摘要:
A liquid crystal electro-optical device comprising a pair of substrates at least one of them is light-transmitting, electrodes being provided on said substrates, and an electro-optical modulating layer being supported by said pair of substrates, provided that said electro-optical modulating layer comprises an anti-ferroelectric liquid crystal material or a smectic liquid crystal material which exhibits anti-ferroelectricity, and a transparent material.
摘要:
An object of the present invention is to provide a dispersion type liquid crystal electro-optical device comprising liquid crystal droplets of uniform size without impairing the scattering properties. The present invention realizes a liquid crystal electro-optical device having excellent scattering properties which is achieved by increasing or decreasing the fraction of the organic constituent of the light-transmitting resin material without changing the amount of the liquid crystal and the number and density of the liquid crystal droplets so that the light scattering properties of the device may not be impaired, and thereby controlling the precipitation temperature of the liquid crystal droplets from the mixture to the vicinity of a temperature convenient in the fabrication, so that the solidification temperature of the resin material can be set at the vicinity of that temperature.
摘要:
An electro-optical liquid crystal device comprises a pair of glass substrates, a liquid crystal layer disposed between the substrates, a transparent electrode arrangement formed on inside surfaces of the substrates in order to apply an electric field to the liquid crystal layer to modulate the optical characteristics of the liquid crystal layer. The liquid crystal layer consists of a number of liquid crystal capsules dispersed in a carrier which includes a dielectric material having a high dielectric constant. The dielectric constant of the liquid crystal layer is adjusted by selecting the amount of the dielectric material contained in the liquid crystal layer.
摘要:
A liquid crystal display using a hydrophobic material as the material of resinous columns to orient the molecules of the liquid crystal parallel to the substrates. A hydrophilic material can also be used as the material of resinous columns to orient the molecules of the liquid crystal vertical to the substrates. The liquid crystal molecules are oriented horizontally by making the surface tension of the orientation film greater than the surface tension of the resinous columns. The liquid crystal molecules are oriented vertically by making the surface tension of the orientation film smaller than the surface tension of the resinous columns. A mixture of a liquid crystal material and an uncured resin is placed in a liquid crystal cell. The uncured resin is precipitated (deposited) out of the mixture. The molecules of the liquid crystal material are oriented. Then, the uncured resin is cured. Thereafter, an aging step for reorienting the molecules of the liquid crystal material is carried out. This prevents disturbance of the orientation around the resinous columns and leads to an improvement in the voltage holding ratio.
摘要:
A ferroelectric liquid crystal device is described. The device comprises a pair of substrates, an electrode arrangement formed on the inside surface of the substrates, an orientation control surface provided on the inside surface of one of said substrates, and a blended ferroelectric liquid crystal disposed between the substrates. By suitably preparing the liquid crystal, multi-micro-domains are formed in the liquid crystal. By virtue of the multi-micro-domains, the contrast ratio and the response speed are significantly improved.
摘要:
A process for fabricating a polymer-dispersed liquid crystal electro-optical device, which comprises: placing a mixture of a liquid crystal material having anisotropy in refractive index and a photocurable resin on a substrate equipped with an electrode; and curing the resin by irradiating a light to said mixture; wherein, said light has such a wavelength distribution that it covers the peak of light absorption of the portion which undergoes photo-curing reaction in said photocurable resin, provided that 90% or more of said light is distributed within a wavelength range .+-.20 nm from the wavelength of said light absorption peak of the resin.
摘要:
There is provided a film formation apparatus which is capable of forming an EL layer using an EL material with high purity. The EL material is purified by sublimation immediately before film formation in the film formation apparatus, to thereby remove oxygen, water, and another impurity, which are included in the EL material. Also, when film formation is performed using the EL material (high purity EL material) obtained by purifying with sublimation as an evaporation source, a high purity EL layer can be formed.
摘要:
A liquid crystal electro-optical device comprising a pair of substrates at least one of them is light-transmitting, electrodes being provided on said substrates, and an electro-optical modulating layer being supported by said pair of substrates, provided that said electro-optical modulating layer comprises an anti-ferroelectric liquid crystal material or a smectic liquid crystal material which exhibits anti-ferroelectricity, and a transparent material.
摘要:
Technology to reduce the manufacturing cost of a manufacturing process of a light emitting device is provided. The manufacturing cost of a device using a light emitting element can be reduced by using a multilayout process for forming a plurality of light emitting devices from a large-sized substrate. In particular, an existing line for manufacturing liquid crystal cells can be diverted to a process of encapsulating light emitting elements, which can greatly reduce the manufacturing cost including the investment in plant and equipment.
摘要:
There is provided a film formation apparatus which is capable of forming an EL layer using an EL material with high purity. The EL material is purified by sublimation immediately before film formation in the film formation apparatus, to thereby remove oxygen, water, and another impurity, which are included in the EL material. Also, when film formation is performed using the EL material (high purity EL material) obtained by purifying with sublimation as an evaporation source, a high purity EL layer can be formed.