Tags: earth hour, energy saving, environment, ICT products, IT products, laptop, TCO Certified
On Saturday March 26th hundreds of millions of people around the world are expected to participate in the world’s largest climate manifestation Earth Hour, and show our support by turning off the lights for one hour. Earth Hour is a great symbolic gesture to highlight the problems with climate change we are facing.
Why not show your support for the earth and “celebrate” Earth Hour every hour 7 days a week by switching off electronically gadgets when not using and change to ICT-products with minimal impact on the environment.
Pledge your support for more laptops designed for the planet
One simple action for more “green” notebooks is to show the IT industry that there are many of us who want to see more notebooks designed with the environment in mind. On TCO Development’s website you can show your support and take part together with companies, national authorities and individual people all over the world to influence the major computer manufacturers to offer the market more TCO certified notebooks. Pledge your support for laptops designed for the planet.
Posted by Birgitta Halvarsson
Tags: computer display, image quality, laptop, luminance, Notebooks, outdoor readability performance, TCO Certified, TCO Certified Edge
Achieving Readability in outdoor environments has to date been problematic for notebook displays as they have not delivered sufficient luminance to counteract the ambient daylight.
In a major step forward for notebook usability, leading edge PC brands are now beginning to offer select notebooks designed to meet the specific outdoor performance needs of the mobile user, specifically higher luminance.
The new TCO Certified Edge award for Outdoor Readability in Notebooks will highlight leading edge Notebooks that offer high luminance as well as superior eco-design and image performance.
Two times higher luminance for outdoor readability
A display’s performance in daylight depends primarily on the differences between the screen luminance and the reflected luminance from daylight, sunlight or similar illumination falling on the screen. To counteract the negative effect strong ambient light has on the readability of the display, notebook manufacturers have typically used anti-reflective and anti-glare treatments, but readability improves mainly by increasing the display luminance. Most Notebook displays today achieve a maximum luminance of around 200-250 cd/m² (candela per m²), which is adequate for use with indoor lighting. For outdoor use, it is recommended that a display used during overcast conditions should achieve a luminance of 500-800 cd/m², and in full sunlight 800-1000 cd/m². These higher measurements are considered bright enough for the varying illumination conditions of the outdoor environment, and may help users eliminate the need to shield or tilt the display from the reflectance in order to view the image.
High luminance – without compromises
A top performing Notebook display should also retain other critical image properties even at these high luminance settings. Features such as contrast, greyscale and colour levels should remain constant regardless of the luminance level. The TCO Certified Edge award for Outdoor Readability ensures this level of performance at the highest luminance setting. This award makes no compromises in our demands for high visual quality & low environmental impact whilst achieving outstanding outdoor readability performance.
