CN112102729B - Display device - Google Patents
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- CN112102729B CN112102729B CN202011058769.0A CN202011058769A CN112102729B CN 112102729 B CN112102729 B CN 112102729B CN 202011058769 A CN202011058769 A CN 202011058769A CN 112102729 B CN112102729 B CN 112102729B
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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Abstract
The application provides a display device, including flexible display panel and the structure of buckling, the structure of buckling is located one side of flexible display panel, and corresponds the setting with flexible display panel's bending zone. The bending structure comprises at least three unidirectional rotating pieces, when the display device is bent towards the second direction, the third rotating pieces positioned in the middle area are bent, so that a first bending state of the display device is obtained, when the display device is bent towards the third direction, the first rotating pieces and the second rotating pieces positioned at two sides are bent, so that a second bending state of the display device is obtained, and the second direction is opposite to the third direction. The display device realizes inward folding along the third rotating piece; then rotate along first rotating member and second rotating member, realize the inflection, and then realize flexible display panel's bidirectional bending.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
The flexible screen is a trend of future mobile electronic products, the flexible screen in the prior art is fixed on a terminal main body, the flexible screen is designed on the inner side of a terminal product in a folding mode, and the flexible screen can be seen after the terminal product is unfolded.
However, in the current technical development, the flexible screen can only be arranged at the folding inner side of the terminal product, and the outward bending cannot be realized.
Disclosure of Invention
In view of this, the present invention provides a display device to solve the problem that the flexible display screen in the prior art cannot be bent in both directions.
In order to achieve the purpose, the invention provides the following technical scheme:
a display device, comprising:
the flexible display panel at least comprises a bending area and two non-bending areas; in the unfolded state, along a first direction, the bending area is positioned between two non-bending areas;
the bending structure is positioned on one side of the flexible display panel and used for driving the bending area to deform, and the shell is supported by the non-bending area and is in sliding connection with the shell;
the bending structure comprises at least three unidirectional rotating pieces;
in an unfolded state, in an orthographic projection of the bending structure on the flexible display panel, along the first direction, the at least three unidirectional rotating pieces comprise a first rotating piece, a second rotating piece and at least one third rotating piece located between the first rotating piece and the second rotating piece;
the display device is bent towards a second direction based on the third rotating piece, and a first bending state is obtained;
the display device is bent towards a third direction based on the first rotating piece and the second rotating piece to obtain a second bent state, wherein the second direction and the third direction are opposite directions.
According to the above technical solution, the display device provided by the present invention includes a flexible display panel and a bending structure, wherein the bending structure is located on one side of the flexible display panel and is disposed corresponding to a bending region of the flexible display panel. The bending structure comprises at least three unidirectional rotating pieces, the unidirectional rotating pieces are arranged in the direction perpendicular to the rotating shaft in the unfolded state of the flexible display panel and comprise a first rotating piece, a second rotating piece and at least one third rotating piece arranged between the first rotating piece and the second rotating piece, when the display device is bent towards the second direction, the third rotating piece positioned in the middle area is bent, so that a first bending state of the display device is obtained, when the display device is bent towards the third direction, the second rotating piece positioned on two sides is bent, so that a second bending state of the display device is obtained, and the second direction is opposite to the third direction. That is, the display device of the present invention is folded inward along the third rotating member; the flexible display panel is folded outwards by rotating along the first rotating piece and the second rotating piece, and then the flexible display panel is bent bidirectionally. That is, the display device of the invention realizes bidirectional bending by using different rotating shafts, and reduces the risk of damage to the flexible display screen caused by the fact that the flexible display panel always depends on single position bending in the bending process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic top view of a display device according to an embodiment of the present invention;
FIG. 2 is a schematic side view of an expanded state of a display device according to an embodiment of the present invention;
FIG. 3 is a schematic side view of an expanded state of a display device according to an embodiment of the present invention;
FIG. 4 is a partial enlarged view of portion A of FIG. 3;
fig. 5 is a schematic top view of the structures corresponding to part a according to the embodiment of the present invention;
FIG. 6 is a side view of a portion of a first housing according to an embodiment of the present invention;
fig. 7 is a partially enlarged structural view of a portion B in fig. 3;
FIG. 8 is a schematic view illustrating a state transition of the third rotating member;
FIG. 9 is a schematic view of the display device shown in FIG. 3 in a first bending state;
FIG. 10 is a diagram illustrating a second bending state of the display device shown in FIG. 3;
FIG. 11 is a schematic cross-sectional view of another display device according to an embodiment of the present invention in an unfolded state;
FIG. 12 is a cross-sectional view of the display device shown in FIG. 11 in a first bent state;
fig. 13 is a cross-sectional view of the display device shown in fig. 11 in a second bent state.
Detailed Description
As mentioned in the background section, prior art flexible screens are typically folded only inward and do not allow outward flexing.
The inventors have found that folding of prior art flexible display devices typically involves only bending in a single direction, typically inwards, i.e. folding the flexible display together with the end product housing on the outside. When the flexible display panel is used, the flexible display device is unfolded and flattened, when the flexible display device is not used, the flexible display panel is folded into the flexible display device, and the terminal product shell is located outside to protect the flexible display panel. However, with the development of foldable electronic devices, the flexible screen is more and more in demand, and if in the using process, the flexible screen is in an unfolded state, the area is large, and the flexible screen is inconvenient to use, a user hopes that the flexible screen can be reversely folded, namely, a large-screen display device is changed into a small-screen display device for use, so that the user can conveniently control the large-screen display device with one hand, and the display device can realize both flat panel display and mobile phone functions. At this time, the flexible display device needs to be folded, and the flexible display screen is located at the outer side. Correspondingly, the flexible display panel folded only inwards in the prior art cannot meet the requirements of users.
Accordingly, the present invention provides a display device, comprising:
the flexible display panel at least comprises a bending area and two non-bending areas; in the unfolded state, along a first direction, the bending area is positioned between two non-bending areas;
the bending structure is positioned on one side of the flexible display panel and used for driving the bending area to deform, and the shell is supported by the non-bending area and is in sliding connection with the shell;
the bending structure comprises at least three unidirectional rotating pieces;
in a spread state, the flexible display panel covers the bending structure along a direction perpendicular to a light-emitting surface of the flexible display panel, and the at least three unidirectional rotating pieces comprise a first rotating piece, a second rotating piece and at least one third rotating piece located between the first rotating piece and the second rotating piece along the first direction;
the display device is bent towards a second direction based on the third rotating piece, and a first bending state is obtained;
the display device is bent towards a third direction based on the first rotating piece and the second rotating piece to obtain a second bent state, wherein the second direction and the third direction are opposite directions.
Through setting up at least three unidirectional rotation piece, use the rotating member that is located middle zone when inwards buckling flexible display panel, and when outwards buckling flexible display panel, use the rotating member that is located both sides to make display device can have the function of inwards buckling and outwards buckling concurrently, realized display device's bidirectional bending purpose.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
Referring to fig. 1, fig. 1 is a schematic top view of a display device according to an embodiment of the present invention; the display device includes: the flexible display panel 11, the flexible display panel 11 includes a bending region 11A and two non-bending regions 11B at least; in the unfolded state, along the first direction X, the bending zone 11A is located between two non-bending zones 11B; it should be noted that, only shown in fig. 1, the display device includes a structure of a bending region and non-bending regions located at two sides of the bending region, and in the practical application process, if the display device needs to perform multi-region bending, a plurality of bending regions and non-bending regions located at two sides of the bending region may be further provided according to the requirement. In this embodiment, the width of the bending region in the first direction X is not limited, and the width of the non-bending region in the first direction X is also not limited, so that the edges can be aligned after the flexible display device is folded, in this embodiment, the widths of the non-bending regions on both sides of the bending region in the first direction X are optionally the same, that is, the widths are symmetric about the central axis of the bending region.
Fig. 2 is a schematic side view of a display device in an unfolded state according to an embodiment of the present invention; the flexible display panel further comprises a bending structure 12 which is positioned on one side of the flexible display panel 11 and is used for driving the bending area 11A to deform, and a shell 13 which is used for supporting the non-bending area 11B, wherein the bending structure 12 is in sliding connection with the shell 13; the bending structure 12 includes at least three unidirectional rotating members.
