发明名称 |
Embedded optical induction input device and method of implementing the same |
摘要 |
An embedded optical induction input device and method of implementing the same. Such a device includes a light sensing circuit and a conversion circuit. The light sensing circuit generates an induced current signal based on the variations of the intensity of light irradiation received as caused by a touch-control-position event; and the conversion circuit is connected to the light sensing circuit and receives an induced current derived therefrom. The conversion circuit is provided with a first transistor and a second transistor coupled together, that are driven by a positive and a negative biases having the same period but different phases, thus the induced current signals are converted into induced voltage signals based on the alternative turn-on's and turn-off's of the first transistor and the second transistor.
|
申请公布号 |
US8477117(B2) |
申请公布日期 |
2013.07.02 |
申请号 |
US20090370708 |
申请日期 |
2009.02.13 |
申请人 |
CHEN PO-YANG;SHIH PO-SHENG;HANNSTAR DISPLAY CORPORATION |
发明人 |
CHEN PO-YANG;SHIH PO-SHENG |
分类号 |
G06F3/042 |
主分类号 |
G06F3/042 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|