Colorful electrochromic device

Abstract

The utility model relates to the technical field of display, in particular to a color electrochromic device which comprises an adjustable light-transmitting substrate connected with an external adjustable power supply and used for driving ions to migrate when voltage is adjusted; the colored resin lens is parallel to the adjustable light-transmitting substrate, the colored resin lens has various colors, and the ground color of the colored resin lens is changed when the colored resin lens receives ion migration of the adjustable light-transmitting substrate; and the sealing glue layer is arranged between the colored resin lens and the adjustable light-transmitting substrate and is used for fixedly bonding the colored resin lens and the adjustable light-transmitting substrate. The electrochromic glasses have the effect that the requirements of the electrochromic glasses for different ground colors are met through controllable color adjustment.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a color electrochromic device. Background Technology

[0002] Color electrochromic devices are a smart material system that dynamically controls optical properties through an applied electric field, and they have promising applications in photochromic glasses.

[0003] In related technologies, the lenses of photochromic glasses include two types of inorganic all-solid-state electrochromic glasses based on tungsten oxide and nickel oxide systems. The colored state is grayish-blue, and the faded state is light yellow. The base color of the electrochromic glasses is only a single color of light yellow.

[0004] Regarding the aforementioned technologies, when adjusting the base color of all-solid-state electrochromic glasses, only a light yellow base color can be produced, which is not conducive to meeting the needs for different base colors. Utility Model Content

[0005] To facilitate meeting the needs of electrochromic glasses for different background colors, this application provides a color electrochromic device.

[0006] The color electrochromic device provided in this application adopts the following technical solution:

[0007] A color electrochromic device, comprising:

[0008] An adjustable light-transmitting substrate is connected to an external adjustable power supply, and ion migration is driven when the voltage is adjusted.

[0009] A colored resin lens is arranged parallel to the adjustable light-transmitting substrate. The colored resin lens has multiple dyeing properties, and its base color changes when it receives ion migration from the adjustable light-transmitting substrate.

[0010] A sealant layer is disposed between the colored resin lens and the adjustable light-transmitting substrate for fixing and bonding the colored resin lens and the adjustable light-transmitting substrate.

[0011] By adopting the above technical solution, the adjustable light-transmitting substrate can cause the sample to migrate by adjusting the voltage, thereby changing the light transmittance of the colored resin lens. This allows the stained colored resin lens to form color gradients at different light transmittances, satisfying consumers' needs for different base colors of the lens.

[0012] Optionally, the colored resin lens is a hyperbolic resin lens or a plano-concave or plano-convex lens.

[0013] By adopting the above technical solution, colored resin lenses can be selected with different curved surfaces to meet the needs of different groups for lenses, and can also be adapted to different sealing adhesive layer encapsulation methods.

[0014] Optionally, the sealant layer is an OCR liquid adhesive or an OCA adhesive;

[0015] When the colored resin lens is a hyperbolic resin lens, the sealant layer is an OCR liquid adhesive;

[0016] When the colored resin lens is a plano-concave or plano-convex lens, the sealant layer is OCA adhesive.

[0017] By adopting the above technical solution, the OCR liquid adhesive has strong fluidity, which helps to reduce the generation of gaps when used with hyperbolic resin lenses and adjustable light substrates for sealing and filling. After curing, it can form a flexible adhesive layer, reducing the probability of delamination due to stress concentration and improving lens stability.

[0018] OCA adhesive can reduce light transmission damage to plano lenses, and when used with plano-concave and convex lenses for sealing, it can achieve bubble-free bonding through hot pressing.

[0019] Optionally, an adhesive transition layer is further provided between the sealant layer and the adjustable light-transmitting substrate, and the adhesive transition layer is an epoxy resin layer.

[0020] By adopting the above technical solution, when the epoxy resin layer is used as an adhesive transition layer, it can improve the interface compatibility between the sealant (such as OCR / OCA) and the light-transmitting substrate (such as glass or PET), and at the same time reduce the performance degradation caused by environmental aging.

[0021] Optionally, the tunable light-transmitting substrate includes a transparent conductive layer, an electrochromic layer, and an ion storage layer stacked sequentially, wherein the electrochromic layer is composed of tungsten trioxide (WO3) or nickel oxide (NiO), and the sheet resistance of the transparent conductive layer is 10-50 Ω / sq.

[0022] By adopting the above technical solution, the transparent conductive layer, the electrochromic layer, and the ion storage layer work together to achieve a high electrochromic response speed and good ion migration efficiency. By selecting tungsten trioxide or nickel oxide as the material layer, the electrochromic layer can have both good color-changing efficiency and chemical stability. The sheet resistance of the transparent conductive layer is between 10 and 50 ohms per square meter, which can reduce the occurrence of uneven voltage distribution caused by excessive resistance of the substrate.

[0023] Optionally, the OCR liquid adhesive has a refractive index of 1.48-1.52 and a cured thickness of 0.1-0.5 mm; the OCA adhesive has a visible light transmittance of ≥90% and a thickness of 0.05-0.3 mm.

[0024] By adopting the above technical solution, by adjusting the refractive index and curing thickness of the OCR liquid adhesive, the interfacial light scattering of the sealant layer can be reduced and the light transmittance can be improved. At the same time, by adjusting the visible light transmittance and thickness of the OCA adhesive, the sealant layer can be made to have no obvious brightness loss during the color change process.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The adjustable light-transmitting substrate causes the light to migrate by adjusting the voltage, thereby changing the light transmittance of the colored resin lens. This allows the stained colored resin lens to form color gradients at different light transmittances, satisfying consumers' needs for different base colors of the lens.

[0027] 2. Colored resin lenses are made of different curved surfaces to meet the needs of different groups and can be adapted to different sealing adhesive layer encapsulation methods;

[0028] 3. CR liquid adhesive has strong fluidity, which helps reduce the formation of gaps when used with hyperbolic resin lenses and adjustable light substrates for sealing and filling. After curing, it can form a flexible adhesive layer, reducing the probability of delamination due to stress concentration and improving lens stability. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the layered structure of the color electrochromic device under the condition that the colored resin lens in this application is a plano-convex lens.

[0030] Figure 2 This is a schematic diagram of the layered structure of the color electrochromic device under the condition that the colored resin lens is a curved lens in this application.

[0031] Figure 3 This is a schematic diagram of the internal layered structure of the adjustable light-transmitting substrate in this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Adjustable light-transmitting substrate; 11. Transparent conductive layer; 12. Electrochromic layer; 13. Ion storage layer; 2. Colored resin lens; 3. Sealant layer; 4. Adhesive transition layer. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0034] This application discloses a color electrochromic device. (Refer to...) Figure 1The color electrochromic device includes an adjustable light-transmitting substrate 1, a colored resin lens 2, and a sealant layer 3. The adjustable light-transmitting substrate 1 serves as the base layer, the colored resin lens 2 serves as the cover plate, and the sealant layer 3 is disposed between the colored resin lens 2 and the adjustable light-transmitting substrate 1 to act as an adhesive. By adjusting the voltage of the adjustable light-transmitting substrate 1, the ions on the colored resin lens 2 undergo transitions, thereby changing the light transmittance of the resin lens and presenting different background colors to meet the needs of the public.

[0035] It should be further explained that the adjustable light-transmitting substrate 1 is an electrochromic substrate, capable of receiving external power. When the external power supply adjusts the voltage, it can change the direction of ion transitions, causing the light transmittance of the adjustable light-transmitting substrate 1 to increase or decrease, thereby achieving the function of adjusting the base color of the colored resin lens 2. It should be noted that the colored resin lens 2 can be dyed in multiple colors as needed, thus enabling the adjustment of the base color of different colored resin lenses 2.

[0036] In addition, refer to Figure 1 and Figure 2 When bonding the colored resin lens 2, the adjustable light-transmitting substrate 1, and the sealant layer 3, they must be kept parallel to each other to reduce the occurrence of gaps during bonding. The colored resin lens 2 can be a hyperbolic resin lens or a plano-concave / plano-convex lens, with different adhesives used for the corresponding sealant layer 3. When a hyperbolic resin lens is chosen for the colored resin lens 2, an OCR liquid adhesive is used for the sealant layer 3. The refractive index of the OCR liquid adhesive is in the range of 1.48-1.52, and the thickness of the cured OCR liquid adhesive is between 0.1-0.5 mm. This OCR liquid adhesive has better light transmittance and reduces interfacial light scattering in the sealant layer 3. When an OCA adhesive is used for the sealant layer 3, the visible light transmittance of the OCA adhesive is greater than or equal to 90%, and the thickness is selected in the range of 0.05-0.3 mm, which reduces brightness loss of the sealant layer 3 during edge illumination.

