CN212694198U - UV photosensitive film and display device - Google Patents
UV photosensitive film and display device Download PDFInfo
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- CN212694198U CN212694198U CN202021372162.5U CN202021372162U CN212694198U CN 212694198 U CN212694198 U CN 212694198U CN 202021372162 U CN202021372162 U CN 202021372162U CN 212694198 U CN212694198 U CN 212694198U
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Abstract
The utility model discloses a UV photosensitive film and display device, UV photosensitive film are used for being fixed to display module assembly's solidification face, and UV photosensitive film includes the photosensitive layer, and the photosensitive layer is set up to the outward appearance state that can respond to the ultraviolet irradiation in order to change the photosensitive layer. In the utility model, the UV sensitive film is fixed on the curing surface and carries out synchronous UV curing with the curing surface of the display module; the photosensitive layer on the UV photosensitive film senses ultraviolet light irradiation and changes the appearance state, so that whether the appearance state of the UV photosensitive film changes or not can be judged, and whether the curing surface of the display module is completely cured or not can be intuitively judged.
Description
Technical Field
The utility model relates to a display device equipment technical field, concretely relates to UV photosensitive film and display device.
Background
The current display device generally includes an LCM (liquid crystal display Module), and in an assembling process of the LCM, a cover plate and an LCM semi-finished product need to be bonded together by an OCA (Optical Clear Adhesive) or an OCR (Optical Clear Resin), and then cured after being irradiated by UV (Ultraviolet ray), so that the bonding force is enhanced, and bubble-free rebound is ensured.
However, since OCA/OCR is colorless and transparent, it is not possible to visually determine whether or not the curing is complete in the UV curing process, and thus there is a tendency that no UV, incomplete UV, or other adverse conditions occur, which affects the product reliability of the limiter device.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a UV photosensitive film and display device of the UV solidification condition that can audio-visual sensing display device.
In order to achieve the above object, the utility model provides a UV photosensitive film for display module assembly, UV photosensitive film be used for fixed extremely on display module assembly's the solidification face, UV photosensitive film includes the photosensitive layer, the photosensitive layer is set up to can respond to the ultraviolet irradiation in order to change the outward appearance state of photosensitive layer.
Optionally, the photosensitive layer is configured to be capable of converting from a first color state to a second color state upon sensing ultraviolet light irradiation.
Optionally, the photosensitive layer is made of a material including a polyurethane resin and an alkylphenol and ethylene oxide polymer.
Optionally, the UV-sensitive film further includes a substrate layer stacked with the photosensitive layer.
Optionally, the base material layer is made of a polyimide film.
Optionally, the UV sensitive film further includes an adhesive layer disposed on one side of the photosensitive layer, and the adhesive layer is used to adhere and fix to the curing surface of the display module.
Optionally, the adhesive layer is made of an acrylic adhesive layer.
Optionally, the UV sensitive film further includes a substrate layer and an adhesive layer respectively disposed on two opposite sides of the photosensitive layer;
the thickness sum of the substrate layer, the photosensitive layer and the bonding layer is 70-80 μm.
Furthermore, in order to achieve the above object, the present invention also provides a display device, including:
the display module is provided with a curing surface for ultraviolet curing; and the number of the first and second groups,
the UV photosensitive film is fixed to the curing surface of the display module and comprises a photosensitive layer, and the photosensitive layer is set to be capable of sensing ultraviolet irradiation so as to change the appearance state of the photosensitive layer.
Optionally, the display module includes:
a main body structure having a display surface;
a cover plate adhesively secured to the display surface by an optical adhesive; and the number of the first and second groups,
the flexible circuit board is arranged on one side of the main body structure and is provided with a curing surface which is arranged in the same direction as the display surface.
In the technical scheme provided by the utility model, the UV photosensitive film is used for being fixed on the curing surface and carrying out synchronous UV curing with the curing surface of the display module; the photosensitive layer on the UV photosensitive film senses ultraviolet light irradiation and changes the appearance state, so that whether the appearance state of the UV photosensitive film changes or not can be judged, and whether the curing surface of the display module is completely cured or not can be intuitively judged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 the structures shown in the drawings without creative efforts.
Fig. 1 is an exploded schematic view of a display module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of a UV sensitive film according to the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | UV |
211 | |
| 110 | |
220 | |
| 120 | |
230 | Optical adhesive |
| 130 | |
240 | |
| 200 | |
241 | Cured |
| 210 | Main body structure |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely 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.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The current display device generally includes an LCM (liquid crystal display Module), and in an assembling process of the LCM, a cover plate and an LCM semi-finished product need to be bonded together by an OCA (Optical Clear Adhesive) or an OCR (Optical Clear Resin), and then cured after being irradiated by UV (Ultraviolet ray), so that the bonding force is enhanced, and bubble-free rebound is ensured.
However, since OCA/OCR is colorless and transparent, it is not possible to visually determine whether or not the curing is complete in the UV curing process, and thus there is a tendency that no UV, incomplete UV, or other adverse conditions occur, which affects the product reliability of the limiter device.
