公开(公告)号：US20230216012A1

公开(公告)日：2023-07-06

申请号：US18091356

申请日：2022-12-29

Applicant: LG Display Co., Ltd.

Inventor： Nam Kook Kim ,  Sung Woo Choi ,  Seon Hui Hwang

IPC: H01L33/62 ,  H01L25/075 ,  G02F1/13357

CPC classification number: H01L33/62 ,  H01L25/0753 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/133606

Abstract: A back-light unit including light-emitting chips and a display apparatus are disclosed. The back-light unit includes a driving voltage line on a substrate, and a ground voltage line spaced apart from the driving voltage line. The light-emitting chips are on a lower insulating layer covering the driving voltage line and the ground voltage line. A driving chip electrically connected to the ground voltage line may be on the substrate. Each of the light-emitting chips may be electrically connected between the driving voltage line and the driving chip by emission connecting lines. A driving dummy pattern and/or a ground dummy pattern is between the light-emitting chips and the emission connecting lines. The driving dummy pattern is electrically connected to the driving voltage line, and the ground dummy pattern is electrically connected to the ground voltage line. Thus, a luminance difference of the light-emitting chips may be prevented or at least reduced.

公开(公告)号：US20220206620A1

公开(公告)日：2022-06-30

申请号：US17561555

申请日：2021-12-23

Applicant: LG Display Co., Ltd.

Inventor： Hwan Keon Lee ,  Nam Kook Kim ,  Sang Hyuk Won ,  Seon Hee Lee

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: A touch display apparatus is provided. The touch display apparatus may include an encapsulating unit covering light-emitting devices, a touch sensor on the encapsulating unit, and a black matrix on the touch sensor. The touch sensor may include first touch electrode disposed side by side, first bridge electrodes connecting the first touch electrodes in a first direction, second touch electrodes disposed between the first touch electrodes, and second bridge electrodes connecting the second touch electrode in a second direction perpendicular to the first direction. The second bridge electrodes may cross the first bridge electrodes. The second bridge electrodes may be disposed on a layer different from the second touch electrodes. For example, the second touch electrodes may be disposed on the same layer as the first touch electrodes and the first bridge electrodes. The planar shape of the black matrix may be the same as the planar shape by the first touch electrodes, the first bridge electrodes and the second touch electrodes. Thus, in the touch display apparatus, the process efficiency may be improved.

公开(公告)号：US12078888B2

公开(公告)日：2024-09-03

申请号：US17532198

申请日：2021-11-22

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyung Ha Lee ,  Sung Woo Choi ,  Nam Kook Kim

IPC: G02F1/1335 ,  G02F1/13357 ,  H01L25/075 ,  H01L33/62

CPC classification number: G02F1/133612 ,  G02F1/133603 ,  H01L25/0753 ,  H01L33/62

Abstract: A display device including a backlight unit that includes a barrier layer disposed between a light-emitting chip and an electrode pad to reduce the contact area between a solder and the electrode pad due to the barrier layer, so that a portion of the electrode pad overlapping with the barrier layer is left behind without being diffused into the solder, and rework can be performed on a process of mounting the light-emitting chip.

公开(公告)号：US09218985B2

公开(公告)日：2015-12-22

申请号：US14475741

申请日：2014-09-03

Applicant: LG Display Co., Ltd.

Inventor： Soon Sung Yoo ,  Youn Gyoung Chang ,  Seung Hee Nam ,  Nam Kook Kim

IPC: B41M3/00 ,  H01L21/308 ,  B41F13/193 ,  G02F1/1333 ,  H01L21/3213 ,  H01L27/12

CPC classification number: H01L21/3086 ,  B41F13/193 ,  B41M3/00 ,  G02F1/1333 ,  H01L21/32139 ,  H01L27/1288

Abstract: Provided are a roller apparatus, a printing method and a method of fabricating an LCD device using the same, which can minimize the number of processes and a printing defect. In the printing method, first patterns are formed on a blanket. The first patterns have different surface energy from that of the blanket, and the blanket is formed around a roller. The roller is rotated and a printing material is dropped to form second patterns on the blanket between the first patterns. The second patterns are transferred from the roller onto a substrate.

公开(公告)号：US11846965B2

公开(公告)日：2023-12-19

申请号：US17561555

申请日：2021-12-23

Applicant: LG Display Co., Ltd.

Inventor： Hwan Keon Lee ,  Nam Kook Kim ,  Sang Hyuk Won ,  Seon Hee Lee

IPC: G09G5/00 ,  G06F3/041 ,  G06F3/044 ,  H10K50/844 ,  H10K50/86 ,  H10K59/38 ,  H10K59/40 ,  H10K59/122 ,  H10K71/00 ,  H10K59/12

CPC classification number: G06F3/0412 ,  G06F3/0443 ,  G06F3/0446 ,  G06F3/04164 ,  H10K50/844 ,  H10K50/865 ,  H10K59/122 ,  H10K59/38 ,  H10K59/40 ,  H10K71/00 ,  G06F2203/04111 ,  G06F2203/04112 ,  H10K59/1201

Abstract: A touch display apparatus is provided. The touch display apparatus may include an encapsulating unit covering light-emitting devices, a touch sensor on the encapsulating unit, and a black matrix on the touch sensor. The touch sensor may include first touch electrode disposed side by side, first bridge electrodes connecting the first touch electrodes in a first direction, second touch electrodes disposed between the first touch electrodes, and second bridge electrodes connecting the second touch electrode in a second direction perpendicular to the first direction. The second bridge electrodes may cross the first bridge electrodes. The second bridge electrodes may be disposed on a layer different from the second touch electrodes. For example, the second touch electrodes may be disposed on the same layer as the first touch electrodes and the first bridge electrodes. The planar shape of the black matrix may be the same as the planar shape by the first touch electrodes, the first bridge electrodes and the second touch electrodes. Thus, in the touch display apparatus, the process efficiency may be improved.