US5287095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display device and its displaying method
Assignee: Hitachi Ltd
•
Filing: 1991-12-09
•
Granted: 1994-02-15
•
Expires: 2011-12-09
Abstract
Abstract A display device suitable for a high speed operation liquid crystal display device includes a matrix circuit having a plurality of signal lines, scanning lines disposed so as to intersect the signal lines and pixels provided at the positions corresponding to the intersections of the signal lines and the scanning lines; and a switching circuit for incorporating picture signals provided in correspondance to the signal lines, wherein the adjacent switching circuits are both turned on simultaneously.
Inventors
- 👤 Masaaki Kitazima
- 👤 Masahiro Eto
- 👤 Hiroshi Jitsukata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:44
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/36; G09G3/3611; G09G3/3685; G09G3/3688; G09G3/3648; G09G2310/00; G09G2310/02; G09G2310/0243; G09G2310/0251; G09G2310/0264; G09G2310/0297; G09G3/2007; G09G3/2011
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
115 words
A display device comprising: matrix circuit including a plurality of signal lines defining a plurality of columns, a plurality of scanning lines intersecting said signal lines thereby defining a plurality of points of intersection, and a pixel set up at a position corresponding to one of the points of intersection of said signal lines and said scanning lines; and a plurality of switch circuits provided in correspondence to said signal lines, adapted to incorporate picture signals, and having an ON state and an OFF state, wherein the ON operating time of each said switch circuits is longer than the ON operating time for any of said switch circuits preceding it within the plurality of columns.
Claim 2
Dependent Claim
115 words
A display device comprising: matrix circuit including a plurality of signal lines defining a plurality of columns, a plurality of scanning lines intersecting said signal lines thereby defining a plurality of points of intersection, and a pixel set up at a position corresponding to one of the points of intersection of said signal lines and said scanning lines; and a plurality of switch circuits provided in correspondence to said signal lines, adapted to incorporate picture signals, and having an ON state and an OFF state, wherein the ON operating time of each said switch circuits is longer than the ON operating time for any of said switch circuits preceding it within the plurality of columns.
Claim 3
Dependent Claim
23 words
The display device according to claim 1, wherein the ON operating times of said switch circuits are initiated at substantially the same time.
Claim 4
Dependent Claim
111 words
A display device comprising: a matrix circuit including a plurality of signal lines, a plurality of scanning lines intersecting said signal lines, and a plurality of pixels, each pixel set up at a position which corresponds to a point of intersection of one of said signal lines and one of said scanning lines; a plurality of switch circuits corresponding to said signal lines and adapted to incorporate picture signals; and a display control circuit generating control signals to be supplied to said switch circuits, wherein said display control circuit controls said switch circuits such that said switch circuits are turned ON at substantially the same time and turned OFF in order.
Claim 5
Dependent Claim
111 words
A display device comprising: a matrix circuit including a plurality of signal lines, a plurality of scanning lines intersecting said signal lines, and a plurality of pixels, each pixel set up at a position which corresponds to a point of intersection of one of said signal lines and one of said scanning lines; a plurality of switch circuits corresponding to said signal lines and adapted to incorporate picture signals; and a display control circuit generating control signals to be supplied to said switch circuits, wherein said display control circuit controls said switch circuits such that said switch circuits are turned ON at substantially the same time and turned OFF in order.
Claim 6
Dependent Claim
23 words
The display device according to claim 3 wherein said switch circuit includes a timing control circuit controlling timing generation of an ON-OFF signal.
Claim 7
Dependent Claim
19 words
The display device according to claim 3, wherein said switch circuits are turned OFF in a predetermined time interval.
Claim 8
Dependent Claim
59 words
The display device according to claim 3, wherein said switch circuits are divided into a plurality of switch circuit groups each having a plurality of switch circuits and said display control circuit controls said plurality of switch circuits such that said switch circuits included in each of said switch circuit groups are turned OFF at substantially the same time.
Claim 9
Dependent Claim
93 words
A display device comprising: a matrix circuit including a plurality of signal lines, a plurality of scanning lines intersecting said signal lines thereby defining a plurality of points of intersection, and a pixel set up at a position which corresponds to one of said plurality of points of intersection of said signal lines and said scanning lines; and a plurality of switch circuits corresponding to said signal lines and adapted to incorporate picture signals, wherein said plurality of switch circuits are turned ON at substantially the same time and turned OFF in order.
Claim 10
Dependent Claim
93 words
A display device comprising: a matrix circuit including a plurality of signal lines, a plurality of scanning lines intersecting said signal lines thereby defining a plurality of points of intersection, and a pixel set up at a position which corresponds to one of said plurality of points of intersection of said signal lines and said scanning lines; and a plurality of switch circuits corresponding to said signal lines and adapted to incorporate picture signals, wherein said plurality of switch circuits are turned ON at substantially the same time and turned OFF in order.
Claim 11
Dependent Claim
19 words
The display device according to claim 7, wherein said switch circuits are turned OFF in a predetermined time interval.
Claim 12
Dependent Claim
131 words
A display device comprising: a matrix circuit including a plurality of signal lines, a plurality of scanning lines intersecting said signal lines, and a pixel set up at a position which corresponds to a point of intersection of said signal lines and said scanning lines; a plurality of switch circuits for incorporating picture a signal provided corresponding to said signal lines; and a display control circuit generating control signals to be supplied to said switch circuits, wherein, within a period for selecting each said scanning lines, after setting all of said control signals at approximately the same time to a first voltage level, each of the control signals is sequentially changed at every constant time tH to a second voltage level in the period for selecting each of said scanning lines.
