Display film and electronic equipment

Abstract

The embodiment of the utility model provides a display film and an electronic device, which relates to the field of laser holographic technology. The display film includes a protective layer and a holographic image layer arranged in sequence, and the protective layer is used to protect the holographic image layer; the holographic image layer forms a preset three-dimensional image under the irradiation of light greater than or equal to the preset angle, and is transparent under the irradiation of light less than the preset angle. The display film provided by the embodiment of the utility model improves the aesthetics and sense of technology of the display film, and increases the user experience. While ensuring that the user can use the display screen normally, it can prevent the content of the mobile phone from being peeped, protect the content displayed by the user, and improve privacy.

Description

Technical Field

[0001] The utility model relates to the technical field of laser holography, in particular to a display film and electronic equipment. Background Art

[0002] As a kind of mobile phone peripheral industry, mobile phone protective film is increasingly widely used and researched. Currently, the existing display film can protect the user's mobile phone screen while ensuring the clarity of the mobile phone screen and not affecting the touch screen sensitivity. However, it is a difficult problem to add an image layer to enhance the beauty of the display film and increase the user experience while ensuring that the transparency is not affected. The image added in the existing technology will block the mobile phone screen and affect the normal use of the mobile phone screen. Utility Model Content

[0003] The embodiment of the utility model provides a display film and an electronic device to improve the aesthetics and technological sense of the display film and enhance the user experience. While ensuring the normal use of the display screen by the user, it can prevent the mobile phone content from being peeped, protect the content displayed by the user, and improve privacy.

[0004] In a first aspect, the utility model provides a display film, comprising: a protective layer and a holographic image layer arranged in sequence,

[0005] The protective layer is used to protect the holographic image layer;

[0006] The holographic image layer forms a preset three-dimensional image when illuminated by light having an angle greater than or equal to a preset angle, and becomes transparent when illuminated by light having an angle less than the preset angle.

[0007] Optionally, an adhesive layer is further included, and the adhesive layer is arranged on a side of the holographic image layer away from the protective layer.

[0008] Optionally, the adhesive layer is a silicone layer.

[0009] Optionally, the thickness of the holographic image layer is greater than or equal to 10 μm and less than or equal to 30 μm.

[0010] Optionally, the protective layer includes a PET material layer or a PE material layer.

[0011] Optionally, the preset angle includes a first preset angle and a second preset angle, and the preset three-dimensional image includes a first preset three-dimensional image and a second preset three-dimensional image; the second preset angle is greater than the first preset angle;

[0012] The holographic image layer forms the first preset three-dimensional image when illuminated by light having an angle greater than or equal to the first preset angle and less than the second preset angle, and forms the second preset three-dimensional image when illuminated by light having an angle greater than or equal to the second preset angle.

[0013] In a second aspect, the utility model provides an electronic device, comprising the display film and display screen as described above;

[0014] The holographic image layer is located between the display screen and the protection layer.

[0015] The display film and electronic device provided by the embodiment of the utility model, the holographic film includes a protective layer and a holographic image layer arranged in sequence, the protective layer is used to protect the holographic image layer, reduce the impact of scratches, dirt, water stains and other unexpected situations on the display effect of the holographic image layer during use, and ensure the normal operation of the display film, the holographic image layer includes a photopolymer, and the photopolymer material is exposed to a laser at a preset angle to set a preset three-dimensional image in the holographic image layer. The holographic image layer forms a preset three-dimensional image under the irradiation of light greater than or equal to the preset angle, and is transparent under the irradiation of light less than the preset angle. Improve the aesthetics and sense of technology of the display film, and increase the user experience. At the same time, while ensuring that the user can use the display screen normally, it can prevent the content of the mobile phone from being peeped, protect the content displayed by the user, and improve privacy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the side structure of the first display film provided by the embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the front view structure of the first display film provided by an embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the side structure of a second display film provided by an embodiment of the utility model;

[0019] Figure 4 A schematic diagram of the side structure of an electronic device provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0021] Figure 1 A schematic diagram of the side structure of a display film provided by an embodiment of the utility model; Figure 2 A schematic diagram of the front structure of a display film provided by an embodiment of the utility model, referring to Figure 1 and Figure 2 The holographic film includes a protective layer 10 and a holographic image layer 20 arranged in sequence. The protective layer 10 is used to protect the holographic image layer 20; the holographic image layer 20 forms a preset three-dimensional image under the irradiation of light greater than or equal to the preset angle, and is transparent under the irradiation of light less than the preset angle.

