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US 2019/0197959 A1Published application
Organic light-emitting diode display device
AssigneeLG Display Co., Ltd.
InventorsDong-In NOH, Young-Ho KIM
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Abstract
An OLED display device capable of improving picture quality by turning off an OLED element regardless of a charging time and input data of each subpixel is discussed. A reference voltage supplied to a reference line is supplied to an OLED element during at least one OLED off time after a light-emitting time and before a charging time according to control of a scan gate line and a sense gate line to turn off the OLED element. The reference voltage is lower than a threshold voltage of the OLED element.
Claims10
An organic light-emitting diode (OLED) display device, comprising:
- a panel including a plurality of subpixels, each subpixel being connected to any one of scan gate lines, any one of sense gate lines, any one of data lines, any one of reference lines, and any one of power lines;
- a scan gate driver configured to drive the scan gate lines;
- a sense gate driver configured to drive the sense gate lines;
- and
- a data driver configured to drive the data lines and the reference lines,
- wherein for at least one of the subpixels,
- the subpixel performs a charging operation during a charging time of the subpixel according to control of the scan gate line and the sense gate line,
- an OLED element of the subpixel emits light during a light-emitting time of the subpixel according to control of the scan gate line and the sense gate line,
- a reference voltage supplied to the reference line is supplied to the OLED element during at least one OLED off time after the light-emitting time and before the charging time according to control of the scan gate line and the sense gate line to turn off the OLED element, and
- the reference voltage is lower than a threshold voltage of the OLED element.
7 more elements
Dependencies are inferred from the claim text.