device further comprises a driving assembly, and the transmission piece comprises a transmission gear and a rack;
the driving gear is meshed with the rack, the driving assembly is connected with the driving gear, the driving assembly is arranged inside the fixed casing, the driving assembly drives the driving gear to rotate, and the second end of the flexible screen is fixed on the non-tooth surface of the rack;
under the drive of the transmission gear, the rack is switched between a first state and a second state, in the first state, the rack moves along a first direction, in the second state, the rack moves along a second direction, wherein the first direction is the direction that the rack is away from the pre-tightening shaft, and the second direction is the direction that the rack is close to the pre-tightening shaft.
Optionally, in the first state, both ends of the rack are located inside the fixed casing, and in the second state, one end of the rack, which is close to the pre-tightening shaft, is located inside the sliding casing.
Optionally, the display device further includes a control component, and the driving component is a driving motor;
the control assembly is arranged in the fixed shell and is electrically connected with the driving motor;
the transmission gear is connected with the output shaft of the driving motor, and the control assembly controls the driving motor to rotate.
Optionally, the diameter of the pre-tightening shaft is smaller than the diameter of the roller.
Optionally, the pre-tightening shaft comprises a shaft sleeve and a shaft core;
the shaft core is fixed on the sliding shell, the shaft sleeve is sleeved on the shaft core, the shaft sleeve rotates along the circumferential surface of the shaft core, and the shaft sleeve is made of flexible materials.
Optionally, the sliding casing includes an upper cover and a lower cover;
the upper cover is fixedly connected with the lower cover, a mounting notch is formed in the connecting position of the end part of the upper cover and the end part of the lower cover, the rolling shaft is hinged to the mounting notch, and the bus at the top of the rolling shaft and the outer surface of the upper cover are located on the same plane.
Optionally, a first gear is arranged at the end of the roller, a second gear is arranged at the end of the pre-tightening shaft, and the first gear is meshed with the second gear.
Optionally, the linear speed of the first gear is equal to the linear speed of the second gear.
Optionally, the two ends of the roller are both provided with the first gear, and the two ends of the pre-tightening shaft are both provided with the second gear.
Optionally, a sliding rail is arranged on the inner wall of the fixed casing, and a sliding block is arranged on the outer wall of the sliding casing;
the sliding block is in sliding connection in the sliding rail and slides along the length direction of the sliding rail, and the length direction of the sliding rail is consistent with the sliding direction of the sliding shell.
Optionally, the display device further includes a first bearing and a second bearing;
the first bearing and the second bearing are fixed in the sliding machine shell, the first bearing is sleeved on the rolling shaft, and the second bearing is sleeved on the pre-tightening shaft.
In a second aspect, the present invention also provides an electronic device, including the display apparatus according to any one of the first aspects.
The embodiment of the invention has the following advantages:
in the embodiment of the invention, as the first end of the flexible screen is fixed on the fixed casing, the second end of the flexible screen is wound around the roller and fixed on the transmission member, the pre-tightening shaft is hinged between the roller and the transmission member, and the outer surface of the pre-tightening shaft is pressed against the flexible screen. Like this, when the display device's of needs increase demonstration proportion, can be to keeping away from the direction pulling slip casing of fixed casing, the flexible screen that is located slip casing inside is under the butt of slip casing, the surface of along the surface of pretightning shaft and roller bearing is pulled out, in the in-process of pulling out, because flexible screen and roller bearing are convoluteed, make the surface of flexible screen and roller bearing take place clockwise rotation under the effect of frictional force, and then make the part that flexible screen is located slip casing inside under the guide of roller bearing, and because the surface of pretightning shaft is in the in-process of pulling out is supported the flexible screen all the time, make flexible screen pass through roller bearing and pretightning shaft in proper order, the cladding angle of flexible screen and roller bearing can be increased, and then area of contact between flexible screen and the roller bearing has been increased, thereby make the frictional force between flexible screen and the roller bearing increase, avoid taking place to skid between flexible screen and the roller bearing in the pulling out process, and then can avoid the flexible screen damage that causes because of skidding improves flexible screen's life. Simultaneously, because the top surface of pretightning shaft supports the flexible screen all the time at pull out or the in-process of withdrawal for the flexible screen receives pretightning shaft's holding power all the time, after flexible screen pulls out, can make the flexible screen always with the surface tangential of roller bearing under pretightning shaft's holding power, can avoid the part perk that is located the roller bearing of flexible screen, and then improve the planarization of flexible screen.
Drawings
Fig. 1 is a schematic view of a display device according to the present invention in a first state;
fig. 2 is a schematic structural view of a display device in a second state according to the present invention;
FIG. 3 is an expanded view of a flexible screen of a display device according to the present invention in a first state
Fig. 4 is a schematic structural view of a transmission assembly included in a display device according to the present invention;
FIG. 5 is an enlarged partial schematic view of a roller and pre-load shaft included in a display device of the present invention;
fig. 6 is another enlarged partial schematic view of a roller and a pre-tension shaft included in a display device of the present invention.
Reference numerals illustrate: 1-a sliding housing; 2-fixing the shell; 3-flexible screen; 4-a transfer assembly; 11-an upper cover; 12-a lower cover; a 5-drive assembly; 41-a roller; 42-pre-tightening the shaft; 43-a transmission member; 411-first gear; 412-a first bearing; 421-second gear; 422-a second bearing; 423-sleeve; 424-mandrel; 431-gear; 432-rack.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Example 1
An embodiment of the present invention provides a display device, referring to fig. 1 to 2, which shows a schematic structural diagram of the display device of the present invention, as shown in fig. 1 to 2, the display device includes a sliding housing 1, a fixed housing 2, a flexible screen 3, and a transmission assembly 4; the sliding machine shell 1 is in sliding connection with the fixed machine shell 2; the conveying assembly 4 comprises a roller 41, a pre-tightening shaft 42 and a transmission member 43; the driving medium 43 is fixed in the inside of fixed casing 2, and the first end of flexible screen 3 is fixed on fixed casing 2, and flexible screen 3 covers the top surface of fixed casing 2, and the second end of flexible screen 3 winds roller 41 and is fixed on driving medium 43, and pretension axle 42 is located between roller 41 and driving medium 43, and the top surface of pretension axle 42 supports and presses flexible screen 3.
Wherein, the sliding casing 1 and the fixed casing 2 are both shells with inner cavities, and the inner cavities of the sliding casing 1 and the fixed casing 2 are used for assembling electronic devices. It should be noted that the material of the sliding housing 1 and the material of the fixed housing 2 may be one or more of engineering plastics, alloy materials, or glass materials having a certain impact resistance.
For example, in the case where the material of the sliding housing 1 and the material of the fixed housing 2 are engineering plastics, the material of the sliding housing 1 and the material of the fixed housing 2 may be one or more of polycarbonate, acrylonitrile-butadiene-styrene copolymer or engineering plastic alloy of polycarbonate and acrylonitrile-butadiene-styrene copolymer, and may play a role in protecting internal electrons due to easy workability and good mechanical strength. However, because the heat conducting performance of the material is poor, if the heat conducting performance of the sliding casing 1 and the fixed casing 2 is considered, the strength of the aluminum alloy, the magnesium alloy or the aluminum-magnesium alloy and the like is high and the material has certain heat conducting performance, so that the sliding casing 1 and the fixed casing 2 have good shock resistance and good heat conducting performance. In addition, if the surface elasticity and brittleness of the sliding housing 1 and the fixed housing 2 are not considered, the sliding housing 1 and the fixed housing 2 can be made of glass materials, and the glass materials have a certain transparent sense, so that the sliding housing 1 and the fixed housing 2 are easier to color compared with alloy materials and have lower influence on wireless signals, and therefore, if the sliding housing 1 and the fixed housing 2 are made of glass materials, signal emitting devices can be arranged inside the sliding housing 1 and the fixed housing 2, and the external attractiveness of the sliding housing 1 and the fixed housing 2 is improved.
In one possible implementation, the sliding housing 1 may be a rectangular box having three surfaces, and in particular, the sliding housing 1 may include a bottom plate, opposite first and second side plates, and the bottom plate is perpendicular to both the first and second side plates. The fixed casing 2 is a rectangular box with single end connected, and the sliding casing 1 is movably connected inside the fixed casing 2, so that the sliding casing 1 is in sliding connection with the fixed casing 2. Thus, when the display scale of the display device needs to be increased, the sliding housing 1 can be pulled in a direction away from the fixed housing 2, so that the sliding housing 1 slides out of the inner cavity of the fixed housing 2. When the display scale of the display device needs to be restored, the sliding housing 1 can be pushed along the direction approaching to the fixed housing 2, so that the sliding housing 1 is re-accommodated in the inner cavity of the fixed housing 2.
Specifically, a sliding rail can be arranged on the inner wall of the fixed casing 2, and a sliding block is arranged on the outer wall of the sliding casing 1; the sliding block is in sliding connection with the sliding rail and slides along the length direction of the sliding rail, and the length direction of the sliding rail is consistent with the sliding direction of the sliding casing 1. The length of the slide rail is determined according to the sliding distance of the sliding housing 1. The sliding blocks are fixed on the outer wall of the sliding machine shell 1, the sliding rails can be single sliding rails or multiple sliding rails, the number of the sliding blocks can be equal to that of the sliding rails, and the sliding blocks can be unequal to that of the sliding rails, for example, multiple sliding blocks can be arranged in one sliding rail. Under the condition that the sliding rail is a plurality of sliding rails, the sliding rails with equal quantity can be arranged on the two opposite inner walls of the fixed casing 2, so that the stress on the two sides of the sliding casing 1 is equal when the sliding casing 1 slides, and the sliding casing 1 is stable when the sliding casing slides.
Alternatively, an elastic member may be disposed at the end of the sliding housing 1 near the fixed housing 2, one end of the elastic member is fixed on the side wall of the fixed housing 2, and the other end of the elastic member is fixed at the end of the sliding housing 1 near the fixed housing 2. The elastic component can be compression spring, when sliding housing 1 holds back in the inner chamber of fixed casing 2 again, sliding housing 1 extrudees the spring for the spring is in compression state, can set up the brake in the position that fixed casing 2 set up the spring, and the one end of brake can joint or magnetism inhale on the spring, under the circumstances of spring compression, the extension of spring can be restricted to the brake. It should be noted that, the braking piece can be the jack catch, also can be the magnetism and inhale the switch, when elasticity is in compression state, can press to be located the one end that the braking piece exposes for braking piece joint or magnetism inhale on the spring, and then the extension of restriction spring. When the sliding casing 1 needs to be ejected, the braking piece can be separated from the spring, so that the sliding casing is ejected under the action of the elastic force of the spring, and the process of manually pulling the sliding casing 1 can be omitted.
The first end of the flexible screen 3 is fixed to the fixed casing 2, and the flexible screen 3 covers the top outer surface of the fixed casing 2. Specifically, the first end of the flexible screen 3 may be adhered to the end of the fixed casing 2, and the flexible screen 3 is laid along the length direction of the fixed casing 2, so that the flexible screen 3 covers the top outer surface of the fixed casing 2, and forms the display surface of the display device. The flexible screen 3 may include a flexible organic light emitting semiconductor and a polymer film, and since the hardness of the flexible organic light emitting semiconductor and the polymer film is low, the flexible screen 3 may be bent within a certain range, and thus the second end of the flexible screen 3 may be wound around the driving assembly and finally accommodated inside the sliding housing 1.
The transfer assembly 4 may include a roller 41, a pre-tension shaft 42, and a drive member 43. The transmission member 43 is fixed inside the sliding housing 1, and the transmission member 43 may be any one of a rocker-slider mechanism, a crank-link mechanism, a sprocket feed mechanism, and the like, so that the transmission member 43 can transmit in the cavity of the sliding housing 1 and the cavity of the fixed housing 2. The roller 41 and the pre-tightening shaft 42 are both hinged with the sliding housing 1, and the pre-tightening shaft 42 is located between the roller 41 and the transmission member 43.
