CN116017798A - Diffuse-extending gradually-brightening electroluminescent sheet - Google Patents
Diffuse-extending gradually-brightening electroluminescent sheet Download PDFInfo
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- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 claims description 4
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- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Electroluminescent Light Sources (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a diffuse bright electroluminescent sheet, which can realize the dynamic luminescence of a group of electrode single areas, wherein the dynamic luminescence gradually emits light like water diffuse flow, and the structure sequentially comprises: a transparent protective layer, a transparent conductive layer, an electroluminescent layer, a back conductive layer, and a protective layer; at least one layer of the transparent conductive layer or the back conductive layer is formed by an ion transparent conductive film, and the ion transparent conductive film contains ion conductive materials; when the insulated co-located superposition electrodes of the transparent conductive layer and the back conductive layer are applied with voltage, the electroluminescent sheet automatically generates dynamic gradually-spreading gradually-brightening luminescence and gradually-shrinking extinction. The invention can be used for displaying signals of vehicles of aircraft, vehicles and vessels, and can be widely used in the field of night lighting requirements such as advertisements, lamps, toys, electric appliances, instruments, safety direction indication and the like.
Description
Technical Field
The invention belongs to the field of electroluminescent display device and its preparation and application
Technical Field
The prior inorganic powder electroluminescent surface light source device is mostly manufactured on the surface of a flexible plastic film, a typical commercialized device is composed of a basic PET film, a transparent conductive ITO layer, a luminous layer, a dielectric layer and a silver back electrode layer, and then a sandwich type solid plane luminous device structure is formed by a printing and coating process. The light-emitting area device with a single independent electrode can only generate instant light emission and extinction, and the driver can only be used for adjusting voltage to form the intensity change of the overall brightness, so that the dynamic diffuse gradually light-emitting phenomenon and effect cannot be formed. The existing advertising flash spreading progressive luminous effect is achieved by designing and printing a plurality of sections of multi-region arrangement, independently leading out each region electrode, connecting a plurality of independently leading-out electrodes with a plurality of chips, gradually increasing and conducting according to the chip multipath control time, and sequentially emitting light from the arranged regions according to time sequence to form a visual dynamic progressive luminous effect. Such independent control of tens or even hundreds of areas requires a large number of electrodes to be connected to the chip, is labor intensive and is subject to failure, and the connection lines and circuits occupy a large amount of space.
The invention relates to a diffuse bright electroluminescent sheet, which can realize the dynamic luminescence of a group of electrode single areas, wherein the dynamic luminescence gradually emits light like water diffuse flow, and the structure sequentially comprises: a transparent protective layer, a transparent conductive layer, an electroluminescent layer, a back conductive layer, and a protective layer; at least one layer of the transparent conductive layer or the back conductive layer is formed by an ion transparent conductive film, and the ion transparent conductive film contains ion conductive materials; when the insulated co-located superposition electrodes of the transparent conductive layer and the back conductive layer are applied with voltage, the electroluminescent sheet automatically generates dynamic gradually-spreading gradually-brightening luminescence and gradually-shrinking extinction.
The invention can be widely used in the fields of advertisement, lamps, toys, electric appliances, instruments, safety direction indication and the like, and realizes simple dynamic progressive diffuse lighting and extinguishing.
Disclosure of Invention
A diffusely-lit electroluminescent device, comprising, in order: a transparent protective layer 5, a transparent conductive layer 4, an electroluminescent layer 3, a back conductive layer 2 and a protective layer 1; at least one layer of the transparent conductive layer or the back conductive layer is formed by an ion transparent conductive film, and the ion transparent conductive film contains ion conductive materials; when the insulated co-located superposition electrode 6 of the transparent conductive layer and the back conductive layer is loaded with voltage, the light emitting area and the voltage have a direct proportion dynamic change relation, the gradually-bright area of the electroluminescent sheet automatically generates the effects of dynamic gradually-extending gradually-bright light emission and gradually-retracting extinction. The gradually-bright area refers to that the luminous intensity forms a fixed distribution of brightness from weak to strong within a certain distance when static constant voltage is loaded, the fixed distribution can gradually move along with the change of the voltage, and a dynamic water-like gradually-diffuse gradually-bright luminous effect is formed visually.
The ion transparent conductive film is a mixture of potassium, sodium and lithium ion conductive materials and plastics, is prepared into a self-adhesive ion transparent conductive film by a casting machine solid state method, contains different ions to form different conductivities, the conductivities can change along with voltage, the ion transparent conductive film is different from the existing ITO film, a metal conductive layer or other high polymer conductive ink, and has no surface resistance value. An ion transparent conductive film only contains one ion conductive material, and is self-adhered on the surface of an electroluminescent layer through vacuum hot pressing.
The ion transparent conductive film is a mixture film of ion conductive material and plastic, and the conductivity is controlled between 10 and 100S/cm 2 . The ion conductive material is one of potassium perchlorate, sodium perchlorate and lithium perchlorate, the plastic in the ion transparent conductive film is PVA, the materials are uniformly mixed and prepared into a film by using a casting machine solid state method, and the conductivity of the ion conductive material is different even if the ion conductive material with the same content is different in the film preparation method, so that the effect is different. The greater the concentration of the ion conductive material is, the faster the conductivity is, the larger the dynamic diffusion brightness-increasing time is, the larger the conductivity is, the no brightness-increasing area is formed, and the diffusion lighting effect is also avoided; the concentration of conductive ions is small, the conductivity is low, the dynamic diffusion and brightness-increasing time is slow, and the brightness-increasing area is large; the ion transparent conductive film used in a single layer has better effect, wherein the ion conductive material content accounts for 10-30% of the total weight, and the ion transparent conductive film used in a multi-layer composite manner has better effect, wherein the ion conductive material content accounts for 5-15% of the total weight. The conductive ions are effectively selected to be added into other plastics, and the preparation mode is controlled, so that the proper conductivity can produce similar effects. The ion transparent conductive film is a non-flat surface, so that bubble marks are not easy to generate in the multi-layer film compounding process.
The transparent conductive layer is formed by superposing and compositing at least two different ion transparent conductive films; different ion transparent conductive films have different conductivities, lithium ion conductivity is better under the same concentration, the ion transparent conductive films with two different conductivities are overlapped and compounded, the brightness-increasing area is obvious, and the size of the brightness-increasing area can be controlled by using the same electrode to load voltage. The single ion transparent conductive film and the electroluminescent layer are used in a combined mode, and the size of the brightness-increasing area is controlled to be single. The static constant voltage is applied, the luminous intensity forms the positive luminance distribution from weak to strong within a certain distance, and the fixed distribution of the gradually-bright area gradually moves along with the voltage change to form the visual dynamic gradually-bright luminous effect. The back conductive layer can be formed by overlapping and compounding two different ion transparent conductive films, the two different ion transparent conductive films have different conductivities, and the effect of controlling the distance of the gradually-bright area is better than that of a single ion transparent conductive film.
The electroluminescent layer is formed by mixing the electroluminescent material and PVA plastic, and then the electroluminescent layer film is drawn by a tape casting machine, the electroluminescent layer film is a non-flat surface, and the non-flat surface is suitable for overlapping and conforming to the film again, so that bubbles are not easy to generate. The back conductive layer uses an ion transparent conductive film to form double-sided diffuse bright light emission, and the double-sided light emission is semitransparent electroluminescence. The back of the electroluminescent layer is provided with a dielectric layer which forms diffuse and gradually bright light with different double-sided brightness, and the luminous brightness of the dielectric layer is relatively weak, but the diffuse area of the two sides of the luminous layer is consistent because the diffuse area has an electric field with common intensity. The dielectric layer is a thin film containing a material such as barium titanate. The period of the gradually-brightening area of the electroluminescent sheet automatically generates dynamic gradually-extending gradually-brightening luminescence and gradually-retracting extinction; the gradually-bright area refers to that the luminous intensity forms a fixed distribution of brightness from weak to strong within a certain distance when static constant voltage is loaded, and the fixed distribution gradually spreads and moves along with the voltage change to form a visual dynamic gradually-spreading gradually-bright luminous effect.
