LED to enter the flat-panel TV still time, the need for further research and development

Osram Sylvania said Products executives Robert Horner, although LED will eventually be a backlight for liquid crystal display (LCD TV), but at least five years is unlikely this apparent transformation.

Our manager display systems division post Osram Sylvania company Horner says the benefits of using LED - light output of high efficiency and low working temperature, is still difficult to achieve because of the backlight need too much LED. Horner believes that the large number of LED required to make their costs become barriers to entry into consumer products such as cost sensitive tv. "No one is willing to spend thousands of dollars to buy a 32 inch LCD TV," Horner said."

Generally, because of the excellent perspective (Viewing), and the ratio of cold cathode fluorescent tube (CCFL) and lighter weight and lower power consumption potential, it is more suitable for LCD backlight. But Horner pointed out that before the cost and performance of LED can be accepted by LCD TV, the need for further research and development work.

Horner pointed out that "how best to control the LED, how to integrate LED into TV control, and how LED responds to the television signal, Osram and other LED manufacturers are studied. Horner said that LED has not yet been able to get large-scale applications, for the existing Osram lighting technology - LCD TV oriented fluorescent lighting opened a window of short-term opportunities.

According to Horner, the planar fluorescent lighting technology Osram was first developed in 1997, with lighting life of 100000 hours, 30000 hours longer than CCFL, but also has higher brightness and uniformity. It costs more than CCFL, but well below LED. Horner said that the technology has been used in Samsung Electronics, a 32 inch LCD tv. Previously, the technology is mainly used in commercial and industrial lighting applications.

Although Osram is trying to reduce the weight of the planar fluorescent lighting and improve its efficiency, but Horner believes that the long term, with the LED to solve the cost and application of the barrier function of the technique in flat-panel TV market will be limited.