Micro-printed display

US10153257B2 · kind B2 · utility

Assignee

• X-Celeprint Limited · IE

Inventors

• Ronald S. Cok · Rochester, US
• Christopher Bower · Raleigh, US
• Matthew Meitl · Durham, US
• Carl Prevatte · Raleigh, US
• Salvatore Bonafede · Chapel Hill, US
• Robert R. Rotzoll · Woodland Park, US

Key dates

• Filing date: Mar 10, 2017
• Grant date: Dec 11, 2018
• Expiry date: Mar 10, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2224/82001
• WIPO field: Semiconductors
• WIPO sector: Electrical engineering

Abstract

A micro-printed display includes a display substrate. An array of row conductors, an array of column conductors, and a plurality of micro-pixels are disposed on the display substrate. Each micro-pixel is uniquely connected to a row and a column conductor and comprises a pixel substrate separate from the display substrate and the pixel substrate of any other micro-pixel. Pixel conductors are patterned on each pixel substrate and one or more LEDs are disposed on or over the pixel substrate. Each LED is electrically connected to one or more of the pixel conductors and has an LED substrate separate from any other LED substrate, the display substrate, and any pixel substrate. A pixel controller disposed on the pixel substrate can control the LEDs. The micro-pixel can be electrically connected to the display substrate with connection posts. Redundant or replacement LEDs or micro-pixels can be provided on the pixel or display substrate.