公开(公告)号：US11195591B2

公开(公告)日：2021-12-07

申请号：US16235560

申请日：2018-12-28

Applicant: LG Display Co., Ltd.

Inventor： Jinho Lim ,  Jonghyun Yang ,  Saerom Lee

IPC: G11C19/00 ,  G11C19/28 ,  G09G3/20 ,  G09G3/36

Abstract: The present disclosure provides a shift register, the register including n stages, each being configured for performing forward and reverse operations, wherein in the forward operation, a gate signal is output in a forward direction, wherein in the reverse operation, a gate signal is output in a reverse direction, wherein a n-th stage among the n stages includes: a charging unit configured for charging a Q node in a response to a reception of a forward start signal or a reverse start signal; a gate signal output unit configured for outputting a gate signal in a response to the Q node being charged by the charging unit; and a discharging unit configured for discharging the Q node after the output unit has outputted the gate signal, wherein the charging unit includes a dummy transistor and a reverse start transistor, both being connected to the Q node.

公开(公告)号：US10310653B2

公开(公告)日：2019-06-04

申请号：US15799789

申请日：2017-10-31

Applicant: LG Display Co., Ltd.

Inventor： Sudong Kim ,  Jinho Lim ,  Sangbin Lee ,  Jongseok Kim

IPC: G06F11/22 ,  G06F3/041 ,  G06F3/044 ,  G02F1/1345 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362

Abstract: A display panel includes a plurality of touch blocks matrix-arranged and corresponding to each of two or more adjacent pixel areas of the plurality of pixel areas, and first, second, third and fourth test signal lines through which first, second, third and fourth test signals are supplied by an auto probing unit. Accordingly, not only a defect in an image output function, but also a defect in a touch sensing function can be inspected prior to a modularization process by using the first, second, third and fourth test signals.

公开(公告)号：US09691343B2

公开(公告)日：2017-06-27

申请号：US15235101

申请日：2016-08-12

Applicant: LG Display Co., Ltd.

Inventor： Jinho Lim ,  Jaehoon Park ,  Haksu Kim ,  Cheolhwan Lee ,  Kyunghyun Jeon

IPC: G09G3/36 ,  G09G3/3275 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/041 ,  G06F3/044

CPC classification number: G09G3/3688 ,  G02F1/13306 ,  G02F1/133345 ,  G02F1/13338 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/1345 ,  G02F1/13454 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/13629 ,  G02F2201/121 ,  G02F2201/123 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/3275 ,  G09G2300/0426 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0276

Abstract: A disclosed display device comprises a data line of a display panel, a first switching circuit of the display panel, the first switching circuit including an input and a transistor to pass a test voltage from the input of the first switching circuit to a transistor electrode of the transistor, and a bridge pattern of the display panel, the bridge pattern electrically connecting the transistor electrode to the data line, the bridge pattern being in a different layer of the display panel than the transistor electrode.

公开(公告)号：US10186180B2

公开(公告)日：2019-01-22

申请号：US15232544

申请日：2016-08-09

Applicant: LG DISPLAY CO., LTD.

Inventor： Jaehoon Park ,  Jinho Lim ,  Cheolhwan Lee ,  Kyunghyun Jeon

IPC: G09G3/36 ,  G09G3/00 ,  G09G3/3266 ,  G09G3/20

Abstract: A display device includes a display panel including a first and a second non-display area, a main active area, and a sub active area, wherein the active areas each include a matrix of sub-pixels; a data driver in the first non-display area to provide image data to the matrices of sub-pixels; a main gate driver in the second non-display area to provide a corresponding gate signal to each sub-pixel in the main active area; a sub gate driver in the second non-display area to provide a corresponding gate signal to each sub-pixel in the sub active area; an auto-probe test pad in the non-display area for transmitting a first start signal received from an auto-probe signal generating device to one of the main gate driver and the sub gate driver while testing the display panel; and a signal transmission circuit connecting the main gate driver and the sub gate driver.

公开(公告)号：US10437386B2

公开(公告)日：2019-10-08

申请号：US15246163

申请日：2016-08-24

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyunghyun Jeon ,  Jaehoon Park ,  Jinho Lim ,  Cheolhwan Lee

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/00 ,  G09G3/36

Abstract: A display panel having a touch sensor includes a pixel array, touch sensor blocks, a touch inspection pad unit, and an image inspection pad unit. In the pixel array, a plurality of pixels is disposed in a matrix form. The touch sensor blocks are connected to respective pluralities of the pixels in the pixel array. The touch inspection pad unit divides the touch sensor blocks into odd-numbered touch sensor blocks and even-numbered touch sensor blocks and a first touch inspection pad is coupled to the odd-numbered touch sensor blocks, while a second touch inspection pad is coupled to the odd-numbered touch sensor blocks. The image inspection pad part is commonly coupled to the odd-numbered touch sensor blocks and the even-numbered touch sensor blocks.