Title:
液晶表示装置
Document Type and Number:
Japanese Patent JP3980910
Kind Code:
B2
Abstract:
A liquid crystal display device includes pixels having pixel electrodes and a common electrode. A liquid crystal material is held between the pixel electrodes and common electrode. Pixel switches are provided to supply video signals to the pixel electrodes. A plurality of memories are provided to store the video signals in a digital form supplied from the switches to the pixel electrodes. Connection controllers connect the memories to the pixel electrodes and periodically reverse polarities of the video signals output from the memories to the pixel electrodes with respect to potential of the common electrode. A potential setting terminal is provided and auxiliary capacitor lines connected to the potential setting terminal constitute capacitive coupling with the pixel electrodes. Separation circuits are provided to keep the auxiliary capacitor lines in an electrically floating state by electrically disconnecting the auxiliary capacitor lines from the potential setting terminal while the connection controllers connect the memories to the pixels.
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Inventors:
Norio Nakamura
Application Number:
JP2002067498A
Publication Date:
September 26, 2007
Filing Date:
March 12, 2002
Export Citation:
Assignee:
Toshiba Matsushita Display Technology Co., Ltd.
International Classes:
G02F1/133; G09G3/36; G09G3/20
Domestic Patent References:
| JP7072511A | ||||
| JP2001264814A | ||||
| JP8286170A | ||||
| JP6313876A |
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto