公开(公告)号：US12198625B2

公开(公告)日：2025-01-14

申请号：US18137485

申请日：2023-04-21

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Hyun Lee ,  Dae Sik Lee ,  Keun Oh Kang ,  Si Duk Sung ,  Song Yi Han

IPC: G09G3/3233

Abstract: The present inventive concept provides a display device including a pixel unit which includes pixels, a sensing unit connected to the pixels through sensing lines, a first power voltage generator connected to the pixels through a first power line and generating a first power voltage for driving the pixels, a second power voltage generator connected to the pixels through the first power line and generating a second power voltage for sensing the pixels, and a timing controller selectively controlling operations of the first power voltage generator and the second power voltage generator according to a driving method of the pixel unit, and a method driving the same.

公开(公告)号：US11170686B2

公开(公告)日：2021-11-09

申请号：US17023806

申请日：2020-09-17

Applicant: Samsung Display Co., Ltd.

Inventor： Keun Oh Kang ,  Dae-Sik Lee ,  Ji Youn Seo ,  Jong Jae Lee

IPC: G09G3/20

Abstract: A display device includes a display panel including a plurality of pixels, a controller which generates a gate reference signal, a gate control circuit which outputs a gate driving signal based on the gate reference signal, and a gate driving circuit which provides gate signals to the plurality of pixels based on the gate driving signal. The gate control circuit includes a protection enable circuit which detects a first period of the gate reference signal, determines whether the period of the gate reference signal is changed, and generates a protection enable signal when the first period of the gate reference signal is not changed, and an over-current protection circuit which generates an over-current occurrence signal by detecting an over-current of the gate driving signal, and stops outputting the gate driving signal based on the over-current occurrence signal and the protection enable signal.