An impact-resistant flexible liquid crystal lens

Abstract

The present invention relates to an impact-resistant flexible liquid crystal lens, which includes two polarizers and a flexible liquid crystal cell disposed between the two polarizers, and an isolation gap is provided between the flexible liquid crystal cell and the polarizers on both sides. Compared with the prior art, the polarizers and the flexible liquid crystal cell of the present invention are sealed around and separated in the middle. During the process of the flexible liquid crystal lens being deformed by force and rebounding and recovering, the flexible liquid crystal cell will not be subjected to opposite forces on both sides, greatly improving the impact resistance of the flexible liquid crystal lens and ensuring the reliability of the product.

Description

Technical Field

[0001] The present invention relates to the field of flexible liquid crystal lenses, and particularly to an impact-resistant flexible liquid crystal lens. Background Art

[0002] At present, for flexible liquid crystal lenses on the market, whether it is a hardened flexible liquid crystal lens attached to a hardening film or an unhardened flexible liquid crystal lens not attached to a hardening film, the flexible liquid crystal cell in the middle and the polarizers on both sides are closely bonded face to face. Due to the poor rigidity of the flexible liquid crystal lens, when subjected to an external force impact, the amount of deformation of the product is relatively large. During the process of deformation and rebound recovery, the polarizers on both sides generate opposite acting forces on the flexible liquid crystal cell in the middle, increasing the capacity of the flexible liquid crystal cell. However, the amount of liquid crystal in the flexible liquid crystal cell is certain, and the extra space is prone to vacuum bubbles, which will cause the flexible liquid crystal lens to be scrapped. Summary of the Invention

[0003] In order to solve the problem that in the prior art, when a flexible liquid crystal lens is subjected to an external force impact, vacuum bubbles are likely to appear in the flexible liquid crystal cell, which easily leads to the scrapping of the flexible liquid crystal lens, the present invention provides an impact-resistant flexible liquid crystal lens.

[0004] The object of the present invention can be achieved by the following technical solutions:

[0005] The present invention provides an impact-resistant flexible liquid crystal lens, including two polarizers, and a flexible liquid crystal cell disposed between the two polarizers. There is an isolation gap between the flexible liquid crystal cell and the polarizers on both sides, and the isolation gap prevents the flexible liquid crystal cell from being in face-to-face contact connection with the polarizers on both sides.

[0006] In an embodiment of the present invention, in order to suppress interference fringes in the lens, a number of spacer particles are disposed in the isolation gap, and the flexible liquid crystal cell and the polarizers on both sides squeeze the spacer particles to ensure that the spacer ions remain fixed.

[0007] In an embodiment of the present invention, the spacer particles are light-transmitting spacer ions.

[0008] In an embodiment of the present invention, the spacer particles are preferably arranged at uniform intervals.

[0009] In an embodiment of the present invention, the spacer particles are spherical.

[0010] In an embodiment of the present invention, the spacer particles are made of a resin material.

[0011] In an embodiment of the present invention, the spacer particles are resin spheres.

[0012] In an embodiment of the present invention, spacer particles are evenly sprayed on both side walls of the flexible liquid crystal cell, and due to electrostatic action during the spraying process of the spacer particles, the spacer particles will be adsorbed on both side walls of the flexible liquid crystal cell.

[0013] In an embodiment of the present invention, in order to improve the hardness of the liquid crystal lens, a hardening film is provided on the outer side of one of the polarizers, or hardening films can be provided on the outer sides of both polarizers.

[0014] In an embodiment of the present invention, the hardening film can be provided in such a way that the outer side of the polarizer is closely attached to the hardening film.

[0015] In an embodiment of the present invention, the way of closely attaching the outer side of the polarizer to the hardening film can be achieved by means of applying glue on the outside of the polarizer.

[0016] In an embodiment of the present invention, the hardening film can specifically adopt a TAC lens.

[0017] In an embodiment of the present invention, in order to simplify the structure and improve the hardness of the liquid crystal lens, the polarizer is specifically changed to a TAC polarizing lens with a polarizing function.

[0018] In an embodiment of the present invention, an adhesive layer is provided around the polarizer, and the polarizers on both sides are fixed on the flexible liquid crystal cell through the adhesive layer.

[0019] In an embodiment of the present invention, the polarizers on both sides are fixed together through the adhesive layer, and a plurality of spacer particles are provided in the isolation gap. The outer walls of the spacer particles respectively abut against the polarizer and the flexible liquid crystal cell, and the spacer particles play a role in supporting the flexible liquid crystal cell.

[0020] In an embodiment of the present invention, the adhesive layer can be in a narrow strip shape.

[0021] In an embodiment of the present invention, the adhesive layer can specifically adopt double-sided tape.

[0022] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0023] The polarizer and the flexible liquid crystal cell of the present invention are sealed around and separated in the middle. During the process of the flexible liquid crystal lens deforming under force and rebounding and recovering, the flexible liquid crystal cell will not be subjected to opposite forces on both sides, greatly improving the impact resistance of the flexible liquid crystal lens and ensuring the reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic end face structure diagram of the impact-resistant flexible liquid crystal lens in Embodiment 1 of the present invention;

[0025] Figure 2 Schematic end face structure diagram of the impact-resistant flexible liquid crystal lens in Embodiment 3 of the present invention;

[0026] Figure 3 Schematic end face structure diagram of the impact-resistant flexible liquid crystal lens in Embodiment 4 of the present invention;

[0027] Figure 4 Schematic end face structure diagram of the impact-resistant flexible liquid crystal lens in Embodiment 7 of the present invention;

[0028] Figure 5 Schematic end face structure diagram of the impact-resistant flexible liquid crystal lens in Embodiment 8 of the present invention;

[0029] Figure 6 Schematic end face structure diagram of the impact-resistant flexible liquid crystal lens in Embodiment 11 of the present invention.

[0030] Explanation of reference numerals: 1, polarizer; 2, flexible liquid crystal cell; 3, isolation gap; 4, adhesive layer; 5, hardening film; 6, spacer particles. Detailed implementation manners

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0032] Embodiment 1

[0033] As Figure 1 shown, an impact-resistant flexible liquid crystal lens is disclosed in this embodiment, which includes two polarizers 1 and a flexible liquid crystal cell 2 disposed between the two polarizers 1. An isolation gap 3 is provided between the flexible liquid crystal cell 2 and the polarizers 1 on both sides, and the isolation gap 3 prevents the flexible liquid crystal cell 2 from being in surface-to-surface contact connection with the polarizers 1 on both sides.

[0034] In this embodiment, an adhesive layer 4 is provided around the polarizer 1, and the polarizers 1 on both sides are fixed on the flexible liquid crystal cell 2 through the adhesive layer 4.

[0035] In this embodiment, the adhesive layer 4 can be in a narrow strip shape, and the adhesive layer 4 can specifically adopt double-sided tape.

[0036] Embodiment 2

[0037] In order to improve the hardness of the liquid crystal lens, in this embodiment, on the basis of Embodiment 1, a hardening film 5 is provided on the outer side of one of the polarizers 1, or hardening films 5 can be provided on the outer sides of both polarizers 1.

[0038] Specifically, the method of providing the hardening film can be: closely fitting the outer side of the polarizer 1 with the hardening film 5.

[0039] The way to closely attach the outer side of the polarizer 1 to the hardening film 5 can be achieved by applying adhesive on the outer side of the polarizer 1.

[0040] In this embodiment, the hardening film 5 can specifically adopt a TAC lens.

[0041] Embodiment 3

[0042] As Figure 2 shown, in order to suppress the interference fringes in the lens, based on Embodiment 1, in this embodiment, a number of spacer particles 6 are provided in the isolation gap 3, and the flexible liquid crystal cell 2 presses the spacer particles 6 on both sides to ensure that the spacer ions are fixed. The other features are the same as those in Embodiment 1.

[0043] In this embodiment, the spacer particles 6 are light-transmitting spacer ions.

[0044] In this embodiment, the spacer particles 6 are preferably arranged at uniform intervals.

[0045] In this embodiment, the spacer particles 6 are spherical and made of resin material, that is, in this embodiment, the spacer particles 6 are resin spheres.

