Asymmetric Circuit Board Layout for Touch Display Active Area
Solution Overview
Problem
Existing electronic display modules with touch-sensing functionality have a limited active area due to a non-transparent peripheral region, which restricts the size of the touch-sensitive area, making it desirable to minimize this peripheral region to increase the active area ratio.
Innovation Solution
The electronic display module incorporates a touch display assembly with a main substrate and a cover substrate, along with first and second circuit boards, where the projection distances from the active area to the extending areas are optimized to reduce the peripheral region, allowing for a larger active area by positioning the circuit boards at the bottom and top edges of the display module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the peripheral region is minimized to increase the active area ratio, then the active area is improved, but the structural complexity increases due to asymmetric circuit board positioning
Solution Approach 1:
The patent applies asymmetry by positioning the first circuit board at the bottom edge and the second circuit board at the top edge of the display module, creating an asymmetric layout that optimizes the active area ratio. The projection distances from the active area to the extending areas are made unequal, with the first projection distance being greater than the second projection distance, thereby minimizing the peripheral region while maintaining structural functionality.
2Area of moving object
If the projection distances are optimized to reduce the peripheral region, then the active area ratio is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent applies parameter changes by optimizing the projection distances from the active area to the extending areas of the circuit boards. Specifically, the first projection distance is set to be greater than the second projection distance, creating an asymmetric configuration that minimizes the peripheral region. This parameter optimization directly increases the active area ratio while maintaining manufacturability through defined geometric relationships.
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 configuration effectively decreases the width of the peripheral region, thereby increasing the active area ratio for a given size of the electronic device, enhancing user interaction and operational ease.
Implementation Method 1
The liquid-crystal layer is disposed between the main substrate and the cover substrate and adjacent to the sealing material
Implementation Method 2
The OLED layer is disposed between the main substrate and the cover substrate and adjacent to the sealing material
Implementation Method 3
The backlight assembly is arranged adjacent to the touch display assembly and configured to provide backlight for the touch display assembly
Data Source
AI summary
An electronic display module is provided. The electronic display module includes a touch display assembly, a first circuit board, and a second circuit board. The touch display assembly has a bottom edge and a top edge located at two sides of the touch display assembly. The first circuit board is connected to the bottom edge of the touch display assembly. The second circuit board is connected to the top edge of the touch display assembly. A distance from the active area to the bottom edge is different from a distance from the active area to the top edge.