CN111986571A - Flexible display screen - Google Patents
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- CN111986571A CN111986571A CN202010782374.9A CN202010782374A CN111986571A CN 111986571 A CN111986571 A CN 111986571A CN 202010782374 A CN202010782374 A CN 202010782374A CN 111986571 A CN111986571 A CN 111986571A
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- 238000005452 bending Methods 0.000 claims abstract description 83
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 71
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000011084 recovery Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a flexible display screen, comprising: the front frame is of a sectional structure; the display module is a flexible foldable display module; the supporting layer is arranged on the back of the display module to increase the rigidity of the display screen; the back plate assembly is arranged below the supporting layer, and the supporting layer, the display module and the front frame are sequentially stacked on the back plate assembly; the support layer and the back plate assembly comprise at least one bending area and at least one non-bending area; the bending area can be bent or bent relative to the non-bending area so as to bend or bend the flexible display screen; and the support layer is provided with a pattern which is easy to bend.
Description
Technical Field
The application relates to the technical field of displays, in particular to a flexible display screen.
Background
The flexible display device is more and more favored by market in application market, and flexible screen cell-phone is the cell-phone that adopts flexible, the good screen of pliability, compares in traditional screen, and flexible screen advantage is obvious, not only is more frivolous in the volume, also is less than original device in the consumption, helps promoting the duration of equipment, simultaneously based on its flexible, the good characteristic of pliability, its durable degree also is higher than the screen in the past greatly, reduces the unexpected probability of damaging of equipment. The flexible display has advantages of being light, thin, not fragile, foldable and rollable, and thus, in recent years, the flexible display has been widely used in terminal products such as mobile phones. However, existing flexible displays are less used in foldable and rollable end products. In general, in order to satisfy the foldable or rollable application of the flexible display, flexible materials such as resin/plastic are required for the protective cover plate at the outermost layer and the functional film layer at the inner layer. Such materials have poor rigidity, and after bending and flattening operations, creep elongation or plastic deformation can occur, so that the flexible display screen is wrinkled, arched or creased, and the visual experience of a user is seriously affected.
Disclosure of Invention
In order to overcome the defects of the prior art, the embodiment of the application provides a flexible display screen, which not only can increase the rigidity of the display screen, but also avoids folds, arches or creases caused by repeated folding or curling of the flexible display screen.
The embodiment of the invention provides a flexible display screen, which comprises:
the front frame is of a sectional structure;
the display module is a flexible foldable display module;
the supporting layer is arranged on the back of the display module to increase the rigidity of the display screen;
the back plate assembly is arranged below the supporting layer, and the supporting layer, the display module and the front frame are sequentially stacked on the back plate assembly;
wherein the support layer and the backplate assembly comprise at least one bending region and at least one non-bending region; the bending area can be bent or bent relative to the non-bending area so as to bend or bend the flexible display screen; and the support layer is provided with a pattern which is easy to bend.
According to the flexible display screen provided by the embodiment of the invention, the thickness of the bending area is not more than that of the non-bending area.
According to the flexible display screen provided by the embodiment of the invention, the support layer is provided with the easily-bent patterns on the bending area.
According to the flexible display screen provided by the embodiment of the invention, the supporting layer is a metal plate.
According to the flexible display screen provided by the embodiment of the invention, the material of the supporting layer comprises stainless steel, metal aluminum, metal magnesium and liquid metal.
According to the flexible display screen provided by the embodiment of the invention, the thickness of the supporting layer is between 0.02 mm and 1 mm.
According to the flexible display screen provided by the embodiment of the invention, the metal elongation of the supporting layer at the bending area is more than 10%, and the supporting layer positioned in the bending area is stretched, extended and recovered along with the length change of the flexible display screen in the bending process.
According to the flexible display screen provided by the embodiment of the invention, when the at least one bending area comprises one bending area, the bending area is positioned in the middle of the supporting layer.
According to the flexible display screen provided by the embodiment of the invention, the at least one bending area comprises a plurality of bending areas, the at least one non-bending area comprises a plurality of non-bending areas, and at least one bending area is arranged between every two adjacent non-bending areas.
According to the flexible display screen provided by the embodiment of the invention, the supporting layer is adhered to the back surface of the display module through the foldable adhesive layer.
