CN106545827B

CN106545827B - Lighting device

Info

Publication number: CN106545827B
Application number: CN201610975841.3A
Authority: CN
Inventors: 冯建斌; 胡永岚; 谢静; 朱映光
Original assignee: Guan Yeolight Technology Co Ltd
Current assignee: Guan Yeolight Technology Co Ltd
Priority date: 2016-10-28
Filing date: 2016-10-28
Publication date: 2020-02-14
Anticipated expiration: 2036-10-28
Also published as: CN106545827A

Abstract

The invention relates to the field of illumination, and the circuit board comprises a bonding electrode and at least 2 input electrodes. When being applied to lighting device, the drive of concatenating of a plurality of lighting unit can be realized through the overlap joint in order of circuit board, need not to customize the model according to the demand of illumination product, and the commonality is high. Moreover, only one bonding is needed on each circuit board, and the universality of bonding equipment is high. The lighting device comprises a plurality of OLED lighting panels, a first circuit board and a second circuit board, wherein the first circuit board and the second circuit board drive the OLED lighting panels; the sum of the number of the first circuit boards and the number of the second circuit boards is equal to the number of the OLED lighting panels. The serial connection driving of a plurality of lighting units can be realized through the sequential overlapping of the circuit boards, the structure is simple, and the production cost is low.

Description

Lighting device

Technical Field

The invention relates to the field of illumination, in particular to an illumination device.

Background

Organic Light Emitting devices (abbreviated as OLEDs) are used as the next generation of lighting technology, and have the advantages of surface Light emission, low heat dissipation, low energy consumption, Light weight, thinness, and the like. More importantly, the electricity consumption for illumination in China is about 6000 million degrees each year, which accounts for 12 percent of the annual electricity in China, and 5.98 million tons of carbon dioxide are emitted for illumination each year. If OLED illumination is used for replacing the existing illumination, 4000 million degrees of electricity can be saved every year, 3.99 million tons of carbon dioxide emission can be reduced, and the OLED illumination has important application value.

The OLED lighting has the obvious advantages that the surface light source with any shape can be realized, and the space three-dimensional configuration can be realized due to the flexibility, so that the application range is very wide. As such, it is often the case that one power supply drives multiple lighting panels simultaneously. Therefore, in the prior art, generally, according to product requirements, a bonding (bonding) plurality of secondary strip FPCs are designed on a primary strip Flexible Circuit board (hereinafter, referred to as a Flexible Printed Circuit, FPC for short), and the secondary strip FPCs respectively drive each lighting screen.

Although the method can drive a plurality of lighting screen bodies by the same power supply, the FPC model needs to be customized according to different product requirements, and the universality is poor. Simultaneously, current bonding equipment is mostly single-end and is pressing equipment, and it is loaded down with trivial details to handle the many times bonding process on same FPC to, the lighting screen body that has bonded has the restriction effect to its bonding process of the adjacent screen body that establishes ties, can't realize the zonulae occludens of the adjacent screen body. .

Disclosure of Invention

Therefore, the invention aims to solve the problems of poor universality and simplification of the arrangement mode of the screen bodies of the lighting device when the conventional circuit board structure realizes integration of a plurality of lighting screen bodies.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the invention provides a circuit board, which comprises a bonding electrode and at least 2 input electrodes.

Optionally, the input electrodes are not all arranged on the same side of the plane direction of the circuit board.

Optionally, the number of the input electrodes is 2, and the input electrodes are respectively arranged at the end parts of the circuit board in the length direction.

Optionally, the bonding electrode is disposed on a long side surface of the circuit board.

Optionally, the circuit board is a flexible circuit board.

Optionally, the areas of the positive electrode and the negative electrode in the input electrode are not less than 3mm²And the distance is not less than 1 mm.

Optionally, the areas of the positive and negative electrodes in the bonding electrode are not less than 3mm²And the distance is not less than 1 mm.

