摘要:
In a radiation image reading apparatus, a photostimulated phosphor member absorbs a portion of radiation energy transmitted through an object and stores the absorbed radiation energy as a latent image. An excitation light source irradiates excitation light on the photostimulated phosphor member which then emits photostimulated luminescence light which is received and converged by an image reading device, and the latter outputting, as image information, an electrical signal which is dependent on a light intensity of the photostimulated luminescence light. A source of erasing light, having a spectral distribution band positioned substantially in a visible light region and which is normally ON, includes a shutter which is selectively opened to irradiate the erasing light on the photostimulated phosphor during an erasure time and otherwise is closed. A moving mechanism relatively moves the excitation light source and the image reading device with respect to the photostimulated phosphor member, in a moving direction which is perpendicular to the main scan direction.
摘要:
A radiation image reading and erasing apparatus for deriving image signals in such a manner that an accelerated phosphorescence fluorescent material object, onto which radiation images are accumulated and stored, is scanned with an excitation light, and an accelerated phosphorescence fluorescent light, which is emitted from the accelerated phosphorescence fluorescent material object, is received. The apparatus is designed to obtain image data free of unwanted noises, and to occupy less space. The accelerated phosphorescence fluorescent material object is irradiated with a laser beam passing through a slit member to photomultipliers through reflection between sheets. The slit member may move with up-and-down motions. The sheets are taken-up or sent out by or from the associated take-up rollers, respectively, in accordance with the movement of slit member. The apparatus also has an erasing unit with a movable reflector to erase image information from the accelerated phosphorescence fluorescent material object.
摘要:
A functional sheet is brought into intimate contact with a front surface of a plasma display panel, and the functional sheet has a structure in which heat diffusion is superior to heat insulation between the plasma display panel and outside air. In addition, a display device includes a controller for controlling a drive voltage pulse train so that power consumption in a unit area in a light emission region within the screen is limited under a set value when one image is displayed.
摘要:
To maximize the efficiency of utilization of mother substrates used as material for the substrates in the flat display panel to form a display screen, the flat display panel includes a display screen formed by tetragonal first and second substrates. Four sides or opposite two sides forming a tetragonal peripheral edge of the first substrate are rendered to be substantially equal to those of the second substrate, and the first and second substrate are sandwiched together with one of the first and second substrates protruding in part outwardly from the peripheral edge of the other of the first and second substrates.
摘要:
A front sheet that is a layered film glued on a front face of a display panel includes a front portion made of plural layers having the same plane size and different functions and a rear portion having a plane size smaller than the front portion and larger than the screen, and the rear portion is put on the front face of the display panel.
摘要:
A rib structure for a display device includes a light-transmissive rib structure containing therein a material absorbent of visible light so that a visible light absorption distance is 40 to 1200 μm (the visible light absorption distance L (μm) means a distance such that visible light decreases to exp(−T/L) times less in connection to the travel distance T (μm), that is, visible light is absorbed by 1-exp(−T/L)).
摘要:
A plasma display panel includes a dielectric layer in which a filler for enhancing reflectance is dispersed. To increase luminescence efficiency, the filler consists of flakes oriented in parallel to the surface of the dielectric layer.
摘要:
A display panel device includes a front sheet that is glued on a front face of a plasma display panel. The front sheet includes a mesh made of a light shield member that has a blackened front surface and a plane size larger than a screen. A length between diagonal lattice points of the mesh is shorter than a cell pitch that is longer one of the cell pitches in the vertical direction and the horizontal direction of the screen. An arrangement direction of the mesh is inclined with respect to an arrangement direction of the cells in the screen.
摘要:
A gas discharge display device for displaying a color image by means of red, green and blue fluorescent substances, wherein a color to be reproduced by light-emission of the red, green and blue fluorescent substances for displaying a white pixel is set to be different from a white color intended for display, and a filter is disposed on a front side of the red, green and blue fluorescent substances for approximating a display color of the white pixel to the white color intended for display.
摘要:
A display panel device includes a front sheet that is glued on a front face of a plasma display panel. The front sheet includes a mesh made of a light shield member that has a blackened front surface and a plane size larger than a screen. A length between diagonal lattice points of the mesh is shorter than a cell pitch that is longer one of the cell pitches in the vertical direction and the horizontal direction of the screen. An arrangement direction of the mesh is inclined with respect to an arrangement direction of the cells in the screen.