The present invention introduces a novel design for active matrix displays, utilizing both organic light-emitting diode (OLED) and thin-film electroluminescent technologies. In a first aspect there is provided a top-emitting OLED, including an optical interference contrast-enhancing stack that is placed on the top of the driving thin-film transistor, and which extendes to the entire pixel area to cover the reflecting parts of the pixel. In a second aspect, there is provided a bottom-emitting OIED wherein an optical interference contrast-enhancing stack is placed right under the driving thin-film transistor and, separately between the organic stack and the top electrode, typically a cathode. The optical interference contrast-enhancing stack suppresses light reflection from the thin-film transistor and the upper electrode. In the top emitting design, the optical interference contrast-enhancing stack is placed on the top of the thin-film transistor source and drain electrodes as well as on the top of the opaque bottom electrode. A method of achieving substantial uniformity across a display having multiple areas of optical interference members is also provided.

A semiconductor system for registration of spectra, color signals, color images and the like is comprised of a CCD or CMOS chip having a multiplicity of light sensitivity pixels with individual controllable Fabry-Perot interferometer color filters ahead of each pixel in the light path.

An optical transmitter and a method for generating a digital optical signal sequence are provided. The optical transmitter has light transmitters which are independently drivable and generate an optical signal for each of the bits of a digital electrical signal sequence that is to be converted into a digital optical signal sequence. The optical signals are combined and superposed into an optical signal path. A control device is provided for distributing the bits between the light transmitters.

An optical antenna collects, modifies and emits energy at light wavelengths. Linear conductors sized to correspond to the light wavelengths are used. Nonlinear junctions of small dimension are used to rectify an alternating waveform induced upon the conductors by the lightwave electromagnetic energy. The optical antenna and junctions are effective to produce harmonic energy at light wavelengths. The linear conductors may be comprised of carbon nanotubes that are attached to a substrate material, which may then be connected to an electrical port.

There is provided a laminated type photoelectric converter whose sensitivity is enhanced uniformly. In the photoelectric converter in which a photoelectric conversion device is laminated above a signal transfer device, the sensitivity is enhanced by providing bends on a lower electrode of the photoelectric conversion device and by confining light uniformly.