Corporate and private consumers in the market for liquid crystal display (LCD) screens must be wary of response times claimed by manufacturers, warns Tyrone Young, sales and marketing manager at Philips.
"Response time is used to denote the amount of time taken for a pixel in an LCD screen to go from full black to full white and back to full black again. It`s measured in milliseconds (ms). Response time is a major feature and selling point for LCD screens," explains Young.
The faster the pixel changes or the lower the response time, the less ghosting, blurring or streaking the user will see in the changing image, he says.
Bruce Byrne, visual communication specialist at Drive Control Corporation, comments: "Two milliseconds to 15ms is suitable for video, gaming or TV applications while 8ms to 16ms is adequate for business applications."
The problem arises, he says, when striking a comparison between LCDs. "We have seen advertised response times as low as 2ms of which there`s no explanation on the methods used to reach such speeds.
"There are no standardised methods used to measure response times. Some manufacturers base their claims on measurements from grey to grey while others base them on black to white instead of the full black to white to black sequence," says Byrne.
Until standards can be applied to how manufacturers measure and advertise this functionality, Byrne emphasises, consumers must do their own thorough checks.
"Consumers are better off testing the LCD visually by loading the application they will be using on the display and seeing for themselves," says Young.
Share