The invention provides a lighting device, which comprises a plurality of OLED lighting panels, a first circuit board and a second circuit board, wherein the first circuit board and the second circuit board drive the OLED lighting panels; the sum of the number of the first circuit boards and the number of the second circuit boards is equal to the number of the OLED lighting panels.

The second circuit board comprises bonding electrodes and input electrodes, and the number of the input electrodes is smaller than that of the input electrodes on the first circuit board.

The first circuit board is electrically connected in sequence through the input electrodes to form a circuit board string, the second circuit board is electrically connected to the tail end of the circuit board string, and each OLED lighting panel is electrically connected to each circuit board through the bonding electrodes.

Compared with the prior art, the technical scheme of the invention has the following advantages:

the circuit board comprises a bonding electrode and at least 2 input electrodes. When being applied to lighting device, the drive of concatenating of a plurality of lighting unit can be realized through the overlap joint in order of circuit board, need not to customize the model according to the demand of illumination product, and the commonality is high. Moreover, only one bonding is needed on each circuit board, and the universality of bonding equipment is high.

The lighting device comprises a plurality of OLED lighting panels, a first circuit board and a second circuit board, wherein the first circuit board and the second circuit board drive the OLED lighting panels; the sum of the number of the first circuit boards and the number of the second circuit boards is equal to the number of the OLED lighting panels. The serial connection driving of a plurality of lighting units can be realized through the sequential overlapping of the circuit boards, the structure is simple, and the production cost is low.

Meanwhile, the shape of the circuit board and the position and the number of the input electrodes are adjusted to realize the diversification of the modeling of the OLED lighting device.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which

Fig. 1 is a schematic diagram of a circuit board internal trace and external electrode structure according to embodiment 1 of the present invention;

FIG. 2 is a schematic diagram of internal traces and an external structure of a circuit board bonded to a lighting panel according to another embodiment of the present invention;

fig. 3 is a schematic diagram of internal routing and external structure of a second circuit board in embodiment 2 of the present invention;

fig. 4 is a schematic diagram of internal routing and external structure of a circuit board string according to embodiment 2 of the present invention.

The reference numbers in the figures denote: 1-a first input electrode, 2-a second input electrode, 3-a first bonding electrode, 4-a third input electrode, 5-a second bonding electrode, 6-a circuit board string, 7-a fourth input electrode, and 8-a lighting panel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art, and the present invention will only be defined by the appended claims. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. It will be understood that when an element such as a layer, region or substrate is referred to as being "formed on" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly formed on" or "directly disposed on" another element, there are no intervening elements present.

Example 1

The present embodiment provides a circuit board, as shown in fig. 1, including a first input electrode 1 and a second input electrode 2, where the first input electrode 1 and the second input electrode 2 are respectively located at two sides of a plane direction of the circuit board, where the first input electrode 1 is located at one side of a front surface of the plane of the circuit board, and the second input electrode is located at one side of a back surface of the plane of the circuit board; a bonding electrode 3 is also included.

As an alternative embodiment of the present invention, the circuit board comprises a bonding electrode and at least 2 input electrodes, which can achieve the object of the present invention and belong to the protection scope of the present invention.

As an embodiment of the present invention, in this embodiment, the circuit board is a flexible circuit board, and is a rectangular board with a size of 4cm × 1.2cm, the size of the positive and negative electrodes in the bonding electrode 3 is 7mm × 4mm, the distance is 1mm, the size of the positive and negative electrodes in the first input electrode 1 and the second input electrode 2 is 5mm × 1mm, and the distance is 4 mm.

As an alternative embodiment of the present invention, as shown in fig. 2, the circuit board may also be S-shaped, and include a first input electrode 1 and a second input electrode 2 disposed at the end portions of the circuit board, and further include a third input electrode 4 disposed at the middle portion of the circuit board in the length direction; and 3 first bonding electrodes 3 for bonding connection with the illumination panel 8.

As a changeable embodiment of the invention, the circuit board can be in any shape, and can also be a rigid board, and the input electrodes of the circuit board are respectively arranged at the end parts of the circuit board in the length direction and are not all arranged at the same side of the circuit board in the plane direction; the bonding electrodes are arranged on the surfaces of the long edges of the circuit board, the size and the distance of the electrodes meet the bonding requirements, the purpose of the invention can be achieved, and the invention belongs to the protection scope of the invention.

Example 2

The embodiment provides a lighting device, which comprises a plurality of OLED lighting panels, a first circuit board and a second circuit board, wherein the first circuit board and the second circuit board drive the OLED lighting panels, and the first circuit board is the circuit board provided in the embodiment 1; the sum of the number of the first circuit boards and the number of the second circuit boards is not less than the number of the OLED lighting panels.

As shown in fig. 3, the second wiring board includes a third input electrode 7 and a second bonding electrode 5. As shown in fig. 4, the first input electrode 1 and the second input electrode 2 are respectively located at two sides of the plane direction of the circuit board, the first circuit board can be electrically connected in sequence through the

input electrodes

1 and 2 in an up-and-down overlapping manner to form a circuit board string 6, the second circuit board is electrically connected to the tail end of the circuit board string 6, and each OLED lighting panel is electrically connected to each circuit board through each

bonding electrode

3 and 5. For convenience of explaining the lighting device provided by the present invention, the circuit board string 6 in fig. 4 only shows 2 electrically connected first circuit boards, and as another embodiment of the present invention, the number of the first circuit boards connected in series is not limited.

As a changeable embodiment of the invention, the number of the input electrodes of the second circuit board is smaller than that of the input electrodes on the first circuit board, so as to ensure that the final electrode has no naked phenomenon. The circuit boards can be electrically connected in modes of anisotropic conductive adhesive bonding, welding, buckling and the like, and the purpose of the invention can be achieved, and the circuit boards belong to the protection scope of the invention.

Above-mentioned first circuit board when being applied to lighting device, can realize the drive of concatenating of a plurality of lighting unit through the overlap joint in order of circuit board, need not to customize the model according to the demand of illumination product, and the commonality is high. Moreover, only one bonding is needed on each circuit board, and the universality of bonding equipment is high. The structure of the lighting equipment can be effectively simplified, the production cost can be reduced, the structural diversification of the lighting device is realized, and the lighting equipment has wide market value.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.

Claims

1. A lighting device is characterized by comprising a plurality of OLED lighting panels, a first circuit board and a second circuit board, wherein the first circuit board and the second circuit board drive the OLED lighting panels, the first circuit board comprises bonding electrodes and at least 2 input electrodes, and the at least two input electrodes are electrically connected with the bonding electrodes; the sum of the number of the first circuit boards and the number of the second circuit boards is equal to the number of the OLED lighting panels; the second circuit board comprises bonding electrodes and input electrodes, and the number of the input electrodes is smaller than that of the input electrodes on the first circuit board; the first circuit board is electrically connected in sequence through the input electrodes to form a circuit board string, the second circuit board is electrically connected to the tail end of the circuit board string, and each OLED lighting panel is electrically connected to each circuit board through the bonding electrodes.

2. The lighting device according to claim 1, wherein the input electrodes are not all provided on the same side in the planar direction of the first wiring board.

3. A lighting device as recited in claim 1, wherein: the number of the input electrodes is 2, and the input electrodes are respectively arranged at the end parts of the first circuit board in the length direction.

4. The lighting device according to claim 1, wherein the bonding electrode is provided on a long side surface of the first wiring board.

5. The lighting device of claim 1, wherein the first circuit board is a flexible circuit board.

6. The lighting device according to claim 1, wherein the areas of the positive electrode and the negative electrode in the input electrode are not less than 3mm2, and the distance is not less than 1 mm.

7. The lighting device as defined in claim 1, wherein the areas of the positive and negative electrodes in the bonding electrodes are not less than 3mm2 and the spacing is not less than 1 mm.