Abstract: A gas barrier substrate including a flexible base material, at least one first inorganic gas barrier layer and at least one second inorganic gas barrier layer is provided. The flexible base material has an upper surface. The first inorganic gas barrier layer is disposed on the flexible base material and covers the upper surface. The second inorganic gas barrier layer is disposed on the first inorganic gas barrier layer and covers the first inorganic gas barrier layer. A water vapor and oxygen transmission rate of the second inorganic gas barrier layer is lower than that of the first inorganic gas barrier layer.

Abstract: A pixel structure includes a flexible substrate, an active device, a conductive pattern, a first insulation layer, and a pixel electrode. The active device is disposed on the flexible substrate and includes a gate, a channel, a source, and a drain. The source and the drain are connected to the channel and are separated from each other. The channel and the gate are stacked in a thickness direction. The active device is disposed between the conductive pattern and the flexible substrate. The conductive pattern is electrically connected to the drain of the active device. The first insulation layer covers the conductive pattern and has first contact holes separated from one another, and the first contact holes expose the conductive pattern. The first insulation layer is disposed between the pixel electrode and the conductive pattern. The pixel electrode is electrically connected to the conductive pattern through the first contact holes.

Abstract: A pixel structure includes a flexible substrate, an active device, a conductive pattern, a first insulation layer, and a pixel electrode. The active device is disposed on the flexible substrate and includes a gate, a channel, a source, and a drain. The source and the drain are connected to the channel and are separated from each other. The channel and the gate are stacked in a thickness direction. The active device is disposed between the conductive pattern and the flexible substrate. The conductive pattern is electrically connected to the drain of the active device. The first insulation layer covers the conductive pattern and has first contact holes separated from one another, and the first contact holes expose the conductive pattern. The first insulation layer is disposed between the pixel electrode and the conductive pattern. The pixel electrode is electrically connected to the conductive pattern through the first contact holes.

Abstract: A surface treatment method for a flexible substrate is provided. A flexible insulation substrate is provided. A surface of the flexible insulation substrate has at least one defect. A plasma etching is performed on the flexible insulation substrate to smooth a profile of the defect.

Abstract: A gas barrier substrate including a flexible base material, at least one first inorganic gas barrier layer and at least one second inorganic gas barrier layer is provided. The flexible base material has an upper surface. The first inorganic gas barrier layer is disposed on the flexible base material and covers the upper surface. The second inorganic gas barrier layer is disposed on the first inorganic gas barrier layer and covers the first inorganic gas barrier layer. A water vapor and oxygen transmission rate of the second inorganic gas barrier layer is lower than that of the first inorganic gas barrier layer.