发明申请
- 专利标题: Electro-optical device, method of checking the same , and electronic apparatus
- 专利标题(中): 电光装置,检查方法以及电子装置
-
申请号: US11103531申请日: 2005-04-12
-
公开(公告)号: US20050258769A1公开(公告)日: 2005-11-24
- 发明人: Yoichi Imamura
- 申请人: Yoichi Imamura
- 申请人地址: JP Tokyo
- 专利权人: SEIKO EPSON CORPORATION
- 当前专利权人: SEIKO EPSON CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP2004-150462 20040520
- 主分类号: G01R31/00
- IPC分类号: G01R31/00 ; G09F9/00 ; G09G3/00 ; G09G3/20 ; G09G3/30 ; G09G3/32 ; G09G3/36 ; H01L51/50 ; H05B33/08 ; H05B33/10 ; H05B33/12 ; H05B33/14 ; H05B37/00 ; H05B37/03
摘要:
To effectively check a plurality of unit circuits, each including an electro-optical element and a control circuit. Each unit circuit U includes an OLED element and a control circuit for controlling operation of the OLED element. A check signal for tentatively driving the OLED element is input to a check terminal TPa1. A switching element is connected to a check unit circuit Ut, located at a corner of an effective region A, of the plurality of unit circuits U. The switching element is changed from an on state where the OLED element in the check unit circuit Ut is electrically isolated from the check terminal TPa1 to an off state where the OLED element in the check unit circuit Ut is electrically connected to the check terminal TPa1.