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公开(公告)号:US20160119563A1
公开(公告)日:2016-04-28
申请号:US14878180
申请日:2015-10-08
Inventor: TAKAYOSHI YAMADA , MASAYUKI TAKASE , TOKUHIKO TAMAKI , MASASHI MURAKAMI
IPC: H04N5/372 , H04N5/359 , H01L27/146 , H04N5/378
CPC classification number: H04N5/359 , H01L27/14603 , H01L27/14609 , H01L27/1461 , H01L27/14612 , H01L27/14623 , H01L27/14636 , H01L27/14645 , H01L27/14667 , H04N5/23232 , H04N5/265 , H04N5/357 , H04N5/361 , H04N5/374 , H04N5/378
Abstract: An imaging device comprises at least one unit pixel cell. Each of them comprises: a photoelectric conversion layer having a first and second surfaces; a pixel electrode and a shield electrode located on the first surface and separated from each other, a shield voltage being applied to the shield electrode; an upper electrode located on the second surface and opposing to the pixel electrode and the shield electrode, a counter voltage being applied to the upper electrode; a charge accumulation node electrically connected to the pixel electrode; and a charge detection circuit electrically connected to the charge accumulation node. The charge detection circuit includes a reset transistor that sets the pixel electrode at an initialization voltage at predetermined timing. An absolute value of a difference between the shield voltage and the counter voltage is larger than an absolute value of a difference between the initialization voltage and the counter voltage.
Abstract translation: 成像装置包括至少一个单位像素单元。 它们各自包括:具有第一和第二表面的光电转换层; 位于第一表面上并分离的像素电极和屏蔽电极,屏蔽电压施加到屏蔽电极; 位于所述第二表面上并与所述像素电极和所述屏蔽电极相对的上电极,对电压施加到所述上电极; 电连接到像素电极的电荷累积节点; 以及与电荷累积结点电连接的电荷检测电路。 电荷检测电路包括将像素电极设置在预定定时的初始化电压的复位晶体管。 屏蔽电压和对置电压之间的差的绝对值大于初始化电压和反电压之差的绝对值。