ORGANIC EL PANEL DRIVING DEVICE AND ORGANIC EL DEVICE

PROBLEM TO BE SOLVED: To provide an organic EL panel driving device and display device that are excellent in electric corrosion durability of an organic EL panel.SOLUTION: The present invention relates to an organic EL panel driving device 50 that drives an organic EL panel 10. The organic EL panel...

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1. Verfasser: TSUCHIDA MASATO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an organic EL panel driving device and display device that are excellent in electric corrosion durability of an organic EL panel.SOLUTION: The present invention relates to an organic EL panel driving device 50 that drives an organic EL panel 10. The organic EL panel driving device 50 is configured to connect at least one of scanning lines S1 to Sm to a ground, and supply a current to drive lines D1 to Dn corresponding to pixels E11 to Emn to be caused to emit light of a plurality of the drive lines D1 to Dn, and thereby conduct light-up processing for causing the pixels E11 to Emn to emit light to which the current is supplied, and, during at least the light-up processing, conduct electric corrosion counter-measure processing of supplying the current to the drive lines D1 to Dn corresponding to the pixels E11 to Emn not to emit light of the plurality of drive lines D1 to Dn for only a period in which potential not reaching a light emitting start voltage of the pixels E11 to Emn is applied.SELECTED DRAWING: Figure 2 【課題】有機ELパネルの電食耐久性を良好とする有機ELパネル用駆動装置及び表示装置を提供する。【解決手段】有機ELパネル10を駆動する有機ELパネル用駆動装置50である。有機ELパネル用駆動装置50は、走査ラインS1〜Smのうち少なくとも1つをグランドに接続しつつ、複数のドライブラインD1〜Dnのうち点灯させる画素E11〜Emnに対応するドライブラインD1〜Dnに電流を供給することで前記電流が供給される画素E11〜Emnを点灯させる点灯処理を行い、かつ、少なくとも前記点灯処理中に、複数のドライブラインD1〜Dnのうち非点灯とする画素E11〜Emnに対応するドライブラインD1〜Dnに、画素E11〜Emnの発光開始電圧に至らない電位が印加される期間だけ前記電流を供給する電食対策処理を行う。【選択図】図2