JPH06160123A - Display panel with el - Google Patents

Abstract

PURPOSE:To facilitate connection by arranging the electric terminals of an electroluminescence (EL) at the fixing positions of the display panel to fixing members, and pinching a connecting/conducting members to the driving circuit between the electric terminal members and the fixing members. CONSTITUTION:The panel 1 with an EL 3 is fitted on a main body 14 while screws 13 are fitted to the instrument main body 14 from the through holes 12 of the panel 1. A board 15 provided with the driving circuit of the EL 3 and the main body 14 is arranged at the bottom section of the main body 14 and stored and fixed in a case 16. The other end of a conducting members 17 connected to the board 15 at one end and made of a conducting metal member are located between the terminals 5a, 6a of the EL 3 to electrically connect the driving circuit to the terminals 5a, 6a, the panel 1 with the EL 3 is fitted to the main body 14 with the screws 13, the conducting members 17 are pinched and fixed between the terminals 5a, 6a and the main body 14, and the panel 1 is mechanically fixed and electrically driven at the same time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an EL-equipped display plate provided with an EL (electroluminescence) on the back surface of the display plate for illuminating a display plate on which a display index is printed and formed on the surface of a transparent substrate. In particular, it relates to its electrical connection structure.

[0002]

2. Description of the Related Art As an EL-equipped display panel, an independently manufactured EL is attached to the back surface of the display panel with an adhesive member (Japanese Patent Laid-Open No. 190085/1990, Sho 62-405).
No. 18, Japanese Utility Model Publication No. 62-124510), and one in which the EL is directly formed on the back surface of the display plate by means of printing or the like (patent application filed by the applicant of the present application on October 9, 1992). .

[0003]

Such an EL-equipped display plate can be used as an EL-equipped dial plate 1 used in a vehicle instrument as shown in FIG. 4, which has an EL3 provided on the back face of the dial plate 2. A part of the bus bar 5 and the rear surface electrode 6 on the translucent front electrode 4 of the EL 3 are formed as terminals 5a and 6a so as to extend to the peripheral portion of the dial 2, and these terminals 5a and 6a are used as power feeding portions. A drive circuit (not shown) for causing EL3 to emit light and a wiring member (shown in the figure) using leads 7 and 8 connected to 5a and 6a with an adhesive member (not shown) such as a conductive paste or an adhesive tape as a power feeding portion. Not) was electrically connected through. In the figure, 9 is a light emitting layer located between the electrodes 4 and 6, and 10 is a protective layer located at the rearmost part of the EL 3.

Therefore, it is necessary to connect the EL3 and the wiring member, which is troublesome in manufacturing. Further, when the leads 7 and 8 are used as the power feeding section, the leads 7 and 8 are used for the dial 2
Since it protruded from the peripheral edge of the, it was sometimes damaged such as bending. In addition, leads 7, 8 and leads 7, 8
The number of parts such as the adhesive member when connecting
Moreover, since the fixing of the leads 7 and 8 is troublesome, it takes a lot of time and effort in manufacturing, and it is difficult to connect the leads 7 and 8 to the wiring member because they are thin film materials such as silver foil.

[0005]

SUMMARY OF THE INVENTION The present invention focuses on the problems of the prior art, and an EL-equipped display plate in which an EL is provided on the back surface of the display plate and the display plate is attached to a fixed member by a mounting member. In, in the mounting member, the EL power feeding portion is disposed at a mounting portion of the display plate mounted on the fixing member,
A wiring member for electrically connecting the power supply unit and the drive circuit is sandwiched and fixed between the power supply unit and the fixing member, and the power supply unit is a part of the electrode of the EL. Alternatively, the terminal is integrally formed with the bus bar formed on the electrode.

[0006]

When the display plate is mounted on the fixing member by the mounting member by forming the EL power feeding portion at the mounting position of the display plate,
At the same time, the wiring member connected to the drive circuit can be fixed to the power supply unit together. Further, by forming the power supply unit as the electrode of the EL or the terminal integrally formed with the bus bar formed on the electrode, the manufacturing of the EL dial plate can be simplified.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS. 1 to 3, but the same or corresponding portions in the conventional example will be designated by the same reference numerals and detailed description thereof will be omitted.

FIGS. 1 and 2 explain the construction of the EL-attached dial plate 1. The EL-attached dial plate 1 is made up of a dial plate 2 and EL3, and the dial plate 2 made of a transparent substrate is A display index 11 is formed on the surface by printing, and a through hole 12 serving as an attachment point for attaching to a fixing member described later by using a mounting member described later is provided, and on the surface thereof, a transparent front electrode 4, The light emitting layer 9, the rear electrode 6 and the protective layer 10 are sequentially laminated by printing to form EL3. Then, a bus bar 5 is printed and formed on the inner peripheral portion of the front electrode 4 so as not to overlap the display index 11, and the bus bar 5 and the rear electrode 6 are formed.
Is formed integrally with the through hole 12 of the dial 2 to form terminals 5a and 6a which are power feeding portions. The protective layer 10 is formed on the back surface of the dial 2 excluding the terminals 5a and 6a by EL3.
Is printed to protect the environment from the surrounding atmosphere.
The protective layer 10 is omitted in FIG.

Next, the assembly configuration diagram of FIG. 3 will be described. By attaching the screw 13 which is a mounting member to the instrument main body 14 which is a fixing member from the through hole 12 of the dial 2,
The EL-attached dial 1 is mounted on the main body 14. And the body
A board 15 provided with a drive circuit (not shown) for the EL 3 and the main body 14 is arranged at the bottom of 14 and is housed and fixed in a case 16.

By the way, the terminals 5a and 6a of the EL3 and the main body
The other end of the wiring member 17 made of a conductive metal member, one end of which is connected to the substrate 15 for electrically connecting the terminals 5a and 6a to the drive circuit, is located between the terminal 14 and The wiring member 17 is fixed between the terminals 5a and 6a and the main body 14 at the same time when the EL dial 1 is attached to the main body 14 with the screw 13, and the EL mechanical dial 1 is electrically fixed and electrically connected. It will be fixed at the same time.

The substrate 15 is electrically connected to an external circuit (not shown) such as a battery or a signal source of the main body 14 by a wiring member (not shown) such as a cord.

Further, the present invention is not limited to the above-mentioned embodiment, but can be variously modified within the scope of the gist thereof. For example, in addition to the above-described embodiment in which the EL 3 is integrally formed on the back surface of the dial 2, the EL-attached dial 1 may be one in which the dial 2 and the EL 3 are independently manufactured and attached by an adhesive member. In addition to the above-described embodiment in which the terminals 5a and 6a are directly used, the power feeding portion may be used by connecting the leads 7 and 8 (see FIG. 4) to the terminals 5a and 6a. 7,8
Since it is not necessary to connect the power supply unit, it is possible to simplify the configuration of the power feeding unit and simplify the manufacturing of the EL-attached dial 1.

The present invention also relates to the EL shown in the above embodiment.
It goes without saying that it can be applied not only as the attached dial plate 1 but also as an EL attached display plate for performing various displays.

[0014]

The present invention provides an EL-equipped display plate in which an EL is provided on the back surface of a display plate and the display plate is mounted on a fixed member by a mounting member, wherein the mounting member mounts the fixed member on the fixed member. By disposing the EL power supply unit at the mounting position of the display plate, and sandwiching and fixing the wiring member for electrically connecting the power supply unit and the drive circuit between the power supply unit and the fixing member, When the display plate is attached to the fixed member with the mounting member,
At the same time, the wiring member connected to the drive circuit can be fixed to the power supply unit together, which simplifies the connection between the EL and the wiring member.

Further, since the power feeding unit is a terminal integrally formed with a part of the electrode of the EL or the bus bar formed on the electrode, the structure of the power feeding unit can be simplified and the number of parts can be reduced. Therefore, the manufacturing of the EL-attached display panel can be simplified.

[Brief description of drawings]

FIG. 1 is an exploded perspective view in which a part of an embodiment of the present invention is cut away.

FIG. 2 is a rear view of the above embodiment except for a protective layer.

FIG. 3 is an assembly configuration diagram of the embodiment.

FIG. 4 is a rear view of a conventional example.

[Explanation of symbols]

 1 EL dial plate (EL display plate) 2 Dial plate (display plate) 3 EL 4 Front electrode 5 Bus bar 6 Rear electrode 11 Display index 12 Through hole (mounting point) 13 Screw (mounting member) 14 Main body (fixing member) 17 Wiring member 5a terminal (power supply part) 6a terminal (power supply part)

Claims (2)

[Claims] 1. An EL-equipped display plate in which an EL is provided on the back surface of a display plate and the display plate is attached to a fixed member by a mounting member, wherein the display plate is attached to the fixed member by the mounting member. An EL power supply part is provided at a location, and a wiring member for electrically connecting the power supply part and the drive circuit is sandwiched and fixed between the power supply part and the fixing member. Display board. 2. The display panel with EL according to claim 1, wherein the power supply unit is a terminal integrally formed with a part of the electrode of the EL or a bus bar formed on the electrode. .