Liquid crystal dimming film, lens and glasses thereof
By designing a double-layer liquid crystal dimming film structure and utilizing the conductive layer pattern and transmittance adjustment, the problem that traditional liquid crystal dimming films cannot meet diverse display requirements has been solved, realizing multiple display effects and fashionable functions for dimming glasses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional liquid crystal dimming films have a simple structure and cannot meet the diverse display needs in complex scenarios, especially in wearable display fields such as dimming glasses, where users pursue more fashionable and cooler display effects.
Design a structure comprising at least two liquid crystal dimming films, wherein the first liquid crystal dimming film forms a pattern by constructing a conductive layer, and the second liquid crystal dimming film is used to adjust the light transmittance. The two are superimposed to achieve a variety of display effects, including switching between light transmittance and pattern display.
It achieves the switching of multiple display effects with a relatively simple structure, is suitable for wearable display fields such as dimming glasses, and has fashionable functions such as light transmittance adjustment and logo display.
Smart Images
Figure CN224020120U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of liquid crystal dimming, in particular to a liquid crystal dimming film and a lens and glasses comprising the same. BACKGROUND
[0002] The liquid crystal dimming film generally comprises a pair of transparent electrode layers and a liquid crystal layer between the electrode layers, the arrangement of liquid crystal molecules in the liquid crystal layer can change with the change of the applied electric field, having an electric response characteristic; at the same time, the liquid crystal molecules can form a certain degree of ordered arrangement through surface orientation and other methods, having a light modulation function for the light passing through the inside, having a light modulation characteristic.
[0003] Due to the electric response and light modulation characteristics of liquid crystal materials, liquid crystal materials have been widely used in display fields since the 1960s-1970s. At present, liquid crystal dimming films have been widely used in building curtain walls, doors and windows, automobile canopies, side windows, dimming glasses, virtual reality glasses and other products and optical devices requiring light modulation functions.
[0004] The application of liquid crystal dimming films in the market is more and more, and the requirements for the optical properties of liquid crystal dimming films such as haze, color, transmittance range, contrast ratio and dynamic pattern dimming display, especially the switching display of multiple display effects, are getting higher and higher.
[0005] Traditional liquid crystal dimming films usually adopt a single-layer film structure, which can only realize the adjustment of transmittance, or monotonous pattern display, or single-color display, and cannot meet the diversified display requirements in complex scenes.
[0006] In the field of wearable display such as dimming glasses, users have increasingly high requirements for the functions of dimming glasses and other devices, and users begin to pursue more fashionable and cool display effects. Therefore, there is an urgent need for a liquid crystal dimming film with a simple structure that can support switching display of changes such as transmittance, pattern or color. INNOVATION CONTENT
[0007] In view of the above technical problems, the present application provides a liquid crystal dimming film comprising at least one layer of liquid crystal dimming film with variable transmittance and one layer of liquid crystal dimming film capable of displaying a pattern logo, the two layers of liquid crystal dimming film can be displayed separately or in combination, and through the combination of at least two layers of liquid crystal dimming film, a variety of display effects can be supported by a relatively simple structure, which is suitable for large-scale application in the field of wearable display such as dimming glasses.
[0008] In one aspect of the present application, a liquid crystal dimming film is provided, which comprises at least a first liquid crystal dimming film and a second liquid crystal dimming film arranged in a stack, the first liquid crystal dimming film comprises a first upper conductive layer and a first lower conductive layer arranged oppositely, and a first liquid crystal layer between the first upper conductive layer and the first lower conductive layer, the second liquid crystal dimming film comprises a second upper conductive layer and a second lower conductive layer arranged oppositely, and a second liquid crystal layer between the second upper conductive layer and the second lower conductive layer.
[0009] The first upper conductive layer and / or the first lower conductive layer is configured as two or more conductive regions, and the first upper conductive layer and the first lower conductive layer after being configured are spatially superimposed to form a first pattern.
[0010] The first liquid crystal dimming film of the liquid crystal dimming film of the present application comprises at least a first liquid crystal dimming film and a second liquid crystal dimming film, and the two conductive layers arranged oppositely in the first liquid crystal dimming film can be configured alternatively or both. The configuration can be achieved by physical and chemical deposition of a specific pattern, or selective etching of the entire layer to configure the required conductive layer. The two conductive layers after being configured are spatially superimposed to form a first pattern. For example, the first pattern can be a "WICUE" character, that is, the first liquid crystal dimming film is in a transparent state in a normal state, and the "WICUE" character has a corresponding conductive layer, and the "WICUE" character has no corresponding conductive layer. Under voltage control, the liquid crystal molecules corresponding to the "WICUE" character rotate, and the first liquid crystal dimming film changes to a light shielding state (relative to the transparent state) to display the "WICUE" pattern. The liquid crystal dimming film of the present application comprises at least two liquid crystal dimming films, the first liquid crystal dimming film is used to adjust the light transmittance of part of the light irradiated thereon to display a first pattern, and the second liquid crystal dimming film can be a general liquid crystal dimming film. The liquid crystal dimming film of the present application can meet the needs of various display effect switching with a relatively simple structure.
[0011] Preferably, the first pattern is any one of a character pattern, a graphic pattern, or a combination pattern of characters and graphics.
[0012] Preferably, the first liquid crystal layer and the second liquid crystal layer are both guest-host type liquid crystal layers, and the guest-host type liquid crystal layer comprises liquid crystal molecules and dichroic dye molecules. Further, the dichroic dye molecules can be color dye molecules, and different color dye molecules can absorb different colors. Specifically, the transmitted light of the first liquid crystal layer is of a first color, and the transmitted light of the second liquid crystal layer is of a second color. The first color and the second color can be the same or different. When the first color and the second color are different, the first color transmitted light and the second color transmitted light can be combined into third color transmitted light.
[0013] Preferably, the first color is blue and the second color is red.
[0014] Preferably, the second upper conductive layer and / or the second lower conductive layer are configured as two or more conductive regions, and the configured second upper conductive layer and second lower conductive layer are spatially superimposed to form a second pattern. Similarly, the second pattern can be any one of a text pattern, a graphic pattern, or a combination of text and graphic pattern.
[0015] Preferably, the first pattern and the second pattern do not overlap in spatial position. Here, non-overlapping can be understood as the two orthogonal projections of the first pattern and the second pattern relative to a certain plane can have adjacent contact parts, but no overlapping parts.
[0016] Preferably, the first liquid crystal dimming film and the second liquid crystal dimming film are bonded by an optically transparent adhesive layer.
[0017] Preferably, the adhesive layer is any one of ethylene-vinyl acetate copolymer, polyvinyl butyral, optically transparent glue, or self-curing adhesive.
[0018] Preferably, the first liquid crystal dimming film is electrically connected with a first driving circuit, and the second liquid crystal dimming film is electrically connected with a second driving circuit. The first driving circuit and the second driving circuit can be independently controlled or synchronously controlled. The liquid crystal dimming film of the present application supports single-layer display and at least double-layer superimposed display.
[0019] Another aspect of the present application provides a lens comprising the liquid crystal dimming film as described above.
[0020] Another aspect of the present application provides a pair of glasses comprising the lens as described above.
[0021] Compared with the prior art, the beneficial effects of the technical scheme of the present application are as follows: the liquid crystal dimming film of the present application comprises at least a first liquid crystal dimming film and a second liquid crystal dimming film, and a plurality of liquid crystal dimming films are directly designed and laminated. The liquid crystal dimming film of the present application designs and configures two conductive layers arranged oppositely in the first liquid crystal dimming film, and the two conductive layers are spatially superimposed to form a first pattern, and the first pattern logo can be displayed or hidden; the second liquid crystal dimming film can be used as a general liquid crystal dimming film for adjusting the light transmittance of all light rays irradiated thereon; the liquid crystal dimming film of the present application can meet the switching display of various display effects with a relatively simple structure, and can be applied to the lens of dimming glasses, and has fashionable functions such as light transmittance adjustment and logo display. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 FIG. 1 is a structural schematic diagram of a double-layer liquid crystal dimming film in an embodiment of the present application;
[0023] Figure 2 FIG. 1 is a structural schematic diagram of a single-layer liquid crystal dimming film in an embodiment of the present application;
[0024] Figure 3 FIG. 2 is a schematic diagram of a display effect of a spectacle lens displaying a blue logo in an embodiment of the present application;
[0025] Figure 4 FIG. 3 is a schematic diagram of a display effect of a spectacle lens transmitting red light in an embodiment of the present application;
[0026] Figure 5 FIG. 4 is a schematic diagram of a display effect of a spectacle lens without applying voltage in an embodiment of the present application;
[0027] Figure 6 FIG. 5 is a schematic diagram of a display effect of a spectacle lens displaying two combined effects in an embodiment of the present application.
[0028] The reference signs: liquid crystal dimming film-100, first liquid crystal dimming film-101, second liquid crystal dimming film-102, first upper conductive layer-1011, first lower conductive layer-1012, first liquid crystal layer-1013, second upper conductive layer-1021, second lower conductive layer-1022, second liquid crystal layer-1023. DETAILED DESCRIPTION
[0029] The schemes in the embodiments of the present application will be described in detail below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.
[0030] As described in the background, the application of liquid crystal dimming film is more and more extensive, especially when it is applied to wearable devices such as dimming glasses, the requirement for its display effect diversity is higher and higher.
[0031] A single-layer liquid crystal light-adjustable film generally includes a pair of transparent conductive layers and a liquid crystal layer between the conductive layers, the orientation state of the liquid crystal molecules in the liquid crystal layer changes accordingly with the electric field between the conductive layers, thereby changing the light transmittance of the liquid crystal light-adjustable film, i.e. achieving light adjustment. The liquid crystal layer can be configured such that the light transmittance is the highest when the voltage value of the control signal is at its lowest value (e.g. 0 volts), which is sometimes referred to as the "normally white (NW)" state, i.e. the light transmittance state described in the embodiments of the present application; or the liquid crystal layer can be configured such that the light transmittance is the lowest when the voltage value of the control signal is at its lowest value (e.g. 0 volts), which is sometimes referred to as the "normally black (NB)" state. The liquid crystal light-adjustable film included in the light-adjustable glasses of the embodiments of the present application is generally set to the "normally white" state, at which the light transmittance of the liquid crystal light-adjustable film is the highest; correspondingly, the light-blocking state described in the embodiments of the present application is relative to the light transmittance state, and the light-blocking state refers to the light transmittance of the liquid crystal light-adjustable film being the lowest.
[0032] For the liquid crystal layer described above, it can include liquid crystal molecules as the host and dichroic dye molecules as the guest, the dichroic dye molecules rotate synchronously with the liquid crystal molecules, and they can selectively absorb light of a specific polarization direction, so that by adjusting the orientation of the liquid crystal molecules through the electric field, the direction of the dichroic dye molecules can be indirectly controlled, thereby changing their absorption state of light; for example, when the long axis direction of the dichroic dye molecules is parallel to the polarization direction of the light, the dichroic dye molecules will strongly absorb light (showing dark color), when the long axis direction of the dichroic dye molecules is perpendicular to the polarization direction of the light, the dichroic dye molecules will weakly absorb light (showing light color or transparency), and when the liquid crystal molecules and the dichroic dye molecules partially rotate, an intermediate tone (gray or mixed color) is presented.
