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Image display device and display method for image display device

專利號
US10867572B2
公開日期
2020-12-15
申請人
Panasonic Liquid Crystal Display Co., Ltd.（JP Hyogo）
發(fā)明人
Tatsuo Itoman; Satoshi Hirotsune
IPC分類
G09G3/36
技術領域
writing,pixel,row,line,in,driver,22a1,crystal,display,inversion
地域： Himeji

摘要

An image display device includes: a display; gate signal lines including a first pixel row and a second pixel row; a gate driver; data signal lines; a source driver; and a controller that determines whether the second pixel row has correlation with the first pixel row in an image. When determining that the second pixel row has the correlation with the first pixel row, the controller causes the source driver to supply the data voltage corresponding to the first pixel row, causes the gate driver to supply the gate signal to write the data voltage in the first pixel row, and causes the gate driver to supply the gate signal to write the data voltage corresponding to the first pixel row in the second pixel row.

說明書

As described above, liquid crystal display device 10b includes memory 40 (frame memory), so that the correlation of all lines can be compared. The pieces of processing in steps S147 and S148 may not be performed. For example, determination unit 32 may determine the correlation only on the reference line selected in step S110. However, in this case, the processing in FIG. 3 may be performed on the pixel row above the reference line in the scanning direction of the frame.

In the next frame, the pixel rows except for pixel rows 1 and 2 are set to the reference line. The selection of the pixel row serving as the reference line is randomly performed for each frame. The reference line may not sequentially be selected in the arrangement direction of the pixel rows, or may be sequentially selected.

The example in which controller 30b controls source driver 24 to perform the column inversion drive is described above. However, when source driver 24 is controlled to perform the row line inversion drive, the above processing is performed for each pixel row group (see pixel row group 22c in FIG. 6) having the same polarity of the data voltage.

權利要求

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