Lg Display Co., Ltd.

Hyunsuk Cho

YoungGyu Kim

SangHyuck Bae

CheolSe Kim

BuYeol Lee

Deuksu Lee

SeungRok Shin

Jaeseung Kim

Hyunwoo Jang

SunYeop Kim

Jongsung Kim

HyungUk Jang

DoYoung Jung

NamYong Gong

Hwideuk Lee

Hui Jung Kim

Kiltae Kim

Yangsik Lee

YongChan Park

Sungsu Han

HwiDeuk Lee

Seungrok Shin

Sanghyuck Bae

JuHong Kim

Cheolse Kim

Buyeol Lee

Younggyu Kim

Yongchan Park

Hui Kim

The present disclosure provides a touch sensor embedded light emitting diode display device and a touch display panel. The device includes a substrate, a light emitting diode (LED) disposed over the substrate. The LED includes a first electrode and a second electrode. The device includes a pixel electrode electrically connected to the first electrode and a common electrode electrically connected to the second electrode. The device includes a driving transistor disposed over the substrate. The transistor includes an active layer, a source electrode, a drain electrode, and a gate electrode. The device includes a relay electrode electrically connecting the source electrode or drain electrode to the pixel electrode. The device includes a first touch sensor electrode disposed spaced apart from the light emitting diode and including the same conductive material as the pixel electrode.

Touch display device and touch display panel

Embodiments of the present disclosure are related to a touch display device, as a plurality of first line parts disposed on a first sensor layer and a plurality of second line parts disposed on a second sensor layer are alternated to make a touch line, at least a portion of different touch lines can be disposed to be overlapped each other, thus a plurality of touch lines can be disposed while reducing or minimizing a reduction of an aperture ratio or a transmittance of a subpixel due to an arrangement of the touch line. Accordingly, a touch sensitivity can be enhanced by further disposing touch electrodes, or the touch display device having a large area with many channels can be implemented easily by further disposing touch 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

A touch display device includes a shield electrode disposed between a touch electrode and a display electrode, by not disposing the touch electrode and the shield electrode on a part of an area overlapping with a data line, thus direct and indirect coupling by the data line can be reduced and a crosstalk by a coupling between a touch signal and a display signal can be reduced. Furthermore, in the case that the shield electrode is disposed on a layer where a connecting pattern connecting between the touch electrode and the touch line is disposed, by maintaining an arrangement of the shield electrode on some area where the data line is overlapped and the touch electrode isn't disposed, thus an effect of a coupling reduction can be provided while maintaining a noise blocking performance of the shield electrode stably.

Embodiments of the present disclosure relate to a touch circuit, a touch display device, and a touch driving method, and more specifically, to a touch circuit, a touch display device, and a touch driving method for simply configuring a system for transmitting signals between a touch display device and a stylus by uniformly arranging intervals between touch driving periods in a touch frame.

Touch display device with a uniform interval between touch driving periods and touch driving method thereof

Provided are a touch display device and a touch circuit that can effectively simultaneously sense a plurality of pens in a predetermined touch frame time (a driving time) by simultaneously performing sensing of pen information and sensing of a pen position using pen data.

Touch display device and touch circuit for sensing an active pen touch and finger touch

The present disclosure provides A touch sensing system comprising: a display panel having pixels and touch sensors; a display driving circuit that writes data to the pixels; a touch sensing part that senses touch input; a plurality of multiplexers that connect one of sensor lines connected to the touch sensing part; and a touch sensor controller that performs full sensing to detect a multiplexer with a sensed touch input by supplying a driving signal to the touch sensors within the touch sensing periods, performs pre-sensing to determine whether or not a touch input is sensed in multiplexers adjacent to the multiplexer with a sensed touch input, and performs local sensing to scan the touch sensors connected to the multiplexer with a sensed touch input based on the pre-sensing result and to calculate the coordinates of the touch input.

Touch sensing system and method of controlling the same

A display device includes a display panel including an active area, in which pixels for displaying an input image and touch sensors for sensing a touch input are located, and a bezel area outside the active area and a power integrated circuit (IC) configured to produce DC (direct current) power and AC (alternating current) power and supply the DC power and the AC power to power lines disposed in the bezel area. The power lines include a first power line, to which the DC power is supplied, and a second power line, to which the AC power is supplied. The bezel area includes a first bezel area, in which the first power line is located, and a second bezel area, in which the second power line is located.

Display device with an integrated touch sensor and method of driving the same

A display device and a method for driving the same are disclosed. The display device includes a display panel including pixels and touch sensors, the display panel being time-division driven in a display driving period and a touch sensor driving period, a main power integrated circuit (IC) configured to produce a first gate high voltage and a second gate high voltage less than the first gate high voltage, a touch power IC configured to produce a first AC signal having an amplitude corresponding to the second gate high voltage, and a gate driver configured to produce a gate pulse based on the first gate high voltage to supply the gate pulse to gate lines connected to the pixels during the display driving period and supply the first AC signal to the gate lines during the touch sensor driving period.

Display device and method for driving the same

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Paju-si, South Korea

Hyunsuk Cho