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US 2010/0073267 A1Published application
Image display device
AssigneeHitachi Displays, Ltd.
InventorsHajime Akimoto, Hiroshi Kageyama, Takeo Shiba
Life of this patent
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Abstract
Disclosed herewith an image display device capable of displaying high quality images and preferred for reducing the manufacturing cost. The image display device is provided with illuminating state controlling state for controlling the illuminating state or non-illuminating state and constant voltage supply for supplying a constant voltage to each pixel through a signal line when the illuminating state is selected for the pixel.
Claims6
An image display device comprising:
- a first pixel comprising a first electro-luminescent element driven to illuminate according to a first display signal voltage, a first driving TFT whose first current terminal is connected to a first terminal of the first electro-luminescent element, and a first storage capacitor whose first terminal is connected to a gate terminal of the first driving TFT;
- a second pixel comprising a second electro-luminescent element driven to illuminate according to a second display voltage, a second driving TFT whose current terminal is connected to a first terminal of the second electro-luminescent element, and a second storage capacitor whose first terminal is connected to a gate of the second driving TFT;
- a first power supply line supplying a supply voltage to the first electro-luminescent element via a channel of the first driving TFT or supplying the supply to the second electro-luminescent element via a channel of the second driving TFT;
- and
- a power supply line scanning circuit scanning the first power supply line.
2 more elements
Dependencies are inferred from the claim text.