CN113781917B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN113781917B CN113781917B CN202111093903.5A CN202111093903A CN113781917B CN 113781917 B CN113781917 B CN 113781917B CN 202111093903 A CN202111093903 A CN 202111093903A CN 113781917 B CN113781917 B CN 113781917B
- Authority
- CN
- China
- Prior art keywords
- support
- supporting
- display panel
- flexible screen
- extension
- 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
Images
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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
Abstract
The invention provides a display panel and a display device, which comprise a flexible screen, an adhesive layer, a plurality of first supporting pieces and a plurality of second supporting pieces which are sequentially stacked, wherein the plurality of first supporting pieces are arranged at intervals along the extending direction of the flexible screen and are in one-to-one correspondence with the second supporting pieces; in the unfolding state of the flexible screen, the second supporting piece is obliquely arranged towards a preset direction relative to the first supporting piece; the first supporting piece is connected with the bonding layer, and the second supporting pieces are rotatably connected; the second support part is provided with an extension part, the extension part penetrates through the first support part to be connected with the bonding layer, a concave part is arranged on the extension part, and the centers of the concave part and the extension part are arranged in a staggered mode; in the curling state of the flexible screen, the bonding layer extrudes the concave part and drives the extension part to rotate, and the second support part rotates and has the same extension direction with the first support part. The display panel and the display device provided by the invention can realize the curling of the flexible display screen, ensure the effective support of the flexible display screen and improve the touch experience of a user.
Description
Technical Field
The invention relates to the technical field of display panels, in particular to a display panel and a display device.
Background
The flexible display screen has special product forms such as folding, large-angle bending, curling and the like, so that the flexible display screen is increasingly applied. For example, the display screen of the curling type can be large in display area when the display screen is unfolded, and the whole device is small in size and convenient to carry when the display screen is curled, so that the display screen is widely concerned.
In the related art, the curling display screen comprises a display surface and a mounting surface which are oppositely arranged, and a hollowed metal plate is arranged on one side of the mounting surface so as to support the display screen when the display screen is in an unfolded state.
However, the hollow metal plate has a weak supporting force for the display screen, which results in poor touch experience of the user.
Disclosure of Invention
In view of the above problems, embodiments of the present invention provide a display panel and a display device, which can realize the curling of a flexible display screen and provide effective support when the flexible display screen is unfolded, so as to improve the touch experience of a user.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
a first aspect of an embodiment of the present invention provides a display panel, including: the flexible screen comprises a display surface and a mounting surface which are oppositely arranged, the bonding layer is positioned on the mounting surface, and the first supporting pieces are arranged at intervals along the extending direction of the flexible screen and are connected with the mounting surface through the bonding layer;
the plurality of first supporting pieces and the plurality of second supporting pieces are arranged in a one-to-one correspondence mode, and in the unfolded state of the flexible screen, the second supporting pieces are obliquely arranged towards a preset direction relative to the first supporting pieces; the second supporting piece is positioned on one side of the first supporting piece, which is far away from the flexible screen, and the second supporting piece is rotatably connected with the first supporting piece;
the second support part is provided with an extension part, the extension part penetrates through the first support part to be connected with the bonding layer, a concave part is arranged on the extension part, and the centers of the concave part and the extension part are arranged in a staggered mode;
in the curling state of the flexible screen, the concave part is extruded through the bonding layer, so that the extension part is driven to rotate, the second support part is driven to rotate, and the extension direction of the second support part is the same as that of the first support part.
According to the display panel provided by the embodiment of the invention, the supporting piece of the flexible screen is set to be a double-layer structure, the supporting piece comprises a plurality of first supporting pieces and a plurality of second supporting pieces which are arranged at intervals along the extending direction of the flexible screen, and the plurality of first supporting pieces and the plurality of second supporting pieces are arranged in a one-to-one correspondence manner. The second supporting piece is located on one side, away from the flexible screen, of the first supporting piece, the first supporting piece is connected with the flexible screen through the bonding layer, and the second supporting piece is connected with the first supporting piece in a rotating mode. A supporting gap is formed between every two adjacent first supporting pieces, and the flexible screen cannot be supported by the first supporting pieces at the supporting gap. When the flexible screen is in the unfolding state, the second supporting piece is located at the supporting gap, and the second supporting piece plays a supporting role for the flexible screen at the supporting gap, so that the flexible screen is commonly and well supported by the first supporting piece and the second supporting piece, and the touch experience of a user is improved. When the flexible screen is in a curled state, the second supporting piece rotates around the first supporting piece, and the second supporting piece opposite to the first supporting piece is close to the first supporting piece, so that the supporting gap reappears, and the flexible screen is not affected by the second supporting piece at the supporting gap, so that the stress at the supporting gap is released, and curling is realized.
