JP6474245B2 - Flexible light emitting panel packaging structure - Google Patents

Description

  The present invention relates to a packaging structure in which light-emitting elements such as surface-mounted LEDs are mounted in a predetermined arrangement pattern, and a flexible light-emitting panel having flexibility as a physical property of a printed circuit board itself is packaged for protection.

  A light emitting element such as an LED (light emitting diode) is arranged in a dot matrix on a printed circuit board, and a dot matrix display device that emits and displays characters, image images, pictograms, etc. by selectively driving each LED to flash, Similarly, there is known a light-emitting display device in which light-emitting elements are arranged along a contour shape of a predetermined character or pattern, and a specific character / pattern is fixedly emitted and displayed. There is also known an illumination light-emitting device in which light-emitting elements such as LEDs are arranged substantially uniformly on a printed circuit board with a predetermined interval and housed inside an internally illuminated signboard for use as a light source. In these devices, a device that employs a flexible substrate as a printed circuit board and mounts LEDs on the flexible printed circuit board to obtain various curved LED light emitting surfaces is known. (Patent Document 1). Thus, even if the LED display device provided with flexibility has a curved shape or a curved surface, the light emitting display surface can be formed along the shape, and has a curved surface as well as a planar shape. The shape LED light emitting display surface can be configured, and the degree of freedom of design is increased.

  As an overall system configuration of the flexible LED display device, there is a display unit that arranges and configures a printed circuit board on which an LED is mounted according to the installation location, and lighting control of the LED array surface formed as the entire display unit. It comprises a display control unit to be performed and a power supply unit for supplying power to the display unit and the display control unit. By appropriately arranging these elements, it is possible to flexibly support installation in different locations of installation environments. In particular, with regard to the display unit, the shape and size of the mounting surface differs depending on the installation location, so that the handling unit of the printed circuit board is made as compact as possible in order to enable fine correspondence. The smallest unit is the one-dot display dot matrix placed on a single printed circuit board. This is the most compatible, but on the other hand, the packaging is wasted and the quantity There are also disadvantages such as complicated handling, and from the standpoint of overall balance, a handling unit in which a dot matrix of multiple characters (about 2 to 3 characters) is arranged on one printed board is adopted. ing. And since the handling unit of the printed circuit board constituting the display unit is made compact in this way, when constructing an installation project, a large number of individually printed circuit boards will be handled. A lot of handling work by humans occurs at each stage, such as delivery to the installation site and installation work at the site.

JP-A-10-116039

  As described above, since many scenes of handling work occur from the factory shipment to the completion of the installation work, there is a possibility that damage associated with the handling work will occur accordingly. In addition, the flexible light-emitting panel has the advantage of flexibility, which is its greatest feature, and at the same time has a disadvantage. The minimum bend radius that can bend the flexible light-emitting panel is determined. If the bend exceeds the minimum bend radius, the soldered part of the electronic component mounted on the printed circuit board will be peeled off, resulting in failure. It is. In particular, in a flexible printed circuit board that has increased flexibility by mounting a surface-mounted LED on a printed circuit board made of silicon rubber, it is easy to bend beyond the limit if care is insufficient when handling it. There was a thing. Situations where damage due to excessive bending is likely to occur include situations where the installation work is unpacked at the installation site and the installation work is prepared in the state of the smallest printed circuit board, and a lighting check is performed to confirm initial defects before installation. There are situations where the When such a work is performed, the error occurs in the operation of holding the printed circuit board in hand.

  The present invention has been made in response to the above problems, and a packaging structure that prevents damage caused by excessive bending, which is likely to occur during product handling from factory shipment until the completion of installation of the display device, as much as possible. The purpose is to provide.

(1) In order to achieve the above object, the present invention provides a packaging structure in which a light emitting element is mounted and a flexible light emitting panel including a power cable and a light emission control signal connector is packaged. A panel container in which a rectangular opening corresponding to the vertical and horizontal dimensions of the flexible light-emitting panel is formed in a plate-shaped cushioning material having a thickness equal to or greater than the thickness of the panel, and one side with respect to the opening of the panel container A plate-like back surface sealing body covering and covering the entire surface of the opening from the surface, a cable lead-out hole formed in the back surface sealing body for passing the power cable through the back surface sealing body, and the back surface sealing A connector exposure hole formed in the back sealing body for exposing the light emission control signal connector through a stationary body, and the other surface opposite to the one surface with respect to the opening of the panel container; From opening A sheet-like and translucent front sealing body that covers and covers the entire surface, and is formed in the space formed by the opening of the panel container, the back sealing body, and the front sealing body. In a state where the light emitting element mounting surface of the flexible light emitting panel faces the surface covered with the front sealing body, the power cable is pulled out through the cable lead hole, and the light emission control signal connector is connected to the connector exposure hole. The flexible light-emitting panel packaging structure is characterized in that the flexible light-emitting panel is housed in an exposed state through which the current-carrying inspection of the flexible light-emitting panel can be performed.

  (2) Further, the front sealing body is preferably made of a translucent film, translucent paper, or translucent film.

  (3) Moreover, it is desirable that the cushioning material is made of cardboard.

  According to the present invention, the flexible light-emitting panel that can be bent easily is accommodated in an accommodation space formed of a plate-shaped cushioning material, thereby giving rigidity as a whole. It becomes possible to conduct a current check. Since the product is given rigidity, it is possible to greatly reduce the damage trouble that would cause the flexible light-emitting panel to be bent excessively when handling the product in the packaged state from the factory shipment to the completion of the installation work. . In addition, since the current-carrying inspection can be performed while protecting the flexible light-emitting panel with the packing material, the product should be used with the packing material as much as possible in situations where operational carelessness is likely to occur, such as at the product installation work site. It can be placed in a protected state, and damage can be prevented from occurring.

  In addition, since the front sealing body of the packaging material that protects the light emitting display surface side of the flexible light emitting panel is composed of a translucent film, translucent paper, and translucent film, the product is packaged It is possible to determine at a glance whether it is in the unpacked state or whether it is in an unpacked state, and at the same time reduce unnecessary handling operations while improving work efficiency be able to. This can reduce the possibility of causing product damage troubles.

It is explanatory drawing which shows the surface side of the flexible light emission panel which concerns on an Example of this invention. It is explanatory drawing which shows the back surface side of the flexible light emission panel which concerns on an Example of this invention. It is explanatory drawing which shows the whole system structure of a display apparatus. It is explanatory drawing which shows the packaging structure of the flexible light emission panel which concerns on an Example of this invention.

  Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view showing the front side of a flexible light emitting panel according to an embodiment of the present invention, and FIG. 2 is an explanatory view showing the back side of the flexible light emitting panel. The flexible light-emitting panel 1 includes a flexible printed board 2 having a thickness of about 7 mm and a total of 1152 dots that are mounted on the surface of the printed board 2 by being arranged in a grid of 24 dots vertically by 48 dots horizontally. The surface mount type LED 3, the power cable 4 led out from the back side of the printed board 2, and the light emission control signal connectors 5 and 6 provided on the back side of the printed board 2. The light emission control signal connector 5 is an in-side connector that receives a light emission control signal sent from a control / power supply box described later, and the light emission control signal connector 6 sends a light emission control signal to the adjacent flexible light emitting panel 1. This is the out side connector. When a plurality of flexible light emitting panels 1 are arranged according to the installation location to form a display unit of a desired size, the light emission control signal sent from the control / power supply box or the flexible light emitting panel in the previous stage is connected to the connector. 5 is sent out from the connector 6 to the subsequent flexible light-emitting panel. The power supply cable 4 is connected to a power supply cable led out from a control / power supply box, which will be described later, via a connector, so that power is supplied from the control / power supply box to the flexible light-emitting panel 1. The surface-mounted LED 3 has a red LED light-emitting element, a green LED light-emitting element, and a blue LED light-emitting element in one surface-mounted LED, and controls light emission of these three color LED light-emitting elements at an appropriate lighting ratio. Enables full color light emission display.

  Next, an overall system configuration of a display device configured by combining the flexible light emitting panel 1 will be described with reference to FIG. Reference numeral 7 denotes a display unit configured by arranging a plurality of flexible light-emitting panels 1. An appropriate number of flexible light-emitting panels can be arranged according to the installation location, and in the example shown in the figure, four pieces are arranged vertically and horizontally to form a display section with a total display area of 16 pieces. Reference numeral 8 denotes a control / power supply box, which transmits a light emission control signal to the display unit 7 and supplies power for operation. The control / power supply box 8 includes a switching power supply 8a and a control signal receiving unit 8b inside the box, and the power cable 4 of each flexible light-emitting panel 1 constituting the display unit 7 is connected to the switching power supply 8a. The light emission control signal connector 5 and the control signal receiving unit 8b of each flexible light emitting panel 1 are connected by a signal cable. The display unit 7 is arranged in a state where four flexible light emitting panel groups connected in the horizontal direction are stacked in four stages in the vertical direction, and the signal cable extended from the control signal receiving unit 8b is connected in series. The light emitting control signal connector 5 provided in the leading flexible light emitting panel among the four flexible light emitting panels is connected. The four flexible light-emitting panels connected in series have one light emission control signal connector 6 (signal-out side connector) and the other light emission control signal connector 5 (signal) between adjacent flexible light-emitting panels. The light emission control signal received by the leading flexible light-emitting panel from the control signal receiving unit 8b is sequentially sent to the subsequent three flexible light-emitting panels.

  Reference numeral 9 denotes a switchboard, and a commercial power source and a control / power supply box 8 are connected to the switchboard, respectively, and commercial power is supplied to the control / power supply box through the switchboard. Reference numeral 10 denotes a display control unit that controls the operation of the entire system. The display control unit 10 is constituted by a personal computer, and a light emission control signal is output to the control signal receiving unit 8b through the control signal transmitting unit 11. In this embodiment, a maximum of four signal cables can be connected to one control signal receiver, and four flexible light-emitting panels connected in series can be connected to one signal cable. Yes. Accordingly, a maximum of 16 flexible light-emitting panels can be connected to one control / power supply box. If a display unit having a size of more than 16 flexible light-emitting panels is configured, another control / power supply box 8 is newly prepared, and each control / power supply box has a control signal receiving unit. 8b may be connected.

  Next, the packaging structure of the flexible light-emitting panel 1 will be described with reference to FIG. Reference numeral 15 denotes a panel container, which has openings 15a each having a slightly larger dimension in the vertical and horizontal directions than the vertical and horizontal dimensions of the flexible light-emitting panel 1 in a rectangular corrugated cardboard material (buffer material). The outer dimensions of the panel container 15 are larger in the vertical and horizontal directions than the flexible light-emitting panel 1, and the opening 15a is formed on the inner side with a predetermined dimension from the outer edge. The panel housing 15 surrounds the flexible light-emitting panel 1 by accommodating the flexible light-emitting panel 1 in the opening 15a. The thickness t of the panel container 15 has a dimension (for example, 10 mm) thicker than the thickness (about 7 mm) of the flexible light-emitting panel 1, so that the flexible light-emitting panel 1 is accommodated in the opening 15 a. The panel container 15 can protect the front and back surfaces of the flexible light-emitting panel 1 and the four surrounding sides.

  Reference numeral 16 denotes a back sealing body made of a plate-like cardboard material. The vertical and horizontal dimensions are set to be larger than the vertical and horizontal dimensions of the opening 15a and smaller than the outer and vertical dimensions of the panel container 15, and the adhesive tape 17 (craft tape in this embodiment) is covered with the entire opening surface of the opening 15a. Is attached to the frame-shaped portion of the panel container 15. As a result, the back surface sealing body 16 closes the opening 15a from one surface of the panel housing body 15, and the panel housing body 15 and the back surface sealing body 16 are fixed integrally. The back sealing body has a cable lead hole 16a for pulling out the power cable 4 provided on the back surface of the flexible light emitting panel 1, and a connector exposure for exposing the light emission control signal connectors 5 and 6 of the flexible light emitting panel 1. Holes 16b and 16c are provided.

  Reference numeral 18 denotes a front sealing body made of a translucent sheet material. In this embodiment, tracing paper is used as the translucent sheet material. The tracing paper 18 also has a vertical and horizontal dimension that is larger than the vertical and horizontal dimensions of the opening 15a, and covers both sides of the opening surface on the side opposite to the surface on which the back sealing body 16 is adhered. The tape 19 is attached to the frame shape portion of the panel container 15.

  As described above, a closed space is formed by the opening 15 a, the back sealing body 16, and the front sealing body 18, and this closed space becomes a space for accommodating the flexible light-emitting panel 1. When the flexible light emitting panel 1 is accommodated in this space, the back surface of the flexible light emitting panel 1 is directed to the back sealing body 16 side, and the power cable 4 is pulled out through the cable lead hole 16a. Then, the positions of the light emission control signal connectors 5 and 6 of the flexible light emitting panel 1 and the positions of the connector exposure holes 16b and 16c are matched, and the panel is accommodated using the adhesive tape 17 (craft tape in this embodiment). Adhere to the frame-shaped part of the body 15. As a result, the light emitting display surface of the flexible light emitting panel 1 passes through the tracing paper 18 while the flexible light emitting panel 1 is accommodated in the space formed by the opening 15 a, the back sealing body 16, and the front sealing body 18. It is possible to supply power to the flexible light-emitting panel 1 and to send and send a light emission control signal from the outside while being visible from the outside. And it becomes possible to pack the flexible light-emitting panel 1 while giving rigidity, and to perform an energization test and an operation test in the packed state.

  Although the present invention is configured as described above, various implementations are possible without being limited to the present embodiment. For example, in the embodiment, corrugated cardboard is used as a cushioning material constituting the panel container and the back sealing body, but a foamed resin material may be used. In the embodiment, the vertical and horizontal dimensions of the back sealing body are set to be larger than the vertical and horizontal dimensions of the opening 15a and smaller than the external vertical and horizontal dimensions of the panel container 15. However, the vertical and horizontal dimensions of the back sealing body are It may be set slightly smaller than the vertical and horizontal dimensions, and may be attached using an adhesive tape in a state in which the back sealing body is fitted in the opening 15a. In the embodiment, tracing paper is used as the translucent sheet material. However, a translucent plastic plate, a translucent plastic sheet, Japanese paper, and cellophane paper may be used.

  According to the invention of the present application, it can be used as a packaging structure for a display device, a light emitting device, and an illuminating device configured by arranging a light emitting element such as LED and EL and a display element such as liquid crystal on a flexible printed board. .

DESCRIPTION OF SYMBOLS 1 Flexible light emission panel 2 Printed circuit board 3 Surface mount type LED
4 Power cable 5 Light emission control signal connector (in side)
6 Light emission control signal connector (out side)
7 Display Unit 15 Panel Housing 15a Opening 16 Back Sealing Body 16a Cable Drawing Hole 16a
16b Connector exposure hole (in side)
16c Connector exposed hole (out side)
18 Front sealing body

Claims (3)

A packaging structure for packaging a light-emitting element and a flexible light-emitting panel including a power cable and a light-emission control signal connector, and having a thickness greater than or equal to the thickness of the flexible light-emitting panel And a panel-like back seal that covers and covers the entire surface of the opening from one side to the opening of the panel housing. A stop, a cable lead hole formed in the back sealing body for passing the power cable through the back sealing body, and the light emission control signal connector through the back sealing body to expose the light emission control signal connector. A connector-exposed hole formed in the back sealing body and a sheet-like and translucent material covering and covering the entire surface of the opening from the other surface opposite to the one surface with respect to the opening of the panel container Front A light emitting element mounting surface of the flexible light emitting panel in the space formed by the opening of the panel container, the back surface sealing body, and the front surface sealing body. The power cable is pulled out through the cable pull-out hole in a state facing the surface covered with the body , and the light emission control signal connector is exposed through the connector exposure hole. A packaging structure for a flexible light-emitting panel, wherein an energization inspection of the flexible light-emitting panel can be performed.   2. The flexible light-emitting panel packaging structure according to claim 1, wherein the front sealing body is made of a translucent film, translucent paper, or translucent film.   The packaging structure for a flexible light-emitting panel according to claim 1, wherein the cushioning material is made of cardboard.

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