Last week, the U.S. Philadelphia Semiconductor Index fell slightly to 0.34%, the Dow Jones Industrial rose 0.89% and the Nasdaq composite index decreases of -0.20%; Taiwan's electronics industry index fell 4.59 percent, weaker than the weighted index (down 3.61%). Over the same period, the A-share electronic index followS the market to rebound, rising 1.29 percent, weaker than the small board and GEM index. Among them, index of optical components and passive components leads the rise.Data this week is optimistic,the offer of a large panel continues to rise in the latter part of April ,which shows good warming of display.Since the display backlight is current applications and impact factor of LED, combined with the start of the LED lighting, we maintain a bullish view of the LED market this year. In March, the BB values of North American and Japanese semiconductor equipment continue to divide, but the overall trend is in the warmer. China's PC market this year is expected to maintain rapid growth, the ultrabook is the driving force.The iSuppli has dismantling Lumia900 of Nokia, Qualcomm and Samsung are the biggest winners.