Specifically, as shown in fig. 6, the display device further includes a first bearing 412 and a second bearing 422; the first bearing 412 and the second bearing 422 are fixed inside the sliding housing 1, the first bearing 412 is sleeved on the roller 41, and the second bearing 422 is sleeved on the pre-tightening shaft 42. In this way, since the first bearing 412 is sleeved on the roller 41 and the second bearing 422 is sleeved on the pre-tightening shaft 42, the roller 41 can rotate with the axis of the first bearing 412 as the rotating shaft, so that the pre-tightening shaft 42 rotates with the axis of the second bearing 422 as the rotating shaft, and further the hinge joint of the roller 41, the pre-tightening shaft 42 and the sliding casing 1 is realized.
It should be noted that, since the first end of the flexible screen 3 is fixed on the fixed housing 2, the second end of the flexible screen 3 is wound around the roller 41 and fixed on the transmission member 43, the pre-tightening shaft 42 is hinged between the roller 41 and the transmission member 43, and the outer surface of the pre-tightening shaft 42 presses the flexible screen 3. Like this, when the display device's display proportion needs to be increased, can be to keeping away from the direction pulling slip casing 1 of fixed casing 2, the flexible screen 3 that is located slip casing 1 inside is under the butt of slip casing 1, along the surface of pretightning shaft 42 and the surface of roller 41 is pulled out, in the in-process of pulling out, because flexible screen 3 and roller 41 are convoluteed for flexible screen 3 and roller 41's surface take place clockwise rotation under the effect of frictional force, make the part that flexible screen 3 is located slip casing 1 inside under the guide of roller 41, and because the surface of pretightning shaft 42 is in the in-process of pulling out is supported the flexible screen 3 all the time, make flexible screen 3 pass through roller 41 and pretightning shaft 42 in proper order, and then the cladding angle of flexible screen 3 and roller 41 has been increased, and then the area of contact between flexible screen 3 and the roller 41 has been increased, thereby make the frictional force between flexible screen 3 and the roller 41 increase, avoid the flexible screen 3 damage that takes place between flexible screen 3 and the roller 41 in the pulling out process, and then can avoid causing because of skidding, and further improve flexible screen 3's practical life. Simultaneously, because the flexible screen 3 is always propped against the top outer surface of the pretightening shaft 42 in the pulling-out process, the flexible screen 3 is always supported by the pretightening shaft 42, after the flexible screen 3 is pulled out, the flexible screen 3 can be always meshed with the outer surface of the roller 41 under the action of the supporting force of the pretightening shaft 42, and further, the part of the flexible screen 3, which is positioned on the roller 41, can be prevented from being tilted, and the flatness of the flexible screen 3 is improved.
Alternatively, as shown in fig. 4, the slide housing 1 includes an upper cover 11 and a lower cover 12; the upper cover 11 and the lower cover 12 are fixedly connected, a mounting notch is formed in the connecting position of the end part of the upper cover 11 and the end part of the lower cover 12, the mounting notch is positioned at the top of the slider cover 1, the roller 41 is hinged in the mounting notch, and a bus bar at the top of the roller 41 and the outer surface of the upper cover 11 are positioned on the same plane.
It should be noted that, since the bus at the top of the roller 41 and the outer surface of the upper cover 11 are located on the same plane, the flexible screen 3 at the top of the roller 41 and the flexible screen 3 at the upper cover 11 of the sliding housing 1 can be located on the same horizontal plane no matter in the process of pulling out or retracting the flexible screen 3, so that an obvious boundary line is not generated after the flexible screen 3 is pulled out, and the display effect of the display device is improved.
Optionally, the display device further comprises a driving assembly 5, and the transmission member 43 comprises a transmission gear 431 and a rack 432; the transmission gear 431 is meshed with the rack 432, the driving assembly 5 is connected with the transmission gear 431, the driving assembly 5 is arranged in the fixed casing 2, the driving assembly 5 drives the transmission gear 431 to rotate, and the second end of the flexible screen 3 is fixed on the non-tooth surface of the rack 432; the rack 432 is switched between a first state in which the rack 432 moves in a first direction and a second state in which the rack 432 moves in a second direction under the drive of the transmission gear 431, wherein the first direction is a direction in which the rack 432 is away from the pre-tightening shaft 42, and the second direction is a direction in which the rack 432 is close to the pre-tightening shaft 42.
