| 发明名称 |
Method and apparatuses of transparent fingerprint imager integrated with touch display device |
| 摘要 |
The present invention describes a transparent fingerprint imaging apparatus wherein said apparatus comprises, a plurality of column lines, a plurality of scan lines, a plurality of data lines, and a plurality of fingerprint capacitance sensing cells wherein a fingerprint capacitance sensing cell further comprises, a fingerprint capacitor comprising a transparent capacitance detecting electrode and a transparent capacitance-detecting dielectric layer, a transparent reference capacitor coupled with said fingerprint capacitor with one electrode connecting to the fingerprint capacitor, and an amplification transparent TFT (thin-film transistor) wherein the gate electrode of the amplification transparent TFT connects to the transparent capacitance detecting electrode, one terminal of said amplification transparent TFT connects to a data line and the other terminal connects to a scan line. |
| 申请公布号 |
US8994690(B2) |
申请公布日期 |
2015.03.31 |
| 申请号 |
US201313757993 |
申请日期 |
2013.02.04 |
| 申请人 |
|
发明人 |
Shi Weidong;Lu Yang |
| 分类号 |
G06F3/044;G06F3/041;G06K9/00 |
主分类号 |
G06F3/044 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A transparent fingerprint imaging apparatus comprises, a plurality of column lines wherein each column line is coupled with a collection of fingerprint capacitance sensing cells;
a plurality of scan lines wherein each scan line is coupled with a collection of fingerprint capacitance sensing cells; a plurality of data lines wherein each data line is coupled with a collection of fingerprint capacitance sensing cells; and a plurality of fingerprint capacitance sensing cells wherein each fingerprint capacitance sensing cell further comprises, a fingerprint capacitor comprising a transparent capacitance detecting electrode and a transparent capacitance detecting dielectric layer, a transparent reference capacitor coupled with said fingerprint capacitor with one electrode connecting to the fingerprint capacitor, a transparent TFT (thin-film transistor) wherein said transparent TFT with one terminal connecting to a scan line and another terminal connecting to a column line, and an amplification transparent TFT (thin-film transistor) wherein the gate electrode of the amplification transparent TFT connects to the transparent capacitance detecting electrode, one terminal of said amplification transparent TFT connects to a data line and the other terminal connects to a scan line. |
| 地址 |
|
