CN114927065A - Display device - Google Patents
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- CN114927065A CN114927065A CN202210638054.5A CN202210638054A CN114927065A CN 114927065 A CN114927065 A CN 114927065A CN 202210638054 A CN202210638054 A CN 202210638054A CN 114927065 A CN114927065 A CN 114927065A
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- flexible display
- display module
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- display device
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
- G09F9/335—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes being organic light emitting diodes [OLED]
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a display device, which belongs to the technical field of display, and comprises a flexible display module and a support piece, wherein the flexible display module comprises a first area exceeding the support piece; the second display area of the flexible display module is at least partially positioned in the first area; one side of the first part of the supporting piece, which faces the flexible display module, is of a plane structure, one side of the second part of the supporting piece, which faces the flexible display module, is of a curved surface structure, one side of the supporting piece, which faces away from the flexible display module, is fixedly provided with a winding assembly, and the flexible display module of the first display area and the flexible display module of the second display area are on the same plane in a flattened state; the flexible display module of the second display area is of a curved surface structure in a non-flattening state. The invention not only can realize the free switching between the plane display and the curved surface display, but also can realize the bending of various curvatures during the curved surface display, so that the curvatures can be adjusted, and the user experience satisfaction is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
Compared with many displays, an Organic Light Emitting Diode (OLED) display is an active Light Emitting display device, and has the advantages of self-luminescence, wide viewing angle, high contrast, full-color display, Light weight, thin thickness, flexibility, low power consumption, extremely high response speed and the like, and particularly, the flexible OLED display has more obvious advantages. The flexible OLED display is lighter and thinner in size, the power consumption of the flexible OLED display is lower than that of an original device, the cruising ability of equipment is improved, meanwhile, the durability of the flexible OLED display is greatly higher than that of a traditional screen based on the characteristics of flexibility and good flexibility, and the probability of accidental damage of the equipment is reduced. Flexible OLED displays have thus been widely used in the field of display technology. The design of the curved screen brought by the flexible OLED technology enables the screen occupation ratio to be improved qualitatively, and more consumers have more and more requirements on flexible curved display products.
In the prior art, flexible display products are mainly divided into two categories, one category is conventional flat display products, and the second category is curved display products with fixed curvature. However, the display products with the above two structures are either flat display products or flexible display products with fixed curvature or folding type, which cannot realize the variable curvature adjustment of the curved surface, and can only display with a single fixed curvature, that is, there is no display structure with compatibility between flat display and curvature-adjustable curved display in the market.
Therefore, it is an urgent technical problem for those skilled in the art to provide a display device that can not only realize free switching between plane display and curved display, but also realize bending of multiple curvatures during curved display, so that the curvatures can be adjusted to improve user experience and usage satisfaction.
Disclosure of Invention
In view of this, the present invention provides a display apparatus to solve the problem that the flexible display device in the prior art cannot realize the variable curvature adjustment of the curved surface, and can only display with a single fixed curvature.
The invention discloses a display device, comprising: the flexible display module comprises a flexible display module and a support piece, wherein the support piece is positioned on one side departing from a light-emitting surface of the flexible display module; the flexible display module comprises a first area exceeding the support piece; the flexible display module comprises a first display area and a second display area which are arranged adjacently, and at least part of the second display area is positioned in the first area; the supporting piece comprises a first part and a second part, one side of the first part, which faces the flexible display module, is of a plane structure, one side of the second part, which faces the flexible display module, is of a curved surface structure, and the first part and the flexible display module of the first display area are fixedly arranged; a winding assembly is fixedly arranged on one side, away from the flexible display module, of the support piece, and the winding assembly is fixed with the edge of the flexible display module in the first area through a transmission belt; the flexible display module comprises a flattening state and a non-flattening state; in a flattening state, the flexible display module of the first display area and the flexible display module of the second display area are on the same plane; under non-flat-out state, the flexible display module assembly in first region passes through the drive of coiling subassembly, is close to towards the second portion, and the flexible display module assembly in second display area is the curved surface structure, and the curved surface structure of the flexible display module assembly in second display area includes two kinds of curvatures at least under the non-flat-out state.
Compared with the prior art, the display device provided by the invention at least realizes the following beneficial effects:
the display device provided by the invention comprises the flexible display module and the supporting piece which are oppositely arranged, wherein the supporting piece is positioned on one side departing from the light-emitting surface of the flexible display module and plays a role in supporting the flexible display module. The flexible display module comprises a first area exceeding the supporting piece, and the first area of the flexible display module is used for subsequent bending, so that the bending curvature of the first area of the flexible display module is adjustable. According to the invention, the winding assembly is fixed on one side of the support member, which is far away from the flexible display module, and the flexible driving belt is matched, so that the flexible display module can be freely switched between a flat state and a non-flat state, the winding assembly is not started in the flat state, the driving belt can be in a state of not being wound on the winding assembly, the flexible display module of the first display area and the flexible display module of the second display area are on the same plane, namely the first display area and the second display area are used as the plane display areas, and the whole plane display effect can be realized. Under the non-flat state of exhibition, can start the winding assembly, make winding assembly pulling drive belt, the drive belt is convoluteed gradually on winding assembly, the flexible display module of first region passes through the drive of winding assembly and drive belt, be close to towards the second portion gradually, the flexible display module of second display area is the curved surface structure, the flexible display module of second display area is curved surface display effect promptly, and the curved surface structure of the flexible display module of second display area includes two kinds of different curvatures at least under this non-flat state, can also finally make the flexible display module of first region within range and the laminating of curved surface structure's support piece's second portion, guarantee support piece and to the whole supporting effect of flexible display module. The display device disclosed by the invention not only can realize free switching between plane display and curved surface display, but also has the plane display function and the curved surface display function, and can realize bending of various curvatures during curved surface display in a non-flattening state, so that the bending curvature of the second display area of the flexible display module is flexible and adjustable, and the improvement of user experience and use satisfaction is facilitated.
Of course, it is not necessary for any product in which the present invention is practiced to specifically achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic plan view of a display device according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the display device of FIG. 1 in a flattened state;
FIG. 3 is a schematic cross-sectional view of the display device of FIG. 1 in an unflattened state;
FIG. 4 is a schematic cross-sectional view of the display device of FIG. 1 in an unflattened state;
FIG. 5 is a schematic diagram of another planar structure of a display device according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of the display device of FIG. 5 in a flattened state;
fig. 7 is a schematic plan view of another display device according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of the display device of FIG. 7 in a flattened state;
FIG. 9 is a schematic cross-sectional view of the display device of FIG. 7 in a non-flattened state;
FIG. 10 is a schematic cross-sectional view of the display device of FIG. 7 in a flattened state;
FIG. 11 is a schematic cross-sectional view of the display device of FIG. 7 in a flattened state;
FIG. 12 is a schematic cross-sectional view of the display device of FIG. 7 in an unflattened state;
FIG. 13 is a schematic cross-sectional view of the display device of FIG. 7 in an expanded state;
FIG. 14 is a schematic cross-sectional view of the display device of FIG. 7 in an unflattened state;
FIG. 15 is a schematic cross-sectional view of the display device of FIG. 7 in an unflattened state;
FIG. 16 is a schematic partial perspective view of the display device of FIG. 7;
FIG. 17 is a schematic cross-sectional view of the display device of FIG. 7 in a flattened state;
fig. 18 is a schematic cross-sectional view of the display device of fig. 7 in a non-flattened state.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.
Referring to fig. 1 to 4 in combination, fig. 1 is a schematic plan structure diagram of a display device according to an embodiment of the present invention, fig. 2 is a schematic cross-sectional structure diagram of the display device in fig. 1 in a flattened state, fig. 3 is a schematic cross-sectional structure diagram of the display device in fig. 1 in a non-flattened state, and fig. 4 is a schematic cross-sectional structure diagram of the display device in fig. 1 in a non-flattened state (for clarity, the structure of the present embodiment is illustrated, and transparency filling is performed in fig. 1 of the present embodiment), where the display device 000 according to the present embodiment includes: the flexible display module 10 comprises a flexible display module 10 and a support 20, wherein the support 20 is located on one side departing from a light emitting surface 10E of the flexible display module 10; the flexible display module 10 includes a first region 10A beyond the support 20;
the flexible display module 10 comprises a first display area AA1 and a second display area AA2 which are adjacently arranged, wherein the second display area AA2 is at least partially positioned in the first area 10A;
the supporting member 20 includes a first portion 201 and a second portion 202, a side of the first portion 201 facing the flexible display module 10 is a planar structure, a side of the second portion 202 facing the flexible display module 10 is a curved structure, and the first portion 201 and the flexible display module 10 in the first display area AA1 are fixedly disposed;
a winding assembly 30 is fixedly arranged on one side of the support member 20 away from the flexible display module 10, and the winding assembly 30 is fixed with the edge of the flexible display module 10 in the first area 10A through a transmission belt 40;
the flexible display module 10 comprises a flattened state (as shown in fig. 2) and a non-flattened state (as shown in fig. 3 and 4);
in the flattened state, the flexible display module 10 in the first display area AA1 and the flexible display module 10 in the second display area AA2 are on the same plane;
under the non-flat state, the flexible display module 10 in the first area 10A is driven by the winding assembly 30 to approach the second portion 202, the flexible display module 10 in the second display area AA2 is of a curved surface structure, and the curved surface structure of the flexible display module 10 in the second display area AA2 under the non-flat state at least includes two curvatures.
Specifically, the display device 000 provided in this embodiment may be a flexible display device with an adjustable curvature, the display device 000 includes the flexible display module 10 and the supporting element 20 that are disposed oppositely, the supporting element 20 is located on a side away from the light emitting surface 10E of the flexible display module 10, that is, the flexible display module 10 and the supporting element 20 are disposed oppositely, and when the supporting element 20 is located on the backlight side of the flexible display module 10, the supporting element 20 can play a role of supporting the flexible display module 10. Optionally, the flexible display module 10 may include a flexible display panel, and the flexible display module 10 may be a flexible organic light emitting diode display module, and the structure of the flexible display module 10 is not specifically limited in this embodiment, for example, the flexible display module 10 may include a flexible display panel and a flexible cover plate having a protection function, and the structure of the flexible display device in the related art may be specifically referred to for understanding. The flexible display module 10 of this embodiment includes the first region 10A beyond the supporting member 20, specifically, the region of the flexible display module 10 beyond the supporting member 20 in its flat state is the first region 10A, that is, the area of the supporting member 20 may be smaller than the area of the flexible display module 10 in the flat state, so that when the flexible display module 10 and the supporting member 20 are disposed relatively, the flexible display module 10 includes the first region 10A beyond the supporting member 20 (as shown in fig. 2), and the first region 10A of the flexible display module 10 is used for subsequent bending, so that the curvature of the first region 10A of the flexible display module 10 can be adjusted. The flexible display module 10 provided in this embodiment includes a first display area AA1 and a second display area AA2 that are adjacently disposed, where at least a portion of the second display area AA2 is located in the first area 10A, no other display area is located between the first display area AA1 and the second display area AA2, and the first display area AA1 and the second display area AA2 are adjacently disposed, it can be understood that, in the drawing of this embodiment, the first display area AA1 is taken as a middle display area of the flexible display module 10, and the second display area AA2 is taken as an example of a display area of the flexible display module 10 near its own edge. Alternatively, the second display area AA2 in this embodiment may include one, that is, the display device 000 may be a structure including only one second display area AA2 with variable curvature (as shown in fig. 1-4), or second display area AA2 may include two, two second display areas AA2 may or may not be equal in area size, that is, the display device 000 may be a structure including two second display areas AA2 with variable curvature, and the second display areas AA2 are respectively located at two opposite sides of the first display area AA1 (as shown in fig. 5 and fig. 6, fig. 5 is another schematic plane structure of the display device provided by the embodiment of the present invention, and fig. 6 is a schematic cross-sectional structure of the display device in fig. 5 in a flattened state).
The supporting member 20 of the present embodiment may be a structure made of a hard material and having an effect of supporting the flexible display module 10, such as a high-strength supporting structure made of an aluminum magnesium alloy or a stainless steel material, and the material of the supporting member 20 is not particularly limited in the present embodiment. The supporting member 20 includes a first portion 201 and a second portion 202, it is understood that the designations of the first portion 201 and the second portion 202 in this embodiment are only for distinguishing the structures in different areas of the supporting member 20, the first portion 201 and the second portion 202 are both part of the supporting member 20, and may be integrally formed, and do not represent separate structures, wherein a side of the first portion 201 facing the flexible display module 10 is a planar structure, the first portion 201 is fixedly disposed with the flexible display module 10 of the first display area AA1, that is, the first portion 201 may be located on the backlight side of the flexible display module 000 and correspond to the first display area AA1 of the flexible display module 10, and since the side of the first portion 201 facing the flexible display module 10 is a planar structure, when the flexible display module 10 of the first display area AA1 is fixed with the first portion 201 (e.g., by bonding with an adhesive layer, which is not illustrated), the first display area AA1 of the flexible display module 10 can be used as a flat display area. One side of the second portion 202 of the supporting member 20 facing the flexible display module 10 is a curved surface structure (as shown in fig. 2 and fig. 3), one side of the supporting member 20 facing away from the flexible display module 10 is fixedly provided with a winding assembly 30, the winding assembly 30 is fixed to the edge of the flexible display module 10 in the first area 10A through a transmission belt 40, that is, one end of the transmission belt 40 may be connected to the winding assembly 30, the other end of the transmission belt 40 may be fixed to the edge 100 of the flexible display module 10, and the position of the edge 100 may be understood as any position within the range of the first area 10A of the flexible display module 10. Optionally, the winding assembly 30 in this embodiment may include a plurality of structures, such as a motor and a reel for transmitting driving force, and the specific structure of the winding assembly 30 in this embodiment is not limited, and only needs to provide the driving force to pull the driving belt 40 and enable the driving belt 40 to pull the edge 100 of the flexible display module 10. The driving belt 40 of this embodiment may be understood as a flexible traction belt, and the material of the driving belt 40 may include polyurethane, PVC, and other materials with good wear resistance and flexibility, which is not limited in this embodiment, and it is only necessary to satisfy that the driving belt 40 can be wound on the winding assembly 30 or released by the winding assembly 30 through the winding movement of the winding assembly 30. In this embodiment, by fixing the winding assembly 30 on the side of the support 20 away from the flexible display module 10, the flexible display module 10 in the first area 10A can follow the winding action of the winding assembly 30, so that the transmission belt 40 is wound on the winding assembly 30, the length of the transmission belt 40 between the edge 100 of the flexible display module 10 and the position of the winding assembly 30 is shortened, and then the flexible display module 10 in the first area 10A gradually approaches toward the second portion 202 of the support 20 with the curved structure (as shown in fig. 3), during the approach, the curvature of the second area 10A of the flexible display module 10 (i.e. the corresponding display area of the second display area AA 2) is changed, and the winding action of the winding assembly 30 can be stopped at any time according to the requirement of the user for the curvature, and finally the flexible display module 10 in the first area 10A can be attached to the second portion 202 of the support 20 with the curved structure (as shown in fig. 4), that is, the curved surface structure of the flexible display module 10 in the second display area AA2 in the non-flattened state at least includes two different curvature states illustrated in fig. 3 and 4.
In this embodiment, the winding assembly 30 is fixed on a side of the supporting member 20 away from the flexible display module 10, and by cooperation of the flexible driving belt 40, free switching between a flattened state (as shown in fig. 2) and a non-flattened state (as shown in fig. 3 and fig. 4) of the flexible display module 10 can be achieved, in the flattened state, the winding assembly 30 is not started, and at this time, the driving belt 40 may be in a state of not being wound on the winding assembly 30, the flexible display module 10 in the first display area AA1 and the flexible display module 10 in the second display area AA2 are on the same plane, that is, the first display area AA1 and the second display area AA2 are both used as a flat display area, and a flat display effect of the whole plane can be achieved. In a non-flat state, the winding assembly 30 may be started, so that the winding assembly 30 pulls the transmission belt 40, the transmission belt 40 is gradually wound on the winding assembly 30, the flexible display module 10 in the first area 10A is gradually approached to the second portion 202 by being driven by the winding assembly 30 and the transmission belt 40, the flexible display module 10 in the second display area AA2 is in a curved surface structure, that is, the flexible display module 10 in the second display area AA2 is in a curved surface display effect, and the curved surface structure of the flexible display module 10 in the second display area AA2 in the non-flat state at least includes two different curvatures, that is, the number of turns of the transmission belt 40 wound on the winding assembly 30 is different, the length of the transmission belt 40 between the edge 100 of the flexible display module 10 and the position of the winding assembly 30 is also different, the curved state of the flexible display module 10 in the first area 10A is also different, and further, the flexible display module 10 in the first area 10A can flexibly adjust the curved state according to the user's usage requirement The curvature may also finally make the flexible display module 10 in the range of the first region 10A fit with the second portion 202 of the support member 20 having a curved surface structure, thereby ensuring the overall supporting effect of the support member 20 on the flexible display module 10. The display device 000 of the embodiment not only can realize free switching between the plane display and the curved surface display, but also has the plane display function and the curved surface display function, and can realize bending of various curvatures when the curved surface in the non-flattening state is displayed, so that the bending curvature of the second display area AA2 of the flexible display module 10 is flexibly adjustable, and the improvement of user experience and use satisfaction is facilitated.
It should be noted that, in this embodiment, a specific structure of the flexible display module 10 is not limited, and in specific implementation, the structure of the flexible display screen in the related art can be understood. In this embodiment, the fixing manner of the supporting member 20 and the winding assembly 30 is not specifically limited, a fixing connection member such as a screw may be used to realize a fixing effect of the rigid supporting member 20 and the winding assembly 30, so as to improve stability, and other fixing manners may also be used. The winding assembly 30 in this embodiment is fixed to the edge of the flexible display module 10 of the first region 10A through the transmission belt 40, one end of the transmission belt 40 can be connected to the winding assembly 30, the other end of the transmission belt 40 can be fixed to the edge 100 of the flexible display module 10 through an adhesive or other structures with fixing effects, this embodiment is not limited herein, and during specific implementation, only the fixing effects between the two ends of the transmission belt 40 and the winding assembly 30 and the flexible display module 10 are required.
In some alternative embodiments, please refer to fig. 7 to 9 in combination, fig. 7 is another schematic plane structure diagram of a display device provided in an embodiment of the present invention, fig. 8 is a schematic cross-sectional structure diagram of the display device in fig. 7 in a flattened state, fig. 9 is a schematic cross-sectional structure diagram of the display device in fig. 7 in a non-flattened state (for clarity of illustrating the structure of the present embodiment, transparency filling is performed in fig. 7 of the present embodiment), in the present embodiment, the flexible display module 10 includes a flexible cover 101 and a flexible display panel 102 that are stacked, and the flexible cover 101 is located on a side of the flexible display panel 102 away from the support 20;
the flexible cover 101 comprises a second area 101A beyond the flexible display panel 102, and the drive belt 40 is fixed with an edge 1010 of the flexible cover 101 of the second area 101A.
This embodiment explains that the flexible display module 10 may at least include the flexible cover plate 101 and the flexible display panel 102 that are stacked, and the flexible cover plate 101 is located on one side of the flexible display panel 102 that deviates from the support 20, wherein the flexible cover plate 101 may be made of bendable tempered glass, and further when the flexible display panel 102 is protected through the flexible cover plate 101, the whole flexible display module 10 may also have better flexibility and bending capability. The flexible cover 101 of this embodiment includes the second region 101A beyond the flexible display panel 102, that is, generally, the flexible cover 101 is manufactured to be larger than the whole area of the flexible display panel 102, the area of the flexible cover 101 may be larger than the area of the flexible display panel 102, so that when the flexible display panel 102 and the flexible cover 101 are relatively attached to each other, the flexible cover 101 includes the second region 101A beyond the flexible display panel 102 (as shown in fig. 8 and 9), the second region 101A of the flexible cover 101 is used for fixing the driving belt 40, so that one end of the driving belt 40 can be fixed to the edge 1010 of the flexible cover 101 of the second region 101A, that is, the driving belt 40 can be fixed by using the fact that the flexible cover 101 itself exceeds the second region 101A of the flexible display panel 102, the driving belt 40 can be effectively prevented from pulling the flexible display panel 102 when the driving belt 40 stretches along with the winding of the winding assembly 30, further, the display performance and the display effect of the flexible display panel 102 can be prevented from being affected in the dragging process, and the service life of the product and the display effect in the using process can be improved.
Optionally, referring to fig. 7 and fig. 10 in combination, fig. 10 is another schematic cross-sectional structure diagram of the display device in fig. 7 in a flattened state, in which the flexible display module 10 in this embodiment further includes a composite foam layer 103 and an optical adhesive layer 104, the composite foam layer 103 is located on a side of the flexible display panel 102 facing the support member 20, further optionally, an area of the composite foam layer 103 may be smaller than or equal to an area of the first portion 201 of the support member 20, so as to additionally cover the area where the support member 20 overlaps the flexible display panel 102, the optical glue layer 104 is located between the flexible cover plate 101 and the flexible display panel 102, and further optionally, the area size of the optical glue layer 104 may be equal to the area size of the flexible display panel 102, therefore, the flexible display panel 102 and the flexible cover plate 101 have enough bonding area and can be well attached and fixed. The flexible cover plate 101 and the flexible display panel 102 can be fixedly attached to each other through the optical Adhesive layer 104 (optical Clear Adhesive, OCA), the optical Adhesive layer 104 is colorless and transparent, has a light transmittance of more than 95%, has good Adhesive strength, can be cured at room temperature or at intermediate temperature, and has the characteristics of small curing shrinkage and the like, so that the bonding firmness can be ensured, and the light emitting effect of the flexible display panel 102 can be prevented from being influenced. The composite foam layer 103 can be arranged between the supporting member 20 and the flexible display panel 102 in this embodiment, and the composite foam layer 103 plays a role in protecting the flexible display panel 102, so that damage to the flexible display panel 102 caused by fixing the rigid supporting member 20 and the flexible display panel 102 is avoided.
Alternatively, with continuing reference to fig. 7-10, one end of the belt 40 in this embodiment is fixed to the winding assembly 30, the other end of the belt 40 is fixed to the edge 1010 of the flexible cover 101 of the second area 101A through the fixing block 50, and the fixing block 50 wraps at least a portion of the flexible cover 101 of the second area 101A. Further optionally, the fixing block 50 includes any one of a C-shaped rubber strip or a C-shaped silicone strip.
This embodiment explains that the fixing manner of the driving belt 40 and the flexible cover plate 101 may be through a fixing block 50, the fixing block 50 may be made of a flexible material, and the fixing block 50 may wrap at least a part of the flexible cover plate 101 of the second region 101A, that is, the fixing block 50 may wrap an edge portion of the flexible cover plate 101, and may also serve as a fixed connection structure of the driving belt 40 and the flexible cover plate 101 while protecting the edge of the flexible cover plate 101. The fixed block 50 of this embodiment includes any one of C type rubber strip or C type silica gel strip, or fixed block 50 can adopt the edge that the flexible apron 101 was lived in the parcel of rubber injection molding process, or fixed block 50 can adopt silica gel bonding process to make its edge of wrapping up flexible apron 101, and then when playing the effect of protection flexible apron 101 edge, can also regard as drive belt 40 to realize the part of exerting oneself of pulling the effect, drive the edge 1010 of flexible apron 101, and then pull the regional buckle of the marginal of whole flexible display module assembly 10, the effect that the bending curvature of the flexible display module assembly 10 that realizes first region 10A can be nimble adjustable.
In some alternative embodiments, referring to fig. 7, 11 and 12 in combination, fig. 11 is a schematic cross-sectional view of the display device in fig. 7 in a flattened state, fig. 12 is a schematic cross-sectional view of the display device in fig. 7 in a non-flattened state, and in this embodiment, the winding assembly 30 includes a motor 303, a first gear shaft 301 and a second gear shaft 302;
the first gear shaft 301 comprises a first rotating shaft 301A and a first gear 301B which are connected with each other, the motor 303 is connected with the first rotating shaft 301A, and the motor 303 controls the first gear 301B to rotate along with the first rotating shaft 301A;
the second gear shaft 302 includes a first reel 302A and a second gear 302B connected to each other, the second gear 302B is engaged with the first gear 301B, and one end of the belt 40 is wound around the first reel 302A;
in the process of moving the display device 000 from the flat state to the non-flat state, such as the state shown in fig. 11 to the state shown in fig. 12, the motor 303 controls the second gear 302B to rotate along with the first gear 301B, so as to wind the transmission belt 40 around the first reel 302A, and drive the flexible display module 10 in the first area 10A to approach the second portion 202.
This embodiment explains a structure that the winding assembly 30 disposed on the side of the support member 20 away from the flexible display module 10 may include a motor 303, a first gear shaft 301 and a second gear shaft 302, wherein the motor 303 may be a motor or a stepping motor for providing a driving force to rotate the first gear shaft 301, a second gear 302B of the second gear shaft 302 is meshed with the first gear 301B of the first gear shaft 301, so that when the motor 303 drives the first gear shaft 301 to rotate, the second gear shaft 302 also rotates, and since one end of the transmission belt 40 is fixed to the edge 100 of the flexible display module 10 (or one end of the transmission belt 40 is fixed to the edge 1010 of the flexible cover plate 101 as in the embodiment of fig. 7), the other end of the transmission belt 40 may be wound on the first winding shaft 302A of the second gear shaft 302, and as the second gear shaft 302 rotates, the transmission belt 40 may be gradually wound on the first winding shaft 302A, the distance between the flexible display module 10 in the first area 10A and the second portion 202 of the support member 20 is increased and decreased. As shown in fig. 11 and 12, in the process of moving the display device 000 from the flat state to the non-flat state, the motor 303 controls the first gear shaft 301 to rotate, the second gear 302B is engaged with the first gear 301B, that is, the motor 303 controls the second gear 302B to rotate along with the first gear 301B, the second gear shaft 302 also rotates, the transmission belt 40 is gradually wound on the first reel 302A to drive the flexible display module 10 of the first area 10A to approach the second portion 202, the distance between the flexible display module 10 of the first area 10A and the second portion 202 of the support 20 is gradually reduced, the second display area AA2 of the flexible display module 10 exhibits the effect of curved surface display, so that the free switching between the flat surface display and the curved surface display of the display device 000 can be realized by simple control of the motor 303, and the turning on and off of the motor 303 can be controlled at any time during the curved surface display of the non-flat state to realize the bending of various curvatures, the bending curvature of the second display area AA2 of the flexible display module 10 is flexible and adjustable, the operation is simple, and the improvement of user experience and use satisfaction is facilitated.
It should be noted that, this embodiment only exemplifies the structure that the rolling assembly 30 can be disposed, and in specific implementation, the design of the rolling assembly 30 includes but is not limited to this, and other structures capable of pulling the first area 10A of the flexible display module 10 to achieve the effect of displaying the second display area AA2 of the flexible display module 10 in a curved surface may also be used, which is not described herein again.
In some alternative embodiments, please refer to fig. 7, 13-16 in combination, fig. 13 is a schematic cross-sectional view of the display device in fig. 7 in a flattened state, fig. 14 is a schematic cross-sectional view of the display device in fig. 7 in an unbent state, fig. 15 is a schematic cross-sectional view of the display device in fig. 7 in an unbent state, fig. 16 is a schematic partial perspective view of the display device in fig. 7, the display device 000 in this embodiment further includes a second rotating shaft 70 and at least two fixing brackets 60, and the fixing brackets 60 are disposed on a side of the supporting member 20 facing away from the flexible display module 10;
in the length extending direction X of the second gear shaft 302, two fixing brackets 60 are respectively located on two opposite sides of the second gear shaft 302 (as shown in fig. 16);
the fixing bracket 60 comprises a hollow track 60K, two ends of the second rotating shaft 70 are arranged in the hollow track 60K, and the second rotating shaft 70 is in surface contact with one side of the driving belt 40 facing the flexible display module 10;
in a non-flattened state (as shown in fig. 14 and 15), the second rotating shaft 70 moves in the first direction G in the hollow track 60K in a process that the flexible display module 10 in the first area 10A is driven by the winding assembly 30 to approach toward the second portion 202; wherein the first direction G is a direction in which the second portion 202 of the support member 20 points to the first portion 201.
The embodiment explains that the display device 000 may further include a second rotating shaft 70 and at least two fixing brackets 60, the fixing brackets 60 are disposed on a side of the supporting member 20 away from the flexible display module 10, the second rotating shaft 70 is movably connected with the fixing brackets 60, as shown in fig. 16, in a length extending direction X of the second gear shaft 302, the two fixing brackets 60 are respectively located on two opposite sides of the second gear shaft 302, so as to respectively support two ends of the second rotating shaft 70. The fixing bracket 60 includes a hollow track 60K, two ends of the second rotating shaft 70 are disposed in the hollow track 60K, and the second rotating shaft 70 contacts with the transmission belt 40 toward a side surface of the flexible display module 10, that is, the second rotating shaft 70 can serve as a fulcrum of the flexible transmission belt 40, so that the transmission belt 40 is supported in the process that the flexible display module 10 in the first region 10A approaches the second portion 202 of the supporting member 20. In a non-flattened state (as shown in fig. 14 and 15) of the display device 000, the flexible display module 10 in the first area 10A is driven by the winding assembly 30 to approach toward the second portion 202, the second rotating shaft 70 moves along the first direction G along with the winding of the winding assembly 30 in the hollow track 60K, and the first direction G can be understood as a direction in which the second portion 202 of the support member 20 points to the first portion 201, so that the curved display effect presented by the second display area AA2 of the flexible display module 10 has a plurality of variable different curvature effects.
In some optional embodiments, please refer to fig. 7, 13-16 with continued reference, in the present embodiment, an extending direction of the hollow track 60K is the same as or substantially the same as a moving track of the flexible display module 10 in the first area 10A approaching the second portion 201.
This embodiment explains that the extending direction of the hollow track 60K formed on the fixing bracket 60 may be the same as or similar to the movement track of the flexible display module 10 in the first area 10A, specifically, the extending direction of the hollow track 60K is similar to the movement track of the flexible display module 10 in the first area 10A approaching the second portion 201 of the supporting member 20, so that in the process of the flexible display module 10 in the first area 10A approaching the second portion 201 of the supporting member 20, the second rotating shaft 70 moves along the hollow track 60K formed on the fixing bracket 60 with the movement track similar thereto, which is beneficial to ensuring the display smoothness of the second display area AA2, and avoiding the movement track of the hollow track 60K in the process of the extending direction of the hollow track 60K being different from the movement track of the flexible display module 10 in the first area 10A approaching the second portion 201, so as to easily cause the flexible display module 10 in the second display area AA2 to wrinkle, thereby affecting the display quality.
In some alternative embodiments, with continuing reference to fig. 7, 13-16, in the present embodiment, the second portion 202 of the supporting member 20 includes a quarter arc surface facing the curved surface structure of the flexible display module 10;
the orthographic projection of the hollow track 60K on the light emitting surface 10E of the flexible display module 10 is not overlapped with the orthographic projection of the first portion 201 on the light emitting surface 10E of the flexible display module 10.
The present embodiment explains that the curved surface structure of the second portion 202 of the supporting member 20 facing the flexible display module 10 may be a quarter arc surface, that is, as shown in the cross-sectional view illustrated in fig. 13, the surface of the curved surface structure of the second portion 202 of the supporting member 20 facing the flexible display module 10 is a circular quarter arc surface, when the extending direction of the hollow track 60K formed on the fixing bracket 60 is similar to the moving track of the flexible display module 10 in the first area 10A, the cut-off position formed on the hollow track 60K formed on the fixing bracket 60 may be cut off at the position of the second portion 202, that is, the orthographic projection of the hollow track 60K formed on the fixing bracket 60 on the light emitting surface 10E of the flexible display module 10 is not overlapped with the orthographic projection of the first portion 201 on the light emitting surface 10E of the flexible display module 10, so that the hollow track 60K and the second portion 202 are matched towards the quarter arc surface of the flexible display module 10, the phenomenon that the flexible display module 10 of the first area 10A is excessively bent due to the overlong hollow track 60K can be avoided, the flexible display module 10 is extruded, and then the display quality and the product yield are affected.
In some alternative embodiments, please refer to fig. 7, 17 and 18 in combination, fig. 17 is a schematic cross-sectional view of the display device in fig. 7 in a flattened state, fig. 18 is a schematic cross-sectional view of the display device in fig. 7 in a non-flattened state, in this embodiment, the curved surface structure of the second portion 202 facing the flexible display module 10 includes a half arc surface;
the orthographic projection of the hollow track 60K on the light-emitting surface 10E of the flexible display module 10 covers the orthographic projection of the second portion 202 on the light-emitting surface 10E of the flexible display module 10, and the orthographic projection of the hollow track 60K on the light-emitting surface 10E of the flexible display module 10 is at least partially overlapped with the orthographic projection of the first portion 201 on the light-emitting surface 10E of the flexible display module 10.
This embodiment explains that the curved surface structure of the second portion 202 of the supporting member 20 facing the flexible display module 10 may also be a half arc surface, that is, as shown in the cross-sectional view illustrated in fig. 17, the surface of the second portion 202 of the supporting member 20 facing the curved surface structure of the flexible display module 10 is a circular half arc surface, when the extending direction of the hollow track 60K formed in the fixing bracket 60 is similar to the moving track of the flexible display module 10 in the first region 10A, the cut-off position formed by the hollow track 60K formed in the fixing bracket 60 may be cut off at the position of the first portion 201, that is, the orthographic projection of the hollow track 60K formed in the fixing bracket 60 on the light-emitting surface 10E of the flexible display module 10 may not only cover the orthographic projection of the second portion 202 on the light-emitting surface 10E of the flexible display module 10, but also at least partially overlap with the orthographic projection of the first portion 201 on the light-emitting surface 10E of the flexible display module 10E, therefore, while the hollowed-out rail 60K is matched with the half arc surface of the second portion 202 facing the flexible display module 10, the flexible display module 10 in the first area 10A can be further bent to bend by 180 degrees, as shown in fig. 18, a part of the display screen of the second display area AA2 can be opposite to the display screen of the first display area AA1, so that the bending form of the display device 000 is more flexible and changeable.
In some optional embodiments, please continue to refer to fig. 1-4, in this embodiment, the curved surface structure of the second portion 202 facing the flexible display module 10 is an arc surface 202A;
the radius of the arc surface 202A is R1, and the ultimate bending radius of the flexible display module 10 in the first region 10A is R2; wherein R1 is more than or equal to R2.
This embodiment explains that the second portion 202 of the support member 20 is bent to form a circular arc surface, when the radius of the circular arc surface 202A is R1 (where the radius of the circular arc surface can be understood as the radius of the circle where the circular arc surface is located), R1 needs to be set to be greater than or equal to the limit bending radius R2 of the flexible display module 10 in the first region 10A (where the limit bending radius can be understood as the bending radius when the flexible display module 10 in the first region 10A reaches the maximum bending degree and then bends to damage the performance of the flexible display module 10), so as to avoid the situation that the flexible display module 10 in the first region 10A reaches its limit bending state when the flexible display module 10 is not dragged to be attached to the curved surface structure of the flexible display module 10 facing the second portion 202, that is, in this embodiment, the radius R1 of the circular arc surface 202A of the second portion 202 is set to be greater than or equal to the limit bending radius R1 of the flexible display module 10 in the first region 10A Curved radius R2, can make first region 10A's flexible display module assembly 10 pull to reach its limit curved state promptly when laminating with second portion 202 towards the curved surface structure of flexible display module assembly 10, or can make first region 10A's flexible display module assembly 10 pull to have not reached its limit curved state yet when laminating with second portion 202 towards the curved surface structure of flexible display module assembly 10, thereby can avoid the excessive bending of flexible display module assembly 10, and then be favorable to avoiding flexible display module assembly 10 to receive bending damage, be favorable to improving life and display effect.
It should be noted that, in this embodiment, when the flexible display module 10 includes the flexible cover 101 and the flexible display panel 102, the maximum bending radius R2 of the flexible display module 10 in the first region 10A may be understood as the larger of the maximum bending radius of the flexible cover 101 in the first region 10A and the maximum bending radius of the flexible display panel 102 in the first region 10A, so as to be beneficial to protecting the structures of the flexible cover 101 and the flexible display panel 102 and preventing any one of the flexible cover 101 and the flexible display panel 102 from being damaged.
As can be seen from the above embodiments, the display device provided by the present invention at least achieves the following beneficial effects:
the display device provided by the invention comprises the flexible display module and the supporting piece which are oppositely arranged, wherein the supporting piece is positioned on one side departing from the light-emitting surface of the flexible display module and plays a role in supporting the flexible display module. The flexible display module comprises a first area exceeding the supporting piece, and the first area of the flexible display module is used for subsequent bending, so that the bending curvature of the first area of the flexible display module is adjustable. According to the invention, the winding assembly is fixed on one side of the support piece, which is far away from the flexible display module, and the flexible driving belt is matched, so that the flexible display module can be freely switched between a flattening state and a non-flattening state, the winding assembly is not started in the flattening state, the driving belt can be in a state of not being wound on the winding assembly, the flexible display module of the first display area and the flexible display module of the second display area are on the same plane, namely the first display area and the second display area are used as the plane display areas, and the whole plane display effect can be realized. Under the non-flat state of exhibition, can start the winding assembly, make winding assembly pulling drive belt, the drive belt is convoluteed gradually on winding assembly, the flexible display module of first region passes through the drive of winding assembly and drive belt, be close to towards the second portion gradually, the flexible display module of second display area is the curved surface structure, the flexible display module of second display area is curved surface display effect promptly, and the curved surface structure of the flexible display module of second display area includes two kinds of different curvatures at least under this non-flat state, can also finally make the flexible display module of first region within range and the laminating of curved surface structure's support piece's second portion, guarantee support piece and to the whole supporting effect of flexible display module. The display device disclosed by the invention not only can realize free switching between plane display and curved surface display, but also has the plane display function and the curved surface display function, and can realize bending of various curvatures during curved surface display in a non-flattening state, so that the bending curvature of the second display area of the flexible display module is flexible and adjustable, and the improvement of user experience and use satisfaction is facilitated.
