公开(公告)号：US10578925B2

公开(公告)日：2020-03-03

申请号：US15354875

申请日：2016-11-17

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeok Jin Lee ,  Oh Jeong Kwon ,  Jae Bum Cho ,  Ka Eun Kim ,  Su Jin Kim ,  Ki Chul Shin

IPC: G02F1/1337 ,  C09K19/56 ,  G02F1/1341

Abstract: A liquid crystal display device includes a first substrate, a first alignment film disposed on the first substrate, a second substrate, and a liquid crystal layer disposed between the first alignment film and the second substrate. The first substrate has a surface curved in a first direction and the second substrate has a surface curved in the first direction. The first alignment film includes a polymerization initiator and a polymer chain that is a copolymer of a dianhydride-based compound and a diamine-based compound. The polymer chain includes a main chain including a repeating unit including an imide group, a first side chain, including a vertical align group, bonded to the main chain, and a second side chain bonded to the main chain. The functional group includes a biphenyl group or a terphenyl group.

公开(公告)号：US10520781B2

公开(公告)日：2019-12-31

申请号：US16374519

申请日：2019-04-03

Applicant: Samsung Display Co., Ltd.

Inventor： Jang Wi Ryu ,  Cheol Shin ,  Hak Sun Chang ,  Ki Chul Shin ,  Jae-Soo Jang ,  Ka Eun Kim ,  Ho Kil Oh ,  Se Hyun Lee ,  Hyo Ju Jung ,  Sang Hyeon Song ,  Sang Jin Jeon

IPC: G02F1/137 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/139 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1362 ,  G02F1/1368

Abstract: The present invention relates to a liquid crystal display including: a lower electrode including a unit pixel electrode; an upper electrode including an upper unit electrode facing the unit pixel electrode; and a liquid crystal layer between the lower electrode and the upper electrode and including a plurality of liquid crystal molecules aligned approximately perpendicular to the surfaces of the lower electrode and the upper electrode in the absence of an electric field, wherein the unit pixel electrode includes a stem forming a boundary between a plurality of sub-regions and a plurality of minute branches extending in different directions in two different sub-regions, the upper unit electrode includes an opening facing the stem and extending parallel to the stem, any alignment aid to pretilt the liquid crystal molecules is absent, and a length of the minute branches is equal to or less than about 53 μm.

公开(公告)号：US10261379B2

公开(公告)日：2019-04-16

申请号：US15271034

申请日：2016-09-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jang Wi Ryu ,  Cheol Shin ,  Hak Sun Chang ,  Ki Chul Shin ,  Jae-Soo Jang ,  Ka Eun Kim ,  Ho Kil Oh ,  Se Hyun Lee ,  Hyo Ju Jung ,  Sang Hyeon Song ,  Sang Jin Jeon

IPC: G02F1/1337 ,  G02F1/137 ,  G02F1/1343 ,  G02F1/139 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1362 ,  G02F1/1368

Abstract: The present invention relates to a liquid crystal display including: a lower electrode including a unit pixel electrode; an upper electrode including an upper unit electrode facing the unit pixel electrode; and a liquid crystal layer between the lower electrode and the upper electrode and including a plurality of liquid crystal molecules aligned approximately perpendicular to the surfaces of the lower electrode and the upper electrode in the absence of an electric field, wherein the unit pixel electrode includes a stem forming a boundary between a plurality of sub-regions and a plurality of minute branches extending in different directions in two different sub-regions, the upper unit electrode includes an opening facing the stem and extending parallel to the stem, any alignment aid to pretilt the liquid crystal molecules is absent, and a length of the minute branches is equal to or less than about 53 μm.

公开(公告)号：US10120254B2

公开(公告)日：2018-11-06

申请号：US14934931

申请日：2015-11-06

Applicant: Samsung Display Co., Ltd.

Inventor： Hoon Kim ,  Hyun Joon Kim ,  Ki Chul Shin

IPC: G02F1/1362 ,  G02F1/1343

Abstract: A liquid crystal display includes a first substrate and a second substrate facing each other. The liquid crystal display further includes a gate line and a data line disposed on the first substrate, a first thin film transistor and a second thin film transistor connected to the gate line and the data line, a first subpixel electrode connected to the first thin film transistor, a third thin film transistor connected to the second thin film transistor, a second subpixel electrode connected to the third thin film transistor; and a liquid crystal layer interposed between the first substrate and the second substrate. The third thin film transistor includes a first terminal applied with a same constant voltage during all times of operation, a second terminal directly connected to the second thin film transistor, and a third terminal connected to the second subpixel electrode.

公开(公告)号：US10026369B2

公开(公告)日：2018-07-17

申请号：US15012659

申请日：2016-02-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sung-Jae Yun ,  Dong Han Song ,  Ki Chul Shin ,  Hyeok Jin Lee

IPC: G06F1/00 ,  G09G3/36 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1337

Abstract: A liquid crystal display having a curved surface includes: a display panel including a first display panel, a second display panel, and a liquid crystal layer interposed therebetween and including liquid crystal molecules. The first display panel includes a first substrate on which a plurality of gate lines and data lines are formed, a first electrode, and a pixel electrode. The second display panel includes a second substrate facing the first substrate and a second electrode. The liquid crystal display further includes a common voltage supplier applying two voltages having a predetermined voltage difference to the first and second electrodes within a period before a frame displaying an image on the display panel; a gate driver applying a gate signal to each of the gate lines after the period; and a data driver applying a data voltage to the pixel electrode corresponding to the gate signal.

公开(公告)号：US09995973B2

公开(公告)日：2018-06-12

申请号：US14975046

申请日：2015-12-18

Applicant: Samsung Display Co., Ltd.

