Display Substrate Signal Layout for Faster Panel Initialization
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Solution Overview
Problem
As screen sizes increase and refresh frequencies rise, touch panels face challenges with insufficient charging time and loading, necessitating a solution to improve initialization signal transmission efficiency.
Innovation Solution
A display substrate design featuring a grid-shaped initialization signal transmission layer with staggered transmission portions, reducing layout density and increasing spacing between transmission lines to enhance charging speed and reduce loading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the initialization signal transmission layer uses a conventional layout, then the structure is simple, but the charging time is insufficient and loading is excessive
Solution Approach 1:
The initialization signal transmission layer is divided into multiple transmission portions (first transmission portions and second transmission portions) that are staggered arranged. This segmentation allows the signal to be transmitted through multiple parallel paths simultaneously, reducing the charging time while distributing the complexity across multiple structured components rather than a single complex structure.
Solution Approach 2:
The patent introduces a staggered arrangement in the vertical dimension (second direction) alongside the horizontal arrangement (first direction). By positioning second transmission portions at different vertical levels between adjacent first transmission portions, the design utilizes three-dimensional space to increase charging capacity without significantly increasing the planar footprint, thus reducing charging time while controlling structural complexity.
2Productivity
If the transmission portions are arranged densely, then the layout is compact, but the charging capacity is insufficient
Solution Approach 1:
The transmission layer is segmented into multiple independent transmission portions that can operate in parallel. This segmentation allows each portion to contribute to the total charging capacity independently, increasing overall charging capacity without requiring all portions to occupy the same spatial area, thus maintaining compact layout while improving productivity.
Solution Approach 2:
The patent utilizes vertical stacking (second direction) to arrange transmission portions at different levels. This dimensional transition allows multiple transmission paths to occupy the same planar footprint at different heights, effectively increasing charging capacity without proportionally increasing the layout area on the base substrate.
3Speed
If the spacing between transmission lines is increased, then the charging speed improves, but the layout area increases
Solution Approach 1:
The patent resolves this contradiction by transitioning to a three-dimensional arrangement where second transmission portions are positioned at different vertical levels. This allows increased horizontal spacing between adjacent transmission portions to improve charging speed while the vertical stacking maintains compact planar footprint, thus decoupling the trade-off between speed and area.
Solution Approach 2:
By segmenting the transmission layer into multiple staggered portions, the patent creates independent charging paths that can be spaced apart to improve charging speed without requiring the entire layout area to be expanded. Each segmented portion maintains optimal spacing for speed while the overall structure remains compact through vertical arrangement.
Data Source
AI summary
A display substrate includes: a base substrate and an initialization signal transmission layer arranged on the base substrate; the initialization signal transmission layer includes a plurality of first transmission portions and a plurality of second transmission portions; the plurality of first transmission portions are arranged along a first direction, the first transmission portion includes at least a portion extending along the second direction, the second direction intersects the first direction; the second transmission portion includes at least a portion extending along the first direction, adjacent first transmission portions are coupled through at least one second transmission portion; the plurality of first transmission portions include a target transmission portion, a second transmission portion located between the target transmission portion and an adjacent previous first transmission portion and a second transmission portion located between the target transmission portion and an adjacent next first transmission portion are staggered along the second direction.