Epson EB-1985WU User Manual download pdf (Page 7)

SEE VIBRANT, REALISTIC COLOURS

WITH HIGH COLOUR BRIGHTNESS.

www.3lcd.com

www.epson.com.sg/colourbrightness

EPSON 3LCD TECHNOLOGY – FOR BRIGHT, FAITHFUL COLOURS

3LCD projectors offer brighter and more accurate colours as they produce

different shades and hues by ﬁ ltering, then mixing beams of the three primary

colours (red, green and blue).

In a 3LCD projector, white light is ﬁ rst split into the three beams of primary

colours. Each beam is then ﬁ ltered through its own LCD that will give each

individual pixel of the image its exact brightness for each colour. The colour

beams are then perfectly recombined in a prism before being projected out as a

complete image.

What is Colour Brightness?

As the term implies, Colour Brightness is a new international standard that

states a projector’s colour light output in lumens. It measures the brightness of a

projector’s red, green and blue light.

These are the measurements to look for:

Colour Brightness - Colour Light Output

White Brightness - White Light Output

How to Find a Projector’s Colour Brightness?

1. Look for separate Colour Brightness and white brightness speciﬁ cation.

2. Projectors with similar white brightness levels can have vastly different and

signiﬁ cantly lower Colour Brightness levels.

3. Many manufacturers may not want you to know their projectors are only 1/3

as bright when measuring colour.

• An independent test by projector review media ProjectorCentral.com in 2009 of about 800 projectors found that on average,

3LCD projectors use 25% less power than single-chip projectors.

* Compared against similarly-priced leading 1-chip DLP

business and education projectors based on NPD data from July 2011 through

June 2012 (available from www.npd.com). Colour brightness (colour light output) measured in accordance with IDMS 15.4. Actual colour

brightness will vary depending on actual usage conditions. 3LCD

is a registered trademark of Seiko Epson Corporation. DLP

is a

registered trademark of Texas Instruments, Inc. and its use here does not imply any afﬁ liation with or endorsement by them.

3LCD projector : RGB are projected at the same time, which makes the single composite image easy on the eyes.

This compares to projectors using single-chip technology that actually project

individual colours sequentially by ﬁ ltering their single white light beam through

a colour wheel, and then relying on human colour perception to combine the

colours in the viewers’ minds.

As a result, 3LCD projectors also offer greater detail, smoother gradations, no

“colour breakup” effect, are easier on viewers’ eyes, and consume about 25%

less power to achieve the same brightness compared to a single-chip projector

using a lamp of the same wattage.

Epson

Colour Brightness 2600 Lumens

White Brightness 2600 Lumens

Epson

Competitor

Colour Brightness 750 Lumens

White Brightness 2700 Lumens

Competitor

White

2700 Lumens

Colour

2700 Lumens

Colour

740 Lumens

White

2700 Lumens

Epson

Other 1-Chip Projectors

A New Speciﬁ cation

Projectors have always had their brightness rated only for white light. However,

they may have very different colour brightness levels. The Colour Brightness

speciﬁ cation provides a new way for buyers to compare the holistic performance

(white and colour light brightness) of projectors to make a more informed

decision.

Why Does Colour Brightness Matter?

Even if a projector has high white brightness, it’s Colour Brightness could be as

low as 1/3 of its white light brightness speciﬁ cation. With a projector that has high

Colour Brightness, you’ll see vibrant, realistic colours; but if Colour Brightness

is low, colours can look dull and dark, skin tones can be reproduced poorly and

important details can be lost.

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Epson EB-1985WU User Manual Page 7

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