XGA resolution full-video microdisplay using light-emitting polymers on a silicon active matrix circuit

Emissive Microdisplays

“…This was subsequently reported in more detail by Abraham et al 62 in 2001, including the use of a white LEP. Both Smith 34 and Abraham et al 62 comment on the early stage of development at that time and the consequent poor cosmetic quality of image then achieved; Abraham and co-workers go on to detail the required improvements. They report that the CMOS backplane used to drive the LEP is the same one reported by Blalock et al 63 as a backplane for a ferroelectric LC microdisplay.…”

Advances in elevated diode technologies for integrated circuits: progress towards monolithic instruments

“…Organic light-emitting devices (OLED) have recently created much interest in the flat panel display field because of their potential for high brightness, high power efficiency, and large area fabrication [37]. Since these materials are non-crystalline, they also provide a viable option of integrating a light emission source on silicon [10,11]. While successful integration has been demonstrated, several significant, but solvable issues remain before they gain commercial acceptance.…”

“…What is not known is the effect of light absorption of upper diodes from lower diode emission. The pixel size of 12 mm used by Abraham et al, should permit stacking [10]. Therefore for LEP spin-on materials, the colour filter technique seems like the most likely one to succeed in the near-term.…”

“…The operation of the in-pixel pulse-width modulation circuit is shown in Fig. 14 where time-multiplexed RGB analogue data are input at DATA_IN [10]. The pixel uses PMOS transistors instead of capacitors for data-value storage.…”

“…The performance and cost advantages that can be realised by elevating the photodiode array encourages increasing pixel functionality so that several different pixel architectures have been developed for use with them. Beyond sensing, organic light-emitting devices (OLEDs) have also been placed onto integrated circuits to create emissive microdisplays [10][11][12]. This article discusses state-of-the-art of elevated diode technologies, their current projected applications, and future prospects for these technologies.…”