CN212276721U - Display device - Google Patents
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- CN212276721U CN212276721U CN202021570515.2U CN202021570515U CN212276721U CN 212276721 U CN212276721 U CN 212276721U CN 202021570515 U CN202021570515 U CN 202021570515U CN 212276721 U CN212276721 U CN 212276721U
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Abstract
The application provides a display device, which comprises a flexible display panel, a light source and a light source, wherein the flexible display panel comprises a light-emitting surface; the flexible display panel comprises a rigid support layer and a first elastic support layer which are stacked on one side of the flexible display panel, wherein the side of the flexible display panel, which is far away from the light emergent surface, is provided with the rigid support layer, the rigid support layer is used for supporting the flexible display panel to keep flat, and the first elastic support layer is used for applying an acting force for restoring an initial state to the flexible display panel when the flexible display panel deforms. This application technical scheme not only can make flexible display panel keep the planarization through combining together rigidity supporting layer and first elastic support layer, can also resume to initial levelling state when flexible display panel takes place to deform.
Description
Technical Field
The utility model relates to a show technical field, especially relate to a display device.
Background
With the development of display technology, flexible display screens are receiving more and more attention. In practical applications, a reinforcing structure is usually disposed on the back surface of the flexible display panel, and the reinforcing structure is generally composed of support bars arranged side by side in a regular shape, and the reinforcing structure is used for supporting the flexible display panel and improving the rigidity of the flexible display panel. Wherein, the supporting strip is made of light and high-strength materials such as aluminum, plastic or wood. However, when the conventional flexible display screen is deformed under the action of an external impact, the flexible display screen is not easily restored to the original shape, as shown in fig. 1.
SUMMERY OF THE UTILITY MODEL
The utility model provides a display device to promote flexible display panel's deformation restoring force and impact resistance.
In order to solve the above problem, the utility model discloses a display device, include:
a flexible display panel comprising a light exit surface;
the flexible display panel comprises a rigid support layer and a first elastic support layer which are arranged on one side of the flexible display panel, which is far away from the light emergent surface in a stacking mode, wherein the rigid support layer is used for supporting the flexible display panel to keep flat, and the first elastic support layer is used for applying acting force for restoring the original state to the flexible display panel when the flexible display panel deforms.
In an alternative implementation manner, the rigid support layer includes a plurality of first horizontal portions and a plurality of protruding portions, each protruding portion is connected to a different first horizontal portion, each first horizontal portion is disposed near the flexible display panel, an orthographic projection of the first horizontal portion on the flexible display panel covers an orthographic projection of the protruding portion on the flexible display panel, and the first elastic support layer fills between the protruding portions or covers the rigid support layer.
In an alternative implementation, an orthographic projection of the first horizontal portion on the flexible display panel covers the flexible display panel.
In an alternative implementation, the raised portions include first vertical portions perpendicular to the first horizontal portion, and the first resilient support layer fills between the first vertical portions.
In an optional implementation manner, the protruding portion includes a second vertical portion perpendicular to the first horizontal portion, and a second horizontal portion parallel to the first horizontal portion, the first horizontal portion and the second horizontal portion are respectively connected to two ends of the second vertical portion, and the first elastic supporting layer covers the first horizontal portion, the second vertical portion, and the second horizontal portion.
In an alternative implementation, the second vertical portion is connected to a central position of the second horizontal portion.
In an alternative implementation manner, the flexible display panel is folded inwards, the second vertical portion is connected to a first end of the second horizontal portion, and a second end of the second horizontal portion faces an edge of the flexible display panel at a closer distance.
In an alternative implementation manner, the flexible display panel is folded outwards, the second vertical portion is connected to a first end of the second horizontal portion, and a second end of the second horizontal portion faces away from an edge of the flexible display panel at a relatively short distance.
In an alternative implementation, the display device further includes a second elastic support layer disposed on a side of the rigid support layer facing away from the first elastic support layer, and the material of the second elastic support layer is the same as the material of the first elastic support layer.
In an alternative implementation, the material of the first resilient support layer is aerogel.
