Display panel and driving method thereof, and display apparatus
AssigneeBoe Technology Group Co., Ltd.
InventorsWeixing LIU, Tieshi WANG, Wei QIN, Chunfang ZHANG
Life of this patent
Estimating the term…
Abstract
A display panel and a driving method thereof, and a display apparatus are provided. In the present disclosure, external compensation circuits electrically connected to pixel circuits are added. The external compensation circuits are configured to adjust anode voltages of light emitting devices to cause the anode voltages of the light emitting devices to be consistent with voltages of data voltage ends.
Claims18
A display panel, comprising a display region and a non-display region surrounding the display region, wherein the display region comprises a plurality of pixel regions in an array distribution;
- each of the pixel regions comprises a pixel circuit and a light emitting device;
- the non-display region comprises an external compensation circuit;
- each column of pixel circuits is electrically connected to a same external compensation circuit, and different columns of pixel circuits are electrically connected to different external compensation circuits;
- the pixel circuit comprises a driving transistor electrically connected to the light emitting device;
- a first positive input end of the external compensation circuit is electrically connected to anodes of all light emitting devices;
- a first negative input end of the external compensation circuit is electrically connected to a data voltage end;
- a first output end of the external compensation circuit is electrically connected to gates of all driving transistors;
- the external compensation circuit is configured to adjust an anode voltage of the light emitting device to cause the anode voltage of the light emitting device to be consistent with a voltage of the data voltage end and to cause the driving transistor to work in a linear region.
A display apparatus, comprising a display panel, wherein the display panel comprises a display region and a non-display region surrounding the display region;
- the display region comprises a plurality of pixel regions in an array distribution;
- each of the pixel regions comprises a pixel circuit and a light emitting device;
- and the non-display region comprises an external compensation circuit;
- each column of pixel circuits is electrically connected to a same external compensation circuit, and different columns of pixel circuits are electrically connected to different external compensation circuits;
- the pixel circuit comprises a driving transistor electrically connected to the light emitting device;
- a first positive input end of the external compensation circuit is electrically connected to anodes of all light emitting devices;
- a first negative input end of the external compensation circuit is electrically connected to a data voltage end;
- a first output end of the external compensation circuit is electrically connected to gates of all driving transistors;
- the external compensation circuit is configured to adjust an anode voltage of the light emitting device to cause the anode voltage of the light emitting device to be consistent with a voltage of the data voltage end and to cause the driving transistor to work in a linear region.
Dependencies are inferred from the claim text.