Small Molecule Organic Light Emitting Diodes Make the Perfect Solution for Mobile Phone Sub-displays
Small molecule organic light emitting diodes (SMOLEDs) are being used in exciting applications in mobile phone sub-displays, which are just the right size for their utility. The clam-shell type of flip phones have two displays -- a small sub-display on the outside and the main one on the inside. Since constraints in manufacturing techniques make SMOLEDs unsuitable for large displays, they have been targeting the sub-display segment. This has resulted in about 90 percent of flip phones having sub-displays adopting SMOLEDs. Now, with the integration of cameras with phones, SMOLEDs are finding new use as the viewfinder, since they are more power efficient than liquid crystal displays (LCDs).
This Frost & Sullivan research service examines the world small molecule OLED technology and reviews advances in the OLED display market with specific focus on SMOLEDS. The research provides detailed information on organizations, companies, universities, and institutions involved in the research and development of OLED displays -- particularly SMOLEDs.
General Purpose Lighting Market Creates Opportunities for OLEDs
A lot of research is being conducted on solid-state lighting (SSL), which is being touted as a likely blockbuster product in the power market. LEDs with their point sources for incandescent lamps and OLEDs with replacement sources for fluorescent lamps are considered the most suitable light sources for SSL technology. "Certain feasibility demonstrations have revealed that both organic and inorganic light emitters can outperform conventional light sources, but commercial mass production will still take some more time," states the analyst.
Neither SMOLED nor polymer OLED, however, has a clear advantage in the market for general lighting panels. While SMOLED's material characteristics and manufacturing processes are likely to stand it in good stead, polymer OLEDs have the cost advantage, a vital purchase factor for lighting devices. Nevertheless, a greater operational lifetime of 10,000 hours gives SMOLEDs a slight edge over light-emitting polymers in the general lighting market, where most applications need lifetimes of more than 20,000 hours.
SMOLEDs Eat into LCD Market Share for Small-sized Displays
SMOLEDs are stealing the march over LCD technology in the mobile phones, personal digital assistant, and camera markets by being slimmer and more lightweight and power efficient. While SMOLEDs can be as thin as their circuitry, LCDs' requirement for backlighting adds to their thickness and heaviness. "SMOLEDs have a host of other advantages such as wide viewing angles, full color capability, and much higher contrast ratios," notes the analyst.
In motion pictures and video, SMOLEDs' faster response time of 200 frames per second ensures that the pictures do not jerk or blur, unlike LCDs. Current research activities are also focusing on improving the manufacturing process of OLEDs to make them as cost effective as LCDs. These obvious advantages are working to help OLEDs replace LCDs in the small-sized display segment.
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