Samsung Display Co., Ltd.

Kyowon Ku

Youngsik Kim

Junghak Kim

Soongyu Lee

Jinwoo Kim

Jeongheon Lee

Gwang-bum Ko

Hansu Cho

Jaehyung Jo

Miyoung Kim

Sanghyun Lim

Byeongkyu Jeon

Jina Kang

Kangwon Lee

Gwang-Bum Ko

Gayoung Kim

Eunhye Kim

Hyunjee Jeon

Dongchun Lee

Young-seok Seo

Jlna Kang

Chung-Won Choi

An interface device includes an electronic device and an input device. The electronic device includes a display layer that includes a display area that includes a foldable area and non-foldable areas, a sensor layer that includes a plurality of detection electrodes, and a sensor driving unit that drives the sensor layer. The plurality of detection electrodes include a first pen sensing electrode and a second pen sensing electrode, and the sensor driving unit transmits to the first pen sensing electrode one of a first sensing signal that has a first driving frequency or a second sensing signal that has a second driving frequency that differs from the first driving frequency according to a position of the input device with respect to the display area.

Electronic device and interface device including the same

An input sensor including: a sensor including a sensing electrode for sensing a touch input and a pen sensing electrode for sensing a pen input; and a sensor controller configured to acquire a first coordinate based on a touch sensing signal received from the sensing electrode and acquire a second coordinate based on a pen sensing signal received from the pen sensing electrode during a first sensing frame, wherein the first sensing frame includes a first blank period, a touch sensing period for sensing the touch input, and a pen sensing period for sensing the pen input, wherein the first blank period, the touch sensing period, and the pen sensing period are sequentially arranged, and wherein a duration of the first blank period and a duration of the pen sensing period are adjustable.

Input sensor and a display device for sensing a touch input and a pen input

A method of driving a sensor layer of an electronic device includes, at a first time, driving a first connection line with a first signal, the first connection line connected to a first end of each of first electrodes, driving a second connection line with the first signal, the second connection line connected to a second end of each of first group electrodes of the first electrodes, and driving a third connection line with a second signal different from the first signal, the third connection line connected to a second end of each of second group electrodes of the first electrodes, and generating a magnetic field with the first connection line, the first group electrodes, and the second group electrodes to charge a RLC resonance circuit of a pen at a first time.

Electronic device

According to one aspect of the invention, a detection module for a display device, the detection module includes: a substrate; a detector disposed on the substrate to detect an external signal; a sensor driving circuit disposed on the substrate to drive the detector; and a light shielding layer to block an external light from entering the sensor driving circuit and to receive a light blocking voltage.

Detection module and display device having the same

A display device includes a display panel that includes a display region on which a pixel is disposed and a non-display region around the display region. An input sensor is disposed on the display panel and is configured to detect an electromagnetically induced current. A conductive layer is disposed below the display panel and overlaps the display region. The conductive layer includes a first unit pattern. The first unit pattern includes a first extension part, and a plurality of second extension parts that extend from the first extension part in a direction intersecting a direction of the first extension part and are disposed on one side of the first extension part.

Display device including an input sensor and electronic apparatus including the same

An input sensing device includes: an input sensor including a transmission electrode, a first reception electrode, and a second reception electrode; and a readout circuit configured to provide a transmit signal to the transmission electrode, to receive a first receive signal from the first reception electrode, and to receive a second receive signal from the second reception electrode, wherein the readout circuit includes: a switching circuit configured to transfer the first receive signal and the second receive signal to a first node and a second node, respectively, during a touch sensing period and to transfer one of the first receive signal and the second receive signal to the first node and the second node during a compensation period; a first output circuit configured to convert a signal of the first node into a first sensing signal; and a second output circuit configured to convert a signal of the second node into a second sensing signal.

Input sensing device and display device including the same

An electronic device includes: a display layer configured to display an image; a display driver configured to drive the display layer; a sensor layer on the display layer; and a sensor driver configured to drive the sensor layer, and wherein the sensor layer is configured to output a first uplink signal generated with a first reference voltage in a first mode, and to output a second uplink signal generated with a second reference voltage greater than the first reference voltage in a second mode different from the first mode.

Electronic device having sensor layer generating uplink signals

Disclosed are an input sensing unit and a display device including the input sensing unit. The input sensing unit includes a first sensing electrode extending in a first direction, a second sensing electrode extending in a second direction and insulated from the first sensing electrode, a first pen sensing electrode extending in the first direction and including a 1-1pen sensing electrodes and a 1-2pen sensing electrode disposed on different layers and overlapping each other, and a second pen sensing electrode extending in the second direction and including a 2-1pen sensing electrodes and a 2-2pen sensing electrode disposed on different layers and overlapping each other. The 1-1pen sensing electrode is disposed adjacent to the first sensing electrode on the same layer, and the 2-1pen sensing electrode is disposed adjacent to the second sensing electrode on the same layer.

Input sensing unit and display device including the same

An input device includes: a housing; a tip electrode protruding outside of the housing and configured to transmit a downlink signal to the outside; a reception electrode inside the housing and configured to receive an uplink signal from the outside; and a communication circuit electrically connected to the tip electrode and the reception electrode and configured to receive the uplink signal from the reception electrode or to transmit the downlink signal to the tip electrode, wherein a surface of the reception electrode has a concave-convex structure.

Input device and electronic device comprising the same

An electronic device includes: a display layer to display an image; a sensor layer on the display layer; and a sensor driver electrically connected with the sensor layer, and to be selectively driven in a first mode for detecting a passive input, or a second mode for detecting an active input. In the second mode, the sensor driver is to: receive a plurality of sensing signals from the sensor layer; divide the plurality of sensing signals into a valid signal and a noise signal; calculate intermediate coordinates based on the valid signal; and correct the intermediate coordinates based on the noise signal to calculate input coordinates.

Electronic device and driving method of electronic device

A detection module for a display device includes: a substrate; a detector disposed on the substrate to detect an external signal; a sensor driving circuit disposed on the substrate to drive the detector; and a light shielding layer to block an external light from entering the sensor driving circuit and to receive a light blocking voltage.

An electronic device includes: a display layer; a sensor layer on the display layer and having an active area and a peripheral area adjacent to the active area, wherein the sensor layer is configured to operate in a first mode, in which a first input by an input device is sensed, and a second mode, in which a second input by touch is sensed; and a controller configured to control the sensor layer, wherein, in the first mode, the controller is configured to define the active area into a first area and a second area different from the first area, which are defined based on a coordinate at which the first input is sensed, and in the first mode, the controller is configured to provide an uplink signal to the first area and provide a reverse-phase signal having a reverse phase of the uplink signal to the second area.

Electronic device with uplink signal to first area in a first mode

An interface device includes an electronic device and an input device for communicating with the electronic device. The electronic device includes a display layer, a sensor layer, and a controller for outputting a first uplink signal and a second uplink signal to the sensor layer. The input device includes a communication unit for receiving an uplink signal from the sensor layer, a memory for storing first information and second information, a signal determination unit for determining whether the uplink signal is the first uplink signal or the second uplink signal, based on the first information and the second information, and a signal conversion unit for outputting conversion data in response to the uplink signal being the second uplink signal.

Input device driving method and interface device using the same

An electronic device, includes: a display panel; and an input sensor on the display panel, wherein the input sensor includes a plurality of sensing electrodes, each having a first region and a second region that surrounds the first region, each of the plurality of sensing electrodes including a pen electrode configured to detect an input tool and a touch electrode configured to detect a touch input, wherein the pen electrode is at the first region, and wherein the touch electrode is at the second region.

Electronic device having input sensor

A display device includes: a display unit configured to display an image; a fingerprint sensing unit on one surface of the display unit and comprising fingerprint sensing pixels configured to sense a fingerprint; and a readout circuit configured to receive a fingerprint sensing signal from the fingerprint sensing pixels, wherein the readout circuit is configured to generate and output a normal fingerprint image and a dry fingerprint image, which correspond to the fingerprint sensing signal, during a fingerprint registration mode.

Growing community of inventors

Seoul, South Korea

Kyowon Ku