The transparent protective layer and the protective layer in the invention are one of PET, TPU, PVA, fluoroplastic film and organic silicon film, at least one surface of the transparent protective layer and the protective layer has non-flat surface, and the non-flat surface has stabilizing effect in the invention because the electroluminescent material zinc sulfide is easy to generate electrochemical reaction when being used in PVA. The transparent protective layer and the protective layer of the invention have the same function as the traditional device, and PVA is used to be compounded with the ion transparent conductive film more easily. The transparent protective layer and the protective layer are self-adhered on the surface of the ion transparent conductive film through vacuum hot pressing; the transparent protective layer and the protective layer are made of elastic plastic film materials to form an elastic electroluminescent sheet, so that the service life and the stability can be improved.
The back conductive layer is one of an ion transparent conductive film or conductive slurry, the back conductive layer can use conductive metal slurry of a conventional process, the transparent conductive layer is an ion transparent conductive film, and the two ion transparent conductive films are compounded to form diffuse bright gradually and fast light emission. The transparent conductive layer is one of an ion transparent conductive film or an ITO conductive film, the transparent conductive layer can be a conventional ITO conductive film, the back conductive layer is an ion transparent conductive film, and the two ion transparent conductive films are compounded to form the diffuse gradually-bright rapid light-emitting film. The invention has the advantage that the ion transparent conductive film is used for the transparent conductive layer and the back conductive layer.
The special voltage regulation control driver used in the invention is connected with the electrodes, and the chip is used for controlling the time, speed and frequency of voltage circulation, so that the electroluminescent sheet automatically generates dynamic gradually-spreading gradually-brightening luminescence and gradually-retracting extinction in a period, and the voltage uniformly controls the lifting, thereby generating a better gradually-brightening effect. The driver in the invention can use a conventional driver, and the effect of the movement of the gradually-brightening area is also generated, but the driver can not be circularly repeated, and the speed is not regularly controlled.
The transparent conductive layer and the back conductive layer are respectively provided with the electrode 6 connecting sheet, the electrodes of the transparent conductive layer and the back conductive layer form an insulating co-located superposition structure, so that voltage and current are uniformly loaded, the co-located superposition structure is the guarantee of important movable luminescence with special effects, the electrodes are easily burnt by the traditional separated two electrodes, meanwhile, the diffuse and gradual brightening effects are not obvious, and the conductivity of the ion transparent conductive film is poorer than that of the traditional ITO and silver paste. The electrode led out by the invention has single-sided conduction, and an insulating isolation layer 7 is arranged between the two electrodes, so that the two electrodes are ensured not to be connected in a short circuit; when the transparent conductive layer and the back conductive layer are both ion transparent conductive films, the electrodes are firmly connected, otherwise, the electrodes are easy to contact and heat, and the electroluminescence sheets of the ion transparent conductive films with the same concentration or the same type can automatically generate dynamic slow-speed gradually-spread gradually-bright luminescence.
The preparation process of the invention is as follows: 1) Firstly, respectively preparing an electroluminescent layer film, a transparent conductive layer film and an ion transparent conductive film of a back conductive layer film; the film can be independently manufactured by using a casting machine, or the electroluminescent layer film can be prepared first, and then the transparent conductive layer film and the back conductive layer film are directly cast on the two sides, so that the effect is better than that of a later-stage vacuum composite film. 2) Electrode electrodes are respectively stuck and arranged on the same positions of the transparent conducting layer film and the back conducting layer film, so that partial overlapping area insulation can be prepared in advance; short circuit faults can occur using conventional electrode tabs. 3) And pressing the transparent conducting layer film, the electroluminescent layer film and the back conducting layer film into an integrated electroluminescent film with a sandwich structure through a vacuum pressure compounding machine. The multi-layer later composite film of each part, and the bubble discharge is the quality assurance. 4) The transparent protective layer, the electroluminescent film with the sandwich structure and the protective layer are integrated and connected with a special driver to form the diffuse-extending gradually-brightening electroluminescent sheet.
Drawings
FIG. 1 is a view showing a structure of a diffuse luminance electro-luminescent sheet
FIG. 2 shows the effect of light emission from a diffuse bright electroluminescent sheet
In the figure: 1. the light-emitting diode comprises a protective layer, a back conductive layer, a 3 electroluminescent layer, a 4 transparent conductive layer, a 5 transparent protective layer, a 6 electrode and a 7 insulating isolation layer.
Detailed description of the preferred embodiments
An electroluminescent sheet with a diffuse brightness-increasing effect, which has the structure that: a transparent protective layer 5, a transparent conductive layer 4, an electroluminescent layer 3, a back conductive layer 2 and a protective layer 1. At least one layer of transparent conductive layer or back conductive layer is formed from ion transparent conductive film, said ion transparent conductive film contains ion conductive material, when the insulating co-located superimposed electrode of transparent conductive layer and back conductive layer is loaded with voltage, the light-emitting area and voltage are in proportional dynamic change relationship, and the electroluminescent sheet can automatically produce dynamic gradually-spreading gradually-lighting light-emitting and gradually-shrinking extinguishing effect in the gradually-lighting area. The conventional transparent conductive layer is an ITO film of PET base material and has good conductivity, the conventional back conductive layer is a printed metal silver conductive layer, and the printed metal silver conductive layer has good conductivity, and the conductivity cannot change along with voltage and can only generate full brightness or adjust the light intensity degree through the voltage. The invention discloses a light-emitting device, which comprises a light-emitting area, a light-emitting area and a light-emitting area, wherein the light-emitting area is characterized in that when static constant voltage is loaded, the light-emitting intensity forms a fixed distribution of brightness from weak to strong within a certain distance, the fixed distribution gradually spreads along with the change of the voltage to form a visual dynamic spreading and light-emitting effect, and the light-emitting effect is like that of water spreading and uniform-speed extending to a distance until all light is emitted. The photograph of FIG. 2 shows the effect of the diffuse and bright electroluminescent panel and the bright area. The area of the fade is typically 1-5 cm depending on the electroluminescent sheet device size.
The ion transparent conductive film is a mixture of potassium, sodium and lithium ion conductive materials and plastics, wherein the ion conductive material is one of potassium perchlorate, sodium perchlorate and lithium perchlorate, and the plastics in the ion transparent conductive film are PAV. Preparing a self-adhesive ion transparent conductive film by a casting machine all-solid state method at the temperature of 230 ℃, wherein the ion transparent conductive film contains different ions to form different conductivities, and one ion transparent conductive film contains only one ion conductive material; the thickness of the ion transparent conductive film is 10-100 micrometers, and the thickness is uniform, and the ion transparent conductive film is self-adhered on the surface of the electroluminescent layer through vacuum hot pressing.
The ion transparent conductive film is a mixture film of ion conductive materials and plastics, wherein the content of the ion conductive materials accounts for 5-30% of the total weight; the conductivity is controlled to be 30-50S/cm 2 The ion conductive material has better diffuse brightness effect, the ion conductive material is potassium perchlorate, sodium perchlorate and lithium perchlorate, and the plastic in the ion transparent conductive film is PVA. The greater the concentration of the ion conductive material, the faster the dynamic diffusion brightening time; the concentration of conductive ions is small, and the dynamic diffusion and brightening time is slow; the ion transparent conductive film is a non-flat surface, so that the polyvinyl alcohol is not easy to generate bubble marks in the multi-layer film compounding process. Different ion conductive materials are combined with different plastics, and the prepared ion transparent conductive film is controlled by using different methods, so that the formation and stability of the conductivity are complex, and the performance difference is large, for example, acrylamide polymer and the like are used for the plastics.
The transparent conductive layer is formed by superposing and compositing at least two different ion transparent conductive films; different ion transparent conductive films have different conductivities, the ion transparent conductive films work by voltage in electroluminescence, have lower current carrying capacity, and are different from conventional ITO and metal conductors, and the ion transparent conductive films have no surface resistance value. The lithium ion conduction is better under the same concentration, the sodium ion conduction is weaker, the same electrode loading voltage is used for superposition and composite loading of the ion transparent conductive films with two different conductivities, so that the size of a gradually-bright area can be controlled, the luminous intensity forms the brightness positive-factor distribution from weak to strong within a certain distance when the static constant voltage is loaded, and the fixed distribution gradually spreads along with the voltage change to form the visual dynamic gradually-spreading gradually-bright luminous effect. The back conductive layer is formed by superposing and compositing at least two different ion transparent conductive films; the two different ion transparent conductive films have different conductivities, and the effect of controlling the distance of the gradually-bright area is better than that of a single ion transparent conductive film.
