JP2020068155A - OLED lighting device - Google Patents

Abstract

To provide an OLED lighting device that can be more resistant to cable pulling.SOLUTION: An OLED lighting device S according to the present invention includes an OLED panel 1, and a board member 2 including a main body portion 21 on which all or part of the OLED panel 1 is arranged, an attachment 22 that performs attaching of a cable 3, and a wiring for supplying power supplied by cable 3 to the OLED panel 1.SELECTED DRAWING: Figure 1

Description

  The present invention relates to OLED lighting devices.

  OLEDs (Organic Light Emitting Diodes) are also called organic ELs (Organic ElectroLuminescence) and are relatively thin, light, and have low power consumption. Therefore, in recent years, for example, research into applications to display devices and lighting devices has been conducted. Being developed. OLED panels using such OLEDs are disclosed in, for example, Non-Patent Documents 1 to 3 and are commercially available.

Catalog; "OLEDWorks OLED Panel Brite FL300 Family Product Sheet", OLEDWorks LLC, February 2016 Catalog; "Lumiblade OLED Panel Brite FL300 nw", OLEDWorks LLC, September 2016 Catalog; "Design-in guide OLED Panel Brite 2 Family", OLEDWorks LLC, September 2016

  By the way, in order to supply power to the OLED panel, it is necessary to connect a cable (electric wire) to the OLED panel. Depending on the location where the OLED panel is used, there is a case where a hand or a leg is caught on this cable. For example, when illuminating a work on a production line with an OLED panel relatively close to the work, a cable near the OLED panel is caught or a cable routed to connect to an outlet while working on the work. You may get caught in your legs. When a hand or a foot is caught on the cable, a tensile force is applied to the cable, and the tensile force is concentrated on a connecting portion between the cable and the OLED panel, which may cause a connection failure at the connecting portion. Therefore, in order to increase the connection strength, a measure to increase the amount of solder in the connection portion can be considered. However, in the OLED panel, the electrode terminal (electrode pad) for connecting to the cable in the connection portion has a small area, and thus it is difficult to deposit a large amount of solder. Even if more solder could be deposited, the height of the deposited solder would exceed the surface of the OLED panel (for example, the back surface), and when the OLED panel was housed in the casing, the solder deposited by the solder The surface of the OLED panel cannot be in close contact with the surface of the casing. Even if an attempt is made to form a recess so that more solder can be deposited, it is difficult to deepen the recess because the thickness of the OLED panel is, for example, about 1 to 3 mm.

  The present invention is an invention made in view of the above-mentioned circumstances, and an object thereof is to provide an OLED lighting device capable of further increasing resistance to cable pulling.

  As a result of various studies, the present inventor has found that the above object can be achieved by the following invention. That is, an OLED lighting device according to an aspect of the present invention includes an OLED panel, a main body part in which all or part of the OLED panel is arranged, an attachment part for attaching a cable, and power supplied by the cable. And a substrate member having wiring for supplying power to the OLED panel. Preferably, in the OLED lighting device described above, in the substrate member, the attachment portion is extended from the main body portion, and the wiring is printed on each surface of the main body portion and the attachment portion, thereby the main body portion, It is a printed circuit board in which the accessory and the wiring are integrated. Preferably, in the above-mentioned OLED lighting device, the main body section and the attachment section are separate bodies, and the wiring is provided on the surface of the main body section and the first sub-wiring and the surface of the attachment section. A printed second sub-wiring and a lead wire connecting the first sub-wiring and the second sub-wiring are provided. Preferably, in the OLED lighting device described above, the main body portion has substantially the same size as the OLED panel in a plan view. Preferably, in the OLED lighting device described above, the OLED panel has a rectangular shape or a circular shape in a plan view.

  Since such an OLED lighting device is provided with the above-mentioned attachment part, it is possible to put solder in an amount not only for electrical connection but also for increasing connection strength and arrange a connector, so that the cable pulling Can be more resistant to.

  In another aspect, the OLED lighting device described above further includes a casing that houses and supports the substrate member, and a fixing member that fixes the appendage to the casing. Preferably, in the OLED lighting device described above, the fixing member is a double-sided tape or an adhesive.

  In such an OLED lighting device, since the attachment part is fixed to the casing by the fixing member, the resistance against the pulling of the cable can be further increased.

  In another aspect, these OLED lighting devices further include a pressing member that presses the cable against the casing.

  Since such an OLED lighting device further includes the pressing member, the cable is sandwiched between the casing and the pressing member, so that the resistance against pulling of the cable can be further increased.

  In another aspect, in these OLED lighting devices described above, the attachment part extends from a part of the outer periphery of the main body part. Preferably, in the above-mentioned OLED lighting device, the OLED panel has a rectangular shape in a plan view, the main body has a rectangular shape in a plan view, and the attachment part has a rectangular shape in the main body. It extends from a part of one side.

  The OLED panel realizes a compact size in the front view by reducing the area excluding the light emitting area where light is emitted as much as possible. In the OLED lighting device, since the attachment portion is extended from a part of the outer periphery of the main body portion in which the OLED panel is arranged, the attachment portion can be realized with a minimum required addition to the size of the OLED panel. . In particular, in machine vision in which an image obtained by capturing an image of a work with an image sensor in which a plurality of photoelectric conversion elements are arranged in a one-dimensional or two-dimensional array is processed according to a predetermined purpose, It is necessary to dispose the OLED illuminating device so that the work can be illuminated from the irradiation direction that easily achieves the above purpose. In the OLED lighting device, since the attachment part is extended from a part of the outer circumference of the main body part, when the OLED lighting device is arranged for machine vision, it is different from other members and devices at the installation location. The interference with the OLED lighting device can be reduced. For example, when the OLED panel has a rectangular shape in a plan view, it is sufficient to extend the attachment part on only one side, so that the remaining three sides can be maintained as they are.

  The OLED lighting device according to the present invention can have higher resistance to cable pulling.

It is an exploded perspective view showing composition of an OLED lighting device in an embodiment. It is for explaining a configuration of a part of the OLED lighting device. It is sectional drawing which shows the structure of the OLED panel with which the said OLED illuminating device is equipped. It is a figure for demonstrating the modification of the said OLED illuminating device. It is a figure for demonstrating the electric power feeding electrode in an OLED panel as an example.

  Hereinafter, one or more embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the disclosed embodiments. It should be noted that in each of the drawings, the components denoted by the same reference numerals indicate the same components, and the description thereof will be appropriately omitted. In the present specification, reference numerals without suffixes are used for generic names, and reference numerals with suffixes are used when referring to individual components.

  FIG. 1 is an exploded perspective view showing the configuration of the OLED lighting device according to the embodiment. FIG. 2 is for explaining the structure of a part of the OLED lighting device. 2A to 2C show the configuration of the OLED lighting device shown in FIG. 1 excluding the cover member 7, the pressing member 6, the second connector 5 and the cable 3, and FIG. 2A is a perspective view, 2B is a top view, FIG. 2C is a cross-sectional view taken along the line I-I of FIG. 2B, and FIG. 2D is a rear view of the substrate member 2. FIG. 3 is a sectional view showing a configuration of an OLED panel included in the OLED lighting device.

  The OLED lighting device S in the embodiment includes, for example, as shown in FIGS. 1 to 3, an OLED panel 1, a substrate member 2, a cable 3, a first connector 4, a second connector 5, and a holding member 6. A cover member 7, a casing 8, a screw 9, and a fixing member 10.

  The OLED panel 1 is a device that includes an OLED (Organic Light Emitting Diode) and emits light when supplied with power. In the present embodiment, in order to illuminate the work surface, the OLED panel 1 emits light on the surface (two-dimensional). The OLED panel 1 may have any shape such as a polygonal shape or a circular shape in a plan view, but in the present embodiment, it has a rectangular shape in a plan view. The OLED panel 1 may be monochromatic or white depending on the application. The OLED panel 1 includes an organic light emitting layer between a pair of first and second electrodes, and when electric power is supplied to the first and second electrodes, recombination of electrons and holes in the organic light emitting layer. Emits light. Such an OLED panel 1 is, for example, as shown in FIG. 3, an optical protective layer 11, an optical substrate 12, a first electrode layer 13, an organic light emitting layer 14, a second electrode layer 15, and a sealing layer. A stop layer 16 and a metal protective layer 17 are provided.

