Patent EP0197551A2 successfully refreshed from Google Patents.
EP0197551A2
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EP
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A display device and a display method
Assignee: Panasonic Holdings Corp
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Filing: 1986-04-09
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Granted: —
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Expires: 2006-04-09
Abstract
Abstract The present invention generally relates to a display device which is comprised of a first group of bus lines (A1-C2) for transmitting a display signal, a second group of bus lines (V1-Vm) for transmitting a scan signal and a display unit formed at an intersecting point between the first bus line and the second bus line. The first group and the second group of bus lines are formed in matrix. The display device further includes switching elements (20-31) which are selectively opened or closed, and provided between the bus lines in the first group or in the second group 1. Accordingly, even when it happens that any one of the bus lines is broken, a signal can be supplied from the other bus line to the broken bus line through this switching element.
Inventors
- 👤 Seiichi Nagata
- 👤 Sadayoshi Hotta
- 👤 Etsuya Takeda
- 👤 Yutaka Miyata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 08:55
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/30; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/36; G09G3/3611; G09G3/3674; G09G3/3677; G09G3/3648; G09G3/3659; G09G3/3685; G09G3/3688; G09G2310/00; G09G2310/02; G09G2310/0264; G09G2310/0297; G09G2330/00; G09G2330/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
79 words
A display device which comprises: a first group of bus lines for transmitting display signals; a second group of bus lines for transmitting scanning signals; display units so formed as to correspond to each intersecting point between said bus lines of said first and said second groups of bus lines; and switch means which can selectively be opened or closed and, is provided between bus lines of at least one of said first and second groups of bus lines.
Claim 2
Dependent Claim
79 words
A display device which comprises: a first group of bus lines for transmitting display signals; a second group of bus lines for transmitting scanning signals; display units so formed as to correspond to each intersecting point between said bus lines of said first and said second groups of bus lines; and switch means which can selectively be opened or closed and, is provided between bus lines of at least one of said first and second groups of bus lines.
Claim 3
Dependent Claim
65 words
A display device as claimed in Claim 1, further comprising switch means which is selectively opened or closed and is provided at one end of a line between a particular bus line and the other bus line so that a signal transmitted through the other end of said particular bus line can be transmitted from said particular bus line to said the other bus line.
Claim 4
Dependent Claim
20 words
A display device as claimed in Claim 1 or Claim 2, wherein said switch means is an insulative gate-type transistor.
Claim 5
Dependent Claim
24 words
.A display device as claimed in any one of Claims 1, 2 and 3, wherein said switch means is composed of an complementary transistors.
Claim 6
Dependent Claim
28 words
5 . A display device as claimed in any one of Claims 1, 2, 3 and 4, wherein said switch means is composed of a thin film transistor.
Claim 7
Dependent Claim
28 words
A display device as claimed in any one of Claims 1, 2, 3, 4 and 5, wherein said switch means is composed of an interpolation-type thin film transistor.
Claim 8
Dependent Claim
42 words
A display device as claimed in any one of Claims 1, 2, 3, 4, 5 and 6, wherein said switch means is made of the same material as that of the thin film transistor which is a component of said display unit.
Claim 9
Dependent Claim
134 words
A display method for transmitting a display signal to a first group of bus lines and a scanning signal to a second group of bus lines so that display units so provided as to correspond to an intersecting point between said bus lines of said first and said second groups of bus lines is driven by said display signal and said scanning signal, in which switch means provided between a particular bus line and the other bus line is controlled to be opened or closed, so that a signal transmitted through one end of said particular bus line can be transmitted from said particular bus line to said the other bus line, characterized in that the signal is applied simultaneously in duplicate at least to a plurality of bus lines in the same group.
Claim 10
Dependent Claim
134 words
A display method for transmitting a display signal to a first group of bus lines and a scanning signal to a second group of bus lines so that display units so provided as to correspond to an intersecting point between said bus lines of said first and said second groups of bus lines is driven by said display signal and said scanning signal, in which switch means provided between a particular bus line and the other bus line is controlled to be opened or closed, so that a signal transmitted through one end of said particular bus line can be transmitted from said particular bus line to said the other bus line, characterized in that the signal is applied simultaneously in duplicate at least to a plurality of bus lines in the same group.
Claim 11
Dependent Claim
19 words
A display method as claimed in Claim 8, wherein said plurality of bus lines are adjacent to each other.
Claim 12
Dependent Claim
43 words
A display method as claimed in Claim 8, in which, by dividing display signals into N groups (n>2) and dividing 1 scanning time period into N, a display signal in each group is transmitted every 1/N scanning time period to a display part.
Claim 13
Dependent Claim
26 words
A display method as claimed in any one of claims 8, 9 and 10, wherein said switch means is composed of an interpolation-type thin film transistor.
References Cited (Backward Citations)
No citation records indexed.
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