公开(公告)号：US11874483B2

公开(公告)日：2024-01-16

申请号：US16814189

申请日：2020-03-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kuhyun Kang ,  Muhyun Kim ,  Geunwoo Yug ,  Seoin Han

IPC: G02B5/30 ,  G02F1/1333 ,  G02F1/1335 ,  G06F1/16 ,  G09F9/30 ,  H10K50/86 ,  H10K59/12 ,  H10K102/00

CPC classification number: G02B5/3041 ,  G06F1/1641 ,  G06F1/1652 ,  G09F9/301 ,  H10K50/865 ,  G02F1/133305 ,  G02F1/133528 ,  H10K59/12 ,  H10K2102/311

Abstract: A polarization film includes: a base substrate in which a folding axis and a stretched axis are defined; and a deformation portion located at an edge of the base substrate. The stretched axis forms an angle of less than about 45° with respect to the folding axis. The display device, in which a folding area at which a folding axis is located and a non-folding area neighboring the folding area are defined, includes a display panel; a first adhesive layer on the display panel; and a polarization film on the first adhesive layer, where a stretched axis is defined in the polarization film. An angle between the folding axis and the stretched axis is less than about 45°.

公开(公告)号：US11084129B2

公开(公告)日：2021-08-10

申请号：US15828241

申请日：2017-11-30

Applicant: Samsung Display Co., Ltd.

Inventor： Kuhyun Kang ,  Ilyoung Jeong ,  Gyoowan Han

IPC: B23K26/06 ,  B23K26/38 ,  B23K26/082 ,  B23K26/0622 ,  G02B5/30 ,  B23K103/00

Abstract: A polarizing plate-cutting device including a laser beam generator configured to emit a laser beam, a scanner including a rotating mirror configured to reflect the laser beam emitted from the laser beam generator, and a housing accommodating the rotating mirror, a condenser lens configured to condense the laser beam reflected from the rotating mirror, and a mounting block onto which the laser beam condensed by the condenser lens is irradiated and to which a polarizing plate is mounted, wherein the mounting block is fixed with respect to the scanner while the polarizing plate is being cut, and wherein the polarizing plate includes a stacking of a base substrate and a polarizing layer, the base substrate being closer to the condenser lens than the polarizing layer, and a heat resistance of the polarizing layer being lower than that of the base substrate.

公开(公告)号：US10910596B2

公开(公告)日：2021-02-02

申请号：US16439625

申请日：2019-06-12

Applicant: Samsung Display Co., Ltd.

Inventor： Jinhyeong Kim ,  Kuhyun Kang

IPC: H01L51/52 ,  H01L51/00 ,  H01L51/56 ,  B23K26/38 ,  B23K26/364

Abstract: In a method for manufacturing a display device, the method includes: providing a display panel divided into a cutting area and a body part surrounding the cutting area; attaching a dummy film on a bottom surface of the display panel; cutting the cutting area by irradiating laser light toward a cutting line defined as a boundary between the cutting area and the body part; irradiating the laser light to a groove line of the dummy film, which overlaps the cutting line, to define a groove in the dummy film along the groove line; and separating the dummy film from the body part.

公开(公告)号：US10751838B2

公开(公告)日：2020-08-25

申请号：US15814231

申请日：2017-11-15

Applicant: Samsung Display Co., Ltd.

Inventor： Ilyoung Jeong ,  Gyoowan Han ,  Jaeil Kim ,  Kuhyun Kang ,  Soobum Park

IPC: B23K26/38 ,  B23K26/082 ,  B23K26/03 ,  B23K26/08 ,  B23K26/402 ,  C03B33/04 ,  C03B33/09 ,  B23K26/0622 ,  B23K26/04 ,  B23K103/00

Abstract: A laser cutting apparatus and a laser cutting method are provided. A laser cutting method includes: preparing an object on a stage; cutting the object into a set shape by relatively moving and irradiating a laser beam along the set shape with respect to the object; and performing uniform heating compensation to reduce accumulation of thermal energy of the laser beam resulting from a change of speed at a shift point where a travelling direction of the laser beam with respect to the object changes.

公开(公告)号：US12151313B2

公开(公告)日：2024-11-26

申请号：US17387950

申请日：2021-07-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kuhyun Kang ,  Ilyoung Jeong ,  Gyoowan Han

IPC: B23K26/38 ,  B23K26/06 ,  B23K26/0622 ,  B23K26/082 ,  B23K103/00 ,  G02B5/30

Abstract: A polarizing plate-cutting device including a laser beam generator configured to emit a laser beam, a scanner including a rotating mirror configured to reflect the laser beam emitted from the laser beam generator, and a housing accommodating the rotating mirror, a condenser lens configured to condense the laser beam reflected from the rotating mirror, and a mounting block onto which the laser beam condensed by the condenser lens is irradiated and to which a polarizing plate is mounted, wherein the mounting block is fixed with respect to the scanner while the polarizing plate is being cut, and wherein the polarizing plate includes a stacking of a base substrate and a polarizing layer, the base substrate being closer to the condenser lens than the polarizing layer, and a heat resistance of the polarizing layer being lower than that of the base substrate.

公开(公告)号：US20180133842A1

公开(公告)日：2018-05-17

申请号：US15814231

申请日：2017-11-15

Applicant: Samsung Display Co., Ltd.

Inventor： Ilyoung Jeong ,  Gyoowan Han ,  Jaeil Kim ,  Kuhyun Kang ,  Soobum Park

IPC: B23K26/38 ,  B23K26/04 ,  B23K26/0622

CPC classification number: B23K26/38 ,  B23K26/03 ,  B23K26/04 ,  B23K26/0622 ,  B23K26/082 ,  B23K26/0853 ,  B23K26/0876 ,  B23K26/402 ,  B23K2103/54 ,  C03B33/04 ,  C03B33/091

Abstract: A laser cutting apparatus and a laser cutting method are provided. A laser cutting method includes: preparing an object on a stage; cutting the object into a set shape by relatively moving and irradiating a laser beam along the set shape with respect to the object; and performing uniform heating compensation to reduce accumulation of thermal energy of the laser beam resulting from a change of speed at a shift point where a travelling direction of the laser beam with respect to the object changes.