Samsung Display Co., Ltd.

Line Corporation

Young Min Moon

Bong-Kyun Kim

Jong-Hyun Choung

Wang Woo Lee

Hong Sick Park

Sang-woo Kim

Ki-beom Lee

Seon-Il Kim

In-Bae Kim

Sam-Young Cho

Seung Ho Yoon

Young Joo Choi

Ki Tae Kim

Dae-woo Lee

Do Young Park

Jae Wook Kwon

Kyoung Yun Kim

A method of providing a chat service between a first device and a plurality of second devices, includes: creating a first chat room configured to display visual signs transmitted and received between the first device and the plurality of second devices; receiving a command to select one or more of the plurality of second devices while the first chat room is displayed on the first device; selecting the one or more of the plurality of second devices based on the command; and creating a second chat room configured to display visual signs transmitted and received between the first device and the selected one or more of the plurality of second devices.

Methods, devices and computer-readable mediums providing chat service

A method of providing a chat service includes: sequentially displaying, on a display unit of a first device, a plurality of visual signs according to at least one of transmission and reception times of the plurality of visual signs, the plurality of visual signs being included in a conversation between the first device and one or more second devices, and being transmitted between the first device and the one or more second devices; receiving an edit mode entry command to enter an edit mode in which the plurality of visual signs are editable; receiving a visual sign selection command selecting one or more of the plurality of visual signs; and changing a display order of the plurality of visual signs by moving the selected one or more of the plurality of visual signs.

A thin film transistor array panel includes: a gate line on a substrate and including a gate electrode; a first gate insulating layer on the substrate and the gate line, the first gate insulting layer including a first portion adjacent to the gate line and a second portion overlapping the gate line and having a smaller thickness than that of the first portion; a second gate insulating layer on the first gate insulating layer; a semiconductor layer on the second gate insulating layer; a source electrode and a drain electrode spaced apart from each other on the semiconductor layer; a passivation layer on the second gate insulating layer, the source electrode and the drain electrode; and a pixel electrode on the passivation layer and connected with the drain electrode. The first gate insulating layer and the second gate insulating layer have stress in opposite directions from each other.

Method for manufacturing thin film transistor array panel

A liquid crystal display includes: a substrate; a gate line and a data line disposed on the substrate; a semiconductor layer disposed on the substrate; first and second field generating electrodes disposed on the substrate; and a first protecting layer formed from the same layer as the first field generating electrode and covering at least a portion of the data line.

Liquid crystal display

An etchant composition includes ammonium persulfate (((NH))SO), an azole-based compound, a water-soluble amine compound, a sulfonic acid-containing compound, a nitrate-containing compound, a phosphate-containing compound, a chloride-containing compound, and residual water.

Etchant composition and manufacturing method for thin film transistor using the same

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Seongnam-si, South Korea

Young Min Moon