Display Panel Metal Layer Isolation for Main-Sub Screen Interference
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Solution Overview
Problem
Existing electronic devices face signal interference between the main screen and sub screen, leading to degradation of display quality due to the integration of camera and infrared induction elements, which affects the full screen display experience.
Innovation Solution
A display panel design with a main display region and a sub display region where the sub display region is fully or half-surrounded by the main display region, incorporating a second metal layer as an isolation layer to prevent signal interference between the first metal layer for scan signals and the third metal layer for display data signals, along with a light-transmitting sub-pixel for external light sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a sub screen is integrated into the display to achieve full screen display, then the screen ratio is improved, but signal interference between main screen and sub screen degrades display quality
Solution Approach 1:
A second metal layer is introduced as an intermediary isolation layer positioned between the first metal layer (carrying main screen scan signals) and the third metal layer (carrying sub screen display data signals). This intermediate structure blocks electromagnetic signal interference while allowing both screens to function simultaneously, resolving the contradiction between full-screen integration and signal quality
Solution Approach 2:
The display panel's metal signal transmission layers are segmented into functionally distinct groups: the first metal layer for main screen scanning, the second metal layer for isolation, and the third metal layer for sub screen data transmission. This segmentation separates interfering signal paths while maintaining overall full-screen functionality
2Adaptability or versatility
If camera and infrared induction elements are integrated into the display, then the full screen experience is improved, but signal interference from these elements degrades display quality
Solution Approach 1:
The second metal layer serves as an electromagnetic shield positioned between the signal transmission paths and the integrated camera/infrared elements in the sub screen region. This intermediary structure blocks harmful electromagnetic emissions from these components while preserving their functional integration into the full-screen display
Data Source
AI summary
The present application discloses a display panel, a display apparatus, and a display panel manufacturing method. The display panel includes a main display region and a sub display region, where the sub display region is fully-surrounded or half-surrounded by the main display region, the sub display region includes a substrate, a first insulating layer, a first metal layer, a second insulating layer, a second metal layer, a dielectric layer, a third metal layer, and a flat layer stacked successively. A signal line of the first metal layer is used to transmit a scan signal of the main display region, and a signal line of the third metal layer is used to transmit a display data signal of the sub display region; the second metal layer is used as an isolation layer for isolating signal interference between the first metal layer and the second metal layer.