CN111201560B - Flexible display screen and cutting and trimming method thereof - Google Patents
Flexible display screen and cutting and trimming method thereof Download PDFInfo
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- CN111201560B CN111201560B CN201780095858.2A CN201780095858A CN111201560B CN 111201560 B CN111201560 B CN 111201560B CN 201780095858 A CN201780095858 A CN 201780095858A CN 111201560 B CN111201560 B CN 111201560B
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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
Abstract
A flexible display screen (100) and a manufacturing method thereof, the display screen (100) comprises a display assembly (30) and a flexible cover plate (50). A flexible cover sheet (50) is stacked on the display module (30). The flexible cover (50) has an ink region (51) projecting beyond the periphery of the display assembly (30). The flexible display screen (100) further comprises a laser-resistant coating (70) which is arranged on the ink area (51) of the flexible cover plate (50) and faces one side of the display assembly (30), the periphery of the display assembly (30) is cut and trimmed by laser, the laser-resistant coating (70) is formed on the ink area (51) of the flexible panel (50), and when the display assembly (30) is cut by the laser, the laser-resistant coating (70) protects the ink area (51) of the flexible panel from being burnt, so that the ink area (51) is prevented from being carbonized, changed in color and the like.
Description
Technical Field
The application relates to the field of flexible display screens, in particular to a flexible display screen and a cutting and trimming method thereof.
Background
Due to the attaching precision, the polaroids, the touch screen, the organic light-emitting device and the like of the flexible display screen are mutually staggered, and cutting and trimming are needed. At present, two cutting and trimming modes exist, wherein the first mode is to perform cutting and trimming firstly and then perform cover plate bonding; the second mode is that the cover plate is cut and trimmed after being attached. However, both of the two cutting and trimming methods have defects, and the first method is to perform external cutting before the cover plate is attached, which may cause foreign matter pollution, easily generate bubbles and the like, and reduce the yield; the second way is that the ink area of the cover plate is easily damaged by laser cutting, which causes abnormalities such as ink carbonization and color change.
Disclosure of Invention
The embodiment of the application discloses a flexible display screen and a cutting and trimming method thereof, which can improve the yield and avoid laser cutting damage.
The flexible display screen disclosed in the embodiment of the application comprises a display assembly and a flexible cover plate, wherein the flexible cover plate is stacked and arranged on the display assembly, the flexible cover plate is provided with a protruding ink area protruding out of the periphery of the display assembly, the flexible display screen is further arranged on the flexible cover plate, the ink area faces the anti-laser coating on one side of the display assembly, and the periphery of the display assembly is trimmed by laser cutting.
The cutting and trimming method for the flexible display screen comprises the following steps: providing a display assembly; providing a flexible cover plate, and attaching the flexible cover plate to the display assembly, wherein the flexible cover plate is provided with an ink area protruding out of the periphery of the display assembly; manufacturing a laser-resistant coating on one side, facing the display component, of the printing ink area; and carrying out laser cutting and trimming on the display assembly.
The cutting and trimming method for the flexible display screen comprises the following steps: providing a display assembly; providing a flexible cover plate, wherein an ink area is arranged on the periphery of the flexible cover plate; manufacturing a laser-resistant coating on the periphery of one side of the ink area; facing one side of the flexible cover plate with the laser-resistant coating to the display assembly, and attaching the flexible cover plate to the display assembly, wherein the laser-resistant coating is provided with a peripheral edge which is not shielded by the display assembly; and carrying out laser cutting and trimming on the display assembly.
The flexible display screen and the cutting and trimming method thereof form the laser-resistant coating in the ink area of the flexible panel, and the laser-resistant coating protects the ink area of the flexible panel from being burnt during laser cutting of the display assembly, so that the abnormity of carbonization, color change and the like in the ink area is avoided.
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 embodiments will be briefly described 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 without creative efforts.
Fig. 1A is a schematic cross-sectional view of a flexible display screen before cutting in an embodiment of the present application.
Fig. 1B is a schematic cross-sectional view of a flexible display screen after being cut according to an embodiment of the present application.
Fig. 2A is a schematic cross-sectional view of a flexible display screen in another embodiment of the present application before cutting.
Fig. 2B is a schematic cross-sectional view of a flexible display screen after being cut according to another embodiment of the present application.
Fig. 3A is a schematic cross-sectional view of a flexible display screen in yet another embodiment of the present application before cutting.
Fig. 3B is a schematic cross-sectional view of a flexible display screen after being cut according to another embodiment of the present application.
