JPS59150455A - Integrated circuit element - Google Patents

Abstract

PURPOSE:To perform good electrical connection between an IC and an LCD without using an independent part such as a conductive connector by providing a plurality of detachable ohmic connecting means whereto outer leads of the other functional elements are to be inserted. CONSTITUTION:The frame body 2 of the watch module of an electronic wrist watch whose display is the LCD is provided with the IC3 which drives the LCD1, a battery 4, a crystal oscillator 5, etc. The outer leads 3a-3c are buried in the frame body 2 at a part and used as the conductors electrically connected to an electronic component. The part of electric connection to the external electrode 1a of the LCD1 has the form of U-shape or bird beak and performs the electrical connection in mechanic contact with the external electrodes 1a of the LCD1 by utilizing the elasticity of the outer leads 3a and 3b. Unnecessitating a single body connector such as a zebra connector and also mechanical pressure, various kind of states such as the horizontal arrangement of the IC3 and the LCD1 can be adopted.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an integrated circuit device that is useful for electronic wristwatches, calculators, and the like.

Conventionally, electronic devices with small mounting dimensions such as electronic watches and calculators often use ICs (integrated circuit elements), and when using LCDs as their displays, their electrical connections are
This is generally done by mechanical pressing force through an elastic conductive connector such as a zebra connector.

This is because LCDs, unlike LEDs, have a problem in terms of lifespan, so when applied to this type of electronic device, L
Ic by adhesion such as soldering method such as E I)
This is to avoid ohmic adhesion to the external leads of the LCD, to connect them electrically by mechanical pressure (pressure force), and to maintain a state in which the LCD can be replaced with a new one after its life.

However, in this type of electronic device, it is necessary to apply a certain load (mechanical pressing force) to an elastic conductive connector such as a zebra connector in order to make good ohmic contact between the external leads of the IC and the LCD. Because there is
An elastic conductive connector such as a zebra connector is placed on the external lead of the IC, and an LCD is stacked on top of this to create a superimposed structure that applies mechanical pressure between the external lead of the IC and the LCI). There is a certain reluctance to make it happen. For this reason, the mounting dimensions after assembly are limited, and the use of elastic conductive connectors such as zebra connectors
Because of the structure in which the LCD and the LCD are electrically connected, the number of parts is large, and there are problems with ohmic contact and contact resistance in the electrical connection. These problems are severe constraints on electronic devices such as electronic wristwatches and calculators, which aim to reduce costs by minimizing packaging dimensions, minimizing the number of parts, and facilitating assembly.

Therefore, an object of the present invention is to eliminate the electrical connection between IC and LCI without using independent parts such as elastic conductive connectors such as zebra connectors, and to reduce the number of parts. , and 7. It is an object of the present invention to provide an electronic device that allows good electrical connection, is low cost, and has the smallest possible packaging size.

Hereinafter, the present invention will be specifically explained in detail using an electronic wristwatch having an LCD' as a display body, which is a preferred embodiment of the present invention.

FIG. 1 is a plan view showing a timepiece module, which is the heart of an electronic wristwatch to which the present invention is applied, and FIG. 2 is an AA diagram of FIG. 1.
FIG. In the figure, reference numeral 1 denotes an LCD as a light display, which is electrically connected to electronic components for driving the LCDI through its external electrode 1a. , 2 is a frame made of organic resin or the like, and L'C
IC3 and battery 4 as electronic components that drive the DI. Crystal oscillator 5,) II Macacitor 6. chip capacitor 7
A temperature compensation capacitor i and the like are housed in a groove provided in the frame 2, and are electrically connected to each other by external leads 3a to 3c of the IC 3.

The external leads 33 to 3c in the IC 3 are partially embedded in the frame 2 and are used as conductors to be electrically connected to other electronic components 4 to 9 (9 is a lamp).
The part 1t:'r, which is electrically connected to the external electrode 1a in L CT) 1, has a U-shape (or bird's beak shape), and utilizes the elasticity of the external leads 3a and 3b to Electrical connection is made through mechanical contact with the electrode 1a.

-F- As mentioned above, the present invention is applied to [7I, one-clock moseal]
External lead 3a in I C3 for electrical connection with C3
and 3b form a U-shape (or a bird's beak shape)
A connector is formed, and the external electrode 1a of the LCDI is inserted into this connector.

Therefore, LCD1 and IC3 that drives it, etc.
Electrical connection with electronic components does not require a single connector such as a zebra connector, nor does it require mechanical pressing force, and the arrangement structure of the electronic components and LCDI adopts a conventional overlapping structure. There is no need for it, and it is possible to arrange it horizontally with IC3 and LCDI.

Connectors 3a and 3b used for electrical connection between the LCDI according to the present invention and electronic components such as IC3 that drive it
In the above-mentioned embodiment, the external leads 3a and 3b of the IC 3 are used.The present invention is not limited to this, but various shapes and shapes can be used, as shown in other embodiments in FIGS. 3121 to 4. It is not possible to use the same material.

The present invention is characterized by an electrical connection method between a display such as an LCD and electronic components that drive it, and the effects thereof will be summarized below.

10. A connector into which the external electrode of the light display is inserted is provided on the external lead of the electronic component that drives the display. Therefore, there is no need for a single connector such as a zebra connector as in the past. Furthermore, there is no need to apply a mechanical pressing force to make the electrical connection by using a single connector or the like.

Therefore, the present invention can provide a compact and highly reliable electronic device because the number of parts is small and good ohmic contact can be made.

2. The arrangement relationship between the display body and the electronic components that drive it can be freely arranged.

3. Since the electrical connection between the external electrode of the display body and the electronic components that drive it is made directly without using other connectors, ohmic contact is perfect and there are no defects or accidents.

The 4° display body can be easily attached and detached.

5, LCD5 ECI) (Electrochro
An electronic wristwatch with a display such as a mic display! The present invention can be applied to various types of electronic devices such as desks.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a timepiece module in an electronic wristwatch that is an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view taken along the line AA in FIG. 1, and FIG. 3 is another embodiment of the present invention. A plan view showing a time opening module in an example electronic wristwatch,
FIG. 4 is a longitudinal sectional view taken along the line AA in FIG. 3. ]...L CD, 1a...I, external electrode of CI), 2...frame body, 3...IC13a-30...[C
external lead, 4... battery, 5... crystal oscillator, 6. 7. 8... Capacitor, 9... Lamp. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. An integrated circuit element comprising a plurality of removable ohmic connection means into which external leads of other functional elements are inserted.