CN115826276A - Switchable peep-proof film - Google Patents
Switchable peep-proof film Download PDFInfo
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- CN115826276A CN115826276A CN202211396546.4A CN202211396546A CN115826276A CN 115826276 A CN115826276 A CN 115826276A CN 202211396546 A CN202211396546 A CN 202211396546A CN 115826276 A CN115826276 A CN 115826276A
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Abstract
The invention provides a switchable peep-proof film which comprises a liquid crystal peep-proof film, wherein the liquid crystal peep-proof film comprises a first substrate layer, a first conducting layer, a liquid crystal layer, a second conducting layer and a second substrate layer which are sequentially stacked; a plurality of transparent partition walls are arranged on the liquid crystal layer, the vertical direction of the transparent partition walls is vertical to the first substrate layer and the second substrate layer, a gap is formed between every two adjacent transparent partition walls, and a liquid crystal mixture is filled in the gap between every two transparent partition walls; when no voltage is applied between the first conducting layer and the second conducting layer, the long axis direction of liquid crystal molecules in the liquid crystal mixture is parallel to the first substrate layer and the second substrate layer, and the liquid crystal peep-proof film is in a peep-proof state; when a voltage is applied between the first conductive layer and the second conductive layer to a set voltage maximum value, the long axis direction of liquid crystal molecules in the liquid crystal mixture is vertical to the first substrate layer and the second substrate layer, and the liquid crystal peep-proof film is in a peep-proof state.
Description
Technical Field
The invention relates to the technical field of liquid crystal films, in particular to a switchable peep-proof film.
Background
Along with the rapid development of electronic products, especially mobile terminals such as mobile phones and the like become necessary articles for daily life of people, personal privacy of people stored in the mobile phones is more and more, the visual angle of a common mobile phone screen is larger, the personal privacy of people is easy to be revealed, and therefore a peep-proof film can be pasted on the mobile phone by many people. The peep-proof film principle technology adopts the principle of an ultra-fine shutter and is formed by compounding multiple layers of materials, and the peep-proof main body is a fine shutter structure and is realized by grating structures which are arranged in parallel; the interval of the grating is usually 0.02-0.1mm, and PET protective film layers are arranged on the upper side and the lower side. By controlling the angle of the light, the transmitted light is blocked by the grating and forms a visual angle which narrows the wide visual angle of the screen. The existing peep-proof film structure enables the visual angle of a mobile phone pasted with the peep-proof film to be fixed, the visual angle is usually in front of a display screen, and side people cannot see information browsed by themselves. Therefore, the current peep-proof membrane can not satisfy the demand of switching back and forth between peep-proof and non-peep-proof, can not satisfy the use of user under different demands.
Disclosure of Invention
The invention mainly aims to provide a switchable peep-proof film which is used for meeting the requirement of switching back and forth between peep-proof and non-peep-proof.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the invention provides a switchable peep-proof film, which comprises a liquid crystal peep-proof film, wherein the liquid crystal peep-proof film comprises a first substrate layer, a first conducting layer, a liquid crystal layer, a second conducting layer and a second substrate layer which are sequentially stacked;
the liquid crystal layer is provided with a plurality of transparent partition walls, the vertical direction of the transparent partition walls is perpendicular to the first substrate layer and the second substrate layer, a gap is reserved between every two adjacent transparent partition walls, and a liquid crystal mixture is filled in the gap between every two transparent partition walls;
when no voltage is applied between the first conductive layer and the second conductive layer, the long axis direction of liquid crystal molecules in the liquid crystal mixture is parallel to the first substrate layer and the second substrate layer, and the liquid crystal peep-proof film is in a peep-proof state; when a voltage is applied between the first conductive layer and the second conductive layer to a set voltage maximum value, the long axis direction of liquid crystal molecules in the liquid crystal mixture is vertical to the first substrate layer and the second substrate layer, and the liquid crystal peep-proof film is in a peep-proof state.
Further, the liquid crystal privacy film further comprises a first alignment layer and a second alignment layer, wherein the first alignment layer is arranged on the first conducting layer, and the second alignment layer is arranged on the second conducting layer.
Further, the first substrate layer and the second substrate layer are made of PET materials.
Further, the first conductive layer and the second conductive layer are ITO conductive layers.
Further, the liquid crystal material used in the liquid crystal mixture is a GH liquid crystal material.
Furthermore, the switchable peep-proof film further comprises a toughened film and an explosion-proof film, and the toughened film and the explosion-proof film are respectively adhered and fixed on two sides of the liquid crystal peep-proof film.
The invention has the beneficial effects that:
when no voltage is applied between the first conducting layer and the second conducting layer, the long axis direction of liquid crystal molecules in the liquid crystal mixture is parallel to the first substrate layer and the second substrate layer, the switchable peep-proof film can be normally viewed within the visible angle range of the front face of the switchable peep-proof film, and the color of the liquid crystal mixture viewed from the side outside the visible angle range is black, so that the switchable peep-proof film is in a peep-proof state; when a voltage is applied between the first conductive layer and the second conductive layer, the long axis direction of liquid crystal molecules in the liquid crystal mixture is vertical to the first substrate layer and the second substrate layer, and the liquid crystal mixture is in a transparent state when viewed from the front or the side, so that the switchable privacy film is in a non-privacy state. Through the mode that changes voltage between first conducting layer and the second conducting layer, can conveniently switch peep-proof state and peep-proof state fast, satisfy the demand of making a round trip to switch between peep-proof and peep-proof, more can satisfy the demand of user to peep-proof under different occasions and different opportunity.
Drawings
FIG. 1 is a cross-sectional view of a liquid crystal privacy film of the present invention in a privacy state;
FIG. 2 is a cross-sectional view of a liquid crystal privacy film of the present invention in a non-privacy state;
fig. 3 is a schematic structural view of a switchable privacy film of the present invention.
The reference numbers indicate:
100: a liquid crystal privacy film; 101: a first substrate layer; 102: a first conductive layer; 103: a first alignment layer; 104: a liquid crystal layer; 1041: a transparent partition wall; 1042: a liquid crystal mixture; 105: a second alignment layer; 106: a second conductive layer; 107: a second substrate layer; 200: tempering the film; 300: an explosion-proof membrane.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back) 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, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment 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, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 and fig. 2, the present invention provides a switchable privacy film, which includes a liquid crystal privacy film 100, wherein the liquid crystal privacy film 100 includes a first substrate layer 101, a first conductive layer 102, a liquid crystal layer 104, a second conductive layer 106, and a second substrate layer 107, which are sequentially stacked. The first substrate layer 101 and the second substrate layer 107 are made of PET material. The first conductive layer 102 and the second conductive layer 106 are ITO conductive layers. The liquid crystal privacy film 100 further includes a first alignment layer 103 and a second alignment layer 105, the first alignment layer 103 and the second alignment layer 105 are made of PI materials, the first alignment layer 103 is disposed on the first conductive layer 102, the second alignment layer 105 is disposed on the second conductive layer 106, and the first alignment layer 103 and the second alignment layer 105 serve to orient liquid crystal molecules in the liquid crystal layer 104.
A plurality of transparent partition walls 1041 are arranged on the liquid crystal layer 104, the vertical direction of each transparent partition wall 1041 is perpendicular to the first substrate layer 101 and the second substrate layer 107, a gap is formed between two adjacent transparent partition walls 1041, the width of each gap is the same, the transparent partition walls 1041 are parallel to each other, a liquid crystal mixture 1042 is filled in the gap between the two transparent partition walls 1041, the liquid crystal material used by the liquid crystal mixture 1042 is a GH liquid crystal material, and the GH liquid crystal is a conventional liquid crystal material.
The liquid crystal molecules are oriented by the first alignment layer 103 and the second alignment layer 105, so that when no voltage is applied between the first conductive layer 102 and the second conductive layer 106, the long axis direction of the liquid crystal molecules in the liquid crystal mixture 1042 is parallel to the first substrate layer 101 and the second substrate layer 107, as shown in fig. 1, at this time, the left and right viewing angle of the liquid crystal privacy film 100 is 35 °, and if the viewing angle is beyond this range, the liquid crystal mixture 1042 is black, and the switchable privacy film is in a privacy state; when a voltage is applied between the first conductive layer 102 and the second conductive layer 106, liquid crystal molecules rotate with the increase of the applied voltage, the voltage applied range is 0 to 20V, and when the voltage is applied to the maximum voltage value, as shown in fig. 2, the long axis direction of the liquid crystal molecules in the liquid crystal mixture 1042 is perpendicular to the first substrate layer 101 and the second substrate layer 107, and then the left and right viewing angles of the liquid crystal privacy film 100 can reach 75 °, that is, the switchable privacy film is in a non-privacy state.
