发明授权
- 专利标题: Flat panel display drive circuit with switched drive current
- 专利标题(中): 具有开关驱动电流的平板显示驱动电路
-
申请号: US77791申请日: 1993-06-15
-
公开(公告)号: US5387844A公开(公告)日: 1995-02-07
- 发明人: Jim J. Browning
- 申请人: Jim J. Browning
- 申请人地址: ID Boise
- 专利权人: Micron Display Technology, Inc.
- 当前专利权人: Micron Display Technology, Inc.
- 当前专利权人地址: ID Boise
- 主分类号: G09G3/22
- IPC分类号: G09G3/22 ; G09G3/10
摘要:
A Field Emission Display ("FED") is disclosed having a brightness to project images. To achieve this benefit, the FED includes a pixelator which coupled to a display for displaying and projecting the image. By design, the pixelator conducts a drive current passing through the display grid corresponding to a degree of brightness in the resulting panel display. A first resistor having a first value is coupled between the pixelator and a voltage node or ground. Moreover, a second resistor having a second value at most one half of the first value is employed. A switch for connecting the first resistor in parallel with the second resistor is closed when a control signal is received when the switch is enabled, the equivalent resistance between the pixelator and a voltage node or ground is substantially reduced. In another embodiment, a tapped resistor replaces the first resistor and the second resistor. When the control signal is received, a portion of the drive current is shunted through the switch.
公开/授权文献
- US4851825A Grayscale character generator and method 公开/授权日:1989-07-25
信息查询
IPC分类: