Liquid crystal display device

US8928574B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8928574-B2
Application numberUS-201113695702-A
CountryUS
Kind codeB2
Filing dateJul 4, 2011
Priority dateJul 7, 2010
Publication dateJan 6, 2015
Grant dateJan 6, 2015

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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Abstract

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Provided is a liquid crystal display device wherein it is possible to specifically prevent the pseudo contouring of an area in which an image having a large motion vector is displayed, such as a telop area. A telop area (R 1 ) (an example of a component image area) in which the motion vector is set in advance and which has a magnitude greater than or equal to a predetermined magnitude is detected. The intermittent lighting timing of an illumination portion is controlled in a manner such that the turn-off period having a predetermined length is set between the point in which the detected telop area (R 1 ) writes a video signal to a liquid crystal element and the point in which the liquid crystal element responds.

First claim

Opening claim text (preview).

The invention claimed is: 1. A liquid crystal display device that has a backlight device including two illuminating portions for individually illuminating each of partial areas which is obtained by dividing a display area of a liquid crystal panel with a plurality of liquid crystal elements into two parts from behind, a backlight control portion sequentially intermittently lighting each of the illuminating portions in conjunction with writing of a video signal to the liquid crystal…

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What does patent US8928574B2 cover?
Provided is a liquid crystal display device wherein it is possible to specifically prevent the pseudo contouring of an area in which an image having a large motion vector is displayed, such as a telop area. A telop area (R 1 ) (an example of a component image area) in which the motion vector is set in advance and which has a magnitude greater than or equal to a predetermined magnitude is detect…
Who is the assignee on this patent?
Takaya Mamoru, Takakura Eiichi, Sharp Kk
What technology area does this patent fall under?
Primary CPC classification G09G3/3648. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).