CN108538198B - Protective film, display panel and display device - Google Patents
Protective film, display panel and display device Download PDFInfo
- Publication number
- CN108538198B CN108538198B CN201810410591.8A CN201810410591A CN108538198B CN 108538198 B CN108538198 B CN 108538198B CN 201810410591 A CN201810410591 A CN 201810410591A CN 108538198 B CN108538198 B CN 108538198B
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- Prior art keywords
- layer
- display substrate
- infrared
- protective film
- upper protective
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- 230000001681 protective effect Effects 0.000 title claims abstract description 55
- 239000010410 layer Substances 0.000 claims abstract description 81
- 239000000758 substrate Substances 0.000 claims abstract description 74
- 230000000903 blocking effect Effects 0.000 claims abstract description 54
- 239000011241 protective layer Substances 0.000 claims abstract description 52
- 238000005520 cutting process Methods 0.000 claims abstract description 27
- 230000004888 barrier function Effects 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 30
- 239000012790 adhesive layer Substances 0.000 claims description 24
- 239000003292 glue Substances 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 5
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims description 3
- 229910001930 tungsten oxide Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
- B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to the technical field of display, and discloses a protective film, a display panel and a display device, wherein the protective film is used for covering a display substrate and comprises the following components: the upper protective layer is arranged on the display substrate, the infrared blocking layer is arranged between the upper protective layer and the display substrate, the projection of the infrared blocking layer on the display substrate covers the projection of the cutting area of the upper protective layer on the display substrate, the infrared blocking layer between the upper protective layer and the display substrate has a certain blocking effect on laser energy, when the protective film is subjected to laser half-cutting, the upper protective layer of the protective film can be completely cut by adjusting proper laser energy, so that the protective film which needs to be torn off is smoothly torn off without affecting the reserved protective film, the laser energy is prevented from being diffused to the display substrate, and other film layers on the display substrate are prevented from being damaged.
Description
Technical Field
The invention relates to the technical field of display, in particular to a protective film, a display panel and a display device.
Background
At present, in order to improve production efficiency, the whole protective film of a substrate needs to be attached in the current flexible process flow, and when a subsequent process is carried out, the upper protective film of the Bonding area is subjected to half-cutting by using laser cutting, so that the upper protective film of the Bonding area is taken down. However, when the laser half-cutting is performed, the factors such as unstable laser energy, different film layers, uneven cutting platform and the like can cause the film layer at the half-cutting position to be cut too deeply, so that the lead wire in the frame area is cut off or the film layer at the position is separated to cause reliability failure, or the cutting is too shallow, so that the protective film cannot be cut off, and the situation that the protective film of the effective display area is lifted or even lifted off when the film is automatically lifted off can be caused.
Disclosure of Invention
The invention provides a protective film, a display panel and a display device, wherein an infrared blocking layer positioned between an upper protective layer and a display substrate has a certain blocking effect on laser energy, when the protective film is subjected to laser half-cutting, the upper protective layer of the protective film can be completely cut, the protective film which needs to be torn off can be smoothly torn off without affecting the reserved protective film, the laser energy can not be diffused to the display substrate, and other film layers on the display substrate are prevented from being damaged.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a protective film for covering a display substrate, comprising: the display device comprises an upper protective layer arranged on a display substrate and an infrared blocking layer arranged between the upper protective layer and the display substrate, wherein the projection of the infrared blocking layer on the display substrate covers the projection of a cutting area of the upper protective layer on the display substrate.
The protective film is covered on the display substrate and comprises an upper protective layer arranged on the display substrate and an infrared barrier layer arranged between the display substrate and the upper protective layer, wherein the projection of the infrared barrier layer on the display substrate covers the projection of a cutting area of the upper protective layer on the display substrate, when the protective film corresponding to a frame area of the display substrate needs to be removed, laser irradiates along the direction of the upper protective layer towards the infrared barrier layer when the protective film is subjected to laser half-cutting, when the laser cuts to the infrared barrier layer, the infrared barrier layer can block the laser energy to diffuse towards the display substrate further, and as the infrared barrier layer can have a certain blocking effect on the laser energy, the proper laser energy can be regulated, so that the laser can completely cut the upper protective layer and can not be transferred to the display substrate, and each film layer structure on the display substrate is protected, namely, the situation that the cut is too shallow or the cut is too deep can be avoided, the protective film which needs to be lifted off is smoothly taken off from the display substrate, the protective film which is kept on the display substrate is not influenced, the protective film can not be well removed, and the protective film on the display substrate can be prevented from damaging the display substrate, and the display substrate can be prevented from damaging the display substrate.
