Creator Technology B.v.

Koninklijke Philips Corporation N.v.

Liquavista B.v.

Samsung Lcd Netherlands R&d Center B.v.

Leendert Marinus Hage

Mark Thomas Johnson

Hjalmar Edzer Ayco Huitema

Karel E Kuijk

Bokke Johannes Feenstra

Johannes Cornelis Adriaan Hamers

Robert Andrew Hayes

Guofu Zhou

Erik Van Veenendaal

Robert Sjang Josine Van Dijk

Petrus Johannes Gerardus Van Lieshout

Ronald Martin Wolf

Bart Peeters

Cornelis Jan Hendrik De Zeeuw

Ivo G J Camps

Lucas J M Schlangen

Robèrt Van Dijk

Ewout V Morks

Patrice G C Jaulneau

Coert Petrus Ansems

Cornelis De Zeeuw

Anthony R Franklin

Rogier H M Cortie

A device (B) is described for driving a bistable display (A). The device includes a processor () for receiving an input signal indicative for a desired luminance of said at least one pixel. The device also includes a controller () for determining a sequence of voltage levels to achieve a transition from a present luminance to the desired luminance. The device further includes a voltage generator () for generating the sequence of voltage levels. A portion of the sequence is selected from a plurality of mutually different sequence portions, to achieve mutually different luminance transitions. At least a first and a second of this plurality of sequence portions mutually have a same set of voltage levels and have the voltage levels from that set occurring the same number of times, but have the voltage levels in that set occur in a mutually different order.

Method and apparatus for driving an electronic display and a system comprising an electronic display

A lookup table provides voltage waveforms for transitions between a plurality of discrete pixel states forming a set that can be ordered in consecutive states according to a reflectivity of the pixel. An image controller repeatedly executes, in a consecutive drive phase, the steps of retrieving an initial state and update state, matching, when the initial and update states are different, in the ordered set of pixel states of the lookup table, a consecutive state and a corresponding consecutive waveform, the consecutive state forming a path, according to the consecutive drive phase, from the initial state to the update state in the set of pixel states, storing the consecutive state in the memory as new initial state; and controlling a voltage driver to drive the pixel from the initial state to the consecutive state using said consecutive waveform.

Consecutive driving of displays

A display driving arrangement is described wherein, during a scan line driving phase, a column driver is controlled to provide a plurality of driving column voltages to the source terminals and the row driver is controlled to provide scanning row selection voltages to the gate terminals for sequentially updating the each pixel having an initial pixel state, voltages with said plurality of driving column voltages to attain, for each initial pixel state, an initial common pixel state. During a common driving phase the column driver is controlled to provide a uniform column voltage to the source terminals to update the plurality of pixel voltages with a uniform column voltage. In addition, the row driver is controlled to provide row select voltages with a gate swing that is lower during the common driving phase than during the row driving phase so as to drive the pixels from a respective the initial common state to a respective final common state. The pixel states may differ from each other at least during a part of the common driving phase or even during the entire common driving phase, so that initial and final common states and intermediate states may differ from pixel to pixel.

Common driving of displays

An optical switch, e.g., a display device based on layer break up or layer displacement having at least two different states, in which one of the fluids, e.g., oil in a first state, adjoins at least a first support plate and, in the second state, the other fluid at least partly adjoins the first support plate, in which picture elements are separated by areas having a hydrophilic surface.

Display device

A device for multiple row addressing is driven by frame addressing with pulse patterns based on sets of orthogonal functions. By choosing redundant frames with suitable frame lengths, a less varying frequency content is obtained than with pulse patterns obtained via frames based on a set of binary functions.

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Eindhoven, Netherlands

Leendert Marinus Hage