TWI666968B - Electroluminescent structure and manufacturing method thereof - Google Patents

Abstract

The invention provides an electro-excitation light structure and a manufacturing method thereof. The manufacturing method includes the following steps: preparing a liquid light-emitting material, the light-emitting material is a mixture of a light-emitting powder and a resin, wherein the light-emitting powder accounts for the weight percentage of the light-emitting material. 30% ~ 50%, the weight percentage of the resin in the light-emitting material is 50% -70%, and the solid content of the resin is 60% -80%, and the dielectric constant is greater than 4; attach the light-emitting material to an object and wait for light emission The material is dried and formed into a light-emitting layer; a transparent conductive layer is attached to the light-emitting layer; and the object and the transparent conductive layer are respectively connected to a conductive lead, and the two conductive leads are respectively connected to the positive and negative electrodes of a power driver, thereby The light is applied to excite the light-emitting layer.

Description

Electrically excited light structure and manufacturing method thereof

The invention relates to a light emitting structure, in particular to an electro-excitation light structure and a manufacturing method thereof.

Press, Electroluminescent, which is a phenomenon that uses electroluminescence. The basic principle is to sandwich a suitable light-emitting material between two conductive layers. When a current flows, the light-emitting material emits visible light. The light-emitting elements made in this light-emitting mode have the advantages of light weight and thin thickness. Therefore, they have been widely used in various lamps, displays, or decorations.

As shown in the US Patent No. 10043397 and the Republic of China Patent No. 100150087, an electrical excitation light element made using the above-mentioned principle of electrical excitation light has been disclosed. However, the electrical excitation light element of the two patents is applied to The substrates are all hard materials, so the fields of use are limited. For example, objects of soft materials such as hats and clothes, or objects with uneven surfaces, cannot be implemented. In addition, there is a dielectric between the light-emitting material and the conductive layer. Layer in order to provide insulation function to avoid the phenomenon of short circuit of the electrodes, but this method of setting the dielectric layer also causes a complicated process. In addition, it is known that the electrical excitation light element does not have the characteristics of double-sided light emission. Therefore, the various points that must be improved need to be resolved by the relevant industries.

To solve the above problems, the present invention provides an electro-excitation light structure and a manufacturing method thereof. The light-emitting material is a mixture of light-emitting powder and resin, thereby forming a liquid light-emitting material that can be attached to various materials and various shapes of soft and hard. On the object, the added resin can be used as an adhesive for the light-emitting material, thereby having the function of insulation.

In order to achieve the above object, the manufacturing method of the electro-excited light structure of the present invention includes the following steps: preparing a liquid light-emitting material, the light-emitting material is a mixture of a light-emitting powder and a resin, wherein the light-emitting powder accounts for the weight percentage of the light-emitting material 30% ~ 50%, the weight percentage of the resin in the light-emitting material is 50% -70%, and the solid content of the resin is 60% -80%, and the dielectric constant is greater than 4; the light-emitting material is attached to an object made of a conductive material On the uneven surface, a light-emitting layer is formed after the light-emitting material is formed into a film; a transparent conductive layer is attached to the light-emitting layer; and an object and the transparent conductive layer are respectively connected to a conductive lead, and the two conductive leads are respectively connected to one The positive and negative electrodes of the power driver are used to apply a current to excite the light emitting layer to generate bright light.

The electro-excitation light structure of the present invention comprises: a light-emitting layer attached to the uneven surface of an object made of a conductive material, and formed by forming and drying a liquid light-emitting material into a film, and the light-emitting material is composed of a light-emitting powder and a resin. Mixed, in which the weight percentage of the light-emitting powder is 30% to 50%, the weight percentage of the resin is 50% to 70%, and the solid content of the resin is 60% to 80%. The coefficient is greater than 4; a transparent conductive layer attached to the light-emitting layer opposite to one side of the object; a transparent protective layer attached to the transparent conductive layer opposite to one side of the light-emitting layer; and two conductive leads respectively connecting the object and The transparent conductive layer, and the two conductive leads can be respectively connected to the positive and negative electrodes of a power driver.

