Gradient dimming layer and lenses and glasses thereof

Abstract

The invention relates to the field of liquid crystal dimming, in particular to a gradually-changing dimming layer and glasses comprising the gradually-changing dimming layer. The invention provides two gradually-changed dimming layers with different structures, one gradually-changed dimming layer is characterized in that a plurality of notches are formed in a conductive layer, so that different voltages are formed in different positions of the conductive layer; according to the other mode, the conductive layer is arranged to be a plurality of conductive strips which are separated from one another, and different voltages are applied to the different conductive strips in cooperation with the voltage regulating resistance wires. The gradient dimming layer has the advantages of being simple in structure, good in product consistency and low in cost.

Description

Technical Field

[0001] The present application relates to the field of liquid crystal dimming technology, and in particular to a gradient dimming layer and lenses and glasses comprising the same. Background Art

[0002] The liquid crystal dimming layer usually includes a pair of transparent electrode layers and a liquid crystal layer between the electrode layers. The orientation state of the liquid crystal molecules in the liquid crystal layer changes accordingly with the potential difference between the electrode layers, thereby changing the transmittance of the liquid crystal dimming layer.

[0003] At present, the application fields of liquid crystal dimming layers are becoming more and more extensive. For example, they can be used in dimming glass in conference rooms, buildings and vehicles, and they can also be used in dimming lenses in sunglasses and myopia / hyperopia glasses.

[0004] In the above application scenarios, the general requirement is that the transmittance of the liquid crystal dimming layer is adjustable and has a wide adjustment range. In recent years, another dimming requirement has gradually emerged, that is, there are parts with different transmittances on the same liquid crystal dimming layer to achieve grayscale performance on the same liquid crystal dimming layer.

[0005] In order to achieve different light transmittances for different parts of the liquid crystal dimming layer, some dimming devices have been developed in the prior art. These dimming devices are mainly divided into two types. One is that the liquid crystal molecules in the liquid crystal dimming layer of the dimming device are arranged between a pair of electrode layers with a certain spacing distance. The distance between the electrode layers is not constant, but gradually increases or decreases in the same direction; then, when the liquid crystal molecules are driven by the same voltage between the electrode layers, the states of the liquid crystal molecules in different places change differently, and finally different positions have different light transmittances. The other is that the liquid crystal dimming layer in the dimming device is composed of a plurality of separated and parallel dimming parts. Different dimming parts are applied with different AC voltages from different power supplies, and then the transmittance of different dimming parts is controlled according to the settings.

[0006] The above dimming devices have the problems of high difficulty in preparation and poor product consistency, or the dimming devices have complex structures and high costs. Summary of the invention

[0007] In response to the above technical problems, the present application provides a gradient dimming layer, which has a simple structure, is easy to prepare, has good product consistency and low cost. The gradient dimming layer has the characteristics of different transmittances at different positions and can better meet specific application scenarios.

[0008] To achieve the above objectives, the technical solutions provided by this application are as follows:

[0009] A gradient dimming layer comprises a first substrate layer, a first conductive layer, a liquid crystal layer, a second conductive layer and a second substrate layer which are stacked in sequence, wherein a plurality of spaced-apart gaps are arranged on the first conductive layer along the same direction.

[0010] In the above-mentioned gradient dimming layer, the first conductive layer is provided with a plurality of spaced-apart gaps along the same direction, and there is no conductive layer material at the gap positions, and the entire first conductive layer is not disconnected; in this way, when a voltage is applied to the first conductive layer, different voltage values ​​will be generated at different positions of the first conductive layer due to the resistance voltage drop. The voltages corresponding to different positions of the first conductive layer will drive the liquid crystal molecules in the liquid crystal layer to make different state changes, so that different positions of the gradient dimming layer have different light transmittances.

[0011] Furthermore, the shapes of the notches are all rectangular, and the rectangular notches are parallel to each other.

[0012] Furthermore, the spacing distances between adjacent notches are equal.

[0013] Furthermore, the spacing distances between adjacent notches gradually increase along the same direction.

[0014] Another aspect of the present application is as follows:

[0015] A gradient dimming layer includes a first substrate layer, a first conductive layer, a liquid crystal layer, a second conductive layer and a second substrate layer stacked in sequence, wherein the first conductive layer includes a plurality of spaced conductive strips arranged in the same direction, a voltage regulating resistor is arranged on one side of the conductive strip, and the conductive strips are electrically connected to different positions of the voltage regulating resistor respectively.

[0016] In the first conductive layer of the above-mentioned gradient dimming layer, several conductive strips are arranged separately from each other and are not conductive. Different conductive strips have different voltages applied to them from different positions of the voltage-adjusting resistor, and thus the states of the liquid crystal molecules corresponding to different conductive strips change differently, thereby achieving different transmittances at different positions of the gradient dimming layer.

[0017] Furthermore, the voltage applied to the conductive strips arranged in the same direction gradually increases.

[0018] Furthermore, the shape of the voltage regulating resistance wire is a continuous "bow" shape.

[0019] Furthermore, the voltage regulating resistor wire is arranged on both sides of the conductive strip.

[0020] Furthermore, the conductive strips are all rectangular parallelepipeds, and the conductive strips of the rectangular parallelepipeds are parallel to each other. Furthermore, the conductive strips of the rectangular parallelepipeds are arranged along the same direction, and their widths gradually increase.

[0021] Furthermore, the material of the first conductive layer or the second conductive layer is any one of indium tin oxide, polyethylene dioxythiophene and nano silver.

[0022] Furthermore, the material of the first substrate layer or the second substrate layer is any one of polyethylene terephthalate, polycarbonate and cellulose triacetate.

[0023] Furthermore, the liquid crystal in the liquid crystal layer is any one of twisted nematic liquid crystal, super twisted nematic liquid crystal or vertically aligned liquid crystal.

[0024] Another aspect of the present application provides a lens and glasses, wherein the lens includes the gradient dimming layer as described above, and the glasses include the lens and a frame.

[0025] Compared with the prior art, this application has the following beneficial effects:

[0026] The gradient dimming layer of the present application has the characteristic of showing different transmittances at different positions. One implementation scheme is to form a plurality of gaps on the conductive layer without disconnecting the entire conductive layer; another implementation scheme is to set the conductive layer into a plurality of separated conductive strips and cooperate with a voltage-adjusting resistor wire. The gradient dimming layer of the present application is simple to prepare, has good product consistency and is low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a gradient dimming layer in an embodiment of the present application;

[0028] Figure 2 This is a schematic diagram of the structure of the first conductive layer in one embodiment of the present application;

[0029] Figure 3 This is another structural schematic diagram of the first conductive layer in one embodiment of the present application;

[0030] Figure 4 This is another structural schematic diagram of the first conductive layer in one embodiment of the present application;

[0031] Figure 5 This is a schematic structural diagram of the first conductive layer in another embodiment of the present application;

[0032] Figure 6 This is a schematic structural diagram of the first conductive layer in another embodiment of the present application;

[0033] Figure 7 This is a schematic structural diagram of the first conductive layer in another embodiment of the present application;

[0034] Figure 8 This is a schematic structural diagram of the first conductive layer in another embodiment of the present application;

[0035] Fig. 9This is a schematic structural diagram of the first conductive layer in another embodiment of the present application;

[0036] Fig.10 Schematic diagram of the structure of glasses in one embodiment of the present application.

[0037] The figures are:

[0038] 100 - gradient dimming layer; 101 - first substrate layer; 102 - first conductive layer; 1021 - gap; 1022 - conductive strip; 1023 - voltage regulating resistor; 103 - liquid crystal layer; 104 - second conductive layer; 105 - second substrate layer; 200 - lens; 300 - glasses. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] As described in the background technology, the application scenarios of gradient dimming are gradually increasing, but the corresponding dimming devices in the prior art face a series of challenges such as difficult preparation, poor product consistency, complex device structure, and high cost.

[0041] In view of the above shortcomings, the present application proposes a gradient dimming layer with simple preparation, good product consistency and low cost. In the present application, the surface to which the gradient dimming layer is pasted can be either a flat surface or a curved surface; for example, the gradient dimming layer can be used for glass, curtain walls of buildings, car windows or lenses of glasses.

