Patent ID: 9013373
Filing Date: 2015-04-21
Classification: G09G

Abstract:
1. An image display device comprising: a light emitting element emitting light when a voltage is applied thereto in a forward direction and accumulating electrical charge when a voltage is applied thereto in a reverse direction; a driver which has a control terminal, a first terminal and a second terminal, and which controls the current flowing between the first terminal and the second terminal by the voltage between the control terminal and the first terminal, to control the light emission of the light emitting element; a first capacitor having a first electrode and a second electrode, the first electrode being connected directly or indirectly to the control terminal of the driver, the second electrode being connected directly or indirectly to a signal line supplying the potential corresponding to an image data; and a second capacitor connected electrically in parallel to a light emitting element capacitor during a writing period, wherein a combination of the second capacitor and the light emitting element capacitor is connected electrically in series to the first capacitor during the writing period while the image data is written to the first capacitor through the signal line, wherein an electrical charge accumulated in the light emitting element and an electrical charge accumulated in the second capacitor are discharged to be supplied to the first capacitor during the writing period, wherein the second capacitor is connected to the first terminal of the driver at one side, and is connected to the second terminal of the driver at the other side, wherein the image display device further includes a switch which is arranged between the control terminal of the driver and the second capacitor, and which controls the conduction between the control terminal and the second capacitor, wherein the switch electrically connects the control terminal of the driver and the second capacitor during the writing period, and wherein the electrical charge accumulated in the second capacitor during a preparation period is supplied to the first capacitor during the writing period through the electrical connection between the control terminal of the driver and the second capacitor by the switch.