CN114038322A - Display module assembly and display device can curl - Google Patents
Display module assembly and display device can curl Download PDFInfo
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- CN114038322A CN114038322A CN202111388366.7A CN202111388366A CN114038322A CN 114038322 A CN114038322 A CN 114038322A CN 202111388366 A CN202111388366 A CN 202111388366A CN 114038322 A CN114038322 A CN 114038322A
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- display panel
- display module
- flexible display
- reel
- elastic
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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
Abstract
The invention discloses a display module capable of being curled and a display device. The flexible display panel, the scroll and the shell are accommodated in the flexible display module; the flexible display panel comprises a curled end, and the curled end is connected with the scroll; the two ends of the scroll are connected with the shell through elastic structures. According to the rollable display module and the display device, the two ends of the scroll are connected with the shell through the elastic structures, so that the flexible display panel is stretched through the elastic force of the elastic structures when the flexible display panel is unfolded, the problem that the stress is uneven due to assembly errors is solved, the folds of the flexible display panel are reduced, the problems of deflection, folds and damage of the existing rollable display module when the flexible display panel is unfolded are solved, and the flexible display panel can be unfolded smoothly.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display module capable of being curled and a display device.
Background
With the continuous development of display technology, various display products with different characteristics are produced to meet different use requirements. The flexible display device is a novel display product with flexibility, and when the flexible display device is used, a user can fold or curl the flexible display device according to needs so as to reduce the size of the display device and improve the portability of the display device. Alternatively, the foldable display device may be unfolded to obtain a large display screen.
However, when the existing flexible display device is rolled or unfolded, the problems of screen skew, wrinkle and edge breakage are easy to occur.
Disclosure of Invention
The invention provides a rollable display module and a display device, which are used for solving the problems of deflection, wrinkle and edge damage when the rollable display module is rolled or unfolded.
In a first aspect, an embodiment of the present invention provides a rollable display module, including:
a flexible display panel, a reel, an elastic structure, and a housing accommodating the flexible display panel, the reel, and the elastic structure;
the flexible display panel comprises a curled end connected with the reel;
and two ends of the scroll are connected with the shell through the elastic structures.
In a second aspect, an embodiment of the present invention further provides a display device, including the rollable display module according to the first aspect.
According to the rollable display module and the display device provided by the embodiment of the invention, the two ends of the scroll are connected with the shell through the elastic structures, so that the flexible display panel is stretched through the elastic force of the elastic structures when the flexible display panel is unfolded, the problem of uneven stress caused by assembly errors is solved, the folds of the flexible display panel are reduced, the problems of deflection, folds and breakage of the existing rollable display module when the flexible display panel is unfolded are solved, and the flexible display panel can be unfolded smoothly.
Drawings
Fig. 1 is a schematic side view of a rollable display module according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a partial top view structure of a rollable display module according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a conventional rollable display module;
fig. 4 is a schematic partial structure diagram of a rollable display module according to an embodiment of the present invention;
FIG. 5 is a schematic view of a partial structure of another rollable display module according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a side view of another rollable display module according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a partial top view structure of another rollable display module according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a side view of a rollable display module according to an embodiment of the present invention;
fig. 9 is a schematic top view of a portion of a rollable display module according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a partial top view of a rollable display module according to another embodiment of the present invention;
fig. 11 is a schematic top view of a portion of a rollable display module according to an embodiment of the present invention;
fig. 12 is a schematic diagram of a partial top view of another rollable display module according to an embodiment of the present invention;
FIG. 13 is a schematic diagram of a side view of a rollable display module according to an embodiment of the present invention;
FIG. 14 is a schematic side view of another rollable display module according to an embodiment of the present invention;
FIG. 15 is a schematic diagram of a side view of a rollable display module according to an embodiment of the invention;
fig. 16 is a schematic diagram of a partial top view structure of another rollable display module according to an embodiment of the present invention;
fig. 17 is an enlarged schematic structural view of a rollable display module according to an embodiment of the present invention at a first gap;
fig. 18 is an enlarged schematic structural view of another rollable display module according to an embodiment of the present invention at a first gap;
fig. 19 is an enlarged structural view of a rollable display module according to an embodiment of the invention at a first gap;
fig. 20 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic side view of a rollable display module according to an embodiment of the present invention, and fig. 2 is a schematic partial top view of the rollable display module according to the embodiment of the present invention, as shown in fig. 1, the rollable display module according to the embodiment of the present invention includes a flexible display panel 10, a reel 11, an elastic structure 12, and a housing 13 accommodating the flexible display panel 10, the reel 11, and the elastic structure 12, where the flexible display panel 10 includes a curled end 101, the curled end 101 is connected to the reel 11, and two ends of the reel 11 are connected to the housing 13 through the elastic structure 12.
