Electronic Device Protection Layer for Circuit Reliability
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Solution Overview
Problem
Existing electronic devices face challenges in protecting sensitive components like driving circuit boards in the non-display areas without requiring additional manufacturing steps, as these areas are often exposed and need functional layers for protection.
Innovation Solution
The electronic device incorporates a protection layer that includes color protection parts and a light blocking protection part, which are made of specific materials and strategically positioned over the peripheral areas to cover the circuit layer, including a bent portion, without overlapping certain sub-peripheral portions, thereby protecting the sensitive components without adding separate manufacturing steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If functional layers are added to protect the exposed non-display area and sensitive elements, then the protection and reliability are improved, but the manufacturing complexity and number of manufacturing steps increase
Solution Approach 1:
The filter layer is designed to perform multiple functions: it serves as both the optical filter for the display area and as the protection layer for the non-display area. By making the filter layer extend into the non-display area and incorporating light blocking parts and color protection parts, a single layer structure achieves both display filtering and circuit protection, eliminating the need for separate protective layers and reducing manufacturing complexity
Solution Approach 2:
The patent merges the protection function with the existing filter layer by extending it into the non-display area. The light blocking part and color protection part are integrated into the filter layer structure, combining the protection function with the existing optical filtering function in a unified layer design, thereby avoiding additional manufacturing steps
2Reliability
If the protection layer covers the entire peripheral area including bent portions, then the protection coverage is improved, but the manufacturing precision and alignment difficulty increase
Solution Approach 1:
The protection layer is designed with different structures for different regions: the light blocking part uses black pigment for areas requiring complete light blockage, while the color protection part uses colored pigment for areas where color matching is important. This localized differentiation allows each region to be optimized for its specific protection needs while maintaining manufacturability through region-specific design strategies
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 solution effectively reduces the visibility of the peripheral areas while providing adequate protection to the circuit layer and sensitive components, enhancing the device's reliability and manufacturing efficiency by integrating the protection layer with the existing filter layer processes.
Implementation Method 1
a light blocking protection part that includes a black pigment or dye
Implementation Method 2
a color protection part, that includes a green protection part, a blue protection part, and a red protection part
Data Source
AI summary
An electronic device includes a base layer that is divided into an active area and a peripheral area adjacent to the active area. A circuit layer is disposed on the base layer. A display element layer is disposed on the circuit layer and corresponds to the active area. A sensor layer is disposed on the display element layer. A filter layer is disposed on the sensor layer and corresponds to the active area. The filter layer includes a light blocking part and a color filter part. A protection layer is disposed on the circuit layer and corresponds to the peripheral area. The protection layer includes a color protection part or a light blocking protection part.