In the unfolded state, in the orthographic projection of the bending structure on the flexible display panel, along the first direction X, the at least three unidirectional rotating members comprise a first rotating member 121, a second rotating member 122 and at least one third rotating member 123 positioned between the first rotating member 121 and the second rotating member 122; the display device is bent in the second direction Y1 based on the third rotating member 123 to obtain a first bent state; the display device is bent in the third direction Y2 based on the first rotating member 121 and the second rotating member 122, and a second bent state is obtained, wherein the second direction Y1 and the third direction Y2 are opposite directions.
In this embodiment, the second direction Y1 and the third direction Y2 are opposite directions, and both lie in a plane perpendicular to a bending axis (shown as X1 in fig. 1) of the bending structure, that is, a surface of the flexible display panel. The display device is bent in two opposite directions by selecting different unidirectional rotating pieces to rotate.
In the embodiment of the present invention, the number of the third rotating members is not limited, and one, two or more optional third rotating members may be used. When the number of the third rotating members is one, the third rotating members are located between the first rotating member and the second rotating member in the first direction X, optionally, the third rotating members may have the same distance with the first rotating member and the second rotating member, so that the first bending state obtained after the display device is bent inward can keep the non-bending region edges at the two sides of the bending region to be substantially flush. When the number of the third rotating members is two, when the third rotating members are arranged, in the first direction X, the two third rotating members are symmetrical with respect to the symmetry axis of the flexible display panel in the first direction; when the number of the third rotating members is large, the plurality of the third rotating members are arranged along the first direction and symmetrically arranged about the symmetry axis of the flexible display panel, and when the number of the third rotating members is odd, one of the third rotating members is arranged on the folding symmetry axis of the flexible display panel.
Specifically, referring to fig. 3, in the present embodiment, the bending structure 12 includes a first rotating member 121, a second rotating member 122, two third rotating members (123A and 123B) with opposite rotating directions, and a plurality of connecting members, where the connecting members include a first connecting member (124A, 124B) fixedly connecting the first rotating member 121 and the third rotating member 123A, and the second rotating member 122 and the third rotating member 123B, and a second connecting member 125 fixedly connecting the two third rotating members (123A and 123B); and a first sliding portion 126A and a second sliding portion 126B slidably connected to the housing 13; the first sliding part 126A is fixedly connected with the first rotating member 121; the second sliding portion 126B is fixedly connected to the second rotating member 122.
In a direction perpendicular to the plane of the flexible display panel, that is, in the Y1 and Y2 directions shown in fig. 3, the housing 13 includes a first housing 131 and a second housing 132 that are stacked, and a first accommodating chamber for accommodating the first sliding portion 126A and a second accommodating chamber for accommodating the second sliding portion 126B are included between the first housing 131 and the second housing 132; referring to fig. 4, fig. 4 is a partial enlarged view of a portion a in fig. 3, the first accommodating cavity and the second accommodating cavity each include a limiting structure L, and the limiting structures L are used for limiting a sliding distance W of the first sliding portion 126A in the first accommodating cavity, limiting a sliding distance W of the second sliding portion 126B in the second accommodating cavity, and preventing the first sliding portion 126A and the second sliding portion 126B from sliding out of the housing from the accommodating cavities. As shown in fig. 5 and 6, fig. 5 is a schematic top view of the structures corresponding to part a according to the embodiment of the present invention; the sliding portion 126 includes a hollow portion therein, and the first housing 131 includes a left side portion with a thicker thickness and a right side portion with a thinner thickness, wherein the right side portion further includes a limiting structure L protruding relative to a surface thereof, and fig. 6 is a schematic side view of the thinner portion of the first housing.
Referring to fig. 7, fig. 7 is a schematic diagram of a partial enlarged structure of a unidirectional rotation member B according to an embodiment of the present invention, where the structure of the unidirectional rotation member is not limited in this embodiment, as long as unidirectional rotation can be achieved, the unidirectional rotation finger in this embodiment is: the unidirectional rotation member has a limited rotation state in which the unidirectional rotation member can rotate only in a single direction but cannot rotate in the opposite direction. Optionally, the one-way rotating member may be a one-way hinge, that is, the first rotating member, the second rotating member and the third rotating member are all one-way hinges. Referring to fig. 7, it is shown that the one-way hinge has a rotation limiting structure L 'in the limited rotation state, and in the state shown in fig. 7, assuming that the upper right portion of fig. 7 is fixed, the lower left portion can only rotate in the direction of the solid arrow due to the rotation limiting structure L', that is, in the manner shown in fig. 8. And cannot rotate in the direction shown by the dashed arrow in fig. 7.
