Vertical Gate and Data Line Routing for Compact Display Borders
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Solution Overview
Problem
The presence of display driver circuitry along the edges of electronic devices limits the minimum achievable border size of displays, resulting in larger inactive borders than desired, which is aesthetically undesirable and inefficient in terms of space usage.
Innovation Solution
The display driver circuitry is relocated to the inactive border area, allowing gate lines to extend vertically and data lines to be routed using vertical and horizontal portions with vias, minimizing the need for border regions along the edges and enabling a more compact display design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If display driver circuitry is placed along the edges of the display, then the display can be controlled effectively, but the border size increases and display layout flexibility is reduced
Solution Approach 1:
The patent transitions from conventional horizontal gate lines to vertical gate lines, changing the dimensional orientation of signal routing. This vertical arrangement allows driver circuitry to be positioned at the top and bottom edges rather than left and right edges, enabling more compact display integration and reduced border requirements while maintaining effective pixel control
2Reliability
If display driver circuitry is placed along the edges of the display, then the display can be controlled effectively, but display layout flexibility is restricted
Solution Approach 1:
By rotating the gate line orientation from horizontal to vertical, the patent enables driver circuitry placement at different edges (top/bottom instead of left/right), thereby increasing layout flexibility and adaptability for various display configurations without compromising control effectiveness
Solution Approach 2:
The vertical gate line configuration with driver circuitry at top and bottom edges creates a universal architecture that can accommodate different display sizes, aspect ratios, and integration schemes, making the display design more versatile and adaptable to various application requirements
Data Source
AI summary
A display may have an array of pixels arranged in rows and columns. The pixels may be organic light-emitting diode pixels that each include an organic light-emitting diode and thin-film transistor circuitry for controlling the diode or may be other suitable display pixels. The pixels may form an active area of the display that displays images. Display driver circuitry may be provided in an inactive border area of the display. The display may include vertical gate lines. The display may also include data lines. The data lines may include vertical data line portions and orthogonal horizontal data line portions coupled to the vertical data line portions with vias. During operation, data from the display driver circuitry may be provided to rows of the pixels using the data lines while the vertical gate lines supply control signals to columns of the pixels.