Abstract:
PROBLEM TO BE SOLVED: To obtain a light bulb containing a twisted nematic liquid crystal(LC) layer in which the contrast and efficiency are improved and visibility of spacer posts in a black state is decreased by forming a reflection electrode with its edges parallel or perpendicular to the director axis of liquid crystal molecules when the director axis is projected on the surface of a back face. SOLUTION: A reflection pixel electrode 10 is formed on the lower side of a LC layer 4. The general alignment of the LC molecules is shown as a series of arrows from an arrow 2 on the upper face of the LC layer 4 to the arrow 3 on the lower face. The twisting orientation of the arrows from the upper part to the lower part represents the twist of the LC. The axis of the LC molecule and the rubbing direction on the lower substrate 6 are aligned along the edge of the pixel electrode 10 except for a small pretilt angle of the molecules on the back face. The polarization direction of the input polarized light is parallel or perpendicular to the LC director projected on the upper substrate. The LC director having specified depth in the LC is slightly tilted from the back face, which means that the LC director is oriented in the direction in which the refractive index for abnormal rays is minimum or maximum.
Abstract:
A video processing system (See Fig. 3, item 26) is provided for generating a foveated video display with sections having different resolutions (See Fig.3, display of location B). The system uses a network channel for communicating video images having video sections of different resolutions (See Fig. 3, item 46), and includes a video transmission system for processing and transmitting the received video images over the network channel. The system assigns a larger portion of the network channel's bandwidth to a video section with higher resolution. Further, the system includes a video receiving system for receiving and seamlessly combining the first and second video sections of different resolutions to form an output video image on a display device of a control system (See Fig. 3, items 48, 58 and 60). The control system can be operated to generate one or more video transmission system modules to control capturing, transmitting and processing of the video images (See Fig. 3, items 42 and 60).
Abstract:
Viewing angle characteristics of a liquid crystal display (LCD) (112) are improved by reducing the number of subpixels in an image with mid-tone luminance values. In a preferred embodiment, a first table of entries associating subpixel intensity values and subpixel luminance values for a LCD in at least one viewing angle direction is provided. A target intensity value is determined from the first table, corresponding to the average subpixel luminance over a small number of adjacent subpixels. A second table of entries associates the target intensity values with intensity values above and below the target. The adjacent subpixel intensity values are modified according to the second table, thereby reducing the number of subpixels with mid-tone luminance values. The subpixel data is preferably processed within a portion of an application-specific integrated circuit (ASIC) (303), contained within the display module (112-2).
Abstract:
Reflektierendes Lichtventil zum Bereitstellen eines verbesserten Dunkelzustands, wobei das reflektierende Lichtventil beinhaltet: ein transparentes Substrat; eine verdrehte, nematische Flüssigkristallschicht, die Flüssigkristallmoleküle mit einer Direktor-Achse aufweist; und eine Rückebene, die von dem transparenten Substrat durch die verdrehte nemantische Flüssigkristallschicht getrennt ist, wobei die Rückebene aus einem unteren Substrat und einer Ausrichtungsschicht besteht, wobei das untere Substrat reflektierende Elektroden mit Kanten beinhaltet, wobei die Direktor-Achse der Flüssigkristallschicht am unteren Substrat aufgrund der Reibrichtung der Ausrichtungsschicht in Bezug auf die Kanten der reflektierenden Elektroden parallel oder senkrecht ausgerichtet ist, wobei die reflektierenden Elektroden sägezahnförmige Kanten aufweisen, wobei die Segmente der einzelnen sägezahnförmigen Kanten jeder reflektierenden Elektrode unter den Winkeln 45° und 135° bezüglich der einfallenden Polarisation angeordnet sind.
Abstract:
Viewing angle characteristics of a liquid crystal display (LCD) are improved by reducing the number of subpixels in an image with mid-tone luminance values. In a preferred embodiment, a first table of entries associating subpixel intensity values and subpixel luminance values for a LCD in at least one viewing angle direction is provided. A target intensity value is determined from the first table, corresponding to the average subpixel luminance over a small number of adjacent subpixels. A second table of entries associates the target intensity values with intensity values above and below the target. The adjacent subpixel intensity values are modified according to the second table, thereby reducing the number of subpixels with mid-tone luminance values. The subpixel data is preferably processed within a portion of an application-specific integrated circuit (ASIC), contained within the display module.
Abstract:
Viewing angle characteristics of a liquid crystal display (LCD) are improved by reducing the number of subpixels in an image with mid-tone luminance values. In a preferred embodiment, a first table of entries associating subpixel intensity values and subpixel luminance values for a LCD in at least one viewing angle direction is provided. A target intensity value is determined from the first table, corresponding to the average subpixel luminance over a small number of adjacent subpixels. A second table of entries associates the target intensity values with intensity values above and below the target. The adjacent subpixel intensity values are modified according to the second table, thereby reducing the number of subpixels with mid-tone luminance values. The subpixel data is preferably processed within a portion of an application-specific integrated circuit (ASIC), contained within the display module.
Abstract:
Viewing angle characteristics of a liquid crystal display (LCD) (112) are improved by reducing the number of subpixels in an image with mid-tone luminance values. In a preferred embodiment, a first table of entries associating subpixel intensity values and subpixel luminance values for a LCD (112) in at least one viewing angle direction is provided. A second table associates the target intensity values with values above and below the target. The adjacent subpixel intensity values are modified according to the second table, thereby reducing the number of subpixels with mid-tone luminance values.
Abstract:
The light valve comprises transparent substrates and a rear plane separated from the substrate by a twisted, nematic liquid crystal (LC) layer with LC molecules with a director axis. The rear plane contains reflecting electrodes with edges parallel, or orthogonal to the director axis of the molecules, when the director axis is projected onto the rear plane surface. The molecules in the twisted, nematic layer are so oriented by transparent substrate rubbing as to bee oriented in a first direction, twisted from horizontal or vertical of the rear plane rubbing. Independent claims are included for a projection system.