CN216527826U - Folding display screen and display device - Google Patents
Folding display screen and display device Download PDFInfo
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- CN216527826U CN216527826U CN202220383997.3U CN202220383997U CN216527826U CN 216527826 U CN216527826 U CN 216527826U CN 202220383997 U CN202220383997 U CN 202220383997U CN 216527826 U CN216527826 U CN 216527826U
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Abstract
The application discloses folding display screen and display device belongs to and shows technical field. The folding display screen includes: flexible display panel and metal heat dissipation layer. The metal heat dissipation layer is connected with the back of the flexible display panel, and the part of the metal heat dissipation layer connected with the edge bending area comprises a first part and second parts located on two sides of the first part. The width of the first portion is larger than the width of the second portion in a direction perpendicular to the folding line of the flexible display panel. Therefore, even if the deformation amount generated by the first part is different from that generated by the second part, a gentle deformation bulge is only displayed on one side of the first part close to the flexible display panel after the folding display screen is subjected to the same bending stress in the folding process. And the acting force of the gentle deformation bulge on the flexible display panel is small, so that the probability of the bad phenomenon of the impression of the flexible display panel can be effectively reduced.
Description
Technical Field
The application relates to the technical field of display, in particular to a folding display screen and a display device.
Background
With the development of display technology, more and more display devices are equipped with foldable display screens. The display device provided with the folding display screen can realize the switching of the physical size of the display device, and greatly improves the use experience of users.
In the related art, the folding display generally includes: the flexible display panel is located on the metal heat dissipation layer on the back face of the flexible display panel. The flexible display panel is provided with a folding area, and the part of the metal heat dissipation layer, which is connected with the folding area of the flexible display panel, is provided with a plurality of strip-shaped grooves.
However, after the foldable display screen is in a folded state, a protrusion is formed at a position of each strip-shaped groove in the metal heat dissipation layer, and the protrusions exert an acting force on the flexible display panel, so that the flexible display panel is prone to generate a mark.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a folding display screen and a display device. The problem that a flexible display panel in the prior art is easy to generate a poor phenomenon of mark can be solved, and the technical scheme is as follows:
in one aspect, a foldable display screen is provided, the foldable display screen comprising:
the flexible display panel and the metal heat dissipation layer;
the flexible display panel has a folding area, the folding area including: the central bending area and the edge bending areas are positioned on two sides of the central bending area;
the metal heat dissipation layer with flexible display panel's back connection, the metal heat dissipation layer is in orthographic projection on the flexible display panel is located outside the central bending region, and with there is overlap area in the marginal bending region, in the metal heat dissipation layer with the part that flexible display panel's marginal bending region is connected includes: a first portion and second portions located on both sides of the first portion;
wherein the first portion has a thickness less than a thickness of the second portion, and a width greater than a width of the second portion in a direction perpendicular to a fold line of the flexible display panel.
Optionally, in a direction perpendicular to the folding line of the flexible display panel, the width of the first portion is greater than the sum of the widths of the second portions located on both sides of the first portion.
Optionally, the number of the first portions in each of the edge bending regions is one.
Optionally, a portion of the metal heat dissipation layer connected to the edge bending region of the flexible display panel further includes: a third portion located between the first portion and each of the second portions;
wherein the thickness of the third portion gradually decreases in a direction approaching the second portion to the first portion.
Optionally, one surface of the third portion facing away from the flexible display panel is an arc-shaped concave surface.
Optionally, one surface of the first portion facing away from the flexible display panel is a plane, and the plane is tangent to the arc-shaped concave surface.
Optionally, the foldable display screen further includes: the metal heat dissipation layer is bonded with the back face of the flexible display panel through the bonding layer, and the orthographic projection of the bonding layer on the flexible display panel is not overlapped with the orthographic projection of the first part on the flexible display panel.
Optionally, there is an overlapping region between an orthographic projection of the adhesive layer on the flexible display panel and an orthographic projection of the second portion on the flexible display panel.
Optionally, the foldable display screen further includes: the cotton layer of buffering bubble, the cotton layer of buffering bubble with the metal heat dissipation layer deviates from flexible display panel's one side is connected, just the cotton layer of buffering bubble is in orthographic projection on the flexible display panel is located outside the folding district.
Optionally, the flexible display panel further has planar areas located on both sides of the folding area, and a thickness of a portion of the metal heat dissipation layer connected to the planar area of the flexible display panel is the same as a thickness of the second portion.
In another aspect, there is provided a display device including:
the foldable display screen comprises a power supply assembly and a foldable display screen, wherein the power supply assembly is used for supplying power to the foldable display screen, and the foldable display screen is any one of the foldable display screens.
The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:
a folding display screen, comprising: flexible display panel and metal heat dissipation layer. The metal heat dissipation layer is connected with the back of the flexible display panel, and the part of the metal heat dissipation layer, which is connected with the edge bending area of the flexible display panel, comprises a first part and second parts located on two sides of the first part. The width of the first portion is larger than the width of the second portion in a direction perpendicular to the folding line of the flexible display panel. Therefore, even if the deformation amount generated by the first part in the metal heat dissipation layer is different from the deformation amount generated by the second part after the same bending stress is applied in the folding process of the folding display screen, only one gentle deformation bulge is displayed on one side of the first part close to the flexible display panel. And the acting force of the gentle deformation bulge on the flexible display panel is small, so that the probability of the bad phenomenon of impression of the flexible display panel can be effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a portion of a folded display panel, where a metal heat dissipation layer is connected to an edge bending region of a flexible display panel, provided in the related art;
FIG. 2 is a bottom view of a foldable display screen provided in accordance with an embodiment of the present application;
FIG. 3 is a cross-sectional view of the folded display screen shown in FIG. 2 at A-A';
FIG. 4 is a schematic diagram of a partial film structure of a folding area of a foldable display screen according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a film structure of another foldable display screen provided in an embodiment of the present application;
FIG. 6 is a schematic diagram of a film structure of another foldable display screen provided in an embodiment of the present application;
FIG. 7 is a schematic diagram of a film structure of a foldable display screen according to an embodiment of the present disclosure;
fig. 8 is a folding effect diagram of a folding display screen according to an embodiment of the present application.
With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
In the related art, the folding display screen generally includes: the flexible display panel is located on the metal heat dissipation layer on the back face of the flexible display panel. The flexible display panel is provided with a folding area and plane areas positioned on two sides of the folding area. The part of the flexible display panel in the folding area can be folded, after the flexible display panel is folded, the part of the flexible display panel in the folding area can be in a water drop shape, and the parts of the flexible display panel in the two plane areas can be attached together. In general, the flexible display panel located in the folding region may include: a central bending region and edge bending regions positioned at two sides of the central bending region. In order to facilitate the folding of the folding display screen, the part connected with the central bending area of the flexible display panel in the metal heat dissipation layer needs to be removed, and a plurality of bar-shaped grooves need to be arranged in the part connected with the edge bending area of the metal heat dissipation layer and the flexible display panel, namely, a plurality of bar-shaped grooves can be formed through an etching process.
For example, referring to fig. 1, fig. 1 is a schematic structural diagram of a portion of a foldable display panel, where a metal heat dissipation layer is connected to an edge bending region of a flexible display panel, provided in the related art. The thickness of the portion of the metal heat dissipation layer 10 connected to the edge bending region of the flexible display panel is different at each position, for example, the thickness of the metal heat dissipation layer 10 at the position where the bar-shaped groove 10a is provided is smaller, and the thickness of the metal heat dissipation layer 10 at the position where the bar-shaped groove 10a is not provided is larger. In addition, in order to ensure the flexibility of the portion of the metal heat dissipation layer 10 connected to the edge bending region of the flexible display panel, it is necessary to ensure that the number of the bar-shaped grooves 10a in the metal heat dissipation layer 10 is large.
