US5844534A
Expired / Lapsed
US
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Liquid crystal display apparatus
Assignee: Japan Display Central Inc
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Filing: 1994-12-28
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Granted: 1998-12-01
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Expires: 2014-12-28
Abstract
Abstract A liquid crystal display apparatus comprises a plurality of signal lines and scanning lines which are arranged so as to extend in directions orthogonal to each other and cross each other at cross portions, a plurality of pixel electrodes respectively provided at the cross portions so as to form a matrix arrangement, and a plurality of thin film transistors respectively provided between the pixel electrodes and the signal lines and respectively having gates connected with the scanning lines, for functioning as switches for writing image signals which are supplied from the signal lines into the pixel electrodes, picture change detecting means for detecting a change between still and moving pictures in a direction of time-axis included in a display image, and gate signal change means for changing the number of interlaced scanning lines in accordance with a change component detected in the picture change detecting means.
Inventors
- 👤 Haruhiko Okumura
- 👤 Hisao Fujiwara
- 👤 Go Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:39
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/36; G09G3/3611; G09G3/3648; G09G2310/00; G09G2310/02; G09G2310/0224; G09G2310/0227; G09G2330/00; G09G2330/02; G09G2330/021; G09G3/2007; G09G3/2018
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
128 words
A driving method used in a display apparatus for displaying an image by means of A pixels or pieces of scanning lines which are respectively provided with selection switch elements, the method comprising the steps of: dividing a sheet of frame image into n sub-fields which are displayed sequentially along a time axis, each of the sub-fields being basically formed of A/n×m pixels or pieces of the scanning lines (where A is a positive integer, n is a positive integer which is equal to 3 or more and is equal to A or less, and m is a positive integer equal to n or less); and a step of changing one of an interval between pixels of a sub-field and an interval between scanning lines of a sub-field.
Claim 2
Dependent Claim
128 words
A driving method used in a display apparatus for displaying an image by means of A pixels or pieces of scanning lines which are respectively provided with selection switch elements, the method comprising the steps of: dividing a sheet of frame image into n sub-fields which are displayed sequentially along a time axis, each of the sub-fields being basically formed of A/n×m pixels or pieces of the scanning lines (where A is a positive integer, n is a positive integer which is equal to 3 or more and is equal to A or less, and m is a positive integer equal to n or less); and a step of changing one of an interval between pixels of a sub-field and an interval between scanning lines of a sub-field.
Claim 3
Dependent Claim
100 words
A driving method according to claim 1, said method further comprising: determining a first interval, said first interval being one of an interval between pixels of a first sub-field and an interval between scanning lines of said first sub-field; determining a second interval, said second interval being one of an interval between pixels of a second sub-field and an interval between scanning lines of said second sub-field; changing a selected one of said first and second intervals to differ from an other one of said first and second intervals, wherein said selected one is changed irregularly along a time axis.
Claim 4
Dependent Claim
121 words
A driving method used in a display apparatus for displaying an image by means of A pixels or pieces of scanning lines which are respectively provided with selection switch elements, the method comprising the steps of: dividing a sheet of frame image into n sub-fields which are displayed sequentially along a time axis, each of the sub-fields being basically formed of A/n×m pixels or pieces of the scanning lines (where A is a positive integer, n is a positive integer which is equal to 3 or more and is equal to A or less, and m is a positive integer equal to n or less); and changing numerical values of m and n depending on image signals of the frame image.
Claim 5
Dependent Claim
121 words
A driving method used in a display apparatus for displaying an image by means of A pixels or pieces of scanning lines which are respectively provided with selection switch elements, the method comprising the steps of: dividing a sheet of frame image into n sub-fields which are displayed sequentially along a time axis, each of the sub-fields being basically formed of A/n×m pixels or pieces of the scanning lines (where A is a positive integer, n is a positive integer which is equal to 3 or more and is equal to A or less, and m is a positive integer equal to n or less); and changing numerical values of m and n depending on image signals of the frame image.
