Gate Driving Unit Placement for Narrow Border Electronic Devices
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Solution Overview
Problem
There is a need for electronic devices to achieve a narrow border design while maintaining effective gate driving functionality, as existing devices struggle to minimize the area occupied by gate driving units and their wiring in peripheral areas.
Innovation Solution
The electronic device incorporates a gate driving unit disposed in the active region, featuring a receiving switch element and a buffer switch element, along with spacers and signal lines, to reduce the area occupied by the gate driving unit and its wiring in the peripheral area, allowing for a narrower border design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the gate driving unit is disposed in the peripheral area, then the gate driving functionality is maintained, but the border width increases
Solution Approach 1:
The gate driving unit is moved from the peripheral area (horizontal dimension) to the active area (utilizing vertical dimension above pixel electrodes). This spatial reconfiguration allows the gate driving circuit to occupy space above the pixel electrodes rather than expanding the peripheral area, thereby reducing border width while maintaining gate driving functionality.
Solution Approach 2:
The gate driving unit is nested within the active area by positioning it above the pixel electrodes. The receiving switch element and buffer switch element are integrated into the vertical stack above the pixel structure, effectively nesting the gate driving functionality within the existing pixel area rather than requiring separate peripheral space.
2Area of stationary object
If the gate driving unit is disposed in the active area, then the border width is reduced, but the arrangement complexity increases
Solution Approach 1:
The gate driving unit is segmented into distinct functional elements: the receiving switch element (with first and second electrodes) and the buffer switch element (with third and fourth electrodes). Each switch element is independently positioned above specific pixel electrodes, allowing for modular arrangement and simplified integration despite the three-dimensional configuration.
Solution Approach 2:
Different regions of the active area are assigned different functions: pixel electrodes occupy the primary display area, while specific regions above pixel electrodes are designated for gate driving elements. The receiving switch element is positioned above first and second pixel electrodes, while the buffer switch element is positioned above third and fourth pixel electrodes, creating localized functional zones that simplify the overall arrangement.
Data Source
AI summary
An electronic device includes a substrate including an active area and a peripheral area adjacent to the active area; a plurality of spacers disposed in the active area and including a first spacer and a second spacer; a plurality of signal lines disposed on the substrate and extending along a first direction; a plurality of gate lines disposed on the substrate and extending along a second direction; and a gate driving unit disposed in the active area and including a receiving switch element and a buffer switch element, wherein the receiving switch element is disposed corresponding to the first spacer and receives an input signal through one of the signal lines, and the buffer switch element is disposed corresponding to the second spacer and is electrically connected to the receiving switch element, wherein the buffer switch element outputs a scan signal to one of the gate lines.