In the protective film, the infrared barrier layer between the upper protective layer and the display substrate has a certain blocking effect on laser energy, when the protective film is subjected to laser half-cutting, the upper protective layer of the protective film can be completely cut by adjusting proper laser energy, so that the protective film which needs to be lifted off is smoothly lifted off without affecting the reserved protective film, the laser energy is prevented from being diffused to the display substrate, and other film layers on the display substrate are prevented from being damaged.
Preferably, the upper protective layer is bonded to the display substrate through a glue layer.
Preferably, an infrared blocking material is doped in the glue layer to form the infrared blocking layer.
Preferably, the infrared blocking material is fully doped in the adhesive layer; or,
and only the part of the adhesive layer opposite to the cutting area of the upper protective layer is doped with an infrared blocking material.
Preferably, the infrared blocking layer includes a film layer doped with an infrared blocking material, and the infrared blocking layer is disposed between the adhesive layer and the display substrate, or the infrared blocking layer is disposed between the adhesive layer and the upper protective layer.
Preferably, the projection of the infrared blocking layer on the display substrate coincides with the projection of the upper protective layer on the display substrate; or,
the projection of the infrared blocking layer on the display substrate is overlapped with the projection of the cutting area of the upper protective layer on the display substrate.
Preferably, the infrared blocking material comprises an infrared insulating material or an infrared reflecting material.
Preferably, the infrared insulating material comprises nano-sized multi-doped tungsten oxide.
The invention also provides a display panel, which comprises any one of the protective films provided in the technical scheme.
The invention also provides a display device which comprises any display panel provided in the technical scheme.
Drawings
Fig. 1 is a schematic structural diagram of a protective film according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another protective film according to an embodiment of the present invention;
FIG. 3 is a schematic view of another protective film according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another protective film according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another protective film according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another protective film according to an embodiment of the present invention;
icon: 1-a display substrate; a 2-infrared blocking layer; 3-an upper protective layer; 4-glue layer.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a protective film for covering a display substrate 1 includes: the display device comprises an upper protective layer 3 arranged on a display substrate 1, an infrared barrier layer 2 arranged between the upper protective layer 3 and the display substrate 1, and the projection of the infrared barrier layer 2 on the display substrate 1 covers the projection of a cutting area of the upper protective layer 3 on the display substrate 1.
Among the above-mentioned protection films, the protection film covers on the display base plate 1, including locating the upper protective layer 3 on the display base plate 1 and locating the infrared barrier layer 2 between display base plate 1 and the upper protective layer 3, wherein, the projection of the upper protective layer 3 is covered in the projection of the cutting zone on the display base plate 1 of infrared barrier layer 2 on the display base plate 1, when the protection film that corresponds to the frame region of display base plate 1 needs to be got rid of, when carrying out laser half-cutting to the protection film, the laser shines along the direction that upper protective layer 3 points to infrared barrier layer 2, when the laser cuts to infrared barrier layer 2, infrared barrier layer 2 can block laser energy further to spread to display base plate 1, because infrared barrier layer 2 can have certain barrier effect to laser energy, can adjust suitable laser energy, make laser can both cut the upper protective layer 3 completely, can not transmit to display base plate 1 again, each membrane layer structure on the protection base plate 1, namely, can avoid cutting shallow or cutting deep condition, both, can make the protection film that need to be taken off from display base plate 1 down, and can not remain smoothly and cause bad influence to display base plate 1 on the display base plate 1, can not be influenced by the protection film 1, bad influence on display base plate 1.
