Global Sources
EE Times-Asia
Stay in touch with EE Times Asia
?
EE Times-Asia > Optoelectronics/Displays
?
?
Optoelectronics/Displays??

TFT LCD modules integrate LED backlight

Posted: 13 May 2009 ?? ?Print Version ?Bookmark and Share

Keywords:TFT LCD? LED backlight? CCFL?

NL10276BC30-34D TFT LCD

NEC LCD Technologies has released four amorphous-silicon TFT LCD modules incorporating a newly designed LED light source unit into the backlight system. These units offer long operating life: 70,000 hours at room temperature (25C) and 60,000 hours at high temperature (70C).

The new products expand NEC LCD's line-up of TFT LCD modules with white LED backlight systems. The new part numbers, screen sizes and resolution are as follows.

The NL10276BC30-34D 15-inch XGA LCD module is the largest in the company's lineup of white LED backlight products. The module maintains mounting and signal compatibility with the company's lineup of conventional cold cathode fluorescent lamp (CCFL) LCD modules. NL10276BC30-34D features a wide operating temperature range from -20C to +70C.

The NL10276BC20-18 10.4-inch XGA module offers high-resolution and achieves approximately 30 percent reduction in weight and frame area compared to the company's CCFL modules. The NL10276BC20-18 maintains signal compatibility with the company's current line of conventional products and features wide operating temperature range from -30C to +80C.

The NL8048BC24-09D 9-inch and NL8048BC19-11D 7-inch WVGA LCD modules provide ultrawide viewing angles of 176 both horizontally and vertically, using NEC LCD's proprietary SFT technology. The modules WVGA modules maintain mounting and signal compatibility with the company's lineup of conventional CCFL LCD modules and features wide operating temperature range from -20C to +70C.

Increasing demand for LCD modules featuring low power consumption, smaller dimensions, lighter-weight designs and higher resistance to shock and vibration has prompted the development of LCD modules equipped with white LED backlight systems. White LED backlight systems offer high performance in power consumption, compact designs as well as greater resistance to shock and vibration as compared to CCFL LCD modules. In addition, white LEDs do not require inverter circuits, which generate high-frequency noise and harmonic currents that generate malfunctions in peripheral devices and hinder precise testing results. White LEDs are completely mercury-free and pose fewer hazards to the environment than CCFLs, which contain trace amounts of mercury.

In response to the growing demand for white LED LCD modules, NEC LCD has aggressively developed a product lineup featuring white LED backlights beginning with the launch of a 6.5-inch LED LCD module (part number NL10276BC13-01C) in May 2007. In September 2008, the company introduced five new white LED LCD modules designed specifically for industrial applications and featuring NEC's newly designed long-life (up to 70,000 hours) white LED light source unit. The four new white LED products introduced today further expand NEC's long-life white LED LCD product offerings.

- Henri Arnold
EE Times Europe





Article Comments - TFT LCD modules integrate LED backli...
Comments:??
*? You can enter [0] more charecters.
*Verify code:
?
?
Webinars

Seminars

Visit Asia Webinars to learn about the latest in technology and get practical design tips.

?
?
Back to Top