Surface Display Assembly with Integrated Touch Sensor Layers
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Solution Overview
Problem
Traditional electronic devices with integrated touch sensors face challenges in manufacturing complexity, increased bulk, and compromised display performance, durability, and aesthetics due to the incorporation of touch-sensors.
Innovation Solution
The implementation of a touch screen with a reduced number of layers forming a crosspoint array, where the touch sensor layers are integrated into one or more packages, allowing for a slimmer profile and simplified assembly by positioning the touch sensor above or below the display, eliminating the need for additional packaging and substrates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If traditional touch sensor integration methods are used, then touch sensor functionality is achieved, but device thickness increases and manufacturing complexity increases
Solution Approach 1:
The patent merges the touch sensor layers with the display assembly by integrating the crosspoint array directly into the display structure. The touch sensor is positioned above or below the display within the same assembly, eliminating the need for separate packaging and substrates. This consolidation reduces the overall number of components and simplifies the manufacturing process while maintaining touch sensor functionality.
Solution Approach 2:
The patent repositions the touch sensor layers from a traditional separate configuration to being integrated within the display assembly's thickness dimension. By placing the touch sensor above or below the display within the same structural envelope, the design utilizes the vertical dimension efficiently without increasing the overall device footprint or requiring additional lateral space.
2Illumination intensity
If traditional display assembly configuration is used, then display functionality is achieved, but image quality is compromised due to light loss and shadows
Solution Approach 1:
The patent extracts and eliminates unnecessary intermediate layers and substrates from the traditional display assembly configuration. By removing these obstructive elements and directly integrating the touch sensor layers with the display, the optical path is cleared, allowing light to pass through with minimal loss and eliminating shadow effects that would otherwise degrade image quality.
Solution Approach 2:
The patent positions the touch sensor layers in advance during the display assembly manufacturing process, rather than adding them as a separate post-assembly step. This preliminary integration ensures optimal alignment and minimizes the number of optical interfaces, reducing light loss and preventing shadow formation before the display is complete.
Data Source
AI summary
Presentation by a display is enhanced by placing the active elements of the display at or substantially proximate to the surface of an electronic device. A protective sheet of the display is extended to cover a front surface of the electronic device. Such placement improves image quality, reduces shadow on the display, improves spill resistance, and minimizes the overall profile of the device.