A microdisplay is a miniature display panel, typically under an inch diagonal, with very high pixel density, used in near-eye optical systems such as headsets, viewfinders and projectors. Built on technologies including micro-OLED, liquid-crystal-on-silicon (LCoS) and microLED, it produces a small bright image that magnifying or waveguide optics expand into a large virtual image for the eye. Microdisplays are a critical enabling component for augmented and virtual reality head-mounted displays, where size, brightness, resolution and power efficiency are paramount.
- A microdisplay is a miniature, high-pixel-density panel and a key form of Display Hardware used in near-eye optics.
- It is the image source inside a Head-Mounted Display, magnified by lenses or waveguides into a large virtual image.
- As a building block of Display Technology, it directly enables Augmented Reality and Virtual Reality experiences.
Overview
- Microdisplays compress a full image into a chip a centimetre or two across, demanding pixel pitches measured in micrometres. The tiny emitting or modulating surface is paired with optics that expand the apparent field of view.
- Competing substrate families trade off brightness, contrast and efficiency: micro-OLED offers excellent contrast, LCoS suits high-resolution projection, and microLED promises the brightness needed to compete with daylight in see-through AR.
- Because headsets must be light, cool and long-lasting, advances in microdisplay efficiency and brightness are pacing items for the broader Spatial Computing roadmap.
Key aspects
- Sub-inch panels with extreme pixel density and small pixel pitch.
- Substrate families: micro-OLED, LCoS and emerging microLED.
- Pairing with magnifying or waveguide optics to form a virtual image.
- Brightness and efficiency budgets dominating headset design.
- Eye-box, field-of-view and resolution trade-offs at the system level.
Applications
- Augmented and virtual reality head-mounted displays.
- Electronic viewfinders in cameras.
- Pico-projectors and heads-up displays.