JP2005345935A - Organic el display unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an organic EL display unit which can be assembled easily by making electric wiring of an organic EL panel proper. <P>SOLUTION: The organic EL display unit comprises an organic EL panel 1 having a plurality of electrode parts 9, a case body 11 provided with a mount part 11A for arranging the organic EL panel 1, and a lead terminal 12 which is integrally provided with the case body 11 and electrically connected to the respective electrode parts 9 of the organic EL panel 1; and the case body 11 covers the organic EL panel 1 to eliminate direct contact with external components etc., and protect the organic EL panel 1 and the lead terminal 12, integrally provided to the case body 11 enabling proper electric wiring laying to the outside. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mounting structure for an organic EL panel in which an organic EL panel having a plurality of electrode portions arranged in a row is electrically routed, for example, on a printed wiring board.

  Conventionally, as this type of organic EL panel, an organic EL (electroluminescence) element in which an organic layer having at least a light emitting layer is sandwiched between a pair of electrodes is disposed on a translucent support substrate (glass substrate) and sealed. A device in which the organic EL element is hermetically sealed by a stop member is known. (For example, see Patent Document 1)

Moreover, in the organic EL panel by patent document 1 etc., in order to drive the organic EL panel, it is comprised so that it may electrically connect with the printed wiring board which mounted the drive circuit, for example, As the connection means Directly soldered and connected between the electrode part on which the organic EL panel is provided and the land part provided on the printed wiring board, or a conductive cable (conductive rubber), a flexible flat cable, etc. It is comprised so that it may connect electrically via.
JP 2002-343557 A

  By the way, in the organic EL panel by patent document 1 etc., since the translucent support substrate which comprises the organic EL panel generally employ | adopts the glass substrate, the support of an organic EL panel in the case of assembly mounting is carried out. Since there is a risk of damaging the substrate, it is necessary to consider in handling.

  The present invention aims to provide an organic EL display which can focus on the conventional problems and can provide a good electrical lead-out of the organic EL panel and can easily perform assembly workability. An organic EL panel having a plurality of electrode portions, a case body provided with a placement portion for disposing the organic EL panel, and each electrode of the organic EL panel provided integrally with the case body An organic EL display comprising: a lead terminal for electrical connection with the unit. (Claim 1)

  The organic EL display according to claim 1, wherein a printed wiring board is provided behind the case body, and a land portion of the printed wiring board and a connection terminal portion of the lead terminal are electrically routed to form. This is an organic EL display device. (Claim 2)

  3. The organic EL display according to claim 2, wherein a positioning portion for determining an assembly position is provided on each of the case body and the printed wiring board. (Claim 3)

  The organic EL display according to any one of claims 1 to 3, wherein the case body is formed of a synthetic resin material. (Claim 4)

  In the organic EL display according to the present invention, an organic EL panel having a plurality of electrode portions, a case body provided with a placement portion for disposing the organic EL panel, and the case body are provided integrally. And the lead terminal for electrically connecting to each electrode part of the organic EL panel, the organic EL panel is covered with the case body so that it does not come into direct contact with external components, etc. The EL panel can be protected, and the lead terminals provided integrally with the case body can also be used for good electrical routing to the outside, thereby achieving the intended purpose. can do.

  In the present invention, an organic EL panel having a plurality of electrode portions, a case body provided with a placement portion for disposing the organic EL panel, and a case body provided integrally with the case body, An organic EL display comprising a lead terminal for electrical connection with an electrode portion. With this configuration, the organic EL panel is covered with the case body, so that it does not come into direct contact with external components and the like, so that the organic EL panel can be protected and integrated with the case body. Electrical lead to the outside can be satisfactorily performed by the provided lead terminals.

  In the organic EL display of the present invention, a printed wiring board is provided behind the case body, and a land portion of the printed wiring board and a connection terminal portion of the lead terminal are formed by being electrically routed. As a result, electrical routing to the outside can be easily performed via the lead terminal.

  In the organic EL display according to the present invention, the case body and the printed wiring board are each provided with a positioning portion for determining the assembly position, thereby aligning the lead terminal and the land portion on the printed wiring board. Can be easily performed by the positioning portion, and the assembling work can be easily performed.

  In the organic EL display according to the present invention, the case body is formed of a synthetic resin material, so that it can be set while maintaining insulation with external parts and the like, and can be simplified by resin molding. In addition, there is an effect that it can be configured at low cost.

  Hereinafter, an example of an organic EL display provided with a segment type organic EL panel according to the present invention will be described with reference to the accompanying drawings.