Fig. 4A is a schematic view of a laser-resistant coating in an embodiment of the present application.
Fig. 4B is a schematic illustration of a laser-resistant coating in another embodiment of the present application.
Fig. 4C is a schematic illustration of a laser-resistant coating in yet another embodiment of the present application.
Fig. 5 is a schematic flow chart illustrating a cutting and trimming method for a flexible display screen according to an embodiment of the present application.
Fig. 6 is a schematic flow chart illustrating a method for cutting and trimming a flexible display screen according to another embodiment of the present application.
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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the 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.
Fig. 1A and fig. 1B are schematic cross-sectional views of a flexible display screen 100 according to an embodiment of the present application. It is understood that the flexible display 100 is applied to a terminal. The terminal can be a mobile phone, a tablet computer, a notebook computer, and can also be applied to various terminals which need to apply a display screen, such as smart homes.
The flexible display screen 100 includes a flexible substrate 10, a display assembly 30, and a flexible cover sheet 50. The display assembly 30 is laminated on the flexible substrate 10. The display assembly 30 is laminated. The flexible cover 50 is laminated on the display assembly 30. The flexible substrate 10 is approximately the same size as the display assembly 30. The flexible cover 50 has a size larger than the flexible substrate 10 and the display assembly 30. The portion of the periphery of the flexible cover plate 50 protruding out of the display assembly 30 forms an ink area 51.
Specifically, the flexible substrate 10 may be arbitrarily bent. The material of the flexible substrate 10 may be polyethylene naphthalate, polyethylene terephthalate, polyimide resin, or the like. It is understood that in one embodiment, the flexible substrate 10 may be omitted.
In particular, the flexible cover plate 50 is a transparent film.
Specifically, in the present embodiment, the display assembly 30 includes at least an Organic Light-Emitting Diode (OLED) 31 and a polarizing layer (Polarizer) 33. The organic electroluminescent device 31 may be plated on the flexible substrate 10 by using a mask vacuum process. The organic electroluminescent device 31 includes a plurality of pixel units (not shown) in an array, each pixel unit including at least two pixels of different colors, so that the organic electroluminescent device 31 can display a color image. The polarizing layer 33 is stacked on the organic electroluminescent device 31. The flexible cover 50 is laminated on the polarizing layer 33. The light emitted from the organic electroluminescent device 31 is polarized by the polarizing layer 33 and then emitted.
Referring to fig. 2A and fig. 2B, in an embodiment, the display device 30' further includes a Touch Panel (TP) 35. The touch layer 35 is stacked on the organic electroluminescent device 31. The polarizing layer 33 is stacked on the touch layer 35. The display element 30' thus has a touch functionality.
Referring to fig. 3A and 3B together, in an embodiment, the display assembly 30 ″ further includes a first adhesive layer 32. The first glue layer 32 is laminated on the organic electroluminescent device 31. The touch layer 35 is stacked on the first adhesive layer 32. It is understood that the first Adhesive layer 32 may be an Optical Clear Adhesive (OCA) which is colorless and transparent, has a light transmittance of 90% or more, and has good Adhesive strength. It is understood that the first adhesive layer 32 may also be other high light transmittance cement materials, such as gutta percha.
Specifically, in one embodiment, the display assembly 30 further includes a second adhesive layer 34. The second glue layer 34 is stacked on the polarizing layer 33. The flexible cover plate 50 is laminated on the second glue layer 34. It is understood that the second adhesive layer 34 is the same as the first adhesive layer 32.
Specifically, in one embodiment, the display assembly 30 further includes a thin film transistor layer (not shown). The thin film transistor layer is stacked between the organic electroluminescent device 31 and the flexible substrate 10.
It is understood that, in an embodiment, the display assembly 30 may further include other layers, for example, a third adhesive layer (not shown) stacked between the polarizing layer 33 and the touch layer 35.
It is understood that, in one embodiment, the number of the organic electroluminescent device 31, the polarizing layer 33, the touch layer 35, and the thin film transistor layer is not limited to one layer, but may be two or more layers.
It is understood that, in one embodiment, the display assembly 30 includes one or more of the organic electroluminescent device 31, the polarizing layer 33, the touch layer 35, and the thin film transistor layer. In general, the display assembly 30 may be a laminate, and may include all or part of the elements for realizing a flexible display.
