公开(公告)号：US20230373211A1

公开(公告)日：2023-11-23

申请号：US18300446

申请日：2023-04-14

Applicant: Samsung Display Co., LTD.

Inventor： Kyong Sub KIM ,  Jae Hoon KIM ,  Sang Hoon PARK ,  Dong Woo SHIN

IPC: B41J2/14

CPC classification number: B41J2/14201 ,  B41J2002/14419

Abstract: An inkjet printing apparatus may include a stage on which a substrate is seated; a nozzle part disposed above the stage and spraying an ink onto the substrate, the ink containing a solvent and solid substances; and a head part that supplies the ink to the nozzle part. The nozzle part includes an internal flow path extended in a first direction, through which the ink is supplied from the head prat; and an inlet in which an entrance area is defined. The ink is introduced in a second direction intersecting the first direction from the internal flow path through the entrance area. The inlet includes an inclined surface adjacent to the entrance area and defining the entrance area; and a flat surface parallel to the first direction. An angle between the inclined surface and the flat surface is an acute angle.

公开(公告)号：US20220396073A1

公开(公告)日：2022-12-15

申请号：US17830796

申请日：2022-06-02

Applicant: Samsung Display Co., LTD.

Inventor： Sung Ho PARK ,  Kyong Sub KIM ,  Jae Won CHOI

IPC: B41J2/06 ,  B41J2/165

Abstract: An inkjet printing apparatus includes a stage on which a target substrate is mounted, and an inkjet head positioned above the stage, wherein the inkjet head includes an ejection part including a plurality of nozzles that spray ink containing a plurality of particles, a filter part disposed above the ejection part, and selectively passing the plurality of particles, and an electric field generating electrode that is disposed in the filter part and generates an electric field in the filter part.

公开(公告)号：US20230256759A1

公开(公告)日：2023-08-17

申请号：US18102116

申请日：2023-01-27

Applicant: Samsung Display Co., LTD.

Inventor： Kyong Sub KIM ,  Sung Ho PARK ,  Jae Won CHOI

IPC: B41J29/393 ,  B41J2/175 ,  B41J29/377

CPC classification number: B41J29/393 ,  B41J2/17523 ,  B41J29/377

Abstract: An inkjet printing apparatus includes: a stage on which a substrate is disposed; an inkjet head disposed above the stage and spraying ink on the substrate; an ink storage that stores the ink; a first link pipe connecting the ink storage and the inkjet head and supplying the ink from the ink storage to the inkjet head; a second link pipe connecting the ink storage and the inkjet head and collecting a portion of the ink from the inkjet head to the ink storage; and a temperature controller including a cooler and a heater disposed respectively in opposite sides thereof. The portion of the ink remains in the inkjet head after the ink is ejected from the inkjet head on the substrate, the first link pipe is disposed on the heater of the temperature controller, and the second link pipe is disposed on the cooler of the temperature controller.

公开(公告)号：US20220165809A1

公开(公告)日：2022-05-26

申请号：US17499195

申请日：2021-10-12

Applicant: Samsung Display Co., LTD.

Inventor： Kyong Sub KIM ,  Sung Ho PARK ,  Jae Won CHOI

IPC: H01L27/32 ,  H01L51/56

Abstract: A display device comprises a display area and a non-display area, sub-pixels in the display area, each sub-pixel including a first electrode and a second electrode extended in a first direction and light-emitting elements disposed on the first electrode and the second electrode, sub-lines disposed in the non-display area and extended in a second direction, and conductive patterns extended in the first direction, each conductive pattern being connected to at least one of the plurality of sub-lines. The sub-lines comprise first, second, and third sub-lines sequentially disposed from the first sub-line toward the display area. The conductive patterns are disposed in at least one of the sub-pixels closest to the sub-lines. The conductive patterns comprise a first conductive pattern connected to the first sub-line, second conductive patterns connected to the second sub-line, and a third conductive pattern connected to the third sub-line.

公开(公告)号：US20230253529A1

公开(公告)日：2023-08-10

申请号：US17971304

申请日：2022-10-21

Applicant: Samsung Display Co., LTD.

Inventor： Kyong Sub KIM

IPC: H01L33/38 ,  H01L33/00 ,  H01L33/62 ,  H01L33/50

CPC classification number: H01L33/387 ,  H01L33/005 ,  H01L33/62 ,  H01L33/50 ,  H01L2933/0016 ,  H01L2933/0066

Abstract: According to a method of manufacturing a display device, an insulating layer is formed on a panel including a first electrode and a second electrode provided in each of emission areas and spaced apart from each other. A first voltage is applied to at least one of the first and second electrodes. Charged light emitting elements are attached to the emission areas using static electricity between the light emitting elements and the insulating layer.

公开(公告)号：US20230028194A1

公开(公告)日：2023-01-26

申请号：US17868688

申请日：2022-07-19

Applicant: Samsung Display Co., LTD.

Inventor： Hang Jae LEE ,  Kyong Sub KIM ,  Yuk Hyun NAM ,  Sung Jae YUN

IPC: H01L25/16

Abstract: A display device includes: a substrate; a plurality of pixel columns on the substrate, each of the plurality of pixel columns including a plurality of pixel groups each including a first pixel and a second pixel arranged along a first direction; and a bank enclosing a perimeter of each of the plurality of pixel groups, the bank including a first opening corresponding to each of the plurality of pixel groups, and a second opening located between two pixel groups adjacent to each other in the first direction among the plurality of pixel groups.

公开(公告)号：US20220097370A1

公开(公告)日：2022-03-31

申请号：US17445171

申请日：2021-08-16

Applicant: Samsung Display Co., Ltd.

Inventor： Kyong Sub KIM ,  Geun Tak KIM ,  Jae Hoon KIM

IPC: B41J2/14

Abstract: An Inkjet printer includes a substrate on a stage. A print head unit is positioned above the stage and discharges an ink on the substrate. The print head unit includes a manifold for guiding movement of the ink in a first direction therein. A head block is under the manifold and includes a plurality of channels connected to the manifold and piezoelectric elements adjacent to the channels to discharge the ink through the channels. A nozzle unit is under the head block and includes nozzles corresponding to the channels. A dispersion plate is between the manifold and the head block and disperses the ink in a second direction intersecting the first direction to supply the ink to the head block. Resistance plates are between the dispersion plate and the head block, are formed parallel substantially to the second direction, and prevent the ink from flowing in the first direction.