Browse Prior Art Database

LED Character Display Package

IP.com Disclosure Number: IPCOM000093348D
Original Publication Date: 1967-Aug-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 42K

Publishing Venue

IBM

Related People

Farrell, HC: AUTHOR [+2]

Abstract

The display package is arranged to support the light emitting diodes LED's, which form the character matrix segments, on a common electrode. The latter is connected to the same conductivity type faces or layers of the LED's. Package 10 is configured as a conventional seven-segment numerical matrix display. In drawing A, package 10 includes seven LED chips 11...17 such as GaP types, for example. Each LED has its P-layer, for example, fixed to common electrode 18 as in drawing B. Electrode 18 is provided with recess 19 in which LED 17 is mounted to form the middle horizontal segment of the numerical matrix for such numerical characters as 2, 3, 4, etc. Each LED has a separate electrode 20 connected to its other conductivity type layer which is the N-layer. Each electrode 18 and 20 is selectively connected by a conductor, e.

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LED Character Display Package

The display package is arranged to support the light emitting diodes LED's, which form the character matrix segments, on a common electrode. The latter is connected to the same conductivity type faces or layers of the LED's. Package 10 is configured as a conventional seven-segment numerical matrix display. In drawing A, package 10 includes seven LED chips 11...17 such as GaP types, for example. Each LED has its P-layer, for example, fixed to common electrode 18 as in drawing B. Electrode 18 is provided with recess 19 in which LED 17 is mounted to form the middle horizontal segment of the numerical matrix for such numerical characters as 2, 3, 4, etc. Each LED has a separate electrode 20 connected to its other conductivity type layer which is the N-layer. Each electrode 18 and 20 is selectively connected by a conductor, e.g., conductor 21, which is associated with electrode 18, to one terminal pin of header assembly 22.

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