AU6471986A – Display member
– Google Patents
AU6471986A – Display member
– Google Patents
Display member
Info
Publication number
AU6471986A
AU6471986A
AU64719/86A
AU6471986A
AU6471986A
AU 6471986 A
AU6471986 A
AU 6471986A
AU 64719/86 A
AU64719/86 A
AU 64719/86A
AU 6471986 A
AU6471986 A
AU 6471986A
AU 6471986 A
AU6471986 A
AU 6471986A
Authority
AU
Australia
Prior art keywords
display
face
improvement
display position
reference member
Prior art date
1985-10-03
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
AU64719/86A
Other versions
AU585082B2
(en
Inventor
Roger Samuel Kent
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ERG Management Services Pty Ltd
Original Assignee
E R G MAN SERVICES Ltd
ERG Management Services Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1985-10-03
Filing date
1986-10-02
Publication date
1987-04-24
1986-10-02
Application filed by E R G MAN SERVICES Ltd, ERG Management Services Pty Ltd
filed
Critical
E R G MAN SERVICES Ltd
1987-04-24
Publication of AU6471986A
publication
Critical
patent/AU6471986A/en
1989-06-08
Application granted
granted
Critical
1989-06-08
Publication of AU585082B2
publication
Critical
patent/AU585082B2/en
2006-10-02
Anticipated expiration
legal-status
Critical
Status
Ceased
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
G09F9/375—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the position of the elements being controlled by the application of a magnetic field
Description
DISPLAY MEMBER
THIS INVENTION relates to a display member capable of providing a variable display.
In particular the invention relates to a display member of the form disclosed in the International Patent Application PCT/AU83/00177 (WO84/02414) .
It has been found that display members of this form suffer from the difficulty that on movement of one reference member between either of its end states the fluid flow produced can result in the displacement of adjacent reference members where a common chamber is used.
It is an object of this invention to at least partially overcome.the above difficulty.
In one’ form the invention resides in an improvement in a display member of the type comprising a plurality of reference members accommodated within a common chamber filled with an opaque fluid wherein each reference member is independently movable between a display position at which it is in face to face engagement with a display face of the chamber and a non-display position at which it is out of engagement with the display face and wherein each reference member is associated with a boundary wall which at least partially surrounds the sides of the lamina member when at its non-display and/or display position.
According to a preferred feature of the invention the edges of the reference member are chamfered.
In another form the invention resides in an improvement in a display member of the type comprising a plurality of reference members accommodated within a common chamber
z
filled with an opaque fluid wherein each reference member is independently movable between a display position at which it is in face to face engagement with a transparent display face and a non-display position at which it is out of engagement with the display face, said improvement comprising the edges of the display face being bevelled to produce a lens-like effect and magnify the adjacent edges of reference members at the edge of the chamber when in display position.
The invention will be more fully understood in the light of the following description of one specific embodiment. The description is made with reference to the accompanying drawings of which:-
Figure 1 is a partial front view of the display member according to the embodiment;
Figure 2 is a part sectional elevation of the embodiment; and
Figure 3 is a part sectional elevation of an edge of the embodiment.
The embodiment relates to- a display member comprising a chamber 11 defined between a pair of substantially parallel walls wherein one wall 12 is substantially transparent and defines the front display face of the chamber and the other wall 13 defines the rear wall of the chamber. The chamber 11 accommodates a plurality of substantially square lamina shaped reference members 14 which are supported within the chamber to form an array and are independently movable between the front wall 12 and the rear wall 13. Each reference member 14 is formed with a rearwardly extending spigot 15 which is accommodated within a rearwardly extending tubular formation 16 on the rear face of the rear wall 13 to be slidably accommodated therein. A suitable drive means is
– j –
provided between the spigot 15 and the tubular formation 16 to effect controlled movement of the reference member 14 between a display position at which it is in face to face engagement with the front wall and a non-display position at which it is in face to face engagement with the rear wall 13. The chamber 11 is filled with an opaque liquid which facilitates the invisibility of the reference member 14 when in its non-display position.
The display face 17 of the reference member 14 is formed with a plurality of grooves which extend across the face of the reference member 14 and open at the sides thereof. The function of the grooves is to provide a means whereby fluid between the display face 17 and the front wall 12 on movement of the reference member 14 towards the front wall 12 can escape from there-be ween to facilitate more rapid movement of the reference member 14 to its display position.. In addition the grooves 18 serve to reduce but not eliminate the surface tension and/or the • adhesive and/or cohesive forces between the display face 17 and the front wall 12 to reduce the forces required for withdrawal of the reference member 14 from the front wall 12.
