Patent ID: 8081177

Claim:
A display device responsive to a controller, comprising: (a) a display substrate defining an optical waveguide for transporting light carrying pixel information and having a refractive index at a selected control wavelength, a long dimension, a display area, and an optical power attenuation along the long dimension of less than 20 dB at the selected control wavelength; (b) a chiplet disposed over the display substrate, having a chiplet substrate separate from the display substrate, a photosensor responsive to light from the optical waveguide at the selected control wavelength for providing the pixel information, a selection circuit responsive to the pixel information for providing a control signal, and a drive circuit responsive to the control signal, wherein the chiplet is adapted to receive the transported light; (c) an optical transmitter for transmitting the pixel information as light at the selected control wavelength into the optical waveguide, wherein the optical transmitter transmits light in response to pixel information provided by the controller, and wherein the transmitted light is transported by the optical waveguide to the photosensor; and (d) a display optical element located in or over the display area responsive to the drive circuit for providing light.