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Title:
FLEXIBLE PRINTED WIRING BOARD INTEGRATED WITH DISPLAY ELEMENT
Document Type and Number:
Japanese Patent JPH04211190
Kind Code:
A
Abstract:

PURPOSE: To integrate a flexible printed wring board with a display element without spoiling the flexibility of the wiring board by coupling the wiring board with a flexible display element.

CONSTITUTION: A transparent substrate 3 is provided with a liquid crystal display element section A and printed wiring board section B and copper circuits 4 are formed in the section B as conductor circuits. The circuits 4 are formed by etching copper foil after the copper foil is stuck to the surface of the substrate 3. Then electrode circuits 5 are formed in the liquid crystal display element section A. The circuits 5 are formed through a resist applying, exposing, and developing processes after an ITO film, etc., is formed on the substrate 3 by a sputtering film forming means. A polymer/liquid crystal composite film is formed by application and the electrode circuits constituting facing electrodes are formed by sticking.


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Inventors:
KAJIYAMA CHISATO
KASHIWAGI TORU
HARA KOJI
TAKADA KENSAKU
Application Number:
JP1549591A
Publication Date:
August 03, 1992
Filing Date:
February 06, 1991
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
B41J29/42; G02F1/1333; H05K1/14; H05K1/00; H05K1/02; H05K1/09; (IPC1-7): B41J29/42; G02F1/1333; H05K1/14
Attorney, Agent or Firm:
Hirokatsu Kamei (1 person outside)



 
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