  The optical substrate 12 is a support member that supports the first electrode layer 13, the organic light emitting layer 14, the second electrode layer 15, the sealing layer 16, and the metal protective layer 17, which are formed on the optical substrate 12. The optical substrate 12 is formed of, for example, resin or glass that transmits at least light emitted from the organic light emitting layer 14. The optical substrate 12 is formed in a plate shape (layer shape) such as a rectangular shape or a circular shape.

  The optical protection layer 11 is a layer (two-dimensionally, layered, film-shaped) laminated on one main surface of the optical substrate 12 to protect the surface of the optical substrate 12, and the organic light emitting layer 14 emits light. Formed of resin, for example, which allows at least light to pass therethrough.

  The first and second electrode layers 13 and 15 are members that form a pair with each other and supply electric power supplied from the outside to the organic light emitting layer 14. In the present embodiment, the first electrode layer 13 is an anode electrode (+ electrode) and is laminated in a planar shape on the other main surface of the optical substrate 12. In the present embodiment, since the light emitted from the organic light emitting layer 14 is emitted from the first electrode layer 13 side, the first electrode layer 13 transmits at least the light emitted from the organic light emitting layer 14, for example, ITO ( It is formed of a compound (transparent electrode material) having transparent conductivity such as Indium Tin Oxide), IZO (Indium Zinc Oxide), and ZnO (Zinc Oxide). In the present embodiment, the second electrode layer 15 is a cathode electrode (−electrode), and is laminated in a planar shape on the organic light emitting layer 14 so as to face the first electrode layer 13 with the organic light emitting layer 14 interposed therebetween. It In the present embodiment, in order to reflect the light emitted from the organic light emitting layer 14 to the first electrode layer 13 side, at least the light emitted from the organic light emitting layer 14 is reflected, such as silver (Ag) or platinum (Pt). ), Aluminum (Al), and other metals (including alloys). The second electrode layer 15 may also be formed of the above-mentioned transparent electrode material in order to radiate the light emitted from the organic light emitting layer 14 from both sides.

  The organic light emitting layer 14 is a member that is laminated on the first electrode layer 13 in a planar shape and emits light when power is supplied by the pair of first and second electrode layers 13 and 15. The organic light emitting layer 14 is, for example, a hole injection layer (HIL) / hole transfer layer (HTL) / light emitting layer (EML: Emissive Layer) / electron transfer layer (ETL: Electron Transfer Layer). Layer / electron injection layer (EIL: Electron Injection Layer). As the organic light emitting layer 14, in addition to the above, for example, a light emitting layer / electron transport layer, a hole transport layer / light emitting layer / electron transport layer, a hole transport layer / light emitting layer / positive layer Pore blocking layer / electron transport layer, hole transport layer / light emitting layer / hole blocking layer / electron transport layer / buffer layer, buffer layer / hole transport layer / light emitting layer unit / Examples thereof include those composed of a hole blocking layer / electron transport layer / buffer layer. The organic light emitting layer 14 may be multi-layered in order to increase the amount of light.

  The sealing layer 16 is laminated on the second electrode layer 15 and as described above by exposing a part of the first and second electrode layers 13 and 15 to the outside so that electricity can be applied from the outside. The first electrode layer 13, the organic light emitting layer 14, and the second electrode layer 15 are formed so as to cover the side surfaces of the first electrode layer 13, the organic light emitting layer 14, and the second electrode layer 15, so that the first electrode layer 13, the organic light emitting layer 14, and the second electrode together with the optical substrate 12. It is a member that seals the layer 15. The sealing layer 16 suppresses deterioration of the organic light emitting layer 14.

  The metal protective layer 17 is a layer that is laminated on the sealing layer 16 in a planar shape and protects the surface of the sealing layer 16, and is made of, for example, metal.

  In the OLED panel 1 having such a configuration, one main surface that emits the light emitted from the organic light emitting layer 14 is hereinafter appropriately referred to as “upper surface”, and the other main surface opposite to the upper surface (one main surface) is appropriately referred to. Will be referred to as the "rear surface" as appropriate. Then, as shown in FIG. 1, an XYZ orthogonal coordinate system is set in which the line segments along the horizontal direction, the vertical direction, and the thickness direction of the OLED panel 1 are the X axis, the Y axis, and the Z axis, respectively. The designations of the X direction, the Y axis, the Y direction, the Z axis, and the Z direction will be appropriately used below.

  The substrate member 2 is a member for supplying the OLED panel 1 with electric power supplied from the outside via the cable 3. In the present embodiment, the board member 2 is a plate-shaped main body portion 21 on which all or part of the OLED panel 1 is arranged, a plate-shaped attachment portion 22 for mounting the cable 3, and power supplied by the cable 3. Is provided for supplying power to the OLED panel 1.

  The main body 21 may be larger in size than the OLED panel 1, but in order to be compact, in the present embodiment, the main body 21 is substantially the same size as the OLED panel 1 in plan view. In the present embodiment, the main body portion 21 is divided into two at predetermined positions in the lateral direction (that is, the X-axis direction) of the OLED panel 1, and is provided on each of the pair of first and second electrode layers 13 and 15. OLED having a pair of electrode terminals (electrode pads) (or a pair of electrode terminals (electrode pads) connected to the pair of first and second electrode layers 13 and 15 via respective wirings) A first main body portion 211 having a rectangular shape in plan view, in which a part of the panel 1 is disposed, and a second main body portion 212 in rectangular shape in plan view, in which the remaining portion of the OLED panel 1 is disposed, are provided. The lengths in the vertical direction (lengths in the Y direction) of the first and second body portions 211 and 212 are substantially equal to the lengths in the vertical direction (length in the Y direction) of the OLED panel 1, and The sum of the horizontal lengths of the second main body portions 211 and 212 (the sum of the X lengths) is substantially equal to the horizontal length of the OLED panel 1 (the X length).

  In the present embodiment, the attachment part 22 extends from the first main body part 211. More specifically, the attachment part 22 is extended from a part of the outer circumference of the first main body part 211 in a predetermined size. More specifically, the attachment part 22 is part of one side along the vertical direction (Y axis) in the rectangular first main body part 211, and in the example shown in FIGS. 1 and 2, part of the center part of the one side ( It has a rectangular shape extending in the lateral direction (X direction) from the length shorter than the length of the one side. The attachment part 22 may extend from a part of an arbitrary part of the one side, such as a part of the one end part of the one side of the rectangular first main body part 211. That is, the attachment part 22 may extend from the first body part 211 at any position in the vertical direction (Y axis) on the one side. In the case where the cable 3 is directly attached to the attachment portion 22 by soldering, the predetermined size of the attachment portion 22 is such that at least an amount of solder is added not only for electrical connection but also for enhancing connection strength. In the present embodiment, the size is such that at least the first connector 4 can be attached.

  The wiring (not shown) is printed on one main surface of each of the first body portion 211 and the attachment portion 22, and the first body portion 211, the attachment portion 22, and the wiring (not shown) are not shown in the present embodiment. , And is integrally configured as a printed circuit board.

  One end of the cable 3 may be attached to the above-mentioned wiring (not shown) in the attachment portion 22 with an amount of solder not only for electrical connection but also for increasing the connection strength, but in the present embodiment, It is attached with first and second connectors 4, 5. More specifically, the second connector 5 such as a male connector is attached to one end of the cable 3, and the accessory portion 22 is electrically connected to the above-mentioned wiring (not shown) so that, for example, on one main surface. The first connector 4 of the female connector is attached. The other end of the cable 3 is directly or via a connector connected to a drive circuit for supplying power to turn on / off the OLED panel 1. In the example shown in FIGS. 1 and 2, a cable 3 having an electric wire with a relatively small wire diameter is used to reduce the thickness, and the amount of electric power that can be supplied by one to two electric wires in this cable 3 is OLED. Since the amount of electric power required for the panel 1 is less than the required amount, the cable 3 is composed of two to four electric wires of two power supply lines and two ground lines. If the OLED panel can supply electric power required for electric wires of 1: 2, the cable 3 may be composed of 1: 2 of electric wires.

  As shown in FIG. 2D, in the first main body portion 211 having such a configuration, the wiring (not shown) and the electrode terminals of the OLED panel 1 are electrically connected, and the attachment portion 22 has the attachment portion 22 in a top view. The OLED panel 1 is fixedly attached to one end portion on the back surface of the OLED panel 1 so as to protrude from the OLED panel 1. In this state, a step in the thickness direction (Z direction) is generated between the surface of the first main body 211 and the back surface of the OLED panel 1 to which the first main body 211 is not attached. Therefore, in the present embodiment, in order to eliminate this step, the second main body portion 212 having the same thickness as the first main body portion 211 is provided at the other end on the back surface of the OLED panel 1 to which the first main body portion 211 is not attached. It is fixedly attached to a portion (a remaining portion of the back surface of the OLED panel 1 excluding the one end portion) with an adhesive or the like. In this way, when the main body portion 21 is composed of one printed circuit board by configuring the main body portion 21 with the first main body portion 211 of the printed circuit board and the second main body portion 212 of the plate material that is not the printed circuit board. In comparison, it is possible to reduce costs.

  The main body 21 may be composed of one printed circuit board. When the light emitting area has a relatively small area, the OLED panel 1 is configured to include a pair of electrode terminals provided at one place as in the present embodiment, but the light emitting area is relatively small. When the area becomes large, unevenness in brightness occurs due to a voltage drop generated in the electrode layer formed of the transparent electrode member in the OLED panel 1. Therefore, a plurality of pairs of electrode terminals are provided at a plurality of locations. There are cases. Particularly, in such a case, the main body 21 is composed of one printed circuit board. In addition, the main body portion 21 may be configured by only the first main body portion 211 while omitting the second main body portion 212 so as to dispose a part of the OLED panel 1. In this case, as described above, a step in the thickness direction (Z direction) occurs between the surface of the first main body 211 and the back surface of the OLED panel 1 to which the first main body 211 is not attached. In order to eliminate this step, a double-sided tape having the same thickness as the first main body 211, an adhesive, or the like may be provided on the back surface of the OLED panel 1 to which the first main body 211 is not attached. As a result, the space between the back surface of the OLED panel 1 to which the first main body 211 is not attached and the casing 8 is filled with a double-sided tape having the same thickness as the first main body 211, an adhesive, or the like.

  The casing 8 is a member that houses and supports the substrate member 2. More specifically, in the present embodiment, the casing 8 has a height at which each of the side walls 81- accommodates the substrate member 2 on which the OLED panel 1 is arranged and the holding member 6 juxtaposed in the lateral direction (X direction). It is a metal plate in which three sides are bent substantially vertically so as to be 1, 81-2, 81-3. A casing side screw hole 82 (82-1, 82-2) for attaching the pressing member 6 and a casing side attaching hole 83 for attaching the OLED lighting device S to another member are provided at one end of the bottom of the casing 8. (83-1, 83-2) are formed by through openings.

  The pressing member 6 is a member that presses the cable 3 against the casing 8. More specifically, in the present embodiment, the pressing member 6 is a plate-shaped member provided with a notch so as not to interfere with the attachment portion 22 of the substrate member 2. More specifically, the holding member 6 includes a holding body 61 having a rectangular shape and a plate shape having the same length as the length of the OLED panel 1 in the vertical direction (Y direction), and both end portions of the holding body 61. The first and second arm portions 62-1 and 62-2 extending in the horizontal direction (X direction) are provided, and the length between the first and second arm portions 62-1 and 62-2 (the length in the vertical direction). ) Is longer than the vertical length of the attachment portion 22, and the horizontal length of each of the first and second arm portions 62-1 and 62-2 is longer than the horizontal length of the attachment portion 22. That is, the pressing member 6 has a substantially U-shape in a plan view, and is formed to have a size capable of disposing (accommodating) the attachment portion 22 in the substantially U-shaped cutout portion. On the back surface of the pressing body 61, a recess 611 for fitting the cable 3 extends in the lateral direction (X direction) with a depth slightly shorter than the thickness of the cable 3 (slightly shallow depth, length in Z direction). Is formed. The pressing body 61 has pressing-side screws corresponding to the casing-side screw holes 82 (82-1, 82-2) and the casing-side mounting holes 83 (83-1, 83-2) formed in the casing 8. The holes 612 (612-1, 612-2) and the pressing side attachment holes 613 (613-1, 613-2) are formed as through openings.

  The OLED panel 1, the substrate member 2, the cable 3, the first connector 4, and the second connector 5 assembled as described above are such that the other end portions of the OLED panel 1 and the second main body portion 212 have the end faces of the casing 8. The other end is brought into contact with the inner surface of the side wall 81-2, and the surface of the substrate member 2 (each surface of the first main body portion 211, the second main body portion 212, and the attachment portion 22) is brought into contact with the bottom surface of the casing 8. They are brought into contact with each other and are housed and arranged in the casing 8. At this time, as shown in FIG. 2D, the attachment portion 22 is fixed to the casing 8 by the fixing member 10 such as a double-sided tape or an adhesive. At least one of the first and second body portions 211 and 212 may be fixed to the casing 8 with a double-sided tape or an adhesive, for example. In the present embodiment, the attachment portion 22 is arranged (accommodated) between the first and second arm portions 62-1 and 62-2, and the cable 3 is arranged in the recess 611 formed on the back surface of the pressing body 61. Thus, the pressing member 6 is arranged so as to be juxtaposed in the lateral direction on the OLED panel 1. Then, the fixing screws 9 (91, 92) for fixing the pressing member 6 to the casing 8 are pressed through the casing side screw holes 82 (82-1, 82-2) through the pressing side screw holes 612 (612-1, 612-2). As a result, the pressing member 6 is fixed to the casing 8 by the fixing screw 9, and the cable 3 is pressed against the casing 8 by the pressing member 6 in the recess 611.

  Then, from the viewpoint of aesthetics, the cover member 7 is arranged. In the present embodiment, the cover member 7 includes the first cover member 71 for blinding the non-light emitting area of the OLED panel 1, the attachment portion 22, the end portion of the cable 3, the first connector 4, the second connector 5, and the pressing member. And a second cover member 72 for blinding the member 6. The first cover member 71 is a sheet-like member that is substantially the same size as the OLED panel 1 in a plan view and has an opening in a region corresponding to a light emitting region of the OLED panel 1. In the present embodiment, since the outer shape and the light emitting region of the OLED panel 1 are rectangular, the first cover member 71 has a rectangular outer shape and a rectangular opening having a size slightly smaller than the outer size. The formed sheet-shaped member. The second cover member 72 is a rectangular sheet-like member that covers the first arm portion 62-1 to the second arm portion 62-2 of the pressing member 6. In such a cover member 7, the first cover member 71 is attached to the upper surface of the OLED panel 1 by a double-sided tape or an adhesive, and the second cover member 72 is formed from the first arm portion 62-1 to the second arm portion. It is stuck on the surfaces of the first and second arm portions 62-1 and 62-2 so as to cover up to 62-2 with a double-sided tape or an adhesive.

Next, the function and effect of the OLED lighting device S in this embodiment will be described. FIG. 5 is a diagram for explaining a power supply electrode in an OLED panel as an example. 5A shows a back surface of the OLED panel, FIG. 5B shows an enlarged view of a portion surrounded by a circle in FIG. 5A, and FIG. 5C shows a sectional view taken along a II-II sectional line shown in FIG. 5B. FIG. 5 is a diagram extracted from page 23 of Non-Patent Document 2. When the cable is directly attached to the OLED panel, the cable is attached to the + electrode and the-electrode shown in FIG. 5 by soldering, for example. The + electrode and the-electrode have a very small area because the OLED panel is designed to be as light and compact as possible. In the example shown in FIG. 5, it is about 1.6 mm × 1.6 mm = 2.56 mm ² . Therefore, it is difficult to deposit a large amount of solder in order to enhance the connection strength. Even if it is possible to lay more solder on the small area + electrode and − electrode, the solder height exceeds the back surface of the OLED panel because of the large amount of solder, and the OLED panel is housed in the casing. In doing so, the surface of the OLED panel cannot be brought into close contact with the surface of the casing due to the high solder. Even if an attempt is made to form a recess so that a larger amount of solder can be deposited, the thickness of the OLED panel is about 1 mm as in the example shown in FIG. difficult.

  On the other hand, since the OLED lighting device S according to the present embodiment includes the attachment portion 22, solder is applied in an amount not only for electrical connection but also for increasing the connection strength, and the connector (the above-described first connector 4 ) Can be provided, the resistance against the pulling of the cable 3 can be further increased.

  In the OLED lighting device S, since the attachment portion 22 is fixed to the casing 8 with the fixing member 10, the resistance to the pulling of the cable 3 can be further increased.

  Since the OLED lighting device S further includes the pressing member 6, the cable 3 is held between the casing 8 and the pressing member 6 in the recess 611, so that the resistance of the cable 3 to pulling can be further increased.

  The OLED panel realizes a compact size in the front view by reducing the area excluding the light emitting area where light is emitted as much as possible. In the OLED lighting device S, the attachment part 22 is extended from a part (a part of one side of the first main body 211 in the above example) of the main body 21 in which the OLED panel 1 is arranged. On the other hand, the attachment portion 22 can be realized with the minimum necessary addition. In particular, in machine vision in which an image obtained by capturing an image of a work with an image sensor in which a plurality of photoelectric conversion elements are arranged in a one-dimensional or two-dimensional array is processed according to a predetermined purpose, It is necessary to dispose the OLED illuminating device so that the work can be illuminated from the irradiation direction that easily achieves the above purpose. In the OLED lighting device S, since the attachment part 22 extends from a part of the outer periphery of the main body part 21, when the OLED lighting device S is installed for machine vision, other members at the installation location and The interference between the device and the OLED lighting device S can be reduced. For example, when the OLED panel 1 has a rectangular shape in a plan view, it is sufficient to extend the attachment portion 22 on only one side, so that the remaining three sides can be maintained as they are.

  In addition, in the above-described embodiment, the attachment part 22 is extended from the first body part 211 of the body part 21, but may be a separate body from the body part 21.

  FIG. 4 is a diagram for explaining a modification of the OLED lighting device. Similar to FIG. 2, FIG. 4 is a top view of the OLED lighting device Sa in a modified form, showing the configuration without the cover member 7, the pressing member 6, the second connector 5, and the cable 3.

  The OLED lighting device Sa in this modification is configured in the same manner as the OLED lighting device S described above, except that the substrate member 2a including the main body portion 21 and the attachment portion 22a that is a separate body is provided as described above. The board member 2a includes a main body portion 21, an attachment portion 22a, and wiring. The main body portion 21 in this modification is the same as the main body portion 21 including the above-described first and second main body portions 211 and 212, except that the main body portion 21 is a separate body from the attachment portion 22a. The attachment 22a is the same as the attachment 22 described above, except that the attachment 22a is separate from the main body 21. The wiring includes the first sub wiring (not shown) printed on the surface of the main body portion 21, the second sub wiring (not shown) printed on the surface of the attachment portion 22a, the first sub wiring, and the second sub wiring. A lead wire 24 (24-1, 24-2) connecting the wiring is provided. The first sub-wiring not shown is the same as the wiring not shown above printed on the first main body portion 211, and the second sub-wiring not shown is the above-mentioned wiring printed on the attachment portion 22. This is similar to the wiring (not shown). By thus forming the attachment part 22a as a separate body from the main body part 21, the attachment part 22a can be retrofitted to the OLED panel already having the substrate member, and the connection strength can be enhanced by the retrofitting.

  In order to represent the present invention, the present invention has been described above appropriately and sufficiently through the embodiments with reference to the drawings, but those skilled in the art can easily modify and / or improve the embodiments. It should be recognized that this is possible. Therefore, unless a modification or improvement carried out by a person skilled in the art is at a level that deviates from the scope of rights of the claims recited in the claims, the modification or the improvement is covered by the scope of rights of the claims. Is understood to be included in.

S, Sa OLED lighting device 1 OLED panel 2, 2a Substrate member 3 Cable 4 First connector 5 Second connector 6 Holding member 8 Casing 10 Fixing member 21 Main body 22, 22a Attaching portion 211 First main body 212 Second main body

Claims (4)

OLED panel,
A main body part for disposing all or a part of the OLED panel, an attachment part for attaching a cable, and a substrate member provided with wiring for supplying electric power supplied by the cable to the OLED panel,
OLED lighting device. A casing that accommodates and supports the substrate member,
Further comprising a fixing member for fixing the appendage to the casing,
The OLED lighting device according to claim 1. Further comprising a pressing member for pressing the cable to the casing,
The OLED lighting device according to claim 1 or 2. The appendage extends from a portion of the outer circumference of the body,
The OLED lighting device according to any one of claims 1 to 3.

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