Display apparatus, display apparatus driving method and electronic equipment

Abstract

The invention discloses a display device, a driving method of the display device and an electric device containing the display device. The invention can assure the sufficient time for implementing the correcting action during the correcting period of the threshold value correction and the transferring correction. In the EL display device with the correcting functions of the threshold value correction and the transferring correction, the invention implements the correction action of the threshold value correction and the transferring correction in 1H period corresponding to the pixel of each correction; before processing the correction object pixel during 1H period, the invention respectively fixes the grid level of the transistor Vg and the source electrode Vs to the action of the predetermined level and the threshold value correction preparation.

Description

technical field [0001] The present invention relates to a display device, a driving method of the display device, and an electronic device, and in particular to a planar (flat panel) display device arranged in a matrix (matrix form) including pixels of photoelectric elements. A driving method of a display device and electronic equipment including the display device. Background technique [0002] Recently, in the field of display devices for displaying images, planar display devices are arranged in which pixels including photoelectric elements arranged in a matrix form are arranged. So-called current-driven photoelectric elements that change luminance, such as organic EL (Electro Luminescence: electroluminescence) elements that emit light when an electric field is applied to an organic thin film, have been developed and commercialized. [0003] Organic EL display devices have the following features. That is, since the organic EL element can be driven with an applied voltage...

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Problems solved by technology

[0013] When these four operations are performed for each pixel row during a period of 1H (H is the horizontal scanning period / horizontal synchronizing period), it is difficult to ensure sufficient time for each correcting operation to be reliably performed as the threshold value correction period and the mobility correction period. The problem

In particular, when the number of pixels tends to increase year by year in response to high-definition display devices, it is currently difficult to ensure a sufficient threshold value correction period and a mobility correction period because the time of 1H is shortened accordingly. time

[0014] In addition, here, the case of an organic EL display device having two correction functions of threshold value correction and mobility correction is taken as an example, but even in the case of an organic EL display device having only a threshold value correction function, since the time of 1H is shortened, Therefore, the time that can be ensured as the threshold correction period is also shortened

[0015] If sufficient time cannot be secured for the correction period of the threshold value correction or the respective correction periods of the threshold value correction and the mobility correction, the threshold value correction operation or each correction operation of the threshold value correction and the mobility correction cannot be reliably performed.

As a result, the change in the current value of each pixel through which the drive transistor flows cannot be sufficiently suppressed. Therefore, as described above, even if the same voltage is applied to the gate of the drive transistor, light emission of the organic EL element occurs between pixels. The characteristics of brightness are not uniform, which damages the uniformity of the picture

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