Abstract: An image display apparatus has an electron source on which a plurality of electron-emitting devices are arranged, an irradiated member which is arranged so as to be opposed to the electron source to form luminescent spots on different locations, respectively, in response to respective electron-emitting devices due to irradiation of electrons emitted from the electron-emitting devices, a deflector for deflecting trajectory of the electron emitted from the electron-emitting devices, and a correction circuit for correcting the light quantity of the luminescent spot. The correction circuit corrects a visual unevenness in luminance by making a correction in response to the interval between two luminescent spots and the interval between other luminescent spots adjacent to the two luminescent spots so as to improve a quality of an image.

Abstract: An image display apparatus includes a display panel having a plurality of electron emission portions that emit electrons, a plurality of light emitting regions positioned corresponding to the plurality of electron emission portions to emit light in response to irradiation of electrons from the electron emission portion thereon, and a shielding member provided between a substrate having the electron emission portions provided thereon and an opposing substrate having the light emitting regions thereon, and a correction circuit that corrects a pixel signal for modulating the electron emission portions. The shielding member shields electrons reflected from peripheral light emitting regions adjacent to a predetermined one of the light emitting regions to the predetermined light emitting region, and irradiates electrons from the shielding member to the predetermined light emitting region.

Abstract: Each of spacers which defines an interval between substrates composing an envelope is fixed to the substrates while their linearity is kept by the tension exerted therein. In the fixation, it is set such that a fixing point of each of the spacers is located between points on which the tension is exerted. Thus, even when the tension is released, the linearity is maintained, so that a displacement of each of the spacers can be prevented to kept a high assembly accuracy.

Abstract: An image display apparatus includes a display panel having a plurality of electron emission portions that emit electrons, a plurality of light emitting regions positioned corresponding to the plurality of electron emission portions to emit light in response to irradiation of electrons from the electron emission portion thereon, and a shielding member provided between a substrate having the electron emission portions provided thereon and an opposing substrate having the light emitting regions thereon, and a correction circuit that corrects a pixel signal for modulating the electron emission portions. The shielding member shields electrons reflected from peripheral light emitting regions adjacent to a predetermined one of the light emitting regions to the predetermined light emitting region, and irradiates electrons from the shielding member to the predetermined light emitting region.

Abstract: In order to prevent a spacer from being charged by using a plate shaped spacer covered with a high resistance film, the present invention is aimed at preventing irregular displacements of electron beams emitted from adjacent electron-emitting devices and suppressing displacements of impinging positions of the electron beams emitted from the adjacent electron-emitting devices even with a slight displacement of an installation position of the spacer. The spacer is disposed along a row directional wiring. The high resistance film is allowed to come into contact with a metal back and the row directional wiring to achieve electrical connection therebetween. Contact portions between the high resistance film of the spacer and the row directional wiring are provided at predetermined intervals.

Abstract: In order to prevent a spacer from being charged by using a plate shaped spacer covered with a high resistance film, the present invention is aimed at preventing irregular displacements of electron beams emitted from adjacent electron-emitting devices and suppressing displacements of impinging positions of the electron beams emitted from the adjacent electron-emitting devices even with a slight displacement of an installation position of the spacer. The spacer is disposed along a row directional wiring. The high resistance film is allowed to come into contact with a metal back and the row directional wiring to achieve electrical connection therebetween. Contact portions between the high resistance film of the spacer and the row directional wiring are provided at predetermined intervals.

Abstract: Each of spacers which defines an interval between substrates composing an envelope is fixed to the substrates while their linearity is kept by the tension exerted therein. In the fixation, it is set such that a fixing point of each of the spacers is located between points on which the tension is exerted. Thus, even when the tension is released, the linearity is maintained, so that a displacement of each of the spacers can be prevented to kept a high assembly accuracy.

Abstract: There is provided an image display apparatus comprising: a plurality of pixels each having an electron emitting element and a light emitting area to be irradiated by electrons from the electron emitting element; and a driving circuit for outputting a driving signal that drives the electron emitting element, wherein the plurality of the light emitting areas include a plurality of light emitting areas that respectively emit light emitting colors which differ each other, wherein the driving circuit includes a correction circuit for correcting an input signal, and wherein the correction circuit executes a correction to the input signal for a predetermined electron emitting element based on a value obtained by adjusting a value corresponding to a quantity of electrons emitted from an electron emitting element proximate to the predetermined electron emitting element by a value corresponding to the light emitting color of the light emitting area of the pixel to which the proximate electron emitting element belongs.

Abstract: Each of spacers which defines an interval between substrates composing an envelope is fixed to the substrates while their linearity is kept by the tension exerted therein. In the fixation, it is set such that a fixing point of each of the spacers is located between points on which the tension is exerted. Thus, even when the tension is released, the linearity is maintained, so that a displacement of each of the spacers can be prevented to kept a high assembly accuracy.

Abstract: A technique for correcting an electron trajectory and preventing positional deviation of a light emitting point in an image display apparatus is disclosed. The image display apparatus includes a rear plate which is provided with an electron source having electron-emitting devices, a plurality of wiring electrodes for supplying a drive signal to the electron-emitting devices, a face plate disposed to be opposed to the rear plate and a spacer which is arranged between the face plate and the rear plate and is provided with a spacer electrode on a contact surface which is in contact with the rear plate. And, this image display apparatus is unique in that a distance L1 between a first wiring electrode and a center of a first electron-emitting region and a distance L2 between a second wiring electrode and a center of a second electron-emitting region satisfy a relationship L1>L2.

