TWI703752B - Electrically actuated light emitting device - Google Patents

Abstract

An electrically actuated light emitting device, comprising a battery, a printed circuit and a light emitting unit. Wherein the battery has a film package, the film package has a housing space and a disposing surface facing away from the housing space, and a battery core disposed in the housing space. The battery core further has an electrode set, wherein the electrode set protrudes from the housing space and extends to the disposing surface. The printed circuit is disposed on the disposing surface and electronically connects to the electrode set. The light emitting unit is disposed on the disposing surface and electronically connects to the printed circuit.

Description

Electroluminescent device

The present invention relates to an electroluminescence device, in particular to an electroluminescence device with light-emitting elements and circuit wiring on a battery.

The use of small light-emitting diodes such as Light-Emitting Diodes (LEDs) is becoming more and more common in the market, and because of their small size, light-emitting diodes are often used in small devices, such as Backlight panels of mobile phones, flashlights, LCD displays or other portable light sources, etc.

However, light-emitting diodes usually need to be driven by the built-in power supply of the electronic device or the light-emitting device to emit light. In addition to the light-emitting diodes and the built-in power supply inside these devices, it is necessary to configure a driving circuit to make the device The provided light-emitting diodes can operate as expected, so how to complete the light-emitting components and/or lighting equipment in the electronic device with a more streamlined structure is a major challenge under the current trend of miniaturization.

In view of the above, the present invention provides an electroluminescent device that meets the above needs.

An electroluminescent device according to an embodiment of the present invention includes: a battery having: a package body having an accommodating space and a setting surface facing away from the accommodating space; and a battery cell disposed in the container The battery cell further has an electrode group, wherein the electrode group extends from the accommodating space and extends to the setting surface; a printed circuit is provided on the setting surface and is electrically connected to the electrode group; And a light-emitting element is arranged on the installation surface and electrically connected to the printed circuit.

The above description of the content of the disclosure and the description of the following embodiments are used to demonstrate and explain the spirit and principle of the present invention, and to provide a further explanation of the patent application scope of the present invention.

1, 1’, 1”: electroluminescent device

10: battery

101: package body

101a: housing space

101b: Setting the surface

102: battery cell

102a: Electrode group

20, 20’, 20”: printed circuit

30: Light-emitting element

301: Glossy Surface

R: Light emitting area

L1: insulating layer

L2: reflective layer

FIG. 1 is an electroluminescence device according to an embodiment of the invention.

2A is a top view of an electroluminescent device according to another embodiment of the invention.

FIG. 2B is a structural diagram of the package shown in the embodiment of FIG. 2A.

2C is a top view of an electroluminescent device according to another embodiment of the invention.

The detailed features and advantages of the present invention are described in detail in the following embodiments, and the content is sufficient to enable anyone familiar with the relevant art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of patent application and the drawings Anyone who is familiar with the relevant art can easily understand the related purpose and advantages of the present invention. The following examples further illustrate the viewpoints of the present invention in detail, but do not limit the scope of the present invention by any viewpoint.

Please refer to FIG. 1, which is an electroluminescent device according to an embodiment of the present invention. The electroluminescent device 1 of this embodiment includes a battery 10, a printed circuit 20 and a light-emitting element 30. The battery 10 further includes a film package 101 and a battery core 102.

Please continue to refer to FIG. 1, an accommodating space 101a is formed in the package body 101, and the outer side of the package body 101 includes a setting surface 101b, and the setting surface 101b is a surface facing away from the accommodating space 101a. The thickness of the battery 10 can be no more than 20 mm, and the thickness is preferably one of 1 mm, 3 mm, 6 mm, 9 mm or 15 mm. The detailed implementation of the package 101 of this embodiment will be described in more detail with reference to the drawings in the following embodiments.

Please continue to refer to FIG. 1, the battery cell 102 is disposed in the accommodating space 101a, the battery cell 102 has an electrode group 102a, and the electrode group 102a extends from the accommodating space 101a And extend to the setting surface 101b. In other words, the electrode group 102a extends from the connection with the battery cell 102 and extends from the accommodating space 101a (package body 101), and the part of the electrode group 102a outside the accommodating space 101a extends to the setting surface 101b on. The battery core 102 is, for example, a Lithium-Ion Battery Core or a Paper Battery Core, but the invention is not limited thereto.

