Lg Display Co., Ltd.

Keuksang Kwon

Namkyun Cho

SeungChul Park

KiJeong Lee

Jaehyun Park

SungUk Byun

Sangsoo Han

Nakjin Seong

Kyuman Lee

Seungchul Park

Dongkyoon Heo

A display device having a display panel and a touch screen panel is disclosed. The display device includes a display panel driving unit formed on a portion of the rear of the display panel and including a plurality of display panel driving circuits to drive the display panel; a touch screen panel driving unit formed on other portion of the rear of the display panel to be adjacent to the display panel driving unit and including a plurality of touch screen panel driving circuits to drive the touch screen panel; and a connector formed on the display panel driving unit and including a first connector unit connected to at least one of the display panel driving circuits and a second connector unit connected to at least one of the touch screen panel driving circuits.

Display device having touch screen panel

A touch sensing display device supporting a pixel driving period and a touch driving period in each frame period. The device comprises a display panel having data lines and touch sensing lines, the data lines coupled to pixels of the display panel. A data driving circuit drives data signals onto the data lines during the pixel driving period of the frame period. A touch readout circuit generates touch data of signals of the touch sensing lines during the touch driving period of the frame period, the touch driving period distinct of the pixel driving period. A supply voltage of the data driving circuit can be cut off during the touch driving period, and a supply voltage of the touch readout circuit can be cut off during the pixel driving period.

Time-division driving type touch sensing device and method for driving the same

An in-cell touch display device. A panel has a plurality of data lines, a plurality of gate lines and a plurality of touch electrodes disposed thereon. A touch driving signal is applied to the plurality of touch electrodes when a driving mode is a touch mode. A data driver drives the plurality of data lines. A gate driver drives the plurality of gate lines. The gate driver sequentially outputs a scanning signal for driving the plurality of gate lines to the plurality of gate lines when the driving mode is a display mode, and outputs a load-free driving signal corresponding to the touch driving signal to at least one gate line when the driving mode is the touch mode. A level shifter generates the load-free driving signal. A multiplexer inputs a scanning voltage or the load-free driving signal to the gate driver depending on the driving mode.

In-cell touch display device

A display device comprises a display panel including data lines and gate lines crossing each other, a data driving circuit configured to convert digital video data into data voltages which are supplied to the data lines, a gate driving circuit configured to sequentially supply gate pulses to the gate lines, wherein a voltage of each of the gate pulses increases from a gate low voltage to a precharging voltage during a first rising time and thereafter increases from the precharging voltage to a gate high voltage during a second rising time, and wherein the voltage of each of the gate pulses decreases from the gate high voltage to the precharging voltage during a first falling time and thereafter decreases from the precharging voltage to the gate low voltage during a second falling time.

Display device and method for controlling gate pulse

Growing community of inventors

Gumi-si, South Korea

Keuksang Kwon