[0042] like Figure 1 As shown, the gradient dimming layer 100 of an embodiment of the present application includes a first substrate layer 101, a first conductive layer 102, a liquid crystal layer 103, a second conductive layer 104 and a second substrate layer 105 which are stacked in sequence.

[0043] It should be noted that the dimming device usually includes a conductive layer symmetrically arranged on the upper and lower sides of the liquid crystal layer and a substrate layer supporting the conductive layer. The liquid crystal molecules in the liquid crystal layer are anisotropic, and the voltage signal applied to the upper and lower conductive layers will cause the liquid crystal molecules to change their arrangement, thereby changing the transmittance of the entire liquid crystal layer, that is, dimming. The range of the applied voltage is adjusted accordingly according to different liquid crystal molecules, and it is only necessary to ensure that within the applied voltage range, the transmittance can be changed approximately linearly upward or downward by changing the voltage signal.

[0044] In addition, the dimming device may also include different functional layers according to different requirements, such as a barrier layer for blocking ultraviolet light and / or infrared light, or an adhesive layer for bonding, or an orientation layer for orienting liquid crystal molecules in an orderly manner, or a frame glue for preventing liquid crystal molecules from leaking, which is not limited in this application.

[0045] Reference Figure 1 The gradient dimming layer 100 includes a pair of oppositely arranged substrate layers: a first substrate layer 101 and a second substrate layer 105. The structural settings of the two substrate layers are usually the same. The following description will only take the first substrate layer 101 as an example.

[0046] The first substrate layer 101 can provide mechanical support and / or restriction for the liquid crystal molecules in the liquid crystal layer 103. The first substrate layer 101 is usually made of transparent materials, such as polycarbonate (PC), polyethylene terephthalate (PET), triacetate cellulose (TAC), etc. The first substrate layer 101 can be flexible so that it can be assembled with other hard substrates into various architectural dimming glasses, car windows, lenses, etc.

[0047] According to the arrangement of liquid crystal molecules in the liquid crystal layer 103, there are multiple liquid crystal modes, including twisted nematic (TN), super twisted nematic (STN), vertical alignment (VA) and other modes. When the electric field applied to the liquid crystal layer 103 changes, the arrangement of the liquid crystal molecules changes, so that the delay of the entire liquid crystal layer 103 changes. With the upper and lower polarizers, the transmittance of the gradient dimming layer 100 can be adjusted. Or, without using polarizers, dichroic dyes are doped into the liquid crystal. When the electric fields of the upper and lower electrodes of the liquid crystal layer 103 change, 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. Therefore, the transmittance of the gradient dimming layer 100 can be adjusted without using polarizers, such as TN, VA, STN and other methods based on dye doping.

[0048] In some embodiments, the liquid crystal molecules are selected as twisted nematic liquid crystals (TN). In the absence of an applied electric field, the liquid crystal molecules can be arranged in a twisted spiral structure. When polarized light after passing through a polarizer passes through these liquid crystal molecules, the spiral structure can rotate the polarization axis of the polarized light, and the rotation angle can be adjusted by the electric field applied to the liquid crystal molecules; when the polarized light passes through the liquid crystal molecules, the spiral structure causes the polarization axis of the polarized light to rotate by a specific angle. When an electric field is applied, the liquid crystal molecules can be arranged parallel to the electric field, and when the polarized light passes through, the polarization axis of the polarized light can remain unchanged and not rotate. The magnitude of the applied electric field determines the rotation angle of the polarization axis of the polarized light, and thus determines the transmittance of the liquid crystal layer 103.

[0049] In some other embodiments, the liquid crystal layer 103 does not include a polarizer, and the liquid crystal molecules can be configured as TN liquid crystals doped with dichroic dyes, which include liquid crystal molecules acting as a host and dye molecules acting as a guest, and the liquid crystal molecules and the dye molecules can modulate the transmittance according to the guest-host effect. Specifically, under the action of an external electric field, the dichroic dye molecules rotate with the liquid crystal molecules, and the dichroic dye molecules have the property of anisotropy of light absorbance. According to the characteristics of the dichroic dye, light is absorbed or transmitted, thereby changing the transmittance of the liquid crystal layer 103.

[0050] In some other embodiments, the liquid crystal molecules are vertically aligned (VA) liquid crystals. In VA liquid crystals, the liquid crystal molecules are vertically aligned, and the liquid crystal molecules are perpendicular to the plane of the substrate when no electric field is applied. The liquid crystal molecules are rearranged into a plane parallel to the substrate by applying an electric field. Dye molecules can also be introduced into VA liquid crystals to serve as liquid crystals with a guest-host effect.

[0051] Reference Figure 1 The gradient dimming layer 100 also includes relatively arranged conductive layers - a first conductive layer 102 and a second conductive layer 103. In the present application, the structural arrangement of the conductive layer can occur on the first conductive layer 102 or the second conductive layer 103. The present application takes the first conductive layer 102 as an example for explanation.

[0052] As for the material of the conductive layer, the material of the first conductive layer 102 or the second conductive layer 104 is any one of indium tin oxide (ITO), poly(3,4-ethylenedioxythiophene) (PEDOT) or nano silver.

[0053] For the structural shape of the conductive layer, Figure 2 As shown, in one embodiment of the present application, the first conductive layer 102 is a cuboid with a certain thickness, and the projection diagram of the cuboid along the thickness direction and projected onto the plane is as shown in FIG. Figure 2As shown, an X direction along the horizontal direction and a Y direction perpendicular to the X direction are distinguished on the above plane.

[0054] The first conductive layer 102 may be provided with a plurality of spaced-apart gaps 1021 along the Y direction. As the name implies, one end of the gap 1021 is completely open. Figure 2 The rightmost end of the notch 1021 is shown, and the other end of the notch 1021 is the main body of the first conductive layer 102. Figure 2 The shape of the notch 1021 is not particularly limited, for example Figure 2 The rectangle shown may also be a square, a circle, an ellipse or other irregular shapes, and the shapes of the notches 1021 at different positions in the first conductive layer 102 may be the same or different. On the premise that all the notches 1021 have a certain regular shape, all the notches 1021 may be parallel to each other, and further, the spacing between adjacent notches 1021 may gradually increase along the Y direction.

[0055] It can be understood that the present application also includes other structures similar to the above structures. For example, first, a plurality of spaced blank spots can be provided on a straight line along the X direction on the first conductive layer 102 (the shape of the blank spots can be rectangular, square or circular, etc., and there is no specific limitation on this), and then a plurality of straight lines with the above structures can be provided on the first conductive layer 102 along the Y direction. For another example, first, the conductive material on a straight line along the X direction includes a plurality of conductive material blocks, and the plurality of conductive material blocks are connected by thin wires, and then the first conductive layer 102 can include a plurality of conductive materials with the above structures along the Y direction.

[0056] like Figure 3 As shown, in one embodiment of the present application, a conductive pin may be provided on the first conductive layer 102, which is used to apply a voltage value to the first conductive layer 102. Figure 3 The dashed line with an arrow in the middle is a possible schematic route of the current in the first conductive layer 102. In this arrangement, since the material of the first conductive layer 102 is a material with a certain resistivity, the first conductive layer 102 has different voltages at different positions, which ultimately causes the gradient dimming layer 100 to have different light transmittances at different positions. In addition, two conductive pins can be simultaneously arranged on the upper and lower sides of the first conductive layer 102. For the method of applying voltage: the voltage can be applied to the upper conductive pin or the lower conductive pin, and the voltage can also be applied to the upper and lower conductive pins at the same time.

[0057] In addition, for the second conductive layer 104 disposed opposite to the first conductive layer 102, the second conductive layer 104 may be a rectangular parallelepiped with a complete plane, and the spatial overlapping area of ​​the first conductive layer 102 and the second conductive layer 104 may completely cover the projected area of ​​the first conductive layer 102, or only cover the projected area of ​​the first conductive layer 102. Figure 4 The projection area is indicated by the dashed box.

[0058] like Figure 5 As shown, in another embodiment of the present application, the first conductive layer 102 may be composed of a plurality of electrode strips 1022 separated from each other and arranged in the same direction, and different electrode strips 1022 are not conductive to each other.

[0059] The electrode strips 1022 may be rectangular parallelepipeds with a certain thickness. The projection diagrams of the plurality of rectangular parallelepipeds along the thickness direction and projected onto the plane are as follows: Figure 5 As shown, an X direction along the horizontal direction and a Y direction perpendicular to the X direction are distinguished on the above plane.

[0060] The shape of the electrode strips 1022 is not particularly limited, for example Figure 5 The rectangle shown may also be a square, a circle, an ellipse or other irregular shapes, and the shapes of the electrode strips 1022 at different positions may be the same or different. On the premise that all the electrode strips 1022 have a certain regular shape, all the electrode strips 1022 may be parallel to each other, and further, the widths of adjacent electrode strips 1022 gradually increase along the Y direction.

[0061] like Figure 5 As shown, a voltage regulating resistor wire 1023 is set on the right side of a plurality of electrode strips 1022, and two conductive pins can be set on both sides of the voltage regulating resistor wire 1023, and different voltage values ​​can be applied. A plurality of electrode strips 1022 are electrically connected to different positions of the voltage regulating resistor wire 1023, so different electrode strips 1022 can obtain different voltage values, which ultimately leads to different light transmittances of the gradient dimming layer 100 at different positions. Furthermore, a plurality of conductive pins (not just two at the end points) can be set at different positions on the voltage regulating resistor wire 1023, and a gradient effect starting from different positions can be achieved by applying voltage to the conductive pins at different positions.

[0062] like Figure 6 As shown, the shape of the voltage regulating resistor wire 1023 can be a continuous "bow" shape. Furthermore, a voltage regulating resistor wire 1023 can be respectively provided on the left and right sides of a plurality of electrode strips 1022, such as Figure 7 As shown, with such arrangement, when the gradient dimming layer 100 is used as a flexible display device and the resistance wire on one side is damaged and broken, causing a partial area to be unable to display, the resistance wire on the other side can function as a fault-tolerant replacement.

[0063] In addition, for the second conductive layer 104 disposed opposite to the first conductive layer 102 , the second conductive layer 104 may be a cuboid with a complete plane, and the spatial overlapping area of ​​the first conductive layer 102 and the second conductive layer 104 may completely cover the projected area of ​​the first conductive layer 102 .

[0064] It should be noted that, in the above embodiments, the voltage range required to be applied to the liquid crystal to approximately linearly change its transmittance is different for different selected liquid crystals. Therefore, in different embodiments, the voltage value applied to the two conductive pins can be flexibly adjusted as needed.

[0065] In order to achieve different transmittances at different positions of the gradient dimming layer 100 of the present application, starting from the underlying principle, by changing the voltage value applied to the liquid crystal layer 103 at different positions, the technical solutions adopted are: one is to directly set a plurality of notches 1021 on the body of the first conductive layer 102, and the other is to form the first conductive layer 102 with a plurality of conductive strips 1022 and cooperate with a voltage-adjusting resistor 1023; the technical solution of the present application has the advantages of simple preparation, good product consistency and low cost.

[0066] For example, Fig.10 As shown, the gradient dimming layer 100 can be applied in glasses 300. The glasses 300 generally include a frame and a lens 200. The frame is provided with a lens 200 including the gradient dimming layer 100. The control device is provided in the frame and electrically connected to the gradient dimming layer 100. Specifically, the control device may include a control panel, a battery, and a control key or other user input device. The control panel is electrically connected to the control key, the gradient dimming layer 100, and the battery. The user can control the transmittance of the gradient dimming layer 100 through the control key or the input device. In another case, the above-mentioned control device includes a control panel, a battery, and a light sensor. The control panel is electrically connected to the light sensor, the gradient dimming layer 100, and the battery. The glasses 300 can automatically control the transmittance of the gradient dimming layer 100 according to the signal of the light sensor.

[0067] The specific structure of the gradient dimming layer 100 in some embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0068] Embodiment 1:

[0069] like Figure 1 A gradient dimming layer 100 is shown. The gradient dimming layer 100 of this embodiment includes a first substrate layer 101, a first conductive layer 102, a liquid crystal layer 103, a second conductive layer 104 and a second substrate layer 105 which are stacked in sequence.

[0070] The materials of the symmetrically arranged first substrate layer 101 and the second substrate layer 105 are PET, the materials of the oppositely arranged first conductive layer 102 and the second conductive layer 104 are ITO, and the liquid crystal layer 103 is TN liquid crystal doped with dichroic dyes.

[0071] In this embodiment, the first conductive layer 102 and the second conductive layer 104 are both rectangular parallelepipeds with a certain thickness.

[0072] The projection of the first conductive layer 102 on the plane is as follows: Figure 2 As shown, it is assumed that the horizontal direction along the plane is the X direction and the vertical direction to the X direction is the Y direction.

[0073] The first conductive layer 102 is provided with a plurality of notches 1021 along the Y direction. It can be seen that the leftmost side of the first conductive layer 102 still maintains an integrated structure without being broken.

[0074] The notches 1021 are rectangular in shape and are arranged parallel to each other. Meanwhile, the shapes and sizes of several notches 1021 are the same, and the distances between adjacent notches 1021 are equal.

[0075] like Figure 3 As shown, an electrode pin ① is provided at the lower left corner of the first conductive layer 102, and the voltage at ① can be adjusted as needed. Figure 3 The dashed line with an arrow in it shows the possible direction of the current in the first conductive layer 102 .

[0076] The second conductive layer 104 is a flat planar structure. The spatial overlap area of ​​the first conductive layer 102 and the second conductive layer 104 is as follows: Figure 4 As shown in the dotted box, the voltage on the second conductive layer can be set to 0V or other suitable voltages.

[0077] After the voltage is applied, the voltage of the first conductive layer 102 along the Y direction changes gradually, and the light transmittance of the corresponding liquid crystal layer 103 along the Y direction also changes gradually.

[0078] Embodiment 2:

[0079] like Figure 1 A gradient dimming layer 100 is shown. The gradient dimming layer 100 of this embodiment includes a first substrate layer 101, a first conductive layer 102, a liquid crystal layer 103, a second conductive layer 104 and a second substrate layer 105 which are stacked in sequence.

[0080] The materials of the symmetrically arranged first substrate layer 101 and the second substrate layer 105 are PET, the materials of the oppositely arranged first conductive layer 102 and the second conductive layer 104 are ITO, and the liquid crystal layer 103 is TN liquid crystal doped with dichroic dyes.

[0081] Different from the first embodiment, the distance between a plurality of rectangular notches 1021 of the same shape and size and between adjacent notches 1021 (ie, the conductive layer material between the notches 1021) is gradually increased. Figure 8 As shown; the parts that are the same as those in Example 1 are not repeated here.

[0082] Assuming that when no voltage is applied, the transmittance of the liquid crystal layer 103 is the largest. After the voltage is applied, the voltage of the first conductive layer 102 along the Y direction gradually decreases in the downward direction, and the transmittance of the corresponding liquid crystal layer 103 along the Y direction gradually increases in the downward direction, so that different places have different grayscale expressions. At the same time, compared with Example 1, the area of ​​the same grayscale along the Y direction in Example 2 also gradually increases in the downward direction.

[0083] Embodiment 3:

[0084] like Figure 1 A gradient dimming layer 100 is shown. The gradient dimming layer 100 of this embodiment includes a first substrate layer 101, a first conductive layer 102, a liquid crystal layer 103, a second conductive layer 104 and a second substrate layer 105 which are stacked in sequence.

[0085] The materials of the symmetrically arranged first substrate layer 101 and the second substrate layer 105 are PET, the materials of the oppositely arranged first conductive layer 102 and the second conductive layer 104 are ITO, and the liquid crystal layer 103 is TN liquid crystal doped with dichroic dyes.

[0086] In this embodiment, the overall shape of the first conductive layer 102 and the second conductive layer 104 are both rectangular parallelepipeds with a certain thickness.

[0087] The projection diagram of the first conductive layer 102 along the thickness direction and projected onto the plane is as follows: Figure 5 As shown, it is assumed that the horizontal direction along the plane is the X direction and the vertical direction to the X direction is the Y direction.

[0088] The first conductive layer 102 is composed of a plurality of electrode strips 1022 separated from each other. The electrode strips 1022 are rectangular in shape and arranged in parallel along the Y direction. The electrode strips 1022 have equal widths in the Y direction and are spaced equidistantly from each other in the Y direction.

[0089] At the same time, if Figure 5As shown, a voltage regulating resistor 1023 is provided on one side of a plurality of electrode strips 1022, and a suitable voltage is applied to the electrode pins ① and ② at both ends of the voltage regulating resistor 1023. The plurality of electrode strips 1022 are electrically connected to different positions of the voltage regulating resistor 1023, respectively, so that the voltage obtained by the electrode strips 1022 downward along the Y direction can be gradually reduced. In this way, the transmittance of the liquid crystal layer 103 at different positions can be gradually reduced or gradually increased.

[0090] Embodiment 4:

[0091] like Figure 1 A gradient dimming layer 100 is shown. The gradient dimming layer 100 of this embodiment includes a first substrate layer 101, a first conductive layer 102, a liquid crystal layer 103, a second conductive layer 104 and a second substrate layer 105 which are stacked in sequence.

[0092] The materials of the symmetrically arranged first substrate layer 101 and the second substrate layer 105 are PET, the materials of the oppositely arranged first conductive layer 102 and the second conductive layer 104 are ITO, and the liquid crystal layer 103 is TN liquid crystal doped with dichroic dyes.

[0093] like Figure 6 As shown, different from Example 3, the first conductive layer 102 is composed of a plurality of electrode strips 1022 separated from each other, and a voltage regulating resistor 1023 is arranged on the right side of the electrode strip 1022, and the shape of the voltage regulating resistor 1023 is a continuous "bow" shape. Different electrode strips 1022 are electrically connected to different positions of the voltage regulating resistor 1023, so that the voltage obtained by the electrode strip 1022 in the Y direction can be gradually reduced, and the corresponding light transmittance of different electrode strips in the Y direction can be gradually reduced or gradually increased.

[0094] Embodiment 5:

[0095] like Figure 1 A gradient dimming layer 100 is shown. The gradient dimming layer 100 of this embodiment includes a first substrate layer 101, a first conductive layer 102, a liquid crystal layer 103, a second conductive layer 104 and a second substrate layer 105 which are stacked in sequence.

[0096] The materials of the symmetrically arranged first substrate layer 101 and the second substrate layer 105 are PET, the materials of the oppositely arranged first conductive layer 102 and the second conductive layer 104 are ITO, and the liquid crystal layer 103 is TN liquid crystal doped with dichroic dyes.

[0097] like Figure 7As shown, different from Example 3, the first conductive layer 102 is composed of a plurality of electrode strips 1022 separated from each other, and voltage-adjusting resistors 1023 (which can be in various shapes, and this embodiment only takes a rectangle as an example) are respectively arranged on the left and right sides of the plurality of electrode strips 1022. A voltage-adjusting resistor 1023 is arranged on both sides of the electrode strip 1022, and when the gradient dimming layer 100 is used as a flexible display device and the resistor on one side is damaged and broken, causing a partial area to be unable to display, the resistor on the other side can function as a fault-tolerant replacement.

[0098] Embodiment 6:

[0099] like Figure 1 A gradient dimming layer 100 is shown. The gradient dimming layer 100 of this embodiment includes a first substrate layer 101, a first conductive layer 102, a liquid crystal layer 103, a second conductive layer 104 and a second substrate layer 105 which are stacked in sequence.

[0100] The materials of the symmetrically arranged first substrate layer 101 and the second substrate layer 105 are PET, the materials of the oppositely arranged first conductive layer 102 and the second conductive layer 104 are ITO, and the liquid crystal layer 103 is TN liquid crystal doped with dichroic dyes.

[0101] like Fig. 9 As shown, different from Example 3, the first conductive layer 102 is composed of a plurality of electrode strips 1022 separated from each other, the electrode strips 1022 are rectangular, arranged in parallel along the Y direction, the width of the electrode strips 1022 gradually increases downward in the Y direction, and the spacing distances between adjacent electrode strips 1022 in the Y direction are equal.

[0102] A voltage regulating resistor 1023 is provided on one side of the plurality of electrode strips 1022, and a suitable voltage is applied to both ends of the voltage regulating resistor 1023. The plurality of electrode strips 1022 are electrically connected to different positions of the voltage regulating resistor 1023, respectively, so that the voltage obtained by the electrode strips 1022 downward along the Y direction can be gradually reduced. In this way, the light transmittance at different positions of the liquid crystal layer 103 corresponding to the downward direction along the Y direction can be gradually reduced or gradually increased; at the same time, different from the third embodiment, the area of ​​the same gray scale expression also gradually increases downward along the Y direction.

[0103] In summary, the gradient dimming layer 100 of the embodiment of the present application realizes that different positions of the same dimming layer can have different light transmittances. One implementation scheme is to form a plurality of gaps on the conductive layer, but the entire conductive layer is not disconnected; another implementation scheme is to set the conductive layer into a plurality of separated conductive strips and cooperate with a voltage-adjusting resistor wire. The gradient dimming layer 100 of the embodiment of the present application is simple to prepare, has good product consistency and low cost.

[0104] The above embodiments are only used to illustrate the specific implementation methods of the present application. It should be pointed out that, for ordinary technicians in this field, various modifications and changes can be made without departing from the concept of the present application, and these modifications and changes should also fall within the scope of protection of the present application.

Claims

1. A gradient dimming layer, characterized in that: The invention 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, wherein a plurality of spaced-apart gaps are arranged on the first conductive layer along the same direction.

2. The gradient dimming layer according to claim 1, characterized in that: The shapes of the notches are all rectangular, and the rectangular notches are parallel to each other.

3. The gradient dimming layer according to claim 2, characterized in that: The spacing distances between adjacent notches are equal.

4. The gradient dimming layer according to claim 2, characterized in that: The spacing distances between adjacent notches gradually increase along the same direction.

5. A gradient dimming layer, characterized in that: It includes a first substrate layer, a first conductive layer, a liquid crystal layer, a second conductive layer and a second substrate layer which are stacked in sequence, the first conductive layer includes a plurality of spaced conductive strips arranged in the same direction, a voltage regulating resistor is arranged on one side of the conductive strip, and the different conductive strips are electrically connected to different positions of the voltage regulating resistor respectively.

6. The gradient dimming layer according to claim 5, characterized in that: The voltages applied to the conductive strips arranged in the same direction gradually increase.

7. The gradient dimming layer according to claim 5, characterized in that: The shape of the voltage regulating resistance wire is a continuous "bow" shape.

8. The gradient dimming layer according to claim 5, characterized in that: The voltage regulating resistor wires are arranged on both sides of the conductive strip.

9. The gradient dimming layer according to claim 5, characterized in that: The conductive strips are in the shape of a cuboid, and the conductive strips in the cuboid are parallel to each other.

10. The gradient dimming layer according to claim 9, characterized in that: The width of the conductive strips gradually increases along the same direction.

11. The gradient dimming layer according to any one of claims 1 to 10, characterized in that: The material of the first conductive layer or the second conductive layer is any one of indium tin oxide, polyethylene dioxythiophene or nano silver.

12. The gradient dimming layer according to any one of claims 1 to 10, characterized in that: The material of the first substrate layer or the second substrate layer is any one of polyethylene terephthalate, polycarbonate or cellulose triacetate.

13. The gradient dimming layer according to any one of claims 1 to 10, characterized in that: The liquid crystal in the liquid crystal layer is any one of twisted nematic liquid crystal, super twisted nematic liquid crystal or vertically aligned liquid crystal.

14. A lens, characterized in that: It comprises a gradient dimming layer according to any one of claims 1-13.

15. A pair of glasses, characterized in that: The invention comprises a lens according to claim 14 and a lens frame, wherein the lens is installed in the lens frame.

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