Why the colors vary with similar color gamut diagrams ?

Dramaqueen

Member
At that time, some netizens asked a question of high technical content-why do many projectors seem to have the correct color triangle placement, but the actual perception is very different?

Some people even pointed out that some projectors seem to have cold colors, while others are very warm.
In fact, the test chart of the color triangle is not a problem, and the netizens who raised the problem are also correct. Color triangles are not all

Why the colors vary with similar color gamut diagrams ?


JVC N6 data comparison before and after debugging

There are two pictures above, the left picture is before debugging, and the right picture is after debugging.
Obviously, the six primary colors of the projector measured on the right plus the white dots fall within the target frame, while the colors on the left are obviously shifted.

Everyone noticed that the green on the left ran out, that is to say, the green reflected in this picture was greener than the standard Huai.

When the color drop point is biased in which direction, the color performance of the projector will be biased in direction.
is it completely placed in the frame, and the color performance is perfect?

The answer is not necessarily! Because this can only represent the color is not biased, but it does not mean that the color brightness is not enough.

Why the colors vary with similar color gamut diagrams ?

The picture above is the complete color gamut. Our Full HD1080p standard REC709 and UHD 4K BT2020 are in this color gamut.

Our previous color triangle test charts are all reflected in this color standard, and there is no color shift.

But even if the color setting point is accurate, but the color brightness is not enough, then it seems that the picture will always be dull and dull.

In fact, color brightness, including white brightness, is achieved by graphics, but this image will not be 2D, it should be 3D.


Write at the end

The amount of information taught today about the color knowledge of the projector is not too small. But it can already solve the problem that the enthusiastic netizens put forward the similar color triangles, and why the color of the picture looks so different.

So how do you get a projector with a more comprehensive spectrum?
Is the measured spectrum of the laser projector necessarily worse than the UHP bulb machine?
Of course not. For example, JVC Zeus is a laser machine, but the spectrogram is very good.
In fact, the simplest truth is still expensive!
 
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