Bilateral Driving Device Non-Parallel Signal Lines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional bilateral driving devices in tablet displays result in RC delays, leading to insufficient charging of pixels in the middle, causing 'dark zones' due to the farthest distance from the driving means, which affects brightness uniformity and display quality.
Innovation Solution
A bilateral driving device with a first and second source driver and driving signal lines connected in a non-parallel arrangement, such as triangular or trapezoidal wave patterns, along the edges of the display panel to reduce RC delays and enhance brightness uniformity by confusing dark and bright spots using human visual characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If bilateral driving means are disposed on opposite sides of the display panel to reduce signal transmission distance, then the driving signal transmission distance is reduced, but the pixels in the middle experience maximum RC delay due to being farthest from both driving means
Solution Approach 1:
The patent applies asymmetry by arranging the middle sites of driving signal lines in a non-parallel connection pattern (triangular wave or trapezoidal wave) rather than a symmetric parallel arrangement. This asymmetric distribution ensures that middle pixels are not all equidistant from both source drivers, thereby reducing maximum RC delay while maintaining reduced transmission distance
Solution Approach 2:
The patent changes the geometric parameter of signal line arrangement from parallel to non-parallel (triangular/trapezoidal wave patterns). This parameter change in the spatial distribution of middle sites optimizes the distance relationship between pixels and source drivers, reducing RC delay without increasing overall transmission distance
2Ease of manufacture
If driving signal lines are arranged in parallel to simplify routing, then the routing is simplified, but dark zones appear in the display panel due to insufficient charging of middle pixels
Solution Approach 1:
The patent replaces the symmetric parallel arrangement with an asymmetric non-parallel arrangement (triangular wave or trapezoidal wave patterns). This asymmetric configuration improves brightness uniformity by ensuring more equitable signal distribution to middle pixels, eliminating dark zones while remaining manufacturable
Solution Approach 2:
The patent applies local quality by specifically optimizing the arrangement of middle sites in the central region of the display panel. The triangular or trapezoidal wave pattern creates locally varied distance relationships that improve charging characteristics for middle pixels without affecting the overall parallel routing structure
Data Source
AI summary
The present application discloses a bilateral driving device and a tablet display. The bilateral driving device includes a first source driver, a second source driver and at least two driving signal lines connected to the first source driver, a second source driver, wherein the connection of the middle site of the at least two driving signal lines is not parallel to the specific edge of the display panel. By adapting the embodiment of the present application can utilize the visual characteristics of the human eye, the connection of the middle site of the at least two driving signal lines is not parallel to the edge of the display panel to confuse the dark spots and bright spots, to enhance brightness uniformity of the display panel, and improve the display quality.