Limiting structure through holding in the chamber restricts first sliding part and second sliding part in this embodiment, guarantees the sliding connection between structure of buckling and the casing to when buckling to the equidirectional, hold the sliding part, and when the expansion state, can guarantee that the structure of buckling does not break away from the casing, be convenient for follow-up continuation buckle and expand.
Referring to fig. 9, fig. 9 is a schematic view illustrating a first bending state of the display device shown in fig. 3, where the first bending state is inward bending, and it is described here that the inward bending in this embodiment refers to that after bending, the housing is located outside, and the flexible display panel is located inside; the outward bending means that the housing is located inside and the flexible display panel is located outside after being bent.
When the flexible display panel of the display device is bent inward, the first rotating member 121 and the second rotating member 122 are not operated, but the third rotating members 123A and 123B, as shown in fig. 8, are turned to the state of the third rotating member in fig. 8, that is, when the flexible display panel is bent inward; both ends of the one-way hinge are located on the same straight line, and the two third rotating members rotate to have a certain included angle, so as to compare fig. 3 and 9, it can be known that, through the rotation of the two third rotating members 123A and 123B, the display device is bent and folded from the unfolded state shown in fig. 3 to the first bent state shown in fig. 9.
In this embodiment, the second connecting member 125 connecting the two third rotating members may be a rigid connecting member or an elastic connecting member, which is not limited in this embodiment, and the shape of the second connecting member is also not limited in this embodiment. While the first connection member in this embodiment is a first concave sheet far from the flexible display panel with respect to two end points thereof, as shown in fig. 3 and 9, the first concave sheet 126A is located between the first rotation member 121 and one of the third rotation members 123A, and in addition, another first concave sheet 126B symmetrical with respect to the bending axis of the flexible display panel is located between the second rotation member 122 and another of the third rotation members 123B.
In order to support the flexible display panel in the unfolded state, the second connecting member 125 is a tab that is close to the flexible display panel and has two third rotating members as end points. And in the unfolded state of the flexible display panel, the tab 125 is tangential to the surface of the flexible display panel 11 facing the bending structure.
It should be noted that, in this embodiment, fig. 3 and fig. 9 are both cross sections along a direction perpendicular to the folding symmetry axis of the flexible display panel, and therefore, the first concave sheet and the convex sheet of the second connecting member are both a line segment; in fact, in order to enable the second connecting member to support the bending region of the flexible display panel, it is optional in this embodiment that the second connecting member is a plurality of second connecting members disposed along the extending direction of the bending axis of the flexible display panel, or a structure continuous along the extending direction of the bending axis of the flexible display panel, that is, a whole structure in the length direction of the bending region is supported, so that the second connecting member can support the length direction of the bending region.
When the display device provided by the embodiment of the present invention is bent inward, the structure shown in fig. 9 is obtained from fig. 3, it should be noted that two third rotating members with opposite rotating directions are adopted at this time, and it can be known from fig. 3 and fig. 9 that the display device is rotated clockwise by the left first connecting member of the third rotating member located on the left side, and simultaneously, the right first connecting member of the third rotating member located on the right side is rotated counterclockwise by the right first connecting member of the third rotating member located on the right side. That is, the rotation direction of the left third rotating member is clockwise, and the rotation direction of the right third rotating member is counterclockwise, and the first bending state is obtained by the relative rotation of the two third rotating members.
Because the first bending state is obtained only by the rotation of the third rotating member, and no acting force is applied to the second connecting member connecting the two third rotating members, the shape of the second connecting member in this embodiment remains unchanged, and no deformation occurs due to an external force, so the second connecting member in this embodiment may be a rigid connecting member, or may be an elastic connecting member.
