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Samsung develops 4-in. LCD for PMPs

Posted: 05 Nov 2004 ?? ?Print Version ?Bookmark and Share

Samsung Electronics Co. Ltd. (Seoul) has developed a 4-inch screen liquid crystal display (LCD) with a 16:9 screen ratio exclusively for portable media players (PMPs).

PMP is a next-generation multimedia player that can play video images downloaded from the Internet at any time, any where in a convenient format. Market anticipation for a full-scale portable video player has increased dramatically in recent months. PMP's expanded capacity allows for various media player features including music and video.

The 4-inch widescreen LCD is larger than LCDs used in current portable media players that measure 3.5-inch diagonal and have a 4:3 screen ratio. When a 16:9 Digital Internet Video eXpress (Divx) file is played in the current LCD format, the screen is not fully utilized, particularly at the top and bottom.

According to the company, the 4-inch screen was chosen because a 3-inch screen was difficult to view while a 5-inch screen is too large to fit into a pocket.

The 4-inch screen uses an 8-bit digital interface and has a 50 percent color gamut that offers a clear, crisp image, the company said. Brightness is 180 candelas per square meter, up from the 150 generally used on mobile handsets.

- Spencer Chin

EE Times




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