Z-axis redundant display / multilayer display

A method of operating a display system comprising:

• providing a first visually transparent color display module, wherein the first visually transparent display module can be activated to display a first image and deactivated to a quiescent state;
• providing a second display module positioned in a spaced relationship to the first color display module in a stacked formation substantially along a Z-axis perpendicular to a display face of the first color display module, wherein the second display module can be selectively activated to display a second image and deactivated to a quiescent state, wherein the first and second display modules are not parallel to each other along their X and Y axes;
• and
• activating a display module to display its respective image, wherein when the second display module is activated to display the second image, the second image appears undistorted from the perspective of a viewer viewing the second image through the first display module when the first display module is in the quiescent state.

A display system comprising:

• a first visually transparent color display module having a first display face;
• and
• a second display module having a second display face;
• wherein the first and second display modules are positioned in a stacked formation substantially along a Z-axis perpendicular to the first display face, and wherein the first and second display faces are not aligned in the same X-Y plane;
• wherein each of the first and second display modules can be selectively activated to display a visual image or deactivated to a visually transparent quiescent state, and wherein when the second display module is activated to display its respective visual image the visual image displayed on the second display module appears undistorted from the perspective of a viewer viewing the visual image displayed on the second display module through the first display module when the first display module is in the visually transparent quiescent state.

A method of operating a display system comprising the steps of:

• providing a first visually transparent color display module, wherein the first visually transparent display module can be activated to display a first image and deactivated to a quiescent state;
• providing a second display module positioned in a spaced relationship to the first color display module in a stacked formation substantially along a Z-axis perpendicular to a display face of the first color display module, wherein the second display module can be selectively activated to display a second image and deactivated to a quiescent state, wherein the first and second display modules are not parallel to each other along their X and Y axes;
• and
• activating a display module to display its respective image, wherein when the second display module is activated to display the second image, the second image appears undistorted from the perspective of a viewer viewing the second image through the first display module when the first display module is the quiescent state
• further providing a third display module positioned in spaced relationship to the second display module in a stacked formation substantially along the Z-axis, wherein the third display module can be selectively activated to display a third image and deactivated to a quiescent state, wherein when the third display module is activated to display the third image, the third image appears undistorted from the perspective of the viewer when viewing the third image through the first and the second display modules when the first and second display modules are both in the quiescent state;
• wherein the first, second, and third images each contain information subject to first, second, and third security clearance credentials, respectively, and wherein the method of operating the display system further comprises:
• displaying the first image on the first display module only if the first security clearance credential is provided;
• displaying the second image on the second display module only if the second security clearance credential is provided;
• and
• displaying the third image on the third display module only if the third security clearance credential is provided.