EP0114713A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Display panel
Assignee: VIDCOM RENTSERVICE BV
•
Filing: 1984-01-19
•
Granted: —
•
Expires: 2004-01-19
Abstract
Abstract A display panel (1) comprising a plurality of adjacently arranged cathode ray tubes (12), so that respective display surfaces (13) together define a display surface (16) of said display panel and display discontinuities (14,15) in particular formed by spaces between the display surfaces of the adjacent cathode ray tubes are present, characterized in that to the outside surface of the face plate of each cathode ray tube light guides (21) are provided, so that the input opening (24) of each light guide is normal to a respective part of the face plate of a corresponding cathode ray tube and the output opening (25) of each light guide is normal to a respective part of a transformed panel display surface (32) determined by the output openings of all light guides, whereby said light guides are shaped so that the transformed panel surface display is substantially continuous.
Inventors
- 👤 Craig Allen Schreiber
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 19:59
CPC Classifications
H; H04; H04N; H04N21/00; H04N21/40; H04N21/43; H04N21/434; H04N5/00; H04N5/72; G; G06; G06F; G06F7/00; H04N11/00; H04N9/00; H04N9/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
136 words
A display panel comprising a plurality of adjacently arranged cathode ray tubes, so that respective display surfaces together define a display surface of said display panel and display discontinuities in particular formed by spaces between the display surfaces of the adjacent cathode ray tubes are present, characterized in that to the outside surface of the face plate of each cathode ray tube light guides are provided, so that the input opening of each light guide is normal to a respective part of the face plate of a corresponding cathode ray tube and the output opening of each light guide is normal to a respective part of a transformed panel display surface determined by the output openings of all light guides, whereby said light guides are shaped so that the transformed panel display surface is substantially continuous.
Claim 2
Dependent Claim
136 words
A display panel comprising a plurality of adjacently arranged cathode ray tubes, so that respective display surfaces together define a display surface of said display panel and display discontinuities in particular formed by spaces between the display surfaces of the adjacent cathode ray tubes are present, characterized in that to the outside surface of the face plate of each cathode ray tube light guides are provided, so that the input opening of each light guide is normal to a respective part of the face plate of a corresponding cathode ray tube and the output opening of each light guide is normal to a respective part of a transformed panel display surface determined by the output openings of all light guides, whereby said light guides are shaped so that the transformed panel display surface is substantially continuous.
Claim 3
Dependent Claim
18 words
A display panel according to claim 1, characterized in that the light guides are serpentine or elongated S-shaped.
Claim 4
Dependent Claim
54 words
A display panel according to claim 1 or claim 2, characterized in that said light guides are arranged radially from the center of the face plate towards the periphery of the face plate, whereby the thicknesses of said light guides along a radius increase in the direction of the periphery of the face plate.
Claim 5
Dependent Claim
92 words
A display panel according to claim 3, characterized in that the light guides to be provided along a radius from the center of the respective face plate to the periphery thereof are contained in an optical member having a wedge shaped longitudinal section,whereby one side of said optical member comprising the output openings of the light guides contained therein is linear and the other side comprising the input openings of the light guides contained therein is curved in conformity with the curvature of the face plate of the respective cathode ray tube.
Claim 6
Dependent Claim
116 words
A method of preparing a cathode ray tube to be used in the display panel according to claim 4, characterized in that a plurality of said wedge shaped optical members are attached to the outside surface of the cathode ray tube by means of an adhesive agent radially from the center of said cathode ray tube to the periphery thereof in a side by side relation and that the ends of said wedge shaped optical members forming a circle are cut so that they determine a rectangle covering at least a part of the display discontinuities surrounding the relative cathode ray tube when placed in adjacent relation with other cathode ray tubes of the display panel.
Claim 7
Dependent Claim
7 words
An optical member according to claim 4.
References Cited (Backward Citations)
DE1512126A1
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.