Stretchable Display Gate Driver Shielding Against Static Electricity
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Solution Overview
Problem
Stretchable display devices are prone to damage from external static electricity, which can lead to image defects and operational failures due to the lack of effective protection for internal components.
Innovation Solution
Incorporating a blocking layer that overlaps with the gate drivers and is electrically connected to pixel connection lines, allowing for the discharge of static electricity and preventing damage to the gate drivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a stretchable display device is manufactured with flexible substrates to enable stretching and shape changing, then adaptability and versatility are improved, but reliability deteriorates due to susceptibility to static electricity damage
Solution Approach 1:
A blocking layer is introduced as an intermediary component between the gate driver and the external environment. This blocking layer acts as a mediator that prevents static electricity from reaching and damaging the gate driver, while allowing the display device to maintain its stretchable functionality through the flexible substrate.
2Device complexity
If the gate driver is exposed to external static electricity without protection, then device complexity is reduced, but harmful factors increase due to static electricity damage
Solution Approach 1:
The blocking layer is positioned in advance to cover and protect the gate driver before static electricity can cause damage. This preemptive protective structure cushions the gate driver against potential static electricity attacks, preventing image defects and operational failures without adding significant complexity to the overall device structure.
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
The solution effectively prevents image defects and ensures the normal operation of the stretchable display device by effectively discharging static electricity, thereby protecting the gate drivers from external static interference.
Implementation Method 1
at least one blocking layer disposed above and below the at least one gate transistor to prevent introduction of external static electricity
Implementation Method 2
electrically connecting the blocking layer to a pixel connection line that supplies a constant voltage
Data Source
AI summary
One or more embodiments of the present disclosure provides a stretchable display device. The stretchable display device includes a lower substrate on which a display area displaying an image and a non-display area adjacent to the display area are disposed, a plurality of pixel substrates disposed in the display area, a plurality of outer substrates disposed in the non-display area, a plurality of pixels disposed on the plurality of pixel substrates, and a plurality of gate drivers disposed on the plurality of outer substrates and outputting gate voltages to the plurality of pixels, and at least one blocking layer overlapping the plurality of gate drivers. Thus, it is feasible to prevent image defects in the stretchable display device from occurring due to external static electricity.