The invention has the beneficial effects that: according to the flexible display screen provided by the embodiment of the invention, the middle support formed by compounding the metal plate and the support plate of the flexible display screen in the prior art is simplified into only one special support layer, the special support layer is provided with the pattern which is easy to bend on the bending area, and the pattern holes in the hexagonal shape are designed, so that the support layer can be stretched, extended and restored synchronously along with the length change of the flexible display screen in the bending process, the space for the length change of the flexible display screen is provided, additional stress strain is not added to the flexible display screen, the relative dislocation quantity between the support layer and an upper layer material is reduced, and the risk of falling off of the display layer is reduced. And the supporting layer in this embodiment is thick, and intensity is higher, has better intensity and support to flexible display screen when expanding, and the equipment collocation with the complete machine is convenient, becomes flexible display screen and assembles like good with the stereoplasm screen like LCD screen with the rigid display screen, need not to change the equipment of flexible equipment and increases extra equipment investment yet, reduces the cost of input. The flexible display screen provided by the embodiment of the invention has stronger rigidity, and can be bent in a certain radian when the display screen is folded or curled, so that folds, arches or creases caused by folding or curling are avoided, and the visual experience of a user is improved.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a flexible display screen provided in this embodiment.
Fig. 2 is a schematic structural diagram of the supporting layer provided in this embodiment.
Fig. 3 is a detailed view of the pattern of the supporting layer provided in the present embodiment.
Fig. 4 is a schematic diagram of the dimensional relationship of the patterns implementing the provided support layer.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
In the prior art, the flexible display device mainly comprises a front frame, a display layer, a metal plate, a support plate, a set assembly and the like, wherein the metal plate is positioned below the display layer, the metal plate is a layer of integral thinner material and plays a role in relieving wrinkles, arching and creases, the material cannot be too thick, and if the thickness is thicker, the strength is high but the bending performance is poor; the backup pad only distributes at upper/lower non-bending region, and the backup pad material is relatively thick, intensity is high, plays the convenience of supporting flexible display screen and assembling with the complete machine, because it separates in bending region, and the middle bending region also has the segment difference, and the roughness performance of complete machine is difficult to ensure, and easy assemblability is relatively poor with the planarization promptly, and the cost is also higher.
The embodiment of the application provides a flexible display screen which can be folded or rolled and can be applied to a foldable terminal. The terminal can be a mobile phone, a tablet computer, a notebook computer, a television, an intelligent wearable device and the like. The flexible display screen provided by the embodiment of the application can also be independently arranged, can be in communication connection with other equipment and is used for displaying the content indicated by the other equipment, and the application scene is not limited by the embodiment of the application.
As shown in fig. 1, a schematic structural diagram of a flexible display screen provided in an embodiment of the present invention is shown. Referring to fig. 1, the flexible display screen provided in this embodiment includes a front frame 10, a display module 20, a supporting layer 30, and a back plate assembly 40, which are sequentially disposed. Wherein, the front frame 10 is a sectional structure, and the front frame 10 is discontinuous. The display module assembly 20 comprises a display layer, a circuit board and related chips, wherein the display module assembly 20 is a flexible foldable display module assembly, namely, the display module assembly 20 can be bent or flattened. The support layer 30 is disposed on the back of the display module 20, the support layer 30 is used to increase the rigidity of the flexible display screen, the backplane assembly 40 is disposed below the support layer 30, the backplane assembly 40 is further provided with a bending structure 401, and the flexible display screen can be bent or folded through the bending structure 401. The support layer 30, the display module 20 and the front frame 10 are sequentially stacked on the backboard assembly 40. The support layer 30 and the backplate assembly 40 comprise at least one bending region 100 and at least one non-bending region 200; the bending region 100 can bend or bend relative to the non-bending region 200 to bend or bend the flexible display screen; the bending region 100 of the support layer 30 corresponds to the bending region 100 of the backplate assembly 40, and the non-bending region 200 of the support layer 30 corresponds to the non-bending region 200 of the backplate assembly 40; the support layer 30 is provided with a flexible pattern 301. In the flexible display screen provided in this embodiment, the thickness of the bending region 100 is not greater than the thickness of the non-bending region 200. Preferably, the thickness of the bending region 100 is set to be consistent with that of the non-bending region 200, that is, the flexible display screen is approximately 180 ° after being unfolded. The support layer 30 is adhered to the back of the display module 20 by a foldable adhesive layer.
Fig. 2 is a schematic structural diagram of the supporting layer provided in this embodiment. When the at least one bending area 100 comprises one bending area 100, the bending area 100 is located in the middle of the support layer 30. The at least one bending region 100 includes a plurality of bending regions 100, the at least one non-bending region 200 includes a plurality of non-bending regions 200, and at least one bending region 100 is spaced between adjacent non-bending regions 200. In this embodiment, the support layer 30 includes a bending region 100 and two non-bending regions 200. Referring to fig. 2, the middle position of the supporting layer 30 is a bending region 100, and the flexible display screen can be bent or folded through the bending region 100. The support layer 30 has a single-layer structure, and the support layer 30 is provided with a pattern 301 that is easily bent on the bending region 100. The supporting layer 30 is made of a relatively thick metal material, including but not limited to stainless steel, aluminum, magnesium, and liquid metal. The thickness of the support layer 30 is between 0.02 mm and 1 mm. The metal elongation of the support layer 30 at the bending region 100 is more than 10%, and the support layer 30 located at the bending region 100 is stretched and recovered along with the length change of the flexible display screen in the bending process. Because the supporting layer 30 has good ductility, the supporting layer 30 can give up the space of the length change of the flexible display screen, and does not add extra stress strain to the flexible display screen, and the supporting layer 30 is thick in thickness and high in strength, has good strength and support to the flexible display screen when being unfolded, is convenient to be assembled with a complete machine, changes the flexible display screen into a hard screen which is assembled as well as an LCD screen, and does not need to be replaced, and extra equipment investment is increased. With the special design of the pattern 301, the elongation of the support layer is increased by at least 10 times, a space for releasing stress of the flexible display screen is provided, the relative dislocation amount between the support layer and an upper layer material is reduced, the risk of falling off is reduced, the bending performance and the recovery performance are good, the problems of middle crease and reduction of wrinkles, arching and creases can be reduced, and the support strength is also high.
Specifically, as shown in fig. 3, a detailed view of the pattern of the support layer provided for this implementation. Because the supporting plate of the stainless steel metal with no other treatment on the whole surface is used in the prior art, the supporting plate is high in rigidity, is not easy to stretch when being bent, cannot follow the upper film layer to perform dislocation, and causes unilateral dislocation of the upper film layer, so that the relative dislocation quantity is large, and the phenomenon of wire drawing and adhesion force reduction after OCA glue fatigue is bent for multiple times easily causes falling off. As shown in fig. 3, in this embodiment, the pattern 301 that is easily bent is disposed at the bending region of the support layer 30, and the pattern 301 is a hexagonal hole. In the supporting layer 30 provided in this embodiment, holes are designed in the bending region from the original whole metal or other materials, the holes are arranged in regular hexagon, and are similar to a honeycomb structure, so that the supporting layer has excellent elongation performance, and meanwhile, due to the staggered arrangement of the patterns 301, the rib plates of the holes are rapidly restored to the original shape when the acting force disappears or becomes small due to the influence of the strength of the metal material around the holes.
As shown in fig. 4, a schematic diagram of a dimensional relationship of the pattern 301 of the support layer 30 is shown. In this embodiment, the deformation amount required for a single hole can be calculated according to the required elongation of the support layer 30, and then the hexagonal height h and the rib width d of the hole can be obtained according to the deformation amount of the hole.
According to the flexible display screen provided by the embodiment of the invention, the middle support formed by compounding the metal plate and the support plate of the flexible display screen in the prior art is simplified into only one special support layer, the special support layer is provided with the pattern which is easy to bend on the bending area, and the pattern holes in the hexagonal shape are designed, so that the support layer can be stretched, extended and restored synchronously along with the length change of the flexible display screen in the bending process, the space for the length change of the flexible display screen is provided, additional stress strain is not added to the flexible display screen, the relative dislocation quantity between the support layer and an upper layer material is reduced, and the risk of falling off of the display layer is reduced. And the supporting layer in this embodiment is thick, and intensity is higher, has better intensity and support to flexible display screen when expanding, and the equipment collocation with the complete machine is convenient, becomes flexible display screen and assembles like good with the stereoplasm screen like LCD screen with the rigid display screen, need not to change the equipment of flexible equipment and increases extra equipment investment yet, reduces the cost of input. The flexible display screen provided by the embodiment of the invention has stronger rigidity, and can be bent in a certain radian when the display screen is folded or curled, so that folds, arches or creases caused by folding or curling are avoided, and the visual experience of a user is improved.
