Lg Display Co., Ltd.

ChangHoon Han

Bongchul Kim

JaeHyun Kim

Ryosuke Tani

Jaewook Park

KyungHyun Choi

Yongyub Kim

Woosub Kim

The present exemplary embodiments relate to measurement of a characteristic of a driving transistor and sensing driving therefor. Provided are a data driver, an organic light emitting display panel, an organic light emitting display device, and a driving method thereof which are capable of measuring characteristics of a driving transistor even at a data voltage which is not so high within a short sensing time by simultaneously sensing the characteristics of the driving transistors for two or more sub pixels, among a plurality of sub pixels commonly connected to the sensing lines, while measuring characteristics (for example, a threshold voltage or a mobility) of the driving transistor.

Data driver and organic light emitting display panel, display device, and driving method for sensing and compensating a mobility of the driving transistor

Disclosed is a rollable flexible display device. The rollable flexible display device includes, for example, a display panel, a source board, and a panel roller unit. The panel roller unit provides a mechanical structure for rolling the display panel and the source board along an outer circumferential surface thereof. The panel roller unit may have a region forming a curved surface and a region forming a planar surface.

Rollable flexible display device

Growing community of inventors

Paju-si, South Korea

ChangHoon Han