[0022] Exemplarily, the protective layer 10 is disposed on the outside of the display film. When the display film is attached to the display screen, the protective layer 10 is used to protect the holographic image layer 20, thereby reducing the impact of unexpected situations such as scratches, dirt, and water stains on the display effect of the holographic image layer 20 during use, thereby ensuring the normal operation of the display film.

[0023] Exemplarily, the holographic image layer 20 includes a photopolymer material, which is a polymer material that undergoes a polymerization reaction initiated by a photochemical method or light irradiation. This polymerization reaction will produce a chain reaction, continuously producing compounds. The polymerization reaction of the photopolymer is that the photosensitizer absorbs light energy, generates free radicals or ions, and initiates the growth and cross-linking of the polymer chain.

[0024] The principle of photopolymerization is as follows: photopolymer is a polymer material composed of monomer molecules. When these monomer molecules are irradiated by ultraviolet or visible light, they will undergo polymerization to form polymer chains. This reaction is usually initiated by free radicals or ions. In the reaction initiated by free radicals, the double bonds in the monomer molecules are activated by ultraviolet or visible light to produce free radicals, which then combine with the double bonds in other monomer molecules to form new polymer chains. In the reaction initiated by ions, the initiator is activated by ultraviolet or visible light to produce ions, which combine with monomer molecules to form new polymer chains. The length and morphology of the polymer chain can be adjusted by controlling the intensity and time of light exposure, thereby achieving precise control of its physical and chemical properties.

[0025] Specifically, by performing dual-path interference exposure on the photopolymer material, using a laser at a preset angle to expose the photopolymer material, and curing and baking the photopolymer material after the photosensitive treatment, a holographic image layer 20 can be obtained. By exposing the photopolymer material with a laser at a preset angle, a preset three-dimensional image is set in the holographic image layer 20. Under light less than the preset angle, the holographic image layer 20 is observed. The holographic image layer 20 is a transparent film layer, which does not affect the normal use of the display screen by the user. Under light greater than or equal to the preset angle, the holographic image layer 20 can display the preset three-dimensional image, improve the aesthetics and technological sense of the display film, and increase the user experience. At the same time, when a larger preset angle is set, the content of the mobile phone can be prevented from being peeped while ensuring the normal use of the display screen by the user, and the content displayed by the user can be protected to improve privacy. The preset angle and the preset three-dimensional image can be set according to actual needs, and the embodiment of the utility model does not make specific restrictions on this.

[0026] The display film provided by the embodiment of the utility model, the holographic film includes a protective layer and a holographic image layer which are arranged in sequence, the protective layer is used to protect the holographic image layer, reduce the impact of scratches, dirt, water stains and other unexpected situations on the display effect of the holographic image layer during use, and ensure the normal operation of the display film, the holographic image layer includes a photopolymer, and the photopolymer material is exposed to a laser at a preset angle, and a preset three-dimensional image is set in the holographic image layer. The holographic image layer forms a preset three-dimensional image under the irradiation of light greater than or equal to the preset angle, and is transparent under the irradiation of light less than the preset angle. The aesthetics and sense of technology of the display film are improved, and the user experience is increased. At the same time, while ensuring that the user can use the display screen normally, the content of the mobile phone can be prevented from being peeped, the content displayed by the user can be protected, and the privacy can be improved.

[0027] Figure 3 A side view structural diagram of a second display film provided by an embodiment of the utility model, referring to Figure 3 The display film further includes an adhesive layer 30, which is disposed on the side of the holographic image layer 20 away from the protective layer 10. The adhesive layer 30 is used to adhere the display film to the display screen, prevent the display film from being separated from the display screen, improve stability, and ensure the normal operation of the display film. When the adhesive layer 30 is separated from the display screen, no adhesive is left, which facilitates the replacement of the display film.

[0028] Exemplarily, the adhesive layer 30 is a silicone layer. In other embodiments, the adhesive layer 30 can also be other transparent adsorbable materials. The material of the adhesive layer 30 can be set according to actual needs, and the embodiment of the utility model does not make specific restrictions on this.

[0029] Exemplarily, the thickness of the holographic image layer 20 is greater than or equal to 10 μm and less than or equal to 30 μm. The thickness of the protective layer 10 is usually 50 μm, and the thickness of the holographic image layer 20 is less than that of the protective layer 10. By setting a holographic image layer 20 with a smaller thickness, the overall thickness of the display film is reduced, and the clarity of the display screen is not affected by the thickness of the display film, ensuring that the user can clearly observe the information on the display screen while improving the aesthetics of the display film and increasing the user experience.