In addition, the present invention further provides another electro-excitation light structure and a manufacturing method thereof, wherein the manufacturing method includes the following steps: preparing a liquid light-emitting material, the light-emitting material is a mixture of a light-emitting powder and a resin, wherein the light-emitting powder accounts for the The weight percentage of the light-emitting material is 30% to 50%, the weight percentage of the resin in the light-emitting material is 50% to 70%, and the solid content of the resin is 60% to 80%, and the dielectric coefficient is greater than 4; a conductive layer is attached to A non-conducting material on the uneven surface of the object; attaching a light-emitting material to the conductive layer, and forming a light-emitting layer after the light-emitting material is formed into a film; a transparent conductive layer is attached to the light-emitting layer; and a conductive layer and a transparent conductive layer A conductive lead is connected respectively, and the two conductive leads are respectively connected to the positive and negative electrodes of a power driver, thereby applying a current to excite the light emitting layer to generate bright light.

The electro-excitation light structure includes: a conductive layer attached to the uneven surface of an object made of a non-conductive material; and a light-emitting layer attached to the conductive layer opposite to one side of the object and made of a liquid The luminescent material is formed after film formation and drying. The luminescent material is a mixture of luminescent powder and resin. Among them, the luminescent powder accounts for 30% to 50% of the weight of the luminescent material and the resin accounts for 50% to 70% of the weight of the luminescent material. %, And the solid content of the resin is 60% ~ 80%, the dielectric constant is greater than 4; a transparent conductive layer, which is attached to the light-emitting layer opposite to one side of the conductive layer; a transparent protective layer, which is attached to the transparent conductive layer opposite On one side of the light-emitting layer; and two conductive leads, which are respectively connected to the conductive layer and the transparent conductive layer, and the two conductive leads can be respectively connected to the positive and negative electrodes of a power driver.

In this way, the light-emitting material of the electro-excitation light structure of the present invention is made by adding luminescent powder and resin to form a liquid luminescent material, which can be attached to various materials and various shapes of soft and hard objects. In addition, the added resin It can be used as an adhesive for light-emitting materials, and because the resin has a high solid content and a high dielectric constant, the light-emitting layer itself has an insulating function, which can avoid the phenomenon of electrode short-circuit and voltage breakdown. Therefore, the invention can save practice It is extremely economical to know the construction and material costs of the dielectric layer to save development resources.

In addition, the object used in the present invention may be a conductive material or a non-conductive material. If the object is a conductive material, it is only necessary to sequentially attach a light-emitting layer and a transparent conductive layer to the uneven surface of the object, and if the object is a non-conductive material, then The uneven surface of the object must be sequentially attached with a conductive layer, a light-emitting layer, and a transparent conductive layer, so that it can be used in a wide range, and if the non-conductive material is transparent or translucent, it can also form a special effect of double-sided light emission. It can be used in wearable devices, mobile tools or advertising to achieve safety warning and attract attention.

100, 200‧‧‧ electro-excitation light structure

300, 500‧‧‧ objects

400‧‧‧ Power Driver

600‧‧‧ Headset

10‧‧‧ luminescent layer

20‧‧‧ transparent conductive layer

30‧‧‧ transparent protective layer

40‧‧‧first conductive lead

41‧‧‧Second conductive lead

50‧‧‧ conductive layer

FIG. 1 is a flowchart of a manufacturing method of a first embodiment of an electro-excitation light structure according to the present invention.

FIG. 2 is a flowchart of a manufacturing method of a second embodiment of the electro-excitation light structure of the present invention.

FIG. 3 is a schematic cross-sectional view of the first embodiment of the electro-excitation light structure of the present invention.

FIG. 4 is a schematic cross-sectional view of a second embodiment of the electro-excitation light structure of the present invention.

FIG. 5 is a schematic diagram of applying the electro-excitation light structure of the present invention to a head-mounted device.

In order to facilitate the description of the central idea of the present invention in the above-mentioned summary of content, specific embodiments are described below. Various objects in the embodiments are drawn according to the proportions suitable for enumeration, rather than the proportions of the actual components, which will be described beforehand.

Please refer to FIG. 1, the present invention provides a method for manufacturing an electro-excitation light structure 100, which includes the following steps:

(1) Preparation of a liquid light-emitting material. The light-emitting material is a mixture of light-emitting powder and resin. Among them, the light-emitting powder accounts for 30% to 50% by weight of the light-emitting material, and is made of zinc sulfide, calcium sulfide or strontium sulfide. One of them is made by adding at least one of manganese, copper, magnesium, osmium, osmium, or fluorescent dyes, and the resin accounts for 50% to 70% by weight of the light-emitting material, which is used as a light-emitting material. Adhesive for materials, and the solid content of the resin is 60% ~ 80%, and the dielectric constant is greater than 4. In addition, the resin is alkyd, acrylic, epoxy, phenolic, amino, nitro, chlorinated rubber Type, polyurethane type, fluorocarbon type, polysiloxane type, vinyl resin type, polyester type, polycarbonate type or modified resin with functional group added, etc., by which the resin can be water-based or oily Resin, and its film-forming drying method can be thermosetting or UV light curing.

