Samsung Display Co., Ltd.

Soongyu Lee

Jinwoo Kim

Kyowon Ku

Hyojin Lee

Youngsik Kim

Byeongkyu Jeon

Woomi Bae

Junghak Kim

Jeongheon Lee

So-young Park

Jina Kang

Dongchun Lee

Hansu Cho

Yongjin Jee

Hoeung Lee

Jlna Kang

Chung-Won Choi

A display apparatus includes a touch panel including a plurality of electrodes and a touch driver. The touch panel includes first electrodes extending in a first direction and second electrodes extending in a second direction and overlapping the first electrodes. The touch driver is configured to drive the touch panel in a normal mode and a biometric information measurement mode. The touch driver is configured to sequentially apply a transmission signal to the first electrodes by shifting the transmission signal at each group of N electrodes (where N is a positive integer) in the normal mode, and to sequentially apply the transmission signal to the first electrodes by shifting the transmission signal at each group of Q electrodes (where Q is a positive integer greater than N) in the biometric information measurement mode.

Display apparatus with different frame frequency for biometric mode and for normal mode

A method of driving an input sensor to detect a proximity of a user includes driving the input sensor in a direct sensing mode, the input sensor including first sensing electrodes and second sensing electrodes insulated from the first sensing electrodes, and upon determining the user is engaged in a call, driving the input sensor in in a first proximity sensing mode by applying a driving signal to each of the first sensing electrodes. when the user has not performed the direct touch, and driving the input sensor in a second proximity sensing mode by applying no driving signal to a first subset of the first sensing electrodes and applying the driving signal to a second other subset of the first sensing electrodes, when the user has performed the direct touch.

Input sensing part and driving method thereof

A display device includes a display panel, an input sensor operating in an input sensing mode or a proximity sensing mode, a sensor controller driving the input sensor in the input sensing mode or the proximity sensing mode, and a main controller controlling driving of the sensor controller. The input sensor includes a sensing area and a non-sensing area. The sensing area is divided into a proximity sensing area and a plurality of reference areas in the proximity sensing mode. The main controller generates a noise control signal based on a plurality of reference sensing signals sensed in the reference areas, and determines whether an object is in proximity based on the noise control signal and a proximity sensing signal sensed in the proximity sensing area.

Display device

An electronic device includes a display layer including a pixel within an active region and a sensor, a sensor layer, a display driving circuit, a sensor driving circuit, and a main driving circuit to operate in a first mode. In the first mode, the display driving circuit emits a first light through a light emitting element of the pixel disposed in a first region of the active region, the display driving circuit receives a second light reflected based on the first light, through a sensing element of the sensor disposed in the first region and a second region surrounding the first region, and the main driving circuit determines whether the display layer and the sensor layer are placed in a pocket of a user, based on an amount of the second light.

Electronic device capable of determining placement into a pocket and method of driving electronic device

An electronic device includes a display layer configured to display an image, a sensor layer disposed on the display layer and including a plurality of first electrodes and a plurality of second electrodes, and a sensor driver configured to drive the sensor layer and selectively operate in a first mode or a second mode different from the first mode. When operating in the second mode, the sensor driver is configured to selectively operate in a first driving mode to simultaneously output a plurality of first transmission signals to the plurality of first electrodes or in a second driving mode to simultaneously output a plurality of second transmission signals different from the plurality of first transmission signals to the plurality of first electrodes.

Electronic device

An electronic device includes a display layer that displays an image during a plurality of frame periods, a sensor layer, a sensor driving unit, and a main driving unit. When a user makes a call, the sensor driving unit switches from a first mode to a second mode and drives the sensor layer. When the sensor layer senses a large-area conductor in the second mode, the sensor driving unit switches from the second mode to a third mode and drives the sensor layer. When the main driving unit determines a proximity state in the third mode, the sensor driving unit switches from the third mode to the second mode and drives the sensor layer. When the sensor layer senses a touch in the second mode, the sensor driving unit switches from the second mode to a fourth mode and drives the sensor layer.

An electronic device includes a display panel including a base layer, and an element layer disposed on the base layer, the element layer including pixels outputting a first light, and light receiving sensors, an input device providing a second light to the display panel, and a control module controlling operations of the display panel and the input device. The light receiving sensors detect the second light provided from the input device and generate a detection signal. The control module calculates biometric information of a user based on the detection signal.

Electronic device and method of driving electronic device

A display device includes: a display panel comprising a display area at which an image is displayed; an input sensor on the display panel and configured to operate in a first mode to sense a first input or in a second mode to sense a second input provided by an input device; a sensor controller configured to control an operation of the input sensor; and a wireless power supply configured to transmit a wireless power signal to the input device at a transmission frequency in response to the input sensor operating in the second mode, wherein the sensor controller is configured to transmit an uplink signal to the input device through the input sensor in the second mode, and the uplink signal comprises a set signal corresponding to the transmission frequency of the wireless power signal.

Display device and electronic device including the same

An electronic device including a display layer, a sensor layer that senses a first input by proximity sensing and a second input by a touch, wherein the sensor layer is disposed on the display layer and includes a plurality of first electrodes extending in a first direction and a plurality of second electrodes extending in a second direction intersecting the first direction, and a control unit that controls the sensor layer. When the first input is sensed, the control unit obtains a measurement signal from one of the plurality of first electrodes, obtains a noise signal from another of the plurality of first electrodes, and determines whether the first input is sensed, based on the measurement signal and the noise signal.

Provided is an electronic device including a display panel configured to display an image, an input sensing layer on the display panel, and configured to operate in a first sensing mode in which a first input is sensed, or a second sensing mode in which a second input provided by an input device is sensed, and a sensing controller configured to control an operation of the input sensing layer, wherein, in the first sensing mode, the sensing controller operates in a first mode in which an uplink signal for searching the input device is transmitted at a first frequency to the input sensing layer, or a second mode in which the uplink signal is transmitted at a second frequency, which is less than the first frequency, to the input sensing layer, and wherein, in the second sensing mode, the sensing controller transmits the uplink signal at the first frequency to the input sensing layer.

An electronic device includes a sensor layer including a plurality of first electrodes and a plurality of second electrodes, a sensor driving circuit driving the sensor layer and operating in a first or second mode, and a main driving circuit controlling an operation of the sensor driving circuit. In the first mode, the sensor driving circuit outputs a plurality of first transmit signals to the plurality of first electrodes respectively, receives a plurality of first sensing signals from the plurality of second electrodes respectively, and outputs the plurality of first sensing signals to the main driving circuit. In the second mode, the sensor driving circuit outputs a plurality of second transmit signals to the plurality of first electrodes respectively, receives a plurality of second sensing signals from the plurality of second electrodes respectively, and provides the main driving circuit with a coordinate based on the plurality of second sensing signals.

Display apparatus having normal mode and biometric information measurement mode

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 display device includes a display panel, a touch panel on the display panel, a host processor, and a display panel driver. The host processor receives proximity data of the touch panel. The display panel driver receives an input control signal from the host processor and drives the display panel based on the input control signal. The touch panel includes a proximity area and a non-proximity area. The host processor counts a rise of the proximity data in the proximity area to generate a first count value. The host processor resets the first count value when the proximity data in the non-proximity area increase.

Display device including touch panel and method of driving the same

Disclosed is a driving method of a display device which includes driving a display panel, which includes a pixel and a fingerprint sensor and displays a static image and a dynamic Image, at a first frequency, and driving the display panel at a second frequency lower than the first frequency for the purpose of sensing a finger and reading a fingerprint through the fingerprint sensor. The driving of the display panel at the second frequency includes driving the display panel at a (2-1)-th frequency when the display panel senses the fingerprint and displays the dynamic image, and driving the display panel at a (2-2)-th frequency different in value from the (2-1)-th frequency when the display panel senses the fingerprint and displays the static image.

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Daegu, South Korea

Soongyu Lee