Date: 26/08/2009

TFT LCD panels with LED-backlit display from Toshiba

Toshiba has announced a new color active-matrix, thin film transistor (TFT) lcd panels with 1 of 100,000 hours Mean Time Between Failure (MTBF) 1 light-emitting diode (LED) backlight systems. And the suggested industrial applications are test and measurement equipment, medical equipment, mobile computing devices and more.

The series includes eight new LCD products, available in four screen sizes: 5.7-inch, 8.4-inch, 10.4-inch, and 12.1-inch. Display resolutions are QVGA (320 x 240) and VGA (640 x 480) for the 5.7-inch module, and SVGA (800 x 600) and XGA (1024 x 768) for the three larger sizes.

The new LED-backlit displays do not require the high-voltage and high-frequency circuits needed to control luminance in CCFL-backlit displays, thus enabling a high level of flexibility in system design in terms of safety, electromagnetic interference (EMI) compensation, and system architecture.

"In 2008, ahead of all competitors, TMD started volume production of a new series of industrial TFT LCD panels with an LED backlight system rated for 70,000 hours MTBF at ordinary room temperatures of 25°C. This year, in a new development, TMD has implemented LED backlight systems with an MTBF of 100,000 hours under the same conditions," said Sean Collins, vice president business development, Display Devices and Components Group, for TAEC.

The modules are designed with a replaceable backlight structure to accommodate product longevity requirements encountered in some harsh industrial environments. TMD has added LED driver circuitry into the electrical interface for the displays, to simplify design-in time and cost.