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Re: [mediaqueries] Reasoning behind (scan) MQ?

From: Rune Lillesveen <rune@opera.com>
Date: Thu, 14 Nov 2013 00:02:51 +0100
Message-ID: <CANz6XvR-CC=cFgAXna6C3nEdXjYcZd9=xHaN05T7cXVV-TbUeA@mail.gmail.com>
To: "Tab Atkins Jr." <jackalmage@gmail.com>
Cc: www-style list <www-style@w3.org>
On Wed, Nov 13, 2013 at 2:00 AM, Tab Atkins Jr. <jackalmage@gmail.com> wrote:
> What's the reasoning behind the (scan) media query?  It has two
> values, "progressive" and "interlaced", which describe different ways
> that TVs (CRTs only?) update their screen.
>
> What's the point of this?

Possibly to avoid interline twitter[1] on interlaced displays.

> What sort of things would you style differently based on this value?

Avoid high contrast 1px borders and other sharpness that would trigger
this type of problem.

[1] http://en.wikipedia.org/wiki/Interlaced_video#Interline_twitter

-- 
Rune Lillesveen
Received on Wednesday, 13 November 2013 23:03:19 UTC

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