It should be noted that, as shown in fig. 3, in the unfolded state, there is a first distance h between the third rotating member and the flexible display panel, that is, along the second direction Y1, there is a first distance h between the third rotating member and the surface of the flexible display panel facing the bending structure; the rotational axis of the third rotation member and the rotational axis of the first rotation member have a second distance W2 in a plane parallel to the surface of the flexible display panel, i.e. in fig. 3 the horizontal distance W2 between the first rotation member and the third rotation member. In order to ensure that the flexible display panel has a sufficient bending space during the bending process and avoid the problem of the bending area being damaged by being squeezed, in the embodiment, referring to fig. 3 and fig. 9, in the first bending state, the difference between the second distance W2 and the first distance h is greater than the bending radius R of the flexible display panel.
Referring to fig. 10, fig. 10 is a schematic view illustrating a second bending state of the display device shown in fig. 3; when the display device is in a second bending state of bending outwards from the unfolding state, the display device is realized by the first rotating piece and the second rotating piece which are positioned at two sides, wherein the rotating directions of the first rotating piece and the second rotating piece are opposite, namely one rotating in the clockwise direction, and the other rotating in the anticlockwise direction. Referring to fig. 3 and 10, the left first rotating member rotates counterclockwise, and the right second rotating member rotates clockwise. When the display device is bent from the unfolded state to the second bent state, please refer to fig. 3 and fig. 10, wherein the portions of the connecting members at the two sides of the two third rotating members 123A and 123B close to the third rotating members are in a straight line, that is, the two third rotating members do not rotate, but only the first rotating member 121 and the second rotating member 122 rotate in two opposite directions.
It should be noted that, when the second bending state is formed, the accommodating space of the bending structure is relatively reduced, so the first sliding portion and the second sliding portion slide towards the inside of the housing in the accommodating cavity, and the sliding distance W between the first sliding portion and the second sliding portion is calculated according to the deformation generated in the bending and unfolding states of the actual flexible display device.
When the flexible display panel is in the second bending state, the bending radius of the flexible display panel is the minimum bending space, and correspondingly, when the second connecting piece is in the rigid structure, the sliding distance between the first sliding part and the second sliding part is only required to be larger than the bending radius of the flexible display panel.
The second connecting member 125 may also be an elastic structure, and the sliding distance between the first sliding portion and the second sliding portion may be reduced by bending the elastic sheet, and the height of the protrusion of the elastic sheet in the relatively unfolded state, that is, the deformation amount of the elastic sheet is Δ h, at this time, the space required by the outward bending of the flexible display panel is smaller than or equal to W- Δ h.
In the above embodiment, the bending structure includes the first rotating member, the second rotating member, and two third rotating members located therebetween is taken as an example for explanation. The display device in the embodiment comprises the flexible display panel and the bending structure, wherein the bending structure is located on one side of the flexible display panel and is arranged corresponding to the bending area of the flexible display panel. The structure of buckling includes four one-way rotating members, under the state that flexible display panel expanded, along the direction of perpendicular to rotation axis, including first rotating member and second rotating member, and be located two third rotating members between the two, when display device buckles to the second direction, buckle based on two third rotating members that are located the middle zone, thereby obtain display device's the first state of buckling, when display device buckles to the third direction, buckle based on first rotating member and the second rotating member that are located both sides, thereby obtain display device's the second state of buckling, wherein, second direction and third direction are opposite. That is, the display device of the invention rotates relatively along the two third rotating pieces to realize inward folding; the flexible display panel is folded outwards by rotating along the first rotating piece and the second rotating piece, and then the flexible display panel is bent bidirectionally. That is, the display device of the invention realizes bidirectional bending by using different rotating shafts, and reduces the risk of damage to the flexible display screen caused by the fact that the flexible display panel always depends on single position bending in the bending process.
In addition, owing to adopt two third rotating members, certain distance has between two third rotating members to make no matter under first state of buckling or the second state of buckling, the flexible display panel who provides in this embodiment all can not appear the dead angle when buckling and buckle, even the flexible display panel inwards buckles also promptly, owing to the existence of second connecting piece, flexible display panel can not the laminating together after buckling, thereby can not cause the flexible display panel crease that appears after buckling, also the condition of the dead fold. Simultaneously, when display panel is in the state of buckling, if the flexible display screen in bending region receives the extrusion or the striking of external force, take place deformation easily, cause the bending region screen impaired, influence flexible display screen's life, and the setting of second connecting piece can provide the supporting role for the flexible display screen in bending region, alleviates the screen and receives external force to take place great deformation, improves display device reliability to improve flexible display screen life-span.
