Samsung Electronics Co., Ltd.

Joon-Gyu Lee

Dong-Sub Kim

Sang-Yong Eom

Mi-Sun Lee

Dong-Hui Kim

A flexible display device includes a flexible display panel, a flexible printed circuit board extending from the display panel, an integrated circuit chip that is mounted on at least one surface of the flexible printed circuit board and is configured to drive the display panel, and a protection member attached to a rear surface of the display panel. When the flexible printed circuit board is flexed to be partially positioned on the rear surface of the display panel, the protection member is positioned between the display panel and the integrated circuit chip. The flexible display device prevents the integrated circuit chip stacked with the display panel from making direct contact with the display panel using the protection member. Thus, even if the display device is deformed into, for example, a flexed or rolled state, it is possible to prevent the display panel from being damaged.

Flexible display device

A driving method of an organic light emitting display device includes: classifying a plurality of luminance steps into at least a low luminance section and a high luminance section; and setting a reference luminance at a predefined level during the low luminance section and adjusting an off duty according to predetermined criteria for each step in the low luminance section.

Growing community of inventors

Ansan-si, South Korea

Joon-Gyu Lee