Abstract: A reflective display device includes a pixel structure (200) and a liquid crystal (210) containing a dye. The pixel structure (200) provides the liquid crystal (210) with a first tilt state and a second tilt state that are stable absent application of an electric field. In the first tilt state, the liquid crystal (210) is in an untwisted configuration. In the second tilt state, the liquid crystal (210) is in a twisted configuration, and the dye has an effective absorption that is higher than an effective absorption of the dye when the liquid crystal (210) is in the first tilt state.

Abstract: A reflective structure with transparent and semi-transparent transmission regions and includes a first transparent layer with a textured area, a reflective layer disposed below the first transparent layer and having a portion that is substantially conformal with at least a first portion of the textured area, and a second transparent layer disposed below the reflective layer and having a portion with a refractive index that is substantially equal to a refractive index of the first transparent layer. The transparent transmission region is configured to transmit a portion of light without substantial deviation, and the semi-transparent transmission region is configured to transmit another portion of the light from the first transparent layer with substantial deviation.

Abstract: A reflective structure with transparent and semi-transparent transmission regions and includes a first transparent layer with a textured area, a reflective layer disposed below the first transparent layer and having a portion that is substantially conformal with at least a first portion of the textured area, and a second transparent layer disposed below the reflective layer and having a portion with a refractive index that is substantially equal to a refractive index of the first transparent layer. The transparent transmission region is configured to transmit a portion of light without substantial deviation, and the semi-transparent transmission region is configured to transmit another portion of the light from the first transparent layer with substantial deviation.

Abstract: A reflective display device includes a pixel structure (200) and a liquid crystal (210) containing a dye. The pixel structure (200) provides the liquid crystal (210) with a first tilt state and a second tilt state that are stable absent application of an electric field. In the first tilt state, the liquid crystal (210) is in an untwisted configuration. In the second tilt state, the liquid crystal (210) is in a twisted configuration, and the dye has an effective absorption that is higher than an effective absorption of the dye when the liquid crystal (210) is in the first tilt state.

Abstract: A display element (10) comprises a light modulating layer (40) for absorbing light in a colour waveband, and a reflector layer (16), substantially parallel to the light modulating layer (40), for selectively reflecting light in the colour waveband, and transmitting at least some non-reflected light. One of the light modulating layer (40) and the reflector layer (16) is fixed and the other of the light modulating layer (40) and the reflector layer (16) is movable. The relative positions of the light modulating layer (40) and the reflector layer (16) can be interchanged. In a first state of the display element (10) the light modulating layer (40) is in front of the reflector layer (16) in an incident light path so as to absorb incident light in the colour waveband. In a second state of the display element (10) the reflector layer (16) is in front of the light modulating layer (40) in the incident light path so as to reflect incident light in the colour waveband.

Abstract: A reflective display device includes a first absorption layer configured to be modulated between being strongly and weakly absorbing of light within a first specified wavelength band and to absorb light weakly in a second specified wavelength band and a third specified wavelength band, a second absorption layer configured to be modulated between being strongly and weakly absorbing of light within the second specified wavelength band and to absorb light weakly within the third specified wavelength band, a third absorption layer configured to be modulated between being strongly and weakly absorbing of light within at least the third specified wavelength band, and at least one reflector arranged between two of the first, second, and third absorption layers, the at least one reflector being configured to reflect light strongly within one of the specified wavelength bands assigned to the absorption layers above the at least one reflector.

Abstract: A reflective display device includes a first absorption layer configured to be modulated between being strongly and weakly absorbing of light within a first specified wavelength band and to absorb light weakly in a second specified wavelength band and a third specified wavelength band, a second absorption layer configured to be modulated between being strongly and weakly absorbing of light within the second specified wavelength band and to absorb light weakly within the third specified wavelength band, a third absorption layer configured to be modulated between being strongly and weakly absorbing of light within at least the third specified wavelength band, and at least one reflector arranged between two of the first, second, and third absorption layers, the at least one reflector being configured to reflect light strongly within one of the specified wavelength bands assigned to the absorption layers above the at least one reflector.

Abstract: A display device includes a plurality of pixel components, each of which includes a first electro-optic layer positioned between a first pair of electrodes, in which the first electro-optic layer is configured to selectively absorb light in a first specified wavelength, a second electro-optic layer positioned between a second pair of electrodes, in which the second electro-optic layer is configured to selectively absorb light in a second specified wavelength band and to convert the absorbed light to at least a portion of the first specified wavelength band, in which the first electro-optic layer and the second electro-optic layer are arranged in a stack with respect to each other.

Abstract: Various reflective display devices are provided. In one embodiment, a reflective display device is provided that includes a first controllable light absorption layer capable of absorbing incident light in a first specified wavelength band and at least a second specified wavelength band and a first reflector behind the first absorption layer, which is capable of selectively reflecting at least some wavelengths of light within the first and second specified wavelength bands and substantially transmit light of other wavelengths. The reflective display device further includes a second controllable light absorption layer behind the selective reflector, which is capable of absorbing incident light in at least a third specified wavelength band and a second reflector behind the second layer, which is capable of reflecting at least some wavelengths of light within the third specified wavelength band.

Abstract: A method of manufacturing a composite stamp (24) for embossing comprises the steps of: (a) taking a master structure (10) having a conductive surface (16) and dielectric features (18) thereon; (b) depositing an opaque material on exposed regions of the conductive surface (16) to form an opaque mask (20); (c) coating the dielectric features (18) and opaque mask (20) with a fluid material (4) which is capable of being transformed to a form-retaining material; (d) causing or permitting the fluid material (4) to be transformed to a form-retaining material which is bonded to the opaque mask (20); and (e) removing the form-retaining material (4) and bonded opaque mask (20) from the master structure (10) to provide the composite stamp (24). Other aspect of the invention provide a composite stamp (24) and a composite structure (22) for making the composite stamp.