[0033] In the field of wearable display, the user's functional requirements for light modulation devices are increasing, such as the pursuit of switching combination of diversified display effects. To meet this demand, the inventors of the present application creatively propose a liquid crystal light modulation film 100, which comprises at least a first liquid crystal light modulation film 101 and a second liquid crystal light modulation film 102 arranged in a stack, the first liquid crystal light modulation film 101 comprises a first upper conductive layer 1011 and a first lower conductive layer 1012 arranged oppositely, and a first liquid crystal layer 1013 located between the first upper conductive layer 1011 and the first lower conductive layer 1012, the second liquid crystal light modulation film 102 comprises a second upper conductive layer 1021 and a second lower conductive layer 1022 arranged oppositely, and a second liquid crystal layer 1023 located between the second upper conductive layer 1021 and the second lower conductive layer 1022; the first upper conductive layer 1011 and / or the first lower conductive layer 1012 is / are configured as two or more conductive regions, and the configured first upper conductive layer 1011 and the first lower conductive layer 1012 are spatially superimposed to form a first pattern. It should be noted that the up-down direction in the first upper / lower conductive layer or the second upper / lower conductive layer is only a naming distinction for convenience of description, which does not limit the actual product in terms of the up-down position of the conductive layer.
[0034] The two conductive layers arranged oppositely in the first liquid crystal light modulation film 101 can be configured alternatively or both. The configured two conductive layers are spatially superimposed to form a first pattern. The configuration of the conductive layer can usually be selected to etch a specific position of the whole conductive layer to form a corresponding hollow pattern, i.e. there is no conductive layer at the position corresponding to the pattern; or it can also be selected to deposit a conductive layer in the shape of a corresponding pattern at a specific position, i.e. there is only a conductive layer at the position corresponding to the pattern (there is no conductive layer at the position corresponding to the pattern outside). These two ways can be selected according to actual needs.
[0035] For example, the first pattern can be "WICUE" shape, the first liquid crystal light modulation film 101 is in a light-transmitting state in a normal state, there is a corresponding conductive layer at the "WICUE" shape, and there is no corresponding conductive layer outside the "WICUE" shape. Under voltage control, the liquid crystal molecules corresponding to the "WICUE" shape rotate, the first liquid crystal light modulation film at this position becomes a light-shielding state (relative to the light-transmitting state) and displays a pattern of "WICUE" shape.
[0036] The first liquid crystal light modulation film 101 and the second liquid crystal light modulation film 102 of the present application spatially overlap with each other, the light transmitted through the first liquid crystal light modulation film 101 can be incident on the second liquid crystal light modulation film 102, or the light transmitted through the second liquid crystal light modulation film 102 can be incident on the first liquid crystal light modulation film 101. Figure 1is a structural schematic diagram schematically showing the first liquid crystal dimming film 101 and the second liquid crystal dimming film 102 overlapping with each other. It should be noted that the first and the second in the first / second liquid crystal dimming film are only named for convenience of description, and do not limit the order or position of the dimming film in the actual product.
[0037] The first liquid crystal dimming film 101 and / or the second liquid crystal dimming film 102 can include a substrate layer and an alignment layer, etc. in addition to the conductive layer and the liquid crystal layer (not shown in the figure), and the specific structure of the first liquid crystal dimming film 101 and the second liquid crystal dimming film 102 is not limited. For example, the first liquid crystal dimming film 101 and the second liquid crystal dimming film 102 can each further include two substrate layers (not shown in the figure) arranged opposite to the two conductive layers away from the liquid crystal layer, and the first liquid crystal dimming film 101 and the second liquid crystal dimming film 102 can each further include two alignment layers (not shown in the figure) arranged on both sides of the liquid crystal layer.
[0038] The materials of the substrate layer, the conductive layer and the alignment layer of the first liquid crystal dimming film 101 or the second liquid crystal dimming film 102 are conventional choices. The substrate layer is usually made of a flexible transparent material, such as polycarbonate (PC) material, polyethylene terephthalate (PET) material, triacetate cellulose (TAC) material, cyclic olefin copolymer material, etc. The conductive layer includes a conductive material, such as an indium tin oxide (ITO) coating or a nano-silver coating. The material of the alignment layer can be polyimide (PI) material, which orients the arrangement direction of the liquid crystal molecules in the liquid crystal layer.
