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Archive for July, 2009

An editorial on LCD panel quality and what to look for on your next purchase

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This editorial is an open response to AnandTech’s Desperately Seeking Quality LCDs article published last June 17.

For the last 2+ years there have been two developments in the LCD market that I know I’m not alone in disliking:
(1) Glossy panels, you either love them or hate them – I’m in the latter group.
(2) So-called LCD “post processing”, used on many high-end displays.

Furthermore, the response time race also known as the “ms race” has had a very negative effect on LCD quality. This somewhat relates to the megapixel race seen in point and shoot digital cameras, where marketing went crazy for higher megapixel counts at the cost of reduced performance in low-light conditions.

Dell 2209WA monitor E-IPS panel

It is a commonly known fact that 60hz is what most people will find a LCD pleasing to look at, and this is also close to what our eyes are capable of processing. 60hz is also what 99% of LCDs sold today operate at, with very few exceptions.

One second = 1000ms, thus a refresh rate of 1000ms / 60hz = 16.7ms.

What this means is that at 60hz the screen is redrawn once every 16ms. So why do we see LCD displays continuing to push below 16ms when there is no way for it to render that fast at 60hz? The answer is simple: marketing.
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Written by Per Hansson

July 28th, 2009 at 2:56 am