The rear wall 13 is formed with a plurality of flanges which extend from the face of the rear wall 13 to define a boundary wall 19 surrounding each reference member 14 when in their non-display position. The function of the boundary wall 19 is to direct fluid entering or escaping from the space between the display member 14 and the rear wall 13 on movement of the display member 14 towards the rear wall 13, outwardly from the rear wall 13. The resultant fluid flow is directed away from adjacent reference members 14 which may be in the non-display mode. As a result of the boundary wall 19 any fluid escaping from between or into the space between a reference member 14 and the rear wall 13 does not directly effect the
corresponding space for adjacent reference members which may also be in their non-display position or moving to that position. The movement of the fluid between the reference member 14 and the rear wall 13 is further controlled by forming a rearwardly inclined chamfer 20 on the sides of the reference member 14. The effect of this chamfer ensures that when a reference member is in its display mode any fluid flow over its rear face resulting from the movement of adjacent reference members produces a movement tending to force the reference member into engagement with the display face.
If desired the rear face of the front wall 12 may also be formed with a boundary wall similar to the boundary wall 19 on the rear wall 13 in order to control the entry and exit of fluid between the display member 14 and the front wall 12 on movement of the display member 14. Alternatively the boundary wall may extend across the space between the front and rear walls and be discontinuous to facilitate controlled fluid transfer through the chamber which will not displace the adjacent reference members. In addition the edges of each reference member 14 may also be formed with a forwardly inclined chamfer.
As a further feature the embodiment provides for the provision of a bevelled edge 20 at the sides of the display face as shown at Figure 3. The bevelled edge produces a lens-like refraction of light which results in adjacent edges of the reference member at the edge of the chamber being magnified to produce an image whereby the boundary wall 21 of the display face is significantly reduced and the adjacent edges of the reference member are enlarged. In addition the transparent display face may be configured to have a lens-like effect and magnify the image of the reference members when in their display mode.
It should be appreciated that the scope of the present invention need not be limited to the particular scope of the embodiment described above.
Claims (12)
THE CLAIMS defining the invention are as follows:-
1. An» improvement in a display member of the type comprising a plurality of reference members accommodated within a common chamber filled with an opaque fluid wherein each reference member is independently movable between a display position at which it is in face to face engagement wit ‘ a display face of the chamber and a non- display position at which it is out of engagement with the display face, said improvement comprising each reference member being associated with a boundary wall which surrounds the sides of the reference member when at its non-display and/or display position.
2. An improvement as claimed at claim 1 wherein the chamber has a rear face against which the reference member lies when in its non-display position and said boundary wall extends outwardly from said rear wall.
3. An improvement as claimed at claim 1 or 2 wherein the boundary wall extends rearwardly from the display face.
4. An improvement as claimed at claims 2 or 3 wherein the boundary wall extends between the space between the rear face and the display face.
5. An improvement as claimed at any one of the preceding claims wherein the edges of the reference member are chamfered.
6. An improvement as claimed at claim 5 wherein the chamfer is formed on the rear face of the reference member.
7. An improvment as claimed at any one of the preceding claims wherein the edges of the display face are bevelled to produce a lens-like effect and magnify the adjacent edges of reference members at the edge of the chamber when in their display position.
8. An improvement as claimed in any one of the preceding claims wherein said display face is configured to have a lens-like effect and magnify the image of the reference members when at their display position.
9. An improvement in a display member of the type comprising a plurality of reference members accommodated within a common chamber filled with an opaque fluid wherein each reference member is independently movable between a display position at which it is in face to face engagement with a transparent display face and a non- display position at which it is out of engagement with the display face, said improvement comprising the edges of the display face -being bevelled to produc’e a lens-like effect and magnify the adjacent edges of reference members at the edge of the chamber when in display position.
10. An improvement as claimed at claim 9 wherein said display face is configured to have a lens-like effect and magnify the image of the reference members when at their display position.
11. An improvement as claimed at any one of the preceding claims wherein the front face of the reference member is formed with grooves which open at one end at least to the side of the reference member.
