Display panel and display device

By incorporating display and privacy-protecting light-emitting devices and a shared voltage signal line into the display panel, the problem of sensitive information leakage in public places is solved, achieving the effects of wide-view privacy protection and structural simplification.

CN120112107BActive Publication Date: 2026-03-31WUHAN TIANMA MICRO ELECTRONICS CO LTD
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Patent Information

Application Number
CN202510435827.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-31
Estimated Expiration
2045-04-08

AI Technical Summary

Technical Problem

Existing display devices are prone to leaking sensitive information in public places and lack effective privacy protection features.

Method used

The display panel design incorporates both display light-emitting devices and privacy light-emitting devices. The privacy light-emitting devices are covered by a shielding layer. By combining the privacy pixel circuit and the display pixel circuit with shared voltage signal lines and scanning signal lines, the switching between normal and privacy display modes can be achieved.

Benefits of technology

Without affecting the front display, a wide-view privacy function is achieved, simplifying the driving circuit structure, reducing the complexity of the peripheral circuit, and meeting users' needs for active privacy protection.

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Abstract

Embodiments of the present application provide a display panel and a display device. The display panel comprises a substrate, a display light emitting device, a privacy light emitting device, a shielding layer, a display pixel circuit and a privacy pixel circuit. In a direction perpendicular to a plane in which the substrate is located, the shielding layer completely covers the privacy light emitting device, and the shielding layer does not overlap with the display light emitting device. The display pixel circuit is electrically connected with the display light emitting device, and the privacy pixel circuit is electrically connected with the privacy light emitting device. In a normal display mode, the display light emitting device emits light, and the privacy light emitting device does not emit light. In a privacy display mode, the display light emitting device and the privacy light emitting device both emit light. The privacy pixel circuit and the display pixel circuit are both electrically connected with a same voltage signal line, and / or the privacy pixel circuit and the display pixel circuit are both electrically connected with a same scanning signal line. The present application can realize an active privacy function of the display panel, and is conducive to reducing the structural complexity of a peripheral circuit of the display panel.
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