Patent EP0382687A2 successfully refreshed from Google Patents.
US5162931A
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Method of manufacturing flat panel backplanes including redundant gate lines and displays made thereby
Assignee: LG Display Co Ltd
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Filing: 1990-11-06
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Granted: 1992-11-10
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Expires: 2010-11-06
Abstract
Abstract Flat panel displays are provided with overlying interconnected and hence redundant bus lines to reduce fatal defects. The redundant, generally row lines are interconnected at least at two locations on a line and can be connected at each pixel to further reduce defects. The redundant row or gate line is formed by an overlying light shield line which preferably is of low resistivity and enhances the operation of the displays. The display can include subdivided subpixels and one defective subpixel is generally an acceptable non-fatal display defect, since the rest of the subpixels are still operative. The subpixels can be formed with common or redundant column bus lines.
Inventors
- 👤 Scott H. Holmberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:30
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/136; G02F1/1362
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
116 words
A method of manufacturing matrix display backplanes and displays therefrom, comprising: providing a substrate; forming a pattern of pixels on said substrate; forming a plurality of row and column intersecting activation bus lines including forming redundant pairs of each one of said plurality of row or column activation bus lines, including forming each said redundant pair of activation bus lines overlying but spaced from one another, interconnecting each redundant pair of activation bus lines one to another at least twice on each pair of lines; and coupling each said pixel to at least one of said row and one of said column intersecting bus lines to provide each pixel with a set of activation bus lines.
Claim 2
Independent Claim
116 words
A method of manufacturing matrix display backplanes and displays therefrom, comprising: providing a substrate; forming a pattern of pixels on said substrate; forming a plurality of row and column intersecting activation bus lines including forming redundant pairs of each one of said plurality of row or column activation bus lines, including forming each said redundant pair of activation bus lines overlying but spaced from one another, interconnecting each redundant pair of activation bus lines one to another at least twice on each pair of lines; and coupling each said pixel to at least one of said row and one of said column intersecting bus lines to provide each pixel with a set of activation bus lines.
Claim 3
Dependent Claim
25 words
The method as defined in claim 1 including interconnecting each of said redundant pair of activation bus lines at least at each of said pixels.
Claim 4
Dependent Claim
20 words
The method as defined in claim 1 including forming said overlying activation bus lines from a low resistivity aluminum alloy.
Claim 5
Dependent Claim
31 words
The method as defined in claim 1 including providing an active switching device for each pixel and coupling said pixel to said row and column intersecting bus lines with said device.
Claim 6
Dependent Claim
32 words
The method as defined in claim 4 including forming said redundant pair of activation bus lines overlying each said device to provide a light shield therefor and to enhance the operation thereof.
Claim 7
Dependent Claim
43 words
The method as defined in claim 4 including subdividing each of said pixels into at least two subpixels and coupling each said subpixel in pairs to at least one of said row and one of said column intersecting bus lines with said device.
Claim 8
Dependent Claim
40 words
The method as defined in claim 1 including subdividing each of said pixels into at least two subpixels and coupling each said subpixel in pairs to at least one of said row and one of said column intersecting bus lines.
Claim 9
Dependent Claim
22 words
The method as defined in claim 7 including providing a redundant pair of row activation bus lines for each of said subpixels.
Claim 10
Dependent Claim
22 words
The method as defined in claim 8 including interconnecting at least one pair of said row lines at each of said pixels.
Claim 11
Dependent Claim
102 words
A display backplane, comprising: a substrate; a pattern of pixels formed on said substrate; a plurality of row and column intersecting activation bus lines formed on said substrate including redundant pairs of each one of said plurality of row or column activation bus lines, each said redundant pair of activation bus lines formed overlying but spaced from one another, interconnected to one another at least twice on each pair of lines; and each said pixel coupled to at least one of said row and one of said column intersecting bus lines to provide each pixel with a set of activation bus lines.
Claim 12
Dependent Claim
102 words
A display backplane, comprising: a substrate; a pattern of pixels formed on said substrate; a plurality of row and column intersecting activation bus lines formed on said substrate including redundant pairs of each one of said plurality of row or column activation bus lines, each said redundant pair of activation bus lines formed overlying but spaced from one another, interconnected to one another at least twice on each pair of lines; and each said pixel coupled to at least one of said row and one of said column intersecting bus lines to provide each pixel with a set of activation bus lines.
Claim 13
Dependent Claim
25 words
The backplane as defined in claim 10 including each of said redundant pair of activation bus lines interconnected at least at each of said pixels.
Claim 14
Dependent Claim
20 words
The backplane as defined in claim 10 including said overlying activation bus lines formed from a low resistivity aluminum alloy.
Claim 15
Dependent Claim
29 words
The backplane as defined in claim 10 including an active switching device formed for each pixel, said device coupling said pixel to said row and column intersecting bus lines.
Claim 16
Dependent Claim
31 words
The backplane as defined in claim 13 including said redundant pair of activation bus lines formed overlying each device to provide a light shield therefor and to enhance the operation thereof.
Claim 17
Dependent Claim
43 words
The backplane as defined in claim 14 including each of said pixels subdivided into at least two subpixels and each said subpixel coupled in pairs to at least one of said row and one of said column intersecting bus lines with said device.
Claim 18
Dependent Claim
40 words
The backplane as defined in claim 10 including each of said pixels subdivided into at least two subpixels and each said subpixel coupled in pairs to at least one of said row and one of said column intersecting bus lines.
Claim 19
Dependent Claim
25 words
The backplane as defined in claim 16 including a redundant pair of row activation bus lines formed on said substrate for each of said subpixels.
Claim 20
Dependent Claim
22 words
The backplane as defined in claim 17 including at least one pair of said row lines interconnected at each of said pixels.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-10 | 1996-05-11 | 1996-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-10 | 2000-05-11 | 2000-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-10 | 2004-05-11 | 2004-11-10 | $7700.00 | Window Closed / Lapsed |