摘要:
The present invention relates to a liquid crystal element wherein a liquid crystal having a liquid crystal molecule is held between two substrates.An information for aligning a liquid crystal molecule 103 in two or more directions phasedly or gradually by applying voltage is provided for two substrates 101 and 102. The information for aligning is provided for the liquid crystal molecule 103 through irregularities in a wave plate and rubbing formed on a substrate.
摘要:
The curing, by UV-light irradiation, of a sealing resin after injecting liquid crystal is made reliable. The display characteristics and the like of an in-plane electric field mode liquid crystal element are improved. To resolve these problems, the viscosity of the sealing resin is lowered, while bubbles mixed in the sealing resin are eliminated by ultrasonic waves, for example. Also, a means for eliminating ions and charges in the liquid crystal layer is devised.
摘要:
The present invention relates to a liquid crystal element wherein a liquid crystal having a liquid crystal molecule is held between two substrates. An information for aligning a liquid crystal molecule 103 in two or more directions phasedly or gradually by applying voltage is provided for two substrates 101 and 102. The information for aligning is provided for the liquid crystal molecule 103 through irregularities in a wave plate and rubbing formed on a substrate.
摘要:
The present invention is intended to eliminate any leakage of light which would occur, while in a black display state, due to a disordered alignment of liquid crystals around a pixel electrode in a liquid crystal device and to provide an improved contrast. The leakage of light around pixels can be suppressed and the contrast can be improved, for example, by rubbing the surface in a direction at an angle of 45 degrees with respect to any of the edges of a square pixel electrode 25 (a direction shown by the arrow 30) in a homeotropic type liquid crystal device.
摘要:
The present invention provides a display apparatus that can reduce a voltage irregularity and a brightness irregularity accompanied by making an enlarged and a high resolution type display apparatus. The display apparatus comprises plural pixel electrodes 5 arranged in a matrix, a switching element 3 connected with the pixel electrode, a scanning electrode 1, a picture signal electrode 2, an opposite electrode forming a capacitance with the pixel electrode 5, and further comprising; a storage capacitance 7 between the pixel electrode 5 and the scanning electrode 5 other than the scanning electrode 1 of the present line; more than two capacitance elements connected with the pixel electrode 5, including at least one of a gate-drain inter-electrode capacitance 4 of the switching element 3 and the storage capacitance 7, having a different value according to the distance from the power feeding edge of the scanning electrode 1; wherein, each capacitance in each pixel is set so that, when all capacitance connected with the pixel electrode 5 in a pixel is denoted as Ctot, a first capacitance ratio α gd=Cgd/Ctot increases continuously or in stages according to the distance from the power feeding edge of the scanning electrode 1, or a second capacitance ratio α st=Cst/Ctot is substantially constant.
摘要:
A method for driving a spatial light modulator is disclosed. The spatial light modulator includes a ferroelectric liquid crystal layer, a pair of conductive alignment films sandwiching the ferroelectric liquid crystal layer, a pair of electrodes for applying a voltage to the ferroelectric liquid crystal layer for changing the state of the ferroelectric liquid crystal layer, a photoconductive layer disposed between one of the pair of electrodes and one of the pair of conductive alignment films. The method includes the steps of: (a) applying a reset pulse to the pair of electrodes for resetting the ferroelectric liquid crystal layer to an initial state; (b) applying a first low voltage to the pair of electrodes during a first interval starting from the end of the step (a); (c) applying a writing pulse to the pair of electrodes after the lapse of the first interval while illuminating the photoconductive layer with writing light; (d) applying a second low voltage to the pair of electrodes during a second interval starting from the end of the step (c), the second interval being longer than the first interval; and (e) applying a next reset pulse to the pair of electrodes for resetting the ferroelectric liquid crystal layer to the initial state.
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:
An active matrix type display apparatus is provided that is inexpensive, has less crosstalk, has no flickering and a brightness gradient, and is suitable for a large screen size. The display apparatus includes a plurality of pixel electrodes arranged in a matrix, switching elements (TFTs) connected thereto, scanning electrodes, video signal electrodes, common electrodes, and a counter electrode, wherein liquid crystal, for example, is interposed between the pixel electrodes and the counter electrode. Assuming that a gate-drain capacitance is Cgd, a common electrode-pixel electrode capacitance is Cst, and the total capacitance connected to the pixel electrodes is Ctot in this configuration, αgd and αst represented by αgd=Cgd/Ctot, αst=Cst/Ctot are set to be different values between a portion close to feeding ends in a screen and a portion away therefrom.