LED array architecture for high resolution printbars
US6825866B2 · kind B2 · utility
0Cited by
4References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 10, 2002 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Nov 14, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/45
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for forming a high resolution LED array. A plurality of LED chips are provided to form the LED array. Each LED chip has an electrode that is inward biased at each end of the chip by a predetermined amount. The size of each LED chip is removed by reducing, at each end of each chip, an amount of chip material substantially equal to the predetermined amount. The array is formed by placing each chip end to end with a gap between each chip, wherein the gap is suitably large for placement accuracies and a consistent pitch of 21.2 &mgr;m is maintained between each LED on each chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.