The flexible display screen 100 further includes an anti-laser coating 70 disposed on a side of the ink region 51 adjacent to the display assembly 30. In this embodiment, the anti-laser coating 70 is formed on the ink area 51 of the flexible cover plate 50 before the flexible cover plate 50 is attached to the display assembly 30. It is understood that in other embodiments, the anti-laser coating 70 is formed on the side of the ink region 51 of the flexible cover plate 50 near the display assembly 30 after the flexible cover plate 50 is attached to the display assembly 30.
Specifically, referring to fig. 4A together, the laser-resistant coating 70 covers the ink area 51 completely. Referring also to fig. 4B, the anti-laser coating 70 may also cover one side of the ink region 51. Referring also to fig. 4C, the anti-laser coating 70 may also cover a portion of one side of the ink region 51. It can be understood that the laser-resistant coating 70 may cover the corresponding portion of the ink region 51 as required by the path or pattern of the laser cutting.
Specifically, the laser-resistive coating 70 is made of a laser-resistive material including at least one of aluminum oxide, boron nitride, silicon carbide, zirconium oxide, and silicon oxide.
Specifically, the laser-resistant material is in a granular or powder form, and when the laser-resistant coating 70 is manufactured, the laser-resistant material and the silicone resin are mixed and heated to be fused together, then the fused material is printed on the side of the ink area 51 facing the display assembly 30 in a mesh printing manner, and finally the laser-resistant coating 70 is baked at a temperature of about 150 ℃ to be cured. It is understood that a coagulant may also be added to the silicone resin so that the laser-resistant coating 70 may also be cured without baking. The thickness of the laser-resistant coating 70 can be set according to actual needs, for example, 2 mm. In general, the laser-resistant coating 70 can resist strong laser for more than 10 seconds, and in the actual cutting process, the time for cutting the same position by the laser is within 10 seconds, so that the laser-resistant coating 70 can effectively protect the ink area 51 from being burnt. In addition, the anti-laser effect of the anti-laser coating 70 is different according to different components, and the better the specific anti-laser effect is, the poorer the toughness is, so that a compromise can be made between the anti-laser effect and the toughness during actual material selection.
It should be noted that, due to the limitation of the attachment precision, the display assembly 30 itself is in a stacked staggered form, and the periphery of the flexible substrate 10 and the display assembly 30 is also in a stacked staggered form after the flexible substrate 10 and the display assembly 30 are attached, for this reason, after the flexible substrate 10, the display assembly 30 and the flexible cover plate 50 are attached, the periphery of the flexible substrate 10 and the display assembly 30 is cut by laser, so that the periphery of the flexible substrate 10 and the display assembly 30 are aligned, and the laser-resistant coating 70 protects the ink area 51 from being burned by laser in the laser cutting process, thereby avoiding abnormalities such as carbonization of the ink area 51, color change and the like.
Fig. 5 is a flowchart illustrating a method for cutting and trimming a flexible display panel according to an embodiment of the present application. The cutting and trimming method is applied to the flexible display screen 100, and the execution sequence is not limited to the sequence shown in fig. 5. The method comprises the following steps:
in step S501, a display module 30 is provided. Specifically, an organic electroluminescent device 31 is provided, and a polarizing layer 33 is fabricated on the organic electroluminescent device 31 to form the display assembly 30.
Specifically, as a preferred embodiment, a touch layer 35 is first fabricated on the organic electroluminescent device 31, and then a polarizing layer 33 is fabricated on the touch layer 35 to form the display assembly 30.
Specifically, as a preferred embodiment, a first glue layer 32 is fabricated on the organic electroluminescent device 31; the touch layer 33 is fabricated on the first adhesive layer 32.
Step S502, providing a flexible cover 50, and attaching the flexible cover 50 to the display assembly 30, where the flexible cover 50 has an ink area 51 protruding out of the periphery of the display assembly 30.
Specifically, as a preferred embodiment, a second adhesive layer 34 is formed on the polarizing layer 35, and the second adhesive layer 34 is attached to the flexible cover plate 50.
In step S503, a laser-resistant coating 70 is formed on the side of the ink area 51 facing the display assembly 30.
Specifically, the laser-resistant coating 70 is correspondingly formed on the side of the ink area 51 facing the display assembly 30 according to the path or pattern of the laser cutting. The laser-resistant coating 70 is made of a laser-resistant material including at least one of aluminum oxide, boron nitride, silicon carbide, zirconia, and silicon oxide.
Step S504, performing laser cutting and trimming on the display assembly 30, wherein the laser-resistant coating 70 protects the ink area 51 from being burned by laser in the laser cutting process, so as to avoid abnormalities such as carbonization of the ink area 51, color change and the like.
