Foldable display device and driving method thereof

By setting a capacitive sensor and detection circuit on the display panel, the bending angle of the flexible display device is monitored in real time and color deviation is corrected. This solves the problem that traditional sensors are bulky and unsuitable for thin display devices, and achieves efficient color correction for thin and light display devices.

CN116076166BActive Publication Date: 2026-07-24BOE TECHNOLOGY GROUP CO LTD +1
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Patent Information

Application Number
CN202180002133.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-08-10
Publication Date
2026-07-24
Estimated Expiration
2041-10-29

AI Technical Summary

Technical Problem

Existing technologies lack effective means to monitor the angle changes of flexible display devices in real time when they are bent, which leads to color distortion in the bending area. Traditional angle sensors are bulky and not suitable for display devices with small thickness.

Method used

A capacitive sensor is set on the display panel. A sensing capacitor is formed by the first electrode structure and the second electrode structure. The change in capacitance value is detected to obtain the bending angle. Color deviation is corrected in real time by combining the detection circuit.

Benefits of technology

It enables real-time monitoring of the bending angle of flexible display devices, reduces color shift issues in the bending area, and is suitable for thin and light display devices.

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Abstract

A foldable display device and a driving method thereof, the foldable display device comprising a display panel (100), at least one capacitive sensor (600) and at least one detection circuit; the display panel (100) comprises at least one bending area (300) configured to bend, the capacitive sensor (600) comprises a first electrode structure and a second electrode structure configured to form a sensing capacitor, and the detection circuit is connected with the first electrode structure and the second electrode structure respectively, the detection circuit is configured to detect a capacitance value of the sensing capacitor, and obtain a bending angle of the foldable display device according to the capacitance value or a capacitance change amount of the sensing capacitor.
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