Recently, Taiwan display maker Chi Mei EL unveiled its 25-inch screen that's less than a millimeter thick at the FPD International exhibition in Japan on Wednesday. The new screen is based on the emerging OLED technology and attracted a steady stream of show attendees who snapped pictures of the screen or who peered around the edge to take a look at just how thin it is.

it’s reported that Sony has an entire wall of its 11-inch XEL-1 OLED TVs set up here at Ceatec 2008, but in contrast with past gadget shows, it's not the only company showing off OLED prototypes. Panasonic may have said earlier this week that OLED is still far from becoming a mass-produced mainstream technology for use in big-screen TVs, but other electronics makers are plowing ahead with their own research on the organic, thin film technology: NEC, Sony, and KDDI showed off what they've been doing with OLED in their research labs.

In the IFA 2008, many manufacturers introduced LED TVs to show their capability of combining LED and TV technology.SamsungFor example, Samsung introduced the A950 series, which supports Full HD(1920*1080) with screens made 46 or 55 inches, and adopts LED back light, which can control the brightness more efficiently.Sony

Why use LED backlight？A few days ago in the IFA 2008 hosted in Berlin，many of the branded TV manufacturers introduced LED-backlighted TVs(LED TV)，aimed at the top layer of customers. Some leading manufacturers such as Sony and Samsung already introduced LED TV in 2006，but with the costs of LED have decreased and the LED technology has progressed rapidly, LED TV has moved toward a real product rather than just a demonstration of technology.

Recently, Philips and Sony both unveiled new LCD televisions that use LED backlights at IFA, a major consumer electronic show held in Berlin, Germany on August 29 - September 3. Both companies had new TVs that used the LED backlights to achieve local dimming, while Sony also had a 40-inch LCD TV with LED edge-lighting – almost certainly a first.

Recently, Sony Corp announced a new product line of Bravia LCD TVs including the XR1 series, which has an RGB LED backlight unit. The company said that the XR1 series offers "the highest picture quality in the history of Bravia," and also has an extremely wide color gamut of 122% NTSC. It is scheduled for release on Oct 10, 2008, many of the details have yet to be released.

Recently, Japan's Toshiba Corp and Matsushita joint venture to develop OLED displays with the world's longest product life span and lowest power consumption. The venture has developed the new panel in cooperation with Idemitsu Kosan Co, a Japanese oil refiner active in OLED materials development.

Matsushita Electric Industrial Co. will begin test production of next-generation displays for TVs next year with plans for commercial output as early as 2011. Competition is heating up among the world's electronics makers, including Japanese rival Sony Corp. and Samsung Electronics Co. of South Korea, in OLED, or organic light-emitting diode, displays.

Four consumer electronics companies, including Sony and Sanyo Electric, have settled a complaint that they were infringing a patent on semiconductors related to LEDs and laser diodes used in products such as mobile phones, billboards, Blu-ray disc players and data storage devices, according to lawyers for the patent holder.  

In CEATEC JAPAN 2007 exhibited recently in Japan , Japanese electronics giant SONY Corp announced the LED LCDTV back light module technology used in the latest 70-inch module of BRAVIA LCD TV . As one of the leader brands of LCD TV, SONY’s choice of back light module technology will certainly cause some influence to the industry, especially the trend of LED modules used in high-end LCD TV and designs of periphreals. It’s possible that the most common strategy might be mimicking SONY, SAMSUNG and SHARP.