Printed circuit board terminal device

• US 4,680,675 A
• Filed: 04/22/1985
• Issued: 07/14/1987
• Est. Priority Date: 04/25/1984
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sato, Hideo
• Primary Examiner(s): Grimley, Arthur T.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US06/725,814
• Time in Patent Office: 813 Days
• Field of Search: 174/68.5, 174/88 R, 174/117 PC, 361/397-398, 361/400, 361/403, 361/404, 361/406, 361/408-409, 361/426, 361/421, 339/17 E, 339/17 R
• US Class Current: 361/748
• CPC Class Codes: H01R 12/62 connecting to rigid printed circuits or like structures
• CPC Class Codes: H05K 1/118 specially for flexible printed circuits, e.g. using folded portions
• CPC Class Codes: H05K 1/189 characterised by the use of a flexible or folded printed circuit H05K3/326 takes precedence
• CPC Class Codes: H05K 2201/09445 Pads for connections not located at the edge of the PCB, e.g. for flexible circuits
• CPC Class Codes: H05K 2201/10128 Display
• CPC Class Codes: H05K 2201/10136 Liquid Crystal display [LCD]
• CPC Class Codes: H05K 2201/10681 Tape Carrier Package [TCP]; Flexible sheet connector
• CPC Class Codes: H05K 2201/10689 Leaded Integrated Circuit [IC] package, e.g. dual-in-line [DIL]
• CPC Class Codes: H05K 3/361 Assembling flexible printed circuits with other printed circuits

Abstract

A printed circuit terminal device which includes a terminal array having very fine pitch between lead lines from a circuit portion including a flexible printed circuit board having a terminal array pattern which corresponds to the terminal array and wiring pattern and which are arranged to alternately extend from two sides of the terminal array pattern thus changing the pitch of the wiring pattern on the flexible printed circuit board to be twice that of the pitch of the wiring pattern of the terminal array. This allows a circuit to be easily and reliably coupled to the electrical terminals having very fine pitch and the formation of the wiring pattern of a coupling portion with the circuit portion can be easily performed and results in an arrangement of very small size. The flexible printed circuit board can be manufactured at low cost and the yield can be increased. Also, circuit elements such as resistors can be mounted on the wiring pattern without changing the wiring pitch.

Claims

1. A planar printed circuit board of flexible material upon which a first driver and a second driver are mounted and at least one lead terminal section is formed with terminal patterns which extend in a planar line and are closely spaced and have a pitch "p", a first plurality of planar signal output lines formed on one side of said one lead terminal section and extending parallel to each other with pitch of "2p" and connected to a first group of alternate ones of said terminal patterns on said one lead terminal section and connected to said first driver and said first signal output lines and said first group of alternate ones of said terminal patterns lying in a first plane, and a second plurality of planar signal output lines formed on a second side of said one lead terminal section and extending parallel to each other with a pitch of "2p" and connected to a second group of planar alternate ones of said terminal patterns on said one lead terminal section and connected to said second driver and said second signal output lines and said second group of terminal patterns lying in a second plane, wherein a first portion of said printed circuit board upon which said first driver is mounted can be bent so as to lie in a different plane from said lead terminal section, wherein a second portion of said printed circuit board upon which said second drive is mounted can be bent so as to lie in a different plane from said lead terminal section, with a first plurality of resistors mounted on said printed circuit board in series with said first plurality of signal output lines, and a second plurality of resistors mounted on said printed circuit board in series with said second plurality of signal output lines.