Disclosure of Invention
In order to solve at least one problem mentioned in the background art, the invention provides a display device, which can prevent a flexible screen body from protruding in an outgoing area, improve the flatness of the flexible screen body and improve the display effect.
In order to achieve the above object, the present invention provides a display device including:
the shell is provided with a containing cavity and a display port communicated with the containing cavity.
The flexible screen body and the rotating shaft assembly, the rotating shaft assembly and at least part of the flexible screen body are located in the accommodating cavity, and at least part of the flexible screen body is wound on the rotating shaft assembly and is unfolded or wound on the rotating shaft assembly.
The rotating shaft assembly comprises a plurality of rotating shafts, the rotating shafts comprise at least one adjusting rotating shaft, the adjusting rotating shaft moves, and acting force towards the winding center of the flexible screen body is applied to the flexible screen body at the display opening.
According to the display device provided by the invention, the flexible screen body can be wound on the rotating shaft assembly through the rotating shaft assembly, so that the screen body can be unfolded and rolled, different rotating shafts can be mutually matched through the rotating shafts, the curling state of the flexible screen body is adjusted, the adjusting rotating shafts can be arranged, the adjusting rotating shafts can apply acting force to the flexible screen body through the movement of the adjusting rotating shafts, the acting force can decompose the split acting force towards the winding center on the flexible screen body at the display opening, the split acting force can pull the flexible screen body towards the winding center, the bulge of the flexible screen body at the display opening (the leading-out area) can be avoided to the greatest extent, the flatness of the flexible screen body is improved, and the display effect of the display device is improved.
In the above display device, optionally, the adjusting shaft is located at a winding inner side of the flexible screen body, and in a process of unwinding the flexible screen body on the shaft assembly, the adjusting shaft moves toward a side far away from the winding center, and applies a force toward the winding center to the flexible screen body located at the display opening.
Like this, exert effort to flexible screen body through adjusting the pivot inboard at the winding, can make flexible screen body taut to produce the branch effort towards winding center on the flexible screen body of display port department, in addition, this kind of setting mode can reduce the occupation space of pivot subassembly in the holding intracavity portion, is favorable to reducing the casing size.
In the above display device, optionally, the adjusting shaft is located at a winding outer side of the flexible screen, and in a process of unwinding the flexible screen on the shaft assembly, the adjusting shaft moves toward a side close to the winding center, and applies a force toward the winding center to the flexible screen located at the display opening.
Like this, exert effort to flexible screen body through adjusting the pivot in the coiling outside, can make flexible screen body taut to produce the branch effort towards the center of coiling on the flexible screen body of display port department, in addition, this kind of setting up mode can avoid adjusting pivot and other pivots mutual interference.
In the above display device, optionally, the flexible screen body includes a display surface located outside the display port.
The inside of casing is provided with the pivot driving piece, the pivot driving piece with adjust the pivot is connected, and drives adjust the pivot along being parallel to the direction of display surface removes.
Therefore, the rotating shaft driving piece can drive the adjusting rotating shaft to move in the direction parallel to the display surface, so that acting force can be applied to the flexible screen body.
In the above display device, optionally, the plurality of rotating shafts include a supporting rotating shaft, and the supporting rotating shaft is located at the winding inner side of the flexible screen body.
And the support rotating shaft is positioned at the display opening, an extraction area is formed between the support rotating shaft and the shell, and the flexible screen body extends out of the shell from the extraction area.
Therefore, the flexible screen body can be kept horizontal after being unfolded from the leading-out area by arranging the supporting rotating shaft, and the flexible screen body and the display surface of the leading-out area are kept horizontal.
In the above display device, optionally, the supporting shaft is fixedly disposed in the accommodating cavity of the housing.
Therefore, the position of the flexible screen body in the leading-out area can be fixed, and the flexible screen body can be unfolded and rolled conveniently.
In the above display device, optionally, the plurality of rotating shafts are arranged at intervals in the moving direction of the flexible screen body, the flexible screen body has a first linear velocity on the rotating shaft at the moving front end, and the flexible screen body has a second linear velocity on the rotating shaft at the moving rear end.
The first linear velocity is greater than the second linear velocity.
Through setting up different linear velocities, can make the flexible screen body have the tensioning force on pivot subassembly, like this, adjust the pivot and exert the effort to the flexible screen body in the horizontal direction after, be favorable to breaking out the minute effort towards the winding center on the flexible screen body.
In the above display device, optionally, the plurality of rotating shafts include an auxiliary rotating shaft, and the auxiliary rotating shaft is located at a side of the housing away from the display opening and is located at a winding inner side of the flexible screen body.
Therefore, the winding radius of the flexible screen body can be adjusted through the auxiliary rotating shaft, so that the flexible screen body has a better winding curved surface.
In the above display device, optionally, the auxiliary rotating shaft and the supporting rotating shaft are respectively located at two opposite sides of the winding center.
In the moving direction of the flexible screen body, the adjusting rotating shaft is positioned between the auxiliary rotating shaft and the supporting rotating shaft.
Therefore, the distribution of the rotating shaft assemblies can be optimized, and the space of the rotating shaft assemblies occupying the accommodating cavity is reduced as much as possible.
In the above display device, optionally, the diameters of all the rotating shafts are equal.
Therefore, the standardization rate of the rotating shaft accessories can be improved, and the rotating shaft is convenient to assemble and replace.
The construction of the present invention and other objects and advantages thereof will be more readily understood from the description of the preferred embodiment taken in conjunction with the accompanying drawings.
Detailed Description
As described in the background art, fig. 1 is a schematic view showing the structure of a screen and a reel in the related art. As shown in fig. 1, when the screen 1 is unwound, a portion of the screen 1 is wound on the reel 2, because the screen 1 has a certain rigidity and bending inertia, the curled screen 1 cannot be completely flattened after reaching the initial bending region 3, so that the screen 1 in the initial bending region 3 is easy to generate protrusions 4, resulting in poor flatness of the screen 1 and affecting the display effect.
According to the technical problem, the flexible screen body can be wound on the rotating shaft assembly through the rotating shaft assembly, the screen body can be unfolded and rolled, different rotating shafts can be mutually matched through the rotating shaft assembly, the curling state of the flexible screen body is adjusted, the adjusting rotating shaft is arranged, the adjusting rotating shaft can exert acting force on the flexible screen body through movement of the adjusting rotating shaft, the acting force can decompose a split acting force towards the winding center on the flexible screen body at the display opening, the split acting force can pull the flexible screen body towards the winding center, the flexible screen body can be prevented from forming bulges at the display opening (the leading-out area) to the greatest extent, the flatness of the flexible screen body is improved, and the display effect of the display device is improved.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "coupled" should be interpreted broadly, as for example, whether fixedly coupled, indirectly coupled through intermediaries, in communication with each other, or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present invention. Fig. 3 is a schematic structural diagram of a second type of rotating shaft assembly and a screen in the display device according to the embodiment of the present invention. Fig. 4 is a schematic structural diagram of a third rotating shaft assembly and a screen in a display device according to an embodiment of the present invention. Fig. 5 is a schematic structural diagram of a fourth rotating shaft assembly and a screen in the display device according to the embodiment of the present invention. Fig. 6 is a schematic structural diagram of a fifth rotating shaft assembly and a screen in the display device according to the embodiment of the invention. Referring to fig. 2 to 6, an embodiment of the present invention provides a display device.
It should be noted that the display device may be a mobile or fixed terminal having a flexible screen such as a mobile phone, a television, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a personal digital assistant (Personal Digital Assistant, PDA), and a virtual reality device.
As shown in fig. 2, the display device 100 includes: the housing 10, the housing 10 has a housing chamber 11 and a display port communicating with the housing chamber 11. The accommodating cavity 11 is located inside the housing 10, the display opening is located at an opening of the accommodating cavity 11, and the flexible screen 20 is located at the display opening, so that the flexible screen 20 can display a picture.
