Sony Bravia LCD TV wows Which? with new technologyViewing panel impressed by 200Hz motion software

17 December 2008

Sony Bravia KDL-40Z4500

Sony Bravia KDL-40Z4500

The latest line of Sony Bravia LCD TVs has impressed Which? with its superior ability to show smooth motion sequences in standard definition.

We first saw the new 200Hz Motionflow models, including the Sony Bravia KDL-40Z4500, at the IFA show in Berlin earlier this year. The models have recently been released and have been through our full lab test program.

Sony Bravia Z4500 with 200Hz Motionflow

The Which? viewing panel was particularly taken by the smooth motion of images shown in standard definition. The Sony Bravia KDL-40Z4500 is an HDTV, but as most content is still viewed in standard definition, this characteristic of the new Motionflow Bravias has been described as 'a welcome feature' by Which? researchers.

Michael Briggs, principal Which? researcher, said: 'There are always new processing claims being plastered onto the sides of TVs, but it's often tricky too see any improvement to the picture quality as a result; in fact the digital processing sometimes has an adverse effect on the picture. The 200Hz Motionflow feature, however, actually seems to improve the motion sequences.'

LCD and plasma TV reviews

TV signals are broadcast at 50Hz, which means that an unprocessed image will show on the screen at 50 frames per second (50fps). The Motionflow processing engine on this new line of TVs from Sony quadruples this refresh rate. Other manufacturers have employed similar software on their TVs, but the Motionflow processing from Sony, is the most recent development that has resulted in a significant improvement.

Full results of the Sony Bravia KDL-40Z4500 will be added to our Which? LCD and plasma TV reviews report in the next few days.

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