公开(公告)号：US20160098126A1

公开(公告)日：2016-04-07

申请号：US14968681

申请日：2015-12-14

Applicant: LG Display Co., Ltd.

Inventor： JungHan Lee ,  HongChul Kim ,  SungChul Kim ,  JeongSeop Lee ,  SeungEun Pyo

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416

Abstract: Discussed are a display device with an integrated touch screen and a method of operating the same. The display device according to an embodiment includes a display panel including a plurality of pixel electrodes; a touch screen including m number of electrodes which are formed to overlap with the plurality of pixel electrodes, wherein m is a multiple of n, and n is an integer equal to or greater than two, and wherein the m electrodes are divided into n number of electrode groups; a touch driver configured to generate a touch scan signal and to supply the generated touch scan signal to a display driver; and the display driver configured to apply a common voltage or the touch scan signal to one or more of the m electrodes depending on a driving mode of the display device.

Abstract translation: 讨论的是具有集成触摸屏的显示装置及其操作方法。 根据实施例的显示装置包括：显示面板，包括多个像素电极; 包括m个与多个像素电极重叠的电极的触摸屏，其中m是n的倍数，n是等于或大于2的整数，并且其中m个电极被分成n个数 的电极组; 触摸驱动器，被配置为产生触摸扫描信号并将产生的触摸扫描信号提供给显示驱动器; 并且所述显示驱动器被配置为根据所述显示装置的驱动模式将公共电压或所述触摸扫描信号施加到所述m个电极中的一个或多个。

公开(公告)号：US10664677B2

公开(公告)日：2020-05-26

申请号：US15841101

申请日：2017-12-13

Applicant: LG Display Co., Ltd.

Inventor： SungYub Lee ,  CheolSe Kim ,  HongChul Kim

IPC: G06F3/044 ,  G06K9/00 ,  G02F1/1333 ,  G02F1/1345 ,  G06F3/041 ,  G06F3/042 ,  G09G3/3266

Abstract: The present disclosure relates to a display device, a display panel, a fingerprint-sensing method, and a circuit for sensing a fingerprint. More particularly, the display device, the display panel, the fingerprint-sensing method, and the circuit for sensing a fingerprint may receive a signal from a data line electrically connected to a pixel electrode through a switching transistor and may detect fingerprint information after a driving voltage is applied to the pixel electrode disposed in a pixel area, thereby detecting a fingerprint without including a separate fingerprint sensor outside a display panel.

公开(公告)号：US10452180B2

公开(公告)日：2019-10-22

申请号：US15707714

申请日：2017-09-18

Applicant: LG Display Co., Ltd.

Inventor： SungYub Lee ,  HongChul Kim ,  YoungJoon Lee ,  Seongkyu Kang

IPC: G06F3/045 ,  G06F3/041 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/044

Abstract: Provided is a driving circuit included in a touch display device, which is capable of performing display driving, touch sensing, and additional sensing in addition to the touch sensing. The driving circuit includes a common electrode driving controller, a pixel electrode driving controller, and a sending unit. The common electrode driving controller is configured to apply a common voltage to a common electrode during a display-driving period. The pixel electrode driving controller is configured to apply a data voltage to a pixel electrode during the display-driving period. The sensing unit is connected to the common electrode driving controller during a first sensing period and to the pixel electrode driving controller during a second sensing period. The sensing unit is configured to sense a change in capacitance between the common electrode or pixel electrode and an object that is in contact with the display panel.

公开(公告)号：US09075463B2

公开(公告)日：2015-07-07

申请号：US13714053

申请日：2012-12-13

Applicant: LG Display Co., Ltd.

Inventor： SeungEun Pyo ,  HongChul Kim

IPC: G06F3/045 ,  G06F3/041 ,  G06F3/044 ,  G09G3/00

CPC classification number: G06F3/041 ,  G06F3/0412 ,  G06F3/044 ,  G09G3/00

Abstract: A display device with an integrated touch screen including a panel including electrodes divided into n number of groups, where n is an integer more than or equal to two; a display driver IC configured to apply a common voltage to the n divided groups when a driving mode of the panel is a display driving mode, and to selectively apply a touch scan signal or the common voltage to the n divided groups when the driving mode of the panel is a touch driving mode; and a touch IC configured to generate the touch scan signal to apply the touch scan signal to the display driver IC.

Abstract translation: 一种具有集成触摸屏的显示装置，包括：面板，其包括分成n个组的电极，其中n是大于或等于2的整数; 显示驱动器IC，被配置为当所述面板的驱动模式为显示驱动模式时，向所述n个分割组施加公共电压，并且当所述驱动模式为所述驱动模式时，选择性地对所述n个分割组施加触摸扫描信号或所述公共电压 面板是触摸驾驶模式; 以及配置为产生触摸扫描信号以将触摸扫描信号施加到显示驱动器IC的触摸IC。