What should be paid attentio¶↑₩₹n to when purchasing a pr¶εojector?
1. Be clear about≠☆♠₹ the nature of the source to be displ≥ayed < br / >
According to the nature of ≥δ©✘the source, the projector can ₩be divided into two categoΩ₹ries: ordinary video playe ₹λ§r and digital player. •When only the whole TV signal α& is displayed, such as video ≈✔tape playing in karaoke hall, you canπ÷÷ choose a normal video player; to disp"♠✘lay the signal output by VGA card, yo→∞→₩u can choose a digital player; aδ™γnd all models of NEC have b¥↓oth video and digital ports.
2. Confirm the installation method < br / >
The installation mode o¶σ ♥f projector is divided into tab≤♣☆le front projection, ceiling front p©©₩rojection, table rear projσ↕'ection and ceiling rear projecti←γδ§on. The front projection is ®<the projector and the audience on onβ★e side; the rear projec"↑↓♣tion is the projector ↕α★≠and the audience on both ends of®> the screen respectively. If it ♥β∞☆is used temporarily, the table ×σtype ceiling can be sel₽♠ected. If the space is☆ ☆ large, there is overall arrangem&•ent in civil engineering, and the β¶★φback projection method is¶ ' the best overall effect. I♦¥ f the space is small, t•σλ★he back projection refraction←¥∑× method can be selected.
3. According to the display →↓ δenvironment, such as room size and l↓ $ighting < br / >
If the room area is ≥®small, LCD projector is optional. When↔≈φ the display area is large"₽, there is no sunlight, and t"πδhe light is dark, you can choose a > ≤low brightness projector of aγ♦≤bout 800-1200ansi. When the require™ ≠'ments for ambient light are not ↔♠≤high, the display area is large, an$↕d the high-resolution graphic s£δ≈ignal is displayed, LCD "projector can be selected.
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