Boston The industry's love affair with giant flat-panel TVs was evident at last week's Society for Information Display Conference, but display makers also showed they are paying increased attention to electrical and mechanical design.
Display makers exhibited new architectures for TVs and are increasingly deploying wide-screen technology. Mobile displays, another fast-growing sector, are also benefitting from new or improved circuit designs and the deployment of software algorithms designed to produce more pleasing viewing characteristics.
Consumers have a growing appetite for high-resolution content on mobile displays, said Harold Hoskens, president and chief executive of Philips Mobile Displays (Hong Kong). Philips recently unveiled the Nemesis P8894-1, a transflective LCD module with a density of 259 pixels/inch2, twice that of quarter-VGA-format phone displays, the company said. The display is the first to implement Philips' LifePix software color-mapping algorithms, which ares said to optimize brightness and color clarity.
Semiconductor suppliers play a key role in the display evolution by using their own technology or licensing others' to develop high-performance display drivers. Silicon Works of Korea announced it will manufacture a system-on-chip driver for small-form-factor TFT LCDs that uses the PenTile matrix technology from display IP provider Clairvoyante Inc. (Cupertino, Calif.). The red-green-blue-white technology takes advantage of the human vision system to increase brightness and perceived resolution while simplifying driver circuitry to cut costs.
Joel Pollack, president and CEO of Clairvoyante, expects the combination of the PenTile technology and the Silicon Works driver to ease design of competitively priced displays for high-resolution mobile products.
Analog Devices Inc. (Norwood, Mass.) introduced its AD8387 and AD8388 DecDriver ICs. The parts provide 12-bit input data resolution, which enables the display to achieve higher brightness and uniformity in such applications as digital cinema, said Ed Spence, marketing manager of display drivers.
The company also unveiled a single-chip LCD power module, the AD8754, which integrates a high-frequency step-up dc/dc converter, logic voltage regulator, dedicated Vcom amplifier and gate-pulse modulator.
Even higher levels of integration and performance will be required in future displays, National Semiconductor Corp.'s Jean-Louis Bories, vice president of the displays and wireless group, said in a keynote presentation. National introduced a dual-channel video format converter, the AVC5000, that enables the rendering of two high-quality images on a wide-screen, high-definition TV with up to 1,080-pixel resolution.
LG.Philips LCD Co. Ltd. showed a 55-inch TFT-LCD TV panel, the LC55W01-A5. Bruce Berkoff, executive vice president of marketing, called it the largest commercially available.
NEC Electronics America (Santa Clara, Calif.) demonstrated a 21.3-inch UXGA-resolution TFT LCD module with an LED backlight. The module is expected to become available early next year.