Patent EP0318050A2 successfully refreshed from Google Patents.
EP0318050A2
Expired / Lapsed
EP
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Display apparatus
Assignee: Canon Inc
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Filing: 1988-11-28
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Granted: —
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Expires: 2008-11-28
Abstract
Abstract A display apparatus comprises (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so as to repeat a partial rewriting scanning drive comprising applying an scanning selection signal to only a part of the scanning electrodes forming the display picture area.
Inventors
- 👤 Hideo Kanno
- 👤 Hiroshi Inoue
- 👤 Atsushi Mizutome
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 08:48
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/36; G09G3/3611; G09G3/3622; G09G3/3629; G09G2310/00; G09G2310/02; G09G2310/0224; G09G2310/0227; G09G2310/04; G09G2310/06; G09G2310/061; G09G2320/00; G09G2320/02; G09G2320/0247; G09G2320/04; G09G2320/041
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
82 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so as to repeat a partial rewriting scanning drive comprising applying an scanning selection signal to only a part of the scanning electrodes forming the display picture area.
Claim 2
Dependent Claim
82 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so as to repeat a partial rewriting scanning drive comprising applying an scanning selection signal to only a part of the scanning electrodes forming the display picture area.
Claim 3
Dependent Claim
20 words
An apparatus according to Claim 1, which comprises means for repeating the partial rewriting scanning drive on different scanning electrodes.
Claim 4
Dependent Claim
28 words
An apparatus according to Claim 1, wherein said partial rewriting scanning drive is effected by movement of a cursor or mouse display moving in the display picture area.
Claim 5
Dependent Claim
23 words
An apparatus according to Claim 1, wherein said display panel comprises a ferroelectric liquid crystal disposed between the scanning electrodes and data electrodes.
Claim 6
Dependent Claim
107 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so as to scan-select the scanning electrodes with jumping of one or more scanning electrodes apart for one vertical scanning drive of the scanning electrodes constituting the whole picture area and scan-select the scanning electrodes without jumping for scanning drive of only a part of the scanning electrodes constituting the whole picture area.
Claim 7
Dependent Claim
107 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so as to scan-select the scanning electrodes with jumping of one or more scanning electrodes apart for one vertical scanning drive of the scanning electrodes constituting the whole picture area and scan-select the scanning electrodes without jumping for scanning drive of only a part of the scanning electrodes constituting the whole picture area.
Claim 8
Dependent Claim
23 words
An apparatus according to Claim 5, wherein said display panel comprises a ferroelectric liquid crystal disposed between the scanning electrodes and data electrodes.
Claim 9
Dependent Claim
123 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so as to scan-select the scanning electrodes with jumping of two or more scanning electrodes apart in one vertical scanning and scan-select non-adjacent scanning electrodes in at least two consecutive times of vertical scanning for scanning drive of the scanning electrodes constituting the whole picture area, and scan-select the scanning electrodes without jumping for scanning drive of only a part of the scanning electrodes constituting the whole picture area.
Claim 10
Dependent Claim
123 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so as to scan-select the scanning electrodes with jumping of two or more scanning electrodes apart in one vertical scanning and scan-select non-adjacent scanning electrodes in at least two consecutive times of vertical scanning for scanning drive of the scanning electrodes constituting the whole picture area, and scan-select the scanning electrodes without jumping for scanning drive of only a part of the scanning electrodes constituting the whole picture area.
Claim 11
Dependent Claim
23 words
An apparatus according to Claim 7, wherein said display panel comprises a ferroelectric liquid crystal disposed between the scanning electrodes and data electrodes.
Claim 12
Dependent Claim
113 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so that, when a part of image data stored in an image data storage memory is rewritten, one vertical scanning of the display picture area of the display panel is completed based on image data before the rewriting, and thereafter a scanning selection signal is applied to only scanning electrodes corresponding to the rewritten image data in the memory.
Claim 13
Dependent Claim
113 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so that, when a part of image data stored in an image data storage memory is rewritten, one vertical scanning of the display picture area of the display panel is completed based on image data before the rewriting, and thereafter a scanning selection signal is applied to only scanning electrodes corresponding to the rewritten image data in the memory.
Claim 14
Dependent Claim
35 words
An apparatus according to Claim 9, wherein one vertical scanning of the display picture area of the display panel is effected by scan-selecting the scanning electrodes with jumping of one or more scanning electrodes apart.
Claim 15
Dependent Claim
19 words
An apparatus according to Claim 9, wherein the scanning selection signal is applied to the scanning electrodes without jumping.
Claim 16
Dependent Claim
23 words
An apparatus according to Claim 9, wherein said display panel comprises a ferroelectric liquid crystal disposed between the scanning electrodes and data electrodes.
Claim 17
Dependent Claim
15 words
An apparatus according to Claim 9, wherein said one vertical scanning is one field scanning.
Claim 18
Dependent Claim
15 words
An apparatus according to claim 9, wherein said one vertical scanning is one frame scanning.
Claim 19
Dependent Claim
135 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so that, when a part of image data stored in an image data storage memory is rewritten, one vertical scanning of the display picture area of the display panel is completed based on image data before the rewriting, thereafter a scanning selection signal is applied to only scanning electrodes corresponding to the rewritten image data in the memory, and thereafter the scanning selection signal is applied to the scanning electrodes from a first scanning electrode in a subsequent one vertical scanning.
Claim 20
Dependent Claim
135 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so that, when a part of image data stored in an image data storage memory is rewritten, one vertical scanning of the display picture area of the display panel is completed based on image data before the rewriting, thereafter a scanning selection signal is applied to only scanning electrodes corresponding to the rewritten image data in the memory, and thereafter the scanning selection signal is applied to the scanning electrodes from a first scanning electrode in a subsequent one vertical scanning.
Claim 21
Dependent Claim
35 words
An apparatus according to Claim 15, wherein one vertical scanning of the display picture area of the display panel is effected by scan-selecting the scanning electrodes with jumping of one or more scanning electrodes apart.
Claim 22
Dependent Claim
28 words
An apparatus according to Claim 15, wherein the scanning selection signal is applied without jumping when applied to only the scanning electrodes corresponding to the rewritten image data.
Claim 23
Dependent Claim
23 words
An apparatus according to Claim 15, wherein said display panel comprises a ferroelectric liquid crystal disposed between the scanning electrodes and data electrodes.
Claim 24
Dependent Claim
15 words
An apparatus according to Claim 15, wherein said one vertical scanning is one field scanning.
Claim 25
Dependent Claim
15 words
An apparatus according to Claim 15, wherein said one vertical scanning is one frame scanning.
Claim 26
Dependent Claim
81 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; (c) a flag memory for setting one bit of data for each scanning electrode; and (d) means for reading out said bit data for the scanning electrodes constituting the display picture area of the display panel.
Claim 27
Dependent Claim
81 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; (c) a flag memory for setting one bit of data for each scanning electrode; and (d) means for reading out said bit data for the scanning electrodes constituting the display picture area of the display panel.
Claim 28
Dependent Claim
23 words
An apparatus according to Claim 21, wherein said display panel comprises a ferroelectric liquid crystal disposed between the scanning electrodes and data electrodes.
Claim 29
Dependent Claim
89 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; (c) a flag memory for setting one bit of ON or OFF data for each scanning electrode; and (d) control means for controlling the drive means so that a scanning selection signal is applied to only a scanning electrode corresponding to the ON data.
Claim 30
Dependent Claim
89 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; (c) a flag memory for setting one bit of ON or OFF data for each scanning electrode; and (d) control means for controlling the drive means so that a scanning selection signal is applied to only a scanning electrode corresponding to the ON data.
Claim 31
Dependent Claim
23 words
An apparatus according to Claim 23, wherein said display panel comprises a ferroelectric liquid crystal disposed between the scanning electrodes and data electrodes.
Claim 32
Dependent Claim
112 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so that the scanning electrodes are driven alternately in a first period wherein a scanning selection signal is applied to the scanning electrodes with jumping of one or more scanning electrodes apart in one vertical scanning, and a second period wherein a scanning selection signal is applied to the scanning electrodes without jumping to effect one vertical scanning.
Claim 33
Dependent Claim
112 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so that the scanning electrodes are driven alternately in a first period wherein a scanning selection signal is applied to the scanning electrodes with jumping of one or more scanning electrodes apart in one vertical scanning, and a second period wherein a scanning selection signal is applied to the scanning electrodes without jumping to effect one vertical scanning.
Claim 34
Dependent Claim
23 words
An apparatus according to Claim 25, wherein said display panel comprises a ferroelectric liquid crystal disposed between the scanning electrodes and data electrodes.
Claim 35
Dependent Claim
118 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so that a scanning selection signal is applied to only a part of the scanning electrodes constituting the display picture area to effect a partial rewriting scanning drive, and the partial rewriting scanning drive is interrupted when the number of application of the scanning selection signal has reached a prescribed number of times to start one vertical scanning of the whole display picture area.
Claim 36
Dependent Claim
118 words
A display apparatus, comprising: (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) drive means including a first means for driving the scanning electrodes and a second means for driving the data electrodes; and (c) control means for controlling the drive means so that a scanning selection signal is applied to only a part of the scanning electrodes constituting the display picture area to effect a partial rewriting scanning drive, and the partial rewriting scanning drive is interrupted when the number of application of the scanning selection signal has reached a prescribed number of times to start one vertical scanning of the whole display picture area.
Claim 37
Dependent Claim
23 words
An apparatus according to Claim 27, wherein said display panel comprises a ferroelectric liquid crystal disposed between the scanning electrodes and data electrodes.
References Cited (Backward Citations)
No citation records indexed.
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