摘要:
In an image display apparatus composed of a vacuum container having an electron source composed of multiple electron-emitting devices and a phosphor film that is irradiated with an electron from the electron source to emit light for display, an ion pump for exhausting the vacuum container through a communicating path by virtue of an action of a magnetism forming portion is arranged. A magnetic shielding member is arranged in a space where the ion pump and the electron-emitting devices are in communication with each other, whereby an influence of a magnetic field generated by the magnetism forming portion on the trajectory of an electron emitted from any one of the electron-emitting devices and display luminance unevenness incidental to the influence are removed.
摘要:
It is an object of the present invention to provide an image display apparatus in which the change over time of its electron source characteristics is small, and in which uneven brightness and color shift of an image is almost unnoticeable. To achieve this object, the present invention is directed to an image display apparatus containing an electron source substrate having a plurality of electron-emitting devices arrayed thereon, an image forming substrate arranged so as to face the electron source substrate and having a phosphor film and an anode electrode film, and magnetic field generating means, wherein a component parallel to the electron source substrate of a magnetic flux density of a magnetic field generated by the magnetic field generating means is not greater than 0.01 Tesla at any location of the electron-emitting devices.
摘要:
It is an object of the present invention to provide an image display apparatus in which the change over time of its electron source characteristics is small, and in which uneven brightness and color shift of an image is almost unnoticeable. To achieve this object, the present invention is directed to an image display apparatus containing an electron source substrate having a plurality of electron-emitting devices arrayed thereon, an image forming substrate arranged so as to face the electron source substrate and having a phosphor film and an anode electrode film, and magnetic field generating means, wherein a component parallel to the electron source substrate of a magnetic flux density of a magnetic field generated by the magnetic field generating means is not greater than 0.01 Tesla at any location of the electron-emitting devices.
摘要:
An image display apparatus for forming an image in an image displaying region provided with a vacuum chamber having an electron source substrate and an image forming substrate has an ion pump for evacuating the vacuum chamber by an action of a magnet-filed-forming portion through an aperture portion formed in the electron source substrate or an image displaying substrate, wherein the magnet-filed-forming portion is arranged so that a shadow formed by perpendicularly projecting the magnet-filed-forming portion onto the electron source substrate or the image forming substrate can be located outside the image displaying region.
摘要:
A liquid crystal device is constituted by a pair of electrode plates and a liquid crystal composition disposed between the electrode plates. One of the electrode plates comprises a light-transmissive substrate, a plurality of electrodes including principal electrodes and auxiliary electrodes supported on the light-transmissive substrate, a plurality of color filters disposed on the light-transmissive substrate and an insulating layer disposed on the color filters. Each auxiliary electrode is disposed between an associated principal electrode and the light-transmissive substrate so as to be electrically connected with at least a part of the associated principal electrode, and the auxiliary electrodes are disposed with spacings therebetween which are filled with the color filters and the insulating layer. The liquid crystal composition comprises at least one species of a fluorine-containing mesomorphic compound comprising a fluorocarbon terminal portion and a hydrocarbon terminal portion, the terminal portions being connected with a central core, and having smectic mesophase or latent smectic mesophase. The combination of the above specific cell structure and the specific liquid crystal composition is effective in improving display qualities (e.g., brightness and contrast) while minimizing a voltage waveform deformation.
摘要:
An electrode plate including a substrate, a plurality of stripe-shaped electrodes with gaps therebetween, and a flattening layer filling the gaps is produced through a process including the steps of: supplying a flowable polymeric material to a part of a surface of a smooth plate or substrate; applying the smooth plate and the substrate to each other so as to sandwich the polymeric material therebetween to provide a laminate; pressing the smooth plate and the substrate to each other, the pressing step including a preliminary pressure step wherein a pressed portion is moved from a first side of the laminate to a second side parallel to the first side under application of a first pressure and a main pressure step wherein a pressed portion is moved from one side of the laminate to the other side parallel to the one side under application of a second pressure larger than the first pressure to extend the polymeric material over at least a region including the stripe-shaped electrodes; curing the polymeric material by irradiation with a light to form a flattening layer; and removing the smooth plate from the laminate.
摘要:
A liquid crystal device having a pair of substrates opposed to each other at a predetermined distance from each other, and a liquid crystal enclosed between the pair of substrates. The pair of substrates are formed of different materials, and the difference between the thermal expansion coefficients of the substrates is set within the range of .+-.50% of the thermal expansion coefficient of one of the two substrates. Misalignment between the substrates is thereby prevented.
摘要:
A method for preparing an optical recording medium having a preformat comprises forming a recording layer containing a dye and photosensitive resin on a substrate, and then subjecting said recording layer to selective patterning, thereby forming a preformat.
摘要:
A chiral smectic liquid crystal color display device has plural non-overlapping color filters arranged at intervals such that 0.ltoreq.l/d.ltoreq.5 wherein l (.mu.m) is the interval between color filters and d (.mu.m) is the color filter film thickness.
摘要:
By use of specific color filters in Surface Stability Ferroelectric Liquid Crystal Device having color filters assembled therein, generation of alignment defect ocurring in the initial alignment control step could be avoided.