Please continue to refer to FIG. 1, the printed circuit 20 and the light emitting element 30 are disposed on the installation surface 101b, and the printed circuit 20 is electrically connected to the electrode group 102a to receive the driving power output by the electrode group 102a. Among them, the wiring of the printed circuit 20 is preferably a single-layer structure, and the wires of the printed circuit 20 are preferably directly bonded to the installation surface 101b. In other words, all the wires of the printed circuit 20 are preferably located on the same surface (setting surface 101b), and no two sections of wires form an overlapping structure. When realizing the design of a single-layer structure, the parts that need to cross the line can be set at the electronic component (such as passive components such as resistance or inductance) with an insulating shell, and use this electronic component to cross the wire to complete the cross-line structure, so that all The wires remain on the same surface. The printed circuit 20 may be provided with a switch to control the power supply status of the battery core 102.

Please continue to refer to FIG. 1, the light-emitting element 30 is disposed on the installation surface 101 b, and the light-emitting element 30 is electrically connected to the printed circuit 20 to be actuated and controlled by the printed circuit 20. It should be particularly noted that the light-emitting element 30 shown in FIG. 1 is only an exemplary illustration, that is, the light-emitting element 30 may be one or more light-emitting elements, and the light-emitting surface 301 of the light-emitting element 30 shown in FIG. The direction away from the setting surface 101b. In addition, the plurality of light-emitting elements 30 may be one or more blocks centrally or dispersedly arranged on the installation surface 101b. In addition, the installation position of the light-emitting elements 30 may be on the long side and/or short side of the battery cell 102 , Not limited to the setting position disclosed in Figure 1. The light-emitting element 30 is preferably a light-emitting diode (Light-Emitting Diode, LED), a micro light-emitting diode (Micro LED), an organic light-emitting diode (Organic Light-Emitting Diode, OLED), or other The light-emitting element is small in size and can be applied to a portable light source such as a flashlight, but the present invention is not limited thereto. Among them, if the light-emitting element 30 is a miniature light-emitting diode, the light-emitting surface 301 is preferably a laterally arranged surface. 面101b.

Please refer to FIGS. 2A to 2C together. FIG. 2A is a top view of an electroluminescent device according to another embodiment of the present invention; FIG. 2B is a structure diagram of a package according to the embodiment of FIG. 2A; 2C is a top view of an electroluminescent device according to another embodiment of the invention. The electroluminescent device 1'disclosed in FIG. 2A is similar to the electroluminescent device 1 disclosed in FIG. The only difference is that the installation surface 101b of the electroluminescent device 1'of FIG. 2A further has a light emitting area R. The shape of the light-emitting area R shown in one or more embodiments of the present invention is rectangular, but the form (for example, shape or size) of the light-emitting area R of the present invention is not limited to this.

In the embodiment of FIG. 2A, the light-emitting element 30 is arranged in the light-emitting area R, and the light-emitting surface 301 of the light-emitting element 30 corresponds to the light-emitting area R, so that the light emitted by the light-emitting element 30 is efficiently and uniformly derived from the light-emitting area R, and By disposing the light emitting element 30 in the light emitting area R, the light emitted by the light emitting element 30 can be used (reflected) more effectively. Wherein, the light-emitting area R may include a refraction, reflection or light-guiding structure, so that the light emitted by the light-emitting surface of the light-emitting element 30 can be uniformly emitted in a direction away from the package 101 through the entire arrangement range of the light-emitting area R. The light guide structure can be realized with a light guide plate. For example, when the light guide structure is implemented by a light guide plate, the light-emitting surface 301 of the light emitting element 30 preferably faces the light guide plate. The light emitted from the light-emitting surface 301 of the light-emitting element 30 will be incident on the side of the light guide plate of the light-emitting area R (the side perpendicular to the setting surface 101b), and the structure of the light guide plate destroys the total reflection of the light to reduce the light It is emitted from the light emitting area R.

Please continue to refer to FIGS. 2A and 2B. In more detail, the package body 101 may have an insulating layer L1 and a light reflecting layer L2. The insulating layer L1 is a transparent insulating layer, and the light reflecting layer L2 can reflect the light emitted by the light emitting element 30 , So that the reflected light is reflected on the installation surface 101b and emitted in a direction away from the installation surface 101b, and the reflective layer L2 is disposed between the insulating layer L1 and the battery core 102. In addition, the setting area of the light reflective layer L2 at least covers the setting area of the light emitting area R. The side of the insulating layer L1 (the side facing away from the light-reflecting layer L2) is the installation surface 101b, so even if the printed circuit 20' and the light-reflecting layer L2 are projected on the installation surface 101b When the shadows overlap, the printed circuit 20' on the installation surface 101b and the reflective layer L2 can still be electrically isolated from each other by the insulating layer L1.

