IMAGE DISPLAY AND DISPLAYING METHOD - MATSUSHITA ELECTRIC IND CO LTD

Title:

IMAGE DISPLAY AND DISPLAYING METHOD

Document Type and Number:

WIPO Patent Application WO/2002/077959

Kind Code:

A1

Abstract:

A liquid crystal display being displayed by a backlight (104) and comprising a circuit (101) for outputting a video signal while compressing in the time direction, an LCD controller (106) for driving a liquid crystal panel (105) based on a video signal compressed in the time direction, a source driver (107) and a gate driver (108), a circuit (2) for detecting the amount of movement of a display image based on the video signal, a circuit (4) generating PWM light control pulses of different frequencies depending on the detection results from the movement detecting circuit (2), and an inverter (103) for lighting the backlight (104) based on the light control pulse, wherein blur at the outline of a moving image is reduced and flicker of a still image can be reduced.

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Inventors:

FUNAMOTO TARO (JP)
MACHIDORI WATARU (JP)
ARIMOTO KATSUYUKI (JP)
OHTA YOSHIHITO (JP)
KOBAYASHI TAKAHIRO (JP)
KUMAMOTO YASUHIRO (JP)
KARIYA TETSUO (JP)

Application Number:

PCT/JP2002/002636

Publication Date:

October 03, 2002

Filing Date:

March 20, 2002

Export Citation:

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Assignee:

MATSUSHITA ELECTRIC IND CO LTD (JP)
FUNAMOTO TARO (JP)
MACHIDORI WATARU (JP)
ARIMOTO KATSUYUKI (JP)
OHTA YOSHIHITO (JP)
KOBAYASHI TAKAHIRO (JP)
KUMAMOTO YASUHIRO (JP)
KARIYA TETSUO (JP)

International Classes:

G02F1/133; G09G3/20; G09G3/34; G09G3/36; G02F1/13357; (IPC1-7): G09G3/36; G09G3/34; G09G3/20; G02F1/133

Foreign References:

JP2000267635A	2000-09-29
JP2000056738A	2000-02-25
JP2000293142A	2000-10-20
JPH05103314A	1993-04-23
JPH09127436A	1997-05-16
JPH0647989U	1994-06-28
JP2002123223A	2002-04-26
JP2001125066A	2001-05-11

Other References: