Patent ID: 8654431

Claim:
A method of manufacturing an active matrix electrochromic device, the method comprising: preparing a first substrate comprising: a thin film transistor including a gate electrode, a source electrode, and a drain electrode, and a pixel electrode electrically connected to the drain electrode of the thin film transistor; immersing the first substrate and a mesh spaced apart from each other in a solution for forming an electrochromic semiconductor layer in an electrophoretic process; and while the first substrate is immersed in the solution so that the pixel electrode contacts the solution, the forming an electrochromic semiconductor layer includes: opening a channel of the thin film transistor by applying a voltage to the gate electrode, generating a potential difference between the pixel electrode and the mesh by connecting a voltage source between a terminal electrically connected to the source electrode, and the mesh, and depositing materials in the solution on the pixel electrode, and thereby forming the electrochromic semiconductor layer.