In this way, during the folding of the folding display panel, the thickness of the portion of the metal heat dissipation layer 10 connected to the edge bending region of the flexible display panel is different at each position. Therefore, after the same bending stress is applied during the folding process, the metal heat dissipation layer 10 has different deformation amounts at portions connected to the edge bending regions of the flexible display panel. The amount of deformation is large at the position where the bar-shaped groove 10a is provided in the metal heat dissipation layer 10, and is small at the position where the bar-shaped groove 10a is not provided in the metal heat dissipation layer 10. Therefore, a plurality of small protrusions a arranged in series are easily formed on one side of the metal heat dissipation layer 10 close to the flexible display panel (not shown in the figure), and a certain acting force is applied to the flexible display panel by the small protrusions a, thereby causing a bad phenomenon that a plurality of marks are easily generated on the flexible display panel.
Referring to fig. 2 and 3, fig. 2 is a bottom view of a foldable display screen provided in an embodiment of the present application, and fig. 3 is a cross-sectional view of the foldable display screen shown in fig. 2 at a-a'. The folding display 000 may include: a flexible display panel 100 and a metal heat dissipation layer 200.
The flexible display panel 100 in the folding display screen 000 may have a folding area 101, which may include: a central inflection region 1011, and edge inflection regions 1012 on opposite sides of the central inflection region 1011.
The metal heat dissipation layer 200 in the foldable display screen 000 may be connected to the back surface of the flexible display panel 100, where the back surface of the flexible display panel 100 is the surface opposite to the display surface of the flexible display panel 100.
The orthographic projection of the metal heat dissipation layer 200 on the flexible display panel 100 may be located outside the central bending region 1011 in the folding region 101 and have an overlapping region with the edge bending region 1012 in the flexible display panel 100. That is, the portion of the metal heat dissipation layer 200 located in the central bending region 1011 needs to be removed completely. In this way, the portion of the foldable display screen 000 located within the central bending region 1011 is more flexible, so that the portion of the foldable display screen 000 located within the central bending region 1011 can be folded.
Referring to fig. 4, fig. 4 is a schematic diagram illustrating a partial film structure of a folding area of a foldable display screen according to an embodiment of the present application. The portion of the metal heat dissipation layer 200 connected to the edge bending region 1012 of the flexible display panel 100 may include: a first portion 201, and second portions 202 located on both sides of the first portion 201. Wherein, the thickness of the first portion 201 of the metal heat dissipation layer 200 located in each edge bending region 1012 may be smaller than the thickness of the second portion 202 of the metal heat dissipation layer 200 located in each edge bending region 1012. The folding line L of the flexible display panel 100 is in a direction parallel to the Y direction in the figure, and the width of this first portion 201 may be greater than the width of the second portions 202 located at both sides of the first portion 201 in a direction perpendicular to the folding line L of the flexible display panel 100, i.e., in the X direction in the figure. Thus, one side of the metal heat dissipation layer 200 facing away from the flexible display panel may have a groove structure composed of two second portions 202 and a first portion 201 therebetween, and the distribution width of the groove structure in the edge bending region 1012 is larger, so that the flexibility of the portion of the foldable display screen 000 located in the edge bending region 1012 is better, and further, the portion of the foldable display screen 000 located in the edge bending region 1012 can be bent more easily.
In the present application, since the width of the first portion 201 is greater than the width of the second portion 202 in the folding direction perpendicular to the flexible display panel 100. Therefore, even if the deformation amount generated by the first portion 201 of the metal heat dissipation layer 200 is different from the deformation amount generated by the second portion 202, a gentle deformation protrusion is only displayed on the side of the first portion 201 close to the flexible display panel 100 after the same bending stress is applied during the folding process of the foldable display panel 000. And the acting force of the gentle deformation bulge on the flexible display panel 100 is smaller, so that the probability of the bad phenomenon of impression of the flexible display panel 100 can be effectively reduced.
It should be noted that the edge bending regions 1012 of the folding region 101 in the flexible display panel 100, which are located on both sides of the central bending region 1011, may be symmetrical with respect to the folding line L of the flexible display panel 100, that is, the two first portions 201 connected to the two edge bending regions 1012 are also symmetrical with respect to the folding line L of the flexible display panel 100, and the two first portions 201 have the same structure. Therefore, in the embodiment of the present application, the structural composition and principle of the edge bending region 1012 on the other side of the central bending region 1011 can refer to the above description of the edge bending region 1012 on one side of the central bending region 1011, which is not described herein again.
It should be noted that the thickness of the first portion 201 of the metal heat dissipation layer 200 connected to each edge bending region 1012 of the flexible display panel is the same at each position, and the thickness of the second portion 202 of the metal heat dissipation layer 200 connected to each edge bending region 1012 of the flexible display panel is also the same at each position.
To sum up, the embodiment of the present application provides a folding display screen, include: flexible display panel and metal heat dissipation layer. The metal heat dissipation layer is connected with the back of the flexible display panel, and the part of the metal heat dissipation layer, which is connected with the edge bending area of the flexible display panel, comprises a first part and second parts located on two sides of the first part. The width of the first portion is larger than the width of the second portion in a direction perpendicular to the folding line of the flexible display panel. Therefore, even if the deformation amount generated by the first part in the metal heat dissipation layer is different from the deformation amount generated by the second part after the same bending stress is applied in the folding process of the folding display screen, only one gentle deformation bulge is displayed on one side of the first part close to the flexible display panel. And the acting force of the gentle deformation bulge on the flexible display panel is small, so that the probability of the bad phenomenon of impression of the flexible display panel can be effectively reduced.
Alternatively, the width of the first portion 201 of the portion of the metal heat dissipation layer 200 connected to the edge bending region 1012 of the flexible display panel 100 may be greater than the sum of the widths of the second portions 202 located at both sides of the first portion 201 in a direction perpendicular to the folding line L of the flexible display panel 100 in the folding display 000. In this case, the sum of the widths of all the first portions 201 in the portion of the metal heat dissipation layer 200 connected to the edge bending region 1012 of the flexible display panel 100 is greater than the sum of the widths of all the second portions 202. In this way, the distribution width of the first portion 201 in the portion of the metal heat dissipation layer 200 connected to the edge bending region 1012 of the flexible display panel 100 is large. Therefore, even if a certain amount of deformation is generated in the first portion 201 of the metal heat dissipation layer 200, a more gradually deformed protrusion is only present on the side of the first portion 201 close to the flexible display panel 100. And the acting force of the more gradual deformation bulge on the flexible display panel 100 is smaller, so that the probability of the bad phenomenon of impression of the flexible display panel 100 can be further effectively reduced. In addition, the flexibility of the portion of the metal heat dissipation layer 200 located in the edge bending region 1012 can be further improved.
In the embodiment of the present application, please refer to fig. 5, and fig. 5 is a schematic diagram of a film structure of another foldable display screen provided in the embodiment of the present application. The number of the first portions 201 in each of the edge bending regions 1012 in the metal heat dissipation layer 200 in the foldable display panel 000 may be one. In other possible implementations, there may be a plurality of first portions 201 in the metal heat dissipation layer 200 connected to the edge bending region 1012 of the flexible display panel 100. For example, the number of the first portions 201 may be two, and this is not specifically limited in this embodiment of the application. When the number of the first portions 201 in the portion of the metal heat dissipation layer 200 connected to the edge bending region 1012 of the flexible display panel 100 is one, if the display panel 000 is folded, it can be ensured that the first portions 201 connected to the edge bending region 1012 only present a gentle deformation protrusion, and the probability of the flexible display panel 100 having an impression is further reduced.
Optionally, as shown in fig. 5, the portion of the metal heat dissipation layer 200 in the foldable display screen 000, which is connected to the edge bending region 1012 of the flexible display panel 100, may further include: a third portion 203 located between the first portion 201 and each second portion 202. Wherein, the thickness of the third portion 203 of the metal heat dissipation layer 200 in the portion connected to the edge bending region 1012 of the flexible display panel 100 is gradually reduced in the direction approaching the second portion 202 to the first portion 201. In this case, in each edge fold region 1012, the first portion 201 and the second portion 202 are connected by the third portion 203, and the thickness of the third portion 203 gradually decreases in a direction approaching the second portion 202 to the first portion 201. In this way, in the process of bending the edge bending region 1012, the stress concentration at the joint between the second portion 202 and the third portion 203 and at the joint between the first portion 201 and the third portion 203 can be effectively reduced by the third portion 203, so that a large amount of deformation can be prevented from occurring at the two joints.
In the embodiment of the present application, a side of the metal heat dissipation layer 200 facing away from the flexible display panel 100, of the portion connected to the edge bending region 1012 of the flexible display panel 100, of the first portion 201 and the third portion 203 between each second portion 202, may be an arc-shaped concave surface B1. In this case, a side of the metal heat dissipation layer 200 facing away from the flexible display panel 100, which is the third portion 203 of the portion connected to the edge bending region 1012 of the flexible display panel 100, is an arc-shaped concave surface B1. Therefore, by the third portion 203 having the arc-shaped concave surface B1, the stress concentration phenomenon occurring at the connection between the second portion 202 and the third portion 203 and at the connection between the first portion 201 and the third portion 203 during the bending of the flexible display panel 100 can be further effectively reduced.
Optionally, a side of the first portion 201 of the portion of the metal heat dissipation layer 200 connected to the edge bending region 1012 of the flexible display panel 100 facing away from the flexible display panel 100 in the foldable display screen 000 may be a plane C1, and this plane C1 may be tangent to an arc-shaped concave surface B1 of a side of the third portion 203 of the portion of the metal heat dissipation layer 200 connected to the edge bending region 1012 of the flexible display panel 100 facing away from the flexible display panel 100. In this case, the plane C1 of the metal heat dissipation layer 200 facing away from the flexible display panel 100 in the first portion 201 of the portion connected to the edge bending region 1012 of the flexible display panel 100 is tangent to the arc-shaped concave surface B1 of the third portion 203 facing away from the flexible display panel 100. Therefore, the third portion 203 of the metal heat dissipation layer 200 can be smoothly connected with the first portion 201, so that the connection between the third portion 203 and the first portion 201 is stressed more uniformly during the bending process of the flexible display panel 100.
In the embodiment of the present application, please refer to fig. 6, and fig. 6 is a schematic diagram of a film structure of another foldable display screen provided in the embodiment of the present application. The folding display screen 000 may further include: the adhesive layer 300, the metal heat dissipation layer 200 and the back surface of the flexible display panel 100 may be adhered by the adhesive layer 300. As an example, as shown in fig. 8 below, the flexible display panel 100 in the folding display screen 000 may also have planar regions 102 on both sides of the folding region 101. The adhesive layer 300 on the back surface of the flexible display panel 100 is adhered to at least a portion of the metal heat dissipation layer 200 connected to the planar area 102 of the flexible display panel 100. Here, the metal heat dissipation layer 200 may be a thin film structure made of metal materials such as metal aluminum, metal silver, metal copper, or alloy, and the adhesive layer 300 may be an optical adhesive layer, for example, an adhesive agent with characteristics of colorless transparency, good thermal conductivity, high adhesive strength, and small curing shrinkage. Thus, when the flexible display panel 100 normally works, the heat generated by the flexible display panel 100 can be dissipated through the metal heat dissipation layer 200, so that the working temperature of the flexible display panel 100 is low, and the service life of the flexible display panel is prolonged.
In the embodiment of the present application, an orthographic projection of the adhesive layer 300 on the flexible display panel 100 may not coincide with an orthographic projection of the first portion 201 of the metal heat dissipation layer 200 located in each of the edge bending regions 1012 on the flexible display panel 100.
In the present application, since the adhesive layer 300 has a certain thickness, after the metal heat dissipation layer 200 and the flexible display panel 100 are adhered by the adhesive layer 300, an orthographic projection of the adhesive layer 300 on the flexible display panel 100 is not overlapped with an orthographic projection of the first portion 201 on the flexible display panel 100 in a portion of the metal heat dissipation layer 200 connected to the edge bending region 1012 of the flexible display panel 100. That is, the first portion 201 of the metal heat dissipation layer 200 connected to the edge bending region 1012 of the flexible display panel 100 is connected to the flexible display panel 100 without using the adhesive layer 300, that is, a certain gap exists. Therefore, during the folding process of the flexible display panel 100 from the unfolded state, even if the first portion 201 of the metal heat dissipation layer 200 generates a certain amount of deformation. When the flexible display panel 100 is unfolded from the folded state to the final state (the included angle between the edge bending regions 1012 at the two sides of the central bending region 1011 is 180 degrees), the deformation amount is gradually reduced, and the flexible display panel does not exist for a long time.
