| Patent Number |
Title Of Patent |
Date Issued |
| 7015030 |
Microfluidic devices and uses thereof in biochemical processes |
March 21, 2006 |
| Provided is a microfluidic device comprising a microfluidic substrate comprising at least one pathway for sample flow; and at least one thermal transfer member which is capable of cycling between at least two temperatures. The thermal transfer member is adapted to heat at least a por |
| 5876260 |
Method for assembling a flat display screen |
March 2, 1999 |
| A method for assembling two parallel plates respectively forming the bottom and the face of a flat display screen including a degassing step of the plates and a vacuum burn-in step. The method includes the steps of subjecting a first plate to a burn-in step by electronic bombardment, |
| 5834883 |
Flat screen cathode including microtips |
November 10, 1998 |
| A cathode includes microtips for flat display screens, of the type including cathode conductors, between a substrate and a gate, the gate including holes inside meshes defined by the cathode conductors. An insulating layer, including wells facing the holes, is interposed between the |
| 5808403 |
Microtip cathode with auxiliary insulating layer |
September 15, 1998 |
| A microtip cathode for flat panel display screens has a constant access resistance and includes a substrate (10), a resistive layer (19), at least one cathode conductor (13), an insulating layer (16), and a control gate (3). The microtip cathode further includes an auxiliary insulating l |
| 5786663 |
Electron collector having independently controllable conductive strips |
July 28, 1998 |
| An electron collector having an anode constituted by a substrate (21, 40, 41) on which are deposited conductive strips or tracks (23, 43). A dielectric material layer is deposited on at least one of the edges of each conductive strip. |
| 5786660 |
Flat display screen with a high inter-electrode voltage |
July 28, 1998 |
| A flat display screen has a cathode including microtips for electronic bombardment associated with a gate, an anode including phosphor elements, and an inter-electrode gap. The screen includes an apertured insulating plate defining the inter-electrode gap associated with means for ma |
| 5776644 |
Photolithographic method for high resolution circle patterning utilizing calibrated opaque micro |
July 7, 1998 |
| A photolithographic method for patterning small diameter circles at a high resolution on a layer, comprises the steps of depositing a resist layer on said layer; depositing calibrated microspheres, opaque to a radiation, on the surface of the resist layer; and irradiating said resist lay |
| 5574333 |
Method for manufacturing a cathode for fluorescent display screens of the microtip-type |
November 12, 1996 |
| A method for manufacturing a fluorescent display screen cathode including microtips, comprises a supporting plate bearing cathode conductors in meshed columns, a resistive layer bearing microtips, an insulating layer and a grid conductive layer in rows. The method comprises the step of |
| 5537001 |
Flat vacuum chambers without pumping stem |
July 16, 1996 |
| A flat vacuum without pumping stem, for the manufacturing of display screens, comprises two plates made of glass, a sealing peripheral joint interrupted so as to provide an aperture for evacuation of the gases during manufacturing, a thin-film metallic pad disposed on each inner surf |
| 5045754 |
Planar light source |
September 3, 1991 |
| A planar light source, comprises a vacuum enclosure (1) bounded by two parallel, insulating planar walls (3,4) and a side wall (2). On each of the planar walls and within the enclosure (1) is placed a conductive electrode (5,6) covered with an insulating layer (7,8) and at least one of |
| 5015074 |
Polychrome screen |
May 14, 1991 |
| The invention relates to a polychrome screen comprising alternating regions (40A, 40B) of a first (A) and a second (B) dichroic display materials placed between first and second insulating walls (31, 33) and alternating regions (42B, 42C) of a second (B) and a third (C) dichroic display |
| 4957349 |
Active matrix screen for the color display of television pictures, control system and process fo |
September 18, 1990 |
| Active matrix screen for the color display of television images or pictures, control system and process for the production of the screen.The screen utilizes the electrically controlled birefringence effect and comprises an assembly having a nematic liquid crystal layer (2) with a positiv |
| 4937566 |
Liquid crystal matrix display screen provided with storage capacitances |
June 26, 1990 |
| Liquid crystal matrix display screens in an uncrossed bus-type architecture are characterized in that at each point of the matrix there is a storage capacitance (CS) constituted by a spacer conductor (18,19) connecting part of the point electrode (16,17) surface to the facing part of the |
| 4889412 |
Liquid crystal cell using the electrically controlled birefringence effect and a uniaxial medium |
December 26, 1989 |
| Liquid crystal cell using the electrically controlled birefringence effect and processes for the production of the cell and a uniaxial medium or material of negative optical anistropy usable therein.The cell can comprise two crossed rectilinear polarizers, two glass plates provided with |
| 4841294 |
Active matrix display screen permitting the display of gray levels |
June 20, 1989 |
| A single signal is produced, which includes a pedestal and a ramp. This signal is supplied to a column control circuit which transmits the voltage to each column for a time which can assume a number of discrete values between t.sub.1, the pedestal duration, and T.sub.L, the addressing ti |
| 4813770 |
Cell with a double liquid crystal layer using the electrically controlled birefringence effect a |
March 21, 1989 |
| Cell with a double liquid crystal layer using the electrically controlled birefringence effect and process for producing a negative optical anisotropy uniaxial material usable in said cell.The cell can comprise two crossed rectilinear polarizers, three glass plates provided with transpar |
| 4782337 |
Matrix display device comprising two groups of row electrodes and two column electrodes for imag |
November 1, 1988 |
| A matrix display device and control therefore applicable to liquid crystal displays incorporates two groups of row electrodes and two column electrodes per image element. Each row conductor is connected by k.times.m switches to m groups of k parallel electrodes of a first family and to m |
| 4759609 |
Process for the sequential control of a liquid crystal matrix display means having different opt |
July 26, 1988 |
| A process for the sequential control of a liquid crystal display means having different optical responses in alternating and steady fields. This process consists of applying to one side of a first electrode an a.c. potential V.sub.1 and to the other side an a.c. potential V.sub.2, with |
| 4753518 |
Integrated control, active matrix display comprising two groups of row electrodes and two groups |
June 28, 1988 |
| Integrated control, active matrix display means comprising two groups of row electrodes and two groups of column electrodes per image point and the control process for the same. This means comprises a display material inserted between two walls on the inner faces of which are arranged n |
