Abstract:
A display system and operating method in which ultraviolet radiation is produced and made to impinge on fluorescent phosphors (54) and visible through translucent protective layer (62). The ultraviolet radiation is generated by application of a potential between the cathode cells and annular anodes (46) spaced therefrom by a dielectric film (38) having apertures (44) therein aligned with the cathode cells. The assembly is hermetically sealed by a reflective backing panel (64) which defines a chamber (66) communicating with the cathode cells (22) and containing an inert gas. Display is initiated by application of a first potential across the anodes and cathodes. Ions produced in the gaseous medium impinge on the metallic coating (28) and sputter metal atoms therefrom which ionize under a second applied potential thereby to produce the ultraviolet radiation for conversion into visible radiation by the fluorescent phosphors (54).
Abstract:
A segmented display system (10) comprises a cathode plate (30) with slots (38) therein aligned with the segments (12, 14, 16, 18, 20, 22, 24) of a traditional numerical display pattern. Slots (38) are lined with a metallic lining (42) and act as cathode cells selectively energisable by external contacts (46-56). Overlying the surface of the cathode plate (30) is a display panel (80) transparent to UV-radiation and carrying on its surface segments of fluorescent material (78) aligned with the cathode cells and covered by a transparent protective film (88). The cathode plate is backed by an anode plate (62) spaced therefrom to form a hermetically sealed chamber (64) containing an inert gas. Ultraviolet radiation generated within the selectively energised cathode cells by application of a potential across the anode and the selected cell lining impinges on the corresponding fluorescent segment to activate the display.
Abstract:
PURPOSE:To compact a multicolor gas electric-discharge display element by placing a common electrode in the center of a thin outer case, and locating three kinds of display electrodes on the inner circumference wall of the said outer case. CONSTITUTION:An electric-discharge gas such as He or Ar is charged through an exhaust pipe 11, into a thin glass outer case 1 which has a circular main surfaces. Three kinds of display electrodes 2, 3 and 4, which are separately and selectively operated, are provided on the inner circumference of the case 1 so that they face to a central axis P of the case 1. A ribbon-like electrode 5 which is common to the electrodes 2, 3 and 4 is installed on the inner wall of a back- side main surface 12 of the case 1 so that the electrode 5 faces to each of the electrodes 2, 3 and 4 with given spaces formed between the electrode 5 and the electrodes 2, 3 and 4.
Abstract:
The device has an equal brightbness, protects an optic crosstalk between negative electrodes and improves an screen quaility and color purity. The device includes a front and opposite plates (20,21), a stripe shape color filter (24) which is formed on a front plate (20), a dielectric layer (25) which is formed with a number of circular optic passing holes (25a), a white color fluorescent layer (25), a stripe shape postitve electrode (22), an isolated wall (29), a stripe shape negative electrode (23) which is formed perpendicular to a positive electrode (22), and an auxiliary positive electrode (27) which is sequentially formed between opposite plate (21) and negatrve electrode (23).
Abstract:
The device includes cathode assembly with a plate having slots lined with a metallic lining and forming a number of cathode cells each forming a segment of the display. A display panel overlies one face of the cathode plate and supports on its surface a number of patches of fluorescent material aligned with the slots so as to be selectively impinged by u.v. radiation emitted from the slots upon energisation of selected cells. An anode is disposed on the side of the cathode plate remote from the display panel and forms with the cathode palte a chamber in communication with the slots. The chamber contains gaseous material ionisable by an electric field applied between the anode and selected cells.
Abstract:
The color plasma display panel (PDP) comprises a glass substrate (3) formed on a back substrate (1), the glass substrate (3) having discharge space (2), a common anode electrode (4) formed on the back substrate (1), a glass thin film (5) formed on the glass substrate (3), an inner surface of the thin film (5) being formed so that the discharge space is continued, three cathode electrodes (6,7,8) formed in the inside of the thin film (5) circularly, and R,G,B phosphor (10) formed on the lower part of the glass substrate (3), thereby improving the resolution of the panel and the pixel density.