Lg Display Co., Ltd.

Nam Kook Kim

Youn Gyoung Chang

Soon Sung Yoo

Seung Hee Nam

Sung Woo Choi

Kyung Ha Lee

Sang Hyuk Won

Hwan Keon Lee

Seon Hee Lee

Seon Hui Hwang

A back-light unit including light-emitting chips and a display apparatus are disclosed. The back-light unit includes a driving voltage line on a substrate, and a ground voltage line spaced apart from the driving voltage line. The light-emitting chips are on a lower insulating layer covering the driving voltage line and the ground voltage line. A driving chip electrically connected to the ground voltage line may be on the substrate. Each of the light-emitting chips may be electrically connected between the driving voltage line and the driving chip by emission connecting lines. A driving dummy pattern and/or a ground dummy pattern is between the light-emitting chips and the emission connecting lines. The driving dummy pattern is electrically connected to the driving voltage line, and the ground dummy pattern is electrically connected to the ground voltage line. Thus, a luminance difference of the light-emitting chips may be prevented or at least reduced.

Back-light unit having light-emitting chips and display apparatus having the same

A display device including a backlight unit that includes a barrier layer disposed between a light-emitting chip and an electrode pad to reduce the contact area between a solder and the electrode pad due to the barrier layer, so that a portion of the electrode pad overlapping with the barrier layer is left behind without being diffused into the solder, and rework can be performed on a process of mounting the light-emitting chip.

Backlight unit and display device including the same

A touch display apparatus is provided. The touch display apparatus may include an encapsulating unit covering light-emitting devices, a touch sensor on the encapsulating unit, and a black matrix on the touch sensor. The touch sensor may include first touch electrode disposed side by side, first bridge electrodes connecting the first touch electrodes in a first direction, second touch electrodes disposed between the first touch electrodes, and second bridge electrodes connecting the second touch electrode in a second direction perpendicular to the first direction. The second bridge electrodes may cross the first bridge electrodes. The second bridge electrodes may be disposed on a layer different from the second touch electrodes. For example, the second touch electrodes may be disposed on the same layer as the first touch electrodes and the first bridge electrodes. The planar shape of the black matrix may be the same as the planar shape by the first touch electrodes, the first bridge electrodes and the second touch electrodes. Thus, in the touch display apparatus, the process efficiency may be improved.

Touch display apparatus and method of manufacturing the same

Provided are a roller apparatus, a printing method and a method of fabricating an LCD device using the same, which can minimize the number of processes and a printing defect. In the printing method, first patterns are formed on a blanket. The first patterns have different surface energy from that of the blanket, and the blanket is formed around a roller. The roller is rotated and a printing material is dropped to form second patterns on the blanket between the first patterns. The second patterns are transferred from the roller onto a substrate.

Roller apparatus, printing method and method of fabricating liquid crystal display device using the same

Disclosed is a method of fabricating a display device. The method includes providing a substrate in which a display region and a pad region formed around the display region are defined, forming a conductive layer on the substrate, forming a mask pattern by rolling a roller on the conductive layer, and patterning the conductive layer using the mask pattern to form a line in the display region and a pad in the pad region. The pad is formed of a pattern having a second width corresponding to a first width of the line.

Method of fabricating display device

An alignment key, a method for fabricating the alignment key, and a method for fabricating a thin film transistor substrate using the alignment key are provided. The alignment key includes a base substrate, a first alignment key and a first mark portion of a second alignment key, which are formed on the base substrate using a printing roll, a dielectric that is formed on the base substrate to cover the first alignment key, and a second mark portion of the second alignment key, which is formed on the dielectric and at least partly overlaps the first mark portion of the second alignment key.

Alignment key, method for fabricating the alignment key, and method for fabricating thin film transistor substrate using the alignment key

Provided are an alignment key, a method for fabricating the alignment key, and a method for fabricating a thin film transistor substrate using the alignment key. The method for fabricating the alignment key includes forming a first metal layer on a base substrate, forming a first alignment key and a first mark portion of a second alignment key by selectively patterning the first metal layer, forming a dielectric on the first metal layer, forming a second metal layer on the dielectric, and forming a second mark portion of the second alignment key on the dielectric by selectively patterning the second metal layer.

Growing community of inventors

Gyeonggi-do, South Korea

Nam Kook Kim