Claim 6
Dependent Claim
100 words
A driving method according to claim 3, said method further comprising: determining a first interval, said first interval being one of an interval between pixels of a first sub-field and an interval between scanning lines of said first sub-field; determining a second interval, said second interval being one of an interval between pixels of a second sub-field and an interval between scanning lines of said second sub-field; changing a selected one of said first and second intervals to differ from an other one of said first and second intervals, wherein said selected one is changed irregularly along a time axis.
Claim 7
Dependent Claim
126 words
A driving method used in a display apparatus for displaying an image by means of A pixels or pieces of scanning lines which are respectively provided with selection switch elements, the method comprising the steps of: dividing a sheet of frame image into n sub-fields which are displayed sequentially along a time axis, each of the sub-fields being basically formed of A/n×m pixels or pieces of the scanning lines (where A is a positive integer, n is a positive integer which is equal to 3 or more and is equal to A or less, and m is a positive integer equal to n or less); and grouping the sub-fields along the time-axis, so that) numerical values of m and n differ between groups of the sub-fields.
Claim 8
Dependent Claim
126 words
A driving method used in a display apparatus for displaying an image by means of A pixels or pieces of scanning lines which are respectively provided with selection switch elements, the method comprising the steps of: dividing a sheet of frame image into n sub-fields which are displayed sequentially along a time axis, each of the sub-fields being basically formed of A/n×m pixels or pieces of the scanning lines (where A is a positive integer, n is a positive integer which is equal to 3 or more and is equal to A or less, and m is a positive integer equal to n or less); and grouping the sub-fields along the time-axis, so that) numerical values of m and n differ between groups of the sub-fields.
Claim 9
Dependent Claim
100 words
A driving method according to claim 5, said method further comprising: determining a first interval, said first interval being one of an interval between pixels of a first sub-field and an interval between scanning lines of said first sub-field; determining a second interval, said second interval being one of an interval between pixels of a second sub-field and an interval between scanning lines of said second sub-field; changing a selected one of said first and second intervals to differ from an other one of said first and second intervals, wherein said selected one is changed irregularly along a time axis.
Claim 10
Dependent Claim
159 words
A driving method used in a display apparatus for displaying an image by means of A pixels or pieces of scanning lines which are respectively provided with selection switch elements, the method comprising the steps of: dividing a sheet of frame image into n sub-fields which are displayed sequentially along a time axis, each of the sub-fields being basically formed of A/n×m pixels or pieces of the scanning lines (where A is a positive integer, n is a positive integer which is equal to 3 or more and is equal to A or less, and m is a positive integer equal to n or less); displaying a first sub-field; selectively applying driving signals to displacement pixels or scanning lines wherein said displacement pixels or scanning lines do not belong to said first sub-field, and wherein said displacement pixels or scanning lines belong to a second sub-field, wherein a substantial portion of pixels of said second sub-field are not displayed.
Claim 11
Dependent Claim
159 words
A driving method used in a display apparatus for displaying an image by means of A pixels or pieces of scanning lines which are respectively provided with selection switch elements, the method comprising the steps of: dividing a sheet of frame image into n sub-fields which are displayed sequentially along a time axis, each of the sub-fields being basically formed of A/n×m pixels or pieces of the scanning lines (where A is a positive integer, n is a positive integer which is equal to 3 or more and is equal to A or less, and m is a positive integer equal to n or less); displaying a first sub-field; selectively applying driving signals to displacement pixels or scanning lines wherein said displacement pixels or scanning lines do not belong to said first sub-field, and wherein said displacement pixels or scanning lines belong to a second sub-field, wherein a substantial portion of pixels of said second sub-field are not displayed.
Claim 12
Dependent Claim
100 words
A driving method according to claim 7, said method further comprising: determining a first interval, said first interval being one of an interval between pixels of a first sub-field and an interval between scanning lines of said first sub-field; determining a second interval, said second interval being one of an interval between pixels of a second sub-field and an interval between scanning lines of said second sub-field; changing a selected one of said first and second intervals to differ from an other one of said first and second intervals, wherein said selected one is changed irregularly along a time axis.
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