In a possible implementation manner, the extending portion has a central line in the same extending direction as the first support, and the concave portion is located on one side of the central line facing the preset direction;
the cross section of the extension part comprises a first quadrant region, a second quadrant region, a third quadrant region and a fourth quadrant region; the depressions are located only in the first quadrant and/or the third quadrant, or the depressions are located only in the second quadrant and/or the fourth quadrant.
Thus, the adhesive layer deforms and enters the concave part, and acts on the extending part to generate torque so as to enable the extending part to rotate along the torque direction, and the extending directions of the first supporting piece and the second supporting piece are the same.
In a possible implementation manner, the first support is provided with a through hole, and the extension portion penetrates through the through hole and is connected with the bonding layer.
Thus, the extension part can be connected with the bonding layer through the through hole, and the through hole has a certain limiting effect on the extension part.
In one possible implementation, there is a gap between the outer wall surface of the extension portion located within the through hole and the inner wall surface of the through hole.
Thus, when the second support member rotates around the first support member, the rotational resistance of the first support member to the second support member can be reduced.
In one possible implementation manner, the through hole is positioned at the middle section of the first support piece, and the extension part is positioned at the middle section of the second support piece;
therefore, the distance difference between the two ends of the extension direction of the second support piece and the extension part is not large, and the extension part is balanced under the action of the gravity of the two ends of the second support piece.
In one possible implementation, the through hole is located at an end of the first support, and the extension portion is located at an end of the second support.
Therefore, the preset inclination angle of the second support part and the first support part can be set to be smaller, and the risk of peeling caused by the fact that the rotation angle between the extension part and the bonding layer is too large is reduced.
In one possible implementation mode, the extension part extends into the adhesive layer from the surface of the side, far away from the mounting surface, of the adhesive layer and is connected with the adhesive layer;
the length of the extension portion within the adhesive layer is less than the thickness of the adhesive layer and at least part of the adhesive layer is between the end of the extension portion and the mounting surface of the flexible screen.
Therefore, the extension part can be prevented from protruding out of the bonding layer and directly contacting with the flexible screen in a rigid mode, and influences on the flexible screen can be avoided.
In a possible implementation, the length of the extension located within the adhesive layer is equal to or less than 2/3 of the thickness of the adhesive layer.
Therefore, the bonding layer can play a good role in buffering between the extension part and the flexible screen.
In a possible implementation manner, the inclination angle of the second support relative to the first support is θ, the distance between two adjacent first supports is L1, and the width of the second support is L2;
wherein L1= L2 COS θ.
In this way, the second support member can provide a better support for the portion of the flexible screen at the support gap. In addition, the risk of peeling of the extension portion from the adhesive layer is reduced.
A second aspect of embodiments of the present invention provides a display device including the display panel in the first aspect described above.
According to the display device provided by the embodiment of the invention, the supporting piece of the flexible screen is set to be a double-layer structure, the supporting piece comprises a plurality of first supporting pieces and a plurality of second supporting pieces which are arranged at intervals along the extending direction of the flexible screen, and the plurality of first supporting pieces and the plurality of second supporting pieces are arranged in a one-to-one correspondence manner. The second supporting piece is located on one side, away from the flexible screen, of the first supporting piece, the first supporting piece is connected with the flexible screen through the bonding layer, and the second supporting piece is connected with the first supporting piece in a rotating mode. A supporting gap is formed between every two adjacent first supporting pieces, and the flexible screen cannot be supported by the first supporting pieces at the supporting gap. When the flexible screen is in the unfolded state, the second supporting piece is located at the supporting gap, and the second supporting piece plays a supporting role in the supporting gap for the flexible screen, so that the flexible screen is supported well by the first supporting piece and the second supporting piece, and the touch experience of a user is improved. When the flexible screen is in a curled state, the second supporting piece rotates around the first supporting piece, and the second supporting piece opposite to the first supporting piece is close to the first supporting piece, so that the supporting gap reappears, the flexible screen is not affected by the second supporting piece at the supporting gap, the stress at the supporting gap is released, and curling is realized.
