Active matrix electroluminescent display device
AssigneeKoninklijke Philips Electronics N. V.
InventorsAlan G Knapp, Iain M. Hunter
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Abstract
An active matrix electroluminescent display device has an array of pixels (10), each pixel having a plurality of current-driven display elements (11a–d), for example comprising organic electroluminescent material, connected in a series arrangement with one another and with drive means (12) operable to control the current through the respective series arrangement. By sub-dividing each pixel in this way, the high voltage drops, that can occur along power supply lines, are reduced thus improving the uniformity of the light outputs from the display elements across the display area.
Claims16
An active matrix electroluminescent display device comprising:
- a matrix array of pixels, each pixel including
- a plurality of electroluminescent display elements that are connected in series with each other, and
- a driver that is configured to control current through each of the plurality of display elements in accordance with drive signals applied to the driver,
- wherein
- the plurality of display elements and the driver of each pixel are connected in a series arrangement.
Dependencies are inferred from the claim text.