The display device 100 further includes: the flexible screen body 20 and the rotating shaft assembly 30, the rotating shaft assembly 30 and at least part of the flexible screen body 20 are located in the accommodating cavity 11, part of the flexible screen body 20 is wound on the rotating shaft assembly 30, and the flexible screen body 20 can be unfolded or wound on the rotating shaft assembly 30. For example: when the display device 100 is used, the flexible screen body 20 can be unfolded, the display surface of the flexible screen body 20 is enlarged, when the display device 100 is not used, the flexible screen body 20 can be rolled up, the exposed size of the flexible screen body 20 is reduced, and the display device 100 is convenient to carry or store.
Specifically, as shown in fig. 2, the rotating shaft assembly 30 includes a plurality of rotating shafts, and by providing a plurality of rotating shafts, different rotating shafts can be mutually matched to adjust the curl state of the flexible screen 20. The plurality of shafts includes at least one adjustment shaft 31, the adjustment shaft 31 being movable in the direction a and exerting a force on the flexible screen 20 at the display opening towards the winding center 50 of the flexible screen 20, it being understood that this is specifically referred to herein as exerting a vertically downward (as exemplified in fig. 2) split force on the flexible screen 20 at the lead out area 12. The split force can pull the flexible screen 20 towards the winding center 50, so that the flexible screen 20 can be prevented from forming a bulge at the display opening (the lead-out area 12) to the greatest extent, the flatness of the flexible screen 20 can be improved, and the display effect of the display device 100 can be improved. Specific force analysis is set forth in the following description in conjunction with the accompanying drawings.
It should be noted that, the number of the rotating shafts is different, the setting positions are different, the winding center 50 may be changed, and the winding center 50 in the embodiment of the present invention refers to the center of the circle after the flexible screen 20 is bent.
It should be noted that, when the flexible screen 20 is unfolded, the moving direction of the adjusting shaft 31 in the a direction may have two directions, that is, the moving direction is toward the left side or the right side in fig. 2, the relative positions of the adjusting shaft 31 and the flexible screen 20 are different, the moving directions of the adjusting shaft 31 are also different, and the specific moving direction of the adjusting shaft 31 is set according to the position where the adjusting shaft 31 is located.
It should be noted that the number of the rotating shafts may be 2, 3, 4 or more, the number of the adjusting rotating shafts 31 may be 1 or more, the total number of the rotating shafts and the number of the adjusting rotating shafts 31 are not limited in the embodiment of the present invention, and a user may select according to actual needs.
In one possible embodiment, as shown in fig. 2 and 4, the adjustment shaft 31 is located at the winding inner side of the flexible screen 20, and during the unwinding of the flexible screen 20 on the shaft assembly 30, the adjustment shaft 31 moves toward the side away from the winding center 50, and applies a force toward the winding center 50 to the flexible screen 20 located at the display port. In this way, the flexible screen 20 can be tensioned by adjusting the rotating shaft 31 to apply a force to the flexible screen 20 on the inner side of winding, so that a split force towards the winding center 50 is generated on the flexible screen 20 of the lead-out area 12.
Specifically, as shown in fig. 4, the adjusting shaft 31 moves toward the side away from the winding center 50 to apply the force F to the flexible screen 201 Acting force F1 The flexible screen 20 is pulled taut, and the wound flexible screen 20 generates a tension force, so that the flexible screen 20 at the lead-out area 12 also has a force F2 Acting force F2 Can decompose the partial force F toward the winding center 50 (vertically downward)22 And a partial force F in the a direction21 Force F of division22 Acting on the flexible screen 20 of the lead-out area 12, the flexible screen 20 can be prevented from protruding upwards to the greatest extent, and the flatness of the flexible screen 20 can be improved.
