Touch Signal Distribution With Organic Diodes for ESD Blocking
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Solution Overview
Problem
Display apparatuses are prone to circuit defects caused by static electricity, particularly in touch sensing devices with thin and lightweight designs.
Innovation Solution
Incorporation of a static electricity blocking unit with organic diodes, including a first and second electrode and an organic layer, connected to rectifier transistors and demultiplexers, to manage voltage levels and block static electricity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If display apparatus uses thin and lightweight design with touch sensing device, then portability and form factor are improved, but susceptibility to static electricity damage increases
Solution Approach 1:
The patent applies the 'Blessing in disguise' principle by using organic diodes to convert the harmful effect of static electricity into a beneficial protective mechanism. The organic diodes are configured to block static electricity from reaching sensitive circuit components, transforming the threat of static discharge into a controlled protective function that protects the circuit while maintaining the thin and lightweight design.
2Reliability
If static electricity blocking unit with organic diodes is added, then circuit reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies the 'Merging' principle by integrating the static electricity blocking function into the existing circuit architecture. The organic diodes are incorporated alongside the demultiplexer and rectifier transistors, combining the blocking function with the existing signal distribution and power management circuits. This integration approach adds protection while minimizing the increase in overall device complexity.
Solution Approach 2:
The organic diodes in the patent serve multiple functions: they block static electricity, manage voltage levels, and work cooperatively with the rectifier transistors and demultiplexer. This multi-functionality reduces the need for separate dedicated components, thereby improving reliability without proportionally increasing device complexity.
3Reliability
If organic diodes are used for static electricity blocking, then static electricity management is improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies the 'Parameter changes' principle by utilizing the unique electrical characteristics of organic diodes, specifically their voltage threshold and directional conductivity properties. By carefully selecting and controlling the voltage parameters and material properties of the organic diodes, the patent achieves effective static electricity blocking while maintaining compatibility with existing manufacturing processes for thin-film transistors and circuit patterns.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Reduces circuit defects by effectively managing static electricity, ensuring reliable operation of touch sensing devices in display apparatuses.
Implementation Method 1
a static electricity blocking unit electrically connected to the touch signal distribution unit and including organic diodes
Data Source
AI summary
Provided is a display apparatus including a substrate including a display area and a peripheral area outside the display area, light-emitting diodes arranged in the display area, an electrode unit including electrode groups arranged on the light-emitting diodes, a touch driving pad arranged in the peripheral area, a touch signal distribution unit arranged in the peripheral area and electrically connected between the electrode unit and the touch driving pad, and a static electricity blocking unit electrically connected to the touch signal distribution unit and including organic diodes, wherein each of the organic diodes includes a first electrode, a second electrode arranged on the first electrode, and organic layer between the first electrode and the second electrode.