Jump to content

Black level and shadow detail clarification


Recommended Posts

Hello all

I will soon be going out to audition a new tv. Have been sitting on the fence for months trying to create a shortlist.

Anyway, I read alot about black level and shadow detail when people talk about display devices and get the impression that it is an important factor to consider.

My question is.

What do I look for in a picture to decide if the tv has good black levels and shadow detail ?

I think i know but just need some other opinions and clarification.

Thanks

Daywalker

(also posted over at HTC)

Link to comment
Share on other sites



Hello all

I will soon be going out to audition a new tv. Have been sitting on the fence for months trying to create a shortlist.

Anyway, I read alot about black level and shadow detail when people talk about display devices and get the impression that it is an important factor to consider.

My question is.

What do I look for in a picture to decide if the tv has good black levels and shadow detail ?

I think i know but just need some other opinions and clarification.

Thanks

Daywalker

(also posted over at HTC)

Also important is the lighting in the showroom - they almost all look good in brighter conditions.

Try to see them with low light or lights out and showing a dark scene as mentioned above or a space scene in a star wars film etc.

Of course none of this is important if you watch with lights on most of the time!

Dan.

Link to comment
Share on other sites

Dan

I plan to set the tv up with lighting behind the screen.

My other half hates watching tv with the lights off so i thought this woukd be a good compromise. I've also heard it improves picture quality aswell.

Daywalker,

If you are doing this then this will negate the difference in the blacks between the panny based screens (some fujitsu screens are Panasonic glass) and the other better plasmas ie Pioneer and NEC.

I am doing the same and deciding between NEC and pioneer at the moment.

Pio for form/warranty/free install/+included stand or wall mount and NEC for value.

The Pio is in front for me based on it's looks - suits our house!

Both great picture quality IMHO!

Good luck!

Link to comment
Share on other sites



Using some subdued lighting behind the screen is in deed a good idea.

A small, low power desk lamp pointing at the roof works well to reduce eyestrain caused by viewing in a completely dark environment.

In this subdued lighting environment, it is a good idea to reduce the Contrast setting on the TV otherwise it will be blindingly bright.

You will also need to adjust the Brightness control so that black is black and not grey.

This is an area of performance where digital displays have REAL problems.

You will find that you will be unable to get a black screen in subdued lighting with a digital display. All you will get is a shade of grey.

Under these circumstances, you will also notice the low shadow resolution and pixelation inherent in current digital displays.

Only CRT RPTV’s, and some direct view CRT TV’s can give true blacks and shadow detail in a low light environment.

Blacks on a good CRT RPTV can be so good that the screen is not visible with the lights off. Now that’s black.

Most digital displays have a contrast ratio of about 1,000:1 compared to a CRT RPTV’s 8,000-10,000:1. That’s a BIG difference.

So, if you have your hart set on a digital display, plan on viewing with the lights on, or you may be annoyed by the grey blacks and lack of shadow detail.

IMHO, good black performance is very important, as it greatly enhances depth and the three dimensionality of the image.

Regards,

Owen

Link to comment
Share on other sites

Thanks for your replys guys

Maybe i did not explain myself that well. I will not be buying a digital display. It will be a 76 cm crt.

Owen has confirmed to me what I thought that good black levels give depth and a 3D quality to the image.

On my old 68 cm nec the image looks very 2 dimensional compared to the 76 hx sony which looked very 3 dimensional. At the time I wasn't sure why. The scene i was looking at was from the LOTR FOTR.

Thanks

Daywalker

Link to comment
Share on other sites

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...
To Top