Advertising display apparatus with precise rotary drive

A method of displaying an image from a film sheet formed by a plurality of independent images, each formed by spaced apart sets of a selected number of predetermined sized pixels interlaced with and spaced from one another to, in each set, form a common pattern with corresponding pixels of each said set correspondingly located and the corresponding pixels of each set disposed at selected dwell points along a predetermined rotary path adjacent a grid sheet formed with a pattern corresponding with the location and size of said selected number of predetermined sized pixels and including transparent apertures repetitively interlaced in said pattern corresponding with the correspondingly located pixel of each said set, said method comprising the steps of:

• providing a display apparatus including a housing with an illumination source, a platen having a window, an eccentric drive mounted on said housing, a step drive motor coupled to said eccentric drive, and a control device for advancing said drive motor incrementally for driving said eccentric drive in a predetermined rotary path;
• mounting said film sheet movably on said platen;
• anchoring said grid sheet on said housing over said platen;
• and
• connecting said film sheet to said eccentric drive, and actuating said step drive motor to drive said eccentric drive directly in one direction to sequentially advance said film sheet through a predetermined rotary path to sequentially align said grid sheet apertures with the corresponding pixels of said sets, and stopping said step drive motor at said dwell points to stop said film sheet with said corresponding pixels of said sets in alignment with said grid sheet apertures.

An advertising display apparatus for displaying a series of discrete images in sequence, and comprising:

• a housing including an illumination source;
• a platen overlying said illumination source and formed with a central window for projection of light from said source;
• a film sheet overlying said platen and formed by a plurality of independent images, each formed by spaced apart sets of a selected number of predetermined sized pixels interlaced with and spaced from one another to, in each set, form a common pattern with corresponding pixels of each said set correspondingly located and the corresponding pixels of each set disposed at selected dwell points along a predetermined rotary path, said film sheet being moveable through a predetermined path including selected dwell points;
• a grid sheet overlying said film sheet and formed with a pattern corresponding with the location and size of said selected number of predetermined sized pixels and including transparent apertures repetitively interlaced in said pattern corresponding with the correspondingly located pixel of each said set;
• and
• a driver directly coupled to said film sheet and operative to shift said film sheet through said predetermined rotary path to advance said sets of pixels to sequentially register with said grid sheet apertures.

An advertising display apparatus for displaying a series of discrete images in sequence, and comprising:

• a film sheet formed by a plurality of independent images, each formed by spaced apart sets of a selected number of predetermined sized pixels interlaced with and spaced from one another to, in each set, form a common pattern with corresponding pixels of each said set correspondingly located, said pattern defining a plurality of selected dwell points along a predetermined rotary path, and the corresponding pixels of each set disposed at said selected dwell points;
• a grid sheet formed with a pattern corresponding with the location and size of said selected number of predetermined sized pixels and including transparent apertures repetitively interlaced in said pattern corresponding with the correspondingly located pixel of each said set, said grid sheet cooperating with said film sheet in overlaying parallel proximal relation to form a masking mechanism for selectively aligning said apertures with said sets of pixels following said predetermined rotary path to sequentially form images responsive to relative rotary movement therebetween, said apparatus comprising:
• a housing including an anchor device for fixedly mounting said masking mechanism;
• an eccentric drive mounted on said housing, engageable with said masking mechanism, and operative to, upon rotation thereof in one direction, cause relative rotary movement between said grid sheet and said film sheet through said predetermined rotary path to register said apertures sequentially over said corresponding pixels;
• a step drive motor mounted on said housing and including a drive shaft advanceable in discrete precise steps, said drive shaft having an initial home position;
• a coupling device coupling said drive shaft directly to said eccentric drive for rotation in one direction to rotate said eccentric drive;
• and
• a control device for advancing said step drive motor in predetermined increments sufficient to cause said coupling device to incrementally and sequentially advance said eccentric drive in incremental amounts sufficient to cause relative rotary movement between said grid sheet and said film sheet through said predetermined rotary path to said dwell points to cause said coupling device to positively stop relative movement of said film and grid sheets at the respective said dwell points with said apertures aligned over the respective corresponding pixels of said sets.

An advertising display apparatus for displaying a series of discrete images in sequence, and comprising:

• a film sheet formed by a plurality of independent images, each formed by spaced apart sets of a selected number of predetermined sized pixels interlaced with and spaced from one another to, in each set, form a common pattern with corresponding pixels of each said set correspondingly located and the corresponding pixels of each set disposed at selected dwell points along a predetermined rotary path, said film sheet formed with a pair of mounting holes spaced apart a predetermined distance;
• a grid sheet formed with a pattern corresponding with the location and size of said selected number of predetermined sized pixels and including transparent apertures repetitively interlaced in said pattern corresponding with the correspondingly located pixel of each said set, and including anchor apertures disposed on its sides;
• a housing including an anchor device to engage said anchor apertures for fixedly mounting said grid sheet;
• a platen for supporting said film sheet;
• an eccentric drive including a cylindrical wheel formed with an outwardly facing surface and rotatable about a central axis, said wheel including an eccentrically located bearing cavity bored eccentric to said central axis a distance corresponding substantially to one-half the width of said pixels and a mounting pin centrally mounted rotatably in said bearing cavity and projecting therefrom to engage said film sheet and mounted on said housing, engageable with said film sheet, and operative to, upon rotation thereof in one direction, translate said film sheet through said predetermined rotary path to selectively align said apertures over the selected corresponding pixels of said sets;
• a step drive motor mounted on said housing and including a drive shaft advanceable in discrete precise steps, said drive shaft having an initial home position;
• a coupling device coupling said drive shaft directly to said eccentric drive for rotation in one direction to rotate said eccentric drive;
• and
• a control device for advancing said step drive motor in predetermined increments sufficient to cause said coupling device to incrementally and sequentially advance said eccentric drive in incremental amounts sufficient to shift said film sheet through said predetermined rotary path to cause said coupling device to positively stop said film sheet with said apertures aligned over the respective corresponding pixels of the respective said sets.