Display device and method of driving the same
OwnerKoji Mametsukainventor
Life of this patent
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Abstract
A display device includes an organic EL panel having a plurality of pixels arrayed in a matrix. Each pixel includes an organic EL element, a drive control element that causes a current to flow in the organic EL element according to a pixel video signal, a capacitor, which is connected to a control terminal of the drive control element, and that temporarily stores the potential difference between the threshold voltage of the drive control element and a reset signal, and a pixel switch connected via the capacitor to the control terminal of the drive control element. In particular, the display device includes a reset signal supply section that supplies to the pixels different reset signals associated with the main wavelengths of light to be emitted from the organic EL elements.
Claims5
A display device comprising:
- an array section having a plurality of pixels arrayed in a matrix, each pixel including a luminous element, a drive control element that causes a current to flow in said luminous element according to a pixel video signal, a capacitor, which is connected to a control terminal of said drive control element, and that temporarily stores the potential difference between the threshold voltage of said drive control element and a reset signal, and a pixel switch connected via said capacitor to the control terminal of the drive control element;
- and
- a reset signal supply section that supplies to the pixels different reset signals associated with the main wavelengths of light to be emitted from the luminous elements.
A method of driving a display device having a plurality of pixels, each pixel including a luminous element, a drive control element connected in series with said luminous element and a pixel switch connected via a capacitor to a control terminal of said-drive control element, comprising:
- applying a potential equal to the threshold voltage of said drive control element to one of electrodes of said capacitor;
- supplying to the other electrode of said capacitor a reset signal associated with the main wavelength of light to be emitted from said luminous element;
- and
- supplying a pixel video signal to the other electrode of said capacitor via said pixel switch in a state where said capacitor stores the potential difference between the reset signal and the threshold voltage.
Dependencies are inferred from the claim text.