(2) The light-emitting material is attached to the uneven surface of an object 300 made of a conductive material, such as a metal product. After the light-emitting material is formed into a film and dried, a light-emitting layer 10 is formed. Add a small amount of oily or water-based color concentrate or color paste to the material.

(3) A transparent conductive layer 20 is attached to the light emitting layer 10, and the transparent conductive layer 20 is made of ITO conductive paste, ATO conductive liquid, graphene or nano-silver wire, and the square resistance value of the transparent conductive layer 20 is Below 100 ohms, the light transmittance is above 75%.

(4) A transparent protective layer 30 is attached to the transparent conductive layer 20, and the transparent protective layer 30 is made of a glossy or matte resin or paint as a protective layer for protecting the electro-excitation light structure 100. When changing or coloring, a small amount of oily or water-based color concentrate or color paste can be added to the resin, and other ingredients or additives can be added to produce different effects, such as pearl powder, glitter, or matting agent.

(5) Connect the object 300 and the transparent conductive layer 20 to a first conductive lead 40 and a second conductive lead 41, respectively. The two conductive leads 40 and 41 are one of conductive paste, conductive tape, or FPC, and The two conductive leads 40 and 41 are respectively connected to a power source by means of welding, gluing or latching. The positive and negative electrodes of the driver 400 are used to excite the light-emitting layer 10 to generate bright light by applying a current. The power driver 400 can provide DC or AC power, which is converted into power with an AC voltage of 20 ~ 200V and a frequency of 60 ~ 3000hz.

In addition, the present invention further provides an electrically excited light structure 100, as shown in FIG. 3, which is made by the above-mentioned manufacturing method, and the electrically excited light structure 100 includes a light emitting layer 10, a transparent conductive layer 20, and a transparent The protective layer 30, a first conductive lead 40, and a second conductive lead 41, wherein the light emitting layer 10 is attached to the uneven surface of an object 300 made of a conductive material, and the transparent conductive layer 20 is attached to the light emitting layer 10 instead of the object On one side of 300, the transparent protective layer 30 is attached to one side of the transparent conductive layer 20 opposite to the light emitting layer 10, and the first conductive lead 40 and the second conductive lead 41 are connected to the object 300 and the transparent conductive layer 20, respectively, and the The two conductive leads 40 and 41 can be respectively connected to the positive and negative electrodes of a power driver 400.

In addition, please refer to FIG. 2, which is a second embodiment of the present invention, and provides another manufacturing method of the electro-excitation light structure 200, which includes the following steps:

(1) A liquid-state luminescent material is prepared.

(2) A conductive layer 50 is attached to the uneven surface of an object 500 made of a non-conductive material, such as a plastic product, a glass product, or a wooden product, and the conductive layer 50 is made of a conductive paste of a carbon series material or a metal series material. to make.

(3) The luminescent material is attached to the conductive layer 50, and a luminescent layer 10 is formed after the luminescent material is formed into a film and dried.

(4) A transparent conductive layer 20 is attached to the light emitting layer 10.

(5) A transparent protective layer 30 is attached to the transparent conductive layer 20.

(6) Connect the conductive layer 50 and the transparent conductive layer 20 to a first conductive lead 40 and a second conductive lead 41, respectively, and connect the two conductive leads 40 and 41 to the positive and negative electrodes of a power driver 400, respectively, thereby Applying a current excites the light emitting layer 10 to generate bright light.

In this embodiment, the composition of the light-emitting material, the transparent conductive layer 20, the transparent protective layer 30, and the two conductive leads 40 and 41 are the same as those of the first embodiment, so no further description is needed here.

In addition, the present invention further provides an electrically excited light structure 200, as shown in FIG. 4, which is made by the manufacturing method of the second embodiment, and the electrically excited light structure 200 includes a conductive layer 50 and a light emitting layer 10. , A transparent conductive layer 20, a transparent protective layer 30, a first conductive lead 40 and a second conductive lead 41, wherein the conductive layer 50 is attached to the uneven surface of an object 500 made of a non-conductive material, and the light-emitting layer 10 It is attached to one side of the conductive layer 50 opposite to the object 500, transparent conductive layer 20 is attached to the light emitting layer 10 opposite to one side of the conductive layer 50, and a transparent protective layer 30 is attached to the transparent conductive layer 20 opposite to the light emitting layer 10. On one side, the first conductive lead 40 and the second conductive lead 41 are respectively connected to the conductive layer 50 and the transparent conductive layer 20, and the two conductive leads 40 and 41 can be respectively connected to the positive and negative electrodes of a power driver 400.

In this way, the luminescent materials of the electro-excitation light structures 100 and 200 of the present invention are made by mixing luminescent powder with resin, thereby forming a liquid luminescent material that can be attached to various materials and various shapes of soft and hard objects 300 and 500. For example, hats, clothes, or uneven objects on the surface, such as the object 300 implemented in FIG. 3, the surface of which appears as uneven waves, the object 500 implemented in FIG. 4, the surface of which is uneven shape.

In addition, the added resin can be used as an adhesive for light-emitting materials, and because the resin has a high solid content and a high dielectric constant, the light-emitting layer 10 itself has an insulation function, which can avoid short electrodes. Circuit and voltage breakdown phenomenon, therefore, the invention can save the construction and material cost of the conventional dielectric layer, so as to save development resources, which is extremely economical.

In addition, the objects 300 and 500 used in the present invention may be a conductive material or a non-conductive material. In the case of a conductive material object 300, it is only necessary to sequentially attach the uneven surface of the object 300 to the light emitting layer 10, the transparent conductive layer 20, and the transparent protection. Layer 30, as shown in FIG. 3, and if the object 500 is a non-conductive material, the uneven surface of the object 500 must be sequentially attached with the conductive layer 50, the light emitting layer 10, the transparent conductive layer 20, and the transparent protective layer 30, such as As shown in FIG. 4, the electrical excitation light structures 100 and 200 of the present invention can be used in a wide range, and if the non-conductive material 500 and the conductive layer 50 are both transparent or translucent, the object 500 can also have The special effect of double-sided light emission is used in wearable devices, mobile tools or advertising, etc., to achieve safety warning and attract attention.

Furthermore, as shown in FIG. 5, it is a schematic diagram of the electrical excitation light structure 200 applied to a head-mounted device 600 according to the second embodiment of the present invention. Preferably, the head-mounted device 600 is a bicycle helmet, which makes the present invention The implemented object 500 is the concave-convex surface of a bicycle helmet, and the present invention can customize the external dimensions of the power driver 400 according to the hat-type structure of the head-mounted device 600 to install the power driver 400 on the head-mounted device 600, thereby The user can actively control the power driver 400 to make the electric excitation light structure 200 emit light or not.

The above-mentioned embodiments are only used to illustrate the present invention, and are not intended to limit the scope of the present invention. Various modifications or changes which do not violate the spirit of the present invention belong to the scope of the present invention.

Claims (10)