The rack gear 432 includes a tooth surface and a non-tooth surface, the tooth surface of the rack gear 432 meshes with the transmission gear 431, and the second end of the flexible screen 3 is fixed to the non-tooth surface of the rack gear 432. In the first state, the driving assembly 5 drives the transmission gear 431 to rotate clockwise, so that the rack 432 moves along the first direction under the driving of the transmission gear 431, and the second end of the flexible screen 3 moves along the direction away from the pretightening shaft 42 along with the rack 432 due to the fact that the second end of the flexible screen 3 is fixed on the non-tooth surface of the rack 432, so that the flexible screen 3 is pulled back, the flexible screen 3 is contained back in the inner cavity of the sliding casing 1 again, and meanwhile, the pretightening shaft 42 and the rotating shaft are driven to rotate by friction force due to the flexible screen 3, so that the sliding casing 1 is synchronously retracted and contained back in the inner cavity of the fixed casing 2 again. In the second state, the driving assembly 5 drives the transmission gear 431 to rotate anticlockwise, so that the rack 432 moves along the second direction under the driving of the transmission gear 431, and the second end of the flexible screen 3 moves along with the rack 432 in the direction close to the pretightening shaft 42 due to the fact that the second end of the flexible screen 3 is fixed on the non-tooth surface of the rack 432, so that the flexible screen 3 is pulled out, and the display proportion of the display device is changed. It should be noted that, as shown in fig. 3, the display device provided in the embodiment of the present invention may be switched between different display ratios to adapt to display requirements of different users, and the exemplary display ratio may be 18:9 and 4:3, 18:9 can correspond to the display proportion of the mobile phone, 4:3 may correspond to a display ratio of the tablet pc, which is not limited in the embodiment of the present invention.
Alternatively, as shown in fig. 1, in the first state, both ends of the rack 432 are located inside the fixed housing 2, and as shown in fig. 2, in the second state, one end of the rack 432 near the pre-tightening shaft 42 is located inside the sliding housing 1.
It should be noted that, in the first state, since both ends of the rack 432 are located inside the fixed housing 2, and thus provide sufficient movement space for the rack 432, in the second state, since one end of the rack 432 close to the pre-tightening shaft 42 is located inside the sliding housing 1, the pulling stroke of the flexible screen 3 can be shortened, so that the display ratio of the display device can be switched more rapidly.
Optionally, the display device further includes a control component, and the driving component 5 is a driving motor; the control component is arranged in the fixed shell 2 and is electrically connected with the driving motor; the transmission gear 431 is connected with the output shaft of the driving motor, and the control assembly controls the rotation of the driving motor.
Specifically, the control component can include circuit controls such as circuit board subassembly, treater, like this, can control direction of rotation and rotational speed of driving motor output shaft through the control component, and then control direction of motion and the velocity of motion of drive gear 431 realize the quick switch of display device display ratio for the switching response is comparatively rapid, and then reduces the delay of switching. It should be noted that, when the control assembly includes a circuit board assembly, the circuit board assembly may be any one of a single-sided board type printed circuit board, a double-sided board type printed circuit board, a four-layer board type printed circuit board, a six-layer board type printed circuit board, and other multi-layer printed circuit boards, and the circuit board assembly is a flexible circuit board, so that the circuit board assembly may adapt to a complex installation environment inside the display device.
Alternatively, as shown in fig. 4, the diameter of the pre-tightening shaft 42 is smaller than the diameter of the roller 41.
Specifically, in the case where the diameter of the pre-tightening shaft 42 is smaller than the diameter of the roller 41, the relative area of contact between the flexible screen 3 and the outer surface of the roller 41 can be increased, the friction between the flexible screen 3 and the roller 41 can be increased, and thus the occurrence of slipping between the roller 41 and the flexible screen 3 can be avoided.
