Samsung Display Co., Ltd.

Wankee Jun

Il Ho Lee

Jinwoo Park

Taejoon Kim

Seungrok Lee

Yerin Oh

Jungmok Park

Hyun-wook Cho

Hyeonseo Cho

An inspection system includes a display device product comprising a display panel and an input sensor; and an inspection device comprising an inspection signal generator configured to provide to the display panel an inspection signal indicative of a first image pattern, a memory configured to store a reference signal responsive to a second image pattern, and a noise detector configured to receive from the input sensor a sensing signal responsive to the first image pattern, detect a first noise based on the sensing signal, and detect a second noise based on the reference signal.

System and method for inspecting display device having input sensor

A driving method of a touch sensing part includes sensing a touch of a user by comparing a capacitance formed by a first sensing electrode and a second sensing electrode crossing the first sensing electrode with a reference value in a reference touch mode, varying the reference value such that the reference value decreases along a decrease in the capacitance, during a first period, when an ambient temperature is lower than a reference temperature, sensing the user's touch by comparing the reference value and the capacitance, with the reference value maintained uniformly, during a second period following the first period, when the touch of the user is made, and varying the reference value such that the reference value decreases, during a third period following the second period.

Touch sensing part and driving method thereof

An electronic device including: a display layer; a sensor layer disposed on the display layer; a memory configured to store first sensitivity values and first differential sensitivity values; and a sensor driver configured to calculate second sensitivity values from a plurality of nodes and to calculate second differential sensitivity values, wherein the sensor driver is configured to: calculate difference values between the first differential sensitivity values and the second differential sensitivity values; calculate a first average value of a first row or column of values among the difference values; and calculate a second average value of remaining values among the difference values, wherein the remaining values were not used in the first average value calculation, and wherein the sensor driver determines whether to update a baseline, based on the first average value and the second average value.

Electronic device, a sensor driving unit, and an electronic device driving method

A display device including: a display panel configured to display an image in units of a frame; an input sensor disposed on the display panel, and configured to sense an external input; a panel driver configured to control driving of the display panel in response to a synchronization signal; and a sensor controller configured to control driving of the input sensor, wherein the sensor controller receives the synchronization signal from the panel driver and outputs a plurality of transmission signals to the input sensor, and the plurality of transmission signals are varyingly generated based on the synchronization signal.

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YONGIN-SI, South Korea

Wankee Jun