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ELECTROCAPILLARY IMAGING DEVICES FOR DISPLAY AND DATA STORAGE

IP.com Disclosure Number: IPCOM000024016D
Original Publication Date: 1979-Jun-30
Included in the Prior Art Database: 2004-Apr-01
Document File: 2 page(s) / 369K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is an imaging or display device, which utilizes the principles of electrocapillarity to cause the alteration by spreading or contracting of the surface or bulk energies of liquids. Volume 4 Number 3 May/3une 1979

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XEROX DISCLOSURE JOURNAL

ELECTROCAPILLARY IMAGING DEVICES FOR DISPLAY AND DATA STORAGE
N. K. Sheridon

Proposed Classification
U.S. Cl. 350/267

mt. Cl. G05d 25/00

/2

'4

V~EW~NGDIRECTION

V~EW~NGD~RECT~ON

Disclosed is an imaging or display device, which utilizes the principles of electrocapillarity to cause the alteration by spreading or contracting of the surface or bulk energies of liquids.

NG. /

/2

/6

/4

OFF ON

FIG. 2

Volume 4 Number 3 May/3une 1979 385

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ELECTROCAPILLARY IMAGING DEVICES FOR DISPLAY AND DATA STORAGE (Cont~d)

In Figure 1 a glass or plastic reservoir plate 1 is provided with an array of reservoirs 2 in which is contained a colored conductive fluid 3. The reservoir plate is coated with a transparent conductive layer 4 which in turn is overcoated with a thin layer of a low surface energy insulator 5. A similarly coated glass plate 6, also bearing a conductive layer 4 and a low surface energy insulator 5, is placed adjacent reservoir plate 1 to define therewith an expansion gap 7 between the plates. The fluid 3 is positioned in the zone between the plates by its adhesion to the high surface energy area 8 coated upon plate 6. Upon application of electrical fields between the plates and the conductive liquid, the cell will be turned "ON" and the liquid will leave the reservoir to fill the expansion zone between the plates, greatly increasing the cross-sectional area occupied by the liquid and thus the v...