Functional Panel Differential Signal Shielding
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Solution Overview
Problem
Current differential signal line groups in display devices are prone to external signal interference due to manufacturing process limitations, leading to reduced signal transmission reliability.
Innovation Solution
A functional panel design featuring differential signal line groups paired with corresponding ground line groups on the same side of a base substrate, where each ground line group connects to a shared reference ground, effectively shielding external interference and improving signal transmission reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If differential signal line groups are used for high-speed data transmission, then data transmission rate is improved, but susceptibility to external signal interference increases
Solution Approach 1:
The patent introduces ground lines as intermediary elements between differential signal lines and external environment. These ground lines act as mediators that provide a controlled reference potential and intercept external interference before it reaches the signal lines, thus protecting the high-speed data transmission from noise while maintaining the differential signaling structure.
Solution Approach 2:
The patent converts the potentially harmful external electromagnetic interference into a controlled effect by using ground lines to capture and redirect the interference energy to ground. The ground lines essentially transform harmful interference signals into harmless ground-referenced signals, preventing them from corrupting the differential signal transmission.
2Reliability
If ground line groups are added to shield differential signal line groups, then signal transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges the ground line groups with the differential signal line groups into integrated shielding structures. By combining multiple ground lines around each differential signal line group and connecting them to a common reference ground, the design achieves comprehensive shielding while maintaining a compact and organized structure that does not significantly increase overall device complexity.
Solution Approach 2:
The patent segments the shielding structure into discrete ground line groups, each corresponding to a specific differential signal line group. This segmentation allows for modular implementation where each signal pair gets its own dedicated ground shielding, making the complex shielding requirement manageable through repeated standard units rather than a monolithic complex structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed solution effectively reduces external signal interference, enhancing the reliability of signal transmission in differential signal line groups by using ground lines to shield external noise and crosstalk.
Implementation Method 1
at least one ground line group on the base substrate and on a same side of the base substrate as the at least one differential signal line group... orthographic projections of the two ground lines in each ground line group on the base substrate are on both sides of an orthographic projection of a corresponding differential signal line group on the base substrate... two ground lines in the ground line group are connected to a same reference ground
Data Source
AI summary
A functional panel, a method of manufacturing the same, and a terminal are disclosed. The functional panel includes a base substrate, at least one differential signal line group on the base substrate, where each differential signal line group of the at least one differential signal line group includes two signal lines and at least one ground line group on the base substrate and on the same side of the base substrate as the at least one differential signal line group. Each ground line group of the at least one ground line group includes two ground lines. Each ground line group corresponds to each differential signal line group one-to-one, and orthographic projections of the two ground lines in each ground line group on the base substrate are on both sides of an orthographic projection of a corresponding differential signal line group on the base substrate, and two ground lines in the ground line group are connected to a same reference ground.