The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 2 is a schematic partial cross-sectional structural diagram of a display panel according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional structural view of a first support member and a second support member according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a first supporting member and a second supporting member when a display panel according to an embodiment of the present invention is unfolded;
fig. 5a is an enlarged view of a portion of the first supporting member and the second supporting member when the display panel is unfolded according to the embodiment of the present invention;
FIG. 5b is an enlarged view of a portion of the first support and the second support when the display panel is unfolded according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a first supporting member and a second supporting member when a display panel is curled according to an embodiment of the present invention;
FIG. 7 is a cross-sectional structural view of an extension according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a cross section of another extension portion according to an embodiment of the present invention.
Description of reference numerals:
100-a display device;
10-a display panel;
11-a flexible screen;
111-a display surface;
112-a mounting surface;
12-a first support;
121-support gap;
13-a second support;
131-an extension;
131 a-first quadrant region;
131 b-second quadrant region;
131 c-third quadrant region;
131 d-fourth quadrant region;
132-a recess;
14-an adhesive layer;
20-a blocking mechanism;
30-a reel mechanism.
Detailed Description
When the flexible screen is applied to the curled display screen, the flexible screen needs to be set to be thin so as to reduce the rigidity of the display screen, reduce the stress generated by the display screen during curling and avoid the failure of the display screen. Because the flexible screen is soft and thin, a supporting plate needs to be arranged on the backlight surface of the flexible screen to support the flexible screen in an expansion state, and wrinkles after the flexible screen is expanded or depressions when a user touches the flexible screen body are avoided.
During the rolling of the flexible screen, the support plate needs to be rolled along with it. On the one hand, the support plate needs to have sufficient strength to support the flexible screen, and on the other hand, the support plate needs to be sufficiently flexible to meet the curl. For example, the supporting plate may be a thin hollow metal plate, and holes are formed in the thin metal supporting plate to reduce the rigidity of the metal supporting plate, so as to meet the requirement of curling. However, the metal support plate is thin, and after the hole is formed, although the requirement of curling can be met, the metal support plate can be reduced in deformation resistance after the hole is formed, so that the curled supporting piece cannot recover to a flat state, and the flexible screen is not stretched and fails. In addition, after the metal supporting plate is perforated, the strength of the metal supporting plate is reduced, the supporting capacity is low, the supporting capacity of the flexible screen after the metal supporting plate is unfolded is insufficient, the situation that the flexible screen is sunken still can occur when a user touches the flexible screen, and therefore the touch experience of the user of the display device is poor.
In view of the above technical problems, embodiments of the present invention provide a display panel and a display device, in which a support member of a flexible screen is set to be a double-layer structure, the support member includes a plurality of first support members and a plurality of second support members that are arranged at intervals along an extending direction of the flexible screen, and the plurality of first support members and the plurality of second support members are arranged in a one-to-one correspondence manner. The second supporting piece is located on one side, away from the flexible screen, of the first supporting piece, the first supporting piece is connected with the flexible screen through the bonding layer, and the second supporting piece is connected with the first supporting piece in a rotating mode. A supporting gap is formed between every two adjacent first supporting pieces, and the flexible screen cannot be supported by the first supporting pieces at the supporting gap. When the flexible screen is in the unfolded state, the second supporting piece is located at the supporting gap, and the second supporting piece plays a supporting role in the supporting gap for the flexible screen, so that the flexible screen is supported well by the first supporting piece and the second supporting piece, and the touch experience of a user is improved. When the flexible screen is in a curled state, the second supporting piece rotates around the first supporting piece, and the second supporting piece opposite to the first supporting piece is close to the first supporting piece, so that the supporting gap reappears, and the flexible screen is not affected by the second supporting piece at the supporting gap, so that the stress at the supporting gap is released, and curling is realized.
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
In the description of the embodiments of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, indirectly connected through intervening media, internally connected to two elements, or in interacting relation with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention. Fig. 2 is a schematic partial cross-sectional structural diagram of a display panel according to an embodiment of the present invention. Fig. 3 is a schematic cross-sectional structural diagram of a first support and a second support according to an embodiment of the present invention. Fig. 4 is a schematic structural diagram of a first supporting member and a second supporting member when a display panel provided by an embodiment of the invention is unfolded. Fig. 5a is an enlarged view of a portion of the first supporting member and the second supporting member when the display panel is unfolded according to an embodiment of the present invention. Fig. 5b is an enlarged view of a portion of the first supporting member and the second supporting member when the display panel is unfolded according to another embodiment of the present invention. Fig. 6 is a schematic structural diagram of a first supporting member and a second supporting member when a display panel is curled according to an embodiment of the present invention. Fig. 7 is a schematic structural diagram of a cross section of an extension portion according to an embodiment of the present invention. Fig. 8 is a schematic structural diagram of another cross section of an extension portion according to an embodiment of the present invention.
The embodiment of the invention provides a display device which can be a mobile or fixed terminal with a display panel, such as electronic paper, a mobile phone, a tablet personal computer, a television, a display, a notebook computer, a digital photo frame, a super personal computer, a navigator and the like.
As shown in fig. 1, the display device 100 may include a rollable display panel 10 and a reel mechanism 30, and one end of the display panel 10 may be connected to the reel mechanism 30 along an extending direction of the display panel 10, and the display panel 10 may be rollably received in the reel mechanism 30 to reduce a volume occupied by the display panel 10. When a pulling force is applied to the other end of the display panel 10, the display panel 10 can be unfolded along the scrolling mechanism 30 to form a larger visible area, and the more the display panel 10 is unfolded, the larger the visible area is, and the display screen can be displayed in real time when the display device 100 is operated. The arrow B in fig. 1 shows the curling direction of the display panel 10, and the arrow a shows the unrolling direction of the display panel 10.
As shown in fig. 1, the other end of the display panel 10 facing away from the scrolling mechanism 30 may be connected to the blocking mechanism 20, and the blocking mechanism 20 is used to prevent the end of the display panel 10 connected to the blocking mechanism 20 from being also received in the scrolling mechanism 30. When it is necessary to unwind the display panel 10, the display panel 10 may be pulled out from the reel mechanism 30 by applying a force to the barrier mechanism 20 in a direction away from the reel mechanism 30 so that the display panel 10 is extended from the reel mechanism 30 to be unwound, and the force may be stopped after the barrier mechanism 20 reaches a predetermined position. The "predetermined position" may be determined according to the user's requirement, for example, the distance between the predetermined position and the scroll mechanism 30 may be 40%, 60%, or 80% of the extension length of the display panel 10 in the unwinding direction, and the present embodiment does not limit the distance between the predetermined position and the scroll mechanism 30.
In some embodiments, the other end of the display panel 10 away from the scrolling mechanism 30 may be further connected to another scrolling mechanism 30, which is equivalent to connecting the scrolling mechanism 30 to each of the two ends of the display panel 10, so that the display panel 10 can be rolled by the two scrolling mechanisms 30, and the display panel 10 can be rolled at each of the two ends of the display panel 10.
The embodiment of the present invention further provides a display panel 10, and the display panel 10 may be applied to the display device 100 in the above embodiment. As shown in fig. 2 and 3, the display panel 10 includes a flexible screen 11, a plurality of first support members 12, a plurality of second support members 13, and an adhesive layer 14. The flexible screen 11 includes a display surface 111 and a mounting surface 112 that are arranged opposite to each other, and the display surface 111 of the flexible screen 11 is a surface on which a screen is displayed or a surface on which a user performs touch operation. The mounting surface 112 is the surface opposite to the display surface 111, and the adhesive layer 14 is located on the mounting surface 112. One side of the mounting surface 112 is sequentially covered with the adhesive layer 14, the plurality of first supporting members 12 and the plurality of second supporting members 13 in a stacked manner, and the plurality of first supporting members 12 and the plurality of second supporting members 13 are arranged in a one-to-one correspondence manner.
As shown in fig. 4, the first supports 12 are spaced apart from each other along the extending direction of the flexible panel 11 (i.e., the direction indicated by b), and are connected to the mounting surface 112 through the adhesive layer 14. In this way, the portion of the flexible screen 11 directly opposite to the first support 12 is supported by the first support 12, and a support gap 121 is formed between two adjacent first supports 12, and the portion of the flexible screen 11 at the support gap 121 is not supported by the first supports 12. A in fig. 4 shows a direction which is an extending direction of the first support 12 and the second support 13.
It should be explained that the plurality of first supporting members 12 and the plurality of second supporting members 13 are disposed in a one-to-one correspondence, which may mean that the number of the first supporting members 12 and the number of the second supporting members 13 are equal. Taking fig. 4 as an example, along the direction b, the first support 12 corresponds to the first second support 13, the second first support 12 corresponds to the second support 13, and so on.
As shown in fig. 4, in the unfolded state of the flexible screen 11, if the flexible screen 11 is not supported at the supporting gap 121, the flexible screen 11 may be recessed when touched by a user, so that the user of the display device 100 may experience a poor touch experience. Therefore, the second supporting member 13 is provided in this embodiment, the second supporting member 13 is located on a side of the first supporting member 12 away from the flexible screen 11, and the second supporting member 13 is rotatably connected to the first supporting member 12.
