公开(公告)号：US20150185956A1

公开(公告)日：2015-07-02

申请号：US14421461

申请日：2013-08-12

申请人： Sharp Kabushiki Kaisha

发明人： Kazuya Takayama ,  Kenji Maeda ,  Masayuki Natsumi ,  Tatsuo Watanabe ,  Yuichi Sato ,  Tetsuya Umekida

IPC分类号： G06F3/041 ,  G06F3/044

CPC分类号： G06F3/0418 ,  G02F1/13338 ,  G06F1/3262 ,  G06F3/044 ,  H01L27/323

摘要： A touch panel driving device includes: a noise detection section (43) that detects the presence or absence of at least external noise of an input operation performed on a touch panel (30); and a liquid crystal drive parameter setting section (51) that, in a case where the presence of external noise has been detected by the noise detection section (43), executes a process for reducing the external noise by adjusting a cycle or duration of a 1H period.

摘要翻译： 触摸面板驱动装置包括：噪声检测部，其检测在触摸面板（30）上进行的输入操作的至少外部噪声的存在或不存在; 以及液晶驱动参数设定部（51），在所述噪声检测部（43）检测出外部噪声的情况下，通过调整所述外部噪声的周期或持续时间来执行减少外部噪声的处理 1H期。

公开(公告)号：US09823777B2

公开(公告)日：2017-11-21

申请号：US14421461

申请日：2013-08-12

申请人： Sharp Kabushiki Kaisha

发明人： Kazuya Takayama ,  Kenji Maeda ,  Masayuki Natsumi ,  Tatsuo Watanabe ,  Yuichi Sato ,  Tetsuya Umekida

IPC分类号： G06F3/041 ,  G06F3/044 ,  G06F1/32 ,  G02F1/1333 ,  H01L27/32

CPC分类号： G06F3/0418 ,  G02F1/13338 ,  G06F1/3262 ,  G06F3/044 ,  H01L27/323

摘要： A touch panel driving device includes: a noise detection section (43) that detects the presence or absence of at least external noise of an input operation performed on a touch panel (30); and a liquid crystal drive parameter setting section (51) that, in a case where the presence of external noise has been detected by the noise detection section (43), executes a process for reducing the external noise by adjusting a cycle or duration of a 1H period.

公开(公告)号：US09824651B2

公开(公告)日：2017-11-21

申请号：US14443446

申请日：2013-11-14

申请人： Sharp Kabushiki Kaisha

发明人： Tetsuya Umekida ,  Kenji Maeda ,  Tatsuo Watanabe ,  Masayuki Natsumi ,  Yuichi Sato ,  Kazuya Takayama

IPC分类号： G09G3/36 ,  G09G5/00 ,  H04N21/426 ,  H04N21/4402 ,  H04N21/443

CPC分类号： G09G3/3611 ,  G09G3/3607 ,  G09G3/3614 ,  G09G3/3696 ,  G09G5/006 ,  G09G2310/0224 ,  G09G2310/0229 ,  G09G2320/0673 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/02 ,  G09G2340/0414 ,  G09G2340/0421 ,  G09G2340/0435 ,  G09G2350/00 ,  G09G2370/04 ,  H04N21/42653 ,  H04N21/4402 ,  H04N21/4436

摘要： A display device disclosed includes a liquid crystal panel (6), and an image optimization circuit (4) for switching, in accordance with an update frequency of image data, between (i) a first mode in which a liquid crystal driver (7) is driven at a first driving frequency and (ii) a second mode in which the liquid crystal driver (7) is driven at a second driving frequency lower than the first driving frequency. The display device can therefore be used even in a case where a transmission path for image data is limited and optimally display high-resolution image data with reduced electric power consumption.