Micro-LED display

US11688333B1 · kind B1 · utility

Assignee

• MICROSOFT TECHNOLOGY LICENSING, LLC · US

Inventors

• Charles W. Boecker · Ames, US
• Niranjan Achugundla Puttaswamy · San Jose, US
• Barry Thompson · Menlo Park, US
• Sheethal Somesh Nayak · San Francisco, US
• Jeffrey Neil Margolis · Seattle, US
• Chuan Pu · Middletown, US

Key dates

• Filing date: Dec 30, 2021
• Grant date: Jun 27, 2023
• Expiry date: Dec 30, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G11C11/419
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A display device includes a display substrate and a backplane substrate. The display substrate includes an array of micro-LEDs forming individual pixels. The backplane substrate includes a plurality of pixel logic hardware modules. Each pixel logic hardware module includes a local memory element configured to store a multi-bit pixel intensity value of a corresponding micro-LED for an image frame. The backplane substrate is bonded to a backside of the display substrate such that the pixel logic hardware modules are physically aligned behind the array of micro-LEDs and each pixel logic hardware module is electrically connected to a micro-LED of the corresponding pixel.