Samsung Electronics Co., Ltd.

Hae-yong Ahn

Yoon-kyung Choi

Jong-kang Park

Sang-Woo Kim

Hyoung-rae Kim

Jae-Suk Yu

San-ho Byun

Hwa-hyun Cho

Hyung-dal Kwon

Sang-woo Kim

Jong-seon Kim

Yong-Yun Park

Gyoo-cheol Hwang

Jong-hak Baek

Won-Gab Jung

Young-tae Son

Mi-hye Jung

A touch controller includes a touch data generator that is connected to a plurality of sensing lines, the touch data generator sensing a change in capacitance of a sensing unit connected to each of the sensing lines and generating touch data by processing the sensing signal corresponding to the result of sensing; and a signal processor that controls a timing of generating the touch data by receiving at least one piece of timing information for driving a display panel from a timing controller, and then providing either the timing information or a signal generated from the timing information as a control signal to the touch data generator.

Touch controller having increased sensing sensitivity, and display driving circuit and display device and system having the touch controller

A method of segmenting multiple touches in a touch sensor system is disclosed. The method includes setting a point node by selecting a valid node of a touch sensor panel from among valid nodes having touch data equal to or greater than a threshold value of a touch sensor panel; determining one or more candidate labels for the point node by searching for adjacent nodes around the point node; and when there are two or more candidate labels for the point node, labeling the point node by selecting a label of a label group that has the highest group similarity with the point node and that is from among label groups of the two or more candidate labels, and by assigning the selected label to the point node.

Method of segmenting multiple touches in touch sensing system

An adaptive digital filtering method and apparatus for touch data in a touch system is described. Adaptive digital filtering involves estimating a signal-to-noise ratio (SNR) for stored touch data, and reducing a digital filter order if the SNR is high and increasing the digital filter order if the SNR is small.

Adaptive digital filtering method and apparatus in touch sensing system

A display controller is provided. The display controller includes an external memory and a timing controller which compresses current frame data to generate front first in-first out (FIFO) input data, temporarily stores the front FIFO input data and writes the front FIFO input data to the external memory in a burst mode, and reads data from the external memory in the burst mode, temporarily stores the read data as back FIFO output data, and decodes the back FIFO output data to output previous frame data.

Display controllers including memory controllers

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Seoul, South Korea

Hae-yong Ahn