As shown in fig. 1 and 2, the rollable display module includes a flexible display panel 10 and a reel 11, and a rolled end 101 of the flexible display panel 10 is fixedly connected to the reel 11. The rollable display module may include a rolled state in which the flexible display panel 10 is wound on the reel 11, and an unfolded state, so as to improve the portability of the display device; in the unfolded state, the flexible display panel 10 is unfolded in the axial direction perpendicular to the reels 11 to obtain a large display screen.
Fig. 3 is a schematic structural diagram of a conventional rollable display module, and as shown in fig. 3, the two ends of the reel 11 are stressed unevenly due to factors such as assembly errors, so that the flexible display panel 10 is tilted and wrinkled when being unfolded, and the flexible display panel 10 is easily damaged due to over-stretching on the tensioned side of the flexible display panel 10.
In the present embodiment, as shown in fig. 1 and fig. 2, two ends of the winding shaft 11 are connected to the housing 13 through the elastic structure 12, so that when the flexible display panel 10 is unfolded, the flexible display panel 10 is stretched by the elastic force of the elastic structure 12, uneven stress caused by assembly error is improved, wrinkles of the flexible display panel 10 are reduced, and the flexible display panel 10 is unfolded smoothly.
Optionally, the specific arrangement manner of the elastic structure 12 may also be set according to actual requirements, for example, the elastic structure 12 includes the elastic element 15, the elastic element 15 may be made of any elastic material, and the number of the elastic elements 15 may also be set arbitrarily, which is not limited in this embodiment of the present invention.
For example, as shown in fig. 1 and fig. 2, two ends of the reel 11 may be respectively connected to the housing through two elastic elements 15, so as to provide a certain pulling force to the two ends of the reel 11 when the flexible display panel 10 is unfolded, so that the flexible display panel 10 is unfolded flatly, wherein the elastic elements 15 may be indirectly connected to the housing through the fixing structures 16, and in other embodiments, the elastic elements 15 may also be directly connected to the housing.
Further, the two elastic elements 15 may have the same elastic force, so as to provide equal pulling force to the two ends of the scroll 11 when the flexible display panel 10 is unfolded, thereby further improving the problem of uneven stress, but due to the limitation of the process conditions or other factors, the elastic force of the elastic elements 15 may have some deviation, but the skew and wrinkle phenomena occurring when the flexible display panel 10 is unfolded can be improved as long as the above conditions are substantially satisfied.
It should be noted that, in order to clearly illustrate the internal structure of the rollable display module, the housing is not drawn in fig. 2.
According to the rollable display module provided by the embodiment of the invention, the two ends of the scroll 11 are connected with the shell 13 through the elastic structures 12, so that when the flexible display panel 10 is unfolded, the flexible display panel 10 is stretched through the elastic force of the elastic structures 12, uneven stress caused by assembly errors is improved, wrinkles of the flexible display panel 10 are reduced, the problems of deflection, wrinkles and breakage of the existing rollable display module when the flexible display panel 10 is unfolded are solved, and the flexible display panel 10 can be unfolded smoothly.
Fig. 4 is a partial schematic structural diagram of a rollable display module according to an embodiment of the present invention, as shown in fig. 4, optionally, the elastic structure 12 includes a positioning post set 14 and an elastic element 15, the positioning post set 14 is fixedly connected to the housing 13, the elastic element 15 includes a first connection end 151 and a second connection end 152, the first connection end 151 is connected to one end of the spool 11, and the second connection end 152 is connected to the other end of the spool 11 by bypassing the positioning post set 14.
Specifically, as shown in fig. 4, the first connection end 151 of the elastic element 15 is connected to one end of the reel 11, and the second connection end 152 of the elastic element 15 bypasses the positioning column group 14 to change the extending direction of the elastic element 15, so as to be connected to the other end of the reel 11, so that the two ends of the reel 11 can be connected to the housing 13 through the same elastic element 15, thereby making the stress at the two ends of the reel 11 uniform, further improving the problem of non-uniform stress at the two ends of the reel 11, reducing the wrinkles of the flexible display panel 10, and flatly unfolding the flexible display panel 10.
With continued reference to fig. 4, optionally, the positioning column set 14 includes at least one positioning column 141, and the at least one positioning column 141 is disposed symmetrically with respect to the central axis 102 of the flexible display panel 10 along a direction perpendicular to the first plane, where the central axis 102 is perpendicular to the axial direction of the reel 11, and the first plane is a plane in which the flexible display panel 10 is unfolded.
For example, as shown in fig. 4, taking the positioning column set 14 as an example that one positioning column 141 is included, the positioning column 141 is located in the extending direction of the central axis 102 of the flexible display panel 10, so that the stress directions at the two ends of the reel 11 are symmetrical, thereby further improving the problem of uneven stress at the two ends of the reel 11, reducing the wrinkles of the flexible display panel 10, and enabling the flexible display panel 10 to be flatly unfolded.
Fig. 5 is a schematic partial structure view of another rollable display module according to an embodiment of the present invention, as shown in fig. 5, exemplarily, the positioning post set 14 may further include two positioning posts 141, and the two positioning posts 141 are symmetrically disposed about the central axis 102 of the flexible display panel 10, so that the stress directions at the two ends of the reel 11 are symmetrical, and thus the problem of non-uniform stress at the two ends of the reel 11 can be further improved, and wrinkles of the flexible display panel 10 are reduced, so that the flexible display panel 10 is flatly unfolded.
In other embodiments, the positioning column set 14 may further include more positioning columns 141, and those skilled in the art can set the positioning columns according to actual needs, which is not limited in the embodiments of the present invention.
With continued reference to fig. 4 and 5, optionally, locating post 141 includes a pulley.
When the flexible display panel 10 is unfolded, the elastic element 15 is stretched, and if the tensile forces of the elastic elements 15 on the two sides of the positioning column 141 are not consistent, the elastic element 15 slides on the positioning column 141 under the tensile force, so that the tensile forces of the elastic elements 15 on the two sides of the positioning column 141 tend to be consistent, but a friction force exists between the elastic element 15 and the positioning column 141, which may cause the tensile forces of the elastic elements 15 on the two sides of the positioning column 141 to have a certain deviation.
In this embodiment, as shown in fig. 4 and 5, the positioning column 141 is a pulley to reduce the friction force of the elastic element 15 moving on the positioning column 141, so that the tensile forces of the elastic elements 15 on the two sides of the positioning column 141 are consistent, and further the tensile forces of the two ends of the scroll 11 are consistent, thereby solving the problem of uneven stress at the two ends of the scroll 11, reducing the wrinkles of the flexible display panel 10, and flatly unfolding the flexible display panel 10.
For example, as shown in fig. 4 and 5, the pulley may be a fixed pulley, a bearing of the fixed pulley is perpendicular to a plane where the flexible display panel 10 is unfolded, when the flexible display panel 10 is unfolded, the elastic element 15 is stretched, and when there is a slight difference in tension of the elastic elements 15 on both sides of the positioning column 141, the pulley rotates around the bearing, so that the tension of the elastic elements 15 on both sides of the positioning column 141 tends to be consistent, and further the tension of both ends of the reel 11 is consistent, thereby solving the problem of uneven stress at both ends of the reel 11, and enabling the flexible display panel 10 to be unfolded smoothly.
With continued reference to fig. 4 and 5, optionally, the shortest distance between the connection end of the first connection end 151 and the reel 11 and the flexible display panel 10 is D1, and the shortest distance between the connection end of the second connection end 152 and the reel 11 and the flexible display panel 10 is D2, where D1 is D2.
As shown in fig. 4 and 5, by setting the shortest distance D1 between the connection end of the first connection end 151 and the reel 11 and the flexible display panel 10 to be equal to the shortest distance D2 between the connection end of the second connection end 152 and the reel 11 and the flexible display panel 10, the stress directions at the two ends of the reel 11 are symmetrical, so that the problem of uneven stress at the two ends of the reel 11 can be further improved, and the flexible display panel 10 can be flatly unfolded.
Fig. 6 is a schematic side view of another rollable display module according to an embodiment of the present invention, and fig. 7 is a schematic partial top view of the rollable display module according to the embodiment of the present invention, as shown in fig. 6 and fig. 7, optionally, the elastic structure 12 further includes a first sleeve 17 and a second sleeve 18, the first sleeve 17 is sleeved on one end of the reel 11, the second sleeve 18 is sleeved on the other end of the reel 11, so that two ends of the reel 11 rotate in the first sleeve 17 and the second sleeve 18 respectively, the first connection end 151 is connected to the first sleeve 17, and the second connection end 152 is connected to the second sleeve 18 by bypassing the positioning column group 14.
As shown in fig. 6 and 7, when the flexible display panel 10 is unfolded, the reel 11 needs to rotate, in this embodiment, the elastic element 15 is connected to two ends of the reel 11 through the first sleeve 17 and the second sleeve 18, so that friction between two ends of the reel 11 and the first sleeve 17 and the second sleeve 18 is small, and thus when the flexible display panel 10 is unfolded, the reel 11 rotates more easily, and the flexible display panel 10 is prevented from being damaged due to a large pulling force when being unfolded.
It should be noted that the connection manner of the elastic element 15 and the two ends of the winding shaft 11 is not limited to the above embodiment, in other embodiments, the first connection end 151 and the second connection end 152 of the elastic element 15 may be configured as a ring buckle, the ring buckle is directly sleeved on the two ends of the winding shaft 11, the two ends of the winding shaft 11 may rotate in the ring buckle, so as to facilitate the unfolding of the flexible display panel 10, and a person skilled in the art may set the connection manner according to actual requirements as long as the winding shaft 11 is ensured to be able to rotate, which is not limited in the embodiment of the present invention.
Fig. 8 is a schematic side view of a rollable display module according to an embodiment of the present invention, as shown in fig. 8, optionally, the housing 13 includes a guide groove 19, an extending direction of the guide groove 19 is perpendicular to an axial direction of the spool 11, and two ends of the spool 11 are slidably disposed in the guide groove 19, so that the spool 11 moves along the extending direction of the guide groove 19.
Specifically, as shown in fig. 8, when the flexible display panel 10 is unfolded, the elastic element 15 is stretched by a tensile force, and the scroll 11 moves to the left by a certain distance, and when the flexible display panel 10 is rolled, the tensile force applied to the elastic element 15 is reduced, and the scroll 11 moves to the right.
In this embodiment, the guiding groove 19 is disposed on the housing 13, and two ends of the winding shaft 11 are slidably disposed in the guiding groove 19 to limit the moving space of the winding shaft 11, so that the winding shaft 11 and the housing 13 perform limited relative movement, thereby preventing the winding shaft 11 from swinging up and down during movement to cause wrinkles on the flexible display panel 10, and meanwhile, preventing the elastic element 15 from being stretched too long to recover.
The length and width of the guide groove 19 may be set according to the end diameter of the spool 11, for example, as shown in fig. 8, the length D3 of the guide groove 19 is 1.5 to 3 times the end diameter of the spool 11. For example, the guide groove 19 may be formed to have a length 2 times the diameter of the end of the spool 11 so that the end of the spool 11 moves leftward and rightward by a distance about twice the diameter of the end of the spool 11. Meanwhile, the width D4 of the guide groove 19 may be slightly larger than the diameter of the end of the spool 11 to facilitate the movement of the end of the spool 11 in the extending direction of the guide groove 19.
It should be noted that, when the elastic element 15 is connected to the two ends of the winding shaft 11 through the first sleeve 17 and the second sleeve 18, the length D3 of the guiding groove 19 may be set to be 1.5 to 3 times, for example 2 times, the diameter of the first sleeve 17 and the second sleeve 18, and the width D4 of the guiding groove 19 may be slightly larger than the diameter of the first sleeve 17 and the second sleeve 18.
Fig. 9 is a schematic partial top view of a rollable display module according to an embodiment of the present invention, as shown in fig. 9, optionally, the elastic element 15 includes an elastic string.
For example, as shown in fig. 9, the elastic element 15 may be an elastic cord, one end of the elastic cord is connected to one end of the reel 11 as a first connection end 151, and the other end of the elastic cord is connected to the other end of the reel 11 as a second connection end 152 bypassing the positioning column group 14, so that the two ends of the reel 11 are connected to the housing 13 through one elastic cord, the stress on the two ends of the reel 11 is uniform, the problem of uneven stress on the two ends of the reel 11 is solved, and wrinkles of the flexible display panel 10 are reduced, so that the flexible display panel 10 is unfolded smoothly.
With continued reference to fig. 4, 5 and 7, the elastic element 15 may alternatively comprise at least one spring 20 and a flexible connecting cord 21, the spring 20 being connected to both ends of the spool 11 by the flexible connecting cord 21.
Illustratively, as shown in fig. 4, 5 and 7, the elastic element 15 is composed of a spring 20 and a flexible connecting rope 21, the spring 20 is used for providing elastic tension, and the flexible connecting rope 21 is relatively flexible and is convenient to connect, and meanwhile, the flexible connecting rope is convenient to bypass the positioning column group 14 so as to change the tension direction.
Fig. 10 is a partial top view structure diagram of another rollable display module according to an embodiment of the present invention, fig. 11 is a partial top view structure diagram of another rollable display module according to an embodiment of the present invention, and fig. 12 is a partial top view structure diagram of another rollable display module according to an embodiment of the present invention, as shown in fig. 10-12, optionally, at least one spring 20 is symmetrically disposed about a central axis 102 of the flexible display panel 10, wherein the central axis 102 is perpendicular to an axial direction of the reel 11.
For example, as shown in fig. 10, taking the elastic element 15 including one spring 20 and the positioning column set 14 including two positioning columns 141 as an example, the spring 20 may be located between the two positioning columns 141, and the spring 20 is on the central axis 102 of the flexible display panel 10, which is helpful to make the forces applied to the two ends of the scroll 11 uniform, so as to further improve the problem of uneven stress at the two ends of the scroll 11, reduce the wrinkles of the flexible display panel 10, and make the flexible display panel 10 unfold smoothly.
For another example, as shown in fig. 11, taking the elastic element 15 including two springs 20 and the positioning column set 14 including two positioning columns 141 as an example, the two springs 20 are respectively located at two sides of the positioning column set 14 and symmetrically disposed about the central axis 102 of the flexible display panel 10, so that the stress directions at two ends of the reel 11 are symmetrical, the problem of non-uniform stress at two ends of the reel 11 can be further improved, the wrinkles of the flexible display panel 10 are reduced, and the flexible display panel 10 is flatly unfolded.
For another example, as shown in fig. 12, the elastic element 15 includes three springs 20, and the positioning column set 14 includes two positioning columns 141, where the two springs 20 are respectively located at two sides of the positioning column set 14, and one spring 20 may be located between the two positioning columns 141, and is symmetrically disposed about the central axis 102 of the flexible display panel 10, so that the force directions at two ends of the reel 11 are symmetrical, and thus the problem of uneven stress at two ends of the reel 11 can be further improved, and wrinkles of the flexible display panel 10 are reduced, so that the flexible display panel 10 is flatly unfolded.
In other embodiments, the elastic element 15 may further include more springs 20, which may be set by those skilled in the art according to actual needs, and the embodiment of the present invention is not limited thereto.
With continued reference to fig. 1, 6 and 8, optionally, the housing 13 is a telescopic housing, the telescopic housing includes a first end 131 and a second end 132 which are oppositely disposed, a distance between the first end 131 and the second end 132 is variable, both ends of the reel 11 are connected with the first end 131 of the housing 13 through the elastic structure 12, the flexible display panel 10 further includes a free end 103 which is oppositely disposed with the curled end 101, and the free end 103 is connected with the second end 132 of the housing 13.
For example, fig. 13 is a schematic side view of another rollable display module according to an embodiment of the present invention, as shown in fig. 8 and 13, two ends of the reel 11 are connected to a first end 131 of the housing 13 through the elastic structure 12, the free end 103 of the flexible display panel 10 is connected to a second end 132 of the housing 13, and a distance between the first end 131 and the second end 132 of the housing 13 is variable. Thus, in the rolled state, the distance between the first end 131 and the second end 132 becomes smaller, the flexible display panel 10 is wound on the reel 11, and the housing 13 is smaller in size to improve portability; in the unfolded state, the distance between the first end 131 and the second end 132 becomes larger, and the second end 132 of the housing 13 drives the free end 103 of the flexible display panel 10 to move in the direction away from the first end 131 of the housing 13, so that the flexible display panel 10 is unfolded to increase the display area.
Fig. 14 is a schematic side view of a rollable display module according to an embodiment of the invention, as shown in fig. 14, optionally, the rollable display module according to an embodiment of the invention further includes a moving shaft 22, the free end 103 is connected to the moving shaft 22, the elastic structure 12 includes a first elastic structure 121 and a second elastic structure 122, two ends of the winding shaft 11 are connected to a first end 131 of the housing 13 through the first elastic structure 121, and two ends of the moving shaft 22 are connected to a second end 132 of the housing 13 through the second elastic structure 122.
Specifically, as shown in fig. 14, by connecting both ends of the reel 11 with the housing 13 through the first elastic structures 121, when the flexible display panel 10 is unfolded, the curled end 101 of the flexible display panel 10 is stretched by the elastic force of the first elastic structures 121, so that the stress unevenness caused by the assembly error of the reel 11 is improved; by connecting the two ends of the moving shaft 22 with the second end 132 of the housing 13 through the second elastic structure 122, when the flexible display panel 10 is unfolded, the free end 103 of the flexible display panel 10 is stretched by the elastic force of the second elastic structure 122, so that uneven stress caused by the assembly error of the moving shaft 22 is improved, and wrinkles of the flexible display panel 10 are reduced, so that the flexible display panel 10 is unfolded smoothly.
The specific structures of the first elastic structure 121 and the second elastic structure 122 can refer to the specific structures of the elastic structure 12 in the above embodiments, which are not described herein again.
Fig. 15 is a schematic side view of another rollable display module according to an embodiment of the invention, as shown in fig. 15, optionally, the diameter of the moving shaft 22 is smaller than that of the winding shaft 11.
As shown in fig. 15, the movement shaft 22 is provided with a small diameter, which can save the occupied space and contribute to the miniaturization of the display device; by setting the diameter of the reel 11 to be large, when the flexible display panel 10 is wound on the reel 11, damage to the flexible display panel 10 can be reduced, and the service life can be prolonged.
Fig. 16 is a partial top view structural schematic diagram of another rollable display module according to an embodiment of the present invention, as shown in fig. 14 and 16, optionally, the first elastic structure 121 includes a first positioning column group 23 and a first elastic element 24, the first positioning column group 23 is fixedly connected to the first end 131 of the housing 13, the first elastic element 24 includes a first nail connection end 241 and a second connection end 242, the first nail connection end 241 is connected to one end of the spool 11, and the second connection end 242 is connected to the other end of the spool 11 by bypassing the first positioning column group 23. The second elastic structure 122 includes a second positioning column set 25 and a second elastic element 26, the second positioning column set 25 is fixedly connected with the second end 132 of the housing 13, the second elastic element 26 includes a first second connection end 261 and a second connection end 262, the first second connection end 261 is connected with one end of the moving shaft 22, the second connection end 262 is connected with the other end of the moving shaft 22 by bypassing the second positioning column set 25, wherein the elastic coefficient of the second elastic element 26 is greater than that of the first elastic element 24.
