发明名称 |
Active matrix el display and its driving method |
摘要 |
A unit pixel (10) includes a plurality of current controlling elements (Tr2a-Tr2d) having controlling terminal and connected to a single EL element (11), and switching elements (Tr1a-Tr1d) provided to the respective current controlling elements in order to switch between application and cutoff of a digital image signal with respect to the controlling terminals in accordance with the condition of a scanning signal. Each of the current controlling elements is controlled by a voltage of the digital image signal so as to take an OFF state for cutting off a supply of a driving current to the EL element or an ON state for supplying the EL element with a driving current corresponding to the voltage of the digital image signal, and a value of the current flowing in the EL element is the sum value of currents supplied from the respective current controlling elements in the ON state. Based on a combination of the current controlling elements in the ON state, the current supplied to the EL element is controlled to be a value corresponding to the gradation.
|
申请公布号 |
US2004196218(A1) |
申请公布日期 |
2004.10.07 |
申请号 |
US20030481898 |
申请日期 |
2003.12.23 |
申请人 |
SENDA KOUJI;NANNO YUTAKA;TSUTSU HIROSHI |
发明人 |
SENDA KOUJI;NANNO YUTAKA;TSUTSU HIROSHI |
分类号 |
G09G3/32;(IPC1-7):G09G3/30 |
主分类号 |
G09G3/32 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|