Lg Display Co., Ltd.

Yongkyun Choi

Junghoon Lee

ManHyeop Han

KiDuk Kim

SeungHwan Yoon

JiHo Cho

Ji-Ho Cho

JiEun Son

Seunghwan Yoon

Jieun Son

According to an aspect of the present disclosure, a display device includes a display panel in which a plurality of sub-pixels is disposed. Also, the display device includes a data driver configured to supply a plurality of data voltages to the plurality of sub-pixels through a plurality of data lines. Further, the display device includes a gate driver configured to supply a plurality of gate signals to the plurality of sub-pixels through a plurality of gate lines. Each of the plurality of sub-pixels includes a light emitting diode, a driving transistor, and a variable resistance circuit disposed in series between a low-potential voltage terminal and a high-potential voltage terminal. When each of the plurality of sub-pixels implements a low grayscale, the variable resistance circuit increases a resistance between the high-potential voltage terminal and the driving transistor. Thus, a low grayscale can be normally implemented.

Display device

A display apparatus including a large-area fingerprint sensor includes a display panel displaying an image; a touch panel sensing a touch of a finger; a fingerprint sensor including a plurality of fingerprint pixels and recognizing a fingerprint of the finger; a fingerprint sensor driver driving the fingerprint sensor and including a driver driving the fingerprint sensor and a fingerprint recognizer recognizing a fingerprint by using sensing signals received from the fingerprint sensor; and a touch driver driving the touch panel, wherein the driver of the fingerprint sensor driver provides a sensing gate signal to sensing gate lines included in a first touch block determined being touched by touch position information received from the touch driver, among m (where m being an integer of 2 or greater) number of sensing gate lines included in the fingerprint sensor.

Display apparatus including large-area fingerprint sensor

An ultrasonic sensor and a display device and may drive a plurality of sensing pixels disposed in the ultrasonic sensor simultaneously to transmit an ultrasonic wave, may make a first electrode disposed in a sensing pixel to be floated at a timing receiving a reflected signal to store the signal, and then may perform a sensing sequentially. Therefore, as an accurate sensing may be possible while reducing a duration and a number of an ultrasonic wave transmitting, a sensitivity and an accuracy of a sensing may be maintained while improving a driving efficiency of the ultrasonic sensor.

Ultrasonic sensor and display device

Embodiments of the present disclosure may provide: a display device including a touch sensor including a first sensor including at least three first sensing signal lines, each of which is configured to output a first sensing signal according to a first driving signal, and a second sensor which includes a driving signal line and a second sensing signal line and is configured to output a second sensing signal through the second sensing signal line, a second driving signal being applied to the driving signal line, wherein the first driving signal is a signal applied through the driving signal line of the second sensor; and a method for driving a touch sensor.

Display device including touch sensor and method for driving touch sensor

Disclosed are a method of modeling a haptic signal from a haptic object, a display apparatus, and a driving method thereof, which realize a tactile sense having a shape and texture of a haptic object. The method includes obtaining measurement data corresponding to a shape of a texture object while moving a sensor unit with respect to a haptic object including the texture object, obtaining force measurement data corresponding to a level of pressure applied to the haptic object, calculating shape modeling data and impulse modeling data corresponding to the texture object, based on the measurement data, calculating friction force modeling data corresponding to the texture object, based on the force measurement data, generating setting information of a haptic signal corresponding to the haptic object, based on the shape modeling data, the impulse modeling data, and the friction force modeling data, and storing the setting information of the haptic signal.

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Paju-si, South Korea

Yongkyun Choi