For example, as shown in fig. 14 and 16, in the unfolded state, the distance between the first end 131 and the second end 132 of the housing 13 is increased, and the second end 132 of the housing 13 drives the free end 103 of the flexible display panel 10 to move away from the first end 131 of the housing 13, and further drives the reel 11 to rotate, so that the flexible display panel 10 is unfolded, in this embodiment, by setting the elastic coefficient of the second elastic element 26 to be larger, the second elastic element 26 can generate a larger pulling force, so that the reel 11 is easily pulled to rotate, and meanwhile, the larger elastic coefficient of the second elastic element 26 also helps to reduce the telescopic distance of the second elastic element 26, so that the space is saved, and the miniaturization design of the display device is facilitated; moreover, the elastic coefficient of the first elastic element 24 is set to be smaller, so that the elasticity of the first elastic element 24 is better, the balance of the pulling force at the two ends of the scroll 11 is facilitated, the stress at the two ends of the scroll 11 is uniform, the wrinkles of the flexible display panel 10 are reduced, and the flexible display panel 10 is flatly unfolded.
The specific structures of the first positioning column group 23 and the second positioning column group 25 can refer to the specific structure of the positioning column group 14 in the above embodiment, and the specific structures of the first elastic element 24 and the second elastic element 26 can refer to the specific structure of the elastic element 15 in the above embodiment, which are not described herein again.
With continued reference to fig. 1, 6, 8, 13-15, optionally, a first gap 27 is included between the housing 13 and the spool 11, the flexible display panel 10 protrudes through the first gap 27 when unrolled, and an edge of the housing 13 on a side adjacent to the first gap 27 includes a chamfer.
Fig. 17 is an enlarged schematic structural diagram of a rollable display module according to an embodiment of the present invention at a first gap, as shown in fig. 17, for example, when the flexible display panel 10 is unfolded or rolled, the flexible display panel 10 extends or retracts through the first gap 27, and the flexible display panel 10 may rub against an edge of the housing 13 near the first gap 27, so that the flexible display panel 10 is easily scratched. In this embodiment, by providing a chamfer on the edge of the housing 13 on the side close to the first gap 27, the abrasion of the edge of the housing 13 on the side close to the first gap 27 on the flexible display panel 10 can be reduced, and the flexible display panel 10 can be prevented from being scratched by the housing 13.
The shape and size of the chamfer can be set according to actual requirements, as long as the abrasion of the edge of the housing 13 close to the first gap 27 side to the flexible display panel 10 can be reduced, and the chamfer can be set by those skilled in the art according to actual requirements.
For example, as shown in fig. 17, the chamfer may be a 45 ° chamfer.
For another example, fig. 18 is an enlarged structural schematic view of another rollable display module provided in the embodiment of the present invention at the first gap, and fig. 19 is an enlarged structural schematic view of another rollable display module provided in the embodiment of the present invention at the first gap, as shown in fig. 18 and fig. 19, the chamfer may also be an arc chamfer, which is not limited in the embodiment of the present invention.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, fig. 20 is a schematic structural diagram of the display device provided in the embodiment of the present invention, and as shown in fig. 20, the display device 28 includes the rollable display module 29 according to any embodiment of the present invention, so that the display device 28 provided in the embodiment of the present invention has the technical effects of the technical solutions in any embodiment, and explanations of structures and terms that are the same as or corresponding to the embodiments are not repeated herein.
Optionally, the display device 28 provided in the embodiment of the present invention may be any one of a foldable display device and a rollable display device, and the embodiment of fig. 20 is only an example of a mobile phone, and it is understood that the display device 28 provided in the embodiment of the present invention may be the mobile phone shown in fig. 20, and may also be any electronic product having a display function, including but not limited to the following categories: the touch screen display system comprises a television, a notebook computer, a desktop display, a tablet computer, a digital camera, an intelligent bracelet, intelligent glasses, a vehicle-mounted display, medical equipment, industrial control equipment, a touch interaction terminal and the like, and the embodiment of the invention is not particularly limited in this respect.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (16)
1. A rollable display module, comprising:
a flexible display panel, a reel, an elastic structure, and a housing accommodating the flexible display panel, the reel, and the elastic structure;
the flexible display panel comprises a curled end connected with the reel;
and two ends of the scroll are connected with the shell through the elastic structures.