Alternatively, as shown in fig. 6, an overlapping area may exist between an orthographic projection of the adhesive layer 300 in the folding display 000 on the flexible display panel 100 and an orthographic projection of the second portion 202 in the portion of the metal heat dissipation layer 200 connected to the edge bending region 1012 of the flexible display panel 100 on the flexible display panel 100. In this application, an orthogonal projection of the adhesive layer 300 on the flexible display panel 100 may be located within an orthogonal projection of the second portion 202 of the portion of the metal heat dissipation layer 200 connected to the edge bending region 1012 of the flexible display panel 100 on the flexible display panel 100. As such, the stability of the connection between the flexible display panel 100 and the metal heat dissipation layer 200 can be increased by the portion of the adhesive layer 300.
In the embodiment of the present application, please refer to fig. 7, and fig. 7 is a schematic diagram of a film structure of another foldable display screen provided in the embodiment of the present application. The folding display screen 000 may further include: the buffer foam layer 400, the buffer foam layer 400 may be connected to a side of the metal heat dissipation layer 200 away from the flexible display panel 100. And the orthographic projection of the buffer foam layer 400 on the flexible display panel 100 may be located outside the folding area 101. For example, the cushion foam layer 400 may be made of an elastic material. Thus, the buffering foam layer 400 can play a good role in energy absorption and buffering.
Optionally, please refer to fig. 8, and fig. 8 is a folding effect diagram of a folding display screen according to an embodiment of the present application. The thickness of the portion of the metal heat dissipation layer 200 connected to the planar region 102 of the flexible display panel 100 may be the same as the thickness of the second portion 202 of the portion of the metal heat dissipation layer 200 connected to the edge bending region 1012 of the flexible display panel 100. In this case, the folding display 000 may form a "water drop type" folding display when folded to a final state by the folding area 101 and the plane area 102 on the flexible display panel 100.
To sum up, the embodiment of the present application provides a folding display screen, include: flexible display panel and metal heat dissipation layer. The metal heat dissipation layer is connected with the back of the flexible display panel, and the part of the metal heat dissipation layer, which is connected with the edge bending area of the flexible display panel, comprises a first part and second parts located on two sides of the first part. The width of the first portion is larger than the width of the second portion in a direction perpendicular to the folding line of the flexible display panel. Therefore, even if the deformation amount generated by the first part in the metal heat dissipation layer is different from the deformation amount generated by the second part after the same bending stress is applied in the folding process of the folding display screen, only one gentle deformation bulge is displayed on one side of the first part close to the flexible display panel. And the acting force of the gentle deformation bulge on the flexible display panel is small, so that the probability of the bad phenomenon of impression of the flexible display panel can be effectively reduced.
In practical applications, the foldable display screen provided in the present application can be applied to various display devices capable of realizing a folding or unfolding function. For example, an embodiment of the present application further provides a display device, where the display device may be a mobile phone, a tablet computer, a notebook computer, an electronic book, and the like. The display device may include: a power supply assembly (not shown in the figure) and the foldable display screen 000, wherein the power supply assembly is connected with the foldable display screen 000 and is used for supplying power to the foldable display screen 000 so as to enable the foldable display screen to display images. The folding display 000 may be any of the folding displays mentioned above.
Optionally, the display device may further include: hinges and a housing (not shown). The hinge can be installed in the casing, and the edge of the flexible display panel 100 in the folding display screen 000 can be connected with the edge of the casing, so that the casing can wrap the folding display screen 000, so as to provide a good protection effect for the folding display screen 000, and prevent the folding display screen 000 from being damaged under the action of external force, so as to improve the safety performance of the display device. The back of the foldable display screen 000 may be attached to a hinge, so that when a user does not use the foldable display device, the housing foldable display device may be folded by the hinge to reduce its volume, thereby improving portability; when the user is using the foldable display device, the user can unfold the foldable display device to provide a larger display area and operation area, thereby improving the convenience of use.
In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless explicitly defined otherwise.
