A flexible electroluminescent film with aerodynamic deformation and starry sky

Abstract

The present invention discloses a flexible, pneumatically deformable, starry sky electroluminescent dimming film, comprising a laminated substrate and a base material; transparent electrodes disposed between the substrates and a flexible isolation layer between the electrodes; at least two independent chambers, each chamber configured with an independent gas valve assembly; a starry sky luminescent layer and a liquid crystal dye unit integrated into the chamber and the transparent electrode. The present invention has the following beneficial effects: multifunctional integration: simultaneous realization of electrically controlled dimming and pneumatic optical interference, with rich dynamic effects; flexible and deformable: the TPU / PET base material supports bending and is suitable for curved surface applications; high efficiency and energy saving: low gas drive power consumption and fast electric field dimming response; high customization: the starry sky pattern, chamber arrangement, and interference pattern can be customized to suit different decorative requirements; reliability and durability: the multi-layer isolation structure prevents electrode short circuits, and the gas valve assembly sealing design ensures long-term stability.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible electro-luminescent films, and in particular to a flexible electro-luminescent film with aerodynamic deformation and a starry sky. Background Art

[0002] In smart homes, decorative lighting, wearable devices and other fields, dimming films are widely used due to their adjustable light transmittance and energy-saving properties. Traditional electroluminescent films mainly adjust light transmittance by controlling the arrangement of liquid crystal molecules through electric fields, achieving basic brightness and darkness changes. However, such films have the following limitations:

[0003] 1. Single function: It relies only on electric field regulation and lacks dynamic optical effects (such as starry sky twinkling and colorful interference stripes), making it difficult to meet decorative and interactive requirements.

[0004] 2. Lack of flexibility: Most use rigid substrates (such as glass), which cannot adapt to the deformation requirements of curved structures (such as car sunroofs, curved walls) or wearable devices.

[0005] 3. Dynamic effects are complex to achieve: If dynamic pattern changes (such as periodic flashing) are required, it is usually necessary to rely on high-energy mechanical structures or external light sources, which have high energy consumption and bulky structures.

[0006] 4. Limited customizability: Pattern and color adjustments rely on fixed designs, making it difficult for users to flexibly customize personalized layouts such as the starry sky and garden according to the scene.

[0007] In recent years, pneumatic drive technology has been introduced into the optical field due to its low power consumption and fast response characteristics. For example, it can generate interference fringes by changing the shape of the cavity by inflating and deflating air. However, existing pneumatic dimming films still have the following problems:

[0008] The pneumatic structure and the electroluminescent dimming unit are not effectively integrated and cannot work together; the chamber design is simple (such as a single-layer uniform structure), making it difficult to generate complex dynamic effects (such as asynchronous local deformation); there is a lack of flexible substrate support, and the deformation range is limited.

[0009] Therefore, there is an urgent need for a flexible, aerodynamically deformable starry sky electroluminescent film that has flexible adaptability, dynamic optical effects and low energy consumption. Through the collaborative innovation of aerodynamic deformation and electroluminescent technology, the problems of functional singleness and application scenario limitations of traditional technology can be solved. Summary of the Invention

[0010] The main technical problem solved by the present invention is to provide a flexible electro-luminescent film with aerodynamic deformation and starry sky, so as to solve one or more of the above-mentioned problems in the prior art.

[0011] In order to solve the above technical problems, the present invention adopts a technical solution: a flexible electroluminescent film with aerodynamic deformation, the innovation of which is:

[0012] A laminated substrate and a base material, wherein the substrate comprises an upper substrate and a lower substrate located on both sides of the substrate, and the substrate and the base material are made of a flexible organic transparent material;

[0013] A transparent electrode disposed between the substrate and the base material and a flexible isolation layer disposed between two horizontally adjacent transparent electrodes; the transparent electrode comprises an upper transparent electrode disposed on a side of the upper substrate close to the base material and a lower transparent electrode disposed on a side of the lower substrate close to the base material;

[0014] At least two layers of chambers are independently arranged between the transparent electrode and the substrate, each chamber is equipped with an independent gas valve group, and the chamber is a semicircular, triangular or elliptical structure, which produces interference fringes of equal thickness or equal inclination when the chamber is filled and discharged;

[0015] A starry sky luminescent layer and a liquid crystal dye unit are integrated between the cavity and the upper transparent electrode; the starry sky luminescent layer is a starry pattern, a garden layout or a monochrome color display area, and the starry sky luminescent layer emits light in a dark state; the starry sky luminescent layer and the liquid crystal dye unit work together, and the transmittance of the liquid crystal dye unit is controlled by the electric field applied by the transparent electrode, and combined with the aerodynamic deformation control of the cavity to realize the superimposed display of dynamic patterns and optical interference fringes.

[0016] In some embodiments, the substrate and base material are made of TPU or PET.

[0017] In some embodiments, the transparent electrode is a PEDOT, ITO, or zinc oxide conductive layer.

[0018] In some embodiments, the chamber includes a first chamber, a second chamber, and a third chamber; the air valve group includes a bottom air inlet valve and a bottom air outlet valve arranged in the first chamber, a middle air inlet valve and a middle air outlet valve arranged in the second chamber, and an upper air inlet valve and an upper air outlet valve arranged in the third chamber.

[0019] In some embodiments, the chambers are arrayed or cross-arranged to support asynchronous inflation and deflation operations.

[0020] In some embodiments, the liquid crystal dye unit comprises:

[0021] a liquid crystal layer disposed between the starry sky light-emitting layer and the transparent electrode;

[0022] A support structure provided in the liquid crystal layer for supporting and fixing the liquid crystal;

[0023] Dye molecules doped in the liquid crystal layer.

[0024] In some embodiments, the substrate has a uniform thickness or a gradient structure with a thick middle and thin edges.

[0025] The beneficial effects of the present invention are: multifunctional integration: simultaneous realization of electric-controlled dimming and pneumatic optical interference, with rich dynamic effects; flexible and deformable: the TPU / PET substrate supports bending and is suitable for curved surface application scenarios; high efficiency and energy saving: low gas-driven power consumption and fast electric field dimming response; high customizability: starry sky patterns, chamber arrangements and interference patterns can be customized to suit different decorative requirements; reliability and durability: the multi-layer isolation structure prevents electrode short circuits, and the air valve group sealing design ensures long-term stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0027] Figure 1 This is a structural schematic diagram of a flexible electroluminescent film with aerodynamic deformation and starry sky according to the present invention. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] like Figure 1 As shown, the embodiment of the present invention includes: the flexible electroluminescent film with aerodynamic deformation and starry sky includes the following structure:

[0030] The flexible organic transparent substrate 1 and the organic transparent base material 7 are stacked and made of TPU or PET, which are flexible and can be bent and deformed.

[0031] The substrate 7 has a uniform thickness or a gradient structure with a thick middle and thin edges, which enhances optical uniformity.

[0032] Transparent electrode 2 and flexible isolation layer 3: The transparent electrode 2 is provided between the substrate 1 and the base material 7 and adopts a PEDOT, ITO or zinc oxide conductive layer for applying an electric field.

[0033] The flexible isolation layer 3 is located between the two transparent electrodes 2 to ensure the insulation of the electrodes.

[0034] Independent chamber structure: at least two layers of independent chambers (first chamber 4, second chamber 5, third chamber 6), each chamber is equipped with an independent gas valve group: the bottom layer air inlet valve 9 and the bottom layer air outlet valve 8 control the gas flow in the first chamber 4; the middle layer air inlet valve 11 and the middle layer air outlet valve 10 control the second chamber 5; the upper layer air inlet valve 13 and the upper layer air outlet valve 12 control the third chamber 6.

[0035] The shape of the chamber is semicircular, triangular or elliptical, and it produces interference fringes of equal thickness or equal inclination when inflated or deflated.

[0036] Starry sky luminescent layer 14 and liquid crystal dye unit: The starry sky luminescent layer 14 is integrated between the cavity and the transparent electrode 2, and the pattern can be stars, a garden layout or a monochrome color display area.

[0037] The liquid crystal dye unit includes: a liquid crystal layer 15: located between the starry sky light-emitting layer 14 and the transparent electrode 2; a support structure 17: supporting and fixing the liquid crystal; and dye molecules 16: doped in the liquid crystal layer 15 to achieve color control.

[0038] The working principle of this technical solution is:

[0039] Pneumatic deformation dimming: nitrogen or dry air is filled into the chamber through an independent air valve group, causing the chamber to expand and deform; the chamber contracts when the air is pumped out.

[0040] The deformation of the cavity changes the local thickness of the film, producing interference fringes of equal thickness and equal inclination, forming dynamic light and dark changes and colorful effects.

[0041] The chambers can be arranged in an array or cross-arranged, supporting asynchronous inflation and deflation (such as only the second chamber 5 is inflated) to achieve local pattern changes; cross-arrangement means that the center lines connecting adjacent chambers are cross-shaped, such as the center line connecting the first chamber and the second chamber intersects with the center line connecting the second chamber and the third chamber.

[0042] Electroluminescence: When an electric field is applied to the transparent electrode 2, the dye molecules 16 in the liquid crystal layer 15 are oriented and the transmittance is adjusted (e.g., from transparent to opaque).

[0043] Starry sky effect synergy: The starry sky luminous layer 14 emits light in a dark state to form a starry pattern; combined with the periodic changes of the chamber interference fringes (such as the frequency control of filling and discharging), the dynamic effect of the starry sky twinkling is simulated.

[0044] The advantages of this technical solution are:

[0045] Multifunctional integration: Simultaneously realizes electronically controlled dimming (liquid crystal dye) and pneumatic optical interference, with rich dynamic effects.

[0046] Flexible and deformable: TPU / PET substrate supports bending and is suitable for curved surface applications (such as car sunroofs and curved walls).

[0047] High efficiency and energy saving: gas drive has low power consumption and electric field dimming has fast response (millisecond level).

[0048] High Customizability: Starry sky patterns, chamber layouts, and interference patterns can be customized to suit different decorative needs.

[0049] Reliability and durability: Multi-layer isolation structure prevents electrode short circuit, and the valve group sealing design ensures long-term stability.

[0050] Example Operation

[0051] Starry sky mode: the electric field is turned off, and the starry sky luminous layer 14 is lit; the middle layer gas valve group 11, 10 is periodically controlled to charge and discharge, and the second chamber 5 is deformed to produce interference fringes, simulating the twinkling of starlight.

[0052] Dimming mode: Turn on the electric field, the liquid crystal layer 15 becomes transparent, and the starry sky effect is hidden; the expansion of the first chamber 4 is adjusted by the air valve to form a gradual shading area.

[0053] Summary: This application solves the problem of single function of traditional dimming film through the synergistic effect of pneumatic deformation and electro-dimming, combines dynamic optical effects and flexible adaptability, and provides an innovative solution for smart decoration.

[0054] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A flexible electroluminescent film with aerodynamic deformation and starry sky, characterized by: include A substrate (1) and a base material (7) are stacked, wherein the substrate (1) comprises an upper substrate and a lower substrate located on both sides of the substrate (7), and the substrate (1) and the base material (7) are made of flexible organic transparent materials; A transparent electrode (2) provided between a substrate (1) and a base material (7), and a flexible isolation layer (3) provided between two horizontally adjacent transparent electrodes (2); the transparent electrode (2) comprises an upper transparent electrode provided on a side of the upper substrate close to the base material (7) and a lower transparent electrode provided on a side of the lower substrate close to the base material (7); At least two layers of chambers are independently arranged between the transparent electrode 2 and the substrate (7), each chamber is equipped with an independent gas valve group, and the chamber is a semicircular, triangular or elliptical structure, and generates interference fringes of equal thickness or equal inclination when the chamber is filled and discharged; A starry sky luminescent layer (14) and a liquid crystal dye unit are integrated between a cavity and an upper transparent electrode; the starry sky luminescent layer (14) is a starry pattern, a garden layout or a monochrome color display area, and the starry sky luminescent layer (14) emits light in a dark state; the starry sky luminescent layer (14) and the liquid crystal dye unit cooperate to control the transmittance of the liquid crystal dye unit through the electric field applied by the transparent electrode (2), and combine with the pneumatic deformation control of the cavity to realize the superposition display of dynamic patterns and optical interference fringes.

2. The flexible electroluminescent film with aerodynamic deformation according to claim 1, characterized in that: The substrate (1) and base material (7) are made of TPU or PET.

3. The flexible electroluminescent film with aerodynamic deformation according to claim 1, characterized in that: The transparent electrode (2) is a PEDOT, ITO or zinc oxide conductive layer.

4. The flexible electroluminescent film with aerodynamic deformation according to claim 1, characterized in that: The chamber comprises a first chamber (4), a second chamber (5), and a third chamber (6); the air valve group comprises a bottom air inlet valve (9) and a bottom air outlet valve (8) arranged in the first chamber (4), a middle air inlet valve (11) and a middle air outlet valve (10) arranged in the second chamber (5), and an upper air inlet valve (13) and an upper air outlet valve (12) arranged in the third chamber (6).

5. The flexible electroluminescent film with aerodynamic deformation and starry sky according to claim 1, characterized in that: The chambers are arranged in an array or cross-arranged to support asynchronous inflation and deflation operations.

6. The flexible electroluminescent film with aerodynamic deformation and starry sky according to claim 1, characterized in that: The liquid crystal dye unit comprises: a liquid crystal layer (15) disposed between the starry sky luminous layer (14) and the transparent electrode (2); A support structure (17) disposed in the liquid crystal layer (15) for supporting and fixing the liquid crystal; Dye molecules (16) doped in the liquid crystal layer (15).

7. The flexible electroluminescent film with aerodynamic deformation and starry sky according to claim 1, characterized in that: The substrate (7) has a uniform thickness or a gradient structure with a thick middle and thin edges.

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