Samsung Display Co., Ltd.

Won-Ju Shin

Kyung-Ho Hwang

Si-Beak Pyo

Hee-Seong Jeong

Dong-Hwan Lee

Jin-Young Jeon

Chang-Yun Moon

A display device includes a display panel including a gate line, a data line, and a pixel at a crossing region of the gate line and the data line, a timing controller configured to generate a gate driving control signal, a data driving control signal, and a power control signal based on a display period corresponding to a time interval of frames, a gate driver configured to provide a gate signal to the pixel through the gate line based on the gate driving control signal, a data driver configured to provide a data signal to the pixel through the data line based on the data driving control signal, and a power supply configured to generate a power voltage to drive the pixel, and configured to adjust the power voltage based on the power control signal during the display period.

Display device

An organic light emitting display device includes a display panel including pixels that includes an organic light emitting diode that emits light based on a driving current, a data driver providing a data signal to the pixels through a data line, a scan driver providing a scan signal to the pixels through a scan line, an emission control driver providing an emission control signal to the pixels through an emission control line, a first power provider providing a first high power voltage to the pixels through a first power providing line and a second power provider providing a second high power voltage to the pixels through a second power providing line and coupled to the first power provider. The second power provider includes a static current circuit that maintains the driving current having uniform value when the display panel is operated in a low frequency driving mode.

Organic light emitting display device and electronic device having the same

A display panel test apparatus that may include: a first measurer measuring first R, G, and B components of light emitted from a display panel at a first viewing angle; a second measurer measuring second R, G, and B components of light emitted from the display panel at a second viewing angle; a color coordinate calculator calculating a first xy color coordinate at the first viewing angle using the first R, G, and B components and calculating a second xy color coordinate at the second viewing angle using the second R, G, and B components; and a panel controller compensating a target color coordinate of the display panel to include the first xy color coordinate and the second xy color coordinate into a specification area on a color coordinate system.

Growing community of inventors

Cheonan-si, South Korea

Won-Ju Shin