Microemissive Displays Limited

The University of Edinburgh

Ian Underwood

James Gourlay

Jeffrey Peter Wright

Dwayne Burns

An optoelectronic device includes a substrate () comprising semiconducting material and an array of smart pixels arranged on or in the substrate, each smart pixel comprising at least one layer () of organic light emitting material, and a light permeable electrode () in contact with the organic layer on a side thereof remote from the substrate. The smart pixels may be capable of one or more of a range of functions, including image sensing, processing, communication and display.

Optoelectronic device having an array of smart pixels

A method and circuit for controlling a light emitting element such as a light emitting diode. A pulse coded modulated signal of a set duration is supplied to the element (LED) so as to cause the element to emit light for a period of time depending on the duration of the signal, the apparent brightness of the element depending on said period of time. The signal can be applied by sequentially activating each of a plurality of bit lines (B, B, B), each comprising a storage node (S, S, S), for a binary weighted period of time.

Pixel circuit and operating method

An optoelectronic display comprises a substrateof semiconducting material and an array of organic light emitting diode (OLED) pixels arranged on the substrate, which comprises an active circuit for controlling the light emitted from each pixel. Each pixel comprises at least one layer of organic light emitting material, and an (at least semi-) transparent electrodein contact with the organic layer on a side thereof remote from the substrate, the electrode comprising an electrically conducting polymer

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Edinburgh, United Kingdom

Ian Underwood