This means that for investors seeking income-oriented opportunities with daily liquidity, a well discriminated, quality high yield portfolio remains one of the most attractive investments across all fixed income markets.

FORBES: Should Investors Still Go For High Yield?

Improvements have been made in image quality with the newer OLED technology, but high manufacturing costs, yield limitations and limited lifetime make it expensive and challenging for all but the smallest devices.

ENGADGET: NanoPhotonica develops S-QLED, OLED to develop inferiority complex soon