12. An improvement in a display member substantially as herein described with reference to the accompanying drawings.
AU64719/86A
1985-10-03
1986-10-02
Display member
Ceased
AU585082B2
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
AUPH2743
1985-10-03
AUPH274385
1985-10-03
Publications (2)
Publication Number
Publication Date
AU6471986A
true
AU6471986A
(en)
1987-04-24
AU585082B2
AU585082B2
(en)
1989-06-08
Family
ID=3771304
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU64719/86A
Ceased
AU585082B2
(en)
1985-10-03
1986-10-02
Display member
Country Status (8)
Country
Link
US
(1)
US4864752A
(en)
EP
(1)
EP0240520A4
(en)
JP
(1)
JPS63501041A
(en)
AU
(1)
AU585082B2
(en)
CA
(1)
CA1270639A
(en)
ES
(1)
ES2002798A6
(en)
WO
(1)
WO1987002167A1
(en)
ZA
(1)
ZA867521B
(en)
Families Citing this family (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4825205A
(en)
*
1987-06-19
1989-04-25
Lee Gyu S
Changeable display unit for use in a sign device
CN1042905C
(en)
*
1991-08-14
1999-04-14
刘江河
Rotatable and motionable up and down spurted water crystal ball
US5228225A
(en)
*
1991-10-29
1993-07-20
Lee Vincent K W
Progressive liquid display device
US6456273B1
(en)
*
1999-12-06
2002-09-24
Xerox Corporation
Flap array under fluidic and electrical control
Family Cites Families (13)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2173316A
(en)
*
1936-07-10
1939-09-19
Hughes Henry & Son Ltd
Indicating instrument
CH405992A
(en)
*
1961-11-10
1966-01-15
Ibm
Display device with letters or numbers
US3346977A
(en)
*
1963-04-26
1967-10-17
Rydstrom Hans Fredrik
Image reproducing device
FR1465490A
(en)
*
1965-10-29
1967-01-13
Electronique & Radio Ind
Enhancements to Symbol Display Devices
US3372501A
(en)
*
1966-02-23
1968-03-12
George B. Greene
Pneumatic display sign
US3400478A
(en)
*
1966-10-21
1968-09-10
Pitney Bowes Inc
Composite character display device
US3812490A
(en)
*
1972-09-18
1974-05-21
Bendix Corp
Flexible membrane display panel for generating characters visible in ambient light
NL7510103A
(en)
*
1975-08-27
1977-03-01
Philips Nv
ELECTROSTATICALLY CONTROLLED IMAGE DISPLAY DEVICE.
GB2101386B
(en)
*
1981-06-16
1984-10-24
Robin Warne
Visual display apparatus
NL8200354A
(en)
*
1982-02-01
1983-09-01
Philips Nv
PASSIVE DISPLAY.
EP0158635B1
(en)
*
1982-12-08
1988-08-10
E.R.G. Management Services Ltd.
Display member
AU550679B2
(en)
*
1982-12-08
1986-03-27
E.R.G. Management Services Ltd.
Display member
US4693025A
(en)
*
1985-04-02
1987-09-15
Pedro Landin
Display element
1986
1986-10-02
US
US07/086,148
patent/US4864752A/en
not_active
Expired – Fee Related
1986-10-02
WO
PCT/AU1986/000286
patent/WO1987002167A1/en
not_active
Application Discontinuation
1986-10-02
EP
EP19860905684
patent/EP0240520A4/en
not_active
Withdrawn
1986-10-02
CA
CA000519642A
patent/CA1270639A/en
not_active
Expired – Lifetime
1986-10-02
JP
JP61505216A
patent/JPS63501041A/en
active
Pending
1986-10-02
AU
AU64719/86A
patent/AU585082B2/en
not_active
Ceased
1986-10-03
ZA
ZA867521A
patent/ZA867521B/en
unknown
1986-10-03
ES
ES8602397A
patent/ES2002798A6/en
not_active
Expired
Also Published As
Publication number
Publication date
JPS63501041A
(en)
1988-04-14
WO1987002167A1
(en)
1987-04-09
CA1270639A
(en)
1990-06-26
ES2002798A6
(en)
1988-10-01
ZA867521B
(en)
1987-05-27
EP0240520A4
(en)
1989-03-09
AU585082B2
(en)
1989-06-08
US4864752A
(en)
1989-09-12
EP0240520A1
(en)
1987-10-14
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