Among the above-mentioned protection films, the infrared barrier layer 2 located between the upper protective layer 3 and the display substrate 1 has certain blocking effect to laser energy, when the above-mentioned protection film is semi-cut by laser, adjust appropriate laser energy, can make the upper protective layer 3 of the protection film cut completely, make the protection film that needs to be uncovered take off smoothly and not influence the protection film that remains, avoid laser energy to spread to the display substrate 1 again, avoid other rete on the display substrate 1 to be damaged.
As shown in fig. 1 and 2, in the protective film, the upper protective layer 3 may be bonded to the display substrate 1 through the adhesive layer 4.
The formation manner of the infrared barrier layer 2 may be selected from various manners, for example:
formation mode one of infrared barrier layer
As shown in fig. 1 and 2, the adhesive layer 4 is doped with an infrared blocking material to form an infrared blocking layer 2. The infrared blocking material is doped in the adhesive layer 4, namely the adhesive layer 4 doped with the infrared blocking material forms the infrared blocking layer 2, so that the infrared blocking layer has a certain blocking effect on laser energy, and the infrared blocking material is directly doped with the infrared blocking material to form the infrared blocking layer 2 in the adhesive layer 4, thereby being beneficial to simplifying the integral structure of the protective film.
Specifically, the manner of doping the infrared blocking material in the adhesive layer 4 may have various options, such as:
mode one
As shown in fig. 1, the infrared blocking material is doped in the adhesive layer 4, so that the infrared blocking material can be uniformly doped in the whole adhesive layer 4, the whole adhesive layer 4 forms the infrared blocking layer 2, and the protective effect on the display substrate 1 under the protective film can be better.
Mode two
As shown in fig. 2, the portion of the adhesive layer 4 opposite to the cutting area of the upper protective layer 3 is doped with the infrared blocking material, and the portion of the adhesive layer 4 opposite to the cutting area of the upper protective layer 3 is uniformly doped with the infrared blocking material, so that a part of the adhesive layer 4 forms the infrared blocking layer 2, that is, the infrared blocking layer 2 is arranged for the cutting area of the upper protective layer 3, which can protect the display substrate 1 under the protective film, save the preparation raw materials and have better economic benefit.
Formation mode II of infrared barrier layer
As shown in fig. 3 and 4, the infrared barrier layer 2 includes a film layer doped with an infrared barrier material, that is, the infrared barrier layer 2 may be formed by a film layer doped with an infrared barrier material, and the infrared barrier layer 2 is disposed between the adhesive layer 4 and the display substrate 1, or the infrared barrier layer 2 is disposed between the adhesive layer 4 and the upper protective layer 3, where the infrared barrier layer 2 is formed by a film layer including an infrared barrier material and independent of the adhesive layer 4, that is, the infrared barrier layer 2 is formed as a single layer, so that the infrared barrier layer 2 with a better effect on blocking laser energy may be formed, and in addition, the infrared barrier layer 2 may be disposed between the adhesive layer 4 and the display substrate 1, or between the adhesive layer 4 and the upper protective layer 3.
Specifically, the above-mentioned infrared barrier layer 2 may be disposed in various ways, such as:
mode one
As shown in fig. 3 and 4, the projection of the infrared barrier layer 2 on the display substrate 1 coincides with the projection of the upper protective layer 3 on the display substrate 1, that is, the infrared barrier layer 2 is disposed on the side of the upper protective layer 3 facing the display substrate 1, so as to enhance the protection effect on the display substrate 1.
Mode two
As shown in fig. 5 and 6, the projection of the infrared blocking layer 2 on the display substrate 1 coincides with the projection of the cut region of the upper protective layer 3 on the display substrate 1. The infrared blocking layer 2 is only arranged at the position corresponding to the cutting area of the upper protective layer 3, so that the laser energy can be blocked when the protective film is subjected to laser half-cutting, the preparation materials are saved, the preparation cost of the protective film is reduced, and the economic benefit is good.
Specifically, the infrared blocking material comprises an infrared heat insulation material or an infrared reflection material, wherein the infrared heat insulation material is an infrared heat insulation material, has an absorption effect on laser energy, has a heat insulation effect, prevents the laser energy from being transmitted to the display substrate 1, and has a certain blocking effect on the laser energy; the infrared reflecting material is an infrared reflecting material, and has a reflecting effect on laser light, so that the laser light is prevented from being further transmitted to the display substrate 1, and the laser energy is prevented from being blocked.
Specifically, the infrared insulating material comprises nano-multi-doped tungsten oxide.
Specifically, the upper protective layer 3 is a PET layer or a PC layer.
The invention also provides a display panel comprising any one of the protective films provided in the above embodiments.
The invention also provides a display device comprising any one of the display panels provided in the embodiment.
It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. A protective film for covering a display substrate, comprising: the display device comprises an upper protective layer arranged on a display substrate, and an infrared blocking layer arranged between the upper protective layer and the display substrate, wherein the projection of the infrared blocking layer on the display substrate covers the projection of a cutting area of the upper protective layer on the display substrate;
the upper protective layer is adhered to the display substrate through an adhesive layer;
an infrared blocking material is doped in the adhesive layer to form the infrared blocking layer.
2. The protective film of claim 1, wherein the infrared blocking material is entirely doped within the glue layer; or,
and only the part of the adhesive layer opposite to the cutting area of the upper protective layer is doped with an infrared blocking material.
3. The protective film of claim 1, wherein the infrared barrier layer comprises a film layer doped with an infrared barrier material, and the infrared barrier layer is disposed between the glue layer and the display substrate, or the infrared barrier layer is disposed between the glue layer and the upper protective layer.
4. A protective film according to claim 3, wherein the projection of the infrared barrier layer onto the display substrate coincides with the projection of the upper protective layer onto the display substrate; or,
the projection of the infrared blocking layer on the display substrate is overlapped with the projection of the cutting area of the upper protective layer on the display substrate.
5. The protective film of any one of claims 1-4, wherein the infrared blocking material comprises an infrared insulating material or an infrared reflecting material.
6. The protective film of claim 5, wherein the infrared insulating material comprises nano-doped tungsten oxide.
7. A display panel comprising the protective film according to any one of claims 1 to 6.
8. A display device comprising the display panel according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810410591.8A CN108538198B (en) | 2018-05-02 | 2018-05-02 | Protective film, display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810410591.8A CN108538198B (en) | 2018-05-02 | 2018-05-02 | Protective film, display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108538198A CN108538198A (en) | 2018-09-14 |
| CN108538198B true CN108538198B (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810410591.8A Active CN108538198B (en) | 2018-05-02 | 2018-05-02 | Protective film, display panel and display device |
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| Country | Link |
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| CN (1) | CN108538198B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599427B (en) | 2018-12-14 | 2021-05-14 | 京东方科技集团股份有限公司 | Preparation method of display substrate, display panel and display device |
| JP6803426B2 (en) * | 2019-05-14 | 2020-12-23 | 日東電工株式会社 | Laminated body and its manufacturing method |
| CN110783253B (en) * | 2019-10-31 | 2022-05-24 | 京东方科技集团股份有限公司 | Manufacturing method of display substrate, display substrate and display device |
| CN111554729B (en) * | 2020-06-05 | 2024-04-05 | 京东方科技集团股份有限公司 | Protective film module, preparation method thereof, display assembly and display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325337A (en) * | 2012-03-22 | 2013-09-25 | 乐金显示有限公司 | Flat panel display device and method of fabricating the same |
| CN105637638A (en) * | 2015-09-28 | 2016-06-01 | 京东方科技集团股份有限公司 | Manufacturing method of display substrate of display panel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943788B (en) * | 2014-04-02 | 2016-04-06 | 京东方科技集团股份有限公司 | Flexible display apparatus and method for packing thereof |
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2018
- 2018-05-02 CN CN201810410591.8A patent/CN108538198B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325337A (en) * | 2012-03-22 | 2013-09-25 | 乐金显示有限公司 | Flat panel display device and method of fabricating the same |
| CN105637638A (en) * | 2015-09-28 | 2016-06-01 | 京东方科技集团股份有限公司 | Manufacturing method of display substrate of display panel |
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| CN108538198A (en) | 2018-09-14 |
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