US 11,835,810 B2
Display device
Hajime Kimura, Atsugi (JP); and Shunpei Yamazaki, Setagaya (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken (JP)
Filed by Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
Filed on Nov. 18, 2022, as Appl. No. 17/989,883.
Application 16/023,080 is a division of application No. 15/077,009, filed on Mar. 22, 2016, granted, now 10,067,621, issued on Sep. 4, 2018.
Application 17/989,883 is a continuation of application No. 17/356,791, filed on Jun. 24, 2021.
Application 17/356,791 is a continuation of application No. 16/023,080, filed on Jun. 29, 2018, granted, now 11,048,111, issued on Jun. 29, 2021.
Claims priority of application No. 2015-066887 (JP), filed on Mar. 27, 2015; and application No. 2015-081398 (JP), filed on Apr. 13, 2015.
Prior Publication US 2023/0085132 A1, Mar. 16, 2023
Int. Cl. G02F 1/1333 (2006.01); G06F 3/044 (2006.01); G06F 3/041 (2006.01)
CPC G02F 1/13338 (2013.01) [G06F 3/0412 (2013.01); G06F 3/0445 (2019.05); G06F 3/0446 (2019.05); G06F 3/04166 (2019.05)] 15 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a semiconductor layer over the substrate;
a gate electrode overlapping with the semiconductor layer;
a first insulating layer over the semiconductor layer;
a source electrode and a drain electrode over the semiconductor layer;
a second insulating layer over the source electrode and the drain electrode;
a first conductive layer over and in direct contact with the second insulating layer;
a third insulating layer over the first conductive layer;
a second conductive layer over the third insulating layer; and
a third conductive layer provided in the same layer as the source electrode and the drain electrode,
wherein the first conductive layer comprises a region functioning as one electrode of a touch sensor,
wherein the first conductive layer is in direct contact with the third conductive layer,
wherein the third conductive layer, the source electrode, and the drain electrode comprise the same material,
wherein the second conductive layer comprises a region functioning as a pixel electrode,
wherein the second conductive layer comprises a slit, and
wherein the second conductive layer is electrically connected to one of the source electrode and the drain electrode.