[0039] For the first liquid crystal layer 1013 or the second liquid crystal layer 1023, according to the arrangement of liquid crystal molecules in the liquid crystal layer, there are various liquid crystal modes, including: twisted nematic (TN), super twisted nematic (STN), vertical alignment (VA), electrically-controlled birefringence (ECB), and the like. When the electric field applied to the liquid crystal layer changes, the arrangement of the liquid crystal molecules changes, causing the retardation of the entire liquid crystal layer to change, which, in combination with the upper and lower polarizers, can achieve adjustment of the transmittance. Alternatively, without using polarizers, the dichroic dye molecules are doped into the liquid crystal, and when the electric field of the upper and lower electrodes of the liquid crystal layer changes, the arrangement direction of the liquid crystal molecules changes, which in turn causes the arrangement of the dye molecules in the liquid crystal to change synchronously, so that the transmittance adjustment can be achieved without using polarizers, such as TN, ECB, VA, STN, and the like based on dye doping.
[0040] The first liquid crystal light-adjusting film 101 and the second liquid crystal light-adjusting film 102 that spatially overlap with each other can be bonded by an optically transparent adhesive layer. The material of the adhesive layer can be any one of ethylene-vinyl acetate copolymer (EVA), polyvinyl butyral (PVB), optically clear adhesive (OCA), or self-curing adhesive (SCA). Specifically, for the liquid crystal light-adjusting film 100 made of at least two layers, it can be arranged between two oppositely arranged double-sided glasses (or other transparent hard / flexible materials), or bonded to one side of the glass by bonding or other lamination processes to make a light-adjusting device, such as a light-adjustable, logo-hidden display lens and its glasses.
[0041] The logo, i.e., the first pattern in the embodiments of the present application, can be a text pattern such as "WICUE" and "NBA", or a graphic pattern such as a planar basketball shape, a planar baseball shape, or a combination of text and graphic patterns. Further, the second upper conductive layer 1021 and / or the second lower conductive layer 1022 of the second liquid crystal light-adjusting film 102 can also be configured, and the configured second upper conductive layer 1021 and second lower conductive layer 1022 spatially superimpose to form a second pattern, which can also be any one of a text pattern, a graphic pattern, or a combination of text and graphic patterns. In this way, the liquid crystal light-adjusting film 100 can dynamically display and hide multiple pattern logos.
[0042] It can be understood that the first pattern and the second pattern are preferably not overlapped in spatial position. Here, the non-overlapping can be understood as that the two orthographic projections of the first pattern and the second pattern relative to a certain plane can have adjacent contact parts, but no overlapping parts.
[0043] In addition, for the at least two liquid crystal layers included in the liquid crystal dimming film 100 of the embodiment of the present application, dichroic dye molecules can be added in the liquid crystal layers alternatively or simultaneously, and the liquid crystal type including the liquid crystal molecules and the dichroic dye molecules is a Guest-Host Liquid Crystal, which is a liquid crystal system composed of host liquid crystal molecules and guest dye molecules. The host liquid crystal molecules provide the basic structure of the liquid crystal phase, and the guest dye molecules exhibit unique optical properties through interaction with the liquid crystal molecules. When an electric field is applied, the orientation of the host liquid crystal molecules changes, and the guest dye molecules are rearranged accordingly, resulting in changes in the transmission properties of light, thereby realizing optical modulation.
[0044] The dichroic dye molecules can be color dye molecules, so that the liquid crystal layer can transmit light of a certain color while adjusting the light transmittance. Specifically, the color of the transmitted light of the first liquid crystal layer 1013 is a first color, and the color of the transmitted light of the second liquid crystal layer 1023 is a second color. The first color and the second color are usually set to be different, and when the first color and the second color are different, the first color transmitted light and the second color transmitted light can be combined into a third color transmitted light. It can be understood that the first / second color light transmitted refers to the transmitted light of the liquid crystal layer in a certain state, and the liquid crystal layer in other states can be in a transparent state or transmit light of other gray colors.
