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US 2021/0201736 A1Published application
Display Device
AssigneeLG Display Co., Ltd.
InventorsJaehyun YOU, JooHwan KIM, DongGeun BAE
Life of this patent
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Abstract
The present disclosure relates to display devices, and more specifically, to a display device with a sensor circuit capable of sensing the presence or absence of an abnormality in a signal line located in a bending area. Through these, a display device is provided that enables an accurate check to be performed for the presence or absence of an abnormality, such as a crack, or the like in signal lines located in the bending area, and thus, has a normal bending structure without defects.
Claims19
A display device comprising:
- a substrate including an active area in which a plurality of subpixels are arranged and images are displayed, and a non-active area that is an area outside of the active area;
- a data driving circuit that supplies data signals to the plurality of subpixels;
- a gate driving circuit that supplies gate signals to the plurality of subpixels;
- and
- a sensor circuit for sensing a presence or absence of an abnormality in a signal line connected to the gate driving circuit,
- wherein the non-active area of the substrate comprising:
- a driving circuit area to which the data driving circuit is electrically connected;
- a bending area that is located between the driving circuit area and the active area, and that is capable of being bent;
- and
- a link area between the bending area and the active area,
- wherein the sensor circuit comprising:
- a sensing reference signal line that delivers a sensing reference signal;
- a read-out line that delivers a read-out signal;
- and
- a sensing transistor electrically connected to the signal line, the sensing reference signal line, and the read-out line,
- wherein the sensor circuit is disposed in the link area.
13 more elements
A display device including a bending area comprising:
- a signal line arranged to pass the bending area;
- a sensor circuit connected to the signal line;
- and
- a determination circuit determining an abnormality in a signal line based on information obtained by the sensing of the sensor circuit,
- wherein the sensor circuit comprising:
- a read-out line connected to the determining circuit;
- a sensing reference signal line providing a sensing reference signal for comparing information received by the determining circuit from the sensor circuit;
- a sensing transistor connected to the signal line;
- and
- a control sensing transistor connected to the sensing reference signal line, the read-out line, and the sensing transistor.
7 more elements
Dependencies are inferred from the claim text.