公开(公告)号：US11328637B2

公开(公告)日：2022-05-10

申请号：US16593402

申请日：2019-10-04

Applicant: Samsung Display Co., Ltd.

Inventor： Dae Hong Kim ,  Hyungjin Lee ,  Sung Hoon Yang ,  Se Yoon Oh

IPC: G06K9/00 ,  G09G3/00 ,  G06T7/00 ,  G01R31/28 ,  G01R19/00 ,  G06T7/70

Abstract: An inspecting device of a display panel includes a contact including first probe pins that contact to data pads of a display panel and second probe pins that contact to common voltage pads of the display panel, a signal generator coupled to the first probe pins, the signal generator configured to generate a first data voltage corresponding to a first gray level and a second data voltage corresponding to a second gray level, a power generator coupled to the second probe pins, the power generator configured to generate a first common voltage and a second common voltage of which a voltage level is different from a voltage level of the second common voltage, and a defect detector configured to detect a defect of the display panel by removing a contact noise generated due to contact failure of the first probe pins and the second probe pins.

公开(公告)号：US12069885B2

公开(公告)日：2024-08-20

申请号：US17511702

申请日：2021-10-27

Applicant: Samsung Display Co., Ltd.

Inventor： Jeongmoon Lee ,  Daehong Kim ,  Hyungjin Lee

IPC: H01L51/52 ,  H01L51/56 ,  H10K50/844 ,  H10K71/00 ,  H10K71/70 ,  H10K59/122 ,  H10K59/124

CPC classification number: H10K50/844 ,  H10K71/00 ,  H10K71/70 ,  H10K59/122 ,  H10K59/124

Abstract: A display device including: a substrate; a display element layer disposed on the substrate; a dam disposed around the display element layer; a plurality of patterns disposed between the dam and the display element layer, and a planarization layer disposed on the display element layer and the patterns, wherein the patterns have a hydrophile-lipophile balance value different from a hydrophile-lipophile balance value of the planarization layer.

公开(公告)号：US11120544B2

公开(公告)日：2021-09-14

申请号：US16574332

申请日：2019-09-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyungjin Lee ,  Dae Hong Kim ,  Minjung Park ,  Sung Hoon Yang ,  Seyoon Oh

IPC: G06T7/00

Abstract: A display panel inspection system includes a camera to image respective frames of a mother substrate in a frame-by-frame manner, a stage to move the mother substrate relative to the camera, an image obtaining unit to store frames imaged by the camera, a gray level extracting unit that obtains gray level values of the frames, a frame matching unit that searches and matches two frames that match each other among the frames imaged by the camera, a correcting unit that performs correction on one of two frames matched with each other in consideration of an alignment error and an image distortion between the two frames, and a comparing unit that compares the gray level values of the two frames matched with each other, after the correction.