Fig. 6 is a flowchart illustrating a method for cutting and trimming a flexible display screen according to another embodiment of the present application. The cutting and trimming method is applied to the flexible display screen 100, and the execution sequence is not limited to the sequence shown in fig. 6. The method comprises the following steps:
in step S601, a display module 30 is provided. Specifically, an organic electroluminescent device 31 is provided, and a polarizing layer 33 is fabricated on the organic electroluminescent device 31 to form the display assembly 30.
Specifically, as a preferred embodiment, a touch layer 35 is first fabricated on the organic electroluminescent device 31, and then a polarizing layer 33 is fabricated on the touch layer 35 to form the display assembly 30.
Specifically, as a preferred embodiment, a first glue layer 32 is fabricated on the organic electroluminescent device 31; the touch layer 33 is fabricated on the first adhesive layer 32.
Step S602, providing a flexible cover 50, wherein an ink area 51 is disposed on a periphery of the flexible cover 50.
Step S603, forming a laser-resistant coating 70 on the periphery of one side of the ink region 51. Specifically, the laser-resistant coating 70 is correspondingly formed on the side of the ink area facing the display component according to the path or pattern of the laser cutting. The laser-resistant coating 70 is made of a laser-resistant material including at least one of aluminum oxide, boron nitride, silicon carbide, zirconia, and silicon oxide. The laser-resistant coating 70 is prepared by the following steps: mixing the laser-resistant material and the organic silicon resin, heating to fuse the laser-resistant material and the organic silicon resin together, printing the fused material on one side of the ink area facing the display assembly 30 in a mesh printing mode, and curing the laser-resistant coating 70.
Step S604, facing the side of the flexible cover 50 having the laser-resistant coating 70 to the display assembly 30, and attaching the flexible cover 50 to the display assembly 30, wherein the laser-resistant coating 70 has a peripheral edge that is not covered by the display assembly 30.
Step S605, performing laser cutting and trimming on the display component 30, wherein the laser-resistant coating 70 protects the ink area 51 from being burned by laser in the laser cutting process, so as to avoid abnormalities such as carbonization and color change of the ink area 51.
The flexible display screen and the cutting and trimming method thereof form the laser-resistant coating in the ink area of the flexible panel, and the laser-resistant coating protects the ink area of the flexible panel from being burnt during laser cutting of the display assembly, so that the abnormity of carbonization, color change and the like in the ink area is avoided.
The foregoing is a preferred embodiment of the present application and it should be noted that modifications and embellishments could be made by those skilled in the art without departing from the principle of the present application and these are considered to be within the scope of the present application.
Claims (13)
1. The utility model provides a flexible display screen, includes display module and flexible apron, its characterized in that: the flexible cover plate is arranged on the display assembly in a stacked mode, the flexible cover plate is provided with an ink area protruding out of the periphery of the display assembly, the flexible display screen further comprises a laser-resistant coating arranged on the ink area of the flexible cover plate and facing one side of the display assembly, the periphery of the display assembly is trimmed by laser cutting,
the laser-resistant coating is made of a laser-resistant material, the laser-resistant material comprises at least one of aluminum oxide, boron nitride, silicon carbide, zirconium oxide and silicon oxide, and when the laser-resistant coating is manufactured, the laser-resistant material and organic silicon resin are mixed and heated to be fused together, and then the laser-resistant coating is printed on one side, facing the display assembly, of the ink area in a mesh printing mode and is solidified to form the laser-resistant coating.
2. The flexible display of claim 1, wherein the laser-resistant coating is disposed on a side of the ink area facing the display component according to a laser-cut path or pattern.
3. The flexible display screen of claim 1, wherein the display assembly is a stack of layers, the display assembly including at least an organic electroluminescent device and a polarizing layer, the polarizing layer being stacked on the organic electroluminescent device, the flexible cover sheet being stacked on the polarizing layer.
4. The flexible display screen of claim 3, wherein the display assembly comprises a touch layer, the touch layer is laminated to the organic electroluminescent device, and the polarizing layer is laminated to the touch layer.
5. The flexible display screen of claim 4, further comprising a first glue layer disposed between the touch layer and the organic electroluminescent device.
6. A cutting and trimming method of a flexible display screen comprises the following steps:
providing a display assembly;
providing a flexible cover plate, and attaching the flexible cover plate to the display assembly, wherein the flexible cover plate is provided with an ink area protruding out of the periphery of the display assembly;
manufacturing a laser-resistant coating on one side, facing the display component, of the printing ink area;
the display assembly is cut and trimmed by laser,
the laser-resistant coating is made of a laser-resistant material, the laser-resistant material comprises at least one of aluminum oxide, boron nitride, silicon carbide, zirconium oxide and silicon oxide,
the step of manufacturing the anti-laser coating on the side, facing the display component, of the ink area specifically comprises the following steps of:
mixing the laser-resistant material and the organic silicon resin, and heating to fuse the laser-resistant material and the organic silicon resin together;
printing on one side, facing the display assembly, of the ink area in a mesh printing mode; and curing the laser-resistant coating.
7. The cutting and trimming method according to claim 6, wherein the step of "making a laser-resistant coating on the side of the ink area facing the display component" is specifically:
and correspondingly manufacturing a laser-resistant coating on one side, facing the display component, of the ink area according to the path or the pattern of the laser cutting.
8. The cutting and trimming method according to claim 6, wherein the step of providing a display assembly comprises:
providing an organic electroluminescent device; and
and manufacturing a polarizing layer on the organic electroluminescent device to form the display component.
9. The method for cutting and trimming according to claim 8, wherein the step of fabricating a polarizing layer on the organic electroluminescent device to form the display component is specifically:
manufacturing a touch layer on the organic electroluminescent device;
and manufacturing a polarizing layer on the touch layer to form the display assembly.
10. A cutting and trimming method of a flexible display screen comprises the following steps:
providing a display assembly;
providing a flexible cover plate, wherein an ink area is arranged on the periphery of the flexible cover plate;
manufacturing a laser-resistant coating on the periphery of one side of the ink area;
facing one side of the flexible cover plate with the laser-resistant coating to the display assembly, and attaching the flexible cover plate to the display assembly, wherein the laser-resistant coating is provided with a peripheral edge which is not shielded by the display assembly; and
the display assembly is cut and trimmed by laser,
the laser-resistant coating is made of a laser-resistant material, the laser-resistant material comprises at least one of aluminum oxide, boron nitride, silicon carbide, zirconium oxide and silicon oxide,
the step of manufacturing the laser-resistant coating on the periphery of one side of the ink area specifically comprises the following steps:
mixing the laser-resistant material and the organic silicon resin, and heating to fuse the laser-resistant material and the organic silicon resin together;
printing on the periphery of one side of the ink area in a mesh printing mode; and
curing the laser-resistant coating.
11. The cutting and trimming method according to claim 10, wherein the step of "making a laser-resistant coating on the periphery of one side of the ink area" includes:
and manufacturing a laser-resistant coating on the periphery of one side of the ink area according to the path or the pattern of laser cutting.
12. The method for cutting and trimming according to claim 10, wherein the step of providing a display assembly comprises:
providing an organic electroluminescent device; and
and manufacturing a polarizing layer on the organic electroluminescent device to form the display component.
13. The method for cutting and trimming according to claim 12, wherein the step of fabricating a polarizing layer on the organic electroluminescent device to form the display component is specifically:
manufacturing a touch layer on the organic electroluminescent device;
and manufacturing a polarizing layer on the touch layer to form the display assembly.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/110556 WO2019090729A1 (en) | 2017-11-10 | 2017-11-10 | Flexible display screen and cutting and deflashing method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111201560A CN111201560A (en) | 2020-05-26 |
| CN111201560B true CN111201560B (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780095858.2A Active CN111201560B (en) | 2017-11-10 | 2017-11-10 | Flexible display screen and cutting and trimming method thereof |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN111201560B (en) |
| TW (1) | TW201918317A (en) |
| WO (1) | WO2019090729A1 (en) |
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| CN110634399B (en) * | 2019-08-22 | 2020-12-25 | 武汉华星光电半导体显示技术有限公司 | Flexible cover plate, flexible display device and manufacturing method of flexible cover plate |
| CN113042901A (en) * | 2019-12-10 | 2021-06-29 | 北京小米移动软件有限公司 | Manufacturing method of metal shell sound guide hole, metal shell and electronic device |
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| CN106659031A (en) * | 2016-12-29 | 2017-05-10 | 维沃移动通信有限公司 | Curved cover plate of mobile terminal and coloring method of curved cover plate |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201918317A (en) | 2019-05-16 |
| WO2019090729A1 (en) | 2019-05-16 |
| CN111201560A (en) | 2020-05-26 |
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