Please continue to refer to FIG. 2B, where the insulating layer L1 is preferably a heat-resistant resin film, such as nylon (Polyamide, PA), polyimide (PI), polyethylene terephthalate (Polyethylene terephthalate) One or more of Terephthalate (PET) or Polyetheretherketone (PEEK) etc. are realized. In addition, the insulating layer L1 may include a stiffener to avoid damage to the package body 101 when the printed circuit 20'/20 is installed on the installation surface 101b. In addition, the insulating layer L1 can be added with a thermally conductive material with high thermal conductivity, and/or a thermally conductive structure can be added to the insulating layer L1 to increase heat radiation, so as to avoid battery cells when the printed circuit 20/20' is disposed on the mounting surface 101b. 102 is damaged due to high temperature, but the present invention is not limited to this.

And the reflective layer L2, in the visible light range, its reflective function is preferably realized by aluminum and/or its alloy; for the light emission wavelength band, the reflective layer L2 has high reflectivity substances, which can be nickel, gold, platinum , Silver or alloys containing any of the above metals or realized by surface structure, but the present invention is not limited to this.

Please continue to refer to FIGS. 2A and 2B, and also refer to FIG. 1. The package 101 shown in FIG. 1 includes at least an insulating layer L1; and the package 101 shown in FIG. 2A includes at least an insulating layer L1, preferably more including reflective Layer L2.

Please refer to FIG. 2C, the electroluminescent device 1" disclosed therein is similar to the electroluminescent device 1'disclosed in FIG. 2A, and the package 101 of FIG. 2C can also be implemented by the method of FIG. 2B. The only difference is that The light-emitting element 30 of FIG. 2C is arranged outside the light-emitting area R, and the printed circuit 20' and the light-emitting area R are spaced apart from each other. Therefore, the light-emitting device 1" disclosed in FIG. 2C emits light from the light-emitting area R The light can be more uniform.

Based on the above content, the electroluminescent device proposed by one or more embodiments of the present invention can arrange the printed circuit and the light-emitting element on the same surface, so as not to increase or decrease the electronic device and/or lighting equipment. Under the premise, it can still install the batteries and printed circuit Road and light-emitting elements, etc. In addition, according to one or more embodiments of the present invention, the position of the light-emitting element can be adjusted to further reduce the overall volume of the electroluminescent device or to make the reflected light more uniform.

Although the present invention is disclosed in the foregoing embodiments, it is not intended to limit the present invention. All changes and modifications made without departing from the spirit and scope of the present invention fall within the scope of patent protection of the present invention. For the scope of protection defined by the present invention, please refer to the attached patent scope.

1: Electroluminescent device

10: battery

20: printed circuit

30: Light-emitting element

101: package body

101a: housing space

101b: Setting the surface

102: battery cell

102a: Electrode group

301: Glossy Surface

Claims (7)

An electroluminescent device, comprising: a battery, comprising: a packaging body having an accommodating space and a setting surface facing away from the accommodating space; and a battery cell arranged in the accommodating space, the battery cell being more Having an electrode group, wherein the electrode group protrudes from the accommodating space and extends to the installation surface; a printed circuit arranged on the installation surface of the package of the battery and electrically connected to the electrode group; And a light-emitting element is arranged on the installation surface and electrically connected to the printed circuit. The electroluminescent device according to claim 1, wherein the installation surface has a light-emitting area, and a light-emitting surface of the light-emitting element faces the light-emitting area. The electroluminescent device according to claim 2, wherein the printed circuit and the light emitting area are spaced apart from each other. The electroluminescence device according to claim 3, wherein the light-emitting area includes a setting area of the light-emitting element. The electroluminescent device according to claim 3, wherein the light emitting element is arranged outside the light emitting area. The electroluminescent device according to claim 1, wherein the package body includes an insulating layer and a light reflecting layer, wherein the light reflecting layer is located between the insulating layer and the battery core. The electroluminescence device according to claim 1, wherein the wiring of the printed circuit has a single-layer structure.

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