Samsung Display Co., Ltd.

Research Institute of Industrial Science & Technology

Posco Holdings Inc.

Posco Future M Co., Ltd.

Posco

Poscoc Chemical Co., Ltd

Iucf-hyu

Sang Hyuk Lee

Yang-Kook Sun

Sang Cheol Nam

Seok Hyun Nam

Young Hye Son

Jung Hoon Song

Sang Chul Byun

Kwon Young Choi

Jong Il Park

Se Ki Park

Hyun-Cheol Shin

Young Kwang Kim

Jong Hee Park

Hyoung Sik Kim

Jong Hyup Kim

Min Ho Bae

Yong Hwan Kim

Geun Hwangbo

Dong Hun Lee

Jung Kyun Kim

Junghoon Kim

Yong Hoe Kim

Sung-Tae Kim

Min Hye Lee

Ki Su Jung

Do Hyeong Kim

Hye Won Park

Dong Ho Kang

Byung Su Lee

Sung June Youn

An apparatus and method for manufacturing a display device are provided. The apparatus for manufacturing the display device, includes: a stage, and an ejection head including an ejection outlet, which is open upward in a first direction opposite to a direction of gravity. The ejection head is configured to move in a second direction, which intersects the first direction, and disposed under the stage in the direction of the gravity. The ejection head includes a body part, which contains an adhesive material, and a stirring part, which is disposed in the body part and includes a roller, which rotates a predetermined number of times per unit time to control viscosity of the adhesive material.

Apparatus and method for manufacturing display device using ejection head ejecting adhesive material

An etchant composition includes: an inorganic acid compound at 9.0 wt % to 9.9 wt %; an inorganic salt compound at 5.0 wt % to 10.0 wt %; an organic acid compound at 35 wt % to 45 wt %; a lactate-based compound at 10 wt % to 20 wt %; a nitrogen cyclic compound containing oxygen at 0.1 wt % to 1.0 wt %; and a remaining amount of water such that a total weight of the etchant composition is 100 wt %, wherein the inorganic acid compound is an etchant composition having an acid dissociation constant (pKa) value of −1.0 to −3.0.

Etchant composition and manufacturing method of display device using the same

A positive active material, a manufacturing method thereof, and a lithium secondary battery including the same are disclosed, and a positive active material including lithium metal oxide particles in a secondary particle form including primary particles, wherein the secondary particle surface includes planar primary particles with a narrow angle of 70 to 90° from among angles between a c axis of the primary particles and a straight line connecting a virtual point of a center of the primary particle and a center point of the secondary particle may be provided.

Cathode active material, method for preparing same, and lithium secondary battery comprising same

It is related to a positive active material for lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery containing the same, provides that a positive active material for lithium secondary battery, wherein, it is a layered lithium metal compound comprises nickel, cobalt, and manganese, and aluminum, zirconium, and boron are doped.

Cathode active material for lithium secondary battery, production method therefor, and lithium secondary battery comprising same

The present disclosure relates to a positive active material for a lithium rechargeable battery, a manufacturing method thereof, and a lithium rechargeable battery including the positive active material, and it provides a positive active material which is a lithium composite metal oxide including nickel, cobalt, and manganese, and either has orientation in a direction of with respect to an ND axis that is equal to or greater than 29% or has orientation in a direction of [120]+[210] with respect to an RD axis that is equal to or greater than 82% in the case of an EBSD analysis with a misorientation angle (Δg) that is equal to or less than 30 degrees.

Positive active material for lithium rechargeable battery, manufacturing method thereof, and lithium rechargeable battery including same positive active material

The present disclosure relates to a positive active material for a lithium rechargeable battery and a lithium rechargeable battery including the same, which include a first compound represented by Chemical Formula 1 and a second compound represented by Chemical Formula 2, and a content of the first compound is 65 wt % or more based of the positive active material of 100 wt %.LiNiCoMnM1M2O[  Chemical Formula 1]LiNiCOMnM3M4O[  Chemical Formula 2]

Positive active material for lithium secondary battery and lithium secondary battery comprising same

A cathode active material for a lithium secondary battery includes a nickel-based lithium metal oxide particle doped with Zr and Al. The nickel-based lithium metal oxide particle includes a core portion having a constant molar content of nickel, and a shell portion surrounding an outer surface of the core portion and having a concentration gradient in which a molar content of nickel gradually decreases in a direction from an interface with the core portion to an outermost periphery. The core portion and the shell portion are doped with Al and Zr.

Cathode active material for lithium secondary battery

A backlight unit including a light guide plate (LGP), a light source module disposed adjacent to an incident surface of the LGP and configured to irradiate light to the incident surface, and a light control member disposed between the light source module and the incident surface, in which the light control member includes a reflection preventing layer disposed adjacent to the light source module and configured to prevent reflection of light, a base substrate disposed on the reflection preventing layer and configured to scatter or diffuse light transmitted through the reflection preventing layer, and a light adjusting filter disposed on the base substrate and configured to filter light including a first wavelength among light provided by the light source module.

Backlight unit and liquid crystal display including the same

A display device may include a display panel, at least one light source disposed on one side of the display panel, a circuit board to drive the light source, a light guide plate in which light emitted from the light source is incident into a surface and is emitted to another surface, and a lower frame to support the display panel and to accommodate the light source and the light guide plate. The lower frame may include a base substrate, a digitizer disposed on the base substrate, and a dummy digitizer pattern disposed on the base substrate and spaced apart from the digitizer. The circuit board may be disposed between the digitizer and the dummy digitizer pattern, and the lower frame may be bent and extend around the light source.

Display device including digitizer

A wavelength conversion member may include a first substrate and a second substrate that overlaps the first substrate. The wavelength conversion member may further include a wavelength conversion layer disposed between the first substrate and the second substrate in a first direction. The wavelength conversion member may further include a first hydrophobic membrane that overlaps at least one of the first substrate, the second substrate, and the wavelength conversion layer in a second direction perpendicular to the first direction.

Wavelength conversion member, related manufacturing method, and related backlight assembly

Growing community of inventors

Incheon, South Korea

Sang Hyuk Lee