Abstract: An image display apparatus includes a display panel having a plurality of electron emission portions that emit electrons, a plurality of light emitting regions positioned corresponding to the plurality of electron emission portions to emit light in response to irradiation of electrons from the electron emission portion thereon, and a shielding member provided between a substrate having the electron emission portions provided thereon and an opposing substrate having the light emitting regions thereon, and a correction circuit that corrects a pixel signal for modulating the electron emission portions. The shielding member shields electrons reflected from peripheral light emitting regions adjacent to a predetermined one of the light emitting regions to the predetermined light emitting region, and irradiates electrons from the shielding member to the predetermined light emitting region.

Abstract: An image display apparatus is provided, in which spacers are interposed between a face plate and a rear plate without affecting an image quality, and an anti-atmospheric pressure measure is taken for the interior of a display panel. The image display apparatus has a spacer, which is disposed in the interior of a vacuum container so as to abut against a first substrate and a second substrate, and comprises base material and a film having a resistance higher than a first electrode or a second electrode coating the base material, wherein 0.3S1?s1?0.003A or 0.3 S2?s2?0.

Abstract: In order to prevent a spacer from being charged by using a plate shaped spacer covered with a high resistance film, the present invention is aimed at preventing irregular displacements of electron beams emitted from adjacent electron-emitting devices and suppressing displacements of impinging positions of the electron beams emitted from the adjacent electron-emitting devices even with a slight displacement of an installation position of the spacer. The spacer is disposed along a row directional wiring. The high resistance film is allowed to come into contact with a metal back and the row directional wiring to achieve electrical connection therebetween. Contact portions between the high resistance film of the spacer and the row directional wiring are provided at predetermined intervals.

Abstract: In a manufacturing process of an image forming apparatus (electron beam device) using electron emission elements, particularly, surface conduction type electron emission elements, wirings on an electron source substrate on which the wirings and element electrodes are formed are opposite to electrodes for a face plate, and a given voltage is applied between the wirings and the electrodes to thereby generate a discharge phenomenon in advance, thus removing a protrusion or the like. In this way, when an electric field applying process is conducted on the electron source substrate, a factor such as a protrusion in an electron source which induces a discharge phenomenon in driving an electron beam device represented by an image forming apparatus is removed, thus realizing an image forming apparatus excellent in display characteristic with no defective pixel even in image display for a long period of time.

Abstract: Each of spacers which defines an interval between substrates composing an envelope is fixed to the substrates while their linearity is kept by the tension exerted therein. In the fixation, it is set such that a fixing point of each of the spacers is located between points on which the tension is exerted. Thus, even when the tension is released, the linearity is maintained, so that a displacement of each of the spacers can be prevented to kept a high assembly accuracy.

Abstract: A communication network system comprises ring systems (A, B, C, D) and a common node device 20 that is connected in common to ring circuits (5A, 5B, 5C, 5D) of each of the ring systems (A, B, C, D) and that gathers data from each of the ring circuits (5A, 5B, 5C, 5D) relaying it to a relay circuit 30. The common node device 20 accommodates virtual channel paths within all the ring circuits (5A, 5B, 5C, 5D) by means of a virtual path switching path. The relay transmission is realized by means of virtual path switching control that uses this common node device 20 and virtual channel switching control that uses each of the ring nodes within the ring circuits (5A, 5B, 5C, 5D).

Abstract: A technique for correcting an electron trajectory and preventing positional deviation of a light emitting point in an image display apparatus is disclosed. The image display apparatus includes a rear plate which is provided with an electron source having electron-emitting devices, a plurality of wiring electrodes for supplying a drive signal to the electron-emitting devices, a face plate disposed to be opposed to the rear plate and a spacer which is arranged between the face plate and the rear plate and is provided with a spacer electrode on a contact surface which is in contact with the rear plate. And, this image display apparatus is unique in that a distance L1 between a first wiring electrode and a center of a first electron-emitting region and a distance L2 between a second wiring electrode and a center of a second electron-emitting region satisfy a relationship L1>L2.

Abstract: An audio disk/memory disk player. At the time of playing a disk, TOC information in a lead-in area will be read out first after loading of the disk is complete. The player determines whether the disk to be played is an audio disk (CD) or a memory disk (CD-ROM) based on identifying information in the TOC information. If the disk is the memory disk, the operation goes directly to a pause mode so that upon reception of a read command transition to the searching for a designated address is promptly executed to quickly read out the desired data. Only when the disk being played is the audio disk, the audio system is changed to the audio disk from another source, thus permitting a user to view a map while listening to the previous source. When playing for an area having a series of group information recorded is complete in special play mode, the mode is quickly changed to the pause mode in the case of the memory disk to wait for the read command, thus ensuring quick reading of designated map data.

Abstract: A disk selection control device for a multidisk player, in which disk content identifying information and TOC information of the disks are preliminarily stored correspondingly with each other, and the disk content identifying information and disk holding position information of the disks are stored correspondingly with each other according to the TOC information when it is read-out. By inputting the disk content identifying information, the disk holding position information corresponding to the input disk content identifying information can be obtained from the above correspondency therebetween to thereby select a desired disk.

Abstract: An on-vehicle electronic apparatus is provided with: a main body unit fixed with respect to a vehicle and having a first clock generation device for generating a clock for synchronization in the main body unit, a first shift register for taking in data and a first controller for controlling transmission and reception of the data at the main body unit; and an operation and display unit detachably mounted on the main body unit and having a second clock generation device for generating a clock for synchronization in the operation and display unit, a second shift register for taking in data and a second controller for controlling transmission and reception of the data at the operation and display unit, wherein the transmission and reception of the data between the main body unit and the operation and display unit are established through just two transmission lines, one of which is for transmission from the operation and display unit to the main body unit and the other of which is for transmission from the main bo