公开(公告)号：EP3617853A1

公开(公告)日：2020-03-04

申请号：EP19184669.0

申请日：2019-07-05

Applicant: LG Display Co., Ltd.

Inventor： KIM, HoonBae ,  KIM, SunYeop ,  LEE, SungHoon ,  SHIN, SeungMok ,  KIM, SungChul ,  JO, Youngwoo ,  KANG, Seongkyu ,  LEE, HongJu

IPC: G06F3/0354 ,  G06F3/041 ,  G06F3/044

Abstract: A touch display device (200) comprising a display panel (DP) and a touch driver circuit (STIC) is configured to detect a touch by a finger (FG) or a pen (PEN) and to operate in a pen search mode (Fig. 13) and a local scan mode (Fig. 14), each mode comprising display and blank periods. The touch driver circuit (STIC) is configured to output a pen communications information signal (BCS) to touch electrodes (TE) for transmitting the pen communications information signal (BCS) to the pen (PEN) during blank periods of the pen search mode and to sense a pen output signal (POS) output by the pen (PEN) in response to the pen communications information signal (BCS) during the display periods.

公开(公告)号：EP3582091A1

公开(公告)日：2019-12-18

申请号：EP19179967.5

申请日：2019-06-13

Applicant: LG Display Co., Ltd.

Inventor： KIM, SungChul ,  KIM, CheolSe ,  KIM, HoonBae ,  KIM, SunYeop ,  KANG, Seongkyu

IPC: G06F3/041 ,  G06F3/044

Abstract: The present disclosure relates to a touch display device, a touch sensing circuit (TDC), and a driving method. More specifically, the present disclosure relates to a touch display device, a touch sensing circuit (TDC), and a driving method, in which multiple touch electrodes (TE) are grouped into multiple touch electrode groups, and sensing is concurrently performed for each of the multiple touch electrode groups, so that excellent touch sensitivity and a fast touch sensing speed are allowed.

公开(公告)号：EP4075245A1

公开(公告)日：2022-10-19

申请号：EP22177472.2

申请日：2015-12-21

Applicant: LG Display Co., Ltd.

Inventor： KANG, Seongkyu ,  KIM, SungChul

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch sensitive display device (100), and a method of driving the same. When touch driving is ended and before display driving begins to be performed, post-setting driving may be performed so as to accurately perform display driving without the influence of ended touch driving, thereby improving image quality.

公开(公告)号：EP3582213A1

公开(公告)日：2019-12-18

申请号：EP19179960.0

申请日：2019-06-13

Applicant: LG Display Co., Ltd.

Inventor： KIM, HoonBae ,  KIM, CheolSe ,  KIM, SungChul ,  KIM, SunYeop ,  KANG, Seongkyu

IPC: G09G3/20 ,  G06F3/041 ,  G09G3/3225 ,  G09G3/36

Abstract: A touch display device, a data driving circuit (DDC), and a driving method are provided. The touch display device, the data driving circuit (DDC), and the driving method convert an image digital signal into an image analog signal in response to a gamma reference voltage (EGBI_M) which is applied to the touch electrodes (TE) arranged in the display panel (DISP) and which is modulated in synchronization with a first touch electrode driving signal (TDS1) swinging with a first amplitude (AMP1) and output a data signal (Vdata) corresponding to the image analog signal to the data lines (DL). Accordingly, it is possible to effectively simultaneously perform display and touch sensing.

公开(公告)号：EP3582092A1

公开(公告)日：2019-12-18

申请号：EP19180000.2

申请日：2019-06-13

Applicant: LG Display Co., Ltd.

Inventor： KIM, HoonBae ,  KIM, CheolSe ,  KIM, SungChul ,  KIM, SunYeop ,  KANG, Seongkyu ,  SHIN, SeungMok ,  LEE, SungHoon

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36

Abstract: A touch display device (100) and a method of driving the same. A transition value due to polarity inversion of a data voltage supplied to a predetermined number of adjacent subpixels is reduced by varying an inversion pattern by analysis of image data, so that fluctuations in the voltage of touch electrodes (TE) due to the transition of the data voltage are minimized. Accordingly, noise due to fluctuations in the voltage of the touch electrodes (TE) is removed so as to improve the performance of touch sensing performed in a period in which display driving is performed.

公开(公告)号：EP3156884A1

公开(公告)日：2017-04-19

申请号：EP15201494.0

申请日：2015-12-21

Applicant: LG Display Co., Ltd.

Inventor： KANG, Seongkyu ,  KIM, SungChul

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G09G5/006 ,  G09G2300/0413 ,  G09G2310/0245 ,  G09G2310/0275 ,  G09G2310/0297 ,  G09G2310/08

Abstract: A touch circuit, a display driver circuit, a touch display device (100), and a method of driving the same. After display driving is ended and before touch driving begins to be performed, touch driving and touch sensing are accurately performed through pre-setting driving without the influence of display driving that was ended already. An accurate touch sensing result without touch sensing noise is obtained.

Abstract translation: 一种触控电路，显示驱动器电路，一触控显示装置（100），以及驱动其的方法。 AfterDisplayState驾驶结束之前触摸驱动开始执行，触摸驱动和触摸传感的准确设定通过预先设置来执行驾驶无显示驱动的影响做了什么结束了。 没有触摸感测噪声的精确的触摸感测结果被获得。