[0046] In this embodiment, the spacer particles 6 are uniformly sprayed on the two side walls of the flexible liquid crystal cell 2, and due to electrostatic action during the spraying process of the spacer particles, the spacer particles will be adsorbed on the two side walls of the flexible liquid crystal cell 2.

[0047] Embodiment 4

[0048] In order to improve the hardness of the liquid crystal lens, based on Embodiment 3, a hardening film 5 can be provided on the outer side of one polarizer 1, or hardening films 5 can be provided on the outer sides of both polarizers 1.

[0049] As Figure 3 shown, in this embodiment, a hardening film 5 is provided on the outer side of one of the polarizers 1.

[0050] Specifically, the way to provide the hardening film can be: closely attach the outer side of the polarizer 1 to the hardening film 5.

[0051] The way to closely attach the outer side of the polarizer 1 to the hardening film 5 can be achieved by applying adhesive on the outer side of the polarizer 1.

[0052] In this embodiment, the hardening film 5 can specifically adopt a TAC lens.

[0053] Compared with Embodiment 1, this embodiment solves the problem of interference fringes and improves the hardness of the liquid crystal lens at the same time.

[0054] Embodiment 5

[0055] In order to simplify the structure and improve the hardness of the liquid crystal lens, based on Embodiment 1, in this embodiment, the polarizer 1 is specifically changed to a TAC polarizing lens with polarizing function.

[0056] That is, compared with Embodiment 1, in this embodiment, the polarizer 1 is a TAC polarizing lens with polarizing function. On the basis of retaining the simplified structure, the hardness of the liquid crystal lens is improved.

[0057] Embodiment 6

[0058] Based on Embodiment 3, the polarizer 1 in Embodiment 3 is specifically changed to a TAC polarizing lens with polarizing function. That is, compared with Embodiment 3, in this embodiment, the polarizer 1 is a TAC polarizing lens with polarizing function. This embodiment solves the interference fringe problem, improves the hardness of the liquid crystal lens, and retains the simplified structure at the same time.

[0059] At the same time, compared with Embodiment 4, the main change in the structure of this embodiment is that the structure is simplified.

[0060] Embodiment 7

[0061] As Figure 4 shown, in this embodiment, an impact-resistant flexible liquid crystal lens is disclosed, which includes two polarizers 1 and a flexible liquid crystal cell 2 disposed between the two polarizers 1. An isolation gap 3 is provided between the flexible liquid crystal cell 2 and the polarizers 1 on both sides.

[0062] In this embodiment, the polarizers 1 on both sides are fixed together through an adhesive layer 4. A plurality of spacer particles 6 are provided in the isolation gap 3. The outer walls of the spacer particles 6 respectively abut against the polarizer 1 and the flexible liquid crystal cell 2, and the spacer particles 6 play a role in supporting the flexible liquid crystal cell 2.

[0063] In this embodiment, the spacer particles 6 are light-transmitting spacer ions.

[0064] In this embodiment, the spacer particles 6 are in spherical shape and made of resin material. That is, in this embodiment, the spacer particles 6 are resin spheres.

[0065] In this embodiment, the spacer particles 6 are uniformly sprayed on the two side walls of the flexible liquid crystal cell 2, and due to electrostatic action during the spraying process of the spacer particles, the spacer particles will be adsorbed on the two side walls of the flexible liquid crystal cell 2.

[0066] In this embodiment, the adhesive layer 4 can specifically adopt double-sided tape.

[0067] Compared with Embodiment 3, the main difference in this embodiment lies in the setting method of the adhesive layer 4. In this embodiment, the polarizers 1 on both sides are fixed together through the adhesive layer 4. In Embodiment 3, the adhesive layer 4 is provided around the polarizer 1, and the polarizers 1 on both sides are fixed on the flexible liquid crystal cell 2 through the adhesive layer 4.

[0068] Embodiment 8

[0069] As Figure 5 shown, on the basis of the structure of Embodiment 7, in order to suppress the interference fringes in the lens, the light-transmitting spacer particles 6 are evenly spaced in the isolation gap 3.