In another possible embodiment, as shown in fig. 3, 5 and 6, the adjusting spindle 31 is located at the winding outer side of the flexible screen 20, and the adjusting spindle 31 moves toward the side near the winding center 50 and applies a force toward the winding center 50 to the flexible screen 20 located at the display port during the unwinding of the flexible screen 20 on the spindle assembly 30. In this way, by exerting a force on the flexible screen 20 outside the winding by the adjustment shaft 31, the flexible screen 20 can be tensioned, so that a split force towards the winding center 50 is generated on the flexible screen 20 of the lead-out zone 12, and in addition, this arrangement avoids mutual interference of the adjustment shaft 31 and the other shafts.
Specifically, as shown in fig. 3, the regulating spindle 31 is moved toward the side near the winding center 50,applying force F to flexible screen 203 Acting force F3 The flexible screen 20 is pulled taut, and the wound flexible screen 20 generates a tension force, so that the flexible screen 20 at the lead-out area 12 also has a force F2 Acting force F2 Can decompose the partial force F toward the winding center 50 (vertically downward)22 And a partial force F in the a direction21 Force F of division22 Acting on the flexible screen 20 of the lead-out area 12, the flexible screen 20 can be prevented from protruding upwards to the greatest extent, and the flatness of the flexible screen 20 can be improved.
The "inside of winding" refers to the side of the flexible screen 20 near the winding center 50, and the "outside of winding" refers to the side of the flexible screen 20 away from the winding center 50.
It should be noted that, the straight line representing the acting force in the drawings of the embodiment of the present invention is only schematic for the direction of the acting force, and is independent of the magnitude of the acting force.
Specifically, the flexible screen 20 includes a display surface (not shown) located outside the display opening, and it is understood that the portions of the flexible screen 20 exposed to the display opening form the display surface, and the display surfaces are parallel in the horizontal direction.
As shown in fig. 2, the inside of the housing 10 may be provided with a rotation shaft driving member 34, the rotation shaft driving member 34 being connected to the adjustment rotation shaft 31, the rotation shaft driving member 34 driving the adjustment rotation shaft 31 to move in a direction parallel to the display surface, i.e., the adjustment rotation shaft 31 to move in the a direction. In this way, the adjusting shaft 31 is driven to move in the direction a by the shaft driving member 34, so that a force can be applied to the flexible screen 20 in the direction a.
It should be noted that, the adjusting shaft 31 may be driven without the shaft driving member 34, and when the shaft assembly 30 has a plurality of shafts, the adjusting shaft 31 may be pushed to move through interaction between the different shafts.
Specifically, as shown in fig. 2, the plurality of rotating shafts include a supporting rotating shaft 32, the supporting rotating shaft 32 is located at the winding inner side of the flexible screen 20, and the supporting rotating shaft 32 is located at the display opening of the housing 10, and an extraction area 12 is formed between the supporting rotating shaft 32 and the housing 10, and the flexible screen 20 extends out of the housing 10 from the extraction area 12. The main function of the support rotating shaft 32 is to support the winding end of the flexible screen 20 through the support rotating shaft 32, and ensure that the flexible screen 20 can be kept horizontal after being unfolded from the lead-out area 12, and ensure that the flexible screen 20 and the display surface of the lead-out area 12 are kept horizontal.
In one possible embodiment, the support shaft 32 is fixedly arranged in the receiving space 11 of the housing 10. In this way, the flexible screen 20 can be fixed at the position of the lead-out area 12, so that the flexible screen 20 can be unfolded and rolled from the fixed position, and the flexible screen 20 can be unfolded and rolled conveniently.
In one possible embodiment, as shown in fig. 2, a plurality of rotating shafts may be arranged at intervals in the moving direction of the flexible screen 20, and the flexible screen 20 has a first linear velocity on the rotating shaft at the moving front end and the flexible screen 20 has a second linear velocity on the rotating shaft at the moving rear end. The first linear velocity is greater than the second linear velocity. By setting different linear speeds, the flexible screen 20 can have tension force on the rotating shaft assembly 30, so that after the rotating shaft 31 is adjusted to apply force to the flexible screen 20 in the horizontal direction, the split force towards the winding center 50 can be decomposed on the flexible screen 20.
