Abstract:
The subject of the invention is an element having variable optical properties, comprising: (a) a system having electrically controlled variable light scattering, of the optical-valve or liquid-crystal system type, a suspended-particle system or a holographic or thermotropic system (a′) which is associated with (b) at least one absorbent element, absorbing at least in the visible range. It applies especially to the manufacture of backprojection screens.
Abstract:
A display substrate includes an insulation substrate, a gate line formed on the insulation substrate, a data line formed on the insulation substrate and crossing the gate line, a switching element formed on the insulation substrate and electrically connected to the gate line and the data line, and a pixel electrode formed on the insulation substrate. The pixel electrode is electrically connected to the switching element and includes a reflective electrode layer which reflects light and an absorption electrode layer which absorbs light.
Abstract:
A polarized-light splitting device includes a transmissive base member having a base portion and pattern of ridges on the base portion, and a non-transmissive layer on the ridges, wherein the non-transmissive layer includes a light reflecting portion, and a light absorbing portion.
Abstract:
A two-way trans-reflective display pixel (100) having two viewable sides (102, 104) is disclosed. The two-way trans-reflective display pixel has a first transparent layer (106), a second transparent layer (108), and light modulating medium (110) sandwiched between them. Both the first and second transparent layers (106, 108) have light reflectors (132, 136) and light absorbers (130, 134), which allow light entering from either viewable sides (102, 104) to partially reflected, partially absorbed, and partially transmitted, allowing an image to be viewable from both viewable sides (102, 104). A two-way trans-reflective display (402) comprising a plurality of two-way trans-reflective display pixels (100) and a transparent light source (412) is also disclosed. The transparent light source (412) provides color light, and enables an image from the two-way trans-reflective display (402) to be viewable in color from both first and second viewable sizes (418, 602).
Abstract:
The present invention relates to a display and a method for making the display comprising a substrate, an electrically modulated imaging layer, a first transparent conductive layer, and a dark light absorbing layer comprising a binder and a blend of nonconductive colorants and conductive colorants, wherein the conductive colorant is present in an amount less than 25% by weight.
Abstract:
An optical modulator using a thin plate capable of improving an S/N ratio of an output light is provided. The optical modulator including a thin plate 1 having an electrooptic effect and having a thickness of 20 μm or less, an optical waveguide 4 formed on a top or bottom surface of the thin plate, and a modulation electrode formed on the top surface of the thin plate to modulate light passing through the optical waveguide, wherein a stray light removing member 10 is disposed within the thin plate or in a vicinity of the thin plate.
Abstract:
A cholesteric liquid crystal polarizing device includes a substrate, an alignment layer, and a cholesteric liquid crystal layer including multiple domains, each of said domains skewed at an angle relative to a plane parallel to said substrate. The device may be used in combination with a liquid crystal cell to fabricate a reflective liquid crystal display (LCD). In various embodiments, the reflective LCD may be a normally white mode or normally black mode device. In another variation, the liquid crystal cell may include a 90null twisted nematic liquid crystal.
Abstract:
A spatial light modulator includes a plurality of spaced pixel elements. This gives rise to the possibility of reflections of light through inter-pixel gaps. These reflections may be reduced, improving the contrast, in some embodiments of the present invention, by providing a substrate beneath the pixel elements with a moth-eye like array of protrusions formed thereon. These protrusions tend to ameliorate the effects of inter-pixel light by causing multiple reflections which tend to dissipate such light.
Abstract:
An electro-optical display device which has linear polarizer, a 1/4-spectrum plate, a twisted nematic electro-optical cell disposed between the polarizer and the 1/4-spectrum plate, and a power source for applying an electric field to the cell.This device is for control, electrically, of the rotational direction of circular polarization and for electro-optical display of colors.
Abstract:
The present application provides a display panel and a display device. The display panel includes a liquid crystal layer, a light adjustment layer, and a reflection layer. The liquid crystal layer includes a plurality of liquid crystal molecules. The light adjustment layer includes a plurality of light adjustment portions, and each of the light adjustment portions and a corresponding one of the liquid crystal molecules include a contact interface. The reflection layer is disposed on a side of the liquid crystal layer and the light adjustment layer away from a display side and corresponds to the light adjustment portions. An incident light is totally reflected at the contact interface or passes through the contact interface.