US5144288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color liquid-crystal display apparatus using delta configuration of picture elements
Assignee: Sharp Corp
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Filing: 1990-04-05
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Granted: 1992-09-01
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Expires: 2010-04-05
Abstract
Abstract The present invention relates to picture elements of a color liquid-crystal display apparatus, color arrangements of coloring means, and the electric control. The arrangement patterns of picture-element electrodes are provided which may be driven by a simple driving circuit and may obtain the regenerative images of high quality. In the color liquid-crystal display apparatus, the delta arrangement is adopted, thus improving the image resolution and the display quality.
Inventors
- 👤 Hiroshi Hamada
- 👤 Toshiaki Takamatsu
- 👤 Naofumi Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:48
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/13306; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G09; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/36; G09G3/3607; G02F2201/00; G02F2201/52
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
241 words
A color liquid crystal display apparatus, comprising: a plurality of picture element groups arranged in a matrix, each picture element group including, a plurality of color picture elements, each color picture element associated with a particular color corresponding to red, green, or blue, said plurality of color picture elements being arranged in a delta configuration; a plurality of scanning electrodes arranged in parallel and extending over said matrix in a first direction; and a plurality of signal electrodes arranged in parallel and extending over said matrix in a second direction perpendicular to said first direction; said picture element groups being arranged parallel to said scanning electrodes and in such a manner that said color picture elements are disposed in a plurality of lines along said first direction, color picture elements of the same color in any two adjacent lines being arranged at a 1.5 element pitch in said first direction, color picture elements of the same color in any two alternate lines being arranged in parallel along said second direction, each said signal electrode being of a zigzag configuration and being connected only to color picture elements of the same color on alternating sides of said signal electrode in alternating ones of the plurality of lines, respectively, so as to drive only color picture elements of the same color through each signal electrode, said scanning electrodes being connected to at least two color picture elements of picture element groups parallel thereto.
Claim 2
Dependent Claim
241 words
A color liquid crystal display apparatus, comprising: a plurality of picture element groups arranged in a matrix, each picture element group including, a plurality of color picture elements, each color picture element associated with a particular color corresponding to red, green, or blue, said plurality of color picture elements being arranged in a delta configuration; a plurality of scanning electrodes arranged in parallel and extending over said matrix in a first direction; and a plurality of signal electrodes arranged in parallel and extending over said matrix in a second direction perpendicular to said first direction; said picture element groups being arranged parallel to said scanning electrodes and in such a manner that said color picture elements are disposed in a plurality of lines along said first direction, color picture elements of the same color in any two adjacent lines being arranged at a 1.5 element pitch in said first direction, color picture elements of the same color in any two alternate lines being arranged in parallel along said second direction, each said signal electrode being of a zigzag configuration and being connected only to color picture elements of the same color on alternating sides of said signal electrode in alternating ones of the plurality of lines, respectively, so as to drive only color picture elements of the same color through each signal electrode, said scanning electrodes being connected to at least two color picture elements of picture element groups parallel thereto.
Claim 3
Dependent Claim
29 words
The color liquid crystal display apparatus claimed in claim 1, wherein said scanning electrodes are connected to all the color picture elements of each picture element group parallel thereto.
Claim 4
Dependent Claim
24 words
The color liquid crystal display apparatus claimed in claim 1, wherein said signal electrodes are connected to said color picture elements through non-linear elements.
Claim 5
Dependent Claim
24 words
The color liquid crystal display apparatus claimed in claim 1, wherein said signal electrodes are connected to said color picture elements through switching elements.
Claim 6
Dependent Claim
62 words
The color liquid crystal display apparatus claimed in claim 1, wherein the picture electrodes of three different color picture elements are arranged in a delta configuration, the adjacent signal electrodes are each connected with the picture elements of the same color, and each said scanning electrode is connected to color picture elements of three colors, forming a set of R, G, B.
Claim 7
Independent Claim
271 words
A method of arranging a plurality of color picture elements of a color liquid crystal display device including a plurality of parallel scanning electrodes arranged in a first direction and a plurality of parallel signal electrodes arranged in a second direction, perpendicular to the first direction, to improve image quality and overall display efficiency, comprising the steps of: a) forming each of a plurality of picture element groups from the plurality of color picture elements, each color picture element being associated with a kparticular color corresponding to red, green, or blue; b) configuring the plurality of color picture elements, for each of the plurality of picture element groups, in a delta configuration; c) arranging each of the picture element groups, on the color liquid crystal display device, in the first direction parallel to the scanning electrodes, the color picture elements being disposed in a plurality of lines along the first direction such that color picture elements of the same color in any two adjacent lines are arranged at a 1.5 element pitch in the first direction and color picture elements of the same color in any two alternating lines are arranged in parallel along the second direction; d) connecting each of the plurality of parallel signal electrodes to only color picture elements of the same color on alternating sides of each signal electroded in alternating ones of the plurality of lines, respectively, so as to drive only color picture elements of the same color through each signal electrode; e) connecting each of the plurality of scanning electrodes to at least two color picture elements of a picture element group parallel thereto.
Claim 8
Independent Claim
271 words
A method of arranging a plurality of color picture elements of a color liquid crystal display device including a plurality of parallel scanning electrodes arranged in a first direction and a plurality of parallel signal electrodes arranged in a second direction, perpendicular to the first direction, to improve image quality and overall display efficiency, comprising the steps of: a) forming each of a plurality of picture element groups from the plurality of color picture elements, each color picture element being associated with a kparticular color corresponding to red, green, or blue; b) configuring the plurality of color picture elements, for each of the plurality of picture element groups, in a delta configuration; c) arranging each of the picture element groups, on the color liquid crystal display device, in the first direction parallel to the scanning electrodes, the color picture elements being disposed in a plurality of lines along the first direction such that color picture elements of the same color in any two adjacent lines are arranged at a 1.5 element pitch in the first direction and color picture elements of the same color in any two alternating lines are arranged in parallel along the second direction; d) connecting each of the plurality of parallel signal electrodes to only color picture elements of the same color on alternating sides of each signal electroded in alternating ones of the plurality of lines, respectively, so as to drive only color picture elements of the same color through each signal electrode; e) connecting each of the plurality of scanning electrodes to at least two color picture elements of a picture element group parallel thereto.
Claim 9
Dependent Claim
29 words
The method of claim 6, wherein thke plurality of parallel signal electrodes and the plurality of parallel scanning electrodes are connected to the color picture elements through switching elements.
Claim 10
Dependent Claim
29 words
The method of claim 6, wherein the plurality of parallel signal electrodes and the plurality of parallel scanning electrodes are connected to the color picture elements through non-linear elements.
Claim 11
Dependent Claim
73 words
The method of claim 6, wherein step d) of connecting further comprises: arranging each of the plurality of parallel signal electrodes on the liquid crystal device in the second direction and undulating by a 0.5 element pitch in the first direction, each of the plurality of parallel signal electrodes so as to connect each to only picture elements of the same color on alternating sides of each signal electrode in each line thereof.
Claim 12
Dependent Claim
264 words
A color liquid crystal display apparatus, comprising: a plurality of picture element groups arranged in a matrix, each picture element group including, a plurality of color picture elements, each color picture element associated with a particular color corresponding to red, green, or blue, said plurality of color picture elements being arranged in a delta configuration; a plurality of scanning electrodes arranged in parallel and extending over said matrix in a first direction; and a plurality of signal electrodes arranged in parallel and extending over said matrix in a second direction perpendicular to said first direction; said picture element groups being arranged parallel to said scanning electrodes and in such a manner that said color picture elements are disposed in a kplurality of lines along said first direction, color picture elements of the same color in any two adjacent lines being arranged at a 1.5 element pitch in said first direction, color picture elements of the same color in any two alternate lines beign arranged in parallel along said second direction, each said signal electrode being of a straight line configuration and being connected only to color picture elements of the same color at every two color picture element widths in said second direction, so as to drive only color picture elements of the same color through each signal electrode, and being connected in an arrangement such that color picture elements of picture element groups to be connected at adjacent signal electrodes are different in color, and said scanning electrodes being connected to at least two color picture elements of picture element groups parallel thereto.
Claim 13
Dependent Claim
264 words
A color liquid crystal display apparatus, comprising: a plurality of picture element groups arranged in a matrix, each picture element group including, a plurality of color picture elements, each color picture element associated with a particular color corresponding to red, green, or blue, said plurality of color picture elements being arranged in a delta configuration; a plurality of scanning electrodes arranged in parallel and extending over said matrix in a first direction; and a plurality of signal electrodes arranged in parallel and extending over said matrix in a second direction perpendicular to said first direction; said picture element groups being arranged parallel to said scanning electrodes and in such a manner that said color picture elements are disposed in a kplurality of lines along said first direction, color picture elements of the same color in any two adjacent lines being arranged at a 1.5 element pitch in said first direction, color picture elements of the same color in any two alternate lines beign arranged in parallel along said second direction, each said signal electrode being of a straight line configuration and being connected only to color picture elements of the same color at every two color picture element widths in said second direction, so as to drive only color picture elements of the same color through each signal electrode, and being connected in an arrangement such that color picture elements of picture element groups to be connected at adjacent signal electrodes are different in color, and said scanning electrodes being connected to at least two color picture elements of picture element groups parallel thereto.
Claim 14
Dependent Claim
23 words
The color liquid crystal display apparatus of claim 10 wherein said signal electrodes are connected to said color picture elements through non-linear elements.
Claim 15
Dependent Claim
32 words
The color liquid crystal display apparatus claimed in claim 11, wherein each said color picture element is divided in two parts, one part disposed on each alternate side of each signal electrode.
Claim 16
Dependent Claim
27 words
The color liquid crystal display apparatus of claim 11, wherein the non-linear elements are ones selected from the group consisting of TFT, MOS-FET, MIN, and back-to-back diode.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-01 | 1996-03-02 | 1996-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-01 | 2000-03-02 | 2000-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-01 | 2004-03-02 | 2004-09-01 | $7700.00 | Window Closed / Lapsed |