发明申请
- 专利标题: LIQUID CRYSTAL DISPLAY DEVICE
- 专利标题(中): 液晶显示装置
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申请号: US12203953申请日: 2008-09-04
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公开(公告)号: US20090066687A1公开(公告)日: 2009-03-12
- 发明人: Ryutaro Oke , Kikuo Ono , Ikuko Mori , Masashi Baba , Yuya Sato
- 申请人: Ryutaro Oke , Kikuo Ono , Ikuko Mori , Masashi Baba , Yuya Sato
- 专利权人: Hitachi Displays. Ltd.
- 当前专利权人: Hitachi Displays. Ltd.
- 优先权: JP2007-230465 20070905
- 主分类号: G06F3/038
- IPC分类号: G06F3/038 ; G02F1/00 ; G09G3/36
摘要:
(Object) To provide a liquid crystal display device which simultaneously uses a method for simultaneously driving two screens and a method for driving scan-back light.(Means for Achieving Object) A number of first scanning lines are divided into M groups when M is an integer of 2 or more (M≧2), a number of second scanning lines are divided into N groups when N is an integer of 2 or more (N≧2), and the jth region of the backlight (1≦j≦M) is turned off when the first scanning line driving circuit is supplying a selective scanning voltage to the first scanning lines within the jth group of the number of first scanning lines, the jth region of the backlight is turned on when no selective scanning voltage is supplied to the first scanning lines within the jth group, the kth region of the backlight (1≦k≦N) is turned off when at least one of the second scanning line driving circuits supplies a selective scanning voltage to the second scanning lines within the kth group of the number of second scanning lines, and the kth region of the backlight is turned on when no selective scanning voltage is supplied to the second scanning lines within the kth group.
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