[0070] Embodiment 9

[0071] In order to improve the hardness of the liquid crystal lens, on the basis of Embodiment 7, a hardening film 5 is provided on the outer side of one of the polarizers 1, or hardening films 5 can be provided on the outer sides of both polarizers 1.

[0072] Specifically, the way to set the hardening film can be: closely attach the outer side of the polarizer 1 to the hardening film 5.

[0073] The way to closely attach the outer side of the polarizer 1 to the hardening film 5 can be achieved by means of applying glue on the outside of the polarizer 1.

[0074] In this embodiment, the hardening film 5 can specifically adopt a TAC lens.

[0075] Embodiment 10

[0076] In order to simplify the structure and improve the hardness of the liquid crystal lens, on the basis of Embodiment 7, in this embodiment, the polarizer 1 is specifically changed to a TAC polarizing lens with a polarizing function.

[0077] That is, compared with Embodiment 7, in this embodiment, the polarizer 1 is a TAC polarizing lens with a polarizing function. The hardness of the liquid crystal lens is improved while maintaining the simplified structure.

[0078] At the same time, compared with Embodiment 9, the main change in the structure of this embodiment is the simplification of the structure.

[0079] Embodiment 11

[0080] As Figure 6 shown, in order to improve the hardness of the liquid crystal lens, on the basis of Embodiment 8, in this embodiment, hardening films 5 are provided on the outer sides of both polarizers 1.

[0081] Specifically, the way to set the hardening film can be: closely attach the outer side of the polarizer 1 to the hardening film 5.

[0082] The way of closely attaching the outer side of the polarizer 1 to the hardening film 5 can be achieved by applying glue on the outside of the polarizer 1.

[0083] In this embodiment, the hardening film 5 can specifically adopt a TAC lens.

[0084] Embodiment 12

[0085] Based on Embodiment 8, in this embodiment, the polarizer 1 is specifically changed to a TAC polarizing lens with a polarizing function.

[0086] That is, compared with Embodiment 8, in this embodiment, the polarizer 1 is a TAC polarizing lens with a polarizing function. The hardness of the liquid crystal lens is improved while maintaining the simplified structure.

[0087] At the same time, compared with Embodiment 11, the main change in the structure of this embodiment is the simplification of the structure.

[0088] The above description of the embodiments is to enable those of ordinary skill in the art to understand and use the invention. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the present invention is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. An impact-resistant flexible liquid crystal lens, characterized in that: It includes two polarizers (1), and a flexible liquid crystal cell (2) disposed between the two polarizers (1). An isolation gap (3) is provided between the flexible liquid crystal cell (2) and the polarizers (1) on both sides; Spacer particles (6) are provided in the isolation gap (3). The outer walls of the spacer particles (6) are respectively abutted against the polarizer (1) and the flexible liquid crystal cell (2). The spacer particles (6) are uniformly arranged in the isolation gap (3).

2. The impact-resistant flexible liquid crystal lens according to claim 1, wherein: A hardening film (5) is provided on the outer surface of one of the polarizers (1), or hardening films (5) are provided on the outer surfaces of both polarizers (1).

3. The impact-resistant flexible liquid crystal lens according to claim 2, wherein: The hardening film (5) is a TAC lens.

4. An impact-resistant flexible liquid crystal lens according to claim 1, characterized in that: The polarizer (1) is a TAC polarizing lens with a polarizing function.

5. The impact-resistant flexible liquid crystal lens according to claim 1, wherein: An adhesive layer (4) is provided around the polarizer (1). The polarizers (1) on both sides are fixed to the flexible liquid crystal cell (2) through the adhesive layer (4).

6. The impact-resistant flexible liquid crystal lens according to claim 5, characterized in that: The adhesive layer (4) is double-sided tape.

7. An impact-resistant flexible liquid crystal lens according to claim 1, characterized in that: The polarizers (1) on both sides are fixed together through the adhesive layer (4). Spacer particles (6) are provided in the isolation gap (3). The spacer particles (6) play a role in supporting the flexible liquid crystal cell (2). The outer walls of the spacer particles (6) are respectively abutted against the polarizer (1) and the flexible liquid crystal cell (2).

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