  FIGS. 1 to 5 show a first embodiment of the present invention. The structure of an organic EL panel in the first embodiment will be described with reference to FIGS. The organic EL panel 1 includes a transparent electrode (anode) 3 provided with a Japanese-shaped display segment portion and a lead portion that is drawn from each display segment portion on a glass substrate 2 with a conductive material such as ITO. And forming an organic layer 4 on the transparent electrode 3 (display segment portion) by sequentially laminating a hole injection layer, a hole transport layer, a light emitting layer and an electron transport layer. A back electrode (cathode) 5 such as aluminum is formed on the substrate, and a concave sealing cap 6 made of a glass material is formed on the support substrate 2 so as to cover the transparent electrode 3, the organic layer 4 and the back electrode 5. The organic EL panel 1 is configured to be airtightly disposed through an adhesive 7. The organic EL panel 1 is configured such that the light emitting layer has a predetermined shape by applying a DC voltage between the transparent electrode 3 and the back electrode 5. It emits light. In addition, the organic EL panel 1 has an insulating layer 8 made of polyimide or the like in the peripheral portion of the transparent electrode 3 in order to clearly display the outline of the light emitting region or to ensure insulation between the transparent electrode 3 and the back electrode 5. Are formed on the glass substrate 2 so as to slightly overlap.

  Further, in the organic EL panel 1, a group of electrode portions 9 extended from the lead portions of the transparent electrode 3 and the back electrode 5 are concentrated on one side of the glass substrate 2 having a rectangular shape. The formation region of the electrode unit 9 group is configured to be exposed from the sealing cap 6.

  A frame-shaped case body 11 for setting the organic EL panel 1 is provided. The case body 11 is formed of a synthetic resin material, and the organic EL panel 1 is placed on the upper surface side of the case body 11. A placement portion 11A for placement and support is provided, and a frame-shaped peripheral wall portion 11B is integrally provided from the case body 11 around the placement portion 11A.

  In addition, a plurality of electrode portions 9 of the organic EL panel 1 are electrically connected to the placement portion 11A of the case body 11 corresponding to the position of the group of electrode portions 9 of the organic EL panel 1 set on the placement portion 11A. A plurality of lead terminals 12 are insert-molded in the case body 11.

  In this case, the lead terminal 12 has a contact piece 12 </ b> A provided so as to be bent at the upper end side thereof and in contact with the electrode group 9 group of the organic EL panel 1, and the lower end side thereof is partially extended from the bottom of the case body 11. And a connection terminal portion 12B protruding from the contact terminal 12A of each lead terminal 12 and the electrode portion 9 group of the organic EL panel 1 are electrically connected, for example, by soldering or using a conductive adhesive. Like to do.

  Reference numeral 13 denotes a printed wiring board in which at least a circuit for driving the organic EL panel 1 is incorporated. A connection terminal portion 12B of the lead terminal 12 is inserted into an insertion hole 13A provided in the printed wiring board 13. The land portion 13 </ b> B and the connection terminal portion 12 </ b> B that are later formed on the printed wiring board 13 are connected by soldering, and the organic EL pal 1 is mounted on the printed wiring board 13 together with the case body 11. .

  The case body 11 is provided with positioning protrusions 11C. Corresponding to the positioning protrusions 11C, positioning holes 13C are provided on the printed wiring board 13 to constitute the positioning portion 14. Therefore, when the case body 11 is set on the printed wiring board 13, the positioning protrusion 11C of the case body 11 is first guided and guided into the positioning hole 13C of the printed wiring board 13, so that the case body 11 is provided. The connection terminal portion 12B of the lead terminal 12 can be easily aligned with the insertion hole 13A on the printed wiring board 13.

  In this embodiment, the tip end portion of the positioning projection 11C provided on the positioning portion 14 is heat-fitted so that the fixing means between the positioning means of the case body 11 and the printed wiring board 13 is also used. ing.

In the organic EL display according to the first embodiment configured as described above, the organic EL panel 1 is configured on the basis of the glass substrate 2. However, by covering the organic EL panel 1 with the case body 11, external components are formed. The organic EL panel 1 can be protected, and the lead terminals 12 provided integrally with the case body 11 can be electrically routed to the outside. be able to.

  In addition, the organic EL panel 1 set and attached and fixed to the case body 11 as an organic EL display device in this way has positioning protrusions 11C provided on the case body 11 in positioning holes 13C provided on the printed wiring board 13. By feeding along, the connection terminal portion 12B of the lead terminal 12 provided on the case body 11 can be easily aligned with the insertion hole 13A on the printed wiring board 13.

  In addition, by forming the case body 11 from a synthetic resin material, it can be set while maintaining insulation with external electrical components, etc., so that problems such as short-circuiting can be prevented in advance, It can be configured simply and inexpensively by resin molding, and there is also an effect that it can be compactly packed without taking up a large space.

  FIGS. 6 and 7 show the second embodiment of the present invention. The structure of the organic EL panel in the second embodiment is the same as that shown in FIGS. 1 to 3 of the first embodiment. Therefore, the description is omitted.

  In the second embodiment, a frame-like case body 11 for setting the organic EL panel 1 is formed of a synthetic resin material, and the organic EL panel 1 is disposed on the upper surface side of the case body 11. 11A is provided for supporting, and a frame-shaped peripheral wall portion 11B is integrally provided from the case body 11 around the placement portion 11A, and an elastic member is provided at the bottom of the case body 11. A pawl 11D is provided.

  A plurality of lead terminals 12 for electrical connection with the plurality of electrode portions 9 of the organic EL panel 1 are fitted into the case body 11 and fixed to the mounting portion 11A of the case body 11.

  In addition, the lead terminal 12 is bent at the upper end side so as to be in contact with the electrode group 9 group of the organic EL panel 1 and a cylindrical shape on the lower end side of the lead terminal 12. 12C, and the contact piece 12A of each lead terminal 12 and the electrode group 9 group of the organic EL panel 1 are electrically connected by, for example, soldering or using a conductive adhesive. To connect to.

  Further, at least a printed wiring board 13 incorporating a circuit for driving the organic EL panel 1 is electrically connected to the female terminal portion 12C of each lead terminal 12 attached and fixed to the case body 11. The pin terminal portion 15 is provided and electrically routed and wired through the land portion 13B. The printed wiring board 13 is provided with a locking opening 13D corresponding to the elastic locking claw 11D provided in the case body 11.

  In the organic EL display according to the second embodiment having the above-described configuration, the organic EL panel 1 set and fixed to the case body 11 is connected to the lead terminal along the pin terminal portion 15 provided on the printed wiring board 13. 12 female terminal portions 12C are fitted together and electrically connected. At this time, the elastic locking claws 11D provided on the case body 11 are used for locking the printed wiring board 13. By engaging with the opening 13D, the case body 11 and the printed wiring board 13 are retained.

  Accordingly, in addition to the effects of the first embodiment described above, the organic EL display device according to the second embodiment can be easily attached and detached as a mounting structure on the printed wiring board 13 side. There is an effect that the assembling and exchanging work can be easily performed.

  In addition, this invention is not limited to the said Example, A various deformation | transformation implementation is possible within the range of the summary of this invention. For example, in the embodiment, the shape of the lead terminal 12 provided integrally with the case body 11 for setting the organic EL panel 1 and electrically connected to each electrode group 9 group of the organic EL panel 1 is the upper end. Although the contact piece 11A is formed by simply bending the side into an inverted L shape, the case body 11 due to a change in the external atmosphere, for example, a change in temperature, is formed by forming the contact piece 11A partially. It is also possible to absorb distortion caused by the difference between the expansion coefficient of the lead terminal 12 and the expansion coefficient of the lead terminal 12. Further, the shape, width setting, length setting, etc. of the lead terminal 12 provided integrally with the case body 11 and electrically connected to each electrode portion 9 of the organic EL panel 1 can be changed as appropriate. Further, the peripheral wall portion is provided corresponding to only the depth of the mounting portion 11A of the case body 11 and the location of the peripheral wall portion 11B, for example, the four corners of the organic EL panel, and the thickness dimension of the case body 11 is appropriately set. It is good.

  In the above-described embodiments, the organic EL display device including the segment type organic EL panel has been described as an example. However, the present invention can be implemented even with an organic EL display device including a matrix type organic EL panel. In addition, the emission color of the organic EL can also be set as appropriate.

It is a disassembled perspective view which shows the organic electroluminescent panel in the Example of this invention. FIG. 2 is a partial cross-sectional view showing a main part of the organic EL panel shown in FIG. FIG. 3 is a front view of the organic EL display showing the mounting structure of the organic EL panel of FIGS. 1 and 2. FIG. 4 is an exploded perspective view of an essential part of the organic EL display of the first embodiment showing the mounting structure of the organic EL panel of FIGS. 1 and 2. FIG. 5 is a cross-sectional view of the main part showing the assembled state of FIG. FIG. 6 is an exploded perspective view of an organic EL display showing a second embodiment of the present invention. FIG. 7 is a cross-sectional view of the main part showing the assembled state of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Organic EL panel 2 Glass substrate 9 Electrode part 11 Case body 11A Mounting part 11B Peripheral wall part 11C Positioning protrusion 11D Elastic latching claw 12 Lead terminal 12A Contact piece 12B Connection terminal part 12C Female terminal part 13 Printed wiring board 13A Insertion hole 13B Land part 13C Positioning hole 13D Locking hole 14 Positioning part 15 Pin terminal part

Claims (4)

  An organic EL panel having a plurality of electrode portions, a case body provided with a mounting portion for disposing the organic EL panel, and the case body are provided integrally with each electrode portion of the organic EL panel. An organic EL display comprising: a lead terminal for connection.   2. The organic material according to claim 1, wherein a printed wiring board is provided behind the case body, and a land portion of the printed wiring board and a connection terminal portion of the lead terminal are electrically routed to form. EL display.   The organic EL display according to claim 2, wherein a positioning portion for determining an assembly position is provided on each of the case body and the printed wiring board.   The organic EL display according to any one of claims 1 to 3, wherein the case body is formed of a synthetic resin material.

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