CN114038322B - Rollable display module and display device - Google Patents
Rollable display module and display device Download PDFInfo
- Publication number
- CN114038322B CN114038322B CN202111388366.7A CN202111388366A CN114038322B CN 114038322 B CN114038322 B CN 114038322B CN 202111388366 A CN202111388366 A CN 202111388366A CN 114038322 B CN114038322 B CN 114038322B
- Authority
- CN
- China
- Prior art keywords
- display module
- display panel
- flexible display
- scroll
- positioning column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
Abstract
The invention discloses a rollable display module and a display device. The flexible display module comprises a flexible display panel, a scroll, an elastic structure and a shell for accommodating the flexible display panel, the scroll and the elastic structure; the flexible display panel comprises a curled end which is connected with the scroll; the two ends of the scroll are connected with the shell through an elastic structure. According to the rollable display module and the display device, the two ends of the scroll are connected with the shell through the elastic structure, so that when the flexible display panel is unfolded, the flexible display panel is stretched through the elasticity of the elastic structure, uneven stress caused by assembly errors is improved, wrinkles of the flexible display panel are reduced, and the problems of deflection, wrinkles and breakage of the conventional rollable display module when the flexible display panel is unfolded are solved, so that 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 rollable display module and a display device.
Background
With the development of display technology, various display products with different characteristics have been developed to meet different use requirements. The flexible display device is a novel flexible display product, and when the flexible display device is used, a user can fold or curl the flexible display device according to the needs, so that the size of the display device is reduced, and the portability of the display device is improved. Alternatively, the foldable display device may be unfolded to obtain a larger display screen.
However, when the conventional flexible display device is rolled up or unfolded, the problems of screen deflection, wrinkling and edge breakage are likely 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, wrinkling 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 includes a curled end connected to the reel;
the two ends of the scroll are connected with the shell through the elastic structure.
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, the two ends of the scroll are connected with the shell through the elastic structure, so that when the flexible display panel is unfolded, the flexible display panel is stretched through the elasticity of the elastic structure, uneven stress caused by assembly errors is improved, wrinkles of the flexible display panel are reduced, and the problems of deflection, wrinkles and damage of the conventional rollable display module when the flexible display panel is unfolded are solved, so that 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 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 diagram of a partial structure of another rollable display module according to an embodiment of the present invention;
FIG. 6 is a schematic side view of another exemplary rollable display module according to the present invention;
FIG. 7 is a schematic diagram of a partial top view of another rollable display module according to an 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;
FIG. 9 is a schematic diagram illustrating a partial top view of a rollable display module according to an embodiment of the present invention;
FIG. 10 is a schematic diagram illustrating a partial top view of a rollable display module according to an embodiment of the present invention;
FIG. 11 is a schematic diagram illustrating a partial top view of a rollable display module according to an embodiment of the present invention;
FIG. 12 is a schematic top view of a portion of a rollable display module according to an embodiment of the present invention;
FIG. 13 is a schematic side view of a rollable display module according to an embodiment of the present invention;
FIG. 14 is a schematic side view of a rollable display module according to an embodiment of the present invention;
FIG. 15 is a schematic side view of a rollable display module according to an embodiment of the present invention;
FIG. 16 is a schematic top view of a portion of a rollable display module according to an embodiment of the present invention;
fig. 17 is an enlarged schematic view of a rollable display module according to an embodiment of the present invention at a first gap;
FIG. 18 is an enlarged view of a display module with a first gap according to another embodiment of the present invention;
FIG. 19 is an enlarged view of a display module with a first gap according to another embodiment of the present invention;
fig. 20 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Fig. 1 is a schematic side view structure of a rollable display module according to an embodiment of the present invention, and fig. 2 is a schematic partial top view structure of a rollable display module according to an embodiment of the present invention, where, as shown in fig. 1, the rollable display module according to an embodiment of the present invention includes a flexible display panel 10, a roller 11, an elastic structure 12, and a housing 13 for accommodating the flexible display panel 10, the roller 11, and the elastic structure 12, the flexible display panel 10 includes a curled end 101, the curled end 101 is connected with the roller 11, and two ends of the roller 11 are connected with 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 roller 11, and a curled end 101 of the flexible display panel 10 is fixedly connected to the roller 11. The rollable display module may include a rolled state in which the flexible display panel 10 is wound on the reel 11 to improve portability of the display device, and an unrolled state; in the unfolded state, the flexible display panel 10 is unfolded in the axial direction perpendicular to the reel 11 to obtain a larger display screen.
Fig. 3 is a schematic structural diagram of a conventional rollable display module, as shown in fig. 3, the conventional rollable display module can make the stress on both ends of the roller 11 uneven due to assembly errors, so that the flexible display panel 10 is stretched out to be skewed and wrinkled, and the flexible display panel 10 is easily damaged due to overstretched at the stretched side of the flexible display panel 10.
In the present embodiment, as shown in fig. 1 and 2, the two ends of the reel 11 are connected with 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 through the elastic force of the elastic structure 12, so that uneven stress caused by assembly errors is improved, and wrinkles of the flexible display panel 10 are reduced, so that the flexible display panel 10 is unfolded smoothly.
Alternatively, the specific arrangement manner of the elastic structure 12 may be set according to actual needs, for example, the elastic structure 12 includes the elastic elements 15, the elastic elements 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 the embodiment of the present invention.
For example, as shown in fig. 1 and 2, two ends of the reel 11 may be connected to the housing through two elastic elements 15, respectively, so as to provide a certain tensile 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 smoothly, where the elastic elements 15 may be indirectly connected to the housing through the fixing structure 16, and in other embodiments, the elastic elements 15 may be directly connected to the housing.
Further, the elastic forces of the two elastic elements 15 may be the same, so as to provide equal pulling force to the two ends of the reel 11 when the flexible display panel 10 is unfolded, so as to further improve 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 wrinkling phenomenon 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 structure 12, so that when the flexible display panel 10 is unfolded, the flexible display panel 10 is stretched through the elasticity of the elastic structure 12, uneven stress caused by assembly errors is improved, wrinkles of the flexible display panel 10 are reduced, and the problems of deflection, wrinkles and damage of the conventional rollable display module when the flexible display panel 10 is unfolded are solved, so that the flexible display panel 10 can be unfolded smoothly.
Fig. 4 is a schematic partial structure 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 column set 14 and an elastic element 15, the positioning column set 14 is fixedly connected with 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 with one end of the roller 11, and the second connection end 152 bypasses the positioning column set 14 to be connected with the other end of the roller 11.
Specifically, as shown in fig. 4, the first connection end 151 of the elastic element 15 is connected with one end of the spool 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 with the other end of the spool 11, so that the two ends of the spool 11 are connected with the housing 13 through the same elastic element 15, so that the stress at the two ends of the spool 11 is consistent, the problem of uneven stress at the two ends of the spool 11 is further improved, the wrinkles of the flexible display panel 10 are reduced, and the flexible display panel 10 is smoothly unfolded.
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 symmetrically disposed about the central axis 102 of the flexible display panel 10 along a direction perpendicular to a first plane, where the central axis 102 is perpendicular to an axial direction of the reel 11, and the first plane is a plane on which the flexible display panel 10 is unfolded.
As shown in fig. 4, for example, the positioning column group 14 includes one positioning column 141, where 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 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 the wrinkles of the flexible display panel 10 are reduced, so that the flexible display panel 10 is unfolded smoothly.
Fig. 5 is a schematic partial structure diagram of another rollable display module according to an embodiment of the present invention, as shown in fig. 5, the exemplary positioning column set 14 may further include two positioning columns 141, where the two positioning columns 141 are symmetrically disposed about the central axis 102 of the flexible display panel 10, so that stress directions at two ends of the roller 11 are symmetrical, and thus the problem of uneven stress at two ends of the roller 11 can be further improved, and wrinkles of the flexible display panel 10 are reduced, so that the flexible display panel 10 is unfolded smoothly.
In other embodiments, the positioning column set 14 may further include more positioning columns 141, which may be set by those skilled in the art according to actual requirements, which is not limited in the embodiments of the present invention.
With continued reference to fig. 4 and 5, the positioning post 141 optionally includes a pulley.
When the flexible display panel 10 is unfolded, the elastic element 15 is stretched, if the tensile forces of the elastic elements 15 at the two sides of the positioning post 141 are inconsistent, the elastic element 15 will slide on the positioning post 141 under the action of the tensile forces, so that the tensile forces of the elastic elements 15 at the two sides of the positioning post 141 tend to be consistent, but a friction force exists between the elastic element 15 and the positioning post 141, which may cause a certain deviation of the tensile forces of the elastic elements 15 at the two sides of the positioning post 141.
