公开(公告)号：US09891747B2

公开(公告)日：2018-02-13

申请号：US14983742

申请日：2015-12-30

Applicant: LG Display Co., Ltd.

Inventor： Hyunwoo Jang ,  Juhong Kim

IPC: G06F3/045 ,  G06F3/041

CPC classification number: G06F3/0416 ,  G06F2203/04104 ,  G06F2203/04808

Abstract: A disclosed method for assigning a touch identification in a multi-touch sensitive display device is includes applying a touch driving signal to touch sensors of a touch screen and generating raw touch data, detecting touch points based on the raw touch data and respectively assigning temporary identifications (IDs) to the touch points, grouping the touch points based on a difference in distances between the touch points to form touch groups, and forming adaptive touch groups respectively based on the touch groups. The method also includes setting a comparison block including one or more of the adaptive touch groups contacting or overlapping each other, and matching the temporary ID assigned to one of the touch points within the comparison block in the current frame to one of a plurality of touch IDs within the comparison block in a previous frame.

公开(公告)号：US12086352B2

公开(公告)日：2024-09-10

申请号：US17979707

申请日：2022-11-02

Applicant: LG Display Co., Ltd.

Inventor： Juhong Kim ,  Hwideuk Lee

IPC: G06F3/041 ,  G06F3/044 ,  H10K59/40

CPC classification number: G06F3/04164 ,  G06F3/0412 ,  G06F3/0443 ,  H10K59/40 ,  G06F3/044 ,  G06F3/0446 ,  G06F2203/04111

Abstract: A transparent touch display device according to embodiments of the disclosure may comprise a substrate including a pixel area, a first transmissive area positioned on a first side of the pixel area, and a second transmissive area positioned on a second side of the pixel area, a driving transistor disposed in the pixel area, an anode electrode disposed in the pixel area, positioned on the driving transistor, and electrically connected with a source electrode or drain electrode of the driving transistor, a light emitting layer positioned on the anode electrode, a display cathode electrode positioned on the light emitting layer, a first touch cathode electrode disposed in the first transmissive area and positioned on a first side of the display cathode electrode, a second touch cathode electrode disposed in the second transmissive area and positioned on a second side of the display cathode electrode, an encapsulation layer disposed on the display cathode electrode, the first touch cathode electrode, and the second touch cathode electrode, and a first touch line overlapping the first touch cathode electrode.

公开(公告)号：US10185421B2

公开(公告)日：2019-01-22

申请号：US14983945

申请日：2015-12-30

Applicant: LG Display Co., Ltd.

Inventor： Younggyu Kim ,  Byounggwan Lee ,  Juhong Kim

IPC: G06F3/041 ,  G06F3/047 ,  G09G3/20 ,  G06F3/044 ,  G09G3/36

Abstract: Provided are a touch sensor embedded display device and a method for driving the same. A method includes: sequentially, in the display period: performing a display scan of a first area of the display panel based on one display line; and applying data of an input image to the pixels of the first area; simultaneously performing: a touch scan of a first touch line of the display panel and a touch scan of a second touch line of the display panel in a touch period following the display period; and simultaneously sensing touch inputs of the touch sensors on the first and second touch lines in the touch period, wherein each of the first and second touch lines overlaps a plurality of display lines, and wherein a width of each of the first and second touch lines is greater than a width of each of the plurality of display lines.