Mikä on VR-näyttö?

A VR display is the screen system inside a virtual reality headset: one or two small, high-density panels positioned a few centimeters from your eyes, viewed through magnifying lenses so that they fill your field of view and replace the real world entirely. That last part is what separates it from an AR display. An AR display is see-through and adds graphics to the room; a VR display is opaque and builds the whole scene. Mixed reality headsets like the Meta Quest 3 or Apple Vision Pro are still VR displays optically; they simply show you the room again through cameras (video passthrough).

Having spent time on the bench with head-mounted optics, I can say the VR display is the most demanding panel application in consumer electronics. A phone screen is viewed at 30 cm and covers perhaps 15° of your vision. A VR panel is viewed through a lens that spreads it across 100° or more, so every flaw a normal display can hide becomes a wall in front of your face.

The two halves of a VR display

1. The panel

Every commercial VR headset today uses one of three panel types:

• Fast-LCD (usually with mini-LED or local-dimming backlights): the mass-market choice. Meta's Quest 3 uses dual LCDs at 2064×2208 per eye, 72 to 120 Hz, delivering about 25 pixels per degree at a 110° FOV. LCD wins on cost, brightness and established manufacturing, and reaches around 2,100 PPI, but its native contrast is low, so blacks look gray in dark scenes.
• Micro-OLED (OLED on silicon): the premium choice. Apple Vision Pro uses two micro-OLED panels with a 7.5-micron pixel pitch totalling 23 million pixels, 92% DCI-P3 and 90 to 120 Hz refresh. Samsung's Galaxy XR pushes further: 3,552×3,840 per eye, 29 million pixels, 6.3-micron pitch at $1,800. Micro-OLED gives perfect blacks and 3,000+ PPI density, but the silicon backplane limits panel size, which in turn limits FOV, and efficiency remains a challenge.
• MicroLED: the future choice. Offers the brightness of LCD with the contrast of OLED, but manufacturing yields at VR resolutions are still improving and no mainstream VR headset ships with it yet.

2. The lens

The panel is useless without optics that let your eye focus on something a few centimeters away. Two designs matter:

• Fresnel lenses (Quest 2, Valve Index era): thin and cheap, but the concentric ridges scatter light, producing "god rays" around bright objects and soft edges.
• Pancake lenses (Quest 3, Vision Pro, Galaxy XR, and virtually every 2024 onward headset): fold the optical path using polarization, cutting headset depth roughly in half. The cost is brutal light loss. According to a 2024 review in Cell Reports Physical Science, pancake system efficiency is limited to 25% for a polarized light engine and 12.5% for an unpolarized microdisplay. The panel has to be 4 to 8 times brighter than the image you actually see.

The specifications that define a VR display

Pixels per degree (PPD), not resolution. Because the panel is spread across your visual field, what matters is how many pixels land on each degree of vision. Human visual acuity is about one arcminute, which works out to 60 PPD, and reaching that across a 100° FOV would take roughly 6,000 horizontal pixels per eye. Nobody is there yet. Quest 3 sits at about 25 PPD; Vision Pro at approximately 34 PPD. Below roughly 20 PPD you see the "screen-door effect," the visible black grid between pixels that plagued early headsets.

Field of view. Human binocular vision spans about 200° horizontally; commercial headsets typically deliver around 106° to 110°. Galaxy XR specifies 109° horizontal by 100° vertical. Wider FOV needs bigger panels or more aggressive (and more aberrated) lenses, and it dilutes PPD unless the resolution rises with it.

Refresh rate and persistence. Because your head is always moving, a sample-and-hold VR display smears the entire world when you turn. Every VR headset therefore runs its panel in a low-persistence mode, illuminating each frame for only 10 to 20% of the frame time, the same physics as the ULMB strobing on gaming monitors. The trade-off follows directly: delivering 300 nits to the eye through a 12% efficient pancake lens at 10% persistence requires a light engine producing approximately 25,000 nits. This is why VR panel brightness specs look absurd compared with a monitor. Refresh rates of 90 Hz are the practical floor for comfort; 120 Hz is now standard on Quest 3 and Vision Pro.

Motion-to-photon latency. The delay between moving your head and the display updating. Above roughly 20 ms most people notice lag and a share of them feel sick. Low persistence, high refresh and fast pixel response all serve this single number.

Micro-OLED vs LCD: the practical choice in 2026

From a product-planning perspective the two paths have settled. Fast-LCD with pancake optics is the volume play: Quest 3 class headsets at $500 that are bright enough and sharp enough for gaming and fitness. Micro-OLED with pancake optics is the premium play: Vision Pro and Galaxy XR at $1,800 to $3,500 where contrast and text clarity for productivity justify the cost. The gap in the middle is where the next two years of competition will happen, and the technology that closes it is likely a higher-density micro-OLED at lower cost rather than a better LCD, because the Samsung Display micro-OLED line built for Galaxy XR is the first high-volume OLED-on-silicon capacity outside Sony.

Market direction

IDC forecasts mixed reality headsets growing from 3.2 million units in 2026 to 10.4 million in 2030, a 34.4% CAGR, with revenue rising from $2.4 billion to $7.1 billion. That is healthy but slower than the 41.9% CAGR IDC gives optical see-through AR glasses, and it reflects a real constraint: a VR display is still a bulky, power-hungry system, and the review literature is explicit that consumers ultimately want something that shapes and weighs about the same as a pair of glasses. Until pancake efficiency improves, through double-path designs (around 50%) or the theoretical Faraday-rotator lenses, the panel will keep doing the heavy lifting.

Bottom line

A VR display is a very high-density panel (LCD or micro-OLED) paired with a pancake or Fresnel lens, run at 90 to 120 Hz in a low-persistence mode, and judged by pixels per degree, field of view and latency rather than raw resolution. LCD gives you affordable, bright headsets at about 25 PPD; micro-OLED gives you perfect blacks and 34 PPD or more at a premium. The 60 PPD retinal target with a wide FOV remains the industry's open problem, and the bottleneck is as much the lens as the panel.