In this embodiment, as shown in fig. 4 and 5, the positioning column 141 is a pulley, so as to reduce the friction force of the elastic element 15 moving on the positioning column 141, so that the tensile force of the elastic element 15 at two sides of the positioning column 141 is consistent, and the tensile force at two ends of the reel 11 is consistent, thus solving the problem of uneven stress at two ends of the reel 11, reducing the wrinkles of the flexible display panel 10, and enabling the flexible display panel 10 to be unfolded smoothly.
As shown in fig. 4 and 5, the pulley may be a fixed pulley, the direction of the bearing of the fixed pulley is perpendicular to the 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 the tension of the elastic elements 15 on both sides of the positioning post 141, the pulley rotates around the bearing, so that the tension of the elastic elements 15 on both sides of the positioning post 141 tends to be uniform, the tension of both ends of the reel 11 is uniform, and the problem of uneven stress on both ends of the reel 11 is solved, so that the flexible display panel 10 is unfolded smoothly.
With continued reference to fig. 4 and 5, alternatively, the shortest distance between the connection end points 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 points of the second connection end 152 and the reel 11 and the flexible display panel 10 is D2, where d1=d2.
As shown in fig. 4 and fig. 5, by setting the shortest distance D1 between the connection end points 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 points of the second connection end 152 and the reel 11 and the flexible display panel 10, the stress directions of the two ends of the reel 11 are made symmetrical, so that the problem of uneven stress of the two ends of the reel 11 can be further improved, and the flexible display panel 10 is unfolded smoothly.
Fig. 6 is a schematic side view of another rollable display module according to an embodiment of the present invention, fig. 7 is a schematic partial top view of another rollable display module according to an embodiment of the present invention, and as shown in fig. 6 and 7, the elastic structure 12 may further include a first sleeve 17 and a second sleeve 18, the first sleeve 17 is sleeved at one end of the roller 11, the second sleeve 18 is sleeved at the other end of the roller 11, so that two ends of the roller 11 rotate in the first sleeve 17 and the second sleeve 18, respectively, the first connection end 151 is connected with the first sleeve 17, and the second connection end 152 bypasses the positioning column set 14 to connect with the second sleeve 18.
Wherein, 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 with two ends of the reel 11 through the first sleeve 17 and the second sleeve 18, so that friction force between two ends of the reel 11 and the first sleeve 17 and the second sleeve 18 is smaller, and when the flexible display panel 10 is unfolded, the reel 11 rotates more easily, and damage of the flexible display panel 10 due to larger pulling force when the flexible display panel 10 is unfolded is avoided.
It should be noted that, the connection manner between the elastic element 15 and the two ends of the spool 11 is not limited to the above embodiment, and in other embodiments, the first connection end 151 and the second connection end 152 of the elastic element 15 may be provided as a ring, the ring is directly sleeved on the two ends of the spool 11, and the two ends of the spool 11 may rotate in the ring, so that the flexible display panel 10 may be unfolded, which may be set by a person skilled in the art according to actual needs, so long as the spool 11 is guaranteed to rotate.
Fig. 8 is a schematic side view of still another 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 roller 11, and two ends of the roller 11 are slidably disposed in the guide groove 19, so that the roller 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 member 15 is stretched by a tensile force, the reel 11 moves leftward by a certain distance, and when the flexible display panel 10 is rolled up, the tensile force applied to the elastic member 15 is reduced, and the reel 11 moves rightward.
In this embodiment, the guiding slot 19 is provided on the housing 13, and two ends of the roller 11 are slidably disposed in the guiding slot 19 to limit the moving space of the roller 11, so that limited relative movement is performed between the roller 11 and the housing 13, and the flexible display panel 10 is prevented from being wrinkled due to the up-and-down swing of the roller 11 during the movement, and meanwhile, the elastic element 15 is prevented from being stretched too long to recover.
The length and width of the guide groove 19 may be set according to the diameter of the end 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 diameter of the end of the spool 11. For example, the length of the guide groove 19 may be set to be 2 times the diameter of the end of the spool 11 so that the distance by which the end of the spool 11 moves left and right is 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 so that the end of the spool 11 moves in the extending direction of the guide groove 19.
