发明名称 |
Liquid crystal display device and method of driving the same |
摘要 |
Provided is a liquid crystal display device including: a plurality of pixel electrodes to which a display voltage is supplied; a common electrode forming first capacitance with the plurality of pixel electrodes, and having a common voltage supplied thereto; a plurality of sensing electrodes forming second capacitance with the common electrode, and having a touch driving signal supplied thereto; and a touch controller supplying the touch driving signal, wherein a voltage of the common electrode includes a first ripple component that is generated due to variation in the display voltage and a second ripple component that is generated due to variation in the touch driving signal, and the touch controller supplies the touch driving signal such that a polarity of the second ripple component is determined based on a polarity of the first ripple component. |
申请公布号 |
US9600130(B2) |
申请公布日期 |
2017.03.21 |
申请号 |
US201514796870 |
申请日期 |
2015.07.10 |
申请人 |
Samsung Display Co., Ltd. |
发明人 |
Kim Jeong Young;Lee Myeong Eon |
分类号 |
G06F3/041;G06F3/044 |
主分类号 |
G06F3/041 |
代理机构 |
Innovation Counsel LLP |
代理人 |
Innovation Counsel LLP |
主权项 |
1. A liquid crystal display device comprising:
a plurality of pixel electrodes to which a display voltage is supplied; a common electrode forming first capacitance with the plurality of pixel electrodes, and having a common voltage supplied thereto; a plurality of sensing electrodes forming second capacitance with the common electrode, and having a touch driving signal supplied thereto; and a touch controller supplying the touch driving signal, wherein a voltage of the common electrode includes a first ripple component that is generated due to variation in the display voltage and a second ripple component that is generated due to variation in the touch driving signal, and, the touch controller supplies the touch driving signal such that a polarity of the second ripple component is determined based on a polarity of the first ripple component. |
地址 |
KR |