Lg Display Co., Ltd.

SeungRok Shin

Deuksu Lee

Sangkyu Kim

Jeonghoon Lee

Taeyun Kim

Jaeseung Kim

CheolSe Kim

DeukSu Lee

BuYeol Lee

SangHyuck Bae

YoungGyu Kim

Hyunsuk Cho

Hyunwoo Jang

Jaegyun Lee

JiHyun Jung

JaeGyun Lee

Yoonnara Jang

Hyangmyoung Gwon

SuChang An

Jihyun Jung

YongMin Ha

JongHee Hwang

HyunJun Min

Sungho Hong

Leeyoung Kim

A method for sensing contactless touch using a touch sensor structure that senses contacting touch by operating some of touch electrode lines operating as touch driving electrodes and some of touch electrode lines operating as touch sensing electrodes upon contacting touch driving, as touch driving electrodes for sensing contactless touch, in a contactless touch driving period distinct from a contacting touch driving period.

Touch driving circuit and touch display device

The present disclosure is directed to a touch display device that is capable of reducing a load of a touch sensor structure disposed in a display panel and improving the accuracy of touch sensing capabilities of the touch display device. In one aspect, touch electrode lines disposed on an active area are disposed to be separated into a plurality of sub-areas. A number of touch routing lines connected to the touch electrode lines are disposed on the active area, thus a touch sensor structure with a reduced load can be provided while minimizing an increase of a non-active area due to an arrangement of the touch routing lines.

Touch display device

Embodiments described herein is able to provide a touch display device, an active pen, a touch system, a touch circuit, and a pen recognition method capable of efficiently providing a display function, a touch-sensing function, and a pen-touch-sensing function.

Touch display device, active pen, touch system, touch circuit, and pen recognition method

Discussed is a display device including a first substrate; a display panel including first and second electrodes disposed on the first substrate, and a light-emitting layer located between the first electrode and the second electrode; an encapsulation layer disposed on the second electrode of the display panel; a first touch electrode unit disposed on the encapsulation layer and extending in one of a first direction and a second direction intersecting with the first direction; and a first passivation layer disposed on the first touch electrode unit.

Touch display device and method for manufacturing touch display device

A display device can include an organic light emitting layer positioned between an anode electrode and a cathode electrode; an encapsulation layer disposed on the organic emission layer to protect the organic emission layer; a touch layer disposed on the sealing layer, the touch layer having a plurality of touch sensors configured to be driven according to a touch driving signal; a ground modulation signal generator configured to generate a ground modulation signal having a same amplitude as an amplitude of the touch driving signal; and a driving voltage supply configured to generate a modulated driving voltage based on the ground modulation signal, and apply the modulated driving voltage to a driving voltage supply line in synchronization with the touch driving signal within a same display frame.

Display device having touch sensors and driving method thereof

A display device can include a display panel touch block groups, each including touch sensors, each touch sensor corresponds to one or more pixels defined by data lines and gate lines; a data driver that generates and supplies a modulated source signal for display data to a data line; a gate driver that generates a modulated scan-on signal for writing the modulated source signal to a pixel and supplies the modulated scan-on signal to the gate lines; and a touch sensor driver that supplies a touch driving signal to touch wires connected to corresponding touch sensors in each of the touch block groups, and selectively senses for touch on a touch block group, except for a restricted touch block group overlapping a gate line that is supplied with the modulated scan-on signal, in which the modulated source signal or the modulated scan-on signal is synchronized with the touch driving signal.

A touch sensor integrated type display device includes gate lines and data lines disposed to cross over each other, pixel electrodes respectively disposed in areas defined by the crossing of the gate lines and the data lines in an active area, 1-1 electrodes arranged in at least two rows and at least two columns in the active area, 1-2 electrodes positioned outside the 1-1 electrodes and extending from the active area to a bezel area, and first routing wires respectively connected to the 1-1 and 1-2 electrodes and arranged in parallel. Each gate line extends from the active area to the bezel area on opposite sides of the active area, and each data line extends from the active area to the bezel area on opposite sides of the active area crossing the gate line.

Touch sensor integrated type display device having dummy pixel eletrodes in a bezel region

A disclosed touchscreen display device includes a display panel with data lines, gate lines, and N&#xd7;M subpixels arranged in a matrix of N subpixel rows and M subpixel columns, and respectively connected to the corresponding data lines and the corresponding gate lines, where N and M are each a natural number greater than or equal to 2. The display device also includes touch electrodes. The display device is configured to provide a scanning signal to the gate lines connected to the N subpixel rows in a first sequence during an iframe and in a second sequence different from the first sequence during an (i+1)frame, where i is a positive integer. Each of the iframe and the (i+1)frame is configured to include at least one display driving mode section and at least one touch driving mode section.

Touchscreen display device and method of driving the same

A display device comprising a display panel having touch sensors and gate lines, a touch sensor driver configured to supply a touch driving signal to the touch sensors of the display panel during a touch sensor driving period, a gate driver configured to supply a gate pulse synchronized with a data voltage of an input image to the gate lines of the display panel during a display driving period and supply an alternating current (AC) signal having a same phase as the touch driving signal to the gate lines during the touch sensor driving period, and a modulator configured to supply the AC signal having the same phase as the touch driving signal to the gate driver during the touch sensor driving period.

Display device

Touch sensor integrated type display device

A display driver circuit comprises first circuitry to generate a touch drive signal, and second circuitry to provide the touch drive signal to touch sense electrodes of the display device and a touch data signal to data lines of the display device during a touch period and to provide display data signals to data lines of the display device during a display period. A touch gate signal is provided to gate lines of the display device during the touch period. The touch drive signal, the touch data signal, and the touch gate signal mimic a reference waveform, but amplitudes of one or more of the touch drive signal, the touch data signal, and the touch gate signal are overdriven by their respective overdrive amplitude with respect to the reference waveform during their respective overdrive duration.

Display device having in-cell touch structure and method of driving the same

A display device integrated with a touch screen panel, and a method of driving the same, can prevent parasitic capacitance that would otherwise increase the load during a touch operation, lower the accuracy of touch sensing, or make touch sensing impossible. The display device includes data lines, gate lines, and a plurality of electrodes spaced apart from each other. A common voltage is applied to the electrodes in a display driving mode and a touch drive signal is applied to one or more of the electrodes in a touch driving mode. A data voltage is applied to the data lines in the display driving mode. A scan signal is supplied sequentially to the gate lines in the display driving mode and the touch drive signal or a signal corresponding to the touch drive signal is applied to one or more of the gate lines in the touch driving mode.

Display device integrated with touch screen panel and method of driving the same

A touch sensor integrated type display device includes gate and data lines, pixel electrodes, and touch electrodes arranged in a matrix with a row direction and a column direction. The touch electrodes include---, and-touch electrodes respectively connected to---, and-touch routing wires. The-touch routing wire connect-touch electrodes and is arranged in the row direction. The-touch routing wires are respectively connected to-touch electrodes and arranged in the column direction. The-touch routing wire connects-touch electrodes and is arranged parallel to the-touch routing wire. The-touch routing wire connects-touch electrodes and is arranged parallel to the-touch routing wire.

Growing community of inventors

Goyang-si, South Korea

SeungRok Shin