It should be noted that, when the elastic member 15 is connected to both ends of the spool 11 through the first sleeve 17 and the second sleeve 18, the length D3 of the guide groove 19 may be set to be 1.5 to 3 times, for example, 2 times, or the like, the diameter of the first sleeve 17 and the second sleeve 18, and the width D4 of the guide groove 19 may be slightly larger than the diameters of the first sleeve 17 and the second sleeve 18.
Fig. 9 is a schematic view illustrating a partial top view of still another rollable display module according to an embodiment of the present invention, and as shown in fig. 9, the elastic member 15 may include elastic cords.
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 scroll 11 as a first connection end 151, and the other end of the elastic cord is connected to the other end of the scroll 11 as a second connection end 152, so that two ends of the scroll 11 are connected to the housing 13 through one elastic cord, the stress of two ends of the scroll 11 is consistent, the problem of uneven stress of two ends of the scroll 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 optionally comprises at least one spring 20 and a flexible connecting cord 21, the spring 20 being connected to both ends of the spool 11 by means of the flexible connecting cord 21.
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, the flexible connecting rope 21 is soft and convenient for connection, and meanwhile, the direction of tension is changed by bypassing the positioning column group 14.
Fig. 10 is a schematic partial top view of another rollable display module according to an embodiment of the present invention, fig. 11 is a schematic partial top view of another rollable display module according to an embodiment of the present invention, and fig. 12 is a schematic partial top view of another rollable display module according to an embodiment of the present invention, where, as shown in fig. 10-12, at least one spring 20 is disposed symmetrically about a central axis 102 of the flexible display panel 10, where the central axis 102 is perpendicular to an axial direction of the roller 11.
As shown in fig. 10, for example, the elastic element 15 includes a spring 20, the positioning column set 14 includes two positioning columns 141, the spring 20 may be located between the two positioning columns 141, and the spring 20 is located on the central axis 102 of the flexible display panel 10, which is helpful for making the stress on two ends of the reel 11 uniform, so that the problem of uneven stress on 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 unfolded smoothly.
For example, as shown in fig. 11, the elastic element 15 includes two springs 20, the positioning column set 14 includes two positioning columns 141, and 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 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 unfolded smoothly.
For 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 two springs 20 are respectively located at two sides of the positioning column set 14, and one spring 20 may be located between two positioning columns 141, so as to be symmetrically disposed about the central axis 102 of the flexible display panel 10, so that stress directions at two ends of the reel 11 are symmetrical, and thus, a 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 unfolded smoothly.
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, which is not limited by the embodiment of the present invention.
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 disposed opposite to each other, a distance between the first end 131 and the second end 132 is variable, two ends of the spool 11 are connected to the first end 131 of the housing 13 through the elastic structure 12, the flexible display panel 10 further includes a free end 103 disposed opposite to the curled end 101, and the free end 103 is connected to the second end 132 of the housing 13.
Fig. 13 is a schematic side view of still another rollable display module according to an embodiment of the present invention, wherein, as shown in fig. 8 and 13, two ends of the roller 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. So that the distance between the first end 131 and the second end 132 becomes smaller in the curled state, 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 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, so that the flexible display panel 10 is unfolded to increase the display area.
Fig. 14 is a schematic side view of another rollable display module according to an embodiment of the present invention, as shown in fig. 14, optionally, the rollable display module according to an embodiment of the present invention further includes a moving shaft 22, a 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 roller 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 structure 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 structure 121, thereby improving the stress unevenness due to the assembly error of the reel 11; by connecting both ends of the moving shaft 22 with the second ends 132 of the housing 13 through the second elastic structures 122, when the flexible display panel 10 is unfolded, the free ends 103 of the flexible display panel 10 are stretched by the elastic force of the second elastic structures 122, and uneven stress caused by assembly errors of the moving shaft 22 is improved, so that wrinkles of the flexible display panel 10 are reduced, and the flexible display panel 10 is unfolded smoothly.
The specific structure of the first elastic structure 121 and the second elastic structure 122 may refer to the specific structure of the elastic structure 12 in the above embodiment, which is not described herein.
Fig. 15 is a schematic side view of still another rollable display module according to an embodiment of the present invention, and as shown in fig. 15, the diameter of the movable shaft 22 is smaller than the diameter of the roller 11.