The electroluminescent layer is formed by mixing electroluminescent material and PVA plastic, and then drawing the electroluminescent layer film by a tape casting machine, wherein the thickness is generally 30-50 microns, the thickness is uniform, and the electroluminescent material uses conventional luminescent materials such as zinc copper sulfide and the like, such as commercial KPT marks D502 and D512 and the like. The PVA plastic is firmly combined and integrated for later compounding, and the electroluminescent material and other plastic can be used, such as acrylic acid, and the like, so that the electroluminescent material is easy to crack in a layering way. The electroluminescent layer film is a non-flat uniform surface, and the non-flat surface is suitable for overlapping and conforming to the film again; the uneven surface in the invention means that the surface similar to the frosting effect has convex-concave treatment of 20-100 nanometers, and can be realized by die rolling printing, so that the whole film is even and uniform. The composite material is still transparent after being compounded, does not influence brightness, is not easy to generate bubbles, is related to the characteristic combination of the electroluminescent self-material, and is suitable for the electrochemical reaction release generated during the electroluminescent operation. The back conductive layer uses an ion transparent conductive film to form double-sided diffuse bright light emission, and the double-sided light emission is semitransparent electroluminescence; the dielectric layer is arranged on the back of the electroluminescent layer to form diffuse gradually-bright light with different double-sided brightness, and the dielectric layer has relatively weak light-emitting brightness, but the light-emitting spreading areas on two sides are consistent, and have a common electric field.
The transparent protective layer and the protective layer in the invention are one of PET, PVA, TPU, fluoroplastic films and organic silicon films, the transparent protective layer has obvious dampproof effect, PVA is easy to absorb moisture, the light-emitting device is aged, the luminous intensity is rapidly reduced, the fluoroplastic films and the organic silicon films can keep close tension elasticity with other film layers, the bending of the device is convenient, and the transparent protective layer has good folding resistance and dampproof property. At least one surface of the transparent protective layer and at least one surface of the protective layer are provided with non-flat surfaces, and the non-flat surfaces have a stabilizing effect in the invention because the electroluminescent material zinc sulfide is easy to generate electrochemical reaction. The transparent protective layer and the protective layer of the invention have the same function as the traditional device, and PVA is used to be compounded with the ion transparent conductive film more easily. The transparent protective layer and the protective layer are self-adhered on the surface of the ion transparent conductive film through vacuum hot pressing; the transparent protective layer and the protective layer are made of elastic plastic film materials, so that the electroluminescent sheet with elasticity is formed.
The back conductive layer is one of an ion transparent conductive film or conductive slurry, the back conductive layer can use the conductive slurry of the conventional process, the transparent conductive layer is the ion transparent conductive film, and the two ion transparent conductive films are compounded to form diffuse bright gradually and fast light emission; the transparent conductive layer is one of an ion transparent conductive film or an ITO conductive film, the transparent conductive layer is a conventional ITO conductive film, the back conductive layer is an ion transparent conductive film, and the two ion transparent conductive films are compounded to form the diffuse gradually-bright rapid light emission.
The special voltage regulation control driver used in the invention is connected with the electrode, and utilizes the chip to control the voltage cycle lifting time, speed and frequency, the electroluminescent film cycle automatically generates dynamic gradually-spreading gradually-brightening luminescence and gradually-shrinking extinction, and the electroluminescent film cycle is recycled, the voltage is 0-400V, the lifting is controlled at a constant speed with the frequency of 50-1000 Hz, and the voltage is 0-150V to generate a good gradually-brightening effect. The driver in the invention can use a conventional driver, and the effect of the diffuse movement of the gradually-bright area is also generated, but the driver can not be circularly repeated, and the speed is not regularly controlled. The electroluminescent sheet with the diffuse brightness effect has better high voltage resistance than a device with the traditional silk-screen process.
The transparent conductive layer and the electrode of the back conductive layer form an insulating co-located superposition structure, the co-located superposition structure can enable the diffusion of the gradually-bright area to have single-direction expansion, the constant and uniform electric field of the light-emitting area is ensured, devices are not damaged due to heating, and the figure 1 is one of the basic structures of the invention. The electrode co-position superposition structure is the guarantee of important movable luminescence with special effect, and the two electrodes separated in the prior art are not suitable for use, and the stability of the device can be guaranteed due to the matching of the special structure and the electrodes. The electrode led out by the invention has single-sided conduction, and an insulating isolation layer is arranged between the two electrodes, so that the two electrodes are ensured not to be connected in a short circuit; when the transparent conductive layer and the back conductive layer are both ion transparent conductive films, the electrodes are firmly connected, otherwise, the electrodes are easy to contact and heat, and the electroluminescence sheets of the ion transparent conductive films with the same concentration or the same type can automatically generate dynamic slow-speed gradually-spread gradually-bright luminescence.