A method for manufacturing an electrically excited light structure includes the following steps: (a) preparing a liquid luminescent material, the luminescent material is a mixture of luminescent powder and resin, wherein the weight percentage of the luminescent powder to the luminescent material is 30% ~ 50%, the resin accounts for 50% ~ 70% of the weight of the luminescent material, and the resin has a solid content of 60% ~ 80% and a dielectric constant greater than 4; (b) the luminescent material is attached to A light-emitting layer is formed on the uneven surface of an object made of a conductive material after the light-emitting material is formed into a film; (c) a transparent conductive layer is attached to the light-emitting layer; and (d) the object and the transparent conductive layer A conductive lead is respectively connected, and the two conductive leads are respectively connected to the positive and negative electrodes of a power driver, thereby applying a current to excite the light emitting layer to generate bright light. The manufacturing method of the electrically excited light structure according to claim 1, further comprising a step of attaching a transparent protective layer to the transparent conductive layer, which is located between the step (c) and the step (d), and the transparent protection The layer is made of resin or paint. The manufacturing method of the electro-excitation light structure according to claim 1 or 2, wherein the resin is alkyd, acrylic, epoxy, phenolic, amino, nitro, chlorinated rubber, polyurethane, One of fluorocarbons, polysiloxanes, vinyl resins, polyesters, polycarbonates, or modified resins with functional groups added. The luminescent powder is made of zinc sulfide, calcium sulfide, strontium sulfide, etc. One of them is made by adding at least one of manganese, copper, magnesium, osmium, osmium, or a fluorescent dye. The transparent conductive layer is made of ITO conductive paste, ATO conductive liquid, graphene, or nano silver. The transparent conductive layer has a square resistance value of less than 100 ohms and a light transmittance of more than 75%. An electro-excitation light structure includes: a light-emitting layer attached to the uneven surface of an object made of a conductive material, and formed by forming a film of a liquid light-emitting material and drying the light-emitting material. The light-emitting material is made of light-emitting powder and resin. It is a mixture, wherein the weight percentage of the luminescent powder is 30% to 50%, the weight percentage of the resin is 50% to 70%, and the solid content of the resin is 60% to 80 %, The dielectric constant is greater than 4; a transparent conductive layer attached to the light emitting layer opposite to one side of the object; a transparent protective layer attached to the transparent conductive layer opposite to one side of the light emitting layer; and two The conductive leads are respectively connected to the object and the transparent conductive layer, and the two conductive leads can be respectively connected to the positive and negative electrodes of a power driver, thereby applying a current to excite the light-emitting layer to generate bright light. A method for manufacturing an electrically excited light structure includes the following steps: (a) preparing a liquid luminescent material, the luminescent material is a mixture of luminescent powder and resin, wherein the weight percentage of the luminescent powder to the luminescent material is 30% ~ 50%, the resin accounts for 50% ~ 70% of the weight of the luminescent material, and the resin has a solid content of 60% ~ 80% and a dielectric constant greater than 4; (b) attaching a conductive layer to A non-conducting material on the uneven surface of the object; (c) attaching the luminescent material to the conductive layer, and forming a luminescent layer after the luminescent material is formed into a film; and (d) attaching a transparent conductive layer to the luminescent material And (e) each of the conductive layer and the transparent conductive layer is connected with a conductive lead, and the two conductive leads are respectively connected to the positive and negative electrodes of a power driver, thereby applying a current to excite the light-emitting layer to generate bright light. The manufacturing method of the electro-excitation light structure according to claim 5, further comprising a step of attaching a transparent protective layer to the transparent conductive layer, which is located between steps (d) and (e). The transparent protective layer Made of resin or paint. The manufacturing method of the electro-excitation light structure according to claim 5 or 6, wherein the resin is alkyd, acrylic, epoxy, phenolic, amino, nitro, chlorinated rubber, polyurethane, One of fluorocarbons, polysiloxanes, vinyl resins, polyesters, polycarbonates, or modified resins with functional groups added. The luminescent powder is made of zinc sulfide, calcium sulfide, strontium sulfide, etc. One of them is made by adding at least one of manganese, copper, magnesium, osmium, osmium, or a fluorescent dye. The transparent conductive layer is made of ITO conductive paste, ATO conductive liquid, graphene, or nano silver. The transparent conductive layer has a square resistance value of less than 100 ohms and a light transmittance of more than 75%. The conductive layer is made of a conductive paste of carbon series or metal series. The manufacturing method of the electro-excitation light structure according to claim 5 or 6, wherein the object is transparent or translucent. An electrically excited light structure includes: a conductive layer attached to the uneven surface of an object made of a non-conductive material; and a light emitting layer attached to the conductive layer opposite to one side of the object, and is formed by a The liquid luminescent material is formed after film formation and drying. The luminescent material is a mixture of luminescent powder and resin, wherein the weight percentage of the luminescent powder is 30% to 50%, and the resin accounts for the weight of the luminescent material. The percentage is 50% to 70%, and the solid content of the resin is 60% to 80%, and the dielectric coefficient is greater than 4; a transparent conductive layer, which is attached to the light emitting layer opposite to one side of the conductive layer; a transparent protection Layer, which is attached to one side of the transparent conductive layer opposite to the light-emitting layer; and two conductive leads, which are respectively connected to the conductive layer and the transparent conductive layer, and the two conductive leads can be respectively connected to the plus and minus of a power driver An electrode is used to excite the light-emitting layer to generate bright light by applying a current. The electrical excitation light structure according to claim 9, wherein the object is transparent or translucent.