Samsung Display Co., Ltd.

Han Ho Park

Su Jeong Kim

Dae Geun Lee

Kyung Mok Lee

Sang Won Yeo

Wu Hyen Jung

So Yeon Joo

Joong Mok Lee

Jeong Eun Park

Hyeon Deuk Hwang

Chung-Seok Lee

Hyung-Don Na

Kyung Jun Park

Chung Seok Lee

Jeong Min Ban

Chang Seob Jung

Eun Ji Park

A display device includes a display panel including a plurality of panel pads, and a panel alignment mark adjacent to the plurality of panel pads. A connection circuit board is connected to the display panel. The connection circuit board includes a plurality of input/output pads and a plurality of dummy pads adjacent to the plurality of input/output pads. Some of the plurality of dummy pads overlap the panel alignment mark in a thickness direction of the display device.

Display device including a panel alignment mark

A display device includes a substrate, conductive pads arranged on the substrate over a plurality of rows, and a drive circuit chip including bumps arranged over a plurality of rows to be electrically connected with the conductive pads, and the conductive pads arranged in a same row are arranged in parallel, and the bumps arranged in a same row are arranged in a zigzag form so as to be partially shifted.

Display device

A method of measuring adhesive strength includes setting an evaluation time (t), fixing a substrate and an adhesive member to a measurement device, pulling the adhesive member fixed to the measurement device with a first measurement force (F) for the evaluation time (t), pulling the adhesive member fixed to the measurement device is pulled with a second measurement force (F), which is obtained by increasing the first measurement force (F) by a preset amount, for the evaluation time (t), and determining a reference measurement force (F) which is a static force applied to the adhesive member when a distance by which a first portion of the adhesive member is detached from the substrate is equal to a preset distance (d) is determined.

Method of measuring adhesive strength

A display device includes a display panel, a printed circuit board (PCB), and a flexible printed circuit board (FPCB). The display panel includes a first pad portion. The PCB includes a second pad portion. The FPCB includes a first end portion and a second end portion. The first end portion is connected to the first pad portion, and the second end portion is connected to the second pad portion. The second pad portion includes a first pad group and a second pad group, each including a plurality of test pads. One test pad of the first pad group is connected to one test pad of the second pad group.

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Yongin-si, South Korea

Han Ho Park