[0037] Reference Figure 2 An adhesive transition layer 4 is also provided between the sealant layer 3 and the adjustable light-transmitting substrate 1. In this embodiment, the adhesive transition layer is an epoxy resin layer. Using epoxy resin as a raw material improves the compatibility of the connection interface between the OCR liquid adhesive / OCA adhesive and the light-transmitting substrate, and at the same time can reduce the decay of light transmittance or color change caused by environmental aging.

[0038] In addition, refer to Figure 3It should be further explained that the tunable light-transmitting substrate 1 includes a transparent conductive layer 11, an electrochromic layer 12, and an ion storage layer 13 stacked sequentially. The electrochromic layer is composed of tungsten trioxide (WO3) or nickel oxide (NiO). The transparent conductive layer 11 has a certain sheet resistance range; in this embodiment, the sheet resistance range is between 10 and 50 ohms per square meter, which can reduce the occurrence of uneven voltage distribution caused by excessively high resistance of the substrate.

[0039] The implementation principle of a color electrochromic device according to an embodiment of this application is as follows: a colored resin lens 2 of different colors is used as a cover plate and an adjustable light-transmitting substrate 1 is covered. A bubble-free bonding is performed between the adjustable light-transmitting substrate 1 and the colored resin lens 2 by a corresponding sealing adhesive layer 3. Under the change of the external voltage, the adjustable light-transmitting substrate 1 changes the transition ions received by the resin lens, thereby adjusting the resin lens to complete the background color change. This allows the colored resin lens 2 of different colors to present a variety of background colors to meet the needs of different users.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A colour electrochromic device characterised in that, The application relates to a color resin lens, which comprises the following parts: An adjustable light-transmitting substrate (1) connected with an external adjustable power supply, which drives ion migration when the voltage is adjusted; A color resin lens (2) arranged in parallel with the adjustable light-transmitting substrate (1), the color resin lens (2) having multiple colors, and the color resin lens (2) changing the base color when receiving the ion migration of the adjustable light-transmitting substrate (1); A sealing adhesive layer (3) arranged between the color resin lens (2) and the adjustable light-transmitting substrate (1) and used for fixing and bonding the color resin lens (2) and the adjustable light-transmitting substrate (1).

2. A colour electrochromic device according to claim 1, characterised in that: The color resin lens (2) is a double-curved resin lens or a plane-concave or plane-convex lens.

3. A colour electrochromic device according to claim 2, characterised in that: The sealing adhesive layer (3) is OCR liquid glue or OCA glue. When the color resin lens (2) is a double-curved resin lens, the sealing adhesive layer (3) is OCR liquid glue. When the color resin lens (2) is a plane-concave or plane-convex lens, the sealing adhesive layer (3) is OCA glue.

4. A colour electrochromic device according to claim 1, characterised in that: An adhesive transition layer (4) is further arranged between the sealing adhesive layer (3) and the adjustable light-transmitting substrate (1), and the adhesive transition layer (4) is an epoxy resin layer.

5. A colour electrochromic device according to claim 1, characterised in that: The adjustable light-transmitting substrate (1) comprises a transparent conductive layer (11), an electrochromic layer (12) and an ion storage layer (13) which are sequentially stacked, the electrochromic layer (12) is composed of tungsten trioxide (WO3) or nickel oxide (NiO), and the square resistance of the transparent conductive layer (11) is 10-50 ohm / sq.

6. A colour electrochromic device according to claim 5, characterised in that: The refractive index of the OCR liquid glue is 1.48-1.52, and the thickness after curing is 0.1-0.5 mm; the visible light transmittance of the OCA glue is greater than or equal to 90%, and the thickness is 0.05-0.3 mm.

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