Plessey Semiconductors Limited

Keith Strickland

Samir Mezouari

Weisin Tan

Zainul Fiteri

Ahmad Makkaoui

James Pilkington

A method of forming a light emitting diode array comprising a plurality of light emitting pixels, wherein at least one of the light emitting pixels comprises: a light emitting diode configured to emit light of a first primary peak wavelength; and organic semiconductors dispersed in a medium, wherein the organic semiconductors are configured to receive and convert input light of the first primary peak wavelength from the light emitting diode to provide output light of a second primary peak wavelength.

Monolithic RGB micro LED display

An LED backlight for use with a display panel, the backlight comprising a monolithic LED array having a surface and comprising a plurality of LEDs for emitting light from the surface of the array; a monolithic collimator array comprising a plurality of collimating channels, and being aligned so that each of the collimating channels is aligned with one or more of the plurality of LEDs, wherein the collimating channels are configured to collimate emitted light emitted from the LEDs to angles in the range of about +/−50° from a line substantially normal to the surface of the LED array; a microlens array for focusing the collimated light to infinity, the microlens array comprising a plurality of lenslets, each lenslet aligned with a collimating channel of the monolithic collimator array; and a relay lens for focusing the light from the microlens array on a display panel.

LED backlight

An LED package for connection to a heat sink, the LED package comprising an LED structure having a first surface for emitting light and an opposite second surface, the LED structure comprising a light producing layer and a reflective layer, wherein the reflective layer is provided between the light producing layer and the second surface, whereby light is reflected by the reflective layer to the first surface, the first surface further comprising first and second electrical contacts. A frame overlaps the periphery of the first surface of the LED structure and has an aperture for emitting light from the first surface, the frame comprising first and second vias for connection to an external electrical circuit, the first and second vias are soldered to the first and second electrical contacts of the LED structure respectively.

Growing community of inventors

Roborough, United Kingdom

Keith Strickland