Display Substrate Integrated Structure for High Resolution Layout
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Solution Overview
Problem
The challenge in display technology is to achieve high-resolution display products while minimizing layout space and reducing layout difficulty, which is hindered by the complexity of subpixel arrangement and increased production costs.
Innovation Solution
The display substrate incorporates a base substrate with sub-pixels arranged in an array, featuring integrated structures for reference signal lines, scan lines, and transistors, which reduces layout space and eliminates the need for additional switching patterns, allowing for simultaneous formation of electrodes and signal lines in the same process, thereby simplifying manufacturing and improving yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional subpixel arrangement methods are used, then display resolution can be achieved, but layout space increases and layout difficulty increases
Solution Approach 1:
The patent merges the reference signal line and the first electrode of the second transistor into an integrated structure, eliminating the need for separate switching patterns. This integration reduces the number of independent components and their associated layout space while maintaining the required display resolution through optimized signal transmission paths.
Solution Approach 2:
The integrated structure serves multiple functions simultaneously: it acts as both the reference signal line for voltage reference and the first electrode of the second transistor for switching control. This multi-functionality reduces the overall component count and layout complexity while preserving high-resolution display capabilities.
2Measurement precision
If traditional subpixel arrangement methods are used, then display resolution can be achieved, but layout difficulty increases
Solution Approach 1:
By combining the reference signal line and transistor electrode into a single integrated structure, the patent reduces the number of separate patterning steps and alignment requirements. This integration simplifies the manufacturing process and reduces layout difficulty while maintaining the precision needed for high-resolution displays.
3Reliability
If additional switching patterns are used, then connection performance can be improved, but production costs increase
Solution Approach 1:
The integrated structure eliminates the need for additional switching patterns by incorporating the switching function directly into the reference signal line structure. This reduction in pattern complexity decreases manufacturing steps and material usage, thereby lowering production costs while maintaining reliable electrical connections through the integrated design.
4Area of stationary object
If integrated structures are used, then layout space is reduced and manufacturing is simplified, but connection performance must be maintained
Solution Approach 1:
The integrated structure merges the reference signal line and transistor electrode while maintaining their electrical functions through careful design of the integration interface. This ensures that connection performance is preserved despite the reduced layout space, achieving both compactness and reliability.
Data Source
AI summary
A display substrate and a display device are provided. The display substrate includes: a base substrate and a plurality of sub-pixels arranged on the base substrate, the plurality of the sub-pixels are arranged in an array, the sub-pixel includes: a reference signal line and a second scan line; and a sub-pixel driving circuit including a driving transistor and a second transistor, a gate electrode of the second transistor is coupled to the second scan line, a first electrode of the second transistor and the reference signal line form an integrated structure, a second electrode of the second transistor is coupled to a gate electrode of the driving transistor.