发明申请
- 专利标题: Reducing Scrolling Effect for LCD Lamps
- 专利标题(中): 降低LCD灯的滚动效果
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申请号: US12037762申请日: 2008-02-26
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公开(公告)号: US20090213098A1公开(公告)日: 2009-08-27
- 发明人: Vincent Du , Marcelo Goto , Khoua Vang , Yoshiaki Shimizu
- 申请人: Vincent Du , Marcelo Goto , Khoua Vang , Yoshiaki Shimizu
- 申请人地址: JP Tokyo US NJ Park Ridge
- 专利权人: SONY CORPORATION,SONY ELECTRONICS INC.
- 当前专利权人: SONY CORPORATION,SONY ELECTRONICS INC.
- 当前专利权人地址: JP Tokyo US NJ Park Ridge
- 主分类号: G09G5/00
- IPC分类号: G09G5/00
摘要:
A liquid crystal display (LCD) device's microcontroller is used drive an LCD lamp ballast such that the scrolling effect from its light leakage may be reduced to a visually imperceptible level. A check may be performed of lamp's control status in order to verify the microcontroller's ability to properly and accurately control the lamp ballast. The microcontroller may then determine a frequency and duty cycle to use for the microcontroller's PWM control signal. Thereafter, the microcontroller may generate the PWM control signal in accordance with the determined frequency and duty cycle, and drive the lamp ballast using the control signal.
公开/授权文献
- US08736541B2 Reducing scrolling effect for LCD lamps 公开/授权日:2014-05-27