摘要:
In a display device according to a first aspect of the invention, luminance is not made substantially uniform over the entire display screen but rather imparted a luminance gradient such that luminance substantially monotonously decreases from the center of the screen towards the peripheral portion using a luminance gradient forming means, whereby power consumption is reduced compared to cases in which the entire screen shows substantially uniform luminance. In a second aspect of the invention, by optimizing gray level characteristics and thereby improving a viewer's impression of brightness, luminance gradient is made even less perceivable without increasing power consumption. These configurations provide large screen, low power consumption display devices.
摘要:
The invention provides an image display apparatus (1) comprising a lighting system (100); a LCD element (304); and an actuating means for varying the transmittance of the LCD element (304) according to image signals, wherein the LCD element (304) is designed such that when the angle of view with respect to a specified direction of a screen varies provided that the entire LCD element (304) is in a white display mode, transmittance varies such that it has peak values at viewing angles other than viewing angles in the vicinity of 0 degree, and wherein the lighting system (100) is designed such that the intensities of light beams emitted in the directions of the viewing angles in the vicinity of 0 degree are higher than the intensities of light beams emitted in the directions of the viewing angles at which the transmittance has a peak value.
摘要:
The present invention is directed to provide, for example, a lighting device and an image display, with which higher luminance and others can be achieved. In order to achieve this object, an image display of the present invention is formed in a lighting device (100) including a light source (102), a light guiding plate (103) that is disposed in such a manner that the light from the light source (102) is allowed to enter it through an end face (103a) thereof, and a reflecting surface (105) that is opposed to one major surface (103c) of the light guiding plate (103), wherein the one major surface (103c) of the light guiding plate (103) has a constant scattering layer (121) formed thereon which is adapted to transmit the incident light to scatter it at a predetermined rate, and the constant scattering layer (121) has a distribution and scattering structure (114) formed there on which is adapted to transmit the incident light to scatter it at a percentage that varies according to the distance from the above-mentioned light source (102).
摘要:
The present invention relates to a spatial light modulator used for an optical computing system or display, which comprises a photoconductive layer having a rectification function for receiving incident lights to generate charges, an electrode for accumulating the charges and a ferroelectric liquid crystal layer for modulating the incident light according to bias voltage change with the accumulated charges, wherein the ferroelectric liquid crystal layer is arranged between a pair of alignment layers made of polyimide represented by the general formula (I); ##STR1## wherein n is 2 or more, X is O, S, Se or Te, Y is an aromatic group or a substituted aromatic group, and Z is a group containing an aromatic group. In the spatial light modulator, any charges are not accumulated on the alignment layer with the driving time and thus a bistable memory condition can be realized.
摘要:
Pixel portions of a photoconductive layer each have a pin structure for providing a rectifying function and are substantially electrically isolated from one another by a highly resistant inter-pixel portion for preventing diffusion of electrical carriers. Data written into a liquid crystal layer by writing light is read out as an optical output by reading light. Reflecting films are provided on the pixel portions, respectively, and an output light blocking film is provided on the inter-pixel portion formed into a groove. The reflecting films and the output light blocking film are partially overlapped on each other so as to sufficiently block the reading light.
摘要:
The disclosed spatial light modulator includes a pair of facing transparent electrodes, and a light-modulating layer and a photoconductive layer provided between the transparent electrodes In the spatial light modulator, the light-modulating layer has different optical states depending on an applied charge amount. Specifically, the light-modulating layer has: a first optical state when the applied charge amount is a first threshold charge amount or more; a second optical state when the applied charge amount is a second threshold charge amount or less; and a spatially uniform intermediate state between the first optical state and the second optical state depending on the applied charge amount. Also, a driving method for such a spatial light modulator is disclosed.
摘要:
In a spatial light modulator used in a projection type display, holographic television set or the like and having a configuration of at least a photo-conductive layer with rectification and a ferroelectric liquid crystal layer provided between a pair of transparent electrodes and a side of the photo-conductive layer facing to a CRT, plural units of driving signals including at least an erasing pulse and a writing voltage period are applied between the transparent electrodes in one frame cycle of the CRT.
摘要:
The present invention relates to a spatial light modulator used for an optical computing system or display, which comprises a photoconductive layer having a rectification function for receiving incident lights to generate charges, an electrode for accumulating the charges and a ferroelectric liquid crystal layer for modulating the incident light according to bias voltage change with the accumulated charges, wherein the ferroelectric liquid crystal layer is arranged between a pair of alignment layers made of polyimide represented by the general formula (I); ##STR1## wherein n is 2 or more, X is S, Se or Te, Y is an aromatic group or a substituted aromatic group, and Z is a group containing an aromatic group. In the spatial light modulator, any charges are not accumulated on the alignment layer with the driving time and thus a bistable memory condition can be realized.
摘要:
A spatial light modulator (SLM) providing effects light blocking of even strong incident light without reducing the photoelectric conversion efficiency, and a projector using said SLM, are disclosed. Said projector uses an SLM comprising a readout side glass substrate comprising a readout side transparent electrode; a light modulation layer for modulating incident light according to an applied voltage; a reflective electrode comprising plural electrode elements for applying a voltage to the light modulation layer, and reflecting the light passed by the readout side glass substrate, the readout side transparent electrode, and light modulation layer; a light blocking layer having plural holes; a drive electrode comprising plural electrode elements electrically connected through the holes in the light blocking layer to a corresponding electrode element of the reflective electrode; and voltage applying means for applying a voltage corresponding to the brightness of each pixel in the input image to each electrode element of the drive electrode.
摘要:
Provided is a projection display including an illumination module. The illumination module includes a light source including a plurality of light emitting devices, a light guide panel having a top surface from which light is emitted, the top surface facing the optical modulator, and an edge surface on which light is incident, and an optical transport member for guiding light emitted from the light source to the edge surface of the light guide panel, the section of the optical transport member parallel to the edge surface increasing in size from the edge surface to the light source.