CN209980671U - Folding screen and electronic device - Google Patents
Folding screen and electronic device Download PDFInfo
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- CN209980671U CN209980671U CN201921003881.7U CN201921003881U CN209980671U CN 209980671 U CN209980671 U CN 209980671U CN 201921003881 U CN201921003881 U CN 201921003881U CN 209980671 U CN209980671 U CN 209980671U
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Abstract
The embodiment of the application discloses a folding screen, which comprises a display layer and a flexible substrate layer. The flexible substrate layer is located below the display layer and used for bearing the display layer, wherein the flexible substrate layer is made of flexible glass. The application also provides an electronic device with the folding screen. In this application, through adopting flexible glass as flexible stratum basale, because flexible glass's elastic modulus is high, hardness is high, can maintain a roughness of folding screen self, and the basement of making folding screen with flexible glass can realize buckling the function, has avoided or has reduced the unsmooth phenomenon on folding screen surface when having satisfied folding screen demand.
Description
Technical Field
The utility model relates to a show technical field, concretely relates to folding screen and have electronic device of folding screen.
Background
At present, the foldable screen has become popular due to its characteristics of large display size when unfolded and portability when folded. However, the existing folding screen can generate uneven creases in the folding area, and the creases can be seen in the bending area in the black screen state. The folding screen of the outward folding mode can be subjected to crease arching, and the folding screen of the inward folding mode can be subjected to crease recession, so that the appearance is greatly influenced. In addition, due to the flatness problem of the middle frame, after the folding screen is folded along a certain folding area, uneven traces can be generated in a non-folding area, so that the surface effect is poor.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a folding screen and an electronic device, which can effectively avoid concave-convex traces generated in a folding area and a non-folding area.
In one aspect, a folding screen is provided that includes a display layer and a flexible substrate layer. The flexible substrate layer is located below the display layer and used for bearing the display layer, wherein the flexible substrate layer is made of flexible glass.
In another aspect, an electronic device is provided that includes a foldable screen that includes a display layer and a flexible substrate layer. The flexible substrate layer is located below the display layer and used for bearing the display layer, wherein the flexible substrate layer is made of flexible glass.
In this application, through adopting flexible glass as flexible stratum basale, because flexible glass's elastic modulus is high, hardness is high, can maintain a roughness of folding screen self, and the basement of making folding screen with flexible glass can realize buckling the function, has avoided or has reduced the unsmooth phenomenon on folding screen surface when having satisfied folding screen demand.
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, 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 creative efforts.
Fig. 1 is a schematic cross-sectional view of a folding screen in an embodiment of the present application.
Fig. 2 is a schematic cross-sectional view of a folding screen in another embodiment of the present application.
Fig. 3 is a schematic cross-sectional view of a folding screen in yet another embodiment of the present application.
Fig. 4 is a schematic cross-sectional view of a folding screen in other embodiments of the present application.
Fig. 5 is a block diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Please refer to fig. 1, which is a schematic cross-sectional view of a foldable screen 100 according to an embodiment of the present application. The folding screen 100 comprises a display layer 11 and a flexible substrate layer 12. The flexible substrate layer 12 is located below the display layer 11 and is used for bearing the display layer 11, wherein the flexible substrate layer 12 is made of flexible glass.
Thus, in this application, through adopting flexible glass as flexible substrate layer 12, because flexible glass's elastic modulus is high, and hardness is high, it can maintain folding screen 100 self roughness, and the function of buckling can be realized to the basement of making folding screen with flexible glass, has avoided or has reduced the unsmooth phenomenon on folding screen surface when having satisfied folding screen demand.
In some embodiments, the glass transition temperature of the flexible glass in the present application is about 800 degrees, and the high temperature resistant effect can also be achieved.
In the embodiments of the present application, the terms "above", "below", and the like refer to the orientation of the viewing angle in the drawings, specifically, the below of the display layer 11 refers to the side of the display layer 11 away from the user viewing surface, and the above refers to the side of an element close to the user viewing surface.
The display layer 11 may be an OLED (Organic Light Emitting Diode) flexible display layer. That is, the display layer 11 is a flexible display layer formed by self-luminous organic light emitting diodes and can be bent or curved at a specific position or an arbitrary position.
In some embodiments, the folding screen 100 is a plug-in touch type folding screen. As shown in fig. 1, the foldable screen 100 further includes a touch layer 13, and the touch layer 13 is disposed above the display screen 11, wherein the touch layer 13 includes a substrate film and a touch structure disposed on the substrate film. The substrate film serves as a base material of the touch structure and bears the touch structure. The touch structure may include touch circuit elements such as touch electrodes that implement a touch detection function.
The substrate film and the touch structure disposed on the substrate film may also be bent or curved at a specific position or at an arbitrary position.
As shown in fig. 1, the display layer 11 includes an OLED light-emitting layer 111 and a polarizer layer 112, and the polarizer layer 112 is located between the OLED light-emitting layer 111 and the touch layer 13.
The OLED light-emitting layer 111 and the polarizer layer 112 can be bent or curved at any position or at a specific position.
The foldable screen 100 further includes a cover plate 14, and the cover plate 14 is located above the touch layer 13 and is used for protecting the foldable screen 100. Wherein the cover plate 14 is located on the side closest to the viewing surface of the user.
As shown in fig. 1, optical adhesive layers 15 are disposed between the cover plate 14 and the touch layer 13, and between the touch layer 13 and the display layer 11, and are used for bonding and fixing the cover plate 14 and the touch layer 13, and bonding and fixing the touch layer 13 and the display layer 11.
The optical adhesive layer 15 disposed between the cover sheet 14 and the touch layer 13 is formed by coating a light-transmissive optical adhesive on a contact surface of at least one of the cover sheet 14 and the touch layer 13. The optical adhesive layer 15 disposed between the touch layer 13 and the display layer 11 is formed by coating a light-transmitting optical adhesive on a contact surface of at least one of the touch layer 13 and the display layer 11.
As shown in fig. 1, the foldable screen 100 further includes a pressure sensitive adhesive layer 16, a back substrate layer 17, and a foam layer 18, which are sequentially stacked under the flexible substrate layer 12.
The pressure sensitive adhesive layer 16 is disposed between the flexible substrate layer 12 and the back substrate layer 17, and is used for adhering and fixing the flexible substrate layer 12 and the back substrate layer 17.
The foam layer 18 is used for fixing and buffering the folding screen 100.
In some embodiments, the cover plate 14 may be a transparent PI (polyimide film) film. The substrate film of the touch layer 13 may be a PET (polyethylene terephthalate) sheet. The backplane substrate layer 17 may also be a PET sheet.
Thus, the entire folding screen 100 can be bent or curved at any position or at a specific position. For example, the folding screen 100 is folded with a geometric center line as a folding region to form a folded shape.
And because the flexible glass is adopted as the flexible substrate layer, other layers can be effectively supported in a flat mode, and the concave-convex condition is avoided.
Fig. 2 is a schematic cross-sectional view of a foldable screen 100 in another embodiment. In another embodiment, the difference from the foldable screen 100 shown in fig. 1 is that the back substrate layer 17 shown in fig. 1 is omitted.
That is, the folding screen 100 also includes the display layer 11, the flexible substrate layer 12, the touch layer 13, the cover sheet 14, and the optical adhesive layer 15. The flexible substrate layer 12 only includes the pressure sensitive adhesive layer 16 and the foam layer 18, which are stacked in sequence, and does not include the back substrate layer 17.
In this embodiment, the flexible substrate layer 12 also functions as a back substrate layer to simultaneously serve as a support backplane for the entire folding screen.
In some embodiments, when the back substrate layer 17 is omitted, the thickness of the flexible substrate layer 12 in the folded screen 100 without the back substrate layer 17 may be greater than the thickness of the flexible substrate layer 12 in the folded screen 100 with the back substrate layer 17.
Referring to fig. 3, a cross-sectional view of a foldable screen 200 in yet another embodiment is shown. The foldable screen 200 shown in fig. 3 is different from the foldable screen 100 shown in fig. 1 in that the foldable screen 200 is a foldable screen adopting an on-cell touch structure.
As shown in fig. 3, the folding screen 200 includes a display layer 21 and a flexible substrate layer 22. The flexible substrate layer 22 is located below the display layer 21 and is used for supporting the display layer 21, wherein the flexible substrate layer 22 is made of flexible glass.
The flexible substrate layer 22 has the same structure and material properties as the flexible substrate layer 12.
The display layer 21 may also be an OLED (Organic Light Emitting Diode) flexible display layer. That is, the display layer 21 is a flexible display layer formed by self-luminous organic light emitting diodes that can be bent or curved at a specific position or an arbitrary position.
That is, in another embodiment, the touch layer 23 is disposed between the OLED light emitting layer 211 and the polarizer layer 212 to form a folded screen of an on-cell touch structure.
The touch layer 23 is formed on a surface of the OLED light-emitting layer 211 facing the polarizer layer 212 by evaporation. That is, on the surface of the OLED light-emitting layer 211 facing the polarizer layer 212, touch circuit elements such as touch electrodes for realizing a touch detection function may be disposed by vapor deposition to form the touch layer 23.
Since the touch layer 23 is formed by vapor deposition, the thickness of the folding screen 200 can be reduced as a whole. For example, the thickness of the touch layer 23 may be significantly less than the thickness of the OLED light-emitting layer 211 and the polarizer layer 212.
As shown in fig. 3, the foldable screen 200 further includes a cover 24, and the cover 24 is located above the polarizer layer 212 for protecting the foldable screen 200. Wherein the cover plate 24 is located on a side of the foldable screen 200 closest to a viewing surface of a user, so as to protect the display surface of the foldable screen 200 as a whole.
An optical adhesive layer 25 is disposed between the cover plate 24 and the polarizer layer 212, and is used for bonding and fixing the cover plate 24 and the polarizer layer 212.
Wherein the optical adhesive layer 25 is formed by coating a light-transmitting optical adhesive on a contact surface of at least one of the cover plate 24 and the polarizer layer 212.
As shown in fig. 3, the foldable screen 200 further includes a pressure sensitive adhesive layer 26, a back substrate layer 27, and a foam layer 28, which are sequentially stacked under the flexible substrate layer 22.
The pressure sensitive adhesive layer 26 is disposed between the flexible substrate layer 22 and the back substrate layer 27, and is used for adhering and fixing the flexible substrate layer 22 and the back substrate layer 27.
The foam layer 28 is used for realizing the installation, fixation and buffering of the folding screen 200.
Similarly, the cover plate 24 may be a transparent PI (polyimide film) film. The backplane substrate layer 27 may be a PET (polyethylene terephthalate) sheet.
The entire folding screen 100 can be bent or curved at any position or at a specific position. For example, the folding screen 100 is folded with a geometric center line as a folding region to form a folded shape.
The foldable screen 200 shown in fig. 3 is different from the foldable screen 100 shown in fig. 1 only in the formation manner of the touch structure, that is, one is a plug-in touch structure, and the other is an on-cell touch structure, and more detailed descriptions of other similar elements can be found in reference to the description of fig. 1.
Please refer to fig. 4, which is a schematic cross-sectional view of a foldable screen 200 in another embodiment. Among other things, in another embodiment, the difference from the folding screen 200 shown in FIG. 3 is that the back substrate layer 27 shown in FIG. 3 is omitted.
That is, the foldable screen 200 also includes the display layer 21, the flexible substrate layer 22, the touch layer 23, the cover sheet 24, and the optical adhesive layer 25 shown in fig. 3. The flexible substrate layer 22 only includes the pressure sensitive adhesive layer 26 and the foam layer 28 stacked in sequence, and does not include the back substrate layer 27.
In this embodiment, the flexible substrate layer 22 also has the function of a back substrate layer to simultaneously serve as a support backplane for the entire folding screen.
In some embodiments, the thickness of flexible base layer 22 in folded screen 200 without back substrate layer 27 may be greater than the thickness of flexible base layer 22 in folded screen 200 with back substrate layer 27 when back substrate layer 27 is omitted.
The foldable screen 100/200 may be an OLED touch display screen, and has both touch input and display output functions, and can be bent or curved in a specific area or any area.
Fig. 5 is a schematic view of an electronic device 1 according to an embodiment of the present application. As shown in fig. 5, the electronic device 1 includes the folding screen 100 or 200 in any of the foregoing embodiments.
The electronic device 1 may further include a flexible circuit board, functional devices of the electronic device 1, such as a processor, a memory, and the like, are disposed on the flexible circuit board, and the functional devices are collectively disposed in two or more regions, and no functional device is disposed at a boundary line between each region, so that bending or bending can be achieved at the boundary line. Wherein the two or more regions may be a plurality of regions spaced along an edge and each region extends to the edge and an edge opposite the edge.
The housing of the electronic device 1 may also be made of PI or PET material, so as to form the electronic device 1 that can be bent or curved in a specific area or any area as a whole.
The electronic device 1 may further include other components, which are not described herein since they are not related to the improvement of the present invention.
The electronic device 1 may be a device with a display screen, such as a mobile phone, a tablet computer, and an electronic book.
In some embodiments, the electronic apparatus 1 related to the present application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, which have wireless communication functions, and various forms of User Equipment (UE), Mobile Stations (MS), terminal Equipment (terminal device), and so on. For convenience of description, the above-mentioned apparatuses are collectively referred to as electronic devices.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The embodiments of the present invention have been described in detail, and the principles and embodiments of the present invention have been explained herein using specific embodiments, and the above description of the embodiments is 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 (15)
1. A foldable screen, the foldable screen comprising:
a display layer; and
and the flexible substrate layer is positioned below the display layer and used for bearing the display layer, wherein the flexible substrate layer is made of flexible glass.
2. A folded screen according to claim 1, wherein the display layer is an OLED flexible display layer.
3. A foldable screen as recited in claim 2, further comprising a touch layer disposed over the display screen, the touch layer comprising a substrate film and a touch structure disposed on the substrate film.
4. A folded screen according to claim 3, wherein the display layer comprises an OLED light-emitting layer and a polarizer layer in a stacked arrangement, the polarizer layer being positioned between the OLED light-emitting layer and the touch layer.
5. A foldable screen as recited in claim 3, further comprising a cover sheet positioned over the touch layer for protecting the foldable screen.
6. A folding screen according to claim 5 wherein optical glue layers are provided between the cover sheet and the touch layer and between the touch layer and the display layer for adhesively securing the cover sheet to the touch layer and adhesively securing the touch layer to the display layer.
7. A folding screen according to any of claims 3 to 6 further comprising a pressure sensitive adhesive layer, a back substrate layer and a foam layer disposed in sequence beneath the flexible substrate layer.
8. A folding screen according to any of claims 3 to 6 further comprising a pressure sensitive adhesive layer and a foam layer disposed in a stack beneath the flexible substrate layer.
9. A folded screen according to claim 1, wherein the display layer comprises an OLED emissive layer and a polarizer layer in a stacked arrangement, the OLED emissive layer being located between the polarizer layer and the flexible substrate layer, the folded screen further comprising a touch layer disposed between the OLED emissive layer and the polarizer layer.
10. A folding screen according to claim 9 wherein the touch layer is formed by evaporation on the surface of the OLED light-emitting layer facing the polarizer layer.
11. A foldable screen according to claim 9, further comprising a cover sheet positioned over the polarizer layer for protecting the foldable screen.
12. A foldable screen according to claim 11, wherein an optical adhesive layer is provided between the cover sheet and the polarizer layer for adhesively securing the cover sheet to the polarizer layer.
13. A folding screen according to any of claims 9 to 12 further comprising a pressure sensitive adhesive layer, a back substrate layer and a foam layer disposed in sequence beneath the flexible substrate layer.
14. A folding screen according to any of claims 9 to 12 further comprising a pressure sensitive adhesive layer and a foam layer disposed in a stack beneath the flexible substrate layer.
15. An electronic device, characterized in that the electronic device comprises a folding screen according to any of claims 1-14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921003881.7U CN209980671U (en) | 2019-06-29 | 2019-06-29 | Folding screen and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921003881.7U CN209980671U (en) | 2019-06-29 | 2019-06-29 | Folding screen and electronic device |
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| Publication Number | Publication Date |
|---|---|
| CN209980671U true CN209980671U (en) | 2020-01-21 |
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| CN201921003881.7U Active CN209980671U (en) | 2019-06-29 | 2019-06-29 | Folding screen and electronic device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110718646A (en) * | 2019-09-25 | 2020-01-21 | 武汉华星光电半导体显示技术有限公司 | OLED folding display screen and manufacturing method thereof |
| CN111923521A (en) * | 2020-07-27 | 2020-11-13 | 苏州昱铮辉光电科技有限公司 | Flexible glass and flexible glass folding screen |
| US11005057B2 (en) | 2019-09-25 | 2021-05-11 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Organic light emitting diode folding display panel and manufacturing method thereof |
-
2019
- 2019-06-29 CN CN201921003881.7U patent/CN209980671U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110718646A (en) * | 2019-09-25 | 2020-01-21 | 武汉华星光电半导体显示技术有限公司 | OLED folding display screen and manufacturing method thereof |
| US11005057B2 (en) | 2019-09-25 | 2021-05-11 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Organic light emitting diode folding display panel and manufacturing method thereof |
| CN111923521A (en) * | 2020-07-27 | 2020-11-13 | 苏州昱铮辉光电科技有限公司 | Flexible glass and flexible glass folding screen |
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