Display Touch Electrodes With Grid And Code Patterns
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Solution Overview
Problem
Current display devices face challenges in accurately sensing touch inputs with high resolution, particularly when using natural body parts like fingers, due to limitations in existing touch input systems and technologies.
Innovation Solution
The implementation of a display device with a touch input system that incorporates grid patterns and code patterns on the display panel, where grid patterns serve as reference points and code patterns help in calculating touch coordinates, allowing for precise touch input detection without the need for additional processing steps or separate work processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If grid patterns and code patterns are formed on the display panel, then touch input detection precision is improved, but device complexity increases
Solution Approach 1:
The patent combines grid patterns and code patterns directly onto the display panel during the manufacturing process, merging the touch detection reference structures with the display device itself rather than using separate components. This integration improves touch input detection precision while avoiding the complexity of additional separate systems.
Solution Approach 2:
The display panel serves multiple functions: it displays images and simultaneously provides touch input detection references through the integrated grid and code patterns. This multi-functionality allows the same structure to serve both display and touch sensing purposes, improving measurement precision without proportionally increasing device complexity.
2Measurement precision
If additional processing steps are added for touch coordinate calculation, then touch input accuracy is improved, but manufacturing cost increases
Solution Approach 1:
The grid patterns and code patterns are formed during the display panel manufacturing process itself, performing the preparation of touch detection references in advance. This preliminary action eliminates the need for separate post-manufacturing processing steps, maintaining high touch input accuracy while avoiding increased manufacturing costs.
3Measurement precision
If complex touch sensing processing is implemented, then touch coordinate calculation precision is improved, but power consumption increases
Solution Approach 1:
The grid patterns and code patterns on the display panel automatically provide reference information for touch coordinate calculation without requiring complex external processing. The system uses the pre-formed patterns to self-determine touch coordinates, improving precision while minimizing additional power consumption compared to systems requiring complex real-time processing.
Data Source
AI summary
The present disclosure relates to a display device, a touch input device, and a touch input system, where the display device comprises: a display unit including a plurality of light emitting areas; a plurality of touch electrodes disposed between the plurality of light emitting areas and configured to sense a touch; a plurality of grid patterns separated from the plurality of touch electrodes in a preset shape or formed integrally with the plurality of touch electrodes; and a plurality of code patterns formed in a preset code shape in some areas of a front surface corresponding to the plurality of touch electrodes, wherein the plurality of grid patterns comprise grid reference points of intersecting grid reference lines, and are respectively formed at positions corresponding to the grid reference points.