Claim 13
Dependent Claim
131 words
A display device comprising: a matrix circuit including a plurality of signal lines, a plurality of scanning lines intersecting said signal lines, and a pixel set up at a position which corresponds to a point of intersection of said signal lines and said scanning lines; a plurality of switch circuits for incorporating picture a signal provided corresponding to said signal lines; and a display control circuit generating control signals to be supplied to said switch circuits, wherein, within a period for selecting each said scanning lines, after setting all of said control signals at approximately the same time to a first voltage level, each of the control signals is sequentially changed at every constant time tH to a second voltage level in the period for selecting each of said scanning lines.
Claim 14
Dependent Claim
59 words
The display device according to claim 9, wherein said display control circuit at least inputs a first timing signal for setting all of said control signals approximately at the same time to one voltage level and a second periodic timing signal for changing each of the control signals to the other voltage level sequentially at every constant time tH.
Claim 15
Dependent Claim
83 words
A display method of a display device comprising: a matrix circuit including a plurality of signal lines, a plurality of scanning lines intersecting said signal lines, and a pixel set up at a position which corresponds to a point of intersection of said signal lines and said scanning lines; and a plurality of switch circuits corresponding to said signal lines and adapted to incorporate picture signals, wherein said switch circuits are turned ON at substantially the same time and turned OFF in order.
Claim 16
Dependent Claim
83 words
A display method of a display device comprising: a matrix circuit including a plurality of signal lines, a plurality of scanning lines intersecting said signal lines, and a pixel set up at a position which corresponds to a point of intersection of said signal lines and said scanning lines; and a plurality of switch circuits corresponding to said signal lines and adapted to incorporate picture signals, wherein said switch circuits are turned ON at substantially the same time and turned OFF in order.
Claim 17
Dependent Claim
23 words
A display method of a display device according to claim 11, wherein said switch circuits are turned OFF in a predetermined time interval.
Claim 18
Dependent Claim
154 words
A display device comprising: a matrix circuit including m columns of signal lines, n rows of scanning lines, each scanning line intersecting said m columns of signal lines, and m×n pixels located at positions corresponding to points of intersection of said signal lines and said scanning lines; a display signal output circuit including m switch circuits, each of which include a voltage input terminal connected to at least one of a plurality of information signal lines, a voltage output terminal connected to one of said signal lines and a control terminal, and having an ON state and an OFF state depending on one of a plurality of control signals input to said control terminal; a display control circuit generating said control signals; and a scanning circuit sequentially driving said matrix circuit one scanning line at a time, wherein said switch circuits are turned ON at substantially the same time and turned OFF in order.
Claim 19
Dependent Claim
154 words
A display device comprising: a matrix circuit including m columns of signal lines, n rows of scanning lines, each scanning line intersecting said m columns of signal lines, and m×n pixels located at positions corresponding to points of intersection of said signal lines and said scanning lines; a display signal output circuit including m switch circuits, each of which include a voltage input terminal connected to at least one of a plurality of information signal lines, a voltage output terminal connected to one of said signal lines and a control terminal, and having an ON state and an OFF state depending on one of a plurality of control signals input to said control terminal; a display control circuit generating said control signals; and a scanning circuit sequentially driving said matrix circuit one scanning line at a time, wherein said switch circuits are turned ON at substantially the same time and turned OFF in order.
Claim 20
Dependent Claim
21 words
The display device according to claim 13, wherein each of the pixels includes a thin film transistor and a liquid crystal.
Claim 21
Dependent Claim
30 words
The display device according to claim 13, wherein said matrix circuit, said display signal output circuit, said display control circuit, and said scanning circuit are formed on a same substrate.
Claim 22
Dependent Claim
47 words
The display device according to claim 13, wherein said switch circuits are divided into a plurality of switch circuit groups each having a plurality of switch circuits and the switch circuits included in each of said switch circuit groups are turned OFF at substantially the same time.
Claim 23
Dependent Claim
137 words
A display device comprising: a matrix circuit including a plurality of signal lines defining a plurality of columns, a plurality of scanning lines intersecting said signal lines thereby defining a plurality of points of intersection, and a pixel set up at a position corresponding to one of the points of intersection of said signal lines and said scanning lines; and a plurality of switch circuit groups each having a plurality of switch circuits each provided in correspondence to said signal lines, adapted to incorporate picture signals, and each having an ON state and an OFF state, wherein the ON operating times of the switch circuits included in each said switch circuit groups are longer than the ON operating times for the switch circuits in any of said switch circuit groups preceding it within the plurality of columns.
Claim 24
Dependent Claim
137 words
A display device comprising: a matrix circuit including a plurality of signal lines defining a plurality of columns, a plurality of scanning lines intersecting said signal lines thereby defining a plurality of points of intersection, and a pixel set up at a position corresponding to one of the points of intersection of said signal lines and said scanning lines; and a plurality of switch circuit groups each having a plurality of switch circuits each provided in correspondence to said signal lines, adapted to incorporate picture signals, and each having an ON state and an OFF state, wherein the ON operating times of the switch circuits included in each said switch circuit groups are longer than the ON operating times for the switch circuits in any of said switch circuit groups preceding it within the plurality of columns.
References Cited (Backward Citations)
JPS603698A
Cited
US4804951A
Cited
US4825202A
Cited
US4766430A
Cited
US4840462A
Cited
US4931787A
Cited
US5091722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-02-14 | 1997-08-16 | 1998-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-14 | 2001-08-16 | 2002-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-14 | 2005-08-16 | 2006-02-15 | $7700.00 | Window Closed / Lapsed |