[0030] Exemplarily, the protective layer 10 includes a PET material layer or a PE material layer. The PET material is a polyethylene terephthalate material, which has the characteristics of high strength, good transparency, non-toxicity, impermeability, light weight, excellent wear resistance and friction resistance, and the PE material is a polyethylene material, which has the characteristics of non-toxicity, good chemical stability, and low temperature resistance. The PET material layer or the PE material layer is provided to protect the holographic image layer 20 to ensure the normal operation of the holographic image layer 20. In other embodiments, a protective layer 10 of other materials can also be used, and the material of the protective layer 10 can be set according to actual needs, and the utility model does not make specific restrictions on this.

[0031] Exemplarily, the preset angle includes a first preset angle and a second preset angle, and the preset three-dimensional image includes a first preset three-dimensional image and a second preset three-dimensional image; the second preset angle is greater than the first preset angle; the holographic image layer forms the first preset three-dimensional image under the irradiation of light greater than or equal to the first preset angle and less than the second preset angle, and forms the second preset three-dimensional image under the irradiation of light greater than or equal to the second preset angle. The first preset angle and the second preset angle are set, and the holographic image layer 20 displays different preset three-dimensional images under different light irradiation angles, which improves the aesthetics of the display film and increases the user experience without affecting the normal use of the display screen. The first preset three-dimensional image and the second preset three-dimensional image can be set by exposing the holographic image layer 20 twice, or by simultaneously exposing the first preset three-dimensional image and the second preset three-dimensional image to set the preset three-dimensional image in the holographic image layer 20. In other embodiments, other numbers of preset angles and preset three-dimensional images can also be set, and the number of preset angles and preset three-dimensional images can be set according to actual needs, and the embodiment of the utility model does not impose specific restrictions on this.

[0032] In other embodiments, the holographic image layer 20 can be set to be transparent under light irradiation less than a preset angle. When the holographic image layer 20 is observed from the left side at an angle greater than or equal to the preset angle, a first preset image is formed, and when the holographic image layer 20 is observed from the right side, a second preset image is formed. When the holographic image layer 20 is observed from different directions, different preset three-dimensional images are displayed, further improving the aesthetics of the display film and increasing the user experience. The embodiments of the utility model do not impose specific restrictions on this.

[0033] Based on the same technical concept, the embodiment of the utility model also provides an electronic device, Figure 4 A schematic diagram of the side view structure of an electronic device provided by an embodiment of the utility model, referring to Figure 4 The electronic device includes the display film provided by any one of the embodiments of the present utility model and a display screen 40, and the holographic image layer 20 is located between the display screen 40 and the protective layer 10. The display screen 40 can be a mobile phone display screen or a computer display screen. The embodiment of the present utility model does not specifically limit the type of the display screen 40. Therefore, the electronic device provided by the embodiment of the present utility model has the corresponding beneficial effects of the display film provided by the embodiment of the present utility model, which will not be described in detail here.

[0034] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display film, characterized in that: comprising a protective layer and a holographic image layer arranged in sequence, The protective layer is used to protect the holographic image layer; The holographic image layer forms a preset three-dimensional image when illuminated by light having an angle greater than or equal to a preset angle, and becomes transparent when illuminated by light having an angle less than the preset angle.

2. The display film according to claim 1, characterized in that: The adhesive layer is also included, and the adhesive layer is arranged on a side of the holographic image layer away from the protective layer.

3. The display film according to claim 2, characterized in that: The adhesive layer is a silica gel layer.

4. The display film according to claim 1, characterized in that: The thickness of the holographic image layer is greater than or equal to 10 μm and less than or equal to 30 μm.

5. The display film according to claim 1, characterized in that: The protective layer includes a PET material layer or a PE material layer.

6. The display film according to claim 1, characterized in that: The preset angles include a first preset angle and a second preset angle, and the preset three-dimensional images include a first preset three-dimensional image and a second preset three-dimensional image; The second preset angle is greater than the first preset angle; The holographic image layer forms the first preset three-dimensional image when illuminated by light having an angle greater than or equal to the first preset angle and less than the second preset angle, and forms the second preset three-dimensional image when illuminated by light having an angle greater than or equal to the second preset angle.

7. An electronic device, characterized in that: A display film and a display screen comprising any one of claims 1 to 6; The holographic image layer is located between the display screen and the protection layer.

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