OLED future market prospect analysis

Since the 1999 launch of the first OLED-display.cnLEDw.com/ >LED display, the industry generally believe that OLED will become a leader in the field of flat panel display. As a killer LCD display, OLED has been expanding its application, and experts have predicted that 2002 to 2003, OLED technology will be applied in more than 10 inches of the display.

However, contrary to expectations, in the first 9 years of 2008, only a product of a product of 10 inches of OLED came out, the production of this product is very small, and manufacturers believe that this product makes the company's loss of revenue. Why was the OLED only a few years ago confined to such a small screen application? Now SONY's 11 inch OLED TV has begun to test the market, then what will happen?

The industry of OLED market has not reached the expected expectations there are two explanations: first, LCD has also been improved, excellent performance and low cost increasing, and that makes the industry of passive matrix OLED (passive-OLED) gradually lost interest. Second, active matrix OLED (AM OLED) on the active circuit, the current manufacturing market display materials and structure, puts forward a very high request as well as the interaction between technology and display circuit, and the AM LCD does not require manufacturers to spend AM OLED such a large investment, and the manufacturing process is simple, easy to implement.

DisplaySearch research vice president Barry Young said that in the past few years, the passive-OLED industry continues to shrink, the company dropped to about 15, while in 2004/2005 down to the lowest in history. Survival of the manufacturers, including only re treasure Technology (RITDisplay), TDK, Samsung (Pioneer), Univision, SDI (Samsung), there are a few other manufacturers. This situation has improved to 2007 this year, the first 2 inch AM OLED SDI at Samsung per month to reach hundreds of thousands, two other manufacturers followed, odd (Chi Mei EL, photoelectric CMEL) monthly production of tens of thousands, thousands of SONY (Sony).

According to DisplaySearch reports, 90% of OLED products for the use of the two applications: personal media players and cellular phones (cell). Recently, AM OLED is mainly used for mobile phone main screen, and passive-OLED for secondary screen.

Samsung SDI mobile phone with AM OLED, using 262 thousand colors, 10000:1 contrast

Currently OLED applications are mainly concentrated in the field of 2.2 to 2.4 inches, using QVGA ((320 x 240 pixels) format. However, manufacturers are now actively expanding from 2.8 to 3.2 inches. For example, CMEL has more than 2.4 inches in the field, released a 262 thousand color, 2.8 inches display.

OLED module has a great advantage over the LCD, mainly in: ultra-thin 2mm profile, essentially no limit of + 90 degrees of view, - 40 degrees to +85 degrees C very wide operating temperature range. The next generation of AM OLED display design is likely to use more than 10000:1 contrast, 200 nits brightness, power is only 1/4 watts (40% pixels). The current display life (end point 50% decay lifetime) for 50 thousand hours.

Young believes that small size OLED in short supply, but there are indications that in 2008 the supply will increase. For example, CMEL and Samsung SDI have announced plans to add new production lines, so that the company's OLED production doubled, while further improving the current production line capacity. 2008 Samsung SDI and CMEL AM OLED targets are positioned in the 3-8 inch field.

Built in audio system using pioneer 65000 color OLED display

In contrast, the previous passive-OLED manufacturer LG Electronics (LG Electronics) has been transferred to the field of AM-LCD in 2007, while Canon (Canon) and other manufacturers are also actively involved in this field.

But there are some signs that the next few years, large size OLED will enter the market, several companies have released a large size AM OLED products, such as: Sony 11 inch, 27 inch, 15.1 inch screen Samsung CMEL 25 inch display, etc.. Young said: "in 2006 the release of the OLED TV caused a sensation that has been silent big size OLED community has been reborn, SONY in late 2007 released a 11 inch OLED tv. It is reported that the use of 960 x 540 pixel AM display SonyDrive XEL-1 TV is indeed very good, although the price of up to $1700-1900, but the first day of listing in Japan was snapped up OLED. The TV thickness is only 3mm, weighing 3.3 pounds, SONY said the product will enter the U.S. market in the near future.

Until now, Samsung is expected to issue a statement released in 2009 14 inches, 15 inches and 21 inches AM OLED display, 2010 launch 42 inch AM OLED TV, CES and Samsung is on display at its 40 inch AM OLED prototype. At the same time, CMEL also plans to release 32 inches AM OLED TV in 2010. LG Philips LCD is also actively developing AM OLED, has launched a flexible display technology. In addition, there are reports that Matsushita keen on TV size AM OLED field, Casio also came from time to time to join the industry news. According to DisplaySearch forecast, 30 inches AM OLED TV will be available in 2009.

However, this does not guarantee that the OLED market will not be back again. In fact, Toshiba (Toshiba) said its 2009 launch 30 inch AM OLED scheme in December last year gains damage, Toshiba re positioning of its AM OLED business, the future will be the main mobile phone and other small size screen. (http://www.eetimes.com/news/design/showArticle.jhtml? ArticleID=205600730)

Source: China Semiconductor Lighting Network