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AssigneeKoninklijke Philips Electronics N.V.
InventorsCoen Theodorus Hubertus Fransiscus Liedenbaum, Adrianus Sempel, Remco Los
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This invention relates to a method of driving a display device (8) comprising a layer of organic electroluminescent material (4, 5), said layer being sandwiched between an anode (5) comprising a plurality of separated anode segments (5′) and a cathode (6), said method comprising the steps of dividing the anode segments (5′) into N subgroups (5a, 5b), each anode segment in each subgroup being surrounded by anode segments which are not members of the same subgroup, dividing an image signal IStot into corresponding N subgroups IS1, IS2, . . . ISN, so that the i:th subgroup comprises the information which is intended to be fed to the anode segments of the corresponding i:th anode segment subgroup, and, during a first time period t1, feeding a first subgroup (i=1) of said image signal IS1 to a corresponding first subgroup of first anode segments (5a), meanwhile holding all other anode segments at essentially equal potentials. This invention also relates to a device for use in the above method.
A method of driving a display device (8) comprising a layer of organic electroluminescent material (4, 5), such as a light-emitting polymer or a small molecule compound, said layer being sandwiched between an anode (5) and a cathode (6), said anode comprising a plurality of separated anode segments (5′), the method comprising the steps of:
A display device comprising a light-emitting layer (4, 5), such as a light-emitting polymer or a small molecule compound layer, sandwiched between a first and a second electrode structure (5,6), characterized in that said first electrode structure, constituting an anode structure (5), comprises a plurality of separated anode segments (5′) which are divided into N subgroups (5a, 5b), said subgroups being such that each anode segment in each subgroup is surrounded by anode segments which are not members of the same subgroup, essentially each anode segment (5′) of the display device (8) being a member of one of said subgroups (5a, 5b), wherein said display device (8) further comprises a signal selector assembly (7) which is connected to each anode segment (5′), said signal selector assembly being arranged to provide the anode segments of a single subgroup (5a, 5b) with image information signals, while holding the remaining anode segments at equal potentials.
Dependencies are inferred from the claim text.