Inventor： Dong-Chul Shin ,  Oh Jeong Kwon ,  Su Jin Kim ,  Jin Won Kim ,  Dong Han Song ,  Ki Chul Shin ,  Sung-Jae Yun ,  Hyeok Jin Lee

IPC: G02F1/1343 ,  G02F1/1337

CPC classification number: G02F1/134309 ,  G02F1/133707 ,  G02F1/1343 ,  G02F1/13439

Abstract: A display device may include a common electrode, a first pixel electrode, a second pixel electrode, an insulation layer, and a liquid crystal layer. The first pixel electrode overlaps the common electrode. The second pixel electrode is electrically connected to the first pixel electrode and is positioned between the first pixel electrode and the common electrode. A first portion of the second pixel electrode does not overlap the first pixel electrode in a direction perpendicular to the common electrode. A second portion of the second pixel electrode overlaps a first portion of the first pixel electrode. A second portion of the first pixel electrode does not overlap the second pixel electrode in the direction perpendicular to the common electrode. The insulating layer is positioned between the first pixel electrode and the second pixel electrode. The liquid crystal layer is positioned between the common electrode and the second pixel electrode.

公开(公告)号：US09989815B2

公开(公告)日：2018-06-05

申请号：US15005421

申请日：2016-01-25

Applicant: Samsung Display Co. Ltd.

Inventor： Sang Gyun Kim ,  Heung Shik Park ,  Kyung Min Kim ,  Hoon Kim ,  Ki Chul Shin

IPC: G02F1/1343 ,  G02F1/1337

CPC classification number: G02F1/134309 ,  G02F1/133707 ,  G02F1/133788 ,  G02F2001/134345

Abstract: A liquid crystal display device includes an insulating substrate, a data line disposed on the insulating substrate and extended in a first direction, a plurality of pixel electrodes which is disposed on the insulating substrate and in which a slit pattern is defined, a common electrode facing the pixel electrodes, and a liquid crystal layer interposed between the pixel electrodes and the common electrode, where each of the pixel electrodes includes an edge electrode portion and a plurality of branch electrode portions protruding in a direction toward a central portion of the pixel electrode from the edge electrode portion, and at least a portion of the edge electrode portion overlaps the data line.

公开(公告)号：US09958739B2

公开(公告)日：2018-05-01

申请号：US15414209

申请日：2017-01-24

Applicant: Samsung Display Co., Ltd.

Inventor： Cheol Shin ,  Hak Sun Chang ,  Jang Wi Ryu ,  Jae-Soo Jang ,  Ki Chul Shin ,  Seong Young Lee

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/1368 ,  G02F1/1337 ,  H01L29/423 ,  H01L27/12 ,  G09G3/36 ,  G09G3/20

CPC classification number: G02F1/134336 ,  G02F1/133345 ,  G02F1/133707 ,  G02F1/133753 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/13624 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/133742 ,  G02F2001/134318 ,  G02F2001/134345 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2201/40 ,  G02F2203/30 ,  G09G3/2074 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0426 ,  G09G2300/0465 ,  H01L27/124 ,  H01L29/42384

Abstract: A liquid crystal display includes an insulation substrate, a plurality of pixels disposed on the insulation substrate, where each pixel has a shape elongated in a horizontal direction, and includes a thin film transistor formation region and a display area; and a reference voltage line extending in a vertical direction along a center of the display area, where the display area includes a single high-gray subpixel area and two low-gray subpixel areas, and the single high-gray subpixel area is positioned between the two low-gray subpixel areas.

公开(公告)号：US09720291B2

公开(公告)日：2017-08-01

申请号：US14878634

申请日：2015-10-08

Applicant: Samsung Display Co., Ltd.

Inventor： Hoon Kim ,  Ki Chul Shin ,  Dan Bi Yang

IPC: G02F1/1343 ,  G02F1/1362

CPC classification number: G02F1/134309 ,  G02F1/136227 ,  G02F1/13624 ,  G02F2001/134345

Abstract: A liquid crystal display includes: a first substrate; a gate line disposed on the first substrate; an insulating layer disposed on the gate line; and first and second subpixel electrodes respectively including pixel branch electrodes, wherein the first and second subpixel electrodes respectively comprise first and second regions, the first and second regions of the first subpixel electrode have a polygonal shape where two sides meet in a diagonal line, and one of sides of the polygon, excluding the diagonal line, is perpendicular to the gate line, the first and second regions of the second subpixel electrode have grooves disposed at one of sides thereof corresponding to the shape of the first subpixel electrode, the first and second regions of the first subpixel electrode are connected with each other, and the first and second regions of the second subpixel electrode are connected with each other.

公开(公告)号：US20170139280A1

公开(公告)日：2017-05-18

申请号：US15354875

申请日：2016-11-17

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeok Jin Lee ,  Oh Jeong Kwon ,  Jae Bum Cho ,  Ka Eun Kim ,  Su Jin Kim ,  Ki Chul Shin

IPC: G02F1/1337 ,  C09K19/56 ,  G02F1/1341

Abstract: A liquid crystal display device includes a first substrate, a first alignment film disposed on the first substrate, a second substrate, and a liquid crystal layer disposed between the first alignment film and the second substrate. The first substrate has a surface curved in a first direction and the second substrate has a surface curved in the first direction. The first alignment film includes a polymerization initiator and a polymer chain that is a copolymer of a dianhydride-based compound and a diamine-based compound. The polymer chain includes a main chain including a repeating unit including an imide group, a first side chain, including a vertical align group, bonded to the main chain, and a second side chain bonded to the main chain. The functional group includes a biphenyl group or a terphenyl group.