Displaying device, driving method and driver thereof

A driving method and technology of a driving device, applied in the field of pixel circuits, capable of solving problems such as unevenness of display brightness
CN1530904AInactive Publication Date: 2004-09-22INNOLUX CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INNOLUX CORP
Publication Date
2004-09-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

A pixel circuit includes a light emitting device, a storage device configured to represent a level of illumination, and a driving device used to drive the light emitting device. Configuring the storage device includes changing a voltage difference across the storage device to a level larger than a threshold voltage of the driving device. The driving device reduces driving of the light emitting device while the storage device is being configured. After the storage device has been configured, the driving device is permitted to drive the light emitting device to emit light having a luminance level corresponding to the level of illumination represented by the storage device.
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Description

technical field

[0001] The present invention relates to a driving circuit of a display, and in particular to a pixel circuit (Pixel Circuit) of a display. Background technique

[0002] Generally, an active matrix organic light emitting diode (Organic Light Emitting Diode; OLED) display includes a pixel circuit array forming a pixel row (Row) and a pixel column (Column) of the display. Each pixel circuit includes an OLED controlled by an active device such as a driving transistor. The OLED includes a luminescent substance that emits light when an electric current is introduced. The pixel circuit includes a storage capacitor for storing a voltage corresponding to the required brightness of the pixel. The drive transistor supplies the OLED current according to the voltage stored in the capacitor so that the OLED can achieve the desired operating brightness.

[0003] Traditional active-matrix OLEDs do not have a backlight, so drive transistors are used to drive these OLEDs wh...

Claims

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