The above description is intended only to illustrate the alternative embodiments of the present application, and should not be construed as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (11)
1. A foldable display screen, comprising: a flexible display panel (100) and a metal heat dissipation layer (200);
the flexible display panel (100) has a folding area (101), the folding area (101) comprising: a central bending region (1011), and edge bending regions (1012) located at both sides of the central bending region (1011);
the metal heat dissipation layer (200) is connected with the back of the flexible display panel (100), the orthographic projection of the metal heat dissipation layer (200) on the flexible display panel (100) is located outside the central bending area (1011), and the edge bending area (1012) has an overlapping area, and the part of the metal heat dissipation layer (200) connected with the edge bending area (1012) of the flexible display panel (100) comprises: a first portion (201), and second portions (202) located on both sides of the first portion (201);
wherein the thickness of the first portion (201) is smaller than the thickness of the second portion (202), and the width of the first portion (201) is larger than the width of the second portion (202) in a direction perpendicular to a folding line (L) of the flexible display panel (100).
2. A foldable display screen according to claim 1, wherein the width of the first portion (201) in a direction perpendicular to the folding line (L) of the flexible display panel (100) is larger than the sum of the widths of the second portions (202) on both sides of the first portion (201).
3. A foldable display screen according to claim 2, wherein the number of first portions (201) in each edge fold region (1012) is one.
4. The foldable display screen of any one of claims 1 to 3, wherein the portion of the metal heat sink layer (200) connected to the edge bending region (1012) of the flexible display panel (100) further comprises: a third portion (203) located between the first portion (201) and each of the second portions (202);
wherein the thickness of the third portion (203) gradually decreases in a direction approaching the second portion (202) to the first portion (201).
5. A foldable display screen according to claim 4, wherein the side of the third portion (203) facing away from the flexible display panel (100) is curved concave (B1).
6. A foldable display screen according to claim 5, wherein a face of the first portion (201) facing away from the flexible display panel (100) is a plane (C1), the plane (C1) being tangential to the curved concave surface (B1).
7. The foldable display screen of any one of claims 1 to 3, further comprising: the adhesive layer (300) is used for adhering the metal heat dissipation layer (200) and the back surface of the flexible display panel (100), and the orthographic projection of the adhesive layer (300) on the flexible display panel (100) is not overlapped with the orthographic projection of the first part (201) on the flexible display panel (100).
8. A foldable display screen according to claim 7, wherein there is an overlap area between the orthographic projection of the adhesive layer (300) on the flexible display panel (100) and the orthographic projection of the second portion (202) on the flexible display panel (100).
9. The foldable display screen of any one of claims 1 to 3, further comprising: the cotton layer of buffering bubble, the cotton layer of buffering bubble with metal heat dissipation layer (200) deviate from the one side of flexible display panel (100) is connected, just the cotton layer of buffering bubble is in orthographic projection on flexible display panel (100) is located outside folding zone (101).
10. The foldable display screen of any one of claims 1 to 3, wherein the flexible display panel (100) further has planar regions (102) on both sides of the folded region (101), and wherein the thickness of the portion of the metal heat sink layer (200) connected to the planar regions (102) of the flexible display panel (100) is the same as the thickness of the second portion (202).
11. A display device, comprising: a power supply assembly and the foldable display screen of any one of claims 1 to 10, the power supply assembly being configured to supply power to the foldable display screen.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220383997.3U CN216527826U (en) | 2022-02-24 | 2022-02-24 | Folding display screen and display device |
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| CN202220383997.3U CN216527826U (en) | 2022-02-24 | 2022-02-24 | Folding display screen and display device |
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| CN216527826U true CN216527826U (en) | 2022-05-13 |
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| CN202220383997.3U Active CN216527826U (en) | 2022-02-24 | 2022-02-24 | Folding display screen and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114999329A (en) * | 2022-06-30 | 2022-09-02 | 武汉天马微电子有限公司 | Flexible display module and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114999329A (en) * | 2022-06-30 | 2022-09-02 | 武汉天马微电子有限公司 | Flexible display module and preparation method thereof |
| CN114999329B (en) * | 2022-06-30 | 2023-10-03 | 武汉天马微电子有限公司 | Flexible display module and preparation method thereof |
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