"Although it's not a crystal ball, these models are a useful tool for developing scenarios, " Cheung said.

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In TVs smaller than 40 inches, liquid crystal display (LCD) models are more efficient than CRT models.

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Sony said it is beefing up its TV lineup, including models with 4K liquid crystal displays, which deliver even better image quality than current LCD TVs.

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Most models have small liquid-crystal display screens built in, so you can see your shots immediately and discard the ones in which Aunt Zoey has her eyes closed.

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Some of the highlights included the largest PDP (plasma display panel) screen yet, new models of LCD (liquid crystal display) monitors from many companies, and demonstrations of a new and very promising flat panel display technology that can make screens even thinner than they are today.

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