Samsung Electronics Co., Ltd.

Samsung Display Co., Ltd.

Gil Cho Ahn

Seung Hoon Lee

Yong Kim

Jun Yong Song

Kyung Youl Min

Jun Sang Park

Tai Ji An

Je Min Jeon

Kee Ho Ryu

An analog-to-digital conversion device and analog-to-digital conversion method thereof are provided. The analog-to-digital conversion device includes an analog circuit configured to output an analog input signal, and an analog-to-digital converter configured to receive the analog input signal and configured to outputting a digital output signal corresponding to the analog input signal with the use of first and second capacitor arrays, each of the first and second capacitor arrays including a first capacitor having a calibration capacitor connected thereto and a second capacitor having no calibration capacitor connected thereto, wherein the analog-to-digital converter is configured to calibrate the capacitance of the first capacitor by providing a first calibration voltage to the calibration capacitor and is configured to output the digital output signal corresponding to the analog input signal with the use of the calibrated capacitance of the first capacitor.

Analog-to-digital converter and analog-to-digital conversion method thereof

Disclosed is a device for sensing touch. The device for sensing touch includes: a plurality of electrodes; and a sensing circuit connected with the plurality of electrodes by a plurality of output channels, which is provided so as to correspond to the plurality of electrodes, respectively, and configured to sense a variation of capacitance of the plurality of electrodes from the plurality of output channels, in which the sensing circuit simultaneously senses output data output from a first output channel, a second output channel, a third output channel, and a fourth output channel among the plurality of output channels, the second output channel is adjacent to the first output channel, and the fourth output channel is adjacent to the third output channel, and the first to fourth output channels are connected to an input terminal of a comparing unit including a first input node and a second input node.

Device for sensing touch

Growing community of inventors

Seoul, South Korea

Gil Cho Ahn