Lg Display Co., Ltd.

Gwangju Institute of Science and Technology

Jonghee Hwang

Junseok Oh

BuYeol Lee

EunJung Kim

Sunyoung Kim

Deuksu Lee

KiDuk Kim

JongGu Heo

Kyoseop Choo

Taeyun Kim

Guensik Lee

Seungrok Shin

JuSeong Park

SuWon Lee

SeungHwan Yoon

DongKyun Lim

Sungyong Cho

Je Ha Ryu

JiEun Son

Jeong Goo Kang

Dongkyun Lim

Kiduk Kim

Hee Won Kim

Seunghwan Yoon

Disclosed is a display device including a display panel configured to be situated under a transparent substrate and display an image on a display area toward the transparent substrate, a fingerprint sensor under the display panel to detect a fingerprint contacting the transparent substrate, and a drive integrated circuit (drive IC) configured to drive the display panel.

Display device with a fingerprint sensor

An electronic device can include: a pixel array layer disposed on a substrate and including a plurality of pixels, each of the plurality of pixels including a thin film transistor and an organic light emitting device; an encapsulation layer covering the pixel array layer; a shielding layer disposed on the encapsulation layer; and a touch sensing layer disposed on the shielding layer to sense coordinates of a touch input, in which the touch sensing layer includes a pressure response member for sensing a touch force of the touch input.

Electronic device

A method of driving a display device includes: sensing a touch signal from a plurality of touch electrodes in a touch panel, sensing a force signal from a force sensor, based on the sensed touch signal, determining whether or not the touch panel is in a submerged state, when the touch panel is determined to be in the submerged state, increasing sensing periods of the touch signal and the force signal, detecting a baseline variation of the force sensor, based on the detected baseline variation, changing a sensing reference value of the force sensor, based on the increasing the sensing periods, sensing the force signal equal to or greater to the changed sensing reference value through the force sensor, and when the force signal equal to or greater to the changed sensing reference value is sensed through the force sensor, decreasing the sensing periods.

Display device and method of driving the same

An electronic device is capable of having a minimum sensing pressure with a low value through a resistive type force touch sensing method, wherein the electronic device may include a force sensing panel having a force sensor member whose shape is changed according to a touch pressure applied to a cover window so as to electrically connect first and second electrodes prepared on the same plane and provided in parallel.

Disclosed is an organic light emitting display device including an encapsulation layer covering a pixel array layer provided on a substrate and a cover window coupled to a touch sensing layer. The touch sensing layer includes a first touch electrode layer provided on the encapsulation layer, a second touch electrode layer provided on the first touch electrode layer, and a thickness modification member between the first touch electrode layer and the second touch electrode layer.

Organic light emitting display device

An electronic device has a force touch function which is capable of minimizing a degradation of picture quality, wherein the electronic device may include a housing having a receiving space, an image display module disposed in the receiving space, and a force sensing panel disposed between a bottom surface of the housing and the image display module, which enables a user's force touch to be sensed through the force sensing panel, and to minimize a degradation of picture quality caused by heat.

Electronic device having force touch function comprising a display panel and a force sensing panel disposed entirely below the display panel

Discussed is a touch screen apparatus according to an embodiment having a flat, curved or bending type display device, and an electronic device including the same. The touch screen apparatus includes a touch sensing circuit for outputting three-dimensional (3D) touch information by sensing a touch position through a first touch sensor and sensing a touch force through a second touch sensor.

Apparatus for touch screen and electronic device comprising the same

A haptic driving apparatus provides a user with electrovibration of certain strength regardless of a variance of a surrounding environment, and an electronic device has a haptic function. The haptic driving apparatus comprises a haptic electrode driver generating a haptic driving signal to supply the generated haptic driving signal to a haptic electrode through a current monitor and varying the haptic driving signal in accordance with voltages at both ends of the current monitor.

Haptic driving apparatus and electronic device having haptic function

Disclosed is an organic light emitting display device including an encapsulation layer covering a pixel array layer provided on a substrate and a cover window coupled to a touch sensing layer. The touch sensing layer may include a first touch electrode layer provided on the encapsulation layer, a second touch electrode layer provided on the first touch electrode layer, and a pressure reaction member provided between the first touch electrode layer and the second touch electrode layer. Electrical characteristic of the pressure reaction member may be changed according to force applied to the pressure reaction member.

A touch panel driving device that can easily perform a force sensing drive with a touch drive unit and a force drive unit that can be integrally formed in one-chip, a touch panel device can include the one-chip touch panel drive device, and a driving method thereof are provided. The touch panel device can include a bypass path that supplies a second touch sensing signal to a drive unit without passing through a sensing unit. Accordingly, the touch panel device can perform both touch sensing based on a first touch sensing signal and force sensing based on a second touch sensing signal using a single drive unit and prevent an erroneous second touch sensing signal from being transmitted to the drive unit due via the sensing unit, thereby easily and more accurately performing the force sensing.

One-chip touch panel driving device, touch panel device including the same, and driving method thereof

An electronic device has a force touch function. The electronic device includes an image display module having a touch electrode. A cover window attaches to a front surface of the image display module. A housing receives the image display module therein, and supports the cover window. A panel moving part is between the housing and the image display module. A driving circuit senses a touch force based on a distance between the image display module and the housing which are spaced from each other with the panel moving part interposed in-between.

Electronic device having force touch function

A touch display device can include a touch panel having a plurality of subpixels, arranged between a first substrate and a second substrate, and a plurality of touch sensors arranged in units of a certain number of subpixels; an elastic layer on the second substrate; a display driver for supplying image signals to the plurality of subpixels, respectively; and a touch driver for supplying a touch driving signal to the plurality of touch sensors and sensing a touch position and a touch pressure which is applied when a touch is input to the touch panel, based on a capacitance variation of each of the plurality of touch sensors.

Touch display device and method of driving the same

An apparatus for driving a touch panel can include a touch panel for sensing a force touch of a user input, and a touch driver for sensing the force touch from the touch panel and generating touch force data, in which the touch driver adjusts a sensitivity of the touch force data, based on touch mode information set by the user.

Apparatus for driving of touch panel and electronic device including the same

A display device having touch sensors includes a touch screen forming sensor nodes at crossings of Tx lines and Rx lines, a Tx driving circuit supplying a touch driving pulse to the Tx lines, an Rx driving circuit which receives voltages of the sensor nodes through the Rx lines, samples the sensor node voltages, and converts the sampled sensor node voltages into touch raw data through analog-to-digital conversion, and a touch controller which receives and binarizes the touch raw data, extracts a touch area based on the binarized touch raw data, differently sets a size of a computation block based on a position of the touch area and the number of touch areas, and performs a touch computation only on touch raw data of the computation block.

Display device having touch sensors and touch data processing method thereof

Disclosed is a bendable stereoscopic 3D display device that includes a display panel including a plurality of left-eye pixels and a plurality of right-eye pixels, the display panel being divided into a plurality of blocks; a separator on the display panel to transmit or block images output from the left-eye pixels and the right-eye pixels; a gate driver and a data driver to drive the display panel; a timing controller to receive image data and a timing signal for driving the gate driver and the data driver; and a control unit to receive a bending information on at least one of the plurality of blocks when there is a change in curvature of the display panel, reset a view map of the at least one of the plurality of blocks based on the bending information, and rearrange the image data based on the view map.

Growing community of inventors

Goyang-si, South Korea

Jonghee Hwang