Curved Display Clock Bus Width Compensation
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Solution Overview
Problem
The display effect of curved display panels is affected due to different distances between clock buses and clock signal lines on different film layers, causing varying coupling capacitance values and discrepancies between the clock signal received by shift registers and the signal transmitted on the clock bus.
Innovation Solution
The widths of clock buses are set to be different in specific directions to ensure equal capacitance values between clock buses and clock signal lines, aligning with the curvature of the panel, thereby synchronizing the clock signal received by shift registers with the signal transmitted on the corresponding clock bus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display panel is curved to improve user experience and reduce area occupation, then the sensory experience and space efficiency are improved, but the clock signal received by the shift register differs from the transmitted signal due to varying distances between clock buses and clock signal lines, degrading the display effect
Solution Approach 1:
The patent applies local quality by making the clock bus width non-uniform across different regions of the display panel. Specifically, the clock bus width is adjusted according to the distance from the geometric center of the display area, with different widths in different regions to compensate for the curvature-induced capacitance variations. This localized adjustment ensures that the coupling capacitance between the clock bus and clock signal line remains consistent across the entire curved panel, thereby resolving the signal discrepancy issue while maintaining the curved display's user experience benefits.
2Ease of manufacture
If the clock bus width is uniform to simplify manufacturing, then the manufacturing process is easier, but the coupling capacitance values vary due to different distances on a curved surface, causing clock signal discrepancies
Solution Approach 1:
The patent applies parameter changes by modifying the width parameter of the clock bus based on its position on the curved display panel. The width is not kept constant but is instead varied according to a specific rule related to the distance from the geometric center of the display area. This parameter adjustment compensates for the geometric effects of curvature, ensuring that the electrical characteristics (coupling capacitance) remain consistent across different regions, thus maintaining clock signal reliability while adapting to the curved geometry.
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
This approach improves the display effect of curved display panels by ensuring consistent clock signals across the panel, reducing the impact of curvature-induced capacitance variations and enhancing visual experience.
Implementation Method 1
the capacitance values between the several clock buses and the clock signal line disconnected from the several clock buses are the same
Data Source
AI summary
A curved display panel and a method for manufacturing the same are provided. The curved display panel includes a plurality of clock buses, the clock buses extend along a first direction and are arranged along a second direction, the widths of the plurality of clock buses are different in the second direction, so that capacitance values between several clock buses and a clock signal line disconnected from the several clock buses are the same.