Referring to fig. 11 to 13, fig. 11 is a schematic cross-sectional view illustrating an expanded state of another display device according to an embodiment of the invention; FIG. 12 is a cross-sectional view of the display device shown in FIG. 11 in a first bent state; FIG. 13 is a cross-sectional view of the display device shown in FIG. 11 in a second bent state; the display device provided in this embodiment has the same structure as that shown in fig. 3 to fig. 10 in the above embodiment, except that the second connecting member in this embodiment is a second concave sheet 125 which takes the two third rotating members as endpoints and is far away from the flexible display panel.
As shown in fig. 11, in the unfolded state, two third rotating members are tangent to a surface of the flexible display panel facing the bending structure, so as to provide a supporting function for the flexible display panel in the unfolded state, and optionally in this embodiment, in order to provide support for the whole bending region, the third rotating members are multiple rotating members arranged along the length direction of the bending axis of the flexible display panel, or the third rotating members are a whole structure arranged along the length direction of the bending axis of the flexible display panel.
With continued reference to fig. 11, in the unfolded state of the flexible display panel, a third distance h' is provided between the top end of the second concave sheet 125 and the flexible display panel 11; the rotation axis of the third rotation member 123A and the rotation axis of the first rotation member 121 have a fourth distance W3 in a plane parallel to the surface of the flexible display panel; referring to fig. 10, in order to ensure that a sufficient bending space is provided for the flexible display panel in the first bending state and prevent the flexible display panel from being damaged due to squeezing, a sum of the third distance h' and the fourth distance W3 is greater than a bending radius R of the flexible display panel.
In the second bending state, referring to fig. 13, since the third rotating member does not rotate when bending outward, bending is achieved only by sliding the first sliding portion and the second sliding portion and by rotating the first rotating member and the second rotating member relative to each other. At this time, correspondingly, in order to avoid the flexible display panel from being damaged by compression, it is ensured that the flexible display panel has a sufficient bending space, and in the second bending state in this embodiment, the sliding distance W is greater than the outward bending radius of the flexible display panel.
In this embodiment, the elasticity of the second connecting member is not required, and may be a rigid structure or an elastic structure, and when the second connecting member is an elastic structure, since a deformation amount is generated in the bending process, the elastic deformation amount of the elastic structure can offset a part of the sliding distance.
With reference to the drawings and the description, it can be known that the bending structure shown in fig. 11 provided in this embodiment can also implement bidirectional bending of the display device, thereby expanding the use scene of the flexible display device. When the flexible display panel is bent in two directions, different rotating shafts are respectively utilized, so that the flexible display panel is prevented from being damaged due to repeated bending at a single position. Meanwhile, the condition of the plurality of third rotating pieces provided by the embodiment of the invention can avoid the condition of dead folding of the flexible display panel, and can prolong the service life of the flexible display panel.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It is further noted that, herein, relational terms such as first and second, and the like may be 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (15)
1. A display device, comprising:
the flexible display panel at least comprises a bending area and two non-bending areas; in the unfolded state, along a first direction, the bending area is positioned between two non-bending areas;
the bending structure is positioned on one side of the flexible display panel and used for driving the bending area to deform, and the shell is supported by the non-bending area and is in sliding connection with the shell;
the bending structure comprises at least three unidirectional rotating pieces;
in an unfolded state, in an orthographic projection of the bending structure on the flexible display panel, along the first direction, the at least three unidirectional rotating pieces comprise a first rotating piece, a second rotating piece and at least one third rotating piece located between the first rotating piece and the second rotating piece;
the display device is bent towards a second direction based on the third rotating piece, and a first bending state is obtained;
the display device is bent towards a third direction based on the first rotating piece and the second rotating piece to obtain a second bent state, wherein the second direction and the third direction are opposite directions;
the bending structure comprises the first rotating piece, the second rotating piece, two third rotating pieces opposite in rotating direction and a plurality of connecting pieces, wherein each connecting piece comprises a first connecting piece fixedly connected with the first rotating piece and the third rotating piece, the second rotating piece and the third rotating piece and a second connecting piece fixedly connected with the two third rotating pieces;
and a first sliding part and a second sliding part which are connected with the shell in a sliding way;
the first sliding part is fixedly connected with the first rotating piece; the second sliding part is fixedly connected with the second rotating piece;
the shell comprises a first shell and a second shell which are arranged in a stacked mode along the direction perpendicular to the plane of the flexible display panel, and a first accommodating cavity used for accommodating the first sliding part and a second accommodating cavity used for accommodating the second sliding part are arranged between the first shell and the second shell;
the first accommodating cavity and the second accommodating cavity respectively comprise a limiting structure, and the limiting structures are used for limiting the sliding distance of the first sliding part in the first accommodating cavity and limiting the sliding distance of the second sliding part in the second accommodating cavity.
2. The display device according to claim 1, wherein the first connector is a first concave sheet away from the flexible display panel with respect to both end points thereof;
the second connecting piece is a protruding piece which takes the two third rotating pieces as end points and is close to the flexible display panel.
3. The display device of claim 2, wherein the tab is tangent to a surface of the flexible display panel facing the bend structure in the unfolded state of the flexible display panel.
4. The display device according to claim 3, wherein the third rotating member has a first distance from the flexible display panel in an unfolded state of the flexible display panel; a rotation axis of the third rotation member and a rotation axis of the first rotation member have a second distance in a plane parallel to the surface of the flexible display panel;
in the first bending state, the difference between the second distance and the first distance is larger than the bending radius of the flexible display panel.
5. The display device according to any one of claims 2 to 4, wherein the second connecting member is a plurality of protruding pieces disposed along a length direction of a bending axis of the flexible display panel, or is a whole structure disposed along a length direction of a bending axis of the flexible display panel.
6. The display device according to claim 1, wherein the first connector is a first concave sheet away from the flexible display panel with respect to both end points thereof;
the second connecting piece is a second concave piece which takes the two third rotating pieces as endpoints and is far away from the flexible display panel.
7. The display device according to claim 6, wherein in the unfolded state of the flexible display panel, the two third rotating members are tangent to a surface of the flexible display panel facing the bending structure.
8. The display device according to claim 7, wherein in the unfolded state of the flexible display panel, a top end of the second concave sheet has a third distance from the flexible display panel; a rotation axis of the third rotation member and a rotation axis of the first rotation member have a fourth distance in a plane parallel to the surface of the flexible display panel;
in the first bending state, the sum of the third distance and the fourth distance is larger than the bending radius of the flexible display panel.
9. The display device according to any one of claims 6 to 8, wherein the third rotating member is a plurality of rotating members disposed along a length direction of a bending axis of the flexible display panel, or the third rotating member is a whole structure disposed along a length direction of a bending axis of the flexible display panel.
10. The display device according to any one of claims 1 to 4 and 6 to 8, wherein the first connecting member, the second connecting member, the first sliding portion and the second sliding portion are each a rigid structure.
11. The display device according to claim 10, wherein in the second bent state, the sliding distance is larger than a bending radius of the flexible display panel.
12. The display device according to any one of claims 1 to 4 and 6 to 8, wherein the first connecting member, the first sliding portion and the second sliding portion are each a rigid structure;
the second connecting piece is a spring piece.
13. The display device according to claim 12, wherein in the second bending state, a difference between the sliding distance and an elastic deformation amount of the elastic sheet is larger than a bending radius of the flexible display panel.
14. The display device according to claim 1, wherein the bending structure comprises the first rotating member, the second rotating member, one third rotating member and a plurality of connecting members, and the connecting members fixedly connect two adjacent rotating members;
and a first sliding part and a second sliding part which are connected with the shell in a sliding way;
the first sliding part is fixedly connected with the first rotating piece; the second sliding part is fixedly connected with the second rotating part.
15. The display device according to any one of claims 1 to 4, 6 to 8, 11, 13 to 14, wherein the first rotating member, the second rotating member and the third rotating member are all one-way hinges.
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| CN113851048B (en) * | 2021-09-16 | 2023-03-21 | 武汉华星光电半导体显示技术有限公司 | Supporting plate, flexible display panel and electronic device |
| CN114241913B (en) | 2021-12-21 | 2023-06-16 | 湖北长江新型显示产业创新中心有限公司 | Bendable display module and display device |
| CN114484186B (en) * | 2022-02-22 | 2024-05-17 | 上海天马微电子有限公司 | Display device and carrier |
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