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Sharp has prototyped a five-primary-colour display that is said to reproduce the real surface colours that humans are capable of perceiving.

The pixel structure of the panel is based on five colours, adding the colours C (cyan) and Y (yellow) to the three standard R (red), G (green), and B (blue) colour set.

This combination expands the colour gamut that can be rendered within the colour spectrum that humans can discern with the unaided eye, and is said to enable the display to reproduce more than 99 per cent of real surface colours.

Nearly all real surface colours can be rendered faithfully, even those such as the colour of the sea (emerald blue), brass instruments (golden yellow), and roses (crimson red), that have been difficult to render using the conventional RGB colour scheme.

For example, with a standard RGB scheme for computer and monitor display devices only 35-60 per cent of all real surface colours can be reproduced.

The newly developed display type from Sharp with RGBCY colour scheme also comprises Multi-Primary-Colour Technology, which features special image processing circuitry.

Sharp said adoption of this technology will enable more efficient use of light energy produced by the backlight and will also provide greater energy savings.

In the future, Sharp will be working to further improve the basic performance of this display and making efforts toward its practical application.

A first prototype has been on display at the SID conference in the US.

However, when the new five-primary-colour scheme will be seen in products is not yet determined.

Sharp Microelectronics

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