[0045] It can be understood that the first liquid crystal dimming film 101 is electrically connected with a first driving circuit (not shown in the figure), and the second liquid crystal dimming film 102 is electrically connected with a second driving circuit (not shown in the figure). The first driving circuit and the second driving circuit can be controlled independently, and in the case of independent control of the first / second liquid crystal dimming film, the liquid crystal dimming film 100 of the embodiment of the present application supports single-layer display and double-layer superimposed display. Similarly, the first driving circuit and the second driving circuit can also be jointly controlled, for example, inputting a control signal to generate two corresponding driving voltage signals at the same time, and synchronously controlling the first / second liquid crystal dimming film to display.
[0046] The specific embodiments of the present application will be described below with reference to the accompanying drawings, however, the present application is not limited to the embodiments disclosed below.
[0047] Embodiment 1
[0048] As Figure 1As shown, in this embodiment, the liquid crystal dimming film 100 includes a first liquid crystal dimming film 101 and a second liquid crystal dimming film 102 stacked together, and the first liquid crystal dimming film 101 and the second liquid crystal dimming film 102 are bonded together by an adhesive layer. The areas of the first liquid crystal dimming film 101 and the second liquid crystal dimming film 102 are usually set to be equal, and the material of the adhesive layer is OCA.
[0049] like Figure 2 As shown, the first liquid crystal dimming film 101 includes a first upper conductive layer 1011, a first lower conductive layer 1012 and a first liquid crystal layer 1013 stacked together; the first liquid crystal dimming film 101 also includes a first upper substrate layer and a first lower substrate layer disposed opposite to each other, the first upper conductive layer 1011 is disposed on one side of the first upper substrate layer and the first lower conductive layer 1012 is disposed on one side of the first lower substrate layer.
[0050] In this embodiment, the first upper conductive layer 1011 and the first lower conductive layer 1012 are constructed respectively. Specifically, the first upper / lower conductive layers with the first pattern shape can be coated on the corresponding positions of the first upper / lower substrate layers by coating. For example, the first pattern is "WICUE". Of course, the shape and line thickness of the "WICUE" letter can be designed as needed. Then, the first upper conductive layer 1011 and the first lower conductive layer 1012 at the corresponding positions only have conductive material at the "WICUE" letter and no conductive material at other positions. The first upper conductive layer 1011 and the first lower conductive layer 1012 are constructed to form multiple conductive areas that make up the pattern.
[0051] In this embodiment, the first liquid crystal dimming film 101 is normally in a light-transmitting state. When the first logo pattern needs to be displayed, the liquid crystal molecules corresponding to the "WICUE" shape are rotated by voltage control, and the first liquid crystal dimming film 101 becomes a light-blocking state (relative to the light-transmitting state) at this location, thus displaying the "WICUE" logo pattern. The position of the "WICUE" logo pattern in the first liquid crystal dimming film 101 can be designed as needed, for example, located in the middle, upper right corner, or upper left corner of the first liquid crystal dimming film 101.
[0052] Similarly, such as Figure 2 As shown, the second liquid crystal dimming film 102 includes a second upper conductive layer 1021, a second lower conductive layer 1022 and a second liquid crystal layer 1023 stacked together; the second liquid crystal dimming film 102 also includes a second upper substrate layer and a second lower substrate layer disposed opposite to each other, the second upper conductive layer 1021 is disposed on one side of the second upper substrate layer and the second lower conductive layer 1022 is disposed on one side of the second lower substrate layer.
[0053] In this embodiment, the second liquid crystal dimming film 102 does not make special treatment to the second upper conductive layer 1021 and the second lower conductive layer 1022, and both of the conductive layers are continuous whole layers. The second liquid crystal dimming film 102 can adjust the transmittance of all the light irradiated thereon.