Specifically, the second supporting member 13 has an extending portion 131 (in fig. 2), the extending portion 131 penetrates through the first supporting member 12 and is connected to the adhesive layer 14, and after the extending portion 131 is well adhered to the adhesive layer 14, in an unfolded state, as shown in fig. 4, the second supporting member 13 is inclined towards a predetermined direction relative to the first supporting member 12, and a predetermined included angle θ is formed between the second supporting member 13 and the first supporting member 12, so that a part of the second supporting member 13 is located in the supporting gap 121, so that the flexible screen 11 is supported by the second supporting member 13 at the supporting gap 121. In this way, the flexible screen 11 may be supported by the first supporting member 12 and the second supporting member 13, so as to avoid the situation that the flexible screen 11 is sunken when the user touches the display device 100, and improve the user touch experience of the display device 100. The preset direction may be an extending direction of the flexible screen 11 or an extending direction away from the flexible screen 11. I.e. in the direction indicated by b in fig. 4, or away from b.
In addition, if the supporting gap 121 is still supported by the second supporting member 13 during the rolling process of the flexible screen 11, a large stress may be generated at the supporting gap 121 of the flexible screen 11, which may cause the flexible screen 11 to be stressed and fail during the rolling process, or cause the second supporting member 13 to be rolled and deformed and not to return to the flat state after being unfolded. Therefore, during the curling process, the second supporting member 13 needs to be moved closer to the opposite first supporting member 12, the included angle between the two is reduced, and the supporting gap 121 is again in an unsupported state, so as to realize the curling.
For example, the Adhesive layer 14 may be formed of Optically Clear Adhesive (OCA), pressure Sensitive Adhesive (PSA), or the like, so that the Adhesive layer 14 itself has a certain elastic deformation capability and the Adhesive layer 14 may be deformed when a force is applied. As shown in fig. 5a, when the flexible panel 11 is curled in the direction of arrow B, the flexible panel 11 receives an external force in the curling direction, and the adhesive layer 14 also receives an external force in the curling direction, so that the adhesive layer 14 is deformed in the curling direction. The adhesive layer 14 exerts a force on the extension portion 131 in the same direction as the curling direction, and the direction of the force exerted by the adhesive layer 14 on the extension portion 131 is shown by an arrow F in fig. 5 a.
As shown in fig. 6 and 7, the surface of the extending portion 131 of the second supporting member 13 may have a recessed portion 132, and the recessed portion 132 and the center of the extending portion 131 are disposed in a staggered manner, so as to avoid that the recessed portion 132 is located at the center of the extending portion 131 and cannot drive the extending portion 131 to rotate in a required direction under an external force. During the rolling process of the flexible screen 11, the adhesive layer 14 presses the concave portion 132 on the extending portion 131, and drives the extending portion 131 to rotate, so that the second supporting member 13 rotates towards the corresponding first supporting member 12, and the included angle between the first supporting member 12 and the second supporting member 13 is reduced, so that the extending directions of the second supporting member 13 and the first supporting member 12 are the same (as shown in fig. 6). Thereby avoiding performance impact on the display panel 10 while achieving curling. As shown in fig. 6, the second support 13 is rotated counterclockwise about the first support 12 in the direction of the arrow to reduce the included angle therebetween.
The term "misalignment" means that the recessed portion 132 is provided offset from the origin of the center of the extending portion 131 (i.e., the intersection of the X-line and the Y-line in fig. 7). For example, the recessed portion 132 is provided along the extending direction of the X line in fig. 7 so as to be offset from the origin, or is provided along the extending direction of the Y line in fig. 7 so as to be offset from the origin.
When the display panel 10 needs to be unfolded again, the blocking mechanism 20 may apply a force to the display panel 10 to unfold the display panel 10. As shown in fig. 4, at this time, after the adhesive layer 14 and the second supporting member 13 are unfolded, no external force is applied, the adhesive layer 14 and the second supporting member 13 will return to the original adhered state, and the second supporting member 13 is tilted toward the predetermined direction again with respect to the first supporting member 12 to support the supporting gap 121. Thereby achieving repeated curling and unrolling of the display panel 10.
It should be noted that the second supporting member 13 and the first supporting member 12 may be inclined in a clockwise direction or an anticlockwise direction, so as to meet different product requirements, and the inclination direction is not limited in this embodiment.
The present embodiment is described by taking an example that the second supporting member 13 is inclined in a clockwise direction relative to the first supporting member 12.
In some embodiments, as shown in fig. 3, the first support 12 may be provided with a through hole, and the extension 131 penetrates through the through hole and is connected to the adhesive layer 14. Thus, the extension 131 can be connected to the adhesive layer 14 through a through hole, and the through hole also has a certain limiting effect on the extension 131.
In order to reduce the rotational resistance of the first support member 12 to the second support member 13 when the second support member 13 rotates about the first support member 12, a gap may be provided between an outer wall surface of the extension portion 131 located in the through hole and an inner wall surface of the through hole.
As shown in fig. 5a, the through hole may be located at the middle section of the first support 12, and the extending portion 131 may be located at the middle section of the second support 13. Thus, the distance between the two ends of the second supporting member 13 in the extending direction and the extending portion 131 is not greatly different, and the extending portion 131 is relatively balanced by the self gravity of the two ends of the second supporting member 13. In addition, it is avoided that one end of the second supporting member 13 is far away from the extending portion 131, which may cause a gap to be generated between the second supporting member 13 at the end and the first supporting member 12 along the thickness direction under the action of gravity, so that the second supporting member 13 is far away from the flexible screen 11 along the thickness direction, and cannot contact with the flexible screen 11 to generate better support.
In other examples, as shown in fig. 5b, the through hole may be located at an end of the first support 12, and the extension 131 may be located at an end of the second support 13. The through hole and the extension portion 131 are located at the same end of the display panel 10 in the width direction. In this way, the preset inclination angle between the second support member 13 and the first support member 12 can be set to be smaller, the angle that the extension portion 131 needs to rotate in the curling and flattening process is smaller, and the angle that the extension portion 131 needs to rotate in the adhesive layer 14 is smaller, so that the risk of peeling caused by the excessively large rotation angle between the extension portion 131 and the adhesive layer 14 is reduced.
As shown in fig. 2, the extension 131 may extend from the surface of the adhesive layer 14 on the side away from the mounting surface 112 into the adhesive layer 14 and be connected to the adhesive layer 14. Wherein the length of the extension part 131 in the adhesive layer 14 is smaller than the thickness of the adhesive layer 14, and at least part of the adhesive layer 14 is arranged between the end part of the extension part 131 and the mounting surface 112 of the flexible screen 11. In this way, it is possible to prevent extension 131 from protruding beyond adhesive layer 14 and coming into direct rigid contact with flexible panel 11, thereby affecting flexible panel 11.
Specifically, the length of the extension 131 in the adhesive layer 14 may be equal to or less than 2/3 of the thickness of the adhesive layer 14, for example, the length of the extension 131 in the adhesive layer 14 may be equal to or less than 1/2 of the thickness of the adhesive layer 14. The ratio of the length of the extension 131 within the adhesive layer 14 to the thickness of the adhesive layer 14 may be 1/3,1/2,2/3, etc., and the application does not limit the ratio. When the length of the extending portion 131 in the adhesive layer 14 is less than or equal to 2/3 of the thickness of the adhesive layer 14, the adhesive layer 14 can provide a good buffer effect between the extending portion 131 and the flexible screen 11, and when the length of the extending portion 131 in the adhesive layer 14 is greater than 2/3 of the thickness of the adhesive layer 14, the buffer effect between the extending portion 131 and the flexible screen 11 by the adhesive layer 14 is small, which easily affects the performance of the flexible screen 11.
As shown in fig. 5a, the inclination angle of the second support 13 relative to the first support 12 is θ, the distance between two adjacent first supports 12 is L1, and the width of the second support 13 is L2, where L1= L2 × COS θ. At this time, one end of the second supporting member 13 in the width direction is just in contact with the adjacent first supporting member 12, and the other end of the second supporting member 13 in the width direction is just in contact with the corresponding first supporting member 12, so that the second supporting member 13 can generate better support for the part of the flexible screen 11 at the supporting gap 121. In addition, the inclination angle between the second support 13 and the first support 12 is small, and the rotation angle of the extension 131 is small during the rolling and unfolding processes of the flexible screen 11, so that the risk of peeling the extension 131 from the adhesive layer 14 is reduced.
When L1 is greater than L2 COS θ, the second support 13 cannot form a good support at the support gap 121 when θ is constant; if θ needs to be increased in order to support the flexible panel 11 well at the support gap 121, the risk of peeling the extension 131 from the adhesive layer 14 increases due to an excessively large angle. Further, when L1 is smaller than L2 × COS θ, the support gap 121 is too small, which may result in failure to release the crimping stress well, and the adjacent first support members 12 interfere with each other, thereby failing to achieve the crimping function well.
