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US 2010/0164929 A1Published application
Source driver
AssigneeRaydium Semiconductor Corporation
InventorsYi Cheng Chen, Yann Hsiung Liang, Chin Chieh Chao, Hui Wen Miao, Ko Yang Tso
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Abstract
The invention discloses a source driver. The source driver comprises a plurality of channels and a control module. Each of the plurality of channels comprises an output buffer, an output pad, a driving switch, and a charge sharing switch. The control module is used to control a gate signal of the driving switch or the charge sharing switch in each channel to be changed linearly. By doing so, a peak current generated by the source driver can be lowered to reduce the electromagnetic interference (EMI).
Claims9
A source driver, comprising:
- plurality of channels, one of the plurality of channels comprises:
- output pad;
- output butter for driving a voltage signal;
- and
- first switch coupled between the output puffer and output pad, when the first switch is turned on, the voltage signal being transmitted to the output pad through the first switch;
- and
- control module, coupled to the first switch, for controlling a first gate signal of the first switch to be changed linearly.
4 more elements
Dependencies are inferred from the claim text.