Display Panel Shift Register Layout for Static Charge Blocking
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Solution Overview
Problem
Existing display panels are prone to damage due to static charges transferring from the frame region to the display region, affecting user experience and panel quality.
Innovation Solution
A display panel design with N-level shift registers in the frame region, featuring active layers with increased areas to enhance resistance against static charges, including a first preset active layer with a larger area than the second and third preset active layers, thereby reducing the transfer of static charges to the display region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the area of active layers in the driving circuit is increased to enhance static charge blocking, then the reliability of the display panel is improved, but the device complexity increases
Solution Approach 1:
The patent applies local quality by differentiating the area of active layers based on their functional requirements. Specifically, the first preset active layer in the driving circuit is designed with a larger area to provide enhanced static charge blocking capability, while other active layers maintain their original areas. This localized modification allows the display panel to achieve improved static charge resistance without unnecessarily increasing the complexity of the entire device structure.
2Object-affected harmful factors
If the area of the first preset active layer is increased to block static charges, then the protection of the display region is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent employs parameter changes by specifically adjusting the area parameter of the first preset active layer to be larger than that of other active layers. This parameter modification is designed to enhance the static charge blocking effect. The patent addresses manufacturing precision concerns by establishing clear area relationships (the first preset active layer area is greater than the sum of areas of second and third preset active layers) that can be controlled through standard manufacturing processes, thereby achieving the desired parameter change without excessively stringent precision requirements.
Data Source
AI summary
A display panel includes at least one driving circuit and at least one pixel circuit. A driving circuit of the at least one driving circuit provides a driving signal for a pixel circuit of the at least one pixel circuit. The driving circuit includes N-level shift registers cascaded with each other. N is greater than or equal to two. The pixel circuit provides a display signal for a display unit of the display panel. A shift register of the N-level shift registers includes at least one first transistor. The at least one first transistor includes at least one first active layer, and an active layer with a largest area among the at least one first active layer is a first preset active layer. The pixel circuit includes at least one second transistor. The at least one second transistor includes at least one second active layer.