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Active-matrix-driven display device

  • US 20060022305A1
  • Filed: 07/29/2005
  • Published: 02/02/2006
  • Est. Priority Date: 07/30/2004
  • Status: Abandoned Application
First Claim
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1. An active-matrix-driven display device including a display panel composed of a plurality of pixels arrayed in a matrix, the display panel being connected to a scan driver for feeding a scan voltage to each pixel and a data driver for feeding a data voltage to each pixel, the display panel being so driven that each frame period contains at least a reset period and a light emission period, each pixel being built with a pixel circuit including:

  • a display element that emits light when fed with electric power;

    a writing transistor that has a first electrode thereof connected to the data driver and that is turned on when a scan voltage having a predetermined level is applied thereto from the scan driver;

    a driving transistor that drives, according to a voltage applied to a control electrode thereof, the display element during the light emission period;

    a first capacitive element that is provided in series with a line connecting a second electrode of the writing transistor to the control electrode of the driving transistor; and

    an adjustment transistor that is turned on during the reset period to feed to a writing-transistor-side electrode of the first capacitive element a voltage commensurate with an electrode-to-electrode voltage of the display element, wherein the active-matrix-driven display device further includes a control signal generation circuit that, during the reset period, for each pixel circuit, lets a voltage commensurate with a light emission start electrode-to-electrode voltage of the display element be held in the first capacitive element.

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