发明授权
US6075323A Method for reducing charge accumulation in a field emission display
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用于减少场发射显示中的电荷累积的方法
- 专利标题: Method for reducing charge accumulation in a field emission display
- 专利标题(中): 用于减少场发射显示中的电荷累积的方法
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申请号: US9233申请日: 1998-01-20
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公开(公告)号: US6075323A公开(公告)日: 2000-06-13
- 发明人: Robert T. Smith , Johann Trujillo , Chenggang Xie
- 申请人: Robert T. Smith , Johann Trujillo , Chenggang Xie
- 申请人地址: IL Schaumburg
- 专利权人: Motorola, Inc.
- 当前专利权人: Motorola, Inc.
- 当前专利权人地址: IL Schaumburg
- 主分类号: H01J29/87
- IPC分类号: H01J29/87 ; G09G3/20 ; G09G3/22 ; H01J29/00 ; H01J29/02 ; H01J29/86 ; H01J31/12 ; H05B37/02
摘要:
A method for reducing charge accumulation in a field emission display (100) includes the steps of causing a plurality of electron emitters (114) to emit electrons (132) to reduce the potential at an anode (124) of the field emission display (100). Upon the reduction of the potential at the anode (124), the electrons (132) neutralize a positively electrostatically charged surface (129) of a spacer (130). The anode potential is dropped by providing a resistor (127) in series with a voltage source (126) connected to the anode (124). The anode potential is reduced by causing the electron emitters (114) to emit simultaneously to provide a pull-down current (128) at the anode (124). The voltage at the anode (124) is reduced to a value that causes a sufficient flux of electrons (132) to be attracted to the charged surfaces (129) for neutralizing them.
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