Light-producing high aperture ratio display having aligned tiles
AssigneeEastman Kodak Company
InventorsHenry R. Freidhoff, Giana M. Phelan
Life of this patent
Estimating the term…
Abstract
A high aperture ratio emissive tiled display comprised of a plurality of tiles including a substrate with discrete layers of integrated drive circuits, thin film transistors, circuit conductor layer and light-emitting pixel array wherein all the electronic circuitry is contained under the pixel array. Vertical interconnects are made between the drive circuits, circuits and pixel electrodes, as necessary, and can include vertical interconnections through the substrate. Large flat panel displays including at least two of said tiles are aligned to maintain pixel pitch from one tile to another to produce a seamless image.
Claims25
A high aperture ratio display comprising:
- a) at least two tiles having rows and columns of electric fieldactuable pixels which produce light from one surface of each tile, the pitch between each column of each tile being substantially the same and the pitch between each row of each tile being substantially the same, the tiles being arranged so that, when aligned, the pitch between adjacent pixels on adjacent tiles is the same so that when light is emitted from the surface of the tiles, it does not have intertile artifacts;
- b) a plurality of conductors disposed under the pixels of each tile and arranged to provide an electrical connection between the pixels of each tile;
- and
- c) circuits electrically connected to the conductors for producing electrical signals which cause the emission of light in the pixels of each tile to produce an image.
A high aperture ratio display comprising:
- a) a back plate;
- b) at least two tiles having rows and columns of electric field actuable pixels which produce light from one surface of each tile, the pitch between each column of each tile being substantially the same and the pitch between each row of each tile being substantially the same, the tiles being arranged so that, when aligned and mounted on the back plate, the pitch between adjacent pixels in adjacent tiles is the same so that when light is emitted from the surface of the tiles, it does not have intertile artifacts;
- c) a plurality of conductors connected to the pixels of each tile and a layer disposed on the non-emissive surface of each tile and formed with a plurality of thin film transistors connected to the conductors;
- and
- d) drive circuits fabricated on each tile or on the back plate and electrically connected to the thin film transistors for producing electrical signals for multiplex operation of the transistors to cause the electrical signals to be provided to the pixels to produce a video image.
Dependencies are inferred from the claim text.