Display tile structure using organic light emitting materials

An electronic display structure comprising;

• a substrate having a top surface and a bottom surface;
• a plurality of pixel structures, coupled to the top surface of the substrate, arranged in a matrix having rows and columns, and including a plurality of contacts corresponding to the rows and columns of the matrix for receiving electrical signals;
• wherein each pixel structure includes a distinct portion of display material physically separated from the display material of any other pixel structure;
• pixel driving circuitry coupled to the bottom surface of the substrate and adapted to provide a plurality of electrical signals which activate ones of the plurality of pixel structures in respective rows and columns of the matrix of pixel structures;
• a plurality of electrical contacts coupled to receive the plurality of electrical signals provided by the pixel driving circuitry, the plurality of electrical contacts having at least a one-to-one correspondence with the plurality of contacts of the matrix of pixel structures;
• and
• a plurality of vias for coupling the plurality of electrical contacts to the plurality of contacts of the matrix of pixel structures.

A tiled display structure comprising a plurality of image tiles, each tile comprising;

• a substrate having a top surface and a bottom surface;
• a plurality of pixel structures, coupled to the top surface of the substrate, arranged in a matrix having rows and columns and including a plurality of contacts for receiving electrical signals;
• wherein each pixel structure includes a distinct portion of display material physically separated from the display material of any other pixel structure;
• pixel driving circuitry coupled to the bottom surface of the substrate and adapted to provide a plurality of electrical signals which are conditioned to activate respective ones of the plurality of pixel structures;
• a plurality of electrical contacts coupled to receive the plurality of electrical signals provided by the pixel driving circuitry, the plurality of electrical contacts having at least a one-to-one correspondence with the plurality of contacts of the matrix of pixel structures;
• and
• a plurality of vias for coupling the plurality of electrical contacts to the plurality of contacts of the matrix of pixel structures;
• a rigid back panel and frame structure including a plurality of spring elements which hold the plurality of image tiles in position to form the tiled display structure;
• and
• a plurality of flexible connections which provide operational power to the plurality of image tiles.

A tiled display structure comprising a plurality of image tiles, each tile comprising;

• a substrate having a top surface and a bottom surface;
• a display section coupled to the top surface of the substrate, including a glass substrate and a plurality of pixel structures, each pixel structure defining a pixel area and having an active region which occupies a portion of the pixel area, the plurality of pixel structures being arranged in a matrix having rows and columns and including a plurality of contacts for receiving electrical signals;
• pixel driving circuitry coupled to the bottom surface of the substrate and adapted to provide a plurality of electrical signals to respective ones of the electrical contacts of the pixel structures to selectively activate the plurality of pixel structures;
• a transparent front panel having a plurality of rows and columns of dark-colored lines, the plurality of lines being substantially equal in width and defining transparent regions on the front panel for pixel positions in the tiled display device;
• and
• means for securing the glass substrate of the display sections of the plurality of tiles to the transparent front panel to align the active region of each pixel area on each tile with a respectively different one of the defined transparent regions on the front panel.

A tiled display structure comprising a plurality of image tiles, each tile comprising;

• a substrate having a top surface and a bottom surface;
• a display section coupled to the top surface of the substrate, including a glass substrate having a front surface and a back surface, the display section further including a plurality of pixel structures, coupled to the back surface of the glass substrate, each pixel structure defining a pixel area and having an active region which occupies a portion of the pixel area, the plurality of pixel structures being arranged in a matrix having rows and columns and including a plurality of contacts for receiving electrical signals, wherein the front surface of the glass substrate includes a plurality of dark-colored lines having a predetermined width which form a black matrix surrounding the active regions of the plurality of pixel structures;
• and
• pixel driving circuit coupled to the bottom surface of the substrate and adapted to provide a plurality of electrical signals to respective ones of the electrical contacts of the pixel structures to selectively activate the plurality of pixel structures.

A method of constructing an electronic display structure on a substrate having a top surface and a bottom surface comprising the steps of;

• forming a plurality of vias extending from the bottom surface of the substrate to the top surface of the substrate;
• forming a circuit board structure on the bottom surface of the substrate, the circuit board structure including a plurality of electrical contacts coupled to the plurality of vias;
• mounting pixel driving circuitry on the circuit board structure and coupling the driving circuitry to the plurality of vias to provide a plurality of electrical signals;
• forming a plurality of row electrodes on the top surface of the substrate;
• coupling each row electrode of the plurality of row electrodes to at least one of the vias to receive a respective row electrical signal of the plurality of electrical signals;
• forming a plurality of pixel regions each containing at least one distinct active pixel area, each distinct active pixel area composed of at least one layer of display material, wherein at least one of the distinct active pixel areas is on top of each row electrode;
• forming a plurality of transparent column electrodes over the distinct active pixel areas, wherein each distinct active pixel area is coupled to one transparent column electrode of the plurality of transparent column electrodes;
• and
• coupling each transparent column electrode of the plurality of transparent column electrodes to at least one of the vias to receive a respective column electrical sign of the plurality of electrical signals.

A method of constricting a electronic display tile including a substrate having a top surface, a bottom surface, a pair of horizontal edges, and a pair of vertical edges, the top surface of each substrate being covered by a plurality of pixel regions arranged in a matrix of rows and columns, comprising the steps of;

• forming a plurality of vias extending from the bottom surface of the substrate to the top surface of the substrate;
• forming a circuit board structure on the bottom surface of the substrate, the circuit board structure including a plurality of electrical contacts coupled to the plurality of vias;
• forming a plurality of row electrodes on the top surface of the substrate;
• coupling each row electrode of the plurality of row electrodes to at least one of the vias to receive a respective row electrical signal of the plurality of electrical signals;
• forming at least one distinct active pixel area in each of the plurality of pixel regions, wherein the distinct active pixel area includes at least one layer of display material and is coupled to one row electrode of the plurality of row electrodes;
• forming a plurality of transparent column electrodes over the plurality of distinct active pixel areas, wherein each distinct active pixel area is coupled to one transparent column electrode of the plurality of transparent column electrodes;
• and
• coupling each transparent column electrode of the plurality of transparent column electrodes to at least one of the vias to receive a respective column electrical signal of the plurality of electrical signals.

A tiled display structure comprising a plurality of image tiles, each tile comprising;

• a glass substrate having a front surface and a back surface;
• a display section coupled to the back surface of the glass substrate, including a plurality of pixel structures, each pixel structure defining a pixel area and having an active region which occupies a portion of the pixel area, the plurality of pixel structures being arranged in a matrix having rows and columns and including a plurality of contacts for receiving electrical signals;
• a passivation layer which covers each pixel structure in the display section and does not cover the plurality of contacts;
• and
• pixel driving circuitry coupled to the back surface of the glass substrate and arranged so as not to interfere with the active regions of the pixel structures, the pixel driving circuitry adapted to provide a plurality of electrical signals to respective ones of the electrical contacts of the pixel structures to selectively activate the plurality of pixel structures.

A tiled display structure having a plurality of display tiles comprising;

• a substrate having at least one edge;
• and
• a plurality of active pixel areas, each pixel area including a discrete portion of display material, the active pixel areas being arranged on the substrate in a matrix of rows and columns, each active pixel area substantially isolated, electrically and optically, from remaining active pixel areas and physically separated from an adjacent active pixel area by a determined distance;
• wherein active pixel areas nearest to the at least one edge have a separation from the at least one edge that is less than the predetermined distance;
• whereby, when the plurality of image tiles are fit together, the active pixel areas nearest to the at least one edge of one image tile are separated from an adjacent active pixel area of an adjacent image tile by the predetermined distance.