Corner reflector reflective image display
First Claim
Patent Images
1. An electrophoretic retro-reflective image display device, comprising:
- a front electrode;
an array of corner cube structures, each corner cube structure comprising at least three facets, each facet positioned substantially at an angle with respect to a remaining two facets such that an incoming light ray incident on a portion of a first facet is specularly reflected and the reflected light undergoes specular reflection on the remaining two facets such that an exiting light ray traverses substantially parallel to the incoming light ray;
a rear electrode;
a substrate supporting the array of corner cube structures; and
a plurality of channels positioned between the corner cube structure and the rear electrode;
wherein each of the plurality of channels is configured to communicate one or more electrophoretically mobile particles between the rear electrode and the front electrode through the corner cube structures.
3 Assignments
0 Petitions
Accused Products
Abstract
Corner cubes are well known retro-reflective devices. Corner cubes may be employed for high brightness in reflective image displays. An embodiment of a reflective image display is disclosed that employs corner cubes with metallized surfaces. Light reflection and absorption may be modulated with electrophoretically mobile light absorbing particles or electrofluidic systems. Display images may be created to convey information to a viewer.
191 Citations
8 Claims
-
1. An electrophoretic retro-reflective image display device, comprising:
-
a front electrode; an array of corner cube structures, each corner cube structure comprising at least three facets, each facet positioned substantially at an angle with respect to a remaining two facets such that an incoming light ray incident on a portion of a first facet is specularly reflected and the reflected light undergoes specular reflection on the remaining two facets such that an exiting light ray traverses substantially parallel to the incoming light ray; a rear electrode; a substrate supporting the array of corner cube structures; and a plurality of channels positioned between the corner cube structure and the rear electrode; wherein each of the plurality of channels is configured to communicate one or more electrophoretically mobile particles between the rear electrode and the front electrode through the corner cube structures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification