公开(公告)号：US20230023304A1

公开(公告)日：2023-01-26

申请号：US17787177

申请日：2020-11-26

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyu Oh KWON ,  Joon Yeong PARK ,  Seung Jun LEE ,  Jung Hun CHOI

IPC: H01L33/62 ,  H01L25/075 ,  H01L33/10 ,  H01L33/38

Abstract: In an LED display device according to an embodiment of the present disclosure, the LED display device comprises a second pixel driving circuit on a substrate, an LED element attached to a region not overlapping the second pixel driving circuit, including a first LED element, a second LED element and a growth substrate, and providing a double light-emitting spectrum, an element fixing layer surrounding the LED element, a first pixel driving circuit on the element fixing layer, and an element protecting layer on the first pixel driving circuit. In addition, the first LED element is controlled by the first pixel driving circuit, and the second LED element is controlled by the second pixel driving circuit. Therefore, the LED display device provides a dual emission spectrum, can realized high luminance and high definition, and can prevent a pixel defect.

公开(公告)号：US20220393088A1

公开(公告)日：2022-12-08

申请号：US17778274

申请日：2020-09-02

Applicant: LG Display Co., Ltd.

Inventor： Kyu Oh KWON ,  Jae Min SIM ,  Seung Jun LEE ,  Jung Hun CHOI

IPC: H01L33/62 ,  H01L33/38 ,  H01L33/32 ,  H01L33/00

Abstract: The present disclosure relates to an LED display device, and more particularly, to an LED display device including a repair structure for a deteriorated pixel. In the present disclosure, a subLED electrically connected to first and second connecting electrodes for applying a voltage to a LED is disposed on a deteriorated LED. Thus, deterioration of a display quality due to a deteriorated pixel is prevented. Since it is not required to remove a deteriorated LED, a fabrication cost is reduced and a process efficiency is improved.