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US 10,706,755 B2Granted
Organic light emitting diode display and repairing method thereof
AssigneeSamsung Display Co., Ltd.
InventorsSung Bae Ju, Sang Jin Park, Dong Hyun Yang, In Kyung Yoo
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Abstract
A repairing method of an organic light emitting diode display, including: a repairability checking step for applying a first positive bias to a pixel including a driving transistor and an organic light emitting diode based on the organic light emitting diode; and a stress applying step for applying a second positive bias that is greater than the first positive bias to the organic light emitting diode.
Claims20
A repairing method for an organic light emitting diode display, comprising:
- a repairability checking step comprising applying a first positive bias to a pixel including a driving transistor and an organic light emitting diode based on the organic light emitting diode;
- and
- a stress applying step comprising applying a second positive bias that is greater than the first positive bias to the organic light emitting diode for a predetermined time period.
An organic light emitting diode display, comprising:
- an organic light emitting diode of a pixel;
- a driving transistor configured to supply a current to the organic light emitting diode;
- a storage capacitor connected to a gate electrode of the driving transistor;
- when a node where the organic light emitting diode and the driving transistor are connected is defined to as a node A,
- a second transistor and a third transistor connected between the node A and the gate electrode of the driving transistor;
- and
- when a node between the second transistor and the third transistor is defined to as a node N, an input capacitor connected between the node N and a data line,
- wherein an initialization voltage is applied to a second end of the storage capacitor,
- a driving voltage is applied to the driving transistor, and
- a second driving voltage is applied to a second end of the organic light emitting diode.
7 more elements
Dependencies are inferred from the claim text.