Alternatively, the pre-tightening shaft 42 may include a shaft sleeve 423 and a shaft core 424; the shaft core 424 is fixed on the sliding casing, the shaft sleeve 423 is sleeved on the shaft core 424, the shaft sleeve 423 rotates along the circumferential surface of the shaft core 424, and the shaft sleeve 423 is made of flexible materials.
Specifically, the shaft sleeve 423 may be a ring with a certain elasticity such as rubber and polyethylene, the shaft sleeve 423 is sleeved on the shaft core 424, and the shaft sleeve 423 rotates along the circumferential surface of the shaft core 424, so that the flexible screen 3 and the pretightening shaft 42 are in contact with the shaft sleeve 423, static friction force between the flexible screen 3 and the supporting member can be increased, scratch of the flexible screen 3 is not caused, and the service life of the flexible screen 3 is further prolonged.
Alternatively, the end of the roller 41 is provided with a first gear 411, the end of the pre-tightening shaft 42 is provided with a second gear 421, and the first gear 411 and the second gear 421 are engaged.
It should be noted that, by the engagement of the first gear 411 and the second gear 421, the rotation amount of the roller 41 and the rotation amount of the pre-tightening shaft 42 may be made equal, so as to realize synchronous rotation of the roller 41 and the pre-tightening shaft 42, and further avoid occurrence of slipping.
Alternatively, the linear velocity of the first gear 411 and the linear velocity of the second gear 421 are equal.
It should be noted that, by adjusting the transmission ratio of the first gear 411 and the second gear 421, the linear speed of the first gear 411 and the linear speed of the second gear 421 are equal, and when the linear speed of the first gear 411 and the linear speed of the second gear 421 are equal, the linear speed of the roller 41 and the linear speed of the pre-tightening shaft 42 are equal to each other, which is equal to the speed of pulling out or retracting the flexible screen 3, so as to realize rotation synchronization of the flexible screen 3 and the roller 41, further avoid slipping, and further reduce damage of the flexible screen 3. The service life of the flexible screen 3 is improved. In addition, the transmission ratio of the first gear 411 and the transmission ratio of the second gear 421 may be determined by the number of teeth of the first gear 411 and the number of teeth of the second gear 421, which is not limited in the embodiment of the present invention.
Alternatively, as shown in fig. 3 and 5, both ends of the roller 41 are provided with first gears 411, and both ends of the pre-tightening shaft 42 are provided with second gears 421.
It should be noted that, through all setting up first gear 411 at the both ends of roller bearing 41, the both ends of pretightning axle 42 all set up second gear 421 for flexible screen 3's both ends all have a pair of first gear 411 and second gear 421 to guide, avoid pulling out or the in-process of retracting at flexible screen 3, unilateral atress makes flexible screen 3 pull out or the in-process of retracting to unilateral skew, makes flexible screen 3's motion more mild.
As can be seen from the above embodiments, in the present embodiment, since the first end of the flexible screen 3 is fixed to the fixed housing 2, the second end of the flexible screen 3 is wound around the roller 41 and fixed to the transmission member 43, the pre-tightening shaft 42 is hinged between the roller 41 and the transmission member 43, and the outer surface of the pre-tightening shaft 42 is pressed against the flexible screen 3. Like this, when the display device's display proportion needs to be increased, can be to keeping away from the direction pulling slip casing 1 of fixed casing 2, the flexible screen 3 that is located slip casing 1 is under the butt of slip casing 1, along the surface of pretightning shaft 42 and the surface of roller bearing 41 are pulled out, in the in-process of pulling out, because flexible screen 3 and roller bearing 41 are convoluteed, make the surface of flexible screen 3 and roller bearing 41 take place clockwise rotation under the effect of frictional force, and then make the part that flexible screen 3 is located slip casing 1 under the guide of roller bearing 41, and because the surface of pretightning shaft 42 is in the in-process of pulling out is supported the flexible screen 3 all the time, and then make flexible screen 3 pass through roller bearing 41 and pretightning shaft 42 in proper order, and then can increase the cladding angle of flexible screen 3 and roller bearing 41, and then increase the area of contact between flexible screen 3 and the roller bearing 41, thereby make the frictional force increase, avoid the flexible screen 3 damage because of taking place between flexible screen 3 and the roller bearing 41 in the pulling out process, and then can avoid the practical life that causes of skidding of flexible screen 3. Meanwhile, the outer surface of the top of the pre-tightening shaft 42 always supports against the flexible screen 3 in the pulling-out or retracting process, so that the flexible screen 3 is always supported by the pre-tightening shaft 42, after the flexible screen 3 is pulled out, the flexible screen 3 can be always engaged with the outer surface of the roller 41 under the action of the supporting force of the pre-tightening shaft 42, and further the part of the flexible screen 3, which is positioned on the roller 41, can be prevented from being tilted, and the flatness of the flexible screen 3 is improved.