[0054] The liquid crystal dimming film 100 of this embodiment includes the first liquid crystal dimming film 101 and the second liquid crystal dimming film 102, and meets the requirements of both adjusting the transmittance and displaying the hidden logo with a relatively simple structure.
[0055] Embodiment 2
[0056] Compared with Embodiment 1, the basic structure of this embodiment is the same, and the difference is that:
[0057] The liquid crystal dimming film 100 is bonded to the side of the lens close to the human eye to make an adjustable light lens and its glasses.
[0058] As shown in Figure 1 , the liquid crystal dimming film 100 of this embodiment includes the first liquid crystal dimming film 101 and the second liquid crystal dimming film 102 arranged in a stack, and the first liquid crystal dimming film 101 and the second liquid crystal dimming film 102 are bonded by an adhesive layer. The areas of the first liquid crystal dimming film 101 and the second liquid crystal dimming film 102 are usually set to be equal, and the material of the adhesive layer is OCA.
[0059] As shown in Figure 2 , the first liquid crystal dimming film 101 includes the first upper conductive layer 1011, the first lower conductive layer 1012 and the first liquid crystal layer 1013 arranged in a stack, and the first liquid crystal dimming film 101 further includes the oppositely arranged first upper substrate layer and first lower substrate layer. The first upper conductive layer 1011 is arranged on one side of the first upper substrate layer, and the first lower conductive layer 1012 is arranged on one side of the first lower substrate layer.
[0060] In this embodiment, the first upper conductive layer 1011 and the first lower conductive layer 1012 are also respectively configured. The first upper / lower conductive layer in the first pattern shape can be deposited on the corresponding position of the first upper / lower substrate layer by physical deposition, and the finally formed first pattern is an irregular pattern as shown in Figure 3 . It can be understood that in a pair of glasses, the first pattern referred to for the left and right lenses can be the same or different. Meanwhile, the first liquid crystal layer 1013 is a guest-host type liquid crystal, which includes host liquid crystal molecules and guest dichroic dye molecules, and the color of the light transmitted by the first liquid crystal layer 1013 is blue as shown in Figure 3 . In this way, the first liquid crystal dimming film 101 can display a blue first pattern logo.
[0061] Similarly, as shown in Figure 2As shown, the second liquid crystal dimming film 102 includes a second upper conductive layer 1021, a second lower conductive layer 1022 and a second liquid crystal layer 1023 arranged in a stack; the second liquid crystal dimming film 102 further includes a second upper substrate layer and a second lower substrate layer arranged oppositely, the second upper conductive layer 1021 is arranged on one side of the second upper substrate layer, and the second lower conductive layer 1022 is arranged on one side of the second lower substrate layer.
[0062] In this embodiment, the second liquid crystal dimming film 102 does not make special treatment to the second upper conductive layer 1021 and the second lower conductive layer 1022, and both of the conductive layers are continuous whole layers. Meanwhile, the second liquid crystal layer 1023 is a guest-host type liquid crystal, which includes host liquid crystal molecules and guest dichroic dye molecules, and the color of the light transmitted by the second liquid crystal layer 1023 is red, as shown. Figure 4 In this way, the second liquid crystal dimming film 102 can not only adjust the light transmittance of all the light irradiated thereon, but also transmit light of a selective color.
[0063] In this embodiment, the first liquid crystal dimming film 101 and the second liquid crystal dimming film 102 can be in a light transmission state at the same time, as shown. Figure 5 The first liquid crystal dimming film 101 and the second liquid crystal dimming film 102 can also be in a light blocking state at the same time, as shown. Figure 6 At this time, the first liquid crystal dimming film 101 can transmit a blue first pattern alone, the second liquid crystal dimming film 102 can transmit red light alone, and the partially overlapped position can transmit a first pattern of the color after the superposition of blue and red light at the same time.
