Special-Shaped Display Substrate Trace Layout for Uniform Emission
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Solution Overview
Problem
Special-shaped display substrates face issues with non-uniform light emission due to inconsistent segment differences of anodes caused by varying lengths and arrangements of data signal lines and transfer connection electrodes, which are not addressed by existing technologies.
Innovation Solution
The display substrate design includes a display area with data signal lines, first and third transfer connection electrodes in three conductive layers, where the lengths of data signal lines are varied and the arrangement modes of transfer connection electrodes are consistent across pixels, ensuring uniform light emission by maintaining consistent trace configurations under the anodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data signal lines and transfer connection electrodes are arranged in special-shaped display substrates, then the display can achieve various shapes and break through rectangular limitations, but non-uniform light emission occurs due to inconsistent segment differences of anodes
Solution Approach 1:
The patent applies local quality by making different parts of the data signal lines have different lengths and configurations according to their specific positions in the display area. Each data signal line is locally optimized to compensate for position-dependent variations, ensuring that segment differences of anodes remain consistent across different regions of the special-shaped display substrate.
Solution Approach 2:
The patent changes physical parameters of the data signal lines and transfer connection electrodes, specifically varying the lengths of data signal lines and the arrangement configurations of transfer connection electrodes. By adjusting these parameters locally, the patent compensates for position-dependent variations and maintains consistent electrical characteristics across the display substrate.
2Area of stationary object
If data signal lines are extended to cover all sub-pixels in special-shaped displays, then complete coverage is achieved, but segment differences of anodes become inconsistent causing non-uniform light emission
Solution Approach 1:
The patent applies local quality by configuring different data signal lines with different lengths and transfer connection electrode arrangements according to their specific positions. This local optimization ensures that each data signal line achieves appropriate coverage while maintaining consistent anode segment differences, resolving the conflict between coverage area and segmentation consistency.
3Reliability
If transfer connection electrodes are arranged to connect data signal lines to anodes, then electrical connection is established, but inconsistent arrangements cause non-uniform light emission in special-shaped displays
Solution Approach 1:
The patent applies local quality by making the arrangement of transfer connection electrodes position-dependent. Different regions of the display substrate have differently configured transfer connection electrodes, with their numbers, positions, and arrangements locally optimized to maintain consistent anode segment differences while ensuring reliable electrical connections.
Solution Approach 2:
The patent resolves the contradiction by introducing additional design dimensions - varying both the planar arrangement and the number of transfer connection electrodes across different regions. This multi-dimensional optimization allows the patent to maintain electrical connection reliability while achieving light emission uniformity in special-shaped displays.
Data Source
AI summary
A display substrate and a display apparatus are provided. The display substrate includes a display area and a bonding area connected to the display area. The display area includes multiple data signal lines extending in a second direction, multiple first transfer connection electrodes extending in a first direction, multiple third transfer connection electrodes extending in the second direction, and multiple sub-pixels arranged in an array, at least some of the first transfer connection electrodes are respectively connected to the multiple data signal lines and are respectively connected to at least some of the third transfer connection electrodes, and the end of each third transfer connection electrode connected to a first transfer connection electrode is connected to the bonding area; lengths of the multiple data signal lines, which extend in the second direction, are not exactly the same; and the multiple sub-pixels form a plurality of pixels arranged in an array.