Wherein, as shown in fig. 15, by setting the diameter of the moving shaft 22 smaller, the occupied space can be saved, which is beneficial to the miniaturization design of the display device; by providing the reel 11 with a larger diameter, damage to the flexible display panel 10 can be reduced and the service life can be improved when the flexible display panel 10 is wound on the reel 11.
Fig. 16 is a schematic view of a partial top view structure of still 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 connecting end 241 and a second first connecting end 242, the first connecting end 241 is connected to one end of the roller 11, and the second first connecting end 242 bypasses the first positioning column group 23 to be connected to the other end of the roller 11. The second elastic structure 122 includes a second positioning column set 25 and a second elastic element 26, where 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, and the second connection end 262 bypasses the second positioning column set 25 to be connected with the other end of the moving shaft 22, and the elastic coefficient of the second elastic element 26 is greater than that of the first elastic element 24.
As shown in fig. 14 and 16, in an unfolded state, a distance between the first end 131 and the second end 132 of the housing 13 is increased, 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 scroll 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 tensile force, so that the scroll 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, thereby saving space and helping to miniaturize the display device; moreover, the elastic coefficient of the first elastic element 24 is smaller, so that the elasticity of the first elastic element 24 is better, the tension at the two ends of the scroll 11 is balanced, 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 unfolded smoothly.
The specific structures of the first positioning column set 23 and the second positioning column set 25 may refer to the specific structures of the positioning column set 14 in the above embodiment, and the specific structures of the first elastic element 24 and the second elastic element 26 may refer to the specific structures of the elastic element 15 in the above embodiment, which are not described herein.
With continued reference to fig. 1, 6, 8, and 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 being unfolded, and an edge of the housing 13 near the side of the first gap 27 includes a chamfer.
Fig. 17 is an enlarged schematic view of a structure of a rollable display module at a first gap, as shown in fig. 17, for example, when the flexible display panel 10 is stretched or retracted through the first gap 27 during the stretching or rolling of the flexible display panel 10, 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 the present embodiment, by providing the chamfer at the edge of the side of the housing 13 close to the first gap 27, the abrasion of the flexible display panel 10 by the edge of the side of the housing 13 close to the first gap 27 can be reduced, and the flexible display panel 10 is prevented from being scratched by the housing 13.
The shape and size of the chamfer may be set according to actual requirements, so long as the abrasion of the edge of the housing 13 near the side of the first gap 27 to the flexible display panel 10 can be reduced, and those skilled in the art may set according to actual requirements.
For example, as shown in fig. 17, a 45 ° chamfer may be employed for the chamfer.
For example, fig. 18 is an enlarged schematic view of a first gap of another rollable display module according to an embodiment of the present invention, and fig. 19 is an enlarged schematic view of a first gap of another rollable display module according to an embodiment of the present invention, where the chamfer may be an arc chamfer as shown in fig. 18 and 19.
Based on the same inventive concept, the embodiment of the present invention further provides a display device, and fig. 20 is a schematic structural diagram of the display device provided by the embodiment of the present invention, and as shown in fig. 20, the display device 28 includes a rollable display module 29 according to any embodiment of the present invention, so that the display device 28 provided by the embodiment of the present invention has the technical effects of the technical solution in any embodiment, and the same or corresponding structure and term explanation as those of the embodiment are not repeated herein.
Alternatively, 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, or any electronic product with a display function, including but not limited to the following categories: television, notebook computer, desktop display, tablet computer, digital camera, smart bracelet, smart glasses, vehicle-mounted display, medical equipment, industrial control equipment, touch interactive terminal, etc., which are not particularly limited in this embodiment of the invention.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements, combinations, and substitutions can be made by those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (14)
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 includes a curled end connected to the reel;
the two ends of the scroll are connected with the shell through the elastic structure;
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;
the elastic structure further comprises a first sleeve and a second sleeve, the first sleeve is sleeved at one end of the scroll, and the second sleeve is sleeved at the other end of the scroll, so that two ends of the scroll 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 to be connected with the second sleeve.
2. The rollable display module according to claim 1, wherein,
the positioning column group comprises at least one positioning column;
along the direction perpendicular to the first plane, at least one the reference column is arranged symmetrically with respect to the 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 the plane where the flexible display panel is unfolded.