In some embodiments, as shown in fig. 7, when the adhesive layer 14 is deformed by a force to press the extending portion 131, the adhesive layer 14 is deformed to enter the recessed portion 132, so that a rotational pressing force formed at the recessed portion 132 is greater than pressing forces at other positions of the extending portion 131, the rotational pressing force acts on the extending portion 131 to generate a torque, so that the extending portion 131 rotates along a torque direction, and the extending portion 131 rotates to drive the second supporting member 13 to rotate, so that the extending directions between the first supporting member 12 and the second supporting member 13 are the same.
In particular, fig. 7 shows a cross section of the extension 131, the extension 131 having a midline Y in the same direction as the extension of the first support 12. In fig. 7, the cross section of the extension portion 131, which is divided by the X-ray and the Y-ray orthogonal to each other according to the quadrant of the rectangular coordinate system in the mathematical model, may be divided into a first quadrant 131a, a second quadrant 131b, a third quadrant 131c, and a fourth quadrant 131d. The recessed portion 132 is located on one side of the middle line Y facing the predetermined direction, for example, the second support 13 is inclined at an angle θ with respect to the first support 12 along the clockwise direction, and the recessed portion 132 is located only in the first quadrant region 131a and/or the third quadrant region 131 c. For example, if the curling direction of the display panel 10 is the direction of the arrow B1, and the concave portion 132 may be located in the third quadrant region 131c, the adhesive layer 14 is deformed in the curling direction (arrow B1) after being forced, and after a part of the adhesive layer 14 is pressed into the concave portion 132, the concave portion 132 is pressed by a rotating pressing force F, the rotating pressing force F generates a torque M in a counterclockwise direction, and the extending portion 131 is driven to rotate counterclockwise, so that the extending directions of the first supporting member 12 and the second supporting member 13 are the same.
In other examples, as shown in fig. 7, if the curling direction of the display panel 10 is the direction of the arrow B2, the recess 132 may be located in the first quadrant 131a. Alternatively, the recess 132 may be provided in both the first quadrant 131a and the third quadrant 131c, and thus, the curling direction of the display panel 10 may be at least one of the arrow B1 and the arrow B2. The principle is similar to that of the recess 132 located in the third quadrant region 131c, and is not described again. The present embodiment does not limit the curling direction of the display panel 10.
In some embodiments, as shown in fig. 8, the second support 13 is inclined at an angle θ in a counterclockwise direction with respect to the first support 12, and the recessed portion 132 is only located in the second quadrant region 131b and/or the fourth quadrant region 131d. The principle is similar to that when the second support 13 is inclined at an angle θ in the clockwise direction relative to the first support 12, and the description is omitted.
In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically stated otherwise.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A display panel, comprising: the flexible screen comprises a display surface and a mounting surface which are oppositely arranged, the bonding layer is positioned on the mounting surface, and the first supporting pieces are arranged at intervals along the extending direction of the flexible screen and are connected with the mounting surface through the bonding layer;
the first supporting pieces and the second supporting pieces are arranged in a one-to-one correspondence mode, and in the unfolded state of the flexible screen, the second supporting pieces incline towards a preset direction relative to the first supporting pieces; the second supporting piece is positioned on one side of the first supporting piece, which is far away from the flexible screen, and the second supporting piece is rotatably connected with the first supporting piece;
the second support part is provided with an extension part which penetrates through the first support part to be connected with the bonding layer, a concave part is arranged on the extension part, and the concave part and the center of the extension part are arranged in a staggered mode; the extension part is provided with a central line in the same extending direction as the first support part, and the concave part is positioned on one side of the central line facing to the preset direction;
in the curling state of the flexible screen, the concave part is extruded through the bonding layer, so that the extension part is driven to rotate, the second support part is driven to rotate, and the extension direction of the second support part is the same as that of the first support part.
2. The display panel of claim 1, wherein the cross-section of the extension portion comprises a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant; the concave part is only positioned in the first quadrant area and/or the third quadrant area, or the concave part is only positioned in the second quadrant area and/or the fourth quadrant area.
3. The display panel according to claim 1 or 2, wherein the first supporting member has a through hole, and the extending portion penetrates through the through hole and is connected to the adhesive layer.
4. The display panel according to claim 3, wherein a gap is provided between an outer wall surface of the extension portion located in the through hole and an inner wall surface of the through hole.
5. The display panel according to claim 4, wherein the through hole is located at a middle section of the first support, and the extending portion is located at a middle section of the second support.
6. The display panel according to claim 4, wherein the through hole is located at an end of the first support, and the extending portion is located at an end of the second support.
7. The display panel according to claim 1 or 2, wherein the extension portion extends into the adhesive layer from a surface of the adhesive layer on a side away from the mounting surface and is connected to the adhesive layer;
the length of the extension part in the bonding layer is smaller than the thickness of the bonding layer, and at least part of the bonding layer is arranged between the end part of the extension part and the mounting surface of the flexible screen.