Example two
The second embodiment of the present invention further provides an electronic device, where the electronic device includes any one of the display devices described in the foregoing embodiments, and the beneficial effects of the electronic device are consistent with those of the display device, which is not described in detail herein.
It should be noted that, the electronic device may be: the embodiments of the present invention are not limited to a mobile phone, tablet computer, electronic book reader, MP3 player, MP4 player, laptop, car computer, desktop computer, set-top box, smart television, or wearable device.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.
The display device and the electronic device provided by the invention are described in detail, and specific examples are applied to illustrate the principle and the implementation of the invention, and the description of the above examples is only used for helping to understand the method and the core idea of the invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (10)
1. A display device, characterized in that the display device comprises: the device comprises a sliding shell, a fixed shell, a flexible screen and a conveying assembly;
the sliding shell is connected with the fixed shell in a sliding way;
the conveying assembly comprises a rolling shaft, a pre-tightening shaft and a transmission piece;
the roller and the pre-tightening shaft are both hinged with the sliding machine shell, the transmission part is fixed in the fixed machine shell, the first end of the flexible screen is fixed on the fixed machine shell, the flexible screen covers the top outer surface of the fixed machine shell, the second end of the flexible screen is wound around the roller and fixed on the transmission part, the pre-tightening shaft is positioned between the roller and the transmission part, and the top outer surface of the pre-tightening shaft is propped against the flexible screen;
the end part of the rolling shaft is provided with a first gear, the end part of the pre-tightening shaft is provided with a second gear, and the first gear is meshed with the second gear;
the diameter of the pre-tightening shaft is smaller than that of the rolling shaft;
the sliding shell comprises an upper cover and a lower cover;
the upper cover is fixedly connected with the lower cover, a mounting notch is formed in the connecting position of the end part of the upper cover and the end part of the lower cover, the rolling shaft is hinged to the mounting notch, and the bus at the top of the rolling shaft and the outer surface of the upper cover are located on the same plane.
2. The display device of claim 1, further comprising a drive assembly, the transmission comprising a transmission gear and a rack;
the driving gear is meshed with the rack, the driving assembly is connected with the driving gear, the driving assembly is arranged inside the fixed casing, the driving assembly drives the driving gear to rotate, and the second end of the flexible screen is fixed on the non-tooth surface of the rack;
under the drive of the transmission gear, the rack is switched between a first state and a second state, in the first state, the rack moves along a first direction, in the second state, the rack moves along a second direction, wherein the first direction is the direction that the rack is away from the pre-tightening shaft, and the second direction is the direction that the rack is close to the pre-tightening shaft.
3. The display device according to claim 2, wherein in the first state, both ends of the rack are located inside the fixed housing, and in the second state, one end of the rack near the pre-tightening shaft is located inside the sliding housing.
4. The display device of claim 2, further comprising a control assembly, the drive assembly being a drive motor;
the control assembly is arranged in the fixed shell and is electrically connected with the driving motor;
the transmission gear is connected with the output shaft of the driving motor, and the control assembly controls the driving motor to rotate.
5. The display device of claim 1, wherein the pre-tightening shaft comprises a shaft sleeve and a shaft core;
the shaft core is fixed on the sliding shell, the shaft sleeve is sleeved on the shaft core, the shaft sleeve rotates along the circumferential surface of the shaft core, and the shaft sleeve is made of flexible materials.
6. The display device according to claim 1, wherein a linear speed of the first gear and a linear speed of the second gear are equal.
7. The display device according to claim 1, wherein the first gears are provided at both ends of the roller shaft, and the second gears are provided at both ends of the pre-tightening shaft.
8. The display device according to claim 1, wherein a slide rail is provided on an inner wall of the fixed housing, and a slider is provided on an outer wall of the sliding housing;
the sliding block is in sliding connection in the sliding rail and slides along the length direction of the sliding rail, and the length direction of the sliding rail is consistent with the sliding direction of the sliding shell.
9. The display device of claim 1, further comprising a first bearing and a second bearing;
the first bearing and the second bearing are fixed in the sliding machine shell, the first bearing is sleeved on the rolling shaft, and the second bearing is sleeved on the pre-tightening shaft.
10. An electronic device, characterized in that the electronic device comprises a display device according to any one of claims 1-9.
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| CN202010682613.3A CN111768709B (en) | 2020-07-15 | 2020-07-15 | Display device and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112396970B (en) * | 2020-12-11 | 2022-08-23 | 合肥维信诺科技有限公司 | Display device |
| CN112599009B (en) * | 2020-12-16 | 2022-11-22 | 维沃移动通信有限公司 | Electronic device |
| CN114822226A (en) * | 2021-01-19 | 2022-07-29 | 北京小米移动软件有限公司 | Electronic device |
| CN112797277B (en) * | 2021-01-27 | 2022-11-11 | 昆山国显光电有限公司 | Supporting structural part and display device |
| CN112882540B (en) * | 2021-02-07 | 2024-02-02 | 维沃移动通信有限公司 | Electronic equipment |
| CN112991955B (en) * | 2021-03-12 | 2023-07-04 | 武汉华星光电半导体显示技术有限公司 | Flexible display module and flexible display device |
| CN113066368A (en) * | 2021-03-18 | 2021-07-02 | 武汉华星光电半导体显示技术有限公司 | Display device |
| CN113259511B (en) * | 2021-05-14 | 2024-03-29 | 维沃移动通信有限公司 | Electronic equipment |
| CN113364905B (en) * | 2021-06-08 | 2023-08-08 | 维沃移动通信有限公司 | Electronic equipment |
| CN113707017B (en) * | 2021-08-24 | 2022-08-19 | 联想(北京)有限公司 | Flexible structure's tension mechanism and electronic equipment |
| CN114637374B (en) * | 2022-03-30 | 2024-01-12 | 湖北长江新型显示产业创新中心有限公司 | Flexible screen display device and electronic equipment |
| CN114913771B (en) * | 2022-03-31 | 2023-08-18 | 联想(北京)有限公司 | Electronic equipment |
| WO2023225969A1 (en) * | 2022-05-26 | 2023-11-30 | 北京小米移动软件有限公司 | Electronic device |
| CN115240559B (en) * | 2022-08-15 | 2023-10-13 | 维沃移动通信有限公司 | Electronic equipment |
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| CN111243440A (en) * | 2020-03-11 | 2020-06-05 | 昆山国显光电有限公司 | Flexible display device |
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| US8711566B2 (en) * | 2011-09-02 | 2014-04-29 | Microsoft Corporation | Expandable mobile device |
| EP3543824A1 (en) * | 2018-03-21 | 2019-09-25 | InterDigital CE Patent Holdings | Retractable display device |
| KR102468068B1 (en) * | 2018-07-13 | 2022-11-16 | 엘지디스플레이 주식회사 | Flexible display apparatus |
| CN109979329B (en) * | 2019-04-29 | 2023-11-28 | 武汉华星光电半导体显示技术有限公司 | Flexible display device |
| CN110322792A (en) * | 2019-06-28 | 2019-10-11 | 昆山国显光电有限公司 | Flexible display apparatus and electronic equipment |
| CN111243438B (en) * | 2020-02-07 | 2022-01-28 | 武汉华星光电半导体显示技术有限公司 | Display device |
| CN111402731B (en) * | 2020-03-25 | 2021-05-07 | 武汉华星光电半导体显示技术有限公司 | Display device and display apparatus |
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