The utility model provides a display device, display device does not limit to relevant equipment and products such as cell-phone, panel computer, and the following explains for convenient understanding all uses display device as the cell-phone for the example.
Referring to fig. 1, the display module 200 generally includes a main body structure 210 and a cover plate 220, and the main body structure 210 has a display surface 211. In the installation process of the display module 200, the cover plate 220 needs to be attached to the display surface 211 of the main body structure 210 through an optical adhesive 230; the optical adhesive 230 is, for example, OCA/OCR, which is generally used for bonding transparent optical elements, and is colorless and transparent, and has a light transmittance of 90% or more. The optical adhesive 230 generally needs to be cured under ultraviolet light, and the bonding capability of the cured optical adhesive 230 is greatly enhanced.
The display module 200 generally further includes a flexible circuit board 240, wherein the flexible circuit board 240 is generally disposed to protrude from one side of the main body structure 210 when the display module 200 is UV-cured, and has a first outer surface exposed in the same direction as the display surface 211, and the first outer surface also needs to be UV-cured.
The display device further includes a UV sensitive film 100, and since the main inventive point of the present invention is to provide a UV sensitive film 100 for the display module 200, the UV sensitive film 100 will be mainly described with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 2, in the present embodiment, the UV-sensitive film 100 is fixed on the curing surface 241 of the display module 200, the UV-sensitive film 100 includes a photosensitive layer 110, and the photosensitive layer 110 is configured to sense ultraviolet radiation to change an appearance state of the photosensitive layer 110.
In the technical scheme provided by the utility model, the UV sensitive film 100 is fixed to the curing surface 241 and carries out synchronous UV curing with the curing surface 241 of the display module 200; the photosensitive layer 110 on the UV photosensitive film 100 senses the ultraviolet light to change the appearance state, so that whether the curing surface 241 of the display module 200 is completely cured can be intuitively determined by determining whether the appearance state of the UV photosensitive film 100 is changed.
It can be understood that the cured surface 241 of the display module 200 may be a first outer surface of the flexible circuit board 240, a second outer surface exposed from the cover plate 220, or another outer surface of the display module 200 facing the display surface 211. Therefore, the UV-sensitive film 100 may be fixed to the first outer surface, the second outer surface, or the other outer surface according to different application requirements.
However, it should be noted that, since the display surface 211 of the main body structure 210 needs to be kept transparent, in order to reduce the interference of the change of the appearance state of the UV-sensitive film 100 on the display function of the display module 200, when the UV-sensitive film 100 needs to be fixed to the second outer surface, the UV-sensitive film 100 is detachably connected to the second outer surface of the cover plate 220, so that after the optical adhesive 230 is completely cured, the UV-sensitive film 100 can be removed from the second outer surface of the cover plate 220, so as not to interfere with the normal operation of the display module 200.
Since the first outer surface of the flexible circuit board 240 also needs to be UV-cured, and there is no obvious limitation on the appearance state such as transparency, the following embodiments will be described by taking the first outer surface of the flexible circuit board 240 as the curing surface 241.
The UV-sensitive film 100 includes a photosensitive layer 110, and the photosensitive layer 110 is capable of sensing irradiation of ultraviolet light and then changing its own appearance state according to the irradiation of the ultraviolet light. The ultraviolet irradiation condition specifically comprises ultraviolet irradiation intensity, ultraviolet irradiation duration, ultraviolet irradiation area range and the like; the change in appearance state comprises a change in shape state, such as a switch between a self-contracting state and an expanding state; the appearance state comprises a color state change, such as a transition from a first color state to a second color state.
The change in the external appearance state of the photosensitive layer 110 may be configured to be implemented based on a mechanical structure of the photosensitive layer 110, for example, the photosensitive layer 110 is configured to include a photochromic film, a photosensor, a controller, and the like, which will not be described in detail herein; of course, in order to simplify the structure of the photosensitive layer 110 and reduce the manufacturing cost of the UV-sensitive film 100, the change of the appearance state of the photosensitive layer 110 may also be implemented based on the material characteristics of the photosensitive layer 110, for example, in an embodiment, the photosensitive layer 110 is made of a material including a polyurethane resin and an alkylphenol and ethylene oxide polymer. Therefore, when the photosensitive layer 110 is irradiated by ultraviolet light, the photosensitive layer 110 can be switched from a transparent state to a non-transparent state, and can be easily and visually monitored by an operator.
In addition, referring to fig. 2, in an embodiment, the UV-sensitive film 100 further includes a substrate layer 120 stacked on the photosensitive layer 110. The substrate layer 120 provides structural support for the photosensitive layer 110, so that the photosensitive layer 110 can be spread uniformly on the substrate layer 120 without being dispersed.