[0064] The liquid crystal dimming film 100 of this embodiment also includes the first liquid crystal dimming film 101 and the second liquid crystal dimming film 102, and the lens and the glasses including the liquid crystal dimming film 100 can not only adjust the light transmittance and display a hidden logo, but also add the effect of color combination switching.
[0065] The liquid crystal dimming film 100 of the present application includes at least the first liquid crystal dimming film 101 and the second liquid crystal dimming film 102, and a plurality of dimming films are directly laminated and designed; the liquid crystal dimming film 100 of the present application designs and constructs two conductive layers arranged oppositely in the first liquid crystal dimming film 101, and the two conductive layers are spatially superimposed to form a first pattern, the first pattern logo can be displayed or hidden, the second liquid crystal dimming film 102 can be used as a general dimming film to adjust the light transmittance of all the light irradiated thereon, and the combination of the two has fashionable functions such as light transmittance adjustment and logo display. Secondly, the liquid crystal dimming film 100 of the present application can also realize the transmission of a first color light and a second color light by two layers of dimming films respectively, and a third color light after the superposition of the first color light and the second color light, and realize multi-color display.
[0066] The above examples are only used to illustrate the specific embodiments of the present application, and it should be noted that for those of ordinary skill in the art, various modifications and changes can be made without departing from the concept of the present application, and these modifications and changes should also belong to the protection scope of the present application.
Claims
1. A liquid crystal dimming film, characterized in that, The first liquid crystal dimming film includes a first liquid crystal dimming film and a second liquid crystal dimming film stacked together. The first liquid crystal dimming film includes a first upper conductive layer and a first lower conductive layer disposed opposite to each other, and a first liquid crystal layer located between the first upper conductive layer and the first lower conductive layer. The second liquid crystal dimming film includes a second upper conductive layer and a second lower conductive layer disposed opposite to each other, and a second liquid crystal layer located between the second upper conductive layer and the second lower conductive layer. The first upper conductive layer and / or the first lower conductive layer are constructed as two or more conductive regions, and the constructed first upper conductive layer and the first lower conductive layer are spatially superimposed to form a first pattern.
2. The liquid crystal dimming film according to claim 1, characterized in that, The first pattern is any one of a text pattern, a graphic pattern, or a combination of text and graphics.
3. The liquid crystal dimming film according to claim 1, characterized in that, Both the first liquid crystal layer and the second liquid crystal layer are guest-host type liquid crystal layers, which include liquid crystal molecules and dichroic dye molecules.
4. A liquid crystal dimming film according to claim 3, characterized in that, The transmitted light from the first liquid crystal layer is a first color, and the transmitted light from the second liquid crystal layer is a second color.
5. A liquid crystal dimming film according to claim 4, characterized in that, The first color is blue, and the second color is red.
6. A liquid crystal dimming film according to claim 1, characterized in that, The second upper conductive layer and / or the second lower conductive layer are configured as two or more conductive regions, and the configured second upper conductive layer and the second lower conductive layer are spatially superimposed to form a second pattern.
7. A liquid crystal dimming film according to claim 6, characterized in that, The second pattern is any one of a text pattern, a graphic pattern, or a combination of text and graphics.
8. A liquid crystal dimming film according to claim 6, characterized in that, The first pattern and the second pattern do not overlap in spatial position.
9. A liquid crystal dimming film according to any one of claims 1-8, characterized in that, The first liquid crystal dimming film and the second liquid crystal dimming film are bonded together by an optically transparent adhesive layer.
10. A liquid crystal dimming film according to claim 9, characterized in that, The adhesive layer is any one of ethylene-vinyl acetate copolymer, polyvinyl butyral, optically transparent adhesive, or self-curing adhesive.
11. A liquid crystal dimming film according to any one of claims 1-8, characterized in that, The first liquid crystal dimming film is electrically connected to a first driving circuit, and the second liquid crystal dimming film is electrically connected to a second driving circuit.
12. A lens comprising a liquid crystal dimming film according to any one of claims 1-11.
13. A pair of eyeglasses comprising a lens as described in claim 12.