Although some specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (11)
1. A display device, comprising: the flexible display module comprises a flexible display module and a support piece, wherein the support piece is positioned on one side departing from a light-emitting surface of the flexible display module; the flexible display module comprises a first area exceeding the support piece;
the flexible display module comprises a first display area and a second display area which are adjacently arranged, wherein at least part of the second display area is positioned in the first area;
the supporting piece comprises a first part and a second part, one side of the first part, which faces the flexible display module, is of a plane structure, one side of the second part, which faces the flexible display module, is of a curved surface structure, and the first part and the flexible display module of the first display area are fixedly arranged;
a winding assembly is fixedly arranged on one side, away from the flexible display module, of the support member, and the winding assembly is fixed with the edge of the flexible display module in the first area through a transmission belt;
the flexible display module comprises a flattening state and a non-flattening state;
in the flattening state, the flexible display module of the first display area and the flexible display module of the second display area are on the same plane;
under the non-flat state of exhibition, first region the flexible display module assembly passes through the drive of coiling subassembly, court the second portion is close to, the second display area the flexible display module assembly is the curved surface structure, just under the non-flat state of exhibition the second display area the curved surface structure of flexible display module assembly includes two kinds of curvatures at least.
2. The display device according to claim 1, wherein the flexible display module comprises a flexible cover plate and a flexible display panel which are stacked, and the flexible cover plate is positioned on one side of the flexible display panel, which faces away from the support;
the flexible cover plate comprises a second area which exceeds the flexible display panel, and the driving belt is fixed with the edge of the flexible cover plate of the second area.
3. The display device according to claim 2,
one end of the transmission belt is fixed with the winding assembly, the other end of the transmission belt is fixed with the edge of the flexible cover plate of the second area through a fixing block, and the fixing block wraps at least part of the flexible cover plate of the second area.
4. The display device according to claim 3, wherein the fixing block includes any one of a C-shaped rubber strip or a C-shaped silicone strip.
5. The display device according to claim 2, wherein the flexible display module further comprises a composite foam layer and an optical adhesive layer, the composite foam layer is located on one side of the flexible display panel facing the support member, and the optical adhesive layer is located between the flexible cover plate and the flexible display panel.
6. The display device of claim 1, wherein the winding assembly comprises a motor, a first gear shaft, and a second gear shaft;
the first gear shaft comprises a first rotating shaft and a first gear which are connected with each other, the motor is connected with the first rotating shaft, and the motor controls the first gear to rotate along with the first rotating shaft;
the second gear shaft comprises a first reel and a second gear which are connected with each other, the second gear is meshed with the first gear, and one end of the transmission belt is wound on the first reel;
in the movement process of the display device from the flattening state to the non-flattening state, the motor controls the second gear to rotate along with the first gear, the transmission belt is wound on the first reel, and the flexible display module in the first area is driven to approach the second portion.
7. The display device according to claim 6, further comprising a second rotating shaft and at least two fixing brackets, wherein the fixing brackets are disposed on a side of the supporting member facing away from the flexible display module;
in the length extending direction of the second gear shaft, the two fixing brackets are respectively positioned at two opposite sides of the second gear shaft;
the fixed support comprises a hollow track, two ends of the second rotating shaft are arranged in the hollow track, and the second rotating shaft is in surface contact with one side of the transmission belt facing the flexible display module;
in the non-flattening state, the second rotating shaft moves in the hollowed-out track along the first direction in the process that the flexible display module in the first area is driven by the winding assembly to approach the second portion in the direction of the second portion; wherein the first direction is a direction in which the second portion of the support member points toward the first portion.
8. The display device according to claim 7, wherein the extending direction of the hollow track is the same as the movement track of the flexible display module in the process of approaching the flexible display module in the first area to the second part.
9. The display device according to claim 7, wherein the curved structure of the second portion facing the flexible display module comprises a quarter-circle arc surface;
the orthographic projection of the hollowed-out rail on the light-emitting surface of the flexible display module is not overlapped with the orthographic projection of the first portion on the light-emitting surface of the flexible display module.
10. The display device according to claim 7, wherein the curved structure of the second portion facing the flexible display module comprises a half-arc surface;
the hollow track is in the orthographic projection of flexible display module assembly play plain noodles covers the second portion is in the orthographic projection of flexible display module assembly play plain noodles, just the hollow track is in the orthographic projection of flexible display module assembly play plain noodles with the first portion is in the orthographic projection of flexible display module assembly play plain noodles is at least partial overlap.
11. The display device according to claim 1, wherein the curved surface structure of the second portion facing the flexible display module is a circular arc surface;
the radius of the circular arc surface is R1, and the ultimate bending radius of the flexible display module in the first area is R2; wherein R1 is more than or equal to R2.
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