Display panel and display device

By employing a reused and independent power layer design in the OLED display panel, independent power control for different color sub-pixels is achieved, solving the problem of power waste in OLED display products under the condition of brightness consistency of different color sub-pixels, and reducing the overall power consumption of the display panel.

WO2026025270A1PCT designated stage Publication Date: 2026-02-05BOE TECHNOLOGY GROUP CO LTD +1
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Patent Information

Application Number
PCT/CN2024/108389
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-07-30
Publication Date
2026-02-05

AI Technical Summary

Technical Problem

In existing OLED display products, when the R, G, and B sub-pixels display the same brightness, the current flowing through the device is inconsistent, resulting in excessively high margins in the saturation areas of some sub-pixels, leading to wasted power consumption.

Method used

The design employs at least two power layers, including a multiplexed power layer and an independent power layer. The multiplexed power layer forms a grid structure, and sub-pixels are coupled to different power layers respectively, enabling independent power control of sub-pixels of different colors and adjusting their saturation margin.

Benefits of technology

By independently controlling the power signals of sub-pixels of different colors, the power consumption of the display panel is reduced, the power consumption of the PMIC is reduced, and the uniformity of the power signal is improved.

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    Figure CN2024108389_05022026_PF_FP_ABST
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Abstract

Provided in the present disclosure are a display panel and a display device. The display panel comprises: a base substrate and a plurality of sub-pixels disposed on the base substrate, wherein the plurality of sub-pixels comprise sub-pixels of a plurality of colors. The display panel further comprises at least two power layers, each of which is connected to a different power signal input terminal, wherein the at least two power layers comprise a multiplexed power layer and an independent power layer; the multiplexed power layer comprises a first multiplexed film sub-layer and a second multiplexed film sub-layer, at least part of the first multiplexed film sub-layer is located between the second multiplexed film sub-layer and the base substrate, and the first multiplexed film sub-layer and the second multiplexed film sub-layer are coupled to form a grid structure; sub-pixels of two colors among the plurality of sub-pixels are respectively coupled to first multiplexed power sub-layers in the same multiplexed power layer; and sub-pixels of at least one color among the plurality of sub-pixels are connected to one independent power layer.
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Citation Information

Patent Citations

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    CN115132810A

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    CN117059029A

  • Organic light-emitting diode (OLED) display and method of manufacturing the same

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  • Display substrate and display device

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