Display Substrate Data Selection Signal Segmentation
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Solution Overview
Problem
In high-resolution or large-size display panels, the data selection signals experience significant delay due to high impedance in the data selection signal lines, leading to non-uniform charging of sub-pixels.
Innovation Solution
The display substrate is designed with multiple data selection signal lines, each corresponding to different data lines connected to the same data selector, reducing the resistance and delay of data selection signals and improving charging uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If one data selection signal line is used to drive all data selectors, then the device complexity is reduced, but the data selection signal delay increases due to high impedance
Solution Approach 1:
The patent segments the single data selection signal line into multiple separate data selection signal lines, with each line dedicated to driving a specific data selector. This segmentation reduces the impedance of each individual signal line, thereby reducing the signal delay while maintaining manageable device complexity through systematic organization.
2Ease of manufacture
If one data selection signal line drives multiple data selectors, then the manufacturing cost is reduced, but the charging uniformity of sub-pixels deteriorates due to signal delay
Solution Approach 1:
The patent divides the data selection signal lines into multiple separate lines, where each line is dedicated to a specific data selector. This segmentation ensures that each sub-pixel column receives data selection signals with minimal delay, achieving uniform charging across all sub-pixels while maintaining cost-effectiveness through the systematic use of multiple dedicated lines.
3Loss of time
If multiple data selection signal lines are used for each data selector, then the data selection signal delay is reduced, but the device complexity increases
Solution Approach 1:
The patent segments the data selection signal distribution into multiple dedicated lines, with each line serving a specific data selector. This segmentation reduces signal delay by lowering the impedance of individual lines while organizing the increased number of lines in a systematic manner that manages device complexity through clear functional assignment.
Data Source
AI summary
A display substrate and a display apparatus are provided. The display substrate includes a base substrate; sub-pixels arranged in an array and on the base substrate; data line groups on the base substrate; each data line group includes data lines, each of which is connected to one column of sub-pixels; data selectors on the base substrate and connected to the data line groups in a one-to-one correspondence; data lines in a same data line group are connected to a same data selector; and data selection signal lines, wherein different data selection signal lines output different data selection signals; and different data lines connected to a same data selector correspond to different data selection signal lines, respectively. The display panel provided may effectively reduce the resistance on the data selection signal lines, thereby reducing the delay of the data selection signals and further improving the charging uniformity of sub-pixels.