1
Martin J Edwards: Touch sensor array systems and display systems incorporating such. U S Philips Corporation, Brian J Wieghaus, March 16, 1993: US05194862 (184 worldwide citation)

A touch sensor array system includes a row and column array of individual sensing elements each of which has a bistable circuit arranged to adopt one of the other of its two stable state in dependence upon whether or not a touch input, by e.g. a stylus or finger, exists at the sensing element locati ...


2
Cornelis Van Berkel, Neil C Bird, Oliver S Davies, Martin J Edwards, John M Shannon, Alan G Knapp: Image sensor with transparent capacitive regions. U S Philips Corporation, Edward W Goodman, September 20, 1994: US05349174 (80 worldwide citation)

The image sensor (1a) has a transparent substrate (2) supporting a two dimensional array (3) of photosensitive and switching elements (4) with switching signal conductors (5) and data signal conductors (6) connected to the photosensitive and switching elements (4) for enabling individual photosensit ...


3
John R A Ayres, Martin J Edwards: Electronic devices with thin-film circuit elements forming a sampling circuit. U S Philips Corporation, Steven R Biren, November 4, 1997: US05684318 (65 worldwide citation)

In an LCD or other electronic device, thin-film circuit elements on a substrate (100) form a sample-and-hold or other sampling circuit (10). The circuit (10) comprises a TFT (Ts) as a sampling transistor and preferably another TFT (T2) to compensate for displacement currents in charging and discharg ...


4
Martin J Edwards: Multi-standard video matrix display apparatus and its method of operation. U S Philips Corporation, Robert J Kraus, August 2, 1994: US05335023 (44 worldwide citation)

In a matrix display apparatus for displaying video signal of two or more different standards, such as PAL and NTSC standards comprising a display panel (10), for example, a liquid crystal display panel, having a row and column array of picture elements (12), a column driver circuit (22) for sampling ...


5
Martin J Edwards: Liquid crystal display with black matrix held at a fixed potential with a feedback circuit. U S Philips Corporation, John C Fox, October 4, 1994: US05353135 (36 worldwide citation)

A matrix liquid crystal display device of the kind having a light shielding matrix (18) in the form of a grid of electrically conductive material carried on the same plate (11) as one set of address conductors (20) and separated therefrom by an insulating layer (21), further includes a feedback circ ...


6
John R A Ayres, Martin J Edwards: Active matrix display devices. Koninklijke Philips Electronics, May 24, 2005: US06897843 (34 worldwide citation)

An active matrix display device includes a plurality of pixels (10) arranged as rows and columns and column electrodes (16) extending along corresponding columns of pixels (10). The pixels include a capacitance (18,70) for storing image data and a read circuit for reading the charge stored on the ca ...


7
Martin J Edwards: Active matrix display devices. U S Philips Corporation, Robert J Kraus, September 5, 1995: US05448258 (33 worldwide citation)

An active matrix display device having an array of picture elements (12) comprising capacitive display elements, for example, liquid crystal elements, driven by row and column drive circuits (21,25) via row and column conductors (18,19) in which the column drive circuit (25) supplies multi-bit digit ...


8
Martin J Edwards: Current source and display device using the same. Koninklijke Philips Electronics, Aaron Waxler, December 24, 2002: US06498438 (33 worldwide citation)

A display device comprises an array of pixels arranged in rows and columns, each pixel comprising a current-driven display element, for example an electroluminescent display element. Driver circuitry is provided for producing current signals for driving the display elements. The driver circuitry gen ...


9
Martin J Edwards: Electronic drive circuits for active matrix devices, and a method of self-testing and programming such circuits. U S Philips Corporation, Steven R Biren, November 7, 1995: US05465053 (31 worldwide citation)

A shift register or other electronic drive circuit, for an LCD or other active matrix device includes a series of circuit blocks each having redundancy in the form of parallel circuit paths. When the circuit is turned on, self-testing and redundancy selection is carried out by individual test and co ...


10
Martin J Edwards: Matrix display devices. U S Philips Corporation, F Brice Faller, July 13, 1999: US05923311 (28 worldwide citation)

A matrix display device having an array of picture elements (12) which each comprise a serial charge redistribution D to A converter circuit that includes two transistors (30, 31) and two capacitors (34, 35), at least one of which comprises an electro-optic, e.g. liquid crystal, display element, and ...