Z-Inversion Type Display Device and Method of Manufacturing the Same
AssigneeLG Display Co., Ltd.
InventorsDonggeun Lim, KiTaeg Shin, ChelHee Jo, Jiwon Kang
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Abstract
The present invention provides a Z-inversion type display device comprising a gate line and a data line that intersect with each other to define a pixel area on a substrate, a thin film transistor that includes a gate electrode, a semiconductor layer, a source electrode and a drain electrode, and a pixel electrode that is formed in the pixel area, and is electrically connected to the drain electrode of the thin film transistor, wherein the drain electrode completely overlaps the gate line such that a drain electrode area is wholly included in a gate line area on a plan view.
Claims13
A Z-inversion type display device comprising:
- a first gate line and a first data line that intersect with each other to define a pixel area on a substrate;
- a first transistor that includes a gate electrode, a source electrode and a drain electrode, wherein the drain electrode completely overlaps the first gate line in plan view;
- and
- a pixel electrode that is formed in the pixel area, and is electrically connected to the drain electrode of the first transistor;
- wherein the drain electrode of the first transistor has a ‘T’ shape comprising a horizontal leg and a vertical leg, wherein the horizontal leg of the ‘T’ shape drain electrode is arranged next to the source electrode and extends in parallel with the source electrode, and wherein the vertical leg of the ‘T’ shape drain electrode protrudes from the horizontal leg away from the source electrode;
- wherein the pixel electrode is electrically connected to the drain electrode of the first transistor through a contact hole.
A method of manufacturing a Z-inversion type display device, the method comprising:
- forming a gate line and a gate electrode on a substrate;
- sequentially forming a gate insulating layer and source/drain metal films on the gate electrode, forming a source electrode, a drain electrode and a data line, and forming the drain electrode completely overlaps the gate line in plan view, wherein the drain electrode has a ‘T’ shape comprising a horizontal leg and a vertical leg, wherein the horizontal leg of the ‘I’ shape drain electrode is arranged next to the source electrode, and wherein the vertical leg of the ‘I’ shape drain electrode protrudes from the horizontal leg away from the source electrode;
- forming a first protecting layer on the drain electrode, and forming a contact hole on the first protecting layer;
- and
- forming a pixel electrode on the first protecting layer through which the contact hole is formed, and forming a second protecting layer on the pixel electrode.
Dependencies are inferred from the claim text.