Patent ID: 10727309

Abstract:
A thin film transistor array panel includes a first conductive layer (102) including a gate electrode; a channel layer (104) disposed over the gate; and a second conductive layer (105) disposed over the channel layer (104). The second conductive layer (105) includes a multi-layered portion defining a source electrode (105a) and a drain electrode (105b), which includes a first sub-layer (105-1), a second sub-layer (105-2), and a third sub-layer (105-3) sequentially disposed one over another. Both the third and the first sub-layers (105-3, 105-1) include indium and zinc oxide materials. An indium to zinc content ratio in the first sub-layer (105-1) is greater than that in the third sub-layer (105-3). The content ratio differentiation between the first and the third sub-layers (105-1, 105-3) affects a lateral etch profile associated with a gap (106) generated in the second conductive layer (105) between the source and the drain electrodes (105a, 105b), where the associated gap (106) width in the third sub-layer (105-3) is wider than that in the first sub-layer (105-1).