For example, as shown in fig. 2, when the flexible screen 20 is unfolded, the supporting shaft 32 is located at the moving front end, the supporting shaft 32 has a first linear velocity, the adjusting shaft 31 and the auxiliary shaft 33 are both located at the moving rear end with respect to the supporting shaft 32, at least one of the adjusting shaft 31 and the auxiliary shaft 33 has a second linear velocity, and the second linear velocity is smaller than the first linear velocity, so that the flexible screen 20 can have a tension between two shafts having different linear velocities.
It should be noted that, when the flexible screen 20 is rolled, the linear speeds of the different rotating shafts may be equal, so that the flexible screen 20 can be rolled more uniformly. In addition, different linear speeds may be set, for example, the support shaft 32 is located at the moving rear end, the support shaft 32 has a second linear speed, the adjusting shaft 31 and the auxiliary shaft 33 are both located at the moving front end relative to the support shaft 32, at least one of the adjusting shaft 31 and the auxiliary shaft 33 has a first linear speed, and the first linear speed is greater than the second linear speed, so that the flexible screen 20 can be pulled, and a wrinkling phenomenon of the flexible screen 20 during winding is avoided.
It should be noted that, the difference between the first linear velocity and the second linear velocity should not be too large, and if the difference is too large, the flexible screen 20 may be damaged. Illustratively, the ratio of the second linear velocity to the first linear velocity may be between 0.95 and 0.98, and the difference between the first linear velocity and the second linear velocity is set to a smaller value, so that the purpose of stretching the flexible screen 20 may be achieved, and damage to the flexible screen 20 may be prevented. The amount of displacement of the rotating shaft 31 in the direction a may be adjusted according to the actual situation. The embodiment of the invention does not limit the difference value of the linear velocity and the displacement.
In one possible embodiment, as shown in fig. 2 and 3, the shaft includes an auxiliary shaft 33, and the auxiliary shaft 33 is located at a side of the housing 10 away from the display port and is located at a winding inner side of the flexible screen 20. Thus, the winding radius of the flexible screen 20 can be adjusted by the auxiliary rotating shaft 33, so that the flexible screen 20 has a better winding curved surface. Illustratively, the auxiliary rotating shaft 33 is close to the supporting rotating shaft 32, so that the winding radius can be reduced, and the auxiliary rotating shaft 33 is far from the supporting rotating shaft 32, so that the winding radius can be enlarged.
Specifically, as shown in fig. 2 and 3, the auxiliary rotating shaft 33 and the support rotating shaft 32 are located at opposite sides of the winding center 50, respectively. In the moving direction of the flexible screen 20, i.e., in the winding path of the flexible screen 20, the adjustment shaft 31 is located between the auxiliary shaft 33 and the support shaft 32. In this way, the distribution of the spindle assemblies 30 can be optimized and the space occupied by the housing cavity 11 can be reduced as much as possible.
The support shaft 32 and the auxiliary shaft 33 may have a distance therebetween, and may rotate or abut against each other.
Specifically, the diameters of all the rotating shafts can be equal, so that the standardization rate of the rotating shaft accessories can be improved, and the rotating shafts can be conveniently assembled and replaced. In addition, different diameters can be set for different rotating shafts, as shown in fig. 6, the diameters of the supporting rotating shaft 32, the adjusting rotating shaft 31 and the auxiliary rotating shaft 33 are different, so that different types of rotating shafts can meet respective functional requirements. The embodiment of the invention does not limit the diameter of the rotating shaft, and a user can select the rotating shaft according to the actual situation.
It should be noted that in the embodiment of the present invention, all the rotating shafts may be driven rotating shafts, or some of the rotating shafts may be driving rotating shafts.
As shown in fig. 2, a fixing portion 40 may be further disposed in the accommodating cavity 11, and a winding end portion of the flexible screen 20 is connected to the fixing portion 40 through an elastic member 41, so that the flexible screen 20 may be pulled by an elastic force to wind.
In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, the meaning of "a plurality" is two or more, unless specifically stated otherwise.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims of this application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of operation in sequences other than those illustrated or described herein, for example. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.