Samsung Display Co., Ltd.

Eungkwan Lee

Taejoon Kim

Hyun-Wook Cho

Jaewoo Choi

Min-Hong Kim

Hyun-wook Cho

Sangkook Kim

Bogeun Yuk

Junseong Lee

Jeongheon Lee

Eunsol Seo

An electronic device according to an embodiment of the inventive concept includes a display panel divided into a display area on which the pixels are disposed and a non-display area disposed adjacent to the display area on a plane, and an input sensing unit including a first pattern and a second pattern, which are disposed on the display panel, overlap the display area, and disposed on the same layer while being spaced apart from each other, an insulation layer disposed on the encapsulation layer, and a first line and a second line, which overlap the non-display area and are disposed on different layers from each other with the insulation layer therebetween, wherein the first line is connected to the first pattern and the second line is connected to the second pattern. The first line overlaps at least a portion of the second line on the plane.

Input sensing unit with partially overlapping lines in a peripheral area and electronic device including the same

In a method for testing an electronic device, the method includes: providing an electronic device including a display layer and a sensor layer on the display layer and configured to operate at a touch drive frequency, the sensor layer including a plurality of first electrodes and a plurality of second electrodes insulatively intersecting the plurality of first electrodes; providing a test signal having a test frequency higher than the touch drive frequency to the plurality of first electrodes; measuring mutual capacitance with the plurality of first electrodes through the plurality of second electrodes; and determining whether or not the sensor layer is defective, based on the mutual capacitance.

Electronic device having a testing method for determining defects in a sensor layer

A display device includes a display panel including pixels, a touch panel including electrodes, a proximity sensor which is adjacent to the touch panel and detects proximity with respect to an object based on a capacitance variation, a display driver which drives the display panel and a touch controller which drives the touch panel and the proximity sensor. Here, the touch controller provides a negative voltage to the proximity sensor when the proximity sensor detects that the object approaches the proximity sensor such that a shortest distance from the object to the proximity sensor is equal to or less than a first reference distance.

Display device including touch panel and method of driving display device including touch panel

An electronic device includes a display layer, a sensor layer, and a sensor driver that receives a sensitivity value from a node defined in an area where one electrode intersects one cross electrode, and calculates an input coordinate based on the sensitivity value. When the sensitivity value received from the node is equal to or greater than a first threshold value, the sensor driver calculates the input coordinate based on the sensitivity value. When each of a plurality of sensitivity values received from the node and a plurality of peripheral nodes adjacent to the node is less than the first threshold value and greater than or equal to a second threshold value, the sensor driver calculates the input coordinate based on the plurality of sensitivity values.

Electronic device and driving method of the same for impproving sensitivity values using adjacent nodes

Growing community of inventors

Hwaseong-si, South Korea

Eungkwan Lee