2. A rollable display module according to claim 1,
the elastic structure comprises a positioning column group and an elastic element;
the positioning column group is fixedly connected with the shell, the elastic element comprises a first connecting end and a second connecting end, the first connecting end is connected with one end of the scroll, and the second connecting end bypasses the positioning column group and is connected with the other end of the scroll.
3. A rollable display module according to claim 2,
the positioning column group comprises at least one positioning column;
along the direction perpendicular to a first plane, at least one positioning column is symmetrically arranged relative to a central axis of the flexible display panel, wherein the central axis is perpendicular to the axial direction of the scroll, and the first plane is a plane where the flexible display panel is located when the flexible display panel is unfolded.
4. A rollable display module according to claim 3,
the positioning column comprises a pulley.
5. A rollable display module according to claim 2,
the shortest distance between the connection end of the first connection end and the reel and the flexible display panel is D1, and the shortest distance between the connection end of the second connection end and the reel and the flexible display panel is D2, wherein D1 is D2.
6. A rollable display module according to claim 2,
the elastic structure further comprises a first sleeve and a second sleeve, the first sleeve is sleeved at one end of the reel, the second sleeve is sleeved at the other end of the reel, and therefore the two ends of the reel rotate in the first sleeve and the second sleeve respectively;
the first connecting end is connected with the first sleeve, and the second connecting end bypasses the positioning column group and is connected with the second sleeve.
7. A rollable display module according to claim 1,
the shell comprises a guide groove, the extending direction of the guide groove is perpendicular to the axial direction of the scroll, and two ends of the scroll are arranged in the guide groove in a sliding mode, so that the scroll moves along the extending direction of the guide groove.
8. A rollable display module according to claim 2,
the elastic element comprises a bungee cord.
9. A rollable display module according to claim 2,
the elastic element comprises at least one spring and a flexible connecting rope;
the spring is connected with the two ends of the reel through the flexible connecting rope.
10. A rollable display module according to claim 9,
at least one of the springs is symmetrically disposed about a central axis of the flexible display panel, wherein the central axis is perpendicular to an axial direction of the reel.
11. A rollable display module according to claim 1,
the shell is a telescopic shell, the telescopic shell comprises a first end and a second end which are oppositely arranged, and the distance between the first end and the second end is variable;
the two ends of the scroll are connected with the first end of the shell through the elastic structure;
the flexible display panel further includes a free end disposed opposite the curled end, the free end being connected to the second end of the housing.
12. The rollable display module of claim 11,
the rollable display module further comprises a moving shaft, and the free end is connected with the moving shaft;
the elastic structure comprises a first elastic structure and a second elastic structure, the two ends of the scroll are connected with the first end of the shell through the first elastic structure, and the two ends of the moving shaft are connected with the second end of the shell through the second elastic structure.
13. A rollable display module according to claim 12,
the diameter of the moving shaft is smaller than that of the reel.
14. A rollable display module according to claim 12,
the first elastic structure comprises a first positioning column group and a first elastic element;
the first positioning column group is fixedly connected with the first end of the shell, the first elastic element comprises a first connecting end and a second connecting end, the first connecting end is connected with one end of the reel, and the second connecting end bypasses the first positioning column group and is connected with the other end of the reel;
the second elastic structure comprises a second positioning column group and a second elastic element;
the second positioning column group is fixedly connected with the second end of the shell, the second elastic element comprises a first second connecting end and a second connecting end, the first second connecting end is connected with one end of the moving shaft, and the second connecting end bypasses the second positioning column group and is connected with the other end of the moving shaft;
wherein the elastic coefficient of the second elastic element is greater than the elastic coefficient of the first elastic element.
15. A rollable display module according to claim 1,
the housing and the spool including a first gap therebetween through which the flexible display panel protrudes when deployed;
the edge of the housing on the side near the first gap comprises a chamfer.
16. A display device comprising the rollable display module according to any one of claims 1 to 15.
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| CN202111388366.7A CN114038322B (en) | 2021-11-22 | 2021-11-22 | Rollable display module and display device |
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| CN202111388366.7A CN114038322B (en) | 2021-11-22 | 2021-11-22 | Rollable display module and display device |
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