8. The display panel according to claim 7, wherein the length of the extension portion within the adhesive layer is 2/3 or less of the thickness of the adhesive layer.
9. The display panel according to claim 1 or 2, wherein an inclination angle of the second support with respect to the first support is θ, a distance between two adjacent first supports is L1, and a width of the second support is L2;
wherein L1= L2 COS θ.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111093903.5A CN113781917B (en) | 2021-09-17 | 2021-09-17 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111093903.5A CN113781917B (en) | 2021-09-17 | 2021-09-17 | Display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113781917A CN113781917A (en) | 2021-12-10 |
| CN113781917B true CN113781917B (en) | 2023-04-07 |
Family
ID=78851912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111093903.5A Active CN113781917B (en) | 2021-09-17 | 2021-09-17 | Display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113781917B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116935751B (en) * | 2023-09-15 | 2024-01-26 | 惠科股份有限公司 | Flexible display device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666424B (en) * | 2009-09-28 | 2011-05-25 | 友达光电（苏州）有限公司 | Flat panel display and wall hanging connection structure thereof |
| KR101700347B1 (en) * | 2015-09-07 | 2017-01-31 | 성화기술산업 주식회사 | Height adjustable warning lamp mounting structure |
| CN205945842U (en) * | 2016-07-08 | 2017-02-08 | 广东欧珀移动通信有限公司 | Flexible display device and mobile terminal |
| CN206324522U (en) * | 2016-08-24 | 2017-07-14 | 开平瑞信家具配件有限公司 | A kind of Rotatable armrest component with latch fitting |
| CN209555751U (en) * | 2018-12-25 | 2019-10-29 | 河南省交科公路勘察设计有限公司 | It is built bridge convenient for the road construction of fast assembling-disassembling with interim |
| CN110397669B (en) * | 2019-07-31 | 2020-09-04 | 深圳市巴科光电科技股份有限公司 | Arc-shaped splicing lock structure of LED display screen frame |
| CN211530648U (en) * | 2020-04-13 | 2020-09-18 | 河南方元机电有限公司 | Car door wire harness protective sleeve |
| CN212774008U (en) * | 2020-04-17 | 2021-03-23 | 江苏汉生装饰工程有限公司 | Building curtain wall fixing device |
| CN111833748B (en) * | 2020-07-13 | 2022-06-07 | Oppo广东移动通信有限公司 | Flexible display device and electronic apparatus |
| CN112082059B (en) * | 2020-09-14 | 2022-03-01 | 昆山国显光电有限公司 | Supporting structural part and display device |
| CN112719358A (en) * | 2020-12-29 | 2021-04-30 | 新昌县皇骐电子科技有限公司 | Buzzer vibrating plate perforating device |
-
2021
- 2021-09-17 CN CN202111093903.5A patent/CN113781917B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113781917A (en) | 2021-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112602033A (en) | Flexible display device and manufacturing method thereof | |
| WO2021147714A1 (en) | Display module and electronic device | |
| JP3164598U (en) | Foldable electronic device | |
| US20120050075A1 (en) | Retractable device | |
| CN110580859A (en) | support substrate of rollable display screen, rollable display device and electronic apparatus | |
| CN212061687U (en) | Electronic device | |
| WO2020073380A1 (en) | Display device and protective cover plate | |
| EP4080493A1 (en) | Electronic device | |
| US20050110702A1 (en) | Collapsible display device and methods for using the same | |
| CN111064833B (en) | Folding assembly and foldable display device | |
| CN113781917B (en) | Display panel and display device | |
| CN114067678A (en) | Display device | |
| EP4024832B1 (en) | Foldable terminal | |
| CN111090361A (en) | Folding screen assembly and electronic device | |
| CN112652248B (en) | Folding display panel and folding display device | |
| CN110728913A (en) | Display device | |
| CN113534893A (en) | Folding electronic device | |
| US20220159847A1 (en) | Display device | |
| CN210378190U (en) | Support substrate of rollable display screen, rollable display device and electronic apparatus | |
| JP2024503553A (en) | Support plates, flexible display panels and electronic devices | |
| CN111768715B (en) | Flexible display module and display device | |
| WO2021012252A1 (en) | Flexible display device and terminal | |
| WO2023274114A1 (en) | Electronic device | |
| CN115842883B (en) | Folding assembly of electronic equipment and electronic equipment | |
| CN114822227A (en) | Flexible supporting plate and 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 |