Referring to fig. 3, the switchable privacy film further includes a tempered film 200 and an explosion-proof film 300, and the tempered film 200 and the explosion-proof film 300 are respectively bonded and fixed to two sides of the liquid crystal privacy film 100. The toughened film 200 with the rupture membrane 300 all uses OCA optical cement to paste on the liquid crystal peep-proof membrane 100, the toughened film 200 can increase whole the intensity of changeable peep-proof membrane for the changeable peep-proof membrane is resistant scraping resistant falling more, the rupture membrane 300 can play fine blast proof effect, prevents changeable peep-proof membrane explodes when broken.
The switchable privacy film can conveniently and quickly switch between the privacy state and the non-privacy state by changing the voltage between the first conducting layer 102 and the second conducting layer 106, meets the requirement of switching back and forth between privacy and non-privacy, can further meet the requirement of a user on privacy on different occasions and different occasions, can be applied to the fields of mobile phones, computers, intelligent bank terminals and the like which relate to display screens, and is applied to the mobile phones to exemplify the power supply control condition of the switchable privacy film. Be applied to and have multiple scheme to supply power to changeable peep-proof membrane on the cell-phone, at first changeable peep-proof membrane can directly paste on the display screen, directly use the cell-phone to supply power, and secondly changeable peep-proof membrane can also directly set up one and connect the electric head, then cooperates a cell-phone protective housing that possess power supply unit to use.
It should be noted that the technical solutions of the embodiments of the present invention can be combined with each other, but must be based on the realization of the technical solutions by those skilled in the art, and when the technical solutions are contradictory or can not be realized, the combination of the technical solutions should be considered to be absent and not to be within the protection scope of the present invention.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A switchable privacy film is characterized by comprising a liquid crystal privacy film, wherein the liquid crystal privacy film comprises a first substrate layer, a first conductive layer, a liquid crystal layer, a second conductive layer and a second substrate layer which are sequentially stacked;
the liquid crystal layer is provided with a plurality of transparent partition walls, the vertical direction of the transparent partition walls is perpendicular to the first substrate layer and the second substrate layer, a gap is reserved between every two adjacent transparent partition walls, and a liquid crystal mixture is filled in the gap between every two transparent partition walls;
when no voltage is applied between the first conductive layer and the second conductive layer, the long axis direction of liquid crystal molecules in the liquid crystal mixture is parallel to the first substrate layer and the second substrate layer, and the liquid crystal peep-proof film is in a peep-proof state; when a voltage is applied between the first conductive layer and the second conductive layer to a set voltage maximum value, the long axis direction of the liquid crystal molecules in the liquid crystal mixture is perpendicular to the first substrate layer and the second substrate layer, and the liquid crystal privacy film is in a privacy state.
2. The switchable privacy film of claim 1, further comprising a first alignment layer disposed on the first electrically conductive layer and a second alignment layer disposed on the second electrically conductive layer.
3. The switchable privacy film of claim 1, wherein the first substrate layer and the second substrate layer are made of a PET material.
4. The switchable privacy film of claim 1, wherein the first and second conductive layers are ITO conductive layers.
5. The switchable privacy film of claim 1, wherein the liquid crystal material used in the liquid crystal mixture is a GH liquid crystal material.
6. The switchable privacy film of claim 1, further comprising a tempered film and an explosion-proof film, wherein the tempered film and the explosion-proof film are respectively bonded and fixed to two sides of the liquid crystal privacy film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211396546.4A CN115826276A (en) | 2022-11-07 | 2022-11-07 | Switchable peep-proof film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211396546.4A CN115826276A (en) | 2022-11-07 | 2022-11-07 | Switchable peep-proof film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115826276A true CN115826276A (en) | 2023-03-21 |
Family
ID=85527323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211396546.4A Pending CN115826276A (en) | 2022-11-07 | 2022-11-07 | Switchable peep-proof film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115826276A (en) |
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2022
- 2022-11-07 CN CN202211396546.4A patent/CN115826276A/en active Pending
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