Compared with the prior art, the utility model discloses a following advantage:
the technical scheme of the application provides a display device, which comprises a flexible display panel, wherein the flexible display panel comprises a light-emitting surface; the flexible display panel comprises a rigid support layer and a first elastic support layer which are stacked on one side of the flexible display panel, wherein the side of the flexible display panel, which is far away from the light emergent surface, is provided with the rigid support layer, the rigid support layer is used for supporting the flexible display panel to keep flat, and the first elastic support layer is used for applying an acting force for restoring an initial state to the flexible display panel when the flexible display panel deforms. This application technical scheme not only can make flexible display panel keep the planarization through combining together rigidity supporting layer and first elastic support layer, can also resume to initial levelling state when flexible display panel takes place to deform.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic view showing a structure of a display device in the related art;
fig. 2 is a schematic cross-sectional view illustrating a first display device according to an embodiment of the present disclosure;
FIG. 3 is a schematic cross-sectional view illustrating a first display device according to an embodiment of the present disclosure being bent after being pressed;
FIG. 4 is a schematic cross-sectional view of a second display device according to an embodiment of the present disclosure;
FIG. 5 is a schematic cross-sectional view illustrating a second display device according to an embodiment of the present disclosure being bent after being pressed;
FIG. 6 is a schematic cross-sectional view of a third display device according to an embodiment of the present disclosure;
FIG. 7 is a schematic cross-sectional view of a fourth display device according to an embodiment of the present disclosure;
fig. 8 is a schematic cross-sectional view illustrating a fifth display device according to an embodiment of the present disclosure;
fig. 9 is a schematic cross-sectional view illustrating a sixth display device according to an embodiment of the present application.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
An embodiment of the present application provides a display device, and referring to fig. 2, the display device may include: a flexible display panel 21, the flexible display panel 21 including a light exit surface; the flexible display panel 21 is provided with a rigid support layer 22 and a first elastic support layer 23, which are stacked on a side of the flexible display panel 21 away from the light exit surface, wherein the rigid support layer 22 is used for supporting the flexible display panel 21 to keep flat, and the first elastic support layer 23 is used for applying an acting force to the flexible display panel 21 to restore to an initial state when the flexible display panel is deformed.
The material of the first elastic support layer 23 may be a material with an elastic modulus greater than or equal to 3Gpa and less than or equal to 30Gpa, such as an aerogel material like hard carbon aerogel. The hard carbon aerogel has the performances of superelasticity, high strength, extremely high rebound speed and the like, is an ultra-light material, and can lighten the quality of the display device by adopting the hard carbon aerogel.
The material of the rigid support layer 22 may be a material having an elastic modulus ranging from 50GPa or more to 200GPa or less, such as stainless steel. The thickness of the rigid support layer 22 may range from 0.05mm to 0.5 mm. In order to provide stable mechanical properties to the display device, the thickness of the rigid support layer 22 may be greater than or equal to 0.1mm and less than or equal to 0.25mm, taking into account the thickness and weight of the display device.
The rigid support layer 22 and the first elastic support layer 23 constitute an under-screen support structure applied to a flexible display panel that is foldable or rollable. In practical applications, the rigid support layer 22 may be disposed close to the flexible display panel 21 to improve the deformation resistance of the display device, as shown in fig. 2; a first resilient support layer 23 may also be provided adjacent to the flexible display panel 21 to improve the impact resistance of the display device.
Referring to fig. 3, when the display device is bent, the display device can be restored to its original position by its own elastic restoring force under the action of the first elastic supporting layer 23, and its resilient speed is fast, so as to improve the deformation restoring force of the display device.
Similarly, when the display device is deformed by external impact force, the display device can be quickly restored to the original position (flat state) through the elastic restoring force of the display device under the action of the first elastic supporting layer 23, the impact resistance of the display device is improved, and the panel is prevented from being deformed after being pressed.
The display device provided by the embodiment can enable the display device to have stable and excellent mechanical performance by arranging the rigid supporting layer and the first elastic supporting layer on the back of the flexible display panel, so that the panel keeps certain flatness or smoothness, and meanwhile, the deformation restoring force and the impact resistance of the display device are improved.
In practical applications, the display device may further include a protection film 24 and a double-sided adhesive layer 25, where the protection film 24 is disposed on a light-emitting surface side of the flexible display panel 21, and the double-sided adhesive layer 25 is used for adhering a back surface of the flexible display panel 21 and an under-screen support structure composed of the rigid support layer 22 and the first elastic support layer 23.
In a specific implementation, the shapes of the rigid support layer 22 and the first elastic support layer 23 can be designed according to actual stress conditions. In one implementation, the rigid support layer 22 and the first resilient support layer 23 may be sheet-like structures as shown in fig. 2; in another implementation, referring to fig. 4, 6 to 8, the rigid support layer 22 may include a plurality of first horizontal portions 221 and a plurality of protruding portions 222, each protruding portion 222 is connected to a different first horizontal portion 221, each first horizontal portion 221 is disposed near the flexible display panel 21, an orthogonal projection of the first horizontal portion 221 on the flexible display panel 21 covers an orthogonal projection of the protruding portion 222 on the flexible display panel 21, and the first elastic support layer 23 is filled between the protruding portions 222 or covers the rigid support layer 22.
Wherein, the orthographic projection of the first horizontal portion 221 on the flexible display panel 21 may cover the flexible display panel 21.
