Title:
LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR CONTROLLING SAME
Document Type and Number:
WIPO Patent Application WO/2013/183509
Kind Code:
A1
Abstract:
Provided is a liquid crystal display device such that it is possible to suppress degradation of image quality during movie display or three-dimensional display without causing gradational brightness irregularities.
Writing of an image to be displayed is sequentially performed from one side of a panel to the other side thereof during each frame period, and writing of a black image is sequentially performed from the one side of the panel to the other side thereof during the vertical blanking interval in each frame period. A plurality of LEDs composing a backlight are divided into a plurality of segments (S1 to S7) so that a group of LEDs arrayed in a line in the direction in which scanning signal lines extend belong to the same segment. A segment lighting control circuit (42) in a backlight control circuit (40) controls emission intensities of the LEDs segment by segment so that the intensity of light irradiating the panel increases gradually from the one side of the panel to the other side thereof.
More Like This:
Inventors:
IRIE KENTAROH
KAWABATA MASAE
MATSUMOTO SHINJI
KAWABATA MASAE
MATSUMOTO SHINJI
Application Number:
PCT/JP2013/064854
Publication Date:
December 12, 2013
Filing Date:
May 29, 2013
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
G09G3/36; G02F1/13; G02F1/133; G09G3/20; G09G3/34; H04N5/66; H04N13/04
Domestic Patent References:
| WO2011058728A1 | 2011-05-19 |
Foreign References:
| JP2004302405A | 2004-10-28 | |||
| JP2001318363A | 2001-11-16 | |||
| JP2011053373A | 2011-03-17 | |||
| JP2010060972A | 2010-03-18 | |||
| JP2012078821A | 2012-04-19 | |||
| JP2003280600A | 2003-10-02 |
Attorney, Agent or Firm:
SHIMADA, AKIHIRO (JP)
Akihiro Shimada (JP)
Akihiro Shimada (JP)
Download PDF: