Imprinted micro-louver structure method
OwnerRonald Steven Cokinventor
Life of this patent
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Abstract
A method of making a micro-louver structure includes coating a curable layer on a surface and imprinting a pattern of micro-channels in the curable layer. The micro-channels have a greater depth than width and are spaced apart by a separation distance greater than the width. The curable layer is at least partially cured to form a cured layer. A light-absorbing material is coated over the cured layer and in the micro-channels and at least a portion of the light-absorbing material removed from the surface of the cured layer leaving at least a portion of the light-absorbing material in the micro-channels. The light-absorbing material is cured to form a light-absorbing structure in each micro-channel.
Claims21
A method of making a micro-louver structure, comprising:
- coating a curable layer on a surface;
- imprinting a pattern of micro-channels in the curable layer, wherein the imprinted micro-channels have a greater depth than width and are spaced apart by a separation distance greater than the width;
- at least partially curing the curable layer to form a cured layer;
- coating a light-absorbing material over the cured layer and in the imprinted micro-channels;
- removing at least a portion of the light-absorbing material from the surface of the cured layer and leaving at least a portion of the light-absorbing material in the imprinted micro-channels;
- and
- curing the light-absorbing material to form a light-absorbing structure in each imprinted micro-channel.
The method of claim 19, further including forming the two micro-louver structures spatially in phase or spatially 180 degrees out of phase.
A method of making a micro-structure for use with a display which permits orthogonal display viewing while inhibiting display viewing at larger angles, comprising:
- forming the micro-structure by:
- coating a curable layer on a surface;
- imprinting a pattern of micro-channels in the curable layer, wherein the imprinted micro-channels have a greater depth than width and are spaced apart by a separation distance greater than the width;
- at least partially curing the curable layer to form a cured layer;
- coating a light-absorbing material over the cured layer and in the imprinted micro-channels;
- removing at least a portion of the light-absorbing material from the surface of the cured layer and leaving at least a portion of the light-absorbing material in the imprinted micro-channels;
- and
- curing the light-absorbing material to form a light-absorbing structure in each imprinted micro-channel;
- and
- locating the micro-structure on a viewing surface of the display, whereby orthogonal display viewing is enabled while display viewing at larger angles is inhibited.
Dependencies are inferred from the claim text.