Varistor and monitor: what they have in common

1. Step 1. Varistor — is made of — Semiconductor. A varistor is zinc oxide or silicon carbide.
2. Step 2. Semiconductor — is material for — Pixel matrix (OLED). Organic semiconductors.
3. Step 3. Pixel matrix (OLED) — is part of — Display. A pixel matrix forms the image.
4. Step 4. Display — is part of — Monitor. The heart of a monitor is the display: an LCD panel, once a picture tube.

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