Referring to fig. 4, the protrusion portion 222 may include first vertical portions 41 perpendicular to the first horizontal portion 221, and the first elastic support layer 23 is filled between the first vertical portions 41. Compared with the structure shown in fig. 2, the rigid support layer 22 shown in fig. 4 includes a plurality of T-shaped structures, the contact area between the rigid support layer 22 and the first elastic support layer 23 is larger, and when the display device is subjected to an external impact force, as shown in fig. 5, the first elastic support layer 23 can apply a larger restoring force to the rigid support layer 22, which is more beneficial for the flexible display panel to return to its original state.
Referring to fig. 6, the protrusion 222 may include a second vertical portion 61 perpendicular to the first horizontal portion 221 and a second horizontal portion 62 parallel to the first horizontal portion 221, the first horizontal portion 221 and the second horizontal portion 62 are connected to both ends of the second vertical portion 61, respectively, and the first elastic support layer 23 covers the first horizontal portion 221, the second vertical portion 61, and the second horizontal portion 62.
Referring to fig. 6, the second vertical portion 61 is connected to a central position of the second horizontal portion 62, and the second vertical portion 61 is connected to a central position of the first horizontal portion 221. That is, the rigid support layer 22 includes a plurality of i-shaped structures, which further increases the contact area between the rigid support layer 22 and the first elastic support layer 23, and further increases the restoring force when the display device is deformed.
Referring to fig. 7, the protrusion 222 may include a second vertical portion 61 perpendicular to the first horizontal portion 221, and a second horizontal portion 62 parallel to the first horizontal portion 221, the first horizontal portion 221 and the second horizontal portion 62 are respectively connected to both ends of the second vertical portion 61, the first elastic support layer 23 covers the first horizontal portion 221, the second vertical portion 61, and the second horizontal portion 62, the second vertical portion 61 is connected to a first end of the second horizontal portion 62, and a second end of the second horizontal portion 62 faces an edge of the flexible display panel 21 having a closer distance.
The rigid support layer 22 and the first elastic support layer 23 shown in fig. 7 are more suitable for a display panel with a folding manner of folding inward. When the display device is turned from the folded-in state to the unfolded state, in order to make the display panel more flat, the second ends of the second horizontal portions 62 face the edge of the closer flexible display panel 21, that is, the second ends of the second horizontal portions 62 face away from the central axis l ' of the flexible display panel 21, that is, the second ends of the second horizontal portions 62 located on the left side of the central axis l ' of the flexible display panel 21 face the left side edge, and the second ends of the second horizontal portions 62 located on the right side of the central axis l ' of the flexible display panel 21 face the right side edge. By arranging the orientation of the second horizontal portion 62 in the opposite direction, the interaction between the first elastic support layer 23 and the second horizontal portion 62 is more favorable for the bent flexible display panel to be restored from the folded-in state to the flat state.
Referring to fig. 8, the protrusion 222 may include a second vertical portion 61 perpendicular to the first horizontal portion 221 and a second horizontal portion 62 parallel to the first horizontal portion 221, the first horizontal portion 221 and the second horizontal portion 62 are respectively connected to both ends of the second vertical portion 61, the first elastic support layer 23 covers the first horizontal portion 221, the second vertical portion 61, and the second horizontal portion 62, the second vertical portion 61 is connected to a first end of the second horizontal portion 62, and a second end of the second horizontal portion 62 faces away from an edge of the relatively close flexible display panel 21.
The rigid support layer 22 and the first elastic support layer 23 shown in fig. 8 are more suitable for a display panel whose folding manner is folding outward. When the display device is folded from the folded state to the unfolded state, in order to make the display panel more flat, the second ends of the second horizontal portions 62 are both facing away from the edge of the closer flexible display panel 21, that is, the second ends of the second horizontal portions 62 are both facing the central axis l ' of the flexible display panel 21, that is, the second end of the second horizontal portion 62 located on the left side of the central axis l ' of the flexible display panel 21 is facing the right edge, and the second end of the second horizontal portion 62 located on the right side of the central axis l ' of the flexible display panel 21 is facing the left edge. By arranging the orientation of the second horizontal portion 62 in the opposite direction, the interaction between the first resilient support layer 23 and the second horizontal portion 62 facilitates the flexible display panel to return from the folded-out state to the flat state.
Referring to fig. 9, the display device provided in this embodiment may further include a second elastic support layer 91 disposed on a side of the rigid support layer 22 facing away from the first elastic support layer 23, and the material of the second elastic support layer 91 may be the same as that of the first elastic support layer 23. In the display device shown in fig. 9, the first elastic support layer 23 and the second elastic support layer 91 encapsulate the rigid support layer 22, and when the second elastic support layer 91 is close to the flexible display panel 21, the second elastic support layer 91 directly contacts the flexible display panel 21, which may play a role in buffering, and further improve the impact resistance of the display screen.