The preparation process of the invention is as follows: 1) Firstly, respectively preparing an electroluminescent layer film, a transparent conductive layer film and a back conductive layer film; the film can be independently manufactured by using a casting machine, or the electroluminescent layer film can be prepared first, and then the transparent conductive layer film and the back conductive layer film are directly cast on the two sides, so that the effect is better than that of a later composite film. 2) Electrode electrodes are respectively stuck and arranged on the same positions of the transparent conducting layer film and the back conducting layer film, so that partial overlapping area insulation can be prepared in advance; short circuit faults can occur using conventional electrode tabs. 3) And pressing the transparent conducting layer film, the electroluminescent layer film and the back conducting layer film into an integrated electroluminescent film with a sandwich structure through a vacuum pressure compounding machine. The multi-layer later composite film of each part, and the bubble discharge is the quality assurance. 4) The transparent protective layer, the electroluminescent film with the sandwich structure and the protective layer are integrated and connected with a special driver to form the diffuse-extending gradually-brightening electroluminescent sheet.
The invention has the advantages that:
the invention realizes a diffuse brightness gradual-brightening electroluminescent effect, adopts simple luminous sheet and electrode structure design, realizes the control of gradual-brightening area by the solid-state preparation method of the ion transparent conductive film, and the device prepared by the structure and the method has uniform thickness and is suitable for mass production.
The diffuse brightness and gradual brightness electroluminescence has the characteristics of good weather resistance, pressure resistance, bending resistance, good elasticity and large voltage bearing, can be used for signal lamps and indication marks of airplanes, vehicles and ships and subway vehicles, and is also suitable for building luminous decoration, road safety marks and the like.
The diffuse bright electroluminescent sheet has low production cost and high process controllability, is suitable for large-scale production, changes the traditional printing and coating process, adopts non-toxic and pollution-free materials, and can be used for indicating marks of instrument illumination, consumer electronics products and household appliances, panel illumination and the like.
The invention is suitable for the dynamic effect of advertisement, has simple control, and is suitable for clothing, toys, furniture, beach umbrellas and luminous decoration on christmas days.
Claims (10)
1. A diffusely-lit electroluminescent device, comprising, in order: a transparent protective layer, a transparent conductive layer, an electroluminescent layer, a back conductive layer, and a protective layer; at least one layer of the transparent conductive layer and the back conductive layer is formed by an ion transparent conductive film, and the ion transparent conductive film contains ion conductive materials; and voltage is applied to the insulated co-located superposition electrodes of the transparent conductive layer and the back conductive layer, so that the electroluminescent sheet can generate dynamic gradually-spread gradually-bright light emission and gradually-shrinking extinction.
2. The diffuse brightness gradually-increasing electroluminescent sheet as claimed in claim 1, wherein the ion transparent conductive film is prepared by mixing conductive materials containing potassium, sodium and lithium ions with plastic, the plastic of the ion transparent conductive film is PVA, and the self-adhesive ion transparent conductive film is prepared by a casting machine solid state method; the ion transparent conductive film is self-adhered on the surface of the electroluminescent layer through vacuum hot pressing.
3. A diffusely bright electroluminescent panel as claimed in claim 1, wherein the ion transparent conductive film has a conductivity of 10 to 100S/cm 2 The method comprises the steps of carrying out a first treatment on the surface of the The ion conductive material is one of potassium perchlorate, sodium perchlorate and lithium perchlorate; the ion conductive material has high concentration and high conductivity, and the dynamic diffusion and brightness-increasing time is quick; conductive materialThe ion concentration is small, the conductivity is low, and the dynamic diffusion and brightness-increasing time is slow; the ion transparent conductive film is a non-planar surface.
4. The diffuse brightness gradually-increasing electroluminescent sheet as claimed in claim 1, wherein the transparent conductive layer is formed by laminating and compounding at least two different ion transparent conductive films; the back conductive layer is formed by superposing and compositing at least two different ion transparent conductive films; the two different ion transparent conductive films have different conductivities, so that the distance control of the gradually-bright area is realized.
