Patent ID: 9293594
Filing Date: 2016-03-22
CPC Classification: G02F,G06F,H01L

Claim Text:
1. A circuit board of a display device comprising: a plurality of transistor elements on an insulating substrate, the plurality of transistor elements including: a first type of the plurality of transistor elements including an oxide semiconductor material; and a second type of the plurality of transistor elements including a semiconductor material which is different from the oxide semiconductor material; wherein each of the first type of the plurality of transistor elements and the second type of the plurality of transistor elements includes a gate portion, a drain portion and a source portion; the gate portions of the first and second types of the plurality of transistor elements are defined by a same layer; at least one portion of the drain portion of the first type of the plurality of transistor elements is defined by a same layer that defines at least one portion of the drain portion and the source portion of the second type of the plurality of transistor elements; the at least one portion of the drain portion of the first type of the plurality of transistor elements is connected to a pixel electrode; and a first distance between an upper surface of the source portion and the drain portion of the second type of the plurality of transistor elements and an upper surface of the insulating substrate is longer than a second distance between an upper surface of the at least one portion of the drain portion of the first type of the plurality of transistor elements and the upper surface of the insulating substrate.