发明名称 |
Display device and driving method thereof |
摘要 |
A method of driving an OLED display includes: during a scanning period of a first frame, turning off a relay transistor and turning on a switching transistor to enable a second data voltage applied to a data line to be stored in a first capacitor; and during a light emitting period of the first frame, performing an operation to turn on a light emitting transistor and a compensation transistor to enable a voltage into which a first data voltage and a threshold voltage of a driving transistor are reflected to be applied to a second node for enabling the OLED to emit light by a driving current which flows into a driving transistor. The scanning period and the light emitting period temporally overlap each other. |
申请公布号 |
US9514677(B2) |
申请公布日期 |
2016.12.06 |
申请号 |
US201314041098 |
申请日期 |
2013.09.30 |
申请人 |
SAMSUNG DISPLAY CO., LTD. |
发明人 |
Chung Bo-Yong;Lee Hae-Yeon;Kim Yong-Jae |
分类号 |
G09G3/3216;G09G3/32;G09G3/00 |
主分类号 |
G09G3/3216 |
代理机构 |
F. Chau & Associates, LLC |
代理人 |
F. Chau & Associates, LLC |
主权项 |
1. A display device comprising:
a plurality of pixels, wherein each of the plurality of pixels comprises:
a switching transistor comprising a gate electrode to which a scan signal is applied, an electrode directly connected to a data line receiving a data voltage, and another electrode connected to a first node;a relay transistor comprising a gate electrode to which a writing signal is applied, an electrode connected to the first node, and another electrode connected to a second node;a driving transistor comprising a gate electrode connected to the second node, an electrode connected to a third node, and another electrode connected to an organic light emitting diode;a first capacitor comprising an electrode connected to the third node and another electrode connected to a fourth node;a compensation transistor comprising a gate electrode to which a light emitting signal is applied, an electrode connected to the second node, and another electrode connected to the fourth node;a reset transistor comprising a gate electrode to which a reset signal is applied, an electrode directly connected to the data line, and another electrode connected to the fourth node; anda light emitting transistor comprising a gate electrode to which the light emitting signal is applied, one electrode connected to a first power source voltage, and another electrode connected to the third node. |
地址 |
Yongin, Gyeonggi-Do KR |