Patent EP0404022A2 successfully refreshed from Google Patents.
EP0404022A2
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Flat configuration image display apparatus and manufacturing method thereof
Assignee: Panasonic Holdings Corp
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Filing: 1990-06-18
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Granted: —
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Expires: 2010-06-18
Abstract
Abstract A flat configuration image display apparatus (30) comprising a electron beam generator equipped with cold cathodes (14) for generating a plurality of electrom beams in response to image signals fed from an image signal supply circuit, electron beam control electrodes (15) for selectively energizing the cold cathodes of the electron beam generator in accordance with a scanning line selection signal. The electron beam generator is further equipped with at least an array of n base electrodes (13) extending in vertical directions of a screen of the image display apparatus where n is an integer equal to or greater than 3, and a predetermined number of the cold cathodes (14) are disposed on each of the base electrodes (13). The image signals are independently applied through terminal leaders to the base electrodes (13), the terminal leaders being led up to outsides of a vacuum housing of the image display apparatus (30). The electron control electrodes (15) are divided into a plurality of groups each of which are responsive to the scanning line selection signal through a common bus.
Inventors
- 👤 Kaoru Tomii
- 👤 Akira Kaneko
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 04:53
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/02; H01J9/14; H01J9/148; G; G09; G09G; G09G3/00; G09G3/20; G09G3/22; H01J29/00; H01J29/02; H01J29/028; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/123; H01J31/125; H01J31/127; H01J9/18; H01J9/185; H01J2329/00; H01J2329/86; H01J2329/8625; H01J2329/863; H01J2329/8635
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
145 words
A flat configuration image display apparatus comprising electron beam generation means having cold cathodes for generating a plurality of electrom beams in response to image signals fed from an image signal supply circuit, electron beam control electrode means for selectively energizing said cold cathodes of said electron beam generation means in accordance with a scanning line selection signal from a selection signal generation circuit, and fluorescent film means having a fluorescent surface which radiates in response to the plurality of electron beams from said electron beam generation means, said electron beam generation means being equipped with at least an array of n base electrodes extending in vertical directions of a screen of said image display apparatus where n is an integer equal to or greater than 3, and said image signals being independently applied to said n base electrodes of said electron beam generation means.
Claim 2
Dependent Claim
145 words
A flat configuration image display apparatus comprising electron beam generation means having cold cathodes for generating a plurality of electrom beams in response to image signals fed from an image signal supply circuit, electron beam control electrode means for selectively energizing said cold cathodes of said electron beam generation means in accordance with a scanning line selection signal from a selection signal generation circuit, and fluorescent film means having a fluorescent surface which radiates in response to the plurality of electron beams from said electron beam generation means, said electron beam generation means being equipped with at least an array of n base electrodes extending in vertical directions of a screen of said image display apparatus where n is an integer equal to or greater than 3, and said image signals being independently applied to said n base electrodes of said electron beam generation means.
Claim 3
Dependent Claim
107 words
A flat configuration image display apparatus as claimed in claim 1, wherein said electron beam control electrode means comprises stripe-like electrodes whose number is equal to the number of the horizontal scanning lines for display of an image and which are successively arranged with a predetermined pitch in the vertical directions of said screen of said image display apparatus so as to be in cubically orthogonal relation to said n base electrodes of said electron beam generation means, said stripe-like electrodes being divided into groups each of which are connected to a common bus which receives said scanning line selection signal from said selection signal generation circuit.
Claim 4
Dependent Claim
36 words
A flat configuration image display apparatus as claimed in claim 1, wherein said n base electrodes are electrically led through terminal lead means up to an outside of a vacuum housing of said image display apparatus.
Claim 5
Dependent Claim
86 words
A flat configuration image display apparatus as claimed in claim 3, wherein said terminal lead means comprises a plurality of laminated members which are successively arranged with a predetermined pitch in correspondance with said base electrodes of said electron beam generation means in the horizontal directions of said screen of said image display apparatus and each of which comprises a plurality of conductive layers overlapped with insulating members being interposed therebetween, each of said plurality of conductive layers being electrically coupled to a corresponding base electrode.
Claim 6
Dependent Claim
49 words
A flat configuration image display apparatus as claimed in claim 4, wherein said plurality of conductive layers of each of said laminated members of said terminal lead means are shifted by predetermined lengths from each other in directions normal to the laminating directions of said plurality of conductive layers.
Claim 7
Independent Claim
131 words
A method of manufacturing a flat configuration image display apparatus, said method comprising the steps of: forming first terminal lead layer, made of a conductive material, on a surface of a substrate made of an insulating material; forming a first insulating layer to cover portions other than end portions of said first terminal lead layer; forming second terminal lead layer on said first insulating layer so that said second terminal lead layer are disposed on said first terminal lead layer with said first insulating layer being interposed therebetween; forming a second insulating layer to cover portions other than end portions of said second terminal lead layer; and forming electrode layers on said second insulating layer so that each of said electrode layers is electrically coupled to the corresponding terminal lead layer.
