Samsung Display Co., Ltd.

Jina Kang

Byeongkyu Jeon

Jinwoo Kim

Changbum Kim

Soongyu Lee

Kyowon Ku

ChangBum Kim

Dongchun Lee

Miyoung Kim

Sanghyun Lim

Kangwon Lee

Gayoung Kim

Hyunjee Jeon

Young-seok Seo

An electronic device includes a display panel, an input sensor disposed on the display panel and including first sensing electrodes extending in a first direction and second sensing electrodes extending in a second direction crossing the first direction, and a sensor controller connected to the input sensor. First and second areas are defined in the input sensor based on an input position to which an input by an input device is applied. The input position is located in the first area and not in the second area. The sensor controller applies a first signal to at least one first sensing electrode disposed in the first area and at least one second sensing electrode disposed in the first area and applies a second signal having an opposite phase to a phase of the first signal to the other first and second sensing electrodes disposed in the second area.

Electronic device having increased input sensing sensitivity

An electronic device, includes: a display device configured to display an image; and an input device configured to communicate with the display device, wherein the display device includes: a display panel including a plurality of pixels; an input sensor on the display panel; a panel driver configured to control the display panel; a main controller configured to provide a control signal to the panel driver; and a sensor controller configured to control the input sensor, wherein the display device is configured to transmit a sync signal included in the control signal to the input device.

Electronic device with improved sensing performance

An electronic device may include a display layer that displays an image and a sensor layer disposed on the display layer and sensing an external input. The sensor layer includes a plurality of channels equal to M. M is an integer greater than or equal to 5. A sensor driver drives the sensor layer. In an uplink section, the sensor driver provides an uplink signal to X first channels that are continuously arranged and provides an inverse phase signal having an inverse phase of the uplink signal to Y second channels that are continuously arranged. X and Y are integers greater than or equal to 2. Z off channels that are continuously arranged and are positioned between the first channels and the second channels may be turned off. Z is an integer greater than or equal to 1. M is a sum of X, Y and Z.

Electronic device

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 electronic device includes: a display layer; a sensor layer to operate in a first mode for detecting a first input by a touch, and a second mode different from the first mode and including a plurality of frames; and a sensor controller to control the sensor layer. Each of the plurality of frames includes a downlink signal including information used to detect a second input by an input device, and a sensing signal including information used to detect the first input. When the first input is detected in the second mode, the sensor controller is to: output first coordinates of the first input based on the sensing signal of at least one frame in which the first input is detected; and correct second coordinates of the second input based on the first coordinates during a period of at least two frames including the at least one frame.

Electronic device and interface device including the same

An electronic device includes a display panel, an input sensor, a panel driver, and a sensor controller. The panel driver drives the display panel at a first operating frequency in a first driving mode and drives the display panel at a second operating frequency lower than the first operating frequency in a second driving. The display panel displays the image in units of first driving frames in the first driving mode and displays the image in units of second driving frames in the second driving mode. The sensor controller transmits a first mode uplink signal to the input sensor in a first scheme in the first driving mode and transmits a second mode uplink signal to the input sensor in a second scheme different from the first scheme in the second driving 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: an input sensor on a display panel; and a sensor controller configured to operate in a first mode for sensing a first input by an input device or a second mode for sensing a second input through the input sensor, the sensor controller being configured to transmit an uplink signal to the input device through the input sensor and to receive a downlink signal from the input device through the input sensor in the first mode, wherein an input sensing frame comprises an uplink period in which the uplink signal is provided to the input sensor, and an interval between a start time point of the display frame and a start time point of the uplink period is variable in a unit of at least one input sensing frame during k input sensing frames, where k is an integer equal to or greater than 2.

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Hwaseong-si, South Korea

Jina Kang