3. The rollable display module according to claim 2, wherein,
the positioning column comprises a pulley.
4. The rollable display module according to claim 1, wherein,
the shortest distance between the first connection end and the connection end point of the reel and the flexible display panel is D1, and the shortest distance between the second connection end and the connection end point of the reel and the flexible display panel is D2, wherein d1=d2.
5. The rollable display module according to claim 1, wherein,
the housing includes a guide groove having an extending direction perpendicular to an axial direction of the spool, and both ends of the spool are slidably disposed in the guide groove to move the spool in the extending direction of the guide groove.
6. The rollable display module according to claim 1, wherein,
the elastic element comprises a bungee cord.
7. The rollable display module according to claim 1, wherein,
the elastic element comprises at least one spring and a flexible connecting rope;
the spring is connected with the two ends of the scroll through the flexible connecting rope.
8. The rollable display module of claim 7, wherein the display module is configured to display a display screen,
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.
9. The rollable display module according to claim 1, wherein,
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.
10. The rollable display module according to claim 9, wherein the display module,
the rollable display module further comprises a movable shaft, and the free end is connected with the movable shaft;
the elastic structure comprises a first elastic structure and a second elastic structure, two ends of the scroll are connected with the first end of the shell through the first elastic structure, and two ends of the moving shaft are connected with the second end of the shell through the second elastic structure.
11. The rollable display module of claim 10, wherein the display module is configured to display the display screen,
the diameter of the moving shaft is smaller than the diameter of the scroll.
12. The rollable display module of claim 10, wherein the display module is configured to display the display screen,
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 first connecting end, the first connecting end is connected with one end of the scroll, and the second connecting end bypasses the first positioning column group and is connected with the other end of the scroll;
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 movable shaft, and the second connecting end bypasses the second positioning column group and is connected with the other end of the movable shaft;
wherein the elastic coefficient of the second elastic element is larger than that of the first elastic element.
13. The rollable display module according to claim 1, wherein,
a first gap is formed between the shell and the scroll, and the flexible display panel stretches out through the first gap when being unfolded;
the edge of the housing adjacent to the side of the first gap includes a chamfer.
14. A display device comprising a rollable display module according to any one of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111388366.7A CN114038322B (en) | 2021-11-22 | 2021-11-22 | Rollable display module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111388366.7A CN114038322B (en) | 2021-11-22 | 2021-11-22 | Rollable display module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114038322A CN114038322A (en) | 2022-02-11 |
| CN114038322B true CN114038322B (en) | 2023-08-04 |
Family
ID=80145070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111388366.7A Active CN114038322B (en) | 2021-11-22 | 2021-11-22 | Rollable display module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114038322B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114582242B (en) * | 2022-03-25 | 2023-11-24 | 武汉天马微电子有限公司 | Display device and driving method thereof |
| CN115359733B (en) * | 2022-08-30 | 2023-12-05 | 京东方科技集团股份有限公司 | Curved surface module loading mechanism |
| CN115512614B (en) * | 2022-09-14 | 2025-03-28 | 京东方科技集团股份有限公司 | Sliding device, display device and sliding method thereof |
| WO2024170070A1 (en) * | 2023-02-15 | 2024-08-22 | Huawei Technologies Co., Ltd. | Apparatus and method for tensioning a rollably extending display |
| CN116434669B (en) * | 2023-06-12 | 2023-10-03 | 深圳市华星光电半导体显示技术有限公司 | Display device and terminal equipment |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102902308A (en) * | 2011-09-02 | 2013-01-30 | 微软公司 | Expandable mobile device |
