Liquid crystal display device

US8928645B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8928645-B2
Application numberUS-201113109496-A
CountryUS
Kind codeB2
Filing dateMay 17, 2011
Priority dateMay 21, 2010
Publication dateJan 6, 2015
Grant dateJan 6, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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In a liquid crystal display device, amplitude voltage of an image signal written into a signal line can be decreased. A liquid crystal display device in which frame inversion driving is performed includes pixels each including a liquid crystal element and a transistor that controls voltage applied to a first electrode of the liquid crystal element. A scan line is electrically connected to gates of transistors in pixels in a corresponding row. A common line is electrically connected to second electrodes of liquid crystal elements in pixels in the corresponding row. In a first frame period, a first potential is sequentially supplied to the common lines in synchronization with sequential selection of the scan lines. In a second frame period adjacent to the first frame period, a second potential different from the first potential is sequentially supplied to the common lines in synchronization with sequential selection of the scan lines.

First claim

Opening claim text (preview).

What is claimed is: 1. A liquid crystal display device comprising: pixels arranged in matrix, one of the pixels comprising a liquid crystal element and a transistor which controls a voltage applied to a first electrode of the liquid crystal element; common lines, one of the common lines directly connected to the liquid crystal element; scan lines; a common line driver circuit connected to the common lines; and a scan line driver circuit connected to the scan lines, where…

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What does patent US8928645B2 cover?
In a liquid crystal display device, amplitude voltage of an image signal written into a signal line can be decreased. A liquid crystal display device in which frame inversion driving is performed includes pixels each including a liquid crystal element and a transistor that controls voltage applied to a first electrode of the liquid crystal element. A scan line is electrically connected to gates…
Who is the assignee on this patent?
Miyake Hiroyuki, Kusunoki Koji, Semiconductor Energy Lab
What technology area does this patent fall under?
Primary CPC classification G09G3/3655. 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).