EP0302653A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Colour display
Assignee: International Business Machines Corp
•
Filing: 1988-07-27
•
Granted: —
•
Expires: 2008-07-27
Abstract
Abstract In a colour display having recurrently arrayed, independently driven picture elements (2, 4, 6) of different first, second and third colours, the picture elements of the first, second and third colours are centred on the corners of individual first, second and third overlapping rectangles (2S, 4S, 6S), each of the three rectangles having a diagonal lying along a common line (8D).
Inventors
- 👤 Hidefumi Yamaguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 11:40
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G02F2201/00; G02F2201/52
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
73 words
A colour display having recurrently arrayed picture elements (2, 4, 6) of different first, second and third colours, each picture element being capable of being independently driven, characterised in that the picture elements (2, 4, 6) of the first, second and third colours are centred on the corners of individual first, second and third overlapping rectangles (2S, 4S, 6S), each of the three rectangles having a diagonal lying along a common line (8D).
Claim 2
Dependent Claim
73 words
A colour display having recurrently arrayed picture elements (2, 4, 6) of different first, second and third colours, each picture element being capable of being independently driven, characterised in that the picture elements (2, 4, 6) of the first, second and third colours are centred on the corners of individual first, second and third overlapping rectangles (2S, 4S, 6S), each of the three rectangles having a diagonal lying along a common line (8D).
Claim 3
Dependent Claim
19 words
A colour display as claimed in claim 1, wherein the common line lies at 45 degrees to the horizontal.
Claim 4
Dependent Claim
20 words
A colour display as claimed in claim 1 or claim 2, wherein the first, second and third rectangles are squares.
Claim 5
Dependent Claim
20 words
A colour display as claimed in any preceding claim, wherein the colour picture elements are all of the same shape.
Claim 6
Dependent Claim
66 words
A colour display as claimed in claim 4, wherein the following relationship is satisfied: S : D = 3 : √2 where S is the horizontal or vertical distance between the centres of two adjacent picture elements of the same colour and D is the distance between the centres of two adjacent picture elements of different colours along a line at 45 degrees to the horizontal.
Claim 7
Dependent Claim
28 words
A colour display as claimed in claim 5, wherein each of the colour picture elements is rectangular, the sides of which lie at 45 degrees to the horizontal.
Claim 8
Dependent Claim
24 words
A colour display as claimed in claim 6, wherein the ratio of the longer side to the shorter side of the rectangles is 3:2.
Claim 9
Dependent Claim
35 words
A colour display as claimed in claim 1 or claim 2, wherein the size of the picture elements of one colour is different from the size of the picture elements of the other two colours.
Claim 10
Dependent Claim
25 words
A colour display as claimed in any one of the preceding claims, wherein the first, second and third colours are red, green and blue, respectively.
Claim 11
Dependent Claim
25 words
A colour display as claimed in any one of the preceding claims, wherein each of the picture elements includes a colour filter of appropriate colour.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.