The material of the substrate layer 120 may be various, and in this embodiment, the material of the substrate layer 120 may be a polyimide film. The polyimide film has outstanding high temperature resistance, radiation resistance, chemical corrosion resistance and electrical insulation performance, and has better flexibility and tensile strength, and when the photosensitive layer 110 is structurally supported, the flexibility of the whole UV photosensitive film 100 is not influenced, so that the whole UV photosensitive film 100 is more easily adapted to the curing surfaces 241 in different shapes; meanwhile, when the UV photosensitive film 100 is fixed to the flexible circuit board 240, the polyimide film may be used as an insulating material instead of the original insulating film of the flexible circuit board 240, without affecting the normal operation of the flexible circuit board 240.
It should be noted that there are various technical solutions for fixing the UV-sensitive film 100 to the curing surface 241, such as a press-fit manner, but in view of the structural simplification and the convenience of operation, referring to fig. 2, in an embodiment, the UV-sensitive film 100 further includes an adhesive layer 130 disposed on one side of the photosensitive layer 110, and the adhesive layer 130 is used for being adhesively fixed to the curing surface 241 of the display module 200. The adhesive layer 130 may be specifically disposed on a side of the substrate layer 120 opposite to the photosensitive layer 110, or disposed on a side of the photosensitive layer 110 opposite to the substrate layer 120. The adhesive layer 130 provides sufficient adhesive ability to facilitate direct adhesion of the UV-sensitive film 100 to the curing surface 241 of the display module 200.
Further, in this embodiment, the bonding layer 130 is made of an acrylic adhesive layer, which can be bonded on both sides, so as to fix the photosensitive layer 110 to the curing surface 241.
In addition, when the UV photosensitive film 100 further includes a substrate layer 120 and an adhesive layer 130 respectively disposed on two opposite sides of the photosensitive layer 110, the sum of the thicknesses of the substrate layer 120, the photosensitive layer 110 and the adhesive layer 130 is 70 to 80 μm, so that the UV photosensitive film 100 can fully exert its photosensitive capability while preventing the overall structural size of the flexible circuit board 240 from being affected by the excessively thick film.
In the above description, the photosensitive layer 110 is made of polyurethane resin, alkylphenol and ethylene oxide polymer, the base layer 120 is made of polyimide film, and the adhesive layer 130 is made of acrylic adhesive layer. The thickness of the substrate layer 120 can be set to be 20 μm, the thickness of the photosensitive layer 110 can be set to be 30 μm, and the adhesive layer 130 can be selected from the specification of viscosity of 3-5 g or the specification of viscosity of 8-10 g, and the corresponding thickness is 20 μm or 30 μm. As such, the entire thickness of the UV-sensitive film 100 may be set to 70 μm and 80 μm, respectively.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. The utility model provides a UV sensitization membrane for display module assembly, its characterized in that, UV sensitization membrane is used for fixing to on the solidification face of display module assembly, UV sensitization membrane includes the photosensitive layer, the photosensitive layer is set up to be able to respond to ultraviolet irradiation in order to change the outward appearance state of photosensitive layer.
2. The UV-sensitive film of claim 1, wherein the photosensitive layer is configured to be capable of transitioning from a first color state to a second color state upon sensing ultraviolet light exposure.
3. The UV-sensitive film of claim 2, wherein the photosensitive layer is made of a material comprising a polyurethane resin and a polymer of an alkylphenol and ethylene oxide.
4. The UV-sensitive film of claim 1, further comprising a substrate layer disposed in a stack with the photosensitive layer.
5. The UV-sensitive film of claim 4, wherein the substrate layer is made of a polyimide film.
6. The UV-sensitive film of claim 1, further comprising an adhesive layer disposed on one side of the photosensitive layer, the adhesive layer configured to be adhesively secured to a curing surface of the display module.
7. The UV sensitive film of claim 6, wherein the adhesive layer is made of an acrylic adhesive layer.
8. The UV-sensitive film according to claim 1, further comprising a substrate layer and an adhesive layer disposed on opposite sides of the photosensitive layer;
the thickness sum of the substrate layer, the photosensitive layer and the bonding layer is 70-80 μm.
9. A display device, comprising:
the display module is provided with a curing surface for ultraviolet curing; and the number of the first and second groups,
the UV-sensitive film according to any one of claims 1 to 8.
10. The display device according to claim 9, wherein the display module comprises:
a main body structure having a display surface;
a cover plate adhesively secured to the display surface by an optical adhesive; and the number of the first and second groups,
the flexible circuit board is arranged on one side of the main body structure and is provided with a curing surface which is arranged in the same direction as the display surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021372162.5U CN212694198U (en) | 2020-07-13 | 2020-07-13 | UV photosensitive film and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021372162.5U CN212694198U (en) | 2020-07-13 | 2020-07-13 | UV photosensitive film and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212694198U true CN212694198U (en) | 2021-03-12 |
Family
ID=74897765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021372162.5U Active CN212694198U (en) | 2020-07-13 | 2020-07-13 | UV photosensitive film and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212694198U (en) |
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2020
- 2020-07-13 CN CN202021372162.5U patent/CN212694198U/en active Active
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