Display device
AssigneeLG Display Co., Ltd.
InventorsUnSang Yu, Bongchoon Kwak
Life of this patent
Estimating the term…
Abstract
A display device, by detecting a subpixel which is a defect by using an electronic fuse electrically connected to a driving transistor disposed on a subpixel and performing a repair, a display device being capable of detecting a defect and repairing by a circuit driving of the subpixel can be provided. Thus, even in the case that a repair by a physical method is not possible according to types of the display device, by detecting a defect of the subpixel and performing a repair, an image quality deterioration due to the defect of the subpixel can be prevented.
Claims14
A display device, comprising:
- a plurality of subpixels disposed on an active area of a display panel;
- and
- a light-emitting element disposed on each of the plurality of subpixels and having a first electrode and a second electrode;
- wherein a first light-emitting element disposed in a first subpixel comprises:
- a driving transistor configured to control a driving current supplied to the light-emitting element;
- an electronic fuse electrically connected between the driving transistor and the first electrode of the light-emitting element;
- and
- a capacitor having a first capacitor electrode electrically connected to a gate node of the driving transistor and a second capacitor electrode electrically connected to the light-emitting element,
- wherein one end of the electronic fuse is electrically connected to the second capacitor electrode and the light-emitting element, and another end of the electronic fuse is electrically connected to the driving transistor, and
- wherein the electronic fuse is disposed in a via amongst a stack of vias that are stacked between a source node of the driving transistor and the first electrode.
A display device, comprising:
- a first subpixel comprising a first light-emitting element, a first driving transistor configured to drive the first light-emitting element, and a first electronic fuse electrically connected to the first driving transistor;
- a second subpixel comprising a second light-emitting element, a second driving transistor configured to drive the second light-emitting element, and a second electronic fuse being open and electrically connected to the second driving transistor;
- and
- a capacitor having a first capacitor electrode electrically connected to a gate node of the first driving transistor or the second driving transistor and a second capacitor electrode electrically connected to the first light-emitting element or the second light-emitting element,
- wherein the second light-emitting element has an anode electrode that is insulated from an anode electrode of the first light-emitting element,
- wherein one end of the first electronic fuse or the second electronic fuse is electrically connected to the second capacitor electrode and the first light-emitting element or the second light-emitting element, and another end of the first electronic fuse or the second electronic fuse is electrically connected to the first driving transistor or the second driving transistor, and
- wherein the second electronic fuse is disposed in a via amongst a stack of vias that are stacked between a source node of the second driving transistor and the second light-emitting element.
Dependencies are inferred from the claim text.