5. The diffuse-brightness gradually-brightening electroluminescent sheet as claimed in claim 1, wherein the electroluminescent layer is prepared by mixing electroluminescent material with PVA plastic, and drawing an electroluminescent layer film by a tape casting machine, wherein the electroluminescent layer film is a non-flat surface, and the back conductive layer is an ion transparent conductive film to form double-sided diffuse-brightness gradually-brightening luminescence; the back of the electroluminescent layer is provided with a dielectric layer, so that diffuse and gradually bright light with different double-sided brightness is formed.
6. A diffusely lit electroluminescent device as defined in claim 1, wherein the transparent protective layer and the protective layer are one of TPU, PVA, fluoroplastic film, and silicone film, and the transparent protective layer or the protective layer has a non-planar surface on at least one side. The transparent protective layer and the protective layer are self-adhered on the surface of the ion transparent conductive film through vacuum hot pressing; the transparent protective layer and the protective layer are made of elastic plastic film materials, so that the electroluminescent sheet with elasticity is formed.
7. The diffuse gradually-brightening electroluminescent sheet of claim 1, wherein the back conductive layer is one of an ion transparent conductive film or a conductive paste, the back conductive layer uses the conductive paste, the transparent conductive layer is an ion transparent conductive film, and the two ion transparent conductive films are compounded to form diffuse gradually-brightening rapid luminescence; the transparent conductive layer is one of an ion transparent conductive film or an ITO conductive film, the transparent conductive layer is the ITO conductive film, the back conductive layer is the ion transparent conductive film, and the two ion transparent conductive films are compounded to form the diffuse gradually-bright rapid light emission.
8. The diffuse gradually-brightening electroluminescent strip as claimed in claim 1, wherein a special voltage regulation control driver is used, the driver is connected with the electrodes, and the chip is used for controlling the voltage cycle lifting time, speed and frequency, so that the period of the gradually-brightening area of the electroluminescent strip automatically generates dynamic gradually-brightening luminescence and gradually-recessing extinction; the gradually-bright area refers to that the luminous intensity forms a fixed distribution of brightness from weak to strong within a certain distance when static constant voltage is loaded, and the fixed distribution gradually spreads and moves along with the voltage change to form a visual dynamic gradually-spreading gradually-bright luminous effect.
9. The diffuse brightness gradually-increasing electroluminescent sheet as claimed in claim 1, wherein the transparent conductive layer and the back conductive layer are respectively provided with an electrode connecting sheet, the electrodes of the transparent conductive layer and the back conductive layer form an insulating co-located superposition structure, the extracted electrodes have single-sided conduction, and an insulating isolation layer is arranged between the two electrodes; the transparent conductive layer and the back conductive layer are ion transparent conductive films, and the electroluminescent sheet can automatically generate dynamic slow-speed gradually-spread gradually-bright luminescence.
10. The diffuse gradually brightening electroluminescent light-emitting diode of claim 1, which is prepared by: 1) Firstly, respectively preparing an electroluminescent layer film, an ion transparent conductive film for a transparent conductive layer film and an ion transparent conductive film for a back conductive layer film; 2) Electrodes are respectively stuck and arranged on the same positions of the transparent conducting layer film and the back conducting layer film; 3) Pressing the transparent conductive layer film, the electroluminescent layer film and the back conductive layer film into an integrated electroluminescent film with a sandwich structure through a vacuum pressure compounding machine; 4) The transparent protective layer, the electroluminescent film with the sandwich structure and the protective layer are laminated into an integral diffuse bright electroluminescent sheet which is connected with a special driver.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310100401.3A CN116017798A (en) | 2023-02-07 | 2023-02-07 | Diffuse-extending gradually-brightening electroluminescent sheet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310100401.3A CN116017798A (en) | 2023-02-07 | 2023-02-07 | Diffuse-extending gradually-brightening electroluminescent sheet |
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| CN202310100401.3A Pending CN116017798A (en) | 2023-02-07 | 2023-02-07 | Diffuse-extending gradually-brightening electroluminescent sheet |
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| Country | Link |
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| CN (1) | CN116017798A (en) |
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2023
- 2023-02-07 CN CN202310100401.3A patent/CN116017798A/en active Pending
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