PRODUCTION OF DOT MATRIX TYPE LED DISPLAY DEVICE

PRODUCTION OF DOT MATRIX TYPE LED DISPLAY DEVICE

PURPOSE:To obtain the process for production of the dot matrix type LED display device which does not require a lamp house. CONSTITUTION:This process for production consists of a 1st stage for die bonding LED chips 4 to a lower substrate 1 disposed with common electrodes 3, a 2nd stage for fixing an...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: URABE HIDEKI, TSUBOI TOSHIHIKO
Format: Patent
Sprache:eng
Schlagworte:
ADVERTISING
CRYPTOGRAPHY
DISPLAY
DISPLAYING
EDUCATION
LABELS OR NAME-PLATES
PHYSICS
SEALS
SIGNS
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Beschreibung
Zusammenfassung:PURPOSE:To obtain the process for production of the dot matrix type LED display device which does not require a lamp house. CONSTITUTION:This process for production consists of a 1st stage for die bonding LED chips 4 to a lower substrate 1 disposed with common electrodes 3, a 2nd stage for fixing an upper substrate 2 disposed with segment electrodes 6 and bored with holes 5 for lamp houses in alignment to the LED chips 4 to the lower substrate 1 by an insulating adhesive, a 3rd stage for wire bonding the LED chips 4 and wiring patterns 61, and a 4th stage for coating the LED chips 4 and wires 8 with a transparent resin only when the protection thereof is needed.