In a specific implementation, the rigid support layers 22 with different shapes can be prepared by cutting, CNC or etching; the first and second resilient support layers 23, 91 may be freeze dried into an aerogel using a mold to form the desired shape. In practical application, for the structure shown in fig. 2, the first elastic supporting layer 23 and the rigid supporting layer 22 can be prepared separately and then adhered together by glue; for the structure shown in fig. 3 to 9, the rigid support layer 22 may be shaped and then placed in a mold, and then the mold is filled with gel and freeze-dried to obtain an integrated under-screen support structure (insert molding).
The embodiment provides a display device, which comprises a flexible display panel, a light source and a light source, wherein the flexible display panel comprises a light emergent surface; the flexible display panel comprises a rigid support layer and a first elastic support layer which are stacked on one side of the flexible display panel, wherein the side of the flexible display panel, which is far away from the light emergent surface, is provided with the rigid support layer, the rigid support layer is used for supporting the flexible display panel to keep flat, and the first elastic support layer is used for applying an acting force for restoring an initial state to the flexible display panel when the flexible display panel deforms. This application technical scheme not only can make flexible display panel keep the planarization through combining together rigidity supporting layer and first elastic support layer, can also receive external impact at flexible display panel and resume to initial levelling state when taking place deformation.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The display device provided by the present invention is described in detail above, and the principle and the implementation of the present invention are explained by applying specific examples, and the descriptions of the above examples are only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (10)
1. A display device, comprising:
a flexible display panel comprising a light exit surface;
the flexible display panel comprises a rigid support layer and a first elastic support layer which are arranged on one side of the flexible display panel, which is far away from the light emergent surface in a stacking mode, wherein the rigid support layer is used for supporting the flexible display panel to keep flat, and the first elastic support layer is used for applying acting force for restoring the original state to the flexible display panel when the flexible display panel deforms.
2. The display device according to claim 1, wherein the rigid support layer includes a plurality of first horizontal portions and a plurality of protruding portions, each protruding portion is connected to a different first horizontal portion, each first horizontal portion is disposed adjacent to the flexible display panel, an orthographic projection of the first horizontal portion on the flexible display panel covers an orthographic projection of the protruding portion on the flexible display panel, and the first elastic support layer fills between the protruding portions or covers the rigid support layer.
3. The display device according to claim 2, wherein an orthographic projection of the first horizontal portion on the flexible display panel covers the flexible display panel.
4. The display device according to claim 2, wherein the protrusion portion includes first vertical portions perpendicular to the first horizontal portion, and the first elastic support layer is filled between the first vertical portions.
5. The display device according to claim 2, wherein the protrusion portion includes a second vertical portion perpendicular to the first horizontal portion, and a second horizontal portion parallel to the first horizontal portion, the first horizontal portion and the second horizontal portion are respectively connected to both ends of the second vertical portion, and the first elastic support layer covers the first horizontal portion, the second vertical portion, and the second horizontal portion.
6. The display device according to claim 5, wherein the second vertical portion is connected to a central position of the second horizontal portion.
7. The display device according to claim 5, wherein the flexible display panel is folded inward, the second vertical portion is connected to a first end of the second horizontal portion, and a second end of the second horizontal portion faces an edge of the flexible display panel at a closer distance.
8. The display device according to claim 5, wherein the flexible display panel is folded in an outward manner, the second vertical portion is connected to a first end of the second horizontal portion, and a second end of the second horizontal portion faces away from an edge of the flexible display panel at a closer distance.
9. A display device as claimed in claim 1, characterized in that the display device further comprises a second resilient support layer arranged on a side of the rigid support layer facing away from the first resilient support layer, the material of the second resilient support layer being the same as the material of the first resilient support layer.
10. The display device according to any one of claims 1 to 9, wherein the material of the first elastic support layer is aerogel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021570515.2U CN212276721U (en) | 2020-07-31 | 2020-07-31 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021570515.2U CN212276721U (en) | 2020-07-31 | 2020-07-31 | Display device |
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| CN212276721U true CN212276721U (en) | 2021-01-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192972A (en) * | 2021-04-01 | 2021-07-30 | 武汉华星光电半导体显示技术有限公司 | Display device and preparation method thereof |
| CN114550588A (en) * | 2022-02-21 | 2022-05-27 | 合肥维信诺科技有限公司 | Flexible cover plate, display device and preparation method of flexible cover plate |
-
2020
- 2020-07-31 CN CN202021570515.2U patent/CN212276721U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192972A (en) * | 2021-04-01 | 2021-07-30 | 武汉华星光电半导体显示技术有限公司 | Display device and preparation method thereof |
| CN114550588A (en) * | 2022-02-21 | 2022-05-27 | 合肥维信诺科技有限公司 | Flexible cover plate, display device and preparation method of flexible cover plate |
| CN114550588B (en) * | 2022-02-21 | 2023-11-28 | 合肥维信诺科技有限公司 | Flexible cover plate, display device and preparation method of flexible cover plate |
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