The flexible display screen provided by the embodiment of the present application is described in detail above, and a specific example is applied in the description to explain the principle and the implementation of the present application, and the description of the above embodiment is only used to help understanding the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A flexible display screen, comprising:
the front frame is of a sectional structure;
the display module is a flexible foldable display module;
the supporting layer is arranged on the back of the display module to increase the rigidity of the display screen;
the back plate assembly is arranged below the supporting layer, and the supporting layer, the display module and the front frame are sequentially stacked on the back plate assembly;
wherein the support layer and the backplate assembly comprise at least one bending region and at least one non-bending region; the bending area can be bent or bent relative to the non-bending area so as to bend or bend the flexible display screen; and the support layer is provided with a pattern which is easy to bend.
2. The flexible display of claim 1, wherein the thickness of the inflection region is no greater than the thickness of the non-inflection region.
3. The flexible display screen of claim 1, wherein the support layer is provided with a pattern which is easy to bend on the bending area, and the pattern is a hexagonal hole.
4. The flexible display of claim 1, wherein the support layer is a metal plate.
5. The flexible display screen of claim 4, wherein the material of the support layer comprises stainless steel, metallic aluminum, metallic magnesium, and liquid metal.
6. A flexible display screen according to claim 5 wherein the support layer has a thickness of between 0.02 mm and 1 mm.
7. The flexible display screen of claim 6, wherein the metal elongation of the support layer at the bending region is 10% or more, and the support layer at the bending region stretches and recovers with the length change of the flexible display screen during the bending process.
8. The flexible display of claim 1, wherein when the at least one bending region comprises one bending region, the bending region is located in the middle of the support layer.
9. The flexible display screen of claim 1, wherein the at least one bending region comprises a plurality of bending regions, the at least one non-bending region comprises a plurality of non-bending regions, and at least one bending region is spaced between adjacent non-bending regions.
10. The flexible display screen of claim 1, wherein the support layer is bonded to the back of the display module by a foldable bonding layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010782374.9A CN111986571A (en) | 2020-08-06 | 2020-08-06 | Flexible display screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010782374.9A CN111986571A (en) | 2020-08-06 | 2020-08-06 | Flexible display screen |
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| CN202010782374.9A Pending CN111986571A (en) | 2020-08-06 | 2020-08-06 | Flexible display screen |
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Cited By (17)
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| CN112509466A (en) * | 2020-11-27 | 2021-03-16 | 武汉华星光电半导体显示技术有限公司 | Foldable display panel and foldable display device |
| CN112614433A (en) * | 2020-12-29 | 2021-04-06 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel and flexible display device |
| CN113066373A (en) * | 2021-03-25 | 2021-07-02 | 京东方科技集团股份有限公司 | Flexible supporting layer and flexible display device |
| CN113079237A (en) * | 2021-04-19 | 2021-07-06 | 维沃移动通信有限公司 | Display screen assembly and electronic equipment |
| CN113257124A (en) * | 2021-04-29 | 2021-08-13 | 荣耀终端有限公司 | Display screen module and electronic equipment |
| CN113539111A (en) * | 2021-07-28 | 2021-10-22 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN113744642A (en) * | 2021-08-23 | 2021-12-03 | 武汉华星光电半导体显示技术有限公司 | Support backplate and display panel |
| CN114596782A (en) * | 2022-03-17 | 2022-06-07 | 武汉华星光电半导体显示技术有限公司 | Folding screen equipment and flexible display module thereof |
| CN114724455A (en) * | 2021-01-05 | 2022-07-08 | 元太科技工业股份有限公司 | flexible display panel |
| CN115223444A (en) * | 2021-04-20 | 2022-10-21 | 北京小米移动软件有限公司 | Flexible display screen and electronic equipment |
| CN115240561A (en) * | 2022-08-25 | 2022-10-25 | 昆山国显光电有限公司 | Display panel, display panel control method and display device |
| WO2022262034A1 (en) * | 2021-06-15 | 2022-12-22 | 武汉华星光电半导体显示技术有限公司 | Flexible display module |
| WO2023160130A1 (en) * | 2022-02-28 | 2023-08-31 | Oppo广东移动通信有限公司 | Support plate, flexible display screen and electronic device |
| US11850833B2 (en) | 2021-01-05 | 2023-12-26 | E Ink Holdings Inc. | Flexible display panel |
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| US12085991B2 (en) | 2021-07-28 | 2024-09-10 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display panel and display device including the same |
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