Tiled flat-panel display with tile edges cut at an angle and tiles vertically shifted
US5903328A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1997 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Jun 16, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S345/903
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention is a tiled, seamless-type, flat-panel display with improved light efficiency. The display consists of tiles that are bonded together during assembly with an index-matching adhesive, as is commonly known in the art. Prior to bonding the tiles, however, their adjoining edges are cut at an angle. The pixel pitch or aperture spacing of the display is maintained in the horizontal direction, while the tiles are vertically shifted. The distance from the center of the pixel nearest the edge to the cut in the aperture mask is made greater than one-half of a pixel. When viewed from above, the aperture mask is continuous. The overlapping edges of the tile cuts are positioned between the apertures, so as to better conceal the edges. The resulting display configuration produces an approximate doubling of the space available for sealing the tiles and allows the increasing of the aperture size of each pixel edge, using the same, minimum gap between adjacent tiles, allowing for increased pixel density (resolution). Continuous polarizer sheets are applied to the tile assembly during bonding, thereby eliminating the possibility of producing visual tile seam defects due to indiv…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.