| CN104200753A (en) * | 2014-06-18 | 2014-12-10 | 友达光电股份有限公司 | folding display device |
| CN204576991U (en) * | 2014-12-24 | 2015-08-19 | 友达光电股份有限公司 | folding display device |
| CN105518767A (en) * | 2014-12-25 | 2016-04-20 | 深圳市柔宇科技有限公司 | Flexible display apparatus |
| CN106097896A (en) * | 2015-04-30 | 2016-11-09 | 三星电子株式会社 | Can wrap display device |
| KR20170080017A (en) * | 2015-12-31 | 2017-07-10 | 엘지디스플레이 주식회사 | Rollable display apparatus |
| WO2018120070A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳市柔宇科技有限公司 | Spool assembly, display device and mobile terminal |
| CN111583802A (en) * | 2020-05-22 | 2020-08-25 | 合肥维信诺科技有限公司 | Flexible display device |
| CN111833743A (en) * | 2020-07-02 | 2020-10-27 | 武汉华星光电半导体显示技术有限公司 | Flexible display device |
| CN111862822A (en) * | 2020-08-25 | 2020-10-30 | 京东方科技集团股份有限公司 | Flexible display device and sliding scroll method thereof |
| CN211862632U (en) * | 2020-01-03 | 2020-11-06 | 北京大学深圳医院 | Medical hand washing reminding device |
| CN113539107A (en) * | 2021-07-23 | 2021-10-22 | 上海天马微电子有限公司 | a display device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8787016B2 (en) * | 2011-07-06 | 2014-07-22 | Apple Inc. | Flexible display devices |
| KR102426694B1 (en) * | 2017-05-02 | 2022-07-29 | 삼성전자주식회사 | electronic device including flexible display |
-
2021
- 2021-11-22 CN CN202111388366.7A patent/CN114038322B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102902308A (en) * | 2011-09-02 | 2013-01-30 | 微软公司 | Expandable mobile device |
| CN104200753A (en) * | 2014-06-18 | 2014-12-10 | 友达光电股份有限公司 | folding display device |
| CN204576991U (en) * | 2014-12-24 | 2015-08-19 | 友达光电股份有限公司 | folding display device |
| CN105518767A (en) * | 2014-12-25 | 2016-04-20 | 深圳市柔宇科技有限公司 | Flexible display apparatus |
| CN106097896A (en) * | 2015-04-30 | 2016-11-09 | 三星电子株式会社 | Can wrap display device |
| KR20170080017A (en) * | 2015-12-31 | 2017-07-10 | 엘지디스플레이 주식회사 | Rollable display apparatus |
| WO2018120070A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳市柔宇科技有限公司 | Spool assembly, display device and mobile terminal |
| CN211862632U (en) * | 2020-01-03 | 2020-11-06 | 北京大学深圳医院 | Medical hand washing reminding device |
| CN111583802A (en) * | 2020-05-22 | 2020-08-25 | 合肥维信诺科技有限公司 | Flexible display device |
| CN111833743A (en) * | 2020-07-02 | 2020-10-27 | 武汉华星光电半导体显示技术有限公司 | Flexible display device |
| CN111862822A (en) * | 2020-08-25 | 2020-10-30 | 京东方科技集团股份有限公司 | Flexible display device and sliding scroll method thereof |
| CN113539107A (en) * | 2021-07-23 | 2021-10-22 | 上海天马微电子有限公司 | a display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114038322A (en) | 2022-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114038322B (en) | Rollable display module and display device | |
| EP3576385B1 (en) | Display screen assembly and mobile terminal | |
| JP7528263B2 (en) | Electronics | |
| US12216508B2 (en) | Arm structure, hinge structure including the arm structure, and electronic device including the same | |
| KR102496071B1 (en) | A rotating shaft and an electronic device having the rotating shaft | |
| CN108076171B (en) | Folding assembly and mobile terminal | |
| US9013864B2 (en) | Support for a flexible display | |
| CN107547700B (en) | mobile terminal | |
| US8971032B2 (en) | Support for a flexible display | |
| CN110047384A (en) | Flexible display apparatus | |
| EP2728434B1 (en) | Support for a flexible display | |
| WO2021129641A1 (en) | Flexible screen assembly and electronic device | |
| US11856722B2 (en) | Foldable display device | |
| CN113888969A (en) | Flexible display device and electronic equipment | |
| KR20120117140A (en) | Portable communication device having flexible display | |
| KR20160129668A (en) | Electronic apparatus having rollable display device | |
| KR20160090976A (en) | Display device | |
| KR20170000309A (en) | Foldable display apparatus changing curvature of display | |
| US11687119B2 (en) | Flexible screen display device | |
| CN114023199B (en) | Rollable display device | |
| CN114076144A (en) | Rotating shaft mechanism, bendable supporting mechanism and flexible display device | |
| CN103687361B (en) | Portable electronic device | |
| CN114241913A (en) | Bendable display module and display device | |
| CN110809794A (en) | Folding mechanism and terminal | |
| CN114550592B (en) | display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |