Samsung Electronics Co., Ltd.

Jonghee Na

Hyunwook Lim

Bumsoo Kim

Woohyuk Jang

Yoon-Kyung Choi

Junchul Park

Taekon Yu

Wongab Jung

Byunghwee Park

Gwangho Nam

Yonghoon Yu

Byoungyoon Jang

Sewhan Na

A touch sensor controller for driving a touch sensor that is stacked on a display panel and includes driving electrodes and receiving electrodes crossing the driving electrodes, the touch sensor controller including: a driving circuit configured to sequentially provide driving signals to the driving electrodes; a read-out circuit configured to, in response to the driving signals, generate touch data based on first sensing signals received from the receiving electrodes and generate display noise data based on a second sensing signal received from a first driving electrode to which a driving signal of the driving signals is not applied from among the driving electrodes; and a touch processor configured to determine whether a touch input has occurred on the touch sensor based on the touch data and the display noise data.

Touch sensor controller, operating method of touch sensor controller, and touch screen driving circuit

An electroluminescent display device includes a display panel including pixels, a storage circuit, a luminance compensation circuit and a data driver. The storage circuit stores information on a leakage curve indicating a luminance change value of a target pixel according to a change of an input pixel value of a neighboring pixel, the plurality of pixels including the target pixel and the neighboring pixel. The luminance compensation circuit receives input pixel values corresponding to the pixels and generates compensated pixel values respectively corresponding to the pixels by compensating for lateral leakage based on the leakage curve, where the lateral leakage is caused by leakage currents through a common conduction layer of the pixels. The data driver drives the pixels based on the compensated pixel values. The exact (or close) luminance of the input image is realized by compensating for the luminance distortion.

Electroluminescent display device and method of compensating for luminance in the same

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Hwaseong-si, South Korea

Jonghee Na