Active Matrix Display Using Nanowires

April 24, 2008

Nanowires are 20 nanome­ter cylin­dri­cal struc­tures that are assem­bled on glass or flex­i­ble sub­strates. Researchers at Purdue University’s Birck Nanotechnology Center used nanowires as tran­sis­tors as part of an organic light emit­ting diode (OLED) dis­play. David Janes, a researcher at Purdue University’s Birck Nanotechnology Center and a pro­fes­sor in the School of Electrical and Computer Engineering, com­mented that this “is a step toward demon­strat­ing the prac­ti­cal poten­tial of nanowire tran­sis­tors in displays…”

OLEDs require a com­plex process and is dif­fi­cult to man­u­fac­ture pix­els small enough for dis­plays with high res­o­lu­tions. Nanowire-transistor elec­tron­ics are billed as a pos­si­ble solu­tion for both reduc­ing cost and enabling high res­o­lu­tions on OLED displays.

Since so many LCD man­u­fac­tur­ers are on the OLED band­wagon, there will need to be a tremen­dous amount of R&D and pos­i­tive results in the short term for reduc­ing the com­plex­ity and cost of man­u­fac­tur­ing OLEDs, ensur­ing pic­ture qual­ity over 50,000 hours (bright­ness dete­ri­o­rates at dif­fer­ent rates among red, green and blue ele­ments) and reduc­ing power con­sump­tion. I think most are under­es­ti­mat­ing the enor­mous amount of work needed to scale OLED dis­plays to much larger sizes, but I opti­misti­cally wait for 32″ OLED TVs to hit the mar­ket in a few years. I’m not hold­ing my breath though.

Source: Purdue University

[tags]Nanowire, OLED, Organic Light Emitting Diode, Purdue University[/tags]