Display Data-Line Routing in Different Layers Around Camera Through-Holes
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Solution Overview
Problem
Existing display devices face challenges in maximizing display area while accommodating camera modules, often requiring non-display areas that reduce the effective viewing space and increasing load differences between data lines due to bridge electrodes.
Innovation Solution
The display device incorporates first and second data lines in different layers, with the first data line in a first data layer and the second data line in a second data layer, connected via bridge electrodes, and includes a through hole surrounded by a wiring area where data lines are adjacent but without bridge electrodes, allowing the camera to overlap with the display area and minimizing load differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a through hole is formed in the display area to accommodate a camera module, then the camera can be positioned within the display area, but data lines must be routed around the through hole requiring bridge electrodes which increases device complexity and load imbalance
Solution Approach 1:
The patent applies multi-layer routing by forming data lines in different layers (first data line in first layer, second data line in second layer) to bypass the through hole. This vertical dimensionality change allows data lines to route around the obstacle without requiring bridge electrodes, reducing structural complexity while maintaining the through hole in the display area for camera placement.
2Area of stationary object
If data lines are routed adjacent to each other around a through hole, then the wiring area can be minimized, but load differences between data lines increase due to unequal path lengths
Solution Approach 1:
By routing data lines in different layers, the patent equalizes the path lengths of adjacent data lines around the through hole. The first data line and second data line are positioned in different layers such that their routing paths have comparable lengths, minimizing load differences and ensuring balanced signal transmission while keeping the wiring area compact.
3Adaptability or versatility
If bridge electrodes are used to connect data lines in different layers, then data lines can be routed around the through hole, but the number of bridge electrodes increases device complexity
Solution Approach 1:
The patent uses multi-layer routing to provide flexible data line paths around the through hole while minimizing the need for bridge electrodes. By utilizing different layers, data lines can bypass the through hole obstacle without requiring numerous inter-layer connections, thus maintaining routing flexibility while reducing the number of bridge electrodes and overall device complexity.
Data Source
AI summary
A display device comprising: first and second pixels; a first data line connected to the first pixel and configured to have data voltages applied thereto; and a second data line connected to the second pixel, the second data line being adjacent to the first data line, and configured to have the data voltages applied thereto, wherein the first data line includes a 1A-th data line which is in a first data layer, and the second data line includes a 2B-th data line which is in a second data layer different from the first data layer.