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Which is the best projector

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noun explanation

CRT Three Shot Projector

The device that decomposes the input signal source into three screens of red, green and blue CRT tubes. The phosphor is enlarged and condensed by the light emitting system under high pressure, and the color image is displayed on the large screen.

LCD projector

A device that uses the photoelectric effect of a liquid crystal to affect the light transmittance or reflectance of its liquid crystal cell projector, thereby affecting its optical properties, and producing images with different gray levels and colors.

DLP projector

A device that passes a light beam through a high-speed three-color lens and is projected on the processed DMD, and then projects through an optical lens onto a large screen to complete image projection.

Light output

Refers to the light energy output by the projector in units of "lumens" (lm).

Horizontal scanning frequency

The movement of the child from left to right on the screen is called horizontal scanning, also called line scanning.

Vertical scan frequency

The electron beam moves from top to bottom while scanning horizontally. This process is called vertical scanning.

Addressable resolution

It refers to the highest pixel that the projection tube can distinguish. It is mainly determined by the focusing performance of the projection tube. It is an important parameter of the quality index of the projection tube.

RGB resolution

Refers to the highest pixel that the projector can reach when connected to an RGB resolution video signal.

Video resolution

Refers to the highest resolution of the projector when displaying composite video.

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