Claim 8
Independent Claim
131 words
A method of manufacturing a flat configuration image display apparatus, said method comprising the steps of: forming first terminal lead layer, made of a conductive material, on a surface of a substrate made of an insulating material; forming a first insulating layer to cover portions other than end portions of said first terminal lead layer; forming second terminal lead layer on said first insulating layer so that said second terminal lead layer are disposed on said first terminal lead layer with said first insulating layer being interposed therebetween; forming a second insulating layer to cover portions other than end portions of said second terminal lead layer; and forming electrode layers on said second insulating layer so that each of said electrode layers is electrically coupled to the corresponding terminal lead layer.
Claim 9
Dependent Claim
32 words
A method as claimed in claim 6, wherein said first and second terminal lead layers and said first and second insulating layers are respectively formed by means of a screen printing technique.
Claim 10
Dependent Claim
46 words
A method as claimed in claim 6, wherein each of said electrode layers is electrically coupled to the corresponding terminal lead layer through a through-hole formed in a portion of said first or second insulating layer between said electrode layer and the corresponding terminal lead layer.
Claim 11
Dependent Claim
42 words
A method as claimed in claim 8, wherein an electrically conductive material is provided in said through-hole formed in said portion of said first or second insulating layer so that the electrode layer is electrically coupled to the corresponding terminal lead layer.
Claim 12
Dependent Claim
133 words
A flat configuration image display apparatus comprising electron beam generation means having cold cathodes for generating a plurality of electrom beams in response to image signal fed from an image signal supply circuit; electron beam control electrode means for selectively energizing said cold cathodes of said electron beam generation means in accordance with a scanning line selection signal from a selection signal generation circuit; electron beam extraction means for extracting the plurality of electron beams from said electron beam generation means; focusing electrode means for focusing the electron beams extracted by said electron beam extraction means; and fluorescent film means having a fluorescent surface which radiates for display of an image on a screen of said image display apparatus in response to the plurality of electron beams focused by said focusing electrode means.
Claim 13
Dependent Claim
133 words
A flat configuration image display apparatus comprising electron beam generation means having cold cathodes for generating a plurality of electrom beams in response to image signal fed from an image signal supply circuit; electron beam control electrode means for selectively energizing said cold cathodes of said electron beam generation means in accordance with a scanning line selection signal from a selection signal generation circuit; electron beam extraction means for extracting the plurality of electron beams from said electron beam generation means; focusing electrode means for focusing the electron beams extracted by said electron beam extraction means; and fluorescent film means having a fluorescent surface which radiates for display of an image on a screen of said image display apparatus in response to the plurality of electron beams focused by said focusing electrode means.
Claim 14
Dependent Claim
38 words
A flat configuration image display apparatus as claimed in claim 10, wherein said electron beam generation means, said electron beam control electrode means and said electron beam extraction means are integrally constructed with insulating members being interposed therebetween.
Claim 15
Dependent Claim
70 words
A flat configuration image display apparatus as claimed in 10, wherein said electron beam generation means including a plurality of base electrodes each of which has a predetermined configuration extending in vertical directions of said screen of said image display apparatus and which are successively arranged with a predetermined pitch in horizontal directions of said screen of said image display apparatus, said cold cathodes being formed on said base electrodes.
Claim 16
Dependent Claim
39 words
A flat configuration image display apparatus as claimed in claim 10, wherein each of said electron beam control electrode means and said electron beam extraction means has through-holes formed in correspondance with the positions of said said cold cathodes.
Claim 17
Dependent Claim
38 words
A flat configuration image display apparatus as claimed in 10, wherein electron beams control electrode means comprises control electrodes which are successively arranged with a predetermined pitch in vertical directions of said screen of said image display apparatus.
Claim 18
Dependent Claim
36 words
A flat configuration image display apparatus as claimed in 10, wherein said focusing electrode means has through-holes each of which has a size corresponding to an area occupied by a predetermined number of said cold cathodes.
Claim 19
Dependent Claim
44 words
A flat configuration image display apparatus as claimed in 15, wherein said focusing electrode means is at portions other than said through-holes cnnected through insulating members to an optically transparent faceplate of said image display apparatus and further to said electron beam extraction means.
Claim 20
Dependent Claim
37 words
A flat configuration image display apparatus as claimed in 10, wherein said fluorescent film means includes black insulating portions each having a predetermined pattern, said fluorescent surface being provided at portions other than said black insulating portions.
References Cited (Backward Citations)
No citation records indexed.
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